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NetworkManager/src/nm-ip6-config.c
Thomas Haller a2e93f2de4 libnm: allow zero prefix length for NMIPRoute 
NMIPRoute is used by NMSettingIPConfig, but also
NMIPConfig. In the former case, default routes are (still)
disallowed. But in the NMIPConfig use-case, it can make sense
to expose default routes as NMIPRoute instances.

Relax the restriction on the NMIPRoute API to allow this
future change.

No code actually supports having NMIPRoute instances with
prefix length zero (default routes). Up to now, all such uses
would be a bug.

https://bugzilla.gnome.org/show_bug.cgi?id=739969

Signed-off-by: Thomas Haller <thaller@redhat.com>
2014-11-24 18:02:46 +01:00

1874 lines
53 KiB
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/* -*- 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) 2005 - 2013 Red Hat, Inc.
* Copyright (C) 2006 - 2008 Novell, Inc.
*/
#include "config.h"
#include <string.h>
#include <arpa/inet.h>
#include "nm-ip6-config.h"
#include "nm-glib-compat.h"
#include "nm-utils.h"
#include "nm-platform.h"
#include "nm-dbus-manager.h"
#include "nm-dbus-glib-types.h"
#include "nm-ip6-config-glue.h"
#include "NetworkManagerUtils.h"
G_DEFINE_TYPE (NMIP6Config, nm_ip6_config, G_TYPE_OBJECT)
#define NM_IP6_CONFIG_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_IP6_CONFIG, NMIP6ConfigPrivate))
typedef struct {
char *path;
gboolean never_default;
struct in6_addr gateway;
GArray *addresses;
GArray *routes;
GArray *nameservers;
GPtrArray *domains;
GPtrArray *searches;
guint32 mss;
} NMIP6ConfigPrivate;
enum {
PROP_0,
PROP_ADDRESS_DATA,
PROP_ADDRESSES,
PROP_ROUTE_DATA,
PROP_ROUTES,
PROP_GATEWAY,
PROP_NAMESERVERS,
PROP_DOMAINS,
PROP_SEARCHES,
LAST_PROP
};
static GParamSpec *obj_properties[LAST_PROP] = { NULL, };
#define _NOTIFY(config, prop) G_STMT_START { g_object_notify_by_pspec (G_OBJECT (config), obj_properties[prop]); } G_STMT_END
NMIP6Config *
nm_ip6_config_new (void)
{
return (NMIP6Config *) g_object_new (NM_TYPE_IP6_CONFIG, NULL);
}
void
nm_ip6_config_export (NMIP6Config *config)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
static guint32 counter = 0;
if (!priv->path) {
priv->path = g_strdup_printf (NM_DBUS_PATH "/IP6Config/%d", counter++);
nm_dbus_manager_register_object (nm_dbus_manager_get (), priv->path, config);
}
}
const char *
nm_ip6_config_get_dbus_path (const NMIP6Config *config)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
return priv->path;
}
/******************************************************************/
static gboolean
same_prefix (const struct in6_addr *address1, const struct in6_addr *address2, int plen)
{
const guint8 *bytes1 = (const guint8 *) address1;
const guint8 *bytes2 = (const guint8 *) address2;
int nbytes = plen / 8;
int nbits = plen % 8;
int masked1 = bytes1[nbytes] >> (8 - nbits);
int masked2 = bytes2[nbytes] >> (8 - nbits);
if (nbytes && memcmp (bytes1, bytes2, nbytes))
return FALSE;
return masked1 == masked2;
}
/******************************************************************/
/**
* nm_ip6_config_capture_resolv_conf():
* @nameservers: array of struct in6_addr
* @rc_contents: the contents of a resolv.conf or %NULL to read /etc/resolv.conf
*
* Reads all resolv.conf IPv6 nameservers and adds them to @nameservers.
*
* Returns: %TRUE if nameservers were added, %FALSE if @nameservers is unchanged
*/
gboolean
nm_ip6_config_capture_resolv_conf (GArray *nameservers,
const char *rc_contents)
{
GPtrArray *read_ns;
guint i, j;
gboolean changed = FALSE;
g_return_val_if_fail (nameservers != NULL, FALSE);
read_ns = nm_utils_read_resolv_conf_nameservers (rc_contents);
if (!read_ns)
return FALSE;
for (i = 0; i < read_ns->len; i++) {
const char *s = g_ptr_array_index (read_ns, i);
struct in6_addr ns = IN6ADDR_ANY_INIT;
if (!inet_pton (AF_INET6, s, (void *) &ns) || IN6_IS_ADDR_UNSPECIFIED (&ns))
continue;
/* Ignore duplicates */
for (j = 0; j < nameservers->len; j++) {
struct in6_addr *t = &g_array_index (nameservers, struct in6_addr, j);
if (IN6_ARE_ADDR_EQUAL (t, &ns))
break;
}
if (j == nameservers->len) {
g_array_append_val (nameservers, ns);
changed = TRUE;
}
}
g_ptr_array_unref (read_ns);
return changed;
}
static gboolean
addresses_are_duplicate (const NMPlatformIP6Address *a, const NMPlatformIP6Address *b, gboolean consider_plen)
{
return IN6_ARE_ADDR_EQUAL (&a->address, &b->address) && (!consider_plen || a->plen == b->plen);
}
static gboolean
routes_are_duplicate (const NMPlatformIP6Route *a, const NMPlatformIP6Route *b, gboolean consider_gateway_and_metric)
{
return IN6_ARE_ADDR_EQUAL (&a->network, &b->network) && a->plen == b->plen &&
( !consider_gateway_and_metric
|| ( IN6_ARE_ADDR_EQUAL (&a->gateway, &b->gateway)
&& nm_utils_ip6_route_metric_normalize (a->metric) == nm_utils_ip6_route_metric_normalize (b->metric)));
}
static gint
_addresses_sort_cmp_get_prio (const struct in6_addr *addr)
{
if (IN6_IS_ADDR_V4MAPPED (addr))
return 0;
if (IN6_IS_ADDR_V4COMPAT (addr))
return 1;
if (IN6_IS_ADDR_UNSPECIFIED (addr))
return 2;
if (IN6_IS_ADDR_LOOPBACK (addr))
return 3;
if (IN6_IS_ADDR_LINKLOCAL (addr))
return 4;
if (IN6_IS_ADDR_SITELOCAL (addr))
return 5;
return 6;
}
static gint
_addresses_sort_cmp (gconstpointer a, gconstpointer b, gpointer user_data)
{
gint p1, p2, c;
gboolean perm1, perm2, tent1, tent2;
gboolean ipv6_privacy1, ipv6_privacy2;
const NMPlatformIP6Address *a1 = a, *a2 = b;
