Call OCSP Stapling callback after ciphersuite has been chosen, so the right response is stapled. Also change SSL_get_certificate() so it returns the certificate actually sent. See http://rt.openssl.org/Ticket/Display.html?id=2836.
diff --git a/CHANGES b/CHANGES index a39ad94..9cb1778 100644 --- a/CHANGES +++ b/CHANGES
@@ -346,6 +346,12 @@ Changes between 1.0.1 and 1.0.2 [xx XXX xxxx] + *) Call OCSP Stapling callback after ciphersuite has been chosen, so + the right response is stapled. Also change SSL_get_certificate() + so it returns the certificate actually sent. + See http://rt.openssl.org/Ticket/Display.html?id=2836. + [Rob Stradling <rob.stradling@comodo.com>] + *) Support for linux-x32, ILP32 environment in x86_64 framework. [Andy Polyakov]
diff --git a/ssl/s3_srvr.c b/ssl/s3_srvr.c index 76f49f7..3f0c1ef 100644 --- a/ssl/s3_srvr.c +++ b/ssl/s3_srvr.c
@@ -1432,6 +1432,16 @@ * s->tmp.new_cipher - the new cipher to use. */ + /* Handles TLS extensions that we couldn't check earlier */ + if (s->version >= SSL3_VERSION) + { + if (ssl_check_clienthello_tlsext_late(s) <= 0) + { + SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, SSL_R_CLIENTHELLO_TLSEXT); + goto err; + } + } + if (ret < 0) ret=1; if (0) {
diff --git a/ssl/ssl_lib.c b/ssl/ssl_lib.c index 4289a74..5a639c1 100644 --- a/ssl/ssl_lib.c +++ b/ssl/ssl_lib.c
@@ -2336,7 +2336,7 @@ #endif -static int ssl_get_server_cert_index(SSL *s) +static int ssl_get_server_cert_index(const SSL *s) { int idx; idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher); @@ -2347,7 +2347,7 @@ return idx; } -CERT_PKEY *ssl_get_server_send_pkey(SSL *s) +CERT_PKEY *ssl_get_server_send_pkey(const SSL *s) { CERT *c; int i; @@ -2833,6 +2833,14 @@ /* Fix this function so that it takes an optional type parameter */ X509 *SSL_get_certificate(const SSL *s) { + if (s->server) + { + CERT_PKEY *certpkey; + certpkey = ssl_get_server_send_pkey(s); + if (certpkey && certpkey->x509) + return certpkey->x509; + } + if (s->cert != NULL) return(s->cert->key->x509); else
diff --git a/ssl/ssl_locl.h b/ssl/ssl_locl.h index eb6ef4c..cb72ba3 100644 --- a/ssl/ssl_locl.h +++ b/ssl/ssl_locl.h
@@ -934,7 +934,7 @@ int ssl_undefined_function(SSL *s); int ssl_undefined_void_function(void); int ssl_undefined_const_function(const SSL *s); -CERT_PKEY *ssl_get_server_send_pkey(SSL *); +CERT_PKEY *ssl_get_server_send_pkey(const SSL *s); unsigned char *ssl_get_authz_data(SSL *s, size_t *authz_length); EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *c, const EVP_MD **pmd); int ssl_cert_type(X509 *x,EVP_PKEY *pkey); @@ -1201,6 +1201,7 @@ unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *p, unsigned char *limit); unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *p, unsigned char *limit); int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n); +int ssl_check_clienthello_tlsext_late(SSL *s); int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n); int ssl_prepare_clienthello_tlsext(SSL *s); int ssl_prepare_serverhello_tlsext(SSL *s);
diff --git a/ssl/t1_lib.c b/ssl/t1_lib.c index 8f54311..254221b 100644 --- a/ssl/t1_lib.c +++ b/ssl/t1_lib.c
