[sr-dev] git:master: modules/sdpops: added sdp_with_ice() function for checking if sdp
Juha Heinanen
jh at tutpro.com
Mon Apr 28 11:16:55 CEST 2014
Module: sip-router
Branch: master
Commit: d28c4043637169c4e90f638102c1f4dfa06716f2
URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=d28c4043637169c4e90f638102c1f4dfa06716f2
Author: Juha Heinanen <jh at tutpro.com>
Committer: Juha Heinanen <jh at tutpro.com>
Date: Mon Apr 28 12:15:54 2014 +0300
modules/sdpops: added sdp_with_ice() function for checking if sdp
contains ICE candidate attribute(s)
---
modules/sdpops/README | 30 ++++++++++++++++++++++++------
modules/sdpops/doc/sdpops_admin.xml | 21 +++++++++++++++++++++
modules/sdpops/sdpops_mod.c | 34 ++++++++++++++++++++++++++++++++++
3 files changed, 79 insertions(+), 6 deletions(-)
diff --git a/modules/sdpops/README b/modules/sdpops/README
index 9ea8e98..ebad4bd 100644
--- a/modules/sdpops/README
+++ b/modules/sdpops/README
@@ -42,7 +42,8 @@ Daniel-Constantin Mierla
4.14. sdp_print(level)
4.15. sdp_get(avpvar)
4.16. sdp_content()
- 4.17. sdp_get_line_startswith(avpvar, string)
+ 4.17. sdp_with_ice()
+ 4.18. sdp_get_line_startswith(avpvar, string)
List of Examples
@@ -62,7 +63,8 @@ Daniel-Constantin Mierla
1.14. sdp_print usage
1.15. sdp_get usage
1.16. sdp_content usage
- 1.17. sdp_get_line_startswith usage
+ 1.17. sdp_with_ice usage
+ 1.18. sdp_get_line_startswith usage
Chapter 1. Admin Guide
@@ -93,7 +95,8 @@ Chapter 1. Admin Guide
4.14. sdp_print(level)
4.15. sdp_get(avpvar)
4.16. sdp_content()
- 4.17. sdp_get_line_startswith(avpvar, string)
+ 4.17. sdp_with_ice()
+ 4.18. sdp_get_line_startswith(avpvar, string)
1. Overview
@@ -143,7 +146,8 @@ Chapter 1. Admin Guide
4.14. sdp_print(level)
4.15. sdp_get(avpvar)
4.16. sdp_content()
- 4.17. sdp_get_line_startswith(avpvar, string)
+ 4.17. sdp_with_ice()
+ 4.18. sdp_get_line_startswith(avpvar, string)
4.1. sdp_remove_codecs_by_id(list)
@@ -401,7 +405,21 @@ if(sdp_content()) {
}
...
-4.17. sdp_get_line_startswith(avpvar, string)
+4.17. sdp_with_ice()
+
+ Return true if the SIP message has SDP body that contains ICE candidate
+ attribute(s).
+
+ This function can be used from ANY_ROUTE.
+
+ Example 1.17. sdp_with_ice usage
+...
+if(sdp_with_ice()) {
+ ...
+}
+...
+
+4.18. sdp_get_line_startswith(avpvar, string)
Store the search part of SDP body message with line beginning with
'string' in an AVP. Return 1 if 'string' is found in SDP, -1 on error
@@ -409,7 +427,7 @@ if(sdp_content()) {
This function can be used from ANY_ROUTE.
- Example 1.17. sdp_get_line_startswith usage
+ Example 1.18. sdp_get_line_startswith usage
...
if(sdp_get_line_startswith("$avp(mline)", "m=")) {
xlog("m-line: $avp(mline)\n");
diff --git a/modules/sdpops/doc/sdpops_admin.xml b/modules/sdpops/doc/sdpops_admin.xml
index a688bfa..7373b0b 100644
--- a/modules/sdpops/doc/sdpops_admin.xml
+++ b/modules/sdpops/doc/sdpops_admin.xml
@@ -460,6 +460,27 @@ if(sdp_content()) {
</example>
</section>
<section>
+ <title>
+ <function moreinfo="none">sdp_with_ice()</function>
+ </title>
+ <para>
+ Return true if the SIP message has SDP body that contains ICE candidate attribute(s).
+ </para>
+ <para>
+ This function can be used from ANY_ROUTE.
+ </para>
+ <example>
+ <title><function>sdp_with_ice</function> usage</title>
+ <programlisting format="linespecific">
+...
+if(sdp_with_ice()) {
+ ...
+}
+...
+</programlisting>
+ </example>
+ </section>
+ <section>
<title>
<function moreinfo="none">sdp_get_line_startswith(avpvar, string)</function>
</title>
diff --git a/modules/sdpops/sdpops_mod.c b/modules/sdpops/sdpops_mod.c
index 3712311..a8c472f 100644
--- a/modules/sdpops/sdpops_mod.c
+++ b/modules/sdpops/sdpops_mod.c
@@ -58,6 +58,7 @@ static int w_sdp_remove_transport(sip_msg_t* msg, char* transport, char *bar);
static int w_sdp_print(sip_msg_t* msg, char* level, char *bar);
static int w_sdp_get(sip_msg_t* msg, char *bar);
static int w_sdp_content(sip_msg_t* msg, char* foo, char *bar);
+static int w_sdp_with_ice(sip_msg_t* msg, char* foo, char *bar);
static int w_sdp_get_line_startswith(sip_msg_t* msg, char *foo, char *bar);
@@ -100,6 +101,8 @@ static cmd_export_t cmds[] = {
1, 0, 0, ANY_ROUTE},
{"sdp_content", (cmd_function)w_sdp_content,
0, 0, 0, ANY_ROUTE},
+ {"sdp_with_ice", (cmd_function)w_sdp_with_ice,
+ 0, 0, 0, ANY_ROUTE},
{"sdp_get_line_startswith", (cmd_function)w_sdp_get_line_startswith,
2, 0, 0, ANY_ROUTE},
{"bind_sdpops", (cmd_function)bind_sdpops,
@@ -1424,6 +1427,37 @@ static int w_sdp_content(sip_msg_t* msg, char* foo, char *bar)
/**
*
*/
+static int w_sdp_with_ice(sip_msg_t* msg, char* foo, char *bar)
+{
+ str ice, body;
+
+ ice.s = "a=candidate";
+ ice.len = 11;
+
+ body.s = get_body(msg);
+ if (body.s == NULL) {
+ LM_DBG("failed to get the message body\n");
+ return -1;
+ }
+
+ body.len = msg->len -(int)(body.s - msg->buf);
+ if (body.len == 0) {
+ LM_DBG("message body has length zero\n");
+ return -1;
+ }
+
+ if (ser_memmem(body.s, ice.s, body.len, ice.len) != NULL) {
+ LM_INFO("found ice attribute\n");
+ return 1;
+ } else {
+ LM_INFO("did't find ice attribute\n");
+ return -1;
+ }
+}
+
+/**
+ *
+ */
static int w_sdp_get_line_startswith(sip_msg_t *msg, char *avp, char *s_line)
{
sdp_info_t *sdp = NULL;
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