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Commit | Line | Data |
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89d46774 | 1 | /* |
7e86f2f6 | 2 | * SNMP discovery backend for CUPS. |
89d46774 | 3 | * |
53f8d64f MS |
4 | * Copyright © 2007-2014 by Apple Inc. |
5 | * Copyright © 2006-2007 by Easy Software Products, all rights reserved. | |
89d46774 | 6 | * |
53f8d64f MS |
7 | * Licensed under Apache License v2.0. See the file "LICENSE" for more |
8 | * information. | |
89d46774 | 9 | */ |
10 | ||
11 | /* | |
12 | * Include necessary headers. | |
13 | */ | |
14 | ||
ed486911 | 15 | #include "backend-private.h" |
89d46774 | 16 | #include <cups/array.h> |
17 | #include <cups/file.h> | |
91c84a35 | 18 | #include <cups/http-private.h> |
b94498cf | 19 | #include <regex.h> |
89d46774 | 20 | |
21 | ||
22 | /* | |
23 | * This backend implements SNMP printer discovery. It uses a broadcast- | |
b94498cf | 24 | * based approach to get SNMP response packets from potential printers, |
7a14d768 MS |
25 | * requesting OIDs from the Host and Port Monitor MIBs, does a URI |
26 | * lookup based on the device description string, and finally a probe of | |
27 | * port 9100 (AppSocket) and 515 (LPD). | |
89d46774 | 28 | * |
29 | * The current focus is on printers with internal network cards, although | |
7a14d768 | 30 | * the code also works with many external print servers as well. |
89d46774 | 31 | * |
32 | * The backend reads the snmp.conf file from the CUPS_SERVERROOT directory | |
33 | * which can contain comments, blank lines, or any number of the following | |
34 | * directives: | |
35 | * | |
36 | * Address ip-address | |
37 | * Address @LOCAL | |
38 | * Address @IF(name) | |
39 | * Community name | |
40 | * DebugLevel N | |
b94498cf | 41 | * DeviceURI "regex pattern" uri |
89d46774 | 42 | * HostNameLookups on |
43 | * HostNameLookups off | |
b94498cf | 44 | * MaxRunTime N |
89d46774 | 45 | * |
46 | * The default is to use: | |
47 | * | |
48 | * Address @LOCAL | |
49 | * Community public | |
50 | * DebugLevel 0 | |
51 | * HostNameLookups off | |
ae71f5de | 52 | * MaxRunTime 120 |
89d46774 | 53 | * |
54 | * This backend is known to work with the following network printers and | |
55 | * print servers: | |
56 | * | |
57 | * Axis OfficeBasic, 5400, 5600 | |
7a14d768 | 58 | * Brother |
89d46774 | 59 | * EPSON |
60 | * Genicom | |
61 | * HP JetDirect | |
62 | * Lexmark | |
63 | * Sharp | |
64 | * Tektronix | |
65 | * Xerox | |
66 | * | |
67 | * It does not currently work with: | |
68 | * | |
69 | * DLink | |
70 | * Linksys | |
71 | * Netgear | |
72 | * Okidata | |
73 | * | |
74 | * (for all of these, they do not support the Host MIB) | |
75 | */ | |
76 | ||
89d46774 | 77 | /* |
78 | * Types... | |
79 | */ | |
80 | ||
749b1e90 MS |
81 | enum /**** Request IDs for each field ****/ |
82 | { | |
83 | DEVICE_TYPE = 1, | |
84 | DEVICE_DESCRIPTION, | |
85 | DEVICE_LOCATION, | |
86 | DEVICE_ID, | |
87 | DEVICE_URI, | |
88 | DEVICE_PRODUCT | |
89 | }; | |
90 | ||
b94498cf | 91 | typedef struct device_uri_s /**** DeviceURI values ****/ |
92 | { | |
93 | regex_t re; /* Regular expression to match */ | |
94 | cups_array_t *uris; /* URIs */ | |
95 | } device_uri_t; | |
96 | ||
89d46774 | 97 | typedef struct snmp_cache_s /**** SNMP scan cache ****/ |
98 | { | |
99 | http_addr_t address; /* Address of device */ | |
100 | char *addrname, /* Name of device */ | |
101 | *uri, /* device-uri */ | |
102 | *id, /* device-id */ | |
7a14d768 | 103 | *info, /* device-info */ |
749b1e90 | 104 | *location, /* device-location */ |
89d46774 | 105 | *make_and_model; /* device-make-and-model */ |
749b1e90 | 106 | int sent; /* Has this device been listed? */ |
89d46774 | 107 | } snmp_cache_t; |
108 | ||
89d46774 | 109 | |
110 | /* | |
111 | * Local functions... | |
112 | */ | |
113 | ||
114 | static char *add_array(cups_array_t *a, const char *s); | |
115 | static void add_cache(http_addr_t *addr, const char *addrname, | |
116 | const char *uri, const char *id, | |
117 | const char *make_and_model); | |
b94498cf | 118 | static device_uri_t *add_device_uri(char *value); |
89d46774 | 119 | static void alarm_handler(int sig); |
89d46774 | 120 | static int compare_cache(snmp_cache_t *a, snmp_cache_t *b); |
121 | static void debug_printf(const char *format, ...); | |
122 | static void fix_make_model(char *make_model, | |
123 | const char *old_make_model, | |
124 | int make_model_size); | |
125 | static void free_array(cups_array_t *a); | |
126 | static void free_cache(void); | |
127 | static http_addrlist_t *get_interface_addresses(const char *ifname); | |
d09495fa | 128 | static void list_device(snmp_cache_t *cache); |
89d46774 | 129 | static const char *password_cb(const char *prompt); |
130 | static void probe_device(snmp_cache_t *device); | |
131 | static void read_snmp_conf(const char *address); | |
132 | static void read_snmp_response(int fd); | |
133 | static double run_time(void); | |
22c9029b | 134 | static void scan_devices(int ipv4, int ipv6); |
89d46774 | 135 | static int try_connect(http_addr_t *addr, const char *addrname, |
136 | int port); | |
137 | static void update_cache(snmp_cache_t *device, const char *uri, | |
138 | const char *id, const char *make_model); | |
139 | ||
140 | ||
141 | /* | |
142 | * Local globals... | |
143 | */ | |
144 | ||
145 | static cups_array_t *Addresses = NULL; | |
146 | static cups_array_t *Communities = NULL; | |
147 | static cups_array_t *Devices = NULL; | |
148 | static int DebugLevel = 0; | |
749b1e90 MS |
149 | static const int DescriptionOID[] = { CUPS_OID_hrDeviceDescr, 1, -1 }; |
150 | static const int LocationOID[] = { CUPS_OID_sysLocation, 0, -1 }; | |
