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Commit | Line | Data |
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89d46774 | 1 | /* |
7e86f2f6 | 2 | * SNMP discovery backend for CUPS. |
89d46774 | 3 | * |
7e86f2f6 MS |
4 | * Copyright 2007-2014 by Apple Inc. |
5 | * Copyright 2006-2007 by Easy Software Products, all rights reserved. | |
89d46774 | 6 | * |
7e86f2f6 MS |
7 | * These coded instructions, statements, and computer programs are the |
8 | * property of Apple Inc. and are protected by Federal copyright | |
9 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
10 | * "LICENSE" which should have been included with this file. If this | |
11 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
89d46774 | 12 | * |
7e86f2f6 | 13 | * This file is subject to the Apple OS-Developed Software exception. |
89d46774 | 14 | */ |
15 | ||
16 | /* | |
17 | * Include necessary headers. | |
18 | */ | |
19 | ||
ed486911 | 20 | #include "backend-private.h" |
89d46774 | 21 | #include <cups/array.h> |
22 | #include <cups/file.h> | |
91c84a35 | 23 | #include <cups/http-private.h> |
b94498cf | 24 | #include <regex.h> |
89d46774 | 25 | |
26 | ||
27 | /* | |
28 | * This backend implements SNMP printer discovery. It uses a broadcast- | |
b94498cf | 29 | * based approach to get SNMP response packets from potential printers, |
7a14d768 MS |
30 | * requesting OIDs from the Host and Port Monitor MIBs, does a URI |
31 | * lookup based on the device description string, and finally a probe of | |
32 | * port 9100 (AppSocket) and 515 (LPD). | |
89d46774 | 33 | * |
34 | * The current focus is on printers with internal network cards, although | |
7a14d768 | 35 | * the code also works with many external print servers as well. |
89d46774 | 36 | * |
37 | * The backend reads the snmp.conf file from the CUPS_SERVERROOT directory | |
38 | * which can contain comments, blank lines, or any number of the following | |
39 | * directives: | |
40 | * | |
41 | * Address ip-address | |
42 | * Address @LOCAL | |
43 | * Address @IF(name) | |
44 | * Community name | |
45 | * DebugLevel N | |
b94498cf | 46 | * DeviceURI "regex pattern" uri |
89d46774 | 47 | * HostNameLookups on |
48 | * HostNameLookups off | |
b94498cf | 49 | * MaxRunTime N |
89d46774 | 50 | * |
51 | * The default is to use: | |
52 | * | |
53 | * Address @LOCAL | |
54 | * Community public | |
55 | * DebugLevel 0 | |
56 | * HostNameLookups off | |
ae71f5de | 57 | * MaxRunTime 120 |
89d46774 | 58 | * |
59 | * This backend is known to work with the following network printers and | |
60 | * print servers: | |
61 | * | |
62 | * Axis OfficeBasic, 5400, 5600 | |
7a14d768 | 63 | * Brother |
89d46774 | 64 | * EPSON |
65 | * Genicom | |
66 | * HP JetDirect | |
67 | * Lexmark | |
68 | * Sharp | |
69 | * Tektronix | |
70 | * Xerox | |
71 | * | |
72 | * It does not currently work with: | |
73 | * | |
74 | * DLink | |
75 | * Linksys | |
76 | * Netgear | |
77 | * Okidata | |
78 | * | |
79 | * (for all of these, they do not support the Host MIB) | |
80 | */ | |
81 | ||
89d46774 | 82 | /* |
83 | * Types... | |
84 | */ | |
85 | ||
749b1e90 MS |
86 | enum /**** Request IDs for each field ****/ |
87 | { | |
88 | DEVICE_TYPE = 1, | |
89 | DEVICE_DESCRIPTION, | |
90 | DEVICE_LOCATION, | |
91 | DEVICE_ID, | |
92 | DEVICE_URI, | |
93 | DEVICE_PRODUCT | |
94 | }; | |
95 | ||
b94498cf | 96 | typedef struct device_uri_s /**** DeviceURI values ****/ |
97 | { | |
98 | regex_t re; /* Regular expression to match */ | |
99 | cups_array_t *uris; /* URIs */ | |
100 | } device_uri_t; | |
101 | ||
89d46774 | 102 | typedef struct snmp_cache_s /**** SNMP scan cache ****/ |
103 | { | |
104 | http_addr_t address; /* Address of device */ | |
105 | char *addrname, /* Name of device */ | |
106 | *uri, /* device-uri */ | |
107 | *id, /* device-id */ | |
7a14d768 | 108 | *info, /* device-info */ |
749b1e90 | 109 | *location, /* device-location */ |
89d46774 | 110 | *make_and_model; /* device-make-and-model */ |
749b1e90 | 111 | int sent; /* Has this device been listed? */ |
89d46774 | 112 | } snmp_cache_t; |
113 | ||
89d46774 | 114 | |
115 | /* | |
116 | * Local functions... | |
117 | */ | |
118 | ||
119 | static char *add_array(cups_array_t *a, const char *s); | |
120 | static void add_cache(http_addr_t *addr, const char *addrname, | |
121 | const char *uri, const char *id, | |
122 | const char *make_and_model); | |
b94498cf | 123 | static device_uri_t *add_device_uri(char *value); |
89d46774 | 124 | static void alarm_handler(int sig); |
89d46774 | 125 | static int compare_cache(snmp_cache_t *a, snmp_cache_t *b); |
126 | static void debug_printf(const char *format, ...); | |
127 | static void fix_make_model(char *make_model, | |
128 | const char *old_make_model, | |
129 | int make_model_size); | |
130 | static void free_array(cups_array_t *a); | |
131 | static void free_cache(void); | |
132 | static http_addrlist_t *get_interface_addresses(const char *ifname); | |
d09495fa | 133 | static void list_device(snmp_cache_t *cache); |
89d46774 | 134 | static const char *password_cb(const char *prompt); |
135 | static void probe_device(snmp_cache_t *device); | |
136 | static void read_snmp_conf(const char *address); | |
137 | static void read_snmp_response(int fd); | |
138 | static double run_time(void); | |
22c9029b | 139 | static void scan_devices(int ipv4, int ipv6); |
89d46774 | 140 | static int try_connect(http_addr_t *addr, const char *addrname, |
141 | int port); | |
142 | static void update_cache(snmp_cache_t *device, const char *uri, | |
143 | const char *id, const char *make_model); | |
144 | ||
145 | ||
146 | /* | |
147 | * Local globals... | |
148 | */ | |
149 | ||
150 | static cups_array_t *Addresses = NULL; | |
