openssl/ssl/d1_srvr.c - Issue 2072073002: Delete bundled copy of OpenSSL and replace with README.

Unified Diff: openssl/ssl/d1_srvr.c

Issue 2072073002: Delete bundled copy of OpenSSL and replace with README. (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master

Patch Set: Delete bundled copy of OpenSSL and replace with README. Created 4 years, 6 months ago

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Index: openssl/ssl/d1_srvr.c

diff --git a/openssl/ssl/d1_srvr.c b/openssl/ssl/d1_srvr.c

deleted file mode 100644

index 014ef52bbb25aa4c688503e6d4f2df0e7c0830d2..0000000000000000000000000000000000000000

--- a/openssl/ssl/d1_srvr.c

+++ /dev/null

@@ -1,1712 +0,0 @@

-/* ssl/d1_srvr.c */

-/*

- * DTLS implementation written by Nagendra Modadugu

- * (nagendra@cs.stanford.edu) for the OpenSSL project 2005.

- */

-/* ====================================================================

- *

- * 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).

- *

- */

- *

- * 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.]

- */

-#include <stdio.h>

-#include "ssl_locl.h"

-#include <openssl/buffer.h>

-#include <openssl/rand.h>

-#include <openssl/objects.h>

-#include <openssl/evp.h>

-#include <openssl/x509.h>

-#include <openssl/md5.h>

-#include <openssl/bn.h>

-#ifndef OPENSSL_NO_DH

-#include <openssl/dh.h>

-#endif

-static const SSL_METHOD *dtls1_get_server_method(int ver);

-static int dtls1_send_hello_verify_request(SSL *s);

-static const SSL_METHOD *dtls1_get_server_method(int ver)

- {

- if (ver == DTLS1_VERSION)

- return(DTLSv1_server_method());

- else

- return(NULL);

- }

-IMPLEMENT_dtls1_meth_func(DTLSv1_server_method,

- dtls1_accept,

- ssl_undefined_function,

- dtls1_get_server_method)

-int dtls1_accept(SSL *s)

- {

- BUF_MEM *buf;

- unsigned long Time=(unsigned long)time(NULL);

- void (*cb)(const SSL *ssl,int type,int val)=NULL;

- unsigned long alg_k;

- int ret= -1;

- int new_state,state,skip=0;

- int listen;

-#ifndef OPENSSL_NO_SCTP

- unsigned char sctpauthkey[64];

- char labelbuffer[sizeof(DTLS1_SCTP_AUTH_LABEL)];

-#endif

- RAND_add(&Time,sizeof(Time),0);

- ERR_clear_error();

- clear_sys_error();

- if (s->info_callback != NULL)

- cb=s->info_callback;

- else if (s->ctx->info_callback != NULL)

- cb=s->ctx->info_callback;

- listen = s->d1->listen;

- /* init things to blank */

- s->in_handshake++;

- if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);

- s->d1->listen = listen;

-#ifndef OPENSSL_NO_SCTP

- /* Notify SCTP BIO socket to enter handshake

- * mode and prevent stream identifier other

- * than 0. Will be ignored if no SCTP is used.

- */

- BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE, s->in_handshake, NULL);

-#endif

- if (s->cert == NULL)

- {

- SSLerr(SSL_F_DTLS1_ACCEPT,SSL_R_NO_CERTIFICATE_SET);

- return(-1);

- }

-#ifndef OPENSSL_NO_HEARTBEATS

- /* If we're awaiting a HeartbeatResponse, pretend we

- * already got and don't await it anymore, because

- * Heartbeats don't make sense during handshakes anyway.

- */

- if (s->tlsext_hb_pending)

- {

- dtls1_stop_timer(s);

- s->tlsext_hb_pending = 0;

- s->tlsext_hb_seq++;

- }

-#endif

- for (;;)

- {

- state=s->state;

- switch (s->state)

- {

- case SSL_ST_RENEGOTIATE:

- s->renegotiate=1;

- /* s->state=SSL_ST_ACCEPT; */

- case SSL_ST_BEFORE:

- case SSL_ST_ACCEPT:

- case SSL_ST_BEFORE|SSL_ST_ACCEPT:

- case SSL_ST_OK|SSL_ST_ACCEPT:

- s->server=1;

- if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);

- if ((s->version & 0xff00) != (DTLS1_VERSION & 0xff00))

- {

- SSLerr(SSL_F_DTLS1_ACCEPT, ERR_R_INTERNAL_ERROR);

- return -1;

- }

- s->type=SSL_ST_ACCEPT;

- if (s->init_buf == NULL)

- {

- if ((buf=BUF_MEM_new()) == NULL)

- {

- ret= -1;

- goto end;

- }

- if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))

- {

- ret= -1;

- goto end;

- }

- s->init_buf=buf;

- }

- if (!ssl3_setup_buffers(s))

- {

- ret= -1;

- goto end;

- }

- s->init_num=0;

- if (s->state != SSL_ST_RENEGOTIATE)

- {

- /* Ok, we now need to push on a buffering BIO so that

- * the output is sent in a way that TCP likes :-)

- * ...but not with SCTP :-)

- */

-#ifndef OPENSSL_NO_SCTP

- if (!BIO_dgram_is_sctp(SSL_get_wbio(s)))

-#endif

- if (!ssl_init_wbio_buffer(s,1)) { ret= -1; goto end; }

- ssl3_init_finished_mac(s);

- s->state=SSL3_ST_SR_CLNT_HELLO_A;

- s->ctx->stats.sess_accept++;

- }

- else

- {

- /* s->state == SSL_ST_RENEGOTIATE,

- * we will just send a HelloRequest */

- s->ctx->stats.sess_accept_renegotiate++;

- s->state=SSL3_ST_SW_HELLO_REQ_A;

- }

- break;

- case SSL3_ST_SW_HELLO_REQ_A:

- case SSL3_ST_SW_HELLO_REQ_B:

- s->shutdown=0;

- dtls1_start_timer(s);

- ret=dtls1_send_hello_request(s);

- if (ret <= 0) goto end;

- s->s3->tmp.next_state=SSL3_ST_SW_HELLO_REQ_C;

- s->state=SSL3_ST_SW_FLUSH;

- s->init_num=0;

- ssl3_init_finished_mac(s);

- break;

- case SSL3_ST_SW_HELLO_REQ_C:

- s->state=SSL_ST_OK;

- break;

- case SSL3_ST_SR_CLNT_HELLO_A:

- case SSL3_ST_SR_CLNT_HELLO_B:

- case SSL3_ST_SR_CLNT_HELLO_C:

- s->shutdown=0;

- ret=ssl3_get_client_hello(s);

- if (ret <= 0) goto end;

- dtls1_stop_timer(s);

- if (ret == 1 && (SSL_get_options(s) & SSL_OP_COOKIE_EXCHANGE))

- s->state = DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A;

- else

- s->state = SSL3_ST_SW_SRVR_HELLO_A;

- s->init_num=0;

- /* Reflect ClientHello sequence to remain stateless while listening */

- if (listen)

- {

- memcpy(s->s3->write_sequence, s->s3->read_sequence, sizeof(s->s3->write_sequence));

- }

- /* If we're just listening, stop here */

- if (listen && s->state == SSL3_ST_SW_SRVR_HELLO_A)

- {

- ret = 2;

- s->d1->listen = 0;

- /* Set expected sequence numbers

- * to continue the handshake.

