From 7077ecbabd626cce1fcf5cc9766c83ec04d919f9 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Fri, 14 Aug 2009 12:57:58 -0400 Subject: [PATCH] nfsd: add support for NFSv4 callbacks over IPv6 The framework to add this is all in place. Now, add the code to allow support for establishing a callback channel on an IPv6 socket. Signed-off-by: Jeff Layton Acked-by: Chuck Lever Signed-off-by: J. Bruce Fields --- fs/nfsd/nfs4state.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 96a742308cee..9ec0ca1ef4ea 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -901,9 +901,16 @@ static void gen_callback(struct nfs4_client *clp, struct nfsd4_setclientid *se) { struct nfs4_cb_conn *cb = &clp->cl_cb_conn; - - /* Currently, we only support tcp for the callback channel */ - if ((se->se_callback_netid_len != 3) || memcmp((char *)se->se_callback_netid_val, "tcp", 3)) + unsigned short expected_family; + + /* Currently, we only support tcp and tcp6 for the callback channel */ + if (se->se_callback_netid_len == 3 && + !memcmp(se->se_callback_netid_val, "tcp", 3)) + expected_family = AF_INET; + else if (se->se_callback_netid_len == 4 && + !memcmp(se->se_callback_netid_val, "tcp6", 4)) + expected_family = AF_INET6; + else goto out_err; cb->cb_addrlen = rpc_uaddr2sockaddr(se->se_callback_addr_val, @@ -911,7 +918,7 @@ gen_callback(struct nfs4_client *clp, struct nfsd4_setclientid *se) (struct sockaddr *) &cb->cb_addr, sizeof(cb->cb_addr)); - if (!cb->cb_addrlen || cb->cb_addr.ss_family != AF_INET) + if (!cb->cb_addrlen || cb->cb_addr.ss_family != expected_family) goto out_err; cb->cb_minorversion = 0; -- 2.11.0