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-rw-r--r--fs/cifs/CHANGES6
-rw-r--r--fs/cifs/cifs_debug.c10
-rw-r--r--fs/cifs/cifs_fs_sb.h2
-rw-r--r--fs/cifs/cifsglob.h10
-rw-r--r--fs/cifs/cifspdu.h56
-rw-r--r--fs/cifs/cifsproto.h13
-rw-r--r--fs/cifs/cifssmb.c160
-rw-r--r--fs/cifs/connect.c27
-rw-r--r--fs/cifs/dir.c48
-rw-r--r--fs/cifs/fcntl.c2
-rw-r--r--fs/cifs/file.c24
-rw-r--r--fs/cifs/inode.c24
-rw-r--r--fs/cifs/link.c15
-rw-r--r--fs/cifs/misc.c1
-rw-r--r--fs/cifs/netmisc.c4
-rw-r--r--fs/cifs/readdir.c27
-rw-r--r--fs/cifs/transport.c225
-rw-r--r--fs/cifs/xattr.c8
18 files changed, 537 insertions, 125 deletions
diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index dab4774ee7bb..3196d4c4eed3 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -1,3 +1,9 @@
+Version 1.35
+------------
+Add writepage performance improvements. Fix path name conversions
+for long filenames on mounts which were done with "mapchars" mount option
+specified.
+
Version 1.34
------------
Fix error mapping of the TOO_MANY_LINKS (hardlinks) case.
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 4061e43471c1..838171328076 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -283,6 +283,12 @@ cifs_stats_read(char *buf, char **beginBuffer, off_t offset,
atomic_read(&tcon->num_t2renames));
buf += item_length;
length += item_length;
+ item_length = sprintf(buf,"\nFindFirst: %d FNext %d FClose %d",
+ atomic_read(&tcon->num_ffirst),
+ atomic_read(&tcon->num_fnext),
+ atomic_read(&tcon->num_fclose));
+ buf += item_length;
+ length += item_length;
}
read_unlock(&GlobalSMBSeslock);
@@ -360,7 +366,7 @@ cifs_proc_init(void)
if (pde)
pde->write_proc = oplockEnabled_write;
- pde = create_proc_read_entry("ReenableOldCifsReaddirCode", 0, proc_fs_cifs,
+ pde = create_proc_read_entry("Experimental", 0, proc_fs_cifs,
quotaEnabled_read, NULL);
if (pde)
pde->write_proc = quotaEnabled_write;
@@ -419,7 +425,7 @@ cifs_proc_clean(void)
remove_proc_entry("ExtendedSecurity",proc_fs_cifs);
remove_proc_entry("PacketSigningEnabled",proc_fs_cifs);
remove_proc_entry("LinuxExtensionsEnabled",proc_fs_cifs);
- remove_proc_entry("ReenableOldCifsReaddirCode",proc_fs_cifs);
+ remove_proc_entry("Experimental",proc_fs_cifs);
remove_proc_entry("LookupCacheEnabled",proc_fs_cifs);
remove_proc_entry("cifs", proc_root_fs);
}
diff --git a/fs/cifs/cifs_fs_sb.h b/fs/cifs/cifs_fs_sb.h
index ec00d61d5308..6b93587c490e 100644
--- a/fs/cifs/cifs_fs_sb.h
+++ b/fs/cifs/cifs_fs_sb.h
@@ -24,6 +24,8 @@
#define CIFS_MOUNT_DIRECT_IO 8 /* do not write nor read through page cache */
#define CIFS_MOUNT_NO_XATTR 0x10 /* if set - disable xattr support */
#define CIFS_MOUNT_MAP_SPECIAL_CHR 0x20 /* remap illegal chars in filenames */
+#define CIFS_MOUNT_POSIX_PATHS 0x40 /* Negotiate posix pathnames if possible. */
+#define CIFS_MOUNT_UNX_EMUL 0x80 /* Network compat with SFUnix emulation */
struct cifs_sb_info {
struct cifsTconInfo *tcon; /* primary mount */
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 81babab265e1..d3773e57acf9 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -219,6 +219,9 @@ struct cifsTconInfo {
atomic_t num_rmdirs;
atomic_t num_renames;
atomic_t num_t2renames;
+ atomic_t num_ffirst;
+ atomic_t num_fnext;
+ atomic_t num_fclose;
__u64 bytes_read;
__u64 bytes_written;
spinlock_t stat_lock;
@@ -306,6 +309,13 @@ CIFS_SB(struct super_block *sb)
return sb->s_fs_info;
}
+static inline const char CIFS_DIR_SEP(const struct cifs_sb_info *cifs_sb)
+{
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS)
+ return '/';
+ else
+ return '\\';
+}
/* one of these for every pending CIFS request to the server */
struct mid_q_entry {
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h
index aede6a813167..3cef57b7a34f 100644
--- a/fs/cifs/cifspdu.h
+++ b/fs/cifs/cifspdu.h
@@ -59,6 +59,7 @@
#define TRANS2_FIND_FIRST 0x01
#define TRANS2_FIND_NEXT 0x02
#define TRANS2_QUERY_FS_INFORMATION 0x03
+#define TRANS2_SET_FS_INFORMATION 0x04
#define TRANS2_QUERY_PATH_INFORMATION 0x05
#define TRANS2_SET_PATH_INFORMATION 0x06
#define TRANS2_QUERY_FILE_INFORMATION 0x07
@@ -267,10 +268,18 @@
/* CreateOptions */
#define CREATE_NOT_FILE 0x00000001 /* if set must not be file */
#define CREATE_WRITE_THROUGH 0x00000002
-#define CREATE_NOT_DIR 0x00000040 /* if set must not be directory */
+#define CREATE_SEQUENTIAL 0x00000004
+#define CREATE_SYNC_ALERT 0x00000010
+#define CREATE_ASYNC_ALERT 0x00000020
+#define CREATE_NOT_DIR 0x00000040 /* if set must not be directory */
+#define CREATE_NO_EA_KNOWLEDGE 0x00000200
+#define CREATE_EIGHT_DOT_THREE 0x00000400
#define CREATE_RANDOM_ACCESS 0x00000800
#define CREATE_DELETE_ON_CLOSE 0x00001000
+#define CREATE_OPEN_BY_ID 0x00002000
#define OPEN_REPARSE_POINT 0x00200000
+#define CREATE_OPTIONS_MASK 0x007FFFFF
+#define CREATE_OPTION_SPECIAL 0x20000000 /* system. NB not sent over wire */
/* ImpersonationLevel flags */
#define SECURITY_ANONYMOUS 0
@@ -1411,6 +1420,43 @@ typedef struct smb_com_transaction_qfsi_rsp {
__u8 Pad; /* may be three bytes *//* followed by data area */
} TRANSACTION2_QFSI_RSP;
+
+/* SETFSInfo Levels */
+#define SMB_SET_CIFS_UNIX_INFO 0x200
+typedef struct smb_com_transaction2_setfsi_req {
+ struct smb_hdr hdr; /* wct = 15 */
+ __le16 TotalParameterCount;
+ __le16 TotalDataCount;
+ __le16 MaxParameterCount;
+ __le16 MaxDataCount;
+ __u8 MaxSetupCount;
+ __u8 Reserved;
+ __le16 Flags;
+ __le32 Timeout;
+ __u16 Reserved2;
+ __le16 ParameterCount; /* 4 */
+ __le16 ParameterOffset;
+ __le16 DataCount; /* 12 */
+ __le16 DataOffset;
+ __u8 SetupCount; /* one */
+ __u8 Reserved3;
+ __le16 SubCommand; /* TRANS2_SET_FS_INFORMATION */
+ __le16 ByteCount;
+ __u8 Pad;
+ __u16 FileNum; /* Parameters start. */
+ __le16 InformationLevel;/* Parameters end. */
+ __le16 ClientUnixMajor; /* Data start. */
+ __le16 ClientUnixMinor;
+ __le64 ClientUnixCap; /* Data end */
+} TRANSACTION2_SETFSI_REQ;
+