151 | static cups_array_t *Communities = NULL; | |
152 | static cups_array_t *Devices = NULL; | |
153 | static int DebugLevel = 0; | |
749b1e90 MS |
154 | static const int DescriptionOID[] = { CUPS_OID_hrDeviceDescr, 1, -1 }; |
155 | static const int LocationOID[] = { CUPS_OID_sysLocation, 0, -1 }; | |
7a14d768 | 156 | static const int DeviceTypeOID[] = { CUPS_OID_hrDeviceType, 1, -1 }; |
7a14d768 | 157 | static const int DeviceIdOID[] = { CUPS_OID_ppmPrinterIEEE1284DeviceId, 1, -1 }; |
749b1e90 MS |
158 | static const int UriOID[] = { CUPS_OID_ppmPortServiceNameOrURI, 1, 1, -1 }; |
159 | static const int LexmarkProductOID[] = { 1,3,6,1,4,1,641,2,1,2,1,2,1,-1 }; | |
160 | static const int LexmarkProductOID2[] = { 1,3,6,1,4,1,674,10898,100,2,1,2,1,2,1,-1 }; | |
161 | static const int LexmarkDeviceIdOID[] = { 1,3,6,1,4,1,641,2,1,2,1,3,1,-1 }; | |
162 | static const int XeroxProductOID[] = { 1,3,6,1,4,1,128,2,1,3,1,2,0,-1 }; | |
b94498cf | 163 | static cups_array_t *DeviceURIs = NULL; |
89d46774 | 164 | static int HostNameLookups = 0; |
ae71f5de | 165 | static int MaxRunTime = 120; |
89d46774 | 166 | static struct timeval StartTime; |
167 | ||
168 | ||
169 | /* | |
170 | * 'main()' - Discover printers via SNMP. | |
171 | */ | |
172 | ||
173 | int /* O - Exit status */ | |
174 | main(int argc, /* I - Number of command-line arguments (6 or 7) */ | |
175 | char *argv[]) /* I - Command-line arguments */ | |
176 | { | |
22c9029b MS |
177 | int ipv4, /* SNMP IPv4 socket */ |
178 | ipv6; /* SNMP IPv6 socket */ | |
d09495fa | 179 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) |
180 | struct sigaction action; /* Actions for POSIX signals */ | |
181 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
89d46774 | 182 | |
183 | ||
184 | /* | |
185 | * Check command-line options... | |
186 | */ | |
187 | ||
188 | if (argc > 2) | |
189 | { | |
0837b7e8 | 190 | _cupsLangPuts(stderr, _("Usage: snmp [host-or-ip-address]")); |
89d46774 | 191 | return (1); |
192 | } | |
193 | ||
194 | /* | |
195 | * Set the password callback for IPP operations... | |
196 | */ | |
197 | ||
198 | cupsSetPasswordCB(password_cb); | |
199 | ||
d09495fa | 200 | /* |
201 | * Catch SIGALRM signals... | |
202 | */ | |
203 | ||
204 | #ifdef HAVE_SIGSET | |
205 | sigset(SIGALRM, alarm_handler); | |
206 | #elif defined(HAVE_SIGACTION) | |
207 | memset(&action, 0, sizeof(action)); | |
208 | ||
209 | sigemptyset(&action.sa_mask); | |
210 | sigaddset(&action.sa_mask, SIGALRM); | |
211 | action.sa_handler = alarm_handler; | |
212 | sigaction(SIGALRM, &action, NULL); | |
213 | #else | |
214 | signal(SIGALRM, alarm_handler); | |
215 | #endif /* HAVE_SIGSET */ | |
216 | ||
89d46774 | 217 | /* |
218 | * Open the SNMP socket... | |
219 | */ | |
220 | ||
22c9029b | 221 | if ((ipv4 = _cupsSNMPOpen(AF_INET)) < 0) |
89d46774 | 222 | return (1); |
223 | ||
22c9029b MS |
224 | #ifdef AF_INET6 |
225 | if ((ipv6 = _cupsSNMPOpen(AF_INET6)) < 0) | |
37e7e6e0 | 226 | perror("DEBUG: Unable to create IPv6 socket"); |
22c9029b MS |
227 | #else |
228 | ipv6 = -1; | |
229 | #endif /* AF_INET6 */ | |
230 | ||
89d46774 | 231 | /* |
232 | * Read the configuration file and any cache data... | |
233 | */ | |
234 | ||
235 | read_snmp_conf(argv[1]); | |
236 | ||
7a14d768 | 237 | _cupsSNMPSetDebug(DebugLevel); |
91c84a35 | 238 | |
89d46774 | 239 | Devices = cupsArrayNew((cups_array_func_t)compare_cache, NULL); |
240 | ||
241 | /* | |
242 | * Scan for devices... | |
243 | */ | |
244 | ||
22c9029b | 245 | scan_devices(ipv4, ipv6); |
89d46774 | 246 | |
89d46774 | 247 | /* |
248 | * Close, free, and return with no errors... | |
249 | */ | |
250 | ||
22c9029b MS |
251 | _cupsSNMPClose(ipv4); |
252 | if (ipv6 >= 0) | |
253 | _cupsSNMPClose(ipv6); | |
89d46774 | 254 | |
255 | free_array(Addresses); | |
256 | free_array(Communities); | |
257 | free_cache(); | |
258 | ||
259 | return (0); | |
260 | } | |
261 | ||
262 | ||
263 | /* | |
264 | * 'add_array()' - Add a string to an array. | |
265 | */ | |
266 | ||
267 | static char * /* O - New string */ | |
268 | add_array(cups_array_t *a, /* I - Array */ | |
269 | const char *s) /* I - String to add */ | |
270 | { | |
271 | char *dups; /* New string */ | |
272 | ||
273 | ||
274 | dups = strdup(s); | |
275 | ||
276 | cupsArrayAdd(a, dups); | |
277 | ||
278 | return (dups); | |
279 | } | |
280 | ||
281 | ||
282 | /* | |
283 | * 'add_cache()' - Add a cached device... | |
284 | */ | |
285 | ||
286 | static void | |
287 | add_cache(http_addr_t *addr, /* I - Device IP address */ | |
288 | const char *addrname, /* I - IP address or name string */ | |
289 | const char *uri, /* I - Device URI */ | |
290 | const char *id, /* I - 1284 device ID */ | |
291 | const char *make_and_model) /* I - Make and model */ | |
292 | { | |
293 | snmp_cache_t *temp; /* New device entry */ | |
294 | ||
295 | ||
296 | debug_printf("DEBUG: add_cache(addr=%p, addrname=\"%s\", uri=\"%s\", " | |
297 | "id=\"%s\", make_and_model=\"%s\")\n", | |
d09495fa | 298 | addr, addrname, uri ? uri : "(null)", id ? id : "(null)", |
89d46774 | 299 | make_and_model ? make_and_model : "(null)"); |
300 | ||
301 | temp = calloc(1, sizeof(snmp_cache_t)); | |
302 | memcpy(&(temp->address), addr, sizeof(temp->address)); | |
303 | ||
304 | temp->addrname = strdup(addrname); | |
305 | ||
306 | if (uri) | |
307 | temp->uri = strdup(uri); | |
308 | ||
309 | if (id) | |
310 | temp->id = strdup(id); | |
311 | ||
312 | if (make_and_model) | |
313 | temp->make_and_model = strdup(make_and_model); | |
314 | ||
315 | cupsArrayAdd(Devices, temp); | |
d09495fa | 316 | |
317 | if (uri) | |
318 | list_device(temp); | |
89d46774 | 319 | } |
320 | ||
321 | ||
b94498cf | 322 | /* |
