5639 lines
157 KiB
C
5639 lines
157 KiB
C
/*
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* Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
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* Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
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* Copyright 2005 Nokia. All rights reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <stdio.h>
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#include "ssl_local.h"
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#include <openssl/objects.h>
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#include <openssl/x509v3.h>
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#include <openssl/rand.h>
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#include <openssl/rand_drbg.h>
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#include <openssl/ocsp.h>
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#include <openssl/dh.h>
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#include <openssl/engine.h>
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#include <openssl/async.h>
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#include <openssl/ct.h>
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#include "internal/cryptlib.h"
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#include "internal/refcount.h"
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const char SSL_version_str[] = OPENSSL_VERSION_TEXT;
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static int ssl_undefined_function_1(SSL *ssl, SSL3_RECORD *r, size_t s, int t)
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{
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(void)r;
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(void)s;
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(void)t;
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return ssl_undefined_function(ssl);
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}
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static int ssl_undefined_function_2(SSL *ssl, SSL3_RECORD *r, unsigned char *s,
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int t)
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{
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(void)r;
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(void)s;
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(void)t;
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return ssl_undefined_function(ssl);
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}
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static int ssl_undefined_function_3(SSL *ssl, unsigned char *r,
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unsigned char *s, size_t t, size_t *u)
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{
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(void)r;
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(void)s;
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(void)t;
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(void)u;
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return ssl_undefined_function(ssl);
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}
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static int ssl_undefined_function_4(SSL *ssl, int r)
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{
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(void)r;
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return ssl_undefined_function(ssl);
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}
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static size_t ssl_undefined_function_5(SSL *ssl, const char *r, size_t s,
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unsigned char *t)
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{
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(void)r;
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(void)s;
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(void)t;
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return ssl_undefined_function(ssl);
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}
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static int ssl_undefined_function_6(int r)
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{
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(void)r;
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return ssl_undefined_function(NULL);
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}
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static int ssl_undefined_function_7(SSL *ssl, unsigned char *r, size_t s,
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const char *t, size_t u,
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const unsigned char *v, size_t w, int x)
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{
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(void)r;
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(void)s;
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(void)t;
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(void)u;
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(void)v;
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(void)w;
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(void)x;
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return ssl_undefined_function(ssl);
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}
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SSL3_ENC_METHOD ssl3_undef_enc_method = {
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ssl_undefined_function_1,
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ssl_undefined_function_2,
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ssl_undefined_function,
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ssl_undefined_function_3,
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ssl_undefined_function_4,
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ssl_undefined_function_5,
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NULL, /* client_finished_label */
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0, /* client_finished_label_len */
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NULL, /* server_finished_label */
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0, /* server_finished_label_len */
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ssl_undefined_function_6,
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ssl_undefined_function_7,
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};
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struct ssl_async_args {
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SSL *s;
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void *buf;
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size_t num;
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enum { READFUNC, WRITEFUNC, OTHERFUNC } type;
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union {
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int (*func_read) (SSL *, void *, size_t, size_t *);
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int (*func_write) (SSL *, const void *, size_t, size_t *);
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int (*func_other) (SSL *);
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} f;
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};
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static const struct {
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uint8_t mtype;
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uint8_t ord;
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int nid;
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} dane_mds[] = {
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{
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DANETLS_MATCHING_FULL, 0, NID_undef
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},
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{
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DANETLS_MATCHING_2256, 1, NID_sha256
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},
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{
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DANETLS_MATCHING_2512, 2, NID_sha512
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},
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};
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static int dane_ctx_enable(struct dane_ctx_st *dctx)
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{
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const EVP_MD **mdevp;
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uint8_t *mdord;
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uint8_t mdmax = DANETLS_MATCHING_LAST;
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int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */
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size_t i;
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if (dctx->mdevp != NULL)
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return 1;
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mdevp = OPENSSL_zalloc(n * sizeof(*mdevp));
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mdord = OPENSSL_zalloc(n * sizeof(*mdord));
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if (mdord == NULL || mdevp == NULL) {
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OPENSSL_free(mdord);
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OPENSSL_free(mdevp);
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SSLerr(SSL_F_DANE_CTX_ENABLE, ERR_R_MALLOC_FAILURE);
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return 0;
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}
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/* Install default entries */
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for (i = 0; i < OSSL_NELEM(dane_mds); ++i) {
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const EVP_MD *md;
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if (dane_mds[i].nid == NID_undef ||
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(md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL)
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continue;
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mdevp[dane_mds[i].mtype] = md;
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mdord[dane_mds[i].mtype] = dane_mds[i].ord;
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}
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dctx->mdevp = mdevp;
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dctx->mdord = mdord;
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dctx->mdmax = mdmax;
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return 1;
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}
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static void dane_ctx_final(struct dane_ctx_st *dctx)
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{
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OPENSSL_free(dctx->mdevp);
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dctx->mdevp = NULL;
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OPENSSL_free(dctx->mdord);
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dctx->mdord = NULL;
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dctx->mdmax = 0;
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}
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static void tlsa_free(danetls_record *t)
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{
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if (t == NULL)
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return;
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OPENSSL_free(t->data);
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EVP_PKEY_free(t->spki);
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OPENSSL_free(t);
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}
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static void dane_final(SSL_DANE *dane)
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{
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sk_danetls_record_pop_free(dane->trecs, tlsa_free);
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dane->trecs = NULL;
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sk_X509_pop_free(dane->certs, X509_free);
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dane->certs = NULL;
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X509_free(dane->mcert);
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dane->mcert = NULL;
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dane->mtlsa = NULL;
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dane->mdpth = -1;
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dane->pdpth = -1;
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}
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/*
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* dane_copy - Copy dane configuration, sans verification state.
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*/
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static int ssl_dane_dup(SSL *to, SSL *from)
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{
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int num;
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int i;
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if (!DANETLS_ENABLED(&from->dane))
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return 1;
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num = sk_danetls_record_num(from->dane.trecs);
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dane_final(&to->dane);
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to->dane.flags = from->dane.flags;
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to->dane.dctx = &to->ctx->dane;
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to->dane.trecs = sk_danetls_record_new_reserve(NULL, num);
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if (to->dane.trecs == NULL) {
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SSLerr(SSL_F_SSL_DANE_DUP, ERR_R_MALLOC_FAILURE);
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return 0;
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}
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for (i = 0; i < num; ++i) {
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danetls_record *t = sk_danetls_record_value(from->dane.trecs, i);
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if (SSL_dane_tlsa_add(to, t->usage, t->selector, t->mtype,
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t->data, t->dlen) <= 0)
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return 0;
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}
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return 1;
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}
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static int dane_mtype_set(struct dane_ctx_st *dctx,
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const EVP_MD *md, uint8_t mtype, uint8_t ord)
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{
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int i;
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if (mtype == DANETLS_MATCHING_FULL && md != NULL) {
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SSLerr(SSL_F_DANE_MTYPE_SET, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL);
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return 0;
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}
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if (mtype > dctx->mdmax) {
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const EVP_MD **mdevp;
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uint8_t *mdord;
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int n = ((int)mtype) + 1;
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mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp));
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if (mdevp == NULL) {
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SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE);
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return -1;
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}
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dctx->mdevp = mdevp;
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mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord));
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if (mdord == NULL) {
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SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE);
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return -1;
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}
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dctx->mdord = mdord;
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/* Zero-fill any gaps */
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for (i = dctx->mdmax + 1; i < mtype; ++i) {
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mdevp[i] = NULL;
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mdord[i] = 0;
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}
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dctx->mdmax = mtype;
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}
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dctx->mdevp[mtype] = md;
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/* Coerce ordinal of disabled matching types to 0 */
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dctx->mdord[mtype] = (md == NULL) ? 0 : ord;
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return 1;
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}
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static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype)
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{
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if (mtype > dane->dctx->mdmax)
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return NULL;
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return dane->dctx->mdevp[mtype];
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}
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static int dane_tlsa_add(SSL_DANE *dane,
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uint8_t usage,
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uint8_t selector,
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uint8_t mtype, unsigned const char *data, size_t dlen)
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{
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danetls_record *t;
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const EVP_MD *md = NULL;
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int ilen = (int)dlen;
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int i;
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int num;
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if (dane->trecs == NULL) {
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SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_NOT_ENABLED);
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return -1;
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}
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if (ilen < 0 || dlen != (size_t)ilen) {
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SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DATA_LENGTH);
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return 0;
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}
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if (usage > DANETLS_USAGE_LAST) {
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SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE);
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return 0;
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}
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if (selector > DANETLS_SELECTOR_LAST) {
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SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_SELECTOR);
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return 0;
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}
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if (mtype != DANETLS_MATCHING_FULL) {
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md = tlsa_md_get(dane, mtype);
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if (md == NULL) {
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SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE);
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return 0;
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}
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}
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if (md != NULL && dlen != (size_t)EVP_MD_size(md)) {
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SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH);
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return 0;
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}
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if (!data) {
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SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_NULL_DATA);
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return 0;
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}
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if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL) {
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SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
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return -1;
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}
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t->usage = usage;
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t->selector = selector;
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t->mtype = mtype;
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t->data = OPENSSL_malloc(dlen);
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if (t->data == NULL) {
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tlsa_free(t);
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SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
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return -1;
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}
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memcpy(t->data, data, dlen);
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t->dlen = dlen;
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/* Validate and cache full certificate or public key */
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if (mtype == DANETLS_MATCHING_FULL) {
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const unsigned char *p = data;
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X509 *cert = NULL;
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EVP_PKEY *pkey = NULL;
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switch (selector) {
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case DANETLS_SELECTOR_CERT:
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if (!d2i_X509(&cert, &p, ilen) || p < data ||
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dlen != (size_t)(p - data)) {
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tlsa_free(t);
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SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
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return 0;
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}
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if (X509_get0_pubkey(cert) == NULL) {
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tlsa_free(t);
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SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
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return 0;
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}
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if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) {
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X509_free(cert);
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break;
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}
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/*
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* For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
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* records that contain full certificates of trust-anchors that are
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* not present in the wire chain. For usage PKIX-TA(0), we augment
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* the chain with untrusted Full(0) certificates from DNS, in case
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* they are missing from the chain.
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*/
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if ((dane->certs == NULL &&
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(dane->certs = sk_X509_new_null()) == NULL) ||
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!sk_X509_push(dane->certs, cert)) {
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SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
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X509_free(cert);
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tlsa_free(t);
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return -1;
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}
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break;
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case DANETLS_SELECTOR_SPKI:
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if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data ||
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dlen != (size_t)(p - data)) {
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tlsa_free(t);
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SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY);
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return 0;
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}
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/*
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* For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
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* records that contain full bare keys of trust-anchors that are
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* not present in the wire chain.
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*/
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if (usage == DANETLS_USAGE_DANE_TA)
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t->spki = pkey;
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else
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EVP_PKEY_free(pkey);
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break;
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}
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}
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/*-
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* Find the right insertion point for the new record.
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*
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* See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
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* they can be processed first, as they require no chain building, and no
|
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* expiration or hostname checks. Because DANE-EE(3) is numerically
|
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* largest, this is accomplished via descending sort by "usage".
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*
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* We also sort in descending order by matching ordinal to simplify
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* the implementation of digest agility in the verification code.
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*
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* The choice of order for the selector is not significant, so we
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* use the same descending order for consistency.
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*/
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num = sk_danetls_record_num(dane->trecs);
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for (i = 0; i < num; ++i) {
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danetls_record *rec = sk_danetls_record_value(dane->trecs, i);
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if (rec->usage > usage)
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continue;
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if (rec->usage < usage)
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break;
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if (rec->selector > selector)
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continue;
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if (rec->selector < selector)
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break;
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if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype])
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continue;
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break;
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}
|
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|
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if (!sk_danetls_record_insert(dane->trecs, t, i)) {
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tlsa_free(t);
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SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
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return -1;
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}
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dane->umask |= DANETLS_USAGE_BIT(usage);
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|
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return 1;
|
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}
|
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|
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/*
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* Return 0 if there is only one version configured and it was disabled
|
|
* at configure time. Return 1 otherwise.
|
|
*/
|
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static int ssl_check_allowed_versions(int min_version, int max_version)
|
|
{
|
|
int minisdtls = 0, maxisdtls = 0;
|
|
|
|
/* Figure out if we're doing DTLS versions or TLS versions */
|
|
if (min_version == DTLS1_BAD_VER
|
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|| min_version >> 8 == DTLS1_VERSION_MAJOR)
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minisdtls = 1;
|
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if (max_version == DTLS1_BAD_VER
|
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|| max_version >> 8 == DTLS1_VERSION_MAJOR)
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maxisdtls = 1;
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/* A wildcard version of 0 could be DTLS or TLS. */
|
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if ((minisdtls && !maxisdtls && max_version != 0)
|
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|| (maxisdtls && !minisdtls && min_version != 0)) {
|
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/* Mixing DTLS and TLS versions will lead to sadness; deny it. */
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return 0;
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}
|
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|
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if (minisdtls || maxisdtls) {
|
|
/* Do DTLS version checks. */
|
|
if (min_version == 0)
|
|
/* Ignore DTLS1_BAD_VER */
|
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min_version = DTLS1_VERSION;
|
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if (max_version == 0)
|
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max_version = DTLS1_2_VERSION;
|
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#ifdef OPENSSL_NO_DTLS1_2
|
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if (max_version == DTLS1_2_VERSION)
|
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max_version = DTLS1_VERSION;
|
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#endif
|
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#ifdef OPENSSL_NO_DTLS1
|
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if (min_version == DTLS1_VERSION)
|
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min_version = DTLS1_2_VERSION;
|
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#endif
|
|
/* Done massaging versions; do the check. */
|
|
if (0
|
|
#ifdef OPENSSL_NO_DTLS1
|
|
|| (DTLS_VERSION_GE(min_version, DTLS1_VERSION)
|
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&& DTLS_VERSION_GE(DTLS1_VERSION, max_version))
|
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#endif
|
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#ifdef OPENSSL_NO_DTLS1_2
|
|
|| (DTLS_VERSION_GE(min_version, DTLS1_2_VERSION)
|
|
&& DTLS_VERSION_GE(DTLS1_2_VERSION, max_version))
|
|
#endif
|
|
)
|
|
return 0;
|
|
} else {
|
|
/* Regular TLS version checks. */
|
|
if (min_version == 0)
|
|
min_version = SSL3_VERSION;
|
|
if (max_version == 0)
|
|
max_version = TLS1_3_VERSION;
|
|
#ifdef OPENSSL_NO_TLS1_3
|
|
if (max_version == TLS1_3_VERSION)
|
|
max_version = TLS1_2_VERSION;
|
|
#endif
|
|
#ifdef OPENSSL_NO_TLS1_2
|
|
if (max_version == TLS1_2_VERSION)
|
|
max_version = TLS1_1_VERSION;
|
|
#endif
|
|
#ifdef OPENSSL_NO_TLS1_1
|
|
if (max_version == TLS1_1_VERSION)
|
|
max_version = TLS1_VERSION;
|
|
#endif
|
|
#ifdef OPENSSL_NO_TLS1
|
|
if (max_version == TLS1_VERSION)
|
|
max_version = SSL3_VERSION;
|
|
#endif
|
|
#ifdef OPENSSL_NO_SSL3
|
|
if (min_version == SSL3_VERSION)
|
|
min_version = TLS1_VERSION;
|
|
#endif
|
|
#ifdef OPENSSL_NO_TLS1
|
|
if (min_version == TLS1_VERSION)
|
|
min_version = TLS1_1_VERSION;
|
|
#endif
|
|
#ifdef OPENSSL_NO_TLS1_1
|
|
if (min_version == TLS1_1_VERSION)
|
|
min_version = TLS1_2_VERSION;
|
|
#endif
|
|
#ifdef OPENSSL_NO_TLS1_2
|
|
if (min_version == TLS1_2_VERSION)
|
|
min_version = TLS1_3_VERSION;
|
|
#endif
|
|
/* Done massaging versions; do the check. */
|
|
if (0
|
|
#ifdef OPENSSL_NO_SSL3
|
|
|| (min_version <= SSL3_VERSION && SSL3_VERSION <= max_version)
|
|
#endif
|
|
#ifdef OPENSSL_NO_TLS1
|
|
|| (min_version <= TLS1_VERSION && TLS1_VERSION <= max_version)
|
|
#endif
|
|
#ifdef OPENSSL_NO_TLS1_1
|
|
|| (min_version <= TLS1_1_VERSION && TLS1_1_VERSION <= max_version)
|
|
#endif
|
|
#ifdef OPENSSL_NO_TLS1_2
|
|
|| (min_version <= TLS1_2_VERSION && TLS1_2_VERSION <= max_version)
|
|
#endif
|
|
#ifdef OPENSSL_NO_TLS1_3
|
|
|| (min_version <= TLS1_3_VERSION && TLS1_3_VERSION <= max_version)
|
|
#endif
|
|
)
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static void clear_ciphers(SSL *s)
|
|
{
|
|
/* clear the current cipher */
|
|
ssl_clear_cipher_ctx(s);
|
|
ssl_clear_hash_ctx(&s->read_hash);
|
|
ssl_clear_hash_ctx(&s->write_hash);
|
|
}
|
|
|
|
int SSL_clear(SSL *s)
|
|
{
|
|
if (s->method == NULL) {
|
|
SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED);
|
|
return 0;
|
|
}
|
|
|
|
if (ssl_clear_bad_session(s)) {
|
|
SSL_SESSION_free(s->session);
|
|
s->session = NULL;
|
|
}
|
|
SSL_SESSION_free(s->psksession);
|
|
s->psksession = NULL;
|
|
OPENSSL_free(s->psksession_id);
|
|
s->psksession_id = NULL;
|
|
s->psksession_id_len = 0;
|
|
s->hello_retry_request = 0;
|
|
s->sent_tickets = 0;
|
|
|
|
s->error = 0;
|
|
s->hit = 0;
|
|
s->shutdown = 0;
|
|
|
|
if (s->renegotiate) {
|
|
SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR);
|
|
return 0;
|
|
}
|
|
|
|
ossl_statem_clear(s);
|
|
|
|
s->version = s->method->version;
|
|
s->client_version = s->version;
|
|
s->rwstate = SSL_NOTHING;
|
|
|
|
BUF_MEM_free(s->init_buf);
|
|
s->init_buf = NULL;
|
|
clear_ciphers(s);
|
|
s->first_packet = 0;
|
|
|
|
s->key_update = SSL_KEY_UPDATE_NONE;
|
|
|
|
EVP_MD_CTX_free(s->pha_dgst);
|
|
s->pha_dgst = NULL;
|
|
|
|
/* Reset DANE verification result state */
|
|
s->dane.mdpth = -1;
|
|
s->dane.pdpth = -1;
|
|
X509_free(s->dane.mcert);
|
|
s->dane.mcert = NULL;
|
|
s->dane.mtlsa = NULL;
|
|
|
|
/* Clear the verification result peername */
|
|
X509_VERIFY_PARAM_move_peername(s->param, NULL);
|
|
|
|
/* Clear any shared connection state */
|
|
OPENSSL_free(s->shared_sigalgs);
|
|
s->shared_sigalgs = NULL;
|
|
s->shared_sigalgslen = 0;
|
|
|
|
/*
|
|
* Check to see if we were changed into a different method, if so, revert
|
|
* back.
|
|
*/
|
|
if (s->method != s->ctx->method) {
|
|
s->method->ssl_free(s);
|
|
s->method = s->ctx->method;
|
|
if (!s->method->ssl_new(s))
|
|
return 0;
|
|
} else {
|
|
if (!s->method->ssl_clear(s))
|
|
return 0;
|
|
}
|
|
|
|
RECORD_LAYER_clear(&s->rlayer);
|
|
|
|
return 1;
|
|
}
|
|
|
|
/** Used to change an SSL_CTXs default SSL method type */
|
|
int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
|
|
{
|
|
STACK_OF(SSL_CIPHER) *sk;
|
|
|
|
ctx->method = meth;
|
|
|
|
if (!SSL_CTX_set_ciphersuites(ctx, TLS_DEFAULT_CIPHERSUITES)) {
|
|
SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
|
|
return 0;
|
|
}
|
|
sk = ssl_create_cipher_list(ctx->method,
|
|
ctx->tls13_ciphersuites,
|
|
&(ctx->cipher_list),
|
|
&(ctx->cipher_list_by_id),
|
|
SSL_DEFAULT_CIPHER_LIST, ctx->cert);
|
|
if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
|
|
SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
SSL *SSL_new(SSL_CTX *ctx)
|
|
{
|
|
SSL *s;
|
|
|
|
if (ctx == NULL) {
|
|
SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);
|
|
return NULL;
|
|
}
|
|
if (ctx->method == NULL) {
|
|
SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
|
|
return NULL;
|
|
}
|
|
|
|
s = OPENSSL_zalloc(sizeof(*s));
|
|
if (s == NULL)
|
|
goto err;
|
|
|
|
s->references = 1;
|
|
s->lock = CRYPTO_THREAD_lock_new();
|
|
if (s->lock == NULL) {
|
|
OPENSSL_free(s);
|
|
s = NULL;
|
|
goto err;
|
|
}
|
|
|
|
RECORD_LAYER_init(&s->rlayer, s);
|
|
|
|
s->options = ctx->options;
|
|
s->dane.flags = ctx->dane.flags;
|
|
s->min_proto_version = ctx->min_proto_version;
|
|
s->max_proto_version = ctx->max_proto_version;
|
|
s->mode = ctx->mode;
|
|
s->max_cert_list = ctx->max_cert_list;
|
|
s->max_early_data = ctx->max_early_data;
|
|
s->recv_max_early_data = ctx->recv_max_early_data;
|
|
s->num_tickets = ctx->num_tickets;
|
|
s->pha_enabled = ctx->pha_enabled;
|
|
|
|
/* Shallow copy of the ciphersuites stack */
|
|
s->tls13_ciphersuites = sk_SSL_CIPHER_dup(ctx->tls13_ciphersuites);
|
|
if (s->tls13_ciphersuites == NULL)
|
|
goto err;
|
|
|
|
/*
|
|
* Earlier library versions used to copy the pointer to the CERT, not
|
|
* its contents; only when setting new parameters for the per-SSL
|
|
* copy, ssl_cert_new would be called (and the direct reference to
|
|
* the per-SSL_CTX settings would be lost, but those still were
|
|
* indirectly accessed for various purposes, and for that reason they
|
|
* used to be known as s->ctx->default_cert). Now we don't look at the
|
|
* SSL_CTX's CERT after having duplicated it once.
