colin/NetworkManager
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
5cf1addbdf20779d8b9f39f4f30ab8394c47e9c8
NetworkManager/src/NetworkManagerUtils.c
Dan Williams 5cf1addbdf core: add utility function to get a connection's shared wifi permission 
If the connection is a shared wifi connection, return the appropriate
permission the user must obtain to use the connection.
2011-07-01 15:41:00 -05:00

1007 lines
28 KiB
C
Raw Blame History

/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* NetworkManager -- Network link manager
*
* 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.
*
* 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.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Copyright (C) 2004 - 2011 Red Hat, Inc.
* Copyright (C) 2005 - 2008 Novell, Inc.
*/
#include <glib.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <ctype.h>
#include "NetworkManagerUtils.h"
#include "nm-utils.h"
#include "nm-logging.h"
#include "nm-device.h"
#include "nm-device-wifi.h"
#include "nm-device-ethernet.h"
#include "nm-dbus-manager.h"
#include "nm-dispatcher-action.h"
#include "nm-dbus-glib-types.h"
#include "nm-setting-connection.h"
#include "nm-setting-ip4-config.h"
#include "nm-setting-ip6-config.h"
#include "nm-setting-wireless.h"
#include "nm-setting-wireless-security.h"
#include "nm-manager-auth.h"
#include <netlink/addr.h>
#include <netinet/in.h>
/*
* nm_ethernet_address_is_valid
*
* Compares an Ethernet address against known invalid addresses.
*
*/
gboolean
nm_ethernet_address_is_valid (const struct ether_addr *test_addr)
{
guint8 invalid_addr1[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
guint8 invalid_addr2[ETH_ALEN] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
guint8 invalid_addr3[ETH_ALEN] = {0x44, 0x44, 0x44, 0x44, 0x44, 0x44};
guint8 invalid_addr4[ETH_ALEN] = {0x00, 0x30, 0xb4, 0x00, 0x00, 0x00}; /* prism54 dummy MAC */
g_return_val_if_fail (test_addr != NULL, FALSE);
/* Compare the AP address the card has with invalid ethernet MAC addresses. */
if (!memcmp (test_addr->ether_addr_octet, &invalid_addr1, ETH_ALEN))
return FALSE;
if (!memcmp (test_addr->ether_addr_octet, &invalid_addr2, ETH_ALEN))
return FALSE;
if (!memcmp (test_addr->ether_addr_octet, &invalid_addr3, ETH_ALEN))
return FALSE;
if (!memcmp (test_addr->ether_addr_octet, &invalid_addr4, ETH_ALEN))
return FALSE;
if (test_addr->ether_addr_octet[0] & 1) /* Multicast addresses */
return FALSE;
return TRUE;
}
int
nm_spawn_process (const char *args)
{
gint num_args;
char **argv = NULL;
int status = -1;
GError *error = NULL;
g_return_val_if_fail (args != NULL, -1);
if (!g_shell_parse_argv (args, &num_args, &argv, &error)) {
nm_log_warn (LOGD_CORE, "could not parse arguments for '%s': %s", args, error->message);
g_error_free (error);
return -1;
}
if (!g_spawn_sync ("/", argv, NULL, 0, NULL, NULL, NULL, NULL, &status, &error)) {
nm_log_warn (LOGD_CORE, "could not spawn process '%s': %s", args, error->message);
g_error_free (error);
}
g_strfreev (argv);
return status;
}
/*
* nm_utils_ip4_netmask_to_prefix
*
* Figure out the network prefix from a netmask. Netmask
* MUST be in network byte order.
*
*/
guint32
nm_utils_ip4_netmask_to_prefix (guint32 netmask)
{
guchar *p, *end;
guint32 prefix = 0;
p = (guchar *) &netmask;
end = p + sizeof (guint32);
while ((*p == 0xFF) && p < end) {
prefix += 8;
p++;
}
if (p < end) {
guchar v = *p;
while (v) {
prefix++;
v <<= 1;
}
}
return prefix;
}
/*
* nm_utils_ip4_prefix_to_netmask
*
* Figure out the netmask from a prefix.
