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https://github.com/asterisk/asterisk.git
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Merge in the bridge_construction branch to make the system use the Bridging API.
Breaks many things until they can be reworked. A partial list: chan_agent chan_dahdi, chan_misdn, chan_iax2 native bridging app_queue COLP updates DTMF attended transfers Protocol attended transfers git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@389378 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Richard Mudgett
@@ -928,497 +928,6 @@ struct ast_rtp_glue *ast_rtp_instance_get_glue(const char *type)
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return glue;
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}
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static enum ast_bridge_result local_bridge_loop(struct ast_channel *c0, struct ast_channel *c1, struct ast_rtp_instance *instance0, struct ast_rtp_instance *instance1, int timeoutms, int flags, struct ast_frame **fo, struct ast_channel **rc, void *pvt0, void *pvt1)
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{
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enum ast_bridge_result res = AST_BRIDGE_FAILED;
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struct ast_channel *who = NULL, *other = NULL, *cs[3] = { NULL, };
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struct ast_frame *fr = NULL;
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struct timeval start;
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/* Start locally bridging both instances */
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if (instance0->engine->local_bridge && instance0->engine->local_bridge(instance0, instance1)) {
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ast_debug(1, "Failed to locally bridge %s to %s, backing out.\n", ast_channel_name(c0), ast_channel_name(c1));
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ast_channel_unlock(c0);
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ast_channel_unlock(c1);
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return AST_BRIDGE_FAILED_NOWARN;
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}
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if (instance1->engine->local_bridge && instance1->engine->local_bridge(instance1, instance0)) {
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ast_debug(1, "Failed to locally bridge %s to %s, backing out.\n", ast_channel_name(c1), ast_channel_name(c0));
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if (instance0->engine->local_bridge) {
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instance0->engine->local_bridge(instance0, NULL);
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}
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ast_channel_unlock(c0);
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ast_channel_unlock(c1);
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return AST_BRIDGE_FAILED_NOWARN;
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}
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ast_channel_unlock(c0);
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ast_channel_unlock(c1);
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instance0->bridged = instance1;
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instance1->bridged = instance0;
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ast_poll_channel_add(c0, c1);
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/* Hop into a loop waiting for a frame from either channel */
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cs[0] = c0;
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cs[1] = c1;
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cs[2] = NULL;
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start = ast_tvnow();
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for (;;) {
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int ms;
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/* If the underlying formats have changed force this bridge to break */
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if ((ast_format_cmp(ast_channel_rawreadformat(c0), ast_channel_rawwriteformat(c1)) == AST_FORMAT_CMP_NOT_EQUAL) ||
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(ast_format_cmp(ast_channel_rawreadformat(c1), ast_channel_rawwriteformat(c0)) == AST_FORMAT_CMP_NOT_EQUAL)) {
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ast_debug(1, "rtp-engine-local-bridge: Oooh, formats changed, backing out\n");
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res = AST_BRIDGE_FAILED_NOWARN;
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break;
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}
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/* Check if anything changed */
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if ((ast_channel_tech_pvt(c0) != pvt0) ||
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(ast_channel_tech_pvt(c1) != pvt1) ||
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(ast_channel_masq(c0) || ast_channel_masqr(c0) || ast_channel_masq(c1) || ast_channel_masqr(c1)) ||
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(ast_channel_monitor(c0) || ast_channel_audiohooks(c0) || ast_channel_monitor(c1) || ast_channel_audiohooks(c1)) ||
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(!ast_framehook_list_is_empty(ast_channel_framehooks(c0)) || !ast_framehook_list_is_empty(ast_channel_framehooks(c1)))) {
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ast_debug(1, "rtp-engine-local-bridge: Oooh, something is weird, backing out\n");
