coreboot-kgpe-d16/util/amdfwtool/data_parse.c

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#include <stdio.h>
#include <regex.h>
#include <string.h>
#include <stdlib.h>
#include "amdfwtool.h"
/* TODO: a empty line does not matched. */
static const char blank_or_comment_regex[] =
/* a blank line */
"(^[[:space:]]*$)"
"|" /* or ... */
/* a line consisting of: optional whitespace followed by */
"(^[[:space:]]*"
/* a '#' character and optionally, additional characters */
"#.*$)";
static regex_t blank_or_comment_expr;
static const char entries_line_regex[] =
/* optional whitespace */
"^[[:space:]]*"
/* followed by a chunk of nonwhitespace for macro field */
"([^[:space:]]+)"
/* followed by one or more whitespace characters */
"[[:space:]]+"
/* followed by a chunk of nonwhitespace for filename field */
"([^[:space:]]+)"
/* followed by optional whitespace */
"[[:space:]]*$";
static regex_t entries_line_expr;
void compile_reg_expr(int cflags, const char *expr, regex_t *reg)
{
static const size_t ERROR_BUF_SIZE = 256;
char error_msg[ERROR_BUF_SIZE];
int result;
result = regcomp(reg, expr, cflags);
if (result != 0) {
regerror(result, reg, error_msg, ERROR_BUF_SIZE);
fprintf(stderr, "%s\n", error_msg);
}
}
extern amd_fw_entry amd_psp_fw_table[];
extern amd_bios_entry amd_bios_table[];
static uint8_t find_register_fw_filename_psp_dir(char *fw_name, char *filename,
amd_cb_config *cb_config)
{
amd_fw_type fw_type = AMD_FW_INVALID;
amd_fw_entry *psp_tableptr;
uint8_t subprog;
if (strcmp(fw_name, "PSPBTLDR_WL_FILE") == 0) {
if (cb_config->have_whitelist == 1) {
fw_type = AMD_FW_PSP_BOOTLOADER;
subprog = 0;
} else {
fw_type = AMD_FW_SKIP;
}
} else if (strcmp(fw_name, "PSPBTLDR_FILE") == 0) {
if (cb_config->have_whitelist == 0) {
fw_type = AMD_FW_PSP_BOOTLOADER;
subprog = 0;
} else {
fw_type = AMD_FW_SKIP;
}
} else if (strcmp(fw_name, "AMD_PUBKEY_FILE") == 0) {
fw_type = AMD_FW_PSP_PUBKEY;
subprog = 0;
} else if (strcmp(fw_name, "PSPRCVR_FILE") == 0) {
fw_type = AMD_FW_PSP_RECOVERY;
subprog = 0;
} else if (strcmp(fw_name, "PUBSIGNEDKEY_FILE") == 0) {
fw_type = AMD_FW_PSP_RTM_PUBKEY;
subprog = 0;
} else if (strcmp(fw_name, "PSPNVRAM_FILE") == 0) {
fw_type = AMD_FW_PSP_NVRAM;
subprog = 0;
} else if (strcmp(fw_name, "SMUSCS_FILE") == 0) {
fw_type = AMD_FW_PSP_SMUSCS;
subprog = 0;
} else if (strcmp(fw_name, "PSPTRUSTLETS_FILE") == 0) {
fw_type = AMD_FW_PSP_TRUSTLETS;
subprog = 0;
} else if (strcmp(fw_name, "PSPSECUREDEBUG_FILE") == 0) {
fw_type = AMD_FW_PSP_SECURED_DEBUG;
subprog = 0;
} else if (strcmp(fw_name, "PSP_SMUFW1_SUB0_FILE") == 0) {
fw_type = AMD_FW_PSP_SMU_FIRMWARE;
subprog = 0;
} else if (strcmp(fw_name, "PSP_SMUFW1_SUB1_FILE") == 0) {
