/* The spec allows for a longer length than this, but we limit it */
#define HELLO_VERIFY_REQUEST_MAX_LENGTH 258
#define SERVER_HELLO_MAX_LENGTH 20000
+#define HELLO_RETRY_REQUEST_MAX_LENGTH 20000
#define ENCRYPTED_EXTENSIONS_MAX_LENGTH 20000
#define SERVER_KEY_EXCH_MAX_LENGTH 102400
#define SERVER_HELLO_DONE_MAX_LENGTH 0
+#define KEY_UPDATE_MAX_LENGTH 1
#define CCS_MAX_LENGTH 1
/* Max should actually be 36 but we are generous */
#define FINISHED_MAX_LENGTH 64
+/* The maximum number of incoming KeyUpdate messages we will accept */
+#define MAX_KEY_UPDATE_MESSAGES 32
+
/* Extension context codes */
/* This extension is only allowed in TLS */
#define EXT_TLS_ONLY 0x0001
typedef int (*confunc_f) (SSL *s, WPACKET *pkt);
+int check_in_list(SSL *s, unsigned int group_id, const unsigned char *groups,
+ size_t num_groups, int checkallow);
+
/*
* TLS/DTLS client state machine functions
*/
__owur int dtls_construct_change_cipher_spec(SSL *s, WPACKET *pkt);
__owur int tls_construct_finished(SSL *s, WPACKET *pkt);
-__owur WORK_STATE tls_finish_handshake(SSL *s, WORK_STATE wst);
+__owur int tls_construct_key_update(SSL *s, WPACKET *pkt);
+__owur MSG_PROCESS_RETURN tls_process_key_update(SSL *s, PACKET *pkt);
+__owur WORK_STATE tls_finish_handshake(SSL *s, WORK_STATE wst, int clearbufs);
__owur WORK_STATE dtls_wait_for_dry(SSL *s);
/* some client-only functions */
__owur MSG_PROCESS_RETURN tls_process_server_hello(SSL *s, PACKET *pkt);
__owur MSG_PROCESS_RETURN tls_process_certificate_request(SSL *s, PACKET *pkt);
__owur MSG_PROCESS_RETURN tls_process_new_session_ticket(SSL *s, PACKET *pkt);
+__owur int tls_process_cert_status_body(SSL *s, PACKET *pkt, int *al);
__owur MSG_PROCESS_RETURN tls_process_cert_status(SSL *s, PACKET *pkt);
__owur MSG_PROCESS_RETURN tls_process_server_done(SSL *s, PACKET *pkt);
-__owur int tls_construct_client_verify(SSL *s, WPACKET *pkt);
+__owur int tls_construct_cert_verify(SSL *s, WPACKET *pkt);
__owur WORK_STATE tls_prepare_client_certificate(SSL *s, WORK_STATE wst);
__owur int tls_construct_client_certificate(SSL *s, WPACKET *pkt);
__owur int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey);
__owur int tls_construct_client_key_exchange(SSL *s, WPACKET *pkt);
__owur int tls_client_key_exchange_post_work(SSL *s);
+__owur int tls_construct_cert_status_body(SSL *s, WPACKET *pkt);
__owur int tls_construct_cert_status(SSL *s, WPACKET *pkt);
__owur MSG_PROCESS_RETURN tls_process_key_exchange(SSL *s, PACKET *pkt);
__owur MSG_PROCESS_RETURN tls_process_server_certificate(SSL *s, PACKET *pkt);
#ifndef OPENSSL_NO_NEXTPROTONEG
__owur int tls_construct_next_proto(SSL *s, WPACKET *pkt);
#endif
+__owur MSG_PROCESS_RETURN tls_process_hello_req(SSL *s, PACKET *pkt);
__owur MSG_PROCESS_RETURN dtls_process_hello_verify(SSL *s, PACKET *pkt);
/* some server-only functions */
/* Extension processing */
__owur int tls_collect_extensions(SSL *s, PACKET *packet, unsigned int context,
- RAW_EXTENSION **res, int *al);
-__owur int tls_parse_extension(SSL *s, unsigned int idx, int context,
- RAW_EXTENSION *exts, int *al);
+ RAW_EXTENSION **res, int *al, size_t *len);
+__owur int tls_parse_extension(SSL *s, TLSEXT_INDEX idx, int context,
+ RAW_EXTENSION *exts, X509 *x, size_t chainidx,
+ int *al);
__owur int tls_parse_all_extensions(SSL *s, int context, RAW_EXTENSION *exts,
- int *al);
+ X509 *x, size_t chainidx, int *al);
__owur int tls_construct_extensions(SSL *s, WPACKET *pkt, unsigned int context,
- int *al);
+ X509 *x, size_t chainidx, int *al);
+
+__owur int tls_psk_do_binder(SSL *s, const EVP_MD *md,
+ const unsigned char *msgstart,
+ size_t binderoffset, const unsigned char *binderin,
