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Merge branch 'jerlbeck/features/mgcp-rtp-keep-alive'

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This commit is contained in:
Holger Hans Peter Freyther 2014-01-16 14:08:16 +01:00
commit f50c5dfc64
9 changed files with 312 additions and 55 deletions
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9
openbsc/include/openbsc/mgcp.h
View file

@ -25,6 +25,7 @@
#include <osmocom/core/msgb.h>
#include <osmocom/core/write_queue.h>
#include <osmocom/core/timer.h>
#include "debug.h"
@ -103,6 +104,8 @@ struct mgcp_port_range {
int last_port;
};
#define MGCP_KEEPALIVE_ONCE (-1)
struct mgcp_trunk_config {
struct llist_head entry;
@ -118,6 +121,7 @@ struct mgcp_trunk_config {
int audio_loop;
int omit_rtcp;
int keepalive_interval;
/* RTP patching */
int force_constant_ssrc; /* 0: don't, 1: once */
@ -126,6 +130,9 @@ struct mgcp_trunk_config {
/* spec handling */
int force_realloc;
/* timer */
struct osmo_timer_list keepalive_timer;
unsigned int number_endpoints;
struct mgcp_endpoint *endpoints;
};
@ -187,6 +194,8 @@ int mgcp_reset_transcoder(struct mgcp_config *cfg);
void mgcp_format_stats(struct mgcp_endpoint *endp, char *stats, size_t size);
int mgcp_parse_stats(struct msgb *msg, uint32_t *ps, uint32_t *os, uint32_t *pr, uint32_t *_or, int *loss, uint32_t *jitter);
void mgcp_trunk_set_keepalive(struct mgcp_trunk_config *tcfg, int interval);
/*
* format helper functions
*/

2
openbsc/include/openbsc/mgcp_internal.h
View file

@ -71,6 +71,7 @@ struct mgcp_rtp_end {
/* statistics */
unsigned int packets;
unsigned int octets;
unsigned int dropped_packets;
struct in_addr addr;
/* in network byte order */
@ -84,6 +85,7 @@ struct mgcp_rtp_end {
int frames_per_packet;
uint32_t packet_duration_ms;
char *fmtp_extra;
int output_enabled;
/* RTP patching */
int force_constant_ssrc; /* -1: always, 0: don't, 1: once */

