X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=ssl%2Fssl_locl.h;h=a4278b21013b67b1e409eb8ea6b126b9454e4ec8;hp=4b8482aeb793daa2049f827542ab91b0a8e36b4b;hb=0d345f0e10b14392925479fc61b6c9072a9605a3;hpb=f865b08143b453962ad4afccd69e698d13c60f77 diff --git a/ssl/ssl_locl.h b/ssl/ssl_locl.h index 4b8482aeb7..a4278b2101 100644 --- a/ssl/ssl_locl.h +++ b/ssl/ssl_locl.h @@ -3,7 +3,7 @@ * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved * Copyright 2005 Nokia. All rights reserved. * - * Licensed under the OpenSSL license (the "License"). You may not use + * Licensed under the Apache License 2.0 (the "License"). You may not use * this file except in compliance with the License. You can obtain a copy * in the file LICENSE in the source distribution or at * https://www.openssl.org/source/license.html @@ -30,9 +30,11 @@ # include # include "record/record.h" # include "statem/statem.h" -# include "packet_locl.h" +# include "internal/packet.h" # include "internal/dane.h" # include "internal/refcount.h" +# include "internal/tsan_assist.h" +# include "internal/bio.h" # ifdef OPENSSL_BUILD_SHLIBSSL # undef OPENSSL_EXTERN @@ -129,6 +131,9 @@ (c)[1]=(unsigned char)(((l)>> 8)&0xff), \ (c)[2]=(unsigned char)(((l) )&0xff)),(c)+=3) +# define TLS_MAX_VERSION_INTERNAL TLS1_3_VERSION +# define DTLS_MAX_VERSION_INTERNAL DTLS1_2_VERSION + /* * DTLS version numbers are strange because they're inverted. Except for * DTLS1_BAD_VER, which should be considered "lower" than the rest. @@ -329,8 +334,8 @@ || (s)->early_data_state == SSL_EARLY_DATA_WRITE_RETRY \ || (s)->hello_retry_request == SSL_HRR_PENDING) -# define SSL_IS_FIRST_HANDSHAKE(S) ((s)->s3->tmp.finish_md_len == 0 \ - || (s)->s3->tmp.peer_finish_md_len == 0) +# define SSL_IS_FIRST_HANDSHAKE(S) ((s)->s3.tmp.finish_md_len == 0 \ + || (s)->s3.tmp.peer_finish_md_len == 0) /* See if we need explicit IV */ # define SSL_USE_EXPLICIT_IV(s) \ @@ -369,8 +374,8 @@ # define GET_MAX_FRAGMENT_LENGTH(session) \ (512U << (session->ext.max_fragment_len_mode - 1)) -# define SSL_READ_ETM(s) (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC_READ) -# define SSL_WRITE_ETM(s) (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE) +# define SSL_READ_ETM(s) (s->s3.flags & TLS1_FLAGS_ENCRYPT_THEN_MAC_READ) +# define SSL_WRITE_ETM(s) (s->s3.flags & TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE) /* Mostly for SSLv3 */ # define SSL_PKEY_RSA 0 @@ -383,11 +388,6 @@ # define SSL_PKEY_ED25519 7 # define SSL_PKEY_ED448 8 # define SSL_PKEY_NUM 9 -/* - * Pseudo-constant. GOST cipher suites can use different certs for 1 - * SSL_CIPHER. So let's see which one we have in fact. - */ -# define SSL_PKEY_GOST_EC SSL_PKEY_NUM+1 /*- * SSL_kRSA <- RSA_ENC @@ -475,6 +475,12 @@ struct ssl_method_st { long (*ssl_ctx_callback_ctrl) (SSL_CTX *s, int cb_id, void (*fp) (void)); }; +/* + * Matches the length of PSK_MAX_PSK_LEN. We keep it the same value for + * consistency, even in the event of OPENSSL_NO_PSK being defined. + */ +# define TLS13_MAX_RESUMPTION_PSK_LENGTH 256 + /*- * Lets make this into an ASN.1 type structure as follows * SSL_SESSION_ID ::= SEQUENCE { @@ -510,9 +516,9 @@ struct ssl_session_st { unsigned char early_secret[EVP_MAX_MD_SIZE]; /* * For <=TLS1.2 this is the master_key. For TLS1.3 this is the resumption - * master secret + * PSK */ - unsigned char master_key[TLS13_MAX_RESUMPTION_MASTER_LENGTH]; + unsigned char master_key[TLS13_MAX_RESUMPTION_PSK_LENGTH]; /* session_id - valid? */ size_t session_id_length; unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH]; @@ -550,7 +556,6 @@ struct ssl_session_st { const SSL_CIPHER *cipher; unsigned long cipher_id; /* when ASN.1 loaded, this needs to be used to * load the 'cipher' structure */ - STACK_OF(SSL_CIPHER) *ciphers; /* shared ciphers? */ CRYPTO_EX_DATA ex_data; /* application specific data */ /* * These are used to make removal of session-ids more efficient and to @@ -560,21 +565,12 @@ struct ssl_session_st { struct { char *hostname; -# ifndef OPENSSL_NO_EC - size_t ecpointformats_len; - unsigned char *ecpointformats; /* peer's list */ -# endif /* OPENSSL_NO_EC */ - size_t supportedgroups_len; - uint16_t *supportedgroups; /* peer's list */ - /* RFC4507 info */ + /* RFC4507 info */ unsigned char *tick; /* Session ticket */ size_t ticklen; /* Session ticket length */ /* Session lifetime hint in seconds */ unsigned