/* tentative addresses are always sorted back... */
/* sort tentative addresses after non-tentative. */
tent1 = (a1->flags & IFA_F_TENTATIVE);
tent2 = (a2->flags & IFA_F_TENTATIVE);
if (tent1 != tent2)
return tent1 ? 1 : -1;
/* Sort by address type. For example link local will
* be sorted *after* site local or global. */
p1 = _addresses_sort_cmp_get_prio (&a1->address);
p2 = _addresses_sort_cmp_get_prio (&a2->address);
if (p1 != p2)
return p1 > p2 ? -1 : 1;
ipv6_privacy1 = !!(a1->flags & (IFA_F_MANAGETEMPADDR | IFA_F_TEMPORARY));
ipv6_privacy2 = !!(a2->flags & (IFA_F_MANAGETEMPADDR | IFA_F_TEMPORARY));
if (ipv6_privacy1 || ipv6_privacy2) {
gboolean prefer_temp = ((NMSettingIP6ConfigPrivacy) GPOINTER_TO_INT (user_data)) == NM_SETTING_IP6_CONFIG_PRIVACY_PREFER_TEMP_ADDR;
gboolean public1 = TRUE, public2 = TRUE;
if (ipv6_privacy1) {
if (a1->flags & IFA_F_TEMPORARY)
public1 = prefer_temp;
else
public1 = !prefer_temp;
}
if (ipv6_privacy2) {
if (a2->flags & IFA_F_TEMPORARY)
public2 = prefer_temp;
else
public2 = !prefer_temp;
}
if (public1 != public2)
return public1 ? -1 : 1;
}
/* Sort the addresses based on their source. */
if (a1->source != a2->source)
return a1->source > a2->source ? -1 : 1;
/* sort permanent addresses before non-permanent. */
perm1 = (a1->flags & IFA_F_PERMANENT);
perm2 = (a2->flags & IFA_F_PERMANENT);
if (perm1 != perm2)
return perm1 ? -1 : 1;
/* finally sort addresses lexically */
c = memcmp (&a1->address, &a2->address, sizeof (a2->address));
return c != 0 ? c : memcmp (a1, a2, sizeof (*a1));
}
gboolean
nm_ip6_config_addresses_sort (NMIP6Config *self, NMSettingIP6ConfigPrivacy use_temporary)
{
NMIP6ConfigPrivate *priv;
size_t data_len = 0;
char *data_pre = NULL;
gboolean changed;
g_return_val_if_fail (NM_IS_IP6_CONFIG (self), FALSE);
priv = NM_IP6_CONFIG_GET_PRIVATE (self);
if (priv->addresses->len > 1) {
data_len = priv->addresses->len * g_array_get_element_size (priv->addresses);
data_pre = g_new (char, data_len);
memcpy (data_pre, priv->addresses->data, data_len);
g_array_sort_with_data (priv->addresses, _addresses_sort_cmp, GINT_TO_POINTER (use_temporary));
changed = memcmp (data_pre, priv->addresses->data, data_len) != 0;
g_free (data_pre);
if (changed) {
_NOTIFY (self, PROP_ADDRESS_DATA);
_NOTIFY (self, PROP_ADDRESSES);
return TRUE;
}
}
return FALSE;
}
NMIP6Config *
nm_ip6_config_capture (int ifindex, gboolean capture_resolv_conf, NMSettingIP6ConfigPrivacy use_temporary)
{
NMIP6Config *config;
NMIP6ConfigPrivate *priv;
guint i;
guint32 lowest_metric = G_MAXUINT32;
struct in6_addr old_gateway = IN6ADDR_ANY_INIT;
gboolean has_gateway = FALSE;
gboolean notify_nameservers = FALSE;
/* Slaves have no IP configuration */
if (nm_platform_link_get_master (ifindex) > 0)
return NULL;
config = nm_ip6_config_new ();
priv = NM_IP6_CONFIG_GET_PRIVATE (config);
g_array_unref (priv->addresses);
g_array_unref (priv->routes);
priv->addresses = nm_platform_ip6_address_get_all (ifindex);
priv->routes = nm_platform_ip6_route_get_all (ifindex, NM_PLATFORM_GET_ROUTE_MODE_ALL);
/* Extract gateway from default route */
old_gateway = priv->gateway;
for (i = 0; i < priv->routes->len; i++) {
const NMPlatformIP6Route *route = &g_array_index (priv->routes, NMPlatformIP6Route, i);
if (NM_PLATFORM_IP_ROUTE_IS_DEFAULT (route)) {
if (route->metric < lowest_metric) {
priv->gateway = route->gateway;
lowest_metric = route->metric;
}
has_gateway = TRUE;
/* Remove the default route from the list */
g_array_remove_index (priv->routes, i);
i--;
}
}
/* If there is a host route to the gateway, ignore that route. It is
* automatically added by NetworkManager when needed.
*/
if (has_gateway) {
for (i = 0; i < priv->routes->len; i++) {
const NMPlatformIP6Route *route = &g_array_index (priv->routes, NMPlatformIP6Route, i);
if ( route->plen == 128
&& IN6_ARE_ADDR_EQUAL (&route->network, &priv->gateway)
&& IN6_IS_ADDR_UNSPECIFIED (&route->gateway)) {
g_array_remove_index (priv->routes, i);
i--;
}
}
}
/* If the interface has the default route, and has IPv6 addresses, capture
* nameservers from /etc/resolv.conf.
*/
if (priv->addresses->len && has_gateway && capture_resolv_conf)
notify_nameservers = nm_ip6_config_capture_resolv_conf (priv->nameservers, NULL);
g_array_sort_with_data (priv->addresses, _addresses_sort_cmp, GINT_TO_POINTER (use_temporary));
/* actually, nobody should be connected to the signal, just to be sure, notify */
if (notify_nameservers)
_NOTIFY (config, PROP_NAMESERVERS);
_NOTIFY (config, PROP_ADDRESS_DATA);
_NOTIFY (config, PROP_ADDRESSES);
_NOTIFY (config, PROP_ROUTE_DATA);
_NOTIFY (config, PROP_ROUTES);
if (!IN6_ARE_ADDR_EQUAL (&priv->gateway, &old_gateway))
_NOTIFY (config, PROP_GATEWAY);
return config;
}
gboolean
nm_ip6_config_commit (const NMIP6Config *config, int ifindex)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
int i;
gboolean success;
g_return_val_if_fail (ifindex > 0, FALSE);
g_return_val_if_fail (config != NULL, FALSE);
/* Addresses */
nm_platform_ip6_address_sync (ifindex, priv->addresses);
/* Routes */
{
int count = nm_ip6_config_get_num_routes (config);
GArray *routes = g_array_sized_new (FALSE, FALSE, sizeof (NMPlatformIP6Route), count);
const NMPlatformIP6Route *route;
for (i = 0; i < count; i++) {
route = nm_ip6_config_get_route (config, i);
/* Don't add the route if it's more specific than one of the subnets
* the device already has an IP address on.