|
|
*/
|
|
s->cert = ssl_cert_dup(ctx->cert);
|
|
if (s->cert == NULL)
|
|
goto err;
|
|
|
|
RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
|
|
s->msg_callback = ctx->msg_callback;
|
|
s->msg_callback_arg = ctx->msg_callback_arg;
|
|
s->verify_mode = ctx->verify_mode;
|
|
s->not_resumable_session_cb = ctx->not_resumable_session_cb;
|
|
s->record_padding_cb = ctx->record_padding_cb;
|
|
s->record_padding_arg = ctx->record_padding_arg;
|
|
s->block_padding = ctx->block_padding;
|
|
s->sid_ctx_length = ctx->sid_ctx_length;
|
|
if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx)))
|
|
goto err;
|
|
memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
|
|
s->verify_callback = ctx->default_verify_callback;
|
|
s->generate_session_id = ctx->generate_session_id;
|
|
|
|
s->param = X509_VERIFY_PARAM_new();
|
|
if (s->param == NULL)
|
|
goto err;
|
|
X509_VERIFY_PARAM_inherit(s->param, ctx->param);
|
|
s->quiet_shutdown = ctx->quiet_shutdown;
|
|
|
|
s->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode;
|
|
s->max_send_fragment = ctx->max_send_fragment;
|
|
s->split_send_fragment = ctx->split_send_fragment;
|
|
s->max_pipelines = ctx->max_pipelines;
|
|
if (s->max_pipelines > 1)
|
|
RECORD_LAYER_set_read_ahead(&s->rlayer, 1);
|
|
if (ctx->default_read_buf_len > 0)
|
|
SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len);
|
|
|
|
SSL_CTX_up_ref(ctx);
|
|
s->ctx = ctx;
|
|
s->ext.debug_cb = 0;
|
|
s->ext.debug_arg = NULL;
|
|
s->ext.ticket_expected = 0;
|
|
s->ext.status_type = ctx->ext.status_type;
|
|
s->ext.status_expected = 0;
|
|
s->ext.ocsp.ids = NULL;
|
|
s->ext.ocsp.exts = NULL;
|
|
s->ext.ocsp.resp = NULL;
|
|
s->ext.ocsp.resp_len = 0;
|
|
SSL_CTX_up_ref(ctx);
|
|
s->session_ctx = ctx;
|
|
#ifndef OPENSSL_NO_EC
|
|
if (ctx->ext.ecpointformats) {
|
|
s->ext.ecpointformats =
|
|
OPENSSL_memdup(ctx->ext.ecpointformats,
|
|
ctx->ext.ecpointformats_len);
|
|
if (!s->ext.ecpointformats)
|
|
goto err;
|
|
s->ext.ecpointformats_len =
|
|
ctx->ext.ecpointformats_len;
|
|
}
|
|
if (ctx->ext.supportedgroups) {
|
|
s->ext.supportedgroups =
|
|
OPENSSL_memdup(ctx->ext.supportedgroups,
|
|
ctx->ext.supportedgroups_len
|
|
* sizeof(*ctx->ext.supportedgroups));
|
|
if (!s->ext.supportedgroups)
|
|
goto err;
|
|
s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;
|
|
}
|
|
#endif
|
|
#ifndef OPENSSL_NO_NEXTPROTONEG
|
|
s->ext.npn = NULL;
|
|
#endif
|
|
|
|
if (s->ctx->ext.alpn) {
|
|
s->ext.alpn = OPENSSL_malloc(s->ctx->ext.alpn_len);
|
|
if (s->ext.alpn == NULL)
|
|
goto err;
|
|
memcpy(s->ext.alpn, s->ctx->ext.alpn, s->ctx->ext.alpn_len);
|
|
s->ext.alpn_len = s->ctx->ext.alpn_len;
|
|
}
|
|
|
|
s->verified_chain = NULL;
|
|
s->verify_result = X509_V_OK;
|
|
|
|
s->default_passwd_callback = ctx->default_passwd_callback;
|
|
s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
|
|
|
|
s->method = ctx->method;
|
|
|
|
s->key_update = SSL_KEY_UPDATE_NONE;
|
|
|
|
s->allow_early_data_cb = ctx->allow_early_data_cb;
|
|
s->allow_early_data_cb_data = ctx->allow_early_data_cb_data;
|
|
|
|
if (!s->method->ssl_new(s))
|
|
goto err;
|
|
|
|
s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
|
|
|
|
if (!SSL_clear(s))
|
|
goto err;
|
|
|
|
if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data))
|
|
goto err;
|
|
|
|
#ifndef OPENSSL_NO_PSK
|
|
s->psk_client_callback = ctx->psk_client_callback;
|
|
s->psk_server_callback = ctx->psk_server_callback;
|
|
#endif
|
|
s->psk_find_session_cb = ctx->psk_find_session_cb;
|
|
s->psk_use_session_cb = ctx->psk_use_session_cb;
|
|
|
|
s->job = NULL;
|
|
|
|
#ifndef OPENSSL_NO_CT
|
|
if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback,
|
|
ctx->ct_validation_callback_arg))
|
|
goto err;
|
|
#endif
|
|
|
|
return s;
|
|
err:
|
|
SSL_free(s);
|
|
SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
|
|
return NULL;
|
|
}
|
|
|
|
int SSL_is_dtls(const SSL *s)
|
|
{
|
|
return SSL_IS_DTLS(s) ? 1 : 0;
|
|
}
|
|
|
|
int SSL_up_ref(SSL *s)
|
|
{
|
|
int i;
|
|
|
|
if (CRYPTO_UP_REF(&s->references, &i, s->lock) <= 0)
|
|
return 0;
|
|
|
|
REF_PRINT_COUNT("SSL", s);
|
|
REF_ASSERT_ISNT(i < 2);
|
|
return ((i > 1) ? 1 : 0);
|
|
}
|
|
|
|
int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
|
|
unsigned int sid_ctx_len)
|
|
{
|
|
if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
|
|
SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,
|
|
SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
|
|
return 0;
|
|
}
|
|
ctx->sid_ctx_length = sid_ctx_len;
|
|
memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
|
|
|
|
return 1;
|
|
}
|
|
|
|
int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
|
|
unsigned int sid_ctx_len)
|
|
{
|
|
if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
|
|
SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,
|
|
SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
|
|
return 0;
|
|
}
|
|
ssl->sid_ctx_length = sid_ctx_len;
|
|
memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len);
|
|
|
|
return 1;
|
|
}
|
|
|
|
int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
|
|
{
|
|
CRYPTO_THREAD_write_lock(ctx->lock);
|
|
ctx->generate_session_id = cb;
|
|
CRYPTO_THREAD_unlock(ctx->lock);
|
|
return 1;
|
|
}
|
|
|
|
int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
|
|
{
|
|
CRYPTO_THREAD_write_lock(ssl->lock);
|
|
ssl->generate_session_id = cb;
|
|
CRYPTO_THREAD_unlock(ssl->lock);
|
|
return 1;
|
|
}
|
|
|
|
int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
|
|
unsigned int id_len)
|
|
{
|
|
/*
|
|
* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
|
|
* we can "construct" a session to give us the desired check - i.e. to
|
|
* find if there's a session in the hash table that would conflict with
|
|
* any new session built out of this id/id_len and the ssl_version in use
|
|
* by this SSL.
|
|
*/
|
|
SSL_SESSION r, *p;
|
|
|
|
if (id_len > sizeof(r.session_id))
|
|
return 0;
|
|
|
|
r.ssl_version = ssl->version;
|
|
r.session_id_length = id_len;
|
|
memcpy(r.session_id, id, id_len);
|
|
|
|
CRYPTO_THREAD_read_lock(ssl->session_ctx->lock);
|
|
p = lh_SSL_SESSION_retrieve(ssl->session_ctx->sessions, &r);
|
|
CRYPTO_THREAD_unlock(ssl->session_ctx->lock);
|
|
return (p != NULL);
|
|
}
|
|
|
|
int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
|
|
{
|
|
return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
|
|
}
|
|
|
|
int SSL_set_purpose(SSL *s, int purpose)
|
|
{
|
|
return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
|
|
}
|
|
|
|
int SSL_CTX_set_trust(SSL_CTX *s, int trust)
|
|
{
|
|
return X509_VERIFY_PARAM_set_trust(s->param, trust);
|
|
}
|
|
|
|
int SSL_set_trust(SSL *s, int trust)
|
|
{
|
|
return X509_VERIFY_PARAM_set_trust(s->param, trust);
|
|
}
|
|
|
|
int SSL_set1_host(SSL *s, const char *hostname)
|
|
{
|
|
return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0);
|
|
}
|
|
|
|
int SSL_add1_host(SSL *s, const char *hostname)
|
|
{
|
|
return X509_VERIFY_PARAM_add1_host(s->param, hostname, 0);
|
|
}
|
|
|
|
void SSL_set_hostflags(SSL *s, unsigned int flags)
|
|
{
|
|
X509_VERIFY_PARAM_set_hostflags(s->param, flags);
|
|
}
|
|
|
|
const char *SSL_get0_peername(SSL *s)
|
|
{
|
|
return X509_VERIFY_PARAM_get0_peername(s->param);
|
|
}
|
|
|
|
int SSL_CTX_dane_enable(SSL_CTX *ctx)
|
|
{
|
|
return dane_ctx_enable(&ctx->dane);
|
|
}
|
|
|
|
unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags)
|
|
{
|
|
unsigned long orig = ctx->dane.flags;
|
|
|
|
ctx->dane.flags |= flags;
|
|
return orig;
|
|
}
|
|
|
|
unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags)
|
|
{
|
|
unsigned long orig = ctx->dane.flags;
|
|
|
|
ctx->dane.flags &= ~flags;
|
|
return orig;
|
|
}
|
|
|
|
int SSL_dane_enable(SSL *s, const char *basedomain)
|
|
{
|
|
SSL_DANE *dane = &s->dane;
|
|
|
|
if (s->ctx->dane.mdmax == 0) {
|
|
SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_CONTEXT_NOT_DANE_ENABLED);
|
|
return 0;
|
|
}
|
|
if (dane->trecs != NULL) {
|
|
SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_DANE_ALREADY_ENABLED);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Default SNI name. This rejects empty names, while set1_host below
|
|
* accepts them and disables host name checks. To avoid side-effects with
|
|
* invalid input, set the SNI name first.
|
|
*/
|
|
if (s->ext.hostname == NULL) {
|
|
if (!SSL_set_tlsext_host_name(s, basedomain)) {
|
|
SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
/* Primary RFC6125 reference identifier */
|
|
if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) {
|
|
SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
|
|
return -1;
|
|
}
|
|
|
|
dane->mdpth = -1;
|
|
dane->pdpth = -1;
|
|
dane->dctx = &s->ctx->dane;
|
|
dane->trecs = sk_danetls_record_new_null();
|
|
|
|
if (dane->trecs == NULL) {
|
|
SSLerr(SSL_F_SSL_DANE_ENABLE, ERR_R_MALLOC_FAILURE);
|
|
return -1;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags)
|
|
{
|
|
unsigned long orig = ssl->dane.flags;
|
|
|
|
ssl->dane.flags |= flags;
|
|
return orig;
|
|
}
|
|
|
|
unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags)
|
|
{
|
|
unsigned long orig = ssl->dane.flags;
|
|
|
|
ssl->dane.flags &= ~flags;
|
|
return orig;
|
|
}
|
|
|
|
int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
|
|
{
|
|
SSL_DANE *dane = &s->dane;
|
|
|
|
if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK)
|
|
return -1;
|
|
if (dane->mtlsa) {
|
|
if (mcert)
|
|
*mcert = dane->mcert;
|
|
if (mspki)
|
|
*mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
|
|
}
|
|
return dane->mdpth;
|
|
}
|
|
|
|
int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
|
|
uint8_t *mtype, unsigned const char **data, size_t *dlen)
|
|
{
|
|
SSL_DANE *dane = &s->dane;
|
|
|
|
if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK)
|
|
return -1;
|
|
if (dane->mtlsa) {
|
|
if (usage)
|
|
*usage = dane->mtlsa->usage;
|
|
if (selector)
|
|
*selector = dane->mtlsa->selector;
|
|
if (mtype)
|
|
*mtype = dane->mtlsa->mtype;
|
|
if (data)
|
|
*data = dane->mtlsa->data;
|
|
if (dlen)
|
|
*dlen = dane->mtlsa->dlen;
|
|
}
|
|
return dane->mdpth;
|
|
}
|
|
|
|
SSL_DANE *SSL_get0_dane(SSL *s)
|
|
{
|
|
return &s->dane;
|
|
}
|
|
|
|
int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
|
|
uint8_t mtype, unsigned const char *data, size_t dlen)
|
|
{
|
|
return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen);
|
|
}
|
|
|
|
int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype,
|
|
uint8_t ord)
|
|
{
|
|
return dane_mtype_set(&ctx->dane, md, mtype, ord);
|
|
}
|
|
|
|
int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
|
|
{
|
|
return X509_VERIFY_PARAM_set1(ctx->param, vpm);
|
|
}
|
|
|
|
int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
|
|
{
|
|
return X509_VERIFY_PARAM_set1(ssl->param, vpm);
|
|
}
|
|
|
|
X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
|
|
{
|
|
return ctx->param;
|
|
}
|
|
|
|
X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
|
|
{
|
|
return ssl->param;
|
|
}
|
|
|
|
void SSL_certs_clear(SSL *s)
|
|
{
|
|
ssl_cert_clear_certs(s->cert);
|
|
}
|
|
|
|
void SSL_free(SSL *s)
|
|
{
|
|
int i;
|
|
|
|
if (s == NULL)
|
|
return;
|
|
CRYPTO_DOWN_REF(&s->references, &i, s->lock);
|
|
REF_PRINT_COUNT("SSL", s);
|
|
if (i > 0)
|
|
return;
|
|
REF_ASSERT_ISNT(i < 0);
|
|
|
|
X509_VERIFY_PARAM_free(s->param);
|
|
dane_final(&s->dane);
|
|
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
|
|
|
|
/* Ignore return value */
|
|
ssl_free_wbio_buffer(s);
|
|
|
|
BIO_free_all(s->wbio);
|
|
BIO_free_all(s->rbio);
|
|
|
|
BUF_MEM_free(s->init_buf);
|
|
|
|
/* add extra stuff */
|
|
sk_SSL_CIPHER_free(s->cipher_list);
|
|
sk_SSL_CIPHER_free(s->cipher_list_by_id);
|
|
sk_SSL_CIPHER_free(s->tls13_ciphersuites);
|
|
sk_SSL_CIPHER_free(s->peer_ciphers);
|
|
|
|
/* Make the next call work :-) */
|
|
if (s->session != NULL) {
|
|
ssl_clear_bad_session(s);
|
|
SSL_SESSION_free(s->session);
|
|
}
|
|
SSL_SESSION_free(s->psksession);
|
|
OPENSSL_free(s->psksession_id);
|
|
|
|
clear_ciphers(s);
|
|
|
|
ssl_cert_free(s->cert);
|
|
OPENSSL_free(s->shared_sigalgs);
|
|
/* Free up if allocated */
|
|
|
|
OPENSSL_free(s->ext.hostname);
|
|
SSL_CTX_free(s->session_ctx);
|
|
#ifndef OPENSSL_NO_EC
|
|
OPENSSL_free(s->ext.ecpointformats);
|
|
OPENSSL_free(s->ext.peer_ecpointformats);
|
|
OPENSSL_free(s->ext.supportedgroups);
|
|
OPENSSL_free(s->ext.peer_supportedgroups);
|
|
#endif /* OPENSSL_NO_EC */
|
|
sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);
|
|
#ifndef OPENSSL_NO_OCSP
|
|
sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);
|
|
#endif
|
|
#ifndef OPENSSL_NO_CT
|
|
SCT_LIST_free(s->scts);
|
|
OPENSSL_free(s->ext.scts);
|
|
#endif
|
|
OPENSSL_free(s->ext.ocsp.resp);
|
|
OPENSSL_free(s->ext.alpn);
|
|
OPENSSL_free(s->ext.tls13_cookie);
|
|
if (s->clienthello != NULL)
|
|
OPENSSL_free(s->clienthello->pre_proc_exts);
|
|
OPENSSL_free(s->clienthello);
|
|
OPENSSL_free(s->pha_context);
|
|
EVP_MD_CTX_free(s->pha_dgst);
|
|
|
|
sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);
|
|
sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free);
|
|
|
|
sk_X509_pop_free(s->verified_chain, X509_free);
|
|
|
|
if (s->method != NULL)
|
|
s->method->ssl_free(s);
|
|
|
|
RECORD_LAYER_release(&s->rlayer);
|
|
|
|
SSL_CTX_free(s->ctx);
|
|
|
|
ASYNC_WAIT_CTX_free(s->waitctx);
|
|
|
|
#if !defined(OPENSSL_NO_NEXTPROTONEG)
|
|
OPENSSL_free(s->ext.npn);
|
|
#endif
|
|
|
|
#ifndef OPENSSL_NO_SRTP
|
|
sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
|
|
#endif
|
|
|
|
CRYPTO_THREAD_lock_free(s->lock);
|
|
|
|
OPENSSL_free(s);
|
|
}
|
|
|
|
void SSL_set0_rbio(SSL *s, BIO *rbio)
|
|
{
|
|
BIO_free_all(s->rbio);
|
|
s->rbio = rbio;
|
|
}
|
|
|
|
void SSL_set0_wbio(SSL *s, BIO *wbio)
|
|
{
|
|
/*
|
|
* If the output buffering BIO is still in place, remove it
|
|
*/
|
|
if (s->bbio != NULL)
|
|
s->wbio = BIO_pop(s->wbio);
|
|
|
|
BIO_free_all(s->wbio);
|
|
s->wbio = wbio;
|
|
|
|
/* Re-attach |bbio| to the new |wbio|. */
|
|
if (s->bbio != NULL)
|
|
s->wbio = BIO_push(s->bbio, s->wbio);
|
|
}
|
|
|
|
void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
|
|
{
|
|
/*
|
|
* For historical reasons, this function has many different cases in
|
|
* ownership handling.
|
|
*/
|
|
|
|
/* If nothing has changed, do nothing */
|
|
if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s))
|
|
return;
|
|
|
|
/*
|
|
* If the two arguments are equal then one fewer reference is granted by the
|
|
* caller than we want to take
|
|
*/
|
|
if (rbio != NULL && rbio == wbio)
|
|
BIO_up_ref(rbio);
|
|
|
|
/*
|
|
* If only the wbio is changed only adopt one reference.
|
|
*/
|
|
if (rbio == SSL_get_rbio(s)) {
|
|
SSL_set0_wbio(s, wbio);
|
|
return;
|
|
}
|
|
/*
|
|
* There is an asymmetry here for historical reasons. If only the rbio is
|
|
* changed AND the rbio and wbio were originally different, then we only
|
|
* adopt one reference.
|
|
*/
|
|
if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) {
|
|
SSL_set0_rbio(s, rbio);
|
|
return;
|
|
}
|
|
|
|
/* Otherwise, adopt both references. */
|
|
SSL_set0_rbio(s, rbio);
|
|
SSL_set0_wbio(s, wbio);
|
|
}
|
|
|
|
BIO *SSL_get_rbio(const SSL *s)
|
|
{
|
|
return s->rbio;
|
|
}
|
|
|
|
BIO *SSL_get_wbio(const SSL *s)
|
|
{
|
|
if (s->bbio != NULL) {
|
|
/*
|
|
* If |bbio| is active, the true caller-configured BIO is its
|
|
* |next_bio|.
|
|
*/
|
|
return BIO_next(s->bbio);
|
|
}
|
|
return s->wbio;
|
|
}
|
|
|
|
int SSL_get_fd(const SSL *s)
|
|
{
|
|
return SSL_get_rfd(s);
|
|
}
|
|
|
|
int SSL_get_rfd(const SSL *s)
|
|
{
|
|
int ret = -1;
|
|
BIO *b, *r;
|
|
|
|
b = SSL_get_rbio(s);
|
|
r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
|
|
if (r != NULL)
|
|
BIO_get_fd(r, &ret);
|
|
return ret;
|
|
}
|
|
|
|
int SSL_get_wfd(const SSL *s)
|
|
{
|
|
int ret = -1;
|
|
BIO *b, *r;
|
|
|
|
b = SSL_get_wbio(s);
|
|
r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
|
|
if (r != NULL)
|
|
BIO_get_fd(r, &ret);
|
|
return ret;
|
|
}
|
|
|
|
#ifndef OPENSSL_NO_SOCK
|
|
int SSL_set_fd(SSL *s, int fd)
|
|
{
|
|
int ret = 0;
|
|
BIO *bio = NULL;
|
|
|
|
bio = BIO_new(BIO_s_socket());
|
|
|
|
if (bio == NULL) {
|
|
SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
|
|
goto err;
|
|
}
|
|
BIO_set_fd(bio, fd, BIO_NOCLOSE);
|
|
SSL_set_bio(s, bio, bio);
|
|
ret = 1;
|
|
err:
|
|
return ret;
|
|
}
|
|
|
|
int SSL_set_wfd(SSL *s, int fd)
|
|
{
|
|
BIO *rbio = SSL_get_rbio(s);
|
|
|
|
if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET
|
|
|| (int)BIO_get_fd(rbio, NULL) != fd) {
|
|
BIO *bio = BIO_new(BIO_s_socket());
|
|
|
|
if (bio == NULL) {
|
|
SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB);
|
|
return 0;
|
|
}
|
|
BIO_set_fd(bio, fd, BIO_NOCLOSE);
|
|
SSL_set0_wbio(s, bio);
|
|
} else {
|
|
BIO_up_ref(rbio);
|
|
SSL_set0_wbio(s, rbio);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
int SSL_set_rfd(SSL *s, int fd)
|
|
{
|
|
BIO *wbio = SSL_get_wbio(s);
|
|
|
|
if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET
|
|
|| ((int)BIO_get_fd(wbio, NULL) != fd)) {
|
|
BIO *bio = BIO_new(BIO_s_socket());
|
|
|
|
if (bio == NULL) {
|
|
SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB);
|
|
return 0;
|
|
}
|
|
BIO_set_fd(bio, fd, BIO_NOCLOSE);
|
|
SSL_set0_rbio(s, bio);
|
|
} else {
|
|
BIO_up_ref(wbio);
|
|
SSL_set0_rbio(s, wbio);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
/* return length of latest Finished message we sent, copy to 'buf' */
|
|
size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
|
|
{
|
|
size_t ret = 0;
|
|
|
|
if (s->s3 != NULL) {
|
|
ret = s->s3->tmp.finish_md_len;
|
|
if (count > ret)
|
|
count = ret;
|
|
memcpy(buf, s->s3->tmp.finish_md, count);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* return length of latest Finished message we expected, copy to 'buf' */
|
|
size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
|
|
{
|
|
size_t ret = 0;
|
|
|
|
if (s->s3 != NULL) {
|
|
ret = s->s3->tmp.peer_finish_md_len;
|
|
if (count > ret)
|
|
count = ret;
|
|
memcpy(buf, s->s3->tmp.peer_finish_md, count);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int SSL_get_verify_mode(const SSL *s)
|
|
{
|
|
return s->verify_mode;
|
|
}
|
|
|
|
int SSL_get_verify_depth(const SSL *s)
|
|
{
|
|
return X509_VERIFY_PARAM_get_depth(s->param);
|
|
}
|
|
|
|
int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
|
|
return s->verify_callback;
|
|
}
|
|
|
|
int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
|
|
{
|
|
return ctx->verify_mode;
|
|
}
|
|
|
|
int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
|
|
{
|
|
return X509_VERIFY_PARAM_get_depth(ctx->param);
|
|
}
|
|
|
|
int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
|
|
return ctx->default_verify_callback;
|
|
}
|
|
|
|
void SSL_set_verify(SSL *s, int mode,
|
|
int (*callback) (int ok, X509_STORE_CTX *ctx))
|
|
{
|
|
s->verify_mode = mode;
|
|
if (callback != NULL)
|
|
s->verify_callback = callback;
|
|
}
|
|
|
|
void SSL_set_verify_depth(SSL *s, int depth)
|
|
{
|
|
X509_VERIFY_PARAM_set_depth(s->param, depth);
|
|
}
|
|
|
|
void SSL_set_read_ahead(SSL *s, int yes)
|
|
{
|
|
RECORD_LAYER_set_read_ahead(&s->rlayer, yes);
|
|
}
|
|
|
|
int SSL_get_read_ahead(const SSL *s)
|
|
{
|
|
return RECORD_LAYER_get_read_ahead(&s->rlayer);
|
|
}
|
|
|
|
int SSL_pending(const SSL *s)
|
|
{
|
|
size_t pending = s->method->ssl_pending(s);
|
|
|
|
/*
|
|
* SSL_pending cannot work properly if read-ahead is enabled
|
|
* (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
|
|
* impossible to fix since SSL_pending cannot report errors that may be
|
|
* observed while scanning the new data. (Note that SSL_pending() is
|
|
* often used as a boolean value, so we'd better not return -1.)
