Exemple #1
0
static int trace_send_hep_duplicate(str *body, str *fromproto, str *fromip,
		unsigned short fromport, str *toproto, str *toip, unsigned short toport)
{
	struct proxy_l * p=NULL /* make gcc happy */;
	int ret;
	union sockaddr_union from_su;
	union sockaddr_union to_su;
	unsigned int proto;
	struct socket_info* send_sock;
	union sockaddr_union* to = NULL;

	int heplen;
	char *hepbuf;

	if(body->s==NULL || body->len <= 0)
		return -1;

	if(dup_uri_str.s==0 || dup_uri==NULL)
		return 0;

	/* Convert proto:ip:port to sockaddress union SRC IP */
	if (pipport2su(fromproto, fromip, fromport, &from_su, &proto)==-1 ||
	(pipport2su(toproto, toip, toport, &to_su, &proto)==-1))
		goto error;

	/* check if from and to are in the same family*/
	if(from_su.s.sa_family != to_su.s.sa_family) {
		LM_ERR("ERROR: trace_send_hep_duplicate: interworking detected ?\n");
		goto error;
	}


	/* create a temporary proxy*/
	proto = PROTO_UDP;
	p=mk_proxy(&dup_uri->host, (dup_uri->port_no)?dup_uri->port_no:SIP_PORT,proto, 0);
	if (p==0){
		LM_ERR("bad host name in uri\n");
		return -1;
	}

	to=(union sockaddr_union*)pkg_malloc(sizeof(union sockaddr_union));
	if (to==0){
		LM_ERR("out of pkg memory\n");
		return -1;
	}

	hostent2su(to, &p->host, p->addr_idx, (p->port)?p->port:SIP_PORT);

	if (hep_api.pack_hep(&from_su, to, proto, body->s, body->len,
				&hepbuf, &heplen)) {
		LM_ERR("failed to do hep packing\n");
		return -1;
	}

	ret = -1;

	do {
		send_sock=get_send_socket(0, to, proto);
		if (send_sock==0){
			LM_ERR("can't forward to af %d, proto %d no corresponding listening socket\n",
					to->s.sa_family,proto);
			continue;
		}

		if (msg_send(send_sock, PROTO_HEP, to, 0, hepbuf, heplen, NULL)<0){
			LM_ERR("cannot send duplicate message\n");
			continue;
		}
		ret = 0;
		break;
	}while( get_next_su( p, to, 0)==0 );
	free_proxy(p); /* frees only p content, not p itself */
	pkg_free(p);
	pkg_free(to);
	pkg_free(hepbuf);

	return ret;
error:
	if(p)
	{
		free_proxy(p); /* frees only p content, not p itself */
		pkg_free(p);
	}
	if(to) pkg_free(to);
	return -1;
}
Exemple #2
0
static int trace_send_hep_duplicate(str *body, str *from, str *to, struct dest_info * dst2)
{
	struct dest_info dst;
	struct socket_info *si;
	struct dest_info* dst_fin = NULL;
	struct proxy_l * p=NULL /* make gcc happy */;
	void* buffer = NULL;
	union sockaddr_union from_su;
	union sockaddr_union to_su;
	unsigned int len, buflen, proto;
	struct hep_hdr hdr;
	struct hep_iphdr hep_ipheader;
	struct hep_timehdr hep_time;
	struct timeval tvb;
	struct timezone tz;

	struct hep_ip6hdr hep_ip6header;

	if(body->s==NULL || body->len <= 0)
		return -1;

	if(dup_uri_str.s==0 || dup_uri==NULL)
		return 0;


	gettimeofday( &tvb, &tz );


	/* message length */
	len = body->len 
		+ sizeof(struct hep_ip6hdr)
		+ sizeof(struct hep_hdr) + sizeof(struct hep_timehdr);;


	/* The packet is too big for us */
	if (unlikely(len>BUF_SIZE)){
		goto error;
	}

	/* Convert proto:ip:port to sockaddress union SRC IP */
	if (pipport2su(from->s, &from_su, &proto)==-1 || (pipport2su(to->s, &to_su, &proto)==-1))
		goto error;

