From 86c49b31af735796dfde37aa29473a30d36367db Mon Sep 17 00:00:00 2001 From: cvs2svn Date: Sat, 23 Jul 2016 19:31:36 +0000 Subject: This commit was manufactured by cvs2git to create tag 'OPENBSD_6_0_BASE'. --- src/lib/libssl/s3_both.c | 743 ----------------------------------------------- 1 file changed, 743 deletions(-) delete mode 100644 src/lib/libssl/s3_both.c (limited to 'src/lib/libssl/s3_both.c') diff --git a/src/lib/libssl/s3_both.c b/src/lib/libssl/s3_both.c deleted file mode 100644 index cfd0fb9b4b..0000000000 --- a/src/lib/libssl/s3_both.c +++ /dev/null @@ -1,743 +0,0 @@ -/* $OpenBSD: s3_both.c,v 1.48 2015/09/12 15:03:39 jsing Exp $ */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. - * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] - */ -/* ==================================================================== - * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. All advertising materials mentioning features or use of this - * software must display the following acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" - * - * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For written permission, please contact - * openssl-core@openssl.org. - * - * 5. Products derived from this software may not be called "OpenSSL" - * nor may "OpenSSL" appear in their names without prior written - * permission of the OpenSSL Project. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.openssl.org/)" - * - * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY - * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR - * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * ==================================================================== - * - * This product includes cryptographic software written by Eric Young - * (eay@cryptsoft.com). This product includes software written by Tim - * Hudson (tjh@cryptsoft.com). - * - */ -/* ==================================================================== - * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. - * ECC cipher suite support in OpenSSL originally developed by - * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. - */ - -#include -#include -#include - -#include "ssl_locl.h" - -#include -#include -#include -#include - -#include "bytestring.h" - -/* - * Send s->init_buf in records of type 'type' (SSL3_RT_HANDSHAKE or - * SSL3_RT_CHANGE_CIPHER_SPEC). - */ -int -ssl3_do_write(SSL *s, int type) -{ - int ret; - - ret = ssl3_write_bytes(s, type, &s->init_buf->data[s->init_off], - s->init_num); - if (ret < 0) - return (-1); - - if (type == SSL3_RT_HANDSHAKE) - /* - * Should not be done for 'Hello Request's, but in that case - * we'll ignore the result anyway. - */ - tls1_finish_mac(s, - (unsigned char *)&s->init_buf->data[s->init_off], ret); - - if (ret == s->init_num) { - if (s->msg_callback) - s->msg_callback(1, s->version, type, s->init_buf->data, - (size_t)(s->init_off + s->init_num), s, - s->msg_callback_arg); - return (1); - } - - s->init_off += ret; - s->init_num -= ret; - - return (0); -} - -int -ssl3_send_finished(SSL *s, int a, int b, const char *sender, int slen) -{ - unsigned char *p; - int md_len; - - if (s->state == a) { - md_len = s->method->ssl3_enc->finish_mac_length; - OPENSSL_assert(md_len <= EVP_MAX_MD_SIZE); - - if (s->method->ssl3_enc->final_finish_mac(s, sender, slen, - s->s3->tmp.finish_md) != md_len) - return (0); - s->s3->tmp.finish_md_len = md_len; - - /* Copy finished so we can use it for renegotiation checks. */ - if (s->type == SSL_ST_CONNECT) { - memcpy(s->s3->previous_client_finished, - s->s3->tmp.finish_md, md_len); - s->s3->previous_client_finished_len = md_len; - } else { - memcpy(s->s3->previous_server_finished, - s->s3->tmp.finish_md, md_len); - s->s3->previous_server_finished_len = md_len; - } - - p = ssl3_handshake_msg_start(s, SSL3_MT_FINISHED); - memcpy(p, s->s3->tmp.finish_md, md_len); - ssl3_handshake_msg_finish(s, md_len); - - s->state = b; - } - - return (ssl3_handshake_write(s)); -} - -/* - * ssl3_take_mac calculates the Finished MAC for the handshakes messages seen - * so far. - */ -static void -ssl3_take_mac(SSL *s) -{ - const char *sender; - int slen; - - /* - * If no new cipher setup return immediately: other functions will - * set the appropriate error. - */ - if (s->s3->tmp.new_cipher == NULL) - return; - - if (s->state & SSL_ST_CONNECT) { - sender = s->method->ssl3_enc->server_finished_label; - slen = s->method->ssl3_enc->server_finished_label_len; - } else { - sender = s->method->ssl3_enc->client_finished_label; - slen = s->method->ssl3_enc->client_finished_label_len; - } - - s->s3->tmp.peer_finish_md_len = - s->method->ssl3_enc->final_finish_mac(s, sender, slen, - s->s3->tmp.peer_finish_md); -} - -int -ssl3_get_finished(SSL *s, int a, int b) -{ - int al, ok, md_len; - long n; - CBS cbs; - - /* should actually be 36+4 :-) */ - n = s->method->ssl_get_message(s, a, b, SSL3_MT_FINISHED, 64, &ok); - if (!ok) - return ((int)n); - - /* If this occurs, we have missed a message */ - if (!s->s3->change_cipher_spec) { - al = SSL_AD_UNEXPECTED_MESSAGE; - SSLerr(SSL_F_SSL3_GET_FINISHED, SSL_R_GOT_A_FIN_BEFORE_A_CCS); - goto f_err; - } - s->s3->change_cipher_spec = 0; - - md_len = s->method->ssl3_enc->finish_mac_length; - - if (n < 0) { - al = SSL_AD_DECODE_ERROR; - SSLerr(SSL_F_SSL3_GET_FINISHED, SSL_R_BAD_DIGEST_LENGTH); - goto f_err; - } - - CBS_init(&cbs, s->init_msg, n); - - if (s->s3->tmp.peer_finish_md_len != md_len || - CBS_len(&cbs) != md_len) { - al = SSL_AD_DECODE_ERROR; - SSLerr(SSL_F_SSL3_GET_FINISHED, SSL_R_BAD_DIGEST_LENGTH); - goto f_err; - } - - if (!CBS_mem_equal(&cbs, s->s3->tmp.peer_finish_md, CBS_len(&cbs))) { - al = SSL_AD_DECRYPT_ERROR; - SSLerr(SSL_F_SSL3_GET_FINISHED, SSL_R_DIGEST_CHECK_FAILED); - goto f_err; - } - - /* Copy finished so we can use it for renegotiation checks. */ - OPENSSL_assert(md_len <= EVP_MAX_MD_SIZE); - if (s->type == SSL_ST_ACCEPT) { - memcpy(s->s3->previous_client_finished, - s->s3->tmp.peer_finish_md, md_len); - s->s3->previous_client_finished_len = md_len; - } else { - memcpy(s->s3->previous_server_finished, - s->s3->tmp.peer_finish_md, md_len); - s->s3->previous_server_finished_len = md_len; - } - - return (1); -f_err: - ssl3_send_alert(s, SSL3_AL_FATAL, al); - return (0); -} - -/* for these 2 messages, we need to - * ssl->enc_read_ctx re-init - * ssl->s3->read_sequence zero - * ssl->s3->read_mac_secret re-init - * ssl->session->read_sym_enc assign - * ssl->session->read_hash assign - */ -int -ssl3_send_change_cipher_spec(SSL *s, int a, int b) -{ - unsigned char *p; - - if (s->state == a) { - p = (unsigned char *)s->init_buf->data; - *p = SSL3_MT_CCS; - s->init_num = 1; - s->init_off = 0; - - s->state = b; - } - - /* SSL3_ST_CW_CHANGE_B */ - return (ssl3_do_write(s, SSL3_RT_CHANGE_CIPHER_SPEC)); -} - -static int -ssl3_add_cert_to_buf(BUF_MEM *buf, unsigned long *l, X509 *x) -{ - int n; - unsigned char *p; - - n = i2d_X509(x, NULL); - if (!BUF_MEM_grow_clean(buf, n + (*l) + 3)) { - SSLerr(SSL_F_SSL3_ADD_CERT_TO_BUF, ERR_R_BUF_LIB); - return (-1); - } - /* XXX */ - p = (unsigned char *)&(buf->data[*l]); - l2n3(n, p); - i2d_X509(x, &p); - *l += n + 3; - - return (0); -} - -unsigned long -ssl3_output_cert_chain(SSL *s, X509 *x) -{ - unsigned char *p; - unsigned long l = ssl3_handshake_msg_hdr_len(s) + 3; - BUF_MEM *buf; - int no_chain; - int i; - - if ((s->mode & SSL_MODE_NO_AUTO_CHAIN) || s->ctx->extra_certs) - no_chain = 1; - else - no_chain = 0; - - /* TLSv1 sends a chain with nothing in it, instead of an alert */ - buf = s->init_buf; - if (!BUF_MEM_grow_clean(buf, ssl3_handshake_msg_hdr_len(s) + 6)) { - SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN, ERR_R_BUF_LIB); - return (0); - } - if (x != NULL) { - if (no_chain) { - if (ssl3_add_cert_to_buf(buf, &l, x)) - return (0); - } else { - X509_STORE_CTX xs_ctx; - - if (!X509_STORE_CTX_init(&xs_ctx, s->ctx->cert_store, - x, NULL)) { - SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN, - ERR_R_X509_LIB); - return (0); - } - X509_verify_cert(&xs_ctx); - - /* Don't leave errors in the queue. */ - ERR_clear_error(); - for (i = 0; i < sk_X509_num(xs_ctx.chain); i++) { - x = sk_X509_value(xs_ctx.chain, i); - if (ssl3_add_cert_to_buf(buf, &l, x)) { - X509_STORE_CTX_cleanup(&xs_ctx); - return 0; - } - } - X509_STORE_CTX_cleanup(&xs_ctx); - } - } - /* Thawte special :-) */ - for (i = 0; i < sk_X509_num(s->ctx->extra_certs); i++) { - x = sk_X509_value(s->ctx->extra_certs, i); - if (ssl3_add_cert_to_buf(buf, &l, x)) - return (0); - } - - l -= ssl3_handshake_msg_hdr_len(s) + 3; - p = (unsigned char *)&(buf->data[4]); - l2n3(l, p); - l += 3; - p = (unsigned char *)&(buf->data[0]); - *(p++) = SSL3_MT_CERTIFICATE; - l2n3(l, p); - l += 4; /* XXX */ - return (l); -} - -/* - * Obtain handshake message of message type 'mt' (any if mt == -1), - * maximum acceptable body length 'max'. - * The first four bytes (msg_type and length) are read in state 'st1', - * the body is read in state 'stn'. - */ -long -ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok) -{ - unsigned char *p; - uint32_t l; - long n; - int i, al; - CBS cbs; - uint8_t u8; - - if (s->s3->tmp.reuse_message) { - s->s3->tmp.reuse_message = 0; - if ((mt >= 0) && (s->s3->tmp.message_type != mt)) { - al = SSL_AD_UNEXPECTED_MESSAGE; - SSLerr(SSL_F_SSL3_GET_MESSAGE, - SSL_R_UNEXPECTED_MESSAGE); - goto f_err; - } - *ok = 1; - s->init_msg = s->init_buf->data + 4; - s->init_num = (int)s->s3->tmp.message_size; - return s->init_num; - } - - p = (unsigned char *)s->init_buf->data; - - /* s->init_num < 4 */ - if (s->state == st1) { - int skip_message; - - do { - while (s->init_num < 4) { - i = s->method->ssl_read_bytes(s, - SSL3_RT_HANDSHAKE, &p[s->init_num], - 4 - s->init_num, 0); - if (i <= 0) { - s->rwstate = SSL_READING; - *ok = 0; - return i; - } - s->init_num += i; - } - - skip_message = 0; - if (!s->server && p[0] == SSL3_MT_HELLO_REQUEST) { - /* - * The