Update mud

.build.sh

@@ -11,5 +11,8 @@ cd ..
 [ -x glorytun ] || exit 1
 
 mkdir -p deploy
+
+cp glorytun deploy/glorytun-$(cat VERSION)-$(uname -m).debug.bin
+
 strip -s glorytun
-mv glorytun deploy/glorytun-$(cat VERSION)-$(uname -m).bin
+cp glorytun deploy/glorytun-$(cat VERSION)-$(uname -m).bin

src/ip.h

@@ -30,7 +30,9 @@ ip_get_common(struct ip_common *ic, const uint8_t *data, size_t size)
         ic->proto = data[9];
         ic->hdr_size = (data[0] & 0xF) << 2;
         ic->size = ((data[2] << 8) | data[3]);
+        if (ic->size >= 20)
             return 0;
+        break;
     case 6:
         ic->tc = ((data[0] & 0xF) << 4) | (data[1] >> 4);
         ic->proto = data[6];

src/main.c

@@ -386,8 +386,7 @@ main(int argc, char **argv)
             size_t size = 0;
 
             while (sizeof(buf) - size >= gt.mtu) {
-                const int r = tun_read(tun_fd, &buf[size],
-                                       sizeof(buf) - size);
+                const int r = tun_read(tun_fd, &buf[size], sizeof(buf) - size);
 
                 if (r <= 0 || r > gt.mtu)
                     break;
@@ -422,7 +421,7 @@ main(int argc, char **argv)
                         tc = ic.tc & 0xFC;
                 }
 
-                if (p == q)
+                if (p >= q)
                     break;
 
                 int r = mud_send(mud, &buf[p], q - p, tc);