#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 969 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.
00970 { 00971 struct ast_frame *f; 00972 struct ast_channel *who; 00973 struct ast_channel *cs[3]; 00974 struct ast_udptl *p0; 00975 struct ast_udptl *p1; 00976 struct ast_udptl_protocol *pr0; 00977 struct ast_udptl_protocol *pr1; 00978 struct sockaddr_in ac0; 00979 struct sockaddr_in ac1; 00980 struct sockaddr_in t0; 00981 struct sockaddr_in t1; 00982 void *pvt0; 00983 void *pvt1; 00984 int to; 00985 00986 ast_channel_lock(c0); 00987 while (ast_channel_trylock(c1)) { 00988 ast_channel_unlock(c0); 00989 usleep(1); 00990 ast_channel_lock(c0); 00991 } 00992 pr0 = get_proto(c0); 00993 pr1 = get_proto(c1); 00994 if (!pr0) { 00995 ast_log(LOG_WARNING, "Can't find native functions for channel '%s'\n", c0->name); 00996 ast_channel_unlock(c0); 00997 ast_channel_unlock(c1); 00998 return -1; 00999 } 01000 if (!pr1) { 01001 ast_log(LOG_WARNING, "Can't find native functions for channel '%s'\n", c1->name); 01002 ast_channel_unlock(c0); 01003 ast_channel_unlock(c1); 01004 return -1; 01005 } 01006 pvt0 = c0->tech_pvt; 01007 pvt1 = c1->tech_pvt; 01008 p0 = pr0->get_udptl_info(c0); 01009 p1 = pr1->get_udptl_info(c1); 01010 if (!p0 || !p1) { 01011 /* Somebody doesn't want to play... */ 01012 ast_channel_unlock(c0); 01013 ast_channel_unlock(c1); 01014 return -2; 01015 } 01016 if (pr0->set_udptl_peer(c0, p1)) { 01017 ast_log(LOG_WARNING, "Channel '%s' failed to talk to '%s'\n", c0->name, c1->name); 01018 memset(&ac1, 0, sizeof(ac1)); 01019 } else { 01020 /* Store UDPTL peer */ 01021 ast_udptl_get_peer(p1, &ac1); 01022 } 01023 if (pr1->set_udptl_peer(c1, p0)) { 01024 ast_log(LOG_WARNING, "Channel '%s' failed to talk back to '%s'\n", c1->name, c0->name); 01025 memset(&ac0, 0, sizeof(ac0)); 01026 } else { 01027 /* Store UDPTL peer */ 01028 ast_udptl_get_peer(p0, &ac0); 01029 } 01030 ast_channel_unlock(c0); 01031 ast_channel_unlock(c1); 01032 cs[0] = c0; 01033 cs[1] = c1; 01034 cs[2] = NULL; 01035 for (;;) { 01036 if ((c0->tech_pvt != pvt0) || 01037 (c1->tech_pvt != pvt1) || 01038 (c0->masq || c0->masqr || c1->masq || c1->masqr)) { 01039 ast_log(LOG_DEBUG, "Oooh, something is weird, backing out\n"); 01040 /* Tell it to try again later */ 01041 return -3; 01042 } 01043 to = -1; 01044 ast_udptl_get_peer(p1, &t1); 01045 ast_udptl_get_peer(p0, &t0); 01046 if (inaddrcmp(&t1, &ac1)) { 01047 ast_log(LOG_DEBUG, "Oooh, '%s' changed end address to %s:%d\n", 01048 c1->name, ast_inet_ntoa(t1.sin_addr), ntohs(t1.sin_port)); 01049 ast_log(LOG_DEBUG, "Oooh, '%s' was %s:%d\n", 01050 c1->name, ast_inet_ntoa(ac1.sin_addr), ntohs(ac1.sin_port)); 01051 memcpy(&ac1, &t1, sizeof(ac1)); 01052 } 01053 if (inaddrcmp(&t0, &ac0)) { 01054 ast_log(LOG_DEBUG, "Oooh, '%s' changed end address to %s:%d\n", 01055 c0->name, ast_inet_ntoa(t0.sin_addr), ntohs(t0.sin_port)); 01056 ast_log(LOG_DEBUG, "Oooh, '%s' was %s:%d\n", 01057 c0->name, ast_inet_ntoa(ac0.sin_addr), ntohs(ac0.sin_port)); 01058 memcpy(&ac0, &t0, sizeof(ac0)); 01059 } 01060 who = ast_waitfor_n(cs, 2, &to); 01061 if (!who) { 01062 ast_log(LOG_DEBUG, "Ooh, empty read...