#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 961 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.
00962 { 00963 struct ast_frame *f; 00964 struct ast_channel *who; 00965 struct ast_channel *cs[3]; 00966 struct ast_udptl *p0; 00967 struct ast_udptl *p1; 00968 struct ast_udptl_protocol *pr0; 00969 struct ast_udptl_protocol *pr1; 00970 struct sockaddr_in ac0; 00971 struct sockaddr_in ac1; 00972 struct sockaddr_in t0; 00973 struct sockaddr_in t1; 00974 void *pvt0; 00975 void *pvt1; 00976 int to; 00977 00978 ast_channel_lock(c0); 00979 while (ast_channel_trylock(c1)) { 00980 ast_channel_unlock(c0); 00981 usleep(1); 00982 ast_channel_lock(c0); 00983 } 00984 pr0 = get_proto(c0); 00985 pr1 = get_proto(c1); 00986 if (!pr0) { 00987 ast_log(LOG_WARNING, "Can't find native functions for channel '%s'\n", c0->name); 00988 ast_channel_unlock(c0); 00989 ast_channel_unlock(c1); 00990 return -1; 00991 } 00992 if (!pr1) { 00993 ast_log(LOG_WARNING, "Can't find native functions for channel '%s'\n", c1->name); 00994 ast_channel_unlock(c0); 00995 ast_channel_unlock(c1); 00996 return -1; 00997 } 00998 pvt0 = c0->tech_pvt; 00999 pvt1 = c1->tech_pvt; 01000 p0 = pr0->get_udptl_info(c0); 01001 p1 = pr1->get_udptl_info(c1); 01002 if (!p0 || !p1) { 01003 /* Somebody doesn't want to play... */ 01004 ast_channel_unlock(c0); 01005 ast_channel_unlock(c1); 01006 return -2; 01007 } 01008 if (pr0->set_udptl_peer(c0, p1)) { 01009 ast_log(LOG_WARNING, "Channel '%s' failed to talk to '%s'\n", c0->name, c1->name); 01010 memset(&ac1, 0, sizeof(ac1)); 01011 } else { 01012 /* Store UDPTL peer */ 01013 ast_udptl_get_peer(p1, &ac1); 01014 } 01015 if (pr1->set_udptl_peer(c1, p0)) { 01016 ast_log(LOG_WARNING, "Channel '%s' failed to talk back to '%s'\n", c1->name, c0->name); 01017 memset(&ac0, 0, sizeof(ac0)); 01018 } else { 01019 /* Store UDPTL peer */ 01020 ast_udptl_get_peer(p0, &ac0); 01021 } 01022 ast_channel_unlock(c0); 01023 ast_channel_unlock(c1); 01024 cs[0] = c0; 01025 cs[1] = c1; 01026 cs[2] = NULL; 01027 for (;;) { 01028 if ((c0->tech_pvt != pvt0) || 01029 (c1->tech_pvt != pvt1) || 01030 (c0->masq || c0->masqr || c1->masq || c1->masqr)) { 01031 ast_log(LOG_DEBUG, "Oooh, something is weird, backing out\n"); 01032 /* Tell it to try again later */ 01033 return -3; 01034 } 01035 to = -1; 01036 ast_udptl_get_peer(p1, &t1); 01037 ast_udptl_get_peer(p0, &t0); 01038 if (inaddrcmp(&t1, &ac1)) { 01039 ast_log(LOG_DEBUG, "Oooh, '%s' changed end address to %s:%d\n", 01040 c1->name, ast_inet_ntoa(t1.sin_addr), ntohs(t1.sin_port)); 01041 ast_log(LOG_DEBUG, "Oooh, '%s' was %s:%d\n", 01042 c1->name, ast_inet_ntoa(ac1.sin_addr), ntohs(ac1.sin_port)); 01043 memcpy(&ac1, &t1, sizeof(ac1)); 01044 } 01045 if (inaddrcmp(&t0, &ac0)) { 01046 ast_log(LOG_DEBUG, "Oooh, '%s' changed end address to %s:%d\n", 01047 c0->name, ast_inet_ntoa(t0.sin_addr), ntohs(t0.sin_port)); 01048 ast_log(LOG_DEBUG, "Oooh, '%s' was %s:%d\n", 01049 c0->name, ast_inet_ntoa(ac0.sin_addr), ntohs(ac0.sin_port)); 01050 memcpy(&ac0, &t0, sizeof(ac0)); 01051 } 01052 who = ast_waitfor_n(cs, 2, &to); 01053 if (!who) { 01054 ast_log(LOG_DEBUG, "Ooh, empty read...