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NetworkManager/src/nm-route-manager.c

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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) 2015 Red Hat, Inc.
*/
#include "nm-default.h"
#include "nm-route-manager.h"
#include <string.h>
#include "nm-platform.h"
#include "nmp-object.h"
#include "nm-core-internal.h"
#include "NetworkManagerUtils.h"
/* if within half a second after adding an IP address a matching device-route shows
* up, we delete it. */
#define IP4_DEVICE_ROUTES_WAIT_TIME_NS (NM_UTILS_NS_PER_SECOND / 2)
#define IP4_DEVICE_ROUTES_GC_INTERVAL_SEC (IP4_DEVICE_ROUTES_WAIT_TIME_NS * 2)
/*****************************************************************************/
typedef struct {
guint len;
NMPlatformIPXRoute *entries[1];
} RouteIndex;
typedef struct {
GArray *entries;
RouteIndex *index;
/* list of effective metrics. The indexes of the array correspond to @index, not @entries. */
GArray *effective_metrics;
/* this array contains the effective metrics but using the reversed index that corresponds
* to @entries, instead of @index. */
GArray *effective_metrics_reverse;
} RouteEntries;
typedef struct {
NMRouteManager *self;
gint64 scheduled_at_ns;
guint idle_id;
NMPObject *obj;
} IP4DeviceRoutePurgeEntry;
/*****************************************************************************/
NM_GOBJECT_PROPERTIES_DEFINE_BASE (
PROP_PLATFORM,
);
typedef struct {
NMPlatform *platform;
RouteEntries ip4_routes;
RouteEntries ip6_routes;
struct {
GHashTable *entries;
guint gc_id;
} ip4_device_routes;
} NMRouteManagerPrivate;
struct _NMRouteManager {
GObject parent;
NMRouteManagerPrivate _priv;
};
struct _NMRouteManagerClass {
GObjectClass parent;
};
G_DEFINE_TYPE (NMRouteManager, nm_route_manager, G_TYPE_OBJECT);
#define NM_ROUTE_MANAGER_GET_PRIVATE(self) _NM_GET_PRIVATE (self, NMRouteManager, NM_IS_ROUTE_MANAGER)
/*****************************************************************************/
NM_DEFINE_SINGLETON_GETTER (NMRouteManager, nm_route_manager_get, NM_TYPE_ROUTE_MANAGER);
/*****************************************************************************/
typedef struct {
const NMPlatformVTableRoute *vt;
/* a compare function for two routes that considers only the destination fields network/plen.
* It is a looser comparisong then @route_id_cmp(), that means that if @route_dest_cmp()
* returns non-zero, also @route_id_cmp() returns the same value. It also means, that
* sorting by @route_id_cmp() implicitly sorts by @route_dest_cmp() as well. */
int (*route_dest_cmp) (const NMPlatformIPXRoute *r1, const NMPlatformIPXRoute *r2);
/* a compare function for two routes that considers only the fields network/plen,metric. */
int (*route_id_cmp) (const NMPlatformIPXRoute *r1, const NMPlatformIPXRoute *r2);
} VTableIP;
static const VTableIP vtable_v4, vtable_v6;
#define VTABLE_ROUTE_INDEX(vtable, garray, idx) ((NMPlatformIPXRoute *) &((garray)->data[(idx) * (vtable)->vt->sizeof_route]))
#define VTABLE_IS_DEVICE_ROUTE(vtable, route) ((vtable)->vt->is_ip4 \
? ((route)->r4.gateway == 0) \
: IN6_IS_ADDR_UNSPECIFIED (&(route)->r6.gateway) )
#define CMP_AND_RETURN_INT(a, b) \
G_STMT_START { \
typeof(a) _a = (a), _b = (b); \
\
if (_a < _b) \
return -1; \
if (_a > _b) \
return 1; \
} G_STMT_END
/*****************************************************************************/
#define _NMLOG_PREFIX_NAME "route-mgr"
#undef _NMLOG_ENABLED
#define _NMLOG_ENABLED(level, addr_family) \
({ \
const int __addr_family = (addr_family); \
const NMLogLevel __level = (level); \
const NMLogDomain __domain = __addr_family == AF_INET ? LOGD_IP4 : (__addr_family == AF_INET6 ? LOGD_IP6 : LOGD_IP); \
\
nm_logging_enabled (__level, __domain); \
})
#define _NMLOG(level, addr_family, ...) \
G_STMT_START { \
const int __addr_family = (addr_family); \
const NMLogLevel __level = (level); \
const NMLogDomain __domain = __addr_family == AF_INET ? LOGD_IP4 : (__addr_family == AF_INET6 ? LOGD_IP6 : LOGD_IP); \
\
if (nm_logging_enabled (__level, __domain)) { \
char __ch = __addr_family == AF_INET ? '4' : (__addr_family == AF_INET6 ? '6' : '-'); \
char __prefix[30] = _NMLOG_PREFIX_NAME; \
\
if ((self) != singleton_instance) \
g_snprintf (__prefix, sizeof (__prefix), "%s%c[%p]", _NMLOG_PREFIX_NAME, __ch, (self)); \
else \
__prefix[NM_STRLEN (_NMLOG_PREFIX_NAME)] = __ch; \
_nm_log ((level), (__domain), 0, \
"%s: " _NM_UTILS_MACRO_FIRST(__VA_ARGS__), \
__prefix _NM_UTILS_MACRO_REST(__VA_ARGS__)); \
} \
} G_STMT_END
/*****************************************************************************/
static gboolean _ip4_device_routes_cancel (NMRouteManager *self);
/*****************************************************************************/
#if NM_MORE_ASSERTS && !defined (G_DISABLE_ASSERT)
inline static void
ASSERT_route_index_valid (const VTableIP *vtable, const GArray *entries, const RouteIndex *index, gboolean unique_ifindexes)
{
guint i, j;
int c;
const NMPlatformIPXRoute *r1, *r2;
gs_unref_hashtable GHashTable *ptrs = g_hash_table_new (NULL, NULL);
const NMPlatformIPXRoute *r_first = NULL, *r_last = NULL;
g_assert (index);
if (entries)
g_assert_cmpint (entries->len, ==, index->len);
else
g_assert (index->len == 0);
if (index->len > 0) {
r_first = VTABLE_ROUTE_INDEX (vtable, entries, 0);