- */

- s->d1->handshake_read_seq = 2;

- s->d1->handshake_write_seq = 1;

- s->d1->next_handshake_write_seq = 1;

- goto end;

- }

- break;

- case DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A:

- case DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B:

- ret = dtls1_send_hello_verify_request(s);

- if ( ret <= 0) goto end;

- s->state=SSL3_ST_SW_FLUSH;

- s->s3->tmp.next_state=SSL3_ST_SR_CLNT_HELLO_A;

- /* HelloVerifyRequest resets Finished MAC */

- if (s->version != DTLS1_BAD_VER)

- ssl3_init_finished_mac(s);

- break;

-#ifndef OPENSSL_NO_SCTP

- case DTLS1_SCTP_ST_SR_READ_SOCK:

- if (BIO_dgram_sctp_msg_waiting(SSL_get_rbio(s)))

- {

- s->s3->in_read_app_data=2;

- s->rwstate=SSL_READING;

- BIO_clear_retry_flags(SSL_get_rbio(s));

- BIO_set_retry_read(SSL_get_rbio(s));

- ret = -1;

- goto end;

- }

- s->state=SSL3_ST_SR_FINISHED_A;

- break;

- case DTLS1_SCTP_ST_SW_WRITE_SOCK:

- ret = BIO_dgram_sctp_wait_for_dry(SSL_get_wbio(s));

- if (ret < 0) goto end;

- if (ret == 0)

- {

- if (s->d1->next_state != SSL_ST_OK)

- {

- s->s3->in_read_app_data=2;

- s->rwstate=SSL_READING;

- BIO_clear_retry_flags(SSL_get_rbio(s));

- BIO_set_retry_read(SSL_get_rbio(s));

- ret = -1;

- goto end;

- }

- s->state=s->d1->next_state;

- break;

-#endif

- case SSL3_ST_SW_SRVR_HELLO_A:

- case SSL3_ST_SW_SRVR_HELLO_B:

- s->renegotiate = 2;

- dtls1_start_timer(s);

- ret=dtls1_send_server_hello(s);

- if (ret <= 0) goto end;

- if (s->hit)

- {

-#ifndef OPENSSL_NO_SCTP

- /* Add new shared key for SCTP-Auth,

- * will be ignored if no SCTP used.

- */

- snprintf((char*) labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL),

- DTLS1_SCTP_AUTH_LABEL);

- SSL_export_keying_material(s, sctpauthkey,

- sizeof(sctpauthkey), labelbuffer,

- sizeof(labelbuffer), NULL, 0, 0);

- BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY,

- sizeof(sctpauthkey), sctpauthkey);

-#endif

-#ifndef OPENSSL_NO_TLSEXT

- if (s->tlsext_ticket_expected)

- s->state=SSL3_ST_SW_SESSION_TICKET_A;

- else

- s->state=SSL3_ST_SW_CHANGE_A;

-#else

- s->state=SSL3_ST_SW_CHANGE_A;

-#endif

- }

- else

- s->state=SSL3_ST_SW_CERT_A;

- s->init_num=0;

- break;

- case SSL3_ST_SW_CERT_A:

- case SSL3_ST_SW_CERT_B:

- /* Check if it is anon DH or normal PSK */

- if (!(s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL)

- && !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK))

- {

- dtls1_start_timer(s);

- ret=dtls1_send_server_certificate(s);

- if (ret <= 0) goto end;

-#ifndef OPENSSL_NO_TLSEXT

- if (s->tlsext_status_expected)

- s->state=SSL3_ST_SW_CERT_STATUS_A;

- else

- s->state=SSL3_ST_SW_KEY_EXCH_A;

- }

- else

- {

- skip = 1;

- s->state=SSL3_ST_SW_KEY_EXCH_A;

- }

-#else

- }

- else

- skip=1;

- s->state=SSL3_ST_SW_KEY_EXCH_A;

-#endif

- s->init_num=0;

- break;

- case SSL3_ST_SW_KEY_EXCH_A:

- case SSL3_ST_SW_KEY_EXCH_B:

- alg_k = s->s3->tmp.new_cipher->algorithm_mkey;

- /* clear this, it may get reset by

- * send_server_key_exchange */

- if ((s->options & SSL_OP_EPHEMERAL_RSA)

-#ifndef OPENSSL_NO_KRB5

- && !(alg_k & SSL_kKRB5)

-#endif /* OPENSSL_NO_KRB5 */

- )

- /* option SSL_OP_EPHEMERAL_RSA sends temporary RSA key

- * even when forbidden by protocol specs

- * (handshake may fail as clients are not required to

- * be able to handle this) */

- s->s3->tmp.use_rsa_tmp=1;

- else

- s->s3->tmp.use_rsa_tmp=0;

- /* only send if a DH key exchange or

- * RSA but we have a sign only certificate */

- if (s->s3->tmp.use_rsa_tmp

- /* PSK: send ServerKeyExchange if PSK identity

- * hint if provided */

-#ifndef OPENSSL_NO_PSK

- || ((alg_k & SSL_kPSK) && s->ctx->psk_identity_hint)

-#endif

- || (alg_k & (SSL_kEDH|SSL_kDHr|SSL_kDHd))

- || (alg_k & SSL_kEECDH)

- || ((alg_k & SSL_kRSA)

- && (s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL

- || (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher)

- && EVP_PKEY_size(s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)

- )

- {

- dtls1_start_timer(s);

- ret=dtls1_send_server_key_exchange(s);

- if (ret <= 0) goto end;

- }

- else

- skip=1;

- s->state=SSL3_ST_SW_CERT_REQ_A;

- s->init_num=0;

- break;

- case SSL3_ST_SW_CERT_REQ_A:

- case SSL3_ST_SW_CERT_REQ_B:

- if (/* don't request cert unless asked for it: */

- !(s->verify_mode & SSL_VERIFY_PEER) ||

- /* if SSL_VERIFY_CLIENT_ONCE is set,

- * don't request cert during re-negotiation: */

- ((s->session->peer != NULL) &&

- (s->verify_mode & SSL_VERIFY_CLIENT_ONCE)) ||

- /* never request cert in anonymous ciphersuites

- * (see section "Certificate request" in SSL 3 drafts

- * and in RFC 2246): */

- ((s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL) &&

- /* ... except when the application insists on verification

- * (against the specs, but s3_clnt.c accepts this for SSL 3) */

- !(s->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT)) ||

- /* never request cert in Kerberos ciphersuites */

- (s->s3->tmp.new_cipher->algorithm_auth & SSL_aKRB5)

- /* With normal PSK Certificates and

- * Certificate Requests are omitted */

- || (s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK))

- {

- /* no cert request */

- skip=1;

- s->s3->tmp.cert_request=0;

- s->state=SSL3_ST_SW_SRVR_DONE_A;

-#ifndef OPENSSL_NO_SCTP

- if (BIO_dgram_is_sctp(SSL_get_wbio(s)))

- {

- s->d1->next_state = SSL3_ST_SW_SRVR_DONE_A;

- s->state = DTLS1_SCTP_ST_SW_WRITE_SOCK;

- }

-#endif

- }

- else

- {

- s->s3->tmp.cert_request=1;

- dtls1_start_timer(s);

- ret=dtls1_send_certificate_request(s);

- if (ret <= 0) goto end;

-#ifndef NETSCAPE_HANG_BUG

- s->state=SSL3_ST_SW_SRVR_DONE_A;

-#ifndef OPENSSL_NO_SCTP

- if (BIO_dgram_is_sctp(SSL_get_wbio(s)))

- {

- s->d1->next_state = SSL3_ST_SW_SRVR_DONE_A;

- s->state = DTLS1_SCTP_ST_SW_WRITE_SOCK;

- }

-#endif

-#else

- s->state=SSL3_ST_SW_FLUSH;

- s->s3->tmp.next_state=SSL3_ST_SR_CERT_A;

-#ifndef OPENSSL_NO_SCTP

- if (BIO_dgram_is_sctp(SSL_get_wbio(s)))

- {

- s->d1->next_state = s->s3->tmp.next_state;

- s->s3->tmp.next_state=DTLS1_SCTP_ST_SW_WRITE_SOCK;

- }

-#endif

- s->init_num=0;

- }

- break;

- case SSL3_ST_SW_SRVR_DONE_A:

- case SSL3_ST_SW_SRVR_DONE_B:

- dtls1_start_timer(s);

- ret=dtls1_send_server_done(s);

- if (ret <= 0) goto end;

- s->s3->tmp.next_state=SSL3_ST_SR_CERT_A;

- s->state=SSL3_ST_SW_FLUSH;

- s->init_num=0;

- break;

- case SSL3_ST_SW_FLUSH:

- s->rwstate=SSL_WRITING;

- if (BIO_flush(s->wbio) <= 0)

- {

- /* If the write error was fatal, stop trying */

- if (!BIO_should_retry(s->wbio))

- {

- s->rwstate=SSL_NOTHING;

- s->state=s->s3->tmp.next_state;

- }

- ret= -1;

- goto end;

- }

- s->rwstate=SSL_NOTHING;

- s->state=s->s3->tmp.next_state;

- break;

- case SSL3_ST_SR_CERT_A:

- case SSL3_ST_SR_CERT_B:

- /* Check for second client hello (MS SGC) */

- ret = ssl3_check_client_hello(s);

- if (ret <= 0)

- goto end;

- if (ret == 2)

- {

- dtls1_stop_timer(s);

- s->state = SSL3_ST_SR_CLNT_HELLO_C;

- }

- else {

- /* could be sent for a DH cert, even if we

- * have not asked for it :-) */

- ret=ssl3_get_client_certificate(s);

- if (ret <= 0) goto end;

- s->init_num=0;

- s->state=SSL3_ST_SR_KEY_EXCH_A;

- }

- break;

- case SSL3_ST_SR_KEY_EXCH_A:

- case SSL3_ST_SR_KEY_EXCH_B:

- ret=ssl3_get_client_key_exchange(s);

- if (ret <= 0) goto end;

-#ifndef OPENSSL_NO_SCTP

- /* Add new shared key for SCTP-Auth,

- * will be ignored if no SCTP used.

- */

- snprintf((char *) labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL),

- DTLS1_SCTP_AUTH_LABEL);

- SSL_export_keying_material(s, sctpauthkey,

- sizeof(sctpauthkey), labelbuffer,

- sizeof(labelbuffer), NULL, 0, 0);

- BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY,

- sizeof(sctpauthkey), sctpauthkey);

-#endif

- s->state=SSL3_ST_SR_CERT_VRFY_A;

- s->init_num=0;

- if (ret == 2)

- {

- /* For the ECDH ciphersuites when

- * the client sends its ECDH pub key in

- * a certificate, the CertificateVerify

- * message is not sent.

- */

- s->state=SSL3_ST_SR_FINISHED_A;

- s->init_num = 0;

- }

- else

- {

- s->state=SSL3_ST_SR_CERT_VRFY_A;

- s->init_num=0;

- /* We need to get hashes here so if there is

- * a client cert, it can be verified */

- s->method->ssl3_enc->cert_verify_mac(s,

- NID_md5,

- &(s->s3->tmp.cert_verify_md[0]));

- s->method->ssl3_enc->cert_verify_mac(s,

- NID_sha1,

- &(s->s3->tmp.cert_verify_md[MD5_DIGEST_LENGTH]));

- }

- break;

- case SSL3_ST_SR_CERT_VRFY_A:

- case SSL3_ST_SR_CERT_VRFY_B:

- s->d1->change_cipher_spec_ok = 1;

- /* we should decide if we expected this one */

- ret=ssl3_get_cert_verify(s);

- if (ret <= 0) goto end;

-#ifndef OPENSSL_NO_SCTP

- if (BIO_dgram_is_sctp(SSL_get_wbio(s)) &&

- state == SSL_ST_RENEGOTIATE)

- s->state=DTLS1_SCTP_ST_SR_READ_SOCK;

- else

-#endif

- s->state=SSL3_ST_SR_FINISHED_A;

- s->init_num=0;

- break;

- case SSL3_ST_SR_FINISHED_A:

- case SSL3_ST_SR_FINISHED_B:

- s->d1->change_cipher_spec_ok = 1;

- ret=ssl3_get_finished(s,SSL3_ST_SR_FINISHED_A,

- SSL3_ST_SR_FINISHED_B);

- if (ret <= 0) goto end;

- dtls1_stop_timer(s);

- if (s->hit)