7a14d768 | 151 | static const int DeviceTypeOID[] = { CUPS_OID_hrDeviceType, 1, -1 }; |
7a14d768 | 152 | static const int DeviceIdOID[] = { CUPS_OID_ppmPrinterIEEE1284DeviceId, 1, -1 }; |
749b1e90 MS |
153 | static const int UriOID[] = { CUPS_OID_ppmPortServiceNameOrURI, 1, 1, -1 }; |
154 | static const int LexmarkProductOID[] = { 1,3,6,1,4,1,641,2,1,2,1,2,1,-1 }; | |
155 | static const int LexmarkProductOID2[] = { 1,3,6,1,4,1,674,10898,100,2,1,2,1,2,1,-1 }; | |
156 | static const int LexmarkDeviceIdOID[] = { 1,3,6,1,4,1,641,2,1,2,1,3,1,-1 }; | |
157 | static const int XeroxProductOID[] = { 1,3,6,1,4,1,128,2,1,3,1,2,0,-1 }; | |
b94498cf | 158 | static cups_array_t *DeviceURIs = NULL; |
89d46774 | 159 | static int HostNameLookups = 0; |
ae71f5de | 160 | static int MaxRunTime = 120; |
89d46774 | 161 | static struct timeval StartTime; |
162 | ||
163 | ||
164 | /* | |
165 | * 'main()' - Discover printers via SNMP. | |
166 | */ | |
167 | ||
168 | int /* O - Exit status */ | |
169 | main(int argc, /* I - Number of command-line arguments (6 or 7) */ | |
170 | char *argv[]) /* I - Command-line arguments */ | |
171 | { | |
22c9029b MS |
172 | int ipv4, /* SNMP IPv4 socket */ |
173 | ipv6; /* SNMP IPv6 socket */ | |
d09495fa | 174 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) |
175 | struct sigaction action; /* Actions for POSIX signals */ | |
176 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
89d46774 | 177 | |
178 | ||
179 | /* | |
180 | * Check command-line options... | |
181 | */ | |
182 | ||
183 | if (argc > 2) | |
184 | { | |
0837b7e8 | 185 | _cupsLangPuts(stderr, _("Usage: snmp [host-or-ip-address]")); |
89d46774 | 186 | return (1); |
187 | } | |
188 | ||
189 | /* | |
190 | * Set the password callback for IPP operations... | |
191 | */ | |
192 | ||
193 | cupsSetPasswordCB(password_cb); | |
194 | ||
d09495fa | 195 | /* |
196 | * Catch SIGALRM signals... | |
197 | */ | |
198 | ||
199 | #ifdef HAVE_SIGSET | |
200 | sigset(SIGALRM, alarm_handler); | |
201 | #elif defined(HAVE_SIGACTION) | |
202 | memset(&action, 0, sizeof(action)); | |
203 | ||
204 | sigemptyset(&action.sa_mask); | |
205 | sigaddset(&action.sa_mask, SIGALRM); | |
206 | action.sa_handler = alarm_handler; | |
207 | sigaction(SIGALRM, &action, NULL); | |
208 | #else | |
209 | signal(SIGALRM, alarm_handler); | |
210 | #endif /* HAVE_SIGSET */ | |
211 | ||
89d46774 | 212 | /* |
213 | * Open the SNMP socket... | |
214 | */ | |
215 | ||
22c9029b | 216 | if ((ipv4 = _cupsSNMPOpen(AF_INET)) < 0) |
89d46774 | 217 | return (1); |
218 | ||
22c9029b MS |
219 | #ifdef AF_INET6 |
220 | if ((ipv6 = _cupsSNMPOpen(AF_INET6)) < 0) | |
37e7e6e0 | 221 | perror("DEBUG: Unable to create IPv6 socket"); |
22c9029b MS |
222 | #else |
223 | ipv6 = -1; | |
224 | #endif /* AF_INET6 */ | |
225 | ||
89d46774 | 226 | /* |
227 | * Read the configuration file and any cache data... | |
228 | */ | |
229 | ||
230 | read_snmp_conf(argv[1]); | |
231 | ||
7a14d768 | 232 | _cupsSNMPSetDebug(DebugLevel); |
91c84a35 | 233 | |
89d46774 | 234 | Devices = cupsArrayNew((cups_array_func_t)compare_cache, NULL); |
235 | ||
236 | /* | |
237 | * Scan for devices... | |
238 | */ | |
239 | ||
22c9029b | 240 | scan_devices(ipv4, ipv6); |
89d46774 | 241 | |
89d46774 | 242 | /* |
243 | * Close, free, and return with no errors... | |
244 | */ | |
245 | ||
22c9029b MS |
246 | _cupsSNMPClose(ipv4); |
247 | if (ipv6 >= 0) | |
248 | _cupsSNMPClose(ipv6); | |
89d46774 | 249 | |
250 | free_array(Addresses); | |
251 | free_array(Communities); | |
252 | free_cache(); | |
253 | ||
254 | return (0); | |
255 | } | |
256 | ||
257 | ||
258 | /* | |
259 | * 'add_array()' - Add a string to an array. | |
260 | */ | |
261 | ||
262 | static char * /* O - New string */ | |
263 | add_array(cups_array_t *a, /* I - Array */ | |
264 | const char *s) /* I - String to add */ | |
265 | { | |
266 | char *dups; /* New string */ | |
267 | ||
268 | ||
269 | dups = strdup(s); | |
270 | ||
271 | cupsArrayAdd(a, dups); | |
272 | ||
273 | return (dups); | |
274 | } | |
275 | ||
276 | ||
277 | /* | |
278 | * 'add_cache()' - Add a cached device... | |
279 | */ | |
280 | ||
281 | static void | |
282 | add_cache(http_addr_t *addr, /* I - Device IP address */ | |
283 | const char *addrname, /* I - IP address or name string */ | |
284 | const char *uri, /* I - Device URI */ | |
285 | const char *id, /* I - 1284 device ID */ | |
286 | const char *make_and_model) /* I - Make and model */ | |
287 | { | |
288 | snmp_cache_t *temp; /* New device entry */ | |
289 | ||
290 | ||
291 | debug_printf("DEBUG: add_cache(addr=%p, addrname=\"%s\", uri=\"%s\", " | |
292 | "id=\"%s\", make_and_model=\"%s\")\n", | |
d09495fa | 293 | addr, addrname, uri ? uri : "(null)", id ? id : "(null)", |
89d46774 | 294 | make_and_model ? make_and_model : "(null)"); |
295 | ||
296 | temp = calloc(1, sizeof(snmp_cache_t)); | |
297 | memcpy(&(temp->address), addr, sizeof(temp->address)); | |
298 | ||
299 | temp->addrname = strdup(addrname); | |
300 | ||
301 | if (uri) | |
302 | temp->uri = strdup(uri); | |
303 | ||
304 | if (id) | |
305 | temp->id = strdup(id); | |
306 | ||
307 | if (make_and_model) | |
308 | temp->make_and_model = strdup(make_and_model); | |
309 | ||
310 | cupsArrayAdd(Devices, temp); | |
d09495fa | 311 | |
312 | if (uri) | |
313 | list_device(temp); | |
89d46774 | 314 | } |
315 | ||
316 | ||
b94498cf | 317 | /* |
318 | * 'add_device_uri()' - Add a device URI to the cache. | |
319 | * | |
320 | * The value string is modified (chopped up) as needed. | |
321 | */ | |
322 | ||
323 | static device_uri_t * /* O - Device URI */ | |
324 | add_device_uri(char *value) /* I - Value from snmp.conf */ | |