r_last = VTABLE_ROUTE_INDEX (vtable, entries, index->len - 1);
}
/* assert that the @index is valid for the @entries. */
g_assert (!index->entries[index->len]);
for (i = 0; i < index->len; i++) {
r1 = index->entries[i];
g_assert (r1);
g_assert (r1 >= r_first);
g_assert (r1 <= r_last);
g_assert_cmpint ((((char *) r1) - ((char *) entries->data)) % vtable->vt->sizeof_route, ==, 0);
g_assert (!g_hash_table_contains (ptrs, (gpointer) r1));
g_hash_table_add (ptrs, (gpointer) r1);
for (j = i; j > 0; ) {
r2 = index->entries[--j];
c = vtable->route_id_cmp (r1, r2);
g_assert (c >= 0);
if (c != 0)
break;
if (unique_ifindexes)
g_assert_cmpint (r1->rx.ifindex, !=, r2->rx.ifindex);
}
}
}
#else
#define ASSERT_route_index_valid(vtable, entries, index, unique_ifindexes) G_STMT_START { (void) 0; } G_STMT_END
#endif
/*****************************************************************************/
static int
_v4_route_dest_cmp (const NMPlatformIP4Route *r1, const NMPlatformIP4Route *r2)
{
CMP_AND_RETURN_INT (r1->plen, r2->plen);
CMP_AND_RETURN_INT (nm_utils_ip4_address_clear_host_address (r1->network, r1->plen),
nm_utils_ip4_address_clear_host_address (r2->network, r2->plen));
return 0;
}
static int
_v6_route_dest_cmp (const NMPlatformIP6Route *r1, const NMPlatformIP6Route *r2)
{
struct in6_addr n1, n2;
CMP_AND_RETURN_INT (r1->plen, r2->plen);
nm_utils_ip6_address_clear_host_address (&n1, &r1->network, r1->plen);
nm_utils_ip6_address_clear_host_address (&n2, &r2->network, r2->plen );
return memcmp (&n1, &n2, sizeof (n1));
}
static int
_v4_route_id_cmp (const NMPlatformIP4Route *r1, const NMPlatformIP4Route *r2)
{
CMP_AND_RETURN_INT (r1->plen, r2->plen);
CMP_AND_RETURN_INT (nm_utils_ip4_address_clear_host_address (r1->network, r1->plen),
nm_utils_ip4_address_clear_host_address (r2->network, r2->plen));
CMP_AND_RETURN_INT (r1->metric, r2->metric);
return 0;
}
static int
_v6_route_id_cmp (const NMPlatformIP6Route *r1, const NMPlatformIP6Route *r2)
{
struct in6_addr n1, n2;
int c;
CMP_AND_RETURN_INT (r1->plen, r2->plen);
nm_utils_ip6_address_clear_host_address (&n1, &r1->network, r1->plen);
nm_utils_ip6_address_clear_host_address (&n2, &r2->network, r2->plen);
c = memcmp (&n1, &n2, sizeof (n1));
if (c != 0)
return c;
CMP_AND_RETURN_INT (nm_utils_ip6_route_metric_normalize (r1->metric),
nm_utils_ip6_route_metric_normalize (r2->metric));
return 0;
}
/*****************************************************************************/
static int
_route_index_create_sort (const NMPlatformIPXRoute **p1, const NMPlatformIPXRoute ** p2, const VTableIP *vtable)
{
return vtable->route_id_cmp (*p1, *p2);
}
static RouteIndex *
_route_index_create (const VTableIP *vtable, const GArray *routes)
{
RouteIndex *index;
guint i;
guint len = routes ? routes->len : 0;
index = g_malloc (sizeof (RouteIndex) + len * sizeof (NMPlatformIPXRoute *));
index->len = len;
for (i = 0; i < len; i++)
index->entries[i] = VTABLE_ROUTE_INDEX (vtable, routes, i);
index->entries[i] = NULL;
/* this is a stable sort, which is very important at this point. */
g_qsort_with_data (index->entries,
len,
sizeof (NMPlatformIPXRoute *),
(GCompareDataFunc) _route_index_create_sort,
(gpointer) vtable);
return index;
}
static int
_vx_route_id_cmp_full (const NMPlatformIPXRoute *r1, const NMPlatformIPXRoute *r2, const VTableIP *vtable)
{
return vtable->route_id_cmp (r1, r2);
}
static gssize
_route_index_find (const VTableIP *vtable, const RouteIndex *index, const NMPlatformIPXRoute *needle)
{
gssize idx, idx2;
idx = _nm_utils_ptrarray_find_binary_search ((gconstpointer *) index->entries, index->len, needle, (GCompareDataFunc) _vx_route_id_cmp_full, (gpointer) vtable);
if (idx < 0)
return idx;
/* we only know that the route at index @idx has matching destination. Also find the one with the right
* ifindex by searching the neighbours */
idx2 = idx;
do {
if (index->entries[idx2]->rx.ifindex == needle->rx.ifindex)
return idx2;
} while ( idx2 > 0
&& vtable->route_id_cmp (index->entries[--idx2], needle) != 0);
for (idx++; idx < index->len; idx++ ){
if (vtable->route_id_cmp (index->entries[idx], needle) != 0)
break;
if (index->entries[idx]->rx.ifindex == needle->rx.ifindex)
return idx;
}
return ~idx;
}
static guint
_route_index_reverse_idx (const VTableIP *vtable, const RouteIndex *index, guint idx_idx, const GArray *routes)
{
const NMPlatformIPXRoute *r, *r0;
gssize offset;
/* reverse the @idx_idx that points into @index, to the corresponding index into the unsorted @routes array. */
r = index->entries[idx_idx];
r0 = VTABLE_ROUTE_INDEX (vtable, routes, 0);
if (vtable->vt->is_ip4)
offset = &r->r4 - &r0->r4;
else
offset = &r->r6 - &r0->r6;
g_assert (offset >= 0 && offset < index->len);
g_assert (VTABLE_ROUTE_INDEX (vtable, routes, offset) == r);
return offset;
}
/*****************************************************************************/
static gboolean
_route_equals_ignoring_ifindex (const VTableIP *vtable, const NMPlatformIPXRoute *r1, const NMPlatformIPXRoute *r2, gint64 r2_metric)
{
NMPlatformIPXRoute r2_backup;
if ( r1->rx.ifindex != r2->rx.ifindex
|| (r2_metric >= 0 && ((guint32) r2_metric) != r2->rx.metric)) {
memcpy (&r2_backup, r2, vtable->vt->sizeof_route);
r2_backup.rx.ifindex = r1->rx.ifindex;
if (r2_metric >= 0)
r2_backup.rx.metric = (guint32) r2_metric;