71
openbsc/src/libmgcp/mgcp_network.c
View file

@ -129,9 +129,16 @@ static int mgcp_udp_send(int fd, struct in_addr *addr, int port, char *buf,
int mgcp_send_dummy(struct mgcp_endpoint *endp)
{
static char buf[] = { MGCP_DUMMY_LOAD };
int rc;
return mgcp_udp_send(endp->net_end.rtp.fd, &endp->net_end.addr,
endp->net_end.rtp_port, buf, 1);
rc = mgcp_udp_send(endp->net_end.rtp.fd, &endp->net_end.addr,
endp->net_end.rtp_port, buf, 1);
if (rc == -1 || endp->tcfg->omit_rtcp)
return rc;
return mgcp_udp_send(endp->net_end.rtcp.fd, &endp->net_end.addr,
endp->net_end.rtcp_port, buf, 1);
}
static int32_t compute_timestamp_aligment_error(struct mgcp_rtp_stream_state *sstate,
@ -241,10 +248,11 @@ static int adjust_rtp_timestamp_offset(struct mgcp_endpoint *endp,
struct mgcp_rtp_state *state,
struct mgcp_rtp_end *rtp_end,
struct sockaddr_in *addr,
int16_t delta_seq, uint32_t timestamp)
int16_t delta_seq, uint32_t in_timestamp)
{
int32_t tsdelta = state->packet_duration;
int timestamp_offset;
uint32_t out_timestamp;
if (tsdelta == 0) {
tsdelta = state->out_stream.last_tsdelta;
@ -269,9 +277,8 @@ static int adjust_rtp_timestamp_offset(struct mgcp_endpoint *endp,
}
}
timestamp_offset =
state->out_stream.last_timestamp - timestamp +
delta_seq * tsdelta;
out_timestamp = state->out_stream.last_timestamp + delta_seq * tsdelta;
timestamp_offset = out_timestamp - in_timestamp;
if (state->timestamp_offset != timestamp_offset) {
state->timestamp_offset = timestamp_offset;
@ -537,6 +544,10 @@ static int mgcp_send(struct mgcp_endpoint *endp, int dest, int is_rtp,
struct sockaddr_in *addr, char *buf, int rc)
{
struct mgcp_trunk_config *tcfg = endp->tcfg;
struct mgcp_rtp_end *rtp_end;
struct mgcp_rtp_state *rtp_state;
int tap_idx;
/* For loop toggle the destination and then dispatch. */
if (tcfg->audio_loop)
dest = !dest;
@ -546,35 +557,27 @@ static int mgcp_send(struct mgcp_endpoint *endp, int dest, int is_rtp,
dest = !dest;
if (dest == MGCP_DEST_NET) {
if (is_rtp) {
mgcp_patch_and_count(endp, &endp->bts_state,
&endp->net_end,
addr, buf, rc);
forward_data(endp->net_end.rtp.fd,
&endp->taps[MGCP_TAP_NET_OUT], buf, rc);
return mgcp_udp_send(endp->net_end.rtp.fd,
&endp->net_end.addr,
endp->net_end.rtp_port, buf, rc);
} else if (!tcfg->omit_rtcp) {
return mgcp_udp_send(endp->net_end.rtcp.fd,
&endp->net_end.addr,
endp->net_end.rtcp_port, buf, rc);
}
rtp_end = &endp->net_end;
rtp_state = &endp->bts_state;
tap_idx = MGCP_TAP_NET_OUT;
} else {
if (is_rtp) {
mgcp_patch_and_count(endp, &endp->net_state,
&endp->bts_end,
addr, buf, rc);
forward_data(endp->bts_end.rtp.fd,
&endp->taps[MGCP_TAP_BTS_OUT], buf, rc);
return mgcp_udp_send(endp->bts_end.rtp.fd,
&endp->bts_end.addr,
endp->bts_end.rtp_port, buf, rc);
} else if (!tcfg->omit_rtcp) {
return mgcp_udp_send(endp->bts_end.rtcp.fd,
&endp->bts_end.addr,
endp->bts_end.rtcp_port, buf, rc);
}
rtp_end = &endp->bts_end;
rtp_state = &endp->net_state;
tap_idx = MGCP_TAP_BTS_OUT;
}
if (!rtp_end->output_enabled)
rtp_end->dropped_packets += 1;
else if (is_rtp) {
mgcp_patch_and_count(endp, rtp_state, rtp_end, addr, buf, rc);
forward_data(rtp_end->rtp.fd, &endp->taps[tap_idx], buf, rc);
return mgcp_udp_send(rtp_end->rtp.fd,
&rtp_end->addr,
rtp_end->rtp_port, buf, rc);
} else if (!tcfg->omit_rtcp) {
return mgcp_udp_send(rtp_end->rtcp.fd,
&rtp_end->addr,
rtp_end->rtcp_port, buf, rc);
}
return 0;

