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提交 797b9e5a 编写于 作者: L Linus Torvalds
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Merge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6 

Pull CIFS updates from Steve French:
 "This patchset is the final section of the SMB2.1 support merge for
  cifs.ko.  It also includes improvements to the cifs socket handling
  from Jeff, and also fixes a few cifs bug fixes.  It adds SMB2 support
  for file and inode operations as well as moves some existing cifs code
  to use ops server struct of protocol specific callbacks.

  Most of this code is SMB2 specific.  When enabled SMB2.1 does pass
  various functional tests including most of the connectathon test
  suite, For SMB2.1, Connectathon test 4 and some related tests fail due
  to not updating mode bits remotely (cifsacl support where mode bits
  are approximated with the cifs acl is not enable for smb2), and test8
  (symlink) support is not completed for SMB2 yet (note that we will
  likely have a "Unix Extensions" eventually, at least for Samba, so in
  the long run posix locks won't have to be emulated when mounting Linux
  to Linux, but for most NAS and for Windows mounts posix lock emulation
  will still used for SMB2 in a similar fashion as we do for cifs).

  SMB2.1 dialect is supported.  Although additional fixes to enable smb2
  (the original smb2.02) dialect and to add various optional features of
  the smb3 dialect are expected to be added in the future as testing
  progresses, currently mounting with the "vers=2.1" is supported (in
  order to mount using SMB2.1 to servers like Samba 4, and Windows 7,
  Windows 2008R2)."

* 'for-linus' of git://git.samba.org/sfrench/cifs-2.6: (82 commits)
  [CIFS] Fix indentation of fs/cifs/Kconfig entries
  [CIFS] Fix SMB2 negotiation support to select only one dialect (based on vers=)
  cifs: obtain file access during backup intent lookup (resend)
  CIFS: Fix possible freed pointer dereference in CIFS_SessSetup
  CIFS: Fix possible freed pointer dereference in SMB2_sess_setup
  CIFS: Make ops->close return void
  cifs: change DOS/NT/POSIX mapping of ERRnoresource
  cifs: remove support for deprecated "forcedirectio" and "strictcache" mount options
  cifs: remove support for CIFS_IOC_CHECKUMOUNT ioctl
  CIFS: Fix possible memory leaks in SMB2 code
  CIFS: Fix endian conversion of IndexNumber
  Trivial endian fixes
  MARK SMB2 support EXPERIMENTAL
  Update cifs version number
  cifs: add FL_CLOSE to fl_flags mask in cifs_read_flock
  cifs: Mangle string used for unc in /proc/mounts
  cifs: cleanups for cifs_mkdir_qinfo
  CIFS: Fix fast lease break after open problem
  CIFS: Add SMB2.1 lease break support
  CIFS: Fix cache coherency for read oplock case
  ...
上级 9c0ece06 1d4ab907
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Showing with 4884 addition and 1547 deletion
fs/cifs/Kconfig
浏览文件 @ 797b9e5a
......@@ -9,13 +9,14 @@ config CIFS
select CRYPTO_ARC4
select CRYPTO_ECB
select CRYPTO_DES
select CRYPTO_SHA256
help
This is the client VFS module for the Common Internet File System
(CIFS) protocol which is the successor to the Server Message Block
(SMB) protocol, the native file sharing mechanism for most early
PC operating systems. The CIFS protocol is fully supported by
file servers such as Windows 2000 (including Windows 2003, NT 4
and Windows XP) as well by Samba (which provides excellent CIFS
file servers such as Windows 2000 (including Windows 2003, Windows 2008,
NT 4 and Windows XP) as well by Samba (which provides excellent CIFS
server support for Linux and many other operating systems). Limited
support for OS/2 and Windows ME and similar servers is provided as
well.
......@@ -114,6 +115,13 @@ config CIFS_POSIX
(such as Samba 3.10 and later) which can negotiate
CIFS POSIX ACL support. If unsure, say N.
config CIFS_ACL
bool "Provide CIFS ACL support"
depends on CIFS_XATTR && KEYS
help
Allows fetching CIFS/NTFS ACL from the server. The DACL blob
is handed over to the application/caller.
config CIFS_DEBUG2
bool "Enable additional CIFS debugging routines"
depends on CIFS
......@@ -138,21 +146,6 @@ config CIFS_DFS_UPCALL
IP addresses) which is needed for implicit mounts of DFS junction
points. If unsure, say N.
config CIFS_FSCACHE
bool "Provide CIFS client caching support"
depends on CIFS=m && FSCACHE || CIFS=y && FSCACHE=y
help
Makes CIFS FS-Cache capable. Say Y here if you want your CIFS data
to be cached locally on disk through the general filesystem cache
manager. If unsure, say N.
config CIFS_ACL
bool "Provide CIFS ACL support"
depends on CIFS_XATTR && KEYS
help
Allows to fetch CIFS/NTFS ACL from the server. The DACL blob
is handed over to the application/caller.
config CIFS_NFSD_EXPORT
bool "Allow nfsd to export CIFS file system (EXPERIMENTAL)"
depends on CIFS && EXPERIMENTAL && BROKEN
......@@ -161,7 +154,7 @@ config CIFS_NFSD_EXPORT
config CIFS_SMB2
bool "SMB2 network file system support (EXPERIMENTAL)"
depends on EXPERIMENTAL && INET && BROKEN
depends on CIFS && EXPERIMENTAL && INET
select NLS
select KEYS
select FSCACHE
......@@ -178,3 +171,12 @@ config CIFS_SMB2
(compared to cifs) due to protocol improvements.
Unless you are a developer or tester, say N.
config CIFS_FSCACHE
bool "Provide CIFS client caching support"
depends on CIFS=m && FSCACHE || CIFS=y && FSCACHE=y
help
Makes CIFS FS-Cache capable. Say Y here if you want your CIFS data
to be cached locally on disk through the general filesystem cache
manager. If unsure, say N.
fs/cifs/Makefile
浏览文件 @ 797b9e5a
......@@ -17,4 +17,4 @@ cifs-$(CONFIG_CIFS_DFS_UPCALL) += dns_resolve.o cifs_dfs_ref.o
cifs-$(CONFIG_CIFS_FSCACHE) += fscache.o cache.o
cifs-$(CONFIG_CIFS_SMB2) += smb2ops.o smb2maperror.o smb2transport.o \
smb2misc.o smb2pdu.o smb2inode.o
smb2misc.o smb2pdu.o smb2inode.o smb2file.o
fs/cifs/cifsacl.c
浏览文件 @ 797b9e5a
......@@ -1222,7 +1222,7 @@ struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *cifs_sb,
if (!open_file)
return get_cifs_acl_by_path(cifs_sb, path, pacllen);
pntsd = get_cifs_acl_by_fid(cifs_sb, open_file->netfid, pacllen);
pntsd = get_cifs_acl_by_fid(cifs_sb, open_file->fid.netfid, pacllen);
cifsFileInfo_put(open_file);
return pntsd;
}
......
fs/cifs/cifsencrypt.c
浏览文件 @ 797b9e5a
......@@ -29,6 +29,7 @@
#include "ntlmssp.h"
#include <linux/ctype.h>
#include <linux/random.h>
#include <linux/highmem.h>
/*
* Calculate and return the CIFS signature based on the mac key and SMB PDU.
......@@ -37,11 +38,13 @@
* the sequence number before this function is called. Also, this function
* should be called with the server->srv_mutex held.
