diff options
Diffstat (limited to 'ssl/s3_clnt.c')
| -rw-r--r-- | ssl/s3_clnt.c | 6546 |
1 files changed, 3171 insertions, 3375 deletions
diff --git a/ssl/s3_clnt.c b/ssl/s3_clnt.c index e7f5a98ed0..8960604090 100644 --- a/ssl/s3_clnt.c +++ b/ssl/s3_clnt.c @@ -5,21 +5,21 @@ * 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: @@ -34,10 +34,10 @@ * 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 @@ -49,7 +49,7 @@ * 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 @@ -63,7 +63,7 @@ * 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 @@ -111,7 +111,7 @@ /* ==================================================================== * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. * - * Portions of the attached software ("Contribution") are developed by + * Portions of the attached software ("Contribution") are developed by * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project. * * The Contribution is licensed pursuant to the OpenSSL open source @@ -157,3547 +157,3343 @@ #include <openssl/evp.h> #include <openssl/md5.h> #ifdef OPENSSL_FIPS -#include <openssl/fips.h> +# include <openssl/fips.h> #endif #ifndef OPENSSL_NO_DH -#include <openssl/dh.h> +# include <openssl/dh.h> #endif #include <openssl/bn.h> #ifndef OPENSSL_NO_ENGINE -#include <openssl/engine.h> +# include <openssl/engine.h> #endif -static int ca_dn_cmp(const X509_NAME * const *a,const X509_NAME * const *b); +static int ca_dn_cmp(const X509_NAME *const *a, const X509_NAME *const *b); #ifndef OPENSSL_NO_SSL3_METHOD static const SSL_METHOD *ssl3_get_client_method(int ver) - { - if (ver == SSL3_VERSION) - return(SSLv3_client_method()); - else - return(NULL); - } +{ + if (ver == SSL3_VERSION) + return (SSLv3_client_method()); + else + return (NULL); +} IMPLEMENT_ssl3_meth_func(SSLv3_client_method, - ssl_undefined_function, - ssl3_connect, - ssl3_get_client_method) + ssl_undefined_function, + ssl3_connect, ssl3_get_client_method) #endif - int ssl3_connect(SSL *s) - { - BUF_MEM *buf=NULL; - unsigned long Time=(unsigned long)time(NULL); - void (*cb)(const SSL *ssl,int type,int val)=NULL; - int ret= -1; - int new_state,state,skip=0; - - 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; - - s->in_handshake++; - if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s); +{ + BUF_MEM *buf = NULL; + unsigned long Time = (unsigned long)time(NULL); + void (*cb) (const SSL *ssl, int type, int val) = NULL; + int ret = -1; + int new_state, state, skip = 0; -#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) - { - s->tlsext_hb_pending = 0; - s->tlsext_hb_seq++; - } -#endif + RAND_add(&Time, sizeof(Time), 0); + ERR_clear_error(); + clear_sys_error(); - for (;;) - { - state=s->state; - - switch(s->state) - { - case SSL_ST_RENEGOTIATE: - s->renegotiate=1; - s->state=SSL_ST_CONNECT; - s->ctx->stats.sess_connect_renegotiate++; - /* break */ - case SSL_ST_BEFORE: - case SSL_ST_CONNECT: - case SSL_ST_BEFORE|SSL_ST_CONNECT: - case SSL_ST_OK|SSL_ST_CONNECT: - - s->server=0; - if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1); - - if ((s->version & 0xff00 ) != 0x0300) - { - SSLerr(SSL_F_SSL3_CONNECT, ERR_R_INTERNAL_ERROR); - ret = -1; - goto end; - } - - /* s->version=SSL3_VERSION; */ - s->type=SSL_ST_CONNECT; - - 