Opt_cto, Opt_nocto,
Opt_ac, Opt_noac,
Opt_lock, Opt_nolock,
- Opt_v2, Opt_v3,
+ Opt_v2, Opt_v3, Opt_v4,
Opt_udp, Opt_tcp, Opt_rdma,
Opt_acl, Opt_noacl,
Opt_rdirplus, Opt_nordirplus,
{ Opt_nolock, "nolock" },
{ Opt_v2, "v2" },
{ Opt_v3, "v3" },
+ { Opt_v4, "v4" },
{ Opt_udp, "udp" },
{ Opt_tcp, "tcp" },
{ Opt_rdma, "rdma" },
};
enum {
- Opt_xprt_udp, Opt_xprt_tcp, Opt_xprt_rdma,
+ Opt_xprt_udp, Opt_xprt_udp6, Opt_xprt_tcp, Opt_xprt_tcp6, Opt_xprt_rdma,
Opt_xprt_err
};
static const match_table_t nfs_xprt_protocol_tokens = {
{ Opt_xprt_udp, "udp" },
+ { Opt_xprt_udp6, "udp6" },
{ Opt_xprt_tcp, "tcp" },
+ { Opt_xprt_tcp6, "tcp6" },
{ Opt_xprt_rdma, "rdma" },
{ Opt_xprt_err, NULL }
#ifdef CONFIG_NFS_V4
static int nfs4_validate_text_mount_data(void *options,
struct nfs_parsed_mount_data *args, const char *dev_name);
+static int nfs4_try_mount(int flags, const char *dev_name,
+ struct nfs_parsed_mount_data *data, struct vfsmount *mnt);
static int nfs4_get_sb(struct file_system_type *fs_type,
int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt);
static int nfs4_remote_get_sb(struct file_system_type *fs_type,
return sec_flavours[i].str;
}
+static void nfs_show_mountd_netid(struct seq_file *m, struct nfs_server *nfss,
+ int showdefaults)
+{
+ struct sockaddr *sap = (struct sockaddr *) &nfss->mountd_address;
+
+ seq_printf(m, ",mountproto=");
+ switch (sap->sa_family) {
+ case AF_INET:
+ switch (nfss->mountd_protocol) {
+ case IPPROTO_UDP:
+ seq_printf(m, RPCBIND_NETID_UDP);
+ break;
+ case IPPROTO_TCP:
+ seq_printf(m, RPCBIND_NETID_TCP);
+ break;
+ default:
+ if (showdefaults)
+ seq_printf(m, "auto");
+ }
+ break;
+ case AF_INET6:
+ switch (nfss->mountd_protocol) {
+ case IPPROTO_UDP:
+ seq_printf(m, RPCBIND_NETID_UDP6);
+ break;
+ case IPPROTO_TCP:
+ seq_printf(m, RPCBIND_NETID_TCP6);
+ break;
+ default:
+ if (showdefaults)
+ seq_printf(m, "auto");
+ }
+ break;
+ default:
+ if (showdefaults)
+ seq_printf(m, "auto");
+ }
+}
+
static void nfs_show_mountd_options(struct seq_file *m, struct nfs_server *nfss,
int showdefaults)
{
}
case AF_INET6: {
struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sap;
- seq_printf(m, ",mountaddr=%pI6", &sin6->sin6_addr);
+ seq_printf(m, ",mountaddr=%pI6c", &sin6->sin6_addr);
break;
}
default:
if (nfss->mountd_port || showdefaults)
seq_printf(m, ",mountport=%u", nfss->mountd_port);
- switch (nfss->mountd_protocol) {
- case IPPROTO_UDP:
- seq_printf(m, ",mountproto=udp");
- break;
- case IPPROTO_TCP:
- seq_printf(m, ",mountproto=tcp");
- break;
- default:
- if (showdefaults)
- seq_printf(m, ",mountproto=auto");
- }
+ nfs_show_mountd_netid(m, nfss, showdefaults);
}
/*
seq_puts(m, nfs_infop->nostr);
}
seq_printf(m, ",proto=%s",
- rpc_peeraddr2str(nfss->client, RPC_DISPLAY_PROTO));
+ rpc_peeraddr2str(nfss->client, RPC_DISPLAY_NETID));
if (version == 4) {
if (nfss->port != NFS_PORT)
seq_printf(m, ",port=%u", nfss->port);
struct nfs_server *server;
struct rpc_clnt *rpc;
- lock_kernel();
-
server = NFS_SB(sb);
/* -EIO all pending I/O */
rpc = server->client_acl;
rpc = server->client;
if (!IS_ERR(rpc))
rpc_killall_tasks(rpc);
+}
+
+static struct nfs_parsed_mount_data *nfs_alloc_parsed_mount_data(unsigned int version)
+{
+ struct nfs_parsed_mount_data *data;
- unlock_kernel();
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+ if (data) {
+ data->acregmin = NFS_DEF_ACREGMIN;
+ data->acregmax = NFS_DEF_ACREGMAX;
+ data->acdirmin = NFS_DEF_ACDIRMIN;
+ data->acdirmax = NFS_DEF_ACDIRMAX;
+ data->mount_server.port = NFS_UNSPEC_PORT;
+ data->nfs_server.port = NFS_UNSPEC_PORT;
+ data->nfs_server.protocol = XPRT_TRANSPORT_TCP;
+ data->auth_flavors[0] = RPC_AUTH_UNIX;
+ data->auth_flavor_len = 1;
+ data->version = version;
+ data->minorversion = 0;
+ }
+ return data;
}
/*
* Select between a default port value and a user-specified port value.
