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提交 0f36b018 编写于 作者: L Linus Torvalds
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Merge master.kernel.org:/pub/scm/linux/kernel/git/sfrench/cifs-2.6

上级 648bf4fb 47c886b3
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Showing with 729 addition and 183 deletion
fs/cifs/CHANGES
浏览文件 @ 0f36b018
Version 1.40
------------
Use fsuid (fsgid) more consistently instead of uid (gid). Improve performance
of readpages by eliminating one extra memcpy. Allow update of file size
from remote server even if file is open for write as long as mount is
directio. Recognize share mode security and send NTLM encrypted password
on tree connect if share mode negotiated.
Version 1.39
------------
Defer close of a file handle slightly if pending writes depend on that handle
......@@ -7,6 +15,8 @@ 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
------------
......
fs/cifs/README
浏览文件 @ 0f36b018
......@@ -436,7 +436,17 @@ A partial list of the supported mount options follows:
SFU does). In the future the bottom 9 bits of the mode
mode also will be emulated using queries of the security
descriptor (ACL).
sec Security mode. Allowed values are:
none attempt to connection as a null user (no name)
krb5 Use Kerberos version 5 authentication
krb5i Use Kerberos authentication and packet signing
ntlm Use NTLM password hashing (default)
ntlmi Use NTLM password hashing with signing (if
/proc/fs/cifs/PacketSigningEnabled on or if
server requires signing also can be the default)
ntlmv2 Use NTLMv2 password hashing
ntlmv2i Use NTLMv2 password hashing with packet signing
The mount.cifs mount helper also accepts a few mount options before -o
including:
......
fs/cifs/cifs_debug.c
浏览文件 @ 0f36b018
......@@ -219,6 +219,10 @@ cifs_stats_write(struct file *file, const char __user *buffer,
if (c == '1' || c == 'y' || c == 'Y' || c == '0') {
read_lock(&GlobalSMBSeslock);
#ifdef CONFIG_CIFS_STATS2
atomic_set(&totBufAllocCount, 0);
atomic_set(&totSmBufAllocCount, 0);
#endif /* CONFIG_CIFS_STATS2 */
list_for_each(tmp, &GlobalTreeConnectionList) {
tcon = list_entry(tmp, struct cifsTconInfo,
cifsConnectionList);
......@@ -276,6 +280,14 @@ cifs_stats_read(char *buf, char **beginBuffer, off_t offset,
smBufAllocCount.counter,cifs_min_small);
length += item_length;
buf += item_length;
#ifdef CONFIG_CIFS_STATS2
item_length = sprintf(buf, "Total Large %d Small %d Allocations\n",
atomic_read(&totBufAllocCount),
atomic_read(&totSmBufAllocCount));
length += item_length;
buf += item_length;
#endif /* CONFIG_CIFS_STATS2 */
item_length =
sprintf(buf,"Operations (MIDs): %d\n",
midCount.counter);
......@@ -389,8 +401,8 @@ static read_proc_t ntlmv2_enabled_read;
static write_proc_t ntlmv2_enabled_write;
static read_proc_t packet_signing_enabled_read;
static write_proc_t packet_signing_enabled_write;
static read_proc_t quotaEnabled_read;
static write_proc_t quotaEnabled_write;
static read_proc_t experimEnabled_read;
static write_proc_t experimEnabled_write;
static read_proc_t linuxExtensionsEnabled_read;
static write_proc_t linuxExtensionsEnabled_write;
......@@ -430,9 +442,9 @@ cifs_proc_init(void)
pde->write_proc = oplockEnabled_write;
pde = create_proc_read_entry("Experimental", 0, proc_fs_cifs,
quotaEnabled_read, NULL);
experimEnabled_read, NULL);
if (pde)
pde->write_proc = quotaEnabled_write;
pde->write_proc = experimEnabled_write;
pde = create_proc_read_entry("LinuxExtensionsEnabled", 0, proc_fs_cifs,
linuxExtensionsEnabled_read, NULL);
......@@ -574,14 +586,13 @@ oplockEnabled_write(struct file *file, const char __user *buffer,
}
static int
quotaEnabled_read(char *page, char **start, off_t off,
experimEnabled_read(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
int len;
len = sprintf(page, "%d\n", experimEnabled);
/* could also check if quotas are enabled in kernel
as a whole first */
len -= off;
*start = page + off;
......@@ -596,21 +607,23 @@ quotaEnabled_read(char *page, char **start, off_t off,
return len;
}
static int
quotaEnabled_write(struct file *file, const char __user *buffer,
experimEnabled_write(struct file *file, const char __user *buffer,
unsigned long count, void *data)
{
char c;
int rc;
char c;
int rc;
rc = get_user(c, buffer);
if (rc)
return rc;
if (c == '0' || c == 'n' || c == 'N')
experimEnabled = 0;
else if (c == '1' || c == 'y' || c == 'Y')
experimEnabled = 1;
rc = get_user(c, buffer);
if (rc)
return rc;
if (c == '0' || c == 'n' || c == 'N')
experimEnabled = 0;
else if (c == '1' || c == 'y' || c == 'Y')
experimEnabled = 1;
else if (c == '2')
experimEnabled = 2;
return count;
return count;
}
static int
......@@ -620,8 +633,6 @@ linuxExtensionsEnabled_read(char *page, char **start, off_t off,
int len;
len = sprintf(page, "%d\n", linuxExtEnabled);
/* could also check if quotas are enabled in kernel
as a whole first */
len -= off;
*start = page + off;
......
fs/cifs/cifs_fs_sb.h
浏览文件 @ 0f36b018
......@@ -24,9 +24,10 @@
#define CIFS_MOUNT_DIRECT_IO 8 /* do not write nor read through page cache */
#define CIFS_MOUNT_NO_XATTR 0x10 /* if set - disable xattr support */
#define CIFS_MOUNT_MAP_SPECIAL_CHR 0x20 /* remap illegal chars in filenames */
#define CIFS_MOUNT_POSIX_PATHS 0x40 /* Negotiate posix pathnames if possible. */
#define CIFS_MOUNT_UNX_EMUL 0x80 /* Network compat with SFUnix emulation */
#define CIFS_MOUNT_POSIX_PATHS 0x40 /* Negotiate posix pathnames if possible. */
#define CIFS_MOUNT_UNX_EMUL 0x80 /* Network compat with SFUnix emulation */
#define CIFS_MOUNT_NO_BRL 0x100 /* No sending byte range locks to srv */
#define CIFS_MOUNT_CIFS_ACL 0x200 /* send ACL requests to non-POSIX srv */
struct cifs_sb_info {
struct cifsTconInfo *tcon; /* primary mount */
......
fs/cifs/cifsacl.h 0 → 100644
浏览文件 @ 0f36b018
/*
* fs/cifs/cifsacl.h
*
* Copyright (c) International Business Machines Corp., 2005
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _CIFSACL_H
#define _CIFSACL_H
struct cifs_sid {
__u8 revision; /* revision level */
__u8 num_subauths;
__u8 authority[6];
__u32 sub_auth[4];
/* next sub_auth if any ... */
} __attribute__((packed));
/* everyone */
extern const struct cifs_sid sid_everyone;
/* group users */
extern const struct cifs_sid sid_user;
#endif /* _CIFSACL_H */
fs/cifs/cifsencrypt.c
浏览文件 @ 0f36b018
/*
* fs/cifs/cifsencrypt.c
*
* Copyright (C) International Business Machines Corp., 2003
* Copyright (C) International Business Machines Corp., 2005
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
......@@ -82,6 +82,59 @@ int cifs_sign_smb(struct smb_hdr * cifs_pdu, struct TCP_Server_Info * server,
return rc;
}
static int cifs_calc_signature2(const struct kvec * iov, int n_vec,
const char * key, char * signature)
{
struct MD5Context context;
if((iov == NULL) || (signature == NULL))
return -EINVAL;
MD5Init(&context);
MD5Update(&context,key,CIFS_SESSION_KEY_SIZE+16);
/* MD5Update(&context,cifs_pdu->Protocol,cifs_pdu->smb_buf_length); */ /* BB FIXME BB */
MD5Final(signature,&context);
return -EOPNOTSUPP;
/* return 0; */
}
int cifs_sign_smb2(struct kvec * iov, int n_vec, struct TCP_Server_Info *server,
__u32 * pexpected_response_sequence_number)
{
int rc = 0;
char smb_signature[20];
struct smb_hdr * cifs_pdu = iov[0].iov_base;
if((cifs_pdu == NULL) || (server == NULL))
return -EINVAL;
if((cifs_pdu->Flags2 & SMBFLG2_SECURITY_SIGNATURE) == 0)
return rc;
spin_lock(&GlobalMid_Lock);
cifs_pdu->Signature.Sequence.SequenceNumber =
cpu_to_le32(server->sequence_number);
cifs_pdu->Signature.Sequence.Reserved = 0;
*pexpected_response_sequence_number = server->sequence_number++;
server->sequence_number++;
spin_unlock(&GlobalMid_Lock);
rc = cifs_calc_signature2(iov, n_vec, server->mac_signing_key,
smb_signature);
if(rc)
memset(cifs_pdu->Signature.SecuritySignature, 0, 8);
else
memcpy(cifs_pdu->Signature.SecuritySignature, smb_signature, 8);
return rc;
}
int cifs_verify_signature(struct smb_hdr * cifs_pdu, const char * mac_key,
__u32 expected_sequence_number)
{
......
