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Diffstat (limited to 'contrib/syslinux/latest/core/parseconfig.inc')
| -rw-r--r-- | contrib/syslinux/latest/core/parseconfig.inc | 477 |
1 files changed, 0 insertions, 477 deletions
diff --git a/contrib/syslinux/latest/core/parseconfig.inc b/contrib/syslinux/latest/core/parseconfig.inc deleted file mode 100644 index 69681d9..0000000 --- a/contrib/syslinux/latest/core/parseconfig.inc +++ /dev/null @@ -1,477 +0,0 @@ -;; ----------------------------------------------------------------------- -;; -;; Copyright 1994-2009 H. Peter Anvin - All Rights Reserved -;; Copyright 2009 Intel Corporation; author: H. Peter Anvin -;; -;; This program is free software; you can redistribute it and/or modify -;; it under the terms of the GNU General Public License as published by -;; the Free Software Foundation, Inc., 53 Temple Place Ste 330, -;; Boston MA 02111-1307, USA; either version 2 of the License, or -;; (at your option) any later version; incorporated herein by reference. -;; -;; ----------------------------------------------------------------------- - -;; -;; parseconfig.inc -;; -;; Configuration file operations -;; - - section .text16 -; -; "default" or "ui" command, with level (1 = default, 2 = ui) -; -pc_default: cmp ax,[DefaultLevel] - jb skipline ; == call skipline + ret - mov [DefaultLevel],ax - mov di,default_cmd - call getline - mov byte [di-1],0 ; null-terminate - ret - -; -; "ontimeout" command -; -pc_ontimeout: mov di,Ontimeout - call getline - sub di,Ontimeout+1 ; Don't need final space - mov [OntimeoutLen],di - ret - -; -; "onerror" command -; -pc_onerror: mov di,Onerror - call getline - sub di,Onerror - mov [OnerrorLen],di - ret - -; -; "append" command -; -pc_append: cmp byte [VKernel],0 - ja .vk - mov di,AppendBuf - call getline - sub di,AppendBuf -.app1: mov [AppendLen],di - ret -.vk: mov di,VKernelBuf+vk_append ; "append" command (vkernel) - call getline - sub di,VKernelBuf+vk_append - cmp di,byte 2 - jne .app2 - cmp byte [VKernelBuf+vk_append],'-' - jne .app2 - xor di,di ; If "append -" -> null string -.app2: mov [VKernelBuf+vk_appendlen],di - ret - -; -; "ipappend" command (PXELINUX only) -; -%if IS_PXELINUX -pc_ipappend: call getint - jc .err - cmp byte [VKernel],0 - jne .vk - mov [IPAppend],bl -.err: ret -.vk: mov [VKernelBuf+vk_ipappend],bl - ret -%endif - -; -; "localboot" command -; -%if HAS_LOCALBOOT - -pc_localboot: call getint - cmp byte [VKernel],0 ; ("label" section only) - je .err - mov [VKernelBuf+vk_rname],bx - mov byte [VKernelBuf+vk_type],VK_LOCALBOOT -.err: ret - -%endif ; HAS_LOCALBOOT - -; -; "kernel", "config", ... command -; -pc_kernel: cmp byte [VKernel],0 - je .err ; ("label" section only) - mov [VKernelBuf+vk_type],al - call pc_getline - mov di,VKernelBuf+vk_rname - pm_call pm_mangle_name -.err: ret - -; -; "timeout", "totaltimeout" command -; -; N.B. 1/10 s ~ 1.D2162AABh clock ticks -; -pc_timeout: push ax - call getint - pop si - jc .err - mov eax,0D2162AABh - mul ebx ; clock ticks per 1/10 s - add ebx,edx - mov [si],ebx -.err: ret - - -; -; "totaltimeout" command -; -pc_totaltimeout: - -; -; Generic integer variable setting commands: -; "prompt", "implicit" -; -pc_setint16: - push ax - call getint - pop si - jc .err - mov [si],bx -.err: ret - -; -; Generic file-processing commands: -; "font", "kbdmap", -; -pc_filecmd: push ax ; Function to tailcall - call pc_getline - mov di,MNameBuf - pm_call pm_mangle_name - pm_call pm_searchdir - jnz .ok - pop ax ; Drop