2 * Author: Tatu Ylonen <ylo@cs.hut.fi>
3 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
5 * Interface for the packet protocol functions.
7 * As far as I am concerned, the code I have written for this software
8 * can be used freely for any purpose. Any derived versions of this
9 * software must be clearly marked as such, and if the derived work is
10 * incompatible with the protocol description in the RFC file, it must be
11 * called by a name other than "ssh" or "Secure Shell".
14 /* RCSID("$OpenBSD: packet.h,v 1.25 2001/06/26 17:27:24 markus Exp $"); */
19 #include <openssl/bn.h>
21 void packet_set_connection(int, int);
22 void packet_set_nonblocking(void);
23 int packet_get_connection_in(void);
24 int packet_get_connection_out(void);
25 void packet_close(void);
26 void packet_set_encryption_key(const u_char *, u_int, int);
27 void packet_set_protocol_flags(u_int);
28 u_int packet_get_protocol_flags(void);
29 void packet_start_compression(int);
30 void packet_set_interactive(int);
31 int packet_is_interactive(void);
33 void packet_start(u_char);
34 void packet_put_char(int ch);
35 void packet_put_int(u_int value);
36 void packet_put_bignum(BIGNUM * value);
37 void packet_put_bignum2(BIGNUM * value);
38 void packet_put_string(const char *buf, u_int len);
39 void packet_put_cstring(const char *str);
40 void packet_put_raw(const char *buf, u_int len);
41 void packet_send(void);
43 int packet_read(int *payload_len_ptr);
44 void packet_read_expect(int *payload_len_ptr, int type);
45 int packet_read_poll(int *packet_len_ptr);
46 void packet_process_incoming(const char *buf, u_int len);
48 u_int packet_get_char(void);
49 u_int packet_get_int(void);
50 void packet_get_bignum(BIGNUM * value, int *length_ptr);
51 void packet_get_bignum2(BIGNUM * value, int *length_ptr);
52 char *packet_get_raw(int *length_ptr);
53 char *packet_get_string(u_int *length_ptr);
54 void packet_disconnect(const char *fmt,...) __attribute__((format(printf, 1, 2)));
55 void packet_send_debug(const char *fmt,...) __attribute__((format(printf, 1, 2)));
57 void packet_write_poll(void);
58 void packet_write_wait(void);
59 int packet_have_data_to_write(void);
60 int packet_not_very_much_data_to_write(void);
62 int packet_connection_is_on_socket(void);
63 int packet_connection_is_ipv4(void);
64 int packet_remaining(void);
65 void packet_send_ignore(int);
66 void packet_inject_ignore(int);
68 void tty_make_modes(int, struct termios *);
69 void tty_parse_modes(int, int *);
71 extern int max_packet_size;
72 int packet_set_maxsize(int);
73 #define packet_get_maxsize() max_packet_size
75 #define packet_integrity_check(payload_len, expected_len, type) \
77 int _p = (payload_len), _e = (expected_len); \
79 log("Packet integrity error (%d != %d) at %s:%d", \
80 _p, _e, __FILE__, __LINE__); \
81 packet_disconnect("Packet integrity error. (%d)", (type)); \
85 #define packet_done() \
87 int _len = packet_remaining(); \
89 log("Packet integrity error (%d bytes remaining) at %s:%d", \
90 _len ,__FILE__, __LINE__); \
91 packet_disconnect("Packet integrity error."); \