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/* If a masquerade needs to happen we have to try to read in a frame so that it actually happens. Without this we risk being called again and going into a loop */
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if ((ast_channel_masq(c0) || ast_channel_masqr(c0)) && (fr = ast_read(c0))) {
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ast_frfree(fr);
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}
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if ((ast_channel_masq(c1) || ast_channel_masqr(c1)) && (fr = ast_read(c1))) {
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ast_frfree(fr);
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}
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res = AST_BRIDGE_RETRY;
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break;
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}
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/* Wait on a channel to feed us a frame */
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ms = ast_remaining_ms(start, timeoutms);
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if (!(who = ast_waitfor_n(cs, 2, &ms))) {
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if (!ms) {
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res = AST_BRIDGE_RETRY;
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break;
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}
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ast_debug(2, "rtp-engine-local-bridge: Ooh, empty read...\n");
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if (ast_check_hangup(c0) || ast_check_hangup(c1)) {
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break;
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}
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continue;
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}
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/* Read in frame from channel */
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fr = ast_read(who);
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other = (who == c0) ? c1 : c0;
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/* Depending on the frame we may need to break out of our bridge */
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if (!fr || ((fr->frametype == AST_FRAME_DTMF_BEGIN || fr->frametype == AST_FRAME_DTMF_END) &&
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((who == c0) && (flags & AST_BRIDGE_DTMF_CHANNEL_0)) |
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((who == c1) && (flags & AST_BRIDGE_DTMF_CHANNEL_1)))) {
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/* Record received frame and who */
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*fo = fr;
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*rc = who;
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ast_debug(1, "rtp-engine-local-bridge: Ooh, got a %s\n", fr ? "digit" : "hangup");
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res = AST_BRIDGE_COMPLETE;
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break;
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} else if ((fr->frametype == AST_FRAME_CONTROL) && !(flags & AST_BRIDGE_IGNORE_SIGS)) {
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if ((fr->subclass.integer == AST_CONTROL_HOLD) ||
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(fr->subclass.integer == AST_CONTROL_UNHOLD) ||
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(fr->subclass.integer == AST_CONTROL_VIDUPDATE) ||
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(fr->subclass.integer == AST_CONTROL_SRCUPDATE) ||
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(fr->subclass.integer == AST_CONTROL_T38_PARAMETERS) ||
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(fr->subclass.integer == AST_CONTROL_UPDATE_RTP_PEER)) {
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/* If we are going on hold, then break callback mode and P2P bridging */
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if (fr->subclass.integer == AST_CONTROL_HOLD) {
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if (instance0->engine->local_bridge) {
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instance0->engine->local_bridge(instance0, NULL);
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}
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if (instance1->engine->local_bridge) {
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instance1->engine->local_bridge(instance1, NULL);
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}
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instance0->bridged = NULL;
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instance1->bridged = NULL;
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} else if (fr->subclass.integer == AST_CONTROL_UNHOLD) {
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if (instance0->engine->local_bridge) {
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instance0->engine->local_bridge(instance0, instance1);
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}
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if (instance1->engine->local_bridge) {
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instance1->engine->local_bridge(instance1, instance0);
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}
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instance0->bridged = instance1;
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instance1->bridged = instance0;
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}
