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rtpengine
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rtpengine/daemon/call_interfaces.c

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#include "call_interfaces.h"
#include <stdio.h>
#include <unistd.h>
#include <glib.h>
#include <stdlib.h>
#include <pcre2.h>
#include <inttypes.h>
#include "call.h"
#include "helpers.h"
#include "log.h"
#include "redis.h"
#include "sdp.h"
#include "str.h"
#include "control_tcp.h"
#include "control_udp.h"
#include "control_ng.h"
#include "rtp.h"
#include "ice.h"
#include "recording.h"
#include "rtplib.h"
#include "ssrc.h"
#include "tcp_listener.h"
#include "streambuf.h"
#include "main.h"
#include "load.h"
#include "media_player.h"
#include "dtmf.h"
#include "codec.h"
#include "dtmf.h"
#include "control_ng_flags_parser.h"
static pcre2_code *info_re;
static pcre2_code *streams_re;
bool trust_address_def;
bool dtls_passive_def;
str_case_value_ht rtpe_signalling_templates;
str rtpe_default_signalling_templates[OP_COUNT + 1];
enum basic_errors {
NG_ERROR_NO_SDP_BODY = 1,
NG_ERROR_NO_CALL_ID = 2,
NG_ERROR_NO_FROM_TAG = 3,
NG_ERROR_NO_TO_TAG = 4
};
static const char* _ng_basic_errors[] = {
[NG_ERROR_NO_SDP_BODY] = "No SDP body in message",
[NG_ERROR_NO_CALL_ID] = "No call-id in message",
[NG_ERROR_NO_FROM_TAG] = "No from-tag in message",
[NG_ERROR_NO_TO_TAG] = "No to-tag in message",
};
INLINE int call_ng_flags_prefix(str *s_ori, const char *prefix,
void (*cb)(str *, unsigned int, helper_arg), helper_arg);
static void call_ng_flags_str_ht(str *s, unsigned int, helper_arg);
static void call_ng_flags_str_q_multi(str *s, unsigned int, helper_arg);
static void call_ng_flags_str_list(const ng_parser_t *, parser_arg list,
void (*callback)(str *, unsigned int, helper_arg), helper_arg);
static void call_ng_flags_list(const ng_parser_t *, parser_arg list,
void (*str_callback)(str *, unsigned int, helper_arg),
void (*item_callback)(const ng_parser_t *, parser_arg, helper_arg),
helper_arg);
static void call_ng_flags_esc_str_list(str *s, unsigned int, helper_arg);
static void ng_stats_ssrc(const ng_parser_t *parser, parser_arg dict, const struct ssrc_hash *ht);
static str *str_dup_escape(const str *s);
static void call_set_dtmf_block(call_t *call, struct call_monologue *monologue, sdp_ng_flags *flags);
static str streams_print(medias_arr *s, int start, int end, const char *prefix, enum stream_address_format format) {
GString *o;
int i, af, port;
struct call_media *media;
struct packet_stream *ps;
o = g_string_new("");
if (prefix)
g_string_append_printf(o, "%s ", prefix);
for (i = start; i <= end; i++) {
if (s->len <= i || (media = s->pdata[i - 1]) == NULL) {
ilog(LOG_WARNING, "Requested media index %i not found", i);
break;
}
if (!media->streams.head) {
ilog(LOG_WARNING, "Media has no streams");
break;
}
ps = media->streams.head->data;
if (format == SAF_TCP)
call_stream_address(o, ps, format, NULL, true);
port = ps->selected_sfd ? ps->selected_sfd->socket.local.port : 0;
g_string_append_printf(o, (format == 1) ? "%i " : " %i", port);
if (format == SAF_UDP) {
af = call_stream_address(o, ps, format, NULL, true);
g_string_append_printf(o, " %c", (af == AF_INET) ? '4' : '6');
}
}
g_string_append(o, "\n");
return g_string_free_str(o);
}
static int addr_parse_udp(struct stream_params *sp, char **out) {
const char *cp;
char c;
int i;
ZERO(*sp);
SP_SET(sp, SEND);
SP_SET(sp, RECV);
sp->protocol = &transport_protocols[PROTO_UNKNOWN];
if (out[RE_UDP_UL_ADDR4] && *out[RE_UDP_UL_ADDR4]) {
if (!sockaddr_parse_any(&sp->rtp_endpoint.address, out[RE_UDP_UL_ADDR4]))
goto fail;
}
else if (out[RE_UDP_UL_ADDR6] && *out[RE_UDP_UL_ADDR6]) {
if (!sockaddr_parse_any(&sp->rtp_endpoint.address, out[RE_UDP_UL_ADDR6]))
goto fail;
}
else
goto fail;
sp->rtp_endpoint.port = atoi(out[RE_UDP_UL_PORT]);
if (!sp->rtp_endpoint.port && strcmp(out[RE_UDP_UL_PORT], "0"))
goto fail;
if (out[RE_UDP_UL_FLAGS] && *out[RE_UDP_UL_FLAGS]) {
i = 0;
for (cp =out[RE_UDP_UL_FLAGS]; *cp && i < 2; cp++) {
c = chrtoupper(*cp);
if (c == 'E')
sp->direction[i++] = STR("external");
else if (c == 'I')
sp->direction[i++] = STR("internal");
}
}
if (out[RE_UDP_UL_NUM] && *out[RE_UDP_UL_NUM])
sp->index = atoi(out[RE_UDP_UL_NUM]);
if (!sp->index)
sp->index = 1;
sp->consecutive_ports = 1;
sp->rtcp_endpoint = sp->rtp_endpoint;
sp->rtcp_endpoint.port++;
return 0;
fail:
return -1;
}
static void updated_created_from(call_t *c, const char *addr, const endpoint_t *sin) {
if (!c->created_from && addr) {
c->created_from = call_strdup(addr);
if (sin)
c->created_from_addr = sin->address;
}
}
static str call_update_lookup_udp(char **out, enum ng_opmode opmode, const char* addr,
const endpoint_t *sin)
{
call_t *c;
struct call_monologue *monologues[2]; /* subscriber lists of both monologues */
sdp_streams_q q = TYPED_GQUEUE_INIT;
struct stream_params sp;
str ret;
int i;
g_auto(sdp_ng_flags) flags;
call_ng_flags_init(&flags, opmode);
str callid = STR(out[RE_UDP_UL_CALLID]);
str fromtag = STR(out[RE_UDP_UL_FROMTAG]);
str totag = STR(out[RE_UDP_UL_TOTAG]);
if (opmode == OP_ANSWER)
str_swap(&fromtag, &totag);
c = call_get_opmode(&callid, opmode);
if (!c) {
ilog(LOG_WARNING, "[" STR_FORMAT_M "] Got UDP LOOKUP for unknown call-id",
STR_FMT_M(&callid));
return str_sprintf("%s 0 0.0.0.0\n", out[RE_UDP_COOKIE]);
}
updated_created_from(c, addr, sin);
if (call_get_mono_dialogue(monologues, c, &fromtag, &totag, NULL, NULL))
goto ml_fail;
struct call_monologue *from_ml = monologues[0];
struct call_monologue *to_ml = monologues[1];
if (opmode == OP_OFFER) {
from_ml->tagtype = FROM_TAG;
} else {
from_ml->tagtype = TO_TAG;
}
if (addr_parse_udp(&sp, out))
goto addr_fail;
t_queue_push_tail(&q, &sp);
i = monologue_offer_answer(monologues, &q, &flags);
t_queue_clear(&q);
if (i)
goto unlock_fail;
ret = streams_print(to_ml->medias,
sp.index, sp.index, out[RE_UDP_COOKIE], SAF_UDP);
rwlock_unlock_w(&c->master_lock);
redis_update_onekey(c, rtpe_redis_write);
from_ml->started = rtpe_now;
ilog(LOG_INFO, "Returning to SIP proxy: " STR_FORMAT, STR_FMT(&ret));
goto out;
ml_fail:
ilog(LOG_ERR, "Invalid dialogue association");
goto unlock_fail;
addr_fail:
ilog(LOG_ERR, "Failed to parse a media stream: %s%s/%s:%s%s",
FMT_M(out[RE_UDP_UL_ADDR4], out[RE_UDP_UL_ADDR6], out[RE_UDP_UL_PORT]));
goto unlock_fail;
unlock_fail:
rwlock_unlock_w(&c->master_lock);
ret = str_sprintf("%s E8\n", out[RE_UDP_COOKIE]);
out:
obj_put(c);
return ret;
}
str call_update_udp(char **out, const char* addr, const endpoint_t *sin) {
return call_update_lookup_udp(out, OP_OFFER, addr, sin);
}
str call_lookup_udp(char **out) {
return call_update_lookup_udp(out, OP_ANSWER, NULL, NULL);
}
static bool info_parse_func(char **a, void **ret, void *p) {
if (!a[0] || !a[1])
return false;
GHashTable *ih = p;
g_hash_table_replace(ih, strdup(a[0]), strdup(a[1]));
return false;
}
static void info_parse(const char *s, GHashTable *ih) {
pcre2_multi_match(info_re, s, 3, info_parse_func, ih, NULL);
}
static bool streams_parse_func(char **a, void **ret, void *p) {
if (!a[0] || !a[1])
return false;
struct stream_params *sp;
int *i;
i = p;
sp = g_new0(__typeof(*sp), 1);
SP_SET(sp, SEND);
SP_SET(sp, RECV);
sp->protocol = &transport_protocols[PROTO_UNKNOWN];
if (!endpoint_parse_port_any(&sp->rtp_endpoint, a[0], atoi(a[1])))
goto fail;
sp->index = ++(*i);
sp->consecutive_ports = 1;
sp->rtcp_endpoint = sp->rtp_endpoint;
sp->rtcp_endpoint.port++;
if (!sp->rtp_endpoint.port && strcmp(a[1], "0"))
goto fail;
*ret = sp;
return true;
fail:
ilog(LOG_WARNING, "Failed to parse a media stream: %s%s:%s%s", FMT_M(a[0], a[1]));
g_free(sp);
return false;
}
static void streams_parse(const char *s, sdp_streams_q *q) {
int i;
i = 0;
pcre2_multi_match(streams_re, s, 4, streams_parse_func, &i, &q->q);
}
void call_unlock_release(call_t *c) {
rwlock_unlock_w(&c->master_lock);
obj_put(c);
}
INLINE void call_unlock_release_update(call_t **c) {
if (!*c)
return;
rwlock_unlock_w(&(*c)->master_lock);
redis_update_onekey(*c, rtpe_redis_write);
obj_release(*c);
}
static str call_request_lookup_tcp(char **out, enum ng_opmode opmode) {
call_t *c;
struct call_monologue *monologues[2];
g_auto(sdp_streams_q) s = TYPED_GQUEUE_INIT;
str ret = STR_NULL;
GHashTable *infohash;
g_auto(sdp_ng_flags) flags;
call_ng_flags_init(&flags, opmode);
str callid = STR(out[RE_TCP_RL_CALLID]);
infohash = g_hash_table_new_full(g_str_hash, g_str_equal, free, free);
c = call_get_opmode(&callid, opmode);
if (!c) {
ilog(LOG_WARNING, "[" STR_FORMAT_M "] Got LOOKUP for unknown call-id", STR_FMT_M(&callid));
goto out;
}
info_parse(out[RE_TCP_RL_INFO], infohash);
streams_parse(out[RE_TCP_RL_STREAMS], &s);
str fromtag = STR(g_hash_table_lookup(infohash, "fromtag"));
if (!fromtag.s) {
ilog(LOG_WARNING, "No from-tag in message");
goto out2;
}
str totag = STR(g_hash_table_lookup(infohash, "totag"));
if (opmode == OP_ANSWER) {
if (!totag.s) {
ilog(LOG_WARNING, "No to-tag in message");
goto out2;
}
str_swap(&fromtag, &totag);
}
if (call_get_mono_dialogue(monologues, c, &fromtag, &totag, NULL, NULL)) {
ilog(LOG_WARNING, "Invalid dialogue association");
goto out2;
}
if (monologue_offer_answer(monologues, &s, &flags))
goto out2;
ret = streams_print(monologues[1]->medias, 1, s.length, NULL, SAF_TCP);
out2:
call_unlock_release_update(&c);
ilog(LOG_INFO, "Returning to SIP proxy: " STR_FORMAT, STR_FMT(&ret));
out:
g_hash_table_destroy(infohash);
return ret;
}
str call_request_tcp(char **out) {
return call_request_lookup_tcp(out, OP_OFFER);
}
str call_lookup_tcp(char **out) {
return call_request_lookup_tcp(out, OP_ANSWER);
}
str call_delete_udp(char **out) {
__C_DBG("got delete for callid '%s' and viabranch '%s'",
out[RE_UDP_DQ_CALLID], out[RE_UDP_DQ_VIABRANCH]);
str callid = STR(out[RE_UDP_DQ_CALLID]);
str branch = STR(out[RE_UDP_DQ_VIABRANCH]);
str fromtag = STR(out[RE_UDP_DQ_FROMTAG]);
str totag = STR(out[RE_UDP_DQ_TOTAG]);
if (call_delete_branch_by_id(&callid, &branch, &fromtag, &totag, NULL, -1))
return str_sprintf("%s E8\n", out[RE_UDP_COOKIE]);
return str_sprintf("%s 0\n", out[RE_UDP_COOKIE]);
}
str call_query_udp(char **out) {
g_autoptr(call_t) c = NULL;
str ret;
struct call_stats stats;
__C_DBG("got query for callid '%s'", out[RE_UDP_DQ_CALLID]);
str callid = STR(out[RE_UDP_DQ_CALLID]);
str fromtag = STR(out[RE_UDP_DQ_FROMTAG]);
str totag = STR(out[RE_UDP_DQ_TOTAG]);
c = call_get(&callid);
if (!c) {
ilog(LOG_INFO, "[" STR_FORMAT_M "] Call-ID to query not found", STR_FMT_M(&callid));
goto err;
}
ng_call_stats(NULL, c, &fromtag, &totag, &stats);
rwlock_unlock_w(&c->master_lock);
ret = str_sprintf("%s %" PRId64 " %" PRIu64 " %" PRIu64 " %" PRIu64 " %" PRIu64 "\n", out[RE_UDP_COOKIE],
atomic_get_na(&rtpe_config.silent_timeout) * 1000000L - (rtpe_now - stats.last_packet_us), // XXX scale to micro
atomic64_get_na(&stats.totals[0].packets), atomic64_get_na(&stats.totals[1].packets),
atomic64_get_na(&stats.totals[2].packets), atomic64_get_na(&stats.totals[3].packets));
goto out;
err:
ret = str_sprintf("%s E8\n", out[RE_UDP_COOKIE]);
out:
return ret;
}
void call_delete_tcp(char **out) {
str callid = STR(out[RE_TCP_D_CALLID]);
call_delete_branch_by_id(&callid, NULL, NULL, NULL, NULL, -1);
}
static void call_status_iterator(call_t *c, struct streambuf_stream *s) {
// GList *l;
// struct callstream *cs;
// struct peer *p;
// struct streamrelay *r1, *r2;
// struct streamrelay *rx1, *rx2;
// char addr1[64], addr2[64], addr3[64];
// mutex_lock(&c->master_lock);
streambuf_printf(s->outbuf, "session "STR_FORMAT" - - - - %" PRId64 "\n",
STR_FMT(&c->callid),
(rtpe_now - c->created) / 1000000L);
/* XXX restore function */
// mutex_unlock(&c->master_lock);
}
void calls_status_tcp(struct streambuf_stream *s) {
rwlock_lock_r(&rtpe_callhash_lock);
streambuf_printf(s->outbuf, "proxy %u %" PRIu64 "/%i/%i\n",
t_hash_table_size(rtpe_callhash),
atomic64_get(&rtpe_stats_rate.bytes_user) + atomic64_get(&rtpe_stats_rate.bytes_kernel), 0, 0);
rwlock_unlock_r(&rtpe_callhash_lock);
ITERATE_CALL_LIST_START(CALL_ITERATOR_MAIN, c);
call_status_iterator(c, s);
ITERATE_CALL_LIST_NEXT_END(c);
}
INLINE void call_ngb_hold_ref(call_t *c, ng_buffer *ngb) {
/* We cannot guarantee that the "call" structures are still around at the time
* when the bencode reply is finally read and sent out. Since we use scatter/gather
* to avoid duplication of strings and stuff, we reserve a reference to the call
* structs and have it released when the bencode buffer is destroyed. This is
* necessary every time the bencode response may reference strings contained
* within the call structs. */
ngb->call = obj_get(c);
}
INLINE void ng_sdes_option(str *s, unsigned int idx, helper_arg arg) {
sdp_ng_flags *out = arg.flags;
/* Accept only certain individual crypto suites */
if (call_ng_flags_prefix(s, "only-", call_ng_flags_str_ht, &out->sdes_only))
return;
/* Exclude individual crypto suites */
if (call_ng_flags_prefix(s, "no-", call_ng_flags_str_ht, &out->sdes_no))
return;
/* Order individual crypto suites */
if (call_ng_flags_prefix(s, "order:", call_ng_flags_str_q_multi, &out->sdes_order))
return;
/* Crypto suite preferences for the offerer */
if (call_ng_flags_prefix(s, "offerer_pref:", call_ng_flags_str_q_multi,
&out->sdes_offerer_pref))
return;
switch (__csh_lookup(s)) {
case CSH_LOOKUP("no"):
case CSH_LOOKUP("off"):
case CSH_LOOKUP("disabled"):
case CSH_LOOKUP("disable"):
out->sdes_off = true;
break;
case CSH_LOOKUP("unencrypted_srtp"):
case CSH_LOOKUP("UNENCRYPTED_SRTP"):
out->sdes_unencrypted_srtp = true;
break;
case CSH_LOOKUP("unencrypted_srtcp"):
case CSH_LOOKUP("UNENCRYPTED_SRTCP"):
out->sdes_unencrypted_srtcp = true;
break;
case CSH_LOOKUP("unauthenticated_srtp"):
case CSH_LOOKUP("UNAUTHENTICATED_SRTP"):
out->sdes_unauthenticated_srtp = true;
break;
case CSH_LOOKUP("encrypted_srtp"):
case CSH_LOOKUP("ENCRYPTED_SRTP"):
out->sdes_encrypted_srtp = true;
break;
case CSH_LOOKUP("encrypted_srtcp"):
case CSH_LOOKUP("ENCRYPTED_SRTCP"):
out->sdes_encrypted_srtcp = true;
break;
case CSH_LOOKUP("authenticated_srtp"):
case CSH_LOOKUP("AUTHENTICATED_SRTP"):
out->sdes_authenticated_srtp = true;
break;
case CSH_LOOKUP("lifetime"):
out->sdes_lifetime = true;
break;
case CSH_LOOKUP("pad"):
out->sdes_pad = true;
break;
case CSH_LOOKUP("static"):
out->sdes_static = true;
break;
case CSH_LOOKUP("nonew"):
out->sdes_nonew = true;
break;
case CSH_LOOKUP("prefer"):
case CSH_LOOKUP("priority"):
out->sdes_prefer = true;
break;
default:
ilog(LOG_WARN, "Unknown 'SDES' flag encountered: '"STR_FORMAT"'",
STR_FMT(s));
}
}
INLINE void ng_osrtp_option(str *s, unsigned int idx, helper_arg arg) {
sdp_ng_flags *out = arg.flags;
switch (__csh_lookup(s)) {
case CSH_LOOKUP("accept-rfc"):
case CSH_LOOKUP("accept-RFC"):
out->osrtp_accept_rfc = true;
break;
case CSH_LOOKUP("accept-legacy"):
out->osrtp_accept_legacy = true;
break;
case CSH_LOOKUP("accept"):
out->osrtp_accept_rfc = true;
out->osrtp_accept_legacy = true;
break;
case CSH_LOOKUP("offer-legacy"):
out->osrtp_offer_legacy = true;
break;
case CSH_LOOKUP("offer"):
case CSH_LOOKUP("offer-RFC"):
case CSH_LOOKUP("offer-rfc"):
out->osrtp_offer = true;
break;
default:
ilog(LOG_WARN, "Unknown 'OSRTP' flag encountered: '" STR_FORMAT "'",
STR_FMT(s));
}
}
static void call_ng_flags_str_pair_ht(str *s, unsigned int idx, helper_arg arg) {
str *s_copy = str_dup_escape(s);
str token;
if (!str_token(&token, s_copy, '>')) {
ilog(LOG_WARN, "SDP manipulations: Ignoring invalid token '" STR_FORMAT "'", STR_FMT(s));
free(s_copy);
return;
}
str_case_value_ht *ht = arg.svt;
if (!t_hash_table_is_set(*ht))
*ht = str_case_value_ht_new();
t_hash_table_replace(*ht, str_dup(&token), s_copy);
}
static void call_ng_flags_item_pair_ht_iter(str *key, unsigned int idx, helper_arg arg) {
str *from_to = arg.strs;
if (from_to[0].len == 0)
from_to[0] = *key;
else if (from_to[1].len == 0)
from_to[1] = *key;
}
static void call_ng_flags_item_pair_ht(const ng_parser_t *parser, parser_arg it, helper_arg arg) {
str from_to[2] = {0};
if (!parser->is_list(it))
goto err;
parser->list_iter(parser, it, call_ng_flags_item_pair_ht_iter, NULL, from_to);
if (from_to[0].len == 0 || from_to[1].len == 0)
goto err;
str * s_copy_from = str_dup_escape(&from_to[0]);
str * s_copy_to = str_dup_escape(&from_to[1]);
str_case_value_ht *ht = arg.svt;
if (!t_hash_table_is_set(*ht))
*ht = str_case_value_ht_new();
t_hash_table_replace(*ht, s_copy_from, s_copy_to);
return;
err:
ilog(LOG_WARN, "SDP manipulations: Ignoring invalid contents of string-pair list");
}
/**
* SDP attribute manipulation praser helpers.
