diff options
| -rw-r--r-- | fs/cifs/Makefile | 2 | ||||
| -rw-r--r-- | fs/cifs/cifsfs.c | 1 | ||||
| -rw-r--r-- | fs/cifs/cifsglob.h | 19 | ||||
| -rw-r--r-- | fs/cifs/connect.c | 42 | ||||
| -rw-r--r-- | fs/cifs/smb1ops.c | 27 |
5 files changed, 89 insertions, 2 deletions
diff --git a/fs/cifs/Makefile b/fs/cifs/Makefile index 005d524c3a4a..0fe70258caf0 100644 --- a/fs/cifs/Makefile +++ b/fs/cifs/Makefile @@ -6,7 +6,7 @@ obj-$(CONFIG_CIFS) += cifs.o cifs-y := cifsfs.o cifssmb.o cifs_debug.o connect.o dir.o file.o inode.o \ link.o misc.o netmisc.o smbencrypt.o transport.o asn1.o \ cifs_unicode.o nterr.o xattr.o cifsencrypt.o \ - readdir.o ioctl.o sess.o export.o + readdir.o ioctl.o sess.o export.o smb1ops.o cifs-$(CONFIG_CIFS_ACL) += cifsacl.o diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index f718d5780062..8a6928c4537d 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -354,6 +354,7 @@ cifs_show_options(struct seq_file *s, struct dentry *root) struct sockaddr *srcaddr; srcaddr = (struct sockaddr *)&tcon->ses->server->srcaddr; + seq_printf(s, ",vers=%s", tcon->ses->server->vals->version_string); cifs_show_security(s, tcon->ses->server); cifs_show_cache_flavor(s, cifs_sb); diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index a867d9923d7d..812e22ab0a49 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -150,6 +150,17 @@ struct cifs_cred { ***************************************************************** */ +enum smb_version { + Smb_1 = 1, +}; + +struct smb_version_operations { +}; + +struct smb_version_values { + char *version_string; +}; + struct smb_vol { char *username; char *password; @@ -205,6 +216,8 @@ struct smb_vol { bool sockopt_tcp_nodelay:1; unsigned short int port; unsigned long actimeo; /* attribute cache timeout (jiffies) */ + struct smb_version_operations *ops; + struct smb_version_values *vals; char *prepath; struct sockaddr_storage srcaddr; /* allow binding to a local IP */ struct nls_table *local_nls; @@ -242,6 +255,8 @@ struct TCP_Server_Info { int srv_count; /* reference counter */ /* 15 character server name + 0x20 16th byte indicating type = srv */ char server_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL]; + struct smb_version_operations *ops; + struct smb_version_values *vals; enum statusEnum tcpStatus; /* what we think the status is */ char *hostname; /* hostname portion of UNC string */ struct socket *ssocket; @@ -1069,4 +1084,8 @@ void cifs_oplock_break(struct work_struct *work); extern const struct slow_work_ops cifs_oplock_break_ops; extern struct workqueue_struct *cifsiod_wq; +/* Operations for different SMB versions */ +#define SMB1_VERSION_STRING "1.0" +extern struct smb_version_operations smb1_operations; +extern struct smb_version_values smb1_values; #endif /* _CIFS_GLOB_H */ diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 4a6baa880506..5ac20fc2c312 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -102,7 +102,7 @@ enum { Opt_srcaddr, Opt_prefixpath, Opt_iocharset, Opt_sockopt, Opt_netbiosname, Opt_servern, - Opt_ver, Opt_sec, Opt_cache, + Opt_ver, Opt_vers, Opt_sec, Opt_cache, /* Mount options to be ignored */ Opt_ignore, @@ -210,6 +210,7 @@ static const match_table_t cifs_mount_option_tokens = { { Opt_netbiosname, "netbiosname=%s" }, { Opt_servern, "servern=%s" }, { Opt_ver, "ver=%s" }, + { Opt_vers, "vers=%s" }, { Opt_sec, "sec=%s" }, { Opt_cache, "cache=%s" }, @@ -275,6 +276,10 @@ static const match_table_t cifs_cacheflavor_tokens = { { Opt_cache_err, NULL } }; +static const match_table_t cifs_smb_version_tokens = { + { Smb_1, SMB1_VERSION_STRING }, +}; + static int ip_connect(struct TCP_Server_Info *server); static int generic_ip_connect(struct TCP_Server_Info *server); static void tlink_rb_insert(struct rb_root *root, struct tcon_link *new_tlink); @@ -1225,6 +1230,23 @@ cifs_parse_cache_flavor(char *value, struct smb_vol *vol) } static int +cifs_parse_smb_version(char *value, struct smb_vol *vol) +{ + substring_t args[MAX_OPT_ARGS]; + + switch (match_token(value, cifs_smb_version_tokens, args)) { + case Smb_1: + vol->ops = &smb1_operations; + vol->vals = &smb1_values; + break; + default: + cERROR(1, "Unknown vers= option specified: %s", value); + return 1; + } + return 0; +} + +static int cifs_parse_mount_options(const char *mountdata, const char *devname, struct smb_vol *vol) { @@ -1277,6 +1299,10 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, vol->actimeo = CIFS_DEF_ACTIMEO; + /* FIXME: add autonegotiation -- for now, SMB1 is default */ + vol->ops = &smb1_operations; + vol->vals = &smb1_values; + if (!mountdata) goto cifs_parse_mount_err; @@ -1880,6 +1906,14 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, printk(KERN_WARNING "CIFS: Invalid version" " specified\n"); goto cifs_parse_mount_err; + case Opt_vers: + string = match_strdup(args); + if (string == NULL) + goto out_nomem; + + if (cifs_parse_smb_version(string, vol) != 0) + goto cifs_parse_mount_err; + break; case Opt_sec: string = match_strdup(args); if (string == NULL) @@ -2108,6 +2142,9 @@ match_security(struct TCP_Server_Info *server, struct smb_vol *vol) static int match_server(struct TCP_Server_Info *server, struct sockaddr *addr, struct smb_vol *vol) { + if ((server->vals != vol->vals) || (server->ops != vol->ops)) + return 0; + if (!net_eq(cifs_net_ns(server), current->nsproxy->net_ns)) return 0; @@ -2230,6 +2267,8 @@ cifs_get_tcp_session(struct smb_vol *volume_info) goto out_err; } + tcp_ses->ops = volume_info->ops; + tcp_ses->vals = volume_info->vals; cifs_set_net_ns(tcp_ses, get_net(current->nsproxy->net_ns)); tcp_ses->hostname = extract_hostname(volume_info->UNC); if (IS_ERR(tcp_ses->hostname)) { @@ -3636,6 +3675,7 @@ cifs_setup_volume_info(struct smb_vol *volume_info, char *mount_data, if (cifs_parse_mount_options(mount_data, devname, volume_info)) return -EINVAL; + if (volume_info->nullauth) { cFYI(1, "Anonymous login"); kfree(volume_info->username); diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c new file mode 100644 index 000000000000..d2850d194eb5 --- /dev/null +++ b/fs/cifs/smb1ops.c @@ -0,0 +1,27 @@ +/* + * SMB1 (CIFS) version specific operations + * + * Copyright (c) 2012, Jeff Layton <jlayton@redhat.com> + * + * This library is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License v2 as published + * by the Free Software Foundation. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See + * the GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include "cifsglob.h" + +struct smb_version_operations smb1_operations = { +}; + +struct smb_version_values smb1_values = { + .version_string = SMB1_VERSION_STRING, +}; |