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5ddbe8e4 TM |
1 | Internet Systems Consortium DHCP Distribution |
2 | Version 4.3.2 | |
3 | 05 March 2015 | |
72c7bd79 | 4 | |
5ddbe8e4 | 5 | Release Notes |
72c7bd79 | 6 | |
5ddbe8e4 | 7 | NEW FEATURES |
16449d9c | 8 | |
5ade3c84 | 9 | The major "theme" for ISC DHCP 4.3.x was to update the support for |
324257e3 SR |
10 | DHCPv6 to include several of the features that have been available |
11 | for DHCPv4. These include: | |
37ec5845 | 12 | |
324257e3 SR |
13 | - Support the use of classes |
14 | ||
15 | - Support for on_commit, on_expiry and on_release statements | |
16 | ||
4809ef5c | 17 | - Better logging of address assignments |
324257e3 SR |
18 | |
19 | - Support for using DHCPv6 relay options in expressions | |
20 | ||
21 | This release also adds suppport for the standard DDNS as described in the | |
22 | current RFCs as well as enhancing support for dynamically adding and removing | |
23 | subclasses via OMAPI. | |
98bf1607 | 24 | |
01a54c17 EH |
25 | There are a number of DHCPv6 limitations and features missing in this |
26 | release, which will be addressed in the future: | |
98bd7ca0 | 27 | |
01a54c17 | 28 | - Only Solaris, Linux, FreeBSD, NetBSD, and OpenBSD are supported. |
3a16098f | 29 | |
adbef119 DH |
30 | - DHCPv6 includes human-readable text in status code messages, in |
31 | English. A method to reconfigure or support other languages would | |
80778e94 | 32 | be preferable. |
98bd7ca0 DH |
33 | |
34 | - The "host-identifier" option is limited to a simple token. | |
35 | ||
98bd7ca0 | 36 | - The client and server can only operate DHCPv4 or DHCPv6 at a time, |
45d545f0 | 37 | not both. To use both protocols simultaneously, two instances of the |
6de1f33e | 38 | relevant daemon are required, one with the '-6' command line option. |
4ff4053b | 39 | |
01a54c17 EH |
40 | For information on how to install, configure and run this software, as |
41 | well as how to find documentation and report bugs, please consult the | |
42 | README file. | |
ca4606b5 | 43 | |
01a54c17 EH |
44 | ISC DHCP uses standard GNU configure for installation. Please review the |
45 | output of "./configure --help" to see what options are available. | |
fe5b0fdd | 46 | |
01a54c17 EH |
47 | The system has only been tested on Linux, FreeBSD, and Solaris, and may not |
48 | work on other platforms. Please report any problems and suggested fixes to | |
49 | <dhcp-users@isc.org>. | |
98bd7ca0 | 50 | |
fef8c6f0 SR |
51 | ISC DHCP is open source software maintained by Internet Systems |
52 | Consortium. This product includes cryptographic software written | |
53 | by Eric Young (eay@cryptsoft.com). | |
54 | ||
b31fe1d5 TM |
55 | Changes since 4.3.2 |
56 | ||
bc549dd9 SR |
57 | - The server now does a better check to see if it can allocate the memory |
58 | for large blocks of v4 leases and should provide a slightly better error | |
59 | message. Note well: the server pre-allocates v4 addresses, if you use | |
60 | a large range, such as a /8, the server will attempt to use a large | |
61 | amount of memory and may not start if there either isn't enough memory | |
62 | or the size exceeds what the code supports. | |
63 | [ISC-Bugs #38637] | |
64 | ||
b31fe1d5 TM |
65 | - The server will now reject unicast Request, Renew, Decline, and Release |
66 | messages from a client unless the server would have sent that client the | |
67 | dhcp6.unicast option. This behavior is in compliance with paragraph 1 in | |
68 | each of the sections 18.2,1, 18.2.3, 18.2.6, and 18.2.7 of RFC 3315. Prior | |
69 | to this, the server would simply accept the messages. Now, in order for | |
70 | the server to accept such a message, the server configuration must include | |
71 | the dhcp6.unicast option either globally or within the shared network to | |
72 | which the requested lease belongs. In other words, the server will map | |
73 | the first IA_XX address found within the client message to a shared-network | |
74 | and look for the presence of the unicast option there and then globally. | |
ba21bb1b TM |
75 | Thanks to Jiri Popelka at Red Hat for this issue and his patch which |
76 | inspired the fix. | |
b31fe1d5 | 77 | [ISC-Bugs #21235] |
c2419dca | 78 | |
20c0fdc7 SR |
79 | - The ATF (Automated Testing Framework) tools used for optional unit tests |
80 | can now be built from its embedded sources in bind, solving the | |
81 | atf-run / atf-report issue with recent (>= 0.20) versions of ATF. | |
82 | The new configuration option is "./configure --with-atf=bind". | |
1b245c91 | 83 | [ISC-Bugs #38754, #39300] |
20c0fdc7 | 84 | |
1c0b7d66 SR |
85 | - Corrected a compilation error introduced by the fix for ISC-Bugs #22806. |
86 | On older linuxes that do not include the tpacket_auxdata structure don't | |
87 | bother allocating the cmsgbuf as it isn't necessary and we don't have | |
88 | a proper length for it. | |
89 | [ISC-Bugs #39209] | |
90 | ||
da88d34b SR |
91 | - Remove the dst directory. This was replaced in 4.2.0 with the dst |
92 | code from the Bind libraries but we continued to include it for | |
93 | backwards compatibility. As we have now released 4.3.x it seems | |
94 | reasonable to remove it. | |
95 | [ISC-Buts #39019] | |
96 | ||
90a062fb SR |
97 | - Write out the DUID server id on startup in all cases, previously if it |
98 | was read in from server-duid option in the config or lease files for | |
99 | DHCPv4 it would not be written to the new lease file. | |
100 | [ISC-Bugs #37791] | |
101 | ||
90fdd337 SR |
102 | - When parsing dates for leases convert dates past 2038 to "never". |
103 | This avoids problems with integer overflows in the date and time | |
104 | handling code for people that decide to use very large lease times | |
105 | or add a lease entry with a date far in the future. | |
106 | [ISC-Bugs #33056] | |
107 | ||
70689a73 SR |
108 | - Leave the siaddr field clear when sending a NACK as per RFC 2131 |
109 | table 3. | |
110 | [ISC-Bugs #38769] | |
111 | ||
30dcfbf6 SR |
112 | - In the client don't send expired addresses to the script as part of |
113 | the binding process. Thanks to Sven Trenkel at Google for reporting | |
114 | the issue and suggesting the patch. | |
115 | [ISC-Bugs #38631] | |
116 | ||
4136513e SR |
117 | - While parsing IPv6 addresses treat "add" as part of the address instead |
118 | of as a token. | |
119 | [ISC-Bugs #39529] | |
120 | ||
3933e2aa SR |
121 | - Add support for accessing the v4 lease queues (active, free etc) in a |
122 | binary fashion instead of needing to walk through a linear list to | |
123 | insert, find or remove an entry from the queues. In addition add a | |
124 | compile time option "--enable-binary-leases" to enable the new code | |
125 | or to continue using the old code. The old code is the default. | |
126 | Thanks to Fernando Soto from BlueCat Networks for the patch. | |
127 | [ISC-Bugs #39078] | |
128 | ||
cca6a648 | 129 | - Delayed-ack now works properly with Failover. Prior to this, bind updates |
130 | post startup were being queued but never delivered. Among other things, this | |
131 | was causing leases to not transition from expired or released to free. | |
132 | [ISC-Bugs #31474] | |
133 | ||
46d31b51 SR |
134 | - Clean up parsing of v6 lease files a bit to avoid infinite loops if the |
135 | lease file is corrupt in certain ways. | |
136 | [ISC-Bugs #39760] | |
137 | ||
cca6a648 | 138 | - Corrected a crash in dhclient that occurs during lease renewal if the |
68b3e7f2 TM |
139 | client is performing its own DNS updates. Thanks to Jiri Popelka at Red Hat |
140 | for the bug report. | |
cca6a648 | 141 | [ISC-Bugs #38639] |
142 | ||
b31fe1d5 | 143 | Changes since 4.3.2rc2 |
c2419dca SR |
144 | - None |
145 | ||
146 | Changes since 4.3.2rc1 | |
75d02fcf TM |
147 | |
148 | - Corrected a compilation error introduced by the fix for ISC-Bugs #37415. | |
149 | The error occurs on Linux variants that do not support VLAN tag information | |
150 | in packet auxiliary data. The configure script now only enables inclusion | |
151 | of the VLAN tag-based logic if it is supported by the underlying OS. | |
152 | [ISC-Bugs #38677] | |
153 | ||
45adf35c | 154 | Changes since 4.3.2b1 |
4d9b81fc | 155 | |
45adf35c | 156 | - Specifying the option, --disable-debug, on the configure script command line |
4e1bf548 | 157 | now disables debug features. Prior to this, specifying --disable-debug |
112d76f6 TM |
158 | incorrectly enabled debug features. Thanks to Gustavo Zacarias for reporting |
159 | the issue. | |
4e1bf548 | 160 | [ISC-Bugs #37780] |
4d9b81fc | 161 | |
9a111ee8 TM |
162 | - Unit test execution now uses a path augmented during configuration |
163 | processing of the --with-atf option to locate ATF runtime tools, atf-run | |
164 | and atf-report. For most installations of ATF, this should alleviate the | |
165 | need to manually include them in the PATH, as was formerly required. | |
166 | If the configure script cannot locate the tools it will emit a warning, | |
167 | informing the user that the tools must be in the PATH when running unit | |
168 | tests. | |
169 | Secondly, please note that "make check" will now exit with a failure status | |
170 | code (non-zero) if one or more unit tests fail. This means that invoking | |
171 | "make check" from an upper level directory will cause the make process to | |
172 | STOP after the first test subdirectory with failed test(s). To force all | |
173 | tests in all subdirectories to run, regardless of individual test outcome, | |
174 | use the command "make -k check". | |
175 | [ISC-Bugs #38619] | |
176 | ||
36e2c224 | 177 | Changes since 4.3.1 |
906ec9a7 | 178 | |
71d7e9aa TM |
179 | - Corrected parser's right brace matching when a statement contains an error. |
180 | [ISC-Bugs #36021] | |
181 | ||
3ffc07de | 182 | - TSIG-authenticated dynamic DNS updates now support the use of these |
267a248d TM |
183 | additional algorithms: hmac-sha1, hmac-sha224, hmac-sha256, hmac-sha384, |
184 | and hmac-sha512 | |
3ffc07de TM |
185 | [ISC-Bugs #36947] |
186 | ||
fa54ba10 | 187 | - Added check for invalid failover message type. Thanks to Tobias Stoeckmann |
45adf35c | 188 | working with the OpenBSD project who spotted the issue and provided the |
fa54ba10 | 189 | patch. |
e1b18c69 TM |
190 | [ISC-Bugs #36653] |
191 | ||
fa54ba10 | 192 | - Corrected rate limiting checks for bad packet logging. Thanks to Tobias |
45adf35c | 193 | Stoeckmann working with the OpenBSD project who spotted the issue and |
fa54ba10 | 194 | provided the patch. |
0ce1aa94 TM |
195 | [ISC-Bugs #36897] |
196 | ||
3956569b TM |
197 | - Log statements depicting what files will be used by the server now occur |
198 | after the configuration file has been processed. | |
199 | [ISC-Bugs #36671] | |
200 | ||
36e2c224 | 201 | - Addressed Coverity issues reported as of 07-31-2014: |
6444928c | 202 | [ISC-Bugs #36712] Corrects Coverity reported "high" impact issues. |
c7c11ea1 | 203 | [ISC-Bugs #36933] Corrects Coverity reported "medium" impact issues |
6444928c TM |
204 | [ISC-Bugs #37708] Fixes compilation error in dst_api.c seen in older |
205 | compilers that was introduced by #36712 | |
906ec9a7 | 206 | |
2a537542 TM |
207 | - Server now supports a failover split value of 256. |
208 | [ISC-Bugs] #36664] | |
209 | ||
1dceab6c SR |
210 | - Remove unneeded error #defines. These defines were included in case |
211 | external programs required the older versions of the macro. They | |
212 | have been #ifdeffed for now and will be removed at a future date. | |
213 | See site.h for the #define to include them again, but you should | |
214 | switch to using the DHCP_R_* versions instead of the ISC_R_* versions. | |
adb95d23 | 215 | Also ISC_R_MULTIPLE has been removed as it is also defined in bind. |
1dceab6c SR |
216 | [ISC-Bugs #37128] |
217 | ||
bd49432f | 218 | - Added checks in range6 and prefix6 statement parsing to ensure addresses |
b3b69c1c TM |
219 | are within the declared subnet. Thanks to Jiri Popelka at Red Hat for the |
220 | bug report and patch. | |
bd49432f | 221 | [ISC-Bugs #32453] |
7ff6ae5a TM |
222 | [ISC-Bugs #17766] |
223 | [ISC-Bugs #18510] | |
224 | [ISC-Bugs #23698] | |
225 | [ISC-Bugs #28883] | |
226 | ||
227 | - Addressed checksum issues: | |
228 | Added checksum readiness check to Linux packet filtering which eliminates | |
229 | invalid packet drops due to checksum errors when checksum offloading is | |
230 | in use. Based on dhcp-4.2.2-xen-checksum.patch made to the Fedora project. | |
231 | [ISC-Bugs #22806] | |
232 | [ISC-Bugs #15902] | |
233 | [ISC-Bugs #17739] | |
234 | [ISC-Bugs #18010] | |
235 | [ISC-Bugs #22556] | |
236 | [ISC-Bugs #29769] | |
45adf35c | 237 | Inbound packets with UDP checksums of 0xffff now validate correctly rather |
7ff6ae5a | 238 | than being dropped. |
e046c826 TM |
239 | [ISC-Bugs #24216] |
240 | [ISC-Bugs #25587] | |
241 | ||
242 | - Added the echo-client-id configuration parameter to the server configuration. | |
243 | The server now supports RFC 6842 compliant behavior by setting a new | |
244 | configuration parameter, echo-client-id. When enabled, the server will | |
245 | include the client identifier option (Option code 61) if received, in its | |
246 | responses. The server identifier returned in NAKs (if enabled) will now | |
247 | be the globally defined value (if one) if the server cannot attribute the | |
248 | inbound request to a known subnet. | |
f542e92b SR |
249 | [ISC-Bugs #35958] |
250 | [ISC-Bugs #32545] | |
bd49432f | 251 | |
0a7e1a8a TM |
252 | - Added support of the configuration parameter, use-host-decl-names, to |
253 | BOOTP request handling. | |
254 | [ISC-Bugs #36233] | |
255 | ||
6067cd48 TM |
256 | - Added logic to ignore the signal, SIGPIPE, which ensures write failures |
257 | will be delivered as errors rather than as SIGPIPE signals on all OSs. | |
258 | Thanks to Marius Tomaschewski from SUSE who reported the issue and provided | |
259 | the patch upon which the fix is based. | |
260 | [ISC-Bugs #32222] | |
261 | ||
21d30347 SR |
262 | - In the failover code, handle the case of communications being interrupted |
263 | when the servers are dealing with POTENTIAL-CONFLICT. This patch allows | |
264 | the primary to accept the secondary moving from POTENTIAL-CONFLICT to | |
265 | RESOLUTION-INTERRUPTED as well as handling the bind update process better. | |
266 | In addition the code to resend update or update all requests has been | |
267 | modified to send requests more often. | |
268 | [ISC-Bugs #36810] | |
269 | [ISC-Bugs #20352] | |
270 | ||
d9b2a590 TM |
271 | - By default, the server will now choose the value to use in the forward DNS |
272 | name from the following in order of preference: | |
273 | ||
274 | 1. FQDN option if provided by the client | |
275 | 2. Host name option if provided by the client | |
276 | 3. Configured option host-name if defined | |
277 | ||
278 | As before, this may be overridden by defining ddns-hostname to the desired | |
279 | value (or expression). In addition, the server logic has been extended to | |
280 | use the value of the host name declaration if use-host-decl-names is enabled | |
281 | and no other value is available. | |
282 | [ISC-Bugs #21323] | |
283 | ||
f3a44c10 TM |
284 | - DNS updates were being attempted when dhcp-cache-threshold enabled the use of |
285 | the existing lease and the forward DNS name had not changed. This has been | |
286 | corrected. | |
287 | [ISC-Bugs #37368] | |
59990751 | 288 | [ISC-Bugs #38686] |
f3a44c10 | 289 | |
04daf4fe | 290 | - Corrected an issue which caused dhclient to incorrectly form the result when |
45adf35c | 291 | prepending or appending to the IPv4 domain-search option, received from the |
04daf4fe TM |
292 | server, when either of the values being combined contain compressed |
293 | components. | |
294 | [ISC-Bugs #20558] | |
295 | ||
7116a34f TM |
296 | - Added the server-id-check parameter to the server configuration. |
297 | This parameter allows run-time control over whether or not a server, | |
298 | participating in failover, verifies the dhcp-server-identifier option in | |
ebb1d91e | 299 | DHCP REQUESTs against the server's id before processing the request. |
7116a34f TM |
300 | Formerly, enabling this behavior was done at compilation time through |
301 | the use of the #define, SERVER_ID_CHECK, which has been removed from site.h | |
adb95d23 | 302 | The functionality is now only available through the new runtime parameter. |
7116a34f TM |
303 | [ISC-Bugs #37551] |
304 | ||
2775bd62 TM |
305 | - During startup, when the server encounters a lease whose binding state is |
306 | FTS_BACKUP but whose pool has no configured failover peer, it will reset the | |
307 | lease's binding state to FTS_FREE. This allows the leases to be reclaimed | |
308 | by the server after a pool's configuration has changed from failover to | |
309 | standalone. Prior to this such leases would remain stuck in the backup state | |
310 | making them unavailable for assignment. Note this conversion will occur | |
311 | whether or not the server is compiled for failover. | |
312 | [ISC-Bugs #36960] | |
313 | ||
dd9738aa SR |
314 | - Fixed a small issue in the treatment of hosts in the inform processing |
315 | that could cause the response to an inform to include information from | |
316 | the wrong scope. The two examples we've heard of are getting subnet | |
317 | instead of group information associated with a host entry, or getting | |
318 | global information instead of subnet if the host entry was built via | |
433927d3 SR |
319 | omapi. Thanks to Julien Soula at University of Lille for finding the |
320 | bug and supplying a patch. | |
dd9738aa SR |
321 | [ISC-Bugs #35712] |
322 | ||
491bf4a2 SR |
323 | - Avoid calling pool_timer() recursively from supersede_lease(). This could |
324 | result in leases changing state incorrectly or delaying the running of the | |
325 | leae expiration code. | |
326 | [ISC-Bugs #38002] | |
327 | ||
992dc765 SR |
328 | - Move the check for a PID file and process to be before we rewrite the |
329 | lease file. This avoids the possibility of starting a second instance | |
330 | of a server which changes the current lease file confusing the first | |
331 | instance. This check is only included if the admin hasn't disabled PID | |
332 | files. | |
333 | [ISC-Bugs #38078] | |
001b9d53 | 334 | [ISC-Bugs #38143] |
992dc765 | 335 | |
cb8c997e SR |
336 | - In the client code change the way preferred_life and max_life are printed |
337 | for environment variables to be unsigned rather than signed. | |
338 | Thanks to Jiri Popelka at Red Hat for the bug report and patch. | |
339 | [ISC-Bugs #37084] | |
340 | ||
acbecb2e TM |
341 | - Modified linux packet handling such that packets received via VLAN are now |
342 | seen only by the VLAN interface. Prior to this, such packets were seen by | |
343 | both the VLAN interface and its parent (physical) interface, causing the | |
344 | server to respond to both. Note this remains an issue for non-Linux OSs. | |
345 | Thanks to Jiri Popelka at Red Hat for the patch. | |
346 | [ISC-Bugs #37415] | |
347 | [ISC-Bugs #37133] | |
348 | [ISC-Bugs #36668] | |
349 | [ISC-Bugs #36652] | |
350 | ||
fb98e02e TM |
351 | - Log content has been changed to more directly suggest that admins should |
352 | check for multiple IPv6 clients attempting to use the same DUID when only | |
353 | abandoned addresses are available. Debug level logging will now emit counts | |
354 | of the total number of, in-use, and abandoned addresses in a shared subnet | |
355 | when the server finds no addresses available for a given DUID. Lastly, | |
356 | threshold logging is now automatically disabled for shared subnets whose | |
357 | total number of possible addresses exceeds (2^64)-1. | |
358 | [ISC-Bugs #26376] | |
359 | [ISC-Bugs #38131] | |
360 | ||
1a006ff6 TM |
361 | - Added a global parameter, prefix-length-mode, which may be used to determine |
362 | how the server uses a non-zero value for prefix-length supplied by clients | |
363 | when soliciting DHCPv6 prefixes. The server supports selection modes of: | |
364 | ignore, prefer, exact, minimum and maximum which are described in detail in | |
365 | the server man pages. The prior behavior of the server was to only offer a | |
366 | prefix whose length exactly matched the prefix-length value requested. If | |
367 | no such prefixes were available, the server returned a status of none | |
368 | available. Note the default mode, "exact", provides this same behavior. | |
369 | [ISC-Bugs #36780] | |
f48dfdf1 | 370 | [ISC-Bugs #32228] |
1a006ff6 | 371 | |
45adf35c TM |
372 | - Corrected inconsistencies in dhcrelay's setting the upper interface hop count |
373 | limit such that it now sets it to 32 when the upstream address is a multicast | |
374 | address per RFC 3315 Section 20. Prior to this if the -u argument preceded | |
375 | the -l argument on the command line or if the same interface was specified | |
376 | for both; the logic to set the hop limit count for the upper interface was | |
377 | skipped. This caused the hop count limit to be set to the default value | |
378 | (typically 1) in the outbound upstream packets. | |
379 | [ISC-Bugs #37426] | |
380 | ||
381 | ||
7d9dd306 TM |
382 | Changes since 4.3.1b1 |
383 | ||
384 | - Modify the linux and openwrt dhclient scripts to process information | |
385 | from a stateless request. Thanks to Jiri Popelka at Red Hat for the | |
386 | bug report and patch. | |
f542e92b | 387 | [ISC-Bugs #36102] |
7d9dd306 | 388 | |
29c6b4f1 SR |
389 | - Remove more unused RCSID tags. These weren't noticed in 4.3 as |
390 | the code isn't used anymore but we remove them here to keep the | |
391 | code consistent across versions. | |
392 | [ISC-Bugs #36451] | |
393 | ||
57187138 | 394 | Changes since 4.3.0 |
01a44a77 | 395 | |
5ade3c84 | 396 | - Tidy up several small tickets. |
38c4774a SR |
397 | Correct parsing of DUID from config file, previously the LL type |
398 | was put in the wrong place in the DUID string. | |
9a111ee8 | 399 | [ISC-Bugs #20962] |
38c4774a SR |
400 | Add code to parse "do-forward-updates" as well as "do-forward-update" |
401 | Thanks to Jiri Popelka at Red Hat. | |
402 | [ISC-Bugs #31328] | |
403 | Remove log_priority as it isn't currently used. | |
404 | [ISC-Bugs #33397] | |
405 | Increase the size of the buffer used for reading interface information. | |
406 | [ISC-Bugs #34858] | |
01a44a77 | 407 | |
fc48033a SR |
408 | - Remove an extra set of the msg_controllen variable. |
409 | [ISC-Bugs #21035] | |
410 | ||
db3f7799 SR |
411 | - Add a more understandable error message if a configuration attempts |
412 | to add multiple keys for a single zone. Thanks to a patch from Jiri | |
413 | Popelka at Red Hat. | |
414 | [ISC-Bugs #31892] | |
415 | ||
0da37b4c SR |
416 | - Fix some minor issues in the dst code. |
417 | [ISC-Bugs #34172] | |
418 | ||
5ade3c84 | 419 | - Properly #ifdef functions so that the code can compile without NSUPDATE. |
158a34fb SR |
420 | [ISC-Bugs #35058] |
421 | ||
dceef873 SR |
422 | - Update the partner's stos (start time of state, basically when we last |
423 | heard from this partner) field when updating the state in failover. | |
424 | [ISC-Bugs #35549] | |
425 | ||
5ade3c84 | 426 | - Modify the overload processing to allow space for the remote agent ID. |
1be2ba15 SR |
427 | [ISC-Bugs #35569] |
428 | Handle the ordering of the SUBNET_MASK option even if it is the last | |
429 | option in the list. | |
430 | [ISC-Bugs #24580] | |
431 | ||
388cba45 SR |
432 | - Remove the code that allows a server to follow RFC3315 instead of |
433 | the subsequent errata from August 2010 when determining which IAs | |
434 | to include if no addresses will be assigned. | |
2c4be1d7 | 435 | [ISC-Bugs #28938] |
388cba45 | 436 | |
2c4be1d7 SR |
437 | - Remove unused RCSID tags. |
438 | [ISC-Bugs #35846] | |
388cba45 | 439 | |
b6ab3f6c SR |
440 | - Correct the v6 client timing code. When doing the timing backoff |
441 | for MRT limit it to MRD. | |
5ade3c84 | 442 | Thanks to Jiri Popelka at Red Hat for the bug report and fix. |
b6ab3f6c SR |
443 | [ISC-Bugs #21238 |
444 | ||
f950de77 SR |
445 | - Add a log entry when killing a client and remove the PID files |
446 | when a server, relay or client are killed. | |
447 | [ISC-Bugs #16970] | |
448 | [ISC-Bugs #17258] | |
449 | ||
5ade3c84 SR |
450 | - Some minor cleanups in the client code. |
451 | In addition to checking for dhcpc check for bootpc in the services list. | |
02b0bdc3 SR |
452 | [ISC-Bugs #18933] |
453 | Correct the client code to only try to get a lease once when the | |
454 | given the "-1" argument. | |
5ade3c84 | 455 | Thanks to Jiri Popelka at Red Hat for the bug report and fix. |
02b0bdc3 SR |
456 | [ISC-Bugs #26735] |
457 | When asked for the version don't send the output to syslog. | |
458 | [ISC-Bugs #29772] | |
459 | Add the next server information to the environment variables for | |
460 | use by the client script. In order to avoid changing the client | |
461 | lease file the next server information isn't written to it. | |
462 | Thanks to Tomas Hozza at Red Hat for the suggestion and a prototype fix. | |
463 | [ISC-Bugs #33098] | |
464 | ||
5ade3c84 | 465 | - Several updates to the dhcp server code. |
d8c7c34e SR |
466 | When not in quiet mode print out the files being used. |
467 | [ISC-Bugs #17551] | |
468 | As accessing some pid files may require privileges move the dropping | |
469 | of permission bits due to the paranoia patch to be after the pid code. | |
5ade3c84 | 470 | Thanks to Jiri Popelka at Red Hat for the bug report and fix. |
d8c7c34e SR |
471 | [ISC-Bugs #25806] |
472 | When processing a "--version" request don't output the version information | |
473 | to syslog. | |
474 | ||
5ade3c84 | 475 | - Add the "enable-log-pid" build option to the configure script. When enabled |
00e9af8e SR |
476 | this causes the client, server and relay programs to include the PID |
477 | number in syslog messages. | |
478 | Thanks to Marius Tomaschewski for the suggestion and proto-patch. | |
479 | [ISC-Bugs #29713] | |
480 | ||
9279a3d7 SR |
481 | - Add a #define to specify the prefix length used when a client attempts |
482 | to configure an address. This can be modified by editing includes/site.h. | |
483 | By default it is set to 64. While 128 might be a better choice it would | |
484 | also be a change for currently running systems, so we have left it at 64. | |
63c8800c | 485 | [ISC-Bugs #DHCP-2] |
9279a3d7 | 486 | |
79818c93 SR |
487 | - Add a run time option to the client "-df" to allow the administrator to |
488 | point to a second lease file the client can search for a DUID. This can | |
489 | be used to allow a v4 and a v6 instance of the client to share a DUID. | |
490 | The second file will only be searched if there isn't a DUID in the main | |
491 | lease file and the DUID will be written out to the main lease file. | |
492 | [ISC-Bugs #34886] | |
493 | ||
8a2e40cf SR |
494 | - Have the client fsync the lease file to avoid lease corruption if the |
495 | client hibernates or otherwise shuts down. | |
496 | [ISC-Bugs #35894] | |
497 | ||
59a351d6 SR |
