Remove sshd.

This may require changes to other code, such as fastbootd, which relies on this
service.  sshd is not currently, used, however, so this change will force any
such code to be changed.

Bug: 11594902
Change-Id: I07e52008290dab5825be2ad062cbe730fa7dff71

1 files changed, 0 insertions, 260 deletions

diff --git a/ssh-keysign.c b/ssh-keysign.c
deleted file mode 100644
index 1deb7e14..00000000
--- a/ssh-keysign.c
+++ /dev/null
@@ -1,260 +0,0 @@
-/* $OpenBSD: ssh-keysign.c,v 1.36 2011/02/16 00:31:14 djm Exp $ */
-/*
- * Copyright (c) 2002 Markus Friedl.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "includes.h"
-
-#include <fcntl.h>
-#ifdef HAVE_PATHS_H
-#include <paths.h>
-#endif
-#include <pwd.h>
-#include <stdarg.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include <openssl/evp.h>
-#include <openssl/rand.h>
-#include <openssl/rsa.h>
-
-#include "xmalloc.h"
-#include "log.h"
-#include "key.h"
-#include "ssh.h"
-#include "ssh2.h"
-#include "misc.h"
-#include "buffer.h"
-#include "authfile.h"
-#include "msg.h"
-#include "canohost.h"
-#include "pathnames.h"
-#include "readconf.h"
-#include "uidswap.h"
-
-/* XXX readconf.c needs these */
-uid_t original_real_uid;
-
-extern char *__progname;
-
-static int
-valid_request(struct passwd *pw, char *host, Key **ret, u_char *data,
-    u_int datalen)
-{
-	Buffer b;
-	Key *key = NULL;
-	u_char *pkblob;
-	u_int blen, len;
-	char *pkalg, *p;
-	int pktype, fail;
-
-	fail = 0;
-
-	buffer_init(&b);
-	buffer_append(&b, data, datalen);
-
-	/* session id, currently limited to SHA1 (20 bytes) or SHA256 (32) */
-	p = buffer_get_string(&b, &len);
-	if (len != 20 && len != 32)
-		fail++;
-	xfree(p);
-
-	if (buffer_get_char(&b) != SSH2_MSG_USERAUTH_REQUEST)
-		fail++;
-
-	/* server user */
-	buffer_skip_string(&b);
-
-	/* service */
-	p = buffer_get_string(&b, NULL);
-	if (strcmp("ssh-connection", p) != 0)
-		fail++;
-	xfree(p);
-
-	/* method */
-	p = buffer_get_string(&b, NULL);
-	if (strcmp("hostbased", p) != 0)
-		fail++;
-	xfree(p);
-
-	/* pubkey */
-	pkalg = buffer_get_string(&b, NULL);
-	pkblob = buffer_get_string(&b, &blen);
-
-	pktype = key_type_from_name(pkalg);
-	if (pktype == KEY_UNSPEC)
-		fail++;
-	else if ((key = key_from_blob(pkblob, blen)) == NULL)
-		fail++;
-	else if (key->type != pktype)
-		fail++;
-	xfree(pkalg);
-	xfree(pkblob);
-
-	/* client host name, handle trailing dot */
-	p = buffer_get_string(&b, &len);
-	debug2("valid_request: check expect chost %s got %s", host, p);
-	if (strlen(host) != len - 1)
-		fail++;
-	else if (p[len - 1] != '.')
-		fail++;
-	else if (strncasecmp(host, p, len - 1) != 0)
-		fail++;
-	xfree(p);
-
-	/* local user */
-	p = buffer_get_string(&b, NULL);
-
-	if (strcmp(pw->pw_name, p) != 0)
-		fail++;
-	xfree(p);
-
-	/* end of message */
-	if (buffer_len(&b) != 0)
-		fail++;
-	buffer_free(&b);
-
-	debug3("valid_request: fail %d", fail);
-
-	if (fail && key != NULL)
-		key_free(key);
