| | 1 | /* frob-rls.c |
| | 2 | * GBL_RLS flag manipulator. |
| | 3 | * NetWatch system management mode administration console |
| | 4 | * |
| | 5 | * Copyright (c) 2008 Jacob Potter and Joshua Wise. All rights reserved. |
| | 6 | * This program is free software; you can redistribute and/or modify it under |
| | 7 | * the terms found in the file LICENSE in the root of this source tree. |
| | 8 | * |
| | 9 | */ |
| | 10 | |
| | 11 | #include <sys/io.h> |
| | 12 | #include <reg-82801b.h> |
| | 13 | #include <string.h> |
| | 14 | #include <stdint.h> |
| | 15 | #include <stdlib.h> |
| | 16 | |
| | 17 | static uint16_t _get_PMBASE() |
| | 18 | { |
| | 19 | static long pmbase = -1; |
| | 20 | |
| | 21 | if (pmbase == -1) |
| | 22 | pmbase = pci_read32(ICH2_LPC_BUS, ICH2_LPC_DEV, ICH2_LPC_FN, ICH2_LPC_PCI_PMBASE) & ICH2_PMBASE_MASK; |
| | 23 | |
| | 24 | return pmbase; |
| | 25 | } |
| | 26 | |
| | 27 | typedef struct { |
| | 28 | uint32_t signature; |
| | 29 | uint32_t type; |
| | 30 | uint8_t data[]; |
| | 31 | } packet_t; |
| | 32 | |
| | 33 | extern unsigned int poke(unsigned long addr, unsigned long * value); |
| | 34 | |
| | 35 | int main(int argc, char **argv) |
| | 36 | { |
| | 37 | unsigned int res; |
| | 38 | packet_t * packet = (packet_t *)memalign(4096, sizeof(packet_t)); |
| | 39 | |
| | 40 | packet->signature = 0x1BADD00D; |
| | 41 | packet->type = 0xAA; |
| | 42 | strcpy(packet->data, "hello, world!"); |
| | 43 | |
| | 44 | if (iopl(3) < 0) |
| | 45 | { |
| | 46 | perror("iopl"); |
| | 47 | return 1; |
| | 48 | } |
| | 49 | |
| | 50 | res = poke(_get_PMBASE() + 0x04, (void *)packet); |
| | 51 | printf("returned %p\n", res); |
| | 52 | |
| | 53 | if (res == 42) { |
| | 54 | int i; |
| | 55 | for (i = 0; i < 96; i++) |
| | 56 | printf("%s\n", packet->data + i * 41); |
| | 57 | } |
| | 58 | } |
git.joshuawise.com / netwatch.git / blame_incremental