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/* Since UPDATE_BRIDGE_PEER is only used by the bridging code, don't forward it */
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if (fr->subclass.integer != AST_CONTROL_UPDATE_RTP_PEER) {
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ast_indicate_data(other, fr->subclass.integer, fr->data.ptr, fr->datalen);
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}
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ast_frfree(fr);
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} else if (fr->subclass.integer == AST_CONTROL_CONNECTED_LINE) {
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if (ast_channel_connected_line_sub(who, other, fr, 1) &&
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ast_channel_connected_line_macro(who, other, fr, other == c0, 1)) {
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ast_indicate_data(other, fr->subclass.integer, fr->data.ptr, fr->datalen);
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}
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ast_frfree(fr);
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} else if (fr->subclass.integer == AST_CONTROL_REDIRECTING) {
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if (ast_channel_redirecting_sub(who, other, fr, 1) &&
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ast_channel_redirecting_macro(who, other, fr, other == c0, 1)) {
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ast_indicate_data(other, fr->subclass.integer, fr->data.ptr, fr->datalen);
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}
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ast_frfree(fr);
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} else if (fr->subclass.integer == AST_CONTROL_PVT_CAUSE_CODE) {
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ast_channel_hangupcause_hash_set(other, fr->data.ptr, fr->datalen);
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ast_frfree(fr);
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} else {
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*fo = fr;
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*rc = who;
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ast_debug(1, "rtp-engine-local-bridge: Got a FRAME_CONTROL (%d) frame on channel %s\n", fr->subclass.integer, ast_channel_name(who));
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res = AST_BRIDGE_COMPLETE;
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break;
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}
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} else {
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if ((fr->frametype == AST_FRAME_DTMF_BEGIN) ||
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(fr->frametype == AST_FRAME_DTMF_END) ||
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(fr->frametype == AST_FRAME_VOICE) ||
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(fr->frametype == AST_FRAME_VIDEO) ||
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(fr->frametype == AST_FRAME_IMAGE) ||
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(fr->frametype == AST_FRAME_HTML) ||
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(fr->frametype == AST_FRAME_MODEM) ||
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(fr->frametype == AST_FRAME_TEXT)) {
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ast_write(other, fr);
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}
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ast_frfree(fr);
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}
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/* Swap priority */
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cs[2] = cs[0];
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cs[0] = cs[1];
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cs[1] = cs[2];
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}
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/* Stop locally bridging both instances */
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if (instance0->engine->local_bridge) {
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instance0->engine->local_bridge(instance0, NULL);
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}
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if (instance1->engine->local_bridge) {
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instance1->engine->local_bridge(instance1, NULL);
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}
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instance0->bridged = NULL;
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instance1->bridged = NULL;
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ast_poll_channel_del(c0, c1);
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return res;
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}
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static enum ast_bridge_result remote_bridge_loop(struct ast_channel *c0,
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struct ast_channel *c1,
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struct ast_rtp_instance *instance0,
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struct ast_rtp_instance *instance1,
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struct ast_rtp_instance *vinstance0,
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struct ast_rtp_instance *vinstance1,
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struct ast_rtp_instance *tinstance0,
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struct ast_rtp_instance *tinstance1,
