#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <netdb.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <sys/socket.h>
#include "asterisk.h"
#include "asterisk/config.h"
#include "asterisk/logger.h"
#include "asterisk/cli.h"
#include "asterisk/lock.h"
#include "asterisk/frame.h"
#include "asterisk/options.h"
#include "asterisk/md5.h"
#include "asterisk/astdb.h"
#include "asterisk/utils.h"
#include "iax2.h"
#include "iax2-provision.h"
#include "iax2-parser.h"
Include dependency graph for iax2-provision.c:
Go to the source code of this file.
Defines | |
| #define | IPTOS_MINCOST 0x02 |
Functions | |
| AST_MUTEX_DEFINE_STATIC (provlock) | |
| static int | iax_process_template (struct ast_config *cfg, char *s, char *def) |
| char * | iax_prov_complete_template (char *line, char *word, int pos, int state) |
| char * | iax_provflags2str (char *buf, int buflen, unsigned int flags) |
| int | iax_provision_build (struct iax_ie_data *provdata, unsigned int *signature, const char *template, int force) |
| static int | iax_provision_init (void) |
| int | iax_provision_reload (void) |
| int | iax_provision_unload (void) |
| int | iax_provision_version (unsigned int *version, const char *template, int force) |
| static const char * | iax_server (char *a, int alen, unsigned int addr) |
| static int | iax_show_provisioning (int fd, int argc, char *argv[]) |
| static unsigned int | iax_str2flags (const char *buf) |
| static struct iax_template * | iax_template_find (const char *s, int allowdead) |
| static int | iax_template_parse (struct iax_template *cur, struct ast_config *cfg, char *s, char *def) |
| static const char * | ifthere (const char *s) |
| static unsigned int | prov_ver_calc (struct iax_ie_data *provdata) |
Variables | |
| static struct ast_cli_entry | cli_show_provisioning |
| static struct iax_flag | iax_flags [] |
| static int | provinit = 0 |
| static char | show_provisioning_usage [] |
| iax_template * | templates |
Definition in file iax2-provision.c.
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Definition at line 52 of file iax2-provision.c. |
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Definition at line 374 of file iax2-provision.c. References ast_log(), ast_mutex_lock(), ast_mutex_unlock(), iax_template::dead, iax_template_parse(), LOG_WARNING, malloc, iax_template::name, iax_template::next, and templates. Referenced by iax_provision_reload(). 00375 {
00376 /* Find an already existing one if there */
00377 struct iax_template *cur;
00378 int mallocd = 0;
00379 cur = templates;
00380 while(cur) {
00381 if (!strcasecmp(cur->name, s))
00382 break;
00383 cur = cur->next;
00384 }
00385 if (!cur) {
00386 mallocd = 1;
00387 cur = malloc(sizeof(struct iax_template));
00388 if (!cur) {
00389 ast_log(LOG_WARNING, "Out of memory!\n");
00390 return -1;
00391 }
00392 /* Initialize entry */
00393 memset(cur, 0, sizeof(*cur));
00394 strncpy(cur->name, s, sizeof(cur->name) - 1);
00395 cur->dead = 1;
00396 }
00397 if (!iax_template_parse(cur, cfg, s, def))
00398 cur->dead = 0;
00399
00400 /* Link if we're mallocd */
00401 if (mallocd) {
00402 ast_mutex_lock(&provlock);
00403 cur->next = templates;
00404 templates = cur;
00405 ast_mutex_unlock(&provlock);
00406 }
00407 return 0;
00408 }
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Definition at line 155 of file iax2-provision.c. References ast_mutex_lock(), ast_mutex_unlock(), iax_template::name, state::name, iax_template::next, strdup, and templates. Referenced by iax2_prov_complete_template_3rd(). 00156 {
