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Commit | Line | Data |
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89d46774 | 1 | /* |
f2d18633 | 2 | * "$Id$" |
89d46774 | 3 | * |
7e86f2f6 | 4 | * SNMP discovery backend for CUPS. |
89d46774 | 5 | * |
7e86f2f6 MS |
6 | * Copyright 2007-2014 by Apple Inc. |
7 | * Copyright 2006-2007 by Easy Software Products, all rights reserved. | |
89d46774 | 8 | * |
7e86f2f6 MS |
9 | * These coded instructions, statements, and computer programs are the |
10 | * property of Apple Inc. and are protected by Federal copyright | |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
12 | * "LICENSE" which should have been included with this file. If this | |
13 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
89d46774 | 14 | * |
7e86f2f6 | 15 | * This file is subject to the Apple OS-Developed Software exception. |
89d46774 | 16 | */ |
17 | ||
18 | /* | |
19 | * Include necessary headers. | |
20 | */ | |
21 | ||
ed486911 | 22 | #include "backend-private.h" |
89d46774 | 23 | #include <cups/array.h> |
24 | #include <cups/file.h> | |
91c84a35 | 25 | #include <cups/http-private.h> |
b94498cf | 26 | #include <regex.h> |
89d46774 | 27 | |
28 | ||
29 | /* | |
30 | * This backend implements SNMP printer discovery. It uses a broadcast- | |
b94498cf | 31 | * based approach to get SNMP response packets from potential printers, |
7a14d768 MS |
32 | * requesting OIDs from the Host and Port Monitor MIBs, does a URI |
33 | * lookup based on the device description string, and finally a probe of | |
34 | * port 9100 (AppSocket) and 515 (LPD). | |
89d46774 | 35 | * |
36 | * The current focus is on printers with internal network cards, although | |
7a14d768 | 37 | * the code also works with many external print servers as well. |
89d46774 | 38 | * |
39 | * The backend reads the snmp.conf file from the CUPS_SERVERROOT directory | |
40 | * which can contain comments, blank lines, or any number of the following | |
41 | * directives: | |
42 | * | |
43 | * Address ip-address | |
44 | * Address @LOCAL | |
45 | * Address @IF(name) | |
46 | * Community name | |
47 | * DebugLevel N | |
b94498cf | 48 | * DeviceURI "regex pattern" uri |
89d46774 | 49 | * HostNameLookups on |
50 | * HostNameLookups off | |
b94498cf | 51 | * MaxRunTime N |
89d46774 | 52 | * |
53 | * The default is to use: | |
54 | * | |
55 | * Address @LOCAL | |
56 | * Community public | |
57 | * DebugLevel 0 | |
58 | * HostNameLookups off | |
ae71f5de | 59 | * MaxRunTime 120 |
89d46774 | 60 | * |
61 | * This backend is known to work with the following network printers and | |
62 | * print servers: | |
63 | * | |
64 | * Axis OfficeBasic, 5400, 5600 | |
7a14d768 | 65 | * Brother |
89d46774 | 66 | * EPSON |
67 | * Genicom | |
68 | * HP JetDirect | |
69 | * Lexmark | |
70 | * Sharp | |
71 | * Tektronix | |
72 | * Xerox | |
73 | * | |
74 | * It does not currently work with: | |
75 | * | |
76 | * DLink | |
77 | * Linksys | |
78 | * Netgear | |
79 | * Okidata | |
80 | * | |
81 | * (for all of these, they do not support the Host MIB) | |
82 | */ | |
83 | ||
89d46774 | 84 | /* |
85 | * Types... | |
86 | */ | |
87 | ||
749b1e90 MS |
88 | enum /**** Request IDs for each field ****/ |
89 | { | |
90 | DEVICE_TYPE = 1, | |
91 | DEVICE_DESCRIPTION, | |
92 | DEVICE_LOCATION, | |
93 | DEVICE_ID, | |
94 | DEVICE_URI, | |
95 | DEVICE_PRODUCT | |
96 | }; | |
97 | ||
b94498cf | 98 | typedef struct device_uri_s /**** DeviceURI values ****/ |
99 | { | |
100 | regex_t re; /* Regular expression to match */ | |
101 | cups_array_t *uris; /* URIs */ | |
102 | } device_uri_t; | |
103 | ||
89d46774 | 104 | typedef struct snmp_cache_s /**** SNMP scan cache ****/ |
105 | { | |
106 | http_addr_t address; /* Address of device */ | |
107 | char *addrname, /* Name of device */ | |
108 | *uri, /* device-uri */ | |
109 | *id, /* device-id */ | |
7a14d768 | 110 | *info, /* device-info */ |
749b1e90 | 111 | *location, /* device-location */ |
89d46774 | 112 | *make_and_model; /* device-make-and-model */ |
749b1e90 | 113 | int sent; /* Has this device been listed? */ |
89d46774 | 114 | } snmp_cache_t; |
115 | ||
89d46774 | 116 | |
117 | /* | |
118 | * Local functions... | |
119 | */ | |
120 | ||
121 | static char *add_array(cups_array_t *a, const char *s); | |
122 | static void add_cache(http_addr_t *addr, const char *addrname, | |
123 | const char *uri, const char *id, | |
124 | const char *make_and_model); | |
b94498cf | 125 | static device_uri_t *add_device_uri(char *value); |
89d46774 | 126 | static void alarm_handler(int sig); |
89d46774 | 127 | static int compare_cache(snmp_cache_t *a, snmp_cache_t *b); |
128 | static void debug_printf(const char *format, ...); | |
129 | static void fix_make_model(char *make_model, | |
130 | const char *old_make_model, | |
131 | int make_model_size); | |
132 | static void free_array(cups_array_t *a); | |
133 | static void free_cache(void); | |
134 | static http_addrlist_t *get_interface_addresses(const char *ifname); | |
d09495fa | 135 | static void list_device(snmp_cache_t *cache); |
89d46774 | 136 | static const char *password_cb(const char *prompt); |
137 | static void probe_device(snmp_cache_t *device); | |
138 | static void read_snmp_conf(const char *address); | |
139 | static void read_snmp_response(int fd); | |
140 | static double run_time(void); | |
22c9029b | 141 | static void scan_devices(int ipv4, int ipv6); |
89d46774 | 142 | static int try_connect(http_addr_t *addr, const char *addrname, |
143 | int port); | |
144 | static void update_cache(snmp_cache_t *device, const char *uri, | |
145 | const char *id, const char *make_model); | |
146 | ||
147 | ||
148 | /* | |
149 | * Local globals... | |
150 | */ | |
151 | ||
