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a763ca1177
openssl/test/helpers/ssltestlib.c
Matt Caswell a763ca1177 Stop disabling TLSv1.3 if ec and dh are disabled 
Even if EC and DH are disabled then we may still be able to use TLSv1.3
if we have groups that have been plugged in by an external provider.

Fixes #13767

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13916)
2021-02-05 15:22:40 +00:00

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/*
* Copyright 2016-2020 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 <string.h>
#include "internal/nelem.h"
#include "internal/cryptlib.h" /* for ossl_sleep() */
#include "ssltestlib.h"
#include "../testutil.h"
#include "e_os.h"
#ifdef OPENSSL_SYS_UNIX
# include <unistd.h>
# ifndef OPENSSL_NO_KTLS
# include <netinet/in.h>
# include <netinet/in.h>
# include <arpa/inet.h>
# include <sys/socket.h>
# include <unistd.h>
# include <fcntl.h>
# endif
#endif
static int tls_dump_new(BIO *bi);
static int tls_dump_free(BIO *a);
static int tls_dump_read(BIO *b, char *out, int outl);
static int tls_dump_write(BIO *b, const char *in, int inl);
static long tls_dump_ctrl(BIO *b, int cmd, long num, void *ptr);
static int tls_dump_gets(BIO *bp, char *buf, int size);
static int tls_dump_puts(BIO *bp, const char *str);
/* Choose a sufficiently large type likely to be unused for this custom BIO */
#define BIO_TYPE_TLS_DUMP_FILTER (0x80 | BIO_TYPE_FILTER)
#define BIO_TYPE_MEMPACKET_TEST 0x81
#define BIO_TYPE_ALWAYS_RETRY 0x82
static BIO_METHOD *method_tls_dump = NULL;
static BIO_METHOD *meth_mem = NULL;
static BIO_METHOD *meth_always_retry = NULL;
/* Note: Not thread safe! */
const BIO_METHOD *bio_f_tls_dump_filter(void)
{
if (method_tls_dump == NULL) {
method_tls_dump = BIO_meth_new(BIO_TYPE_TLS_DUMP_FILTER,
"TLS dump filter");
if ( method_tls_dump == NULL
|| !BIO_meth_set_write(method_tls_dump, tls_dump_write)
|| !BIO_meth_set_read(method_tls_dump, tls_dump_read)
|| !BIO_meth_set_puts(method_tls_dump, tls_dump_puts)
|| !BIO_meth_set_gets(method_tls_dump, tls_dump_gets)
|| !BIO_meth_set_ctrl(method_tls_dump, tls_dump_ctrl)
|| !BIO_meth_set_create(method_tls_dump, tls_dump_new)
|| !BIO_meth_set_destroy(method_tls_dump, tls_dump_free))
return NULL;
}
return method_tls_dump;
}
void bio_f_tls_dump_filter_free(void)
{
BIO_meth_free(method_tls_dump);
}
static int tls_dump_new(BIO *bio)
{
BIO_set_init(bio, 1);
return 1;
}
static int tls_dump_free(BIO *bio)
{
BIO_set_init(bio, 0);
return 1;
}
static void copy_flags(BIO *bio)
{
int flags;
BIO *next = BIO_next(bio);
flags = BIO_test_flags(next, BIO_FLAGS_SHOULD_RETRY | BIO_FLAGS_RWS);
BIO_clear_flags(bio, BIO_FLAGS_SHOULD_RETRY | BIO_FLAGS_RWS);
BIO_set_flags(bio, flags);
}
#define RECORD_CONTENT_TYPE 0
#define RECORD_VERSION_HI 1
#define RECORD_VERSION_LO 2
#define RECORD_EPOCH_HI 3
#define RECORD_EPOCH_LO 4
#define RECORD_SEQUENCE_START 5
#define RECORD_SEQUENCE_END 10
#define RECORD_LEN_HI 11
#define RECORD_LEN_LO 12
#define MSG_TYPE 0
#define MSG_LEN_HI 1
#define MSG_LEN_MID 2
#define MSG_LEN_LO 3
#define MSG_SEQ_HI 4
#define MSG_SEQ_LO 5
#define MSG_FRAG_OFF_HI 6
#define MSG_FRAG_OFF_MID 7
