| Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame] | 1 | /* $OpenBSD: sshconnect.h,v 1.28 2013/10/16 02:31:47 djm Exp $ */ |
| Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 2 | |
| 3 | /* |
| 4 | * Copyright (c) 2000 Markus Friedl. All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions |
| 8 | * are met: |
| 9 | * 1. Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
| 14 | * |
| 15 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 16 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 17 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 18 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 19 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 20 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 21 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 22 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 23 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 24 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 25 | */ |
| 26 | |
| 27 | typedef struct Sensitive Sensitive; |
| 28 | struct Sensitive { |
| 29 | Key **keys; |
| 30 | int nkeys; |
| 31 | int external_keysign; |
| 32 | }; |
| 33 | |
| Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame] | 34 | struct addrinfo; |
| 35 | int ssh_connect(const char *, struct addrinfo *, struct sockaddr_storage *, |
| 36 | u_short, int, int, int *, int, int); |
| Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 37 | void ssh_kill_proxy_command(void); |
| 38 | |
| 39 | void ssh_login(Sensitive *, const char *, struct sockaddr *, u_short, |
| 40 | struct passwd *, int); |
| 41 | |
| 42 | void ssh_exchange_identification(int); |
| 43 | |
| 44 | int verify_host_key(char *, struct sockaddr *, Key *); |
| 45 | |
| 46 | void get_hostfile_hostname_ipaddr(char *, struct sockaddr *, u_short, |
| 47 | char **, char **); |
| 48 | |
| 49 | void ssh_kex(char *, struct sockaddr *); |
| 50 | void ssh_kex2(char *, struct sockaddr *, u_short); |
| 51 | |
| 52 | void ssh_userauth1(const char *, const char *, char *, Sensitive *); |
| 53 | void ssh_userauth2(const char *, const char *, char *, Sensitive *); |
| 54 | |
| 55 | void ssh_put_password(char *); |
| 56 | int ssh_local_cmd(const char *); |
| 57 | |
| 58 | /* |
| 59 | * Macros to raise/lower permissions. |
| 60 | */ |
| 61 | #define PRIV_START do { \ |
| 62 | int save_errno = errno; \ |
| 63 | if (seteuid(original_effective_uid) != 0) \ |
| 64 | fatal("PRIV_START: seteuid: %s", \ |
| 65 | strerror(errno)); \ |
| 66 | errno = save_errno; \ |
| 67 | } while (0) |
| 68 | |
| 69 | #define PRIV_END do { \ |
| 70 | int save_errno = errno; \ |
| 71 | if (seteuid(original_real_uid) != 0) \ |
| 72 | fatal("PRIV_END: seteuid: %s", \ |
| 73 | strerror(errno)); \ |
| 74 | errno = save_errno; \ |
| 75 | } while (0) |