#include "asterisk/frame.h"
#include "asterisk/io.h"
#include "asterisk/sched.h"
#include "asterisk/channel.h"
#include <netinet/in.h>
Go to the source code of this file.
typedef int(*) ast_udptl_callback(struct ast_udptl *udptl, struct ast_frame *f, void *data) |
anonymous enum |
UDPTL_ERROR_CORRECTION_NONE | |
UDPTL_ERROR_CORRECTION_FEC | |
UDPTL_ERROR_CORRECTION_REDUNDANCY |
Definition at line 28 of file udptl.h.
00029 { 00030 UDPTL_ERROR_CORRECTION_NONE, 00031 UDPTL_ERROR_CORRECTION_FEC, 00032 UDPTL_ERROR_CORRECTION_REDUNDANCY 00033 };
int ast_udptl_bridge | ( | struct ast_channel * | c0, | |
struct ast_channel * | c1, | |||
int | flags, | |||
struct ast_frame ** | fo, | |||
struct ast_channel ** | rc | |||
) |
Definition at line 978 of file udptl.c.
References ast_channel_lock, ast_channel_trylock, ast_channel_unlock, ast_check_hangup(), AST_FRAME_MODEM, ast_frfree, ast_inet_ntoa(), ast_log(), ast_read(), ast_udptl_get_peer(), ast_waitfor_n(), ast_write(), f, get_proto(), ast_udptl_protocol::get_udptl_info, inaddrcmp(), LOG_DEBUG, LOG_WARNING, ast_channel::masq, ast_channel::masqr, ast_channel::name, ast_udptl_protocol::set_udptl_peer, and ast_channel::tech_pvt.
00979 { 00980 struct ast_frame *f; 00981 struct ast_channel *who; 00982 struct ast_channel *cs[3]; 00983 struct ast_udptl *p0; 00984 struct ast_udptl *p1; 00985 struct ast_udptl_protocol *pr0; 00986 struct ast_udptl_protocol *pr1; 00987 struct sockaddr_in ac0; 00988 struct sockaddr_in ac1; 00989 struct sockaddr_in t0; 00990 struct sockaddr_in t1; 00991 void *pvt0; 00992 void *pvt1; 00993 int to; 00994 00995 ast_channel_lock(c0); 00996 while (ast_channel_trylock(c1)) { 00997 ast_channel_unlock(c0); 00998 usleep(1); 00999 ast_channel_lock(c0); 01000 } 01001 pr0 = get_proto(c0); 01002 pr1 = get_proto(c1); 01003 if (!pr0) { 01004 ast_log(LOG_WARNING, "Can't find native functions for channel '%s'\n", c0->name); 01005 ast_channel_unlock(c0); 01006 ast_channel_unlock(c1); 01007 return -1; 01008 } 01009 if (!pr1) { 01010 ast_log(LOG_WARNING, "Can't find native functions for channel '%s'\n", c1->name); 01011 ast_channel_unlock(c0); 01012 ast_channel_unlock(c1); 01013 return -1; 01014 } 01015 pvt0 = c0->tech_pvt; 01016 pvt1 = c1->tech_pvt; 01017 p0 = pr0->get_udptl_info(c0); 01018 p1 = pr1->get_udptl_info(c1); 01019 if (!p0 || !p1) { 01020 /* Somebody doesn't want to play... */ 01021 ast_channel_unlock(c0); 01022 ast_channel_unlock(c1); 01023 return -2; 01024 } 01025 if (pr0->set_udptl_peer(c0, p1)) { 01026 ast_log(LOG_WARNING, "Channel '%s' failed to talk to '%s'\n", c0->name, c1->name); 01027 memset(&ac1, 0, sizeof(ac1)); 01028 } else { 01029 /* Store UDPTL peer */ 01030 ast_udptl_get_peer(p1, &ac1); 01031 } 01032 if (pr1->set_udptl_peer(c1, p0)) { 01033 ast_log(LOG_WARNING, "Channel '%s' failed to talk back to '%s'\n", c1->name, c0->name); 01034 memset(&ac0, 0, sizeof(ac0)); 01035 } else { 01036 /* Store UDPTL peer */ 01037 ast_udptl_get_peer(p0, &ac0); 01038 } 01039 ast_channel_unlock(c0); 01040 ast_channel_unlock(c1); 01041 cs[0] = c0; 01042 cs[1] = c1; 01043 cs[2] = NULL; 01044 for (;;) { 01045 if ((c0->tech_pvt != pvt0) || 01046 (c1->tech_pvt != pvt1) || 01047 (c0->masq || c0->masqr || c1->masq || c1->masqr)) { 01048 ast_log(LOG_DEBUG, "Oooh, something is weird, backing out\n"); 01049 /* Tell it to try again later */ 01050 return -3; 01051 } 01052 to = -1; 01053 ast_udptl_get_peer(p1, &t1); 01054 ast_udptl_get_peer(p0, &t0); 01055 if (inaddrcmp(&t1, &ac1)) { 01056 ast_log(LOG_DEBUG, "Oooh, '%s' changed end address to %s:%d\n", 01057 c1->name, ast_inet_ntoa(t1.sin_addr), ntohs(t1.sin_port)); 01058 ast_log(LOG_DEBUG, "Oooh, '%s' was %s:%d\n", 01059 c1->name, ast_inet_ntoa(ac1.sin_addr), ntohs(ac1.sin_port)); 01060 memcpy(&ac1, &t1, sizeof(ac1)); 01061 } 01062 if (inaddrcmp(&t0, &ac0)) { 01063 ast_log(LOG_DEBUG, "Oooh, '%s' changed end address to %s:%d\n", 01064 c0->name, ast_inet_ntoa(t0.sin_addr), ntohs(t0.sin_port)); 01065 ast_log(LOG_DEBUG, "Oooh, '%s' was %s:%d\n", 01066 c0->name, ast_inet_ntoa(ac0.sin_addr), ntohs(ac0.sin_port)); 01067 memcpy(&ac0, &t0, sizeof(ac0)); 01068 } 01069 who = ast_waitfor_n(cs, 2, &to); 01070 if (!who) { 01071 ast_log(LOG_DEBUG, "Ooh, empty read...\n"); 01072 /* check for hangup / whentohangup */ 01073 if (ast_check_hangup(c0) || ast_check_hangup(c1)) 01074 break; 01075 continue; 01076 } 01077 f = ast_read(who); 01078 if (!f) { 01079 *fo = f; 01080 *rc = who; 01081 ast_log(LOG_DEBUG, "Oooh, got a %s\n", f ? "digit" : "hangup"); 01082 /* That's all we needed */ 01083 return 0; 01084 } else { 01085 if (f->frametype == AST_FRAME_MODEM) { 01086 /* Forward T.38 frames if they happen upon us */ 01087 if (who == c0) { 01088 ast_write(c1, f); 01089 } else if (who == c1) { 01090 ast_write(c0, f); 01091 } 01092 } 01093 ast_frfree(f); 01094 } 01095 /* Swap priority. Not that it's a big deal at this point */ 01096 cs[2] = cs[0]; 01097 cs[0] = cs[1]; 01098 cs[1] = cs[2]; 01099 } 01100 return -1; 01101 }
void ast_udptl_destroy | ( | struct ast_udptl * | udptl | ) |
Definition at line 878 of file udptl.c.
References ast_io_remove(), ast_udptl::fd, free, ast_udptl::io, and ast_udptl::ioid.
Referenced by __sip_destroy(), create_addr_from_peer(), and sip_alloc().
00879 { 00880 if (udptl->ioid) 00881 ast_io_remove(udptl->io, udptl->ioid); 00882 if (udptl->fd > -1) 00883 close(udptl->fd); 00884 free(udptl); 00885 }
int ast_udptl_fd | ( | struct ast_udptl * | udptl | ) |
Definition at line 596 of file udptl.c.
References ast_udptl::fd.
Referenced by __oh323_new(), and sip_new().
00597 { 00598 return udptl->fd; 00599 }
void ast_udptl_get_current_formats | ( | struct ast_udptl * | udptl, | |
int * | astFormats, | |||
int * | nonAstFormats | |||
) |
int ast_udptl_get_error_correction_scheme | ( | struct ast_udptl * | udptl | ) |
Definition at line 687 of file udptl.c.
