tortls.h
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上传日期:2019-07-14
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- /* Copyright (c) 2003, Roger Dingledine
- * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
- * Copyright (c) 2007-2009, The Tor Project, Inc. */
- /* See LICENSE for licensing information */
- #ifndef _TOR_TORTLS_H
- #define _TOR_TORTLS_H
- /**
- * file tortls.h
- * brief Headers for tortls.c
- **/
- #include "crypto.h"
- #include "compat.h"
- /* Opaque structure to hold a TLS connection. */
- typedef struct tor_tls_t tor_tls_t;
- /* Possible return values for most tor_tls_* functions. */
- #define _MIN_TOR_TLS_ERROR_VAL -9
- #define TOR_TLS_ERROR_MISC -9
- /* Rename to unexpected close or something. XXXX */
- #define TOR_TLS_ERROR_IO -8
- #define TOR_TLS_ERROR_CONNREFUSED -7
- #define TOR_TLS_ERROR_CONNRESET -6
- #define TOR_TLS_ERROR_NO_ROUTE -5
- #define TOR_TLS_ERROR_TIMEOUT -4
- #define TOR_TLS_CLOSE -3
- #define TOR_TLS_WANTREAD -2
- #define TOR_TLS_WANTWRITE -1
- #define TOR_TLS_DONE 0
- /** Collection of case statements for all TLS errors that are not due to
- * underlying IO failure. */
- #define CASE_TOR_TLS_ERROR_ANY_NONIO
- case TOR_TLS_ERROR_MISC:
- case TOR_TLS_ERROR_CONNREFUSED:
- case TOR_TLS_ERROR_CONNRESET:
- case TOR_TLS_ERROR_NO_ROUTE:
- case TOR_TLS_ERROR_TIMEOUT
- /** Use this macro in a switch statement to catch _any_ TLS error. That way,
- * if more errors are added, your switches will still work. */
- #define CASE_TOR_TLS_ERROR_ANY
- CASE_TOR_TLS_ERROR_ANY_NONIO:
- case TOR_TLS_ERROR_IO
- #define TOR_TLS_IS_ERROR(rv) ((rv) < TOR_TLS_CLOSE)
- const char *tor_tls_err_to_string(int err);
- void tor_tls_free_all(void);
- int tor_tls_context_new(crypto_pk_env_t *rsa, unsigned int key_lifetime);
- tor_tls_t *tor_tls_new(int sock, int is_server);
- void tor_tls_set_logged_address(tor_tls_t *tls, const char *address);
- void tor_tls_set_renegotiate_callback(tor_tls_t *tls,
- void (*cb)(tor_tls_t *, void *arg),
- void *arg);
- int tor_tls_is_server(tor_tls_t *tls);
- void tor_tls_free(tor_tls_t *tls);
- int tor_tls_peer_has_cert(tor_tls_t *tls);
- int tor_tls_verify(int severity, tor_tls_t *tls, crypto_pk_env_t **identity);
- int tor_tls_check_lifetime(tor_tls_t *tls, int tolerance);
- int tor_tls_read(tor_tls_t *tls, char *cp, size_t len);
- int tor_tls_write(tor_tls_t *tls, const char *cp, size_t n);
- int tor_tls_handshake(tor_tls_t *tls);
- int tor_tls_renegotiate(tor_tls_t *tls);
- int tor_tls_shutdown(tor_tls_t *tls);
- int tor_tls_get_pending_bytes(tor_tls_t *tls);
- size_t tor_tls_get_forced_write_size(tor_tls_t *tls);
- void tor_tls_get_n_raw_bytes(tor_tls_t *tls,
- size_t *n_read, size_t *n_written);
- void tor_tls_get_buffer_sizes(tor_tls_t *tls,
- size_t *rbuf_capacity, size_t *rbuf_bytes,
- size_t *wbuf_capacity, size_t *wbuf_bytes);
- int tor_tls_used_v1_handshake(tor_tls_t *tls);
- /* Log and abort if there are unhandled TLS errors in OpenSSL's error stack.
- */
- #define check_no_tls_errors() _check_no_tls_errors(__FILE__,__LINE__)
- void _check_no_tls_errors(const char *fname, int line);
- #endif