1 /* $NetBSD: sshconnect.h,v 1.3 2009/12/27 01:40:47 christos Exp $ */ 2 /* $OpenBSD: sshconnect.h,v 1.25 2009/05/27 06:38:16 andreas 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 typedef struct Sensitive Sensitive; 29 struct Sensitive { 30 Key **keys; 31 int nkeys; 32 int external_keysign; 33 }; 34 35 int 36 ssh_connect(const char *, struct sockaddr_storage *, u_short, int, int, 37 int *, int, int, const char *); 38 39 void 40 ssh_login(Sensitive *, const char *, struct sockaddr *, struct passwd *, int); 41 42 void ssh_exchange_identification(int); 43 44 int verify_host_key(char *, struct sockaddr *, Key *); 45 46 void ssh_kex(char *, struct sockaddr *); 47 void ssh_kex2(char *, struct sockaddr *); 48 49 void ssh_userauth1(const char *, const char *, char *, Sensitive *); 50 void ssh_userauth2(const char *, const char *, char *, Sensitive *); 51 52 void ssh_put_password(char *); 53 int ssh_local_cmd(const char *); 54 55 /* 56 * Macros to raise/lower permissions. 57 */ 58 #define PRIV_START do { \ 59 int save_errno = errno; \ 60 if (seteuid(original_effective_uid) != 0) \ 61 fatal("PRIV_START: seteuid: %s", \ 62 strerror(errno)); \ 63 errno = save_errno; \ 64 } while (0) 65 66 #define PRIV_END do { \ 67 int save_errno = errno; \ 68 if (seteuid(original_real_uid) != 0) \ 69 fatal("PRIV_END: seteuid: %s", \ 70 strerror(errno)); \ 71 errno = save_errno; \ 72 } while (0) 73