References ast_log(), ast_udptl::error_correction_scheme, and LOG_WARNING.
Referenced by create_addr_from_peer(), sip_alloc(), and sip_handle_t38_reinvite().
00688 { 00689 if (udptl) 00690 return udptl->error_correction_scheme; 00691 else { 00692 ast_log(LOG_WARNING, "udptl structure is null\n"); 00693 return -1; 00694 } 00695 }
int ast_udptl_get_far_max_datagram | ( | struct ast_udptl * | udptl | ) |
Definition at line 727 of file udptl.c.
References ast_log(), ast_udptl::far_max_datagram_size, and LOG_WARNING.
00728 { 00729 if (udptl) 00730 return udptl->far_max_datagram_size; 00731 else { 00732 ast_log(LOG_WARNING, "udptl structure is null\n"); 00733 return -1; 00734 } 00735 }
int ast_udptl_get_local_max_datagram | ( | struct ast_udptl * | udptl | ) |
Definition at line 717 of file udptl.c.
References ast_log(), ast_udptl::local_max_datagram_size, and LOG_WARNING.
Referenced by add_sdp(), and sip_handle_t38_reinvite().
00718 { 00719 if (udptl) 00720 return udptl->local_max_datagram_size; 00721 else { 00722 ast_log(LOG_WARNING, "udptl structure is null\n"); 00723 return -1; 00724 } 00725 }
void ast_udptl_get_peer | ( | struct ast_udptl * | udptl, | |
struct sockaddr_in * | them | |||
) |
Definition at line 859 of file udptl.c.
References ast_udptl::them.
Referenced by ast_udptl_bridge(), sip_handle_t38_reinvite(), and sip_set_udptl_peer().
00860 { 00861 memset(them, 0, sizeof(*them)); 00862 them->sin_family = AF_INET; 00863 them->sin_port = udptl->them.sin_port; 00864 them->sin_addr = udptl->them.sin_addr; 00865 }
void ast_udptl_get_us | ( | struct ast_udptl * | udptl, | |
struct sockaddr_in * | us | |||
) |
void ast_udptl_init | ( | void | ) |
Definition at line 1292 of file udptl.c.
References ast_cli_register_multiple(), ast_udptl_reload(), and cli_udptl.
Referenced by main().
01293 { 01294 ast_cli_register_multiple(cli_udptl, sizeof(cli_udptl) / sizeof(struct ast_cli_entry)); 01295 ast_udptl_reload(); 01296 }
int ast_udptl_lookup_code | ( | struct ast_udptl * | udptl, | |
int | isAstFormat, | |||
int | code | |||
) |
struct ast_udptl* ast_udptl_new | ( | struct sched_context * | sched, | |
struct io_context * | io, | |||
int | callbackmode | |||
) |
Definition at line 837 of file udptl.c.
References ast_udptl_new_with_bindaddr(), io, and sched.
00838 { 00839 struct in_addr ia; 00840 memset(&ia, 0, sizeof(ia)); 00841 return ast_udptl_new_with_bindaddr(sched, io, callbackmode, ia); 00842 }
struct ast_udptl* ast_udptl_new_with_bindaddr | ( | struct sched_context * | sched, | |
struct io_context * | io, | |||
int | callbackmode, | |||
struct in_addr | in | |||
) |
Definition at line 753 of file udptl.c.
References ast_calloc, ast_io_add(), AST_IO_IN, ast_log(), ast_random(), errno, ast_udptl::flags, free, io, LOG_WARNING, sched, UDPTL_ERROR_CORRECTION_FEC, UDPTL_ERROR_CORRECTION_NONE, UDPTL_ERROR_CORRECTION_REDUNDANCY, and udptlread().
Referenced by ast_udptl_new(), and sip_alloc().