long tick_lifetime_hint; uint32_t tick_age_add; - unsigned char *tick_nonce; - size_t tick_nonce_len; - int tick_identity; /* Max number of bytes that can be sent as early data */ uint32_t max_early_data; /* The ALPN protocol selected for this session */ @@ -733,7 +729,13 @@ DEFINE_LHASH_OF(SSL_SESSION); /* Needed in ssl_cert.c */ DEFINE_LHASH_OF(X509_NAME); -# define TLSEXT_KEYNAME_LENGTH 16 +# define TLSEXT_KEYNAME_LENGTH 16 +# define TLSEXT_TICK_KEY_LENGTH 32 + +typedef struct ssl_ctx_ext_secure_st { + unsigned char tick_hmac_key[TLSEXT_TICK_KEY_LENGTH]; + unsigned char tick_aes_key[TLSEXT_TICK_KEY_LENGTH]; +} SSL_CTX_EXT_SECURE; struct ssl_ctx_st { const SSL_METHOD *method; @@ -778,21 +780,23 @@ struct ssl_ctx_st { const unsigned char *data, int len, int *copy); struct { - int sess_connect; /* SSL new conn - started */ - int sess_connect_renegotiate; /* SSL reneg - requested */ - int sess_connect_good; /* SSL new conne/reneg - finished */ - int sess_accept; /* SSL new accept - started */ - int sess_accept_renegotiate; /* SSL reneg - requested */ - int sess_accept_good; /* SSL accept/reneg - finished */ - int sess_miss; /* session lookup misses */ - int sess_timeout; /* reuse attempt on timeouted session */ - int sess_cache_full; /* session removed due to full cache */ - int sess_hit; /* session reuse actually done */ - int sess_cb_hit; /* session-id that was not in the cache was - * passed back via the callback. This - * indicates that the application is supplying - * session-id's from other processes - spooky - * :-) */ + TSAN_QUALIFIER int sess_connect; /* SSL new conn - started */ + TSAN_QUALIFIER int sess_connect_renegotiate; /* SSL reneg - requested */ + TSAN_QUALIFIER int sess_connect_good; /* SSL new conne/reneg - finished */ + TSAN_QUALIFIER int sess_accept; /* SSL new accept - started */ + TSAN_QUALIFIER int sess_accept_renegotiate; /* SSL reneg - requested */ + TSAN_QUALIFIER int sess_accept_good; /* SSL accept/reneg - finished */ + TSAN_QUALIFIER int sess_miss; /* session lookup misses */ + TSAN_QUALIFIER int sess_timeout; /* reuse attempt on timeouted session */ + TSAN_QUALIFIER int sess_cache_full; /* session removed due to full cache */ + TSAN_QUALIFIER int sess_hit; /* session reuse actually done */ + TSAN_QUALIFIER int sess_cb_hit; /* session-id that was not in + * the cache was passed back via + * the callback. This indicates + * that the application is + * supplying session-id's from + * other processes - spooky + * :-) */ } stats; CRYPTO_REF_COUNT references; @@ -846,9 +850,11 @@ struct ssl_ctx_st { /* * What we put in certificate_authorities extension for TLS 1.3 * (ClientHello and CertificateRequest) or just client cert requests for - * earlier versions. + * earlier versions. If client_ca_names is populated then it is only used + * for client cert requests, and in preference to ca_names. */ STACK_OF(X509_NAME) *ca_names; + STACK_OF(X509_NAME) *client_ca_names; /* * Default values to use in SSL structures follow (these are copied by @@ -927,8 +933,7 @@ struct ssl_ctx_st { void *servername_arg; /* RFC 4507 session ticket keys */ unsigned char tick_key_name[TLSEXT_KEYNAME_LENGTH]; - unsigned char tick_hmac_key[32]; - unsigned char tick_aes_key[32]; + SSL_CTX_EXT_SECURE *secure; /* Callback to support customisation of ticket key setting */ int (*ticket_key_cb) (SSL *ssl, unsigned char *name, unsigned char *iv, @@ -947,9 +952,10 @@ struct ssl_ctx_st { /* EC extension values inherited by SSL structure */ size_t ecpointformats_len; unsigned char *ecpointformats; +# endif /* OPENSSL_NO_EC */ + size_t supportedgroups_len; uint16_t *supportedgroups; -# endif /* OPENSSL_NO_EC */ /* * ALPN information (we are in the process of transitioning from NPN to @@ -1014,8 +1020,10 @@ struct ssl_ctx_st { /* Shared DANE context */ struct dane_ctx_st dane; +# ifndef OPENSSL_NO_SRTP /* SRTP profiles we are willing to do from RFC 5764 */ STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles; +# endif /* * Callback for disabling session caching and ticket support on a session * basis, depending on the chosen cipher. @@ -1030,9 +1038,18 @@ struct ssl_ctx_st { */ SSL_CTX_keylog_cb_func keylog_callback; - /* The maximum number of bytes that can be sent as early data */ + /* + * The maximum number of bytes advertised in session tickets that can be + * sent as early data. + */ uint32_t