fw_type = AMD_FW_PSP_SMU_FIRMWARE;
subprog = 1;
} else if (strcmp(fw_name, "PSP_SMUFW1_SUB2_FILE") == 0) {
fw_type = AMD_FW_PSP_SMU_FIRMWARE;
subprog = 2;
} else if (strcmp(fw_name, "PSP_SMUFW2_SUB0_FILE") == 0) {
fw_type = AMD_FW_PSP_SMU_FIRMWARE2;
subprog = 0;
} else if (strcmp(fw_name, "PSP_SMUFW2_SUB1_FILE") == 0) {
fw_type = AMD_FW_PSP_SMU_FIRMWARE2;
subprog = 1;
} else if (strcmp(fw_name, "PSP_SMUFW2_SUB2_FILE") == 0) {
fw_type = AMD_FW_PSP_SMU_FIRMWARE2;
subprog = 2;
} else if (strcmp(fw_name, "PSP_SEC_DBG_KEY_FILE") == 0) {
if (cb_config->unlock_secure == 1) {
fw_type = AMD_FW_PSP_SECURED_DEBUG;
subprog = 0;
} else {
fw_type = AMD_FW_SKIP;
}
} else if (strcmp(fw_name, "PSP_SEC_DEBUG_FILE") == 0) {
if (cb_config->unlock_secure == 1) {
fw_type = AMD_DEBUG_UNLOCK;
subprog = 0;
} else {
fw_type = AMD_FW_SKIP;
}
} else if (strcmp(fw_name, "PSP_ABL0_FILE") == 0) {
fw_type = AMD_ABL0;
subprog = 0;
} else if (strcmp(fw_name, "PSP_ABL1_FILE") == 0) {
fw_type = AMD_ABL1;
subprog = 0;
} else if (strcmp(fw_name, "PSP_ABL2_FILE") == 0) {
fw_type = AMD_ABL2;
subprog = 0;
} else if (strcmp(fw_name, "PSP_ABL3_FILE") == 0) {
fw_type = AMD_ABL3;
subprog = 0;
} else if (strcmp(fw_name, "PSP_ABL4_FILE") == 0) {
fw_type = AMD_ABL4;
subprog = 0;
} else if (strcmp(fw_name, "PSP_ABL5_FILE") == 0) {
fw_type = AMD_ABL5;
subprog = 0;
} else if (strcmp(fw_name, "PSP_ABL6_FILE") == 0) {
fw_type = AMD_ABL6;
subprog = 0;
} else if (strcmp(fw_name, "PSP_ABL7_FILE") == 0) {
fw_type = AMD_ABL7;
subprog = 0;
} else if (strcmp(fw_name, "PSPSECUREOS_FILE") == 0) {
if (cb_config->use_secureos == 1) {
fw_type = AMD_FW_PSP_SECURED_OS;
subprog = 0;
} else {
fw_type = AMD_FW_SKIP;
}
} else if (strcmp(fw_name, "PSPTRUSTLETS_FILE") == 0) {
if (cb_config->use_secureos) {
fw_type = AMD_FW_PSP_TRUSTLETS;
subprog = 0;
} else {
fw_type = AMD_FW_SKIP;
}
} else if (strcmp(fw_name, "TRUSTLETKEY_FILE") == 0) {
if (cb_config->use_secureos) {
fw_type = AMD_FW_PSP_TRUSTLETKEY;
subprog = 0;
} else {
fw_type = AMD_FW_SKIP;
}
} else if (strcmp(fw_name, "PSP_IKEK_FILE") == 0) {
fw_type = AMD_WRAPPED_IKEK;
subprog = 0;
} else if (strcmp(fw_name, "PSP_SECG1_FILE") == 0) {
fw_type = AMD_SEC_GASKET;
subprog = 1;
} else if (strcmp(fw_name, "PSP_SECG2_FILE") == 0) {
fw_type = AMD_SEC_GASKET;
subprog = 2;
} else if (strcmp(fw_name, "PSP_MP2FW1_FILE") == 0) {
if (cb_config->load_mp2_fw == 1) {
fw_type = AMD_MP2_FW;
subprog = 1;
} else {
fw_type = AMD_FW_SKIP;
}
} else if (strcmp(fw_name, "PSP_MP2FW2_FILE") == 0) {
if (cb_config->load_mp2_fw == 1) {
fw_type = AMD_MP2_FW;
subprog = 2;
} else {
fw_type = AMD_FW_SKIP;
}
} else if (strcmp(fw_name, "PSP_MP2CFG_FILE") == 0) {
