smbd: Implement SMB2_FILE_POSIX_INFORMATION in smbd_marshall_dir_entry

Signed-off-by: David Mulder <dmulder@suse.com>
Reviewed-by: Volker Lendecke <vl@samba.org>

diff --git a/source3/smbd/smb2_trans2.c b/source3/smbd/smb2_trans2.c
index e569fc24b199fa3c33544b6d3358b4b4ee942afc..a58341477c4d09c60706ab40ba700cc280d7cb6a 100644 (file)
--- a/source3/smbd/smb2_trans2.c
+++ b/source3/smbd/smb2_trans2.c
@@ -1904,6 +1904,72 @@ static NTSTATUS smbd_marshall_dir_entry(TALLOC_CTX *ctx,
 
                break;
 
+       /* SMB2 UNIX Extension. */
+
+       case SMB2_FILE_POSIX_INFORMATION:
+               {
+                       uint8_t *buf = NULL;
+                       ssize_t plen = 0;
+                       p+= 4;
+                       SIVAL(p,0,reskey); p+= 4;
+
+                       DEBUG(10,("smbd_marshall_dir_entry: "
+                                 "SMB2_FILE_POSIX_INFORMATION\n"));
+                       if (!(conn->sconn->using_smb2)) {
+                               return NT_STATUS_INVALID_LEVEL;
+                       }
+                       if (!lp_smb3_unix_extensions()) {
+                               return NT_STATUS_INVALID_LEVEL;
+                       }
+
+                       /* Determine the size of the posix info context */
+                       plen = store_smb2_posix_info(conn,
+                                                    &smb_fname->st,
+                                                    0,
+                                                    mode,
+                                                    NULL,
+                                                    0);
+                       if (plen == -1) {
+                               return NT_STATUS_INVALID_PARAMETER;
+                       }
+                       buf = talloc_zero_size(ctx, plen);
+                       if (buf == NULL) {
+                               return NT_STATUS_NO_MEMORY;
+                       }
+
+                       /* Store the context in buf */
+                       store_smb2_posix_info(conn,
+                                             &smb_fname->st,
+                                             0,
+                                             mode,
+                                             buf,
+                                             plen);
+                       memcpy(p, buf, plen);
+                       p += plen;
+                       TALLOC_FREE(buf);
+
+                       nameptr = p;
+                       p += 4;
+                       status = srvstr_push(base_data, flags2, p, fname,
+                                       PTR_DIFF(end_data, p), 0, &len);
+                       if (!NT_STATUS_IS_OK(status)) {
+                               return status;
+                       }
+                       SIVAL(nameptr, 0, len);
+
+                       p += len;
+
+                       len = PTR_DIFF(p, pdata);
+                       pad = (len + (align-1)) & ~(align-1);
+                       /*
+                        * offset to the next entry, the caller
+                        * will overwrite it for the last entry
+                        * that's why we always include the padding
+                        */
+                       SIVAL(pdata,0,pad);
+                       break;
+               }
+
        default:
                return NT_STATUS_INVALID_LEVEL;
        }