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-rw-r--r--openbsc/src/osmo-bsc_nat/Makefile.am5
-rw-r--r--openbsc/src/osmo-bsc_nat/bsc_mgcp_utils.c32
-rw-r--r--openbsc/src/osmo-bsc_nat/bsc_nat_vty.c19
3 files changed, 44 insertions, 12 deletions
diff --git a/openbsc/src/osmo-bsc_nat/Makefile.am b/openbsc/src/osmo-bsc_nat/Makefile.am
index aae6d6966..c9ea3e9a3 100644
--- a/openbsc/src/osmo-bsc_nat/Makefile.am
+++ b/openbsc/src/osmo-bsc_nat/Makefile.am
@@ -1,5 +1,5 @@
AM_CPPFLAGS = $(all_includes) -I$(top_srcdir)/include -I$(top_builddir)
-AM_CFLAGS=-Wall $(LIBOSMOCORE_CFLAGS) $(LIBOSMOGSM_CFLAGS) $(LIBOSMOVTY_CFLAGS) $(LIBOSMOSCCP_CFLAGS) $(LIBOSMOABIS_CFLAGS) $(COVERAGE_CFLAGS)
+AM_CFLAGS=-Wall $(LIBOSMOCORE_CFLAGS) $(LIBOSMOGSM_CFLAGS) $(LIBOSMOVTY_CFLAGS) $(LIBOSMOSCCP_CFLAGS) $(LIBOSMOABIS_CFLAGS) $(LIBOSMONETIF_CFLAGS) $(COVERAGE_CFLAGS)
AM_LDFLAGS = $(COVERAGE_LDFLAGS)
bin_PROGRAMS = osmo-bsc_nat
@@ -14,4 +14,5 @@ osmo_bsc_nat_LDADD = $(top_builddir)/src/libcommon/libcommon.a \
$(top_builddir)/src/libtrau/libtrau.a \
$(top_builddir)/src/libctrl/libctrl.a \
-lrt $(LIBOSMOSCCP_LIBS) $(LIBOSMOCORE_LIBS) \
- $(LIBOSMOGSM_LIBS) $(LIBOSMOVTY_LIBS) $(LIBOSMOABIS_LIBS)
+ $(LIBOSMOGSM_LIBS) $(LIBOSMOVTY_LIBS) $(LIBOSMOABIS_LIBS) \
+ $(LIBOSMONETIF_LIBS)
diff --git a/openbsc/src/osmo-bsc_nat/bsc_mgcp_utils.c b/openbsc/src/osmo-bsc_nat/bsc_mgcp_utils.c
index 3dad39628..22b8a3504 100644
--- a/openbsc/src/osmo-bsc_nat/bsc_mgcp_utils.c
+++ b/openbsc/src/osmo-bsc_nat/bsc_mgcp_utils.c
@@ -262,12 +262,12 @@ static void bsc_mgcp_send_mdcx(struct bsc_connection *bsc, int port, struct mgcp
int len;
len = snprintf(buf, sizeof(buf),
- "MDCX 23 %x@mgw MGCP 1.0\r\n"
+ "MDCX 23 %x@mgw MGCP 1.0%s\r\n"
"Z: noanswer\r\n"
"\r\n"
"c=IN IP4 %s\r\n"
"m=audio %d RTP/AVP 255\r\n",
- port,
+ port, bsc->cfg->osmux ? "\nX-Osmux: on" : "",
bsc->nat->mgcp_cfg->source_addr,
endp->bts_end.local_port);
if (len < 0) {
@@ -545,6 +545,7 @@ static int bsc_mgcp_policy_cb(struct mgcp_trunk_config *tcfg, int endpoint, int
bsc_msg = bsc_mgcp_rewrite((char *) nat->mgcp_msg, nat->mgcp_length,
sccp->bsc_endp, nat->mgcp_cfg->source_addr,
mgcp_endp->bts_end.local_port,
+ nat->mgcp_cfg->osmux ? sccp->bsc->cfg->osmux : 0,
&mgcp_endp->net_end.payload_type);
if (!bsc_msg) {
LOGP(DMGCP, LOGL_ERROR, "Failed to patch the msg.\n");
@@ -559,6 +560,16 @@ static int bsc_mgcp_policy_cb(struct mgcp_trunk_config *tcfg, int endpoint, int
/* we need to update some bits */
if (state == MGCP_ENDP_CRCX) {
struct sockaddr_in sock;
+ struct mgcp_endpoint *endp = &nat->mgcp_cfg->trunk.endpoints[endpoint];
+
+ if (nat->mgcp_cfg->osmux ? sccp->bsc->cfg->osmux : 0) {
+ if (osmux_enable_endpoint(endp, OSMUX_ROLE_BSC_NAT) < 0) {
+ LOGP(DMGCP, LOGL_ERROR,
+ "Could not activate osmux in endpoint %d\n",
+ ENDPOINT_NUMBER(endp));
+ }
+ }
+
socklen_t len = sizeof(sock);
if (getpeername(sccp->bsc->write_queue.bfd.fd, (struct sockaddr *) &sock, &len) != 0) {
LOGP(DMGCP, LOGL_ERROR, "Can not get the peername...%d/%s\n",
@@ -687,8 +698,8 @@ void bsc_mgcp_forward(struct bsc_connection *bsc, struct msgb *msg)
output = bsc_mgcp_rewrite((char * ) msg->l2h, msgb_l2len(msg), -1,
bsc->nat->mgcp_cfg->source_addr,
endp->net_end.local_port,
+ bsc->nat->mgcp_cfg->osmux ? bsc_endp->bsc->cfg->osmux : 0,
&endp->bts_end.payload_type);