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; - buf=NULL; - } - - if (!ssl3_setup_buffers(s)) { ret= -1; goto end; } - - /* setup buffing BIO */ - if (!ssl_init_wbio_buffer(s,0)) { ret= -1; goto end; } - - /* don't push the buffering BIO quite yet */ - - ssl3_init_finished_mac(s); - - s->state=SSL3_ST_CW_CLNT_HELLO_A; - s->ctx->stats.sess_connect++; - s->init_num=0; - s->s3->flags &= ~SSL3_FLAGS_CCS_OK; - /* Should have been reset by ssl3_get_finished, too. */ - s->s3->change_cipher_spec = 0; - break; - - case SSL3_ST_CW_CLNT_HELLO_A: - case SSL3_ST_CW_CLNT_HELLO_B: - - s->shutdown=0; - ret=ssl3_client_hello(s); - if (ret <= 0) goto end; - s->state=SSL3_ST_CR_SRVR_HELLO_A; - s->init_num=0; - - /* turn on buffering for the next lot of output */ - if (s->bbio != s->wbio) - s->wbio=BIO_push(s->bbio,s->wbio); - - break; - - case SSL3_ST_CR_SRVR_HELLO_A: - case SSL3_ST_CR_SRVR_HELLO_B: - ret=ssl3_get_server_hello(s); - if (ret <= 0) goto end; - - if (s->hit) - { - s->state=SSL3_ST_CR_FINISHED_A; + if (s->info_callback != NULL) + cb = s->info_callback; + else if (s->ctx->info_callback != NULL) + cb = s->ctx->info_callback; + + s->in_handshake++; + if (!SSL_in_init(s) || SSL_in_before(s)) + SSL_clear(s); + +#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) { + 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_CONNECT; + s->ctx->stats.sess_connect_renegotiate++; + /* break */ + case SSL_ST_BEFORE: + case SSL_ST_CONNECT: + case SSL_ST_BEFORE | SSL_ST_CONNECT: + case SSL_ST_OK | SSL_ST_CONNECT: + + s->server = 0; + if (cb != NULL) + cb(s, SSL_CB_HANDSHAKE_START, 1); + + if ((s->version & 0xff00) != 0x0300) { + SSLerr(SSL_F_SSL3_CONNECT, ERR_R_INTERNAL_ERROR); + ret = -1; + goto end; + } + + /* s->version=SSL3_VERSION; */ + s->type = SSL_ST_CONNECT; + + 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; + buf = NULL; + } + + if (!ssl3_setup_buffers(s)) { + ret = -1; + goto end; + } + + /* setup buffing BIO */ + if (!ssl_init_wbio_buffer(s, 0)) { + ret = -1; + goto end; + } + + /* don't push the buffering BIO quite yet */ + + ssl3_init_finished_mac(s); + + s->state = SSL3_ST_CW_CLNT_HELLO_A; + s->ctx->stats.sess_connect++; + s->init_num = 0; + s->s3->flags &= ~SSL3_FLAGS_CCS_OK; + /* + * Should have been reset by ssl3_get_finished, too. + */ + s->s3->change_cipher_spec = 0; + break; + + case SSL3_ST_CW_CLNT_HELLO_A: + case SSL3_ST_CW_CLNT_HELLO_B: + + s->shutdown = 0; + ret = ssl3_client_hello(s); + if (ret <= 0) + goto end; + s->state = SSL3_ST_CR_SRVR_HELLO_A; + s->init_num = 0; + + /* turn on buffering for the next lot of output */ + if (s->bbio != s->wbio) + s->wbio = BIO_push(s->bbio, s->wbio); + + break; + + case SSL3_ST_CR_SRVR_HELLO_A: + case SSL3_ST_CR_SRVR_HELLO_B: + ret = ssl3_get_server_hello(s); + if (ret <= 0) + goto end; + + if (s->hit) { + s->state = SSL3_ST_CR_FINISHED_A; #ifndef OPENSSL_NO_TLSEXT - if (s->tlsext_ticket_expected) - { - /* receive renewed session ticket */ - s->state=SSL3_ST_CR_SESSION_TICKET_A; - } -#endif - } - else - { - s->state=SSL3_ST_CR_CERT_A; - } - s->init_num=0; - break; - case SSL3_ST_CR_CERT_A: - case SSL3_ST_CR_CERT_B: - /* Check if it is anon DH/ECDH, SRP auth */ - /* or PSK */ - if (!(s->s3->tmp.new_cipher->algorithm_auth & (SSL_aNULL|SSL_aSRP)) && - !