*/
if ( IN6_IS_ADDR_UNSPECIFIED (&route->gateway)
&& nm_ip6_config_destination_is_direct (config, &route->network, route->plen))
continue;
g_array_append_vals (routes, route, 1);
}
success = nm_platform_ip6_route_sync (ifindex, routes);
g_array_unref (routes);
}
return success;
}
void
nm_ip6_config_merge_setting (NMIP6Config *config, NMSettingIPConfig *setting, guint32 default_route_metric)
{
guint naddresses, nroutes, nnameservers, nsearches;
const char *gateway_str;
int i;
if (!setting)
return;
g_return_if_fail (NM_IS_SETTING_IP6_CONFIG (setting));
naddresses = nm_setting_ip_config_get_num_addresses (setting);
nroutes = nm_setting_ip_config_get_num_routes (setting);
nnameservers = nm_setting_ip_config_get_num_dns (setting);
nsearches = nm_setting_ip_config_get_num_dns_searches (setting);
g_object_freeze_notify (G_OBJECT (config));
/* Gateway */
if (nm_setting_ip_config_get_never_default (setting))
nm_ip6_config_set_never_default (config, TRUE);
else if (nm_setting_ip_config_get_ignore_auto_routes (setting))
nm_ip6_config_set_never_default (config, FALSE);
gateway_str = nm_setting_ip_config_get_gateway (setting);
if (gateway_str) {
struct in6_addr gateway;
inet_pton (AF_INET6, gateway_str, &gateway);
nm_ip6_config_set_gateway (config, &gateway);
}
/* Addresses */
for (i = 0; i < naddresses; i++) {
NMIPAddress *s_addr = nm_setting_ip_config_get_address (setting, i);
NMPlatformIP6Address address;
memset (&address, 0, sizeof (address));
nm_ip_address_get_address_binary (s_addr, &address.address);
address.plen = nm_ip_address_get_prefix (s_addr);
address.lifetime = NM_PLATFORM_LIFETIME_PERMANENT;
address.preferred = NM_PLATFORM_LIFETIME_PERMANENT;
address.source = NM_IP_CONFIG_SOURCE_USER;
nm_ip6_config_add_address (config, &address);
}
/* Routes */
if (nm_setting_ip_config_get_ignore_auto_routes (setting))
nm_ip6_config_reset_routes (config);
for (i = 0; i < nroutes; i++) {
NMIPRoute *s_route = nm_setting_ip_config_get_route (setting, i);
NMPlatformIP6Route route;
memset (&route, 0, sizeof (route));
nm_ip_route_get_dest_binary (s_route, &route.network);
route.plen = nm_ip_route_get_prefix (s_route);
nm_ip_route_get_next_hop_binary (s_route, &route.gateway);
if (nm_ip_route_get_metric (s_route) == -1)
route.metric = default_route_metric;
else
route.metric = nm_ip_route_get_metric (s_route);
route.source = NM_IP_CONFIG_SOURCE_USER;
g_assert (route.plen > 0);
nm_ip6_config_add_route (config, &route);
}
/* DNS */
if (nm_setting_ip_config_get_ignore_auto_dns (setting)) {
nm_ip6_config_reset_nameservers (config);
nm_ip6_config_reset_domains (config);
nm_ip6_config_reset_searches (config);
}
for (i = 0; i < nnameservers; i++) {
struct in6_addr ip;
if (inet_pton (AF_INET6, nm_setting_ip_config_get_dns (setting, i), &ip) == 1)
nm_ip6_config_add_nameserver (config, &ip);
}
for (i = 0; i < nsearches; i++)
nm_ip6_config_add_search (config, nm_setting_ip_config_get_dns_search (setting, i));
g_object_thaw_notify (G_OBJECT (config));
}
NMSetting *
nm_ip6_config_create_setting (const NMIP6Config *config)
{
NMSettingIPConfig *s_ip6;
const struct in6_addr *gateway;
guint naddresses, nroutes, nnameservers, nsearches;
const char *method = NULL;
int i;
s_ip6 = NM_SETTING_IP_CONFIG (nm_setting_ip6_config_new ());
if (!config) {
g_object_set (s_ip6,
NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP6_CONFIG_METHOD_IGNORE,
NULL);
return NM_SETTING (s_ip6);
}
gateway = nm_ip6_config_get_gateway (config);
naddresses = nm_ip6_config_get_num_addresses (config);
nroutes = nm_ip6_config_get_num_routes (config);
nnameservers = nm_ip6_config_get_num_nameservers (config);
nsearches = nm_ip6_config_get_num_searches (config);
/* Addresses */
for (i = 0; i < naddresses; i++) {
const NMPlatformIP6Address *address = nm_ip6_config_get_address (config, i);
NMIPAddress *s_addr;
/* Ignore link-local address. */
if (IN6_IS_ADDR_LINKLOCAL (&address->address)) {
if (!method)
method = NM_SETTING_IP6_CONFIG_METHOD_LINK_LOCAL;
continue;
}
/* Detect dynamic address */
if (address->lifetime != NM_PLATFORM_LIFETIME_PERMANENT) {
method = NM_SETTING_IP6_CONFIG_METHOD_AUTO;
continue;
}
/* Static address found. */
if (!method || strcmp (method, NM_SETTING_IP6_CONFIG_METHOD_LINK_LOCAL) == 0)
method = NM_SETTING_IP6_CONFIG_METHOD_MANUAL;
s_addr = nm_ip_address_new_binary (AF_INET6, &address->address, address->plen, NULL);
nm_setting_ip_config_add_address (s_ip6, s_addr);
nm_ip_address_unref (s_addr);
}
/* Gateway */
if ( gateway
&& nm_setting_ip_config_get_num_addresses (s_ip6) > 0) {
g_object_set (s_ip6,
NM_SETTING_IP_CONFIG_GATEWAY, nm_utils_inet6_ntop (gateway, NULL),
NULL);
}
/* Use 'ignore' if the method wasn't previously set */
if (!method)
method = NM_SETTING_IP6_CONFIG_METHOD_IGNORE;
g_object_set (s_ip6, NM_SETTING_IP_CONFIG_METHOD, method, NULL);
/* Routes */
for (i = 0; i < nroutes; i++) {
const NMPlatformIP6Route *route = nm_ip6_config_get_route (config, i);
NMIPRoute *s_route;
/* Ignore link-local route. */
if (IN6_IS_ADDR_LINKLOCAL (&route->network))
continue;
/* Ignore default route. */
if (!route->plen)
continue;
/* Ignore routes provided by external sources */
if (route->source != NM_IP_CONFIG_SOURCE_USER)
continue;
s_route = nm_ip_route_new_binary (AF_INET6,
&route->network, route->plen,
&route->gateway, route->metric,
NULL);
nm_setting_ip_config_add_route (s_ip6, s_route);
nm_ip_route_unref (s_route);
}
/* DNS */
for (i = 0; i < nnameservers; i++) {
const struct in6_addr *nameserver = nm_ip6_config_get_nameserver (config, i);
nm_setting_ip_config_add_dns (s_ip6, nm_utils_inet6_ntop (nameserver, NULL));
}
for (i = 0; i < nsearches; i++) {
const char *search = nm_ip6_config_get_search (config, i);
nm_setting_ip_config_add_dns_search (s_ip6, search);
}
return NM_SETTING (s_ip6);
}
/******************************************************************/
void
nm_ip6_config_merge (NMIP6Config *dst, const NMIP6Config *src)
{
guint32 i;
g_return_if_fail (src != NULL);
g_return_if_fail (dst != NULL);
g_object_freeze_notify (G_OBJECT (dst));
/* addresses */
for (i = 0; i < nm_ip6_config_get_num_addresses (src); i++)
nm_ip6_config_add_address (dst, nm_ip6_config_get_address (src, i));
/* nameservers */
for (i = 0; i < nm_ip6_config_get_num_nameservers (src); i++)
nm_ip6_config_add_nameserver (dst, nm_ip6_config_get_nameserver (src, i));
/* default gateway */
if (!nm_ip6_config_get_gateway (dst))
nm_ip6_config_set_gateway (dst, nm_ip6_config_get_gateway (src));
/* routes */
for (i = 0; i < nm_ip6_config_get_num_routes (src); i++)
nm_ip6_config_add_route (dst, nm_ip6_config_get_route (src, i));
/* domains */
for (i = 0; i < nm_ip6_config_get_num_domains (src); i++)
nm_ip6_config_add_domain (dst, nm_ip6_config_get_domain (src, i));
/* dns searches */
for (i = 0; i < nm_ip6_config_get_num_searches (src); i++)
nm_ip6_config_add_search (dst, nm_ip6_config_get_search (src, i));
if (!nm_ip6_config_get_mss (dst))
nm_ip6_config_set_mss (dst, nm_ip6_config_get_mss (src));
g_object_thaw_notify (G_OBJECT (dst));
}
gboolean
nm_ip6_config_destination_is_direct (const NMIP6Config *config, const struct in6_addr *network, int plen)
{
int num = nm_ip6_config_get_num_addresses (config);
int i;
for (i = 0; i < num; i++) {
const NMPlatformIP6Address *item = nm_ip6_config_get_address (config, i);
if (item->plen <= plen && same_prefix (&item->address, network, item->plen) &&
!(item->flags & IFA_F_NOPREFIXROUTE))
return TRUE;
}
return FALSE;
}
/**
* nm_ip6_config_subtract:
* @dst: config from which to remove everything in @src
* @src: config to remove from @dst
*
* Removes everything in @src from @dst.
