int
rtpp_command_ul_handle(struct cfg *cf, struct rtpp_command *cmd,
struct common_cmd_args *ccap, struct ul_opts *ulop,
struct rtpp_session *sp, int sidx)
{
int pidx, lport, i;
int fds[2];
char *cp;
struct rtpp_session *spa, *spb;
pidx = 1;
lport = 0;
spa = spb = NULL;
fds[0] = fds[1] = -1;
if (sidx != -1) {
assert(ccap->op == UPDATE || ccap->op == LOOKUP);
spa = sp;
if (spa->fds[sidx] == -1) {
if (ulop->local_addr != NULL) {
spa->laddr[sidx] = ulop->local_addr;
}
if (rtpp_create_listener(cf, spa->laddr[sidx], &lport, fds) == -1) {
rtpp_log_write(RTPP_LOG_ERR, spa->log, "can't create listener");
reply_error(cf, cmd, ECODE_LSTFAIL_1);
goto err_undo_0;
}
assert(spa->fds[sidx] == -1);
spa->fds[sidx] = fds[0];
assert(spa->rtcp->fds[sidx] == -1);
spa->rtcp->fds[sidx] = fds[1];
spa->ports[sidx] = lport;
spa->rtcp->ports[sidx] = lport + 1;
if (spa->complete == 0) {
cmd->csp->nsess_complete.cnt++;
}
spa->complete = spa->rtcp->complete = 1;
append_session(cf, spa, sidx);
}
if (ulop->weak)
spa->weak[sidx] = 1;
else if (ccap->op == UPDATE)
spa->strong = 1;
lport = spa->ports[sidx];
ulop->lia[0] = spa->laddr[sidx];
pidx = (sidx == 0) ? 1 : 0;
spa->ttl_mode = cf->stable->ttl_mode;
spa->ttl[0] = cf->stable->max_ttl;
spa->ttl[1] = cf->stable->max_ttl;
if (ccap->op == UPDATE) {
rtpp_log_write(RTPP_LOG_INFO, spa->log,
"adding %s flag to existing session, new=%d/%d/%d",
ulop->weak ? ( sidx ? "weak[1]" : "weak[0]" ) : "strong",
spa->strong, spa->weak[0], spa->weak[1]);
}
rtpp_log_write(RTPP_LOG_INFO, spa->log,
"lookup on ports %d/%d, session timer restarted", spa->ports[0],
spa->ports[1]);
} else {
assert(ccap->op == UPDATE);
rtpp_log_write(RTPP_LOG_INFO, cf->stable->glog,
"new session %s, tag %s requested, type %s",
ccap->call_id, ccap->from_tag, ulop->weak ? "weak" : "strong");
if (cf->stable->slowshutdown != 0) {
rtpp_log_write(RTPP_LOG_INFO, cf->stable->glog,
"proxy is in the deorbiting-burn mode, new session rejected");
reply_error(cf, cmd, ECODE_SLOWSHTDN);
goto err_undo_0;
}
if (ulop->local_addr != NULL) {
ulop->lia[0] = ulop->lia[1] = ulop->local_addr;
}
if (rtpp_create_listener(cf, ulop->lia[0], &lport, fds) == -1) {
rtpp_log_write(RTPP_LOG_ERR, cf->stable->glog, "can't create listener");
reply_error(cf, cmd, ECODE_LSTFAIL_2);
goto err_undo_0;
}
/*
* Session creation. If creation is requested with weak flag,
* set weak[0].
*/
spa = malloc(sizeof(*spa));
if (spa == NULL) {
handle_nomem(cf, cmd, ECODE_NOMEM_4, ulop,
fds, spa, spb);
return (-1);
}
/* spb is RTCP twin session for this one. */
spb = malloc(sizeof(*spb));
if (spb == NULL) {
handle_nomem(cf, cmd, ECODE_NOMEM_5, ulop,
fds, spa, spb);
return (-1);
}
memset(spa, 0, sizeof(*spa));
memset(spb, 0, sizeof(*spb));
spa->init_ts = cmd->dtime;
spb->init_ts = cmd->dtime;
for (i = 0; i < 2; i++) {
spa->fds[i] = spb->fds[i] = -1;
spa->last_update[i] = 0;
spb->last_update[i] = 0;
}
spa->call_id = strdup(ccap->call_id);
if (spa->call_id == NULL) {
handle_nomem(cf, cmd, ECODE_NOMEM_6, ulop,
fds, spa, spb);
return (-1);
}
spb->call_id = spa->call_id;
spa->tag = strdup(ccap->from_tag);
spa->tag_nomedianum = strdup(ccap->from_tag);
if (spa->tag == NULL) {
handle_nomem(cf, cmd, ECODE_NOMEM_7, ulop,
fds, spa, spb);
return (-1);
}
cp = strrchr(spa->tag_nomedianum, ';');
if (cp != NULL)
*cp = '\0';
spb->tag = spa->tag;
spb->tag_nomedianum = spa->tag_nomedianum;
for (i = 0; i < 2; i++) {
spa->rrcs[i] = NULL;
spb->rrcs[i] = NULL;
spa->laddr[i] = ulop->lia[i];
spb->laddr[i] = ulop->lia[i];
}
spa->strong = spa->weak[0] = spa->weak[1] = 0;
if (ulop->weak)
spa->weak[0] = 1;
else
spa->strong = 1;
assert(spa->fds[0] == -1);
spa->fds[0] = fds[0];
assert(spb->fds[0] == -1);
spb->fds[0] = fds[1];
spa->ports[0] = lport;
spb->ports[0] = lport + 1;
spa->ttl[0] = cf->stable->max_ttl;
spa->ttl[1] = cf->stable->max_ttl;
spb->ttl[0] = -1;
spb->ttl[1] = -1;
spa->log = rtpp_log_open(cf->stable, "rtpproxy", spa->call_id, 0);
rtpp_log_setlevel(spa->log, cf->stable->log_level);
spb->log = spa->log;
spa->rtcp = spb;
spb->rtcp = NULL;
spa->rtp = NULL;
spb->rtp = spa;
spa->sridx = spb->sridx = -1;
append_session(cf, spa, 0);
append_session(cf, spa, 1);
spa->hte = CALL_METHOD(cf->stable->sessions_ht, append, spa->call_id, spa);
if (spa->hte == NULL) {
remove_session(cf, spa);
remove_session(cf, spb);
handle_nomem(cf, cmd, ECODE_NOMEM_8, ulop, fds, spa, spb);
return (-1);
}
cf->sessions_created++;
cf->sessions_active++;
cmd->csp->nsess_created.cnt++;
/*
* Each session can consume up to 5 open file descriptors (2 RTP,
* 2 RTCP and 1 logging) so that warn user when he is likely to
* exceed 80% mark on hard limit.
*/
if (cf->sessions_active > (rtpp_rlim_max(cf) * 80 / (100 * 5)) &&
cf->nofile_limit_warned == 0) {
cf->nofile_limit_warned = 1;
rtpp_log_write(RTPP_LOG_WARN, cf->stable->glog, "passed 80%% "
"threshold on the open file descriptors limit (%d), "
"consider increasing the limit using -L command line "
"option", (int)rtpp_rlim_max(cf));
}
rtpp_log_write(RTPP_LOG_INFO, spa->log, "new session on a port %d created, "
"tag %s", lport, ccap->from_tag);
if (cf->stable->record_all != 0) {
handle_copy(cf, spa, 0, NULL, 0);
handle_copy(cf, spa, 1, NULL, 0);
}
}
if (ccap->op == UPDATE) {
if (rtpp_th_get_sn(cf->timeout_handler) == NULL && ulop->socket_name_u != NULL)
rtpp_log_write(RTPP_LOG_ERR, spa->log, "must permit notification socket with -n");
if (spa->timeout_data.notify_tag != NULL) {
free(spa->timeout_data.notify_tag);
spa->timeout_data.notify_tag = NULL;
}
if (rtpp_th_get_sn(cf->timeout_handler) != NULL && ulop->socket_name_u != NULL) {
if (strcmp(rtpp_th_get_sn(cf->timeout_handler), ulop->socket_name_u) != 0) {
rtpp_log_write(RTPP_LOG_ERR, spa->log, "invalid socket name %s", ulop->socket_name_u);
ulop->socket_name_u = NULL;
} else {
rtpp_log_write(RTPP_LOG_INFO, spa->log, "setting timeout handler");
spa->timeout_data.handler = cf->timeout_handler;
spa->timeout_data.notify_tag = strdup(ulop->notify_tag);
}
} else if (ulop->socket_name_u == NULL && spa->timeout_data.handler != NULL) {
spa->timeout_data.handler = NULL;
rtpp_log_write(RTPP_LOG_INFO, spa->log, "disabling timeout handler");
}
}
if (ulop->ia[0] != NULL && ulop->ia[1] != NULL) {
if (spa->addr[pidx] != NULL)
spa->last_update[pidx] = cmd->dtime;
if (spa->rtcp->addr[pidx] != NULL)
spa->rtcp->last_update[pidx] = cmd->dtime;
/*
* Unless the address provided by client historically
* cannot be trusted and address is different from one
* that we recorded update it.
*/
if (spa->untrusted_addr[pidx] == 0 && !(spa->addr[pidx] != NULL &&
SA_LEN(ulop->ia[0]) == SA_LEN(spa->addr[pidx]) &&
memcmp(ulop->ia[0], spa->addr[pidx], SA_LEN(ulop->ia[0])) == 0)) {
rtpp_log_write(RTPP_LOG_INFO, spa->log, "pre-filling %s's address "
"with %s:%s", (pidx == 0) ? "callee" : "caller", ulop->addr, ulop->port);
if (spa->addr[pidx] != NULL) {
if (spa->canupdate[pidx] == 0) {
if (spa->prev_addr[pidx] != NULL)
free(spa->prev_addr[pidx]);
spa->prev_addr[pidx] = spa->addr[pidx];
} else {
free(spa->addr[pidx]);
}
}
spa->addr[pidx] = ulop->ia[0];
ulop->ia[0] = NULL;
}
if (spa->rtcp->untrusted_addr[pidx] == 0 && !(spa->rtcp->addr[pidx] != NULL &&
SA_LEN(ulop->ia[1]) == SA_LEN(spa->rtcp->addr[pidx]) &&
memcmp(ulop->ia[1], spa->rtcp->addr[pidx], SA_LEN(ulop->ia[1])) == 0)) {
if (spa->rtcp->addr[pidx] != NULL) {
if (spa->rtcp->canupdate[pidx] == 0) {
if (spa->rtcp->prev_addr[pidx] != NULL)
free(spa->rtcp->prev_addr[pidx]);
spa->rtcp->prev_addr[pidx] = spa->rtcp->addr[pidx];
} else {
free(spa->rtcp->addr[pidx]);
}
}
spa->rtcp->addr[pidx] = ulop->ia[1];
ulop->ia[1] = NULL;
}
}
spa->asymmetric[pidx] = spa->rtcp->asymmetric[pidx] = ulop->asymmetric;
spa->canupdate[pidx] = spa->rtcp->canupdate[pidx] = NOT(ulop->asymmetric);
if (spa->codecs[pidx] != NULL) {
free(spa->codecs[pidx]);
spa->codecs[pidx] = NULL;
}
if (ulop->codecs != NULL) {
spa->codecs[pidx] = ulop->codecs;
ulop->codecs = NULL;
}
if (ulop->requested_nsamples > 0) {
rtpp_log_write(RTPP_LOG_INFO, spa->log, "RTP packets from %s "
"will be resized to %d milliseconds",
(pidx == 0) ? "callee" : "caller", ulop->requested_nsamples / 8);
} else if (spa->resizers[pidx] != NULL) {
rtpp_log_write(RTPP_LOG_INFO, spa->log, "Resizing of RTP "
"packets from %s has been disabled",
(pidx == 0) ? "callee" : "caller");
}
if (ulop->requested_nsamples > 0) {
if (spa->resizers[pidx] != NULL) {
rtp_resizer_set_onsamples(spa->resizers[pidx], ulop->requested_nsamples);
} else {
spa->resizers[pidx] = rtp_resizer_new(ulop->requested_nsamples);
}
} else if (spa->resizers[pidx] != NULL) {
rtp_resizer_free(spa->resizers[pidx]);
spa->resizers[pidx] = NULL;
}
assert(lport != 0);
ulop->reply.port = lport;
ulop->reply.ia = ulop->lia[0];
if (cf->stable->advaddr[0] != NULL) {
if (cf->stable->bmode != 0 && cf->stable->advaddr[1] != NULL &&
ulop->lia[0] == cf->stable->bindaddr[1]) {
ulop->reply.ia_ov = cf->stable->advaddr[1];
} else {
ulop->reply.ia_ov = cf->stable->advaddr[0];
}
}
ul_reply_port(cf, cmd, &ulop->reply);
rtpp_command_ul_opts_free(ulop);
return (0);
err_undo_0:
rtpp_command_ul_opts_free(ulop);
return (-1);
}
static void
rtpp_cmd_queue_run(void *arg)
{
struct rtpp_cmd_async_cf *cmd_cf;
struct rtpp_cmd_pollset *psp;
int i, nready, rval;
double sptime;
#if 0
double eptime, tused;
#endif
struct rtpp_command_stats *csp;
struct rtpp_stats_obj *rtpp_stats_cf;
cmd_cf = (struct rtpp_cmd_async_cf *)arg;
rtpp_stats_cf = cmd_cf->cf_save->stable->rtpp_stats;
csp = &cmd_cf->cstats;
psp = &cmd_cf->pset;
for (;;) {
sptime = getdtime();
pthread_mutex_lock(&psp->pfds_mutex);
if (psp->pfds_used == 0) {
pthread_mutex_unlock(&psp->pfds_mutex);
if (wait_next_clock(cmd_cf) == TSTATE_CEASE) {
break;
}
continue;
}
nready = poll(psp->pfds, psp->pfds_used, 2);
if (nready == 0) {
pthread_mutex_unlock(&psp->pfds_mutex);
if (wait_next_clock(cmd_cf) == TSTATE_CEASE) {
break;
}
continue;
}
if (nready < 0 && errno == EINTR) {
pthread_mutex_unlock(&psp->pfds_mutex);
continue;
}
if (nready > 0) {
for (i = 0; i < psp->pfds_used; i++) {
if ((psp->pfds[i].revents & (POLLERR | POLLHUP)) != 0) {
if (RTPP_CTRL_ACCEPTABLE(psp->rccs[i]->csock)) {
goto closefd;
}
if (psp->rccs[i]->csock->type == RTPC_STDIO && (psp->pfds[i].revents & POLLIN) == 0) {
goto closefd;
}
}
if ((psp->pfds[i].revents & POLLIN) == 0) {
continue;
}
if (RTPP_CTRL_ISSTREAM(psp->rccs[i]->csock)) {
rval = process_commands_stream(cmd_cf->cf_save, psp->rccs[i], sptime, csp, rtpp_stats_cf);
} else {
rval = process_commands(psp->rccs[i]->csock, cmd_cf->cf_save, psp->pfds[i].fd,
sptime, csp, rtpp_stats_cf, cmd_cf->rcache);
}
/*
* Shut down non-datagram sockets that got I/O error
* and also all non-continuous UNIX sockets are recycled
* after each use.