*/
static void ng_sdp_attr_media_iter(const ng_parser_t *parser, str *command_type, parser_arg command_value,
helper_arg arg)
{
struct sdp_manipulations *sm = arg.sm;
switch (__csh_lookup(command_type)) {
case CSH_LOOKUP("substitute"):
call_ng_flags_list(parser, command_value, call_ng_flags_str_pair_ht, call_ng_flags_item_pair_ht,
&sm->subst_commands);
break;
case CSH_LOOKUP("add"):
call_ng_flags_str_list(parser, command_value, call_ng_flags_esc_str_list, &sm->add_commands);
break;
case CSH_LOOKUP("remove"):
call_ng_flags_str_list(parser, command_value, call_ng_flags_str_ht, &sm->rem_commands);
break;
default:
ilog(LOG_WARN, "SDP manipulations: Unknown SDP manipulation command type.");
}
}
static void ng_sdp_attr_manipulations_iter(const ng_parser_t *parser, str *media_type, parser_arg command_action,
helper_arg arg)
{
struct sdp_manipulations *sm = sdp_manipulations_get_by_name(arg.flags->sdp_manipulations, media_type);
if (!sm) {
ilog(LOG_WARN, "SDP manipulations: unsupported SDP section '" STR_FORMAT "' targeted.",
STR_FMT(media_type));
return;
}
if (!parser->dict_iter(parser, command_action, ng_sdp_attr_media_iter, sm))
ilog(LOG_WARN, "SDP manipulations: Wrong content for SDP section.");
}
INLINE void ng_sdp_attr_manipulations(const ng_parser_t *parser, sdp_ng_flags *flags, parser_arg value) {
if (!parser->dict_iter(parser, value, ng_sdp_attr_manipulations_iter, flags))
ilog(LOG_WARN, "SDP manipulations: Wrong type for this type of command.");
}
/**
* SDP media section manipulation parser helpers.
*/
static void ng_sdp_media_remove_iter(str *media_type, unsigned int i, helper_arg arg)
{
enum media_type id = codec_get_type(media_type);
if (id == MT_UNKNOWN || (id == MT_OTHER && str_cmp(media_type, "other")))
{
ilog(LOG_WARN, "SDP manipulations: unsupported SDP section '" STR_FORMAT "' targeted.",
STR_FMT(media_type));
/* only known media types are supported */
return;
}
arg.flags->sdp_media_remove[id] = true;
}
INLINE void ng_sdp_media_remove(const ng_parser_t *parser, sdp_ng_flags *flags, parser_arg value) {
if (!parser->is_list(value))
return;
parser->list_iter(parser, value, ng_sdp_media_remove_iter, NULL, flags);
}
INLINE void ng_el_option(str *s, unsigned int idx, helper_arg arg) {
sdp_ng_flags *out = arg.flags;
switch (__csh_lookup(s)) {
case CSH_LOOKUP("off"):
out->el_option = EL_OFF;
break;
case CSH_LOOKUP("immediate"):
out->el_option = EL_IMMEDIATE;
break;
case CSH_LOOKUP("delayed"):
out->el_option = EL_DELAYED;
break;
case CSH_LOOKUP("heuristic"):
out->el_option = EL_HEURISTIC;
break;
default:
ilog(LOG_WARN, "Unknown 'endpoint-learning' flag encountered: '" STR_FORMAT "'",
STR_FMT(s));
}
}
#ifdef WITH_TRANSCODING
INLINE void ng_t38_option(str *s, unsigned int idx, helper_arg arg) {
sdp_ng_flags *out = arg.flags;
switch (__csh_lookup(s)) {
case CSH_LOOKUP("decode"):
out->t38_decode = true;
break;
case CSH_LOOKUP("force"):
out->t38_force = true;
break;
case CSH_LOOKUP("stop"):
out->t38_stop = true;
break;
case CSH_LOOKUP("no-ecm"):
case CSH_LOOKUP("no-ECM"):
case CSH_LOOKUP("no ecm"):
case CSH_LOOKUP("no ECM"):
out->t38_no_ecm = true;
break;
case CSH_LOOKUP("no-V17"):
case CSH_LOOKUP("no-V.17"):
case CSH_LOOKUP("no-v17"):
case CSH_LOOKUP("no-v.17"):
case CSH_LOOKUP("no V17"):
case CSH_LOOKUP("no V.17"):
case CSH_LOOKUP("no v17"):
case CSH_LOOKUP("no v.17"):
out->t38_no_v17 = true;
break;
case CSH_LOOKUP("no-V.27ter"):
case CSH_LOOKUP("no-V27ter"):
case CSH_LOOKUP("no-v.27ter"):
case CSH_LOOKUP("no-v27ter"):
case CSH_LOOKUP("no V.27ter"):
case CSH_LOOKUP("no V27ter"):
case CSH_LOOKUP("no v.27ter"):
case CSH_LOOKUP("no v27ter"):
out->t38_no_v27ter = true;
break;
case CSH_LOOKUP("no-V29"):
case CSH_LOOKUP("no-V.29"):
case CSH_LOOKUP("no-v29"):
case CSH_LOOKUP("no-v.29"):
case CSH_LOOKUP("no V29"):
case CSH_LOOKUP("no V.29"):
case CSH_LOOKUP("no v29"):
case CSH_LOOKUP("no v.29"):
out->t38_no_v29 = true;
break;
case CSH_LOOKUP("no-V34"):
case CSH_LOOKUP("no-V.34"):
case CSH_LOOKUP("no-v34"):
case CSH_LOOKUP("no-v.34"):
case CSH_LOOKUP("no V34"):
case CSH_LOOKUP("no V.34"):
case CSH_LOOKUP("no v34"):
case CSH_LOOKUP("no v.34"):
out->t38_no_v34 = true;
break;
case CSH_LOOKUP("no-IAF"):
case CSH_LOOKUP("no-iaf"):
case CSH_LOOKUP("no IAF"):
case CSH_LOOKUP("no iaf"):
out->t38_no_iaf = true;
break;
case CSH_LOOKUP("FEC"):
case CSH_LOOKUP("fec"):
out->t38_fec = true;
break;
default:
ilog(LOG_WARN, "Unknown 'T.38' flag encountered: '" STR_FORMAT "'",
STR_FMT(s));
}
}
#endif
static void call_ng_flags_list(const ng_parser_t *parser, parser_arg list,
void (*str_callback)(str *, unsigned int, helper_arg),
void (*item_callback)(const ng_parser_t *, parser_arg, helper_arg),
helper_arg arg)
{
str s;
if (!parser->is_list(list)) {
if (parser->get_str(list, &s)) {
str token;
while (str_token_sep(&token, &s, ','))
str_callback(&token, 0, arg);
}
else
ilog(LOG_DEBUG, "Ignoring non-list non-string value");
return;
}
parser->list_iter(parser, list, str_callback, item_callback, arg);
}
static void call_ng_flags_str_list(const ng_parser_t *parser, parser_arg list,
void (*callback)(str *, unsigned int, helper_arg), helper_arg arg)
{
call_ng_flags_list(parser, list, callback, NULL, arg);
}
static void call_ng_flags_rtcp_mux(str *s, unsigned int idx, helper_arg arg) {
sdp_ng_flags *out = arg.flags;
switch (__csh_lookup(s)) {
case CSH_LOOKUP("accept"):
out->rtcp_mux_accept = true;
break;
case CSH_LOOKUP("demux"):
out->rtcp_mux_demux = true;
break;
case CSH_LOOKUP("offer"):
out->rtcp_mux_offer = true;
break;
case CSH_LOOKUP("reject"):
out->rtcp_mux_reject = true;
break;
case CSH_LOOKUP("require"):
out->rtcp_mux_require = true;
break;
default:
ilog(LOG_WARN, "Unknown 'rtcp-mux' flag encountered: '" STR_FORMAT "'",
STR_FMT(s));
}
}
static void call_ng_flags_moh(const ng_parser_t *parser, str *key, parser_arg value, helper_arg arg) {
sdp_ng_flags *out = arg.flags;
switch (__csh_lookup(key)) {
case CSH_LOOKUP("db-id"):
out->moh_db_id = parser->get_int_str(value, out->moh_db_id);
break;
case CSH_LOOKUP("blob"):
parser->get_str(value, &out->moh_blob);
break;
case CSH_LOOKUP("file"):
parser->get_str(value, &out->moh_file);
break;
case CSH_LOOKUP("connection"):;
str connection = STR_NULL;
parser->get_str(value, &connection);
if (!str_cmp(&connection, "zero"))
out->moh_zero_connection = true;
break;
case CSH_LOOKUP("mode"):;
str mode = STR_NULL;
parser->get_str(value, &mode);
if (!str_cmp(&mode, "sendrecv"))
out->moh_sendrecv = true;
else if (!str_cmp(&mode, "reflect"))
out->moh_reflect = true;
break;
default:
ilog(LOG_WARN, "Unknown 'moh' flag encountered: '" STR_FORMAT "'",
STR_FMT(key));
}
}
static void call_ng_flags_replace(str *s, unsigned int idx, helper_arg arg) {
sdp_ng_flags *out = arg.flags;
switch (__csh_lookup(s)) {
case CSH_LOOKUP("force-increment-sdp-ver"):
case CSH_LOOKUP("force-increment-SDP-ver"):
case CSH_LOOKUP("force increment sdp ver"):
case CSH_LOOKUP("force increment SDP ver"):
out->force_inc_sdp_ver = true;
break;
case CSH_LOOKUP("origin"):
out->replace_origin = true;
break;
case CSH_LOOKUP("origin full"):
case CSH_LOOKUP("origin-full"):
case CSH_LOOKUP("origin_full"):
out->replace_origin_full = true;
break;
case CSH_LOOKUP("sdp-version"):
case CSH_LOOKUP("SDP-version"):
case CSH_LOOKUP("sdp version"):
case CSH_LOOKUP("SDP version"):
out->replace_sdp_version = true;
break;
/* TODO: after a while remove silent support for this flag */
case CSH_LOOKUP("session-connection"):
case CSH_LOOKUP("session connection"):
ilog(LOG_INFO, "replace-session-connection flag encountered, but not supported anymore.");
break;
case CSH_LOOKUP("session-name"):
case CSH_LOOKUP("session name"):
out->replace_sess_name = true;
break;
case CSH_LOOKUP("username"):
out->replace_username = true;
break;
case CSH_LOOKUP("zero-address"):
case CSH_LOOKUP("zero address"):
out->replace_zero_address = true;
break;
default:
ilog(LOG_WARN, "Unknown 'replace' flag encountered: '" STR_FORMAT "'",
STR_FMT(s));
}
}
static void call_ng_flags_supports(str *s, unsigned int idx, helper_arg arg) {
sdp_ng_flags *out = arg.flags;
if (!str_cmp(s, "load limit"))
out->supports_load_limit = true;
else
ilog(LOG_INFO | LOG_FLAG_LIMIT, "Optional feature '" STR_FORMAT "' not supported",
STR_FMT(s));
}
static str *str_dup_escape(const str *s) {
str *ret = str_dup(s);
int i;
while ((i = str_str(ret, "--")) >= 0) {
ret->s[i] = '=';
memmove(&ret->s[i + 1], &ret->s[i + 2], ret->len - i - 2);
ret->len--;
}
while ((i = str_str(ret, "..")) >= 0) {
ret->s[i] = ' ';
memmove(&ret->s[i + 1], &ret->s[i + 2], ret->len - i - 2);
ret->len--;
}
return ret;
}
static void call_ng_flags_esc_str_list(str *s, unsigned int idx, helper_arg arg) {
str *s_copy = str_dup_escape(s);
t_queue_push_tail(arg.q, s_copy);
}
/**
* Stores flag's value in the given GhashTable.
*/
static void call_ng_flags_str_ht(str *s, unsigned int idx, helper_arg arg) {
str *s_copy = str_dup_escape(s);
str_case_ht *ht = arg.sct;
if (!t_hash_table_is_set(*ht))
*ht = str_case_ht_new();
t_hash_table_replace(*ht, s_copy, s_copy);
}
/**
* Parses one-row flags separated by 'delimiter'.
* Stores parsed flag's values then in the given GQueue.
*/
static void call_ng_flags_str_q_multi(str *s, unsigned int idx, helper_arg arg) {
str *s_copy = str_dup_escape(s);
str token;
str_q *q = arg.q;
if (s_copy->len == 0)
ilog(LOG_DEBUG, "Hm, nothing to parse.");
while (str_token_sep(&token, s_copy, ';'))
{
str * ret = str_dup(&token);
t_queue_push_tail(q, ret);
}
free(s_copy);
}
#ifdef WITH_TRANSCODING
static void call_ng_flags_str_ht_split(str *s, unsigned int idx, helper_arg arg) {
str_case_value_ht *ht = arg.svt;
if (!t_hash_table_is_set(*ht))
*ht = str_case_value_ht_new();
str splitter = *s;
while (1) {
t_hash_table_replace(*ht, str_dup_escape(&splitter), str_dup_escape(s));
char *c = memrchr(splitter.s, '/', splitter.len);
if (!c)
break;
splitter.len = c - splitter.s;
}
}
#endif
static struct sdp_manipulations *call_ng_flags_sdp_attr_helper(str *s, sdp_ng_flags *flags) {
// get media type
str token;
if (!str_token(&token, s, '-'))
return NULL;
struct sdp_manipulations *sm = sdp_manipulations_get_by_name(flags->sdp_manipulations, &token);
if (!sm) {
ilog(LOG_WARN, "SDP manipulations: unsupported SDP section '" STR_FORMAT "' targeted.",
STR_FMT(&token));
return NULL;
}
return sm;
}
static void call_ng_flags_sdp_attr_helper_add(str *s, unsigned int idx, helper_arg arg) {
struct sdp_manipulations *sm = call_ng_flags_sdp_attr_helper(s, arg.flags);
if (!sm)
return;
call_ng_flags_esc_str_list(s, idx, &sm->add_commands);
}
static void call_ng_flags_sdp_attr_helper_remove(str *s, unsigned int idx, helper_arg arg) {
struct sdp_manipulations *sm = call_ng_flags_sdp_attr_helper(s, arg.flags);
if (!sm)
return;
call_ng_flags_str_ht(s, idx, &sm->rem_commands);
}
static void call_ng_flags_sdp_attr_helper_subst(str *s, unsigned int idx, helper_arg arg) {
struct sdp_manipulations *sm = call_ng_flags_sdp_attr_helper(s, arg.flags);
if (!sm)
return;
call_ng_flags_str_pair_ht(s, idx, &sm->subst_commands);
}
// helper to alias values from other dictionaries into the "flags" dictionary
INLINE int call_ng_flags_prefix(str *s_ori, const char *prefix,
void (*cb)(str *, unsigned int, helper_arg), helper_arg arg)
{
size_t len = strlen(prefix);
str s = *s_ori;
if (len > 0)
if (str_shift_cmp(&s, prefix))
return 0;
cb(&s, 0, arg);
return 1;
}
void call_ng_flags_flags(str *s, unsigned int idx, helper_arg arg) {
sdp_ng_flags *out = arg.flags;
switch (__csh_lookup(s)) {
case CSH_LOOKUP("all"):
out->all = ALL_ALL;
break;
case CSH_LOOKUP("allow-asymmetric-codecs"):
case CSH_LOOKUP("allow-asymmetric-codec"):
case CSH_LOOKUP("allow asymmetric codecs"):
case CSH_LOOKUP("allow asymmetric codec"):
out->allow_asymmetric_codecs = true;
break;
case CSH_LOOKUP("allow-no-codec-media"):
case CSH_LOOKUP("allow-no-codec-medias"):
case CSH_LOOKUP("allow-empty-codec-media"):
case CSH_LOOKUP("allow-empty-codec-medias"):
case CSH_LOOKUP("allow no codec media"):
case CSH_LOOKUP("allow no codec medias"):
case CSH_LOOKUP("allow empty codec media"):
case CSH_LOOKUP("allow empty codec medias"):
out->allow_no_codec_media = true;
break;
case CSH_LOOKUP("allow-transcoding"):
case CSH_LOOKUP("allow transcoding"):
out->allow_transcoding = true;
break;
case CSH_LOOKUP("force-transcoding"):
case CSH_LOOKUP("force transcoding"):
out->force_transcoding = true;
break;
case CSH_LOOKUP("always-transcode"):
case CSH_LOOKUP("always transcode"):;
static const str str_all = STR_CONST("all");
call_ng_flags_esc_str_list((str *) &str_all, 0, &out->codec_accept);
break;
case CSH_LOOKUP("asymmetric"):
out->asymmetric = true;
break;
case CSH_LOOKUP("asymmetric-codecs"):
case CSH_LOOKUP("asymmetric codecs"):
ilog(LOG_INFO, "Ignoring obsolete flag `asymmetric-codecs`");
break;
case CSH_LOOKUP("audio-player"):
case CSH_LOOKUP("audio player"):
case CSH_LOOKUP("player"):
out->audio_player = AP_TRANSCODING;
break;
case CSH_LOOKUP("block-dtmf"):
case CSH_LOOKUP("block-DTMF"):
case CSH_LOOKUP("block dtmf"):
case CSH_LOOKUP("block DTMF"):
out->block_dtmf = true;
break;
case CSH_LOOKUP("block-egress"):
case CSH_LOOKUP("block egress"):
out->block_egress = true;
break;
case CSH_LOOKUP("block-short"):
case CSH_LOOKUP("block-shorts"):
case CSH_LOOKUP("block-short-packets"):
case CSH_LOOKUP("block short"):
case CSH_LOOKUP("block shorts"):
case CSH_LOOKUP("block short packets"):
out->block_short = true;
break;
case CSH_LOOKUP("debug"):
case CSH_LOOKUP("debugging"):
out->debug = true;
break;
case CSH_LOOKUP("detect-DTMF"):
case CSH_LOOKUP("detect-dtmf"):
case CSH_LOOKUP("detect DTMF"):
case CSH_LOOKUP("detect dtmf"):
out->detect_dtmf = true;
break;
case CSH_LOOKUP("directional"):
out->directional = true;
break;
case CSH_LOOKUP("discard-recording"):
case CSH_LOOKUP("discard recording"):
out->discard_recording = true;
break;
case CSH_LOOKUP("early-media"):
case CSH_LOOKUP("early media"):
out->early_media = true;
break;
case CSH_LOOKUP("egress"):
out->egress = true;
break;
case CSH_LOOKUP("exclude-recording"):
case CSH_LOOKUP("exclude recording"):
out->exclude_recording = true;
break;
case CSH_LOOKUP("fatal"):
out->fatal = true;
break;
case CSH_LOOKUP("fragment"):
out->fragment = true;
break;
case CSH_LOOKUP("full-rtcp-attribute"):
case CSH_LOOKUP("full-RTCP-attribute"):
case CSH_LOOKUP("full rtcp attribute"):
case CSH_LOOKUP("full RTCP attribute"):
out->full_rtcp_attr = true;
break;
case CSH_LOOKUP("generate-mid"):
case CSH_LOOKUP("generate mid"):
out->generate_mid = true;
break;
case CSH_LOOKUP("generate-RTCP"):
case CSH_LOOKUP("generate-rtcp"):
case CSH_LOOKUP("generate RTCP"):
case CSH_LOOKUP("generate rtcp"):
out->generate_rtcp = true;
break;
case CSH_LOOKUP("ICE-reject"):
case CSH_LOOKUP("ice-reject"):
case CSH_LOOKUP("reject-ice"):
case CSH_LOOKUP("reject-ICE"):
case CSH_LOOKUP("ICE reject"):
case CSH_LOOKUP("ice reject"):
case CSH_LOOKUP("reject ice"):
case CSH_LOOKUP("reject ICE"):
out->ice_reject = true;
break;
case CSH_LOOKUP("inactive"):
out->inactive = true;
break;
case CSH_LOOKUP("inject-DTMF"):
case CSH_LOOKUP("inject-dtmf"):
case CSH_LOOKUP("inject DTMF"):
case CSH_LOOKUP("inject dtmf"):
out->inject_dtmf = true;
break;
case CSH_LOOKUP("loop-protect"):
case CSH_LOOKUP("loop protect"):
out->loop_protect = true;