152 | static cups_array_t *Addresses = NULL; | |
153 | static cups_array_t *Communities = NULL; | |
154 | static cups_array_t *Devices = NULL; | |
155 | static int DebugLevel = 0; | |
749b1e90 MS |
156 | static const int DescriptionOID[] = { CUPS_OID_hrDeviceDescr, 1, -1 }; |
157 | static const int LocationOID[] = { CUPS_OID_sysLocation, 0, -1 }; | |
7a14d768 | 158 | static const int DeviceTypeOID[] = { CUPS_OID_hrDeviceType, 1, -1 }; |
7a14d768 | 159 | static const int DeviceIdOID[] = { CUPS_OID_ppmPrinterIEEE1284DeviceId, 1, -1 }; |
749b1e90 MS |
160 | static const int UriOID[] = { CUPS_OID_ppmPortServiceNameOrURI, 1, 1, -1 }; |
161 | static const int LexmarkProductOID[] = { 1,3,6,1,4,1,641,2,1,2,1,2,1,-1 }; | |
162 | static const int LexmarkProductOID2[] = { 1,3,6,1,4,1,674,10898,100,2,1,2,1,2,1,-1 }; | |
163 | static const int LexmarkDeviceIdOID[] = { 1,3,6,1,4,1,641,2,1,2,1,3,1,-1 }; | |
164 | static const int XeroxProductOID[] = { 1,3,6,1,4,1,128,2,1,3,1,2,0,-1 }; | |
b94498cf | 165 | static cups_array_t *DeviceURIs = NULL; |
89d46774 | 166 | static int HostNameLookups = 0; |
ae71f5de | 167 | static int MaxRunTime = 120; |
89d46774 | 168 | static struct timeval StartTime; |
169 | ||
170 | ||
171 | /* | |
172 | * 'main()' - Discover printers via SNMP. | |
173 | */ | |
174 | ||
175 | int /* O - Exit status */ | |
176 | main(int argc, /* I - Number of command-line arguments (6 or 7) */ | |
177 | char *argv[]) /* I - Command-line arguments */ | |
178 | { | |
22c9029b MS |
179 | int ipv4, /* SNMP IPv4 socket */ |
180 | ipv6; /* SNMP IPv6 socket */ | |
d09495fa | 181 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) |
182 | struct sigaction action; /* Actions for POSIX signals */ | |
183 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
89d46774 | 184 | |
185 | ||
186 | /* | |
187 | * Check command-line options... | |
188 | */ | |
189 | ||
190 | if (argc > 2) | |
191 | { | |
0837b7e8 | 192 | _cupsLangPuts(stderr, _("Usage: snmp [host-or-ip-address]")); |
89d46774 | 193 | return (1); |
194 | } | |
195 | ||
196 | /* | |
197 | * Set the password callback for IPP operations... | |
198 | */ | |
199 | ||
200 | cupsSetPasswordCB(password_cb); | |
201 | ||
d09495fa | 202 | /* |
203 | * Catch SIGALRM signals... | |
204 | */ | |
205 | ||
206 | #ifdef HAVE_SIGSET | |
207 | sigset(SIGALRM, alarm_handler); | |
208 | #elif defined(HAVE_SIGACTION) | |
209 | memset(&action, 0, sizeof(action)); | |
210 | ||
211 | sigemptyset(&action.sa_mask); | |
212 | sigaddset(&action.sa_mask, SIGALRM); | |
213 | action.sa_handler = alarm_handler; | |
214 | sigaction(SIGALRM, &action, NULL); | |
215 | #else | |
216 | signal(SIGALRM, alarm_handler); | |
217 | #endif /* HAVE_SIGSET */ | |
218 | ||
89d46774 | 219 | /* |
220 | * Open the SNMP socket... | |
221 | */ | |
222 | ||
22c9029b | 223 | if ((ipv4 = _cupsSNMPOpen(AF_INET)) < 0) |
89d46774 | 224 | return (1); |
225 | ||
22c9029b MS |
226 | #ifdef AF_INET6 |
227 | if ((ipv6 = _cupsSNMPOpen(AF_INET6)) < 0) | |
37e7e6e0 | 228 | perror("DEBUG: Unable to create IPv6 socket"); |
22c9029b MS |
229 | #else |
230 | ipv6 = -1; | |
231 | #endif /* AF_INET6 */ | |
232 | ||
89d46774 | 233 | /* |
234 | * Read the configuration file and any cache data... | |
235 | */ | |
236 | ||
237 | read_snmp_conf(argv[1]); | |
238 | ||
7a14d768 | 239 | _cupsSNMPSetDebug(DebugLevel); |
91c84a35 | 240 | |
89d46774 | 241 | Devices = cupsArrayNew((cups_array_func_t)compare_cache, NULL); |
242 | ||
243 | /* | |
244 | * Scan for devices... | |
245 | */ | |
246 | ||
22c9029b | 247 | scan_devices(ipv4, ipv6); |
89d46774 | 248 | |
89d46774 | 249 | /* |
250 | * Close, free, and return with no errors... | |
251 | */ | |
252 | ||
22c9029b MS |
253 | _cupsSNMPClose(ipv4); |
254 | if (ipv6 >= 0) | |
255 | _cupsSNMPClose(ipv6); | |
89d46774 | 256 | |
257 | free_array(Addresses); | |
258 | free_array(Communities); | |
259 | free_cache(); | |
260 | ||
261 | return (0); | |
262 | } | |
263 | ||
264 | ||
265 | /* | |
266 | * 'add_array()' - Add a string to an array. | |
267 | */ | |
268 | ||
269 | static char * /* O - New string */ | |
270 | add_array(cups_array_t *a, /* I - Array */ | |
271 | const char *s) /* I - String to add */ | |
272 | { | |
273 | char *dups; /* New string */ | |
274 | ||
275 | ||
276 | dups = strdup(s); | |
277 | ||
278 | cupsArrayAdd(a, dups); | |
279 | ||
280 | return (dups); | |
281 | } | |
282 | ||
283 | ||
284 | /* | |
285 | * 'add_cache()' - Add a cached device... | |
286 | */ | |
287 | ||
288 | static void | |
289 | add_cache(http_addr_t *addr, /* I - Device IP address */ | |
290 | const char *addrname, /* I - IP address or name string */ | |
291 | const char *uri, /* I - Device URI */ | |
292 | const char *id, /* I - 1284 device ID */ | |
293 | const char *make_and_model) /* I - Make and model */ | |
294 | { | |
295 | snmp_cache_t *temp; /* New device entry */ | |
296 | ||
297 | ||
298 | debug_printf("DEBUG: add_cache(addr=%p, addrname=\"%s\", uri=\"%s\", " | |
299 | "id=\"%s\", make_and_model=\"%s\")\n", | |
d09495fa | 300 | addr, addrname, uri ? uri : "(null)", id ? id : "(null)", |
89d46774 | 301 | make_and_model ? make_and_model : "(null)"); |
302 | ||
303 | temp = calloc(1, sizeof(snmp_cache_t)); | |
304 | memcpy(&(temp->address), addr, sizeof(temp->address)); | |
305 | ||
306 | temp->addrname = strdup(addrname); | |
307 | ||
308 | if (uri) | |
309 | temp->uri = strdup(uri); | |
310 | ||
311 | if (id) | |
312 | temp->id = strdup(id); | |
313 | ||
314 | if (make_and_model) | |
315 | temp->make_and_model = strdup(make_and_model); | |
316 | ||
317 | cupsArrayAdd(Devices, temp); | |
d09495fa | 318 | |
319 | if (uri) | |
320 | list_device(temp); | |
89d46774 | 321 | } |
322 | ||
323 | ||
b94498cf | 324 | /* |