|
|
*
|
|
* SSL_pending also cannot work properly if the value >INT_MAX. In that case
|
|
* we just return INT_MAX.
|
|
*/
|
|
return pending < INT_MAX ? (int)pending : INT_MAX;
|
|
}
|
|
|
|
int SSL_has_pending(const SSL *s)
|
|
{
|
|
/*
|
|
* Similar to SSL_pending() but returns a 1 to indicate that we have
|
|
* unprocessed data available or 0 otherwise (as opposed to the number of
|
|
* bytes available). Unlike SSL_pending() this will take into account
|
|
* read_ahead data. A 1 return simply indicates that we have unprocessed
|
|
* data. That data may not result in any application data, or we may fail
|
|
* to parse the records for some reason.
|
|
*/
|
|
if (RECORD_LAYER_processed_read_pending(&s->rlayer))
|
|
return 1;
|
|
|
|
return RECORD_LAYER_read_pending(&s->rlayer);
|
|
}
|
|
|
|
X509 *SSL_get_peer_certificate(const SSL *s)
|
|
{
|
|
X509 *r;
|
|
|
|
if ((s == NULL) || (s->session == NULL))
|
|
r = NULL;
|
|
else
|
|
r = s->session->peer;
|
|
|
|
if (r == NULL)
|
|
return r;
|
|
|
|
X509_up_ref(r);
|
|
|
|
return r;
|
|
}
|
|
|
|
STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
|
|
{
|
|
STACK_OF(X509) *r;
|
|
|
|
if ((s == NULL) || (s->session == NULL))
|
|
r = NULL;
|
|
else
|
|
r = s->session->peer_chain;
|
|
|
|
/*
|
|
* If we are a client, cert_chain includes the peer's own certificate; if
|
|
* we are a server, it does not.
|
|
*/
|
|
|
|
return r;
|
|
}
|
|
|
|
/*
|
|
* Now in theory, since the calling process own 't' it should be safe to
|
|
* modify. We need to be able to read f without being hassled
|
|
*/
|
|
int SSL_copy_session_id(SSL *t, const SSL *f)
|
|
{
|
|
int i;
|
|
/* Do we need to to SSL locking? */
|
|
if (!SSL_set_session(t, SSL_get_session(f))) {
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* what if we are setup for one protocol version but want to talk another
|
|
*/
|
|
if (t->method != f->method) {
|
|
t->method->ssl_free(t);
|
|
t->method = f->method;
|
|
if (t->method->ssl_new(t) == 0)
|
|
return 0;
|
|
}
|
|
|
|
CRYPTO_UP_REF(&f->cert->references, &i, f->cert->lock);
|
|
ssl_cert_free(t->cert);
|
|
t->cert = f->cert;
|
|
if (!SSL_set_session_id_context(t, f->sid_ctx, (int)f->sid_ctx_length)) {
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* Fix this so it checks all the valid key/cert options */
|
|
int SSL_CTX_check_private_key(const SSL_CTX *ctx)
|
|
{
|
|
if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) {
|
|
SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
|
|
return 0;
|
|
}
|
|
if (ctx->cert->key->privatekey == NULL) {
|
|
SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
|
|
return 0;
|
|
}
|
|
return X509_check_private_key
|
|
(ctx->cert->key->x509, ctx->cert->key->privatekey);
|
|
}
|
|
|
|
/* Fix this function so that it takes an optional type parameter */
|
|
int SSL_check_private_key(const SSL *ssl)
|
|
{
|
|
if (ssl == NULL) {
|
|
SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
|
|
return 0;
|
|
}
|
|
if (ssl->cert->key->x509 == NULL) {
|
|
SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
|
|
return 0;
|
|
}
|
|
if (ssl->cert->key->privatekey == NULL) {
|
|
SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
|
|
return 0;
|
|
}
|
|
return X509_check_private_key(ssl->cert->key->x509,
|
|
ssl->cert->key->privatekey);
|
|
}
|
|
|
|
int SSL_waiting_for_async(SSL *s)
|
|
{
|
|
if (s->job)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
|
|
{
|
|
ASYNC_WAIT_CTX *ctx = s->waitctx;
|
|
|
|
if (ctx == NULL)
|
|
return 0;
|
|
return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
|
|
}
|
|
|
|
int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
|
|
OSSL_ASYNC_FD *delfd, size_t *numdelfds)
|
|
{
|
|
ASYNC_WAIT_CTX *ctx = s->waitctx;
|
|
|
|
if (ctx == NULL)
|
|
return 0;
|
|
return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
|
|
numdelfds);
|
|
}
|
|
|
|
int SSL_accept(SSL *s)
|
|
{
|
|
if (s->handshake_func == NULL) {
|
|
/* Not properly initialized yet */
|
|
SSL_set_accept_state(s);
|
|
}
|
|
|
|
return SSL_do_handshake(s);
|
|
}
|
|
|
|
int SSL_connect(SSL *s)
|
|
{
|
|
if (s->handshake_func == NULL) {
|
|
/* Not properly initialized yet */
|
|
SSL_set_connect_state(s);
|
|
}
|
|
|
|
return SSL_do_handshake(s);
|
|
}
|
|
|
|
long SSL_get_default_timeout(const SSL *s)
|
|
{
|
|
return s->method->get_timeout();
|
|
}
|
|
|
|
static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
|
|
int (*func) (void *))
|
|
{
|
|
int ret;
|
|
if (s->waitctx == NULL) {
|
|
s->waitctx = ASYNC_WAIT_CTX_new();
|
|
if (s->waitctx == NULL)
|
|
return -1;
|
|
}
|
|
switch (ASYNC_start_job(&s->job, s->waitctx, &ret, func, args,
|
|
sizeof(struct ssl_async_args))) {
|
|
case ASYNC_ERR:
|
|
s->rwstate = SSL_NOTHING;
|
|
SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC);
|
|
return -1;
|
|
case ASYNC_PAUSE:
|
|
s->rwstate = SSL_ASYNC_PAUSED;
|
|
return -1;
|
|
case ASYNC_NO_JOBS:
|
|
s->rwstate = SSL_ASYNC_NO_JOBS;
|
|
return -1;
|
|
case ASYNC_FINISH:
|
|
s->job = NULL;
|
|
return ret;
|
|
default:
|
|
s->rwstate = SSL_NOTHING;
|
|
SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR);
|
|
/* Shouldn't happen */
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
static int ssl_io_intern(void *vargs)
|
|
{
|
|
struct ssl_async_args *args;
|
|
SSL *s;
|
|
void *buf;
|
|
size_t num;
|
|
|
|
args = (struct ssl_async_args *)vargs;
|
|
s = args->s;
|
|
buf = args->buf;
|
|
num = args->num;
|
|
switch (args->type) {
|
|
case READFUNC:
|
|
return args->f.func_read(s, buf, num, &s->asyncrw);
|
|
case WRITEFUNC:
|
|
return args->f.func_write(s, buf, num, &s->asyncrw);
|
|
case OTHERFUNC:
|
|
return args->f.func_other(s);
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
|
|
{
|
|
if (s->handshake_func == NULL) {
|
|
SSLerr(SSL_F_SSL_READ_INTERNAL, SSL_R_UNINITIALIZED);
|
|
return -1;
|
|
}
|
|
|
|
if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
|
|
s->rwstate = SSL_NOTHING;
|
|
return 0;
|
|
}
|
|
|
|
if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
|
|
|| s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) {
|
|
SSLerr(SSL_F_SSL_READ_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
|
|
return 0;
|
|
}
|
|
/*
|
|
* If we are a client and haven't received the ServerHello etc then we
|
|
* better do that
|
|
*/
|
|
ossl_statem_check_finish_init(s, 0);
|
|
|
|
if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
|
|
struct ssl_async_args args;
|
|
int ret;
|
|
|
|
args.s = s;
|
|
args.buf = buf;
|
|
args.num = num;
|
|
args.type = READFUNC;
|
|
args.f.func_read = s->method->ssl_read;
|
|
|
|
ret = ssl_start_async_job(s, &args, ssl_io_intern);
|
|
*readbytes = s->asyncrw;
|
|
return ret;
|
|
} else {
|
|
return s->method->ssl_read(s, buf, num, readbytes);
|
|
}
|
|
}
|
|
|
|
int SSL_read(SSL *s, void *buf, int num)
|
|
{
|
|
int ret;
|
|
size_t readbytes;
|
|
|
|
if (num < 0) {
|
|
SSLerr(SSL_F_SSL_READ, SSL_R_BAD_LENGTH);
|
|
return -1;
|
|
}
|
|
|
|
ret = ssl_read_internal(s, buf, (size_t)num, &readbytes);
|
|
|
|
/*
|
|
* The cast is safe here because ret should be <= INT_MAX because num is
|
|
* <= INT_MAX
|
|
*/
|
|
if (ret > 0)
|
|
ret = (int)readbytes;
|
|
|
|
return ret;
|
|
}
|
|
|
|
int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
|
|
{
|
|
int ret = ssl_read_internal(s, buf, num, readbytes);
|
|
|
|
if (ret < 0)
|
|
ret = 0;
|
|
return ret;
|
|
}
|
|
|
|
int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes)
|
|
{
|
|
int ret;
|
|
|
|
if (!s->server) {
|
|
SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
|
|
return SSL_READ_EARLY_DATA_ERROR;
|
|
}
|
|
|
|
switch (s->early_data_state) {
|
|
case SSL_EARLY_DATA_NONE:
|
|
if (!SSL_in_before(s)) {
|
|
SSLerr(SSL_F_SSL_READ_EARLY_DATA,
|
|
ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
|
|
return SSL_READ_EARLY_DATA_ERROR;
|
|
}
|
|
/* fall through */
|
|
|
|
case SSL_EARLY_DATA_ACCEPT_RETRY:
|
|
s->early_data_state = SSL_EARLY_DATA_ACCEPTING;
|
|
ret = SSL_accept(s);
|
|
if (ret <= 0) {
|
|
/* NBIO or error */
|
|
s->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY;
|
|
return SSL_READ_EARLY_DATA_ERROR;
|
|
}
|
|
/* fall through */
|
|
|
|
case SSL_EARLY_DATA_READ_RETRY:
|
|
if (s->ext.early_data == SSL_EARLY_DATA_ACCEPTED) {
|
|
s->early_data_state = SSL_EARLY_DATA_READING;
|
|
ret = SSL_read_ex(s, buf, num, readbytes);
|
|
/*
|
|
* State machine will update early_data_state to
|
|
* SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
|
|
* message
|
|
*/
|
|
if (ret > 0 || (ret <= 0 && s->early_data_state
|
|
!= SSL_EARLY_DATA_FINISHED_READING)) {
|
|
s->early_data_state = SSL_EARLY_DATA_READ_RETRY;
|
|
return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS
|
|
: SSL_READ_EARLY_DATA_ERROR;
|
|
}
|
|
} else {
|
|
s->early_data_state = SSL_EARLY_DATA_FINISHED_READING;
|
|
}
|
|
*readbytes = 0;
|
|
return SSL_READ_EARLY_DATA_FINISH;
|
|
|
|
default:
|
|
SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
|
|
return SSL_READ_EARLY_DATA_ERROR;
|
|
}
|
|
}
|
|
|
|
int SSL_get_early_data_status(const SSL *s)
|
|
{
|
|
return s->ext.early_data;
|
|
}
|
|
|
|
static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
|
|
{
|
|
if (s->handshake_func == NULL) {
|
|
SSLerr(SSL_F_SSL_PEEK_INTERNAL, SSL_R_UNINITIALIZED);
|
|
return -1;
|
|
}
|
|
|
|
if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
|
|
return 0;
|
|
}
|
|
if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
|
|
struct ssl_async_args args;
|
|
int ret;
|
|
|
|
args.s = s;
|
|
args.buf = buf;
|
|
args.num = num;
|
|
args.type = READFUNC;
|
|
args.f.func_read = s->method->ssl_peek;
|
|
|
|
ret = ssl_start_async_job(s, &args, ssl_io_intern);
|
|
*readbytes = s->asyncrw;
|
|
return ret;
|
|
} else {
|
|
return s->method->ssl_peek(s, buf, num, readbytes);
|
|
}
|
|
}
|
|
|
|
int SSL_peek(SSL *s, void *buf, int num)
|
|
{
|
|
int ret;
|
|
size_t readbytes;
|
|
|
|
if (num < 0) {
|
|
SSLerr(SSL_F_SSL_PEEK, SSL_R_BAD_LENGTH);
|
|
return -1;
|
|
}
|
|
|
|
ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes);
|
|
|
|
/*
|
|
* The cast is safe here because ret should be <= INT_MAX because num is
|
|
* <= INT_MAX
|
|
*/
|
|
if (ret > 0)
|
|
ret = (int)readbytes;
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
|
|
{
|
|
int ret = ssl_peek_internal(s, buf, num, readbytes);
|
|
|
|
if (ret < 0)
|
|
ret = 0;
|
|
return ret;
|
|
}
|
|
|
|
int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written)
|
|
{
|
|
if (s->handshake_func == NULL) {
|
|
SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_UNINITIALIZED);
|
|
return -1;
|
|
}
|
|
|
|
if (s->shutdown & SSL_SENT_SHUTDOWN) {
|
|
s->rwstate = SSL_NOTHING;
|
|
SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_PROTOCOL_IS_SHUTDOWN);
|
|
return -1;
|
|
}
|
|
|
|
if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
|
|
|| s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY
|
|
|| s->early_data_state == SSL_EARLY_DATA_READ_RETRY) {
|
|
SSLerr(SSL_F_SSL_WRITE_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
|
|
return 0;
|
|
}
|
|
/* If we are a client and haven't sent the Finished we better do that */
|
|
ossl_statem_check_finish_init(s, 1);
|
|
|
|
if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
|
|
int ret;
|
|
struct ssl_async_args args;
|
|
|
|
args.s = s;
|
|
args.buf = (void *)buf;
|
|
args.num = num;
|
|
args.type = WRITEFUNC;
|
|
args.f.func_write = s->method->ssl_write;
|
|
|
|
ret = ssl_start_async_job(s, &args, ssl_io_intern);
|
|
*written = s->asyncrw;
|
|
return ret;
|
|
} else {
|
|
return s->method->ssl_write(s, buf, num, written);
|
|
}
|
|
}
|
|
|
|
int SSL_write(SSL *s, const void *buf, int num)
|
|
{
|
|
int ret;
|
|
size_t written;
|
|
|
|
if (num < 0) {
|
|
SSLerr(SSL_F_SSL_WRITE, SSL_R_BAD_LENGTH);
|
|
return -1;
|
|
}
|
|
|
|
ret = ssl_write_internal(s, buf, (size_t)num, &written);
|
|
|
|
/*
|
|
* The cast is safe here because ret should be <= INT_MAX because num is
|
|
* <= INT_MAX
|
|
*/
|
|
if (ret > 0)
|
|
ret = (int)written;
|
|
|
|
return ret;
|
|
}
|
|
|
|
int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written)
|
|
{
|
|
int ret = ssl_write_internal(s, buf, num, written);
|
|
|
|
if (ret < 0)
|
|
ret = 0;
|
|
return ret;
|
|
}
|
|
|
|
int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written)
|
|
{
|
|
int ret, early_data_state;
|
|
size_t writtmp;
|
|
uint32_t partialwrite;
|
|
|
|
switch (s->early_data_state) {
|
|
case SSL_EARLY_DATA_NONE:
|
|
if (s->server
|
|
|| !SSL_in_before(s)
|
|
|| ((s->session == NULL || s->session->ext.max_early_data == 0)
|
|
&& (s->psk_use_session_cb == NULL))) {
|
|
SSLerr(SSL_F_SSL_WRITE_EARLY_DATA,
|
|
ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
|
|
return 0;
|
|
}
|
|
/* fall through */
|
|
|
|
case SSL_EARLY_DATA_CONNECT_RETRY:
|
|
s->early_data_state = SSL_EARLY_DATA_CONNECTING;
|
|
ret = SSL_connect(s);
|
|
if (ret <= 0) {
|
|
/* NBIO or error */
|
|
s->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY;
|
|
return 0;
|
|
}
|
|
/* fall through */
|
|
|
|
case SSL_EARLY_DATA_WRITE_RETRY:
|
|
s->early_data_state = SSL_EARLY_DATA_WRITING;
|
|
/*
|
|
* We disable partial write for early data because we don't keep track
|
|
* of how many bytes we've written between the SSL_write_ex() call and
|
|
* the flush if the flush needs to be retried)
|
|
*/
|
|
partialwrite = s->mode & SSL_MODE_ENABLE_PARTIAL_WRITE;
|
|
s->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE;
|
|
ret = SSL_write_ex(s, buf, num, &writtmp);
|
|
s->mode |= partialwrite;
|
|
if (!ret) {
|
|
s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
|
|
return ret;
|
|
}
|
|
s->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH;
|
|
/* fall through */
|
|
|
|
case SSL_EARLY_DATA_WRITE_FLUSH:
|
|
/* The buffering BIO is still in place so we need to flush it */
|
|
if (statem_flush(s) != 1)
|
|
return 0;
|
|
*written = num;
|
|
s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
|
|
return 1;
|
|
|
|
case SSL_EARLY_DATA_FINISHED_READING:
|
|
case SSL_EARLY_DATA_READ_RETRY:
|
|
early_data_state = s->early_data_state;
|
|
/* We are a server writing to an unauthenticated client */
|
|
s->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING;
|
|
ret = SSL_write_ex(s, buf, num, written);
|
|
/* The buffering BIO is still in place */
|
|
if (ret)
|
|
(void)BIO_flush(s->wbio);
|
|
s->early_data_state = early_data_state;
|
|
return ret;
|
|
|
|
default:
|
|
SSLerr(SSL_F_SSL_WRITE_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
int SSL_shutdown(SSL *s)
|
|
{
|
|
/*
|
|
* Note that this function behaves differently from what one might
|
|
* expect. Return values are 0 for no success (yet), 1 for success; but
|
|
* calling it once is usually not enough, even if blocking I/O is used
|
|
* (see ssl3_shutdown).
|
|
*/
|
|
|
|
if (s->handshake_func == NULL) {
|
|
SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
|
|
return -1;
|
|
}
|
|
|
|
if (!SSL_in_init(s)) {
|
|
if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
|
|
struct ssl_async_args args;
|
|
|
|
args.s = s;
|
|
args.type = OTHERFUNC;
|
|
args.f.func_other = s->method->ssl_shutdown;
|
|
|
|
return ssl_start_async_job(s, &args, ssl_io_intern);
|
|
} else {
|
|
return s->method->ssl_shutdown(s);
|
|
}
|
|
} else {
|
|
SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
int SSL_key_update(SSL *s, int updatetype)
|
|
{
|
|
/*
|
|
* TODO(TLS1.3): How will applications know whether TLSv1.3 has been
|
|
* negotiated, and that it is appropriate to call SSL_key_update() instead
|
|
* of SSL_renegotiate().
