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module-rtp: data and ctrl socket have different initiator

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This commit is contained in:
Wim Taymans 2023-03-07 12:04:50 +01:00
parent c5effbd979
commit 7b13f6d26b
1 changed files with 37 additions and 25 deletions
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62
src/modules/module-rtp-session.c
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@ -196,7 +196,8 @@ struct session {
int ck_count;
uint64_t next_time;
uint32_t initiator;
uint32_t ctrl_initiator;
uint32_t data_initiator;
uint32_t remote_ssrc;
uint32_t ssrc;
@ -344,7 +345,7 @@ static void session_update_state(struct session *sess, int state)
if (sess->state == state)
return;
pw_log_info("session initiator:%08x state:%d", sess->initiator, state);
pw_log_info("session ssrc:%08x state:%d", sess->ssrc, state);
sess->state = state;
switch (state) {
@ -375,7 +376,7 @@ static void send_apple_midi_cmd_in(struct session *sess, bool ctrl)
spa_zero(hdr);
hdr.cmd = htonl(APPLE_MIDI_CMD_IN);
hdr.protocol = htonl(2);
hdr.initiator = htonl(sess->initiator);
hdr.initiator = htonl(ctrl ? sess->ctrl_initiator : sess->data_initiator);
hdr.ssrc = htonl(sess->ssrc);
iov[0].iov_base = &hdr;
@ -411,7 +412,7 @@ static void send_apple_midi_cmd_by(struct session *sess, bool ctrl)
spa_zero(hdr);
hdr.cmd = htonl(APPLE_MIDI_CMD_BY);
hdr.protocol = htonl(2);
hdr.initiator = htonl(sess->initiator);
hdr.initiator = htonl(ctrl ? sess->ctrl_initiator : sess->data_initiator);
hdr.ssrc = htonl(sess->ssrc);
iov[0].iov_base = &hdr;
@ -432,8 +433,12 @@ static void session_establish(struct session *sess)
case SESSION_STATE_INIT:
/* we initiate */
sess->we_initiated = true;
pw_log_info("start session initiator:%08x %u %u", sess->initiator,
sess->ctrl_initiator = pw_rand32();
sess->data_initiator = pw_rand32();
pw_log_info("start session SSRC:%08x %u %u", sess->ssrc,
sess->ctrl_ready, sess->data_ready);
if (!sess->ctrl_ready)
send_apple_midi_cmd_in(sess, true);
else if (!sess->data_ready)
@ -454,7 +459,7 @@ static void session_stop(struct session *sess)
{
if (!sess->we_initiated)
return;
pw_log_info("stop session initiator:%08x %u %u", sess->initiator,
pw_log_info("stop session SSRC:%08x %u %u", sess->ssrc,
sess->ctrl_ready, sess->data_ready);
if (sess->ctrl_ready) {
send_apple_midi_cmd_by(sess, true);
@ -591,7 +596,6 @@ static struct session *make_session(struct impl *impl, struct pw_properties *pro
impl->n_sessions++;
sess->impl = impl;
sess->initiator = pw_properties_get_uint32(props, "rtp.initiator", pw_rand32());
sess->ssrc = pw_rand32();
str = pw_properties_get(props, "sess.name");
@ -640,17 +644,19 @@ static struct session *find_session_by_addr_name(struct impl *impl,
{
struct session *sess;
spa_list_for_each(sess, &impl->sessions, link) {
pw_log_info("%p '%s' '%s'", sess, name, sess->name);
if (cmp_ip(sa, &sess->ctrl_addr) &&
spa_streq(sess->name, name))
return sess;
}
return NULL;
}
static struct session *find_session_by_initiator(struct impl *impl, uint32_t initiator)
static struct session *find_session_by_initiator(struct impl *impl, uint32_t initiator, bool ctrl)
{
struct session *sess;
spa_list_for_each(sess, &impl->sessions, link) {
if (sess->initiator == initiator)
uint32_t target = ctrl ? sess->ctrl_initiator : sess->data_initiator;
