diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-29 21:29:13 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-29 21:29:13 +0300 |
| commit | b0c4e2acdd6175a07107474f3cd7bdc062cf4d3d (patch) | |
| tree | 9b269c5a176175082ce8bd4806901152bb12728c /fs/cifs/inode.c | |
| parent | c624c86615fb8aa61fa76ed8c935446d06c80e77 (diff) | |
| parent | 7893242e2465aea6f2cbc2639da8fa5ce96e8cc2 (diff) | |
| download | linux-b0c4e2acdd6175a07107474f3cd7bdc062cf4d3d.tar.xz | |
Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Pull CIFS/SMB3 fixes from Steve French:
"Various CIFS/SMB3 fixes, most for stable"
* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
CIFS: Fix a possible invalid memory access in smb2_query_symlink()
fs/cifs: make share unaccessible at root level mountable
cifs: fix crash due to race in hmac(md5) handling
cifs: unbreak TCP session reuse
cifs: Check for existing directory when opening file with O_CREAT
Add MF-Symlinks support for SMB 2.0
Diffstat (limited to 'fs/cifs/inode.c')
| -rw-r--r-- | fs/cifs/inode.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 514dadb0575d..b87efd0c92d6 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -1002,10 +1002,26 @@ struct inode *cifs_root_iget(struct super_block *sb) struct inode *inode = NULL; long rc; struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb); + char *path = NULL; + int len; + + if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH) + && cifs_sb->prepath) { + len = strlen(cifs_sb->prepath); + path = kzalloc(len + 2 /* leading sep + null */, GFP_KERNEL); + if (path == NULL) + return ERR_PTR(-ENOMEM); + path[0] = '/'; + memcpy(path+1, cifs_sb->prepath, len); + } else { + path = kstrdup("", GFP_KERNEL); + if (path == NULL) + return ERR_PTR(-ENOMEM); + } xid = get_xid(); if (tcon->unix_ext) { - rc = cifs_get_inode_info_unix(&inode, "", sb, xid); + rc = cifs_get_inode_info_unix(&inode, path, sb, xid); /* some servers mistakenly claim POSIX support */ if (rc != -EOPNOTSUPP) goto iget_no_retry; @@ -1013,7 +1029,8 @@ struct inode *cifs_root_iget(struct super_block *sb) tcon->unix_ext = false; } - rc = cifs_get_inode_info(&inode, "", NULL, sb, xid, NULL); + convert_delimiter(path, CIFS_DIR_SEP(cifs_sb)); + rc = cifs_get_inode_info(&inode, path, NULL, sb, xid, NULL); iget_no_retry: if (!inode) { @@ -1042,6 +1059,7 @@ iget_no_retry: } out: + kfree(path); /* can not call macro free_xid here since in a void func * TODO: This is no longer true */ |