328 строки
9.3 KiB
C
328 строки
9.3 KiB
C
/*
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* This file is part of the SSH Library
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*
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* Copyright (c) 2003-2009 by Aris Adamantiadis
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*
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* The SSH Library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or (at your
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* option) any later version.
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*
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* The SSH Library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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* License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with the SSH Library; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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* MA 02111-1307, USA.
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*/
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/*
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* priv.h file
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* This include file contains everything you shouldn't deal with in
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* user programs. Consider that anything in this file might change
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* without notice; libssh.h file will keep backward compatibility
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* on binary & source
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*/
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#ifndef _LIBSSH_PRIV_H
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#define _LIBSSH_PRIV_H
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#include "config.h"
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#ifdef _WIN32
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/* Imitate define of inttypes.h */
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# ifndef PRIdS
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# define PRIdS "Id"
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# endif
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# ifdef _MSC_VER
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# include <stdio.h>
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/* On Microsoft compilers define inline to __inline on all others use inline */
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# undef inline
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# define inline __inline
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# undef strdup
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# define strdup _strdup
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# define strcasecmp _stricmp
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# define strncasecmp _strnicmp
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# define strtoull _strtoui64
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# define isblank(ch) ((ch) == ' ' || (ch) == '\t' || (ch) == '\n' || (ch) == '\r')
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# define usleep(X) Sleep(((X)+1000)/1000)
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# undef strtok_r
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# define strtok_r strtok_s
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# if defined(HAVE__SNPRINTF_S)
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# undef snprintf
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# define snprintf(d, n, ...) _snprintf_s((d), (n), _TRUNCATE, __VA_ARGS__)
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# else /* HAVE__SNPRINTF_S */
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# if defined(HAVE__SNPRINTF)
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# undef snprintf
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# define snprintf _snprintf
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# else /* HAVE__SNPRINTF */
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# if !defined(HAVE_SNPRINTF)
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# error "no snprintf compatible function found"
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# endif /* HAVE_SNPRINTF */
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# endif /* HAVE__SNPRINTF */
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# endif /* HAVE__SNPRINTF_S */
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# if defined(HAVE__VSNPRINTF_S)
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# undef vsnprintf
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# define vsnprintf(s, n, f, v) _vsnprintf_s((s), (n), _TRUNCATE, (f), (v))
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# else /* HAVE__VSNPRINTF_S */
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# if defined(HAVE__VSNPRINTF)
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# undef vsnprintf
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# define vsnprintf _vsnprintf
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# else
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# if !defined(HAVE_VSNPRINTF)
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# error "No vsnprintf compatible function found"
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# endif /* HAVE_VSNPRINTF */
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# endif /* HAVE__VSNPRINTF */
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# endif /* HAVE__VSNPRINTF_S */
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# ifndef HAVE_STRNCPY
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# define strncpy(d, s, n) strncpy_s((d), (n), (s), _TRUNCATE)
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# endif
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# endif /* _MSC_VER */
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#else /* _WIN32 */
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#include <unistd.h>
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#define PRIdS "zd"
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#endif /* _WIN32 */
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#include "libssh/libssh.h"
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#include "libssh/callbacks.h"
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#include "libssh/crypto.h"
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/* some constants */
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#define MAX_PACKET_LEN 262144
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#define ERROR_BUFFERLEN 1024
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#define CLIENTBANNER1 "SSH-1.5-libssh-" SSH_STRINGIFY(LIBSSH_VERSION)
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#define CLIENTBANNER2 "SSH-2.0-libssh-" SSH_STRINGIFY(LIBSSH_VERSION)
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#define KBDINT_MAX_PROMPT 256 /* more than openssh's :) */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef HAVE_SYS_TIME_H
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#include <sys/time.h>
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#endif
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typedef struct kex_struct {
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unsigned char cookie[16];
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char **methods;
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} KEX;
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struct error_struct {
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/* error handling */
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int error_code;
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char error_buffer[ERROR_BUFFERLEN];
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};
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/* TODO: remove that include */
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#include "libssh/wrapper.h"
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struct ssh_keys_struct {
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const char *privatekey;
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const char *publickey;
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};
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struct ssh_message_struct;
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struct ssh_poll_handle_struct;
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/* server data */
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struct ssh_bind_struct {
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struct error_struct error;
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ssh_callbacks callbacks; /* Callbacks to user functions */
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/* options */
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char *wanted_methods[10];
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char *banner;
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char *dsakey;
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char *rsakey;
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char *bindaddr;
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socket_t bindfd;
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unsigned int bindport;
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unsigned int log_verbosity;
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int blocking;
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int toaccept;
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};
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SSH_PACKET_CALLBACK(ssh_packet_disconnect_callback);
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SSH_PACKET_CALLBACK(ssh_packet_ignore_callback);
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/* client.c */
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int ssh_send_banner(ssh_session session, int is_server);
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SSH_PACKET_CALLBACK(ssh_packet_dh_reply);
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SSH_PACKET_CALLBACK(ssh_packet_newkeys);
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SSH_PACKET_CALLBACK(ssh_packet_service_accept);
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/* config.c */
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int ssh_config_parse_file(ssh_session session, const char *filename);
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/* errors.c */
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void ssh_set_error(void *error, int code, const char *descr, ...) PRINTF_ATTRIBUTE(3, 4);
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void ssh_set_error_oom(void *);
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void ssh_set_error_invalid(void *, const char *);
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/* in crypt.c */