325 | * 'add_device_uri()' - Add a device URI to the cache. | |
326 | * | |
327 | * The value string is modified (chopped up) as needed. | |
328 | */ | |
329 | ||
330 | static device_uri_t * /* O - Device URI */ | |
331 | add_device_uri(char *value) /* I - Value from snmp.conf */ | |
332 | { | |
333 | device_uri_t *device_uri; /* Device URI */ | |
334 | char *start; /* Start of value */ | |
335 | ||
336 | ||
337 | /* | |
338 | * Allocate memory as needed... | |
339 | */ | |
340 | ||
341 | if (!DeviceURIs) | |
342 | DeviceURIs = cupsArrayNew(NULL, NULL); | |
343 | ||
344 | if (!DeviceURIs) | |
345 | return (NULL); | |
346 | ||
347 | if ((device_uri = calloc(1, sizeof(device_uri_t))) == NULL) | |
348 | return (NULL); | |
349 | ||
350 | if ((device_uri->uris = cupsArrayNew(NULL, NULL)) == NULL) | |
351 | { | |
352 | free(device_uri); | |
353 | return (NULL); | |
354 | } | |
355 | ||
356 | /* | |
357 | * Scan the value string for the regular expression and URI(s)... | |
358 | */ | |
359 | ||
360 | value ++; /* Skip leading " */ | |
361 | ||
362 | for (start = value; *value && *value != '\"'; value ++) | |
363 | if (*value == '\\' && value[1]) | |
364 | _cups_strcpy(value, value + 1); | |
365 | ||
366 | if (!*value) | |
367 | { | |
368 | fputs("ERROR: Missing end quote for DeviceURI!\n", stderr); | |
369 | ||
370 | cupsArrayDelete(device_uri->uris); | |
371 | free(device_uri); | |
372 | ||
373 | return (NULL); | |
374 | } | |
375 | ||
376 | *value++ = '\0'; | |
377 | ||
378 | if (regcomp(&(device_uri->re), start, REG_EXTENDED | REG_ICASE)) | |
379 | { | |
380 | fputs("ERROR: Bad regular expression for DeviceURI!\n", stderr); | |
381 | ||
382 | cupsArrayDelete(device_uri->uris); | |
383 | free(device_uri); | |
384 | ||
385 | return (NULL); | |
386 | } | |
387 | ||
388 | while (*value) | |
389 | { | |
390 | while (isspace(*value & 255)) | |
391 | value ++; | |
392 | ||
393 | if (!*value) | |
394 | break; | |
395 | ||
396 | for (start = value; *value && !isspace(*value & 255); value ++); | |
397 | ||
398 | if (*value) | |
399 | *value++ = '\0'; | |
400 | ||
401 | cupsArrayAdd(device_uri->uris, strdup(start)); | |
402 | } | |
403 | ||
404 | /* | |
405 | * Add the device URI to the list and return it... | |
406 | */ | |
407 | ||
408 | cupsArrayAdd(DeviceURIs, device_uri); | |
409 | ||
410 | return (device_uri); | |
411 | } | |
412 | ||
413 | ||
89d46774 | 414 | /* |
415 | * 'alarm_handler()' - Handle alarm signals... | |
416 | */ | |
417 | ||
418 | static void | |
419 | alarm_handler(int sig) /* I - Signal number */ | |
420 | { | |
421 | /* | |
422 | * Do nothing... | |
423 | */ | |
424 | ||
425 | (void)sig; | |
426 | ||
d09495fa | 427 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) |
428 | signal(SIGALRM, alarm_handler); | |
429 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
430 | ||
89d46774 | 431 | if (DebugLevel) |
432 | write(2, "DEBUG: ALARM!\n", 14); | |
433 | } | |
434 | ||
435 | ||
89d46774 | 436 | /* |
437 | * 'compare_cache()' - Compare two cache entries. | |
438 | */ | |
439 | ||
440 | static int /* O - Result of comparison */ | |
441 | compare_cache(snmp_cache_t *a, /* I - First cache entry */ | |
442 | snmp_cache_t *b) /* I - Second cache entry */ | |
443 | { | |
88f9aafc | 444 | return (_cups_strcasecmp(a->addrname, b->addrname)); |
89d46774 | 445 | } |
446 | ||
447 | ||
448 | /* | |
449 | * 'debug_printf()' - Display some debugging information. | |
450 | */ | |
451 | ||
452 | static void | |
453 | debug_printf(const char *format, /* I - Printf-style format string */ | |
454 | ...) /* I - Additional arguments as needed */ | |
455 | { | |
456 | va_list ap; /* Pointer to arguments */ | |
457 | ||
458 | ||
459 | if (!DebugLevel) | |
460 | return; | |
461 | ||
462 | va_start(ap, format); | |
463 | vfprintf(stderr, format, ap); | |
464 | va_end(ap); | |
465 | } | |
466 | ||
467 | ||
468 | /* | |
469 | * 'fix_make_model()' - Fix common problems in the make-and-model string. | |
470 | */ | |
471 | ||
472 | static void | |
473 | fix_make_model( | |
474 | char *make_model, /* I - New make-and-model string */ | |
475 | const char *old_make_model, /* I - Old make-and-model string */ | |
476 | int make_model_size) /* I - Size of new string buffer */ | |
477 | { | |
a74454a7 | 478 | char *mmptr; /* Pointer into make-and-model string */ |
89d46774 | 479 | |
480 | ||
481 | /* | |
482 | * Fix some common problems with the make-and-model string so | |
483 | * that printer driver detection works better... | |
484 | */ | |
485 | ||
88f9aafc | 486 | if (!_cups_strncasecmp(old_make_model, "Hewlett-Packard", 15)) |
89d46774 | 487 | { |
488 | /* | |
489 | * Strip leading Hewlett-Packard and hp prefixes and replace | |
490 | * with a single HP manufacturer prefix... | |
491 | */ | |
492 | ||
a74454a7 | 493 | mmptr = (char *)old_make_model + 15; |
89d46774 | 494 | |
495 | while (isspace(*mmptr & 255)) | |
496 | mmptr ++; | |
497 | ||
88f9aafc | 498 | if (!_cups_strncasecmp(mmptr, "hp", 2)) |
89d46774 | 499 | { |
500 | mmptr += 2; | |
501 | ||
502 | while (isspace(*mmptr & 255)) | |
503 | mmptr ++; | |
504 | } | |
505 | ||
506 | make_model[0] = 'H'; | |
507 | make_model[1] = 'P'; | |
508 | make_model[2] = ' '; | |
07623986 | 509 | strlcpy(make_model + 3, mmptr, (size_t)make_model_size - 3); |
89d46774 | 510 | } |
88f9aafc | 511 | else if (!_cups_strncasecmp(old_make_model, "deskjet", 7)) |
07623986 | 512 | snprintf(make_model, (size_t)make_model_size, "HP DeskJet%s", old_make_model + 7); |
88f9aafc | 513 | else if (!_cups_strncasecmp(old_make_model, "officejet", 9)) |
07623986 | 514 | snprintf(make_model, (size_t)make_model_size, "HP OfficeJet%s", old_make_model + 9); |
88f9aafc | 515 | else if (!_cups_strncasecmp(old_make_model, "stylus_pro_", 11)) |
