# define OPENSSL_EXTERN OPENSSL_EXPORT
# endif
-# undef PKCS1_CHECK
-
# define c2l(c,l) (l = ((unsigned long)(*((c)++))) , \
l|=(((unsigned long)(*((c)++)))<< 8), \
l|=(((unsigned long)(*((c)++)))<<16), \
# define DTLS_VERSION_LT(v1, v2) (dtls_ver_ordinal(v1) > dtls_ver_ordinal(v2))
# define DTLS_VERSION_LE(v1, v2) (dtls_ver_ordinal(v1) >= dtls_ver_ordinal(v2))
-/* LOCAL STUFF */
-
-# define SSL_DECRYPT 0
-# define SSL_ENCRYPT 1
-
-# define TWO_BYTE_BIT 0x80
-# define SEC_ESC_BIT 0x40
-# define TWO_BYTE_MASK 0x7fff
-# define THREE_BYTE_MASK 0x3fff
-
-# define INC32(a) ((a)=((a)+1)&0xffffffffL)
-# define DEC32(a) ((a)=((a)-1)&0xffffffffL)
-# define MAX_MAC_SIZE 20 /* up from 16 for SSLv3 */
/*
* Define the Bitmasks for SSL_CIPHER.algorithms.
&& (s)->method->version >= TLS1_3_VERSION \
&& (s)->method->version != TLS_ANY_VERSION)
+# define SSL_TREAT_AS_TLS13(s) \
+ (SSL_IS_TLS13(s) || (s)->early_data_state == SSL_EARLY_DATA_WRITING)
+
# define SSL_IS_FIRST_HANDSHAKE(S) ((s)->s3->tmp.finish_md_len == 0)
/* See if we need explicit IV */
# define SSL_CLIENT_USE_SIGALGS(s) \
SSL_CLIENT_USE_TLS1_2_CIPHERS(s)
-# define SSL_USE_ETM(s) (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC)
+# 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
unsigned long tick_lifetime_hint;
uint32_t tick_age_add;
int tick_identity;
+ /* Max number of bytes that can be sent as early data */
+ uint32_t max_early_data;
} ext;
# ifndef OPENSSL_NO_SRP
char *srp_username;
# endif
+typedef enum {
+ SSL_EARLY_DATA_NONE = 0,
+ SSL_EARLY_DATA_CONNECT_RETRY,
+ SSL_EARLY_DATA_CONNECTING,
+ SSL_EARLY_DATA_WRITE_RETRY,
+ SSL_EARLY_DATA_WRITING,
+ SSL_EARLY_DATA_FINISHED_WRITING,
+ SSL_EARLY_DATA_ACCEPT_RETRY,
+ SSL_EARLY_DATA_ACCEPTING,
+ SSL_EARLY_DATA_READ_RETRY,
+ SSL_EARLY_DATA_READING,
+ SSL_EARLY_DATA_FINISHED_READING
+} SSL_EARLY_DATA_STATE;
+
+/*
+ * We check that the amount of unreadable early data doesn't exceed
+ * max_early_data. max_early_data is given in plaintext bytes. However if it is
+ * unreadable then we only know the number of ciphertext bytes. We also don't
+ * know how much the overhead should be because it depends on the ciphersuite.
+ * We make a small allowance. We assume 5 records of actual data plus the end
+ * of early data alert record. Each record has a tag and a content type byte.
+ * The longest tag length we know of is EVP_GCM_TLS_TAG_LEN. We don't count the
+ * content of the alert record either which is 2 bytes.
+ */
+# define EARLY_DATA_CIPHERTEXT_OVERHEAD ((6 * (EVP_GCM_TLS_TAG_LEN + 1)) + 2)
+
+/*
+ * The allowance we have between the client's calculated ticket age and our own.
+ * We allow for 10 seconds (units are in ms). If a ticket is presented and the
+ * client's age calculation is different by more than this than our own then we
+ * do not allow that ticket for early_data.
