1 /* ----------------------------------------------------------------------- * 2 * 3 * Copyright 2008 H. Peter Anvin - All Rights Reserved 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 8 * Boston MA 02110-1301, USA; either version 2 of the License, or 9 * (at your option) any later version; incorporated herein by reference. 10 * 11 * ----------------------------------------------------------------------- */ 12 13 /* 14 * sanboot.c 15 * 16 * Invoke the gPXE "sanboot" command, if available. 17 */ 18 19 #include <alloca.h> 20 #include <inttypes.h> 21 #include <stdio.h> 22 #include <console.h> 23 #include <com32.h> 24 #include <string.h> 25 26 #include <sys/gpxe.h> 27 #include <syslinux/pxe_api.h> 28 29 struct segoff16 { 30 uint16_t offs, seg; 31 }; 32 33 struct s_PXENV_FILE_EXEC { 34 uint16_t Status; 35 struct segoff16 Command; 36 }; 37 38 static void sanboot(const char **args) 39 { 40 char *q; 41 struct s_PXENV_FILE_EXEC *fx; 42 43 fx = lmalloc(sizeof *fx); 44 if (!fx) 45 return; 46 47 q = (char *)(fx + 1); 48 49 fx->Status = 1; 50 fx->Command.offs = OFFS(q); 51 fx->Command.seg = SEG(q); 52 53 q = stpcpy(q, "sanboot"); 54 55 while (*args) { 56 *q++ = ' '; 57 q = stpcpy(q, *args); 58 args++; 59 } 60 61 pxe_call(PXENV_FILE_EXEC, fx); 62 63 /* This should not return... */ 64 } 65 66 int main(int argc, const char *argv[]) 67 { 68 if (argc < 2) { 69 printf("Usage: sanboot rootpath\n"); 70 return 1; 71 } 72 73 if (!is_gpxe()) { 74 printf("sanboot: gPXE API not detected\n"); 75 return 1; 76 } 77 78 sanboot(argv + 1); 79 80 /* sanboot() should not return... */ 81 printf("SAN boot failed.\n"); 82 return 1; 83 } 84
