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openssl/test/bio_dgram_test.c
Hugo Landau 664e096cf9 BIO_dgram support for BIO_sendmmsg/BIO_recvmmsg 
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18270)
2022-09-01 18:03:10 +10:00

464 lines
12 KiB
C
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/*
* Copyright 2021 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 <string.h>
#include <openssl/bio.h>
#include "testutil.h"
#include "internal/sockets.h"
#if !defined(OPENSSL_NO_DGRAM) && !defined(OPENSSL_NO_SOCK)
static int compare_addr(const BIO_ADDR *a, const BIO_ADDR *b)
{
struct in_addr xa, xb;
#if defined(OPENSSL_USE_IPV6)
struct in6_addr xa6, xb6;
#endif
void *pa, *pb;
size_t slen, tmplen;
if (BIO_ADDR_family(a) != BIO_ADDR_family(b))
return 0;
if (BIO_ADDR_family(a) == AF_INET) {
pa = &xa;
pb = &xb;
slen = sizeof(xa);
}
#if defined(OPENSSL_USE_IPV6)
else if (BIO_ADDR_family(a) == AF_INET6) {
pa = &xa6;
pb = &xb6;
slen = sizeof(xa6);
}
#endif
else {
return 0;
}
tmplen = slen;
if (!TEST_int_eq(BIO_ADDR_rawaddress(a, pa, &tmplen), 1))
return 0;
tmplen = slen;
if (!TEST_int_eq(BIO_ADDR_rawaddress(b, pb, &tmplen), 1))
return 0;
if (!TEST_mem_eq(pa, slen, pb, slen))
return 0;
if (!TEST_int_eq(BIO_ADDR_rawport(a), BIO_ADDR_rawport(b)))
return 0;
return 1;
}
static int do_sendmmsg(BIO *b, BIO_MSG *msg,
size_t num_msg, uint64_t flags,
size_t *num_processed)
{
size_t done;
for (done = 0; done < num_msg; ) {
if (!BIO_sendmmsg(b, msg + done, sizeof(BIO_MSG),
num_msg - done, flags, num_processed))
return 0;
done += *num_processed;
}
*num_processed = done;
return 1;
}
static int do_recvmmsg(BIO *b, BIO_MSG *msg,
size_t num_msg, uint64_t flags,
size_t *num_processed)
{
size_t done;
for (done = 0; done < num_msg; ) {
if (!BIO_recvmmsg(b, msg + done, sizeof(BIO_MSG),
num_msg - done, flags, num_processed))
return 0;
done += *num_processed;
}
*num_processed = done;
return 1;
}
static int test_bio_dgram_impl(int af, int use_local)
{
int testresult = 0;
BIO *b1 = NULL, *b2 = NULL;
int fd1 = -1, fd2 = -1;
BIO_ADDR *addr1 = NULL, *addr2 = NULL, *addr3 = NULL, *addr4 = NULL,
*addr5 = NULL, *addr6 = NULL;
struct in_addr ina = {0};
#if defined(OPENSSL_USE_IPV6)
struct in6_addr ina6 = {0};
#endif
void *pina;
size_t inal, i;
union BIO_sock_info_u info1 = {0}, info2 = {0};
char rx_buf[128], rx_buf2[128];
BIO_MSG tx_msg[128], rx_msg[128];
char tx_buf[128];
size_t num_processed = 0;
ina.s_addr = htonl(0x7f000001UL);
ina6.s6_addr[15] = 1;
if (af == AF_INET) {
TEST_info("# Testing with AF_INET, local=%d\n", use_local);
pina = &ina;
inal = sizeof(ina);
}
#if defined(OPENSSL_USE_IPV6)
else if (af == AF_INET6) {
TEST_info("# Testing with AF_INET6, local=%d\n", use_local);
pina = &ina6;
inal = sizeof(ina6);
}
#endif
else {
goto err;
}
addr1 = BIO_ADDR_new();
if (!TEST_ptr(addr1))
goto err;
addr2 = BIO_ADDR_new();
if (!TEST_ptr(addr2))
goto err;
addr3 = BIO_ADDR_new();
if (!TEST_ptr(addr3))
goto err;
addr4 = BIO_ADDR_new();
if (!TEST_ptr(addr4))
goto err;
addr5 = BIO_ADDR_new();
if (!TEST_ptr(addr5))
goto err;
addr6 = BIO_ADDR_new();
if (!TEST_ptr(addr6))
goto err;
if (!TEST_int_eq(BIO_ADDR_rawmake(addr1, af, pina, inal, 0), 1))
goto err;
if (!TEST_int_eq(BIO_ADDR_rawmake(addr2, af, pina, inal, 0), 1))
goto err;
fd1 = BIO_socket(af, SOCK_DGRAM, IPPROTO_UDP, 0);
if (!TEST_int_ge(fd1, 0))
goto err;
fd2 = BIO_socket(af, SOCK_DGRAM, IPPROTO_UDP, 0);
if (!TEST_int_ge(fd2, 0))
goto err;
if (!TEST_int_gt(BIO_bind(fd1, addr1, 0), 0))
goto err;
if (!TEST_int_gt(BIO_bind(fd2, addr2, 0), 0))
goto err;
info1.addr = addr1;
if (!TEST_int_gt(BIO_sock_info(fd1, BIO_SOCK_INFO_ADDRESS, &info1), 0))
goto err;
info2.addr = addr2;
if (!TEST_int_gt(BIO_sock_info(fd2, BIO_SOCK_INFO_ADDRESS, &info2), 0))
goto err;
if (!TEST_int_gt(BIO_ADDR_rawport(addr1), 0))
goto err;
if (!TEST_int_gt(BIO_ADDR_rawport(addr2), 0))
goto err;
b1 = BIO_new_dgram(fd1, 0);
if (!TEST_ptr(b1))
