Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * inode.c |
| 3 | * |
| 4 | * Copyright (C) 1995, 1996 by Volker Lendecke |
| 5 | * Modified for big endian by J.F. Chadima and David S. Miller |
| 6 | * Modified 1997 Peter Waltenberg, Bill Hawes, David Woodhouse for 2.1 dcache |
| 7 | * Modified 1998 Wolfram Pienkoss for NLS |
| 8 | * Modified 2000 Ben Harris, University of Cambridge for NFS NS meta-info |
| 9 | * |
| 10 | */ |
| 11 | |
Joe Perches | b41f8b8 | 2014-04-08 16:04:14 -0700 | [diff] [blame] | 12 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 13 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | #include <linux/module.h> |
| 15 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | #include <asm/uaccess.h> |
| 17 | #include <asm/byteorder.h> |
| 18 | |
| 19 | #include <linux/time.h> |
| 20 | #include <linux/kernel.h> |
| 21 | #include <linux/mm.h> |
| 22 | #include <linux/string.h> |
| 23 | #include <linux/stat.h> |
| 24 | #include <linux/errno.h> |
| 25 | #include <linux/file.h> |
| 26 | #include <linux/fcntl.h> |
| 27 | #include <linux/slab.h> |
| 28 | #include <linux/vmalloc.h> |
| 29 | #include <linux/init.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #include <linux/vfs.h> |
Miklos Szeredi | 564cd13 | 2008-02-08 04:21:46 -0800 | [diff] [blame] | 31 | #include <linux/mount.h> |
| 32 | #include <linux/seq_file.h> |
Nick Piggin | 34286d6 | 2011-01-07 17:49:57 +1100 | [diff] [blame] | 33 | #include <linux/namei.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | #include <net/sock.h> |
| 36 | |
Al Viro | 32c419d | 2011-01-12 17:37:47 -0500 | [diff] [blame] | 37 | #include "ncp_fs.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #include "getopt.h" |
| 39 | |
Miklos Szeredi | 564cd13 | 2008-02-08 04:21:46 -0800 | [diff] [blame] | 40 | #define NCP_DEFAULT_FILE_MODE 0600 |
| 41 | #define NCP_DEFAULT_DIR_MODE 0700 |
| 42 | #define NCP_DEFAULT_TIME_OUT 10 |
| 43 | #define NCP_DEFAULT_RETRY_COUNT 20 |
| 44 | |
Al Viro | 94ee849 | 2010-06-07 00:45:56 -0400 | [diff] [blame] | 45 | static void ncp_evict_inode(struct inode *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | static void ncp_put_super(struct super_block *); |
David Howells | 726c334 | 2006-06-23 02:02:58 -0700 | [diff] [blame] | 47 | static int ncp_statfs(struct dentry *, struct kstatfs *); |
Al Viro | 34c80b1 | 2011-12-08 21:32:45 -0500 | [diff] [blame] | 48 | static int ncp_show_options(struct seq_file *, struct dentry *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | |
Christoph Lameter | e18b890 | 2006-12-06 20:33:20 -0800 | [diff] [blame] | 50 | static struct kmem_cache * ncp_inode_cachep; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | |
| 52 | static struct inode *ncp_alloc_inode(struct super_block *sb) |
| 53 | { |
| 54 | struct ncp_inode_info *ei; |
Christoph Lameter | e94b176 | 2006-12-06 20:33:17 -0800 | [diff] [blame] | 55 | ei = (struct ncp_inode_info *)kmem_cache_alloc(ncp_inode_cachep, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | if (!ei) |
| 57 | return NULL; |
| 58 | return &ei->vfs_inode; |
| 59 | } |
| 60 | |
Nick Piggin | fa0d7e3d | 2011-01-07 17:49:49 +1100 | [diff] [blame] | 61 | static void ncp_i_callback(struct rcu_head *head) |
| 62 | { |
| 63 | struct inode *inode = container_of(head, struct inode, i_rcu); |
Nick Piggin | fa0d7e3d | 2011-01-07 17:49:49 +1100 | [diff] [blame] | 64 | kmem_cache_free(ncp_inode_cachep, NCP_FINFO(inode)); |
| 65 | } |
| 66 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | static void ncp_destroy_inode(struct inode *inode) |
| 68 | { |
Nick Piggin | fa0d7e3d | 2011-01-07 17:49:49 +1100 | [diff] [blame] | 69 | call_rcu(&inode->i_rcu, ncp_i_callback); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | } |
| 71 | |
Alexey Dobriyan | 51cc506 | 2008-07-25 19:45:34 -0700 | [diff] [blame] | 72 | static void init_once(void *foo) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | { |
| 74 | struct ncp_inode_info *ei = (struct ncp_inode_info *) foo; |
| 75 | |
Christoph Lameter | a35afb8 | 2007-05-16 22:10:57 -0700 | [diff] [blame] | 76 | mutex_init(&ei->open_mutex); |
| 77 | inode_init_once(&ei->vfs_inode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | } |
Paul Mundt | 20c2df8 | 2007-07-20 10:11:58 +0900 | [diff] [blame] | 79 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | static int init_inodecache(void) |
| 81 | { |
| 82 | ncp_inode_cachep = kmem_cache_create("ncp_inode_cache", |
| 83 | sizeof(struct ncp_inode_info), |
Paul Jackson | fffb60f | 2006-03-24 03:16:06 -0800 | [diff] [blame] | 84 | 0, (SLAB_RECLAIM_ACCOUNT| |
| 85 | SLAB_MEM_SPREAD), |
Paul Mundt | 20c2df8 | 2007-07-20 10:11:58 +0900 | [diff] [blame] | 86 | init_once); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | if (ncp_inode_cachep == NULL) |
| 88 | return -ENOMEM; |
| 89 | return 0; |
| 90 | } |
| 91 | |
| 92 | static void destroy_inodecache(void) |
| 93 | { |
Kirill A. Shutemov | 8c0a853 | 2012-09-26 11:33:07 +1000 | [diff] [blame] | 94 | /* |
| 95 | * Make sure all delayed rcu free inodes are flushed before we |
| 96 | * destroy cache. |
| 97 | */ |
| 98 | rcu_barrier(); |
Alexey Dobriyan | 1a1d92c | 2006-09-27 01:49:40 -0700 | [diff] [blame] | 99 | kmem_cache_destroy(ncp_inode_cachep); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | } |
| 101 | |
| 102 | static int ncp_remount(struct super_block *sb, int *flags, char* data) |
| 103 | { |
Theodore Ts'o | 02b9984 | 2014-03-13 10:14:33 -0400 | [diff] [blame] | 104 | sync_filesystem(sb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | *flags |= MS_NODIRATIME; |
| 106 | return 0; |
| 107 | } |
| 108 | |
Josef 'Jeff' Sipek | ee9b6d6 | 2007-02-12 00:55:41 -0800 | [diff] [blame] | 109 | static const struct super_operations ncp_sops = |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | { |
| 111 | .alloc_inode = ncp_alloc_inode, |
| 112 | .destroy_inode = ncp_destroy_inode, |
| 113 | .drop_inode = generic_delete_inode, |
Al Viro | 94ee849 | 2010-06-07 00:45:56 -0400 | [diff] [blame] | 114 | .evict_inode = ncp_evict_inode, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | .put_super = ncp_put_super, |
| 116 | .statfs = ncp_statfs, |
| 117 | .remount_fs = ncp_remount, |
Miklos Szeredi | 564cd13 | 2008-02-08 04:21:46 -0800 | [diff] [blame] | 118 | .show_options = ncp_show_options, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | }; |
| 120 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | /* |
| 122 | * Fill in the ncpfs-specific information in the inode. |
| 123 | */ |
| 124 | static void ncp_update_dirent(struct inode *inode, struct ncp_entry_info *nwinfo) |
