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Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6 

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: (27 commits)
  [CIFS] Missing flags2 for DFS
  [CIFS] Workaround incomplete byte length returned by some
  [CIFS] cifs Kconfig: don't select CONNECTOR
  [CIFS] Level 1 QPathInfo needed for proper OS2 support
  [CIFS] fix typo in previous patch
  [CIFS] Fix old DOS time conversion to handle timezone
  [CIFS] Do not need to adjust for Jan/Feb for leap day
  [CIFS] Fix leaps year calculation for years after 2100
  [CIFS] readdir (ffirst) enablement of accurate timestamps from legacy servers
  [CIFS] Fix compiler warning with previous patch
  [CIFS] Fix typo
  [CIFS] Allow for 15 minute TZs (e.g. Nepal) and be more explicit about
  [CIFS] Fix readdir of large directories for backlevel servers
  [CIFS] Allow LANMAN21 support even in both POSIX non-POSIX path
  [CIFS] Make use of newer QFSInfo dependent on capability bit instead of
  [CIFS] Do not send newer QFSInfo to legacy servers which can not support it
  [CIFS] Fix typo in name of new cifs_show_stats
  [CIFS] Rename server time zone field
  [CIFS] Handle legacy servers which return undefined time zone
  [CIFS] CIFS support for /proc/<pid>/mountstats part 1
  ...

Manual conflict resolution in fs/cifs/connect.c
This commit is contained in:
Linus Torvalds 2006-10-13 08:09:29 -07:00
parent 1baaf0b424 1a4e15a04e
commit 12e36b2f41
20 changed files with 312 additions and 98 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/Kconfig
View File

@ -1986,7 +1986,7 @@ config CIFS_EXPERIMENTAL
config CIFS_UPCALL
bool "Kerberos/SPNEGO advanced session setup (EXPERIMENTAL)"
depends on CIFS_EXPERIMENTAL
select CONNECTOR
depends on CONNECTOR
help
Enables an upcall mechanism for CIFS which will be used to contact
userspace helper utilities to provide SPNEGO packaged Kerberos

4
fs/cifs/cifsacl.h
View File

@ -31,8 +31,8 @@ struct cifs_sid {
} __attribute__((packed));
/* everyone */
extern const struct cifs_sid sid_everyone;
/* extern const struct cifs_sid sid_everyone;*/
/* group users */
extern const struct cifs_sid sid_user;
/* extern const struct cifs_sid sid_user;*/
#endif /* _CIFSACL_H */

2
fs/cifs/cifsencrypt.h
View File

@ -27,8 +27,6 @@ extern void mdfour(unsigned char *out, unsigned char *in, int n);
/* smbdes.c */
extern void E_P16(unsigned char *p14, unsigned char *p16);
extern void E_P24(unsigned char *p21, unsigned char *c8, unsigned char *p24);
extern void D_P16(unsigned char *p14, unsigned char *in, unsigned char *out);
extern void E_old_pw_hash(unsigned char *, unsigned char *, unsigned char *);

27
fs/cifs/cifsfs.c
View File

@ -63,6 +63,7 @@ extern struct task_struct * oplockThread; /* remove sparse warning */
struct task_struct * oplockThread = NULL;
extern struct task_struct * dnotifyThread; /* remove sparse warning */
struct task_struct * dnotifyThread = NULL;
static struct super_operations cifs_super_ops;
unsigned int CIFSMaxBufSize = CIFS_MAX_MSGSIZE;
module_param(CIFSMaxBufSize, int, 0);
MODULE_PARM_DESC(CIFSMaxBufSize,"Network buffer size (not including header). Default: 16384 Range: 8192 to 130048");
@ -198,10 +199,12 @@ cifs_statfs(struct dentry *dentry, struct kstatfs *buf)
/* Only need to call the old QFSInfo if failed
on newer one */
if(rc)
rc = CIFSSMBQFSInfo(xid, pTcon, buf);
if(pTcon->ses->capabilities & CAP_NT_SMBS)
rc = CIFSSMBQFSInfo(xid, pTcon, buf); /* not supported by OS2 */
/* Old Windows servers do not support level 103, retry with level
one if old server failed the previous call */
/* 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, pTcon, buf);
/*
@ -435,13 +438,21 @@ static void cifs_umount_begin(struct vfsmount * vfsmnt, int flags)
return;
}
#ifdef CONFIG_CIFS_STATS2
static int cifs_show_stats(struct seq_file *s, struct vfsmount *mnt)
{
/* BB FIXME */
return 0;
}
#endif
static int cifs_remount(struct super_block *sb, int *flags, char *data)
{
*flags |= MS_NODIRATIME;
return 0;
}
struct super_operations cifs_super_ops = {
static struct super_operations cifs_super_ops = {
.read_inode = cifs_read_inode,
.put_super = cifs_put_super,
.statfs = cifs_statfs,
@ -454,6 +465,9 @@ struct super_operations cifs_super_ops = {
.show_options = cifs_show_options,
.umount_begin = cifs_umount_begin,
.remount_fs = cifs_remount,
#ifdef CONFIG_CIFS_STATS2
.show_stats = cifs_show_stats,
#endif
};
static int
@ -495,7 +509,7 @@ static ssize_t cifs_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
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) {
if (origin == SEEK_END) {
int retval = cifs_revalidate(file->f_dentry);
if (retval < 0)
return (loff_t)retval;
@ -903,7 +917,7 @@ init_cifs(void)
#ifdef CONFIG_PROC_FS
cifs_proc_init();
#endif
INIT_LIST_HEAD(&GlobalServerList); /* BB not implemented yet */
/* INIT_LIST_HEAD(&GlobalServerList);*/ /* BB not implemented yet */
INIT_LIST_HEAD(&GlobalSMBSessionList);
INIT_LIST_HEAD(&GlobalTreeConnectionList);
INIT_LIST_HEAD(&GlobalOplock_Q);
@ -931,6 +945,7 @@ init_cifs(void)
GlobalCurrentXid = 0;
GlobalTotalActiveXid = 0;
GlobalMaxActiveXid = 0;
memset(Local_System_Name, 0, 15);
rwlock_init(&GlobalSMBSeslock);
spin_lock_init(&GlobalMid_Lock);

