diff options
Diffstat (limited to 'ssl/d1_srvr.c')
-rw-r--r-- | ssl/d1_srvr.c | 2254 |
1 files changed, 1127 insertions, 1127 deletions
diff --git a/ssl/d1_srvr.c b/ssl/d1_srvr.c index 0e9bb204ad..57f9ac8e96 100644 --- a/ssl/d1_srvr.c +++ b/ssl/d1_srvr.c @@ -1,7 +1,7 @@ /* 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) 1999-2005 The OpenSSL Project. All rights reserved. @@ -11,7 +11,7 @@ * 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 @@ -62,21 +62,21 @@ * 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: @@ -91,10 +91,10 @@ * 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 @@ -106,7 +106,7 @@ * 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 @@ -122,1210 +122,1210 @@ #include <openssl/x509.h> #include <openssl/md5.h> #ifndef OPENSSL_NO_DH -#include <openssl/dh.h> +# include <openssl/dh.h> #endif static SSL_METHOD *dtls1_get_server_method(int ver); static int dtls1_send_hello_verify_request(SSL *s); static SSL_METHOD *dtls1_get_server_method(int ver) - { - if (ver == DTLS1_VERSION) - return(DTLSv1_server_method()); - else - return(NULL); - } +{ + 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) + dtls1_accept, + ssl_undefined_function, dtls1_get_server_method) int dtls1_accept(SSL *s) - { - BUF_MEM *buf; - unsigned long l,Time=(unsigned long)time(NULL); - void (*cb)(const SSL *ssl,int type,int val)=NULL; - int ret= -1; - int new_state,state,skip=0; - int listen; - - 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; - - if (s->cert == NULL) - { - SSLerr(SSL_F_DTLS1_ACCEPT,SSL_R_NO_CERTIFICATE_SET); - return(-1); - } - - for (;;) - { - state=s->state; - - switch (s->state) - { - case SSL_ST_RENEGOTIATE: - s->new_session=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 :-) - */ - 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=dtls1_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; - - /* HelloVerifyRequests resets Finished MAC */ - if (s->client_version != DTLS1_BAD_VER) - ssl3_init_finished_mac(s); - break; - - case SSL3_ST_SW_SRVR_HELLO_A: - case SSL3_ST_SW_SRVR_HELLO_B: - s->new_session = 2; - dtls1_start_timer(s); - ret=dtls1_send_server_hello(s); - if (ret <= 0) goto end; +{ + BUF_MEM *buf; + unsigned long l, Time = (unsigned long)time(NULL); + void (*cb) (const SSL *ssl, int type, int val) = NULL; + int ret = -1; + int new_state, state, skip = 0; + int listen; + + 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; + + if (s->cert == NULL) { + SSLerr(SSL_F_DTLS1_ACCEPT, SSL_R_NO_CERTIFICATE_SET); + return (-1); + } + + for (;;) { + state = s->state; + + switch (s->state) { + case SSL_ST_RENEGOTIATE: + s->new_session = 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 :-) + */ + 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 = dtls1_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; + + /* HelloVerifyRequests resets Finished MAC */ + if (s->client_version != DTLS1_BAD_VER) + ssl3_init_finished_mac(s); + break; + + case SSL3_ST_SW_SRVR_HELLO_A: + case SSL3_ST_SW_SRVR_HELLO_B: + s->new_session = 2; + dtls1_start_timer(s); + ret = dtls1_send_server_hello(s); + if (ret <= 0) + goto end; #ifndef OPENSSL_NO_TLSEXT - if (s->hit) - { - if (s->tlsext_ticket_expected) - s->state=SSL3_ST_SW_SESSION_TICKET_A; - else - s->state=SSL3_ST_SW_CHANGE_A; - } + if (s->hit) { + if (s->tlsext_ticket_expected) + s->state = SSL3_ST_SW_SESSION_TICKET_A; + else + s->state = SSL3_ST_SW_CHANGE_A; + } #else - if (s->hit) - s->state=SSL3_ST_SW_CHANGE_A; + if (s->hit) + 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 */ - if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL)) - { - dtls1_start_timer(s); - ret=dtls1_send_server_certificate(s); - if (ret <= 0) goto end; + 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 */ + if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL)) { + 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; - } + 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; + } else + skip = 1; - s->state=SSL3_ST_SW_KEY_EXCH_A; + 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: - l=s->s3->tmp.new_cipher->algorithms; - - /* 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, fortezza or - * RSA but we have a sign only certificate */ - if ((l & (SSL_DH|SSL_kFZA)) - || ((l & 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->algorithms & 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->algorithms & SSL_aKRB5)) - { - /* no cert request */ - skip=1; - s->s3->tmp.cert_request=0; - s->state=SSL3_ST_SW_SRVR_DONE_A; - } - else - { - s->s3->tmp.cert_request=1; - dtls1_start_timer(s); - ret=dtls1_send_certificate_request(s); - if (ret <= 0) goto end; + s->init_num = 0; + break; + + case SSL3_ST_SW_KEY_EXCH_A: + case SSL3_ST_SW_KEY_EXCH_B: + l = s->s3->tmp.new_cipher->algorithms; + + /* + * 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, fortezza or RSA but we have a + * sign only certificate + */ + if ((l & (SSL_DH | SSL_kFZA)) + || ((l & 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->algorithms & 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->algorithms & SSL_aKRB5)) { + /* no cert request */ + skip = 1; + s->s3->tmp.cert_request = 0; + s->state = SSL3_ST_SW_SRVR_DONE_A; + } 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; + s->state = SSL3_ST_SW_SRVR_DONE_A; #else - s->state=SSL3_ST_SW_FLUSH; - s->s3->tmp.next_state=SSL3_ST_SR_CERT_A; + s->state = SSL3_ST_SW_FLUSH; + s->s3->tmp.next_state = SSL3_ST_SR_CERT_A; #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) - { - 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 { - 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; - 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, - &(s->s3->finish_dgst1), - &(s->s3->tmp.cert_verify_md[0])); - s->method->ssl3_enc->cert_verify_mac(s, - &(s->s3->finish_dgst2), - &(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_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; + 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) { + 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 { + 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; + 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, + &(s->s3->finish_dgst1), + &(s->s3-> + tmp.cert_verify_md[0])); + s->method->ssl3_enc->cert_verify_mac(s, &(s->s3->finish_dgst2), + &(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_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; + 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; + 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; + 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; - 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; - s->init_num=0; - break; - - case SSL_ST_OK: - /* clean a few things up */ - ssl3_cleanup_key_block(s); + 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_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; + 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; + 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->new_session == 2) /* skipped if we just sent a HelloRequest */ - { - /* actually not necessarily a 'new' session unless - * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set */ - - 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--; - if (cb != NULL) - cb(s,SSL_CB_ACCEPT_EXIT,ret); - return(ret); - } + /* remove buffering on output */ + ssl_free_wbio_buffer(s); + + s->init_num = 0; + + if (s->new_session == 2) { /* skipped if we just sent a + * HelloRequest */ + /* + * actually not necessarily a 'new' session unless + * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set + */ + + s->new_session = 0; + + ssl_update_cache(s, SSL_SESS_CACHE_SERVER); + + s->ctx->stats.sess_accept_good++; + |