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authorRene Mayrhofer <rene@mayrhofer.eu.org>2010-08-09 09:43:35 +0000
committerRene Mayrhofer <rene@mayrhofer.eu.org>2010-08-09 09:43:35 +0000
commit9e7fb8577802de2abf191d783be5b6b953c22271 (patch)
treee6818532d3a85a8a840652f6dfc0d58d42c89a69 /src/libcharon/plugins/resolve/resolve_handler.c
parent20e652eab94f898365fdde046ed11a2dda2f165e (diff)
downloadvyos-strongswan-9e7fb8577802de2abf191d783be5b6b953c22271.tar.gz
vyos-strongswan-9e7fb8577802de2abf191d783be5b6b953c22271.zip
New upstream release.
Diffstat (limited to 'src/libcharon/plugins/resolve/resolve_handler.c')
-rw-r--r--src/libcharon/plugins/resolve/resolve_handler.c251
1 files changed, 0 insertions, 251 deletions
diff --git a/src/libcharon/plugins/resolve/resolve_handler.c b/src/libcharon/plugins/resolve/resolve_handler.c
deleted file mode 100644
index 714c751a6..000000000
--- a/src/libcharon/plugins/resolve/resolve_handler.c
+++ /dev/null
@@ -1,251 +0,0 @@
-/*
- * 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 <unistd.h>
-
-#include <daemon.h>
-#include <threading/mutex.h>
-
-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;
-
- /**
- * Mutex to access file exclusively
- */
- mutex_t *mutex;
-};
-
-/**
- * Implementation of attribute_handler_t.handle
- */
-static bool handle(private_resolve_handler_t *this, identification_t *server,
- configuration_attribute_type_t type, chunk_t data)
-{
- FILE *in, *out;
- char buf[1024];
- host_t *addr;
- size_t len;
- bool handled = FALSE;
-
- 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);
-
- 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);
- }
- this->mutex->unlock(this->mutex);
- addr->destroy(addr);
-
- if (!handled)
- {
- DBG1(DBG_IKE, "adding DNS server failed", this->file);
- }
- return handled;
-}
-
-/**
- * Implementation of attribute_handler_t.release
- */
-static void release(private_resolve_handler_t *this, identification_t *server,
- configuration_attribute_type_t type, chunk_t data)
-{
- FILE *in, *out;
- char line[1024], matcher[512], *pos;
- 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;
- }
-
- this->mutex->lock(this->mutex);
-
- 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)
- {
- addr = host_create_from_chunk(family, data, 0);
- snprintf(matcher, sizeof(matcher),
- "nameserver %H # by strongSwan, from %Y\n",
- addr, server);
-
- /* copy all, but matching line */
- while ((pos = fgets(line, sizeof(line), in)))
- {
- if (strneq(line, matcher, strlen(matcher)))
- {
- DBG1(DBG_IKE, "removing DNS server %H from %s",
- addr, this->file);
- }
- else
- {
- fputs(line, out);
- }
- }
- addr->destroy(addr);
- fclose(out);
- }
- fclose(in);
- }
-
- this->mutex->unlock(this->mutex);
-}
-
-/**
- * Attribute enumerator implementation
- */
-typedef struct {
- /** implements enumerator_t interface */
- enumerator_t public;
- /** virtual IP we are requesting */
- host_t *vip;
-} attribute_enumerator_t;
-
-/**
- * Implementation of create_attribute_enumerator().enumerate()
- */
-static bool attribute_enumerate(attribute_enumerator_t *this,
- configuration_attribute_type_t *type, chunk_t *data)
-{
- switch (this->vip->get_family(this->vip))
- {
- case AF_INET:
- *type = INTERNAL_IP4_DNS;
- break;
- case AF_INET6:
- *type = INTERNAL_IP6_DNS;
- break;
- default:
- return FALSE;
- }
- *data = chunk_empty;
- /* enumerate only once */
- this->public.enumerate = (void*)return_false;
- return TRUE;
-}
-
-/**
- * Implementation of attribute_handler_t.create_attribute_enumerator
- */
-static enumerator_t* create_attribute_enumerator(private_resolve_handler_t *this,
- identification_t *server, host_t *vip)
-{
- if (vip)
- {
- attribute_enumerator_t *enumerator;
-
- enumerator = malloc_thing(attribute_enumerator_t);
- enumerator->public.enumerate = (void*)attribute_enumerate;
- enumerator->public.destroy = (void*)free;
- enumerator->vip = vip;
-
- return &enumerator->public;
- }
- return enumerator_create_empty();
-}
-
-/**
- * Implementation of resolve_handler_t.destroy.
- */
-static void destroy(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 = malloc_thing(private_resolve_handler_t);
-
- this->public.handler.handle = (bool(*)(attribute_handler_t*, identification_t*, configuration_attribute_type_t, chunk_t))handle;
- this->public.handler.release = (void(*)(attribute_handler_t*, identification_t*, configuration_attribute_type_t, chunk_t))release;
- this->public.handler.create_attribute_enumerator = (enumerator_t*(*)(attribute_handler_t*, identification_t *server, host_t *vip))create_attribute_enumerator;
- this->public.destroy = (void(*)(resolve_handler_t*))destroy;
-
- this->mutex = mutex_create(MUTEX_TYPE_DEFAULT);
- this->file = lib->settings->get_str(lib->settings,
- "charon.plugins.resolve.file", RESOLV_CONF);
-
- return &this->public;
-}
-