MT#56465 Carry `sdp_origin` via flags to ml init func

In order to be able to set `sdp_origin` related things
while initiating a monologue from flags (so in
`__call_monologue_init_from_flags()` ), duplicate `sdp_origin`
from `sdp_session` while doing streams parsing in `sdp_streams()`.

Change-Id: I17a4400a41623d336590010e9dfc5389460b27be

daemon/call.c

@@ -2638,6 +2638,19 @@ static void __call_monologue_init_from_flags(struct call_monologue *ml, sdp_ng_f
 	ml->sdp_attributes = flags->session_attributes;
 	t_queue_init(&flags->session_attributes);
 
+	/* consume sdp session origin parts (name, version etc.) */
+	{
+		if (!ml->sdp_username && flags->session_sdp_orig.username.len)
+			ml->sdp_username = call_strdup_len(call, flags->session_sdp_orig.username.s,
+						flags->session_sdp_orig.username.len);
+		if (!ml->sdp_session_id && flags->session_sdp_orig.session_id.len)
+			ml->sdp_session_id = str_to_ui(&flags->session_sdp_orig.session_id, 0);
+
+		ml->sdp_version = flags->session_sdp_orig.version_num;
+		if (ml->sdp_version == ULLONG_MAX)
+			ml->sdp_version = (unsigned int)ssl_random();
+	}
+
 	// reset offer ipv4/ipv6/mixed media stats
 	if (flags->opmode == OP_OFFER) {
 		statistics_update_ip46_inc_dec(call, CMC_DECREMENT);

daemon/sdp.c

@@ -71,23 +71,6 @@ enum attr_id {
 // make sure g_int_hash can be used
 static_assert(sizeof(gint) == sizeof(enum attr_id), "sizeof enum attr_id wrong");
 
-struct network_address {
-	str network_type;
-	str address_type;
-	str address;
-	sockaddr_t parsed;
-};
-
-struct sdp_origin {
-	str username;
-	str session_id;
-	str version_str;
-	struct network_address address;
-	unsigned long long version_num;
-	size_t version_output_pos;
-	unsigned int parsed:1;
-};
-
 struct sdp_connection {
 	str s;
 	struct network_address address;
@@ -1806,6 +1789,7 @@ int sdp_streams(const sdp_sessions_q *sessions, sdp_streams_q *streams, sdp_ng_f
 		session = l->data;
 
 		sdp_attr_append_other(&flags->session_attributes, &session->attributes);
+		flags->session_sdp_orig = session->origin;
 
 		for (__auto_type k = session->media_streams.head; k; k = k->next) {
 			media = k->data;

include/call_interfaces.h

@@ -68,7 +68,10 @@ struct sdp_ng_flags {
 	str_q sdes_order;		/* the order, in which crypto suites are being added to the SDP */
 	str_q sdes_offerer_pref;	/* preferred crypto suites to be selected for the offerer */
 	str dtls_fingerprint;
+
+	/* keep session level attributes for internal proper parsing */
 	sdp_attr_q session_attributes;	// top-level (not part of an m= section) SDP session attributes
+	struct sdp_origin session_sdp_orig;
 
 	/* commands to manipulate attr lines in SDP */
 	struct sdp_manipulations * sdp_manipulations[__MT_MAX];

include/sdp.h

@@ -44,6 +44,22 @@ struct sdp_attr {
 	enum sdp_attr_type type;
 };
 
+struct network_address {
+	str network_type;
+	str address_type;
+	str address;
+	sockaddr_t parsed;
+};
+
+struct sdp_origin {
+	str username;
+	str session_id;
+	str version_str;
+	struct network_address address;
+	unsigned long long version_num;
+	size_t version_output_pos;
+	unsigned int parsed:1;
+};
 
 extern const str rtpe_instance_id;