325 | { | |
326 | device_uri_t *device_uri; /* Device URI */ | |
327 | char *start; /* Start of value */ | |
328 | ||
329 | ||
330 | /* | |
331 | * Allocate memory as needed... | |
332 | */ | |
333 | ||
334 | if (!DeviceURIs) | |
335 | DeviceURIs = cupsArrayNew(NULL, NULL); | |
336 | ||
337 | if (!DeviceURIs) | |
338 | return (NULL); | |
339 | ||
340 | if ((device_uri = calloc(1, sizeof(device_uri_t))) == NULL) | |
341 | return (NULL); | |
342 | ||
343 | if ((device_uri->uris = cupsArrayNew(NULL, NULL)) == NULL) | |
344 | { | |
345 | free(device_uri); | |
346 | return (NULL); | |
347 | } | |
348 | ||
349 | /* | |
350 | * Scan the value string for the regular expression and URI(s)... | |
351 | */ | |
352 | ||
353 | value ++; /* Skip leading " */ | |
354 | ||
355 | for (start = value; *value && *value != '\"'; value ++) | |
356 | if (*value == '\\' && value[1]) | |
357 | _cups_strcpy(value, value + 1); | |
358 | ||
359 | if (!*value) | |
360 | { | |
361 | fputs("ERROR: Missing end quote for DeviceURI!\n", stderr); | |
362 | ||
363 | cupsArrayDelete(device_uri->uris); | |
364 | free(device_uri); | |
365 | ||
366 | return (NULL); | |
367 | } | |
368 | ||
369 | *value++ = '\0'; | |
370 | ||
371 | if (regcomp(&(device_uri->re), start, REG_EXTENDED | REG_ICASE)) | |
372 | { | |
373 | fputs("ERROR: Bad regular expression for DeviceURI!\n", stderr); | |
374 | ||
375 | cupsArrayDelete(device_uri->uris); | |
376 | free(device_uri); | |
377 | ||
378 | return (NULL); | |
379 | } | |
380 | ||
381 | while (*value) | |
382 | { | |
383 | while (isspace(*value & 255)) | |
384 | value ++; | |
385 | ||
386 | if (!*value) | |
387 | break; | |
388 | ||
389 | for (start = value; *value && !isspace(*value & 255); value ++); | |
390 | ||
391 | if (*value) | |
392 | *value++ = '\0'; | |
393 | ||
394 | cupsArrayAdd(device_uri->uris, strdup(start)); | |
395 | } | |
396 | ||
397 | /* | |
398 | * Add the device URI to the list and return it... | |
399 | */ | |
400 | ||
401 | cupsArrayAdd(DeviceURIs, device_uri); | |
402 | ||
403 | return (device_uri); | |
404 | } | |
405 | ||
406 | ||
89d46774 | 407 | /* |
408 | * 'alarm_handler()' - Handle alarm signals... | |
409 | */ | |
410 | ||
411 | static void | |
412 | alarm_handler(int sig) /* I - Signal number */ | |
413 | { | |
414 | /* | |
415 | * Do nothing... | |
416 | */ | |
417 | ||
418 | (void)sig; | |
419 | ||
d09495fa | 420 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) |
421 | signal(SIGALRM, alarm_handler); | |
422 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
423 | ||
89d46774 | 424 | if (DebugLevel) |
425 | write(2, "DEBUG: ALARM!\n", 14); | |
426 | } | |
427 | ||
428 | ||
89d46774 | 429 | /* |
430 | * 'compare_cache()' - Compare two cache entries. | |
431 | */ | |
432 | ||
433 | static int /* O - Result of comparison */ | |
434 | compare_cache(snmp_cache_t *a, /* I - First cache entry */ | |
435 | snmp_cache_t *b) /* I - Second cache entry */ | |
436 | { | |
88f9aafc | 437 | return (_cups_strcasecmp(a->addrname, b->addrname)); |
89d46774 | 438 | } |
439 | ||
440 | ||
441 | /* | |
442 | * 'debug_printf()' - Display some debugging information. | |
443 | */ | |
444 | ||
445 | static void | |
446 | debug_printf(const char *format, /* I - Printf-style format string */ | |
447 | ...) /* I - Additional arguments as needed */ | |
448 | { | |
449 | va_list ap; /* Pointer to arguments */ | |
450 | ||
451 | ||
452 | if (!DebugLevel) | |
453 | return; | |
454 | ||
455 | va_start(ap, format); | |
456 | vfprintf(stderr, format, ap); | |
457 | va_end(ap); | |
458 | } | |
459 | ||
460 | ||
461 | /* | |
462 | * 'fix_make_model()' - Fix common problems in the make-and-model string. | |
463 | */ | |
464 | ||
465 | static void | |
466 | fix_make_model( | |
467 | char *make_model, /* I - New make-and-model string */ | |
468 | const char *old_make_model, /* I - Old make-and-model string */ | |
469 | int make_model_size) /* I - Size of new string buffer */ | |
470 | { | |
a74454a7 | 471 | char *mmptr; /* Pointer into make-and-model string */ |
89d46774 | 472 | |
473 | ||
474 | /* | |
475 | * Fix some common problems with the make-and-model string so | |
476 | * that printer driver detection works better... | |
477 | */ | |
478 | ||
88f9aafc | 479 | if (!_cups_strncasecmp(old_make_model, "Hewlett-Packard", 15)) |
89d46774 | 480 | { |
481 | /* | |
482 | * Strip leading Hewlett-Packard and hp prefixes and replace | |
483 | * with a single HP manufacturer prefix... | |
484 | */ | |
485 | ||
a74454a7 | 486 | mmptr = (char *)old_make_model + 15; |
89d46774 | 487 | |
488 | while (isspace(*mmptr & 255)) | |
489 | mmptr ++; | |
490 | ||
88f9aafc | 491 | if (!_cups_strncasecmp(mmptr, "hp", 2)) |
89d46774 | 492 | { |
493 | mmptr += 2; | |
494 | ||
495 | while (isspace(*mmptr & 255)) | |
496 | mmptr ++; | |
497 | } | |
498 | ||
499 | make_model[0] = 'H'; | |
500 | make_model[1] = 'P'; | |
501 | make_model[2] = ' '; | |
07623986 | 502 | strlcpy(make_model + 3, mmptr, (size_t)make_model_size - 3); |
89d46774 | 503 | } |
88f9aafc | 504 | else if (!_cups_strncasecmp(old_make_model, "deskjet", 7)) |
07623986 | 505 | snprintf(make_model, (size_t)make_model_size, "HP DeskJet%s", old_make_model + 7); |
88f9aafc | 506 | else if (!_cups_strncasecmp(old_make_model, "officejet", 9)) |
07623986 | 507 | snprintf(make_model, (size_t)make_model_size, "HP OfficeJet%s", old_make_model + 9); |
88f9aafc | 508 | else if (!_cups_strncasecmp(old_make_model, "stylus_pro_", 11)) |
07623986 | 509 | snprintf(make_model, (size_t)make_model_size, "EPSON Stylus Pro %s", old_make_model + 11); |
89d46774 | 510 | else |
07623986 | 511 | strlcpy(make_model, old_make_model, (size_t)make_model_size); |
