[PATCH] (8/17) ipx -- size_t for send/recvmsg

[Stephen Hemminger <shemminger@xxxxxxxx>]

Convert IPX to unsigned for send/receive message length.
Enforce MTU limited by header pktsize.

diff -Nru a/net/ipx/af_ipx.c b/net/ipx/af_ipx.c
--- a/net/ipx/af_ipx.c  Mon Dec  8 16:19:52 2003
+++ b/net/ipx/af_ipx.c  Mon Dec  8 16:19:52 2003
@@ -1683,7 +1683,7 @@
 }
 
 static int ipx_sendmsg(struct kiocb *iocb, struct socket *sock,
-       struct msghdr *msg, int len)
+       struct msghdr *msg, size_t len)
 {
        struct sock *sk = sock->sk;
        struct ipx_opt *ipxs = ipx_sk(sk);
@@ -1698,6 +1698,10 @@
        if (flags & ~MSG_DONTWAIT)
                goto out;
 
+       /* Max possible packet size limited by 16 bit pktsize in header */
+       if (len >= 65535 - sizeof(struct ipxhdr))
+               goto out;
+
        if (usipx) {
                if (!ipxs->port) {
                        struct sockaddr_ipx uaddr;
@@ -1744,7 +1748,7 @@
 
 
 static int ipx_recvmsg(struct kiocb *iocb, struct socket *sock,
-               struct msghdr *msg, int size, int flags)
+               struct msghdr *msg, size_t size, int flags)
 {
        struct sock *sk = sock->sk;
        struct ipx_opt *ipxs = ipx_sk(sk);
diff -Nru a/net/ipx/ipx_route.c b/net/ipx/ipx_route.c
--- a/net/ipx/ipx_route.c       Mon Dec  8 16:19:52 2003
+++ b/net/ipx/ipx_route.c       Mon Dec  8 16:19:52 2003
@@ -169,13 +169,13 @@
  * Route an outgoing frame from a socket.
  */
 int ipxrtr_route_packet(struct sock *sk, struct sockaddr_ipx *usipx,
-                       struct iovec *iov, int len, int noblock)
+                       struct iovec *iov, size_t len, int noblock)
 {
        struct sk_buff *skb;
        struct ipx_opt *ipxs = ipx_sk(sk);
        struct ipx_interface *intrfc;
        struct ipxhdr *ipx;
-       int size;
+       size_t size;
        int ipx_offset;
        struct ipx_route *rt = NULL;
        int rc;