07623986 | 516 | snprintf(make_model, (size_t)make_model_size, "EPSON Stylus Pro %s", old_make_model + 11); |
89d46774 | 517 | else |
07623986 | 518 | strlcpy(make_model, old_make_model, (size_t)make_model_size); |
89d46774 | 519 | |
520 | if ((mmptr = strstr(make_model, ", Inc.,")) != NULL) | |
521 | { | |
522 | /* | |
523 | * Strip inc. from name, e.g. "Tektronix, Inc., Phaser 560" | |
524 | * becomes "Tektronix Phaser 560"... | |
525 | */ | |
526 | ||
a74454a7 | 527 | _cups_strcpy(mmptr, mmptr + 7); |
528 | } | |
529 | ||
d09495fa | 530 | if ((mmptr = strstr(make_model, " Network")) != NULL) |
531 | { | |
532 | /* | |
533 | * Drop unnecessary informational text, e.g. "Xerox DocuPrint N2025 | |
534 | * Network LaserJet - 2.12" becomes "Xerox DocuPrint N2025"... | |
535 | */ | |
536 | ||
537 | *mmptr = '\0'; | |
538 | } | |
539 | ||
a74454a7 | 540 | if ((mmptr = strchr(make_model, ',')) != NULL) |
541 | { | |
542 | /* | |
543 | * Drop anything after a trailing comma... | |
544 | */ | |
545 | ||
546 | *mmptr = '\0'; | |
89d46774 | 547 | } |
548 | } | |
549 | ||
550 | ||
551 | /* | |
552 | * 'free_array()' - Free an array of strings. | |
553 | */ | |
554 | ||
555 | static void | |
556 | free_array(cups_array_t *a) /* I - Array */ | |
557 | { | |
558 | char *s; /* Current string */ | |
559 | ||
560 | ||
561 | for (s = (char *)cupsArrayFirst(a); s; s = (char *)cupsArrayNext(a)) | |
562 | free(s); | |
563 | ||
564 | cupsArrayDelete(a); | |
565 | } | |
566 | ||
567 | ||
568 | /* | |
569 | * 'free_cache()' - Free the array of cached devices. | |
570 | */ | |
571 | ||
572 | static void | |
573 | free_cache(void) | |
574 | { | |
575 | snmp_cache_t *cache; /* Cached device */ | |
576 | ||
577 | ||
578 | for (cache = (snmp_cache_t *)cupsArrayFirst(Devices); | |
579 | cache; | |
580 | cache = (snmp_cache_t *)cupsArrayNext(Devices)) | |
581 | { | |
582 | free(cache->addrname); | |
583 | ||
584 | if (cache->uri) | |
585 | free(cache->uri); | |
586 | ||
587 | if (cache->id) | |
588 | free(cache->id); | |
589 | ||
590 | if (cache->make_and_model) | |
591 | free(cache->make_and_model); | |
592 | ||
593 | free(cache); | |
594 | } | |
595 | ||
596 | cupsArrayDelete(Devices); | |
597 | Devices = NULL; | |
598 | } | |
599 | ||
600 | ||
601 | /* | |
602 | * 'get_interface_addresses()' - Get the broadcast address(es) associated | |
603 | * with an interface. | |
604 | */ | |
605 | ||
606 | static http_addrlist_t * /* O - List of addresses */ | |
607 | get_interface_addresses( | |
608 | const char *ifname) /* I - Interface name */ | |
609 | { | |
610 | struct ifaddrs *addrs, /* Interface address list */ | |
611 | *addr; /* Current interface address */ | |
612 | http_addrlist_t *first, /* First address in list */ | |
613 | *last, /* Last address in list */ | |
614 | *current; /* Current address */ | |
615 | ||
616 | ||
617 | if (getifaddrs(&addrs) < 0) | |
618 | return (NULL); | |
619 | ||
620 | for (addr = addrs, first = NULL, last = NULL; addr; addr = addr->ifa_next) | |
621 | if ((addr->ifa_flags & IFF_BROADCAST) && addr->ifa_broadaddr && | |
622 | addr->ifa_broadaddr->sa_family == AF_INET && | |
623 | (!ifname || !strcmp(ifname, addr->ifa_name))) | |
624 | { | |
625 | current = calloc(1, sizeof(http_addrlist_t)); | |
626 | ||
627 | memcpy(&(current->addr), addr->ifa_broadaddr, | |
628 | sizeof(struct sockaddr_in)); | |
629 | ||
630 | if (!last) | |
631 | first = current; | |
632 | else | |
633 | last->next = current; | |
634 | ||
635 | last = current; | |
636 | } | |
637 | ||
638 | freeifaddrs(addrs); | |
639 | ||
640 | return (first); | |
641 | } | |
642 | ||
643 | ||
89d46774 | 644 | /* |
d09495fa | 645 | * 'list_device()' - List a device we found... |
89d46774 | 646 | */ |
647 | ||
648 | static void | |
d09495fa | 649 | list_device(snmp_cache_t *cache) /* I - Cached device */ |
89d46774 | 650 | { |
d09495fa | 651 | if (cache->uri) |
749b1e90 MS |
652 | cupsBackendReport("network", cache->uri, cache->make_and_model, |
653 | cache->info, cache->id, cache->location); | |
89d46774 | 654 | } |
655 | ||
656 | ||
89d46774 | 657 | /* |
658 | * 'password_cb()' - Handle authentication requests. | |
659 | * | |
660 | * All we do right now is return NULL, indicating that no authentication | |
661 | * is possible. | |
662 | */ | |
663 | ||
664 | static const char * /* O - Password (NULL) */ | |
665 | password_cb(const char *prompt) /* I - Prompt message */ | |
666 | { | |
667 | (void)prompt; /* Anti-compiler-warning-code */ | |
668 | ||
669 | return (NULL); | |
670 | } | |
671 | ||
672 | ||
673 | /* | |
674 | * 'probe_device()' - Probe a device to discover whether it is a printer. | |
675 | * | |
676 | * TODO: Try using the Port Monitor MIB to discover the correct protocol | |
677 | * to use - first need a commercially-available printer that supports | |
678 | * it, though... | |
679 | */ | |
680 | ||
681 | static void | |
682 | probe_device(snmp_cache_t *device) /* I - Device */ | |
683 | { | |
b94498cf | 684 | char uri[1024], /* Full device URI */ |
685 | *uriptr, /* Pointer into URI */ | |
686 | *format; /* Format string for device */ | |
687 | device_uri_t *device_uri; /* Current DeviceURI match */ | |
89d46774 | 688 | |
689 | ||
89d46774 | 690 | debug_printf("DEBUG: %.3f Probing %s...\n", run_time(), device->addrname); |
691 | ||
b94498cf | 692 | #ifdef __APPLE__ |
693 | /* | |
22c9029b | 694 | * If the printer supports Bonjour/mDNS, don't report it from the SNMP backend. |
b94498cf | 695 | */ |
d09495fa | 696 | |
b94498cf | 697 | if (!try_connect(&(device->address), device->addrname, 5353)) |
d09495fa | 698 | { |
b94498cf | 699 | debug_printf("DEBUG: %s supports mDNS, not reporting!\n", device->addrname); |
700 | return; | |