-
if (!output) {
LOGP(DMGCP, LOGL_ERROR, "Failed to rewrite MGCP msg.\n");
return;
@@ -727,7 +738,7 @@ uint32_t bsc_mgcp_extract_ci(const char *str)
* Create a new MGCPCommand based on the input and endpoint from a message
*/
static void patch_mgcp(struct msgb *output, const char *op, const char *tok,
- int endp, int len, int cr)
+ int endp, int len, int cr, int osmux)
{
int slen;
int ret;
@@ -741,14 +752,15 @@ static void patch_mgcp(struct msgb *output, const char *op, const char *tok,
return;
}
- slen = sprintf((char *) output->l3h, "%s %s %x@mgw MGCP 1.0%s",
- op, buf, endp, cr ? "\r\n" : "\n");
+ slen = sprintf((char *) output->l3h, "%s %s %x@mgw MGCP 1.0%s%s",
+ op, buf, endp, osmux ? "\nX-Osmux: on" : "",
+ cr ? "\r\n" : "\n");
output->l3h = msgb_put(output, slen);
}
/* we need to replace some strings... */
struct msgb *bsc_mgcp_rewrite(char *input, int length, int endpoint,
- const char *ip, int port,
+ const char *ip, int port, int osmux,
int *payload_type)
{
static const char crcx_str[] = "CRCX ";
@@ -787,11 +799,11 @@ struct msgb *bsc_mgcp_rewrite(char *input, int length, int endpoint,
cr = len > 0 && token[len - 1] == '\r';
if (strncmp(crcx_str, token, (sizeof crcx_str) - 1) == 0) {
- patch_mgcp(output, "CRCX", token, endpoint, len, cr);
+ patch_mgcp(output, "CRCX", token, endpoint, len, cr, osmux);
} else if (strncmp(dlcx_str, token, (sizeof dlcx_str) - 1) == 0) {
- patch_mgcp(output, "DLCX", token, endpoint, len, cr);
+ patch_mgcp(output, "DLCX", token, endpoint, len, cr, 0);
} else if (strncmp(mdcx_str, token, (sizeof mdcx_str) - 1) == 0) {
- patch_mgcp(output, "MDCX", token, endpoint, len, cr);
+ patch_mgcp(output, "MDCX", token, endpoint, len, cr, osmux);
} else if (strncmp(ip_str, token, (sizeof ip_str) - 1) == 0) {
output->l3h = msgb_put(output, strlen(ip_str));
memcpy(output->l3h, ip_str, strlen(ip_str));
diff --git a/openbsc/src/osmo-bsc_nat/bsc_nat_vty.c b/openbsc/src/osmo-bsc_nat/bsc_nat_vty.c
index 261a194c3..d5903d87e 100644
--- a/openbsc/src/osmo-bsc_nat/bsc_nat_vty.c
+++ b/openbsc/src/osmo-bsc_nat/bsc_nat_vty.c
@@ -172,6 +172,8 @@ static void config_write_bsc_single(struct vty *vty, struct bsc_config *bsc)
if (bsc->paging_group != -1)
vty_out(vty, " paging group %d%s", bsc->paging_group, VTY_NEWLINE);
vty_out(vty, " paging forbidden %d%s", bsc->forbid_paging, VTY_NEWLINE);
+ if (bsc->osmux)
+ vty_out(vty, " osmux on%s", VTY_NEWLINE);
}
static int config_write_bsc(struct vty *vty)
@@ -1175,6 +1177,22 @@ DEFUN(show_ussd_connection,
return CMD_SUCCESS;
}
+#define OSMUX_STR "RTP multiplexing"
+DEFUN(cfg_bsc_osmux,
+ cfg_bsc_osmux_cmd,
+ "osmux (on|off)",
+ OSMUX_STR "Enable OSMUX\n" "Disable OSMUX\n")
+{
+ struct bsc_config *conf = vty->index;
+
+ if (strcmp(argv[0], "on") == 0)
+ conf->osmux = 1;
+ else if (strcmp(argv[0], "off") == 0)
+ conf->osmux = 0;
+
+ return CMD_SUCCESS;
+}
+
int bsc_nat_vty_init(struct bsc_nat *nat)
{
_nat = nat;
@@ -1260,6 +1278,7 @@ int bsc_nat_vty_init(struct bsc_nat *nat)
install_element(NAT_BSC_NODE, &cfg_bsc_old_grp_cmd);
install_element(NAT_BSC_NODE, &cfg_bsc_paging_grp_cmd);
install_element(NAT_BSC_NODE, &cfg_bsc_no_paging_grp_cmd);
+ install_element(NAT_BSC_NODE, &cfg_bsc_osmux_cmd);
mgcp_vty_init();
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-20 01:57:43 +0000