00754 { 00755 struct ast_udptl *udptl; 00756 int x; 00757 int startplace; 00758 int i; 00759 long int flags; 00760 00761 if (!(udptl = ast_calloc(1, sizeof(*udptl)))) 00762 return NULL; 00763 00764 if (udptlfectype == 2) 00765 udptl->error_correction_scheme = UDPTL_ERROR_CORRECTION_FEC; 00766 else if (udptlfectype == 1) 00767 udptl->error_correction_scheme = UDPTL_ERROR_CORRECTION_REDUNDANCY; 00768 else 00769 udptl->error_correction_scheme = UDPTL_ERROR_CORRECTION_NONE; 00770 udptl->error_correction_span = udptlfecspan; 00771 udptl->error_correction_entries = udptlfecentries; 00772 00773 udptl->far_max_datagram_size = udptlmaxdatagram; 00774 udptl->local_max_datagram_size = udptlmaxdatagram; 00775 00776 memset(&udptl->rx, 0, sizeof(udptl->rx)); 00777 memset(&udptl->tx, 0, sizeof(udptl->tx)); 00778 for (i = 0; i <= UDPTL_BUF_MASK; i++) { 00779 udptl->rx[i].buf_len = -1; 00780 udptl->tx[i].buf_len = -1; 00781 } 00782 00783 udptl->them.sin_family = AF_INET; 00784 udptl->us.sin_family = AF_INET; 00785 00786 if ((udptl->fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { 00787 free(udptl); 00788 ast_log(LOG_WARNING, "Unable to allocate socket: %s\n", strerror(errno)); 00789 return NULL; 00790 } 00791 flags = fcntl(udptl->fd, F_GETFL); 00792 fcntl(udptl->fd, F_SETFL, flags | O_NONBLOCK); 00793 #ifdef SO_NO_CHECK 00794 if (nochecksums) 00795 setsockopt(udptl->fd, SOL_SOCKET, SO_NO_CHECK, &nochecksums, sizeof(nochecksums)); 00796 #endif 00797 /* Find us a place */ 00798 x = (ast_random() % (udptlend - udptlstart)) + udptlstart; 00799 if (use_even_ports && (x & 1)) { 00800 ++x; 00801 } 00802 startplace = x; 00803 for (;;) { 00804 udptl->us.sin_port = htons(x); 00805 udptl->us.sin_addr = addr; 00806 if (bind(udptl->fd, (struct sockaddr *) &udptl->us, sizeof(udptl->us)) == 0) 00807 break; 00808 if (errno != EADDRINUSE) { 00809 ast_log(LOG_WARNING, "Unexpected bind error: %s\n", strerror(errno)); 00810 close(udptl->fd); 00811 free(udptl); 00812 return NULL; 00813 } 00814 if (use_even_ports) { 00815 x += 2; 00816 } else { 00817 ++x; 00818 } 00819 if (x > udptlend) 00820 x = udptlstart; 00821 if (x == startplace) { 00822 ast_log(LOG_WARNING, "No UDPTL ports remaining\n"); 00823 close(udptl->fd); 00824 free(udptl); 00825 return NULL; 00826 } 00827 } 00828 if (io && sched && callbackmode) { 00829 /* Operate this one in a callback mode */ 00830 udptl->sched = sched; 00831 udptl->io = io; 00832 udptl->ioid = ast_io_add(udptl->io, udptl->fd, udptlread, AST_IO_IN, udptl); 00833 } 00834 return udptl; 00835 }
void ast_udptl_offered_from_local | ( | struct ast_udptl * | udptl, | |
int | local | |||
) |
Definition at line 679 of file udptl.c.
References ast_log(), LOG_WARNING, and ast_udptl::udptl_offered_from_local.
Referenced by transmit_invite().
00680 { 00681 if (udptl) 00682 udptl->udptl_offered_from_local = local; 00683 else 00684 ast_log(LOG_WARNING, "udptl structure is null\n"); 00685 }
int ast_udptl_proto_register | ( | struct ast_udptl_protocol * | proto | ) |
Definition at line 948 of file udptl.c.
References ast_log(), LOG_WARNING, ast_udptl_protocol::next, protos, and ast_udptl_protocol::type.
Referenced by load_module().
00949 { 00950 struct ast_udptl_protocol *cur; 00951 00952 cur = protos; 00953 while (cur) { 00954 if (cur->type == proto->type) { 00955 ast_log(LOG_WARNING, "Tried to register same protocol '%s' twice\n", cur->type); 00956 return -1; 00957 } 00958 cur = cur->next; 00959 } 00960 proto->next = protos; 00961 protos = proto; 00962 return 0; 00963 }
void ast_udptl_proto_unregister | ( | struct ast_udptl_protocol * | proto | ) |
Definition at line 928 of file udptl.c.
