includes/site.h

   1 /* Site-specific definitions.
   2
   3    For supported systems, you shouldn't need to make any changes here.
   4    However, you may want to, in order to deal with site-specific
   5    differences. */
   6
   7 /* Add any site-specific definitions and inclusions here... */
   8
   9 /* #include <site-foo-bar.h> */
  10 /* #define SITE_FOOBAR */
  11
  12 /* Define this if you don't want dhcpd to run as a daemon and do want
  13    to see all its output printed to stdout instead of being logged via
  14    syslog().   This also makes dhcpd use the dhcpd.conf in its working
  15    directory and write the dhcpd.leases file there. */
  16
  17 /* #define DEBUG */
  18
  19 /* Define this to see what the parser is parsing.   You probably don't
  20    want to see this. */
  21
  22 /* #define DEBUG_TOKENS */
  23
  24 /* Define this to see dumps of incoming and outgoing packets.    This
  25    slows things down quite a bit... */
  26
  27 /* #define DEBUG_PACKET */
  28
  29 /* Define this if you want to see dumps of expression evaluation. */
  30
  31 /* #define DEBUG_EXPRESSIONS */
  32
  33 /* Define this if you want to see dumps of find_lease() in action. */
  34
  35 /* #define DEBUG_FIND_LEASE */
  36
  37 /* Define this if you want to see dumps of parsed expressions. */
  38
  39 /* #define DEBUG_EXPRESSION_PARSE */
  40
  41 /* Define this if you want to watch the class matching process. */
  42
  43 /* #define DEBUG_CLASS_MATCHING */
  44
  45 /* Define this if you want to track memory usage for the purpose of
  46    noticing memory leaks quickly. */
  47
  48 /* #define DEBUG_MEMORY_LEAKAGE */
  49 /* #define DEBUG_MEMORY_LEAKAGE_ON_EXIT */
  50
  51 /* Define this if you want exhaustive (and very slow) checking of the
  52    malloc pool for corruption. */
  53
  54 /* #define DEBUG_MALLOC_POOL */
  55
  56 /* Define this if you want to see a message every time a lease's state
  57    changes. */
  58 /* #define DEBUG_LEASE_STATE_TRANSITIONS */
  59
  60 /* Define this if you want to maintain a history of the last N operations
  61    that changed reference counts on objects.   This can be used to debug
  62    cases where an object is dereferenced too often, or not often enough. */
  63
  64 /* #define DEBUG_RC_HISTORY */
  65
  66 /* Define this if you want to see the history every cycle. */
  67
  68 /* #define DEBUG_RC_HISTORY_EXHAUSTIVELY */
  69
  70 /* This is the number of history entries to maintain - by default, 256. */
  71
  72 /* #define RC_HISTORY_MAX 10240 */
  73
  74 /* Define this if you want dhcpd to dump core when a non-fatal memory
  75    allocation error is detected (i.e., something that would cause a
  76    memory leak rather than a memory smash). */
  77
  78 /* #define POINTER_DEBUG */
  79
  80 /* Define this if you want debugging output for DHCP failover protocol
  81    messages. */
  82
  83 /* #define DEBUG_FAILOVER_MESSAGES */
  84
  85 /* Define this to include contact messages in failover message debugging.
