diff options
Diffstat (limited to 'fs/cifs/inode.c')
-rw-r--r-- | fs/cifs/inode.c | 1086 |
1 files changed, 544 insertions, 542 deletions
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 745da3d0653e..449b6cf09b09 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -91,30 +91,32 @@ cifs_revalidate_cache(struct inode *inode, struct cifs_fattr *fattr) { struct cifsInodeInfo *cifs_i = CIFS_I(inode); - cFYI(1, "%s: revalidating inode %llu", __func__, cifs_i->uniqueid); + cifs_dbg(FYI, "%s: revalidating inode %llu\n", + __func__, cifs_i->uniqueid); if (inode->i_state & I_NEW) { - cFYI(1, "%s: inode %llu is new", __func__, cifs_i->uniqueid); + cifs_dbg(FYI, "%s: inode %llu is new\n", + __func__, cifs_i->uniqueid); return; } /* don't bother with revalidation if we have an oplock */ if (cifs_i->clientCanCacheRead) { - cFYI(1, "%s: inode %llu is oplocked", __func__, - cifs_i->uniqueid); + cifs_dbg(FYI, "%s: inode %llu is oplocked\n", + __func__, cifs_i->uniqueid); return; } /* revalidate if mtime or size have changed */ if (timespec_equal(&inode->i_mtime, &fattr->cf_mtime) && cifs_i->server_eof == fattr->cf_eof) { - cFYI(1, "%s: inode %llu is unchanged", __func__, - cifs_i->uniqueid); + cifs_dbg(FYI, "%s: inode %llu is unchanged\n", + __func__, cifs_i->uniqueid); return; } - cFYI(1, "%s: invalidating inode %llu mapping", __func__, - cifs_i->uniqueid); + cifs_dbg(FYI, "%s: invalidating inode %llu mapping\n", + __func__, cifs_i->uniqueid); cifs_i->invalid_mapping = true; } @@ -124,10 +126,10 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr) { struct cifsInodeInfo *cifs_i = CIFS_I(inode); struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); - unsigned long oldtime = cifs_i->time; cifs_revalidate_cache(inode, fattr); + spin_lock(&inode->i_lock); inode->i_atime = fattr->cf_atime; inode->i_mtime = fattr->cf_mtime; inode->i_ctime = fattr->cf_ctime; @@ -148,9 +150,6 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr) else cifs_i->time = jiffies; - cFYI(1, "inode 0x%p old_time=%ld new_time=%ld", inode, - oldtime, cifs_i->time); - cifs_i->delete_pending = fattr->cf_flags & CIFS_FATTR_DELETE_PENDING; cifs_i->server_eof = fattr->cf_eof; @@ -158,7 +157,6 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr) * Can't safely change the file size here if the client is writing to * it due to potential races. */ - spin_lock(&inode->i_lock); if (is_size_safe_to_change(cifs_i, fattr->cf_eof)) { i_size_write(inode, fattr->cf_eof); @@ -173,7 +171,8 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr) if (fattr->cf_flags & CIFS_FATTR_DFS_REFERRAL) inode->i_flags |= S_AUTOMOUNT; - cifs_set_ops(inode); + if (inode->i_state & I_NEW) + cifs_set_ops(inode); } void @@ -244,19 +243,29 @@ cifs_unix_basic_to_fattr(struct cifs_fattr *fattr, FILE_UNIX_BASIC_INFO *info, /* safest to call it a file if we do not know */ fattr->cf_mode |= S_IFREG; fattr->cf_dtype = DT_REG; - cFYI(1, "unknown type %d", le32_to_cpu(info->Type)); + cifs_dbg(FYI, "unknown type %d\n", le32_to_cpu(info->Type)); break; } - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) - fattr->cf_uid = cifs_sb->mnt_uid; - else - fattr->cf_uid = le64_to_cpu(info->Uid); - - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) - fattr->cf_gid = cifs_sb->mnt_gid; - else - fattr->cf_gid = le64_to_cpu(info->Gid); + fattr->cf_uid = cifs_sb->mnt_uid; + if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID)) { + u64 id = le64_to_cpu(info->Uid); + if (id < ((uid_t)-1)) { + kuid_t uid = make_kuid(&init_user_ns, id); + if (uid_valid(uid)) + fattr->cf_uid = uid; + } + } + + fattr->cf_gid = cifs_sb->mnt_gid; + if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID)) { + u64 id = le64_to_cpu(info->Gid); + if (id < ((gid_t)-1)) { + kgid_t gid = make_kgid(&init_user_ns, id); + if (gid_valid(gid)) + fattr->cf_gid = gid; + } + } fattr->cf_nlink = le64_to_cpu(info->Nlinks); } @@ -273,7 +282,7 @@ cifs_create_dfs_fattr(struct cifs_fattr *fattr, struct super_block *sb) { struct cifs_sb_info *cifs_sb = CIFS_SB(sb); - cFYI(1, "creating fake fattr for DFS referral"); + cifs_dbg(FYI, "creating fake fattr for DFS referral\n"); memset(fattr, 0, sizeof(*fattr)); fattr->cf_mode = S_IFDIR | S_IXUGO | S_IRWXU; @@ -286,19 +295,20 @@ cifs_create_dfs_fattr(struct cifs_fattr *fattr, struct super_block *sb) fattr->cf_flags |= CIFS_FATTR_DFS_REFERRAL; } -int cifs_get_file_info_unix(struct file *filp) +static int +cifs_get_file_info_unix(struct file *filp) { int rc; - int xid; + unsigned int xid; FILE_UNIX_BASIC_INFO find_data; struct cifs_fattr fattr; - struct inode *inode = filp->f_path.dentry->d_inode; + struct inode *inode = file_inode(filp); struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); struct cifsFileInfo *cfile = filp->private_data; struct cifs_tcon *tcon = tlink_tcon(cfile->tlink); - xid = GetXid(); - rc = CIFSSMBUnixQFileInfo(xid, tcon, cfile->netfid, &find_data); + xid = get_xid(); + rc = CIFSSMBUnixQFileInfo(xid, tcon, cfile->fid.netfid, &find_data); if (!rc) { cifs_unix_basic_to_fattr(&fattr, &find_data, cifs_sb); } else if (rc == -EREMOTE) { @@ -307,13 +317,13 @@ int cifs_get_file_info_unix(struct file *filp) } cifs_fattr_to_inode(inode, &fattr); - FreeXid(xid); + free_xid(xid); return rc; } int cifs_get_inode_info_unix(struct inode **pinode, const unsigned char *full_path, - struct super_block *sb, int xid) + struct super_block *sb, unsigned int xid) { int rc; FILE_UNIX_BASIC_INFO find_data; @@ -322,7 +332,7 @@ int cifs_get_inode_info_unix(struct inode **pinode, struct tcon_link *tlink; struct cifs_sb_info *cifs_sb = CIFS_SB(sb); - cFYI(1, "Getting info on %s", full_path); + cifs_dbg(FYI, "Getting info on %s\n", full_path); tlink = cifs_sb_tlink(cifs_sb); if (IS_ERR(tlink)) @@ -348,7 +358,7 @@ int cifs_get_inode_info_unix(struct inode **pinode, if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS) { int tmprc = CIFSCheckMFSymlink(&fattr, full_path, cifs_sb, xid); if (tmprc) - cFYI(1, "CIFSCheckMFSymlink: %d", tmprc); + cifs_dbg(FYI, "CIFSCheckMFSymlink: %d\n", tmprc); } if (*pinode == NULL) { @@ -367,7 +377,7 @@ int cifs_get_inode_info_unix(struct inode **pinode, static int cifs_sfu_type(struct cifs_fattr *fattr, const unsigned char *path, - struct cifs_sb_info *cifs_sb, int xid) + struct cifs_sb_info *cifs_sb, unsigned int xid) { int rc; int oplock = 0; @@ -415,7 +425,7 @@ cifs_sfu_type(struct cifs_fattr *fattr, const unsigned char *path, &buf_type); if ((rc == 0) && (bytes_read >= 8)) { if (memcmp("IntxBLK", pbuf, 8) == 0) { - cFYI(1, "Block device"); + cifs_dbg(FYI, "Block device\n"); fattr->cf_mode |= S_IFBLK; fattr->cf_dtype = DT_BLK; if (bytes_read == 24) { @@ -427,7 +437,7 @@ cifs_sfu_type(struct cifs_fattr *fattr, const unsigned char *path, fattr->cf_rdev = MKDEV(mjr, mnr); } } else if (memcmp("IntxCHR", pbuf, 8) == 0) { - cFYI(1, "Char device"); + cifs_dbg(FYI, "Char device\n"); fattr->cf_mode |= S_IFCHR; fattr->cf_dtype = DT_CHR; if (bytes_read == 24) { @@ -439,7 +449,7 @@ cifs_sfu_type(struct cifs_fattr *fattr, const unsigned char *path, fattr->cf_rdev = MKDEV(mjr, mnr); } } else if (memcmp("IntxLNK", pbuf, 7) == 0) { - cFYI(1, "Symlink"); + cifs_dbg(FYI, "Symlink\n"); fattr->cf_mode |= S_IFLNK; fattr->cf_dtype = DT_LNK; } else { @@ -466,7 +476,7 @@ cifs_sfu_type(struct cifs_fattr *fattr, const unsigned char *path, * FIXME: Doesn't this clobber the type bit we got from cifs_sfu_type ? */ static int cifs_sfu_mode(struct cifs_fattr *fattr, const unsigned char *path, - struct cifs_sb_info *cifs_sb, int xid) + struct cifs_sb_info *cifs_sb, unsigned int xid) { #ifdef CONFIG_CIFS_XATTR ssize_t rc; @@ -490,10 +500,10 @@ static int cifs_sfu_mode(struct cifs_fattr *fattr, const unsigned char *path, else if (rc > 3) { mode = le32_to_cpu(*((__le32 *)ea_value)); fattr->cf_mode &= ~SFBITS_MASK; - cFYI(1, "special bits 0%o org mode 0%o", mode, - fattr->cf_mode); + cifs_dbg(FYI, "special bits 0%o org mode 0%o\n", + mode, fattr->cf_mode); fattr->cf_mode = (mode & SFBITS_MASK) | fattr->cf_mode; - cFYI(1, "special mode bits 0%o", mode); + cifs_dbg(FYI, "special mode bits 0%o\n", mode); } return 0; @@ -548,25 +558,35 @@ cifs_all_info_to_fattr(struct cifs_fattr *fattr, FILE_ALL_INFO *info, fattr->cf_mode &= ~(S_IWUGO); fattr->cf_nlink = le32_to_cpu(info->NumberOfLinks); + if (fattr->cf_nlink < 1) { + cifs_dbg(1, "replacing bogus file nlink value %u\n", + fattr->cf_nlink); + fattr->cf_nlink = 1; + } } fattr->cf_uid = cifs_sb->mnt_uid; fattr->cf_gid = cifs_sb->mnt_gid; } -int cifs_get_file_info(struct file *filp) +static int +cifs_get_file_info(struct file *filp) { int rc; - int xid; + unsigned int xid; FILE_ALL_INFO find_data; struct cifs_fattr fattr; - struct inode *inode = filp->f_path.dentry->d_inode; + struct inode *inode = file_inode(filp); struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); struct cifsFileInfo *cfile = filp->private_data; struct cifs_tcon *tcon = tlink_tcon(cfile->tlink); + struct TCP_Server_Info *server = tcon->ses->server; + + if (!server->ops->query_file_info) + return -ENOSYS; - xid = GetXid(); - rc = CIFSSMBQFileInfo(xid, tcon, cfile->netfid, &find_data); + xid = get_xid(); + rc = server->ops->query_file_info(xid, tcon, &cfile->fid, &find_data); switch (rc) { case 0: cifs_all_info_to_fattr(&fattr, &find_data, cifs_sb, false); @@ -596,71 +616,96 @@ int cifs_get_file_info(struct file *filp) fattr.cf_flags |= CIFS_FATTR_NEED_REVAL; cifs_fattr_to_inode(inode, &fattr); cgfi_exit: - FreeXid(xid); + free_xid(xid); return rc; } -int cifs_get_inode_info(struct inode **pinode, - const unsigned char *full_path, FILE_ALL_INFO *pfindData, - struct super_block *sb, int xid, const __u16 *pfid) +int +cifs_get_inode_info(struct inode **inode, const char *full_path, + FILE_ALL_INFO *data, struct super_block *sb, int xid, + const __u16 *fid) { - int rc = 0, tmprc; - struct cifs_tcon *pTcon; + bool validinum = false; + __u16 srchflgs; + int rc = 0, tmprc = ENOSYS; + struct cifs_tcon *tcon; + struct TCP_Server_Info *server; struct tcon_link *tlink; struct cifs_sb_info *cifs_sb = CIFS_SB(sb); char *buf = NULL; - bool adjustTZ = false; + bool adjust_tz = false; struct cifs_fattr fattr; + struct cifs_search_info *srchinf = NULL; tlink = cifs_sb_tlink(cifs_sb); if (IS_ERR(tlink)) return PTR_ERR(tlink); - pTcon = tlink_tcon(tlink); + tcon = tlink_tcon(tlink); + server = tcon->ses->server; - cFYI(1, "Getting info on %s", full_path); + cifs_dbg(FYI, "Getting info on %s\n", full_path); - if ((pfindData == NULL) && (*pinode != NULL)) { - if (CIFS_I(*pinode)->clientCanCacheRead) { - cFYI(1, "No need to revalidate cached inode sizes"); + if ((data == NULL) && (*inode != NULL)) { + if (CIFS_I(*inode)->clientCanCacheRead) { + cifs_dbg(FYI, "No need to revalidate cached inode sizes\n"); goto cgii_exit; } } - /* if file info not passed in then get it from server */ - if (pfindData == NULL) { + /* if inode info is not passed, get it from server */ + if (data == NULL) { + if (!server->ops->query_path_info) { + rc = -ENOSYS; + goto cgii_exit; + } buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL); if (buf == NULL) { rc = -ENOMEM; goto cgii_exit; } - pfindData = (FILE_ALL_INFO *)buf; - - /* could do find first instead but this returns more info */ - rc = CIFSSMBQPathInfo(xid, pTcon, full_path, pfindData, - 0 /* not legacy */, - cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); - /* BB optimize code so we do not make the above call - when server claims no NT SMB support and the above call - failed at least once - set flag in tcon or mount */ - if ((rc == -EOPNOTSUPP) || (rc == -EINVAL)) { - rc = SMBQueryInformation(xid, pTcon, full_path, - pfindData, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); - adjustTZ = true; - } + data = (FILE_ALL_INFO *)buf; + rc = server->ops->query_path_info(xid, tcon, cifs_sb, full_path, + data, &adjust_tz); } if (!rc) { - cifs_all_info_to_fattr(&fattr, (FILE_ALL_INFO *) pfindData, - cifs_sb, adjustTZ); + cifs_all_info_to_fattr(&fattr, (FILE_ALL_INFO *)data, cifs_sb, + adjust_tz); } else if (rc == -EREMOTE) { cifs_create_dfs_fattr(&fattr, sb); rc = 0; - } else { + } else if (rc == -EACCES && backup_cred(cifs_sb)) { + srchinf = kzalloc(sizeof(struct cifs_search_info), + GFP_KERNEL); + if (srchinf == NULL) { + rc = -ENOMEM; + goto cgii_exit; + } + + srchinf->endOfSearch = false; + srchinf->info_level = SMB_FIND_FILE_ID_FULL_DIR_INFO; + + srchflgs = CIFS_SEARCH_CLOSE_ALWAYS | + CIFS_SEARCH_CLOSE_AT_END | + CIFS_SEARCH_BACKUP_SEARCH; + + rc = CIFSFindFirst(xid, tcon, full_path, + cifs_sb, NULL, srchflgs, srchinf, false); + if (!rc) { + data = + (FILE_ALL_INFO *)srchinf->srch_entries_start; + + cifs_dir_info_to_fattr(&fattr, + (FILE_DIRECTORY_INFO *)data, cifs_sb); + fattr.cf_uniqueid = le64_to_cpu( + ((SEARCH_ID_FULL_DIR_INFO *)data)->UniqueId); + validinum = true; + + cifs_buf_release(srchinf->ntwrk_buf_start); + } + kfree(srchinf); + } else goto cgii_exit; - } /* * If an inode wasn't passed in, then get the inode number @@ -668,54 +713,41 @@ int cifs_get_inode_info(struct inode **pinode, * Is an i_ino of zero legal? Can we use that to check if the server * supports returning inode numbers? Are there other sanity checks we * can use to ensure that the server is really filling in that field? - * - * We can not use the IndexNumber field by default from Windows or - * Samba (in ALL_INFO buf) but we can request it explicitly. The SNIA - * CIFS spec claims that