\n"); 01063 /* check for hangup / whentohangup */ 01064 if (ast_check_hangup(c0) || ast_check_hangup(c1)) 01065 break; 01066 continue; 01067 } 01068 f = ast_read(who); 01069 if (!f) { 01070 *fo = f; 01071 *rc = who; 01072 ast_log(LOG_DEBUG, "Oooh, got a %s\n", f ? "digit" : "hangup"); 01073 /* That's all we needed */ 01074 return 0; 01075 } else { 01076 if (f->frametype == AST_FRAME_MODEM) { 01077 /* Forward T.38 frames if they happen upon us */ 01078 if (who == c0) { 01079 ast_write(c1, f); 01080 } else if (who == c1) { 01081 ast_write(c0, f); 01082 } 01083 } 01084 ast_frfree(f); 01085 } 01086 /* Swap priority. Not that it's a big deal at this point */ 01087 cs[2] = cs[0]; 01088 cs[0] = cs[1]; 01089 cs[1] = cs[2]; 01090 } 01091 return -1; 01092 }
void ast_udptl_destroy | ( | struct ast_udptl * | udptl | ) |
Definition at line 869 of file udptl.c.
References ast_io_remove(), ast_udptl::fd, free, ast_udptl::io, and ast_udptl::ioid.
Referenced by __sip_destroy(), and create_addr_from_peer().
00870 { 00871 if (udptl->ioid) 00872 ast_io_remove(udptl->io, udptl->ioid); 00873 if (udptl->fd > -1) 00874 close(udptl->fd); 00875 free(udptl); 00876 }
int ast_udptl_fd | ( | struct ast_udptl * | udptl | ) |
Definition at line 595 of file udptl.c.
References ast_udptl::fd.
Referenced by __oh323_new(), and sip_new().
00596 { 00597 return udptl->fd; 00598 }
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 686 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().
00687 { 00688 if (udptl) 00689 return udptl->error_correction_scheme; 00690 else { 00691 ast_log(LOG_WARNING, "udptl structure is null\n"); 00692 return -1; 00693 } 00694 }
int ast_udptl_get_far_max_datagram | ( | struct ast_udptl * | udptl | ) |
Definition at line 726 of file udptl.c.
References ast_log(), ast_udptl::far_max_datagram_size, and LOG_WARNING.
00727 { 00728 if (udptl) 00729 return udptl->far_max_datagram_size; 00730 else { 00731 ast_log(LOG_WARNING, "udptl structure is null\n"); 00732 return -1; 00733 } 00734 }
int ast_udptl_get_local_max_datagram | ( | struct ast_udptl * | udptl | ) |
Definition at line 716 of file udptl.c.
References ast_log(), ast_udptl::local_max_datagram_size, and LOG_WARNING.
Referenced by add_t38_sdp(), and sip_handle_t38_reinvite().
00717 { 00718 if (udptl) 00719 return udptl->local_max_datagram_size; 00720 else { 00721 ast_log(LOG_WARNING, "udptl structure is null\n"); 00722 return -1; 00723 } 00724 }
void ast_udptl_get_peer | ( | struct ast_udptl * | udptl, | |
struct sockaddr_in * | them | |||
) |
Definition at line 850 of file udptl.c.
References ast_udptl::them.