  86    The contact messages are sent once per second, so this can generate a
  87    lot of log entries. */
  88
  89 /* #define DEBUG_FAILOVER_CONTACT_MESSAGES */
  90
  91 /* Define this if you want debugging output for DHCP failover protocol
  92    event timeout timing. */
  93
  94 /* #define DEBUG_FAILOVER_TIMING */
  95
  96 /* Define this if you want to include contact message timing, which is
  97    performed once per second and can generate a lot of log entries. */
  98
  99 /* #define DEBUG_FAILOVER_CONTACT_TIMING */
 100
 101 /* Define this if you want all leases written to the lease file, even if
 102    they are free leases that have never been used. */
 103
 104 /* #define DEBUG_DUMP_ALL_LEASES */
 105
 106 /* Define this if you want to see the requests and replies between the
 107    DHCP code and the DNS library code. */
 108 /* #define DEBUG_DNS_UPDATES */
 109
 110 /* Define this if you want to debug the host part of the inform processing */
 111 /* #define DEBUG_INFORM_HOST */
 112
 113 /* Define this if you want to debug the binary leases (lease_chain) code */
 114 /* #define DEBUG_BINARY_LEASES */
 115
 116 /* Define this if you want to debug checksum calculations */
 117 /* #define DEBUG_CHECKSUM */
 118
 119 /* Define this if you want to verbosely debug checksum calculations */
 120 /* #define DEBUG_CHECKSUM_VERBOSE */
 121
 122
 123 /* Define this if you want DHCP failover protocol support in the DHCP
 124    server. */
 125
 126 /* #define FAILOVER_PROTOCOL */
 127
 128 /* Define this if you want DNS update functionality to be available. */
 129
 130 #define NSUPDATE
 131
 132 /* Define this if you want to enable the DHCP server attempting to
 133    find a nameserver to use for DDNS updates. */
 134 #define DNS_ZONE_LOOKUP
 135
 136 /* Define this if you want the dhcpd.pid file to go somewhere other than
 137    the default (which varies from system to system, but is usually either
 138    /etc or /var/run. */
 139
 140 /* #define _PATH_DHCPD_PID      "/var/run/dhcpd.pid" */
 141
 142 /* Define this if you want the dhcpd.leases file (the dynamic lease database)
 143    to go somewhere other than the default location, which is normally
 144    /etc/dhcpd.leases. */
 145
 146 /* #define _PATH_DHCPD_DB       "/etc/dhcpd.leases" */
 147
 148 /* Define this if you want the dhcpd.conf file to go somewhere other than
 149    the default location.   By default, it goes in /etc/dhcpd.conf. */
 150
 151 /* #define _PATH_DHCPD_CONF     "/etc/dhcpd.conf" */
 152
 153 /* Network API definitions.   You do not need to choose one of these - if
 154    you don't choose, one will be chosen for you in your system's config
 155    header.    DON'T MESS WITH THIS UNLESS YOU KNOW WHAT YOU'RE DOING!!! */
 156
 157 /* Define USE_SOCKETS to use the standard BSD socket API.
 158
 159    On many systems, the BSD socket API does not provide the ability to
 160    send packets to the 255.255.255.255 broadcast address, which can
 161    prevent some clients (e.g., Win95) from seeing replies.   This is
 162    not a problem on Solaris.
 163
 164    In addition, the BSD socket API will not work when more than one
 165    network interface is configured on the server.
 166
 167    However, the BSD socket API is about as efficient as you can get, so if
 168    the aforementioned problems do not matter to you, or if no other
 169    API is supported for your system, you may want to go with it. */
 170
 171 /* #define USE_SOCKETS */
 172
 173 /* Define this to use the Sun Streams NIT API.
 174
 175    The Sun Streams NIT API is only supported on SunOS 4.x releases. */
 176
 177 /* #define USE_NIT */
 178
 179 /* Define this to use the Berkeley Packet Filter API.
 180
 181    The BPF API is available on all 4.4-BSD derivatives, including
 182    NetBSD, FreeBSD and BSDI's BSD/OS.   It's also available on
 183    DEC Alpha OSF/1 in a compatibility mode supported by the Alpha OSF/1
 184    packetfilter interface. */
 185
 186 /* #define USE_BPF */
 187
 188 /* Define this to use the raw socket API.
 189
 190    The raw socket API is provided on many BSD derivatives, and provides
 191    a way to send out raw IP packets.   It is only supported for sending
 192    packets - packets must be received with the regular socket API.