498 | - Add a check for L2VLAN in bpf.c to help support VLAN interfaces |
499 | Thanks to Steinar Haug for the suggestion. | |
500 | [ISC-Bugs #36033] | |
501 | ||
0ab4a716 SR |
502 | - Modify the handling of the resolv.conf file to allow the DHCP |
503 | process to start up even if the resolv.conf file has problems. | |
504 | [ISC-Bugs #35989] | |
505 | ||
a89fd0cd | 506 | - Add threshold logging functionality. Two new options, |
250f7134 SR |
507 | log-threshold-low and log-threshold-high, indicate to the |
508 | server if and when it should log an error message as addresses | |
509 | in a pool are used. | |
510 | [ISC-Bugs #34487] | |
511 | ||
b05e05b7 SR |
512 | - Add code to properly dereference a pointer in the dhclient code |
513 | on an error condition. | |
e9326fd0 | 514 | [ISC-Bugs #36194] |
b05e05b7 | 515 | |
ad80055f SR |
516 | - Add code to help clean up soft leases. |
517 | [ISC-Bugs #36304] | |
518 | ||
e9326fd0 SR |
519 | - Disable the gentle shutdown functionality until we can determine |
520 | the best way to present it to remove or reduce the side effects. | |
521 | [ISC-Bugs #36066] | |
522 | ||
01a44a77 SR |
523 | Changes since 4.3.0rc1 |
524 | ||
525 | - None | |
526 | Changes since 4.3.0b1 | |
527 | ||
528 | - Tidy up receive packet processing. | |
529 | Thanks to Brad Plank of GTA for reporting the issue and suggesting | |
530 | a possible patch. | |
531 | [ISC-Bugs #34447] | |
532 | ||
533 | Changes since 4.3.0a1 | |
534 | ||
535 | - Modify the message displayed when a process hits a fatal error. | |
536 | The new message is much shorter and simply points to the README | |
537 | and our website for directions on bug submissions. | |
538 | [ISC-Bugs #24789] | |
539 | ||
540 | - Handle an absent resolv.conf file better. | |
541 | [ISC-Bugs #35194] | |
542 | ||
6980ae03 | 543 | Changes since 4.2.0 (new features) |
51b8a8a0 SR |
544 | |
545 | - If a client renews before 'dhcp-cache-threshold' percent of its lease | |
546 | has elapsed (default 25%), the server will reuse the allocated lease | |
547 | (provide a lease within the currently allocated lease-time) rather | |
548 | than extend or renew the lease. This absolves the server of needing | |
549 | to perform an fsync() operation on the lease database before reply, | |
550 | which improves performance. [ISC-Bugs #22228] | |
80778e94 | 551 | Updated this patch to support asynchronous DDNS. If the server is |
adb95d23 | 552 | attempting to do DDNS on a lease it should be updated and written to |
4809ef5c | 553 | disk even if that wouldn't be necessary due to the thresholding. |
8cd88e20 | 554 | [ISC-Bugs #26311] |
51b8a8a0 | 555 | |
6980ae03 SR |
556 | - The 'no available billing' log line now also logs the name of the last |
557 | matching billing class tried before failing to provide a billing. | |
558 | [ISC-Bugs #21759] | |
559 | ||
32e651c4 SR |
560 | - A problem with missing get_hw_addr function when --enable-use-sockets |
561 | was used is now solved on GNU/Linux, BSD and GNU/Hurd systems. Note | |
562 | that use-sockets feature was not tested on those systems. Client and | |
563 | server code no longer use MAX_PATH constant that is not defined on | |
3cb6f9bb | 564 | GNU/Hurd systems. [ISC-Bugs #25979] |
32e651c4 | 565 | |
67418698 SR |
566 | - Add a perl script in the contrib directory, dhcp-lease-list.pl, which |
567 | can parse v4 lease files and output the lease information in a more | |
568 | human friendly manner. This was written by Christian Hammers with | |
569 | some updates by vom and ISC. This is contributed code and is not | |
570 | supported by ISC; however it may be useful to some users. | |
571 | [ISC-Bugs #20680] | |
572 | ||
a7341359 | 573 | - Add support in v6 for on-commit, on-expire and on-release. |
4809ef5c | 574 | [ISC-Bugs #27912] |
a7341359 | 575 | |
01fa619f SR |
576 | - Add support for using classes with v6. |
577 | [ISC-Bugs #26510] | |
578 | ||
d7d9c0c7 SR |
579 | - Update the DDNS code to current standards and allow for sharing |
580 | of DDNS entries between v4 and v6 clients. The new code is used | |
581 | if the ddns-update-style is set to "standard", the older code is | |
582 | still available if ddns-update-style is set to "interim". The | |
583 | oldest DDNS code "ad-hoc" has been removed. Thanks to Thomas Pegeot | |
584 | who submitted a patch for this issue. This patch is based on | |
585 | that work with some modifications. | |
64fb661c | 586 | [ISC-Bugs #21139] |
1534fff7 | 587 | |
cde11a4c SR |
588 | - Add a configuration option to the server to suppress using fsync(). |
589 | Enabling this option will mean that fsync() is never called. This | |
590 | may provide better performance but there is also a risk that a lease | |
591 | will not be properly written to the disk after it has been issued | |
592 | to a client and before the server stops. Using this option is | |
593 | not recommended. | |
64fb661c | 594 | [ISC-Bugs #34810] |
cde11a4c | 595 | |
f88446f1 SR |
596 | - Add some logging statements to indicate when the server is ready |
597 | to serve. One statement is emitted after the server has finished | |
598 | reading its files and is about to enter the dispatch loop. | |
599 | This is "Server starting service.". | |
600 | The second is emitted when a server determines that both it and | |
601 | its failover peer are in the normal state. | |
602 | This is "failover peer <name>: Both servers normal." | |
64fb661c | 603 | [ISC-Bugs #33208] |
f88446f1 | 604 | |
619304cd SR |
605 | - Add support for accessing options from v6 relays. The v6relay |
606 | statement allows the administrator to choose which relay to | |
607 | use when searching for an option, see the dhcp-options man page | |
6b9c9f87 SR |
608 | for a description. The host-identifier option has also been |
609 | updated to support the use of relay options, see the dhcpd.conf | |
619304cd SR |
610 | man page for a description. |
611 | [ISC-Bugs #19598] | |
612 | ||
e54ff84f | 613 | - When doing DDNS if there isn't an appropriate zone statement attempt |
80778e94 | 614 | to find a reasonable nameserver via a DNS resolver. This restores |
e54ff84f SR |
615 | some functionality that was lost in the transition to asynchronous |
616 | DDNS. Due to the lack of security and increase in fragility of the | |
617 | system when using this feature we strongly recommend the use of | |
618 | appropriate zone statements rather than using this functionality. | |
619 | [ISC-Bugs #30461] | |
620 | ||
61ef216b SR |
621 | - Add support for specifying the address from which to send |
622 | DDNS updates on the DHCP server. There are two new options | |
623 | "ddns-local-address4" and "ddns-local-address6" that each take | |
624 | one instance of their respective address types. | |
625 | [ISC-Bugs #34779] | |
4d079f0e | 626 | |
38ee81bd SR |
627 | - Add ignore-client-uids option in the server. This option causes |
628 | the server to not record a client's uid in its lease. This | |
629 | violates the specification but may also be useful when a client | |
630 | can dual boot using different client ids but the same mac address. | |
6b9c9f87 | 631 | Thank you to Brian De Wolf at Cal Poly Pomona for the patch. |
38ee81bd SR |
632 | [ISC-Bugs #32427] |
633 | [ISC-Bugs #35066] | |
4d079f0e SR |
634 | |
635 | - Extend the DHCPINFORM processing to honor the subnet selection option | |
636 | and take host declarations into account. | |
637 | Thanks to Christof Chen for testing and submitting the patch. | |
638 | [ISC-Bugs #35015] | |
639 | ||
fe2ac9e3 SR |
640 | - Extend the hardware expression to look into the lease structure |
641 | for a hardware address if there is no packet. This allows the | |
642 | server to find the hardware address during on-expiry processing. | |
643 | [ISC-Bugs #24584] | |
61ef216b | 644 | |
bc30c84e SR |
645 | - Add definitions for some options that have been specified by the IETF. |
646 | [ISC-Bugs #29268] | |
ccc2a367 | 647 | [ISC-Bugs #35198] |
bc30c84e | 648 | |
01a44a77 | 649 | Changes since 4.2.0 (bug fixes) |
8ee352ee | 650 | |
01a44a77 SR |
651 | - When using 'ignore client-updates;', the FQDN returned to the client |
652 | is no longer truncated to one octet. | |
8ee352ee | 653 | |
01a44a77 | 654 | - Cleaned up an unused hardware address variable in nak_lease(). |
4889a646 | 655 | |
01a44a77 SR |
656 | - Manpage entries for the ia-pd and ia-prefix options were updated to |
657 | reflect support for prefix delegation. | |
4889a646 | 658 | |
01a44a77 | 659 | - Cleaned up some compiler warnings |
7dc4e69c | 660 | |
01a44a77 SR |
661 | - An optimization described in the failover protocol draft is now included, |
662 | which permits a DHCP server operating in communications-interrupted state | |
663 | to 'rewind' a lease to the state most recently transmitted to its peer, | |
664 | greatly increasing a server's endurance in communications-interrupted. | |
665 | This is supported using a new 'rewind state' record on the dhcpd.leases | |
666 | entry for each lease. | |
c5bc8b1a | 667 | |
01a44a77 | 668 | - Fix the trace code which was broken by the changes to the DDNS code. |
d0a10f6a | 669 | |
01a44a77 SR |
670 | - Update the fsync code to work with the changes to the DDNS code. It now |
671 | uses a timer instead of noticing if there are no more packets to process. | |
dc9d7b08 | 672 | |
01a44a77 SR |
673 | - When constructing the DNS name structure from a text string append |
674 | the root to relative names. This satisfies a requirement in the DNS | |
675 | library that names be absolute instead of relative and prevents DHCP | |
676 | from crashing. [ISC-Bugs #21054] | |
a24b9f23 | 677 | |
01a44a77 SR |
678 | - "The LDAP Patch" that has been circulating for some time, written by |
679 | Brian Masney and S.Kalyanasundraram and maintained for application to | |
680 | the DHCP-4 sources by David Cantrell has been included. Please be | |
681 | advised that these sources were contributed, and do not yet meet the | |
682 | high standards we place on production sources we include by default. | |
683 | As a result, the LDAP features are only included by using a compile-time | |
684 | option which defaults off, and if you enable it you do so under your | |
685 | own recognizance. We will be improving this software over time. | |
686 | [ISC-Bugs #17741] | |
c5bc8b1a | 687 | |
01a44a77 SR |
688 | - Prohibit including lease time information in a response to a DHCP INFORM. |
689 | [ISC-Bugs #21092] | |
cc17cbc3 | 690 | |
01a44a77 SR |
691 | ! Accept a client id of length 0 while hashing. Previously the server would |
692 | exit if it attempted to hash a zero length client id, providing attackers | |
693 | with a simple denial of service attack. [ISC-Bugs #21253] | |
694 | CERT: VU#541921 - CVE: CVE-2010-2156 | |
08b2d347 | 695 | |
01a44a77 | 696 | - A memory leak in ddns processing was closed. [ISC-Bugs #21377] |
08b2d347 | 697 | |
01a44a77 SR |
698 | - Modify the exception handling for initial context creation. Previously |
699 | we would try and clean up before exiting. This could present problems | |
700 | when the cleanup required part of the context that wasn't available. It | |
701 | also didn't do much as we exited afterwards anyway. Now we simply log | |
702 | the error and exit. [ISC-Bugs #21093] | |
ad4001ce | 703 | |
01a44a77 SR |
704 | - A bug was fixed that could cause the DHCPv6 server to advertise/assign a |
705 | previously allocated (active) lease to a client that has changed subnets, | |
706 | despite being on different shared networks. Dynamic prefixes specifically | |
707 | allocated in shared networks also now are not offered if the client has | |
708 | moved. [ISC-Bugs #21152] | |
3cb6f9bb | 709 | |
01a44a77 | 710 | - Add some debugging output for use with the DDNS code. [ISC-Bugs #20916] |
f6dc164f | 711 | |
01a44a77 SR |
712 | - Fix the trace code to handle timing events better and to truncate a file |
713 | before using instead of overwriting it. [ISC-Bugs #20969] | |
4b8251a0 | 714 | |
01a44a77 SR |
715 | - Modify the determination of the default TTL to use for DDNS updates. |
716 | The user may still configure the ttl via ddns-ttl. The default for | |
717 | both v4 and v6 is now 1/2 the (preferred) lease time with a limit. The | |
718 | previous defaults (1/2 lease time without a limit for v4 and a default | |
719 | value for v6) may be used by defining USE_OLD_DDNS_TTL in site.h | |
720 | [ISC-Bugs #21126] | |
47e8308d | 721 | |
01a44a77 SR |
722 | - libisc/libdns is now brought up to version 9.7.1rc1. This corrects |
723 | three reported flaws in ISC DHCP; | |
d9b5c150 | 724 | |
01a44a77 SR |
725 | o DHCP processes (dhcpd, dhclient) fail to start if one of either the |
726 | IPv4 or IPv6 address families is not present. [ISC-Bugs #21122] | |
08e6dad9 | 727 | |
01a44a77 SR |
728 | o Assertion failure when attempting to cancel a previously running DDNS |
729 | update. [ISC-Bugs #21133] | |
9f9265b6 | 730 | |
01a44a77 SR |
731 | o Compilation failure of libisc/libdns due to the use of a flexible |
732 | array member. [ISC-Bugs #21316] | |
9f9265b6 | 733 | |
01a44a77 | 734 | - Add declaration for variable in debug code in alloc.c. [ISC-Bugs #21472] |
35de6c8c | 735 | |
01a44a77 SR |
736 | - Documentation cleanup covering multiple tickets |
737 | [ISC-Bugs #20265] [ISC-Bugs #20259] minor cleanup | |
738 | [ISC-Bugs #20263] add text describing some default values | |
739 | [ISC-Bugs #20193] single quotes at the start of a line indicate a control | |
740 | line to nroff, escape them if we actually want a quote. | |
741 | [ISC-Bugs #18916] sync the pointer to web pages amongst the different docs | |
de87ffe3 | 742 | |
01a44a77 SR |
743 | - 'get-host-names true;' now also works even if 'use-host-decl-names true;' |
744 | was also configured. The nature of this repair also fixes another | |
745 | error; the host-name supplied by a client is no longer overridden by a | |
746 | reverse lookup of the lease address. Thanks to a patch from Wilco Baan | |
747 | Hofman supplied to us by the Debian package maintenance team. | |
748 | [ISC-Bugs #21691] {Debian Bug#509445} | |
e563ec2e | 749 | |
01a44a77 SR |
750 | - The .TH tag for the dhcp-options manpage was typo repaired |
751 | thanks to a report from jidanni and the Debian package maintenance | |
752 | team. [ISC-Bugs #21676] {Debian Bug#563613} | |
3bedb117 | 753 | |
01a44a77 SR |
754 | - More documentation changes - primarily to put the options in the dhclient |
755 | and dhcpd man pages into the standard form. Thanks in part to a patch | |
756 | from David Cantrell at Red Hat. | |
757 | [ISC-Bugs #20264] and parts of [ISC-Bugs #17744] dhclient.8 changes | |
18a28679 | 758 | |
01a44a77 SR |
759 | - Add code to clear the pointer to an object in an OMAPI handle when the |
760 | object is freed due to a dereference. [ISC-Bugs #21306] | |
0b2ec8c9 | 761 | |
01a44a77 SR |
762 | - Fixed a bug that leaks host record references onto lease structures, |
763 | causing the server to apply configuration intended for one host to any | |
764 | other innocent clients that come along later. [ISC-Bugs #22018] | |
67b2cb45 | 765 | |
01a44a77 SR |
766 | - Minor code fixes |
767 | [ISC-Bugs #19566] When trying to find the zone for a name for ddns allow | |
768 | the name to be at the apex of the zone. | |
769 | [ISC-Bugs #19617] Restrict length of interface name read from command line | |
770 | in dhcpd - based on a patch from David Cantrell at Red Hat. | |
771 | [ISC-Bugs #20039] Correct some error messages in dhcpd.c | |
772 | [ISC-Bugs #20070] Better range check on values when creating a DHCID. | |
9a111ee8 | 773 | [ISC-Bugs #20198] Avoid writing past the end of the field when adding |
01a44a77 SR |
774 | overly long file or server names to a packet and add a log message |
775 | if the configuration supplied overly long names for these fields. | |
776 | Thanks to Martin Pala. | |
777 | [ISC-Bugs #21497] Add a little more randomness to rng seed in client | |
778 | thanks to a patch from Jeremiah Jinno. | |
74977c94 | 779 | |
01a44a77 | 780 | - Correct error handling in DLPI [ISC-Bugs #20378] |
30e42327 | 781 | |
01a44a77 SR |
782 | - Remove __sun__ and __hpux__ typedefs in osdep.h as they are now being |
783 | checked in configure. [ISC-Bugs #20443] | |
dbd65517 | 784 | |
01a44a77 SR |
785 | - Modify how the cmsg header is allocated the v6 send and received routines |
786 | to compile on more compilers. [ISC-Bugs #20524] | |
0f750c4f | 787 | |
01a44a77 SR |
788 | - When parsing a domain name free the memory for the name after we are |
789 | done with it. [ISC-Bugs #20824] | |
b95f1ee0 | 790 | |
01a44a77 SR |
791 | - Add an elapsed time option to the release message and refactor the |
792 | code to move most of the common code to a single routine. | |
793 | [ISC-Bugs #21171]. | |
b95f1ee0 | 794 | |
01a44a77 SR |
795 | - Two identical log messages for commit_leases() have been disambiguated. |
796 | [ISC-Bugs #18915] | |
0ef9a46e | 797 | |
01a44a77 SR |
798 | - Parse date strings more properly - the code now handles semi-colons in |
799 | date strings correctly. Thanks to a patch from Jiri Popelka at Red Hat. | |
800 | [ISC-Bugs #21501, #20598] | |
de6c9af6 | 801 | |
01a44a77 SR |
802 | - Fixes to lease input and output. |
803 | [ISC-Bugs #20418] - Some systems don't support the "%s" argument to | |
804 | strftime, paste together the same string using mktime instead. | |
805 | [ISC-Bugs #19596] - When parsing iaid values accept printable | |
806 | characters. | |
807 | [ISC-Bugs #21585] - Always print time values in omshell as hex | |
808 | instead of ascii if the values happen to be printable characters. | |
87132514 | 809 | |
01a44a77 SR |
810 | - Minor changes for scripts, configure.ac and Makefiles |
811 | [ISC-Bugs #19147] Use domain-search instead of domain-name in manual and | |
812 | example conf file. Thanks to a patch from David Cantrell | |
813 | at Red Hat. | |
814 | [ISC-Bugs #19761] Restore address when doing a rebind in DHCPv6 | |
815 | [ISC-Bugs #19945] Properly close the quote on some arguments. | |
816 | [ISC-Bugs #20952] Add 64 bit types to configure.ac | |
adb95d23 | 817 | [ISC-Bugs #21308] Add "PATH=" to CLIENT_PATH environment variable |
b047bd38 | 818 | |
01a44a77 SR |
819 | - Update the code to parse dhcpv6 lease files to accept a semi-colon at |
820 | the end of the max-life and preferred-life clauses. In order to be | |
821 | backwards compatible with older lease files not finding a semi-colon | |
822 | is also accepted. [ISC-Bugs #22303]. | |
e3c94800 | 823 | |
01a44a77 SR |
824 | ! Handle a relay forward message with an unspecified address in the |
825 | link address field. Previously such a message would cause the | |
826 | server to crash. Thanks to a report from John Gibbons. [ISC-Bugs #21992] | |
827 | CERT: VU#102047 CVE: CVE-2010-3611 | |
dd9237c3 | 828 | |
01a44a77 SR |
829 | - ./configure on longer searches for -lcrypto to explicitly link against. |
830 | This fixes a bug where 'dhclient' would have shared library dependencies | |
831 | on '/usr/lib'. [ISC-Bugs #21967] | |
d13db163 | 832 | |
01a44a77 SR |
833 | - Handle pipe failures more gracefully. Some OSes pass a SIGPIPE |
834 | signal to a process and will kill the process if the signal isn't | |
835 | caught. This patch adds code to turn off the SIGPIPE signal via | |
836 | a setsockopt() call. The signal is already being ignored as part | |
837 | of the ISC library. [ISC-Bugs #22269] | |
b342f2e7 | 838 | |
01a44a77 SR |
839 | - Restore printing of values in omshell to the style pre 21585. For |
840 | 21585 we changed the print routines to always display time values | |
841 | as a hex list. This had a side effect of printing all data strings | |
842 | as a hex list. We shall investigate other ways of displaying time | |
843 | values more usefully. [ISC-Bugs #22626] | |
797aab67 | 844 | |
01a44a77 SR |
845 | ! Fix the handling of connection requests on the failover port. |
846 | Previously a connection request from a source that wasn't | |
847 | listed as a failover peer would cause the server to become | |
848 | non-responsive. Thanks to a report from Brad Bendily, brad@bendily.com. | |
849 | [ISC-Bugs #22679] | |
9a111ee8 | 850 | CERT: VU#159528 CVE: CVE-2010-3616 |
bc7f8b8e | 851 | |
01a44a77 SR |
852 | - Don't pass the ISC_R_INPROGRESS status to the omapi signal handlers. |
853 | Passing it through to the handlers caused the omshell program to fail | |
854 | to connect to the server. [ISC-Bugs #21839] | |
d289ee68 | 855 | |
adb95d23 | 856 | - Fix the parenthesis in the code to process configuration statements |
01a44a77 SR |
857 | beginning with "auth". The previous arrangement caused |
858 | "auto-partner-down" to be processed incorrectly. [ISC-Bugs #21854] | |
d19fa5a1 | 859 | |
01a44a77 SR |
860 | - Limit the timeout period allowed in the dispatch code to 2^^32-1 seconds. |
861 | Thanks to a report from Jiri Popelka at Red Hat. | |
862 | [ISC-Bugs #22033], [Red Hat Bug #628258] | |
bb9189c3 | 863 | |
01a44a77 SR |
864 | - When processing the format flags for a given option consume the |
865 | flag indicating an optional value correctly. A symptom of this | |
866 | bug was an infinite loop when trying to parse the slp-service-scope | |
867 | option. Thanks to a patch from Marius Tomaschewski. | |
868 | [ISC-Bugs #22055] | |
cbbd2714 | 869 | |
01a44a77 SR |
870 | - Disable the use of kqueue in the ISC library. This avoids a problem |
871 | between the fork and socket code that caused the dhcpd process to | |
872 | use all available cpu if the program daemonized itself. | |
873 | [ISC-Bugs #21911] | |
d208bb04 | 874 | |
01a44a77 SR |
875 | ! When processing a request in the DHCPv6 server code that specifies |
876 | an address that is tagged as abandoned (meaning we received a | |
877 | decline request for it previously) don't attempt to move it from | |
878 | the inactive to active pool as doing so can result in the server | |
879 | crashing on an assert failure. Also retag the lease as active | |
880 | and reset its timeout value. | |
881 | [ISC-Bugs #21921] | |
9a111ee8 | 882 | |
01a44a77 SR |
883 | - Removed the restriction on using IPv6 addresses in IPv4 mode. This |
884 | allows IPv4 options which contain IPv6 addresses to be specified. For | |
885 | example the 6rd option can be specified and used like this: | |
886 | [ISC-Bugs #23039] | |
d208bb04 | 887 | |
01a44a77 SR |
888 | option 6rd code 212 = { integer 8, integer 8, |
889 | ip6-address, array of ip-address }; | |
890 | option 6rd 16 10 2001:: 1.2.3.4, 5.6.7.8; | |
25f664a6 | 891 | |
01a44a77 SR |
892 | - Handle some DDNS corner cases better. Maintain the DDNS transaction |
893 | information when updating a lease and cancel any existing transactions | |
9a111ee8 | 894 | when removing the ddns information. |
01a44a77 | 895 | [ISC-Bugs #23103] |
d424157d | 896 | |
01a44a77 SR |
897 | - Some fixes for LDAP |
898 | [ISC-Bugs #21783] - Include lber library when building ldap | |
899 | [ISC-Bugs #22888] - Enable the ldap code when buidling common | |
900 | The above fixes are from Jiri Popelka at Red Hat. | |
3221151b | 901 | |
01a44a77 SR |
902 | - Modify the dlpi code to accept getmsg() returning a positive value. |
903 | [ISC-Bugs #22824] | |
bea17697 SR |
904 | |
905 | ! In dhclient check the data for some string options for | |
906 | reasonableness before passing it along to the script that | |
907 | interfaces with the OS. | |
908 | [ISC-Bugs #23722] | |
909 | CVE: CVE-2011-0997 | |
c7aa4dd4 TM |
910 | |
911 | - DHCPv6 server now responds properly if client asks for a prefix that | |
912 | is already assigned to a different client. [ISC-Bugs #23948] | |
4a5bfeac SR |
913 | |
914 | - Add the option "--no-pid" to the client, relay and server code, | |
915 | to disable writing a pid file. Add the option "-pf pidfile" | |
916 | to the relay to allow the user to supply the pidfile name at | |
917 | runtime. Add the "with-relay6-pid-file" option to configure | |
918 | to allow the user to supply the pidfile name for the relay | |
919 | in v6 mode at configure time. | |
920 | [ISC-Bugs #23351] [ISC-Bugs #17541] | |
5d082abd TM |
921 | |
922 | - 'dhclient' no longer waits a random interval after first starting up to | |
923 | begin in the INIT state. This conforms to RFC 2131, but elects not to | |
9a111ee8 | 924 | implement a 'SHOULD' direction in section 4.1. The goal of this change |
73c83820 | 925 | is to start up faster. [ISC-Bugs #19660] |
9a111ee8 TM |
926 | |
927 | - Added 'initial-delay' parameter that specifies maximum amount of time | |
928 | before client goes to the INIT state. The default value is 0. In previous | |
929 | versions of the code client could wait up to 5 seconds. The old behavior | |
5d082abd | 930 | may be restored by using 'initial-delay 5;' in the client config file. |
73c83820 | 931 | [ISC-Bugs #19660] |
5d082abd TM |
932 | |
933 | - ICMP ping-check should now sit closer to precisely the number of seconds | |
934 | configured (or default 1), due to making use of the new microsecond | |
935 | scale timer internally to dhcpd. This corrects a bug where the server | |
936 | may immediately timeout an ICMP ping-check if it was made late in the | |
73c83820 | 937 | current second. [ISC-Bugs #19660] |
5d082abd TM |
938 | |
939 | - The DHCP client will schedule renewal and rebinding events in | |
940 | microseconds if the DHCP server provided a lease-time that would result | |
941 | in sub-1-second timers. This corrects a bug where a 2-second or lower | |
942 | lease-time would cause the DHCP client to enter an infinite loop by | |
73c83820 | 943 | scheduling renewal at zero seconds. [ISC-Bugs #19660] |
5d082abd TM |
944 | |
945 | - Client lease records are recorded at most once every 15 seconds. This | |
946 | keeps the client from filling the lease database disk quickly on very small | |
73c83820 | 947 | lease times. [ISC-Bugs #19660] |
5d082abd TM |
948 | |
949 | - To defend against RFC 2131 non-compliant DHCP servers which fail to | |
950 | advertise a lease-time (either mangled, or zero in value) the DHCP | |
951 | client now adds the server to the reject list ACL and returns to INIT | |
952 | state to hopefully find an RFC 2131 compliant server (or retry in INIT | |
73c83820 | 953 | forever). [ISC-Bugs #19660] |
023fbaa0 TM |
954 | |
955 | - Parameters configured to evaluate from user defined function calls can | |
956 | now be correctly written to dhcpd.leases (as on 'on events' or dynamic | |
957 | host records inserted via OMAPI). [ISC-Bugs #22266] | |
958 | ||
959 | - If a 'next-server' parameter is configured in a dynamic host record via | |
960 | OMAPI as a domain name, the syntax written to disk is now correctly parsed | |
961 | upon restart. [ISC-Bugs #22266] | |
656b1ece TM |
962 | |
963 | - The DHCP server now responds to DHCPLEASEQUERY messages from agents using | |
964 | IP addresses not covered by a subnet in configuration. Whether or not to | |
965 | respond to such an agent is still governed by the 'allow leasequery;' | |
966 | configuration parameter, in the case of an agent not covered by a configured | |
967 | subnet the root configuration area is examined. Server now also returns | |