max_early_data; + /* + * The maximum number of bytes of early data that a server will tolerate + * (which should be at least as much as max_early_data). + */ + uint32_t recv_max_early_data; + /* TLS1.3 padding callback */ size_t (*record_padding_cb)(SSL *s, int type, size_t len, void *arg); void *record_padding_arg; @@ -1042,8 +1059,24 @@ struct ssl_ctx_st { SSL_CTX_generate_session_ticket_fn generate_ticket_cb; SSL_CTX_decrypt_session_ticket_fn decrypt_ticket_cb; void *ticket_cb_data; + + /* The number of TLS1.3 tickets to automatically send */ + size_t num_tickets; + + /* Callback to determine if early_data is acceptable or not */ + SSL_allow_early_data_cb_fn allow_early_data_cb; + void *allow_early_data_cb_data; + + /* Do we advertise Post-handshake auth support? */ + int pha_enabled; + + /* Callback for SSL async handling */ + SSL_async_callback_fn async_cb; + void *async_cb_arg; }; +typedef struct cert_pkey_st CERT_PKEY; + struct ssl_st { /* * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION, @@ -1097,7 +1130,179 @@ struct ssl_st { * ssl3_get_message() */ size_t init_num; /* amount read/written */ size_t init_off; /* amount read/written */ - struct ssl3_state_st *s3; /* SSLv3 variables */ + + struct { + long flags; + size_t read_mac_secret_size; + unsigned char read_mac_secret[EVP_MAX_MD_SIZE]; + size_t write_mac_secret_size; + unsigned char write_mac_secret[EVP_MAX_MD_SIZE]; + unsigned char server_random[SSL3_RANDOM_SIZE]; + unsigned char client_random[SSL3_RANDOM_SIZE]; + /* flags for countermeasure against known-IV weakness */ + int need_empty_fragments; + int empty_fragment_done; + /* used during startup, digest all incoming/outgoing packets */ + BIO *handshake_buffer; + /* + * When handshake digest is determined, buffer is hashed and + * freed and MD_CTX for the required digest is stored here. + */ + EVP_MD_CTX *handshake_dgst; + /* + * Set whenever an expected ChangeCipherSpec message is processed. + * Unset when the peer's Finished message is received. + * Unexpected ChangeCipherSpec messages trigger a fatal alert. + */ + int change_cipher_spec; + int warn_alert; + int fatal_alert; + /* + * we allow one fatal and one warning alert to be outstanding, send close + * alert via the warning alert + */ + int alert_dispatch; + unsigned char send_alert[2]; + /* + * This flag is set when we should renegotiate ASAP, basically when there + * is no more data in the read or write buffers + */ + int renegotiate; + int total_renegotiations; + int num_renegotiations; + int in_read_app_data; + struct { + /* actually only need to be 16+20 for SSLv3 and 12 for TLS */ + unsigned char finish_md[EVP_MAX_MD_SIZE * 2]; + size_t finish_md_len; + unsigned char peer_finish_md[EVP_MAX_MD_SIZE * 2]; + size_t peer_finish_md_len; + size_t message_size; + int message_type; + /* used to hold the new cipher we are going to use */ + const SSL_CIPHER *new_cipher; +# if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH) + EVP_PKEY *pkey; /* holds short lived DH/ECDH key */ +# endif + /* used for certificate requests */ + int cert_req; + /* Certificate types in certificate request message. */ + uint8_t *ctype; + size_t ctype_len; + /* Certificate authorities list peer sent */ + STACK_OF(X509_NAME) *peer_ca_names; + size_t key_block_length; + unsigned char *key_block; + const EVP_CIPHER *new_sym_enc; + const EVP_MD *new_hash; + int new_mac_pkey_type; + size_t new_mac_secret_size; +# ifndef OPENSSL_NO_COMP + const SSL_COMP *new_compression; +# else + char *new_compression; +# endif + int cert_request; + /* Raw values of the cipher list from a client */ + unsigned char *ciphers_raw; + size_t ciphers_rawlen; + /* Temporary storage for premaster secret */ + unsigned char *pms; + size_t pmslen; +# ifndef OPENSSL_NO_PSK + /* Temporary storage for PSK key */ + unsigned char *psk; + size_t psklen; +# endif + /* Signature algorithm we actually use */ + const struct sigalg_lookup_st *sigalg; + /* Pointer to certificate we use */ + CERT_PKEY *cert; + /* + * signature algorithms peer reports: e.g. supported signature + * algorithms extension for server or as part of a certificate + * request for client. + * Keep track of the algorithms for TLS and X.509 usage separately. + */ + uint16_t *peer_sigalgs; + uint16_t *peer_cert_sigalgs; + /* Size of above arrays */ + size_t peer_sigalgslen; + size_t peer_cert_sigalgslen; + /* Sigalg