*
*/
guint32
nm_utils_ip4_prefix_to_netmask (guint32 prefix)
{
guint32 msk = 0x80000000;
guint32 netmask = 0;
while (prefix > 0) {
netmask |= msk;
msk >>= 1;
prefix--;
}
return (guint32) htonl (netmask);
}
char *
nm_ether_ntop (const struct ether_addr *mac)
{
/* we like leading zeros and all-caps, instead
* of what glibc's ether_ntop() gives us
*/
return g_strdup_printf ("%02X:%02X:%02X:%02X:%02X:%02X",
mac->ether_addr_octet[0], mac->ether_addr_octet[1],
mac->ether_addr_octet[2], mac->ether_addr_octet[3],
mac->ether_addr_octet[4], mac->ether_addr_octet[5]);
}
void
nm_utils_merge_ip4_config (NMIP4Config *ip4_config, NMSettingIP4Config *setting)
{
int i, j;
if (!setting)
return; /* Defaults are just fine */
if (nm_setting_ip4_config_get_ignore_auto_dns (setting)) {
nm_ip4_config_reset_nameservers (ip4_config);
nm_ip4_config_reset_domains (ip4_config);
nm_ip4_config_reset_searches (ip4_config);
}
if (nm_setting_ip4_config_get_ignore_auto_routes (setting))
nm_ip4_config_reset_routes (ip4_config);
for (i = 0; i < nm_setting_ip4_config_get_num_dns (setting); i++) {
guint32 ns;
gboolean found = FALSE;
/* Avoid dupes */
ns = nm_setting_ip4_config_get_dns (setting, i);
for (j = 0; j < nm_ip4_config_get_num_nameservers (ip4_config); j++) {
if (nm_ip4_config_get_nameserver (ip4_config, j) == ns) {
found = TRUE;
break;
}
}
if (!found)
nm_ip4_config_add_nameserver (ip4_config, ns);
}
/* DNS search domains */
for (i = 0; i < nm_setting_ip4_config_get_num_dns_searches (setting); i++) {
const char *search = nm_setting_ip4_config_get_dns_search (setting, i);
gboolean found = FALSE;
/* Avoid dupes */
for (j = 0; j < nm_ip4_config_get_num_searches (ip4_config); j++) {
if (!strcmp (search, nm_ip4_config_get_search (ip4_config, j))) {
found = TRUE;
break;
}
}
if (!found)
nm_ip4_config_add_search (ip4_config, search);
}
/* IPv4 addresses */
for (i = 0; i < nm_setting_ip4_config_get_num_addresses (setting); i++) {
NMIP4Address *setting_addr = nm_setting_ip4_config_get_address (setting, i);
guint32 num;
num = nm_ip4_config_get_num_addresses (ip4_config);
for (j = 0; j < num; j++) {
NMIP4Address *cfg_addr = nm_ip4_config_get_address (ip4_config, j);
/* Dupe, override with user-specified address */
if (nm_ip4_address_get_address (cfg_addr) == nm_ip4_address_get_address (setting_addr)) {
nm_ip4_config_replace_address (ip4_config, j, setting_addr);
break;
}
}
if (j == num)
nm_ip4_config_add_address (ip4_config, setting_addr);
}
/* IPv4 routes */
for (i = 0; i < nm_setting_ip4_config_get_num_routes (setting); i++) {
NMIP4Route *setting_route = nm_setting_ip4_config_get_route (setting, i);
guint32 num;
num = nm_ip4_config_get_num_routes (ip4_config);
for (j = 0; j < num; j++) {
NMIP4Route *cfg_route = nm_ip4_config_get_route (ip4_config, j);
/* Dupe, override with user-specified route */
if ( (nm_ip4_route_get_dest (cfg_route) == nm_ip4_route_get_dest (setting_route))
&& (nm_ip4_route_get_prefix (cfg_route) == nm_ip4_route_get_prefix (setting_route))
&& (nm_ip4_route_get_next_hop (cfg_route) == nm_ip4_route_get_next_hop (setting_route))) {
nm_ip4_config_replace_route (ip4_config, j, setting_route);
break;
}
}
if (j == num)
nm_ip4_config_add_route (ip4_config, setting_route);
}
if (nm_setting_ip4_config_get_never_default (setting))
nm_ip4_config_set_never_default (ip4_config, TRUE);
}
static inline gboolean
ip6_addresses_equal (const struct in6_addr *a, const struct in6_addr *b)
{
return memcmp (a, b, sizeof (struct in6_addr)) == 0;
}
/* This is exactly identical to nm_utils_merge_ip4_config, with s/4/6/,
* except that we can't compare addresses with ==.