*/
void
nm_ip6_config_subtract (NMIP6Config *dst, const NMIP6Config *src)
{
guint32 i, j;
const struct in6_addr *dst_tmp, *src_tmp;
g_return_if_fail (src != NULL);
g_return_if_fail (dst != NULL);
g_object_freeze_notify (G_OBJECT (dst));
/* addresses */
for (i = 0; i < nm_ip6_config_get_num_addresses (src); i++) {
const NMPlatformIP6Address *src_addr = nm_ip6_config_get_address (src, i);
for (j = 0; j < nm_ip6_config_get_num_addresses (dst); j++) {
const NMPlatformIP6Address *dst_addr = nm_ip6_config_get_address (dst, j);
if (IN6_ARE_ADDR_EQUAL (&src_addr->address, &dst_addr->address)) {
nm_ip6_config_del_address (dst, j);
break;
}
}
}
/* nameservers */
for (i = 0; i < nm_ip6_config_get_num_nameservers (src); i++) {
const struct in6_addr *src_ns = nm_ip6_config_get_nameserver (src, i);
for (j = 0; j < nm_ip6_config_get_num_nameservers (dst); j++) {
const struct in6_addr *dst_ns = nm_ip6_config_get_nameserver (dst, j);
if (IN6_ARE_ADDR_EQUAL (src_ns, dst_ns)) {
nm_ip6_config_del_nameserver (dst, j);
break;
}
}
}
/* default gateway */
src_tmp = nm_ip6_config_get_gateway (src);
dst_tmp = nm_ip6_config_get_gateway (dst);
if (src_tmp && dst_tmp && IN6_ARE_ADDR_EQUAL (src_tmp, dst_tmp))
nm_ip6_config_set_gateway (dst, NULL);
if (!nm_ip6_config_get_num_addresses (dst))
nm_ip6_config_set_gateway (dst, NULL);
/* routes */
for (i = 0; i < nm_ip6_config_get_num_routes (src); i++) {
const NMPlatformIP6Route *src_route = nm_ip6_config_get_route (src, i);
for (j = 0; j < nm_ip6_config_get_num_routes (dst); j++) {
const NMPlatformIP6Route *dst_route = nm_ip6_config_get_route (dst, j);
if (routes_are_duplicate (src_route, dst_route, FALSE)) {
nm_ip6_config_del_route (dst, j);
break;
}
}
}
/* domains */
for (i = 0; i < nm_ip6_config_get_num_domains (src); i++) {
const char *src_domain = nm_ip6_config_get_domain (src, i);
for (j = 0; j < nm_ip6_config_get_num_domains (dst); j++) {
const char *dst_domain = nm_ip6_config_get_domain (dst, j);
if (g_strcmp0 (src_domain, dst_domain) == 0) {
nm_ip6_config_del_domain (dst, j);
break;
}
}
}
/* dns searches */
for (i = 0; i < nm_ip6_config_get_num_searches (src); i++) {
const char *src_search = nm_ip6_config_get_search (src, i);
for (j = 0; j < nm_ip6_config_get_num_searches (dst); j++) {
const char *dst_search = nm_ip6_config_get_search (dst, j);
if (g_strcmp0 (src_search, dst_search) == 0) {
nm_ip6_config_del_search (dst, j);
break;
}
}
}
if (nm_ip6_config_get_mss (src) == nm_ip6_config_get_mss (dst))
nm_ip6_config_set_mss (dst, 0);
g_object_thaw_notify (G_OBJECT (dst));
}
/**
* nm_ip6_config_replace:
* @dst: config which will be replaced with everything in @src
* @src: config to copy over to @dst
* @relevant_changes: return whether there are changes to the
* destination object that are relevant. This is equal to
* nm_ip6_config_equal() showing any difference.
*
* Replaces everything in @dst with @src so that the two configurations
* contain the same content -- with the exception of the dbus path.
*
* Returns: whether the @dst instance changed in any way (including minor changes,
* that are not signaled by the output parameter @relevant_changes).
*/
gboolean
nm_ip6_config_replace (NMIP6Config *dst, const NMIP6Config *src, gboolean *relevant_changes)
{
#ifndef G_DISABLE_ASSERT
gboolean config_equal;
#endif
gboolean has_minor_changes = FALSE, has_relevant_changes = FALSE, are_equal;
guint i, num;
NMIP6ConfigPrivate *dst_priv, *src_priv;
const NMPlatformIP6Address *dst_addr, *src_addr;
const NMPlatformIP6Route *dst_route, *src_route;
g_return_val_if_fail (src != NULL, FALSE);
g_return_val_if_fail (dst != NULL, FALSE);
g_return_val_if_fail (src != dst, FALSE);
#ifndef G_DISABLE_ASSERT
config_equal = nm_ip6_config_equal (dst, src);
#endif
dst_priv = NM_IP6_CONFIG_GET_PRIVATE (dst);
src_priv = NM_IP6_CONFIG_GET_PRIVATE (src);
g_object_freeze_notify (G_OBJECT (dst));
/* never_default */
if (src_priv->never_default != dst_priv->never_default) {
dst_priv->never_default = src_priv->never_default;
has_minor_changes = TRUE;
}
/* default gateway */
if (!IN6_ARE_ADDR_EQUAL (&src_priv->gateway, &dst_priv->gateway)) {
nm_ip6_config_set_gateway (dst, &src_priv->gateway);
has_relevant_changes = TRUE;
}
/* addresses */
num = nm_ip6_config_get_num_addresses (src);
are_equal = num == nm_ip6_config_get_num_addresses (dst);
if (are_equal) {
for (i = 0; i < num; i++ ) {
if (nm_platform_ip6_address_cmp (src_addr = nm_ip6_config_get_address (src, i),
dst_addr = nm_ip6_config_get_address (dst, i))) {
are_equal = FALSE;
if (!addresses_are_duplicate (src_addr, dst_addr, TRUE)) {
has_relevant_changes = TRUE;
break;
}
}
}
} else
has_relevant_changes = TRUE;
if (!are_equal) {
nm_ip6_config_reset_addresses (dst);
for (i = 0; i < num; i++)
nm_ip6_config_add_address (dst, nm_ip6_config_get_address (src, i));
has_minor_changes = TRUE;
}
/* routes */
num = nm_ip6_config_get_num_routes (src);
are_equal = num == nm_ip6_config_get_num_routes (dst);
if (are_equal) {
for (i = 0; i < num; i++ ) {
if (nm_platform_ip6_route_cmp (src_route = nm_ip6_config_get_route (src, i),
dst_route = nm_ip6_config_get_route (dst, i))) {
are_equal = FALSE;
if (!routes_are_duplicate (src_route, dst_route, TRUE)) {
has_relevant_changes = TRUE;
break;
}
}
}
} else
has_relevant_changes = TRUE;
if (!are_equal) {
nm_ip6_config_reset_routes (dst);
for (i = 0; i < num; i++)
nm_ip6_config_add_route (dst, nm_ip6_config_get_route (src, i));
has_minor_changes = TRUE;
}
/* nameservers */
num = nm_ip6_config_get_num_nameservers (src);
are_equal = num == nm_ip6_config_get_num_nameservers (dst);
if (are_equal) {
for (i = 0; i < num; i++ ) {
if (!IN6_ARE_ADDR_EQUAL (nm_ip6_config_get_nameserver (src, i),
nm_ip6_config_get_nameserver (dst, i))) {
