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sip: media-manager: Simplify SDP generation

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Use the newly added get_address_family().
This commit is contained in:
Evangelos Ribeiro Tzaras 2022-10-10 08:54:20 +02:00
parent 8567a93baa
commit 2eda998931
1 changed files with 32 additions and 57 deletions
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89
plugins/provider/sip/calls-sip-media-manager.c
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@ -34,9 +34,7 @@
#include <gio/gio.h>
#include <gst/gst.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
/**
@ -52,9 +50,6 @@
typedef struct _CallsSipMediaManager {
GObject parent;
int address_family;
struct addrinfo hints;
CallsSettings *settings;
GList *preferred_codecs;
GListStore *pipelines;
@ -63,34 +58,6 @@ typedef struct _CallsSipMediaManager {
G_DEFINE_TYPE (CallsSipMediaManager, calls_sip_media_manager, G_TYPE_OBJECT);
static const char *
get_address_family_string (CallsSipMediaManager *self,
const char *ip)
{
struct addrinfo *result = NULL;
const char *family;
if (getaddrinfo (ip, NULL, &self->hints, &result) != 0) {
g_warning ("Cannot parse session IP %s", ip);
return NULL;
}
/* check if IP is IPv4 or IPv6. We need to specify this in the c= line of SDP */
self->address_family = result->ai_family;
if (result->ai_family == AF_INET)
family = "IP4";
else if (result->ai_family == AF_INET6)
family = "IP6";
else
family = NULL;
freeaddrinfo (result);
return family;
}
static void
on_notify_preferred_audio_codecs (CallsSipMediaManager *self)
{
@ -183,10 +150,6 @@ calls_sip_media_manager_init (CallsSipMediaManager *self)
self);
on_notify_preferred_audio_codecs (self);
/* Hints are used with getaddrinfo() when setting the session IP */
self->hints.ai_flags = AI_V4MAPPED | AI_ADDRCONFIG | AI_NUMERICHOST;
self->hints.ai_family = AF_UNSPEC;
self->pipelines = g_list_store_new (CALLS_TYPE_SIP_MEDIA_PIPELINE);
add_new_pipeline (self);
@ -209,6 +172,28 @@ calls_sip_media_manager_default (void)
}
/* helper for calls_sip_media_manager_get_capabilities() */
static char *
get_connection_line (const char *ip)
{
int af_family;
if (STR_IS_NULL_OR_EMPTY(ip))
goto invalid;
af_family = get_address_family_for_ip (ip, TRUE);
if (af_family == AF_UNSPEC)
goto invalid;
return g_strdup_printf ("c=IN %s %s\r\n",
af_family == AF_INET ? "IP4" : "IP6",
ip);
invalid:
return NULL;
}
/* calls_sip_media_manager_get_capabilities:
*
* @self: A #CallsSipMediaManager
@ -231,8 +216,8 @@ calls_sip_media_manager_get_capabilities (CallsSipMediaManager *self,
g_autoptr (GString) media_line = NULL;
g_autoptr (GString) attribute_lines = NULL;
g_autofree char *connection_line = NULL;
GList *node;
const char *address_family_string;
g_return_val_if_fail (CALLS_IS_SIP_MEDIA_MANAGER (self), NULL);
@ -265,7 +250,7 @@ calls_sip_media_manager_get_capabilities (CallsSipMediaManager *self,
calls_srtp_crypto_attribute *attr = node->data;
g_autoptr (GError) error = NULL;
g_autofree char *crypto_line =
calls_srtp_print_sdp_crypto_attribute(attr, &error);
calls_srtp_print_sdp_crypto_attribute (attr, &error);
if (!crypto_line) {
g_warning ("Could not print SDP crypto line for tag %d: %s", attr->tag, error->message);
@ -277,25 +262,15 @@ calls_sip_media_manager_get_capabilities (CallsSipMediaManager *self,
g_string_append_printf (attribute_lines, "a=rtcp:%d\r\n", rtcp_port);
done:
if (own_ip && *own_ip)
address_family_string = get_address_family_string (self, own_ip);
if (own_ip && *own_ip && address_family_string)
return g_strdup_printf ("v=0\r\n"
"c=IN %s %s\r\n"
"%s\r\n"
"%s\r\n",
address_family_string,
own_ip,
media_line->str,
attribute_lines->str);
else
return g_strdup_printf ("v=0\r\n"
"%s\r\n"
"%s\r\n",
media_line->str,
attribute_lines->str);
connection_line = get_connection_line (own_ip);
return g_strdup_printf ("v=0\r\n"
"%s"
"%s\r\n"
"%s\r\n",
connection_line ?: "",
media_line->str,
attribute_lines->str);
}