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* [PATCH 2/2] NFSV4 Ipv6 server support
@ 2008-09-16  9:32 Le Rouzic
  0 siblings, 0 replies; only message in thread
From: Le Rouzic @ 2008-09-16  9:32 UTC (permalink / raw)
  To: J. Bruce Fields; +Cc: Linux NFS Mailing list, nfsv4

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 NFSV4 IPV6: Enable daemons server to listen on AF_INET6 sockets when IPv6 support available
 NFSV4 IPV6: Adds AF_INET6 domain processing when AF_INET processing only available

 ---

 fs/lockd/svc.c       |   10 ++++++++++
 fs/nfs/callback.c    |   12 ++++++++++++
 fs/nfsd/nfsctl.c     |   41 +++++++++++++++++++++++++++++++----------
 fs/nfsd/nfssvc.c     |   11 +++++++++++
 net/sunrpc/svcsock.c |    3 ++-
 5 files changed, 66 insertions(+), 11 deletions(-)

 Signed-off-by: Aime Le Rouzic <aime.le-rouzic@bull.net>
---
diff -Nru rpcbindv4/fs/lockd/svc.c ipv6overrpcbindv4/fs/lockd/svc.c
--- rpcbindv4/fs/lockd/svc.c	2008-09-15 14:36:40.000000000 +0200
+++ ipv6overrpcbindv4/fs/lockd/svc.c	2008-09-15 15:12:29.000000000 +0200
@@ -266,7 +266,17 @@
 			"lockd_up: no pid, %d users??\n", nlmsvc_users);
 
 	error = -ENOMEM;
+
+	/*
+	 * If the kernel has IPv6 support available, always listen for
+	 * both AF_INET and AF_INET6 requests.
+	 */
+	#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+	serv = svc_create(&nlmsvc_program, LOCKD_BUFSIZE, AF_INET6, NULL);
+	#else
 	serv = svc_create(&nlmsvc_program, LOCKD_BUFSIZE, AF_INET, NULL);
+	#endif
+
 	if (!serv) {
 		printk(KERN_WARNING "lockd_up: create service failed\n");
 		goto out;
diff -Nru rpcbindv4/fs/nfs/callback.c ipv6overrpcbindv4/fs/nfs/callback.c
--- rpcbindv4/fs/nfs/callback.c	2008-09-15 14:35:48.000000000 +0200
+++ ipv6overrpcbindv4/fs/nfs/callback.c	2008-09-15 15:30:16.000000000 +0200
@@ -105,8 +105,20 @@
 	mutex_lock(&nfs_callback_mutex);
 	if (nfs_callback_info.users++ || nfs_callback_info.task != NULL)
 		goto out;
+
+	/*
+	 * If the kernel has IPv6 support available, always listen for
+	 * both AF_INET and AF_INET6 requests.
+	 */
+	#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+	serv = svc_create(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE,
+				AF_INET6, NULL);
+	#else
 	serv = svc_create(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE,
 				AF_INET, NULL);
+	#endif
+
+
 	ret = -ENOMEM;
 	if (!serv)
 		goto out_err;
diff -Nru rpcbindv4/fs/nfsd/nfsctl.c ipv6overrpcbindv4/fs/nfsd/nfsctl.c
--- rpcbindv4/fs/nfsd/nfsctl.c	2008-09-15 14:50:09.000000000 +0200
+++ ipv6overrpcbindv4/fs/nfsd/nfsctl.c	2008-09-15 15:18:24.000000000 +0200
@@ -230,6 +230,7 @@
 {
 	struct nfsctl_fsparm *data;
 	struct sockaddr_in *sin;
+	struct sockaddr_in6 *sin6;
 	struct auth_domain *clp;
 	int err = 0;
 	struct knfsd_fh *res;
@@ -239,9 +240,19 @@
 		return -EINVAL;
 	data = (struct nfsctl_fsparm*)buf;
 	err = -EPROTONOSUPPORT;
-	if (data->gd_addr.sa_family != AF_INET)
+	switch (data->gd_addr.sa_family) {
+	case AF_INET:
+		sin = (struct sockaddr_in *)&data->gd_addr;
+		ipv6_addr_set_v4mapped(sin->sin_addr.s_addr, &in6);
+		break;
+	case AF_INET6:
+		sin6 = (struct sockaddr_in6 *)&data->gd_addr;
+		ipv6_addr_copy(&in6, &sin6->sin6_addr); 
+		break;
+	default:
 		goto out;
-	sin = (struct sockaddr_in *)&data->gd_addr;
+	}
+
 	if (data->gd_maxlen > NFS3_FHSIZE)
 		data->gd_maxlen = NFS3_FHSIZE;
 