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK)) - { - ret=ssl3_get_server_certificate(s); - if (ret <= 0) goto end; + if (s->tlsext_ticket_expected) { + /* receive renewed session ticket */ + s->state = SSL3_ST_CR_SESSION_TICKET_A; + } +#endif + } else { + s->state = SSL3_ST_CR_CERT_A; + } + s->init_num = 0; + break; + case SSL3_ST_CR_CERT_A: + case SSL3_ST_CR_CERT_B: + /* Check if it is anon DH/ECDH, SRP auth */ + /* or PSK */ + if (! + (s->s3->tmp. + new_cipher->algorithm_auth & (SSL_aNULL | SSL_aSRP)) +&& !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK)) { + ret = ssl3_get_server_certificate(s); + if (ret <= 0) + goto end; #ifndef OPENSSL_NO_TLSEXT - if (s->tlsext_status_expected) - s->state=SSL3_ST_CR_CERT_STATUS_A; - else - s->state=SSL3_ST_CR_KEY_EXCH_A; - } - else - { - skip = 1; - s->state=SSL3_ST_CR_KEY_EXCH_A; - } + if (s->tlsext_status_expected) + s->state = SSL3_ST_CR_CERT_STATUS_A; + else + s->state = SSL3_ST_CR_KEY_EXCH_A; + } else { + skip = 1; + s->state = SSL3_ST_CR_KEY_EXCH_A; + } #else - } - else - skip=1; - - s->state=SSL3_ST_CR_KEY_EXCH_A; -#endif - s->init_num=0; - break; - - case SSL3_ST_CR_KEY_EXCH_A: - case SSL3_ST_CR_KEY_EXCH_B: - ret=ssl3_get_key_exchange(s); - if (ret <= 0) goto end; - s->state=SSL3_ST_CR_CERT_REQ_A; - s->init_num=0; - - /* at this point we check that we have the - * required stuff from the server */ - if (!ssl3_check_cert_and_algorithm(s)) - { - ret= -1; - goto end; - } - break; - - case SSL3_ST_CR_CERT_REQ_A: - case SSL3_ST_CR_CERT_REQ_B: - ret=ssl3_get_certificate_request(s); - if (ret <= 0) goto end; - s->state=SSL3_ST_CR_SRVR_DONE_A; - s->init_num=0; - break; - - case SSL3_ST_CR_SRVR_DONE_A: - case SSL3_ST_CR_SRVR_DONE_B: - ret=ssl3_get_server_done(s); - if (ret <= 0) goto end; + } else + skip = 1; + + s->state = SSL3_ST_CR_KEY_EXCH_A; +#endif + s->init_num = 0; + break; + + case SSL3_ST_CR_KEY_EXCH_A: + case SSL3_ST_CR_KEY_EXCH_B: + ret = ssl3_get_key_exchange(s); + if (ret <= 0) + goto end; + s->state = SSL3_ST_CR_CERT_REQ_A; + s->init_num = 0; + + /* + * at this point we check that we have the required stuff from + * the server + */ + if (!ssl3_check_cert_and_algorithm(s)) { + ret = -1; + goto end; + } + break; + + case SSL3_ST_CR_CERT_REQ_A: + case SSL3_ST_CR_CERT_REQ_B: + ret = ssl3_get_certificate_request(s); + if (ret <= 0) + goto end; + s->state = SSL3_ST_CR_SRVR_DONE_A; + s->init_num = 0; + break; + + case SSL3_ST_CR_SRVR_DONE_A: + case SSL3_ST_CR_SRVR_DONE_B: + ret = ssl3_get_server_done(s); + if (ret <= 0) + goto end; #ifndef OPENSSL_NO_SRP - if (s->s3->tmp.new_cipher->algorithm_mkey & SSL_kSRP) - { - if ((ret = SRP_Calc_A_param(s))<=0) - { - SSLerr(SSL_F_SSL3_CONNECT,SSL_R_SRP_A_CALC); - ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_INTERNAL_ERROR); - goto end; - } - } -#endif - if (s->s3->tmp.cert_req) - s->state=SSL3_ST_CW_CERT_A; - else - s->state=SSL3_ST_CW_KEY_EXCH_A; - s->init_num=0; - - break; - - case SSL3_ST_CW_CERT_A: - case SSL3_ST_CW_CERT_B: - case SSL3_ST_CW_CERT_C: - case SSL3_ST_CW_CERT_D: - ret=ssl3_send_client_certificate(s); - if (ret <= 0) goto end; - s->state=SSL3_ST_CW_KEY_EXCH_A; - s->init_num=0; - break; - - case SSL3_ST_CW_KEY_EXCH_A: - case SSL3_ST_CW_KEY_EXCH_B: - ret=ssl3_send_client_key_exchange(s); - if (ret <= 0) goto end; - /* EAY EAY EAY need to check for DH fix cert - * sent back */ - /* For TLS, cert_req is set to 2, so a cert chain - * of nothing is sent, but no verify packet is sent */ - /* XXX: For now, we do not support client - * authentication in ECDH cipher suites with - * ECDH (rather than ECDSA) certificates. - * We need to skip the certificate verify - * message when client's ECDH public key is sent - * inside the client certificate. - */ - if (s->s3->tmp.cert_req == 1) - { - s->state=SSL3_ST_CW_CERT_VRFY_A; - } - else - { - s->state=SSL3_ST_CW_CHANGE_A; - } - if (s->s3->flags & TLS1_FLAGS_SKIP_CERT_VERIFY) - { - s->state=SSL3_ST_CW_CHANGE_A; - } - - s->init_num=0; - break; - - case SSL3_ST_CW_CERT_VRFY_A: - case SSL3_ST_CW_CERT_VRFY_B: - ret=ssl3_send_client_verify(s); - if (ret <= 0) goto end; - s->state=SSL3_ST_CW_CHANGE_A; - s->init_num=0; - break; - - case SSL3_ST_CW_CHANGE_A: - case SSL3_ST_CW_CHANGE_B: - ret=ssl3_send_change_cipher_spec(s, - SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B); - if (ret <= 0) goto end; + if (s->s3->tmp.new_cipher->algorithm_mkey & SSL_kSRP) { + if ((ret = SRP_Calc_A_param(s)) <= 0) { + SSLerr(SSL_F_SSL3_CONNECT, SSL_R_SRP_A_CALC); + ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR); + goto end; + } + } +#endif + if (s->s3->tmp.cert_req) + s->state = SSL3_ST_CW_CERT_A; + else + s->state = SSL3_ST_CW_KEY_EXCH_A; + s->init_num = 0; + + break; + + case SSL3_ST_CW_CERT_A: + case SSL3_ST_CW_CERT_B: + case SSL3_ST_CW_CERT_C: + case SSL3_ST_CW_CERT_D: + ret = ssl3_send_client_certificate(s); + if (ret <= 0) + goto end; + s->state = SSL3_ST_CW_KEY_EXCH_A; + s->init_num = 0; + break; + + case SSL3_ST_CW_KEY_EXCH_A: + case SSL3_ST_CW_KEY_EXCH_B: + ret = ssl3_send_client_key_exchange(s); + if (ret <= 0) + goto end; + /* + * EAY EAY EAY need to check for DH fix cert sent back + */ + /* + * For TLS, cert_req is set to 2, so a cert chain of nothing is + * sent, but no verify packet is sent + */ + /* + * XXX: For now, we do not support client authentication in ECDH + * cipher suites with ECDH (rather than ECDSA) certificates. We + * need to skip the certificate verify message when client's + * ECDH public key is sent inside the client certificate. + */ + if (s->s3->tmp.cert_req == 1) { + s->state = SSL3_ST_CW_CERT_VRFY_A; + } else { + s->state = SSL3_ST_CW_CHANGE_A; + } + if (s->s3->flags & TLS1_FLAGS_SKIP_CERT_VERIFY) { + s->state = SSL3_ST_CW_CHANGE_A; + } + + s->init_num = 0; + break; + + case SSL3_ST_CW_CERT_VRFY_A: + case SSL3_ST_CW_CERT_VRFY_B: + ret = ssl3_send_client_verify(s); + if (ret <= 0) + goto end; + s->state = SSL3_ST_CW_CHANGE_A; + s->init_num = 0; + break; + + case SSL3_ST_CW_CHANGE_A: + case SSL3_ST_CW_CHANGE_B: + ret = ssl3_send_change_cipher_spec(s, + SSL3_ST_CW_CHANGE_A, + SSL3_ST_CW_CHANGE_B); + if (ret <= 0) + goto end; #if defined(OPENSSL_NO_TLSEXT) || defined(OPENSSL_NO_NEXTPROTONEG) - s->state=SSL3_ST_CW_FINISHED_A; + s->state = SSL3_ST_CW_FINISHED_A; #else - if (s->s3->next_proto_neg_seen) - s->state=SSL3_ST_CW_NEXT_PROTO_A; - else - s->state=SSL3_ST_CW_FINISHED_A; + if (s->s3->next_proto_neg_seen) + s->state = SSL3_ST_CW_NEXT_PROTO_A; + else + s->state = SSL3_ST_CW_FINISHED_A; #endif - s->init_num=0; + s->init_num = 0; - s->session->cipher=s->s3->tmp.new_cipher; + s->session->cipher = s->s3->tmp.new_cipher; #ifdef OPENSSL_NO_COMP - s->session->compress_meth=0; + s->session->compress_meth = 0; #else - if (s->s3->tmp.new_compression == NULL) - s->session->compress_meth=0; - else - s->session->compress_meth= - s->s3->tmp.new_compression->id; + if (s->s3->tmp.new_compression == NULL) + s->session->compress_meth = 0; + else + s->session->compress_meth = s->s3->tmp.new_compression->id; #endif - if (!s->method->ssl3_enc->setup_key_block(s)) - { - ret= -1; - goto end; - } + if (!s->method->ssl3_enc->setup_key_block(s)) { + ret = -1; + goto end; + } - if (!s->method->ssl3_enc->change_cipher_state(s, - SSL3_CHANGE_CIPHER_CLIENT_WRITE)) - { - ret= -1; - goto end; - } + if (!s->method->ssl3_enc->change_cipher_state(s, + SSL3_CHANGE_CIPHER_CLIENT_WRITE)) + { + ret = -1; + goto end; + } - break; + break; #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) - case SSL3_ST_CW_NEXT_PROTO_A: - case SSL3_ST_CW_NEXT_PROTO_B: - ret=ssl3_send_next_proto(s); - if (ret <= 0) goto end; - s->state=SSL3_ST_CW_FINISHED_A; - break; -#endif - - case SSL3_ST_CW_FINISHED_A: - case SSL3_ST_CW_FINISHED_B: - ret=ssl3_send_finished(s, - SSL3_ST_CW_FINISHED_A,SSL3_ST_CW_FINISHED_B, - s->method->ssl3_enc->client_finished_label, - s->method->ssl3_enc->client_finished_label_len); - if (ret <= 0) goto end; - s->state=SSL3_ST_CW_FLUSH; - - /* clear flags */ - s->s3->flags&= ~SSL3_FLAGS_POP_BUFFER; - if (s->hit) - { - s->s3->tmp.next_state=SSL_ST_OK; - if (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED) - { - s->state=SSL_ST_OK; - s->s3->flags|=SSL3_FLAGS_POP_BUFFER; - s->s3->delay_buf_pop_ret=0; - } - } - else - { -#ifndef OPENSSL_NO_TLSEXT - /* Allow NewSessionTicket if ticket expected */ - if (s->tlsext_ticket_expected) - s->s3->tmp.next_state=SSL3_ST_CR_SESSION_TICKET_A; - else -#endif - - s->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A; - } - s->init_num=0; - break; - + case SSL3_ST_CW_NEXT_PROTO_A: + case SSL3_ST_CW_NEXT_PROTO_B: + ret = ssl3_send_next_proto(s); + if (ret <= 0) + goto end; + s->state = SSL3_ST_CW_FINISHED_A; + break; +#endif + + case SSL3_ST_CW_FINISHED_A: + case SSL3_ST_CW_FINISHED_B: + ret = ssl3_send_finished(s, + SSL3_ST_CW_FINISHED_A, + SSL3_ST_CW_FINISHED_B, + s->method-> + ssl3_enc->client_finished_label, + s->method-> + ssl3_enc->client_finished_label_len); + if (ret <= 0) + goto end; + s->state = SSL3_ST_CW_FLUSH; + + /* clear flags */ + s->s3->flags &= ~SSL3_FLAGS_POP_BUFFER; + if (s->hit) { + s->s3->tmp.next_state = SSL_ST_OK; + if (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED) { + s->state = SSL_ST_OK; + s->s3->flags |= SSL3_FLAGS_POP_BUFFER; + s->s3->delay_buf_pop_ret = 0; + } + } else { #ifndef OPENSSL_NO_TLSEXT - case SSL3_ST_CR_SESSION_TICKET_A: - case SSL3_ST_CR_SESSION_TICKET_B: - ret=ssl3_get_new_session_ticket(s); - if (ret <= 0) goto end; - s->state=SSL3_ST_CR_FINISHED_A; - s->init_num=0; - break; - - case SSL3_ST_CR_CERT_STATUS_A: - case SSL3_ST_CR_CERT_STATUS_B: - ret=ssl3_get_cert_status(s); - if (ret <= 0) goto end; - s->state=SSL3_ST_CR_KEY_EXCH_A; - s->init_num=0; - break; + /* + * Allow NewSessionTicket