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openssl/test/pkcs12_helper.c
Jon Spillett c5ec6dcf0b Add new APIs to get PKCS12 secretBag OID and value 
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10063)
2020-08-07 07:59:48 +10:00

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/*
* Copyright 2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "internal/nelem.h"
#include <openssl/pkcs12.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include <openssl/pem.h>
#include "testutil.h"
#include "pkcs12_helper.h"
DEFINE_STACK_OF(PKCS7)
DEFINE_STACK_OF(PKCS12_SAFEBAG)
DEFINE_STACK_OF(X509_ATTRIBUTE)
/* Set this to > 0 write test data to file */
int write_files = 0;
/* -------------------------------------------------------------------------
* Local function declarations
*/
static X509 *load_cert(const unsigned char *bytes, int len);
static EVP_PKEY *load_pkey(const unsigned char *bytes, int len);
static int add_attributes(PKCS12_SAFEBAG *bag, const PKCS12_ATTR *attrs);
static void generate_p12(PKCS12_BUILDER *pb, const PKCS12_ENC *mac);
static int write_p12(PKCS12 *p12, const char *outfile);
static PKCS12 *from_bio_p12(BIO *bio, const PKCS12_ENC *mac);
static PKCS12 *read_p12(const char *infile, const PKCS12_ENC *mac);
static int check_p12_mac(PKCS12 *p12, const PKCS12_ENC *mac);
static int check_asn1_string(const ASN1_TYPE *av, const char *txt);
static int check_attrs(const STACK_OF(X509_ATTRIBUTE) *bag_attrs, const PKCS12_ATTR *attrs);
/* --------------------------------------------------------------------------
* Test data load functions
*/
static X509 *load_cert(const unsigned char *bytes, int len)
{
X509 *cert = NULL;
cert = d2i_X509(NULL, &bytes, len);
if (!TEST_ptr(cert))
goto err;
err:
return cert;
}
static EVP_PKEY *load_pkey(const unsigned char *bytes, int len)
{
EVP_PKEY *pkey = NULL;
pkey = d2i_AutoPrivateKey(NULL, &bytes, len);
if (!TEST_ptr(pkey))
goto err;
err:
return pkey;
}
/* -------------------------------------------------------------------------
* PKCS12 builder
*/
PKCS12_BUILDER *new_pkcs12_builder(const char *filename)
{
PKCS12_BUILDER *pb = OPENSSL_malloc(sizeof(PKCS12_BUILDER));
if (!TEST_ptr(pb))
return NULL;
pb->filename = filename;
pb->success = 1;
return pb;
}
int end_pkcs12_builder(PKCS12_BUILDER *pb)
{
int result = pb->success;
OPENSSL_free(pb);
return result;
}
void start_pkcs12(PKCS12_BUILDER *pb)
{
pb->safes = NULL;
}
void end_pkcs12(PKCS12_BUILDER *pb)
{
if (!pb->success)
return;
generate_p12(pb, NULL);
}
void end_pkcs12_with_mac(PKCS12_BUILDER *pb, const PKCS12_ENC *mac)
{
if (!pb->success)
return;
generate_p12(pb, mac);
}
/* Generate the PKCS12 encoding and write to memory bio */
static void generate_p12(PKCS12_BUILDER *pb, const PKCS12_ENC *mac)
{
PKCS12 *p12;
if (!pb->success)
return;
pb->p12bio = BIO_new(BIO_s_mem());
if (!TEST_ptr(pb->p12bio)) {
pb->success = 0;
return;
}