* If a zero value is set, then autobind will be used.
*/
-static void nfs_set_default_port(struct sockaddr *sap, const int parsed_port,
+static void nfs_set_port(struct sockaddr *sap, int *port,
const unsigned short default_port)
{
- unsigned short port = default_port;
+ if (*port == NFS_UNSPEC_PORT)
+ *port = default_port;
- if (parsed_port != NFS_UNSPEC_PORT)
- port = parsed_port;
-
- rpc_set_port(sap, port);
+ rpc_set_port(sap, *port);
}
/*
{
char *p, *string, *secdata;
int rc, sloppy = 0, invalid_option = 0;
+ unsigned short protofamily = AF_UNSPEC;
+ unsigned short mountfamily = AF_UNSPEC;
if (!raw) {
dfprintk(MOUNT, "NFS: mount options string was NULL.\n");
break;
case Opt_v2:
mnt->flags &= ~NFS_MOUNT_VER3;
+ mnt->version = 2;
break;
case Opt_v3:
mnt->flags |= NFS_MOUNT_VER3;
+ mnt->version = 3;
break;
+#ifdef CONFIG_NFS_V4
+ case Opt_v4:
+ mnt->flags &= ~NFS_MOUNT_VER3;
+ mnt->version = 4;
+ break;
+#endif
case Opt_udp:
mnt->flags &= ~NFS_MOUNT_TCP;
mnt->nfs_server.protocol = XPRT_TRANSPORT_UDP;
switch (option) {
case NFS2_VERSION:
mnt->flags &= ~NFS_MOUNT_VER3;
+ mnt->version = 2;
break;
case NFS3_VERSION:
mnt->flags |= NFS_MOUNT_VER3;
+ mnt->version = 3;
break;
+#ifdef CONFIG_NFS_V4
+ case NFS4_VERSION:
+ mnt->flags &= ~NFS_MOUNT_VER3;
+ mnt->version = 4;
+ break;
+#endif
default:
goto out_invalid_value;
}
token = match_token(string,
nfs_xprt_protocol_tokens, args);
+ protofamily = AF_INET;
switch (token) {
+ case Opt_xprt_udp6:
+ protofamily = AF_INET6;
case Opt_xprt_udp:
mnt->flags &= ~NFS_MOUNT_TCP;
mnt->nfs_server.protocol = XPRT_TRANSPORT_UDP;
kfree(string);
break;
+ case Opt_xprt_tcp6:
+ protofamily = AF_INET6;
case Opt_xprt_tcp:
mnt->flags |= NFS_MOUNT_TCP;
mnt->nfs_server.protocol = XPRT_TRANSPORT_TCP;
default:
dfprintk(MOUNT, "NFS: unrecognized "
"transport protocol\n");
+ kfree(string);
return 0;
}
break;
nfs_xprt_protocol_tokens, args);
kfree(string);
+ mountfamily = AF_INET;
switch (token) {
+ case Opt_xprt_udp6:
+ mountfamily = AF_INET6;
case Opt_xprt_udp:
mnt->mount_server.protocol = XPRT_TRANSPORT_UDP;
break;
+ case Opt_xprt_tcp6:
+ mountfamily = AF_INET6;
case Opt_xprt_tcp:
mnt->mount_server.protocol = XPRT_TRANSPORT_TCP;
break;
if (!sloppy && invalid_option)
return 0;
+ /*
+ * verify that any proto=/mountproto= options match the address
+ * familiies in the addr=/mountaddr= options.