00157 struct iax_template *c;
00158 int which=0;
00159 char *ret;
00160 ast_mutex_lock(&provlock);
00161 c = templates;
00162 while(c) {
00163 if (!strncasecmp(word, c->name, strlen(word))) {
00164 if (++which > state)
00165 break;
00166 }
00167 c = c->next;
00168 }
00169 if (c) {
00170 ret = strdup(c->name);
00171 } else
00172 ret = NULL;
00173 ast_mutex_unlock(&provlock);
00174 return ret;
00175 }
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Definition at line 88 of file iax2-provision.c. References iax_flags, and name. Referenced by dump_prov_flags(), and iax_show_provisioning(). 00089 {
00090 int x;
00091 if (!buf || buflen < 1) {
00092 return(NULL);
00093 }
00094 buf[0] = '\0';
00095 for (x=0;x<sizeof(iax_flags) / sizeof(iax_flags[0]); x++) {
00096 if (flags & iax_flags[x].value){
00097 strncat(buf, iax_flags[x].name, buflen - strlen(buf) - 1);
00098 strncat(buf, ",", buflen - strlen(buf) - 1);
00099 }
00100 }
00101 if (strlen(buf))
00102 buf[strlen(buf) - 1] = '\0';
00103 else
00104 strncpy(buf, "none", buflen - 1);
00105 return buf;
00106 }
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Definition at line 187 of file iax2-provision.c. References iax_template::altserver, ast_db_put(), ast_mutex_lock(), ast_mutex_unlock(), iax_template::flags, iax_template::format, iax_ie_append_byte(), iax_ie_append_int(), iax_ie_append_short(), iax_ie_append_str(), iax_template_find(), iax_template::lang, iax_template::pass, iax_template::port, PROV_IE_ALTSERVER, PROV_IE_FLAGS, PROV_IE_FORMAT, PROV_IE_LANG, PROV_IE_PASS, PROV_IE_PORTNO, PROV_IE_PROVVER, PROV_IE_SERVERIP, PROV_IE_SERVERPORT, PROV_IE_TOS, PROV_IE_USER, prov_ver_calc(), iax_template::server, iax_template::serverport, iax_template::tos, and iax_template::user. Referenced by iax2_provision(), and iax_provision_version(). 00188 {
00189 struct iax_template *cur;
00190 unsigned int sig;
00191 char tmp[40];
00192 memset(provdata, 0, sizeof(*provdata));
00193 ast_mutex_lock(&provlock);
00194 cur = iax_template_find(template, 1);
00195 /* If no match, try searching for '*' */
00196 if (!cur)
00197 cur = iax_template_find("*", 1);
00198 if (cur) {
00199 /* found it -- add information elements as appropriate */
00200 if (force || strlen(cur->user))
00201 iax_ie_append_str(provdata, PROV_IE_USER, cur->user);
00202 if (force || strlen(cur->pass))
00203 iax_ie_append_str(provdata, PROV_IE_PASS, cur->pass);
00204 if (force || strlen(cur->lang))
00205 iax_ie_append_str(provdata, PROV_IE_LANG, cur->lang);
00206 if (force || cur->port)
00207 iax_ie_append_short(provdata, PROV_IE_PORTNO, cur->port);
00208 if (force || cur->server)
00209 iax_ie_append_int(provdata, PROV_IE_SERVERIP, cur->server);
00210 if (force || cur->serverport)
00211 iax_ie_append_short(provdata, PROV_IE_SERVERPORT, cur->serverport);
00212 if (force || cur->altserver)
00213 iax_ie_append_int(provdata, PROV_IE_ALTSERVER, cur->altserver);
00214 if (force || cur->flags)
00215 iax_ie_append_int(provdata, PROV_IE_FLAGS, cur->flags);
00216 if (force || cur->format)
00217 iax_ie_append_int(provdata, PROV_IE_FORMAT, cur->format);
00218 if (force || cur->tos)
00219 iax_ie_append_byte(provdata, PROV_IE_TOS, cur->tos);
00220
00221 /* Calculate checksum of message so far */
00222 sig = prov_ver_calc(provdata);
00223 if (signature)
00224 *signature = sig;
00225 /* Store signature */
00226 iax_ie_append_int(provdata, PROV_IE_PROVVER, sig);
00227 /* Cache signature for later verification so we need not recalculate all this */
00228 snprintf(tmp, sizeof(tmp), "v0x%08x", sig);
