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platform: address utility functions

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This commit is contained in:
Pavel Šimerda 2013-04-16 14:24:46 +02:00
parent ab8ca2dbe2
commit bd0fd1cd1d
2 changed files with 132 additions and 0 deletions
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129
src/platform/nm-platform.c
View file

@ -1155,6 +1155,135 @@ nm_platform_ip6_address_exists (int ifindex, struct in6_addr address, int plen)
return klass->ip6_address_exists (platform, ifindex, address, plen);
}
static gboolean
array_contains_ip4_address (const GArray *addresses, const NMPlatformIP4Address *address)
{
int i;
for (i = 0; i < addresses->len; i++) {
if (!memcmp (&g_array_index (addresses, NMPlatformIP4Address, i), address, sizeof (*address)))
return TRUE;
}
return FALSE;
}
static gboolean
array_contains_ip6_address (const GArray *addresses, const NMPlatformIP6Address *address)
{
int i;
for (i = 0; i < addresses->len; i++) {
if (!memcmp (&g_array_index (addresses, NMPlatformIP6Address, i), address, sizeof (*address)))
return TRUE;
}
return FALSE;
}
/**
* nm_platform_ip4_address_sync:
* @ifindex: Interface index
* @known_addresses: List of addresses
*
* A convenience function to synchronize addresses for a specific interface
* with the least possible disturbance. It simply removes addresses that are
* not listed and adds addresses that are.
*
* Returns: %TRUE on success.
*/
gboolean
nm_platform_ip4_address_sync (int ifindex, const GArray *known_addresses)
{
GArray *addresses;
NMPlatformIP4Address *address;
const NMPlatformIP4Address *known_address;
int i;
/* Delete unknown addresses */
addresses = nm_platform_ip4_address_get_all (ifindex);
for (i = 0; i < addresses->len; i++) {
address = &g_array_index (addresses, NMPlatformIP4Address, i);
address->ifindex = 0;
if (!known_addresses || !array_contains_ip4_address (known_addresses, address))
nm_platform_ip4_address_delete (ifindex, address->address, address->plen);
}
g_array_free (addresses, TRUE);
if (!known_addresses)
return TRUE;
/* Add missing addresses */
for (i = 0; i < known_addresses->len; i++) {
known_address = &g_array_index (known_addresses, NMPlatformIP4Address, i);
if (!nm_platform_ip4_address_exists (ifindex, known_address->address, known_address->plen))
if (!nm_platform_ip4_address_add (ifindex, known_address->address, known_address->plen))
return FALSE;
}
return TRUE;
}
/**
* nm_platform_ip6_address_sync:
* @ifindex: Interface index
* @known_addresses: List of addresses
*
* A convenience function to synchronize addresses for a specific interface
* with the least possible disturbance. It simply removes addresses that are
* not listed and adds addresses that are.
*
* Returns: %TRUE on success.
*/
gboolean
nm_platform_ip6_address_sync (int ifindex, const GArray *known_addresses)
{
GArray *addresses;
NMPlatformIP6Address *address;
const NMPlatformIP6Address *known_address;
int i;
/* Delete unknown addresses */
addresses = nm_platform_ip6_address_get_all (ifindex);
for (i = 0; i < addresses->len; i++) {
address = &g_array_index (addresses, NMPlatformIP6Address, i);
address->ifindex = 0;
/* Leave link local address management to the kernel */
if (IN6_IS_ADDR_LINKLOCAL (&address->address))
continue;
if (!known_addresses || !array_contains_ip6_address (known_addresses, address))
nm_platform_ip6_address_delete (ifindex, address->address, address->plen);
}
g_array_free (addresses, TRUE);
if (!known_addresses)
return TRUE;
/* Add missing addresses */
for (i = 0; i < known_addresses->len; i++) {
known_address = &g_array_index (known_addresses, NMPlatformIP6Address, i);
if (!nm_platform_ip6_address_exists (ifindex, known_address->address, known_address->plen))
if (!nm_platform_ip6_address_add (ifindex, known_address->address, known_address->plen))
return FALSE;
}
return TRUE;
}
gboolean
nm_platform_address_flush (int ifindex)
{
return nm_platform_ip4_address_sync (ifindex, NULL)
&& nm_platform_ip6_address_sync (ifindex, NULL);
}
/******************************************************************/
GArray *
nm_platform_ip4_route_get_all (int ifindex)
{

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

@ -368,6 +368,9 @@ gboolean nm_platform_ip4_address_delete (int ifindex, in_addr_t address, int ple
gboolean nm_platform_ip6_address_delete (int ifindex, struct in6_addr address, int plen);
gboolean nm_platform_ip4_address_exists (int ifindex, in_addr_t address, int plen);
gboolean nm_platform_ip6_address_exists (int ifindex, struct in6_addr address, int plen);
gboolean nm_platform_ip4_address_sync (int ifindex, const GArray *known_addresses);
gboolean nm_platform_ip6_address_sync (int ifindex, const GArray *known_addresses);
gboolean nm_platform_address_flush (int ifindex);
GArray *nm_platform_ip4_route_get_all (int ifindex);
GArray *nm_platform_ip6_route_get_all (int ifindex);