323 | * 'add_device_uri()' - Add a device URI to the cache. | |
324 | * | |
325 | * The value string is modified (chopped up) as needed. | |
326 | */ | |
327 | ||
328 | static device_uri_t * /* O - Device URI */ | |
329 | add_device_uri(char *value) /* I - Value from snmp.conf */ | |
330 | { | |
331 | device_uri_t *device_uri; /* Device URI */ | |
332 | char *start; /* Start of value */ | |
333 | ||
334 | ||
335 | /* | |
336 | * Allocate memory as needed... | |
337 | */ | |
338 | ||
339 | if (!DeviceURIs) | |
340 | DeviceURIs = cupsArrayNew(NULL, NULL); | |
341 | ||
342 | if (!DeviceURIs) | |
343 | return (NULL); | |
344 | ||
345 | if ((device_uri = calloc(1, sizeof(device_uri_t))) == NULL) | |
346 | return (NULL); | |
347 | ||
348 | if ((device_uri->uris = cupsArrayNew(NULL, NULL)) == NULL) | |
349 | { | |
350 | free(device_uri); | |
351 | return (NULL); | |
352 | } | |
353 | ||
354 | /* | |
355 | * Scan the value string for the regular expression and URI(s)... | |
356 | */ | |
357 | ||
358 | value ++; /* Skip leading " */ | |
359 | ||
360 | for (start = value; *value && *value != '\"'; value ++) | |
361 | if (*value == '\\' && value[1]) | |
362 | _cups_strcpy(value, value + 1); | |
363 | ||
364 | if (!*value) | |
365 | { | |
366 | fputs("ERROR: Missing end quote for DeviceURI!\n", stderr); | |
367 | ||
368 | cupsArrayDelete(device_uri->uris); | |
369 | free(device_uri); | |
370 | ||
371 | return (NULL); | |
372 | } | |
373 | ||
374 | *value++ = '\0'; | |
375 | ||
376 | if (regcomp(&(device_uri->re), start, REG_EXTENDED | REG_ICASE)) | |
377 | { | |
378 | fputs("ERROR: Bad regular expression for DeviceURI!\n", stderr); | |
379 | ||
380 | cupsArrayDelete(device_uri->uris); | |
381 | free(device_uri); | |
382 | ||
383 | return (NULL); | |
384 | } | |
385 | ||
386 | while (*value) | |
387 | { | |
388 | while (isspace(*value & 255)) | |
389 | value ++; | |
390 | ||
391 | if (!*value) | |
392 | break; | |
393 | ||
394 | for (start = value; *value && !isspace(*value & 255); value ++); | |
395 | ||
396 | if (*value) | |
397 | *value++ = '\0'; | |
398 | ||
399 | cupsArrayAdd(device_uri->uris, strdup(start)); | |
400 | } | |
401 | ||
402 | /* | |
403 | * Add the device URI to the list and return it... | |
404 | */ | |
405 | ||
406 | cupsArrayAdd(DeviceURIs, device_uri); | |
407 | ||
408 | return (device_uri); | |
409 | } | |
410 | ||
411 | ||
89d46774 | 412 | /* |
413 | * 'alarm_handler()' - Handle alarm signals... | |
414 | */ | |
415 | ||
416 | static void | |
417 | alarm_handler(int sig) /* I - Signal number */ | |
418 | { | |
419 | /* | |
420 | * Do nothing... | |
421 | */ | |
422 | ||
423 | (void)sig; | |
424 | ||
d09495fa | 425 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) |
426 | signal(SIGALRM, alarm_handler); | |
427 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
428 | ||
89d46774 | 429 | if (DebugLevel) |
430 | write(2, "DEBUG: ALARM!\n", 14); | |
431 | } | |
432 | ||
433 | ||
89d46774 | 434 | /* |
435 | * 'compare_cache()' - Compare two cache entries. | |
436 | */ | |
437 | ||
438 | static int /* O - Result of comparison */ | |
439 | compare_cache(snmp_cache_t *a, /* I - First cache entry */ | |
440 | snmp_cache_t *b) /* I - Second cache entry */ | |
441 | { | |
88f9aafc | 442 | return (_cups_strcasecmp(a->addrname, b->addrname)); |
89d46774 | 443 | } |
444 | ||
445 | ||
446 | /* | |
447 | * 'debug_printf()' - Display some debugging information. | |
448 | */ | |
449 | ||
450 | static void | |
451 | debug_printf(const char *format, /* I - Printf-style format string */ | |
452 | ...) /* I - Additional arguments as needed */ | |
453 | { | |
454 | va_list ap; /* Pointer to arguments */ | |
455 | ||
456 | ||
457 | if (!DebugLevel) | |
458 | return; | |
459 | ||
460 | va_start(ap, format); | |
461 | vfprintf(stderr, format, ap); | |
462 | va_end(ap); | |
463 | } | |
464 | ||
465 | ||
466 | /* | |
467 | * 'fix_make_model()' - Fix common problems in the make-and-model string. | |
468 | */ | |
469 | ||
470 | static void | |
471 | fix_make_model( | |
472 | char *make_model, /* I - New make-and-model string */ | |
473 | const char *old_make_model, /* I - Old make-and-model string */ | |
474 | int make_model_size) /* I - Size of new string buffer */ | |
475 | { | |
a74454a7 | 476 | char *mmptr; /* Pointer into make-and-model string */ |
89d46774 | 477 | |
478 | ||
479 | /* | |
480 | * Fix some common problems with the make-and-model string so | |
481 | * that printer driver detection works better... | |
482 | */ | |
483 | ||
88f9aafc | 484 | if (!_cups_strncasecmp(old_make_model, "Hewlett-Packard", 15)) |
89d46774 | 485 | { |
486 | /* | |
487 | * Strip leading Hewlett-Packard and hp prefixes and replace | |
488 | * with a single HP manufacturer prefix... | |
489 | */ | |
490 | ||
a74454a7 | 491 | mmptr = (char *)old_make_model + 15; |
89d46774 | 492 | |
493 | while (isspace(*mmptr & 255)) | |
494 | mmptr ++; | |
495 | ||
88f9aafc | 496 | if (!_cups_strncasecmp(mmptr, "hp", 2)) |
89d46774 | 497 | { |
498 | mmptr += 2; | |
499 | ||
500 | while (isspace(*mmptr & 255)) | |
501 | mmptr ++; | |
502 | } | |
503 | ||
504 | make_model[0] = 'H'; | |
505 | make_model[1] = 'P'; | |
506 | make_model[2] = ' '; | |
07623986 | 507 | strlcpy(make_model + 3, mmptr, (size_t)make_model_size - 3); |
89d46774 | 508 | } |
88f9aafc | 509 | else if (!_cups_strncasecmp(old_make_model, "deskjet", 7)) |
07623986 | 510 | snprintf(make_model, (size_t)make_model_size, "HP DeskJet%s", old_make_model + 7); |
88f9aafc | 511 | else if (!_cups_strncasecmp(old_make_model, "officejet", 9)) |
07623986 | 512 | snprintf(make_model, (size_t)make_model_size, "HP OfficeJet%s", old_make_model + 9); |
88f9aafc | 513 | else if (!_cups_strncasecmp(old_make_model, "stylus_pro_", 11)) |
