diff options
Diffstat (limited to 'source')
| -rw-r--r-- | source/smbd/reply.c | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/source/smbd/reply.c b/source/smbd/reply.c index 4f3c12e984b..8347daf26bb 100644 --- a/source/smbd/reply.c +++ b/source/smbd/reply.c @@ -39,6 +39,21 @@ unsigned int smb_echo_count = 0; extern BOOL global_encrypted_passwords_negotiated; /**************************************************************************** + Ensure we check the path in the same way as W2K. +****************************************************************************/ + +static NTSTATUS check_path_syntax(const char *name) +{ + while (*name == '\\') + name++; + if (strequal(name, ".")) + return NT_STATUS_OBJECT_NAME_INVALID; + else if (strequal(name, "..")) + return NT_STATUS_OBJECT_PATH_SYNTAX_BAD; + return NT_STATUS_OK; +} + +/**************************************************************************** Reply to a special message. ****************************************************************************/ @@ -379,10 +394,16 @@ int reply_chkpth(connection_struct *conn, char *inbuf,char *outbuf, int dum_size BOOL ok = False; BOOL bad_path = False; SMB_STRUCT_STAT sbuf; + NTSTATUS status; + START_PROFILE(SMBchkpth); srvstr_pull_buf(inbuf, name, smb_buf(inbuf) + 1, sizeof(name), STR_TERMINATE); + status = check_path_syntax(name); + if (!NT_STATUS_IS_OK(status)) + return ERROR_NT(status); + RESOLVE_DFSPATH(name, conn, inbuf, outbuf); unix_convert(name,conn,0,&bad_path,&sbuf); @@ -1234,10 +1255,6 @@ static NTSTATUS can_delete(char *fname,connection_struct *conn, int dirtype) if (!CAN_WRITE(conn)) return NT_STATUS_MEDIA_WRITE_PROTECTED; - /* Can't delete the root. */ - if (strequal(fname, "./..") || strequal(fname, "./../")) - return NT_STATUS_OBJECT_PATH_SYNTAX_BAD; - if (SMB_VFS_LSTAT(conn,fname,&sbuf) != 0) return NT_STATUS_OBJECT_NAME_NOT_FOUND; @@ -1402,6 +1419,10 @@ int reply_unlink(connection_struct *conn, char *inbuf,char *outbuf, int dum_size srvstr_pull_buf(inbuf, name, smb_buf(inbuf) + 1, sizeof(name), STR_TERMINATE); + status = check_path_syntax(name); + if (!NT_STATUS_IS_OK(status)) + return ERROR_NT(status); + RESOLVE_DFSPATH(name, conn, inbuf, outbuf); DEBUG(3,("reply_unlink : %s\n",name)); |