2
fs/cifs/cifsfs.h
View File

@ -36,7 +36,7 @@ extern const struct address_space_operations cifs_addr_ops;
extern const struct address_space_operations cifs_addr_ops_smallbuf;
/* Functions related to super block operations */
extern struct super_operations cifs_super_ops;
/* extern struct super_operations cifs_super_ops;*/
extern void cifs_read_inode(struct inode *);
extern void cifs_delete_inode(struct inode *);
/* extern void cifs_write_inode(struct inode *); *//* BB not needed yet */

15
fs/cifs/cifsglob.h
View File

@ -153,7 +153,7 @@ struct TCP_Server_Info {
char sessid[4]; /* unique token id for this session */
/* (returned on Negotiate */
int capabilities; /* allow selective disabling of caps by smb sess */
__u16 timeZone;
int timeAdj; /* Adjust for difference in server time zone in sec */
__u16 CurrentMid; /* multiplex id - rotating counter */
char cryptKey[CIFS_CRYPTO_KEY_SIZE];
/* 16th byte of RFC1001 workstation name is always null */
@ -203,9 +203,14 @@ struct cifsSesInfo {
char * domainName;
char * password;
};
/* session flags */
/* no more than one of the following three session flags may be set */
#define CIFS_SES_NT4 1
#define CIFS_SES_OS2 2
#define CIFS_SES_W9X 4
/* following flag is set for old servers such as OS2 (and Win95?)
which do not negotiate NTLM or POSIX dialects, but instead
negotiate one of the older LANMAN dialects */
#define CIFS_SES_LANMAN 8
/*
* there is one of these for each connection to a resource on a particular
* session
@ -512,7 +517,8 @@ require use of the stronger protocol */
* This list helps improve performance and eliminate the messages indicating
* that we had a communications error talking to the server in this list.
*/
GLOBAL_EXTERN struct servers_not_supported *NotSuppList; /*@z4a */
/* Feature not supported */
/* GLOBAL_EXTERN struct servers_not_supported *NotSuppList; */
/*
* The following is a hash table of all the users we know about.
@ -568,7 +574,6 @@ GLOBAL_EXTERN unsigned int lookupCacheEnabled;
GLOBAL_EXTERN unsigned int extended_security; /* if on, session setup sent
with more secure ntlmssp2 challenge/resp */
GLOBAL_EXTERN unsigned int sign_CIFS_PDUs; /* enable smb packet signing */
GLOBAL_EXTERN unsigned int secFlags;
GLOBAL_EXTERN unsigned int linuxExtEnabled;/*enable Linux/Unix CIFS extensions*/
GLOBAL_EXTERN unsigned int CIFSMaxBufSize; /* max size not including hdr */
GLOBAL_EXTERN unsigned int cifs_min_rcv; /* min size of big ntwrk buf pool */

12
fs/cifs/cifspdu.h
View File

@ -26,7 +26,8 @@
#ifdef CONFIG_CIFS_WEAK_PW_HASH
#define LANMAN_PROT 0
#define CIFS_PROT 1
#define LANMAN2_PROT 1
#define CIFS_PROT 2
#else
#define CIFS_PROT 0
#endif
@ -408,6 +409,8 @@ typedef struct negotiate_req {
/* Dialect index is 13 for LANMAN */
#define MIN_TZ_ADJ (15 * 60) /* minimum grid for timezones in seconds */
typedef struct lanman_neg_rsp {
struct smb_hdr hdr; /* wct = 13 */
__le16 DialectIndex;
@ -417,7 +420,10 @@ typedef struct lanman_neg_rsp {
__le16 MaxNumberVcs;
__le16 RawMode;
__le32 SessionKey;
__le32 ServerTime;
struct {
__le16 Time;
__le16 Date;
} __attribute__((packed)) SrvTime;
__le16 ServerTimeZone;
__le16 EncryptionKeyLength;
__le16 Reserved;
@ -674,7 +680,7 @@ typedef union smb_com_tree_disconnect { /* as an altetnative can use flag on
typedef struct smb_com_close_req {
struct smb_hdr hdr; /* wct = 3 */
__u16 FileID;
__u32 LastWriteTime; /* should be zero */
__u32 LastWriteTime; /* should be zero or -1 */
__u16 ByteCount; /* 0 */
} __attribute__((packed)) CLOSE_REQ;