break;
case CSH_LOOKUP("media-handover"):
case CSH_LOOKUP("media handover"):
out->media_handover = true;
break;
case CSH_LOOKUP("mirror-RTCP"):
case CSH_LOOKUP("mirror-rtcp"):
case CSH_LOOKUP("RTCP-mirror"):
case CSH_LOOKUP("rtcp-mirror"):
case CSH_LOOKUP("mirror RTCP"):
case CSH_LOOKUP("mirror rtcp"):
case CSH_LOOKUP("RTCP mirror"):
case CSH_LOOKUP("rtcp mirror"):
out->rtcp_mirror = true;
break;
case CSH_LOOKUP("NAT-wait"):
case CSH_LOOKUP("nat-wait"):
case CSH_LOOKUP("NAT wait"):
case CSH_LOOKUP("nat wait"):
out->nat_wait = true;
break;
case CSH_LOOKUP("new-branch"):
case CSH_LOOKUP("new branch"):
out->new_branch = true;
break;
case CSH_LOOKUP("no-codec-renegotiation"):
case CSH_LOOKUP("reuse-codecs"):
case CSH_LOOKUP("no codec renegotiation"):
case CSH_LOOKUP("reuse codecs"):
out->reuse_codec = true;
break;
case CSH_LOOKUP("no-passthrough"):
case CSH_LOOKUP("no passthrough"):
out->passthrough_off = true;
break;
case CSH_LOOKUP("no-player"):
case CSH_LOOKUP("no-audio-player"):
case CSH_LOOKUP("no player"):
case CSH_LOOKUP("no audio player"):
out->audio_player = AP_OFF;
break;
case CSH_LOOKUP("no-port-latching"):
case CSH_LOOKUP("no port latching"):
out->no_port_latching = true;
break;
case CSH_LOOKUP("no-redis-update"):
case CSH_LOOKUP("no redis update"):
out->no_redis_update = true;
break;
case CSH_LOOKUP("no-rtcp-attribute"):
case CSH_LOOKUP("no-RTCP-attribute"):
case CSH_LOOKUP("no rtcp attribute"):
case CSH_LOOKUP("no RTCP attribute"):
out->no_rtcp_attr = true;
break;
case CSH_LOOKUP("no-jitter-buffer"):
case CSH_LOOKUP("no jitter buffer"):
out->disable_jb = true;
break;
case CSH_LOOKUP("original-sendrecv"):
case CSH_LOOKUP("original sendrecv"):
out->original_sendrecv = true;
break;
case CSH_LOOKUP("pad-crypto"):
case CSH_LOOKUP("pad crypto"):
out->sdes_pad = true;
break;
case CSH_LOOKUP("passthrough"):
out->passthrough_on = true;
break;
case CSH_LOOKUP("pierce-NAT"):
case CSH_LOOKUP("pierce-nat"):
case CSH_LOOKUP("pierce NAT"):
case CSH_LOOKUP("pierce nat"):
out->pierce_nat = true;
break;
case CSH_LOOKUP("port-latching"):
case CSH_LOOKUP("port latching"):
out->port_latching = true;
break;
case CSH_LOOKUP("provisional"):
out->provisional = true;
break;
case CSH_LOOKUP("record-call"):
case CSH_LOOKUP("record call"):
out->record_call = true;
break;
case CSH_LOOKUP("recording-vsc"):
case CSH_LOOKUP("recording-VSC"):
case CSH_LOOKUP("recording vsc"):
case CSH_LOOKUP("recording VSC"):
out->recording_vsc = true;
break;
case CSH_LOOKUP("recording-announcement"):
case CSH_LOOKUP("recording announcement"):
out->recording_announcement = true;
break;
case CSH_LOOKUP("reorder-codecs"):
case CSH_LOOKUP("reorder codecs"):
ilog(LOG_INFO, "Ignoring obsolete flag `reorder-codecs`");
break;
case CSH_LOOKUP("reset"):
out->reset = true;
break;
case CSH_LOOKUP("single-codec"):
case CSH_LOOKUP("single codec"):
out->single_codec = true;
break;
case CSH_LOOKUP("SIP-source-address"):
case CSH_LOOKUP("sip-source-address"):
case CSH_LOOKUP("SIP source address"):
case CSH_LOOKUP("sip source address"):
out->trust_address = 0;
break;
case CSH_LOOKUP("SIPREC"):
case CSH_LOOKUP("siprec"):
out->siprec = true;
break;
case CSH_LOOKUP("skip-recording-db"):
case CSH_LOOKUP("skip-recording-database"):
case CSH_LOOKUP("skip recording db"):
case CSH_LOOKUP("skip recording database"):
out->skip_recording_db = true;
break;
case CSH_LOOKUP("static-codec"):
case CSH_LOOKUP("static-codecs"):
case CSH_LOOKUP("static codec"):
case CSH_LOOKUP("static codecs"):
out->static_codecs = true;
break;
case CSH_LOOKUP("strict-source"):
case CSH_LOOKUP("strict source"):
out->strict_source = true;
break;
case CSH_LOOKUP("strip-extmap"):
case CSH_LOOKUP("strip extmap"):
out->strip_extmap = true;
break;
case CSH_LOOKUP("symmetric-codecs"):
case CSH_LOOKUP("symmetric codecs"):
ilog(LOG_INFO, "Ignoring obsolete flag `symmetric-codecs`");
break;
case CSH_LOOKUP("to tag"):
case CSH_LOOKUP("to-tag"):
case CSH_LOOKUP("to_tag"):
/* including the “To” tag in the “delete” message allows to be more selective
* about monologues within a dialog to be torn down. */
out->to_tag_flag = true;
break;
case CSH_LOOKUP("trickle-ICE"):
case CSH_LOOKUP("trickle-ice"):
case CSH_LOOKUP("trickle ICE"):
case CSH_LOOKUP("trickle ice"):
out->trickle_ice = true;
break;
case CSH_LOOKUP("trust-address"):
case CSH_LOOKUP("trust address"):
out->trust_address = true;
break;
case CSH_LOOKUP("unidirectional"):
out->unidirectional = true;
break;
case CSH_LOOKUP("webrtc"):
case CSH_LOOKUP("webRTC"):
case CSH_LOOKUP("WebRTC"):
case CSH_LOOKUP("WebRtc"):
ng_flags_webrtc(out);
break;
default:
/* handle values aliases from other dictionaries */
if (call_ng_flags_prefix(s, "endpoint-learning-", ng_el_option, out))
return;
if (call_ng_flags_prefix(s, "from-tags-", call_ng_flags_esc_str_list,
&out->from_tags))
return;
/* OSRTP */
if (call_ng_flags_prefix(s, "OSRTP-", ng_osrtp_option, out))
return;
/* replacing SDP body parts */
if (call_ng_flags_prefix(s, "replace-", call_ng_flags_replace, out))
return;
/* rtcp-mux */
if (call_ng_flags_prefix(s, "rtcp-mux-", call_ng_flags_rtcp_mux, out))
return;
/* codec manipulations */
{
if (call_ng_flags_prefix(s, "codec-except-", call_ng_flags_str_ht,
&out->codec_except))
return;
if (call_ng_flags_prefix(s, "codec-offer-", call_ng_flags_esc_str_list,
&out->codec_offer))
return;
if (call_ng_flags_prefix(s, "codec-strip-", call_ng_flags_esc_str_list,
&out->codec_strip))
return;
if (call_ng_flags_prefix(s, "codec-ignore-", call_ng_flags_esc_str_list,
&out->codec_ignore))
return;
}
/* SDES */
{
if (call_ng_flags_prefix(s, "SDES-", ng_sdes_option, out))
return;
if (call_ng_flags_prefix(s, "SDES-offerer_pref:", call_ng_flags_str_q_multi,
&out->sdes_offerer_pref))
return;
if (call_ng_flags_prefix(s, "SDES-no-", call_ng_flags_str_ht, &out->sdes_no))
return;
if (call_ng_flags_prefix(s, "SDES-only-", call_ng_flags_str_ht, &out->sdes_only))
return;
if (call_ng_flags_prefix(s, "SDES-order:", call_ng_flags_str_q_multi, &out->sdes_order))
return;
}
/* SDP attributes manipulations */
{
if (call_ng_flags_prefix(s, "sdp-attr-add-", call_ng_flags_sdp_attr_helper_add, out))
return;
if (call_ng_flags_prefix(s, "sdp-attr-remove-", call_ng_flags_sdp_attr_helper_remove, out))
return;
if (call_ng_flags_prefix(s, "sdp-attr-substitute-", call_ng_flags_sdp_attr_helper_subst, out))
return;
}
#ifdef WITH_TRANSCODING
/* transcoding */
{
if (out->opmode == OP_OFFER || out->opmode == OP_SUBSCRIBE_REQ || out->opmode == OP_PUBLISH) {
if (call_ng_flags_prefix(s, "transcode-", call_ng_flags_esc_str_list,
&out->codec_transcode))
return;
if (call_ng_flags_prefix(s, "codec-transcode-", call_ng_flags_esc_str_list,
&out->codec_transcode))
return;
if (call_ng_flags_prefix(s, "codec-mask-", call_ng_flags_esc_str_list,
&out->codec_mask))
return;
if (call_ng_flags_prefix(s, "T38-", ng_t38_option, out))
return;
if (call_ng_flags_prefix(s, "T.38-", ng_t38_option, out))
return;
}
if (call_ng_flags_prefix(s, "codec-accept-", call_ng_flags_esc_str_list,
&out->codec_accept))
return;
if (call_ng_flags_prefix(s, "codec-consume-", call_ng_flags_esc_str_list,
&out->codec_consume))
return;
if (call_ng_flags_prefix(s, "codec-set-", call_ng_flags_str_ht_split,
&out->codec_set))
return;
}
#endif
ilog(LOG_WARN, "Unknown flag encountered: '" STR_FORMAT "'",
STR_FMT(s));
}
}
void call_ng_flags_init(sdp_ng_flags *out, enum ng_opmode opmode) {
ZERO(*out);
out->opmode = opmode;
out->trust_address = trust_address_def;
out->dtls_passive = dtls_passive_def;
out->dtls_reverse_passive = dtls_passive_def;
out->el_option = rtpe_config.endpoint_learning;
out->tos = 256;
out->delay_buffer = -1;
out->delete_delay = -1;
out->volume = 9999;
out->digit = -1;
out->repeat_duration = -1;
out->frequencies = g_array_new(false, false, sizeof(int));
for (int i = 0; i < __MT_MAX; ++i)
out->sdp_media_remove[i] = false;
out->t38_version = -1;
}
static void call_ng_direction_flag_iter(str *s, unsigned int i, helper_arg arg) {
if (i >= 2)
return;
arg.flags->direction[i] = *s;
}
void call_ng_direction_flag(const ng_parser_t *parser, sdp_ng_flags *flags, parser_arg value)
{
if (!parser->is_list(value))
return;
parser->list_iter(parser, value, call_ng_direction_flag_iter, NULL, flags);
}
void call_ng_codec_flags(const ng_parser_t *parser, str *key, parser_arg value, helper_arg arg) {
sdp_ng_flags *out = arg.flags;
switch (__csh_lookup(key)) {
case CSH_LOOKUP("except"):
call_ng_flags_str_list(parser, value, call_ng_flags_str_ht, &out->codec_except);
return;
case CSH_LOOKUP("offer"):
call_ng_flags_str_list(parser, value, call_ng_flags_esc_str_list, &out->codec_offer);
return;
case CSH_LOOKUP("strip"):
call_ng_flags_str_list(parser, value, call_ng_flags_esc_str_list, &out->codec_strip);
return;
case CSH_LOOKUP("ignore"):
call_ng_flags_str_list(parser, value, call_ng_flags_esc_str_list, &out->codec_ignore);
return;
}
#ifdef WITH_TRANSCODING
if (out->opmode == OP_OFFER || out->opmode == OP_SUBSCRIBE_REQ || out->opmode == OP_PUBLISH
|| out->opmode == OP_PLAY_MEDIA)
{
switch (__csh_lookup(key)) {
case CSH_LOOKUP("accept"):
call_ng_flags_str_list(parser, value, call_ng_flags_esc_str_list, &out->codec_accept);
return;
case CSH_LOOKUP("consume"):
call_ng_flags_str_list(parser, value, call_ng_flags_esc_str_list, &out->codec_consume);
return;
case CSH_LOOKUP("mask"):
call_ng_flags_str_list(parser, value, call_ng_flags_esc_str_list, &out->codec_mask);
return;
case CSH_LOOKUP("set"):
call_ng_flags_str_list(parser, value, call_ng_flags_str_ht_split, &out->codec_set);
return;
case CSH_LOOKUP("transcode"):
call_ng_flags_str_list(parser, value, call_ng_flags_esc_str_list,
&out->codec_transcode);
return;
}
}
else {
// silence warnings
switch (__csh_lookup(key)) {
case CSH_LOOKUP("accept"):
case CSH_LOOKUP("consume"):
case CSH_LOOKUP("mask"):
case CSH_LOOKUP("set"):
case CSH_LOOKUP("transcode"):
return;
}
}
#endif
ilog(LOG_WARN, "Unknown 'codec' operation encountered: '" STR_FORMAT "'", STR_FMT(key));
}
#ifdef WITH_TRANSCODING
static void call_ng_parse_block_mode(str *s, enum block_dtmf_mode *output) {
switch (__csh_lookup(s)) {
case CSH_LOOKUP("drop"):
*output = BLOCK_DTMF_DROP;
break;
case CSH_LOOKUP("DTMF"):
case CSH_LOOKUP("dtmf"):
*output = BLOCK_DTMF_DTMF;
break;
case CSH_LOOKUP("off"):
*output = BLOCK_DTMF_OFF;
break;
case CSH_LOOKUP("random"):
*output = BLOCK_DTMF_RANDOM;
break;
case CSH_LOOKUP("silence"):
*output = BLOCK_DTMF_SILENCE;
break;
case CSH_LOOKUP("tone"):
*output = BLOCK_DTMF_TONE;
break;
case CSH_LOOKUP("zero"):
*output = BLOCK_DTMF_ZERO;
break;
default:
ilog(LOG_WARN, "Unknown DTMF block mode encountered: '" STR_FORMAT "'",
STR_FMT(s));
}
}
#endif
static void call_ng_flags_freqs(const ng_parser_t *parser, parser_arg value, sdp_ng_flags *out);
static void call_ng_flags_freqs_iter(const ng_parser_t *parser, parser_arg item, helper_arg arg) {
call_ng_flags_freqs(parser, item, arg.flags);
}
static void call_ng_flags_freqs(const ng_parser_t *parser, parser_arg value, sdp_ng_flags *out) {
unsigned int val;
if (parser->is_int(value)) {
val = parser->get_int(value);
g_array_append_val(out->frequencies, val);
}
else if (parser->is_list(value))
parser->list_iter(parser, value, NULL, call_ng_flags_freqs_iter, out);
else {
val = parser->get_int_str(value, 0);
if (val)
g_array_append_val(out->frequencies, val);
else
ilog(LOG_WARN, "Invalid content type in `frequencies` list");
}
}
static void call_ng_received_from_string(sdp_ng_flags *flags, str *s) {
flags->received_from_family = STR_NULL;
flags->received_from_address = *s;
}
static void call_ng_received_from_iter(str *key, unsigned int i, helper_arg arg) {
switch (i) {
case 0:
arg.flags->received_from_family = *key;
break;
case 1:
arg.flags->received_from_address = *key;
break;
}
}
static void call_ng_payload_type(const ng_parser_t *parser, str *key, parser_arg value,
struct rtp_payload_type *pt)
{
str s = STR_NULL;
parser->get_str(value, &s);
switch (__csh_lookup(key)) {
case CSH_LOOKUP("codec"):
pt->encoding = s;
break;
case CSH_LOOKUP("payload type"):
pt->payload_type = parser->get_int_str(value, -1);
break;
case CSH_LOOKUP("clock rate"):
pt->clock_rate = parser->get_int_str(value, 0);
break;
case CSH_LOOKUP("channels"):
pt->channels = parser->get_int_str(value, 0);
break;
case CSH_LOOKUP("format"):
pt->format_parameters = s;
break;
case CSH_LOOKUP("options"):
pt->codec_opts = s;
break;
default:
ilog(LOG_WARN, "Unknown payload type key '" STR_FORMAT "'", STR_FMT(key));
}
}
static void call_ng_codec(const ng_parser_t *parser, str *key, parser_arg value, struct ng_codec *codec) {
switch (__csh_lookup(key)) {
case CSH_LOOKUP("input"):
parser->dict_iter(parser, value, call_ng_payload_type, &codec->input);
break;
case CSH_LOOKUP("output"):
parser->dict_iter(parser, value, call_ng_payload_type, &codec->output);
break;
default:
ilog(LOG_WARN, "Unknown codec key '" STR_FORMAT "'", STR_FMT(key));
}
}
static void call_ng_codec_iter(const ng_parser_t *parser, parser_arg item, struct ng_media *media) {
__auto_type codec = g_new0(struct ng_codec, 1);
t_queue_push_tail(&media->codecs, codec);
codec->input.payload_type = -1;
codec->output.payload_type = -1;
parser->dict_iter(parser, item, call_ng_codec, codec);
if (codec->input.payload_type == -1 || codec->output.payload_type == -1)
ilog(LOG_WARN, "Incomplete codec definition");
}
static void call_ng_endpoint(const ng_parser_t *parser, str *key, parser_arg value, struct ng_media *media) {
str s = STR_NULL;
parser->get_str(value, &s);
switch (__csh_lookup(key)) {
case CSH_LOOKUP("address"):
media->destination_address = s;
break;
case CSH_LOOKUP("family"):
case CSH_LOOKUP("address-family"):
case CSH_LOOKUP("address family"):
media->destination.address.family = get_socket_family_rfc(&s);
break;
case CSH_LOOKUP("port"):
media->destination.port = parser->get_int_str(value, 0);
break;
default:
ilog(LOG_WARN, "Unknown endpoint key '" STR_FORMAT "'", STR_FMT(key));
}
}
static void call_ng_media(const ng_parser_t *parser, str *key, parser_arg value, struct ng_media *media) {
str s = STR_NULL;
parser->get_str(value, &s);
switch (__csh_lookup(key)) {
case CSH_LOOKUP("codec"):
parser->list_iter(parser, value, NULL, call_ng_codec_iter, media);
break;
case CSH_LOOKUP("destination"):
parser->dict_iter(parser, value, call_ng_endpoint, media);
if (!media->destination.address.family)
ilog(LOG_ERR, "Destination address without family specified");
else
if (!sockaddr_parse_str(&media->destination.address, media->destination.address.family,
&media->destination_address))
ilog(LOG_ERR, "Failed to parse destination address '" STR_FORMAT "'",
STR_FMT(&media->destination_address));
break;
case CSH_LOOKUP("id"):
media->id = s;
break;
case CSH_LOOKUP("type"):
media->type = s;
break;
default:
ilog(LOG_WARN, "Unknown media key '" STR_FORMAT "'", STR_FMT(key));
}
}
static void call_ng_media_iter(const ng_parser_t *parser, parser_arg item, sdp_ng_flags *out) {
__auto_type media = g_new0(struct ng_media, 1);
t_queue_push_tail(&out->medias, media);
parser->dict_iter(parser, item, call_ng_media, media);
}
void call_ng_main_flags(const ng_parser_t *parser, str *key, parser_arg value, helper_arg arg) {
str s = STR_NULL;
sdp_ng_flags *out = arg.flags;
parser->get_str(value, &s);
switch (__csh_lookup(key)) {
