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07200973 | 1 | /* $OpenBSD: packet.h,v 1.43 2005/07/25 11:59:40 markus Exp $ */ |
93c3b6de | 2 | |
8efc0c15 | 3 | /* |
5260325f | 4 | * Author: Tatu Ylonen <ylo@cs.hut.fi> |
5260325f | 5 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
6 | * All rights reserved | |
5260325f | 7 | * Interface for the packet protocol functions. |
6ae2364d | 8 | * |
bcbf86ec | 9 | * As far as I am concerned, the code I have written for this software |
10 | * can be used freely for any purpose. Any derived versions of this | |
11 | * software must be clearly marked as such, and if the derived work is | |
12 | * incompatible with the protocol description in the RFC file, it must be | |
13 | * called by a name other than "ssh" or "Secure Shell". | |
5260325f | 14 | */ |
8efc0c15 | 15 | |
8efc0c15 | 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); | |
9459414c | 27 | u_int packet_get_encryption_key(u_char *); |
255cabd9 | 28 | void packet_set_protocol_flags(u_int); |
29 | u_int packet_get_protocol_flags(void); | |
30 | void packet_start_compression(int); | |
31 | void packet_set_interactive(int); | |
32 | int packet_is_interactive(void); | |
07200973 | 33 | void packet_set_server(void); |
34 | void packet_set_authenticated(void); | |
255cabd9 | 35 | |
36 | void packet_start(u_char); | |
37 | void packet_put_char(int ch); | |
38 | void packet_put_int(u_int value); | |
39 | void packet_put_bignum(BIGNUM * value); | |
40 | void packet_put_bignum2(BIGNUM * value); | |
6c0fa2b1 | 41 | void packet_put_string(const void *buf, u_int len); |
255cabd9 | 42 | void packet_put_cstring(const char *str); |
6c0fa2b1 | 43 | void packet_put_raw(const void *buf, u_int len); |
255cabd9 | 44 | void packet_send(void); |
45 | ||
54a5250f | 46 | int packet_read(void); |
47 | void packet_read_expect(int type); | |
48 | int packet_read_poll(void); | |
255cabd9 | 49 | void packet_process_incoming(const char *buf, u_int len); |
54a5250f | 50 | int packet_read_seqnr(u_int32_t *seqnr_p); |
51 | int packet_read_poll_seqnr(u_int32_t *seqnr_p); | |
255cabd9 | 52 | |
53 | u_int packet_get_char(void); | |
54 | u_int packet_get_int(void); | |
20b279e6 | 55 | void packet_get_bignum(BIGNUM * value); |
56 | void packet_get_bignum2(BIGNUM * value); | |
2ceb8101 | 57 | void *packet_get_raw(u_int *length_ptr); |
6c0fa2b1 | 58 | void *packet_get_string(u_int *length_ptr); |
255cabd9 | 59 | void packet_disconnect(const char *fmt,...) __attribute__((format(printf, 1, 2))); |
60 | void packet_send_debug(const char *fmt,...) __attribute__((format(printf, 1, 2))); | |
8efc0c15 | 61 | |
e050d348 | 62 | void set_newkeys(int mode); |
63 | int packet_get_keyiv_len(int); | |
64 | void packet_get_keyiv(int, u_char *, u_int); | |
65 | int packet_get_keycontext(int, u_char *); | |
66 | void packet_set_keycontext(int, u_char *); | |
ffd7b36b | 67 | void packet_get_state(int, u_int32_t *, u_int64_t *, u_int32_t *); |
68 | void packet_set_state(int, u_int32_t, u_int64_t, u_int32_t); | |
e050d348 | 69 | int packet_get_ssh1_cipher(void); |
70 | void packet_set_iv(int, u_char *); | |
71 | ||
255cabd9 | 72 | void packet_write_poll(void); |
73 | void packet_write_wait(void); | |
74 | int packet_have_data_to_write(void); | |
75 | int packet_not_very_much_data_to_write(void); | |
8efc0c15 | 76 | |
255cabd9 | 77 | int packet_connection_is_on_socket(void); |
78 | int packet_connection_is_ipv4(void); | |
79 | int packet_remaining(void); | |
80 | void packet_send_ignore(int); | |
b4b701be | 81 | void packet_add_padding(u_char); |
8efc0c15 | 82 | |
255cabd9 | 83 | void tty_make_modes(int, struct termios *); |
84 | void tty_parse_modes(int, int *); | |
8efc0c15 | 85 | |
a27002e5 | 86 | extern u_int max_packet_size; |
f6be21a0 | 87 | int packet_set_maxsize(u_int); |
255cabd9 | 88 | #define packet_get_maxsize() max_packet_size |
8efc0c15 | 89 | |
95500969 | 90 | /* don't allow remaining bytes after the end of the message */ |
91 | #define packet_check_eom() \ | |
6ae2364d | 92 | do { \ |
93 | int _len = packet_remaining(); \ | |
94 | if (_len > 0) { \ | |
bbe88b6d | 95 | logit("Packet integrity error (%d bytes remaining) at %s:%d", \ |
6ae2364d | 96 | _len ,__FILE__, __LINE__); \ |
97 | packet_disconnect("Packet integrity error."); \ | |
98 | } \ | |
99 | } while (0) | |
100 | ||
ffd7b36b | 101 | int packet_need_rekeying(void); |
102 | void packet_set_rekey_limit(u_int32_t); | |
103 | ||
5260325f | 104 | #endif /* PACKET_H */ |