12
fs/cifs/cifsproto.h
View File

@ -50,12 +50,12 @@ extern int SendReceive(const unsigned int /* xid */ , struct cifsSesInfo *,
extern int SendReceive2(const unsigned int /* xid */ , struct cifsSesInfo *,
struct kvec *, int /* nvec to send */,
int * /* type of buf returned */ , const int long_op);
extern int SendReceiveBlockingLock(const unsigned int /* xid */ , struct cifsTconInfo *,
extern int SendReceiveBlockingLock(const unsigned int /* xid */ ,
struct cifsTconInfo *,
struct smb_hdr * /* input */ ,
struct smb_hdr * /* out */ ,
int * /* bytes returned */);
extern int checkSMBhdr(struct smb_hdr *smb, __u16 mid);
extern int checkSMB(struct smb_hdr *smb, __u16 mid, int length);
extern int checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length);
extern int is_valid_oplock_break(struct smb_hdr *smb, struct TCP_Server_Info *);
extern int is_size_safe_to_change(struct cifsInodeInfo *);
extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *);
@ -80,6 +80,9 @@ extern struct oplock_q_entry * AllocOplockQEntry(struct inode *, u16,
extern void DeleteOplockQEntry(struct oplock_q_entry *);
extern struct timespec cifs_NTtimeToUnix(u64 /* utc nanoseconds since 1601 */ );
extern u64 cifs_UnixTimeToNT(struct timespec);
extern __le64 cnvrtDosCifsTm(__u16 date, __u16 time);
extern struct timespec cnvrtDosUnixTm(__u16 date, __u16 time);
extern int cifs_get_inode_info(struct inode **pinode,
const unsigned char *search_path,
FILE_ALL_INFO * pfile_info,
@ -116,6 +119,7 @@ extern int CIFSFindClose(const int, struct cifsTconInfo *tcon,
extern int CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon,
const unsigned char *searchName,
FILE_ALL_INFO * findData,
int legacy /* whether to use old info level */,
const struct nls_table *nls_codepage, int remap);
extern int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon,
const unsigned char *searchName,
@ -279,8 +283,6 @@ extern void sesInfoFree(struct cifsSesInfo *);
extern struct cifsTconInfo *tconInfoAlloc(void);
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 *);