+ */
+ if (protofamily != AF_UNSPEC &&
+ protofamily != mnt->nfs_server.address.ss_family)
+ goto out_proto_mismatch;
+
+ if (mountfamily != AF_UNSPEC) {
+ if (mnt->mount_server.addrlen) {
+ if (mountfamily != mnt->mount_server.address.ss_family)
+ goto out_mountproto_mismatch;
+ } else {
+ if (mountfamily != mnt->nfs_server.address.ss_family)
+ goto out_mountproto_mismatch;
+ }
+ }
+
return 1;
+out_mountproto_mismatch:
+ printk(KERN_INFO "NFS: mount server address does not match mountproto= "
+ "option\n");
+ return 0;
+out_proto_mismatch:
+ printk(KERN_INFO "NFS: server address does not match proto= option\n");
+ return 0;
out_invalid_address:
printk(KERN_INFO "NFS: bad IP address specified: %s\n", p);
return 0;
int status;
if (args->mount_server.version == 0) {
- if (args->flags & NFS_MOUNT_VER3)
- args->mount_server.version = NFS_MNT3_VERSION;
- else
- args->mount_server.version = NFS_MNT_VERSION;
+ switch (args->version) {
+ default:
+ args->mount_server.version = NFS_MNT3_VERSION;
+ break;
+ case 2:
+ args->mount_server.version = NFS_MNT_VERSION;
+ }
}
request.version = args->mount_server.version;
args->mount_server.addrlen = args->nfs_server.addrlen;
}
request.salen = args->mount_server.addrlen;
- nfs_set_default_port(request.sap, args->mount_server.port, 0);
+ nfs_set_port(request.sap, &args->mount_server.port, 0);
/*
* Now ask the mount server to map our export path
if (data == NULL)
goto out_no_data;
- args->flags = (NFS_MOUNT_VER3 | NFS_MOUNT_TCP);
- args->rsize = NFS_MAX_FILE_IO_SIZE;
- args->wsize = NFS_MAX_FILE_IO_SIZE;
- args->acregmin = NFS_DEF_ACREGMIN;
- args->acregmax = NFS_DEF_ACREGMAX;
- args->acdirmin = NFS_DEF_ACDIRMIN;
- args->acdirmax = NFS_DEF_ACDIRMAX;
- args->mount_server.port = NFS_UNSPEC_PORT;
- args->nfs_server.port = NFS_UNSPEC_PORT;
- args->nfs_server.protocol = XPRT_TRANSPORT_TCP;
- args->auth_flavors[0] = RPC_AUTH_UNIX;
- args->auth_flavor_len = 1;
-
switch (data->version) {
case 1:
data->namlen = 0;
if (data->root.size > NFS3_FHSIZE || data->root.size == 0)
goto out_invalid_fh;
mntfh->size = data->root.size;
- } else
+ args->version = 3;
+ } else {
mntfh->size = NFS2_FHSIZE;
+ args->version = 2;
+ }
memcpy(mntfh->data, data->root.data, mntfh->size);
if (!nfs_verify_server_address(sap))
goto out_no_address;
- nfs_set_default_port(sap, args->nfs_server.port, 0);
+ if (args->version == 4)
+#ifdef CONFIG_NFS_V4
+ return nfs4_validate_text_mount_data(options,
+ args, dev_name);
+#else
+ goto out_v4_not_compiled;
+#endif
+
+ nfs_set_port(sap, &args->nfs_server.port, 0);
nfs_set_mount_transport_protocol(args);
}
#ifndef CONFIG_NFS_V3
- if (args->flags & NFS_MOUNT_VER3)
+ if (args->version == 3)
goto out_v3_not_compiled;
#endif /* !CONFIG_NFS_V3 */
return -EPROTONOSUPPORT;
#endif /* !CONFIG_NFS_V3 */
+#ifndef CONFIG_NFS_V4
+out_v4_not_compiled:
+ dfprintk(MOUNT, "NFS: NFSv4 is not compiled into kernel\n");
+ return -EPROTONOSUPPORT;
+#endif /* !CONFIG_NFS_V4 */
+
out_nomem:
dfprintk(MOUNT, "NFS: not enough memory to handle mount options\n");
return -ENOMEM;
data->acdirmin != nfss->acdirmin / HZ ||