goto err;
b2 = BIO_new_dgram(fd2, 0);
if (!TEST_ptr(b2))
goto err;
if (!TEST_int_gt(BIO_dgram_set_peer(b1, addr2), 0))
goto err;
if (!TEST_int_gt(BIO_write(b1, "hello", 5), 0))
goto err;
/* Receiving automatically sets peer as source addr */
if (!TEST_int_eq(BIO_read(b2, rx_buf, sizeof(rx_buf)), 5))
goto err;
if (!TEST_mem_eq(rx_buf, 5, "hello", 5))
goto err;
if (!TEST_int_gt(BIO_dgram_get_peer(b2, addr3), 0))
goto err;
if (!TEST_int_eq(compare_addr(addr3, addr1), 1))
goto err;
/* Clear peer */
if (!TEST_int_gt(BIO_ADDR_rawmake(addr3, af, pina, inal, 0), 0))
goto err;
if (!TEST_int_gt(BIO_dgram_set_peer(b1, addr3), 0))
goto err;
if (!TEST_int_gt(BIO_dgram_set_peer(b2, addr3), 0))
goto err;
/* Now test using sendmmsg/recvmmsg with no peer set */
tx_msg[0].data = "apple";
tx_msg[0].data_len = 5;
tx_msg[0].peer = NULL;
tx_msg[0].local = NULL;
tx_msg[0].flags = 0;
tx_msg[1].data = "orange";
tx_msg[1].data_len = 6;
tx_msg[1].peer = NULL;
tx_msg[1].local = NULL;
tx_msg[1].flags = 0;
/* First effort should fail due to missing destination address */
if (!TEST_false(do_sendmmsg(b1, tx_msg, 2, 0, &num_processed))
|| !TEST_size_t_eq(num_processed, 0))
goto err;
/*
* Second effort should fail due to local being requested
* when not enabled
*/
tx_msg[0].peer = addr2;
tx_msg[0].local = addr1;
tx_msg[1].peer = addr2;
tx_msg[1].local = addr1;
if (!TEST_false(do_sendmmsg(b1, tx_msg, 2, 0, &num_processed)
|| !TEST_size_t_eq(num_processed, 0)))
goto err;
/* Enable local if we are using it */
if (BIO_dgram_get_local_addr_cap(b1) > 0 && use_local) {
if (!TEST_int_eq(BIO_dgram_set_local_addr_enable(b1, 1), 1))
goto err;
} else {
tx_msg[0].local = NULL;
tx_msg[1].local = NULL;
use_local = 0;
}
/* Third effort should succeed */
if (!TEST_true(do_sendmmsg(b1, tx_msg, 2, 0, &num_processed))
|| !TEST_size_t_eq(num_processed, 2))
goto err;
/* Now try receiving */
rx_msg[0].data = rx_buf;
rx_msg[0].data_len = sizeof(rx_buf);
rx_msg[0].peer = addr3;
rx_msg[0].local = addr4;
rx_msg[0].flags = (1UL<<31); /* undefined flag, should be erased */
memset(rx_buf, 0, sizeof(rx_buf));
rx_msg[1].data = rx_buf2;
rx_msg[1].data_len = sizeof(rx_buf2);
rx_msg[1].peer = addr5;
rx_msg[1].local = addr6;
rx_msg[1].flags = (1UL<<31); /* undefined flag, should be erased */
memset(rx_buf2, 0, sizeof(rx_buf2));
/*
* Should fail at first due to local being requested when not
* enabled
*/
if (!TEST_false(do_recvmmsg(b2, rx_msg, 2, 0, &num_processed))
|| !TEST_size_t_eq(num_processed, 0))
goto err;
/* Fields have not been modified */
if (!TEST_int_eq((int)rx_msg[0].data_len, sizeof(rx_buf)))
goto err;
if (!TEST_int_eq((int)rx_msg[1].data_len, sizeof(rx_buf2)))
goto err;
if (!TEST_ulong_eq((unsigned long)rx_msg[0].flags, 1UL<<31))
goto err;
if (!TEST_ulong_eq((unsigned long)rx_msg[1].flags, 1UL<<31))
goto err;
/* Enable local if we are using it */
if (BIO_dgram_get_local_addr_cap(b2) > 0 && use_local) {
if (!TEST_int_eq(BIO_dgram_set_local_addr_enable(b2, 1), 1))
goto err;
} else {
rx_msg[0].local = NULL;
rx_msg[1].local = NULL;
use_local = 0;
}
/* Do the receive. */
if (!TEST_true(do_recvmmsg(b2, rx_msg, 2, 0, &num_processed))
|| !TEST_size_t_eq(num_processed, 2))
goto err;
/* data_len should have been updated correctly */
if (!TEST_int_eq((int)rx_msg[0].data_len, 5))
goto err;
if (!TEST_int_eq((int)rx_msg[1].data_len, 6))
goto err;
/* flags should have been zeroed */
if (!TEST_int_eq((int)rx_msg[0].flags, 0))
goto err;
if (!TEST_int_eq((int)rx_msg[1].flags, 0))
goto err;
/* peer address should match expected */
if (!TEST_int_eq(compare_addr(addr3, addr1), 1))
goto err;
if (!TEST_int_eq(compare_addr(addr5, addr1), 1))
goto err;
/*
* Do not test local address yet as some platforms do not reliably return
* local addresses for messages queued for RX before local address support
* was enabled. Instead, send some new messages and test they're received
* with the correct local addresses.