+typedef struct smb_com_transaction2_setfsi_rsp {
+ struct smb_hdr hdr; /* wct = 10 */
+ struct trans2_resp t2;
+ __u16 ByteCount;
+} TRANSACTION2_SETFSI_RSP;
+
+
typedef struct smb_com_transaction2_get_dfs_refer_req {
struct smb_hdr hdr; /* wct = 15 */
__le16 TotalParameterCount;
@@ -1551,12 +1597,20 @@ typedef struct {
__le16 MinorVersionNumber;
__le64 Capability;
} FILE_SYSTEM_UNIX_INFO; /* Unix extensions info, level 0x200 */
+
+/* Version numbers for CIFS UNIX major and minor. */
+#define CIFS_UNIX_MAJOR_VERSION 1
+#define CIFS_UNIX_MINOR_VERSION 0
+
/* Linux/Unix extensions capability flags */
#define CIFS_UNIX_FCNTL_CAP 0x00000001 /* support for fcntl locks */
#define CIFS_UNIX_POSIX_ACL_CAP 0x00000002 /* support getfacl/setfacl */
#define CIFS_UNIX_XATTR_CAP 0x00000004 /* support new namespace */
#define CIFS_UNIX_EXTATTR_CAP 0x00000008 /* support chattr/chflag */
+#define CIFS_UNIX_POSIX_PATHNAMES_CAP 0x00000010 /* Use POSIX pathnames on the wire. */
+
#define CIFS_POSIX_EXTENSIONS 0x00000010 /* support for new QFSInfo */
+
typedef struct {
/* For undefined recommended transfer size return -1 in that field */
__le32 OptimalTransferSize; /* bsize on some os, iosize on other os */
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index ea239dea571e..66eaa6b40373 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -40,13 +40,17 @@ extern unsigned int _GetXid(void);
extern void _FreeXid(unsigned int);
#define GetXid() (int)_GetXid(); cFYI(1,("CIFS VFS: in %s as Xid: %d with uid: %d",__FUNCTION__, xid,current->fsuid));
#define FreeXid(curr_xid) {_FreeXid(curr_xid); cFYI(1,("CIFS VFS: leaving %s (xid = %d) rc = %d",__FUNCTION__,curr_xid,(int)rc));}
-extern char *build_path_from_dentry(struct dentry *);
+extern char *build_path_from_dentry(struct dentry *, const struct cifs_sb_info *cifs_sb);
extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
extern void renew_parental_timestamps(struct dentry *direntry);
extern int SendReceive(const unsigned int /* xid */ , struct cifsSesInfo *,
struct smb_hdr * /* input */ ,
struct smb_hdr * /* out */ ,
int * /* bytes returned */ , const int long_op);
+extern int SendReceive2(const unsigned int /* xid */ , struct cifsSesInfo *,
+ struct smb_hdr * /* input */ , int hdr_len,
+ const char * /* SMB data to send */ , int data_len,
+ int * /* bytes returned */ , const int long_op);
extern int checkSMBhdr(struct smb_hdr *smb, __u16 mid);
extern int checkSMB(struct smb_hdr *smb, __u16 mid, int length);
extern int is_valid_oplock_break(struct smb_hdr *smb);
@@ -89,7 +93,7 @@ extern int CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
extern int CIFSFindFirst(const int xid, struct cifsTconInfo *tcon,
const char *searchName, const struct nls_table *nls_codepage,
- __u16 *searchHandle, struct cifs_search_info * psrch_inf, int map);
+ __u16 *searchHandle, struct cifs_search_info * psrch_inf, int map, const char dirsep);
extern int CIFSFindNext(const int xid, struct cifsTconInfo *tcon,
__u16 searchHandle, struct cifs_search_info * psrch_inf);
@@ -125,6 +129,9 @@ extern int get_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
int remap);
extern int CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon,
struct kstatfs *FSData);
+extern int CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon,
+ __u64 cap);
+
extern int CIFSSMBQFSAttributeInfo(const int xid,
struct cifsTconInfo *tcon);
extern int CIFSSMBQFSDeviceInfo(const int xid, struct cifsTconInfo *tcon);
@@ -222,7 +229,7 @@ extern int CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon,
extern int CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
const int netfid, const unsigned int count,
const __u64 offset, unsigned int *nbytes,
- const char __user *buf,const int long_op);
+ const char *buf,const int long_op);
extern int CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon,
const unsigned char *searchName, __u64 * inode_number,
const struct nls_table *nls_codepage,
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 3c628bf667a5..e555cb5cf493 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -738,7 +738,13 @@ openRetry:
}
pSMB->DesiredAccess = cpu_to_le32(access_flags);
pSMB->AllocationSize = 0;
- pSMB->FileAttributes = cpu_to_le32(ATTR_NORMAL);
+ /* set file as system file if special file such
+ as fifo and server expecting SFU style and
+ no Unix extensions */
+ if(create_options & CREATE_OPTION_SPECIAL)
+ pSMB->FileAttributes = cpu_to_le32(ATTR_SYSTEM);
+ else
+ pSMB->FileAttributes = cpu_to_le32(ATTR_NORMAL);
/* XP does not handle ATTR_POSIX_SEMANTICS */
/* but it helps speed up case sensitive checks for other
servers such as Samba */
@@ -752,7 +758,7 @@ openRetry:
being created */
pSMB->ShareAccess = cpu_to_le32(FILE_SHARE_ALL);
pSMB->CreateDisposition = cpu_to_le32(openDisposition);
- pSMB->CreateOptions = cpu_to_le32(create_options);
+ pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK);
/* BB Expirement with various impersonation levels and verify */
pSMB->ImpersonationLevel = cpu_to_le32(SECURITY_IMPERSONATION);
pSMB->SecurityFlags =
@@ -951,56 +957,69 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon,
}
#ifdef CONFIG_CIFS_EXPERIMENTAL
-int CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
+int
+CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
const int netfid, const unsigned int count,
- const __u64 offset, unsigned int *nbytes, const char __user *buf,
+ const __u64 offset, unsigned int *nbytes, const char *buf,
const int long_op)
{
int rc = -EACCES;
WRITE_REQ *pSMB = NULL;
- WRITE_RSP *pSMBr = NULL;
- /*int bytes_returned;*/
- unsigned bytes_sent;
+ int bytes_returned;
+ int smb_hdr_len;
+ __u32 bytes_sent;
__u16 byte_count;
+ cFYI(1,("write2 at %lld %d bytes",offset,count)); /* BB removeme BB */
rc = small_smb_init(SMB_COM_WRITE_ANDX, 14, tcon, (void **) &pSMB);
-
if (rc)
return rc;
-
