pespin has uploaded this change for review. (
https://gerrit.osmocom.org/c/osmo-mgw/+/39209?usp=email )
Change subject: mgw: Split conn mode parsing and applying into conn
......................................................................
mgw: Split conn mode parsing and applying into conn
Change-Id: I456843de0be1997802905873c057a83430327f50
---
M include/osmocom/mgcp/mgcp_conn.h
M include/osmocom/mgcp/mgcp_msg.h
M include/osmocom/mgcp/mgcp_protocol.h
M src/libosmo-mgcp/mgcp_conn.c
M src/libosmo-mgcp/mgcp_msg.c
M src/libosmo-mgcp/mgcp_protocol.c
6 files changed, 83 insertions(+), 62 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-mgw refs/changes/09/39209/1
diff --git a/include/osmocom/mgcp/mgcp_conn.h b/include/osmocom/mgcp/mgcp_conn.h
index 106544a..26cdffc 100644
--- a/include/osmocom/mgcp/mgcp_conn.h
+++ b/include/osmocom/mgcp/mgcp_conn.h
@@ -24,6 +24,7 @@
#pragma once
#include <osmocom/mgcp/mgcp.h>
+#include <osmocom/mgcp/mgcp_common.h>
#include <osmocom/mgcp/mgcp_network.h>
#include <osmocom/mgcp/osmux.h>
#include <osmocom/core/linuxlist.h>
@@ -247,6 +248,7 @@
struct mgcp_conn *mgcp_conn_alloc(void *ctx, struct mgcp_endpoint *endp,
enum mgcp_conn_type type, char *name);
void mgcp_conn_free(struct mgcp_conn *conn);
+int mgcp_conn_set_mode(struct mgcp_conn *conn, enum mgcp_connection_mode mode);
char *mgcp_conn_dump(struct mgcp_conn *conn);
struct mgcp_conn *mgcp_find_dst_conn(struct mgcp_conn *conn);
void mgcp_conn_watchdog_kick(struct mgcp_conn *conn);
diff --git a/include/osmocom/mgcp/mgcp_msg.h b/include/osmocom/mgcp/mgcp_msg.h
index 9572d39..d11fb85 100644
--- a/include/osmocom/mgcp/mgcp_msg.h
+++ b/include/osmocom/mgcp/mgcp_msg.h
@@ -27,6 +27,8 @@
#include <stdint.h>
#include <stdbool.h>
+#include <osmocom/mgcp/mgcp_common.h>
+
struct mgcp_conn;
struct mgcp_parse_data;
struct mgcp_endpoint;
@@ -34,8 +36,7 @@
void mgcp_disp_msg(unsigned char *message, unsigned int len, char *preamble);
-int mgcp_parse_conn_mode(const char *msg, struct mgcp_endpoint *endp,
- struct mgcp_conn *conn);
+enum mgcp_connection_mode mgcp_parse_conn_mode(const char *msg);
int mgcp_parse_header(struct mgcp_parse_data *pdata, char *data);
diff --git a/include/osmocom/mgcp/mgcp_protocol.h
b/include/osmocom/mgcp/mgcp_protocol.h
index df134ab..ddb226b 100644
--- a/include/osmocom/mgcp/mgcp_protocol.h
+++ b/include/osmocom/mgcp/mgcp_protocol.h
@@ -1,5 +1,8 @@
#pragma once
+#include <osmocom/core/utils.h>
+#include <osmocom/mgcp/mgcp_common.h>
+
/* Internal structure while parsing a request */
struct mgcp_parse_data {
struct mgcp_config *cfg;
@@ -28,3 +31,9 @@
uint32_t mgcp_rtp_packet_duration(const struct mgcp_endpoint *endp,
const struct mgcp_rtp_end *rtp);
+
+extern const struct value_string mgcp_connection_mode_strs[];
+static inline const char *mgcp_cmode_name(enum mgcp_connection_mode mode)
+{
+ return get_value_string(mgcp_connection_mode_strs, mode);
+}
diff --git a/src/libosmo-mgcp/mgcp_conn.c b/src/libosmo-mgcp/mgcp_conn.c
index 403cbda..b4d971e 100644
--- a/src/libosmo-mgcp/mgcp_conn.c
+++ b/src/libosmo-mgcp/mgcp_conn.c
@@ -263,6 +263,37 @@
talloc_free(conn);
}
+/*! Parse connection mode.
