Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * fs/cifs/inode.c |
| 3 | * |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 4 | * Copyright (C) International Business Machines Corp., 2002,2007 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | * Author(s): Steve French (sfrench@us.ibm.com) |
| 6 | * |
| 7 | * This library is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU Lesser General Public License as published |
| 9 | * by the Free Software Foundation; either version 2.1 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This library is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| 15 | * the GNU Lesser General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Lesser General Public License |
| 18 | * along with this library; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 | */ |
| 21 | #include <linux/fs.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | #include <linux/stat.h> |
| 23 | #include <linux/pagemap.h> |
| 24 | #include <asm/div64.h> |
| 25 | #include "cifsfs.h" |
| 26 | #include "cifspdu.h" |
| 27 | #include "cifsglob.h" |
| 28 | #include "cifsproto.h" |
| 29 | #include "cifs_debug.h" |
| 30 | #include "cifs_fs_sb.h" |
| 31 | |
| 32 | int cifs_get_inode_info_unix(struct inode **pinode, |
| 33 | const unsigned char *search_path, struct super_block *sb, int xid) |
| 34 | { |
| 35 | int rc = 0; |
| 36 | FILE_UNIX_BASIC_INFO findData; |
| 37 | struct cifsTconInfo *pTcon; |
| 38 | struct inode *inode; |
| 39 | struct cifs_sb_info *cifs_sb = CIFS_SB(sb); |
| 40 | char *tmp_path; |
| 41 | |
| 42 | pTcon = cifs_sb->tcon; |
Steve French | 26a21b9 | 2006-05-31 18:05:34 +0000 | [diff] [blame] | 43 | cFYI(1, ("Getting info on %s", search_path)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | /* could have done a find first instead but this returns more info */ |
| 45 | rc = CIFSSMBUnixQPathInfo(xid, pTcon, search_path, &findData, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 46 | cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & |
| 47 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | /* dump_mem("\nUnixQPathInfo return data", &findData, |
| 49 | sizeof(findData)); */ |
| 50 | if (rc) { |
| 51 | if (rc == -EREMOTE) { |
| 52 | tmp_path = |
| 53 | kmalloc(strnlen(pTcon->treeName, |
| 54 | MAX_TREE_SIZE + 1) + |
| 55 | strnlen(search_path, MAX_PATHCONF) + 1, |
| 56 | GFP_KERNEL); |
Steve French | f6d0998 | 2008-01-08 23:18:22 +0000 | [diff] [blame] | 57 | if (tmp_path == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | return -ENOMEM; |
Steve French | f6d0998 | 2008-01-08 23:18:22 +0000 | [diff] [blame] | 59 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 60 | /* have to skip first of the double backslash of |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | UNC name */ |
| 62 | strncpy(tmp_path, pTcon->treeName, MAX_TREE_SIZE); |
| 63 | strncat(tmp_path, search_path, MAX_PATHCONF); |
| 64 | rc = connect_to_dfs_path(xid, pTcon->ses, |
| 65 | /* treename + */ tmp_path, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 66 | cifs_sb->local_nls, |
| 67 | cifs_sb->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 68 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | kfree(tmp_path); |
| 70 | |
| 71 | /* BB fix up inode etc. */ |
| 72 | } else if (rc) { |
| 73 | return rc; |
| 74 | } |
| 75 | } else { |
| 76 | struct cifsInodeInfo *cifsInfo; |
| 77 | __u32 type = le32_to_cpu(findData.Type); |
| 78 | __u64 num_of_bytes = le64_to_cpu(findData.NumOfBytes); |
| 79 | __u64 end_of_file = le64_to_cpu(findData.EndOfFile); |
| 80 | |
| 81 | /* get new inode */ |
| 82 | if (*pinode == NULL) { |
| 83 | *pinode = new_inode(sb); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 84 | if (*pinode == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | return -ENOMEM; |
| 86 | /* Is an i_ino of zero legal? */ |
| 87 | /* Are there sanity checks we can use to ensure that |
| 88 | the server is really filling in that field? */ |
Steve French | d0d2f2d | 2005-06-02 15:12:36 -0700 | [diff] [blame] | 89 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | (*pinode)->i_ino = |
| 91 | (unsigned long)findData.UniqueId; |
| 92 | } /* note ino incremented to unique num in new_inode */ |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 93 | if (sb->s_flags & MS_NOATIME) |
Steve French | 1b2b212 | 2007-02-17 04:30:54 +0000 | [diff] [blame] | 94 | (*pinode)->i_flags |= S_NOATIME | S_NOCMTIME; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 95 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | insert_inode_hash(*pinode); |
| 97 | } |
| 98 | |
| 99 | inode = *pinode; |
| 100 | cifsInfo = CIFS_I(inode); |
| 101 | |
Steve French | 26a21b9 | 2006-05-31 18:05:34 +0000 | [diff] [blame] | 102 | cFYI(1, ("Old time %ld", cifsInfo->time)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | cifsInfo->time = jiffies; |
Steve French | 26a21b9 | 2006-05-31 18:05:34 +0000 | [diff] [blame] | 104 | cFYI(1, ("New time %ld", cifsInfo->time)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | /* this is ok to set on every inode revalidate */ |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 106 | atomic_set(&cifsInfo->inUse, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | |
| 108 | inode->i_atime = |
| 109 | cifs_NTtimeToUnix(le64_to_cpu(findData.LastAccessTime)); |
| 110 | inode->i_mtime = |
| 111 | cifs_NTtimeToUnix(le64_to_cpu |
| 112 | (findData.LastModificationTime)); |
| 113 | inode->i_ctime = |
| 114 | cifs_NTtimeToUnix(le64_to_cpu(findData.LastStatusChange)); |
| 115 | inode->i_mode = le64_to_cpu(findData.Permissions); |
Steve French | 3020a1f | 2005-11-18 11:31:10 -0800 | [diff] [blame] | 116 | /* since we set the inode type below we need to mask off |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 117 | to avoid strange results if bits set above */ |
Steve French | 7f8ed42 | 2007-09-28 22:28:55 +0000 | [diff] [blame] | 118 | inode->i_mode &= ~S_IFMT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | if (type == UNIX_FILE) { |
| 120 | inode->i_mode |= S_IFREG; |
| 121 | } else if (type == UNIX_SYMLINK) { |
| 122 | inode->i_mode |= S_IFLNK; |
| 123 | } else if (type == UNIX_DIR) { |
| 124 | inode->i_mode |= S_IFDIR; |
| 125 | } else if (type == UNIX_CHARDEV) { |
| 126 | inode->i_mode |= S_IFCHR; |
| 127 | inode->i_rdev = MKDEV(le64_to_cpu(findData.DevMajor), |
| 128 | le64_to_cpu(findData.DevMinor) & MINORMASK); |
| 129 | } else if (type == UNIX_BLOCKDEV) { |
| 130 | inode->i_mode |= S_IFBLK; |
| 131 | inode->i_rdev = MKDEV(le64_to_cpu(findData.DevMajor), |
| 132 | le64_to_cpu(findData.DevMinor) & MINORMASK); |
| 133 | } else if (type == UNIX_FIFO) { |
| 134 | inode->i_mode |= S_IFIFO; |
| 135 | } else if (type == UNIX_SOCKET) { |
| 136 | inode->i_mode |= S_IFSOCK; |
Steve French | 3020a1f | 2005-11-18 11:31:10 -0800 | [diff] [blame] | 137 | } else { |
| 138 | /* safest to call it a file if we do not know */ |
| 139 | inode->i_mode |= S_IFREG; |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 140 | cFYI(1, ("unknown type %d", type)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | } |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 142 | |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 143 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) |
| 144 | inode->i_uid = cifs_sb->mnt_uid; |
| 145 | else |
| 146 | inode->i_uid = le64_to_cpu(findData.Uid); |
| 147 | |
| 148 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) |
| 149 | inode->i_gid = cifs_sb->mnt_gid; |
| 150 | else |
| 151 | inode->i_gid = le64_to_cpu(findData.Gid); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 152 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | inode->i_nlink = le64_to_cpu(findData.Nlinks); |
| 154 | |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 155 | spin_lock(&inode->i_lock); |
Steve French | 7ba5263 | 2007-02-08 18:14:13 +0000 | [diff] [blame] | 156 | if (is_size_safe_to_change(cifsInfo, end_of_file)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | /* can not safely change the file size here if the |
| 158 | client is writing to it due to potential races */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | i_size_write(inode, end_of_file); |
| 160 | |
| 161 | /* blksize needs to be multiple of two. So safer to default to |
| 162 | blksize and blkbits set in superblock so 2**blkbits and blksize |
| 163 | will match rather than setting to: |
| 164 | (pTcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFE00;*/ |
| 165 | |
| 166 | /* This seems incredibly stupid but it turns out that i_blocks |
| 167 | is not related to (i_size / i_blksize), instead 512 byte size |
| 168 | is required for calculating num blocks */ |
| 169 | |
| 170 | /* 512 bytes (2**9) is the fake blocksize that must be used */ |
| 171 | /* for this calculation */ |
| 172 | inode->i_blocks = (512 - 1 + num_of_bytes) >> 9; |
| 173 | } |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 174 | spin_unlock(&inode->i_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | |
| 176 | if (num_of_bytes < end_of_file) |
Steve French | 8b94bcb | 2005-11-11 11:41:00 -0800 | [diff] [blame] | 177 | cFYI(1, ("allocation size less than end of file")); |
Andrew Morton | 5515eff | 2006-03-26 01:37:53 -0800 | [diff] [blame] | 178 | cFYI(1, ("Size %ld and blocks %llu", |
| 179 | (unsigned long) inode->i_size, |
| 180 | (unsigned long long)inode->i_blocks)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | if (S_ISREG(inode->i_mode)) { |
Steve French | 8b94bcb | 2005-11-11 11:41:00 -0800 | [diff] [blame] | 182 | cFYI(1, ("File inode")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | inode->i_op = &cifs_file_inode_ops; |
Steve French | 8b94bcb | 2005-11-11 11:41:00 -0800 | [diff] [blame] | 184 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { |
| 185 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 186 | inode->i_fop = |
Steve French | 8b94bcb | 2005-11-11 11:41:00 -0800 | [diff] [blame] | 187 | &cifs_file_direct_nobrl_ops; |
| 188 | else |
| 189 | inode->i_fop = &cifs_file_direct_ops; |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 190 | } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) |
Steve French | 8b94bcb | 2005-11-11 11:41:00 -0800 | [diff] [blame] | 191 | inode->i_fop = &cifs_file_nobrl_ops; |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 192 | else /* not direct, send byte range locks */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | inode->i_fop = &cifs_file_ops; |
Steve French | 8b94bcb | 2005-11-11 11:41:00 -0800 | [diff] [blame] | 194 | |
Steve French | bfa0d75 | 2005-08-31 21:50:37 -0700 | [diff] [blame] | 195 | /* check if server can support readpages */ |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 196 | if (pTcon->ses->server->maxBuf < |
Dave Kleikamp | 273d81d | 2006-06-01 19:41:23 +0000 | [diff] [blame] | 197 | PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE) |
| 198 | inode->i_data.a_ops = &cifs_addr_ops_smallbuf; |
| 199 | else |
| 200 | inode->i_data.a_ops = &cifs_addr_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | } else if (S_ISDIR(inode->i_mode)) { |
Steve French | 8b94bcb | 2005-11-11 11:41:00 -0800 | [diff] [blame] | 202 | cFYI(1, ("Directory inode")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | inode->i_op = &cifs_dir_inode_ops; |
| 204 | inode->i_fop = &cifs_dir_ops; |
| 205 | } else if (S_ISLNK(inode->i_mode)) { |
Steve French | 8b94bcb | 2005-11-11 11:41:00 -0800 | [diff] [blame] | 206 | cFYI(1, ("Symbolic Link inode")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | inode->i_op = &cifs_symlink_inode_ops; |
| 208 | /* tmp_inode->i_fop = */ /* do not need to set to anything */ |
| 209 | } else { |
Steve French | 8b94bcb | 2005-11-11 11:41:00 -0800 | [diff] [blame] | 210 | cFYI(1, ("Init special inode")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | init_special_inode(inode, inode->i_mode, |
| 212 | inode->i_rdev); |
| 213 | } |
| 214 | } |
| 215 | return rc; |
| 216 | } |
| 217 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 218 | static int decode_sfu_inode(struct inode *inode, __u64 size, |
Steve French | d6e2f2a | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 219 | const unsigned char *path, |
| 220 | struct cifs_sb_info *cifs_sb, int xid) |