+ */
+# define TICKET_AGE_ALLOWANCE (10 * 1000)
+
+#define MAX_COMPRESSIONS_SIZE 255
+
struct ssl_comp_st {
int id;
const char *name;
COMP_METHOD *method;
};
+typedef struct raw_extension_st {
+ /* Raw packet data for the extension */
+ PACKET data;
+ /* Set to 1 if the extension is present or 0 otherwise */
+ int present;
+ /* Set to 1 if we have already parsed the extension or 0 otherwise */
+ int parsed;
+ /* The type of this extension, i.e. a TLSEXT_TYPE_* value */
+ unsigned int type;
+} RAW_EXTENSION;
+
+typedef struct {
+ unsigned int isv2;
+ unsigned int legacy_version;
+ unsigned char random[SSL3_RANDOM_SIZE];
+ size_t session_id_len;
+ unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH];
+ size_t dtls_cookie_len;
+ unsigned char dtls_cookie[DTLS1_COOKIE_LENGTH];
+ PACKET ciphersuites;
+ size_t compressions_len;
+ unsigned char compressions[MAX_COMPRESSIONS_SIZE];
+ PACKET extensions;
+ size_t pre_proc_exts_len;
+ RAW_EXTENSION *pre_proc_exts;
+} CLIENTHELLO_MSG;
+
DEFINE_LHASH_OF(SSL_SESSION);
/* Needed in ssl_cert.c */
DEFINE_LHASH_OF(X509_NAME);
ENGINE *client_cert_engine;
# endif
+ /* Early callback. Mostly for extensions, but not entirely. */
+ SSL_early_cb_fn early_cb;
+ void *early_cb_arg;
+
/* TLS extensions. */
struct {
/* TLS extensions servername callback */
* Wireshark. The callback should log `line` followed by a newline.
*/
SSL_CTX_keylog_cb_func keylog_callback;
+
+ /* The maximum number of bytes that can be sent as early data */
+ uint32_t max_early_data;
};
struct ssl_st {
int shutdown;
/* where we are */
OSSL_STATEM statem;
+ SSL_EARLY_DATA_STATE early_data_state;
BUF_MEM *init_buf; /* buffer used during init */
void *init_msg; /* pointer to handshake message body, set by
* ssl3_get_message() */
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];
+ unsigned char handshake_traffic_hash[EVP_MAX_MD_SIZE];
+ unsigned char client_app_traffic_secret[EVP_MAX_MD_SIZE];
+ unsigned char server_app_traffic_secret[EVP_MAX_MD_SIZE];
EVP_CIPHER_CTX *enc_read_ctx; /* cryptographic state */
unsigned char read_iv[EVP_MAX_IV_LENGTH]; /* TLSv1.3 static read IV */
EVP_MD_CTX *read_hash; /* used for mac generation */
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 */
unsigned char cert_verify_hash[EVP_MAX_MD_SIZE];
size_t cert_verify_hash_len;
+ /* Flag to indicate whether we should send a HelloRetryRequest or not */
+ int hello_retry_request;
+
/*
* the session_id_context is used to ensure sessions are only reused in
* the appropriate context
/* The available PSK key exchange modes */
int psk_kex_mode;
+
+ /* Set to one if we have negotiated ETM */
+ int use_etm;
+
+ /* Are we expecting to receive early data? */
+ int early_data;
+ /* Is the session suitable for early data? */
+ int early_data_ok;
} ext;
+ /* Parsed form of the ClientHello, kept around across early_cb calls. */
+ CLIENTHELLO_MSG *clienthello;
+
/*-
* no further mod of servername
* 0 : call the servername extension callback.
* (i.e. not just sending a HelloRequest)
*/
int renegotiate;
+ /* If sending a KeyUpdate is pending */
+ int key_update;
# ifndef OPENSSL_NO_SRP
/* ctx for SRP authentication */
SRP_CTX srp_ctx;
ASYNC_WAIT_CTX *waitctx;
size_t asyncrw;
+ /* The maximum number of plaintext bytes that can be sent as early data */
+ uint32_t 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
+ * this is a count of the ciphertext bytes.
+ */
+ uint32_t early_data_count;
+
CRYPTO_RWLOCK *lock;
};
int curve;
} SIGALG_LOOKUP;
+typedef struct cert_pkey_st CERT_PKEY;
+
typedef struct ssl3_state_st {
long flags;
size_t read_mac_secret_size;
# endif
/* used for certificate requests */
int cert_req;
- int ctype_num;
- char ctype[SSL3_CT_NUMBER];
+ /* Certificate types in certificate request message. */
+ uint8_t *ctype;
+ size_t ctype_len;
STACK_OF(X509_NAME) *ca_names;
size_t key_block_length;
unsigned char *key_block;
# endif
/* Signature algorithm we actually use */
const SIGALG_LOOKUP *sigalg;
- /* Index of certificate we use */
- int cert_idx;
+ /* 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
size_t peer_sigalgslen;
/* Sigalg peer actualy uses */
const SIGALG_LOOKUP *peer_sigalg;
- /* Array of digests used for signing */
- const EVP_MD *md[SSL_PKEY_NUM];
/*
* Set if corresponding CERT_PKEY can be used with current
* SSL session: e.g. appropriate curve, signature algorithms etc.
