Imported Upstream version 5.3.0

1 files changed, 0 insertions, 377 deletions

diff --git a/src/libhydra/plugins/resolve/resolve_handler.c b/src/libhydra/plugins/resolve/resolve_handler.c
deleted file mode 100644
index 069466ab5..000000000
--- a/src/libhydra/plugins/resolve/resolve_handler.c
+++ /dev/null
@@ -1,377 +0,0 @@
-/*
- * Copyright (C) 2012 Tobias Brunner
- * Copyright (C) 2009 Martin Willi
- * Hochschule fuer Technik Rapperswil
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- */
-
-#include "resolve_handler.h"
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-
-#include <hydra.h>
-#include <utils/debug.h>
-#include <threading/mutex.h>
-
-/* path to resolvconf executable */
-#define RESOLVCONF_EXEC "/sbin/resolvconf"
-
-/* default prefix used for resolvconf interfaces (should have high prio) */
-#define RESOLVCONF_PREFIX "lo.inet.ipsec."
-
-typedef struct private_resolve_handler_t private_resolve_handler_t;
-
-/**
- * Private data of an resolve_handler_t object.
- */
-struct private_resolve_handler_t {
-
-	/**
-	 * Public resolve_handler_t interface.
-	 */
-	resolve_handler_t public;
-
-	/**
-	 * resolv.conf file to use
-	 */
-	char *file;
-
-	/**
-	 * use resolvconf instead of writing directly to resolv.conf
-	 */
-	bool use_resolvconf;
-
-	/**
-	 * prefix to be used for interface names sent to resolvconf
-	 */
-	char *iface_prefix;
-
-	/**
-	 * Mutex to access file exclusively
-	 */
-	mutex_t *mutex;
-};
-
-/**
- * Writes the given nameserver to resolv.conf
- */
-static bool write_nameserver(private_resolve_handler_t *this,
-							 identification_t *server, host_t *addr)
-{
-	FILE *in, *out;
-	char buf[1024];
-	size_t len;
-	bool handled = FALSE;
-
-	in = fopen(this->file, "r");
-	/* allows us to stream from in to out */
-	unlink(this->file);
-	out = fopen(this->file, "w");
-	if (out)
-	{
-		fprintf(out, "nameserver %H   # by strongSwan, from %Y\n", addr,
-				server);
-		DBG1(DBG_IKE, "installing DNS server %H to %s", addr, this->file);
-		handled = TRUE;
-
-		/* copy rest of the file */
-		if (in)
-		{
-			while ((len = fread(buf, 1, sizeof(buf), in)))
-			{
-				ignore_result(fwrite(buf, 1, len, out));
-			}
-		}
-		fclose(out);
-	}
-	if (in)
-	{
-		fclose(in);
-	}
-	return handled;
-}
-
-/**
- * Removes the given nameserver from resolv.conf
- */
-static void remove_nameserver(private_resolve_handler_t *this,
-							  identification_t *server, host_t *addr)
-{
-	FILE *in, *out;
-	char line[1024], matcher[512];
-
-	in = fopen(this->file, "r");
-	if (in)
-	{
-		/* allows us to stream from in to out */
-		unlink(this->file);
-		out = fopen(this->file, "w");
-		if (out)
-		{
-			snprintf(matcher, sizeof(matcher),
-					 "nameserver %H   # by strongSwan, from %Y\n",
-					 addr, server);
-
-			/* copy all, but matching line */
-			while (fgets(line, sizeof(line), in))
-			{
-				if (strpfx(line, matcher))
-				{
-					DBG1(DBG_IKE, "removing DNS server %H from %s",
-						 addr, this->file);
-				}
-				else
-				{
-					fputs(line, out);
-				}
-			}
-			fclose(out);
-		}
-		fclose(in);
-	}
-}
-
-/**
- * Add or remove the given nameserver by invoking resolvconf.