- s->state=SSL_ST_OK;

-#ifndef OPENSSL_NO_TLSEXT

- else if (s->tlsext_ticket_expected)

- s->state=SSL3_ST_SW_SESSION_TICKET_A;

-#endif

- else

- s->state=SSL3_ST_SW_CHANGE_A;

- s->init_num=0;

- break;

-#ifndef OPENSSL_NO_TLSEXT

- case SSL3_ST_SW_SESSION_TICKET_A:

- case SSL3_ST_SW_SESSION_TICKET_B:

- ret=dtls1_send_newsession_ticket(s);

- if (ret <= 0) goto end;

- s->state=SSL3_ST_SW_CHANGE_A;

- s->init_num=0;

- break;

- case SSL3_ST_SW_CERT_STATUS_A:

- case SSL3_ST_SW_CERT_STATUS_B:

- ret=ssl3_send_cert_status(s);

- if (ret <= 0) goto end;

- s->state=SSL3_ST_SW_KEY_EXCH_A;

- s->init_num=0;

- break;

-#endif

- case SSL3_ST_SW_CHANGE_A:

- case SSL3_ST_SW_CHANGE_B:

- s->session->cipher=s->s3->tmp.new_cipher;

- if (!s->method->ssl3_enc->setup_key_block(s))

- { ret= -1; goto end; }

- ret=dtls1_send_change_cipher_spec(s,

- SSL3_ST_SW_CHANGE_A,SSL3_ST_SW_CHANGE_B);

- if (ret <= 0) goto end;

-#ifndef OPENSSL_NO_SCTP

- /* Change to new shared key of SCTP-Auth,

- * will be ignored if no SCTP used.

- */

- BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY, 0, NULL);

-#endif

- s->state=SSL3_ST_SW_FINISHED_A;

- s->init_num=0;

- if (!s->method->ssl3_enc->change_cipher_state(s,

- SSL3_CHANGE_CIPHER_SERVER_WRITE))

- {

- ret= -1;

- goto end;

- }

- dtls1_reset_seq_numbers(s, SSL3_CC_WRITE);

- break;

- case SSL3_ST_SW_FINISHED_A:

- case SSL3_ST_SW_FINISHED_B:

- ret=dtls1_send_finished(s,

- SSL3_ST_SW_FINISHED_A,SSL3_ST_SW_FINISHED_B,

- s->method->ssl3_enc->server_finished_label,

- s->method->ssl3_enc->server_finished_label_len);

- if (ret <= 0) goto end;

- s->state=SSL3_ST_SW_FLUSH;

- if (s->hit)

- s->s3->tmp.next_state=SSL3_ST_SR_FINISHED_A;

- else

- {

- s->s3->tmp.next_state=SSL_ST_OK;

-#ifndef OPENSSL_NO_SCTP

- if (BIO_dgram_is_sctp(SSL_get_wbio(s)))

- {

- s->d1->next_state = s->s3->tmp.next_state;

- s->s3->tmp.next_state=DTLS1_SCTP_ST_SW_WRITE_SOCK;

- }

-#endif

- }

- s->init_num=0;

- break;

- case SSL_ST_OK:

- /* clean a few things up */

- ssl3_cleanup_key_block(s);

-#if 0

- BUF_MEM_free(s->init_buf);

- s->init_buf=NULL;

-#endif

- /* remove buffering on output */

- ssl_free_wbio_buffer(s);

- s->init_num=0;

- if (s->renegotiate == 2) /* skipped if we just sent a HelloRequest */

- {

- s->renegotiate=0;

- s->new_session=0;

- ssl_update_cache(s,SSL_SESS_CACHE_SERVER);

- s->ctx->stats.sess_accept_good++;

- /* s->server=1; */

- s->handshake_func=dtls1_accept;

- if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);

- }

- ret = 1;

- /* done handshaking, next message is client hello */

- s->d1->handshake_read_seq = 0;

- /* next message is server hello */

- s->d1->handshake_write_seq = 0;

- s->d1->next_handshake_write_seq = 0;

- goto end;

- /* break; */

- default:

- SSLerr(SSL_F_DTLS1_ACCEPT,SSL_R_UNKNOWN_STATE);

- ret= -1;

- goto end;

- /* break; */

- }

- if (!s->s3->tmp.reuse_message && !skip)

- {

- if (s->debug)

- {

- if ((ret=BIO_flush(s->wbio)) <= 0)

- goto end;

- }

- if ((cb != NULL) && (s->state != state))

- {

- new_state=s->state;

- s->state=state;

- cb(s,SSL_CB_ACCEPT_LOOP,1);

- s->state=new_state;

- }

- skip=0;

- }

-end:

- /* BIO_flush(s->wbio); */

- s->in_handshake--;

-#ifndef OPENSSL_NO_SCTP

- /* Notify SCTP BIO socket to leave handshake

- * mode and prevent stream identifier other

- * than 0. Will be ignored if no SCTP is used.

- */

- BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE, s->in_handshake, NULL);

-#endif

- if (cb != NULL)

- cb(s,SSL_CB_ACCEPT_EXIT,ret);

- return(ret);

- }

-int dtls1_send_hello_request(SSL *s)

- {

- unsigned char *p;

- if (s->state == SSL3_ST_SW_HELLO_REQ_A)

- {

- p=(unsigned char *)s->init_buf->data;

- p = dtls1_set_message_header(s, p, SSL3_MT_HELLO_REQUEST, 0, 0, 0);

- s->state=SSL3_ST_SW_HELLO_REQ_B;

- /* number of bytes to write */

- s->init_num=DTLS1_HM_HEADER_LENGTH;

- s->init_off=0;

- /* no need to buffer this message, since there are no retransmit

- * requests for it */

- }

- /* SSL3_ST_SW_HELLO_REQ_B */

- return(dtls1_do_write(s,SSL3_RT_HANDSHAKE));

- }

-int dtls1_send_hello_verify_request(SSL *s)

- {

- unsigned int msg_len;

- unsigned char *msg, *buf, *p;

- if (s->state == DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A)

- {

- buf = (unsigned char *)s->init_buf->data;

- msg = p = &(buf[DTLS1_HM_HEADER_LENGTH]);

- *(p++) = s->version >> 8;

- *(p++) = s->version & 0xFF;

- if (s->ctx->app_gen_cookie_cb == NULL ||

- s->ctx->app_gen_cookie_cb(s, s->d1->cookie,

- &(s->d1->cookie_len)) == 0)

- {

- SSLerr(SSL_F_DTLS1_SEND_HELLO_VERIFY_REQUEST,ERR_R_INTERNAL_ERROR);

- return 0;

- }

- *(p++) = (unsigned char) s->d1->cookie_len;