+ unsigned char *binderout,
+ SSL_SESSION *sess, int sign);
/* Server Extension processing */
-int tls_parse_ctos_renegotiate(SSL *s, PACKET *pkt, int *al);
-int tls_parse_ctos_server_name(SSL *s, PACKET *pkt, int *al);
+int tls_parse_ctos_renegotiate(SSL *s, PACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
+int tls_parse_ctos_server_name(SSL *s, PACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
#ifndef OPENSSL_NO_SRP
-int tls_parse_ctos_srp(SSL *s, PACKET *pkt, int *al);
+int tls_parse_ctos_srp(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
#endif
+int tls_parse_ctos_early_data(SSL *s, PACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
#ifndef OPENSSL_NO_EC
-int tls_parse_ctos_ec_pt_formats(SSL *s, PACKET *pkt, int *al);
-int tls_parse_ctos_supported_groups(SSL *s, PACKET *pkt, int *al);
+int tls_parse_ctos_ec_pt_formats(SSL *s, PACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
+int tls_parse_ctos_supported_groups(SSL *s, PACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
#endif
-int tls_parse_ctos_session_ticket(SSL *s, PACKET *pkt, int *al);
-int tls_parse_ctos_sig_algs(SSL *s, PACKET *pkt, int *al);
+int tls_parse_ctos_session_ticket(SSL *s, PACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
+int tls_parse_ctos_sig_algs(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
#ifndef OPENSSL_NO_OCSP
-int tls_parse_ctos_status_request(SSL *s, PACKET *pkt, int *al);
+int tls_parse_ctos_status_request(SSL *s, PACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
#endif
#ifndef OPENSSL_NO_NEXTPROTONEG
-int tls_parse_ctos_npn(SSL *s, PACKET *pkt, int *al);
+int tls_parse_ctos_npn(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
#endif
-int tls_parse_ctos_alpn(SSL *s, PACKET *pkt, int *al);
+int tls_parse_ctos_alpn(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
#ifndef OPENSSL_NO_SRTP
-int tls_parse_ctos_use_srtp(SSL *s, PACKET *pkt, int *al);
+int tls_parse_ctos_use_srtp(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
#endif
-int tls_parse_ctos_etm(SSL *s, PACKET *pkt, int *al);
-int tls_parse_ctos_key_share(SSL *s, PACKET *pkt, int *al);
-int tls_parse_ctos_ems(SSL *s, PACKET *pkt, int *al);
+int tls_parse_ctos_etm(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
+int tls_parse_ctos_key_share(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
+int tls_parse_ctos_ems(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
+int tls_parse_ctos_psk_kex_modes(SSL *s, PACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
+int tls_parse_ctos_psk(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
-int tls_construct_stoc_renegotiate(SSL *s, WPACKET *pkt, int *al);
-int tls_construct_stoc_server_name(SSL *s, WPACKET *pkt, int *al);
+int tls_construct_stoc_renegotiate(SSL *s, WPACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
+int tls_construct_stoc_server_name(SSL *s, WPACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
+int tls_construct_stoc_early_data_info(SSL *s, WPACKET *pkt,
+ unsigned int context, X509 *x,
+ size_t chainidx, int *al);
+int tls_construct_stoc_early_data(SSL *s, WPACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
#ifndef OPENSSL_NO_EC
-int tls_construct_stoc_ec_pt_formats(SSL *s, WPACKET *pkt, int *al);
+int tls_construct_stoc_ec_pt_formats(SSL *s, WPACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
#endif
-int tls_construct_stoc_session_ticket(SSL *s, WPACKET *pkt, int *al);
+int tls_construct_stoc_session_ticket(SSL *s, WPACKET *pkt,
+ unsigned int context, X509 *x,
+ size_t chainidx, int *al);
#ifndef OPENSSL_NO_OCSP
-int tls_construct_stoc_status_request(SSL *s, WPACKET *pkt, int *al);