d09495fa | 701 | } |
b94498cf | 702 | #endif /* __APPLE__ */ |
d09495fa | 703 | |
b94498cf | 704 | /* |
705 | * Lookup the device in the match table... | |
706 | */ | |
89d46774 | 707 | |
b94498cf | 708 | for (device_uri = (device_uri_t *)cupsArrayFirst(DeviceURIs); |
709 | device_uri; | |
710 | device_uri = (device_uri_t *)cupsArrayNext(DeviceURIs)) | |
ac884b6a MS |
711 | if (device->make_and_model && |
712 | !regexec(&(device_uri->re), device->make_and_model, 0, NULL, 0)) | |
89d46774 | 713 | { |
d09495fa | 714 | /* |
b94498cf | 715 | * Found a match, add the URIs... |
89d46774 | 716 | */ |
717 | ||
b94498cf | 718 | for (format = (char *)cupsArrayFirst(device_uri->uris); |
719 | format; | |
720 | format = (char *)cupsArrayNext(device_uri->uris)) | |
89d46774 | 721 | { |
b94498cf | 722 | for (uriptr = uri; *format && uriptr < (uri + sizeof(uri) - 1);) |
723 | if (*format == '%' && format[1] == 's') | |
89d46774 | 724 | { |
b94498cf | 725 | /* |
726 | * Insert hostname/address... | |
727 | */ | |
89d46774 | 728 | |
7e86f2f6 | 729 | strlcpy(uriptr, device->addrname, sizeof(uri) - (size_t)(uriptr - uri)); |
b94498cf | 730 | uriptr += strlen(uriptr); |
731 | format += 2; | |
732 | } | |
733 | else | |
734 | *uriptr++ = *format++; | |
89d46774 | 735 | |
b94498cf | 736 | *uriptr = '\0'; |
89d46774 | 737 | |
b94498cf | 738 | update_cache(device, uri, NULL, NULL); |
89d46774 | 739 | } |
740 | ||
89d46774 | 741 | return; |
b94498cf | 742 | } |
89d46774 | 743 | |
744 | /* | |
b94498cf | 745 | * Then try the standard ports... |
89d46774 | 746 | */ |
747 | ||
748 | if (!try_connect(&(device->address), device->addrname, 9100)) | |
749 | { | |
750 | debug_printf("DEBUG: %s supports AppSocket!\n", device->addrname); | |
751 | ||
752 | snprintf(uri, sizeof(uri), "socket://%s", device->addrname); | |
753 | update_cache(device, uri, NULL, NULL); | |
754 | } | |
755 | else if (!try_connect(&(device->address), device->addrname, 515)) | |
756 | { | |
757 | debug_printf("DEBUG: %s supports LPD!\n", device->addrname); | |
758 | ||
759 | snprintf(uri, sizeof(uri), "lpd://%s/", device->addrname); | |
760 | update_cache(device, uri, NULL, NULL); | |
761 | } | |
762 | } | |
763 | ||
764 | ||
765 | /* | |
766 | * 'read_snmp_conf()' - Read the snmp.conf file. | |
767 | */ | |
768 | ||
769 | static void | |
770 | read_snmp_conf(const char *address) /* I - Single address to probe */ | |
771 | { | |
772 | cups_file_t *fp; /* File pointer */ | |
773 | char filename[1024], /* Filename */ | |
774 | line[1024], /* Line from file */ | |
775 | *value; /* Value on line */ | |
776 | int linenum; /* Line number */ | |
777 | const char *cups_serverroot; /* CUPS_SERVERROOT env var */ | |
778 | const char *debug; /* CUPS_DEBUG_LEVEL env var */ | |
d09495fa | 779 | const char *runtime; /* CUPS_MAX_RUN_TIME env var */ |
89d46774 | 780 | |
781 | ||
782 | /* | |
783 | * Initialize the global address and community lists... | |
784 | */ | |
785 | ||
786 | Addresses = cupsArrayNew(NULL, NULL); | |
787 | Communities = cupsArrayNew(NULL, NULL); | |
788 | ||
789 | if (address) | |
790 | add_array(Addresses, address); | |
791 | ||
792 | if ((debug = getenv("CUPS_DEBUG_LEVEL")) != NULL) | |
793 | DebugLevel = atoi(debug); | |
794 | ||
d09495fa | 795 | if ((runtime = getenv("CUPS_MAX_RUN_TIME")) != NULL) |
796 | MaxRunTime = atoi(runtime); | |
797 | ||
89d46774 | 798 | /* |
799 | * Find the snmp.conf file... | |
800 | */ | |
801 | ||
802 | if ((cups_serverroot = getenv("CUPS_SERVERROOT")) == NULL) | |
803 | cups_serverroot = CUPS_SERVERROOT; | |
804 | ||
805 | snprintf(filename, sizeof(filename), "%s/snmp.conf", cups_serverroot); | |
806 | ||
807 | if ((fp = cupsFileOpen(filename, "r")) != NULL) | |
808 | { | |
809 | /* | |
810 | * Read the snmp.conf file... | |
811 | */ | |
812 | ||
813 | linenum = 0; | |
814 | ||
815 | while (cupsFileGetConf(fp, line, sizeof(line), &value, &linenum)) | |
816 | { | |
817 | if (!value) | |
818 | fprintf(stderr, "ERROR: Missing value on line %d of %s!\n", linenum, | |
819 | filename); | |
88f9aafc | 820 | else if (!_cups_strcasecmp(line, "Address")) |
89d46774 | 821 | { |
822 | if (!address) | |
823 | add_array(Addresses, value); | |
824 | } | |
88f9aafc | 825 | else if (!_cups_strcasecmp(line, "Community")) |
89d46774 | 826 | add_array(Communities, value); |
88f9aafc | 827 | else if (!_cups_strcasecmp(line, "DebugLevel")) |
89d46774 | 828 | DebugLevel = atoi(value); |
88f9aafc | 829 | else if (!_cups_strcasecmp(line, "DeviceURI")) |
b94498cf | 830 | { |
831 | if (*value != '\"') | |
832 | fprintf(stderr, | |
833 | "ERROR: Missing double quote for regular expression on " | |
834 | "line %d of %s!\n", linenum, filename); | |
835 | else | |
836 | add_device_uri(value); | |
837 | } | |
88f9aafc MS |
838 | else if (!_cups_strcasecmp(line, "HostNameLookups")) |
839 | HostNameLookups = !_cups_strcasecmp(value, "on") || | |
840 | !_cups_strcasecmp(value, "yes") || | |
841 | !_cups_strcasecmp(value, "true") || | |
842 | !_cups_strcasecmp(value, "double"); | |
843 | else if (!_cups_strcasecmp(line, "MaxRunTime")) | |
d09495fa | 844 | MaxRunTime = atoi(value); |
89d46774 | 845 | else |
846 | fprintf(stderr, "ERROR: Unknown directive %s on line %d of %s!\n", | |
847 | line, linenum, filename); | |
848 | } | |
849 | ||
850 | cupsFileClose(fp); | |
851 | } | |
852 | ||
853 | /* | |
854 | * Use defaults if parameters are undefined... | |
855 | */ | |
856 | ||
857 | if (cupsArrayCount(Addresses) == 0) | |
858 | { | |
bc44d920 | 859 | /* |
860 | * If we have no addresses, exit immediately... | |
861 | */ | |
862 | ||
863 | fprintf(stderr, | |
864 | "DEBUG: No address specified and no Address line in %s...\n", | |
865 | filename); | |
866 | exit(0); | |