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struct ast_rtp_glue *glue0,
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struct ast_rtp_glue *glue1,
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struct ast_format_cap *cap0,
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struct ast_format_cap *cap1,
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int timeoutms,
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int flags,
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struct ast_frame **fo,
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struct ast_channel **rc,
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void *pvt0,
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void *pvt1)
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{
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enum ast_bridge_result res = AST_BRIDGE_FAILED;
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struct ast_channel *who = NULL, *other = NULL, *cs[3] = { NULL, };
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struct ast_format_cap *oldcap0 = ast_format_cap_dup(cap0);
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struct ast_format_cap *oldcap1 = ast_format_cap_dup(cap1);
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struct ast_sockaddr ac1 = {{0,}}, vac1 = {{0,}}, tac1 = {{0,}}, ac0 = {{0,}}, vac0 = {{0,}}, tac0 = {{0,}};
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struct ast_sockaddr t1 = {{0,}}, vt1 = {{0,}}, tt1 = {{0,}}, t0 = {{0,}}, vt0 = {{0,}}, tt0 = {{0,}};
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struct ast_frame *fr = NULL;
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struct timeval start;
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if (!oldcap0 || !oldcap1) {
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ast_channel_unlock(c0);
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ast_channel_unlock(c1);
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goto remote_bridge_cleanup;
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}
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/* Test the first channel */
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if (!(glue0->update_peer(c0, instance1, vinstance1, tinstance1, cap1, 0))) {
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ast_rtp_instance_get_remote_address(instance1, &ac1);
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if (vinstance1) {
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ast_rtp_instance_get_remote_address(vinstance1, &vac1);
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}
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if (tinstance1) {
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ast_rtp_instance_get_remote_address(tinstance1, &tac1);
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}
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} else {
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ast_log(LOG_WARNING, "Channel '%s' failed to talk to '%s'\n", ast_channel_name(c0), ast_channel_name(c1));
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}
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/* Test the second channel */
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if (!(glue1->update_peer(c1, instance0, vinstance0, tinstance0, cap0, 0))) {
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ast_rtp_instance_get_remote_address(instance0, &ac0);
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if (vinstance0) {
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ast_rtp_instance_get_remote_address(instance0, &vac0);
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}
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if (tinstance0) {
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ast_rtp_instance_get_remote_address(instance0, &tac0);
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}
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} else {
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ast_log(LOG_WARNING, "Channel '%s' failed to talk to '%s'\n", ast_channel_name(c1), ast_channel_name(c0));
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}
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ast_channel_unlock(c0);
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ast_channel_unlock(c1);
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instance0->bridged = instance1;
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instance1->bridged = instance0;
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ast_poll_channel_add(c0, c1);
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/* Go into a loop handling any stray frames that may come in */
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cs[0] = c0;
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cs[1] = c1;
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cs[2] = NULL;
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start = ast_tvnow();
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for (;;) {
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int ms;
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/* Check if anything changed */
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if ((ast_channel_tech_pvt(c0) != pvt0) ||
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(ast_channel_tech_pvt(c1) != pvt1) ||
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(ast_channel_masq(c0) || ast_channel_masqr(c0) || ast_channel_masq(c1) || ast_channel_masqr(c1)) ||
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(ast_channel_monitor(c0) || ast_channel_audiohooks(c0) || ast_channel_monitor(c1) || ast_channel_audiohooks(c1)) ||