82
openbsc/src/libmgcp/mgcp_protocol.c
View file

@ -488,22 +488,45 @@ static struct msgb *handle_audit_endpoint(struct mgcp_parse_data *p)
return create_ok_response(p->endp, 200, "AUEP", p->trans);
}
static int parse_conn_mode(const char *msg, int *conn_mode)
static int parse_conn_mode(const char *msg, struct mgcp_endpoint *endp)
{
int ret = 0;
if (strcmp(msg, "recvonly") == 0)
*conn_mode = MGCP_CONN_RECV_ONLY;
endp->conn_mode = MGCP_CONN_RECV_ONLY;
else if (strcmp(msg, "sendrecv") == 0)
*conn_mode = MGCP_CONN_RECV_SEND;
endp->conn_mode = MGCP_CONN_RECV_SEND;
else if (strcmp(msg, "sendonly") == 0)
*conn_mode = MGCP_CONN_SEND_ONLY;
endp->conn_mode = MGCP_CONN_SEND_ONLY;
else if (strcmp(msg, "loopback") == 0)
*conn_mode = MGCP_CONN_LOOPBACK;
endp->conn_mode = MGCP_CONN_LOOPBACK;
else {
LOGP(DMGCP, LOGL_ERROR, "Unknown connection mode: '%s'\n", msg);
ret = -1;
}
switch (endp->conn_mode) {
case MGCP_CONN_NONE:
endp->net_end.output_enabled = 0;
endp->bts_end.output_enabled = 0;
break;
case MGCP_CONN_RECV_ONLY:
endp->net_end.output_enabled = 0;
endp->bts_end.output_enabled = 1;
break;
case MGCP_CONN_SEND_ONLY:
endp->net_end.output_enabled = 1;
endp->bts_end.output_enabled = 0;
break;
default:
endp->net_end.output_enabled = 1;
endp->bts_end.output_enabled = 1;
break;
}
return ret;
}
@ -794,7 +817,7 @@ mgcp_header_done:
set_local_cx_options(endp->tcfg->endpoints, &endp->local_options,
local_options);
if (parse_conn_mode(mode, &endp->conn_mode) != 0) {
if (parse_conn_mode(mode, endp) != 0) {
error_code = 517;
goto error2;
}
@ -854,6 +877,9 @@ mgcp_header_done:
if (p->cfg->change_cb)
p->cfg->change_cb(tcfg, ENDPOINT_NUMBER(endp), MGCP_ENDP_CRCX);
if (endp->bts_end.output_enabled && tcfg->keepalive_interval != 0)
mgcp_send_dummy(endp);
create_transcoder(endp);
return create_response_with_sdp(endp, "CRCX", p->trans);
error2:
@ -895,7 +921,7 @@ static struct msgb *handle_modify_con(struct mgcp_parse_data *p)
local_options = (const char *) line + 3;
break;
case 'M':
if (parse_conn_mode(line + 3, &endp->conn_mode) != 0) {
if (parse_conn_mode(line + 3, endp) != 0) {
error_code = 517;
goto error3;
}
@ -952,6 +978,10 @@ static struct msgb *handle_modify_con(struct mgcp_parse_data *p)
ENDPOINT_NUMBER(endp), inet_ntoa(endp->net_end.addr), ntohs(endp->net_end.rtp_port));
if (p->cfg->change_cb)
p->cfg->change_cb(endp->tcfg, ENDPOINT_NUMBER(endp), MGCP_ENDP_MDCX);
if (endp->bts_end.output_enabled && endp->tcfg->keepalive_interval != 0)
mgcp_send_dummy(endp);
if (silent)
goto out_silent;
@ -1104,6 +1134,40 @@ static struct msgb *handle_noti_req(struct mgcp_parse_data *p)
create_err_response(p->endp, res, "RQNT", p->trans);
}
static void mgcp_keepalive_timer_cb(void *_tcfg)
{
struct mgcp_trunk_config *tcfg = _tcfg;
int i;
LOGP(DMGCP, LOGL_DEBUG, "Triggered trunk %d keepalive timer.\n",
tcfg->trunk_nr);
if (tcfg->keepalive_interval <= 0)
return;
for (i = 1; i < tcfg->number_endpoints; ++i) {
struct mgcp_endpoint *endp = &tcfg->endpoints[i];
if (endp->conn_mode == MGCP_CONN_RECV_ONLY)
mgcp_send_dummy(endp);
}
LOGP(DMGCP, LOGL_DEBUG, "Rescheduling trunk %d keepalive timer.\n",
tcfg->trunk_nr);
osmo_timer_schedule(&tcfg->keepalive_timer, tcfg->keepalive_interval, 0);
}
void mgcp_trunk_set_keepalive(struct mgcp_trunk_config *tcfg, int interval)
{
tcfg->keepalive_interval = interval;
tcfg->keepalive_timer.data = tcfg;
tcfg->keepalive_timer.cb = mgcp_keepalive_timer_cb;
if (interval <= 0)
osmo_timer_del(&tcfg->keepalive_timer);
else
osmo_timer_schedule(&tcfg->keepalive_timer,
tcfg->keepalive_interval, 0);
}
struct mgcp_config *mgcp_config_alloc(void)
{
struct mgcp_config *cfg;
@ -1130,6 +1194,7 @@ struct mgcp_config *mgcp_config_alloc(void)
cfg->trunk.audio_payload = 126;
cfg->trunk.audio_send_ptime = 1;
cfg->trunk.omit_rtcp = 0;
mgcp_trunk_set_keepalive(&cfg->trunk, MGCP_KEEPALIVE_ONCE);
INIT_LLIST_HEAD(&cfg->trunks);
@ -1154,6 +1219,7 @@ struct mgcp_trunk_config *mgcp_trunk_alloc(struct mgcp_config *cfg, int nr)
trunk->audio_send_ptime = 1;
trunk->number_endpoints = 33;
trunk->omit_rtcp = 0;
mgcp_trunk_set_keepalive(trunk, MGCP_KEEPALIVE_ONCE);
llist_add_tail(&trunk->entry, &cfg->trunks);
return trunk;
}
@ -1178,6 +1244,7 @@ static void mgcp_rtp_end_reset(struct mgcp_rtp_end *end)
end->packets = 0;
end->octets = 0;
end->dropped_packets = 0;
memset(&end->addr, 0, sizeof(end->addr));
end->rtp_port = end->rtcp_port = 0;
end->payload_type = -1;
@ -1191,6 +1258,7 @@ static void mgcp_rtp_end_reset(struct mgcp_rtp_end *end)
end->frames_per_packet = 0; /* unknown */
end->packet_duration_ms = DEFAULT_RTP_AUDIO_PACKET_DURATION_MS;
end->rate = DEFAULT_RTP_AUDIO_DEFAULT_RATE;
end->output_enabled = 1;
}
static void mgcp_rtp_end_init(struct mgcp_rtp_end *end)