+ * \param[in] conn Connection whose mode is being set
+ * \param[in] mode Mode to set
+ * \returns 0 on success, -1 on error */
+int mgcp_conn_set_mode(struct mgcp_conn *conn, enum mgcp_connection_mode mode)
+{
+ OSMO_ASSERT(conn);
+ if (mode == MGCP_CONN_NONE) {
+ LOGPCONN(conn, DLMGCP, LOGL_ERROR,
+ "missing connection mode\n");
+ return -1;
+ }
+ conn->mode = mode;
+ LOGPCONN(conn, DLMGCP, LOGL_DEBUG, "connection mode '%s' %d\n",
+ mgcp_cmode_name(mode), conn->mode);
+
+ /* Special handling for RTP connections */
+ if (conn->type == MGCP_CONN_TYPE_RTP) {
+ struct mgcp_conn_rtp *conn_rtp = mgcp_conn_get_conn_rtp(conn);
+ conn_rtp->end.output_enabled = !!(conn->mode &
MGCP_CONN_SEND_ONLY);
+ LOGPCONN(conn, DLMGCP, LOGL_DEBUG, "output_enabled %u\n",
+ conn_rtp->end.output_enabled);
+ }
+
+ /* The VTY might change the connection mode at any time, so we have
+ * to hold a copy of the original connection mode */
+ conn->mode_orig = conn->mode;
+
+ return 0;
+}
+
/*! dump basic connection information to human readable string.
* \param[in] conn to dump
* \returns human readable string */
diff --git a/src/libosmo-mgcp/mgcp_msg.c b/src/libosmo-mgcp/mgcp_msg.c
index 2360a0b..f8ef50b 100644
--- a/src/libosmo-mgcp/mgcp_msg.c
+++ b/src/libosmo-mgcp/mgcp_msg.c
@@ -76,57 +76,24 @@
/*! Parse connection mode.
* \param[in] mode as string (recvonly, sendrecv, sendonly confecho or
loopback)
- * \param[in] endp pointer to endpoint (only used for log output)
- * \param[out] associated connection to be modified accordingly
- * \returns 0 on success, -1 on error */
-int mgcp_parse_conn_mode(const char *mode, struct mgcp_endpoint *endp,
- struct mgcp_conn *conn)
+ * \returns MGCP_CONN_* on success, MGCP_CONN_NONE on error */
+enum mgcp_connection_mode mgcp_parse_conn_mode(const char *mode)
{
- int ret = 0;
- if (!mode) {
- LOGPCONN(conn, DLMGCP, LOGL_ERROR,
- "missing connection mode\n");
- return -1;
- }
- if (!conn)
- return -1;
- if (!endp)
- return -1;
+ if (!mode)
+ return MGCP_CONN_NONE;
if (strcasecmp(mode, "recvonly") == 0)
- conn->mode = MGCP_CONN_RECV_ONLY;
- else if (strcasecmp(mode, "sendrecv") == 0)
- conn->mode = MGCP_CONN_RECV_SEND;
- else if (strcasecmp(mode, "sendonly") == 0)
- conn->mode = MGCP_CONN_SEND_ONLY;
- else if (strcasecmp(mode, "confecho") == 0)
- conn->mode = MGCP_CONN_CONFECHO;
- else if (strcasecmp(mode, "loopback") == 0)
- conn->mode = MGCP_CONN_LOOPBACK;
- else {
- LOGPCONN(conn, DLMGCP, LOGL_ERROR,
- "unknown connection mode: '%s'\n", mode);
- ret = -1;
- }
-
- LOGPENDP(endp, DLMGCP, LOGL_DEBUG, "conn:%s\n", mgcp_conn_dump(conn));
- LOGPCONN(conn, DLMGCP, LOGL_DEBUG, "connection mode '%s' %d\n",
- mode, conn->mode);
-
- /* Special handling for RTP connections */
- if (conn->type == MGCP_CONN_TYPE_RTP) {
- struct mgcp_conn_rtp *conn_rtp = mgcp_conn_get_conn_rtp(conn);
- conn_rtp->end.output_enabled = !!(conn->mode &
MGCP_CONN_SEND_ONLY);
- LOGPCONN(conn, DLMGCP, LOGL_DEBUG, "output_enabled %u\n",
- conn_rtp->end.output_enabled);
- }
-
- /* The VTY might change the connection mode at any time, so we have
- * to hold a copy of the original connection mode */
- conn->mode_orig = conn->mode;
-
- return ret;
+ return MGCP_CONN_RECV_ONLY;
+ if (strcasecmp(mode, "sendrecv") == 0)
+ return MGCP_CONN_RECV_SEND;
+ if (strcasecmp(mode, "sendonly") == 0)
+ return MGCP_CONN_SEND_ONLY;
+ if (strcasecmp(mode, "confecho") == 0)
+ return MGCP_CONN_CONFECHO;
+ if (strcasecmp(mode, "loopback") == 0)
+ return MGCP_CONN_LOOPBACK;
+ return MGCP_CONN_NONE;
}
/*! Analyze and parse the the hader of an MGCP messeage string.