References ast_udptl_protocol::next, and protos.
Referenced by unload_module().
00929 { 00930 struct ast_udptl_protocol *cur; 00931 struct ast_udptl_protocol *prev; 00932 00933 cur = protos; 00934 prev = NULL; 00935 while (cur) { 00936 if (cur == proto) { 00937 if (prev) 00938 prev->next = proto->next; 00939 else 00940 protos = proto->next; 00941 return; 00942 } 00943 prev = cur; 00944 cur = cur->next; 00945 } 00946 }
Definition at line 628 of file udptl.c.
References ast_assert, AST_FRIENDLY_OFFSET, ast_inet_ntoa(), ast_log(), ast_null_frame, ast_verbose(), errno, ast_udptl::f, ast_udptl::fd, len(), LOG_DEBUG, LOG_WARNING, ast_udptl::nat, ast_udptl::rawdata, ast_udptl::them, udptl_debug_test_addr(), and udptl_rx_packet().
Referenced by sip_rtp_read(), skinny_rtp_read(), and udptlread().
00629 { 00630 int res; 00631 struct sockaddr_in sin; 00632 socklen_t len; 00633 uint16_t seqno = 0; 00634 uint16_t *udptlheader; 00635 00636 len = sizeof(sin); 00637 00638 /* Cache where the header will go */ 00639 res = recvfrom(udptl->fd, 00640 udptl->rawdata + AST_FRIENDLY_OFFSET, 00641 sizeof(udptl->rawdata) - AST_FRIENDLY_OFFSET, 00642 0, 00643 (struct sockaddr *) &sin, 00644 &len); 00645 udptlheader = (uint16_t *)(udptl->rawdata + AST_FRIENDLY_OFFSET); 00646 if (res < 0) { 00647 if (errno != EAGAIN) 00648 ast_log(LOG_WARNING, "UDPTL read error: %s\n", strerror(errno)); 00649 ast_assert(errno != EBADF); 00650 return &ast_null_frame; 00651 } 00652 00653 /* Ignore if the other side hasn't been given an address yet. */ 00654 if (!udptl->them.sin_addr.s_addr || !udptl->them.sin_port) 00655 return &ast_null_frame; 00656 00657 if (udptl->nat) { 00658 /* Send to whoever sent to us */ 00659 if ((udptl->them.sin_addr.s_addr != sin.sin_addr.s_addr) || 00660 (udptl->them.sin_port != sin.sin_port)) { 00661 memcpy(&udptl->them, &sin, sizeof(udptl->them)); 00662 ast_log(LOG_DEBUG, "UDPTL NAT: Using address %s:%d\n", ast_inet_ntoa(udptl->them.sin_addr), ntohs(udptl->them.sin_port)); 00663 } 00664 } 00665 00666 if (udptl_debug_test_addr(&sin)) { 00667 ast_verbose("Got UDPTL packet from %s:%d (type %d, seq %d, len %d)\n", 00668 ast_inet_ntoa(sin.sin_addr), ntohs(sin.sin_port), 0, seqno, res); 00669 } 00670 #if 0 00671 printf("Got UDPTL packet from %s:%d (seq %d, len = %d)\n", ast_inet_ntoa(sin.sin_addr), ntohs(sin.sin_port), seqno, res); 00672 #endif 00673 if (udptl_rx_packet(udptl, udptl->rawdata + AST_FRIENDLY_OFFSET, res) < 1) 00674 return &ast_null_frame; 00675 00676 return &udptl->f[0]; 00677 }
void ast_udptl_reload | ( | void | ) |
Definition at line 1184 of file udptl.c.
References ast_config_destroy(), ast_config_load(), ast_false(), ast_log(), ast_true(), ast_variable_retrieve(), ast_verbose(), LOCAL_FAX_MAX_DATAGRAM, LOG_NOTICE, LOG_WARNING, MAX_FEC_ENTRIES, MAX_FEC_SPAN, option_verbose, s, and VERBOSE_PREFIX_2.
Referenced by ast_udptl_init().
