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boringssl/ssl/test/bssl_shim.cc
David Benjamin 1f5f62b204 Add a server NPN test. 
Change-Id: Ib34a24e86bb5de117ecf5609918e130c1ff9532e
Reviewed-on: https://boringssl-review.googlesource.com/1161
Reviewed-by: Adam Langley <agl@google.com>
2014-07-14 23:08:01 +00:00

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8.1 KiB
C++
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/* Copyright (c) 2014, Google Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <openssl/ssl.h>
#include <openssl/bio.h>
#include <openssl/bytestring.h>
static const char *expected_server_name = NULL;
static int early_callback_called = 0;
static int select_certificate_callback(const struct ssl_early_callback_ctx *ctx) {
early_callback_called = 1;
if (!expected_server_name) {
return 1;
}
const uint8_t *extension_data;
size_t extension_len;
CBS extension, server_name_list, host_name;
uint8_t name_type;
if (!SSL_early_callback_ctx_extension_get(ctx, TLSEXT_TYPE_server_name,
&extension_data,
&extension_len)) {
fprintf(stderr, "Could not find server_name extension.\n");
return -1;
}
CBS_init(&extension, extension_data, extension_len);
if (!CBS_get_u16_length_prefixed(&extension, &server_name_list) ||
CBS_len(&extension) != 0 ||
!CBS_get_u8(&server_name_list, &name_type) ||
name_type != TLSEXT_NAMETYPE_host_name ||
!CBS_get_u16_length_prefixed(&server_name_list, &host_name) ||
CBS_len(&server_name_list) != 0) {
fprintf(stderr, "Could not decode server_name extension.\n");
return -1;
}
if (CBS_len(&host_name) != strlen(expected_server_name) ||
memcmp(expected_server_name,
CBS_data(&host_name), CBS_len(&host_name)) != 0) {
fprintf(stderr, "Server name mismatch.\n");
}
return 1;
}
static int skip_verify(int preverify_ok, X509_STORE_CTX *store_ctx) {
return 1;
}
static const char *advertise_npn = NULL;
static int next_protos_advertised_callback(SSL *ssl,
const uint8_t **out,
unsigned int *out_len,
void *arg) {
if (!advertise_npn)
return SSL_TLSEXT_ERR_NOACK;
// TODO(davidben): Support passing byte strings with NULs to the
// test shim.
*out = (const uint8_t*)advertise_npn;
*out_len = strlen(advertise_npn);
return SSL_TLSEXT_ERR_OK;
}
static SSL *setup_test(int is_server) {
if (!SSL_library_init()) {
return NULL;
}
SSL_CTX *ssl_ctx = NULL;
SSL *ssl = NULL;
BIO *bio = NULL;
ssl_ctx = SSL_CTX_new(
is_server ? SSLv23_server_method() : SSLv23_client_method());
if (ssl_ctx == NULL) {
goto err;
}
if (!SSL_CTX_set_ecdh_auto(ssl_ctx, 1)) {
goto err;
}
if (!SSL_CTX_set_cipher_list(ssl_ctx, "ALL")) {
goto err;
}
ssl_ctx->select_certificate_cb = select_certificate_callback;
SSL_CTX_set_next_protos_advertised_cb(
ssl_ctx, next_protos_advertised_callback, NULL);
ssl = SSL_new(ssl_ctx);
if (ssl == NULL) {
goto err;
}
bio = BIO_new_fd(3, 1 /* take ownership */);
if (bio == NULL) {
goto err;
}
SSL_set_bio(ssl, bio, bio);
SSL_CTX_free(ssl_ctx);
return ssl;
err:
if (bio != NULL) {
BIO_free(bio);
}
if (ssl != NULL) {
SSL_free(ssl);
}
if (ssl_ctx != NULL) {
SSL_CTX_free(ssl_ctx);
}
return NULL;
}
int main(int argc, char **argv) {
int i, is_server, ret;
const char *expected_certificate_types = NULL;
const char *expected_next_proto = NULL;
if (argc < 2) {
fprintf(stderr, "Usage: %s (client|server) [flags...]\n", argv[0]);
return 1;
}
if (strcmp(argv[1], "client") == 0) {
is_server = 0;
} else if (strcmp(argv[1], "server") == 0) {