00229 ast_db_put("iax/provisioning/cache", template, tmp);
00230 } else
00231 ast_db_put("iax/provisioning/cache", template, "u");
00232 ast_mutex_unlock(&provlock);
00233 return cur ? 0 : -1;
00234 }
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Definition at line 472 of file iax2-provision.c. References ast_cli_register(), and provinit. Referenced by iax_provision_reload(). 00473 {
00474 ast_cli_register(&cli_show_provisioning);
00475 provinit = 1;
00476 return 0;
00477 }
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Definition at line 486 of file iax2-provision.c. References ast_category_browse(), ast_config_destroy(), ast_config_load(), ast_db_deltree(), ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_verbose(), cfg, iax_template::dead, free, iax_process_template(), iax_provision_init(), LOG_NOTICE, iax_template::next, option_verbose, provinit, templates, and VERBOSE_PREFIX_3. Referenced by load_module(). 00487 {
00488 struct ast_config *cfg;
00489 struct iax_template *cur, *prev, *next;
00490 char *cat;
00491 int found = 0;
00492 if (!provinit)
00493 iax_provision_init();
00494 /* Mark all as dead. No need for locking */
00495 cur = templates;
00496 while(cur) {
00497 cur->dead = 1;
00498 cur = cur->next;
00499 }
00500 cfg = ast_config_load("iaxprov.conf");
00501 if (cfg) {
00502 /* Load as appropriate */
00503 cat = ast_category_browse(cfg, NULL);
00504 while(cat) {
00505 if (strcasecmp(cat, "general")) {
00506 iax_process_template(cfg, cat, found ? "default" : NULL);
00507 found++;
00508 if (option_verbose > 2)
00509 ast_verbose(VERBOSE_PREFIX_3 "Loaded provisioning template '%s'\n", cat);
00510 }
00511 cat = ast_category_browse(cfg, cat);
00512 }
00513 ast_config_destroy(cfg);
00514 } else
00515 ast_log(LOG_NOTICE, "No IAX provisioning configuration found, IAX provisioning disabled.\n");
00516 ast_mutex_lock(&provlock);
00517 /* Drop dead entries while locked */
00518 prev = NULL;
00519 cur = templates;
00520 while(cur) {
00521 next = cur->next;
00522 if (cur->dead) {
00523 if (prev)
00524 prev->next = next;
00525 else
00526 templates = next;
00527 free(cur);
00528 } else
00529 prev = cur;
00530 cur = next;
00531 }
00532 ast_mutex_unlock(&provlock);
00533 /* Purge cached signature DB entries */
00534 ast_db_deltree("iax/provisioning/cache", NULL);
00535 return 0;
00536
00537 }
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Definition at line 479 of file iax2-provision.c. References ast_cli_unregister(), and provinit. Referenced by __unload_module(). 00480 {
00481 provinit = 0;
00482 ast_cli_unregister(&cli_show_provisioning);
00483 return 0;
00484 }
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Definition at line 236 of file iax2-provision.c. References ast_db_get(), ast_log(), ast_mutex_lock(), ast_mutex_unlock(), iax_provision_build(), LOG_DEBUG, and option_debug. Referenced by check_provisioning(). 00237 {
00238 char tmp[80] = "";
00239 struct iax_ie_data ied;
00240 int ret=0;
00241 memset(&ied, 0, sizeof(ied));
00242
00243 ast_mutex_lock(&provlock);
00244 ast_db_get("iax/provisioning/cache", template, tmp, sizeof(tmp));
00245 if (sscanf(tmp, "v%x", version) != 1) {
00246 if (strcmp(tmp, "u")) {
00247 ret = iax_provision_build(&ied, version, template, force);
00248 if (ret)
00249 ast_log(LOG_DEBUG, "Unable to create provisioning packet for '%s'\n", template);
00250 } else
00251 ret = -1;
00252 } else if (option_debug)
00253 ast_log(LOG_DEBUG, "Retrieved cached version '%s' = '%08x'\n", tmp, *version);
00254 ast_mutex_unlock(&provlock);
00255 return ret;