*/
void
nm_utils_merge_ip6_config (NMIP6Config *ip6_config, NMSettingIP6Config *setting)
{
int i, j;
if (!setting)
return; /* Defaults are just fine */
if (nm_setting_ip6_config_get_ignore_auto_dns (setting)) {
nm_ip6_config_reset_nameservers (ip6_config);
nm_ip6_config_reset_domains (ip6_config);
nm_ip6_config_reset_searches (ip6_config);
}
if (nm_setting_ip6_config_get_ignore_auto_routes (setting))
nm_ip6_config_reset_routes (ip6_config);
for (i = 0; i < nm_setting_ip6_config_get_num_dns (setting); i++) {
const struct in6_addr *ns;
gboolean found = FALSE;
/* Avoid dupes */
ns = nm_setting_ip6_config_get_dns (setting, i);
for (j = 0; j < nm_ip6_config_get_num_nameservers (ip6_config); j++) {
if (ip6_addresses_equal (nm_ip6_config_get_nameserver (ip6_config, j), ns)) {
found = TRUE;
break;
}
}
if (!found)
nm_ip6_config_add_nameserver (ip6_config, ns);
}
/* DNS search domains */
for (i = 0; i < nm_setting_ip6_config_get_num_dns_searches (setting); i++) {
const char *search = nm_setting_ip6_config_get_dns_search (setting, i);
gboolean found = FALSE;
/* Avoid dupes */
for (j = 0; j < nm_ip6_config_get_num_searches (ip6_config); j++) {
if (!strcmp (search, nm_ip6_config_get_search (ip6_config, j))) {
found = TRUE;
break;
}
}
if (!found)
nm_ip6_config_add_search (ip6_config, search);
}
/* IPv6 addresses */
for (i = 0; i < nm_setting_ip6_config_get_num_addresses (setting); i++) {
NMIP6Address *setting_addr = nm_setting_ip6_config_get_address (setting, i);
guint32 num;
num = nm_ip6_config_get_num_addresses (ip6_config);
for (j = 0; j < num; j++) {
NMIP6Address *cfg_addr = nm_ip6_config_get_address (ip6_config, j);
/* Dupe, override with user-specified address */
if (ip6_addresses_equal (nm_ip6_address_get_address (cfg_addr), nm_ip6_address_get_address (setting_addr))) {
nm_ip6_config_replace_address (ip6_config, j, setting_addr);
break;
}
}
if (j == num)
nm_ip6_config_add_address (ip6_config, setting_addr);
}
/* IPv6 routes */
for (i = 0; i < nm_setting_ip6_config_get_num_routes (setting); i++) {
NMIP6Route *setting_route = nm_setting_ip6_config_get_route (setting, i);
guint32 num;
num = nm_ip6_config_get_num_routes (ip6_config);
for (j = 0; j < num; j++) {
NMIP6Route *cfg_route = nm_ip6_config_get_route (ip6_config, j);
/* Dupe, override with user-specified route */
if ( ip6_addresses_equal (nm_ip6_route_get_dest (cfg_route), nm_ip6_route_get_dest (setting_route))
&& (nm_ip6_route_get_prefix (cfg_route) == nm_ip6_route_get_prefix (setting_route))
&& ip6_addresses_equal (nm_ip6_route_get_next_hop (cfg_route), nm_ip6_route_get_next_hop (setting_route))) {
nm_ip6_config_replace_route (ip6_config, j, setting_route);
break;
}
}
if (j == num)