|
|
*/
|
|
if (!SSL_IS_TLS13(s)) {
|
|
SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_WRONG_SSL_VERSION);
|
|
return 0;
|
|
}
|
|
|
|
if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED
|
|
&& updatetype != SSL_KEY_UPDATE_REQUESTED) {
|
|
SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_INVALID_KEY_UPDATE_TYPE);
|
|
return 0;
|
|
}
|
|
|
|
if (!SSL_is_init_finished(s)) {
|
|
SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_STILL_IN_INIT);
|
|
return 0;
|
|
}
|
|
|
|
ossl_statem_set_in_init(s, 1);
|
|
s->key_update = updatetype;
|
|
return 1;
|
|
}
|
|
|
|
int SSL_get_key_update_type(const SSL *s)
|
|
{
|
|
return s->key_update;
|
|
}
|
|
|
|
int SSL_renegotiate(SSL *s)
|
|
{
|
|
if (SSL_IS_TLS13(s)) {
|
|
SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_WRONG_SSL_VERSION);
|
|
return 0;
|
|
}
|
|
|
|
if ((s->options & SSL_OP_NO_RENEGOTIATION)) {
|
|
SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_NO_RENEGOTIATION);
|
|
return 0;
|
|
}
|
|
|
|
s->renegotiate = 1;
|
|
s->new_session = 1;
|
|
|
|
return s->method->ssl_renegotiate(s);
|
|
}
|
|
|
|
int SSL_renegotiate_abbreviated(SSL *s)
|
|
{
|
|
if (SSL_IS_TLS13(s)) {
|
|
SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED, SSL_R_WRONG_SSL_VERSION);
|
|
return 0;
|
|
}
|
|
|
|
if ((s->options & SSL_OP_NO_RENEGOTIATION)) {
|
|
SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED, SSL_R_NO_RENEGOTIATION);
|
|
return 0;
|
|
}
|
|
|
|
s->renegotiate = 1;
|
|
s->new_session = 0;
|
|
|
|
return s->method->ssl_renegotiate(s);
|
|
}
|
|
|
|
int SSL_renegotiate_pending(const SSL *s)
|
|
{
|
|
/*
|
|
* becomes true when negotiation is requested; false again once a
|
|
* handshake has finished
|
|
*/
|
|
return (s->renegotiate != 0);
|
|
}
|
|
|
|
long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
|
|
{
|
|
long l;
|
|
|
|
switch (cmd) {
|
|
case SSL_CTRL_GET_READ_AHEAD:
|
|
return RECORD_LAYER_get_read_ahead(&s->rlayer);
|
|
case SSL_CTRL_SET_READ_AHEAD:
|
|
l = RECORD_LAYER_get_read_ahead(&s->rlayer);
|
|
RECORD_LAYER_set_read_ahead(&s->rlayer, larg);
|
|
return l;
|
|
|
|
case SSL_CTRL_SET_MSG_CALLBACK_ARG:
|
|
s->msg_callback_arg = parg;
|
|
return 1;
|
|
|
|
case SSL_CTRL_MODE:
|
|
return (s->mode |= larg);
|
|
case SSL_CTRL_CLEAR_MODE:
|
|
return (s->mode &= ~larg);
|
|
case SSL_CTRL_GET_MAX_CERT_LIST:
|
|
return (long)s->max_cert_list;
|
|
case SSL_CTRL_SET_MAX_CERT_LIST:
|
|
if (larg < 0)
|
|
return 0;
|
|
l = (long)s->max_cert_list;
|
|
s->max_cert_list = (size_t)larg;
|
|
return l;
|
|
case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
|
|
if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
|
|
return 0;
|
|
s->max_send_fragment = larg;
|
|
if (s->max_send_fragment < s->split_send_fragment)
|
|
s->split_send_fragment = s->max_send_fragment;
|
|
return 1;
|
|
case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
|
|
if ((size_t)larg > s->max_send_fragment || larg == 0)
|
|
return 0;
|
|
s->split_send_fragment = larg;
|
|
return 1;
|
|
case SSL_CTRL_SET_MAX_PIPELINES:
|
|
if (larg < 1 || larg > SSL_MAX_PIPELINES)
|
|
return 0;
|
|
s->max_pipelines = larg;
|
|
if (larg > 1)
|
|
RECORD_LAYER_set_read_ahead(&s->rlayer, 1);
|
|
return 1;
|
|
case SSL_CTRL_GET_RI_SUPPORT:
|
|
if (s->s3)
|
|
return s->s3->send_connection_binding;
|
|
else
|
|
return 0;
|
|
case SSL_CTRL_CERT_FLAGS:
|
|
return (s->cert->cert_flags |= larg);
|
|
case SSL_CTRL_CLEAR_CERT_FLAGS:
|
|
return (s->cert->cert_flags &= ~larg);
|
|
|
|
case SSL_CTRL_GET_RAW_CIPHERLIST:
|
|
if (parg) {
|
|
if (s->s3->tmp.ciphers_raw == NULL)
|
|
return 0;
|
|
*(unsigned char **)parg = s->s3->tmp.ciphers_raw;
|
|
return (int)s->s3->tmp.ciphers_rawlen;
|
|
} else {
|
|
return TLS_CIPHER_LEN;
|
|
}
|
|
case SSL_CTRL_GET_EXTMS_SUPPORT:
|
|
if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s))
|
|
return -1;
|
|
if (s->session->flags & SSL_SESS_FLAG_EXTMS)
|
|
return 1;
|
|
else
|
|
return 0;
|
|
case SSL_CTRL_SET_MIN_PROTO_VERSION:
|
|
return ssl_check_allowed_versions(larg, s->max_proto_version)
|
|
&& ssl_set_version_bound(s->ctx->method->version, (int)larg,
|
|
&s->min_proto_version);
|
|
case SSL_CTRL_GET_MIN_PROTO_VERSION:
|
|
return s->min_proto_version;
|
|
case SSL_CTRL_SET_MAX_PROTO_VERSION:
|
|
return ssl_check_allowed_versions(s->min_proto_version, larg)
|
|
&& ssl_set_version_bound(s->ctx->method->version, (int)larg,
|
|
&s->max_proto_version);
|
|
case SSL_CTRL_GET_MAX_PROTO_VERSION:
|
|
return s->max_proto_version;
|
|
default:
|
|
return s->method->ssl_ctrl(s, cmd, larg, parg);
|
|
}
|
|
}
|
|
|
|
long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
|
|
{
|
|
switch (cmd) {
|
|
case SSL_CTRL_SET_MSG_CALLBACK:
|
|
s->msg_callback = (void (*)
|
|
(int write_p, int version, int content_type,
|
|
const void *buf, size_t len, SSL *ssl,
|
|
void *arg))(fp);
|
|
return 1;
|
|
|
|
default:
|
|
return s->method->ssl_callback_ctrl(s, cmd, fp);
|
|
}
|
|
}
|
|
|
|
LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
|
|
{
|
|
return ctx->sessions;
|
|
}
|
|
|
|
long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
|
|
{
|
|
long l;
|
|
/* For some cases with ctx == NULL perform syntax checks */
|
|
if (ctx == NULL) {
|
|
switch (cmd) {
|
|
#ifndef OPENSSL_NO_EC
|
|
case SSL_CTRL_SET_GROUPS_LIST:
|
|
return tls1_set_groups_list(NULL, NULL, parg);
|
|
#endif
|
|
case SSL_CTRL_SET_SIGALGS_LIST:
|
|
case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
|
|
return tls1_set_sigalgs_list(NULL, parg, 0);
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
switch (cmd) {
|
|
case SSL_CTRL_GET_READ_AHEAD:
|
|
return ctx->read_ahead;
|
|
case SSL_CTRL_SET_READ_AHEAD:
|
|
l = ctx->read_ahead;
|
|
ctx->read_ahead = larg;
|
|
return l;
|
|
|
|
case SSL_CTRL_SET_MSG_CALLBACK_ARG:
|
|
ctx->msg_callback_arg = parg;
|
|
return 1;
|
|
|
|
case SSL_CTRL_GET_MAX_CERT_LIST:
|
|
return (long)ctx->max_cert_list;
|
|
case SSL_CTRL_SET_MAX_CERT_LIST:
|
|
if (larg < 0)
|
|
return 0;
|
|
l = (long)ctx->max_cert_list;
|
|
ctx->max_cert_list = (size_t)larg;
|
|
return l;
|
|
|
|
case SSL_CTRL_SET_SESS_CACHE_SIZE:
|
|
if (larg < 0)
|
|
return 0;
|
|
l = (long)ctx->session_cache_size;
|
|
ctx->session_cache_size = (size_t)larg;
|
|
return l;
|
|
case SSL_CTRL_GET_SESS_CACHE_SIZE:
|
|
return (long)ctx->session_cache_size;
|
|
case SSL_CTRL_SET_SESS_CACHE_MODE:
|
|
l = ctx->session_cache_mode;
|
|
ctx->session_cache_mode = larg;
|
|
return l;
|
|
case SSL_CTRL_GET_SESS_CACHE_MODE:
|
|
return ctx->session_cache_mode;
|
|
|
|
case SSL_CTRL_SESS_NUMBER:
|
|
return lh_SSL_SESSION_num_items(ctx->sessions);
|
|
case SSL_CTRL_SESS_CONNECT:
|
|
return tsan_load(&ctx->stats.sess_connect);
|
|
case SSL_CTRL_SESS_CONNECT_GOOD:
|
|
return tsan_load(&ctx->stats.sess_connect_good);
|
|
case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
|
|
return tsan_load(&ctx->stats.sess_connect_renegotiate);
|
|
case SSL_CTRL_SESS_ACCEPT:
|
|
return tsan_load(&ctx->stats.sess_accept);
|
|
case SSL_CTRL_SESS_ACCEPT_GOOD:
|
|
return tsan_load(&ctx->stats.sess_accept_good);
|
|
case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
|
|
return tsan_load(&ctx->stats.sess_accept_renegotiate);
|
|
case SSL_CTRL_SESS_HIT:
|
|
return tsan_load(&ctx->stats.sess_hit);
|
|
case SSL_CTRL_SESS_CB_HIT:
|
|
return tsan_load(&ctx->stats.sess_cb_hit);
|
|
case SSL_CTRL_SESS_MISSES:
|
|
return tsan_load(&ctx->stats.sess_miss);
|
|
case SSL_CTRL_SESS_TIMEOUTS:
|
|
return tsan_load(&ctx->stats.sess_timeout);
|
|
case SSL_CTRL_SESS_CACHE_FULL:
|
|
return tsan_load(&ctx->stats.sess_cache_full);
|
|
case SSL_CTRL_MODE:
|
|
return (ctx->mode |= larg);
|
|
case SSL_CTRL_CLEAR_MODE:
|
|
return (ctx->mode &= ~larg);
|
|
case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
|
|
if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
|
|
return 0;
|
|
ctx->max_send_fragment = larg;
|
|
if (ctx->max_send_fragment < ctx->split_send_fragment)
|
|
ctx->split_send_fragment = ctx->max_send_fragment;
|
|
return 1;
|
|
case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
|
|
if ((size_t)larg > ctx->max_send_fragment || larg == 0)
|
|
return 0;
|
|
ctx->split_send_fragment = larg;
|
|
return 1;
|
|
case SSL_CTRL_SET_MAX_PIPELINES:
|
|
if (larg < 1 || larg > SSL_MAX_PIPELINES)
|
|
return 0;
|
|
ctx->max_pipelines = larg;
|
|
return 1;
|
|
case SSL_CTRL_CERT_FLAGS:
|
|
return (ctx->cert->cert_flags |= larg);
|
|
case SSL_CTRL_CLEAR_CERT_FLAGS:
|
|
return (ctx->cert->cert_flags &= ~larg);
|
|
case SSL_CTRL_SET_MIN_PROTO_VERSION:
|
|
return ssl_check_allowed_versions(larg, ctx->max_proto_version)
|
|
&& ssl_set_version_bound(ctx->method->version, (int)larg,
|
|
&ctx->min_proto_version);
|
|
case SSL_CTRL_GET_MIN_PROTO_VERSION:
|
|
return ctx->min_proto_version;
|
|
case SSL_CTRL_SET_MAX_PROTO_VERSION:
|
|
return ssl_check_allowed_versions(ctx->min_proto_version, larg)
|
|
&& ssl_set_version_bound(ctx->method->version, (int)larg,
|
|
&ctx->max_proto_version);
|
|
case SSL_CTRL_GET_MAX_PROTO_VERSION:
|
|
return ctx->max_proto_version;
|
|
default:
|
|
return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg);
|
|
}
|
|
}
|
|
|
|
long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
|
|
{
|
|
switch (cmd) {
|
|
case SSL_CTRL_SET_MSG_CALLBACK:
|
|
ctx->msg_callback = (void (*)
|
|
(int write_p, int version, int content_type,
|
|
const void *buf, size_t len, SSL *ssl,
|
|
void *arg))(fp);
|
|
return 1;
|
|
|
|
default:
|
|
return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp);
|
|
}
|
|
}
|
|
|
|
int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
|
|
{
|
|
if (a->id > b->id)
|
|
return 1;
|
|
if (a->id < b->id)
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
|
|
const SSL_CIPHER *const *bp)
|
|
{
|
|
if ((*ap)->id > (*bp)->id)
|
|
return 1;
|
|
if ((*ap)->id < (*bp)->id)
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
/** return a STACK of the ciphers available for the SSL and in order of
|
|
* preference */
|
|
STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
|
|
{
|
|
if (s != NULL) {
|
|
if (s->cipher_list != NULL) {
|
|
return s->cipher_list;
|
|
} else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
|
|
return s->ctx->cipher_list;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
|
|
{
|
|
if ((s == NULL) || !s->server)
|
|
return NULL;
|
|
return s->peer_ciphers;
|
|
}
|
|
|
|
STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
|
|
{
|
|
STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
|
|
int i;
|
|
|
|
ciphers = SSL_get_ciphers(s);
|
|
if (!ciphers)
|
|
return NULL;
|
|
if (!ssl_set_client_disabled(s))
|
|
return NULL;
|
|
for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
|
|
const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
|
|
if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) {
|
|
if (!sk)
|
|
sk = sk_SSL_CIPHER_new_null();
|
|
if (!sk)
|
|
return NULL;
|
|
if (!sk_SSL_CIPHER_push(sk, c)) {
|
|
sk_SSL_CIPHER_free(sk);
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
return sk;
|
|
}
|
|
|
|
/** return a STACK of the ciphers available for the SSL and in order of
|
|
* algorithm id */
|
|
STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
|
|
{
|
|
if (s != NULL) {
|
|
if (s->cipher_list_by_id != NULL) {
|
|
return s->cipher_list_by_id;
|
|
} else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
|
|
return s->ctx->cipher_list_by_id;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/** The old interface to get the same thing as SSL_get_ciphers() */
|
|
const char *SSL_get_cipher_list(const SSL *s, int n)
|
|
{
|
|
const SSL_CIPHER *c;
|
|
STACK_OF(SSL_CIPHER) *sk;
|
|
|
|
if (s == NULL)
|
|
return NULL;
|
|
sk = SSL_get_ciphers(s);
|
|
if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
|
|
return NULL;
|
|
c = sk_SSL_CIPHER_value(sk, n);
|
|
if (c == NULL)
|
|
return NULL;
|
|
return c->name;
|
|
}
|
|
|
|
/** return a STACK of the ciphers available for the SSL_CTX and in order of
|
|
* preference */
|
|
STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx)
|
|
{
|
|
if (ctx != NULL)
|
|
return ctx->cipher_list;
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Distinguish between ciphers controlled by set_ciphersuite() and
|
|
* set_cipher_list() when counting.
|
|
*/
|
|
static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER) *sk)
|
|
{
|
|
int i, num = 0;
|
|
const SSL_CIPHER *c;
|
|
|
|
if (sk == NULL)
|
|
return 0;
|
|
for (i = 0; i < sk_SSL_CIPHER_num(sk); ++i) {
|
|
c = sk_SSL_CIPHER_value(sk, i);
|
|
if (c->min_tls >= TLS1_3_VERSION)
|
|
continue;
|
|
num++;
|
|
}
|
|
return num;
|
|
}
|
|
|
|
/** specify the ciphers to be used by default by the SSL_CTX */
|
|
int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
|
|
{
|
|
STACK_OF(SSL_CIPHER) *sk;
|
|
|
|
sk = ssl_create_cipher_list(ctx->method, ctx->tls13_ciphersuites,
|
|
&ctx->cipher_list, &ctx->cipher_list_by_id, str,
|
|
ctx->cert);
|
|
/*
|
|
* ssl_create_cipher_list may return an empty stack if it was unable to
|
|
* find a cipher matching the given rule string (for example if the rule
|
|
* string specifies a cipher which has been disabled). This is not an
|
|
* error as far as ssl_create_cipher_list is concerned, and hence
|
|
* ctx->cipher_list and ctx->cipher_list_by_id has been updated.
|
|
*/
|
|
if (sk == NULL)
|
|
return 0;
|
|
else if (cipher_list_tls12_num(sk) == 0) {
|
|
SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/** specify the ciphers to be used by the SSL */
|
|
int SSL_set_cipher_list(SSL *s, const char *str)
|
|
{
|
|
STACK_OF(SSL_CIPHER) *sk;
|
|
|
|
sk = ssl_create_cipher_list(s->ctx->method, s->tls13_ciphersuites,
|
|
&s->cipher_list, &s->cipher_list_by_id, str,
|
|
s->cert);
|
|
/* see comment in SSL_CTX_set_cipher_list */
|
|
if (sk == NULL)
|
|
return 0;
|
|
else if (cipher_list_tls12_num(sk) == 0) {
|
|
SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size)
|
|
{
|
|
char *p;
|
|
STACK_OF(SSL_CIPHER) *clntsk, *srvrsk;
|
|
const SSL_CIPHER *c;
|
|
int i;
|
|
|
|
if (!s->server
|
|
|| s->peer_ciphers == NULL
|
|
|| size < 2)
|
|
return NULL;
|
|
|
|
p = buf;
|
|
clntsk = s->peer_ciphers;
|
|
srvrsk = SSL_get_ciphers(s);
|
|
if (clntsk == NULL || srvrsk == NULL)
|
|
return NULL;
|
|
|
|
if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0)
|
|
return NULL;
|
|
|
|
for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) {
|
|
int n;
|
|
|
|
c = sk_SSL_CIPHER_value(clntsk, i);
|
|
if (sk_SSL_CIPHER_find(srvrsk, c) < 0)
|
|
continue;
|
|
|
|
n = strlen(c->name);
|
|
if (n + 1 > size) {
|
|
if (p != buf)
|
|
--p;
|
|
*p = '\0';
|
|
return buf;
|
|
}
|
|
strcpy(p, c->name);
|
|
p += n;
|
|
*(p++) = ':';
|
|
size -= n + 1;
|
|
}
|
|
p[-1] = '\0';
|
|
return buf;
|
|
}
|
|
|
|
/**
|
|
* Return the requested servername (SNI) value. Note that the behaviour varies
|
|
* depending on:
|
|
* - whether this is called by the client or the server,
|
|
* - if we are before or during/after the handshake,
|
|
* - if a resumption or normal handshake is being attempted/has occurred
|
|
* - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
|
|
*
|
|
* Note that only the host_name type is defined (RFC 3546).
|
|
*/
|
|
const char *SSL_get_servername(const SSL *s, const int type)
|
|
{
|
|
/*
|
|
* If we don't know if we are the client or the server yet then we assume
|
|
* client.
|
|
*/
|
|
int server = s->handshake_func == NULL ? 0 : s->server;
|
|
if (type != TLSEXT_NAMETYPE_host_name)
|
|
return NULL;
|
|
|
|
if (server) {
|
|
/**
|
|
* Server side
|
|
* In TLSv1.3 on the server SNI is not associated with the session
|
|
* but in TLSv1.2 or below it is.
|
|
*
|
|
* Before the handshake:
|
|
* - return NULL
|
|
*
|
|
* During/after the handshake (TLSv1.2 or below resumption occurred):
|
|
* - If a servername was accepted by the server in the original
|
|
* handshake then it will return that servername, or NULL otherwise.
|
|
*
|
|
* During/after the handshake (TLSv1.2 or below resumption did not occur):
|
|
* - The function will return the servername requested by the client in
|
|
* this handshake or NULL if none was requested.
|
|
*/
|
|
if (s->hit && !SSL_IS_TLS13(s))
|
|
return s->session->ext.hostname;
|
|
} else {
|
|
/**
|
|
* Client side
|
|
*
|
|
* Before the handshake:
|
|
* - If a servername has been set via a call to
|
|
* SSL_set_tlsext_host_name() then it will return that servername
|
|
* - If one has not been set, but a TLSv1.2 resumption is being
|
|
* attempted and the session from the original handshake had a
|
|
* servername accepted by the server then it will return that
|
|
* servername
|
|
* - Otherwise it returns NULL
|
|
*
|
|
* During/after the handshake (TLSv1.2 or below resumption occurred):
|
|
* - If the session from the original handshake had a servername accepted
|
|
* by the server then it will return that servername.
|
|
* - Otherwise it returns the servername set via
|
|
* SSL_set_tlsext_host_name() (or NULL if it was not called).
|
|
*
|
|
* During/after the handshake (TLSv1.2 or below resumption did not occur):
|
|
* - It will return the servername set via SSL_set_tlsext_host_name()
|
|
* (or NULL if it was not called).
|
|
*/
|
|
if (SSL_in_before(s)) {
|
|
if (s->ext.hostname == NULL
|
|
&& s->session != NULL
|
|
&& s->session->ssl_version != TLS1_3_VERSION)
|
|
return s->session->ext.hostname;
|
|
} else {
|
|
if (!SSL_IS_TLS13(s) && s->hit && s->session->ext.hostname != NULL)
|
|
return s->session->ext.hostname;
|
|
}
|
|
}
|
|
|
|
return s->ext.hostname;
|
|
}
|
|
|
|
int SSL_get_servername_type(const SSL *s)
|
|
{
|
|
if (SSL_get_servername(s, TLSEXT_NAMETYPE_host_name) != NULL)
|
|
return TLSEXT_NAMETYPE_host_name;
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* SSL_select_next_proto implements the standard protocol selection. It is
|
|
* expected that this function is called from the callback set by
|
|
* SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
|
|
* vector of 8-bit, length prefixed byte strings. The length byte itself is
|
|
* not included in the length. A byte string of length 0 is invalid. No byte
|
|
* string may be truncated. The current, but experimental algorithm for
|
|
* selecting the protocol is: 1) If the server doesn't support NPN then this
|
|
* is indicated to the callback. In this case, the client application has to
|
|
* abort the connection or have a default application level protocol. 2) If
|
|
* the server supports NPN, but advertises an empty list then the client
|
|
* selects the first protocol in its list, but indicates via the API that this
|
|
* fallback case was enacted. 3) Otherwise, the client finds the first
|
|
* protocol in the server's list that it supports and selects this protocol.
|
|
* This is because it's assumed that the server has better information about
|
|
* which protocol a client should use. 4) If the client doesn't support any
|
|
* of the server's advertised protocols, then this is treated the same as
|
|
* case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
|
|
* found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
|
|
*/
|
|
int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
|
|
const unsigned char *server,
|
|
unsigned int server_len,
|
|
const unsigned char *client, unsigned int client_len)
|
|
{
|
|
unsigned int i, j;
|
|
const unsigned char *result;
|
|
int status = OPENSSL_NPN_UNSUPPORTED;
|
|
|
|
/*
|
|
* For each protocol in server preference order, see if we support it.
|
|
*/
|
|
for (i = 0; i < server_len;) {
|
|
for (j = 0; j < client_len;) {
|
|
if (server[i] == client[j] &&
|
|
memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
|
|
/* We found a match */
|
|
result = &server[i];
|
|
status = OPENSSL_NPN_NEGOTIATED;
|
|
goto found;
|
|
}
|
|
j += client[j];
|
|
j++;
|
|
}
|
|
i += server[i];
|
|
i++;
|
|
}
|
|
|
|
/* There's no overlap between our protocols and the server's list. */
|
|
result = client;
|
|
status = OPENSSL_NPN_NO_OVERLAP;
|
|
|
|
found:
|
|
*out = (unsigned char *)result + 1;
|
|
*outlen = result[0];
|
|
return status;
|
|
}
|
|
|
|
#ifndef OPENSSL_NO_NEXTPROTONEG
|
|
/*
|
|
* SSL_get0_next_proto_negotiated sets *data and *len to point to the
|
|
* client's requested protocol for this connection and returns 0. If the
|
|
* client didn't request any protocol, then *data is set to NULL. Note that
|
|
* the client can request any protocol it chooses. The value returned from
|
|
* this function need not be a member of the list of supported protocols
|
|
* provided by the callback.
|
|
*/
|
|
void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
|
|
unsigned *len)
|
|
{
|
|
*data = s->ext.npn;
|
|
if (!*data) {
|
|
*len = 0;
|
|
} else {
|
|
*len = (unsigned int)s->ext.npn_len;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* SSL_CTX_set_npn_advertised_cb sets a callback that is called when
|
|
* a TLS server needs a list of supported protocols for Next Protocol
|
|
* Negotiation. The returned list must be in wire format. The list is
|
|
* returned by setting |out| to point to it and |outlen| to its length. This
|
|
* memory will not be modified, but one should assume that the SSL* keeps a
|
|
* reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
|
|
* wishes to advertise. Otherwise, no such extension will be included in the
|
|
* ServerHello.