*/
static int cifs_calc_signature(const struct kvec *iov, int n_vec,
static int cifs_calc_signature(struct smb_rqst *rqst,
struct TCP_Server_Info *server, char *signature)
{
int i;
int rc;
struct kvec *iov = rqst->rq_iov;
int n_vec = rqst->rq_nvec;
if (iov == NULL || signature == NULL || server == NULL)
return -EINVAL;
......@@ -91,6 +94,16 @@ static int cifs_calc_signature(const struct kvec *iov, int n_vec,
}
}
/* now hash over the rq_pages array */
for (i = 0; i < rqst->rq_npages; i++) {
struct kvec p_iov;
cifs_rqst_page_to_kvec(rqst, i, &p_iov);
crypto_shash_update(&server->secmech.sdescmd5->shash,
p_iov.iov_base, p_iov.iov_len);
kunmap(rqst->rq_pages[i]);
}
rc = crypto_shash_final(&server->secmech.sdescmd5->shash, signature);
if (rc)
cERROR(1, "%s: Could not generate md5 hash", __func__);
......@@ -99,12 +112,12 @@ static int cifs_calc_signature(const struct kvec *iov, int n_vec,
}
/* must be called with server->srv_mutex held */
int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *server,
int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
__u32 *pexpected_response_sequence_number)
{
int rc = 0;
char smb_signature[20];
struct smb_hdr *cifs_pdu = (struct smb_hdr *)iov[0].iov_base;
struct smb_hdr *cifs_pdu = (struct smb_hdr *)rqst->rq_iov[0].iov_base;
if ((cifs_pdu == NULL) || (server == NULL))
return -EINVAL;
......@@ -125,7 +138,7 @@ int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *server,
*pexpected_response_sequence_number = server->sequence_number++;
server->sequence_number++;
rc = cifs_calc_signature(iov, n_vec, server, smb_signature);
rc = cifs_calc_signature(rqst, server, smb_signature);
if (rc)
memset(cifs_pdu->Signature.SecuritySignature, 0, 8);
else
......@@ -134,6 +147,15 @@ int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *server,
return rc;
}
int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *server,
__u32 *pexpected_response_sequence)
{
struct smb_rqst rqst = { .rq_iov = iov,
.rq_nvec = n_vec };
return cifs_sign_rqst(&rqst, server, pexpected_response_sequence);
}
/* must be called with server->srv_mutex held */
int cifs_sign_smb(struct smb_hdr *cifs_pdu, struct TCP_Server_Info *server,
__u32 *pexpected_response_sequence_number)
......@@ -147,14 +169,14 @@ int cifs_sign_smb(struct smb_hdr *cifs_pdu, struct TCP_Server_Info *server,
pexpected_response_sequence_number);
}
int cifs_verify_signature(struct kvec *iov, unsigned int nr_iov,
int cifs_verify_signature(struct smb_rqst *rqst,
struct TCP_Server_Info *server,
__u32 expected_sequence_number)
{
unsigned int rc;
char server_response_sig[8];
char what_we_think_sig_should_be[20];
struct smb_hdr *cifs_pdu = (struct smb_hdr *)iov[0].iov_base;
struct smb_hdr *cifs_pdu = (struct smb_hdr *)rqst->rq_iov[0].iov_base;
if (cifs_pdu == NULL || server == NULL)
return -EINVAL;
......@@ -186,8 +208,7 @@ int cifs_verify_signature(struct kvec *iov, unsigned int nr_iov,
cifs_pdu->Signature.Sequence.Reserved = 0;
mutex_lock(&server->srv_mutex);
rc = cifs_calc_signature(iov, nr_iov, server,
what_we_think_sig_should_be);
rc = cifs_calc_signature(rqst, server, what_we_think_sig_should_be);
mutex_unlock(&server->srv_mutex);
if (rc)
......@@ -686,12 +707,17 @@ calc_seckey(struct cifs_ses *ses)
void
cifs_crypto_shash_release(struct TCP_Server_Info *server)
{
if (server->secmech.hmacsha256)
crypto_free_shash(server->secmech.hmacsha256);
if (server->secmech.md5)
crypto_free_shash(server->secmech.md5);
if (server->secmech.hmacmd5)
crypto_free_shash(server->secmech.hmacmd5);
kfree(server->secmech.sdeschmacsha256);
kfree(server->secmech.sdeschmacmd5);
kfree(server->secmech.sdescmd5);
......@@ -716,6 +742,13 @@ cifs_crypto_shash_allocate(struct TCP_Server_Info *server)
goto crypto_allocate_md5_fail;
}
server->secmech.hmacsha256 = crypto_alloc_shash("hmac(sha256)", 0, 0);
if (IS_ERR(server->secmech.hmacsha256)) {
cERROR(1, "could not allocate crypto hmacsha256\n");
rc = PTR_ERR(server->secmech.hmacsha256);
goto crypto_allocate_hmacsha256_fail;
}
size = sizeof(struct shash_desc) +
crypto_shash_descsize(server->secmech.hmacmd5);
server->secmech.sdeschmacmd5 = kmalloc(size, GFP_KERNEL);
......@@ -727,7 +760,6 @@ cifs_crypto_shash_allocate(struct TCP_Server_Info *server)
server->secmech.sdeschmacmd5->shash.tfm = server->secmech.hmacmd5;
server->secmech.sdeschmacmd5->shash.flags = 0x0;
size = sizeof(struct shash_desc) +
crypto_shash_descsize(server->secmech.md5);
server->secmech.sdescmd5 = kmalloc(size, GFP_KERNEL);
......@@ -739,12 +771,29 @@ cifs_crypto_shash_allocate(struct TCP_Server_Info *server)
server->secmech.sdescmd5->shash.tfm = server->secmech.md5;
server->secmech.sdescmd5->shash.flags = 0x0;
size = sizeof(struct shash_desc) +
crypto_shash_descsize(server->secmech.hmacsha256);
server->secmech.sdeschmacsha256 = kmalloc(size, GFP_KERNEL);
if (!server->secmech.sdeschmacsha256) {
cERROR(1, "%s: Can't alloc hmacsha256\n", __func__);
rc = -ENOMEM;
goto crypto_allocate_hmacsha256_sdesc_fail;
}
server->secmech.sdeschmacsha256->shash.tfm = server->secmech.hmacsha256;
server->secmech.sdeschmacsha256->shash.flags = 0x0;
return 0;
crypto_allocate_hmacsha256_sdesc_fail:
kfree(server->secmech.sdescmd5);
crypto_allocate_md5_sdesc_fail:
kfree(server->secmech.sdeschmacmd5);
crypto_allocate_hmacmd5_sdesc_fail:
crypto_free_shash(server->secmech.hmacsha256);
crypto_allocate_hmacsha256_fail:
crypto_free_shash(server->secmech.md5);
crypto_allocate_md5_fail:
......
fs/cifs/cifsfs.c
浏览文件 @ 797b9e5a
......@@ -36,6 +36,7 @@
#include <linux/kthread.h>
#include <linux/freezer.h>
#include <linux/namei.h>
#include <linux/random.h>
#include <net/ipv6.h>
#include "cifsfs.h"
#include "cifspdu.h"
......@@ -51,7 +52,6 @@
#ifdef CONFIG_CIFS_SMB2
#include "smb2pdu.h"
#endif
#define CIFS_MAGIC_NUMBER 0xFF534D42 /* the first four bytes of SMB PDUs */
int cifsFYI = 0;
int cifsERROR = 1;
......@@ -89,6 +89,10 @@ extern mempool_t *cifs_mid_poolp;
struct workqueue_struct *cifsiod_wq;
#ifdef CONFIG_CIFS_SMB2
__u8 cifs_client_guid[SMB2_CLIENT_GUID_SIZE];
#endif
static int
cifs_read_super(struct super_block *sb)
{
......@@ -160,13 +164,12 @@ cifs_statfs(struct dentry *dentry, struct kstatfs *buf)
struct super_block *sb = dentry->d_sb;
struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
int rc = -EOPNOTSUPP;
struct TCP_Server_Info *server = tcon->ses->server;
unsigned int xid;
int rc = 0;
xid = get_xid();
buf->f_type = CIFS_MAGIC_NUMBER;
/*
* PATH_MAX may be too long - it would presumably be total path,
* but note that some servers (includinng Samba 3) have a shorter
......@@ -178,27 +181,8 @@ cifs_statfs(struct dentry *dentry, struct kstatfs *buf)
buf->f_files = 0; /* undefined */
buf->f_ffree = 0; /* unlimited */
/*
* We could add a second check for a QFS Unix capability bit
*/
if ((tcon->ses->capabilities & CAP_UNIX) &&
(CIFS_POSIX_EXTENSIONS & le64_to_cpu(tcon->fsUnixInfo.Capability)))
rc = CIFSSMBQFSPosixInfo(xid, tcon, buf);
/*
* Only need to call the old QFSInfo if failed on newer one,
* e.g. by OS/2.
**/
if (rc && (tcon->ses->capabilities & CAP_NT_SMBS))
rc = CIFSSMBQFSInfo(xid, tcon, buf);
/*
* Some old Windows servers also do not support level 103, retry with
* older level one if old server failed the previous call or we
* bypassed it because we detected that this was an older LANMAN sess
*/
if (rc)
rc = SMBOldQFSInfo(xid, tcon, buf);
if (server->ops->queryfs)
rc = server->ops->queryfs(xid, tcon, buf);
free_xid(xid);
return 0;
......@@ -239,9 +223,10 @@ cifs_alloc_inode(struct super_block *sb)
return NULL;
cifs_inode->cifsAttrs = 0x20; /* default */
cifs_inode->time = 0;
/* Until the file is open and we have gotten oplock
info back from the server, can not assume caching of
file data or metadata */
/*
* Until the file is open and we have gotten oplock info back from the
* server, can not assume caching of file data or metadata.
*/
cifs_set_oplock_level(cifs_inode, 0);
cifs_inode->delete_pending = false;
cifs_inode->invalid_mapping = false;
......@@ -249,11 +234,16 @@ cifs_alloc_inode(struct super_block *sb)
cifs_inode->server_eof = 0;
cifs_inode->uniqueid = 0;
cifs_inode->createtime = 0;
/* Can not set i_flags here - they get immediately overwritten
to zero by the VFS */
/* cifs_inode->vfs_inode.i_flags = S_NOATIME | S_NOCMTIME;*/
#ifdef CONFIG_CIFS_SMB2
get_random_bytes(cifs_inode->lease_key, SMB2_LEASE_KEY_SIZE);
#endif
/*
* Can not set i_flags here - they get immediately overwritten to zero
* by the VFS.