 193    This code is experimental - I've never gotten it to actually transmit
 194    a packet to the 255.255.255.255 broadcast address - so use it at your
 195    own risk. */
 196
 197 /* #define USE_RAW_SOCKETS */
 198
 199 /* Define this to keep the old program name (e.g., "dhcpd" for
 200    the DHCP server) in place of the (base) name the program was
 201    invoked with. */
 202
 203 /* #define OLD_LOG_NAME */
 204
 205 /* Define this to change the logging facility used by dhcpd. */
 206
 207 /* #define DHCPD_LOG_FACILITY LOG_DAEMON */
 208
 209
 210 /* Define this if you want to be able to execute external commands
 211    during conditional evaluation. */
 212
 213 /* #define ENABLE_EXECUTE */
 214
 215 /* Define this if you aren't debugging and you want to save memory
 216    (potentially a _lot_ of memory) by allocating leases in chunks rather
 217    than one at a time. */
 218
 219 #define COMPACT_LEASES
 220
 221 /* Define this if you want to be able to save and playback server operational
 222    traces. */
 223
 224 /* #define TRACING */
 225
 226 /* Define this if you want the server to use the previous behavior
 227    when determining the DDNS TTL.  If the user has specified a ddns-ttl
 228    option that is used to detemine the ttl.  (If the user specifies
 229    an option that references the lease structure it is only usable
 230    for v4.  In that case v6 will use the default.) Otherwise when
 231    defined the defaults are: v4 - 1/2 the lease time,
 232    v6 - DEFAULT_DDNS_TTL.  When undefined the defaults are 1/2 the
 233    (preferred) lease time for both but with a cap on the maximum. */
 234
 235 /* #define USE_OLD_DDNS_TTL */
 236
 237 /* Define this if you want a DHCPv6 server to send replies to the
 238    source port of the message it received.  This is useful for testing
 239    but is only included for backwards compatibility. */
 240 /* #define REPLY_TO_SOURCE_PORT */
 241
 242 /* Define this if you want to enable strict checks in DNS Updates mechanism.
 243    Do not enable this unless are DHCP developer. */
 244 /* #define DNS_UPDATES_MEMORY_CHECKS */
 245
 246 /* Define this if you want to allow domain list in domain-name option.
 247    RFC2132 does not allow that behavior, but it is somewhat used due
 248    to historic reasons. Note that it may be removed some time in the
 249    future. */
 250
 251 #define ACCEPT_LIST_IN_DOMAIN_NAME
 252
 253 /* In previous versions of the code when the server generates a NAK
 254    it doesn't attempt to determine if the configuration included a
 255    server ID for that client.  Defining this option causes the server
 256    to make a modest effort to determine the server id when building
 257    a NAK as a response.  This effort will only check the first subnet
 258    and pool associated with a shared subnet and will not check for
 259    host declarations.  With some configurations the server id
 260    computed for a NAK may not match that computed for an ACK. */
 261
 262 #define SERVER_ID_FOR_NAK
 263
 264 /* NOTE:  SERVER_ID_CHECK switch has been removed. Enabling server id
 265  * checking is now done via the server-id-check statement. Please refer
 266  * to the dhcpd manpage (server/dhcpd.conf.5) */
 267
 268 /* Include code to do a slow transition of DDNS records
 269    from the interim to the standard version, or backwards.
 270    The normal code will handle removing an old style record
 271    when the name on a lease is being changed.  This adds code
 272    to handle the case where the name isn't being changed but
 273    the old record should be removed to allow a new record to
 274    be added.  This is the slow transition as leases are only
 275    updated as a client touches them.  A fast transition would
 276    entail updating all the records at once, probably at start
 277    up. */
 278 #define DDNS_UPDATE_SLOW_TRANSITION
 279
 280 /* Define the default prefix length passed from the client to
 281    the script when modifying an IPv6 IA_NA or IA_TA address.
 282    The two most useful values are 128 which is what the current
 283    specifications call for or 64 which is what has been used in
 284    the past.  For most OSes 128 will indicate that the address
 285    is a host address and doesn't include any on-link information.