\n"); 01055 /* check for hangup / whentohangup */ 01056 if (ast_check_hangup(c0) || ast_check_hangup(c1)) 01057 break; 01058 continue; 01059 } 01060 f = ast_read(who); 01061 if (!f) { 01062 *fo = f; 01063 *rc = who; 01064 ast_log(LOG_DEBUG, "Oooh, got a %s\n", f ? "digit" : "hangup"); 01065 /* That's all we needed */ 01066 return 0; 01067 } else { 01068 if (f->frametype == AST_FRAME_MODEM) { 01069 /* Forward T.38 frames if they happen upon us */ 01070 if (who == c0) { 01071 ast_write(c1, f); 01072 } else if (who == c1) { 01073 ast_write(c0, f); 01074 } 01075 } 01076 ast_frfree(f); 01077 } 01078 /* Swap priority. Not that it's a big deal at this point */ 01079 cs[2] = cs[0]; 01080 cs[0] = cs[1]; 01081 cs[1] = cs[2]; 01082 } 01083 return -1; 01084 }
void ast_udptl_destroy | ( | struct ast_udptl * | udptl | ) |
Definition at line 861 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().
00862 { 00863 if (udptl->ioid) 00864 ast_io_remove(udptl->io, udptl->ioid); 00865 if (udptl->fd > -1) 00866 close(udptl->fd); 00867 free(udptl); 00868 }
int ast_udptl_fd | ( | struct ast_udptl * | udptl | ) |
Definition at line 587 of file udptl.c.
References ast_udptl::fd.
Referenced by __oh323_new(), and sip_new().
00588 { 00589 return udptl->fd; 00590 }
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 678 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().
00679 { 00680 if (udptl) 00681 return udptl->error_correction_scheme; 00682 else { 00683 ast_log(LOG_WARNING, "udptl structure is null\n"); 00684 return -1; 00685 } 00686 }
int ast_udptl_get_far_max_datagram | ( | struct ast_udptl * | udptl | ) |
Definition at line 718 of file udptl.c.
References ast_log(), ast_udptl::far_max_datagram_size, and LOG_WARNING.
00719 { 00720 if (udptl) 00721 return udptl->far_max_datagram_size; 00722 else { 00723 ast_log(LOG_WARNING, "udptl structure is null\n"); 00724 return -1; 00725 } 00726 }
int ast_udptl_get_local_max_datagram | ( | struct ast_udptl * | udptl | ) |
Definition at line 708 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().
00709 { 00710 if (udptl) 00711 return udptl->local_max_datagram_size; 00712 else { 00713 ast_log(LOG_WARNING, "udptl structure is null\n"); 00714 return -1; 00715 } 00716 }
void ast_udptl_get_peer | ( | struct ast_udptl * | udptl, | |
struct sockaddr_in * | them | |||
) |
Definition at line 842 of file udptl.c.
References ast_udptl::them.
Referenced by ast_udptl_bridge(), sip_handle_t38_reinvite(), and sip_set_udptl_peer().
00843 { 00844 memset(them, 0, sizeof(*them)); 00845 them->sin_family = AF_INET; 00846 them->sin_port = udptl->them.sin_port; 00847 them->sin_addr = udptl->them.sin_addr; 00848 }
void ast_udptl_get_us | ( | struct ast_udptl * | udptl, | |
struct sockaddr_in * | us | |||
) |
void ast_udptl_init | ( | void | ) |
Definition at line 1243 of file udptl.c.
References ast_cli_register_multiple(), ast_udptl_reload(), and cli_udptl.
Referenced by main().