are_equal = FALSE;
break;
}
}
}
if (!are_equal) {
nm_ip6_config_reset_nameservers (dst);
for (i = 0; i < num; i++)
nm_ip6_config_add_nameserver (dst, nm_ip6_config_get_nameserver (src, i));
has_relevant_changes = TRUE;
}
/* domains */
num = nm_ip6_config_get_num_domains (src);
are_equal = num == nm_ip6_config_get_num_domains (dst);
if (are_equal) {
for (i = 0; i < num; i++ ) {
if (g_strcmp0 (nm_ip6_config_get_domain (src, i),
nm_ip6_config_get_domain (dst, i))) {
are_equal = FALSE;
break;
}
}
}
if (!are_equal) {
nm_ip6_config_reset_domains (dst);
for (i = 0; i < num; i++)
nm_ip6_config_add_domain (dst, nm_ip6_config_get_domain (src, i));
has_relevant_changes = TRUE;
}
/* dns searches */
num = nm_ip6_config_get_num_searches (src);
are_equal = num == nm_ip6_config_get_num_searches (dst);
if (are_equal) {
for (i = 0; i < num; i++ ) {
if (g_strcmp0 (nm_ip6_config_get_search (src, i),
nm_ip6_config_get_search (dst, i))) {
are_equal = FALSE;
break;
}
}
}
if (!are_equal) {
nm_ip6_config_reset_searches (dst);
for (i = 0; i < num; i++)
nm_ip6_config_add_search (dst, nm_ip6_config_get_search (src, i));
has_relevant_changes = TRUE;
}
/* mss */
if (src_priv->mss != dst_priv->mss) {
nm_ip6_config_set_mss (dst, src_priv->mss);
has_minor_changes = TRUE;
}
/* config_equal does not compare *all* the fields, therefore, we might have has_minor_changes
* regardless of config_equal. But config_equal must correspond to has_relevant_changes. */
g_assert (config_equal == !has_relevant_changes);
g_object_thaw_notify (G_OBJECT (dst));
if (relevant_changes)
*relevant_changes = has_relevant_changes;
return has_relevant_changes || has_minor_changes;
}
void
nm_ip6_config_dump (const NMIP6Config *config, const char *detail)
{
const struct in6_addr *tmp;
guint32 i;
const char *str;
g_return_if_fail (config != NULL);
g_message ("--------- NMIP6Config %p (%s)", config, detail);
str = nm_ip6_config_get_dbus_path (config);
if (str)
g_message (" path: %s", str);
/* addresses */
for (i = 0; i < nm_ip6_config_get_num_addresses (config); i++)
g_message (" a: %s", nm_platform_ip6_address_to_string (nm_ip6_config_get_address (config, i)));
/* default gateway */
tmp = nm_ip6_config_get_gateway (config);
if (tmp)
g_message (" gw: %s", nm_utils_inet6_ntop (tmp, NULL));
/* nameservers */
for (i = 0; i < nm_ip6_config_get_num_nameservers (config); i++) {
tmp = nm_ip6_config_get_nameserver (config, i);
g_message (" ns: %s", nm_utils_inet6_ntop (tmp, NULL));
}
/* routes */
for (i = 0; i < nm_ip6_config_get_num_routes (config); i++)
g_message (" rt: %s", nm_platform_ip6_route_to_string (nm_ip6_config_get_route (config, i)));
/* domains */
for (i = 0; i < nm_ip6_config_get_num_domains (config); i++)
g_message (" domain: %s", nm_ip6_config_get_domain (config, i));
/* dns searches */
for (i = 0; i < nm_ip6_config_get_num_searches (config); i++)
g_message (" search: %s", nm_ip6_config_get_search (config, i));
g_message (" mss: %"G_GUINT32_FORMAT, nm_ip6_config_get_mss (config));
g_message (" n-dflt: %d", nm_ip6_config_get_never_default (config));
}
/******************************************************************/
void
nm_ip6_config_set_never_default (NMIP6Config *config, gboolean never_default)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
priv->never_default = !!never_default;
}
gboolean
nm_ip6_config_get_never_default (const NMIP6Config *config)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
return priv->never_default;
}
void
nm_ip6_config_set_gateway (NMIP6Config *config, const struct in6_addr *gateway)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
if (gateway) {
if (IN6_ARE_ADDR_EQUAL (&priv->gateway, gateway))
return;
priv->gateway = *gateway;
} else {
if (IN6_IS_ADDR_UNSPECIFIED (&priv->gateway))
return;
memset (&priv->gateway, 0, sizeof (priv->gateway));
}
_NOTIFY (config, PROP_GATEWAY);
}
const struct in6_addr *
nm_ip6_config_get_gateway (const NMIP6Config *config)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
return IN6_IS_ADDR_UNSPECIFIED (&priv->gateway) ? NULL : &priv->gateway;
}
/******************************************************************/
void
nm_ip6_config_reset_addresses (NMIP6Config *config)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
if (priv->addresses->len != 0) {
g_array_set_size (priv->addresses, 0);
_NOTIFY (config, PROP_ADDRESS_DATA);
_NOTIFY (config, PROP_ADDRESSES);
}
}
/**
* nm_ip6_config_add_address:
* @config: the #NMIP6Config
* @new: the new address to add to @config
*
* Adds the new address to @config. If an address with the same basic properties
* (address, prefix) already exists in @config, it is overwritten with the
* lifetime and preferred of @new. The source is also overwritten by the source
* from @new if that source is higher priority.
*/
void
nm_ip6_config_add_address (NMIP6Config *config, const NMPlatformIP6Address *new)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
NMPlatformIP6Address item_old;
int i;
g_return_if_fail (new != NULL);
for (i = 0; i < priv->addresses->len; i++ ) {
NMPlatformIP6Address *item = &g_array_index (priv->addresses, NMPlatformIP6Address, i);
if (IN6_ARE_ADDR_EQUAL (&item->address, &new->address)) {
if (nm_platform_ip6_address_cmp (item, new) == 0)
return;
/* remember the old values. */
item_old = *item;
/* Copy over old item to get new lifetime, timestamp, preferred */
*item = *new;
/* But restore highest priority source */
item->source = MAX (item_old.source, new->source);
/* for addresses that we read from the kernel, we keep the timestamps as defined
* by the previous source (item_old). The reason is, that the other source configured the lifetimes
* with "what should be" and the kernel values are "what turned out after configuring it".
