#include <netinet/in.h>
#include "asterisk/io.h"
Go to the source code of this file.
Data Structures | |
struct | ast_ha |
Defines | |
#define | AST_SENSE_ALLOW 1 |
#define | AST_SENSE_DENY 0 |
Functions | |
ast_ha * | ast_append_ha (char *sense, const char *stuff, struct ast_ha *path) |
int | ast_apply_ha (struct ast_ha *ha, struct sockaddr_in *sin) |
void | ast_copy_ha (const struct ast_ha *from, struct ast_ha *to) |
ast_ha * | ast_duplicate_ha_list (struct ast_ha *original) |
int | ast_find_ourip (struct in_addr *ourip, struct sockaddr_in bindaddr) |
void | ast_free_ha (struct ast_ha *ha) |
int | ast_get_ip (struct sockaddr_in *sin, const char *value) |
int | ast_get_ip_or_srv (struct sockaddr_in *sin, const char *value, const char *service) |
int | ast_lookup_iface (char *iface, struct in_addr *address) |
int | ast_ouraddrfor (struct in_addr *them, struct in_addr *us) |
int | ast_str2tos (const char *value, unsigned int *tos) |
const char * | ast_tos2str (unsigned int tos) |
Definition in file acl.h.
#define AST_SENSE_ALLOW 1 |
Definition at line 35 of file acl.h.
Referenced by ast_append_ha(), ast_apply_ha(), and parse_register_contact().
#define AST_SENSE_DENY 0 |
Definition at line 298 of file acl.c.
References ast_copy_string(), ast_log(), ast_malloc, AST_SENSE_ALLOW, AST_SENSE_DENY, free, LOG_DEBUG, LOG_WARNING, ast_ha::netaddr, ast_ha::next, and option_debug.
Referenced by add_calltoken_ignore(), authenticate(), build_callno_limits(), build_device(), build_gateway(), build_peer(), and build_user().
00299 { 00300 struct ast_ha *ha; 00301 char *nm = "255.255.255.255"; 00302 char tmp[256]; 00303 struct ast_ha *prev = NULL; 00304 struct ast_ha *ret; 00305 int x, z; 00306 unsigned int y; 00307 00308 ret = path; 00309 while (path) { 00310 prev = path; 00311 path = path->next; 00312 } 00313 if ((ha = ast_malloc(sizeof(*ha)))) { 00314 ast_copy_string(tmp, stuff, sizeof(tmp)); 00315 nm = strchr(tmp, '/'); 00316 if (!nm) { 00317 nm = "255.255.255.255"; 00318 } else { 00319 *nm = '\0'; 00320 nm++; 00321 } 00322 if (!strchr(nm, '.')) { 00323 if ((sscanf(nm, "%30d", &x) == 1) && (x >= 0) && (x <= 32)) { 00324 y = 0; 00325 for (z = 0; z < x; z++) { 00326 y >>= 1; 00327 y |= 0x80000000; 00328 } 00329 ha->netmask.s_addr = htonl(y); 00330 } 00331 } else if (!inet_aton(nm, &ha->netmask)) { 00332 ast_log(LOG_WARNING, "%s is not a valid netmask\n", nm); 00333 free(ha); 00334 return ret; 00335 } 00336 if (!inet_aton(tmp, &ha->netaddr)) { 00337 ast_log(LOG_WARNING, "%s is not a valid IP\n", tmp); 00338 free(ha); 00339 return ret; 00340 } 00341 ha->netaddr.s_addr &= ha->netmask.s_addr; 00342 if (!strncasecmp(sense, "p", 1)) { 00343 ha->sense = AST_SENSE_ALLOW; 00344 } else { 00345 ha->sense = AST_SENSE_DENY; 00346 } 00347 ha->next = NULL; 00348 if (prev) { 00349 prev->next = ha; 00350 } else { 00351 ret = ha; 00352 } 00353 } 00354 if (option_debug) 00355 ast_log(LOG_DEBUG, "%s/%s appended to acl for peer\n", stuff, nm); 00356 return ret; 00357 }
int ast_apply_ha | ( | struct ast_ha * | ha, | |
struct sockaddr_in * | sin | |||
) |
Definition at line 359 of file acl.c.
