2017-01-31 12:29:48 +00:00
|
|
|
/* $OpenBSD: packet.h,v 1.71 2016/03/07 19:02:43 djm Exp $ */
|
2002-03-18 09:55:03 +00:00
|
|
|
|
2000-02-24 14:29:47 +00:00
|
|
|
/*
|
|
|
|
* Author: Tatu Ylonen <ylo@cs.hut.fi>
|
|
|
|
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
|
|
|
|
* All rights reserved
|
|
|
|
* Interface for the packet protocol functions.
|
2000-05-15 04:37:24 +00:00
|
|
|
*
|
2000-09-10 08:31:17 +00:00
|
|
|
* As far as I am concerned, the code I have written for this software
|
|
|
|
* can be used freely for any purpose. Any derived versions of this
|
|
|
|
* software must be clearly marked as such, and if the derived work is
|
|
|
|
* incompatible with the protocol description in the RFC file, it must be
|
|
|
|
* called by a name other than "ssh" or "Secure Shell".
|
2000-02-24 14:29:47 +00:00
|
|
|
*/
|
|
|
|
|
|
|
|
#ifndef PACKET_H
|
|
|
|
#define PACKET_H
|
|
|
|
|
2006-09-30 13:29:51 +00:00
|
|
|
#include <termios.h>
|
|
|
|
|
2015-07-02 13:15:34 +00:00
|
|
|
#ifdef WITH_OPENSSL
|
|
|
|
# include <openssl/bn.h>
|
|
|
|
# ifdef OPENSSL_HAS_ECC
|
|
|
|
# include <openssl/ec.h>
|
|
|
|
# else /* OPENSSL_HAS_ECC */
|
|
|
|
# define EC_KEY void
|
|
|
|
# define EC_GROUP void
|
|
|
|
# define EC_POINT void
|
|
|
|
# endif /* OPENSSL_HAS_ECC */
|
|
|
|
#else /* WITH_OPENSSL */
|
|
|
|
# define BIGNUM void
|
|
|
|
# define EC_KEY void
|
|
|
|
# define EC_GROUP void
|
|
|
|
# define EC_POINT void
|
|
|
|
#endif /* WITH_OPENSSL */
|
|
|
|
|
|
|
|
#include <signal.h>
|
|
|
|
#include "openbsd-compat/sys-queue.h"
|
|
|
|
|
|
|
|
struct kex;
|
|
|
|
struct sshkey;
|
|
|
|
struct sshbuf;
|
|
|
|
struct session_state; /* private session data */
|
|
|
|
|
|
|
|
#include "dispatch.h" /* typedef, DISPATCH_MAX */
|
|
|
|
|
|
|
|
struct key_entry {
|
|
|
|
TAILQ_ENTRY(key_entry) next;
|
|
|
|
struct sshkey *key;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct ssh {
|
|
|
|
/* Session state */
|
|
|
|
struct session_state *state;
|
|
|
|
|
|
|
|
/* Key exchange */
|
|
|
|
struct kex *kex;
|
|
|
|
|
2017-01-31 12:29:48 +00:00
|
|
|
/* cached local and remote ip addresses and ports */
|
2015-07-02 13:15:34 +00:00
|
|
|
char *remote_ipaddr;
|
|
|
|
int remote_port;
|
2017-01-31 12:29:48 +00:00
|
|
|
char *local_ipaddr;
|
|
|
|
int local_port;
|
2015-07-02 13:15:34 +00:00
|
|
|
|
|
|
|
/* Dispatcher table */
|
|
|
|
dispatch_fn *dispatch[DISPATCH_MAX];
|
|
|
|
/* number of packets to ignore in the dispatcher */
|
|
|
|
int dispatch_skip_packets;
|
|
|
|
|
|
|
|
/* datafellows */
|
|
|
|
int compat;
|
|
|
|
|
|
|
|
/* Lists for private and public keys */
|
|
|
|
TAILQ_HEAD(, key_entry) private_keys;
|
|
|
|
TAILQ_HEAD(, key_entry) public_keys;
|
|
|
|
|
|
|
|
/* APP data */
|
|
|
|
void *app_data;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct ssh *ssh_alloc_session_state(void);
|
|
|
|
struct ssh *ssh_packet_set_connection(struct ssh *, int, int);
|
|
|
|
void ssh_packet_set_timeout(struct ssh *, int, int);
|
|
|
|
int ssh_packet_stop_discard(struct ssh *);
|
|
|
|
int ssh_packet_connection_af(struct ssh *);
|
|
|
|
void ssh_packet_set_nonblocking(struct ssh *);
|
|
|
|
int ssh_packet_get_connection_in(struct ssh *);
|
|
|
|
int ssh_packet_get_connection_out(struct ssh *);
|
|
|
|
void ssh_packet_close(struct ssh *);
|
|
|
|
void ssh_packet_set_encryption_key(struct ssh *, const u_char *, u_int, int);
|
2016-03-10 20:10:25 +00:00
|
|
|
int ssh_packet_is_rekeying(struct ssh *);
|
2015-07-02 13:15:34 +00:00
|
|
|
void ssh_packet_set_protocol_flags(struct ssh *, u_int);
|
|
|
|
