stun

commit 391a2af72fef061e92580d4bc4680cb05f7df461
parent 190deec3928e9323cf2ee8d7200924a17ddba4f9
Author: sin <sin@2f30.org>
Date:   Thu, 31 Mar 2016 17:27:56 +0100

gcm needs no padding adjust sizes

Diffstat:
M
stun.c
 | 
20
++++++++++----------

1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/stun.c b/stun.c
@@ -79,11 +79,11 @@
 #define NOPRIVUSER	"nobody"
 #define RCVTIMEO	250 /* in milliseconds */
 #define RECONNECTTIMEO	60  /* in seconds */
-#define MTU		1412
+#define MTU		1428
 #define HDRLEN		2
 #define IVLEN		12
 #define TAGLEN		16
-#define MAXPKTLEN	(TAGLEN + IVLEN + HDRLEN + MTU + AES_BLOCK_SIZE)
+#define MAXPKTLEN	(TAGLEN + IVLEN + HDRLEN + MTU)
 #define BADPKT		0x8000
 
 enum {
@@ -464,7 +464,7 @@ readdev(int fd, unsigned char *buf, int len)
 int
 writenet(int fd, unsigned char *pt, int len)
 {
-	unsigned char ct[MTU + AES_BLOCK_SIZE];
+	unsigned char ct[MTU];
 	unsigned char hdr[HDRLEN], iv[IVLEN], tag[TAGLEN];
 	unsigned char pkt[MAXPKTLEN];
 	int pktlen;
@@ -483,7 +483,7 @@ writenet(int fd, unsigned char *pt, int len)
 int
 readnet(int fd, unsigned char *pt, int len)
 {
-	unsigned char ct[MTU + AES_BLOCK_SIZE];
+	unsigned char ct[MTU];
 	unsigned char hdr[HDRLEN], iv[IVLEN], tag[TAGLEN];
 	int n, ctlen;
 
@@ -507,8 +507,8 @@ readnet(int fd, unsigned char *pt, int len)
 	CHECKERR(n);
 
 	ctlen = unpack16(hdr);
-	if (ctlen > MTU + AES_BLOCK_SIZE)
-		ctlen = MTU + AES_BLOCK_SIZE;
+	if (ctlen > MTU)
+		ctlen = MTU;
 
 	n = readall(fd, ct, ctlen);
 	CHECKERR(n);
@@ -523,7 +523,7 @@ readnet(int fd, unsigned char *pt, int len)
 int
 challenge(int netfd)
 {
-	unsigned char buf[MTU + AES_BLOCK_SIZE];
+	unsigned char buf[MTU];
 	struct pollfd pfd[1];
 	uint64_t n, reply;
 	int ret;
@@ -559,7 +559,7 @@ challenge(int netfd)
 int
 response(int netfd)
 {
-	unsigned char buf[MTU + AES_BLOCK_SIZE];
+	unsigned char buf[MTU];
 	uint64_t reply;
 	int ret;
 
@@ -576,7 +576,7 @@ response(int netfd)
 int
 tunnel(int netfd, int devfd)
 {
-	unsigned char buf[MTU + AES_BLOCK_SIZE];
+	unsigned char buf[MTU];
 	struct pollfd pfd[2];
 	int ret, n;
 
@@ -594,7 +594,7 @@ tunnel(int netfd, int devfd)
 			logerr("bad fd in poll set");
 
 		if (pfd[0].revents & (POLLIN | POLLHUP)) {
-			n = readnet(netfd, buf, MTU + AES_BLOCK_SIZE);
+			n = readnet(netfd, buf, MTU);
 			if (n <= 0)
 				return -1;
 			if (n == BADPKT) {