|
|
*/
|
|
void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx,
|
|
SSL_CTX_npn_advertised_cb_func cb,
|
|
void *arg)
|
|
{
|
|
ctx->ext.npn_advertised_cb = cb;
|
|
ctx->ext.npn_advertised_cb_arg = arg;
|
|
}
|
|
|
|
/*
|
|
* SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
|
|
* client needs to select a protocol from the server's provided list. |out|
|
|
* must be set to point to the selected protocol (which may be within |in|).
|
|
* The length of the protocol name must be written into |outlen|. The
|
|
* server's advertised protocols are provided in |in| and |inlen|. The
|
|
* callback can assume that |in| is syntactically valid. The client must
|
|
* select a protocol. It is fatal to the connection if this callback returns
|
|
* a value other than SSL_TLSEXT_ERR_OK.
|
|
*/
|
|
void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx,
|
|
SSL_CTX_npn_select_cb_func cb,
|
|
void *arg)
|
|
{
|
|
ctx->ext.npn_select_cb = cb;
|
|
ctx->ext.npn_select_cb_arg = arg;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
|
|
* |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
|
|
* length-prefixed strings). Returns 0 on success.
|
|
*/
|
|
int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
|
|
unsigned int protos_len)
|
|
{
|
|
OPENSSL_free(ctx->ext.alpn);
|
|
ctx->ext.alpn = OPENSSL_memdup(protos, protos_len);
|
|
if (ctx->ext.alpn == NULL) {
|
|
SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE);
|
|
return 1;
|
|
}
|
|
ctx->ext.alpn_len = protos_len;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
|
|
* |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
|
|
* length-prefixed strings). Returns 0 on success.
|
|
*/
|
|
int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
|
|
unsigned int protos_len)
|
|
{
|
|
OPENSSL_free(ssl->ext.alpn);
|
|
ssl->ext.alpn = OPENSSL_memdup(protos, protos_len);
|
|
if (ssl->ext.alpn == NULL) {
|
|
SSLerr(SSL_F_SSL_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE);
|
|
return 1;
|
|
}
|
|
ssl->ext.alpn_len = protos_len;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
|
|
* called during ClientHello processing in order to select an ALPN protocol
|
|
* from the client's list of offered protocols.
|
|
*/
|
|
void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
|
|
SSL_CTX_alpn_select_cb_func cb,
|
|
void *arg)
|
|
{
|
|
ctx->ext.alpn_select_cb = cb;
|
|
ctx->ext.alpn_select_cb_arg = arg;
|
|
}
|
|
|
|
/*
|
|
* SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
|
|
* On return it sets |*data| to point to |*len| bytes of protocol name
|
|
* (not including the leading length-prefix byte). If the server didn't
|
|
* respond with a negotiated protocol then |*len| will be zero.
|
|
*/
|
|
void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
|
|
unsigned int *len)
|
|
{
|
|
*data = NULL;
|
|
if (ssl->s3)
|
|
*data = ssl->s3->alpn_selected;
|
|
if (*data == NULL)
|
|
*len = 0;
|
|
else
|
|
*len = (unsigned int)ssl->s3->alpn_selected_len;
|
|
}
|
|
|
|
int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
|
|
const char *label, size_t llen,
|
|
const unsigned char *context, size_t contextlen,
|
|
int use_context)
|
|
{
|
|
if (s->session == NULL
|
|
|| (s->version < TLS1_VERSION && s->version != DTLS1_BAD_VER))
|
|
return -1;
|
|
|
|
return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
|
|
llen, context,
|
|
contextlen, use_context);
|
|
}
|
|
|
|
int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen,
|
|
const char *label, size_t llen,
|
|
const unsigned char *context,
|
|
size_t contextlen)
|
|
{
|
|
if (s->version != TLS1_3_VERSION)
|
|
return 0;
|
|
|
|
return tls13_export_keying_material_early(s, out, olen, label, llen,
|
|
context, contextlen);
|
|
}
|
|
|
|
static unsigned long ssl_session_hash(const SSL_SESSION *a)
|
|
{
|
|
const unsigned char *session_id = a->session_id;
|
|
unsigned long l;
|
|
unsigned char tmp_storage[4];
|
|
|
|
if (a->session_id_length < sizeof(tmp_storage)) {
|
|
memset(tmp_storage, 0, sizeof(tmp_storage));
|
|
memcpy(tmp_storage, a->session_id, a->session_id_length);
|
|
session_id = tmp_storage;
|
|
}
|
|
|
|
l = (unsigned long)
|
|
((unsigned long)session_id[0]) |
|
|
((unsigned long)session_id[1] << 8L) |
|
|
((unsigned long)session_id[2] << 16L) |
|
|
((unsigned long)session_id[3] << 24L);
|
|
return l;
|
|
}
|
|
|
|
/*
|
|
* NB: If this function (or indeed the hash function which uses a sort of
|
|
* coarser function than this one) is changed, ensure
|
|
* SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
|
|
* being able to construct an SSL_SESSION that will collide with any existing
|
|
* session with a matching session ID.
|
|
*/
|
|
static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
|
|
{
|
|
if (a->ssl_version != b->ssl_version)
|
|
return 1;
|
|
if (a->session_id_length != b->session_id_length)
|
|
return 1;
|
|
return memcmp(a->session_id, b->session_id, a->session_id_length);
|
|
}
|
|
|
|
/*
|
|
* These wrapper functions should remain rather than redeclaring
|
|
* SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
|
|
* variable. The reason is that the functions aren't static, they're exposed
|
|
* via ssl.h.
|
|
*/
|
|
|
|
SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
|
|
{
|
|
SSL_CTX *ret = NULL;
|
|
|
|
if (meth == NULL) {
|
|
SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);
|
|
return NULL;
|
|
}
|
|
|
|
if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
|
|
return NULL;
|
|
|
|
if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
|
|
SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
|
|
goto err;
|
|
}
|
|
ret = OPENSSL_zalloc(sizeof(*ret));
|
|
if (ret == NULL)
|
|
goto err;
|
|
|
|
ret->method = meth;
|
|
ret->min_proto_version = 0;
|
|
ret->max_proto_version = 0;
|
|
ret->mode = SSL_MODE_AUTO_RETRY;
|
|
ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
|
|
ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
|
|
/* We take the system default. */
|
|
ret->session_timeout = meth->get_timeout();
|
|
ret->references = 1;
|
|
ret->lock = CRYPTO_THREAD_lock_new();
|
|
if (ret->lock == NULL) {
|
|
SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
|
|
OPENSSL_free(ret);
|
|
return NULL;
|
|
}
|
|
ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
|
|
ret->verify_mode = SSL_VERIFY_NONE;
|
|
if ((ret->cert = ssl_cert_new()) == NULL)
|
|
goto err;
|
|
|
|
ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
|
|
if (ret->sessions == NULL)
|
|
goto err;
|
|
ret->cert_store = X509_STORE_new();
|
|
if (ret->cert_store == NULL)
|
|
goto err;
|
|
#ifndef OPENSSL_NO_CT
|
|
ret->ctlog_store = CTLOG_STORE_new();
|
|
if (ret->ctlog_store == NULL)
|
|
goto err;
|
|
#endif
|
|
|
|
if (!SSL_CTX_set_ciphersuites(ret, TLS_DEFAULT_CIPHERSUITES))
|
|
goto err;
|
|
|
|
if (!ssl_create_cipher_list(ret->method,
|
|
ret->tls13_ciphersuites,
|
|
&ret->cipher_list, &ret->cipher_list_by_id,
|
|
SSL_DEFAULT_CIPHER_LIST, ret->cert)
|
|
|| sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
|
|
SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
|
|
goto err2;
|
|
}
|
|
|
|
ret->param = X509_VERIFY_PARAM_new();
|
|
if (ret->param == NULL)
|
|
goto err;
|
|
|
|
if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
|
|
SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
|
|
goto err2;
|
|
}
|
|
if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
|
|
SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
|
|
goto err2;
|
|
}
|
|
|
|
if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL)
|
|
goto err;
|
|
|
|
if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL)
|
|
goto err;
|
|
|
|
if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data))
|
|
goto err;
|
|
|
|
if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL)
|
|
goto err;
|
|
|
|
/* No compression for DTLS */
|
|
if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
|
|
ret->comp_methods = SSL_COMP_get_compression_methods();
|
|
|
|
ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
|
|
ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
|
|
|
|
/* Setup RFC5077 ticket keys */
|
|
if ((RAND_bytes(ret->ext.tick_key_name,
|
|
sizeof(ret->ext.tick_key_name)) <= 0)
|
|
|| (RAND_priv_bytes(ret->ext.secure->tick_hmac_key,
|
|
sizeof(ret->ext.secure->tick_hmac_key)) <= 0)
|
|
|| (RAND_priv_bytes(ret->ext.secure->tick_aes_key,
|
|
sizeof(ret->ext.secure->tick_aes_key)) <= 0))
|
|
ret->options |= SSL_OP_NO_TICKET;
|
|
|
|
if (RAND_priv_bytes(ret->ext.cookie_hmac_key,
|
|
sizeof(ret->ext.cookie_hmac_key)) <= 0)
|
|
goto err;
|
|
|
|
#ifndef OPENSSL_NO_SRP
|
|
if (!SSL_CTX_SRP_CTX_init(ret))
|
|
goto err;
|
|
#endif
|
|
#ifndef OPENSSL_NO_ENGINE
|
|
# ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
|
|
# define eng_strx(x) #x
|
|
# define eng_str(x) eng_strx(x)
|
|
/* Use specific client engine automatically... ignore errors */
|
|
{
|
|
ENGINE *eng;
|
|
eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
|
|
if (!eng) {
|
|
ERR_clear_error();
|
|
ENGINE_load_builtin_engines();
|
|
eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
|
|
}
|
|
if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
|
|
ERR_clear_error();
|
|
}
|
|
# endif
|
|
#endif
|
|
/*
|
|
* Default is to connect to non-RI servers. When RI is more widely
|
|
* deployed might change this.
|
|
*/
|
|
ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
|
|
/*
|
|
* Disable compression by default to prevent CRIME. Applications can
|
|
* re-enable compression by configuring
|
|
* SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
|
|
* or by using the SSL_CONF library. Similarly we also enable TLSv1.3
|
|
* middlebox compatibility by default. This may be disabled by default in
|
|
* a later OpenSSL version.
|
|
*/
|
|
ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT;
|
|
|
|
ret->ext.status_type = TLSEXT_STATUSTYPE_nothing;
|
|
|
|
/*
|
|
* We cannot usefully set a default max_early_data here (which gets
|
|
* propagated in SSL_new(), for the following reason: setting the
|
|
* SSL field causes tls_construct_stoc_early_data() to tell the
|
|
* client that early data will be accepted when constructing a TLS 1.3
|
|
* session ticket, and the client will accordingly send us early data
|
|
* when using that ticket (if the client has early data to send).
|
|
* However, in order for the early data to actually be consumed by
|
|
* the application, the application must also have calls to
|
|
* SSL_read_early_data(); otherwise we'll just skip past the early data
|
|
* and ignore it. So, since the application must add calls to
|
|
* SSL_read_early_data(), we also require them to add
|
|
* calls to SSL_CTX_set_max_early_data() in order to use early data,
|
|
* eliminating the bandwidth-wasting early data in the case described
|
|
* above.
|
|
*/
|
|
ret->max_early_data = 0;
|
|
|
|
/*
|
|
* Default recv_max_early_data is a fully loaded single record. Could be
|
|
* split across multiple records in practice. We set this differently to
|
|
* max_early_data so that, in the default case, we do not advertise any
|
|
* support for early_data, but if a client were to send us some (e.g.
|
|
* because of an old, stale ticket) then we will tolerate it and skip over
|
|
* it.
|
|
*/
|
|
ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
|
|
|
|
/* By default we send two session tickets automatically in TLSv1.3 */
|
|
ret->num_tickets = 2;
|
|
|
|
ssl_ctx_system_config(ret);
|
|
|
|
return ret;
|
|
err:
|
|
SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
|
|
err2:
|
|
SSL_CTX_free(ret);
|
|
return NULL;
|
|
}
|
|
|
|
int SSL_CTX_up_ref(SSL_CTX *ctx)
|
|
{
|
|
int i;
|
|
|
|
if (CRYPTO_UP_REF(&ctx->references, &i, ctx->lock) <= 0)
|
|
return 0;
|
|
|
|
REF_PRINT_COUNT("SSL_CTX", ctx);
|
|
REF_ASSERT_ISNT(i < 2);
|
|
return ((i > 1) ? 1 : 0);
|
|
}
|
|
|
|
void SSL_CTX_free(SSL_CTX *a)
|
|
{
|
|
int i;
|
|
|
|
if (a == NULL)
|
|
return;
|
|
|
|
CRYPTO_DOWN_REF(&a->references, &i, a->lock);
|
|
REF_PRINT_COUNT("SSL_CTX", a);
|
|
if (i > 0)
|
|
return;
|
|
REF_ASSERT_ISNT(i < 0);
|
|
|
|
X509_VERIFY_PARAM_free(a->param);
|
|
dane_ctx_final(&a->dane);
|
|
|
|
/*
|
|
* Free internal session cache. However: the remove_cb() may reference
|
|
* the ex_data of SSL_CTX, thus the ex_data store can only be removed
|
|
* after the sessions were flushed.
|
|
* As the ex_data handling routines might also touch the session cache,
|
|
* the most secure solution seems to be: empty (flush) the cache, then
|
|
* free ex_data, then finally free the cache.
|
|
* (See ticket [openssl.org #212].)
|
|
*/
|
|
if (a->sessions != NULL)
|
|
SSL_CTX_flush_sessions(a, 0);
|
|
|
|
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
|
|
lh_SSL_SESSION_free(a->sessions);
|
|
X509_STORE_free(a->cert_store);
|
|
#ifndef OPENSSL_NO_CT
|
|
CTLOG_STORE_free(a->ctlog_store);
|
|
#endif
|
|
sk_SSL_CIPHER_free(a->cipher_list);
|
|
sk_SSL_CIPHER_free(a->cipher_list_by_id);
|
|
sk_SSL_CIPHER_free(a->tls13_ciphersuites);
|
|
ssl_cert_free(a->cert);
|
|
sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free);
|
|
sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free);
|
|
sk_X509_pop_free(a->extra_certs, X509_free);
|
|
a->comp_methods = NULL;
|
|
#ifndef OPENSSL_NO_SRTP
|
|
sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
|
|
#endif
|
|
#ifndef OPENSSL_NO_SRP
|
|
SSL_CTX_SRP_CTX_free(a);
|
|
#endif
|
|
#ifndef OPENSSL_NO_ENGINE
|
|
ENGINE_finish(a->client_cert_engine);
|
|
#endif
|
|
|
|
#ifndef OPENSSL_NO_EC
|
|
OPENSSL_free(a->ext.ecpointformats);
|
|
OPENSSL_free(a->ext.supportedgroups);
|
|
#endif
|
|
OPENSSL_free(a->ext.alpn);
|
|
OPENSSL_secure_free(a->ext.secure);
|
|
|
|
CRYPTO_THREAD_lock_free(a->lock);
|
|
|
|
OPENSSL_free(a);
|
|
}
|
|
|
|
void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
|
|
{
|
|
ctx->default_passwd_callback = cb;
|
|
}
|
|
|
|
void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
|
|
{
|
|
ctx->default_passwd_callback_userdata = u;
|
|
}
|
|
|
|
pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
|
|
{
|
|
return ctx->default_passwd_callback;
|
|
}
|
|
|
|
void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
|
|
{
|
|
return ctx->default_passwd_callback_userdata;
|
|
}
|
|
|
|
void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
|
|
{
|
|
s->default_passwd_callback = cb;
|
|
}
|
|
|
|
void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
|
|
{
|
|
s->default_passwd_callback_userdata = u;
|
|
}
|
|
|
|
pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
|
|
{
|
|
return s->default_passwd_callback;
|
|
}
|
|
|
|
void *SSL_get_default_passwd_cb_userdata(SSL *s)
|
|
{
|
|
return s->default_passwd_callback_userdata;
|
|
}
|
|
|
|
void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
|
|
int (*cb) (X509_STORE_CTX *, void *),
|
|
void *arg)
|
|
{
|
|
ctx->app_verify_callback = cb;
|
|
ctx->app_verify_arg = arg;
|
|
}
|
|
|
|
void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
|
|
int (*cb) (int, X509_STORE_CTX *))
|
|
{
|
|
ctx->verify_mode = mode;
|
|
ctx->default_verify_callback = cb;
|
|
}
|
|
|
|
void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
|
|
{
|
|
X509_VERIFY_PARAM_set_depth(ctx->param, depth);
|
|
}
|
|
|
|
void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg)
|
|
{
|
|
ssl_cert_set_cert_cb(c->cert, cb, arg);
|
|
}
|
|
|
|
void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
|
|
{
|
|
ssl_cert_set_cert_cb(s->cert, cb, arg);
|
|
}
|
|
|
|
void ssl_set_masks(SSL *s)
|
|
{
|
|
CERT *c = s->cert;
|
|
uint32_t *pvalid = s->s3->tmp.valid_flags;
|
|
int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
|
|
unsigned long mask_k, mask_a;
|
|
#ifndef OPENSSL_NO_EC
|
|
int have_ecc_cert, ecdsa_ok;
|
|
#endif
|
|
if (c == NULL)
|
|
return;
|
|
|
|
#ifndef OPENSSL_NO_DH
|
|
dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
|
|
#else
|
|
dh_tmp = 0;
|
|
#endif
|
|
|
|
rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
|
|
rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
|
|
dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID;
|
|
#ifndef OPENSSL_NO_EC
|
|
have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
|
|
#endif
|
|
mask_k = 0;
|
|
mask_a = 0;
|
|
|
|
#ifdef CIPHER_DEBUG
|
|
fprintf(stderr, "dht=%d re=%d rs=%d ds=%d\n",
|
|
dh_tmp, rsa_enc, rsa_sign, dsa_sign);
|
|
#endif
|
|
|
|
#ifndef OPENSSL_NO_GOST
|
|
if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) {
|
|
mask_k |= SSL_kGOST;
|
|
mask_a |= SSL_aGOST12;
|
|
}
|
|
if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) {
|
|
mask_k |= SSL_kGOST;
|
|
mask_a |= SSL_aGOST12;
|
|
}
|
|
if (ssl_has_cert(s, SSL_PKEY_GOST01)) {
|
|
mask_k |= SSL_kGOST;
|
|
mask_a |= SSL_aGOST01;
|
|
}
|
|
#endif
|
|
|
|
if (rsa_enc)
|
|
mask_k |= SSL_kRSA;
|
|
|
|
if (dh_tmp)
|
|
mask_k |= SSL_kDHE;
|
|
|
|
/*
|
|
* If we only have an RSA-PSS certificate allow RSA authentication
|
|
* if TLS 1.2 and peer supports it.
|
|
*/
|
|
|
|
if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN)
|
|
&& pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN
|
|
&& TLS1_get_version(s) == TLS1_2_VERSION))
|
|
mask_a |= SSL_aRSA;
|
|
|
|
if (dsa_sign) {
|
|
mask_a |= SSL_aDSS;
|
|
}
|
|
|
|
mask_a |= SSL_aNULL;
|
|
|
|
/*
|
|
* An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
|
|
* depending on the key usage extension.
|
|
*/
|
|
#ifndef OPENSSL_NO_EC
|
|
if (have_ecc_cert) {
|
|
uint32_t ex_kusage;
|
|
ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509);
|
|
ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
|
|
if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
|
|
ecdsa_ok = 0;
|
|
if (ecdsa_ok)
|
|
mask_a |= SSL_aECDSA;
|
|
}
|
|
/* Allow Ed25519 for TLS 1.2 if peer supports it */
|
|
if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519)
|
|
&& pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN
|
|
&& TLS1_get_version(s) == TLS1_2_VERSION)
|
|
mask_a |= SSL_aECDSA;
|
|
|
|
/* Allow Ed448 for TLS 1.2 if peer supports it */
|
|
if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448)
|
|
&& pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN
|
|
&& TLS1_get_version(s) == TLS1_2_VERSION)
|
|
mask_a |= SSL_aECDSA;
|
|
#endif
|
|
|
|
#ifndef OPENSSL_NO_EC
|
|
mask_k |= SSL_kECDHE;
|
|
#endif
|
|
|
|
#ifndef OPENSSL_NO_PSK
|
|
mask_k |= SSL_kPSK;
|
|
mask_a |= SSL_aPSK;
|
|
if (mask_k & SSL_kRSA)
|
|
mask_k |= SSL_kRSAPSK;
|
|
if (mask_k & SSL_kDHE)
|
|
mask_k |= SSL_kDHEPSK;
|
|
if (mask_k & SSL_kECDHE)
|
|
mask_k |= SSL_kECDHEPSK;
|
|
#endif
|
|
|
|
s->s3->tmp.mask_k = mask_k;
|
|
s->s3->tmp.mask_a = mask_a;
|
|
}
|
|
|
|
#ifndef OPENSSL_NO_EC
|
|
|
|
int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
|
|
{
|
|
if (s->s3->tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
|
|
/* key usage, if present, must allow signing */
|
|
if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
|
|
SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
|
|
SSL_R_ECC_CERT_NOT_FOR_SIGNING);
|
|
return 0;
|
|
}
|
|
}
|
|
return 1; /* all checks are ok */
|
|
}
|
|
|
|
#endif
|
|
|
|
int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
|
|
size_t *serverinfo_length)
|
|
{
|
|
CERT_PKEY *cpk = s->s3->tmp.cert;
|
|
*serverinfo_length = 0;
|
|
|
|
if (cpk == NULL || cpk->serverinfo == NULL)
|
|
return 0;
|
|
|
|
*serverinfo = cpk->serverinfo;
|
|
*serverinfo_length = cpk->serverinfo_length;
|
|
return 1;
|
|
}
|
|
|
|
void ssl_update_cache(SSL *s, int mode)
|
|
{
|
|
int i;
|
|
|
|
/*
|
|
* If the session_id_length is 0, we are not supposed to cache it, and it
|
|
* would be rather hard to do anyway :-)
|
|
*/
|
|
if (s->session->session_id_length == 0)
|
|
return;
|
|
|
|
/*
|
|
* If sid_ctx_length is 0 there is no specific application context
|
|
* associated with this session, so when we try to resume it and
|
|
* SSL_VERIFY_PEER is requested to verify the client identity, we have no
|
|
* indication that this is actually a session for the proper application
|
|
* context, and the *handshake* will fail, not just the resumption attempt.
