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Diffstat (limited to 'fs/cifs')
-rw-r--r--fs/cifs/cifs_debug.c2
-rw-r--r--fs/cifs/cifspdu.h22
-rw-r--r--fs/cifs/cifsproto.h1
-rw-r--r--fs/cifs/cifssmb.c62
-rw-r--r--fs/cifs/connect.c4
-rw-r--r--fs/cifs/misc.c4
-rw-r--r--fs/cifs/netmisc.c7
-rw-r--r--fs/cifs/sess.c2
-rw-r--r--fs/cifs/transport.c19
9 files changed, 41 insertions, 82 deletions
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 30d01bc90855..18f4272d9047 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -63,7 +63,7 @@ void cifs_dump_detail(struct smb_hdr *smb)
cERROR(1, "Cmd: %d Err: 0x%x Flags: 0x%x Flgs2: 0x%x Mid: %d Pid: %d",
smb->Command, smb->Status.CifsError,
smb->Flags, smb->Flags2, smb->Mid, smb->Pid);
- cERROR(1, "smb buf %p len %d", smb, smbCalcSize_LE(smb));
+ cERROR(1, "smb buf %p len %d", smb, smbCalcSize(smb));
}
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h
index eac95e26d696..291d735abaac 100644
--- a/fs/cifs/cifspdu.h
+++ b/fs/cifs/cifspdu.h
@@ -435,36 +435,18 @@ struct smb_hdr {
/* given a pointer to an smb_hdr retrieve the pointer to the byte area */
#define pByteArea(smb_var) (BCC(smb_var) + 2)
-/* get the converted ByteCount for a SMB packet and return it */
-static inline __u16
-get_bcc(struct smb_hdr *hdr)
-{
- __u16 *bc_ptr = (__u16 *)BCC(hdr);
-
- return get_unaligned(bc_ptr);
-}
-
/* get the unconverted ByteCount for a SMB packet and return it */
static inline __u16
-get_bcc_le(struct smb_hdr *hdr)
+get_bcc(struct smb_hdr *hdr)
{
__le16 *bc_ptr = (__le16 *)BCC(hdr);
return get_unaligned_le16(bc_ptr);
}
-/* set the ByteCount for a SMB packet in host-byte order */
-static inline void
-put_bcc(__u16 count, struct smb_hdr *hdr)
-{
- __u16 *bc_ptr = (__u16 *)BCC(hdr);
-
- put_unaligned(count, bc_ptr);
-}
-
/* set the ByteCount for a SMB packet in little-endian */
static inline void
-put_bcc_le(__u16 count, struct smb_hdr *hdr)
+put_bcc(__u16 count, struct smb_hdr *hdr)
{
__le16 *bc_ptr = (__le16 *)BCC(hdr);
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 7c1ed01d03f8..136d2f2febcc 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -93,7 +93,6 @@ extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
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_LE(struct smb_hdr *ptr);
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);
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 88004094ebd1..83df937b814e 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -582,7 +582,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) &&
(server->capabilities & CAP_EXTENDED_SECURITY)) {
- count = pSMBr->ByteCount;
+ count = get_bcc(&pSMBr->hdr);
if (count < 16) {
rc = -EIO;
goto neg_err_exit;
@@ -736,7 +736,7 @@ CIFSSMBEcho(struct TCP_Server_Info *server)
smb->hdr.Tid = 0xffff;
smb->hdr.WordCount = 1;
put_unaligned_le16(1, &smb->EchoCount);
- put_bcc_le(1, &smb->hdr);
+ put_bcc(1, &smb->hdr);
smb->Data[0] = 'a';
inc_rfc1001_len(smb, 3);
@@ -1079,7 +1079,7 @@ PsxCreat:
cFYI(1, "copying inode info");
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
- if (rc || (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP))) {
+ if (rc || get_bcc(&pSMBr->hdr) < sizeof(OPEN_PSX_RSP)) {
rc = -EIO; /* bad smb */
goto psx_create_err;
}
@@ -1100,7 +1100,7 @@ PsxCreat:
pRetData->Type = cpu_to_le32(-1); /* unknown */
cFYI(DBG2, "unknown type");
} else {
- if (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP)
+ if (get_bcc(&pSMBr->hdr) < sizeof(OPEN_PSX_RSP)
+ sizeof(FILE_UNIX_BASIC_INFO)) {
cERROR(1, "Open response data too small");
pRetData->Type = cpu_to_le32(-1);
@@ -1867,7 +1867,7 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,
__u16 data_count;
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