u_int ssh_packet_get_protocol_flags(struct ssh *);
|
|
|
|
int ssh_packet_start_compression(struct ssh *, int);
|
|
|
|
void ssh_packet_set_tos(struct ssh *, int);
|
|
|
|
void ssh_packet_set_interactive(struct ssh *, int, int, int);
|
|
|
|
int ssh_packet_is_interactive(struct ssh *);
|
|
|
|
void ssh_packet_set_server(struct ssh *);
|
|
|
|
void ssh_packet_set_authenticated(struct ssh *);
|
|
|
|
|
|
|
|
int ssh_packet_send1(struct ssh *);
|
|
|
|
int ssh_packet_send2_wrapped(struct ssh *);
|
|
|
|
int ssh_packet_send2(struct ssh *);
|
|
|
|
|
|
|
|
int ssh_packet_read(struct ssh *);
|
|
|
|
int ssh_packet_read_expect(struct ssh *, u_int type);
|
|
|
|
int ssh_packet_read_poll(struct ssh *);
|
|
|
|
int ssh_packet_read_poll1(struct ssh *, u_char *);
|
|
|
|
int ssh_packet_read_poll2(struct ssh *, u_char *, u_int32_t *seqnr_p);
|
|
|
|
int ssh_packet_process_incoming(struct ssh *, const char *buf, u_int len);
|
|
|
|
int ssh_packet_read_seqnr(struct ssh *, u_char *, u_int32_t *seqnr_p);
|
|
|
|
int ssh_packet_read_poll_seqnr(struct ssh *, u_char *, u_int32_t *seqnr_p);
|
|
|
|
|
|
|
|
const void *ssh_packet_get_string_ptr(struct ssh *, u_int *length_ptr);
|
|
|
|
void ssh_packet_disconnect(struct ssh *, const char *fmt, ...)
|
|
|
|
__attribute__((format(printf, 2, 3)))
|
|
|
|
__attribute__((noreturn));
|
|
|
|
void ssh_packet_send_debug(struct ssh *, const char *fmt, ...) __attribute__((format(printf, 2, 3)));
|
|
|
|
|
|
|
|
int ssh_set_newkeys(struct ssh *, int mode);
|
|
|
|
void ssh_packet_get_bytes(struct ssh *, u_int64_t *, u_int64_t *);
|
|
|
|
|
|
|
|
typedef void *(ssh_packet_comp_alloc_func)(void *, u_int, u_int);
|
|
|
|
typedef void (ssh_packet_comp_free_func)(void *, void *);
|
|
|
|
void ssh_packet_set_compress_hooks(struct ssh *, void *,
|
|
|
|
ssh_packet_comp_alloc_func *, ssh_packet_comp_free_func *);
|
|
|
|
|
|
|
|
int ssh_packet_write_poll(struct ssh *);
|
|
|
|
int ssh_packet_write_wait(struct ssh *);
|
|
|
|
int ssh_packet_have_data_to_write(struct ssh *);
|
|
|
|
int ssh_packet_not_very_much_data_to_write(struct ssh *);
|
|
|
|
|
|
|
|
int ssh_packet_connection_is_on_socket(struct ssh *);
|
|
|
|
int ssh_packet_remaining(struct ssh *);
|
|
|
|
void ssh_packet_send_ignore(struct ssh *, int);
|
2002-03-18 09:55:03 +00:00
|
|
|
|
|
|
|
void tty_make_modes(int, struct termios *);
|
|
|
|
void tty_parse_modes(int, int *);
|
2000-02-24 14:29:47 +00:00
|
|
|
|
2015-07-02 13:15:34 +00:00
|
|
|
void ssh_packet_set_alive_timeouts(struct ssh *, int);
|
|
|
|
int ssh_packet_inc_alive_timeouts(struct ssh *);
|
|
|
|
int ssh_packet_set_maxsize(struct ssh *, u_int);
|
|
|
|
u_int ssh_packet_get_maxsize(struct ssh *);
|
|
|
|
|
|
|
|
int ssh_packet_get_state(struct ssh *, struct sshbuf *);
|
|
|
|
int ssh_packet_set_state(struct ssh *, struct sshbuf *);
|
|
|
|
|
|
|
|
const char *ssh_remote_ipaddr(struct ssh *);
|
2016-03-10 20:10:25 +00:00
|
|
|
int ssh_remote_port(struct ssh *);
|
2017-01-31 12:29:48 +00:00
|
|
|
const char *ssh_local_ipaddr(struct ssh *);
|
|
|
|
int ssh_local_port(struct ssh *);
|
2015-07-02 13:15:34 +00:00
|
|
|
|
2016-03-10 20:10:25 +00:00
|
|
|
void ssh_packet_set_rekey_limits(struct ssh *, u_int64_t, time_t);
|
2015-07-02 13:15:34 +00:00
|
|
|
time_t ssh_packet_get_rekey_timeout(struct ssh *);
|
|
|
|
|
|
|
|
void *ssh_packet_get_input(struct ssh *);
|
|
|
|
void *ssh_packet_get_output(struct ssh *);
|
|
|
|
|
|
|
|
/* new API */
|
|
|
|
int sshpkt_start(struct ssh *ssh, u_char type);
|
|
|
|
int sshpkt_send(struct ssh *ssh);
|
|
|
|
int sshpkt_disconnect(struct ssh *, const char *fmt, ...)
