135 lines
4.4 KiB
C
135 lines
4.4 KiB
C
/* $OpenBSD: packet.h,v 1.59 2013/07/12 00:19:59 djm Exp $ */
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/* $FreeBSD$ */
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/*
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* Author: Tatu Ylonen <ylo@cs.hut.fi>
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* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
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* All rights reserved
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* Interface for the packet protocol functions.
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*
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* As far as I am concerned, the code I have written for this software
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* can be used freely for any purpose. Any derived versions of this
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* software must be clearly marked as such, and if the derived work is
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* incompatible with the protocol description in the RFC file, it must be
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* called by a name other than "ssh" or "Secure Shell".
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*/
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#ifndef PACKET_H
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#define PACKET_H
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#include <termios.h>
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#include <openssl/bn.h>
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#ifdef OPENSSL_HAS_ECC
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#include <openssl/ec.h>
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#endif
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void packet_set_connection(int, int);
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void packet_set_timeout(int, int);
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void packet_set_nonblocking(void);
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int packet_get_connection_in(void);
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int packet_get_connection_out(void);
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void packet_close(void);
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void packet_set_encryption_key(const u_char *, u_int, int);
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u_int packet_get_encryption_key(u_char *);
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void packet_set_protocol_flags(u_int);
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u_int packet_get_protocol_flags(void);
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void packet_start_compression(int);
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void packet_set_interactive(int, int, int);
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int packet_is_interactive(void);
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void packet_set_server(void);
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void packet_set_authenticated(void);
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#ifdef NONE_CIPHER_ENABLED
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int packet_get_authentication_state(void);
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#endif
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void packet_start(u_char);
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void packet_put_char(int ch);
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void packet_put_int(u_int value);
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void packet_put_int64(u_int64_t value);
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void packet_put_bignum(BIGNUM * value);
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void packet_put_bignum2(BIGNUM * value);
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#ifdef OPENSSL_HAS_ECC
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void packet_put_ecpoint(const EC_GROUP *, const EC_POINT *);
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#endif
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void packet_put_string(const void *buf, u_int len);
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void packet_put_cstring(const char *str);
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void packet_put_raw(const void *buf, u_int len);
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void packet_send(void);
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int packet_read(void);
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void packet_read_expect(int type);
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void packet_process_incoming(const char *buf, u_int len);
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int packet_read_seqnr(u_int32_t *seqnr_p);
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int packet_read_poll_seqnr(u_int32_t *seqnr_p);
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u_int packet_get_char(void);
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u_int packet_get_int(void);
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u_int64_t packet_get_int64(void);
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void packet_get_bignum(BIGNUM * value);
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void packet_get_bignum2(BIGNUM * value);
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#ifdef OPENSSL_HAS_ECC
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void packet_get_ecpoint(const EC_GROUP *, EC_POINT *);
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#endif
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void *packet_get_raw(u_int *length_ptr);
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void *packet_get_string(u_int *length_ptr);
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char *packet_get_cstring(u_int *length_ptr);
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void *packet_get_string_ptr(u_int *length_ptr);
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void packet_disconnect(const char *fmt,...) __attribute__((noreturn)) __attribute__((format(printf, 1, 2)));
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void packet_send_debug(const char *fmt,...) __attribute__((format(printf, 1, 2)));
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void set_newkeys(int mode);
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int packet_get_keyiv_len(int);
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void packet_get_keyiv(int, u_char *, u_int);
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int packet_get_keycontext(int, u_char *);
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void packet_set_keycontext(int, u_char *);
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void packet_get_state(int, u_int32_t *, u_int64_t *, u_int32_t *, u_int64_t *);
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void packet_set_state(int, u_int32_t, u_int64_t, u_int32_t, u_int64_t);
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int packet_get_ssh1_cipher(void);
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void packet_set_iv(int, u_char *);
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void *packet_get_newkeys(int);
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void packet_write_poll(void);
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void packet_write_wait(void);
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int packet_have_data_to_write(void);
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int packet_not_very_much_data_to_write(void);
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int packet_connection_is_on_socket(void);
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int packet_remaining(void);
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void packet_send_ignore(int);
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void packet_add_padding(u_char);
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void tty_make_modes(int, struct termios *);
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void tty_parse_modes(int, int *);
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void packet_set_alive_timeouts(int);
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int packet_inc_alive_timeouts(void);
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int packet_set_maxsize(u_int);
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u_int packet_get_maxsize(void);
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/* don't allow remaining bytes after the end of the message */
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#define packet_check_eom() \
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do { \
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int _len = packet_remaining(); \
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if (_len > 0) { \
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logit("Packet integrity error (%d bytes remaining) at %s:%d", \
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_len ,__FILE__, __LINE__); \
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packet_disconnect("Packet integrity error."); \
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} \
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} while (0)
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int packet_need_rekeying(void);
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#ifdef NONE_CIPHER_ENABLED
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void packet_request_rekeying(void);
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#endif
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void packet_set_rekey_limits(u_int32_t, time_t);
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time_t packet_get_rekey_timeout(void);
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void packet_backup_state(void);
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void packet_restore_state(void);
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void *packet_get_input(void);
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void *packet_get_output(void);
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#endif /* PACKET_H */
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