Referenced by ast_udptl_bridge(), sip_handle_t38_reinvite(), and sip_set_udptl_peer().
00851 { 00852 memset(them, 0, sizeof(*them)); 00853 them->sin_family = AF_INET; 00854 them->sin_port = udptl->them.sin_port; 00855 them->sin_addr = udptl->them.sin_addr; 00856 }
void ast_udptl_get_us | ( | struct ast_udptl * | udptl, | |
struct sockaddr_in * | us | |||
) |
void ast_udptl_init | ( | void | ) |
Definition at line 1271 of file udptl.c.
References ast_cli_register_multiple(), ast_udptl_reload(), and cli_udptl.
Referenced by main().
01272 { 01273 ast_cli_register_multiple(cli_udptl, sizeof(cli_udptl) / sizeof(struct ast_cli_entry)); 01274 ast_udptl_reload(); 01275 }
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 828 of file udptl.c.
References ast_udptl_new_with_bindaddr(), io, and sched.
00829 { 00830 struct in_addr ia; 00831 memset(&ia, 0, sizeof(ia)); 00832 return ast_udptl_new_with_bindaddr(sched, io, callbackmode, ia); 00833 }
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 752 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().
00753 { 00754 struct ast_udptl *udptl; 00755 int x; 00756 int startplace; 00757 int i; 00758 long int flags; 00759 00760 if (!(udptl = ast_calloc(1, sizeof(*udptl)))) 00761 return NULL; 00762 00763 if (udptlfectype == 2) 00764 udptl->error_correction_scheme = UDPTL_ERROR_CORRECTION_FEC; 00765 else if (udptlfectype == 1) 00766 udptl->error_correction_scheme = UDPTL_ERROR_CORRECTION_REDUNDANCY; 00767 else 00768 udptl->error_correction_scheme = UDPTL_ERROR_CORRECTION_NONE; 00769 udptl->error_correction_span = udptlfecspan; 00770 udptl->error_correction_entries = udptlfecentries; 00771 00772 udptl->far_max_datagram_size = udptlmaxdatagram; 00773 udptl->local_max_datagram_size = udptlmaxdatagram; 00774 00775 memset(&udptl->rx, 0, sizeof(udptl->rx)); 00776 memset(&udptl->tx, 0, sizeof(udptl->tx)); 00777 for (i = 0; i <= UDPTL_BUF_MASK; i++) { 00778 udptl->rx[i].buf_len = -1; 00779 udptl->tx[i].buf_len = -1; 00780 } 00781 00782 udptl->them.sin_family = AF_INET; 00783 udptl->us.sin_family = AF_INET; 00784 00785 if ((udptl->fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { 00786 free(udptl); 00787 ast_log(LOG_WARNING, "Unable to allocate socket: %s\n", strerror(errno)); 00788 return NULL; 00789 } 00790 flags = fcntl(udptl->fd, F_GETFL); 00791 fcntl(udptl->fd, F_SETFL, flags | O_NONBLOCK); 00792 #ifdef SO_NO_CHECK 00793 if (nochecksums) 00794 setsockopt(udptl->fd, SOL_SOCKET, SO_NO_CHECK, &nochecksums, sizeof(nochecksums)); 00795 #endif 00796 /* Find us a place */ 00797 x = (ast_random() % (udptlend - udptlstart)) + udptlstart; 00798 startplace = x; 00799 for (;;) { 00800 udptl->us.sin_port = htons(x); 00801 udptl->us.sin_addr = addr; 00802 if (bind(udptl->fd, (struct sockaddr *) &udptl->us, sizeof(udptl->us)) == 0) 00803 break; 00804 if (errno != EADDRINUSE) { 00805 ast_log(LOG_WARNING, "Unexpected bind error: %s\n", strerror(errno)); 00806 close(udptl->fd); 00807 free(udptl); 00808 return NULL; 00809 } 00810 if (++x > udptlend) 00811 x = udptlstart; 00812 if (x == startplace) { 00813 ast_log(LOG_WARNING, "No UDPTL ports remaining\n"); 00814 close(udptl->fd); 00815 free(udptl); 00816 return NULL; 00817 } 00818 } 00819 if (io && sched && callbackmode) { 00820 /* Operate this one in a callback mode */ 00821 udptl->sched = sched; 00822 udptl->io = io; 00823 udptl->ioid = ast_io_add(udptl->io, udptl->fd, udptlread, AST_IO_IN, udptl); 00824 } 00825 return udptl; 00826 }
void ast_udptl_offered_from_local | ( | struct ast_udptl * | udptl, | |
int | local | |||
) |
Definition at line 678 of file udptl.c.