| 125 | { |
| 126 | NCP_FINFO(inode)->DosDirNum = nwinfo->i.DosDirNum; |
| 127 | NCP_FINFO(inode)->dirEntNum = nwinfo->i.dirEntNum; |
| 128 | NCP_FINFO(inode)->volNumber = nwinfo->volume; |
| 129 | } |
| 130 | |
| 131 | void ncp_update_inode(struct inode *inode, struct ncp_entry_info *nwinfo) |
| 132 | { |
| 133 | ncp_update_dirent(inode, nwinfo); |
| 134 | NCP_FINFO(inode)->nwattr = nwinfo->i.attributes; |
| 135 | NCP_FINFO(inode)->access = nwinfo->access; |
| 136 | memcpy(NCP_FINFO(inode)->file_handle, nwinfo->file_handle, |
| 137 | sizeof(nwinfo->file_handle)); |
Joe Perches | d3b73ca | 2014-04-08 16:04:15 -0700 | [diff] [blame] | 138 | ncp_dbg(1, "updated %s, volnum=%d, dirent=%u\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | nwinfo->i.entryName, NCP_FINFO(inode)->volNumber, |
| 140 | NCP_FINFO(inode)->dirEntNum); |
| 141 | } |
| 142 | |
| 143 | static void ncp_update_dates(struct inode *inode, struct nw_info_struct *nwi) |
| 144 | { |
| 145 | /* NFS namespace mode overrides others if it's set. */ |
Joe Perches | d3b73ca | 2014-04-08 16:04:15 -0700 | [diff] [blame] | 146 | ncp_dbg(1, "(%s) nfs.mode=0%o\n", nwi->entryName, nwi->nfs.mode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | if (nwi->nfs.mode) { |
| 148 | /* XXX Security? */ |
| 149 | inode->i_mode = nwi->nfs.mode; |
| 150 | } |
| 151 | |
Petr Vandrovec | 2e54eb9 | 2010-09-27 01:47:33 +0200 | [diff] [blame] | 152 | inode->i_blocks = (i_size_read(inode) + NCP_BLOCK_SIZE - 1) >> NCP_BLOCK_SHIFT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | |
| 154 | inode->i_mtime.tv_sec = ncp_date_dos2unix(nwi->modifyTime, nwi->modifyDate); |
| 155 | inode->i_ctime.tv_sec = ncp_date_dos2unix(nwi->creationTime, nwi->creationDate); |
| 156 | inode->i_atime.tv_sec = ncp_date_dos2unix(0, nwi->lastAccessDate); |
| 157 | inode->i_atime.tv_nsec = 0; |
| 158 | inode->i_mtime.tv_nsec = 0; |
| 159 | inode->i_ctime.tv_nsec = 0; |
| 160 | } |
| 161 | |
| 162 | static void ncp_update_attrs(struct inode *inode, struct ncp_entry_info *nwinfo) |
| 163 | { |
| 164 | struct nw_info_struct *nwi = &nwinfo->i; |
| 165 | struct ncp_server *server = NCP_SERVER(inode); |
| 166 | |
| 167 | if (nwi->attributes & aDIR) { |
| 168 | inode->i_mode = server->m.dir_mode; |
| 169 | /* for directories dataStreamSize seems to be some |
| 170 | Object ID ??? */ |
Petr Vandrovec | 2e54eb9 | 2010-09-27 01:47:33 +0200 | [diff] [blame] | 171 | i_size_write(inode, NCP_BLOCK_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | } else { |
Petr Vandrovec | 2e54eb9 | 2010-09-27 01:47:33 +0200 | [diff] [blame] | 173 | u32 size; |
| 174 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | inode->i_mode = server->m.file_mode; |
Petr Vandrovec | 2e54eb9 | 2010-09-27 01:47:33 +0200 | [diff] [blame] | 176 | size = le32_to_cpu(nwi->dataStreamSize); |
| 177 | i_size_write(inode, size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 178 | #ifdef CONFIG_NCPFS_EXTRAS |
| 179 | if ((server->m.flags & (NCP_MOUNT_EXTRAS|NCP_MOUNT_SYMLINKS)) |
| 180 | && (nwi->attributes & aSHARED)) { |
| 181 | switch (nwi->attributes & (aHIDDEN|aSYSTEM)) { |
| 182 | case aHIDDEN: |
| 183 | if (server->m.flags & NCP_MOUNT_SYMLINKS) { |
Petr Vandrovec | 2e54eb9 | 2010-09-27 01:47:33 +0200 | [diff] [blame] | 184 | if (/* (size >= NCP_MIN_SYMLINK_SIZE) |
| 185 | && */ (size <= NCP_MAX_SYMLINK_SIZE)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | inode->i_mode = (inode->i_mode & ~S_IFMT) | S_IFLNK; |
| 187 | NCP_FINFO(inode)->flags |= NCPI_KLUDGE_SYMLINK; |
| 188 | break; |
| 189 | } |
| 190 | } |
| 191 | /* FALLTHROUGH */ |
| 192 | case 0: |
| 193 | if (server->m.flags & NCP_MOUNT_EXTRAS) |
| 194 | inode->i_mode |= S_IRUGO; |
| 195 | break; |
| 196 | case aSYSTEM: |
| 197 | if (server->m.flags & NCP_MOUNT_EXTRAS) |
| 198 | inode->i_mode |= (inode->i_mode >> 2) & S_IXUGO; |
| 199 | break; |
| 200 | /* case aSYSTEM|aHIDDEN: */ |
| 201 | default: |
| 202 | /* reserved combination */ |
| 203 | break; |
| 204 | } |
| 205 | } |
| 206 | #endif |
| 207 | } |
| 208 | if (nwi->attributes & aRONLY) inode->i_mode &= ~S_IWUGO; |
| 209 | } |
| 210 | |
| 211 | void ncp_update_inode2(struct inode* inode, struct ncp_entry_info *nwinfo) |
| 212 | { |
| 213 | NCP_FINFO(inode)->flags = 0; |
| 214 | if (!atomic_read(&NCP_FINFO(inode)->opened)) { |
| 215 | NCP_FINFO(inode)->nwattr = nwinfo->i.attributes; |
| 216 | ncp_update_attrs(inode, nwinfo); |
| 217 | } |
| 218 | |
| 219 | ncp_update_dates(inode, &nwinfo->i); |
| 220 | ncp_update_dirent(inode, nwinfo); |
| 221 | } |
| 222 | |
| 223 | /* |
Petr Vandrovec | 2e54eb9 | 2010-09-27 01:47:33 +0200 | [diff] [blame] | 224 | * Fill in the inode based on the ncp_entry_info structure. Used only for brand new inodes. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | */ |
| 226 | static void ncp_set_attr(struct inode *inode, struct ncp_entry_info *nwinfo) |
| 227 | { |
| 228 | struct ncp_server *server = NCP_SERVER(inode); |
| 229 | |
| 230 | NCP_FINFO(inode)->flags = 0; |
| 231 | |
| 232 | ncp_update_attrs(inode, nwinfo); |
| 233 | |
Joe Perches | d3b73ca | 2014-04-08 16:04:15 -0700 | [diff] [blame] | 234 | ncp_dbg(2, "inode->i_mode = %u\n", inode->i_mode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | |
Miklos Szeredi | bfe8684 | 2011-10-28 14:13:29 +0200 | [diff] [blame] | 236 | set_nlink(inode, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | inode->i_uid = server->m.uid; |
| 238 | inode->i_gid = server->m.gid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | |
| 240 | ncp_update_dates(inode, &nwinfo->i); |
| 241 | ncp_update_inode(inode, nwinfo); |
| 242 | } |
| 243 | |
| 244 | #if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS) |
Arjan van de Ven | 92e1d5b | 2007-02-12 00:55:39 -0800 | [diff] [blame] | 245 | static const struct inode_operations ncp_symlink_inode_operations = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | .readlink = generic_readlink, |
| 247 | .follow_link = page_follow_link_light, |
| 248 | .put_link = page_put_link, |
| 249 | .setattr = ncp_notify_change, |
| 250 | }; |
| 251 | #endif |
| 252 | |
| 253 | /* |
| 254 | * Get a new inode. |
| 255 | */ |
| 256 | struct inode * |
| 257 | ncp_iget(struct super_block *sb, struct ncp_entry_info *info) |
| 258 | { |
| 259 | struct inode *inode; |
| 260 | |
| 261 | if (info == NULL) { |
Joe Perches | b41f8b8 | 2014-04-08 16:04:14 -0700 | [diff] [blame] | 262 | pr_err("%s: info is NULL\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | return NULL; |
| 264 | } |
| 265 | |
| 266 | inode = new_inode(sb); |