server may always send 'Hello Request' - * messages -- we are doing a handshake anyway - * now, so ignore them if their format is - * correct. Does not count for 'Finished' MAC. - */ - if (p[1] == 0 && p[2] == 0 &&p[3] == 0) { - s->init_num = 0; - skip_message = 1; - - if (s->msg_callback) - s->msg_callback(0, s->version, - SSL3_RT_HANDSHAKE, p, 4, s, - s->msg_callback_arg); - } - } - } while (skip_message); - - /* s->init_num == 4 */ - - if ((mt >= 0) && (*p != mt)) { - al = SSL_AD_UNEXPECTED_MESSAGE; - SSLerr(SSL_F_SSL3_GET_MESSAGE, - SSL_R_UNEXPECTED_MESSAGE); - goto f_err; - } - - /* XXX remove call to n2l3 */ - CBS_init(&cbs, p, 4); - if (!CBS_get_u8(&cbs, &u8) || - !CBS_get_u24(&cbs, &l)) { - SSLerr(SSL_F_SSL3_GET_MESSAGE, ERR_R_BUF_LIB); - goto err; - } - s->s3->tmp.message_type = u8; - - if (l > (unsigned long)max) { - al = SSL_AD_ILLEGAL_PARAMETER; - SSLerr(SSL_F_SSL3_GET_MESSAGE, - SSL_R_EXCESSIVE_MESSAGE_SIZE); - goto f_err; - } - if (l && !BUF_MEM_grow_clean(s->init_buf, l + 4)) { - SSLerr(SSL_F_SSL3_GET_MESSAGE, ERR_R_BUF_LIB); - goto err; - } - s->s3->tmp.message_size = l; - s->state = stn; - - s->init_msg = s->init_buf->data + 4; - s->init_num = 0; - } - - /* next state (stn) */ - p = s->init_msg; - n = s->s3->tmp.message_size - s->init_num; - while (n > 0) { - i = s->method->ssl_read_bytes(s, SSL3_RT_HANDSHAKE, - &p[s->init_num], n, 0); - if (i <= 0) { - s->rwstate = SSL_READING; - *ok = 0; - return i; - } - s->init_num += i; - n -= i; - } - - /* If receiving Finished, record MAC of prior handshake messages for - * Finished verification. */ - if (*s->init_buf->data == SSL3_MT_FINISHED) - ssl3_take_mac(s); - - /* Feed this message into MAC computation. */ - tls1_finish_mac(s, (unsigned char *)s->init_buf->data, s->init_num + 4); - if (s->msg_callback) - s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, - s->init_buf->data, (size_t)s->init_num + 4, s, - s->msg_callback_arg); - - *ok = 1; - return (s->init_num); - -f_err: - ssl3_send_alert(s, SSL3_AL_FATAL, al); -err: - *ok = 0; - return (-1); -} - -int -ssl_cert_type(X509 *x, EVP_PKEY *pkey) -{ - EVP_PKEY *pk; - int ret = -1, i; - - if (pkey == NULL) - pk = X509_get_pubkey(x); - else - pk = pkey; - if (pk == NULL) - goto err; - - i = pk->type; - if (i == EVP_PKEY_RSA) { - ret = SSL_PKEY_RSA_ENC; - } else if (i == EVP_PKEY_DSA) { - ret = SSL_PKEY_DSA_SIGN; - } else if (i == EVP_PKEY_EC) { - ret = SSL_PKEY_ECC; - } else if (i == NID_id_GostR3410_2001 || - i == NID_id_GostR3410_2001_cc) { - ret = SSL_PKEY_GOST01; - } - -err: - if (!pkey) - EVP_PKEY_free(pk); - return (ret); -} - -int -ssl_verify_alarm_type(long type) -{ - int al; - - switch (type) { - case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT: - case X509_V_ERR_UNABLE_TO_GET_CRL: - case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER: - al = SSL_AD_UNKNOWN_CA; - break; - case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE: - case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE: - case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY: - case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD: - case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD: - case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD: - case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD: - case X509_V_ERR_CERT_NOT_YET_VALID: - case X509_V_ERR_CRL_NOT_YET_VALID: - case X509_V_ERR_CERT_UNTRUSTED: - case X509_V_ERR_CERT_REJECTED: - al = SSL_AD_BAD_CERTIFICATE; - break; - case X509_V_ERR_CERT_SIGNATURE_FAILURE: - case X509_V_ERR_CRL_SIGNATURE_FAILURE: - al = SSL_AD_DECRYPT_ERROR; - break; - case X509_V_ERR_CERT_HAS_EXPIRED: - case X509_V_ERR_CRL_HAS_EXPIRED: - al = SSL_AD_CERTIFICATE_EXPIRED; - break; - case X509_V_ERR_CERT_REVOKED: - al = SSL_AD_CERTIFICATE_REVOKED; - break; - case X509_V_ERR_OUT_OF_MEM: - al = SSL_AD_INTERNAL_ERROR; - break; - case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT: - case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN: - case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY: - case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE: - case X509_V_ERR_CERT_CHAIN_TOO_LONG: - case X509_V_ERR_PATH_LENGTH_EXCEEDED: - case X509_V_ERR_INVALID_CA: - al = SSL_AD_UNKNOWN_CA; - break; - case X509_V_ERR_APPLICATION_VERIFICATION: - al = SSL_AD_HANDSHAKE_FAILURE; - break; - case X509_V_ERR_INVALID_PURPOSE: - al = SSL_AD_UNSUPPORTED_CERTIFICATE; - break; - default: - al = SSL_AD_CERTIFICATE_UNKNOWN; - break; - } - return (al); -} - -int -ssl3_setup_init_buffer(SSL *s) -{ - BUF_MEM *buf = NULL; - - if (s->init_buf != NULL) - return (1); - - if ((buf = BUF_MEM_new()) == NULL) - goto err; - if (!BUF_MEM_grow(buf, SSL3_RT_MAX_PLAIN_LENGTH)) - goto err; - - s->init_buf = buf; - return (1); - -err: - BUF_MEM_free(buf); - return (0); -} - -int -ssl3_setup_read_buffer(SSL *s) -{ - unsigned char *p; - size_t len, align, headerlen; - - if (SSL_IS_DTLS(s)) - headerlen = DTLS1_RT_HEADER_LENGTH; - else - headerlen = SSL3_RT_HEADER_LENGTH; - - align = (-SSL3_RT_HEADER_LENGTH) & (SSL3_ALIGN_PAYLOAD - 1); - - if (s->s3->rbuf.buf == NULL) { - len = SSL3_RT_MAX_PLAIN_LENGTH + - SSL3_RT_MAX_ENCRYPTED_OVERHEAD + headerlen + align; - if ((p = malloc(len)) == NULL) - goto err; - s->s3->rbuf.buf = p; - s->s3->rbuf.len = len; - } - - s->packet = &(s->s3->rbuf.buf[0]); - return 1; - -err: - SSLerr(SSL_F_SSL3_SETUP_READ_BUFFER, ERR_R_MALLOC_FAILURE); - return 0; -} - -int -ssl3_setup_write_buffer(SSL *s) -{ - unsigned char *p; - size_t len, align, headerlen; - - if (SSL_IS_DTLS(s)) - headerlen = DTLS1_RT_HEADER_LENGTH + 1; - else - headerlen = SSL3_RT_HEADER_LENGTH; - - align = (-SSL3_RT_HEADER_LENGTH) & (SSL3_ALIGN_PAYLOAD - 1); - - if (s->s3->wbuf.buf == NULL) { - len = s->max_send_fragment + - SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD + headerlen + align; - if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS)) - len += headerlen + align + - SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD; - - if ((p = malloc(len)) == NULL) - goto err; - s->s3->wbuf.buf = p; - s->s3->wbuf.len = len; - } - - return 1; - -err: - SSLerr(SSL_F_SSL3_SETUP_WRITE_BUFFER, ERR_R_MALLOC_FAILURE); - return 0; -} - -int -ssl3_setup_buffers(SSL *s) -{ - if (!ssl3_setup_read_buffer(s)) - return 0; - if (!ssl3_setup_write_buffer(s)) - return 0; - return 1; -} - -int -ssl3_release_write_buffer(SSL *s) -{ - free(s->s3->wbuf.buf); - s->s3->wbuf.buf = NULL; - return 1; -} - -int -ssl3_release_read_buffer(SSL *s) -{ - free(s->s3->rbuf.buf); - s->s3->rbuf.buf = NULL; - return 1; -} -- cgit v1.2.3-55-g6feb