References ast_log(), LOG_WARNING, and ast_udptl::udptl_offered_from_local.
Referenced by transmit_invite(), transmit_reinvite_with_t38_sdp(), and transmit_response_with_t38_sdp().
00679 { 00680 if (udptl) 00681 udptl->udptl_offered_from_local = local; 00682 else 00683 ast_log(LOG_WARNING, "udptl structure is null\n"); 00684 }
int ast_udptl_proto_register | ( | struct ast_udptl_protocol * | proto | ) |
Definition at line 939 of file udptl.c.
References ast_log(), LOG_WARNING, ast_udptl_protocol::next, protos, and ast_udptl_protocol::type.
Referenced by load_module().
00940 { 00941 struct ast_udptl_protocol *cur; 00942 00943 cur = protos; 00944 while (cur) { 00945 if (cur->type == proto->type) { 00946 ast_log(LOG_WARNING, "Tried to register same protocol '%s' twice\n", cur->type); 00947 return -1; 00948 } 00949 cur = cur->next; 00950 } 00951 proto->next = protos; 00952 protos = proto; 00953 return 0; 00954 }
void ast_udptl_proto_unregister | ( | struct ast_udptl_protocol * | proto | ) |
Definition at line 919 of file udptl.c.
References ast_udptl_protocol::next, and protos.
Referenced by unload_module().
00920 { 00921 struct ast_udptl_protocol *cur; 00922 struct ast_udptl_protocol *prev; 00923 00924 cur = protos; 00925 prev = NULL; 00926 while (cur) { 00927 if (cur == proto) { 00928 if (prev) 00929 prev->next = proto->next; 00930 else 00931 protos = proto->next; 00932 return; 00933 } 00934 prev = cur; 00935 cur = cur->next; 00936 } 00937 }
Definition at line 627 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().
00628 { 00629 int res; 00630 struct sockaddr_in sin; 00631 socklen_t len; 00632 uint16_t seqno = 0; 00633 uint16_t *udptlheader; 00634 00635 len = sizeof(sin); 00636 00637 /* Cache where the header will go */ 00638 res = recvfrom(udptl->fd, 00639 udptl->rawdata + AST_FRIENDLY_OFFSET, 00640 sizeof(udptl->rawdata) - AST_FRIENDLY_OFFSET, 00641 0, 00642 (struct sockaddr *) &sin, 00643 &len); 00644 udptlheader = (uint16_t *)(udptl->rawdata + AST_FRIENDLY_OFFSET); 00645 if (res < 0) { 00646 if (errno != EAGAIN) 00647 ast_log(LOG_WARNING, "UDPTL read error: %s\n", strerror(errno)); 00648 ast_assert(errno != EBADF); 00649 return &ast_null_frame; 00650 } 00651 00652 /* Ignore if the other side hasn't been given an address yet. */ 00653 if (!udptl->them.sin_addr.s_addr || !udptl->them.sin_port) 00654 return &ast_null_frame; 00655 00656 if (udptl->nat) { 00657 /* Send to whoever sent to us */ 00658 if ((udptl->them.sin_addr.s_addr != sin.sin_addr.s_addr) || 00659 (udptl->them.sin_port != sin.sin_port)) { 00660 memcpy(&udptl->them, &sin, sizeof(udptl->them)); 00661 ast_log(LOG_DEBUG, "UDPTL NAT: Using address %s:%d\n", ast_inet_ntoa(udptl->them.sin_addr), ntohs(udptl->them.sin_port)); 00662 } 00663 } 00664 00665 if (udptl_debug_test_addr(&sin)) { 00666 ast_verbose("Got UDPTL packet from %s:%d (type %d, seq %d, len %d)\n", 00667 ast_inet_ntoa(sin.sin_addr), ntohs(sin.sin_port), 0, seqno, res); 00668 } 00669 #if 0 00670 printf("Got UDPTL packet from %s:%d (seq %d, len = %d)\n", ast_inet_ntoa(sin.sin_addr), ntohs(sin.sin_port), seqno, res); 00671 #endif 00672 if (udptl_rx_packet(udptl, udptl->rawdata + AST_FRIENDLY_OFFSET, res) < 1) 00673 return &ast_null_frame; 00674 00675 return &udptl->f[0]; 00676 }
void ast_udptl_reload | ( | void | ) |
Definition at line 1175 of file udptl.c.