00256 }
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Definition at line 423 of file iax2-provision.c. References ast_inet_ntoa(). Referenced by iax_show_provisioning(). 00424 {
00425 struct in_addr ia;
00426 if (!addr)
00427 return "<unspecified>";
00428 ia.s_addr = htonl(addr);
00429 return ast_inet_ntoa(a, alen, ia);
00430 }
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Definition at line 433 of file iax2-provision.c. References iax_template::altserver, ast_cli(), ast_getformatname(), ast_mutex_lock(), ast_mutex_unlock(), iax_template::flags, iax_template::format, iax_provflags2str(), iax_server(), ifthere(), iax_template::lang, iax_template::name, iax_template::next, iax_template::pass, iax_template::port, RESULT_SHOWUSAGE, RESULT_SUCCESS, iax_template::server, iax_template::serverport, iax_template::src, templates, iax_template::tos, and iax_template::user. 00434 {
00435 struct iax_template *cur;
00436 char iabuf[80]; /* Has to be big enough for 'flags' too */
00437 int found = 0;
00438 if ((argc != 3) && (argc != 4))
00439 return RESULT_SHOWUSAGE;
00440 ast_mutex_lock(&provlock);
00441 for (cur = templates;cur;cur = cur->next) {
00442 if ((argc == 3) || (!strcasecmp(argv[3], cur->name))) {
00443 if (found) ast_cli(fd, "\n");
00444 ast_cli(fd, "== %s ==\n", cur->name);
00445 ast_cli(fd, "Base Templ: %s\n", strlen(cur->src) ? cur->src : "<none>");
00446 ast_cli(fd, "Username: %s\n", ifthere(cur->user));
00447 ast_cli(fd, "Secret: %s\n", ifthere(cur->pass));
00448 ast_cli(fd, "Language: %s\n", ifthere(cur->lang));
00449 ast_cli(fd, "Bind Port: %d\n", cur->port);
00450 ast_cli(fd, "Server: %s\n", iax_server(iabuf, sizeof(iabuf), cur->server));
00451 ast_cli(fd, "Server Port: %d\n", cur->serverport);
00452 ast_cli(fd, "Alternate: %s\n", iax_server(iabuf, sizeof(iabuf), cur->altserver));
00453 ast_cli(fd, "Flags: %s\n", iax_provflags2str(iabuf, sizeof(iabuf), cur->flags));
00454 ast_cli(fd, "Format: %s\n", ast_getformatname(cur->format));
00455 ast_cli(fd, "TOS: %d\n", cur->tos);
00456 found++;
00457 }
00458 }
00459 ast_mutex_unlock(&provlock);
00460 if (!found) {
00461 if (argc == 3)
00462 ast_cli(fd, "No provisioning templates found\n");
00463 else
00464 ast_cli(fd, "No provisioning template matching '%s' found\n", argv[3]);
00465 }
00466 return RESULT_SUCCESS;
00467 }
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Definition at line 108 of file iax2-provision.c. References iax_flags, and name. Referenced by iax_template_parse(). 00109 {
00110 int x;
00111 int len;
00112 int found;
00113 unsigned int flags = 0;
00114 char *e;
00115 while(buf && *buf) {
00116 e = strchr(buf, ',');
00117 if (e)
00118 len = e - buf;
00119 else
00120 len = 0;
00121 found = 0;
00122 for (x=0;x<sizeof(iax_flags) / sizeof(iax_flags[0]); x++) {
00123 if ((len && !strncasecmp(iax_flags[x].name, buf, len)) ||
00124 (!len && !strcasecmp(iax_flags[x].name, buf))) {
00125 flags |= iax_flags[x].value;
00126 break;
00127 }
00128 }
00129 if (e) {
00130 buf = e + 1;
00131 while(*buf && (*buf < 33))
00132 buf++;
00133 } else
00134 break;
00135 }
00136 return flags;
00137 }
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Definition at line 140 of file iax2-provision.c. References iax_template::dead, iax_template::name, iax_template::next, and templates. Referenced by iax_provision_build(), and iax_template_parse(). 00141 {
00142 struct iax_template *cur;
00143 cur = templates;
00144 while(cur) {
00145 if (!strcasecmp(s, cur->name)) {
00146 if (!allowdead && cur->dead)
00147 cur = NULL;