07623986 | 514 | snprintf(make_model, (size_t)make_model_size, "EPSON Stylus Pro %s", old_make_model + 11); |
89d46774 | 515 | else |
07623986 | 516 | strlcpy(make_model, old_make_model, (size_t)make_model_size); |
89d46774 | 517 | |
518 | if ((mmptr = strstr(make_model, ", Inc.,")) != NULL) | |
519 | { | |
520 | /* | |
521 | * Strip inc. from name, e.g. "Tektronix, Inc., Phaser 560" | |
522 | * becomes "Tektronix Phaser 560"... | |
523 | */ | |
524 | ||
a74454a7 | 525 | _cups_strcpy(mmptr, mmptr + 7); |
526 | } | |
527 | ||
d09495fa | 528 | if ((mmptr = strstr(make_model, " Network")) != NULL) |
529 | { | |
530 | /* | |
531 | * Drop unnecessary informational text, e.g. "Xerox DocuPrint N2025 | |
532 | * Network LaserJet - 2.12" becomes "Xerox DocuPrint N2025"... | |
533 | */ | |
534 | ||
535 | *mmptr = '\0'; | |
536 | } | |
537 | ||
a74454a7 | 538 | if ((mmptr = strchr(make_model, ',')) != NULL) |
539 | { | |
540 | /* | |
541 | * Drop anything after a trailing comma... | |
542 | */ | |
543 | ||
544 | *mmptr = '\0'; | |
89d46774 | 545 | } |
546 | } | |
547 | ||
548 | ||
549 | /* | |
550 | * 'free_array()' - Free an array of strings. | |
551 | */ | |
552 | ||
553 | static void | |
554 | free_array(cups_array_t *a) /* I - Array */ | |
555 | { | |
556 | char *s; /* Current string */ | |
557 | ||
558 | ||
559 | for (s = (char *)cupsArrayFirst(a); s; s = (char *)cupsArrayNext(a)) | |
560 | free(s); | |
561 | ||
562 | cupsArrayDelete(a); | |
563 | } | |
564 | ||
565 | ||
566 | /* | |
567 | * 'free_cache()' - Free the array of cached devices. | |
568 | */ | |
569 | ||
570 | static void | |
571 | free_cache(void) | |
572 | { | |
573 | snmp_cache_t *cache; /* Cached device */ | |
574 | ||
575 | ||
576 | for (cache = (snmp_cache_t *)cupsArrayFirst(Devices); | |
577 | cache; | |
578 | cache = (snmp_cache_t *)cupsArrayNext(Devices)) | |
579 | { | |
580 | free(cache->addrname); | |
581 | ||
582 | if (cache->uri) | |
583 | free(cache->uri); | |
584 | ||
585 | if (cache->id) | |
586 | free(cache->id); | |
587 | ||
588 | if (cache->make_and_model) | |
589 | free(cache->make_and_model); | |
590 | ||
591 | free(cache); | |
592 | } | |
593 | ||
594 | cupsArrayDelete(Devices); | |
595 | Devices = NULL; | |
596 | } | |
597 | ||
598 | ||
599 | /* | |
600 | * 'get_interface_addresses()' - Get the broadcast address(es) associated | |
601 | * with an interface. | |
602 | */ | |
603 | ||
604 | static http_addrlist_t * /* O - List of addresses */ | |
605 | get_interface_addresses( | |
606 | const char *ifname) /* I - Interface name */ | |
607 | { | |
608 | struct ifaddrs *addrs, /* Interface address list */ | |
609 | *addr; /* Current interface address */ | |
610 | http_addrlist_t *first, /* First address in list */ | |
611 | *last, /* Last address in list */ | |
612 | *current; /* Current address */ | |
613 | ||
614 | ||
615 | if (getifaddrs(&addrs) < 0) | |
616 | return (NULL); | |
617 | ||
618 | for (addr = addrs, first = NULL, last = NULL; addr; addr = addr->ifa_next) | |
619 | if ((addr->ifa_flags & IFF_BROADCAST) && addr->ifa_broadaddr && | |
620 | addr->ifa_broadaddr->sa_family == AF_INET && | |
621 | (!ifname || !strcmp(ifname, addr->ifa_name))) | |
622 | { | |
623 | current = calloc(1, sizeof(http_addrlist_t)); | |
624 | ||
625 | memcpy(&(current->addr), addr->ifa_broadaddr, | |
626 | sizeof(struct sockaddr_in)); | |
627 | ||
628 | if (!last) | |
629 | first = current; | |
630 | else | |
631 | last->next = current; | |
632 | ||
633 | last = current; | |
634 | } | |
635 | ||
636 | freeifaddrs(addrs); | |
637 | ||
638 | return (first); | |
639 | } | |
640 | ||
641 | ||
89d46774 | 642 | /* |
d09495fa | 643 | * 'list_device()' - List a device we found... |
89d46774 | 644 | */ |
645 | ||
646 | static void | |
d09495fa | 647 | list_device(snmp_cache_t *cache) /* I - Cached device */ |
89d46774 | 648 | { |
d09495fa | 649 | if (cache->uri) |
749b1e90 MS |
650 | cupsBackendReport("network", cache->uri, cache->make_and_model, |
651 | cache->info, cache->id, cache->location); | |
89d46774 | 652 | } |
653 | ||
654 | ||
89d46774 | 655 | /* |
656 | * 'password_cb()' - Handle authentication requests. | |
657 | * | |
658 | * All we do right now is return NULL, indicating that no authentication | |
659 | * is possible. | |
660 | */ | |
661 | ||
662 | static const char * /* O - Password (NULL) */ | |
663 | password_cb(const char *prompt) /* I - Prompt message */ | |
664 | { | |
665 | (void)prompt; /* Anti-compiler-warning-code */ | |
666 | ||
667 | return (NULL); | |
668 | } | |
669 | ||
670 | ||
671 | /* | |
672 | * 'probe_device()' - Probe a device to discover whether it is a printer. | |
673 | * | |
674 | * TODO: Try using the Port Monitor MIB to discover the correct protocol | |
675 | * to use - first need a commercially-available printer that supports | |
676 | * it, though... | |
677 | */ | |
678 | ||
679 | static void | |
680 | probe_device(snmp_cache_t *device) /* I - Device */ | |
681 | { | |
b94498cf | 682 | char uri[1024], /* Full device URI */ |
683 | *uriptr, /* Pointer into URI */ | |
684 | *format; /* Format string for device */ | |
685 | device_uri_t *device_uri; /* Current DeviceURI match */ | |
89d46774 | 686 | |
687 | ||
89d46774 | 688 | debug_printf("DEBUG: %.3f Probing %s...\n", run_time(), device->addrname); |
689 | ||
b94498cf | 690 | #ifdef __APPLE__ |
691 | /* | |
22c9029b | 692 | * If the printer supports Bonjour/mDNS, don't report it from the SNMP backend. |
b94498cf | 693 | */ |
d09495fa | 694 | |
b94498cf | 695 | if (!try_connect(&(device->address), device->addrname, 5353)) |
d09495fa | 696 | { |
b94498cf | 697 | debug_printf("DEBUG: %s supports mDNS, not reporting!\n", device->addrname); |