| 221 | { |
| 222 | int rc; |
| 223 | int oplock = FALSE; |
| 224 | __u16 netfid; |
| 225 | struct cifsTconInfo *pTcon = cifs_sb->tcon; |
Steve French | 86c96b4 | 2005-11-18 20:25:31 -0800 | [diff] [blame] | 226 | char buf[24]; |
Steve French | d6e2f2a | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 227 | unsigned int bytes_read; |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 228 | char *pbuf; |
Steve French | d6e2f2a | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 229 | |
| 230 | pbuf = buf; |
| 231 | |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 232 | if (size == 0) { |
Steve French | d6e2f2a | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 233 | inode->i_mode |= S_IFIFO; |
| 234 | return 0; |
| 235 | } else if (size < 8) { |
| 236 | return -EINVAL; /* EOPNOTSUPP? */ |
| 237 | } |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 238 | |
Steve French | d6e2f2a | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 239 | rc = CIFSSMBOpen(xid, pTcon, path, FILE_OPEN, GENERIC_READ, |
| 240 | CREATE_NOT_DIR, &netfid, &oplock, NULL, |
| 241 | cifs_sb->local_nls, |
| 242 | cifs_sb->mnt_cifs_flags & |
| 243 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 244 | if (rc == 0) { |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 245 | int buf_type = CIFS_NO_BUFFER; |
Steve French | d6e2f2a | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 246 | /* Read header */ |
| 247 | rc = CIFSSMBRead(xid, pTcon, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 248 | netfid, |
Steve French | 86c96b4 | 2005-11-18 20:25:31 -0800 | [diff] [blame] | 249 | 24 /* length */, 0 /* offset */, |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 250 | &bytes_read, &pbuf, &buf_type); |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 251 | if ((rc == 0) && (bytes_read >= 8)) { |
| 252 | if (memcmp("IntxBLK", pbuf, 8) == 0) { |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 253 | cFYI(1, ("Block device")); |
Steve French | 3020a1f | 2005-11-18 11:31:10 -0800 | [diff] [blame] | 254 | inode->i_mode |= S_IFBLK; |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 255 | if (bytes_read == 24) { |
Steve French | 86c96b4 | 2005-11-18 20:25:31 -0800 | [diff] [blame] | 256 | /* we have enough to decode dev num */ |
| 257 | __u64 mjr; /* major */ |
| 258 | __u64 mnr; /* minor */ |
| 259 | mjr = le64_to_cpu(*(__le64 *)(pbuf+8)); |
| 260 | mnr = le64_to_cpu(*(__le64 *)(pbuf+16)); |
| 261 | inode->i_rdev = MKDEV(mjr, mnr); |
| 262 | } |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 263 | } else if (memcmp("IntxCHR", pbuf, 8) == 0) { |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 264 | cFYI(1, ("Char device")); |
Steve French | 3020a1f | 2005-11-18 11:31:10 -0800 | [diff] [blame] | 265 | inode->i_mode |= S_IFCHR; |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 266 | if (bytes_read == 24) { |
Steve French | 86c96b4 | 2005-11-18 20:25:31 -0800 | [diff] [blame] | 267 | /* we have enough to decode dev num */ |
| 268 | __u64 mjr; /* major */ |
| 269 | __u64 mnr; /* minor */ |
| 270 | mjr = le64_to_cpu(*(__le64 *)(pbuf+8)); |
| 271 | mnr = le64_to_cpu(*(__le64 *)(pbuf+16)); |
| 272 | inode->i_rdev = MKDEV(mjr, mnr); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 273 | } |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 274 | } else if (memcmp("IntxLNK", pbuf, 7) == 0) { |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 275 | cFYI(1, ("Symlink")); |
Steve French | 3020a1f | 2005-11-18 11:31:10 -0800 | [diff] [blame] | 276 | inode->i_mode |= S_IFLNK; |
Steve French | 86c96b4 | 2005-11-18 20:25:31 -0800 | [diff] [blame] | 277 | } else { |
| 278 | inode->i_mode |= S_IFREG; /* file? */ |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 279 | rc = -EOPNOTSUPP; |
Steve French | 86c96b4 | 2005-11-18 20:25:31 -0800 | [diff] [blame] | 280 | } |
Steve French | 3020a1f | 2005-11-18 11:31:10 -0800 | [diff] [blame] | 281 | } else { |
| 282 | inode->i_mode |= S_IFREG; /* then it is a file */ |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 283 | rc = -EOPNOTSUPP; /* or some unknown SFU type */ |
| 284 | } |
Steve French | d6e2f2a | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 285 | CIFSSMBClose(xid, pTcon, netfid); |
Steve French | d6e2f2a | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 286 | } |
| 287 | return rc; |
Steve French | d6e2f2a | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 288 | } |
| 289 | |
Steve French | 9e294f1 | 2005-11-17 16:59:21 -0800 | [diff] [blame] | 290 | #define SFBITS_MASK (S_ISVTX | S_ISGID | S_ISUID) /* SETFILEBITS valid bits */ |
| 291 | |
Steve French | 953f868 | 2007-10-31 04:54:42 +0000 | [diff] [blame] | 292 | static int get_sfu_mode(struct inode *inode, |
Steve French | 9e294f1 | 2005-11-17 16:59:21 -0800 | [diff] [blame] | 293 | const unsigned char *path, |
| 294 | struct cifs_sb_info *cifs_sb, int xid) |
| 295 | { |
Steve French | 3020a1f | 2005-11-18 11:31:10 -0800 | [diff] [blame] | 296 | #ifdef CONFIG_CIFS_XATTR |
Steve French | 9e294f1 | 2005-11-17 16:59:21 -0800 | [diff] [blame] | 297 | ssize_t rc; |
| 298 | char ea_value[4]; |
| 299 | __u32 mode; |
| 300 | |
| 301 | rc = CIFSSMBQueryEA(xid, cifs_sb->tcon, path, "SETFILEBITS", |
| 302 | ea_value, 4 /* size of buf */, cifs_sb->local_nls, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 303 | cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 304 | if (rc < 0) |
Steve French | 9e294f1 | 2005-11-17 16:59:21 -0800 | [diff] [blame] | 305 | return (int)rc; |
| 306 | else if (rc > 3) { |
| 307 | mode = le32_to_cpu(*((__le32 *)ea_value)); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 308 | inode->i_mode &= ~SFBITS_MASK; |
| 309 | cFYI(1, ("special bits 0%o org mode 0%o", mode, inode->i_mode)); |
Steve French | 9e294f1 | 2005-11-17 16:59:21 -0800 | [diff] [blame] | 310 | inode->i_mode = (mode & SFBITS_MASK) | inode->i_mode; |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 311 | cFYI(1, ("special mode bits 0%o", mode)); |
Steve French | 9e294f1 | 2005-11-17 16:59:21 -0800 | [diff] [blame] | 312 | return 0; |
| 313 | } else { |
| 314 | return 0; |
| 315 | } |
Steve French | 3020a1f | 2005-11-18 11:31:10 -0800 | [diff] [blame] | 316 | #else |
| 317 | return -EOPNOTSUPP; |
| 318 | #endif |
Steve French | 9e294f1 | 2005-11-17 16:59:21 -0800 | [diff] [blame] | 319 | } |
| 320 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | int cifs_get_inode_info(struct inode **pinode, |
| 322 | const unsigned char *search_path, FILE_ALL_INFO *pfindData, |
| 323 | struct super_block *sb, int xid) |
| 324 | { |
| 325 | int rc = 0; |
| 326 | struct cifsTconInfo *pTcon; |
| 327 | struct inode *inode; |
| 328 | struct cifs_sb_info *cifs_sb = CIFS_SB(sb); |
| 329 | char *tmp_path; |
| 330 | char *buf = NULL; |
Steve French | 8d6286f | 2006-11-16 22:48:25 +0000 | [diff] [blame] | 331 | int adjustTZ = FALSE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | |
| 333 | pTcon = cifs_sb->tcon; |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 334 | cFYI(1, ("Getting info on %s", search_path)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | |
Steve French | d0d2f2d | 2005-06-02 15:12:36 -0700 | [diff] [blame] | 336 | if ((pfindData == NULL) && (*pinode != NULL)) { |
| 337 | if (CIFS_I(*pinode)->clientCanCacheRead) { |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 338 | cFYI(1, ("No need to revalidate cached inode sizes")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | return rc; |
| 340 | } |
| 341 | } |
| 342 | |
| 343 | /* if file info not passed in then get it from server */ |
Steve French | d0d2f2d | 2005-06-02 15:12:36 -0700 | [diff] [blame] | 344 | if (pfindData == NULL) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL); |
Steve French | d0d2f2d | 2005-06-02 15:12:36 -0700 | [diff] [blame] | 346 | if (buf == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | return -ENOMEM; |
| 348 | pfindData = (FILE_ALL_INFO *)buf; |
| 349 | /* could do find first instead but this returns more info */ |
| 350 | rc = CIFSSMBQPathInfo(xid, pTcon, search_path, pfindData, |
Steve French | acf1a1b | 2006-10-12 03:28:28 +0000 | [diff] [blame] | 351 | 0 /* not legacy */, |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 352 | cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 353 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 354 | /* BB optimize code so we do not make the above call |
| 355 | when server claims no NT SMB support and the above call |
| 356 | failed at least once - set flag in tcon or mount */ |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 357 | if ((rc == -EOPNOTSUPP) || (rc == -EINVAL)) { |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 358 | rc = SMBQueryInformation(xid, pTcon, search_path, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 359 | pfindData, cifs_sb->local_nls, |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 360 | cifs_sb->mnt_cifs_flags & |
| 361 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | 8d6286f | 2006-11-16 22:48:25 +0000 | [diff] [blame] | 362 | adjustTZ = TRUE; |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 363 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | } |
| 365 | /* dump_mem("\nQPathInfo return data",&findData, sizeof(findData)); */ |
| 366 | if (rc) { |
| 367 | if (rc == -EREMOTE) { |
| 368 | tmp_path = |
| 369 | kmalloc(strnlen |
| 370 | (pTcon->treeName, |
| 371 | MAX_TREE_SIZE + 1) + |
| 372 | strnlen(search_path, MAX_PATHCONF) + 1, |
| 373 | GFP_KERNEL); |
| 374 | if (tmp_path == NULL) { |
| 375 | kfree(buf); |
| 376 | return -ENOMEM; |
| 377 | } |
| 378 | |
| 379 | strncpy(tmp_path, pTcon->treeName, MAX_TREE_SIZE); |
| 380 | strncat(tmp_path, search_path, MAX_PATHCONF); |
| 381 | rc = connect_to_dfs_path(xid, pTcon->ses, |
| 382 | /* treename + */ tmp_path, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 383 | cifs_sb->local_nls, |
| 384 | cifs_sb->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 385 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | kfree(tmp_path); |
| 387 | /* BB fix up inode etc. */ |
| 388 | } else if (rc) { |
| 389 | kfree(buf); |
| 390 | return rc; |
| 391 | } |
| 392 | } else { |
| 393 | struct cifsInodeInfo *cifsInfo; |
| 394 | __u32 attr = le32_to_cpu(pfindData->Attributes); |
| 395 | |
| 396 | /* get new inode */ |
| 397 | if (*pinode == NULL) { |
| 398 | *pinode = new_inode(sb); |
Steve French | acf1a1b | 2006-10-12 03:28:28 +0000 | [diff] [blame] | 399 | if (*pinode == NULL) { |
| 400 | kfree(buf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | return -ENOMEM; |
Steve French | acf1a1b | 2006-10-12 03:28:28 +0000 | [diff] [blame] | 402 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | /* Is an i_ino of zero legal? Can we use that to check |
| 404 | if the server supports returning inode numbers? Are |
| 405 | there other sanity checks we can use to ensure that |
| 406 | the server is really filling in that field? */ |
| 407 | |
| 408 | /* We can not use the IndexNumber field by default from |
| 409 | Windows or Samba (in ALL_INFO buf) but we can request |
| 410 | it explicitly. It may not be unique presumably if |
| 411 | the server has multiple devices mounted under one |
| 412 | share */ |
| 413 | |
| 414 | /* There may be higher info levels that work but are |
| 415 | there Windows server or network appliances for which |
| 416 | IndexNumber field is not guaranteed unique? */ |
| 417 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 418 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | int rc1 = 0; |
| 420 | __u64 inode_num; |
| 421 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 422 | rc1 = CIFSGetSrvInodeNumber(xid, pTcon, |
| 423 | search_path, &inode_num, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 424 | cifs_sb->local_nls, |
| 425 | cifs_sb->mnt_cifs_flags & |
| 426 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | d0d2f2d | 2005-06-02 15:12:36 -0700 | [diff] [blame] | 427 | if (rc1) { |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 428 | cFYI(1, ("GetSrvInodeNum rc %d", rc1)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 429 | /* BB EOPNOSUPP disable SERVER_INUM? */ |
| 430 | } else /* do we need cast or hash to ino? */ |
