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Annotation of src/usr.bin/ssh/packet.h, Revision 1.28

1.1       deraadt     1: /*
1.5       deraadt     2:  * Author: Tatu Ylonen <ylo@cs.hut.fi>
                      3:  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
                      4:  *                    All rights reserved
                      5:  * Interface for the packet protocol functions.
1.15      markus      6:  *
1.17      deraadt     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".
1.5       deraadt    12:  */
1.1       deraadt    13:
1.28    ! djm        14: /* RCSID("$OpenBSD: packet.h,v 1.27 2001/12/19 17:16:13 stevesk Exp $"); */
1.1       deraadt    15:
                     16: #ifndef PACKET_H
                     17: #define PACKET_H
                     18:
1.13      markus     19: #include <openssl/bn.h>
1.1       deraadt    20:
1.25      markus     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);
1.27      stevesk    38: void     packet_put_string(const void *buf, u_int len);
1.25      markus     39: void     packet_put_cstring(const char *str);
1.27      stevesk    40: void     packet_put_raw(const void *buf, u_int len);
1.25      markus     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);
1.28    ! djm        47: int      packet_read_seqnr(int *payload_len_ptr, u_int32_t *seqnr_p);
        !            48: int      packet_read_poll_seqnr(int *packet_len_ptr, u_int32_t *seqnr_p);
1.25      markus     49:
                     50: u_int   packet_get_char(void);
                     51: u_int   packet_get_int(void);
                     52: void     packet_get_bignum(BIGNUM * value, int *length_ptr);
                     53: void     packet_get_bignum2(BIGNUM * value, int *length_ptr);
1.27      stevesk    54: void   *packet_get_raw(int *length_ptr);
                     55: void   *packet_get_string(u_int *length_ptr);
1.25      markus     56: void     packet_disconnect(const char *fmt,...) __attribute__((format(printf, 1, 2)));
                     57: void     packet_send_debug(const char *fmt,...) __attribute__((format(printf, 1, 2)));
                     58:
                     59: void     packet_write_poll(void);
                     60: void     packet_write_wait(void);
                     61: int      packet_have_data_to_write(void);
                     62: int      packet_not_very_much_data_to_write(void);
                     63:
                     64: int     packet_connection_is_on_socket(void);
                     65: int     packet_connection_is_ipv4(void);
                     66: int     packet_remaining(void);
                     67: void    packet_send_ignore(int);
1.26      markus     68: void    packet_add_padding(u_char);
1.1       deraadt    69:
1.25      markus     70: void    tty_make_modes(int, struct termios *);
                     71: void    tty_parse_modes(int, int *);
1.1       deraadt    72:
1.4       markus     73: extern int max_packet_size;
1.25      markus     74: int      packet_set_maxsize(int);
                     75: #define  packet_get_maxsize() max_packet_size
1.1       deraadt    76:
                     77: #define packet_integrity_check(payload_len, expected_len, type) \
                     78: do { \
1.25      markus     79:        int _p = (payload_len), _e = (expected_len); \
                     80:        if (_p != _e) { \
                     81:                log("Packet integrity error (%d != %d) at %s:%d", \
                     82:                    _p, _e, __FILE__, __LINE__); \
                     83:                packet_disconnect("Packet integrity error. (%d)", (type)); \
                     84:        } \
1.1       deraadt    85: } while (0)
1.8       markus     86:
1.14      markus     87: #define packet_done() \
                     88: do { \
                     89:        int _len = packet_remaining(); \
                     90:        if (_len > 0) { \
                     91:                log("Packet integrity error (%d bytes remaining) at %s:%d", \
                     92:                    _len ,__FILE__, __LINE__); \
                     93:                packet_disconnect("Packet integrity error."); \
                     94:        } \
                     95: } while (0)
1.1       deraadt    96:
1.5       deraadt    97: #endif                         /* PACKET_H */