if (target == initiator)
return sess;
}
return NULL;
@ -683,25 +689,24 @@ static void parse_apple_midi_cmd_in(struct impl *impl, bool ctrl, uint8_t *buffe
ssrc = ntohl(hdr->ssrc);
get_ip(sa, addr, sizeof(addr), &port);
pw_log_info("IN from %s:%d %s %08x", addr, port, hdr->name, ssrc);
sess = find_session_by_initiator(impl, initiator);
if (sess == NULL)
sess = find_session_by_addr_name(impl, sa, hdr->name);
pw_log_info("IN from %s:%d %s ssrc:%08x initiator:%08x",
addr, port, hdr->name, ssrc, initiator);
if (ctrl) {
sess = find_session_by_addr_name(impl, sa, hdr->name);
if (sess == NULL) {
pw_log_warn("receive ctrl IN from nonexisting session %08x", initiator);
pw_log_warn("receive ctrl IN from nonexisting session %s", hdr->name);
success = false;
} else {
if (sess->ctrl_ready) {
pw_log_warn("receive ctrl IN from existing session %08x", initiator);
success = false;
if (sess->ctrl_ready &&
(sess->remote_ssrc != ssrc || sess->ctrl_initiator != initiator)) {
pw_log_warn("receive ctrl IN from existing initiator:%08x", initiator);
}
}
if (success) {
sess->we_initiated = false;
sess->initiator = initiator;
sess->remote_ssrc = ssrc;
sess->ctrl_initiator = initiator;
sess->ctrl_addr = *sa;
sess->ctrl_len = salen;
sess->ctrl_ready = true;
@ -709,12 +714,18 @@ static void parse_apple_midi_cmd_in(struct impl *impl, bool ctrl, uint8_t *buffe
}
}
else {
sess = find_session_by_ssrc(impl, ssrc);
if (sess == NULL) {
pw_log_warn("receive data IN from nonexisting session %08x", initiator);
pw_log_warn("receive data IN from nonexisting ssrc:%08x", ssrc);
success = false;
} else {
pw_log_info("got data IN request %08x, session established", initiator);
sess->remote_ssrc = ssrc;
if (sess->data_ready) {
pw_log_warn("receive data IN from existing initiator:%08x", initiator);
}
}
if (success) {
pw_log_info("got data IN initiator:%08x, session established", initiator);
sess->data_initiator = initiator;
sess->data_addr = *sa;
sess->data_len = salen;
sess->data_ready = true;
@ -752,7 +763,7 @@ static void parse_apple_midi_cmd_ok(struct impl *impl, bool ctrl, uint8_t *buffe
uint32_t initiator = ntohl(hdr->initiator);
struct session *sess;
sess = find_session_by_initiator(impl, initiator);
sess = find_session_by_initiator(impl, initiator, ctrl);
if (sess == NULL || !sess->we_initiated) {
pw_log_warn("received OK from nonexisting session %u", initiator);
return;
@ -848,7 +859,7 @@ static void parse_apple_midi_cmd_by(struct impl *impl, bool ctrl, uint8_t *buffe
uint32_t initiator = ntohl(hdr->initiator);
struct session *sess;
sess = find_session_by_initiator(impl, initiator);
sess = find_session_by_initiator(impl, initiator, ctrl);
if (sess == NULL || sess->we_initiated) {
pw_log_warn("received BY from nonexisting initiator %08x", initiator);
return;
@ -920,6 +931,7 @@ receive_error:
return;
short_packet:
pw_log_warn("short packet received");
spa_debug_mem(0, buffer, len);
return;
}
@ -964,6 +976,7 @@ receive_error:
return;
short_packet:
pw_log_warn("short packet received");
spa_debug_mem(0, buffer, len);
return;
unknown_ssrc:
pw_log_debug("unknown SSRC %08x", ssrc);
@ -1285,7 +1298,6 @@ static struct service *make_service(struct impl *impl, const struct service_info
s->impl = impl;
spa_list_append(&impl->service_list, &s->link);
s->info.interface = info->interface;
s->info.protocol = info->protocol;
s->info.name = strdup(info->name);