| 267 | if (inode) { |
| 268 | atomic_set(&NCP_FINFO(inode)->opened, info->opened); |
| 269 | |
Petr Vandrovec | 2e54eb9 | 2010-09-27 01:47:33 +0200 | [diff] [blame] | 270 | inode->i_mapping->backing_dev_info = sb->s_bdi; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | inode->i_ino = info->ino; |
| 272 | ncp_set_attr(inode, info); |
| 273 | if (S_ISREG(inode->i_mode)) { |
| 274 | inode->i_op = &ncp_file_inode_operations; |
| 275 | inode->i_fop = &ncp_file_operations; |
| 276 | } else if (S_ISDIR(inode->i_mode)) { |
| 277 | inode->i_op = &ncp_dir_inode_operations; |
| 278 | inode->i_fop = &ncp_dir_operations; |
| 279 | #ifdef CONFIG_NCPFS_NFS_NS |
| 280 | } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { |
| 281 | init_special_inode(inode, inode->i_mode, |
| 282 | new_decode_dev(info->i.nfs.rdev)); |
| 283 | #endif |
| 284 | #if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS) |
| 285 | } else if (S_ISLNK(inode->i_mode)) { |
| 286 | inode->i_op = &ncp_symlink_inode_operations; |
| 287 | inode->i_data.a_ops = &ncp_symlink_aops; |
| 288 | #endif |
| 289 | } else { |
| 290 | make_bad_inode(inode); |
| 291 | } |
| 292 | insert_inode_hash(inode); |
| 293 | } else |
Joe Perches | b41f8b8 | 2014-04-08 16:04:14 -0700 | [diff] [blame] | 294 | pr_err("%s: iget failed!\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 295 | return inode; |
| 296 | } |
| 297 | |
| 298 | static void |
Al Viro | 94ee849 | 2010-06-07 00:45:56 -0400 | [diff] [blame] | 299 | ncp_evict_inode(struct inode *inode) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | { |
Johannes Weiner | 91b0abe | 2014-04-03 14:47:49 -0700 | [diff] [blame] | 301 | truncate_inode_pages_final(&inode->i_data); |
Jan Kara | dbd5768 | 2012-05-03 14:48:02 +0200 | [diff] [blame] | 302 | clear_inode(inode); |
Mark Fasheh | fef2665 | 2005-09-09 13:01:31 -0700 | [diff] [blame] | 303 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | if (S_ISDIR(inode->i_mode)) { |
Joe Perches | d3b73ca | 2014-04-08 16:04:15 -0700 | [diff] [blame] | 305 | ncp_dbg(2, "put directory %ld\n", inode->i_ino); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | } |
| 307 | |
| 308 | if (ncp_make_closed(inode) != 0) { |
| 309 | /* We can't do anything but complain. */ |
Joe Perches | b41f8b8 | 2014-04-08 16:04:14 -0700 | [diff] [blame] | 310 | pr_err("%s: could not close\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | } |
| 313 | |
| 314 | static void ncp_stop_tasks(struct ncp_server *server) { |
| 315 | struct sock* sk = server->ncp_sock->sk; |
Petr Vandrovec | 2a4df5d | 2010-09-29 14:39:11 +0200 | [diff] [blame] | 316 | |
| 317 | lock_sock(sk); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | sk->sk_error_report = server->error_report; |
| 319 | sk->sk_data_ready = server->data_ready; |
| 320 | sk->sk_write_space = server->write_space; |
Petr Vandrovec | 2a4df5d | 2010-09-29 14:39:11 +0200 | [diff] [blame] | 321 | release_sock(sk); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | del_timer_sync(&server->timeout_tm); |
Tejun Heo | 5d8e4bd | 2010-12-24 15:59:06 +0100 | [diff] [blame] | 323 | |
Tejun Heo | 4382973 | 2012-08-20 14:51:24 -0700 | [diff] [blame] | 324 | flush_work(&server->rcv.tq); |
Tejun Heo | 5d8e4bd | 2010-12-24 15:59:06 +0100 | [diff] [blame] | 325 | if (sk->sk_socket->type == SOCK_STREAM) |
Tejun Heo | 4382973 | 2012-08-20 14:51:24 -0700 | [diff] [blame] | 326 | flush_work(&server->tx.tq); |
Tejun Heo | 5d8e4bd | 2010-12-24 15:59:06 +0100 | [diff] [blame] | 327 | else |
Tejun Heo | 4382973 | 2012-08-20 14:51:24 -0700 | [diff] [blame] | 328 | flush_work(&server->timeout_tq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | } |
| 330 | |
Al Viro | 34c80b1 | 2011-12-08 21:32:45 -0500 | [diff] [blame] | 331 | static int ncp_show_options(struct seq_file *seq, struct dentry *root) |
Miklos Szeredi | 564cd13 | 2008-02-08 04:21:46 -0800 | [diff] [blame] | 332 | { |
Al Viro | 34c80b1 | 2011-12-08 21:32:45 -0500 | [diff] [blame] | 333 | struct ncp_server *server = NCP_SBP(root->d_sb); |
Miklos Szeredi | 564cd13 | 2008-02-08 04:21:46 -0800 | [diff] [blame] | 334 | unsigned int tmp; |
| 335 | |
Eric W. Biederman | 1ac7fd8 | 2012-02-07 16:28:28 -0800 | [diff] [blame] | 336 | if (!uid_eq(server->m.uid, GLOBAL_ROOT_UID)) |
| 337 | seq_printf(seq, ",uid=%u", |
| 338 | from_kuid_munged(&init_user_ns, server->m.uid)); |
| 339 | if (!gid_eq(server->m.gid, GLOBAL_ROOT_GID)) |
| 340 | seq_printf(seq, ",gid=%u", |
| 341 | from_kgid_munged(&init_user_ns, server->m.gid)); |
| 342 | if (!uid_eq(server->m.mounted_uid, GLOBAL_ROOT_UID)) |
| 343 | seq_printf(seq, ",owner=%u", |
| 344 | from_kuid_munged(&init_user_ns, server->m.mounted_uid)); |
Miklos Szeredi | 564cd13 | 2008-02-08 04:21:46 -0800 | [diff] [blame] | 345 | tmp = server->m.file_mode & S_IALLUGO; |
| 346 | if (tmp != NCP_DEFAULT_FILE_MODE) |
| 347 | seq_printf(seq, ",mode=0%o", tmp); |
| 348 | tmp = server->m.dir_mode & S_IALLUGO; |
| 349 | if (tmp != NCP_DEFAULT_DIR_MODE) |
| 350 | seq_printf(seq, ",dirmode=0%o", tmp); |
| 351 | if (server->m.time_out != NCP_DEFAULT_TIME_OUT * HZ / 100) { |
| 352 | tmp = server->m.time_out * 100 / HZ; |
| 353 | seq_printf(seq, ",timeout=%u", tmp); |
| 354 | } |
| 355 | if (server->m.retry_count != NCP_DEFAULT_RETRY_COUNT) |
| 356 | seq_printf(seq, ",retry=%u", server->m.retry_count); |
| 357 | if (server->m.flags != 0) |
| 358 | seq_printf(seq, ",flags=%lu", server->m.flags); |
| 359 | if (server->m.wdog_pid != NULL) |
| 360 | seq_printf(seq, ",wdogpid=%u", pid_vnr(server->m.wdog_pid)); |
| 361 | |
| 362 | return 0; |
| 363 | } |
| 364 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 365 | static const struct ncp_option ncp_opts[] = { |
| 366 | { "uid", OPT_INT, 'u' }, |
| 367 | { "gid", OPT_INT, 'g' }, |
| 368 | { "owner", OPT_INT, 'o' }, |
| 369 | { "mode", OPT_INT, 'm' }, |
| 370 | { "dirmode", OPT_INT, 'd' }, |
| 371 | { "timeout", OPT_INT, 't' }, |
| 372 | { "retry", OPT_INT, 'r' }, |
| 373 | { "flags", OPT_INT, 'f' }, |
| 374 | { "wdogpid", OPT_INT, 'w' }, |
| 375 | { "ncpfd", OPT_INT, 'n' }, |
| 376 | { "infofd", OPT_INT, 'i' }, /* v5 */ |
| 377 | { "version", OPT_INT, 'v' }, |
| 378 | { NULL, 0, 0 } }; |
| 379 | |
| 380 | static int ncp_parse_options(struct ncp_mount_data_kernel *data, char *options) { |
| 381 | int optval; |
| 382 | char *optarg; |
| 383 | unsigned long optint; |
| 384 | int version = 0; |
Eric W. Biederman | 1de2412 | 2006-12-13 00:35:13 -0800 | [diff] [blame] | 385 | int ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | |
| 387 | data->flags = 0; |
| 388 | data->int_flags = 0; |
