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[CIFS] Use fsuid (fsgid) more consistently instead of uid/gid in

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assembling smb requests when setuids and Linux protocol extensions enabled
and in checking more matching sessions in multiuser mount mode.

Pointed out by Shaggy.

Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Steve French 2005-12-01 17:12:59 -08:00
parent 5666c0947e
commit 83451879ab
5 changed files with 17 additions and 11 deletions
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6
fs/cifs/CHANGES
View File

@ -1,3 +1,7 @@
Version 1.40
------------
Use fsuid (fsgid) more consistently instead of uid (gid).
Version 1.39
------------
Defer close of a file handle slightly if pending writes depend on that handle
@ -7,6 +11,8 @@ Fix SFU style symlinks and mknod needed for servers which do not support the
CIFS Unix Extensions. Fix setfacl/getfacl on bigendian. Timeout negative
dentries so files that the client sees as deleted but that later get created
on the server will be recognized. Add client side permission check on setattr.
Timeout stuck requests better (where server has never responded or sent corrupt
responses)
Version 1.38
------------

2
fs/cifs/cifsfs.h
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@ -99,5 +99,5 @@ extern ssize_t cifs_getxattr(struct dentry *, const char *, void *, size_t);
extern ssize_t cifs_listxattr(struct dentry *, char *, size_t);
extern int cifs_ioctl (struct inode * inode, struct file * filep,
unsigned int command, unsigned long arg);
#define CIFS_VERSION "1.39"
#define CIFS_VERSION "1.40"
#endif /* _CIFSFS_H */

8
fs/cifs/dir.c
View File

@ -3,7 +3,7 @@
*
* vfs operations that deal with dentries
*
* Copyright (C) International Business Machines Corp., 2002,2003
* Copyright (C) International Business Machines Corp., 2002,2005
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
@ -200,8 +200,8 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
(oplock & CIFS_CREATE_ACTION))
if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode,
(__u64)current->euid,
(__u64)current->egid,
(__u64)current->fsuid,
(__u64)current->fsgid,
0 /* dev */,
cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
@ -325,7 +325,7 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
else if (pTcon->ses->capabilities & CAP_UNIX) {
if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
rc = CIFSSMBUnixSetPerms(xid, pTcon, full_path,
mode,(__u64)current->euid,(__u64)current->egid,
mode,(__u64)current->fsuid,(__u64)current->fsgid,
device_number, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);

4
fs/cifs/inode.c
View File

@ -750,8 +750,8 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
CIFSSMBUnixSetPerms(xid, pTcon, full_path,
mode,
(__u64)current->euid,
(__u64)current->egid,
(__u64)current->fsuid,
(__u64)current->fsgid,
0 /* dev_t */,
cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &

8
fs/cifs/misc.c
View File

@ -1,7 +1,7 @@
/*
* fs/cifs/misc.c
*
* Copyright (C) International Business Machines Corp., 2002,2004
* Copyright (C) International Business Machines Corp., 2002,2005
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
@ -348,12 +348,12 @@ header_assemble(struct smb_hdr *buffer, char smb_command /* command */ ,
/* BB Add support for establishing new tCon and SMB Session */
/* with userid/password pairs found on the smb session */
/* for other target tcp/ip addresses BB */
if(current->uid != treeCon->ses->linux_uid) {
cFYI(1,("Multiuser mode and UID did not match tcon uid "));
if(current->fsuid != treeCon->ses->linux_uid) {
cFYI(1,("Multiuser mode and UID did not match tcon uid"));
read_lock(&GlobalSMBSeslock);
list_for_each(temp_item, &GlobalSMBSessionList) {
ses = list_entry(temp_item, struct cifsSesInfo, cifsSessionList);
if(ses->linux_uid == current->uid) {
if(ses->linux_uid == current->fsuid) {
if(ses->server == treeCon->ses->server) {
cFYI(1,("found matching uid substitute right smb_uid"));
buffer->Uid = ses->Suid;