fs/cifs/cifsfs.c
浏览文件 @ 0f36b018
......@@ -513,6 +513,17 @@ static ssize_t cifs_file_aio_write(struct kiocb *iocb, const char __user *buf,
return written;
}
static loff_t cifs_llseek(struct file *file, loff_t offset, int origin)
{
/* origin == SEEK_END => we must revalidate the cached file length */
if (origin == 2) {
int retval = cifs_revalidate(file->f_dentry);
if (retval < 0)
return (loff_t)retval;
}
return remote_llseek(file, offset, origin);
}
static struct file_system_type cifs_fs_type = {
.owner = THIS_MODULE,
.name = "cifs",
......@@ -586,6 +597,7 @@ struct file_operations cifs_file_ops = {
.flush = cifs_flush,
.mmap = cifs_file_mmap,
.sendfile = generic_file_sendfile,
.llseek = cifs_llseek,
#ifdef CONFIG_CIFS_POSIX
.ioctl = cifs_ioctl,
#endif /* CONFIG_CIFS_POSIX */
......@@ -609,7 +621,7 @@ struct file_operations cifs_file_direct_ops = {
#ifdef CONFIG_CIFS_POSIX
.ioctl = cifs_ioctl,
#endif /* CONFIG_CIFS_POSIX */
.llseek = cifs_llseek,
#ifdef CONFIG_CIFS_EXPERIMENTAL
.dir_notify = cifs_dir_notify,
#endif /* CONFIG_CIFS_EXPERIMENTAL */
......@@ -627,6 +639,7 @@ struct file_operations cifs_file_nobrl_ops = {
.flush = cifs_flush,
.mmap = cifs_file_mmap,
.sendfile = generic_file_sendfile,
.llseek = cifs_llseek,
#ifdef CONFIG_CIFS_POSIX
.ioctl = cifs_ioctl,
#endif /* CONFIG_CIFS_POSIX */
......@@ -649,7 +662,7 @@ struct file_operations cifs_file_direct_nobrl_ops = {
#ifdef CONFIG_CIFS_POSIX
.ioctl = cifs_ioctl,
#endif /* CONFIG_CIFS_POSIX */
.llseek = cifs_llseek,
#ifdef CONFIG_CIFS_EXPERIMENTAL
.dir_notify = cifs_dir_notify,
#endif /* CONFIG_CIFS_EXPERIMENTAL */
......@@ -733,7 +746,7 @@ cifs_init_request_bufs(void)
kmem_cache_destroy(cifs_req_cachep);
return -ENOMEM;
}
/* 256 (MAX_CIFS_HDR_SIZE bytes is enough for most SMB responses and
/* MAX_CIFS_SMALL_BUFFER_SIZE bytes is enough for most SMB responses and
almost all handle based requests (but not write response, nor is it
sufficient for path based requests). A smaller size would have
been more efficient (compacting multiple slab items on one 4k page)
......@@ -742,7 +755,8 @@ cifs_init_request_bufs(void)
efficient to alloc 1 per page off the slab compared to 17K (5page)
alloc of large cifs buffers even when page debugging is on */
cifs_sm_req_cachep = kmem_cache_create("cifs_small_rq",
MAX_CIFS_HDR_SIZE, 0, SLAB_HWCACHE_ALIGN, NULL, NULL);
MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN,
NULL, NULL);
if (cifs_sm_req_cachep == NULL) {
mempool_destroy(cifs_req_poolp);
kmem_cache_destroy(cifs_req_cachep);
......@@ -954,6 +968,12 @@ init_cifs(void)
atomic_set(&tconInfoReconnectCount, 0);
atomic_set(&bufAllocCount, 0);
atomic_set(&smBufAllocCount, 0);
#ifdef CONFIG_CIFS_STATS2
atomic_set(&totBufAllocCount, 0);
atomic_set(&totSmBufAllocCount, 0);
#endif /* CONFIG_CIFS_STATS2 */
atomic_set(&midCount, 0);
GlobalCurrentXid = 0;
GlobalTotalActiveXid = 0;
......
fs/cifs/cifsfs.h
浏览文件 @ 0f36b018
......@@ -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 */
fs/cifs/cifsglob.h
浏览文件 @ 0f36b018
......@@ -233,6 +233,8 @@ struct cifsTconInfo {
atomic_t num_hardlinks;
atomic_t num_symlinks;
atomic_t num_locks;
atomic_t num_acl_get;
atomic_t num_acl_set;
#ifdef CONFIG_CIFS_STATS2
unsigned long long time_writes;
unsigned long long time_reads;
......@@ -285,6 +287,7 @@ struct cifs_search_info {
unsigned endOfSearch:1;
unsigned emptyDir:1;
unsigned unicode:1;
unsigned smallBuf:1; /* so we know which buf_release function to call */
};
struct cifsFileInfo {
......@@ -420,7 +423,12 @@ struct dir_notify_req {
#define MID_RESPONSE_RECEIVED 4
#define MID_RETRY_NEEDED 8 /* session closed while this request out */
#define MID_NO_RESP_NEEDED 0x10
#define MID_SMALL_BUFFER 0x20 /* 112 byte response buffer instead of 4K */
/* Types of response buffer returned from SendReceive2 */
#define CIFS_NO_BUFFER 0 /* Response buffer not returned */
#define CIFS_SMALL_BUFFER 1
#define CIFS_LARGE_BUFFER 2
#define CIFS_IOVEC 4 /* array of response buffers */
/*
*****************************************************************
......@@ -505,8 +513,12 @@ GLOBAL_EXTERN atomic_t tcpSesReconnectCount;
GLOBAL_EXTERN atomic_t tconInfoReconnectCount;
/* Various Debug counters to remove someday (BB) */
GLOBAL_EXTERN atomic_t bufAllocCount;
GLOBAL_EXTERN atomic_t smBufAllocCount;
GLOBAL_EXTERN atomic_t bufAllocCount; /* current number allocated */
#ifdef CONFIG_CIFS_STATS2
GLOBAL_EXTERN atomic_t totBufAllocCount; /* total allocated over all time */
GLOBAL_EXTERN atomic_t totSmBufAllocCount;
#endif
GLOBAL_EXTERN atomic_t smBufAllocCount;
GLOBAL_EXTERN atomic_t midCount;
/* Misc globals */
......