96
fs/cifs/cifssmb.c
View File

@ -46,6 +46,7 @@ static struct {
} protocols[] = {
#ifdef CONFIG_CIFS_WEAK_PW_HASH
{LANMAN_PROT, "\2LM1.2X002"},
{LANMAN2_PROT, "\2LANMAN2.1"},
#endif /* weak password hashing for legacy clients */
{CIFS_PROT, "\2NT LM 0.12"},
{POSIX_PROT, "\2POSIX 2"},
@ -58,6 +59,7 @@ static struct {
} protocols[] = {
#ifdef CONFIG_CIFS_WEAK_PW_HASH
{LANMAN_PROT, "\2LM1.2X002"},
{LANMAN2_PROT, "\2LANMAN2.1"},
#endif /* weak password hashing for legacy clients */
{CIFS_PROT, "\2NT LM 0.12"},
{BAD_PROT, "\2"}
@ -67,13 +69,13 @@ static struct {
/* define the number of elements in the cifs dialect array */
#ifdef CONFIG_CIFS_POSIX
#ifdef CONFIG_CIFS_WEAK_PW_HASH
#define CIFS_NUM_PROT 3
#define CIFS_NUM_PROT 4
#else
#define CIFS_NUM_PROT 2
#endif /* CIFS_WEAK_PW_HASH */
#else /* not posix */
#ifdef CONFIG_CIFS_WEAK_PW_HASH
#define CIFS_NUM_PROT 2
#define CIFS_NUM_PROT 3
#else
#define CIFS_NUM_PROT 1
#endif /* CONFIG_CIFS_WEAK_PW_HASH */
@ -446,7 +448,9 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
goto neg_err_exit;
#ifdef CONFIG_CIFS_WEAK_PW_HASH
} else if((pSMBr->hdr.WordCount == 13)
&& (pSMBr->DialectIndex == LANMAN_PROT)) {
&& ((pSMBr->DialectIndex == LANMAN_PROT)
|| (pSMBr->DialectIndex == LANMAN2_PROT))) {
__s16 tmp;
struct lanman_neg_rsp * rsp = (struct lanman_neg_rsp *)pSMBr;
if((secFlags & CIFSSEC_MAY_LANMAN) ||
@ -472,12 +476,44 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
server->maxRw = 0;/* we do not need to use raw anyway */
server->capabilities = CAP_MPX_MODE;
}
server->timeZone = le16_to_cpu(rsp->ServerTimeZone);
tmp = (__s16)le16_to_cpu(rsp->ServerTimeZone);
if (tmp == -1) {
/* OS/2 often does not set timezone therefore
* we must use server time to calc time zone.
* Could deviate slightly from the right zone.
* Smallest defined timezone difference is 15 minutes
* (i.e. Nepal). Rounding up/down is done to match
* this requirement.
*/
int val, seconds, remain, result;
struct timespec ts, utc;
utc = CURRENT_TIME;
ts = cnvrtDosUnixTm(le16_to_cpu(rsp->SrvTime.Date),
le16_to_cpu(rsp->SrvTime.Time));
cFYI(1,("SrvTime: %d sec since 1970 (utc: %d) diff: %d",
(int)ts.tv_sec, (int)utc.tv_sec,
(int)(utc.tv_sec - ts.tv_sec)));
val = (int)(utc.tv_sec - ts.tv_sec);
seconds = val < 0 ? -val : val;
result = (seconds / MIN_TZ_ADJ) * MIN_TZ_ADJ;
remain = seconds % MIN_TZ_ADJ;
if(remain >= (MIN_TZ_ADJ / 2))
result += MIN_TZ_ADJ;
if(val < 0)
result = - result;
server->timeAdj = result;
} else {
server->timeAdj = (int)tmp;
server->timeAdj *= 60; /* also in seconds */
}
cFYI(1,("server->timeAdj: %d seconds", server->timeAdj));
/* BB get server time for time conversions and add
code to use it and timezone since this is not UTC */
if (rsp->EncryptionKeyLength == cpu_to_le16(CIFS_CRYPTO_KEY_SIZE)) {
if (rsp->EncryptionKeyLength ==
cpu_to_le16(CIFS_CRYPTO_KEY_SIZE)) {
memcpy(server->cryptKey, rsp->EncryptionKey,
CIFS_CRYPTO_KEY_SIZE);
} else if (server->secMode & SECMODE_PW_ENCRYPT) {
@ -531,7 +567,8 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
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);
server->timeAdj = (int)(__s16)le16_to_cpu(pSMBr->ServerTimeZone);
server->timeAdj *= 60;
if (pSMBr->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) {
memcpy(server->cryptKey, pSMBr->u.EncryptionKey,
CIFS_CRYPTO_KEY_SIZE);
@ -1617,7 +1654,7 @@ CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id)
pSMBr = (CLOSE_RSP *)pSMB; /* BB removeme BB */
pSMB->FileID = (__u16) smb_file_id;
pSMB->LastWriteTime = 0;
pSMB->LastWriteTime = 0xFFFFFFFF;
pSMB->ByteCount = 0;
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
@ -2773,9 +2810,11 @@ GetExtAttrOut:
/* security id for everyone */
const struct cifs_sid sid_everyone = {1, 1, {0, 0, 0, 0, 0, 0}, {0, 0, 0, 0}};
const static 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}};
const static 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)
@ -2856,7 +2895,6 @@ qsec_out:
return rc;
}
/* Legacy Query Path Information call for lookup to old servers such
as Win9x/WinME */
int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon,
@ -2898,7 +2936,16 @@ QInfRetry:
if (rc) {
cFYI(1, ("Send error in QueryInfo = %d", rc));
} else if (pFinfo) { /* decode response */
struct timespec ts;
__u32 time = le32_to_cpu(pSMBr->last_write_time);
/* BB FIXME - add time zone adjustment BB */
memset(pFinfo, 0, sizeof(FILE_ALL_INFO));
ts.tv_nsec = 0;
ts.tv_sec = time;
/* decode time fields */
pFinfo->ChangeTime = cifs_UnixTimeToNT(ts);
pFinfo->LastWriteTime = pFinfo->ChangeTime;
pFinfo->LastAccessTime = 0;
pFinfo->AllocationSize =
cpu_to_le64(le32_to_cpu(pSMBr->size));
pFinfo->EndOfFile = pFinfo->AllocationSize;
@ -2922,6 +2969,7 @@ int
CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon,
const unsigned char *searchName,
FILE_ALL_INFO * pFindData,
int legacy /* old style infolevel */,
const struct nls_table *nls_codepage, int remap)
{
/* level 263 SMB_QUERY_FILE_ALL_INFO */
@ -2970,7 +3018,10 @@ QPathInfoRetry:
byte_count = params + 1 /* pad */ ;
pSMB->TotalParameterCount = cpu_to_le16(params);
pSMB->ParameterCount = pSMB->TotalParameterCount;
pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO);
if(legacy)
pSMB->InformationLevel = cpu_to_le16(SMB_INFO_STANDARD);
else
pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO);
pSMB->Reserved4 = 0;
pSMB->hdr.smb_buf_length += byte_count;
pSMB->ByteCount = cpu_to_le16(byte_count);
@ -2982,13 +3033,24 @@ QPathInfoRetry:
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
if (rc || (pSMBr->ByteCount < 40))
if (rc) /* BB add auto retry on EOPNOTSUPP? */
rc = -EIO;
else if (!legacy && (pSMBr->ByteCount < 40))
rc = -EIO; /* bad smb */
else if(legacy && (pSMBr->ByteCount < 24))
rc = -EIO; /* 24 or 26 expected but we do not read last field */
else if (pFindData){
int size;
__u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
if(legacy) /* we do not read the last field, EAsize, fortunately
since it varies by subdialect and on Set vs. Get, is
two bytes or 4 bytes depending but we don't care here */
size = sizeof(FILE_INFO_STANDARD);
else
size = sizeof(FILE_ALL_INFO);
memcpy((char *) pFindData,
(char *) &pSMBr->hdr.Protocol +
data_offset, sizeof (FILE_ALL_INFO));
data_offset, size);
} else
rc = -ENOMEM;
}
@ -3613,6 +3675,14 @@ getDFSRetry:
strncpy(pSMB->RequestFileName, searchName, name_len);
}
if(ses->server) {
if(ses->server->secMode &
(SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
}
pSMB->hdr.Uid = ses->Suid;
params = 2 /* level */ + name_len /*includes null */ ;
pSMB->TotalDataCount = 0;
pSMB->DataCount = 0;

