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Revision ccce101b32ae26dd180ecaebe95cc749c2f90373, 1.9 KB
(checked in by H. Peter Anvin <hpa@…>, 23 months ago)
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pxelinux: new IPAPPEND 4 to generate a SYSUUID= option.
Add a new IPAPPEND option to generate a SYSUUID= option with the
in-system UUID.
Signed-off-by: H. Peter Anvin <hpa@…>
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| 1 | ;; ----------------------------------------------------------------------- |
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| 2 | ;; |
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| 3 | ;; Copyright 2003-2009 H. Peter Anvin - All Rights Reserved |
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| 4 | ;; Copyright 2009 Intel Corporation; author: H. Peter Anvin |
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| 5 | ;; |
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| 6 | ;; This program is free software; you can redistribute it and/or modify |
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| 7 | ;; it under the terms of the GNU General Public License as published by |
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| 8 | ;; the Free Software Foundation, Inc., 53 Temple Place Ste 330, |
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| 9 | ;; Boston MA 02111-1307, USA; either version 2 of the License, or |
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| 10 | ;; (at your option) any later version; incorporated herein by reference. |
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| 11 | ;; |
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| 12 | ;; ----------------------------------------------------------------------- |
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| 13 | |
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| 14 | ;; |
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| 15 | ;; cmdline.inc |
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| 16 | ;; |
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| 17 | ;; Common routine to assemble [null-terminated] command line into |
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| 18 | ;; real_mode_seg:cmd_line_here. |
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| 19 | ;; Not used by plain kernel due to BOOT_IMAGE= etc. |
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| 20 | ;; |
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| 21 | |
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| 22 | section .text16 |
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| 23 | |
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| 24 | ; |
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| 25 | ; Assumes DS == CS |
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| 26 | ; |
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| 27 | make_plain_cmdline: |
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| 28 | push es |
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| 29 | ; ui.inc has already copied any APPEND options |
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| 30 | mov ax,real_mode_seg |
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| 31 | mov es,ax |
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| 32 | |
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| 33 | mov di,[CmdLinePtr] |
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| 34 | call do_ip_append |
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| 35 | |
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| 36 | mov si,[CmdOptPtr] |
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| 37 | |
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| 38 | call strcpy |
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| 39 | |
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| 40 | dec di |
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| 41 | mov [CmdLinePtr],di |
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| 42 | mov byte [es:di],0 ; Null-terminate |
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| 43 | |
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| 44 | pop es |
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| 45 | ret |
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| 46 | |
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| 47 | ; |
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| 48 | ; Actual IPAppend strings... |
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| 49 | ; |
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| 50 | %if IS_PXELINUX |
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| 51 | extern IPOption, BOOTIFStr, SYSUUIDStr |
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| 52 | global IPAppends, numIPAppends |
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| 53 | |
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| 54 | section .data16 |
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| 55 | alignz 2 |
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| 56 | IPAppends dw IPOption |
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| 57 | dw BOOTIFStr |
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| 58 | dw SYSUUIDStr |
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| 59 | numIPAppends equ ($-IPAppends)/2 |
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| 60 | %else |
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| 61 | IPAppends equ 0 |
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| 62 | numIPAppends equ 0 |
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| 63 | %endif |
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| 64 | |
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| 65 | ; |
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| 66 | ; Handle "ipappend" strings, if applicable |
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| 67 | ; |
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| 68 | ; Assumes DS == CS; pushes output to ES:DI |
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| 69 | ; |
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| 70 | section .text16 |
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| 71 | |
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| 72 | do_ip_append: |
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| 73 | %ifndef DEPEND |
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| 74 | %if numIPAppends > 0 |
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| 75 | push cx |
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| 76 | push bx |
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| 77 | push si |
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| 78 | |
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| 79 | mov bx,IPAppends |
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| 80 | mov cx,[IPAppend] |
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| 81 | and cx,(1 << numIPAppends)-1 |
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| 82 | .loop: |
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| 83 | jcxz .done |
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| 84 | mov si,[bx] |
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| 85 | inc bx |
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| 86 | inc bx |
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| 87 | test cl,1 |
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| 88 | jz .not_this |
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| 89 | |
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| 90 | call strcpy |
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| 91 | mov byte [es:di-1],' ' ; Replace final null with space |
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| 92 | .not_this: |
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| 93 | shr cx,1 |
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| 94 | jmp .loop |
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| 95 | .done: |
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| 96 | pop si |
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| 97 | pop bx |
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| 98 | pop cx |
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| 99 | %endif |
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| 100 | %endif |
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| 101 | ret |
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