|
|
* Do not cache (on the server) these sessions that are not resumable
|
|
* (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
|
|
*/
|
|
if (s->server && s->session->sid_ctx_length == 0
|
|
&& (s->verify_mode & SSL_VERIFY_PEER) != 0)
|
|
return;
|
|
|
|
i = s->session_ctx->session_cache_mode;
|
|
if ((i & mode) != 0
|
|
&& (!s->hit || SSL_IS_TLS13(s))) {
|
|
/*
|
|
* Add the session to the internal cache. In server side TLSv1.3 we
|
|
* normally don't do this because by default it's a full stateless ticket
|
|
* with only a dummy session id so there is no reason to cache it,
|
|
* unless:
|
|
* - we are doing early_data, in which case we cache so that we can
|
|
* detect replays
|
|
* - the application has set a remove_session_cb so needs to know about
|
|
* session timeout events
|
|
* - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
|
|
*/
|
|
if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0
|
|
&& (!SSL_IS_TLS13(s)
|
|
|| !s->server
|
|
|| (s->max_early_data > 0
|
|
&& (s->options & SSL_OP_NO_ANTI_REPLAY) == 0)
|
|
|| s->session_ctx->remove_session_cb != NULL
|
|
|| (s->options & SSL_OP_NO_TICKET) != 0))
|
|
SSL_CTX_add_session(s->session_ctx, s->session);
|
|
|
|
/*
|
|
* Add the session to the external cache. We do this even in server side
|
|
* TLSv1.3 without early data because some applications just want to
|
|
* know about the creation of a session and aren't doing a full cache.
|
|
*/
|
|
if (s->session_ctx->new_session_cb != NULL) {
|
|
SSL_SESSION_up_ref(s->session);
|
|
if (!s->session_ctx->new_session_cb(s, s->session))
|
|
SSL_SESSION_free(s->session);
|
|
}
|
|
}
|
|
|
|
/* auto flush every 255 connections */
|
|
if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
|
|
TSAN_QUALIFIER int *stat;
|
|
if (mode & SSL_SESS_CACHE_CLIENT)
|
|
stat = &s->session_ctx->stats.sess_connect_good;
|
|
else
|
|
stat = &s->session_ctx->stats.sess_accept_good;
|
|
if ((tsan_load(stat) & 0xff) == 0xff)
|
|
SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
|
|
}
|
|
}
|
|
|
|
const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx)
|
|
{
|
|
return ctx->method;
|
|
}
|
|
|
|
const SSL_METHOD *SSL_get_ssl_method(const SSL *s)
|
|
{
|
|
return s->method;
|
|
}
|
|
|
|
int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
|
|
{
|
|
int ret = 1;
|
|
|
|
if (s->method != meth) {
|
|
const SSL_METHOD *sm = s->method;
|
|
int (*hf) (SSL *) = s->handshake_func;
|
|
|
|
if (sm->version == meth->version)
|
|
s->method = meth;
|
|
else {
|
|
sm->ssl_free(s);
|
|
s->method = meth;
|
|
ret = s->method->ssl_new(s);
|
|
}
|
|
|
|
if (hf == sm->ssl_connect)
|
|
s->handshake_func = meth->ssl_connect;
|
|
else if (hf == sm->ssl_accept)
|
|
s->handshake_func = meth->ssl_accept;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int SSL_get_error(const SSL *s, int i)
|
|
{
|
|
int reason;
|
|
unsigned long l;
|
|
BIO *bio;
|
|
|
|
if (i > 0)
|
|
return SSL_ERROR_NONE;
|
|
|
|
/*
|
|
* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
|
|
* where we do encode the error
|
|
*/
|
|
if ((l = ERR_peek_error()) != 0) {
|
|
if (ERR_GET_LIB(l) == ERR_LIB_SYS)
|
|
return SSL_ERROR_SYSCALL;
|
|
else
|
|
return SSL_ERROR_SSL;
|
|
}
|
|
|
|
if (SSL_want_read(s)) {
|
|
bio = SSL_get_rbio(s);
|
|
if (BIO_should_read(bio))
|
|
return SSL_ERROR_WANT_READ;
|
|
else if (BIO_should_write(bio))
|
|
/*
|
|
* This one doesn't make too much sense ... We never try to write
|
|
* to the rbio, and an application program where rbio and wbio
|
|
* are separate couldn't even know what it should wait for.
|
|
* However if we ever set s->rwstate incorrectly (so that we have
|
|
* SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
|
|
* wbio *are* the same, this test works around that bug; so it
|
|
* might be safer to keep it.
|
|
*/
|
|
return SSL_ERROR_WANT_WRITE;
|
|
else if (BIO_should_io_special(bio)) {
|
|
reason = BIO_get_retry_reason(bio);
|
|
if (reason == BIO_RR_CONNECT)
|
|
return SSL_ERROR_WANT_CONNECT;
|
|
else if (reason == BIO_RR_ACCEPT)
|
|
return SSL_ERROR_WANT_ACCEPT;
|
|
else
|
|
return SSL_ERROR_SYSCALL; /* unknown */
|
|
}
|
|
}
|
|
|
|
if (SSL_want_write(s)) {
|
|
/* Access wbio directly - in order to use the buffered bio if present */
|
|
bio = s->wbio;
|
|
if (BIO_should_write(bio))
|
|
return SSL_ERROR_WANT_WRITE;
|
|
else if (BIO_should_read(bio))
|
|
/*
|
|
* See above (SSL_want_read(s) with BIO_should_write(bio))
|
|
*/
|
|
return SSL_ERROR_WANT_READ;
|
|
else if (BIO_should_io_special(bio)) {
|
|
reason = BIO_get_retry_reason(bio);
|
|
if (reason == BIO_RR_CONNECT)
|
|
return SSL_ERROR_WANT_CONNECT;
|
|
else if (reason == BIO_RR_ACCEPT)
|
|
return SSL_ERROR_WANT_ACCEPT;
|
|
else
|
|
return SSL_ERROR_SYSCALL;
|
|
}
|
|
}
|
|
if (SSL_want_x509_lookup(s))
|
|
return SSL_ERROR_WANT_X509_LOOKUP;
|
|
if (SSL_want_async(s))
|
|
return SSL_ERROR_WANT_ASYNC;
|
|
if (SSL_want_async_job(s))
|
|
return SSL_ERROR_WANT_ASYNC_JOB;
|
|
if (SSL_want_client_hello_cb(s))
|
|
return SSL_ERROR_WANT_CLIENT_HELLO_CB;
|
|
|
|
if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
|
|
(s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
|
|
return SSL_ERROR_ZERO_RETURN;
|
|
|
|
return SSL_ERROR_SYSCALL;
|
|
}
|
|
|
|
static int ssl_do_handshake_intern(void *vargs)
|
|
{
|
|
struct ssl_async_args *args;
|
|
SSL *s;
|
|
|
|
args = (struct ssl_async_args *)vargs;
|
|
s = args->s;
|
|
|
|
return s->handshake_func(s);
|
|
}
|
|
|
|
int SSL_do_handshake(SSL *s)
|
|
{
|
|
int ret = 1;
|
|
|
|
if (s->handshake_func == NULL) {
|
|
SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
|
|
return -1;
|
|
}
|
|
|
|
ossl_statem_check_finish_init(s, -1);
|
|
|
|
s->method->ssl_renegotiate_check(s, 0);
|
|
|
|
if (SSL_in_init(s) || SSL_in_before(s)) {
|
|
if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
|
|
struct ssl_async_args args;
|
|
|
|
args.s = s;
|
|
|
|
ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
|
|
} else {
|
|
ret = s->handshake_func(s);
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
void SSL_set_accept_state(SSL *s)
|
|
{
|
|
s->server = 1;
|
|
s->shutdown = 0;
|
|
ossl_statem_clear(s);
|
|
s->handshake_func = s->method->ssl_accept;
|
|
clear_ciphers(s);
|
|
}
|
|
|
|
void SSL_set_connect_state(SSL *s)
|
|
{
|
|
s->server = 0;
|
|
s->shutdown = 0;
|
|
ossl_statem_clear(s);
|
|
s->handshake_func = s->method->ssl_connect;
|
|
clear_ciphers(s);
|
|
}
|
|
|
|
int ssl_undefined_function(SSL *s)
|
|
{
|
|
SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
|
|
return 0;
|
|
}
|
|
|
|
int ssl_undefined_void_function(void)
|
|
{
|
|
SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
|
|
ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
|
|
return 0;
|
|
}
|
|
|
|
int ssl_undefined_const_function(const SSL *s)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
const SSL_METHOD *ssl_bad_method(int ver)
|
|
{
|
|
SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
|
|
return NULL;
|
|
}
|
|
|
|
const char *ssl_protocol_to_string(int version)
|
|
{
|
|
switch(version)
|
|
{
|
|
case TLS1_3_VERSION:
|
|
return "TLSv1.3";
|
|
|
|
case TLS1_2_VERSION:
|
|
return "TLSv1.2";
|
|
|
|
case TLS1_1_VERSION:
|
|
return "TLSv1.1";
|
|
|
|
case TLS1_VERSION:
|
|
return "TLSv1";
|
|
|
|
case SSL3_VERSION:
|
|
return "SSLv3";
|
|
|
|
case DTLS1_BAD_VER:
|
|
return "DTLSv0.9";
|
|
|
|
case DTLS1_VERSION:
|
|
return "DTLSv1";
|
|
|
|
case DTLS1_2_VERSION:
|
|
return "DTLSv1.2";
|
|
|
|
default:
|
|
return "unknown";
|
|
}
|
|
}
|
|
|
|
const char *SSL_get_version(const SSL *s)
|
|
{
|
|
return ssl_protocol_to_string(s->version);
|
|
}
|
|
|
|
static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src)
|
|
{
|
|
STACK_OF(X509_NAME) *sk;
|
|
X509_NAME *xn;
|
|
int i;
|
|
|
|
if (src == NULL) {
|
|
*dst = NULL;
|
|
return 1;
|
|
}
|
|
|
|
if ((sk = sk_X509_NAME_new_null()) == NULL)
|
|
return 0;
|
|
for (i = 0; i < sk_X509_NAME_num(src); i++) {
|
|
xn = X509_NAME_dup(sk_X509_NAME_value(src, i));
|
|
if (xn == NULL) {
|
|
sk_X509_NAME_pop_free(sk, X509_NAME_free);
|
|
return 0;
|
|
}
|
|
if (sk_X509_NAME_insert(sk, xn, i) == 0) {
|
|
X509_NAME_free(xn);
|
|
sk_X509_NAME_pop_free(sk, X509_NAME_free);
|
|
return 0;
|
|
}
|
|
}
|
|
*dst = sk;
|
|
|
|
return 1;
|
|
}
|
|
|
|
SSL *SSL_dup(SSL *s)
|
|
{
|
|
SSL *ret;
|
|
int i;
|
|
|
|
/* If we're not quiescent, just up_ref! */
|
|
if (!SSL_in_init(s) || !SSL_in_before(s)) {
|
|
CRYPTO_UP_REF(&s->references, &i, s->lock);
|
|
return s;
|
|
}
|
|
|
|
/*
|
|
* Otherwise, copy configuration state, and session if set.
|
|
*/
|
|
if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
|
|
return NULL;
|
|
|
|
if (s->session != NULL) {
|
|
/*
|
|
* Arranges to share the same session via up_ref. This "copies"
|
|
* session-id, SSL_METHOD, sid_ctx, and 'cert'
|
|
*/
|
|
if (!SSL_copy_session_id(ret, s))
|
|
goto err;
|
|
} else {
|
|
/*
|
|
* No session has been established yet, so we have to expect that
|
|
* s->cert or ret->cert will be changed later -- they should not both
|
|
* point to the same object, and thus we can't use
|
|
* SSL_copy_session_id.
|
|
*/
|
|
if (!SSL_set_ssl_method(ret, s->method))
|
|
goto err;
|
|
|
|
if (s->cert != NULL) {
|
|
ssl_cert_free(ret->cert);
|
|
ret->cert = ssl_cert_dup(s->cert);
|
|
if (ret->cert == NULL)
|
|
goto err;
|
|
}
|
|
|
|
if (!SSL_set_session_id_context(ret, s->sid_ctx,
|
|
(int)s->sid_ctx_length))
|
|
goto err;
|
|
}
|
|
|
|
if (!ssl_dane_dup(ret, s))
|
|
goto err;
|
|
ret->version = s->version;
|
|
ret->options = s->options;
|
|
ret->min_proto_version = s->min_proto_version;
|
|
ret->max_proto_version = s->max_proto_version;
|
|
ret->mode = s->mode;
|
|
SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
|
|
SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
|
|
ret->msg_callback = s->msg_callback;
|
|
ret->msg_callback_arg = s->msg_callback_arg;
|
|
SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
|
|
SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
|
|
ret->generate_session_id = s->generate_session_id;
|
|
|
|
SSL_set_info_callback(ret, SSL_get_info_callback(s));
|
|
|
|
/* copy app data, a little dangerous perhaps */
|
|
if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
|
|
goto err;
|
|
|
|
ret->server = s->server;
|
|
if (s->handshake_func) {
|
|
if (s->server)
|
|
SSL_set_accept_state(ret);
|
|
else
|
|
SSL_set_connect_state(ret);
|
|
}
|
|
ret->shutdown = s->shutdown;
|
|
ret->hit = s->hit;
|
|
|
|
ret->default_passwd_callback = s->default_passwd_callback;
|
|
ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata;
|
|
|
|
X509_VERIFY_PARAM_inherit(ret->param, s->param);
|
|
|
|
/* dup the cipher_list and cipher_list_by_id stacks */
|
|
if (s->cipher_list != NULL) {
|
|
if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
|
|
goto err;
|
|
}
|
|
if (s->cipher_list_by_id != NULL)
|
|
if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
|
|
== NULL)
|
|
goto err;
|
|
|
|
/* Dup the client_CA list */
|
|
if (!dup_ca_names(&ret->ca_names, s->ca_names)
|
|
|| !dup_ca_names(&ret->client_ca_names, s->client_ca_names))
|
|
goto err;
|
|
|
|
return ret;
|
|
|
|
err:
|
|
SSL_free(ret);
|
|
return NULL;
|
|
}
|
|
|
|
void ssl_clear_cipher_ctx(SSL *s)
|
|
{
|
|
if (s->enc_read_ctx != NULL) {
|
|
EVP_CIPHER_CTX_free(s->enc_read_ctx);
|
|
s->enc_read_ctx = NULL;
|
|
}
|
|
if (s->enc_write_ctx != NULL) {
|
|
EVP_CIPHER_CTX_free(s->enc_write_ctx);
|
|
s->enc_write_ctx = NULL;
|
|
}
|
|
#ifndef OPENSSL_NO_COMP
|
|
COMP_CTX_free(s->expand);
|
|
s->expand = NULL;
|
|
COMP_CTX_free(s->compress);
|
|
s->compress = NULL;
|
|
#endif
|
|
}
|
|
|
|
X509 *SSL_get_certificate(const SSL *s)
|
|
{
|
|
if (s->cert != NULL)
|
|
return s->cert->key->x509;
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
EVP_PKEY *SSL_get_privatekey(const SSL *s)
|
|
{
|
|
if (s->cert != NULL)
|
|
return s->cert->key->privatekey;
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
|
|
{
|
|
if (ctx->cert != NULL)
|
|
return ctx->cert->key->x509;
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
|
|
{
|
|
if (ctx->cert != NULL)
|
|
return ctx->cert->key->privatekey;
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
|
|
{
|
|
if ((s->session != NULL) && (s->session->cipher != NULL))
|
|
return s->session->cipher;
|
|
return NULL;
|
|
}
|
|
|
|
const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s)
|
|
{
|
|
return s->s3->tmp.new_cipher;
|
|
}
|
|
|
|
const COMP_METHOD *SSL_get_current_compression(const SSL *s)
|
|
{
|
|
#ifndef OPENSSL_NO_COMP
|
|
return s->compress ? COMP_CTX_get_method(s->compress) : NULL;
|
|
#else
|
|
return NULL;
|
|
#endif
|
|
}
|
|
|
|
const COMP_METHOD *SSL_get_current_expansion(const SSL *s)
|
|
{
|
|
#ifndef OPENSSL_NO_COMP
|
|
return s->expand ? COMP_CTX_get_method(s->expand) : NULL;
|
|
#else
|
|
return NULL;
|
|
#endif
|
|
}
|
|
|
|
int ssl_init_wbio_buffer(SSL *s)
|
|
{
|
|
BIO *bbio;
|
|
|
|
if (s->bbio != NULL) {
|
|
/* Already buffered. */
|
|
return 1;
|
|
}
|
|
|
|
bbio = BIO_new(BIO_f_buffer());
|
|
if (bbio == NULL || !BIO_set_read_buffer_size(bbio, 1)) {
|
|
BIO_free(bbio);
|
|
SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB);
|
|
return 0;
|
|
}
|
|
s->bbio = bbio;
|
|
s->wbio = BIO_push(bbio, s->wbio);
|
|
|
|
return 1;
|
|
}
|
|
|
|
int ssl_free_wbio_buffer(SSL *s)
|
|
{
|
|
/* callers ensure s is never null */
|
|
if (s->bbio == NULL)
|
|
return 1;
|
|
|
|
s->wbio = BIO_pop(s->wbio);
|
|
BIO_free(s->bbio);
|
|
s->bbio = NULL;
|
|
|
|
return 1;
|
|
}
|
|
|
|
void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
|
|
{
|
|
ctx->quiet_shutdown = mode;
|
|
}
|
|
|
|
int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
|
|
{
|
|
return ctx->quiet_shutdown;
|
|
}
|
|
|
|
void SSL_set_quiet_shutdown(SSL *s, int mode)
|
|
{
|
|
s->quiet_shutdown = mode;
|
|
}
|
|
|
|
int SSL_get_quiet_shutdown(const SSL *s)
|
|
{
|
|
return s->quiet_shutdown;
|
|
}
|
|
|
|
void SSL_set_shutdown(SSL *s, int mode)
|
|
{
|
|
s->shutdown = mode;
|
|
}
|
|
|
|
int SSL_get_shutdown(const SSL *s)
|
|
{
|
|
return s->shutdown;
|
|
}
|
|
|
|
int SSL_version(const SSL *s)
|
|
{
|
|
return s->version;
|
|
}
|
|
|
|
int SSL_client_version(const SSL *s)
|
|
{
|
|
return s->client_version;
|
|
}
|
|
|
|
SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
|
|
{
|
|
return ssl->ctx;
|
|
}
|
|
|
|
SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
|
|
{
|
|
CERT *new_cert;
|
|
if (ssl->ctx == ctx)
|
|
return ssl->ctx;
|
|
if (ctx == NULL)
|
|
ctx = ssl->session_ctx;
|
|
new_cert = ssl_cert_dup(ctx->cert);
|
|
if (new_cert == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
if (!custom_exts_copy_flags(&new_cert->custext, &ssl->cert->custext)) {
|
|
ssl_cert_free(new_cert);
|
|
return NULL;
|
|
}
|
|
|
|
ssl_cert_free(ssl->cert);
|
|
ssl->cert = new_cert;
|
|
|
|
/*
|
|
* Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
|
|
* so setter APIs must prevent invalid lengths from entering the system.
|
|
*/
|
|
if (!ossl_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx)))
|
|
return NULL;
|
|
|
|
/*
|
|
* If the session ID context matches that of the parent SSL_CTX,
|
|
* inherit it from the new SSL_CTX as well. If however the context does
|
|
* not match (i.e., it was set per-ssl with SSL_set_session_id_context),
|
|
* leave it unchanged.
|
|
*/
|
|
if ((ssl->ctx != NULL) &&
|
|
(ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
|
|
(memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
|
|
ssl->sid_ctx_length = ctx->sid_ctx_length;
|
|
memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
|
|
}
|
|
|
|
SSL_CTX_up_ref(ctx);
|
|
SSL_CTX_free(ssl->ctx); /* decrement reference count */
|
|
ssl->ctx = ctx;
|
|
|
|
return ssl->ctx;
|
|
}
|
|
|
|
int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
|
|
{
|
|
return X509_STORE_set_default_paths(ctx->cert_store);
|
|
}
|
|
|
|
int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
|
|
{
|
|
X509_LOOKUP *lookup;
|
|
|
|
lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
|
|
if (lookup == NULL)
|
|
return 0;
|
|
X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
|
|
|
|
/* Clear any errors if the default directory does not exist */
|
|
ERR_clear_error();
|
|
|
|
return 1;
|
|
}
|
|
|
|
int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
|
|
{
|
|
X509_LOOKUP *lookup;
|
|
|
|
lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
|
|
if (lookup == NULL)
|
|
return 0;
|
|
|
|
X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
|
|
|
|
/* Clear any errors if the default file does not exist */
|
|
ERR_clear_error();
|
|
|
|
return 1;
|
|
}
|
|
|
|
int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
|
|
const char *CApath)
|
|
{
|
|
return X509_STORE_load_locations(ctx->cert_store, CAfile, CApath);
|
|
}
|
|
|
|
void SSL_set_info_callback(SSL *ssl,
|
|
void (*cb) (const SSL *ssl, int type, int val))
|
|
{
|
|
ssl->info_callback = cb;
|
|
}
|
|
|
|
/*
|
|
* One compiler (Diab DCC) doesn't like argument names in returned function
|
|
* pointer.
|
|
*/
|
|
void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
|
|
int /* type */ ,
|
|
int /* val */ ) {
|
|
return ssl->info_callback;
|
|
}
|
|
|
|
void SSL_set_verify_result(SSL *ssl, long arg)
|
|
{
|
|
ssl->verify_result = arg;
|
|
}
|
|
|
|
long SSL_get_verify_result(const SSL *ssl)
|
|
{
|
|
return ssl->verify_result;
|
|
}
|
|
|
|
size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
|
|
{
|
|
if (outlen == 0)
|
|
return sizeof(ssl->s3->client_random);
|
|
if (outlen > sizeof(ssl->s3->client_random))
|
|
outlen = sizeof(ssl->s3->client_random);
|
|
memcpy(out, ssl->s3->client_random, outlen);
|
|
return outlen;
|
|
}
|
|
|
|
size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
|
|
{
|
|
if (outlen == 0)
|
|
return sizeof(ssl->s3->server_random);
|
|
if (outlen > sizeof(ssl->s3->server_random))
|
|
outlen = sizeof(ssl->s3->server_random);
|
|
memcpy(out, ssl->s3->server_random, outlen);
|
|
return outlen;
|
|
}
|
|
|
|
size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
|
|
unsigned char *out, size_t outlen)
|
|
{
|
|
if (outlen == 0)
|
|
return session->master_key_length;
|
|
if (outlen > session->master_key_length)
|
|
outlen = session->master_key_length;
|
|
memcpy(out, session->master_key, outlen);
|
|
return outlen;
|
|
}
|
|
|
|
int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in,
|
|
size_t len)
|
|
{
|
|
if (len > sizeof(sess->master_key))
|
|
return 0;
|
|
|
|
memcpy(sess->master_key, in, len);
|
|
sess->master_key_length = len;
|
|
return 1;
|
|
}
|
|
|
|
|
|
int SSL_set_ex_data(SSL *s, int idx, void *arg)
|
|
{
|
|
return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
|
|
}
|
|
|
|
void *SSL_get_ex_data(const SSL *s, int idx)
|
|
{
|
|
return CRYPTO_get_ex_data(&s->ex_data, idx);
|
|
}
|
|
|
|
int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
|
|
{
|
|
return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
|
|
}
|
|
|
|
void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
|
|
{
|
|
return CRYPTO_get_ex_data(&s->ex_data, idx);
|
|
}
|
|
|
|
X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
|
|
{
|
|
return ctx->cert_store;
|
|
}
|
|
|
|
void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
|
|
{
|
|
X509_STORE_free(ctx->cert_store);
|
|
ctx->cert_store = store;
|
|
}
|
|
|
|
void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store)
|
|
{
|
|
if (store != NULL)
|
|
X509_STORE_up_ref(store);
|
|
SSL_CTX_set_cert_store(ctx, store);
|
|
}
|
|
|
|
int SSL_want(const SSL *s)
|
|
{
|
|
return s->rwstate;
|
|
}
|
|
|
|
/**
|
|
* \brief Set the callback for generating temporary DH keys.