@@ -249,8 +260,6 @@
 
 	exp_readlock();
 
-	ipv6_addr_set_v4mapped(sin->sin_addr.s_addr, &in6);
-
 	clp = auth_unix_lookup(&in6);
 	if (!clp)
 		err = -EPERM;
@@ -269,6 +278,7 @@
 {
 	struct nfsctl_fdparm *data;
 	struct sockaddr_in *sin;
+	struct sockaddr_in6 *sin6;
 	struct auth_domain *clp;
 	int err = 0;
 	struct knfsd_fh fh;
@@ -279,20 +289,31 @@
 		return -EINVAL;
 	data = (struct nfsctl_fdparm*)buf;
 	err = -EPROTONOSUPPORT;
-	if (data->gd_addr.sa_family != AF_INET)
+	if (data->gd_addr.sa_family != AF_INET &&
+	    data->gd_addr.sa_family != AF_INET6)
 		goto out;
+
 	err = -EINVAL;
 	if (data->gd_version < 2 || data->gd_version > NFSSVC_MAXVERS)
 		goto out;
 
 	res = buf;
-	sin = (struct sockaddr_in *)&data->gd_addr;
 	exp_readlock();
 
-	ipv6_addr_set_v4mapped(sin->sin_addr.s_addr, &in6);
+	switch (data->gd_addr.sa_family) {
+	case AF_INET:
+		sin = (struct sockaddr_in *)&data->gd_addr;
+		ipv6_addr_set_v4mapped(sin->sin_addr.s_addr, &in6);
+		break;
+	case AF_INET6:
+		sin6 = (struct sockaddr_in6 *)&data->gd_addr;
+		ipv6_addr_copy(&in6, &sin6->sin6_addr);
+		break;
+	default:
+		goto out;
+	}
 
-	clp = auth_unix_lookup(&in6);
-	if (!clp)
+	if (!(clp = auth_unix_lookup(&in6)))
 		err = -EPERM;
 	else {
 		err = exp_rootfh(clp, data->gd_path, &fh, NFS_FHSIZE);
@@ -305,7 +326,7 @@
 		memcpy(res, &fh.fh_base, fh.fh_size);
 		err = NFS_FHSIZE;
 	}
- out:
+out:
 	return err;
 }
 
diff -Nru rpcbindv4/fs/nfsd/nfssvc.c ipv6overrpcbindv4/fs/nfsd/nfssvc.c
--- rpcbindv4/fs/nfsd/nfssvc.c	2008-09-15 14:37:22.000000000 +0200
+++ ipv6overrpcbindv4/fs/nfsd/nfssvc.c	2008-09-15 14:54:58.000000000 +0200
@@ -228,9 +228,20 @@
 	}
 
 	atomic_set(&nfsd_busy, 0);
+	/*
+	 * If the kernel has IPv6 support available, always listen for
+	 * both AF_INET and AF_INET6 requests.
+	 */
+	#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+	nfsd_serv = svc_create_pooled(&nfsd_program, nfsd_max_blksize,
+                                      AF_INET6, nfsd_last_thread,
+                                      nfsd, THIS_MODULE);
+
+	#else
 	nfsd_serv = svc_create_pooled(&nfsd_program, nfsd_max_blksize,
 				      AF_INET, nfsd_last_thread,
 				      nfsd, THIS_MODULE);
+	#endif
 	if (nfsd_serv == NULL)
 		err = -ENOMEM;
 
diff -Nru rpcbindv4/net/sunrpc/svcsock.c ipv6overrpcbindv4/net/sunrpc/svcsock.c
--- rpcbindv4/net/sunrpc/svcsock.c	2008-09-15 14:42:16.000000000 +0200
+++ ipv6overrpcbindv4/net/sunrpc/svcsock.c	2008-09-15 15:34:47.000000000 +0200
@@ -1176,8 +1176,9 @@
 
 	if (!so)
 		return err;
-	if (so->sk->sk_family != AF_INET)
+	if ((so->sk->sk_family != AF_INET) && (so->sk->sk_family != AF_INET6)) {
 		err =  -EAFNOSUPPORT;
+	}
 	else if (so->sk->sk_protocol != IPPROTO_TCP &&
 	    so->sk->sk_protocol != IPPROTO_UDP)
 		err =  -EPROTONOSUPPORT;

-- 
-----------------------------------------------------------------
Company : Bull, Architect of an Open World TM (www.bull.com)
Name    : Aime Le Rouzic 
Mail    : Bull - BP 208 - 38432 Echirolles Cedex - France
E-Mail  : aime.le-rouzic@bull.net
Phone   : 33 (4) 76.29.75.51
Fax     : 33 (4) 76.29.75.18
----------------------------------------------------------------- 

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