fs/cifs/cifspdu.h
浏览文件 @ 0f36b018
/*
* fs/cifs/cifspdu.h
*
* Copyright (c) International Business Machines Corp., 2002
* 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
......@@ -80,7 +80,11 @@
#define NT_TRANSACT_GET_USER_QUOTA 0x07
#define NT_TRANSACT_SET_USER_QUOTA 0x08
#define MAX_CIFS_HDR_SIZE 256 /* is future chained NTCreateXReadX bigger? */
#define MAX_CIFS_SMALL_BUFFER_SIZE 448 /* big enough for most */
/* future chained NTCreateXReadX bigger, but for time being NTCreateX biggest */
/* among the requests (NTCreateX response is bigger with wct of 34) */
#define MAX_CIFS_HDR_SIZE 0x58 /* 4 len + 32 hdr + (2*24 wct) + 2 bct + 2 pad */
#define CIFS_SMALL_PATH 120 /* allows for (448-88)/3 */
/* internal cifs vfs structures */
/*****************************************************************
......@@ -524,7 +528,7 @@ typedef union smb_com_session_setup_andx {
/* STRING PrimaryDomain */
/* STRING NativeOS */
/* STRING NativeLanMan */
} __attribute__((packed)) old_req; /* pre-NTLM (LANMAN2.1) request format */
} __attribute__((packed)) old_req; /* pre-NTLM (LANMAN2.1) req format */
struct { /* default (NTLM) response format */
struct smb_hdr hdr; /* wct = 3 */
......@@ -536,7 +540,7 @@ typedef union smb_com_session_setup_andx {
unsigned char NativeOS[1]; /* followed by */
/* unsigned char * NativeLanMan; */
/* unsigned char * PrimaryDomain; */
} __attribute__((packed)) old_resp; /* pre-NTLM (LANMAN2.1) response format */
} __attribute__((packed)) old_resp; /* pre-NTLM (LANMAN2.1) response */
} __attribute__((packed)) SESSION_SETUP_ANDX;
#define CIFS_NETWORK_OPSYS "CIFS VFS Client for Linux"
......@@ -1003,10 +1007,49 @@ typedef struct smb_com_setattr_rsp {
/* empty wct response to setattr */
/***************************************************/
/* NT Transact structure defintions follow */
/* Currently only ioctl and notify are implemented */
/***************************************************/
/*******************************************************/
/* NT Transact structure defintions follow */
/* Currently only ioctl, acl (get security descriptor) */
/* and notify are implemented */
/*******************************************************/
typedef struct smb_com_ntransact_req {
struct smb_hdr hdr; /* wct >= 19 */
__u8 MaxSetupCount;
__u16 Reserved;
__le32 TotalParameterCount;
__le32 TotalDataCount;
__le32 MaxParameterCount;
__le32 MaxDataCount;
__le32 ParameterCount;
__le32 ParameterOffset;
__le32 DataCount;
__le32 DataOffset;
__u8 SetupCount; /* four setup words follow subcommand */
/* SNIA spec incorrectly included spurious pad here */
__le16 SubCommand; /* 2 = IOCTL/FSCTL */
/* SetupCount words follow then */
__le16 ByteCount;
__u8 Pad[3];
__u8 Parms[0];
} __attribute__((packed)) NTRANSACT_REQ;
typedef struct smb_com_ntransact_rsp {
struct smb_hdr hdr; /* wct = 18 */
__u8 Reserved[3];
__le32 TotalParameterCount;
__le32 TotalDataCount;
__le32 ParameterCount;
__le32 ParameterOffset;
__le32 ParameterDisplacement;
__le32 DataCount;
__le32 DataOffset;
__le32 DataDisplacement;
__u8 SetupCount; /* 0 */
__u16 ByteCount;
/* __u8 Pad[3]; */
/* parms and data follow */
} __attribute__((packed)) NTRANSACT_RSP;
typedef struct smb_com_transaction_ioctl_req {
struct smb_hdr hdr; /* wct = 23 */
__u8 MaxSetupCount;
......@@ -1021,11 +1064,11 @@ typedef struct smb_com_transaction_ioctl_req {
__le32 DataOffset;
__u8 SetupCount; /* four setup words follow subcommand */
/* SNIA spec incorrectly included spurious pad here */
__le16 SubCommand;/* 2 = IOCTL/FSCTL */
__le16 SubCommand; /* 2 = IOCTL/FSCTL */
__le32 FunctionCode;
__u16 Fid;
__u8 IsFsctl; /* 1 = File System Control, 0 = device control (IOCTL)*/
__u8 IsRootFlag; /* 1 = apply command to root of share (must be DFS share)*/
__u8 IsFsctl; /* 1 = File System Control 0 = device control (IOCTL) */
__u8 IsRootFlag; /* 1 = apply command to root of share (must be DFS) */
__le16 ByteCount;
__u8 Pad[3];
__u8 Data[1];
......@@ -1045,9 +1088,35 @@ typedef struct smb_com_transaction_ioctl_rsp {
__u8 SetupCount; /* 1 */
__le16 ReturnedDataLen;
__u16 ByteCount;
__u8 Pad[3];
} __attribute__((packed)) TRANSACT_IOCTL_RSP;
#define CIFS_ACL_OWNER 1
#define CIFS_ACL_GROUP 2
#define CIFS_ACL_DACL 4
#define CIFS_ACL_SACL 8
typedef struct smb_com_transaction_qsec_req {
struct smb_hdr hdr; /* wct = 19 */
__u8 MaxSetupCount;
__u16 Reserved;
__le32 TotalParameterCount;
__le32 TotalDataCount;
__le32 MaxParameterCount;
__le32 MaxDataCount;
__le32 ParameterCount;
__le32 ParameterOffset;
__le32 DataCount;
__le32 DataOffset;
__u8 SetupCount; /* no setup words follow subcommand */
/* SNIA spec incorrectly included spurious pad here */
__le16 SubCommand; /* 6 = QUERY_SECURITY_DESC */
__le16 ByteCount; /* bcc = 3 + 8 */
__u8 Pad[3];
__u16 Fid;
__u16 Reserved2;
__le32 AclFlags;
} __attribute__((packed)) QUERY_SEC_DESC_REQ;
typedef struct smb_com_transaction_change_notify_req {
struct smb_hdr hdr; /* wct = 23 */
__u8 MaxSetupCount;
......@@ -1068,10 +1137,12 @@ typedef struct smb_com_transaction_change_notify_req {
__u8 WatchTree; /* 1 = Monitor subdirectories */
__u8 Reserved2;
__le16 ByteCount;
/* __u8 Pad[3];*/
/* __u8 Pad[3];*/
/* __u8 Data[1];*/
} __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_REQ;
/* BB eventually change to use generic ntransact rsp struct
and validation routine */
typedef struct smb_com_transaction_change_notify_rsp {
struct smb_hdr hdr; /* wct = 18 */
__u8 Reserved[3];
......
fs/cifs/cifsproto.h
浏览文件 @ 0f36b018
......@@ -48,8 +48,8 @@ extern int SendReceive(const unsigned int /* xid */ , struct cifsSesInfo *,
struct smb_hdr * /* out */ ,
int * /* bytes returned */ , const int long_op);
extern int SendReceive2(const unsigned int /* xid */ , struct cifsSesInfo *,
struct kvec *, int /* nvec */,
int * /* bytes returned */ , const int long_op);
struct kvec *, int /* nvec to send */,
int * /* type of buf returned */ , const int long_op);
extern int checkSMBhdr(struct smb_hdr *smb, __u16 mid);
extern int checkSMB(struct smb_hdr *smb, __u16 mid, int length);
extern int is_valid_oplock_break(struct smb_hdr *smb);
......@@ -93,11 +93,12 @@ extern int CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
const struct nls_table *);
extern int CIFSFindFirst(const int xid, struct cifsTconInfo *tcon,
const char *searchName, const struct nls_table *nls_codepage,
__u16 *searchHandle, struct cifs_search_info * psrch_inf, int map, const char dirsep);
const char *searchName, const struct nls_table *nls_codepage,
__u16 *searchHandle, struct cifs_search_info * psrch_inf,
int map, const char dirsep);
extern int CIFSFindNext(const int xid, struct cifsTconInfo *tcon,
__u16 searchHandle, struct cifs_search_info * psrch_inf);
__u16 searchHandle, struct cifs_search_info * psrch_inf);
extern int CIFSFindClose(const int, struct cifsTconInfo *tcon,
const __u16 search_handle);
......@@ -230,19 +231,18 @@ extern int CIFSSMBClose(const int xid, struct cifsTconInfo *tcon,
const int smb_file_id);
extern int CIFSSMBRead(const int xid, struct cifsTconInfo *tcon,
const int netfid, unsigned int count,
const __u64 lseek, unsigned int *nbytes, char **buf);
const int netfid, unsigned int count,
const __u64 lseek, unsigned int *nbytes, char **buf,
int * return_buf_type);
extern int CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon,
const int netfid, const unsigned int count,
const __u64 lseek, unsigned int *nbytes,
const char *buf, const char __user *ubuf,
const int long_op);
#ifdef CONFIG_CIFS_EXPERIMENTAL
extern int CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
const int netfid, const unsigned int count,
const __u64 offset, unsigned int *nbytes,
struct kvec *iov, const int nvec, const int long_op);
#endif /* CONFIG_CIFS_EXPERIMENTAL */
extern int CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon,
const unsigned char *searchName, __u64 * inode_number,
const struct nls_table *nls_codepage,
......@@ -269,6 +269,8 @@ extern void tconInfoFree(struct cifsTconInfo *);
extern int cifs_reconnect(struct TCP_Server_Info *server);
extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *,__u32 *);
extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
__u32 *);
extern int cifs_verify_signature(struct smb_hdr *, const char * mac_key,
__u32 expected_sequence_number);
extern int cifs_calculate_mac_key(char * key,const char * rn,const char * pass);
......@@ -297,6 +299,9 @@ extern int CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon,
const char *fileName, const char * ea_name,
const void * ea_value, const __u16 ea_value_len,
const struct nls_table *nls_codepage, int remap_special_chars);
extern int CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon,
__u16 fid, char *acl_inf, const int buflen,
const int acl_type /* ACCESS vs. DEFAULT */);
extern int CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon,
const unsigned char *searchName,
char *acl_inf, const int buflen,const int acl_type,
......
fs/cifs/cifssmb.c
浏览文件 @ 0f36b018
......@@ -37,6 +37,7 @@
#include "cifsproto.h"
#include "cifs_unicode.h"
#include "cifs_debug.h"
#include "cifsacl.h"
#ifdef CONFIG_CIFS_POSIX
static struct {
......@@ -372,8 +373,10 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc == 0) {
server->secMode = pSMBr->SecurityMode;
server->secType = NTLM; /* BB override default for
server->secMode = pSMBr->SecurityMode;
if((server->secMode & SECMODE_USER) == 0)
cFYI(1,("share mode security"));
server->secType = NTLM; /* BB override default for
NTLMv2 or kerberos v5 */
/* one byte - no need to convert this or EncryptionKeyLen
from little endian */
......@@ -383,7 +386,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
min(le32_to_cpu(pSMBr->MaxBufferSize),
(__u32) CIFSMaxBufSize + MAX_CIFS_HDR_SIZE);
server->maxRw = le32_to_cpu(pSMBr->MaxRawSize);
cFYI(0, ("Max buf = %d ", ses->server->maxBuf));
cFYI(0, ("Max buf = %d", ses->server->maxBuf));
GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey);
server->capabilities = le32_to_cpu(pSMBr->Capabilities);
server->timeZone = le16_to_cpu(pSMBr->ServerTimeZone);
......@@ -411,8 +414,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
(server->server_GUID,
pSMBr->u.extended_response.