 286    64 indicates that the first 64 bits are the subnet or on-link
 287    prefix. */
 288 #define DHCLIENT_DEFAULT_PREFIX_LEN 128
 289
 290 /* Enable the gentle shutdown signal handling.  Currently this
 291    means that on SIGINT or SIGTERM a client will release its
 292    address and a server in a failover pair will go through
 293    partner down.  Both of which can be undesireable in some
 294    situations.  We plan to revisit this feature and may
 295    make non-backwards compatible changes including the
 296    removal of this define.  Use at your own risk.  */
 297 /* #define ENABLE_GENTLE_SHUTDOWN */
 298
 299 /* Include old error codes.  This is provided in case you
 300    are building an external program similar to omshell for
 301    which you need the ISC_R_* error codes.  You should switch
 302    to DHCP_R_* error codes for those that have been defined
 303    (see includes/omapip/result.h).  The extra defines and
 304    this option will be removed at some time. */
 305 /* #define INCLUDE_OLD_DHCP_ISC_ERROR_CODES */
 306
 307 /* Use the older factors for scoring a lease in the v6 client code.
 308    The new factors cause the client to choose more bindings (IAs)
 309    over more addresse within a binding.  Most uses will get a
 310    single address in a single binding and only get an adverstise
 311    from a single server and there won't be a difference. */
 312 /* #define USE_ORIGINAL_CLIENT_LEASE_WEIGHTS */
 313
 314 /* Print out specific error messages for dhclient, dhcpd
 315    or dhcrelay when processing an incorrect command line.  This
 316    is included for those that might require the exact error
 317    messages, as we don't expect that is necessary it is on by
 318    default. */
 319 #define PRINT_SPECIFIC_CL_ERRORS
 320
 321 /* Limit the value of a file descriptor the serve will use
 322    when accepting a connecting request.  This can be used to
 323    limit the number of TCP connections that the server will
 324    allow at one time.  A value of 0 means there is no limit.*/
 325 #define MAX_FD_VALUE 200
 326
 327 /* Enable EUI-64 Address assignment policy.  Instructs the server
 328  * to use EUI-64 addressing instead of dynamic address allocation
 329  * for IA_NA pools, if the parameter use-eui-64 is true for the
 330  * pool.  Can be at all scopes down to the pool level.  Not
 331  * supported by the configure script. */
 332 /* #define EUI_64 */
 333
 334 /* Enable enforcement of the require option statement as documented
 335  * in man page.  Instructs the dhclient, when in -6 mode, to discard
 336  * offered leases that do not contain all options specified as required
 337  * in the client's configuration file. The client already enforces this
 338  * in -4 mode. */
 339 #define ENFORCE_DHCPV6_CLIENT_REQUIRE
 340
 341 /* Enable the invocation of the client script with a FAIL state code
 342  * by dhclient when running in one-try mode (-T) and the attempt to
 343  * obtain the desired lease(s) fails. Applies to IPv4 mode only. */
 344 /* #define CALL_SCRIPT_ON_ONETRY_FAIL */
 345
 346 /* Include definitions for various options.  In general these
 347    should be left as is, but if you have already defined one
 348    of these and prefer your definition you can comment the
 349    RFC define out to avoid conflicts */
 350 #define RFC2563_OPTIONS
 351 #define RFC2937_OPTIONS
 352 #define RFC4776_OPTIONS
 353 #define RFC4578_OPTIONS
 354 #define RFC4833_OPTIONS
 355 #define RFC4994_OPTIONS
 356 #define RFC5071_OPTIONS
 357 #define RFC5192_OPTIONS
 358 #define RFC5223_OPTIONS
 359 #define RFC5417_OPTIONS
 360 #define RFC5460_OPTIONS
 361 #define RFC5859_OPTIONS
 362 #define RFC5969_OPTIONS
 363 #define RFC5970_OPTIONS
 364 #define RFC5986_OPTIONS
 365 #define RFC6011_OPTIONS
 366 #define RFC6011_OPTIONS
 367 #define RFC6153_OPTIONS
 368 #define RFC6334_OPTIONS
 369 #define RFC6440_OPTIONS
 370 #define RFC6731_OPTIONS
 371 #define RFC6939_OPTIONS
 372 #define RFC6977_OPTIONS
 373 #define RFC7083_OPTIONS
 374 #define RFC7341_OPTIONS
 375 #define RFC7618_OPTIONS
 376 #define RFC7710_OPTIONS