*/
# define SSL_EXP_MASK 0x00000003L
# define SSL_STRONG_MASK 0x000001fcL
+# define SSL_DEFAULT_MASK 0X00000200L
# define SSL_NOT_EXP 0x00000001L
# define SSL_EXPORT 0x00000002L
# define SSL_HIGH 0x00000080L
# define SSL_FIPS 0x00000100L
-/* we have used 000001ff - 23 bits left to go */
+# define SSL_NOT_DEFAULT 0x00000200L
+
+/* we have used 000003ff - 22 bits left to go */
/*-
* Macros to check the export status and cipher strength for export ciphers.
#define CERT_PRIVATE_KEY 2
*/
+
+/* CipherSuite length. SSLv3 and all TLS versions. */
+#define TLS_CIPHER_LEN 2
/* used to hold info on the particular ciphers used */
struct ssl_cipher_st {
int valid;
DECLARE_STACK_OF(SSL_COMP)
DECLARE_LHASH_OF(SSL_SESSION);
+/*
+ * The valid handshake states (one for each type message sent and one for each
+ * type of message received). There are also two "special" states:
+ * TLS = TLS or DTLS state
+ * DTLS = DTLS specific state
+ * CR/SR = Client Read/Server Read
+ * CW/SW = Client Write/Server Write
+ *
+ * The "special" states are:
+ * TLS_ST_BEFORE = No handshake has been initiated yet
+ * TLS_ST_OK = A handshake has been successfully completed
+ */
+enum HANDSHAKE_STATE {
+ TLS_ST_BEFORE,
+ TLS_ST_OK,
+ DTLS_ST_CR_HELLO_VERIFY_REQUEST,
+ TLS_ST_CR_SRVR_HELLO,
+ TLS_ST_CR_CERT,
+ TLS_ST_CR_CERT_STATUS,
+ TLS_ST_CR_KEY_EXCH,
+ TLS_ST_CR_CERT_REQ,
+ TLS_ST_CR_SRVR_DONE,
+ TLS_ST_CR_SESSION_TICKET,
+ TLS_ST_CR_CHANGE,
+ TLS_ST_CR_FINISHED,
+ TLS_ST_CW_CLNT_HELLO,
+ TLS_ST_CW_CERT,
+ TLS_ST_CW_KEY_EXCH,
+ TLS_ST_CW_CERT_VRFY,
+ TLS_ST_CW_CHANGE,
+ TLS_ST_CW_NEXT_PROTO,
+ TLS_ST_CW_FINISHED,
+ TLS_ST_SW_HELLO_REQ,
+ TLS_ST_SR_CLNT_HELLO,
+ DTLS_ST_SW_HELLO_VERIFY_REQUEST,
+ TLS_ST_SW_SRVR_HELLO,
+ TLS_ST_SW_CERT,
+ TLS_ST_SW_KEY_EXCH,
+ TLS_ST_SW_CERT_REQ,
+ TLS_ST_SW_SRVR_DONE,
+ TLS_ST_SR_CERT,
+ TLS_ST_SR_KEY_EXCH,
+ TLS_ST_SR_CERT_VRFY,
+ TLS_ST_SR_NEXT_PROTO,
+ TLS_ST_SR_CHANGE,
+ TLS_ST_SR_FINISHED,
+ TLS_ST_SW_SESSION_TICKET,
+ TLS_ST_SW_CERT_STATUS,
+ TLS_ST_SW_CHANGE,
+ TLS_ST_SW_FINISHED
+};
+
+/*
+ * Valid return codes used for functions performing work prior to or after
+ * sending or receiving a message
+ */
+enum WORK_STATE {
+ /* Something went wrong */
+ WORK_ERROR,
+ /* We're done working and there shouldn't be anything else to do after */
+ WORK_FINISHED_STOP,
+ /* We're done working move onto the next thing */
+ WORK_FINISHED_CONTINUE,
+ /* We're working on phase A */
+ WORK_MORE_A,