nm_ip6_config_add_route (ip6_config, setting_route);
}
if (nm_setting_ip6_config_get_never_default (setting))
nm_ip6_config_set_never_default (ip6_config, TRUE);
}
static void
dump_object_to_props (GObject *object, GHashTable *hash)
{
GParamSpec **pspecs;
guint len = 0, i;
pspecs = g_object_class_list_properties (G_OBJECT_GET_CLASS (object), &len);
for (i = 0; i < len; i++) {
value_hash_add_object_property (hash,
pspecs[i]->name,
object,
pspecs[i]->name,
pspecs[i]->value_type);
}
g_free (pspecs);
}
static void
dump_dhcp4_to_props (NMDHCP4Config *config, GHashTable *hash)
{
GSList *options, *iter;
options = nm_dhcp4_config_list_options (config);
for (iter = options; iter; iter = g_slist_next (iter)) {
const char *option = (const char *) iter->data;
const char *val;
val = nm_dhcp4_config_get_option (config, option);
value_hash_add_str (hash, option, val);
}
g_slist_free (options);
}
static void
dump_dhcp6_to_props (NMDHCP6Config *config, GHashTable *hash)
{
GSList *options, *iter;
options = nm_dhcp6_config_list_options (config);
for (iter = options; iter; iter = g_slist_next (iter)) {
const char *option = (const char *) iter->data;
const char *val;
val = nm_dhcp6_config_get_option (config, option);
value_hash_add_str (hash, option, val);
}
g_slist_free (options);
}
static void
fill_device_props (NMDevice *device,
GHashTable *dev_hash,
GHashTable *ip4_hash,
GHashTable *ip6_hash,
GHashTable *dhcp4_hash,
GHashTable *dhcp6_hash)
{
NMIP4Config *ip4_config;
NMIP6Config *ip6_config;
NMDHCP4Config *dhcp4_config;
NMDHCP6Config *dhcp6_config;
/* If the action is for a VPN, send the VPN's IP interface instead of the device's */
value_hash_add_str (dev_hash, NMD_DEVICE_PROPS_IP_INTERFACE, nm_device_get_ip_iface (device));
value_hash_add_str (dev_hash, NMD_DEVICE_PROPS_INTERFACE, nm_device_get_iface (device));
value_hash_add_uint (dev_hash, NMD_DEVICE_PROPS_TYPE, nm_device_get_device_type (device));
value_hash_add_uint (dev_hash, NMD_DEVICE_PROPS_STATE, nm_device_get_state (device));
value_hash_add_object_path (dev_hash, NMD_DEVICE_PROPS_PATH, nm_device_get_path (device));
ip4_config = nm_device_get_ip4_config (device);
if (ip4_config)
dump_object_to_props (G_OBJECT (ip4_config), ip4_hash);
ip6_config = nm_device_get_ip6_config (device);
if (ip6_config)
dump_object_to_props (G_OBJECT (ip6_config), ip6_hash);
dhcp4_config = nm_device_get_dhcp4_config (device);
if (dhcp4_config)
dump_dhcp4_to_props (dhcp4_config, dhcp4_hash);
dhcp6_config = nm_device_get_dhcp6_config (device);
if (dhcp6_config)
dump_dhcp6_to_props (dhcp6_config, dhcp6_hash);
}
static void
fill_vpn_props (NMIP4Config *ip4_config,
NMIP6Config *ip6_config,
GHashTable *ip4_hash,
GHashTable *ip6_hash)
{
if (ip4_config)