*/
/* cifs_inode->vfs_inode.i_flags = S_NOATIME | S_NOCMTIME; */
INIT_LIST_HEAD(&cifs_inode->openFileList);
INIT_LIST_HEAD(&cifs_inode->llist);
return &cifs_inode->vfs_inode;
}
......@@ -360,7 +350,8 @@ cifs_show_options(struct seq_file *s, struct dentry *root)
cifs_show_security(s, tcon->ses->server);
cifs_show_cache_flavor(s, cifs_sb);
seq_printf(s, ",unc=%s", tcon->treeName);
seq_printf(s, ",unc=");
seq_escape(s, tcon->treeName, " \t\n\\");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MULTIUSER)
seq_printf(s, ",multiuser");
......@@ -957,7 +948,7 @@ cifs_init_once(void *inode)
struct cifsInodeInfo *cifsi = inode;
inode_init_once(&cifsi->vfs_inode);
mutex_init(&cifsi->lock_mutex);
init_rwsem(&cifsi->lock_sem);
}
static int
......@@ -1127,6 +1118,10 @@ init_cifs(void)
spin_lock_init(&cifs_file_list_lock);
spin_lock_init(&GlobalMid_Lock);
#ifdef CONFIG_CIFS_SMB2
get_random_bytes(cifs_client_guid, SMB2_CLIENT_GUID_SIZE);
#endif
if (cifs_max_pending < 2) {
cifs_max_pending = 2;
cFYI(1, "cifs_max_pending set to min of 2");
......
fs/cifs/cifsfs.h
浏览文件 @ 797b9e5a
......@@ -128,5 +128,5 @@ extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
extern const struct export_operations cifs_export_ops;
#endif /* CONFIG_CIFS_NFSD_EXPORT */
#define CIFS_VERSION "1.78"
#define CIFS_VERSION "2.0"
#endif /* _CIFSFS_H */
fs/cifs/cifsglob.h
浏览文件 @ 797b9e5a
......@@ -32,6 +32,8 @@
#include "smb2pdu.h"
#endif
#define CIFS_MAGIC_NUMBER 0xFF534D42 /* the first four bytes of SMB PDUs */
/*
* The sizes of various internal tables and strings
*/
......@@ -128,8 +130,10 @@ struct sdesc {
struct cifs_secmech {
struct crypto_shash *hmacmd5; /* hmac-md5 hash function */
struct crypto_shash *md5; /* md5 hash function */
struct crypto_shash *hmacsha256; /* hmac-sha256 hash function */
struct sdesc *sdeschmacmd5; /* ctxt to generate ntlmv2 hash, CR1 */
struct sdesc *sdescmd5; /* ctxt to generate cifs/smb signature */
struct sdesc *sdeschmacsha256; /* ctxt to generate smb2 signature */
};
/* per smb session structure/fields */
......@@ -158,9 +162,24 @@ struct cifs_cred {
*****************************************************************
*/
/*
* A smb_rqst represents a complete request to be issued to a server. It's
* formed by a kvec array, followed by an array of pages. Page data is assumed
* to start at the beginning of the first page.
*/
struct smb_rqst {
struct kvec *rq_iov; /* array of kvecs */
unsigned int rq_nvec; /* number of kvecs in array */
struct page **rq_pages; /* pointer to array of page ptrs */
unsigned int rq_npages; /* number pages in array */
unsigned int rq_pagesz; /* page size to use */
unsigned int rq_tailsz; /* length of last page */
};
enum smb_version {
Smb_1 = 1,
Smb_21,
Smb_30,
};
struct mid_q_entry;
......@@ -171,17 +190,23 @@ struct cifs_tcon;
struct dfs_info3_param;
struct cifs_fattr;
struct smb_vol;
struct cifs_fid;
struct cifs_readdata;
struct cifs_writedata;
struct cifs_io_parms;
struct cifs_search_info;
struct cifsInodeInfo;
struct smb_version_operations {
int (*send_cancel)(struct TCP_Server_Info *, void *,
struct mid_q_entry *);
bool (*compare_fids)(struct cifsFileInfo *, struct cifsFileInfo *);
/* setup request: allocate mid, sign message */
int (*setup_request)(struct cifs_ses *, struct kvec *, unsigned int,
struct mid_q_entry **);
struct mid_q_entry *(*setup_request)(struct cifs_ses *,
struct smb_rqst *);
/* setup async request: allocate mid, sign message */
int (*setup_async_request)(struct TCP_Server_Info *, struct kvec *,
unsigned int, struct mid_q_entry **);
struct mid_q_entry *(*setup_async_request)(struct TCP_Server_Info *,
struct smb_rqst *);
/* check response: verify signature, map error */
int (*check_receive)(struct mid_q_entry *, struct TCP_Server_Info *,
bool);
......@@ -212,6 +237,10 @@ struct smb_version_operations {
bool (*need_neg)(struct TCP_Server_Info *);
/* negotiate to the server */
int (*negotiate)(const unsigned int, struct cifs_ses *);
/* set negotiated write size */
unsigned int (*negotiate_wsize)(struct cifs_tcon *, struct smb_vol *);
/* set negotiated read size */
unsigned int (*negotiate_rsize)(struct cifs_tcon *, struct smb_vol *);
/* setup smb sessionn */
int (*sess_setup)(const unsigned int, struct cifs_ses *,
const struct nls_table *);
......@@ -235,10 +264,22 @@ struct smb_version_operations {
int (*query_path_info)(const unsigned int, struct cifs_tcon *,
struct cifs_sb_info *, const char *,
FILE_ALL_INFO *, bool *);
/* query file data from the server */
int (*query_file_info)(const unsigned int, struct cifs_tcon *,
struct cifs_fid *, FILE_ALL_INFO *);
/* get server index number */
int (*get_srv_inum)(const unsigned int, struct cifs_tcon *,
struct cifs_sb_info *, const char *,
u64 *uniqueid, FILE_ALL_INFO *);
/* set size by path */
int (*set_path_size)(const unsigned int, struct cifs_tcon *,
const char *, __u64, struct cifs_sb_info *, bool);
/* set size by file handle */
int (*set_file_size)(const unsigned int, struct cifs_tcon *,
struct cifsFileInfo *, __u64, bool);
/* set attributes */
int (*set_file_info)(struct inode *, const char *, FILE_BASIC_INFO *,
const unsigned int);
/* build a full path to the root of the mount */
char * (*build_path_to_root)(struct smb_vol *, struct cifs_sb_info *,
struct cifs_tcon *);
......@@ -256,10 +297,84 @@ struct smb_version_operations {
/* remove directory */
int (*rmdir)(const unsigned int, struct cifs_tcon *, const char *,
struct cifs_sb_info *);
/* unlink file */
int (*unlink)(const unsigned int, struct cifs_tcon *, const char *,
struct cifs_sb_info *);
/* open, rename and delete file */
int (*rename_pending_delete)(const char *, struct dentry *,
const unsigned int);
/* send rename request */
int (*rename)(const unsigned int, struct cifs_tcon *, const char *,
const char *, struct cifs_sb_info *);
/* send create hardlink request */
int (*create_hardlink)(const unsigned int, struct cifs_tcon *,
const char *, const char *,
struct cifs_sb_info *);
/* open a file for non-posix mounts */
int (*open)(const unsigned int, struct cifs_tcon *, const char *, int,
int, int, struct cifs_fid *, __u32 *, FILE_ALL_INFO *,
struct cifs_sb_info *);
/* set fid protocol-specific info */
void (*set_fid)(struct cifsFileInfo *, struct cifs_fid *, __u32);
/* close a file */
void (*close)(const unsigned int, struct cifs_tcon *,
struct cifs_fid *);
/* send a flush request to the server */
int (*flush)(const unsigned int, struct cifs_tcon *, struct cifs_fid *);
/* async read from the server */
int (*async_readv)(struct cifs_readdata *);
/* async write to the server */
int (*async_writev)(struct cifs_writedata *);
/* sync read from the server */
int (*sync_read)(const unsigned int, struct cifsFileInfo *,
struct cifs_io_parms *, unsigned int *, char **,
int *);
/* sync write to the server */
int (*sync_write)(const unsigned int, struct cifsFileInfo *,
struct cifs_io_parms *, unsigned int *, struct kvec *,
unsigned long);
/* open dir, start readdir */
int (*query_dir_first)(const unsigned int, struct cifs_tcon *,
const char *, struct cifs_sb_info *,
struct cifs_fid *, __u16,
struct cifs_search_info *);
/* continue readdir */
int (*query_dir_next)(const unsigned int, struct cifs_tcon *,
struct cifs_fid *,
__u16, struct cifs_search_info *srch_inf);
/* close dir */
int (*close_dir)(const unsigned int, struct cifs_tcon *,
struct cifs_fid *);
/* calculate a size of SMB message */
unsigned int (*calc_smb_size)(void *);
/* check for STATUS_PENDING and process it in a positive case */
bool (*is_status_pending)(char *, struct TCP_Server_Info *, int);
/* send oplock break response */
int (*oplock_response)(struct cifs_tcon *, struct cifs_fid *,
struct cifsInodeInfo *);
/* query remote filesystem */
int (*queryfs)(const unsigned int, struct cifs_tcon *,
struct kstatfs *);
/* send mandatory brlock to the server */
int (*mand_lock)(const unsigned int, struct cifsFileInfo *, __u64,
__u64, __u32, int, int, bool);
/* unlock range of mandatory locks */
int (*mand_unlock_range)(struct cifsFileInfo *, struct file_lock *,
const unsigned int);
/* push brlocks from the cache to the server */
int (*push_mand_locks)(struct cifsFileInfo *);
/* get lease key of the inode */
void (*get_lease_key)(struct inode *, struct cifs_fid *fid);
/* set lease key of the inode */
void (*set_lease_key)(struct inode *, struct cifs_fid *fid);
/* generate new lease key */
void (*new_lease_key)(struct cifs_fid *fid);
};
struct smb_version_values {
char *version_string;
__u16 protocol_id;
__u32 req_capabilities;
__u32 large_lock_type;
__u32 exclusive_lock_type;
__u32 shared_lock_type;
......@@ -495,6 +610,51 @@ get_next_mid(struct TCP_Server_Info *server)
return server->ops->get_next_mid(server);
}
/*
* When the server supports very large reads and writes via POSIX extensions,
* we can allow up to 2^24-1, minus the size of a READ/WRITE_AND_X header, not
* including the RFC1001 length.
*
* Note that this might make for "interesting" allocation problems during
* writeback however as we have to allocate an array of pointers for the
* pages. A 16M write means ~32kb page array with PAGE_CACHE_SIZE == 4096.
*
* For reads, there is a similar problem as we need to allocate an array
* of kvecs to handle the receive, though that should only need to be done
* once.
*/
#define CIFS_MAX_WSIZE ((1<<24) - 1 - sizeof(WRITE_REQ) + 4)
#define CIFS_MAX_RSIZE ((1<<24) - sizeof(READ_RSP) + 4)
/*
* When the server doesn't allow large posix writes, only allow a rsize/wsize
* of 2^17-1 minus the size of the call header. That allows for a read or
* write up to the maximum size described by RFC1002.