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uint32_t packet_decrypt_len(ssh_session session,char *crypted);
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int packet_decrypt(ssh_session session, void *packet,unsigned int len);
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unsigned char *packet_encrypt(ssh_session session,void *packet,unsigned int len);
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/* it returns the hmac buffer if exists*/
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int packet_hmac_verify(ssh_session session,ssh_buffer buffer,unsigned char *mac);
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struct ssh_socket_struct;
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int ssh_packet_socket_callback(const void *data, size_t len, void *user);
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void ssh_packet_register_socket_callback(ssh_session session, struct ssh_socket_struct *s);
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void ssh_packet_set_callbacks(ssh_session session, ssh_packet_callbacks callbacks);
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void ssh_packet_set_default_callbacks(ssh_session session);
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void ssh_packet_process(ssh_session session, uint8_t type);
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/* connect.c */
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int ssh_regex_init(void);
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void ssh_regex_finalize(void);
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socket_t ssh_connect_host(ssh_session session, const char *host,const char
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*bind_addr, int port, long timeout, long usec);
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socket_t ssh_connect_host_nonblocking(ssh_session session, const char *host,
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const char *bind_addr, int port);
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void ssh_sock_set_nonblocking(socket_t sock);
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void ssh_sock_set_blocking(socket_t sock);
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/* in kex.c */
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extern const char *ssh_kex_nums[];
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int ssh_send_kex(ssh_session session, int server_kex);
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void ssh_list_kex(ssh_session session, KEX *kex);
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int set_kex(ssh_session session);
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int verify_existing_algo(int algo, const char *name);
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char **space_tokenize(const char *chain);
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int ssh_get_kex1(ssh_session session);
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char *ssh_find_matching(const char *in_d, const char *what_d);
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SSH_PACKET_CALLBACK(channel_rcv_change_window);
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SSH_PACKET_CALLBACK(channel_rcv_eof);
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SSH_PACKET_CALLBACK(channel_rcv_close);
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SSH_PACKET_CALLBACK(channel_rcv_request);
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SSH_PACKET_CALLBACK(channel_rcv_data);
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/* in base64.c */
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ssh_buffer base64_to_bin(const char *source);
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unsigned char *bin_to_base64(const unsigned char *source, int len);
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/* gzip.c */
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int compress_buffer(ssh_session session,ssh_buffer buf);
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int decompress_buffer(ssh_session session,ssh_buffer buf, size_t maxlen);
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/* crc32.c */
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uint32_t ssh_crc32(const char *buf, uint32_t len);
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/* auth1.c */
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int ssh_userauth1_none(ssh_session session, const char *username);
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int ssh_userauth1_offer_pubkey(ssh_session session, const char *username,
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int type, ssh_string pubkey);
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int ssh_userauth1_password(ssh_session session, const char *username,
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const char *password);
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#ifdef WITH_SSH1
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/* channels1.c */
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int channel_open_session1(ssh_channel channel);
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int channel_request_pty_size1(ssh_channel channel, const char *terminal,
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int cols, int rows);
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int channel_change_pty_size1(ssh_channel channel, int cols, int rows);
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int channel_request_shell1(ssh_channel channel);
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int channel_request_exec1(ssh_channel channel, const char *cmd);
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int channel_write1(ssh_channel channel, const void *data, int len);
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#endif
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/* match.c */
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int match_hostname(const char *host, const char *pattern, unsigned int len);
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int message_handle(ssh_session session, void *user, uint8_t type, ssh_buffer packet);
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/* log.c */
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/* misc.c */
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#ifdef _WIN32
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int gettimeofday(struct timeval *__p, void *__t);
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#endif /* _WIN32 */
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#ifndef __FUNCTION__
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#if defined(__SUNPRO_C)
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#define __FUNCTION__ __func__
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#endif
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#endif
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#define _enter_function(sess) \
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do {\
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if((sess)->log_verbosity >= SSH_LOG_FUNCTIONS){ \
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ssh_log((sess),SSH_LOG_FUNCTIONS,"entering function %s line %d in " __FILE__ , __FUNCTION__,__LINE__);\
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(sess)->log_indent++; \
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} \
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} while(0)
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#define _leave_function(sess) \
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do { \
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if((sess)->log_verbosity >= SSH_LOG_FUNCTIONS){ \
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(sess)->log_indent--; \
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ssh_log((sess),SSH_LOG_FUNCTIONS,"leaving function %s line %d in " __FILE__ , __FUNCTION__,__LINE__);\
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}\
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} while(0)
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#ifdef DEBUG_CALLTRACE
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#define enter_function() _enter_function(session)
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#define leave_function() _leave_function(session)
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#else
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#define enter_function() (void)session
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#define leave_function() (void)session
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#endif
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/* options.c */
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int ssh_options_set_algo(ssh_session session, int algo, const char *list);
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int ssh_options_apply(ssh_session session);
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/* server.c */
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SSH_PACKET_CALLBACK(ssh_packet_kexdh_init);
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/** Free memory space */
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#define SAFE_FREE(x) do { if ((x) != NULL) {free(x); x=NULL;} } while(0)
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/** Zero a structure */
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#define ZERO_STRUCT(x) memset((char *)&(x), 0, sizeof(x))
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/** Zero a structure given a pointer to the structure */
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#define ZERO_STRUCTP(x) do { if ((x) != NULL) memset((char *)(x), 0, sizeof(*(x))); } while(0)
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/** Get the size of an array */
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#define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0]))
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/** Overwrite the complete string with 'X' */
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#define BURN_STRING(x) do { if ((x) != NULL) memset((x), 'X', strlen((x))); } while(0)
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#ifdef HAVE_LIBGCRYPT
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/* gcrypt_missing.c */
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int my_gcry_dec2bn(bignum *bn, const char *data);
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char *my_gcry_bn2dec(bignum bn);
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#endif /* !HAVE_LIBGCRYPT */
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#ifdef __cplusplus
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}
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#endif
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#endif /* _LIBSSH_PRIV_H */
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/* vim: set ts=2 sw=2 et cindent: */
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