diff options
Diffstat (limited to 'test/helpers/ssltestlib.c')
| -rw-r--r-- | test/helpers/ssltestlib.c | 1042 |
1 files changed, 1042 insertions, 0 deletions
diff --git a/test/helpers/ssltestlib.c b/test/helpers/ssltestlib.c new file mode 100644 index 0000000000..2366c3db4d --- /dev/null +++ b/test/helpers/ssltestlib.c @@ -0,0 +1,1042 @@ +/* + * 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) + 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 ((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 (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; + } + + *sctx = serverctx; + if (cctx != NULL) + *cctx = clientctx; + return 1; + + err: + if (*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); +} |