GUID, 16) != 0) {
cFYI(1,
("UID of server does not match previous connection to same ip address"));
cFYI(1, ("server UID changed"));
memcpy(server->
server_GUID,
pSMBr->u.
......@@ -958,21 +960,19 @@ CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon,
return rc;
}
/* If no buffer passed in, then caller wants to do the copy
as in the case of readpages so the SMB buffer must be
freed by the caller */
int
CIFSSMBRead(const int xid, struct cifsTconInfo *tcon,
const int netfid, const unsigned int count,
const __u64 lseek, unsigned int *nbytes, char **buf)
const int netfid, const unsigned int count,
const __u64 lseek, unsigned int *nbytes, char **buf,
int * pbuf_type)
{
int rc = -EACCES;
READ_REQ *pSMB = NULL;
READ_RSP *pSMBr = NULL;
char *pReadData = NULL;
int bytes_returned;
int wct;
int resp_buf_type = 0;
struct kvec iov[1];
cFYI(1,("Reading %d bytes on fid %d",count,netfid));
if(tcon->ses->capabilities & CAP_LARGE_FILES)
......@@ -981,8 +981,7 @@ CIFSSMBRead(const int xid, struct cifsTconInfo *tcon,
wct = 10; /* old style read */
*nbytes = 0;
rc = smb_init(SMB_COM_READ_ANDX, wct, tcon, (void **) &pSMB,
(void **) &pSMBr);
rc = small_smb_init(SMB_COM_READ_ANDX, wct, tcon, (void **) &pSMB);
if (rc)
return rc;
......@@ -990,13 +989,13 @@ CIFSSMBRead(const int xid, struct cifsTconInfo *tcon,
if (tcon->ses->server == NULL)
return -ECONNABORTED;
pSMB->AndXCommand = 0xFF; /* none */
pSMB->AndXCommand = 0xFF; /* none */
pSMB->Fid = netfid;
pSMB->OffsetLow = cpu_to_le32(lseek & 0xFFFFFFFF);
if(wct == 12)
pSMB->OffsetHigh = cpu_to_le32(lseek >> 32);
else if((lseek >> 32) > 0) /* can not handle this big offset for old */
return -EIO;
else if((lseek >> 32) > 0) /* can not handle this big offset for old */
return -EIO;
pSMB->Remaining = 0;
pSMB->MaxCount = cpu_to_le16(count & 0xFFFF);
......@@ -1005,14 +1004,18 @@ CIFSSMBRead(const int xid, struct cifsTconInfo *tcon,
pSMB->ByteCount = 0; /* no need to do le conversion since 0 */
else {
/* old style read */
struct smb_com_readx_req * pSMBW =
struct smb_com_readx_req * pSMBW =
(struct smb_com_readx_req *)pSMB;
pSMBW->ByteCount = 0;
pSMBW->ByteCount = 0;
}
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
iov[0].iov_base = (char *)pSMB;
iov[0].iov_len = pSMB->hdr.smb_buf_length + 4;
rc = SendReceive2(xid, tcon->ses, iov,
1 /* num iovecs */,
&resp_buf_type, 0);
cifs_stats_inc(&tcon->num_reads);
pSMBr = (READ_RSP *)iov[0].iov_base;
if (rc) {
cERROR(1, ("Send error in read = %d", rc));
} else {
......@@ -1022,33 +1025,43 @@ CIFSSMBRead(const int xid, struct cifsTconInfo *tcon,
*nbytes = data_length;
/*check that DataLength would not go beyond end of SMB */
if ((data_length > CIFSMaxBufSize)
if ((data_length > CIFSMaxBufSize)
|| (data_length > count)) {
cFYI(1,("bad length %d for count %d",data_length,count));
rc = -EIO;
*nbytes = 0;
} else {
pReadData =
(char *) (&pSMBr->hdr.Protocol) +
pReadData = (char *) (&pSMBr->hdr.Protocol) +
le16_to_cpu(pSMBr->DataOffset);
/* if(rc = copy_to_user(buf, pReadData, data_length)) {
cERROR(1,("Faulting on read rc = %d",rc));
rc = -EFAULT;
}*/ /* can not use copy_to_user when using page cache*/
/* if(rc = copy_to_user(buf, pReadData, data_length)) {
cERROR(1,("Faulting on read rc = %d",rc));
rc = -EFAULT;
}*/ /* can not use copy_to_user when using page cache*/
if(*buf)
memcpy(*buf,pReadData,data_length);
memcpy(*buf,pReadData,data_length);
}
}
if(*buf)
cifs_buf_release(pSMB);
else
*buf = (char *)pSMB;
/* Note: On -EAGAIN error only caller can retry on handle based calls
cifs_small_buf_release(pSMB);
if(*buf) {
if(resp_buf_type == CIFS_SMALL_BUFFER)
cifs_small_buf_release(iov[0].iov_base);
else if(resp_buf_type == CIFS_LARGE_BUFFER)
cifs_buf_release(iov[0].iov_base);
} else /* return buffer to caller to free */ /* BB FIXME how do we tell caller if it is not a large buffer */ {
*buf = iov[0].iov_base;
if(resp_buf_type == CIFS_SMALL_BUFFER)
*pbuf_type = CIFS_SMALL_BUFFER;
else if(resp_buf_type == CIFS_LARGE_BUFFER)
*pbuf_type = CIFS_LARGE_BUFFER;
}
/* Note: On -EAGAIN error only caller can retry on handle based calls
since file handle passed in no longer valid */
return rc;
}
int
CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon,
const int netfid, const unsigned int count,
......@@ -1155,7 +1168,6 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon,
return rc;
}
#ifdef CONFIG_CIFS_EXPERIMENTAL
int
CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
const int netfid, const unsigned int count,
......@@ -1164,10 +1176,10 @@ CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
{
int rc = -EACCES;
WRITE_REQ *pSMB = NULL;
int bytes_returned, wct;
int wct;
int smb_hdr_len;
int resp_buf_type = 0;
/* BB removeme BB */
cFYI(1,("write2 at %lld %d bytes", (long long)offset, count));
if(tcon->ses->capabilities & CAP_LARGE_FILES)
......@@ -1210,22 +1222,34 @@ CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
pSMBW->ByteCount = cpu_to_le16(count + 5);
}
iov[0].iov_base = pSMB;
iov[0].iov_len = smb_hdr_len + 4;
if(wct == 14)
iov[0].iov_len = smb_hdr_len + 4;
else /* wct == 12 pad bigger by four bytes */
iov[0].iov_len = smb_hdr_len + 8;
rc = SendReceive2(xid, tcon->ses, iov, n_vec + 1, &bytes_returned,
rc = SendReceive2(xid, tcon->ses, iov, n_vec + 1, &resp_buf_type,
long_op);
cifs_stats_inc(&tcon->num_writes);
if (rc) {
cFYI(1, ("Send error Write2 = %d", rc));
*nbytes = 0;
} else if(resp_buf_type == 0) {
/* presumably this can not happen, but best to be safe */
rc = -EIO;
*nbytes = 0;
} else {
WRITE_RSP * pSMBr = (WRITE_RSP *)pSMB;
WRITE_RSP * pSMBr = (WRITE_RSP *)iov[0].iov_base;
*nbytes = le16_to_cpu(pSMBr->CountHigh);
*nbytes = (*nbytes) << 16;
*nbytes += le16_to_cpu(pSMBr->Count);
}
}
cifs_small_buf_release(pSMB);
if(resp_buf_type == CIFS_SMALL_BUFFER)
cifs_small_buf_release(iov[0].iov_base);
else if(resp_buf_type == CIFS_LARGE_BUFFER)
cifs_buf_release(iov[0].iov_base);
/* Note: On -EAGAIN error only caller can retry on handle based calls
since file handle passed in no longer valid */
......@@ -1234,8 +1258,6 @@ CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
}
#endif /* CIFS_EXPERIMENTAL */
int
CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
const __u16 smb_file_id, const __u64 len,
......@@ -1906,6 +1928,90 @@ CIFSSMBUnixQuerySymLink(const int xid, struct cifsTconInfo *tcon,
return rc;
}
/* Initialize NT TRANSACT SMB into small smb request buffer.