this value is unique within the scope of a - * share, and the windows docs hint that it's actually unique - * per-machine. - * - * There may be higher info levels that work but are there Windows - * server or network appliances for which IndexNumber field is not - * guaranteed unique? */ - if (*pinode == NULL) { + if (*inode == NULL) { if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) { - int rc1 = 0; - - rc1 = CIFSGetSrvInodeNumber(xid, pTcon, - full_path, &fattr.cf_uniqueid, - cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); - if (rc1 || !fattr.cf_uniqueid) { - cFYI(1, "GetSrvInodeNum rc %d", rc1); - fattr.cf_uniqueid = iunique(sb, ROOT_I); - cifs_autodisable_serverino(cifs_sb); + if (validinum == false) { + if (server->ops->get_srv_inum) + tmprc = server->ops->get_srv_inum(xid, + tcon, cifs_sb, full_path, + &fattr.cf_uniqueid, data); + if (tmprc) { + cifs_dbg(FYI, "GetSrvInodeNum rc %d\n", + tmprc); + fattr.cf_uniqueid = iunique(sb, ROOT_I); + cifs_autodisable_serverino(cifs_sb); + } } - } else { + } else fattr.cf_uniqueid = iunique(sb, ROOT_I); - } - } else { - fattr.cf_uniqueid = CIFS_I(*pinode)->uniqueid; - } + } else + fattr.cf_uniqueid = CIFS_I(*inode)->uniqueid; /* query for SFU type info if supported and needed */ if (fattr.cf_cifsattrs & ATTR_SYSTEM && cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) { tmprc = cifs_sfu_type(&fattr, full_path, cifs_sb, xid); if (tmprc) - cFYI(1, "cifs_sfu_type failed: %d", tmprc); + cifs_dbg(FYI, "cifs_sfu_type failed: %d\n", tmprc); } #ifdef CONFIG_CIFS_ACL /* fill in 0777 bits from ACL */ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) { - rc = cifs_acl_to_fattr(cifs_sb, &fattr, *pinode, full_path, - pfid); + rc = cifs_acl_to_fattr(cifs_sb, &fattr, *inode, full_path, fid); if (rc) { - cFYI(1, "%s: Getting ACL failed with error: %d", - __func__, rc); + cifs_dbg(FYI, "%s: Getting ACL failed with error: %d\n", + __func__, rc); goto cgii_exit; } } @@ -729,15 +761,15 @@ int cifs_get_inode_info(struct inode **pinode, if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS) { tmprc = CIFSCheckMFSymlink(&fattr, full_path, cifs_sb, xid); if (tmprc) - cFYI(1, "CIFSCheckMFSymlink: %d", tmprc); + cifs_dbg(FYI, "CIFSCheckMFSymlink: %d\n", tmprc); } - if (!*pinode) { - *pinode = cifs_iget(sb, &fattr); - if (!*pinode) + if (!*inode) { + *inode = cifs_iget(sb, &fattr); + if (!*inode) rc = -ENOMEM; } else { - cifs_fattr_to_inode(*pinode, &fattr); + cifs_fattr_to_inode(*inode, &fattr); } cgii_exit: @@ -750,38 +782,6 @@ static const struct inode_operations cifs_ipc_inode_ops = { .lookup = cifs_lookup, }; -char *cifs_build_path_to_root(struct smb_vol *vol, struct cifs_sb_info *cifs_sb, - struct cifs_tcon *tcon) -{ - int pplen = vol->prepath ? strlen(vol->prepath) : 0; - int dfsplen; - char *full_path = NULL; - - /* if no prefix path, simply set path to the root of share to "" */ - if (pplen == 0) { - full_path = kmalloc(1, GFP_KERNEL); - if (full_path) - full_path[0] = 0; - return full_path; - } - - if (tcon->Flags & SMB_SHARE_IS_IN_DFS) - dfsplen = strnlen(tcon->treeName, MAX_TREE_SIZE + 1); - else - dfsplen = 0; - - full_path = kmalloc(dfsplen + pplen + 1, GFP_KERNEL); - if (full_path == NULL) - return full_path; - - if (dfsplen) - strncpy(full_path, tcon->treeName, dfsplen); - strncpy(full_path + dfsplen, vol->prepath, pplen); - convert_delimiter(full_path, CIFS_DIR_SEP(cifs_sb)); - full_path[dfsplen + pplen] = 0; /* add trailing null */ - return full_path; -} - static int cifs_find_inode(struct inode *inode, void *opaque) { @@ -800,7 +800,7 @@ cifs_find_inode(struct inode *inode, void *opaque) return 0; /* if it's not a directory or has no dentries, then flag it */ - if (S_ISDIR(inode->i_mode) && !list_empty(&inode->i_dentry)) + if (S_ISDIR(inode->i_mode) && !hlist_empty(&inode->i_dentry)) fattr->cf_flags |= CIFS_FATTR_INO_COLLISION; return 1; @@ -827,7 +827,7 @@ inode_has_hashed_dentries(struct inode *inode) struct dentry *dentry; spin_lock(&inode->i_lock); - list_for_each_entry(dentry, &inode->i_dentry, d_alias) { + hlist_for_each_entry(dentry, &inode->i_dentry, d_alias) { if (!d_unhashed(dentry) || IS_ROOT(dentry)) { spin_unlock(&inode->i_lock); return true; @@ -845,7 +845,7 @@ cifs_iget(struct super_block *sb, struct cifs_fattr *fattr) struct inode *inode; retry_iget5_locked: - cFYI(1, "looking for uniqueid=%llu", fattr->cf_uniqueid); + cifs_dbg(FYI, "looking for uniqueid=%llu\n", fattr->cf_uniqueid); /* hash down to 32-bits on 32-bit arch */ hash = cifs_uniqueid_to_ino_t(fattr->cf_uniqueid); @@ -885,13 +885,13 @@ retry_iget5_locked: /* gets root inode */ struct inode *cifs_root_iget(struct super_block *sb) { - int xid; + unsigned int xid; struct cifs_sb_info *cifs_sb = CIFS_SB(sb); struct inode *inode = NULL; long rc; struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb); - xid = GetXid(); + xid = get_xid(); if (tcon->unix_ext) rc = cifs_get_inode_info_unix(&inode, "", sb, xid); else @@ -908,45 +908,44 @@ struct inode *cifs_root_iget(struct super_block *sb) #endif if (rc && tcon->ipc) { - cFYI(1, "ipc connection - fake read inode"); + cifs_dbg(FYI, "ipc connection - fake read inode\n"); + spin_lock(&inode->i_lock); inode->i_mode |= S_IFDIR; set_nlink(inode, 2); inode->i_op = &cifs_ipc_inode_ops; inode->i_fop = &simple_dir_operations; inode->i_uid = cifs_sb->mnt_uid; inode->i_gid = cifs_sb->mnt_gid; + spin_unlock(&inode->i_lock); } else if (rc) { iget_failed(inode); inode = ERR_PTR(rc); } out: - /* can not call macro FreeXid here since in a void func + /* can not call macro free_xid here since in a void func * TODO: This is no longer true */ - _FreeXid(xid); + _free_xid(xid); return inode; } -static int -cifs_set_file_info(struct inode *inode, struct iattr *attrs, int xid, - char *full_path, __u32 dosattr) +int +cifs_set_file_info(struct inode *inode, struct iattr *attrs, unsigned int xid, + char *full_path, __u32 dosattr) { - int rc; - int oplock = 0; - __u16 netfid; - __u32 netpid; bool set_time = false; - struct cifsFileInfo *open_file; - struct cifsInodeInfo *cifsInode = CIFS_I(inode); struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); - struct tcon_link *tlink = NULL; - struct cifs_tcon *pTcon; + struct TCP_Server_Info *server; FILE_BASIC_INFO info_buf; if (attrs == NULL) return -EINVAL; + server = cifs_sb_master_tcon(cifs_sb)->ses->server; + if (!server->ops->set_file_info) + return -ENOSYS; + if (attrs->ia_valid & ATTR_ATIME) { set_time = true; info_buf.LastAccessTime = @@ -968,7 +967,7 @@ cifs_set_file_info(struct inode *inode, struct iattr *attrs, int xid, * server times. */ if (set_time && (attrs->ia_valid & ATTR_CTIME)) { - cFYI(1, "CIFS - CTIME changed"); + cifs_dbg(FYI, "CIFS - CTIME changed\n"); info_buf.ChangeTime = cpu_to_le64(cifs_UnixTimeToNT(attrs->ia_ctime)); } else @@ -977,80 +976,17 @@ cifs_set_file_info(struct inode *inode, struct iattr *attrs, int xid, info_buf.CreationTime = 0; /* don't change */ info_buf.Attributes = cpu_to_le32(dosattr); - /* - * If the file is already open for write, just use that fileid - */ - open_file = find_writable_file(cifsInode, true); - if (open_file) { - netfid = open_file->netfid; - netpid = open_file->pid; - pTcon = tlink_tcon(open_file->tlink); - goto set_via_filehandle; - } - - tlink = cifs_sb_tlink(cifs_sb); - if (IS_ERR(tlink)) { - rc = PTR_ERR(tlink); - tlink = NULL; - goto out; - } - pTcon = tlink_tcon(tlink); - - /* - * NT4 apparently returns success on this call, but it doesn't - * really work. - */ - if (!