89d46774 | 512 | |
513 | if ((mmptr = strstr(make_model, ", Inc.,")) != NULL) | |
514 | { | |
515 | /* | |
516 | * Strip inc. from name, e.g. "Tektronix, Inc., Phaser 560" | |
517 | * becomes "Tektronix Phaser 560"... | |
518 | */ | |
519 | ||
a74454a7 | 520 | _cups_strcpy(mmptr, mmptr + 7); |
521 | } | |
522 | ||
d09495fa | 523 | if ((mmptr = strstr(make_model, " Network")) != NULL) |
524 | { | |
525 | /* | |
526 | * Drop unnecessary informational text, e.g. "Xerox DocuPrint N2025 | |
527 | * Network LaserJet - 2.12" becomes "Xerox DocuPrint N2025"... | |
528 | */ | |
529 | ||
530 | *mmptr = '\0'; | |
531 | } | |
532 | ||
a74454a7 | 533 | if ((mmptr = strchr(make_model, ',')) != NULL) |
534 | { | |
535 | /* | |
536 | * Drop anything after a trailing comma... | |
537 | */ | |
538 | ||
539 | *mmptr = '\0'; | |
89d46774 | 540 | } |
541 | } | |
542 | ||
543 | ||
544 | /* | |
545 | * 'free_array()' - Free an array of strings. | |
546 | */ | |
547 | ||
548 | static void | |
549 | free_array(cups_array_t *a) /* I - Array */ | |
550 | { | |
551 | char *s; /* Current string */ | |
552 | ||
553 | ||
554 | for (s = (char *)cupsArrayFirst(a); s; s = (char *)cupsArrayNext(a)) | |
555 | free(s); | |
556 | ||
557 | cupsArrayDelete(a); | |
558 | } | |
559 | ||
560 | ||
561 | /* | |
562 | * 'free_cache()' - Free the array of cached devices. | |
563 | */ | |
564 | ||
565 | static void | |
566 | free_cache(void) | |
567 | { | |
568 | snmp_cache_t *cache; /* Cached device */ | |
569 | ||
570 | ||
571 | for (cache = (snmp_cache_t *)cupsArrayFirst(Devices); | |
572 | cache; | |
573 | cache = (snmp_cache_t *)cupsArrayNext(Devices)) | |
574 | { | |
575 | free(cache->addrname); | |
576 | ||
577 | if (cache->uri) | |
578 | free(cache->uri); | |
579 | ||
580 | if (cache->id) | |
581 | free(cache->id); | |
582 | ||
583 | if (cache->make_and_model) | |
584 | free(cache->make_and_model); | |
585 | ||
586 | free(cache); | |
587 | } | |
588 | ||
589 | cupsArrayDelete(Devices); | |
590 | Devices = NULL; | |
591 | } | |
592 | ||
593 | ||
594 | /* | |
595 | * 'get_interface_addresses()' - Get the broadcast address(es) associated | |
596 | * with an interface. | |
597 | */ | |
598 | ||
599 | static http_addrlist_t * /* O - List of addresses */ | |
600 | get_interface_addresses( | |
601 | const char *ifname) /* I - Interface name */ | |
602 | { | |
603 | struct ifaddrs *addrs, /* Interface address list */ | |
604 | *addr; /* Current interface address */ | |
605 | http_addrlist_t *first, /* First address in list */ | |
606 | *last, /* Last address in list */ | |
607 | *current; /* Current address */ | |
608 | ||
609 | ||
610 | if (getifaddrs(&addrs) < 0) | |
611 | return (NULL); | |
612 | ||
613 | for (addr = addrs, first = NULL, last = NULL; addr; addr = addr->ifa_next) | |
614 | if ((addr->ifa_flags & IFF_BROADCAST) && addr->ifa_broadaddr && | |
615 | addr->ifa_broadaddr->sa_family == AF_INET && | |
616 | (!ifname || !strcmp(ifname, addr->ifa_name))) | |
617 | { | |
618 | current = calloc(1, sizeof(http_addrlist_t)); | |
619 | ||
620 | memcpy(&(current->addr), addr->ifa_broadaddr, | |
621 | sizeof(struct sockaddr_in)); | |
622 | ||
623 | if (!last) | |
624 | first = current; | |
625 | else | |
626 | last->next = current; | |
627 | ||
628 | last = current; | |
629 | } | |
630 | ||
631 | freeifaddrs(addrs); | |
632 | ||
633 | return (first); | |
634 | } | |
635 | ||
636 | ||
89d46774 | 637 | /* |
d09495fa | 638 | * 'list_device()' - List a device we found... |
89d46774 | 639 | */ |
640 | ||
641 | static void | |
d09495fa | 642 | list_device(snmp_cache_t *cache) /* I - Cached device */ |
89d46774 | 643 | { |
d09495fa | 644 | if (cache->uri) |
749b1e90 MS |
645 | cupsBackendReport("network", cache->uri, cache->make_and_model, |
646 | cache->info, cache->id, cache->location); | |
89d46774 | 647 | } |
648 | ||
649 | ||
89d46774 | 650 | /* |
651 | * 'password_cb()' - Handle authentication requests. | |
652 | * | |
653 | * All we do right now is return NULL, indicating that no authentication | |
654 | * is possible. | |
655 | */ | |
656 | ||
657 | static const char * /* O - Password (NULL) */ | |
658 | password_cb(const char *prompt) /* I - Prompt message */ | |
659 | { | |
660 | (void)prompt; /* Anti-compiler-warning-code */ | |
661 | ||
662 | return (NULL); | |
663 | } | |
664 | ||
665 | ||
666 | /* | |
667 | * 'probe_device()' - Probe a device to discover whether it is a printer. | |
668 | * | |
669 | * TODO: Try using the Port Monitor MIB to discover the correct protocol | |
670 | * to use - first need a commercially-available printer that supports | |
671 | * it, though... | |
672 | */ | |
673 | ||
674 | static void | |
675 | probe_device(snmp_cache_t *device) /* I - Device */ | |
676 | { | |
b94498cf | 677 | char uri[1024], /* Full device URI */ |
678 | *uriptr, /* Pointer into URI */ | |
679 | *format; /* Format string for device */ | |
680 | device_uri_t *device_uri; /* Current DeviceURI match */ | |
89d46774 | 681 | |
682 | ||
89d46774 | 683 | debug_printf("DEBUG: %.3f Probing %s...\n", run_time(), device->addrname); |
684 | ||
b94498cf | 685 | #ifdef __APPLE__ |
686 | /* | |
22c9029b | 687 | * If the printer supports Bonjour/mDNS, don't report it from the SNMP backend. |
b94498cf | 688 | */ |
d09495fa | 689 | |
b94498cf | 690 | if (!try_connect(&(device->address), device->addrname, 5353)) |
d09495fa | 691 | { |
b94498cf | 692 | debug_printf("DEBUG: %s supports mDNS, not reporting!\n", device->addrname); |
693 | return; | |
d09495fa | 694 | } |
b94498cf | 695 | #endif /* __APPLE__ */ |
d09495fa | 696 | |
b94498cf | 697 | /* |
698 | * Lookup the device in the match table... | |