*/
#define CIFS_MAX_RFC1002_WSIZE ((1<<17) - 1 - sizeof(WRITE_REQ) + 4)
#define CIFS_MAX_RFC1002_RSIZE ((1<<17) - 1 - sizeof(READ_RSP) + 4)
/*
* The default wsize is 1M. find_get_pages seems to return a maximum of 256
* pages in a single call. With PAGE_CACHE_SIZE == 4k, this means we can fill
* a single wsize request with a single call.
*/
#define CIFS_DEFAULT_IOSIZE (1024 * 1024)
/*
* Windows only supports a max of 60kb reads and 65535 byte writes. Default to
* those values when posix extensions aren't in force. In actuality here, we
* use 65536 to allow for a write that is a multiple of 4k. Most servers seem
* to be ok with the extra byte even though Windows doesn't send writes that
* are that large.
*
* Citation:
*
* http://blogs.msdn.com/b/openspecification/archive/2009/04/10/smb-maximum-transmit-buffer-size-and-performance-tuning.aspx
*/
#define CIFS_DEFAULT_NON_POSIX_RSIZE (60 * 1024)
#define CIFS_DEFAULT_NON_POSIX_WSIZE (65536)
/*
* Macros to allow the TCP_Server_Info->net field and related code to drop out
* when CONFIG_NET_NS isn't set.
......@@ -559,6 +719,7 @@ struct cifs_ses {
__u16 session_flags;
#endif /* CONFIG_CIFS_SMB2 */
};
/* no more than one of the following three session flags may be set */
#define CIFS_SES_NT4 1
#define CIFS_SES_OS2 2
......@@ -665,6 +826,7 @@ struct cifs_tcon {
u64 resource_id; /* server resource id */
struct fscache_cookie *fscache; /* cookie for share */
#endif
struct list_head pending_opens; /* list of incomplete opens */
/* BB add field for back pointer to sb struct(s)? */
};
......@@ -707,6 +869,15 @@ cifs_get_tlink(struct tcon_link *tlink)
/* This function is always expected to succeed */
extern struct cifs_tcon *cifs_sb_master_tcon(struct cifs_sb_info *cifs_sb);
#define CIFS_OPLOCK_NO_CHANGE 0xfe
struct cifs_pending_open {
struct list_head olist;
struct tcon_link *tlink;
__u8 lease_key[16];
__u32 oplock;
};
/*
* This info hangs off the cifsFileInfo structure, pointed to by llist.
* This is used to track byte stream locks on the file
......@@ -740,16 +911,29 @@ struct cifs_search_info {
bool smallBuf:1; /* so we know which buf_release function to call */
};
struct cifs_fid {
__u16 netfid;
#ifdef CONFIG_CIFS_SMB2
__u64 persistent_fid; /* persist file id for smb2 */
__u64 volatile_fid; /* volatile file id for smb2 */
__u8 lease_key[SMB2_LEASE_KEY_SIZE]; /* lease key for smb2 */
#endif
struct cifs_pending_open *pending_open;
};
struct cifs_fid_locks {
struct list_head llist;
struct cifsFileInfo *cfile; /* fid that owns locks */
struct list_head locks; /* locks held by fid above */
};
struct cifsFileInfo {
struct list_head tlist; /* pointer to next fid owned by tcon */
struct list_head flist; /* next fid (file instance) for this inode */
struct list_head llist; /*
* brlocks held by this fid, protected by
* lock_mutex from cifsInodeInfo structure
*/
struct cifs_fid_locks *llist; /* brlocks held by this fid */
unsigned int uid; /* allows finding which FileInfo structure */
__u32 pid; /* process id who opened file */
__u16 netfid; /* file id from remote */
struct cifs_fid fid; /* file id from remote */
/* BB add lock scope info here if needed */ ;
/* lock scope id (0 if none) */
struct dentry *dentry;
......@@ -765,12 +949,60 @@ struct cifsFileInfo {
struct cifs_io_parms {
__u16 netfid;
#ifdef CONFIG_CIFS_SMB2
__u64 persistent_fid; /* persist file id for smb2 */
__u64 volatile_fid; /* volatile file id for smb2 */
#endif
__u32 pid;
__u64 offset;
unsigned int length;
struct cifs_tcon *tcon;
};
struct cifs_readdata;
/* asynchronous read support */
struct cifs_readdata {
struct kref refcount;
struct list_head list;
struct completion done;
struct cifsFileInfo *cfile;
struct address_space *mapping;
__u64 offset;
unsigned int bytes;
pid_t pid;
int result;
struct work_struct work;
int (*read_into_pages)(struct TCP_Server_Info *server,
struct cifs_readdata *rdata,
unsigned int len);
struct kvec iov;
unsigned int pagesz;
unsigned int tailsz;
unsigned int nr_pages;
struct page *pages[];
};
struct cifs_writedata;
/* asynchronous write support */
struct cifs_writedata {
struct kref refcount;
struct list_head list;
struct completion done;
enum writeback_sync_modes sync_mode;
struct work_struct work;
struct cifsFileInfo *cfile;
__u64 offset;
pid_t pid;
unsigned int bytes;
int result;
unsigned int pagesz;
unsigned int tailsz;
unsigned int nr_pages;
struct page *pages[1];
};
/*
* Take a reference on the file private data. Must be called with
* cifs_file_list_lock held.
......@@ -790,11 +1022,8 @@ void cifsFileInfo_put(struct cifsFileInfo *cifs_file);
struct cifsInodeInfo {
bool can_cache_brlcks;
struct mutex lock_mutex; /*
* protect the field above and llist
* from every cifsFileInfo structure
* from openFileList
*/
struct list_head llist; /* locks helb by this inode */
struct rw_semaphore lock_sem; /* protect the fields above */
/* BB add in lists for dirty pages i.e. write caching info for oplock */
struct list_head openFileList;
__u32 cifsAttrs; /* e.g. DOS archive bit, sparse, compressed, system */
......@@ -806,6 +1035,9 @@ struct cifsInodeInfo {
u64 server_eof; /* current file size on server -- protected by i_lock */
u64 uniqueid; /* server inode number */
u64 createtime; /* creation time on server */
#ifdef CONFIG_CIFS_SMB2
__u8 lease_key[SMB2_LEASE_KEY_SIZE]; /* lease key for this inode */
#endif
#ifdef CONFIG_CIFS_FSCACHE
struct fscache_cookie *fscache;
#endif
......@@ -1130,7 +1362,7 @@ require use of the stronger protocol */
#define CIFSSEC_MUST_SEAL 0x40040 /* not supported yet */
#define CIFSSEC_MUST_NTLMSSP 0x80080 /* raw ntlmssp with ntlmv2 */
#define CIFSSEC_DEF (CIFSSEC_MAY_SIGN | CIFSSEC_MAY_NTLM | CIFSSEC_MAY_NTLMV2)
#define CIFSSEC_DEF (CIFSSEC_MAY_SIGN | CIFSSEC_MAY_NTLM | CIFSSEC_MAY_NTLMV2 | CIFSSEC_MAY_NTLMSSP)
#define CIFSSEC_MAX (CIFSSEC_MUST_SIGN | CIFSSEC_MUST_NTLMV2)
#define CIFSSEC_AUTH_MASK (CIFSSEC_MAY_NTLM | CIFSSEC_MAY_NTLMV2 | CIFSSEC_MAY_LANMAN | CIFSSEC_MAY_PLNTXT | CIFSSEC_MAY_KRB5 | CIFSSEC_MAY_NTLMSSP)
/*
......@@ -1267,7 +1499,13 @@ extern mempool_t *cifs_mid_poolp;
#define SMB1_VERSION_STRING "1.0"
extern struct smb_version_operations smb1_operations;
extern struct smb_version_values smb1_values;
#define SMB20_VERSION_STRING "2.0"
/*extern struct smb_version_operations smb20_operations; */ /* not needed yet */
extern struct smb_version_values smb20_values;
#define SMB21_VERSION_STRING "2.1"
extern struct smb_version_operations smb21_operations;
extern struct smb_version_values smb21_values;
#define SMB30_VERSION_STRING "3.0"
/*extern struct smb_version_operations smb30_operations; */ /* not needed yet */
extern struct smb_version_values smb30_values;
#endif /* _CIFS_GLOB_H */
fs/cifs/cifspdu.h
浏览文件 @ 797b9e5a
......@@ -2210,7 +2210,7 @@ typedef struct { /* data block encoding of response to level 263 QPathInfo */
__u8 DeletePending;
__u8 Directory;
__u16 Pad2;
__u64 IndexNumber;
__le64 IndexNumber;
__le32 EASize;
__le32 AccessFlags;
__u64 IndexNumber1;
......