01244 { 01245 ast_cli_register_multiple(cli_udptl, sizeof(cli_udptl) / sizeof(struct ast_cli_entry)); 01246 ast_udptl_reload(); 01247 }
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 820 of file udptl.c.
References ast_udptl_new_with_bindaddr(), io, and sched.
00821 { 00822 struct in_addr ia; 00823 memset(&ia, 0, sizeof(ia)); 00824 return ast_udptl_new_with_bindaddr(sched, io, callbackmode, ia); 00825 }
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 744 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().
00745 { 00746 struct ast_udptl *udptl; 00747 int x; 00748 int startplace; 00749 int i; 00750 long int flags; 00751 00752 if (!(udptl = ast_calloc(1, sizeof(*udptl)))) 00753 return NULL; 00754 00755 if (udptlfectype == 2) 00756 udptl->error_correction_scheme = UDPTL_ERROR_CORRECTION_FEC; 00757 else if (udptlfectype == 1) 00758 udptl->error_correction_scheme = UDPTL_ERROR_CORRECTION_REDUNDANCY; 00759 else 00760 udptl->error_correction_scheme = UDPTL_ERROR_CORRECTION_NONE; 00761 udptl->error_correction_span = udptlfecspan; 00762 udptl->error_correction_entries = udptlfecentries; 00763 00764 udptl->far_max_datagram_size = udptlmaxdatagram; 00765 udptl->local_max_datagram_size = udptlmaxdatagram; 00766 00767 memset(&udptl->rx, 0, sizeof(udptl->rx)); 00768 memset(&udptl->tx, 0, sizeof(udptl->tx)); 00769 for (i = 0; i <= UDPTL_BUF_MASK; i++) { 00770 udptl->rx[i].buf_len = -1; 00771 udptl->tx[i].buf_len = -1; 00772 } 00773 00774 udptl->them.sin_family = AF_INET; 00775 udptl->us.sin_family = AF_INET; 00776 00777 if ((udptl->fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { 00778 free(udptl); 00779 ast_log(LOG_WARNING, "Unable to allocate socket: %s\n", strerror(errno)); 00780 return NULL; 00781 } 00782 flags = fcntl(udptl->fd, F_GETFL); 00783 fcntl(udptl->fd, F_SETFL, flags | O_NONBLOCK); 00784 #ifdef SO_NO_CHECK 00785 if (nochecksums) 00786 setsockopt(udptl->fd, SOL_SOCKET, SO_NO_CHECK, &nochecksums, sizeof(nochecksums)); 00787 #endif 00788 /* Find us a place */ 00789 x = (ast_random() % (udptlend - udptlstart)) + udptlstart; 00790 startplace = x; 00791 for (;;) { 00792 udptl->us.sin_port = htons(x); 00793 udptl->us.sin_addr = addr; 00794 if (bind(udptl->fd, (struct sockaddr *) &udptl->us, sizeof(udptl->us)) == 0) 00795 break; 00796 if (errno != EADDRINUSE) { 00797 ast_log(LOG_WARNING, "Unexpected bind error: %s\n", strerror(errno)); 00798 close(udptl->fd); 00799 free(udptl); 00800 return NULL; 00801 } 00802 if (++x > udptlend) 00803 x = udptlstart; 00804 if (x == startplace) { 00805 ast_log(LOG_WARNING, "No UDPTL ports remaining\n"); 00806 close(udptl->fd); 00807 free(udptl); 00808 return NULL; 00809 } 00810 } 00811 if (io && sched && callbackmode) { 00812 /* Operate this one in a callback mode */ 00813 udptl->sched = sched; 00814 udptl->io = io; 00815 udptl->ioid = ast_io_add(udptl->io, udptl->fd, udptlread, AST_IO_IN, udptl); 00816 } 00817 return udptl; 00818 }
void ast_udptl_offered_from_local | ( | struct ast_udptl * | udptl, | |
int | local | |||
) |
Definition at line 670 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().
00671 { 00672 if (udptl) 00673 udptl->udptl_offered_from_local = local; 00674 else 00675 ast_log(LOG_WARNING, "udptl structure is null\n"); 00676 }
int ast_udptl_proto_register | ( | struct ast_udptl_protocol * | proto | ) |
Definition at line 931 of file udptl.c.