- if (rc || (pSMBr->ByteCount < sizeof(struct cifs_posix_lock))) {
+ if (rc || get_bcc(&pSMBr->hdr) < sizeof(*parm_data)) {
rc = -EIO; /* bad smb */
goto plk_err_exit;
}
@@ -2494,7 +2494,7 @@ querySymLinkRetry:
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
/* BB also check enough total bytes returned */
- if (rc || (pSMBr->ByteCount < 2))
+ if (rc || get_bcc(&pSMBr->hdr) < 2)
rc = -EIO;
else {
bool is_unicode;
@@ -2576,14 +2576,14 @@ CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon,
} else { /* decode response */
__u32 data_offset = le32_to_cpu(pSMBr->DataOffset);
__u32 data_count = le32_to_cpu(pSMBr->DataCount);
- if ((pSMBr->ByteCount < 2) || (data_offset > 512)) {
- /* BB also check enough total bytes returned */
+ if (get_bcc(&pSMBr->hdr) < 2 || data_offset > 512) {
+ /* BB also check enough total bytes returned */
rc = -EIO; /* bad smb */
goto qreparse_out;
}
if (data_count && (data_count < 2048)) {
char *end_of_smb = 2 /* sizeof byte count */ +
- pSMBr->ByteCount + (char *)&pSMBr->ByteCount;
+ get_bcc(&pSMBr->hdr) + (char *)&pSMBr->ByteCount;
struct reparse_data *reparse_buf =
(struct reparse_data *)
@@ -2841,8 +2841,8 @@ queryAclRetry:
/* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
- if (rc || (pSMBr->ByteCount < 2))
/* BB also check enough total bytes returned */
+ if (rc || get_bcc(&pSMBr->hdr) < 2)
rc = -EIO; /* bad smb */
else {
__u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
@@ -2991,8 +2991,8 @@ GetExtAttrRetry:
} else {
/* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
- if (rc || (pSMBr->ByteCount < 2))
/* BB also check enough total bytes returned */
+ if (rc || get_bcc(&pSMBr->hdr) < 2)
/* If rc should we check for EOPNOSUPP and
disable the srvino flag? or in caller? */
rc = -EIO; /* bad smb */
@@ -3067,6 +3067,7 @@ validate_ntransact(char *buf, char **ppparm, char **ppdata,
char *end_of_smb;
__u32 data_count, data_offset, parm_count, parm_offset;
struct smb_com_ntransact_rsp *pSMBr;
+ u16 bcc;
*pdatalen = 0;
*pparmlen = 0;
@@ -3076,8 +3077,8 @@ validate_ntransact(char *buf, char **ppparm, char **ppdata,
pSMBr = (struct smb_com_ntransact_rsp *)buf;
- /* ByteCount was converted from little endian in SendReceive */
- end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount +
+ bcc = get_bcc(&pSMBr->hdr);
+ end_of_smb = 2 /* sizeof byte count */ + bcc +
(char *)&pSMBr->ByteCount;
data_offset = le32_to_cpu(pSMBr->DataOffset);
@@ -3103,7 +3104,7 @@ validate_ntransact(char *buf, char **ppparm, char **ppdata,
*ppdata, data_count, (data_count + *ppdata),
end_of_smb, pSMBr);
return -EINVAL;
- } else if (parm_count + data_count > pSMBr->ByteCount) {
+ } else if (parm_count + data_count > bcc) {
cFYI(1, "parm count and data count larger than SMB");
return -EINVAL;
}
@@ -3389,7 +3390,7 @@ QFileInfoRetry:
if (rc) /* BB add auto retry on EOPNOTSUPP? */
rc = -EIO;
- else if (pSMBr->ByteCount < 40)
+ else if (get_bcc(&pSMBr->hdr) < 40)
rc = -EIO; /* bad smb */
else if (pFindData) {
__u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
@@ -3477,9 +3478,9 @@ QPathInfoRetry:
if (rc) /* BB add auto retry on EOPNOTSUPP? */
rc = -EIO;
- else if (!legacy && (pSMBr->ByteCount < 40))
+ else if (!legacy && get_bcc(&pSMBr->hdr) < 40)
rc = -EIO; /* bad smb */
- else if (legacy && (pSMBr->ByteCount < 24))
+ else if (legacy && get_bcc(&pSMBr->hdr) < 24)
rc = -EIO; /* 24 or 26 expected but we do not read
last field */
else if (pFindData) {
@@ -3555,7 +3556,7 @@ UnixQFileInfoRetry:
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
- if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) {
+ if (rc || get_bcc(&pSMBr->hdr) < sizeof(FILE_UNIX_BASIC_INFO)) {
cERROR(1, "Malformed FILE_UNIX_BASIC_INFO response.\n"
"Unix Extensions can be disabled on mount "
"by specifying the nosfu mount option.");