| 431 | (*pinode)->i_ino = inode_num; |
| 432 | } /* else ino incremented to unique num in new_inode*/ |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 433 | if (sb->s_flags & MS_NOATIME) |
Steve French | 1b2b212 | 2007-02-17 04:30:54 +0000 | [diff] [blame] | 434 | (*pinode)->i_flags |= S_NOATIME | S_NOCMTIME; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | insert_inode_hash(*pinode); |
| 436 | } |
| 437 | inode = *pinode; |
| 438 | cifsInfo = CIFS_I(inode); |
| 439 | cifsInfo->cifsAttrs = attr; |
Steve French | 26a21b9 | 2006-05-31 18:05:34 +0000 | [diff] [blame] | 440 | cFYI(1, ("Old time %ld", cifsInfo->time)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 441 | cifsInfo->time = jiffies; |
Steve French | 26a21b9 | 2006-05-31 18:05:34 +0000 | [diff] [blame] | 442 | cFYI(1, ("New time %ld", cifsInfo->time)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 443 | |
| 444 | /* blksize needs to be multiple of two. So safer to default to |
| 445 | blksize and blkbits set in superblock so 2**blkbits and blksize |
| 446 | will match rather than setting to: |
| 447 | (pTcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFE00;*/ |
| 448 | |
Steve French | 26a21b9 | 2006-05-31 18:05:34 +0000 | [diff] [blame] | 449 | /* Linux can not store file creation time so ignore it */ |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 450 | if (pfindData->LastAccessTime) |
Steve French | 1bd5bbc | 2006-09-28 03:35:57 +0000 | [diff] [blame] | 451 | inode->i_atime = cifs_NTtimeToUnix |
| 452 | (le64_to_cpu(pfindData->LastAccessTime)); |
| 453 | else /* do not need to use current_fs_time - time not stored */ |
| 454 | inode->i_atime = CURRENT_TIME; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | inode->i_mtime = |
| 456 | cifs_NTtimeToUnix(le64_to_cpu(pfindData->LastWriteTime)); |
| 457 | inode->i_ctime = |
| 458 | cifs_NTtimeToUnix(le64_to_cpu(pfindData->ChangeTime)); |
Steve French | 26a21b9 | 2006-05-31 18:05:34 +0000 | [diff] [blame] | 459 | cFYI(0, ("Attributes came in as 0x%x", attr)); |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 460 | if (adjustTZ && (pTcon->ses) && (pTcon->ses->server)) { |
Steve French | 8d6286f | 2006-11-16 22:48:25 +0000 | [diff] [blame] | 461 | inode->i_ctime.tv_sec += pTcon->ses->server->timeAdj; |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 462 | inode->i_mtime.tv_sec += pTcon->ses->server->timeAdj; |
Steve French | 8d6286f | 2006-11-16 22:48:25 +0000 | [diff] [blame] | 463 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 464 | |
| 465 | /* set default mode. will override for dirs below */ |
| 466 | if (atomic_read(&cifsInfo->inUse) == 0) |
| 467 | /* new inode, can safely set these fields */ |
| 468 | inode->i_mode = cifs_sb->mnt_file_mode; |
Steve French | 3020a1f | 2005-11-18 11:31:10 -0800 | [diff] [blame] | 469 | else /* since we set the inode type below we need to mask off |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 470 | to avoid strange results if type changes and both |
| 471 | get orred in */ |
| 472 | inode->i_mode &= ~S_IFMT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | /* if (attr & ATTR_REPARSE) */ |
| 474 | /* We no longer handle these as symlinks because we could not |
| 475 | follow them due to the absolute path with drive letter */ |
| 476 | if (attr & ATTR_DIRECTORY) { |
| 477 | /* override default perms since we do not do byte range locking |
| 478 | on dirs */ |
| 479 | inode->i_mode = cifs_sb->mnt_dir_mode; |
| 480 | inode->i_mode |= S_IFDIR; |
Steve French | eda3c02 | 2005-07-21 15:20:28 -0700 | [diff] [blame] | 481 | } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) && |
| 482 | (cifsInfo->cifsAttrs & ATTR_SYSTEM) && |
| 483 | /* No need to le64 convert size of zero */ |
| 484 | (pfindData->EndOfFile == 0)) { |
| 485 | inode->i_mode = cifs_sb->mnt_file_mode; |
| 486 | inode->i_mode |= S_IFIFO; |
Steve French | d6e2f2a | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 487 | /* BB Finish for SFU style symlinks and devices */ |
| 488 | } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) && |
| 489 | (cifsInfo->cifsAttrs & ATTR_SYSTEM)) { |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 490 | if (decode_sfu_inode(inode, |
Steve French | d6e2f2a | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 491 | le64_to_cpu(pfindData->EndOfFile), |
| 492 | search_path, |
| 493 | cifs_sb, xid)) { |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 494 | cFYI(1, ("Unrecognized sfu inode type")); |
Steve French | d6e2f2a | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 495 | } |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 496 | cFYI(1, ("sfu mode 0%o", inode->i_mode)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | } else { |
| 498 | inode->i_mode |= S_IFREG; |
| 499 | /* treat the dos attribute of read-only as read-only |
| 500 | mode e.g. 555 */ |
| 501 | if (cifsInfo->cifsAttrs & ATTR_READONLY) |
| 502 | inode->i_mode &= ~(S_IWUGO); |
Alan Tyson | f5c1e2e | 2007-03-10 06:05:14 +0000 | [diff] [blame] | 503 | else if ((inode->i_mode & S_IWUGO) == 0) |
| 504 | /* the ATTR_READONLY flag may have been */ |
| 505 | /* changed on server -- set any w bits */ |
| 506 | /* allowed by mnt_file_mode */ |
| 507 | inode->i_mode |= (S_IWUGO & |
| 508 | cifs_sb->mnt_file_mode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | /* BB add code here - |
| 510 | validate if device or weird share or device type? */ |
| 511 | } |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 512 | |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 513 | spin_lock(&inode->i_lock); |
Steve French | f6d0998 | 2008-01-08 23:18:22 +0000 | [diff] [blame] | 514 | if (is_size_safe_to_change(cifsInfo, |
| 515 | le64_to_cpu(pfindData->EndOfFile))) { |
Steve French | 7ba5263 | 2007-02-08 18:14:13 +0000 | [diff] [blame] | 516 | /* can not safely shrink the file size here if the |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | client is writing to it due to potential races */ |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 518 | i_size_write(inode, le64_to_cpu(pfindData->EndOfFile)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | |
| 520 | /* 512 bytes (2**9) is the fake blocksize that must be |
| 521 | used for this calculation */ |
| 522 | inode->i_blocks = (512 - 1 + le64_to_cpu( |
| 523 | pfindData->AllocationSize)) >> 9; |
| 524 | } |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 525 | spin_unlock(&inode->i_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | |
| 527 | inode->i_nlink = le32_to_cpu(pfindData->NumberOfLinks); |
| 528 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 529 | /* BB fill in uid and gid here? with help from winbind? |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | or retrieve from NTFS stream extended attribute */ |
Steve French | 4879b44 | 2007-10-19 21:57:39 +0000 | [diff] [blame] | 531 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
Steve French | 953f868 | 2007-10-31 04:54:42 +0000 | [diff] [blame] | 532 | /* fill in 0777 bits from ACL */ |
Steve French | 4879b44 | 2007-10-19 21:57:39 +0000 | [diff] [blame] | 533 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) { |
| 534 | cFYI(1, ("Getting mode bits from ACL")); |
Steve French | 630f3f0 | 2007-10-25 21:17:17 +0000 | [diff] [blame] | 535 | acl_to_uid_mode(inode, search_path); |
Steve French | 4879b44 | 2007-10-19 21:57:39 +0000 | [diff] [blame] | 536 | } |
| 537 | #endif |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 538 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) { |
Steve French | 953f868 | 2007-10-31 04:54:42 +0000 | [diff] [blame] | 539 | /* fill in remaining high mode bits e.g. SUID, VTX */ |
| 540 | get_sfu_mode(inode, search_path, cifs_sb, xid); |
Steve French | 9e294f1 | 2005-11-17 16:59:21 -0800 | [diff] [blame] | 541 | } else if (atomic_read(&cifsInfo->inUse) == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 542 | inode->i_uid = cifs_sb->mnt_uid; |
| 543 | inode->i_gid = cifs_sb->mnt_gid; |
| 544 | /* set so we do not keep refreshing these fields with |
| 545 | bad data after user has changed them in memory */ |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 546 | atomic_set(&cifsInfo->inUse, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 547 | } |
| 548 | |
| 549 | if (S_ISREG(inode->i_mode)) { |
Steve French | d6e2f2a | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 550 | cFYI(1, ("File inode")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 551 | inode->i_op = &cifs_file_inode_ops; |
Steve French | 8b94bcb | 2005-11-11 11:41:00 -0800 | [diff] [blame] | 552 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { |
| 553 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) |
| 554 | inode->i_fop = |
| 555 | &cifs_file_direct_nobrl_ops; |
| 556 | else |
| 557 | inode->i_fop = &cifs_file_direct_ops; |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 558 | } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) |
Steve French | 8b94bcb | 2005-11-11 11:41:00 -0800 | [diff] [blame] | 559 | inode->i_fop = &cifs_file_nobrl_ops; |
| 560 | else /* not direct, send byte range locks */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | inode->i_fop = &cifs_file_ops; |
Steve French | 8b94bcb | 2005-11-11 11:41:00 -0800 | [diff] [blame] | 562 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 563 | if (pTcon->ses->server->maxBuf < |
Dave Kleikamp | 273d81d | 2006-06-01 19:41:23 +0000 | [diff] [blame] | 564 | PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE) |
| 565 | inode->i_data.a_ops = &cifs_addr_ops_smallbuf; |
| 566 | else |
| 567 | inode->i_data.a_ops = &cifs_addr_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 568 | } else if (S_ISDIR(inode->i_mode)) { |
Steve French | d6e2f2a | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 569 | cFYI(1, ("Directory inode")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | inode->i_op = &cifs_dir_inode_ops; |
| 571 | inode->i_fop = &cifs_dir_ops; |
| 572 | } else if (S_ISLNK(inode->i_mode)) { |
Steve French | d6e2f2a | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 573 | cFYI(1, ("Symbolic Link inode")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | inode->i_op = &cifs_symlink_inode_ops; |
| 575 | } else { |
| 576 | init_special_inode(inode, inode->i_mode, |
| 577 | inode->i_rdev); |
| 578 | } |
| 579 | } |
| 580 | kfree(buf); |
| 581 | return rc; |
| 582 | } |
| 583 | |
Steve French | 7f8ed42 | 2007-09-28 22:28:55 +0000 | [diff] [blame] | 584 | static const struct inode_operations cifs_ipc_inode_ops = { |
| 585 | .lookup = cifs_lookup, |
| 586 | }; |
| 587 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 588 | /* gets root inode */ |
| 589 | void cifs_read_inode(struct inode *inode) |
| 590 | { |
Steve French | 7f8ed42 | 2007-09-28 22:28:55 +0000 | [diff] [blame] | 591 | int xid, rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | struct cifs_sb_info *cifs_sb; |
| 593 | |
| 594 | cifs_sb = CIFS_SB(inode->i_sb); |
| 595 | xid = GetXid(); |
Steve French | c18c842 | 2007-07-18 23:21:09 +0000 | [diff] [blame] | 596 | |
| 597 | if (cifs_sb->tcon->unix_ext) |
Steve French | 7f8ed42 | 2007-09-28 22:28:55 +0000 | [diff] [blame] | 598 | rc = cifs_get_inode_info_unix(&inode, "", inode->i_sb, xid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 599 | else |
Steve French | 7f8ed42 | 2007-09-28 22:28:55 +0000 | [diff] [blame] | 600 | rc = cifs_get_inode_info(&inode, "", NULL, inode->i_sb, xid); |
| 601 | if (rc && cifs_sb->tcon->ipc) { |
| 602 | cFYI(1, ("ipc connection - fake read inode")); |
| 603 | inode->i_mode |= S_IFDIR; |
| 604 | inode->i_nlink = 2; |
| 605 | inode->i_op = &cifs_ipc_inode_ops; |
| 606 | inode->i_fop = &simple_dir_operations; |
| 607 | inode->i_uid = cifs_sb->mnt_uid; |
| 608 | inode->i_gid = cifs_sb->mnt_gid; |
| 609 | } |
| 610 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | /* can not call macro FreeXid here since in a void func */ |
| 612 | _FreeXid(xid); |
| 613 | } |
| 614 | |
| 615 | int cifs_unlink(struct inode *inode, struct dentry *direntry) |
| 616 | { |
| 617 | int rc = 0; |
| 618 | int xid; |
| 619 | struct cifs_sb_info *cifs_sb; |
| 620 | struct cifsTconInfo *pTcon; |
| 621 | char *full_path = NULL; |
| 622 | struct cifsInodeInfo *cifsInode; |