89d46774 | 867 | } |
868 | ||
869 | if (cupsArrayCount(Communities) == 0) | |
870 | { | |
871 | fputs("INFO: Using default SNMP Community public\n", stderr); | |
872 | add_array(Communities, "public"); | |
873 | } | |
874 | } | |
875 | ||
876 | ||
877 | /* | |
878 | * 'read_snmp_response()' - Read and parse a SNMP response... | |
879 | */ | |
880 | ||
881 | static void | |
882 | read_snmp_response(int fd) /* I - SNMP socket file descriptor */ | |
883 | { | |
89d46774 | 884 | char addrname[256]; /* Source address name */ |
91c84a35 | 885 | cups_snmp_t packet; /* Decoded packet */ |
89d46774 | 886 | snmp_cache_t key, /* Search key */ |
887 | *device; /* Matching device */ | |
888 | ||
889 | ||
890 | /* | |
891 | * Read the response data... | |
892 | */ | |
893 | ||
7a14d768 | 894 | if (!_cupsSNMPRead(fd, &packet, -1.0)) |
89d46774 | 895 | { |
896 | fprintf(stderr, "ERROR: Unable to read data from socket: %s\n", | |
897 | strerror(errno)); | |
898 | return; | |
899 | } | |
900 | ||
901 | if (HostNameLookups) | |
91c84a35 | 902 | httpAddrLookup(&(packet.address), addrname, sizeof(addrname)); |
89d46774 | 903 | else |
91c84a35 | 904 | httpAddrString(&(packet.address), addrname, sizeof(addrname)); |
89d46774 | 905 | |
91c84a35 | 906 | debug_printf("DEBUG: %.3f Received data from %s...\n", run_time(), addrname); |
89d46774 | 907 | |
908 | /* | |
909 | * Look for the response status code in the SNMP message header... | |
910 | */ | |
911 | ||
91c84a35 | 912 | if (packet.error) |
89d46774 | 913 | { |
91c84a35 MS |
914 | fprintf(stderr, "ERROR: Bad SNMP packet from %s: %s\n", addrname, |
915 | packet.error); | |
89d46774 | 916 | |
917 | return; | |
918 | } | |
919 | ||
920 | debug_printf("DEBUG: community=\"%s\"\n", packet.community); | |
921 | debug_printf("DEBUG: request-id=%d\n", packet.request_id); | |
922 | debug_printf("DEBUG: error-status=%d\n", packet.error_status); | |
923 | ||
771bd8cb | 924 | if (packet.error_status && packet.request_id != DEVICE_TYPE) |
89d46774 | 925 | return; |
926 | ||
927 | /* | |
928 | * Find a matching device in the cache... | |
929 | */ | |
930 | ||
8ca02f3c | 931 | key.addrname = addrname; |
932 | device = (snmp_cache_t *)cupsArrayFind(Devices, &key); | |
89d46774 | 933 | |
934 | /* | |
935 | * Process the message... | |
936 | */ | |
937 | ||
749b1e90 | 938 | switch (packet.request_id) |
89d46774 | 939 | { |
749b1e90 MS |
940 | case DEVICE_TYPE : |
941 | /* | |
942 | * Got the device type response... | |
943 | */ | |
944 | ||
945 | if (device) | |
946 | { | |
947 | debug_printf("DEBUG: Discarding duplicate device type for \"%s\"...\n", | |
948 | addrname); | |
949 | return; | |
950 | } | |
951 | ||
952 | /* | |
953 | * Add the device and request the device data... | |
954 | */ | |
955 | ||
956 | add_cache(&(packet.address), addrname, NULL, NULL, NULL); | |
957 | ||
958 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, | |
959 | packet.community, CUPS_ASN1_GET_REQUEST, | |
960 | DEVICE_DESCRIPTION, DescriptionOID); | |
961 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, | |
962 | packet.community, CUPS_ASN1_GET_REQUEST, | |
963 | DEVICE_ID, DeviceIdOID); | |
964 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, | |
965 | packet.community, CUPS_ASN1_GET_REQUEST, | |
966 | DEVICE_URI, UriOID); | |
967 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, | |
968 | packet.community, CUPS_ASN1_GET_REQUEST, | |
969 | DEVICE_LOCATION, LocationOID); | |
970 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, | |
971 | packet.community, CUPS_ASN1_GET_REQUEST, | |
972 | DEVICE_PRODUCT, LexmarkProductOID); | |
973 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, | |
974 | packet.community, CUPS_ASN1_GET_REQUEST, | |
975 | DEVICE_PRODUCT, LexmarkProductOID2); | |
976 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, | |
977 | packet.community, CUPS_ASN1_GET_REQUEST, | |
ef55b745 | 978 | DEVICE_ID, LexmarkDeviceIdOID); |
749b1e90 MS |
979 | _cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1, |
980 | packet.community, CUPS_ASN1_GET_REQUEST, | |
981 | DEVICE_PRODUCT, XeroxProductOID); | |
982 | break; | |
983 | ||
984 | case DEVICE_DESCRIPTION : | |
985 | if (device && packet.object_type == CUPS_ASN1_OCTET_STRING) | |
986 | { | |
987 | /* | |
988 | * Update an existing cache entry... | |
989 | */ | |
990 | ||
991 | char make_model[256]; /* Make and model */ | |
992 | ||
993 | ||
d1c13e16 MS |
994 | if (strchr((char *)packet.object_value.string.bytes, ':') && |
995 | strchr((char *)packet.object_value.string.bytes, ';')) | |
749b1e90 MS |
996 | { |
997 | /* | |
998 | * Description is the IEEE-1284 device ID... | |
999 | */ | |
89d46774 | 1000 | |
3dd9c340 MS |
1001 | char *ptr; /* Pointer into device ID */ |
1002 | ||
1003 | for (ptr = (char *)packet.object_value.string.bytes; *ptr; ptr ++) | |
1004 | if (*ptr == '\n') | |
1005 | *ptr = ';'; /* A lot of bad printers put a newline */ | |
749b1e90 | 1006 | if (!device->id) |
d1c13e16 | 1007 | device->id = strdup((char *)packet.object_value.string.bytes); |
89d46774 | 1008 | |
d1c13e16 MS |
1009 | backendGetMakeModel((char *)packet.object_value.string.bytes, |
1010 | make_model, sizeof(make_model)); | |
89d46774 | 1011 | |
749b1e90 MS |
1012 | if (device->info) |
1013 | free(device->info); | |
89d46774 | 1014 | |
749b1e90 MS |
1015 | device->info = strdup(make_model); |
1016 | } | |
1017 | else | |
1018 | { | |
1019 | /* | |
1020 | * Description is plain text... | |
1021 | */ | |
89d46774 | 1022 | |
d1c13e16 | 1023 | fix_make_model(make_model, (char *)packet.object_value.string.bytes, |
749b1e90 | 1024 | sizeof(make_model)); |
89d46774 | 1025 | |
749b1e90 MS |
1026 | if (device->info) |
1027 | free(device->info); | |
89d46774 | 1028 | |
