/* ssl/d1_srvr.c */
-/*
+/*
* DTLS implementation written by Nagendra Modadugu
- * (nagendra@cs.stanford.edu) for the OpenSSL project 2005.
+ * (nagendra@cs.stanford.edu) for the OpenSSL project 2005.
*/
/* ====================================================================
* Copyright (c) 1999-2007 The OpenSSL Project. All rights reserved.
* are met:
*
* 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * 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
* 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:
* 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
+ * 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
* 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
#include <openssl/md5.h>
#include <openssl/bn.h>
#ifndef OPENSSL_NO_DH
-#include <openssl/dh.h>
+# 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 if (ver == DTLS1_2_VERSION)
- return(DTLSv1_2_server_method());
- else
- return(NULL);
- }
+{
+ if (ver == DTLS1_VERSION)
+ return (DTLSv1_server_method());
+ else if (ver == DTLS1_2_VERSION)
+ return (DTLSv1_2_server_method());
+ else
+ return (NULL);
+}
IMPLEMENT_dtls1_meth_func(DTLS1_VERSION,
- DTLSv1_server_method,
- dtls1_accept,
- ssl_undefined_function,
- dtls1_get_server_method,
- DTLSv1_enc_data)
-
-IMPLEMENT_dtls1_meth_func(DTLS1_2_VERSION,
- DTLSv1_2_server_method,
- dtls1_accept,
- ssl_undefined_function,
- dtls1_get_server_method,
- DTLSv1_2_enc_data)
-
-IMPLEMENT_dtls1_meth_func(DTLS_ANY_VERSION,
- DTLS_server_method,
- dtls1_accept,
- ssl_undefined_function,
- dtls1_get_server_method,
- DTLSv1_2_enc_data)
+ DTLSv1_server_method,
+ dtls1_accept,
+ ssl_undefined_function,
+ dtls1_get_server_method, DTLSv1_enc_data)
+
+ IMPLEMENT_dtls1_meth_func(DTLS1_2_VERSION,
+ DTLSv1_2_server_method,
+ dtls1_accept,
+ ssl_undefined_function,
+ dtls1_get_server_method, DTLSv1_2_enc_data)
+
+ IMPLEMENT_dtls1_meth_func(DTLS_ANY_VERSION,
+ DTLS_server_method,
+ dtls1_accept,
+ ssl_undefined_function,
+ dtls1_get_server_method, DTLSv1_2_enc_data)
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;
+{
+ 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)];
+ unsigned char sctpauthkey[64];
+ char labelbuffer[sizeof(DTLS1_SCTP_AUTH_LABEL)];
#endif
- RAND_add(&Time,sizeof(Time),0);
- ERR_clear_error();
- clear_sys_error();
+ 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;
- 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;
+ listen = s->d1->listen;
- /* init things to blank */
- s->in_handshake++;
- if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
+ /* init things to blank */
+ s->in_handshake++;
+ if (!SSL_in_init(s) || SSL_in_before(s)) {
+ if (!SSL_clear(s))
+ return -1;
+ }
- s->d1->listen = listen;
+ 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);
+ /*
+ * 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++;
- }
+ /*
+ * 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 :-)
- */
+ 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;
+ s->state = SSL_ST_ERR;
+ goto end;
+ }
+ if (!BUF_MEM_grow(buf, SSL3_RT_MAX_PLAIN_LENGTH)) {
+ BUF_MEM_free(buf);
+ ret = -1;
+ s->state = SSL_ST_ERR;
+ goto end;
+ }
+ s->init_buf = buf;
+ }
+
+ if (!ssl3_setup_buffers(s)) {
+ ret = -1;
+ s->state = SSL_ST_ERR;
+ goto end;
+ }
+
+ s->init_num = 0;
+ s->d1->change_cipher_spec_ok = 0;
+ /*
+ * Should have been reset by ssl3_get_finished, too.
+ */
+ s->s3->change_cipher_spec = 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)))
+ 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_clear_record_buffer(s);
- dtls1_start_timer(s);
- ret=ssl3_send_hello_request(s);
- if (ret <= 0) goto end;
- s->s3->tmp.next_state=SSL3_ST_SR_CLNT_HELLO_A;
- 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;
-
+ if (!ssl_init_wbio_buffer(s, 1)) {
+ ret = -1;
+ s->state = SSL_ST_ERR;
+ 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_clear_record_buffer(s);
+ dtls1_start_timer(s);
+ ret = ssl3_send_hello_request(s);
+ if (ret <= 0)
+ goto end;
+ s->s3->tmp.next_state = SSL3_ST_SR_CLNT_HELLO_A;
+ 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) {
+ DTLS_RECORD_LAYER_resync_write(&s->rlayer);
+ }
+
+ /* 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;
+ 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=ssl3_send_server_hello(s);
- if (ret <= 0) goto end;
+ case SSL3_ST_SW_SRVR_HELLO_A:
+ case SSL3_ST_SW_SRVR_HELLO_B:
+ s->renegotiate = 2;
+ dtls1_start_timer(s);
+ ret = ssl3_send_server_hello(s);
+ if (ret <= 0)
+ goto end;
- if (s->hit)
- {
+ 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,
+ /*
+ * 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=ssl3_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 */
+ 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_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 = ssl3_send_server_certificate(s);
+ if (ret <= 0)
+ goto end;
+
+ 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;
+ }
+ 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
+ */
+ s->s3->tmp.use_rsa_tmp = 0;
+
+ /*
+ * only send if a DH key exchange or RSA but we have a sign only
+ * certificate
+ */
+ if (0
+ /*
+ * 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_kECDHE)
- || ((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=ssl3_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;
- }
+ || ((alg_k & SSL_kPSK) && s->ctx->psk_identity_hint)
#endif
- }
- else
- {
- s->s3->tmp.cert_request=1;
- dtls1_start_timer(s);
- ret=ssl3_send_certificate_request(s);
- if (ret <= 0) goto end;
-#ifndef NETSCAPE_HANG_BUG
- s->state=SSL3_ST_SW_SRVR_DONE_A;
+ || (alg_k & SSL_kDHE)
+ || (alg_k & SSL_kECDHE)
+ || ((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 = ssl3_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))
+ /*
+ * 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;
- }
+ 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;
+ } else {
+ s->s3->tmp.cert_request = 1;
+ dtls1_start_timer(s);
+ ret = ssl3_send_certificate_request(s);
+ if (ret <= 0)
+ goto end;
+ 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
+ s->init_num = 0;
+ }
+ break;
+
+ case SSL3_ST_SW_SRVR_DONE_A:
+ case SSL3_ST_SW_SRVR_DONE_B:
+ dtls1_start_timer(s);
+ ret = ssl3_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:
+ if (s->s3->tmp.cert_request) {
+ 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
- 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
-#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=ssl3_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);
+ /*
+ * 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 if (SSL_USE_SIGALGS(s))
- {
- s->state=SSL3_ST_SR_CERT_VRFY_A;
- s->init_num=0;
- if (!s->session->peer)
- break;
- /* For sigalgs freeze the handshake buffer
- * at this point and digest cached records.