Eric W. Biederman | 1ac7fd8 | 2012-02-07 16:28:28 -0800 | [diff] [blame] | 389 | data->mounted_uid = GLOBAL_ROOT_UID; |
Eric W. Biederman | 2154227 | 2006-12-13 00:35:11 -0800 | [diff] [blame] | 390 | data->wdog_pid = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | data->ncp_fd = ~0; |
Miklos Szeredi | 564cd13 | 2008-02-08 04:21:46 -0800 | [diff] [blame] | 392 | data->time_out = NCP_DEFAULT_TIME_OUT; |
| 393 | data->retry_count = NCP_DEFAULT_RETRY_COUNT; |
Eric W. Biederman | 1ac7fd8 | 2012-02-07 16:28:28 -0800 | [diff] [blame] | 394 | data->uid = GLOBAL_ROOT_UID; |
| 395 | data->gid = GLOBAL_ROOT_GID; |
Miklos Szeredi | 564cd13 | 2008-02-08 04:21:46 -0800 | [diff] [blame] | 396 | data->file_mode = NCP_DEFAULT_FILE_MODE; |
| 397 | data->dir_mode = NCP_DEFAULT_DIR_MODE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | data->info_fd = -1; |
| 399 | data->mounted_vol[0] = 0; |
| 400 | |
| 401 | while ((optval = ncp_getopt("ncpfs", &options, ncp_opts, NULL, &optarg, &optint)) != 0) { |
Eric W. Biederman | 1de2412 | 2006-12-13 00:35:13 -0800 | [diff] [blame] | 402 | ret = optval; |
| 403 | if (ret < 0) |
| 404 | goto err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | switch (optval) { |
| 406 | case 'u': |
Eric W. Biederman | 1ac7fd8 | 2012-02-07 16:28:28 -0800 | [diff] [blame] | 407 | data->uid = make_kuid(current_user_ns(), optint); |
Wei Yongjun | 4fbeb19 | 2013-07-04 21:43:32 +0800 | [diff] [blame] | 408 | if (!uid_valid(data->uid)) { |
| 409 | ret = -EINVAL; |
Eric W. Biederman | 1ac7fd8 | 2012-02-07 16:28:28 -0800 | [diff] [blame] | 410 | goto err; |
Wei Yongjun | 4fbeb19 | 2013-07-04 21:43:32 +0800 | [diff] [blame] | 411 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | break; |
| 413 | case 'g': |
Eric W. Biederman | 1ac7fd8 | 2012-02-07 16:28:28 -0800 | [diff] [blame] | 414 | data->gid = make_kgid(current_user_ns(), optint); |
Wei Yongjun | 4fbeb19 | 2013-07-04 21:43:32 +0800 | [diff] [blame] | 415 | if (!gid_valid(data->gid)) { |
| 416 | ret = -EINVAL; |
Eric W. Biederman | 1ac7fd8 | 2012-02-07 16:28:28 -0800 | [diff] [blame] | 417 | goto err; |
Wei Yongjun | 4fbeb19 | 2013-07-04 21:43:32 +0800 | [diff] [blame] | 418 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | break; |
| 420 | case 'o': |
Eric W. Biederman | 1ac7fd8 | 2012-02-07 16:28:28 -0800 | [diff] [blame] | 421 | data->mounted_uid = make_kuid(current_user_ns(), optint); |
Wei Yongjun | 4fbeb19 | 2013-07-04 21:43:32 +0800 | [diff] [blame] | 422 | if (!uid_valid(data->mounted_uid)) { |
| 423 | ret = -EINVAL; |
Eric W. Biederman | 1ac7fd8 | 2012-02-07 16:28:28 -0800 | [diff] [blame] | 424 | goto err; |
Wei Yongjun | 4fbeb19 | 2013-07-04 21:43:32 +0800 | [diff] [blame] | 425 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 426 | break; |
| 427 | case 'm': |
| 428 | data->file_mode = optint; |
| 429 | break; |
| 430 | case 'd': |
| 431 | data->dir_mode = optint; |
| 432 | break; |
| 433 | case 't': |
| 434 | data->time_out = optint; |
| 435 | break; |
| 436 | case 'r': |
| 437 | data->retry_count = optint; |
| 438 | break; |
| 439 | case 'f': |
| 440 | data->flags = optint; |
| 441 | break; |
| 442 | case 'w': |
Eric W. Biederman | 2154227 | 2006-12-13 00:35:11 -0800 | [diff] [blame] | 443 | data->wdog_pid = find_get_pid(optint); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | break; |
| 445 | case 'n': |
| 446 | data->ncp_fd = optint; |
| 447 | break; |
| 448 | case 'i': |
| 449 | data->info_fd = optint; |
| 450 | break; |
| 451 | case 'v': |
Eric W. Biederman | 1de2412 | 2006-12-13 00:35:13 -0800 | [diff] [blame] | 452 | ret = -ECHRNG; |
| 453 | if (optint < NCP_MOUNT_VERSION_V4) |
| 454 | goto err; |
| 455 | if (optint > NCP_MOUNT_VERSION_V5) |
| 456 | goto err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 457 | version = optint; |
| 458 | break; |
| 459 | |
| 460 | } |
| 461 | } |
| 462 | return 0; |
Eric W. Biederman | 1de2412 | 2006-12-13 00:35:13 -0800 | [diff] [blame] | 463 | err: |
| 464 | put_pid(data->wdog_pid); |
| 465 | data->wdog_pid = NULL; |
| 466 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 467 | } |
| 468 | |
| 469 | static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent) |
| 470 | { |
| 471 | struct ncp_mount_data_kernel data; |
| 472 | struct ncp_server *server; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | struct inode *root_inode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | struct socket *sock; |
| 475 | int error; |
| 476 | int default_bufsize; |
| 477 | #ifdef CONFIG_NCPFS_PACKET_SIGNING |
| 478 | int options; |
| 479 | #endif |
| 480 | struct ncp_entry_info finfo; |
| 481 | |
Andrew Morton | 2a5cac1 | 2011-05-24 17:13:42 -0700 | [diff] [blame] | 482 | memset(&data, 0, sizeof(data)); |
Panagiotis Issaris | f8314dc | 2006-09-27 01:49:37 -0700 | [diff] [blame] | 483 | server = kzalloc(sizeof(struct ncp_server), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | if (!server) |
| 485 | return -ENOMEM; |
| 486 | sb->s_fs_info = server; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 487 | |
| 488 | error = -EFAULT; |
| 489 | if (raw_data == NULL) |
| 490 | goto out; |
| 491 | switch (*(int*)raw_data) { |
| 492 | case NCP_MOUNT_VERSION: |
| 493 | { |
| 494 | struct ncp_mount_data* md = (struct ncp_mount_data*)raw_data; |
| 495 | |
| 496 | data.flags = md->flags; |
| 497 | data.int_flags = NCP_IMOUNT_LOGGEDIN_POSSIBLE; |
Eric W. Biederman | 1ac7fd8 | 2012-02-07 16:28:28 -0800 | [diff] [blame] | 498 | data.mounted_uid = make_kuid(current_user_ns(), md->mounted_uid); |
Eric W. Biederman | 2154227 | 2006-12-13 00:35:11 -0800 | [diff] [blame] | 499 | data.wdog_pid = find_get_pid(md->wdog_pid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 500 | data.ncp_fd = md->ncp_fd; |
| 501 | data.time_out = md->time_out; |
| 502 | data.retry_count = md->retry_count; |
Eric W. Biederman | 1ac7fd8 | 2012-02-07 16:28:28 -0800 | [diff] [blame] | 503 | data.uid = make_kuid(current_user_ns(), md->uid); |
| 504 | data.gid = make_kgid(current_user_ns(), md->gid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 505 | data.file_mode = md->file_mode; |
| 506 | data.dir_mode = md->dir_mode; |
| 507 | data.info_fd = -1; |
| 508 | memcpy(data.mounted_vol, md->mounted_vol, |
| 509 | NCP_VOLNAME_LEN+1); |
| 510 | } |
| 511 | break; |
| 512 | case NCP_MOUNT_VERSION_V4: |
| 513 | { |
| 514 | struct ncp_mount_data_v4* md = (struct ncp_mount_data_v4*)raw_data; |
| 515 | |
| 516 | data.flags = md->flags; |
Eric W. Biederman | 1ac7fd8 | 2012-02-07 16:28:28 -0800 | [diff] [blame] | 517 | data.mounted_uid = make_kuid(current_user_ns(), md->mounted_uid); |