*
* For other sources, the longer lifetime wins. */
if ( (new->source == NM_IP_CONFIG_SOURCE_KERNEL && new->source != item_old.source)
|| nm_platform_ip_address_cmp_expiry ((const NMPlatformIPAddress *) &item_old, (const NMPlatformIPAddress *) new) > 0) {
item->timestamp = item_old.timestamp;
item->lifetime = item_old.lifetime;
item->preferred = item_old.preferred;
}
if (nm_platform_ip6_address_cmp (&item_old, item) == 0)
return;
goto NOTIFY;
}
}
g_array_append_val (priv->addresses, *new);
NOTIFY:
_NOTIFY (config, PROP_ADDRESS_DATA);
_NOTIFY (config, PROP_ADDRESSES);
}
void
nm_ip6_config_del_address (NMIP6Config *config, guint i)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
g_return_if_fail (i < priv->addresses->len);
g_array_remove_index (priv->addresses, i);
_NOTIFY (config, PROP_ADDRESS_DATA);
_NOTIFY (config, PROP_ADDRESSES);
}
guint
nm_ip6_config_get_num_addresses (const NMIP6Config *config)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
return priv->addresses->len;
}
const NMPlatformIP6Address *
nm_ip6_config_get_address (const NMIP6Config *config, guint i)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
return &g_array_index (priv->addresses, NMPlatformIP6Address, i);
}
gboolean
nm_ip6_config_address_exists (const NMIP6Config *config,
const NMPlatformIP6Address *needle)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
guint i;
for (i = 0; i < priv->addresses->len; i++) {
const NMPlatformIP6Address *haystack = &g_array_index (priv->addresses, NMPlatformIP6Address, i);
if ( IN6_ARE_ADDR_EQUAL (&needle->address, &haystack->address)
&& needle->plen == haystack->plen)
return TRUE;
}
return FALSE;
}
/******************************************************************/
void
nm_ip6_config_reset_routes (NMIP6Config *config)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
if (priv->routes->len != 0) {
g_array_set_size (priv->routes, 0);
_NOTIFY (config, PROP_ROUTE_DATA);
_NOTIFY (config, PROP_ROUTES);
}
}
/**
* nm_ip6_config_add_route:
* @config: the #NMIP6Config
* @new: the new route to add to @config
*
* Adds the new route to @config. If a route with the same basic properties
* (network, prefix) already exists in @config, it is overwritten including the
* gateway and metric of @new. The source is also overwritten by the source
* from @new if that source is higher priority.
*/
void
nm_ip6_config_add_route (NMIP6Config *config, const NMPlatformIP6Route *new)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
NMIPConfigSource old_source;
int i;
g_return_if_fail (new != NULL);
g_return_if_fail (new->plen > 0);
for (i = 0; i < priv->routes->len; i++ ) {
NMPlatformIP6Route *item = &g_array_index (priv->routes, NMPlatformIP6Route, i);
if (routes_are_duplicate (item, new, FALSE)) {
if (nm_platform_ip6_route_cmp (item, new) == 0)
return;
old_source = item->source;
*item = *new;
/* Restore highest priority source */
item->source = MAX (old_source, new->source);
goto NOTIFY;
}
}
g_array_append_val (priv->routes, *new);
NOTIFY:
_NOTIFY (config, PROP_ROUTE_DATA);
_NOTIFY (config, PROP_ROUTES);
}
void
nm_ip6_config_del_route (NMIP6Config *config, guint i)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
g_return_if_fail (i < priv->routes->len);
g_array_remove_index (priv->routes, i);
_NOTIFY (config, PROP_ROUTE_DATA);
_NOTIFY (config, PROP_ROUTES);
}
guint
nm_ip6_config_get_num_routes (const NMIP6Config *config)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
return priv->routes->len;
}
const NMPlatformIP6Route *
nm_ip6_config_get_route (const NMIP6Config *config, guint i)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
return &g_array_index (priv->routes, NMPlatformIP6Route, i);
}
const NMPlatformIP6Route *
nm_ip6_config_get_direct_route_for_host (const NMIP6Config *config, const struct in6_addr *host)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
guint i;
struct in6_addr network2, host2;
NMPlatformIP6Route *best_route = NULL;
g_return_val_if_fail (host && !IN6_IS_ADDR_UNSPECIFIED (host), NULL);
for (i = 0; i < priv->routes->len; i++) {
NMPlatformIP6Route *item = &g_array_index (priv->routes, NMPlatformIP6Route, i);
if (!IN6_IS_ADDR_UNSPECIFIED (&item->gateway))
continue;
if (best_route && best_route->plen > item->plen)
continue;
nm_utils_ip6_address_clear_host_address (&host2, host, item->plen);
nm_utils_ip6_address_clear_host_address (&network2, &item->network, item->plen);
if (!IN6_ARE_ADDR_EQUAL (&network2, &host2))
continue;
if (best_route &&
nm_utils_ip6_route_metric_normalize (best_route->metric) <= nm_utils_ip6_route_metric_normalize (item->metric))
continue;
best_route = item;
}
return best_route;
}
const NMPlatformIP6Address *
nm_ip6_config_get_subnet_for_host (const NMIP6Config *config, const struct in6_addr *host)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
guint i;
NMPlatformIP6Address *subnet = NULL;
struct in6_addr subnet2, host2;
g_return_val_if_fail (host && !IN6_IS_ADDR_UNSPECIFIED (host), NULL);
for (i = 0; i < priv->addresses->len; i++) {
NMPlatformIP6Address *item = &g_array_index (priv->addresses, NMPlatformIP6Address, i);
if (subnet && subnet->plen >= item->plen)
continue;
nm_utils_ip6_address_clear_host_address (&host2, host, item->plen);
nm_utils_ip6_address_clear_host_address (&subnet2, &item->address, item->plen);
if (IN6_ARE_ADDR_EQUAL (&subnet2, &host2))
subnet = item;
}
return subnet;
}
/******************************************************************/
void
nm_ip6_config_reset_nameservers (NMIP6Config *config)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
if (priv->nameservers->len != 0) {
g_array_set_size (priv->nameservers, 0);
_NOTIFY (config, PROP_NAMESERVERS);
}
}
void
nm_ip6_config_add_nameserver (NMIP6Config *config, const struct in6_addr *new)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
int i;
g_return_if_fail (new != NULL);
for (i = 0; i < priv->nameservers->len; i++)
if (IN6_ARE_ADDR_EQUAL (new, &g_array_index (priv->nameservers, struct in6_addr, i)))
return;
g_array_append_val (priv->nameservers, *new);
_NOTIFY (config, PROP_NAMESERVERS);
}
void
nm_ip6_config_del_nameserver (NMIP6Config *config, guint i)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
g_return_if_fail (i < priv->nameservers->len);
g_array_remove_index (priv->nameservers, i);
_NOTIFY (config, PROP_NAMESERVERS);
}
guint32
nm_ip6_config_get_num_nameservers (const NMIP6Config *config)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
return priv->nameservers->len;
}
const struct in6_addr *
nm_ip6_config_get_nameserver (const NMIP6Config *config, guint i)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
return &g_array_index (priv->nameservers, struct in6_addr, i);
}
/******************************************************************/
void
nm_ip6_config_reset_domains (NMIP6Config *config)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
if (priv->domains->len != 0) {
