[CIFS] POSIX extensions, SetFSInfo added

Signed-off-by: Steve French@sfrench@us.ibm.com
Signed-off-by: Jeremy Allison (jra@samba.org)

1 files changed, 74 insertions, 3 deletions

diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index b31158a2643d..81c9d3f393f5 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -2416,7 +2416,7 @@ 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;
@@ -2443,7 +2443,7 @@ 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;
@@ -2457,7 +2457,7 @@ 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;
@@ -3265,6 +3265,77 @@ 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,