cifs: have cifs parse scope_id out of IPv6 addresses and use it

This patch has CIFS look for a '%' in an IPv6 address. If one is
present then it will try to treat that value as a numeric interface
index suitable for stuffing into the sin6_scope_id field.

This should allow people to mount servers on IPv6 link-local addresses.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Acked-by: David Holder <david@erion.co.uk>
Signed-off-by: Steve French <sfrench@us.ibm.com>

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index c368ad6..3fb799f 100644 (file)
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1386,8 +1386,10 @@ cifs_find_tcp_session(struct sockaddr_storage *addr)
                     server->addr.sockAddr.sin_addr.s_addr))
                        continue;
                else if (addr->ss_family == AF_INET6 &&
-                        !ipv6_addr_equal(&server->addr.sockAddr6.sin6_addr,
-                                         &addr6->sin6_addr))
+                        (!ipv6_addr_equal(&server->addr.sockAddr6.sin6_addr,
+                                          &addr6->sin6_addr) ||
+                         server->addr.sockAddr6.sin6_scope_id !=
+                                          addr6->sin6_scope_id))
                        continue;
 
                ++server->srv_count;

diff --cc fs/cifs/dns_resolve.c
Simple merge

diff --cc fs/cifs/netmisc.c
Simple merge