35
fs/cifs/connect.c
View File

@ -109,7 +109,7 @@ static int ipv6_connect(struct sockaddr_in6 *psin_server,
* wake up waiters on reconnection? - (not needed currently)
*/
int
static int
cifs_reconnect(struct TCP_Server_Info *server)
{
int rc = 0;
@ -771,13 +771,18 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol)
separator[0] = ',';
separator[1] = 0;
memset(vol->source_rfc1001_name,0x20,15);
for(i=0;i < strnlen(utsname()->nodename,15);i++) {
/* does not have to be a perfect mapping since the field is
informational, only used for servers that do not support
port 445 and it can be overridden at mount time */
vol->source_rfc1001_name[i] =
toupper(utsname()->nodename[i]);
if (Local_System_Name[0] != 0)
memcpy(vol->source_rfc1001_name, Local_System_Name,15);
else {
char *nodename = utsname()->nodename;
int n = strnlen(nodename,15);
memset(vol->source_rfc1001_name,0x20,15);
for(i=0 ; i < n ; i++) {
/* does not have to be perfect mapping since field is
informational, only used for servers that do not support
port 445 and it can be overridden at mount time */
vol->source_rfc1001_name[i] = toupper(nodename[i]);
}
}
vol->source_rfc1001_name[15] = 0;
/* null target name indicates to use *SMBSERVR default called name
@ -3215,7 +3220,9 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
}
/* else do not bother copying these informational fields */
}
if(smb_buffer_response->WordCount == 3)
if((smb_buffer_response->WordCount == 3) ||
(smb_buffer_response->WordCount == 7))
/* field is in same location */
tcon->Flags = le16_to_cpu(pSMBr->OptionalSupport);
else
tcon->Flags = 0;
@ -3312,19 +3319,21 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo,
first_time = 1;
}
if (!rc) {
pSesInfo->flags = 0;
pSesInfo->capabilities = pSesInfo->server->capabilities;
if(linuxExtEnabled == 0)
pSesInfo->capabilities &= (~CAP_UNIX);
/* pSesInfo->sequence_number = 0;*/
cFYI(1,("Security Mode: 0x%x Capabilities: 0x%x Time Zone: %d",
cFYI(1,("Security Mode: 0x%x Capabilities: 0x%x TimeAdjust: %d",
pSesInfo->server->secMode,
pSesInfo->server->capabilities,
pSesInfo->server->timeZone));
pSesInfo->server->timeAdj));
if(experimEnabled < 2)
rc = CIFS_SessSetup(xid, pSesInfo,
first_time, nls_info);
else if (extended_security
&& (pSesInfo->capabilities & CAP_EXTENDED_SECURITY)
&& (pSesInfo->capabilities
& CAP_EXTENDED_SECURITY)
&& (pSesInfo->server->secType == NTLMSSP)) {
rc = -EOPNOTSUPP;
} else if (extended_security
@ -3338,7 +3347,7 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo,
if (!rc) {
if(ntlmv2_flag) {
char * v2_response;
cFYI(1,("Can use more secure NTLM version 2 password hash"));
cFYI(1,("more secure NTLM ver2 hash"));
if(CalcNTLMv2_partial_mac_key(pSesInfo,
nls_info)) {
rc = -ENOMEM;

12
fs/cifs/inode.c
View File

@ -337,6 +337,7 @@ int cifs_get_inode_info(struct inode **pinode,
pfindData = (FILE_ALL_INFO *)buf;
/* could do find first instead but this returns more info */
rc = CIFSSMBQPathInfo(xid, pTcon, search_path, pfindData,
0 /* not legacy */,
cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
/* BB optimize code so we do not make the above call
@ -384,8 +385,10 @@ int cifs_get_inode_info(struct inode **pinode,
/* get new inode */
if (*pinode == NULL) {
*pinode = new_inode(sb);
if (*pinode == NULL)
if (*pinode == NULL) {
kfree(buf);
return -ENOMEM;
}
/* Is an i_ino of zero legal? Can we use that to check
if the server supports returning inode numbers? Are
there other sanity checks we can use to ensure that
@ -431,8 +434,11 @@ int cifs_get_inode_info(struct inode **pinode,
(pTcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFE00;*/
/* Linux can not store file creation time so ignore it */
inode->i_atime =
cifs_NTtimeToUnix(le64_to_cpu(pfindData->LastAccessTime));
if(pfindData->LastAccessTime)
inode->i_atime = cifs_NTtimeToUnix
(le64_to_cpu(pfindData->LastAccessTime));
else /* do not need to use current_fs_time - time not stored */
inode->i_atime = CURRENT_TIME;
inode->i_mtime =
cifs_NTtimeToUnix(le64_to_cpu(pfindData->LastWriteTime));
inode->i_ctime =