99
openbsc/src/libmgcp/mgcp_vty.c
View file

@ -32,6 +32,7 @@
#define RTCP_OMIT_STR "Drop RTCP packets in both directions\n"
#define RTP_PATCH_STR "Modify RTP packet header in both directions\n"
#define RTP_KEEPALIVE_STR "Send dummy UDP packet to net RTP destination\n"
static struct mgcp_config *g_cfg = NULL;
@ -85,6 +86,14 @@ static int config_write_mgcp(struct vty *vty)
g_cfg->net_ports.range_start, g_cfg->net_ports.range_end, VTY_NEWLINE);
vty_out(vty, " rtp ip-dscp %d%s", g_cfg->endp_dscp, VTY_NEWLINE);
if (g_cfg->trunk.keepalive_interval == MGCP_KEEPALIVE_ONCE)
vty_out(vty, " rtp keep-alive once%s", VTY_NEWLINE);
else if (g_cfg->trunk.keepalive_interval)
vty_out(vty, " rtp keep-alive %d%s",
g_cfg->trunk.keepalive_interval, VTY_NEWLINE);
else
vty_out(vty, " no rtp keep-alive%s", VTY_NEWLINE);
if (g_cfg->trunk.omit_rtcp)
vty_out(vty, " rtcp-omit%s", VTY_NEWLINE);
else
@ -150,7 +159,7 @@ static void dump_trunk(struct vty *vty, struct mgcp_trunk_config *cfg, int verbo
endp->trans_net.packets, endp->trans_bts.packets,
VTY_NEWLINE);
if (verbose)
if (verbose) {
vty_out(vty,
" Timestamp Errs: BTS %d->%d, Net %d->%d%s",
endp->bts_state.in_stream.err_ts_counter,
@ -158,6 +167,12 @@ static void dump_trunk(struct vty *vty, struct mgcp_trunk_config *cfg, int verbo
endp->net_state.in_stream.err_ts_counter,
endp->net_state.out_stream.err_ts_counter,
VTY_NEWLINE);
vty_out(vty,
" Dropped Packets: Net->BTS %d, BTS->Net %d%s",
endp->bts_end.dropped_packets,
endp->net_end.dropped_packets,
VTY_NEWLINE);
}
}
}
@ -505,6 +520,39 @@ DEFUN(cfg_mgcp_no_patch_rtp,
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_rtp_keepalive,
cfg_mgcp_rtp_keepalive_cmd,
"rtp keep-alive <1-120>",
RTP_STR RTP_KEEPALIVE_STR
"Keep alive interval in secs\n"
)
{
mgcp_trunk_set_keepalive(&g_cfg->trunk, atoi(argv[0]));
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_rtp_keepalive_once,
cfg_mgcp_rtp_keepalive_once_cmd,
"rtp keep-alive once",
RTP_STR RTP_KEEPALIVE_STR
"Send dummy packet only once after CRCX/MDCX\n"
)
{
mgcp_trunk_set_keepalive(&g_cfg->trunk, MGCP_KEEPALIVE_ONCE);
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_no_rtp_keepalive,
cfg_mgcp_no_rtp_keepalive_cmd,
"no rtp keep-alive",
NO_STR RTP_STR RTP_KEEPALIVE_STR
)
{
mgcp_trunk_set_keepalive(&g_cfg->trunk, 0);
return CMD_SUCCESS;
}
#define CALL_AGENT_STR "Callagent information\n"
DEFUN(cfg_mgcp_agent_addr,
@ -592,6 +640,15 @@ static int config_write_trunk(struct vty *vty)
trunk->audio_name, VTY_NEWLINE);