*/
if (!RTPP_CTRL_ISDG(psp->rccs[i]->csock) && (rval == -1 || !RTPP_CTRL_ISSTREAM(psp->rccs[i]->csock))) {
closefd:
if (psp->rccs[i]->csock->type == RTPC_STDIO && psp->rccs[i]->csock->exit_on_close != 0) {
cmd_cf->cf_save->stable->slowshutdown = 1;
}
rtpp_cmd_connection_dtor(psp->rccs[i]);
psp->pfds_used--;
if (psp->pfds_used > 0 && i < psp->pfds_used) {
memcpy(&psp->pfds[i], &psp->pfds[i + 1],
(psp->pfds_used - i) * sizeof(struct pollfd));
memcpy(&psp->rccs[i], &psp->rccs[i + 1],
(psp->pfds_used - i) * sizeof(struct rtpp_ctrl_connection *));
}
}
}
}
pthread_mutex_unlock(&psp->pfds_mutex);
if (nready > 0) {
rtpp_anetio_pump(cmd_cf->cf_save->stable->rtpp_netio_cf);
}
#if 0
eptime = getdtime();
pthread_mutex_lock(&cmd_cf->cmd_mutex);
recfilter_apply(&cmd_cf->average_load, (eptime - sptime + tused) * cmd_cf->cf_save->stable->target_pfreq);
pthread_mutex_unlock(&cmd_cf->cmd_mutex);
#endif
flush_cstats(rtpp_stats_cf, csp);
#if 0
#if RTPP_DEBUG
if (last_ctick % (unsigned int)cmd_cf->cf_save->stable->target_pfreq == 0 || last_ctick < 1000) {
rtpp_log_write(RTPP_LOG_DBUG, cmd_cf->cf_save->stable->glog, "rtpp_cmd_queue_run %lld sptime %f eptime %f, CSV: %f,%f,%f,%f,%f", \
last_ctick, sptime, eptime, (double)last_ctick / cmd_cf->cf_save->stable->target_pfreq, \
eptime - sptime + tused, eptime, sptime, tused);
rtpp_log_write(RTPP_LOG_DBUG, cmd_cf->cf_save->stable->glog, "run %lld average load %f, CSV: %f,%f", last_ctick, \
cmd_cf->average_load.lastval * 100.0, (double)last_ctick / cmd_cf->cf_save->stable->target_pfreq, cmd_cf->average_load.lastval);
}
#endif
#endif
}
}
void
remove_session(struct cfg *cf, struct rtpp_session *sp)
{
int i;
/* Make sure structure is properly locked */
assert(pthread_mutex_islocked(&cf->glock) == 1);
assert(pthread_mutex_islocked(&cf->sessinfo.lock) == 1);
rtpp_log_write(RTPP_LOG_INFO, sp->log, "RTP stats: %lu in from callee, %lu "
"in from caller, %lu relayed, %lu dropped", sp->pcount[0], sp->pcount[1],
sp->pcount[2], sp->pcount[3]);
rtpp_log_write(RTPP_LOG_INFO, sp->log, "RTCP stats: %lu in from callee, %lu "
"in from caller, %lu relayed, %lu dropped", sp->rtcp->pcount[0],
sp->rtcp->pcount[1], sp->rtcp->pcount[2], sp->rtcp->pcount[3]);
rtpp_log_write(RTPP_LOG_INFO, sp->log, "session on ports %d/%d is cleaned up",
sp->ports[0], sp->ports[1]);
for (i = 0; i < 2; i++) {
if (sp->addr[i] != NULL)
free(sp->addr[i]);
if (sp->prev_addr[i] != NULL)
free(sp->prev_addr[i]);
if (sp->rtcp->addr[i] != NULL)
free(sp->rtcp->addr[i]);
if (sp->rtcp->prev_addr[i] != NULL)
free(sp->rtcp->prev_addr[i]);
if (sp->fds[i] != -1) {
close(sp->fds[i]);
assert(cf->sessinfo.sessions[sp->sidx[i]] == sp);
cf->sessinfo.sessions[sp->sidx[i]] = NULL;
assert(cf->sessinfo.pfds[sp->sidx[i]].fd == sp->fds[i]);
cf->sessinfo.pfds[sp->sidx[i]].fd = -1;
cf->sessinfo.pfds[sp->sidx[i]].events = 0;
}
if (sp->rtcp->fds[i] != -1) {
close(sp->rtcp->fds[i]);
assert(cf->sessinfo.sessions[sp->rtcp->sidx[i]] == sp->rtcp);
cf->sessinfo.sessions[sp->rtcp->sidx[i]] = NULL;
assert(cf->sessinfo.pfds[sp->rtcp->sidx[i]].fd == sp->rtcp->fds[i]);
cf->sessinfo.pfds[sp->rtcp->sidx[i]].fd = -1;
cf->sessinfo.pfds[sp->rtcp->sidx[i]].events = 0;
}
if (sp->rrcs[i] != NULL)
rclose(sp, sp->rrcs[i], 1);
if (sp->rtcp->rrcs[i] != NULL)
rclose(sp, sp->rtcp->rrcs[i], 1);
if (sp->rtps[i] != NULL) {
cf->rtp_servers[sp->sridx] = NULL;
rtp_server_free(sp->rtps[i]);
}
if (sp->codecs[i] != NULL)
free(sp->codecs[i]);
if (sp->rtcp->codecs[i] != NULL)
free(sp->rtcp->codecs[i]);
}
if (sp->timeout_data.notify_tag != NULL)
free(sp->timeout_data.notify_tag);
hash_table_remove(cf, sp);
if (sp->call_id != NULL)
free(sp->call_id);
if (sp->tag != NULL)
free(sp->tag);
rtpp_log_close(sp->log);
free(sp->rtcp);
rtp_resizer_free(&sp->resizers[0]);
rtp_resizer_free(&sp->resizers[1]);
free(sp);
cf->sessions_active--;
}
struct ul_opts *
rtpp_command_ul_opts_parse(struct cfg *cf, struct rtpp_command *cmd,
struct common_cmd_args *ccap)
{
int len, tpf, n, i;
char c;
char *cp, *t;
const char *errmsg;
struct sockaddr_storage tia;
struct ul_opts *ulop;
ulop = malloc(sizeof(struct ul_opts));
if (ulop == NULL) {
reply_error(cf, cmd, ECODE_NOMEM_1);
goto err_undo_0;
}
memset(ulop, '\0', sizeof(struct ul_opts));
ul_opts_init(cf, ulop);
if (ccap->op == UPDATE && cmd->argc > 6) {
if (cmd->argc == 8) {
ulop->socket_name_u = cmd->argv[6];
ulop->notify_tag = cmd->argv[7];
} else {
ulop->socket_name_u = cmd->argv[5];
ulop->notify_tag = cmd->argv[6];
ccap->to_tag = NULL;
}
if (strncmp("unix:", ulop->socket_name_u, 5) == 0)
ulop->socket_name_u += 5;
len = url_unquote((uint8_t *)ulop->notify_tag, strlen(ulop->notify_tag));
if (len == -1) {
rtpp_log_write(RTPP_LOG_ERR, cf->stable->glog,
"command syntax error - invalid URL encoding");
reply_error(cf, cmd, ECODE_PARSE_10);
goto err_undo_1;
}
ulop->notify_tag[len] = '\0';
}
ulop->addr = cmd->argv[2];
ulop->port = cmd->argv[3];
/* Process additional command modifiers */
for (cp = cmd->argv[0] + 1; *cp != '\0'; cp++) {
switch (*cp) {
case 'a':
case 'A':
ulop->asymmetric = 1;
break;
case 'e':
case 'E':
if (ulop->lidx < 0) {
rtpp_log_write(RTPP_LOG_ERR, cf->stable->glog, "command syntax error");
reply_error(cf, cmd, ECODE_PARSE_11);
goto err_undo_1;
}
ulop->lia[ulop->lidx] = cf->stable->bindaddr[1];
ulop->lidx--;
break;
case 'i':
case 'I':
if (ulop->lidx < 0) {
rtpp_log_write(RTPP_LOG_ERR, cf->stable->glog, "command syntax error");
reply_error(cf, cmd, ECODE_PARSE_12);
goto err_undo_1;
}
ulop->lia[ulop->lidx] = cf->stable->bindaddr[0];
ulop->lidx--;
break;
case '6':
ulop->pf = AF_INET6;
break;
case 's':
case 'S':
ulop->asymmetric = 0;
break;
case 'w':
case 'W':
ulop->weak = 1;
break;
case 'z':
case 'Z':
ulop->requested_nsamples = (strtol(cp + 1, &cp, 10) / 10) * 80;
if (ulop->requested_nsamples <= 0) {
rtpp_log_write(RTPP_LOG_ERR, cf->stable->glog, "command syntax error");
reply_error(cf, cmd, ECODE_PARSE_13);
goto err_undo_1;
}
cp--;
break;
case 'c':
case 'C':
cp += 1;
for (t = cp; *cp != '\0'; cp++) {
if (!isdigit(*cp) && *cp != ',')
break;
}
if (t == cp) {
rtpp_log_write(RTPP_LOG_ERR, cf->stable->glog, "command syntax error");
reply_error(cf, cmd, ECODE_PARSE_14);
goto err_undo_1;
}
ulop->codecs = malloc(cp - t + 1);
if (ulop->codecs == NULL) {
reply_error(cf, cmd, ECODE_NOMEM_2);
goto err_undo_1;
}
memcpy(ulop->codecs, t, cp - t);
ulop->codecs[cp - t] = '\0';
cp--;
break;
case 'l':
case 'L':
len = extractaddr(cp + 1, &t, &cp, &tpf);
if (len == -1) {
rtpp_log_write(RTPP_LOG_ERR, cf->stable->glog, "command syntax error");
reply_error(cf, cmd, ECODE_PARSE_15);
goto err_undo_1;
}
c = t[len];
t[len] = '\0';
pthread_mutex_unlock(&cf->glock);
ulop->local_addr = host2bindaddr(cf, t, tpf, &errmsg);
pthread_mutex_lock(&cf->glock);
if (ulop->local_addr == NULL) {
rtpp_log_write(RTPP_LOG_ERR, cf->stable->glog,
"invalid local address: %s: %s", t, errmsg);
reply_error(cf, cmd, ECODE_INVLARG_1);
goto err_undo_1;
}
t[len] = c;
cp--;
break;
case 'r':
case 'R':
len = extractaddr(cp + 1, &t, &cp, &tpf);
if (len == -1) {
rtpp_log_write(RTPP_LOG_ERR, cf->stable->glog, "command syntax error");
reply_error(cf, cmd, ECODE_PARSE_16);
goto err_undo_1;
}
c = t[len];
t[len] = '\0';
ulop->local_addr = alloca(sizeof(struct sockaddr_storage));
pthread_mutex_unlock(&cf->glock);
n = resolve(ulop->local_addr, tpf, t, SERVICE, AI_PASSIVE);
pthread_mutex_lock(&cf->glock);
if (n != 0) {
rtpp_log_write(RTPP_LOG_ERR, cf->stable->glog,
"invalid remote address: %s: %s", t, gai_strerror(n));
reply_error(cf, cmd, ECODE_INVLARG_2);
goto err_undo_1;
}
if (local4remote(ulop->local_addr, satoss(ulop->local_addr)) == -1) {
rtpp_log_write(RTPP_LOG_ERR, cf->stable->glog,
"can't find local address for remote address: %s", t);
reply_error(cf, cmd, ECODE_INVLARG_3);
goto err_undo_1;
}
ulop->local_addr = addr2bindaddr(cf, ulop->local_addr, &errmsg);
if (ulop->local_addr == NULL) {
rtpp_log_write(RTPP_LOG_ERR, cf->stable->glog,
"invalid local address: %s", errmsg);
reply_error(cf, cmd, ECODE_INVLARG_4);
goto err_undo_1;
}
t[len] = c;
cp--;
break;
default:
rtpp_log_write(RTPP_LOG_ERR, cf->stable->glog, "unknown command modifier `%c'",
*cp);
break;
}
}
if (ulop->addr != NULL && ulop->port != NULL && strlen(ulop->addr) >= 7) {
pthread_mutex_unlock(&cf->glock);
n = resolve(sstosa(&tia), ulop-> pf, ulop->addr, ulop->port, AI_NUMERICHOST);
pthread_mutex_lock(&cf->glock);
if (n == 0) {
if (!ishostnull(sstosa(&tia))) {
for (i = 0; i < 2; i++) {
ulop->ia[i] = malloc(SS_LEN(&tia));
if (ulop->ia[i] == NULL) {
reply_error(cf, cmd, ECODE_NOMEM_3);
goto err_undo_1;
}
memcpy(ulop->ia[i], &tia, SS_LEN(&tia));
}
/* Set port for RTCP, will work both for IPv4 and IPv6 */
n = ntohs(satosin(ulop->ia[1])->sin_port);
satosin(ulop->ia[1])->sin_port = htons(n + 1);
}
} else {
rtpp_log_write(RTPP_LOG_ERR, cf->stable->glog, "getaddrinfo: %s",
gai_strerror(n));
}
}
return (ulop);
err_undo_1:
rtpp_command_ul_opts_free(ulop);
err_undo_0:
return (NULL);
}
static void
process_rtp(struct cfg *cf, double dtime, int alarm_tick)
{
int readyfd, skipfd, ridx;
struct rtpp_session *sp;
struct rtp_packet *packet;
/* Relay RTP/RTCP */
skipfd = 0;
pthread_mutex_lock(&cf->sessinfo.lock);
for (readyfd = 0; readyfd < cf->sessinfo.nsessions; readyfd++) {
sp = cf->sessinfo.sessions[readyfd];
if (alarm_tick != 0 && sp != NULL && sp->rtcp != NULL &&
sp->sidx[0] == readyfd) {
if (get_ttl(sp) == 0) {
rtpp_log_write(RTPP_LOG_INFO, sp->log, "session timeout");
rtpp_notify_schedule(cf, sp);
remove_session(cf, sp);
} else {
if (sp->ttl[0] != 0)
sp->ttl[0]--;
if (sp->ttl[1] != 0)
sp->ttl[1]--;
}
}
if (cf->sessinfo.pfds[readyfd].fd == -1) {
/* Deleted session, count and move one */
skipfd++;
continue;
}
/* Find index of the call leg within a session */
for (ridx = 0; ridx < 2; ridx++)
if (cf->sessinfo.pfds[readyfd].fd == sp->fds[ridx])
break;
/*
* Can't happen.
