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/*
* cab.c: main program for the tool to Check A Blob of ACPI tables
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file "COPYING" in the main directory of this
* archive for more details.
*
* Copyright (c) 2013, Al Stone <al.stone@linaro.org>
*
* NB: all values are assumed to be little-endian in the blob.
*
*/
#include <build_aml.h>
#include <check_aml.h>
#include "cab.h"
static void usage(void)
{
printf("%s %s\n", PROGNAME, VERSION);
printf("usage: %s -b <blob> -p <paddr> [-q]\n", PROGNAME);
printf("\n");
printf(" -b <blob> => file name of input ACPI blob\n");
printf(" -p <paddr> => physical address used in relocation\n");
printf(" -q => if given, supress output\n");
}
int main(int argc, char *argv[])
{
int ii;
int size;
int fd;
unsigned char *blob;
char *acpi_blob_name;
char *paddr_cmd;
uint64_t paddr = 0;
struct table *np;
int opt;
int quiet;
int failed;
/* parameter handling */
acpi_blob_name = NULL;
paddr_cmd = NULL;
quiet = 0;
failed = 0;
while ((opt = getopt(argc, argv, "b:p:q")) != EOF) {
switch (opt) {
case 'b':
acpi_blob_name = optarg;
break;
case 'p':
paddr_cmd = optarg;
break;
case 'q':
quiet = 1;
break;
default:
usage();
return 1;
}
}
if (!quiet)
printf("%s %s\n", PROGNAME, VERSION);
if ((argc > (optind + 1)) || (acpi_blob_name == NULL)) {
printf("? missing a parameter value\n");
usage();
return 1;
}
if (paddr_cmd) {
errno = 0;
paddr = strtoull(paddr_cmd, NULL, 0);
if (errno) {
printf("invalid physical address given\n");
return 1;
} else {
printf("assume blob was relocated to 0x%llx\n",
(long long unsigned int)paddr);
}
} else {
printf("? missing required physical address parameter\n");
usage();
return 1;
}
size = get_file_size(acpi_blob_name);
if (!size) {
printf("? blob cannot be zero length\n");
exit(1);
}
fd = open(acpi_blob_name, O_RDONLY);
if (fd < 0) {
perror(PROGNAME);
exit(1);
}
blob = mmap(NULL, size, PROT_READ, MAP_PRIVATE, fd , 0);
if (blob == MAP_FAILED) {
perror(PROGNAME);
exit(1);
}
LIST_INIT(&thead);
check_blob_header(blob);
check_rsdp(blob);
find_all_tables(blob, size, paddr);
if (!quiet) {
printf("found the following tables....\n");
ii = 0;
LIST_FOREACH(np, &thead, tables) {
printf(
"[%03d] %4s: %d bytes @ 0x%08x, loads @ 0x%016llx\n",
ii, np->signature, np->len, np->offset,
(long long unsigned int)np->paddr);
ii++;
}
}
LIST_FOREACH(np, &thead, tables) {
if ((strncmp(np->signature, SIG_RSDP,
strlen(np->signature) != 0)) &&
(strncmp(np->signature, SIG_FACS,
strlen(np->signature) != 0))) {
printf("\nchecking header of %s...\n", np->signature);
check_table_header(np->signature, blob + np->offset);
}
}
check_relocations(blob, size, paddr);
failed = check_print_summary();
munmap(blob, size);
return (failed > 0) ? 1 : 0;
}
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