6
fs/cifs/link.c
View File

@ -254,7 +254,11 @@ cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen)
tmpbuffer,
len - 1,
cifs_sb->local_nls);
else {
else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
cERROR(1,("SFU style symlinks not implemented yet"));
/* add open and read as in fs/cifs/inode.c */
} else {
rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN, GENERIC_READ,
OPEN_REPARSE_POINT,&fid, &oplock, NULL,
cifs_sb->local_nls,

8
fs/cifs/md5.c
View File

@ -252,10 +252,11 @@ MD5Transform(__u32 buf[4], __u32 const in[16])
buf[3] += d;
}
#if 0 /* currently unused */
/***********************************************************************
the rfc 2104 version of hmac_md5 initialisation.
***********************************************************************/
void
static void
hmac_md5_init_rfc2104(unsigned char *key, int key_len,
struct HMACMD5Context *ctx)
{
@ -289,6 +290,7 @@ hmac_md5_init_rfc2104(unsigned char *key, int key_len,
MD5Init(&ctx->ctx);
MD5Update(&ctx->ctx, ctx->k_ipad, 64);
}
#endif
/***********************************************************************
the microsoft version of hmac_md5 initialisation.
@ -350,7 +352,8 @@ hmac_md5_final(unsigned char *digest, struct HMACMD5Context *ctx)
single function to calculate an HMAC MD5 digest from data.
use the microsoft hmacmd5 init method because the key is 16 bytes.
************************************************************/
void
#if 0 /* currently unused */
static void
hmac_md5(unsigned char key[16], unsigned char *data, int data_len,
unsigned char *digest)
{
@ -361,3 +364,4 @@ hmac_md5(unsigned char key[16], unsigned char *data, int data_len,
}
hmac_md5_final(digest, &ctx);
}
#endif

8
fs/cifs/md5.h
View File

@ -27,12 +27,12 @@ void MD5Final(unsigned char digest[16], struct MD5Context *context);
/* The following definitions come from lib/hmacmd5.c */
void hmac_md5_init_rfc2104(unsigned char *key, int key_len,
struct HMACMD5Context *ctx);
/* void hmac_md5_init_rfc2104(unsigned char *key, int key_len,
struct HMACMD5Context *ctx);*/
void hmac_md5_init_limK_to_64(const unsigned char *key, int key_len,
struct HMACMD5Context *ctx);
void hmac_md5_update(const unsigned char *text, int text_len,
struct HMACMD5Context *ctx);
void hmac_md5_final(unsigned char *digest, struct HMACMD5Context *ctx);
void hmac_md5(unsigned char key[16], unsigned char *data, int data_len,
unsigned char *digest);
/* void hmac_md5(unsigned char key[16], unsigned char *data, int data_len,
unsigned char *digest);*/

44
fs/cifs/misc.c
View File

@ -389,7 +389,7 @@ header_assemble(struct smb_hdr *buffer, char smb_command /* command */ ,
return;
}
int
static int
checkSMBhdr(struct smb_hdr *smb, __u16 mid)
{
/* Make sure that this really is an SMB, that it is a response,
@ -418,26 +418,42 @@ checkSMBhdr(struct smb_hdr *smb, __u16 mid)
}
int
checkSMB(struct smb_hdr *smb, __u16 mid, int length)
checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length)
{
__u32 len = smb->smb_buf_length;
__u32 clc_len; /* calculated length */
cFYI(0, ("checkSMB Length: 0x%x, smb_buf_length: 0x%x", length, len));
if (((unsigned int)length < 2 + sizeof (struct smb_hdr)) ||
(len > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4)) {
if ((unsigned int)length < 2 + sizeof (struct smb_hdr)) {
if (((unsigned int)length >=
sizeof (struct smb_hdr) - 1)
if (length < 2 + sizeof (struct smb_hdr)) {
if ((length >= sizeof (struct smb_hdr) - 1)
&& (smb->Status.CifsError != 0)) {
smb->WordCount = 0;
/* some error cases do not return wct and bcc */
smb->WordCount = 0;
/* some error cases do not return wct and bcc */
return 0;
} else if ((length == sizeof(struct smb_hdr) + 1) &&
(smb->WordCount == 0)) {
char * tmp = (char *)smb;
/* Need to work around a bug in two servers here */
/* First, check if the part of bcc they sent was zero */
if (tmp[sizeof(struct smb_hdr)] == 0) {
/* some servers return only half of bcc
* on simple responses (wct, bcc both zero)
* in particular have seen this on
* ulogoffX and FindClose. This leaves
* one byte of bcc potentially unitialized
*/
/* zero rest of bcc */
tmp[sizeof(struct smb_hdr)+1] = 0;
return 0;
} else {
cERROR(1, ("Length less than smb header size"));
}
cERROR(1,("rcvd invalid byte count (bcc)"));
} else {
cERROR(1, ("Length less than smb header size"));
}
if (len > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4)
cERROR(1, ("smb length greater than MaxBufSize, mid=%d",
return 1;
}
if (len > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4) {
cERROR(1, ("smb length greater than MaxBufSize, mid=%d",
smb->Mid));
return 1;
}
@ -446,7 +462,7 @@ checkSMB(struct smb_hdr *smb, __u16 mid, int length)
return 1;
clc_len = smbCalcSize_LE(smb);
if(4 + len != (unsigned int)length) {
if(4 + len != length) {
cERROR(1, ("Length read does not match RFC1001 length %d",len));
return 1;
}