|
|
|
|
__attribute__((format(printf, 2, 3)));
|
|
|
|
int sshpkt_add_padding(struct ssh *, u_char);
|
|
|
|
void sshpkt_fatal(struct ssh *ssh, const char *tag, int r);
|
|
|
|
|
|
|
|
int sshpkt_put(struct ssh *ssh, const void *v, size_t len);
|
|
|
|
int sshpkt_putb(struct ssh *ssh, const struct sshbuf *b);
|
|
|
|
int sshpkt_put_u8(struct ssh *ssh, u_char val);
|
|
|
|
int sshpkt_put_u32(struct ssh *ssh, u_int32_t val);
|
|
|
|
int sshpkt_put_u64(struct ssh *ssh, u_int64_t val);
|
|
|
|
int sshpkt_put_string(struct ssh *ssh, const void *v, size_t len);
|
|
|
|
int sshpkt_put_cstring(struct ssh *ssh, const void *v);
|
|
|
|
int sshpkt_put_stringb(struct ssh *ssh, const struct sshbuf *v);
|
|
|
|
int sshpkt_put_ec(struct ssh *ssh, const EC_POINT *v, const EC_GROUP *g);
|
|
|
|
int sshpkt_put_bignum1(struct ssh *ssh, const BIGNUM *v);
|
|
|
|
int sshpkt_put_bignum2(struct ssh *ssh, const BIGNUM *v);
|
|
|
|
|
|
|
|
int sshpkt_get(struct ssh *ssh, void *valp, size_t len);
|
|
|
|
int sshpkt_get_u8(struct ssh *ssh, u_char *valp);
|
|
|
|
int sshpkt_get_u32(struct ssh *ssh, u_int32_t *valp);
|
|
|
|
int sshpkt_get_u64(struct ssh *ssh, u_int64_t *valp);
|
|
|
|
int sshpkt_get_string(struct ssh *ssh, u_char **valp, size_t *lenp);
|
|
|
|
int sshpkt_get_string_direct(struct ssh *ssh, const u_char **valp, size_t *lenp);
|
|
|
|
int sshpkt_get_cstring(struct ssh *ssh, char **valp, size_t *lenp);
|
|
|
|
int sshpkt_get_ec(struct ssh *ssh, EC_POINT *v, const EC_GROUP *g);
|
|
|
|
int sshpkt_get_bignum1(struct ssh *ssh, BIGNUM *v);
|
|
|
|
int sshpkt_get_bignum2(struct ssh *ssh, BIGNUM *v);
|
|
|
|
int sshpkt_get_end(struct ssh *ssh);
|
|
|
|
const u_char *sshpkt_ptr(struct ssh *, size_t *lenp);
|
|
|
|
|
|
|
|
/* OLD API */
|
|
|
|
extern struct ssh *active_state;
|
|
|
|
#include "opacket.h"
|
|
|
|
|
|
|
|
#if !defined(WITH_OPENSSL)
|
|
|
|
# undef BIGNUM
|
|
|
|
# undef EC_KEY
|
|
|
|
# undef EC_GROUP
|
|
|
|
# undef EC_POINT
|
|
|
|
#elif !defined(OPENSSL_HAS_ECC)
|
|
|
|
# undef EC_KEY
|
|
|
|
# undef EC_GROUP
|
|
|
|
# undef EC_POINT
|
|
|
|
#endif
|
2009-10-01 15:19:37 +00:00
|
|
|
|
2000-02-24 14:29:47 +00:00
|
|
|
#endif /* PACKET_H */
|