Eric W. Biederman | 2154227 | 2006-12-13 00:35:11 -0800 | [diff] [blame] | 518 | data.wdog_pid = find_get_pid(md->wdog_pid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | data.ncp_fd = md->ncp_fd; |
| 520 | data.time_out = md->time_out; |
| 521 | data.retry_count = md->retry_count; |
Eric W. Biederman | 1ac7fd8 | 2012-02-07 16:28:28 -0800 | [diff] [blame] | 522 | data.uid = make_kuid(current_user_ns(), md->uid); |
| 523 | data.gid = make_kgid(current_user_ns(), md->gid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | data.file_mode = md->file_mode; |
| 525 | data.dir_mode = md->dir_mode; |
| 526 | data.info_fd = -1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 527 | } |
| 528 | break; |
| 529 | default: |
| 530 | error = -ECHRNG; |
| 531 | if (memcmp(raw_data, "vers", 4) == 0) { |
| 532 | error = ncp_parse_options(&data, raw_data); |
| 533 | } |
| 534 | if (error) |
| 535 | goto out; |
| 536 | break; |
| 537 | } |
Eric W. Biederman | 1ac7fd8 | 2012-02-07 16:28:28 -0800 | [diff] [blame] | 538 | error = -EINVAL; |
| 539 | if (!uid_valid(data.mounted_uid) || !uid_valid(data.uid) || |
| 540 | !gid_valid(data.gid)) |
| 541 | goto out; |
Al Viro | 44ba8406 | 2014-03-06 17:41:01 -0500 | [diff] [blame] | 542 | sock = sockfd_lookup(data.ncp_fd, &error); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 543 | if (!sock) |
Al Viro | 44ba8406 | 2014-03-06 17:41:01 -0500 | [diff] [blame] | 544 | goto out; |
| 545 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 546 | if (sock->type == SOCK_STREAM) |
| 547 | default_bufsize = 0xF000; |
| 548 | else |
| 549 | default_bufsize = 1024; |
| 550 | |
| 551 | sb->s_flags |= MS_NODIRATIME; /* probably even noatime */ |
| 552 | sb->s_maxbytes = 0xFFFFFFFFU; |
| 553 | sb->s_blocksize = 1024; /* Eh... Is this correct? */ |
| 554 | sb->s_blocksize_bits = 10; |
| 555 | sb->s_magic = NCP_SUPER_MAGIC; |
| 556 | sb->s_op = &ncp_sops; |
Al Viro | 0378c40 | 2011-01-12 17:25:03 -0500 | [diff] [blame] | 557 | sb->s_d_op = &ncp_dentry_operations; |
Jens Axboe | f1970c7 | 2010-04-22 12:31:11 +0200 | [diff] [blame] | 558 | sb->s_bdi = &server->bdi; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 559 | |
| 560 | server = NCP_SBP(sb); |
| 561 | memset(server, 0, sizeof(*server)); |
| 562 | |
Christoph Hellwig | b4caecd | 2015-01-14 10:42:32 +0100 | [diff] [blame^] | 563 | error = bdi_setup_and_register(&server->bdi, "ncpfs"); |
Jens Axboe | f1970c7 | 2010-04-22 12:31:11 +0200 | [diff] [blame] | 564 | if (error) |
Djalal Harouni | 759c361 | 2011-12-13 02:47:29 +0100 | [diff] [blame] | 565 | goto out_fput; |
Jens Axboe | f1970c7 | 2010-04-22 12:31:11 +0200 | [diff] [blame] | 566 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | server->ncp_sock = sock; |
| 568 | |
| 569 | if (data.info_fd != -1) { |
Al Viro | 44ba8406 | 2014-03-06 17:41:01 -0500 | [diff] [blame] | 570 | struct socket *info_sock = sockfd_lookup(data.info_fd, &error); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 571 | if (!info_sock) |
Al Viro | 44ba8406 | 2014-03-06 17:41:01 -0500 | [diff] [blame] | 572 | goto out_bdi; |
| 573 | server->info_sock = info_sock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | error = -EBADFD; |
| 575 | if (info_sock->type != SOCK_STREAM) |
| 576 | goto out_fput2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 577 | } |
| 578 | |
| 579 | /* server->lock = 0; */ |
Ingo Molnar | 8e3f904 | 2006-03-23 03:00:43 -0800 | [diff] [blame] | 580 | mutex_init(&server->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 581 | server->packet = NULL; |
| 582 | /* server->buffer_size = 0; */ |
| 583 | /* server->conn_status = 0; */ |
| 584 | /* server->root_dentry = NULL; */ |
| 585 | /* server->root_setuped = 0; */ |
Petr Vandrovec | 2e54eb9 | 2010-09-27 01:47:33 +0200 | [diff] [blame] | 586 | mutex_init(&server->root_setup_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | #ifdef CONFIG_NCPFS_PACKET_SIGNING |
| 588 | /* server->sign_wanted = 0; */ |
| 589 | /* server->sign_active = 0; */ |
| 590 | #endif |
Petr Vandrovec | 2e54eb9 | 2010-09-27 01:47:33 +0200 | [diff] [blame] | 591 | init_rwsem(&server->auth_rwsem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | server->auth.auth_type = NCP_AUTH_NONE; |
| 593 | /* server->auth.object_name_len = 0; */ |
| 594 | /* server->auth.object_name = NULL; */ |
| 595 | /* server->auth.object_type = 0; */ |
| 596 | /* server->priv.len = 0; */ |
| 597 | /* server->priv.data = NULL; */ |
| 598 | |
| 599 | server->m = data; |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 600 | /* Although anything producing this is buggy, it happens |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | now because of PATH_MAX changes.. */ |
| 602 | if (server->m.time_out < 1) { |
| 603 | server->m.time_out = 10; |
Joe Perches | b41f8b8 | 2014-04-08 16:04:14 -0700 | [diff] [blame] | 604 | pr_info("You need to recompile your ncpfs utils..\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 605 | } |
| 606 | server->m.time_out = server->m.time_out * HZ / 100; |
| 607 | server->m.file_mode = (server->m.file_mode & S_IRWXUGO) | S_IFREG; |
| 608 | server->m.dir_mode = (server->m.dir_mode & S_IRWXUGO) | S_IFDIR; |
| 609 | |
| 610 | #ifdef CONFIG_NCPFS_NLS |
| 611 | /* load the default NLS charsets */ |
| 612 | server->nls_vol = load_nls_default(); |
| 613 | server->nls_io = load_nls_default(); |
| 614 | #endif /* CONFIG_NCPFS_NLS */ |
| 615 | |
Petr Vandrovec | 2e54eb9 | 2010-09-27 01:47:33 +0200 | [diff] [blame] | 616 | atomic_set(&server->dentry_ttl, 0); /* no caching */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 617 | |
| 618 | INIT_LIST_HEAD(&server->tx.requests); |
Ingo Molnar | 8e3f904 | 2006-03-23 03:00:43 -0800 | [diff] [blame] | 619 | mutex_init(&server->rcv.creq_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | server->tx.creq = NULL; |
| 621 | server->rcv.creq = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 622 | |
| 623 | init_timer(&server->timeout_tm); |
| 624 | #undef NCP_PACKET_SIZE |
| 625 | #define NCP_PACKET_SIZE 131072 |
| 626 | error = -ENOMEM; |
| 627 | server->packet_size = NCP_PACKET_SIZE; |
| 628 | server->packet = vmalloc(NCP_PACKET_SIZE); |
| 629 | if (server->packet == NULL) |
| 630 | goto out_nls; |
Pierre Ossman | c5f93cf | 2007-02-19 11:34:43 +0100 | [diff] [blame] | 631 | server->txbuf = vmalloc(NCP_PACKET_SIZE); |
| 632 | if (server->txbuf == NULL) |
| 633 | goto out_packet; |
| 634 | server->rxbuf = vmalloc(NCP_PACKET_SIZE); |
| 635 | if (server->rxbuf == NULL) |