968 | vendor-class-id option, if client sent it. [ISC-Bugs #21094] | |
9a111ee8 | 969 | |
fc06ee4f SR |
970 | - Documentation fixes |
971 | [ISC-Bugs #17959] add text to AIX section describing how to have it send | |
972 | responses to the all-ones address. | |
973 | [ISC-Bugs #19615] update the includes in dhcpctl/dhcpctl.3 to be more correct | |
974 | [ISC-Bugs #20676] update dhcpd.conf.5 to include the RFC numbers for DDNS | |
975 | ||
1185c766 TM |
976 | - Relay no longer crashes, when DHCP packet is received over interface without |
977 | any IPv4 address assigned. Also extended logging message about discarding | |
978 | packets with invalid hlen with information about relevant interface name. | |
979 | [ISC-Bugs #22409] | |
980 | ||
c6455252 TM |
981 | - Relay now properly logs that packet was received over interface without |
982 | global IPv6 address [ISC-Bugs #24070] | |
983 | ||
9a111ee8 TM |
984 | - Linux Packet Filter interface improvement. sockaddr_pkt structure is used, |
985 | rather than sockaddr. Packet ethertype is now forced to ETH_P_IP. | |
9369bdc1 TM |
986 | [ISC-Bugs #18975] |
987 | ||
fb30f3fc SR |
988 | - Minor code cleanups - but note port change for #23196 |
989 | [ISC-Bugs #23470] - Modify when an ignore return macro is defined to | |
990 | handle unsed error return warnings for more versions of gcc. | |
991 | [ISC-Bugs #23196] - Modify the reply handling in the server code to | |
992 | send to a specified port rather than to the source port for the incoming | |
993 | message. Sending to the source port was test code that should have | |
994 | been removed. The previous functionality may be restored by defining | |
995 | REPLY_TO_SOURCE_PORT in the includes/site.h file. We suggest you don't | |
996 | enable this except for testing purposes. | |
997 | [ISC-Bugs #22695] - Close a file descriptor in an error path. | |
998 | [ISC-Bugs #19368] - Tidy up variable types in validate_port. | |
999 | ||
c616de4f | 1000 | - Code cleanup: remove obsolete PROTO, KandR, INLINE and ANSI_DECL macros |
9a111ee8 | 1001 | [ISC-Bugs #13151] |
c616de4f TM |
1002 | |
1003 | - Compilation problem with gcc4.5 and omshell.c resolved. [ISC-Bugs #23831] | |
a34feb7d | 1004 | |
4f55e11b SR |
1005 | - Client Script fixes |
1006 | [ISC-Bugs #23045] Typos in client/scripts/openbsd | |
1007 | [ISC-Bugs #23565] In the client scripts add a zone id (interface id) if | |
1008 | the domain search address is link local. | |
1009 | [ISC-Bugs #1277] In some of the client scripts add code to handle the | |
1010 | case of the default router information being changed without the address | |
1011 | being changed. | |
1012 | ||
802fdea1 TM |
1013 | - Documentation cleanup |
1014 | [ISC-Bugs #23326] Updated References document, several man page updates | |
1015 | ||
9a111ee8 | 1016 | - Server no longer complains about NULL pointer when configured |
1b601efa TM |
1017 | server-identifier expression fails to evaluate. [ISC-Bugs #24547] |
1018 | ||
199f0b8a SR |
1019 | - Convert ISC_R_INPROGRESS status to ISC_R_SUCCESS when called from other |
1020 | than the dispatch handler. This fixes an issue where omshell, when | |
1021 | run from the same platform as the server, would appear to fail to | |
1022 | connect. This is a companion to #21839. [ISC-Bugs #23592] | |
1023 | ||
786f2e79 SR |
1024 | - Enlarge the buffer size used by the Omshell code and some of the |
1025 | print routines to allow for greater than 60 characters or, when | |
1026 | printing as hex strings, 20 characters. [ISC-Bugs #22743] | |
1027 | ||
7cfeb916 SR |
1028 | - In Solaris 11 switch to using sockets instead of DLPI, thanks |
1029 | to a patch form Oracle. [ISC-Bugs #24634]. | |
1030 | ||
9a111ee8 TM |
1031 | - Strict checks for content of domain-name DHCPv4 option can now be |
1032 | configured during compilation time. Even though RFC2132 does not allow | |
1033 | to store more than one domain in domain-name option, such behavior is | |
d15aa964 TM |
1034 | now enabled by default, but this may change some time in the future. |
1035 | See ACCEPT_LIST_IN_DOMAIN_NAME define in includes/site.h. | |
1036 | [ISC-Bugs #24167] | |
1037 | ||
beaed73f SR |
1038 | - DNS Update fix. A misconfigured server could crash during DNS update |
1039 | processing if the configuration included overlapping pools or | |
1040 | multiple fixed-address entries for a single address. This issue | |
1041 | affected both IPv4 and IPv6. The fix allows a server to detect such | |
1042 | conditions, provides the user with extra information and recommended | |
1043 | steps to fix the problem. If the user enables the appropriate option | |
1044 | in site.h then server will be terminated | |
1045 | [ISC-Bugs #23595] | |
1046 | ||
8bd96ccb SR |
1047 | ! Two packets were found that cause a server to halt. The code |
1048 | has been updated to properly process or reject the packets as | |
1049 | appropriate. Thanks to David Zych at University of Illinois | |
1050 | for reporting this issue. [ISC-Bugs #24960] | |
1051 | One CVE number for each class of packet. | |
1052 | CVE-2011-2748 | |
1053 | CVE-2011-2749 | |
1054 | ||
01a44a77 SR |
1055 | - Fix the code that checks for an existing DDNS transaction to cancel |
1056 | when removing DDNS information, so that we will continue with the | |
1057 | processing if we have a lease even if it doesn't have an outstanding | |
1058 | transaction. [ISC-Bugs #24682] | |
5a38e43f | 1059 | |
01a44a77 SR |
1060 | - Add AM_MAINTAINER_MODE to configure.ac to avoid rebuilding |
1061 | configuration files. [ISC-Bugs #24107] | |
5a38e43f | 1062 | |
01a44a77 SR |
1063 | - Add support for passing DDNS information to a DNS server over |
1064 | an IPv6 address. [ISC-Bugs #22647] | |
524705e5 | 1065 | |
01a44a77 SR |
1066 | - Enhanced patch for 23595 to handle IPv4 fixed addresses more |
1067 | cleanly. [ISC-Bugs #23595] | |
66be0ad1 | 1068 | |
01a44a77 SR |
1069 | ! Add a check for a null pointer before calling the regexec function. |
1070 | Without this check we could, under some circumstances, pass | |
1071 | a null pointer to the regexec function causing it to segfault. | |
1072 | Thanks to a report from BlueCat Networks. | |
1073 | [ISC-Bugs #26704]. | |
1074 | CVE: CVE-2011-4539 | |
57fbc772 | 1075 | |
01a44a77 SR |
1076 | ! Modify the DDNS handling code. In a previous patch we added logging |
1077 | code to the DDNS handling. This code included a bug that caused it | |
1078 | to attempt to dereference a NULL pointer and eventually segfault. | |
1079 | While reviewing the code as we addressed this problem, we determined | |
1080 | that some of the updates to the lease structures would not work as | |
1081 | planned since the structures being updated were in the process of | |
1082 | being freed: these updates were removed. In addition we removed an | |
1083 | incorrect call to the DDNS removal function that could cause a failure | |
1084 | during the removal of DDNS information from the DNS server. | |
1085 | Thanks to Jasper Jongmans for reporting this issue. | |
1086 | [ISC-Bugs #27078] | |
1087 | CVE: CVE-2011-4868 | |
57fbc772 | 1088 | |
01a44a77 SR |
1089 | - Fixed the code that checks if an address the server is planning |
1090 | to hand out is in a reserved range. This would appear as | |
1091 | the server being out of addresses in pools with particular ranges. | |
1092 | [ISC-Bugs #26498] | |
57fbc772 | 1093 | |
01a44a77 SR |
1094 | - In the DDNS code handle error conditions more gracefully and add more |
1095 | logging code. The major change is to handle unexpected cancel events | |
1096 | from the DNS client code. | |
1097 | [ISC-Bugs #26287] | |
57fbc772 | 1098 | |
01a44a77 SR |
1099 | - Tidy up the receive calls and eliminate the need for found_pkt. |
1100 | [ISC-Bugs #25066] | |
9a111ee8 | 1101 | |
01a44a77 SR |
1102 | - Add support for Infiniband over sockets to the server and |
1103 | relay code. We've tested this on Solaris and hope to expand | |
1104 | support for Infiniband in the future. This patch also corrects | |
1105 | some issues we found in the socket code. | |
1106 | [ISC-Bugs #24245] | |
197c917e | 1107 | |
01a44a77 SR |
1108 | - Add a compile time check for the presence of the noreturn attribute |
1109 | and use it for log_fatal if it's available. This will help code | |
1110 | checking programs to eliminate false positives. | |
1111 | [ISC-Bugs #27539] | |
8bd445a1 | 1112 | |
01a44a77 SR |
1113 | - Fixed many compilation problems ("set, but not used" warnings) for |
1114 | gcc 4.6 that may affect Ubuntu 11.10 users. [ISC-Bugs #27588] | |
83d409ae | 1115 | |
01a44a77 SR |
1116 | - Modify the code that determines if an outstanding DDNS request |
1117 | should be cancelled. This patch results in cancelling the | |
1118 | outstanding request less often. It fixes the problem caused | |
1119 | by a client doing a release where the TXT and PTR records | |
1120 | weren't removed from the DNS. | |
1121 | [ISC-BUGS #27858] | |
6aaaf6a4 | 1122 | |
01a44a77 SR |
1123 | - Use offsetof() instead of sizeof() to get the sizes for dhcpv6_relay_packet |
1124 | and dhcpv6_packet in several more places. Thanks to a report from | |
1125 | Bruno Verstuyft and Vincent Demaertelaere of Excentis. | |
1126 | [ISC-Bugs #27941] | |
4e0997c6 | 1127 | |
01a44a77 SR |
1128 | - Remove outdated note in the description of the bootp keyword about the |
1129 | option not satisfying the requirement of failover peers for denying | |
1130 | dynamic bootp clients. | |
1131 | [ISC-bugs #28574] | |
ad59838e | 1132 | |
01a44a77 SR |
1133 | - Multiple items to clean up IPv6 address processing. |
1134 | When processing an IA that we've seen check to see if the | |
1135 | addresses are usable (not in use by somebody else) before | |
1136 | handing it out. | |
1137 | When reading in leases from the file discard expired addresses. | |
1138 | When picking an address for a client include the IA ID in | |
1139 | addition to the client ID to generally pick different addresses | |
1140 | for different IAs. | |
1141 | [ISC-Bugs #23138] [ISC-Bugs #27945] [ISC-Bugs #25586] | |
1142 | [ISC-Bugs #27684] | |
f33dc722 | 1143 | |
01a44a77 SR |
1144 | - Remove unnecessary checks in the lease query code and clean up |
1145 | several compiler issues (some dereferences of NULL and treating | |
1146 | an int as a boolean). | |
1147 | [ISC-Bugs #26203] | |
4dc5a6b1 | 1148 | |
01a44a77 SR |
1149 | - Fix the NA and PD allocation code to handle the case where a client |
1150 | provides a preference and the server doesn't have any addresses or | |
1151 | prefixes available. Previously the server ignored the request with | |
1152 | this patch it replies with a NoAddrsAvail or NoPrefixAvail response. | |
1153 | By default the code performs according to the errata of August 2010 | |
1154 | for RFC 3315 section 17.2.2; to enable the previous style see the | |
1155 | section on RFC3315_PRE_ERRATA_2010_08 in includes/site.h. This option | |
1156 | may be removed in the future. | |
1157 | Thanks to Jiri Popelka at Red Hat for the patch. | |
1158 | [ISC-Bugs #22676] | |
3004baba | 1159 | |
01a44a77 SR |
1160 | - Fix up some issues found by static analysis. |
1161 | A potential memory leak and NULL dereference in omapi. | |
1162 | The use of a boolean test instead of a bitwise test in dst. | |
1163 | [ISC-Bugs #28941] | |
3004baba | 1164 | |
01a44a77 SR |
1165 | - Rotate the lease file when running in v6 mode. |
1166 | Thanks to Christoph Moench-Tegeder at Astaro for the | |
1167 | report and the first version of the patch. | |
1168 | [ISC-Bugs #24887] | |
9d97e644 | 1169 | |
01a44a77 SR |
1170 | - Correct code to calculate timing values in client to compare |
1171 | rebind value to infinity instead of renew value. | |
1172 | Thanks to Chenda Huang from H3C Technologies Co., Limited | |
1173 | for reporting this issue. | |
1174 | [ISC-Bugs #29062] | |
23d39ae2 | 1175 | |
01a44a77 SR |
1176 | - Fix some issues in the code for parsing and printing options. |
1177 | [ISC-Bugs #22625] - properly print options that have several fields | |
1178 | followed by an array of something for example "fIa" | |
1179 | [ISC-Bugs #27289] - properly parse options in declarations that have | |
1180 | several fields followed by an array of something for example "fIa" | |
1181 | [ISC-Bugs #27296] - properly determine if we parsed a 16 or 32 bit | |
1182 | value in evaluate_numeric_expression (extract-int). | |
1183 | [ISC-Bugs #27314] - properly parse a zero length option from | |
1184 | a lease file. Thanks to Marius Tomaschewski from SUSE for the report | |
1185 | and prototype patch for this ticket as well as ticket 27289. | |
23d39ae2 | 1186 | |
01a44a77 SR |
1187 | ! Previously the server code was relaxed to allow packets with zero |
1188 | length client ids to be processed. Under some situations use of | |
1189 | zero length client ids can cause the server to go into an infinite | |
1190 | loop. As such ids are not valid according to RFC 2132 section 9.14 | |
1191 | the server no longer accepts them. Client ids with a length of 1 | |
1192 | are also invalid but the server still accepts them in order to | |
1193 | minimize disruption. The restriction will likely be tightened in | |
1194 | the future to disallow ids with a length of 1. | |
1195 | Thanks to Markus Hietava of Codenomicon CROSS project for the | |
9a111ee8 | 1196 | finding this issue and CERT-FI for vulnerability coordination. |
01a44a77 SR |
1197 | [ISC-Bugs #29851] |
1198 | CVE: CVE-2012-3571 | |
0c9d3a81 | 1199 | |
01a44a77 SR |
1200 | ! When attempting to convert a DUID from a client id option |
1201 | into a hardware address handle unexpected client ids properly. | |
1202 | Thanks to Markus Hietava of Codenomicon CROSS project for the | |
9a111ee8 | 1203 | finding this issue and CERT-FI for vulnerability coordination. |
01a44a77 SR |
1204 | [ISC-Bugs #29852] |
1205 | CVE: CVE-2012-3570 | |
e1a40211 | 1206 | |
01a44a77 SR |
1207 | ! A pair of memory leaks were found and fixed. Thanks to |
1208 | Glen Eustace of Massey University, New Zealand for finding | |
1209 | this issue. | |
1210 | [ISC-Bugs #30024] | |
1211 | CVE: CVE-2012-3954 | |
e7e17397 | 1212 | |
01a44a77 SR |
1213 | - Existing legacy unit-tests have been migrated to Automated Test |
1214 | Framework (ATF). Several new tests have been developed. To enable | |
1215 | unit-tests, please use --with-atf in configure script. A Developer's | |
1216 | Guide has been added. To generate it, please use make devel in | |
1217 | the doc directory. It is currently in early stages of development, | |
1218 | but is expected to grow in the near future. [ISC-Bugs 25901] | |
ef86959b | 1219 | |
01a44a77 SR |
1220 | ! An issue with the use of lease times was found and fixed. Making |
1221 | certain changes to the end time of an IPv6 lease could cause the | |
1222 | server to abort. Thanks to Glen Eustace of Massey University, | |
1223 | New Zealand for finding this issue. | |
1224 | [ISC-Bugs #30281] | |
1225 | CVE: CVE-2012-3955 | |
ef86959b | 1226 | |
01a44a77 SR |
1227 | - Update the memory leakage debug code to work with v6. |
1228 | [ISC-Bugs #30297] | |
919f1407 | 1229 | |
01a44a77 SR |
1230 | - Relax the requirements for deleting an A or AAAA record. |
1231 | Previously the DDNS removal code required both the A or AAAA | |
1232 | record and the TXT record to exist. This requirement could | |
1233 | cause problems if something interrupted the removal leaving | |
1234 | the TXT record alone. This relaxation was codified in RFC 4703. | |
1235 | [ISC-Bugs #30734] | |
8a0d9ca4 | 1236 | |
01a44a77 SR |
1237 | - Modify the failover code to handle incorrect peer names |
1238 | better. Previously the structure holding the name might | |
1239 | have been freed inappropriately in some cases and not | |
1240 | freed in other cases. | |
1241 | [ISC-Bugs #30320] | |
17a8f0e2 | 1242 | |
01a44a77 SR |
1243 | - Add a configure option, enable-secs-byteorder, to deal with |
1244 | clients that do the byte ordering on the secs field incorrectly. | |
1245 | This field should be in network byte order but some clients | |
1246 | get it wrong. When this option is enabled the server will examine | |
1247 | the secs field and if it looks wrong (high byte non zero and low | |
1248 | byte zero) swap the bytes. The default is disabled. This option | |
1249 | is only useful when doing load balancing within failover. | |
1250 | [ISC-Bugs #26108] | |
badc999d | 1251 | |
01a44a77 SR |
1252 | - Fix a set of issues that were discovered via a code inspection |
1253 | tool. Thanks to Jiri Popelka and Tomas Hozza Red Hat for the logs | |
1254 | and patches. | |
1255 | [ISC-Bugs #23833] | |
0d8c3d6e | 1256 | |
9a111ee8 | 1257 | - Parsing unquoted base64 strings improved. Parser now properly handles |
01a44a77 | 1258 | strings that contain reserved names. [ISC-Bugs #23048] |
1e05d095 | 1259 | |
01a44a77 SR |
1260 | - Modify the nak_lease function to make some attempts to find a |
1261 | server-identifier option to use for the NAK. | |
1262 | [ISC-Bugs #25689] | |
1e05d095 | 1263 | |
01a44a77 SR |
1264 | - The client now passes information about the options it requested |
1265 | from the server to the script code via environment variables. | |
1266 | These variables are of the form requested_<option_name>=1 with | |
1267 | the option name being the same as used in the new_* and old_* | |
1268 | variables. | |
1269 | [ISC-Bugs #29068] | |
1943bbf8 | 1270 | |
01a44a77 SR |
1271 | - Add support for a simple check that the server id in a request message |
1272 | to a failover peer matches the server id of the server. This support | |
1273 | is enabled by editing the file includes/site.h and uncommenting the | |
1274 | definition for SERVER_ID_CHECK. The option has several restrictions | |
1275 | and issues - please read the comment in the site.h file before | |
1276 | enabling it. | |
1277 | [ISC-Bugs #31463] | |
8a513c43 | 1278 | |
01a44a77 SR |
1279 | - Tidy up some compiler issues in the debug code. |
1280 | [ISC-Bugs #26460] | |
d122accf | 1281 | |
adb95d23 | 1282 | - Move the dhcpd.conf example file to dhcpd.conf.example to avoid |
01a44a77 SR |
1283 | overwriting the dhcpd.conf file when installing a new version of |
1284 | ISC DHCP. The user will now need to manual copy and edit the | |
1285 | dhcpd.conf file as desired. | |
1286 | [ISC-Bugs #19337] | |
0d8c3d6e | 1287 | |
01a44a77 SR |
1288 | - Check the status value when trying to read from a connection to |
1289 | see if it may have been closed. If it appears closed don't try | |
1290 | to read from it again. This avoids a potential busy-wait like | |
1291 | loop when the peer names are mismatched. | |
1292 | [ISC-Bugs #31231] | |
590298e7 | 1293 | |
01a44a77 SR |
1294 | - Remove an unused variable to keep compilers happy. |
1295 | [ISC-Bugs #31983] | |
2b58b865 | 1296 | |
01a44a77 SR |
1297 | - Modify test makefiles to be more similar to standard makefiles |
1298 | and comment out a currently unused test. | |
1299 | [ISC-Bugs #32089] | |
600ee619 | 1300 | |
01a44a77 SR |
1301 | - Address static analysis warnings. |
1302 | [ISC-Bugs #33510] [ISC-Bugs #33511] | |
a5c7bf77 | 1303 | |
01a44a77 SR |
1304 | - Silence benign static analysis warnings. |
1305 | [ISC-Bugs #33428] | |
a5c7bf77 | 1306 | |
01a44a77 SR |
1307 | - Add check for 64-bit package for atf. |
1308 | [ISC-Bugs #32206] | |
a5c7bf77 | 1309 | |
01a44a77 SR |
1310 | - Use newer auto* tool packages and turn on RFC_3542 support on Mac OS. |
1311 | [ISC-Bugs #26303] | |
a5c7bf77 | 1312 | |
01a44a77 SR |
1313 | - Remove a variable when it isn't being used due to #ifdefs to avoid |
1314 | a compiler warning on Solaris using GCC. | |
1315 | [ISC-Bugs #33032] | |
0585235c | 1316 | |
01a44a77 SR |
1317 | - Add a check for too much whitespace in a config or lease file. |
1318 | Thanks to Paolo Pellegrino for finding the issue and a suggestion | |
1319 | for the patch. | |
1320 | [ISC-Bugs #33351] | |
0585235c | 1321 | |
01a44a77 SR |
1322 | - Fix several problems with using OMAPI to manipulate class and subclass |
1323 | objects. | |
1324 | [ISC-Bugs #27452] | |
f4bc8261 | 1325 | |
01a44a77 SR |
1326 | - Added a sleep call after killing the old client to allow time |
1327 | for the sockets to be cleaned. This should allow the -r option | |
1328 | to work more consistently. | |
1329 | [ISC-Bugs #18175] | |
33692791 | 1330 | |
01a44a77 SR |
1331 | - Missing files for ISC DHCP Developer's Guide are now included in |
1332 | the release tarballs. To generate this documentation, please use | |
1333 | make devel command in doc directory. [ISC-Bugs #32767] | |
928618dd | 1334 | |
01a44a77 SR |
1335 | - Update client script for use with openwrt. |
1336 | [ISC-Bugs #29843] | |
928618dd | 1337 | |
01a44a77 SR |
1338 | - Fix the socket handling for DHCPv6 clients to allow multiple instances |
1339 | of a client on a single machine to work properly. Previously only | |
1340 | one client would receive the packets. Thanks to Jiri Popelka at Red Hat | |
1341 | for the bug report and a potential patch. | |
1342 | [ISC-Bugs #34784] | |
3c941d42 | 1343 | |
01a44a77 SR |
1344 | - Added support for gentle shutdown after signal is received. |
1345 | [ISC-Bugs #32692] [ISC-Bugs 34945] | |
bdd8e747 | 1346 | |
01a44a77 SR |
1347 | - Enhance the DHCPv6 server logging to include the addresses that are assigned |
1348 | to the clients. | |
1349 | [ISC-Bugs #26377] | |
3da71461 | 1350 | |
01a44a77 SR |
1351 | - Fix an operation in the DDNS code to be a bitwise instead of logical or. |
1352 | [ISC-Bugs #35138] | |
fdfebedf | 1353 | |
7aa153b8 | 1354 | |
adbef119 DH |
1355 | Changes since 4.1.0 (new features) |
1356 | ||
d340bc24 DH |
1357 | - Failover port configuration can now be left to defaults (port 647) as |
1358 | described in the -12 revision of the Failover draft (and assigned by | |
4b97eaff | 1359 | IANA). Thanks in part to a patch from David Cantrell at Red Hat. |
adbef119 | 1360 | |
0829d595 DH |
1361 | - If configured, dhclient may now transmit to an anycast MAC address, |
1362 | rather than using a broadcast address. Thanks to a patch from David | |
1363 | Cantrell at Red Hat. | |
1364 | ||
8a3c1e33 PS |
1365 | - Added client support for setting interface MTU and metric, thanks to |
1366 | Roy "UberLord" Marples <roy@marples.name>. | |
1367 | ||
a41d7a25 PS |
1368 | - Added client -D option to specify DUID type to send. |
1369 | ||
9e3eb22a DH |
1370 | - A new failover configuration parameter has been introduced for those |
1371 | environments where DHCP servers can be reasonably guaranteed to be | |
1372 | "down" when the failover TCP socket is severed, "auto-partner-down". | |
1373 | This parameter is not generally safe, and by default is disabled, so | |
1374 | please carefully review the documentation of this parameter in the | |
1375 | dhcpd.conf(5) manpage before determining to use it yourself. | |
1376 | ||
33ea4622 DH |
1377 | - Added a configuration function, 'gethostname()', which calls the system |
1378 | function of the same name and presents the results as a data expression. | |
1379 | This function can be used to incorporate the system level hostname of | |
1380 | the system the DHCP software is operating on in responses or queries (such | |
1381 | as including a failover partner's hostname in a dhcp message or binding | |
1382 | scope, or having a DHCP client send any system hostname in the host-name or | |
1383 | FQDN options by default). | |
1384 | ||
5a671e87 DH |
1385 | - The dhcp-renewal-time and dhcp-rebinding-time options may now be configured |
1386 | for DHCPv4 operation and used independently of the dhcp-lease-time | |
1387 | calculations. Invalid renew and rebinding times (e.g., greater than the | |
1388 | determined lease time) are omitted. | |
1389 | ||
adb95d23 | 1390 | - Processing the DHCP to DNS server transactions in an asynchronous fashion, |
45adf35c | 1391 | the DHCP server or client can now continue with its processing while |
98bf1607 | 1392 | awaiting replies from the DNS server. |
c900c5b2 DH |
1393 | |
1394 | - The 'hardware [ethernet|etc] ...;' parameter in host records has been | |
1395 | extended to attempt to match DHCPv6 clients by the last octets of a | |
1396 | DUID-LL or DUID-LLT provided by the client. | |
1397 | ||
59112e84 SR |
1398 | Changes since 4.1.0 (bug fixes) |
1399 | ||
62f6843d MA |
1400 | - Remove infinite loop in token_print_indent_concat(). |
1401 | ||
59112e84 SR |
1402 | - Validate the argument to the -p option. |
1403 | ||
47e6eb82 DH |
1404 | - The notorious 'option <unknown> ... larger than buffer' log line, |
1405 | which is seen in some malformed DHCP client packets, was modified. | |
1406 | It now logs the universe name, and does not log the length values | |
1407 | (which are bogus corruption read from the packet anyway). It also | |
1408 | carries a hopefully more useful explanation. | |
1409 | ||
159c89d7 EH |
1410 | - Suppress spurious warnings from configure about --datarootdir |
1411 | ||
1aa0fe5e DH |
1412 | - A bug was fixed that caused the server not to answer some valid Solicit |
1413 | and Request packets, if the dynamic range covering any requested addresses | |
1414 | had been deleted from configuration. | |
1415 | ||
cd51403d SR |
1416 | - Update the code to deal with GCC 4.3. This included two sets of changes. |
1417 | The first is to the configuration files to include the use of | |
571c38b0 | 1418 | AC_USE_SYSTEM_EXTENSIONS. The second is to deal with return values that |
cd51403d SR |
1419 | were being ignored. |
1420 | ||
64e1823d DH |
1421 | - The db-time-format option was documented in manpages. |
1422 | ||
26e59ee9 DH |
1423 | - Using reserved leases no longer results in 'lease with binding state |
1424 | free not on its queue' error messages, thanks to a patch from Frode | |
1425 | Nordahl. | |
1426 | ||
70ea9345 PS |
1427 | - Fix a build error in dhcrelay, using older versions of gcc with |
1428 | dhcpv6 disabled. | |
1429 | ||
8d7dca58 | 1430 | - Two uninitialized stack structures are now memset to zero, thanks to a |
4b97eaff | 1431 | patch from David Cantrell at Red Hat. |
819186b7 | 1432 | |
f4534b17 DH |
1433 | - Fixed a cosmetic bug where pretty-printing valid domain-search options would |
1434 | result in an erroneous error log message ('garbage in format string'). | |
1435 | ||
f9453d21 DH |
1436 | - A bug in DLPI packet transmission (Solaris, HP/UX) that caused the server |
1437 | to stop receiving packets is fixed. The same fix also means that the MAC | |
1438 | address will no longer appear 'bogus' on DLPI-based systems. | |
1439 | ||
1440 | - A bug in select handling was discovered where the results of one select() | |
1441 | call were discarded, causing the server to process the next select() call | |
1442 | and use more system calls than required. This has been repaired - the | |
1443 | sockets will be handled after the first return from select(), resulting in | |
1444 | fewer system calls. | |
1445 | ||
a3dcc0b1 DH |
1446 | - The update-conflict-detection feature would leave an FQDN updated without |
1447 | a DHCID (still currently implemented as a TXT RR). This would cause later | |
1448 | expiration or release events to fail to remove the domain name. The feature | |
