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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 07:33:12 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 07:33:12 +0000 |
commit | 36082a2fe36ecd800d784ae44c14f1f18c66a7e9 (patch) | |
tree | 6c68e0c0097987aff85a01dabddd34b862309a7c /tests/keylog-func.c | |
parent | Initial commit. (diff) | |
download | gnutls28-upstream.tar.xz gnutls28-upstream.zip |
Adding upstream version 3.7.9.upstream/3.7.9upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | tests/keylog-func.c | 353 |
1 files changed, 353 insertions, 0 deletions
diff --git a/tests/keylog-func.c b/tests/keylog-func.c new file mode 100644 index 0000000..8145c55 --- /dev/null +++ b/tests/keylog-func.c @@ -0,0 +1,353 @@ +/* + * Copyright (C) 2019 Free Software Foundation, Inc. + * + * Author: Aniketh Girish + * + * This file is part of GnuTLS. + * + * The GnuTLS is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public License + * as published by the Free Software Foundation; either version 2.1 of + * the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/> + * + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <assert.h> + +#if !defined(__linux__) || !defined(__GNUC__) + +int main(int argc, char **argv) +{ + exit(77); +} + +#else + +#include <string.h> +#include <sys/types.h> +#include <netinet/in.h> +#include <sys/socket.h> +#include <sys/wait.h> +#include <arpa/inet.h> +#include <unistd.h> +#include <gnutls/gnutls.h> +#include <gnutls/crypto.h> + +#include "cert-common.h" +#include "utils.h" + +/* This program tests whether a keylog function is called. + */ + +static void terminate(void); + +static void server_log_func(int level, const char *str) +{ + fprintf(stderr, "server|<%d>| %s", level, str); +} + +static void client_log_func(int level, const char *str) +{ + fprintf(stderr, "client|<%d>| %s", level, str); +} + +const char *side = ""; + +/* These are global */ +static pid_t child; +#define MAX_BUF 1024 +#define MSG "Hello TLS" + +static int +keylog_func(gnutls_session_t session, + const char *label, + const gnutls_datum_t *secret) +{ + unsigned int *call_count = gnutls_session_get_ptr(session); + static const char *exp_labels[] = { + "CLIENT_HANDSHAKE_TRAFFIC_SECRET", + "SERVER_HANDSHAKE_TRAFFIC_SECRET", + "EXPORTER_SECRET", + "CLIENT_TRAFFIC_SECRET_0", + "SERVER_TRAFFIC_SECRET_0" + }; + + if (*call_count >= sizeof(exp_labels)/sizeof(exp_labels[0])) + fail("unexpected secret at call count %u\n", + *call_count); + + if (strcmp(label, exp_labels[*call_count]) != 0) + fail("unexpected %s at call count %u\n", + label, *call_count); + else if (debug) + success("received %s at call count %u\n", + label, *call_count); + + (*call_count)++; + return 0; +} + +static void client(int fd, const char *prio, unsigned int exp_call_count) +{ + gnutls_session_t session; + char buffer[MAX_BUF + 1]; + unsigned int call_count = 0; + int ret, ii; + gnutls_certificate_credentials_t clientx509cred; + const char *err; + /* Need to enable anonymous KX specifically. */ + + global_init(); + + if (debug) { + gnutls_global_set_log_function(client_log_func); + gnutls_global_set_log_level(4711); + } + + gnutls_certificate_allocate_credentials(&clientx509cred); + + /* Initialize TLS session + */ + gnutls_init(&session, GNUTLS_CLIENT); + + gnutls_session_set_ptr(session, &call_count); + + /* Use default priorities */ + ret = gnutls_priority_set_direct(session, prio, &err); + if (ret < 0) { + fail("client: priority set failed (%s): %s\n", + gnutls_strerror(ret), err); + exit(1); + } + + ret = gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, + clientx509cred); + if (ret < 0) + exit(1); + + gnutls_transport_set_int(session, fd); + + gnutls_session_set_keylog_function(session, keylog_func); + assert(gnutls_session_get_keylog_function(session) == keylog_func); + + /* Perform the TLS handshake + */ + do { + ret = gnutls_handshake(session); + } + while (ret < 0 && gnutls_error_is_fatal(ret) == 0); + + if (ret < 0) + fail("client: Handshake failed: %s\n", gnutls_strerror(ret)); + else { + if (debug) + success("client: Handshake was completed\n"); + } + + if (debug) + success("client: TLS version is: %s\n", + gnutls_protocol_get_name + (gnutls_protocol_get_version(session))); + + gnutls_record_send(session, MSG, strlen(MSG)); + + do { + ret = gnutls_record_recv(session, buffer, MAX_BUF); + } while (ret == GNUTLS_E_AGAIN); + if (ret == 0) { + if (debug) + success + ("client: Peer has closed the TLS connection\n"); + } else if (ret < 0) { + fail("client: Error: %s\n", gnutls_strerror(ret)); + } + + if (debug) { + printf("- Received %d bytes: ", ret); + for (ii = 0; ii < ret; ii++) { + fputc(buffer[ii], stdout); + } + fputs("\n", stdout); + } + + if (call_count != exp_call_count) + fail("secret hook is not called %u times (%u)\n", + call_count, exp_call_count); + + gnutls_bye(session, GNUTLS_SHUT_WR); + + close(fd); + + gnutls_deinit(session); + + gnutls_certificate_free_credentials(clientx509cred); + + gnutls_global_deinit(); +} + +static void server(int fd, const char *prio, unsigned int exp_call_count) +{ + int ret; + char buffer[MAX_BUF + 1]; + gnutls_session_t session; + unsigned int call_count = 0; + gnutls_certificate_credentials_t serverx509cred; + + /* this must be called once in the program + */ + global_init(); + + if (debug) { + gnutls_global_set_log_function(server_log_func); + gnutls_global_set_log_level(4711); + } + + gnutls_certificate_allocate_credentials(&serverx509cred); + + gnutls_init(&session, GNUTLS_SERVER); + + gnutls_session_set_ptr(session, &call_count); + + /* avoid calling all the priority functions, since the defaults + * are adequate. + */ + ret = gnutls_priority_set_direct(session, + "NORMAL:-VERS-ALL:+VERS-TLS1.3:-KX-ALL:-SIGN-ALL:+SIGN-RSA-PSS-RSAE-SHA384:-GROUP-ALL:+GROUP-SECP256R1", NULL); + if (ret < 0) { + fail("server: priority set failed (%s)\n\n", + gnutls_strerror(ret)); + terminate(); + } + + gnutls_certificate_set_x509_key_mem(serverx509cred, + &server_cert, &server_key, + GNUTLS_X509_FMT_PEM); + gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, + serverx509cred); + + gnutls_transport_set_int(session, fd); + + gnutls_session_set_keylog_function(session, keylog_func); + + do { + ret = gnutls_handshake(session); + } + while (ret < 0 && gnutls_error_is_fatal(ret) == 0); + if (ret < 0) { + close(fd); + gnutls_deinit(session); + fail("server: Handshake has failed (%s)\n\n", + gnutls_strerror(ret)); + terminate(); + } + if (debug) { + success("server: Handshake was completed\n"); + } + if (debug) + success("server: TLS version is: %s\n", + gnutls_protocol_get_name + (gnutls_protocol_get_version(session))); + + memset(buffer, 0, MAX_BUF + 1); + + do { + ret = gnutls_record_recv(session, buffer, MAX_BUF); + } while (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED); + + if (ret == 0) { + if (debug) + success("server: Peer has closed the GnuTLS connection\n"); + } else if (ret < 0) { + fail("server: Received corrupted data(%d). Closing...\n", ret); + } else if (ret > 0) { + /* echo data back to the client + */ + gnutls_record_send(session, buffer, + strlen(buffer)); + } + + if (call_count != exp_call_count) + fail("secret hook is not called %u times (%u)\n", + call_count, exp_call_count); + + /* do not wait for the peer to close the connection. + */ + gnutls_bye(session, GNUTLS_SHUT_WR); + + close(fd); + gnutls_deinit(session); + + gnutls_certificate_free_credentials(serverx509cred); + + gnutls_global_deinit(); + + if (debug) + success("server: finished\n"); +} + +static void terminate(void) +{ + int status = 0; + + if (child) { + kill(child, SIGTERM); + wait(&status); + } + exit(1); +} + +static void +run(const char *prio, unsigned int exp_call_count) +{ + int fd[2]; + int ret; + + signal(SIGPIPE, SIG_IGN); + + ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fd); + if (ret < 0) { + perror("socketpair"); + exit(1); + } + + child = fork(); + if (child < 0) { + perror("fork"); + fail("fork"); + exit(1); + } + + if (child) { + int status = 0; + /* parent */ + + server(fd[0], prio, exp_call_count); + wait(&status); + check_wait_status(status); + } else { + close(fd[0]); + client(fd[1], prio, exp_call_count); + exit(0); + } +} + +void doit(void) +{ + run("NORMAL:-VERS-ALL:+VERS-TLS1.3", 5); +} + +#endif /* _WIN32 */ |