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(!ast_framehook_list_is_empty(ast_channel_framehooks(c0)) || !ast_framehook_list_is_empty(ast_channel_framehooks(c1)))) {
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ast_debug(1, "Oooh, something is weird, backing out\n");
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res = AST_BRIDGE_RETRY;
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break;
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}
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/* Check if they have changed their address */
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ast_rtp_instance_get_remote_address(instance1, &t1);
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if (vinstance1) {
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ast_rtp_instance_get_remote_address(vinstance1, &vt1);
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}
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if (tinstance1) {
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ast_rtp_instance_get_remote_address(tinstance1, &tt1);
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}
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if (glue1->get_codec) {
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ast_format_cap_remove_all(cap1);
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glue1->get_codec(c1, cap1);
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}
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ast_rtp_instance_get_remote_address(instance0, &t0);
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if (vinstance0) {
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ast_rtp_instance_get_remote_address(vinstance0, &vt0);
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}
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if (tinstance0) {
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ast_rtp_instance_get_remote_address(tinstance0, &tt0);
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}
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if (glue0->get_codec) {
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ast_format_cap_remove_all(cap0);
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glue0->get_codec(c0, cap0);
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}
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if ((ast_sockaddr_cmp(&t1, &ac1)) ||
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(vinstance1 && ast_sockaddr_cmp(&vt1, &vac1)) ||
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(tinstance1 && ast_sockaddr_cmp(&tt1, &tac1)) ||
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(!ast_format_cap_identical(cap1, oldcap1))) {
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char tmp_buf[512] = { 0, };
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ast_debug(1, "Oooh, '%s' changed end address to %s (format %s)\n",
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ast_channel_name(c1), ast_sockaddr_stringify(&t1),
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ast_getformatname_multiple(tmp_buf, sizeof(tmp_buf), cap1));
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ast_debug(1, "Oooh, '%s' changed end vaddress to %s (format %s)\n",
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ast_channel_name(c1), ast_sockaddr_stringify(&vt1),
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ast_getformatname_multiple(tmp_buf, sizeof(tmp_buf), cap1));
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ast_debug(1, "Oooh, '%s' changed end taddress to %s (format %s)\n",
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ast_channel_name(c1), ast_sockaddr_stringify(&tt1),
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ast_getformatname_multiple(tmp_buf, sizeof(tmp_buf), cap1));
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ast_debug(1, "Oooh, '%s' was %s/(format %s)\n",
|
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ast_channel_name(c1), ast_sockaddr_stringify(&ac1),
|
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ast_getformatname_multiple(tmp_buf, sizeof(tmp_buf), oldcap1));
|
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ast_debug(1, "Oooh, '%s' was %s/(format %s)\n",
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ast_channel_name(c1), ast_sockaddr_stringify(&vac1),
|
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ast_getformatname_multiple(tmp_buf, sizeof(tmp_buf), oldcap1));
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ast_debug(1, "Oooh, '%s' was %s/(format %s)\n",
|
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ast_channel_name(c1), ast_sockaddr_stringify(&tac1),
|
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ast_getformatname_multiple(tmp_buf, sizeof(tmp_buf), oldcap1));
|
||||
if (glue0->update_peer(c0,
|
||||
ast_sockaddr_isnull(&t1) ? NULL : instance1,
|
||||
ast_sockaddr_isnull(&vt1) ? NULL : vinstance1,
|
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ast_sockaddr_isnull(&tt1) ? NULL : tinstance1,
|
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cap1, 0)) {
|
||||
ast_log(LOG_WARNING, "Channel '%s' failed to update to '%s'\n", ast_channel_name(c0), ast_channel_name(c1));
|
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}
|
||||
ast_sockaddr_copy(&ac1, &t1);
|
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ast_sockaddr_copy(&vac1, &vt1);
|
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ast_sockaddr_copy(&tac1, &tt1);
|
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ast_format_cap_copy(oldcap1, cap1);
|
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}
|
||||