p12 = PKCS12_add_safes(pb->safes, 0);
if (!TEST_ptr(p12)) {
pb->success = 0;
goto err;
}
sk_PKCS7_pop_free(pb->safes, PKCS7_free);
if (mac != NULL) {
if (!TEST_true(PKCS12_set_mac(p12, mac->pass, strlen(mac->pass),
NULL, 0, mac->iter, EVP_get_digestbynid(mac->nid)))) {
pb->success = 0;
goto err;
}
}
i2d_PKCS12_bio(pb->p12bio, p12);
/* Can write to file here for debug */
if (write_files)
write_p12(p12, pb->filename);
err:
PKCS12_free(p12);
}
static int write_p12(PKCS12 *p12, const char *outfile)
{
int ret = 0;
BIO *out = BIO_new_file(outfile, "w");
if (out == NULL)
goto err;
if (!TEST_int_eq(i2d_PKCS12_bio(out, p12), 1))
goto err;
ret = 1;
err:
BIO_free(out);
return ret;
}
static PKCS12 *from_bio_p12(BIO *bio, const PKCS12_ENC *mac)
{
PKCS12 *p12 = NULL;
p12 = d2i_PKCS12_bio(bio, NULL);
BIO_free(bio);
if (!TEST_ptr(p12))
goto err;
if (mac == NULL) {
if (!TEST_false(PKCS12_mac_present(p12)))
goto err;
} else {
if (!check_p12_mac(p12, mac))
goto err;
}
return p12;
err:
PKCS12_free(p12);
return NULL;
}
/* For use with existing files */
static PKCS12 *read_p12(const char *infile, const PKCS12_ENC *mac)
{
PKCS12 *p12 = NULL;
BIO *in = BIO_new_file(infile, "r");
if (in == NULL)
goto err;
p12 = d2i_PKCS12_bio(in, NULL);
BIO_free(in);
if (!TEST_ptr(p12))
goto err;
if (mac == NULL) {
if (!TEST_false(PKCS12_mac_present(p12)))
goto err;
} else {
if (!check_p12_mac(p12, mac))
goto err;
}
return p12;
err:
PKCS12_free(p12);
return NULL;
}
static int check_p12_mac(PKCS12 *p12, const PKCS12_ENC *mac)
{
return TEST_true(PKCS12_mac_present(p12))
&& TEST_true(PKCS12_verify_mac(p12, mac->pass, strlen(mac->pass)));
}
/* -------------------------------------------------------------------------
* PKCS7 content info builder
*/
void start_contentinfo(PKCS12_BUILDER *pb)
{
pb->bags = NULL;
}
void end_contentinfo(PKCS12_BUILDER *pb)
{
if (pb->success) {
if (pb->bags && !TEST_true(PKCS12_add_safe(&pb->safes, pb->bags, -1, 0, NULL))) {
pb->success = 0;
return;
}
}
sk_PKCS12_SAFEBAG_pop_free(pb->bags, PKCS12_SAFEBAG_free);
pb->bags = NULL;
}
void end_contentinfo_encrypted(PKCS12_BUILDER *pb, const PKCS12_ENC *enc)
{
if (pb->success) {
if (pb->bags
&& !TEST_true(PKCS12_add_safe(&pb->safes, pb->bags, enc->nid, enc->iter, enc->pass))) {
pb->success = 0;
return;
}
}
sk_PKCS12_SAFEBAG_pop_free(pb->bags, PKCS12_SAFEBAG_free);
pb->bags = NULL;
}
static STACK_OF(PKCS12_SAFEBAG) *decode_contentinfo(STACK_OF(PKCS7) *safes, int idx, const PKCS12_ENC *enc)
{
STACK_OF(PKCS12_SAFEBAG) *bags = NULL;
PKCS7 *p7 = sk_PKCS7_value(safes, idx);
int bagnid = OBJ_obj2nid(p7->type);
if (enc) {
if (!TEST_int_eq(bagnid, NID_pkcs7_encrypted))
goto err;
/* TODO: Check algorithm (iterations?) against what we originally set */
bags = PKCS12_unpack_p7encdata(p7, enc->pass, strlen(enc->pass));
} else {
if (!TEST_int_eq(bagnid, NID_pkcs7_data))
goto err;
bags = PKCS12_unpack_p7data(p7);
}