1449 | now also inserts the client's up to date DHCID record, so records may safely | |
1450 | be removed at expiration or release time. Thanks to a patch submitted by | |
1451 | Christof Chen. | |
1452 | ||
95fd7038 DH |
1453 | - Memory leak in the load_balance_mine() function is fixed. This would |
1454 | leak ~20-30 octets per DHCPDISCOVER packet while failover was in use | |
1455 | and in normal state. | |
1456 | ||
1457 | - Various compilation fixes have been included for the memory related | |
1458 | DEBUG #defines in includes/site.h. | |
1459 | ||
8a3c1e33 PS |
1460 | - Fixed Linux client script 'unary operator expected' errors with DHCPv6. |
1461 | ||
1462 | - Fixed setting hostname in Linux hosts that require hostname argument | |
1463 | to be double-quoted. Also allow server-provided hostname to | |
1464 | override hostnames 'localhost' and '(none)'. | |
1465 | ||
dedde1ba DH |
1466 | - Fixed failover reconnection retry code to continue to retry to reconnect |
1467 | rather than restarting the listener. | |
1468 | ||
a57df74a DH |
1469 | - Compilation on Solaris with USE_SOCKETS defined in includes/site.h has |
1470 | been repaired. Other USE_ overrides should work better. | |
1471 | ||
1472 | - A check for the local flavor of IFNAMSIZ had a broken 'else' condition, | |
1473 | that probably still resulted in the correct behaviour (but wouldn't use | |
1474 | a larger defined value provided by the host OS). | |
1475 | ||
350576c5 DH |
1476 | - Fixed a bug where an OMAPI socket disconnection message would not result |
1477 | in scheduling a failover reconnection, if the link had not negotiated a | |
1478 | failover connect yet (e.g.: connection refused, asynch socket connect() | |
1479 | timeouts). | |
1480 | ||
792156a9 DH |
1481 | - A bug was fixed that caused the 'conflict-done' state to fail to be parsed |
1482 | in failover state records. | |
1483 | ||
8a4e543b DH |
1484 | ! A stack overflow vulnerability was fixed in dhclient that could allow |
1485 | remote attackers to execute arbitrary commands as root on the system, | |
1486 | or simply terminate the client, by providing an over-long subnet-mask | |
1b12d999 | 1487 | option. CERT VU#410676 - CVE-2009-0692 |
8a4e543b | 1488 | |
a1308b64 DH |
1489 | - Fixed a bug where relay agent options would never be returned when |
1490 | processing a DHCPINFORM. | |
1491 | ||
1b12d999 DH |
1492 | - Versions 3.0.x syntax with multiple name->code option definitions is now |
1493 | supported. Note that, similarly to 3.0.x, for by-code lookups only the | |
1494 | last option definition is used. | |
1495 | ||
d453265f PS |
1496 | - Fixed a bug where a time difference of greater than 60 seconds between a |
1497 | failover pair could cause the primary to crash on contact with the | |
1498 | secondary. Thanks to a patch from Steinar Haug. | |
1499 | ||
3e29af1e PS |
1500 | - Don't look for IPv6 interfaces on Linux when running in DHCPv4 mode. |
1501 | Thanks to patches from Matthew Newton and David Cantrell. | |
1502 | ||
b8d45c67 DH |
1503 | - Secondary servers in a failover pair will now perform ddns removals if |
1504 | they had performed ddns updates on a lease that is expiring, or was | |
1505 | released through the primary. As part of the same fix, stale binding scopes | |
1506 | will now be removed if a change in identity of a lease's active client is | |
1507 | detected, rather than simply if a lease is noticed to have expired (which it | |
1508 | may have expired without a failover server noticing in some situations). | |
1509 | ||
583c1c16 DH |
1510 | - A patch supplied by David Cantrell at RedHat was applied that detects |
1511 | invalid calling parameters given to the ns_name_ntop() function. | |
1512 | Specifically, it detects if the caller passed a pointer and size pair | |
1513 | that causes the pointer to integer-wrap past zero. | |
1514 | ||
e4e3a2ab DH |
1515 | ! Fixed a fenceposting bug when a client had two host records configured, |
1516 | one using 'uid' and the other using 'hardware ethernet'. CVE-2009-1892 | |
95f5d38c | 1517 | |
875e99dc SR |
1518 | - Fixed the check in the dhcp_interface_signal_handler routine to verify |
1519 | the existence of the linked signal handler before calling it. | |
1520 | ||
2267da84 DH |
1521 | - Both host and subnet6 configuration groups are now included whether a |
1522 | fixed-address6 (DHCPv6) is in use or not. Host scoped configuration takes | |
1523 | precedence. This fixes two bugs, one where host scoped configuration | |
1524 | would not be included from a non-fixed-address6 host record, and the equal | |
1525 | and opposite bug where subnet6 scoped configuration would not be used when | |
571c38b0 | 1526 | over-riding values were not present in a matching fixed-address6 host |
2267da84 DH |
1527 | configuration. |
1528 | ||
cd3f0b9b DH |
1529 | - ./configure now checks to ensure the intX_t and u_intX_t types are defined, |
1530 | correcting a compilation failure when using Sun's compiler. | |
1531 | ||
0493fdca SR |
1532 | - Modified the handling of a connection to avoid releasing the omapi io |
1533 | object for the connection while it is still in use. One symptom from | |
1534 | this error was a segfault when a failover secondary attempted to connect | |
1535 | to the failover primary if their clocks were not synchronized. | |
1536 | ||
95bba8b6 SR |
1537 | - Clean up to allow compilation with gcc 2.95.4 on FreeBSD. Remove an |
1538 | extra semi-colon from common/dns.c and moved setting a variable to NULL | |
1539 | in server/dhcpv6.c to allow the compiler to decide that the variable | |
9a111ee8 | 1540 | was always properly set. |
95bba8b6 | 1541 | |
adbef119 | 1542 | Changes since 4.1.0b1 |
ebf076fe EH |
1543 | |
1544 | - A missing "else" in dhcrelay.c could have caused an interface not to | |
1545 | be recognized. | |
61d75ea2 | 1546 | |
a4ffedd1 DH |
1547 | Changes since 4.1.0a2 |
1548 | ||
1549 | - A cosmetic bug in DHCPDECLINE processing was fixed which caused all | |
1550 | successful DHCPDECLINEs to be logged as "not found" rather than | |
1551 | "abandoned". | |
1552 | ||
6ff3b26d FD |
1553 | - Added configuration file examples for DHCPv6. |
1554 | ||
1387545f DH |
1555 | - Some failover debugging #defines have been better defined and some |
1556 | high frequency messages moved to a deeper debugging symbol. | |
1557 | ||
1558 | - The CLTT parameter in failover is now only updated by client activity, | |
1559 | and not by failover binding updates (taking on the peer's CLTT). | |
1560 | ||
1561 | - Failover BNDUPD messages are now discarded if they conflict with an | |
d7ac7a27 | 1562 | update that has been transmitted, but not acknowledged. |
1387545f | 1563 | |
399d3dbe DH |
1564 | - A bug cleaning up unknown-xxx temporary option definitions was fixed. |
1565 | ||
fbcee149 DH |
1566 | - Delayed-ack is now a compile-time option, compiled out by default. |
1567 | This feature is simply too experimental for right now, and causes | |
1568 | some problems to some failover installations. We will revisit this | |
1569 | in future releases. | |
1570 | ||
f1672d89 DH |
1571 | - The !inet_pton() call in res_mkupdrec was adjusted to '<= 0' as |
1572 | inet_pton returns either 1, 0, or -1. | |
1573 | ||
236d3a99 DH |
1574 | - A dhclient-script for MacOS X has been included, which enables |
1575 | 'dhclient -6' support. | |
1576 | ||
efa5e6b9 DH |
1577 | - DDNS removal routines were updated so that the DHCID is not removed until |
1578 | the client has been deprived of all A and AAAA records (not only the last | |
1579 | one of either of those). This resolves a bug where dual stack clients | |
1580 | would not be able to regain their names after either expiration event. | |
1581 | ||
7d6180be | 1582 | Changes since 4.1.0a1 |
edcb5c46 EH |
1583 | |
1584 | - Corrected list of failover state values in dhcpd man page. | |
1585 | ||
51e7687f EH |
1586 | - Fixed a bug that caused some request types to be logged incorrectly. |
1587 | ||
20210a7b EH |
1588 | - Clients that sent a parameter request list containing the |
1589 | routers option before the subnet mask option were receiving | |
1590 | only the latter. Fixed. | |
1591 | ||
535485df EH |
1592 | - The server wasn't always sending the FQDN option when it should. |
1593 | ||
8fbb55ff DH |
1594 | - A partner-down failover server no longer emits 'peer holds all free leases' |
1595 | if it is able to newly-allocate one of the peer's leases. | |
1596 | ||
61220a00 EH |
1597 | - Fixed a coredump when adding a class via OMAPI. |
1598 | ||
c40e954c EH |
1599 | - Check whether files are zero length before trying to parse them. |
1600 | ||
63971a83 DH |
1601 | - Ari Edelkind's PARANOIA patch has been included and may be compiled in |
1602 | via two ./configure parameters, --enable-paranoia and | |
1603 | --enable-early-chroot. | |
1604 | ||
66cebfcb DH |
1605 | - ./configure was extended to cover many optional build features, such |
1606 | as failover, server tracing, debugging, and the execute() command. | |
1607 | ||
f8cbf390 DH |
1608 | - There is now a default 1/4 of a second scheduled delay between delayed |
1609 | fsync()'s, it can be configured by the max-ack-delay configuration | |
1610 | parameter. | |
1611 | ||
8269561d DH |
1612 | - A bug was fixed where the length of a hostname was miscalculated, so that |
1613 | hosts were given odd-looking domain names ("foo.bar.ba.example.com"). | |
1614 | ||
b445a411 DH |
1615 | - Shared network selection should be done from the innermost relay |
1616 | valid link-address field, rather than the outermost. | |
1617 | ||
bd72740e FD |
1618 | - Prefix pools are attached to shared network scopes. |
1619 | ||
9322442f FD |
1620 | - Merged IA_XX related structures. |
1621 | ||
8dea7ba7 FD |
1622 | - Add DHCPv6 files in configure. |
1623 | ||
4619c0a2 DH |
1624 | - A memory leak when using omapi has been fixed. |
1625 | ||
9ac4206a DH |
1626 | - DHCPv6 vendor-class options (VSIO) are now only sent when they appear |
1627 | on the DHCPv6 ORO. This resolves a bug where VSIO options were placed | |
1628 | in IA_NA encapsulated options fields. | |
1629 | ||
420d8b3f FD |
1630 | - Integrated client with stateless, temporary address and prefix delegation |
1631 | support. | |
1632 | ||
40ec5f38 DH |
1633 | - A double-dereference in dhclient transmission of DHCPDECLINEs was |
1634 | repaired. | |
1635 | ||
80097764 FD |
1636 | - Fix handling of format code 'Z'. |
1637 | ||
ffbaa880 FD |
1638 | - Support "-1" argument in DHCPv6. |
1639 | ||
7de20a95 EH |
1640 | - Merge DHCPv6-only "dhcrelay6" into general-purpose "dhcrelay" (use |
1641 | "-6" option to select DHCPv6 mode). | |
1642 | ||
d352732e EH |
1643 | - Fix handling of -A and -a flags in dhcrelay; it was failing to expand |
1644 | packet size as needed to add relay agent options. | |
1645 | ||
7d6180be DH |
1646 | - A bug in subnet6 parsing where options contained in subnet6 clauses would |
1647 | not be applied to clients addressed within that network was repaired. | |
1648 | ||
1649 | - When configuring a "subnet {}" or "subnet6 {}" without an explicit | |
1650 | shared-network enclosing it, the DHCP software would synthesize a | |
1651 | shared-network to contain the subnet. However, all configuration | |
1652 | parameters within the subnet more intuitively belong "to any client | |
1653 | on that interface", or rather the synthesized shared-network. So, | |
1654 | when a shared-network is synthesized, it is used to contain the | |
1655 | configuration present inside the subnet {} clause. This means that | |
1656 | the configuration will be valid for all clients on that network, not | |
1657 | just those addressed out of the stated subnet. If you intended the | |
1658 | opposite, the workaround is to explicitly configure an empty | |
1659 | shared-network. | |
1660 | ||
1661 | - A bug was fixed where Information-Request processing was not sourcing | |
1662 | configured option values. | |
1663 | ||
1664 | - A warning was added since the DHCPv6 processing software does not yet | |
1665 | support class statements. | |
1666 | ||
adb95d23 | 1667 | - Compilation warnings on GCC 4.3 relating to bootp source address |
dd484ced DH |
1668 | selection were repaired. |
1669 | ||
ecddae64 DH |
1670 | - The v6 BSD socket method was updated to use a single UDP BSD socket |
1671 | no matter how many interfaces are involved, differentiating the | |
1672 | interfaces the packets were received on by the interface index supplied | |
1673 | by the OS. | |
1674 | ||
1675 | - The relay agent no longer listens to the All DHCP Servers Multicast | |
1676 | address. | |
1677 | ||
1678 | - A bug was fixed in data_string_sprintfa() where va_start was only called | |
1679 | once for two invocations of vsprintf() variants. | |
1680 | ||
d104d45b DH |
1681 | - ERO (RFC 4994) server support. |
1682 | ||
1683 | - Basic and partial DHCPv6 leasequery support. | |
1684 | ||
1685 | - Reliable DHCPv6 release (previous behavior, send release and exit, is | |
1686 | still available with dhclient -6 -1 -r). | |
1687 | ||
01a54c17 | 1688 | Changes since 4.0.0 (new features) |
3c12f746 | 1689 | |
6d7f9584 FD |
1690 | - Added DHCPv6 rapid commit support. |
1691 | ||
4cafb815 | 1692 | - Added explicit parser support for zero-length DHCP options, such as |
6d7f9584 | 1693 | rapid-commit, via format code 'Z'. |
4cafb815 | 1694 | |
022fe95e EH |
1695 | - It's now possible to update the "ends" field of a lease with OMAPI. |
1696 | This is useful if you want not only to release a lease, but also make | |
1697 | it available for reuse right away. Hat tip to Christof Chen. | |
1698 | ||
9a111ee8 | 1699 | - Fixed definition of the iaaddr hash functions to use the correct |
1dcc3612 SK |
1700 | functions when referencing and dereferencing memory. |
1701 | ||
aabfa4de FD |
1702 | - Some definitions not in phase with the IANA registry were updated. |
1703 | ||
0674055a FD |
1704 | - Allocated interface IDs are better controlled ('u' bit set to zero, |
1705 | reserved IDs avoided). | |
1706 | ||
b51c785f FD |
1707 | - Unicast options are taken into account only for RENEWs. |
1708 | ||
900405e9 FD |
1709 | - NoAddrsAvail answers to SOLICITs are always ADVERTISEs even when a SOLICIT |
1710 | carries a rapid-commit option. | |
1711 | ||
96b620e5 FD |
1712 | - Return in place of raise an impossible condition when one tries to release |
1713 | an empty active lease. | |
1714 | ||
be62cf06 FD |
1715 | - Timer granularity is now 1/100s in the DHCPv6 client. |
1716 | ||
01a54c17 EH |
1717 | - The dhclient-script was updated to create a host route for the default |
1718 | gateway if the supplied subnet mask for an IPv4 address was a /32. This | |
1719 | allows the client to work in 'captive' network environments, where the | |
1720 | operator does not want clients to crosstalk directly. | |
1721 | ||
adb95d23 | 1722 | - MINUS tokens should be parsable again. |
01a54c17 EH |
1723 | |
1724 | - Multiple (up to "delayed-ack x;" maximum) DHCPv4 packets are now queued and | |
1725 | released in bursts after single fsync() events when the upper limit is | |
1726 | reached or if the receiving sockets go dry. The practical upshot is | |
1727 | that fsync-coupled server performance is now multiplicitively increased. | |
1728 | The default delayed ack limit is 28. Thanks entirely to a patch from | |
1729 | Christof Chen. | |
1730 | ||
1731 | Changes since 4.0.0 (bug fixes) | |
1732 | ||
1733 | - DHCP now builds on AIX. | |
1734 | ||
1735 | - Exit with warning when DHCPv6-specific statements are used in the | |
1736 | config file but -6 is not specified. | |
1737 | ||
1738 | - Fixed "--version" flag in dhcrelay | |
1739 | ||
1740 | - The 'min-secs' configuration parameter's log message has been updated to | |
1741 | be more helpful. | |
1742 | ||
1743 | - The warning logged when an address range doesn't fit in the subnets | |
1744 | they were declared has been updated to be more helpful and identify the | |
1745 | typo in configuration that created the spanning addresses. | |
1746 | ||
1747 | - A bug in failover pool rebalancing that caused POOLREQ message ping-pongs | |
1748 | was repaired. | |
1749 | ||
1750 | - A flaw in failover pool rebalancing that could cause POOLREQ messages to | |
1751 | be sent outside of the min-balance/max-balance scheduled intervals has | |
1752 | been repaired. | |
1753 | ||
1754 | - A cosmetic bug during potential-conflict recovery that caused the peer's | |
1755 | 'conflict-done' state message to be logged as 'unknown-state' has been | |
1756 | repaired. It is now logged correctly. | |
1757 | ||
49f61135 DH |
1758 | - A bug was fixed where the 'giaddr' may be used to find the client's subnet |
1759 | rather than its own 'ciaddr'. | |
1760 | ||
41d4652f DH |
1761 | - A log message was introduced to clarify the situation where a failover |
1762 | 'address' parameter (the server's local address) did not resolve to an | |
1763 | IPv4 address. | |
1764 | ||
2c9bf1f4 DH |
1765 | - The minimum site code value was set to 224 in 3.1.0 to track RFC3942. This |
1766 | broke a lot of legacy site local configurations. The new code in place will | |
1767 | track site local space minimum option codes and logs a warning to encourage | |
1768 | updates and exploration of site local code migration problems. Option | |
1769 | codes less than 128 in site local spaces remain inaccessible. | |
1770 | ||
1771 | - A possible relay agent option bug was repaired where random server | |
1772 | initialization state may have been used to signal the relay agent | |
1773 | information options sub-option code for the 'END' of the option space. | |
1774 | ||
cff9b78f SK |
1775 | - Fixes to allow code to compile and run on Solaris 9. |
1776 | ||
c4d29896 SK |
1777 | - Fixes to allow code to compile on Mac OS X Leopard (10.5). |
1778 | ||
57fcb8d9 SK |
1779 | - When server is configured with options that it overrides, a warning is |
1780 | issued when the configuration file is read, rather than at the time the | |
1781 | option is overridden. This was important, because the warning was given | |
9a111ee8 | 1782 | every time the option was overridden, which could create a lot of |
57fcb8d9 SK |
1783 | unnecessary logging. |
1784 | ||
219a65eb DH |
1785 | - Fixed a compilation problems on platforms that define a value for FDDI, |
1786 | which conflicts with a dhcp configuration syntax token by the same name. | |
1787 | ||
ffdf3c8c DH |
1788 | - When a failover server suspects it has encountered a peer running a |
1789 | version 3.0.x failover server, a warning that the failover wire protocol | |
1790 | is incompatible is printed. | |
1791 | ||
1792 | - The failover server no longer issues a floating point error if it encounters | |
1793 | a previously undefined option code. | |
1794 | ||
00a002fc MA |
1795 | - Fix startup error messages to report a missing "subnet6 declaration", rather |
1796 | than a missing "subnet declaration", when running as a DHCPv6 server. | |
1797 | ||
9a111ee8 | 1798 | - DHCPv6 client timestamp in DUID was based on the year 1970 rather |
7e9f7a1b FD |
1799 | than the year 2000. |
1800 | ||
e2cfde76 FD |
1801 | - Warn when attempting to use a hardware parameter in DHCPv6. |
1802 | ||
cabdb9b1 FD |
1803 | - DHCPv6 released resources are now marked as released by the client. |
1804 | ||
5d89d60f FD |
1805 | - 'Soft' bindings have no more side-effects. |
1806 | ||
61d75ea2 DH |
1807 | Changes since 4.0.0b3 |
1808 | ||
1809 | - The reverse dns name for PTR updates on IPv6 addresses has been fixed to | |
1810 | use ip6.arpa. rather than default to in-addr.arpa and require user | |
1811 | configuration. | |
76db44f9 | 1812 | |
e32529a5 EH |
1813 | - dhc6_lease_destroy() and dhc6_ia_destroy() now set lease and IA pointers |
1814 | to NULL after freeing, to prevent subsequent accesses to freed memory. | |
1815 | ||
9a111ee8 | 1816 | - The DHCPv6 server would not send the preference option unless the |
76db44f9 SK |
1817 | client requested it, via the ORO. This has been fixed, so the DHCPv6 |
1818 | server will always send the preference value if it is configured. | |
e4a6be15 | 1819 | |
9a111ee8 TM |
1820 | - When addresses were passed as hints to the server in an IA, they were |
1821 | incorrectly handled, sometimes being treated as an error. Now the | |
6f76de58 SK |
1822 | server will treat these as hints and ignore them if it cannot supply |
1823 | a requested address. | |
1824 | ||
703873ab DH |
1825 | - If the client had multiple addresses, and one expired (was not renewed |
1826 | by the server), the client would continue to attempt to renew the same | |
1827 | old address over and over. Now, the client will omit any expired | |
1828 | addresses from future Confirm, Renew, or Rebind messages. | |
1829 | ||
1830 | - dhclient -6 will now select renew/rebind timers based upon the longest | |
1831 | address expiration time rather than the shortest expiration time, in | |
1832 | order to avoid cascading renewals in the event a server elects not to | |
1833 | extend one of multiple IAADDR leases. | |
1834 | ||
b024480e DH |
1835 | - The server now limits clients that request multiple addresses to one |
1836 | address per IA by default, which can be adjusted through the | |
1837 | "limit-addrs-per-ia" configuration option. | |
1838 | ||
c0216cb7 DH |
1839 | - The DHCPv6 client now issues fresh transaction IDs on Renew and Rebind |
1840 | message exchanges, rather than using the most recent ID. | |
1841 | ||
1ac57173 FD |
1842 | - The DHCPv6 server now replies to Information-Request messages. |
1843 | ||
83835822 DH |
1844 | - A bug was fixed in the dhclient-script for BSDs to correctly carry error |
1845 | codes through some conditions. | |
1846 | ||
c54db708 FD |
1847 | - The parsing of some options in the dhclient lease file, in particular |
1848 | the success DHCPv6 status-code, was fixed. | |
1849 | ||
e5d83524 DH |
1850 | - A bug was fixed that caused the DHCPv6 ORO option to be corrupted with |
1851 | seemingly random values. | |
1852 | ||
821f2dda DH |
1853 | - A reference overleak in DHCPv6 shared network processing was repaired. |
1854 | ||
f8b3c6f4 DH |
1855 | - ./configure now autodetects local database locations rather than trying |
1856 | to put dhcpd.leases and dhclient.leases in /usr/local/var/db, which no | |
1857 | one ever has. | |
1858 | ||
9a111ee8 TM |
1859 | - Regression fix for bug where server advertised a IPv6 address in |
1860 | response to a SOLICIT but would not return the address in response | |
b9137d42 SK |
1861 | to a REQUEST. |
1862 | ||
9f1d5a2f DH |
1863 | - A bug was fixed where the DHCPv6 server puts the NoAddrsAvail status |
1864 | code in the IA_NA was fixed. The status code now appears in the root | |
1865 | level. | |
1866 | ||
e4a6be15 DH |
1867 | Changes since 4.0.0b2 |
1868 | ||
65cf86d7 EH |
1869 | - Clarified error message when lease limit exceeded |
1870 | ||
b1d3778c DH |
1871 | - Relative time may now be used as a qualifier for 'allow' and 'deny' access |
1872 | control lists. These directives may be used to assist in re-addressing | |
1873 | address pools without having to constantly reconfigure the server. Please | |
1874 | see 'man dhcpd.conf' for more information on allow/deny 'after time' syntax. | |
1875 | Thanks to a patch from Christof Chen. | |
1876 | ||
bead14ea DH |
1877 | - The server will now include multiple IA_NA's and multiple IAADDRs within |
1878 | them, if advertised by the client. It still only seeks to allocate one | |
1879 | new address. | |
1880 | ||
f765ec36 SK |
1881 | Changes since 4.0.0b1 |
1882 | ||
75135a3f | 1883 | - Use different paths for PID and lease files when running in DHCPv4 |
adb95d23 | 1884 | or DHCPv6 mode, so that servers for both protocols can be run |
75135a3f EH |
1885 | simultaneously on a single interface. |
1886 | ||
5c2d55c7 EH |
1887 | - Fixed a buffer overflow error which could have allowed a denial |
1888 | of service under unusual server configurations | |
1889 | ||
1890 | - Eliminated a spurious error message from the client | |
1891 | ||
9a111ee8 | 1892 | - A number of bugs with the internal handling of lease state on the |
f765ec36 | 1893 | server have been fixed. Some of these could cause server crashes. |
fa9b593d | 1894 | |
edb1283e DH |
1895 | - The peer_wants_leases() changes pulled up from 3.1.0 were corrected, |
1896 | 'never used' leases will no longer consistently shift between servers | |
1897 | on every pool rebalance run. | |
1898 | ||
c71c6399 DH |
1899 | - sendmsg()/recvmsg() control buffers are now declared in such a way to |
1900 | ensure they are correctly aligned on all (esp. 64-bit) architectures. | |
1901 | ||
5279b8f3 DH |
1902 | - The client leasing subsystem was streamlined and corrected to account |
1903 | more closely for changes in client link attachment selection. | |
1904 | ||
ab3a540f | 1905 | Changes since 4.0.0a3 |
763cba6b | 1906 | |
9a111ee8 | 1907 | - The DHCP server no longer requires a "ddns-update-style" statement, |
884a458f SK |
1908 | and now defaults to "none", which means DNS updates are disabled. |
1909 | ||
fa9b593d DH |
1910 | - Log messages when failover peer names mismatch have been improved to |
1911 | point out the problem. | |
1912 | ||
9a111ee8 | 1913 | - Bug where server advertised a IPv6 address in response to a SOLICIT |
1b5053b5 SK |
1914 | but would not return the address in response to a REQUEST. Thanks to |
1915 | Dennis Kou for finding the bug. | |
1916 | ||
c886c298 SK |
1917 | - Fixed an error causing the server to lock up on lease expiration, |
1918 | reported independently by Jothilingam Vasu and Dennis Kou. | |
1919 | ||
eaf7eb17 DH |
1920 | - Fixed a ./configure bug where compile tests were failing due to |
1921 | "-Werror" (unused variable) rather than the actual test failure. Lead | |
1922 | to inconsistent and unworkable auto-configurations. | |
1923 | ||
109e00db DH |
1924 | - Compilation with DLPI and -Werror has been repaired. |
1925 | ||
9a111ee8 | 1926 | - Error in decoding IA_NA option if multiple interfaces are present |
3ad9d48f SK |
1927 | fixed by Marcus Goller. |
1928 | ||
8eab95f2 DH |
1929 | - DHCPv6 server Confirm message processing has been enhanced - it no |
1930 | longer replies only to clients with host {} records, it now replies | |
1931 | as directed in RFC3315 section 18.2.2 - that is, to all clients | |
1932 | regardless of the existence of bindings. | |
1933 | ||
07b9a351 DH |
1934 | - A core dump during expired lease cleanup has been repaired. |
1935 | ||
7285af30 DH |
1936 | - DDNS updates state information are now stored in 'binding scopes' that |
1937 | follow the leases through their lifecycles. This enables DDNS teardowns | |
1938 | on leases that are assigned and expired inbetween a server restart (the | |
1939 | state is recovered from dhcpd.leases). Arbitrary user-specified binding | |
1940 | scopes ('set var = "value";') are not yet supported. | |
1941 | ||
2394b26b DH |
1942 | - Additional compilation problems on HP/UX have been repaired. |
1943 | ||
ab3a540f SK |
1944 | Changes since 4.0.0a2 |
1945 | ||
97050349 SK |
1946 | - Fix for startup where there are no IPv4 addresses on an interface. |
1947 | Thanks to Marcus Goller for reporting the bug. | |
1948 | ||