if ((ast_sockaddr_cmp(&t0, &ac0)) ||
|
||||
(vinstance0 && ast_sockaddr_cmp(&vt0, &vac0)) ||
|
||||
(tinstance0 && ast_sockaddr_cmp(&tt0, &tac0)) ||
|
||||
(!ast_format_cap_identical(cap0, oldcap0))) {
|
||||
char tmp_buf[512] = { 0, };
|
||||
ast_debug(1, "Oooh, '%s' changed end address to %s (format %s)\n",
|
||||
ast_channel_name(c0), ast_sockaddr_stringify(&t0),
|
||||
ast_getformatname_multiple(tmp_buf, sizeof(tmp_buf), cap0));
|
||||
ast_debug(1, "Oooh, '%s' was %s/(format %s)\n",
|
||||
ast_channel_name(c0), ast_sockaddr_stringify(&ac0),
|
||||
ast_getformatname_multiple(tmp_buf, sizeof(tmp_buf), oldcap0));
|
||||
if (glue1->update_peer(c1, t0.len ? instance0 : NULL,
|
||||
vt0.len ? vinstance0 : NULL,
|
||||
tt0.len ? tinstance0 : NULL,
|
||||
cap0, 0)) {
|
||||
ast_log(LOG_WARNING, "Channel '%s' failed to update to '%s'\n", ast_channel_name(c1), ast_channel_name(c0));
|
||||
}
|
||||
ast_sockaddr_copy(&ac0, &t0);
|
||||
ast_sockaddr_copy(&vac0, &vt0);
|
||||
ast_sockaddr_copy(&tac0, &tt0);
|
||||
ast_format_cap_copy(oldcap0, cap0);
|
||||
}
|
||||
|
||||
ms = ast_remaining_ms(start, timeoutms);
|
||||
/* Wait for frame to come in on the channels */
|
||||
if (!(who = ast_waitfor_n(cs, 2, &ms))) {
|
||||
if (!ms) {
|
||||
res = AST_BRIDGE_RETRY;
|
||||
break;
|
||||
}
|
||||
ast_debug(1, "Ooh, empty read...\n");
|
||||
if (ast_check_hangup(c0) || ast_check_hangup(c1)) {
|
||||
break;
|
||||
}
|
||||
continue;
|
||||
}
|
||||
fr = ast_read(who);
|
||||
other = (who == c0) ? c1 : c0;
|
||||
if (!fr || ((fr->frametype == AST_FRAME_DTMF_BEGIN || fr->frametype == AST_FRAME_DTMF_END) &&
|
||||
(((who == c0) && (flags & AST_BRIDGE_DTMF_CHANNEL_0)) ||
|
||||
((who == c1) && (flags & AST_BRIDGE_DTMF_CHANNEL_1))))) {
|
||||
/* Break out of bridge */
|
||||
*fo = fr;
|
||||
*rc = who;
|
||||
ast_debug(1, "Oooh, got a %s\n", fr ? "digit" : "hangup");
|
||||
res = AST_BRIDGE_COMPLETE;
|
||||
break;
|
||||
} else if ((fr->frametype == AST_FRAME_CONTROL) && !(flags & AST_BRIDGE_IGNORE_SIGS)) {
|
||||
if ((fr->subclass.integer == AST_CONTROL_HOLD) ||
|
||||
(fr->subclass.integer == AST_CONTROL_UNHOLD) ||
|
||||
(fr->subclass.integer == AST_CONTROL_VIDUPDATE) ||
|
||||
(fr->subclass.integer == AST_CONTROL_SRCUPDATE) ||
|
||||
(fr->subclass.integer == AST_CONTROL_T38_PARAMETERS) ||
|
||||
(fr->subclass.integer == AST_CONTROL_UPDATE_RTP_PEER)) {
|
||||
if (fr->subclass.integer == AST_CONTROL_HOLD) {
|
||||
/* If we someone went on hold we want the other side to reinvite back to us */
|
||||
if (who == c0) {
|
||||
glue1->update_peer(c1, NULL, NULL, NULL, 0, 0);
|
||||
} else {
|
||||
glue0->update_peer(c0, NULL, NULL, NULL, 0, 0);
|
||||
}
|
||||
} else if (fr->subclass.integer == AST_CONTROL_UNHOLD ||
|
||||
fr->subclass.integer == AST_CONTROL_UPDATE_RTP_PEER) {
|
||||
/* If they went off hold they should go back to being direct, or if we have
|
||||
* been told to force a peer update, go ahead and do it. */
|
||||
if (who == c0) {
|
||||
glue1->update_peer(c1, instance0, vinstance0, tinstance0, cap0, 0);
|
||||
} else {
|
||||
glue0->update_peer(c0, instance1, vinstance1, tinstance1, cap1, 0);
|
||||
}
|
||||
}
|
||||
/* Update local address information */
|
||||
ast_rtp_instance_get_remote_address(instance0, &t0);
|
||||
ast_sockaddr_copy(&ac0, &t0);
|
||||
ast_rtp_instance_get_remote_address(instance1, &t1);
|
||||
ast_sockaddr_copy(&ac1, &t1);
|
||||
/* Update codec information */
|
||||
if (glue0->get_codec && ast_channel_tech_pvt(c0)) {
|
||||
ast_format_cap_remove_all(cap0);
|
||||
ast_format_cap_remove_all(oldcap0);
|
||||
glue0->get_codec(c0, cap0);
|
||||
ast_format_cap_append(oldcap0, cap0);
|
||||
|
||||
}
|
||||
if (glue1->get_codec && ast_channel_tech_pvt(c1)) {
|
||||
ast_format_cap_remove_all(cap1);
|
||||
ast_format_cap_remove_all(oldcap1);
|
||||
glue1->get_codec(c1, cap1);
|
||||
ast_format_cap_append(oldcap1, cap1);
|
||||
}
|
||||
/* Since UPDATE_BRIDGE_PEER is only used by the bridging code, don't forward it */
|
||||
if (fr->subclass.integer != AST_CONTROL_UPDATE_RTP_PEER) {
|
||||
ast_indicate_data(other, fr->subclass.integer, fr->data.ptr, fr->datalen);
|
||||
}
|
||||
ast_frfree(fr);
|
||||
} else if (fr->subclass.integer == AST_CONTROL_CONNECTED_LINE) {
|
||||
if (ast_channel_connected_line_sub(who, other, fr, 1) &&
|
||||
ast_channel_connected_line_macro(who, other, fr, other == c0, 1)) {
|
||||
ast_indicate_data(other, fr->subclass.integer, fr->data.ptr, fr->datalen);
|
||||
}
|
||||
ast_frfree(fr);
|
||||
} else if (fr->subclass.integer == AST_CONTROL_REDIRECTING) {
|
||||
if (ast_channel_redirecting_sub(who, other, fr, 1) &&
|
||||
ast_channel_redirecting_macro(who, other, fr, other == c0, 1)) {
|
||||
ast_indicate_data(other, fr->subclass.integer, fr->data.ptr, fr->datalen);
|
||||
}
|
||||
ast_frfree(fr);
|
||||
} else if (fr->subclass.integer == AST_CONTROL_PVT_CAUSE_CODE) {
|
||||
ast_channel_hangupcause_hash_set(other, fr->data.ptr, fr->datalen);
|
||||
ast_frfree(fr);
|
||||
} else {
|
||||
*fo = fr;
|
||||
*rc = who;
|
||||
ast_debug(1, "Got a FRAME_CONTROL (%d) frame on channel %s\n", fr->subclass.integer, ast_channel_name(who));
|
||||
res = AST_BRIDGE_COMPLETE;
|
||||
goto remote_bridge_cleanup;
|
||||
}
|
||||
} else {
|
||||
if ((fr->frametype == AST_FRAME_DTMF_BEGIN) ||
|
||||
(fr->frametype == AST_FRAME_DTMF_END) ||
|
||||
(fr->frametype == AST_FRAME_VOICE) ||
|
||||
(fr->frametype == AST_FRAME_VIDEO) ||
|
||||
(fr->frametype == AST_FRAME_IMAGE) ||
|
||||
(fr->frametype == AST_FRAME_HTML) ||
|
||||
(fr->frametype == AST_FRAME_MODEM) ||
|
||||
(fr->frametype == AST_FRAME_TEXT)) {
|
||||
ast_write(other, fr);
|
||||
}
|
||||
ast_frfree(fr);
|
||||
}
|