#define MSG_FRAG_OFF_LO 8
#define MSG_FRAG_LEN_HI 9
#define MSG_FRAG_LEN_MID 10
#define MSG_FRAG_LEN_LO 11
static void dump_data(const char *data, int len)
{
int rem, i, content, reclen, msglen, fragoff, fraglen, epoch;
unsigned char *rec;
printf("---- START OF PACKET ----\n");
rem = len;
rec = (unsigned char *)data;
while (rem > 0) {
if (rem != len)
printf("*\n");
printf("*---- START OF RECORD ----\n");
if (rem < DTLS1_RT_HEADER_LENGTH) {
printf("*---- RECORD TRUNCATED ----\n");
break;
}
content = rec[RECORD_CONTENT_TYPE];
printf("** Record Content-type: %d\n", content);
printf("** Record Version: %02x%02x\n",
rec[RECORD_VERSION_HI], rec[RECORD_VERSION_LO]);
epoch = (rec[RECORD_EPOCH_HI] << 8) | rec[RECORD_EPOCH_LO];
printf("** Record Epoch: %d\n", epoch);
printf("** Record Sequence: ");
for (i = RECORD_SEQUENCE_START; i <= RECORD_SEQUENCE_END; i++)
printf("%02x", rec[i]);
reclen = (rec[RECORD_LEN_HI] << 8) | rec[RECORD_LEN_LO];
printf("\n** Record Length: %d\n", reclen);
/* Now look at message */
rec += DTLS1_RT_HEADER_LENGTH;
rem -= DTLS1_RT_HEADER_LENGTH;
if (content == SSL3_RT_HANDSHAKE) {
printf("**---- START OF HANDSHAKE MESSAGE FRAGMENT ----\n");
if (epoch > 0) {
printf("**---- HANDSHAKE MESSAGE FRAGMENT ENCRYPTED ----\n");
} else if (rem < DTLS1_HM_HEADER_LENGTH
|| reclen < DTLS1_HM_HEADER_LENGTH) {
printf("**---- HANDSHAKE MESSAGE FRAGMENT TRUNCATED ----\n");
} else {
printf("*** Message Type: %d\n", rec[MSG_TYPE]);
msglen = (rec[MSG_LEN_HI] << 16) | (rec[MSG_LEN_MID] << 8)
| rec[MSG_LEN_LO];
printf("*** Message Length: %d\n", msglen);
printf("*** Message sequence: %d\n",
(rec[MSG_SEQ_HI] << 8) | rec[MSG_SEQ_LO]);
fragoff = (rec[MSG_FRAG_OFF_HI] << 16)
| (rec[MSG_FRAG_OFF_MID] << 8)
| rec[MSG_FRAG_OFF_LO];
printf("*** Message Fragment offset: %d\n", fragoff);
fraglen = (rec[MSG_FRAG_LEN_HI] << 16)
| (rec[MSG_FRAG_LEN_MID] << 8)
| rec[MSG_FRAG_LEN_LO];
printf("*** Message Fragment len: %d\n", fraglen);
if (fragoff + fraglen > msglen)
printf("***---- HANDSHAKE MESSAGE FRAGMENT INVALID ----\n");
else if (reclen < fraglen)
printf("**---- HANDSHAKE MESSAGE FRAGMENT TRUNCATED ----\n");
else
printf("**---- END OF HANDSHAKE MESSAGE FRAGMENT ----\n");
}
}
if (rem < reclen) {
printf("*---- RECORD TRUNCATED ----\n");
rem = 0;
} else {
rec += reclen;
rem -= reclen;
printf("*---- END OF RECORD ----\n");
}
}
printf("---- END OF PACKET ----\n\n");
fflush(stdout);
}
static int tls_dump_read(BIO *bio, char *out, int outl)
{
int ret;
BIO *next = BIO_next(bio);
ret = BIO_read(next, out, outl);
copy_flags(bio);
if (ret > 0) {
dump_data(out, ret);
}
return ret;
}
static int tls_dump_write(BIO *bio, const char *in, int inl)
{
int ret;
BIO *next = BIO_next(bio);
ret = BIO_write(next, in, inl);
copy_flags(bio);
return ret;
}
static long tls_dump_ctrl(BIO *bio, int cmd, long num, void *ptr)
{
long ret;
BIO *next = BIO_next(bio);
if (next == NULL)
return 0;
switch (cmd) {
case BIO_CTRL_DUP:
ret = 0L;
break;
default:
ret = BIO_ctrl(next, cmd, num, ptr);
break;
}
return ret;
}
static int tls_dump_gets(BIO *bio, char *buf, int size)
{
/* We don't support this - not needed anyway */
