mirror of
git://anongit.mindrot.org/openssh.git
synced 2024-12-17 23:54:35 +00:00
6072e4c938
This splits the user authentication code from the sshd-session binary into a separate sshd-auth binary. This will be executed by sshd-session to complete the user authentication phase of the protocol only. Splitting this code into a separate binary ensures that the crucial pre-authentication attack surface has an entirely disjoint address space from the code used for the rest of the connection. It also yields a small runtime memory saving as the authentication code will be unloaded after thhe authentication phase completes. Joint work with markus@ feedback deraadt@ Tested in snaps since last week OpenBSD-Commit-ID: 9c3b2087ae08626ec31b4177b023db600e986d9c
110 lines
4.1 KiB
C
110 lines
4.1 KiB
C
/* $OpenBSD: monitor_wrap.h,v 1.51 2024/05/17 06:42:04 jsg Exp $ */
|
|
|
|
/*
|
|
* Copyright 2002 Niels Provos <provos@citi.umich.edu>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef _MM_WRAP_H_
|
|
#define _MM_WRAP_H_
|
|
|
|
enum mm_keytype { MM_NOKEY, MM_HOSTKEY, MM_USERKEY };
|
|
|
|
struct ssh;
|
|
struct monitor;
|
|
struct Authctxt;
|
|
struct sshkey;
|
|
struct sshauthopt;
|
|
struct sshkey_sig_details;
|
|
|
|
void mm_log_handler(LogLevel, int, const char *, void *);
|
|
int mm_is_monitor(void);
|
|
#ifdef WITH_OPENSSL
|
|
DH *mm_choose_dh(int, int, int);
|
|
#endif
|
|
int mm_sshkey_sign(struct ssh *, struct sshkey *, u_char **, size_t *,
|
|
const u_char *, size_t, const char *, const char *,
|
|
const char *, u_int compat);
|
|
void mm_inform_authserv(char *, char *);
|
|
struct passwd *mm_getpwnamallow(struct ssh *, const char *);
|
|
char *mm_auth2_read_banner(void);
|
|
int mm_auth_password(struct ssh *, char *);
|
|
int mm_key_allowed(enum mm_keytype, const char *, const char *, struct sshkey *,
|
|
int, struct sshauthopt **);
|
|
int mm_user_key_allowed(struct ssh *ssh, struct passwd *, struct sshkey *, int,
|
|
struct sshauthopt **);
|
|
int mm_hostbased_key_allowed(struct ssh *, struct passwd *, const char *,
|
|
const char *, struct sshkey *);
|
|
int mm_sshkey_verify(const struct sshkey *, const u_char *, size_t,
|
|
const u_char *, size_t, const char *, u_int, struct sshkey_sig_details **);
|
|
|
|
void mm_decode_activate_server_options(struct ssh *ssh, struct sshbuf *m);
|
|
|
|
#ifdef GSSAPI
|
|
OM_uint32 mm_ssh_gssapi_server_ctx(Gssctxt **, gss_OID);
|
|
OM_uint32 mm_ssh_gssapi_accept_ctx(Gssctxt *,
|
|
gss_buffer_desc *, gss_buffer_desc *, OM_uint32 *);
|
|
int mm_ssh_gssapi_userok(char *user);
|
|
OM_uint32 mm_ssh_gssapi_checkmic(Gssctxt *, gss_buffer_t, gss_buffer_t);
|
|
#endif
|
|
|
|
#ifdef USE_PAM
|
|
void mm_start_pam(struct ssh *ssh);
|
|
u_int mm_do_pam_account(void);
|
|
void *mm_sshpam_init_ctx(struct Authctxt *);
|
|
int mm_sshpam_query(void *, char **, char **, u_int *, char ***, u_int **);
|
|
int mm_sshpam_respond(void *, u_int, char **);
|
|
void mm_sshpam_free_ctx(void *);
|
|
#endif
|
|
|
|
#ifdef SSH_AUDIT_EVENTS
|
|
#include "audit.h"
|
|
void mm_audit_event(struct ssh *, ssh_audit_event_t);
|
|
void mm_audit_run_command(const char *);
|
|
#endif
|
|
|
|
struct Session;
|
|
void mm_terminate(void);
|
|
int mm_pty_allocate(int *, int *, char *, size_t);
|
|
void mm_session_pty_cleanup2(struct Session *);
|
|
|
|
void mm_send_keystate(struct ssh *, struct monitor*);
|
|
|
|
/* state */
|
|
struct include_list;
|
|
void mm_get_state(struct ssh *, struct include_list *, struct sshbuf *,
|
|
struct sshbuf **, uint64_t *, struct sshbuf **, struct sshbuf **,
|
|
u_char **, struct sshbuf **, struct sshbuf **);
|
|
|
|
/* bsdauth */
|
|
int mm_bsdauth_query(void *, char **, char **, u_int *, char ***, u_int **);
|
|
int mm_bsdauth_respond(void *, u_int, char **);
|
|
|
|
/* config / channels glue */
|
|
void server_process_permitopen(struct ssh *);
|
|
void server_process_channel_timeouts(struct ssh *ssh);
|
|
struct connection_info *
|
|
server_get_connection_info(struct ssh *, int, int);
|
|
|
|
#endif /* _MM_WRAP_H_ */
|