| 623 | FILE_BASIC_INFO *pinfo_buf; |
| 624 | |
Steve French | 06bcfed | 2006-03-31 22:43:50 +0000 | [diff] [blame] | 625 | cFYI(1, ("cifs_unlink, inode = 0x%p", inode)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 626 | |
| 627 | xid = GetXid(); |
| 628 | |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 629 | if (inode) |
Steve French | 6910ab3 | 2006-03-31 03:37:08 +0000 | [diff] [blame] | 630 | cifs_sb = CIFS_SB(inode->i_sb); |
| 631 | else |
Steve French | 06bcfed | 2006-03-31 22:43:50 +0000 | [diff] [blame] | 632 | cifs_sb = CIFS_SB(direntry->d_sb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 633 | pTcon = cifs_sb->tcon; |
| 634 | |
| 635 | /* Unlink can be called from rename so we can not grab the sem here |
| 636 | since we deadlock otherwise */ |
Arjan van de Ven | a11f3a0 | 2006-03-23 03:00:33 -0800 | [diff] [blame] | 637 | /* mutex_lock(&direntry->d_sb->s_vfs_rename_mutex);*/ |
Steve French | 7f57356 | 2005-08-30 11:32:14 -0700 | [diff] [blame] | 638 | full_path = build_path_from_dentry(direntry); |
Arjan van de Ven | a11f3a0 | 2006-03-23 03:00:33 -0800 | [diff] [blame] | 639 | /* mutex_unlock(&direntry->d_sb->s_vfs_rename_mutex);*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | if (full_path == NULL) { |
| 641 | FreeXid(xid); |
| 642 | return -ENOMEM; |
| 643 | } |
Steve French | 2d785a5 | 2007-07-15 01:48:57 +0000 | [diff] [blame] | 644 | |
| 645 | if ((pTcon->ses->capabilities & CAP_UNIX) && |
| 646 | (CIFS_UNIX_POSIX_PATH_OPS_CAP & |
| 647 | le64_to_cpu(pTcon->fsUnixInfo.Capability))) { |
| 648 | rc = CIFSPOSIXDelFile(xid, pTcon, full_path, |
| 649 | SMB_POSIX_UNLINK_FILE_TARGET, cifs_sb->local_nls, |
| 650 | cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); |
| 651 | cFYI(1, ("posix del rc %d", rc)); |
| 652 | if ((rc == 0) || (rc == -ENOENT)) |
| 653 | goto psx_del_no_retry; |
| 654 | } |
| 655 | |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 656 | rc = CIFSSMBDelFile(xid, pTcon, full_path, cifs_sb->local_nls, |
| 657 | cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | 2d785a5 | 2007-07-15 01:48:57 +0000 | [diff] [blame] | 658 | psx_del_no_retry: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 659 | if (!rc) { |
Steve French | d0d2f2d | 2005-06-02 15:12:36 -0700 | [diff] [blame] | 660 | if (direntry->d_inode) |
Dave Hansen | 9a53c3a | 2006-09-30 23:29:03 -0700 | [diff] [blame] | 661 | drop_nlink(direntry->d_inode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 662 | } else if (rc == -ENOENT) { |
| 663 | d_drop(direntry); |
| 664 | } else if (rc == -ETXTBSY) { |
| 665 | int oplock = FALSE; |
| 666 | __u16 netfid; |
| 667 | |
| 668 | rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN, DELETE, |
| 669 | CREATE_NOT_DIR | CREATE_DELETE_ON_CLOSE, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 670 | &netfid, &oplock, NULL, cifs_sb->local_nls, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 671 | cifs_sb->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 672 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 673 | if (rc == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 674 | CIFSSMBRenameOpenFile(xid, pTcon, netfid, NULL, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 675 | cifs_sb->local_nls, |
| 676 | cifs_sb->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 677 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 678 | CIFSSMBClose(xid, pTcon, netfid); |
Steve French | d0d2f2d | 2005-06-02 15:12:36 -0700 | [diff] [blame] | 679 | if (direntry->d_inode) |
Dave Hansen | 9a53c3a | 2006-09-30 23:29:03 -0700 | [diff] [blame] | 680 | drop_nlink(direntry->d_inode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 681 | } |
| 682 | } else if (rc == -EACCES) { |
| 683 | /* try only if r/o attribute set in local lookup data? */ |
Eric Sesterhenn | a048d7a | 2006-02-21 22:33:09 +0000 | [diff] [blame] | 684 | pinfo_buf = kzalloc(sizeof(FILE_BASIC_INFO), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | if (pinfo_buf) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | /* ATTRS set to normal clears r/o bit */ |
| 687 | pinfo_buf->Attributes = cpu_to_le32(ATTR_NORMAL); |
| 688 | if (!(pTcon->ses->flags & CIFS_SES_NT4)) |
| 689 | rc = CIFSSMBSetTimes(xid, pTcon, full_path, |
| 690 | pinfo_buf, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 691 | cifs_sb->local_nls, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 692 | cifs_sb->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 693 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | else |
| 695 | rc = -EOPNOTSUPP; |
| 696 | |
| 697 | if (rc == -EOPNOTSUPP) { |
| 698 | int oplock = FALSE; |
| 699 | __u16 netfid; |
| 700 | /* rc = CIFSSMBSetAttrLegacy(xid, pTcon, |
| 701 | full_path, |
| 702 | (__u16)ATTR_NORMAL, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 703 | cifs_sb->local_nls); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 704 | For some strange reason it seems that NT4 eats the |
| 705 | old setattr call without actually setting the |
| 706 | attributes so on to the third attempted workaround |
| 707 | */ |
| 708 | |
| 709 | /* BB could scan to see if we already have it open |
| 710 | and pass in pid of opener to function */ |
| 711 | rc = CIFSSMBOpen(xid, pTcon, full_path, |
| 712 | FILE_OPEN, SYNCHRONIZE | |
| 713 | FILE_WRITE_ATTRIBUTES, 0, |
| 714 | &netfid, &oplock, NULL, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 715 | cifs_sb->local_nls, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 716 | cifs_sb->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 717 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 718 | if (rc == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 719 | rc = CIFSSMBSetFileTimes(xid, pTcon, |
| 720 | pinfo_buf, |
| 721 | netfid); |
| 722 | CIFSSMBClose(xid, pTcon, netfid); |
| 723 | } |
| 724 | } |
| 725 | kfree(pinfo_buf); |
| 726 | } |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 727 | if (rc == 0) { |
| 728 | rc = CIFSSMBDelFile(xid, pTcon, full_path, |
| 729 | cifs_sb->local_nls, |
| 730 | cifs_sb->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 731 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 732 | if (!rc) { |
Steve French | d0d2f2d | 2005-06-02 15:12:36 -0700 | [diff] [blame] | 733 | if (direntry->d_inode) |
Dave Hansen | 9a53c3a | 2006-09-30 23:29:03 -0700 | [diff] [blame] | 734 | drop_nlink(direntry->d_inode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 735 | } else if (rc == -ETXTBSY) { |
| 736 | int oplock = FALSE; |
| 737 | __u16 netfid; |
| 738 | |
| 739 | rc = CIFSSMBOpen(xid, pTcon, full_path, |
| 740 | FILE_OPEN, DELETE, |
| 741 | CREATE_NOT_DIR | |
| 742 | CREATE_DELETE_ON_CLOSE, |
| 743 | &netfid, &oplock, NULL, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 744 | cifs_sb->local_nls, |
| 745 | cifs_sb->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 746 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 747 | if (rc == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 748 | CIFSSMBRenameOpenFile(xid, pTcon, |
| 749 | netfid, NULL, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 750 | cifs_sb->local_nls, |
| 751 | cifs_sb->mnt_cifs_flags & |
| 752 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 753 | CIFSSMBClose(xid, pTcon, netfid); |
Steve French | d0d2f2d | 2005-06-02 15:12:36 -0700 | [diff] [blame] | 754 | if (direntry->d_inode) |
Dave Hansen | 9a53c3a | 2006-09-30 23:29:03 -0700 | [diff] [blame] | 755 | drop_nlink(direntry->d_inode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 756 | } |
| 757 | /* BB if rc = -ETXTBUSY goto the rename logic BB */ |
| 758 | } |
| 759 | } |
| 760 | } |
Steve French | d0d2f2d | 2005-06-02 15:12:36 -0700 | [diff] [blame] | 761 | if (direntry->d_inode) { |
Steve French | b2aeb9d | 2005-05-17 13:16:18 -0500 | [diff] [blame] | 762 | cifsInode = CIFS_I(direntry->d_inode); |
| 763 | cifsInode->time = 0; /* will force revalidate to get info |
| 764 | when needed */ |
| 765 | direntry->d_inode->i_ctime = current_fs_time(inode->i_sb); |
| 766 | } |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 767 | if (inode) { |
Steve French | 06bcfed | 2006-03-31 22:43:50 +0000 | [diff] [blame] | 768 | inode->i_ctime = inode->i_mtime = current_fs_time(inode->i_sb); |
| 769 | cifsInode = CIFS_I(inode); |
| 770 | cifsInode->time = 0; /* force revalidate of dir as well */ |
| 771 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 772 | |
| 773 | kfree(full_path); |
| 774 | FreeXid(xid); |
| 775 | return rc; |
| 776 | } |
| 777 | |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 778 | static void posix_fill_in_inode(struct inode *tmp_inode, |
| 779 | FILE_UNIX_BASIC_INFO *pData, int *pobject_type, int isNewInode) |
| 780 | { |
| 781 | loff_t local_size; |
| 782 | struct timespec local_mtime; |
| 783 | |
| 784 | struct cifsInodeInfo *cifsInfo = CIFS_I(tmp_inode); |
| 785 | struct cifs_sb_info *cifs_sb = CIFS_SB(tmp_inode->i_sb); |
| 786 | |
| 787 | __u32 type = le32_to_cpu(pData->Type); |
| 788 | __u64 num_of_bytes = le64_to_cpu(pData->NumOfBytes); |
| 789 | __u64 end_of_file = le64_to_cpu(pData->EndOfFile); |
| 790 | cifsInfo->time = jiffies; |
| 791 | atomic_inc(&cifsInfo->inUse); |
| 792 | |
| 793 | /* save mtime and size */ |
| 794 | local_mtime = tmp_inode->i_mtime; |
| 795 | local_size = tmp_inode->i_size; |
| 796 | |
| 797 | tmp_inode->i_atime = |
| 798 | cifs_NTtimeToUnix(le64_to_cpu(pData->LastAccessTime)); |
| 799 | tmp_inode->i_mtime = |
| 800 | cifs_NTtimeToUnix(le64_to_cpu(pData->LastModificationTime)); |
| 801 | tmp_inode->i_ctime = |
| 802 | cifs_NTtimeToUnix(le64_to_cpu(pData->LastStatusChange)); |
| 803 | |
| 804 | tmp_inode->i_mode = le64_to_cpu(pData->Permissions); |
| 805 | /* since we set the inode type below we need to mask off type |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 806 | to avoid strange results if bits above were corrupt */ |
| 807 | tmp_inode->i_mode &= ~S_IFMT; |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 808 | if (type == UNIX_FILE) { |
| 809 | *pobject_type = DT_REG; |
| 810 | tmp_inode->i_mode |= S_IFREG; |
| 811 | } else if (type == UNIX_SYMLINK) { |
| 812 | *pobject_type = DT_LNK; |
| 813 | tmp_inode->i_mode |= S_IFLNK; |
| 814 | } else if (type == UNIX_DIR) { |
| 815 | *pobject_type = DT_DIR; |
| 816 | tmp_inode->i_mode |= S_IFDIR; |
| 817 | } else if (type == UNIX_CHARDEV) { |
| 818 | *pobject_type = DT_CHR; |
| 819 | tmp_inode->i_mode |= S_IFCHR; |
| 820 | tmp_inode->i_rdev = MKDEV(le64_to_cpu(pData->DevMajor), |
| 821 | le64_to_cpu(pData->DevMinor) & MINORMASK); |
| 822 | } else if (type == UNIX_BLOCKDEV) { |
| 823 | *pobject_type = DT_BLK; |
| 824 | tmp_inode->i_mode |= S_IFBLK; |
| 825 | tmp_inode->i_rdev = MKDEV(le64_to_cpu(pData->DevMajor), |
| 826 | le64_to_cpu(pData->DevMinor) & MINORMASK); |
| 827 | } else if (type == UNIX_FIFO) { |
| 828 | *pobject_type = DT_FIFO; |
| 829 | tmp_inode->i_mode |= S_IFIFO; |
| 830 | } else if (type == UNIX_SOCKET) { |
| 831 | *pobject_type = DT_SOCK; |
| 832 | tmp_inode->i_mode |= S_IFSOCK; |
| 833 | } else { |
| 834 | /* safest to just call it a file */ |
| 835 | *pobject_type = DT_REG; |
| 836 | tmp_inode->i_mode |= S_IFREG; |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 837 | cFYI(1, ("unknown inode type %d", type)); |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 838 | } |
| 839 | |
Steve French | cbac3cb | 2007-04-25 11:46:06 +0000 | [diff] [blame] | 840 | #ifdef CONFIG_CIFS_DEBUG2 |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 841 | cFYI(1, ("object type: %d", type)); |
Steve French | cbac3cb | 2007-04-25 11:46:06 +0000 | [diff] [blame] | 842 | #endif |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 843 | tmp_inode->i_uid = le64_to_cpu(pData->Uid); |
| 844 | tmp_inode->i_gid = le64_to_cpu(pData->Gid); |
| 845 | tmp_inode->i_nlink = le64_to_cpu(pData->Nlinks); |
| 846 | |
| 847 | spin_lock(&tmp_inode->i_lock); |
| 848 | if (is_size_safe_to_change(cifsInfo, end_of_file)) { |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 849 | /* can not safely change the file size here if the |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 850 | client is writing to it due to potential races */ |
| 851 | i_size_write(tmp_inode, end_of_file); |