return -1;
}
static int tls_dump_puts(BIO *bio, const char *str)
{
return tls_dump_write(bio, str, strlen(str));
}
struct mempacket_st {
unsigned char *data;
int len;
unsigned int num;
unsigned int type;
};
static void mempacket_free(MEMPACKET *pkt)
{
if (pkt->data != NULL)
OPENSSL_free(pkt->data);
OPENSSL_free(pkt);
}
typedef struct mempacket_test_ctx_st {
STACK_OF(MEMPACKET) *pkts;
unsigned int epoch;
unsigned int currrec;
unsigned int currpkt;
unsigned int lastpkt;
unsigned int injected;
unsigned int noinject;
unsigned int dropepoch;
int droprec;
int duprec;
} MEMPACKET_TEST_CTX;
static int mempacket_test_new(BIO *bi);
static int mempacket_test_free(BIO *a);
static int mempacket_test_read(BIO *b, char *out, int outl);
static int mempacket_test_write(BIO *b, const char *in, int inl);
static long mempacket_test_ctrl(BIO *b, int cmd, long num, void *ptr);
static int mempacket_test_gets(BIO *bp, char *buf, int size);
static int mempacket_test_puts(BIO *bp, const char *str);
const BIO_METHOD *bio_s_mempacket_test(void)
{
if (meth_mem == NULL) {
if (!TEST_ptr(meth_mem = BIO_meth_new(BIO_TYPE_MEMPACKET_TEST,
"Mem Packet Test"))
|| !TEST_true(BIO_meth_set_write(meth_mem, mempacket_test_write))
|| !TEST_true(BIO_meth_set_read(meth_mem, mempacket_test_read))
|| !TEST_true(BIO_meth_set_puts(meth_mem, mempacket_test_puts))
|| !TEST_true(BIO_meth_set_gets(meth_mem, mempacket_test_gets))
|| !TEST_true(BIO_meth_set_ctrl(meth_mem, mempacket_test_ctrl))
|| !TEST_true(BIO_meth_set_create(meth_mem, mempacket_test_new))
|| !TEST_true(BIO_meth_set_destroy(meth_mem, mempacket_test_free)))
return NULL;
}
return meth_mem;
}
void bio_s_mempacket_test_free(void)
{
BIO_meth_free(meth_mem);
}
static int mempacket_test_new(BIO *bio)
{
MEMPACKET_TEST_CTX *ctx;
if (!TEST_ptr(ctx = OPENSSL_zalloc(sizeof(*ctx))))
return 0;
if (!TEST_ptr(ctx->pkts = sk_MEMPACKET_new_null())) {
OPENSSL_free(ctx);
return 0;
}
ctx->dropepoch = 0;
ctx->droprec = -1;
BIO_set_init(bio, 1);
BIO_set_data(bio, ctx);
return 1;
}
static int mempacket_test_free(BIO *bio)
{
MEMPACKET_TEST_CTX *ctx = BIO_get_data(bio);
sk_MEMPACKET_pop_free(ctx->pkts, mempacket_free);
OPENSSL_free(ctx);
BIO_set_data(bio, NULL);
BIO_set_init(bio, 0);
return 1;
}
/* Record Header values */
#define EPOCH_HI 3
#define EPOCH_LO 4
#define RECORD_SEQUENCE 10
#define RECORD_LEN_HI 11
#define RECORD_LEN_LO 12
#define STANDARD_PACKET 0
static int mempacket_test_read(BIO *bio, char *out, int outl)
{
MEMPACKET_TEST_CTX *ctx = BIO_get_data(bio);
MEMPACKET *thispkt;
unsigned char *rec;
int rem;
unsigned int seq, offset, len, epoch;
BIO_clear_retry_flags(bio);
thispkt = sk_MEMPACKET_value(ctx->pkts, 0);
if (thispkt == NULL || thispkt->num != ctx->currpkt) {
/* Probably run out of data */
BIO_set_retry_read(bio);
return -1;
}
(void)sk_MEMPACKET_shift(ctx->pkts);
ctx->currpkt++;
if (outl > thispkt->len)
outl = thispkt->len;
if (thispkt->type != INJECT_PACKET_IGNORE_REC_SEQ
&& (ctx->injected || ctx->droprec >= 0)) {
/*
* Overwrite the record sequence number. We strictly number them in
* the order received. Since we are actually a reliable transport