References ast_log(), LOG_WARNING, ast_udptl_protocol::next, protos, and ast_udptl_protocol::type.
Referenced by load_module().
00932 { 00933 struct ast_udptl_protocol *cur; 00934 00935 cur = protos; 00936 while (cur) { 00937 if (cur->type == proto->type) { 00938 ast_log(LOG_WARNING, "Tried to register same protocol '%s' twice\n", cur->type); 00939 return -1; 00940 } 00941 cur = cur->next; 00942 } 00943 proto->next = protos; 00944 protos = proto; 00945 return 0; 00946 }
void ast_udptl_proto_unregister | ( | struct ast_udptl_protocol * | proto | ) |
Definition at line 911 of file udptl.c.
References ast_udptl_protocol::next, and protos.
Referenced by unload_module().
00912 { 00913 struct ast_udptl_protocol *cur; 00914 struct ast_udptl_protocol *prev; 00915 00916 cur = protos; 00917 prev = NULL; 00918 while (cur) { 00919 if (cur == proto) { 00920 if (prev) 00921 prev->next = proto->next; 00922 else 00923 protos = proto->next; 00924 return; 00925 } 00926 prev = cur; 00927 cur = cur->next; 00928 } 00929 }
Definition at line 619 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().
00620 { 00621 int res; 00622 struct sockaddr_in sin; 00623 socklen_t len; 00624 uint16_t seqno = 0; 00625 uint16_t *udptlheader; 00626 00627 len = sizeof(sin); 00628 00629 /* Cache where the header will go */ 00630 res = recvfrom(udptl->fd, 00631 udptl->rawdata + AST_FRIENDLY_OFFSET, 00632 sizeof(udptl->rawdata) - AST_FRIENDLY_OFFSET, 00633 0, 00634 (struct sockaddr *) &sin, 00635 &len); 00636 udptlheader = (uint16_t *)(udptl->rawdata + AST_FRIENDLY_OFFSET); 00637 if (res < 0) { 00638 if (errno != EAGAIN) 00639 ast_log(LOG_WARNING, "UDPTL read error: %s\n", strerror(errno)); 00640 ast_assert(errno != EBADF); 00641 return &ast_null_frame; 00642 } 00643 00644 /* Ignore if the other side hasn't been given an address yet. */ 00645 if (!udptl->them.sin_addr.s_addr || !udptl->them.sin_port) 00646 return &ast_null_frame; 00647 00648 if (udptl->nat) { 00649 /* Send to whoever sent to us */ 00650 if ((udptl->them.sin_addr.s_addr != sin.sin_addr.s_addr) || 00651 (udptl->them.sin_port != sin.sin_port)) { 00652 memcpy(&udptl->them, &sin, sizeof(udptl->them)); 00653 ast_log(LOG_DEBUG, "UDPTL NAT: Using address %s:%d\n", ast_inet_ntoa(udptl->them.sin_addr), ntohs(udptl->them.sin_port)); 00654 } 00655 } 00656 00657 if (udptl_debug_test_addr(&sin)) { 00658 ast_verbose("Got UDPTL packet from %s:%d (type %d, seq %d, len %d)\n", 00659 ast_inet_ntoa(sin.sin_addr), ntohs(sin.sin_port), 0, seqno, res); 00660 } 00661 #if 0 00662 printf("Got UDPTL packet from %s:%d (seq %d, len = %d)\n", ast_inet_ntoa(sin.sin_addr), ntohs(sin.sin_port), seqno, res); 00663 #endif 00664 if (udptl_rx_packet(udptl, udptl->rawdata + AST_FRIENDLY_OFFSET, res) < 1) 00665 return &ast_null_frame; 00666 00667 return &udptl->f[0]; 00668 }
void ast_udptl_reload | ( | void | ) |
Definition at line 1167 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().