- pSMBr = (WRITE_RSP *)pSMB; /* BB removeme BB */
-
/* tcon and ses pointer are checked in smb_init */
if (tcon->ses->server == NULL)
return -ECONNABORTED;
- pSMB->AndXCommand = 0xFF; /* none */
+ pSMB->AndXCommand = 0xFF; /* none */
pSMB->Fid = netfid;
pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF);
pSMB->OffsetHigh = cpu_to_le32(offset >> 32);
pSMB->Reserved = 0xFFFFFFFF;
pSMB->WriteMode = 0;
pSMB->Remaining = 0;
- bytes_sent = (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & ~0xFF;
+
+ /* Can increase buffer size if buffer is big enough in some cases - ie
+ can send more if LARGE_WRITE_X capability returned by the server and if
+ our buffer is big enough or if we convert to iovecs on socket writes
+ and eliminate the copy to the CIFS buffer */
+ if(tcon->ses->capabilities & CAP_LARGE_WRITE_X) {
+ bytes_sent = min_t(const unsigned int, CIFSMaxBufSize, count);
+ } else {
+ bytes_sent = (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE)
+ & ~0xFF;
+ }
+
if (bytes_sent > count)
bytes_sent = count;
- pSMB->DataLengthHigh = 0;
pSMB->DataOffset =
cpu_to_le16(offsetof(struct smb_com_write_req,Data) - 4);
- byte_count = bytes_sent + 1 /* pad */ ;
- pSMB->DataLengthLow = cpu_to_le16(bytes_sent);
- pSMB->DataLengthHigh = 0;
- pSMB->hdr.smb_buf_length += byte_count;
+ byte_count = bytes_sent + 1 /* pad */ ; /* BB fix this for sends > 64K */
+ pSMB->DataLengthLow = cpu_to_le16(bytes_sent & 0xFFFF);
+ pSMB->DataLengthHigh = cpu_to_le16(bytes_sent >> 16);
+ smb_hdr_len = pSMB->hdr.smb_buf_length + 1; /* hdr + 1 byte pad */
+ pSMB->hdr.smb_buf_length += bytes_sent+1;
pSMB->ByteCount = cpu_to_le16(byte_count);
-/* rc = SendReceive2(xid, tcon->ses, (struct smb_hdr *) pSMB,
- (struct smb_hdr *) pSMBr, buf, buflen, &bytes_returned, long_op); */ /* BB fixme BB */
+ rc = SendReceive2(xid, tcon->ses, (struct smb_hdr *) pSMB, smb_hdr_len,
+ buf, bytes_sent, &bytes_returned, long_op);
if (rc) {
- cFYI(1, ("Send error in write2 (large write) = %d", rc));
+ cFYI(1, ("Send error in write = %d", rc));
*nbytes = 0;
- } else
- *nbytes = le16_to_cpu(pSMBr->Count);
+ } else {
+ WRITE_RSP * pSMBr = (WRITE_RSP *)pSMB;
+ *nbytes = le16_to_cpu(pSMBr->CountHigh);
+ *nbytes = (*nbytes) << 16;
+ *nbytes += le16_to_cpu(pSMBr->Count);
+ }
cifs_small_buf_release(pSMB);
@@ -1009,6 +1028,8 @@ int CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
return rc;
}
+
+
#endif /* CIFS_EXPERIMENTAL */
int
@@ -2396,7 +2417,9 @@ findUniqueRetry:
if (rc) {
cFYI(1, ("Send error in FindFileDirInfo = %d", rc));
} else { /* decode response */
-
+#ifdef CONFIG_CIFS_STATS
+ atomic_inc(&tcon->num_ffirst);
+#endif
/* BB fill in */
}
@@ -2414,7 +2437,7 @@ CIFSFindFirst(const int xid, struct cifsTconInfo *tcon,
const char *searchName,
const struct nls_table *nls_codepage,
__u16 * pnetfid,
- struct cifs_search_info * psrch_inf, int remap)
+ struct cifs_search_info * psrch_inf, int remap, const char dirsep)
{
/* level 257 SMB_ */
TRANSACTION2_FFIRST_REQ *pSMB = NULL;
@@ -2441,7 +2464,7 @@ findFirstRetry:
it got remapped to 0xF03A as if it were part of the
directory name instead of a wildcard */
name_len *= 2;
- pSMB->FileName[name_len] = '\\';
+ pSMB->FileName[name_len] = dirsep;
pSMB->FileName[name_len+1] = 0;
pSMB->FileName[name_len+2] = '*';
pSMB->FileName[name_len+3] = 0;
@@ -2455,7 +2478,7 @@ findFirstRetry:
if(name_len > buffersize-header)
free buffer exit; BB */
strncpy(pSMB->FileName, searchName, name_len);
- pSMB->FileName[name_len] = '\\';
+ pSMB->FileName[name_len] = dirsep;
pSMB->FileName[name_len+1] = '*';
pSMB->FileName[name_len+2] = 0;
name_len += 3;
@@ -2509,6 +2532,9 @@ findFirstRetry:
if (rc == -EAGAIN)
goto findFirstRetry;
} else { /* decode response */
+#ifdef CONFIG_CIFS_STATS
+ atomic_inc(&tcon->num_ffirst);
+#endif
/* BB remember to free buffer if error BB */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
if(rc == 0) {
@@ -2602,6 +2628,9 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon,
if(name_len < PATH_MAX) {
memcpy(pSMB->ResumeFileName, psrch_inf->presume_name, name_len);
byte_count += name_len;
+ /* 14 byte parm len above enough for 2 byte null terminator */
+ pSMB->ResumeFileName[name_len] = 0;
+ pSMB->ResumeFileName[name_len+1] = 0;
} else {
rc = -EINVAL;
goto FNext2_err_exit;
@@ -2622,6 +2651,9 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon,
} else
cFYI(1, ("FindNext returned = %d", rc));
} else { /* decode response */
+#ifdef CONFIG_CIFS_STATS
+ atomic_inc(&tcon->num_fnext);
+#endif
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
if(rc == 0) {
@@ -2691,6 +2723,9 @@ CIFSFindClose(const int xid, struct cifsTconInfo *tcon, const __u16 searchHandle
if (rc) {
cERROR(1, ("Send error in FindClose = %d", rc));
}
+#ifdef CONFIG_CIFS_STATS
+ atomic_inc(&tcon->num_fclose);
+#endif
cifs_small_buf_release(pSMB);
/* Since session is dead, search handle closed on server already */
@@ -3254,6 +3289,77 @@ QFSUnixRetry:
return rc;
}
+int
+CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon, __u64 cap)
+{
+/* level 0x200 SMB_SET_CIFS_UNIX_INFO */
+ TRANSACTION2_SETFSI_REQ *pSMB = NULL;
+ TRANSACTION2_SETFSI_RSP *pSMBr = NULL;
+ int rc = 0;
+ int bytes_returned = 0;
+ __u16 params, param_offset, offset, byte_count;
+
+ cFYI(1, ("In SETFSUnixInfo"));
+SETFSUnixRetry:
+ rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
+ (void **) &pSMBr);
+ if (rc)
+ return rc;
+
+ params = 4; /* 2 bytes zero followed by info level. */
+ pSMB->MaxSetupCount = 0;
+ pSMB->Reserved = 0;
+ pSMB->Flags = 0;
+ pSMB->Timeout = 0;
+ pSMB->Reserved2 = 0;
+ param_offset = offsetof(struct smb_com_transaction2_setfsi_req, FileNum) - 4;
+ offset = param_offset + params;
+
+ pSMB->MaxParameterCount = cpu_to_le16(4);
+ pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */
+ pSMB->SetupCount = 1;
+ pSMB->Reserved3 = 0;
+ pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FS_INFORMATION);