References ast_config_destroy(), ast_config_load(), ast_false(), ast_log(), ast_variable_retrieve(), ast_verbose(), LOCAL_FAX_MAX_DATAGRAM, LOG_WARNING, MAX_FEC_ENTRIES, MAX_FEC_SPAN, option_verbose, s, and VERBOSE_PREFIX_2.
Referenced by ast_udptl_init().
01176 { 01177 struct ast_config *cfg; 01178 const char *s; 01179 01180 udptlstart = 4500; 01181 udptlend = 4999; 01182 udptlfectype = 0; 01183 udptlfecentries = 0; 01184 udptlfecspan = 0; 01185 udptlmaxdatagram = 0; 01186 01187 if ((cfg = ast_config_load("udptl.conf"))) { 01188 if ((s = ast_variable_retrieve(cfg, "general", "udptlstart"))) { 01189 udptlstart = atoi(s); 01190 if (udptlstart < 1024) { 01191 ast_log(LOG_WARNING, "Ports under 1024 are not allowed for T.38.\n"); 01192 udptlstart = 1024; 01193 } 01194 if (udptlstart > 65535) { 01195 ast_log(LOG_WARNING, "Ports over 65535 are invalid.\n"); 01196 udptlstart = 65535; 01197 } 01198 } 01199 if ((s = ast_variable_retrieve(cfg, "general", "udptlend"))) { 01200 udptlend = atoi(s); 01201 if (udptlend < 1024) { 01202 ast_log(LOG_WARNING, "Ports under 1024 are not allowed for T.38.\n"); 01203 udptlend = 1024; 01204 } 01205 if (udptlend > 65535) { 01206 ast_log(LOG_WARNING, "Ports over 65535 are invalid.\n"); 01207 udptlend = 65535; 01208 } 01209 } 01210 if ((s = ast_variable_retrieve(cfg, "general", "udptlchecksums"))) { 01211 #ifdef SO_NO_CHECK 01212 if (ast_false(s)) 01213 nochecksums = 1; 01214 else 01215 nochecksums = 0; 01216 #else 01217 if (ast_false(s)) 01218 ast_log(LOG_WARNING, "Disabling UDPTL checksums is not supported on this operating system!\n"); 01219 #endif 01220 } 01221 if ((s = ast_variable_retrieve(cfg, "general", "T38FaxUdpEC"))) { 01222 if (strcmp(s, "t38UDPFEC") == 0) 01223 udptlfectype = 2; 01224 else if (strcmp(s, "t38UDPRedundancy") == 0) 01225 udptlfectype = 1; 01226 } 01227 if ((s = ast_variable_retrieve(cfg, "general", "T38FaxMaxDatagram"))) { 01228 udptlmaxdatagram = atoi(s); 01229 if (udptlmaxdatagram < 100) { 01230 ast_log(LOG_WARNING, "Too small T38FaxMaxDatagram size. Defaulting to 100.\n"); 01231 udptlmaxdatagram = 100; 01232 } 01233 if (udptlmaxdatagram > LOCAL_FAX_MAX_DATAGRAM) { 01234 ast_log(LOG_WARNING, "Too large T38FaxMaxDatagram size. Defaulting to %d.\n", LOCAL_FAX_MAX_DATAGRAM); 01235 udptlmaxdatagram = LOCAL_FAX_MAX_DATAGRAM; 01236 } 01237 } 01238 if ((s = ast_variable_retrieve(cfg, "general", "UDPTLFECentries"))) { 01239 udptlfecentries = atoi(s); 01240 if (udptlfecentries < 1) { 01241 ast_log(LOG_WARNING, "Too small UDPTLFECentries value. Defaulting to 1.