|
|
* \param ctx the SSL context.
|
|
* \param dh the callback
|
|
*/
|
|
|
|
#ifndef OPENSSL_NO_DH
|
|
void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
|
|
DH *(*dh) (SSL *ssl, int is_export,
|
|
int keylength))
|
|
{
|
|
SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
|
|
}
|
|
|
|
void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
|
|
int keylength))
|
|
{
|
|
SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
|
|
}
|
|
#endif
|
|
|
|
#ifndef OPENSSL_NO_PSK
|
|
int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
|
|
{
|
|
if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
|
|
SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
|
|
return 0;
|
|
}
|
|
OPENSSL_free(ctx->cert->psk_identity_hint);
|
|
if (identity_hint != NULL) {
|
|
ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
|
|
if (ctx->cert->psk_identity_hint == NULL)
|
|
return 0;
|
|
} else
|
|
ctx->cert->psk_identity_hint = NULL;
|
|
return 1;
|
|
}
|
|
|
|
int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
|
|
{
|
|
if (s == NULL)
|
|
return 0;
|
|
|
|
if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
|
|
SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
|
|
return 0;
|
|
}
|
|
OPENSSL_free(s->cert->psk_identity_hint);
|
|
if (identity_hint != NULL) {
|
|
s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
|
|
if (s->cert->psk_identity_hint == NULL)
|
|
return 0;
|
|
} else
|
|
s->cert->psk_identity_hint = NULL;
|
|
return 1;
|
|
}
|
|
|
|
const char *SSL_get_psk_identity_hint(const SSL *s)
|
|
{
|
|
if (s == NULL || s->session == NULL)
|
|
return NULL;
|
|
return s->session->psk_identity_hint;
|
|
}
|
|
|
|
const char *SSL_get_psk_identity(const SSL *s)
|
|
{
|
|
if (s == NULL || s->session == NULL)
|
|
return NULL;
|
|
return s->session->psk_identity;
|
|
}
|
|
|
|
void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb)
|
|
{
|
|
s->psk_client_callback = cb;
|
|
}
|
|
|
|
void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb)
|
|
{
|
|
ctx->psk_client_callback = cb;
|
|
}
|
|
|
|
void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb)
|
|
{
|
|
s->psk_server_callback = cb;
|
|
}
|
|
|
|
void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb)
|
|
{
|
|
ctx->psk_server_callback = cb;
|
|
}
|
|
#endif
|
|
|
|
void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb)
|
|
{
|
|
s->psk_find_session_cb = cb;
|
|
}
|
|
|
|
void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
|
|
SSL_psk_find_session_cb_func cb)
|
|
{
|
|
ctx->psk_find_session_cb = cb;
|
|
}
|
|
|
|
void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb)
|
|
{
|
|
s->psk_use_session_cb = cb;
|
|
}
|
|
|
|
void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
|
|
SSL_psk_use_session_cb_func cb)
|
|
{
|
|
ctx->psk_use_session_cb = cb;
|
|
}
|
|
|
|
void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
|
|
void (*cb) (int write_p, int version,
|
|
int content_type, const void *buf,
|
|
size_t len, SSL *ssl, void *arg))
|
|
{
|
|
SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
|
|
}
|
|
|
|
void SSL_set_msg_callback(SSL *ssl,
|
|
void (*cb) (int write_p, int version,
|
|
int content_type, const void *buf,
|
|
size_t len, SSL *ssl, void *arg))
|
|
{
|
|
SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
|
|
}
|
|
|
|
void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
|
|
int (*cb) (SSL *ssl,
|
|
int
|
|
is_forward_secure))
|
|
{
|
|
SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
|
|
(void (*)(void))cb);
|
|
}
|
|
|
|
void SSL_set_not_resumable_session_callback(SSL *ssl,
|
|
int (*cb) (SSL *ssl,
|
|
int is_forward_secure))
|
|
{
|
|
SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
|
|
(void (*)(void))cb);
|
|
}
|
|
|
|
void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
|
|
size_t (*cb) (SSL *ssl, int type,
|
|
size_t len, void *arg))
|
|
{
|
|
ctx->record_padding_cb = cb;
|
|
}
|
|
|
|
void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg)
|
|
{
|
|
ctx->record_padding_arg = arg;
|
|
}
|
|
|
|
void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx)
|
|
{
|
|
return ctx->record_padding_arg;
|
|
}
|
|
|
|
int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size)
|
|
{
|
|
/* block size of 0 or 1 is basically no padding */
|
|
if (block_size == 1)
|
|
ctx->block_padding = 0;
|
|
else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
|
|
ctx->block_padding = block_size;
|
|
else
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
void SSL_set_record_padding_callback(SSL *ssl,
|
|
size_t (*cb) (SSL *ssl, int type,
|
|
size_t len, void *arg))
|
|
{
|
|
ssl->record_padding_cb = cb;
|
|
}
|
|
|
|
void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg)
|
|
{
|
|
ssl->record_padding_arg = arg;
|
|
}
|
|
|
|
void *SSL_get_record_padding_callback_arg(const SSL *ssl)
|
|
{
|
|
return ssl->record_padding_arg;
|
|
}
|
|
|
|
int SSL_set_block_padding(SSL *ssl, size_t block_size)
|
|
{
|
|
/* block size of 0 or 1 is basically no padding */
|
|
if (block_size == 1)
|
|
ssl->block_padding = 0;
|
|
else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
|
|
ssl->block_padding = block_size;
|
|
else
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
int SSL_set_num_tickets(SSL *s, size_t num_tickets)
|
|
{
|
|
s->num_tickets = num_tickets;
|
|
|
|
return 1;
|
|
}
|
|
|
|
size_t SSL_get_num_tickets(const SSL *s)
|
|
{
|
|
return s->num_tickets;
|
|
}
|
|
|
|
int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets)
|
|
{
|
|
ctx->num_tickets = num_tickets;
|
|
|
|
return 1;
|
|
}
|
|
|
|
size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx)
|
|
{
|
|
return ctx->num_tickets;
|
|
}
|
|
|
|
/*
|
|
* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
|
|
* variable, freeing EVP_MD_CTX previously stored in that variable, if any.
|
|
* If EVP_MD pointer is passed, initializes ctx with this |md|.
|
|
* Returns the newly allocated ctx;
|
|
*/
|
|
|
|
EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
|
|
{
|
|
ssl_clear_hash_ctx(hash);
|
|
*hash = EVP_MD_CTX_new();
|
|
if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) {
|
|
EVP_MD_CTX_free(*hash);
|
|
*hash = NULL;
|
|
return NULL;
|
|
}
|
|
return *hash;
|
|
}
|
|
|
|
void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
|
|
{
|
|
|
|
EVP_MD_CTX_free(*hash);
|
|
*hash = NULL;
|
|
}
|
|
|
|
/* Retrieve handshake hashes */
|
|
int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen,
|
|
size_t *hashlen)
|
|
{
|
|
EVP_MD_CTX *ctx = NULL;
|
|
EVP_MD_CTX *hdgst = s->s3->handshake_dgst;
|
|
int hashleni = EVP_MD_CTX_size(hdgst);
|
|
int ret = 0;
|
|
|
|
if (hashleni < 0 || (size_t)hashleni > outlen) {
|
|
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_HANDSHAKE_HASH,
|
|
ERR_R_INTERNAL_ERROR);
|
|
goto err;
|
|
}
|
|
|
|
ctx = EVP_MD_CTX_new();
|
|
if (ctx == NULL)
|
|
goto err;
|
|
|
|
if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
|
|
|| EVP_DigestFinal_ex(ctx, out, NULL) <= 0) {
|
|
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_HANDSHAKE_HASH,
|
|
ERR_R_INTERNAL_ERROR);
|
|
goto err;
|
|
}
|
|
|
|
*hashlen = hashleni;
|
|
|
|
ret = 1;
|
|
err:
|
|
EVP_MD_CTX_free(ctx);
|
|
return ret;
|
|
}
|
|
|
|
int SSL_session_reused(const SSL *s)
|
|
{
|
|
return s->hit;
|
|
}
|
|
|
|
int SSL_is_server(const SSL *s)
|
|
{
|
|
return s->server;
|
|
}
|
|
|
|
#if OPENSSL_API_COMPAT < 0x10100000L
|
|
void SSL_set_debug(SSL *s, int debug)
|
|
{
|
|
/* Old function was do-nothing anyway... */
|
|
(void)s;
|
|
(void)debug;
|
|
}
|
|
#endif
|
|
|
|
void SSL_set_security_level(SSL *s, int level)
|
|
{
|
|
s->cert->sec_level = level;
|
|
}
|
|
|
|
int SSL_get_security_level(const SSL *s)
|
|
{
|
|
return s->cert->sec_level;
|
|
}
|
|
|
|
void SSL_set_security_callback(SSL *s,
|
|
int (*cb) (const SSL *s, const SSL_CTX *ctx,
|
|
int op, int bits, int nid,
|
|
void *other, void *ex))
|
|
{
|
|
s->cert->sec_cb = cb;
|
|
}
|
|
|
|
int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
|
|
const SSL_CTX *ctx, int op,
|
|
int bits, int nid, void *other,
|
|
void *ex) {
|
|
return s->cert->sec_cb;
|
|
}
|
|
|
|
void SSL_set0_security_ex_data(SSL *s, void *ex)
|
|
{
|
|
s->cert->sec_ex = ex;
|
|
}
|
|
|
|
void *SSL_get0_security_ex_data(const SSL *s)
|
|
{
|
|
return s->cert->sec_ex;
|
|
}
|
|
|
|
void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
|
|
{
|
|
ctx->cert->sec_level = level;
|
|
}
|
|
|
|
int SSL_CTX_get_security_level(const SSL_CTX *ctx)
|
|
{
|
|
return ctx->cert->sec_level;
|
|
}
|
|
|
|
void SSL_CTX_set_security_callback(SSL_CTX *ctx,
|
|
int (*cb) (const SSL *s, const SSL_CTX *ctx,
|
|
int op, int bits, int nid,
|
|
void *other, void *ex))
|
|
{
|
|
ctx->cert->sec_cb = cb;
|
|
}
|
|
|
|
int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
|
|
const SSL_CTX *ctx,
|
|
int op, int bits,
|
|
int nid,
|
|
void *other,
|
|
void *ex) {
|
|
return ctx->cert->sec_cb;
|
|
}
|
|
|
|
void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
|
|
{
|
|
ctx->cert->sec_ex = ex;
|
|
}
|
|
|
|
void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
|
|
{
|
|
return ctx->cert->sec_ex;
|
|
}
|
|
|
|
/*
|
|
* Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
|
|
* can return unsigned long, instead of the generic long return value from the
|
|
* control interface.
|
|
*/
|
|
unsigned long SSL_CTX_get_options(const SSL_CTX *ctx)
|
|
{
|
|
return ctx->options;
|
|
}
|
|
|
|
unsigned long SSL_get_options(const SSL *s)
|
|
{
|
|
return s->options;
|
|
}
|
|
|
|
unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op)
|
|
{
|
|
return ctx->options |= op;
|
|
}
|
|
|
|
unsigned long SSL_set_options(SSL *s, unsigned long op)
|
|
{
|
|
return s->options |= op;
|
|
}
|
|
|
|
unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op)
|
|
{
|
|
return ctx->options &= ~op;
|
|
}
|
|
|
|
unsigned long SSL_clear_options(SSL *s, unsigned long op)
|
|
{
|
|
return s->options &= ~op;
|
|
}
|
|
|
|
STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s)
|
|
{
|
|
return s->verified_chain;
|
|
}
|
|
|
|
IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
|
|
|
|
#ifndef OPENSSL_NO_CT
|
|
|
|
/*
|
|
* Moves SCTs from the |src| stack to the |dst| stack.
|
|
* The source of each SCT will be set to |origin|.
|
|
* If |dst| points to a NULL pointer, a new stack will be created and owned by
|
|
* the caller.
|
|
* Returns the number of SCTs moved, or a negative integer if an error occurs.
|
|
*/
|
|
static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src,
|
|
sct_source_t origin)
|
|
{
|
|
int scts_moved = 0;
|
|
SCT *sct = NULL;
|
|
|
|
if (*dst == NULL) {
|
|
*dst = sk_SCT_new_null();
|
|
if (*dst == NULL) {
|
|
SSLerr(SSL_F_CT_MOVE_SCTS, ERR_R_MALLOC_FAILURE);
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
while ((sct = sk_SCT_pop(src)) != NULL) {
|
|
if (SCT_set_source(sct, origin) != 1)
|
|
goto err;
|
|
|
|
if (sk_SCT_push(*dst, sct) <= 0)
|
|
goto err;
|
|
scts_moved += 1;
|
|
}
|
|
|
|
return scts_moved;
|
|
err:
|
|
if (sct != NULL)
|
|
sk_SCT_push(src, sct); /* Put the SCT back */
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* Look for data collected during ServerHello and parse if found.
|
|
* Returns the number of SCTs extracted.
|
|
*/
|
|
static int ct_extract_tls_extension_scts(SSL *s)
|
|
{
|
|
int scts_extracted = 0;
|
|
|
|
if (s->ext.scts != NULL) {
|
|
const unsigned char *p = s->ext.scts;
|
|
STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len);
|
|
|
|
scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION);
|
|
|
|
SCT_LIST_free(scts);
|
|
}
|
|
|
|
return scts_extracted;
|
|
}
|
|
|
|
/*
|
|
* Checks for an OCSP response and then attempts to extract any SCTs found if it
|
|
* contains an SCT X509 extension. They will be stored in |s->scts|.
|
|
* Returns:
|
|
* - The number of SCTs extracted, assuming an OCSP response exists.
|
|
* - 0 if no OCSP response exists or it contains no SCTs.
|
|
* - A negative integer if an error occurs.
|
|
*/
|
|
static int ct_extract_ocsp_response_scts(SSL *s)
|
|
{
|
|
# ifndef OPENSSL_NO_OCSP
|
|
int scts_extracted = 0;
|
|
const unsigned char *p;
|
|
OCSP_BASICRESP *br = NULL;
|
|
OCSP_RESPONSE *rsp = NULL;
|
|
STACK_OF(SCT) *scts = NULL;
|
|
int i;
|
|
|
|
if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0)
|
|
goto err;
|
|
|
|
p = s->ext.ocsp.resp;
|
|
rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len);
|
|
if (rsp == NULL)
|
|
goto err;
|
|
|
|
br = OCSP_response_get1_basic(rsp);
|
|
if (br == NULL)
|
|
goto err;
|
|
|
|
for (i = 0; i < OCSP_resp_count(br); ++i) {
|
|
OCSP_SINGLERESP *single = OCSP_resp_get0(br, i);
|
|
|
|
if (single == NULL)
|
|
continue;
|
|
|
|
scts =
|
|
OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL);
|
|
scts_extracted =
|
|
ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE);
|
|
if (scts_extracted < 0)
|
|
goto err;
|
|
}
|
|
err:
|
|
SCT_LIST_free(scts);
|
|
OCSP_BASICRESP_free(br);
|
|
OCSP_RESPONSE_free(rsp);
|
|
return scts_extracted;
|
|
# else
|
|
/* Behave as if no OCSP response exists */
|
|
return 0;
|
|
# endif
|
|
}
|
|
|
|
/*
|
|
* Attempts to extract SCTs from the peer certificate.
|
|
* Return the number of SCTs extracted, or a negative integer if an error
|
|
* occurs.
|
|
*/
|
|
static int ct_extract_x509v3_extension_scts(SSL *s)
|
|
{
|
|
int scts_extracted = 0;
|
|
X509 *cert = s->session != NULL ? s->session->peer : NULL;
|
|
|
|
if (cert != NULL) {
|
|
STACK_OF(SCT) *scts =
|
|
X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL);
|
|
|
|
scts_extracted =
|
|
ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION);
|
|
|
|
SCT_LIST_free(scts);
|
|
}
|
|
|
|
return scts_extracted;
|
|
}
|
|
|
|
/*
|
|
* Attempts to find all received SCTs by checking TLS extensions, the OCSP
|
|
* response (if it exists) and X509v3 extensions in the certificate.
|
|
* Returns NULL if an error occurs.
|
|
*/
|
|
const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s)
|
|
{
|
|
if (!s->scts_parsed) {
|
|
if (ct_extract_tls_extension_scts(s) < 0 ||
|
|
ct_extract_ocsp_response_scts(s) < 0 ||
|
|
ct_extract_x509v3_extension_scts(s) < 0)
|
|
goto err;
|
|
|
|
s->scts_parsed = 1;
|
|
}
|
|
return s->scts;
|
|
err:
|
|
return NULL;
|
|
}
|
|
|
|
static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx,
|
|
const STACK_OF(SCT) *scts, void *unused_arg)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
static int ct_strict(const CT_POLICY_EVAL_CTX * ctx,
|
|
const STACK_OF(SCT) *scts, void *unused_arg)
|
|
{
|
|
int count = scts != NULL ? sk_SCT_num(scts) : 0;
|
|
int i;
|
|
|
|
for (i = 0; i < count; ++i) {
|
|
SCT *sct = sk_SCT_value(scts, i);
|
|
int status = SCT_get_validation_status(sct);
|
|
|
|
if (status == SCT_VALIDATION_STATUS_VALID)
|
|
return 1;
|
|
}
|
|
SSLerr(SSL_F_CT_STRICT, SSL_R_NO_VALID_SCTS);
|
|
return 0;
|
|
}
|
|
|
|
int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
|
|
void *arg)
|
|
{
|
|
/*
|
|
* Since code exists that uses the custom extension handler for CT, look
|
|
* for this and throw an error if they have already registered to use CT.
|
|
*/
|
|
if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx,
|
|
TLSEXT_TYPE_signed_certificate_timestamp))
|
|
{
|
|
SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK,
|
|
SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
|
|
return 0;
|
|
}
|
|
|
|
if (callback != NULL) {
|
|
/*
|
|
* If we are validating CT, then we MUST accept SCTs served via OCSP
|
|
*/
|
|
if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp))
|
|
return 0;
|
|
}
|
|
|
|
s->ct_validation_callback = callback;
|
|
s->ct_validation_callback_arg = arg;
|
|
|
|
return 1;
|
|
}
|
|
|
|
int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
|
|
ssl_ct_validation_cb callback, void *arg)
|
|
{
|
|
/*
|
|
* Since code exists that uses the custom extension handler for CT, look for
|
|
* this and throw an error if they have already registered to use CT.
|
|
*/
|
|
if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx,
|
|
TLSEXT_TYPE_signed_certificate_timestamp))
|
|
{
|
|
SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK,
|
|
SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
|
|
return 0;
|
|
}
|
|
|
|
ctx->ct_validation_callback = callback;
|
|
ctx->ct_validation_callback_arg = arg;
|
|
return 1;
|
|
}
|
|
|
|
int SSL_ct_is_enabled(const SSL *s)
|
|
{
|
|
return s->ct_validation_callback != NULL;
|
|
}
|
|
|
|
int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx)
|
|
{
|
|
return ctx->ct_validation_callback != NULL;
|
|
}
|
|
|
|
int ssl_validate_ct(SSL *s)
|
|
{
|
|
int ret = 0;
|
|
X509 *cert = s->session != NULL ? s->session->peer : NULL;
|
|
X509 *issuer;
|
|
SSL_DANE *dane = &s->dane;
|
|
CT_POLICY_EVAL_CTX *ctx = NULL;
|
|
const STACK_OF(SCT) *scts;
|
|
|
|
/*
|
|
* If no callback is set, the peer is anonymous, or its chain is invalid,
|
|
* skip SCT validation - just return success. Applications that continue
|
|
* handshakes without certificates, with unverified chains, or pinned leaf
|
|
* certificates are outside the scope of the WebPKI and CT.
|
|
*
|
|
* The above exclusions notwithstanding the vast majority of peers will
|
|
* have rather ordinary certificate chains validated by typical
|
|
* applications that perform certificate verification and therefore will
|
|
* process SCTs when enabled.
|
|
*/
|
|
if (s->ct_validation_callback == NULL || cert == NULL ||
|
|
s->verify_result != X509_V_OK ||
|
|
s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1)
|
|
return 1;
|
|
|
|
/*
|
|
* CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
|
|
* trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
|
|
*/
|
|
if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) {
|
|
switch (dane->mtlsa->usage) {
|
|
case DANETLS_USAGE_DANE_TA:
|
|
case DANETLS_USAGE_DANE_EE:
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
ctx = CT_POLICY_EVAL_CTX_new();
|
|
if (ctx == NULL) {
|
|
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_VALIDATE_CT,
|
|
ERR_R_MALLOC_FAILURE);
|
|
goto end;
|
|
}
|
|
|
|
issuer = sk_X509_value(s->verified_chain, 1);
|
|
CT_POLICY_EVAL_CTX_set1_cert(ctx, cert);
|
|
CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer);
|
|
CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx, s->ctx->ctlog_store);
|
|
CT_POLICY_EVAL_CTX_set_time(
|
|
ctx, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s)) * 1000);
|
|
|
|
scts = SSL_get0_peer_scts(s);
|
|
|
|
/*
|
|
* This function returns success (> 0) only when all the SCTs are valid, 0
|
|
* when some are invalid, and < 0 on various internal errors (out of
|
|
* memory, etc.). Having some, or even all, invalid SCTs is not sufficient
|
|
* reason to abort the handshake, that decision is up to the callback.
|
|
* Therefore, we error out only in the unexpected case that the return
|
|
* value is negative.
|
|
*
|
|
* XXX: One might well argue that the return value of this function is an
|
|
* unfortunate design choice. Its job is only to determine the validation
|
|
* status of each of the provided SCTs. So long as it correctly separates
|
|
* the wheat from the chaff it should return success. Failure in this case
|
|
* ought to correspond to an inability to carry out its duties.