*/
assert(ridx != 2);
/* Compact pfds[] and sessions[] by eliminating removed sessions */
if (skipfd > 0) {
cf->sessinfo.pfds[readyfd - skipfd] = cf->sessinfo.pfds[readyfd];
cf->sessinfo.sessions[readyfd - skipfd] = cf->sessinfo.sessions[readyfd];
sp->sidx[ridx] = readyfd - skipfd;
}
if (sp->complete != 0) {
if ((cf->sessinfo.pfds[readyfd].revents & POLLIN) != 0)
rxmit_packets(cf, sp, ridx, dtime);
if (sp->resizers[ridx].output_nsamples > 0) {
while ((packet = rtp_resizer_get(&sp->resizers[ridx], dtime)) != NULL) {
send_packet(cf, sp, ridx, packet);
rtp_packet_free(packet);
}
}
}
}
/* Trim any deleted sessions at the end */
cf->sessinfo.nsessions -= skipfd;
pthread_mutex_unlock(&cf->sessinfo.lock);
}
void
remove_session(struct cfg *cf, struct rtpp_session *sp)
{
int i;
double session_time;
session_time = getdtime() - sp->init_ts;
/* Make sure structure is properly locked */
assert(pthread_mutex_islocked(&cf->glock) == 1);
assert(pthread_mutex_islocked(&cf->sessinfo.lock) == 1);
rtpp_log_write(RTPP_LOG_INFO, sp->log, "RTP stats: %lu in from callee, %lu "
"in from caller, %lu relayed, %lu dropped", sp->pcount[0], sp->pcount[1],
sp->pcount[2], sp->pcount[3]);
if (sp->pcount[0] == 0 && sp->pcount[1] == 0) {
CALL_METHOD(cf->stable->rtpp_stats, updatebyname, "nsess_nortp", 1);
} else if (sp->pcount[0] == 0 || sp->pcount[1] == 0) {
CALL_METHOD(cf->stable->rtpp_stats, updatebyname, "nsess_owrtp", 1);
}
rtpp_log_write(RTPP_LOG_INFO, sp->log, "RTCP stats: %lu in from callee, %lu "
"in from caller, %lu relayed, %lu dropped", sp->rtcp->pcount[0],
sp->rtcp->pcount[1], sp->rtcp->pcount[2], sp->rtcp->pcount[3]);
if (sp->rtcp->pcount[0] == 0 && sp->rtcp->pcount[1] == 0) {
CALL_METHOD(cf->stable->rtpp_stats, updatebyname, "nsess_nortcp", 1);
} else if (sp->rtcp->pcount[0] == 0 || sp->rtcp->pcount[1] == 0) {
CALL_METHOD(cf->stable->rtpp_stats, updatebyname, "nsess_owrtcp", 1);
}
rtpp_log_write(RTPP_LOG_INFO, sp->log, "session on ports %d/%d is cleaned up",
sp->ports[0], sp->ports[1]);
for (i = 0; i < 2; i++) {
if (sp->addr[i] != NULL)
free(sp->addr[i]);
if (sp->prev_addr[i] != NULL)
free(sp->prev_addr[i]);
if (sp->rtcp->addr[i] != NULL)
free(sp->rtcp->addr[i]);
if (sp->rtcp->prev_addr[i] != NULL)
free(sp->rtcp->prev_addr[i]);
if (sp->fds[i] != -1) {
shutdown(sp->fds[i], SHUT_RDWR);
close(sp->fds[i]);
assert(cf->sessinfo.sessions[sp->sidx[i]] == sp);
cf->sessinfo.sessions[sp->sidx[i]] = NULL;
assert(cf->sessinfo.pfds_rtp[sp->sidx[i]].fd == sp->fds[i]);
cf->sessinfo.pfds_rtp[sp->sidx[i]].fd = -1;
cf->sessinfo.pfds_rtp[sp->sidx[i]].events = 0;
}
if (sp->rtcp->fds[i] != -1) {
shutdown(sp->rtcp->fds[i], SHUT_RDWR);
close(sp->rtcp->fds[i]);
assert(cf->sessinfo.pfds_rtcp[sp->rtcp->sidx[i]].fd == sp->rtcp->fds[i]);
cf->sessinfo.pfds_rtcp[sp->rtcp->sidx[i]].fd = -1;
cf->sessinfo.pfds_rtcp[sp->rtcp->sidx[i]].events = 0;
}
if (sp->rrcs[i] != NULL) {
rclose(sp, sp->rrcs[i], 1);
if (sp->record_single_file != 0) {
sp->rtcp->rrcs[i] = NULL;
sp->rrcs[NOT(i)] = NULL;
sp->rtcp->rrcs[NOT(i)] = NULL;
}
}
if (sp->rtcp->rrcs[i] != NULL)
rclose(sp, sp->rtcp->rrcs[i], 1);
if (sp->rtps[i] != NULL) {
cf->rtp_servers[sp->sridx] = NULL;
rtp_server_free(sp->rtps[i]);
}
if (sp->codecs[i] != NULL)
free(sp->codecs[i]);
if (sp->rtcp->codecs[i] != NULL)
free(sp->rtcp->codecs[i]);
if (sp->resizers[i] != NULL)
rtp_resizer_free(sp->resizers[i]);
}
if (sp->timeout_data.notify_tag != NULL)
free(sp->timeout_data.notify_tag);
if (sp->hte != NULL)
CALL_METHOD(cf->stable->sessions_ht, remove, sp->call_id, sp->hte);
if (sp->call_id != NULL)
free(sp->call_id);
if (sp->tag != NULL)
free(sp->tag);
if (sp->tag_nomedianum != NULL)
free(sp->tag_nomedianum);
rtpp_log_close(sp->log);
free(sp->rtcp);
free(sp);
cf->sessions_active--;
CALL_METHOD(cf->stable->rtpp_stats, updatebyname, "nsess_destroyed", 1);
CALL_METHOD(cf->stable->rtpp_stats, updatebyname_d, "total_duration",
session_time);
}
int
handle_command(struct cfg *cf, struct rtpp_command *cmd)
{
int i, verbose, rval;
int playcount;
char *cp, *tcp;
char *pname, *codecs, *recording_name;
struct rtpp_session *spa;
int record_single_file;
struct ul_opts *ulop;
struct d_opts dopt;
spa = NULL;
recording_name = NULL;
codecs = NULL;
/* Step II: parse parameters that are specific to a particular op and run simple ops */
switch (cmd->cca.op) {
case VER_FEATURE:
handle_ver_feature(cf, cmd);
return 0;
case GET_VER:
/* This returns base version. */
reply_number(cf, cmd, CPROTOVER);
return 0;
case DELETE_ALL:
/* Delete all active sessions */
rtpp_log_write(RTPP_LOG_INFO, cf->stable->glog, "deleting all active sessions");
pthread_mutex_lock(&cf->sessinfo.lock);
for (i = 0; i < cf->sessinfo.nsessions; i++) {
spa = cf->sessinfo.sessions[i];
if (spa == NULL || spa->sidx[0] != i)
continue;
remove_session(cf, spa);
}
pthread_mutex_unlock(&cf->sessinfo.lock);
reply_ok(cf, cmd);
return 0;
case INFO:
handle_info(cf, cmd, &cmd->argv[0][1]);
return 0;
case PLAY:
/*
* P callid pname codecs from_tag to_tag
*
* <codecs> could be either comma-separated list of supported
* payload types or word "session" (without quotes), in which
* case list saved on last session update will be used instead.
*/
playcount = 1;
pname = cmd->argv[2];
codecs = cmd->argv[3];
tcp = &(cmd->argv[0][1]);
if (*tcp != '\0') {
playcount = strtol(tcp, &cp, 10);
if (cp == tcp || *cp != '\0') {
rtpp_log_write(RTPP_LOG_ERR, cf->stable->glog, "command syntax error");
reply_error(cf, cmd, ECODE_PARSE_6);
return 0;
}
}
break;
case COPY:
recording_name = cmd->argv[2];
/* Fallthrough */
case RECORD:
if (cmd->argv[0][1] == 'S' || cmd->argv[0][1] == 's') {
if (cmd->argv[0][2] != '\0') {
rtpp_log_write(RTPP_LOG_ERR, cf->stable->glog, "command syntax error");
reply_error(cf, cmd, ECODE_PARSE_2);
return 0;
}
record_single_file = (cf->stable->record_pcap == 0) ? 0 : 1;
} else {
if (cmd->argv[0][1] != '\0') {
rtpp_log_write(RTPP_LOG_ERR, cf->stable->glog, "command syntax error");
reply_error(cf, cmd, ECODE_PARSE_3);
return 0;
}
record_single_file = 0;
}
break;
case DELETE:
/* D[w] call_id from_tag [to_tag] */
dopt.weak = 0;
for (cp = cmd->argv[0] + 1; *cp != '\0'; cp++) {
switch (*cp) {
case 'w':
case 'W':
dopt.weak = 1;
break;
default:
rtpp_log_write(RTPP_LOG_ERR, cf->stable->glog,
"DELETE: unknown command modifier `%c'", *cp);
reply_error(cf, cmd, ECODE_PARSE_4);
return 0;
}
}
break;
case UPDATE:
case LOOKUP:
ulop = rtpp_command_ul_opts_parse(cf, cmd);
if (ulop == NULL) {
return 0;
}
break;
case GET_STATS:
verbose = 0;
for (cp = cmd->argv[0] + 1; *cp != '\0'; cp++) {
switch (*cp) {
case 'v':
case 'V':
verbose = 1;
break;
default:
rtpp_log_write(RTPP_LOG_ERR, cf->stable->glog,
"STATS: unknown command modifier `%c'", *cp);
reply_error(cf, cmd, ECODE_PARSE_5);
return 0;
}
}
i = handle_get_stats(cf, cmd, verbose);
if (i != 0) {
reply_error(cf, cmd, i);
}
return 0;
default:
break;
}
/*
* Record and delete need special handling since they apply to all
* streams in the session.
