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-rw-r--r--crypto/openssh/auth-rh-rsa.c100
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diff --git a/crypto/openssh/auth-rh-rsa.c b/crypto/openssh/auth-rh-rsa.c
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--- a/crypto/openssh/auth-rh-rsa.c
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-/* $OpenBSD: auth-rh-rsa.c,v 1.42 2006/08/03 03:34:41 deraadt Exp $ */
-/*
- * Author: Tatu Ylonen <ylo@cs.hut.fi>
- * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
- * All rights reserved
- * Rhosts or /etc/hosts.equiv authentication combined with RSA host
- * authentication.
- *
- * As far as I am concerned, the code I have written for this software
- * can be used freely for any purpose. Any derived versions of this
- * software must be clearly marked as such, and if the derived work is
- * incompatible with the protocol description in the RFC file, it must be
- * called by a name other than "ssh" or "Secure Shell".
- */
-
-#include "includes.h"
-
-#include <sys/types.h>
-
-#include <pwd.h>
-#include <stdarg.h>
-
-#include "packet.h"
-#include "uidswap.h"
-#include "log.h"
-#include "buffer.h"
-#include "servconf.h"
-#include "key.h"
-#include "hostfile.h"
-#include "pathnames.h"
-#include "auth.h"
-#include "canohost.h"
-#ifdef GSSAPI
-#include "ssh-gss.h"
-#endif
-#include "monitor_wrap.h"
-
-/* import */
-extern ServerOptions options;
-
-int
-auth_rhosts_rsa_key_allowed(struct passwd *pw, char *cuser, char *chost,
- Key *client_host_key)
-{
- HostStatus host_status;
-
- /* Check if we would accept it using rhosts authentication. */
- if (!auth_rhosts(pw, cuser))
- return 0;
-
- host_status = check_key_in_hostfiles(pw, client_host_key,
- chost, _PATH_SSH_SYSTEM_HOSTFILE,
- options.ignore_user_known_hosts ? NULL : _PATH_SSH_USER_HOSTFILE);
-
- return (host_status == HOST_OK);
-}
-
-/*
- * Tries to authenticate the user using the .rhosts file and the host using
- * its host key. Returns true if authentication succeeds.
- */
-int
-auth_rhosts_rsa(Authctxt *authctxt, char *cuser, Key *client_host_key)
-{
- char *chost;
- struct passwd *pw = authctxt->pw;
-
- debug("Trying rhosts with RSA host authentication for client user %.100s",
- cuser);
-
- if (!authctxt->valid || client_host_key == NULL ||
- client_host_key->rsa == NULL)
- return 0;
-
- chost = (char *)get_canonical_hostname(options.use_dns);
- debug("Rhosts RSA authentication: canonical host %.900s", chost);
-
- if (!PRIVSEP(auth_rhosts_rsa_key_allowed(pw, cuser, chost, client_host_key))) {
- debug("Rhosts with RSA host authentication denied: unknown or invalid host key");
- packet_send_debug("Your host key cannot be verified: unknown or invalid host key.");
- return 0;
- }
- /* A matching host key was found and is known. */
-
- /* Perform the challenge-response dialog with the client for the host key. */
- if (!auth_rsa_challenge_dialog(client_host_key)) {
- logit("Client on %.800s failed to respond correctly to host authentication.",
- chost);
- return 0;
- }
- /*
- * We have authenticated the user using .rhosts or /etc/hosts.equiv,
- * and the host using RSA. We accept the authentication.
- */
-
- verbose("Rhosts with RSA host authentication accepted for %.100s, %.100s on %.700s.",
- pw->pw_name, cuser, chost);
- packet_send_debug("Rhosts with RSA host authentication accepted.");
- return 1;
-}
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