58
fs/cifs/netmisc.c
View File

@ -909,3 +909,61 @@ cifs_UnixTimeToNT(struct timespec t)
/* Convert to 100ns intervals and then add the NTFS time offset. */
return (u64) t.tv_sec * 10000000 + t.tv_nsec/100 + NTFS_TIME_OFFSET;
}
static int total_days_of_prev_months[] =
{0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334};
__le64 cnvrtDosCifsTm(__u16 date, __u16 time)
{
return cpu_to_le64(cifs_UnixTimeToNT(cnvrtDosUnixTm(date, time)));
}
struct timespec cnvrtDosUnixTm(__u16 date, __u16 time)
{
struct timespec ts;
int sec, min, days, month, year;
SMB_TIME * st = (SMB_TIME *)&time;
SMB_DATE * sd = (SMB_DATE *)&date;
cFYI(1,("date %d time %d",date, time));
sec = 2 * st->TwoSeconds;
min = st->Minutes;
if((sec > 59) || (min > 59))
cERROR(1,("illegal time min %d sec %d", min, sec));
sec += (min * 60);
sec += 60 * 60 * st->Hours;
if(st->Hours > 24)
cERROR(1,("illegal hours %d",st->Hours));
days = sd->Day;
month = sd->Month;
if((days > 31) || (month > 12))
cERROR(1,("illegal date, month %d day: %d", month, days));
month -= 1;
days += total_days_of_prev_months[month];
days += 3652; /* account for difference in days between 1980 and 1970 */
year = sd->Year;
days += year * 365;
days += (year/4); /* leap year */
/* generalized leap year calculation is more complex, ie no leap year
for years/100 except for years/400, but since the maximum number for DOS
year is 2**7, the last year is 1980+127, which means we need only
consider 2 special case years, ie the years 2000 and 2100, and only
adjust for the lack of leap year for the year 2100, as 2000 was a
leap year (divisable by 400) */
if(year >= 120) /* the year 2100 */
days = days - 1; /* do not count leap year for the year 2100 */
/* adjust for leap year where we are still before leap day */
if(year != 120)
days -= ((year & 0x03) == 0) && (month < 2 ? 1 : 0);
sec += 24 * 60 * 60 * days;
ts.tv_sec = sec;
/* cFYI(1,("sec after cnvrt dos to unix time %d",sec)); */
ts.tv_nsec = 0;
return ts;
}

27
fs/cifs/readdir.c
View File

@ -106,6 +106,17 @@ static int construct_dentry(struct qstr *qstring, struct file *file,
return rc;
}
static void AdjustForTZ(struct cifsTconInfo * tcon, struct inode * inode)
{
if((tcon) && (tcon->ses) && (tcon->ses->server)) {
inode->i_ctime.tv_sec += tcon->ses->server->timeAdj;
inode->i_mtime.tv_sec += tcon->ses->server->timeAdj;
inode->i_atime.tv_sec += tcon->ses->server->timeAdj;
}
return;
}
static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
char * buf, int *pobject_type, int isNewInode)
{
@ -135,16 +146,23 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
tmp_inode->i_ctime =
cifs_NTtimeToUnix(le64_to_cpu(pfindData->ChangeTime));
} else { /* legacy, OS2 and DOS style */
/* struct timespec ts;*/
FIND_FILE_STANDARD_INFO * pfindData =
(FIND_FILE_STANDARD_INFO *)buf;
tmp_inode->i_mtime = cnvrtDosUnixTm(
le16_to_cpu(pfindData->LastWriteDate),
le16_to_cpu(pfindData->LastWriteTime));
tmp_inode->i_atime = cnvrtDosUnixTm(
le16_to_cpu(pfindData->LastAccessDate),
le16_to_cpu(pfindData->LastAccessTime));
tmp_inode->i_ctime = cnvrtDosUnixTm(
le16_to_cpu(pfindData->LastWriteDate),
le16_to_cpu(pfindData->LastWriteTime));
AdjustForTZ(cifs_sb->tcon, tmp_inode);
attr = le16_to_cpu(pfindData->Attributes);
allocation_size = le32_to_cpu(pfindData->AllocationSize);
end_of_file = le32_to_cpu(pfindData->DataSize);
tmp_inode->i_atime = CURRENT_TIME;
/* tmp_inode->i_mtime = BB FIXME - add dos time handling
tmp_inode->i_ctime = 0; BB FIXME */
}
/* Linux can not store file creation time unfortunately so ignore it */
@ -938,6 +956,7 @@ static int cifs_save_resume_key(const char *current_entry,
filename = &pFindData->FileName[0];
/* one byte length, no name conversion */
len = (unsigned int)pFindData->FileNameLength;
cifsFile->srch_inf.resume_key = pFindData->ResumeKey;
} else {
cFYI(1,("Unknown findfirst level %d",level));
return -EINVAL;