| 852 | |
| 853 | /* 512 bytes (2**9) is the fake blocksize that must be used */ |
| 854 | /* for this calculation, not the real blocksize */ |
| 855 | tmp_inode->i_blocks = (512 - 1 + num_of_bytes) >> 9; |
| 856 | } |
| 857 | spin_unlock(&tmp_inode->i_lock); |
| 858 | |
| 859 | if (S_ISREG(tmp_inode->i_mode)) { |
| 860 | cFYI(1, ("File inode")); |
| 861 | tmp_inode->i_op = &cifs_file_inode_ops; |
| 862 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 863 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { |
| 864 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 865 | tmp_inode->i_fop = &cifs_file_direct_nobrl_ops; |
| 866 | else |
| 867 | tmp_inode->i_fop = &cifs_file_direct_ops; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 868 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 869 | } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 870 | tmp_inode->i_fop = &cifs_file_nobrl_ops; |
| 871 | else |
| 872 | tmp_inode->i_fop = &cifs_file_ops; |
| 873 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 874 | if ((cifs_sb->tcon) && (cifs_sb->tcon->ses) && |
| 875 | (cifs_sb->tcon->ses->server->maxBuf < |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 876 | PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE)) |
| 877 | tmp_inode->i_data.a_ops = &cifs_addr_ops_smallbuf; |
| 878 | else |
| 879 | tmp_inode->i_data.a_ops = &cifs_addr_ops; |
| 880 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 881 | if (isNewInode) |
| 882 | return; /* No sense invalidating pages for new inode |
| 883 | since we we have not started caching |
| 884 | readahead file data yet */ |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 885 | |
| 886 | if (timespec_equal(&tmp_inode->i_mtime, &local_mtime) && |
| 887 | (local_size == tmp_inode->i_size)) { |
| 888 | cFYI(1, ("inode exists but unchanged")); |
| 889 | } else { |
| 890 | /* file may have changed on server */ |
| 891 | cFYI(1, ("invalidate inode, readdir detected change")); |
| 892 | invalidate_remote_inode(tmp_inode); |
| 893 | } |
| 894 | } else if (S_ISDIR(tmp_inode->i_mode)) { |
| 895 | cFYI(1, ("Directory inode")); |
| 896 | tmp_inode->i_op = &cifs_dir_inode_ops; |
| 897 | tmp_inode->i_fop = &cifs_dir_ops; |
| 898 | } else if (S_ISLNK(tmp_inode->i_mode)) { |
| 899 | cFYI(1, ("Symbolic Link inode")); |
| 900 | tmp_inode->i_op = &cifs_symlink_inode_ops; |
| 901 | /* tmp_inode->i_fop = *//* do not need to set to anything */ |
| 902 | } else { |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 903 | cFYI(1, ("Special inode")); |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 904 | init_special_inode(tmp_inode, tmp_inode->i_mode, |
| 905 | tmp_inode->i_rdev); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 906 | } |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 907 | } |
| 908 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 909 | int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) |
| 910 | { |
| 911 | int rc = 0; |
| 912 | int xid; |
| 913 | struct cifs_sb_info *cifs_sb; |
| 914 | struct cifsTconInfo *pTcon; |
| 915 | char *full_path = NULL; |
| 916 | struct inode *newinode = NULL; |
| 917 | |
Steve French | 6473a55 | 2005-11-29 20:20:10 -0800 | [diff] [blame] | 918 | cFYI(1, ("In cifs_mkdir, mode = 0x%x inode = 0x%p", mode, inode)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 919 | |
| 920 | xid = GetXid(); |
| 921 | |
| 922 | cifs_sb = CIFS_SB(inode->i_sb); |
| 923 | pTcon = cifs_sb->tcon; |
| 924 | |
Steve French | 7f57356 | 2005-08-30 11:32:14 -0700 | [diff] [blame] | 925 | full_path = build_path_from_dentry(direntry); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 926 | if (full_path == NULL) { |
| 927 | FreeXid(xid); |
| 928 | return -ENOMEM; |
| 929 | } |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 930 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 931 | if ((pTcon->ses->capabilities & CAP_UNIX) && |
| 932 | (CIFS_UNIX_POSIX_PATH_OPS_CAP & |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 933 | le64_to_cpu(pTcon->fsUnixInfo.Capability))) { |
| 934 | u32 oplock = 0; |
Steve French | f6d0998 | 2008-01-08 23:18:22 +0000 | [diff] [blame] | 935 | FILE_UNIX_BASIC_INFO *pInfo = |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 936 | kzalloc(sizeof(FILE_UNIX_BASIC_INFO), GFP_KERNEL); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 937 | if (pInfo == NULL) { |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 938 | rc = -ENOMEM; |
| 939 | goto mkdir_out; |
| 940 | } |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 941 | |
Jeff | a8cd925 | 2007-09-13 18:38:50 +0000 | [diff] [blame] | 942 | mode &= ~current->fs->umask; |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 943 | rc = CIFSPOSIXCreate(xid, pTcon, SMB_O_DIRECTORY | SMB_O_CREAT, |
| 944 | mode, NULL /* netfid */, pInfo, &oplock, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 945 | full_path, cifs_sb->local_nls, |
| 946 | cifs_sb->mnt_cifs_flags & |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 947 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | c45d707 | 2007-09-17 02:04:21 +0000 | [diff] [blame] | 948 | if (rc == -EOPNOTSUPP) { |
| 949 | kfree(pInfo); |
| 950 | goto mkdir_retry_old; |
| 951 | } else if (rc) { |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 952 | cFYI(1, ("posix mkdir returned 0x%x", rc)); |
| 953 | d_drop(direntry); |
| 954 | } else { |
Steve French | cbac3cb | 2007-04-25 11:46:06 +0000 | [diff] [blame] | 955 | int obj_type; |
Cyril Gorcunov | 8f2376a | 2007-10-14 17:58:43 +0000 | [diff] [blame] | 956 | if (pInfo->Type == cpu_to_le32(-1)) { |
| 957 | /* no return info, go query for it */ |
Steve French | 5a07cdf | 2007-09-16 23:12:47 +0000 | [diff] [blame] | 958 | kfree(pInfo); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 959 | goto mkdir_get_info; |
Steve French | 5a07cdf | 2007-09-16 23:12:47 +0000 | [diff] [blame] | 960 | } |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 961 | /*BB check (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID ) to see if need |
| 962 | to set uid/gid */ |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 963 | inc_nlink(inode); |
| 964 | if (pTcon->nocase) |
| 965 | direntry->d_op = &cifs_ci_dentry_ops; |
| 966 | else |
| 967 | direntry->d_op = &cifs_dentry_ops; |
Steve French | cbac3cb | 2007-04-25 11:46:06 +0000 | [diff] [blame] | 968 | |
| 969 | newinode = new_inode(inode->i_sb); |
Steve French | 5a07cdf | 2007-09-16 23:12:47 +0000 | [diff] [blame] | 970 | if (newinode == NULL) { |
| 971 | kfree(pInfo); |
Steve French | cbac3cb | 2007-04-25 11:46:06 +0000 | [diff] [blame] | 972 | goto mkdir_get_info; |
Steve French | 5a07cdf | 2007-09-16 23:12:47 +0000 | [diff] [blame] | 973 | } |
Steve French | cbac3cb | 2007-04-25 11:46:06 +0000 | [diff] [blame] | 974 | /* Is an i_ino of zero legal? */ |
| 975 | /* Are there sanity checks we can use to ensure that |
| 976 | the server is really filling in that field? */ |
| 977 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) { |
| 978 | newinode->i_ino = |
| 979 | (unsigned long)pInfo->UniqueId; |
| 980 | } /* note ino incremented to unique num in new_inode */ |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 981 | if (inode->i_sb->s_flags & MS_NOATIME) |
Steve French | cbac3cb | 2007-04-25 11:46:06 +0000 | [diff] [blame] | 982 | newinode->i_flags |= S_NOATIME | S_NOCMTIME; |
| 983 | newinode->i_nlink = 2; |
| 984 | |
| 985 | insert_inode_hash(newinode); |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 986 | d_instantiate(direntry, newinode); |
Steve French | cbac3cb | 2007-04-25 11:46:06 +0000 | [diff] [blame] | 987 | |
| 988 | /* we already checked in POSIXCreate whether |
| 989 | frame was long enough */ |
| 990 | posix_fill_in_inode(direntry->d_inode, |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 991 | pInfo, &obj_type, 1 /* NewInode */); |
Steve French | cbac3cb | 2007-04-25 11:46:06 +0000 | [diff] [blame] | 992 | #ifdef CONFIG_CIFS_DEBUG2 |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 993 | cFYI(1, ("instantiated dentry %p %s to inode %p", |
Steve French | cbac3cb | 2007-04-25 11:46:06 +0000 | [diff] [blame] | 994 | direntry, direntry->d_name.name, newinode)); |
| 995 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 996 | if (newinode->i_nlink != 2) |
| 997 | cFYI(1, ("unexpected number of links %d", |
Steve French | cbac3cb | 2007-04-25 11:46:06 +0000 | [diff] [blame] | 998 | newinode->i_nlink)); |
| 999 | #endif |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 1000 | } |
| 1001 | kfree(pInfo); |
| 1002 | goto mkdir_out; |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1003 | } |
Steve French | c45d707 | 2007-09-17 02:04:21 +0000 | [diff] [blame] | 1004 | mkdir_retry_old: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1005 | /* BB add setting the equivalent of mode via CreateX w/ACLs */ |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1006 | rc = CIFSSMBMkDir(xid, pTcon, full_path, cifs_sb->local_nls, |
| 1007 | cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1008 | if (rc) { |
Steve French | 26a21b9 | 2006-05-31 18:05:34 +0000 | [diff] [blame] | 1009 | cFYI(1, ("cifs_mkdir returned 0x%x", rc)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1010 | d_drop(direntry); |
| 1011 | } else { |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1012 | mkdir_get_info: |
Dave Hansen | d8c76e6 | 2006-09-30 23:29:04 -0700 | [diff] [blame] | 1013 | inc_nlink(inode); |
Steve French | c18c842 | 2007-07-18 23:21:09 +0000 | [diff] [blame] | 1014 | if (pTcon->unix_ext) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1015 | rc = cifs_get_inode_info_unix(&newinode, full_path, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1016 | inode->i_sb, xid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1017 | else |
| 1018 | rc = cifs_get_inode_info(&newinode, full_path, NULL, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1019 | inode->i_sb, xid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1020 | |
Steve French | b92327f | 2005-08-22 20:09:43 -0700 | [diff] [blame] | 1021 | if (pTcon->nocase) |
| 1022 | direntry->d_op = &cifs_ci_dentry_ops; |
| 1023 | else |
| 1024 | direntry->d_op = &cifs_dentry_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1025 | d_instantiate(direntry, newinode); |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 1026 | /* setting nlink not necessary except in cases where we |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1027 | * failed to get it from the server or was set bogus */ |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 1028 | if ((direntry->d_inode) && (direntry->d_inode->i_nlink < 2)) |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1029 | direntry->d_inode->i_nlink = 2; |
Steve French | c18c842 | 2007-07-18 23:21:09 +0000 | [diff] [blame] | 1030 | if (pTcon->unix_ext) { |
Steve French | 3ce53fc | 2007-06-08 14:55:14 +0000 | [diff] [blame] | 1031 | mode &= ~current->fs->umask; |
Steve French | d0d2f2d | 2005-06-02 15:12:36 -0700 | [diff] [blame] | 1032 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1033 | CIFSSMBUnixSetPerms(xid, pTcon, full_path, |
| 1034 | mode, |
Steve French | 8345187 | 2005-12-01 17:12:59 -0800 | [diff] [blame] | 1035 | (__u64)current->fsuid, |
| 1036 | (__u64)current->fsgid, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1037 | 0 /* dev_t */, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1038 | cifs_sb->local_nls, |
| 1039 | cifs_sb->mnt_cifs_flags & |
| 1040 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1041 | } else { |
| 1042 | CIFSSMBUnixSetPerms(xid, pTcon, full_path, |
| 1043 | mode, (__u64)-1, |
| 1044 | (__u64)-1, 0 /* dev_t */, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1045 | cifs_sb->local_nls, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1046 | cifs_sb->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1047 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1048 | } |
Steve French | 3ce53fc | 2007-06-08 14:55:14 +0000 | [diff] [blame] | 1049 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1050 | /* BB to be implemented via Windows secrty descriptors |
| 1051 | eg CIFSSMBWinSetPerms(xid, pTcon, full_path, mode, |