699 | */ | |
89d46774 | 700 | |
b94498cf | 701 | for (device_uri = (device_uri_t *)cupsArrayFirst(DeviceURIs); |
702 | device_uri; | |
703 | device_uri = (device_uri_t *)cupsArrayNext(DeviceURIs)) | |
ac884b6a MS |
704 | if (device->make_and_model && |
705 | !regexec(&(device_uri->re), device->make_and_model, 0, NULL, 0)) | |
89d46774 | 706 | { |
d09495fa | 707 | /* |
b94498cf | 708 | * Found a match, add the URIs... |
89d46774 | 709 | */ |
710 | ||
b94498cf | 711 | for (format = (char *)cupsArrayFirst(device_uri->uris); |
712 | format; | |
713 | format = (char *)cupsArrayNext(device_uri->uris)) | |
89d46774 | 714 | { |
b94498cf | 715 | for (uriptr = uri; *format && uriptr < (uri + sizeof(uri) - 1);) |
716 | if (*format == '%' && format[1] == 's') | |
89d46774 | 717 | { |
b94498cf | 718 | /* |
719 | * Insert hostname/address... | |
720 | */ | |
89d46774 | 721 | |
7e86f2f6 | 722 | strlcpy(uriptr, device->addrname, sizeof(uri) - (size_t)(uriptr - uri)); |
b94498cf | 723 | uriptr += strlen(uriptr); |
724 | format += 2; | |
725 | } | |
726 | else | |
727 | *uriptr++ = *format++; | |
89d46774 | 728 | |
b94498cf | 729 | *uriptr = '\0'; |
89d46774 | 730 | |
b94498cf | 731 | update_cache(device, uri, NULL, NULL); |
89d46774 | 732 | } |
733 | ||
89d46774 | 734 | return; |
b94498cf | 735 | } |
89d46774 | 736 | |
737 | /* | |
b94498cf | 738 | * Then try the standard ports... |
89d46774 | 739 | */ |
740 | ||
741 | if (!try_connect(&(device->address), device->addrname, 9100)) | |
742 | { | |
743 | debug_printf("DEBUG: %s supports AppSocket!\n", device->addrname); | |
744 | ||
745 | snprintf(uri, sizeof(uri), "socket://%s", device->addrname); | |
746 | update_cache(device, uri, NULL, NULL); | |
747 | } | |
748 | else if (!try_connect(&(device->address), device->addrname, 515)) | |
749 | { | |
750 | debug_printf("DEBUG: %s supports LPD!\n", device->addrname); | |
751 | ||
752 | snprintf(uri, sizeof(uri), "lpd://%s/", device->addrname); | |
753 | update_cache(device, uri, NULL, NULL); | |
754 | } | |
755 | } | |
756 | ||
757 | ||
758 | /* | |
759 | * 'read_snmp_conf()' - Read the snmp.conf file. | |
760 | */ | |
761 | ||
762 | static void | |
763 | read_snmp_conf(const char *address) /* I - Single address to probe */ | |
764 | { | |
765 | cups_file_t *fp; /* File pointer */ | |
766 | char filename[1024], /* Filename */ | |
767 | line[1024], /* Line from file */ | |
768 | *value; /* Value on line */ | |
769 | int linenum; /* Line number */ | |
770 | const char *cups_serverroot; /* CUPS_SERVERROOT env var */ | |
771 | const char *debug; /* CUPS_DEBUG_LEVEL env var */ | |
d09495fa | 772 | const char *runtime; /* CUPS_MAX_RUN_TIME env var */ |
89d46774 | 773 | |
774 | ||
775 | /* | |
776 | * Initialize the global address and community lists... | |
777 | */ | |
778 | ||
779 | Addresses = cupsArrayNew(NULL, NULL); | |
780 | Communities = cupsArrayNew(NULL, NULL); | |
781 | ||
782 | if (address) | |
783 | add_array(Addresses, address); | |
784 | ||
785 | if ((debug = getenv("CUPS_DEBUG_LEVEL")) != NULL) | |
786 | DebugLevel = atoi(debug); | |
787 | ||
d09495fa | 788 | if ((runtime = getenv("CUPS_MAX_RUN_TIME")) != NULL) |
789 | MaxRunTime = atoi(runtime); | |
790 | ||
89d46774 | 791 | /* |
792 | * Find the snmp.conf file... | |
793 | */ | |
794 | ||
795 | if ((cups_serverroot = getenv("CUPS_SERVERROOT")) == NULL) | |
796 | cups_serverroot = CUPS_SERVERROOT; | |
797 | ||
798 | snprintf(filename, sizeof(filename), "%s/snmp.conf", cups_serverroot); | |
799 | ||
800 | if ((fp = cupsFileOpen(filename, "r")) != NULL) | |
801 | { | |
802 | /* | |
803 | * Read the snmp.conf file... | |
804 | */ | |
805 | ||
806 | linenum = 0; | |
807 | ||
808 | while (cupsFileGetConf(fp, line, sizeof(line), &value, &linenum)) | |
809 | { | |
810 | if (!value) | |
811 | fprintf(stderr, "ERROR: Missing value on line %d of %s!\n", linenum, | |
812 | filename); | |
88f9aafc | 813 | else if (!_cups_strcasecmp(line, "Address")) |
89d46774 | 814 | { |
815 | if (!address) | |
816 | add_array(Addresses, value); | |
817 | } | |
88f9aafc | 818 | else if (!_cups_strcasecmp(line, "Community")) |
89d46774 | 819 | add_array(Communities, value); |
88f9aafc | 820 | else if (!_cups_strcasecmp(line, "DebugLevel")) |
89d46774 | 821 | DebugLevel = atoi(value); |
88f9aafc | 822 | else if (!_cups_strcasecmp(line, "DeviceURI")) |
b94498cf | 823 | { |
824 | if (*value != '\"') | |
825 | fprintf(stderr, | |
826 | "ERROR: Missing double quote for regular expression on " | |
827 | "line %d of %s!\n", linenum, filename); | |
828 | else | |
829 | add_device_uri(value); | |
830 | } | |
88f9aafc MS |
831 | else if (!_cups_strcasecmp(line, "HostNameLookups")) |
832 | HostNameLookups = !_cups_strcasecmp(value, "on") || | |
833 | !_cups_strcasecmp(value, "yes") || | |
834 | !_cups_strcasecmp(value, "true") || | |
835 | !_cups_strcasecmp(value, "double"); | |
836 | else if (!_cups_strcasecmp(line, "MaxRunTime")) | |
d09495fa | 837 | MaxRunTime = atoi(value); |
89d46774 | 838 | else |
839 | fprintf(stderr, "ERROR: Unknown directive %s on line %d of %s!\n", | |
840 | line, linenum, filename); | |
841 | } | |
842 | ||
843 | cupsFileClose(fp); | |
844 | } | |
845 | ||
846 | /* | |
847 | * Use defaults if parameters are undefined... | |
848 | */ | |
849 | ||
850 | if (cupsArrayCount(Addresses) == 0) | |
851 | { | |
bc44d920 | 852 | /* |
853 | * If we have no addresses, exit immediately... | |
854 | */ | |
855 | ||
856 | fprintf(stderr, | |
857 | "DEBUG: No address specified and no Address line in %s...\n", | |
858 | filename); | |
859 | exit(0); | |
89d46774 | 860 | } |
861 | ||
862 | if (cupsArrayCount(Communities) == 0) | |
863 | { | |
