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/* $Id: platform.c,v 1.5 2010/11/05 01:36:15 dtucker Exp $ */

/*
 * Copyright (c) 2006 Darren Tucker.  All rights reserved.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include "config.h"
#include "platform.h"

#include "openbsd-compat/openbsd-compat.h"

void
platform_pre_listen(void)
{
#ifdef LINUX_OOM_ADJUST
	/* Adjust out-of-memory killer so listening process is not killed */
	oom_adjust_setup();
#endif
}

void
platform_pre_fork(void)
{
#ifdef USE_SOLARIS_PROCESS_CONTRACTS
	solaris_contract_pre_fork();
#endif
}

void
platform_post_fork_parent(pid_t child_pid)
{
#ifdef USE_SOLARIS_PROCESS_CONTRACTS
	solaris_contract_post_fork_parent(child_pid);
#endif
}

void
platform_post_fork_child(void)
{
#ifdef USE_SOLARIS_PROCESS_CONTRACTS
	solaris_contract_post_fork_child();
#endif
#ifdef LINUX_OOM_ADJUST
	oom_adjust_restore();
#endif
}

/*
 * This gets called before switching UIDs, and is called even when sshd is
 * not running as root.
 */
void
platform_setusercontext(struct passwd *pw)
{
#ifdef WITH_SELINUX
	/* Cache selinux status for later use */
	(void)ssh_selinux_enabled();
#endif

#ifdef USE_SOLARIS_PROJECTS
	/* if solaris projects were detected, set the default now */
	if (getuid() == 0 || geteuid() == 0)
		solaris_set_default_project(pw);
#endif
}

/*
 * This gets called after we've established the user's groups, and is only
 * called if sshd is running as root.
 */
void
platform_setusercontext_post_groups(struct passwd *pw)
{
#ifdef WITH_SELINUX
	ssh_selinux_setup_exec_context(pw->pw_name);
#endif
}

char *
platform_krb5_get_principal_name(const char *pw_name)
{
#ifdef USE_AIX_KRB_NAME
	return aix_krb5_get_principal_name(pw_name);
#else
	return NULL;
#endif
}