vty_out(vty, " %ssdp audio-payload send-ptime%s",
trunk->audio_send_ptime ? "" : "no ", VTY_NEWLINE);
if (trunk->keepalive_interval == MGCP_KEEPALIVE_ONCE)
vty_out(vty, " rtp keep-alive once%s", VTY_NEWLINE);
else if (trunk->keepalive_interval)
vty_out(vty, " rtp keep-alive %d%s",
trunk->keepalive_interval, VTY_NEWLINE);
else
vty_out(vty, " no rtp keep-alive%s", VTY_NEWLINE);
vty_out(vty, " loop %d%s",
trunk->audio_loop, VTY_NEWLINE);
if (trunk->omit_rtcp)
@ -774,6 +831,40 @@ DEFUN(cfg_trunk_no_patch_rtp,
return CMD_SUCCESS;
}
DEFUN(cfg_trunk_rtp_keepalive,
cfg_trunk_rtp_keepalive_cmd,
"rtp keep-alive <1-120>",
RTP_STR RTP_KEEPALIVE_STR
"Keep-alive interval in secs\n"
)
{
struct mgcp_trunk_config *trunk = vty->index;
mgcp_trunk_set_keepalive(trunk, atoi(argv[0]));
return CMD_SUCCESS;
}
DEFUN(cfg_trunk_rtp_keepalive_once,
cfg_trunk_rtp_keepalive_once_cmd,
"rtp keep-alive once",
RTP_STR RTP_KEEPALIVE_STR
"Send dummy packet only once after CRCX/MDCX\n"
)
{
struct mgcp_trunk_config *trunk = vty->index;
mgcp_trunk_set_keepalive(trunk, MGCP_KEEPALIVE_ONCE);
return CMD_SUCCESS;
}
DEFUN(cfg_trunk_no_rtp_keepalive,
cfg_trunk_no_rtp_keepalive_cmd,
"no rtp keep-alive",
NO_STR RTP_STR RTP_KEEPALIVE_STR
)
{
struct mgcp_trunk_config *trunk = vty->index;
mgcp_trunk_set_keepalive(trunk, 0);
return CMD_SUCCESS;
}
DEFUN(loop_endp,
loop_endp_cmd,
@ -993,6 +1084,9 @@ int mgcp_vty_init(void)
install_element(MGCP_NODE, &cfg_mgcp_rtp_transcoder_base_cmd);
install_element(MGCP_NODE, &cfg_mgcp_rtp_ip_dscp_cmd);
install_element(MGCP_NODE, &cfg_mgcp_rtp_ip_tos_cmd);
install_element(MGCP_NODE, &cfg_mgcp_rtp_keepalive_cmd);
install_element(MGCP_NODE, &cfg_mgcp_rtp_keepalive_once_cmd);
install_element(MGCP_NODE, &cfg_mgcp_no_rtp_keepalive_cmd);
install_element(MGCP_NODE, &cfg_mgcp_agent_addr_cmd);
install_element(MGCP_NODE, &cfg_mgcp_agent_addr_cmd_old);
install_element(MGCP_NODE, &cfg_mgcp_transcoder_cmd);
@ -1018,6 +1112,9 @@ int mgcp_vty_init(void)
install_element(MGCP_NODE, &cfg_mgcp_trunk_cmd);
install_node(&trunk_node, config_write_trunk);
vty_install_default(TRUNK_NODE);
install_element(TRUNK_NODE, &cfg_trunk_rtp_keepalive_cmd);
install_element(TRUNK_NODE, &cfg_trunk_rtp_keepalive_once_cmd);
install_element(TRUNK_NODE, &cfg_trunk_no_rtp_keepalive_cmd);
install_element(TRUNK_NODE, &cfg_trunk_payload_number_cmd);
install_element(TRUNK_NODE, &cfg_trunk_payload_name_cmd);
install_element(TRUNK_NODE, &cfg_trunk_payload_number_cmd_old);

