diff options
| -rw-r--r-- | source3/smbd/nttrans.c | 174 |
1 files changed, 165 insertions, 9 deletions
diff --git a/source3/smbd/nttrans.c b/source3/smbd/nttrans.c index 3e5b07b887..f717efac63 100644 --- a/source3/smbd/nttrans.c +++ b/source3/smbd/nttrans.c @@ -1521,6 +1521,155 @@ int reply_ntcancel(connection_struct *conn, } /**************************************************************************** + Copy a file. +****************************************************************************/ + +static NTSTATUS copy_internals(connection_struct *conn, char *oldname, char *newname, uint16 attrs) +{ + BOOL bad_path_oldname = False; + BOOL bad_path_newname = False; + SMB_STRUCT_STAT sbuf1, sbuf2; + pstring last_component_oldname; + pstring last_component_newname; + files_struct *fsp1,*fsp2; + uint16 fmode; + int access_mode; + int smb_action; + SMB_OFF_T ret=-1; + int close_ret; + NTSTATUS status = NT_STATUS_OK; + + ZERO_STRUCT(sbuf1); + ZERO_STRUCT(sbuf2); + + /* No wildcards. */ + if (ms_has_wild(newname) || ms_has_wild(oldname)) { + return NT_STATUS_OBJECT_PATH_SYNTAX_BAD; + } + + if (!CAN_WRITE(conn)) + return NT_STATUS_MEDIA_WRITE_PROTECTED; + + unix_convert(oldname,conn,last_component_oldname,&bad_path_oldname,&sbuf1); + if (bad_path_oldname) { + return NT_STATUS_OBJECT_PATH_NOT_FOUND; + } + + /* Quick check for "." and ".." */ + if (last_component_oldname[0] == '.') { + if (!last_component_oldname[1] || (last_component_oldname[1] == '.' && !last_component_oldname[2])) { + return NT_STATUS_OBJECT_NAME_INVALID; + } + } + + /* Source must already exist. */ + if (!VALID_STAT(sbuf1)) { + return NT_STATUS_OBJECT_NAME_NOT_FOUND; + } + if (!check_name(oldname,conn)) { + return NT_STATUS_ACCESS_DENIED; + } + + /* Ensure attributes match. */ + fmode = dos_mode(conn,oldname,&sbuf1); + if ((fmode & ~attrs) & (aHIDDEN | aSYSTEM)) + return NT_STATUS_NO_SUCH_FILE; + + unix_convert(newname,conn,last_component_newname,&bad_path_newname,&sbuf2); + if (bad_path_newname) { + return NT_STATUS_OBJECT_PATH_NOT_FOUND; + } + + /* Quick check for "." and ".." */ + if (last_component_newname[0] == '.') { + if (!last_component_newname[1] || (last_component_newname[1] == '.' && !last_component_newname[2])) { + return NT_STATUS_OBJECT_NAME_INVALID; + } + } + + /* Disallow if newname already exists. */ + if (VALID_STAT(sbuf2)) { + return NT_STATUS_OBJECT_NAME_COLLISION; + } + + if (!check_name(newname,conn)) { + return NT_STATUS_ACCESS_DENIED; + } + + /* No links from a directory. */ + if (S_ISDIR(sbuf1.st_mode)) { + return NT_STATUS_FILE_IS_A_DIRECTORY; + } + + /* Ensure this is within the share. */ + if (!reduce_name(conn, oldname) != 0) { + return NT_STATUS_ACCESS_DENIED; + } + + DEBUG(10,("copy_internals: doing file copy %s to %s\n", oldname, newname)); + + fsp1 = open_file_shared1(conn,oldname,&sbuf1,FILE_READ_DATA,SET_DENY_MODE(DENY_ALL)|SET_OPEN_MODE(DOS_OPEN_RDONLY), + (FILE_FAIL_IF_NOT_EXIST|FILE_EXISTS_OPEN),FILE_ATTRIBUTE_NORMAL,0, + &access_mode,&smb_action); + + if (!fsp1) { + status = NT_STATUS_ACCESS_DENIED; + if (unix_ERR_class == ERRDOS && unix_ERR_code == ERRbadshare) + status = NT_STATUS_SHARING_VIOLATION; + unix_ERR_class = 0; + unix_ERR_code = 0; + unix_ERR_ntstatus = NT_STATUS_OK; + return status; + } + + fsp2 = open_file_shared1(conn,newname,&sbuf2,FILE_WRITE_DATA,SET_DENY_MODE(DENY_ALL)|SET_OPEN_MODE(DOS_OPEN_WRONLY), + (FILE_CREATE_IF_NOT_EXIST|FILE_EXISTS_FAIL),fmode,INTERNAL_OPEN_ONLY, + &access_mode,&smb_action); + + if (!fsp2) { + status = NT_STATUS_ACCESS_DENIED; + if (unix_ERR_class == ERRDOS && unix_ERR_code == ERRbadshare) + status = NT_STATUS_SHARING_VIOLATION; + unix_ERR_class = 0; + unix_ERR_code = 0; + unix_ERR_ntstatus = NT_STATUS_OK; + close_file(fsp1,False); + return status; + } + + if (sbuf1.st_size) + ret = vfs_transfer_file(fsp1, fsp2, sbuf1.st_size); + + /* + * As we are opening fsp1 read-only we only expect + * an error on close on fsp2 if we are out of space. + * Thus we don't look at the error return from the + * close of fsp1. + */ + close_file(fsp1,False); + + /* Ensure the modtime is set correctly on the destination file. */ + fsp2->pending_modtime = sbuf1.st_mtime; + + close_ret = close_file(fsp2,False); + + /* Grrr. We have to do this as open_file_shared1 adds aARCH when it + creates the file. This isn't the correct thing to do in the copy case. JRA */ + file_set_dosmode(conn, newname, fmode, &sbuf2); + + if (ret < (SMB_OFF_T)sbuf1.st_size) { + return NT_STATUS_DISK_FULL; + } + + if (close_ret != 0) { + status = map_nt_error_from_unix(close_ret); + DEBUG(3,("copy_internals: Error %s copy file %s to %s\n", + nt_errstr(status), oldname, newname)); + } + return status; +} + +/**************************************************************************** Reply to a NT rename request. ****************************************************************************/ @@ -1537,11 +1686,6 @@ int reply_ntrename(connection_struct *conn, START_PROFILE(SMBntrename); - if ((rename_type != RENAME_FLAG_RENAME) && (rename_type != RENAME_FLAG_HARD_LINK)) { - END_PROFILE(SMBntrename); - return ERROR_NT(NT_STATUS_ACCESS_DENIED); - } - p = smb_buf(inbuf) + 1; p += srvstr_get_path(inbuf, oldname, p, sizeof(oldname), 0, STR_TERMINATE, &status, True); if (!NT_STATUS_IS_OK(status)) { @@ -1572,10 +1716,22 @@ int reply_ntrename(connection_struct *conn, DEBUG(3,("reply_ntrename : %s -> %s\n",oldname,newname)); - if (rename_type == RENAME_FLAG_RENAME) { - status = rename_internals(conn, oldname, newname, attrs, False); - } else { - status = hardlink_internals(conn, oldname, newname); + switch(rename_type) { + case RENAME_FLAG_RENAME: + status = rename_internals(conn, oldname, newname, attrs, False); + break; + case RENAME_FLAG_HARD_LINK: + status = hardlink_internals(conn, oldname, newname); + break; + case RENAME_FLAG_COPY: + status = copy_internals(conn, oldname, newname, attrs); + break; + case RENAME_FLAG_MOVE_CLUSTER_INFORMATION: + status = NT_STATUS_INVALID_PARAMETER; + break; + default: + status = NT_STATUS_ACCESS_DENIED; /* Default error. */ + break; } if (!NT_STATUS_IS_OK(status)) { |