if (!TEST_ptr(bags))
goto err;
return bags;
err:
return NULL;
}
/* -------------------------------------------------------------------------
* PKCS12 safeBag/attribute builder
*/
static int add_attributes(PKCS12_SAFEBAG *bag, const PKCS12_ATTR *attrs)
{
int ret = 0;
int attr_nid;
const PKCS12_ATTR *p_attr = attrs;
if (attrs == NULL)
return 1;
while (p_attr->oid != NULL) {
TEST_info("Adding attribute %s = %s", p_attr->oid, p_attr->value);
attr_nid = OBJ_txt2nid(p_attr->oid);
if (attr_nid == NID_friendlyName) {
if (!TEST_true(PKCS12_add_friendlyname(bag, p_attr->value, -1)))
goto err;
} else if (attr_nid == NID_localKeyID) {
if (!TEST_true(PKCS12_add_localkeyid(bag, (unsigned char *)p_attr->value,
strlen(p_attr->value))))
goto err;
} else {
/* Custom attribute values limited to ASCII in these tests */
if (!TEST_true(PKCS12_add1_attr_by_txt(bag, p_attr->oid, MBSTRING_ASC,
(unsigned char *)p_attr->value,
strlen(p_attr->value))))
goto err;
}
p_attr++;
}
ret = 1;
err:
return ret;
}
void add_certbag(PKCS12_BUILDER *pb, const unsigned char *bytes, int len,
const PKCS12_ATTR *attrs)
{
PKCS12_SAFEBAG *bag = NULL;
X509 *cert = NULL;
char *name;
if (!pb->success)
return;
cert = load_cert(bytes, len);
if (!TEST_ptr(cert)) {
pb->success = 0;
return;
}
name = X509_NAME_oneline(X509_get_subject_name(cert), NULL, 0);
TEST_info("Adding certificate <%s>", name);
OPENSSL_free(name);
bag = PKCS12_add_cert(&pb->bags, cert);
if (!TEST_ptr(bag)) {
pb->success = 0;
goto err;
}
if (!TEST_true(add_attributes(bag, attrs))) {
pb->success = 0;
goto err;
}
err:
X509_free(cert);
}
void add_keybag(PKCS12_BUILDER *pb, const unsigned char *bytes, int len,
const PKCS12_ATTR *attrs, const PKCS12_ENC *enc)
{
PKCS12_SAFEBAG *bag = NULL;
EVP_PKEY *pkey = NULL;
if (!pb->success)
return;
TEST_info("Adding key");
pkey = load_pkey(bytes, len);
if (!TEST_ptr(pkey)) {
pb->success = 0;
return;
}
bag = PKCS12_add_key(&pb->bags, pkey, 0 /*keytype*/, enc->iter, enc->nid, enc->pass);
if (!TEST_ptr(bag)) {
pb->success = 0;
goto err;
}
if (!add_attributes(bag, attrs))
pb->success = 0;
err:
EVP_PKEY_free(pkey);
}
void add_secretbag(PKCS12_BUILDER *pb, int secret_nid, const char *secret,
const PKCS12_ATTR *attrs)
{
PKCS12_SAFEBAG *bag = NULL;
if (!pb->success)
return;
TEST_info("Adding secret <%s>", secret);
bag = PKCS12_add_secret(&pb->bags, secret_nid, (const unsigned char *)secret, strlen(secret));
if (!TEST_ptr(bag)) {
pb->success = 0;
return;
}
if (!add_attributes(bag, attrs))
pb->success = 0;
}
/* -------------------------------------------------------------------------
* PKCS12 structure checking
*/
static int check_asn1_string(const ASN1_TYPE *av, const char *txt)
{
int ret = 0;
char *value = NULL;
if (!TEST_ptr(av))
goto err;
switch (av->type) {
case V_ASN1_BMPSTRING:
value = OPENSSL_uni2asc(av->value.bmpstring->data,
av->value.bmpstring->length);
if (!TEST_str_eq(txt, (char *)value))