data->acdirmax != nfss->acdirmax / HZ ||
data->timeo != (10U * nfss->client->cl_timeout->to_initval / HZ) ||
+ data->nfs_server.port != nfss->port ||
data->nfs_server.addrlen != nfss->nfs_client->cl_addrlen ||
- memcmp(&data->nfs_server.address, &nfss->nfs_client->cl_addr,
- data->nfs_server.addrlen) != 0)
+ !rpc_cmp_addr((struct sockaddr *)&data->nfs_server.address,
+ (struct sockaddr *)&nfss->nfs_client->cl_addr))
return -EINVAL;
return 0;
if (data == NULL)
return -ENOMEM;
- lock_kernel();
/* fill out struct with values from existing mount */
data->flags = nfss->flags;
data->rsize = nfss->rsize;
data->acdirmin = nfss->acdirmin / HZ;
data->acdirmax = nfss->acdirmax / HZ;
data->timeo = 10U * nfss->client->cl_timeout->to_initval / HZ;
+ data->nfs_server.port = nfss->port;
data->nfs_server.addrlen = nfss->nfs_client->cl_addrlen;
memcpy(&data->nfs_server.address, &nfss->nfs_client->cl_addr,
data->nfs_server.addrlen);
error = nfs_compare_remount_data(nfss, data);
out:
kfree(data);
- unlock_kernel();
return error;
}
if (server->flags & NFS_MOUNT_NOAC)
sb->s_flags |= MS_SYNCHRONOUS;
+ sb->s_bdi = &server->backing_dev_info;
+
nfs_super_set_maxbytes(sb, server->maxfilesize);
}
if (data->bsize)
sb->s_blocksize = nfs_block_size(data->bsize, &sb->s_blocksize_bits);
- if (server->flags & NFS_MOUNT_VER3) {
+ if (server->nfs_client->rpc_ops->version == 3) {
/* The VFS shouldn't apply the umask to mode bits. We will do
* so ourselves when necessary.
*/
sb->s_blocksize = old_sb->s_blocksize;
sb->s_maxbytes = old_sb->s_maxbytes;
- if (server->flags & NFS_MOUNT_VER3) {
+ if (server->nfs_client->rpc_ops->version == 3) {
/* The VFS shouldn't apply the umask to mode bits. We will do
* so ourselves when necessary.
*/
};
int error = -ENOMEM;
- data = kzalloc(sizeof(*data), GFP_KERNEL);
+ data = nfs_alloc_parsed_mount_data(3);
mntfh = kzalloc(sizeof(*mntfh), GFP_KERNEL);
if (data == NULL || mntfh == NULL)
goto out_free_fh;
if (error < 0)
goto out;
+#ifdef CONFIG_NFS_V4
+ if (data->version == 4) {
+ error = nfs4_try_mount(flags, dev_name, data, mnt);
+ kfree(data->client_address);
+ goto out;
+ }
+#endif /* CONFIG_NFS_V4 */
+
/* Get a volume representation */
server = nfs_create_server(data, mntfh);
if (IS_ERR(server)) {
if (!s->s_root) {
/* initial superblock/root creation */
nfs_fill_super(s, data);
- nfs_fscache_get_super_cookie(s, data);
+ nfs_fscache_get_super_cookie(
+ s, data ? data->fscache_uniq : NULL, NULL);
}
mntroot = nfs_get_root(s, mntfh);
{
struct nfs_server *server = NFS_SB(s);
- bdi_unregister(&server->backing_dev_info);
kill_anon_super(s);
+ bdi_unregister(&server->backing_dev_info);
nfs_fscache_release_super_cookie(s);
nfs_free_server(server);
}
if (!s->s_root) {
/* initial superblock/root creation */
nfs_clone_super(s, data->sb);
+ nfs_fscache_get_super_cookie(s, NULL, data);
}
mntroot = nfs_get_root(s, data->fh);
{
struct sockaddr *sap = (struct sockaddr *)&args->nfs_server.address;
- nfs_set_default_port(sap, args->nfs_server.port, NFS_PORT);
+ nfs_set_port(sap, &args->nfs_server.port, NFS_PORT);
nfs_validate_transport_protocol(args);