if (cb_config->load_mp2_fw == 1) {
fw_type = AMD_BIOS_MP2_CFG;
subprog = 0;
} else {
fw_type = AMD_FW_SKIP;
}
} else if (strcmp(fw_name, "PSP_DRIVERS_FILE") == 0) {
fw_type = AMD_DRIVER_ENTRIES;
subprog = 0;
} else if (strcmp(fw_name, "PSP_S0I3_FILE") == 0) {
if (cb_config->s0i3 == 1) {
fw_type = AMD_S0I3_DRIVER;
subprog = 0;
} else {
fw_type = AMD_FW_SKIP;
}
} else {
fw_type = AMD_FW_INVALID;
/* TODO: Add more */
}
/* Search and fill the filename */
psp_tableptr = &amd_psp_fw_table[0];
if (fw_type != AMD_FW_SKIP && fw_type != AMD_FW_INVALID) {
while (psp_tableptr->type != AMD_FW_INVALID) {
/* instance are not used in PSP table */
if (psp_tableptr->type == fw_type && psp_tableptr->subprog == subprog) {
psp_tableptr->filename = filename;
break;
}
psp_tableptr++;
}
}
if (fw_type == AMD_FW_INVALID)
return 0;
else
return 1;
}
static uint8_t find_register_fw_filename_bios_dir(char *fw_name, char *filename,
amd_cb_config *cb_config)
{
amd_bios_type fw_type = AMD_BIOS_INVALID;
amd_bios_entry *bhd_tableptr;
uint8_t subprog, instance = 0;
(void) (cb_config); /* Remove warning and reserved for future. */
if (strcmp(fw_name, "PSP_PMUI_FILE1") == 0) {
fw_type = AMD_BIOS_PMUI;
subprog = 0;
instance = 1;
} else if (strcmp(fw_name, "PSP_PMUI_FILE2") == 0) {
fw_type = AMD_BIOS_PMUI;
subprog = 0;
instance = 4;
} else if (strcmp(fw_name, "PSP_PMUI_FILE3") == 0) {
fw_type = AMD_BIOS_PMUI;
subprog = 1;
instance = 1;
} else if (strcmp(fw_name, "PSP_PMUI_FILE4") == 0) {
fw_type = AMD_BIOS_PMUI;
subprog = 1;
instance = 4;
} else if (strcmp(fw_name, "PSP_PMUD_FILE1") == 0) {
fw_type = AMD_BIOS_PMUD;
subprog = 0;
instance = 1;
} else if (strcmp(fw_name, "PSP_PMUD_FILE2") == 0) {
fw_type = AMD_BIOS_PMUD;
subprog = 0;
instance = 4;
} else if (strcmp(fw_name, "PSP_PMUD_FILE3") == 0) {
fw_type = AMD_BIOS_PMUD;
subprog = 1;
instance = 1;
} else if (strcmp(fw_name, "PSP_PMUD_FILE4") == 0) {
fw_type = AMD_BIOS_PMUD;
subprog = 1;
instance = 4;
} else {
fw_type = AMD_BIOS_INVALID;
}
bhd_tableptr = amd_bios_table;
if (fw_type != AMD_BIOS_INVALID && fw_type != AMD_BIOS_SKIP) {
while (bhd_tableptr->type != AMD_BIOS_INVALID) {
if (bhd_tableptr->type == fw_type &&
bhd_tableptr->subpr == subprog &&
bhd_tableptr->inst == instance) {
bhd_tableptr->filename = filename;
break;
}
bhd_tableptr++;
}
}
if (fw_type == AMD_BIOS_INVALID)
return 0;
else
return 1;
}
#define MAX_LINE_SIZE 1024
int get_input_file_line(FILE *f, char line[], int line_buf_size)
{
if (fgets(line, line_buf_size, f) == NULL)
return LINE_EOF;
/* If the file contains a line that is too long, then it's best
* to let the user know right away rather than passing back a
* truncated result that will lead to problems later on.