d1c13e16 | 1029 | device->info = strdup((char *)packet.object_value.string.bytes); |
749b1e90 | 1030 | } |
89d46774 | 1031 | |
749b1e90 MS |
1032 | if (!device->make_and_model) |
1033 | device->make_and_model = strdup(make_model); | |
1034 | } | |
1035 | break; | |
89d46774 | 1036 | |
749b1e90 | 1037 | case DEVICE_ID : |
ef55b745 MS |
1038 | if (device && packet.object_type == CUPS_ASN1_OCTET_STRING && |
1039 | (!device->id || | |
1040 | strlen(device->id) < packet.object_value.string.num_bytes)) | |
749b1e90 MS |
1041 | { |
1042 | /* | |
1043 | * Update an existing cache entry... | |
1044 | */ | |
7a14d768 | 1045 | |
749b1e90 | 1046 | char make_model[256]; /* Make and model */ |
3dd9c340 | 1047 | char *ptr; /* Pointer into device ID */ |
89d46774 | 1048 | |
3dd9c340 MS |
1049 | for (ptr = (char *)packet.object_value.string.bytes; *ptr; ptr ++) |
1050 | if (*ptr == '\n') | |
1051 | *ptr = ';'; /* A lot of bad printers put a newline */ | |
749b1e90 MS |
1052 | if (device->id) |
1053 | free(device->id); | |
89d46774 | 1054 | |
d1c13e16 | 1055 | device->id = strdup((char *)packet.object_value.string.bytes); |
7a14d768 | 1056 | |
749b1e90 MS |
1057 | /* |
1058 | * Convert the ID to a make and model string... | |
1059 | */ | |
7a14d768 | 1060 | |
d1c13e16 MS |
1061 | backendGetMakeModel((char *)packet.object_value.string.bytes, |
1062 | make_model, sizeof(make_model)); | |
749b1e90 MS |
1063 | if (device->make_and_model) |
1064 | free(device->make_and_model); | |
7a14d768 | 1065 | |
749b1e90 MS |
1066 | device->make_and_model = strdup(make_model); |
1067 | } | |
1068 | break; | |
7a14d768 | 1069 | |
749b1e90 MS |
1070 | case DEVICE_LOCATION : |
1071 | if (device && packet.object_type == CUPS_ASN1_OCTET_STRING && | |
1072 | !device->location) | |
d1c13e16 | 1073 | device->location = strdup((char *)packet.object_value.string.bytes); |
749b1e90 | 1074 | break; |
7a14d768 | 1075 | |
749b1e90 MS |
1076 | case DEVICE_PRODUCT : |
1077 | if (device && packet.object_type == CUPS_ASN1_OCTET_STRING && | |
1078 | !device->id) | |
1079 | { | |
1080 | /* | |
1081 | * Update an existing cache entry... | |
1082 | */ | |
7a14d768 | 1083 | |
749b1e90 | 1084 | if (!device->info) |
d1c13e16 | 1085 | device->info = strdup((char *)packet.object_value.string.bytes); |
7a14d768 | 1086 | |
749b1e90 MS |
1087 | if (device->make_and_model) |
1088 | free(device->make_and_model); | |
7a14d768 | 1089 | |
d1c13e16 | 1090 | device->make_and_model = strdup((char *)packet.object_value.string.bytes); |
749b1e90 MS |
1091 | } |
1092 | break; | |
7a14d768 | 1093 | |
749b1e90 MS |
1094 | case DEVICE_URI : |
1095 | if (device && packet.object_type == CUPS_ASN1_OCTET_STRING && | |
12f89d24 | 1096 | !device->uri && packet.object_value.string.num_bytes > 3) |
749b1e90 MS |
1097 | { |
1098 | /* | |
1099 | * Update an existing cache entry... | |
1100 | */ | |
7a14d768 | 1101 | |
12f89d24 MS |
1102 | char scheme[32], /* URI scheme */ |
1103 | userpass[256], /* Username:password in URI */ | |
1104 | hostname[256], /* Hostname in URI */ | |
1105 | resource[1024]; /* Resource path in URI */ | |
1106 | int port; /* Port number in URI */ | |
1107 | ||
d1c13e16 | 1108 | if (!strncmp((char *)packet.object_value.string.bytes, "lpr:", 4)) |
749b1e90 MS |
1109 | { |
1110 | /* | |
1111 | * We want "lpd://..." for the URI... | |
1112 | */ | |
7a14d768 | 1113 | |
d1c13e16 | 1114 | packet.object_value.string.bytes[2] = 'd'; |
749b1e90 | 1115 | } |
7a14d768 | 1116 | |
12f89d24 MS |
1117 | if (httpSeparateURI(HTTP_URI_CODING_ALL, |
1118 | (char *)packet.object_value.string.bytes, | |
1119 | scheme, sizeof(scheme), | |
1120 | userpass, sizeof(userpass), | |
1121 | hostname, sizeof(hostname), &port, | |
1122 | resource, sizeof(resource)) >= HTTP_URI_OK) | |
1123 | device->uri = strdup((char *)packet.object_value.string.bytes); | |
749b1e90 MS |
1124 | } |
1125 | break; | |
89d46774 | 1126 | } |
1127 | } | |
1128 | ||
1129 | ||
1130 | /* | |
1131 | * 'run_time()' - Return the total running time... | |
1132 | */ | |
1133 | ||
1134 | static double /* O - Number of seconds */ | |
1135 | run_time(void) | |
1136 | { | |
1137 | struct timeval curtime; /* Current time */ | |
1138 | ||
1139 | ||
1140 | gettimeofday(&curtime, NULL); | |
1141 | ||
1142 | return (curtime.tv_sec - StartTime.tv_sec + | |
1143 | 0.000001 * (curtime.tv_usec - StartTime.tv_usec)); | |
1144 | } | |
1145 | ||
1146 | ||
1147 | /* | |
1148 | * 'scan_devices()' - Scan for devices using SNMP. | |
1149 | */ | |
1150 | ||
1151 | static void | |
22c9029b MS |
1152 | scan_devices(int ipv4, /* I - SNMP IPv4 socket */ |
1153 | int ipv6) /* I - SNMP IPv6 socket */ | |
89d46774 | 1154 | { |
22c9029b MS |
1155 | int fd, /* File descriptor for this address */ |
1156 | busy; /* Are we busy processing something? */ | |
89d46774 | 1157 | char *address, /* Current address */ |
1158 | *community; /* Current community */ | |
1159 | fd_set input; /* Input set for select() */ | |
1160 | struct timeval timeout; /* Timeout for select() */ | |
1161 | time_t endtime; /* End time for scan */ | |
1162 | http_addrlist_t *addrs, /* List of addresses */ | |
1163 | *addr; /* Current address */ | |
1164 | snmp_cache_t *device; /* Current device */ | |
22c9029b | 1165 | char temp[1024]; /* Temporary address string */ |
89d46774 | 1166 | |
1167 | ||
89d46774 | 1168 | gettimeofday(&StartTime, NULL); |
1169 | ||
89d46774 | 1170 | /* |
1171 | * First send all of the broadcast queries... | |
1172 | */ | |
1173 | ||
1174 | for (address = (char *)cupsArrayFirst(Addresses); | |
1175 | address; | |
1176 | address = (char *)cupsArrayNext(Addresses)) | |
1177 | { | |
1178 | if (!strcmp(address, "@LOCAL")) | |
1179 | addrs = get_interface_addresses(NULL); | |