@@ -3641,7 +3642,7 @@ UnixQPathInfoRetry:
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
- if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) {
+ if (rc || get_bcc(&pSMBr->hdr) < sizeof(FILE_UNIX_BASIC_INFO)) {
cERROR(1, "Malformed FILE_UNIX_BASIC_INFO response.\n"
"Unix Extensions can be disabled on mount "
"by specifying the nosfu mount option.");
@@ -4046,8 +4047,8 @@ GetInodeNumberRetry:
} else {
/* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
- if (rc || (pSMBr->ByteCount < 2))
/* BB also check enough total bytes returned */
+ if (rc || get_bcc(&pSMBr->hdr) < 2)
/* If rc should we check for EOPNOSUPP and
disable the srvino flag? or in caller? */
rc = -EIO; /* bad smb */
@@ -4272,13 +4273,13 @@ getDFSRetry:
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
/* BB Also check if enough total bytes returned? */
- if (rc || (pSMBr->ByteCount < 17)) {
+ if (rc || get_bcc(&pSMBr->hdr) < 17) {
rc = -EIO; /* bad smb */
goto GetDFSRefExit;
}
cFYI(1, "Decoding GetDFSRefer response BCC: %d Offset %d",
- pSMBr->ByteCount,
+ get_bcc(&pSMBr->hdr),
le16_to_cpu(pSMBr->t2.DataOffset));
/* parse returned result into more usable form */
@@ -4344,12 +4345,12 @@ oldQFSInfoRetry:
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
- if (rc || (pSMBr->ByteCount < 18))
+ if (rc || get_bcc(&pSMBr->hdr) < 18)
rc = -EIO; /* bad smb */
else {
__u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
cFYI(1, "qfsinf resp BCC: %d Offset %d",
- pSMBr->ByteCount, data_offset);
+ get_bcc(&pSMBr->hdr), data_offset);
response_data = (FILE_SYSTEM_ALLOC_INFO *)
(((char *) &pSMBr->hdr.Protocol) + data_offset);
@@ -4423,7 +4424,7 @@ QFSInfoRetry:
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
- if (rc || (pSMBr->ByteCount < 24))
+ if (rc || get_bcc(&pSMBr->hdr) < 24)
rc = -EIO; /* bad smb */
else {
__u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
@@ -4503,7 +4504,7 @@ QFSAttributeRetry:
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
- if (rc || (pSMBr->ByteCount < 13)) {
+ if (rc || get_bcc(&pSMBr->hdr) < 13) {
/* BB also check if enough bytes returned */
rc = -EIO; /* bad smb */
} else {
@@ -4574,7 +4575,8 @@ QFSDeviceRetry:
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
- if (rc || (pSMBr->ByteCount < sizeof(FILE_SYSTEM_DEVICE_INFO)))
+ if (rc || get_bcc(&pSMBr->hdr) <
+ sizeof(FILE_SYSTEM_DEVICE_INFO))
rc = -EIO; /* bad smb */
else {
__u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
@@ -4643,7 +4645,7 @@ QFSUnixRetry:
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
- if (rc || (pSMBr->ByteCount < 13)) {
+ if (rc || get_bcc(&pSMBr->hdr) < 13) {
rc = -EIO; /* bad smb */
} else {
__u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
@@ -4788,7 +4790,7 @@ QFSPosixRetry:
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
- if (rc || (pSMBr->ByteCount < 13)) {
+ if (rc || get_bcc(&pSMBr->hdr) < 13) {
rc = -EIO; /* bad smb */
} else {
__u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
@@ -5517,7 +5519,7 @@ QAllEAsRetry:
of these trans2 responses */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
- if (rc || (pSMBr->ByteCount < 4)) {
+ if (rc || get_bcc(&pSMBr->hdr) < 4) {
rc = -EIO; /* bad smb */
goto QAllEAsOut;
}
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 5d331cdd0b27..2b511991187a 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -317,12 +317,12 @@ static int coalesce_t2(struct smb_hdr *psecond, struct smb_hdr *pTargetSMB)
put_unaligned_le16(total_in_buf, &pSMBt->t2_rsp.DataCount);
/* fix up the BCC */
- byte_count = get_bcc_le(pTargetSMB);
+ byte_count = get_bcc(pTargetSMB);
byte_count += total_in_buf2;
/* is the result too big for the field? */
if (byte_count > USHRT_MAX)
return -EPROTO;
- put_bcc_le(byte_count, pTargetSMB);