*/
line[strlen(line) - 1] = '\0';
if (strlen(line) == ((size_t) (line_buf_size - 1))) {
fprintf(stderr, "The line size in config file should be lower than %d bytes.\n",
MAX_LINE_SIZE);
exit(1);
}
return OK;
}
static int is_valid_entry(char *oneline, regmatch_t *match)
{
int retval;
if (regexec(&entries_line_expr, oneline, 3, match, 0) == 0) {
oneline[match[1].rm_eo] = '\0';
oneline[match[2].rm_eo] = '\0';
retval = 1;
} else
retval = 0;
return retval;
}
static int skip_comment_blank_line(char *oneline)
{
int retval;
if (regexec(&blank_or_comment_expr, oneline, 0, NULL, 0) == 0) {
/* skip comment and blank */
retval = 1;
} else {
/* no match */
retval = 0;
}
return retval;
}
#define N_MATCHES 4
/*
return value:
0: The config file can not be parsed correctly.
1: The config file can be parsed correctly.
*/
uint8_t process_config(FILE *config, amd_cb_config *cb_config, uint8_t print_deps)
{
char oneline[MAX_LINE_SIZE], *path_filename;
regmatch_t match[N_MATCHES];
char dir[MAX_LINE_SIZE] = {'\0'};
compile_reg_expr(REG_EXTENDED | REG_NEWLINE,
blank_or_comment_regex, &blank_or_comment_expr);
compile_reg_expr(REG_EXTENDED | REG_NEWLINE,
entries_line_regex, &entries_line_expr);
/* Get a line */
/* Get FIRMWARE_LOCATION in the first loop */
while (get_input_file_line(config, oneline, MAX_LINE_SIZE) == OK) {
/* get a line */
if (skip_comment_blank_line(oneline))
continue;
if (is_valid_entry(oneline, match)) {
if (strcmp(&(oneline[match[1].rm_so]), "FIRMWARE_LOCATION") == 0) {
strcpy(dir, &(oneline[match[2].rm_so]));
break;
}
}
}
if (dir[0] == '\0') {
fprintf(stderr, "No line with FIRMWARE_LOCATION\n");
return 0;
}
fseek(config, 0, SEEK_SET);
/* Get a line */
while (get_input_file_line(config, oneline, MAX_LINE_SIZE) == OK) {
/* get a line */
if (skip_comment_blank_line(oneline))
continue;
if (is_valid_entry(oneline, match)) {
if (strcmp(&(oneline[match[1].rm_so]), "FIRMWARE_LOCATION") == 0) {
continue;
} else {
path_filename = malloc(MAX_LINE_SIZE);
strcpy(path_filename, dir);
strcat(path_filename, "/");
strcat(path_filename, &(oneline[match[2].rm_so]));
if (find_register_fw_filename_psp_dir(
&(oneline[match[1].rm_so]),
path_filename, cb_config) == 0) {
if (find_register_fw_filename_bios_dir(
&(oneline[match[1].rm_so]),
path_filename, cb_config) == 0) {
fprintf(stderr, "Module's name \"%s\" is not valid\n", oneline);
return 0; /* Stop parsing. */
} else {
if (print_deps)
printf(" %s ", path_filename);
}
} else {
if (print_deps)
printf(" %s ", path_filename);
}
}
} else {
fprintf(stderr, "AMDFWTOOL config file line can't be parsed \"%s\"\n", oneline);
return 0;
}
}
return 1;
}