+ /* We're working on phase B */
+ WORK_MORE_B
+};
+
+/* Write transition return codes */
+enum WRITE_TRAN {
+ /* Something went wrong */
+ WRITE_TRAN_ERROR,
+ /* A transition was successfully completed and we should continue */
+ WRITE_TRAN_CONTINUE,
+ /* There is no more write work to be done */
+ WRITE_TRAN_FINISHED
+};
+
+/* Message processing return codes */
+enum MSG_PROCESS_RETURN {
+ MSG_PROCESS_ERROR,
+ MSG_PROCESS_FINISHED_READING,
+ MSG_PROCESS_CONTINUE_PROCESSING,
+ MSG_PROCESS_CONTINUE_READING
+};
+
+/* Message flow states */
+enum MSG_FLOW_STATE {
+ /* No handshake in progress */
+ MSG_FLOW_UNINITED,
+ /* A permanent error with this connection */
+ MSG_FLOW_ERROR,
+ /* We are about to renegotiate */
+ MSG_FLOW_RENEGOTIATE,
+ /* We are reading messages */
+ MSG_FLOW_READING,
+ /* We are writing messages */
+ MSG_FLOW_WRITING,
+ /* Handshake has finished */
+ MSG_FLOW_FINISHED
+};
+
+/* Read states */
+enum READ_STATE {
+ READ_STATE_HEADER,
+ READ_STATE_BODY,
+ READ_STATE_POST_PROCESS
+};
+
+/* Write states */
+enum WRITE_STATE {
+ WRITE_STATE_TRANSITION,
+ WRITE_STATE_PRE_WORK,
+ WRITE_STATE_SEND,
+ WRITE_STATE_POST_WORK
+};
+
+struct statem_st {
+ enum MSG_FLOW_STATE state;
+ enum WRITE_STATE write_state;
+ enum WORK_STATE write_state_work;
+ enum READ_STATE read_state;
+ enum WORK_STATE read_state_work;
+ enum HANDSHAKE_STATE hand_state;
+ int read_state_first_init;
+ int use_timer;
+#ifndef OPENSSL_NO_SCTP
+ int in_sctp_read_sock;
+#endif
+};
+typedef struct statem_st STATEM;
+
+
struct ssl_ctx_st {
const SSL_METHOD *method;
STACK_OF(SSL_CIPHER) *cipher_list;
unsigned int *cookie_len);
/* verify cookie callback */
- int (*app_verify_cookie_cb) (SSL *ssl, unsigned char *cookie,
+ int (*app_verify_cookie_cb) (SSL *ssl, const unsigned char *cookie,
unsigned int cookie_len);
CRYPTO_EX_DATA ex_data;
void *tlsext_status_arg;
# ifndef OPENSSL_NO_PSK
- char *psk_identity_hint;
unsigned int (*psk_client_callback) (SSL *ssl, const char *hint,
char *identity,
unsigned int max_identity_len,
int shutdown;
/* where we are */
int state;
+ STATEM statem;
+
BUF_MEM *init_buf; /* buffer used during init */
void *init_msg; /* pointer to handshake message body, set by
* ssl3_get_message() */
/* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */
# define DTLS1_MAX_MTU_OVERHEAD 48
+/*
+ * Flag used in message reuse to indicate the buffer contains the record
+ * header as well as the the handshake message header.