(pTcon->ses->flags & CIFS_SES_NT4)) { - rc = CIFSSMBSetPathInfo(xid, pTcon, full_path, - &info_buf, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); - if (rc == 0) { - cifsInode->cifsAttrs = dosattr; - goto out; - } else if (rc != -EOPNOTSUPP && rc != -EINVAL) - goto out; - } - - cFYI(1, "calling SetFileInfo since SetPathInfo for " - "times not supported by this server"); - rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN, - SYNCHRONIZE | FILE_WRITE_ATTRIBUTES, - CREATE_NOT_DIR, &netfid, &oplock, - NULL, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); - - if (rc != 0) { - if (rc == -EIO) - rc = -EINVAL; - goto out; - } - - netpid = current->tgid; - -set_via_filehandle: - rc = CIFSSMBSetFileInfo(xid, pTcon, &info_buf, netfid, netpid); - if (!rc) - cifsInode->cifsAttrs = dosattr; - - if (open_file == NULL) - CIFSSMBClose(xid, pTcon, netfid); - else - cifsFileInfo_put(open_file); -out: - if (tlink != NULL) - cifs_put_tlink(tlink); - return rc; + return server->ops->set_file_info(inode, full_path, &info_buf, xid); } /* - * open the given file (if it isn't already), set the DELETE_ON_CLOSE bit + * Open the given file (if it isn't already), set the DELETE_ON_CLOSE bit * and rename it to a random name that hopefully won't conflict with * anything else. */ -static int -cifs_rename_pending_delete(char *full_path, struct dentry *dentry, int xid) +int +cifs_rename_pending_delete(const char *full_path, struct dentry *dentry, + const unsigned int xid) { int oplock = 0; int rc; @@ -1068,6 +1004,15 @@ cifs_rename_pending_delete(char *full_path, struct dentry *dentry, int xid) return PTR_ERR(tlink); tcon = tlink_tcon(tlink); + /* + * We cannot rename the file if the server doesn't support + * CAP_INFOLEVEL_PASSTHRU + */ + if (!(tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU)) { + rc = -EBUSY; + goto out; + } + rc = CIFSSMBOpen(xid, tcon, full_path, FILE_OPEN, DELETE|FILE_WRITE_ATTRIBUTES, CREATE_NOT_DIR, &netfid, &oplock, NULL, cifs_sb->local_nls, @@ -1096,7 +1041,7 @@ cifs_rename_pending_delete(char *full_path, struct dentry *dentry, int xid) current->tgid); /* although we would like to mark the file hidden if that fails we will still try to rename it */ - if (rc != 0) + if (!rc) cifsInode->cifsAttrs = dosattr; else dosattr = origattr; /* since not able to change them */ @@ -1107,7 +1052,7 @@ cifs_rename_pending_delete(char *full_path, struct dentry *dentry, int xid) cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); if (rc != 0) { - rc = -ETXTBSY; + rc = -EBUSY; goto undo_setattr; } @@ -1126,7 +1071,7 @@ cifs_rename_pending_delete(char *full_path, struct dentry *dentry, int xid) if (rc == -ENOENT) rc = 0; else if (rc != 0) { - rc = -ETXTBSY; + rc = -EBUSY; goto undo_rename; } cifsInode->delete_pending = true; @@ -1159,6 +1104,15 @@ undo_setattr: goto out_close; } +/* copied from fs/nfs/dir.c with small changes */ +static void +cifs_drop_nlink(struct inode *inode) +{ + spin_lock(&inode->i_lock); + if (inode->i_nlink > 0) + drop_nlink(inode); + spin_unlock(&inode->i_lock); +} /* * If dentry->d_inode is null (usually meaning the cached dentry @@ -1170,7 +1124,7 @@ undo_setattr: int cifs_unlink(struct inode *dir, struct dentry *dentry) { int rc = 0; - int xid; + unsigned int xid; char *full_path = NULL; struct inode *inode = dentry->d_inode; struct cifsInodeInfo *cifs_inode; @@ -1178,17 +1132,19 @@ int cifs_unlink(struct inode *dir, struct dentry *dentry) struct cifs_sb_info *cifs_sb = CIFS_SB(sb); struct tcon_link *tlink; struct cifs_tcon *tcon; + struct TCP_Server_Info *server; struct iattr *attrs = NULL; __u32 dosattr = 0, origattr = 0; - cFYI(1, "cifs_unlink, dir=0x%p, dentry=0x%p", dir, dentry); + cifs_dbg(FYI, "cifs_unlink, dir=0x%p, dentry=0x%p\n", dir, dentry); tlink = cifs_sb_tlink(cifs_sb); if (IS_ERR(tlink)) return PTR_ERR(tlink); tcon = tlink_tcon(tlink); + server = tcon->ses->server; - xid = GetXid(); + xid = get_xid(); /* Unlink can be called from rename so we can not take the * sb->s_vfs_rename_mutex here */ @@ -1198,31 +1154,37 @@ int cifs_unlink(struct inode *dir, struct dentry *dentry) goto unlink_out; } - if ((tcon->ses->capabilities & CAP_UNIX) && - (CIFS_UNIX_POSIX_PATH_OPS_CAP & - le64_to_cpu(tcon->fsUnixInfo.Capability))) { + if (cap_unix(tcon->ses) && (CIFS_UNIX_POSIX_PATH_OPS_CAP & + le64_to_cpu(tcon->fsUnixInfo.Capability))) { rc = CIFSPOSIXDelFile(xid, tcon, full_path, SMB_POSIX_UNLINK_FILE_TARGET, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - cFYI(1, "posix del rc %d", rc); + cifs_dbg(FYI, "posix del rc %d\n", rc); if ((rc == 0) || (rc == -ENOENT)) goto psx_del_no_retry; } retry_std_delete: - rc = CIFSSMBDelFile(xid, tcon, full_path, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); + if (!server->ops->unlink) { + rc = -ENOSYS; + goto psx_del_no_retry; + } + + rc = server->ops->unlink(xid, tcon, full_path, cifs_sb); psx_del_no_retry: if (!rc) { if (inode) - drop_nlink(inode); + cifs_drop_nlink(inode); } else if (rc == -ENOENT) { d_drop(dentry); - } else if (rc == -ETXTBSY) { - rc = cifs_rename_pending_delete(full_path, dentry, xid); - if (rc == 0) - drop_nlink(inode); + } else if (rc == -EBUSY) { + if (server->ops->rename_pending_delete) { + rc = server->ops->rename_pending_delete(full_path, + dentry, xid); + if (rc == 0) + cifs_drop_nlink(inode); + } } else if ((rc == -EACCES) && (dosattr == 0) && inode) { attrs = kzalloc(sizeof(*attrs), GFP_KERNEL); if (attrs == NULL) { @@ -1264,31 +1226,168 @@ out_reval: unlink_out: kfree(full_path); kfree(attrs); - FreeXid(xid); + free_xid(xid); cifs_put_tlink(tlink); return rc; } +static int +cifs_mkdir_qinfo(struct inode *parent, struct dentry *dentry, umode_t mode, + const char *full_path, struct cifs_sb_info *cifs_sb, + struct cifs_tcon *tcon, const unsigned int xid) +{ + int rc = 0; + struct inode *inode = NULL; + + if (tcon->unix_ext) + rc = cifs_get_inode_info_unix(&inode, full_path, parent->i_sb, + xid); + else + rc = cifs_get_inode_info(&inode, full_path, NULL, parent->i_sb, + xid, NULL); + + if (rc) + return rc; + + /* + * setting nlink not necessary except in cases where we failed to get it + * from the server or was set bogus. Also, since this is a brand new + * inode, no need to grab the i_lock before setting the i_nlink. + */ + if (inode->i_nlink < 2) + set_nlink(inode, 2); + mode &= ~current_umask(); + /* must turn on setgid bit if parent dir has it */ + if (parent->i_mode & S_ISGID) + mode |= S_ISGID; + + if (tcon->unix_ext) { + struct cifs_unix_set_info_args args = { + .mode = mode, + .ctime = NO_CHANGE_64, + .atime = NO_CHANGE_64, + .mtime = NO_CHANGE_64, + .device = 0, + }; + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) { + args.uid = current_fsuid(); + if (parent->i_mode & S_ISGID) + args.gid = parent->i_gid; + else + args.gid = current_fsgid(); + } else { + args.uid = INVALID_UID; /* no change */ + args.gid = INVALID_GID; /* no change */ + } + CIFSSMBUnixSetPathInfo(xid, tcon, full_path, &args, + cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & + CIFS_MOUNT_MAP_SPECIAL_CHR); + } else { + struct TCP_Server_Info *server = tcon->ses->server; + if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) && + (mode & S_IWUGO) == 0 && server->ops->mkdir_setinfo) + server->ops->mkdir_setinfo(inode, full_path, cifs_sb, + tcon, xid); + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM) + inode->i_mode = (mode | S_IFDIR); + + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) { + inode->i_uid = current_fsuid(); + if (inode->i_mode & S_ISGID) + inode->i_gid = parent->i_gid; + else + inode->i_gid = current_fsgid(); + } + } + d_instantiate(dentry, inode); + return rc; +} + +static int +cifs_posix_mkdir(struct inode *inode, struct dentry *dentry, umode_t mode, + const char *full_path, struct cifs_sb_info *cifs_sb, + struct cifs_tcon *tcon, const unsigned int xid) +{ + int rc = 0; + u32 oplock = 0; + FILE_UNIX_BASIC_INFO *info = NULL; + struct inode *newinode = NULL; + struct cifs_fattr fattr; + + info = kzalloc(sizeof(FILE_UNIX_BASIC_INFO), GFP_KERNEL); + if (info == NULL) { + rc = -ENOMEM; + goto posix_mkdir_out; + } + + mode &= ~current_umask(); + rc = CIFSPOSIXCreate(xid, tcon, SMB_O_DIRECTORY | SMB_O_CREAT, mode, + NULL /* netfid */, info, &oplock, full_path, + cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & + CIFS_MOUNT_MAP_SPECIAL_CHR); + if (rc == -EOPNOTSUPP) + goto posix_mkdir_out; + else if (rc) { + cifs_dbg(FYI, "posix mkdir returned 0x%x\n", rc); + d_drop(dentry); + goto posix_mkdir_out; + } + + if (info->Type == cpu_to_le32(-1)) + /* no return info, go query for it */ + goto posix_mkdir_get_info; + /* + * BB check (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID ) to see if + * need to set uid/gid. + */ + + cifs_unix_basic_to_fattr(&fattr, info, cifs_sb); + cifs_fill_uniqueid(inode->i_sb, &fattr); + newinode = cifs_iget(inode->i_sb, &fattr); + if (!newinode) + goto posix_mkdir_get_info; + + d_instantiate(dentry, newinode); + +#ifdef CONFIG_CIFS_DEBUG2 + cifs_dbg(FYI, "instantiated dentry %p %s to inode %p\n", + dentry, dentry->d_name.name, newinode); + + if (newinode->i_nlink != 2) + cifs_dbg(FYI, "unexpected number of links %d\n", + newinode->i_nlink); +#endif + +posix_mkdir_out: + kfree(info); + return rc; +posix_mkdir_get_info: + rc = cifs_mkdir_qinfo(inode, dentry, mode, full_path, cifs_sb, tcon, + xid); + goto posix_mkdir_out; +} + int cifs_mkdir(struct inode *inode, struct dentry *direntry, umode_t mode) { - int rc = 0, tmprc; - int xid; + int rc = 0; + unsigned int xid; struct cifs_sb_info *cifs_sb; struct tcon_link *tlink; - struct cifs_tcon *pTcon; - char *full_path = NULL; - struct inode *newinode = NULL; - struct cifs_fattr fattr; + struct cifs_tcon *tcon; + struct TCP_Server_Info *server; + char *full_path; - cFYI(1, "In cifs_mkdir, mode = 0x%hx inode = 0x%p", mode, inode); + cifs_dbg(FYI, "In cifs_mkdir, mode = 0x%hx inode = 0x%p\n", + mode, inode); cifs_sb = CIFS_SB(inode->i_sb); tlink = cifs_sb_tlink(cifs_sb); if (IS_ERR(tlink)) return PTR_ERR(tlink); - pTcon = tlink_tcon(tlink); + tcon = tlink_tcon(tlink); - xid = GetXid(); + xid = get_xid(); full_path = build_path_from_dentry(direntry); if (full_path == NULL) { @@ -1296,148 +1395,31 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, umode_t mode) goto mkdir_out; } - if ((pTcon->ses->capabilities & CAP_UNIX) && - (CIFS_UNIX_POSIX_PATH_OPS_CAP & - le64_to_cpu(pTcon->fsUnixInfo.Capability))) { - u32 oplock = 0; - FILE_UNIX_BASIC_INFO *pInfo = - kzalloc(sizeof(FILE_UNIX_BASIC_INFO), GFP_KERNEL); - if (pInfo == NULL) { - rc = -ENOMEM; + if (cap_unix(tcon->ses) && (CIFS_UNIX_POSIX_PATH_OPS_CAP & + le64_to_cpu(tcon->fsUnixInfo.Capability))) { + rc = cifs_posix_mkdir(inode, direntry, mode, full_path, cifs_sb, + tcon, xid); + if (rc != -EOPNOTSUPP) goto mkdir_out; - } - - mode &= ~current_umask(); - rc = CIFSPOSIXCreate(xid, pTcon, SMB_O_DIRECTORY | SMB_O_CREAT, - mode, NULL /* netfid */, pInfo, &oplock, - full_path, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); - if (rc == -EOPNOTSUPP) { - kfree(pInfo); - goto mkdir_retry_old; - } else if (rc) { - cFYI(1, "posix mkdir returned 0x%x", rc); - d_drop(direntry); - } else { - if (pInfo->Type == cpu_to_le32(-1)) { - /* no return info, go query for it */ - kfree(pInfo); - goto mkdir_get_info; - } -/*BB check (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID ) to see if need - to set uid/gid */ - - cifs_unix_basic_to_fattr(&fattr, pInfo, cifs_sb); - cifs_fill_uniqueid(inode->i_sb, &fattr); - newinode = cifs_iget(inode->i_sb, &fattr); - if (!newinode) { - kfree(pInfo); - goto mkdir_get_info; - } - - d_instantiate(direntry, newinode); + } -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, "instantiated dentry %p %s to inode %p", - direntry, direntry->d_name.name, newinode); + server = tcon->ses->server; - if (newinode->i_nlink != 2) - cFYI(1, "unexpected number of links %d", - newinode->i_nlink); -#endif - } - kfree(pInfo); + if (!server->ops->mkdir) { + rc = -ENOSYS; goto mkdir_out; } -mkdir_retry_old: + /* BB add setting the equivalent of mode via CreateX w/ACLs */ - rc = CIFSSMBMkDir(xid, pTcon, full_path, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); + rc = server->ops->mkdir(xid, tcon, full_path, cifs_sb); if (rc) { - cFYI(1, "cifs_mkdir returned 0x%x", rc); + cifs_dbg(FYI, "cifs_mkdir returned 0x%x\n", rc); d_drop(direntry); - } else { -mkdir_get_info: - if (pTcon->unix_ext) - rc = cifs_get_inode_info_unix(&newinode, full_path, - inode->i_sb, xid); - else - rc = cifs_get_inode_info(&newinode, full_path, NULL, - inode->i_sb, xid, NULL); - - d_instantiate(direntry, newinode); - /* setting