01168 { 01169 struct ast_config *cfg; 01170 const char *s; 01171 01172 udptlstart = 4500; 01173 udptlend = 4999; 01174 udptlfectype = 0; 01175 udptlfecentries = 0; 01176 udptlfecspan = 0; 01177 udptlmaxdatagram = 0; 01178 01179 if ((cfg = ast_config_load("udptl.conf"))) { 01180 if ((s = ast_variable_retrieve(cfg, "general", "udptlstart"))) { 01181 udptlstart = atoi(s); 01182 if (udptlstart < 1024) 01183 udptlstart = 1024; 01184 if (udptlstart > 65535) 01185 udptlstart = 65535; 01186 } 01187 if ((s = ast_variable_retrieve(cfg, "general", "udptlend"))) { 01188 udptlend = atoi(s); 01189 if (udptlend < 1024) 01190 udptlend = 1024; 01191 if (udptlend > 65535) 01192 udptlend = 65535; 01193 } 01194 if ((s = ast_variable_retrieve(cfg, "general", "udptlchecksums"))) { 01195 #ifdef SO_NO_CHECK 01196 if (ast_false(s)) 01197 nochecksums = 1; 01198 else 01199 nochecksums = 0; 01200 #else 01201 if (ast_false(s)) 01202 ast_log(LOG_WARNING, "Disabling UDPTL checksums is not supported on this operating system!\n"); 01203 #endif 01204 } 01205 if ((s = ast_variable_retrieve(cfg, "general", "T38FaxUdpEC"))) { 01206 if (strcmp(s, "t38UDPFEC") == 0) 01207 udptlfectype = 2; 01208 else if (strcmp(s, "t38UDPRedundancy") == 0) 01209 udptlfectype = 1; 01210 } 01211 if ((s = ast_variable_retrieve(cfg, "general", "T38FaxMaxDatagram"))) { 01212 udptlmaxdatagram = atoi(s); 01213 if (udptlmaxdatagram < 0) 01214 udptlmaxdatagram = 0; 01215 if (udptlmaxdatagram > LOCAL_FAX_MAX_DATAGRAM) 01216 udptlmaxdatagram = LOCAL_FAX_MAX_DATAGRAM; 01217 } 01218 if ((s = ast_variable_retrieve(cfg, "general", "UDPTLFECentries"))) { 01219 udptlfecentries = atoi(s); 01220 if (udptlfecentries < 0) 01221 udptlfecentries = 0; 01222 if (udptlfecentries > MAX_FEC_ENTRIES) 01223 udptlfecentries = MAX_FEC_ENTRIES; 01224 } 01225 if ((s = ast_variable_retrieve(cfg, "general", "UDPTLFECspan"))) { 01226 udptlfecspan = atoi(s); 01227 if (udptlfecspan < 0) 01228 udptlfecspan = 0; 01229 if (udptlfecspan > MAX_FEC_SPAN) 01230 udptlfecspan = MAX_FEC_SPAN; 01231 } 01232 ast_config_destroy(cfg); 01233 } 01234 if (udptlstart >= udptlend) { 01235 ast_log(LOG_WARNING, "Unreasonable values for UDPTL start/end\n"); 01236 udptlstart = 4500; 01237 udptlend = 4999; 01238 } 01239 if (option_verbose > 1) 01240 ast_verbose(VERBOSE_PREFIX_2 "UDPTL allocating from port range %d -> %d\n", udptlstart, udptlend); 01241 }
void ast_udptl_reset | ( | struct ast_udptl * | udptl | ) |
void ast_udptl_set_callback | ( | struct ast_udptl * | udptl, | |
ast_udptl_callback | callback | |||
) |
Definition at line 597 of file udptl.c.
References ast_udptl::callback.
00598 { 00599 udptl->callback = callback; 00600 }
void ast_udptl_set_data | ( | struct ast_udptl * | udptl, | |
void * | data | |||
) |
Definition at line 592 of file udptl.c.
References ast_udptl::data.
00593 { 00594 udptl->data = data; 00595 }
void ast_udptl_set_error_correction_scheme | ( | struct ast_udptl * | udptl, | |
int | ec | |||
) |
Definition at line 688 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().