| 1052 | -1, -1, local_nls); */ |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1053 | if (direntry->d_inode) { |
Steve French | 6473a55 | 2005-11-29 20:20:10 -0800 | [diff] [blame] | 1054 | direntry->d_inode->i_mode = mode; |
Steve French | 25741b3 | 2005-11-29 22:38:43 -0800 | [diff] [blame] | 1055 | direntry->d_inode->i_mode |= S_IFDIR; |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1056 | if (cifs_sb->mnt_cifs_flags & |
Steve French | 6473a55 | 2005-11-29 20:20:10 -0800 | [diff] [blame] | 1057 | CIFS_MOUNT_SET_UID) { |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1058 | direntry->d_inode->i_uid = |
Steve French | 6473a55 | 2005-11-29 20:20:10 -0800 | [diff] [blame] | 1059 | current->fsuid; |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1060 | direntry->d_inode->i_gid = |
Steve French | 6473a55 | 2005-11-29 20:20:10 -0800 | [diff] [blame] | 1061 | current->fsgid; |
| 1062 | } |
| 1063 | } |
Steve French | 2a138ebb | 2005-11-29 21:22:19 -0800 | [diff] [blame] | 1064 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1065 | } |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1066 | mkdir_out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1067 | kfree(full_path); |
| 1068 | FreeXid(xid); |
| 1069 | return rc; |
| 1070 | } |
| 1071 | |
| 1072 | int cifs_rmdir(struct inode *inode, struct dentry *direntry) |
| 1073 | { |
| 1074 | int rc = 0; |
| 1075 | int xid; |
| 1076 | struct cifs_sb_info *cifs_sb; |
| 1077 | struct cifsTconInfo *pTcon; |
| 1078 | char *full_path = NULL; |
| 1079 | struct cifsInodeInfo *cifsInode; |
| 1080 | |
Steve French | 26a21b9 | 2006-05-31 18:05:34 +0000 | [diff] [blame] | 1081 | cFYI(1, ("cifs_rmdir, inode = 0x%p", inode)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1082 | |
| 1083 | xid = GetXid(); |
| 1084 | |
| 1085 | cifs_sb = CIFS_SB(inode->i_sb); |
| 1086 | pTcon = cifs_sb->tcon; |
| 1087 | |
Steve French | 7f57356 | 2005-08-30 11:32:14 -0700 | [diff] [blame] | 1088 | full_path = build_path_from_dentry(direntry); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1089 | if (full_path == NULL) { |
| 1090 | FreeXid(xid); |
| 1091 | return -ENOMEM; |
| 1092 | } |
| 1093 | |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1094 | rc = CIFSSMBRmDir(xid, pTcon, full_path, cifs_sb->local_nls, |
| 1095 | cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1096 | |
| 1097 | if (!rc) { |
Dave Hansen | 9a53c3a | 2006-09-30 23:29:03 -0700 | [diff] [blame] | 1098 | drop_nlink(inode); |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1099 | spin_lock(&direntry->d_inode->i_lock); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1100 | i_size_write(direntry->d_inode, 0); |
Dave Hansen | ce71ec3 | 2006-09-30 23:29:06 -0700 | [diff] [blame] | 1101 | clear_nlink(direntry->d_inode); |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1102 | spin_unlock(&direntry->d_inode->i_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1103 | } |
| 1104 | |
| 1105 | cifsInode = CIFS_I(direntry->d_inode); |
| 1106 | cifsInode->time = 0; /* force revalidate to go get info when |
| 1107 | needed */ |
| 1108 | direntry->d_inode->i_ctime = inode->i_ctime = inode->i_mtime = |
| 1109 | current_fs_time(inode->i_sb); |
| 1110 | |
| 1111 | kfree(full_path); |
| 1112 | FreeXid(xid); |
| 1113 | return rc; |
| 1114 | } |
| 1115 | |
| 1116 | int cifs_rename(struct inode *source_inode, struct dentry *source_direntry, |
| 1117 | struct inode *target_inode, struct dentry *target_direntry) |
| 1118 | { |
| 1119 | char *fromName; |
| 1120 | char *toName; |
| 1121 | struct cifs_sb_info *cifs_sb_source; |
| 1122 | struct cifs_sb_info *cifs_sb_target; |
| 1123 | struct cifsTconInfo *pTcon; |
| 1124 | int xid; |
| 1125 | int rc = 0; |
| 1126 | |
| 1127 | xid = GetXid(); |
| 1128 | |
| 1129 | cifs_sb_target = CIFS_SB(target_inode->i_sb); |
| 1130 | cifs_sb_source = CIFS_SB(source_inode->i_sb); |
| 1131 | pTcon = cifs_sb_source->tcon; |
| 1132 | |
| 1133 | if (pTcon != cifs_sb_target->tcon) { |
| 1134 | FreeXid(xid); |
| 1135 | return -EXDEV; /* BB actually could be allowed if same server, |
| 1136 | but different share. |
| 1137 | Might eventually add support for this */ |
| 1138 | } |
| 1139 | |
| 1140 | /* we already have the rename sem so we do not need to grab it again |
| 1141 | here to protect the path integrity */ |
Steve French | 7f57356 | 2005-08-30 11:32:14 -0700 | [diff] [blame] | 1142 | fromName = build_path_from_dentry(source_direntry); |
| 1143 | toName = build_path_from_dentry(target_direntry); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1144 | if ((fromName == NULL) || (toName == NULL)) { |
| 1145 | rc = -ENOMEM; |
| 1146 | goto cifs_rename_exit; |
| 1147 | } |
| 1148 | |
| 1149 | rc = CIFSSMBRename(xid, pTcon, fromName, toName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1150 | cifs_sb_source->local_nls, |
| 1151 | cifs_sb_source->mnt_cifs_flags & |
| 1152 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1153 | if (rc == -EEXIST) { |
| 1154 | /* check if they are the same file because rename of hardlinked |
| 1155 | files is a noop */ |
| 1156 | FILE_UNIX_BASIC_INFO *info_buf_source; |
| 1157 | FILE_UNIX_BASIC_INFO *info_buf_target; |
| 1158 | |
| 1159 | info_buf_source = |
| 1160 | kmalloc(2 * sizeof(FILE_UNIX_BASIC_INFO), GFP_KERNEL); |
| 1161 | if (info_buf_source != NULL) { |
| 1162 | info_buf_target = info_buf_source + 1; |
Steve French | c18c842 | 2007-07-18 23:21:09 +0000 | [diff] [blame] | 1163 | if (pTcon->unix_ext) |
Steve French | 8e87d4d | 2006-11-02 03:45:24 +0000 | [diff] [blame] | 1164 | rc = CIFSSMBUnixQPathInfo(xid, pTcon, fromName, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1165 | info_buf_source, |
Steve French | 8e87d4d | 2006-11-02 03:45:24 +0000 | [diff] [blame] | 1166 | cifs_sb_source->local_nls, |
| 1167 | cifs_sb_source->mnt_cifs_flags & |
| 1168 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
| 1169 | /* else rc is still EEXIST so will fall through to |
| 1170 | unlink the target and retry rename */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1171 | if (rc == 0) { |
| 1172 | rc = CIFSSMBUnixQPathInfo(xid, pTcon, toName, |
| 1173 | info_buf_target, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1174 | cifs_sb_target->local_nls, |
| 1175 | /* remap based on source sb */ |
| 1176 | cifs_sb_source->mnt_cifs_flags & |
| 1177 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1178 | } |
| 1179 | if ((rc == 0) && |
| 1180 | (info_buf_source->UniqueId == |
| 1181 | info_buf_target->UniqueId)) { |
| 1182 | /* do not rename since the files are hardlinked which |
| 1183 | is a noop */ |
| 1184 | } else { |
| 1185 | /* we either can not tell the files are hardlinked |
| 1186 | (as with Windows servers) or files are not |
| 1187 | hardlinked so delete the target manually before |
| 1188 | renaming to follow POSIX rather than Windows |
| 1189 | semantics */ |
| 1190 | cifs_unlink(target_inode, target_direntry); |
| 1191 | rc = CIFSSMBRename(xid, pTcon, fromName, |
| 1192 | toName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1193 | cifs_sb_source->local_nls, |
| 1194 | cifs_sb_source->mnt_cifs_flags |
| 1195 | & CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1196 | } |
| 1197 | kfree(info_buf_source); |
| 1198 | } /* if we can not get memory just leave rc as EEXIST */ |
| 1199 | } |
| 1200 | |
| 1201 | if (rc) { |
| 1202 | cFYI(1, ("rename rc %d", rc)); |
| 1203 | } |
| 1204 | |
| 1205 | if ((rc == -EIO) || (rc == -EEXIST)) { |
| 1206 | int oplock = FALSE; |
| 1207 | __u16 netfid; |
| 1208 | |
| 1209 | /* BB FIXME Is Generic Read correct for rename? */ |
| 1210 | /* if renaming directory - we should not say CREATE_NOT_DIR, |
| 1211 | need to test renaming open directory, also GENERIC_READ |
| 1212 | might not right be right access to request */ |
| 1213 | rc = CIFSSMBOpen(xid, pTcon, fromName, FILE_OPEN, GENERIC_READ, |
| 1214 | CREATE_NOT_DIR, &netfid, &oplock, NULL, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1215 | cifs_sb_source->local_nls, |
| 1216 | cifs_sb_source->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1217 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1218 | if (rc == 0) { |
Steve French | 8e87d4d | 2006-11-02 03:45:24 +0000 | [diff] [blame] | 1219 | rc = CIFSSMBRenameOpenFile(xid, pTcon, netfid, toName, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1220 | cifs_sb_source->local_nls, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1221 | cifs_sb_source->mnt_cifs_flags & |
| 1222 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1223 | CIFSSMBClose(xid, pTcon, netfid); |
| 1224 | } |
| 1225 | } |
| 1226 | |
| 1227 | cifs_rename_exit: |
| 1228 | kfree(fromName); |
| 1229 | kfree(toName); |
| 1230 | FreeXid(xid); |
| 1231 | return rc; |
| 1232 | } |
| 1233 | |
| 1234 | int cifs_revalidate(struct dentry *direntry) |
| 1235 | { |
| 1236 | int xid; |
Jeff Layton | cea2180 | 2007-11-20 23:19:03 +0000 | [diff] [blame] | 1237 | int rc = 0, wbrc = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1238 | char *full_path; |
| 1239 | struct cifs_sb_info *cifs_sb; |
| 1240 | struct cifsInodeInfo *cifsInode; |
| 1241 | loff_t local_size; |
| 1242 | struct timespec local_mtime; |
| 1243 | int invalidate_inode = FALSE; |
| 1244 | |
| 1245 | if (direntry->d_inode == NULL) |
| 1246 | return -ENOENT; |
| 1247 | |
| 1248 | cifsInode = CIFS_I(direntry->d_inode); |
| 1249 | |
| 1250 | if (cifsInode == NULL) |
| 1251 | return -ENOENT; |
| 1252 | |
| 1253 | /* no sense revalidating inode info on file that no one can write */ |
| 1254 | if (CIFS_I(direntry->d_inode)->clientCanCacheRead) |
| 1255 | return rc; |
| 1256 | |
| 1257 | xid = GetXid(); |
| 1258 | |
| 1259 | cifs_sb = CIFS_SB(direntry->d_sb); |
| 1260 | |
| 1261 | /* can not safely grab the rename sem here if rename calls revalidate |
| 1262 | since that would deadlock */ |
Steve French | 7f57356 | 2005-08-30 11:32:14 -0700 | [diff] [blame] | 1263 | full_path = build_path_from_dentry(direntry); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1264 | if (full_path == NULL) { |
| 1265 | FreeXid(xid); |
| 1266 | return -ENOMEM; |
| 1267 | } |
| 1268 | cFYI(1, ("Revalidate: %s inode 0x%p count %d dentry: 0x%p d_time %ld " |
| 1269 | "jiffies %ld", full_path, direntry->d_inode, |
| 1270 | direntry->d_inode->i_count.counter, direntry, |
| 1271 | direntry->d_time, jiffies)); |
| 1272 | |
| 1273 | if (cifsInode->time == 0) { |
| 1274 | /* was set to zero previously to force revalidate */ |
| 1275 | } else if (time_before(jiffies, cifsInode->time + HZ) && |
| 1276 | lookupCacheEnabled) { |
| 1277 | if ((S_ISREG(direntry->d_inode->i_mode) == 0) || |
| 1278 | (direntry->d_inode->i_nlink == 1)) { |
| 1279 | kfree(full_path); |
| 1280 | FreeXid(xid); |
| 1281 | return rc; |
| 1282 | } else { |
| 1283 | cFYI(1, ("Have to revalidate file due to hardlinks")); |
| 1284 | } |
| 1285 | } |
| 1286 | |
| 1287 | /* save mtime and size */ |
| 1288 | local_mtime = direntry->d_inode->i_mtime; |
| 1289 | local_size = direntry->d_inode->i_size; |
| 1290 | |
Steve French | c18c842 | 2007-07-18 23:21:09 +0000 | [diff] [blame] | 1291 | if (cifs_sb->tcon->unix_ext) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1292 | rc = cifs_get_inode_info_unix(&direntry->d_inode, full_path, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1293 | direntry->d_sb, xid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1294 | if (rc) { |
| 1295 | cFYI(1, ("error on getting revalidate info %d", rc)); |
| 1296 | /* if (rc != -ENOENT) |
| 1297 | rc = 0; */ /* BB should we cache info on |
| 1298 | certain errors? */ |
| 1299 | } |
| 1300 | } else { |
| 1301 | rc = cifs_get_inode_info(&direntry->d_inode, full_path, NULL, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1302 | direntry->d_sb, xid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1303 | if (rc) { |
| 1304 | cFYI(1, ("error on getting revalidate info %d", rc)); |
| 1305 | /* if (rc != -ENOENT) |
| 1306 | rc = 0; */ /* BB should we cache info on |
| 1307 | certain errors? */ |
| 1308 | } |
| 1309 | } |
| 1310 | /* should we remap certain errors, access denied?, to zero */ |
| 1311 | |
| 1312 | /* if not oplocked, we invalidate inode pages if mtime or file size |
| 1313 | had changed on server */ |
