From 5839001872ba6afa8fae2db34a01154b9a0c897f Mon Sep 17 00:00:00 2001
From: Daniel-Constantin Mierla <miconda@gmail.com>
Date: Mon, 2 Jan 2017 22:04:34 +0100
Subject: [PATCH] tm: implemented rpc command tm.reply_callid

---
 src/modules/tm/t_reply.c | 72 ++++++++++++++++++++++++++++++++++++++++
 src/modules/tm/t_reply.h | 11 +++---
 src/modules/tm/tm.c      |  6 ++++
 3 files changed, 84 insertions(+), 5 deletions(-)

diff --git a/src/modules/tm/t_reply.c b/src/modules/tm/t_reply.c
index 1abab0913ec..bb44d136c4f 100644
--- a/src/modules/tm/t_reply.c
+++ b/src/modules/tm/t_reply.c
@@ -2740,6 +2740,78 @@ void rpc_reply(rpc_t* rpc, void* c)
 	}
 }
 
+/*
+ * Syntax of "t_reply_callid" :
+ * code
+ * reason
+ * callid
+ * cseq
+ * to_tag
+ * new headers
+ * [Body]
+*/
+void rpc_reply_callid(rpc_t* rpc, void* c)
+{
+	int code;
+	tm_cell_t *trans;
+	str reason = {0, 0};
+	str totag = {0, 0};
+	str hdrs = {0, 0};
+	str body = {0, 0};
+	str callid = {0, 0};
+	str cseq = {0, 0};
+	int n;
+
+	if (rpc->scan(c, "d", &code) < 1) {
+		rpc->fault(c, 400, "Reply code expected");
+		return;
+	}
+
+	if (rpc->scan(c, "S", &reason) < 1) {
+		rpc->fault(c, 400, "Reason phrase expected");
+		return;
+	}
+
+	if (rpc->scan(c, "S", &callid) < 1) {
+		rpc->fault(c, 400, "Call-ID expected");
+		return;
+	}
+
+	if (rpc->scan(c, "S", &cseq) < 1) {
+		rpc->fault(c, 400, "CSeq expected");
+		return;
+	}
+
+	if (rpc->scan(c, "S", &totag) < 1) {
+		rpc->fault(c, 400, "To tag expected");
+		return;
+	}
+
+	if (rpc->scan(c, "S", &hdrs) < 0) {
+		rpc->fault(c, 500, "Read error");
+		return;
+	}
+	if (rpc->scan(c, "S", &body) < 0) {
+		rpc->fault(c, 500, "Read error");
+		return;
+	}
+
+	if(t_lookup_callid( &trans, callid, cseq) < 0 ) {
+		rpc->fault(c, 404, "Transaction not found");
+		return;
+	}
+
+	/* it's refcounted now, t_reply_with body unrefs for me -- I can
+	 * continue but may not use T anymore  */
+	n = t_reply_with_body(trans, code, &reason, &body,
+			&hdrs, &totag);
+
+	if (n<0) {
+		rpc->fault(c, 500, "Reply failed");
+		return;
+	}
+}
+
 /**
  * re-entrant locking of reply mutex
  */
diff --git a/src/modules/tm/t_reply.h b/src/modules/tm/t_reply.h
index 297ca5ba0e2..57501a1c7a3 100644
--- a/src/modules/tm/t_reply.h
+++ b/src/modules/tm/t_reply.h
@@ -13,8 +13,8 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License 
- * along with this program; if not, write to the Free Software 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
@@ -33,7 +33,7 @@
 /* reply processing status */
 enum rps {
 	/* something bad happened */
-	RPS_ERROR=0,	
+	RPS_ERROR=0,
 	/* transaction completed but we still accept the reply */
 	RPS_PUSHED_AFTER_COMPLETION,
 	/* reply discarded */
@@ -161,7 +161,7 @@ typedef int (*run_branch_failure_handlers_f)(struct cell*, struct sip_msg*, int,
 /* Retransmits the last sent inbound reply.
  * Returns  -1 - error
  *           1 - OK
- 
+
  *int t_retransmit_reply(struct sip_msg *);
 */
 
@@ -201,7 +201,7 @@ void on_failure_reply( struct cell* t, struct sip_msg* msg,
 	int code, void *param  );
 
 /* set which 'reply' structure to take if only negative
-   replies arrive 
+   replies arrive
 */
 void t_on_failure( unsigned int go_to );
 unsigned int get_on_failure(void);
@@ -225,6 +225,7 @@ int t_pick_branch_blind(struct cell *t, int *res_code);
 void t_drop_replies(int v);
 
 void rpc_reply(rpc_t* rpc, void* c);
+void rpc_reply_callid(rpc_t* rpc, void* c);
 
 void faked_env( struct cell *t,struct sip_msg *msg, int is_async_env);
 int fake_req(struct sip_msg *faked_req,
diff --git a/src/modules/tm/tm.c b/src/modules/tm/tm.c
index 935d25fc9bf..a223e7efda9 100644
--- a/src/modules/tm/tm.c
+++ b/src/modules/tm/tm.c
@@ -2292,6 +2292,11 @@ static const char* rpc_reply_doc[2] = {
 	0
 };
 
+static const char* rpc_reply_callid_doc[2] = {
+	"Reply transaction by call-id",
+	0
+};
+
 static const char* tm_rpc_stats_doc[2] = {
 	"Print transaction statistics.",
 	0
@@ -2321,6 +2326,7 @@ static const char* rpc_t_uac_wait_doc[2] = {
 static rpc_export_t tm_rpc[] = {
 	{"tm.cancel", rpc_cancel,   rpc_cancel_doc,   0},
 	{"tm.reply",  rpc_reply,    rpc_reply_doc,    0},
+	{"tm.reply_callid", rpc_reply_callid,   rpc_reply_callid_doc,   0},
 	{"tm.stats",  tm_rpc_stats, tm_rpc_stats_doc, 0},
 	{"tm.hash_stats",  tm_rpc_hash_stats, tm_rpc_hash_stats_doc, 0},
 	{"tm.t_uac_start", rpc_t_uac_start, rpc_t_uac_start_doc, 0 },