CIFS: Simplify cifs_mkdir call
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <smfrench@gmail.com>
This commit is contained in:
Pavel Shilovsky
Steve French
Родитель
b387e41e52
Коммит
ff691e9694
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@ -289,10 +289,10 @@ extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
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u16 fid, u32 pid_of_opener);
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extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
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struct cifs_tcon *tcon, char *file_name,
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struct cifs_tcon *tcon, const char *file_name,
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const struct cifs_unix_set_info_args *args,
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const struct nls_table *nls_codepage,
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int remap_special_chars);
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int remap);
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extern int CIFSSMBMkDir(const unsigned int xid, struct cifs_tcon *tcon,
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const char *newName,
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@ -5943,7 +5943,7 @@ CIFSSMBUnixSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
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int
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CIFSSMBUnixSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
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char *fileName,
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const char *file_name,
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const struct cifs_unix_set_info_args *args,
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const struct nls_table *nls_codepage, int remap)
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{
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@ -5964,14 +5964,14 @@ setPermsRetry:
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if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
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name_len =
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cifsConvertToUTF16((__le16 *) pSMB->FileName, fileName,
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cifsConvertToUTF16((__le16 *) pSMB->FileName, file_name,
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PATH_MAX, nls_codepage, remap);
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name_len++; /* trailing null */
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name_len *= 2;
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} else { /* BB improve the check for buffer overruns BB */
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name_len = strnlen(fileName, PATH_MAX);
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name_len = strnlen(file_name, PATH_MAX);
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name_len++; /* trailing null */
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strncpy(pSMB->FileName, fileName, name_len);
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strncpy(pSMB->FileName, file_name, name_len);
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}
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params = 6 + name_len;
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295
fs/cifs/inode.c
295
fs/cifs/inode.c
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@ -1219,16 +1219,165 @@ unlink_out:
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return rc;
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}
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static int
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cifs_mkdir_qinfo(struct inode *inode, struct dentry *dentry, umode_t mode,
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const char *full_path, struct cifs_sb_info *cifs_sb,
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struct cifs_tcon *tcon, const unsigned int xid)
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{
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int rc = 0;
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struct inode *newinode = NULL;
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if (tcon->unix_ext)
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rc = cifs_get_inode_info_unix(&newinode, full_path, inode->i_sb,
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xid);
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else
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rc = cifs_get_inode_info(&newinode, full_path, NULL,
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inode->i_sb, xid, NULL);
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if (rc)
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return rc;
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d_instantiate(dentry, newinode);
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/*
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* setting nlink not necessary except in cases where we failed to get it
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* from the server or was set bogus
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*/
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if ((dentry->d_inode) && (dentry->d_inode->i_nlink < 2))
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set_nlink(dentry->d_inode, 2);
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mode &= ~current_umask();
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/* must turn on setgid bit if parent dir has it */
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if (inode->i_mode & S_ISGID)
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mode |= S_ISGID;
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if (tcon->unix_ext) {
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struct cifs_unix_set_info_args args = {
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.mode = mode,
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.ctime = NO_CHANGE_64,
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.atime = NO_CHANGE_64,
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.mtime = NO_CHANGE_64,
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.device = 0,
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};
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if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
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args.uid = (__u64)current_fsuid();
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if (inode->i_mode & S_ISGID)
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args.gid = (__u64)inode->i_gid;
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else
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args.gid = (__u64)current_fsgid();
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} else {
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args.uid = NO_CHANGE_64;
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args.gid = NO_CHANGE_64;
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}
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CIFSSMBUnixSetPathInfo(xid, tcon, full_path, &args,
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cifs_sb->local_nls,
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cifs_sb->mnt_cifs_flags &
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CIFS_MOUNT_MAP_SPECIAL_CHR);
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} else {
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if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) &&
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(mode & S_IWUGO) == 0) {
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FILE_BASIC_INFO info;
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struct cifsInodeInfo *cifsInode;
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u32 dosattrs;
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int tmprc;
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memset(&info, 0, sizeof(info));
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cifsInode = CIFS_I(newinode);
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dosattrs = cifsInode->cifsAttrs|ATTR_READONLY;
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info.Attributes = cpu_to_le32(dosattrs);
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tmprc = CIFSSMBSetPathInfo(xid, tcon, full_path, &info,
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cifs_sb->local_nls,
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cifs_sb->mnt_cifs_flags &
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CIFS_MOUNT_MAP_SPECIAL_CHR);
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if (tmprc == 0)
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cifsInode->cifsAttrs = dosattrs;
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}