\n"); 01242 udptlfecentries = 1; 01243 } 01244 if (udptlfecentries > MAX_FEC_ENTRIES) { 01245 ast_log(LOG_WARNING, "Too large UDPTLFECentries value. Defaulting to %d.\n", MAX_FEC_ENTRIES); 01246 udptlfecentries = MAX_FEC_ENTRIES; 01247 } 01248 } 01249 if ((s = ast_variable_retrieve(cfg, "general", "UDPTLFECspan"))) { 01250 udptlfecspan = atoi(s); 01251 if (udptlfecspan < 1) { 01252 ast_log(LOG_WARNING, "Too small UDPTLFECspan value. Defaulting to 1.\n"); 01253 udptlfecspan = 1; 01254 } 01255 if (udptlfecspan > MAX_FEC_SPAN) { 01256 ast_log(LOG_WARNING, "Too large UDPTLFECspan value. Defaulting to %d.\n", MAX_FEC_SPAN); 01257 udptlfecspan = MAX_FEC_SPAN; 01258 } 01259 } 01260 ast_config_destroy(cfg); 01261 } 01262 if (udptlstart >= udptlend) { 01263 ast_log(LOG_WARNING, "Unreasonable values for UDPTL start/end\n"); 01264 udptlstart = 4500; 01265 udptlend = 4999; 01266 } 01267 if (option_verbose > 1) 01268 ast_verbose(VERBOSE_PREFIX_2 "UDPTL allocating from port range %d -> %d\n", udptlstart, udptlend); 01269 }
void ast_udptl_reset | ( | struct ast_udptl * | udptl | ) |
void ast_udptl_set_callback | ( | struct ast_udptl * | udptl, | |
ast_udptl_callback | callback | |||
) |
Definition at line 605 of file udptl.c.
References ast_udptl::callback.
00606 { 00607 udptl->callback = callback; 00608 }
void ast_udptl_set_data | ( | struct ast_udptl * | udptl, | |
void * | data | |||
) |
Definition at line 600 of file udptl.c.
References ast_udptl::data.
00601 { 00602 udptl->data = data; 00603 }
void ast_udptl_set_error_correction_scheme | ( | struct ast_udptl * | udptl, | |
int | ec | |||
) |
Definition at line 696 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(), and sip_handle_t38_reinvite().
00697 { 00698 if (udptl) { 00699 switch (ec) { 00700 case UDPTL_ERROR_CORRECTION_FEC: 00701 udptl->error_correction_scheme = UDPTL_ERROR_CORRECTION_FEC; 00702 break; 00703 case UDPTL_ERROR_CORRECTION_REDUNDANCY: 00704 udptl->error_correction_scheme = UDPTL_ERROR_CORRECTION_REDUNDANCY; 00705 break; 00706 case UDPTL_ERROR_CORRECTION_NONE: 00707 udptl->error_correction_scheme = UDPTL_ERROR_CORRECTION_NONE; 00708 break; 00709 default: 00710 ast_log(LOG_WARNING, "error correction parameter invalid\n"); 00711 }; 00712 } else 00713 ast_log(LOG_WARNING, "udptl structure is null\n"); 00714 }
void ast_udptl_set_far_max_datagram | ( | struct ast_udptl * | udptl, | |
int | max_datagram | |||
) |
Definition at line 744 of file udptl.c.