peer actually uses */ + const struct sigalg_lookup_st *peer_sigalg; + /* + * Set if corresponding CERT_PKEY can be used with current + * SSL session: e.g. appropriate curve, signature algorithms etc. + * If zero it can't be used at all. + */ + uint32_t valid_flags[SSL_PKEY_NUM]; + /* + * For servers the following masks are for the key and auth algorithms + * that are supported by the certs below. For clients they are masks of + * *disabled* algorithms based on the current session. + */ + uint32_t mask_k; + uint32_t mask_a; + /* + * The following are used by the client to see if a cipher is allowed or + * not. It contains the minimum and maximum version the client's using + * based on what it knows so far. + */ + int min_ver; + int max_ver; + } tmp; + + /* Connection binding to prevent renegotiation attacks */ + unsigned char previous_client_finished[EVP_MAX_MD_SIZE]; + size_t previous_client_finished_len; + unsigned char previous_server_finished[EVP_MAX_MD_SIZE]; + size_t previous_server_finished_len; + int send_connection_binding; /* TODOEKR */ + +# ifndef OPENSSL_NO_NEXTPROTONEG + /* + * Set if we saw the Next Protocol Negotiation extension from our peer. + */ + int npn_seen; +# endif + + /* + * ALPN information (we are in the process of transitioning from NPN to + * ALPN.) + */ + + /* + * In a server these point to the selected ALPN protocol after the + * ClientHello has been processed. In a client these contain the protocol + * that the server selected once the ServerHello has been processed. + */ + unsigned char *alpn_selected; + size_t alpn_selected_len; + /* used by the server to know what options were proposed */ + unsigned char *alpn_proposed; + size_t alpn_proposed_len; + /* used by the client to know if it actually sent alpn */ + int alpn_sent; + +# ifndef OPENSSL_NO_EC + /* + * This is set to true if we believe that this is a version of Safari + * running on OS X 10.6 or newer. We wish to know this because Safari on + * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support. + */ + char is_probably_safari; +# endif /* !OPENSSL_NO_EC */ + + /* For clients: peer temporary key */ +# if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH) + /* The group_id for the DH/ECDH key */ + uint16_t group_id; + EVP_PKEY *peer_tmp; +# endif + + } s3; + struct dtls1_state_st *d1; /* DTLSv1 variables */ /* callback that allows applications to peek at protocol messages */ void (*msg_callback) (int write_p, int version, int content_type, @@ -1108,6 +1313,7 @@ struct ssl_st { /* Per connection DANE state */ SSL_DANE dane; /* crypto */ + STACK_OF(SSL_CIPHER) *peer_ciphers; STACK_OF(SSL_CIPHER) *cipher_list; STACK_OF(SSL_CIPHER) *cipher_list_by_id; /* TLSv1.3 specific ciphersuites */ @@ -1118,12 +1324,12 @@ struct ssl_st { */ uint32_t mac_flags; /* - * The TLS1.3 secrets. The resumption master secret is stored in the - * session. + * The TLS1.3 secrets. */ unsigned char early_secret[EVP_MAX_MD_SIZE]; unsigned char handshake_secret[EVP_MAX_MD_SIZE]; unsigned char master_secret[EVP_MAX_MD_SIZE]; + unsigned char resumption_master_secret[EVP_MAX_MD_SIZE]; unsigned char client_finished_secret[EVP_MAX_MD_SIZE]; unsigned char server_finished_secret[EVP_MAX_MD_SIZE]; unsigned char server_finished_hash[EVP_MAX_MD_SIZE]; @@ -1140,8 +1346,6 @@ struct ssl_st { EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */ unsigned char write_iv[EVP_MAX_IV_LENGTH]; /* TLSv1.3 static write IV */ EVP_MD_CTX *write_hash; /* used for mac generation */ - /* Count of how many KeyUpdate messages we have received */ - unsigned int key_update_count; /* session info */ /* client cert? */ /* This is used to hold the server certificate used */ @@ -1198,14 +1402,21 @@ struct ssl_st { # endif SSL_psk_find_session_cb_func psk_find_session_cb; SSL_psk_use_session_cb_func psk_use_session_cb; + SSL_CTX *ctx; /* Verified chain of peer */ STACK_OF(X509) *verified_chain; long verify_result; /* extra application data */ CRYPTO_EX_DATA ex_data; - /* for server side, keep the list of CA_dn we can use */ + /* + * What we put in certificate_authorities extension for TLS 1.3 + * (ClientHello and CertificateRequest) or just client cert requests for + * earlier versions. If client_ca_names is populated then it is only used + * for client cert requests, and in preference to ca_names. + */ STACK_OF(X509_NAME) *ca_names; + STACK_OF(X509_NAME) *client_ca_names; CRYPTO_REF_COUNT