diff options
author | Steve French <sfrench@us.ibm.com> | 2005-11-29 20:20:10 -0800 |
---|---|---|
committer | Steve French <sfrench@us.ibm.com> | 2005-11-29 20:20:10 -0800 |
commit | 6473a559c336d5c407f9df412ca2f55357767ff8 (patch) | |
tree | ededf2b339de4541e98c78b5d537ab954d9dc413 /fs/cifs/inode.c | |
parent | 3abb92722ab1784b419dadb5444daf8ea9636905 (diff) |
[CIFS] Fix missing permission check on setattr when noperm mount option is
disabled. Also set mode, uid, gid better on mkdir and create for the
case when Unix Extensions is not enabled and setuids is enabled. This is
necessary to fix the hole in which chown could be allowed for non-root
users in some cases if root mounted, and also to display the mode and uid
properly in some cases.
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/inode.c')
-rw-r--r-- | fs/cifs/inode.c | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index d34325c887c..053c1cadf70 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -710,7 +710,7 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) char *full_path = NULL; struct inode *newinode = NULL; - cFYI(1, ("In cifs_mkdir, mode = 0x%x inode = 0x%p ", mode, inode)); + cFYI(1, ("In cifs_mkdir, mode = 0x%x inode = 0x%p", mode, inode)); xid = GetXid(); @@ -768,7 +768,16 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) /* BB to be implemented via Windows secrty descriptors eg CIFSSMBWinSetPerms(xid, pTcon, full_path, mode, -1, -1, local_nls); */ - } + if(direntry->d_inode) { + direntry->d_inode->i_mode = mode; + if(cifs_sb->mnt_cifs_flags & + CIFS_MOUNT_SET_UID) { + direntry->d_inode->i_uid = + current->fsuid; + direntry->d_inode->i_gid = + current->fsgid; + } + } } kfree(full_path); FreeXid(xid); @@ -1111,9 +1120,20 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) cFYI(1, ("In cifs_setattr, name = %s attrs->iavalid 0x%x ", direntry->d_name.name, attrs->ia_valid)); + cifs_sb = CIFS_SB(direntry->d_inode->i_sb); pTcon = cifs_sb->tcon; + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM == 0) { + /* check if we have permission to change attrs */ + rc = inode_change_ok(direntry->d_inode, attrs); + if(rc < 0) { + FreeXid(xid); + return rc; + } else + rc = 0; + } + down(&direntry->d_sb->s_vfs_rename_sem); full_path = build_path_from_dentry(direntry); up(&direntry->d_sb->s_vfs_rename_sem); @@ -1153,7 +1173,9 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) 1 /* 45 seconds */); cFYI(1,("Wrt seteof rc %d", rc)); } - } + } else + rc = -EINVAL; + if (rc != 0) { /* Set file size by pathname rather than by handle either because no valid, writeable file handle for |