dump_object_to_props (G_OBJECT (ip4_config), ip4_hash);
if (ip6_config)
dump_object_to_props (G_OBJECT (ip6_config), ip6_hash);
}
static void
dispatcher_done_cb (DBusGProxy *proxy, DBusGProxyCall *call, gpointer user_data)
{
dbus_g_proxy_end_call (proxy, call, NULL, G_TYPE_INVALID);
g_object_unref (proxy);
}
void
nm_utils_call_dispatcher (const char *action,
NMConnection *connection,
NMDevice *device,
const char *vpn_iface,
NMIP4Config *vpn_ip4_config,
NMIP6Config *vpn_ip6_config)
{
NMDBusManager *dbus_mgr;
DBusGProxy *proxy;
DBusGConnection *g_connection;
GHashTable *connection_hash;
GHashTable *connection_props;
GHashTable *device_props;
GHashTable *device_ip4_props;
GHashTable *device_ip6_props;
GHashTable *device_dhcp4_props;
GHashTable *device_dhcp6_props;
GHashTable *vpn_ip4_props;
GHashTable *vpn_ip6_props;
g_return_if_fail (action != NULL);
/* All actions except 'hostname' require a device */
if (strcmp (action, "hostname") != 0)
g_return_if_fail (NM_IS_DEVICE (device));
/* VPN actions require at least an IPv4 config (for now) */
if (strcmp (action, "vpn-up") == 0)
g_return_if_fail (vpn_ip4_config != NULL);
dbus_mgr = nm_dbus_manager_get ();
g_connection = nm_dbus_manager_get_connection (dbus_mgr);
proxy = dbus_g_proxy_new_for_name (g_connection,
NM_DISPATCHER_DBUS_SERVICE,
NM_DISPATCHER_DBUS_PATH,
NM_DISPATCHER_DBUS_IFACE);
if (!proxy) {
nm_log_err (LOGD_CORE, "could not get dispatcher proxy!");
g_object_unref (dbus_mgr);
return;
}
if (connection) {
connection_hash = nm_connection_to_hash (connection, NM_SETTING_HASH_FLAG_NO_SECRETS);
connection_props = value_hash_create ();
/* path */
value_hash_add_object_path (connection_props,
NMD_CONNECTION_PROPS_PATH,
nm_connection_get_path (connection));
} else {
connection_hash = value_hash_create ();
connection_props = value_hash_create ();
}
device_props = value_hash_create ();
device_ip4_props = value_hash_create ();
device_ip6_props = value_hash_create ();
device_dhcp4_props = value_hash_create ();
device_dhcp6_props = value_hash_create ();
vpn_ip4_props = value_hash_create ();
vpn_ip6_props = value_hash_create ();
/* hostname actions only send the hostname */
if (strcmp (action, "hostname") != 0) {
fill_device_props (device,
device_props,
device_ip4_props,
device_ip6_props,
device_dhcp4_props,
device_dhcp6_props);
if (vpn_iface)
fill_vpn_props (vpn_ip4_config, NULL, vpn_ip4_props, vpn_ip6_props);
}
/* Do a non-blocking call, but wait for the reply, because dbus-glib
* sometimes needs time to complete internal housekeeping. If we use
* dbus_g_proxy_call_no_reply(), that housekeeping (specifically the
* GetNameOwner response) doesn't complete and we run into an assert
* on unreffing the proxy.
