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/* BEGIN_HEADER */
#include "mbedtls/bignum.h"
#include "mbedtls/pkcs7.h"
#include "mbedtls/x509.h"
#include "mbedtls/x509_crt.h"
#include "mbedtls/x509_crl.h"
#include "x509_internal.h"
#include "mbedtls/oid.h"
#include "sys/types.h"
#include "sys/stat.h"
#include "mbedtls/rsa.h"
#include "mbedtls/error.h"
/* END_HEADER */
/* BEGIN_DEPENDENCIES
* depends_on:MBEDTLS_PKCS7_C
* END_DEPENDENCIES
*/
/* BEGIN_SUITE_HELPERS */
int pkcs7_parse_buffer(unsigned char *pkcs7_buf, int buflen)
{
int res;
mbedtls_pkcs7 pkcs7;
mbedtls_pkcs7_init(&pkcs7);
res = mbedtls_pkcs7_parse_der(&pkcs7, pkcs7_buf, buflen);
mbedtls_pkcs7_free(&pkcs7);
return res;
}
/* END_SUITE_HELPERS */
/* BEGIN_CASE */
void pkcs7_asn1_fail(data_t *pkcs7_buf)
{
int res;
res = pkcs7_parse_buffer(pkcs7_buf->x, pkcs7_buf->len);
TEST_ASSERT(res != MBEDTLS_PKCS7_SIGNED_DATA);
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_FS_IO */
void pkcs7_parse(char *pkcs7_file, int res_expect)
{
unsigned char *pkcs7_buf = NULL;
size_t buflen;
int res;
res = mbedtls_pk_load_file(pkcs7_file, &pkcs7_buf, &buflen);
TEST_EQUAL(res, 0);
res = pkcs7_parse_buffer(pkcs7_buf, buflen);
TEST_EQUAL(res, res_expect);
exit:
mbedtls_free(pkcs7_buf);
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_FS_IO:MBEDTLS_X509_CRT_PARSE_C:MBEDTLS_PKCS1_V15:MBEDTLS_RSA_C */
void pkcs7_verify(char *pkcs7_file,
char *crt_files,
char *filetobesigned,
int do_hash_alg,
int res_expect)
{
unsigned char *pkcs7_buf = NULL;
size_t buflen, i, k, cnt = 0, n_crts = 1;
unsigned char *data = NULL;
char **crt_files_arr = NULL;
unsigned char *hash = NULL;
struct stat st;
size_t datalen;
int res;
FILE *file;
const mbedtls_md_info_t *md_info;
mbedtls_pkcs7 pkcs7;
mbedtls_x509_crt **crts = NULL;
MD_OR_USE_PSA_INIT();
mbedtls_pkcs7_init(&pkcs7);
/* crt_files are space seprated list */
for (i = 0; i < strlen(crt_files); i++) {
if (crt_files[i] == ' ') {
n_crts++;
}
}
TEST_CALLOC(crts, n_crts);
TEST_CALLOC(crt_files_arr, n_crts);
for (i = 0; i < strlen(crt_files); i++) {
for (k = i; k < strlen(crt_files); k++) {
if (crt_files[k] == ' ') {
break;
}
}
TEST_CALLOC(crt_files_arr[cnt], (k-i)+1);
crt_files_arr[cnt][k-i] = '\0';
memcpy(crt_files_arr[cnt++], crt_files + i, k-i);
i = k;
}
for (i = 0; i < n_crts; i++) {
TEST_CALLOC(crts[i], 1);
mbedtls_x509_crt_init(crts[i]);
}
res = mbedtls_pk_load_file(pkcs7_file, &pkcs7_buf, &buflen);
TEST_EQUAL(res, 0);
res = mbedtls_pkcs7_parse_der(&pkcs7, pkcs7_buf, buflen);
TEST_EQUAL(res, MBEDTLS_PKCS7_SIGNED_DATA);
TEST_EQUAL(pkcs7.signed_data.no_of_signers, n_crts);
for (i = 0; i < n_crts; i++) {
res = mbedtls_x509_crt_parse_file(crts[i], crt_files_arr[i]);
TEST_EQUAL(res, 0);
}
res = stat(filetobesigned, &st);
TEST_EQUAL(res, 0);
file = fopen(filetobesigned, "rb");
TEST_ASSERT(file != NULL);
datalen = st.st_size;
/* Special-case for zero-length input so that data will be non-NULL */
TEST_CALLOC(data, datalen == 0 ? 1 : datalen);
buflen = fread((void *) data, sizeof(unsigned char), datalen, file);
TEST_EQUAL(buflen, datalen);
fclose(file);
if (do_hash_alg) {
md_info = mbedtls_md_info_from_type((mbedtls_md_type_t) do_hash_alg);
TEST_CALLOC(hash, mbedtls_md_get_size(md_info));
res = mbedtls_md(md_info, data, datalen, hash);
TEST_EQUAL(res, 0);
for (i = 0; i < n_crts; i++) {
res =
mbedtls_pkcs7_signed_hash_verify(&pkcs7, crts[i], hash,
mbedtls_md_get_size(md_info));
TEST_EQUAL(res, res_expect);
}
} else {
for (i = 0; i < n_crts; i++) {
res = mbedtls_pkcs7_signed_data_verify(&pkcs7, crts[i], data, datalen);
TEST_EQUAL(res, res_expect);
}
}
exit:
for (i = 0; i < n_crts; i++) {
mbedtls_x509_crt_free(crts[i]);
mbedtls_free(crts[i]);
mbedtls_free(crt_files_arr[i]);
}
mbedtls_free(hash);
mbedtls_pkcs7_free(&pkcs7);
mbedtls_free(crt_files_arr);
mbedtls_free(crts);
mbedtls_free(data);
mbedtls_free(pkcs7_buf);
MD_OR_USE_PSA_DONE();
}
/* END_CASE */
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