# define NAMED_CURVE_TYPE 3
# endif /* OPENSSL_NO_EC */
-typedef struct cert_pkey_st {
+struct cert_pkey_st {
X509 *x509;
EVP_PKEY *privatekey;
/* Chain for this certificate */
*/
unsigned char *serverinfo;
size_t serverinfo_length;
-} CERT_PKEY;
+};
/* Retrieve Suite B flags */
# define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS)
/* Uses to check strict mode: suite B modes are always strict */
/* Flags related to certificates */
uint32_t cert_flags;
CERT_PKEY pkeys[SSL_PKEY_NUM];
- /*
- * Certificate types (received or sent) in certificate request message.
- * On receive this is only set if number of certificate types exceeds
- * SSL3_CT_NUMBER.
- */
- unsigned char *ctypes;
- size_t ctype_num;
+ /* Custom certificate types sent in certificate request message. */
+ uint8_t *ctype;
+ size_t ctype_len;
/*
* supported signature algorithms. When set on a client this is sent in
* the client hello as the supported signature algorithms extension. For
} SSL3_COMP;
# endif
-typedef struct raw_extension_st {
- /* Raw packet data for the extension */
- PACKET data;
- /* Set to 1 if the extension is present or 0 otherwise */
- int present;
- /* Set to 1 if we have already parsed the extension or 0 otherwise */
- int parsed;
- /* The type of this extension, i.e. a TLSEXT_TYPE_* value */
- unsigned int type;
-} RAW_EXTENSION;
-
/*
* Extension index values NOTE: Any updates to these defines should be mirrored
* with equivalent updates to ext_defs in extensions.c
TLSEXT_IDX_renegotiate,
TLSEXT_IDX_server_name,
TLSEXT_IDX_srp,
+ TLSEXT_IDX_early_data_info,
TLSEXT_IDX_ec_point_formats,
TLSEXT_IDX_supported_groups,
TLSEXT_IDX_session_ticket,
TLSEXT_IDX_psk_kex_modes,
TLSEXT_IDX_key_share,
TLSEXT_IDX_cryptopro_bug,
+ TLSEXT_IDX_early_data,
TLSEXT_IDX_padding,
TLSEXT_IDX_psk
} TLSEXT_INDEX;
#define TLSEXT_signature_rsa_pss 0x0101
-#define MAX_COMPRESSIONS_SIZE 255
-
-typedef struct {
- unsigned int isv2;
- unsigned int legacy_version;
- unsigned char random[SSL3_RANDOM_SIZE];
- size_t session_id_len;
- unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH];
- size_t dtls_cookie_len;
- unsigned char dtls_cookie[DTLS1_COOKIE_LENGTH];
- PACKET ciphersuites;
- size_t compressions_len;
- unsigned char compressions[MAX_COMPRESSIONS_SIZE];
- PACKET extensions;
- RAW_EXTENSION *pre_proc_exts;
-} CLIENTHELLO_MSG;
-
extern SSL3_ENC_METHOD ssl3_undef_enc_method;
__owur const SSL_METHOD *ssl_bad_method(int ver);
const char *ssl_protocol_to_string(int version);
+/* Returns true if certificate and private key for 'idx' are present */
+static ossl_inline int ssl_has_cert(const SSL *s, int idx)
+{
+ if (idx < 0 || idx >= SSL_PKEY_NUM)
+ return 0;
+ return s->cert->pkeys[idx].x509 != NULL
+ && s->cert->pkeys[idx].privatekey != NULL;
+}
+
# ifndef OPENSSL_UNIT_TEST
+int ssl_end_of_early_data_seen(SSL *s);
+__owur int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes);
+__owur int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written);
void ssl_clear_cipher_ctx(SSL *s);
int ssl_clear_bad_session(SSL *s);
__owur CERT *ssl_cert_new(void);
**sorted,
const char *rule_str,
CERT *c);
+__owur int ssl_cache_cipherlist(SSL *s, PACKET *cipher_suites,
+ int sslv2format, int *al);
+__owur int bytes_to_cipher_list(SSL *s, PACKET *cipher_suites,
+ STACK_OF(SSL_CIPHER) **skp,
+ STACK_OF(SSL_CIPHER) **scsvs, int sslv2format,
+ int *al);
void ssl_update_cache(SSL *s, int mode);
__owur int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
const EVP_MD **md, int *mac_pkey_type,
size_t *ext_overhead);
__owur int ssl_cipher_get_cert_index(const SSL_CIPHER *c);
__owur const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl,
- const unsigned char *ptr);
+ const unsigned char *ptr,
+ int all);
__owur int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
__owur int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
__owur int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
int ssl_undefined_function(SSL *s);
