struct acpi_table_header *ap_get_table_from_file(char *pathname,
u32 *out_file_size)
{
struct acpi_table_header *buffer = NULL;
ACPI_FILE file;
u32 file_size;
size_t actual;
/* Must use binary mode */
file =
acpi_os_open_file(pathname, ACPI_FILE_READING | ACPI_FILE_BINARY);
if (!file) {
acpi_log_error("Could not open input file: %s\n", pathname);
return (NULL);
}
/* Need file size to allocate a buffer */
file_size = cm_get_file_size(file);
if (file_size == ACPI_UINT32_MAX) {
acpi_log_error("Could not get input file size: %s\n", pathname);
goto cleanup;
}
/* Allocate a buffer for the entire file */
buffer = ACPI_ALLOCATE_ZEROED(file_size);
if (!buffer) {
acpi_log_error("Could not allocate file buffer of size: %u\n",
file_size);
goto cleanup;
}
/* Read the entire file */
actual = acpi_os_read_file(file, buffer, 1, file_size);
if (actual != file_size) {
acpi_log_error("Could not read input file: %s\n", pathname);
ACPI_FREE(buffer);
buffer = NULL;
goto cleanup;
}
*out_file_size = file_size;
cleanup:
acpi_os_close_file(file);
return (buffer);
}
u8 ap_is_valid_header(struct acpi_table_header *table)
{
if (!ACPI_VALIDATE_RSDP_SIG(table->signature)) {
/* Make sure signature is all ASCII and a valid ACPI name */
if (!acpi_ut_valid_acpi_name(table->signature)) {
acpi_log_error("Table signature (0x%8.8X) is invalid\n",
*(u32 *)table->signature);
return (FALSE);
}
/* Check for minimum table length */
if (table->length < sizeof(struct acpi_table_header)) {
acpi_log_error("Table length (0x%8.8X) is invalid\n",
table->length);
return (FALSE);
}
}
return (TRUE);
}
static int ap_is_existing_file(char *pathname)
{
#ifndef _GNU_EFI
struct stat stat_info;
if (!stat(pathname, &stat_info)) {
acpi_log_error("Target path already exists, overwrite? [y|n] ");
if (getchar() != 'y') {
return (-1);
}
}
#endif
return 0;
}
static int ap_insert_action(char *argument, u32 to_be_done)
{
/* Insert action and check for table overflow */
action_table[current_action].argument = argument;
action_table[current_action].to_be_done = to_be_done;
current_action++;
if (current_action > AP_MAX_ACTIONS) {
acpi_log_error("Too many table options (max %u)\n",
AP_MAX_ACTIONS);
return (-1);
}
return (0);
}
int ap_open_output_file(char *pathname)
{
ACPI_FILE file;
/* If file exists, prompt for overwrite */
if (ap_is_existing_file(pathname) != 0) {
return (-1);
}
/* Point stdout to the file */
file = acpi_os_open_file(pathname, ACPI_FILE_WRITING);
if (!file) {
acpi_log_error("Could not open output file: %s\n", pathname);
return (-1);
}
/* Save the file and path */
gbl_output_file = file;
gbl_output_filename = pathname;
return (0);
}
int ap_write_to_binary_file(struct acpi_table_header *table, u32 instance)
{
char filename[ACPI_NAME_SIZE + 16];
char instance_str[16];
ACPI_FILE file;
size_t actual;
u32 table_length;
/* Obtain table length */
table_length = ap_get_table_length(table);
/* Construct lower-case filename from the table local signature */
if (ACPI_VALIDATE_RSDP_SIG(table->signature)) {
ACPI_MOVE_NAME(filename, ACPI_RSDP_NAME);
} else {
ACPI_MOVE_NAME(filename, table->signature);
}
filename[0] = (char)ACPI_TOLOWER(filename[0]);
filename[1] = (char)ACPI_TOLOWER(filename[1]);
filename[2] = (char)ACPI_TOLOWER(filename[2]);
filename[3] = (char)ACPI_TOLOWER(filename[3]);
filename[ACPI_NAME_SIZE] = 0;
/* Handle multiple SSDts - create different filenames for each */
if (instance > 0) {
acpi_ut_snprintf(instance_str, sizeof(instance_str), "%u",
instance);
ACPI_STRCAT(filename, instance_str);
}
ACPI_STRCAT(filename, ACPI_TABLE_FILE_SUFFIX);
if (gbl_verbose_mode) {
acpi_log_error
("Writing [%4.4s] to binary file: %s 0x%X (%u) bytes\n",
table->signature, filename, table->length, table->length);
}
/* Open the file and dump the entire table in binary mode */