698 | return; | |
d09495fa | 699 | } |
b94498cf | 700 | #endif /* __APPLE__ */ |
d09495fa | 701 | |
b94498cf | 702 | /* |
703 | * Lookup the device in the match table... | |
704 | */ | |
89d46774 | 705 | |
b94498cf | 706 | for (device_uri = (device_uri_t *)cupsArrayFirst(DeviceURIs); |
707 | device_uri; | |
708 | device_uri = (device_uri_t *)cupsArrayNext(DeviceURIs)) | |
ac884b6a MS |
709 | if (device->make_and_model && |
710 | !regexec(&(device_uri->re), device->make_and_model, 0, NULL, 0)) | |
89d46774 | 711 | { |
d09495fa | 712 | /* |
b94498cf | 713 | * Found a match, add the URIs... |
89d46774 | 714 | */ |
715 | ||
b94498cf | 716 | for (format = (char *)cupsArrayFirst(device_uri->uris); |
717 | format; | |
718 | format = (char *)cupsArrayNext(device_uri->uris)) | |
89d46774 | 719 | { |
b94498cf | 720 | for (uriptr = uri; *format && uriptr < (uri + sizeof(uri) - 1);) |
721 | if (*format == '%' && format[1] == 's') | |
89d46774 | 722 | { |
b94498cf | 723 | /* |
724 | * Insert hostname/address... | |
725 | */ | |
89d46774 | 726 | |
7e86f2f6 | 727 | strlcpy(uriptr, device->addrname, sizeof(uri) - (size_t)(uriptr - uri)); |
b94498cf | 728 | uriptr += strlen(uriptr); |
729 | format += 2; | |
730 | } | |
731 | else | |
732 | *uriptr++ = *format++; | |
89d46774 | 733 | |
b94498cf | 734 | *uriptr = '\0'; |
89d46774 | 735 | |
b94498cf | 736 | update_cache(device, uri, NULL, NULL); |
89d46774 | 737 | } |
738 | ||
89d46774 | 739 | return; |
b94498cf | 740 | } |
89d46774 | 741 | |
742 | /* | |
b94498cf | 743 | * Then try the standard ports... |
89d46774 | 744 | */ |
745 | ||
746 | if (!try_connect(&(device->address), device->addrname, 9100)) | |
747 | { | |
748 | debug_printf("DEBUG: %s supports AppSocket!\n", device->addrname); | |
749 | ||
750 | snprintf(uri, sizeof(uri), "socket://%s", device->addrname); | |
751 | update_cache(device, uri, NULL, NULL); | |
752 | } | |
753 | else if (!try_connect(&(device->address), device->addrname, 515)) | |
754 | { | |
755 | debug_printf("DEBUG: %s supports LPD!\n", device->addrname); | |
756 | ||
757 | snprintf(uri, sizeof(uri), "lpd://%s/", device->addrname); | |
758 | update_cache(device, uri, NULL, NULL); | |
759 | } | |
760 | } | |
761 | ||
762 | ||
763 | /* | |
764 | * 'read_snmp_conf()' - Read the snmp.conf file. | |
765 | */ | |
766 | ||
767 | static void | |
768 | read_snmp_conf(const char *address) /* I - Single address to probe */ | |
769 | { | |
770 | cups_file_t *fp; /* File pointer */ | |
771 | char filename[1024], /* Filename */ | |
772 | line[1024], /* Line from file */ | |
773 | *value; /* Value on line */ | |
774 | int linenum; /* Line number */ | |
775 | const char *cups_serverroot; /* CUPS_SERVERROOT env var */ | |
776 | const char *debug; /* CUPS_DEBUG_LEVEL env var */ | |
d09495fa | 777 | const char *runtime; /* CUPS_MAX_RUN_TIME env var */ |
89d46774 | 778 | |
779 | ||
780 | /* | |
781 | * Initialize the global address and community lists... | |
782 | */ | |
783 | ||
784 | Addresses = cupsArrayNew(NULL, NULL); | |
785 | Communities = cupsArrayNew(NULL, NULL); | |
786 | ||
787 | if (address) | |
788 | add_array(Addresses, address); | |
789 | ||
790 | if ((debug = getenv("CUPS_DEBUG_LEVEL")) != NULL) | |
791 | DebugLevel = atoi(debug); | |
792 | ||
d09495fa | 793 | if ((runtime = getenv("CUPS_MAX_RUN_TIME")) != NULL) |
794 | MaxRunTime = atoi(runtime); | |
795 | ||
89d46774 | 796 | /* |
797 | * Find the snmp.conf file... | |
798 | */ | |
799 | ||
800 | if ((cups_serverroot = getenv("CUPS_SERVERROOT")) == NULL) | |
801 | cups_serverroot = CUPS_SERVERROOT; | |
802 | ||
803 | snprintf(filename, sizeof(filename), "%s/snmp.conf", cups_serverroot); | |
804 | ||
805 | if ((fp = cupsFileOpen(filename, "r")) != NULL) | |
806 | { | |
807 | /* | |
808 | * Read the snmp.conf file... | |
809 | */ | |
810 | ||
811 | linenum = 0; | |
812 | ||
813 | while (cupsFileGetConf(fp, line, sizeof(line), &value, &linenum)) | |
814 | { | |
815 | if (!value) | |
816 | fprintf(stderr, "ERROR: Missing value on line %d of %s!\n", linenum, | |
817 | filename); | |
88f9aafc | 818 | else if (!_cups_strcasecmp(line, "Address")) |
89d46774 | 819 | { |
820 | if (!address) | |
821 | add_array(Addresses, value); | |
822 | } | |
88f9aafc | 823 | else if (!_cups_strcasecmp(line, "Community")) |
89d46774 | 824 | add_array(Communities, value); |
88f9aafc | 825 | else if (!_cups_strcasecmp(line, "DebugLevel")) |
89d46774 | 826 | DebugLevel = atoi(value); |
88f9aafc | 827 | else if (!_cups_strcasecmp(line, "DeviceURI")) |
b94498cf | 828 | { |
829 | if (*value != '\"') | |
830 | fprintf(stderr, | |
831 | "ERROR: Missing double quote for regular expression on " | |
832 | "line %d of %s!\n", linenum, filename); | |
833 | else | |
834 | add_device_uri(value); | |
835 | } | |
88f9aafc MS |
836 | else if (!_cups_strcasecmp(line, "HostNameLookups")) |
837 | HostNameLookups = !_cups_strcasecmp(value, "on") || | |
838 | !_cups_strcasecmp(value, "yes") || | |
839 | !_cups_strcasecmp(value, "true") || | |
840 | !_cups_strcasecmp(value, "double"); | |
841 | else if (!_cups_strcasecmp(line, "MaxRunTime")) | |
d09495fa | 842 | MaxRunTime = atoi(value); |
89d46774 | 843 | else |
844 | fprintf(stderr, "ERROR: Unknown directive %s on line %d of %s!\n", | |
845 | line, linenum, filename); | |
846 | } | |
847 | ||
848 | cupsFileClose(fp); | |
849 | } | |
850 | ||
851 | /* | |
852 | * Use defaults if parameters are undefined... | |
853 | */ | |
854 | ||
855 | if (cupsArrayCount(Addresses) == 0) | |
856 | { | |
bc44d920 | 857 | /* |
858 | * If we have no addresses, exit immediately... | |
859 | */ | |
860 | ||
861 | fprintf(stderr, | |
862 | "DEBUG: No address specified and no Address line in %s...\n", | |
