Commit cdcd7f9a authored by Chuck Lever's avatar Chuck Lever Committed by Trond Myklebust
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NFS: Verify IPv6 addresses properly 



Add support to nfs_verify_server_address for recognizing AF_INET6
addresses.

Signed-off-by: default avatarChuck Lever <chuck.lever@oracle.com>
Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent fd00a8ff

fs/nfs/super.c

+10 −5
Original line number Diff line number Diff line
@@ -600,16 +600,21 @@ static void nfs_umount_begin(struct vfsmount *vfsmnt, int flags) 
}



/*

 * Sanity-check a server address provided by the mount command

 * Sanity-check a server address provided by the mount command.

 *

 * Address family must be initialized, and address must not be

 * the ANY address for that family.

 */

static int nfs_verify_server_address(struct sockaddr *addr)

{

	switch (addr->sa_family) {

	case AF_INET: {

		struct sockaddr_in *sa = (struct sockaddr_in *)addr;

		if (sa->sin_addr.s_addr != INADDR_ANY)

			return 1;

		break;

		return sa->sin_addr.s_addr != INADDR_ANY;

	}

	case AF_INET6: {

		struct in6_addr *sa = &((struct sockaddr_in6 *)addr)->sin6_addr;

		return !ipv6_addr_any(sa);

	}

	}