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platform: route utility functions

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This commit is contained in:
Pavel Šimerda 2013-05-02 08:02:44 +02:00
parent bd0fd1cd1d
commit ef73aa3b2c
2 changed files with 132 additions and 0 deletions
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129
src/platform/nm-platform.c
View file

@ -1404,6 +1404,135 @@ nm_platform_ip6_route_exists (int ifindex, struct in6_addr network, int plen, in
return klass->ip6_route_exists (platform, ifindex, network, plen, metric);
}
static gboolean
array_contains_ip4_route (const GArray *routes, const NMPlatformIP4Route *route)
{
int i;
for (i = 0; i < routes->len; i++) {
if (!memcmp (&g_array_index (routes, NMPlatformIP4Route, i), route, sizeof (*route)))
return TRUE;
}
return FALSE;
}
static gboolean
array_contains_ip6_route (const GArray *routes, const NMPlatformIP6Route *route)
{
int i;
for (i = 0; i < routes->len; i++) {
if (!memcmp (&g_array_index (routes, NMPlatformIP6Route, i), route, sizeof (*route)))
return TRUE;
}
return FALSE;
}
/**
* nm_platform_ip4_route_sync:
* @ifindex: Interface index
* @known_routes: List of routes
*
* 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.
*
* Returns: %TRUE on success.
*/
gboolean
nm_platform_ip4_route_sync (int ifindex, const GArray *known_routes)
{
GArray *routes;
NMPlatformIP4Route *route;
const NMPlatformIP4Route *known_route;
int i;
/* Delete unknown routes */
routes = nm_platform_ip4_route_get_all (ifindex);
for (i = 0; i < routes->len; i++) {
route = &g_array_index (routes, NMPlatformIP4Route, i);
route->ifindex = 0;
if (!known_routes || !array_contains_ip4_route (known_routes, route))
nm_platform_ip4_route_delete (ifindex, route->network, route->plen, route->metric);
}
g_array_free (routes, TRUE);
if (!known_routes)
return TRUE;
/* Add missing routes */
for (i = 0; i < known_routes->len; i++) {
known_route = &g_array_index (known_routes, NMPlatformIP4Route, i);
if (!nm_platform_ip4_route_exists (ifindex,
known_route->network, known_route->plen, known_route->metric))
if (!nm_platform_ip4_route_add (ifindex,
known_route->network, known_route->plen, known_route->gateway,
known_route->metric, known_route->mss))
return FALSE;
}
return TRUE;
}
/**
* nm_platform_ip6_route_sync:
* @ifindex: Interface index
* @known_routes: List of routes
*
* 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.
*
* Returns: %TRUE on success.
*/
gboolean
nm_platform_ip6_route_sync (int ifindex, const GArray *known_routes)
{
GArray *routes;
NMPlatformIP6Route *route;
const NMPlatformIP6Route *known_route;
int i;
/* Delete unknown routes */
routes = nm_platform_ip6_route_get_all (ifindex);
for (i = 0; i < routes->len; i++) {
route = &g_array_index (routes, NMPlatformIP6Route, i);
route->ifindex = 0;
if (!known_routes || !array_contains_ip6_route (known_routes, route))
nm_platform_ip6_route_delete (ifindex, route->network, route->plen, route->metric);
}
g_array_free (routes, TRUE);
if (!known_routes)
return TRUE;
/* Add missing routes */
for (i = 0; i < known_routes->len; i++) {
known_route = &g_array_index (known_routes, NMPlatformIP6Route, i);
if (!nm_platform_ip6_route_exists (ifindex,
known_route->network, known_route->plen, known_route->metric))
if (!nm_platform_ip6_route_add (ifindex,
known_route->network, known_route->plen, known_route->gateway,
known_route->metric, known_route->mss))
return FALSE;
}
return TRUE;
}
gboolean
nm_platform_route_flush (int ifindex)
{
return nm_platform_ip4_route_sync (ifindex, NULL)
&& nm_platform_ip6_route_sync (ifindex, NULL);
}
/******************************************************************/
static void

3
src/platform/nm-platform.h
View file

@ -383,6 +383,9 @@ gboolean nm_platform_ip4_route_delete (int ifindex, in_addr_t network, int plen,
gboolean nm_platform_ip6_route_delete (int ifindex, struct in6_addr network, int plen, int metric);
gboolean nm_platform_ip4_route_exists (int ifindex, in_addr_t network, int plen, int metric);
gboolean nm_platform_ip6_route_exists (int ifindex, struct in6_addr network, int plen, int metric);
gboolean nm_platform_ip4_route_sync (int ifindex, const GArray *known_routes);
gboolean nm_platform_ip6_route_sync (int ifindex, const GArray *known_routes);
gboolean nm_platform_route_flush (int ifindex);
#define auto_g_free __attribute__((cleanup(put_g_free)))
static void __attribute__((unused))