fs/cifs/cifsproto.h
浏览文件 @ 797b9e5a
......@@ -24,6 +24,7 @@
struct statfs;
struct smb_vol;
struct smb_rqst;
/*
*****************************************************************
......@@ -35,6 +36,8 @@ extern struct smb_hdr *cifs_buf_get(void);
extern void cifs_buf_release(void *);
extern struct smb_hdr *cifs_small_buf_get(void);
extern void cifs_small_buf_release(void *);
extern void cifs_rqst_page_to_kvec(struct smb_rqst *rqst, unsigned int idx,
struct kvec *iov);
extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,
unsigned int /* length */);
extern unsigned int _get_xid(void);
......@@ -65,21 +68,22 @@ extern char *cifs_compose_mount_options(const char *sb_mountdata,
extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
struct TCP_Server_Info *server);
extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
extern void cifs_delete_mid(struct mid_q_entry *mid);
extern void cifs_wake_up_task(struct mid_q_entry *mid);
extern int cifs_call_async(struct TCP_Server_Info *server, struct kvec *iov,
unsigned int nvec, mid_receive_t *receive,
mid_callback_t *callback, void *cbdata,
const int flags);
extern int cifs_call_async(struct TCP_Server_Info *server,
struct smb_rqst *rqst,
mid_receive_t *receive, mid_callback_t *callback,
void *cbdata, const int flags);
extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
struct smb_hdr * /* input */ ,
struct smb_hdr * /* out */ ,
int * /* bytes returned */ , const int);
extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
char *in_buf, int flags);
extern int cifs_setup_request(struct cifs_ses *, struct kvec *, unsigned int,
struct mid_q_entry **);
extern int cifs_setup_async_request(struct TCP_Server_Info *, struct kvec *,
unsigned int, struct mid_q_entry **);
extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *,
struct smb_rqst *);
extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
struct smb_rqst *);
extern int cifs_check_receive(struct mid_q_entry *mid,
struct TCP_Server_Info *server, bool log_error);
extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
......@@ -99,7 +103,7 @@ extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
unsigned int bytes_written);
extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
extern unsigned int smbCalcSize(struct smb_hdr *ptr);
extern unsigned int smbCalcSize(void *buf);
extern int decode_negTokenInit(unsigned char *security_blob, int length,
struct TCP_Server_Info *server);
extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
......@@ -120,10 +124,14 @@ extern u64 cifs_UnixTimeToNT(struct timespec);
extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
int offset);
extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
extern struct cifsFileInfo *cifs_new_fileinfo(__u16 fileHandle,
struct file *file, struct tcon_link *tlink,
__u32 oplock);
extern int cifs_unlock_range(struct cifsFileInfo *cfile,
struct file_lock *flock, const unsigned int xid);
extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);
extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid,
struct file *file,
struct tcon_link *tlink,
__u32 oplock);
extern int cifs_posix_open(char *full_path, struct inode **inode,
struct super_block *sb, int mode,
unsigned int f_flags, __u32 *oplock, __u16 *netfid,
......@@ -132,18 +140,23 @@ void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
FILE_UNIX_BASIC_INFO *info,
struct cifs_sb_info *cifs_sb);
extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *,
struct cifs_sb_info *);
extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
extern struct inode *cifs_iget(struct super_block *sb,
struct cifs_fattr *fattr);
extern int cifs_get_file_info(struct file *filp);
extern int cifs_get_inode_info(struct inode **inode, const char *full_path,
FILE_ALL_INFO *data, struct super_block *sb,
int xid, const __u16 *fid);
extern int cifs_get_file_info_unix(struct file *filp);
extern int cifs_get_inode_info_unix(struct inode **pinode,
const unsigned char *search_path,
struct super_block *sb, unsigned int xid);
extern int cifs_set_file_info(struct inode *inode, struct iattr *attrs,
unsigned int xid, char *full_path, __u32 dosattr);
extern int cifs_rename_pending_delete(const char *full_path,
struct dentry *dentry,
const unsigned int xid);
extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
struct cifs_fattr *fattr, struct inode *inode,
const char *path, const __u16 *pfid);
......@@ -169,6 +182,17 @@ extern struct smb_vol *cifs_get_volume_info(char *mount_data,
extern int cifs_mount(struct cifs_sb_info *, struct smb_vol *);
extern void cifs_umount(struct cifs_sb_info *);
extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
__u64 length, __u8 type,
struct cifsLockInfo **conf_lock,
bool rw_check);
extern void cifs_add_pending_open(struct cifs_fid *fid,
struct tcon_link *tlink,
struct cifs_pending_open *open);
extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
struct tcon_link *tlink,
struct cifs_pending_open *open);
extern void cifs_del_pending_open(struct cifs_pending_open *open);
#if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
extern void cifs_dfs_release_automount_timer(void);
......@@ -179,6 +203,10 @@ extern void cifs_dfs_release_automount_timer(void);
void cifs_proc_init(void);
void cifs_proc_clean(void);
extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
extern void cifs_free_llist(struct list_head *llist);
extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
extern int cifs_negotiate_protocol(const unsigned int xid,
struct cifs_ses *ses);
extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
......@@ -190,10 +218,10 @@ extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
const struct nls_table *);
extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
const char *searchName, const struct nls_table *nls_codepage,
const char *searchName, struct cifs_sb_info *cifs_sb,
__u16 *searchHandle, __u16 search_flags,
struct cifs_search_info *psrch_inf,
int map, const char dirsep);
bool msearch);
extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
__u16 searchHandle, __u16 search_flags,
......@@ -265,13 +293,11 @@ extern int CIFSSMBSetAttrLegacy(unsigned int xid, struct cifs_tcon *tcon,
const struct nls_table *nls_codepage);
#endif /* possibly unneeded function */
extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
const char *fileName, __u64 size,
bool setAllocationSizeFlag,
const struct nls_table *nls_codepage,
int remap_special_chars);
const char *file_name, __u64 size,
struct cifs_sb_info *cifs_sb, bool set_allocation);
extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
__u64 size, __u16 fileHandle, __u32 opener_pid,
bool AllocSizeFlag);
struct cifsFileInfo *cfile, __u64 size,
bool set_allocation);
struct cifs_unix_set_info_args {
__u64 ctime;
......@@ -303,22 +329,17 @@ extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
const struct nls_table *nls_codepage,
int remap_special_chars);
extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
const char *name,
const struct nls_table *nls_codepage,
int remap_special_chars);
const char *name, struct cifs_sb_info *cifs_sb);
extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
const char *fromName, const char *toName,
const struct nls_table *nls_codepage,
int remap_special_chars);
const char *from_name, const char *to_name,
struct cifs_sb_info *cifs_sb);
extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
int netfid, const char *target_name,
const struct nls_table *nls_codepage,
int remap_special_chars);
extern int CIFSCreateHardLink(const unsigned int xid,
struct cifs_tcon *tcon,
const char *fromName, const char *toName,
const struct nls_table *nls_codepage,
int remap_special_chars);
extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
const char *from_name, const char *to_name,
struct cifs_sb_info *cifs_sb);
extern int CIFSUnixCreateHardLink(const unsigned int xid,
struct cifs_tcon *tcon,
const char *fromName, const char *toName,
......@@ -367,8 +388,7 @@ extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
unsigned int *nbytes, const char *buf,
const char __user *ubuf, const int long_op);
extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
unsigned int *nbytes, struct kvec *iov, const int nvec,
const int long_op);
unsigned int *nbytes, struct kvec *iov, const int nvec);
extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
const char *search_name, __u64 *inode_number,
const struct nls_table *nls_codepage,
......@@ -397,10 +417,12 @@ extern void sesInfoFree(struct cifs_ses *);
extern struct cifs_tcon *tconInfoAlloc(void);
extern void tconInfoFree(struct cifs_tcon *);
extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
__u32 *pexpected_response_sequence_number);
extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
__u32 *);
extern int cifs_verify_signature(struct kvec *iov, unsigned int nr_iov,
extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
extern int cifs_verify_signature(struct smb_rqst *rqst,
struct TCP_Server_Info *server,
__u32 expected_sequence_number);
extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
......@@ -462,45 +484,9 @@ extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
unsigned char *p24);
/* asynchronous read support */
struct cifs_readdata {
struct kref refcount;
struct list_head list;
struct completion done;
struct cifsFileInfo *cfile;
struct address_space *mapping;
__u64 offset;
unsigned int bytes;
pid_t pid;
int result;
struct list_head pages;
struct work_struct work;
int (*marshal_iov) (struct cifs_readdata *rdata,
unsigned int remaining);
unsigned int nr_iov;
struct kvec iov[1];
};
void cifs_readdata_release(struct kref *refcount);
int cifs_async_readv(struct cifs_readdata *rdata);
/* asynchronous write support */
struct cifs_writedata {
struct kref refcount;
struct list_head list;
struct completion done;
enum writeback_sync_modes sync_mode;
struct work_struct work;
struct cifsFileInfo *cfile;
__u64 offset;
pid_t pid;
unsigned int bytes;
int result;
void (*marshal_iov) (struct kvec *iov,
struct cifs_writedata *wdata);
unsigned int nr_pages;
struct page *pages[1];
};
int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
int cifs_async_writev(struct cifs_writedata *wdata);
void cifs_writev_complete(struct work_struct *work);
......