is_server = 1;
} else {
fprintf(stderr, "Usage: %s (client|server) [flags...]\n", argv[0]);
return 1;
}
SSL *ssl = setup_test(is_server);
if (ssl == NULL) {
BIO_print_errors_fp(stdout);
return 1;
}
for (i = 2; i < argc; i++) {
if (strcmp(argv[i], "-fallback-scsv") == 0) {
if (!SSL_enable_fallback_scsv(ssl)) {
BIO_print_errors_fp(stdout);
return 1;
}
} else if (strcmp(argv[i], "-key-file") == 0) {
i++;
if (i >= argc) {
fprintf(stderr, "Missing parameter\n");
return 1;
}
if (!SSL_use_PrivateKey_file(ssl, argv[i], SSL_FILETYPE_PEM)) {
BIO_print_errors_fp(stdout);
return 1;
}
} else if (strcmp(argv[i], "-cert-file") == 0) {
i++;
if (i >= argc) {
fprintf(stderr, "Missing parameter\n");
return 1;
}
if (!SSL_use_certificate_file(ssl, argv[i], SSL_FILETYPE_PEM)) {
BIO_print_errors_fp(stdout);
return 1;
}
} else if (strcmp(argv[i], "-expect-server-name") == 0) {
i++;
if (i >= argc) {
fprintf(stderr, "Missing parameter\n");
return 1;
}
expected_server_name = argv[i];
} else if (strcmp(argv[i], "-expect-certificate-types") == 0) {
i++;
if (i >= argc) {
fprintf(stderr, "Missing parameter\n");
return 1;
}
// Conveniently, 00 is not a certificate type.
expected_certificate_types = argv[i];
} else if (strcmp(argv[i], "-require-any-client-certificate") == 0) {
SSL_set_verify(ssl, SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
skip_verify);
} else if (strcmp(argv[i], "-advertise-npn") == 0) {
i++;
if (i >= argc) {
fprintf(stderr, "Missing parameter\n");
return 1;
}
advertise_npn = argv[i];
} else if (strcmp(argv[i], "-expect-next-proto") == 0) {
i++;
if (i >= argc) {
fprintf(stderr, "Missing parameter\n");
return 1;
}
expected_next_proto = argv[i];
} else {
fprintf(stderr, "Unknown argument: %s\n", argv[i]);
return 1;
}
}
if (is_server) {
ret = SSL_accept(ssl);
} else {
ret = SSL_connect(ssl);
}
if (ret != 1) {
SSL_free(ssl);
BIO_print_errors_fp(stdout);
return 2;
}
if (expected_server_name) {
const char *server_name =
SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name);
if (strcmp(server_name, expected_server_name) != 0) {
fprintf(stderr, "servername mismatch (got %s; want %s)\n",
server_name, expected_server_name);
return 2;
}
if (!early_callback_called) {
fprintf(stderr, "early callback not called\n");
return 2;
}
}
if (expected_certificate_types) {
uint8_t *certificate_types;
int num_certificate_types =
SSL_get0_certificate_types(ssl, &certificate_types);
if (num_certificate_types != (int)strlen(expected_certificate_types) ||
memcmp(certificate_types,
expected_certificate_types,
num_certificate_types) != 0) {
fprintf(stderr, "certificate types mismatch\n");
return 2;
}
}
if (expected_next_proto) {
const uint8_t *next_proto;
unsigned next_proto_len;
SSL_get0_next_proto_negotiated(ssl, &next_proto, &next_proto_len);
if (next_proto_len != strlen(expected_next_proto) ||
memcmp(next_proto, expected_next_proto, next_proto_len) != 0) {
fprintf(stderr, "negotiated next proto mismatch\n");
return 2;
}
}
for (;;) {
uint8_t buf[512];
int n = SSL_read(ssl, buf, sizeof(buf));
if (n < 0) {
SSL_free(ssl);
BIO_print_errors_fp(stdout);
return 3;
} else if (n == 0) {
break;
} else {
for (int i = 0; i < n; i++) {
buf[i] ^= 0xff;
}
int w = SSL_write(ssl, buf, n);
if (w != n) {
SSL_free(ssl);
BIO_print_errors_fp(stdout);
return 4;
}
}
}
SSL_free(ssl);
return 0;
}
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