+ byte_count = 1 /* pad */ + params + 12;
+
+ pSMB->DataCount = cpu_to_le16(12);
+ pSMB->ParameterCount = cpu_to_le16(params);
+ pSMB->TotalDataCount = pSMB->DataCount;
+ pSMB->TotalParameterCount = pSMB->ParameterCount;
+ pSMB->ParameterOffset = cpu_to_le16(param_offset);
+ pSMB->DataOffset = cpu_to_le16(offset);
+
+ /* Params. */
+ pSMB->FileNum = 0;
+ pSMB->InformationLevel = cpu_to_le16(SMB_SET_CIFS_UNIX_INFO);
+
+ /* Data. */
+ pSMB->ClientUnixMajor = cpu_to_le16(CIFS_UNIX_MAJOR_VERSION);
+ pSMB->ClientUnixMinor = cpu_to_le16(CIFS_UNIX_MINOR_VERSION);
+ pSMB->ClientUnixCap = cpu_to_le64(cap);
+
+ pSMB->hdr.smb_buf_length += byte_count;
+ pSMB->ByteCount = cpu_to_le16(byte_count);
+
+ rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
+ (struct smb_hdr *) pSMBr, &bytes_returned, 0);
+ if (rc) {
+ cERROR(1, ("Send error in SETFSUnixInfo = %d", rc));
+ } else { /* decode response */
+ rc = validate_t2((struct smb_t2_rsp *)pSMBr);
+ if (rc) {
+ rc = -EIO; /* bad smb */
+ }
+ }
+ cifs_buf_release(pSMB);
+
+ if (rc == -EAGAIN)
+ goto SETFSUnixRetry;
+
+ return rc;
+}
+
+
int
CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon,
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index e568cc47a7f9..36f78596c81a 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -74,6 +74,8 @@ struct smb_vol {
unsigned server_ino:1; /* use inode numbers from server ie UniqueId */
unsigned direct_io:1;
unsigned remap:1; /* set to remap seven reserved chars in filenames */
+ unsigned posix_paths:1; /* unset to not ask for posix pathnames. */
+ unsigned sfu_emul:1;
unsigned int rsize;
unsigned int wsize;
unsigned int sockopt;
@@ -745,6 +747,9 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol)
/* vol->retry default is 0 (i.e. "soft" limited retry not hard retry) */
vol->rw = TRUE;
+ /* default is always to request posix paths. */
+ vol->posix_paths = 1;
+
if (!options)
return 1;
@@ -1023,6 +1028,14 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol)
vol->remap = 1;
} else if (strnicmp(data, "nomapchars", 10) == 0) {
vol->remap = 0;
+ } else if (strnicmp(data, "sfu", 3) == 0) {
+ vol->sfu_emul = 1;
+ } else if (strnicmp(data, "nosfu", 5) == 0) {
+ vol->sfu_emul = 0;
+ } else if (strnicmp(data, "posixpaths", 10) == 0) {
+ vol->posix_paths = 1;
+ } else if (strnicmp(data, "noposixpaths", 12) == 0) {
+ vol->posix_paths = 0;
} else if (strnicmp(data, "setuids", 7) == 0) {
vol->setuids = 1;
} else if (strnicmp(data, "nosetuids", 9) == 0) {
@@ -1679,6 +1692,9 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_MAP_SPECIAL_CHR;
if(volume_info.no_xattr)
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_XATTR;
+ if(volume_info.sfu_emul)
+ cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_UNX_EMUL;
+
if(volume_info.direct_io) {
cERROR(1,("mounting share using direct i/o"));
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_DIRECT_IO;
@@ -1781,6 +1797,17 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
cFYI(1,("server negotiated posix acl support"));
sb->s_flags |= MS_POSIXACL;
}
+
+ /* Try and negotiate POSIX pathnames if we can. */
+ if (volume_info.posix_paths && (CIFS_UNIX_POSIX_PATHNAMES_CAP &
+ le64_to_cpu(tcon->fsUnixInfo.Capability))) {
+ if (!CIFSSMBSetFSUnixInfo(xid, tcon, CIFS_UNIX_POSIX_PATHNAMES_CAP)) {
+ cFYI(1,("negotiated posix pathnames support"));
+ cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_POSIX_PATHS;
+ } else {
+ cFYI(1,("posix pathnames support requested but not supported"));
+ }
+ }
}
}
}
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 3f3538d4a1fa..c0f20fc09290 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -43,7 +43,7 @@ renew_parental_timestamps(struct dentry *direntry)
/* Note: caller must free return buffer */
char *
-build_path_from_dentry(struct dentry *direntry)
+build_path_from_dentry(struct dentry *direntry, const struct cifs_sb_info *cifs_sb)
{
struct dentry *temp;
int namelen = 0;
@@ -74,7 +74,7 @@ cifs_bp_rename_retry:
if (namelen < 0) {
break;
} else {
- full_path[namelen] = '\\';
+ full_path[namelen] = CIFS_DIR_SEP(cifs_sb);
strncpy(full_path + namelen + 1, temp->d_name.name,
temp->d_name.len);
cFYI(0, (" name: %s ", full_path + namelen));
@@ -138,7 +138,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
pTcon = cifs_sb->tcon;
down(&direntry->d_sb->s_vfs_rename_sem);
- full_path = build_path_from_dentry(direntry);
+ full_path = build_path_from_dentry(direntry, cifs_sb);
up(&direntry->d_sb->s_vfs_rename_sem);
if(full_path == NULL) {
FreeXid(xid);
@@ -209,7 +209,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
CIFS_MOUNT_MAP_SPECIAL_CHR);
}
else {
- /* BB implement via Windows security descriptors */
+ /* BB implement mode setting via Windows security descriptors */
/* eg CIFSSMBWinSetPerms(xid,pTcon,full_path,mode,-1,-1,local_nls);*/
/* could set r/o dos attribute if mode & 0222 == 0 */
}
@@ -299,7 +299,7 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode, dev_t dev
pTcon = cifs_sb->tcon;
down(&direntry->d_sb->s_vfs_rename_sem);
- full_path = build_path_from_dentry(direntry);
+ full_path = build_path_from_dentry(direntry, cifs_sb);
up(&direntry->d_sb->s_vfs_rename_sem);
if(full_path == NULL)
rc = -ENOMEM;
@@ -326,6 +326,42 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode, dev_t dev
if(rc == 0)
d_instantiate(direntry, newinode);
}
+ } else {
+ if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
+ int oplock = 0;
+ u16 fileHandle;
+ FILE_ALL_INFO * buf;
+
+ cFYI(1,("sfu compat create special file"));
+
+ buf = kmalloc(sizeof(FILE_ALL_INFO),GFP_KERNEL);
+ if(buf == NULL) {
+ kfree(full_path);
+ FreeXid(xid);
+ return -ENOMEM;
+ }
+
+ rc = CIFSSMBOpen(xid, pTcon, full_path,
+ FILE_CREATE, /* fail if exists */
+ GENERIC_WRITE /* BB would
+ WRITE_OWNER | WRITE_DAC be better? */,
+ /* Create a file and set the
+ file attribute to SYSTEM */
+ CREATE_NOT_DIR | CREATE_OPTION_SPECIAL,