References ast_log(), ast_udptl::far_max_datagram_size, and LOG_WARNING.
Referenced by process_sdp(), and sip_handle_t38_reinvite().
00745 { 00746 if (udptl) 00747 udptl->far_max_datagram_size = max_datagram; 00748 else 00749 ast_log(LOG_WARNING, "udptl structure is null\n"); 00750 }
void ast_udptl_set_local_max_datagram | ( | struct ast_udptl * | udptl, | |
int | max_datagram | |||
) |
Definition at line 736 of file udptl.c.
References ast_log(), ast_udptl::local_max_datagram_size, and LOG_WARNING.
Referenced by process_sdp(), and sip_handle_t38_reinvite().
00737 { 00738 if (udptl) 00739 udptl->local_max_datagram_size = max_datagram; 00740 else 00741 ast_log(LOG_WARNING, "udptl structure is null\n"); 00742 }
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 844 of file udptl.c.
References ast_udptl::them.
Referenced by process_sdp().
00845 { 00846 udptl->them.sin_port = them->sin_port; 00847 udptl->them.sin_addr = them->sin_addr; 00848 }
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 835 of file udptl.c.
References ast_log(), ast_udptl::fd, and LOG_WARNING.
Referenced by sip_alloc().
00836 { 00837 int res; 00838 00839 if ((res = setsockopt(udptl->fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos)))) 00840 ast_log(LOG_WARNING, "UDPTL unable to set TOS to %d\n", tos); 00841 return res; 00842 }
void ast_udptl_stop | ( | struct ast_udptl * | udptl | ) |
Definition at line 863 of file udptl.c.
References ast_udptl::them.
Referenced by process_sdp(), and stop_media_flows().
00864 { 00865 memset(&udptl->them.sin_addr, 0, sizeof(udptl->them.sin_addr)); 00866 memset(&udptl->them.sin_port, 0, sizeof(udptl->them.sin_port)); 00867 }
Definition at line 878 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().
00879 { 00880 int seq; 00881 int len; 00882 int res; 00883 uint8_t buf[LOCAL_FAX_MAX_DATAGRAM * 2]; 00884 00885 /* If we have no peer, return immediately */ 00886 if (s->them.sin_addr.s_addr == INADDR_ANY) 00887 return 0; 00888 00889 /* If there is no data length, return immediately */ 00890 if (f->datalen == 0) 00891 return 0; 00892 00893 if (f->frametype != AST_FRAME_MODEM) { 00894 ast_log(LOG_WARNING, "UDPTL can only send T.38 data\n"); 00895 return -1; 00896 } 00897 00898 /* Save seq_no for debug output because udptl_build_packet increments it */ 00899 seq = s->tx_seq_no & 0xFFFF; 00900 00901 /* Cook up the UDPTL packet, with the relevant EC info. */ 00902 len = udptl_build_packet(s, buf, sizeof(buf), f->data, f->datalen); 00903 00904 if (len > 0 && s->them.sin_port && s->them.sin_addr.s_addr) { 00905 if ((res = sendto(s->fd, buf, len, 0, (struct sockaddr *) &s->them, sizeof(s->them))) < 0) 00906 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)); 00907 #if 0 00908 printf("Sent %d bytes of UDPTL data to %s:%d\n", res, ast_inet_ntoa(udptl->them.sin_addr), ntohs(udptl->them.sin_port)); 00909 #endif 00910 if (udptl_debug_test_addr(&s->them)) 00911 ast_verbose("Sent UDPTL packet to %s:%d (type %d, seq %d, len %d)\n", 00912 ast_inet_ntoa(s->them.sin_addr), 00913 ntohs(s->them.sin_port), 0, seq, len); 00914 } 00915 00916 return 0; 00917 }