nfs4_validate_mount_flags(args);
+ if (args->version != 4) {
+ dfprintk(MOUNT,
+ "NFS4: Illegal mount version\n");
+ return -EINVAL;
+ }
+
if (args->auth_flavor_len > 1) {
dfprintk(MOUNT,
"NFS4: Too many RPC auth flavours specified\n");
if (data == NULL)
goto out_no_data;
- args->rsize = NFS_MAX_FILE_IO_SIZE;
- args->wsize = NFS_MAX_FILE_IO_SIZE;
- args->acregmin = NFS_DEF_ACREGMIN;
- args->acregmax = NFS_DEF_ACREGMAX;
- args->acdirmin = NFS_DEF_ACDIRMIN;
- args->acdirmax = NFS_DEF_ACDIRMAX;
- args->nfs_server.port = NFS_UNSPEC_PORT;
- args->auth_flavors[0] = RPC_AUTH_UNIX;
- args->auth_flavor_len = 1;
- args->minorversion = 0;
-
switch (data->version) {
case 1:
if (data->host_addrlen > sizeof(args->nfs_server.address))
if (!s->s_root) {
/* initial superblock/root creation */
nfs4_fill_super(s);
- nfs_fscache_get_super_cookie(s, data);
+ nfs_fscache_get_super_cookie(
+ s, data ? data->fscache_uniq : NULL, NULL);
}
mntroot = nfs4_get_root(s, mntfh);
return ret;
}
+static int nfs4_try_mount(int flags, const char *dev_name,
+ struct nfs_parsed_mount_data *data,
+ struct vfsmount *mnt)
+{
+ char *export_path;
+ struct vfsmount *root_mnt;
+ int error;
+
+ dfprintk(MOUNT, "--> nfs4_try_mount()\n");
+
+ export_path = data->nfs_server.export_path;
+ data->nfs_server.export_path = "/";
+ root_mnt = nfs_do_root_mount(&nfs4_remote_fs_type, flags, data,
+ data->nfs_server.hostname);
+ data->nfs_server.export_path = export_path;
+
+ error = PTR_ERR(root_mnt);
+ if (IS_ERR(root_mnt))
+ goto out;
+
+ error = nfs_follow_remote_path(root_mnt, export_path, mnt);
+
+out:
+ dfprintk(MOUNT, "<-- nfs4_try_mount() = %d%s\n", error,
+ error != 0 ? " [error]" : "");
+ return error;
+}
+
/*
* Get the superblock for an NFS4 mountpoint
*/
int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt)
{
struct nfs_parsed_mount_data *data;
- char *export_path;
- struct vfsmount *root_mnt;
int error = -ENOMEM;
- data = kzalloc(sizeof(*data), GFP_KERNEL);
+ data = nfs_alloc_parsed_mount_data(4);
if (data == NULL)
goto out_free_data;
if (error < 0)
goto out;
- export_path = data->nfs_server.export_path;
- data->nfs_server.export_path = "/";
- root_mnt = nfs_do_root_mount(&nfs4_remote_fs_type, flags, data,
- data->nfs_server.hostname);
- data->nfs_server.export_path = export_path;
-
- error = PTR_ERR(root_mnt);
- if (IS_ERR(root_mnt))
- goto out;
-
- error = nfs_follow_remote_path(root_mnt, export_path, mnt);
+ error = nfs4_try_mount(flags, dev_name, data, mnt);
out:
kfree(data->client_address);
dprintk("--> %s\n", __func__);
nfs_super_return_all_delegations(sb);
kill_anon_super(sb);
- nfs4_renewd_prepare_shutdown(server);
nfs_fscache_release_super_cookie(sb);
nfs_free_server(server);
dprintk("<-- %s\n", __func__);
if (!s->s_root) {
/* initial superblock/root creation */
nfs4_clone_super(s, data->sb);
+ nfs_fscache_get_super_cookie(s, NULL, data);
}
mntroot = nfs4_get_root(s, data->fh);
if (!s->s_root) {
/* initial superblock/root creation */
nfs4_fill_super(s);
+ nfs_fscache_get_super_cookie(s, NULL, data);
}
mntroot = nfs4_get_root(s, &mntfh);