*/
dbus_g_proxy_begin_call_with_timeout (proxy, "Action",
dispatcher_done_cb,
dbus_mgr, /* automatically unref the dbus mgr when call is done */
g_object_unref,
5000,
G_TYPE_STRING, action,
DBUS_TYPE_G_MAP_OF_MAP_OF_VARIANT, connection_hash,
DBUS_TYPE_G_MAP_OF_VARIANT, connection_props,
DBUS_TYPE_G_MAP_OF_VARIANT, device_props,
DBUS_TYPE_G_MAP_OF_VARIANT, device_ip4_props,
DBUS_TYPE_G_MAP_OF_VARIANT, device_ip6_props,
DBUS_TYPE_G_MAP_OF_VARIANT, device_dhcp4_props,
DBUS_TYPE_G_MAP_OF_VARIANT, device_dhcp6_props,
G_TYPE_STRING, vpn_iface ? vpn_iface : "",
DBUS_TYPE_G_MAP_OF_VARIANT, vpn_ip4_props,
DBUS_TYPE_G_MAP_OF_VARIANT, vpn_ip6_props,
G_TYPE_INVALID);
g_hash_table_destroy (connection_hash);
g_hash_table_destroy (connection_props);
g_hash_table_destroy (device_props);
g_hash_table_destroy (device_ip4_props);
g_hash_table_destroy (device_ip6_props);
g_hash_table_destroy (device_dhcp4_props);
g_hash_table_destroy (device_dhcp6_props);
g_hash_table_destroy (vpn_ip4_props);
g_hash_table_destroy (vpn_ip6_props);
}
gboolean
nm_match_spec_hwaddr (const GSList *specs, const char *hwaddr)
{
const GSList *iter;
char *hwaddr_match, *p;
g_return_val_if_fail (hwaddr != NULL, FALSE);
p = hwaddr_match = g_strdup_printf ("mac:%s", hwaddr);
while (*p) {
*p = g_ascii_tolower (*p);
p++;
}
for (iter = specs; iter; iter = g_slist_next (iter)) {
if (!strcmp ((const char *) iter->data, hwaddr_match)) {
g_free (hwaddr_match);
return TRUE;
}
}
g_free (hwaddr_match);
return FALSE;
}
#define BUFSIZE 10
static gboolean
parse_subchannels (const char *subchannels, guint32 *a, guint32 *b, guint32 *c)
{
long unsigned int tmp;
char buf[BUFSIZE + 1];
const char *p = subchannels;
int i = 0;
char *pa = NULL, *pb = NULL, *pc = NULL;
g_return_val_if_fail (subchannels != NULL, FALSE);
g_return_val_if_fail (a != NULL, FALSE);
g_return_val_if_fail (*a == 0, FALSE);
g_return_val_if_fail (b != NULL, FALSE);
g_return_val_if_fail (*b == 0, FALSE);
g_return_val_if_fail (c != NULL, FALSE);
g_return_val_if_fail (*c == 0, FALSE);
/* sanity check */
if (!isxdigit (subchannels[0]))
return FALSE;
/* Get the first channel */
while (*p && (*p != ',')) {
if (!isxdigit (*p) && (*p != '.'))
return FALSE; /* Invalid chars */
if (i >= BUFSIZE)
return FALSE; /* Too long to be a subchannel */
buf[i++] = *p++;
}
buf[i] = '\0';
/* and grab each of its elements, there should be 3 */
pa = &buf[0];
pb = strchr (buf, '.');
if (pb)
pc = strchr (pb + 1, '.');
if (!pa || !pb || !pc)
return FALSE;
/* Split the string */
*pb++ = '\0';
*pc++ = '\0';
errno = 0;
tmp = strtoul (pa, NULL, 16);
if (errno)
return FALSE;
*a = (guint32) tmp;
errno = 0;
tmp = strtoul (pb, NULL, 16);
if (errno)
return FALSE;
*b = (guint32) tmp;
errno = 0;
tmp = strtoul (pc, NULL, 16);
if (errno)
return FALSE;
*c = (guint32) tmp;
return TRUE;
}
#define SUBCHAN_TAG "s390-subchannels:"
gboolean
nm_match_spec_s390_subchannels (const GSList *specs, const char *subchannels)
{
const GSList *iter;
guint32 a = 0, b = 0, c = 0;
guint32 spec_a = 0, spec_b = 0, spec_c = 0;
g_return_val_if_fail (subchannels != NULL, FALSE);
if (!parse_subchannels (subchannels, &a, &b, &c))
return FALSE;
for (iter = specs; iter; iter = g_slist_next (iter)) {
const char *spec = iter->data;
if (!strncmp (spec, SUBCHAN_TAG, strlen (SUBCHAN_TAG))) {
spec += strlen (SUBCHAN_TAG);
if (parse_subchannels (spec, &spec_a, &spec_b, &spec_c)) {
if (a == spec_a && b == spec_b && c == spec_c)
return TRUE;
}
}
}
return FALSE;
}
const char *
nm_utils_get_shared_wifi_permission (NMConnection *connection)
{
NMSettingWireless *s_wifi;
NMSettingWirelessSecurity *s_wsec;
NMSettingIP4Config *s_ip4;
const char *method = NULL;
s_ip4 = nm_connection_get_setting_ip4_config (connection);
if (s_ip4)
method = nm_setting_ip4_config_get_method (s_ip4);
if (g_strcmp0 (method, NM_SETTING_IP4_CONFIG_METHOD_SHARED) != 0)
