*
* Connection Manager
*
- * Copyright (C) 2007-2008 Intel Corporation. All rights reserved.
+ * Copyright (C) 2007-2012 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 <errno.h>
+#include <unistd.h>
+#include <limits.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/inotify.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <net/if.h>
+#include <stdio.h>
+
+#include <glib.h>
+#include <glib/gprintf.h>
+
+#define CONNMAN_API_SUBJECT_TO_CHANGE
#include <connman/plugin.h>
+#include <connman/utsname.h>
+#include <connman/log.h>
+#include <connman/inet.h>
+
+static in_addr_t loopback_address;
+static in_addr_t loopback_netmask;
+
+static char system_hostname[HOST_NAME_MAX + 1];
+
+#if defined TIZEN_EXT
+static void _create_hostname(void)
+{
+ FILE *fp = NULL;
+#define WIFI_MAC "/opt/etc/.mac.info"
+
+ memset(system_hostname, 0, sizeof(system_hostname));
+
+ char* rv = 0;
+ gchar* dev_id = "TIZEN";
+ char wifi_mac[HOST_NAME_MAX + 1];
+
+ fp = fopen(WIFI_MAC, "r");
+ if(!fp){
+ connman_error("Failed to get current hostname");
+ strncpy(system_hostname, dev_id, strlen(dev_id));
+ return;
+ }
+
+ rv = fgets(wifi_mac, HOST_NAME_MAX, fp);
+ if(!rv){
+ connman_error("Failed to get current hostname");
+ strncpy(system_hostname, dev_id, strlen(dev_id));
+ fclose(fp);
+ return;
+ }
+
+ dev_id = g_base64_encode((const guchar *)wifi_mac, strlen(wifi_mac));
+ g_sprintf(system_hostname, "TIZEN-%s", dev_id);
+ g_free(dev_id);
+ fclose(fp);
+}
+#else
+static void create_hostname(void)
+{
+ const char *name = "localhost";
+
+ if (sethostname(name, strlen(name)) < 0)
+ connman_error("Failed to set hostname to %s", name);
+
+ strncpy(system_hostname, name, HOST_NAME_MAX);
+}
+
+#endif
+
+static int setup_hostname(void)
+{
+ char name[HOST_NAME_MAX + 1];
+
+ memset(system_hostname, 0, sizeof(system_hostname));
+
+ if (gethostname(system_hostname, HOST_NAME_MAX) < 0) {
+ connman_error("Failed to get current hostname");
+ return -EIO;
+ }
+
+#if defined TIZEN_EXT
+ if (strlen(system_hostname) > 0 &&
+ strcmp(system_hostname, "(none)") != 0 &&
+ strcmp(system_hostname, "localhost") != 0)
+ connman_info("System hostname is %s", system_hostname);
+ else
+ _create_hostname();
+#else
+ if (strlen(system_hostname) > 0 &&
+ strcmp(system_hostname, "(none)") != 0)
+ connman_info("System hostname is %s", system_hostname);
+ else
+ create_hostname();
+#endif
+
+ memset(name, 0, sizeof(name));
+
+ if (getdomainname(name, HOST_NAME_MAX) < 0) {
+ connman_error("Failed to get current domainname");
+ return -EIO;
+ }
+
+ if (strlen(name) > 0 && strcmp(name, "(none)") != 0)
+ connman_info("System domainname is %s", name);
+
+ return 0;
+}
+
+static bool valid_loopback(int sk, struct ifreq *ifr)
+{
+ struct sockaddr_in *addr;
+ int err;
+ char buf[INET_ADDRSTRLEN];
+
+ /* It is possible to end up in situations in which the
+ * loopback interface is up but has no valid address. In that
+ * case, we expect EADDRNOTAVAIL and should return FALSE.