fs/cifs/cifssmb.c
浏览文件 @ 797b9e5a
此差异已折叠。
fs/cifs/connect.c
浏览文件 @ 797b9e5a
......@@ -82,8 +82,7 @@ enum {
Opt_serverino, Opt_noserverino,
Opt_rwpidforward, Opt_cifsacl, Opt_nocifsacl,
Opt_acl, Opt_noacl, Opt_locallease,
Opt_sign, Opt_seal, Opt_direct,
Opt_strictcache, Opt_noac,
Opt_sign, Opt_seal, Opt_noac,
Opt_fsc, Opt_mfsymlinks,
Opt_multiuser, Opt_sloppy,
......@@ -160,10 +159,6 @@ static const match_table_t cifs_mount_option_tokens = {
{ Opt_locallease, "locallease" },
{ Opt_sign, "sign" },
{ Opt_seal, "seal" },
{ Opt_direct, "direct" },
{ Opt_direct, "directio" },
{ Opt_direct, "forcedirectio" },
{ Opt_strictcache, "strictcache" },
{ Opt_noac, "noac" },
{ Opt_fsc, "fsc" },
{ Opt_mfsymlinks, "mfsymlinks" },
......@@ -277,6 +272,7 @@ static const match_table_t cifs_cacheflavor_tokens = {
static const match_table_t cifs_smb_version_tokens = {
{ Smb_1, SMB1_VERSION_STRING },
{ Smb_21, SMB21_VERSION_STRING },
{ Smb_30, SMB30_VERSION_STRING },
};
static int ip_connect(struct TCP_Server_Info *server);
......@@ -819,6 +815,10 @@ standard_receive3(struct TCP_Server_Info *server, struct mid_q_entry *mid)
cifs_dump_mem("Bad SMB: ", buf,
min_t(unsigned int, server->total_read, 48));
if (server->ops->is_status_pending &&
server->ops->is_status_pending(buf, server, length))
return -1;
if (!mid)
return length;
......@@ -1075,6 +1075,10 @@ cifs_parse_smb_version(char *value, struct smb_vol *vol)
vol->ops = &smb21_operations;
vol->vals = &smb21_values;
break;
case Smb_30:
vol->ops = &smb21_operations; /* currently identical with 2.1 */
vol->vals = &smb30_values;
break;
#endif
default:
cERROR(1, "Unknown vers= option specified: %s", value);
......@@ -1101,8 +1105,6 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
char *string = NULL;
char *tmp_end, *value;
char delim;
bool cache_specified = false;
static bool cache_warned = false;
separator[0] = ',';
separator[1] = 0;
......@@ -1134,6 +1136,9 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
/* default to using server inode numbers where available */
vol->server_ino = 1;
/* default is to use strict cifs caching semantics */
vol->strict_io = true;
vol->actimeo = CIFS_DEF_ACTIMEO;
/* FIXME: add autonegotiation -- for now, SMB1 is default */
......@@ -1317,22 +1322,6 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
*/
vol->seal = 1;
break;
case Opt_direct:
cache_specified = true;
vol->direct_io = true;
vol->strict_io = false;
cERROR(1, "The \"directio\" option will be removed in "
"3.7. Please switch to the \"cache=none\" "
"option.");
break;
case Opt_strictcache:
cache_specified = true;
vol->direct_io = false;
vol->strict_io = true;
cERROR(1, "The \"strictcache\" option will be removed "
"in 3.7. Please switch to the \"cache=strict\" "
"option.");
break;
case Opt_noac:
printk(KERN_WARNING "CIFS: Mount option noac not "
"supported. Instead set "
......@@ -1676,8 +1665,13 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
if (string == NULL)
goto out_nomem;
if (strnicmp(string, "TCP_NODELAY", 11) == 0)
if (strnicmp(string, "TCP_NODELAY", 11) == 0) {
printk(KERN_WARNING "CIFS: the "
"sockopt=TCP_NODELAY option has been "
"deprecated and will be removed "
"in 3.9\n");
vol->sockopt_tcp_nodelay = 1;
}
break;
case Opt_netbiosname:
string = match_strdup(args);
......@@ -1762,7 +1756,6 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
goto cifs_parse_mount_err;
break;
case Opt_cache:
cache_specified = true;
string = match_strdup(args);
if (string == NULL)
goto out_nomem;
......@@ -1813,14 +1806,6 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
printk(KERN_NOTICE "CIFS: ignoring forcegid mount option "
"specified with no gid= option.\n");
/* FIXME: remove this block in 3.7 */
if (!cache_specified && !cache_warned) {
cache_warned = true;
printk(KERN_NOTICE "CIFS: no cache= option specified, using "
"\"cache=loose\". This default will change "
"to \"cache=strict\" in 3.7.\n");
}
kfree(mountdata_copy);
return 0;
......@@ -2636,6 +2621,7 @@ cifs_get_tcon(struct cifs_ses *ses, struct smb_vol *volume_info)
tcon->retry = volume_info->retry;
tcon->nocase = volume_info->nocase;
tcon->local_lease = volume_info->local_lease;
INIT_LIST_HEAD(&tcon->pending_opens);
spin_lock(&cifs_tcp_ses_lock);
list_add(&tcon->tcon_list, &ses->tcon_list);
......@@ -3261,146 +3247,6 @@ void cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
"mount option supported");
}
/*
* When the server supports very large reads and writes via POSIX extensions,
* we can allow up to 2^24-1, minus the size of a READ/WRITE_AND_X header, not
* including the RFC1001 length.
*
* Note that this might make for "interesting" allocation problems during
* writeback however as we have to allocate an array of pointers for the
* pages. A 16M write means ~32kb page array with PAGE_CACHE_SIZE == 4096.
*
* For reads, there is a similar problem as we need to allocate an array
* of kvecs to handle the receive, though that should only need to be done
* once.
*/
#define CIFS_MAX_WSIZE ((1<<24) - 1 - sizeof(WRITE_REQ) + 4)
#define CIFS_MAX_RSIZE ((1<<24) - sizeof(READ_RSP) + 4)
/*
* When the server doesn't allow large posix writes, only allow a rsize/wsize
* of 2^17-1 minus the size of the call header. That allows for a read or
* write up to the maximum size described by RFC1002.
*/
#define CIFS_MAX_RFC1002_WSIZE ((1<<17) - 1 - sizeof(WRITE_REQ) + 4)
#define CIFS_MAX_RFC1002_RSIZE ((1<<17) - 1 - sizeof(READ_RSP) + 4)
/*
* The default wsize is 1M. find_get_pages seems to return a maximum of 256
* pages in a single call. With PAGE_CACHE_SIZE == 4k, this means we can fill
* a single wsize request with a single call.
*/
#define CIFS_DEFAULT_IOSIZE (1024 * 1024)
/*
* Windows only supports a max of 60kb reads and 65535 byte writes. Default to
* those values when posix extensions aren't in force. In actuality here, we
* use 65536 to allow for a write that is a multiple of 4k. Most servers seem
* to be ok with the extra byte even though Windows doesn't send writes that
* are that large.
*
* Citation:
*
* http://blogs.msdn.com/b/openspecification/archive/2009/04/10/smb-maximum-transmit-buffer-size-and-performance-tuning.aspx
*/
#define CIFS_DEFAULT_NON_POSIX_RSIZE (60 * 1024)
#define CIFS_DEFAULT_NON_POSIX_WSIZE (65536)
/*
* On hosts with high memory, we can't currently support wsize/rsize that are
* larger than we can kmap at once. Cap the rsize/wsize at
* LAST_PKMAP * PAGE_SIZE. We'll never be able to fill a read or write request
* larger than that anyway.
*/
#ifdef CONFIG_HIGHMEM
#define CIFS_KMAP_SIZE_LIMIT (LAST_PKMAP * PAGE_CACHE_SIZE)
#else /* CONFIG_HIGHMEM */
#define CIFS_KMAP_SIZE_LIMIT (1<<24)
#endif /* CONFIG_HIGHMEM */
static unsigned int
cifs_negotiate_wsize(struct cifs_tcon *tcon, struct smb_vol *pvolume_info)
{
__u64 unix_cap = le64_to_cpu(tcon->fsUnixInfo.Capability);
struct TCP_Server_Info *server = tcon->ses->server;
unsigned int wsize;
/* start with specified wsize, or default */
if (pvolume_info->wsize)
wsize = pvolume_info->wsize;
else if (tcon->unix_ext && (unix_cap & CIFS_UNIX_LARGE_WRITE_CAP))
wsize = CIFS_DEFAULT_IOSIZE;
else
wsize = CIFS_DEFAULT_NON_POSIX_WSIZE;
/* can server support 24-bit write sizes? (via UNIX extensions) */
if (!tcon->unix_ext || !(unix_cap & CIFS_UNIX_LARGE_WRITE_CAP))
wsize = min_t(unsigned int, wsize, CIFS_MAX_RFC1002_WSIZE);
/*
* no CAP_LARGE_WRITE_X or is signing enabled without CAP_UNIX set?
* Limit it to max buffer offered by the server, minus the size of the
* WRITEX header, not including the 4 byte RFC1001 length.
*/
if (!(server->capabilities & CAP_LARGE_WRITE_X) ||
(!(server->capabilities & CAP_UNIX) &&
(server->sec_mode & (SECMODE_SIGN_ENABLED|SECMODE_SIGN_REQUIRED))))
wsize = min_t(unsigned int, wsize,
server->maxBuf - sizeof(WRITE_REQ) + 4);
/* limit to the amount that we can kmap at once */
wsize = min_t(unsigned int, wsize, CIFS_KMAP_SIZE_LIMIT);
/* hard limit of CIFS_MAX_WSIZE */
wsize = min_t(unsigned int, wsize, CIFS_MAX_WSIZE);
return wsize;
}
static unsigned int
cifs_negotiate_rsize(struct cifs_tcon *tcon, struct smb_vol *pvolume_info)
{
__u64 unix_cap = le64_to_cpu(tcon->fsUnixInfo.Capability);
struct TCP_Server_Info *server = tcon->ses->server;
unsigned int rsize, defsize;
/*
* Set default value...
*
* HACK alert! Ancient servers have very small buffers. Even though
* MS-CIFS indicates that servers are only limited by the client's
* bufsize for reads, testing against win98se shows that it throws
* INVALID_PARAMETER errors if you try to request too large a read.
* OS/2 just sends back short reads.
*
* If the server doesn't advertise CAP_LARGE_READ_X, then assume that
* it can't handle a read request larger than its MaxBufferSize either.
*/
if (tcon->unix_ext && (unix_cap & CIFS_UNIX_LARGE_READ_CAP))
defsize = CIFS_DEFAULT_IOSIZE;
else if (server->capabilities & CAP_LARGE_READ_X)
defsize = CIFS_DEFAULT_NON_POSIX_RSIZE;
else
defsize = server->maxBuf - sizeof(READ_RSP);
rsize = pvolume_info->rsize ? pvolume_info->rsize : defsize;
/*
* no CAP_LARGE_READ_X? Then MS-CIFS states that we must limit this to
* the client's MaxBufferSize.