10
openbsc/src/osmo-bsc_mgcp/mgcp_main.c
View file

@ -137,15 +137,6 @@ static int mgcp_rsip_cb(struct mgcp_trunk_config *tcfg)
return 0;
}
static int mgcp_change_cb(struct mgcp_trunk_config *cfg, int endpoint, int state)
{
if (state != MGCP_ENDP_MDCX)
return 0;
mgcp_send_dummy(&cfg->endpoints[endpoint]);
return 0;
}
static int read_call_agent(struct osmo_fd *fd, unsigned int what)
{
struct sockaddr_in addr;
@ -233,7 +224,6 @@ int main(int argc, char **argv)
/* set some callbacks */
cfg->reset_cb = mgcp_rsip_cb;
cfg->change_cb = mgcp_change_cb;
/* we need to bind a socket */
if (rc == 0) {

3
openbsc/tests/mgcp/Makefile.am
View file

@ -11,4 +11,5 @@ mgcp_test_SOURCES = mgcp_test.c
mgcp_test_LDADD = $(top_builddir)/src/libbsc/libbsc.a \
$(top_builddir)/src/libmgcp/libmgcp.a \
$(top_builddir)/src/libcommon/libcommon.a \
$(LIBOSMOCORE_LIBS) -lrt $(LIBOSMOSCCP_LIBS) $(LIBOSMOVTY_LIBS)
$(LIBOSMOCORE_LIBS) -lrt $(LIBOSMOSCCP_LIBS) $(LIBOSMOVTY_LIBS) \
$(LIBRARY_DL)