* we know that there won't be any re-ordering. We overwrite to deal
* with any packets that have been injected
*/
for (rem = thispkt->len, rec = thispkt->data; rem > 0; rem -= len) {
if (rem < DTLS1_RT_HEADER_LENGTH)
return -1;
epoch = (rec[EPOCH_HI] << 8) | rec[EPOCH_LO];
if (epoch != ctx->epoch) {
ctx->epoch = epoch;
ctx->currrec = 0;
}
seq = ctx->currrec;
offset = 0;
do {
rec[RECORD_SEQUENCE - offset] = seq & 0xFF;
seq >>= 8;
offset++;
} while (seq > 0);
len = ((rec[RECORD_LEN_HI] << 8) | rec[RECORD_LEN_LO])
+ DTLS1_RT_HEADER_LENGTH;
if (rem < (int)len)
return -1;
if (ctx->droprec == (int)ctx->currrec && ctx->dropepoch == epoch) {
if (rem > (int)len)
memmove(rec, rec + len, rem - len);
outl -= len;
ctx->droprec = -1;
if (outl == 0)
BIO_set_retry_read(bio);
} else {
rec += len;
}
ctx->currrec++;
}
}
memcpy(out, thispkt->data, outl);
mempacket_free(thispkt);
return outl;
}
int mempacket_test_inject(BIO *bio, const char *in, int inl, int pktnum,
int type)
{
MEMPACKET_TEST_CTX *ctx = BIO_get_data(bio);
MEMPACKET *thispkt = NULL, *looppkt, *nextpkt, *allpkts[3];
int i, duprec;
const unsigned char *inu = (const unsigned char *)in;
size_t len = ((inu[RECORD_LEN_HI] << 8) | inu[RECORD_LEN_LO])
+ DTLS1_RT_HEADER_LENGTH;
if (ctx == NULL)
return -1;
if ((size_t)inl < len)
return -1;
if ((size_t)inl == len)
duprec = 0;
else
duprec = ctx->duprec > 0;
/* We don't support arbitrary injection when duplicating records */
if (duprec && pktnum != -1)
return -1;
/* We only allow injection before we've started writing any data */
if (pktnum >= 0) {
if (ctx->noinject)
return -1;
ctx->injected = 1;
} else {
ctx->noinject = 1;
}
for (i = 0; i < (duprec ? 3 : 1); i++) {
if (!TEST_ptr(allpkts[i] = OPENSSL_malloc(sizeof(*thispkt))))
goto err;
thispkt = allpkts[i];
if (!TEST_ptr(thispkt->data = OPENSSL_malloc(inl)))
goto err;
/*
* If we are duplicating the packet, we duplicate it three times. The
* first two times we drop the first record if there are more than one.
* In this way we know that libssl will not be able to make progress
* until it receives the last packet, and hence will be forced to
* buffer these records.
*/
if (duprec && i != 2) {
memcpy(thispkt->data, in + len, inl - len);
thispkt->len = inl - len;
} else {
memcpy(thispkt->data, in, inl);
thispkt->len = inl;
}
thispkt->num = (pktnum >= 0) ? (unsigned int)pktnum : ctx->lastpkt + i;
thispkt->type = type;
}
for(i = 0; (looppkt = sk_MEMPACKET_value(ctx->pkts, i)) != NULL; i++) {
/* Check if we found the right place to insert this packet */
if (looppkt->num > thispkt->num) {
if (sk_MEMPACKET_insert(ctx->pkts, thispkt, i) == 0)
goto err;
/* If we're doing up front injection then we're done */
if (pktnum >= 0)
return inl;
/*
* We need to do some accounting on lastpkt. We increment it first,
* but it might now equal the value of injected packets, so we need
* to skip over those
*/
ctx->lastpkt++;
do {
i++;
nextpkt = sk_MEMPACKET_value(ctx->pkts, i);
if (nextpkt != NULL && nextpkt->num == ctx->lastpkt)
ctx->lastpkt++;
else
return inl;
} while(1);
} else if (looppkt->num == thispkt->num) {
if (!ctx->noinject) {
/* We injected two packets with the same packet number! */