*/
if (!(server->capabilities & CAP_LARGE_READ_X))
rsize = min_t(unsigned int, CIFSMaxBufSize, rsize);
/* limit to the amount that we can kmap at once */
rsize = min_t(unsigned int, rsize, CIFS_KMAP_SIZE_LIMIT);
/* hard limit of CIFS_MAX_RSIZE */
rsize = min_t(unsigned int, rsize, CIFS_MAX_RSIZE);
return rsize;
}
static void
cleanup_volume_info_contents(struct smb_vol *volume_info)
{
......@@ -3651,8 +3497,8 @@ cifs_mount(struct cifs_sb_info *cifs_sb, struct smb_vol *volume_info)
if (!tcon->ipc && server->ops->qfs_tcon)
server->ops->qfs_tcon(xid, tcon);
cifs_sb->wsize = cifs_negotiate_wsize(tcon, volume_info);
cifs_sb->rsize = cifs_negotiate_rsize(tcon, volume_info);
cifs_sb->wsize = server->ops->negotiate_wsize(tcon, volume_info);
cifs_sb->rsize = server->ops->negotiate_rsize(tcon, volume_info);
/* tune readahead according to rsize */
cifs_sb->bdi.ra_pages = cifs_sb->rsize / PAGE_CACHE_SIZE;
......
fs/cifs/dir.c
浏览文件 @ 797b9e5a
......@@ -160,17 +160,18 @@ check_name(struct dentry *direntry)
static int
cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
struct tcon_link *tlink, unsigned oflags, umode_t mode,
__u32 *oplock, __u16 *fileHandle, int *created)
__u32 *oplock, struct cifs_fid *fid, int *created)
{
int rc = -ENOENT;
int create_options = CREATE_NOT_DIR;
int desiredAccess;
int desired_access;
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
struct cifs_tcon *tcon = tlink_tcon(tlink);
char *full_path = NULL;
FILE_ALL_INFO *buf = NULL;
struct inode *newinode = NULL;
int disposition;
struct TCP_Server_Info *server = tcon->ses->server;
*oplock = 0;
if (tcon->ses->server->oplocks)
......@@ -185,8 +186,8 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
if (tcon->unix_ext && cap_unix(tcon->ses) && !tcon->broken_posix_open &&
(CIFS_UNIX_POSIX_PATH_OPS_CAP &
le64_to_cpu(tcon->fsUnixInfo.Capability))) {
rc = cifs_posix_open(full_path, &newinode,
inode->i_sb, mode, oflags, oplock, fileHandle, xid);
rc = cifs_posix_open(full_path, &newinode, inode->i_sb, mode,
oflags, oplock, &fid->netfid, xid);
switch (rc) {
case 0:
if (newinode == NULL) {
......@@ -202,7 +203,7 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
* close it and proceed as if it were a normal
* lookup.
*/
CIFSSMBClose(xid, tcon, *fileHandle);
CIFSSMBClose(xid, tcon, fid->netfid);
goto cifs_create_get_file_info;
}
/* success, no need to query */
......@@ -244,11 +245,11 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
*/
}
desiredAccess = 0;
desired_access = 0;
if (OPEN_FMODE(oflags) & FMODE_READ)
desiredAccess |= GENERIC_READ; /* is this too little? */
desired_access |= GENERIC_READ; /* is this too little? */
if (OPEN_FMODE(oflags) & FMODE_WRITE)
desiredAccess |= GENERIC_WRITE;
desired_access |= GENERIC_WRITE;
disposition = FILE_OVERWRITE_IF;
if ((oflags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL))
......@@ -260,8 +261,15 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
else
cFYI(1, "Create flag not set in create function");
/* BB add processing to set equivalent of mode - e.g. via CreateX with
ACLs */
/*
* BB add processing to set equivalent of mode - e.g. via CreateX with
* ACLs
*/
if (!server->ops->open) {
rc = -ENOSYS;
goto out;
}
buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
if (buf == NULL) {
......@@ -279,28 +287,18 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
if (backup_cred(cifs_sb))
create_options |= CREATE_OPEN_BACKUP_INTENT;
if (tcon->ses->capabilities & CAP_NT_SMBS)
rc = CIFSSMBOpen(xid, tcon, full_path, disposition,
desiredAccess, create_options,
fileHandle, oplock, buf, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
else
rc = -EIO; /* no NT SMB support fall into legacy open below */
if (rc == -EIO) {
/* old server, retry the open legacy style */
rc = SMBLegacyOpen(xid, tcon, full_path, disposition,
desiredAccess, create_options,
fileHandle, oplock, buf, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
}
rc = server->ops->open(xid, tcon, full_path, disposition,
desired_access, create_options, fid, oplock,
buf, cifs_sb);
if (rc) {
cFYI(1, "cifs_create returned 0x%x", rc);
goto out;
}
/* If Open reported that we actually created a file
then we now have to set the mode if possible */
/*
* If Open reported that we actually created a file then we now have to
* set the mode if possible.
*/
if ((tcon->unix_ext) && (*oplock & CIFS_CREATE_ACTION)) {
struct cifs_unix_set_info_args args = {
.mode = mode,
......@@ -321,11 +319,13 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
args.uid = NO_CHANGE_64;
args.gid = NO_CHANGE_64;
}
CIFSSMBUnixSetFileInfo(xid, tcon, &args, *fileHandle,
current->tgid);
CIFSSMBUnixSetFileInfo(xid, tcon, &args, fid->netfid,
current->tgid);
} else {
/* BB implement mode setting via Windows security
descriptors e.g. */
/*
* BB implement mode setting via Windows security
* descriptors e.g.
*/
/* CIFSSMBWinSetPerms(xid,tcon,path,mode,-1,-1,nls);*/
/* Could set r/o dos attribute if mode & 0222 == 0 */
......@@ -334,12 +334,14 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
cifs_create_get_file_info:
/* server might mask mode so we have to query for it */
if (tcon->unix_ext)
rc = cifs_get_inode_info_unix(&newinode, full_path,
inode->i_sb, xid);
rc = cifs_get_inode_info_unix(&newinode, full_path, inode->i_sb,
xid);
else {
rc = cifs_get_inode_info(&newinode, full_path, buf,
inode->i_sb, xid, fileHandle);
rc = cifs_get_inode_info(&newinode, full_path, buf, inode->i_sb,
xid, &fid->netfid);
if (newinode) {
if (server->ops->set_lease_key)
server->ops->set_lease_key(newinode, fid);
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM)
newinode->i_mode = mode;
if ((*oplock & CIFS_CREATE_ACTION) &&
......@@ -356,7 +358,8 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
cifs_create_set_dentry:
if (rc != 0) {
cFYI(1, "Create worked, get_inode_info failed rc = %d", rc);
CIFSSMBClose(xid, tcon, *fileHandle);
if (server->ops->close)
server->ops->close(xid, tcon, fid);
goto out;
}
d_drop(direntry);
......@@ -377,11 +380,14 @@ cifs_atomic_open(struct inode *inode, struct dentry *direntry,
unsigned int xid;
struct tcon_link *tlink;
struct cifs_tcon *tcon;
__u16 fileHandle;
struct TCP_Server_Info *server;
struct cifs_fid fid;
struct cifs_pending_open open;
__u32 oplock;
struct cifsFileInfo *pfile_info;
struct cifsFileInfo *file_info;
/* Posix open is only called (at lookup time) for file create now. For
/*
* Posix open is only called (at lookup time) for file create now. For
* opens (rather than creates), because we do not know if it is a file
* or directory yet, and current Samba no longer allows us to do posix
* open on dirs, we could end up wasting an open call on what turns out
......@@ -413,22 +419,34 @@ cifs_atomic_open(struct inode *inode, struct dentry *direntry,
goto out_free_xid;
tcon = tlink_tcon(tlink);
server = tcon->ses->server;
if (server->ops->new_lease_key)
server->ops->new_lease_key(&fid);
cifs_add_pending_open(&fid, tlink, &open);
rc = cifs_do_create(inode, direntry, xid, tlink, oflags, mode,
&oplock, &fileHandle, opened);
&oplock, &fid, opened);
if (rc)
if (rc) {
cifs_del_pending_open(&open);
goto out;
}
rc = finish_open(file, direntry, generic_file_open, opened);
if (rc) {
CIFSSMBClose(xid, tcon, fileHandle);
if (server->ops->close)
server->ops->close(xid, tcon, &fid);
cifs_del_pending_open(&open);
goto out;
}
pfile_info = cifs_new_fileinfo(fileHandle, file, tlink, oplock);
if (pfile_info == NULL) {
CIFSSMBClose(xid, tcon, fileHandle);
file_info = cifs_new_fileinfo(&fid, file, tlink, oplock);
if (file_info == NULL) {
if (server->ops->close)
server->ops->close(xid, tcon, &fid);
cifs_del_pending_open(&open);
rc = -ENOMEM;
}
......@@ -453,7 +471,9 @@ int cifs_create(struct inode *inode, struct dentry *direntry, umode_t mode,
*/
unsigned oflags = O_EXCL | O_CREAT | O_RDWR;
struct tcon_link *tlink;
__u16 fileHandle;
struct cifs_tcon *tcon;
struct TCP_Server_Info *server;
struct cifs_fid fid;
__u32 oplock;
int created = FILE_CREATED;
......@@ -465,10 +485,16 @@ int cifs_create(struct inode *inode, struct dentry *direntry, umode_t mode,
if (IS_ERR(tlink))
goto out_free_xid;
tcon = tlink_tcon(tlink);
server = tcon->ses->server;
if (server->ops->new_lease_key)
server->ops->new_lease_key(&fid);
rc = cifs_do_create(inode, direntry, xid, tlink, oflags, mode,
&oplock, &fileHandle, &created);
if (!rc)
CIFSSMBClose(xid, tlink_tcon(tlink), fileHandle);
&oplock, &fid, &created);
if (!rc && server->ops->close)
server->ops->close(xid, tcon, &fid);
cifs_put_tlink(tlink);
out_free_xid:
......