nlink not necessary except in cases where we - * failed to get it from the server or was set bogus */ - if ((direntry->d_inode) && (direntry->d_inode->i_nlink < 2)) - set_nlink(direntry->d_inode, 2); - - mode &= ~current_umask(); - /* must turn on setgid bit if parent dir has it */ - if (inode->i_mode & S_ISGID) - mode |= S_ISGID; - - if (pTcon->unix_ext) { - struct cifs_unix_set_info_args args = { - .mode = mode, - .ctime = NO_CHANGE_64, - .atime = NO_CHANGE_64, - .mtime = NO_CHANGE_64, - .device = 0, - }; - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) { - args.uid = (__u64)current_fsuid(); - if (inode->i_mode & S_ISGID) - args.gid = (__u64)inode->i_gid; - else - args.gid = (__u64)current_fsgid(); - } else { - args.uid = NO_CHANGE_64; - args.gid = NO_CHANGE_64; - } - CIFSSMBUnixSetPathInfo(xid, pTcon, full_path, &args, - cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); - } else { - if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) && - (mode & S_IWUGO) == 0) { - FILE_BASIC_INFO pInfo; - struct cifsInodeInfo *cifsInode; - u32 dosattrs; - - memset(&pInfo, 0, sizeof(pInfo)); - cifsInode = CIFS_I(newinode); - dosattrs = cifsInode->cifsAttrs|ATTR_READONLY; - pInfo.Attributes = cpu_to_le32(dosattrs); - tmprc = CIFSSMBSetPathInfo(xid, pTcon, - full_path, &pInfo, - cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); - if (tmprc == 0) - cifsInode->cifsAttrs = dosattrs; - } - if (direntry->d_inode) { - if (cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_DYNPERM) - direntry->d_inode->i_mode = - (mode | S_IFDIR); - - if (cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_SET_UID) { - direntry->d_inode->i_uid = - current_fsuid(); - if (inode->i_mode & S_ISGID) - direntry->d_inode->i_gid = - inode->i_gid; - else - direntry->d_inode->i_gid = - current_fsgid(); - } - } - } + goto mkdir_out; } + + rc = cifs_mkdir_qinfo(inode, direntry, mode, full_path, cifs_sb, tcon, + xid); mkdir_out: /* * Force revalidate to get parent dir info when needed since cached @@ -1445,7 +1427,7 @@ mkdir_out: */ CIFS_I(inode)->time = 0; kfree(full_path); - FreeXid(xid); + free_xid(xid); cifs_put_tlink(tlink); return rc; } @@ -1453,16 +1435,17 @@ mkdir_out: int cifs_rmdir(struct inode *inode, struct dentry *direntry) { int rc = 0; - int xid; + unsigned int xid; struct cifs_sb_info *cifs_sb; struct tcon_link *tlink; - struct cifs_tcon *pTcon; + struct cifs_tcon *tcon; + struct TCP_Server_Info *server; char *full_path = NULL; struct cifsInodeInfo *cifsInode; - cFYI(1, "cifs_rmdir, inode = 0x%p", inode); + cifs_dbg(FYI, "cifs_rmdir, inode = 0x%p\n", inode); - xid = GetXid(); + xid = get_xid(); full_path = build_path_from_dentry(direntry); if (full_path == NULL) { @@ -1476,10 +1459,16 @@ int cifs_rmdir(struct inode *inode, struct dentry *direntry) rc = PTR_ERR(tlink); goto rmdir_exit; } - pTcon = tlink_tcon(tlink); + tcon = tlink_tcon(tlink); + server = tcon->ses->server; + + if (!server->ops->rmdir) { + rc = -ENOSYS; + cifs_put_tlink(tlink); + goto rmdir_exit; + } - rc = CIFSSMBRmDir(xid, pTcon, full_path, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); + rc = server->ops->rmdir(xid, tcon, full_path, cifs_sb); cifs_put_tlink(tlink); if (!rc) { @@ -1505,36 +1494,40 @@ int cifs_rmdir(struct inode *inode, struct dentry *direntry) rmdir_exit: kfree(full_path); - FreeXid(xid); + free_xid(xid); return rc; } static int -cifs_do_rename(int xid, struct dentry *from_dentry, const char *fromPath, - struct dentry *to_dentry, const char *toPath) +cifs_do_rename(const unsigned int xid, struct dentry *from_dentry, + const char *from_path, struct dentry *to_dentry, + const char *to_path) { struct cifs_sb_info *cifs_sb = CIFS_SB(from_dentry->d_sb); struct tcon_link *tlink; - struct cifs_tcon *pTcon; + struct cifs_tcon *tcon; + struct TCP_Server_Info *server; __u16 srcfid; int oplock, rc; tlink = cifs_sb_tlink(cifs_sb); if (IS_ERR(tlink)) return PTR_ERR(tlink); - pTcon = tlink_tcon(tlink); + tcon = tlink_tcon(tlink); + server = tcon->ses->server; + + if (!server->ops->rename) + return -ENOSYS; /* try path-based rename first */ - rc = CIFSSMBRename(xid, pTcon, fromPath, toPath, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + rc = server->ops->rename(xid, tcon, from_path, to_path, cifs_sb); /* - * don't bother with rename by filehandle unless file is busy and - * source Note that cross directory moves do not work with + * Don't bother with rename by filehandle unless file is busy and + * source. Note that cross directory moves do not work with * rename by filehandle to various Windows servers. */ - if (rc == 0 || rc != -ETXTBSY) + if (rc == 0 || rc != -EBUSY) goto do_rename_exit; /* open-file renames don't work across directories */ @@ -1542,35 +1535,35 @@ cifs_do_rename(int xid, struct dentry *from_dentry, const char *fromPath, goto do_rename_exit; /* open the file to be renamed -- we need DELETE perms */ - rc = CIFSSMBOpen(xid, pTcon, fromPath, FILE_OPEN, DELETE, + rc = CIFSSMBOpen(xid, tcon, from_path, FILE_OPEN, DELETE, CREATE_NOT_DIR, &srcfid, &oplock, NULL, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - if (rc == 0) { - rc = CIFSSMBRenameOpenFile(xid, pTcon, srcfid, + rc = CIFSSMBRenameOpenFile(xid, tcon, srcfid, (const char *) to_dentry->d_name.name, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - - CIFSSMBClose(xid, pTcon, srcfid); + CIFSSMBClose(xid, tcon, srcfid); } do_rename_exit: cifs_put_tlink(tlink); return rc; } -int cifs_rename(struct inode *source_dir, struct dentry *source_dentry, - struct inode *target_dir, struct dentry *target_dentry) +int +cifs_rename(struct inode *source_dir, struct dentry *source_dentry, + struct inode *target_dir, struct dentry *target_dentry) { - char *fromName = NULL; - char *toName = NULL; + char *from_name = NULL; + char *to_name = NULL; struct cifs_sb_info *cifs_sb; struct tcon_link *tlink; struct cifs_tcon *tcon; FILE_UNIX_BASIC_INFO *info_buf_source = NULL; FILE_UNIX_BASIC_INFO *info_buf_target; - int xid, rc, tmprc; + unsigned int xid; + int rc, tmprc; cifs_sb = CIFS_SB(source_dir->i_sb); tlink = cifs_sb_tlink(cifs_sb); @@ -1578,31 +1571,31 @@ int cifs_rename(struct inode *source_dir, struct dentry *source_dentry, return PTR_ERR(tlink); tcon = tlink_tcon(tlink); - xid = GetXid(); + xid = get_xid(); /* * we already have the rename sem so we do not need to * grab it again here to protect the path integrity */ - fromName = build_path_from_dentry(source_dentry); - if (fromName == NULL) { + from_name = build_path_from_dentry(source_dentry); + if (from_name == NULL) { rc = -ENOMEM; goto cifs_rename_exit; } - toName = build_path_from_dentry(target_dentry); - if (toName == NULL) { + to_name = build_path_from_dentry(target_dentry); + if (to_name == NULL) { rc = -ENOMEM; goto cifs_rename_exit; } - rc = cifs_do_rename(xid, source_dentry, fromName, - target_dentry, toName); + rc = cifs_do_rename(xid, source_dentry, from_name, target_dentry, + to_name); if (rc == -EEXIST && tcon->unix_ext) { /* - * Are src and dst hardlinks of same inode? We can - * only tell with unix extensions enabled + * Are src and dst hardlinks of same inode? We can only tell + * with unix extensions enabled. */ info_buf_source = kmalloc(2 * sizeof(FILE_UNIX_BASIC_INFO), @@ -1613,19 +1606,19 @@ int cifs_rename(struct inode *source_dir, struct dentry *source_dentry, } info_buf_target = info_buf_source + 1; - tmprc = CIFSSMBUnixQPathInfo(xid, tcon, fromName, - info_buf_source, - cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + tmprc = CIFSSMBUnixQPathInfo(xid, tcon, from_name, + info_buf_source, + cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & + CIFS_MOUNT_MAP_SPECIAL_CHR); if (tmprc != 0) goto unlink_target; - tmprc = CIFSSMBUnixQPathInfo(xid, tcon, toName, - info_buf_target, - cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + tmprc = CIFSSMBUnixQPathInfo(xid, tcon, to_name, + info_buf_target, + cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & + CIFS_MOUNT_MAP_SPECIAL_CHR); if (tmprc == 0 && (info_buf_source->UniqueId == info_buf_target->UniqueId)) { @@ -1633,8 +1626,11 @@ int cifs_rename(struct inode *source_dir, struct dentry *source_dentry, rc = 0; goto cifs_rename_exit; } - } /* else ... BB we could add the same check for Windows by - checking the UniqueId via FILE_INTERNAL_INFO */ + } + /* + * else ... BB we could add the same check for Windows by + * checking the UniqueId via FILE_INTERNAL_INFO + */ unlink_target: /* Try unlinking the target dentry if it's not negative */ @@ -1642,16 +1638,15 @@ unlink_target: tmprc = cifs_unlink(target_dir, target_dentry); if (tmprc) goto cifs_rename_exit; - - rc = cifs_do_rename(xid, source_dentry, fromName, - target_dentry, toName); + rc = cifs_do_rename(xid, source_dentry, from_name, + target_dentry, to_name); } cifs_rename_exit: kfree(info_buf_source); - kfree(fromName); - kfree(toName); - FreeXid(xid); + kfree(from_name); + kfree(to_name); + free_xid(xid); cifs_put_tlink(tlink); return rc; } @@ -1697,8 +1692,8 @@ cifs_invalidate_mapping(struct inode *inode) if (inode->i_mapping && inode->i_mapping->nrpages != 0) { rc = invalidate_inode_pages2(inode->i_mapping); if (rc) { - cERROR(1, "%s: could not invalidate inode %p", __func__, - inode); + cifs_dbg(VFS, "%s: could not invalidate inode %p\n", + __func__, inode); cifs_i->invalid_mapping = true; } } @@ -1710,7 +1705,7 @@ cifs_invalidate_mapping(struct inode *inode) int cifs_revalidate_file_attr(struct file *filp) { int rc = 0; - struct inode *inode = filp->f_path.dentry->d_inode; + struct inode *inode = file_inode(filp); struct cifsFileInfo *cfile = (struct cifsFileInfo *) filp->private_data; if (!cifs_inode_needs_reval(inode)) @@ -1726,7 +1721,7 @@ int cifs_revalidate_file_attr(struct file *filp) int cifs_revalidate_dentry_attr(struct dentry *dentry) { - int xid; + unsigned int xid; int rc = 0; struct inode *inode = dentry->d_inode; struct super_block *sb = dentry->d_sb; @@ -1738,7 +1733,7 @@ int cifs_revalidate_dentry_attr(struct dentry *dentry) if (!cifs_inode_needs_reval(inode)) return rc; - xid = GetXid(); + xid = get_xid(); /* can not safely grab the rename sem here if rename calls revalidate since that would deadlock */ @@ -1748,8 +1743,8 @@ int cifs_revalidate_dentry_attr(struct dentry *dentry) goto out; } - cFYI(1, "Update attributes: %s inode 0x%p count %d dentry: 0x%p d_time " - "%ld jiffies %ld", full_path, inode, inode->i_count.counter, + cifs_dbg(FYI, "Update attributes: %s inode 0x%p count %d dentry: 0x%p d_time %ld jiffies %ld\n", + full_path, inode, inode->i_count.counter, dentry, dentry->d_time, jiffies); if (cifs_sb_master_tcon(CIFS_SB(sb))->unix_ext) @@ -1760,14 +1755,14 @@ int cifs_revalidate_dentry_attr(struct dentry *dentry) out: kfree(full_path); - FreeXid(xid); + free_xid(xid); return rc; } int cifs_revalidate_file(struct file *filp) { int rc; - struct inode *inode = filp->f_path.dentry->d_inode; + struct inode *inode = file_inode(filp); rc = cifs_revalidate_file_attr(filp); if (rc) @@ -1823,11 +1818,12 @@ int cifs_getattr(struct vfsmount *mnt, struct dentry *dentry, stat->ino = CIFS_I(inode)->uniqueid; /* - * If on a multiuser mount without unix extensions, and the admin hasn't - * overridden them, set the ownership to the fsuid/fsgid of the current - * process. + * If on a multiuser mount without unix extensions or cifsacl being + * enabled, and the admin hasn't overridden them, set the ownership + * to the fsuid/fsgid of the current process. */ if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MULTIUSER) && + !(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) && !tcon->unix_ext) { if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID)) stat->uid = current_fsuid(); @@ -1868,14 +1864,15 @@ static void cifs_setsize(struct inode *inode, loff_t offset) static int cifs_set_file_size(struct inode *inode, struct iattr *attrs, - int xid, char *full_path) + unsigned int xid, char *full_path) { int rc; struct cifsFileInfo *open_file; struct cifsInodeInfo *cifsInode = CIFS_I(inode); struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); struct tcon_link *tlink = NULL; - struct cifs_tcon *pTcon = NULL; + struct cifs_tcon *tcon = NULL; + struct TCP_Server_Info *server; struct cifs_io_parms io_parms; /* @@ -1889,74 +1886,79 @@ cifs_set_file_size(struct inode *inode, struct iattr *attrs, */ open_file = find_writable_file(cifsInode, true); if (open_file) { - __u16 nfid = open_file->netfid; - __u32 npid = open_file->pid; - pTcon = tlink_tcon(open_file->tlink); - rc = CIFSSMBSetFileSize(xid, pTcon, attrs->ia_size, nfid, - npid, false); + tcon = tlink_tcon(open_file->tlink); + server = tcon->ses->server; + if (server->ops->set_file_size) + rc = server->ops->set_file_size(xid, tcon, open_file, + attrs->ia_size, false); + else + rc = -ENOSYS; cifsFileInfo_put(open_file); - cFYI(1, "SetFSize for attrs rc = %d", rc); + cifs_dbg(FYI, "SetFSize for attrs rc = %d\n", rc); if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) { unsigned int bytes_written; - io_parms.netfid = nfid; - io_parms.pid = npid; - io_parms.tcon = pTcon; + io_parms.netfid = open_file->fid.netfid; + io_parms.pid = open_file->pid; + io_parms.tcon = tcon; io_parms.offset = 0; io_parms.length = attrs->ia_size; rc = CIFSSMBWrite(xid, &io_parms, &bytes_written, NULL, NULL, 1); - cFYI(1, "Wrt seteof rc %d", rc); + cifs_dbg(FYI, "Wrt seteof rc %d\n", rc); } } else rc = -EINVAL; - if (rc != 