*/
if (!TEST_true(do_sendmmsg(b1, tx_msg, 2, 0, &num_processed))
|| !TEST_size_t_eq(num_processed, 2))
goto err;
/* Receive the messages. */
rx_msg[0].data_len = sizeof(rx_buf);
rx_msg[1].data_len = sizeof(rx_buf2);
if (!TEST_true(do_recvmmsg(b2, rx_msg, 2, 0, &num_processed))
|| !TEST_size_t_eq(num_processed, 2))
goto err;
if (rx_msg[0].local != NULL) {
/* If we are using local, it should match expected */
if (!TEST_int_eq(compare_addr(addr4, addr2), 1))
goto err;
if (!TEST_int_eq(compare_addr(addr6, addr2), 1))
goto err;
}
/*
* Try sending more than can be handled in one sendmmsg call (when using the
* sendmmsg implementation)
*/
for (i = 0; i < OSSL_NELEM(tx_msg); ++i) {
tx_buf[i] = (char)i;
tx_msg[i].data = tx_buf + i;
tx_msg[i].data_len = 1;
tx_msg[i].peer = addr2;
tx_msg[i].local = use_local ? addr1 : NULL;
tx_msg[i].flags = 0;
}
if (!TEST_true(do_sendmmsg(b1, tx_msg, OSSL_NELEM(tx_msg), 0, &num_processed))
|| !TEST_size_t_eq(num_processed, OSSL_NELEM(tx_msg)))
goto err;
/*
* Try receiving more than can be handled in one recvmmsg call (when using
* the recvmmsg implementation)
*/
for (i = 0; i < OSSL_NELEM(rx_msg); ++i) {
rx_buf[i] = '\0';
rx_msg[i].data = rx_buf + i;
rx_msg[i].data_len = 1;
rx_msg[i].peer = NULL;
rx_msg[i].local = NULL;
rx_msg[i].flags = 0;
}
if (!TEST_true(do_recvmmsg(b2, rx_msg, OSSL_NELEM(rx_msg), 0, &num_processed))
|| !TEST_size_t_eq(num_processed, OSSL_NELEM(rx_msg)))
goto err;
if (!TEST_mem_eq(tx_buf, OSSL_NELEM(tx_msg), rx_buf, OSSL_NELEM(tx_msg)))
goto err;
testresult = 1;
err:
BIO_free(b1);
BIO_free(b2);
if (fd1 >= 0)
BIO_closesocket(fd1);
if (fd2 >= 0)
BIO_closesocket(fd2);
BIO_ADDR_free(addr1);
BIO_ADDR_free(addr2);
BIO_ADDR_free(addr3);
BIO_ADDR_free(addr4);
BIO_ADDR_free(addr5);
BIO_ADDR_free(addr6);
return testresult;
}
struct bio_dgram_case {
int af, local;
};
static const struct bio_dgram_case bio_dgram_cases[] = {
/* Test without local */
{ AF_INET, 0 },
#if defined(OPENSSL_USE_IPV6)
{ AF_INET6, 0 },
#endif
/* Test with local */
{ AF_INET, 1 },
#if defined(OPENSSL_USE_IPV6)
{ AF_INET6, 1 }
#endif
};
static int test_bio_dgram(int idx)
{
return test_bio_dgram_impl(bio_dgram_cases[idx].af,
bio_dgram_cases[idx].local);
}
#endif /* !defined(OPENSSL_NO_DGRAM) && !defined(OPENSSL_NO_SOCK) */
int setup_tests(void)
{
if (!test_skip_common_options()) {
TEST_error("Error parsing test options\n");
return 0;
}
#if !defined(OPENSSL_NO_DGRAM) && !defined(OPENSSL_NO_SOCK)
ADD_ALL_TESTS(test_bio_dgram, OSSL_NELEM(bio_dgram_cases));
#endif
return 1;
}
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