- memcpy(p, s->d1->cookie, s->d1->cookie_len);

- p += s->d1->cookie_len;

- msg_len = p - msg;

- dtls1_set_message_header(s, buf,

- DTLS1_MT_HELLO_VERIFY_REQUEST, msg_len, 0, msg_len);

- s->state=DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B;

- /* number of bytes to write */

- s->init_num=p-buf;

- s->init_off=0;

- }

- /* s->state = DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B */

- return(dtls1_do_write(s,SSL3_RT_HANDSHAKE));

- }

-int dtls1_send_server_hello(SSL *s)

- {

- unsigned char *buf;

- unsigned char *p,*d;

- int i;

- unsigned int sl;

- unsigned long l,Time;

- if (s->state == SSL3_ST_SW_SRVR_HELLO_A)

- {

- buf=(unsigned char *)s->init_buf->data;

- p=s->s3->server_random;

- Time=(unsigned long)time(NULL); /* Time */

- l2n(Time,p);

- RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4);

- /* Do the message type and length last */

- d=p= &(buf[DTLS1_HM_HEADER_LENGTH]);

- *(p++)=s->version>>8;

- *(p++)=s->version&0xff;

- /* Random stuff */

- memcpy(p,s->s3->server_random,SSL3_RANDOM_SIZE);

- p+=SSL3_RANDOM_SIZE;

- /* now in theory we have 3 options to sending back the

- * session id. If it is a re-use, we send back the

- * old session-id, if it is a new session, we send

- * back the new session-id or we send back a 0 length

- * session-id if we want it to be single use.

- * Currently I will not implement the '0' length session-id

- * 12-Jan-98 - I'll now support the '0' length stuff.

- */

- if (!(s->ctx->session_cache_mode & SSL_SESS_CACHE_SERVER))

- s->session->session_id_length=0;

- sl=s->session->session_id_length;

- if (sl > sizeof s->session->session_id)

- {

- SSLerr(SSL_F_DTLS1_SEND_SERVER_HELLO, ERR_R_INTERNAL_ERROR);

- return -1;

- }

- *(p++)=sl;

- memcpy(p,s->session->session_id,sl);

- p+=sl;

- /* put the cipher */

- if (s->s3->tmp.new_cipher == NULL)

- return -1;

- i=ssl3_put_cipher_by_char(s->s3->tmp.new_cipher,p);

- p+=i;

- /* put the compression method */

-#ifdef OPENSSL_NO_COMP

- *(p++)=0;

-#else

- if (s->s3->tmp.new_compression == NULL)

- *(p++)=0;

- else

- *(p++)=s->s3->tmp.new_compression->id;

-#endif

-#ifndef OPENSSL_NO_TLSEXT

- if ((p = ssl_add_serverhello_tlsext(s, p, buf+SSL3_RT_MAX_PLAIN_LENGTH)) == NULL)

- {

- SSLerr(SSL_F_DTLS1_SEND_SERVER_HELLO,ERR_R_INTERNAL_ERROR);

- return -1;

- }

-#endif

- /* do the header */

- l=(p-d);

- d=buf;

- d = dtls1_set_message_header(s, d, SSL3_MT_SERVER_HELLO, l, 0, l);

- s->state=SSL3_ST_SW_SRVR_HELLO_B;

- /* number of bytes to write */

- s->init_num=p-buf;

- s->init_off=0;

- /* buffer the message to handle re-xmits */

- dtls1_buffer_message(s, 0);

- }

- /* SSL3_ST_SW_SRVR_HELLO_B */

- return(dtls1_do_write(s,SSL3_RT_HANDSHAKE));

- }

-int dtls1_send_server_done(SSL *s)

- {

- unsigned char *p;

- if (s->state == SSL3_ST_SW_SRVR_DONE_A)

- {

- p=(unsigned char *)s->init_buf->data;

- /* do the header */

- p = dtls1_set_message_header(s, p, SSL3_MT_SERVER_DONE, 0, 0, 0);

- s->state=SSL3_ST_SW_SRVR_DONE_B;

- /* number of bytes to write */

- s->init_num=DTLS1_HM_HEADER_LENGTH;

- s->init_off=0;

- /* buffer the message to handle re-xmits */

- dtls1_buffer_message(s, 0);

- }

- /* SSL3_ST_SW_SRVR_DONE_B */

- return(dtls1_do_write(s,SSL3_RT_HANDSHAKE));

- }

-int dtls1_send_server_key_exchange(SSL *s)

- {

-#ifndef OPENSSL_NO_RSA

- unsigned char *q;

- int j,num;

- RSA *rsa;

- unsigned char md_buf[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH];

- unsigned int u;

-#endif

-#ifndef OPENSSL_NO_DH

- DH *dh=NULL,*dhp;

-#endif

-#ifndef OPENSSL_NO_ECDH

- EC_KEY *ecdh=NULL, *ecdhp;

- unsigned char *encodedPoint = NULL;

- int encodedlen = 0;

- int curve_id = 0;

- BN_CTX *bn_ctx = NULL;

-#endif

- EVP_PKEY *pkey;

- unsigned char *p,*d;

- int al,i;

- unsigned long type;

- int n;

- CERT *cert;

- BIGNUM *r[4];

- int nr[4],kn;

- BUF_MEM *buf;

- EVP_MD_CTX md_ctx;

- EVP_MD_CTX_init(&md_ctx);

- if (s->state == SSL3_ST_SW_KEY_EXCH_A)

- {

- type=s->s3->tmp.new_cipher->algorithm_mkey;

- cert=s->cert;

- buf=s->init_buf;

- r[0]=r[1]=r[2]=r[3]=NULL;

- n=0;

-#ifndef OPENSSL_NO_RSA

- if (type & SSL_kRSA)

- {

- rsa=cert->rsa_tmp;

- if ((rsa == NULL) && (s->cert->rsa_tmp_cb != NULL))

- {

- rsa=s->cert->rsa_tmp_cb(s,

- SSL_C_IS_EXPORT(s->s3->tmp.new_cipher),

- SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher));

- if(rsa == NULL)

- {

- al=SSL_AD_HANDSHAKE_FAILURE;

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_ERROR_GENERATING_TMP_RSA_KEY);

- goto f_err;

- }

- RSA_up_ref(rsa);

- cert->rsa_tmp=rsa;

- }

- if (rsa == NULL)

- {

- al=SSL_AD_HANDSHAKE_FAILURE;

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_RSA_KEY);

- goto f_err;

- }

- r[0]=rsa->n;

- r[1]=rsa->e;

- s->s3->tmp.use_rsa_tmp=1;