This assumes that all NT TRANSACTS that we init here have
total parm and data under about 400 bytes (to fit in small cifs
buffer size), which is the case so far, it easily fits. NB:
Setup words themselves and ByteCount
MaxSetupCount (size of returned setup area) and
MaxParameterCount (returned parms size) must be set by caller */
static int
smb_init_ntransact(const __u16 sub_command, const int setup_count,
const int parm_len, struct cifsTconInfo *tcon,
void ** ret_buf)
{
int rc;
__u32 temp_offset;
struct smb_com_ntransact_req * pSMB;
rc = small_smb_init(SMB_COM_NT_TRANSACT, 19 + setup_count, tcon,
(void **)&pSMB);
if (rc)
return rc;
*ret_buf = (void *)pSMB;
pSMB->Reserved = 0;
pSMB->TotalParameterCount = cpu_to_le32(parm_len);
pSMB->TotalDataCount = 0;
pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf -
MAX_CIFS_HDR_SIZE) & 0xFFFFFF00);
pSMB->ParameterCount = pSMB->TotalParameterCount;
pSMB->DataCount = pSMB->TotalDataCount;
temp_offset = offsetof(struct smb_com_ntransact_req, Parms) +
(setup_count * 2) - 4 /* for rfc1001 length itself */;
pSMB->ParameterOffset = cpu_to_le32(temp_offset);
pSMB->DataOffset = cpu_to_le32(temp_offset + parm_len);
pSMB->SetupCount = setup_count; /* no need to le convert byte fields */
pSMB->SubCommand = cpu_to_le16(sub_command);
return 0;
}
static int
validate_ntransact(char * buf, char ** ppparm, char ** ppdata,
int * pdatalen, int * pparmlen)
{
char * end_of_smb;
__u32 data_count, data_offset, parm_count, parm_offset;
struct smb_com_ntransact_rsp * pSMBr;
if(buf == NULL)
return -EINVAL;
pSMBr = (struct smb_com_ntransact_rsp *)buf;
/* ByteCount was converted from little endian in SendReceive */
end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount +
(char *)&pSMBr->ByteCount;
data_offset = le32_to_cpu(pSMBr->DataOffset);
data_count = le32_to_cpu(pSMBr->DataCount);
parm_offset = le32_to_cpu(pSMBr->ParameterOffset);
parm_count = le32_to_cpu(pSMBr->ParameterCount);
*ppparm = (char *)&pSMBr->hdr.Protocol + parm_offset;
*ppdata = (char *)&pSMBr->hdr.Protocol + data_offset;
/* should we also check that parm and data areas do not overlap? */
if(*ppparm > end_of_smb) {
cFYI(1,("parms start after end of smb"));
return -EINVAL;
} else if(parm_count + *ppparm > end_of_smb) {
cFYI(1,("parm end after end of smb"));
return -EINVAL;
} else if(*ppdata > end_of_smb) {
cFYI(1,("data starts after end of smb"));
return -EINVAL;
} else if(data_count + *ppdata > end_of_smb) {
cFYI(1,("data %p + count %d (%p) ends after end of smb %p start %p",
*ppdata, data_count, (data_count + *ppdata), end_of_smb, pSMBr)); /* BB FIXME */
return -EINVAL;
} else if(parm_count + data_count > pSMBr->ByteCount) {
cFYI(1,("parm count and data count larger than SMB"));
return -EINVAL;
}
return 0;
}
int
CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon,
const unsigned char *searchName,
......@@ -1928,7 +2034,8 @@ CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon,
pSMB->TotalDataCount = 0;
pSMB->MaxParameterCount = cpu_to_le32(2);
/* BB find exact data count max from sess structure BB */
pSMB->MaxDataCount = cpu_to_le32(4000);
pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf -
MAX_CIFS_HDR_SIZE) & 0xFFFFFF00);
pSMB->MaxSetupCount = 4;
pSMB->Reserved = 0;
pSMB->ParameterOffset = 0;
......@@ -1955,7 +2062,9 @@ CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon,
rc = -EIO; /* bad smb */
else {
if(data_count && (data_count < 2048)) {
char * end_of_smb = pSMBr->ByteCount + (char *)&pSMBr->ByteCount;
char * end_of_smb = 2 /* sizeof byte count */ +
pSMBr->ByteCount +
(char *)&pSMBr->ByteCount;
struct reparse_data * reparse_buf = (struct reparse_data *)
((char *)&pSMBr->hdr.Protocol + data_offset);
......@@ -2199,6 +2308,7 @@ CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon,
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
cifs_stats_inc(&tcon->num_acl_get);
if (rc) {
cFYI(1, ("Send error in Query POSIX ACL = %d", rc));
} else {
......@@ -2386,6 +2496,92 @@ CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon,
#endif /* CONFIG_POSIX */
/* security id for everyone */
const struct cifs_sid sid_everyone = {1, 1, {0, 0, 0, 0, 0, 0}, {0, 0, 0, 0}};
/* group users */
const struct cifs_sid sid_user = {1, 2 , {0, 0, 0, 0, 0, 5}, {32, 545, 0, 0}};
/* Convert CIFS ACL to POSIX form */
static int parse_sec_desc(struct cifs_sid * psec_desc, int acl_len)
{
return 0;
}
/* Get Security Descriptor (by handle) from remote server for a file or dir */
int
CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid,
/* BB fix up return info */ char *acl_inf, const int buflen,
const int acl_type /* ACCESS/DEFAULT not sure implication */)
{
int rc = 0;
int buf_type = 0;
QUERY_SEC_DESC_REQ * pSMB;
struct kvec iov[1];
cFYI(1, ("GetCifsACL"));
rc = smb_init_ntransact(NT_TRANSACT_QUERY_SECURITY_DESC, 0,
8 /* parm len */, tcon, (void **) &pSMB);
if (rc)
return rc;
pSMB->MaxParameterCount = cpu_to_le32(4);
/* BB TEST with big acls that might need to be e.g. larger than 16K */
pSMB->MaxSetupCount = 0;
pSMB->Fid = fid; /* file handle always le */
pSMB->AclFlags = cpu_to_le32(CIFS_ACL_OWNER | CIFS_ACL_GROUP |
CIFS_ACL_DACL);
pSMB->ByteCount = cpu_to_le16(11); /* 3 bytes pad + 8 bytes parm */
pSMB->hdr.smb_buf_length += 11;
iov[0].iov_base = (char *)pSMB;
iov[0].iov_len = pSMB->hdr.smb_buf_length + 4;
rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovec */, &buf_type, 0);
cifs_stats_inc(&tcon->num_acl_get);
if (rc) {
cFYI(1, ("Send error in QuerySecDesc = %d", rc));
} else { /* decode response */
struct cifs_sid * psec_desc;
__le32 * parm;
int parm_len;
int data_len;
int acl_len;
struct smb_com_ntransact_rsp * pSMBr;
/* validate_nttransact */
rc = validate_ntransact(iov[0].iov_base, (char **)&parm,
(char **)&psec_desc,
&parm_len, &data_len);
if(rc)
goto qsec_out;
pSMBr = (struct smb_com_ntransact_rsp *)iov[0].iov_base;
cERROR(1,("smb %p parm %p data %p",pSMBr,parm,psec_desc)); /* BB removeme BB */
if (le32_to_cpu(pSMBr->ParameterCount) != 4) {
rc = -EIO; /* bad smb */
goto qsec_out;
}
/* BB check that data area is minimum length and as big as acl_len */
acl_len = le32_to_cpu(*(__le32 *)parm);
/* BB check if(acl_len > bufsize) */
parse_sec_desc(psec_desc, acl_len);
}
qsec_out:
if(buf_type == CIFS_SMALL_BUFFER)
cifs_small_buf_release(iov[0].iov_base);
else if(buf_type == CIFS_LARGE_BUFFER)
cifs_buf_release(iov[0].iov_base);
cifs_small_buf_release(pSMB);
return rc;
}
/* Legacy Query Path Information call for lookup to old servers such
as Win9x/WinME */
int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon,
......@@ -4284,7 +4480,7 @@ int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon,
{
int rc = 0;
struct smb_com_transaction_change_notify_req * pSMB = NULL;
struct smb_com_transaction_change_notify_rsp * pSMBr = NULL;
struct smb_com_ntransaction_change_notify_rsp * pSMBr = NULL;
struct dir_notify_req *dnotify_req;
int bytes_returned;
......@@ -4299,6 +4495,10 @@ int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon,
pSMB->MaxParameterCount = cpu_to_le32(2);
/* BB find exact data count max from sess structure BB */
pSMB->MaxDataCount = 0; /* same in little endian or be */
/* BB VERIFY verify which is correct for above BB */
pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf -
MAX_CIFS_HDR_SIZE) & 0xFFFFFF00);
pSMB->MaxSetupCount = 4;
pSMB->Reserved = 0;
pSMB->ParameterOffset = 0;
......