+int tls_construct_stoc_status_request(SSL *s, WPACKET *pkt,
+ unsigned int context, X509 *x,
+ size_t chainidx, int *al);
#endif
#ifndef OPENSSL_NO_NEXTPROTONEG
-int tls_construct_stoc_next_proto_neg(SSL *s, WPACKET *pkt, int *al);
+int tls_construct_stoc_next_proto_neg(SSL *s, WPACKET *pkt,
+ unsigned int context, X509 *x,
+ size_t chainidx, int *al);
#endif
-int tls_construct_stoc_alpn(SSL *s, WPACKET *pkt, int *al);
+int tls_construct_stoc_alpn(SSL *s, WPACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
#ifndef OPENSSL_NO_SRTP
-int tls_construct_stoc_use_srtp(SSL *s, WPACKET *pkt, int *al);
+int tls_construct_stoc_use_srtp(SSL *s, WPACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
#endif
-int tls_construct_stoc_etm(SSL *s, WPACKET *pkt, int *al);
-int tls_construct_stoc_ems(SSL *s, WPACKET *pkt, int *al);
-int tls_construct_stoc_key_share(SSL *s, WPACKET *pkt, int *al);
+int tls_construct_stoc_etm(SSL *s, WPACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
+int tls_construct_stoc_ems(SSL *s, WPACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
+int tls_construct_stoc_key_share(SSL *s, WPACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
/*
* Not in public headers as this is not an official extension. Only used when
* SSL_OP_CRYPTOPRO_TLSEXT_BUG is set.
*/
#define TLSEXT_TYPE_cryptopro_bug 0xfde8
-int tls_construct_stoc_cryptopro_bug(SSL *s, WPACKET *pkt, int *al);
+int tls_construct_stoc_cryptopro_bug(SSL *s, WPACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
+int tls_construct_stoc_psk(SSL *s, WPACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
/* Client Extension processing */
-int tls_construct_ctos_renegotiate(SSL *s, WPACKET *pkt, int *al);
-int tls_construct_ctos_server_name(SSL *s, WPACKET *pkt, int *al);
+int tls_construct_ctos_renegotiate(SSL *s, WPACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
+int tls_construct_ctos_server_name(SSL *s, WPACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
#ifndef OPENSSL_NO_SRP
-int tls_construct_ctos_srp(SSL *s, WPACKET *pkt, int *al);
+int tls_construct_ctos_srp(SSL *s, WPACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
#endif
#ifndef OPENSSL_NO_EC
-int tls_construct_ctos_ec_pt_formats(SSL *s, WPACKET *pkt, int *al);
-int tls_construct_ctos_supported_groups(SSL *s, WPACKET *pkt, int *al);
+int tls_construct_ctos_ec_pt_formats(SSL *s, WPACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
+int tls_construct_ctos_supported_groups(SSL *s, WPACKET *pkt,
+ unsigned int context, X509 *x,
+ size_t chainidx, int *al);
#endif
-int tls_construct_ctos_session_ticket(SSL *s, WPACKET *pkt, int *al);
-int tls_construct_ctos_sig_algs(SSL *s, WPACKET *pkt, int *al);
+int tls_construct_ctos_early_data(SSL *s, WPACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
+int tls_construct_ctos_session_ticket(SSL *s, WPACKET *pkt,
+ unsigned int context, X509 *x,
+ size_t chainidx, int *al);
+int tls_construct_ctos_sig_algs(SSL *s, WPACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
#ifndef OPENSSL_NO_OCSP
-int tls_construct_ctos_status_request(SSL *s, WPACKET *pkt, int *al);
+int tls_construct_ctos_status_request(SSL *s, WPACKET *pkt,
+ unsigned int context, X509 *x,
+ size_t chainidx, int *al);
#endif
#ifndef OPENSSL_NO_NEXTPROTONEG
-int tls_construct_ctos_npn(SSL *s, WPACKET *pkt, int *al);
+int tls_construct_ctos_npn(SSL *s, WPACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
#endif
-int tls_construct_ctos_alpn(SSL *s, WPACKET *pkt, int *al);
+int tls_construct_ctos_alpn(SSL *s, WPACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
#ifndef OPENSSL_NO_SRTP