- }

- else

-#endif

-#ifndef OPENSSL_NO_DH

- if (type & SSL_kEDH)

- {

- dhp=cert->dh_tmp;

- if ((dhp == NULL) && (s->cert->dh_tmp_cb != NULL))

- dhp=s->cert->dh_tmp_cb(s,

- SSL_C_IS_EXPORT(s->s3->tmp.new_cipher),

- SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher));

- if (dhp == NULL)

- {

- al=SSL_AD_HANDSHAKE_FAILURE;

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_DH_KEY);

- goto f_err;

- }

- if (s->s3->tmp.dh != NULL)

- {

- DH_free(dh);

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);

- goto err;

- }

- if ((dh=DHparams_dup(dhp)) == NULL)

- {

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_DH_LIB);

- goto err;

- }

- s->s3->tmp.dh=dh;

- if ((dhp->pub_key == NULL ||

- dhp->priv_key == NULL ||

- (s->options & SSL_OP_SINGLE_DH_USE)))

- {

- if(!DH_generate_key(dh))

- {

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,

- ERR_R_DH_LIB);

- goto err;

- }

- else

- {

- dh->pub_key=BN_dup(dhp->pub_key);

- dh->priv_key=BN_dup(dhp->priv_key);

- if ((dh->pub_key == NULL) ||

- (dh->priv_key == NULL))

- {

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_DH_LIB);

- goto err;

- }

- r[0]=dh->p;

- r[1]=dh->g;

- r[2]=dh->pub_key;

- }

- else

-#endif

-#ifndef OPENSSL_NO_ECDH

- if (type & SSL_kEECDH)

- {

- const EC_GROUP *group;

- ecdhp=cert->ecdh_tmp;

- if ((ecdhp == NULL) && (s->cert->ecdh_tmp_cb != NULL))

- {

- ecdhp=s->cert->ecdh_tmp_cb(s,

- SSL_C_IS_EXPORT(s->s3->tmp.new_cipher),

- SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher));

- }

- if (ecdhp == NULL)

- {

- al=SSL_AD_HANDSHAKE_FAILURE;

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_ECDH_KEY);

- goto f_err;

- }

- if (s->s3->tmp.ecdh != NULL)

- {

- EC_KEY_free(s->s3->tmp.ecdh);

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);

- goto err;

- }

- /* Duplicate the ECDH structure. */

- if (ecdhp == NULL)

- {

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);

- goto err;

- }

- if ((ecdh = EC_KEY_dup(ecdhp)) == NULL)

- {

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);

- goto err;

- }

- s->s3->tmp.ecdh=ecdh;

- if ((EC_KEY_get0_public_key(ecdh) == NULL) ||

- (EC_KEY_get0_private_key(ecdh) == NULL) ||

- (s->options & SSL_OP_SINGLE_ECDH_USE))

- {

- if(!EC_KEY_generate_key(ecdh))

- {

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);

- goto err;

- }

- if (((group = EC_KEY_get0_group(ecdh)) == NULL) ||

- (EC_KEY_get0_public_key(ecdh) == NULL) ||

- (EC_KEY_get0_private_key(ecdh) == NULL))

- {

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);

- goto err;

- }

- if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&

- (EC_GROUP_get_degree(group) > 163))

- {

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);

- goto err;

- }

- /* XXX: For now, we only support ephemeral ECDH

- * keys over named (not generic) curves. For

- * supported named curves, curve_id is non-zero.

- */

- if ((curve_id =

- tls1_ec_nid2curve_id(EC_GROUP_get_curve_name(group)))

- == 0)

- {

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNSUPPORTED_ELLIPTIC_CURVE);

- goto err;

- }

- /* Encode the public key.

- * First check the size of encoding and

- * allocate memory accordingly.

- */

- encodedlen = EC_POINT_point2oct(group,

- EC_KEY_get0_public_key(ecdh),

- POINT_CONVERSION_UNCOMPRESSED,

- NULL, 0, NULL);

- encodedPoint = (unsigned char *)

- OPENSSL_malloc(encodedlen*sizeof(unsigned char));

- bn_ctx = BN_CTX_new();

- if ((encodedPoint == NULL) || (bn_ctx == NULL))

- {

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);

- goto err;

- }

- encodedlen = EC_POINT_point2oct(group,

- EC_KEY_get0_public_key(ecdh),

- POINT_CONVERSION_UNCOMPRESSED,

- encodedPoint, encodedlen, bn_ctx);

- if (encodedlen == 0)

- {

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);

- goto err;

- }

- BN_CTX_free(bn_ctx); bn_ctx=NULL;

- /* XXX: For now, we only support named (not

- * generic) curves in ECDH ephemeral key exchanges.

- * In this situation, we need four additional bytes

- * to encode the entire ServerECDHParams

- * structure.

- */

- n = 4 + encodedlen;

- /* We'll generate the serverKeyExchange message

- * explicitly so we can set these to NULLs

- */

- r[0]=NULL;

- r[1]=NULL;

- r[2]=NULL;

- r[3]=NULL;

- }

- else

-#endif /* !OPENSSL_NO_ECDH */

-#ifndef OPENSSL_NO_PSK

- if (type & SSL_kPSK)

- {

- /* reserve size for record length and PSK identity hint*/

- n+=2+strlen(s->ctx->psk_identity_hint);

- }

- else

-#endif /* !OPENSSL_NO_PSK */

- {

- al=SSL_AD_HANDSHAKE_FAILURE;

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE);

- goto f_err;

- }

- for (i=0; r[i] != NULL; i++)

- {

- nr[i]=BN_num_bytes(r[i]);

- n+=2+nr[i];

- }

- if (!(s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL)

- && !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK))

- {

- if ((pkey=ssl_get_sign_pkey(s,s->s3->tmp.new_cipher, NULL))

- == NULL)

- {

- al=SSL_AD_DECODE_ERROR;

- goto f_err;

- }

- kn=EVP_PKEY_size(pkey);

- }

- else

- {

- pkey=NULL;

- kn=0;

- }

- if (!BUF_MEM_grow_clean(buf,n+DTLS1_HM_HEADER_LENGTH+kn))

- {

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_BUF);

- goto err;

- }

- d=(unsigned char *)s->init_buf->data;

- p= &(d[DTLS1_HM_HEADER_LENGTH]);

- for (i=0; r[i] != NULL; i++)

- {

- s2n(nr[i],p);

- BN_bn2bin(r[i],p);

- p+=nr[i];

- }

-#ifndef OPENSSL_NO_ECDH

- if (type & SSL_kEECDH)

- {

- /* XXX: For now, we only support named (not generic) curves.