*/
switch (cmd->cca.op) {
case DELETE:
i = handle_delete(cf, &cmd->cca, dopt.weak);
break;
case RECORD:
i = handle_record(cf, &cmd->cca, record_single_file);
break;
default:
i = find_stream(cf, cmd->cca.call_id, cmd->cca.from_tag, cmd->cca.to_tag, &spa);
if (i != -1 && cmd->cca.op != UPDATE)
i = NOT(i);
break;
}
if (i == -1 && cmd->cca.op != UPDATE) {
rtpp_log_write(RTPP_LOG_INFO, cf->stable->glog,
"%s request failed: session %s, tags %s/%s not found", cmd->cca.rname,
cmd->cca.call_id, cmd->cca.from_tag, cmd->cca.to_tag != NULL ? cmd->cca.to_tag : "NONE");
if (cmd->cca.op == LOOKUP) {
rtpp_command_ul_opts_free(ulop);
ul_reply_port(cf, cmd, NULL);
return 0;
}
reply_error(cf, cmd, ECODE_SESUNKN);
return 0;
}
switch (cmd->cca.op) {
case DELETE:
case RECORD:
reply_ok(cf, cmd);
break;
case NOPLAY:
handle_noplay(cf, spa, i, cmd);
reply_ok(cf, cmd);
break;
case PLAY:
handle_noplay(cf, spa, i, cmd);
if (strcmp(codecs, "session") == 0) {
if (spa->codecs[i] == NULL) {
reply_error(cf, cmd, ECODE_INVLARG_5);
return 0;
}
codecs = spa->codecs[i];
}
if (playcount != 0 && handle_play(cf, spa, i, codecs, pname, playcount, cmd) != 0) {
reply_error(cf, cmd, ECODE_PLRFAIL);
return 0;
}
reply_ok(cf, cmd);
break;
case COPY:
if (handle_copy(cf, spa, i, recording_name, record_single_file) != 0) {
reply_error(cf, cmd, ECODE_CPYFAIL);
return 0;
}
reply_ok(cf, cmd);
break;
case QUERY:
rval = handle_query(cf, cmd, spa, i);
if (rval != 0) {
reply_error(cf, cmd, rval);
}
break;
case LOOKUP:
case UPDATE:
rtpp_command_ul_handle(cf, cmd, ulop, spa, i);
break;
default:
/* Programmatic error, should not happen */
abort();
}
return 0;
}
void *
ropen(struct cfg *cf, struct rtpp_session *sp, char *rname, int orig)
{
struct rtpp_record_channel *rrc;
const char *sdir, *suffix1, *suffix2;
char *cp, *tmp;
int n, port, rval, remote;
struct sockaddr_storage raddr;
pcap_hdr_t pcap_hdr;
remote = (rname != NULL && strncmp("udp:", rname, 4) == 0) ? 1 : 0;
rrc = malloc(sizeof(*rrc));
if (rrc == NULL) {
rtpp_log_ewrite(RTPP_LOG_ERR, sp->log, "can't allocate memory");
return NULL;
}
memset(rrc, 0, sizeof(*rrc));
if (remote) {
tmp = strdup(rname + 4);
if (tmp == NULL) {
rtpp_log_ewrite(RTPP_LOG_ERR, sp->log, "can't allocate memory");
return NULL;
}
rrc->mode = MODE_REMOTE_RTP;
rrc->needspool = 0;
cp = strrchr(tmp, ':');
if (cp == NULL) {
rtpp_log_write(RTPP_LOG_ERR, sp->log, "remote recording target specification should include port number");
free(rrc);
free(tmp);
return NULL;
}
*cp = '\0';
cp++;
if (sp->rtcp == NULL) {
/* Handle RTCP (increase target port by 1) */
port = atoi(cp);
if (port <= 0 || port > ((sp->rtcp != NULL) ? 65534 : 65535)) {
rtpp_log_write(RTPP_LOG_ERR, sp->log, "invalid port in the remote recording target specification");
free(rrc);
free(tmp);
return NULL;
}
sprintf(cp, "%d", port + 1);
}
n = resolve(sstosa(&raddr), AF_INET, tmp, cp, AI_PASSIVE);
if (n != 0) {
rtpp_log_write(RTPP_LOG_ERR, sp->log, "ropen: getaddrinfo: %s", gai_strerror(n));
free(rrc);
free(tmp);
return NULL;
}
rrc->fd = socket(AF_INET, SOCK_DGRAM, 0);
if (rrc->fd == -1) {
rtpp_log_ewrite(RTPP_LOG_ERR, sp->log, "ropen: can't create socket");
free(rrc);
free(tmp);
return NULL;
}
if (connect(rrc->fd, sstosa(&raddr), SA_LEN(sstosa(&raddr))) == -1) {
rtpp_log_ewrite(RTPP_LOG_ERR, sp->log, "ropen: can't connect socket");
close(rrc->fd);
free(rrc);
free(tmp);
return NULL;
}
free(tmp);
return (void *)(rrc);
}
if (cf->stable.rdir == NULL) {
rtpp_log_write(RTPP_LOG_ERR, sp->log, "directory for saving local recordings is not configured");
free(rrc);
return NULL;
}
if (cf->stable.record_pcap != 0) {
rrc->mode = MODE_LOCAL_PCAP;
} else {
rrc->mode = MODE_LOCAL_PKT;
}
if (sp->record_single_file != 0) {
suffix1 = suffix2 = "";
} else {
suffix1 = (orig != 0) ? ".o" : ".a";
suffix2 = (sp->rtcp != NULL) ? ".rtp" : ".rtcp";
}
if (cf->stable.sdir == NULL) {
sdir = cf->stable.rdir;
rrc->needspool = 0;
} else {
sdir = cf->stable.sdir;
rrc->needspool = 1;
if (rname == NULL) {
sprintf(rrc->rpath, "%s/%s=%s%s%s", cf->stable.rdir, sp->call_id, sp->tag_nomedianum,
suffix1, suffix2);
} else {
sprintf(rrc->rpath, "%s/%s%s", cf->stable.rdir, rname, suffix2);
}
}
if (rname == NULL) {
sprintf(rrc->spath, "%s/%s=%s%s%s", sdir, sp->call_id, sp->tag_nomedianum,
suffix1, suffix2);
} else {
sprintf(rrc->spath, "%s/%s%s", sdir, rname, suffix2);
}
rrc->fd = open(rrc->spath, O_WRONLY | O_CREAT | O_TRUNC, DEFFILEMODE);
if (rrc->fd == -1) {
rtpp_log_ewrite(RTPP_LOG_ERR, sp->log, "can't open file %s for writing",
rrc->spath);
free(rrc);
return NULL;
}
if (rrc->mode == MODE_LOCAL_PCAP) {
pcap_hdr.magic_number = PCAP_MAGIC;
pcap_hdr.version_major = PCAP_VER_MAJR;
pcap_hdr.version_minor = PCAP_VER_MINR;
pcap_hdr.thiszone = 0;
pcap_hdr.sigfigs = 0;
pcap_hdr.snaplen = 65535;
pcap_hdr.network = PCAP_FORMAT;
rval = write(rrc->fd, &pcap_hdr, sizeof(pcap_hdr));
if (rval == -1) {
close(rrc->fd);
rtpp_log_ewrite(RTPP_LOG_ERR, sp->log, "%s: error writing header",
rrc->spath);
free(rrc);
return NULL;
}
if (rval < sizeof(pcap_hdr)) {
close(rrc->fd);
rtpp_log_write(RTPP_LOG_ERR, sp->log, "%s: short write writing header",
rrc->spath);
free(rrc);
return NULL;
}
}
return (void *)(rrc);
}
int
get_command(struct cfg_stable *cfs, int controlfd, struct rtpp_command *cmd)
{
char **ap;
char *cp;
int len, i;
if (cfs->umode == 0) {
for (;;) {
len = read(controlfd, cmd->buf, sizeof(cmd->buf) - 1);
if (len != -1 || (errno != EAGAIN && errno != EINTR))
break;
sched_yield();
}
} else {
cmd->rlen = sizeof(cmd->raddr);
len = recvfrom(controlfd, cmd->buf, sizeof(cmd->buf) - 1, 0,
sstosa(&cmd->raddr), &cmd->rlen);
}
if (len == -1) {
if (errno != EAGAIN && errno != EINTR)
rtpp_log_ewrite(RTPP_LOG_ERR, cfs->glog, "can't read from control socket");
return (-1);
}
cmd->buf[len] = '\0';
rtpp_log_write(RTPP_LOG_DBUG, cfs->glog, "received command \"%s\"", cmd->buf);
cp = cmd->buf;
cmd->argc = 0;
memset(cmd->argv, 0, sizeof(cmd->argv));
for (ap = cmd->argv; (*ap = rtpp_strsep(&cp, "\r\n\t ")) != NULL;)
if (**ap != '\0') {
cmd->argc++;
if (++ap >= &cmd->argv[10])
break;
}
cmd->cookie = NULL;
if (cmd->argc < 1 || (cfs->umode != 0 && cmd->argc < 2)) {
rtpp_log_write(RTPP_LOG_ERR, cfs->glog, "command syntax error");
reply_error(cfs, controlfd, cmd, 0);
return (0);
}
/* Stream communication mode doesn't use cookie */
if (cfs->umode != 0) {
cmd->cookie = cmd->argv[0];
for (i = 1; i < cmd->argc; i++)
cmd->argv[i - 1] = cmd->argv[i];
cmd->argc--;
cmd->argv[cmd->argc] = NULL;
} else {
cmd->cookie = NULL;
}
return (cmd->argc);
}
struct rtpp_command *
get_command(struct cfg *cf, int controlfd, int *rval, double dtime,
struct rtpp_command_stats *csp, int umode,
struct rtpp_cmd_rcache_obj *rcache_obj)
{
char **ap;
char *cp;
int len, i;
struct rtpp_command *cmd;
cmd = malloc(sizeof(struct rtpp_command));
if (cmd == NULL) {
*rval = ENOMEM;
return (NULL);
}
memset(cmd, 0, sizeof(struct rtpp_command));
cmd->controlfd = controlfd;
cmd->dtime = dtime;
cmd->csp = csp;
cmd->umode = umode;
if (umode == 0) {
for (;;) {
len = read(controlfd, cmd->buf, sizeof(cmd->buf) - 1);
if (len != -1 || (errno != EAGAIN && errno != EINTR))
break;
}
} else {
cmd->rlen = sizeof(cmd->raddr);
len = recvfrom(controlfd, cmd->buf, sizeof(cmd->buf) - 1, 0,
sstosa(&cmd->raddr), &cmd->rlen);
}
if (len == -1) {
if (errno != EAGAIN && errno != EINTR)
rtpp_log_ewrite(RTPP_LOG_ERR, cf->stable->glog, "can't read from control socket");
free(cmd);
*rval = -1;
return (NULL);
}
cmd->buf[len] = '\0';
rtpp_log_write(RTPP_LOG_DBUG, cf->stable->glog, "received command \"%s\"", cmd->buf);
csp->ncmds_rcvd.cnt++;
cp = cmd->buf;
for (ap = cmd->argv; (*ap = rtpp_strsep(&cp, "\r\n\t ")) != NULL;) {
if (**ap != '\0') {
cmd->argc++;
if (++ap >= &cmd->argv[RTPC_MAX_ARGC])
break;
}
}
if (cmd->argc < 1 || (umode != 0 && cmd->argc < 2)) {
rtpp_log_write(RTPP_LOG_ERR, cf->stable->glog, "command syntax error");
reply_error(cf, cmd, ECODE_PARSE_1);
*rval = 0;
free(cmd);
return (NULL);
}
/* Stream communication mode doesn't use cookie */
if (umode != 0) {
cmd->cookie = cmd->argv[0];
if (CALL_METHOD(rcache_obj, lookup, cmd->cookie, cmd->buf_r, sizeof(cmd->buf_r)) == 1) {
len = strlen(cmd->buf_r);
rtpp_anetio_sendto(cf->stable->rtpp_netio_cf, cmd->controlfd, cmd->buf_r, len, 0,
sstosa(&cmd->raddr), cmd->rlen);
csp->ncmds_rcvd.cnt--;
csp->ncmds_rcvd_ndups.cnt++;
*rval = 0;
free(cmd);
return (NULL);
}
cmd->rcache_obj = rcache_obj;
for (i = 1; i < cmd->argc; i++)
cmd->argv[i - 1] = cmd->argv[i];
cmd->argc--;
cmd->argv[cmd->argc] = NULL;
}
/* Step I: parse parameters that are common to all ops */
if (rtpp_command_pre_parse(cf, cmd) != 0) {
/* Error reply is handled by the rtpp_command_pre_parse() */
*rval = 0;
free(cmd);
return (NULL);
}
return (cmd);
}
void
remove_session(struct cfg *cf, struct rtpp_session *sp)
{
int i;
rtpp_log_write(RTPP_LOG_INFO, sp->log, "RTP stats: %lu in from callee, %lu "
"in from caller, %lu relayed, %lu dropped", sp->pcount[0], sp->pcount[1],
sp->pcount[2], sp->pcount[3]);
rtpp_log_write(RTPP_LOG_INFO, sp->log, "RTCP stats: %lu in from callee, %lu "
"in from caller, %lu relayed, %lu dropped", sp->rtcp->pcount[0],
sp->rtcp->pcount[1], sp->rtcp->pcount[2], sp->rtcp->pcount[3]);
rtpp_log_write(RTPP_LOG_INFO, sp->log, "session on ports %d/%d is cleaned up",
sp->ports[0], sp->ports[1]);
for (i = 0; i < 2; i++)
{
if (sp->addr[i] != NULL)
free(sp->addr[i]);
if (sp->prev_addr[i] != NULL)
free(sp->prev_addr[i]);
if (sp->rtcp->addr[i] != NULL)
free(sp->rtcp->addr[i]);
if (sp->rtcp->prev_addr[i] != NULL)
free(sp->rtcp->prev_addr[i]);
//if(sp->stream[i]->bio != NULL) {
// BIO_free(sp->stream[i]->bio);
//}
if (sp->stream[i] != NULL)
{
rtpp_dtls_free_stream(sp->stream[i]);
}
if (sp->rtcp->stream[i] != NULL)
{
rtpp_dtls_free_stream(sp->rtcp->stream[i]);
}
if (sp->fds[i] != -1)
{
close(sp->fds[i]);
assert(cf->sessions[sp->sidx[i]] == sp);
cf->sessions[sp->sidx[i]] = NULL;
assert(cf->pfds[sp->sidx[i]].fd == sp->fds[i]);
cf->pfds[sp->sidx[i]].fd = -1;
cf->pfds[sp->sidx[i]].events = 0;
}
if (sp->rtcp->fds[i] != -1)
{
close(sp->rtcp->fds[i]);
assert(cf->sessions[sp->rtcp->sidx[i]] == sp->rtcp);
cf->sessions[sp->rtcp->sidx[i]] = NULL;
assert(cf->pfds[sp->rtcp->sidx[i]].fd == sp->rtcp->fds[i]);
cf->pfds[sp->rtcp->sidx[i]].fd = -1;
cf->pfds[sp->rtcp->sidx[i]].events = 0;
}
if (sp->rrcs[i] != NULL)
rclose(sp, sp->rrcs[i], 1);
if (sp->rtcp->rrcs[i] != NULL)
rclose(sp, sp->rtcp->rrcs[i], 1);
if (sp->rtps[i] != NULL)
{
cf->rtp_servers[sp->sridx] = NULL;
rtp_server_free(sp->rtps[i]);
}
if (sp->codecs[i] != NULL)
free(sp->codecs[i]);
if (sp->rtcp->codecs[i] != NULL)
free(sp->rtcp->codecs[i]);
if (sp->bridgeBindAddr[i] != NULL) // VLAN Support (FRN4811)
free(sp->bridgeBindAddr[i]);
if (sp->ice_u[i] != NULL)
{
if (sp->ice_u[i]->local_user_name != NULL)
free(sp->ice_u[i]->local_user_name);
if (sp->ice_u[i]->local_password != NULL)
free(sp->ice_u[i]->local_password);
if (sp->ice_u[i]->remote_user_name != NULL)
free(sp->ice_u[i]->remote_user_name);
if (sp->ice_u[i]->remote_password != NULL)
free(sp->ice_u[i]->remote_password);
free(sp->ice_u[i]);
}
if (sp->ice_candidate_list[i] != NULL) // ICE remote candidate support
delete_ice_candidate(sp, i);
if (sp->rtcp->ice_candidate_list[i] != NULL)
delete_ice_candidate(sp->rtcp, i);
if (sp->transcode)
rtp_transcoder_free(&sp->trans[i],cf);
if (sp->secure)
{
rtpp_srtp_free_context(&sp->srtp[i]);
rtpp_srtp_free_context(&sp->rtcp->srtp[i]);
}
rtp_resizer_free(&sp->resizers[i]);
}// for
rtpp_stun_agent_remove(sp); //Remove stun agent Context.