23
fs/cifs/sess.c
View File

@ -268,6 +268,10 @@ static int decode_ascii_ssetup(char ** pbcc_area, int bleft, struct cifsSesInfo
ses->serverOS = kzalloc(len + 1, GFP_KERNEL);
if(ses->serverOS)
strncpy(ses->serverOS, bcc_ptr, len);
if(strncmp(ses->serverOS, "OS/2",4) == 0) {
cFYI(1,("OS/2 server"));
ses->flags |= CIFS_SES_OS2;
}
bcc_ptr += len + 1;
bleft -= len + 1;
@ -290,16 +294,11 @@ static int decode_ascii_ssetup(char ** pbcc_area, int bleft, struct cifsSesInfo
if(len > bleft)
return rc;
if(ses->serverDomain)
kfree(ses->serverDomain);
ses->serverDomain = kzalloc(len + 1, GFP_KERNEL);
if(ses->serverOS)
strncpy(ses->serverOS, bcc_ptr, len);
bcc_ptr += len + 1;
bleft -= len + 1;
/* No domain field in LANMAN case. Domain is
returned by old servers in the SMB negprot response */
/* BB For newer servers which do not support Unicode,
but thus do return domain here we could add parsing
for it later, but it is not very important */
cFYI(1,("ascii: bytes left %d",bleft));
return rc;
@ -366,6 +365,8 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time,
str_area = kmalloc(2000, GFP_KERNEL);
bcc_ptr = str_area;
ses->flags &= ~CIFS_SES_LANMAN;
if(type == LANMAN) {
#ifdef CONFIG_CIFS_WEAK_PW_HASH
char lnm_session_key[CIFS_SESS_KEY_SIZE];
@ -377,7 +378,7 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time,
/* and copy into bcc */
calc_lanman_hash(ses, lnm_session_key);
ses->flags |= CIFS_SES_LANMAN;
/* #ifdef CONFIG_CIFS_DEBUG2
cifs_dump_mem("cryptkey: ",ses->server->cryptKey,
CIFS_SESS_KEY_SIZE);

6
fs/cifs/smbdes.c
View File

@ -364,20 +364,20 @@ E_P24(unsigned char *p21, unsigned char *c8, unsigned char *p24)
smbhash(p24 + 16, c8, p21 + 14, 1);
}
void
#if 0 /* currently unsued */
static void
D_P16(unsigned char *p14, unsigned char *in, unsigned char *out)
{
smbhash(out, in, p14, 0);
smbhash(out + 8, in + 8, p14 + 7, 0);
}
void
static void
E_old_pw_hash(unsigned char *p14, unsigned char *in, unsigned char *out)
{
smbhash(out, in, p14, 1);
smbhash(out + 8, in + 8, p14 + 7, 1);
}
#if 0
/* these routines are currently unneeded, but may be
needed later */
void

11
fs/cifs/smbencrypt.c
View File

@ -51,11 +51,8 @@
void SMBencrypt(unsigned char *passwd, unsigned char *c8, unsigned char *p24);
void E_md4hash(const unsigned char *passwd, unsigned char *p16);
void nt_lm_owf_gen(char *pwd, unsigned char nt_p16[16], unsigned char p16[16]);
static void SMBOWFencrypt(unsigned char passwd[16], unsigned char *c8,
unsigned char p24[24]);
void NTLMSSPOWFencrypt(unsigned char passwd[8],
unsigned char *ntlmchalresp, unsigned char p24[24]);
void SMBNTencrypt(unsigned char *passwd, unsigned char *c8, unsigned char *p24);
/*
@ -144,8 +141,9 @@ E_md4hash(const unsigned char *passwd, unsigned char *p16)
memset(wpwd,0,129 * 2);
}
#if 0 /* currently unused */
/* Does both the NT and LM owfs of a user's password */
void
static void
nt_lm_owf_gen(char *pwd, unsigned char nt_p16[16], unsigned char p16[16])
{
char passwd[514];
@ -171,6 +169,7 @@ nt_lm_owf_gen(char *pwd, unsigned char nt_p16[16], unsigned char p16[16])
/* clear out local copy of user's password (just being paranoid). */
memset(passwd, '\0', sizeof (passwd));
}
#endif
/* Does the NTLMv2 owfs of a user's password */
#if 0 /* function not needed yet - but will be soon */
@ -223,7 +222,8 @@ SMBOWFencrypt(unsigned char passwd[16], unsigned char *c8,
}
/* Does the des encryption from the FIRST 8 BYTES of the NT or LM MD4 hash. */
void
#if 0 /* currently unused */
static void
NTLMSSPOWFencrypt(unsigned char passwd[8],
unsigned char *ntlmchalresp, unsigned char p24[24])
{
@ -235,6 +235,7 @@ NTLMSSPOWFencrypt(unsigned char passwd[8],
E_P24(p21, ntlmchalresp, p24);
}
#endif
/* Does the NT MD4 hash then des encryption. */