upstream commit

make internal handling of filename arguments of "none"
 more consistent with ssh. "none" arguments are now replaced with NULL when
 the configuration is finalised.

Simplifies checking later on (just need to test not-NULL rather than
that + strcmp) and cleans up some inconsistencies. ok markus@
This commit is contained in:
djm@openbsd.org 2014-12-22 07:55:51 +00:00 committed by Damien Miller
parent f69b69b862
commit 161cf419f4
4 changed files with 46 additions and 17 deletions

View File

@ -1,4 +1,4 @@
/* $OpenBSD: auth2.c,v 1.133 2014/12/18 23:58:04 djm Exp $ */
/* $OpenBSD: auth2.c,v 1.134 2014/12/22 07:55:51 djm Exp $ */
/*
* Copyright (c) 2000 Markus Friedl. All rights reserved.
*
@ -151,9 +151,7 @@ userauth_banner(void)
{
char *banner = NULL;
if (options.banner == NULL ||
strcasecmp(options.banner, "none") == 0 ||
(datafellows & SSH_BUG_BANNER) != 0)
if (options.banner == NULL || (datafellows & SSH_BUG_BANNER) != 0)
return;
if ((banner = PRIVSEP(auth2_read_banner())) == NULL)

View File

@ -1,5 +1,5 @@
/* $OpenBSD: servconf.c,v 1.256 2014/12/21 22:27:56 djm Exp $ */
/* $OpenBSD: servconf.c,v 1.257 2014/12/22 07:55:51 djm Exp $ */
/*
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
* All rights reserved
@ -162,9 +162,18 @@ initialize_server_options(ServerOptions *options)
options->fingerprint_hash = -1;
}
/* Returns 1 if a string option is unset or set to "none" or 0 otherwise. */
static int
option_clear_or_none(const char *o)
{
return o == NULL || strcasecmp(o, "none") == 0;
}
void
fill_default_server_options(ServerOptions *options)
{
int i;
/* Portable-specific options */
if (options->use_pam == -1)
options->use_pam = 0;
@ -196,7 +205,7 @@ fill_default_server_options(ServerOptions *options)
if (options->listen_addrs == NULL)
add_listen_addr(options, NULL, 0);
if (options->pid_file == NULL)
options->pid_file = _PATH_SSH_DAEMON_PID_FILE;
options->pid_file = xstrdup(_PATH_SSH_DAEMON_PID_FILE);
if (options->server_key_bits == -1)
options->server_key_bits = 1024;
if (options->login_grace_time == -1)
@ -220,7 +229,7 @@ fill_default_server_options(ServerOptions *options)
if (options->x11_use_localhost == -1)
options->x11_use_localhost = 1;
if (options->xauth_location == NULL)
options->xauth_location = _PATH_XAUTH;
options->xauth_location = xstrdup(_PATH_XAUTH);
if (options->permit_tty == -1)
options->permit_tty = 1;
if (options->permit_user_rc == -1)
@ -321,6 +330,24 @@ fill_default_server_options(ServerOptions *options)
if (use_privsep == -1)
use_privsep = PRIVSEP_NOSANDBOX;
#define CLEAR_ON_NONE(v) \
do { \
if (option_clear_or_none(v)) { \
free(v); \
v = NULL; \
} \
} while(0)
CLEAR_ON_NONE(options->pid_file);
CLEAR_ON_NONE(options->xauth_location);
CLEAR_ON_NONE(options->banner);
CLEAR_ON_NONE(options->trusted_user_ca_keys);
CLEAR_ON_NONE(options->revoked_keys_file);
for (i = 0; i < options->num_host_key_files; i++)
CLEAR_ON_NONE(options->host_key_files[i]);
for (i = 0; i < options->num_host_cert_files; i++)
CLEAR_ON_NONE(options->host_cert_files[i]);
#undef CLEAR_ON_NONE
#ifndef HAVE_MMAP
if (use_privsep && options->compression == 1) {
error("This platform does not support both privilege "
@ -538,6 +565,8 @@ derelativise_path(const char *path)
{
char *expanded, *ret, cwd[MAXPATHLEN];
if (strcasecmp(path, "none") == 0)
return xstrdup("none");
expanded = tilde_expand_filename(path, getuid());
if (*expanded == '/')
return expanded;
@ -1982,7 +2011,8 @@ dump_cfg_string(ServerOpCodes code, const char *val)
{
if (val == NULL)
return;
printf("%s %s\n", lookup_opcode_name(code), val);
printf("%s %s\n", lookup_opcode_name(code),
val == NULL ? "none" : val);
}
static void

View File

@ -1,4 +1,4 @@
/* $OpenBSD: session.c,v 1.274 2014/07/15 15:54:14 millert Exp $ */
/* $OpenBSD: session.c,v 1.275 2014/12/22 07:55:51 djm Exp $ */
/*
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
* All rights reserved
@ -2648,7 +2648,7 @@ session_setup_x11fwd(Session *s)
debug("X11 forwarding disabled in server configuration file.");
return 0;
}
if (!options.xauth_location ||
if (options.xauth_location == NULL ||
(stat(options.xauth_location, &st) == -1)) {
packet_send_debug("No xauth program; cannot forward with spoofing.");
return 0;

15
sshd.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: sshd.c,v 1.429 2014/12/11 08:20:09 djm Exp $ */
/* $OpenBSD: sshd.c,v 1.430 2014/12/22 07:55:51 djm Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@ -1208,7 +1208,8 @@ server_accept_loop(int *sock_in, int *sock_out, int *newsock, int *config_s)
logit("Received signal %d; terminating.",
(int) received_sigterm);
close_listen_socks();
unlink(options.pid_file);
if (options.pid_file != NULL)
unlink(options.pid_file);
exit(received_sigterm == SIGTERM ? 0 : 255);
}
if (key_used && key_do_regen) {
@ -1694,10 +1695,6 @@ main(int ac, char **av)
sizeof(Key *));
sensitive_data.host_pubkeys = xcalloc(options.num_host_key_files,
sizeof(Key *));
for (i = 0; i < options.num_host_key_files; i++) {
sensitive_data.host_keys[i] = NULL;
sensitive_data.host_pubkeys[i] = NULL;
}
if (options.host_key_agent) {
if (strcmp(options.host_key_agent, SSH_AUTHSOCKET_ENV_NAME))
@ -1707,6 +1704,8 @@ main(int ac, char **av)
}
for (i = 0; i < options.num_host_key_files; i++) {
if (options.host_key_files[i] == NULL)
continue;
key = key_load_private(options.host_key_files[i], "", NULL);
pubkey = key_load_public(options.host_key_files[i], NULL);
sensitive_data.host_keys[i] = key;
@ -1765,6 +1764,8 @@ main(int ac, char **av)
sensitive_data.host_certificates[i] = NULL;
for (i = 0; i < options.num_host_cert_files; i++) {
if (options.host_cert_files[i] == NULL)
continue;
key = key_load_public(options.host_cert_files[i], NULL);
if (key == NULL) {
error("Could not load host certificate: %s",
@ -1932,7 +1933,7 @@ main(int ac, char **av)
* Write out the pid file after the sigterm handler
* is setup and the listen sockets are bound
*/
if (!debug_flag) {
if (options.pid_file != NULL && !debug_flag) {
FILE *f = fopen(options.pid_file, "w");
if (f == NULL) {