863 | filename); | |
864 | exit(0); | |
89d46774 | 865 | } |
866 | ||
867 | if (cupsArrayCount(Communities) == 0) | |
868 | { | |
869 | fputs("INFO: Using default SNMP Community public\n", stderr); | |
870 | add_array(Communities, "public"); | |
871 | } | |
872 | } | |
873 | ||
874 | ||
875 | /* | |
876 | * 'read_snmp_response()' - Read and parse a SNMP response... | |
877 | */ | |
878 | ||
879 | static void | |
880 | read_snmp_response(int fd) /* I - SNMP socket file descriptor */ | |
881 | { | |
89d46774 | 882 | char addrname[256]; /* Source address name */ |
91c84a35 | 883 | cups_snmp_t packet; /* Decoded packet */ |
89d46774 | 884 | snmp_cache_t key, /* Search key */ |
885 | *device; /* Matching device */ | |
886 | ||
887 | ||
888 | /* | |
889 | * Read the response data... | |
890 | */ | |
891 | ||
7a14d768 | 892 | if (!_cupsSNMPRead(fd, &packet, -1.0)) |
89d46774 | 893 | { |
894 | fprintf(stderr, "ERROR: Unable to read data from socket: %s\n", | |
895 | strerror(errno)); | |
896 | return; | |
897 | } | |
898 | ||
899 | if (HostNameLookups) | |
91c84a35 | 900 | httpAddrLookup(&(packet.address), addrname, sizeof(addrname)); |
89d46774 | 901 | else |
91c84a35 | 902 | httpAddrString(&(packet.address), addrname, sizeof(addrname)); |
89d46774 | 903 | |
91c84a35 | 904 | debug_printf("DEBUG: %.3f Received data from %s...\n", run_time(), addrname); |
89d46774 | 905 | |
906 | /* | |
907 | * Look for the response status code in the SNMP message header... | |
908 | */ | |
909 | ||
91c84a35 | 910 | if (packet.error) |
89d46774 | 911 | { |
91c84a35 MS |
912 | fprintf(stderr, "ERROR: Bad SNMP packet from %s: %s\n", addrname, |
913 | packet.error); | |
89d46774 | 914 | |
915 | return; | |
916 | } | |
917 | ||
918 | debug_printf("DEBUG: community=\"%s\"\n", packet.community); | |
919 | debug_printf("DEBUG: request-id=%d\n", packet.request_id); | |
920 | debug_printf("DEBUG: error-status=%d\n", packet.error_status); | |
921 | ||
771bd8cb | 922 | if (packet.error_status && packet.request_id != DEVICE_TYPE) |
89d46774 | 923 | return; |
924 | ||
925 | /* | |
926 | * Find a matching device in the cache... | |
927 | */ | |
928 | ||
8ca02f3c | 929 | key.addrname = addrname; |
930 | device = (snmp_cache_t *)cupsArrayFind(Devices, &key); | |
89d46774 | 931 | |
932 | /* | |
933 | * Process the message... | |
934 | */ | |
935 | ||
749b1e90 | 936 | switch (packet.request_id) |
89d46774 | 937 | { |
749b1e90 MS |
938 | case DEVICE_TYPE : |
939 | /* | |
940 | * Got the device type response... | |
941 | */ | |
942 | ||
943 | if (device) | |
944 | { | |
945 | debug_printf("DEBUG: Discarding duplicate device type for \"%s\"...\n", | |
946 | addrname); | |
947 | return; | |
948 | } | |
949 | ||
950 | /* | |
951 | * Add the device and request the device data... | |
952 | */ | |
953 | ||
954 | add_cache(&(packet.address), addrname, NULL, NULL, NULL); | |
955 | ||
956 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, | |
957 | packet.community, CUPS_ASN1_GET_REQUEST, | |
958 | DEVICE_DESCRIPTION, DescriptionOID); | |
959 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, | |
960 | packet.community, CUPS_ASN1_GET_REQUEST, | |
961 | DEVICE_ID, DeviceIdOID); | |
962 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, | |
963 | packet.community, CUPS_ASN1_GET_REQUEST, | |
964 | DEVICE_URI, UriOID); | |
965 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, | |
966 | packet.community, CUPS_ASN1_GET_REQUEST, | |
967 | DEVICE_LOCATION, LocationOID); | |
968 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, | |
969 | packet.community, CUPS_ASN1_GET_REQUEST, | |
970 | DEVICE_PRODUCT, LexmarkProductOID); | |
971 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, | |
972 | packet.community, CUPS_ASN1_GET_REQUEST, | |
973 | DEVICE_PRODUCT, LexmarkProductOID2); | |
974 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, | |
975 | packet.community, CUPS_ASN1_GET_REQUEST, | |
ef55b745 | 976 | DEVICE_ID, LexmarkDeviceIdOID); |
749b1e90 MS |
977 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, |
978 | packet.community, CUPS_ASN1_GET_REQUEST, | |
979 | DEVICE_PRODUCT, XeroxProductOID); | |
980 | break; | |
981 | ||
982 | case DEVICE_DESCRIPTION : | |
983 | if (device && packet.object_type == CUPS_ASN1_OCTET_STRING) | |
984 | { | |
985 | /* | |
986 | * Update an existing cache entry... | |
987 | */ | |
988 | ||
989 | char make_model[256]; /* Make and model */ | |
990 | ||
991 | ||
d1c13e16 MS |
992 | if (strchr((char *)packet.object_value.string.bytes, ':') && |
993 | strchr((char *)packet.object_value.string.bytes, ';')) | |
749b1e90 MS |
994 | { |
995 | /* | |
996 | * Description is the IEEE-1284 device ID... | |
997 | */ | |
89d46774 | 998 | |
3dd9c340 MS |
999 | char *ptr; /* Pointer into device ID */ |
1000 | ||
1001 | for (ptr = (char *)packet.object_value.string.bytes; *ptr; ptr ++) | |
1002 | if (*ptr == '\n') | |
1003 | *ptr = ';'; /* A lot of bad printers put a newline */ | |
749b1e90 | 1004 | if (!device->id) |
d1c13e16 | 1005 | device->id = strdup((char *)packet.object_value.string.bytes); |
89d46774 | 1006 | |
d1c13e16 MS |
1007 | backendGetMakeModel((char *)packet.object_value.string.bytes, |
1008 | make_model, sizeof(make_model)); | |
89d46774 | 1009 | |
749b1e90 MS |
1010 | if (device->info) |
1011 | free(device->info); | |
89d46774 | 1012 | |
749b1e90 MS |
1013 | device->info = strdup(make_model); |
1014 | } | |
1015 | else | |
1016 | { | |
1017 | /* | |
1018 | * Description is plain text... | |
1019 | */ | |
89d46774 | 1020 | |
d1c13e16 | 1021 | fix_make_model(make_model, (char *)packet.object_value.string.bytes, |
749b1e90 | 1022 | sizeof(make_model)); |
89d46774 | 1023 | |
749b1e90 MS |
1024 | if (device->info) |