goto err;
}
ctx->lastpkt++;
thispkt->num++;
}
}
/*
* We didn't find any packets with a packet number equal to or greater than
* this one, so we just add it onto the end
*/
for (i = 0; i < (duprec ? 3 : 1); i++) {
thispkt = allpkts[i];
if (!sk_MEMPACKET_push(ctx->pkts, thispkt))
goto err;
if (pktnum < 0)
ctx->lastpkt++;
}
return inl;
err:
for (i = 0; i < (ctx->duprec > 0 ? 3 : 1); i++)
mempacket_free(allpkts[i]);
return -1;
}
static int mempacket_test_write(BIO *bio, const char *in, int inl)
{
return mempacket_test_inject(bio, in, inl, -1, STANDARD_PACKET);
}
static long mempacket_test_ctrl(BIO *bio, int cmd, long num, void *ptr)
{
long ret = 1;
MEMPACKET_TEST_CTX *ctx = BIO_get_data(bio);
MEMPACKET *thispkt;
switch (cmd) {
case BIO_CTRL_EOF:
ret = (long)(sk_MEMPACKET_num(ctx->pkts) == 0);
break;
case BIO_CTRL_GET_CLOSE:
ret = BIO_get_shutdown(bio);
break;
case BIO_CTRL_SET_CLOSE:
BIO_set_shutdown(bio, (int)num);
break;
case BIO_CTRL_WPENDING:
ret = 0L;
break;
case BIO_CTRL_PENDING:
thispkt = sk_MEMPACKET_value(ctx->pkts, 0);
if (thispkt == NULL)
ret = 0;
else
ret = thispkt->len;
break;
case BIO_CTRL_FLUSH:
ret = 1;
break;
case MEMPACKET_CTRL_SET_DROP_EPOCH:
ctx->dropepoch = (unsigned int)num;
break;
case MEMPACKET_CTRL_SET_DROP_REC:
ctx->droprec = (int)num;
break;
case MEMPACKET_CTRL_GET_DROP_REC:
ret = ctx->droprec;
break;
case MEMPACKET_CTRL_SET_DUPLICATE_REC:
ctx->duprec = (int)num;
break;
case BIO_CTRL_RESET:
case BIO_CTRL_DUP:
case BIO_CTRL_PUSH:
case BIO_CTRL_POP:
default:
ret = 0;
break;
}
return ret;
}
static int mempacket_test_gets(BIO *bio, char *buf, int size)
{
/* We don't support this - not needed anyway */
return -1;
}
static int mempacket_test_puts(BIO *bio, const char *str)
{
return mempacket_test_write(bio, str, strlen(str));
}
static int always_retry_new(BIO *bi);
static int always_retry_free(BIO *a);
static int always_retry_read(BIO *b, char *out, int outl);
static int always_retry_write(BIO *b, const char *in, int inl);
static long always_retry_ctrl(BIO *b, int cmd, long num, void *ptr);
static int always_retry_gets(BIO *bp, char *buf, int size);
static int always_retry_puts(BIO *bp, const char *str);
const BIO_METHOD *bio_s_always_retry(void)
{
if (meth_always_retry == NULL) {
if (!TEST_ptr(meth_always_retry = BIO_meth_new(BIO_TYPE_ALWAYS_RETRY,
"Always Retry"))
|| !TEST_true(BIO_meth_set_write(meth_always_retry,
always_retry_write))
|| !TEST_true(BIO_meth_set_read(meth_always_retry,
always_retry_read))
|| !TEST_true(BIO_meth_set_puts(meth_always_retry,
always_retry_puts))
|| !TEST_true(BIO_meth_set_gets(meth_always_retry,
always_retry_gets))
|| !TEST_true(BIO_meth_set_ctrl(meth_always_retry,
always_retry_ctrl))
|| !TEST_true(BIO_meth_set_create(meth_always_retry,
always_retry_new))
|| !TEST_true(BIO_meth_set_destroy(meth_always_retry,
always_retry_free)))
return NULL;
}
return meth_always_retry;
}
void bio_s_always_retry_free(void)
{
BIO_meth_free(meth_always_retry);
}
static int always_retry_new(BIO *bio)
{
BIO_set_init(bio, 1);
return 1;
}
static int always_retry_free(BIO *bio)
{
BIO_set_data(bio, NULL);
BIO_set_init(bio, 0);