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if (dentry->d_inode) {
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if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM)
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dentry->d_inode->i_mode = (mode | S_IFDIR);
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if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
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dentry->d_inode->i_uid = current_fsuid();
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if (inode->i_mode & S_ISGID)
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dentry->d_inode->i_gid = inode->i_gid;
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else
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dentry->d_inode->i_gid =
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current_fsgid();
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}
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}
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}
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return rc;
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}
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static int
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cifs_posix_mkdir(struct inode *inode, struct dentry *dentry, umode_t mode,
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const char *full_path, struct cifs_sb_info *cifs_sb,
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struct cifs_tcon *tcon, const unsigned int xid)
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{
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int rc = 0;
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u32 oplock = 0;
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FILE_UNIX_BASIC_INFO *info = NULL;
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struct inode *newinode = NULL;
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struct cifs_fattr fattr;
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info = kzalloc(sizeof(FILE_UNIX_BASIC_INFO), GFP_KERNEL);
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if (info == NULL) {
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rc = -ENOMEM;
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goto posix_mkdir_out;
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}
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mode &= ~current_umask();
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rc = CIFSPOSIXCreate(xid, tcon, SMB_O_DIRECTORY | SMB_O_CREAT, mode,
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NULL /* netfid */, info, &oplock, full_path,
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cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
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CIFS_MOUNT_MAP_SPECIAL_CHR);
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if (rc == -EOPNOTSUPP)
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goto posix_mkdir_out;
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else if (rc) {
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cFYI(1, "posix mkdir returned 0x%x", rc);
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d_drop(dentry);
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goto posix_mkdir_out;
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}
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if (info->Type == cpu_to_le32(-1))
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/* no return info, go query for it */
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goto posix_mkdir_get_info;
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/*
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* BB check (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID ) to see if
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* need to set uid/gid.
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*/
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cifs_unix_basic_to_fattr(&fattr, info, cifs_sb);
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cifs_fill_uniqueid(inode->i_sb, &fattr);
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newinode = cifs_iget(inode->i_sb, &fattr);
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if (!newinode)
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goto posix_mkdir_get_info;
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d_instantiate(dentry, newinode);
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#ifdef CONFIG_CIFS_DEBUG2
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cFYI(1, "instantiated dentry %p %s to inode %p", dentry,
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dentry->d_name.name, newinode);
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if (newinode->i_nlink != 2)
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cFYI(1, "unexpected number of links %d", newinode->i_nlink);
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#endif
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posix_mkdir_out:
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kfree(info);
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return rc;
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posix_mkdir_get_info:
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rc = cifs_mkdir_qinfo(inode, dentry, mode, full_path, cifs_sb, tcon,
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xid);
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goto posix_mkdir_out;
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}
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int cifs_mkdir(struct inode *inode, struct dentry *direntry, umode_t mode)
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{
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int rc = 0, tmprc;
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int rc = 0;
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unsigned int xid;
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struct cifs_sb_info *cifs_sb;
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struct tcon_link *tlink;
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struct cifs_tcon *tcon;
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char *full_path = NULL;
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struct inode *newinode = NULL;
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struct cifs_fattr fattr;
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char *full_path;
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cFYI(1, "In cifs_mkdir, mode = 0x%hx inode = 0x%p", mode, inode);
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@ -1248,145 +1397,23 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, umode_t mode)
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if (cap_unix(tcon->ses) && (CIFS_UNIX_POSIX_PATH_OPS_CAP &
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le64_to_cpu(tcon->fsUnixInfo.Capability))) {
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u32 oplock = 0;
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FILE_UNIX_BASIC_INFO *pInfo =
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kzalloc(sizeof(FILE_UNIX_BASIC_INFO), GFP_KERNEL);
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if (pInfo == NULL) {
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rc = -ENOMEM;
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rc = cifs_posix_mkdir(inode, direntry, mode, full_path, cifs_sb,
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tcon, xid);
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if (rc != -EOPNOTSUPP)
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goto mkdir_out;
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}
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mode &= ~current_umask();
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rc = CIFSPOSIXCreate(xid, tcon, SMB_O_DIRECTORY | SMB_O_CREAT,
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mode, NULL /* netfid */, pInfo, &oplock,
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full_path, cifs_sb->local_nls,
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cifs_sb->mnt_cifs_flags &
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CIFS_MOUNT_MAP_SPECIAL_CHR);
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if (rc == -EOPNOTSUPP) {
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kfree(pInfo);
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goto mkdir_retry_old;
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} else if (rc) {
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cFYI(1, "posix mkdir returned 0x%x", rc);
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d_drop(direntry);
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} else {
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if (pInfo->Type == cpu_to_le32(-1)) {
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/* no return info, go query for it */