+ &fileHandle, &oplock, buf,
+ cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+
+ if(!rc) {
+ /* BB Do not bother to decode buf since no
+ local inode yet to put timestamps in */
+ CIFSSMBClose(xid, pTcon, fileHandle);
+ d_drop(direntry);
+ }
+ kfree(buf);
+ /* add code here to set EAs */
+ }
}
kfree(full_path);
@@ -360,7 +396,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, struct name
/* can not grab the rename sem here since it would
deadlock in the cases (beginning of sys_rename itself)
in which we already have the sb rename sem */
- full_path = build_path_from_dentry(direntry);
+ full_path = build_path_from_dentry(direntry, cifs_sb);
if(full_path == NULL) {
FreeXid(xid);
return ERR_PTR(-ENOMEM);
diff --git a/fs/cifs/fcntl.c b/fs/cifs/fcntl.c
index 7d2a9202c39a..d47ce7f49dc3 100644
--- a/fs/cifs/fcntl.c
+++ b/fs/cifs/fcntl.c
@@ -83,7 +83,7 @@ int cifs_dir_notify(struct file * file, unsigned long arg)
pTcon = cifs_sb->tcon;
down(&file->f_dentry->d_sb->s_vfs_rename_sem);
- full_path = build_path_from_dentry(file->f_dentry);
+ full_path = build_path_from_dentry(file->f_dentry, cifs_sb);
up(&file->f_dentry->d_sb->s_vfs_rename_sem);
if(full_path == NULL) {
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 30ab70ce5547..ddb25a0a63d5 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -196,7 +196,7 @@ int cifs_open(struct inode *inode, struct file *file)
}
down(&inode->i_sb->s_vfs_rename_sem);
- full_path = build_path_from_dentry(file->f_dentry);
+ full_path = build_path_from_dentry(file->f_dentry, cifs_sb);
up(&inode->i_sb->s_vfs_rename_sem);
if (full_path == NULL) {
FreeXid(xid);
@@ -359,7 +359,7 @@ static int cifs_reopen_file(struct inode *inode, struct file *file,
those that already have the rename sem can end up causing writepage
to get called and if the server was down that means we end up here,
and we can never tell if the caller already has the rename_sem */
- full_path = build_path_from_dentry(file->f_dentry);
+ full_path = build_path_from_dentry(file->f_dentry, cifs_sb);
if (full_path == NULL) {
up(&pCifsFile->fh_sem);
FreeXid(xid);
@@ -791,9 +791,8 @@ static ssize_t cifs_write(struct file *file, const char *write_data,
pTcon = cifs_sb->tcon;
- /* cFYI(1,
- (" write %d bytes to offset %lld of %s", write_size,
- *poffset, file->f_dentry->d_name.name)); */
+ cFYI(1,(" write %d bytes to offset %lld of %s", write_size,
+ *poffset, file->f_dentry->d_name.name)); /* BB removeme BB */
if (file->private_data == NULL)
return -EBADF;
@@ -846,7 +845,20 @@ static ssize_t cifs_write(struct file *file, const char *write_data,
if (rc != 0)
break;
}
-
+#ifdef CONFIG_CIFS_EXPERIMENTAL
+ /* BB FIXME We can not sign across two buffers yet */
+ if((experimEnabled) && ((pTcon->ses->server->secMode &
+ (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) == 0)) {
+ rc = CIFSSMBWrite2(xid, pTcon,
+ open_file->netfid,
+ min_t(const int, cifs_sb->wsize,
+ write_size - total_written),
+ *poffset, &bytes_written,
+ write_data + total_written,
+ long_op);
+ } else
+ /* BB FIXME fixup indentation of line below */
+#endif
rc = CIFSSMBWrite(xid, pTcon,
open_file->netfid,
min_t(const int, cifs_sb->wsize,
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 8d336a900255..628aa1a9fe64 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -320,6 +320,16 @@ int cifs_get_inode_info(struct inode **pinode,
on dirs */
inode->i_mode = cifs_sb->mnt_dir_mode;
inode->i_mode |= S_IFDIR;
+ } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) &&
+ (cifsInfo->cifsAttrs & ATTR_SYSTEM) &&
+ /* No need to le64 convert size of zero */
+ (pfindData->EndOfFile == 0)) {
+ inode->i_mode = cifs_sb->mnt_file_mode;
+ inode->i_mode |= S_IFIFO;
+/* BB Finish for SFU style symlinks and devies */
+/* } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) &&
+ (cifsInfo->cifsAttrs & ATTR_SYSTEM) && ) */
+
} else {
inode->i_mode |= S_IFREG;
/* treat the dos attribute of read-only as read-only
@@ -412,7 +422,7 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry)
/* Unlink can be called from rename so we can not grab the sem here
since we deadlock otherwise */
/* down(&direntry->d_sb->s_vfs_rename_sem);*/
- full_path = build_path_from_dentry(direntry);
+ full_path = build_path_from_dentry(direntry, cifs_sb);
/* up(&direntry->d_sb->s_vfs_rename_sem);*/
if (full_path == NULL) {
FreeXid(xid);
@@ -556,7 +566,7 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
pTcon = cifs_sb->tcon;
down(&inode->i_sb->s_vfs_rename_sem);
- full_path = build_path_from_dentry(direntry);
+ full_path = build_path_from_dentry(direntry, cifs_sb);
up(&inode->i_sb->s_vfs_rename_sem);
if (full_path == NULL) {
FreeXid(xid);
@@ -627,7 +637,7 @@ int cifs_rmdir(struct inode *inode, struct dentry *direntry)
pTcon = cifs_sb->tcon;
down(&inode->i_sb->s_vfs_rename_sem);
- full_path = build_path_from_dentry(direntry);
+ full_path = build_path_from_dentry(direntry, cifs_sb);
up(&inode->i_sb->s_vfs_rename_sem);
if (full_path == NULL) {
FreeXid(xid);
@@ -680,8 +690,8 @@ int cifs_rename(struct inode *source_inode, struct dentry *source_direntry,
/* we already have the rename sem so we do not need to grab it again
here to protect the path integrity */
- fromName = build_path_from_dentry(source_direntry);
- toName = build_path_from_dentry(target_direntry);
+ fromName = build_path_from_dentry(source_direntry, cifs_sb_source);
+ toName = build_path_from_dentry(target_direntry, cifs_sb_target);
if ((fromName == NULL) || (toName == NULL)) {
rc = -ENOMEM;
goto cifs_rename_exit;
@@ -797,7 +807,7 @@ int cifs_revalidate(struct dentry *direntry)
/* can not safely grab the rename sem here if rename calls revalidate
since that would deadlock */
- full_path = build_path_from_dentry(direntry);
+ full_path = build_path_from_dentry(direntry, cifs_sb);
if (full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