return 1;
}
static int always_retry_read(BIO *bio, char *out, int outl)
{
BIO_set_retry_read(bio);
return -1;
}
static int always_retry_write(BIO *bio, const char *in, int inl)
{
BIO_set_retry_write(bio);
return -1;
}
static long always_retry_ctrl(BIO *bio, int cmd, long num, void *ptr)
{
long ret = 1;
switch (cmd) {
case BIO_CTRL_FLUSH:
BIO_set_retry_write(bio);
/* fall through */
case BIO_CTRL_EOF:
case BIO_CTRL_RESET:
case BIO_CTRL_DUP:
case BIO_CTRL_PUSH:
case BIO_CTRL_POP:
default:
ret = 0;
break;
}
return ret;
}
static int always_retry_gets(BIO *bio, char *buf, int size)
{
BIO_set_retry_read(bio);
return -1;
}
static int always_retry_puts(BIO *bio, const char *str)
{
BIO_set_retry_write(bio);
return -1;
}
int create_ssl_ctx_pair(OSSL_LIB_CTX *libctx, const SSL_METHOD *sm,
const SSL_METHOD *cm, int min_proto_version,
int max_proto_version, SSL_CTX **sctx, SSL_CTX **cctx,
char *certfile, char *privkeyfile)
{
SSL_CTX *serverctx = NULL;
SSL_CTX *clientctx = NULL;
if (sctx != NULL) {
if (*sctx != NULL)
serverctx = *sctx;
else if (!TEST_ptr(serverctx = SSL_CTX_new_ex(libctx, NULL, sm)))
goto err;
}
if (cctx != NULL) {
if (*cctx != NULL)
clientctx = *cctx;
else if (!TEST_ptr(clientctx = SSL_CTX_new_ex(libctx, NULL, cm)))
goto err;
}
#if !defined(OPENSSL_NO_TLS1_3) \
&& defined(OPENSSL_NO_EC) \
&& defined(OPENSSL_NO_DH)
/*
* There are no usable built-in TLSv1.3 groups if ec and dh are both
* disabled
*/
if (max_proto_version == 0
&& (sm == TLS_server_method() || cm == TLS_client_method()))
max_proto_version = TLS1_2_VERSION;
#endif
if (serverctx != NULL
&& ((min_proto_version > 0
&& !TEST_true(SSL_CTX_set_min_proto_version(serverctx,
min_proto_version)))
|| (max_proto_version > 0
&& !TEST_true(SSL_CTX_set_max_proto_version(serverctx,
max_proto_version)))))
goto err;
if (clientctx != NULL
&& ((min_proto_version > 0
&& !TEST_true(SSL_CTX_set_min_proto_version(clientctx,
min_proto_version)))
|| (max_proto_version > 0
&& !TEST_true(SSL_CTX_set_max_proto_version(clientctx,
max_proto_version)))))
goto err;
if (serverctx != NULL && certfile != NULL && privkeyfile != NULL) {
if (!TEST_int_eq(SSL_CTX_use_certificate_file(serverctx, certfile,
SSL_FILETYPE_PEM), 1)
|| !TEST_int_eq(SSL_CTX_use_PrivateKey_file(serverctx,
privkeyfile,
SSL_FILETYPE_PEM), 1)
|| !TEST_int_eq(SSL_CTX_check_private_key(serverctx), 1))
goto err;
}
if (sctx != NULL)
*sctx = serverctx;
if (cctx != NULL)
*cctx = clientctx;
return 1;
err:
if (sctx != NULL && *sctx == NULL)
SSL_CTX_free(serverctx);
if (cctx != NULL && *cctx == NULL)
SSL_CTX_free(clientctx);
return 0;
}
#define MAXLOOPS 1000000
#if !defined(OPENSSL_NO_KTLS) && !defined(OPENSSL_NO_SOCK)
static int set_nb(int fd)
{
int flags;
flags = fcntl(fd,F_GETFL,0);
if (flags == -1)
return flags;
flags = fcntl(fd, F_SETFL, flags | O_NONBLOCK);
return flags;
}
int create_test_sockets(int *cfd, int *sfd)
{
struct sockaddr_in sin;
const char *host = "127.0.0.1";
int cfd_connected = 0, ret = 0;
socklen_t slen = sizeof(sin);
int afd = -1;
*cfd = -1;
*sfd = -1;
memset ((char *) &sin, 0, sizeof(sin));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = inet_addr(host);