1180 | else if (!strncmp(address, "@IF(", 4)) | |
1181 | { | |
1182 | char ifname[255]; /* Interface name */ | |
1183 | ||
89d46774 | 1184 | strlcpy(ifname, address + 4, sizeof(ifname)); |
1185 | if (ifname[0]) | |
1186 | ifname[strlen(ifname) - 1] = '\0'; | |
1187 | ||
1188 | addrs = get_interface_addresses(ifname); | |
1189 | } | |
1190 | else | |
22c9029b | 1191 | addrs = httpAddrGetList(address, AF_UNSPEC, NULL); |
89d46774 | 1192 | |
1193 | if (!addrs) | |
1194 | { | |
1195 | fprintf(stderr, "ERROR: Unable to scan \"%s\"!\n", address); | |
1196 | continue; | |
1197 | } | |
1198 | ||
1199 | for (community = (char *)cupsArrayFirst(Communities); | |
1200 | community; | |
1201 | community = (char *)cupsArrayNext(Communities)) | |
1202 | { | |
1203 | debug_printf("DEBUG: Scanning for devices in \"%s\" via \"%s\"...\n", | |
1204 | community, address); | |
1205 | ||
1206 | for (addr = addrs; addr; addr = addr->next) | |
22c9029b MS |
1207 | { |
1208 | #ifdef AF_INET6 | |
5ec1fd3d | 1209 | if (httpAddrFamily(&(addr->addr)) == AF_INET6) |
22c9029b MS |
1210 | fd = ipv6; |
1211 | else | |
1212 | #endif /* AF_INET6 */ | |
1213 | fd = ipv4; | |
1214 | ||
1215 | debug_printf("DEBUG: Sending get request to %s...\n", | |
1216 | httpAddrString(&(addr->addr), temp, sizeof(temp))); | |
1217 | ||
7a14d768 | 1218 | _cupsSNMPWrite(fd, &(addr->addr), CUPS_SNMP_VERSION_1, community, |
749b1e90 | 1219 | CUPS_ASN1_GET_REQUEST, DEVICE_TYPE, DeviceTypeOID); |
22c9029b | 1220 | } |
89d46774 | 1221 | } |
1222 | ||
1223 | httpAddrFreeList(addrs); | |
1224 | } | |
1225 | ||
1226 | /* | |
1227 | * Then read any responses that come in over the next 3 seconds... | |
1228 | */ | |
1229 | ||
ae71f5de | 1230 | endtime = time(NULL) + MaxRunTime; |
89d46774 | 1231 | |
1232 | FD_ZERO(&input); | |
1233 | ||
1234 | while (time(NULL) < endtime) | |
1235 | { | |
ae71f5de | 1236 | timeout.tv_sec = 2; |
89d46774 | 1237 | timeout.tv_usec = 0; |
1238 | ||
22c9029b MS |
1239 | FD_SET(ipv4, &input); |
1240 | if (ipv6 >= 0) | |
1241 | FD_SET(ipv6, &input); | |
1242 | ||
1243 | fd = ipv4 > ipv6 ? ipv4 : ipv6; | |
89d46774 | 1244 | if (select(fd + 1, &input, NULL, NULL, &timeout) < 0) |
1245 | { | |
22c9029b MS |
1246 | fprintf(stderr, "ERROR: %.3f select() for %d/%d failed: %s\n", run_time(), |
1247 | ipv4, ipv6, strerror(errno)); | |
89d46774 | 1248 | break; |
1249 | } | |
1250 | ||
22c9029b MS |
1251 | busy = 0; |
1252 | ||
1253 | if (FD_ISSET(ipv4, &input)) | |
1254 | { | |
1255 | read_snmp_response(ipv4); | |
1256 | busy = 1; | |
1257 | } | |
1258 | ||
1259 | if (ipv6 >= 0 && FD_ISSET(ipv6, &input)) | |
1260 | { | |
1261 | read_snmp_response(ipv6); | |
1262 | busy = 1; | |
1263 | } | |
1264 | ||
1265 | if (!busy) | |
749b1e90 MS |
1266 | { |
1267 | /* | |
1268 | * List devices with complete information... | |
1269 | */ | |
89d46774 | 1270 | |
749b1e90 | 1271 | int sent_something = 0; |
89d46774 | 1272 | |
749b1e90 MS |
1273 | for (device = (snmp_cache_t *)cupsArrayFirst(Devices); |
1274 | device; | |
1275 | device = (snmp_cache_t *)cupsArrayNext(Devices)) | |
1276 | if (!device->sent && device->info && device->make_and_model) | |
1277 | { | |
1278 | if (device->uri) | |
1279 | list_device(device); | |
1280 | else | |
1281 | probe_device(device); | |
1282 | ||
1283 | device->sent = sent_something = 1; | |
1284 | } | |
1285 | ||
1286 | if (!sent_something) | |
1287 | break; | |
1288 | } | |
1289 | } | |
89d46774 | 1290 | |
1291 | debug_printf("DEBUG: %.3f Scan complete!\n", run_time()); | |
1292 | } | |
1293 | ||
1294 | ||
89d46774 | 1295 | /* |
1296 | * 'try_connect()' - Try connecting on a port... | |
1297 | */ | |
1298 | ||
1299 | static int /* O - 0 on success or -1 on error */ | |
1300 | try_connect(http_addr_t *addr, /* I - Socket address */ | |
1301 | const char *addrname, /* I - Hostname or IP address */ | |
1302 | int port) /* I - Port number */ | |
1303 | { | |
1304 | int fd; /* Socket */ | |
1305 | int status; /* Connection status */ | |
1306 | ||
1307 | ||
1308 | debug_printf("DEBUG: %.3f Trying %s://%s:%d...\n", run_time(), | |
1309 | port == 515 ? "lpd" : "socket", addrname, port); | |
1310 | ||
5ec1fd3d | 1311 | if ((fd = socket(httpAddrFamily(addr), SOCK_STREAM, 0)) < 0) |
89d46774 | 1312 | { |
c0e1af83 | 1313 | fprintf(stderr, "ERROR: Unable to create socket: %s\n", |
1314 | strerror(errno)); | |
89d46774 | 1315 | return (-1); |
1316 | } | |
1317 | ||
22c9029b | 1318 | _httpAddrSetPort(addr, port); |
89d46774 | 1319 | |
89d46774 | 1320 | alarm(1); |
1321 | ||
7e86f2f6 | 1322 | status = connect(fd, (void *)addr, (socklen_t)httpAddrLength(addr)); |
89d46774 | 1323 | |
1324 | close(fd); | |
1325 | alarm(0); | |
1326 | ||
1327 | return (status); | |
1328 | } | |
1329 | ||
1330 | ||
1331 | /* | |
1332 | * 'update_cache()' - Update a cached device... | |
1333 | */ | |
1334 | ||
1335 | static void | |
1336 | update_cache(snmp_cache_t *device, /* I - Device */ | |
1337 | const char *uri, /* I - Device URI */ | |
1338 | const char *id, /* I - Device ID */ | |
1339 | const char *make_model) /* I - Device make and model */ | |
1340 | { | |
1341 | if (device->uri) | |
1342 | free(device->uri); | |
1343 | ||
1344 | device->uri = strdup(uri); | |
1345 | ||
1346 | if (id) | |
1347 | { | |
1348 | if (device->id) | |
1349 | free(device->id); | |
1350 | ||
1351 | device->id = strdup(id); | |
1352 | } | |
1353 | ||
1354 | if (make_model) | |
1355 | { | |
1356 | if (device->make_and_model) | |
1357 | free(device->make_and_model); | |
1358 | ||
1359 | device->make_and_model = strdup(make_model); | |
1360 | } | |
d09495fa | 1361 | |
1362 | list_device(device); | |
89d46774 | 1363 | } |
1364 | ||
1365 | ||
1366 | /* | |
f2d18633 | 1367 | * End of "$Id$". |
89d46774 | 1368 | */ |