case CSH_LOOKUP("address"):
out->address = s;
break;
case CSH_LOOKUP("address family"):
case CSH_LOOKUP("address-family"):
if (s.s) {
out->address_family_str = s;
out->address_family = get_socket_family_rfc(&out->address_family_str);
}
break;
case CSH_LOOKUP("all"):
switch (__csh_lookup_n(1, &s)) {
case CSH_LOOKUP_N(1, "all"):
out->all = ALL_ALL;
break;
case CSH_LOOKUP_N(1, "none"):
out->all = ALL_NONE;
break;
case CSH_LOOKUP_N(1, "offer-answer"):
out->all = ALL_OFFER_ANSWER;
break;
case CSH_LOOKUP_N(1, "not-offer-answer"):
case CSH_LOOKUP_N(1, "non-offer-answer"):
case CSH_LOOKUP_N(1, "except-offer-answer"):
out->all = ALL_NON_OFFER_ANSWER;
break;
case CSH_LOOKUP_N(1, "flows"):
out->all = ALL_FLOWS;
break;
default:
ilog(LOG_WARN, "Unknown 'all' flag encountered: '" STR_FORMAT "'",
STR_FMT(&s));
}
break;
case CSH_LOOKUP("audio-player"):
case CSH_LOOKUP("player"):
switch (__csh_lookup_n(1, &s)) {
case CSH_LOOKUP_N(1, "default"):
out->audio_player = AP_DEFAULT;
break;
case CSH_LOOKUP_N(1, "on"):
case CSH_LOOKUP_N(1, "yes"):
case CSH_LOOKUP_N(1, "enable"):
case CSH_LOOKUP_N(1, "enabled"):
case CSH_LOOKUP_N(1, "transcode"):
case CSH_LOOKUP_N(1, "transcoding"):
out->audio_player = AP_TRANSCODING;
break;
case CSH_LOOKUP_N(1, "no"):
case CSH_LOOKUP_N(1, "off"):
case CSH_LOOKUP_N(1, "disable"):
case CSH_LOOKUP_N(1, "disabled"):
out->audio_player = AP_OFF;
break;
case CSH_LOOKUP_N(1, "force"):
case CSH_LOOKUP_N(1, "forced"):
case CSH_LOOKUP_N(1, "always"):
case CSH_LOOKUP_N(1, "everything"):
out->audio_player = AP_FORCE;
break;
default:
ilog(LOG_WARN, "Unknown 'audio-player' flag encountered: '" STR_FORMAT "'",
STR_FMT(&s));
}
break;
case CSH_LOOKUP("blob"):
out->blob = s;
break;
case CSH_LOOKUP("call-id"):
case CSH_LOOKUP("call-ID"):
case CSH_LOOKUP("call id"):
case CSH_LOOKUP("call ID"):
out->call_id = s;
break;
case CSH_LOOKUP("code"):
case CSH_LOOKUP("digit"):
out->digit = parser->get_int_str(value, out->digit);
if (s.len == 1)
out->digit = s.s[0];
break;
case CSH_LOOKUP("codec"):
parser->dict_iter(parser, value, call_ng_codec_flags, out);
break;
case CSH_LOOKUP("command"):
break;
case CSH_LOOKUP("db-id"):
out->db_id = parser->get_int_str(value, out->db_id);
break;
case CSH_LOOKUP("delete delay"):
case CSH_LOOKUP("delete-delay"):
case CSH_LOOKUP("delete_delay"):
out->delete_delay = parser->get_int_str(value, out->delete_delay);
break;
case CSH_LOOKUP("direction"):
call_ng_direction_flag(parser, out, value);
break;
case CSH_LOOKUP("drop-traffic"):
case CSH_LOOKUP("drop traffic"):
switch (__csh_lookup_n(1, &s)) {
case CSH_LOOKUP_N(1, "start"):
out->drop_traffic_start = true;
break;
case CSH_LOOKUP_N(1, "stop"):
out->drop_traffic_stop = true;
break;
default:
ilog(LOG_WARN, "Unknown 'drop-traffic' flag encountered: '" STR_FORMAT "'",
STR_FMT(&s));
}
break;
case CSH_LOOKUP("DTLS"):
case CSH_LOOKUP("dtls"):
switch (__csh_lookup_n(1, &s)) {
case CSH_LOOKUP_N(1, "passive"):
out->dtls_passive = true;
break;
case CSH_LOOKUP_N(1, "active"):
out->dtls_passive = 0;
break;
case CSH_LOOKUP_N(1, "no"):
case CSH_LOOKUP_N(1, "off"):
case CSH_LOOKUP_N(1, "disabled"):
case CSH_LOOKUP_N(1, "disable"):
out->dtls_off = true;
break;
default:
ilog(LOG_WARN, "Unknown 'DTLS' flag encountered: '" STR_FORMAT "'",
STR_FMT(&s));
}
break;
case CSH_LOOKUP("DTLS fingerprint"):
case CSH_LOOKUP("DTLS-fingerprint"):
case CSH_LOOKUP("dtls fingerprint"):
case CSH_LOOKUP("dtls-fingerprint"):
out->dtls_fingerprint = s;
break;
case CSH_LOOKUP("DTLS-reverse"):
case CSH_LOOKUP("dtls-reverse"):
case CSH_LOOKUP("DTLS reverse"):
case CSH_LOOKUP("dtls reverse"):
switch (__csh_lookup_n(1, &s)) {
case CSH_LOOKUP_N(1, "passive"):
out->dtls_reverse_passive = true;
break;
case CSH_LOOKUP_N(1, "active"):
out->dtls_reverse_passive = 0;
break;
default:
ilog(LOG_WARN, "Unknown 'DTLS-reverse' flag encountered: '" STR_FORMAT "'",
STR_FMT(&s));
}
break;
case CSH_LOOKUP("DTMF-delay"):
case CSH_LOOKUP("DTMF delay"):
case CSH_LOOKUP("dtmf-delay"):
case CSH_LOOKUP("dtmf delay"):
out->dtmf_delay = parser->get_int_str(value, out->dtmf_delay);
break;
case CSH_LOOKUP("dtmf-log-dest"):
case CSH_LOOKUP("DTMF-log-dest"):
case CSH_LOOKUP("dtmf-log-destination"):
case CSH_LOOKUP("DTMF-log-destination"):
if (!endpoint_parse_any_str(&out->dtmf_log_dest, &s))
ilog(LOG_WARN, "Failed to parse 'dtmf-log-dest' address '" STR_FORMAT "'",
STR_FMT(&s));
break;
case CSH_LOOKUP("duration"):
out->duration = parser->get_int_str(value, out->duration);
break;
#ifdef WITH_TRANSCODING
case CSH_LOOKUP("DTMF-security"):
case CSH_LOOKUP("dtmf-security"):
case CSH_LOOKUP("DTMF security"):
case CSH_LOOKUP("dtmf security"):
call_ng_parse_block_mode(&s, &out->block_dtmf_mode);
break;
case CSH_LOOKUP("DTMF-security-trigger"):
case CSH_LOOKUP("dtmf-security-trigger"):
case CSH_LOOKUP("DTMF security trigger"):
case CSH_LOOKUP("dtmf security trigger"):
call_ng_parse_block_mode(&s, &out->block_dtmf_mode_trigger);
break;
case CSH_LOOKUP("DTMF-security-trigger-end"):
case CSH_LOOKUP("dtmf-security-trigger-end"):
case CSH_LOOKUP("DTMF security trigger end"):
case CSH_LOOKUP("dtmf security trigger end"):
call_ng_parse_block_mode(&s, &out->block_dtmf_mode_trigger_end);
break;
case CSH_LOOKUP("delay-buffer"):
case CSH_LOOKUP("delay buffer"):
out->delay_buffer = parser->get_int_str(value, out->delay_buffer);
break;
#endif
case CSH_LOOKUP("endpoint-learning"):
case CSH_LOOKUP("endpoint learning"):
call_ng_flags_str_list(parser, value, ng_el_option, out);
break;
case CSH_LOOKUP("file"):
out->file = s;
break;
case CSH_LOOKUP("frequency"):
case CSH_LOOKUP("frequencies"):
call_ng_flags_freqs(parser, value, out);
break;
case CSH_LOOKUP("from-interface"):
out->direction[0] = s;
break;
case CSH_LOOKUP("from-label"):
case CSH_LOOKUP("label"):
out->label = s;
break;
case CSH_LOOKUP("from-tag"):
out->from_tag = s;
break;
case CSH_LOOKUP("from-tags"):
call_ng_flags_str_list(parser, value, call_ng_flags_esc_str_list, &out->from_tags);
break;
case CSH_LOOKUP("flags"):
call_ng_flags_str_list(parser, value, call_ng_flags_flags, out);
break;
case CSH_LOOKUP("generate RTCP"):
case CSH_LOOKUP("generate-RTCP"):
case CSH_LOOKUP("generate rtcp"):
case CSH_LOOKUP("generate-rtcp"):
if (!str_cmp(&s, "on"))
out->generate_rtcp = true;
else if (!str_cmp(&s, "off"))
out->generate_rtcp_off = true;
break;
case CSH_LOOKUP("ICE"):
case CSH_LOOKUP("ice"):
switch (__csh_lookup_n(1, &s)) {
case CSH_LOOKUP_N(1, "remove"):
out->ice_option = ICE_REMOVE;
break;
case CSH_LOOKUP_N(1, "force"):
out->ice_option = ICE_FORCE;
break;
case CSH_LOOKUP_N(1, "default"):
out->ice_option = ICE_DEFAULT;
break;
case CSH_LOOKUP_N(1, "optional"):
out->ice_option = ICE_OPTIONAL;
break;
case CSH_LOOKUP_N(1, "force_relay"):
case CSH_LOOKUP_N(1, "force-relay"):
case CSH_LOOKUP_N(1, "force relay"):
out->ice_option = ICE_FORCE_RELAY;
break;
default:
ilog(LOG_WARN, "Unknown 'ICE' flag encountered: '" STR_FORMAT "'",
STR_FMT(&s));
}
break;
case CSH_LOOKUP("ICE-lite"):
case CSH_LOOKUP("ice-lite"):
case CSH_LOOKUP("ICE lite"):
case CSH_LOOKUP("ice lite"):
switch (__csh_lookup_n(1, &s)) {
case CSH_LOOKUP_N(1, "off"):
case CSH_LOOKUP_N(1, "none"):
case CSH_LOOKUP_N(1, "no"):
out->ice_lite_option = ICE_LITE_OFF;
break;
case CSH_LOOKUP_N(1, "forward"):
case CSH_LOOKUP_N(1, "offer"):
case CSH_LOOKUP_N(1, "fwd"):
case CSH_LOOKUP_N(1, "fw"):
out->ice_lite_option = ICE_LITE_FWD;
break;
case CSH_LOOKUP_N(1, "backward"):
case CSH_LOOKUP_N(1, "backwards"):
case CSH_LOOKUP_N(1, "reverse"):
case CSH_LOOKUP_N(1, "answer"):
case CSH_LOOKUP_N(1, "back"):
case CSH_LOOKUP_N(1, "bkw"):
case CSH_LOOKUP_N(1, "bk"):
out->ice_lite_option = ICE_LITE_BKW;
break;
case CSH_LOOKUP_N(1, "both"):
out->ice_lite_option = ICE_LITE_BOTH;
break;
default:
ilog(LOG_WARN, "Unknown 'ICE-lite' flag encountered: '" STR_FORMAT "'",
STR_FMT(&s));
}
break;
case CSH_LOOKUP("interface"):
out->interface = s;
break;
case CSH_LOOKUP("instance"):
out->instance = s;
break;
case CSH_LOOKUP("media address"):
case CSH_LOOKUP("media-address"):
if (!sockaddr_parse_any_str(&out->media_address, &s))
ilog(LOG_WARN, "Could not parse 'media-address'");
break;
case CSH_LOOKUP("media"):
parser->list_iter(parser, value, NULL, call_ng_media_iter, out);
break;
case CSH_LOOKUP("media echo"):
case CSH_LOOKUP("media-echo"):
switch (__csh_lookup_n(1, &s)) {
case CSH_LOOKUP_N(1, "blackhole"):
case CSH_LOOKUP_N(1, "sinkhole"):
out->media_echo = MEO_BLACKHOLE;
break;
case CSH_LOOKUP_N(1, "forward"):
case CSH_LOOKUP_N(1, "fwd"):
case CSH_LOOKUP_N(1, "fw"):
out->media_echo = MEO_FWD;
break;
case CSH_LOOKUP_N(1, "backward"):
case CSH_LOOKUP_N(1, "backwards"):
case CSH_LOOKUP_N(1, "reverse"):
case CSH_LOOKUP_N(1, "back"):
case CSH_LOOKUP_N(1, "bkw"):
case CSH_LOOKUP_N(1, "bk"):
out->media_echo = MEO_BKW;
break;
case CSH_LOOKUP_N(1, "both"):
out->media_echo = MEO_BOTH;
break;
default:
ilog(LOG_WARN, "Unknown 'media-echo' flag encountered: '" STR_FORMAT "'",
STR_FMT(&s));
}
break;
case CSH_LOOKUP("metadata"):
out->metadata = s;
break;
case CSH_LOOKUP("moh"):
case CSH_LOOKUP("MoH"):
case CSH_LOOKUP("MOH"):
parser->dict_iter(parser, value, call_ng_flags_moh, out);
break;
case CSH_LOOKUP("OSRTP"):
case CSH_LOOKUP("osrtp"):
call_ng_flags_str_list(parser, value, ng_osrtp_option, out);
break;
case CSH_LOOKUP("output-destination"):
case CSH_LOOKUP("output-dest"):
case CSH_LOOKUP("output-file"):
case CSH_LOOKUP("recording-destination"):
case CSH_LOOKUP("recording-dest"):
case CSH_LOOKUP("recording-file"):
case CSH_LOOKUP("output destination"):
case CSH_LOOKUP("output dest"):
case CSH_LOOKUP("output file"):
case CSH_LOOKUP("recording destination"):
case CSH_LOOKUP("recording dest"):
case CSH_LOOKUP("recording file"):
out->recording_file = s;
break;
case CSH_LOOKUP("recording-media-slot-offer"):
// This needs to be > 0
//out->media_rec_slot_offer = bencode_get_integer_str(value, out->media_rec_slot_offer);
out->media_rec_slot_offer = parser->get_int_str(value, out->media_rec_slot_offer);
break;
case CSH_LOOKUP("recording-media-slot-answer"):
// This needs to be > 0
out->media_rec_slot_answer = parser->get_int_str(value, out->media_rec_slot_answer);
break;
case CSH_LOOKUP("recording-media-slots"):
out->media_rec_slots = parser->get_int_str(value, out->media_rec_slots);
break;
case CSH_LOOKUP("passthrough"):
case CSH_LOOKUP("passthru"):
switch (__csh_lookup_n(1, &s)) {
case CSH_LOOKUP_N(1, "on"):
case CSH_LOOKUP_N(1, "yes"):
case CSH_LOOKUP_N(1, "enable"):
case CSH_LOOKUP_N(1, "enabled"):
out->passthrough_on = true;
break;
case CSH_LOOKUP_N(1, "no"):
case CSH_LOOKUP_N(1, "off"):
case CSH_LOOKUP_N(1, "disable"):
case CSH_LOOKUP_N(1, "disabled"):
out->passthrough_off = true;
break;
default:
ilog(LOG_WARN, "Unknown 'passthrough' flag encountered: '" STR_FORMAT "'",
STR_FMT(&s));
}
break;
case CSH_LOOKUP("pause"):
out->pause = parser->get_int_str(value, out->pause);
break;
case CSH_LOOKUP("ptime"):
if (out->opmode == OP_OFFER)
out->ptime = parser->get_int_str(value, 0);
break;
case CSH_LOOKUP("ptime-reverse"):
case CSH_LOOKUP("ptime reverse"):
case CSH_LOOKUP("reverse ptime"):
case CSH_LOOKUP("reverse-ptime"):
if (out->opmode == OP_OFFER)
out->rev_ptime = parser->get_int_str(value, 0);
break;
case CSH_LOOKUP("received from"):
case CSH_LOOKUP("received-from"):
if (!parser->is_list(value)) {
call_ng_received_from_string(out, &s);
break;
}
parser->list_iter(parser, value, call_ng_received_from_iter, NULL, out);
break;
case CSH_LOOKUP("record call"):
case CSH_LOOKUP("record-call"):
out->record_call_str = s;
break;
case CSH_LOOKUP("recording path"):
case CSH_LOOKUP("recording dir"):
case CSH_LOOKUP("recording directory"):
case CSH_LOOKUP("recording folder"):
case CSH_LOOKUP("output path"):
case CSH_LOOKUP("output dir"):
case CSH_LOOKUP("output directory"):
case CSH_LOOKUP("output folder"):
case CSH_LOOKUP("recording-path"):
case CSH_LOOKUP("recording-dir"):
case CSH_LOOKUP("recording-directory"):
case CSH_LOOKUP("recording-folder"):
case CSH_LOOKUP("output-path"):
case CSH_LOOKUP("output-dir"):
case CSH_LOOKUP("output-directory"):
case CSH_LOOKUP("output-folder"):
out->recording_path = s;
break;
case CSH_LOOKUP("recording pattern"):
case CSH_LOOKUP("recording-pattern"):
case CSH_LOOKUP("output pattern"):
case CSH_LOOKUP("output-pattern"):
out->recording_pattern = s;
break;
case CSH_LOOKUP("repeat-times"):
out->repeat_times = parser->get_int_str(value, out->repeat_times);
break;
case CSH_LOOKUP("repeat-duration"):
out->repeat_duration = parser->get_int_str(value, out->repeat_duration);
break;
case CSH_LOOKUP("replace"):
call_ng_flags_str_list(parser, value, call_ng_flags_replace, out);
break;
case CSH_LOOKUP("rtcp-mux"):
case CSH_LOOKUP("RTCP-mux"):
call_ng_flags_str_list(parser, value, call_ng_flags_rtcp_mux, out);
break;
case CSH_LOOKUP("rtpp-flags"):
case CSH_LOOKUP("rtpp_flags"):;
/* s - list of rtpp flags */
parse_rtpp_flags(&s, out);
break;
case CSH_LOOKUP("SDES"):
case CSH_LOOKUP("sdes"):
call_ng_flags_str_list(parser, value, ng_sdes_option, out);
break;
case CSH_LOOKUP("SDP"):
case CSH_LOOKUP("sdp"):
out->sdp = s;
break;
case CSH_LOOKUP("sdp-attr"):
case CSH_LOOKUP("SDP-attr"):
ng_sdp_attr_manipulations(parser, out, value);
break;
case CSH_LOOKUP("sdp-media-remove"):
case CSH_LOOKUP("SDP-media-remove"):
case CSH_LOOKUP("sdp_media_remove"):
case CSH_LOOKUP("SDP_media_remove"):
ng_sdp_media_remove(parser, out, value);
break;
case CSH_LOOKUP("set-label"):
out->set_label = s;
break;
case CSH_LOOKUP("sip-code"):
case CSH_LOOKUP("sip_code"):
case CSH_LOOKUP("SIP-code"):
case CSH_LOOKUP("SIP_code"):
case CSH_LOOKUP("sip-response-code"):
case CSH_LOOKUP("sip_response_code"):
case CSH_LOOKUP("SIP-response-code"):
case CSH_LOOKUP("SIP_response_code"):
out->code = parser->get_int_str(value, out->code);
break;
case CSH_LOOKUP("sip-message-type"):
case CSH_LOOKUP("sip_message_type"):
case CSH_LOOKUP("SIP-message-type"):
case CSH_LOOKUP("SIP_message_type"):
switch (__csh_lookup_n(1, &s)) {
case CSH_LOOKUP_N(1, "request"):
case CSH_LOOKUP_N(1, "sip-request"):
case CSH_LOOKUP_N(1, "sip_request"):
case CSH_LOOKUP_N(1, "SIP-request"):
case CSH_LOOKUP_N(1, "SIP_request"):
out->message_type = SIP_REQUEST;
break;
case CSH_LOOKUP_N(1, "reply"):
case CSH_LOOKUP_N(1, "sip-response"):
case CSH_LOOKUP_N(1, "sip_response"):
case CSH_LOOKUP_N(1, "SIP-response"):
case CSH_LOOKUP_N(1, "SIP_response"):
case CSH_LOOKUP_N(1, "sip-reply"):
case CSH_LOOKUP_N(1, "sip_reply"):
case CSH_LOOKUP_N(1, "SIP-reply"):
case CSH_LOOKUP_N(1, "SIP_reply"):
out->message_type = SIP_REPLY;
break;
default:
ilog(LOG_WARN, "Unknown 'sip-message-type' flag encountered: '" STR_FORMAT "'",
STR_FMT(&s));
}
break;
case CSH_LOOKUP("start-pos"):
out->start_pos = parser->get_int_str(value, out->start_pos);
break;
case CSH_LOOKUP("supports"):
call_ng_flags_str_list(parser, value, call_ng_flags_supports, out);
break;
#ifdef WITH_TRANSCODING
case CSH_LOOKUP("T38"):
case CSH_LOOKUP("T.38"):
case CSH_LOOKUP("t38"):
case CSH_LOOKUP("t.38"):
call_ng_flags_str_list(parser, value, ng_t38_option, out);
break;
case CSH_LOOKUP("T38-version"):
case CSH_LOOKUP("T.38-version"):
case CSH_LOOKUP("t38-version"):
case CSH_LOOKUP("t.38-version"):
case CSH_LOOKUP("T38 version"):
case CSH_LOOKUP("T.38 version"):
case CSH_LOOKUP("t38 version"):
