[PATCH] knfsd: SUNRPC: Support IPv6 addresses in svc_tcp_accept

Modify svc_tcp_accept to support connecting on IPv6 sockets.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 7 insertions, 9 deletions

diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 01e77b8208ce..72831b8a58fb 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -960,7 +960,8 @@ static inline int svc_port_is_privileged(struct sockaddr *sin)
 static void
 svc_tcp_accept(struct svc_sock *svsk)
 {
-        struct sockaddr_in sin;
+        struct sockaddr_storage addr;
+        struct sockaddr *sin = (struct sockaddr *) &addr;
         struct svc_serv *serv = svsk->sk_server;
         struct socket   *sock = svsk->sk_sock;
         struct socket   *newsock;
@@ -987,8 +988,7 @@ svc_tcp_accept(struct svc_sock *svsk)
         set_bit(SK_CONN, &svsk->sk_flags);
         svc_sock_enqueue(svsk);
 
-        slen = sizeof(sin);
-        err = kernel_getpeername(newsock, (struct sockaddr *) &sin, &slen);
+        err = kernel_getpeername(newsock, sin, &slen);
         if (err < 0) {
                 if (net_ratelimit())
                         printk(KERN_WARNING "%s: peername failed (err %d)!\n",
@@ -1000,16 +1000,14 @@ svc_tcp_accept(struct svc_sock *svsk)
          * hosts here, but when we get encryption, the IP of the host won't
          * tell us anything.  For now just warn about unpriv connections.
          */
-        if (!svc_port_is_privileged((struct sockaddr *) &sin)) {
+        if (!svc_port_is_privileged(sin)) {
                 dprintk(KERN_WARNING
                         "%s: connect from unprivileged port: %s\n",
                         serv->sv_name,
-                        __svc_print_addr((struct sockaddr *) &sin, buf,
-                                                                sizeof(buf)));
+                        __svc_print_addr(sin, buf, sizeof(buf)));
         }
         dprintk("%s: connect from %s\n", serv->sv_name,
-                __svc_print_addr((struct sockaddr *) &sin, buf,
-                                 sizeof(buf)));
+                __svc_print_addr(sin, buf, sizeof(buf)));
 
         /* make sure that a write doesn't block forever when
          * low on memory
@@ -1019,7 +1017,7 @@ svc_tcp_accept(struct svc_sock *svsk)
         if (!(newsvsk = svc_setup_socket(serv, newsock, &err,
                                  (SVC_SOCK_ANONYMOUS | SVC_SOCK_TEMPORARY))))
                 goto failed;
-        memcpy(&newsvsk->sk_remote, &sin, slen);
+        memcpy(&newsvsk->sk_remote, sin, slen);
         newsvsk->sk_remotelen = slen;
 
         svc_sock_received(newsvsk);