X-Git-Url: http://andersk.mit.edu/gitweb/openssh.git/blobdiff_plain/762715cee0114dae4b3ec201df5a7e22684dffb8..94d8258be654460322e9c99b35f1b2768e243da1:/packet.c

diff --git a/packet.c b/packet.c
index f5144d10..a5b2ab61 100644
--- a/packet.c
+++ b/packet.c
@@ -37,7 +37,7 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: packet.c,v 1.92 2002/03/19 10:49:35 markus Exp $");
+RCSID("$OpenBSD: packet.c,v 1.96 2002/06/23 21:10:02 deraadt Exp $");
 
 #include "xmalloc.h"
 #include "buffer.h"
@@ -60,6 +60,7 @@ RCSID("$OpenBSD: packet.c,v 1.92 2002/03/19 10:49:35 markus Exp $");
 #include "log.h"
 #include "canohost.h"
 #include "misc.h"
+#include "ssh.h"
 
 #ifdef PACKET_DEBUG
 #define DBG(x) x
@@ -118,6 +119,10 @@ Newkeys *newkeys[MODE_MAX];
 static u_int32_t read_seqnr = 0;
 static u_int32_t send_seqnr = 0;
 
+/* Session key for protocol v1 */
+static u_char ssh1_key[SSH_SESSION_KEY_LENGTH];
+static u_int ssh1_keylen;
+
 /* roundup current message to extra_pad bytes */
 static u_char extra_pad = 0;
 
@@ -263,7 +268,7 @@ packet_set_seqnr(int mode, u_int32_t seqnr)
 	else if (mode == MODE_OUT)
 		send_seqnr = seqnr;
 	else
-		fatal("%s: bad mode %d", __FUNCTION__, mode);
+		fatal("packet_set_seqnr: bad mode %d", mode);
 }
 
 /* returns 1 if connection is via ipv4 */
@@ -277,9 +282,14 @@ packet_connection_is_ipv4(void)
 	memset(&to, 0, sizeof(to));
 	if (getsockname(connection_out, (struct sockaddr *)&to, &tolen) < 0)
 		return 0;
-	if (to.ss_family != AF_INET)
-		return 0;
-	return 1;
+	if (to.ss_family == AF_INET)
+		return 1;
+#ifdef IPV4_IN_IPV6
+	if (to.ss_family == AF_INET6 && 
+	    IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)&to)->sin6_addr))
+		return 1;
+#endif
+	return 0;
 }
 
 /* Sets the connection into non-blocking mode. */
@@ -386,6 +396,7 @@ packet_start_compression(int level)
  * key is used for both sending and reception.  However, both directions are
  * encrypted independently of each other.
  */
+
 void
 packet_set_encryption_key(const u_char *key, u_int keylen,
     int number)
@@ -395,10 +406,23 @@ packet_set_encryption_key(const u_char *key, u_int keylen,
 		fatal("packet_set_encryption_key: unknown cipher number %d", number);
 	if (keylen < 20)
 		fatal("packet_set_encryption_key: keylen too small: %d", keylen);
+	if (keylen > SSH_SESSION_KEY_LENGTH)
+		fatal("packet_set_encryption_key: keylen too big: %d", keylen);
+	memcpy(ssh1_key, key, keylen);
+	ssh1_keylen = keylen;
 	cipher_init(&send_context, cipher, key, keylen, NULL, 0, CIPHER_ENCRYPT);
 	cipher_init(&receive_context, cipher, key, keylen, NULL, 0, CIPHER_DECRYPT);
 }
 
+u_int
+packet_get_encryption_key(u_char *key)
+{
+	if (key == NULL)
+		return (ssh1_keylen);
+	memcpy(key, ssh1_key, ssh1_keylen);
+	return (ssh1_keylen);
+}
+
 /* Start constructing a packet to send. */
 void
 packet_start(u_char type)
@@ -644,7 +668,7 @@ packet_send2(void)
 		/* will wrap if extra_pad+padlen > 255 */
 		extra_pad  = roundup(extra_pad, block_size);
 		pad = extra_pad - ((len + padlen) % extra_pad);
-		debug("packet_send2: adding %d (len %d padlen %d extra_pad %d)",
+		debug3("packet_send2: adding %d (len %d padlen %d extra_pad %d)",
 		    pad, len, padlen, extra_pad);
 		padlen += pad;
 		extra_pad = 0;
@@ -991,7 +1015,7 @@ packet_read_poll2(u_int32_t *seqnr_p)
 int
 packet_read_poll_seqnr(u_int32_t *seqnr_p)
 {
-	int reason, seqnr;
+	u_int reason, seqnr;
 	u_char type;
 	char *msg;
 
@@ -1014,14 +1038,15 @@ packet_read_poll_seqnr(u_int32_t *seqnr_p)
 			case SSH2_MSG_DISCONNECT:
 				reason = packet_get_int();
 				msg = packet_get_string(NULL);
-				log("Received disconnect from %s: %d: %.400s", get_remote_ipaddr(),
-					reason, msg);
+				log("Received disconnect from %s: %u: %.400s",
+				    get_remote_ipaddr(), reason, msg);
 				xfree(msg);
 				fatal_cleanup();
 				break;
 			case SSH2_MSG_UNIMPLEMENTED:
 				seqnr = packet_get_int();
-				debug("Received SSH2_MSG_UNIMPLEMENTED for %d", seqnr);
+				debug("Received SSH2_MSG_UNIMPLEMENTED for %u",
+				    seqnr);
 				break;
 			default:
 				return type;
@@ -1039,8 +1064,8 @@ packet_read_poll_seqnr(u_int32_t *seqnr_p)
 				break;
 			case SSH_MSG_DISCONNECT:
 				msg = packet_get_string(NULL);
-				log("Received disconnect from %s: %.400s", get_remote_ipaddr(),
-					msg);
+				log("Received disconnect from %s: %.400s",
+				    get_remote_ipaddr(), msg);
 				fatal_cleanup();
 				xfree(msg);
 				break;