case CSH_LOOKUP("t.38 version"):
out->t38_version = parser->get_int_str(value, out->t38_version);
break;
#endif
case CSH_LOOKUP("template"):;
str *tplate = t_hash_table_lookup(rtpe_signalling_templates, &s);
if (!tplate) {
ilog(LOG_WARN, "Templates for signalling flags '" STR_FORMAT "' not found",
STR_FMT(&s));
break;
}
// naive approach: just parse them out every time
// TODO: improve this by pre-parsing the flags at startup
parse_rtpp_flags(tplate, out);
break;
case CSH_LOOKUP("to-interface"):
out->direction[1] = s;
break;
case CSH_LOOKUP("to-label"):
out->to_label = s;
break;
case CSH_LOOKUP("to-call-id"):
out->to_call_id = s;
break;
case CSH_LOOKUP("to-tag"):
out->to_tag = s;
break;
case CSH_LOOKUP("TOS"):
case CSH_LOOKUP("tos"):
out->tos = parser->get_int_str(value, out->tos);
break;
case CSH_LOOKUP("transport protocol"):
case CSH_LOOKUP("transport-protocol"):
if (!str_cmp(&s, "accept"))
out->protocol_accept = true;
else
out->transport_protocol = transport_protocol(&s);
break;
case CSH_LOOKUP("trigger"):
out->trigger = s;
break;
case CSH_LOOKUP("trigger-end"):
case CSH_LOOKUP("trigger end"):
case CSH_LOOKUP("end trigger"):
case CSH_LOOKUP("end-trigger"):
out->trigger_end = s;
break;
case CSH_LOOKUP("trigger-end-time"):
case CSH_LOOKUP("trigger end time"):
case CSH_LOOKUP("end-trigger-time"):
case CSH_LOOKUP("end trigger time"):
out->trigger_end_ms = parser->get_int_str(value, out->trigger_end_ms);
break;
case CSH_LOOKUP("trigger-end-digits"):
case CSH_LOOKUP("trigger end digits"):
case CSH_LOOKUP("end-trigger-digits"):
case CSH_LOOKUP("end trigger digits"):
out->trigger_end_digits = parser->get_int_str(value, out->trigger_end_digits);
break;
case CSH_LOOKUP("via-branch"):
out->via_branch = s;
break;
case CSH_LOOKUP("volume"):
out->volume = parser->get_int_str(value, out->volume);
break;
case CSH_LOOKUP("vsc-pause-rec"):
case CSH_LOOKUP("VSC-pause-rec"):
case CSH_LOOKUP("vsc-pause-recording"):
case CSH_LOOKUP("VSC-pause-recording"):
out->vsc_pause_rec = s;
break;
case CSH_LOOKUP("vsc-pause-resume-rec"):
case CSH_LOOKUP("VSC-pause-resume-rec"):
case CSH_LOOKUP("vsc-pause-resume-recording"):
case CSH_LOOKUP("VSC-pause-resume-recording"):
out->vsc_pause_resume_rec = s;
break;
case CSH_LOOKUP("vsc-start-pause-resume-rec"):
case CSH_LOOKUP("VSC-start-pause-resume-rec"):
case CSH_LOOKUP("vsc-start-pause-resume-recording"):
case CSH_LOOKUP("VSC-start-pause-resume-recording"):
out->vsc_start_pause_resume_rec = s;
break;
case CSH_LOOKUP("vsc-start-rec"):
case CSH_LOOKUP("VSC-start-rec"):
case CSH_LOOKUP("vsc-start-recording"):
case CSH_LOOKUP("VSC-start-recording"):
out->vsc_start_rec = s;
break;
case CSH_LOOKUP("vsc-start-stop-rec"):
case CSH_LOOKUP("VSC-start-stop-rec"):
case CSH_LOOKUP("vsc-start-stop-recording"):
case CSH_LOOKUP("VSC-start-stop-recording"):
out->vsc_start_stop_rec = s;
break;
case CSH_LOOKUP("vsc-stop-rec"):
case CSH_LOOKUP("VSC-stop-rec"):
case CSH_LOOKUP("vsc-stop-recording"):
case CSH_LOOKUP("VSC-stop-recording"):
out->vsc_stop_rec = s;
break;
case CSH_LOOKUP("xmlrpc-callback"):
case CSH_LOOKUP("XMLRPC-callback"):
if (!sockaddr_parse_any_str(&out->xmlrpc_callback, &s))
ilog(LOG_WARN, "Failed to parse 'xmlrpc-callback' address '" STR_FORMAT "'",
STR_FMT(&s));
break;
default:
ilog(LOG_WARN, "Unknown dictionary key encountered: '" STR_FORMAT "'", STR_FMT(key));
}
}
static void call_ng_process_flags(sdp_ng_flags *out, ng_command_ctx_t *ctx) {
const ng_parser_t *parser = ctx->parser_ctx.parser;
call_ng_flags_init(out, ctx->opmode);
ctx->flags = out;
// check for default templates, "default" first
if (rtpe_default_signalling_templates[OP_OTHER].len)
parse_rtpp_flags(&rtpe_default_signalling_templates[OP_OTHER], out);
// and then one matching the current command
if (ctx->opmode != OP_OTHER && rtpe_default_signalling_templates[ctx->opmode].len)
parse_rtpp_flags(&rtpe_default_signalling_templates[ctx->opmode], out);
parser->dict_iter(parser, ctx->req, call_ng_main_flags, out);
}
static void ng_sdp_attr_manipulations_free(struct sdp_manipulations * array[__MT_MAX]) {
for (int i = 0; i < __MT_MAX; i++) {
struct sdp_manipulations *sdp_manipulations = array[i];
if (!sdp_manipulations)
continue;
str_case_ht_destroy_ptr(&sdp_manipulations->rem_commands);
str_case_value_ht_destroy_ptr(&sdp_manipulations->subst_commands);
t_queue_clear_full(&sdp_manipulations->add_commands, str_free);
g_free(sdp_manipulations);
array[i] = NULL;
}
}
static void ng_codecs_free(struct ng_codec *c) {
g_free(c);
}
static void ng_media_free(struct ng_media *m) {
t_queue_clear_full(&m->codecs, ng_codecs_free);
g_free(m);
}
void call_ng_free_flags(sdp_ng_flags *flags) {
str_case_value_ht_destroy_ptr(&flags->codec_set);
if (flags->frequencies)
g_array_free(flags->frequencies, true);
#define X(x) t_queue_clear_full(&flags->x, str_free);
RTPE_NG_FLAGS_STR_Q_PARAMS
#undef X
#define X(x) t_queue_clear_full(&flags->x, sdp_attr_free);
RTPE_NG_FLAGS_SDP_ATTR_Q_PARAMS
#undef X
#define X(x) str_case_ht_destroy_ptr(&flags->x);
RTPE_NG_FLAGS_STR_CASE_HT_PARAMS
#undef X
ng_sdp_attr_manipulations_free(flags->sdp_manipulations);
t_queue_clear_full(&flags->medias, ng_media_free);
}
static enum load_limit_reasons call_offer_session_limit(void) {
enum load_limit_reasons ret = LOAD_LIMIT_NONE;
if (atomic_get_na(&rtpe_config.max_sessions) >= 0) {
rwlock_lock_r(&rtpe_callhash_lock);
if (t_hash_table_size(rtpe_callhash) -
atomic64_get(&rtpe_stats_gauge.foreign_sessions) >= rtpe_config.max_sessions)
{
/* foreign calls can't get rejected
* total_rejected_sess applies only to "own" sessions */
RTPE_STATS_INC(rejected_sess);
ilog(LOG_ERROR, "Parallel session limit reached (%i)",rtpe_config.max_sessions);
ret = LOAD_LIMIT_MAX_SESSIONS;
}
rwlock_unlock_r(&rtpe_callhash_lock);
}
if (ret == LOAD_LIMIT_NONE && atomic_get_na(&rtpe_config.load_limit)) {
int loadavg = g_atomic_int_get(&load_average);
if (loadavg >= atomic_get_na(&rtpe_config.load_limit)) {
ilog(LOG_WARN, "Load limit exceeded (%.2f > %.2f)",
(double) loadavg / 100.0, (double) rtpe_config.load_limit / 100.0);
ret = LOAD_LIMIT_LOAD;
}
}
if (ret == LOAD_LIMIT_NONE && atomic_get_na(&rtpe_config.cpu_limit)) {
int cpu = g_atomic_int_get(&cpu_usage);
if (cpu >= atomic_get_na(&rtpe_config.cpu_limit)) {
ilog(LOG_WARN, "CPU usage limit exceeded (%.1f%% > %.1f%%)",
(double) cpu / 100.0, (double) rtpe_config.cpu_limit / 100.0);
ret = LOAD_LIMIT_CPU;
}
}
if (ret == LOAD_LIMIT_NONE && atomic_get_na(&rtpe_config.bw_limit)) {
uint64_t bw = atomic64_get(&rtpe_stats_rate.bytes_user) +
atomic64_get(&rtpe_stats_rate.bytes_kernel);
if (bw >= atomic_get_na(&rtpe_config.bw_limit)) {
ilog(LOG_WARN, "Bandwidth limit exceeded (%" PRIu64 " > %" PRIu64 ")",
bw, rtpe_config.bw_limit);
ret = LOAD_LIMIT_BW;
}
}
return ret;
}
void save_last_sdp(struct call_monologue *ml, str *sdp, sdp_sessions_q *parsed, sdp_streams_q *streams) {
sdp_streams_clear(&ml->last_in_sdp_streams);
ml->last_in_sdp_streams = *streams;
t_queue_init(streams);
}
static enum basic_errors call_ng_basic_checks(sdp_ng_flags *flags)
{
if (!flags->sdp.s)
return NG_ERROR_NO_SDP_BODY;
if (!flags->call_id.s)
return NG_ERROR_NO_CALL_ID;
if (!flags->from_tag.s)
return NG_ERROR_NO_FROM_TAG;
if (flags->opmode == OP_ANSWER && !flags->to_tag.s)
return NG_ERROR_NO_TO_TAG;
return 0;
}
static const char *call_offer_get_call(call_t **callp, sdp_ng_flags *flags) {
// are we allowed to create a call? use `errstr` to determine
const char *errstr = NULL; // creation is allowed
enum load_limit_reasons limit = call_offer_session_limit();
if (limit != LOAD_LIMIT_NONE) {
if (!flags->supports_load_limit)
errstr = "Parallel session limit reached"; // legacy protocol
else
errstr = magic_load_limit_strings[limit];
// errstr is set, creation not allowed
}
if (!errstr)
*callp = call_get_or_create(&flags->call_id, false);
else {
*callp = call_get(&flags->call_id);
if (!*callp)
return errstr;
}
return NULL;
}
static const char *call_offer_answer_ng(ng_command_ctx_t *ctx, const char* addr,
const endpoint_t *sin)
{
const char *errstr;
str sdp = STR_NULL;
g_auto(sdp_sessions_q) parsed = TYPED_GQUEUE_INIT;
g_auto(sdp_streams_q) streams = TYPED_GQUEUE_INIT;
g_autoptr(call_t) call = NULL;
struct call_monologue * monologues[2];
int ret;
g_auto(sdp_ng_flags) flags;
parser_arg output = ctx->resp;
const ng_parser_t *parser = ctx->parser_ctx.parser;
g_auto(str) sdp_out = STR_NULL;
call_ng_process_flags(&flags, ctx);
if ((ret = call_ng_basic_checks(&flags)) > 0)
return _ng_basic_errors[ret];
if (flags.opmode == OP_OFFER) {
errstr = call_offer_get_call(&call, &flags);
if (errstr)
goto out;
}
else if (flags.opmode == OP_ANSWER) {
call = call_get(&flags.call_id);
errstr = "Unknown call-id";
if (!call)
goto out;
/* for answer: swap To against From tag */
str_swap(&flags.to_tag, &flags.from_tag);
}
sdp = call_str_cpy(&flags.sdp);
errstr = "Failed to parse SDP";
if (sdp_parse(&sdp, &parsed, &flags))
goto out;
if (flags.loop_protect && sdp_is_duplicate(&parsed)) {
ilog(LOG_INFO, "Ignoring message as SDP has already been processed by us");
parser->dict_add_str(output, "sdp", &flags.sdp);
errstr = NULL;
goto out;
}
errstr = "Incomplete SDP specification";
if (sdp_streams(&parsed, &streams, &flags))
goto out;
// SDP fragments for trickle ICE must always operate on an existing call
if (flags.opmode == OP_OFFER && trickle_ice_update(ctx->ngbuf, call, &flags, &streams)) {
errstr = NULL;
// SDP fragments for trickle ICE are consumed with no replacement returned
goto out;
}
if (flags.debug)
CALL_SET(call, DEBUG);
if (rtpe_config.active_switchover && IS_FOREIGN_CALL(call))
call_make_own_foreign(call, false);
updated_created_from(call, addr, sin);
if (flags.xmlrpc_callback.family)
call->xmlrpc_callback = flags.xmlrpc_callback;
if (flags.dtmf_log_dest.address.family)
call->dtmf_log_dest = flags.dtmf_log_dest;
/* At least the random ICE strings are contained within the call struct, so we
* need to hold a ref until we're done sending the reply */
call_ngb_hold_ref(call, ctx->ngbuf);
errstr = "Invalid dialogue association";
if (call_get_mono_dialogue(monologues, call, &flags.from_tag, &flags.to_tag,
flags.via_branch.s ? &flags.via_branch : NULL, &flags)) {
goto out;
}
struct call_monologue *from_ml = monologues[0];
struct call_monologue *to_ml = monologues[1];
if (flags.opmode == OP_OFFER) {
from_ml->tagtype = FROM_TAG;
} else {
from_ml->tagtype = TO_TAG;
}
if (flags.drop_traffic_start) {
CALL_SET(call, DROP_TRAFFIC);
}
else if (flags.drop_traffic_stop) {
CALL_CLEAR(call, DROP_TRAFFIC);
}
if (flags.block_dtmf)
call_set_dtmf_block(call, monologues[0], &flags);
struct recording *recording = NULL;
/* offer/answer model processing */
if ((ret = monologue_offer_answer(monologues, &streams, &flags)) == 0) {
update_metadata_monologue(from_ml, &flags);
detect_setup_recording(call, &flags);
recording = call->recording;
meta_write_sdp_before(recording, &sdp, from_ml, flags.opmode);
/* check if sender's monologue has any audio medias putting the call
* into the sendonly state, if so, check if it wants this call
* to be provided with moh playbacks */
errstr = call_check_moh(from_ml, to_ml, &flags);
if (errstr)
goto out;
/* if all fine, prepare an outer sdp and save it */
if ((ret = sdp_create(&sdp_out, to_ml, &flags)) == 0) {
/* TODO: should we save sdp_out? */
save_last_sdp(from_ml, &sdp, &parsed, &streams);
}
/* place return output SDP */
if (sdp_out.len) {
ctx->ngbuf->sdp_out = sdp_out.s;
ctx->parser_ctx.parser->dict_add_str(output, "sdp", &sdp_out);
meta_write_sdp_after(recording, &sdp_out, from_ml, flags.opmode);
sdp_out = STR_NULL; /* ownership passed to output */
}
}
recording_response(recording, ctx->parser_ctx.parser, output);
dequeue_sdp_fragments(from_ml);
rwlock_unlock_w(&call->master_lock);
if (!flags.no_redis_update) {
redis_update_onekey(call, rtpe_redis_write);
} else {
ilog(LOG_DEBUG, "Not updating Redis due to present no-redis-update flag");
}
from_ml->started = rtpe_now;
errstr = "Error rewriting SDP";
if (ret == ERROR_NO_FREE_PORTS || ret == ERROR_NO_FREE_LOGS) {
ilog(LOG_ERR, "Destroying call");
errstr = "Ran out of ports";
call_destroy(call);
}
obj_release(call);
if (ret)
goto out;
errstr = NULL;
out:
return errstr;
}
const char *call_offer_ng(ng_command_ctx_t *ctx,
const char* addr,
const endpoint_t *sin)
{
return call_offer_answer_ng(ctx, addr, sin);
}
const char *call_answer_ng(ng_command_ctx_t *ctx) {
return call_offer_answer_ng(ctx, NULL, NULL);
}
const char *call_delete_ng(ng_command_ctx_t *ctx) {
g_auto(sdp_ng_flags) rtpp_flags;
parser_arg output = ctx->resp;
const ng_parser_t *parser = ctx->parser_ctx.parser;
call_ng_process_flags(&rtpp_flags, ctx);
if (!rtpp_flags.call_id.len)
return "No call-id in message";
call_t *c = call_get(&rtpp_flags.call_id);
if (!c)
goto err;
if (rtpp_flags.discard_recording)
recording_discard(c);
if (call_delete_branch(c, &rtpp_flags.via_branch,
&rtpp_flags.from_tag,
(rtpp_flags.to_tag_flag ? &rtpp_flags.to_tag : NULL),
ctx, rtpp_flags.delete_delay))
{
goto err;
}
return NULL;
err:
if (rtpp_flags.fatal)
return "Call-ID not found or tags didn't match";
parser->dict_add_string(output, "warning", "Call-ID not found or tags didn't match");
return NULL;
}
static void ng_stats(ng_command_ctx_t *ctx, parser_arg dict, const char *dict_name,
const struct stream_stats *s,
struct stream_stats *totals)
{
if (ctx) {
const ng_parser_t *parser = ctx->parser_ctx.parser;
parser_arg d = parser->dict_add_dict(dict, dict_name);
parser->dict_add_int(d, "packets", atomic64_get_na(&s->packets));
parser->dict_add_int(d, "bytes", atomic64_get_na(&s->bytes));
parser->dict_add_int(d, "errors", atomic64_get_na(&s->errors));
}
if (!totals)
return;
atomic64_add_na(&totals->packets, atomic64_get(&s->packets));
atomic64_add_na(&totals->bytes, atomic64_get(&s->bytes));
atomic64_add_na(&totals->errors, atomic64_get(&s->errors));
}
static void ng_stats_endpoint(const ng_parser_t *parser, parser_arg dict, const endpoint_t *ep) {
if (!ep->address.family)
return;
parser->dict_add_string(dict, "family", ep->address.family->name);
parser->dict_add_str_dup(dict, "address", STR_PTR(sockaddr_print_buf(&ep->address)));
parser->dict_add_int(dict, "port", ep->port);
}
static void ng_stats_stream_ssrc(const ng_parser_t *parser, parser_arg dict,
struct ssrc_ctx *const ssrcs[RTPE_NUM_SSRC_TRACKING],
const char *label)
{
parser_arg list = parser->dict_add_list(dict, label);
for (int i = 0; i < RTPE_NUM_SSRC_TRACKING; i++) {
struct ssrc_ctx *c = ssrcs[i];
if (!c)
break;
parser_arg ssrc = parser->list_add_dict(list);
parser->dict_add_int(ssrc, "SSRC", ssrcs[i]->parent->h.ssrc);
parser->dict_add_int(ssrc, "bytes", atomic64_get_na(&c->stats->bytes));
parser->dict_add_int(ssrc, "packets", atomic64_get_na(&c->stats->packets));
parser->dict_add_int(ssrc, "last RTP timestamp", atomic_get_na(&c->stats->timestamp));
parser->dict_add_int(ssrc, "last RTP seq", atomic_get_na(&c->stats->ext_seq));
}
}
#define BF_PS(k, f) if (PS_ISSET(ps, f)) parser->list_add_string(flags, k)
static void ng_stats_stream(ng_command_ctx_t *ctx, parser_arg list, const struct packet_stream *ps,
struct call_stats *totals)
{
parser_arg dict = {0}, flags;
struct stream_stats *s;
if (!ctx)
goto stats;
const ng_parser_t *parser = ctx->parser_ctx.parser;