01185 { 01186 struct ast_config *cfg; 01187 const char *s; 01188 01189 udptlstart = 4500; 01190 udptlend = 4999; 01191 udptlfectype = 0; 01192 udptlfecentries = 0; 01193 udptlfecspan = 0; 01194 udptlmaxdatagram = 0; 01195 use_even_ports = 0; 01196 01197 if ((cfg = ast_config_load("udptl.conf"))) { 01198 if ((s = ast_variable_retrieve(cfg, "general", "udptlstart"))) { 01199 udptlstart = atoi(s); 01200 if (udptlstart < 1024) { 01201 ast_log(LOG_WARNING, "Ports under 1024 are not allowed for T.38.\n"); 01202 udptlstart = 1024; 01203 } 01204 if (udptlstart > 65535) { 01205 ast_log(LOG_WARNING, "Ports over 65535 are invalid.\n"); 01206 udptlstart = 65535; 01207 } 01208 } 01209 if ((s = ast_variable_retrieve(cfg, "general", "udptlend"))) { 01210 udptlend = atoi(s); 01211 if (udptlend < 1024) { 01212 ast_log(LOG_WARNING, "Ports under 1024 are not allowed for T.38.\n"); 01213 udptlend = 1024; 01214 } 01215 if (udptlend > 65535) { 01216 ast_log(LOG_WARNING, "Ports over 65535 are invalid.\n"); 01217 udptlend = 65535; 01218 } 01219 } 01220 if ((s = ast_variable_retrieve(cfg, "general", "udptlchecksums"))) { 01221 #ifdef SO_NO_CHECK 01222 if (ast_false(s)) 01223 nochecksums = 1; 01224 else 01225 nochecksums = 0; 01226 #else 01227 if (ast_false(s)) 01228 ast_log(LOG_WARNING, "Disabling UDPTL checksums is not supported on this operating system!\n"); 01229 #endif 01230 } 01231 if ((s = ast_variable_retrieve(cfg, "general", "T38FaxUdpEC"))) { 01232 if (strcmp(s, "t38UDPFEC") == 0) 01233 udptlfectype = 2; 01234 else if (strcmp(s, "t38UDPRedundancy") == 0) 01235 udptlfectype = 1; 01236 } 01237 if ((s = ast_variable_retrieve(cfg, "general", "T38FaxMaxDatagram"))) { 01238 udptlmaxdatagram = atoi(s); 01239 if (udptlmaxdatagram < 100) { 01240 ast_log(LOG_WARNING, "Too small T38FaxMaxDatagram size. Defaulting to 100.\n"); 01241 udptlmaxdatagram = 100; 01242 } 01243 if (udptlmaxdatagram > LOCAL_FAX_MAX_DATAGRAM) { 01244 ast_log(LOG_WARNING, "Too large T38FaxMaxDatagram size. Defaulting to %d.\n", LOCAL_FAX_MAX_DATAGRAM); 01245 udptlmaxdatagram = LOCAL_FAX_MAX_DATAGRAM; 01246 } 01247 } 01248 if ((s = ast_variable_retrieve(cfg, "general", "UDPTLFECentries"))) { 01249 udptlfecentries = atoi(s); 01250 if (udptlfecentries < 1) { 01251 ast_log(LOG_WARNING, "Too small UDPTLFECentries value. Defaulting to 1.\n"); 01252 udptlfecentries = 1; 01253 } 01254 if (udptlfecentries > MAX_FEC_ENTRIES) { 01255 ast_log(LOG_WARNING, "Too large UDPTLFECentries value. Defaulting to %d.\n", MAX_FEC_ENTRIES); 01256 udptlfecentries = MAX_FEC_ENTRIES; 01257 } 01258 } 01259 if ((s = ast_variable_retrieve(cfg, "general", "UDPTLFECspan"))) { 01260 udptlfecspan = atoi(s); 01261 if (udptlfecspan < 1) { 01262 ast_log(LOG_WARNING, "Too small UDPTLFECspan value. Defaulting to 1.\n"); 01263 udptlfecspan = 1; 01264 } 01265 if (udptlfecspan > MAX_FEC_SPAN) { 01266 ast_log(LOG_WARNING, "Too large UDPTLFECspan value. Defaulting to %d.