file = acpi_os_open_file(filename,
ACPI_FILE_WRITING | ACPI_FILE_BINARY);
if (!file) {
acpi_log_error("Could not open output file: %s\n", filename);
return (-1);
}
actual = acpi_os_write_file(file, table, 1, table_length);
if (actual != table_length) {
acpi_log_error("Error writing binary output file: %s\n",
filename);
acpi_os_close_file(file);
return (-1);
}
acpi_os_close_file(file);
return (0);
}
int ACPI_SYSTEM_XFACE acpi_main(int argc, char *argv[])
#endif
{
int status = 0;
struct ap_dump_action *action;
u32 file_size;
u32 i;
ACPI_DEBUG_INITIALIZE(); /* For debug version only */
acpi_os_initialize();
gbl_output_file = ACPI_FILE_OUT;
/* Process command line options */
status = ap_do_options(argc, argv);
if (status > 0) {
return (0);
}
if (status < 0) {
return (status);
}
/* Get/dump ACPI table(s) as requested */
for (i = 0; i < current_action; i++) {
action = &action_table[i];
switch (action->to_be_done) {
case AP_DUMP_ALL_TABLES:
status = ap_dump_all_tables();
break;
case AP_DUMP_TABLE_BY_ADDRESS:
status = ap_dump_table_by_address(action->argument);
break;
case AP_DUMP_TABLE_BY_NAME:
status = ap_dump_table_by_name(action->argument);
break;
case AP_DUMP_TABLE_BY_FILE:
status = ap_dump_table_from_file(action->argument);
break;
default:
acpi_log_error("Internal error, invalid action: 0x%X\n",
action->to_be_done);
return (-1);
}
if (status) {
return (status);
}
}
if (gbl_output_filename) {
if (gbl_verbose_mode) {
/* Summary for the output file */
file_size = cm_get_file_size(gbl_output_file);
acpi_log_error
("Output file %s contains 0x%X (%u) bytes\n\n",
gbl_output_filename, file_size, file_size);
}
acpi_os_close_file(gbl_output_file);
}
return (status);
}
static int ap_do_options(int argc, char **argv)
{
int j;
acpi_status status;
/* Command line options */
while ((j =
acpi_getopt(argc, argv, AP_SUPPORTED_OPTIONS)) != ACPI_OPT_END)
switch (j) {
/*
* Global options
*/
case 'b': /* Dump all input tables to binary files */
gbl_binary_mode = TRUE;
continue;
case 'c': /* Dump customized tables */
if (!strcmp(acpi_gbl_optarg, "on")) {
gbl_dump_customized_tables = TRUE;
} else if (!strcmp(acpi_gbl_optarg, "off")) {
gbl_dump_customized_tables = FALSE;
} else {
acpi_log_error
("%s: Cannot handle this switch, please use on|off\n",
acpi_gbl_optarg);
return (-1);
}
continue;
case 'h':
case '?':
ap_display_usage();
return (1);
case 'o': /* Redirect output to a single file */
if (ap_open_output_file(acpi_gbl_optarg)) {
return (-1);
}
continue;
case 'r': /* Dump tables from specified RSDP */
status =
acpi_ut_strtoul64(acpi_gbl_optarg, 0,
&gbl_rsdp_base);
if (ACPI_FAILURE(status)) {
acpi_log_error
("%s: Could not convert to a physical address\n",
acpi_gbl_optarg);
return (-1);
}
continue;
case 's': /* Print table summaries only */
gbl_summary_mode = TRUE;
continue;
case 'x': /* Do not use XSDT */
if (!acpi_gbl_do_not_use_xsdt) {
acpi_gbl_do_not_use_xsdt = TRUE;
} else {
gbl_do_not_dump_xsdt = TRUE;
}
continue;
case 'v': /* Revision/version */
acpi_os_printf(ACPI_COMMON_SIGNON(AP_UTILITY_NAME));
return (1);
case 'z': /* Verbose mode */
gbl_verbose_mode = TRUE;
acpi_log_error(ACPI_COMMON_SIGNON(AP_UTILITY_NAME));
continue;
/*
* Table options
*/
case 'a': /* Get table by physical address */
if (ap_insert_action
(acpi_gbl_optarg, AP_DUMP_TABLE_BY_ADDRESS)) {
return (-1);
}
break;
case 'f': /* Get table from a file */
if (ap_insert_action
(acpi_gbl_optarg, AP_DUMP_TABLE_BY_FILE)) {
return (-1);
}
break;
case 'n': /* Get table by input name (signature) */
if (ap_insert_action
(acpi_gbl_optarg, AP_DUMP_TABLE_BY_NAME)) {
return (-1);
}
break;
default:
ap_display_usage();
return (-1);
}
/* If there are no actions, this means "get/dump all tables" */
if (current_action == 0) {
if (ap_insert_action(NULL, AP_DUMP_ALL_TABLES)) {
return (-1);
}
}
return (0);
}