- */
-static bool invoke_resolvconf(private_resolve_handler_t *this,
-							  identification_t *server, host_t *addr,
-							  bool install)
-{
-	char cmd[128];
-	bool success = TRUE;
-
-	/* we use the nameserver's IP address as part of the interface name to
-	 * make them unique */
-	if (snprintf(cmd, sizeof(cmd), "%s %s %s%H", RESOLVCONF_EXEC,
-				install ? "-a" : "-d", this->iface_prefix, addr) >= sizeof(cmd))
-	{
-		return FALSE;
-	}
-
-	if (install)
-	{
-		FILE *out;
-
-		out = popen(cmd, "w");
-		if (!out)
-		{
-			return FALSE;
-		}
-		DBG1(DBG_IKE, "installing DNS server %H via resolvconf", addr);
-		fprintf(out, "nameserver %H\n", addr);
-		success = !ferror(out);
-		if (pclose(out))
-		{
-			return FALSE;
-		}
-	}
-	else
-	{
-		ignore_result(system(cmd));
-	}
-	return success;
-}
-
-METHOD(attribute_handler_t, handle, bool,
-	private_resolve_handler_t *this, identification_t *server,
-	configuration_attribute_type_t type, chunk_t data)
-{
-	host_t *addr;
-	bool handled;
-
-	switch (type)
-	{
-		case INTERNAL_IP4_DNS:
-			addr = host_create_from_chunk(AF_INET, data, 0);
-			break;
-		case INTERNAL_IP6_DNS:
-			addr = host_create_from_chunk(AF_INET6, data, 0);
-			break;
-		default:
-			return FALSE;
-	}
-
-	if (!addr || addr->is_anyaddr(addr))
-	{
-		DESTROY_IF(addr);
-		return FALSE;
-	}
-
-	this->mutex->lock(this->mutex);
-	if (this->use_resolvconf)
-	{
-		handled = invoke_resolvconf(this, server, addr, TRUE);
-	}
-	else
-	{
-		handled = write_nameserver(this, server, addr);
-	}
-	this->mutex->unlock(this->mutex);
-	addr->destroy(addr);
-
-	if (!handled)
-	{
-		DBG1(DBG_IKE, "adding DNS server failed");
-	}
-	return handled;
-}
-
-METHOD(attribute_handler_t, release, void,
-	private_resolve_handler_t *this, identification_t *server,
-	configuration_attribute_type_t type, chunk_t data)
-{
-	host_t *addr;
-	int family;
-
-	switch (type)
-	{
-		case INTERNAL_IP4_DNS:
-			family = AF_INET;
-			break;
-		case INTERNAL_IP6_DNS:
-			family = AF_INET6;
-			break;
-		default:
-			return;
-	}
-	addr = host_create_from_chunk(family, data, 0);
-
-	this->mutex->lock(this->mutex);
-	if (this->use_resolvconf)
-	{
-		invoke_resolvconf(this, server, addr, FALSE);
-	}
-	else
-	{
-		remove_nameserver(this, server, addr);
-	}
-	this->mutex->unlock(this->mutex);
-
-	addr->destroy(addr);
-}
-
-/**
- * Attribute enumerator implementation
- */
-typedef struct {
-	/** implements enumerator_t interface */
-	enumerator_t public;
-	/** request IPv4 DNS? */
-	bool v4;
-	/** request IPv6 DNS? */
-	bool v6;
-} attribute_enumerator_t;
-
-static bool attribute_enumerate(attribute_enumerator_t *this,
-								configuration_attribute_type_t *type,
-								chunk_t *data)
-{
-	if (this->v4)
-	{
-		*type = INTERNAL_IP4_DNS;
-		*data = chunk_empty;
-		this->v4 = FALSE;
-		return TRUE;
-	}
-	if (this->v6)
-	{
-		*type = INTERNAL_IP6_DNS;
-		*data = chunk_empty;
-		this->v6 = FALSE;
-		return TRUE;
-	}
-	return FALSE;
-}
-
-/**
- * Check if a list has a host of given family
- */
-static bool has_host_family(linked_list_t *list, int family)
-{
-	enumerator_t *enumerator;
-	host_t *host;
-	bool found = FALSE;
-
-	enumerator = list->create_enumerator(list);
-	while (enumerator->enumerate(enumerator, &host))
-	{
-		if (host->get_family(host) == family)
-		{
-			found = TRUE;
-			break;
-		}
-	}
-	enumerator->destroy(enumerator);
-
-	return found;
-}
-
-METHOD(attribute_handler_t, create_attribute_enumerator, enumerator_t*,
-	private_resolve_handler_t *this, identification_t *server,
-	linked_list_t *vips)
-{
-	attribute_enumerator_t *enumerator;
-
-	INIT(enumerator,
-		.public = {
-			.enumerate = (void*)attribute_enumerate,
-			.destroy = (void*)free,
-		},
-		.v4 = has_host_family(vips, AF_INET),
-		.v6 = has_host_family(vips, AF_INET6),
-	);
-	return &enumerator->public;
-}
-
-METHOD(resolve_handler_t, destroy, void,
-	private_resolve_handler_t *this)
-{
-	this->mutex->destroy(this->mutex);
-	free(this);
-}
-
-/**
- * See header
- */
-resolve_handler_t *resolve_handler_create()
-{
-	private_resolve_handler_t *this;
-	struct stat st;
-
-	INIT(this,
-		.public = {
-			.handler = {
-				.handle = _handle,
-				.release = _release,
-				.create_attribute_enumerator = _create_attribute_enumerator,
-			},
-			.destroy = _destroy,
-		},
-		.mutex = mutex_create(MUTEX_TYPE_DEFAULT),
-		.file = lib->settings->get_str(lib->settings, "%s.plugins.resolve.file",
-									   RESOLV_CONF, lib->ns),
-	);
-
-	if (stat(RESOLVCONF_EXEC, &st) == 0)
-	{
-		this->use_resolvconf = TRUE;
-		this->iface_prefix = lib->settings->get_str(lib->settings,
-								"%s.plugins.resolve.resolvconf.iface_prefix",
-								RESOLVCONF_PREFIX, lib->ns);
-	}
-
-	return &this->public;
-}
-