the successor function -.ok: ret ; Tailcall if OK, error return - -; -; Commands that expect the file to be opened on top of the getc stack. -; "display", "include" -; -pc_opencmd: push ax ; Function to tailcall - call pc_getline - mov di,MNameBuf - pm_call pm_mangle_name - call core_open - jnz .ok - pop ax ; Drop the successor function -.ok: ret ; Tailcall if OK, error return - -; -; "include" command (invoked from pc_opencmd) -; -pc_include: inc word [IncludeLevel] -.err: ret - -; -; "serial" command -; -pc_serial: call getint - jc .err - push bx ; Serial port # - xor eax,eax - mov [FlowControl],eax ; Default to no flow control - call skipspace - jc .nobaud - call ungetc - call getint - jc .nobaud -.valid_baud: - push ebx - call skipspace - jc .no_flow - call ungetc - call getint ; Hardware flow control? - jnc .valid_flow -.no_flow: - xor bx,bx ; Default -> no flow control -.valid_flow: - and bh,0Fh ; FlowIgnore - shl bh,4 - mov [FlowIgnore],bh - mov bh,bl - and bx,0F00Bh ; Valid bits - mov [FlowControl],bx - pop ebx ; Baud rate - jmp short .parse_baud -.nobaud: - mov ebx,DEFAULT_BAUD ; No baud rate given -.parse_baud: - pop di ; Serial port # - cmp ebx,byte 75 - jb .err ; < 75 baud == bogus - mov eax,BAUD_DIVISOR - cdq - div ebx - mov [BaudDivisor],ax - push ax ; Baud rate divisor - cmp di,3 - ja .port_is_io ; If port > 3 then port is I/O addr - shl di,1 - mov di,[di+serial_base] ; Get the I/O port from the BIOS -.port_is_io: - mov [SerialPort],di - - ; - ; Begin code to actually set up the serial port - ; - call sirq_cleanup_nowipe ; Cleanup existing IRQ handler - - lea dx,[di+3] ; DX -> LCR - mov al,83h ; Enable DLAB - slow_out dx,al - - pop ax ; Divisor - mov dx,di ; DX -> LS - slow_out dx,al - - inc dx ; DX -> MS - mov al,ah - slow_out dx,al - - mov al,03h ; Disable DLAB - inc dx ; DX -> LCR - inc dx - slow_out dx,al - - in al,dx ; Read back LCR (detect missing hw) - cmp al,03h ; If nothing here we'll read 00 or FF - jne .err ; Assume serial port busted - dec dx ; DX -> IIR/FCR - mov al,01h - slow_out dx,al ; Enable FIFOs if present - in al,dx - cmp al,0C0h ; FIFOs enabled and usable? - jae .fifo_ok - xor ax,ax ; Disable FIFO if unusable - slow_out dx,al -.fifo_ok: - - inc dx - inc dx ; DX -> MCR - mov al,[FlowOutput] ; Assert bits - slow_out dx,al - - ; Enable interrupts if requested - test al,8 - jz .noirq - call sirq_install -.noirq: - - ; Show some life - cmp byte [SerialNotice],0 - je .notfirst - mov byte [SerialNotice],0 - - mov si,syslinux_banner - call write_serial_str - mov si,copyright_str - call write_serial_str -.notfirst: - ret - -.err: - mov [SerialPort], word 0 - ret - -; -; Store mangled filename command (F-keys, "initrd") -; -pc_filename: push ax - call pc_getline - pop di - pm_call pm_mangle_name ; Mangle file name - ret - -; -; "label" command -; -pc_label: call commit_vk ; Commit any current vkernel - mov byte [InitRD+NULLOFFSET],NULLFILE ; No "initrd" statement - mov di,VKernelBuf ; Erase the vkernelbuf for better compression - mov cx,(vk_size >> 1) - xor ax,ax - rep stosw - call pc_getline - mov di,VKernelBuf+vk_vname - mov cx,FILENAME_MAX-1 -.loop: - lodsb - cmp al,' ' - jna .done - stosb - loop .loop -.done: - mov byte [VKernel],1 ; We've seen a "label" statement - mov si,VKernelBuf+vk_vname ; By default, rname == mangled vname - mov di,VKernelBuf+vk_rname - pm_call pm_mangle_name - mov si,AppendBuf ; Default append==global append - mov di,VKernelBuf+vk_append - mov cx,[AppendLen] - mov [VKernelBuf+vk_appendlen],cx - rep movsb -%if IS_PXELINUX ; PXELINUX only - mov al,[IPAppend] ; Default ipappend==global ipappend - mov [VKernelBuf+vk_ipappend],al -%endif - ret - -; -; "say" command -; -pc_say: call pc_getline ; "say" command - call writestr - jmp crlf ; tailcall - -; -; "text" command; ignore everything until we get an "endtext" line -; -pc_text: call skipline ; Ignore rest of line -.loop: - call pc_getline - jc .eof - - ; Leading spaces are already removed... - lodsd - and eax,0xdfdfdfdf ; Upper case - cmp eax,'ENDT' - jne .loop - lodsd - and eax,0x00dfdfdf ; Upper case and mask - cmp eax,'EXT' - jne .loop - ; If we get here we hit ENDTEXT -.eof: - ret - -; -; Comment line -; -pc_comment: ; Fall into pc_getline - -; -; Common subroutine: load line into trackbuf; returns with SI -> trackbuf -; CF is set on EOF. -; -pc_getline: mov di,trackbuf - push di - call getline - mov byte [di],0 ; Null-terminate - pop si - ret - -; -; Main loop for configuration file parsing -; -parse_config: - mov di,VKernelBuf ; Clear VKernelBuf at start - xor ax,ax - mov cx,vk_size - rep stosb - -.again: - call getcommand ; Parse one command - jnc .again ; If not EOF... - call close - dec word [IncludeLevel] ; Still parsing? - jnz .again - - ; - ; The fall through to commit_vk to commit any final - ; VKernel being read - ; -; -; commit_vk: Store the current VKernelBuf into buffer segment -; -commit_vk: - cmp byte [VKernel],0 - jz .nolabel ; Nothing to commit... - - mov di,VKernelBuf+vk_append - add di,[VKernelBuf+vk_appendlen] - - ; If we have an initrd statement, append it to the - ; append statement - cmp byte [InitRD+NULLOFFSET],NULLFILE - je .noinitrd - - mov si,str_initrd - mov cx,7 ; "initrd=" - rep movsb - mov si,InitRD - call strcpy - mov byte [es:di-1],' ' - - ; For better compression, clean up the append field -.noinitrd: - mov ax,di - sub ax,VKernelBuf+vk_append - mov [VKernelBuf+vk_appendlen],ax - mov cx,max_cmd_len+1 - sub cx,ax - xor ax,ax - rep stosb - - ; Pack into high memory - mov esi,VKernelBuf - mov edi,[VKernelEnd] - mov ecx,vk_size - pm_call rllpack - mov [VKernelEnd],edi -.nolabel: - ret -.overflow: - mov si,vk_overflow_msg - call writestr - ret - - section .data16 -vk_overflow_msg db 'Out of memory parsing config file', CR, LF, 0 -SerialNotice db 1 ; Only print this once - - section .bss16 - alignb 4 -VKernelEnd resd 1 ; Lowest high memory address used - - ; This symbol should be used by loaders to indicate - ; the highest address *they* are allowed to use. -HighMemRsvd equ VKernelEnd - ; by vkernels - section .config - alignz 4 -KbdTimeout dd 0 ; Keyboard timeout (if any) -TotalTimeout dd 0 ; Total timeout (if any) -AppendLen dw 0 ; Bytes in append= command -OntimeoutLen dw 0 ; Bytes in ontimeout command -OnerrorLen dw 0 ; Bytes in onerror command -CmdLinePtr dw cmd_line_here ; Command line advancing pointer -ForcePrompt dw 0 ; Force prompt -NoEscape dw 0 ; No escape -NoComplete dw 0 ; No label completion on TAB key -AllowImplicit dw 1 ; Allow implicit kernels -AllowOptions dw 1 ; User-specified options allowed -IncludeLevel dw 1 ; Nesting level -DefaultLevel dw 0 ; The current level of default - global PXERetry -PXERetry dw 0 ; Extra PXE retries -VKernel db 0 ; Have we seen any "label" statements? - -%if IS_PXELINUX -IPAppend db 0 ; Default IPAPPEND option -%endif - - section .uibss - alignb 4 ; For the good of REP MOVSD -command_line resb max_cmd_len+2 ; Command line buffer - alignb 4 -default_cmd resb max_cmd_len+1 ; "default" command line |