763cba6b | 1949 | - Fixed file descriptor leak on listen failure. Thanks to Tom Clark. |
e889ded1 | 1950 | |
237f8d3a | 1951 | - Bug in server configuration parser caused server to get stuck on |
9a111ee8 | 1952 | startup for certain bad pool declarations. Thanks to Guillaume |
237f8d3a SK |
1953 | Knispel for the bug report and fix. |
1954 | ||
28868515 SK |
1955 | - Code cleaned to remove warnings reported by "gcc -Wall". |
1956 | ||
d00d373a SK |
1957 | - DHCPv6 is now the default. You can disable DHCPv6 support using the |
1958 | "--disable-dhcpv6" flag when you run the configure script. | |
1959 | ||
8dfd5744 DH |
1960 | - An internal database inconsistency bug was repaired where the server |
1961 | would segfault if a client attempted to renew a lease that had been | |
1962 | loaded from persistent storage. | |
1963 | ||
45d545f0 | 1964 | - 'request' and 'also request' syntaxes have been added to accommodate |
0c20eab3 DH |
1965 | the DHCPv6 client configuration. 'send dhcp6.oro' is no longer |
1966 | necessary. | |
1967 | ||
9a111ee8 TM |
1968 | - Bug fixed where configuration file parsing did not work with |
1969 | zero-length options; this made it impossible to set the | |
f800f4f6 SK |
1970 | rapid-commit option. |
1971 | ||
845e9677 DH |
1972 | - Bogus messages about host records with IPv4 fixed-addresses being of |
1973 | non-128-bits in length were removed. | |
1974 | ||
76c944da SK |
1975 | Changes since 4.0.0a1 |
1976 | ||
71765b58 SK |
1977 | - Bug in octal parsing fixed. Thanks to Bernd Fuhrmann for the report |
1978 | and fix. | |
1979 | ||
847e7000 SK |
1980 | - Autoconf now supplies proper flags for Solaris DHCPv6 builds. |
1981 | ||
bda33169 SK |
1982 | - Fix for parsing error on some IPv6 addresses. |
1983 | ||
9b21e73e SK |
1984 | - Invalid CIDR representation for IPv6 subnets or ranges now checked |
1985 | for when loading configuration. | |
1986 | ||
8da06bb1 DH |
1987 | - Compilation on HP/UX has been repaired. The changes should generally |
1988 | apply to any architecture that supplies SIOCGLIFCONF but does not | |
1989 | use 'struct lifconf' structures to pass values. | |
1990 | ||
dd328225 DH |
1991 | - Two new operators, ~= and ~~, have been integrated to implement |
1992 | boolean matches by regular expression (such as may be used in | |
1993 | class matching statements). Thanks to a patch by Alexandr S. | |
1994 | Agranovsky, which underwent slight modification. | |
1995 | ||
76c944da SK |
1996 | - Fix for icmp packets on 64-bit systems (bug introduced in 4.0). |
1997 | ||
f796f70a DH |
1998 | - A bug was fixed in interface discovery wherein an error identifying |
1999 | a server-configured interface with no IPv4 addresses would SEGV. | |
76c944da | 2000 | |
c11f349d EH |
2001 | - Fixed a bug in which write_lease() might report a failure incorrectly |
2002 | ||
af5fa176 EH |
2003 | - Added support for DHCPv6 Release messages |
2004 | ||
2005 | - Added -x option to dhclient, which triggers dhclient processes | |
2006 | to exit gracefully without releasing leases first | |
2007 | ||
a546f2a7 EH |
2008 | - All binaries (client, server, relay) now change directories |
2009 | to / before going into daemon mode, so as not to hold $CWD open | |
2010 | ||
b55d0d5f EH |
2011 | - Fixed a bug parsing DHCPv6 client-id's in host-identifier statements |
2012 | ||
26be82af DH |
2013 | - Fixed a bug with the 'ddns-updates' boolean server configuration |
2014 | parameter, which caused the server to fail. | |
2015 | ||
98bd7ca0 DH |
2016 | Changes since 4.0.0-20070413 |
2017 | ||
d9b43370 SK |
2018 | - Old (expired) leases are now cleaned. |
2019 | ||
8c1752d2 DH |
2020 | - IPv6 subnets now have support for arbitrary allocation ranges via |
2021 | a new 'range6' configuration directive. | |
2022 | ||
98bd7ca0 DH |
2023 | - An obviated option code hash lookup to find D6O_CLIENTID was removed. |
2024 | ||
a512d11b DH |
2025 | - Corrected some situations where variables might be used without being |
2026 | initialized. | |
2027 | ||
2028 | - Silenced several other compiler warnings. | |
2029 | ||
2030 | - Include the more standard sys/uio.h rather than rely upon other | |
f66f02cc DH |
2031 | header files to include it (fixes a BSD 4.2 compile failure). |
2032 | ||
2033 | - Duplicate dhclient-script updates for DHCPv6 to all provided scripts. | |
a512d11b | 2034 | |
4ba58919 DH |
2035 | - DHCPv4 I/O methods that failed to sense hardware address were corrected. |
2036 | ||
2037 | - DHCPv4 is now the default (as documented) rather than DHCPv6. The default | |
2038 | was set to DHCPv6 to facilitate ease early development, and forgotten. | |
2039 | ||
2040 | - Corrected a segmentation violation in DHCPv4 socket processing. | |
2041 | ||
8ea19a71 | 2042 | - dhclient will now fork() into the background once it binds to an |
45d545f0 | 2043 | IPv6 address, or immediately if the -n flag is supplied. |
8ea19a71 DH |
2044 | |
2045 | - -q is now the default behaviour on dhclient, with -d or -v enabling | |
2046 | non-quiet (stderr logging) mode. | |
2047 | ||
2cf8d0bd DH |
2048 | - Fix documentation of the domain-search atom (quoted, with commas). |
2049 | ||
2050 | - Document DHCPv6 options presently in the default table. | |
2051 | ||
fe5b0fdd DH |
2052 | - Replaced ./configure shellscripting with GNU Autoconf. |
2053 | ||
98bd7ca0 DH |
2054 | Changes since 3.1.0 (NEW FEATURES) |
2055 | ||
2056 | - DHCPv6 Client and Server protocol support. Use '-6' to run the daemons | |
2057 | as v6-only. Use '-4' to run the daemons as v4-only (default. There is | |
2058 | no support currently for both. | |
2059 | ||
2060 | - Server support for multiple IA_NA options, containing at most one | |
2061 | IAADDR option. | |
2062 | ||
2063 | - Client support for one IA_NA option, containing any number of IAADDR | |
2064 | options. | |
2065 | ||
2066 | - Server support for the DHCPv6 Information-request message. | |
2067 | ||
2068 | - Inappropriate unicast DHCPv6 messages sent to the server are now | |
2069 | discarded, and this has rearchitected the IO system slightly. | |
2070 | ||
2071 | - The DHCPv6 server DUID defaults to type 1, is persistently stored in | |
2072 | the leases database, and can be over-ridden (either completely, or by | |
2073 | specifying type 1 or type 2). | |
2074 | ||
2075 | - The server only uses Rapid-Commit if it has been configured with the | |
2076 | Rapid-Commit option and the client requests it. | |
2077 | ||
2078 | - DDNS support. We now update AAAA records in the same place we would | |
2079 | update A records, if we have an IPv6 address. We also generate IP6.ARPA | |
2080 | style names for PTR records if we're dealing with an IPv6 address. Both | |
2081 | A and AAAA updates are done using the same 'fqdn.' virtual option space | |
2082 | (although the DHCPv4 FQDN and DHCPv6 FQDN options are formatted | |
2083 | differently, they both use the same code here). | |
2084 | ||
2085 | - The Linux dhclient-script attempts to set and remove assigned addresses, | |
2086 | and to configure /etc/resolv.conf from nameserver and domain name | |
2087 | configurations. It can be extended to configure other parameters. | |
2088 | ||
2089 | - Initial DHCPv6 lease support. | |
2090 | ||
2091 | - The IO system now tracks all local IP addresses, so that the DHCP | |
2092 | applications (particularly the dhcrelay) can discern between what frames | |
2093 | were transmitted to it, and what frames are being carried through it which | |
2094 | it should not intercept. | |
2095 | ||
1418fd11 DH |
2096 | Changes since 3.1.0 (Maintenance) |
2097 | ||
2098 | - A bug was repaired where MAC Address Affinity for virgin leases always | |
2099 | mapped to the primary. Virgin leases now have an interleaved preference | |
2100 | between primary and secondary. | |
2101 | ||
2102 | - A bug was repaired where MAC Address Affinity for clients with no client | |
2103 | identifier was sometimes mishashed to the peer. Load balancing during | |
2104 | runtime and pool rebalancing were opposing. | |
2105 | ||
aa3e348e DH |
2106 | - An assertion in lease counting relating to reserved leases was repaired. |
2107 | ||
e9c59645 DH |
2108 | - The subnet-mask option inclusion now conforms with RFC2132 section 3.3; |
2109 | it will only appear prior to the routers option if it is present on the | |
2110 | Parameter-Request-List. The subnet-mask option will also only be | |
2111 | included by default (if it is not on the PRL) in response to DISCOVER | |
2112 | or REQUEST messages. | |
2113 | ||
2114 | - The FQDN option is only supplied if the client supplied an FQDN option or | |
2115 | if the FQDN option was explicitly requested on the PRL. | |
2116 | ||
c104546d DH |
2117 | - Dynamic BOOTP leases are now load balanced in failover. |
2118 | ||
b9d0cc05 DH |
2119 | Changes since 3.1.0rc1 |
2120 | ||
adb95d23 | 2121 | - The parse warning that 'deny dynamic bootp;' must be configured for |
b9d0cc05 DH |
2122 | failover protected subnets was removed. |
2123 | ||
a512cc3a DH |
2124 | Changes since 3.1.0b2 |
2125 | ||
2126 | - Failover rebalance events no longer play ping pong with round errors | |
2127 | (moving leases between free and back to backup where there are an | |
2128 | odd number of leases). | |
2129 | ||
2130 | - The 'pool' log line has been split into two messages, one before the | |
2131 | rebalance run, and one after. | |
2132 | ||
2133 | - Any queued BNDACKs are transmitted before transmitting new BNDUPDs. | |
2134 | This enforces the correct sequence of events for the remote server | |
2135 | processing these messages. | |
2136 | ||
fe5b0fdd | 2137 | Changes since 3.1.0b1 |
27837f95 | 2138 | |
74dc3e0b EH |
2139 | - Fixed a bug that caused OMAPI clients to freeze when opening lease |
2140 | objects. | |
2141 | ||
1ba87b37 EH |
2142 | - A new server config option "fqdn-reply" specifies whether the server |
2143 | should send out option 81 (FQDN). Defaults to "on". If set to "off", | |
2144 | the FQDN option is not sent, even if the client requested it. This is | |
2145 | needed because some clients misbehave otherwise. Thanks to Christof Chen | |
2146 | at Allianz. | |
2147 | ||
a58da042 EH |
2148 | - Allow trace output files (-tf option) to be overwritten, rather than |
2149 | crashing dhcpd if the file already exists | |
2150 | ||
61252edf EH |
2151 | - A bug was fixed that caused dhcpd to segfault if a pool was declared |
2152 | outside the scope of a subnet in dhcpd.conf. | |
2153 | ||
27837f95 DH |
2154 | - Some uninitialized values were repaired in dhcpleasequery.c that |
2155 | caused the server to abort. | |
2156 | ||
4d2eaafb DH |
2157 | - A new server config option, 'do-reverse-updates', has been added |
2158 | which causes the server to abstain from performing updates on PTR | |
2159 | records. Thanks to a patch from Christof Chen at Allianz. | |
2160 | ||
06211b40 DH |
2161 | - A bug was repaired in subencapsulation support, where spaces separated |
2162 | by empty spaces would not get included. | |
2163 | ||
d6614ea2 DH |
2164 | - A bug in dhclient was repaired which caused it to send parameter request |
2165 | lists of 55 bytes in length no matter how long the declared PRL was. | |
2166 | ||
132d38f2 DH |
2167 | - 'dhcp.c(3953): non-null pointer' has been repaired. This fixes a flaw |
2168 | wherein the DHCPv4 server may ignore a configured server-identifier. | |
2169 | ||
fc3b9c90 DH |
2170 | - A flaw in failover startup sequences was repaired that sometimes left |
2171 | the primary DHCP server's pool rebalance schedules unscheduled. | |
2172 | ||
c9feb859 DH |
2173 | - Corrected a flaw that broke encapsulated spaces included due to presence |
2174 | on the parameter request list. | |
2175 | ||
c57db45c SK |
2176 | Changes since 3.1.0a3 |
2177 | ||
2178 | - Some spelling fixes. | |
98311e4b | 2179 | |
bd2bc2fa DH |
2180 | Changes since 3.1.0a2 |
2181 | ||
2182 | - A bug was fixed where attempting to permit leasequeries results in a | |
2183 | fatal internal error, "Unable to find server option 49". | |
2184 | ||
85edef5c DH |
2185 | - A bug was fixed in dhclient rendering the textual output form of the |
2186 | domain-search option syntax. | |
2187 | ||
bdddcb7d DH |
2188 | Changes since 3.1.0a1 |
2189 | ||
2190 | - A bug in the FQDN universe that added FQDN codes to the NWIP universe's | |
2191 | hash table was repaired. | |
2192 | ||
616d67cb DH |
2193 | - The servers now try harder to transmit pending binding updates when |
2194 | entering normal state. | |
2195 | ||
2196 | - UPDREQ/UPDREQALL handling was optimized - it no longer dequeues and | |
2197 | requeues all pending updates. This should reduce the number of spurious | |
66c8f734 DH |
2198 | 'xid mismatch' log messages. |
2199 | ||
2200 | - An option definition referencing leak was fixed, which resulted in early | |
2201 | termination of dhclient upon the renewal event. | |
616d67cb | 2202 | |
6708d944 DH |
2203 | - Some default hash table sizes were tweaked, some upwards, some downwards. |
2204 | 3.1.0a1's tables resulted in a reduction in default server memory use. | |
2205 | The new selected values provide more of a zero sum (increasing the size | |
2206 | of tables likely to be populated, decreasing the size of tables unlikely). | |
2207 | ||
45d545f0 | 2208 | - Lease structures appear in three separate hashes: by IP address, by UID, |
6708d944 DH |
2209 | and by hardware address. One type of table was used for all three, and |
2210 | improvements to IP address hashing were applied to all three (so UID and | |
2211 | hardware addresses were treated like 4-byte integers). There are now two | |
2212 | types of tables, and the uid/hw hashes use functions more appropriate | |
2213 | to their needs. | |
2214 | ||
2215 | - The max-lease-misbalance percentage no longer causes scheduled rebalance | |
2216 | runs to be skipped: it still governs the schedule, but every scheduled | |
2217 | run will attempt balance. | |
2218 | ||
a7ee93fe DH |
2219 | - A segfault bug in recursive encapsulation support has been corrected. |
2220 | ||
98311e4b DH |
2221 | Changes since 3.0 (New Features) |
2222 | ||
2223 | - A workaround for certain STSN servers that send a mangled domain-name | |
2224 | option was introduced for dhclient. The client will now accept corrupted | |
2225 | server responses, if they contain a valid DHCP_MESSAGE_TYPE (OFFER, ACK, | |
2226 | or NAK). The server will continue to not accept corrupt client packets. | |
2227 | ||
98bd7ca0 | 2228 | - Support for 'reserved' (pseudo-static) and BOOTP leases via failover |
a55ccdd0 | 2229 | was introduced. |
98311e4b DH |
2230 | |
2231 | - Support for adding, removing, and managing class and subclass statements | |
2232 | via OMAPI. | |
2233 | ||
a55ccdd0 DH |
2234 | - The failover implementation was updated to comply with revision 12 of |
2235 | the protocol draft. | |
2236 | ||
98311e4b DH |
2237 | - 'make install' now creates the initial zero-length dhcpd.leases file if |
2238 | one does not already exist on the system. | |
2239 | ||
b43c87ad | 2240 | - RFC3942 compliance, site-local option spaces start at 224 now, not 128. |
b43c87ad | 2241 | |
0b17f049 DH |
2242 | - The Load Balance Algorithm was misimplemented. The current implementation |
2243 | matches RFC 3074. | |
2244 | ||
2727c1cf DH |
2245 | - lcase() and ucase() configuration expressions have been added which adjust |
2246 | their arguments from upper to lower and lower to upper cases respectively. | |
2714a8ef | 2247 | Thanks to a patch from Albert Herranz. |
2727c1cf | 2248 | |
febbd402 DH |
2249 | - The dhclient 'reject ...;' statement, which rejects leases given by named |
2250 | server-identifiers, now permits address ranges to be specified in CIDR | |
7d7073e7 | 2251 | notation. Thanks to a patch from David Boyce. |
febbd402 | 2252 | |
ee912528 DH |
2253 | - The subnet-mask option is now supplied by default, but at lowest |
2254 | priority. This helps a small minority of clients that provide parameter | |
2255 | request lists, but do not list the subnet-mask option because they were | |
2256 | designed to interoperate with a server that behaves in this manner. | |
2257 | ||
2258 | - The FQDN option is similarly supplied even if it does not appear on the | |
2259 | parameter request list, but not to the exclusion of options that do | |
2260 | appear at the parameter request list. Up until now it had ultimate | |
2261 | priority over the client's parameter request list. | |
2262 | ||
f7fdb216 | 2263 | - Varying option space code and length bit widths (8/16/32) are now |
51202707 | 2264 | supported. This is a milestone in achieving RFC 3925 "VIVSO" and |
f7fdb216 DH |
2265 | DHCPv6 support. |
2266 | ||
5e864416 DH |
2267 | - A new common (server or client) option, 'db-time-format local;', has |
2268 | been added which prints the local time in /var/db/dhcpd.leases rather | |
2269 | than UTC. Thanks to a patch from Ken Lalonde. | |
2270 | ||
b500bd4c DH |
2271 | - Some patches to improve DHCP Server startup speed from Andrew Matheson |
2272 | have been incorporated. | |
2273 | ||
2426234f DH |
2274 | - Failover pairs now implement 'MAC Affinity' on leases moving from the |
2275 | active to free states. Leases that belonged to the failover secondary | |
2276 | are moved to BACKUP state rather than FREE upon exiting EXPIRED state. | |
2277 | If lease rebalancing must move leases, it tries first to move leases | |
2278 | that belong to the peer in need. | |
2279 | ||
2280 | - The server no longer sends POOLREQ messages unless the pool is severely | |
2281 | misbalanced in the peer's favor (see 'man dhcpd.conf' for more details). | |
2282 | ||
2283 | - Pool rebalance events no longer happen upon successfully allocating a | |
2284 | lease. Instead, they happen on a schedule. See 'man dhcpd.conf' for the | |
2285 | min-balance and max-balance statements for more information. | |
2286 | ||
334bf491 DH |
2287 | - The DHCP Relay Agent Information Option / Link Selection Sub-Option |
2288 | is now supported. (See RFC3527 for details). | |
2289 | ||
3004bebf DH |
2290 | - A new DDNS related server option, update-conflict-detection, has been |
2291 | added. If this option is enabled, dhcpd will perform normal DHCID | |
2292 | conflict resolution (the default). If this option is disabled, it will | |
2293 | instead trust the assigned name implicitly (removing any other bindings | |
2294 | on that name). This option has not been made available in dhclient. | |
2295 | ||
567e8561 DH |
2296 | - In those cases where the DHCP software manufactures an IP header (to |
2297 | transmit via bpf, lpf, etc), the IP TTL the software selects has been | |
2298 | increased from 16 to 128. This is intended to match Microsoft Windows | |
2299 | DHCP Client behaviour, to increase compatibility. | |
2300 | ||
a396d25f DH |
2301 | - 'ignore client-updates;' now has behaviour that is different from |
2302 | 'deny client-updates;'. The client's request is not truly ignored, | |
2303 | rather it is encouraged. Should this value be configured, the server | |
2304 | updates DNS as though client-updates were set to 'deny'. That is, it | |
2305 | enters into DNS whatever it is configured to do already, provided it is | |
2306 | configured to. Then it sends a response to the client that lets the | |
2307 | client believe it is performing client updates (which it will), probably | |
2308 | for a different name. In essence, this lets the client do as it will, | |
2309 | ignoring this aspect of their request. | |
2310 | ||
dba5803b DH |
2311 | - Support for compressed 'domain name list' style DHCP option contents, and |
2312 | in particular the domain search option (#119) was added. | |
2313 | ||
41e45067 | 2314 | - The DHCP LEASEQUERY protocol as defined in RFC4388 is now implemented. |
6d103865 SK |
2315 | LEASEQUERY lets you query the DHCP server for information about a lease, |
2316 | using either an IP address, MAC address, or client identifier. Thanks | |
2317 | to a patch from Justin Haddad. | |
2318 | ||
41e45067 DH |
2319 | - DHCPD is now RFC2131 section 4.1 compliant (broadcast to all-ones ip and |
2320 | ethernet mac address) on the SCO platform specifically without any strange | |
2321 | ifconfig hacks. Many thanks go to the Kroger Co. for donating the | |
2322 | hardware and funding the development. | |
6d103865 | 2323 | |
b543fea9 DH |
2324 | - A new common configuration executable statement, execute(), has been |
2325 | added. This permits dhcpd or dhclient to execute a named external | |
2326 | program with command line arguments specified from other configuration | |
2327 | language. Thanks to a patch written by Mattias Ronnblom, gotten to us | |
2328 | via Robin Breathe. | |
2329 | ||
b22de500 DH |
2330 | - A new dhcp server option 'adaptive-lease-time-threshold' has been added |
2331 | which causes the server to substantially reduce lease-times if there are | |
2332 | few (configured percentage) remaining leases. Thanks to a patch submitted | |
2333 | from Christof Chen. | |
2334 | ||
96bbe8c5 SK |
2335 | - Encapsulated option spaces within encapsulated option spaces is now |
2336 | formally supported. | |
2337 | ||
b8221d95 DH |
2338 | Changes since 3.0.6rc1 |
2339 | ||
2340 | - supersede_lease() now requeues leases in their respective hardware | |
2341 | address hash bucket. This mirrors client identifier behaviour. | |
2342 | ||
c1e6c832 DH |
2343 | Changes since 3.0.5 |
2344 | ||
f546c28b DH |
2345 | - Assorted fixes for broken network devices: Packet length is now |
2346 | determined from the IP header length field to finally calculate the | |
2347 | UDP payload length, because some NIC drivers return more data than | |
5a22eb63 | 2348 | they actually received. |
f546c28b DH |
2349 | |
2350 | - UDP packets are now stored in aligned data structures. | |
2351 | ||
c1e6c832 DH |
2352 | - A logic error in omapi interface code was repaired that might result in |
2353 | incorrectly indicating 'up' state when any flags were set, rather than | |
23e10d37 DH |
2354 | specifically the INTERFACE_REQUESTED flag. Thanks to a patch from |
2355 | Jochen Voss which got to us via Andrew Pollock at Debian. | |
c1e6c832 | 2356 | |
75ab3070 DH |
2357 | - A reference leak on binding scopes set by ddns updates was repaired. |
2358 | ||
d69fb6a8 | 2359 | - A memory leak in the minires_nsendsigned() function call was repaired. |
23e10d37 | 2360 | Effectively, this leaked ~176 bytes per DDNS update. |
d69fb6a8 | 2361 | |
02428754 DH |
2362 | - In the case where an "L2" DHCP Relay Agent (one that does not set giaddr) |
2363 | was directly attached to the same broadcast domain as the DHCP server, | |
2364 | the RFC3046 relay agent information option was not being returned to the | |
2365 | relay in the server's replies. This was fixed; the dhcp server no longer | |
2366 | requires the giaddr to reply with relay agent information. Note that | |
2367 | this also improves compatibility with L2 devices that "intercept" DHCP | |
2368 | packets and expect relay agent information even in unicast (renewal) | |
23e10d37 DH |
2369 | replies. Thanks to a patch from Pekka Silvonen. |
2370 | ||
2371 | - A bug was fixed where the BOOTP header 'sname' field had a value, the | |
2372 | copy written to persistent storage was actually the contents of the | |
2373 | 'file' field. | |
02428754 | 2374 | |
ecde99a3 DH |
2375 | - A bug was fixed where the nwip virtual option space was referencing |
2376 | the fqdn option's virtual option space's option cache. | |
2377 | ||
67674ffb DH |
2378 | - Timestamp parsing errors that indicated missing "minutes" fields rather |
2379 | than the actually missing "seconds" fields have been repaired thanks to | |
2380 | a patch from Kevin Steves. | |
2381 | ||
830ebc4c DH |
2382 | - A grammar error in the dhclient.8 manpage was repaired thanks to a patch |
2383 | from Chris Wagner. | |
2384 | ||
c759db75 DH |
2385 | - Several spelling typos were repaired, and some cross-references to other |
2386 | relevant documents were included in the manpages, thanks to a patch | |
2387 | by Andrew Pollock which got to us via Tomas Pospisek. | |
2388 | ||
9aa3f3a5 DH |
2389 | - Some bugs were fixed in the 'emergency relay agent options hologram' |
2390 | which is used to retain relay agent option contents from when the | |
2391 | client was in INIT or REBIND states. This should solve problems where | |
2392 | relay agent options were not echoed from the server, even when giaddr | |
2393 | was set. | |
2394 | ||
3d0c598a DH |
2395 | - dhclient now closes its descriptor to dhclient.leases prior to executing |
2396 | dhclient-script. Thanks to a patch from Tomas Pospisek. | |
2397 | ||
d5b6835f DH |
2398 | - The server's "by client-id" and "by hardware address" hash table lists |
2399 | are now sorted according to the preference to re-allocate that lease to | |
2400 | returning clients. This should eliminate pool starvation problems | |
2401 | arising when "INIT" clients were given new leases rather than presently | |
2402 | active ones. | |
2403 | ||
02428754 | 2404 | Changes since 3.0.5rc1 |
0a73b7b6 | 2405 | |
901306d5 | 2406 | - A bug was repaired in fixes to the dhclient, which sought to run the |
0a73b7b6 SK |
2407 | dhclient-script with the 'EXPIRE' state should it receive a NAK in |
2408 | response to a REQUEST. The client now iterates the PREINIT state | |
2409 | after the EXPIRE state, so that interfaces that might be configured | |
2410 | 'down' can be brought back 'up' and initialized. | |
2411 | ||
87a08ccc DH |
2412 | - DHCPINFORM handling for clients that properly set ciaddr and come to the |
2413 | server via a relay aget has been repaired. | |
2414 | ||
6da113fb DH |
2415 | Changes since 3.0.4 |
2416 | ||
2417 | - A warning that host statements declared within subnet or shared-network | |
2418 | scopes are actually global has been added. | |
2419 | ||
2420 | - The default minimum lease time (if min-lease-time was not specified) | |
2421 | was raised from 0 to 300. 0 is not thought to be sensible, and is | |
2422 | known to be damaging. | |
2423 | ||
2424 | - Added additional fatal error sanity checks surrounding lease binding | |
2425 | state count calculations (free/active counts used for failover pool | |
2426 | balancing). | |
2427 | ||
dcc557db DH |
2428 | - Some time value size fixes in 3.0.4 brought on from FreeBSD /usr/ports were |
2429 | misapplied to server values rather than client values. The server no longer | |
2430 | advertises 8-byte lease-time options when on 64-bit platforms. | |
2431 | ||
1b2ab55f DH |
2432 | - A bug where leases not in ACTIVE state would get billed to billed classes |
2433 | (classes with lease limitations) was fixed. Non-active leases OFFERed | |
2434 | to clients are no longer billed (but billing is checked before offering). | |
2435 | ||
e48891e8 DH |
2436 | - The dhcpd.conf.5 manpage was updated in regard to the ddns-domainname |
2437 | configuration option - the default configuration and results should be | |
2438 | more clear now. | |
2439 | ||
6cbc6629 DH |
2440 | - If the dhclient were to receive a DHCPNAK while it was in the RENEW |
2441 | state (and consequently, had an active, 'bound' address and related | |
2442 | configuration options), it would fail to 'tear down' this information | |