References ast_copy_string(), ast_inet_ntoa(), ast_log(), AST_SENSE_ALLOW, LOG_DEBUG, ast_ha::netaddr, ast_ha::netmask, ast_ha::next, option_debug, and ast_ha::sense.
Referenced by ast_sip_ouraddrfor(), authenticate(), check_access(), check_user_full(), parse_register_contact(), register_verify(), and skinny_register().
00360 { 00361 /* Start optimistic */ 00362 int res = AST_SENSE_ALLOW; 00363 while (ha) { 00364 char iabuf[INET_ADDRSTRLEN]; 00365 char iabuf2[INET_ADDRSTRLEN]; 00366 /* DEBUG */ 00367 ast_copy_string(iabuf, ast_inet_ntoa(sin->sin_addr), sizeof(iabuf)); 00368 ast_copy_string(iabuf2, ast_inet_ntoa(ha->netaddr), sizeof(iabuf2)); 00369 if (option_debug) 00370 ast_log(LOG_DEBUG, "##### Testing %s with %s\n", iabuf, iabuf2); 00371 /* For each rule, if this address and the netmask = the net address 00372 apply the current rule */ 00373 if ((sin->sin_addr.s_addr & ha->netmask.s_addr) == ha->netaddr.s_addr) 00374 res = ha->sense; 00375 ha = ha->next; 00376 } 00377 return res; 00378 }
Definition at line 256 of file acl.c.
References ast_ha::netaddr, ast_ha::netmask, and ast_ha::sense.
Referenced by add_calltoken_ignore(), ast_duplicate_ha(), and build_callno_limits().
00257 { 00258 memcpy(&to->netaddr, &from->netaddr, sizeof(from->netaddr)); 00259 memcpy(&to->netmask, &from->netmask, sizeof(from->netmask)); 00260 to->sense = from->sense; 00261 }
Definition at line 278 of file acl.c.
References ast_duplicate_ha(), and ast_ha::next.
00279 { 00280 struct ast_ha *start = original; 00281 struct ast_ha *ret = NULL; 00282 struct ast_ha *link, *prev = NULL; 00283 00284 while (start) { 00285 link = ast_duplicate_ha(start); /* Create copy of this object */ 00286 if (prev) 00287 prev->next = link; /* Link previous to this object */ 00288 00289 if (!ret) 00290 ret = link; /* Save starting point */ 00291 00292 start = start->next; /* Go to next object */ 00293 prev = link; /* Save pointer to this object */ 00294 } 00295 return ret; /* Return start of list */ 00296 }
int ast_find_ourip | ( | struct in_addr * | ourip, | |
struct sockaddr_in | bindaddr | |||
) |
Definition at line 555 of file acl.c.
References ahp, ast_gethostbyname(), ast_log(), ast_ouraddrfor(), get_local_address(), hp, LOG_WARNING, and ourhost.
Referenced by __oh323_rtp_create(), gtalk_create_candidates(), and load_module().
00556 { 00557 char ourhost[MAXHOSTNAMELEN] = ""; 00558 struct ast_hostent ahp; 00559 struct hostent *hp; 00560 struct in_addr saddr; 00561 00562 /* just use the bind address if it is nonzero */ 00563 if (ntohl(bindaddr.sin_addr.s_addr)) { 00564 memcpy(ourip, &bindaddr.sin_addr, sizeof(*ourip)); 00565 return 0; 00566 } 00567 /* try to use our hostname */ 00568 if (gethostname(ourhost, sizeof(ourhost) - 1)) { 00569 ast_log(LOG_WARNING, "Unable to get hostname\n"); 00570 } else { 00571 hp = ast_gethostbyname(ourhost, &ahp); 00572 if (hp) { 00573 memcpy(ourip, hp->h_addr, sizeof(*ourip)); 00574 return 0; 00575 } 00576 } 00577 /* A.ROOT-SERVERS.NET. */ 00578 if (inet_aton("198.41.0.4", &saddr) && !ast_ouraddrfor(&saddr, ourip)) 00579 return 0; 00580 return get_local_address(ourip); 00581 }
void ast_free_ha | ( | struct ast_ha * | ha | ) |
Definition at line 245 of file acl.c.