return NULL; /* Not shared */
s_wifi = nm_connection_get_setting_wireless (connection);
if (s_wifi) {
s_wsec = nm_connection_get_setting_wireless_security (connection);
if (nm_setting_wireless_get_security (s_wifi) || s_wsec)
return NM_AUTH_PERMISSION_WIFI_SHARE_PROTECTED;
else
return NM_AUTH_PERMISSION_WIFI_SHARE_OPEN;
}
return NULL;
}
/*********************************/
static void
nm_gvalue_destroy (gpointer data)
{
GValue *value = (GValue *) data;
g_value_unset (value);
g_slice_free (GValue, value);
}
GHashTable *
value_hash_create (void)
{
return g_hash_table_new_full (g_str_hash, g_str_equal, g_free, nm_gvalue_destroy);
}
void
value_hash_add (GHashTable *hash,
const char *key,
GValue *value)
{
g_hash_table_insert (hash, g_strdup (key), value);
}
void
value_hash_add_str (GHashTable *hash,
const char *key,
const char *str)
{
GValue *value;
value = g_slice_new0 (GValue);
g_value_init (value, G_TYPE_STRING);
g_value_set_string (value, str);
value_hash_add (hash, key, value);
}
void
value_hash_add_object_path (GHashTable *hash,
const char *key,
const char *op)
{
GValue *value;
value = g_slice_new0 (GValue);
g_value_init (value, DBUS_TYPE_G_OBJECT_PATH);
g_value_set_boxed (value, op);
value_hash_add (hash, key, value);
}
void
value_hash_add_uint (GHashTable *hash,
const char *key,
guint32 val)
{
GValue *value;
value = g_slice_new0 (GValue);
g_value_init (value, G_TYPE_UINT);
g_value_set_uint (value, val);
value_hash_add (hash, key, value);
}
void
value_hash_add_bool (GHashTable *hash,
const char *key,
gboolean val)
{
GValue *value;
value = g_slice_new0 (GValue);
g_value_init (value, G_TYPE_BOOLEAN);
g_value_set_boolean (value, val);
value_hash_add (hash, key, value);
}
void
value_hash_add_object_property (GHashTable *hash,
const char *key,
GObject *object,
const char *prop,
GType val_type)
{
GValue *value;
value = g_slice_new0 (GValue);
g_value_init (value, val_type);
g_object_get_property (object, prop, value);
value_hash_add (hash, key, value);
}
gboolean
nm_utils_do_sysctl (const char *path, const char *value)
{
int fd, len, nwrote, total;
fd = open (path, O_WRONLY | O_TRUNC);
if (fd == -1)
return FALSE;
len = strlen (value);
total = 0;
do {
nwrote = write (fd, value + total, len - total);
if (nwrote == -1) {
if (errno == EINTR)
continue;
close (fd);
return FALSE;
}
total += nwrote;
} while (total < len);
close (fd);
return TRUE;
}
gboolean
nm_utils_get_proc_sys_net_value (const char *path,
const char *iface,
guint32 *out_value)
{
GError *error = NULL;
char *contents = NULL;
gboolean success = FALSE;
long int tmp;
if (!g_file_get_contents (path, &contents, NULL, &error)) {
nm_log_dbg (LOGD_DEVICE, "(%s): error reading %s: (%d) %s",
iface, path,
error ? error->code : -1,
error && error->message ? error->message : "(unknown)");
g_clear_error (&error);
} else {
errno = 0;
tmp = strtol (contents, NULL, 10);
if ((errno == 0) && (tmp == 0 || tmp == 1)) {
*out_value = (guint32) tmp;
success = TRUE;
}
g_free (contents);
}
return success;
}
static char *
get_new_connection_name (const GSList *existing,
const char *format,
const char *preferred)
{
GSList *names = NULL;
const GSList *iter;
char *cname = NULL;
int i = 0;
gboolean preferred_found = FALSE;
for (iter = existing; iter; iter = g_slist_next (iter)) {
NMConnection *candidate = NM_CONNECTION (iter->data);
const char *id;
id = nm_connection_get_id (candidate);
g_assert (id);
names = g_slist_append (names, (gpointer) id);
if (preferred && !preferred_found && (strcmp (preferred, id) == 0))
preferred_found = TRUE;
}
/* Return the preferred name if it was unique */
if (preferred && !preferred_found) {
g_slist_free (names);
return g_strdup (preferred);
}
/* Otherwise find the next available unique connection name using the given
* connection name template.