|
|
*/
|
|
if (SCT_LIST_validate(scts, ctx) < 0) {
|
|
SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_SSL_VALIDATE_CT,
|
|
SSL_R_SCT_VERIFICATION_FAILED);
|
|
goto end;
|
|
}
|
|
|
|
ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg);
|
|
if (ret < 0)
|
|
ret = 0; /* This function returns 0 on failure */
|
|
if (!ret)
|
|
SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_SSL_VALIDATE_CT,
|
|
SSL_R_CALLBACK_FAILED);
|
|
|
|
end:
|
|
CT_POLICY_EVAL_CTX_free(ctx);
|
|
/*
|
|
* With SSL_VERIFY_NONE the session may be cached and re-used despite a
|
|
* failure return code here. Also the application may wish the complete
|
|
* the handshake, and then disconnect cleanly at a higher layer, after
|
|
* checking the verification status of the completed connection.
|
|
*
|
|
* We therefore force a certificate verification failure which will be
|
|
* visible via SSL_get_verify_result() and cached as part of any resumed
|
|
* session.
|
|
*
|
|
* Note: the permissive callback is for information gathering only, always
|
|
* returns success, and does not affect verification status. Only the
|
|
* strict callback or a custom application-specified callback can trigger
|
|
* connection failure or record a verification error.
|
|
*/
|
|
if (ret <= 0)
|
|
s->verify_result = X509_V_ERR_NO_VALID_SCTS;
|
|
return ret;
|
|
}
|
|
|
|
int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode)
|
|
{
|
|
switch (validation_mode) {
|
|
default:
|
|
SSLerr(SSL_F_SSL_CTX_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE);
|
|
return 0;
|
|
case SSL_CT_VALIDATION_PERMISSIVE:
|
|
return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL);
|
|
case SSL_CT_VALIDATION_STRICT:
|
|
return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL);
|
|
}
|
|
}
|
|
|
|
int SSL_enable_ct(SSL *s, int validation_mode)
|
|
{
|
|
switch (validation_mode) {
|
|
default:
|
|
SSLerr(SSL_F_SSL_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE);
|
|
return 0;
|
|
case SSL_CT_VALIDATION_PERMISSIVE:
|
|
return SSL_set_ct_validation_callback(s, ct_permissive, NULL);
|
|
case SSL_CT_VALIDATION_STRICT:
|
|
return SSL_set_ct_validation_callback(s, ct_strict, NULL);
|
|
}
|
|
}
|
|
|
|
int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx)
|
|
{
|
|
return CTLOG_STORE_load_default_file(ctx->ctlog_store);
|
|
}
|
|
|
|
int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
|
|
{
|
|
return CTLOG_STORE_load_file(ctx->ctlog_store, path);
|
|
}
|
|
|
|
void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs)
|
|
{
|
|
CTLOG_STORE_free(ctx->ctlog_store);
|
|
ctx->ctlog_store = logs;
|
|
}
|
|
|
|
const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx)
|
|
{
|
|
return ctx->ctlog_store;
|
|
}
|
|
|
|
#endif /* OPENSSL_NO_CT */
|
|
|
|
void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
|
|
void *arg)
|
|
{
|
|
c->client_hello_cb = cb;
|
|
c->client_hello_cb_arg = arg;
|
|
}
|
|
|
|
int SSL_client_hello_isv2(SSL *s)
|
|
{
|
|
if (s->clienthello == NULL)
|
|
return 0;
|
|
return s->clienthello->isv2;
|
|
}
|
|
|
|
unsigned int SSL_client_hello_get0_legacy_version(SSL *s)
|
|
{
|
|
if (s->clienthello == NULL)
|
|
return 0;
|
|
return s->clienthello->legacy_version;
|
|
}
|
|
|
|
size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out)
|
|
{
|
|
if (s->clienthello == NULL)
|
|
return 0;
|
|
if (out != NULL)
|
|
*out = s->clienthello->random;
|
|
return SSL3_RANDOM_SIZE;
|
|
}
|
|
|
|
size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out)
|
|
{
|
|
if (s->clienthello == NULL)
|
|
return 0;
|
|
if (out != NULL)
|
|
*out = s->clienthello->session_id;
|
|
return s->clienthello->session_id_len;
|
|
}
|
|
|
|
size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out)
|
|
{
|
|
if (s->clienthello == NULL)
|
|
return 0;
|
|
if (out != NULL)
|
|
*out = PACKET_data(&s->clienthello->ciphersuites);
|
|
return PACKET_remaining(&s->clienthello->ciphersuites);
|
|
}
|
|
|
|
size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out)
|
|
{
|
|
if (s->clienthello == NULL)
|
|
return 0;
|
|
if (out != NULL)
|
|
*out = s->clienthello->compressions;
|
|
return s->clienthello->compressions_len;
|
|
}
|
|
|
|
int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen)
|
|
{
|
|
RAW_EXTENSION *ext;
|
|
int *present;
|
|
size_t num = 0, i;
|
|
|
|
if (s->clienthello == NULL || out == NULL || outlen == NULL)
|
|
return 0;
|
|
for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) {
|
|
ext = s->clienthello->pre_proc_exts + i;
|
|
if (ext->present)
|
|
num++;
|
|
}
|
|
if (num == 0) {
|
|
*out = NULL;
|
|
*outlen = 0;
|
|
return 1;
|
|
}
|
|
if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL) {
|
|
SSLerr(SSL_F_SSL_CLIENT_HELLO_GET1_EXTENSIONS_PRESENT,
|
|
ERR_R_MALLOC_FAILURE);
|
|
return 0;
|
|
}
|
|
for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) {
|
|
ext = s->clienthello->pre_proc_exts + i;
|
|
if (ext->present) {
|
|
if (ext->received_order >= num)
|
|
goto err;
|
|
present[ext->received_order] = ext->type;
|
|
}
|
|
}
|
|
*out = present;
|
|
*outlen = num;
|
|
return 1;
|
|
err:
|
|
OPENSSL_free(present);
|
|
return 0;
|
|
}
|
|
|
|
int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out,
|
|
size_t *outlen)
|
|
{
|
|
size_t i;
|
|
RAW_EXTENSION *r;
|
|
|
|
if (s->clienthello == NULL)
|
|
return 0;
|
|
for (i = 0; i < s->clienthello->pre_proc_exts_len; ++i) {
|
|
r = s->clienthello->pre_proc_exts + i;
|
|
if (r->present && r->type == type) {
|
|
if (out != NULL)
|
|
*out = PACKET_data(&r->data);
|
|
if (outlen != NULL)
|
|
*outlen = PACKET_remaining(&r->data);
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int SSL_free_buffers(SSL *ssl)
|
|
{
|
|
RECORD_LAYER *rl = &ssl->rlayer;
|
|
|
|
if (RECORD_LAYER_read_pending(rl) || RECORD_LAYER_write_pending(rl))
|
|
return 0;
|
|
|
|
RECORD_LAYER_release(rl);
|
|
return 1;
|
|
}
|
|
|
|
int SSL_alloc_buffers(SSL *ssl)
|
|
{
|
|
return ssl3_setup_buffers(ssl);
|
|
}
|
|
|
|
void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb)
|
|
{
|
|
ctx->keylog_callback = cb;
|
|
}
|
|
|
|
SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx)
|
|
{
|
|
return ctx->keylog_callback;
|
|
}
|
|
|
|
static int nss_keylog_int(const char *prefix,
|
|
SSL *ssl,
|
|
const uint8_t *parameter_1,
|
|
size_t parameter_1_len,
|
|
const uint8_t *parameter_2,
|
|
size_t parameter_2_len)
|
|
{
|
|
char *out = NULL;
|
|
char *cursor = NULL;
|
|
size_t out_len = 0;
|
|
size_t i;
|
|
size_t prefix_len;
|
|
|
|
if (ssl->ctx->keylog_callback == NULL)
|
|
return 1;
|
|
|
|
/*
|
|
* Our output buffer will contain the following strings, rendered with
|
|
* space characters in between, terminated by a NULL character: first the
|
|
* prefix, then the first parameter, then the second parameter. The
|
|
* meaning of each parameter depends on the specific key material being
|
|
* logged. Note that the first and second parameters are encoded in
|
|
* hexadecimal, so we need a buffer that is twice their lengths.
|
|
*/
|
|
prefix_len = strlen(prefix);
|
|
out_len = prefix_len + (2 * parameter_1_len) + (2 * parameter_2_len) + 3;
|
|
if ((out = cursor = OPENSSL_malloc(out_len)) == NULL) {
|
|
SSLfatal(ssl, SSL_AD_INTERNAL_ERROR, SSL_F_NSS_KEYLOG_INT,
|
|
ERR_R_MALLOC_FAILURE);
|
|
return 0;
|
|
}
|
|
|
|
strcpy(cursor, prefix);
|
|
cursor += prefix_len;
|
|
*cursor++ = ' ';
|
|
|
|
for (i = 0; i < parameter_1_len; i++) {
|
|
sprintf(cursor, "%02x", parameter_1[i]);
|
|
cursor += 2;
|
|
}
|
|
*cursor++ = ' ';
|
|
|
|
for (i = 0; i < parameter_2_len; i++) {
|
|
sprintf(cursor, "%02x", parameter_2[i]);
|
|
cursor += 2;
|
|
}
|
|
*cursor = '\0';
|
|
|
|
ssl->ctx->keylog_callback(ssl, (const char *)out);
|
|
OPENSSL_clear_free(out, out_len);
|
|
return 1;
|
|
|
|
}
|
|
|
|
int ssl_log_rsa_client_key_exchange(SSL *ssl,
|
|
const uint8_t *encrypted_premaster,
|
|
size_t encrypted_premaster_len,
|
|
const uint8_t *premaster,
|
|
size_t premaster_len)
|
|
{
|
|
if (encrypted_premaster_len < 8) {
|
|
SSLfatal(ssl, SSL_AD_INTERNAL_ERROR,
|
|
SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
|
|
return 0;
|
|
}
|
|
|
|
/* We only want the first 8 bytes of the encrypted premaster as a tag. */
|
|
return nss_keylog_int("RSA",
|
|
ssl,
|
|
encrypted_premaster,
|
|
8,
|
|
premaster,
|
|
premaster_len);
|
|
}
|
|
|
|
int ssl_log_secret(SSL *ssl,
|
|
const char *label,
|
|
const uint8_t *secret,
|
|
size_t secret_len)
|
|
{
|
|
return nss_keylog_int(label,
|
|
ssl,
|
|
ssl->s3->client_random,
|
|
SSL3_RANDOM_SIZE,
|
|
secret,
|
|
secret_len);
|
|
}
|
|
|
|
#define SSLV2_CIPHER_LEN 3
|
|
|
|
int ssl_cache_cipherlist(SSL *s, PACKET *cipher_suites, int sslv2format)
|
|
{
|
|
int n;
|
|
|
|
n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
|
|
|
|
if (PACKET_remaining(cipher_suites) == 0) {
|
|
SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_SSL_CACHE_CIPHERLIST,
|
|
SSL_R_NO_CIPHERS_SPECIFIED);
|
|
return 0;
|
|
}
|
|
|
|
if (PACKET_remaining(cipher_suites) % n != 0) {
|
|
SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
|
|
SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
|
|
return 0;
|
|
}
|
|
|
|
OPENSSL_free(s->s3->tmp.ciphers_raw);
|
|
s->s3->tmp.ciphers_raw = NULL;
|
|
s->s3->tmp.ciphers_rawlen = 0;
|
|
|
|
if (sslv2format) {
|
|
size_t numciphers = PACKET_remaining(cipher_suites) / n;
|
|
PACKET sslv2ciphers = *cipher_suites;
|
|
unsigned int leadbyte;
|
|
unsigned char *raw;
|
|
|
|
/*
|
|
* We store the raw ciphers list in SSLv3+ format so we need to do some
|
|
* preprocessing to convert the list first. If there are any SSLv2 only
|
|
* ciphersuites with a non-zero leading byte then we are going to
|
|
* slightly over allocate because we won't store those. But that isn't a
|
|
* problem.
|
|
*/
|
|
raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN);
|
|
s->s3->tmp.ciphers_raw = raw;
|
|
if (raw == NULL) {
|
|
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
|
|
ERR_R_MALLOC_FAILURE);
|
|
return 0;
|
|
}
|
|
for (s->s3->tmp.ciphers_rawlen = 0;
|
|
PACKET_remaining(&sslv2ciphers) > 0;
|
|
raw += TLS_CIPHER_LEN) {
|
|
if (!PACKET_get_1(&sslv2ciphers, &leadbyte)
|
|
|| (leadbyte == 0
|
|
&& !PACKET_copy_bytes(&sslv2ciphers, raw,
|
|
TLS_CIPHER_LEN))
|
|
|| (leadbyte != 0
|
|
&& !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) {
|
|
SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
|
|
SSL_R_BAD_PACKET);
|
|
OPENSSL_free(s->s3->tmp.ciphers_raw);
|
|
s->s3->tmp.ciphers_raw = NULL;
|
|
s->s3->tmp.ciphers_rawlen = 0;
|
|
return 0;
|
|
}
|
|
if (leadbyte == 0)
|
|
s->s3->tmp.ciphers_rawlen += TLS_CIPHER_LEN;
|
|
}
|
|
} else if (!PACKET_memdup(cipher_suites, &s->s3->tmp.ciphers_raw,
|
|
&s->s3->tmp.ciphers_rawlen)) {
|
|
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
|
|
ERR_R_INTERNAL_ERROR);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
|
|
int isv2format, STACK_OF(SSL_CIPHER) **sk,
|
|
STACK_OF(SSL_CIPHER) **scsvs)
|
|
{
|
|
PACKET pkt;
|
|
|
|
if (!PACKET_buf_init(&pkt, bytes, len))
|
|
return 0;
|
|
return bytes_to_cipher_list(s, &pkt, sk, scsvs, isv2format, 0);
|
|
}
|
|
|
|
int bytes_to_cipher_list(SSL *s, PACKET *cipher_suites,
|
|
STACK_OF(SSL_CIPHER) **skp,
|
|
STACK_OF(SSL_CIPHER) **scsvs_out,
|
|
int sslv2format, int fatal)
|
|
{
|
|
const SSL_CIPHER *c;
|
|
STACK_OF(SSL_CIPHER) *sk = NULL;
|
|
STACK_OF(SSL_CIPHER) *scsvs = NULL;
|
|
int n;
|
|
/* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
|
|
unsigned char cipher[SSLV2_CIPHER_LEN];
|
|
|
|
n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
|
|
|
|
if (PACKET_remaining(cipher_suites) == 0) {
|
|
if (fatal)
|
|
SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_BYTES_TO_CIPHER_LIST,
|
|
SSL_R_NO_CIPHERS_SPECIFIED);
|
|
else
|
|
SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_NO_CIPHERS_SPECIFIED);
|
|
return 0;
|
|
}
|
|
|
|
if (PACKET_remaining(cipher_suites) % n != 0) {
|
|
if (fatal)
|
|
SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_BYTES_TO_CIPHER_LIST,
|
|
SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
|
|
else
|
|
SSLerr(SSL_F_BYTES_TO_CIPHER_LIST,
|
|
SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
|
|
return 0;
|
|
}
|
|
|
|
sk = sk_SSL_CIPHER_new_null();
|
|
scsvs = sk_SSL_CIPHER_new_null();
|
|
if (sk == NULL || scsvs == NULL) {
|
|
if (fatal)
|
|
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_BYTES_TO_CIPHER_LIST,
|
|
ERR_R_MALLOC_FAILURE);
|
|
else
|
|
SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
|
|
goto err;
|
|
}
|
|
|
|
while (PACKET_copy_bytes(cipher_suites, cipher, n)) {
|
|
/*
|
|
* SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
|
|
* first byte set to zero, while true SSLv2 ciphers have a non-zero
|
|
* first byte. We don't support any true SSLv2 ciphers, so skip them.
|
|
*/
|
|
if (sslv2format && cipher[0] != '\0')
|
|
continue;
|
|
|
|
/* For SSLv2-compat, ignore leading 0-byte. */
|
|
c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1);
|
|
if (c != NULL) {
|
|
if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) ||
|
|
(!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) {
|
|
if (fatal)
|
|
SSLfatal(s, SSL_AD_INTERNAL_ERROR,
|
|
SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
|
|
else
|
|
SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
|
|
goto err;
|
|
}
|
|
}
|
|
}
|
|
if (PACKET_remaining(cipher_suites) > 0) {
|
|
if (fatal)
|
|
SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_BYTES_TO_CIPHER_LIST,
|
|
SSL_R_BAD_LENGTH);
|
|
else
|
|
SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_BAD_LENGTH);
|
|
goto err;
|
|
}
|
|
|
|
if (skp != NULL)
|
|
*skp = sk;
|
|
else
|
|
sk_SSL_CIPHER_free(sk);
|
|
if (scsvs_out != NULL)
|
|
*scsvs_out = scsvs;
|
|
else
|
|
sk_SSL_CIPHER_free(scsvs);
|
|
return 1;
|
|
err:
|
|
sk_SSL_CIPHER_free(sk);
|
|
sk_SSL_CIPHER_free(scsvs);
|
|
return 0;
|
|
}
|
|
|
|
int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data)
|
|
{
|
|
ctx->max_early_data = max_early_data;
|
|
|
|
return 1;
|
|
}
|
|
|
|
uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx)
|
|
{
|
|
return ctx->max_early_data;
|
|
}
|
|
|
|
int SSL_set_max_early_data(SSL *s, uint32_t max_early_data)
|
|
{
|
|
s->max_early_data = max_early_data;
|
|
|
|
return 1;
|
|
}
|
|
|
|
uint32_t SSL_get_max_early_data(const SSL *s)
|
|
{
|
|
return s->max_early_data;
|
|
}
|
|
|
|
int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data)
|
|
{
|
|
ctx->recv_max_early_data = recv_max_early_data;
|
|
|
|
return 1;
|
|
}
|
|
|
|
uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx)
|
|
{
|
|
return ctx->recv_max_early_data;
|
|
}
|
|
|
|
int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data)
|
|
{
|
|
s->recv_max_early_data = recv_max_early_data;
|
|
|
|
return 1;
|
|
}
|
|
|
|
uint32_t SSL_get_recv_max_early_data(const SSL *s)
|
|
{
|
|
return s->recv_max_early_data;
|
|
}
|
|
|
|
__owur unsigned int ssl_get_max_send_fragment(const SSL *ssl)
|
|
{
|
|
/* Return any active Max Fragment Len extension */
|
|
if (ssl->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(ssl->session))
|
|
return GET_MAX_FRAGMENT_LENGTH(ssl->session);
|
|
|
|
/* return current SSL connection setting */
|
|
return ssl->max_send_fragment;
|
|
}
|
|
|
|
__owur unsigned int ssl_get_split_send_fragment(const SSL *ssl)
|
|
{
|
|
/* Return a value regarding an active Max Fragment Len extension */
|
|
if (ssl->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(ssl->session)
|
|
&& ssl->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(ssl->session))
|
|
return GET_MAX_FRAGMENT_LENGTH(ssl->session);
|
|
|
|
/* else limit |split_send_fragment| to current |max_send_fragment| */
|
|
if (ssl->split_send_fragment > ssl->max_send_fragment)
|
|
return ssl->max_send_fragment;
|
|
|
|
/* return current SSL connection setting */
|
|
return ssl->split_send_fragment;
|
|
}
|
|
|
|
int SSL_stateless(SSL *s)
|
|
{
|
|
int ret;
|
|
|
|
/* Ensure there is no state left over from a previous invocation */
|
|
if (!SSL_clear(s))
|
|
return 0;
|
|
|
|
ERR_clear_error();
|
|
|
|
s->s3->flags |= TLS1_FLAGS_STATELESS;
|
|
ret = SSL_accept(s);
|
|
s->s3->flags &= ~TLS1_FLAGS_STATELESS;
|
|
|
|
if (ret > 0 && s->ext.cookieok)
|
|
return 1;
|
|
|
|
if (s->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(s))
|
|
return 0;
|
|
|
|
return -1;
|
|
}
|
|
|
|
void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val)
|
|
{
|
|
ctx->pha_enabled = val;
|
|
}
|
|
|
|
void SSL_set_post_handshake_auth(SSL *ssl, int val)
|
|
{
|
|
ssl->pha_enabled = val;
|
|
}
|
|
|
|
int SSL_verify_client_post_handshake(SSL *ssl)
|
|
{
|
|
if (!SSL_IS_TLS13(ssl)) {
|
|
SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_WRONG_SSL_VERSION);
|
|
return 0;
|
|
}
|
|
if (!ssl->server) {
|
|
SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_NOT_SERVER);
|
|
return 0;
|
|
}
|
|
|
|
if (!SSL_is_init_finished(ssl)) {
|
|
SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_STILL_IN_INIT);
|
|
return 0;
|
|
}
|
|
|
|
switch (ssl->post_handshake_auth) {
|
|
case SSL_PHA_NONE:
|
|
SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_EXTENSION_NOT_RECEIVED);
|
|
return 0;
|
|
default:
|
|
case SSL_PHA_EXT_SENT:
|
|
SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, ERR_R_INTERNAL_ERROR);
|
|
return 0;
|
|
case SSL_PHA_EXT_RECEIVED:
|
|
break;
|
|
case SSL_PHA_REQUEST_PENDING:
|
|
SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_REQUEST_PENDING);
|
|
return 0;
|
|
case SSL_PHA_REQUESTED:
|
|
SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_REQUEST_SENT);
|
|
return 0;
|
|
}
|
|
|
|
ssl->post_handshake_auth = SSL_PHA_REQUEST_PENDING;
|
|
|
|
/* checks verify_mode and algorithm_auth */
|
|
if (!send_certificate_request(ssl)) {
|
|
ssl->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */
|
|
SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_INVALID_CONFIG);
|
|
return 0;
|
|
}
|
|
|
|
ossl_statem_set_in_init(ssl, 1);
|
|
return 1;
|
|
}
|
|
|
|
int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
|
|
SSL_CTX_generate_session_ticket_fn gen_cb,
|
|
SSL_CTX_decrypt_session_ticket_fn dec_cb,
|
|
void *arg)
|
|
{
|
|
ctx->generate_ticket_cb = gen_cb;
|
|
ctx->decrypt_ticket_cb = dec_cb;
|
|
ctx->ticket_cb_data = arg;
|
|
return 1;
|
|
}
|
|
|
|
void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx,
|
|
SSL_allow_early_data_cb_fn cb,
|
|
void *arg)
|
|
{
|
|
ctx->allow_early_data_cb = cb;
|
|
ctx->allow_early_data_cb_data = arg;
|
|
}
|
|
|
|
void SSL_set_allow_early_data_cb(SSL *s,
|
|
SSL_allow_early_data_cb_fn cb,
|
|
void *arg)
|
|
{
|
|
s->allow_early_data_cb = cb;
|
|
s->allow_early_data_cb_data = arg;
|
|
}
|