remove_session_frm_active_rsz_lst(sp);
rtpp_log_write(RTPP_LOG_INFO, sp->log, "timed resizer lists cleaned up");
if (sp->timeout_data.notify_tag != NULL)
free(sp->timeout_data.notify_tag);
hash_table_remove(cf, sp);
if (sp->call_id != NULL)
free(sp->call_id);
if (sp->tag != NULL)
free(sp->tag);
rtpp_log_close(sp->log);
free(sp->rtcp);
free(sp);
cf->sessions_active--;
}
/* Call Backs */
int dtls_verify_cb(int ok, X509_STORE_CTX* store) {
SSL *ssl = (SSL*)X509_STORE_CTX_get_ex_data(store, SSL_get_ex_data_X509_STORE_CTX_idx());
rtpp_stream *st = (rtpp_stream*)SSL_get_app_data(ssl);
int depth = X509_STORE_CTX_get_error_depth(store);
X509* cert = X509_STORE_CTX_get_current_cert(store);
int override = 1;
char buf[512];
int err = X509_STORE_CTX_get_error(store);
bzero(buf, 512);
X509_NAME_oneline(X509_get_subject_name(cert),buf,sizeof(buf));
rtpp_log_write(RTPP_LOG_INFO, glog, "depth[%d] subject = %s\n", depth, buf);
bzero(buf, 512);
X509_NAME_oneline(X509_get_issuer_name(cert),buf,sizeof(buf));
rtpp_log_write(RTPP_LOG_INFO, glog, "depth[%d] issuer = %s\n", depth, buf);
rtpp_log_write(RTPP_LOG_INFO, glog, "verify error:ok=%d num=%d:%s\n", ok,err, X509_verify_cert_error_string(err));
rtpp_log_write(RTPP_LOG_INFO, glog, "depth:%d, error code is %d\n", depth,store->error);
switch (err)
{
case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
rtpp_log_write(RTPP_LOG_INFO, glog, "issuer= %s\n",buf);
break;
case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
case X509_V_ERR_CERT_NOT_YET_VALID:
rtpp_log_write(RTPP_LOG_INFO, glog, "notBefore\n");
break;
case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
case X509_V_ERR_CERT_HAS_EXPIRED:
rtpp_log_write(RTPP_LOG_INFO, glog, "notAfter\n");
break;
case X509_V_ERR_CERT_SIGNATURE_FAILURE:
case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
rtpp_log_write(RTPP_LOG_INFO, glog, "unable to decrypt cert signature\n");
break;
case X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION:
rtpp_log_write(RTPP_LOG_INFO, glog, "Critical Extension\n");
break;
case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
rtpp_log_write(RTPP_LOG_INFO, glog, "unable to decode issuer public key\n");
break;
case X509_V_ERR_OUT_OF_MEM:
rtpp_log_write(RTPP_LOG_ERR, glog, "Out of memory \n");
break;
case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
if (st->remote_fp_algorithm && st->remote_fp_value)
{
ok = 1;
rtpp_log_write(RTPP_LOG_INFO, glog,"{%d}fingerprint verification st:%p fd:%d ssl:%p\n",depth, st, st->fd, ssl);
if(!dtls_verify_digest(st,cert))
{
//override = 0;/* should be Zero*/
ok = 0;
}
}
rtpp_log_write(RTPP_LOG_INFO, glog, "Self signed certificate issue\n");
break;
case X509_V_ERR_CERT_REVOKED:
rtpp_log_write(RTPP_LOG_INFO, glog, "certitifcate revoked\n");
break;
case X509_V_ERR_INVALID_CA:
rtpp_log_write(RTPP_LOG_INFO, glog, "invalid CA\n");
break;
case X509_V_ERR_PATH_LENGTH_EXCEEDED:
rtpp_log_write(RTPP_LOG_INFO, glog, "path length exceeded\n");
break;
case X509_V_ERR_INVALID_PURPOSE:
rtpp_log_write(RTPP_LOG_INFO, glog, "invalid purpose\n");
break;
case X509_V_ERR_CERT_UNTRUSTED:
case X509_V_ERR_CERT_REJECTED:
rtpp_log_write(RTPP_LOG_INFO, glog, "certificate untrusted/rejected\n");
break;
default:
rtpp_log_write(RTPP_LOG_INFO, glog, "default: error code is %d (check x509_vfy.h)\n", store->error);
break;
}
if (!ok)
{
if (override)
{
rtpp_log_write(RTPP_LOG_INFO, glog, "something wrong with the cert[%d]!!! error code:%d (x509_vfy.h) Ignoring for Now\n",depth, store->error);
ok=1;
}
else
rtpp_log_write(RTPP_LOG_INFO, glog, "verify error:num=%d:%s depth:%d\n", err, X509_verify_cert_error_string(err),depth);
}
struct rtpp_command *
rtpp_command_stream_get(struct cfg *cf, struct rtpp_cmd_connection *rcs,
int *rval, double dtime, struct rtpp_command_stats *csp)
{
char **ap;
char *cp, *cp1;
int len;
struct rtpp_command *cmd;
if (rcs->inbuf_epos == rcs->inbuf_ppos) {
*rval = EAGAIN;
return (NULL);
}
cp = &(rcs->inbuf[rcs->inbuf_ppos]);
len = rcs->inbuf_epos - rcs->inbuf_ppos;
cp1 = memchr(cp, '\n', len);
if (cp1 == NULL) {
*rval = EAGAIN;
return (NULL);
}
cmd = rtpp_zmalloc(sizeof(struct rtpp_command));
if (cmd == NULL) {
*rval = ENOMEM;
return (NULL);
}
cmd->controlfd = rcs->controlfd_out;
cmd->dtime = dtime;
cmd->csp = csp;
cmd->umode = 0;
if (rcs->rlen > 0) {
cmd->rlen = rcs->rlen;
memcpy(&cmd->raddr, &rcs->raddr, rcs->rlen);
}
len = cp1 - cp;
memcpy(cmd->buf, cp, len);
cmd->buf[len] = '\0';
rcs->inbuf_ppos += len + 1;
rtpp_log_write(RTPP_LOG_DBUG, cf->stable->glog, "received command \"%s\"", cmd->buf);
csp->ncmds_rcvd.cnt++;
cp = cmd->buf;
for (ap = cmd->argv; (*ap = rtpp_strsep(&cp, "\r\n\t ")) != NULL;) {
if (**ap != '\0') {
cmd->argc++;
if (++ap >= &cmd->argv[RTPC_MAX_ARGC])
break;
}
}
if (cmd->argc < 1) {
rtpp_log_write(RTPP_LOG_ERR, cf->stable->glog, "command syntax error");
reply_error(cf, cmd, ECODE_PARSE_1);
*rval = EINVAL;
free(cmd);
return (NULL);
}
/* Step I: parse parameters that are common to all ops */
if (rtpp_command_pre_parse(cf, cmd) != 0) {
/* Error reply is handled by the rtpp_command_pre_parse() */
*rval = 0;
free(cmd);
return (NULL);
}
return (cmd);
}
/**
* rtpp_parse_bridge_modifier - Handles the bridge modifier "B/b" in UPDATE and LOOKUP commands
* Argument format: ip4/6:netId-ipAddr
*
* @param[in] cf - Config
* @param[in] arg - Bridge modifier argument (from the command)
*
* @param[out] isIpV6 - 1 if IPV6
* @param[out] netId - Network Id (if name)
* @param[out] ipAddr - IP address
*
* @return 0 (success), -1 (failure)
*
* Notes: Added for FRN4811
*/
int rtpp_parse_bridge_modifier(struct cfg *cf, char *arg, int *isIpV6, char *netId, char *ipAddr)
{
if (arg == NULL)
{
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "Bridge modifier argument is NULL");
return -1;
}
rtpp_log_write(RTPP_LOG_DBUG, cf->glog, "Bridge modifier argument = %s", arg);
// Get IP ver (ip4 or ip6)
char *pColon = strchr(arg, ':');
if (pColon == NULL)
{
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "IP addr version not present");
return -1;
}
char ipVer[4];
strncpy(ipVer, arg, 3);
ipVer[3] = '\0';
if (strcasecmp(ipVer, IPV4_TYPE_IN_CMD) == 0)
{
*isIpV6 = 0;
}
else if (strcasecmp(ipVer, IPV6_TYPE_IN_CMD) == 0)
{
*isIpV6 = 1;
}
else
{
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "IP version (%s) invalid", ipVer);
return -1;
}
// Get network id
char *pHyphen = strchr(pColon, '-');
if (pHyphen == NULL)
{
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "Network Id not present");
return -1;
}
// Copy network id
char *netIdStart = pColon + 1; // Exclude :
int len = pHyphen - netIdStart;
if (len <= 0 || len > MAX_NETWORK_ID_LEN)
{
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "Invalid network Id length (%d)", len);
return -1;
}
// Copy network id
strncpy(netId, netIdStart, len);
*(netId+len) = '\0';
// Get IP address
char *ipAddrStart = pHyphen + 1; // Exclude -
len = strlen(ipAddrStart);
if (len <= 0 || len > MAX_IP_ADDR_LEN)
{
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "IP address not present");
return -1;
}
// Copy IP address
strncpy(ipAddr, ipAddrStart, len);
*(ipAddr+len) = '\0';
rtpp_log_write(RTPP_LOG_DBUG, cf->glog, "Ver: %s, NetworkId: %s, IP address: %s", ipVer, netId, ipAddr);
return 0;
}
static void
handle_info(struct cfg *cf, struct rtpp_command *cmd,
const char *opts)
{
#if 0
struct rtpp_session *spa, *spb;
char addrs[4][256];
#endif
int len, i, brief, load;
char buf[1024 * 8];
unsigned long long packets_in, packets_out;
brief = 0;
load = 0;
for (i = 0; opts[i] != '\0'; i++) {
switch (opts[i]) {
case 'b':
case 'B':
brief = 1;
break;
case 'l':
case 'L':
load = 1;
break;
default:
rtpp_log_write(RTPP_LOG_ERR, cf->stable->glog, "command syntax error");
reply_error(cf, cmd, ECODE_PARSE_7);
return;
}
}
packets_in = CALL_METHOD(cf->stable->rtpp_stats, getlvalbyname, "npkts_rcvd");
packets_out = CALL_METHOD(cf->stable->rtpp_stats, getlvalbyname, "npkts_relayed") +
CALL_METHOD(cf->stable->rtpp_stats, getlvalbyname, "npkts_played");
pthread_mutex_lock(&cf->sessinfo.lock);
len = snprintf(buf, sizeof(buf), "sessions created: %llu\nactive sessions: %d\n"
"active streams: %d\npackets received: %llu\npackets transmitted: %llu\n",
cf->sessions_created, cf->sessions_active, cf->sessinfo.nsessions,
packets_in, packets_out);
if (load != 0) {
len += snprintf(buf + len, sizeof(buf) - len, "average load: %f\n",
CALL_METHOD(cf->stable->rtpp_cmd_cf, get_aload));
}
#if 0
XXX this needs work to fix it after rtp/rtcp split
for (i = 0; i < cf->sessinfo.nsessions && brief == 0; i++) {
spa = cf->sessinfo.sessions[i];
if (spa == NULL || spa->sidx[0] != i)
continue;
/* RTCP twin session */
if (spa->rtcp == NULL) {
spb = spa->rtp;
buf[len++] = '\t';
} else {
spb = spa->rtcp;
buf[len++] = '\t';
buf[len++] = 'C';
buf[len++] = ' ';
}
addr2char_r(spb->laddr[1], addrs[0], sizeof(addrs[0]));
if (spb->addr[1] == NULL) {
strcpy(addrs[1], "NONE");
} else {
sprintf(addrs[1], "%s:%d", addr2char(spb->addr[1]),
addr2port(spb->addr[1]));
}
addr2char_r(spb->laddr[0], addrs[2], sizeof(addrs[2]));
if (spb->addr[0] == NULL) {
strcpy(addrs[3], "NONE");
} else {
sprintf(addrs[3], "%s:%d", addr2char(spb->addr[0]),
addr2port(spb->addr[0]));
}
len += snprintf(buf + len, sizeof(buf) - len,
"%s/%s: caller = %s:%d/%s, callee = %s:%d/%s, "
"stats = %lu/%lu/%lu/%lu, ttl = %d/%d\n",
spb->call_id, spb->tag, addrs[0], spb->ports[1], addrs[1],
addrs[2], spb->ports[0], addrs[3], spa->pcount[0], spa->pcount[1],
spa->pcount[2], spa->pcount[3], spb->ttl[0], spb->ttl[1]);
if (len + 512 > sizeof(buf)) {
rtpc_doreply(cf, buf, len, cmd);
len = 0;
}
}
#endif
pthread_mutex_unlock(&cf->sessinfo.lock);
if (len > 0) {
rtpc_doreply(cf, buf, len, cmd, 0);
}
}
static void
rtpp_proc_async_run(void *arg)
{
struct cfg *cf;
double last_tick_time;
int alarm_tick, i, ndrain, rtp_only;
struct rtpp_proc_async_cf *proc_cf;
long long ncycles_ref;
#ifdef RTPP_DEBUG
int ncycles_ref_pre, last_ctick;
#endif
struct sign_arg *s_a;
struct rtpp_wi *wi, *wis[10];
struct sthread_args *sender;
double tp[4];
struct rtpp_proc_rstats *rstats;
struct rtpp_stats_obj *stats_cf;
cf = (struct cfg *)arg;
proc_cf = cf->stable->rtpp_proc_cf;
stats_cf = cf->stable->rtpp_stats;
rstats = &proc_cf->rstats;
last_tick_time = 0;
wi = rtpp_queue_get_item(proc_cf->time_q, 0);
s_a = (struct sign_arg *)rtpp_wi_sgnl_get_data(wi, NULL);
#ifdef RTPP_DEBUG
last_ctick = s_a->clock_tick;
ncycles_ref_pre = s_a->ncycles_ref;
#endif
rtpp_wi_free(wi);
tp[0] = getdtime();
for (;;) {
i = rtpp_queue_get_items(proc_cf->time_q, wis, 10, 0);
if (i <= 0) {
continue;
}
i -= 1;
s_a = (struct sign_arg *)rtpp_wi_sgnl_get_data(wis[i], NULL);
ndrain = (s_a->ncycles_ref - ncycles_ref) / (cf->stable->target_pfreq / MAX_RTP_RATE);
#ifdef RTPP_DEBUG
last_ctick = s_a->clock_tick;
ncycles_ref_pre = ncycles_ref;
#endif
ncycles_ref = s_a->ncycles_ref;
for(; i > -1; i--) {
rtpp_wi_free(wis[i]);
}
tp[1] = getdtime();
#if RTPP_DEBUG
if (last_ctick % (unsigned int)cf->stable->target_pfreq == 0 || last_ctick < 1000) {
rtpp_log_write(RTPP_LOG_DBUG, cf->stable->glog, "run %lld sptime %f, CSV: %f,%f,%f", \
last_ctick, tp[1], (double)last_ctick / cf->stable->target_pfreq, \
((double)ncycles_ref / cf->stable->target_pfreq) - tp[1], tp[1]);
}