864 | fputs("INFO: Using default SNMP Community public\n", stderr); | |
865 | add_array(Communities, "public"); | |
866 | } | |
867 | } | |
868 | ||
869 | ||
870 | /* | |
871 | * 'read_snmp_response()' - Read and parse a SNMP response... | |
872 | */ | |
873 | ||
874 | static void | |
875 | read_snmp_response(int fd) /* I - SNMP socket file descriptor */ | |
876 | { | |
89d46774 | 877 | char addrname[256]; /* Source address name */ |
91c84a35 | 878 | cups_snmp_t packet; /* Decoded packet */ |
89d46774 | 879 | snmp_cache_t key, /* Search key */ |
880 | *device; /* Matching device */ | |
881 | ||
882 | ||
883 | /* | |
884 | * Read the response data... | |
885 | */ | |
886 | ||
7a14d768 | 887 | if (!_cupsSNMPRead(fd, &packet, -1.0)) |
89d46774 | 888 | { |
889 | fprintf(stderr, "ERROR: Unable to read data from socket: %s\n", | |
890 | strerror(errno)); | |
891 | return; | |
892 | } | |
893 | ||
894 | if (HostNameLookups) | |
91c84a35 | 895 | httpAddrLookup(&(packet.address), addrname, sizeof(addrname)); |
89d46774 | 896 | else |
91c84a35 | 897 | httpAddrString(&(packet.address), addrname, sizeof(addrname)); |
89d46774 | 898 | |
91c84a35 | 899 | debug_printf("DEBUG: %.3f Received data from %s...\n", run_time(), addrname); |
89d46774 | 900 | |
901 | /* | |
902 | * Look for the response status code in the SNMP message header... | |
903 | */ | |
904 | ||
91c84a35 | 905 | if (packet.error) |
89d46774 | 906 | { |
91c84a35 MS |
907 | fprintf(stderr, "ERROR: Bad SNMP packet from %s: %s\n", addrname, |
908 | packet.error); | |
89d46774 | 909 | |
910 | return; | |
911 | } | |
912 | ||
913 | debug_printf("DEBUG: community=\"%s\"\n", packet.community); | |
914 | debug_printf("DEBUG: request-id=%d\n", packet.request_id); | |
915 | debug_printf("DEBUG: error-status=%d\n", packet.error_status); | |
916 | ||
771bd8cb | 917 | if (packet.error_status && packet.request_id != DEVICE_TYPE) |
89d46774 | 918 | return; |
919 | ||
920 | /* | |
921 | * Find a matching device in the cache... | |
922 | */ | |
923 | ||
8ca02f3c | 924 | key.addrname = addrname; |
925 | device = (snmp_cache_t *)cupsArrayFind(Devices, &key); | |
89d46774 | 926 | |
927 | /* | |
928 | * Process the message... | |
929 | */ | |
930 | ||
749b1e90 | 931 | switch (packet.request_id) |
89d46774 | 932 | { |
749b1e90 MS |
933 | case DEVICE_TYPE : |
934 | /* | |
935 | * Got the device type response... | |
936 | */ | |
937 | ||
938 | if (device) | |
939 | { | |
940 | debug_printf("DEBUG: Discarding duplicate device type for \"%s\"...\n", | |
941 | addrname); | |
942 | return; | |
943 | } | |
944 | ||
945 | /* | |
946 | * Add the device and request the device data... | |
947 | */ | |
948 | ||
949 | add_cache(&(packet.address), addrname, NULL, NULL, NULL); | |
950 | ||
951 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, | |
952 | packet.community, CUPS_ASN1_GET_REQUEST, | |
953 | DEVICE_DESCRIPTION, DescriptionOID); | |
954 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, | |
955 | packet.community, CUPS_ASN1_GET_REQUEST, | |
956 | DEVICE_ID, DeviceIdOID); | |
957 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, | |
958 | packet.community, CUPS_ASN1_GET_REQUEST, | |
959 | DEVICE_URI, UriOID); | |
960 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, | |
961 | packet.community, CUPS_ASN1_GET_REQUEST, | |
962 | DEVICE_LOCATION, LocationOID); | |
963 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, | |
964 | packet.community, CUPS_ASN1_GET_REQUEST, | |
965 | DEVICE_PRODUCT, LexmarkProductOID); | |
966 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, | |
967 | packet.community, CUPS_ASN1_GET_REQUEST, | |
968 | DEVICE_PRODUCT, LexmarkProductOID2); | |
969 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, | |
970 | packet.community, CUPS_ASN1_GET_REQUEST, | |
ef55b745 | 971 | DEVICE_ID, LexmarkDeviceIdOID); |
749b1e90 MS |
972 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, |
973 | packet.community, CUPS_ASN1_GET_REQUEST, | |
974 | DEVICE_PRODUCT, XeroxProductOID); | |
975 | break; | |
976 | ||
977 | case DEVICE_DESCRIPTION : | |
978 | if (device && packet.object_type == CUPS_ASN1_OCTET_STRING) | |
979 | { | |
980 | /* | |
981 | * Update an existing cache entry... | |
982 | */ | |
983 | ||
984 | char make_model[256]; /* Make and model */ | |
985 | ||
986 | ||
d1c13e16 MS |
987 | if (strchr((char *)packet.object_value.string.bytes, ':') && |
988 | strchr((char *)packet.object_value.string.bytes, ';')) | |
749b1e90 MS |
989 | { |
990 | /* | |
991 | * Description is the IEEE-1284 device ID... | |
992 | */ | |
89d46774 | 993 | |
3dd9c340 MS |
994 | char *ptr; /* Pointer into device ID */ |
995 | ||
996 | for (ptr = (char *)packet.object_value.string.bytes; *ptr; ptr ++) | |
997 | if (*ptr == '\n') | |
998 | *ptr = ';'; /* A lot of bad printers put a newline */ | |
749b1e90 | 999 | if (!device->id) |
d1c13e16 | 1000 | device->id = strdup((char *)packet.object_value.string.bytes); |
89d46774 | 1001 | |
d1c13e16 MS |
1002 | backendGetMakeModel((char *)packet.object_value.string.bytes, |
1003 | make_model, sizeof(make_model)); | |
89d46774 | 1004 | |
749b1e90 MS |
1005 | if (device->info) |
1006 | free(device->info); | |
89d46774 | 1007 | |
749b1e90 MS |
1008 | device->info = strdup(make_model); |
1009 | } | |
1010 | else | |
1011 | { | |
1012 | /* | |
1013 | * Description is plain text... | |
1014 | */ | |
89d46774 | 1015 | |
d1c13e16 | 1016 | fix_make_model(make_model, (char *)packet.object_value.string.bytes, |
749b1e90 | 1017 | sizeof(make_model)); |
89d46774 | 1018 | |
749b1e90 MS |
1019 | if (device->info) |
1020 | free(device->info); | |
89d46774 | 1021 | |