-int tls_construct_ctos_use_srtp(SSL *s, WPACKET *pkt, int *al);
+int tls_construct_ctos_use_srtp(SSL *s, WPACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
#endif
-int tls_construct_ctos_etm(SSL *s, WPACKET *pkt, int *al);
+int tls_construct_ctos_etm(SSL *s, WPACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
#ifndef OPENSSL_NO_CT
-int tls_construct_ctos_sct(SSL *s, WPACKET *pkt, int *al);
+int tls_construct_ctos_sct(SSL *s, WPACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
#endif
-int tls_construct_ctos_ems(SSL *s, WPACKET *pkt, int *al);
-int tls_construct_ctos_supported_versions(SSL *s, WPACKET *pkt, int *al);
-int tls_construct_ctos_key_share(SSL *s, WPACKET *pkt, int *al);
-int tls_construct_ctos_padding(SSL *s, WPACKET *pkt, int *al);
-int tls_parse_stoc_renegotiate(SSL *s, PACKET *pkt, int *al);
-int tls_parse_stoc_server_name(SSL *s, PACKET *pkt, int *al);
+int tls_construct_ctos_ems(SSL *s, WPACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
+int tls_construct_ctos_supported_versions(SSL *s, WPACKET *pkt,
+ unsigned int context, X509 *x,
+ size_t chainidx, int *al);
+int tls_construct_ctos_key_share(SSL *s, WPACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
+int tls_construct_ctos_psk_kex_modes(SSL *s, WPACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
+int tls_construct_ctos_padding(SSL *s, WPACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
+int tls_construct_ctos_psk(SSL *s, WPACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
+int tls_parse_stoc_renegotiate(SSL *s, PACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
+int tls_parse_stoc_server_name(SSL *s, PACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
+int tls_parse_stoc_early_data_info(SSL *s, PACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
+int tls_parse_stoc_early_data(SSL *s, PACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
#ifndef OPENSSL_NO_EC
-int tls_parse_stoc_ec_pt_formats(SSL *s, PACKET *pkt, int *al);
+int tls_parse_stoc_ec_pt_formats(SSL *s, PACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
#endif
-int tls_parse_stoc_session_ticket(SSL *s, PACKET *pkt, int *al);
+int tls_parse_stoc_session_ticket(SSL *s, PACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
#ifndef OPENSSL_NO_OCSP
-int tls_parse_stoc_status_request(SSL *s, PACKET *pkt, int *al);
+int tls_parse_stoc_status_request(SSL *s, PACKET *pkt, unsigned int context,
+ X509 *x, size_t chainidx, int *al);
#endif
#ifndef OPENSSL_NO_CT
-int tls_parse_stoc_sct(SSL *s, PACKET *pkt, int *al);
+int tls_parse_stoc_sct(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
#endif
#ifndef OPENSSL_NO_NEXTPROTONEG
-int tls_parse_stoc_npn(SSL *s, PACKET *pkt, int *al);
+int tls_parse_stoc_npn(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
#endif
-int tls_parse_stoc_alpn(SSL *s, PACKET *pkt, int *al);
+int tls_parse_stoc_alpn(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
#ifndef OPENSSL_NO_SRTP
-int tls_parse_stoc_use_srtp(SSL *s, PACKET *pkt, int *al);
+int tls_parse_stoc_use_srtp(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
#endif
-int tls_parse_stoc_etm(SSL *s, PACKET *pkt, int *al);
-int tls_parse_stoc_ems(SSL *s, PACKET *pkt, int *al);
-int tls_parse_stoc_key_share(SSL *s, PACKET *pkt, int *al);
+int tls_parse_stoc_etm(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
+int tls_parse_stoc_ems(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
+int tls_parse_stoc_key_share(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);
+int tls_parse_stoc_psk(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
+ size_t chainidx, int *al);