- * In this situation, the serverKeyExchange message has:

- * [1 byte CurveType], [2 byte CurveName]

- * [1 byte length of encoded point], followed by

- * the actual encoded point itself

- */

- *p = NAMED_CURVE_TYPE;

- p += 1;

- *p = 0;

- p += 1;

- *p = curve_id;

- p += 1;

- *p = encodedlen;

- p += 1;

- memcpy((unsigned char*)p,

- (unsigned char *)encodedPoint,

- encodedlen);

- OPENSSL_free(encodedPoint);

- encodedPoint = NULL;

- p += encodedlen;

- }

-#endif

-#ifndef OPENSSL_NO_PSK

- if (type & SSL_kPSK)

- {

- /* copy PSK identity hint */

- s2n(strlen(s->ctx->psk_identity_hint), p);

- strncpy((char *)p, s->ctx->psk_identity_hint, strlen(s->ctx->psk_identity_hint));

- p+=strlen(s->ctx->psk_identity_hint);

- }

-#endif

- /* not anonymous */

- if (pkey != NULL)

- {

- /* n is the length of the params, they start at

- * &(d[DTLS1_HM_HEADER_LENGTH]) and p points to the space

- * at the end. */

-#ifndef OPENSSL_NO_RSA

- if (pkey->type == EVP_PKEY_RSA)

- {

- q=md_buf;

- j=0;

- for (num=2; num > 0; num--)

- {

- EVP_DigestInit_ex(&md_ctx,(num == 2)

- ?s->ctx->md5:s->ctx->sha1, NULL);

- EVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);

- EVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);

- EVP_DigestUpdate(&md_ctx,&(d[DTLS1_HM_HEADER_LENGTH]),n);

- EVP_DigestFinal_ex(&md_ctx,q,

- (unsigned int *)&i);

- q+=i;

- j+=i;

- }

- if (RSA_sign(NID_md5_sha1, md_buf, j,

- &(p[2]), &u, pkey->pkey.rsa) <= 0)

- {

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_RSA);

- goto err;

- }

- s2n(u,p);

- n+=u+2;

- }

- else

-#endif

-#if !defined(OPENSSL_NO_DSA)

- if (pkey->type == EVP_PKEY_DSA)

- {

- /* lets do DSS */

- EVP_SignInit_ex(&md_ctx,EVP_dss1(), NULL);

- EVP_SignUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);

- EVP_SignUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);

- EVP_SignUpdate(&md_ctx,&(d[DTLS1_HM_HEADER_LENGTH]),n);

- if (!EVP_SignFinal(&md_ctx,&(p[2]),

- (unsigned int *)&i,pkey))

- {

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_DSA);

- goto err;

- }

- s2n(i,p);

- n+=i+2;

- }

- else

-#endif

-#if !defined(OPENSSL_NO_ECDSA)

- if (pkey->type == EVP_PKEY_EC)

- {

- /* let's do ECDSA */

- EVP_SignInit_ex(&md_ctx,EVP_ecdsa(), NULL);

- EVP_SignUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);

- EVP_SignUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);

- EVP_SignUpdate(&md_ctx,&(d[DTLS1_HM_HEADER_LENGTH]),n);

- if (!EVP_SignFinal(&md_ctx,&(p[2]),

- (unsigned int *)&i,pkey))

- {

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_ECDSA);

- goto err;

- }

- s2n(i,p);

- n+=i+2;

- }

- else

-#endif

- {

- /* Is this error check actually needed? */

- al=SSL_AD_HANDSHAKE_FAILURE;

- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNKNOWN_PKEY_TYPE);

- goto f_err;

- }

- d = dtls1_set_message_header(s, d,

- SSL3_MT_SERVER_KEY_EXCHANGE, n, 0, n);

- /* we should now have things packed up, so lets send

- * it off */

- s->init_num=n+DTLS1_HM_HEADER_LENGTH;

- s->init_off=0;

- /* buffer the message to handle re-xmits */

- dtls1_buffer_message(s, 0);

- }

- s->state = SSL3_ST_SW_KEY_EXCH_B;

- EVP_MD_CTX_cleanup(&md_ctx);

- return(dtls1_do_write(s,SSL3_RT_HANDSHAKE));

-f_err:

- ssl3_send_alert(s,SSL3_AL_FATAL,al);

-err:

-#ifndef OPENSSL_NO_ECDH

- if (encodedPoint != NULL) OPENSSL_free(encodedPoint);

- BN_CTX_free(bn_ctx);

-#endif

- EVP_MD_CTX_cleanup(&md_ctx);

- return(-1);

- }

-int dtls1_send_certificate_request(SSL *s)

- {

- unsigned char *p,*d;

- int i,j,nl,off,n;

- STACK_OF(X509_NAME) *sk=NULL;

- X509_NAME *name;

- BUF_MEM *buf;

- unsigned int msg_len;

- if (s->state == SSL3_ST_SW_CERT_REQ_A)

- {

- buf=s->init_buf;

- d=p=(unsigned char *)&(buf->data[DTLS1_HM_HEADER_LENGTH]);

- /* get the list of acceptable cert types */

- p++;

- n=ssl3_get_req_cert_type(s,p);

- d[0]=n;

- p+=n;

- n++;

- off=n;

- p+=2;

- n+=2;

- sk=SSL_get_client_CA_list(s);

- nl=0;

- if (sk != NULL)

- {

- for (i=0; i<sk_X509_NAME_num(sk); i++)

- {

- name=sk_X509_NAME_value(sk,i);

- j=i2d_X509_NAME(name,NULL);

- if (!BUF_MEM_grow_clean(buf,DTLS1_HM_HEADER_LENGTH+n+j+2))

- {

- SSLerr(SSL_F_DTLS1_SEND_CERTIFICATE_REQUEST,ERR_R_BUF_LIB);

- goto err;

- }

- p=(unsigned char *)&(buf->data[DTLS1_HM_HEADER_LENGTH+n]);

- if (!(s->options & SSL_OP_NETSCAPE_CA_DN_BUG))

- {

- s2n(j,p);

- i2d_X509_NAME(name,&p);

- n+=2+j;

- nl+=2+j;

- }

- else

- {

- d=p;

- i2d_X509_NAME(name,&p);

- j-=2; s2n(j,d); j+=2;

- n+=j;

- nl+=j;

- }

- /* else no CA names */

- p=(unsigned char *)&(buf->data[DTLS1_HM_HEADER_LENGTH+off]);

- s2n(nl,p);

- d=(unsigned char *)buf->data;

- *(d++)=SSL3_MT_CERTIFICATE_REQUEST;

- l2n3(n,d);

- s2n(s->d1->handshake_write_seq,d);

- s->d1->handshake_write_seq++;