@@ -946,7 +956,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
pTcon = cifs_sb->tcon;
down(&direntry->d_sb->s_vfs_rename_sem);
- full_path = build_path_from_dentry(direntry);
+ full_path = build_path_from_dentry(direntry, cifs_sb);
up(&direntry->d_sb->s_vfs_rename_sem);
if (full_path == NULL) {
FreeXid(xid);
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index bde0fabfece0..214aa816f669 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -49,8 +49,8 @@ cifs_hardlink(struct dentry *old_file, struct inode *inode,
BB note DFS case in future though (when we may have to check) */
down(&inode->i_sb->s_vfs_rename_sem);
- fromName = build_path_from_dentry(old_file);
- toName = build_path_from_dentry(direntry);
+ fromName = build_path_from_dentry(old_file, cifs_sb_target);
+ toName = build_path_from_dentry(direntry, cifs_sb_target);
up(&inode->i_sb->s_vfs_rename_sem);
if((fromName == NULL) || (toName == NULL)) {
rc = -ENOMEM;
@@ -105,16 +105,17 @@ cifs_follow_link(struct dentry *direntry, struct nameidata *nd)
xid = GetXid();
+ cifs_sb = CIFS_SB(inode->i_sb);
+ pTcon = cifs_sb->tcon;
+
down(&direntry->d_sb->s_vfs_rename_sem);
- full_path = build_path_from_dentry(direntry);
+ full_path = build_path_from_dentry(direntry, cifs_sb);
up(&direntry->d_sb->s_vfs_rename_sem);
if (!full_path)
goto out_no_free;
cFYI(1, ("Full path: %s inode = 0x%p", full_path, inode));
- cifs_sb = CIFS_SB(inode->i_sb);
- pTcon = cifs_sb->tcon;
target_path = kmalloc(PATH_MAX, GFP_KERNEL);
if (!target_path) {
target_path = ERR_PTR(-ENOMEM);
@@ -167,7 +168,7 @@ cifs_symlink(struct inode *inode, struct dentry *direntry, const char *symname)
pTcon = cifs_sb->tcon;
down(&inode->i_sb->s_vfs_rename_sem);
- full_path = build_path_from_dentry(direntry);
+ full_path = build_path_from_dentry(direntry, cifs_sb);
up(&inode->i_sb->s_vfs_rename_sem);
if(full_path == NULL) {
@@ -233,7 +234,7 @@ cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen)
/* BB would it be safe against deadlock to grab this sem
even though rename itself grabs the sem and calls lookup? */
/* down(&inode->i_sb->s_vfs_rename_sem);*/
- full_path = build_path_from_dentry(direntry);
+ full_path = build_path_from_dentry(direntry, cifs_sb);
/* up(&inode->i_sb->s_vfs_rename_sem);*/
if(full_path == NULL) {
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 072b4ee8c53e..20ae4153f791 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -611,6 +611,7 @@ cifsConvertToUCS(__le16 * target, const char *source, int maxlen,
src_char = source[i];
switch (src_char) {
case 0:
+ target[j] = 0;
goto ctoUCS_out;
case ':':
target[j] = cpu_to_le16(UNI_COLON);
diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c
index a92af41d4411..873b812c0f40 100644
--- a/fs/cifs/netmisc.c
+++ b/fs/cifs/netmisc.c
@@ -133,7 +133,6 @@ static const struct smb_to_posix_error mapping_table_ERRHRD[] = {
int
cifs_inet_pton(int address_family, char *cp,void *dst)
{
- struct in_addr address;
int value;
int digit;
int i;
@@ -190,8 +189,7 @@ cifs_inet_pton(int address_family, char *cp,void *dst)
if (value > addr_class_max[end - bytes])
return 0;
- address.s_addr = *((__be32 *) bytes) | htonl(value);
- *((__be32 *)dst) = address.s_addr;
+ *((__be32 *)dst) = *((__be32 *) bytes) | htonl(value);
return 1; /* success */
}
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 22557716f9af..dec3c9dd04d7 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -148,6 +148,13 @@ static void fill_in_inode(struct inode *tmp_inode,
tmp_inode->i_mode = cifs_sb->mnt_dir_mode;
}
tmp_inode->i_mode |= S_IFDIR;
+ } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) &&
+ (attr & ATTR_SYSTEM) && (end_of_file == 0)) {
+ *pobject_type = DT_FIFO;
+ tmp_inode->i_mode |= S_IFIFO;
+/* BB Finish for SFU style symlinks and devies */
+/* } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) &&
+ (attr & ATTR_SYSTEM) && ) { */
/* we no longer mark these because we could not follow them */
/* } else if (attr & ATTR_REPARSE) {
*pobject_type = DT_LNK;
@@ -190,8 +197,9 @@ static void fill_in_inode(struct inode *tmp_inode,
tmp_inode->i_data.a_ops = &cifs_addr_ops;
if(isNewInode)
- return; /* No sense invalidating pages for new inode since we
- have not started caching readahead file data yet */
+ return; /* No sense invalidating pages for new inode
+ since have not started caching readahead file
+ data yet */
if (timespec_equal(&tmp_inode->i_mtime, &local_mtime) &&
(local_size == tmp_inode->i_size)) {
@@ -353,7 +361,7 @@ static int initiate_cifs_search(const int xid, struct file *file)
return -EINVAL;
down(&file->f_dentry->d_sb->s_vfs_rename_sem);
- full_path = build_path_from_dentry(file->f_dentry);
+ full_path = build_path_from_dentry(file->f_dentry, cifs_sb);
up(&file->f_dentry->d_sb->s_vfs_rename_sem);
if(full_path == NULL) {
@@ -374,7 +382,7 @@ ffirst_retry:
rc = CIFSFindFirst(xid, pTcon,full_path,cifs_sb->local_nls,
&cifsFile->netfid, &cifsFile->srch_inf,
- cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
+ cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR, CIFS_DIR_SEP(cifs_sb));
if(rc == 0)
cifsFile->invalidHandle = FALSE;
if((rc == -EOPNOTSUPP) &&
@@ -536,7 +544,8 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon,
while((index_to_find >= cifsFile->srch_inf.index_of_last_entry) &&
(rc == 0) && (cifsFile->srch_inf.endOfSearch == FALSE)){
cFYI(1,("calling findnext2"));
- rc = CIFSFindNext(xid,pTcon,cifsFile->netfid, &cifsFile->srch_inf);
+ rc = CIFSFindNext(xid,pTcon,cifsFile->netfid,
+ &cifsFile->srch_inf);
if(rc)
return -ENOENT;
}
@@ -555,7 +564,7 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon,
cFYI(1,("found entry - pos_in_buf %d",pos_in_buf));
current_entry = cifsFile->srch_inf.srch_entries_start;
for(i=0;(i<(pos_in_buf)) && (current_entry != NULL);i++) {
- /* go entry to next entry figuring out which we need to start with */
+ /* go entry by entry figuring out which is first */
/* if( . or ..)
