BearSSL/tools/ta.c

255 lines
6.8 KiB
C

/*
* Copyright (c) 2016 Thomas Pornin <pornin@bolet.org>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <errno.h>
#include "brssl.h"
#include "bearssl.h"
static const char *
curve_to_sym(int curve)
{
switch (curve) {
case BR_EC_sect163k1: return "BR_EC_sect163k1";
case BR_EC_sect163r1: return "BR_EC_sect163r1";
case BR_EC_sect163r2: return "BR_EC_sect163r2";
case BR_EC_sect193r1: return "BR_EC_sect193r1";
case BR_EC_sect193r2: return "BR_EC_sect193r2";
case BR_EC_sect233k1: return "BR_EC_sect233k1";
case BR_EC_sect233r1: return "BR_EC_sect233r1";
case BR_EC_sect239k1: return "BR_EC_sect239k1";
case BR_EC_sect283k1: return "BR_EC_sect283k1";
case BR_EC_sect283r1: return "BR_EC_sect283r1";
case BR_EC_sect409k1: return "BR_EC_sect409k1";
case BR_EC_sect409r1: return "BR_EC_sect409r1";
case BR_EC_sect571k1: return "BR_EC_sect571k1";
case BR_EC_sect571r1: return "BR_EC_sect571r1";
case BR_EC_secp160k1: return "BR_EC_secp160k1";
case BR_EC_secp160r1: return "BR_EC_secp160r1";
case BR_EC_secp160r2: return "BR_EC_secp160r2";
case BR_EC_secp192k1: return "BR_EC_secp192k1";
case BR_EC_secp192r1: return "BR_EC_secp192r1";
case BR_EC_secp224k1: return "BR_EC_secp224k1";
case BR_EC_secp224r1: return "BR_EC_secp224r1";
case BR_EC_secp256k1: return "BR_EC_secp256k1";
case BR_EC_secp256r1: return "BR_EC_secp256r1";
case BR_EC_secp384r1: return "BR_EC_secp384r1";
case BR_EC_secp521r1: return "BR_EC_secp521r1";
case BR_EC_brainpoolP256r1: return "BR_EC_brainpoolP256r1";
case BR_EC_brainpoolP384r1: return "BR_EC_brainpoolP384r1";
case BR_EC_brainpoolP512r1: return "BR_EC_brainpoolP512r1";
}
return NULL;
}
static void
print_blob(const char *name, const unsigned char *buf, size_t len)
{
size_t u;
printf("\nstatic const unsigned char %s[] = {", name);
for (u = 0; u < len; u ++) {
if (u != 0) {
printf(",");
}
if (u % 12 == 0) {
printf("\n\t");
} else {
printf(" ");
}
printf("0x%02X", buf[u]);
}
printf("\n};\n");
}
static int
print_ta_internals(br_x509_trust_anchor *ta, long ctr)
{
char tmp[25];
sprintf(tmp, "TA%ld_DN", ctr);
print_blob(tmp, ta->dn.data, ta->dn.len);
switch (ta->pkey.key_type) {
case BR_KEYTYPE_RSA:
sprintf(tmp, "TA%ld_RSA_N", ctr);
print_blob(tmp, ta->pkey.key.rsa.n, ta->pkey.key.rsa.nlen);
sprintf(tmp, "TA%ld_RSA_E", ctr);
print_blob(tmp, ta->pkey.key.rsa.e, ta->pkey.key.rsa.elen);
break;
case BR_KEYTYPE_EC:
sprintf(tmp, "TA%ld_EC_Q", ctr);
print_blob(tmp, ta->pkey.key.ec.q, ta->pkey.key.ec.qlen);
break;
default:
fprintf(stderr, "ERROR: unknown anchor key type '%d'\n",
ta->pkey.key_type);
return -1;
}
return 0;
}
static void
print_ta(br_x509_trust_anchor *ta, long ctr)
{