00689 { 00690 if (udptl) { 00691 switch (ec) { 00692 case UDPTL_ERROR_CORRECTION_FEC: 00693 udptl->error_correction_scheme = UDPTL_ERROR_CORRECTION_FEC; 00694 break; 00695 case UDPTL_ERROR_CORRECTION_REDUNDANCY: 00696 udptl->error_correction_scheme = UDPTL_ERROR_CORRECTION_REDUNDANCY; 00697 break; 00698 case UDPTL_ERROR_CORRECTION_NONE: 00699 udptl->error_correction_scheme = UDPTL_ERROR_CORRECTION_NONE; 00700 break; 00701 default: 00702 ast_log(LOG_WARNING, "error correction parameter invalid\n"); 00703 }; 00704 } else 00705 ast_log(LOG_WARNING, "udptl structure is null\n"); 00706 }
void ast_udptl_set_far_max_datagram | ( | struct ast_udptl * | udptl, | |
int | max_datagram | |||
) |
Definition at line 736 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().
00737 { 00738 if (udptl) 00739 udptl->far_max_datagram_size = max_datagram; 00740 else 00741 ast_log(LOG_WARNING, "udptl structure is null\n"); 00742 }
void ast_udptl_set_local_max_datagram | ( | struct ast_udptl * | udptl, | |
int | max_datagram | |||
) |
Definition at line 728 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().
00729 { 00730 if (udptl) 00731 udptl->local_max_datagram_size = max_datagram; 00732 else 00733 ast_log(LOG_WARNING, "udptl structure is null\n"); 00734 }
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 836 of file udptl.c.
References ast_udptl::them.
Referenced by process_sdp().
00837 { 00838 udptl->them.sin_port = them->sin_port; 00839 udptl->them.sin_addr = them->sin_addr; 00840 }
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 827 of file udptl.c.
References ast_log(), ast_udptl::fd, and LOG_WARNING.
Referenced by sip_alloc().
00828 { 00829 int res; 00830 00831 if ((res = setsockopt(udptl->fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos)))) 00832 ast_log(LOG_WARNING, "UDPTL unable to set TOS to %d\n", tos); 00833 return res; 00834 }
void ast_udptl_stop | ( | struct ast_udptl * | udptl | ) |
Definition at line 855 of file udptl.c.
References ast_udptl::them.
Referenced by process_sdp(), and stop_media_flows().
00856 { 00857 memset(&udptl->them.sin_addr, 0, sizeof(udptl->them.sin_addr)); 00858 memset(&udptl->them.sin_port, 0, sizeof(udptl->them.sin_port)); 00859 }
Definition at line 870 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().
00871 { 00872 int seq; 00873 int len; 00874 int res; 00875 uint8_t buf[LOCAL_FAX_MAX_DATAGRAM]; 00876 00877 /* If we have no peer, return immediately */ 00878 if (s->them.sin_addr.s_addr == INADDR_ANY) 00879 return 0; 00880 00881 /* If there is no data length, return immediately */ 00882 if (f->datalen == 0) 00883 return 0; 00884 00885 if (f->frametype != AST_FRAME_MODEM) { 00886 ast_log(LOG_WARNING, "UDPTL can only send T.38 data\n"); 00887 return -1; 00888 } 00889 00890 /* Save seq_no for debug output because udptl_build_packet increments it */ 00891 seq = s->tx_seq_no & 0xFFFF; 00892 00893 /* Cook up the UDPTL packet, with the relevant EC info. */ 00894 len = udptl_build_packet(s, buf, f->data, f->datalen); 00895 00896 if (len > 0 && s->them.sin_port && s->them.sin_addr.s_addr) { 00897 if ((res = sendto(s->fd, buf, len, 0, (struct sockaddr *) &s->them, sizeof(s->them))) < 0) 00898 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)); 00899 #if 0 00900 printf("Sent %d bytes of UDPTL data to %s:%d\n", res, ast_inet_ntoa(udptl->them.sin_addr), ntohs(udptl->them.sin_port)); 00901 #endif 00902 if (udptl_debug_test_addr(&s->them)) 00903 ast_verbose("Sent UDPTL packet to %s:%d (type %d, seq %d, len %d)\n", 00904 ast_inet_ntoa(s->them.sin_addr), 00905 ntohs(s->them.sin_port), 0, seq, len); 00906 } 00907 00908 return 0; 00909 }