References free, and ast_ha::next.
Referenced by add_calltoken_ignore(), authenticate(), build_callno_limits(), build_peer(), build_user(), destroy_gateway(), oh323_destroy_peer(), oh323_destroy_user(), peer_destructor(), reload_config(), sip_destroy_peer(), sip_destroy_user(), unload_module(), and user_destructor().
00246 { 00247 struct ast_ha *hal; 00248 while (ha) { 00249 hal = ha; 00250 ha = ha->next; 00251 free(hal); 00252 } 00253 }
int ast_get_ip | ( | struct sockaddr_in * | sin, | |
const char * | value | |||
) |
Definition at line 497 of file acl.c.
References ast_get_ip_or_srv().
Referenced by build_device(), build_gateway(), build_peer(), build_user(), and peer_set_srcaddr().
00498 { 00499 return ast_get_ip_or_srv(sin, value, NULL); 00500 }
int ast_get_ip_or_srv | ( | struct sockaddr_in * | sin, | |
const char * | value, | |||
const char * | service | |||
) |
Definition at line 380 of file acl.c.
References ahp, ast_get_srv(), ast_gethostbyname(), ast_log(), hp, and LOG_WARNING.
Referenced by ast_get_ip(), and build_peer().
00381 { 00382 struct hostent *hp; 00383 struct ast_hostent ahp; 00384 char srv[256]; 00385 char host[256]; 00386 int tportno = ntohs(sin->sin_port); 00387 if (inet_aton(value, &sin->sin_addr)) 00388 return 0; 00389 if (service) { 00390 snprintf(srv, sizeof(srv), "%s.%s", service, value); 00391 if (ast_get_srv(NULL, host, sizeof(host), &tportno, srv) > 0) { 00392 sin->sin_port = htons(tportno); 00393 value = host; 00394 } 00395 } 00396 hp = ast_gethostbyname(value, &ahp); 00397 if (hp) { 00398 memcpy(&sin->sin_addr, hp->h_addr, sizeof(sin->sin_addr)); 00399 } else { 00400 ast_log(LOG_WARNING, "Unable to lookup '%s'\n", value); 00401 return -1; 00402 } 00403 return 0; 00404 }
int ast_lookup_iface | ( | char * | iface, | |
struct in_addr * | address | |||
) |
Definition at line 503 of file acl.c.
References ast_copy_string(), ast_log(), errno, and LOG_WARNING.
00504 { 00505 int mysock, res = 0; 00506 struct my_ifreq ifreq; 00507 00508 memset(&ifreq, 0, sizeof(ifreq)); 00509 ast_copy_string(ifreq.ifrn_name, iface, sizeof(ifreq.ifrn_name)); 00510 00511 mysock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP); 00512 res = ioctl(mysock, SIOCGIFADDR, &ifreq); 00513 00514 close(mysock); 00515 if (res < 0) { 00516 ast_log(LOG_WARNING, "Unable to get IP of %s: %s\n", iface, strerror(errno)); 00517 memcpy((char *)address, (char *)&__ourip, sizeof(__ourip)); 00518 return -1; 00519 } else { 00520 memcpy((char *)address, (char *)&ifreq.ifru_addr.sin_addr, sizeof(ifreq.ifru_addr.sin_addr)); 00521 return 0; 00522 } 00523 }
int ast_ouraddrfor | ( | struct in_addr * | them, | |
struct in_addr * | us | |||
) |
Definition at line 525 of file acl.c.
