diff options
author | Jens Axboe <jens.axboe@oracle.com> | 2009-05-22 20:28:35 +0200 |
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committer | Jens Axboe <jens.axboe@oracle.com> | 2009-05-22 20:28:35 +0200 |
commit | 9bd7de51ee8537094656149eaf45338cadb7d7d4 (patch) | |
tree | a691987319dfcdb07de2bce619746f88d26882c4 /fs/cifs/link.c | |
parent | e4b636366c00738b9609cda307014d71b1225b7f (diff) | |
parent | 6a44587ee716ac911082cbdec766e5b3f051c071 (diff) |
Merge branch 'master' into for-2.6.31
Conflicts:
drivers/ide/ide-io.c
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'fs/cifs/link.c')
-rw-r--r-- | fs/cifs/link.c | 52 |
1 files changed, 26 insertions, 26 deletions
diff --git a/fs/cifs/link.c b/fs/cifs/link.c index ea9d11e3dcb..cd83c53fcbb 100644 --- a/fs/cifs/link.c +++ b/fs/cifs/link.c @@ -107,48 +107,48 @@ void * cifs_follow_link(struct dentry *direntry, struct nameidata *nd) { struct inode *inode = direntry->d_inode; - int rc = -EACCES; + int rc = -ENOMEM; int xid; char *full_path = NULL; - char *target_path = ERR_PTR(-ENOMEM); - struct cifs_sb_info *cifs_sb; - struct cifsTconInfo *pTcon; + char *target_path = NULL; + struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); + struct cifsTconInfo *tcon = cifs_sb->tcon; xid = GetXid(); - full_path = build_path_from_dentry(direntry); + /* + * For now, we just handle symlinks with unix extensions enabled. + * Eventually we should handle NTFS reparse points, and MacOS + * symlink support. For instance... + * + * rc = CIFSSMBQueryReparseLinkInfo(...) + * + * For now, just return -EACCES when the server doesn't support posix + * extensions. Note that we still allow querying symlinks when posix + * extensions are manually disabled. We could disable these as well + * but there doesn't seem to be any harm in allowing the client to + * read them. + */ + if (!(tcon->ses->capabilities & CAP_UNIX)) { + rc = -EACCES; + goto out; + } + full_path = build_path_from_dentry(direntry); if (!full_path) goto out; cFYI(1, ("Full path: %s inode = 0x%p", full_path, inode)); - cifs_sb = CIFS_SB(inode->i_sb); - pTcon = cifs_sb->tcon; - - /* We could change this to: - if (pTcon->unix_ext) - but there does not seem any point in refusing to - get symlink info if we can, even if unix extensions - turned off for this mount */ - - if (pTcon->ses->capabilities & CAP_UNIX) - rc = CIFSSMBUnixQuerySymLink(xid, pTcon, full_path, - &target_path, - cifs_sb->local_nls); - else { - /* BB add read reparse point symlink code here */ - /* rc = CIFSSMBQueryReparseLinkInfo */ - /* BB Add code to Query ReparsePoint info */ - /* BB Add MAC style xsymlink check here if enabled */ - } + rc = CIFSSMBUnixQuerySymLink(xid, tcon, full_path, &target_path, + cifs_sb->local_nls); + kfree(full_path); +out: if (rc != 0) { kfree(target_path); target_path = ERR_PTR(rc); } - kfree(full_path); -out: FreeXid(xid); nd_set_link(nd, target_path); return NULL; |