| 1314 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1315 | if (timespec_equal(&local_mtime, &direntry->d_inode->i_mtime) && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1316 | (local_size == direntry->d_inode->i_size)) { |
| 1317 | cFYI(1, ("cifs_revalidate - inode unchanged")); |
| 1318 | } else { |
| 1319 | /* file may have changed on server */ |
| 1320 | if (cifsInode->clientCanCacheRead) { |
| 1321 | /* no need to invalidate inode pages since we were the |
| 1322 | only ones who could have modified the file and the |
| 1323 | server copy is staler than ours */ |
| 1324 | } else { |
| 1325 | invalidate_inode = TRUE; |
| 1326 | } |
| 1327 | } |
| 1328 | |
| 1329 | /* can not grab this sem since kernel filesys locking documentation |
Jes Sorensen | 1b1dcc1 | 2006-01-09 15:59:24 -0800 | [diff] [blame] | 1330 | indicates i_mutex may be taken by the kernel on lookup and rename |
| 1331 | which could deadlock if we grab the i_mutex here as well */ |
| 1332 | /* mutex_lock(&direntry->d_inode->i_mutex);*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1333 | /* need to write out dirty pages here */ |
| 1334 | if (direntry->d_inode->i_mapping) { |
| 1335 | /* do we need to lock inode until after invalidate completes |
| 1336 | below? */ |
Jeff Layton | cea2180 | 2007-11-20 23:19:03 +0000 | [diff] [blame] | 1337 | wbrc = filemap_fdatawrite(direntry->d_inode->i_mapping); |
| 1338 | if (wbrc) |
| 1339 | CIFS_I(direntry->d_inode)->write_behind_rc = wbrc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1340 | } |
| 1341 | if (invalidate_inode) { |
Steve French | 3abb927 | 2005-11-28 08:16:13 -0800 | [diff] [blame] | 1342 | /* shrink_dcache not necessary now that cifs dentry ops |
| 1343 | are exported for negative dentries */ |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1344 | /* if (S_ISDIR(direntry->d_inode->i_mode)) |
Steve French | 3abb927 | 2005-11-28 08:16:13 -0800 | [diff] [blame] | 1345 | shrink_dcache_parent(direntry); */ |
| 1346 | if (S_ISREG(direntry->d_inode->i_mode)) { |
| 1347 | if (direntry->d_inode->i_mapping) |
Jeff Layton | cea2180 | 2007-11-20 23:19:03 +0000 | [diff] [blame] | 1348 | wbrc = filemap_fdatawait(direntry->d_inode->i_mapping); |
| 1349 | if (wbrc) |
| 1350 | CIFS_I(direntry->d_inode)->write_behind_rc = wbrc; |
Steve French | 3abb927 | 2005-11-28 08:16:13 -0800 | [diff] [blame] | 1351 | /* may eventually have to do this for open files too */ |
| 1352 | if (list_empty(&(cifsInode->openFileList))) { |
| 1353 | /* changed on server - flush read ahead pages */ |
| 1354 | cFYI(1, ("Invalidating read ahead data on " |
| 1355 | "closed file")); |
| 1356 | invalidate_remote_inode(direntry->d_inode); |
| 1357 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1358 | } |
| 1359 | } |
Jes Sorensen | 1b1dcc1 | 2006-01-09 15:59:24 -0800 | [diff] [blame] | 1360 | /* mutex_unlock(&direntry->d_inode->i_mutex); */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1361 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1362 | kfree(full_path); |
| 1363 | FreeXid(xid); |
| 1364 | return rc; |
| 1365 | } |
| 1366 | |
| 1367 | int cifs_getattr(struct vfsmount *mnt, struct dentry *dentry, |
| 1368 | struct kstat *stat) |
| 1369 | { |
| 1370 | int err = cifs_revalidate(dentry); |
Steve French | 5fe14c8 | 2006-11-07 19:26:33 +0000 | [diff] [blame] | 1371 | if (!err) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1372 | generic_fillattr(dentry->d_inode, stat); |
Steve French | 5fe14c8 | 2006-11-07 19:26:33 +0000 | [diff] [blame] | 1373 | stat->blksize = CIFS_MAX_MSGSIZE; |
| 1374 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1375 | return err; |
| 1376 | } |
| 1377 | |
| 1378 | static int cifs_truncate_page(struct address_space *mapping, loff_t from) |
| 1379 | { |
| 1380 | pgoff_t index = from >> PAGE_CACHE_SHIFT; |
| 1381 | unsigned offset = from & (PAGE_CACHE_SIZE - 1); |
| 1382 | struct page *page; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1383 | int rc = 0; |
| 1384 | |
| 1385 | page = grab_cache_page(mapping, index); |
| 1386 | if (!page) |
| 1387 | return -ENOMEM; |
| 1388 | |
Steve French | 7e42ca8 | 2007-07-16 17:40:02 +0000 | [diff] [blame] | 1389 | zero_user_page(page, offset, PAGE_CACHE_SIZE - offset, KM_USER0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1390 | unlock_page(page); |
| 1391 | page_cache_release(page); |
| 1392 | return rc; |
| 1393 | } |
| 1394 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1395 | static int cifs_vmtruncate(struct inode *inode, loff_t offset) |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1396 | { |
| 1397 | struct address_space *mapping = inode->i_mapping; |
| 1398 | unsigned long limit; |
| 1399 | |
Steve French | ba6a46a | 2007-02-26 20:06:29 +0000 | [diff] [blame] | 1400 | spin_lock(&inode->i_lock); |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1401 | if (inode->i_size < offset) |
| 1402 | goto do_expand; |
| 1403 | /* |
| 1404 | * truncation of in-use swapfiles is disallowed - it would cause |
| 1405 | * subsequent swapout to scribble on the now-freed blocks. |
| 1406 | */ |
Steve French | ba6a46a | 2007-02-26 20:06:29 +0000 | [diff] [blame] | 1407 | if (IS_SWAPFILE(inode)) { |
| 1408 | spin_unlock(&inode->i_lock); |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1409 | goto out_busy; |
Steve French | ba6a46a | 2007-02-26 20:06:29 +0000 | [diff] [blame] | 1410 | } |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1411 | i_size_write(inode, offset); |
| 1412 | spin_unlock(&inode->i_lock); |
Steve French | 8064ab4 | 2007-08-22 22:12:07 +0000 | [diff] [blame] | 1413 | /* |
| 1414 | * unmap_mapping_range is called twice, first simply for efficiency |
| 1415 | * so that truncate_inode_pages does fewer single-page unmaps. However |
| 1416 | * after this first call, and before truncate_inode_pages finishes, |
| 1417 | * it is possible for private pages to be COWed, which remain after |
| 1418 | * truncate_inode_pages finishes, hence the second unmap_mapping_range |
| 1419 | * call must be made for correctness. |
| 1420 | */ |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1421 | unmap_mapping_range(mapping, offset + PAGE_SIZE - 1, 0, 1); |
| 1422 | truncate_inode_pages(mapping, offset); |
Steve French | 8064ab4 | 2007-08-22 22:12:07 +0000 | [diff] [blame] | 1423 | unmap_mapping_range(mapping, offset + PAGE_SIZE - 1, 0, 1); |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1424 | goto out_truncate; |
| 1425 | |
| 1426 | do_expand: |
| 1427 | limit = current->signal->rlim[RLIMIT_FSIZE].rlim_cur; |
Steve French | ba6a46a | 2007-02-26 20:06:29 +0000 | [diff] [blame] | 1428 | if (limit != RLIM_INFINITY && offset > limit) { |
| 1429 | spin_unlock(&inode->i_lock); |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1430 | goto out_sig; |
Steve French | ba6a46a | 2007-02-26 20:06:29 +0000 | [diff] [blame] | 1431 | } |
| 1432 | if (offset > inode->i_sb->s_maxbytes) { |
| 1433 | spin_unlock(&inode->i_lock); |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1434 | goto out_big; |
Steve French | ba6a46a | 2007-02-26 20:06:29 +0000 | [diff] [blame] | 1435 | } |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1436 | i_size_write(inode, offset); |
Steve French | ba6a46a | 2007-02-26 20:06:29 +0000 | [diff] [blame] | 1437 | spin_unlock(&inode->i_lock); |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1438 | out_truncate: |
| 1439 | if (inode->i_op && inode->i_op->truncate) |
| 1440 | inode->i_op->truncate(inode); |
| 1441 | return 0; |
| 1442 | out_sig: |
| 1443 | send_sig(SIGXFSZ, current, 0); |
| 1444 | out_big: |
| 1445 | return -EFBIG; |
| 1446 | out_busy: |
| 1447 | return -ETXTBSY; |
| 1448 | } |
| 1449 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1450 | int cifs_setattr(struct dentry *direntry, struct iattr *attrs) |
| 1451 | { |
| 1452 | int xid; |
| 1453 | struct cifs_sb_info *cifs_sb; |
| 1454 | struct cifsTconInfo *pTcon; |
| 1455 | char *full_path = NULL; |
| 1456 | int rc = -EACCES; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1457 | struct cifsFileInfo *open_file = NULL; |
| 1458 | FILE_BASIC_INFO time_buf; |
| 1459 | int set_time = FALSE; |
Steve French | 066fcb0 | 2007-03-23 00:45:08 +0000 | [diff] [blame] | 1460 | int set_dosattr = FALSE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1461 | __u64 mode = 0xFFFFFFFFFFFFFFFFULL; |
| 1462 | __u64 uid = 0xFFFFFFFFFFFFFFFFULL; |
| 1463 | __u64 gid = 0xFFFFFFFFFFFFFFFFULL; |
| 1464 | struct cifsInodeInfo *cifsInode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1465 | |
| 1466 | xid = GetXid(); |
| 1467 | |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 1468 | cFYI(1, ("setattr on file %s attrs->iavalid 0x%x", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1469 | direntry->d_name.name, attrs->ia_valid)); |
Steve French | 6473a55 | 2005-11-29 20:20:10 -0800 | [diff] [blame] | 1470 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1471 | cifs_sb = CIFS_SB(direntry->d_inode->i_sb); |
| 1472 | pTcon = cifs_sb->tcon; |
| 1473 | |
Steve French | 2a138ebb | 2005-11-29 21:22:19 -0800 | [diff] [blame] | 1474 | if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM) == 0) { |
Steve French | 6473a55 | 2005-11-29 20:20:10 -0800 | [diff] [blame] | 1475 | /* check if we have permission to change attrs */ |
| 1476 | rc = inode_change_ok(direntry->d_inode, attrs); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1477 | if (rc < 0) { |
Steve French | 6473a55 | 2005-11-29 20:20:10 -0800 | [diff] [blame] | 1478 | FreeXid(xid); |
| 1479 | return rc; |
| 1480 | } else |
| 1481 | rc = 0; |
| 1482 | } |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1483 | |
Steve French | 7f57356 | 2005-08-30 11:32:14 -0700 | [diff] [blame] | 1484 | full_path = build_path_from_dentry(direntry); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1485 | if (full_path == NULL) { |
| 1486 | FreeXid(xid); |
| 1487 | return -ENOMEM; |
| 1488 | } |
| 1489 | cifsInode = CIFS_I(direntry->d_inode); |
| 1490 | |
| 1491 | /* BB check if we need to refresh inode from server now ? BB */ |
| 1492 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1493 | if (attrs->ia_valid & ATTR_SIZE) { |
Jeff Layton | cea2180 | 2007-11-20 23:19:03 +0000 | [diff] [blame] | 1494 | /* |
| 1495 | Flush data before changing file size on server. If the |
| 1496 | flush returns error, store it to report later and continue. |
| 1497 | BB: This should be smarter. Why bother flushing pages that |
| 1498 | will be truncated anyway? Also, should we error out here if |
| 1499 | the flush returns error? |
| 1500 | */ |
| 1501 | rc = filemap_write_and_wait(direntry->d_inode->i_mapping); |
| 1502 | if (rc != 0) { |
| 1503 | CIFS_I(direntry->d_inode)->write_behind_rc = rc; |
| 1504 | rc = 0; |
| 1505 | } |
| 1506 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1507 | /* To avoid spurious oplock breaks from server, in the case of |
| 1508 | inodes that we already have open, avoid doing path based |
| 1509 | setting of file size if we can do it by handle. |
| 1510 | This keeps our caching token (oplock) and avoids timeouts |
| 1511 | when the local oplock break takes longer to flush |
| 1512 | writebehind data than the SMB timeout for the SetPathInfo |
| 1513 | request would allow */ |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 1514 | |
Steve French | 6148a74 | 2005-10-05 12:23:19 -0700 | [diff] [blame] | 1515 | open_file = find_writable_file(cifsInode); |
| 1516 | if (open_file) { |
| 1517 | __u16 nfid = open_file->netfid; |
| 1518 | __u32 npid = open_file->pid; |
| 1519 | rc = CIFSSMBSetFileSize(xid, pTcon, attrs->ia_size, |
| 1520 | nfid, npid, FALSE); |
Steve French | 23e7dd7 | 2005-10-20 13:44:56 -0700 | [diff] [blame] | 1521 | atomic_dec(&open_file->wrtPending); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1522 | cFYI(1, ("SetFSize for attrs rc = %d", rc)); |
| 1523 | if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) { |
Steve French | 77159b4 | 2007-08-31 01:10:17 +0000 | [diff] [blame] | 1524 | unsigned int bytes_written; |
Steve French | 6148a74 | 2005-10-05 12:23:19 -0700 | [diff] [blame] | 1525 | rc = CIFSSMBWrite(xid, pTcon, |
| 1526 | nfid, 0, attrs->ia_size, |
| 1527 | &bytes_written, NULL, NULL, |