r2 = &r2_backup;
}
return vtable->vt->route_cmp (r1, r2) == 0;
}
static NMPlatformIPXRoute *
_get_next_ipx_route (const RouteIndex *index, gboolean start_at_zero, guint *cur_idx, int ifindex)
{
guint i;
if (start_at_zero)
i = 0;
else
i = *cur_idx + 1;
/* Find the next route with matching @ifindex. */
for (; i < index->len; i++) {
if (index->entries[i]->rx.ifindex == ifindex) {
*cur_idx = i;
return index->entries[i];
}
}
*cur_idx = index->len;
return NULL;
}
static const NMPlatformIPXRoute *
_get_next_known_route (const VTableIP *vtable, const RouteIndex *index, gboolean start_at_zero, guint *cur_idx)
{
guint i = 0;
const NMPlatformIPXRoute *cur = NULL;
if (!start_at_zero) {
i = *cur_idx;
cur = index->entries[i];
i++;
}
/* For @known_routes we expect that all routes have the same @ifindex. This is not enforced however,
* the ifindex value of these routes is ignored. */
for (; i < index->len; i++) {
const NMPlatformIPXRoute *r = index->entries[i];
/* skip over default routes. */
if (NM_PLATFORM_IP_ROUTE_IS_DEFAULT (r))
continue;
/* @known_routes should not, but could contain duplicate routes. Skip over them. */
if (cur && vtable->route_id_cmp (cur, r) == 0)
continue;
*cur_idx = i;
return r;
}
*cur_idx = index->len;
return NULL;
}
static const NMPlatformIPXRoute *
_get_next_plat_route (const RouteIndex *index, gboolean start_at_zero, guint *cur_idx)
{
if (start_at_zero)
*cur_idx = 0;
else
++*cur_idx;
/* get next route from the platform index. */
if (*cur_idx < index->len)
return index->entries[*cur_idx];
*cur_idx = index->len;
return NULL;
}
static int
_sort_indexes_cmp (guint *a, guint *b)
{
CMP_AND_RETURN_INT (*a, *b);
g_return_val_if_reached (0);
}
/*****************************************************************************/
static gboolean
_vx_route_sync (const VTableIP *vtable, NMRouteManager *self, int ifindex, const GArray *known_routes, gboolean ignore_kernel_routes, gboolean full_sync)
{
NMRouteManagerPrivate *priv = NM_ROUTE_MANAGER_GET_PRIVATE (self);
GArray *plat_routes;
RouteEntries *ipx_routes;
RouteIndex *plat_routes_idx, *known_routes_idx;
gboolean success = TRUE;
guint i, i_type;
GArray *to_delete_indexes = NULL;
GPtrArray *to_add_routes = NULL;
guint i_known_routes, i_plat_routes, i_ipx_routes;
const NMPlatformIPXRoute *cur_known_route, *cur_plat_route;
NMPlatformIPXRoute *cur_ipx_route;
gint64 *p_effective_metric = NULL;
gboolean ipx_routes_changed = FALSE;
gint64 *effective_metrics = NULL;
nm_platform_process_events (priv->platform);
ipx_routes = vtable->vt->is_ip4 ? &priv->ip4_routes : &priv->ip6_routes;
plat_routes = vtable->vt->route_get_all (priv->platform, ifindex,
ignore_kernel_routes
? NM_PLATFORM_GET_ROUTE_FLAGS_WITH_NON_DEFAULT
: NM_PLATFORM_GET_ROUTE_FLAGS_WITH_NON_DEFAULT | NM_PLATFORM_GET_ROUTE_FLAGS_WITH_RTPROT_KERNEL);
plat_routes_idx = _route_index_create (vtable, plat_routes);
known_routes_idx = _route_index_create (vtable, known_routes);
effective_metrics = &g_array_index (ipx_routes->effective_metrics, gint64, 0);
ASSERT_route_index_valid (vtable, plat_routes, plat_routes_idx, TRUE);
ASSERT_route_index_valid (vtable, known_routes, known_routes_idx, FALSE);
_LOGD (vtable->vt->addr_family, "%3d: sync %u IPv%c routes", ifindex, known_routes_idx->len, vtable->vt->is_ip4 ? '4' : '6');
if (_LOGt_ENABLED (vtable->vt->addr_family)) {
for (i = 0; i < known_routes_idx->len; i++) {
_LOGt (vtable->vt->addr_family, "%3d: sync new route #%u: %s",
ifindex, i, vtable->vt->route_to_string (VTABLE_ROUTE_INDEX (vtable, known_routes, i), NULL, 0));
}
for (i = 0; i < ipx_routes->index->len; i++)
_LOGt (vtable->vt->addr_family, "%3d: STATE: has #%u - %s (%lld)",
ifindex, i,
vtable->vt->route_to_string (ipx_routes->index->entries[i], NULL, 0),
(long long) g_array_index (ipx_routes->effective_metrics, gint64, i));
}
/***************************************************************************
* Check which routes are in @known_routes, and update @ipx_routes.
*
* This first part only updates @ipx_routes to find out what routes must
* be added/deleted.
**************************************************************************/
/* iterate over @ipx_routes and @known_routes */
cur_ipx_route = _get_next_ipx_route (ipx_routes->index, TRUE, &i_ipx_routes, ifindex);
cur_known_route = _get_next_known_route (vtable, known_routes_idx, TRUE, &i_known_routes);
while (cur_ipx_route || cur_known_route) {
int route_id_cmp_result = -1;
while ( cur_ipx_route
&& ( !cur_known_route
|| ((route_id_cmp_result = vtable->route_id_cmp (cur_ipx_route, cur_known_route)) < 0))) {
/* we have @cur_ipx_route, which is less then @cur_known_route. Hence,
* the route does no longer exist in @known_routes */
if (!to_delete_indexes)
to_delete_indexes = g_array_new (FALSE, FALSE, sizeof (guint));
g_array_append_val (to_delete_indexes, i_ipx_routes);
/* find the next @cur_ipx_route with matching ifindex. */
cur_ipx_route = _get_next_ipx_route (ipx_routes->index, FALSE, &i_ipx_routes, ifindex);
}
if ( cur_ipx_route
&& cur_known_route
&& route_id_cmp_result == 0) {
if (!_route_equals_ignoring_ifindex (vtable, cur_ipx_route, cur_known_route, -1)) {
/* The routes match. Update the entry in place. As this is an exact match of primary
* fields, this only updates possibly modified fields such as @gateway or @mss.