fs/cifs/connect.c
浏览文件 @ 0f36b018
......@@ -76,12 +76,19 @@ struct smb_vol {
unsigned setuids:1;
unsigned noperm:1;
unsigned no_psx_acl:1; /* set if posix acl support should be disabled */
unsigned cifs_acl:1;
unsigned no_xattr:1; /* set if xattr (EA) support should be disabled*/
unsigned server_ino:1; /* use inode numbers from server ie UniqueId */
unsigned direct_io:1;
unsigned remap:1; /* set to remap seven reserved chars in filenames */
unsigned posix_paths:1; /* unset to not ask for posix pathnames. */
unsigned sfu_emul:1;
unsigned krb5:1;
unsigned ntlm:1;
unsigned ntlmv2:1;
unsigned nullauth:1; /* attempt to authenticate with null user */
unsigned sign:1;
unsigned seal:1; /* encrypt */
unsigned nocase; /* request case insensitive filenames */
unsigned nobrl; /* disable sending byte range locks to srv */
unsigned int rsize;
......@@ -508,7 +515,7 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server)
/* else length ok */
reconnect = 0;
if(pdu_length > MAX_CIFS_HDR_SIZE - 4) {
if(pdu_length > MAX_CIFS_SMALL_BUFFER_SIZE - 4) {
isLargeBuf = TRUE;
memcpy(bigbuf, smallbuf, 4);
smb_buffer = bigbuf;
......@@ -777,7 +784,7 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol)
/* vol->retry default is 0 (i.e. "soft" limited retry not hard retry) */
vol->rw = TRUE;
vol->ntlm = TRUE;
/* default is always to request posix paths. */
vol->posix_paths = 1;
......@@ -903,6 +910,39 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol)
printk(KERN_WARNING "CIFS: ip address too long\n");
return 1;
}
} else if (strnicmp(data, "sec", 3) == 0) {
if (!value || !*value) {
cERROR(1,("no security value specified"));
continue;
} else if (strnicmp(value, "krb5i", 5) == 0) {
vol->sign = 1;
vol->krb5 = 1;
} else if (strnicmp(value, "krb5p", 5) == 0) {
/* vol->seal = 1;
vol->krb5 = 1; */
cERROR(1,("Krb5 cifs privacy not supported"));
return 1;
} else if (strnicmp(value, "krb5", 4) == 0) {
vol->krb5 = 1;
} else if (strnicmp(value, "ntlmv2i", 7) == 0) {
vol->ntlmv2 = 1;
vol->sign = 1;
} else if (strnicmp(value, "ntlmv2", 6) == 0) {
vol->ntlmv2 = 1;
} else if (strnicmp(value, "ntlmi", 5) == 0) {
vol->ntlm = 1;
vol->sign = 1;
} else if (strnicmp(value, "ntlm", 4) == 0) {
/* ntlm is default so can be turned off too */
vol->ntlm = 1;
} else if (strnicmp(value, "nontlm", 6) == 0) {
vol->ntlm = 0;
} else if (strnicmp(value, "none", 4) == 0) {
vol->nullauth = 1;
} else {
cERROR(1,("bad security option: %s", value));
return 1;
}
} else if ((strnicmp(data, "unc", 3) == 0)
|| (strnicmp(data, "target", 6) == 0)
|| (strnicmp(data, "path", 4) == 0)) {
......@@ -1120,6 +1160,10 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol)
vol->server_ino = 1;
} else if (strnicmp(data, "noserverino",9) == 0) {
vol->server_ino = 0;
} else if (strnicmp(data, "cifsacl",7) == 0) {
vol->cifs_acl = 1;
} else if (strnicmp(data, "nocifsacl", 9) == 0) {
vol->cifs_acl = 0;
} else if (strnicmp(data, "acl",3) == 0) {
vol->no_psx_acl = 0;
} else if (strnicmp(data, "noacl",5) == 0) {
......@@ -1546,7 +1590,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
cFYI(1, ("Username: %s ", volume_info.username));
} else {
cifserror("No username specified ");
cifserror("No username specified");
/* In userspace mount helper we can get user name from alternate
locations such as env variables and files on disk */
kfree(volume_info.UNC);
......@@ -1587,7 +1631,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
return -EINVAL;
} else /* which servers DFS root would we conect to */ {
cERROR(1,
("CIFS mount error: No UNC path (e.g. -o unc=//192.168.1.100/public) specified "));
("CIFS mount error: No UNC path (e.g. -o unc=//192.168.1.100/public) specified"));
kfree(volume_info.UNC);
kfree(volume_info.password);
FreeXid(xid);
......@@ -1626,7 +1670,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
if (srvTcp) {
cFYI(1, ("Existing tcp session with server found "));
cFYI(1, ("Existing tcp session with server found"));
} else { /* create socket */
if(volume_info.port)
sin_server.sin_port = htons(volume_info.port);
......@@ -1689,11 +1733,11 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
if (existingCifsSes) {
pSesInfo = existingCifsSes;
cFYI(1, ("Existing smb sess found "));
cFYI(1, ("Existing smb sess found"));
kfree(volume_info.password);
/* volume_info.UNC freed at end of function */
} else if (!rc) {
cFYI(1, ("Existing smb sess not found "));
cFYI(1, ("Existing smb sess not found"));
pSesInfo = sesInfoAlloc();
if (pSesInfo == NULL)
rc = -ENOMEM;
......@@ -1751,7 +1795,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
cifs_sb->mnt_gid = volume_info.linux_gid;
cifs_sb->mnt_file_mode = volume_info.file_mode;
cifs_sb->mnt_dir_mode = volume_info.dir_mode;
cFYI(1,("file mode: 0x%x dir mode: 0x%x",cifs_sb->mnt_file_mode,cifs_sb->mnt_dir_mode));
cFYI(1,("file mode: 0x%x dir mode: 0x%x",
cifs_sb->mnt_file_mode,cifs_sb->mnt_dir_mode));
if(volume_info.noperm)
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_PERM;
......@@ -1767,6 +1812,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_UNX_EMUL;
if(volume_info.nobrl)
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_BRL;
if(volume_info.cifs_acl)
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_CIFS_ACL;
if(volume_info.direct_io) {
cFYI(1,("mounting share using direct i/o"));
......@@ -1777,7 +1824,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
find_unc(sin_server.sin_addr.s_addr, volume_info.UNC,
volume_info.username);
if (tcon) {
cFYI(1, ("Found match on UNC path "));
cFYI(1, ("Found match on UNC path"));
/* we can have only one retry value for a connection
to a share so for resources mounted more than once
to the same server share the last value passed in
......@@ -1926,7 +1973,7 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses,
__u32 capabilities;
__u16 count;
cFYI(1, ("In sesssetup "));
cFYI(1, ("In sesssetup"));
if(ses == NULL)
return -EINVAL;
user = ses->userName;
......@@ -3202,9 +3249,26 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
pSMB->AndXCommand = 0xFF;
pSMB->Flags = cpu_to_le16(TCON_EXTENDED_SECINFO);
pSMB->PasswordLength = cpu_to_le16(1); /* minimum */
bcc_ptr = &pSMB->Password[0];
bcc_ptr++; /* skip password */
if((ses->server->secMode) & SECMODE_USER) {
pSMB->PasswordLength = cpu_to_le16(1); /* minimum */
bcc_ptr++; /* skip password */
} else {
pSMB->PasswordLength = cpu_to_le16(CIFS_SESSION_KEY_SIZE);
/* BB FIXME add code to fail this if NTLMv2 or Kerberos
specified as required (when that support is added to
the vfs in the future) as only NTLM or the much
weaker LANMAN (which we do not send) is accepted
by Samba (not sure whether other servers allow
NTLMv2 password here) */
SMBNTencrypt(ses->password,
ses->server->cryptKey,
bcc_ptr);
bcc_ptr += CIFS_SESSION_KEY_SIZE;
*bcc_ptr = 0;
bcc_ptr++; /* align */
}
if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
......@@ -3222,7 +3286,6 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
bcc_ptr += 2 * length; /* convert num of 16 bit words to bytes */
bcc_ptr += 2; /* skip trailing null */
} else { /* ASCII */
strcpy(bcc_ptr, tree);
bcc_ptr += strlen(tree) + 1;
}
......
fs/cifs/dir.c
浏览文件 @ 0f36b018
......@@ -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);
......