\n", MAX_FEC_SPAN); 01267 udptlfecspan = MAX_FEC_SPAN; 01268 } 01269 } 01270 if ((s = ast_variable_retrieve(cfg, "general", "use_even_ports"))) { 01271 use_even_ports = ast_true(s); 01272 } 01273 ast_config_destroy(cfg); 01274 } 01275 if (udptlstart >= udptlend) { 01276 ast_log(LOG_WARNING, "Unreasonable values for UDPTL start/end\n"); 01277 udptlstart = 4500; 01278 udptlend = 4999; 01279 } 01280 if (use_even_ports && (udptlstart & 1)) { 01281 ++udptlstart; 01282 ast_log(LOG_NOTICE, "Odd numbered udptlstart specified but use_even_ports enabled. udptlstart is now %d\n", udptlstart); 01283 } 01284 if (use_even_ports && (udptlend & 1)) { 01285 --udptlend; 01286 ast_log(LOG_NOTICE, "Odd numbered udptlend specified but use_event_ports enabled. udptlend is now %d\n", udptlend); 01287 } 01288 if (option_verbose > 1) 01289 ast_verbose(VERBOSE_PREFIX_2 "UDPTL allocating from port range %d -> %d\n", udptlstart, udptlend); 01290 }
void ast_udptl_reset | ( | struct ast_udptl * | udptl | ) |
void ast_udptl_set_callback | ( | struct ast_udptl * | udptl, | |
ast_udptl_callback | callback | |||
) |
Definition at line 606 of file udptl.c.
References ast_udptl::callback.
00607 { 00608 udptl->callback = callback; 00609 }
void ast_udptl_set_data | ( | struct ast_udptl * | udptl, | |
void * | data | |||
) |
Definition at line 601 of file udptl.c.
References ast_udptl::data.
00602 { 00603 udptl->data = data; 00604 }
void ast_udptl_set_error_correction_scheme | ( | struct ast_udptl * | udptl, | |
int | ec | |||
) |
Definition at line 697 of file udptl.c.
References ast_log(), ast_udptl::error_correction_scheme, LOG_WARNING, UDPTL_ERROR_CORRECTION_FEC, UDPTL_ERROR_CORRECTION_NONE, and UDPTL_ERROR_CORRECTION_REDUNDANCY.
Referenced by process_sdp_a_image(), and sip_handle_t38_reinvite().
00698 { 00699 if (udptl) { 00700 switch (ec) { 00701 case UDPTL_ERROR_CORRECTION_FEC: 00702 udptl->error_correction_scheme = UDPTL_ERROR_CORRECTION_FEC; 00703 break; 00704 case UDPTL_ERROR_CORRECTION_REDUNDANCY: 00705 udptl->error_correction_scheme = UDPTL_ERROR_CORRECTION_REDUNDANCY; 00706 break; 00707 case UDPTL_ERROR_CORRECTION_NONE: 00708 udptl->error_correction_scheme = UDPTL_ERROR_CORRECTION_NONE; 00709 break; 00710 default: 00711 ast_log(LOG_WARNING, "error correction parameter invalid\n"); 00712 }; 00713 } else 00714 ast_log(LOG_WARNING, "udptl structure is null\n"); 00715 }
void ast_udptl_set_far_max_datagram | ( | struct ast_udptl * | udptl, | |
int | max_datagram | |||
) |
Definition at line 745 of file udptl.c.
References ast_log(), ast_udptl::far_max_datagram_size, and LOG_WARNING.
Referenced by process_sdp_a_image(), and sip_handle_t38_reinvite().
00746 { 00747 if (udptl) 00748 udptl->far_max_datagram_size = max_datagram; 00749 else 00750 ast_log(LOG_WARNING, "udptl structure is null\n"); 00751 }
void ast_udptl_set_local_max_datagram | ( | struct ast_udptl * | udptl, | |
int | max_datagram | |||
) |
Definition at line 737 of file udptl.c.
References ast_log(), ast_udptl::local_max_datagram_size, and LOG_WARNING.
Referenced by process_sdp_a_image(), and sip_handle_t38_reinvite().