* Modifiying @cur_ipx_route this way does not invalidate @ipx_routes->index. */
memcpy (cur_ipx_route, cur_known_route, vtable->vt->sizeof_route);
cur_ipx_route->rx.ifindex = ifindex;
cur_ipx_route->rx.metric = vtable->vt->metric_normalize (cur_ipx_route->rx.metric);
ipx_routes_changed = TRUE;
_LOGt (vtable->vt->addr_family, "%3d: STATE: update #%u - %s", ifindex, i_ipx_routes,
vtable->vt->route_to_string (cur_ipx_route, NULL, 0));
}
} else if (cur_known_route) {
g_assert (!cur_ipx_route || route_id_cmp_result > 0);
/* @cur_known_route is new. We cannot immediately add @cur_known_route to @ipx_routes, because
* it would invalidate @ipx_routes->index. Instead remember to add it later. */
if (!to_add_routes)
to_add_routes = g_ptr_array_new ();
g_ptr_array_add (to_add_routes, (gpointer) cur_known_route);
}
if (cur_ipx_route && (!cur_known_route || route_id_cmp_result == 0))
cur_ipx_route = _get_next_ipx_route (ipx_routes->index, FALSE, &i_ipx_routes, ifindex);
if (cur_known_route)
cur_known_route = _get_next_known_route (vtable, known_routes_idx, FALSE, &i_known_routes);
}
if (!full_sync && to_delete_indexes) {
/***************************************************************************
* Delete routes in platform, that we are about to remove from @ipx_routes
*
* When doing a non-full_sync, we delete routes from platform that were previously
* known by route-manager, and are now deleted.
***************************************************************************/
/* iterate over @to_delete_indexes and @plat_routes.
* @to_delete_indexes contains the indexes (relative to ipx_routes->index) of items
* we are about to delete. */
cur_plat_route = _get_next_plat_route (plat_routes_idx, TRUE, &i_plat_routes);
for (i = 0; i < to_delete_indexes->len; i++) {
int route_dest_cmp_result = 0;
i_ipx_routes = g_array_index (to_delete_indexes, guint, i);
cur_ipx_route = ipx_routes->index->entries[i_ipx_routes];
p_effective_metric = &effective_metrics[i_ipx_routes];
nm_assert (cur_ipx_route->rx.ifindex == ifindex);
if (*p_effective_metric == -1)
continue;
/* skip over @plat_routes that are ordered before our @cur_ipx_route. */
while ( cur_plat_route
&& (route_dest_cmp_result = vtable->route_dest_cmp (cur_plat_route, cur_ipx_route)) <= 0) {
if ( route_dest_cmp_result == 0
&& cur_plat_route->rx.metric >= *p_effective_metric)
break;
cur_plat_route = _get_next_plat_route (plat_routes_idx, FALSE, &i_plat_routes);
}
if (!cur_plat_route) {
/* no more platform routes. Break the loop. */
break;
}
if ( route_dest_cmp_result == 0
&& cur_plat_route->rx.metric == *p_effective_metric) {
/* we are about to delete cur_ipx_route and we have a matching route
* in platform. Delete it. */
_LOGt (vtable->vt->addr_family, "%3d: platform rt-rm #%u - %s", ifindex, i_plat_routes,
vtable->vt->route_to_string (cur_plat_route, NULL, 0));
vtable->vt->route_delete (priv->platform, ifindex, cur_plat_route);
}
}
}
/* Update @ipx_routes with the just learned changes. */
if (to_delete_indexes || to_add_routes) {
if (to_delete_indexes) {
for (i = 0; i < to_delete_indexes->len; i++) {
guint idx = g_array_index (to_delete_indexes, guint, i);
_LOGt (vtable->vt->addr_family, "%3d: STATE: delete #%u - %s", ifindex, idx,
vtable->vt->route_to_string (ipx_routes->index->entries[idx], NULL, 0));
g_array_index (to_delete_indexes, guint, i) = _route_index_reverse_idx (vtable, ipx_routes->index, idx, ipx_routes->entries);
}
g_array_sort (to_delete_indexes, (GCompareFunc) _sort_indexes_cmp);
nm_utils_array_remove_at_indexes (ipx_routes->entries, &g_array_index (to_delete_indexes, guint, 0), to_delete_indexes->len);
nm_utils_array_remove_at_indexes (ipx_routes->effective_metrics_reverse, &g_array_index (to_delete_indexes, guint, 0), to_delete_indexes->len);
g_array_unref (to_delete_indexes);
}
if (to_add_routes) {
guint j = ipx_routes->effective_metrics_reverse->len;
g_array_set_size (ipx_routes->effective_metrics_reverse, j + to_add_routes->len);
for (i = 0; i < to_add_routes->len; i++) {
NMPlatformIPXRoute *ipx_route;
g_array_append_vals (ipx_routes->entries, g_ptr_array_index (to_add_routes, i), 1);
ipx_route = VTABLE_ROUTE_INDEX (vtable, ipx_routes->entries, ipx_routes->entries->len - 1);
ipx_route->rx.ifindex = ifindex;
ipx_route->rx.metric = vtable->vt->metric_normalize (ipx_route->rx.metric);
g_array_index (ipx_routes->effective_metrics_reverse, gint64, j++) = -1;
_LOGt (vtable->vt->addr_family, "%3d: STATE: added #%u - %s", ifindex, ipx_routes->entries->len - 1,
vtable->vt->route_to_string (ipx_route, NULL, 0));
}
g_ptr_array_unref (to_add_routes);
}
g_free (ipx_routes->index);
ipx_routes->index = _route_index_create (vtable, ipx_routes->entries);
ipx_routes_changed = TRUE;
ASSERT_route_index_valid (vtable, ipx_routes->entries, ipx_routes->index, TRUE);
}
if (ipx_routes_changed) {
/***************************************************************************
* Rebuild the list of effective metrics. In case of conflicting routes,
* we configure device routes with a bumped metric. We do this, because non-direct
* routes might require this direct route to reach the gateway (e.g. the default
* route).
