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Sat Mar 15 07:00:01 CET 2003

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@645 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Matteo Brancaleoni
2003-03-15 06:00:16 +00:00
parent 2d86a6955c
commit d1b666fc56
2 changed files with 93 additions and 15 deletions
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97
channels/chan_mgcp.c
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@@ -109,6 +109,14 @@ static struct mgcp_pkt {
struct mgcp_pkt *next;
} *packets = NULL;
/* MGCP message for queuing up */
struct mgcp_message {
unsigned int seqno;
int len;
struct mgcp_message *next;
unsigned char buf[0];
};
#define TYPE_TRUNK 1
#define TYPE_LINE 2
@@ -141,6 +149,8 @@ struct mgcp_endpoint {
struct ast_channel *owner;
struct ast_rtp *rtp;
struct sockaddr_in tmpdest;
struct mgcp_message *msgs; /* Message queue */
int messagepending;
struct mgcp_endpoint *next;
struct mgcp_gateway *parent;
};
@@ -194,12 +204,52 @@ static int send_response(struct mgcp_endpoint *p, struct mgcp_request *req)
return res;
}
static int send_request(struct mgcp_endpoint *p, struct mgcp_request *req)
static void dump_queue(struct mgcp_endpoint *p)
{
struct mgcp_message *cur;
while(p->msgs) {
cur = p->msgs;
p->msgs = p->msgs->next;
free(cur);
}
p->messagepending = 0;
p->msgs = NULL;
}
static int mgcp_postrequest(struct mgcp_endpoint *p, unsigned char *data, int len, unsigned int seqno)
{
struct mgcp_message *msg = malloc(sizeof(struct mgcp_message) + len);
struct mgcp_message *cur;
if (!msg)
return -1;
msg->seqno = seqno;
msg->next = NULL;
msg ->len = len;
memcpy(msg->buf, data, msg->len);
cur = p->msgs;
if (cur) {
while(cur->next)
cur = cur->next;
cur->next = msg;
} else
p->msgs = msg;
if (!p->messagepending) {
p->messagepending = 1;
p->lastout = seqno;
__mgcp_xmit(p, msg->buf, msg->len);
/* XXX Should schedule retransmission XXX */
} else
ast_log(LOG_DEBUG, "Deferring transmission of transaction %d\n", seqno);
return 0;
}
static int send_request(struct mgcp_endpoint *p, struct mgcp_request *req, unsigned int seqno)
{
int res;
if (mgcpdebug)
ast_verbose("XXX Need to handle Retransmitting XXX:\n%s to %s:%d\n", req->data, inet_ntoa(p->parent->addr.sin_addr), ntohs(p->parent->addr.sin_port));
res = __mgcp_xmit(p, req->data, req->len);
ast_verbose("Posting Request:\n%s to %s:%d\n", req->data, inet_ntoa(p->parent->addr.sin_addr), ntohs(p->parent->addr.sin_port));
res = mgcp_postrequest(p, req->data, req->len, seqno);
return res;
}
@@ -861,8 +911,7 @@ static int process_sdp(struct mgcp_endpoint *p, struct mgcp_request *req)
sin.sin_family = AF_INET;
memcpy(&sin.sin_addr, hp->h_addr, sizeof(sin.sin_addr));
sin.sin_port = htons(portno);
if (p->rtp)
ast_rtp_set_peer(p->rtp, &sin);
ast_rtp_set_peer(p->rtp, &sin);
#if 0
printf("Peer RTP is at port %s:%d\n", inet_ntoa(sin.sin_addr), ntohs(sin.sin_port));
#endif
@@ -1127,8 +1176,7 @@ static int transmit_modify_with_sdp(struct mgcp_endpoint *p, struct ast_rtp *rtp
add_header(&resp, "I", p->cxident);
add_header(&resp, "S", "");
add_sdp(&resp, p, rtp);
p->lastout = oseq;
return send_request(p, &resp);
return send_request(p, &resp, oseq);
}
static int transmit_connect_with_sdp(struct mgcp_endpoint *p, struct ast_rtp *rtp)
@@ -1151,8 +1199,7 @@ static int transmit_connect_with_sdp(struct mgcp_endpoint *p, struct ast_rtp *rt
add_header(&resp, "X", p->txident);
add_header(&resp, "S", "");
add_sdp(&resp, p, rtp);
p->lastout = oseq;
return send_request(p, &resp);
return send_request(p, &resp, oseq);
}
static int transmit_notify_request(struct mgcp_endpoint *p, char *tone, int offhook)
@@ -1166,7 +1213,7 @@ static int transmit_notify_request(struct mgcp_endpoint *p, char *tone, int offh
else
add_header(&resp, "R", "hd(N)");
add_header(&resp, "S", tone);
return send_request(p, &resp);
return send_request(p, &resp, oseq);
}
static int transmit_notify_request_with_callerid(struct mgcp_endpoint *p, char *tone, int offhook, char *callerid)
@@ -1206,7 +1253,7 @@ static int transmit_notify_request_with_callerid(struct mgcp_endpoint *p, char *
else
add_header(&resp, "R", "hd(N)");
add_header(&resp, "S", tone2);
return send_request(p, &resp);
return send_request(p, &resp, oseq);
}
static int transmit_connection_del(struct mgcp_endpoint *p)
{
@@ -1214,11 +1261,28 @@ static int transmit_connection_del(struct mgcp_endpoint *p)
reqprep(&resp, p, "DLCX");
add_header(&resp, "C", p->callid);
add_header(&resp, "I", p->cxident);
return send_request(p, &resp);
return send_request(p, &resp, oseq);
}
static void handle_response(struct mgcp_endpoint *p, int result, int ident)
{
struct mgcp_message *cur;
if (p->msgs && (p->msgs->seqno == ident)) {
ast_log(LOG_DEBUG, "Got response back on tansaction %d\n", ident);
cur = p->msgs;
p->msgs = p->msgs->next;
free(cur);
if (p->msgs) {
/* Send next pending message if appropriate */
p->messagepending = 1;
p->lastout = p->msgs->seqno;
__mgcp_xmit(p, p->msgs->buf, p->msgs->len);
/* XXX Should schedule retransmission XXX */
} else
p->messagepending = 0;
} else {
ast_log(LOG_NOTICE, "Got response back on transaction %d we aren't sending? (current = %d)\n", ident, p->msgs ? p->msgs->seqno : -1);
}
if ((result >= 400) && (result <= 499)) {
ast_log(LOG_NOTICE, "Terminating on result %d from %s@%s\n", result, p->name, p->parent->name);
if (p->owner)
@@ -1299,6 +1363,7 @@ static int handle_request(struct mgcp_endpoint *p, struct mgcp_request *req, str
ast_verbose("Handling request '%s' on %s@%s\n", req->verb, p->name, p->parent->name);
/* Clear out potential response */
if (!strcasecmp(req->verb, "RSIP")) {
dump_queue(p);
if (option_verbose > 2)
ast_verbose(VERBOSE_PREFIX_3 "Resetting interface %s@%s\n", p->name, p->parent->name);
if (p->owner)
@@ -1413,8 +1478,12 @@ static int mgcpsock_read(int *id, int fd, short events, void *ignore)
}
}
}
if (req.lines)
process_sdp(p, &req);
if (req.lines) {
if (!p->rtp)
start_rtp(p);
if (p->rtp)
process_sdp(p, &req);
}
}
} else {
if (!req.endpoint || !strlen(req.endpoint) ||