references; /* protocol behaviour */ uint32_t options; @@ -1266,10 +1477,19 @@ struct ssl_st { size_t ecpointformats_len; /* our list */ unsigned char *ecpointformats; + + size_t peer_ecpointformats_len; + /* peer's list */ + unsigned char *peer_ecpointformats; # endif /* OPENSSL_NO_EC */ size_t supportedgroups_len; /* our list */ uint16_t *supportedgroups; + + size_t peer_supportedgroups_len; + /* peer's list */ + uint16_t *peer_supportedgroups; + /* TLS Session Ticket extension override */ TLS_SESSION_TICKET_EXT *session_ticket; /* TLS Session Ticket extension callback */ @@ -1321,6 +1541,13 @@ struct ssl_st { * as this extension is optional on server side. */ uint8_t max_fragment_len_mode; + + /* + * On the client side the number of ticket identities we sent in the + * ClientHello. On the server side the identity of the ticket we + * selected. + */ + int tick_identity; } ext; /* @@ -1353,10 +1580,12 @@ struct ssl_st { int scts_parsed; # endif SSL_CTX *session_ctx; /* initial ctx, used to store sessions */ +# ifndef OPENSSL_NO_SRTP /* What we'll do */ STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles; /* What's been chosen */ SRTP_PROTECTION_PROFILE *srtp_profile; +# endif /*- * 1 if we are renegotiating. * 2 if we are a server and are inside a handshake @@ -1367,7 +1596,7 @@ struct ssl_st { int key_update; /* Post-handshake authentication state */ SSL_PHA_STATE post_handshake_auth; - int pha_forced; + int pha_enabled; uint8_t* pha_context; size_t pha_context_len; int certreqs_sent; @@ -1392,8 +1621,17 @@ struct ssl_st { ASYNC_WAIT_CTX *waitctx; size_t asyncrw; - /* The maximum number of plaintext bytes that can be sent as early data */ + /* + * The maximum number of bytes advertised in session tickets that can be + * sent as early data. + */ uint32_t max_early_data; + /* + * The maximum number of bytes of early data that a server will tolerate + * (which should be at least as much as max_early_data). + */ + uint32_t recv_max_early_data; + /* * The number of bytes of early data received so far. If we accepted early * data then this is a count of the plaintext bytes. If we rejected it then @@ -1408,6 +1646,28 @@ struct ssl_st { CRYPTO_RWLOCK *lock; RAND_DRBG *drbg; + + /* The number of TLS1.3 tickets to automatically send */ + size_t num_tickets; + /* The number of TLS1.3 tickets actually sent so far */ + size_t sent_tickets; + /* The next nonce value to use when we send a ticket on this connection */ + uint64_t next_ticket_nonce; + + /* Callback to determine if early_data is acceptable or not */ + SSL_allow_early_data_cb_fn allow_early_data_cb; + void *allow_early_data_cb_data; + + /* Callback for SSL async handling */ + SSL_async_callback_fn async_cb; + void *async_cb_arg; + + /* + * Signature algorithms shared by client and server: cached because these + * are used most often. + */ + const struct sigalg_lookup_st **shared_sigalgs; + size_t shared_sigalgslen; }; /* @@ -1436,198 +1696,29 @@ typedef struct sigalg_lookup_st { typedef struct tls_group_info_st { int nid; /* Curve NID */ int secbits; /* Bits of security (from SP800-57) */ - uint16_t flags; /* Flags: currently just group type */ + uint32_t flags; /* For group type and applicable TLS versions */ + uint16_t group_id; /* Group ID */ } TLS_GROUP_INFO; /* flags values */ -# define TLS_CURVE_TYPE 0x3 /* Mask for group type */ -# define TLS_CURVE_PRIME 0x0 -# define TLS_CURVE_CHAR2 0x1 -# define TLS_CURVE_CUSTOM 0x2 +# define TLS_GROUP_TYPE 0x0000000FU /* Mask for group type */ +# define TLS_GROUP_CURVE_PRIME 0x00000001U +# define TLS_GROUP_CURVE_CHAR2 0x00000002U +# define TLS_GROUP_CURVE_CUSTOM 0x00000004U +# define TLS_GROUP_FFDHE 0x00000008U +# define TLS_GROUP_ONLY_FOR_TLS1_3 0x00000010U -typedef struct cert_pkey_st CERT_PKEY; +# define TLS_GROUP_FFDHE_FOR_TLS1_3 (TLS_GROUP_FFDHE|TLS_GROUP_ONLY_FOR_TLS1_3) /* * Structure containing table entry of certificate info corresponding to * CERT_PKEY entries */ typedef struct { - int nid; /* NID of pubic key algorithm */ + int nid; /* NID of public key algorithm */ uint32_t amask; /* authmask corresponding to key type */ } SSL_CERT_LOOKUP; -typedef struct ssl3_state_st { - long flags; - size_t read_mac_secret_size; - unsigned char read_mac_secret[EVP_MAX_MD_SIZE]; - size_t write_mac_secret_size; - unsigned char write_mac_secret[EVP_MAX_MD_SIZE]; - unsigned