X-Git-Url: https://git.openssl.org/?a=blobdiff_plain;f=ssl%2Fssl_locl.h;h=b66979b4dad0eabb023f18dabae2712250bd8800;hb=84d4b9e31d5fd63408a0a43e02ec0780673362cf;hp=a5df3cfb7f75b207925a6bbcf667f68b78f640b4;hpb=ee215c7eea91f193d4765127eb31332758753058;p=openssl.git diff --git a/ssl/ssl_locl.h b/ssl/ssl_locl.h index a5df3cfb7f..b66979b4da 100644 --- a/ssl/ssl_locl.h +++ b/ssl/ssl_locl.h @@ -30,7 +30,7 @@ # 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" @@ -334,8 +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) \ @@ -374,8 +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 @@ -556,7 +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; /* ciphers offered by the client */ CRYPTO_EX_DATA ex_data; /* application specific data */ /* * These are used to make removal of session-ids more efficient and to @@ -566,13 +565,7 @@ 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 */ @@ -959,9 +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 @@ -1081,6 +1075,8 @@ struct ssl_ctx_st { void *async_cb_arg; }; +typedef struct cert_pkey_st CERT_PKEY; + struct ssl_st { /* * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION, @@ -1134,7 +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, @@ -1145,6 +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 */ @@ -1308,10 +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 */ @@ -1467,7 +1645,6 @@ struct ssl_st { size_t block_padding; CRYPTO_RWLOCK *lock; - RAND_DRBG *drbg; /* The number of TLS1.3 tickets to automatically send */ size_t num_tickets; @@ -1483,6 +1660,13 @@ struct ssl_st { /* 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; }; /* @@ -1511,16 +1695,19 @@ 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 @@ -1531,178 +1718,6 @@ typedef struct { 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 @@ -1916,12 +1931,6 @@ 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 @@ -2070,8 +2079,8 @@ typedef enum downgrade_en { #define TLSEXT_KEX_MODE_FLAG_KE 1 #define TLSEXT_KEX_MODE_FLAG_KE_DHE 2 -#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 @@ -2252,8 +2261,8 @@ 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 @@ -2362,6 +2371,8 @@ __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); @@ -2518,23 +2529,24 @@ __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_group_id2nid(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);