||||
/* Swap priority */
|
||||
cs[2] = cs[0];
|
||||
cs[0] = cs[1];
|
||||
cs[1] = cs[2];
|
||||
}
|
||||
|
||||
if (ast_test_flag(ast_channel_flags(c0), AST_FLAG_ZOMBIE)) {
|
||||
ast_debug(1, "Channel '%s' Zombie cleardown from bridge\n", ast_channel_name(c0));
|
||||
} else if (ast_channel_tech_pvt(c0) != pvt0) {
|
||||
ast_debug(1, "Channel c0->'%s' pvt changed, in bridge with c1->'%s'\n", ast_channel_name(c0), ast_channel_name(c1));
|
||||
} else if (glue0 != ast_rtp_instance_get_glue(ast_channel_tech(c0)->type)) {
|
||||
ast_debug(1, "Channel c0->'%s' technology changed, in bridge with c1->'%s'\n", ast_channel_name(c0), ast_channel_name(c1));
|
||||
} else if (glue0->update_peer(c0, NULL, NULL, NULL, 0, 0)) {
|
||||
ast_log(LOG_WARNING, "Channel '%s' failed to break RTP bridge\n", ast_channel_name(c0));
|
||||
}
|
||||
if (ast_test_flag(ast_channel_flags(c1), AST_FLAG_ZOMBIE)) {
|
||||
ast_debug(1, "Channel '%s' Zombie cleardown from bridge\n", ast_channel_name(c1));
|
||||
} else if (ast_channel_tech_pvt(c1) != pvt1) {
|
||||
ast_debug(1, "Channel c1->'%s' pvt changed, in bridge with c0->'%s'\n", ast_channel_name(c1), ast_channel_name(c0));
|
||||
} else if (glue1 != ast_rtp_instance_get_glue(ast_channel_tech(c1)->type)) {
|
||||
ast_debug(1, "Channel c1->'%s' technology changed, in bridge with c0->'%s'\n", ast_channel_name(c1), ast_channel_name(c0));
|
||||
} else if (glue1->update_peer(c1, NULL, NULL, NULL, 0, 0)) {
|
||||
ast_log(LOG_WARNING, "Channel '%s' failed to break RTP bridge\n", ast_channel_name(c1));
|
||||
}
|
||||
|
||||
instance0->bridged = NULL;
|
||||
instance1->bridged = NULL;
|
||||
|
||||
ast_poll_channel_del(c0, c1);
|
||||
|
||||
remote_bridge_cleanup:
|
||||
ast_format_cap_destroy(oldcap0);
|
||||
ast_format_cap_destroy(oldcap1);
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
/*!
|
||||
* \brief Conditionally unref an rtp instance
|
||||
*/
|
||||
@@ -1430,186 +939,16 @@ static void unref_instance_cond(struct ast_rtp_instance **instance)
|
||||
}
|
||||
}
|
||||
|
||||
enum ast_bridge_result ast_rtp_instance_bridge(struct ast_channel *c0, struct ast_channel *c1, int flags, struct ast_frame **fo, struct ast_channel **rc, int timeoutms)
|
||||
{
|
||||
struct ast_rtp_instance *instance0 = NULL, *instance1 = NULL,
|
||||
*vinstance0 = NULL, *vinstance1 = NULL,
|
||||
*tinstance0 = NULL, *tinstance1 = NULL;
|
||||
struct ast_rtp_glue *glue0, *glue1;
|
||||
struct ast_sockaddr addr1 = { {0, }, }, addr2 = { {0, }, };
|
||||
enum ast_rtp_glue_result audio_glue0_res = AST_RTP_GLUE_RESULT_FORBID, video_glue0_res = AST_RTP_GLUE_RESULT_FORBID;
|
||||
enum ast_rtp_glue_result audio_glue1_res = AST_RTP_GLUE_RESULT_FORBID, video_glue1_res = AST_RTP_GLUE_RESULT_FORBID;
|
||||
enum ast_bridge_result res = AST_BRIDGE_FAILED;
|
||||
enum ast_rtp_dtmf_mode dmode;
|
||||
struct ast_format_cap *cap0 = ast_format_cap_alloc_nolock();
|
||||
struct ast_format_cap *cap1 = ast_format_cap_alloc_nolock();
|
||||
int unlock_chans = 1;
|
||||
int read_ptime0, read_ptime1, write_ptime0, write_ptime1;
|
||||
|
||||
if (!cap0 || !cap1) {
|
||||
unlock_chans = 0;
|
||||
goto done;
|
||||
}
|
||||
|
||||
/* Lock both channels so we can look for the glue that binds them together */
|
||||
ast_channel_lock_both(c0, c1);
|
||||
|
||||
/* Ensure neither channel got hungup during lock avoidance */
|
||||
if (ast_check_hangup(c0) || ast_check_hangup(c1)) {
|
||||
ast_log(LOG_WARNING, "Got hangup while attempting to bridge '%s' and '%s'\n", ast_channel_name(c0), ast_channel_name(c1));
|
||||
goto done;
|
||||
}
|
||||
|
||||
/* Grab glue that binds each channel to something using the RTP engine */
|
||||
if (!(glue0 = ast_rtp_instance_get_glue(ast_channel_tech(c0)->type)) || !(glue1 = ast_rtp_instance_get_glue(ast_channel_tech(c1)->type))) {
|
||||
ast_debug(1, "Can't find native functions for channel '%s'\n", glue0 ? ast_channel_name(c1) : ast_channel_name(c0));
|
||||
goto done;
|
||||
}
|
||||
|
||||
audio_glue0_res = glue0->get_rtp_info(c0, &instance0);
|
||||
video_glue0_res = glue0->get_vrtp_info ? glue0->get_vrtp_info(c0, &vinstance0) : AST_RTP_GLUE_RESULT_FORBID;
|
||||
|
||||
audio_glue1_res = glue1->get_rtp_info(c1, &instance1);
|
||||
video_glue1_res = glue1->get_vrtp_info ? glue1->get_vrtp_info(c1, &vinstance1) : AST_RTP_GLUE_RESULT_FORBID;
|
||||
|
||||
/* Apply any limitations on direct media bridging that may be present */
|
||||
if (audio_glue0_res == audio_glue1_res && audio_glue1_res == AST_RTP_GLUE_RESULT_REMOTE) {
|
||||
if (glue0->allow_rtp_remote && !(glue0->allow_rtp_remote(c0, instance1))) {
|
||||
/* If the allow_rtp_remote indicates that remote isn't allowed, revert to local bridge */
|
||||
audio_glue0_res = audio_glue1_res = AST_RTP_GLUE_RESULT_LOCAL;
|
||||
} else if (glue1->allow_rtp_remote && !(glue1->allow_rtp_remote(c1, instance0))) {
|
||||
audio_glue0_res = audio_glue1_res = AST_RTP_GLUE_RESULT_LOCAL;
|
||||
}
|
||||
}
|
||||
if (video_glue0_res == video_glue1_res && video_glue1_res == AST_RTP_GLUE_RESULT_REMOTE) {
|
||||
if (glue0->allow_vrtp_remote && !(glue0->allow_vrtp_remote(c0, instance1))) {
|
||||
/* if the allow_vrtp_remote indicates that remote isn't allowed, revert to local bridge */
|
||||
video_glue0_res = video_glue1_res = AST_RTP_GLUE_RESULT_LOCAL;
|
||||
} else if (glue1->allow_vrtp_remote && !(glue1->allow_vrtp_remote(c1, instance0))) {
|
||||
video_glue0_res = video_glue1_res = AST_RTP_GLUE_RESULT_LOCAL;
|
||||
}
|
||||
}
|
||||
|
||||
/* If we are carrying video, and both sides are not going to remotely bridge... fail the native bridge */
|
||||