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kfree(pInfo);
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goto mkdir_get_info;
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}
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/*BB check (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID ) to see if need
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to set uid/gid */
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cifs_unix_basic_to_fattr(&fattr, pInfo, cifs_sb);
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cifs_fill_uniqueid(inode->i_sb, &fattr);
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newinode = cifs_iget(inode->i_sb, &fattr);
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if (!newinode) {
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kfree(pInfo);
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goto mkdir_get_info;
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}
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d_instantiate(direntry, newinode);
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#ifdef CONFIG_CIFS_DEBUG2
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cFYI(1, "instantiated dentry %p %s to inode %p",
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direntry, direntry->d_name.name, newinode);
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if (newinode->i_nlink != 2)
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cFYI(1, "unexpected number of links %d",
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newinode->i_nlink);
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#endif
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}
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kfree(pInfo);
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goto mkdir_out;
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}
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mkdir_retry_old:
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/* BB add setting the equivalent of mode via CreateX w/ACLs */
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rc = CIFSSMBMkDir(xid, tcon, full_path, cifs_sb->local_nls,
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cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
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if (rc) {
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cFYI(1, "cifs_mkdir returned 0x%x", rc);
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d_drop(direntry);
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} else {
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mkdir_get_info:
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if (tcon->unix_ext)
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rc = cifs_get_inode_info_unix(&newinode, full_path,
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inode->i_sb, xid);
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else
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rc = cifs_get_inode_info(&newinode, full_path, NULL,
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inode->i_sb, xid, NULL);
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d_instantiate(direntry, newinode);
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/* setting nlink not necessary except in cases where we
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* failed to get it from the server or was set bogus */
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if ((direntry->d_inode) && (direntry->d_inode->i_nlink < 2))
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set_nlink(direntry->d_inode, 2);
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mode &= ~current_umask();
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/* must turn on setgid bit if parent dir has it */
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if (inode->i_mode & S_ISGID)
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mode |= S_ISGID;
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if (tcon->unix_ext) {
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struct cifs_unix_set_info_args args = {
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.mode = mode,
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.ctime = NO_CHANGE_64,
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.atime = NO_CHANGE_64,
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.mtime = NO_CHANGE_64,
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.device = 0,
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};
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if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
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args.uid = (__u64)current_fsuid();
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if (inode->i_mode & S_ISGID)
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args.gid = (__u64)inode->i_gid;
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else
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args.gid = (__u64)current_fsgid();
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} else {
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args.uid = NO_CHANGE_64;
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args.gid = NO_CHANGE_64;
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}
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CIFSSMBUnixSetPathInfo(xid, tcon, full_path, &args,
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cifs_sb->local_nls,
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cifs_sb->mnt_cifs_flags &
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CIFS_MOUNT_MAP_SPECIAL_CHR);
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} else {
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if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) &&
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(mode & S_IWUGO) == 0) {
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FILE_BASIC_INFO pInfo;
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struct cifsInodeInfo *cifsInode;
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u32 dosattrs;
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memset(&pInfo, 0, sizeof(pInfo));
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cifsInode = CIFS_I(newinode);
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dosattrs = cifsInode->cifsAttrs|ATTR_READONLY;
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pInfo.Attributes = cpu_to_le32(dosattrs);
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tmprc = CIFSSMBSetPathInfo(xid, tcon,
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full_path, &pInfo,
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cifs_sb->local_nls,
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cifs_sb->mnt_cifs_flags &
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CIFS_MOUNT_MAP_SPECIAL_CHR);
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if (tmprc == 0)
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cifsInode->cifsAttrs = dosattrs;
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}
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if (direntry->d_inode) {
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if (cifs_sb->mnt_cifs_flags &
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CIFS_MOUNT_DYNPERM)
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direntry->d_inode->i_mode =
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(mode | S_IFDIR);
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if (cifs_sb->mnt_cifs_flags &
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CIFS_MOUNT_SET_UID) {
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direntry->d_inode->i_uid =
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current_fsuid();
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if (inode->i_mode & S_ISGID)
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direntry->d_inode->i_gid =
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inode->i_gid;
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else
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direntry->d_inode->i_gid =
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current_fsgid();
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}
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}
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}
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goto mkdir_out;
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}
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rc = cifs_mkdir_qinfo(inode, direntry, mode, full_path, cifs_sb, tcon,
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xid);
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mkdir_out:
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/*
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* Force revalidate to get parent dir info when needed since cached
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