*
* We determine the effective metrics only based on our internal list @ipx_routes
* and don't consider @plat_routes. That means, we might bump the metric of a route
* and thereby cause a conflict with an existing route on an unmanaged device (which
* causes the route on the unmanaged device to be replaced).
* Still, that is not much different then from messing with unmanaged routes when
* the effective and the intended metrics equal. The rules is: NM will leave routes
* on unmanaged devices alone, unless they conflict with what NM wants to configure.
***************************************************************************/
g_array_set_size (ipx_routes->effective_metrics, ipx_routes->entries->len);
effective_metrics = &g_array_index (ipx_routes->effective_metrics, gint64, 0);
/* Completely regenerate the list of effective metrics by walking through
* ipx_routes->index and determining the effective metric. */
for (i_ipx_routes = 0; i_ipx_routes < ipx_routes->index->len; i_ipx_routes++) {
gint64 *p_effective_metric_before;
gboolean is_shadowed;
guint i_ipx_routes_before;
cur_ipx_route = ipx_routes->index->entries[i_ipx_routes];
p_effective_metric = &effective_metrics[i_ipx_routes];
is_shadowed = i_ipx_routes > 0
&& vtable->route_dest_cmp (cur_ipx_route, ipx_routes->index->entries[i_ipx_routes - 1]) == 0;
if (!is_shadowed) {
/* the route is not shadowed, the effective metric is just as specified. */
*p_effective_metric = cur_ipx_route->rx.metric;
goto next;
}
if (!VTABLE_IS_DEVICE_ROUTE (vtable, cur_ipx_route)) {
/* The route is not a device route. We want to add redundant device routes, because
* we might need the direct routes to the gateway. For non-direct routes, there is not much
* reason to do the metric increment. */
*p_effective_metric = -1;
goto next;
}
/* The current route might be shadowed by several other routes. Find the one with the highest metric,
* i.e. the one with an effecive metric set and in the index before the current index. */
i_ipx_routes_before = i_ipx_routes;
while (TRUE) {
nm_assert (i_ipx_routes_before > 0);
i_ipx_routes_before--;
p_effective_metric_before = &effective_metrics[i_ipx_routes_before];
if (*p_effective_metric_before == -1) {
/* this route is also shadowed, continue search. */
continue;
}
if (*p_effective_metric_before < cur_ipx_route->rx.metric) {
/* the previous route has a lower metric. There is no conflict,
* just use the original metric. */
*p_effective_metric = cur_ipx_route->rx.metric;
} else if (*p_effective_metric_before == G_MAXUINT32) {
/* we cannot bump the metric. Don't configure this route. */
*p_effective_metric = -1;
} else {
/* bump the metric by one. */
*p_effective_metric = *p_effective_metric_before + 1;
}
break;
}
next:
_LOGt (vtable->vt->addr_family, "%3d: new metric #%u - %s (%lld)",
ifindex, i_ipx_routes,
vtable->vt->route_to_string (cur_ipx_route, NULL, 0),
(long long) *p_effective_metric);
}
}
if (full_sync) {
/***************************************************************************
* Delete all routes in platform, that no longer exist in @ipx_routes
*
* Different from the delete action above, we delete every unknown route on
* the interface.
***************************************************************************/
/* iterate over @plat_routes and @ipx_routes */
cur_plat_route = _get_next_plat_route (plat_routes_idx, TRUE, &i_plat_routes);
cur_ipx_route = _get_next_ipx_route (ipx_routes->index, TRUE, &i_ipx_routes, ifindex);
if (cur_ipx_route)
p_effective_metric = &effective_metrics[i_ipx_routes];
while (cur_plat_route) {
int route_dest_cmp_result = 0;
g_assert (cur_plat_route->rx.ifindex == ifindex);
_LOGt (vtable->vt->addr_family, "%3d: platform rt #%u - %s", ifindex, i_plat_routes, vtable->vt->route_to_string (cur_plat_route, NULL, 0));
/* skip over @cur_ipx_route that are ordered before @cur_plat_route */
while ( cur_ipx_route
&& ((route_dest_cmp_result = vtable->route_dest_cmp (cur_ipx_route, cur_plat_route)) <= 0)) {
if ( route_dest_cmp_result == 0
&& *p_effective_metric != -1
&& *p_effective_metric >= cur_plat_route->rx.metric) {
break;
}
cur_ipx_route = _get_next_ipx_route (ipx_routes->index, FALSE, &i_ipx_routes, ifindex);
if (cur_ipx_route)
p_effective_metric = &effective_metrics[i_ipx_routes];
}
/* if @cur_ipx_route is not equal to @plat_route, the route must be deleted. */
if ( !cur_ipx_route
|| route_dest_cmp_result != 0
|| *p_effective_metric != cur_plat_route->rx.metric)
vtable->vt->route_delete (priv->platform, ifindex, cur_plat_route);
cur_plat_route = _get_next_plat_route (plat_routes_idx, FALSE, &i_plat_routes);
}
}
/***************************************************************************
* Restore shadowed routes. These routes are on an other @ifindex then what
* we are syncing now. But the current changes make it necessary to add those
* routes.
*
* Only add some routes that might be necessary. We don't delete any routes
* on other ifindexes here. I.e. we don't do a full sync, but only ~add~ routes
* that were shadowed previously, but should be now present with a different
* metric.
**************************************************************************/
if (ipx_routes_changed) {
GArray *gateway_routes = NULL;
/* @effective_metrics_reverse contains the list of assigned metrics from the last
* sync. Walk through it and see what changes there are (and possibly restore a
* shadowed route).
* Thereby also update @effective_metrics_reverse to be up-to-date again. */
for (i_ipx_routes = 0; i_ipx_routes < ipx_routes->entries->len; i_ipx_routes++) {
guint i_ipx_routes_reverse;
gint64 *p_effective_metric_reversed;
p_effective_metric = &effective_metrics[i_ipx_routes];
i_ipx_routes_reverse = _route_index_reverse_idx (vtable, ipx_routes->index, i_ipx_routes, ipx_routes->entries);
p_effective_metric_reversed = &g_array_index (ipx_routes->effective_metrics_reverse, gint64, i_ipx_routes_reverse);
if (*p_effective_metric_reversed == *p_effective_metric) {
/* The entry is up to date. No change, continue with the next one. */
continue;
}
*p_effective_metric_reversed = *p_effective_metric;
if (*p_effective_metric == -1) {
/* the entry is shadowed. Nothing to do. */
continue;
}
cur_ipx_route = ipx_routes->index->entries[i_ipx_routes];
if (cur_ipx_route->rx.ifindex == ifindex) {
/* @cur_ipx_route is on the current @ifindex. No need to special handling them
* because we are about to do a full sync of the ifindex. */
continue;
}
/* the effective metric from previous sync changed. While @cur_ipx_route is not on the
* ifindex we are about to sync, we still must add this route. Possibly it was shadowed
* before, and now we want to restore it.