72
openbsc/tests/mgcp/mgcp_test.c
View file

@ -16,6 +16,8 @@
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#undef _GNU_SOURCE
#define _GNU_SOURCE
#include <openbsc/mgcp.h>
#include <openbsc/mgcp_internal.h>
@ -24,6 +26,7 @@
#include <osmocom/core/talloc.h>
#include <string.h>
#include <limits.h>
#include <dlfcn.h>
char *strline_r(char *str, char **saveptr);
@ -84,6 +87,7 @@ static void test_strline(void)
"a=rtpmap:126 AMR/8000\r\n" \
"a=ptime:20\r\n"
#define MDCX4 "MDCX 18983216 1@mgw MGCP 1.0\r\n" \
"M: sendrecv\r" \
"C: 2\r\n" \
"I: 1\r\n" \
"L: p:20, a:AMR, nt:IN\r\n" \
@ -107,6 +111,7 @@ static void test_strline(void)
"a=ptime:20\r\n"
#define MDCX4_PT1 "MDCX 18983217 1@mgw MGCP 1.0\r\n" \
"M: sendrecv\r" \
"C: 2\r\n" \
"I: 1\r\n" \
"L: p:20-40, a:AMR, nt:IN\r\n" \
@ -120,6 +125,7 @@ static void test_strline(void)
"a=ptime:40\r\n"
#define MDCX4_PT2 "MDCX 18983218 1@mgw MGCP 1.0\r\n" \
"M: sendrecv\r" \
"C: 2\r\n" \
"I: 1\r\n" \
"L: p:20-20, a:AMR, nt:IN\r\n" \
@ -133,6 +139,7 @@ static void test_strline(void)
"a=ptime:40\r\n"
#define MDCX4_PT3 "MDCX 18983219 1@mgw MGCP 1.0\r\n" \
"M: sendrecv\r" \
"C: 2\r\n" \
"I: 1\r\n" \
"L: a:AMR, nt:IN\r\n" \
@ -145,6 +152,20 @@ static void test_strline(void)
"a=rtpmap:99 AMR/8000\r\n" \
"a=ptime:40\r\n"
#define MDCX4_SO "MDCX 18983220 1@mgw MGCP 1.0\r\n" \
"M: sendonly\r" \
"C: 2\r\n" \
"I: 1\r\n" \
"L: p:20, a:AMR, nt:IN\r\n" \
"\n" \
"v=0\r\n" \
"o=- 1 23 IN IP4 0.0.0.0\r\n" \
"c=IN IP4 0.0.0.0\r\n" \
"t=0 0\r\n" \
"m=audio 4441 RTP/AVP 99\r\n" \
"a=rtpmap:99 AMR/8000\r\n" \
"a=ptime:40\r\n"
#define SHORT2 "CRCX 1"
#define SHORT2_RET "510 000000 FAIL\r\n"
#define SHORT3 "CRCX 1 1@mgw"
@ -152,7 +173,7 @@ static void test_strline(void)
#define SHORT5 "CRCX 1 1@mgw MGCP 1.0"
#define CRCX "CRCX 2 1@mgw MGCP 1.0\r\n" \
"M: sendrecv\r\n" \
"M: recvonly\r\n" \
"C: 2\r\n" \
"L: p:20\r\n" \
"\r\n" \
@ -174,7 +195,7 @@ static void test_strline(void)
"a=ptime:20\r\n"
#define CRCX_ZYN "CRCX 2 1@mgw MGCP 1.0\r" \
"M: sendrecv\r" \
"M: recvonly\r" \
"C: 2\r\r" \
"v=0\r" \
"c=IN IP4 123.12.12.123\r" \
@ -233,6 +254,7 @@ static const struct mgcp_test tests[] = {
{ "MDCX4_PT1", MDCX4_PT1, MDCX4_RET("18983217"), 99, 126 },
{ "MDCX4_PT2", MDCX4_PT2, MDCX4_RET("18983218"), 99, 126 },
{ "MDCX4_PT3", MDCX4_PT3, MDCX4_RET("18983219"), 99, 126 },
{ "MDCX4_SO", MDCX4_SO, MDCX4_RET("18983220"), 99, 126 },
{ "DLCX", DLCX, DLCX_RET, -1, -1 },
{ "CRCX_ZYN", CRCX_ZYN, CRCX_ZYN_RET, 97, 126 },
{ "EMPTY", EMPTY, EMPTY_RET },
@ -274,6 +296,31 @@ static int mgcp_test_policy_cb(struct mgcp_trunk_config *cfg, int endpoint,
return MGCP_POLICY_CONT;
}
#define MGCP_DUMMY_LOAD 0x23
static int dummy_packets = 0;
/* override and forward */
ssize_t sendto(int sockfd, const void *buf, size_t len, int flags,
const struct sockaddr *dest_addr, socklen_t addrlen)
{
typedef ssize_t (*sendto_t)(int, const void *, size_t, int,
const struct sockaddr *, socklen_t);
static sendto_t real_sendto = NULL;
uint32_t dest_host = htonl(((struct sockaddr_in *)dest_addr)->sin_addr.s_addr);
int dest_port = htons(((struct sockaddr_in *)dest_addr)->sin_port);
if (!real_sendto)
real_sendto = dlsym(RTLD_NEXT, "sendto");
if (len == 1 && ((const char *)buf)[0] == MGCP_DUMMY_LOAD ) {
fprintf(stderr, "Dummy packet to 0x%08x:%d, msg length %d\n%s\n\n",
dest_host, dest_port,
len, osmo_hexdump(buf, len));
dummy_packets += 1;
}
return real_sendto(sockfd, buf, len, flags, dest_addr, addrlen);
}
static void test_messages(void)
{
struct mgcp_config *cfg;
@ -294,6 +341,9 @@ static void test_messages(void)
endp = &cfg->trunk.endpoints[i];
endp->net_end.payload_type = PTYPE_NONE;
endp->net_end.packet_duration_ms = -1;
endp->bts_end.output_enabled = 0;
endp->net_end.output_enabled = 0;
endp->conn_mode = -1;
}
for (i = 0; i < ARRAY_SIZE(tests); i++) {
@ -304,6 +354,7 @@ static void test_messages(void)
printf("Testing %s\n", t->name);
last_endpoint = -1;
dummy_packets = 0;
inp = create_msg(t->req);
msg = mgcp_handle_message(cfg, inp);
@ -315,6 +366,9 @@ static void test_messages(void)
printf("%s failed '%s'\n", t->name, (char *) msg->data);
msgb_free(msg);
if (dummy_packets)
printf("Dummy packets: %d\n", dummy_packets);
if (last_endpoint != -1) {
endp = &cfg->trunk.endpoints[last_endpoint];
@ -332,7 +386,21 @@ static void test_messages(void)
else
printf("Requested packetization period not set\n");
if (endp->conn_mode != -1)
printf("Connection mode: %d, "
"BTS output %sabled, NET output %sabled\n",
endp->conn_mode,
endp->bts_end.output_enabled ? "en" : "dis",
endp->net_end.output_enabled ? "en" : "dis");
else
printf("Connection mode not set\n");
endp->net_end.packet_duration_ms = -1;
endp->bts_end.output_enabled = 0;
endp->net_end.output_enabled = 0;
endp->local_options.pkt_period_min = 0;
endp->local_options.pkt_period_max = 0;
endp->conn_mode = -1;
}

