From: Alan T. DeKok <aland@freeradius.org>
Date: Tue, 17 Mar 2009 16:04:08 +0000 (+0100)
Subject: Added API to allocate a reply packet from a request packet.
X-Git-Tag: release_2_1_7~232
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b6d5b23403f04029df6e9ac77ca6b697be3f5053;p=thirdparty%2Ffreeradius-server.git

Added API to allocate a reply packet from a request packet.

This simplifies the rest of the code, as it now doesn't have to
copy src/dst of packet to dst/src reply.
---

diff --git a/src/include/libradius.h b/src/include/libradius.h
index 0c8230361d9..01712edbc9e 100644
--- a/src/include/libradius.h
+++ b/src/include/libradius.h
@@ -300,6 +300,7 @@ int		rad_sign(RADIUS_PACKET *packet, const RADIUS_PACKET *original,
 			 const char *secret);
 
 RADIUS_PACKET	*rad_alloc(int newvector);
+RADIUS_PACKET	*rad_alloc_reply(RADIUS_PACKET *);
 void		rad_free(RADIUS_PACKET **);
 int		rad_pwencode(char *encpw, size_t *len, const char *secret,
 			     const uint8_t *vector);
diff --git a/src/lib/radius.c b/src/lib/radius.c
index e3bb49d16cf..679e2aeafd4 100644
--- a/src/lib/radius.c
+++ b/src/lib/radius.c
@@ -3447,6 +3447,35 @@ RADIUS_PACKET *rad_alloc(int newvector)
 	return rp;
 }
 
+RADIUS_PACKET *rad_alloc_reply(RADIUS_PACKET *packet)
+{
+	RADIUS_PACKET *reply;
+
+	if (!packet) return NULL;
+
+	reply = rad_alloc(0);
+	if (!reply) return NULL;
+
+	/*
+	 *	Initialize the fields from the request.
+	 */
+	reply->sockfd = packet->sockfd;
+	reply->dst_ipaddr = packet->src_ipaddr;
+	reply->src_ipaddr = packet->dst_ipaddr;
+	reply->dst_port = packet->src_port;
+	reply->src_port = packet->dst_port;
+	reply->id = packet->id;
+	reply->code = 0; /* UNKNOWN code */
+	memcpy(reply->vector, packet->vector,
+	       sizeof(reply->vector));
+	reply->vps = NULL;
+	reply->data = NULL;
+	reply->data_len = 0;
+
+	return reply;
+}
+
+
 /*
  *	Free a RADIUS_PACKET
  */