*
* Note that we don't do a full sync on the other ifindex. Especially, we don't delete
* or add any further routes then this. That means there might be some stale routes
* (with a higher metric!). They will only be removed on the next sync of that other
* ifindex. */
if (!VTABLE_IS_DEVICE_ROUTE (vtable, cur_ipx_route)) {
/* the route to restore has a gateway. We can only restore the route
* when we also have a direct route to the gateway. There can be cases
* where the direct route is shadowed too, and we cannot restore the gateway
* route.
*
* Restore first the direct-routes, and gateway-routes afterwards.
* This can avoid some cases where we would fail to add the
* gateway route. */
if (!gateway_routes)
gateway_routes = g_array_new (FALSE, FALSE, sizeof (guint));
g_array_append_val (gateway_routes, i_ipx_routes);
} else
vtable->vt->route_add (priv->platform, 0, cur_ipx_route, *p_effective_metric);
}
if (gateway_routes) {
for (i = 0; i < gateway_routes->len; i++) {
i_ipx_routes = g_array_index (gateway_routes, guint, i);
vtable->vt->route_add (priv->platform, 0,
ipx_routes->index->entries[i_ipx_routes],
effective_metrics[i_ipx_routes]);
}
g_array_unref (gateway_routes);
}
}
/***************************************************************************
* Sync @ipx_routes for @ifindex to platform
**************************************************************************/
for (i_type = 0; i_type < 2; i_type++) {
/* iterate (twice) over @ipx_routes and @plat_routes */
cur_plat_route = _get_next_plat_route (plat_routes_idx, TRUE, &i_plat_routes);
cur_ipx_route = _get_next_ipx_route (ipx_routes->index, TRUE, &i_ipx_routes, ifindex);
/* Iterate here over @ipx_routes instead of @known_routes. That is done because
* we need to know whether a route is shadowed by another route, and that
* requires to look at @ipx_routes. */
for (; cur_ipx_route; cur_ipx_route = _get_next_ipx_route (ipx_routes->index, FALSE, &i_ipx_routes, ifindex)) {
int route_dest_cmp_result = -1;
if ( (i_type == 0 && !VTABLE_IS_DEVICE_ROUTE (vtable, cur_ipx_route))
|| (i_type == 1 && VTABLE_IS_DEVICE_ROUTE (vtable, cur_ipx_route))) {
/* Make two runs over the list of @ipx_routes. On the first, only add
* device routes, on the second the others (gateway routes). */
continue;
}
p_effective_metric = &effective_metrics[i_ipx_routes];
if (*p_effective_metric == -1) {
/* @cur_ipx_route is shadewed by another route. */
continue;
}
/* skip over @plat_routes that are ordered before our @cur_ipx_route. */
while ( cur_plat_route
&& (route_dest_cmp_result = vtable->route_dest_cmp (cur_plat_route, cur_ipx_route)) <= 0) {
if ( route_dest_cmp_result == 0
&& cur_plat_route->rx.metric >= *p_effective_metric)
break;
cur_plat_route = _get_next_plat_route (plat_routes_idx, FALSE, &i_plat_routes);
}
/* only add the route if we don't have an identical route in @plat_routes,
* i.e. if @cur_plat_route is different from @cur_ipx_route. */
if ( !cur_plat_route
|| route_dest_cmp_result != 0
|| !_route_equals_ignoring_ifindex (vtable, cur_plat_route, cur_ipx_route, *p_effective_metric)) {
if (!vtable->vt->route_add (priv->platform, ifindex, cur_ipx_route, *p_effective_metric)) {
if (cur_ipx_route->rx.rt_source < NM_IP_CONFIG_SOURCE_USER) {
_LOGD (vtable->vt->addr_family,
"ignore error adding IPv%c route to kernel: %s",
vtable->vt->is_ip4 ? '4' : '6',
vtable->vt->route_to_string (cur_ipx_route, NULL, 0));
} else {
/* Remember that there was a failure, but for now continue trying
* to sync the remaining routes. */
success = FALSE;
}
}
}
}
}
g_free (known_routes_idx);
g_free (plat_routes_idx);
g_array_unref (plat_routes);
return success;
}
/**
* nm_route_manager_ip4_route_sync:
* @ifindex: Interface index
* @known_routes: List of routes
* @ignore_kernel_routes: if %TRUE, ignore kernel routes.
* @full_sync: whether to do a full sync and delete routes
* that are configured on the interface but not currently
* tracked by route-manager.
*
* A convenience function to synchronize routes for a specific interface
* with the least possible disturbance. It simply removes routes that are
* not listed and adds routes that are.
* Default routes are ignored (both in @known_routes and those already
* configured on the device).
*
* Returns: %TRUE on success.
*/
gboolean
nm_route_manager_ip4_route_sync (NMRouteManager *self, int ifindex, const GArray *known_routes, gboolean ignore_kernel_routes, gboolean full_sync)
{
return _vx_route_sync (&vtable_v4, self, ifindex, known_routes, ignore_kernel_routes, full_sync);
}
/**
* nm_route_manager_ip6_route_sync:
* @ifindex: Interface index
* @known_routes: List of routes
* @ignore_kernel_routes: if %TRUE, ignore kernel routes.
* @full_sync: whether to do a full sync and delete routes
* that are configured on the interface but not currently
* tracked by route-manager.
*
* A convenience function to synchronize routes for a specific interface
* with the least possible disturbance. It simply removes routes that are
* not listed and adds routes that are.
* Default routes are ignored (both in @known_routes and those already
* configured on the device).
*
* Returns: %TRUE on success.