19
openbsc/tests/mgcp/mgcp_test.ok
View file

@ -16,29 +16,47 @@ Testing AUEP2
Testing MDCX1
Testing MDCX2
Testing CRCX
Dummy packets: 1
Detected packet duration: 40
Requested packetetization period: 20-20
Connection mode: 1, BTS output enabled, NET output disabled
Testing MDCX3
Packet duration not set
Requested packetization period not set
Connection mode not set
Testing MDCX4
Dummy packets: 1
Detected packet duration: 40
Requested packetetization period: 20-20
Connection mode: 3, BTS output enabled, NET output enabled
Testing MDCX4_PT1
Dummy packets: 1
Detected packet duration: 40
Requested packetetization period: 20-40
Connection mode: 3, BTS output enabled, NET output enabled
Testing MDCX4_PT2
Dummy packets: 1
Detected packet duration: 40
Requested packetetization period: 20-20
Connection mode: 3, BTS output enabled, NET output enabled
Testing MDCX4_PT3
Dummy packets: 1
Detected packet duration: 40
Requested packetization period not set
Connection mode: 3, BTS output enabled, NET output enabled
Testing MDCX4_SO
Detected packet duration: 40
Requested packetetization period: 20-20
Connection mode: 2, BTS output disabled, NET output enabled
Testing DLCX
Detected packet duration: 20
Requested packetization period not set
Connection mode: 0, BTS output enabled, NET output enabled
Testing CRCX_ZYN
Dummy packets: 1
Packet duration not set
Requested packetization period not set
Connection mode: 1, BTS output enabled, NET output disabled
Testing EMPTY
Testing SHORT1
Testing SHORT2
@ -49,6 +67,7 @@ Testing RQNT2
Testing DLCX
Detected packet duration: 20
Requested packetization period not set
Connection mode: 0, BTS output enabled, NET output enabled
Testing CRCX
Re-transmitting CRCX
Testing RQNT1