afd = socket(AF_INET, SOCK_STREAM, 0);
if (afd < 0)
return 0;
if (bind(afd, (struct sockaddr*)&sin, sizeof(sin)) < 0)
goto out;
if (getsockname(afd, (struct sockaddr*)&sin, &slen) < 0)
goto out;
if (listen(afd, 1) < 0)
goto out;
*cfd = socket(AF_INET, SOCK_STREAM, 0);
if (*cfd < 0)
goto out;
if (set_nb(afd) == -1)
goto out;
while (*sfd == -1 || !cfd_connected ) {
*sfd = accept(afd, NULL, 0);
if (*sfd == -1 && errno != EAGAIN)
goto out;
if (!cfd_connected && connect(*cfd, (struct sockaddr*)&sin, sizeof(sin)) < 0)
goto out;
else
cfd_connected = 1;
}
if (set_nb(*cfd) == -1 || set_nb(*sfd) == -1)
goto out;
ret = 1;
goto success;
out:
if (*cfd != -1)
close(*cfd);
if (*sfd != -1)
close(*sfd);
success:
if (afd != -1)
close(afd);
return ret;
}
int create_ssl_objects2(SSL_CTX *serverctx, SSL_CTX *clientctx, SSL **sssl,
SSL **cssl, int sfd, int cfd)
{
SSL *serverssl = NULL, *clientssl = NULL;
BIO *s_to_c_bio = NULL, *c_to_s_bio = NULL;
if (*sssl != NULL)
serverssl = *sssl;
else if (!TEST_ptr(serverssl = SSL_new(serverctx)))
goto error;
if (*cssl != NULL)
clientssl = *cssl;
else if (!TEST_ptr(clientssl = SSL_new(clientctx)))
goto error;
if (!TEST_ptr(s_to_c_bio = BIO_new_socket(sfd, BIO_NOCLOSE))
|| !TEST_ptr(c_to_s_bio = BIO_new_socket(cfd, BIO_NOCLOSE)))
goto error;
SSL_set_bio(clientssl, c_to_s_bio, c_to_s_bio);
SSL_set_bio(serverssl, s_to_c_bio, s_to_c_bio);
*sssl = serverssl;
*cssl = clientssl;
return 1;
error:
SSL_free(serverssl);
SSL_free(clientssl);
BIO_free(s_to_c_bio);
BIO_free(c_to_s_bio);
return 0;
}
#endif
/*
* NOTE: Transfers control of the BIOs - this function will free them on error
*/
int create_ssl_objects(SSL_CTX *serverctx, SSL_CTX *clientctx, SSL **sssl,
SSL **cssl, BIO *s_to_c_fbio, BIO *c_to_s_fbio)
{
SSL *serverssl = NULL, *clientssl = NULL;
BIO *s_to_c_bio = NULL, *c_to_s_bio = NULL;
if (*sssl != NULL)
serverssl = *sssl;
else if (!TEST_ptr(serverssl = SSL_new(serverctx)))
goto error;
if (*cssl != NULL)
clientssl = *cssl;
else if (!TEST_ptr(clientssl = SSL_new(clientctx)))
goto error;
if (SSL_is_dtls(clientssl)) {
if (!TEST_ptr(s_to_c_bio = BIO_new(bio_s_mempacket_test()))
|| !TEST_ptr(c_to_s_bio = BIO_new(bio_s_mempacket_test())))
goto error;
} else {
if (!TEST_ptr(s_to_c_bio = BIO_new(BIO_s_mem()))
|| !TEST_ptr(c_to_s_bio = BIO_new(BIO_s_mem())))
goto error;
}
if (s_to_c_fbio != NULL
&& !TEST_ptr(s_to_c_bio = BIO_push(s_to_c_fbio, s_to_c_bio)))
goto error;
if (c_to_s_fbio != NULL
&& !TEST_ptr(c_to_s_bio = BIO_push(c_to_s_fbio, c_to_s_bio)))
goto error;
/* Set Non-blocking IO behaviour */
BIO_set_mem_eof_return(s_to_c_bio, -1);
BIO_set_mem_eof_return(c_to_s_bio, -1);
/* Up ref these as we are passing them to two SSL objects */
SSL_set_bio(serverssl, c_to_s_bio, s_to_c_bio);
BIO_up_ref(s_to_c_bio);
BIO_up_ref(c_to_s_bio);
SSL_set_bio(clientssl, s_to_c_bio, c_to_s_bio);
*sssl = serverssl;
*cssl = clientssl;
return 1;
error:
SSL_free(serverssl);
SSL_free(clientssl);
BIO_free(s_to_c_bio);
BIO_free(c_to_s_bio);
BIO_free(s_to_c_fbio);
BIO_free(c_to_s_fbio);
return 0;
}
/*
* Create an SSL connection, but does not read any post-handshake
* NewSessionTicket messages.