	/* check if from and to are in the same family*/
	if(from_su.s.sa_family != to_su.s.sa_family) {
		LM_ERR("interworking detected ?\n");
		goto error;
	}

	if (!dst2){
		init_dest_info(&dst);
		/* create a temporary proxy*/
		dst.proto = PROTO_UDP;
		p=mk_proxy(&dup_uri->host, (dup_uri->port_no)?dup_uri->port_no:SIP_PORT,
				dst.proto);
		if (p==0)
		{
			LM_ERR("bad host name in uri\n");
			goto error;
		}

		hostent2su(&dst.to, &p->host, p->addr_idx, (p->port)?p->port:SIP_PORT);
		LM_DBG("setting up the socket_info\n");
		dst_fin = &dst;
	} else {
		dst_fin = dst2;
	}

	if (force_send_sock_str.s) {
		LM_DBG("force_send_sock activated, grep for the sock_info\n");
		si = grep_sock_info(&force_send_sock_uri->host,
				(force_send_sock_uri->port_no)?force_send_sock_uri->port_no:SIP_PORT,
				PROTO_UDP);
		if (!si) {
			LM_WARN("cannot grep socket info\n");
		} else {
			LM_DBG("found socket while grep: [%.*s] [%.*s]\n", si->name.len, si->name.s, si->address_str.len, si->address_str.s);
			dst_fin->send_sock = si;
		}
	}

	if (dst_fin->send_sock == 0) {
		dst_fin->send_sock=get_send_socket(0, &dst_fin->to, dst_fin->proto);
		if (dst_fin->send_sock == 0) {
			LM_ERR("can't forward to af %d, proto %d no corresponding"
					" listening socket\n", dst_fin->to.s.sa_family, dst_fin->proto);
			goto error;
		}
	}

	/* Version && proto && length */
	hdr.hp_l = sizeof(struct hep_hdr);
	hdr.hp_v = hep_version;
	hdr.hp_p = proto;

	/* AND the last */
	if (from_su.s.sa_family==AF_INET){
		/* prepare the hep headers */

		hdr.hp_f = AF_INET;
		hdr.hp_sport = htons(from_su.sin.sin_port);
		hdr.hp_dport = htons(to_su.sin.sin_port);

		hep_ipheader.hp_src = from_su.sin.sin_addr;
		hep_ipheader.hp_dst = to_su.sin.sin_addr;

		len = sizeof(struct hep_iphdr);
	}
	else if (from_su.s.sa_family==AF_INET6){
		/* prepare the hep6 headers */

		hdr.hp_f = AF_INET6;

		hdr.hp_sport = htons(from_su.sin6.sin6_port);
		hdr.hp_dport = htons(to_su.sin6.sin6_port);

		hep_ip6header.hp6_src = from_su.sin6.sin6_addr;
		hep_ip6header.hp6_dst = to_su.sin6.sin6_addr;

		len = sizeof(struct hep_ip6hdr);
	}
	else {
		LM_ERR("Unsupported protocol family\n");
		goto error;;
	}

	hdr.hp_l +=len;
	if (hep_version == 2){
		len += sizeof(struct hep_timehdr);
	}
	len += sizeof(struct hep_hdr) + body->len;
	buffer = (void *)pkg_malloc(len+1);
	if (buffer==0){
		LM_ERR("out of memory\n");
		goto error;
	}

	/* Copy job */
	memset(buffer, '\0', len+1);

	/* copy hep_hdr */
	memcpy((void*)buffer, &hdr, sizeof(struct hep_hdr));
	buflen = sizeof(struct hep_hdr);

	/* hep_ip_hdr */
	if(from_su.s.sa_family==AF_INET) {
		memcpy((void*)buffer + buflen, &hep_ipheader, sizeof(struct hep_iphdr));
		buflen += sizeof(struct hep_iphdr);
	}
	else {
		memcpy((void*)buffer+buflen, &hep_ip6header, sizeof(struct hep_ip6hdr));
		buflen += sizeof(struct hep_ip6hdr);
	}

	if(hep_version == 2) {

		hep_time.tv_sec = tvb.tv_sec;
		hep_time.tv_usec = tvb.tv_usec;
		hep_time.captid = hep_capture_id;

		memcpy((void*)buffer+buflen, &hep_time, sizeof(struct hep_timehdr));
		buflen += sizeof(struct hep_timehdr);
	}

	/* PAYLOAD */
	memcpy((void*)(buffer + buflen) , (void*)body->s, body->len);
	buflen +=body->len;

	if (msg_send_buffer(dst_fin, buffer, buflen, 1)<0)
	{
		LM_ERR("cannot send hep duplicate message\n");
		goto error;
	}

	if (p) {
		free_proxy(p); /* frees only p content, not p itself */
		pkg_free(p);
	}
	pkg_free(buffer);
	return 0;
error:
	if(p)
	{
		free_proxy(p); /* frees only p content, not p itself */
		pkg_free(p);
	}
	if(buffer) pkg_free(buffer);
	return -1;
}