00148 break;
00149 }
00150 cur = cur->next;
00151 }
00152 return cur;
00153 }
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Definition at line 258 of file iax2-provision.c. References iax_template::altserver, ast_getformatbyname(), ast_gethostbyname(), ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_variable_browse(), ast_variable_retrieve(), iax_template::dead, iax_template::flags, iax_template::format, hp, IAX_DEFAULT_PORTNO, iax_str2flags(), iax_template_find(), IPTOS_MINCOST, iax_template::lang, ast_variable::lineno, LOG_WARNING, ast_variable::name, iax_template::name, ast_variable::next, iax_template::next, iax_template::pass, iax_template::port, iax_template::server, iax_template::serverport, iax_template::src, t, iax_template::tos, iax_template::user, and ast_variable::value. Referenced by iax_process_template(). 00259 {
00260 struct ast_variable *v;
00261 int foundportno = 0;
00262 int foundserverportno = 0;
00263 int x;
00264 struct in_addr ia;
00265 struct hostent *hp;
00266 struct ast_hostent h;
00267 struct iax_template *src, tmp;
00268 char *t;
00269 if (def) {
00270 t = ast_variable_retrieve(cfg, s ,"template");
00271 src = NULL;
00272 if (t && strlen(t)) {
00273 src = iax_template_find(t, 0);
00274 if (!src)
00275 ast_log(LOG_WARNING, "Unable to find base template '%s' for creating '%s'. Trying '%s'\n", t, s, def);
00276 else
00277 def = t;
00278 }
00279 if (!src) {
00280 src = iax_template_find(def, 0);
00281 if (!src)
00282 ast_log(LOG_WARNING, "Unable to locate default base template '%s' for creating '%s', omitting.", def, s);
00283 }
00284 if (!src)
00285 return -1;
00286 ast_mutex_lock(&provlock);
00287 /* Backup old data */
00288 memcpy(&tmp, cur, sizeof(tmp));
00289 /* Restore from src */
00290 memcpy(cur, src, sizeof(tmp));
00291 /* Restore important headers */
00292 memcpy(cur->name, tmp.name, sizeof(cur->name));
00293 cur->dead = tmp.dead;
00294 cur->next = tmp.next;
00295 ast_mutex_unlock(&provlock);
00296 }
00297 if (def)
00298 strncpy(cur->src, def, sizeof(cur->src) - 1);
00299 else
00300 cur->src[0] = '\0';
00301 v = ast_variable_browse(cfg, s);
00302 while(v) {
00303 if (!strcasecmp(v->name, "port") || !strcasecmp(v->name, "serverport")) {
00304 if ((sscanf(v->value, "%d", &x) == 1) && (x > 0) && (x < 65535)) {
00305 if (!strcasecmp(v->name, "port")) {
00306 cur->port = x;
00307 foundportno = 1;
00308 } else {
00309 cur->serverport = x;
00310 foundserverportno = 1;
00311 }
00312 } else
00313 ast_log(LOG_WARNING, "Ignoring invalid %s '%s' for '%s' at line %d\n", v->name, v->value, s, v->lineno);
00314 } else if (!strcasecmp(v->name, "server") || !strcasecmp(v->name, "altserver")) {
00315 hp = ast_gethostbyname(v->value, &h);
00316 if (hp) {
00317 memcpy(&ia, hp->h_addr, sizeof(ia));
00318 if (!strcasecmp(v->name, "server"))
00319 cur->server = ntohl(ia.s_addr);
00320 else
00321 cur->altserver = ntohl(ia.s_addr);
00322 } else
00323 ast_log(LOG_WARNING, "Ignoring invalid %s '%s' for '%s' at line %d\n", v->name, v->value, s, v->lineno);
00324 } else if (!strcasecmp(v->name, "codec")) {
00325 if ((x = ast_getformatbyname(v->value)) > 0) {
00326 cur->format = x;
00327 } else
00328 ast_log(LOG_WARNING, "Ignoring invalid codec '%s' for '%s' at line %d\n", v->value, s, v->lineno);
00329 } else if (!strcasecmp(v->name, "tos")) {
00330 if (sscanf(v->value, "%d", &x) == 1)
00331 cur->tos = x & 0xff;
00332 else if (!strcasecmp(v->value, "lowdelay"))
00333 cur->tos = IPTOS_LOWDELAY;
00334 else if (!strcasecmp(v->value, "throughput"))
00335 cur->tos = IPTOS_THROUGHPUT;