| 636 | goto out_txbuf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 637 | |
Petr Vandrovec | 2a4df5d | 2010-09-29 14:39:11 +0200 | [diff] [blame] | 638 | lock_sock(sock->sk); |
| 639 | server->data_ready = sock->sk->sk_data_ready; |
| 640 | server->write_space = sock->sk->sk_write_space; |
| 641 | server->error_report = sock->sk->sk_error_report; |
| 642 | sock->sk->sk_user_data = server; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 643 | sock->sk->sk_data_ready = ncp_tcp_data_ready; |
| 644 | sock->sk->sk_error_report = ncp_tcp_error_report; |
| 645 | if (sock->type == SOCK_STREAM) { |
| 646 | server->rcv.ptr = (unsigned char*)&server->rcv.buf; |
| 647 | server->rcv.len = 10; |
| 648 | server->rcv.state = 0; |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 649 | INIT_WORK(&server->rcv.tq, ncp_tcp_rcv_proc); |
| 650 | INIT_WORK(&server->tx.tq, ncp_tcp_tx_proc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 651 | sock->sk->sk_write_space = ncp_tcp_write_space; |
| 652 | } else { |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 653 | INIT_WORK(&server->rcv.tq, ncpdgram_rcv_proc); |
| 654 | INIT_WORK(&server->timeout_tq, ncpdgram_timeout_proc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 655 | server->timeout_tm.data = (unsigned long)server; |
| 656 | server->timeout_tm.function = ncpdgram_timeout_call; |
| 657 | } |
Petr Vandrovec | 2a4df5d | 2010-09-29 14:39:11 +0200 | [diff] [blame] | 658 | release_sock(sock->sk); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 659 | |
| 660 | ncp_lock_server(server); |
| 661 | error = ncp_connect(server); |
| 662 | ncp_unlock_server(server); |
| 663 | if (error < 0) |
Pierre Ossman | c5f93cf | 2007-02-19 11:34:43 +0100 | [diff] [blame] | 664 | goto out_rxbuf; |
Joe Perches | 15a03ac | 2014-04-08 16:04:18 -0700 | [diff] [blame] | 665 | ncp_dbg(1, "NCP_SBP(sb) = %p\n", NCP_SBP(sb)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 666 | |
| 667 | error = -EMSGSIZE; /* -EREMOTESIDEINCOMPATIBLE */ |
| 668 | #ifdef CONFIG_NCPFS_PACKET_SIGNING |
| 669 | if (ncp_negotiate_size_and_options(server, default_bufsize, |
| 670 | NCP_DEFAULT_OPTIONS, &(server->buffer_size), &options) == 0) |
| 671 | { |
| 672 | if (options != NCP_DEFAULT_OPTIONS) |
| 673 | { |
| 674 | if (ncp_negotiate_size_and_options(server, |
| 675 | default_bufsize, |
| 676 | options & 2, |
| 677 | &(server->buffer_size), &options) != 0) |
| 678 | |
| 679 | { |
| 680 | goto out_disconnect; |
| 681 | } |
| 682 | } |
Petr Vandrovec | 2e54eb9 | 2010-09-27 01:47:33 +0200 | [diff] [blame] | 683 | ncp_lock_server(server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 684 | if (options & 2) |
| 685 | server->sign_wanted = 1; |
Petr Vandrovec | 2e54eb9 | 2010-09-27 01:47:33 +0200 | [diff] [blame] | 686 | ncp_unlock_server(server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 687 | } |
| 688 | else |
| 689 | #endif /* CONFIG_NCPFS_PACKET_SIGNING */ |
| 690 | if (ncp_negotiate_buffersize(server, default_bufsize, |
| 691 | &(server->buffer_size)) != 0) |
| 692 | goto out_disconnect; |
Joe Perches | d3b73ca | 2014-04-08 16:04:15 -0700 | [diff] [blame] | 693 | ncp_dbg(1, "bufsize = %d\n", server->buffer_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | |
| 695 | memset(&finfo, 0, sizeof(finfo)); |
| 696 | finfo.i.attributes = aDIR; |
| 697 | finfo.i.dataStreamSize = 0; /* ignored */ |
| 698 | finfo.i.dirEntNum = 0; |
| 699 | finfo.i.DosDirNum = 0; |
| 700 | #ifdef CONFIG_NCPFS_SMALLDOS |
| 701 | finfo.i.NSCreator = NW_NS_DOS; |
| 702 | #endif |
| 703 | finfo.volume = NCP_NUMBER_OF_VOLUMES; |
| 704 | /* set dates of mountpoint to Jan 1, 1986; 00:00 */ |
| 705 | finfo.i.creationTime = finfo.i.modifyTime |
| 706 | = cpu_to_le16(0x0000); |
| 707 | finfo.i.creationDate = finfo.i.modifyDate |
| 708 | = finfo.i.lastAccessDate |
| 709 | = cpu_to_le16(0x0C21); |
| 710 | finfo.i.nameLen = 0; |
| 711 | finfo.i.entryName[0] = '\0'; |
| 712 | |
| 713 | finfo.opened = 0; |
| 714 | finfo.ino = 2; /* tradition */ |
| 715 | |
| 716 | server->name_space[finfo.volume] = NW_NS_DOS; |
| 717 | |
| 718 | error = -ENOMEM; |
| 719 | root_inode = ncp_iget(sb, &finfo); |
| 720 | if (!root_inode) |
| 721 | goto out_disconnect; |
Joe Perches | d3b73ca | 2014-04-08 16:04:15 -0700 | [diff] [blame] | 722 | ncp_dbg(1, "root vol=%d\n", NCP_FINFO(root_inode)->volNumber); |
Al Viro | 48fde70 | 2012-01-08 22:15:13 -0500 | [diff] [blame] | 723 | sb->s_root = d_make_root(root_inode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 724 | if (!sb->s_root) |
Al Viro | 48fde70 | 2012-01-08 22:15:13 -0500 | [diff] [blame] | 725 | goto out_disconnect; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 726 | return 0; |
| 727 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 728 | out_disconnect: |
| 729 | ncp_lock_server(server); |
| 730 | ncp_disconnect(server); |
| 731 | ncp_unlock_server(server); |
Pierre Ossman | c5f93cf | 2007-02-19 11:34:43 +0100 | [diff] [blame] | 732 | out_rxbuf: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 733 | ncp_stop_tasks(server); |
Pierre Ossman | c5f93cf | 2007-02-19 11:34:43 +0100 | [diff] [blame] | 734 | vfree(server->rxbuf); |
| 735 | out_txbuf: |
| 736 | vfree(server->txbuf); |
| 737 | out_packet: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 738 | vfree(server->packet); |
| 739 | out_nls: |
| 740 | #ifdef CONFIG_NCPFS_NLS |
| 741 | unload_nls(server->nls_io); |
| 742 | unload_nls(server->nls_vol); |
| 743 | #endif |
Petr Vandrovec | 2e54eb9 | 2010-09-27 01:47:33 +0200 | [diff] [blame] | 744 | mutex_destroy(&server->rcv.creq_mutex); |
| 745 | mutex_destroy(&server->root_setup_lock); |
| 746 | mutex_destroy(&server->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 747 | out_fput2: |
Al Viro | 44ba8406 | 2014-03-06 17:41:01 -0500 | [diff] [blame] | 748 | if (server->info_sock) |
| 749 | sockfd_put(server->info_sock); |
Jens Axboe | f1970c7 | 2010-04-22 12:31:11 +0200 | [diff] [blame] | 750 | out_bdi: |
Djalal Harouni | 759c361 | 2011-12-13 02:47:29 +0100 | [diff] [blame] | 751 | bdi_destroy(&server->bdi); |
| 752 | out_fput: |
Al Viro | 44ba8406 | 2014-03-06 17:41:01 -0500 | [diff] [blame] | 753 | sockfd_put(sock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 754 | out: |
Eric W. Biederman | 1de2412 | 2006-12-13 00:35:13 -0800 | [diff] [blame] | 755 | put_pid(data.wdog_pid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 756 | sb->s_fs_info = NULL; |
| 757 | kfree(server); |
| 758 | return error; |
| 759 | } |
| 760 | |
Al Viro | 1dcddd4 | 2013-10-03 13:22:44 -0400 | [diff] [blame] | 761 | static void delayed_free(struct rcu_head *p) |