fs/cifs/file.c
浏览文件 @ 0f36b018
......@@ -553,13 +553,13 @@ int cifs_closedir(struct inode *inode, struct file *file)
}
ptmp = pCFileStruct->srch_inf.ntwrk_buf_start;
if (ptmp) {
/* BB removeme BB */ cFYI(1, ("freeing smb buf in srch struct in closedir"));
cFYI(1, ("closedir free smb buf in srch struct"));
pCFileStruct->srch_inf.ntwrk_buf_start = NULL;
cifs_buf_release(ptmp);
}
ptmp = pCFileStruct->search_resume_name;
if (ptmp) {
/* BB removeme BB */ cFYI(1, ("freeing resume name in closedir"));
cFYI(1, ("closedir free resume name"));
pCFileStruct->search_resume_name = NULL;
kfree(ptmp);
}
......@@ -868,10 +868,9 @@ static ssize_t cifs_write(struct file *file, const char *write_data,
if (rc != 0)
break;
}
#ifdef CONFIG_CIFS_EXPERIMENTAL
/* BB FIXME We can not sign across two buffers yet */
if((experimEnabled) && ((pTcon->ses->server->secMode &
(SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) == 0)) {
if((pTcon->ses->server->secMode &
(SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) == 0) {
struct kvec iov[2];
unsigned int len;
......@@ -887,7 +886,6 @@ static ssize_t cifs_write(struct file *file, const char *write_data,
iov, 1, long_op);
} else
/* BB FIXME fixup indentation of line below */
#endif
rc = CIFSSMBWrite(xid, pTcon,
open_file->netfid,
min_t(const int, cifs_sb->wsize,
......@@ -1024,7 +1022,6 @@ static int cifs_partialpagewrite(struct page *page, unsigned from, unsigned to)
return rc;
}
#ifdef CONFIG_CIFS_EXPERIMENTAL
static int cifs_writepages(struct address_space *mapping,
struct writeback_control *wbc)
{
......@@ -1227,7 +1224,6 @@ static int cifs_writepages(struct address_space *mapping,
return rc;
}
#endif
static int cifs_writepage(struct page* page, struct writeback_control *wbc)
{
......@@ -1426,6 +1422,7 @@ ssize_t cifs_user_read(struct file *file, char __user *read_data,
rc = -EAGAIN;
smb_read_data = NULL;
while (rc == -EAGAIN) {
int buf_type = CIFS_NO_BUFFER;
if ((open_file->invalidHandle) &&
(!open_file->closePend)) {
rc = cifs_reopen_file(file->f_dentry->d_inode,
......@@ -1434,20 +1431,22 @@ ssize_t cifs_user_read(struct file *file, char __user *read_data,
break;
}
rc = CIFSSMBRead(xid, pTcon,
open_file->netfid,
current_read_size, *poffset,
&bytes_read, &smb_read_data);
open_file->netfid,
current_read_size, *poffset,
&bytes_read, &smb_read_data,
&buf_type);
pSMBr = (struct smb_com_read_rsp *)smb_read_data;
if (copy_to_user(current_offset,
smb_read_data + 4 /* RFC1001 hdr */
+ le16_to_cpu(pSMBr->DataOffset),
bytes_read)) {
rc = -EFAULT;
FreeXid(xid);
return rc;
}
}
if (smb_read_data) {
cifs_buf_release(smb_read_data);
if(buf_type == CIFS_SMALL_BUFFER)
cifs_small_buf_release(smb_read_data);
else if(buf_type == CIFS_LARGE_BUFFER)
cifs_buf_release(smb_read_data);
smb_read_data = NULL;
}
}
......@@ -1480,6 +1479,7 @@ static ssize_t cifs_read(struct file *file, char *read_data, size_t read_size,
int xid;
char *current_offset;
struct cifsFileInfo *open_file;
int buf_type = CIFS_NO_BUFFER;
xid = GetXid();
cifs_sb = CIFS_SB(file->f_dentry->d_sb);
......@@ -1516,9 +1516,10 @@ static ssize_t cifs_read(struct file *file, char *read_data, size_t read_size,
break;
}
rc = CIFSSMBRead(xid, pTcon,
open_file->netfid,
current_read_size, *poffset,
&bytes_read, &current_offset);
open_file->netfid,
current_read_size, *poffset,
&bytes_read, &current_offset,
&buf_type);
}
if (rc || (bytes_read == 0)) {
if (total_read) {
......@@ -1616,6 +1617,7 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
struct smb_com_read_rsp *pSMBr;
struct pagevec lru_pvec;
struct cifsFileInfo *open_file;
int buf_type = CIFS_NO_BUFFER;
xid = GetXid();
if (file->private_data == NULL) {
......@@ -1672,14 +1674,17 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
}
rc = CIFSSMBRead(xid, pTcon,
open_file->netfid,
read_size, offset,
&bytes_read, &smb_read_data);
open_file->netfid,
read_size, offset,
&bytes_read, &smb_read_data,
&buf_type);
/* BB more RC checks ? */
if (rc== -EAGAIN) {
if (smb_read_data) {
cifs_buf_release(smb_read_data);
if(buf_type == CIFS_SMALL_BUFFER)
cifs_small_buf_release(smb_read_data);
else if(buf_type == CIFS_LARGE_BUFFER)
cifs_buf_release(smb_read_data);
smb_read_data = NULL;
}
}
......@@ -1736,7 +1741,10 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
break;
}
if (smb_read_data) {
cifs_buf_release(smb_read_data);
if(buf_type == CIFS_SMALL_BUFFER)
cifs_small_buf_release(smb_read_data);
else if(buf_type == CIFS_LARGE_BUFFER)
cifs_buf_release(smb_read_data);
smb_read_data = NULL;
}
bytes_read = 0;
......@@ -1746,7 +1754,10 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
/* need to free smb_read_data buf before exit */
if (smb_read_data) {
cifs_buf_release(smb_read_data);
if(buf_type == CIFS_SMALL_BUFFER)
cifs_small_buf_release(smb_read_data);
else if(buf_type == CIFS_LARGE_BUFFER)
cifs_buf_release(smb_read_data);
smb_read_data = NULL;
}
......@@ -1825,10 +1836,20 @@ int is_size_safe_to_change(struct cifsInodeInfo *cifsInode)
open_file = find_writable_file(cifsInode);
if(open_file) {
struct cifs_sb_info *cifs_sb;
/* there is not actually a write pending so let
this handle go free and allow it to
be closable if needed */
atomic_dec(&open_file->wrtPending);
cifs_sb = CIFS_SB(cifsInode->vfs_inode.i_sb);
if ( cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO ) {
/* since no page cache to corrupt on directio
we can change size safely */
return 1;
}
return 0;
} else
return 1;
......@@ -1873,9 +1894,7 @@ struct address_space_operations cifs_addr_ops = {
.readpage = cifs_readpage,
.readpages = cifs_readpages,
.writepage = cifs_writepage,
#ifdef CONFIG_CIFS_EXPERIMENTAL
.writepages = cifs_writepages,
#endif
.prepare_write = cifs_prepare_write,
.commit_write = cifs_commit_write,
.set_page_dirty = __set_page_dirty_nobuffers,
......
fs/cifs/inode.c
浏览文件 @ 0f36b018
......@@ -229,11 +229,12 @@ static int decode_sfu_inode(struct inode * inode, __u64 size,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
if (rc==0) {
int buf_type = CIFS_NO_BUFFER;
/* Read header */
rc = CIFSSMBRead(xid, pTcon,
netfid,
24 /* length */, 0 /* offset */,
&bytes_read, &pbuf);
&bytes_read, &pbuf, &buf_type);
if((rc == 0) && (bytes_read >= 8)) {
if(memcmp("IntxBLK", pbuf, 8) == 0) {
cFYI(1,("Block device"));
......@@ -267,7 +268,7 @@ static int decode_sfu_inode(struct inode * inode, __u64 size,
} else {
inode->i_mode |= S_IFREG; /* then it is a file */
rc = -EOPNOTSUPP; /* or some unknown SFU type */
}
}
CIFSSMBClose(xid, pTcon, netfid);
}
return rc;
......@@ -750,8 +751,8 @@ 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 &
......
fs/cifs/misc.c
浏览文件 @ 0f36b018
/*
* 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
......@@ -161,6 +161,9 @@ cifs_buf_get(void)
if (ret_buf) {
memset(ret_buf, 0, sizeof(struct smb_hdr) + 3);
atomic_inc(&bufAllocCount);
#ifdef CONFIG_CIFS_STATS2
atomic_inc(&totBufAllocCount);
#endif /* CONFIG_CIFS_STATS2 */
}
return ret_buf;
......@@ -195,6 +198,10 @@ cifs_small_buf_get(void)
/* No need to clear memory here, cleared in header assemble */
/* memset(ret_buf, 0, sizeof(struct smb_hdr) + 27);*/
atomic_inc(&smBufAllocCount);
#ifdef CONFIG_CIFS_STATS2
atomic_inc(&totSmBufAllocCount);
#endif /* CONFIG_CIFS_STATS2 */
}
return ret_buf;
}
......@@ -292,7 +299,7 @@ header_assemble(struct smb_hdr *buffer, char smb_command /* command */ ,
struct cifsSesInfo * ses;
char *temp = (char *) buffer;
memset(temp,0,MAX_CIFS_HDR_SIZE);
memset(temp,0,256); /* bigger than MAX_CIFS_HDR_SIZE */
buffer->smb_buf_length =
(2 * word_count) + sizeof (struct smb_hdr) -
......@@ -348,12 +355,12 @@ 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;
......