if ticket expected + */ + if (s->tlsext_ticket_expected) + s->s3->tmp.next_state = SSL3_ST_CR_SESSION_TICKET_A; + else #endif - case SSL3_ST_CR_FINISHED_A: - case SSL3_ST_CR_FINISHED_B: - s->s3->flags |= SSL3_FLAGS_CCS_OK; - ret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A, - SSL3_ST_CR_FINISHED_B); - if (ret <= 0) goto end; - - if (s->hit) - s->state=SSL3_ST_CW_CHANGE_A; - else - s->state=SSL_ST_OK; - s->init_num=0; - break; - - case SSL3_ST_CW_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 SSL_ST_OK: - /* clean a few things up */ - ssl3_cleanup_key_block(s); - - if (s->init_buf != NULL) - { - BUF_MEM_free(s->init_buf); - s->init_buf=NULL; - } - - /* If we are not 'joining' the last two packets, - * remove the buffering now */ - if (!(s->s3->flags & SSL3_FLAGS_POP_BUFFER)) - ssl_free_wbio_buffer(s); - /* else do it later in ssl3_write */ - - s->init_num=0; - s->renegotiate=0; - s->new_session=0; - - ssl_update_cache(s,SSL_SESS_CACHE_CLIENT); - if (s->hit) s->ctx->stats.sess_hit++; - - ret=1; - /* s->server=0; */ - s->handshake_func=ssl3_connect; - s->ctx->stats.sess_connect_good++; - - if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1); - - goto end; - /* break; */ - - default: - SSLerr(SSL_F_SSL3_CONNECT,SSL_R_UNKNOWN_STATE); - ret= -1; - goto end; - /* break; */ - } - - /* did we do anything */ - 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_CONNECT_LOOP,1); - s->state=new_state; - } - } - skip=0; - } -end: - s->in_handshake--; - if (buf != NULL) - BUF_MEM_free(buf); - if (cb != NULL) - cb(s,SSL_CB_CONNECT_EXIT,ret); - return(ret); - } + s->s3->tmp.next_state = SSL3_ST_CR_FINISHED_A; + } + s->init_num = 0; + break; +#ifndef OPENSSL_NO_TLSEXT + case SSL3_ST_CR_SESSION_TICKET_A: + case SSL3_ST_CR_SESSION_TICKET_B: + ret = ssl3_get_new_session_ticket(s); + if (ret <= 0) + goto end; + s->state = SSL3_ST_CR_FINISHED_A; + s->init_num = 0; + break; + + case SSL3_ST_CR_CERT_STATUS_A: + case SSL3_ST_CR_CERT_STATUS_B: + ret = ssl3_get_cert_status(s); + if (ret <= 0) + goto end; + s->state = SSL3_ST_CR_KEY_EXCH_A; + s->init_num = 0; + break; +#endif + + case SSL3_ST_CR_FINISHED_A: + case SSL3_ST_CR_FINISHED_B: + s->s3->flags |= SSL3_FLAGS_CCS_OK; + ret = ssl3_get_finished(s, SSL3_ST_CR_FINISHED_A, + SSL3_ST_CR_FINISHED_B); + if (ret <= 0) + goto end; + + if (s->hit) + s->state = SSL3_ST_CW_CHANGE_A; + else + s->state = SSL_ST_OK; + s->init_num = 0; + break; + + case SSL3_ST_CW_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 SSL_ST_OK: + /* clean a few things up */ + ssl3_cleanup_key_block(s); + + if (s->init_buf != NULL) { + BUF_MEM_free(s->init_buf); + s->init_buf = NULL; + } + + /* + * If we are not 'joining' the last two packets, remove the + * buffering now + */ + if (!(s->s3->flags & SSL3_FLAGS_POP_BUFFER)) + ssl_free_wbio_buffer(s); + /* else do it later in ssl3_write */ + + s->init_num = 0; + s->renegotiate = 0; + s->new_session = 0; + + ssl_update_cache(s, SSL_SESS_CACHE_CLIENT); + if (s->hit) + s->ctx->stats.sess_hit++; + + ret = 1; + /* s->server=0; */ + s->handshake_func = ssl3_connect; + s->ctx->stats.sess_connect_good++; + + if (cb != NULL) + cb(s, SSL_CB_HANDSHAKE_DONE, 1); + + goto end; + /* break; */ + + default: + SSLerr(SSL_F_SSL3_CONNECT, SSL_R_UNKNOWN_STATE); + ret = -1; + goto end; + /* break; */ + } + + /* did we do anything */ + 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_CONNECT_LOOP, 1); + s->state = new_state; + } + } + skip = 0; + } + end: + s->in_handshake--; + if (buf != NULL) + BUF_MEM_free(buf); + if (cb != NULL) + cb(s, SSL_CB_CONNECT_EXIT, ret); + return (ret); +} int ssl3_client_hello(SSL *s) - { - unsigned char *buf; - unsigned char *p,*d; - int i; - unsigned long l; - int al = 0; +{ + unsigned char *buf; + unsigned char *p, *d; + int i; + unsigned long l; + int al = 0; #ifndef OPENSSL_NO_COMP - int j; - SSL_COMP *comp; -#endif - - buf=(unsigned char *)s->init_buf->data; - if (s->state == SSL3_ST_CW_CLNT_HELLO_A) - { - SSL_SESSION *sess = s->session; - if ((sess == NULL) || - (sess->ssl_version != s->version) || - !sess->session_id_length || - (sess->not_resumable)) - { - if (!ssl_get_new_session(s,0)) - goto err; - } - if (s->method->version == DTLS_ANY_VERSION) - { - /* Determine which DTLS version to use */ - int options = s->options; - /* If DTLS 1.2 disabled correct the version number */ - if (options & SSL_OP_NO_DTLSv1_2) - { - if (tls1_suiteb(s)) - { - SSLerr(SSL_F_SSL3_CLIENT_HELLO, SSL_R_ONLY_DTLS_1_2_ALLOWED_IN_SUITEB_MODE); - goto err; - } - /* Disabling all versions is silly: return an - * error. - */ - if (options & SSL_OP_NO_DTLSv1) - { - SSLerr(SSL_F_SSL3_CLIENT_HELLO,SSL_R_WRONG_SSL_VERSION); - goto err; - } - /* Update method so we don't use any DTLS 1.2 - * features. - */ - s->method = DTLSv1_client_method(); - s->version = DTLS1_VERSION; - } - else - { - /* We only support one version: update method */ - if (options & SSL_OP_NO_DTLSv1) - s->method = DTLSv1_2_client_method(); - s->version = DTLS1_2_VERSION; - } - s->client_version = s->version; - } - /* else use the pre-loaded session */ - - p=s->s3->client_random; - - /* for DTLS if client_random is initialized, reuse it, we are - * required to use same upon reply to HelloVerify */ - if (SSL_IS_DTLS(s)) - { - size_t idx; - i = 1; - for (idx=0; idx < sizeof(s->s3->client_random); idx++) - { - if (p[idx]) - { - i = 0; - break; - } - } - } - else - i = 1; - - if (i) - ssl_fill_hello_random(s, 0, p, - sizeof(s->s3->client_random)); - - /* Do the message type and length last */ - d=p= ssl_handshake_start(s); - - /*- - * version indicates the negotiated version: for example from - * an SSLv2/v3 compatible client hello). The client_version - * field is the maximum version we permit and it is also - * used in RSA encrypted premaster secrets. Some servers can - * choke if we initially report a higher version then - * renegotiate to a lower one in the premaster secret. This - * didn't happen with TLS 1.0 as most servers supported it - * but it can with TLS 1.1 or later if the server only supports - * 1.0. - * - * Possible scenario with previous logic: - * 1. Client hello indicates TLS 1.2 - * 2. Server hello says TLS 1.0 - * 3. RSA encrypted premaster secret uses 1.2. - * 4. Handhaked proceeds using TLS 1.0. - * 5. Server sends hello request to renegotiate. - * 6. Client hello indicates TLS v1.0 as we now - * know that is maximum server supports. - * 7. Server chokes on RSA encrypted premaster secret - * containing version 1.0. - * - |