@@ -123,7 +123,7 @@ static int tls_decrypt_ticket(SSL *s, const unsigned char *tick, int ticklen, const unsigned char *sess_id, int sesslen, SSL_SESSION **psess); -static int ssl_check_clienthello_tlsext(SSL *s); +static int ssl_check_clienthello_tlsext_early(SSL *s); int ssl_check_serverhello_tlsext(SSL *s); #endif @@ -2246,7 +2246,7 @@ return 0; } - if (ssl_check_clienthello_tlsext(s) <= 0) + if (ssl_check_clienthello_tlsext_early(s) <= 0) { SSLerr(SSL_F_SSL_PARSE_CLIENTHELLO_TLSEXT,SSL_R_CLIENTHELLO_TLSEXT); return 0; @@ -2647,7 +2647,7 @@ return 1; } -static int ssl_check_clienthello_tlsext(SSL *s) +static int ssl_check_clienthello_tlsext_early(SSL *s) { int ret=SSL_TLSEXT_ERR_NOACK; int al = SSL_AD_UNRECOGNIZED_NAME; @@ -2666,42 +2666,12 @@ else if (s->initial_ctx != NULL && s->initial_ctx->tlsext_servername_callback != 0) ret = s->initial_ctx->tlsext_servername_callback(s, &al, s->initial_ctx->tlsext_servername_arg); - /* If status request then ask callback what to do. - * Note: this must be called after servername callbacks in case - * the certificate has changed. - */ - if ((s->tlsext_status_type != -1) && s->ctx && s->ctx->tlsext_status_cb) - { - int r; - r = s->ctx->tlsext_status_cb(s, s->ctx->tlsext_status_arg); - switch (r) - { - /* We don't want to send a status request response */ - case SSL_TLSEXT_ERR_NOACK: - s->tlsext_status_expected = 0; - break; - /* status request response should be sent */ - case SSL_TLSEXT_ERR_OK: - if (s->tlsext_ocsp_resp) - s->tlsext_status_expected = 1; - else - s->tlsext_status_expected = 0; - break; - /* something bad happened */ - case SSL_TLSEXT_ERR_ALERT_FATAL: - ret = SSL_TLSEXT_ERR_ALERT_FATAL; - al = SSL_AD_INTERNAL_ERROR; - goto err; - } - } - else - s->tlsext_status_expected = 0; - #ifdef TLSEXT_TYPE_opaque_prf_input { /* This sort of belongs into ssl_prepare_serverhello_tlsext(), * but we might be sending an alert in response to the client hello, - * so this has to happen here in ssl_check_clienthello_tlsext(). */ + * so this has to happen here in + * ssl_check_clienthello_tlsext_early(). */ int r = 1; @@ -2753,8 +2723,8 @@ } } -#endif err: +#endif switch (ret) { case SSL_TLSEXT_ERR_ALERT_FATAL: @@ -2772,6 +2742,59 @@ } } +int ssl_check_clienthello_tlsext_late(SSL *s) + { + int ret = SSL_TLSEXT_ERR_OK; + int al; + + /* If status request then ask callback what to do. + * Note: this must be called after servername callbacks in case + * the certificate has changed, and must be called after the cipher + * has been chosen because this may influence which certificate is sent + */ + if ((s->tlsext_status_type != -1) && s->ctx && s->ctx->tlsext_status_cb) + { + int r; + r = s->ctx->tlsext_status_cb(s, s->ctx->tlsext_status_arg); + switch (r) + { + /* We don't want to send a status request response */ + case SSL_TLSEXT_ERR_NOACK: + s->tlsext_status_expected = 0; + break; + /* status request response should be sent */ + case SSL_TLSEXT_ERR_OK: + if (s->tlsext_ocsp_resp) + s->tlsext_status_expected = 1; + else + s->tlsext_status_expected = 0; + break; + /* something bad happened */ + case SSL_TLSEXT_ERR_ALERT_FATAL: + ret = SSL_TLSEXT_ERR_ALERT_FATAL; + al = SSL_AD_INTERNAL_ERROR; + goto err; + } + } + else + s->tlsext_status_expected = 0; + + err: + switch (ret) + { + case SSL_TLSEXT_ERR_ALERT_FATAL: + ssl3_send_alert(s, SSL3_AL_FATAL, al); + return -1; + + case SSL_TLSEXT_ERR_ALERT_WARNING: + ssl3_send_alert(s, SSL3_AL_WARNING, al); + return 1; + + default: + return 1; + } + } + int ssl_check_serverhello_tlsext(SSL *s) { int ret=SSL_TLSEXT_ERR_NOACK;