+ */
+
+ err = ioctl(sk, SIOCGIFADDR, ifr);
+ if (err < 0) {
+ err = -errno;
+ connman_error("Getting address failed (%s)", strerror(-err));
+ return err != -EADDRNOTAVAIL ? TRUE : FALSE;
+ }
+
+ addr = (struct sockaddr_in *) &ifr->ifr_addr;
+ if (addr->sin_addr.s_addr != loopback_address) {
+ connman_warn("Invalid loopback address %s",
+ inet_ntop(AF_INET, &addr->sin_addr, buf, sizeof(buf)));
+ return false;
+ }
+
+ err = ioctl(sk, SIOCGIFNETMASK, ifr);
+ if (err < 0) {
+ err = -errno;
+ connman_error("Getting netmask failed (%s)", strerror(-err));
+ return true;
+ }
+
+ addr = (struct sockaddr_in *) &ifr->ifr_netmask;
+ if (addr->sin_addr.s_addr != loopback_netmask) {
+ connman_warn("Invalid loopback netmask %s",
+ inet_ntop(AF_INET, &addr->sin_addr, buf, sizeof(buf)));
+ return false;
+ }
+
+ return true;
+}
+
+static int setup_loopback(void)
+{
+ struct ifreq ifr;
+ struct sockaddr_in addr;
+ int sk, err;
+
+ sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
+ if (sk < 0)
+ return -errno;
+
+ memset(&ifr, 0, sizeof(ifr));
+ strcpy(ifr.ifr_name, "lo");
+
+ if (ioctl(sk, SIOCGIFFLAGS, &ifr) < 0) {
+ err = -errno;
+ goto done;
+ }
+
+ if (ifr.ifr_flags & IFF_UP) {
+ connman_info("Checking loopback interface settings");
+ if (valid_loopback(sk, &ifr)) {
+ err = -EALREADY;
+ goto done;
+ }
+
+ connman_warn("Correcting wrong loopback settings");
+ }
+
+ memset(&addr, 0, sizeof(addr));
+ addr.sin_family = AF_INET;
+ addr.sin_addr.s_addr = loopback_address;
+ memcpy(&ifr.ifr_addr, &addr, sizeof(ifr.ifr_addr));
+
+ err = ioctl(sk, SIOCSIFADDR, &ifr);
+ if (err < 0) {
+ err = -errno;
+ connman_error("Setting address failed (%s)", strerror(-err));
+ goto done;
+ }
+
+ memset(&addr, 0, sizeof(addr));
+ addr.sin_family = AF_INET;
+ addr.sin_addr.s_addr = loopback_netmask;
+ memcpy(&ifr.ifr_netmask, &addr, sizeof(ifr.ifr_netmask));
+
+ err = ioctl(sk, SIOCSIFNETMASK, &ifr);
+ if (err < 0) {
+ err = -errno;
+ connman_error("Setting netmask failed (%s)", strerror(-err));
+ goto done;
+ }
+
+ if (ioctl(sk, SIOCGIFFLAGS, &ifr) < 0) {
+ err = -errno;
+ goto done;
+ }
+
+ ifr.ifr_flags |= IFF_UP;
+
+ if (ioctl(sk, SIOCSIFFLAGS, &ifr) < 0) {
+ err = -errno;
+ connman_error("Activating loopback interface failed (%s)",
+ strerror(-err));
+ goto done;
+ }
+
+done:
+ close(sk);
+
+ return err;
+}
+
+static const char *loopback_get_hostname(void)
+{
+ return system_hostname;
+}
+
+static int loopback_set_hostname(const char *hostname)
+{
+ const char *ptr;
+ int err, len;
+
+ if (g_strcmp0(hostname, "<hostname>") == 0)
+ return 0;
+
+ len = strlen(hostname);
+
+ if (!connman_inet_check_hostname(hostname, len))
+ return -EINVAL;
+
+ if ((ptr = strstr(hostname, ".")))
+ len = ptr - hostname;
+
+ if (sethostname(hostname, len) < 0) {
+ err = -errno;
+ connman_error("Failed to set hostname to %s", hostname);
+ return err;
+ }
+
+ connman_info("Setting hostname to %s", hostname);
+
+ return 0;
+}
+
+static int loopback_set_domainname(const char *domainname)
+{
+ int err, len;
+
+ len = strlen(domainname);
+
+ if (!connman_inet_check_hostname(domainname, len))
+ return -EINVAL;
+
+ if (setdomainname(domainname, len) < 0) {
+ err = -errno;
+ connman_error("Failed to set domainname to %s", domainname);
+ return err;
+ }
+
+ connman_info("Setting domainname to %s", domainname);
+
+ return 0;
+}
+
+static struct connman_utsname_driver loopback_driver = {
+ .name = "loopback",
+ .get_hostname = loopback_get_hostname,
+ .set_hostname = loopback_set_hostname,
+ .set_domainname = loopback_set_domainname,
+};
static int loopback_init(void)
{
+ loopback_address = inet_addr("127.0.0.1");
+ loopback_netmask = inet_addr("255.0.0.0");
+
+ setup_loopback();
+
+ setup_hostname();
+
+ connman_utsname_driver_register(&loopback_driver);
+
return 0;
}
static void loopback_exit(void)
{
+ connman_utsname_driver_unregister(&loopback_driver);
}
-CONNMAN_PLUGIN_DEFINE("loopback", "Loopback device plugin", VERSION,
- loopback_init, loopback_exit)
+CONNMAN_PLUGIN_DEFINE(loopback, "Loopback device plugin", VERSION,
+ CONNMAN_PLUGIN_PRIORITY_HIGH, loopback_init, loopback_exit)
projects / platform / upstream / connman.git / blobdiff