if (video_glue0_res != AST_RTP_GLUE_RESULT_FORBID && (audio_glue0_res != AST_RTP_GLUE_RESULT_REMOTE || video_glue0_res != AST_RTP_GLUE_RESULT_REMOTE)) {
|
||||
audio_glue0_res = AST_RTP_GLUE_RESULT_FORBID;
|
||||
}
|
||||
if (video_glue1_res != AST_RTP_GLUE_RESULT_FORBID && (audio_glue1_res != AST_RTP_GLUE_RESULT_REMOTE || video_glue1_res != AST_RTP_GLUE_RESULT_REMOTE)) {
|
||||
audio_glue1_res = AST_RTP_GLUE_RESULT_FORBID;
|
||||
}
|
||||
|
||||
/* If any sort of bridge is forbidden just completely bail out and go back to generic bridging */
|
||||
if (audio_glue0_res == AST_RTP_GLUE_RESULT_FORBID || audio_glue1_res == AST_RTP_GLUE_RESULT_FORBID) {
|
||||
res = AST_BRIDGE_FAILED_NOWARN;
|
||||
goto done;
|
||||
}
|
||||
|
||||
|
||||
/* If address families differ, force a local bridge */
|
||||
ast_rtp_instance_get_remote_address(instance0, &addr1);
|
||||
ast_rtp_instance_get_remote_address(instance1, &addr2);
|
||||
|
||||
if (addr1.ss.ss_family != addr2.ss.ss_family ||
|
||||
(ast_sockaddr_is_ipv4_mapped(&addr1) != ast_sockaddr_is_ipv4_mapped(&addr2))) {
|
||||
audio_glue0_res = AST_RTP_GLUE_RESULT_LOCAL;
|
||||
audio_glue1_res = AST_RTP_GLUE_RESULT_LOCAL;
|
||||
}
|
||||
|
||||
/* If we need to get DTMF see if we can do it outside of the RTP stream itself */
|
||||
dmode = ast_rtp_instance_dtmf_mode_get(instance0);
|
||||
if ((flags & AST_BRIDGE_DTMF_CHANNEL_0) && dmode) {
|
||||
res = AST_BRIDGE_FAILED_NOWARN;
|
||||
goto done;
|
||||
}
|
||||
dmode = ast_rtp_instance_dtmf_mode_get(instance1);
|
||||
if ((flags & AST_BRIDGE_DTMF_CHANNEL_1) && dmode) {
|
||||
res = AST_BRIDGE_FAILED_NOWARN;
|
||||
goto done;
|
||||
}
|
||||
|
||||
/* If we have gotten to a local bridge make sure that both sides have the same local bridge callback and that they are DTMF compatible */
|
||||
if ((audio_glue0_res == AST_RTP_GLUE_RESULT_LOCAL || audio_glue1_res == AST_RTP_GLUE_RESULT_LOCAL)
|
||||
&& (instance0->engine->local_bridge != instance1->engine->local_bridge
|
||||
|| (instance0->engine->dtmf_compatible && !instance0->engine->dtmf_compatible(c0, instance0, c1, instance1)))) {
|
||||
res = AST_BRIDGE_FAILED_NOWARN;
|
||||
goto done;
|
||||
}
|
||||
|
||||
/* Make sure that codecs match */
|
||||
if (glue0->get_codec){
|
||||
glue0->get_codec(c0, cap0);
|
||||
}
|
||||
if (glue1->get_codec) {
|
||||
glue1->get_codec(c1, cap1);
|
||||
}
|
||||
if (!ast_format_cap_is_empty(cap0) && !ast_format_cap_is_empty(cap1) && !ast_format_cap_has_joint(cap0, cap1)) {
|
||||
char tmp0[256] = { 0, };
|
||||
char tmp1[256] = { 0, };
|
||||
ast_debug(1, "Channel codec0 = %s is not codec1 = %s, cannot native bridge in RTP.\n",
|
||||
ast_getformatname_multiple(tmp0, sizeof(tmp0), cap0),
|
||||
ast_getformatname_multiple(tmp1, sizeof(tmp1), cap1));
|
||||
res = AST_BRIDGE_FAILED_NOWARN;
|
||||
goto done;
|
||||
}
|
||||
|
||||
read_ptime0 = (ast_codec_pref_getsize(&instance0->codecs.pref, ast_channel_rawreadformat(c0))).cur_ms;
|
||||
read_ptime1 = (ast_codec_pref_getsize(&instance1->codecs.pref, ast_channel_rawreadformat(c1))).cur_ms;
|
||||
write_ptime0 = (ast_codec_pref_getsize(&instance0->codecs.pref, ast_channel_rawwriteformat(c0))).cur_ms;
|
||||
write_ptime1 = (ast_codec_pref_getsize(&instance1->codecs.pref, ast_channel_rawwriteformat(c1))).cur_ms;
|
||||
|
||||
if (read_ptime0 != write_ptime1 || read_ptime1 != write_ptime0) {
|
||||
ast_debug(1, "Packetization differs between RTP streams (%d != %d or %d != %d). Cannot native bridge in RTP\n",
|
||||
read_ptime0, write_ptime1, read_ptime1, write_ptime0);
|
||||
res = AST_BRIDGE_FAILED_NOWARN;
|
||||
goto done;
|
||||
}
|
||||
|
||||
instance0->glue = glue0;
|
||||
instance1->glue = glue1;
|
||||
instance0->chan = c0;
|
||||
instance1->chan = c1;
|
||||
|
||||
/* Depending on the end result for bridging either do a local bridge or remote bridge */
|
||||
if (audio_glue0_res == AST_RTP_GLUE_RESULT_LOCAL || audio_glue1_res == AST_RTP_GLUE_RESULT_LOCAL) {
|
||||
ast_verb(3, "Locally bridging %s and %s\n", ast_channel_name(c0), ast_channel_name(c1));
|
||||
res = local_bridge_loop(c0, c1, instance0, instance1, timeoutms, flags, fo, rc, ast_channel_tech_pvt(c0), ast_channel_tech_pvt(c1));
|
||||
} else {
|
||||
ast_verb(3, "Remotely bridging %s and %s\n", ast_channel_name(c0), ast_channel_name(c1));
|
||||
res = remote_bridge_loop(c0, c1, instance0, instance1, vinstance0, vinstance1,
|
||||
tinstance0, tinstance1, glue0, glue1, cap0, cap1, timeoutms, flags,
|
||||
fo, rc, ast_channel_tech_pvt(c0), ast_channel_tech_pvt(c1));
|
||||
}
|
||||
|
||||
instance0->glue = NULL;
|
||||
instance1->glue = NULL;
|
||||
instance0->chan = NULL;
|
||||
instance1->chan = NULL;
|
||||
|
||||
unlock_chans = 0;
|
||||
|
||||
done:
|
||||
if (unlock_chans) {
|
||||
ast_channel_unlock(c0);
|
||||
ast_channel_unlock(c1);
|
||||
}
|
||||
ast_format_cap_destroy(cap1);
|
||||
ast_format_cap_destroy(cap0);
|
||||
|
||||
unref_instance_cond(&instance0);
|
||||
unref_instance_cond(&instance1);
|
||||
unref_instance_cond(&vinstance0);
|
||||
unref_instance_cond(&vinstance1);
|
||||
unref_instance_cond(&tinstance0);
|
||||
unref_instance_cond(&tinstance1);
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
struct ast_rtp_instance *ast_rtp_instance_get_bridged(struct ast_rtp_instance *instance)
|
||||
{
|
||||
return instance->bridged;
|
||||
}
|
||||
|
||||
void ast_rtp_instance_set_bridged(struct ast_rtp_instance *instance, struct ast_rtp_instance *bridged)
|
||||
{
|
||||
instance->bridged = bridged;
|
||||
}
|
||||
|
||||
void ast_rtp_instance_early_bridge_make_compatible(struct ast_channel *c0, struct ast_channel *c1)
|
||||
{
|
||||
struct ast_rtp_instance *instance0 = NULL, *instance1 = NULL,
|
||||
|
||||
Reference in New Issue
Block a user