#endif
if (ndrain < 1) {
ndrain = 1;
}
#if RTPP_DEBUG
if (ndrain > 1) {
rtpp_log_write(RTPP_LOG_DBUG, cf->stable->glog, "run %lld " \
"ncycles_ref %lld, ncycles_ref_pre %lld, ndrain %d CSV: %f,%f,%d", \
last_ctick, ncycles_ref, ncycles_ref_pre, ndrain, \
(double)last_ctick / cf->stable->target_pfreq, ndrain);
}
#endif
alarm_tick = 0;
if (last_tick_time == 0 || last_tick_time > tp[1]) {
last_tick_time = tp[1];
} else if (last_tick_time + (double)TIMETICK < tp[1]) {
alarm_tick = 1;
last_tick_time = tp[1];
}
if (alarm_tick || (ncycles_ref % 7) == 0) {
rtp_only = 0;
} else {
rtp_only = 1;
}
pthread_mutex_lock(&cf->sessinfo.lock);
if (cf->sessinfo.nsessions > 0) {
if (rtp_only == 0) {
i = poll(cf->sessinfo.pfds_rtcp, cf->sessinfo.nsessions, 0);
}
i = poll(cf->sessinfo.pfds_rtp, cf->sessinfo.nsessions, 0);
pthread_mutex_unlock(&cf->sessinfo.lock);
if (i < 0 && errno == EINTR) {
rtpp_command_async_wakeup(cf->stable->rtpp_cmd_cf);
tp[0] = getdtime();
continue;
}
} else {
pthread_mutex_unlock(&cf->sessinfo.lock);
}
tp[2] = getdtime();
sender = rtpp_anetio_pick_sender(proc_cf->op);
if (rtp_only == 0) {
pthread_mutex_lock(&cf->glock);
process_rtp(cf, tp[2], alarm_tick, ndrain, sender, rstats);
} else {
process_rtp_only(cf, tp[2], ndrain, sender, rstats);
pthread_mutex_lock(&cf->glock);
}
if (cf->rtp_nsessions > 0) {
process_rtp_servers(cf, tp[2], sender, rstats);
}
pthread_mutex_unlock(&cf->glock);
rtpp_anetio_pump_q(sender);
rtpp_command_async_wakeup(cf->stable->rtpp_cmd_cf);
tp[3] = getdtime();
flush_rstats(stats_cf, rstats);
#if RTPP_DEBUG
recfilter_apply(&proc_cf->sleep_time, tp[1] - tp[0]);
recfilter_apply(&proc_cf->poll_time, tp[2] - tp[1]);
recfilter_apply(&proc_cf->proc_time, tp[3] - tp[2]);
#endif
tp[0] = tp[3];
#if RTPP_DEBUG
if (last_ctick % (unsigned int)cf->stable->target_pfreq == 0 || last_ctick < 1000) {
#if 0
rtpp_log_write(RTPP_LOG_DBUG, cf->stable->glog, "run %lld eptime %f, CSV: %f,%f,%f", \
last_ctick, tp[3], (double)last_ctick / cf->stable->target_pfreq, tp[3] - tp[1], tp[3]);
#endif
rtpp_log_write(RTPP_LOG_DBUG, cf->stable->glog, "run %lld eptime %f sleep_time %f poll_time %f proc_time %f CSV: %f,%f,%f,%f", \
last_ctick, tp[3], proc_cf->sleep_time.lastval, proc_cf->poll_time.lastval, proc_cf->proc_time.lastval, \
(double)last_ctick / cf->stable->target_pfreq, proc_cf->sleep_time.lastval, proc_cf->poll_time.lastval, proc_cf->proc_time.lastval);
}
#endif
}
}
int
handle_command(struct cfg *cf, int controlfd, double dtime)
{
int len, argc, i, j, pidx, asymmetric;
int external, pf, lidx, playcount, weak;
int fds[2], lport, n;
socklen_t rlen;
char buf[1024 * 8];
char *cp, *call_id, *from_tag, *to_tag, *addr, *port, *cookie;
char *pname, *codecs, *recording_name, *t;
struct rtpp_session *spa, *spb;
char **ap, *argv[10];
const char *rname;
struct sockaddr *ia[2], *lia[2];
struct sockaddr_storage raddr;
int requested_nsamples;
enum {DELETE, RECORD, PLAY, NOPLAY, COPY, UPDATE, LOOKUP, QUERY} op;
int max_argc;
char *socket_name_u, *notify_tag;
requested_nsamples = -1;
ia[0] = ia[1] = NULL;
spa = spb = NULL;
lia[0] = lia[1] = cf->bindaddr[0];
lidx = 1;
fds[0] = fds[1] = -1;
recording_name = NULL;
socket_name_u = notify_tag = NULL;
if (cf->umode == 0) {
for (;;) {
len = read(controlfd, buf, sizeof(buf) - 1);
if (len != -1 || (errno != EAGAIN && errno != EINTR))
break;
sched_yield();
}
} else {
rlen = sizeof(raddr);
len = recvfrom(controlfd, buf, sizeof(buf) - 1, 0,
sstosa(&raddr), &rlen);
}
if (len == -1) {
if (errno != EAGAIN && errno != EINTR)
rtpp_log_ewrite(RTPP_LOG_ERR, cf->glog, "can't read from control socket");
return -1;
}
buf[len] = '\0';
rtpp_log_write(RTPP_LOG_DBUG, cf->glog, "received command \"%s\"", buf);
cp = buf;
argc = 0;
memset(argv, 0, sizeof(argv));
for (ap = argv; (*ap = rtpp_strsep(&cp, "\r\n\t ")) != NULL;)
if (**ap != '\0') {
argc++;
if (++ap >= &argv[10])
break;
}
cookie = NULL;
if (argc < 1 || (cf->umode != 0 && argc < 2)) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 0);
return 0;
}
/* Stream communication mode doesn't use cookie */
if (cf->umode != 0) {
cookie = argv[0];
for (i = 1; i < argc; i++)
argv[i - 1] = argv[i];
argc--;
argv[argc] = NULL;
} else {
cookie = NULL;
}
addr = port = NULL;
switch (argv[0][0]) {
case 'u':
case 'U':
/* U[opts] callid remote_ip remote_port from_tag [to_tag] */
op = UPDATE;
rname = "update/create";
break;
case 'l':
case 'L':
op = LOOKUP;
rname = "lookup";
break;
case 'd':
case 'D':
op = DELETE;
rname = "delete";
break;
case 'p':
case 'P':
/*
* P callid pname codecs from_tag to_tag
*
* <codecs> could be either comma-separated list of supported
* payload types or word "session" (without quotes), in which
* case list saved on last session update will be used instead.
*/
op = PLAY;
rname = "play";
playcount = 1;
pname = argv[2];
codecs = argv[3];
break;
case 'r':
case 'R':
op = RECORD;
rname = "record";
break;
case 'c':
case 'C':
op = COPY;
rname = "copy";
break;
case 's':
case 'S':
op = NOPLAY;
rname = "noplay";
break;
case 'v':
case 'V':
if (argv[0][1] == 'F' || argv[0][1] == 'f') {
int i, known;
/*
* Wait for protocol version datestamp and check whether we
* know it.
*/
if (argc != 2 && argc != 3) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 2);
return 0;
}
for (known = i = 0; proto_caps[i].pc_id != NULL; ++i) {
if (!strcmp(argv[1], proto_caps[i].pc_id)) {
known = 1;
break;
}
}
reply_number(cf, controlfd, &raddr, rlen, cookie, known);
return 0;
}
if (argc != 1 && argc != 2) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 2);
return 0;
}
/* This returns base version. */
reply_number(cf, controlfd, &raddr, rlen, cookie, CPROTOVER);
return 0;
case 'i':
case 'I':
if (cookie == NULL)
len = sprintf(buf, "sessions created: %llu\nactive sessions: %d\n"
"active streams: %d\n", cf->sessions_created,
cf->sessions_active, cf->nsessions / 2);
else
len = sprintf(buf, "%s sessions created: %llu\nactive sessions: %d\n"
"active streams: %d\n", cookie, cf->sessions_created,
cf->sessions_active, cf->nsessions / 2);
for (i = 1; i < cf->nsessions; i++) {
char addrs[4][256];
spa = cf->sessions[i];
if (spa == NULL || spa->sidx[0] != i)
continue;
/* RTCP twin session */
if (spa->rtcp == NULL) {
spb = spa->rtp;
buf[len++] = '\t';
} else {
spb = spa->rtcp;
buf[len++] = '\t';
buf[len++] = 'C';
buf[len++] = ' ';
}
addr2char_r(spb->laddr[1], addrs[0], sizeof(addrs[0]));
if (spb->addr[1] == NULL) {
strcpy(addrs[1], "NONE");
} else {
sprintf(addrs[1], "%s:%d", addr2char(spb->addr[1]),
addr2port(spb->addr[1]));
}
addr2char_r(spb->laddr[0], addrs[2], sizeof(addrs[2]));
if (spb->addr[0] == NULL) {
strcpy(addrs[3], "NONE");
} else {
sprintf(addrs[3], "%s:%d", addr2char(spb->addr[0]),
addr2port(spb->addr[0]));
}
len += sprintf(buf + len,
"%s/%s: caller = %s:%d/%s, callee = %s:%d/%s, "
"stats = %lu/%lu/%lu/%lu, ttl = %d/%d\n",
spb->call_id, spb->tag, addrs[0], spb->ports[1], addrs[1],
addrs[2], spb->ports[0], addrs[3], spa->pcount[0], spa->pcount[1],
spa->pcount[2], spa->pcount[3], spb->ttl[0], spb->ttl[1]);
if (len + 512 > sizeof(buf)) {
doreply(cf, controlfd, buf, len, &raddr, rlen);
len = 0;
}
}
if (len > 0)
doreply(cf, controlfd, buf, len, &raddr, rlen);;
return 0;
break;
case 'q':
case 'Q':
op = QUERY;
rname = "query";
break;
case 'x':
case 'X':
/* Delete all active sessions */
rtpp_log_write(RTPP_LOG_INFO, cf->glog, "deleting all active sessions");
for (i = 1; i < cf->nsessions; i++) {
spa = cf->sessions[i];
if (spa == NULL || spa->sidx[0] != i)
continue;
/* Skip RTCP twin session */
if (spa->rtcp != NULL) {
remove_session(cf, spa);
}
}
reply_ok(cf, controlfd, &raddr, rlen, cookie);
return 0;
break;
default:
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "unknown command");
reply_error(cf, controlfd, &raddr, rlen, cookie, 3);
return 0;
}
call_id = argv[1];
if (op == UPDATE || op == LOOKUP || op == PLAY) {
max_argc = (op == UPDATE ? 8 : 6);
if (argc < 5 || argc > max_argc) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 4);
return 0;
}
from_tag = argv[4];
to_tag = argv[5];
if (op == PLAY && argv[0][1] != '\0')
playcount = atoi(argv[0] + 1);
if (op == UPDATE && argc > 6) {
socket_name_u = argv[6];
if (strncmp("unix:", socket_name_u, 5) == 0)
socket_name_u += 5;
if (argc == 8) {
notify_tag = argv[7];
len = url_unquote((uint8_t *)notify_tag, strlen(notify_tag));
if (len == -1) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog,
"command syntax error - invalid URL encoding");
reply_error(cf, controlfd, &raddr, rlen, cookie, 4);
return 0;
}
notify_tag[len] = '\0';
}
}
}
if (op == COPY) {
if (argc < 4 || argc > 5) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 1);
return 0;
}
recording_name = argv[2];
from_tag = argv[3];
to_tag = argv[4];
}
if (op == DELETE || op == RECORD || op == NOPLAY || op == QUERY) {
if (argc < 3 || argc > 4) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 1);
return 0;
}
from_tag = argv[2];
to_tag = argv[3];
}
if (op == DELETE || op == RECORD || op == COPY || op == NOPLAY) {
/* D, R and S commands don't take any modifiers */
if (argv[0][1] != '\0') {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 1);
return 0;
}
}
if (op == UPDATE || op == LOOKUP || op == DELETE) {
addr = argv[2];
port = argv[3];
/* Process additional command modifiers */
external = 1;
/* In bridge mode all clients are assumed to be asymmetric */
asymmetric = (cf->bmode != 0) ? 1 : 0;
pf = AF_INET;
weak = 0;
for (cp = argv[0] + 1; *cp != '\0'; cp++) {
switch (*cp) {
case 'a':
case 'A':
asymmetric = 1;
break;
case 'e':
case 'E':
if (lidx < 0) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 1);
return 0;
}
lia[lidx] = cf->bindaddr[1];
lidx--;
break;
case 'i':
case 'I':
if (lidx < 0) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 1);
return 0;
}
lia[lidx] = cf->bindaddr[0];
lidx--;
break;
case '6':
pf = AF_INET6;
break;
case 's':
case 'S':
asymmetric = 0;
break;
case 'w':
case 'W':
weak = 1;
break;
case 'z':
case 'Z':
requested_nsamples = (strtol(cp + 1, &cp, 10) / 10) * 80;
if (requested_nsamples <= 0) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 1);
return 0;
}
cp--;
break;
case 'c':
case 'C':
cp += 1;
for (t = cp; *cp != '\0'; cp++) {
if (!isdigit(*cp) && *cp != ',')
break;
}
if (t == cp) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 1);
return 0;
}
codecs = alloca(cp - t + 1);
memcpy(codecs, t, cp - t);
codecs[cp - t] = '\0';
cp--;
break;
default:
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "unknown command modifier `%c'",
*cp);
break;
}
}
if (op != DELETE && addr != NULL && port != NULL && strlen(addr) >= 7) {
struct sockaddr_storage tia;
if ((n = resolve(sstosa(&tia), pf, addr, port,
AI_NUMERICHOST)) == 0) {
if (!ishostnull(sstosa(&tia))) {
for (i = 0; i < 2; i++) {
ia[i] = malloc(SS_LEN(&tia));
if (ia[i] == NULL) {
handle_nomem(cf, controlfd, &raddr, rlen, cookie,
5, ia, fds, spa, spb);
return 0;
}
memcpy(ia[i], &tia, SS_LEN(&tia));
}
/* Set port for RTCP, will work both for IPv4 and IPv6 */
n = ntohs(satosin(ia[1])->sin_port);
satosin(ia[1])->sin_port = htons(n + 1);
}
} else {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "getaddrinfo: %s",
gai_strerror(n));
}
}
}
/*
* Record and delete need special handling since they apply to all
* streams in the session.