*/
gboolean
nm_route_manager_ip6_route_sync (NMRouteManager *self, int ifindex, const GArray *known_routes, gboolean ignore_kernel_routes, gboolean full_sync)
{
return _vx_route_sync (&vtable_v6, self, ifindex, known_routes, ignore_kernel_routes, full_sync);
}
gboolean
nm_route_manager_route_flush (NMRouteManager *self, int ifindex)
{
bool success = TRUE;
success &= (bool) nm_route_manager_ip4_route_sync (self, ifindex, NULL, FALSE, TRUE);
success &= (bool) nm_route_manager_ip6_route_sync (self, ifindex, NULL, FALSE, TRUE);
return success;
}
/*****************************************************************************/
static gboolean
_ip4_device_routes_entry_expired (const IP4DeviceRoutePurgeEntry *entry, gint64 now)
{
return entry->scheduled_at_ns + IP4_DEVICE_ROUTES_WAIT_TIME_NS < now;
}
static IP4DeviceRoutePurgeEntry *
_ip4_device_routes_purge_entry_create (NMRouteManager *self, const NMPlatformIP4Route *route, gint64 now_ns)
{
IP4DeviceRoutePurgeEntry *entry;
entry = g_slice_new (IP4DeviceRoutePurgeEntry);
entry->self = self;
entry->scheduled_at_ns = now_ns;
entry->idle_id = 0;
entry->obj = nmp_object_new (NMP_OBJECT_TYPE_IP4_ROUTE, (NMPlatformObject *) route);
return entry;
}
static void
_ip4_device_routes_purge_entry_free (IP4DeviceRoutePurgeEntry *entry)
{
nmp_object_unref (entry->obj);
nm_clear_g_source (&entry->idle_id);
g_slice_free (IP4DeviceRoutePurgeEntry, entry);
}
static gboolean
_ip4_device_routes_idle_cb (IP4DeviceRoutePurgeEntry *entry)
{
NMRouteManager *self;
NMRouteManagerPrivate *priv;
nm_clear_g_source (&entry->idle_id);
self = entry->self;
priv = NM_ROUTE_MANAGER_GET_PRIVATE (self);
if (_route_index_find (&vtable_v4, priv->ip4_routes.index, &entry->obj->ipx_route) >= 0) {
/* we have an identical route in our list. Don't delete it. */
return G_SOURCE_REMOVE;
}
_LOGt (vtable_v4.vt->addr_family, "device-route: delete %s", nmp_object_to_string (entry->obj, NMP_OBJECT_TO_STRING_PUBLIC, NULL, 0));
nm_platform_ip4_route_delete (priv->platform,
entry->obj->ip4_route.ifindex,
entry->obj->ip4_route.network,
entry->obj->ip4_route.plen,
entry->obj->ip4_route.metric);
g_hash_table_remove (priv->ip4_device_routes.entries, entry->obj);
_ip4_device_routes_cancel (self);
return G_SOURCE_REMOVE;
}
static void
_ip4_device_routes_ip4_route_changed (NMPlatform *platform,
int obj_type_i,
int ifindex,
const NMPlatformIP4Route *route,
int change_type_i,
NMRouteManager *self)
{
const NMPlatformSignalChangeType change_type = change_type_i;
NMRouteManagerPrivate *priv;
NMPObject obj_needle;
IP4DeviceRoutePurgeEntry *entry;
if (change_type == NM_PLATFORM_SIGNAL_REMOVED)
return;
if ( route->rt_source != NM_IP_CONFIG_SOURCE_RTPROT_KERNEL
|| route->metric != 0) {
/* we don't have an automatically created device route at hand. Bail out early. */
return;
}
priv = NM_ROUTE_MANAGER_GET_PRIVATE (self);
entry = g_hash_table_lookup (priv->ip4_device_routes.entries,
nmp_object_stackinit (&obj_needle, NMP_OBJECT_TYPE_IP4_ROUTE, (NMPlatformObject *) route));
if (!entry)
return;
if (_ip4_device_routes_entry_expired (entry, nm_utils_get_monotonic_timestamp_ns ())) {
_LOGt (vtable_v4.vt->addr_family, "device-route: cleanup-ch %s", nmp_object_to_string (entry->obj, NMP_OBJECT_TO_STRING_PUBLIC, NULL, 0));
g_hash_table_remove (priv->ip4_device_routes.entries, entry->obj);
_ip4_device_routes_cancel (self);
return;
}
if (entry->idle_id == 0) {
_LOGt (vtable_v4.vt->addr_family, "device-route: schedule %s", nmp_object_to_string (entry->obj, NMP_OBJECT_TO_STRING_PUBLIC, NULL, 0));
entry->idle_id = g_idle_add ((GSourceFunc) _ip4_device_routes_idle_cb, entry);
}
}
static gboolean
_ip4_device_routes_cancel (NMRouteManager *self)
{
NMRouteManagerPrivate *priv = NM_ROUTE_MANAGER_GET_PRIVATE (self);
if (priv->ip4_device_routes.gc_id) {
if (g_hash_table_size (priv->ip4_device_routes.entries) > 0)
return G_SOURCE_CONTINUE;
_LOGt (vtable_v4.vt->addr_family, "device-route: cancel");
if (priv->platform)
g_signal_handlers_disconnect_by_func (priv->platform, G_CALLBACK (_ip4_device_routes_ip4_route_changed), self);
nm_clear_g_source (&priv->ip4_device_routes.gc_id);
}
return G_SOURCE_REMOVE;
}
static gboolean
_ip4_device_routes_gc (NMRouteManager *self)
{
NMRouteManagerPrivate *priv;
GHashTableIter iter;
IP4DeviceRoutePurgeEntry *entry;
gint64 now = nm_utils_get_monotonic_timestamp_ns ();
priv = NM_ROUTE_MANAGER_GET_PRIVATE (self);
g_hash_table_iter_init (&iter, priv->ip4_device_routes.entries);
while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &entry)) {
if (_ip4_device_routes_entry_expired (entry, now)) {
_LOGt (vtable_v4.vt->addr_family, "device-route: cleanup-gc %s", nmp_object_to_string (entry->obj, NMP_OBJECT_TO_STRING_PUBLIC, NULL, 0));
g_hash_table_iter_remove (&iter);
}
}
return _ip4_device_routes_cancel (self);
}
/**
* nm_route_manager_ip4_route_register_device_route_purge_list:
*
* When adding an IPv4 address, kernel will automatically add a device route with
* metric zero. We don't want that route and want to delete it. However, the route
* by kernel immediately, but some time after. That means during nm_route_manager_ip4_route_sync()
* such a route doesn't exist yet. We must remember that we expect such a route to appear later