d1c13e16 | 1022 | device->info = strdup((char *)packet.object_value.string.bytes); |
749b1e90 | 1023 | } |
89d46774 | 1024 | |
749b1e90 MS |
1025 | if (!device->make_and_model) |
1026 | device->make_and_model = strdup(make_model); | |
1027 | } | |
1028 | break; | |
89d46774 | 1029 | |
749b1e90 | 1030 | case DEVICE_ID : |
ef55b745 MS |
1031 | if (device && packet.object_type == CUPS_ASN1_OCTET_STRING && |
1032 | (!device->id || | |
1033 | strlen(device->id) < packet.object_value.string.num_bytes)) | |
749b1e90 MS |
1034 | { |
1035 | /* | |
1036 | * Update an existing cache entry... | |
1037 | */ | |
7a14d768 | 1038 | |
749b1e90 | 1039 | char make_model[256]; /* Make and model */ |
3dd9c340 | 1040 | char *ptr; /* Pointer into device ID */ |
89d46774 | 1041 | |
3dd9c340 MS |
1042 | for (ptr = (char *)packet.object_value.string.bytes; *ptr; ptr ++) |
1043 | if (*ptr == '\n') | |
1044 | *ptr = ';'; /* A lot of bad printers put a newline */ | |
749b1e90 MS |
1045 | if (device->id) |
1046 | free(device->id); | |
89d46774 | 1047 | |
d1c13e16 | 1048 | device->id = strdup((char *)packet.object_value.string.bytes); |
7a14d768 | 1049 | |
749b1e90 MS |
1050 | /* |
1051 | * Convert the ID to a make and model string... | |
1052 | */ | |
7a14d768 | 1053 | |
d1c13e16 MS |
1054 | backendGetMakeModel((char *)packet.object_value.string.bytes, |
1055 | make_model, sizeof(make_model)); | |
749b1e90 MS |
1056 | if (device->make_and_model) |
1057 | free(device->make_and_model); | |
7a14d768 | 1058 | |
749b1e90 MS |
1059 | device->make_and_model = strdup(make_model); |
1060 | } | |
1061 | break; | |
7a14d768 | 1062 | |
749b1e90 MS |
1063 | case DEVICE_LOCATION : |
1064 | if (device && packet.object_type == CUPS_ASN1_OCTET_STRING && | |
1065 | !device->location) | |
d1c13e16 | 1066 | device->location = strdup((char *)packet.object_value.string.bytes); |
749b1e90 | 1067 | break; |
7a14d768 | 1068 | |
749b1e90 MS |
1069 | case DEVICE_PRODUCT : |
1070 | if (device && packet.object_type == CUPS_ASN1_OCTET_STRING && | |
1071 | !device->id) | |
1072 | { | |
1073 | /* | |
1074 | * Update an existing cache entry... | |
1075 | */ | |
7a14d768 | 1076 | |
749b1e90 | 1077 | if (!device->info) |
d1c13e16 | 1078 | device->info = strdup((char *)packet.object_value.string.bytes); |
7a14d768 | 1079 | |
749b1e90 MS |
1080 | if (device->make_and_model) |
1081 | free(device->make_and_model); | |
7a14d768 | 1082 | |
d1c13e16 | 1083 | device->make_and_model = strdup((char *)packet.object_value.string.bytes); |
749b1e90 MS |
1084 | } |
1085 | break; | |
7a14d768 | 1086 | |
749b1e90 MS |
1087 | case DEVICE_URI : |
1088 | if (device && packet.object_type == CUPS_ASN1_OCTET_STRING && | |
12f89d24 | 1089 | !device->uri && packet.object_value.string.num_bytes > 3) |
749b1e90 MS |
1090 | { |
1091 | /* | |
1092 | * Update an existing cache entry... | |
1093 | */ | |
7a14d768 | 1094 | |
12f89d24 MS |
1095 | char scheme[32], /* URI scheme */ |
1096 | userpass[256], /* Username:password in URI */ | |
1097 | hostname[256], /* Hostname in URI */ | |
1098 | resource[1024]; /* Resource path in URI */ | |
1099 | int port; /* Port number in URI */ | |
1100 | ||
d1c13e16 | 1101 | if (!strncmp((char *)packet.object_value.string.bytes, "lpr:", 4)) |
749b1e90 MS |
1102 | { |
1103 | /* | |
1104 | * We want "lpd://..." for the URI... | |
1105 | */ | |
7a14d768 | 1106 | |
d1c13e16 | 1107 | packet.object_value.string.bytes[2] = 'd'; |
749b1e90 | 1108 | } |
7a14d768 | 1109 | |
12f89d24 MS |
1110 | if (httpSeparateURI(HTTP_URI_CODING_ALL, |
1111 | (char *)packet.object_value.string.bytes, | |
1112 | scheme, sizeof(scheme), | |
1113 | userpass, sizeof(userpass), | |
1114 | hostname, sizeof(hostname), &port, | |
1115 | resource, sizeof(resource)) >= HTTP_URI_OK) | |
1116 | device->uri = strdup((char *)packet.object_value.string.bytes); | |
749b1e90 MS |
1117 | } |
1118 | break; | |
89d46774 | 1119 | } |
1120 | } | |
1121 | ||
1122 | ||
1123 | /* | |
1124 | * 'run_time()' - Return the total running time... | |
1125 | */ | |
1126 | ||
1127 | static double /* O - Number of seconds */ | |
1128 | run_time(void) | |
1129 | { | |
1130 | struct timeval curtime; /* Current time */ | |
1131 | ||
1132 | ||
1133 | gettimeofday(&curtime, NULL); | |
1134 | ||
1135 | return (curtime.tv_sec - StartTime.tv_sec + | |
1136 | 0.000001 * (curtime.tv_usec - StartTime.tv_usec)); | |
1137 | } | |
1138 | ||
1139 | ||
1140 | /* | |
1141 | * 'scan_devices()' - Scan for devices using SNMP. | |
1142 | */ | |
1143 | ||
1144 | static void | |
22c9029b MS |
1145 | scan_devices(int ipv4, /* I - SNMP IPv4 socket */ |
1146 | int ipv6) /* I - SNMP IPv6 socket */ | |
89d46774 | 1147 | { |
22c9029b MS |
1148 | int fd, /* File descriptor for this address */ |
1149 | busy; /* Are we busy processing something? */ | |
89d46774 | 1150 | char *address, /* Current address */ |
1151 | *community; /* Current community */ | |
1152 | fd_set input; /* Input set for select() */ | |
1153 | struct timeval timeout; /* Timeout for select() */ | |
1154 | time_t endtime; /* End time for scan */ | |
1155 | http_addrlist_t *addrs, /* List of addresses */ | |
1156 | *addr; /* Current address */ | |
1157 | snmp_cache_t *device; /* Current device */ | |
22c9029b | 1158 | char temp[1024]; /* Temporary address string */ |
89d46774 | 1159 | |
1160 | ||
89d46774 | 1161 | gettimeofday(&StartTime, NULL); |
1162 | ||
89d46774 | 1163 | /* |
1164 | * First send all of the broadcast queries... | |
1165 | */ | |
1166 | ||
1167 | for (address = (char *)cupsArrayFirst(Addresses); | |
1168 | address; | |
1169 | address = (char *)cupsArrayNext(Addresses)) | |
1170 | { | |
1171 | if (!strcmp(address, "@LOCAL")) | |
1172 | addrs = get_interface_addresses(NULL); | |