diff --git a/src/libosmo-mgcp/mgcp_protocol.c b/src/libosmo-mgcp/mgcp_protocol.c
index 7df2544..6f94f39 100644
--- a/src/libosmo-mgcp/mgcp_protocol.c
+++ b/src/libosmo-mgcp/mgcp_protocol.c
@@ -59,6 +59,16 @@
return debug_last_endpoint_name;
}
+const struct value_string mgcp_connection_mode_strs[] = {
+ { MGCP_CONN_NONE, "none" },
+ { MGCP_CONN_RECV_SEND, "sendrecv" },
+ { MGCP_CONN_SEND_ONLY, "sendonly" },
+ { MGCP_CONN_RECV_ONLY, "recvonly" },
+ { MGCP_CONN_CONFECHO, "confecho" },
+ { MGCP_CONN_LOOPBACK, "loopback" },
+ { 0, NULL }
+};
+
/* A combination of LOGPENDP and LOGPTRUNK that automatically falls back to
* LOGPTRUNK when the endp parameter is NULL */
#define LOGPEPTR(endp, trunk, cat, level, fmt, args...) \
@@ -870,7 +880,7 @@
int error_code = 400;
const char *local_options = NULL;
const char *callid = NULL;
- const char *mode = NULL;
+ enum mgcp_connection_mode mode = MGCP_CONN_NONE;
char *line;
int have_sdp = 0, remote_osmux_cid = -2;
struct mgcp_conn_rtp *conn = NULL;
@@ -922,7 +932,7 @@
return create_err_response(rq->trunk, NULL, 523,
"CRCX", pdata->trans);
break;
case 'M':
- mode = (const char *)line + 3;
+ mode = mgcp_parse_conn_mode((const char *)line + 3);
break;
case 'X':
if (strncasecmp("Osmux: ", line + 2, strlen("Osmux: "))
== 0) {
@@ -959,9 +969,9 @@
return create_err_response(endp, endp, 516, "CRCX",
pdata->trans);
}
- if (!mode) {
+ if (mode == MGCP_CONN_NONE) {
LOGPENDP(endp, DLMGCP, LOGL_ERROR,
- "CRCX: insufficient parameters, missing mode\n");
+ "CRCX: insufficient parameters, invalid mode\n");
rate_ctr_inc(rate_ctr_group_get_ctr(rate_ctrs,
MGCP_CRCX_FAIL_INVALID_MODE));
return create_err_response(endp, endp, 517, "CRCX",
pdata->trans);
}
@@ -1023,15 +1033,15 @@
goto error2;
}
- conn = mgcp_conn_get_conn_rtp(_conn);
- OSMO_ASSERT(conn);
-
- if (mgcp_parse_conn_mode(mode, endp, _conn) != 0) {
+ if (mgcp_conn_set_mode(_conn, mode) < 0) {
error_code = 517;
rate_ctr_inc(rate_ctr_group_get_ctr(rate_ctrs,
MGCP_CRCX_FAIL_INVALID_MODE));
goto error2;
}
+ conn = mgcp_conn_get_conn_rtp(_conn);
+ OSMO_ASSERT(conn);
+
/* If X-Osmux (remote CID) was received (-1 is wilcard), alloc next
avail CID as local CID */
if (remote_osmux_cid >= -1) {
if (osmux_init_conn(conn) < 0) {
@@ -1145,7 +1155,7 @@
int have_sdp = 0;
char *line;
const char *local_options = NULL;
- const char *mode = NULL;
+ enum mgcp_connection_mode mode = MGCP_CONN_NONE;
struct mgcp_conn_rtp *conn = NULL;
const char *conn_id = NULL;
int remote_osmux_cid = -2;
@@ -1204,7 +1214,7 @@
local_options = (const char *)line + 3;
break;
case 'M':
- mode = (const char *)line + 3;
+ mode = mgcp_parse_conn_mode((const char *)line + 3);
break;
case 'X':
if (strncasecmp("Osmux: ", line + 2, strlen("Osmux: "))
== 0) {
@@ -1246,14 +1256,15 @@
mgcp_conn_watchdog_kick(conn->conn);
- if (mode) {
- if (mgcp_parse_conn_mode(mode, endp, conn->conn) != 0) {
+ if (mode != MGCP_CONN_NONE) {
+ if (mgcp_conn_set_mode(conn->conn, mode) < 0) {
rate_ctr_inc(rate_ctr_group_get_ctr(rate_ctrs,
MGCP_MDCX_FAIL_INVALID_MODE));
error_code = 517;
goto error3;
}
- } else
+ } else {
conn->conn->mode = conn->conn->mode_orig;
+ }
/* Set local connection options, if present */
if (local_options) {
--
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Gerrit-MessageType: newchange
Gerrit-Project: osmo-mgw
Gerrit-Branch: master
Gerrit-Change-Id: I456843de0be1997802905873c057a83430327f50
Gerrit-Change-Number: 39209
Gerrit-PatchSet: 1
Gerrit-Owner: pespin <[email protected]>
