summaryrefslogtreecommitdiff
path: root/fs/cifs/cifssmb.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/cifs/cifssmb.c')
-rw-r--r--fs/cifs/cifssmb.c183
1 files changed, 92 insertions, 91 deletions
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 2f2632b6df5..67acfb3acad 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -2478,95 +2478,6 @@ querySymLinkRetry:
}
#ifdef CONFIG_CIFS_EXPERIMENTAL
-/* Initialize NT TRANSACT SMB into small smb request buffer.
- This assumes that all NT TRANSACTS that we init here have
- total parm and data under about 400 bytes (to fit in small cifs
- buffer size), which is the case so far, it easily fits. NB:
- Setup words themselves and ByteCount
- MaxSetupCount (size of returned setup area) and
- MaxParameterCount (returned parms size) must be set by caller */
-static int
-smb_init_nttransact(const __u16 sub_command, const int setup_count,
- const int parm_len, struct cifsTconInfo *tcon,
- void **ret_buf)
-{
- int rc;
- __u32 temp_offset;
- struct smb_com_ntransact_req *pSMB;
-
- rc = small_smb_init(SMB_COM_NT_TRANSACT, 19 + setup_count, tcon,
- (void **)&pSMB);
- if (rc)
- return rc;
- *ret_buf = (void *)pSMB;
- pSMB->Reserved = 0;
- pSMB->TotalParameterCount = cpu_to_le32(parm_len);
- pSMB->TotalDataCount = 0;
- pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf -
- MAX_CIFS_HDR_SIZE) & 0xFFFFFF00);
- pSMB->ParameterCount = pSMB->TotalParameterCount;
- pSMB->DataCount = pSMB->TotalDataCount;
- temp_offset = offsetof(struct smb_com_ntransact_req, Parms) +
- (setup_count * 2) - 4 /* for rfc1001 length itself */;
- pSMB->ParameterOffset = cpu_to_le32(temp_offset);
- pSMB->DataOffset = cpu_to_le32(temp_offset + parm_len);
- pSMB->SetupCount = setup_count; /* no need to le convert byte fields */
- pSMB->SubCommand = cpu_to_le16(sub_command);
- return 0;
-}
-
-static int
-validate_ntransact(char *buf, char **ppparm, char **ppdata,
- __u32 *pparmlen, __u32 *pdatalen)
-{
- char *end_of_smb;
- __u32 data_count, data_offset, parm_count, parm_offset;
- struct smb_com_ntransact_rsp *pSMBr;
-
- *pdatalen = 0;
- *pparmlen = 0;
-
- if (buf == NULL)
- return -EINVAL;
-
- pSMBr = (struct smb_com_ntransact_rsp *)buf;
-
- /* ByteCount was converted from little endian in SendReceive */
- end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount +
- (char *)&pSMBr->ByteCount;
-
- data_offset = le32_to_cpu(pSMBr->DataOffset);
- data_count = le32_to_cpu(pSMBr->DataCount);
- parm_offset = le32_to_cpu(pSMBr->ParameterOffset);
- parm_count = le32_to_cpu(pSMBr->ParameterCount);
-
- *ppparm = (char *)&pSMBr->hdr.Protocol + parm_offset;
- *ppdata = (char *)&pSMBr->hdr.Protocol + data_offset;
-
- /* should we also check that parm and data areas do not overlap? */
- if (*ppparm > end_of_smb) {
- cFYI(1, "parms start after end of smb");
- return -EINVAL;
- } else if (parm_count + *ppparm > end_of_smb) {
- cFYI(1, "parm end after end of smb");
- return -EINVAL;
- } else if (*ppdata > end_of_smb) {
- cFYI(1, "data starts after end of smb");
- return -EINVAL;
- } else if (data_count + *ppdata > end_of_smb) {
- cFYI(1, "data %p + count %d (%p) past smb end %p start %p",
- *ppdata, data_count, (data_count + *ppdata),
- end_of_smb, pSMBr);
- return -EINVAL;
- } else if (parm_count + data_count > pSMBr->ByteCount) {
- cFYI(1, "parm count and data count larger than SMB");
- return -EINVAL;
- }
- *pdatalen = data_count;
- *pparmlen = parm_count;
- return 0;
-}
-
int
CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon,
const unsigned char *searchName,
@@ -3056,7 +2967,97 @@ GetExtAttrOut:
#endif /* CONFIG_POSIX */
-#ifdef CONFIG_CIFS_EXPERIMENTAL
+#ifdef CONFIG_CIFS_ACL
+/*
+ * Initialize NT TRANSACT SMB into small smb request buffer. This assumes that
+ * all NT TRANSACTS that we init here have total parm and data under about 400
+ * bytes (to fit in small cifs buffer size), which is the case so far, it
+ * easily fits. NB: Setup words themselves and ByteCount MaxSetupCount (size of
+ * returned setup area) and MaxParameterCount (returned parms size) must be set
+ * by caller
+ */
+static int
+smb_init_nttransact(const __u16 sub_command, const int setup_count,
+ const int parm_len, struct cifsTconInfo *tcon,
+ void **ret_buf)
+{
+ int rc;
+ __u32 temp_offset;
+ struct smb_com_ntransact_req *pSMB;
+
+ rc = small_smb_init(SMB_COM_NT_TRANSACT, 19 + setup_count, tcon,
+ (void **)&pSMB);
+ if (rc)
+ return rc;
+ *ret_buf = (void *)pSMB;
+ pSMB->Reserved = 0;
+ pSMB->TotalParameterCount = cpu_to_le32(parm_len);
+ pSMB->TotalDataCount = 0;
+ pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf -
+ MAX_CIFS_HDR_SIZE) & 0xFFFFFF00);
+ pSMB->ParameterCount = pSMB->TotalParameterCount;
+ pSMB->DataCount = pSMB->TotalDataCount;
+ temp_offset = offsetof(struct smb_com_ntransact_req, Parms) +
+ (setup_count * 2) - 4 /* for rfc1001 length itself */;
+ pSMB->ParameterOffset = cpu_to_le32(temp_offset);
+ pSMB->DataOffset = cpu_to_le32(temp_offset + parm_len);
+ pSMB->SetupCount = setup_count; /* no need to le convert byte fields */
+ pSMB->SubCommand = cpu_to_le16(sub_command);
+ return 0;
+}
+
+static int
+validate_ntransact(char *buf, char **ppparm, char **ppdata,
+ __u32 *pparmlen, __u32 *pdatalen)
+{
+ char *end_of_smb;
+ __u32 data_count, data_offset, parm_count, parm_offset;
+ struct smb_com_ntransact_rsp *pSMBr;
+
+ *pdatalen = 0;
+ *pparmlen = 0;
+
+ if (buf == NULL)
+ return -EINVAL;
+
+ pSMBr = (struct smb_com_ntransact_rsp *)buf;
+
+ /* ByteCount was converted from little endian in SendReceive */
+ end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount +
+ (char *)&pSMBr->ByteCount;
+
+ data_offset = le32_to_cpu(pSMBr->DataOffset);
+ data_count = le32_to_cpu(pSMBr->DataCount);
+ parm_offset = le32_to_cpu(pSMBr->ParameterOffset);
+ parm_count = le32_to_cpu(pSMBr->ParameterCount);
+
+ *ppparm = (char *)&pSMBr->hdr.Protocol + parm_offset;
+ *ppdata = (char *)&pSMBr->hdr.Protocol + data_offset;
+
+ /* should we also check that parm and data areas do not overlap? */
+ if (*ppparm > end_of_smb) {
+ cFYI(1, "parms start after end of smb");
+ return -EINVAL;
+ } else if (parm_count + *ppparm > end_of_smb) {
+ cFYI(1, "parm end after end of smb");
+ return -EINVAL;
+ } else if (*ppdata > end_of_smb) {
+ cFYI(1, "data starts after end of smb");
+ return -EINVAL;
+ } else if (data_count + *ppdata > end_of_smb) {
+ cFYI(1, "data %p + count %d (%p) past smb end %p start %p",
+ *ppdata, data_count, (data_count + *ppdata),
+ end_of_smb, pSMBr);
+ return -EINVAL;
+ } else if (parm_count + data_count > pSMBr->ByteCount) {
+ cFYI(1, "parm count and data count larger than SMB");
+ return -EINVAL;
+ }
+ *pdatalen = data_count;
+ *pparmlen = parm_count;
+ return 0;
+}
+
/* Get Security Descriptor (by handle) from remote server for a file or dir */
int
CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid,
@@ -3214,7 +3215,7 @@ setCifsAclRetry:
return (rc);
}
-#endif /* CONFIG_CIFS_EXPERIMENTAL */
+#endif /* CONFIG_CIFS_ACL */
/* Legacy Query Path Information call for lookup to old servers such
as Win9x/WinME */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 02:35:15 +0000