skip */
rc = cifs_entry_is_dot(current_entry,cifsFile);
@@ -721,7 +730,8 @@ static int cifs_filldir(char *pfindEntry, struct file *file,
(FILE_DIRECTORY_INFO *)pfindEntry,&obj_type, rc);
}
- rc = filldir(direntry,qstring.name,qstring.len,file->f_pos,tmp_inode->i_ino,obj_type);
+ rc = filldir(direntry,qstring.name,qstring.len,file->f_pos,
+ tmp_inode->i_ino,obj_type);
if(rc) {
cFYI(1,("filldir rc = %d",rc));
}
@@ -906,7 +916,8 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir)
cifs_save_resume_key(current_entry,cifsFile);
break;
} else
- current_entry = nxt_dir_entry(current_entry,end_of_smb);
+ current_entry = nxt_dir_entry(current_entry,
+ end_of_smb);
}
kfree(tmp_buf);
break;
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 0046c219833d..496a2738bbe3 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -49,7 +49,8 @@ AllocMidQEntry(struct smb_hdr *smb_buffer, struct cifsSesInfo *ses)
return NULL;
}
- temp = (struct mid_q_entry *) mempool_alloc(cifs_mid_poolp,SLAB_KERNEL | SLAB_NOFS);
+ temp = (struct mid_q_entry *) mempool_alloc(cifs_mid_poolp,
+ SLAB_KERNEL | SLAB_NOFS);
if (temp == NULL)
return temp;
else {
@@ -179,27 +180,24 @@ smb_send(struct socket *ssocket, struct smb_hdr *smb_buffer,
return rc;
}
-#ifdef CIFS_EXPERIMENTAL
-/* BB finish off this function, adding support for writing set of pages as iovec */
-/* and also adding support for operations that need to parse the response smb */
-
-int
-smb_sendv(struct socket *ssocket, struct smb_hdr *smb_buffer,
- unsigned int smb_buf_length, struct kvec * write_vector
- /* page list */, struct sockaddr *sin)
+#ifdef CONFIG_CIFS_EXPERIMENTAL
+static int
+smb_send2(struct socket *ssocket, struct smb_hdr *smb_buffer,
+ unsigned int smb_hdr_length, const char * data, unsigned int datalen,
+ struct sockaddr *sin)
{
int rc = 0;
int i = 0;
struct msghdr smb_msg;
- number_of_pages += 1; /* account for SMB header */
- struct kvec * piov = kmalloc(number_of_pages * sizeof(struct kvec));
- unsigned len = smb_buf_length + 4;
-
+ struct kvec iov[2];
+ unsigned len = smb_hdr_length + 4;
+
if(ssocket == NULL)
return -ENOTSOCK; /* BB eventually add reconnect code here */
- iov.iov_base = smb_buffer;
- iov.iov_len = len;
-
+ iov[0].iov_base = smb_buffer;
+ iov[0].iov_len = len;
+ iov[1].iov_base = data;
+ iov[1].iov_len = datalen;
smb_msg.msg_name = sin;
smb_msg.msg_namelen = sizeof (struct sockaddr);
smb_msg.msg_control = NULL;
@@ -212,12 +210,12 @@ smb_sendv(struct socket *ssocket, struct smb_hdr *smb_buffer,
Flags2 is converted in SendReceive */
smb_buffer->smb_buf_length = cpu_to_be32(smb_buffer->smb_buf_length);
- cFYI(1, ("Sending smb of length %d ", smb_buf_length));
+ cFYI(1, ("Sending smb: hdrlen %d datalen %d",
+ smb_hdr_length,datalen));
dump_smb(smb_buffer, len);
- while (len > 0) {
- rc = kernel_sendmsg(ssocket, &smb_msg, &iov, number_of_pages,
- len);
+ while (len + datalen > 0) {
+ rc = kernel_sendmsg(ssocket, &smb_msg, iov, 2, len);
if ((rc == -ENOSPC) || (rc == -EAGAIN)) {
i++;
if(i > 60) {
@@ -232,9 +230,23 @@ smb_sendv(struct socket *ssocket, struct smb_hdr *smb_buffer,
}
if (rc < 0)
break;
- iov.iov_base += rc;
- iov.iov_len -= rc;
- len -= rc;
+ if(iov[0].iov_len > 0) {
+ if(rc >= len) {
+ iov[0].iov_len = 0;
+ rc -= len;
+ len = 0;
+ } else { /* some of hdr was not sent */
+ len -= rc;
+ iov[0].iov_len -= rc;
+ iov[0].iov_base += rc;
+ continue;
+ }
+ }
+ if((iov[0].iov_len == 0) && (rc > 0)){
+ iov[1].iov_base += rc;
+ iov[1].iov_len -= rc;
+ datalen -= rc;
+ }
}
if (rc < 0) {
@@ -246,14 +258,15 @@ smb_sendv(struct socket *ssocket, struct smb_hdr *smb_buffer,
return rc;
}
-
int
-CIFSSendRcv(const unsigned int xid, struct cifsSesInfo *ses,
- struct smb_hdr *in_buf, struct kvec * write_vector /* page list */, int *pbytes_returned, const int long_op)
+SendReceive2(const unsigned int xid, struct cifsSesInfo *ses,
+ struct smb_hdr *in_buf, int hdrlen, const char * data,
+ int datalen, int *pbytes_returned, const int long_op)
{
int rc = 0;
- unsigned long timeout = 15 * HZ;
- struct mid_q_entry *midQ = NULL;
+ unsigned int receive_len;
+ unsigned long timeout;
+ struct mid_q_entry *midQ;
if (ses == NULL) {
cERROR(1,("Null smb session"));
@@ -263,14 +276,8 @@ CIFSSendRcv(const unsigned int xid, struct cifsSesInfo *ses,
cERROR(1,("Null tcp session"));
return -EIO;
}
- if(pbytes_returned == NULL)
- return -EIO;
- else
- *pbytes_returned = 0;
-
-
- if(ses->server->tcpStatus == CIFS_EXITING)
+ if(ses->server->tcpStatus == CifsExiting)
return -ENOENT;
/* Ensure that we do not send more than 50 overlapping requests
@@ -282,7 +289,8 @@ CIFSSendRcv(const unsigned int xid, struct cifsSesInfo *ses,
} else {
spin_lock(&GlobalMid_Lock);
while(1) {
- if(atomic_read(&ses->server->inFlight) >= cifs_max_pending){
+ if(atomic_read(&ses->server->inFlight) >=
+ cifs_max_pending){
spin_unlock(&GlobalMid_Lock);
wait_event(ses->server->request_q,
atomic_read(&ses->server->inFlight)
@@ -314,17 +322,17 @@ CIFSSendRcv(const unsigned int xid, struct cifsSesInfo *ses,
if (ses->server->tcpStatus == CifsExiting) {
rc = -ENOENT;
- goto cifs_out_label;
+ goto out_unlock2;
} else if (ses->server->tcpStatus == CifsNeedReconnect) {
cFYI(1,("tcp session dead - return to caller to retry"));
rc = -EAGAIN;
- goto cifs_out_label;
+ goto out_unlock2;
} else if (ses->status != CifsGood) {
/* check if SMB session is bad because we are setting it up */
if((in_buf->Command != SMB_COM_SESSION_SETUP_ANDX) &&
(in_buf->Command != SMB_COM_NEGOTIATE)) {
rc = -EAGAIN;
- goto cifs_out_label;
+ goto out_unlock2;
} /* else ok - we are setting up session */
}
midQ = AllocMidQEntry(in_buf, ses);
@@ -352,13 +360,12 @@ CIFSSendRcv(const unsigned int xid, struct cifsSesInfo *ses,
return -EIO;
}
- /* BB can we sign efficiently in this path? */
- rc = cifs_sign_smb(in_buf, ses->server, &midQ->sequence_number);