| 1528 | 1 /* 45 seconds */); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1529 | cFYI(1, ("Wrt seteof rc %d", rc)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1530 | } |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1531 | } else |
Steve French | 6473a55 | 2005-11-29 20:20:10 -0800 | [diff] [blame] | 1532 | rc = -EINVAL; |
| 1533 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1534 | if (rc != 0) { |
| 1535 | /* Set file size by pathname rather than by handle |
| 1536 | either because no valid, writeable file handle for |
| 1537 | it was found or because there was an error setting |
| 1538 | it by handle */ |
| 1539 | rc = CIFSSMBSetEOF(xid, pTcon, full_path, |
| 1540 | attrs->ia_size, FALSE, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1541 | cifs_sb->local_nls, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1542 | cifs_sb->mnt_cifs_flags & |
| 1543 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1544 | cFYI(1, ("SetEOF by path (setattrs) rc = %d", rc)); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1545 | if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) { |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1546 | __u16 netfid; |
| 1547 | int oplock = FALSE; |
| 1548 | |
| 1549 | rc = SMBLegacyOpen(xid, pTcon, full_path, |
| 1550 | FILE_OPEN, |
| 1551 | SYNCHRONIZE | FILE_WRITE_ATTRIBUTES, |
| 1552 | CREATE_NOT_DIR, &netfid, &oplock, |
| 1553 | NULL, cifs_sb->local_nls, |
| 1554 | cifs_sb->mnt_cifs_flags & |
| 1555 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1556 | if (rc == 0) { |
Steve French | 77159b4 | 2007-08-31 01:10:17 +0000 | [diff] [blame] | 1557 | unsigned int bytes_written; |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1558 | rc = CIFSSMBWrite(xid, pTcon, |
| 1559 | netfid, 0, |
| 1560 | attrs->ia_size, |
| 1561 | &bytes_written, NULL, |
| 1562 | NULL, 1 /* 45 sec */); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1563 | cFYI(1, ("wrt seteof rc %d", rc)); |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1564 | CIFSSMBClose(xid, pTcon, netfid); |
| 1565 | } |
| 1566 | |
| 1567 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1568 | } |
| 1569 | |
| 1570 | /* Server is ok setting allocation size implicitly - no need |
| 1571 | to call: |
| 1572 | CIFSSMBSetEOF(xid, pTcon, full_path, attrs->ia_size, TRUE, |
| 1573 | cifs_sb->local_nls); |
| 1574 | */ |
| 1575 | |
| 1576 | if (rc == 0) { |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1577 | rc = cifs_vmtruncate(direntry->d_inode, attrs->ia_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1578 | cifs_truncate_page(direntry->d_inode->i_mapping, |
| 1579 | direntry->d_inode->i_size); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1580 | } else |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1581 | goto cifs_setattr_exit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1582 | } |
| 1583 | if (attrs->ia_valid & ATTR_UID) { |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1584 | cFYI(1, ("UID changed to %d", attrs->ia_uid)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1585 | uid = attrs->ia_uid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1586 | } |
| 1587 | if (attrs->ia_valid & ATTR_GID) { |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1588 | cFYI(1, ("GID changed to %d", attrs->ia_gid)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1589 | gid = attrs->ia_gid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1590 | } |
| 1591 | |
| 1592 | time_buf.Attributes = 0; |
Jeff Layton | d32c4f2 | 2007-10-18 03:05:22 -0700 | [diff] [blame] | 1593 | |
| 1594 | /* skip mode change if it's just for clearing setuid/setgid */ |
| 1595 | if (attrs->ia_valid & (ATTR_KILL_SUID|ATTR_KILL_SGID)) |
| 1596 | attrs->ia_valid &= ~ATTR_MODE; |
| 1597 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1598 | if (attrs->ia_valid & ATTR_MODE) { |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1599 | cFYI(1, ("Mode changed to 0x%x", attrs->ia_mode)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1600 | mode = attrs->ia_mode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1601 | } |
| 1602 | |
Steve French | c18c842 | 2007-07-18 23:21:09 +0000 | [diff] [blame] | 1603 | if ((pTcon->unix_ext) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1604 | && (attrs->ia_valid & (ATTR_MODE | ATTR_GID | ATTR_UID))) |
| 1605 | rc = CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode, uid, gid, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1606 | 0 /* dev_t */, cifs_sb->local_nls, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1607 | cifs_sb->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1608 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1609 | else if (attrs->ia_valid & ATTR_MODE) { |
Steve French | cdbce9c | 2005-11-19 21:04:52 -0800 | [diff] [blame] | 1610 | rc = 0; |
Steve French | 9783758 | 2007-12-31 07:47:21 +0000 | [diff] [blame] | 1611 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
| 1612 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) |
| 1613 | rc = mode_to_acl(direntry->d_inode, full_path, mode); |
Steve French | f6d0998 | 2008-01-08 23:18:22 +0000 | [diff] [blame] | 1614 | else if ((mode & S_IWUGO) == 0) { |
Steve French | 9783758 | 2007-12-31 07:47:21 +0000 | [diff] [blame] | 1615 | #else |
Steve French | f6d0998 | 2008-01-08 23:18:22 +0000 | [diff] [blame] | 1616 | if ((mode & S_IWUGO) == 0) { |
Steve French | 9783758 | 2007-12-31 07:47:21 +0000 | [diff] [blame] | 1617 | #endif |
Steve French | f6d0998 | 2008-01-08 23:18:22 +0000 | [diff] [blame] | 1618 | /* not writeable */ |
Steve French | 066fcb0 | 2007-03-23 00:45:08 +0000 | [diff] [blame] | 1619 | if ((cifsInode->cifsAttrs & ATTR_READONLY) == 0) { |
| 1620 | set_dosattr = TRUE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1621 | time_buf.Attributes = |
| 1622 | cpu_to_le32(cifsInode->cifsAttrs | |
| 1623 | ATTR_READONLY); |
Steve French | 066fcb0 | 2007-03-23 00:45:08 +0000 | [diff] [blame] | 1624 | } |
Steve French | 5268df2 | 2007-04-06 19:28:16 +0000 | [diff] [blame] | 1625 | } else if (cifsInode->cifsAttrs & ATTR_READONLY) { |
| 1626 | /* If file is readonly on server, we would |
| 1627 | not be able to write to it - so if any write |
| 1628 | bit is enabled for user or group or other we |
| 1629 | need to at least try to remove r/o dos attr */ |
| 1630 | set_dosattr = TRUE; |
| 1631 | time_buf.Attributes = cpu_to_le32(cifsInode->cifsAttrs & |
| 1632 | (~ATTR_READONLY)); |
| 1633 | /* Windows ignores set to zero */ |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1634 | if (time_buf.Attributes == 0) |
Steve French | 5268df2 | 2007-04-06 19:28:16 +0000 | [diff] [blame] | 1635 | time_buf.Attributes |= cpu_to_le32(ATTR_NORMAL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1636 | } |
Steve French | 9783758 | 2007-12-31 07:47:21 +0000 | [diff] [blame] | 1637 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
| 1638 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) |
| 1639 | mode_to_acl(direntry->d_inode, full_path, mode); |
| 1640 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1641 | } |
| 1642 | |
| 1643 | if (attrs->ia_valid & ATTR_ATIME) { |
| 1644 | set_time = TRUE; |
| 1645 | time_buf.LastAccessTime = |
| 1646 | cpu_to_le64(cifs_UnixTimeToNT(attrs->ia_atime)); |
| 1647 | } else |
| 1648 | time_buf.LastAccessTime = 0; |
| 1649 | |
| 1650 | if (attrs->ia_valid & ATTR_MTIME) { |
| 1651 | set_time = TRUE; |
| 1652 | time_buf.LastWriteTime = |
| 1653 | cpu_to_le64(cifs_UnixTimeToNT(attrs->ia_mtime)); |
| 1654 | } else |
| 1655 | time_buf.LastWriteTime = 0; |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1656 | /* Do not set ctime explicitly unless other time |
| 1657 | stamps are changed explicitly (i.e. by utime() |
| 1658 | since we would then have a mix of client and |
| 1659 | server times */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1660 | |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1661 | if (set_time && (attrs->ia_valid & ATTR_CTIME)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1662 | set_time = TRUE; |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1663 | /* Although Samba throws this field away |
| 1664 | it may be useful to Windows - but we do |
| 1665 | not want to set ctime unless some other |
| 1666 | timestamp is changing */ |
Steve French | 26a21b9 | 2006-05-31 18:05:34 +0000 | [diff] [blame] | 1667 | cFYI(1, ("CIFS - CTIME changed")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1668 | time_buf.ChangeTime = |
| 1669 | cpu_to_le64(cifs_UnixTimeToNT(attrs->ia_ctime)); |
| 1670 | } else |
| 1671 | time_buf.ChangeTime = 0; |
| 1672 | |
Steve French | 066fcb0 | 2007-03-23 00:45:08 +0000 | [diff] [blame] | 1673 | if (set_time || set_dosattr) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1674 | time_buf.CreationTime = 0; /* do not change */ |
| 1675 | /* In the future we should experiment - try setting timestamps |
| 1676 | via Handle (SetFileInfo) instead of by path */ |
| 1677 | if (!(pTcon->ses->flags & CIFS_SES_NT4)) |
| 1678 | rc = CIFSSMBSetTimes(xid, pTcon, full_path, &time_buf, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1679 | cifs_sb->local_nls, |
| 1680 | cifs_sb->mnt_cifs_flags & |
| 1681 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1682 | else |
| 1683 | rc = -EOPNOTSUPP; |
| 1684 | |
| 1685 | if (rc == -EOPNOTSUPP) { |
| 1686 | int oplock = FALSE; |
| 1687 | __u16 netfid; |
| 1688 | |
| 1689 | cFYI(1, ("calling SetFileInfo since SetPathInfo for " |
| 1690 | "times not supported by this server")); |
| 1691 | /* BB we could scan to see if we already have it open |
| 1692 | and pass in pid of opener to function */ |
| 1693 | rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN, |
| 1694 | SYNCHRONIZE | FILE_WRITE_ATTRIBUTES, |
| 1695 | CREATE_NOT_DIR, &netfid, &oplock, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1696 | NULL, cifs_sb->local_nls, |
| 1697 | cifs_sb->mnt_cifs_flags & |
| 1698 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1699 | if (rc == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1700 | rc = CIFSSMBSetFileTimes(xid, pTcon, &time_buf, |
| 1701 | netfid); |
| 1702 | CIFSSMBClose(xid, pTcon, netfid); |
| 1703 | } else { |
| 1704 | /* BB For even older servers we could convert time_buf |
| 1705 | into old DOS style which uses two second |
| 1706 | granularity */ |
| 1707 | |
| 1708 | /* rc = CIFSSMBSetTimesLegacy(xid, pTcon, full_path, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1709 | &time_buf, cifs_sb->local_nls); */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1710 | } |
| 1711 | } |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1712 | /* Even if error on time set, no sense failing the call if |
| 1713 | the server would set the time to a reasonable value anyway, |
| 1714 | and this check ensures that we are not being called from |
| 1715 | sys_utimes in which case we ought to fail the call back to |
| 1716 | the user when the server rejects the call */ |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1717 | if ((rc) && (attrs->ia_valid & |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1718 | (ATTR_MODE | ATTR_GID | ATTR_UID | ATTR_SIZE))) |
| 1719 | rc = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1720 | } |
| 1721 | |
| 1722 | /* do not need local check to inode_check_ok since the server does |
| 1723 | that */ |
| 1724 | if (!rc) |
| 1725 | rc = inode_setattr(direntry->d_inode, attrs); |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1726 | cifs_setattr_exit: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1727 | kfree(full_path); |
| 1728 | FreeXid(xid); |
| 1729 | return rc; |
| 1730 | } |
| 1731 | |
Steve French | 99ee4db | 2007-02-27 05:35:17 +0000 | [diff] [blame] | 1732 | #if 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1733 | void cifs_delete_inode(struct inode *inode) |
| 1734 | { |
Steve French | 26a21b9 | 2006-05-31 18:05:34 +0000 | [diff] [blame] | 1735 | cFYI(1, ("In cifs_delete_inode, inode = 0x%p", inode)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1736 | /* may have to add back in if and when safe distributed caching of |
| 1737 | directories added e.g. via FindNotify */ |
| 1738 | } |
Steve French | 99ee4db | 2007-02-27 05:35:17 +0000 | [diff] [blame] | 1739 | #endif |