+ */
+# define DTLS1_SKIP_RECORD_HEADER 2
+
struct dtls1_retransmit_state {
EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */
EVP_MD_CTX *write_hash; /* used for mac generation */
} hm_fragment;
typedef struct dtls1_state_st {
- unsigned int send_cookie;
unsigned char cookie[DTLS1_COOKIE_LENGTH];
- unsigned char rcvd_cookie[DTLS1_COOKIE_LENGTH];
unsigned int cookie_len;
/* handshake message numbers */
/* Buffered (sent) handshake records */
pqueue sent_messages;
- /* Is set when listening for new connections with dtls1_listen() */
- unsigned int listen;
unsigned int link_mtu; /* max on-the-wire DTLS packet size */
unsigned int mtu; /* max DTLS packet size */
struct hm_header_st w_msg_hdr;
/* Security level */
int sec_level;
void *sec_ex;
+#ifndef OPENSSL_NO_PSK
+ /* If not NULL psk identity hint to use for servers */
+ char *psk_identity_hint;
+#endif
int references; /* >1 only if SSL_copy_session_id is used */
} CERT;
*/
# define FP_ICC (int (*)(const void *,const void *))
-# define ssl_put_cipher_by_char(ssl,ciph,ptr) \
- ((ssl)->method->put_cipher_by_char((ciph),(ptr)))
/*
* This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit
void ssl_cert_clear_certs(CERT *c);
void ssl_cert_free(CERT *c);
__owur int ssl_get_new_session(SSL *s, int session);
-__owur int ssl_get_prev_session(SSL *s, PACKET *pkt, unsigned char *session,
- int len);
+__owur int ssl_get_prev_session(SSL *s, const PACKET *ext,
+ const PACKET *session_id);
__owur SSL_SESSION *ssl_session_dup(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 ssl3_send_cert_status(SSL *s);
__owur int ssl3_get_change_cipher_spec(SSL *s, int a, int b);
__owur int ssl3_get_finished(SSL *s, int state_a, int state_b);
+__owur int tls_construct_cert_status(SSL *s);
+__owur enum MSG_PROCESS_RETURN tls_process_change_cipher_spec(SSL *s, long n);
+__owur enum MSG_PROCESS_RETURN tls_process_finished(SSL *s, unsigned long n);
__owur int ssl3_setup_key_block(SSL *s);
__owur int ssl3_send_change_cipher_spec(SSL *s, int state_a, int state_b);
+__owur int tls_construct_change_cipher_spec(SSL *s);
+__owur int dtls_construct_change_cipher_spec(SSL *s);
__owur int ssl3_change_cipher_state(SSL *s, int which);
void ssl3_cleanup_key_block(SSL *s);
__owur int ssl3_do_write(SSL *s, int type);
unsigned char *p, int len);
__owur int ssl3_get_req_cert_type(SSL *s, unsigned char *p);
__owur long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
+__owur int tls_get_message_header(SSL *s, int *mt);
+__owur int tls_get_message_body(SSL *s, unsigned long *len);
__owur int ssl3_send_finished(SSL *s, int a, int b, const char *sender, int slen);
+__owur int tls_construct_finished(SSL *s, const char *sender, int slen);
+__owur enum WORK_STATE tls_finish_handshake(SSL *s, enum WORK_STATE wst);
+__owur enum WORK_STATE dtls_wait_for_dry(SSL *s);
__owur int ssl3_num_ciphers(void);
__owur const SSL_CIPHER *ssl3_get_cipher(unsigned int u);
int ssl3_renegotiate(SSL *ssl);
void ssl3_free(SSL *s);
__owur int ssl3_accept(SSL *s);
__owur int ssl3_connect(SSL *s);
+void statem_clear(SSL *s);
+void statem_set_renegotiate(SSL *s);
+void statem_set_error(SSL *s);
+__owur int statem_app_data_allowed(SSL *s);
+#ifndef OPENSSL_NO_SCTP
+void statem_set_sctp_read_sock(SSL *s, int read_sock);
+__owur int statem_in_sctp_read_sock(SSL *s);
+#endif
__owur int ssl3_read(SSL *s, void *buf, int len);
__owur int ssl3_peek(SSL *s, void *buf, int len);
__owur int ssl3_write(SSL *s, const void *buf, int len);
void dtls1_stop_timer(SSL *s);
__owur int dtls1_is_timer_expired(SSL *s);
void dtls1_double_timeout(SSL *s);
+__owur unsigned int dtls1_raw_hello_verify_request(unsigned char *buf,
+ unsigned char *cookie,
+ unsigned char cookie_len);