- /* we should now have things packed up, so lets send

- * it off */

- s->init_num=n+DTLS1_HM_HEADER_LENGTH;

- s->init_off=0;

-#ifdef NETSCAPE_HANG_BUG

-/* XXX: what to do about this? */

- p=(unsigned char *)s->init_buf->data + s->init_num;

- /* do the header */

- *(p++)=SSL3_MT_SERVER_DONE;

- *(p++)=0;

- s->init_num += 4;

-#endif

- /* XDTLS: set message header ? */

- msg_len = s->init_num - DTLS1_HM_HEADER_LENGTH;

- dtls1_set_message_header(s, (void *)s->init_buf->data,

- SSL3_MT_CERTIFICATE_REQUEST, msg_len, 0, msg_len);

- /* buffer the message to handle re-xmits */

- dtls1_buffer_message(s, 0);

- s->state = SSL3_ST_SW_CERT_REQ_B;

- }

- /* SSL3_ST_SW_CERT_REQ_B */

- return(dtls1_do_write(s,SSL3_RT_HANDSHAKE));

-err:

- return(-1);

- }

-int dtls1_send_server_certificate(SSL *s)

- {

- unsigned long l;

- X509 *x;

- if (s->state == SSL3_ST_SW_CERT_A)

- {

- x=ssl_get_server_send_cert(s);

- if (x == NULL)

- {

- /* VRS: allow null cert if auth == KRB5 */

- if ((s->s3->tmp.new_cipher->algorithm_mkey != SSL_kKRB5) ||

- (s->s3->tmp.new_cipher->algorithm_auth != SSL_aKRB5))

- {

- SSLerr(SSL_F_DTLS1_SEND_SERVER_CERTIFICATE,ERR_R_INTERNAL_ERROR);

- return(0);

- }

- l=dtls1_output_cert_chain(s,x);

- s->state=SSL3_ST_SW_CERT_B;

- s->init_num=(int)l;

- s->init_off=0;

- /* buffer the message to handle re-xmits */

- dtls1_buffer_message(s, 0);

- }

- /* SSL3_ST_SW_CERT_B */

- return(dtls1_do_write(s,SSL3_RT_HANDSHAKE));

- }

-#ifndef OPENSSL_NO_TLSEXT

-int dtls1_send_newsession_ticket(SSL *s)

- {

- if (s->state == SSL3_ST_SW_SESSION_TICKET_A)

- {

- unsigned char *p, *senc, *macstart;

- int len, slen;

- unsigned int hlen, msg_len;

- EVP_CIPHER_CTX ctx;

- HMAC_CTX hctx;

- SSL_CTX *tctx = s->initial_ctx;

- unsigned char iv[EVP_MAX_IV_LENGTH];

- unsigned char key_name[16];

- /* get session encoding length */

- slen = i2d_SSL_SESSION(s->session, NULL);

- /* Some length values are 16 bits, so forget it if session is

- * too long

- */

- if (slen > 0xFF00)

- return -1;

- /* Grow buffer if need be: the length calculation is as

- * follows 12 (DTLS handshake message header) +

- * 4 (ticket lifetime hint) + 2 (ticket length) +

- * 16 (key name) + max_iv_len (iv length) +

- * session_length + max_enc_block_size (max encrypted session

- * length) + max_md_size (HMAC).

- */

- if (!BUF_MEM_grow(s->init_buf,

- DTLS1_HM_HEADER_LENGTH + 22 + EVP_MAX_IV_LENGTH +

- EVP_MAX_BLOCK_LENGTH + EVP_MAX_MD_SIZE + slen))

- return -1;

- senc = OPENSSL_malloc(slen);

- if (!senc)

- return -1;

- p = senc;

- i2d_SSL_SESSION(s->session, &p);

- p=(unsigned char *)&(s->init_buf->data[DTLS1_HM_HEADER_LENGTH]);

- EVP_CIPHER_CTX_init(&ctx);

- HMAC_CTX_init(&hctx);

- /* Initialize HMAC and cipher contexts. If callback present

- * it does all the work otherwise use generated values

- * from parent ctx.

- */

- if (tctx->tlsext_ticket_key_cb)

- {

- if (tctx->tlsext_ticket_key_cb(s, key_name, iv, &ctx,

- &hctx, 1) < 0)

- {

- OPENSSL_free(senc);

- return -1;

- }

- else

- {

- RAND_pseudo_bytes(iv, 16);

- EVP_EncryptInit_ex(&ctx, EVP_aes_128_cbc(), NULL,

- tctx->tlsext_tick_aes_key, iv);

- HMAC_Init_ex(&hctx, tctx->tlsext_tick_hmac_key, 16,

- tlsext_tick_md(), NULL);

- memcpy(key_name, tctx->tlsext_tick_key_name, 16);

- }

- l2n(s->session->tlsext_tick_lifetime_hint, p);

- /* Skip ticket length for now */

- p += 2;

- /* Output key name */

- macstart = p;

- memcpy(p, key_name, 16);

- p += 16;

- /* output IV */

- memcpy(p, iv, EVP_CIPHER_CTX_iv_length(&ctx));

- p += EVP_CIPHER_CTX_iv_length(&ctx);

- /* Encrypt session data */

- EVP_EncryptUpdate(&ctx, p, &len, senc, slen);

- p += len;

- EVP_EncryptFinal(&ctx, p, &len);

- p += len;

- EVP_CIPHER_CTX_cleanup(&ctx);

- HMAC_Update(&hctx, macstart, p - macstart);

- HMAC_Final(&hctx, p, &hlen);

- HMAC_CTX_cleanup(&hctx);

- p += hlen;

- /* Now write out lengths: p points to end of data written */

- /* Total length */

- len = p - (unsigned char *)(s->init_buf->data);

- /* Ticket length */

- p=(unsigned char *)&(s->init_buf->data[DTLS1_HM_HEADER_LENGTH]) + 4;

- s2n(len - DTLS1_HM_HEADER_LENGTH - 6, p);

- /* number of bytes to write */

- s->init_num= len;

- s->state=SSL3_ST_SW_SESSION_TICKET_B;

- s->init_off=0;

- OPENSSL_free(senc);

- /* XDTLS: set message header ? */

- msg_len = s->init_num - DTLS1_HM_HEADER_LENGTH;

- dtls1_set_message_header(s, (void *)s->init_buf->data,

- SSL3_MT_NEWSESSION_TICKET, msg_len, 0, msg_len);

- /* buffer the message to handle re-xmits */

- dtls1_buffer_message(s, 0);

- }

- /* SSL3_ST_SW_SESSION_TICKET_B */

- return(dtls1_do_write(s,SSL3_RT_HANDSHAKE));

- }

-#endif

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