fs/cifs/readdir.c
浏览文件 @ 0f36b018
......@@ -214,8 +214,7 @@ static void fill_in_inode(struct inode *tmp_inode,
tmp_inode->i_fop = &cifs_file_nobrl_ops;
else
tmp_inode->i_fop = &cifs_file_ops;
if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
tmp_inode->i_fop->lock = NULL;
tmp_inode->i_data.a_ops = &cifs_addr_ops;
if((cifs_sb->tcon) && (cifs_sb->tcon->ses) &&
(cifs_sb->tcon->ses->server->maxBuf <
......@@ -327,12 +326,18 @@ static void unix_fill_in_inode(struct inode *tmp_inode,
if (S_ISREG(tmp_inode->i_mode)) {
cFYI(1, ("File inode"));
tmp_inode->i_op = &cifs_file_inode_ops;
if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO)
tmp_inode->i_fop = &cifs_file_direct_ops;
if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) {
if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
tmp_inode->i_fop = &cifs_file_direct_nobrl_ops;
else
tmp_inode->i_fop = &cifs_file_direct_ops;
} else if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
tmp_inode->i_fop = &cifs_file_nobrl_ops;
else
tmp_inode->i_fop = &cifs_file_ops;
if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
tmp_inode->i_fop->lock = NULL;
tmp_inode->i_data.a_ops = &cifs_addr_ops;
if((cifs_sb->tcon) && (cifs_sb->tcon->ses) &&
(cifs_sb->tcon->ses->server->maxBuf <
......
fs/cifs/rfc1002pdu.h
浏览文件 @ 0f36b018
......@@ -24,11 +24,11 @@
/* NB: unlike smb/cifs packets, the RFC1002 structures are big endian */
/* RFC 1002 session packet types */
#define RFC1002_SESSION_MESASAGE 0x00
#define RFC1002_SESSION_MESSAGE 0x00
#define RFC1002_SESSION_REQUEST 0x81
#define RFC1002_POSITIVE_SESSION_RESPONSE 0x82
#define RFC1002_NEGATIVE_SESSION_RESPONSE 0x83
#define RFC1002_RETARGET_SESSION_RESPONSE 0x83
#define RFC1002_RETARGET_SESSION_RESPONSE 0x84
#define RFC1002_SESSION_KEEP_ALIVE 0x85
/* RFC 1002 flags (only one defined */
......
fs/cifs/transport.c
浏览文件 @ 0f36b018
......@@ -206,7 +206,6 @@ smb_send(struct socket *ssocket, struct smb_hdr *smb_buffer,
return rc;
}
#ifdef CONFIG_CIFS_EXPERIMENTAL
static int
smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec,
struct sockaddr *sin)
......@@ -299,7 +298,7 @@ smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec,
int
SendReceive2(const unsigned int xid, struct cifsSesInfo *ses,
struct kvec *iov, int n_vec, int *pbytes_returned,
struct kvec *iov, int n_vec, int * pRespBufType /* ret */,
const int long_op)
{
int rc = 0;
......@@ -307,6 +306,8 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses,
unsigned long timeout;
struct mid_q_entry *midQ;
struct smb_hdr *in_buf = iov[0].iov_base;
*pRespBufType = CIFS_NO_BUFFER; /* no response buf yet */
if (ses == NULL) {
cERROR(1,("Null smb session"));
......@@ -392,8 +393,7 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses,
return -ENOMEM;
}
/* BB FIXME */
/* rc = cifs_sign_smb2(iov, n_vec, ses->server, &midQ->sequence_number); */
rc = cifs_sign_smb2(iov, n_vec, ses->server, &midQ->sequence_number);
midQ->midState = MID_REQUEST_SUBMITTED;
#ifdef CONFIG_CIFS_STATS2
......@@ -489,21 +489,23 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses,
receive_len, xid));
rc = -EIO;
} else { /* rcvd frame is ok */
if (midQ->resp_buf &&
(midQ->midState == MID_RESPONSE_RECEIVED)) {
in_buf->smb_buf_length = receive_len;
/* BB verify that length would not overrun small buf */
memcpy((char *)in_buf + 4,
(char *)midQ->resp_buf + 4,
receive_len);
dump_smb(in_buf, 80);
iov[0].iov_base = (char *)midQ->resp_buf;
if(midQ->largeBuf)
*pRespBufType = CIFS_LARGE_BUFFER;
else
*pRespBufType = CIFS_SMALL_BUFFER;
iov[0].iov_len = receive_len + 4;
iov[1].iov_len = 0;
dump_smb(midQ->resp_buf, 80);
/* convert the length into a more usable form */
if((receive_len > 24) &&
(ses->server->secMode & (SECMODE_SIGN_REQUIRED |
SECMODE_SIGN_ENABLED))) {
rc = cifs_verify_signature(in_buf,
rc = cifs_verify_signature(midQ->resp_buf,
ses->server->mac_signing_key,
midQ->sequence_number+1);
if(rc) {
......@@ -512,18 +514,19 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses,
}
}
*pbytes_returned = in_buf->smb_buf_length;
/* BB special case reconnect tid and uid here? */
/* BB special case Errbadpassword and pwdexpired here */
rc = map_smb_to_linux_error(in_buf);
rc = map_smb_to_linux_error(midQ->resp_buf);
/* convert ByteCount if necessary */
if (receive_len >=
sizeof (struct smb_hdr) -
4 /* do not count RFC1001 header */ +
(2 * in_buf->WordCount) + 2 /* bcc */ )
BCC(in_buf) = le16_to_cpu(BCC_LE(in_buf));
(2 * midQ->resp_buf->WordCount) + 2 /* bcc */ )
BCC(midQ->resp_buf) =
le16_to_cpu(BCC_LE(midQ->resp_buf));
midQ->resp_buf = NULL; /* mark it so will not be freed
by DeleteMidQEntry */
} else {
rc = -EIO;
cFYI(1,("Bad MID state?"));
......@@ -549,7 +552,6 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses,
return rc;
}
#endif /* CIFS_EXPERIMENTAL */
int
SendReceive(const unsigned int xid, struct cifsSesInfo *ses,
......@@ -790,7 +792,7 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses,
BCC(out_buf) = le16_to_cpu(BCC_LE(out_buf));
} else {
rc = -EIO;
cERROR(1,("Bad MID state? "));
cERROR(1,("Bad MID state?"));
}
}
cifs_no_response_exit:
......
fs/cifs/xattr.c
浏览文件 @ 0f36b018
......@@ -254,7 +254,8 @@ ssize_t cifs_getxattr(struct dentry * direntry, const char * ea_name,
rc = CIFSSMBQueryEA(xid,pTcon,full_path,ea_name,ea_value,
buf_size, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
} else if(strncmp(ea_name,POSIX_ACL_XATTR_ACCESS,strlen(POSIX_ACL_XATTR_ACCESS)) == 0) {
} else if(strncmp(ea_name,POSIX_ACL_XATTR_ACCESS,
strlen(POSIX_ACL_XATTR_ACCESS)) == 0) {
#ifdef CONFIG_CIFS_POSIX
if(sb->s_flags & MS_POSIXACL)
rc = CIFSSMBGetPosixACL(xid, pTcon, full_path,
......@@ -262,10 +263,27 @@ ssize_t cifs_getxattr(struct dentry * direntry, const char * ea_name,
cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
/* else if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) {
__u16 fid;
int oplock = FALSE;
rc = CIFSSMBOpen(xid, pTcon, full_path,
FILE_OPEN, GENERIC_READ, 0, &fid,
&oplock, NULL, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
if(rc == 0) {
rc = CIFSSMBGetCIFSACL(xid, pTcon, fid,
ea_value, buf_size,
ACL_TYPE_ACCESS);
CIFSSMBClose(xid, pTcon, fid)
}
} */ /* BB enable after fixing up return data */
#else
cFYI(1,("query POSIX ACL not supported yet"));
#endif /* CONFIG_CIFS_POSIX */
} else if(strncmp(ea_name,POSIX_ACL_XATTR_DEFAULT,strlen(POSIX_ACL_XATTR_DEFAULT)) == 0) {
} else if(strncmp(ea_name,POSIX_ACL_XATTR_DEFAULT,
strlen(POSIX_ACL_XATTR_DEFAULT)) == 0) {
#ifdef CONFIG_CIFS_POSIX
if(sb->s_flags & MS_POSIXACL)
rc = CIFSSMBGetPosixACL(xid, pTcon, full_path,
......
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