*/
while (!cname && (i++ < 10000)) {
char *temp;
gboolean found = FALSE;
temp = g_strdup_printf (format, i);
for (iter = names; iter; iter = g_slist_next (iter)) {
if (!strcmp (iter->data, temp)) {
found = TRUE;
break;
}
}
if (!found)
cname = temp;
else
g_free (temp);
}
g_slist_free (names);
return cname;
}
void
nm_utils_complete_generic (NMConnection *connection,
const char *ctype,
const GSList *existing,
const char *format,
const char *preferred,
gboolean default_enable_ipv6)
{
NMSettingConnection *s_con;
NMSettingIP4Config *s_ip4;
NMSettingIP6Config *s_ip6;
const char *method;
char *id, *uuid;
s_con = (NMSettingConnection *) nm_connection_get_setting (connection, NM_TYPE_SETTING_CONNECTION);
if (!s_con) {
s_con = (NMSettingConnection *) nm_setting_connection_new ();
nm_connection_add_setting (connection, NM_SETTING (s_con));
}
g_object_set (G_OBJECT (s_con), NM_SETTING_CONNECTION_TYPE, ctype, NULL);
if (!nm_setting_connection_get_uuid (s_con)) {
uuid = nm_utils_uuid_generate ();
g_object_set (G_OBJECT (s_con), NM_SETTING_CONNECTION_UUID, uuid, NULL);
g_free (uuid);
}
/* Add a connection ID if absent */
if (!nm_setting_connection_get_id (s_con)) {
id = get_new_connection_name (existing, format, preferred);
g_object_set (G_OBJECT (s_con), NM_SETTING_CONNECTION_ID, id, NULL);
g_free (id);
}
/* Add an 'auto' IPv4 connection if present */
s_ip4 = (NMSettingIP4Config *) nm_connection_get_setting (connection, NM_TYPE_SETTING_IP4_CONFIG);
if (!s_ip4) {
s_ip4 = (NMSettingIP4Config *) nm_setting_ip4_config_new ();
nm_connection_add_setting (connection, NM_SETTING (s_ip4));
}
method = nm_setting_ip4_config_get_method (s_ip4);
if (!method) {
g_object_set (G_OBJECT (s_ip4),
NM_SETTING_IP4_CONFIG_METHOD, NM_SETTING_IP4_CONFIG_METHOD_AUTO,
NULL);
}
/* Add an 'auto' IPv6 setting if allowed and not preset */
s_ip6 = (NMSettingIP6Config *) nm_connection_get_setting (connection, NM_TYPE_SETTING_IP6_CONFIG);
if (!s_ip6 && default_enable_ipv6) {
s_ip6 = (NMSettingIP6Config *) nm_setting_ip6_config_new ();
nm_connection_add_setting (connection, NM_SETTING (s_ip6));
}
if (s_ip6 && !nm_setting_ip6_config_get_method (s_ip6)) {
g_object_set (G_OBJECT (s_ip6),
NM_SETTING_IP6_CONFIG_METHOD, NM_SETTING_IP6_CONFIG_METHOD_AUTO,
NM_SETTING_IP6_CONFIG_MAY_FAIL, TRUE,
NULL);
}
}
Reference in New Issue View Git Blame Copy Permalink