*/
switch (op) {
case DELETE:
i = handle_delete(cf, call_id, from_tag, to_tag, weak);
break;
case RECORD:
i = handle_record(cf, call_id, from_tag, to_tag);
break;
default:
i = find_stream(cf, call_id, from_tag, to_tag, &spa);
if (i != -1 && op != UPDATE)
i = NOT(i);
break;
}
if (i == -1 && op != UPDATE) {
rtpp_log_write(RTPP_LOG_INFO, cf->glog,
"%s request failed: session %s, tags %s/%s not found", rname,
call_id, from_tag, to_tag != NULL ? to_tag : "NONE");
if (op == LOOKUP) {
for (i = 0; i < 2; i++)
if (ia[i] != NULL)
free(ia[i]);
reply_port(cf, controlfd, &raddr, rlen, cookie, 0, lia);
return 0;
}
reply_error(cf, controlfd, &raddr, rlen, cookie, 8);
return 0;
}
switch (op) {
case DELETE:
case RECORD:
reply_ok(cf, controlfd, &raddr, rlen, cookie);
return 0;
case NOPLAY:
handle_noplay(cf, spa, i);
reply_ok(cf, controlfd, &raddr, rlen, cookie);
return 0;
case PLAY:
handle_noplay(cf, spa, i);
if (strcmp(codecs, "session") == 0) {
if (spa->codecs[i] == NULL) {
reply_error(cf, controlfd, &raddr, rlen, cookie, 6);
return 0;
}
codecs = spa->codecs[i];
}
if (playcount != 0 && handle_play(cf, spa, i, codecs, pname, playcount) != 0) {
reply_error(cf, controlfd, &raddr, rlen, cookie, 6);
return 0;
}
reply_ok(cf, controlfd, &raddr, rlen, cookie);
return 0;
case COPY:
handle_copy(cf, spa, i, recording_name);
reply_ok(cf, controlfd, &raddr, rlen, cookie);
return 0;
case QUERY:
handle_query(cf, controlfd, &raddr, rlen, cookie, spa, i);
return 0;
case LOOKUP:
case UPDATE:
/* those are handled below */
break;
default:
/* Programmatic error, should not happen */
abort();
}
pidx = 1;
lport = 0;
if (i != -1) {
assert(op == UPDATE || op == LOOKUP);
if (spa->fds[i] == -1) {
j = ishostseq(cf->bindaddr[0], spa->laddr[i]) ? 0 : 1;
if (create_listener(cf, spa->laddr[i], &lport, fds) == -1) {
rtpp_log_write(RTPP_LOG_ERR, spa->log, "can't create listener");
reply_error(cf, controlfd, &raddr, rlen, cookie, 7);
return 0;
}
assert(spa->fds[i] == -1);
spa->fds[i] = fds[0];
assert(spa->rtcp->fds[i] == -1);
spa->rtcp->fds[i] = fds[1];
spa->ports[i] = lport;
spa->rtcp->ports[i] = lport + 1;
spa->complete = spa->rtcp->complete = 1;
append_session(cf, spa, i);
append_session(cf, spa->rtcp, i);
}
if (weak)
spa->weak[i] = 1;
else if (op == UPDATE)
spa->strong = 1;
lport = spa->ports[i];
lia[0] = spa->laddr[i];
pidx = (i == 0) ? 1 : 0;
spa->ttl_mode = cf->ttl_mode;
spa->ttl[0] = cf->max_ttl;
spa->ttl[1] = cf->max_ttl;
if (op == UPDATE) {
rtpp_log_write(RTPP_LOG_INFO, spa->log,
"adding %s flag to existing session, new=%d/%d/%d",
weak ? ( i ? "weak[1]" : "weak[0]" ) : "strong",
spa->strong, spa->weak[0], spa->weak[1]);
}
rtpp_log_write(RTPP_LOG_INFO, spa->log,
"lookup on ports %d/%d, session timer restarted", spa->ports[0],
spa->ports[1]);
} else {
assert(op == UPDATE);
rtpp_log_write(RTPP_LOG_INFO, cf->glog,
"new session %s, tag %s requested, type %s",
call_id, from_tag, weak ? "weak" : "strong");
j = ishostseq(cf->bindaddr[0], lia[0]) ? 0 : 1;
if (create_listener(cf, cf->bindaddr[j], &lport, fds) == -1) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "can't create listener");
reply_error(cf, controlfd, &raddr, rlen, cookie, 10);
return 0;
}
/*
* Session creation. If creation is requested with weak flag,
* set weak[0].
*/
spa = malloc(sizeof(*spa));
if (spa == NULL) {
handle_nomem(cf, controlfd, &raddr, rlen, cookie, 11, ia,
fds, spa, spb);
return 0;
}
/* spb is RTCP twin session for this one. */
spb = malloc(sizeof(*spb));
if (spb == NULL) {
handle_nomem(cf, controlfd, &raddr, rlen, cookie, 12, ia,
fds, spa, spb);
return 0;
}
memset(spa, 0, sizeof(*spa));
memset(spb, 0, sizeof(*spb));
for (i = 0; i < 2; i++) {
spa->fds[i] = spb->fds[i] = -1;
spa->last_update[i] = 0;
spb->last_update[i] = 0;
}
spa->call_id = strdup(call_id);
if (spa->call_id == NULL) {
handle_nomem(cf, controlfd, &raddr, rlen, cookie, 13, ia,
fds, spa, spb);
return 0;
}
spb->call_id = spa->call_id;
spa->tag = strdup(from_tag);
if (spa->tag == NULL) {
handle_nomem(cf, controlfd, &raddr, rlen, cookie, 14, ia,
fds, spa, spb);
return 0;
}
spb->tag = spa->tag;
for (i = 0; i < 2; i++) {
spa->rrcs[i] = NULL;
spb->rrcs[i] = NULL;
spa->laddr[i] = lia[i];
spb->laddr[i] = lia[i];
}
spa->strong = spa->weak[0] = spa->weak[1] = 0;
if (weak)
spa->weak[0] = 1;
else
spa->strong = 1;
assert(spa->fds[0] == -1);
spa->fds[0] = fds[0];
assert(spb->fds[0] == -1);
spb->fds[0] = fds[1];
spa->ports[0] = lport;
spb->ports[0] = lport + 1;
spa->ttl[0] = cf->max_ttl;
spa->ttl[1] = cf->max_ttl;
spb->ttl[0] = -1;
spb->ttl[1] = -1;
spa->log = rtpp_log_open(cf, "rtpproxy", spa->call_id, 0);
spb->log = spa->log;
spa->rtcp = spb;
spb->rtcp = NULL;
spa->rtp = NULL;
spb->rtp = spa;
spa->sridx = spb->sridx = -1;
append_session(cf, spa, 0);
append_session(cf, spa, 1);
append_session(cf, spb, 0);
append_session(cf, spb, 1);
hash_table_append(cf, spa);
cf->sessions_created++;
cf->sessions_active++;
/*
* Each session can consume up to 5 open file descriptors (2 RTP,
* 2 RTCP and 1 logging) so that warn user when he is likely to
* exceed 80% mark on hard limit.
*/
if (cf->sessions_active > (cf->nofile_limit.rlim_max * 80 / (100 * 5)) &&
cf->nofile_limit_warned == 0) {
cf->nofile_limit_warned = 1;
rtpp_log_write(RTPP_LOG_WARN, cf->glog, "passed 80%% "
"threshold on the open file descriptors limit (%d), "
"consider increasing the limit using -L command line "
"option", (int)cf->nofile_limit.rlim_max);
}
rtpp_log_write(RTPP_LOG_INFO, spa->log, "new session on a port %d created, "
"tag %s", lport, from_tag);
if (cf->record_all != 0) {
handle_copy(cf, spa, 0, NULL);
handle_copy(cf, spa, 1, NULL);
}
}
if (op == UPDATE) {
if (cf->timeout_handler.socket_name == NULL && socket_name_u != NULL)
rtpp_log_write(RTPP_LOG_ERR, spa->log, "must permit notification socket with -n");
if (spa->timeout_data.notify_tag != NULL) {
free(spa->timeout_data.notify_tag);
spa->timeout_data.notify_tag = NULL;
}
if (cf->timeout_handler.socket_name != NULL && socket_name_u != NULL) {
if (strcmp(cf->timeout_handler.socket_name, socket_name_u) != 0) {
rtpp_log_write(RTPP_LOG_ERR, spa->log, "invalid socket name %s", socket_name_u);
socket_name_u = NULL;
} else {
rtpp_log_write(RTPP_LOG_INFO, spa->log, "setting timeout handler");
spa->timeout_data.handler = &cf->timeout_handler;
spa->timeout_data.notify_tag = strdup(notify_tag);
}
} else if (socket_name_u == NULL && spa->timeout_data.handler != NULL) {
spa->timeout_data.handler = NULL;
rtpp_log_write(RTPP_LOG_INFO, spa->log, "disabling timeout handler");
}
}
if (ia[0] != NULL && ia[1] != NULL) {
if (spa->addr[pidx] != NULL)
spa->last_update[pidx] = dtime;
if (spa->rtcp->addr[pidx] != NULL)
spa->rtcp->last_update[pidx] = dtime;
/*
* Unless the address provided by client historically
* cannot be trusted and address is different from one
* that we recorded update it.
*/
if (spa->untrusted_addr[pidx] == 0 && !(spa->addr[pidx] != NULL &&
SA_LEN(ia[0]) == SA_LEN(spa->addr[pidx]) &&
memcmp(ia[0], spa->addr[pidx], SA_LEN(ia[0])) == 0)) {
rtpp_log_write(RTPP_LOG_INFO, spa->log, "pre-filling %s's address "
"with %s:%s", (pidx == 0) ? "callee" : "caller", addr, port);
if (spa->addr[pidx] != NULL) {
if (spa->canupdate[pidx] == 0) {
if (spa->prev_addr[pidx] != NULL)
free(spa->prev_addr[pidx]);
spa->prev_addr[pidx] = spa->addr[pidx];
} else {
free(spa->addr[pidx]);
}
}
spa->addr[pidx] = ia[0];
ia[0] = NULL;
}
if (spa->rtcp->untrusted_addr[pidx] == 0 && !(spa->rtcp->addr[pidx] != NULL &&
SA_LEN(ia[1]) == SA_LEN(spa->rtcp->addr[pidx]) &&
memcmp(ia[1], spa->rtcp->addr[pidx], SA_LEN(ia[1])) == 0)) {
if (spa->rtcp->addr[pidx] != NULL) {
if (spa->rtcp->canupdate[pidx] == 0) {
if (spa->rtcp->prev_addr[pidx] != NULL)
free(spa->rtcp->prev_addr[pidx]);
spa->rtcp->prev_addr[pidx] = spa->rtcp->addr[pidx];
} else {
free(spa->rtcp->addr[pidx]);
}
}
spa->rtcp->addr[pidx] = ia[1];
ia[1] = NULL;
}
}
spa->asymmetric[pidx] = spa->rtcp->asymmetric[pidx] = asymmetric;
spa->canupdate[pidx] = spa->rtcp->canupdate[pidx] = NOT(asymmetric);
if (spa->codecs[pidx] != NULL) {
free(spa->codecs[pidx]);
spa->codecs[pidx] = NULL;
}
if (codecs != NULL)
spa->codecs[pidx] = strdup(codecs);
if (requested_nsamples > 0) {
rtpp_log_write(RTPP_LOG_INFO, spa->log, "RTP packets from %s "
"will be resized to %d milliseconds",
(pidx == 0) ? "callee" : "caller", requested_nsamples / 8);
} else if (spa->resizers[pidx].output_nsamples > 0) {
rtpp_log_write(RTPP_LOG_INFO, spa->log, "Resizing of RTP "
"packets from %s has been disabled",
(pidx == 0) ? "callee" : "caller");
}
spa->resizers[pidx].output_nsamples = requested_nsamples;
for (i = 0; i < 2; i++)
if (ia[i] != NULL)
free(ia[i]);
assert(lport != 0);
reply_port(cf, controlfd, &raddr, rlen, cookie, lport, lia);
return 0;
}
static void
rxmit_packets(struct cfg *cf, struct rtpp_session *sp, int ridx,
double dtime)
{
int ndrain, i, port;
struct rtp_packet *packet = NULL;
/* Repeat since we may have several packets queued on the same socket */
for (ndrain = 0; ndrain < 5; ndrain++) {
if (packet != NULL)
rtp_packet_free(packet);
packet = rtp_recv(sp->fds[ridx]);
if (packet == NULL)
break;
packet->laddr = sp->laddr[ridx];
packet->rport = sp->ports[ridx];
packet->rtime = dtime;
i = 0;
if (sp->addr[ridx] != NULL) {
/* Check that the packet is authentic, drop if it isn't */
if (sp->asymmetric[ridx] == 0) {
if (memcmp(sp->addr[ridx], &packet->raddr, packet->rlen) != 0) {
if (sp->canupdate[ridx] == 0) {
/*
* Continue, since there could be good packets in
* queue.
*/
continue;
}
/* Signal that an address has to be updated */
i = 1;
} else if (sp->canupdate[ridx] != 0 &&
sp->last_update[ridx] != 0 &&
dtime - sp->last_update[ridx] > UPDATE_WINDOW) {
sp->canupdate[ridx] = 0;
}
} else {
/*
* For asymmetric clients don't check
* source port since it may be different.
*/
if (!ishostseq(sp->addr[ridx], sstosa(&packet->raddr)))
/*
* Continue, since there could be good packets in
* queue.
*/
continue;
}
sp->pcount[ridx]++;
} else {
sp->pcount[ridx]++;
sp->addr[ridx] = malloc(packet->rlen);
if (sp->addr[ridx] == NULL) {
sp->pcount[3]++;
rtpp_log_write(RTPP_LOG_ERR, sp->log,
"can't allocate memory for remote address - "
"removing session");
remove_session(cf, GET_RTP(sp));
/* Break, sp is invalid now */
break;
}
/* Signal that an address have to be updated. */
i = 1;
}
/*
* Update recorded address if it's necessary. Set "untrusted address"
* flag in the session state, so that possible future address updates
* from that client won't get address changed immediately to some
* bogus one.
*/
if (i != 0) {
sp->untrusted_addr[ridx] = 1;
memcpy(sp->addr[ridx], &packet->raddr, packet->rlen);
if (sp->prev_addr[ridx] == NULL || memcmp(sp->prev_addr[ridx],
&packet->raddr, packet->rlen) != 0) {
sp->canupdate[ridx] = 0;
}
port = ntohs(satosin(&packet->raddr)->sin_port);
rtpp_log_write(RTPP_LOG_INFO, sp->log,
"%s's address filled in: %s:%d (%s)",
(ridx == 0) ? "callee" : "caller",
addr2char(sstosa(&packet->raddr)), port,
(sp->rtp == NULL) ? "RTP" : "RTCP");
/*
* Check if we have updated RTP while RTCP is still
* empty or contains address that differs from one we
* used when updating RTP. Try to guess RTCP if so,
* should be handy for non-NAT'ed clients, and some
* NATed as well.