00738 { 00739 if (udptl) 00740 udptl->local_max_datagram_size = max_datagram; 00741 else 00742 ast_log(LOG_WARNING, "udptl structure is null\n"); 00743 }
void ast_udptl_set_m_type | ( | struct ast_udptl * | udptl, | |
int | pt | |||
) |
void ast_udptl_set_peer | ( | struct ast_udptl * | udptl, | |
struct sockaddr_in * | them | |||
) |
Definition at line 853 of file udptl.c.
References ast_udptl::them.
Referenced by process_sdp().
00854 { 00855 udptl->them.sin_port = them->sin_port; 00856 udptl->them.sin_addr = them->sin_addr; 00857 }
void ast_udptl_set_udptlmap_type | ( | struct ast_udptl * | udptl, | |
int | pt, | |||
char * | mimeType, | |||
char * | mimeSubtype | |||
) |
void ast_udptl_setnat | ( | struct ast_udptl * | udptl, | |
int | nat | |||
) |
int ast_udptl_settos | ( | struct ast_udptl * | udptl, | |
int | tos | |||
) |
Definition at line 844 of file udptl.c.
References ast_log(), ast_udptl::fd, and LOG_WARNING.
Referenced by sip_alloc().
00845 { 00846 int res; 00847 00848 if ((res = setsockopt(udptl->fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos)))) 00849 ast_log(LOG_WARNING, "UDPTL unable to set TOS to %d\n", tos); 00850 return res; 00851 }
void ast_udptl_stop | ( | struct ast_udptl * | udptl | ) |
Definition at line 872 of file udptl.c.
References ast_udptl::them.
Referenced by process_sdp(), and stop_media_flows().
00873 { 00874 memset(&udptl->them.sin_addr, 0, sizeof(udptl->them.sin_addr)); 00875 memset(&udptl->them.sin_port, 0, sizeof(udptl->them.sin_port)); 00876 }
Definition at line 887 of file udptl.c.
References AST_FRAME_MODEM, ast_inet_ntoa(), ast_log(), ast_verbose(), errno, f, len(), LOCAL_FAX_MAX_DATAGRAM, LOG_NOTICE, LOG_WARNING, s, seq, udptl_build_packet(), and udptl_debug_test_addr().
Referenced by sip_write().
00888 { 00889 int seq; 00890 int len; 00891 int res; 00892 uint8_t buf[LOCAL_FAX_MAX_DATAGRAM * 2]; 00893 00894 /* If we have no peer, return immediately */ 00895 if (s->them.sin_addr.s_addr == INADDR_ANY) 00896 return 0; 00897 00898 /* If there is no data length, return immediately */ 00899 if (f->datalen == 0) 00900 return 0; 00901 00902 if (f->frametype != AST_FRAME_MODEM) { 00903 ast_log(LOG_WARNING, "UDPTL can only send T.38 data\n"); 00904 return -1; 00905 } 00906 00907 /* Save seq_no for debug output because udptl_build_packet increments it */ 00908 seq = s->tx_seq_no & 0xFFFF; 00909 00910 /* Cook up the UDPTL packet, with the relevant EC info. */ 00911 len = udptl_build_packet(s, buf, sizeof(buf), f->data, f->datalen); 00912 00913 if (len > 0 && s->them.sin_port && s->them.sin_addr.s_addr) { 00914 if ((res = sendto(s->fd, buf, len, 0, (struct sockaddr *) &s->them, sizeof(s->them))) < 0) 00915 ast_log(LOG_NOTICE, "UDPTL Transmission error to %s:%d: %s\n", ast_inet_ntoa(s->them.sin_addr), ntohs(s->them.sin_port), strerror(errno)); 00916 #if 0 00917 printf("Sent %d bytes of UDPTL data to %s:%d\n", res, ast_inet_ntoa(udptl->them.sin_addr), ntohs(udptl->them.sin_port)); 00918 #endif 00919 if (udptl_debug_test_addr(&s->them)) 00920 ast_verbose("Sent UDPTL packet to %s:%d (type %d, seq %d, len %d)\n", 00921 ast_inet_ntoa(s->them.sin_addr), 00922 ntohs(s->them.sin_port), 0, seq, len); 00923 } 00924 00925 return 0; 00926 }