References ast_log(), LOG_WARNING, and s.
Referenced by ast_find_ourip(), ast_sip_ouraddrfor(), build_device(), build_gateway(), and find_subchannel_and_lock().
00526 { 00527 int s; 00528 struct sockaddr_in sin; 00529 socklen_t slen; 00530 00531 s = socket(PF_INET, SOCK_DGRAM, 0); 00532 if (s < 0) { 00533 ast_log(LOG_WARNING, "Cannot create socket\n"); 00534 return -1; 00535 } 00536 sin.sin_family = AF_INET; 00537 sin.sin_port = 5060; 00538 sin.sin_addr = *them; 00539 if (connect(s, (struct sockaddr *)&sin, sizeof(sin))) { 00540 ast_log(LOG_WARNING, "Cannot connect\n"); 00541 close(s); 00542 return -1; 00543 } 00544 slen = sizeof(sin); 00545 if (getsockname(s, (struct sockaddr *)&sin, &slen)) { 00546 ast_log(LOG_WARNING, "Cannot get socket name\n"); 00547 close(s); 00548 return -1; 00549 } 00550 close(s); 00551 *us = sin.sin_addr; 00552 return 0; 00553 }
int ast_str2tos | ( | const char * | value, | |
unsigned int * | tos | |||
) |
Definition at line 437 of file acl.c.
References ast_log(), dscp_pool1, IPTOS_MINCOST, LOG_WARNING, name, and dscp_codepoint::space.
Referenced by iax_template_parse(), and set_config().
00438 { 00439 int fval; 00440 unsigned int x; 00441 00442 if (sscanf(value, "%30i", &fval) == 1) { 00443 *tos = fval & 0xFF; 00444 return 0; 00445 } 00446 00447 for (x = 0; x < sizeof(dscp_pool1) / sizeof(dscp_pool1[0]); x++) { 00448 if (!strcasecmp(value, dscp_pool1[x].name)) { 00449 *tos = dscp_pool1[x].space << 2; 00450 return 0; 00451 } 00452 } 00453 00454 if (!strcasecmp(value, "lowdelay")) 00455 *tos = IPTOS_LOWDELAY; 00456 else if (!strcasecmp(value, "throughput")) 00457 *tos = IPTOS_THROUGHPUT; 00458 else if (!strcasecmp(value, "reliability")) 00459 *tos = IPTOS_RELIABILITY; 00460 else if (!strcasecmp(value, "mincost")) 00461 *tos = IPTOS_MINCOST; 00462 else if (!strcasecmp(value, "none")) 00463 *tos = 0; 00464 else 00465 return -1; 00466 00467 ast_log(LOG_WARNING, "TOS value %s is deprecated. Please see doc/ip-tos.txt for more information.\n", value); 00468 00469 return 0; 00470 }
const char* ast_tos2str | ( | unsigned int | tos | ) |
Definition at line 472 of file acl.c.
References dscp_pool1, IPTOS_MINCOST, name, and dscp_codepoint::space.
Referenced by sip_show_settings().
00473 { 00474 unsigned int x; 00475 00476 switch (tos) { 00477 case 0: 00478 return "none"; 00479 case IPTOS_LOWDELAY: 00480 return "lowdelay"; 00481 case IPTOS_THROUGHPUT: 00482 return "throughput"; 00483 case IPTOS_RELIABILITY: 00484 return "reliability"; 00485 case IPTOS_MINCOST: 00486 return "mincost"; 00487 default: 00488 for (x = 0; x < sizeof(dscp_pool1) / sizeof(dscp_pool1[0]); x++) { 00489 if (dscp_pool1[x].space == (tos >> 2)) 00490 return dscp_pool1[x].name; 00491 } 00492 } 00493 00494 return "unknown"; 00495 }