mirror of
https://gitlab.torproject.org/tpo/core/tor.git
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95 lines
3.4 KiB
C
95 lines
3.4 KiB
C
/* Copyright (c) 2003, Roger Dingledine
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* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
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* Copyright (c) 2007, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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/* $Id$ */
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#ifndef _TORTLS_H
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#define _TORTLS_H
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#define TORTLS_H_ID "$Id$"
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/**
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* \file tortls.h
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* \brief Headers for tortls.c
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**/
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#include "crypto.h"
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#include "compat.h"
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/* Opaque structure to hold a TLS connection. */
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typedef struct tor_tls_t tor_tls_t;
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/* Possible return values for most tor_tls_* functions. */
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#define _MIN_TOR_TLS_ERROR_VAL -9
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#define TOR_TLS_ERROR_MISC -9
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/* Rename to unexpected close or something. XXXX */
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#define TOR_TLS_ERROR_IO -8
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#define TOR_TLS_ERROR_CONNREFUSED -7
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#define TOR_TLS_ERROR_CONNRESET -6
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#define TOR_TLS_ERROR_NO_ROUTE -5
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#define TOR_TLS_ERROR_TIMEOUT -4
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#define TOR_TLS_CLOSE -3
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#define TOR_TLS_WANTREAD -2
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#define TOR_TLS_WANTWRITE -1
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#define TOR_TLS_DONE 0
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/** Use this macro in a switch statement to catch _any_ TLS error. That way,
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* if more errors are added, your switches will still work. */
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#define CASE_TOR_TLS_ERROR_ANY \
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case TOR_TLS_ERROR_MISC: \
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case TOR_TLS_ERROR_IO: \
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case TOR_TLS_ERROR_CONNREFUSED: \
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case TOR_TLS_ERROR_CONNRESET: \
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case TOR_TLS_ERROR_NO_ROUTE: \
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case TOR_TLS_ERROR_TIMEOUT
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/**DOCDOC*/
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#define TOR_TLS_RANDOM_LEN 32
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#define TOR_TLS_IS_ERROR(rv) ((rv) < TOR_TLS_CLOSE)
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const char *tor_tls_err_to_string(int err);
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void tor_tls_free_all(void);
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int tor_tls_context_new(crypto_pk_env_t *rsa,
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const char *nickname, unsigned int key_lifetime);
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tor_tls_t *tor_tls_new(int sock, int is_server);
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void tor_tls_set_renegotiate_callback(tor_tls_t *tls,
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void (*cb)(tor_tls_t *, void *arg),
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void *arg);
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int tor_tls_is_server(tor_tls_t *tls);
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void tor_tls_free(tor_tls_t *tls);
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int tor_tls_peer_has_cert(tor_tls_t *tls);
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int tor_tls_get_cert_digests(tor_tls_t *tls, char *my_digest_out,
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char *peer_digest_out);
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char *tor_tls_encode_my_certificate(tor_tls_t *tls, size_t *size_out,
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int conn_cert);
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crypto_pk_env_t *tor_tls_dup_private_key(tor_tls_t *tls);
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int tor_tls_verify_v1(int severity, tor_tls_t *tls,
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crypto_pk_env_t **identity);
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int tor_tls_check_lifetime(tor_tls_t *tls, int tolerance);
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int tor_tls_read(tor_tls_t *tls, char *cp, size_t len);
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int tor_tls_write(tor_tls_t *tls, const char *cp, size_t n);
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int tor_tls_handshake(tor_tls_t *tls);
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int tor_tls_renegotiate(tor_tls_t *tls);
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int tor_tls_shutdown(tor_tls_t *tls);
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int tor_tls_get_pending_bytes(tor_tls_t *tls);
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size_t tor_tls_get_forced_write_size(tor_tls_t *tls);
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void tor_tls_get_n_raw_bytes(tor_tls_t *tls,
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size_t *n_read, size_t *n_written);
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int tor_tls_used_v1_handshake(tor_tls_t *tls);
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int tor_tls_get_random_values(tor_tls_t *tls, char *client_random_out,
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char *server_random_out);
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int tor_tls_hmac_with_master_secret(tor_tls_t *tls, char *hmac_out,
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const char *data, size_t data_len);
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/* Log and abort if there are unhandled TLS errors in OpenSSL's error stack.
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*/
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#define check_no_tls_errors() _check_no_tls_errors(__FILE__,__LINE__)
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void _check_no_tls_errors(const char *fname, int line);
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#endif
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