| 762 | { |
| 763 | struct ncp_server *server = container_of(p, struct ncp_server, rcu); |
| 764 | #ifdef CONFIG_NCPFS_NLS |
| 765 | /* unload the NLS charsets */ |
| 766 | unload_nls(server->nls_vol); |
| 767 | unload_nls(server->nls_io); |
| 768 | #endif /* CONFIG_NCPFS_NLS */ |
| 769 | kfree(server); |
| 770 | } |
| 771 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 772 | static void ncp_put_super(struct super_block *sb) |
| 773 | { |
| 774 | struct ncp_server *server = NCP_SBP(sb); |
| 775 | |
| 776 | ncp_lock_server(server); |
| 777 | ncp_disconnect(server); |
| 778 | ncp_unlock_server(server); |
| 779 | |
| 780 | ncp_stop_tasks(server); |
| 781 | |
Petr Vandrovec | 2e54eb9 | 2010-09-27 01:47:33 +0200 | [diff] [blame] | 782 | mutex_destroy(&server->rcv.creq_mutex); |
| 783 | mutex_destroy(&server->root_setup_lock); |
| 784 | mutex_destroy(&server->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 785 | |
Al Viro | 44ba8406 | 2014-03-06 17:41:01 -0500 | [diff] [blame] | 786 | if (server->info_sock) |
| 787 | sockfd_put(server->info_sock); |
| 788 | sockfd_put(server->ncp_sock); |
Eric W. Biederman | 2154227 | 2006-12-13 00:35:11 -0800 | [diff] [blame] | 789 | kill_pid(server->m.wdog_pid, SIGTERM, 1); |
| 790 | put_pid(server->m.wdog_pid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 791 | |
Jens Axboe | f1970c7 | 2010-04-22 12:31:11 +0200 | [diff] [blame] | 792 | bdi_destroy(&server->bdi); |
Pekka Enberg | 44db77f | 2006-01-14 13:21:12 -0800 | [diff] [blame] | 793 | kfree(server->priv.data); |
| 794 | kfree(server->auth.object_name); |
Pierre Ossman | c5f93cf | 2007-02-19 11:34:43 +0100 | [diff] [blame] | 795 | vfree(server->rxbuf); |
| 796 | vfree(server->txbuf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | vfree(server->packet); |
Al Viro | 1dcddd4 | 2013-10-03 13:22:44 -0400 | [diff] [blame] | 798 | call_rcu(&server->rcu, delayed_free); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 799 | } |
| 800 | |
David Howells | 726c334 | 2006-06-23 02:02:58 -0700 | [diff] [blame] | 801 | static int ncp_statfs(struct dentry *dentry, struct kstatfs *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 802 | { |
| 803 | struct dentry* d; |
| 804 | struct inode* i; |
| 805 | struct ncp_inode_info* ni; |
| 806 | struct ncp_server* s; |
| 807 | struct ncp_volume_info vi; |
David Howells | 726c334 | 2006-06-23 02:02:58 -0700 | [diff] [blame] | 808 | struct super_block *sb = dentry->d_sb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 809 | int err; |
| 810 | __u8 dh; |
| 811 | |
| 812 | d = sb->s_root; |
| 813 | if (!d) { |
| 814 | goto dflt; |
| 815 | } |
| 816 | i = d->d_inode; |
| 817 | if (!i) { |
| 818 | goto dflt; |
| 819 | } |
| 820 | ni = NCP_FINFO(i); |
| 821 | if (!ni) { |
| 822 | goto dflt; |
| 823 | } |
| 824 | s = NCP_SBP(sb); |
| 825 | if (!s) { |
| 826 | goto dflt; |
| 827 | } |
| 828 | if (!s->m.mounted_vol[0]) { |
| 829 | goto dflt; |
| 830 | } |
| 831 | |
| 832 | err = ncp_dirhandle_alloc(s, ni->volNumber, ni->DosDirNum, &dh); |
| 833 | if (err) { |
| 834 | goto dflt; |
| 835 | } |
| 836 | err = ncp_get_directory_info(s, dh, &vi); |
| 837 | ncp_dirhandle_free(s, dh); |
| 838 | if (err) { |
| 839 | goto dflt; |
| 840 | } |
| 841 | buf->f_type = NCP_SUPER_MAGIC; |
| 842 | buf->f_bsize = vi.sectors_per_block * 512; |
| 843 | buf->f_blocks = vi.total_blocks; |
| 844 | buf->f_bfree = vi.free_blocks; |
| 845 | buf->f_bavail = vi.free_blocks; |
| 846 | buf->f_files = vi.total_dir_entries; |
| 847 | buf->f_ffree = vi.available_dir_entries; |
| 848 | buf->f_namelen = 12; |
| 849 | return 0; |
| 850 | |
| 851 | /* We cannot say how much disk space is left on a mounted |
| 852 | NetWare Server, because free space is distributed over |
| 853 | volumes, and the current user might have disk quotas. So |
| 854 | free space is not that simple to determine. Our decision |
| 855 | here is to err conservatively. */ |
| 856 | |
| 857 | dflt:; |
| 858 | buf->f_type = NCP_SUPER_MAGIC; |
| 859 | buf->f_bsize = NCP_BLOCK_SIZE; |
| 860 | buf->f_blocks = 0; |
| 861 | buf->f_bfree = 0; |
| 862 | buf->f_bavail = 0; |
| 863 | buf->f_namelen = 12; |
| 864 | return 0; |
| 865 | } |
| 866 | |
| 867 | int ncp_notify_change(struct dentry *dentry, struct iattr *attr) |
| 868 | { |
| 869 | struct inode *inode = dentry->d_inode; |
| 870 | int result = 0; |
| 871 | __le32 info_mask; |
| 872 | struct nw_modify_dos_info info; |
| 873 | struct ncp_server *server; |
| 874 | |
| 875 | result = -EIO; |
| 876 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 877 | server = NCP_SERVER(inode); |
Petr Vandrovec | 2e54eb9 | 2010-09-27 01:47:33 +0200 | [diff] [blame] | 878 | if (!server) /* How this could happen? */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 879 | goto out; |
| 880 | |
Al Viro | 338b2f5 | 2013-06-15 05:53:23 +0400 | [diff] [blame] | 881 | result = -EPERM; |
| 882 | if (IS_DEADDIR(dentry->d_inode)) |
| 883 | goto out; |
| 884 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 885 | /* ageing the dentry to force validation */ |
| 886 | ncp_age_dentry(server, dentry); |
| 887 | |
| 888 | result = inode_change_ok(inode, attr); |
| 889 | if (result < 0) |
| 890 | goto out; |
| 891 | |
| 892 | result = -EPERM; |
Eric W. Biederman | 1ac7fd8 | 2012-02-07 16:28:28 -0800 | [diff] [blame] | 893 | if ((attr->ia_valid & ATTR_UID) && !uid_eq(attr->ia_uid, server->m.uid)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 894 | goto out; |
| 895 | |
Eric W. Biederman | 1ac7fd8 | 2012-02-07 16:28:28 -0800 | [diff] [blame] | 896 | if ((attr->ia_valid & ATTR_GID) && !gid_eq(attr->ia_gid, server->m.gid)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 897 | goto out; |
| 898 | |
| 899 | if (((attr->ia_valid & ATTR_MODE) && |
| 900 | (attr->ia_mode & |
| 901 | ~(S_IFREG | S_IFDIR | S_IRWXUGO)))) |
| 902 | goto out; |
| 903 | |
| 904 | info_mask = 0; |
| 905 | memset(&info, 0, sizeof(info)); |
| 906 | |
| 907 | #if 1 |
| 908 | if ((attr->ia_valid & ATTR_MODE) != 0) |
| 909 | { |
| 910 | umode_t newmode = attr->ia_mode; |
| 911 | |
| 912 | info_mask |= DM_ATTRIBUTES; |
| 913 | |
| 914 | if (S_ISDIR(inode->i_mode)) { |
| 915 | newmode &= server->m.dir_mode; |
| 916 | } else { |
| 917 | #ifdef CONFIG_NCPFS_EXTRAS |
| 918 | if (server->m.flags & NCP_MOUNT_EXTRAS) { |
| 919 | /* any non-default execute bit set */ |
| 920 | if (newmode & ~server->m.file_mode & S_IXUGO) |
| 921 | info.attributes |= aSHARED | aSYSTEM; |
| 922 | /* read for group/world and not in default file_mode */ |
| 923 | else if (newmode & ~server->m.file_mode & S_IRUGO) |