+ put_bcc(byte_count, pTargetSMB);
byte_count = be32_to_cpu(pTargetSMB->smb_buf_length);
byte_count += total_in_buf2;
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 533f863067e5..907531ac5888 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -462,7 +462,7 @@ checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length)
if (check_smb_hdr(smb, mid))
return 1;
- clc_len = smbCalcSize_LE(smb);
+ clc_len = smbCalcSize(smb);
if (4 + len != length) {
cERROR(1, "Length read does not match RFC1001 length %d",
@@ -519,7 +519,7 @@ is_valid_oplock_break(struct smb_hdr *buf, struct TCP_Server_Info *srv)
(struct smb_com_transaction_change_notify_rsp *)buf;
struct file_notify_information *pnotify;
__u32 data_offset = 0;
- if (get_bcc_le(buf) > sizeof(struct file_notify_information)) {
+ if (get_bcc(buf) > sizeof(struct file_notify_information)) {
data_offset = le32_to_cpu(pSMBr->DataOffset);
pnotify = (struct file_notify_information *)
diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c
index 79f641eeda30..79b71c2c7c9d 100644
--- a/fs/cifs/netmisc.c
+++ b/fs/cifs/netmisc.c
@@ -919,13 +919,6 @@ smbCalcSize(struct smb_hdr *ptr)
2 /* size of the bcc field */ + get_bcc(ptr));
}
-unsigned int
-smbCalcSize_LE(struct smb_hdr *ptr)
-{
- return (sizeof(struct smb_hdr) + (2 * ptr->WordCount) +
- 2 /* size of the bcc field */ + get_bcc_le(ptr));
-}
-
/* The following are taken from fs/ntfs/util.c */
#define NTFS_TIME_OFFSET ((u64)(369*365 + 89) * 24 * 3600 * 10000000)
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index 1daadade4d3c..7dd462100378 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -862,7 +862,7 @@ ssetup_ntlmssp_authenticate:
smb_buf->smb_buf_length =
cpu_to_be32(be32_to_cpu(smb_buf->smb_buf_length) + count);
- put_bcc_le(count, smb_buf);
+ put_bcc(count, smb_buf);
rc = SendReceive2(xid, ses, iov, 3 /* num_iovecs */, &resp_buf_type,
CIFS_LOG_ERROR);
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 19df0e5af122..f2513fb8c391 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -484,7 +484,7 @@ send_nt_cancel(struct TCP_Server_Info *server, struct smb_hdr *in_buf,
in_buf->smb_buf_length = cpu_to_be32(sizeof(struct smb_hdr) - 4 + 2);
in_buf->Command = SMB_COM_NT_CANCEL;
in_buf->WordCount = 0;
- put_bcc_le(0, in_buf);
+ put_bcc(0, in_buf);
mutex_lock(&server->srv_mutex);
rc = cifs_sign_smb(in_buf, server, &mid->sequence_number);
@@ -644,11 +644,6 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses,
rc = map_smb_to_linux_error(midQ->resp_buf,
flags & CIFS_LOG_ERROR);
- /* convert ByteCount if necessary */
- if (receive_len >= sizeof(struct smb_hdr) - 4
- /* do not count RFC1001 header */ +
- (2 * midQ->resp_buf->WordCount) + 2 /* bcc */ )
- put_bcc(get_bcc_le(midQ->resp_buf), midQ->resp_buf);
if ((flags & CIFS_NO_RESP) == 0)
midQ->resp_buf = NULL; /* mark it so buf will
not be freed by
@@ -798,12 +793,6 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses,
/* BB special case reconnect tid and uid here? */
rc = map_smb_to_linux_error(out_buf, 0 /* no log */ );
-
- /* convert ByteCount if necessary */
- if (receive_len >= sizeof(struct smb_hdr) - 4
- /* do not count RFC1001 header */ +
- (2 * out_buf->WordCount) + 2 /* bcc */ )
- put_bcc(get_bcc_le(midQ->resp_buf), midQ->resp_buf);
} else {
rc = -EIO;
cERROR(1, "Bad MID state?");
@@ -1012,12 +1001,6 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon,
/* BB special case reconnect tid and uid here? */
rc = map_smb_to_linux_error(out_buf, 0 /* no log */ );
- /* convert ByteCount if necessary */
- if (receive_len >= sizeof(struct smb_hdr) - 4
- /* do not count RFC1001 header */ +
- (2 * out_buf->WordCount) + 2 /* bcc */ )
- put_bcc(get_bcc_le(out_buf), out_buf);
-
out:
delete_mid(midQ);
if (rstart && rc == -EACCES)