char tmp[25];
printf("\t{\n");
printf("\t\t{ (unsigned char *)TA%ld_DN, sizeof TA%ld_DN },\n",
ctr, ctr);
printf("\t\t%s,\n", (ta->flags & BR_X509_TA_CA)
? "BR_X509_TA_CA" : "0");
printf("\t\t{\n");
switch (ta->pkey.key_type) {
const char *cname;
case BR_KEYTYPE_RSA:
printf("\t\t\tBR_KEYTYPE_RSA,\n");
printf("\t\t\t{ .rsa = {\n");
printf("\t\t\t\t(unsigned char *)TA%ld_RSA_N,"
" sizeof TA%ld_RSA_N,\n", ctr, ctr);
printf("\t\t\t\t(unsigned char *)TA%ld_RSA_E,"
" sizeof TA%ld_RSA_E,\n", ctr, ctr);
printf("\t\t\t} }\n");
break;
case BR_KEYTYPE_EC:
printf("\t\t\tBR_KEYTYPE_EC,\n");
printf("\t\t\t{ .ec = {\n");
cname = curve_to_sym(ta->pkey.key.ec.curve);
if (cname == NULL) {
sprintf(tmp, "%d", ta->pkey.key.ec.curve);
cname = tmp;
}
printf("\t\t\t\t%s,\n", cname);
printf("\t\t\t\t(unsigned char *)TA%ld_EC_Q,"
" sizeof TA%ld_EC_Q,\n", ctr, ctr);
printf("\t\t\t} }\n");
}
printf("\t\t}\n");
printf("\t}");
}
static void
usage_ta(void)
{
fprintf(stderr,
"usage: brssl ta [ options ] file...\n");
fprintf(stderr,
"options:\n");
fprintf(stderr,
" -q suppress verbose messages\n");
}
/* see brssl.h */
int
do_ta(int argc, char *argv[])
{
int retcode;
int verbose;
int i, num_files;
anchor_list tas = VEC_INIT;
size_t u, num;
retcode = 0;
verbose = 1;
num_files = 0;
for (i = 0; i < argc; i ++) {
const char *arg;
arg = argv[i];
if (arg[0] != '-') {
num_files ++;
continue;
}
argv[i] = NULL;
if (eqstr(arg, "-v") || eqstr(arg, "-verbose")) {
verbose = 1;
} else if (eqstr(arg, "-q") || eqstr(arg, "-quiet")) {
verbose = 0;
} else {
fprintf(stderr, "ERROR: unknown option: '%s'\n", arg);
usage_ta();
goto ta_exit_error;
}
}
if (num_files == 0) {
fprintf(stderr, "ERROR: no certificate file provided\n");
usage_ta();
goto ta_exit_error;
}
for (i = 0; i < argc; i ++) {
const char *fname;
size_t len1, len2;
fname = argv[i];
if (fname == NULL) {
continue;
}
if (verbose) {
fprintf(stderr, "Reading file '%s': ", fname);
fflush(stderr);
}
len1 = VEC_LEN(tas);
if (read_trust_anchors(&tas, fname) == 0) {
goto ta_exit_error;
}
len2 = VEC_LEN(tas) - len1;
if (verbose) {
fprintf(stderr, "%lu trust anchor%s\n",
(unsigned long)len2, len2 > 1 ? "s" : "");
}
}
num = VEC_LEN(tas);
for (u = 0; u < num; u ++) {
if (print_ta_internals(&VEC_ELT(tas, u), u) < 0) {
goto ta_exit_error;
}
}
printf("\nstatic const br_x509_trust_anchor TAs[%ld] = {", (long)num);
for (u = 0; u < num; u ++) {
if (u != 0) {
printf(",");
}
printf("\n");
print_ta(&VEC_ELT(tas, u), u);
}
printf("\n};\n");
printf("\n#define TAs_NUM %ld\n", (long)num);
/*
* Release allocated structures.
*/
ta_exit:
VEC_CLEAREXT(tas, free_ta_contents);
return retcode;
ta_exit_error:
retcode = -1;
goto ta_exit;
}