dict = parser->list_add_dict(list);
if (ps->selected_sfd) {
parser->dict_add_int(dict, "local port", ps->selected_sfd->socket.local.port);
parser->dict_add_str_dup(dict, "local address",
STR_PTR(sockaddr_print_buf(&ps->selected_sfd->socket.local.address)));
parser->dict_add_string(dict, "family", ps->selected_sfd->socket.local.address.family->name);
}
ng_stats_endpoint(parser, parser->dict_add_dict(dict, "endpoint"), &ps->endpoint);
ng_stats_endpoint(parser, parser->dict_add_dict(dict, "advertised endpoint"),
&ps->advertised_endpoint);
if (ps->crypto.params.crypto_suite)
parser->dict_add_string(dict, "crypto suite",
ps->crypto.params.crypto_suite->name);
parser->dict_add_int(dict, "last packet", packet_stream_last_packet(ps) / 1000000L);
parser->dict_add_int(dict, "last kernel packet", atomic64_get_na(&ps->stats_in->last_packet_us) / 1000000L);
parser->dict_add_int(dict, "last user packet", atomic64_get_na(&ps->last_packet_us) / 1000000L);
flags = parser->dict_add_list(dict, "flags");
BF_PS("RTP", RTP);
BF_PS("RTCP", RTCP);
BF_PS("fallback RTCP", FALLBACK_RTCP);
BF_PS("filled", FILLED);
BF_PS("confirmed", CONFIRMED);
BF_PS("kernelized", KERNELIZED);
BF_PS("no kernel support", NO_KERNEL_SUPPORT);
BF_PS("DTLS fingerprint verified", FINGERPRINT_VERIFIED);
BF_PS("strict source address", STRICT_SOURCE);
BF_PS("media handover", MEDIA_HANDOVER);
BF_PS("ICE", ICE);
ng_stats_stream_ssrc(parser, dict, ps->ssrc_in, "ingress SSRCs");
ng_stats_stream_ssrc(parser, dict, ps->ssrc_out, "egress SSRCs");
stats:
if (totals->last_packet_us < packet_stream_last_packet(ps))
totals->last_packet_us = packet_stream_last_packet(ps);
/* XXX distinguish between input and output */
s = &totals->totals[0];
if (!PS_ISSET(ps, RTP))
s = &totals->totals[1];
ng_stats(ctx, dict, "stats", ps->stats_in, s);
ng_stats(ctx, dict, "stats_out", ps->stats_out, NULL);
}
#define BF_M(k, f) if (MEDIA_ISSET(m, f)) parser->list_add_string(flags, k)
static void ng_stats_media(ng_command_ctx_t *ctx, parser_arg list, const struct call_media *m,
struct call_stats *totals, parser_arg ssrc)
{
parser_arg dict, streams = {0}, flags;
struct packet_stream *ps;
const rtp_payload_type *rtp_pt = NULL;
if (!ctx)
goto stats;
const ng_parser_t *parser = ctx->parser_ctx.parser;
rtp_pt = __rtp_stats_codec((struct call_media *)m);
dict = parser->list_add_dict(list);
parser->dict_add_int(dict, "index", m->index);
parser->dict_add_str(dict, "type", &m->type);
if (m->protocol)
parser->dict_add_string(dict, "protocol", m->protocol->name);
if (rtp_pt)
parser->dict_add_str_dup(dict, "codec", &rtp_pt->encoding_with_params);
streams = parser->dict_add_list(dict, "streams");
flags = parser->dict_add_list(dict, "flags");
BF_M("initialized", INITIALIZED);
BF_M("asymmetric", ASYMMETRIC);
BF_M("send", SEND);
BF_M("recv", RECV);
BF_M("rtcp-mux", RTCP_MUX);
BF_M("DTLS-SRTP", DTLS);
BF_M("DTLS role active", SETUP_ACTIVE);
BF_M("DTLS role passive", SETUP_PASSIVE);
BF_M("SDES", SDES);
BF_M("passthrough", PASSTHRU);
BF_M("ICE", ICE);
BF_M("trickle ICE", TRICKLE_ICE);
BF_M("ICE controlling", ICE_CONTROLLING);
BF_M("ICE-lite peer", ICE_LITE_PEER);
BF_M("ICE-lite self", ICE_LITE_SELF);
BF_M("unidirectional", UNIDIRECTIONAL);
BF_M("loop check", LOOP_CHECK);
BF_M("generator/sink", GENERATOR);
BF_M("ptime-override", PTIME_OVERRIDE);
BF_M("RTCP feedback", RTCP_FB);
BF_M("RTCP generator", RTCP_GEN);
BF_M("echo", ECHO);
BF_M("blackhole", BLACKHOLE);
BF_M("SDES reordered", REORDER_FORCED);
BF_M("audio player", AUDIO_PLAYER);
BF_M("legacy OSRTP", LEGACY_OSRTP);
BF_M("reverse legacy OSRTP", LEGACY_OSRTP_REV);
BF_M("transcoding", TRANSCODING);
BF_M("block egress", BLOCK_EGRESS);
ng_stats_ssrc(parser, ssrc, &m->ssrc_hash);
stats:
for (auto_iter(l, m->streams.head); l; l = l->next) {
ps = l->data;
ng_stats_stream(ctx, streams, ps, totals);
}
}
static void ng_stats_monologue(ng_command_ctx_t *ctx, parser_arg dict, const struct call_monologue *ml,
struct call_stats *totals, parser_arg ssrc)
{
parser_arg sub, medias = {0};
struct call_media *m;
g_auto(GQueue) mls_subscriptions = G_QUEUE_INIT; /* to avoid duplications */
g_auto(GQueue) mls_subscribers = G_QUEUE_INIT; /* to avoid duplications */
if (!ml)
return;
if (!ctx)
goto stats;
const ng_parser_t *parser = ctx->parser_ctx.parser;
if (ml->tag.len)
sub = parser->dict_add_dict(dict, ml->tag.s);
else {
char buf[32];
snprintf(buf, sizeof(buf), "<untagged %u>", ml->unique_id);
sub = parser->dict_add_dict_dup(dict, buf);
}
parser->dict_add_str(sub, "tag", &ml->tag);
if (ml->viabranch.s)
parser->dict_add_str(sub, "via-branch", &ml->viabranch);
if (ml->tag_aliases.length) {
parser_arg aliases = parser->dict_add_list(sub, "tag-aliases");
for (auto_iter(alias, ml->tag_aliases.head); alias; alias = alias->next)
parser->list_add_str_dup(aliases, alias->data);
}
if (ml->label.s)
parser->dict_add_str(sub, "label", &ml->label);
parser->dict_add_int(sub, "created", ml->created_us / 1000000L);
if (ml->metadata.s)
parser->dict_add_str(sub, "metadata", &ml->metadata);
parser_arg b_subscriptions = parser->dict_add_list(sub, "subscriptions");
parser_arg b_subscribers = parser->dict_add_list(sub, "subscribers");
for (int i = 0; i < ml->medias->len; i++)
{
struct call_media * media = ml->medias->pdata[i];
if (!media)
continue;
for (__auto_type subscription = media->media_subscriptions.head;
subscription;
subscription = subscription->next)
{
struct media_subscription * ms = subscription->data;
if (!g_queue_find(&mls_subscriptions, ms->monologue)) {
parser_arg sub1 = parser->list_add_dict(b_subscriptions);
parser->dict_add_str(sub1, "tag", &ms->monologue->tag);
parser->dict_add_string(sub1, "type", ms->attrs.offer_answer ? "offer/answer" : "pub/sub");
g_queue_push_tail(&mls_subscriptions, ms->monologue);
}
}
for (__auto_type subscriber = media->media_subscribers.head;
subscriber;
subscriber = subscriber->next)
{
struct media_subscription * ms = subscriber->data;
if (!g_queue_find(&mls_subscribers, ms->monologue)) {
parser_arg sub1 = parser->list_add_dict(b_subscribers);
parser->dict_add_str(sub1, "tag", &ms->monologue->tag);
parser->dict_add_string(sub1, "type", ms->attrs.offer_answer ? "offer/answer" : "pub/sub");
g_queue_push_tail(&mls_subscribers, ms->monologue);
}
}
}
medias = parser->dict_add_list(sub, "medias");
parser_arg list = parser->dict_add_list(sub, "VSC");
for (unsigned int i = 0; i < ml->num_dtmf_triggers; i++) {
const struct dtmf_trigger_state *state = &ml->dtmf_trigger_state[i];
if (state->trigger.len == 0)
continue;
parser_arg vsc = parser->list_add_dict(list);
const char *type = dtmf_trigger_types[state->type];
if (type)
parser->dict_add_string(vsc, "type", type);
parser->dict_add_str(vsc, "trigger", &state->trigger);
parser->dict_add_int(vsc, "active", !state->inactive);
}
if (ml->call->recording) {
parser_arg rec = parser->dict_add_dict(sub, "recording");
parser->dict_add_int(rec, "excluded", !!ML_ISSET(ml, NO_RECORDING));
parser->dict_add_int(rec, "forwarding", !!ML_ISSET(ml, REC_FORWARDING));
}
stats:
for (unsigned int i = 0; i < ml->medias->len; i++) {
m = ml->medias->pdata[i];
if (!m)
continue;
ng_stats_media(ctx, medias, m, totals, ssrc);
}
}
static void ng_stats_ssrc_mos_entry_common(const ng_parser_t *parser, parser_arg subent,
struct ssrc_stats_block *sb,
unsigned int div)
{
parser->dict_add_int(subent, "MOS", sb->mos / div);
parser->dict_add_int(subent, "round-trip time", sb->rtt / div);
parser->dict_add_int(subent, "round-trip time leg", sb->rtt_leg / div);
parser->dict_add_int(subent, "jitter", sb->jitter / div);
parser->dict_add_int(subent, "packet loss", sb->packetloss / div);
}
static void ng_stats_ssrc_mos_entry(const ng_parser_t *parser, parser_arg subent,
struct ssrc_stats_block *sb)
{
ng_stats_ssrc_mos_entry_common(parser, subent, sb, 1);
parser->dict_add_int(subent, "reported at", sb->reported / 1000000L);
}
static void ng_stats_ssrc_mos_entry_dict(const ng_parser_t *parser, parser_arg ent, const char *label,
struct ssrc_stats_block *sb)
{
parser_arg subent = parser->dict_add_dict(ent, label);
ng_stats_ssrc_mos_entry(parser, subent, sb);
}
static void ng_stats_ssrc_mos_entry_dict_avg(const ng_parser_t *parser, parser_arg ent, const char *label,
struct ssrc_stats_block *sb,
unsigned int div)
{
parser_arg subent = parser->dict_add_dict(ent, label);
ng_stats_ssrc_mos_entry_common(parser, subent, sb, div);
parser->dict_add_int(subent, "samples", div);
}
static void ng_stats_ssrc(const ng_parser_t *parser, parser_arg dict, const struct ssrc_hash *ht) {
for (GList *l = ht->nq.head; l; l = l->next) {
struct ssrc_entry_call *se = l->data;
char tmp[12];
snprintf(tmp, sizeof(tmp), "%" PRIu32, se->h.ssrc);
if (parser->dict_contains(dict, tmp))
continue;
if (!se->stats_blocks.length || !se->lowest_mos || !se->highest_mos)
continue;
parser_arg ent = parser->dict_add_dict_dup(dict, tmp);
parser->dict_add_int(ent, "cumulative loss", se->packets_lost);
int mos_samples = se->stats_blocks.length - se->no_mos_count;
if (mos_samples < 1) mos_samples = 1;
ng_stats_ssrc_mos_entry_dict_avg(parser, ent, "average MOS", &se->average_mos, mos_samples);
ng_stats_ssrc_mos_entry_dict(parser, ent, "lowest MOS", se->lowest_mos);
ng_stats_ssrc_mos_entry_dict(parser, ent, "highest MOS", se->highest_mos);
parser_arg progdict = parser->dict_add_dict(ent, "MOS progression");
// aim for about 10 entries to the list
GList *listent = se->stats_blocks.head;
struct ssrc_stats_block *sb = listent->data;
int64_t interval
= ((struct ssrc_stats_block *) se->stats_blocks.tail->data)->reported
- sb->reported;
interval /= 10;
parser->dict_add_int(progdict, "interval", interval / 1000000L);
int64_t next_step = sb->reported;
parser_arg entlist = parser->dict_add_list(progdict, "entries");
for (; listent; listent = listent->next) {
sb = listent->data;
if (sb->reported < next_step)
continue;
next_step += interval;
parser_arg cent = parser->list_add_dict(entlist);
ng_stats_ssrc_mos_entry(parser, cent, sb);
}
}
}
/* call must be locked */
void ng_call_stats(ng_command_ctx_t *ctx, call_t *call, const str *fromtag, const str *totag,
struct call_stats *totals)
{
parser_arg tags = {0}, dict;
const str *match_tag;
struct call_monologue *ml;
struct call_stats t_b;
parser_arg ssrc = {0};
const ng_parser_t *parser = NULL;
if (!totals)
totals = &t_b;
ZERO(*totals);
if (!ctx)
goto stats;
call_ngb_hold_ref(call, ctx->ngbuf);
parser = ctx->parser_ctx.parser;
parser->dict_add_int(ctx->resp, "created", call->created / 1000000L);
parser->dict_add_int(ctx->resp, "created_us", call->created % 1000000L);
parser->dict_add_int(ctx->resp, "created_ts", call->created);
parser->dict_add_int(ctx->resp, "last signal", call->last_signal_us / 1000000L);
parser->dict_add_int(ctx->resp, "last redis update", atomic64_get_na(&call->last_redis_update_us) / 1000000L);
if (call->metadata.s)
parser->dict_add_str(ctx->resp, "metadata", &call->metadata);
ssrc = parser->dict_add_dict(ctx->resp, "SSRC");
tags = parser->dict_add_dict(ctx->resp, "tags");
stats:
match_tag = (totag && totag->s && totag->len) ? totag : fromtag;
if (!match_tag || !match_tag->len) {
for (__auto_type l = call->monologues.head; l; l = l->next) {
ml = l->data;
ng_stats_monologue(ctx, tags, ml, totals, ssrc);
}
}
else {
ml = call_get_monologue(call, match_tag);
if (ml) {
ng_stats_monologue(ctx, tags, ml, totals, ssrc);
g_auto(GQueue) mls = G_QUEUE_INIT; /* to avoid duplications */
for (int i = 0; i < ml->medias->len; i++)
{
struct call_media * media = ml->medias->pdata[i];
if (!media)
continue;
for (__auto_type subscription = media->media_subscriptions.head;
subscription;
subscription = subscription->next)
{
struct media_subscription * ms = subscription->data;
if (!g_queue_find(&mls, ms->monologue)) {
ng_stats_monologue(ctx, tags, ms->monologue, totals, ssrc);
g_queue_push_tail(&mls, ms->monologue);
}
}
}
}
}
if (!ctx)
return;
dict = parser->dict_add_dict(ctx->resp, "totals");
ng_stats(ctx, dict, "RTP", &totals->totals[0], NULL);
ng_stats(ctx, dict, "RTCP", &totals->totals[1], NULL);
if (call->recording) {
parser_arg rec = parser->dict_add_dict(ctx->resp, "recording");
parser->dict_add_int(rec, "call recording", !!CALL_ISSET(call, RECORDING_ON));
parser->dict_add_int(rec, "forwarding", !!CALL_ISSET(call, REC_FORWARDING));
}
}
static void ng_list_calls(ng_command_ctx_t *ctx, parser_arg output, long long int limit) {
rtpe_calls_ht_iter iter;
const ng_parser_t *parser = ctx->parser_ctx.parser;
rwlock_lock_r(&rtpe_callhash_lock);
t_hash_table_iter_init (&iter, rtpe_callhash);
str *key;
while (limit-- && t_hash_table_iter_next (&iter, &key, NULL)) {
parser->list_add_str_dup(output, key);
}
rwlock_unlock_r(&rtpe_callhash_lock);
}
const char *call_query_ng(ng_command_ctx_t *ctx) {
str callid, fromtag, totag;
call_t *call;
parser_arg input = ctx->req;
const ng_parser_t *parser = ctx->parser_ctx.parser;
if (!parser->dict_get_str(input, "call-id", &callid))
return "No call-id in message";
call = call_get(&callid);
if (!call)
return "Unknown call-id";
parser->dict_get_str(input, "from-tag", &fromtag);
parser->dict_get_str(input, "to-tag", &totag);
ng_call_stats(ctx, call, &fromtag, &totag, NULL);
rwlock_unlock_w(&call->master_lock);
obj_put(call);
return NULL;
}
const char *call_list_ng(ng_command_ctx_t *ctx) {
parser_arg calls;
long long int limit;
parser_arg input = ctx->req;
parser_arg output = ctx->resp;
const ng_parser_t *parser = ctx->parser_ctx.parser;
limit = parser->dict_get_int_str(input, "limit", 32);
if (limit < 0) {
return "invalid limit, must be >= 0";
}
calls = parser->dict_add_list(output, "calls");
ng_list_calls(ctx, calls, limit);
return NULL;
}
static const char *call_recording_common_ng(ng_command_ctx_t *ctx,
void (*fn)(ng_command_ctx_t *, call_t *call))
{
g_auto(sdp_ng_flags) flags;
g_autoptr(call_t) call = NULL;
parser_arg input = ctx->req;
const ng_parser_t *parser = ctx->parser_ctx.parser;
call_ng_process_flags(&flags, ctx);
if (!parser->dict_get_str(input, "call-id", &flags.call_id))
return "No call-id in message";
call = call_get(&flags.call_id);
if (!call)
return "Unknown call-id";
struct call_monologue *ml = NULL;
if (parser->dict_get_str(input, "from-tag", &flags.from_tag)) {
if (flags.from_tag.s) {
ml = call_get_monologue(call, &flags.from_tag);
if (!ml)
ilog(LOG_WARN, "Given from-tag " STR_FORMAT_M " not found",
STR_FMT_M(&flags.from_tag));
}
}
if (ml)
update_metadata_monologue(ml, &flags);
else
update_metadata_call(call, &flags);
fn(ctx, call);
return NULL;
}
static void start_recording_fn(ng_command_ctx_t *ctx, call_t *call) {
recording_start(call);
}
const char *call_start_recording_ng(ng_command_ctx_t *ctx) {
return call_recording_common_ng(ctx, start_recording_fn);
}
static void pause_recording_fn(ng_command_ctx_t *ctx, call_t *call) {
recording_pause(call);
}
const char *call_pause_recording_ng(ng_command_ctx_t *ctx) {
return call_recording_common_ng(ctx, pause_recording_fn);
}
static void stop_recording_iter(str *key, unsigned int idx, helper_arg arg) {
if (str_cmp(key, "pause") == 0)
*arg.call_fn = recording_pause;
else if (str_cmp(key, "discard-recording") == 0)
*arg.call_fn = recording_discard;
}
static void stop_recording_fn(ng_command_ctx_t *ctx, call_t *call) {
// support alternative usage for "pause" call: either `pause=yes` ...