2443 | before proceeding into INIT state. dhclient now iterates the dhclient- | |
2444 | script with the 'EXPIRE' action to cause these teardowns prior to entering | |
1d3bfb17 | 2445 | INIT state. Thanks to a patch from Chris Zimmerman. |
6cbc6629 | 2446 | |
c5fec5fa DH |
2447 | - The omapi.1 manpage had some formatting errors repaired thanks to a patch |
2448 | from Yoshihiko Sarumaru. | |
2449 | ||
33e1cb2b DH |
2450 | - A few lines of code that were failover-specific were moved within |
2451 | #if defined() clauses so that compilation without failover could be | |
2452 | made possible. | |
2453 | ||
2bddf829 DH |
2454 | - The log message emitted when the 'leased-address' value was not available |
2455 | in dhcpd.conf "executable statements" has been updated to be more helpful. | |
2456 | Manpage information for this value has also been updated. | |
2457 | ||
87578987 DH |
2458 | - Abandoned or dissociated (err condition) leases now remove any related |
2459 | dynamic dns bindings. Thanks to a patch from Patrick Schoo. | |
2460 | ||
e77c575f DH |
2461 | - Attempting to write a new lease file to replace a corrupt (due to |
2462 | encountering non-retryable errors during writing) lease file should | |
2463 | no longer result in an infinite recursion. | |
2464 | ||
2178df03 DH |
2465 | - Host declaration hardware addresses and client identifiers may only be |
2466 | configured once. dhcpd will now fail to load config files that specify | |
2467 | multiple identifiers (previous versions would silently over-ride the | |
2468 | value with the later configured value). | |
2469 | ||
d5341d9b SK |
2470 | - Several option codes that have been allocated since our last release |
2471 | have been named and documented. | |
2472 | ||
2473 | - Option names of the form "unknown-123" have been removed from the in- | |
2474 | memory hash tables. In order to support options of these names that | |
2475 | may appear in dhclient.leases or similar in previous versions, the | |
2476 | parser will now find the new option code definition, or mock up a | |
2477 | generic option code definition. This should result in a smooth | |
2478 | transition from one name to the other, as the new name is used to | |
2479 | write new output. | |
2480 | ||
6da113fb DH |
2481 | Changes since 3.0.4rc1 |
2482 | ||
2483 | - The dhcp-options.5 manpage was updated to correct indentation errors | |
2484 | thanks to a patch from Jean Delvare. | |
2485 | ||
2486 | Changes since 3.0.4b3 | |
2487 | ||
2488 | - Some manual pages were clarified pursuant to discussion on the dhcp-server | |
2489 | mailing list. | |
2490 | ||
88cd8aca DH |
2491 | Changes since 3.0.4b2 |
2492 | ||
45d545f0 | 2493 | - Null-termination sensing for certain clients that unfortunately require |
88cd8aca DH |
2494 | it in DHCPINFORM processing was repaired. |
2495 | ||
2496 | - The host-name option and a few others were moved from "X" format to "t" | |
2497 | format to be compatible with new NULL handling functions. | |
2498 | ||
2499 | - DHCPINFORM processing is a little more careful about return addressing | |
2500 | its responses, or if responding via a relay. The INFORM related | |
2501 | messages also log the 'effective client ip address' rather than the | |
2502 | client's supplied ciaddr (since some clients produce null ciaddrs). | |
2503 | ||
2504 | - The server was inappropriately sending leases to the RESET state in the | |
2505 | event that multiple active leases were found to match a singly-identified | |
2506 | client. This was changed to RELEASED (by accepting a different, ACTIVE | |
2507 | binding, the client is implicitly releasing its lease). This repairs a | |
2508 | bug wherein secondary servers in failover pairs detecting this condition | |
2509 | move leases to RESET, and primaries refuse to accept that state | |
2510 | transition (properly). | |
2511 | ||
2512 | - The memset-after-dmalloc() changes made in 3.0.4b1 have been backed out. | |
2513 | ||
2514 | Changes since 3.0.4b1 | |
2515 | ||
2516 | - Command line parsing in omshell was repaired - it no longer closes | |
2517 | STDIN after reading one line. | |
2518 | ||
2519 | - The resolver library no longer closes the /etc/resolv.conf file | |
2520 | descriptor it opened twice. | |
2521 | ||
2522 | - Changes to trailing NULL removal in 't' option-atoms has been rethought, | |
2523 | it now includes 'd' (domain name) types, and tries hard not to rewind an | |
2524 | option beyond the start of the text field it is un-terminating. | |
2525 | ||
2526 | Changes since 3.0.3 | |
2527 | ||
2528 | - A DDNS update handling function was misusing the DNS error codes, rather | |
2529 | than the internal generic result enumeration. The result is a confusing | |
2530 | syslog line, logging the wrong condition. | |
2531 | ||
2532 | - The DHCP Server was not checking pool balance in the case where it brought | |
2533 | a non-ACTIVE lease out of storage for a client that was returning to use | |
2534 | a lease it once had long ago, and had since expired. | |
2535 | ||
2536 | - Failover peers no longer bother to look for free leases to allocate when | |
2537 | they already found the client's ACTIVE lease. DISCOVERs are load balanced | |
98bd7ca0 | 2538 | whether freely-allocated or not, unless the server doubts the peer has |
88cd8aca DH |
2539 | leases to allocate. |
2540 | ||
2541 | - Fixed a bug in dhcrelay agent addition code that suppressed trailing | |
45d545f0 | 2542 | PAD options - it was suppressing only one trailing PAD option, rather |
88cd8aca DH |
2543 | than the entire block of them. |
2544 | ||
3a16098f DH |
2545 | ! Fixed some unlikely overlapping-region memcpy() bugs in dhcrelay agent |
2546 | option addition and stripping code. Added a few sanity checks. Although | |
2547 | highly improbable, due to requiring the reception of a DHCP datagram well | |
2548 | in excess of all known to be used physical MTU limitations, it is possible | |
2549 | this may have been used in a stack overflow security vulnerability. Thanks | |
2550 | to a patch from infamous42md. | |
2551 | ||
2552 | ! Added some sanity checks to OMAPI connection/authentication code. | |
2553 | Although highly improbable, due to having to deliver in excess of 2^32 | |
2554 | bytes of data via the OMAPI channel, not to mention requiring dhcpd to | |
2555 | be able to malloc() a memory region 2^32 bytes in size, it was possible | |
2556 | this might have resulted in a heap overflow security vulnerability. | |
2557 | Thanks to a patch from infamous42md. | |
88cd8aca DH |
2558 | |
2559 | - dmalloc() memset()'s the non-debug (data) portion of the allocated | |
2560 | memory to zero. Code that memset()'s the result returned by dmalloc() to | |
2561 | zero is redundant. These redundancies were removed. | |
2562 | ||
2563 | - Some type declaration corrections to u_int16_t were made in common/tr.c | |
4b97eaff | 2564 | (Token Ring support) thanks to a patch from Jason Vas Dias at Red Hat. |
88cd8aca DH |
2565 | |
2566 | - A failover bug that was allowing leases that EXPIRED or were RELEASED | |
2567 | where tsfp and tstp are identical timestamps to languish in these | |
2568 | transitional states has been repaired. As a side effect, lease | |
2569 | databases should be kept more consistent overall, not just for these | |
2570 | transitional states. | |
2571 | ||
2572 | - If the lease db is deleted out from under the daemon, and it moves to rewrite | |
2573 | the db, it will go ahead with the operation and move the new db into place | |
2574 | once it detects the old db does not exist. | |
2575 | ||
2576 | - dhclient now ignores IRDA, SIT, and IEEE1394 network interfaces, as it | |
2577 | is either nonsensical or (in the case of IEEE1394) is not known to support | |
2578 | these interfaces. Thanks to Marius Gedminas and Andrew Pollock of Debian. | |
2579 | ||
2580 | - Some previously undocumented reasons for dhclient-script invoking has | |
45d545f0 | 2581 | been documented in the dhclient-script.8 manpage. |
88cd8aca DH |
2582 | |
2583 | - Failover potential expiry calculations (TSTP) have been corrected. Results | |
2584 | should be substantially more consistent, and proper given the constraints. | |
2585 | ||
2586 | - Adjusted lease state validation checks in potential-conflict, to | |
2587 | account for possible clock skew similarly to normal state, and several | |
2588 | previously illegal transitions were made legal (ex: active->released). | |
2589 | ||
2590 | - An impossible sanity check was removed from omapi/buffer.c, thanks to a | |
2591 | patch from 'infamous42md'. | |
2592 | ||
2593 | - An OMAPI host/network byte order problem in lease time values has been | |
2594 | repaired. | |
2595 | ||
2596 | - Several minor bugs, largely relating to treating 8-byte time values as | |
2597 | 4-byte entities, have been repaired after careful review of the FreeBSD | |
2598 | ports collection's patch set. Thanks to the nameless entities who have | |
2599 | contributed to the FreeBSD ports. | |
2600 | ||
2601 | - When writing a trace file, the file is now created with permissions 0600, | |
2602 | to help administrators avoid accidentally publicising sensitive config | |
2603 | data. | |
2604 | ||
2605 | - The calculation of the maximum size of DHCP packets no longer includes | |
2606 | Ethernet framing overhead. The result is that the 'Maximum Message | |
2607 | Size' option advertised by clients, or the default value 576, is no | |
2608 | longer reduced by 14 bytes, and instead directly reflects the IP level | |
2609 | MTU (and the default, minimum allowed IP MTU of 576). | |
2610 | ||
2611 | - The special status of RELEASED/EXPIRED/RESET leases when a server | |
2612 | is operating in partner-down was fixed. It no longer requires a | |
2613 | lease be twice the MCLT beyond STOS to 'reallocate', and the expiry | |
2614 | event to turn these into FREE leases without peer acknowledgement | |
2615 | (after STOS+MCLT) has been repaired. | |
2616 | ||
2617 | - Compilation on older Solaris systems (lacking /usr/include/sys/int_types.h) | |
2618 | has been repaired. | |
2619 | ||
2620 | - "append"ing a string onto the end of a "t" type option (such as the | |
2621 | domain-name field) that had been improperly NULL-terminated by the | |
2622 | DHCP server will no longer result in a truncated string containing | |
2623 | only the option from the server, and not the expected appended value. | |
4b97eaff | 2624 | Thanks to a patch from Jason Vas Dias at Red Hat. |
88cd8aca DH |
2625 | |
2626 | - File handlers on configuration state (config files and lease dbs) should | |
98bd7ca0 | 2627 | be treated consistently, regardless of whether TRACING is defined or not. |
88cd8aca | 2628 | |
45d545f0 | 2629 | - The Linux build environment has had some minor improvements - better |
88cd8aca DH |
2630 | sensing of 64-bit pointer sizes (only used for establishing an icmp_id), |
2631 | and corrections to #if operators regarding LINUX_MAJOR should it ever | |
2632 | move to 3.[01].x. | |
2633 | ||
2634 | - The server now tries harder to survive the condition where it is unable | |
2635 | to open a new lease file to rewrite the lease state database. | |
2636 | ||
c75473d8 DH |
2637 | Changes since 3.0.3b3 |
2638 | ||
2639 | - dhclient.conf documentation for interface {} was updated to reflect recent | |
2640 | discussion on the dhcp-hackers mailing list. | |
2641 | ||
2642 | - In response to reports that the software does not compile on GCC 4.0.0, | |
2643 | -Werror was removed from Makefile.conf for all platforms that used it. | |
2644 | We will address the true problem in a future release; this is a temporary | |
2645 | workaround. | |
2646 | ||
2647 | Changes since 3.0.3b2 | |
2648 | ||
2649 | - An error in code changes introduced in 3.0.3b2 was corrected, which caused | |
2650 | static BOOTP clients to receive random addresses. | |
2651 | ||
2652 | Changes since 3.0.3b1 | |
2653 | ||
2654 | - A bug was fixed in BOOTPREQUEST handling code wherein stale references to | |
2655 | host records would be left behind on leases that were not allocated to the | |
2656 | client currently booting (eg in the case where the host was denied booting). | |
2657 | ||
2658 | - The dhcpd.conf.5 manpage was updated to be more clear in regards to | |
2659 | multiple host declarations (thanks to Vincent McIntyre). 'Interim' style | |
2660 | dynamic updates were also retouched. | |
2661 | ||
98311e4b DH |
2662 | Changes since 3.0.2 |
2663 | ||
2664 | - A bug was fixed where a server might load balance a DHCP REQUEST to its | |
45d545f0 | 2665 | peer after already choosing not to load balance the preceding DISCOVER. |
98311e4b DH |
2666 | The peer cannot allocate the originating server's lease. |
2667 | ||
2668 | - In the case where a secondary server lost its stable storage while the | |
2669 | primary was still in communications-interrupted, and came back online, | |
2670 | the lease databases would not be fully transferred to the secondary. | |
2671 | This was due to the secondary errantly sending an extra UPDREQ message | |
2672 | when the primary made its state transition to PARTNER-DOWN known. | |
2673 | ||
2674 | - The package will now compile cleanly in gcc 3.3 and 3.4. As a side effect, | |
2675 | lease structures will be 9 bytes smaller on all platforms. Thanks to | |
4b97eaff | 2676 | Jason Vas Dias at Red Hat. |
98311e4b DH |
2677 | |
2678 | - Interface discovery code in DISCOVER_UNCONFIGURED mode is now | |
2679 | properly restricted to only detecting broadcast interfaces. Thanks | |
4b97eaff | 2680 | to a patch from Jason Vas Dias at Red Hat. |
98311e4b DH |
2681 | |
2682 | - decode_udp_ip_header was changed so that the IP address was copied out | |
2683 | to a variable, rather than referenced by a pointer. This enforces 4-byte | |
2684 | alignment of the 32-bit IP address value. Thanks to a patch from Dr. | |
2685 | Peter Poeml. | |
2686 | ||
2687 | - An incorrect log message was corrected thanks to a patch from | |
2688 | Dr. Peter Poeml. | |
2689 | ||
2690 | - A bug in DDNS was repaired, where if the server's first DDNS action was | |
2691 | a DDNS removal rather than a DDNS update, the resolver library's | |
2692 | retransmit timer and retry timer was set to the default, implying a | |
2693 | 15 second timeout interval. Which is a little excessive in a synchronous, | |
2694 | single-threaded system. In all cases, ISC DHCP should now hold fast to | |
2695 | a 1-second timeout, trying only once. | |
2696 | ||
2697 | - The siaddr field was being improperly set to the server-identifier when | |
2698 | responding to DHCP messages. RFC2131 clarified the siaddr field as | |
2699 | meaning the 'next server in the bootstrap process', eg a tftp server. | |
2700 | The siaddr field is now left zeroed unless next-server is configured. | |
2701 | ||
2702 | - mockup_lease() could have returned in an error condition (or in the | |
2703 | condition where no fixed-address was found matching the shared | |
2704 | network) with stale references to a host record. This is probably not | |
2705 | a memory leak since host records generally never die anyway. | |
2706 | ||
2707 | - A bug was repaired where failover servers would let stale client identifiers | |
2708 | persist on leases that were reallocated to new clients not sending an id. | |
2709 | ||
2710 | - Binding scopes ("set var = value;") are now removed from leases allocated | |
2711 | by failover peers if the lease had expired. This should help reduce the | |
2712 | number of stale binding scopes on leases. | |
2713 | ||
2714 | - A small memory leak was closed involving client identifiers larger than | |
2715 | 7 bytes, and failover. | |
2716 | ||
2717 | - Configuring a subnet in dhcpd.conf with a subnet mask of 32 bits might | |
2718 | cause an internal function to overflow heap. Thanks to Jason Vas Dias | |
4b97eaff | 2719 | at Red Hat. |
98311e4b DH |
2720 | |
2721 | - Some inconsistencies in treating numbers that the lexer parsed as 'NUMBER' | |
2722 | or 'NUMBER_OR_NAME' was repaired. Hexadecimal parsing is affected, and | |
2723 | should work better. | |
2724 | ||
2725 | - In several cases, parse warnings were being issued before the lexical | |
2726 | token had been advanced to the token whose value was causing an error... | |
2727 | causing parse warnings to claim the problem is on the wrong token. | |
2728 | ||
2729 | - Host declarations matching on client identifier for dynamic leases will | |
2730 | no longer match fixed-address host declarations (this is now identical | |
2731 | to behaviour for host records matching on hardware address). | |
2732 | ||
2733 | Changes since 3.0.2rc3 | |
2734 | ||
2735 | - A previously undocumented configuration directive, 'local-address', | |
2736 | was documented in the dhcpd.conf manpage. | |
2737 | ||
2738 | Changes since 3.0.2rc2 | |
2739 | ||
45d545f0 | 2740 | - Two variables introduced in 3.0.2b1 were used without being initialized |
98311e4b DH |
2741 | in the case where neither the FILE nor SNAME fields were available for |
2742 | overloading. This was repaired. | |
2743 | ||
2744 | - A heretofore believed to be impossible corner case of the option | |
2745 | overloading implementation turned out to be possible ("Unable to sort | |
2746 | overloaded options after 10 tries."). The implementation was reworked | |
2747 | to consider the case of an option so large it would require more than | |
2748 | three chunks to fit. | |
2749 | ||
2750 | - Many other instances of variables being used without being initialized | |
2751 | were repaired. | |
2752 | ||
2753 | - An uninitialized variable in omapi_io_destroy() led to the discovery | |
2754 | that this function may result in orphaned pointers (and hence, a memory | |
2755 | leak). | |
2756 | ||
2757 | Changes since 3.0.2rc1 | |
2758 | ||
2759 | - allocate_lease() was rewritten to repair a bug in which the server would | |
2760 | try to allocate an ABANDONED lease when FREE leases were available. | |
2761 | ||
2762 | Changes since 3.0.2b1 | |
2763 | ||
2764 | - Some dhcp-eval.5 manpage formatting was repaired. | |
2765 | ||
2766 | Changes since 3.0.1 | |
2767 | ||
2768 | - A bug was fixed in the server's 'option overloading' implementation, | |
2769 | where options loaded into the 'file' and 'sname' packet fields were | |
2770 | not aligned precisely as rfc2131 dictates. | |
2771 | ||
2772 | - The FreeBSD client script was changed to support the case where a domain | |
2773 | name was not provided by the server. | |
2774 | ||
2775 | - A memory leak in 'omshell' per each command line parsed was | |
2776 | repaired, thanks to a patch from Jarkko Torppa. | |
2777 | ||
2778 | - Log functions writing to stderr were adjusted to use the STDERR_FILENO | |
2779 | system definition rather than '2'. This is a no-op for 90% of platforms. | |
2780 | ||
2781 | - One call to trace_write_packet_iov() counted the number of io vectors | |
2782 | incorrectly, causing inconsistent tracefiles. This was fixed. | |
2783 | ||
2784 | - Some expression parse failure memory leaks were closed. | |
2785 | ||
2786 | - A host byte order problem in tracefiles was repaired. | |
2787 | ||
2788 | - Pools configured in DHCPD for failover possessing permission lists that | |
adb95d23 | 2789 | previously were assumed to not include dynamic bootp clients are now |
98311e4b DH |
2790 | a little more pessimistic. The result is, dhcpd will nag you about just |
2791 | about most pools that possess a 'allow' statement with no 'deny' that | |
2792 | would definitely match a dynamic bootp client. | |
2793 | ||
2794 | - The 'ddns-update-style' configuration warning bit now insists that | |
2795 | the configuration be globally scoped. | |
2796 | ||
2797 | - Two memory leaks in dhclient were closed thanks to a patch from Felix | |
2798 | Farkas. | |
2799 | ||
2800 | - Some minor but excellently pedantic documentation errors were fixed | |
2801 | thanks to a patch from Thomas Klausner. | |
2802 | ||
2803 | - Bugs in operator precedence in executable statements have been repaired | |
2804 | once again. More legal syntaxes should be parsed legally. | |
2805 | ||
2806 | - Failing to initialize a tracefile for any reason if a tracefile was | |
2807 | specified is now a fatal error. Thanks to a patch from Albert Herranz. | |
2808 | ||
2809 | - Corrected a bug in which the number of leases transferred as calculated | |
2810 | by the failover primary and sent to peers in POOLRESP responses may be | |
2811 | incorrect. This value is not believed to be used by other failover | |
2812 | implementations, excepting perhaps as logged information. | |
2813 | ||
2814 | - Corrected a bug in which 'dhcp_failover_send_poolresp()' was in fact | |
2815 | sending POOLREQ messages instead of POOLRESP mesasges. This message | |
2816 | was essentially ignored since failover secondaries effectively do not | |
2817 | respond to POOLREQ messages. | |
2818 | ||
2819 | - Type definitions for various bitwidths of integers in the sunos5-5 | |
2820 | build of ISC DHCP have been fixed. It should compile and run more | |
2821 | easily when built in 64-bit for this platform. | |
2822 | ||
2823 | - "allow known-clients;" is now a legal syntax, to avoid confusion. | |
2824 | ||
2825 | - If one dhcp server chooses to 'load balance' a request to its failover | |
2826 | peer, it first checks to see if it believes said peer has a free | |
2827 | lease to allocate before ignoring the DISCOVER. | |
2828 | ||
2829 | - log() was logging a work buffer, rather than the value returned by | |
2830 | executing the statements configured by the user. In some cases, | |
2831 | the work buffer and the intended results were the same. In some other | |
2832 | cases, they were not. This was fixed thanks to a patch from Gunnar | |
2833 | Fjone and directconnect.no. | |
2834 | ||
2835 | - Compiler warnings for some string type conversions was fixed, thanks | |
2836 | to Andreas Gustafsson. | |
2837 | ||
2838 | - The netbsd build environments were simplified to one, in which | |
2839 | -Wconversion is not used, thanks to Andreas Gustafsson. | |
2840 | ||
2841 | - How randomness in the backoff-cutoff dhclient configuration variable | |
2842 | is implemented was better documented in the manpage, and the behaviour | |
2843 | of dhclient in REQUEST timeout handling was changed to match that of | |
2844 | DISCOVER timeout handling. | |
2845 | ||
2846 | - Omapi was hardened against clients that pass in null values, thanks | |
2847 | to a patch from Mark Jason Dominus. | |
2848 | ||
2849 | - A bug was fixed in dhclient that kept it from doing client-side | |
2850 | ddns updates. Thanks to a patch from Andreas Gustafsson, which | |
2851 | underwent some modification after review by Jason Vas Dias. | |
2852 | ||
2853 | - Failover implementations disconnected due to the network between | |
2854 | them (rather than one of the two shutting down) will now try to | |
2855 | re-establish the failover connection every 5 seconds, rather than | |
2856 | to simply try once and give up until one of them is restarted. | |
2857 | Thanks to a patch from Ulf Ekberg from Infoblox, and field testing | |
2858 | by Greger V. Teigre which led to an enhancement to it. | |
2859 | ||
2860 | - A problem that kept DHCP Failover secondaries from tearing down | |
2861 | ddns records was repaired. Thanks to a patch from Ulf Ekberg from | |
2862 | Infoblox. | |
2863 | ||
2864 | - 64bit pointer sizes are detected properly on FreeBSD now. | |
2865 | ||
2866 | - A bug was repaired where the DHCP server would leave stale references | |
2867 | to host records on leases it once thought about offering to certain | |
2868 | clients. The result would be to apply host and 'known' scopes to the | |
2869 | wrong clients (possibly denying booting). NOTE: The 'mis-host' patch | |
2870 | that was being circulated as a workaround is not the way this bug was | |
2871 | fixed. If you were a victim of this bug in 3.0.1, you are cautioned | |
2872 | to proceed carefully and see if it fixes your problem. | |
2873 | ||
2874 | - A bug was repaired in the server's DHCPINFORM handling, where it | |
2875 | tried to divine the client's address from the source packet and | |
2876 | would get it wrong. Thanks to Anshuman Singh Rawat. | |
2877 | ||
2878 | - A log message was introduced to help illuminate the case where the | |
2879 | server was unable to find a lease to assign to any BOOTP client. | |
2880 | Thanks to Daniel Baker. | |
2881 | ||
2882 | - A minor dhcpd.conf.5 manpage error was fixed. | |
2883 | ||
2884 | Changes since 3.0.1rc14 | |
2885 | ||
2886 | - The global variable 'cur_time' was centralized and is now uniformly of a | |
2887 | type #defined in system-dependent headers. It had previously been defined | |
2888 | in one of many places as a 32-bit value, and this causes mayhem on 64-bit | |
2889 | big endian systems. It probably wasn't too healthy on little endian | |
2890 | systems either. | |
2891 | ||
2892 | - A printf format string error introduced in rc14 was repaired. | |
2893 | ||
2894 | - AIX system-dependent header file was altered to only define NO_SNPRINTF | |
2895 | if the condition used to #ifdef in vsnprintf in AIX' header files | |
2896 | is false. | |
2897 | ||
2898 | - The Alpha/OSF system-dependent header file was altered to define | |
2899 | NO_SNPRINTF on OS revisions older than 4.0G. | |
2900 | ||
2901 | - omapip/test.c had string.h added to its includes. | |
2902 | ||
2903 | Changes since 3.0.1rc13 | |
2904 | ||
2905 | ! CAN-2004-0460 - CERT VU#317350: Five stack overflow exploits were closed | |
2906 | in logging messages with excessively long hostnames provided by the | |
2907 | clients. It is highly probable that these could have been used by | |
2908 | attackers to gain arbitrary root access on systems using ISC DHCP 3.0.1 | |
2909 | release candidates 12 or 13. Special thanks to Gregory Duchemin for | |
2910 | both finding and solving the problem. | |
2911 | ||
2912 | ! CAN-2004-0461 - CERT VU#654390: Once the above was closed, an opening | |
45d545f0 | 2913 | in log_*() functions was evidenced, on some specific platforms where |
98311e4b DH |
2914 | vsnprintf() was not believed to be available and calls were wrapped to |
2915 | sprintf() instead. Again, credit goes to Gregory Duchemin for finding | |
2916 | the problem. Calls to snprintf() are now linked to a distribution-local | |
2917 | snprintf implementation, only in those cases where the architecture is | |
2918 | not known to provide one (see includes/cf/[arch].h). If you experience | |
2919 | linking problems with snprintf/vsnprintf or 'isc_print_' functions, this | |
2920 | is where to look. This vulnerability did not exist in any previously | |
2921 | published version of ISC DHCP. | |
2922 | ||
2923 | - Compilation on hpux 11.11 was repaired. | |
2924 | ||
2925 | - 'The cross-compile bug fix' was backed out. | |
2926 | ||
2927 | Changes since 3.0.1rc12 | |
2928 | ||
2929 | - Fixed a bug in omapi lease lookup function, to form the hardware | |
2930 | address for the hash lookup correctly, thanks to a patch from | |
2931 | Richard Hirst. | |
2932 | ||
2933 | - Fixed a bug where dhcrelay was sending relayed responses back to the | |