0) { - if (pTcon == NULL) { - tlink = cifs_sb_tlink(cifs_sb); - if (IS_ERR(tlink)) - return PTR_ERR(tlink); - pTcon = tlink_tcon(tlink); - } + if (!rc) + goto set_size_out; - /* Set file size by pathname rather than by handle - either because no valid, writeable file handle for - it was found or because there was an error setting - it by handle */ - rc = CIFSSMBSetEOF(xid, pTcon, full_path, attrs->ia_size, - false, cifs_sb->local_nls, + if (tcon == NULL) { + tlink = cifs_sb_tlink(cifs_sb); + if (IS_ERR(tlink)) + return PTR_ERR(tlink); + tcon = tlink_tcon(tlink); + server = tcon->ses->server; + } + + /* + * Set file size by pathname rather than by handle either because no + * valid, writeable file handle for it was found or because there was + * an error setting it by handle. + */ + if (server->ops->set_path_size) + rc = server->ops->set_path_size(xid, tcon, full_path, + attrs->ia_size, cifs_sb, false); + else + rc = -ENOSYS; + cifs_dbg(FYI, "SetEOF by path (setattrs) rc = %d\n", rc); + if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) { + __u16 netfid; + int oplock = 0; + + rc = SMBLegacyOpen(xid, tcon, full_path, FILE_OPEN, + GENERIC_WRITE, CREATE_NOT_DIR, &netfid, + &oplock, NULL, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); - cFYI(1, "SetEOF by path (setattrs) rc = %d", rc); - if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) { - __u16 netfid; - int oplock = 0; - - rc = SMBLegacyOpen(xid, pTcon, full_path, - FILE_OPEN, GENERIC_WRITE, - CREATE_NOT_DIR, &netfid, &oplock, NULL, - cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); - if (rc == 0) { - unsigned int bytes_written; - - io_parms.netfid = netfid; - io_parms.pid = current->tgid; - io_parms.tcon = pTcon; - io_parms.offset = 0; - io_parms.length = attrs->ia_size; - rc = CIFSSMBWrite(xid, &io_parms, - &bytes_written, - NULL, NULL, 1); - cFYI(1, "wrt seteof rc %d", rc); - CIFSSMBClose(xid, pTcon, netfid); - } + CIFS_MOUNT_MAP_SPECIAL_CHR); + if (rc == 0) { + unsigned int bytes_written; + + io_parms.netfid = netfid; + io_parms.pid = current->tgid; + io_parms.tcon = tcon; + io_parms.offset = 0; + io_parms.length = attrs->ia_size; + rc = CIFSSMBWrite(xid, &io_parms, &bytes_written, NULL, + NULL, 1); + cifs_dbg(FYI, "wrt seteof rc %d\n", rc); + CIFSSMBClose(xid, tcon, netfid); } - if (tlink) - cifs_put_tlink(tlink); } + if (tlink) + cifs_put_tlink(tlink); +set_size_out: if (rc == 0) { cifsInode->server_eof = attrs->ia_size; cifs_setsize(inode, attrs->ia_size); @@ -1970,7 +1972,7 @@ static int cifs_setattr_unix(struct dentry *direntry, struct iattr *attrs) { int rc; - int xid; + unsigned int xid; char *full_path = NULL; struct inode *inode = direntry->d_inode; struct cifsInodeInfo *cifsInode = CIFS_I(inode); @@ -1980,10 +1982,10 @@ cifs_setattr_unix(struct dentry *direntry, struct iattr *attrs) struct cifs_unix_set_info_args *args = NULL; struct cifsFileInfo *open_file; - cFYI(1, "setattr_unix on file %s attrs->ia_valid=0x%x", + cifs_dbg(FYI, "setattr_unix on file %s attrs->ia_valid=0x%x\n", direntry->d_name.name, attrs->ia_valid); - xid = GetXid(); + xid = get_xid(); if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM) attrs->ia_valid |= ATTR_FORCE; @@ -2038,12 +2040,12 @@ cifs_setattr_unix(struct dentry *direntry, struct iattr *attrs) if (attrs->ia_valid & ATTR_UID) args->uid = attrs->ia_uid; else - args->uid = NO_CHANGE_64; + args->uid = INVALID_UID; /* no change */ if (attrs->ia_valid & ATTR_GID) args->gid = attrs->ia_gid; else - args->gid = NO_CHANGE_64; + args->gid = INVALID_GID; /* no change */ if (attrs->ia_valid & ATTR_ATIME) args->atime = cifs_UnixTimeToNT(attrs->ia_atime); @@ -2063,7 +2065,7 @@ cifs_setattr_unix(struct dentry *direntry, struct iattr *attrs) args->device = 0; open_file = find_writable_file(cifsInode, true); if (open_file) { - u16 nfid = open_file->netfid; + u16 nfid = open_file->fid.netfid; u32 npid = open_file->pid; pTcon = tlink_tcon(open_file->tlink); rc = CIFSSMBUnixSetFileInfo(xid, pTcon, args, nfid, npid); @@ -2103,16 +2105,16 @@ cifs_setattr_unix(struct dentry *direntry, struct iattr *attrs) out: kfree(args); kfree(full_path); - FreeXid(xid); + free_xid(xid); return rc; } static int cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs) { - int xid; - uid_t uid = NO_CHANGE_32; - gid_t gid = NO_CHANGE_32; + unsigned int xid; + kuid_t uid = INVALID_UID; + kgid_t gid = INVALID_GID; struct inode *inode = direntry->d_inode; struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); struct cifsInodeInfo *cifsInode = CIFS_I(inode); @@ -2121,9 +2123,9 @@ cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs) __u32 dosattr = 0; __u64 mode = NO_CHANGE_64; - xid = GetXid(); + xid = get_xid(); - cFYI(1, "setattr on file %s attrs->iavalid 0x%x", + cifs_dbg(FYI, "setattr on file %s attrs->iavalid 0x%x\n", direntry->d_name.name, attrs->ia_valid); if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM) @@ -2131,14 +2133,14 @@ cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs) rc = inode_change_ok(inode, attrs); if (rc < 0) { - FreeXid(xid); + free_xid(xid); return rc; } full_path = build_path_from_dentry(direntry); if (full_path == NULL) { rc = -ENOMEM; - FreeXid(xid); + free_xid(xid); return rc; } @@ -2171,12 +2173,12 @@ cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs) #ifdef CONFIG_CIFS_ACL if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) { - if (uid != NO_CHANGE_32 || gid != NO_CHANGE_32) { + if (uid_valid(uid) || gid_valid(gid)) { rc = id_mode_to_cifs_acl(inode, full_path, NO_CHANGE_64, uid, gid); if (rc) { - cFYI(1, "%s: Setting id failed with error: %d", - __func__, rc); + cifs_dbg(FYI, "%s: Setting id failed with error: %d\n", + __func__, rc); goto cifs_setattr_exit; } } @@ -2195,10 +2197,10 @@ cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs) #ifdef CONFIG_CIFS_ACL if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) { rc = id_mode_to_cifs_acl(inode, full_path, mode, - NO_CHANGE_32, NO_CHANGE_32); + INVALID_UID, INVALID_GID); if (rc) { - cFYI(1, "%s: Setting ACL failed with error: %d", - __func__, rc); + cifs_dbg(FYI, "%s: Setting ACL failed with error: %d\n", + __func__, rc); goto cifs_setattr_exit; } } else @@ -2264,7 +2266,7 @@ cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs) cifs_setattr_exit: kfree(full_path); - FreeXid(xid); + free_xid(xid); return rc; } @@ -2286,7 +2288,7 @@ cifs_setattr(struct dentry *direntry, struct iattr *attrs) #if 0 void cifs_delete_inode(struct inode *inode) { - cFYI(1, "In cifs_delete_inode, inode = 0x%p", inode); + cifs_dbg(FYI, "In cifs_delete_inode, inode = 0x%p\n", inode); /* may have to add back in if and when safe distributed caching of directories added e.g. via FindNotify */ } |