fs/cifs/file.c
浏览文件 @ 797b9e5a
此差异已折叠。
fs/cifs/inode.c
浏览文件 @ 797b9e5a
此差异已折叠。
fs/cifs/ioctl.c
浏览文件 @ 797b9e5a
......@@ -28,8 +28,6 @@
#include "cifs_debug.h"
#include "cifsfs.h"
#define CIFS_IOC_CHECKUMOUNT _IO(0xCF, 2)
long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
{
struct inode *inode = filep->f_dentry->d_inode;
......@@ -51,23 +49,6 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
cifs_sb = CIFS_SB(inode->i_sb);
switch (command) {
static bool warned = false;
case CIFS_IOC_CHECKUMOUNT:
if (!warned) {
warned = true;
cERROR(1, "the CIFS_IOC_CHECKMOUNT ioctl will "
"be deprecated in 3.7. Please "
"migrate away from the use of "
"umount.cifs");
}
cFYI(1, "User unmount attempted");
if (cifs_sb->mnt_uid == current_uid())
rc = 0;
else {
rc = -EACCES;
cFYI(1, "uids do not match");
}
break;
#ifdef CONFIG_CIFS_POSIX
case FS_IOC_GETFLAGS:
if (pSMBFile == NULL)
......@@ -75,8 +56,9 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
tcon = tlink_tcon(pSMBFile->tlink);
caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
if (CIFS_UNIX_EXTATTR_CAP & caps) {
rc = CIFSGetExtAttr(xid, tcon, pSMBFile->netfid,
&ExtAttrBits, &ExtAttrMask);
rc = CIFSGetExtAttr(xid, tcon,
pSMBFile->fid.netfid,
&ExtAttrBits, &ExtAttrMask);
if (rc == 0)
rc = put_user(ExtAttrBits &
FS_FL_USER_VISIBLE,
......@@ -94,8 +76,12 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
rc = -EFAULT;
break;
}
/* rc= CIFSGetExtAttr(xid,tcon,pSMBFile->netfid,
extAttrBits, &ExtAttrMask);*/
/*
* rc = CIFSGetExtAttr(xid, tcon,
* pSMBFile->fid.netfid,
* extAttrBits,
* &ExtAttrMask);
*/
}
cFYI(1, "set flags not implemented yet");
break;
......
fs/cifs/link.c
浏览文件 @ 797b9e5a
此差异已折叠。
fs/cifs/misc.c
浏览文件 @ 797b9e5a
......@@ -466,7 +466,7 @@ is_valid_oplock_break(char *buffer, struct TCP_Server_Info *srv)
list_for_each(tmp2, &tcon->openFileList) {
netfile = list_entry(tmp2, struct cifsFileInfo,
tlist);
if (pSMB->Fid != netfile->netfid)
if (pSMB->Fid != netfile->fid.netfid)
continue;
cFYI(1, "file id match, oplock break");
......@@ -579,3 +579,33 @@ backup_cred(struct cifs_sb_info *cifs_sb)
return false;
}
void
cifs_del_pending_open(struct cifs_pending_open *open)
{
spin_lock(&cifs_file_list_lock);
list_del(&open->olist);
spin_unlock(&cifs_file_list_lock);
}
void
cifs_add_pending_open_locked(struct cifs_fid *fid, struct tcon_link *tlink,
struct cifs_pending_open *open)
{
#ifdef CONFIG_CIFS_SMB2
memcpy(open->lease_key, fid->lease_key, SMB2_LEASE_KEY_SIZE);
#endif
open->oplock = CIFS_OPLOCK_NO_CHANGE;
open->tlink = tlink;
fid->pending_open = open;
list_add_tail(&open->olist, &tlink_tcon(tlink)->pending_opens);
}
void
cifs_add_pending_open(struct cifs_fid *fid, struct tcon_link *tlink,
struct cifs_pending_open *open)
{
spin_lock(&cifs_file_list_lock);
cifs_add_pending_open_locked(fid, tlink, open);
spin_unlock(&cifs_file_list_lock);
}
fs/cifs/netmisc.c
浏览文件 @ 797b9e5a
......@@ -110,7 +110,7 @@ static const struct smb_to_posix_error mapping_table_ERRSRV[] = {
{ERRnoroom, -ENOSPC},
{ERRrmuns, -EUSERS},
{ERRtimeout, -ETIME},
{ERRnoresource, -ENOBUFS},
{ERRnoresource, -EREMOTEIO},
{ERRtoomanyuids, -EUSERS},
{ERRbaduid, -EACCES},
{ERRusempx, -EIO},
......@@ -412,7 +412,7 @@ static const struct {
from NT_STATUS_INSUFFICIENT_RESOURCES to
NT_STATUS_INSUFF_SERVER_RESOURCES during the session setup } */
{
ERRDOS, ERRnomem, NT_STATUS_INSUFFICIENT_RESOURCES}, {
ERRDOS, ERRnoresource, NT_STATUS_INSUFFICIENT_RESOURCES}, {
ERRDOS, ERRbadpath, NT_STATUS_DFS_EXIT_PATH_FOUND}, {
ERRDOS, 23, NT_STATUS_DEVICE_DATA_ERROR}, {
ERRHRD, ERRgeneral, NT_STATUS_DEVICE_NOT_CONNECTED}, {
......@@ -682,7 +682,7 @@ static const struct {
ERRHRD, ERRgeneral, NT_STATUS_NO_USER_SESSION_KEY}, {
ERRDOS, 59, NT_STATUS_USER_SESSION_DELETED}, {
ERRHRD, ERRgeneral, NT_STATUS_RESOURCE_LANG_NOT_FOUND}, {
ERRDOS, ERRnomem, NT_STATUS_INSUFF_SERVER_RESOURCES}, {
ERRDOS, ERRnoresource, NT_STATUS_INSUFF_SERVER_RESOURCES}, {
ERRHRD, ERRgeneral, NT_STATUS_INVALID_BUFFER_SIZE}, {
ERRHRD, ERRgeneral, NT_STATUS_INVALID_ADDRESS_COMPONENT}, {
ERRHRD, ERRgeneral, NT_STATUS_INVALID_ADDRESS_WILDCARD}, {
......@@ -913,8 +913,9 @@ map_smb_to_linux_error(char *buf, bool logErr)
* portion, the number of word parameters and the data portion of the message
*/
unsigned int
smbCalcSize(struct smb_hdr *ptr)
smbCalcSize(void *buf)
{
struct smb_hdr *ptr = (struct smb_hdr *)buf;
return (sizeof(struct smb_hdr) + (2 * ptr->WordCount) +
2 /* size of the bcc field */ + get_bcc(ptr));
}
......
fs/cifs/readdir.c
浏览文件 @ 797b9e5a
此差异已折叠。
fs/cifs/sess.c
浏览文件 @ 797b9e5a
......@@ -876,7 +876,8 @@ CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
pSMB = (SESSION_SETUP_ANDX *)iov[0].iov_base;
smb_buf = (struct smb_hdr *)iov[0].iov_base;
if ((type == RawNTLMSSP) && (smb_buf->Status.CifsError ==
if ((type == RawNTLMSSP) && (resp_buf_type != CIFS_NO_BUFFER) &&
(smb_buf->Status.CifsError ==
cpu_to_le32(NT_STATUS_MORE_PROCESSING_REQUIRED))) {
if (phase != NtLmNegotiate) {
cERROR(1, "Unexpected more processing error");
......
fs/cifs/smb1ops.c
浏览文件 @ 797b9e5a
此差异已折叠。
fs/cifs/smb2file.c 0 → 100644
浏览文件 @ 797b9e5a
此差异已折叠。
fs/cifs/smb2glob.h
浏览文件 @ 797b9e5a
......@@ -23,6 +23,8 @@
#ifndef _SMB2_GLOB_H
#define _SMB2_GLOB_H
#define SMB2_MAGIC_NUMBER 0xFE534D42
/*
*****************************************************************
* Constants go here
......@@ -40,5 +42,17 @@
#define SMB2_OP_MKDIR 5
#define SMB2_OP_RENAME 6
#define SMB2_OP_DELETE 7
#define SMB2_OP_HARDLINK 8
#define SMB2_OP_SET_EOF 9
/* Used when constructing chained read requests. */
#define CHAINED_REQUEST 1
#define START_OF_CHAIN 2
#define END_OF_CHAIN 4
#define RELATED_REQUEST 8
#define SMB2_SIGNATURE_SIZE (16)
#define SMB2_NTLMV2_SESSKEY_SIZE (16)
#define SMB2_HMACSHA256_SIZE (32)
#endif /* _SMB2_GLOB_H */
fs/cifs/smb2inode.c
浏览文件 @ 797b9e5a
此差异已折叠。
fs/cifs/smb2maperror.c
浏览文件 @ 797b9e5a
此差异已折叠。
fs/cifs/smb2misc.c
浏览文件 @ 797b9e5a
此差异已折叠。
fs/cifs/smb2ops.c
浏览文件 @ 797b9e5a
此差异已折叠。
fs/cifs/smb2pdu.c
浏览文件 @ 797b9e5a
此差异已折叠。
fs/cifs/smb2pdu.h
浏览文件 @ 797b9e5a
此差异已折叠。
fs/cifs/smb2proto.h
浏览文件 @ 797b9e5a
此差异已折叠。
fs/cifs/smb2transport.c
浏览文件 @ 797b9e5a
此差异已折叠。
fs/cifs/transport.c
浏览文件 @ 797b9e5a
此差异已折叠。
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