00336 else if (!strcasecmp(v->value, "reliability"))
00337 cur->tos = IPTOS_RELIABILITY;
00338 else if (!strcasecmp(v->value, "mincost"))
00339 cur->tos = IPTOS_MINCOST;
00340 else if (!strcasecmp(v->value, "none"))
00341 cur->tos = 0;
00342 else
00343 ast_log(LOG_WARNING, "Invalid tos value at line %d, should be 'lowdelay', 'throughput', 'reliability', 'mincost', or 'none'\n", v->lineno);
00344 } else if (!strcasecmp(v->name, "user")) {
00345 strncpy(cur->user, v->value, sizeof(cur->user) - 1);
00346 if (strcmp(cur->user, v->value))
00347 ast_log(LOG_WARNING, "Truncating username from '%s' to '%s' for '%s' at line %d\n", v->value, cur->user, s, v->lineno);
00348 } else if (!strcasecmp(v->name, "pass")) {
00349 strncpy(cur->pass, v->value, sizeof(cur->pass) - 1);
00350 if (strcmp(cur->pass, v->value))
00351 ast_log(LOG_WARNING, "Truncating password from '%s' to '%s' for '%s' at line %d\n", v->value, cur->pass, s, v->lineno);
00352 } else if (!strcasecmp(v->name, "language")) {
00353 strncpy(cur->lang, v->value, sizeof(cur->lang) - 1);
00354 if (strcmp(cur->lang, v->value))
00355 ast_log(LOG_WARNING, "Truncating language from '%s' to '%s' for '%s' at line %d\n", v->value, cur->lang, s, v->lineno);
00356 } else if (!strcasecmp(v->name, "flags")) {
00357 cur->flags = iax_str2flags(v->value);
00358 } else if (!strncasecmp(v->name, "flags", 5) && strchr(v->name, '+')) {
00359 cur->flags |= iax_str2flags(v->value);
00360 } else if (!strncasecmp(v->name, "flags", 5) && strchr(v->name, '-')) {
00361 cur->flags &= ~iax_str2flags(v->value);
00362 } else if (strcasecmp(v->name, "template")) {
00363 ast_log(LOG_WARNING, "Unknown keyword '%s' in definition of '%s' at line %d\n", v->name, s, v->lineno);
00364 }
00365 v = v->next;
00366 }
00367 if (!foundportno)
00368 cur->port = IAX_DEFAULT_PORTNO;
00369 if (!foundserverportno)
00370 cur->serverport = IAX_DEFAULT_PORTNO;
00371 return 0;
00372 }
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Definition at line 415 of file iax2-provision.c. Referenced by iax_show_provisioning().
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Definition at line 177 of file iax2-provision.c. References iax_ie_data::buf, MD5Final(), MD5Init(), MD5Update(), and iax_ie_data::pos. Referenced by iax_provision_build(). 00178 {
00179 struct MD5Context md5;
00180 unsigned int tmp[4];
00181 MD5Init(&md5);
00182 MD5Update(&md5, provdata->buf, provdata->pos);
00183 MD5Final((unsigned char *)tmp, &md5);
00184 return tmp[0] ^ tmp[1] ^ tmp[2] ^ tmp[3];
00185 }
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Initial value:
{ { "iax2", "show", "provisioning", NULL }, iax_show_provisioning, "Show iax provisioning", show_provisioning_usage, iax_prov_complete_template }
Definition at line 469 of file iax2-provision.c. |
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Referenced by iax_provflags2str(), and iax_str2flags(). |
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Definition at line 55 of file iax2-provision.c. Referenced by iax_provision_init(), iax_provision_reload(), and iax_provision_unload(). |
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Initial value: "Usage: iax show provisioning [template]\n" " Lists all known IAX provisioning templates or a\n" " specific one if specified.\n" Definition at line 410 of file iax2-provision.c. |
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Referenced by iax_process_template(), iax_prov_complete_template(), iax_provision_reload(), iax_show_provisioning(), and iax_template_find(). |
1.4.2