char server_random[SSL3_RANDOM_SIZE]; - unsigned char client_random[SSL3_RANDOM_SIZE]; - /* flags for countermeasure against known-IV weakness */ - int need_empty_fragments; - int empty_fragment_done; - /* used during startup, digest all incoming/outgoing packets */ - BIO *handshake_buffer; - /* - * When handshake digest is determined, buffer is hashed and - * freed and MD_CTX for the required digest is stored here. - */ - EVP_MD_CTX *handshake_dgst; - /* - * Set whenever an expected ChangeCipherSpec message is processed. - * Unset when the peer's Finished message is received. - * Unexpected ChangeCipherSpec messages trigger a fatal alert. - */ - int change_cipher_spec; - int warn_alert; - int fatal_alert; - /* - * we allow one fatal and one warning alert to be outstanding, send close - * alert via the warning alert - */ - int alert_dispatch; - unsigned char send_alert[2]; - /* - * This flag is set when we should renegotiate ASAP, basically when there - * is no more data in the read or write buffers - */ - int renegotiate; - int total_renegotiations; - int num_renegotiations; - int in_read_app_data; - struct { - /* actually only need to be 16+20 for SSLv3 and 12 for TLS */ - unsigned char finish_md[EVP_MAX_MD_SIZE * 2]; - size_t finish_md_len; - unsigned char peer_finish_md[EVP_MAX_MD_SIZE * 2]; - size_t peer_finish_md_len; - size_t message_size; - int message_type; - /* used to hold the new cipher we are going to use */ - const SSL_CIPHER *new_cipher; -# if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH) - EVP_PKEY *pkey; /* holds short lived DH/ECDH key */ -# endif - /* used for certificate requests */ - int cert_req; - /* Certificate types in certificate request message. */ - uint8_t *ctype; - size_t ctype_len; - /* Certificate authorities list peer sent */ - STACK_OF(X509_NAME) *peer_ca_names; - size_t key_block_length; - unsigned char *key_block; - const EVP_CIPHER *new_sym_enc; - const EVP_MD *new_hash; - int new_mac_pkey_type; - size_t new_mac_secret_size; -# ifndef OPENSSL_NO_COMP - const SSL_COMP *new_compression; -# else - char *new_compression; -# endif - int cert_request; - /* Raw values of the cipher list from a client */ - unsigned char *ciphers_raw; - size_t ciphers_rawlen; - /* Temporary storage for premaster secret */ - unsigned char *pms; - size_t pmslen; -# ifndef OPENSSL_NO_PSK - /* Temporary storage for PSK key */ - unsigned char *psk; - size_t psklen; -# endif - /* Signature algorithm we actually use */ - const SIGALG_LOOKUP *sigalg; - /* Pointer to certificate we use */ - CERT_PKEY *cert; - /* - * signature algorithms peer reports: e.g. supported signature - * algorithms extension for server or as part of a certificate - * request for client. - * Keep track of the algorithms for TLS and X.509 usage separately. - */ - uint16_t *peer_sigalgs; - uint16_t *peer_cert_sigalgs; - /* Size of above arrays */ - size_t peer_sigalgslen; - size_t peer_cert_sigalgslen; - /* Sigalg peer actually uses */ - const SIGALG_LOOKUP *peer_sigalg; - /* - * Set if corresponding CERT_PKEY can be used with current - * SSL session: e.g. appropriate curve, signature algorithms etc. - * If zero it can't be used at all. - */ - uint32_t valid_flags[SSL_PKEY_NUM]; - /* - * For servers the following masks are for the key and auth algorithms - * that are supported by the certs below. For clients they are masks of - * *disabled* algorithms based on the current session. - */ - uint32_t mask_k; - uint32_t mask_a; - /* - * The following are used by the client to see if a cipher is allowed or - * not. It contains the minimum and maximum version the client's using - * based on what it knows so far. - */ - int min_ver; - int max_ver; - } tmp; - - /* Connection binding to prevent renegotiation attacks */ - unsigned char previous_client_finished[EVP_MAX_MD_SIZE]; - size_t previous_client_finished_len; - unsigned char previous_server_finished[EVP_MAX_MD_SIZE]; - size_t previous_server_finished_len; - int send_connection_binding; /* TODOEKR */ - -# ifndef OPENSSL_NO_NEXTPROTONEG - /* - * Set if we saw the Next Protocol Negotiation extension from our peer. - */ - int npn_seen; -# endif - - /* - * ALPN information (we are in the process of transitioning from NPN to - * ALPN.) - */ - - /* - * In a server these point to the selected ALPN protocol after the - * ClientHello has been processed. In