goto err;
break;
case V_ASN1_UTF8STRING:
if (!TEST_str_eq(txt, (char *)av->value.utf8string->data))
goto err;
break;
case V_ASN1_OCTET_STRING:
if (!TEST_str_eq(txt, (char *)av->value.octet_string->data))
goto err;
break;
default:
/* Tests do not support other attribute types currently */
goto err;
}
ret = 1;
err:
OPENSSL_free(value);
return ret;
}
static int check_attrs(const STACK_OF(X509_ATTRIBUTE) *bag_attrs, const PKCS12_ATTR *attrs)
{
int ret = 0;
X509_ATTRIBUTE *attr;
ASN1_TYPE *av;
int i, j;
char attr_txt[100];
for (i = 0; i < sk_X509_ATTRIBUTE_num(bag_attrs); i++) {
const PKCS12_ATTR *p_attr = attrs;
ASN1_OBJECT *attr_obj;
attr = sk_X509_ATTRIBUTE_value(bag_attrs, i);
attr_obj = X509_ATTRIBUTE_get0_object(attr);
OBJ_obj2txt(attr_txt, 100, attr_obj, 0);
while(p_attr->oid != NULL) {
/* Find a matching attribute type */
if (strcmp(p_attr->oid, attr_txt) == 0) {
/* TODO: Handle multi-value attributes */
if (!TEST_int_eq(X509_ATTRIBUTE_count(attr), 1))
goto err;
for (j = 0; j < X509_ATTRIBUTE_count(attr); j++)
{
av = X509_ATTRIBUTE_get0_type(attr, j);
if (!TEST_true(check_asn1_string(av, p_attr->value)))
goto err;
}
break;
}
p_attr++;
}
}
ret = 1;
err:
return ret;
}
void check_certbag(PKCS12_BUILDER *pb, const unsigned char *bytes, int len,
const PKCS12_ATTR *attrs)
{
X509 *x509 = NULL;
X509 *ref_x509 = NULL;
const PKCS12_SAFEBAG *bag;
if (!pb->success)
return;
bag = sk_PKCS12_SAFEBAG_value(pb->bags, pb->bag_idx++);
if (!TEST_ptr(bag)) {
pb->success = 0;
return;
}
if (!check_attrs(PKCS12_SAFEBAG_get0_attrs(bag), attrs)
|| !TEST_int_eq(PKCS12_SAFEBAG_get_nid(bag), NID_certBag)
|| !TEST_int_eq(PKCS12_SAFEBAG_get_bag_nid(bag), NID_x509Certificate)) {
pb->success = 0;
return;
}
x509 = PKCS12_SAFEBAG_get1_cert(bag);
if (!TEST_ptr(x509)) {
pb->success = 0;
goto err;
}
ref_x509 = load_cert(bytes, len);
if (!TEST_false(X509_cmp(x509, ref_x509)))
pb->success = 0;
err:
X509_free(x509);
X509_free(ref_x509);
}
void check_keybag(PKCS12_BUILDER *pb, const unsigned char *bytes, int len,
const PKCS12_ATTR *attrs, const PKCS12_ENC *enc)
{
EVP_PKEY *pkey = NULL;
EVP_PKEY *ref_pkey = NULL;
PKCS8_PRIV_KEY_INFO *p8;
const PKCS8_PRIV_KEY_INFO *p8c;
const PKCS12_SAFEBAG *bag;
if (!pb->success)
return;
bag = sk_PKCS12_SAFEBAG_value(pb->bags, pb->bag_idx++);
if (!TEST_ptr(bag)) {
pb->success = 0;
return;
}
if (!check_attrs(PKCS12_SAFEBAG_get0_attrs(bag), attrs)) {
pb->success = 0;
return;
}
switch (PKCS12_SAFEBAG_get_nid(bag)) {
case NID_keyBag:
p8c = PKCS12_SAFEBAG_get0_p8inf(bag);
if (!TEST_ptr(pkey = EVP_PKCS82PKEY(p8c))) {
pb->success = 0;
goto err;
}
/* TODO: handle key attributes */
/* PKCS8_pkey_get0_attrs(p8c); */
break;
case NID_pkcs8ShroudedKeyBag:
if (!TEST_ptr(p8 = PKCS12_decrypt_skey(bag, enc->pass, strlen(enc->pass)))) {
pb->success = 0;
goto err;
}
if (!TEST_ptr(pkey = EVP_PKCS82PKEY(p8))) {
PKCS8_PRIV_KEY_INFO_free(p8);
pb->success = 0;
goto err;
}
/* TODO: handle key attributes */
/* PKCS8_pkey_get0_attrs(p8); */
PKCS8_PRIV_KEY_INFO_free(p8);
break;
default:
pb->success = 0;
goto err;
}
/* PKEY compare returns 1 for match */
ref_pkey = load_pkey(bytes, len);
if (!TEST_true(EVP_PKEY_eq(pkey, ref_pkey)))
pb->success = 0;
err:
EVP_PKEY_free(pkey);
EVP_PKEY_free(ref_pkey);
}
void check_secretbag(PKCS12_BUILDER *pb, int secret_nid, const char *secret, const PKCS12_ATTR *attrs)
{
const PKCS12_SAFEBAG *bag;
if (!pb->success)
return;
bag = sk_PKCS12_SAFEBAG_value(pb->bags, pb->bag_idx++);
if (!TEST_ptr(bag)) {
pb->success = 0;
return;
}
if (!check_attrs(PKCS12_SAFEBAG_get0_attrs(bag), attrs)
|| !TEST_int_eq(PKCS12_SAFEBAG_get_nid(bag), NID_secretBag)
|| !TEST_int_eq(PKCS12_SAFEBAG_get_bag_nid(bag), secret_nid)
|| !TEST_true(check_asn1_string(PKCS12_SAFEBAG_get0_bag_obj(bag), secret)))
pb->success = 0;
}
void start_check_pkcs12(PKCS12_BUILDER *pb)
{
PKCS12 *p12 = from_bio_p12(pb->p12bio, NULL);
if (!TEST_ptr(p12)) {
pb->success = 0;
return;
}
pb->safes = PKCS12_unpack_authsafes(p12);
if (!TEST_ptr(pb->safes))
pb->success = 0;
pb->safe_idx = 0;
PKCS12_free(p12);
}
void start_check_pkcs12_with_mac(PKCS12_BUILDER *pb, const PKCS12_ENC *mac)
{
PKCS12 *p12 = from_bio_p12(pb->p12bio, mac);
if (!TEST_ptr(p12)) {
pb->success = 0;
return;
}
pb->safes = PKCS12_unpack_authsafes(p12);
if (!TEST_ptr(pb->safes))
pb->success = 0;
pb->safe_idx = 0;
PKCS12_free(p12);
}
void start_check_pkcs12_file(PKCS12_BUILDER *pb)
{
PKCS12 *p12 = read_p12(pb->filename, NULL);
if (!TEST_ptr(p12)) {
pb->success = 0;
return;
}
pb->safes = PKCS12_unpack_authsafes(p12);
if (!TEST_ptr(pb->safes))
pb->success = 0;
pb->safe_idx = 0;
PKCS12_free(p12);
}
void start_check_pkcs12_file_with_mac(PKCS12_BUILDER *pb, const PKCS12_ENC *mac)
{
PKCS12 *p12 = read_p12(pb->filename, mac);
if (!TEST_ptr(p12)) {
pb->success = 0;
return;
}
pb->safes = PKCS12_unpack_authsafes(p12);
if (!TEST_ptr(pb->safes))
pb->success = 0;
pb->safe_idx = 0;
PKCS12_free(p12);
}
void end_check_pkcs12(PKCS12_BUILDER *pb)
{
sk_PKCS7_pop_free(pb->safes, PKCS7_free);
}
void start_check_contentinfo(PKCS12_BUILDER *pb)
{
pb->bag_idx = 0;
pb->bags = decode_contentinfo(pb->safes, pb->safe_idx++, NULL);
if (!TEST_ptr(pb->bags)) {
pb->success = 0;
return;
}
TEST_info("Decoding %d bags", sk_PKCS12_SAFEBAG_num(pb->bags));
}
void start_check_contentinfo_encrypted(PKCS12_BUILDER *pb, const PKCS12_ENC *enc)
{
pb->bag_idx = 0;
pb->bags = decode_contentinfo(pb->safes, pb->safe_idx++, enc);
if (!TEST_ptr(pb->bags)) {
pb->success = 0;
return;
}
TEST_info("Decoding %d bags", sk_PKCS12_SAFEBAG_num(pb->bags));
}
void end_check_contentinfo(PKCS12_BUILDER *pb)
{
if (!TEST_int_eq(sk_PKCS12_SAFEBAG_num(pb->bags), pb->bag_idx))
pb->success = 0;
sk_PKCS12_SAFEBAG_pop_free(pb->bags, PKCS12_SAFEBAG_free);
pb->bags = NULL;
}
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