*
* Connection Manager
*
- * Copyright (C) 2007-2008 Intel Corporation. All rights reserved.
+ * Copyright (C) 2007-2009 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
#include <config.h>
#endif
+#include <stdio.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/stat.h>
+
#include "connman.h"
-static GStaticRWLock resolver_lock = G_STATIC_RW_LOCK_INIT;
+struct entry_data {
+ struct connman_resolver *resolver;
+ char *interface;
+ char *domain;
+ char *server;
+};
+
+static GSList *entry_list = NULL;
static GSList *resolver_list = NULL;
+static void remove_entries(GSList *entries)
+{
+ GSList *list;
+
+ for (list = entries; list; list = list->next) {
+ struct entry_data *entry = list->data;
+ struct connman_resolver *resolver = entry->resolver;
+
+ entry_list = g_slist_remove(entry_list, entry);
+
+ if (resolver->remove)
+ resolver->remove(entry->interface, entry->domain,
+ entry->server);
+
+ g_free(entry->server);
+ g_free(entry->domain);
+ g_free(entry->interface);
+ g_free(entry);
+ }
+
+ g_slist_free(entries);
+}
+
+static gint compare_priority(gconstpointer a, gconstpointer b)
+{
+ const struct connman_resolver *resolver1 = a;
+ const struct connman_resolver *resolver2 = b;
+
+ return resolver2->priority - resolver1->priority;
+}
+
/**
* connman_resolver_register:
* @resolver: resolver module
*/
int connman_resolver_register(struct connman_resolver *resolver)
{
+ GSList *list;
+
DBG("resolver %p name %s", resolver, resolver->name);
- g_static_rw_lock_writer_lock(&resolver_lock);
+ resolver_list = g_slist_insert_sorted(resolver_list, resolver,
+ compare_priority);
+
+ if (resolver->append == NULL)
+ return 0;
- resolver_list = g_slist_append(resolver_list, resolver);
+ for (list = entry_list; list; list = list->next) {
+ struct entry_data *entry = list->data;
- g_static_rw_lock_writer_unlock(&resolver_lock);
+ if (entry->resolver)
+ continue;
+
+ if (resolver->append(entry->interface, entry->domain,
+ entry->server) == 0)
+ entry->resolver = resolver;
+ }
return 0;
}
*/
void connman_resolver_unregister(struct connman_resolver *resolver)
{
- DBG("resolver %p name %s", resolver, resolver->name);
+ GSList *list, *matches = NULL;
- g_static_rw_lock_writer_lock(&resolver_lock);
+ DBG("resolver %p name %s", resolver, resolver->name);
resolver_list = g_slist_remove(resolver_list, resolver);
- g_static_rw_lock_writer_unlock(&resolver_lock);
+ for (list = entry_list; list; list = list->next) {
+ struct entry_data *entry = list->data;
+
+ if (entry->resolver != resolver)
+ continue;
+
+ matches = g_slist_append(matches, entry);
+ }
+
+ remove_entries(matches);
+}
+
+/**
+ * connman_resolver_append:
+ * @interface: network interface
+ * @domain: domain limitation
+ * @server: server address
+ *
+ * Append resolver server address to current list
+ */
+int connman_resolver_append(const char *interface, const char *domain,
+ const char *server)
+{
+ struct entry_data *entry;
+ GSList *list;
+
+ DBG("interface %s domain %s server %s", interface, domain, server);
+
+ if (server == NULL)
+ return -EINVAL;
+
+ entry = g_try_new0(struct entry_data, 1);
+ if (entry == NULL)
+ return -ENOMEM;
+
+ entry->interface = g_strdup(interface);
+ entry->domain = g_strdup(domain);
+ entry->server = g_strdup(server);
+
+ entry_list = g_slist_append(entry_list, entry);
+
+ for (list = resolver_list; list; list = list->next) {
+ struct connman_resolver *resolver = list->data;
+
+ if (resolver->append == NULL)
+ continue;
+
+ if (resolver->append(interface, domain, server) == 0) {
+ entry->resolver = resolver;
+ break;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * connman_resolver_remove_all:
+ * @interface: network interface
+ *
+ * Remove all resolver server address for the specified interface
+ */
+int connman_resolver_remove_all(const char *interface)
+{
+ GSList *list, *matches = NULL;
+
+ DBG("interface %s", interface);
+
+ for (list = entry_list; list; list = list->next) {
+ struct entry_data *entry = list->data;
+
+ if (g_str_equal(entry->interface, interface) == FALSE)
+ continue;
+
+ matches = g_slist_append(matches, entry);
+ }
+
+ remove_entries(matches);
+
+ return 0;
+}
+
+static int selftest_append(const char *interface, const char *domain,
+ const char *server)
+{
+ DBG("server %s", server);
+
+ return 0;
+}
+
+static int selftest_remove(const char *interface, const char *domain,
+ const char *server)
+{
+ DBG("server %s", server);
+
+ return 0;
+}
+
+static struct connman_resolver selftest_resolver = {
+ .name = "selftest",
+ .priority = CONNMAN_RESOLVER_PRIORITY_HIGH + 42,
+ .append = selftest_append,
+ .remove = selftest_remove,
+};
+
+int __connman_resolver_selftest(void)
+{
+ connman_resolver_append("wlan0", "lwn.net", "192.168.0.1");
+
+ connman_resolver_register(&selftest_resolver);
+
+ connman_resolver_append("eth0", "moblin.org", "192.168.42.1");
+ connman_resolver_append("wlan0", "lwn.net", "192.168.0.2");
+
+ connman_resolver_remove_all("wlan0");
+
+ connman_resolver_unregister(&selftest_resolver);
+
+ return 0;
+}
+
+static int resolvfile_append(const char *interface, const char *domain,
+ const char *server)
+{
+ char *cmd;
+ int fd, len, err;
+
+ DBG("interface %s server %s", interface, server);
+
+ fd = open("/etc/resolv.conf", O_RDWR | O_CREAT,
+ S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
+ if (fd < 0)
+ return -errno;
+
+ err = ftruncate(fd, 0);
+
+ cmd = g_strdup_printf("# Generated by Connection Manager\n"
+ "domain localdomain\n"
+ "search localdomain\n"
+ "nameserver %s\n", server);
+
+ len = write(fd, cmd, strlen(cmd));
+
+ g_free(cmd);
+
+ close(fd);
+
+ return 0;
+}
+
+static int resolvfile_remove(const char *interface, const char *domain,
+ const char *server)
+{
+ DBG("interface %s server %s", interface, server);
+
+ return 0;
+}
+
+static struct connman_resolver resolvfile_resolver = {
+ .name = "resolvfile",
+ .priority = CONNMAN_RESOLVER_PRIORITY_LOW,
+ .append = resolvfile_append,
+ .remove = resolvfile_remove,
+};
+
+int __connman_resolver_init(void)
+{
+ DBG("");
+
+ return connman_resolver_register(&resolvfile_resolver);
+}
+
+void __connman_resolver_cleanup(void)
+{
+ DBG("");
+
+ connman_resolver_unregister(&resolvfile_resolver);
}
projects / connman / blobdiff