* and to remove it. */
void
nm_route_manager_ip4_route_register_device_route_purge_list (NMRouteManager *self, GArray *device_route_purge_list)
{
NMRouteManagerPrivate *priv;
guint i;
gint64 now_ns;
if (!device_route_purge_list || device_route_purge_list->len == 0)
return;
priv = NM_ROUTE_MANAGER_GET_PRIVATE (self);
now_ns = nm_utils_get_monotonic_timestamp_ns ();
for (i = 0; i < device_route_purge_list->len; i++) {
IP4DeviceRoutePurgeEntry *entry;
entry = _ip4_device_routes_purge_entry_create (self, &g_array_index (device_route_purge_list, NMPlatformIP4Route, i), now_ns);
_LOGt (vtable_v4.vt->addr_family, "device-route: watch (%s) %s",
g_hash_table_contains (priv->ip4_device_routes.entries, entry->obj)
? "update" : "new",
nmp_object_to_string (entry->obj, NMP_OBJECT_TO_STRING_PUBLIC, NULL, 0));
g_hash_table_replace (priv->ip4_device_routes.entries,
nmp_object_ref (entry->obj),
entry);
}
if (priv->ip4_device_routes.gc_id == 0) {
g_signal_connect (priv->platform, NM_PLATFORM_SIGNAL_IP4_ROUTE_CHANGED, G_CALLBACK (_ip4_device_routes_ip4_route_changed), self);
priv->ip4_device_routes.gc_id = g_timeout_add (IP4_DEVICE_ROUTES_GC_INTERVAL_SEC, (GSourceFunc) _ip4_device_routes_gc, self);
}
}
/*****************************************************************************/
static const VTableIP vtable_v4 = {
.vt = &nm_platform_vtable_route_v4,
.route_dest_cmp = (int (*) (const NMPlatformIPXRoute *, const NMPlatformIPXRoute *)) _v4_route_dest_cmp,
.route_id_cmp = (int (*) (const NMPlatformIPXRoute *, const NMPlatformIPXRoute *)) _v4_route_id_cmp,
};
static const VTableIP vtable_v6 = {
.vt = &nm_platform_vtable_route_v6,
.route_dest_cmp = (int (*) (const NMPlatformIPXRoute *, const NMPlatformIPXRoute *)) _v6_route_dest_cmp,
.route_id_cmp = (int (*) (const NMPlatformIPXRoute *, const NMPlatformIPXRoute *)) _v6_route_id_cmp,
};
/*****************************************************************************/
static void
set_property (GObject *object, guint prop_id,
const GValue *value, GParamSpec *pspec)
{
NMRouteManager *self = NM_ROUTE_MANAGER (object);
NMRouteManagerPrivate *priv = NM_ROUTE_MANAGER_GET_PRIVATE (self);
switch (prop_id) {
case PROP_PLATFORM:
/* construct-only */
priv->platform = g_value_get_object (value) ? : NM_PLATFORM_GET;
if (!priv->platform)
g_return_if_reached ();
g_object_ref (priv->platform);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/*****************************************************************************/
static void
nm_route_manager_init (NMRouteManager *self)
{
NMRouteManagerPrivate *priv = NM_ROUTE_MANAGER_GET_PRIVATE (self);
priv->ip4_routes.entries = g_array_new (FALSE, FALSE, sizeof (NMPlatformIP4Route));
priv->ip6_routes.entries = g_array_new (FALSE, FALSE, sizeof (NMPlatformIP6Route));
priv->ip4_routes.effective_metrics = g_array_new (FALSE, FALSE, sizeof (gint64));
priv->ip6_routes.effective_metrics = g_array_new (FALSE, FALSE, sizeof (gint64));
priv->ip4_routes.effective_metrics_reverse = g_array_new (FALSE, FALSE, sizeof (gint64));
priv->ip6_routes.effective_metrics_reverse = g_array_new (FALSE, FALSE, sizeof (gint64));
priv->ip4_routes.index = _route_index_create (&vtable_v4, priv->ip4_routes.entries);
priv->ip6_routes.index = _route_index_create (&vtable_v6, priv->ip6_routes.entries);
priv->ip4_device_routes.entries = g_hash_table_new_full ((GHashFunc) nmp_object_id_hash,
(GEqualFunc) nmp_object_id_equal,
(GDestroyNotify) nmp_object_unref,
(GDestroyNotify) _ip4_device_routes_purge_entry_free);
}
NMRouteManager *
nm_route_manager_new (NMPlatform *platform)
{
return g_object_new (NM_TYPE_ROUTE_MANAGER,
NM_ROUTE_MANAGER_PLATFORM, platform,
NULL);
}
static void
dispose (GObject *object)
{
NMRouteManager *self = NM_ROUTE_MANAGER (object);
NMRouteManagerPrivate *priv = NM_ROUTE_MANAGER_GET_PRIVATE (self);
g_hash_table_remove_all (priv->ip4_device_routes.entries);
_ip4_device_routes_cancel (self);
G_OBJECT_CLASS (nm_route_manager_parent_class)->dispose (object);
}
static void
finalize (GObject *object)
{
NMRouteManagerPrivate *priv = NM_ROUTE_MANAGER_GET_PRIVATE ((NMRouteManager *) object);
g_array_free (priv->ip4_routes.entries, TRUE);
g_array_free (priv->ip6_routes.entries, TRUE);
g_array_free (priv->ip4_routes.effective_metrics, TRUE);
g_array_free (priv->ip6_routes.effective_metrics, TRUE);
g_array_free (priv->ip4_routes.effective_metrics_reverse, TRUE);
g_array_free (priv->ip6_routes.effective_metrics_reverse, TRUE);
g_free (priv->ip4_routes.index);
g_free (priv->ip6_routes.index);
g_hash_table_unref (priv->ip4_device_routes.entries);
g_clear_object (&priv->platform);
G_OBJECT_CLASS (nm_route_manager_parent_class)->finalize (object);
}
static void
nm_route_manager_class_init (NMRouteManagerClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->set_property = set_property;
object_class->dispose = dispose;
object_class->finalize = finalize;
obj_properties[PROP_PLATFORM] =
g_param_spec_object (NM_ROUTE_MANAGER_PLATFORM, "", "",
NM_TYPE_PLATFORM,
G_PARAM_WRITABLE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (object_class, _PROPERTY_ENUMS_LAST, obj_properties);
}
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