*/
if (sp->rtcp != NULL && (sp->rtcp->addr[ridx] == NULL ||
!ishostseq(sp->rtcp->addr[ridx], sstosa(&packet->raddr)))) {
if (sp->rtcp->addr[ridx] == NULL) {
sp->rtcp->addr[ridx] = malloc(packet->rlen);
if (sp->rtcp->addr[ridx] == NULL) {
sp->pcount[3]++;
rtpp_log_write(RTPP_LOG_ERR, sp->log,
"can't allocate memory for remote address - "
"removing session");
remove_session(cf, sp);
/* Break, sp is invalid now */
break;
}
}
memcpy(sp->rtcp->addr[ridx], &packet->raddr, packet->rlen);
satosin(sp->rtcp->addr[ridx])->sin_port = htons(port + 1);
/* Use guessed value as the only true one for asymmetric clients */
sp->rtcp->canupdate[ridx] = NOT(sp->rtcp->asymmetric[ridx]);
rtpp_log_write(RTPP_LOG_INFO, sp->log, "guessing RTCP port "
"for %s to be %d",
(ridx == 0) ? "callee" : "caller", port + 1);
}
}
if (sp->resizers[ridx].output_nsamples > 0)
rtp_resizer_enqueue(&sp->resizers[ridx], &packet);
if (packet != NULL)
send_packet(cf, sp, ridx, packet);
}
if (packet != NULL)
rtp_packet_free(packet);
}
static int
handle_delete(struct cfg *cf, char *call_id, char *from_tag, char *to_tag, int weak)
{
int ndeleted;
unsigned int medianum;
struct rtpp_session *spa, *spb;
int cmpr, cmpr1, idx;
ndeleted = 0;
for (spa = session_findfirst(cf, call_id); spa != NULL;) {
medianum = 0;
if ((cmpr1 = compare_session_tags(spa->tag, from_tag, &medianum)) != 0) {
idx = 1;
cmpr = cmpr1;
} else if (to_tag != NULL &&
(cmpr1 = compare_session_tags(spa->tag, to_tag, &medianum)) != 0) {
idx = 0;
cmpr = cmpr1;
} else {
spa = session_findnext(spa);
continue;
}
if (weak)
spa->weak[idx] = 0;
else
spa->strong = 0;
/*
* This seems to be stable from reiterations, the only side
* effect is less efficient work.
*/
if (spa->strong || spa->weak[0] || spa->weak[1]) {
rtpp_log_write(RTPP_LOG_INFO, spa->log,
"delete: medianum=%u: removing %s flag, seeing flags to"
" continue session (strong=%d, weak=%d/%d)",
medianum,
weak ? ( idx ? "weak[1]" : "weak[0]" ) : "strong",
spa->strong, spa->weak[0], spa->weak[1]);
/* Skipping to next possible stream for this call */
++ndeleted;
spa = session_findnext(spa);
continue;
}
rtpp_log_write(RTPP_LOG_INFO, spa->log,
"forcefully deleting session %u on ports %d/%d",
medianum, spa->ports[0], spa->ports[1]);
/* Search forward before we do removal */
spb = spa;
spa = session_findnext(spa);
remove_session(cf, spb);
++ndeleted;
if (cmpr != 2) {
break;
}
}
if (ndeleted == 0) {
return -1;
}
return 0;
}
int
main(int argc, char **argv)
{
int i, len, timeout, controlfd, alarm_tick;
double sptime, eptime, last_tick_time;
unsigned long delay;
struct cfg cf;
char buf[256];
memset(&cf, 0, sizeof(cf));
init_config(&cf, argc, argv);
seedrandom();
init_hash_table(&cf.stable);
init_port_table(&cf);
controlfd = init_controlfd(&cf);
if (cf.stable.nodaemon == 0) {
if (rtpp_daemon(0, 0) == -1)
err(1, "can't switch into daemon mode");
/* NOTREACHED */
}
glog = cf.stable.glog = rtpp_log_open(&cf.stable, "rtpproxy", NULL, LF_REOPEN);
atexit(ehandler);
rtpp_log_write(RTPP_LOG_INFO, cf.stable.glog, "rtpproxy started, pid %d", getpid());
if (cf.timeout_socket != NULL) {
cf.timeout_handler = rtpp_notify_init(glog, cf.timeout_socket);
if (cf.timeout_handler == NULL) {
rtpp_log_ewrite(RTPP_LOG_ERR, glog, "can't start notification thread");
exit(1);
}
}
i = open(pid_file, O_WRONLY | O_CREAT | O_TRUNC, DEFFILEMODE);
if (i >= 0) {
len = sprintf(buf, "%u\n", (unsigned int)getpid());
write(i, buf, len);
close(i);
} else {
rtpp_log_ewrite(RTPP_LOG_ERR, cf.stable.glog, "can't open pidfile for writing");
}
signal(SIGHUP, fatsignal);
signal(SIGINT, fatsignal);
signal(SIGKILL, fatsignal);
signal(SIGPIPE, SIG_IGN);
signal(SIGTERM, fatsignal);
signal(SIGXCPU, fatsignal);
signal(SIGXFSZ, fatsignal);
signal(SIGVTALRM, fatsignal);
signal(SIGPROF, fatsignal);
signal(SIGUSR1, fatsignal);
signal(SIGUSR2, fatsignal);
if (cf.stable.run_uname != NULL || cf.stable.run_gname != NULL) {
if (drop_privileges(&cf) != 0) {
rtpp_log_ewrite(RTPP_LOG_ERR, cf.stable.glog,
"can't switch to requested user/group");
exit(1);
}
}
cf.stable.controlfd = controlfd;
cf.sessinfo.sessions[0] = NULL;
cf.sessinfo.nsessions = 0;
cf.rtp_nsessions = 0;
rtpp_command_async_init(&cf);
sptime = 0;
last_tick_time = 0;
for (;;) {
pthread_mutex_lock(&cf.glock);
pthread_mutex_lock(&cf.sessinfo.lock);
if (cf.rtp_nsessions > 0 || cf.sessinfo.nsessions > 0) {
timeout = RTPS_TICKS_MIN;
} else {
timeout = TIMETICK * 1000;
}
pthread_mutex_unlock(&cf.sessinfo.lock);
pthread_mutex_unlock(&cf.glock);
eptime = getdtime();
delay = (eptime - sptime) * 1000000.0;
if (delay < (1000000 / POLL_LIMIT)) {
usleep((1000000 / POLL_LIMIT) - delay);
sptime = getdtime();
} else {
sptime = eptime;
}
pthread_mutex_lock(&cf.sessinfo.lock);
if (cf.sessinfo.nsessions > 0) {
i = poll(cf.sessinfo.pfds, cf.sessinfo.nsessions, timeout);
pthread_mutex_unlock(&cf.sessinfo.lock);
if (i < 0 && errno == EINTR)
continue;
} else {
pthread_mutex_unlock(&cf.sessinfo.lock);
usleep(timeout * 1000);
}
eptime = getdtime();
pthread_mutex_lock(&cf.glock);
if (cf.rtp_nsessions > 0) {
process_rtp_servers(&cf, eptime);
}
pthread_mutex_unlock(&cf.glock);
if (eptime > last_tick_time + TIMETICK) {
alarm_tick = 1;
last_tick_time = eptime;
} else {
alarm_tick = 0;
}
pthread_mutex_lock(&cf.glock);
process_rtp(&cf, eptime, alarm_tick);
pthread_mutex_unlock(&cf.glock);
}
exit(0);
}
int
main(int argc, char **argv)
{
int i, len;
double eval, clk;
long long ncycles_ref, counter;
double eptime;
double add_delay;
struct cfg cf;
char buf[256];
struct recfilter loop_error;
struct PFD phase_detector;
useconds_t usleep_time;
struct sched_param sparam;
#if RTPP_DEBUG
double sleep_time, filter_lastval;
#endif
memset(&cf, 0, sizeof(cf));
cf.stable = malloc(sizeof(struct rtpp_cfg_stable));
if (cf.stable == NULL) {
err(1, "can't allocate memory for the struct rtpp_cfg_stable");
/* NOTREACHED */
}
memset(cf.stable, '\0', sizeof(struct rtpp_cfg_stable));
cf.stable->ctrl_socks = malloc(sizeof(struct rtpp_list));
if (cf.stable->ctrl_socks == NULL) {
err(1, "can't allocate memory for the struct rtpp_cfg_stable");
/* NOTREACHED */
}
memset(cf.stable->ctrl_socks, '\0', sizeof(struct rtpp_list));
RTPP_LIST_RESET(cf.stable->ctrl_socks);
init_config(&cf, argc, argv);
seedrandom();
cf.stable->sessions_ht = rtpp_hash_table_ctor();
if (cf.stable->sessions_ht == NULL) {
err(1, "can't allocate memory for the hash table");
/* NOTREACHED */
}
cf.stable->rtpp_stats = rtpp_stats_ctor();
if (cf.stable->rtpp_stats == NULL) {
err(1, "can't allocate memory for the stats data");
/* NOTREACHED */
}
init_port_table(&cf);
if (rtpp_controlfd_init(&cf) != 0) {
err(1, "can't inilialize control socket%s",
cf.stable->ctrl_socks->len > 1 ? "s" : "");
}
if (cf.stable->nodaemon == 0) {
if (rtpp_daemon(0, 0) == -1)
err(1, "can't switch into daemon mode");
/* NOTREACHED */
}
if (rtpp_notify_init() != 0)
errx(1, "can't start notification thread");
cf.stable->glog = rtpp_log_open(cf.stable, "rtpproxy", NULL, LF_REOPEN);
rtpp_log_setlevel(cf.stable->glog, cf.stable->log_level);
_sig_cf = &cf;
atexit(ehandler);
rtpp_log_write(RTPP_LOG_INFO, cf.stable->glog, "rtpproxy started, pid %d", getpid());
i = open(cf.stable->pid_file, O_WRONLY | O_CREAT | O_TRUNC, DEFFILEMODE);
if (i >= 0) {
len = sprintf(buf, "%u\n", (unsigned int)getpid());
write(i, buf, len);
close(i);
} else {
rtpp_log_ewrite(RTPP_LOG_ERR, cf.stable->glog, "can't open pidfile for writing");
}
signal(SIGHUP, sighup);
signal(SIGINT, fatsignal);
signal(SIGKILL, fatsignal);
signal(SIGPIPE, SIG_IGN);
signal(SIGTERM, fatsignal);
signal(SIGXCPU, fatsignal);
signal(SIGXFSZ, fatsignal);
signal(SIGVTALRM, fatsignal);
signal(SIGPROF, fatsignal);
signal(SIGUSR1, fatsignal);
signal(SIGUSR2, fatsignal);
if (cf.stable->sched_policy != SCHED_OTHER) {
sparam.sched_priority = sched_get_priority_max(cf.stable->sched_policy);
if (sched_setscheduler(0, cf.stable->sched_policy, &sparam) == -1) {
rtpp_log_ewrite(RTPP_LOG_ERR, cf.stable->glog, "sched_setscheduler(SCHED_%s, %d)",
(cf.stable->sched_policy == SCHED_FIFO) ? "FIFO" : "RR", sparam.sched_priority);
}
}
if (cf.stable->run_uname != NULL || cf.stable->run_gname != NULL) {
if (drop_privileges(&cf) != 0) {
rtpp_log_ewrite(RTPP_LOG_ERR, cf.stable->glog,
"can't switch to requested user/group");
exit(1);
}
}
set_rlimits(&cf);
cf.sessinfo.sessions[0] = NULL;
cf.sessinfo.nsessions = 0;
cf.rtp_nsessions = 0;
rtpp_command_async_init(&cf);
rtpp_proc_async_init(&cf);
counter = 0;
recfilter_init(&loop_error, 0.96, 0.0, 0);
PFD_init(&phase_detector, 2.0);
#ifdef HAVE_SYSTEMD_SD_DAEMON_H
sd_notify(0, "READY=1");
#endif
#ifdef RTPP_CHECK_LEAKS
rtpp_memdeb_setbaseln();
#endif
for (;;) {
eptime = getdtime();
clk = (eptime + cf.stable->sched_offset) * cf.stable->target_pfreq;
ncycles_ref = llrint(clk);
eval = PFD_get_error(&phase_detector, clk);
#if RTPP_DEBUG
filter_lastval = loop_error.lastval;
#endif
if (eval != 0.0) {
recfilter_apply(&loop_error, sigmoid(eval));
}
#if RTPP_DEBUG
if (counter % (unsigned int)cf.stable->target_pfreq == 0 || counter < 1000) {
rtpp_log_write(RTPP_LOG_DBUG, cf.stable->glog, "run %lld ncycles %f raw error1 %f, filter lastval %f, filter nextval %f",
counter, clk, eval, filter_lastval, loop_error.lastval);
}
#endif
add_delay = freqoff_to_period(cf.stable->target_pfreq, 1.0, loop_error.lastval);
usleep_time = add_delay * 1000000.0;
#if RTPP_DEBUG
if (counter % (unsigned int)cf.stable->target_pfreq == 0 || counter < 1000) {
rtpp_log_write(RTPP_LOG_DBUG, cf.stable->glog, "run %lld filter lastval %f, filter nextval %f, error %f",
counter, filter_lastval, loop_error.lastval, sigmoid(eval));
rtpp_log_write(RTPP_LOG_DBUG, cf.stable->glog, "run %lld extra sleeping time %llu", counter, usleep_time);
}
sleep_time = getdtime();
#endif
rtpp_proc_async_wakeup(cf.stable->rtpp_proc_cf, counter, ncycles_ref);
usleep(usleep_time);
#if RTPP_DEBUG
sleep_time = getdtime() - sleep_time;
if (counter % (unsigned int)cf.stable->target_pfreq == 0 || counter < 1000 || sleep_time > add_delay * 2.0) {
rtpp_log_write(RTPP_LOG_DBUG, cf.stable->glog, "run %lld sleeping time required %llu sleeping time actual %f, CSV: %f,%f,%f", \
counter, usleep_time, sleep_time, (double)counter / cf.stable->target_pfreq, ((double)usleep_time) / 1000.0, sleep_time * 1000.0);
}
#endif
counter += 1;
if (cf.stable->slowshutdown != 0) {
pthread_mutex_lock(&cf.sessinfo.lock);
if (cf.sessinfo.nsessions == 0) {
/* The below unlock is not necessary, but does not hurt either */
pthread_mutex_unlock(&cf.sessinfo.lock);
rtpp_log_write(RTPP_LOG_INFO, cf.stable->glog,
"deorbiting-burn sequence completed, exiting");
break;
}
pthread_mutex_unlock(&cf.sessinfo.lock);
}
}
#ifdef HAVE_SYSTEMD_SD_DAEMON_H
sd_notify(0, "STATUS=Exited");
#endif
#ifdef RTPP_CHECK_LEAKS
exit(rtpp_memdeb_dumpstats(&cf) == 0 ? 0 : 1);
#else
exit(0);
#endif
}