* If |read| is set and we're using DTLS then we will attempt to SSL_read on
* the connection once we've completed one half of it, to ensure any retransmits
* get triggered.
* We stop the connection attempt (and return a failure value) if either peer
* has SSL_get_error() return the value in the |want| parameter. The connection
* attempt could be restarted by a subsequent call to this function.
*/
int create_bare_ssl_connection(SSL *serverssl, SSL *clientssl, int want,
int read)
{
int retc = -1, rets = -1, err, abortctr = 0;
int clienterr = 0, servererr = 0;
int isdtls = SSL_is_dtls(serverssl);
do {
err = SSL_ERROR_WANT_WRITE;
while (!clienterr && retc <= 0 && err == SSL_ERROR_WANT_WRITE) {
retc = SSL_connect(clientssl);
if (retc <= 0)
err = SSL_get_error(clientssl, retc);
}
if (!clienterr && retc <= 0 && err != SSL_ERROR_WANT_READ) {
TEST_info("SSL_connect() failed %d, %d", retc, err);
if (want != SSL_ERROR_SSL)
TEST_openssl_errors();
clienterr = 1;
}
if (want != SSL_ERROR_NONE && err == want)
return 0;
err = SSL_ERROR_WANT_WRITE;
while (!servererr && rets <= 0 && err == SSL_ERROR_WANT_WRITE) {
rets = SSL_accept(serverssl);
if (rets <= 0)
err = SSL_get_error(serverssl, rets);
}
if (!servererr && rets <= 0
&& err != SSL_ERROR_WANT_READ
&& err != SSL_ERROR_WANT_X509_LOOKUP) {
TEST_info("SSL_accept() failed %d, %d", rets, err);
if (want != SSL_ERROR_SSL)
TEST_openssl_errors();
servererr = 1;
}
if (want != SSL_ERROR_NONE && err == want)
return 0;
if (clienterr && servererr)
return 0;
if (isdtls && read) {
unsigned char buf[20];
/* Trigger any retransmits that may be appropriate */
if (rets > 0 && retc <= 0) {
if (SSL_read(serverssl, buf, sizeof(buf)) > 0) {
/* We don't expect this to succeed! */
TEST_info("Unexpected SSL_read() success!");
return 0;
}
}
if (retc > 0 && rets <= 0) {
if (SSL_read(clientssl, buf, sizeof(buf)) > 0) {
/* We don't expect this to succeed! */
TEST_info("Unexpected SSL_read() success!");
return 0;
}
}
}
if (++abortctr == MAXLOOPS) {
TEST_info("No progress made");
return 0;
}
if (isdtls && abortctr <= 50 && (abortctr % 10) == 0) {
/*
* It looks like we're just spinning. Pause for a short period to
* give the DTLS timer a chance to do something. We only do this for
* the first few times to prevent hangs.
*/
ossl_sleep(50);
}
} while (retc <=0 || rets <= 0);
return 1;
}
/*
* Create an SSL connection including any post handshake NewSessionTicket
* messages.
*/
int create_ssl_connection(SSL *serverssl, SSL *clientssl, int want)
{
int i;
unsigned char buf;
size_t readbytes;
if (!create_bare_ssl_connection(serverssl, clientssl, want, 1))
return 0;
/*
* We attempt to read some data on the client side which we expect to fail.
* This will ensure we have received the NewSessionTicket in TLSv1.3 where
* appropriate. We do this twice because there are 2 NewSessionTickets.
*/
for (i = 0; i < 2; i++) {
if (SSL_read_ex(clientssl, &buf, sizeof(buf), &readbytes) > 0) {
if (!TEST_ulong_eq(readbytes, 0))
return 0;
} else if (!TEST_int_eq(SSL_get_error(clientssl, 0),
SSL_ERROR_WANT_READ)) {
return 0;
}
}
return 1;
}
void shutdown_ssl_connection(SSL *serverssl, SSL *clientssl)
{
SSL_shutdown(clientssl);
SSL_shutdown(serverssl);
SSL_free(serverssl);
SSL_free(clientssl);
}
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