__owur int ssl_undefined_void_function(void);
__owur int ssl_undefined_const_function(const SSL *s);
-__owur CERT_PKEY *ssl_get_server_send_pkey(SSL *s);
__owur int ssl_get_server_cert_serverinfo(SSL *s,
const unsigned char **serverinfo,
size_t *serverinfo_length);
-__owur EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *c,
- const EVP_MD **pmd);
__owur int ssl_cert_type(const X509 *x, const EVP_PKEY *pkey);
void ssl_set_masks(SSL *s);
__owur STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s);
__owur size_t tls13_final_finish_mac(SSL *s, const char *str, size_t slen,
unsigned char *p);
__owur int tls13_change_cipher_state(SSL *s, int which);
+__owur int tls13_update_key(SSL *s, int send);
__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 *hash,
unsigned char *out, size_t outlen);
-__owur int tls13_derive_key(SSL *s, const unsigned char *secret,
- unsigned char *key, size_t keylen);
-__owur int tls13_derive_iv(SSL *s, const unsigned char *secret,
- unsigned char *iv, size_t ivlen);
+__owur int tls13_derive_key(SSL *s, const EVP_MD *md,
+ const unsigned char *secret, unsigned char *key,
+ size_t keylen);
+__owur int tls13_derive_iv(SSL *s, const EVP_MD *md,
+ const unsigned char *secret, unsigned char *iv,
+ size_t ivlen);
__owur int tls13_derive_finishedkey(SSL *s, const EVP_MD *md,
const unsigned char *secret,
unsigned char *fin, size_t finlen);
__owur int tls1_alert_code(int code);
__owur int tls13_alert_code(int code);
__owur int ssl3_alert_code(int code);
-__owur int ssl_ok(SSL *s);
# ifndef OPENSSL_NO_EC
__owur int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s);
# define TLS_CURVE_PRIME 0x0
# define TLS_CURVE_CHAR2 0x1
# define TLS_CURVE_CUSTOM 0x2
+
+#define bytestogroup(bytes) ((unsigned int)(bytes[0] << 8 | bytes[1]))
+
__owur int tls1_ec_curve_id2nid(int curve_id, unsigned int *pflags);
__owur int tls1_ec_nid2curve_id(int nid);
__owur int tls1_check_curve(SSL *s, const unsigned char *p, size_t len);
__owur int tls_use_ticket(SSL *s);
-__owur int tls12_get_sigandhash(SSL *s, WPACKET *pkt, const EVP_PKEY *pk,
- const EVP_MD *md, int *ispss);
void ssl_set_sig_mask(uint32_t *pmask_a, SSL *s, int op);
__owur int tls1_set_sigalgs_list(CERT *c, const char *str, int client);
__owur int ssl_security_cert_chain(SSL *s, STACK_OF(X509) *sk, X509 *ex,
int vfy);
-int tls_choose_sigalg(SSL *s);
+int tls_choose_sigalg(SSL *s, int *al);
__owur EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md);
void ssl_clear_hash_ctx(EVP_MD_CTX **hash);
const uint16_t *psig, size_t psiglen);
__owur int tls1_save_sigalgs(SSL *s, PACKET *pkt);
__owur int tls1_process_sigalgs(SSL *s);
+__owur int tls1_set_peer_legacy_sigalg(SSL *s, const EVP_PKEY *pkey);
__owur size_t tls12_get_psigalgs(SSL *s, int sent, const uint16_t **psigs);
__owur int tls12_check_peer_sigalg(SSL *s, uint16_t, EVP_PKEY *pkey);
void ssl_set_client_disabled(SSL *s);
const uint8_t *secret, size_t secret_len);
#define MASTER_SECRET_LABEL "CLIENT_RANDOM"
+#define CLIENT_EARLY_LABEL "CLIENT_EARLY_TRAFFIC_SECRET"
#define CLIENT_HANDSHAKE_LABEL "CLIENT_HANDSHAKE_TRAFFIC_SECRET"
#define SERVER_HANDSHAKE_LABEL "SERVER_HANDSHAKE_TRAFFIC_SECRET"
#define CLIENT_APPLICATION_LABEL "CLIENT_TRAFFIC_SECRET_0"
const unsigned char *mac_secret,
size_t mac_secret_length, char is_sslv3);
-__owur int tls_fips_digest_extra(const EVP_CIPHER_CTX *cipher_ctx,
- EVP_MD_CTX *mac_ctx, const unsigned char *data,
- size_t data_len, size_t orig_len);
-
__owur int srp_generate_server_master_secret(SSL *s);
__owur int srp_generate_client_master_secret(SSL *s);
__owur int srp_verify_server_param(SSL *s, int *al);
void ssl_comp_free_compression_methods_int(void);
-# else
+# else /* OPENSSL_UNIT_TEST */
# define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer
# define ssl3_setup_buffers SSL_test_functions()->p_ssl3_setup_buffers
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