1025 | free(device->info); | |
89d46774 | 1026 | |
d1c13e16 | 1027 | device->info = strdup((char *)packet.object_value.string.bytes); |
749b1e90 | 1028 | } |
89d46774 | 1029 | |
749b1e90 MS |
1030 | if (!device->make_and_model) |
1031 | device->make_and_model = strdup(make_model); | |
1032 | } | |
1033 | break; | |
89d46774 | 1034 | |
749b1e90 | 1035 | case DEVICE_ID : |
ef55b745 MS |
1036 | if (device && packet.object_type == CUPS_ASN1_OCTET_STRING && |
1037 | (!device->id || | |
1038 | strlen(device->id) < packet.object_value.string.num_bytes)) | |
749b1e90 MS |
1039 | { |
1040 | /* | |
1041 | * Update an existing cache entry... | |
1042 | */ | |
7a14d768 | 1043 | |
749b1e90 | 1044 | char make_model[256]; /* Make and model */ |
3dd9c340 | 1045 | char *ptr; /* Pointer into device ID */ |
89d46774 | 1046 | |
3dd9c340 MS |
1047 | for (ptr = (char *)packet.object_value.string.bytes; *ptr; ptr ++) |
1048 | if (*ptr == '\n') | |
1049 | *ptr = ';'; /* A lot of bad printers put a newline */ | |
749b1e90 MS |
1050 | if (device->id) |
1051 | free(device->id); | |
89d46774 | 1052 | |
d1c13e16 | 1053 | device->id = strdup((char *)packet.object_value.string.bytes); |
7a14d768 | 1054 | |
749b1e90 MS |
1055 | /* |
1056 | * Convert the ID to a make and model string... | |
1057 | */ | |
7a14d768 | 1058 | |
d1c13e16 MS |
1059 | backendGetMakeModel((char *)packet.object_value.string.bytes, |
1060 | make_model, sizeof(make_model)); | |
749b1e90 MS |
1061 | if (device->make_and_model) |
1062 | free(device->make_and_model); | |
7a14d768 | 1063 | |
749b1e90 MS |
1064 | device->make_and_model = strdup(make_model); |
1065 | } | |
1066 | break; | |
7a14d768 | 1067 | |
749b1e90 MS |
1068 | case DEVICE_LOCATION : |
1069 | if (device && packet.object_type == CUPS_ASN1_OCTET_STRING && | |
1070 | !device->location) | |
d1c13e16 | 1071 | device->location = strdup((char *)packet.object_value.string.bytes); |
749b1e90 | 1072 | break; |
7a14d768 | 1073 | |
749b1e90 MS |
1074 | case DEVICE_PRODUCT : |
1075 | if (device && packet.object_type == CUPS_ASN1_OCTET_STRING && | |
1076 | !device->id) | |
1077 | { | |
1078 | /* | |
1079 | * Update an existing cache entry... | |
1080 | */ | |
7a14d768 | 1081 | |
749b1e90 | 1082 | if (!device->info) |
d1c13e16 | 1083 | device->info = strdup((char *)packet.object_value.string.bytes); |
7a14d768 | 1084 | |
749b1e90 MS |
1085 | if (device->make_and_model) |
1086 | free(device->make_and_model); | |
7a14d768 | 1087 | |
d1c13e16 | 1088 | device->make_and_model = strdup((char *)packet.object_value.string.bytes); |
749b1e90 MS |
1089 | } |
1090 | break; | |
7a14d768 | 1091 | |
749b1e90 MS |
1092 | case DEVICE_URI : |
1093 | if (device && packet.object_type == CUPS_ASN1_OCTET_STRING && | |
12f89d24 | 1094 | !device->uri && packet.object_value.string.num_bytes > 3) |
749b1e90 MS |
1095 | { |
1096 | /* | |
1097 | * Update an existing cache entry... | |
1098 | */ | |
7a14d768 | 1099 | |
12f89d24 MS |
1100 | char scheme[32], /* URI scheme */ |
1101 | userpass[256], /* Username:password in URI */ | |
1102 | hostname[256], /* Hostname in URI */ | |
1103 | resource[1024]; /* Resource path in URI */ | |
1104 | int port; /* Port number in URI */ | |
1105 | ||
d1c13e16 | 1106 | if (!strncmp((char *)packet.object_value.string.bytes, "lpr:", 4)) |
749b1e90 MS |
1107 | { |
1108 | /* | |
1109 | * We want "lpd://..." for the URI... | |
1110 | */ | |
7a14d768 | 1111 | |
d1c13e16 | 1112 | packet.object_value.string.bytes[2] = 'd'; |
749b1e90 | 1113 | } |
7a14d768 | 1114 | |
12f89d24 MS |
1115 | if (httpSeparateURI(HTTP_URI_CODING_ALL, |
1116 | (char *)packet.object_value.string.bytes, | |
1117 | scheme, sizeof(scheme), | |
1118 | userpass, sizeof(userpass), | |
1119 | hostname, sizeof(hostname), &port, | |
1120 | resource, sizeof(resource)) >= HTTP_URI_OK) | |
1121 | device->uri = strdup((char *)packet.object_value.string.bytes); | |
749b1e90 MS |
1122 | } |
1123 | break; | |
89d46774 | 1124 | } |
1125 | } | |
1126 | ||
1127 | ||
1128 | /* | |
1129 | * 'run_time()' - Return the total running time... | |
1130 | */ | |
1131 | ||
1132 | static double /* O - Number of seconds */ | |
1133 | run_time(void) | |
1134 | { | |
1135 | struct timeval curtime; /* Current time */ | |
1136 | ||
1137 | ||
1138 | gettimeofday(&curtime, NULL); | |
1139 | ||
1140 | return (curtime.tv_sec - StartTime.tv_sec + | |
1141 | 0.000001 * (curtime.tv_usec - StartTime.tv_usec)); | |
1142 | } | |
1143 | ||
1144 | ||
1145 | /* | |
1146 | * 'scan_devices()' - Scan for devices using SNMP. | |
1147 | */ | |
1148 | ||
1149 | static void | |
22c9029b MS |
1150 | scan_devices(int ipv4, /* I - SNMP IPv4 socket */ |
1151 | int ipv6) /* I - SNMP IPv6 socket */ | |
89d46774 | 1152 | { |
22c9029b MS |
1153 | int fd, /* File descriptor for this address */ |
1154 | busy; /* Are we busy processing something? */ | |
89d46774 | 1155 | char *address, /* Current address */ |
1156 | *community; /* Current community */ | |
1157 | fd_set input; /* Input set for select() */ | |
1158 | struct timeval timeout; /* Timeout for select() */ | |
1159 | time_t endtime; /* End time for scan */ | |
1160 | http_addrlist_t *addrs, /* List of addresses */ | |
1161 | *addr; /* Current address */ | |
1162 | snmp_cache_t *device; /* Current device */ | |
22c9029b | 1163 | char temp[1024]; /* Temporary address string */ |
89d46774 | 1164 | |
1165 | ||
89d46774 | 1166 | gettimeofday(&StartTime, NULL); |
1167 | ||
89d46774 | 1168 | /* |
1169 | * First send all of the broadcast queries... | |
1170 | */ | |
1171 | ||
1172 | for (address = (char *)cupsArrayFirst(Addresses); | |
1173 | address; | |
1174 | address = (char *)cupsArrayNext(Addresses)) | |
1175 | { | |
1176 | if (!strcmp(address, "@LOCAL")) | |
1177 | addrs = get_interface_addresses(NULL); | |
1178 | else if (!strncmp(address, "@IF(", 4)) | |
1179 | { | |
1180 | char ifname[255]; /* Interface name */ | |
1181 | ||
89d46774 | 1182 | strlcpy(ifname, address + 4, sizeof(ifname)); |
1183 | if (ifname[0]) | |
1184 | ifname[strlen(ifname) - 1] = '\0'; | |
1185 | ||
1186 | addrs = get_interface_addresses(ifname); | |
1187 | } | |
1188 | else | |
22c9029b | 1189 | addrs = httpAddrGetList(address, AF_UNSPEC, NULL); |
89d46774 | 1190 | |
1191 | if (!addrs) | |
1192 | { | |
1193 | fprintf(stderr, "ERROR: Unable to scan \"%s\"!\n", address); | |
1194 | continue; | |
1195 | } | |
1196 | ||
1197 | for (community = (char *)cupsArrayFirst(Communities); | |
1198 | community; | |
1199 | community = (char *)cupsArrayNext(Communities)) | |
1200 | { | |
1201 | debug_printf("DEBUG: Scanning for devices in \"%s\" via \"%s\"...\n", | |
1202 | community, address); | |
1203 | ||
1204 | for (addr = addrs; addr; addr = addr->next) | |
22c9029b MS |
1205 | { |
1206 | #ifdef AF_INET6 | |
5ec1fd3d | 1207 | if (httpAddrFamily(&(addr->addr)) == AF_INET6) |
22c9029b MS |
1208 | fd = ipv6; |
1209 | else | |
1210 | #endif /* AF_INET6 */ | |
1211 | fd = ipv4; | |
1212 | ||
1213 | debug_printf("DEBUG: Sending get request to %s...\n", | |
1214 | httpAddrString(&(addr->addr), temp, sizeof(temp))); | |
1215 | ||
7a14d768 | 1216 | _cupsSNMPWrite(fd, &(addr->addr), CUPS_SNMP_VERSION_1, community, |
749b1e90 | 1217 | CUPS_ASN1_GET_REQUEST, DEVICE_TYPE, DeviceTypeOID); |
22c9029b | 1218 | } |
89d46774 | 1219 | } |
1220 | ||
1221 | httpAddrFreeList(addrs); | |
1222 | } | |
1223 | ||
1224 | /* | |
1225 | * Then read any responses that come in over the next 3 seconds... | |
1226 | */ | |
1227 | ||
ae71f5de | 1228 | endtime = time(NULL) + MaxRunTime; |
89d46774 | 1229 | |
1230 | FD_ZERO(&input); | |
1231 | ||
1232 | while (time(NULL) < endtime) | |
1233 | { | |
ae71f5de | 1234 | timeout.tv_sec = 2; |
89d46774 | 1235 | timeout.tv_usec = 0; |
1236 | ||
22c9029b MS |
1237 | FD_SET(ipv4, &input); |
1238 | if (ipv6 >= 0) | |
1239 | FD_SET(ipv6, &input); | |
1240 | ||
1241 | fd = ipv4 > ipv6 ? ipv4 : ipv6; | |
89d46774 | 1242 | if (select(fd + 1, &input, NULL, NULL, &timeout) < 0) |
1243 | { | |
22c9029b MS |
1244 | fprintf(stderr, "ERROR: %.3f select() for %d/%d failed: %s\n", run_time(), |
1245 | ipv4, ipv6, strerror(errno)); | |
89d46774 | 1246 | break; |
1247 | } | |
1248 | ||
22c9029b MS |
1249 | busy = 0; |
1250 | ||
1251 | if (FD_ISSET(ipv4, &input)) | |
1252 | { | |
1253 | read_snmp_response(ipv4); | |
1254 | busy = 1; | |
1255 | } | |
1256 | ||
1257 | if (ipv6 >= 0 && FD_ISSET(ipv6, &input)) | |
1258 | { | |
1259 | read_snmp_response(ipv6); | |
1260 | busy = 1; | |
1261 | } | |
1262 | ||
1263 | if (!busy) | |
749b1e90 MS |
1264 | { |
1265 | /* | |
1266 | * List devices with complete information... | |
1267 | */ | |
89d46774 | 1268 | |
749b1e90 | 1269 | int sent_something = 0; |
89d46774 | 1270 | |
749b1e90 MS |
1271 | for (device = (snmp_cache_t *)cupsArrayFirst(Devices); |
1272 | device; | |
1273 | device = (snmp_cache_t *)cupsArrayNext(Devices)) | |
1274 | if (!device->sent && device->info && device->make_and_model) | |
1275 | { | |
1276 | if (device->uri) | |
1277 | list_device(device); | |
1278 | else | |
1279 | probe_device(device); | |
1280 | ||
1281 | device->sent = sent_something = 1; | |
1282 | } | |
1283 | ||
1284 | if (!sent_something) | |
1285 | break; | |
1286 | } | |
1287 | } | |
89d46774 | 1288 | |
1289 | debug_printf("DEBUG: %.3f Scan complete!\n", run_time()); | |
1290 | } | |
1291 | ||
1292 | ||
89d46774 | 1293 | /* |
1294 | * 'try_connect()' - Try connecting on a port... | |
1295 | */ | |
1296 | ||
1297 | static int /* O - 0 on success or -1 on error */ | |
1298 | try_connect(http_addr_t *addr, /* I - Socket address */ | |
1299 | const char *addrname, /* I - Hostname or IP address */ | |
1300 | int port) /* I - Port number */ | |
1301 | { | |
1302 | int fd; /* Socket */ | |
1303 | int status; /* Connection status */ | |
1304 | ||
1305 | ||
1306 | debug_printf("DEBUG: %.3f Trying %s://%s:%d...\n", run_time(), | |
1307 | port == 515 ? "lpd" : "socket", addrname, port); | |
1308 | ||
5ec1fd3d | 1309 | if ((fd = socket(httpAddrFamily(addr), SOCK_STREAM, 0)) < 0) |
89d46774 | 1310 | { |
c0e1af83 | 1311 | fprintf(stderr, "ERROR: Unable to create socket: %s\n", |
1312 | strerror(errno)); | |
89d46774 | 1313 | return (-1); |
1314 | } | |
1315 | ||
22c9029b | 1316 | _httpAddrSetPort(addr, port); |
89d46774 | 1317 | |
89d46774 | 1318 | alarm(1); |
1319 | ||
7e86f2f6 | 1320 | status = connect(fd, (void *)addr, (socklen_t)httpAddrLength(addr)); |
89d46774 | 1321 | |
1322 | close(fd); | |
1323 | alarm(0); | |
1324 | ||
1325 | return (status); | |
1326 | } | |
1327 | ||
1328 | ||
1329 | /* | |
1330 | * 'update_cache()' - Update a cached device... | |
1331 | */ | |
1332 | ||
1333 | static void | |
1334 | update_cache(snmp_cache_t *device, /* I - Device */ | |
1335 | const char *uri, /* I - Device URI */ | |
1336 | const char *id, /* I - Device ID */ | |
1337 | const char *make_model) /* I - Device make and model */ | |
1338 | { | |
1339 | if (device->uri) | |
1340 | free(device->uri); | |
1341 | ||
1342 | device->uri = strdup(uri); | |
1343 | ||
1344 | if (id) | |
1345 | { | |
1346 | if (device->id) | |
1347 | free(device->id); | |
1348 | ||
1349 | device->id = strdup(id); | |
1350 | } | |
1351 | ||
1352 | if (make_model) | |
1353 | { | |
1354 | if (device->make_and_model) | |
1355 | free(device->make_and_model); | |
1356 | ||
1357 | device->make_and_model = strdup(make_model); | |
1358 | } | |
d09495fa | 1359 | |
1360 | list_device(device); | |
89d46774 | 1361 | } |