- */
- if (!s->s3->handshake_buffer)
- {
- SSLerr(SSL_F_DTLS1_ACCEPT,ERR_R_INTERNAL_ERROR);
- return -1;
- }
- s->s3->flags |= TLS1_FLAGS_KEEP_HANDSHAKE;
- if (!ssl3_digest_cached_records(s))
- return -1;
- }
- 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;
+ 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 if (SSL_USE_SIGALGS(s)) {
+ s->state = SSL3_ST_SR_CERT_VRFY_A;
+ s->init_num = 0;
+ if (!s->session->peer)
+ break;
+ if (!s->s3->handshake_buffer) {
+ SSLerr(SSL_F_DTLS1_ACCEPT, ERR_R_INTERNAL_ERROR);
+ s->state = SSL_ST_ERR;
+ return -1;
+ }
+ /*
+ * For sigalgs freeze the handshake buffer. If we support
+ * extms we've done this already.
+ */
+ if (!(s->s3->flags & SSL_SESS_FLAG_EXTMS)) {
+ s->s3->flags |= TLS1_FLAGS_KEEP_HANDSHAKE;
+ if (!ssl3_digest_cached_records(s)) {
+ s->state = SSL_ST_ERR;
+ return -1;
+ }
+ }
+ } 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:
+ 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;
+ if (BIO_dgram_is_sctp(SSL_get_wbio(s)) &&
+ state == SSL_ST_RENEGOTIATE)
+ s->state = DTLS1_SCTP_ST_SR_READ_SOCK;
+ else
#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=ssl3_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;
+ s->state = SSL3_ST_SR_FINISHED_A;
+ s->init_num = 0;
+ break;
+
+ case SSL3_ST_SR_FINISHED_A:
+ case SSL3_ST_SR_FINISHED_B:
+ /*
+ * Enable CCS. Receiving a CCS clears the flag, so make
+ * sure not to re-enable it to ban duplicates. This *should* be the
+ * first time we have received one - but we check anyway to be
+ * cautious.
+ * s->s3->change_cipher_spec is set when a CCS is
+ * processed in d1_pkt.c, and remains set until
+ * the client's Finished message is read.
+ */
+ if (!s->s3->change_cipher_spec)
+ 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;
+ else if (s->tlsext_ticket_expected)
+ s->state = SSL3_ST_SW_SESSION_TICKET_A;
+ else
+ s->state = SSL3_ST_SW_CHANGE_A;
+ s->init_num = 0;
+ break;
+
+ case SSL3_ST_SW_SESSION_TICKET_A:
+ case SSL3_ST_SW_SESSION_TICKET_B:
+ ret = ssl3_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;
+
+ 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;
+ s->state = SSL_ST_ERR;
+ 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
- if (!s->hit)
- {
- /* 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);
- }
+ if (!s->hit) {
+ /*
+ * 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=ssl3_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;
+ 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;
+ s->state = SSL_ST_ERR;
+ goto end;
+ }
+
+ dtls1_reset_seq_numbers(s, SSL3_CC_WRITE);
+ break;
+
+ case SSL3_ST_SW_FINISHED_A:
+ case SSL3_ST_SW_FINISHED_B:
+ ret = ssl3_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;
#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);
+ /*
+ * 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
- }
- else
- {
- s->s3->tmp.next_state=SSL_ST_OK;
+ } 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;
+ 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
-
- /* 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--;
+ }
+ s->init_num = 0;
+ break;
+
+ case SSL_ST_OK:
+ /* clean a few things up */
+ ssl3_cleanup_key_block(s);
+
+ /* 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; */
+
+ case SSL_ST_ERR:
+ 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);
+ /*
+ * 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);
- }
+ if (cb != NULL)
+ cb(s, SSL_CB_ACCEPT_EXIT, ret);
+ return (ret);
+}
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]);
- /* Always use DTLS 1.0 version: see RFC 6347 */
- *(p++) = DTLS1_VERSION >> 8;
- *(p++) = DTLS1_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));
- }
+{
+ 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]);
+ /* Always use DTLS 1.0 version: see RFC 6347 */
+ *(p++) = DTLS1_VERSION >> 8;
+ *(p++) = DTLS1_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);
+ s->state = SSL_ST_ERR;
+ 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));
+}
projects / openssl.git / blobdiff