| 924 | info.attributes |= aSHARED; |
| 925 | } else |
| 926 | #endif |
| 927 | newmode &= server->m.file_mode; |
| 928 | } |
| 929 | if (newmode & S_IWUGO) |
| 930 | info.attributes &= ~(aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT); |
| 931 | else |
| 932 | info.attributes |= (aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT); |
| 933 | |
| 934 | #ifdef CONFIG_NCPFS_NFS_NS |
| 935 | if (ncp_is_nfs_extras(server, NCP_FINFO(inode)->volNumber)) { |
| 936 | result = ncp_modify_nfs_info(server, |
| 937 | NCP_FINFO(inode)->volNumber, |
| 938 | NCP_FINFO(inode)->dirEntNum, |
| 939 | attr->ia_mode, 0); |
| 940 | if (result != 0) |
| 941 | goto out; |
| 942 | info.attributes &= ~(aSHARED | aSYSTEM); |
| 943 | { |
| 944 | /* mark partial success */ |
| 945 | struct iattr tmpattr; |
| 946 | |
| 947 | tmpattr.ia_valid = ATTR_MODE; |
| 948 | tmpattr.ia_mode = attr->ia_mode; |
| 949 | |
Christoph Hellwig | 1025774 | 2010-06-04 11:30:02 +0200 | [diff] [blame] | 950 | setattr_copy(inode, &tmpattr); |
| 951 | mark_inode_dirty(inode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 952 | } |
| 953 | } |
| 954 | #endif |
| 955 | } |
| 956 | #endif |
| 957 | |
| 958 | /* Do SIZE before attributes, otherwise mtime together with size does not work... |
| 959 | */ |
| 960 | if ((attr->ia_valid & ATTR_SIZE) != 0) { |
| 961 | int written; |
| 962 | |
Joe Perches | 15a03ac | 2014-04-08 16:04:18 -0700 | [diff] [blame] | 963 | ncp_dbg(1, "trying to change size to %llu\n", attr->ia_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 964 | |
| 965 | if ((result = ncp_make_open(inode, O_WRONLY)) < 0) { |
| 966 | result = -EACCES; |
| 967 | goto out; |
| 968 | } |
| 969 | ncp_write_kernel(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle, |
| 970 | attr->ia_size, 0, "", &written); |
| 971 | |
| 972 | /* According to ndir, the changes only take effect after |
| 973 | closing the file */ |
| 974 | ncp_inode_close(inode); |
| 975 | result = ncp_make_closed(inode); |
| 976 | if (result) |
| 977 | goto out; |
Christoph Hellwig | 1025774 | 2010-06-04 11:30:02 +0200 | [diff] [blame] | 978 | |
| 979 | if (attr->ia_size != i_size_read(inode)) { |
Marco Stornelli | 3e7a806 | 2012-12-15 11:57:03 +0100 | [diff] [blame] | 980 | truncate_setsize(inode, attr->ia_size); |
Christoph Hellwig | 1025774 | 2010-06-04 11:30:02 +0200 | [diff] [blame] | 981 | mark_inode_dirty(inode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 982 | } |
| 983 | } |
| 984 | if ((attr->ia_valid & ATTR_CTIME) != 0) { |
| 985 | info_mask |= (DM_CREATE_TIME | DM_CREATE_DATE); |
| 986 | ncp_date_unix2dos(attr->ia_ctime.tv_sec, |
| 987 | &info.creationTime, &info.creationDate); |
| 988 | } |
| 989 | if ((attr->ia_valid & ATTR_MTIME) != 0) { |
| 990 | info_mask |= (DM_MODIFY_TIME | DM_MODIFY_DATE); |
| 991 | ncp_date_unix2dos(attr->ia_mtime.tv_sec, |
| 992 | &info.modifyTime, &info.modifyDate); |
| 993 | } |
| 994 | if ((attr->ia_valid & ATTR_ATIME) != 0) { |
| 995 | __le16 dummy; |
| 996 | info_mask |= (DM_LAST_ACCESS_DATE); |
| 997 | ncp_date_unix2dos(attr->ia_atime.tv_sec, |
| 998 | &dummy, &info.lastAccessDate); |
| 999 | } |
| 1000 | if (info_mask != 0) { |
| 1001 | result = ncp_modify_file_or_subdir_dos_info(NCP_SERVER(inode), |
| 1002 | inode, info_mask, &info); |
| 1003 | if (result != 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1004 | if (info_mask == (DM_CREATE_TIME | DM_CREATE_DATE)) { |
| 1005 | /* NetWare seems not to allow this. I |
| 1006 | do not know why. So, just tell the |
| 1007 | user everything went fine. This is |
| 1008 | a terrible hack, but I do not know |
| 1009 | how to do this correctly. */ |
| 1010 | result = 0; |
| 1011 | } else |
| 1012 | goto out; |
| 1013 | } |
| 1014 | #ifdef CONFIG_NCPFS_STRONG |
| 1015 | if ((!result) && (info_mask & DM_ATTRIBUTES)) |
| 1016 | NCP_FINFO(inode)->nwattr = info.attributes; |
| 1017 | #endif |
| 1018 | } |
Christoph Hellwig | 1025774 | 2010-06-04 11:30:02 +0200 | [diff] [blame] | 1019 | if (result) |
| 1020 | goto out; |
| 1021 | |
| 1022 | setattr_copy(inode, attr); |
| 1023 | mark_inode_dirty(inode); |
| 1024 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1025 | out: |
Petr Vandrovec | 2e54eb9 | 2010-09-27 01:47:33 +0200 | [diff] [blame] | 1026 | if (result > 0) |
| 1027 | result = -EACCES; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1028 | return result; |
| 1029 | } |
| 1030 | |
Al Viro | 3c26ff6 | 2010-07-25 11:46:36 +0400 | [diff] [blame] | 1031 | static struct dentry *ncp_mount(struct file_system_type *fs_type, |
| 1032 | int flags, const char *dev_name, void *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1033 | { |
Al Viro | 3c26ff6 | 2010-07-25 11:46:36 +0400 | [diff] [blame] | 1034 | return mount_nodev(fs_type, flags, data, ncp_fill_super); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1035 | } |
| 1036 | |
| 1037 | static struct file_system_type ncp_fs_type = { |
| 1038 | .owner = THIS_MODULE, |
| 1039 | .name = "ncpfs", |
Al Viro | 3c26ff6 | 2010-07-25 11:46:36 +0400 | [diff] [blame] | 1040 | .mount = ncp_mount, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1041 | .kill_sb = kill_anon_super, |
Miklos Szeredi | 564cd13 | 2008-02-08 04:21:46 -0800 | [diff] [blame] | 1042 | .fs_flags = FS_BINARY_MOUNTDATA, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1043 | }; |
Eric W. Biederman | 7f78e03 | 2013-03-02 19:39:14 -0800 | [diff] [blame] | 1044 | MODULE_ALIAS_FS("ncpfs"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1045 | |
| 1046 | static int __init init_ncp_fs(void) |
| 1047 | { |
| 1048 | int err; |
Joe Perches | d3b73ca | 2014-04-08 16:04:15 -0700 | [diff] [blame] | 1049 | ncp_dbg(1, "called\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1050 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1051 | err = init_inodecache(); |
| 1052 | if (err) |
| 1053 | goto out1; |
| 1054 | err = register_filesystem(&ncp_fs_type); |
| 1055 | if (err) |
| 1056 | goto out; |
| 1057 | return 0; |
| 1058 | out: |
| 1059 | destroy_inodecache(); |
| 1060 | out1: |
| 1061 | return err; |
| 1062 | } |
| 1063 | |
| 1064 | static void __exit exit_ncp_fs(void) |
| 1065 | { |
Joe Perches | d3b73ca | 2014-04-08 16:04:15 -0700 | [diff] [blame] | 1066 | ncp_dbg(1, "called\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1067 | unregister_filesystem(&ncp_fs_type); |
| 1068 | destroy_inodecache(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1069 | } |
| 1070 | |
| 1071 | module_init(init_ncp_fs) |
| 1072 | module_exit(exit_ncp_fs) |
| 1073 | MODULE_LICENSE("GPL"); |