parser_arg input = ctx->req;
const ng_parser_t *parser = ctx->parser_ctx.parser;
str pause;
if (parser->dict_get_str(input, "pause", &pause)) {
if (!str_cmp(&pause, "yes") || !str_cmp(&pause, "on") || !str_cmp(&pause, "true")) {
pause_recording_fn(ctx, call);
return;
}
}
// ... or `flags=[pause]`
parser_arg item = parser->dict_get_expect(input, "flags", BENCODE_LIST);
void (*fn)(call_t *) = recording_stop;
if (item.gen)
parser->list_iter(parser, item, stop_recording_iter, NULL, &fn);
fn(call);
}
const char *call_stop_recording_ng(ng_command_ctx_t *ctx) {
return call_recording_common_ng(ctx, stop_recording_fn);
}
static const char *media_block_match1(call_t *call, struct call_monologue **monologue,
sdp_ng_flags *flags)
{
if (flags->label.s) {
*monologue = t_hash_table_lookup(call->labels, &flags->label);
if (!*monologue)
return "No monologue matching the given label";
}
else if (flags->address.s) {
sockaddr_t addr;
if (!sockaddr_parse_any_str(&addr, &flags->address))
return "Failed to parse network address";
// walk our structures to find a matching stream
for (__auto_type l = call->monologues.head; l; l = l->next) {
*monologue = l->data;
for (unsigned int k = 0; k < (*monologue)->medias->len; k++) {
struct call_media *media = (*monologue)->medias->pdata[k];
if (!media)
continue;
if (!media->streams.head)
continue;
struct packet_stream *ps = media->streams.head->data;
if (!sockaddr_eq(&addr, &ps->advertised_endpoint.address))
continue;
ilog(LOG_DEBUG, "Matched address %s%s%s to tag '" STR_FORMAT_M "'",
FMT_M(sockaddr_print_buf(&addr)), STR_FMT_M(&(*monologue)->tag));
goto found;
}
}
return "Failed to match address to any tag";
found:
;
}
/* ignore from-tag, if directional is not set */
else if (flags->from_tag.s &&
(!IS_OP_DIRECTIONAL(flags->opmode) ||
(IS_OP_DIRECTIONAL(flags->opmode) && flags->directional))) {
*monologue = call_get_monologue(call, &flags->from_tag);
if (!*monologue)
return "From-tag given, but no such tag exists";
}
if (*monologue)
__monologue_unconfirm(*monologue, "media blocking signalling event");
return NULL;
}
static const char *media_block_match(call_t **call, struct call_monologue **monologue,
sdp_ng_flags *flags, ng_command_ctx_t *ctx)
{
*call = NULL;
*monologue = NULL;
call_ng_process_flags(flags, ctx);
if (!flags->call_id.s)
return "No call-id in message";
*call = call_get(&flags->call_id);
if (!*call)
return "Unknown call-ID";
// directional?
if (flags->all == ALL_ALL) // explicitly non-directional, so skip the rest
return NULL;
const char *err = media_block_match1(*call, monologue, flags);
if (err)
return err;
// for generic ops, handle set-label here if given
if (IS_OP_OTHER(flags->opmode) && flags->set_label.len && *monologue) {
(*monologue)->label = call_str_cpy(&flags->set_label);
t_hash_table_replace((*call)->labels, &(*monologue)->label, *monologue);
}
return NULL;
}
void add_media_to_sub_list(subscription_q *q, struct call_media *media, struct call_monologue *ml) {
struct media_subscription *ms = g_new0(__typeof(*ms), 1);
ms->media = media;
ms->monologue = ml;
t_queue_push_tail(q, ms);
}
static const char *media_block_match_mult(call_t **call, subscription_q *medias,
sdp_ng_flags *flags, ng_command_ctx_t *ctx)
{
call_ng_process_flags(flags, ctx);
if (!flags->call_id.s)
return "No call-id in message";
*call = call_get(&flags->call_id);
if (!*call)
return "Unknown call-ID";
if (flags->all == ALL_ALL) {
for (__auto_type l = (*call)->medias.head; l; l = l->next) {
struct call_media *media = l->data;
if (!media || (media->monologue->tagtype != FROM_TAG &&
media->monologue->tagtype != TO_TAG))
{
continue;
}
add_media_to_sub_list(medias, media, media->monologue);
}
return NULL;
}
/* is a single ml given? */
struct call_monologue *ml = NULL;
const char *err = media_block_match1(*call, &ml, flags);
if (err)
return err;
if (ml) {
for (int i = 0; i < ml->medias->len; i++)
{
struct call_media * media = ml->medias->pdata[i];
if (!media)
continue;
add_media_to_sub_list(medias, media, ml);
}
return NULL;
}
/* handle from-tag list */
for (__auto_type l = flags->from_tags.head; l; l = l->next) {
str *s = l->data;
struct call_monologue *mlf = call_get_monologue(*call, s);
if (!mlf) {
ilog(LOG_WARN, "Given from-tag " STR_FORMAT_M " not found", STR_FMT_M(s));
} else {
for (int i = 0; i < mlf->medias->len; i++)
{
struct call_media * media = mlf->medias->pdata[i];
if (!media)
continue;
add_media_to_sub_list(medias, media, mlf);
}
}
}
if (!medias->length)
return "No medias found (no monologues matched)";
return NULL;
}
// XXX these are all identical - unify and use a flags int and/or callback
const char *call_start_forwarding_ng(ng_command_ctx_t *ctx) {
g_autoptr(call_t) call = NULL;
struct call_monologue *monologue;
const char *errstr = NULL;
g_auto(sdp_ng_flags) flags;
errstr = media_block_match(&call, &monologue, &flags, ctx);
if (errstr)
return errstr;
if (monologue) {
ilog(LOG_INFO, "Start forwarding for single party (tag '" STR_FORMAT_M "')",
STR_FMT_M(&monologue->tag));
ML_SET(monologue, REC_FORWARDING);
}
else {
ilog(LOG_INFO, "Start forwarding (entire call)");
CALL_SET(call, REC_FORWARDING);
}
if (monologue)
update_metadata_monologue(monologue, &flags);
else
update_metadata_call(call, &flags);
recording_start_daemon(call);
return NULL;
}
const char *call_stop_forwarding_ng(ng_command_ctx_t *ctx) {
g_autoptr(call_t) call = NULL;
struct call_monologue *monologue;
const char *errstr = NULL;
g_auto(sdp_ng_flags) flags;
errstr = media_block_match(&call, &monologue, &flags, ctx);
if (errstr)
return errstr;
if (monologue) {
ilog(LOG_INFO, "Stop forwarding for single party (tag '" STR_FORMAT_M "')",
STR_FMT_M(&monologue->tag));
ML_CLEAR(monologue, REC_FORWARDING);
}
else {
ilog(LOG_INFO, "Stop forwarding (entire call)");
CALL_CLEAR(call, REC_FORWARDING);
if (flags.all == ALL_ALL) {
for (__auto_type l = call->monologues.head; l; l = l->next) {
monologue = l->data;
ML_CLEAR(monologue, REC_FORWARDING);
}
}
}
if (monologue)
update_metadata_monologue(monologue, &flags);
else
update_metadata_call(call, &flags);
recording_stop_daemon(call);
return NULL;
}
static void call_monologue_set_block_mode(struct call_monologue *ml, sdp_ng_flags *flags) {
if (flags->delay_buffer >= 0) {
for (unsigned int i = 0; i < ml->medias->len; i++) {
struct call_media *media = ml->medias->pdata[i];
if (!media)
continue;
media->buffer_delay = flags->delay_buffer;
}
}
bf_set_clear(&ml->ml_flags, ML_FLAG_DETECT_DTMF, flags->detect_dtmf);
if (flags->volume >= 0 && flags->volume <= 63)
ml->tone_vol = flags->volume;
else if (flags->volume < 0 && flags->volume >= -63)
ml->tone_vol = -1 * flags->volume;
if (flags->frequencies && flags->frequencies->len > 0) {
if (ml->tone_freqs)
g_array_free(ml->tone_freqs, true);
ml->tone_freqs = flags->frequencies;
flags->frequencies = NULL;
}
if (flags->block_dtmf_mode == BLOCK_DTMF_ZERO)
ml->dtmf_digit = '0';
else {
char digit = dtmf_code_to_char(flags->digit);
if (digit)
ml->dtmf_digit = digit;
else if (dtmf_code_from_char(flags->digit) != -1)
ml->dtmf_digit = flags->digit;
}
dtmf_trigger_set(ml, DTMF_TRIGGER_BLOCK, &flags->trigger, false);
dtmf_trigger_set(ml, DTMF_TRIGGER_UNBLOCK, &flags->trigger_end, false);
ml->block_dtmf_trigger = flags->block_dtmf_mode_trigger;
ml->dtmf_trigger_digits = flags->trigger_end_digits;
ml->block_dtmf_trigger_end_ms = flags->trigger_end_ms;
ml->dtmf_delay = flags->dtmf_delay;
codec_update_all_handlers(ml);
}
static void call_set_dtmf_block(call_t *call, struct call_monologue *monologue, sdp_ng_flags *flags) {
enum block_dtmf_mode mode = BLOCK_DTMF_DROP;
// special case default: if there's a trigger, default block mode is none
if (flags->block_dtmf_mode_trigger || flags->trigger.len)
mode = BLOCK_DTMF_OFF;
if (flags->block_dtmf_mode)
mode = flags->block_dtmf_mode;
if (monologue) {
ilog(LOG_INFO, "Blocking directional DTMF (tag '" STR_FORMAT_M "')",
STR_FMT_M(&monologue->tag));
monologue->block_dtmf = mode;
}
else {
ilog(LOG_INFO, "Blocking DTMF (entire call)");
call->block_dtmf = mode;
}
if (is_dtmf_replace_mode(mode) || flags->delay_buffer >= 0 || flags->trigger.len) {
if (monologue)
call_monologue_set_block_mode(monologue, flags);
else {
for (__auto_type l = call->monologues.head; l; l = l->next) {
struct call_monologue *ml = l->data;
call_monologue_set_block_mode(ml, flags);
}
}
}
}
const char *call_block_dtmf_ng(ng_command_ctx_t *ctx) {
g_autoptr(call_t) call = NULL;
struct call_monologue *monologue;
const char *errstr = NULL;
g_auto(sdp_ng_flags) flags;
errstr = media_block_match(&call, &monologue, &flags, ctx);
if (errstr)
return errstr;
call_set_dtmf_block(call, monologue, &flags);
return NULL;
}
const char *call_unblock_dtmf_ng(ng_command_ctx_t *ctx) {
g_autoptr(call_t) call = NULL;
struct call_monologue *monologue;
const char *errstr = NULL;
g_auto(sdp_ng_flags) flags;
errstr = media_block_match(&call, &monologue, &flags, ctx);
if (errstr)
return errstr;
if (monologue) {
ilog(LOG_INFO, "Unblocking directional DTMF (tag '" STR_FORMAT_M "')",
STR_FMT_M(&monologue->tag));
enum block_dtmf_mode prev_mode = monologue->block_dtmf;
monologue->block_dtmf = BLOCK_DTMF_OFF;
if (is_dtmf_replace_mode(prev_mode) || flags.delay_buffer >= 0) {
if (flags.delay_buffer >= 0) {
for (unsigned int i = 0; i < monologue->medias->len; i++) {
struct call_media *media = monologue->medias->pdata[i];
if (!media)
continue;
media->buffer_delay = flags.delay_buffer;
}
}
bf_set_clear(&monologue->ml_flags, ML_FLAG_DETECT_DTMF, flags.detect_dtmf);
codec_update_all_handlers(monologue);
}
}
else {
ilog(LOG_INFO, "Unblocking DTMF (entire call)");
enum block_dtmf_mode prev_mode = call->block_dtmf;
call->block_dtmf = BLOCK_DTMF_OFF;
if (flags.all == ALL_ALL || is_dtmf_replace_mode(prev_mode) || flags.delay_buffer >= 0) {
for (__auto_type l = call->monologues.head; l; l = l->next) {
monologue = l->data;
enum block_dtmf_mode prev_ml_mode = BLOCK_DTMF_OFF;
if (flags.all == ALL_ALL) {
prev_ml_mode = monologue->block_dtmf;
monologue->block_dtmf = BLOCK_DTMF_OFF;
}
if (flags.delay_buffer >= 0) {
for (unsigned int i = 0; i < monologue->medias->len; i++) {
struct call_media *media = monologue->medias->pdata[i];
if (!media)
continue;
media->buffer_delay = flags.delay_buffer;
}
}
bf_set_clear(&monologue->ml_flags, ML_FLAG_DETECT_DTMF, flags.detect_dtmf);
if (is_dtmf_replace_mode(prev_ml_mode) || is_dtmf_replace_mode(prev_mode)
|| flags.delay_buffer >= 0)
codec_update_all_handlers(monologue);
}
}
}
return NULL;
}
static const char *call_block_silence_media(ng_command_ctx_t *ctx, bool on_off, const char *ucase_verb,
const char *lcase_verb,
unsigned int call_flag, unsigned int ml_flag, size_t attr_offset)
{
g_autoptr(call_t) call = NULL;
struct call_monologue *monologue;
const char *errstr = NULL;
g_auto(sdp_ng_flags) flags;
bool found_subscriptions = false;
errstr = media_block_match(&call, &monologue, &flags, ctx);
if (errstr)
return errstr;
/* from-monologue is given */
if (monologue) {
/* potential sinks (medias) towards from-monologue,
* not particularly subscribed */
bool sinks = false;
/* to-monologue is given */
if (flags.to_tag.len || flags.to_label.len) {
struct call_monologue *sink_ml = NULL;
/* to-monologue is given, check using to-tag */
if (flags.to_tag.len) {
sink_ml = t_hash_table_lookup(call->tags, &flags.to_tag);
if (!sink_ml) {
ilog(LOG_WARN, "Media flow '" STR_FORMAT_M "' -> '" STR_FORMAT_M "' doesn't "
"exist for media %s (to-tag not found)",
STR_FMT_M(&monologue->tag), STR_FMT_M(&flags.to_tag),
lcase_verb);
return "Media flow not found (to-tag not found)";
}
/* to-monologue is given, check using to-label */
} else {
sink_ml = t_hash_table_lookup(call->labels, &flags.to_label);
if (!sink_ml) {
ilog(LOG_WARN, "Media flow '" STR_FORMAT_M "' -> label '" STR_FORMAT "' doesn't "
"exist for media %s (to-label not found)",
STR_FMT_M(&monologue->tag), STR_FMT(&flags.to_label),
lcase_verb);
return "Media flow not found (to-label not found)";
}
}
/* now check if any sink ml media is susbcribed to any of monologue medias */
for (int i = 0; i < sink_ml->medias->len; i++)
{
struct call_media * sink_md = monologue->medias->pdata[i];
if (!sink_md)
continue;
for (int j = 0; j < monologue->medias->len; j++)
{
struct call_media * ml_media = monologue->medias->pdata[j];
if (!ml_media)
continue;
subscription_list * ll = t_hash_table_lookup(ml_media->media_subscriptions_ht, sink_md);
if (ll) {
found_subscriptions = true;
G_STRUCT_MEMBER(bool, &ll->data->attrs, attr_offset) = on_off;
ilog(LOG_INFO, "%s directional media flow: "
"monologue tag '" STR_FORMAT_M "' -> '" STR_FORMAT_M "' / "
"media index '%d' -> '%d'",
ucase_verb,
STR_FMT_M(&monologue->tag), STR_FMT_M(&ll->data->monologue->tag),
ml_media->index, ll->data->media->index);
}
}
sinks = true;
}
/* one of the "all" flags is given, to-subscriptions */
} else if (flags.all == ALL_OFFER_ANSWER || flags.all == ALL_NON_OFFER_ANSWER
|| flags.all == ALL_FLOWS)
{
for (int i = 0; i < monologue->medias->len; i++)
{
struct call_media * ml_media = monologue->medias->pdata[i];
if (!ml_media)
continue;
for (__auto_type sub = ml_media->media_subscribers.head; sub; sub = sub->next)
{
struct media_subscription * ms = sub->data;
struct call_media * sub_md = ms->media;
if (!sub_md ||
(flags.all == ALL_OFFER_ANSWER && !ms->attrs.offer_answer) ||
(flags.all == ALL_NON_OFFER_ANSWER && ms->attrs.offer_answer))
{
continue;
}
ilog(LOG_INFO, "%s directional media flow: "
"monologue tag '" STR_FORMAT_M "' -> '" STR_FORMAT_M "' / "
"media index '%d' -> '%d'",
ucase_verb,
STR_FMT_M(&monologue->tag), STR_FMT_M(&sub_md->monologue->tag),
ml_media->index, sub_md->index);
found_subscriptions = true;
G_STRUCT_MEMBER(bool, &ms->attrs, attr_offset) = on_off;
sinks = true;
}
}
/* having an empty sinks list is an error, as "all" would be nothing */
if (!sinks) {
ilog(LOG_WARN, "No eligible media subscriptions found for '" STR_FORMAT_M "' "
"for media %s",
STR_FMT_M(&monologue->tag),
lcase_verb);
return "No eligible media subscriptions found";
}
}
/* media sinks */
if (sinks) {
if (!found_subscriptions) {
/* no one of sink medias is subscribed to monologue medias */
ilog(LOG_WARN, "Media flow '" STR_FORMAT_M "' -> '" STR_FORMAT_M "' doesn't "
"exist for media %s (to-tag not subscribed)",
STR_FMT_M(&monologue->tag),
STR_FMT_M(&flags.to_tag),
lcase_verb);
return "Media flow not found (to-tag not subscribed)";
}
update_init_monologue_subscribers(monologue, OP_BLOCK_SILENCE_MEDIA);
} else {
/* it seems no to-monologue is given and no "all" flag is given as well.
