1 /* $NetBSD: sshconnect.h,v 1.19 2025/04/09 15:49:33 christos Exp $ */ 2 /* $OpenBSD: sshconnect.h,v 1.49 2025/03/01 06:11:26 dtucker Exp $ */ 3 4 /* 5 * Copyright (c) 2000 Markus Friedl. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 struct sshkey; 29 30 typedef struct Sensitive Sensitive; 31 struct Sensitive { 32 struct sshkey **keys; 33 int nkeys; 34 }; 35 36 struct ssh_conn_info { 37 char *conn_hash_hex; 38 char *shorthost; 39 char *uidstr; 40 char *keyalias; 41 char *thishost; 42 char *host_arg; 43 char *portstr; 44 char *remhost; 45 char *remuser; 46 char *homedir; 47 char *locuser; 48 char *jmphost; 49 }; 50 51 struct addrinfo; 52 struct ssh; 53 struct hostkeys; 54 struct ssh_conn_info; 55 56 /* default argument for client percent expansions, minus remote user */ 57 #define DEFAULT_CLIENT_PERCENT_EXPAND_ARGS_NOUSER(conn_info) \ 58 "L", conn_info->shorthost, \ 59 "i", conn_info->uidstr, \ 60 "k", conn_info->keyalias, \ 61 "l", conn_info->thishost, \ 62 "n", conn_info->host_arg, \ 63 "p", conn_info->portstr, \ 64 "d", conn_info->homedir, \ 65 "h", conn_info->remhost, \ 66 "u", conn_info->locuser, \ 67 "j", conn_info->jmphost 68 69 /* same plus remote user and hash which has user as a component */ 70 #define DEFAULT_CLIENT_PERCENT_EXPAND_ARGS(conn_info) \ 71 DEFAULT_CLIENT_PERCENT_EXPAND_ARGS_NOUSER(conn_info), \ 72 "C", conn_info->conn_hash_hex, \ 73 "r", conn_info->remuser 74 75 int ssh_connect(struct ssh *, const char *, const char *, 76 struct addrinfo *, struct sockaddr_storage *, u_short, 77 int, int *, int); 78 void ssh_kill_proxy_command(void); 79 80 void ssh_login(struct ssh *, Sensitive *, const char *, 81 struct sockaddr *, u_short, struct passwd *, int, 82 const struct ssh_conn_info *); 83 84 int verify_host_key(char *, struct sockaddr *, struct sshkey *, 85 const struct ssh_conn_info *); 86 87 void get_hostfile_hostname_ipaddr(char *, struct sockaddr *, u_short, 88 char **, char **); 89 90 void ssh_kex2(struct ssh *ssh, char *, struct sockaddr *, u_short, 91 const struct ssh_conn_info *); 92 93 void ssh_userauth2(struct ssh *ssh, const char *, const char *, 94 char *, Sensitive *); 95 96 int ssh_local_cmd(const char *); 97 98 void maybe_add_key_to_agent(const char *, struct sshkey *, 99 const char *, const char *); 100 101 void load_hostkeys_command(struct hostkeys *, const char *, 102 const char *, const struct ssh_conn_info *, 103 const struct sshkey *, const char *); 104 105 int hostkey_accepted_by_hostkeyalgs(const struct sshkey *); 106