-	else
-		*ret = key;
-
-	return (fail ? -1 : 0);
-}
-
-int
-main(int argc, char **argv)
-{
-	Buffer b;
-	Options options;
-#define NUM_KEYTYPES 3
-	Key *keys[NUM_KEYTYPES], *key = NULL;
-	struct passwd *pw;
-	int key_fd[NUM_KEYTYPES], i, found, version = 2, fd;
-	u_char *signature, *data;
-	char *host;
-	u_int slen, dlen;
-	u_int32_t rnd[256];
-
-	/* Ensure that stdin and stdout are connected */
-	if ((fd = open(_PATH_DEVNULL, O_RDWR)) < 2)
-		exit(1);
-	/* Leave /dev/null fd iff it is attached to stderr */
-	if (fd > 2)
-		close(fd);
-
-	i = 0;
-	key_fd[i++] = open(_PATH_HOST_DSA_KEY_FILE, O_RDONLY);
-	key_fd[i++] = open(_PATH_HOST_ECDSA_KEY_FILE, O_RDONLY);
-	key_fd[i++] = open(_PATH_HOST_RSA_KEY_FILE, O_RDONLY);
-
-	original_real_uid = getuid();	/* XXX readconf.c needs this */
-	if ((pw = getpwuid(original_real_uid)) == NULL)
-		fatal("getpwuid failed");
-	pw = pwcopy(pw);
-
-	permanently_set_uid(pw);
-
-	seed_rng();
-	arc4random_stir();
-
-#ifdef DEBUG_SSH_KEYSIGN
-	log_init("ssh-keysign", SYSLOG_LEVEL_DEBUG3, SYSLOG_FACILITY_AUTH, 0);
-#endif
-
-	/* verify that ssh-keysign is enabled by the admin */
-	initialize_options(&options);
-	(void)read_config_file(_PATH_HOST_CONFIG_FILE, "", &options, 0);
-	fill_default_options(&options);
-	if (options.enable_ssh_keysign != 1)
-		fatal("ssh-keysign not enabled in %s",
-		    _PATH_HOST_CONFIG_FILE);
-
-	for (i = found = 0; i < NUM_KEYTYPES; i++) {
-		if (key_fd[i] != -1)
-			found = 1;
-	}
-	if (found == 0)
-		fatal("could not open any host key");
-
-	OpenSSL_add_all_algorithms();
-	for (i = 0; i < 256; i++)
-		rnd[i] = arc4random();
-	RAND_seed(rnd, sizeof(rnd));
-
-	found = 0;
-	for (i = 0; i < NUM_KEYTYPES; i++) {
-		keys[i] = NULL;
-		if (key_fd[i] == -1)
-			continue;
-		keys[i] = key_load_private_pem(key_fd[i], KEY_UNSPEC,
-		    NULL, NULL);
-		close(key_fd[i]);
-		if (keys[i] != NULL)
-			found = 1;
-	}
-	if (!found)
-		fatal("no hostkey found");
-
-	buffer_init(&b);
-	if (ssh_msg_recv(STDIN_FILENO, &b) < 0)
-		fatal("ssh_msg_recv failed");
-	if (buffer_get_char(&b) != version)
-		fatal("bad version");
-	fd = buffer_get_int(&b);
-	if ((fd == STDIN_FILENO) || (fd == STDOUT_FILENO))
-		fatal("bad fd");
-	if ((host = get_local_name(fd)) == NULL)
-		fatal("cannot get local name for fd");
-
-	data = buffer_get_string(&b, &dlen);
-	if (valid_request(pw, host, &key, data, dlen) < 0)
-		fatal("not a valid request");
-	xfree(host);
-
-	found = 0;
-	for (i = 0; i < NUM_KEYTYPES; i++) {
-		if (keys[i] != NULL &&
-		    key_equal_public(key, keys[i])) {
-			found = 1;
-			break;
-		}
-	}
-	if (!found)
-		fatal("no matching hostkey found");
-
-	if (key_sign(keys[i], &signature, &slen, data, dlen) != 0)
-		fatal("key_sign failed");
-	xfree(data);
-
-	/* send reply */
-	buffer_clear(&b);
-	buffer_put_string(&b, signature, slen);
-	if (ssh_msg_send(STDOUT_FILENO, version, &b) == -1)
-		fatal("ssh_msg_send failed");
-
-	return (0);
-}