* In this case the from-monologue itself is flagged,
* and not any of the media flows (subscription objects) */
ilog(LOG_INFO, "%s directional media (tag '" STR_FORMAT_M "')",
ucase_verb,
STR_FMT_M(&monologue->tag));
bf_set_clear(&monologue->ml_flags, ml_flag, on_off);
}
__monologue_unconfirm(monologue, "media silencing signalling event");
} else {
bf_set_clear(&call->call_flags, call_flag, on_off);
if (!on_off) {
ilog(LOG_INFO, "%s media (entire call and participants)", ucase_verb);
if (flags.all == ALL_ALL) {
for (__auto_type l = call->monologues.head; l; l = l->next) {
monologue = l->data;
bf_set_clear(&monologue->ml_flags, ml_flag, on_off);
}
}
} else {
ilog(LOG_INFO, "%s media (entire call)", ucase_verb);
}
__call_unkernelize(call, "media silencing signalling event");
}
return NULL;
}
#define CALL_BLOCK_SILENCE_MEDIA(ctx, on_off, ucase_verb, lcase_verb, member_name, flag) \
call_block_silence_media(ctx, on_off, ucase_verb, lcase_verb, \
CALL_FLAG_ ## flag, \
ML_FLAG_ ## flag, \
G_STRUCT_OFFSET(struct sink_attrs, member_name))
const char *call_block_media_ng(ng_command_ctx_t *ctx) {
return CALL_BLOCK_SILENCE_MEDIA(ctx, true, "Blocking", "blocking", block_media, BLOCK_MEDIA);
}
const char *call_unblock_media_ng(ng_command_ctx_t *ctx) {
return CALL_BLOCK_SILENCE_MEDIA(ctx, false, "Unblocking", "unblocking", block_media, BLOCK_MEDIA);
}
const char *call_silence_media_ng(ng_command_ctx_t *ctx) {
return CALL_BLOCK_SILENCE_MEDIA(ctx, true, "Silencing", "silencing", silence_media, SILENCE_MEDIA);
}
const char *call_unsilence_media_ng(ng_command_ctx_t *ctx) {
return CALL_BLOCK_SILENCE_MEDIA(ctx, false, "Unsilencing", "unsilencing", silence_media, SILENCE_MEDIA);
}
#ifdef WITH_TRANSCODING
static const char *play_media_select_party(call_t **call, monologues_q *monologues,
ng_command_ctx_t *ctx, sdp_ng_flags *flags)
{
struct call_monologue *monologue;
t_queue_init(monologues);
const char *err = media_block_match(call, &monologue, flags, ctx);
if (err)
return err;
if (flags->all == ALL_ALL)
t_queue_append(monologues, &(*call)->monologues);
else if (!monologue)
return "No participant party specified";
else
t_queue_push_tail(monologues, monologue);
return NULL;
}
#endif
const char *call_play_media_ng(ng_command_ctx_t *ctx) {
#ifdef WITH_TRANSCODING
g_autoptr(call_t) call = NULL;
g_auto(monologues_q) monologues;
const char *err = NULL;
g_auto(sdp_ng_flags) flags;
const ng_parser_t *parser = ctx->parser_ctx.parser;
err = play_media_select_party(&call, &monologues, ctx, &flags);
if (err)
return err;
for (__auto_type l = monologues.head; l; l = l->next) {
struct call_monologue *monologue = l->data;
media_player_opts_t opts = MPO(
.repeat = flags.repeat_times,
.duration_spent = flags.repeat_duration,
.start_pos = flags.start_pos,
.block_egress = !!flags.block_egress,
.codec_set = flags.codec_set,
.file = flags.file,
.blob = flags.blob,
.db_id = flags.db_id,
);
err = call_play_media_for_ml(monologue, opts, &flags);
if (err)
return err;
if (l == monologues.head && monologue->player->coder.duration)
parser->dict_add_int(ctx->resp, "duration", monologue->player->coder.duration);
}
return NULL;
#else
return "unsupported";
#endif
}
const char *call_stop_media_ng(ng_command_ctx_t *ctx) {
#ifdef WITH_TRANSCODING
g_autoptr(call_t) call = NULL;
g_auto(monologues_q) monologues;
const char *err = NULL;
long long last_frame_pos = 0;
g_auto(sdp_ng_flags) flags;
const ng_parser_t *parser = ctx->parser_ctx.parser;
err = play_media_select_party(&call, &monologues, ctx, &flags);
if (err)
return err;
for (__auto_type l = monologues.head; l; l = l->next) {
struct call_monologue *monologue = l->data;
if (!monologue->player)
return "Not currently playing media";
last_frame_pos = call_stop_media_for_ml(monologue);
}
parser->dict_add_int(ctx->resp, "last-frame-pos", last_frame_pos);
return NULL;
#else
return "unsupported";
#endif
}
const char *call_play_dtmf_ng(ng_command_ctx_t *ctx) {
#ifdef WITH_TRANSCODING
g_autoptr(call_t) call = NULL;
g_auto(monologues_q) monologues;
const char *err = NULL;
g_auto(sdp_ng_flags) flags;
err = play_media_select_party(&call, &monologues, ctx, &flags);
if (err)
return err;
// validate input parameters
if (!flags.duration)
flags.duration = 250;
if (flags.duration < 100) {
flags.duration = 100;
ilog(LOG_WARN, "Invalid duration (%lli ms) specified, using 100 ms instead", flags.duration);
}
else if (flags.duration > 5000) {
flags.duration = 5000;
ilog(LOG_WARN, "Invalid duration (%lli ms) specified, using 5000 ms instead", flags.duration);
}
if (!flags.pause)
flags.pause = 100;
if (flags.pause < 100) {
flags.pause = 100;
ilog(LOG_WARN, "Invalid pause (%lli ms) specified, using 100 ms instead", flags.pause);
}
else if (flags.pause > 5000) {
flags.pause = 5000;
ilog(LOG_WARN, "Invalid pause (%lli ms) specified, using 5000 ms instead", flags.pause);
}
int code;
if (dtmf_code_to_char(flags.digit))
code = flags.digit; // already a code
else
code = dtmf_code_from_char(flags.digit); // convert digit to code
if (code < 0)
return "Out of range 'code' specified";
else if (code > 15)
return "Out of range 'code' specified";
if (flags.volume > 0)
flags.volume *= -1;
for (__auto_type l = monologues.head; l; l = l->next) {
struct call_monologue *monologue = l->data;
// find a usable output media
struct call_media *media;
for (unsigned int i = 0; i < monologue->medias->len; i++) {
media = monologue->medias->pdata[i];
if (!media)
continue;
if (media->type_id != MT_AUDIO)
continue;
goto found;
}
return "Monologue has no media capable of DTMF injection";
// XXX fall back to generating a secondary stream
found:
ML_SET(monologue, DTMF_INJECTION_ACTIVE);
dialogue_unconfirm(monologue, "DTMF playback");
for (unsigned int i = 0; i < monologue->medias->len; i++)
{
struct call_media *ml_media = monologue->medias->pdata[i];
if (!ml_media)
continue;
struct call_media * ms_media_sink = NULL;
for (__auto_type ll = ml_media->media_subscribers.head; ll; ll = ll->next)
{
struct media_subscription * ms = ll->data;
ms_media_sink = ms->media;
if (!ms_media_sink || ms_media_sink->type_id != MT_AUDIO)
continue;
goto found_sink;
}
return "There is no sink media capable of DTMF playback";
found_sink:
err = dtmf_inject(media, code, flags.volume, flags.duration, flags.pause, ms_media_sink);
if (err)
return err;
}
}
return NULL;
#else
return "unsupported";
#endif
}
const char *call_publish_ng(ng_command_ctx_t *ctx,
const char *addr,
const endpoint_t *sin)
{
g_auto(sdp_ng_flags) flags;
g_auto(sdp_sessions_q) parsed = TYPED_GQUEUE_INIT;
g_auto(sdp_streams_q) streams = TYPED_GQUEUE_INIT;
str sdp_in = STR_NULL;
g_auto(str) sdp_out = STR_NULL;
g_autoptr(call_t) call = NULL;
int ret;
const ng_parser_t *parser = ctx->parser_ctx.parser;
call_ng_process_flags(&flags, ctx);
if ((ret = call_ng_basic_checks(&flags)) > 0)
return _ng_basic_errors[ret];
call = call_get_or_create(&flags.call_id, false);
sdp_in = call_str_cpy(&flags.sdp);
if (sdp_parse(&sdp_in, &parsed, &flags))
return "Failed to parse SDP";
if (sdp_streams(&parsed, &streams, &flags))
return "Incomplete SDP specification";
if (trickle_ice_update(ctx->ngbuf, call, &flags, &streams))
return NULL;
updated_created_from(call, addr, sin);
struct call_monologue *ml = call_get_or_create_monologue(call, &flags.from_tag);
ret = monologue_publish(ml, &streams, &flags);
if (ret)
ilog(LOG_ERR, "Publish error"); // XXX close call? handle errors?
ret = sdp_create(&sdp_out, ml, &flags);
if (!ret) {
save_last_sdp(ml, &sdp_in, &parsed, &streams);
ctx->ngbuf->sdp_out = sdp_out.s;
parser->dict_add_str(ctx->resp, "sdp", &sdp_out);
sdp_out = STR_NULL; // ownership passed to output
}
if (ret)
return "Failed to create SDP";
dequeue_sdp_fragments(ml);
call_unlock_release_update(&call);
return NULL;
}
const char *call_subscribe_request_ng(ng_command_ctx_t *ctx) {
const char *err = NULL;
g_auto(sdp_ng_flags) flags;
char rand_buf[65];
g_autoptr(call_t) call = NULL;
g_auto(subscription_q) srms = TYPED_GQUEUE_INIT;
g_auto(str) sdp_out = STR_NULL;
parser_arg output = ctx->resp;
const ng_parser_t *parser = ctx->parser_ctx.parser;
/* get source monologue */
err = media_block_match_mult(&call, &srms, &flags, ctx);
if (err)
return err;
if (flags.sdp.len)
ilog(LOG_INFO, "Subscribe-request with SDP received - ignoring SDP");
if (!srms.length)
return "No call participants specified (no medias found)";
/* the `label=` option was possibly used above to select the from-tag --
* switch it out with `to-label=` or `set-label=` for monologue_subscribe_request
* below which sets the label based on `label` for a newly created monologue */
flags.label = flags.to_label;
if (flags.set_label.len) // set-label takes priority
flags.label = flags.set_label;
/* get destination monologue */
if (!flags.to_tag.len) {
/* generate one */
flags.to_tag = STR_CONST(rand_buf);
rand_hex_str(flags.to_tag.s, flags.to_tag.len / 2);
}
struct call_monologue *dest_ml = call_get_or_create_monologue(call, &flags.to_tag);
int ret = monologue_subscribe_request(&srms, dest_ml, &flags);
if (ret)
return "Failed to request subscription";
/* create new SDP */
ret = sdp_create(&sdp_out, dest_ml, &flags);
if (ret)
return "Failed to create SDP";
/* place return output SDP */
if (sdp_out.len) {
ctx->ngbuf->sdp_out = sdp_out.s;
parser->dict_add_str(output, "sdp", &sdp_out);
sdp_out = STR_NULL; /* ownership passed to output */
}
/* add single response ml tag if there's just one, but always add a list
* TODO: deprecate it, since initially added for monologue subscriptions.
*/
if (srms.length == 1) {
struct media_subscription *ms = srms.head->data;
struct call_monologue *source_ml = ms->monologue;
parser->dict_add_str_dup(output, "from-tag", &source_ml->tag);
}
parser_arg tag_medias = {0}, media_labels = {0};
if (flags.siprec) {
tag_medias = parser->dict_add_list(output, "tag-medias");
media_labels = parser->dict_add_dict(output, "media-labels");
}
parser_arg from_list = parser->dict_add_list(output, "from-tags");
for (__auto_type l = srms.head; l; l = l->next) {
struct media_subscription *ms = l->data;
struct call_monologue *source_ml = ms->monologue;
parser->list_add_str_dup(from_list, &source_ml->tag);
if (tag_medias.gen) {
parser_arg tag_label = parser->list_add_dict(tag_medias);
parser->dict_add_str(tag_label, "tag", &source_ml->tag);
if (source_ml->label.len)
parser->dict_add_str(tag_label, "label", &source_ml->label);
parser_arg medias = parser->dict_add_list(tag_label, "medias");
for (unsigned int i = 0; i < source_ml->medias->len; i++) {
struct call_media *media = source_ml->medias->pdata[i];
if (!media)
continue;
parser_arg med_ent = parser->list_add_dict(medias);
parser->dict_add_int(med_ent, "index", media->index);
parser->dict_add_str(med_ent, "type", &media->type);
parser->dict_add_str(med_ent, "label", &media->label);
parser->dict_add_string(med_ent, "mode", sdp_get_sendrecv(media));
if (media_labels.gen) {
parser_arg label =
parser->dict_add_dict(media_labels, media->label.s);
parser->dict_add_str(label, "tag", &source_ml->tag);
parser->dict_add_int(label, "index", media->index);
parser->dict_add_str(label, "type", &media->type);
if (source_ml->label.len)
parser->dict_add_str(label, "label", &source_ml->label);
parser->dict_add_string(label, "mode", sdp_get_sendrecv(media));
}
}
}
}
parser->dict_add_str_dup(output, "to-tag", &dest_ml->tag);
dequeue_sdp_fragments(dest_ml);
call_unlock_release_update(&call);
return NULL;
}
const char *call_subscribe_answer_ng(ng_command_ctx_t *ctx) {
g_auto(sdp_ng_flags) flags;
g_auto(sdp_sessions_q) parsed = TYPED_GQUEUE_INIT;
g_auto(sdp_streams_q) streams = TYPED_GQUEUE_INIT;
g_autoptr(call_t) call = NULL;
call_ng_process_flags(&flags, ctx);
if (!flags.call_id.s)
return "No call-id in message";
call = call_get(&flags.call_id);
if (!call)
return "Unknown call-ID";
if (sdp_parse(&flags.sdp, &parsed, &flags))
return "Failed to parse SDP";
if (sdp_streams(&parsed, &streams, &flags))
return "Incomplete SDP specification";
if (trickle_ice_update(ctx->ngbuf, call, &flags, &streams))
return NULL;
if (!flags.to_tag.s)
return "No to-tag in message";
if (!flags.sdp.len)
return "No SDP body in message";
// get destination monologue
struct call_monologue *dest_ml = call_get_monologue(call, &flags.to_tag);
if (!dest_ml)
return "To-tag not found";
int ret = monologue_subscribe_answer(dest_ml, &flags, &streams);
if (ret)
return "Failed to process subscription answer";
call_unlock_release_update(&call);
return NULL;
}
const char *call_unsubscribe_ng(ng_command_ctx_t *ctx) {
g_auto(sdp_ng_flags) flags;
g_autoptr(call_t) call = NULL;
call_ng_process_flags(&flags, ctx);
if (!flags.call_id.s)
return "No call-id in message";
call = call_get(&flags.call_id);
if (!call)
return "Unknown call-ID";
if (!flags.to_tag.s)
return "No to-tag in message";
// get destination monologue
struct call_monologue *dest_ml = call_get_or_create_monologue(call, &flags.to_tag);
if (!dest_ml)
return "To-tag not found";
int ret = monologue_unsubscribe(dest_ml, &flags);
if (ret)
return "Failed to unsubscribe";
call_unlock_release_update(&call);
return NULL;
}
const char *call_connect_ng(ng_command_ctx_t *ctx) {
g_auto(sdp_ng_flags) flags;
g_autoptr(call_t) call = NULL;
g_autoptr(call_t) call2 = NULL;
call_ng_process_flags(&flags, ctx);
if (!flags.call_id.s)
return "No call-id in message";
if (!flags.from_tag.s)
return "No from-tag in message";
if (!flags.to_tag.s)
return "No to-tag in message";
if (flags.to_call_id.s) {
call_get2_ret_t ret = call_get2(&call, &call2, &flags.call_id, &flags.to_call_id);
if (ret == CG2_NF1)
return "Unknown call-ID";
if (ret == CG2_NF2)
return "Unknown to-tag call-ID";
}
else {
call = call_get(&flags.call_id);
if (!call)
return "Unknown call-ID";
}
struct call_monologue *src_ml = call_get_or_create_monologue(call, &flags.from_tag);
if (!src_ml)
return "From-tag not found";
struct call_monologue *dest_ml = call_get_or_create_monologue(call2 ?: call, &flags.to_tag);
if (!dest_ml)
return "To-tag not found";
if (src_ml == dest_ml)
return "Trying to connect to self"; // XXX should this be allowed?
if (call2) {
if (!call_merge(call, &call2))
return "Failed to merge two calls into one";
}
dialogue_connect(src_ml, dest_ml, &flags);
call_unlock_release_update(&call);
return NULL;
}
const char *call_transform_ng(ng_command_ctx_t *ctx) {
g_auto(sdp_ng_flags) flags;
g_autoptr(call_t) call = NULL;
/*
* {
* command: transform
* [ call-id: ... ]
* [ from-tag: ... ]
* [ instance: ... ]
* [ interface: ... ]
* media: [
* {
* [ id: ... ]
* type: audio/video/...
* codec: [
* {
* input: {
* codec: G729
* payload type: 18
* clock rate: 8000
* channels: 1
* [ format: annexb=no ]
* [ options: bitrate=xxx ]
* },
* output: {
* ...
* },
* }, ...
* ],
* destination: {
* family: IP4
* address: 127.0.0.1
* port: 4444
* },
* },
* ...
* ]
* }
*/
call_ng_process_flags(&flags, ctx);
if (flags.instance.len && !str_cmp_str(&rtpe_instance_id, &flags.instance))
return "Transform loop detected";
char rand_call_id[65];
if (!flags.call_id.len)
flags.call_id = STR_LEN(rand_hex_str(rand_call_id, 32), 64);
char rand_from_tag[65];
if (!flags.from_tag.len)
flags.from_tag = STR_LEN(rand_hex_str(rand_from_tag, 32), 64);
call = call_get_or_create(&flags.call_id, false);
struct call_monologue *ml = call_get_or_create_monologue(call, &flags.from_tag);
g_auto(medias_q) mq = TYPED_GQUEUE_INIT;
if (!monologue_transform(ml, &flags, &mq))
return "Failed to set up transform";
const ng_parser_t *parser = ctx->parser_ctx.parser;
parser->dict_add_str_dup(ctx->resp, "call-id", &call->callid);
parser->dict_add_str_dup(ctx->resp, "from-tag", &ml->tag);
parser_arg list = parser->dict_add_list(ctx->resp, "media");
for (__auto_type l = mq.head; l; l = l->next) {
__auto_type m = l->data;
parser_arg dict = parser->list_add_dict(list);
parser->dict_add_str_dup(dict, "id", &m->media_id);
__auto_type ps = m->streams.head->data;
__auto_type sfd = ps->selected_sfd;
parser->dict_add_str(dict, "family", STR_PTR(sfd->socket.local.address.family->rfc_name));
parser->dict_add_str_dup(dict, "address", STR_PTR(sockaddr_print_buf(&sfd->socket.local.address)));
parser->dict_add_int(dict, "port", sfd->socket.local.port);
}
call_unlock_release_update(&call);
return NULL;
}
void call_interfaces_free(void) {
if (info_re) {
pcre2_code_free(info_re);
info_re = NULL;
}
if (streams_re) {
pcre2_code_free(streams_re);
streams_re= NULL;
}
t_hash_table_destroy(rtpe_signalling_templates);
}
static void parse_templates(charp_ht templates) {
if (!t_hash_table_is_set(templates))
return;
charp_ht_iter iter;
t_hash_table_iter_init(&iter, templates);
char *keyp, *valuep;
while (t_hash_table_iter_next(&iter, &keyp, &valuep)) {
char *key = keyp;
char *value = valuep;
t_hash_table_insert(rtpe_signalling_templates, str_dup(STR_PTR(key)), str_dup(STR_PTR(value)));
}
// look for templates matching known commands
for (unsigned int i = 0; i < OP_COUNT; i++) {
const char *cmd = ng_command_strings[i];
str *tmpl = t_hash_table_lookup(rtpe_signalling_templates, STR_PTR(cmd));
if (tmpl)
rtpe_default_signalling_templates[i] = *tmpl;
}
// finally look for "default" and store it in the OTHER slot
str *tmpl = t_hash_table_lookup(rtpe_signalling_templates, STR_PTR("default"));
if (tmpl)
rtpe_default_signalling_templates[OP_OTHER] = *tmpl;
}
int call_interfaces_init(charp_ht templates) {
int errcode;
PCRE2_SIZE erroff;
info_re = pcre2_compile((PCRE2_SPTR8) "^([^:,]+)(?::(.*?))?(?:$|,)", PCRE2_ZERO_TERMINATED,
PCRE2_DOLLAR_ENDONLY | PCRE2_DOTALL, &errcode, &erroff, NULL);
if (!info_re)
return -1;
streams_re = pcre2_compile((PCRE2_SPTR8) "^([\\d.]+):(\\d+)(?::(.*?))?(?:$|,)", PCRE2_ZERO_TERMINATED,
PCRE2_DOLLAR_ENDONLY | PCRE2_DOTALL, &errcode, &erroff, NULL);
if (!streams_re)
return -1;
rtpe_signalling_templates = str_case_value_ht_new();
parse_templates(templates);
return 0;
}
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