1173 | else if (!strncmp(address, "@IF(", 4)) | |
1174 | { | |
1175 | char ifname[255]; /* Interface name */ | |
1176 | ||
89d46774 | 1177 | strlcpy(ifname, address + 4, sizeof(ifname)); |
1178 | if (ifname[0]) | |
1179 | ifname[strlen(ifname) - 1] = '\0'; | |
1180 | ||
1181 | addrs = get_interface_addresses(ifname); | |
1182 | } | |
1183 | else | |
22c9029b | 1184 | addrs = httpAddrGetList(address, AF_UNSPEC, NULL); |
89d46774 | 1185 | |
1186 | if (!addrs) | |
1187 | { | |
1188 | fprintf(stderr, "ERROR: Unable to scan \"%s\"!\n", address); | |
1189 | continue; | |
1190 | } | |
1191 | ||
1192 | for (community = (char *)cupsArrayFirst(Communities); | |
1193 | community; | |
1194 | community = (char *)cupsArrayNext(Communities)) | |
1195 | { | |
1196 | debug_printf("DEBUG: Scanning for devices in \"%s\" via \"%s\"...\n", | |
1197 | community, address); | |
1198 | ||
1199 | for (addr = addrs; addr; addr = addr->next) | |
22c9029b MS |
1200 | { |
1201 | #ifdef AF_INET6 | |
5ec1fd3d | 1202 | if (httpAddrFamily(&(addr->addr)) == AF_INET6) |
22c9029b MS |
1203 | fd = ipv6; |
1204 | else | |
1205 | #endif /* AF_INET6 */ | |
1206 | fd = ipv4; | |
1207 | ||
1208 | debug_printf("DEBUG: Sending get request to %s...\n", | |
1209 | httpAddrString(&(addr->addr), temp, sizeof(temp))); | |
1210 | ||
7a14d768 | 1211 | _cupsSNMPWrite(fd, &(addr->addr), CUPS_SNMP_VERSION_1, community, |
749b1e90 | 1212 | CUPS_ASN1_GET_REQUEST, DEVICE_TYPE, DeviceTypeOID); |
22c9029b | 1213 | } |
89d46774 | 1214 | } |
1215 | ||
1216 | httpAddrFreeList(addrs); | |
1217 | } | |
1218 | ||
1219 | /* | |
1220 | * Then read any responses that come in over the next 3 seconds... | |
1221 | */ | |
1222 | ||
ae71f5de | 1223 | endtime = time(NULL) + MaxRunTime; |
89d46774 | 1224 | |
1225 | FD_ZERO(&input); | |
1226 | ||
1227 | while (time(NULL) < endtime) | |
1228 | { | |
ae71f5de | 1229 | timeout.tv_sec = 2; |
89d46774 | 1230 | timeout.tv_usec = 0; |
1231 | ||
22c9029b MS |
1232 | FD_SET(ipv4, &input); |
1233 | if (ipv6 >= 0) | |
1234 | FD_SET(ipv6, &input); | |
1235 | ||
1236 | fd = ipv4 > ipv6 ? ipv4 : ipv6; | |
89d46774 | 1237 | if (select(fd + 1, &input, NULL, NULL, &timeout) < 0) |
1238 | { | |
22c9029b MS |
1239 | fprintf(stderr, "ERROR: %.3f select() for %d/%d failed: %s\n", run_time(), |
1240 | ipv4, ipv6, strerror(errno)); | |
89d46774 | 1241 | break; |
1242 | } | |
1243 | ||
22c9029b MS |
1244 | busy = 0; |
1245 | ||
1246 | if (FD_ISSET(ipv4, &input)) | |
1247 | { | |
1248 | read_snmp_response(ipv4); | |
1249 | busy = 1; | |
1250 | } | |
1251 | ||
1252 | if (ipv6 >= 0 && FD_ISSET(ipv6, &input)) | |
1253 | { | |
1254 | read_snmp_response(ipv6); | |
1255 | busy = 1; | |
1256 | } | |
1257 | ||
1258 | if (!busy) | |
749b1e90 MS |
1259 | { |
1260 | /* | |
1261 | * List devices with complete information... | |
1262 | */ | |
89d46774 | 1263 | |
749b1e90 | 1264 | int sent_something = 0; |
89d46774 | 1265 | |
749b1e90 MS |
1266 | for (device = (snmp_cache_t *)cupsArrayFirst(Devices); |
1267 | device; | |
1268 | device = (snmp_cache_t *)cupsArrayNext(Devices)) | |
1269 | if (!device->sent && device->info && device->make_and_model) | |
1270 | { | |
1271 | if (device->uri) | |
1272 | list_device(device); | |
1273 | else | |
1274 | probe_device(device); | |
1275 | ||
1276 | device->sent = sent_something = 1; | |
1277 | } | |
1278 | ||
1279 | if (!sent_something) | |
1280 | break; | |
1281 | } | |
1282 | } | |
89d46774 | 1283 | |
1284 | debug_printf("DEBUG: %.3f Scan complete!\n", run_time()); | |
1285 | } | |
1286 | ||
1287 | ||
89d46774 | 1288 | /* |
1289 | * 'try_connect()' - Try connecting on a port... | |
1290 | */ | |
1291 | ||
1292 | static int /* O - 0 on success or -1 on error */ | |
1293 | try_connect(http_addr_t *addr, /* I - Socket address */ | |
1294 | const char *addrname, /* I - Hostname or IP address */ | |
1295 | int port) /* I - Port number */ | |
1296 | { | |
1297 | int fd; /* Socket */ | |
1298 | int status; /* Connection status */ | |
1299 | ||
1300 | ||
1301 | debug_printf("DEBUG: %.3f Trying %s://%s:%d...\n", run_time(), | |
1302 | port == 515 ? "lpd" : "socket", addrname, port); | |
1303 | ||
5ec1fd3d | 1304 | if ((fd = socket(httpAddrFamily(addr), SOCK_STREAM, 0)) < 0) |
89d46774 | 1305 | { |
c0e1af83 | 1306 | fprintf(stderr, "ERROR: Unable to create socket: %s\n", |
1307 | strerror(errno)); | |
89d46774 | 1308 | return (-1); |
1309 | } | |
1310 | ||
22c9029b | 1311 | _httpAddrSetPort(addr, port); |
89d46774 | 1312 | |
89d46774 | 1313 | alarm(1); |
1314 | ||
7e86f2f6 | 1315 | status = connect(fd, (void *)addr, (socklen_t)httpAddrLength(addr)); |
89d46774 | 1316 | |
1317 | close(fd); | |
1318 | alarm(0); | |
1319 | ||
1320 | return (status); | |
1321 | } | |
1322 | ||
1323 | ||
1324 | /* | |
1325 | * 'update_cache()' - Update a cached device... | |
1326 | */ | |
1327 | ||
1328 | static void | |
1329 | update_cache(snmp_cache_t *device, /* I - Device */ | |
1330 | const char *uri, /* I - Device URI */ | |
1331 | const char *id, /* I - Device ID */ | |
1332 | const char *make_model) /* I - Device make and model */ | |
1333 | { | |
1334 | if (device->uri) | |
1335 | free(device->uri); | |
1336 | ||
1337 | device->uri = strdup(uri); | |
1338 | ||
1339 | if (id) | |
1340 | { | |
1341 | if (device->id) | |
1342 | free(device->id); | |
1343 | ||
1344 | device->id = strdup(id); | |
1345 | } | |
1346 | ||
1347 | if (make_model) | |
1348 | { | |
1349 | if (device->make_and_model) | |
1350 | free(device->make_and_model); | |
1351 | ||
1352 | device->make_and_model = strdup(make_model); | |
1353 | } | |
d09495fa | 1354 | |
1355 | list_device(device); | |
89d46774 | 1356 | } |