g_ptr_array_set_size (priv->domains, 0);
_NOTIFY (config, PROP_DOMAINS);
}
}
void
nm_ip6_config_add_domain (NMIP6Config *config, const char *domain)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
int i;
g_return_if_fail (domain != NULL);
g_return_if_fail (domain[0] != '\0');
for (i = 0; i < priv->domains->len; i++)
if (!g_strcmp0 (g_ptr_array_index (priv->domains, i), domain))
return;
g_ptr_array_add (priv->domains, g_strdup (domain));
_NOTIFY (config, PROP_DOMAINS);
}
void
nm_ip6_config_del_domain (NMIP6Config *config, guint i)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
g_return_if_fail (i < priv->domains->len);
g_ptr_array_remove_index (priv->domains, i);
_NOTIFY (config, PROP_DOMAINS);
}
guint32
nm_ip6_config_get_num_domains (const NMIP6Config *config)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
return priv->domains->len;
}
const char *
nm_ip6_config_get_domain (const NMIP6Config *config, guint i)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
return g_ptr_array_index (priv->domains, i);
}
/******************************************************************/
void
nm_ip6_config_reset_searches (NMIP6Config *config)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
if (priv->searches->len != 0) {
g_ptr_array_set_size (priv->searches, 0);
_NOTIFY (config, PROP_SEARCHES);
}
}
void
nm_ip6_config_add_search (NMIP6Config *config, const char *new)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
int i;
g_return_if_fail (new != NULL);
g_return_if_fail (new[0] != '\0');
for (i = 0; i < priv->searches->len; i++)
if (!g_strcmp0 (g_ptr_array_index (priv->searches, i), new))
return;
g_ptr_array_add (priv->searches, g_strdup (new));
_NOTIFY (config, PROP_SEARCHES);
}
void
nm_ip6_config_del_search (NMIP6Config *config, guint i)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
g_return_if_fail (i < priv->searches->len);
g_ptr_array_remove_index (priv->searches, i);
_NOTIFY (config, PROP_SEARCHES);
}
guint32
nm_ip6_config_get_num_searches (const NMIP6Config *config)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
return priv->searches->len;
}
const char *
nm_ip6_config_get_search (const NMIP6Config *config, guint i)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
return g_ptr_array_index (priv->searches, i);
}
/******************************************************************/
void
nm_ip6_config_set_mss (NMIP6Config *config, guint32 mss)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
priv->mss = mss;
}
guint32
nm_ip6_config_get_mss (const NMIP6Config *config)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
return priv->mss;
}
/******************************************************************/
static inline void
hash_u32 (GChecksum *sum, guint32 n)
{
g_checksum_update (sum, (const guint8 *) &n, sizeof (n));
}
static inline void
hash_in6addr (GChecksum *sum, const struct in6_addr *a)
{
if (a)
g_checksum_update (sum, (const guint8 *) a, sizeof (*a));
else
g_checksum_update (sum, (const guint8 *) &in6addr_any, sizeof (in6addr_any));
}
void
nm_ip6_config_hash (const NMIP6Config *config, GChecksum *sum, gboolean dns_only)
{
guint32 i;
const char *s;
g_return_if_fail (config);
g_return_if_fail (sum);
if (dns_only == FALSE) {
hash_in6addr (sum, nm_ip6_config_get_gateway (config));
for (i = 0; i < nm_ip6_config_get_num_addresses (config); i++) {
const NMPlatformIP6Address *address = nm_ip6_config_get_address (config, i);
hash_in6addr (sum, &address->address);
hash_u32 (sum, address->plen);
}
for (i = 0; i < nm_ip6_config_get_num_routes (config); i++) {
const NMPlatformIP6Route *route = nm_ip6_config_get_route (config, i);
hash_in6addr (sum, &route->network);
hash_u32 (sum, route->plen);
hash_in6addr (sum, &route->gateway);
hash_u32 (sum, route->metric);
}
}
for (i = 0; i < nm_ip6_config_get_num_nameservers (config); i++)
hash_in6addr (sum, nm_ip6_config_get_nameserver (config, i));
for (i = 0; i < nm_ip6_config_get_num_domains (config); i++) {
s = nm_ip6_config_get_domain (config, i);
g_checksum_update (sum, (const guint8 *) s, strlen (s));
}
for (i = 0; i < nm_ip6_config_get_num_searches (config); i++) {
s = nm_ip6_config_get_search (config, i);
g_checksum_update (sum, (const guint8 *) s, strlen (s));
}
}
/**
* nm_ip6_config_equal:
* @a: first config to compare
* @b: second config to compare
*
* Compares two #NMIP6Configs for basic equality. This means that all
* attributes must exist in the same order in both configs (addresses, routes,
* domains, DNS servers, etc) but some attributes (address lifetimes, and address
* and route sources) are ignored.
*
* Returns: %TRUE if the configurations are basically equal to each other,
* %FALSE if not
*/
gboolean
nm_ip6_config_equal (const NMIP6Config *a, const NMIP6Config *b)
{
GChecksum *a_checksum = g_checksum_new (G_CHECKSUM_SHA1);
GChecksum *b_checksum = g_checksum_new (G_CHECKSUM_SHA1);
gsize a_len = g_checksum_type_get_length (G_CHECKSUM_SHA1);
gsize b_len = g_checksum_type_get_length (G_CHECKSUM_SHA1);
guchar a_data[a_len], b_data[b_len];
gboolean equal;
if (a)
nm_ip6_config_hash (a, a_checksum, FALSE);
if (b)
nm_ip6_config_hash (b, b_checksum, FALSE);
g_checksum_get_digest (a_checksum, a_data, &a_len);
g_checksum_get_digest (b_checksum, b_data, &b_len);
g_assert (a_len == b_len);
equal = !memcmp (a_data, b_data, a_len);
g_checksum_free (a_checksum);
g_checksum_free (b_checksum);
return equal;
}
/******************************************************************/
static void
nm_ip6_config_init (NMIP6Config *config)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config);
priv->addresses = g_array_new (FALSE, TRUE, sizeof (NMPlatformIP6Address));
priv->routes = g_array_new (FALSE, TRUE, sizeof (NMPlatformIP6Route));
priv->nameservers = g_array_new (FALSE, TRUE, sizeof (struct in6_addr));
priv->domains = g_ptr_array_new_with_free_func (g_free);
priv->searches = g_ptr_array_new_with_free_func (g_free);
}
static void
finalize (GObject *object)
{
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (object);
g_array_unref (priv->addresses);
g_array_unref (priv->routes);
g_array_unref (priv->nameservers);
g_ptr_array_unref (priv->domains);
g_ptr_array_unref (priv->searches);
G_OBJECT_CLASS (nm_ip6_config_parent_class)->finalize (object);
}
static void
nameservers_to_gvalue (GArray *array, GValue *value)
{
GPtrArray *dns;
guint i = 0;
dns = g_ptr_array_new ();
while (array && (i < array->len)) {
struct in6_addr *addr;
GByteArray *bytearray;
addr = &g_array_index (array, struct in6_addr, i++);
bytearray = g_byte_array_sized_new (16);
g_byte_array_append (bytearray, (guint8 *) addr->s6_addr, 16);
g_ptr_array_add (dns, bytearray);
}
g_value_take_boxed (value, dns);
}
static void
gvalue_destroy (gpointer data)
{
GValue *value = (GValue *) data;
g_value_unset (value);
g_slice_free (GValue, value);
}
static void
get_property (GObject *object, guint prop_id,