+/* BB FIXME */
+/* rc = cifs_sign_smb2(in_buf, data, ses->server, &midQ->sequence_number); */
midQ->midState = MID_REQUEST_SUBMITTED;
-/* rc = smb_sendv(ses->server->ssocket, in_buf, in_buf->smb_buf_length,
- piovec,
- (struct sockaddr *) &(ses->server->addr.sockAddr));*/
+ rc = smb_send2(ses->server->ssocket, in_buf, hdrlen, data, datalen,
+ (struct sockaddr *) &(ses->server->addr.sockAddr));
if(rc < 0) {
DeleteMidQEntry(midQ);
up(&ses->server->tcpSem);
@@ -370,19 +377,137 @@ CIFSSendRcv(const unsigned int xid, struct cifsSesInfo *ses,
return rc;
} else
up(&ses->server->tcpSem);
-cifs_out_label:
- if(midQ)
- DeleteMidQEntry(midQ);
-
+ if (long_op == -1)
+ goto cifs_no_response_exit2;
+ else if (long_op == 2) /* writes past end of file can take loong time */
+ timeout = 300 * HZ;
+ else if (long_op == 1)
+ timeout = 45 * HZ; /* should be greater than
+ servers oplock break timeout (about 43 seconds) */
+ else if (long_op > 2) {
+ timeout = MAX_SCHEDULE_TIMEOUT;
+ } else
+ timeout = 15 * HZ;
+ /* wait for 15 seconds or until woken up due to response arriving or
+ due to last connection to this server being unmounted */
+ if (signal_pending(current)) {
+ /* if signal pending do not hold up user for full smb timeout
+ but we still give response a change to complete */
+ timeout = 2 * HZ;
+ }
+
+ /* No user interrupts in wait - wreaks havoc with performance */
+ if(timeout != MAX_SCHEDULE_TIMEOUT) {
+ timeout += jiffies;
+ wait_event(ses->server->response_q,
+ (!(midQ->midState & MID_REQUEST_SUBMITTED)) ||
+ time_after(jiffies, timeout) ||
+ ((ses->server->tcpStatus != CifsGood) &&
+ (ses->server->tcpStatus != CifsNew)));
+ } else {
+ wait_event(ses->server->response_q,
+ (!(midQ->midState & MID_REQUEST_SUBMITTED)) ||
+ ((ses->server->tcpStatus != CifsGood) &&
+ (ses->server->tcpStatus != CifsNew)));
+ }
+
+ spin_lock(&GlobalMid_Lock);
+ if (midQ->resp_buf) {
+ spin_unlock(&GlobalMid_Lock);
+ receive_len = be32_to_cpu(*(__be32 *)midQ->resp_buf);
+ } else {
+ cERROR(1,("No response buffer"));
+ if(midQ->midState == MID_REQUEST_SUBMITTED) {
+ if(ses->server->tcpStatus == CifsExiting)
+ rc = -EHOSTDOWN;
+ else {
+ ses->server->tcpStatus = CifsNeedReconnect;
+ midQ->midState = MID_RETRY_NEEDED;
+ }
+ }
+
+ if (rc != -EHOSTDOWN) {
+ if(midQ->midState == MID_RETRY_NEEDED) {
+ rc = -EAGAIN;
+ cFYI(1,("marking request for retry"));
+ } else {
+ rc = -EIO;
+ }
+ }
+ spin_unlock(&GlobalMid_Lock);
+ DeleteMidQEntry(midQ);
+ /* If not lock req, update # of requests on wire to server */
+ if(long_op < 3) {
+ atomic_dec(&ses->server->inFlight);
+ wake_up(&ses->server->request_q);
+ }
+ return rc;
+ }
+
+ if (receive_len > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE) {
+ cERROR(1, ("Frame too large received. Length: %d Xid: %d",
+ receive_len, xid));
+ rc = -EIO;
+ } else { /* rcvd frame is ok */
+
+ if (midQ->resp_buf &&
+ (midQ->midState == MID_RESPONSE_RECEIVED)) {
+ in_buf->smb_buf_length = receive_len;
+ /* BB verify that length would not overrun small buf */
+ memcpy((char *)in_buf + 4,
+ (char *)midQ->resp_buf + 4,
+ receive_len);
+
+ dump_smb(in_buf, 80);
+ /* convert the length into a more usable form */
+ if((receive_len > 24) &&
+ (ses->server->secMode & (SECMODE_SIGN_REQUIRED |
+ SECMODE_SIGN_ENABLED))) {
+ rc = cifs_verify_signature(in_buf,
+ ses->server->mac_signing_key,
+ midQ->sequence_number+1);
+ if(rc) {
+ cERROR(1,("Unexpected SMB signature"));
+ /* BB FIXME add code to kill session */
+ }
+ }
+
+ *pbytes_returned = in_buf->smb_buf_length;
+
+ /* BB special case reconnect tid and uid here? */
+ rc = map_smb_to_linux_error(in_buf);
+
+ /* convert ByteCount if necessary */
+ if (receive_len >=
+ sizeof (struct smb_hdr) -
+ 4 /* do not count RFC1001 header */ +
+ (2 * in_buf->WordCount) + 2 /* bcc */ )
+ BCC(in_buf) = le16_to_cpu(BCC(in_buf));
+ } else {
+ rc = -EIO;
+ cFYI(1,("Bad MID state? "));
+ }
+ }
+cifs_no_response_exit2:
+ DeleteMidQEntry(midQ);
+
if(long_op < 3) {
- atomic_dec(&ses->server->inFlight);
+ atomic_dec(&ses->server->inFlight);
wake_up(&ses->server->request_q);
}
return rc;
-}
+out_unlock2:
+ up(&ses->server->tcpSem);
+ /* If not lock req, update # of requests on wire to server */
+ if(long_op < 3) {
+ atomic_dec(&ses->server->inFlight);
+ wake_up(&ses->server->request_q);
+ }
+ return rc;
+}
#endif /* CIFS_EXPERIMENTAL */
int
diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c
index c1e02eff1d25..f4fc8ddebba7 100644
--- a/fs/cifs/xattr.c
+++ b/fs/cifs/xattr.c
@@ -63,7 +63,7 @@ int cifs_removexattr(struct dentry * direntry, const char * ea_name)
pTcon = cifs_sb->tcon;
down(&sb->s_vfs_rename_sem);
- full_path = build_path_from_dentry(direntry);
+ full_path = build_path_from_dentry(direntry, cifs_sb);
up(&sb->s_vfs_rename_sem);
if(full_path == NULL) {
FreeXid(xid);
@@ -118,7 +118,7 @@ int cifs_setxattr(struct dentry * direntry, const char * ea_name,
pTcon = cifs_sb->tcon;
down(&sb->s_vfs_rename_sem);
- full_path = build_path_from_dentry(direntry);
+ full_path = build_path_from_dentry(direntry, cifs_sb);
up(&sb->s_vfs_rename_sem);
if(full_path == NULL) {
FreeXid(xid);
@@ -227,7 +227,7 @@ ssize_t cifs_getxattr(struct dentry * direntry, const char * ea_name,
pTcon = cifs_sb->tcon;
down(&sb->s_vfs_rename_sem);
- full_path = build_path_from_dentry(direntry);
+ full_path = build_path_from_dentry(direntry, cifs_sb);
up(&sb->s_vfs_rename_sem);
if(full_path == NULL) {
FreeXid(xid);
@@ -328,7 +328,7 @@ ssize_t cifs_listxattr(struct dentry * direntry, char * data, size_t buf_size)
pTcon = cifs_sb->tcon;
down(&sb->s_vfs_rename_sem);
- full_path = build_path_from_dentry(direntry);
+ full_path = build_path_from_dentry(direntry, cifs_sb);
up(&sb->s_vfs_rename_sem);
if(full_path == NULL) {
FreeXid(xid);
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