1 /* $NetBSD: monitor_wrap.h,v 1.24 2024/07/08 22:33:43 christos Exp $ */ 2 /* $OpenBSD: monitor_wrap.h,v 1.51 2024/05/17 06:42:04 jsg Exp $ */ 3 4 /* 5 * Copyright 2002 Niels Provos <provos@citi.umich.edu> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef _MM_WRAP_H_ 30 #define _MM_WRAP_H_ 31 32 enum mm_keytype { MM_NOKEY, MM_HOSTKEY, MM_USERKEY }; 33 34 struct ssh; 35 struct monitor; 36 struct Authctxt; 37 struct sshkey; 38 struct sshauthopt; 39 struct sshkey_sig_details; 40 41 void mm_log_handler(LogLevel, int, const char *, void *); 42 int mm_is_monitor(void); 43 #ifdef WITH_OPENSSL 44 DH *mm_choose_dh(int, int, int); 45 #endif 46 int mm_sshkey_sign(struct ssh *, struct sshkey *, u_char **, size_t *, 47 const u_char *, size_t, const char *, const char *, 48 const char *, u_int compat); 49 void mm_inform_authserv(char *, char *); 50 struct passwd *mm_getpwnamallow(struct ssh *, const char *); 51 char *mm_auth2_read_banner(void); 52 int mm_auth_password(struct ssh *, const char *); 53 int mm_key_allowed(enum mm_keytype, const char *, const char *, struct sshkey *, 54 int, struct sshauthopt **); 55 int mm_user_key_allowed(struct ssh *ssh, struct passwd *, struct sshkey *, int, 56 struct sshauthopt **); 57 int mm_hostbased_key_allowed(struct ssh *, struct passwd *, const char *, 58 const char *, struct sshkey *); 59 int mm_sshkey_verify(const struct sshkey *, const u_char *, size_t, 60 const u_char *, size_t, const char *, u_int, struct sshkey_sig_details **); 61 62 void mm_decode_activate_server_options(struct ssh *ssh, struct sshbuf *m); 63 64 #ifdef GSSAPI 65 OM_uint32 mm_ssh_gssapi_server_ctx(Gssctxt **, gss_OID); 66 OM_uint32 mm_ssh_gssapi_accept_ctx(Gssctxt *, 67 gss_buffer_desc *, gss_buffer_desc *, OM_uint32 *); 68 int mm_ssh_gssapi_userok(char *user); 69 OM_uint32 mm_ssh_gssapi_checkmic(Gssctxt *, gss_buffer_t, gss_buffer_t); 70 #endif 71 72 #ifdef USE_PAM 73 void mm_start_pam(struct ssh *); 74 u_int mm_do_pam_account(void); 75 void *mm_sshpam_init_ctx(struct Authctxt *); 76 int mm_sshpam_query(void *, char **, char **, u_int *, char ***, u_int **); 77 int mm_sshpam_respond(void *, u_int, char **); 78 void mm_sshpam_free_ctx(void *); 79 #endif 80 81 struct Session; 82 void mm_terminate(void); 83 int mm_pty_allocate(int *, int *, char *, size_t); 84 void mm_session_pty_cleanup2(struct Session *); 85 86 void mm_send_keystate(struct ssh *, struct monitor*); 87 88 /* bsdauth */ 89 int mm_bsdauth_query(void *, char **, char **, u_int *, char ***, u_int **); 90 int mm_bsdauth_respond(void *, u_int, char **); 91 92 /* skey */ 93 int mm_skey_query(void *, char **, char **, u_int *, char ***, u_int **); 94 int mm_skey_respond(void *, u_int, char **); 95 96 /* auth_krb */ 97 #ifdef KRB5 98 /* auth and reply are really krb5_data objects, but we don't want to 99 * include all of the krb5 headers here */ 100 int mm_auth_krb5(void *authctxt, void *auth, char **client, void *reply); 101 #endif 102 103 /* config / channels glue */ 104 void server_process_permitopen(struct ssh *); 105 void server_process_channel_timeouts(struct ssh *ssh); 106 struct connection_info * 107 server_get_connection_info(struct ssh *, int, int); 108 109 #endif /* _MM_WRAP_H_ */ 110