GValue *value, GParamSpec *pspec)
{
NMIP6Config *config = NM_IP6_CONFIG (object);
NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (object);
switch (prop_id) {
case PROP_ADDRESS_DATA:
{
GPtrArray *addresses = g_ptr_array_new ();
int naddr = nm_ip6_config_get_num_addresses (config);
int i;
for (i = 0; i < naddr; i++) {
const NMPlatformIP6Address *address = nm_ip6_config_get_address (config, i);
GHashTable *addr_hash;
GValue *val;
addr_hash = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, gvalue_destroy);
val = g_slice_new0 (GValue);
g_value_init (val, G_TYPE_STRING);
g_value_set_string (val, nm_utils_inet6_ntop (&address->address, NULL));
g_hash_table_insert (addr_hash, "address", val);
val = g_slice_new0 (GValue);
g_value_init (val, G_TYPE_UINT);
g_value_set_uint (val, address->plen);
g_hash_table_insert (addr_hash, "prefix", val);
g_ptr_array_add (addresses, addr_hash);
}
g_value_take_boxed (value, addresses);
}
break;
case PROP_ADDRESSES:
{
GPtrArray *addresses = g_ptr_array_new ();
const struct in6_addr *gateway = nm_ip6_config_get_gateway (config);
int naddr = nm_ip6_config_get_num_addresses (config);
int i;
for (i = 0; i < naddr; i++) {
const NMPlatformIP6Address *address = nm_ip6_config_get_address (config, i);
GValueArray *array = g_value_array_new (3);
GValue element = G_VALUE_INIT;
GByteArray *ba;
/* IP address */
g_value_init (&element, DBUS_TYPE_G_UCHAR_ARRAY);
ba = g_byte_array_new ();
g_byte_array_append (ba, (guint8 *) &address->address, 16);
g_value_take_boxed (&element, ba);
g_value_array_append (array, &element);
g_value_unset (&element);
/* Prefix */
g_value_init (&element, G_TYPE_UINT);
g_value_set_uint (&element, address->plen);
g_value_array_append (array, &element);
g_value_unset (&element);
/* Gateway */
g_value_init (&element, DBUS_TYPE_G_UCHAR_ARRAY);
ba = g_byte_array_new ();
g_byte_array_append (ba, (guint8 *) (i == 0 && gateway ? gateway : &in6addr_any), sizeof (*gateway));
g_value_take_boxed (&element, ba);
g_value_array_append (array, &element);
g_value_unset (&element);
g_ptr_array_add (addresses, array);
}
g_value_take_boxed (value, addresses);
}
break;
case PROP_ROUTE_DATA:
{
GPtrArray *routes = g_ptr_array_new ();
guint nroutes = nm_ip6_config_get_num_routes (config);
int i;
for (i = 0; i < nroutes; i++) {
const NMPlatformIP6Route *route = nm_ip6_config_get_route (config, i);
GHashTable *route_hash;
GValue *val;
route_hash = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, gvalue_destroy);
val = g_slice_new0 (GValue);
g_value_init (val, G_TYPE_STRING);
g_value_set_string (val, nm_utils_inet6_ntop (&route->network, NULL));
g_hash_table_insert (route_hash, "dest", val);
val = g_slice_new0 (GValue);
g_value_init (val, G_TYPE_UINT);
g_value_set_uint (val, route->plen);
g_hash_table_insert (route_hash, "prefix", val);
if (!IN6_IS_ADDR_UNSPECIFIED (&route->gateway)) {
val = g_slice_new0 (GValue);
g_value_init (val, G_TYPE_STRING);
g_value_set_string (val, nm_utils_inet6_ntop (&route->gateway, NULL));
g_hash_table_insert (route_hash, "next-hop", val);
}
val = g_slice_new0 (GValue);
g_value_init (val, G_TYPE_UINT);
g_value_set_uint (val, route->metric);
g_hash_table_insert (route_hash, "metric", val);
g_ptr_array_add (routes, route_hash);
}
g_value_take_boxed (value, routes);
}
break;
case PROP_ROUTES:
{
GPtrArray *routes = g_ptr_array_new ();
int nroutes = nm_ip6_config_get_num_routes (config);
int i;
for (i = 0; i < nroutes; i++) {
GValueArray *array;
const NMPlatformIP6Route *route = nm_ip6_config_get_route (config, i);
GByteArray *ba;
GValue element = G_VALUE_INIT;
/* legacy versions of nm_ip6_route_set_prefix() in libnm-util assert that the
* plen is positive. Skip the default routes not to break older clients. */
if (NM_PLATFORM_IP_ROUTE_IS_DEFAULT (route))
continue;
array = g_value_array_new (4);
g_value_init (&element, DBUS_TYPE_G_UCHAR_ARRAY);
ba = g_byte_array_new ();
g_byte_array_append (ba, (guint8 *) &route->network, sizeof (route->network));
g_value_take_boxed (&element, ba);
g_value_array_append (array, &element);
g_value_unset (&element);
g_value_init (&element, G_TYPE_UINT);
g_value_set_uint (&element, route->plen);
g_value_array_append (array, &element);
g_value_unset (&element);
g_value_init (&element, DBUS_TYPE_G_UCHAR_ARRAY);
ba = g_byte_array_new ();
g_byte_array_append (ba, (guint8 *) &route->gateway, sizeof (route->gateway));
g_value_take_boxed (&element, ba);
g_value_array_append (array, &element);
g_value_unset (&element);
g_value_init (&element, G_TYPE_UINT);
g_value_set_uint (&element, route->metric);
g_value_array_append (array, &element);
g_value_unset (&element);
g_ptr_array_add (routes, array);
}
g_value_take_boxed (value, routes);
}
break;
case PROP_GATEWAY:
if (!IN6_IS_ADDR_UNSPECIFIED (&priv->gateway))
g_value_set_string (value, nm_utils_inet6_ntop (&priv->gateway, NULL));
else
g_value_set_string (value, NULL);
break;
case PROP_NAMESERVERS:
nameservers_to_gvalue (priv->nameservers, value);
break;
case PROP_DOMAINS:
g_value_set_boxed (value, priv->domains);
break;
case PROP_SEARCHES:
g_value_set_boxed (value, priv->searches);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
nm_ip6_config_class_init (NMIP6ConfigClass *config_class)
{
GObjectClass *object_class = G_OBJECT_CLASS (config_class);
g_type_class_add_private (config_class, sizeof (NMIP6ConfigPrivate));
/* virtual methods */
object_class->get_property = get_property;
object_class->finalize = finalize;
/* properties */
obj_properties[PROP_ADDRESS_DATA] =
g_param_spec_boxed (NM_IP6_CONFIG_ADDRESS_DATA, "", "",
DBUS_TYPE_NM_IP_ADDRESSES,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_ADDRESSES] =
g_param_spec_boxed (NM_IP6_CONFIG_ADDRESSES, "", "",
DBUS_TYPE_G_ARRAY_OF_IP6_ADDRESS,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_ROUTE_DATA] =
g_param_spec_boxed (NM_IP6_CONFIG_ROUTE_DATA, "", "",
DBUS_TYPE_NM_IP_ROUTES,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_ROUTES] =
g_param_spec_boxed (NM_IP6_CONFIG_ROUTES, "", "",
DBUS_TYPE_G_ARRAY_OF_IP6_ROUTE,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_GATEWAY] =
g_param_spec_string (NM_IP6_CONFIG_GATEWAY, "", "",
NULL,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_NAMESERVERS] =
g_param_spec_boxed (NM_IP6_CONFIG_NAMESERVERS, "", "",
DBUS_TYPE_G_ARRAY_OF_ARRAY_OF_UCHAR,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_DOMAINS] =
g_param_spec_boxed (NM_IP6_CONFIG_DOMAINS, "", "",
DBUS_TYPE_G_ARRAY_OF_STRING,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_SEARCHES] =
g_param_spec_boxed (NM_IP6_CONFIG_SEARCHES, "", "",
DBUS_TYPE_G_ARRAY_OF_STRING,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (object_class, LAST_PROP, obj_properties);
nm_dbus_manager_register_exported_type (nm_dbus_manager_get (),
G_TYPE_FROM_CLASS (config_class),
&dbus_glib_nm_ip6_config_object_info);
}
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