__owur int dtls1_send_newsession_ticket(SSL *s);
__owur unsigned int dtls1_min_mtu(SSL *s);
__owur unsigned int dtls1_link_min_mtu(void);
void dtls1_hm_fragment_free(hm_fragment *frag);
/* some client-only functions */
-__owur int ssl3_client_hello(SSL *s);
-__owur int ssl3_get_server_hello(SSL *s);
-__owur int ssl3_get_certificate_request(SSL *s);
-__owur int ssl3_get_new_session_ticket(SSL *s);
-__owur int ssl3_get_cert_status(SSL *s);
-__owur int ssl3_get_server_done(SSL *s);
-__owur int ssl3_send_client_verify(SSL *s);
-__owur int ssl3_send_client_certificate(SSL *s);
+__owur int tls_construct_client_hello(SSL *s);
+__owur enum MSG_PROCESS_RETURN tls_process_server_hello(SSL *s,
+ unsigned long n);
+__owur enum MSG_PROCESS_RETURN tls_process_certificate_request(SSL *s,
+ unsigned long n);
+__owur enum MSG_PROCESS_RETURN tls_process_new_session_ticket(SSL *s,
+ unsigned long n);
+__owur enum MSG_PROCESS_RETURN tls_process_cert_status(SSL *s, unsigned long n);
+__owur enum MSG_PROCESS_RETURN tls_process_server_done(SSL *s, unsigned long n);
+__owur int tls_construct_client_verify(SSL *s);
+__owur enum WORK_STATE tls_prepare_client_certificate(SSL *s,
+ enum WORK_STATE wst);
+__owur int tls_construct_client_certificate(SSL *s);
__owur int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey);
-__owur int ssl3_send_client_key_exchange(SSL *s);
-__owur int ssl3_get_key_exchange(SSL *s);
-__owur int ssl3_get_server_certificate(SSL *s);
+__owur int tls_construct_client_key_exchange(SSL *s);
+__owur int tls_client_key_exchange_post_work(SSL *s);
+__owur enum MSG_PROCESS_RETURN tls_process_key_exchange(SSL *s,
+ unsigned long n);
+__owur enum MSG_PROCESS_RETURN tls_process_server_certificate(SSL *s,
+ unsigned long n);
__owur int ssl3_check_cert_and_algorithm(SSL *s);
# ifndef OPENSSL_NO_NEXTPROTONEG
-__owur int ssl3_send_next_proto(SSL *s);
+__owur int tls_construct_next_proto(SSL *s);
# endif
-
-int dtls1_client_hello(SSL *s);
+__owur enum MSG_PROCESS_RETURN dtls_process_hello_verify(SSL *s,
+ unsigned long n);
/* some server-only functions */
__owur int ssl3_get_client_hello(SSL *s);
__owur int ssl3_send_server_hello(SSL *s);
+__owur enum MSG_PROCESS_RETURN tls_process_client_hello(SSL *s, long n);
+__owur enum WORK_STATE tls_post_process_client_hello(SSL *s,
+ enum WORK_STATE wst);
+__owur int tls_construct_server_hello(SSL *s);
__owur int ssl3_send_hello_request(SSL *s);
__owur int ssl3_send_server_key_exchange(SSL *s);
__owur int ssl3_send_certificate_request(SSL *s);
__owur int ssl3_get_client_certificate(SSL *s);
__owur int ssl3_get_client_key_exchange(SSL *s);
__owur int ssl3_get_cert_verify(SSL *s);
+__owur enum MSG_PROCESS_RETURN tls_process_client_certificate(SSL *s, long n);
+__owur enum MSG_PROCESS_RETURN tls_process_client_key_exchange(SSL *s, long n);
+__owur enum WORK_STATE tls_post_process_client_key_exchange(SSL *s,
+ enum WORK_STATE wst);
+__owur enum MSG_PROCESS_RETURN tls_process_cert_verify(SSL *s, long n);
# ifndef OPENSSL_NO_NEXTPROTONEG
__owur int ssl3_get_next_proto(SSL *s);
+__owur enum MSG_PROCESS_RETURN tls_process_next_proto(SSL *s, long n);
# endif
__owur int tls1_new(SSL *s);
__owur int dtls1_shutdown(SSL *s);
__owur long dtls1_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
+__owur int dtls_get_message(SSL *s, int *mt, unsigned long *len);
__owur int dtls1_dispatch_alert(SSL *s);
__owur int ssl_init_wbio_buffer(SSL *s, int push);
__owur int dtls1_process_heartbeat(SSL *s, unsigned char *p, unsigned int length);
# endif
-__owur int tls1_process_ticket(SSL *s, PACKET *pkt, unsigned char *session_id,
- int len, SSL_SESSION **ret);
+__owur int tls1_process_ticket(SSL *s, const PACKET *ext,
+ const PACKET *session_id, SSL_SESSION **ret);
__owur int tls12_get_sigandhash(unsigned char *p, const EVP_PKEY *pk,
const EVP_MD *md);
projects / openssl.git / blobdiff