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8efc0c15 | 1 | /* |
5260325f | 2 | * Author: Tatu Ylonen <ylo@cs.hut.fi> |
5260325f | 3 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
4 | * All rights reserved | |
5260325f | 5 | * Interface for the packet protocol functions. |
6ae2364d | 6 | * |
bcbf86ec | 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". | |
5260325f | 12 | */ |
8efc0c15 | 13 | |
6c0fa2b1 | 14 | /* RCSID("$OpenBSD: packet.h,v 1.27 2001/12/19 17:16:13 stevesk Exp $"); */ |
8efc0c15 | 15 | |
16 | #ifndef PACKET_H | |
17 | #define PACKET_H | |
18 | ||
19 | #include <openssl/bn.h> | |
20 | ||
255cabd9 | 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); | |
32 | ||
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); | |
6c0fa2b1 | 38 | void packet_put_string(const void *buf, u_int len); |
255cabd9 | 39 | void packet_put_cstring(const char *str); |
6c0fa2b1 | 40 | void packet_put_raw(const void *buf, u_int len); |
255cabd9 | 41 | void packet_send(void); |
42 | ||
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); | |
47 | ||
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); | |
6c0fa2b1 | 52 | void *packet_get_raw(int *length_ptr); |
53 | void *packet_get_string(u_int *length_ptr); | |
255cabd9 | 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))); | |
8efc0c15 | 56 | |
255cabd9 | 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); | |
8efc0c15 | 61 | |
255cabd9 | 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); | |
b4b701be | 66 | void packet_add_padding(u_char); |
8efc0c15 | 67 | |
255cabd9 | 68 | void tty_make_modes(int, struct termios *); |
69 | void tty_parse_modes(int, int *); | |
8efc0c15 | 70 | |
9d6b7add | 71 | extern int max_packet_size; |
255cabd9 | 72 | int packet_set_maxsize(int); |
73 | #define packet_get_maxsize() max_packet_size | |
8efc0c15 | 74 | |
75 | #define packet_integrity_check(payload_len, expected_len, type) \ | |
76 | do { \ | |
255cabd9 | 77 | int _p = (payload_len), _e = (expected_len); \ |
78 | if (_p != _e) { \ | |
79 | log("Packet integrity error (%d != %d) at %s:%d", \ | |
80 | _p, _e, __FILE__, __LINE__); \ | |
81 | packet_disconnect("Packet integrity error. (%d)", (type)); \ | |
82 | } \ | |
8efc0c15 | 83 | } while (0) |
84 | ||
6ae2364d | 85 | #define packet_done() \ |
86 | do { \ | |
87 | int _len = packet_remaining(); \ | |
88 | if (_len > 0) { \ | |
89 | log("Packet integrity error (%d bytes remaining) at %s:%d", \ | |
90 | _len ,__FILE__, __LINE__); \ | |
91 | packet_disconnect("Packet integrity error."); \ | |
92 | } \ | |
93 | } while (0) | |
94 | ||
5260325f | 95 | #endif /* PACKET_H */ |