2934 | broadcast address, but with the source's unicast mac address. Should | |
2935 | now conform to rfc2131 section 4.1. | |
2936 | ||
2937 | - Cross-compile bug fix; use $(AR) instead of ar. Thanks to Morten Brorup. | |
2938 | ||
2939 | - Fixed a crash bug in dhclient where dhcpd servers that do not provide | |
2940 | renewal times results in an FPE. As a side effect, dhclient can now | |
2941 | properly handle 0xFFFFFFFF (-1) expiry times supplied by servers. Thanks | |
2942 | to a patch from Burt Silverman. | |
2943 | ||
2944 | - The 'ping timeout' debugs from rc12 were removed to -DDEBUG only, | |
45d545f0 | 2945 | and reformatted to correct a compilation error on Solaris platforms. |
98311e4b DH |
2946 | |
2947 | - A patch was applied which fixes a case where leases read from the | |
2948 | leases database do not properly over-ride previously read leases. | |
2949 | ||
2950 | - dhcpctl.3 manpage was tweaked. | |
2951 | ||
2952 | Changes since 3.0.1rc11 | |
2953 | ||
2954 | - A patch from Steve Campbell was applied with minor modifications to | |
2955 | permit reverse dns PTR record updates with values containing spaces. | |
2956 | ||
2957 | - A patch from Florian Lohoff was applied with some modifications to | |
2958 | dhcrelay. It now discards packets whose hop count exceeds 10 by default, | |
2959 | and a command-line option (-c) can be used to set this threshold. | |
2960 | ||
2961 | - A failover bug relating to identifying peers by name length instead of | |
2962 | by name was fixed. | |
2963 | ||
45d545f0 | 2964 | - Declaring failover configs within shared-network statements should no |
98311e4b DH |
2965 | longer result in error. |
2966 | ||
2967 | - The -nw command line option to dhclient now works. | |
2968 | ||
2969 | - Thanks to a patch from Michael Richardson: | |
2970 | - Some problems with long option processing have been fixed. | |
2971 | - Some fixes to minires so that updates of KEY records will work. | |
2972 | ||
2973 | - contrib/ms2isc was updated by Shu-Min Chang of the Intel Corporation. | |
2974 | see contrib/ms2isc/readme.txt for revision notes. | |
2975 | ||
2976 | - Dhclient no longer uses shell commands to kill another instance of | |
2977 | itself, it sends the signal directly. Thanks to a patch from Martin | |
2978 | Blapp. | |
2979 | ||
2980 | - The FreeBSD dhclient-script was changed so that a failure to write to | |
2981 | /etc/resolv.conf does not prematurely end the script. This keeps dhclient | |
2982 | from looping infinitely when this is the case. Thanks to a patch from | |
2983 | Martin Blapp. | |
2984 | ||
2985 | - A patch from Bill Stephens was applied which resolves a problem with lease | |
2986 | expiry times in failover configurations. | |
2987 | ||
2988 | - A memory leak in configuration parsing was closed thanks to a patch from | |
2989 | Steve G. | |
2990 | ||
2991 | - The function which discovers interfaces will now skip non-broadcast or | |
2992 | point-to-point interfaces, thanks to a patch from David Brownlee. | |
2993 | ||
2994 | - Options not yet known by the dhcpd or dhclient have had their names | |
2995 | changed such that they do not contain # symbols, in case they should ever | |
2996 | appear in a lease file. An option that might have been named "#144" is | |
2997 | now "unknown-144". | |
2998 | ||
2999 | - Another patch from Bill Stephens which allows the ping-check timeout to | |
3000 | be configured as 'ping-timeout'. Defaults to 1. | |
3001 | ||
3002 | Changes since 3.0.1rc10 | |
3003 | ||
3004 | - Potential buffer overflows in minires repaired. | |
3005 | ||
3006 | - A change to the linux client script to use /bin/bash, since /bin/sh may | |
3007 | not be bash. | |
3008 | ||
3009 | - Some missing va_end cleanups thanks to a patch from Thomas Klausner. | |
3010 | ||
3011 | - A correction of boolean parsing syntax validation - some illegal syntaxes | |
3012 | that worked before are now detected and produce errs, some legal syntaxes | |
3013 | that errored before will now work properly. | |
3014 | ||
3015 | - Some search-and-replace errors that caused some options to change their | |
3016 | names was repaired. | |
3017 | ||
3018 | - Shu-min Chang of the Intel corporation has contributed a perl script and | |
3019 | module that converts the MS NT4 DHCP configuration to a ISC DHCP3 | |
3020 | configuration file. | |
3021 | ||
3022 | - Applied the remainder of the dhcpctl memory leak patch provided by Bill | |
3023 | Squier at ReefEdge, Inc. (groo@reefedge.com). | |
3024 | ||
3025 | - Missing non-optional failover peer configurations will now result in a soft | |
3026 | error rather than a null dereference. | |
3027 | ||
3028 | Changes since 3.0.1rc9 | |
3029 | ||
3030 | - A format string was corrected to fix compiler warnings. | |
3031 | ||
3032 | - A number of spelling corrections were made in the man pages. | |
3033 | ||
3034 | - The dhclient.conf.5 man page was changed to refer to do-forward-updates | |
3035 | rather than a configuration option that doesn't exist. | |
3036 | ||
3037 | - A FreeBSD-specific bug in the interface removal handling was fixed. | |
3038 | ||
3039 | - A Linux-specific Token Ring detection problem was fixed. | |
3040 | ||
3041 | - Hashes removed from as-yet-unknown agent options, having those options | |
3042 | appear in reality before we know about them will no longer produce | |
3043 | self-corrupting lease databases. | |
3044 | ||
3045 | - dhclient will use the proper port numbers now when using the -g option. | |
3046 | ||
3047 | - A order-of-operations bug with 2 match clauses in 1 class statement is | |
3048 | fixed thanks to a patch from Andrew Matheson. | |
3049 | ||
3050 | - Compilation problems on Solaris were fixed. | |
3051 | ||
3052 | - Compilation problems when built with DEBUG or DEBUG_PACKET were repaired. | |
3053 | ||
3054 | - A fix to the dhcp ack process which makes certain group options will be | |
3055 | included in the first DHCPOFFER message was made thanks to a patch from | |
3056 | Ling Gou. | |
3057 | ||
3058 | - A few memory leaks were repaired thanks to patches from Bill Squier at | |
3059 | ReefEdge, Inc. (groo@reefedge.com). | |
3060 | ||
3061 | - A fix for shared-networks that sometimes give clients options for the | |
3062 | wrong subnets (in particular, 'option routers') was applied, thanks to | |
3063 | Ted Lemon for the patch. | |
3064 | ||
3065 | - Omshell's handling of dotted octets as values was changed such that dots | |
3066 | one after the other produce zero values in the integer string. | |
3067 | ||
3068 | Changes since 3.0.1rc8 | |
3069 | ||
3070 | - Fix a format string vulnerability in the server that could lead to a | |
3071 | remote root compromise (discovered by NGSEC Research Team, www.ngsec.com). | |
3072 | ||
3073 | - Add additional support for NetBSD/sparc64. | |
3074 | ||
3075 | - Fix a bug in the command-line parsing of the client. Also, resolve | |
3076 | a memory leak. | |
3077 | ||
3078 | - Add better support for shells other than bash in the Linux client | |
3079 | script. | |
3080 | ||
3081 | - Various build fixes for modern versions of FreeBSD and Linux. | |
3082 | ||
3083 | - Fix a bad bounds check when printing binding state names. | |
3084 | ||
3085 | - Clarify documentation about fixed-address and multiple addresses. | |
3086 | ||
3087 | - Fix a typo in the authoritative error message. | |
3088 | ||
3089 | - Make a log entry when we can't write a billing class. | |
3090 | ||
3091 | - Use conversion targets that are the right size on all architectures. | |
3092 | ||
3093 | - Increment the hop count when relaying. | |
3094 | ||
3095 | - Log a message when lease state is changed through OMAPI. | |
3096 | ||
3097 | - Don't rerun the shared_network when evaluating the pool. | |
3098 | ||
3099 | - Fix a reversed test in the parser. | |
3100 | ||
3101 | - Change the type of rbuf_max. | |
3102 | ||
3103 | - Make FTS_LAST a manifest constant to quiet warnings. | |
3104 | ||
3105 | Changes since 3.0.1rc7 | |
3106 | ||
3107 | - Fix two compiler warnings that are generated when compiling on Solaris | |
3108 | with gcc. These stop the build, even though they weren't actually | |
3109 | errors, because we prefer that our builds generate no warnings. | |
3110 | ||
3111 | Changes since 3.0.1rc6 | |
3112 | ||
3113 | - Don't allow a lease that's in the EXPIRED, RELEASED or RESET state | |
3114 | to be renewed. | |
3115 | ||
3116 | - Implement lease stealing for cases where the primary has fewer leases | |
3117 | than the secondary, as called for by the standard. | |
3118 | ||
3119 | - Add a fudge factor to the lease expiry acceptance code, (suggested | |
3120 | by Kevin Miller of CMU). | |
3121 | ||
3122 | - Fix a bug in permit_list_match that made it much too willing to say | |
3123 | that two permit lists matched. | |
3124 | ||
3125 | - Unless DEBUG_DNS_UPDATES is defined, print more user-friendly (and | |
3126 | also more compact) messages about DNS updates. | |
3127 | ||
3128 | - Fix a bug in generating wire-format domain names for the FQDN option. | |
3129 | ||
3130 | - Fix a bug where the FQDN option would not be returned if the client | |
3131 | requested it, contrary to the standard. | |
3132 | ||
3133 | - On Darwin, use the FreeBSD DHCP client script. | |
3134 | ||
3135 | - On NetBSD/sparc, don't check for casting warnings. | |
3136 | ||
3137 | - Add a flag in the DHCP client to disable updating the client's A | |
3138 | record when sending an FQDN option indicating that the client is | |
3139 | going to update its A record. | |
3140 | ||
3141 | - In the client, don't attempt a DNS update until one second after | |
3142 | configuring the new IP address, and if the update times out, keep | |
3143 | trying until a response, positive or negative, is received from the | |
3144 | DNS server. | |
3145 | ||
3146 | - Fix an uninitialized memory bug in the DHCP client. | |
3147 | ||
3148 | - Apply some FreeBSD-specific bug fixes suggested by Murray Stokely. | |
3149 | ||
3150 | - Fix a bug in ns_parserr(), where it was returning the wrong sort | |
3151 | of result code in some cases (suggested by Ben Harris of the | |
3152 | NetBSD project). | |
3153 | ||
3154 | - Fix a bug in is_identifier(), where it was checking against EOF | |
3155 | instead of the END_OF_FILE token (also suggested by Ben Harris). | |
3156 | ||
3157 | - Fix a bug where if an option universe contained no options, the | |
3158 | DHCP server could dump core (Walter Steiner). | |
3159 | ||
3160 | - Fix a bug in the handling of encapsulated options. | |
3161 | ||
3162 | - Fix a bug that prevented NWIP suboptions from being processed. | |
3163 | ||
3164 | - Delete the FTS_BOOTP and FTS_RESERVED states and implement them | |
3165 | as modifier flags to the FTS_ACTIVE state, as called for in the | |
3166 | failover protocol standard. | |
3167 | ||
3168 | - Fix bugs in the pool merging code that resulted in references and | |
3169 | dereferences of null pointers. This bug had no impact unless the | |
3170 | POINTER_DEBUG flag was defined. | |
3171 | ||
3172 | - In the server, added a do-forward-updates flag that can be used to | |
3173 | disable forward updates in all cases, so that sites that want the | |
3174 | clients to take sole responsibility for updating their A record can | |
3175 | do so. | |
3176 | ||
3177 | - Make it possible to disable optimization of PTR record updates. | |
3178 | ||
3179 | Changes since 3.0.1rc5 | |
3180 | ||
3181 | - Include some new documentation and changes provided by Karl Auer. | |
3182 | ||
3183 | - Add a workaround for some Lexmark printers that send a double-NUL- | |
3184 | terminated host-name option, which would break DNS updates. | |
3185 | ||
3186 | - Fix an off-by-one error in the MAC-address checking code for | |
3187 | DHCPRELEASE that was added in 3.0.1rc5. | |
3188 | ||
3189 | - Fix a bug where client-specific information was not being discarded | |
3190 | from the lease when it expired or was released, resulting in | |
3191 | problems if the lease was reallocated to a different client. | |
3192 | ||
3193 | - If more than one allocation pool is specified that has the same set | |
3194 | of constraints as another allocation pool on the same shared | |
3195 | network, merge the two pools. | |
3196 | ||
3197 | - Don't print an error in fallback_discard, since this just causes | |
3198 | confusion and does not appear to be helping to encourage anyone to | |
3199 | fix this bug. | |
3200 | ||
3201 | Changes since 3.0.1rc4 | |
3202 | ||
3203 | - Fix a bug that would cause the DHCP server to spin if asked to parse | |
3204 | a certain kind of incorrect statement. | |
3205 | ||
3206 | - Fix a related bug that would prevent an error from being reported in | |
3207 | the same case. | |
3208 | ||
3209 | - Additional documentation. | |
3210 | ||
3211 | - Make sure that the hardware address matches the lease when | |
3212 | processing a DHCPRELEASE message. | |
3213 | ||
3214 | Changes since 3.0.1rc3 | |
3215 | ||
3216 | - A minor bug fix in the arguments to a logging function call. | |
3217 | - Documentation update for dhcpd.conf. | |
3218 | ||
adbef119 | 3219 | Changes since 3.0.1rc2 |
98311e4b DH |
3220 | |
3221 | - Allow the primary to send a POOLREQ message. This isn't what the current | |
3222 | failover draft says to do, so we may have to back it out if I can't get the | |
3223 | authors to relent, but the scheme for balancing that's specified in the | |
3224 | current draft seems needlessly hairy, so I'm floating a trial balloon. | |
3225 | The rc1 code did not implement the method described in the draft either. | |
3226 | ||
adbef119 | 3227 | Changes since 3.0.1rc1 |
98311e4b DH |
3228 | |
3229 | - Treat NXDOMAIN and NXRRSET as success when we are trying to delete a | |
3230 | domain or RRSET. This allows the DHCP server to forget about a name | |
3231 | it added to the DNS once it's been removed, even if the DHCP server | |
3232 | wasn't the one that removed it. | |
3233 | ||
3234 | - Install defaults for failover maximum outstanding updates and maximum | |
3235 | silent time. This prevents problems that might occur if these values | |
3236 | were not configured. | |
3237 | ||
3238 | - Don't do DDNS deletes if ddns-update-style is none. | |
3239 | ||
3240 | - Return relay agent information options in DHCPNAK. This prevents DHCPNAK | |
3241 | messages from being dropped when the relay agent information option contains | |
3242 | routing information. | |
3243 | ||
3244 | - Fix a problem where coming up in recover wouldn't result in an update | |
3245 | request being sent. | |
3246 | ||
3247 | - Add some more chatty messages when we start a recovery update and when it's | |
3248 | done. | |
3249 | ||
3250 | - Fix a possible problem where some state might have been left around | |
3251 | after the peer lost contact and regained contact about how many updates | |
3252 | were pending. | |
3253 | ||
3254 | - Don't nix a lease update because of a lease conflict. This test has | |
3255 | never (as far as I know) prevented a mistake, and it appears to cause | |
3256 | problems with failover. | |
3257 | ||
3258 | - Add support in rc history code for keeping a selective history, rather | |
3259 | than a history of all references and dereferences. This code is only used | |
3260 | when extensive additional debugging is enabled. | |
3261 | ||
adbef119 | 3262 | Changes since 3.0 |
98311e4b DH |
3263 | |
3264 | - Make allocators for hash tables. As a side effect, this fixes a memory | |
3265 | smash in the subclass allocation code. | |
3266 | ||
3267 | - Fix a small bug in omshell where if you try to close an object when | |
3268 | no object is open, it dumps core. | |
3269 | ||
3270 | - Fix an obscure coredump that could occur on shutdown. | |
3271 | ||
3272 | - Fix a bug in the recording of host declaration rubouts in the lease file. | |
3273 | ||
3274 | - Fix two potential spins in the host deletion code. | |
3275 | ||
3276 | - Fix a core dump that would happen if an application tried to update | |
3277 | a host object attribute with a null value. | |
3278 | ||
3279 | Changes since 3.0 Release Candidate 12 | |
3280 | ||
3281 | - Fix a memory leak in the evaluation code. | |
3282 | ||
3283 | - Fix an obscure core dump. | |
3284 | ||
3285 | - Print a couple of new warnings when parsing the configuration file | |
3286 | when crucial information is left out. | |
3287 | ||
3288 | - Log "no free leases" as an error. | |
3289 | ||
3290 | - Documentation updates. | |
3291 | ||
3292 | Changes since 3.0 Release Candidate 11 | |
3293 | ||
3294 | - Always return a subnet selection option if one is sent. | |
3295 | ||
3296 | - Fix a warning that was being printed because an automatic data | |
3297 | structure wasn't zeroed. | |
3298 | ||
3299 | - Fix some failover state transitions that were being handled | |
3300 | incorrectly. | |
3301 | ||
3302 | - When supersede_lease is called on a lease whose end time has already | |
3303 | expired, but for which a state transition has not yet been done, do | |
3304 | a state transition. This fixes the case where if the secondary | |
3305 | allocated a lease to a client and the lease "expired" while the | |
3306 | secondary was in partner-down, no expiry event would actually | |
3307 | happen, so the lease would remain active until the primary was | |
3308 | restarted. | |
3309 | ||
3310 | Changes since 3.0 Release Candidate 10 | |
3311 | ||
3312 | - Fix a bug that was preventing released leases from changing state | |
3313 | in failover-enabled pools. | |
3314 | ||
3315 | - Fix a core dump in the client identifier finder code (for host | |
3316 | declarations). | |
3317 | ||
3318 | - Finish fixing a bug where bogus data would sometimes get logged to | |
3319 | the dhclient.leases file because it was opened as descriptor 2. | |
3320 | ||
3321 | - Fix the Linux dhclient-script according to suggestions made by | |
3322 | several people on the dhcp-client mailing list. | |
3323 | ||
3324 | - Log successful DNS updates at LOG_INFO, not LOG_ERROR. | |
3325 | ||
3326 | - Print an error message and refuse to run if a failover peer is | |
3327 | defined but not referenced by any pools. | |
3328 | ||
3329 | - Correct a confusing error message in failover. | |
3330 | ||
eaf0b302 TL |
3331 | Changes since 3.0 Release Candidate 9 |
3332 | ||
3333 | - Fix a bug in lease allocation for Dynamic BOOTP clients. | |
3334 | ||
0db87765 TL |
3335 | Changes since 3.0 Release Candidate 8 Patchlevel 2 |
3336 | ||
3337 | - Fix a bug that prevented update-static-leases from working. | |
3338 | ||
3339 | - Document failover-state OMAPI object. | |
3340 | ||
3341 | - Fix a compilation error on SunOS 4. | |
3342 | ||
d758ad8c TL |
3343 | Changes since 3.0 Release Candidate 8 Patchlevel 1 |
3344 | ||
3345 | - Fix a parsing bug that broke dns updates (both interim and ad-hoc). | |
3346 | This was introduced in rc8pl1 as an unintended result of the memory | |
3347 | leakage fixes that were in pl1. | |
3348 | ||
3349 | - Fix a long-standing bug where the server would record that an update | |
3350 | had been done for a client with no name, even though no update had | |
3351 | been done, and then when the client's lease expired the deletion of | |
3352 | that nonexistant record would time out because the name was the null | |
9a111ee8 | 3353 | string. |
d758ad8c TL |
3354 | |
3355 | - Clean up the omshell, dhcpctl and omapi man pages a bit. | |
3356 | ||
d758ad8c TL |
3357 | Changes since 3.0 Release Candidate 8 |
3358 | ||
3359 | - Fix a bug that could cause the DHCP server to spin if | |
3360 | one-lease-per-client was enabled. | |
3361 | ||
3362 | - Fix a bug that was causing core dumps on BSD/os in the presence of | |
3363 | malformed packets. | |
3364 | ||
3365 | - In partner-down state, don't restrict lease lengths to MCLT. | |
3366 | ||
3367 | - On the failover secondary, record the MCLT received from the primary | |
3368 | so that if we come up without a connection to the primary we don't | |
3369 | wind up giving out zero-length leases. | |
3370 | ||
3371 | - Fix some compilation problems on BSD/os. | |
3372 | ||
3373 | - Fix a bunch of memory leaks. | |
3374 | ||
3375 | - Fix a couple of bugs in the option printer. | |
3376 | ||
3377 | - Fix an obscure error reporting bug in the dns update code, and also | |
3378 | make the message clearer when a key algorithm isn't supported. | |
3379 | ||
3380 | - Fix a bug in the tracing code that prevented trace runs that used | |
3381 | tcp connections from being played back. | |
3382 | ||
3383 | - Add some additional debugging capability for catching memory leaks | |
3384 | on exit. | |
3385 | ||
3386 | - Make the client release the lease correctly on shutdown. | |
3387 | ||
3388 | - Add some configurability to the build system. | |
3389 | ||
3390 | - Install omshell manual page in man1, not man8. | |
3391 | ||
3392 | - Craig Gwydir sent in a patch that fixes a long-standing bug in the | |
3393 | DHCP client that could cause core dumps, but that for some reason | |
3394 | hadn't been noticed until now. | |
3395 | ||
3396 | Changes since 3.0 Release Candidate 7 | |
3397 | ||
3398 | - Fix a bug in failover where we weren't sending updates after a | |
3399 | transition from communications-interrupted to normal. | |
3400 | ||
3401 | - Handle expired/released/reset -> free transition according to the | |
3402 | protocol specification (this works - the other way not only wasn't | |
3403 | conformant, but also didn't work). | |
3404 | ||
3405 | - Add a control object in both client and server that allows either | |
3406 | daemon to be shut down cleanly. | |
3407 | ||
3408 | - When writing a lease, if we run out of disk space, shut down the | |
3409 | output file and insist on writing a new one before proceeding. | |
3410 | ||
3411 | - In the server, if the OMAPI listener port is occupied, keep trying | |
3412 | to get it, rather than simply giving up and exiting. | |
3413 | ||
3414 | - Support fetching variables from leases and also updating and adding | |
3415 | variables to leases via OMAPI. | |
3416 | ||
3417 | - If two failover peers have wildly different clocks, refuse to start | |
3418 | doing failover. | |
3419 | ||
3420 | - Fix a bug in the DNS update code that could cause core dumps when | |
3421 | running on alpha processors. | |
3422 | ||
3423 | - Fixed a bug in ddns updates for static lease entries, thanks to a | |
3424 | patch from Andrey M Linkevitch. | |
3425 | ||
3426 | - Add support for Darwin/MacOS X | |
3427 | ||
3428 | - Install omshell (including new documentation). | |
3429 | ||
3430 | - Support DNS updates in the client (this is a very obscure feature | |
3431 | that most DHCP client users probably will not be able to use). | |
3432 | ||
3433 | - Somewhat cleaner status logging in the client. | |
3434 | ||
3435 | - Make OMAPI key naming syntax compatible with the way keys are | |
3436 | actually named (key names are domain names). | |
3437 | ||
3438 | - Fix a bug in the lease file writer. | |
3439 | ||
3440 | - Install DHCP ISC headers in a different place than BIND 9 ISC | |
3441 | headers, to avoid causing trouble in BIND 9 builds. | |
3442 | ||
3443 | - Don't send updates for attributes on an object when the attributes | |
3444 | haven't changed. Support deleting attributes on remote objects. | |
3445 | ||
3446 | - Fix a number of bugs in omshell, and add the unset and refresh | |
3447 | statements. | |
3448 | ||
3449 | - Handle disconnects in OMAPI a little bit more intelligently (so that | |
3450 | the caller gets ECONNRESET instead of EINVAL). | |
3451 | ||
3452 | - Fix a bunch of bugs in the handling of clients that have existing | |
3453 | leases when the try to renew their leases while failover is | |
3454 | operating. | |
3455 | ||
eaf0b302 TL |
3456 | Changes since 3.0 Release Candidate 6 |
3457 | ||
3458 | - Fix a core dump that could happen when processing a DHCPREQUEST from | |
3459 | a client that had a host declaration that contained both a | |
3460 | fixed-address declaration and a dhcp-client-identifier option | |
3461 | declaration, if the client identifier was longer than nine bytes. | |
3462 | ||
3463 | - Fix a memory leak that could happen in certain obscure cases when | |
3464 | using omapi to manipulate leases. | |
3465 | ||
3466 | - Fix some bugs and omissions in omshell. | |
3467 | ||
eaf0b302 TL |
3468 | Changes since 3.0 Release Candidate 5 |
3469 | ||
3470 | - Fix a bug in omapi_object_dereference that prevented objects in | |
3471 | chains from having their reference counts decreased on dereference. | |
3472 | ||
3473 | - Fix a bug in omapi_object_dereference that would prevent object | |
3474 | chains from being freed upon removal of the last reference external | |
3475 | to the chain. | |
3476 | ||
3477 | - Fix a number of other memory leaks in the OMAPI protocol subsystem. | |
3478 | ||
3479 | - Add code in the OMAPI protocol handler to trace memory leakage. | |
3480 | ||
3481 | - Clean up the memory allocation/reference history printer. | |
3482 | ||
98311e4b | 3483 | - Support input of dotted quads and colon-separated hex lists as |
eaf0b302 TL |
3484 | attribute values in omshell. |
3485 | ||
98311e4b | 3486 | - Fix a typo in the Linux interface discovery code. |
eaf0b302 TL |
3487 | |
3488 | - Conditionalize a piece of trace code that wasn't conditional. | |
3489 | ||
3490 | Changes since 3.0 Release Candidate 4 | |
3491 | ||
3492 | - Fix a bug that would prevent leases from being abandoned properly on | |
3493 | DHCPDECLINE. | |
3494 | ||
3495 | - Fix failover peer OMAPI support. | |
3496 | ||
3497 | - In failover, correctly handle expiration of leases. Previously, | |
3498 | leases would never be reclaimed because they couldn't make the | |
3499 | transition from EXPIRED to FREE. | |
3500 | ||
3501 | - Fix some broken failover state transitions. | |
3502 | ||
3503 | - Documentation fixes. | |
3504 | ||
3505 | - Take out an unnecessary check in DHCP relay agent information option | |
3506 | stashing code that was preventing REBINDING clients from rebinding. | |
3507 | ||
3508 | - Prevent failover peers from allocating leases in DHCPREQUEST | |
3509 | processing if the lease belongs to the other server. | |
3510 | ||
3511 | - Record server version in lease file introductory comment. | |
3512 | ||
3513 | - Correctly report connection errors in OMAPI and failover. | |
3514 | ||
3515 | - Make authentication signature algorithm name comparisons in OMAPI | |
3516 | case-insensitive. | |
3517 | ||
3518 | - Fix compile problem on SunOS 4.x | |
3519 | ||
98311e4b | 3520 | - If a signature algorithm is not terminated with '.', terminate it so |
eaf0b302 TL |
3521 | that comparisons between fully-qualified names will work |
3522 | consistently. | |
3523 | ||
3524 | - Different SIOCGIFCONF probe code, may "fix" problem on some Linux | |
3525 | systems with the probe not working correctly. | |
3526 | ||
3527 | - Don't allow user to type omapi key on command line of omshell. | |
3528 | ||
0596b051 TL |
3529 | Changes since 3.0 Release Candidate 3 |
3530 | ||
3531 | - Do lease billing on startup in a way that I *think* will finally do | |
3532 | the billing correctly - the previous method could overbill as a | |
3533 | result of duplicate leases. | |
3534 | ||
3535 | - Document OMAPI server objects. | |
3536 | ||
892fe689 TL |
3537 | Changes since 3.0 Release Candidate 2 Patchlevel 1 |
3538 | ||
3539 | - Fix some problems in the DDNS update code. Thanks to Albert | |
3540 | Herranz for figuring out the main problem. | |
3541 | ||
3542 | - Fix some reference counting errors on host entries that were causing | |
3543 | core dumps. | |
3544 | ||
3545 | - Fix a byte-swap bug in the token ring code, thanks to Jochen | |
3546 | Friedrich. | |
3547 | ||
3548 | - Fix a bug in lease billing, thanks to Jonas Bulow. | |
3549 | ||
3550 | Changes since 3.0 Release Candidate 2 | |
3551 | ||
3552 | - Change the conditions under which a DHCPRELEASE is actually | |
3553 | committed to be consistent with lease binding states rather than | |
98311e4b | 3554 | using the lease end time. This may fix some problems with the |
892fe689 TL |
3555 | billing class code. |
3556 | ||
3557 | - Fix a bug where lease updates would fail on Digital Unix (and maybe | |
3558 | others) because malloc was called with a size of zero. | |
3559 | ||
3560 | - Fix a core dump that happens when the DHCP server can't create its | |
3561 | trace file. | |
3562 | ||
79ea3de8 | 3563 | Changes since 3.0 Release Candidate 1 Patchlevel 1 |
87784777 | 3564 | |
79ea3de8 TL |
3565 | - Fix the dhcp_failover_put_message to not attempt to allocate a |
3566 | zero-length buffer. Some versions of malloc() fail if you try to | |
3567 | allocate a zero-length buffer, and this was causing problems on, | |
3568 | e.g., Digital Unix. | |
3569 | ||
3570 | - Fix a case where the failover code was printing an error message | |
3571 | when no error had occurred. | |
3572 | ||
3573 | - Fix a problem where when a server went down and back up again, the | |
3574 | peer would not see a state transition and so would stay in the | |
3575 | non-communicating state. | |
3576 | ||
3577 | - Be smart about going into recover_wait. | |
3578 | ||
3579 | - Fix a problem in the failover implementation where peers would fail | |
3580 | to come into sync if interrupted in the RECOVER state. This could | |
3581 | have been the cause of some problems people have reported recently. | |
3582 | ||
3583 | - Fix a problem with billing classes where they would not be unbilled | |
3584 | when the client lease expired. | |
3585 | ||
3586 | - If select fails, figure out which descriptor is bad, and cut it out | |
3587 | of the I/O loop. This prevents a potentially nasty spin. I | |
3588 | haven't heard any report it in a while, but it came up consistently | |
3589 | in testing. | |
3590 | ||
3591 | - Fix a bug in the relay agent where if you specified interfaces on | |
3592 | the command line, it would fail. | |
3593 | ||
3594 | - Fix a couple of small bugs in the omapi connection object (no known | |
3595 | user impact). | |
3596 | ||
3597 | - Add the missing 3.0 Beta 1 lease conversion script. | |
3598 | ||
3599 | - Read dhcp client script hooks if they exist, rather than only if | |
3600 | they're executable. | |
3601 | ||
3602 | Changes since 3.0 Release Candidate 1 | |
87784777 TL |
3603 | |
3604 | - Fix a memory smash that happens when fixed-address leases are used. | |
3605 | ANY SITE AT WHICH FIXED-ADDRESS STATEMENTS ARE BEING USED SHOULD | |
3606 | UPGRADE IMMEDIATELY. This has been a long-standing bug - thanks to | |
3607 | Alvise Nobile for discovering it and helping me to find it! | |
3608 | ||
79ea3de8 TL |
3609 | - Fix a small bug in binary-to-ascii, thanks to H. Peter Anvin of |
3610 | Transmeta. | |
3611 | ||
87784777 TL |
3612 | - There is a known problem with the DHCP server doing failover on |
3613 | Compaq Alpha systems. This patchlevel is not a release candidate | |
3614 | because of this bug. The bug should be straightforward to fix, so | |
3615 | a new release candidate is expected shortly. | |
3616 | ||
3617 | - There is a known problem in the DDNS update code that is probably a | |
3618 | bug, and is not, as far as we know, fixed in this patchlevel. | |
3619 | ||
6d779c72 TL |
3620 | Changes since 3.0 Beta 2 Patchlevel 24 |
3621 | ||
3622 | - Went over problematic failover state transitions and made them all | |
3623 | work, so that failover should now much less fragile. | |
3624 | ||
3625 | - Add some dhcpctl and omapi documentation | |
3626 | ||
3627 | - Fix compile errors when compiling with unusual predefines. | |
3628 | ||
3629 | - Make Token Ring work on Linux 2.4 | |
3630 | ||
3631 | - Fix the Digital Unix BPF_WORDALIGN bug. | |
3632 | ||
3633 | - Fix some dhcp client documentation errors. | |
3634 | ||
3635 | - Update some parts of the README file. | |
3636 | ||
3637 | - Support GCC on SCO. | |
3638 | ||
adbef119 | 3639 | Changes since 3.0 Beta 2 Patchlevel 23 |
de57e64b TL |
3640 | |
3641 | - Fix a bug in the DNS update code where a status code was not being | |
3642 | checked. This may have been causing core dumps. | |
3643 | ||
3644 | - When parsing the lease file, if a lease declaration includes a | |
3645 | billing class statement, and the lease already has a billing class, | |
3646 | unbill the old class. | |
3647 | ||
3648 | - When processing failover transactions, where acks will be deferred, | |
3649 | process the state transition immediately. | |
3650 | ||
3651 | - Don't try to use the new SIOCGIFCONF buffer size detection code on | |
3652 | Linux 2.0, which doesn't provide this functionality. | |
3653 | ||
3654 | - Apply a patch suggested by Tuan Uong for a problem in dlpi.c. | |
3655 | ||
3656 | - Fix a problem in using the which command in the configure script. | |
3657 | ||
3658 | - Fix a parse error in the client when setting up an omapi listener. | |
3659 | ||
3660 | - Document the -n and -g flags to the client. | |
3661 | ||
3662 | - Make sure there is always a stdin and stdout on startup. This | |
3663 | prevents shell scripts from accidentally writing error messages into | |
3664 | configuration files that happen to be opened as stderr. | |
3665 | ||
3666 | - If an interface is removed, the client will now notice that it is | |
3667 | gone rather than spinning. This has only been tested on NetBSD. | |
3668 | ||
3669 | - The client will attempt to get an address even if it can't create a | |
3670 | lease file. | |
3671 | ||
3672 | - Don't overwrite tracefiles. | |
3673 | ||
3674 | - Fix some memory allocation bugs in failover. | |
2aa36519 | 3675 | |
adbef119 | 3676 | Changes since 3.0 Beta 2 Patchlevel 22 |
140158d3 TL |
3677 | |
3678 | - Apply some patches suggested by Cyrille Lefevre, who is maintaining | |
3679 | the FreeBSD ISC DHCP Distribution port. | |
3680 | ||
3681 | - Fix a core dump in DHCPRELEASE. | |
3682 | ||
adbef119 | 3683 | Changes since 3.0 Beta 2 Patchlevel 21 |
3a395e60 TL |
3684 | |
3685 | - This time for sure: fix the spin described in the changes for pl20. | |
3686 | ||
adbef119 | 3687 | Changes since 3.0 Beta 2 Patchlevel 20 |
fc74dd0c TL |
3688 | |
3689 | - Fix a problem with Linux detecting large numbers of interfaces (Ben) | |
3690 | ||
3691 | - Fix a memory smash in the quotify code, which was introduced in | |
3692 | pl19. | |
3693 | ||
3694 | - Actually fix the spin described in the changes for pl20. The | |
3695 | previous fix only partially fixed the problem - enough to get it | |
3696 | past the regression test. | |
3697 | ||
adbef119 | 3698 | Changes since 3.0 Beta 2 Patchlevel 19 |
ed5ee591 TL |
3699 | |
3700 | - Fix a bug that could cause the server to abort if compiled with | |
3701 | POINTER_DEBUG enabled. | |
3702 | ||
3703 | - Fix a bug that could cause the server to spin when responding to a | |
3704 | DHCPREQUEST. | |
3705 | ||
3706 | - Apply Joost Mulders' suggested patches for DLPI on x86. | |
3707 | ||
3708 | - Support NUL characters in quoted strings. | |
3709 | ||
3710 | - Install unformatted man pages on SunOS. | |
3711 | ||
adbef119 | 3712 | Changes since 3.0 Beta 2 Patchlevel 18 |
b3fad8ac | 3713 | |
3350f5b7 TL |
3714 | - Allow the server to be placed in partner-down state using OMAPI. |
3715 | (Damien Neil) | |
3716 | ||
3717 | - Implement omshell, which can be used to do arbitrary things to the | |
3718 | server (in theory). (Damien Neil) | |
3719 | ||
3720 | - Fix a case where if a client had two different leases the server could | |
3721 | actually dereference the second one when it hadn't been referenced, | |
3722 | leading to memory corruption and a core dump. (James Brister) | |
3723 | ||
3724 | - Fix a case where a client could request the address of another client's | |
3725 | lease, but find_lease wouldn't detect that the other client had it, and | |
3726 | would attempt to allocate it to the client, resulting in a lease conflict | |
3727 | message. | |
3728 | ||
3729 | - Fix a case where a client with more than one client identifier could be | |
3730 | given a lease where the hardware address was correct but the client | |
3731 | identifier was not, resulting in a lease conflict message. | |
3732 | ||
98311e4b | 3733 | - Fix a problem where the server could write out a colon-separated |
3350f5b7 TL |
3734 | hex list as a value for a variable, which would then not parse. |
3735 | The fix is to always write strings as quoted strings, with any | |
3736 | non-printable characters quoted as octal escape sequences. So | |
3737 | a file written the old way still won't work, but new files written | |
3738 | this way will work. | |
3739 | ||
b3fad8ac TL |
3740 | - Fix documentation for sending non-standard options. |
3741 | ||
3742 | - Use unparsable names for unknown options. WARNING: this will | |
3743 | break any configuration files that use the option-nnn convention. | |
3744 | If you want to continue to use this convention for some options, | |
3745 | please be sure to write a definition, like this: | |
3746 | ||
3747 | option option-nnn code nnn = string; | |
3748 | ||
3749 | You can use a descriptive name instead of option-nnn if you like. | |
3750 | ||
3751 | - Fix a problem where we would see a DHCPDISCOVER/DHCPOFFER/ | |
3752 | DHCPREQUEST/DHCPACK/DHCPREQUEST/DHCPNAK sequence. This was the | |
3753 | result of a deceptively silly bug in supersede_lease. | |
3754 | ||
3755 | - Fix client script exit status check, according to a fix supplied by | |
3756 | Hermann Lauer. | |
3757 | ||
3758 | - Fix an endianness bug in the tracefile support, regarding ICMP | |
3759 | messages. | |
3760 | ||
3350f5b7 TL |
3761 | - Fix a bug in the client where the medium would not work correctly if |
3762 | it contained quoted strings. | |
3763 | ||
b3fad8ac TL |
3764 | ** there was no pl17 ** |
3765 | ||
adbef119 | 3766 | Changes since 3.0 Beta 2 Patchlevel 16 |
e6d30fd6 | 3767 | |
6da9db9d TL |
3768 | - Add support for transaction tracing. This allows the state of the |
3769 | DHCP server on startup, and all the subsequent transactions, to be | |
3770 | recorded in a file which can then be played back to reproduce the | |
3771 | behaviour of the DHCP server. This can be used to quickly | |
3772 | reproduce bugs that cause core dumps or corruption, and also for | |
3773 | tracking down memory leaks. | |
3774 | ||
3775 | - Incorporate some bug fixes provided by Joost Mulders for the DLPI | |
3776 | package which should clear up problems people have been seeing on | |
3777 | Solaris. | |
3778 | ||
3779 | - Fix bugs in the handling of options stored as linked lists (agent | |
3780 | options, fqdn options and nwip options) that could cause memory | |
3781 | corruption and core dumps. | |
3782 | ||
3783 | - Fix a bug in DHCPREQUEST handling that resulted in DHCPNAK messages | |
3784 | not being send in some cases when they were needed. | |
3785 | ||
3786 | - Make the lease structure somewhat more compact. | |
3787 | ||
3788 | - Make initial failover startup *much* faster. This was researched | |
3789 | and implemented by Damien Neil. | |
3790 | ||
3791 | - Add a --version flag to all executables, which prints the program | |
3792 | name and version to standard output. | |
3793 | ||
3794 | - Don't rewrite the lease file every thousand leases. | |
3795 | ||
e6d30fd6 TL |
3796 | - A bug in nit.c for older SunOS machines was fixed by a patch sent in |
3797 | by Takeshi Hagiwara. | |
3798 | ||
6da9db9d TL |
3799 | - Fix a memory corruption bug in the DHCP client. |
3800 | ||
3801 | - Lots of documentation updates. | |
3802 | ||
3803 | - Add a feature allowing environment variables to be passed to the | |
3804 | DHCP client script on the DHCP client command line. | |
3805 | ||
3806 | - Fix client medium support, which had been broken for some time. | |
3807 | ||
3808 | - Fix a bug in the DHCP client initial startup backoff interval, which | |
3809 | would cause two DHCPDISCOVERS to be sent back-to-back on startup. | |
3810 | ||
adbef119 | 3811 | Changes since 3.0 Beta 2 Patchlevel 15 |
af49fdff TL |
3812 | |
3813 | - Some documentation tweaks. | |
3814 | ||
3815 | - Maybe fix a problem in the DLPI code. | |
3816 | ||
3817 | - Fix some error code space inconsistencies in ddns update code. | |
3818 | ||
3819 | - Support relay agents that intercept unicast DHCP messages to stuff | |
3820 | agent options into them. | |
3821 | ||
3822 | - Fix a small memory leak in the relay agent option support code. | |
3823 | ||
c5b569f8 TL |
3824 | - Fix a core dump that would occur if a packet was sent with no |
3825 | options. | |
3826 | ||
adbef119 | 3827 | Changes since 3.0 Beta 2 Patchlevel 14 |
754ae3e9 TL |
3828 | |
3829 | - Finish fixing a long-standing bug in the agent options code. This | |
3830 | was causing core dumps and failing to operate correctly - in | |
3831 | particular, agent option stashing wasn't working. Agent option | |
3832 | stashing should now be working, meaning that agent options can be | |
3833 | used in class statements to control address allocation. | |
3834 | ||
3835 | - Fix up documentation. | |
3836 | ||
3837 | - Fix a couple of small memory leaks that would have added up | |
3838 | significantly in a high-demand situation. | |
3839 | ||
3840 | - Add a log-facility configuration parameter. | |
3841 | ||
3842 | - Fix a compile error on some older operating systems. | |
3843 | ||
3844 | - Add the ability in the client to execute certain statements before | |
3845 | transmitting packets to the server. Handy for debugging; not much | |
3846 | practical use otherwise. | |
3847 | ||
3848 | - Don't send faked-out giaddr when renewing or bound - again, useful | |
3849 | for debugging. | |
3850 | ||
adbef119 | 3851 | Changes since 3.0 Beta 2 Patchlevel 13 |
2f2e7960 TL |
3852 | |
3853 | - Fixed a problem where the fqdn decoder would sometimes try to store | |
3854 | an option with an (unsigned) negative length, resulting in a core | |
3855 | dump on some systems. | |
3856 | ||
3857 | - Work around the Win98 DHCP client, which NUL-terminates the FQDN | |
3858 | option. | |
3859 | ||
3860 | - Work around Win98 and Win2k clients that will claim they want to do | |
3861 | the update even when they don't have any way to do it. | |
3862 | ||
3863 | - Fix some log messages that can be printed when failover is operating | |
3864 | that were not printing enough information. | |
3865 | ||
3866 | - It was possible for a DHCPDISCOVER to get an allocation even when | |
3867 | the state machine said the server shouldn't be responding. | |
3868 | ||
3869 | - Don't load balance DHCPREQUESTs from clients in RENEWING and | |
3870 | REBINDING, since in RENEWING, if we heard it, it's for us, and in | |
3871 | REBINDING, the client wouldn't have got to REBINDING if its primary | |
3872 | were answering. | |
3873 | ||
3874 | - When we get a bogus state lease binding state transition, don't do | |
3875 | the transition. | |
9a111ee8 | 3876 | |
2f2e7960 | 3877 | |
adbef119 | 3878 | Changes since 3.0 Beta 2 Patchlevel 12 |
66e98927 TL |
3879 | |
3880 | - Fixed a couple of silly compile errors. | |
3881 | ||
a1e2e3d6 TL |
3882 | Changes since 3.0 Beta 2 Patchlevel 11 |
3883 | ||
3884 | - Albert Herranz tracked down and fixed a subtle bug in the base64 | |
3885 | decoder that would prevent any key with an 'x' in its base64 | |
3886 | representation from working correctly. | |
3887 | ||
3888 | - Thanks to Chris Cheney and Michael Sanders, we have a fix for the | |
3889 | hang that they both spotted in the DHCP server - when | |
3890 | one-lease-per-client was set, the code to release the "other" lease | |
3891 | could spin. | |
3892 | ||
3893 | - Fix a problem with alignment of the input buffer in bpf in cases | |
3894 | where two packets arrive in the same bpf read. | |
3895 | ||
3896 | - Fix a problem where the relay agent would crash if you specified an | |
3897 | interface name on the command line. | |
3898 | ||
3899 | - Add the ability to conditionalize client behaviour based on the | |
3900 | client state. | |
3901 | ||
3902 | - Add support for the FQDN option, and added support for a new way of | |
3903 | doing ddns updates (ddns update style interim) that allows more than | |
3904 | one DHCP server to update the DNS for the same network(s). This | |
3905 | was implemented by Damien Neil with some additional functionality | |
3906 | added by Ted Lemon. | |
3907 | ||
3908 | - Damien added a "log" statement, so that the configuration file can | |
3909 | be made to log debugging information and other information. | |
3910 | ||
3911 | - Fixed a bug that caused option buffers not to be terminated with an | |
3912 | end option. | |
3913 | ||
3914 | - Fixed a long-standing bug in the support for option spaces where the | |
3915 | options are stored as an ordered list rather than in a hash table, | |
3916 | which could theoretically result in memory pool corruption. | |
3917 | ||
3918 | - Prevent hardware declarations with no actual hardware address from | |
3919 | being written as something unparsable, and behave correctly in the | |
3920 | face of a null hardware address on input. | |
3921 | ||
3922 | - Allow key names to be FQDNs, and qualify the algorithm name if it is | |
3923 | specified unqualified. | |
3924 | ||
3925 | - Modify the DDNS update code so that it never prints the "resolver | |
3926 | failed" message, but instead says *why* the resolver failed. | |
3927 | ||
3928 | - Officially support the subnet selection option, which now has an | |
3929 | RFC. | |
3930 | ||
3931 | - Fix a build bug on MacOS X. | |
3932 | ||
3933 | - Allow administrator to disable ping checking. | |
3934 | ||
3935 | - Clean up dhcpd.conf documentation and add more information about how | |
3936 | it works. | |
3937 | ||
6c68ec36 TL |
3938 | Changes since 3.0 Beta 2 Patchlevel 10 |
3939 | ||
3940 | - Fix a bug introduced during debugging (!) and accidentally committed | |
3941 | to CVS. | |
3942 | ||
9fd337e7 TL |
3943 | Changes since 3.0 Beta 2 Patchlevel 9 |
3944 | ||
3945 | - Fix DHCP client handling of vendor encapsulated options. | |
3946 | ||
3947 | - Fix a bug in the handling of relay agent information options introduced | |
3948 | in patchlevel 9. | |
3949 | ||
3950 | - Stash agent options on client leases by default, and use the stashed | |
3951 | options at renewal time. | |
3952 | ||
3953 | - Add the ability to test the client's binding state in the client | |
3954 | configuration language. | |
3955 | ||
3956 | - Fix a core dump in the DNS update code. | |
3957 | ||
3958 | - Fix some expression evaluation bugs that were causing updates to be | |
3959 | done when no client hostname was received. | |
3960 | ||
3961 | - Fix expression evaluation debugging printfs. | |
3962 | ||
3963 | - Teach pretty_print_option to print options in option spaces other than | |
3964 | the DHCP option space. | |
3965 | ||
3966 | - Add a warning message if the RHS of a not is not boolean. | |
3967 | ||
3968 | - Never select for more than a day, because some implementations of | |
3969 | select will just fail if the timeout is too long (!). | |
3970 | ||
3971 | - Fix a case where a DHCPDISCOVER from an unknown network would be | |
3972 | silently dropped. | |
3973 | ||
3974 | - Fix a bug where if a client requested an IP address for which a different | |
3975 | client had the lease, the DHCP server would reallocate it anyway. | |
3976 | ||
3977 | - Fix the DNS update code so that if the client changes its name, the DNS | |
3978 | will be correctly updated. | |
3979 | ||
3922772a TL |
3980 | Changes since 3.0 Beta 2 Patchlevel 8 |
3981 | ||
3982 | - Oops, there was another subtle math error in the header-length | |
3983 | bounds-checking. | |
3984 | ||
3985 | Changes since 3.0 Beta 2 Patchlevel 7 | |
848c2547 TL |
3986 | |
3987 | - Oops, forgot to byte-swap udp header length before bounds-checking it. | |
3988 | ||
3922772a | 3989 | Changes since 3.0 Beta 2 Patchlevel 6 |
0f6045f8 | 3990 | |
f8572308 TL |
3991 | - Fix a possible DoS attack where a client could cause the checksummer |
3992 | to dump core. This was a read, not a write, so it shouldn't be | |
3993 | possible to exploit it any further than that. | |
3994 | ||
3995 | - Implement client- and server-side support for using the Client FQDN | |
3996 | option. | |
3997 | ||
3998 | - Support for other option spaces in the client has been added. This | |
3999 | means that it is now possible to define a vendor option space on the | |
4000 | client, request options in that space from the server (which must | |
4001 | define the same option space), and then use those options in the | |
4002 | client. This also allows NWIP and Client FQDN options to be used | |
4003 | meaningfully. | |
4004 | ||
4005 | - Add object initializer support. This means that objects can now be | |
4006 | initialized to something other than all-zeros when allocated, which | |
4007 | makes, e.g., the interface object support code a little more robust. | |
4008 | ||
4009 | - Fix an off-by-one bug in the host stuffer. This was causing host | |
4010 | deletes not the work, and may also have been causing OMAPI | |
4011 | connections to get dropped. Thanks to James Brister for tracking | |
4012 | this one down! | |
4013 | ||
4014 | - Fixed a core dump in the interface discovery code that is triggered | |
4015 | when there is no subnet declaration for an interface, but the server | |
4016 | decides to continue running. Thanks to Shane Kerr for tracking | |
4017 | down and fixing this problem. | |
4018 | ||
4019 | Changes since 3.0 Beta 2 Patchlevel 5 | |
4020 | ||
0f6045f8 TL |
4021 | - Fix a bug in the recent enhancement to the interface discovery code |
4022 | to support arbitrary-length interface lists. | |
4023 | ||
4024 | - Support NUL-terminated DHCP options when initializing client-script | |
4025 | environment. | |
4026 | ||
4027 | - Fix suffix operator. | |
4028 | ||
4029 | - Fix NetWare/IP option parsing. | |
4030 | ||
4031 | - Better error/status checking in dhcpctl initialization and omapi | |
4032 | connection code. | |
4033 | ||
4034 | - Fix a potential memory smash in dhcpctl code. | |
4035 | ||
4036 | - Fix SunOS4 and (maybe) Ultrix builds. | |
4037 | ||
4038 | - Fix a bug where a certain sort of incoming packet could cause a core | |
4039 | dump on Solaris (and probably elsewhere). | |
4040 | ||
4041 | - Add some more safety checks in error logging code. | |
4042 | ||
4043 | - Add support for ISC_R_INCOMPLETE in OMAPI protocol connection code. | |
4044 | ||
4045 | - Fix relay agent so that if an interface is specified on the command | |
4046 | line, the relay agent does not dump core. | |
4047 | ||
4048 | - Fix class matching so that match if can be combined with match or | |
4049 | spawn with. | |
4050 | ||
4051 | - Do not allow spurious leases in the lease database to introduce | |
4052 | potentially bogus leases into the in-memory database. | |
4053 | ||
4054 | - Fix a byte-order problem in the client hardware address type code | |
4055 | for OMAPI. | |
4056 | ||
4057 | - Be slightly less picky about what sort of hardware addresses OMAPI | |
4058 | can install in host declarations. | |
4059 | ||
801de092 TL |
4060 | Changes since 3.0 Beta 2 Patchlevel 4 |
4061 | ||
4062 | - Incorporated Peter Marschall's proposed change to array/record | |
4063 | parsing, which allows things like the slp-agent option to be encoded | |
4064 | correctly. Thanks very much to Peter for taking the initiative to | |
4065 | do this, and for doing such a careful job of it (e.g., updating the | |
4066 | comments)! | |
4067 | ||
4068 | - Added an encoding for the slp-agent option. :') | |
4069 | ||
6ed7a93d TL |
4070 | - Fixed SunOS 4 build. Thanks to Robert Elz for responding to my |
4071 | request for help on this with patches! | |
4072 | ||
4073 | - Incorporated a change that should fix a problem reported by Philippe | |
4074 | Jumelle where when the network connection between two servers is | |
4075 | lost, they never reconnect. | |
4076 | ||
4077 | - Fix client script files other than that for NetBSD to actually use | |
4078 | make_resolv_conf as documented in the manual page. | |
4079 | ||
4080 | - Fix a bug in the packet handling code that could result in a core | |
4081 | dump. | |
4082 | ||
4083 | - Fix a bug in the bootp code where responses on the local net would | |
4084 | be sent to the wrong MAC address. Thanks to Jerry Schave for | |
4085 | catching this one. | |
4086 | ||
490eb5e7 TL |
4087 | Changes since 3.0 Beta 2 Patchlevel 3 |
4088 | ||
4089 | - In the DHCP client, execute client statements prior to using the values | |
45d545f0 | 4090 | of options, so that the client configuration can overridden, e.g., the |
490eb5e7 TL |
4091 | lease renewal time. |
4092 | ||
4093 | - Fix a reference counting error that would result in very reproducible | |
4094 | failures in updates, as well as occasional core dumps, if a zone was | |
4095 | declared without a key. | |
4096 | ||
4097 | - Fix some Linux 2.0 compilation problems. | |
4098 | ||
4099 | - Fix a bug in scope evaluation during execution of "on" statements that | |
4100 | caused values not to be recorded on leases. | |
4101 | ||
4102 | - If the dhcp-max-message-size option is specified in scope, and the | |
4103 | client didn't send this option, use the one specified in scope to | |
4104 | determine the maximum size of the response. | |
4105 | ||
592d8153 TL |
4106 | Changes since 3.0 Beta 2 Patchlevel 2 |
4107 | ||
359b023e TL |
4108 | - Fix a case where spawning subclasses were being allocated |
4109 | incorrectly, resulting in a core dump. | |
4110 | ||
592d8153 TL |
4111 | - Fix a case where the DHCP server might inappropriately NAK a |
4112 | RENEWING client. | |
4113 | ||
4114 | - Fix a place dhcprequest() where static leases could leak. | |
4115 | ||
4116 | - Include memory.h in omapip_p.h so that we don't get warnings about | |
4117 | using memcmp(). | |
4118 | ||
2aa36519 TL |
4119 | Changes since 3.0 Beta 2 Patchlevel 1 |
4120 | ||
4121 | - Notice when SIOCFIGCONF returns more data than fit in the buffer - | |
4122 | allocate a larger buffer, and retry. Thanks to Greg Fausak for | |
4123 | pointing this out. | |
4124 | ||
4125 | - In the server, if no interfaces were configured, report an error and | |
4126 | exit. | |
4127 | ||
4128 | - Don't ever record a state of 'startup'. | |
4129 | ||
4130 | - Don't try to evaluate the local failover binding address if none was | |
4131 | specified. Thanks to Joseph Breu for finding this. |