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Revision 098f27f9ef8be2a418f76896ee3c824e8709fcf7 authored by Matt Caswell on 17 October 2023, 13:55:48 UTC, committed by Tomas Mraz on 19 October 2023, 09:54:44 UTC
Ignore ping deadline when calculating tick deadline if we can't send
If the CC TX allowance is zero then we cannot send a PING frame at the
moment, so do not take into account the ping deadline when calculating the
tick deadline in that case.

This avoids the hang found by the fuzzer mentioned in
https://github.com/openssl/openssl/pull/22368#issuecomment-1765131727

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22410)
1 parent 56e3032
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  • test
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  • provider_internal_test.c
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provider_internal_test.c
/*
 * Copyright 2019-2023 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 <stddef.h>
#include <openssl/crypto.h>
#include "internal/provider.h"
#include "testutil.h"

extern OSSL_provider_init_fn PROVIDER_INIT_FUNCTION_NAME;

static char buf[256];
static OSSL_PARAM greeting_request[] = {
    { "greeting", OSSL_PARAM_UTF8_STRING, buf, sizeof(buf), 0 },
    { NULL, 0, NULL, 0, 0 }
};

static int test_provider(OSSL_PROVIDER *prov, const char *expected_greeting)
{
    const char *greeting = NULL;
    int ret = 0;

    ret =
        TEST_true(ossl_provider_activate(prov, 1, 0))
        && TEST_true(ossl_provider_get_params(prov, greeting_request))
        && TEST_ptr(greeting = greeting_request[0].data)
        && TEST_size_t_gt(greeting_request[0].data_size, 0)
        && TEST_str_eq(greeting, expected_greeting)
        && TEST_true(ossl_provider_deactivate(prov, 1));

    TEST_info("Got this greeting: %s\n", greeting);
    ossl_provider_free(prov);
    return ret;
}

static const char *expected_greeting1(const char *name)
{
    static char expected_greeting[256] = "";

    BIO_snprintf(expected_greeting, sizeof(expected_greeting),
                 "Hello OpenSSL %.20s, greetings from %s!",
                 OPENSSL_VERSION_STR, name);

    return expected_greeting;
}

static int test_builtin_provider(void)
{
    const char *name = "p_test_builtin";
    OSSL_PROVIDER *prov = NULL;
    int ret;

    /*
     * We set properties that we know the providers we are using don't have.
     * This should mean that the p_test provider will fail any fetches - which
     * is something we test inside the provider.
     */
    EVP_set_default_properties(NULL, "fips=yes");

    ret =
        TEST_ptr(prov =
                 ossl_provider_new(NULL, name, PROVIDER_INIT_FUNCTION_NAME, NULL, 0))
        && test_provider(prov, expected_greeting1(name));

    EVP_set_default_properties(NULL, "");

    return ret;
}

#ifndef NO_PROVIDER_MODULE
static int test_loaded_provider(void)
{
    const char *name = "p_test";
    OSSL_PROVIDER *prov = NULL;

    return
        TEST_ptr(prov = ossl_provider_new(NULL, name, NULL, NULL, 0))
        && test_provider(prov, expected_greeting1(name));
}

# ifndef OPENSSL_NO_AUTOLOAD_CONFIG
static int test_configured_provider(void)
{
    const char *name = "p_test_configured";
    OSSL_PROVIDER *prov = NULL;
    /* This MUST match the config file */
    const char *expected_greeting =
        "Hello OpenSSL, greetings from Test Provider";

    return
        TEST_ptr(prov = ossl_provider_find(NULL, name, 0))
        && test_provider(prov, expected_greeting);
}
# endif
#endif

static int test_cache_flushes(void)
{
    OSSL_LIB_CTX *ctx;
    OSSL_PROVIDER *prov = NULL;
    EVP_MD *md = NULL;
    int ret = 0;

    if (!TEST_ptr(ctx = OSSL_LIB_CTX_new())
            || !TEST_ptr(prov = OSSL_PROVIDER_load(ctx, "default"))
            || !TEST_true(OSSL_PROVIDER_available(ctx, "default"))
            || !TEST_ptr(md = EVP_MD_fetch(ctx, "SHA256", NULL)))
        goto err;
    EVP_MD_free(md);
    md = NULL;
    OSSL_PROVIDER_unload(prov);
    prov = NULL;

    if (!TEST_false(OSSL_PROVIDER_available(ctx, "default")))
        goto err;

    if (!TEST_ptr_null(md = EVP_MD_fetch(ctx, "SHA256", NULL))) {
        const char *provname = OSSL_PROVIDER_get0_name(EVP_MD_get0_provider(md));

        if (OSSL_PROVIDER_available(NULL, provname))
            TEST_info("%s provider is available\n", provname);
        else
            TEST_info("%s provider is not available\n", provname);
    }

    ret = 1;
 err:
    OSSL_PROVIDER_unload(prov);
    EVP_MD_free(md);
    OSSL_LIB_CTX_free(ctx);
    return ret;
}

int setup_tests(void)
{
    ADD_TEST(test_builtin_provider);
#ifndef NO_PROVIDER_MODULE
    ADD_TEST(test_loaded_provider);
# ifndef OPENSSL_NO_AUTOLOAD_CONFIG
    ADD_TEST(test_configured_provider);
# endif
#endif
    ADD_TEST(test_cache_flushes);
    return 1;
}

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