a client these contain the protocol - * that the server selected once the ServerHello has been processed. - */ - unsigned char *alpn_selected; - size_t alpn_selected_len; - /* used by the server to know what options were proposed */ - unsigned char *alpn_proposed; - size_t alpn_proposed_len; - /* used by the client to know if it actually sent alpn */ - int alpn_sent; - -# ifndef OPENSSL_NO_EC - /* - * This is set to true if we believe that this is a version of Safari - * running on OS X 10.6 or newer. We wish to know this because Safari on - * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support. - */ - char is_probably_safari; -# endif /* !OPENSSL_NO_EC */ - - /* For clients: peer temporary key */ -# if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH) - /* The group_id for the DH/ECDH key */ - uint16_t group_id; - EVP_PKEY *peer_tmp; -# endif - -} SSL3_STATE; - /* DTLS structures */ # ifndef OPENSSL_NO_SCTP @@ -1841,12 +1932,6 @@ typedef struct cert_st { uint16_t *client_sigalgs; /* Size of above array */ size_t client_sigalgslen; - /* - * Signature algorithms shared by client and server: cached because these - * are used most often. - */ - const SIGALG_LOOKUP **shared_sigalgs; - size_t shared_sigalgslen; /* * Certificate setup callback: if set is called whenever a certificate * may be required (client or server). the callback can then examine any @@ -1995,11 +2080,8 @@ typedef enum downgrade_en { #define TLSEXT_KEX_MODE_FLAG_KE 1 #define TLSEXT_KEX_MODE_FLAG_KE_DHE 2 -/* An invalid index into the TLSv1.3 PSK identities */ -#define TLSEXT_PSK_BAD_IDENTITY -1 - -#define SSL_USE_PSS(s) (s->s3->tmp.peer_sigalg != NULL && \ - s->s3->tmp.peer_sigalg->sig == EVP_PKEY_RSA_PSS) +#define SSL_USE_PSS(s) (s->s3.tmp.peer_sigalg != NULL && \ + s->s3.tmp.peer_sigalg->sig == EVP_PKEY_RSA_PSS) /* A dummy signature value not valid for TLSv1.2 signature algs */ #define TLSEXT_signature_rsa_pss 0x0101 @@ -2180,8 +2262,8 @@ static ossl_inline int ssl_has_cert(const SSL *s, int idx) static ossl_inline void tls1_get_peer_groups(SSL *s, const uint16_t **pgroups, size_t *pgroupslen) { - *pgroups = s->session->ext.supportedgroups; - *pgroupslen = s->session->ext.supportedgroups_len; + *pgroups = s->ext.peer_supportedgroups; + *pgroupslen = s->ext.peer_supportedgroups_len; } # ifndef OPENSSL_UNIT_TEST @@ -2196,8 +2278,10 @@ void ssl_cert_clear_certs(CERT *c); void ssl_cert_free(CERT *c); __owur int ssl_generate_session_id(SSL *s, SSL_SESSION *ss); __owur int ssl_get_new_session(SSL *s, int session); +__owur SSL_SESSION *lookup_sess_in_cache(SSL *s, const unsigned char *sess_id, + size_t sess_id_len); __owur int ssl_get_prev_session(SSL *s, CLIENTHELLO_MSG *hello); -__owur SSL_SESSION *ssl_session_dup(SSL_SESSION *src, int ticket); +__owur SSL_SESSION *ssl_session_dup(const SSL_SESSION *src, int ticket); __owur int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b); DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); __owur int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, @@ -2238,11 +2322,11 @@ __owur int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags); __owur int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref); -__owur int ssl_randbytes(SSL *s, unsigned char *buf, size_t num); __owur int ssl_security(const SSL *s, int op, int bits, int nid, void *other); __owur int ssl_ctx_security(const SSL_CTX *ctx, int op, int bits, int nid, void *other); +__owur int ssl_cert_lookup_by_nid(int nid, size_t *pidx); __owur const SSL_CERT_LOOKUP *ssl_cert_lookup_by_pkey(const EVP_PKEY *pk, size_t *pidx); __owur const SSL_CERT_LOOKUP *ssl_cert_lookup_by_idx(size_t idx); @@ -2255,7 +2339,7 @@ __owur int ssl_get_server_cert_serverinfo(SSL *s, size_t *serverinfo_length); void ssl_set_masks(SSL *s); __owur STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s); -__owur int ssl_verify_alarm_type(long type); +__owur int ssl_x509err2alert(int type); void ssl_sort_cipher_list(void); int ssl_load_ciphers(void); __owur int ssl_fill_hello_random(SSL *s, int server, unsigned char *field, @@ -2288,6 +2372,8 @@ __owur int ssl3_num_ciphers(void); __owur const SSL_CIPHER *ssl3_get_cipher(unsigned int u); int ssl3_renegotiate(SSL *ssl); int ssl3_renegotiate_check(SSL *ssl, int initok); +void ssl3_digest_master_key_set_params(const SSL_SESSION *session, + OSSL_PARAM params[]); __owur int ssl3_dispatch_alert(SSL *s); __owur size_t ssl3_final_finish_mac(SSL *s, const char *sender, size_t slen, unsigned char *p); @@ -2323,7 +2409,8 @@ __owur int ssl3_handshake_write(SSL *s); __owur int ssl_allow_compression(SSL *s); -__owur int ssl_version_supported(const SSL *s, int version); +__owur int ssl_version_supported(const SSL *s, int version, + const SSL_METHOD **meth); __owur int ssl_set_client_hello_version(SSL *s); __owur int ssl_check_version_downgrade(SSL *s); @@ -2333,7 +2420,7 @@ __owur int ssl_choose_server_version(SSL *s, CLIENTHELLO_MSG *hello, __owur int ssl_choose_client_version(SSL *s, int version, RAW_EXTENSION *extensions); __owur int ssl_get_min_max_version(const SSL *s, int *min_version, - int *max_version); + int *max_version, int *real_max); __owur long tls1_default_timeout(void); __owur int dtls1_do_write(SSL *s, int type); @@ -2399,7 +2486,7 @@ __owur int tls13_hkdf_expand(SSL *s, const EVP_MD *md, const unsigned char *secret, const unsigned char *label, size_t labellen, const unsigned char *data, size_t datalen, - unsigned char *out, size_t outlen); + unsigned char *out, size_t outlen, int fatal); __owur int tls13_derive_key(SSL *s, const EVP_MD *md, const unsigned char *secret, unsigned char *key, size_t keylen); @@ -2443,31 +2530,31 @@ __owur int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s); SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n); -# ifndef OPENSSL_NO_EC - __owur const TLS_GROUP_INFO *tls1_group_id_lookup(uint16_t curve_id); -__owur int tls1_check_group_id(SSL *s, uint16_t group_id); +__owur int tls1_check_group_id(SSL *s, uint16_t group_id, int check_own_curves); __owur uint16_t tls1_shared_group(SSL *s, int nmatch); __owur int tls1_set_groups(uint16_t **pext, size_t *pextlen, int *curves, size_t ncurves); __owur int tls1_set_groups_list(uint16_t **pext, size_t *pextlen, const char *str); +__owur EVP_PKEY *ssl_generate_pkey_group(SSL *s, uint16_t id); +__owur int tls_valid_group(SSL *s, uint16_t group_id, int version); +__owur EVP_PKEY *ssl_generate_param_group(uint16_t id); +# ifndef OPENSSL_NO_EC void tls1_get_formatlist(SSL *s, const unsigned char **pformats, size_t *num_formats); __owur int tls1_check_ec_tmp_key(SSL *s, unsigned long id); -__owur EVP_PKEY *ssl_generate_pkey_group(SSL *s, uint16_t id); -__owur EVP_PKEY *ssl_generate_param_group(uint16_t id); # endif /* OPENSSL_NO_EC */ -__owur int tls_curve_allowed(SSL *s, uint16_t curve, int op); +__owur int tls_group_allowed(SSL *s, uint16_t curve, int op); void tls1_get_supported_groups(SSL *s, const uint16_t **pgroups, size_t *pgroupslen); __owur int tls1_set_server_sigalgs(SSL *s); -__owur SSL_TICKET_RETURN tls_get_ticket_from_client(SSL *s, CLIENTHELLO_MSG *hello, +__owur SSL_TICKET_STATUS tls_get_ticket_from_client(SSL *s, CLIENTHELLO_MSG *hello, SSL_SESSION **ret); -__owur SSL_TICKET_RETURN tls_decrypt_ticket(SSL *s, const unsigned char *etick, +__owur SSL_TICKET_STATUS tls_decrypt_ticket(SSL *s, const unsigned char *etick, size_t eticklen, const unsigned char *sess_id, size_t sesslen, SSL_SESSION **psess); @@ -2510,6 +2597,9 @@ __owur int tls1_process_sigalgs(SSL *s); __owur int tls1_set_peer_legacy_sigalg(SSL *s, const EVP_PKEY *pkey); __owur int tls1_lookup_md(const SIGALG_LOOKUP *lu, const EVP_MD **pmd); __owur size_t tls12_get_psigalgs(SSL *s, int sent, const uint16_t **psigs); +# ifndef OPENSSL_NO_EC +__owur int tls_check_sigalg_curve(const SSL *s, int curve); +# endif __owur int tls12_check_peer_sigalg(SSL *s, uint16_t, EVP_PKEY *pkey); __owur int ssl_set_client_disabled(SSL *s); __owur int ssl_cipher_disabled(SSL *s, const SSL_CIPHER *c, int op, int echde); @@ -2546,6 +2636,8 @@ __owur int ssl_log_secret(SSL *ssl, const char *label, #define SERVER_HANDSHAKE_LABEL "SERVER_HANDSHAKE_TRAFFIC_SECRET" #define CLIENT_APPLICATION_LABEL "CLIENT_TRAFFIC_SECRET_0" #define SERVER_APPLICATION_LABEL "SERVER_TRAFFIC_SECRET_0" +#define EARLY_EXPORTER_SECRET_LABEL "EARLY_EXPORTER_SECRET" +#define EXPORTER_SECRET_LABEL "EXPORTER_SECRET" /* s3_cbc.c */ __owur char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx); @@ -2589,6 +2681,9 @@ void custom_exts_free(custom_ext_methods *exts); void ssl_comp_free_compression_methods_int(void); +/* ssl_mcnf.c */ +void ssl_ctx_system_config(SSL_CTX *ctx); + # else /* OPENSSL_UNIT_TEST */ # define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer