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Add an optional kernel-interface parameter to install IPs with a custom prefix

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This commit is contained in:
Martin Willi
2012-11-29 10:22:51 +01:00
parent fdd94fc846
commit 50bd755871
8 changed files with 31 additions and 23 deletions
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src/libhydra/plugins/kernel_netlink/kernel_netlink_net.c
+7 -6
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@@ -1634,7 +1634,7 @@ METHOD(kernel_net_t, get_nexthop, host_t*,
* By setting the appropriate nlmsg_type, the ip will be set or unset.
*/
static status_t manage_ipaddr(private_kernel_netlink_net_t *this, int nlmsg_type,
int flags, int if_index, host_t *ip)
int flags, int if_index, host_t *ip, int prefix)
{
netlink_buf_t request;
struct nlmsghdr *hdr;
@@ -1653,7 +1653,7 @@ static status_t manage_ipaddr(private_kernel_netlink_net_t *this, int nlmsg_type
msg = (struct ifaddrmsg*)NLMSG_DATA(hdr);
msg->ifa_family = ip->get_family(ip);
msg->ifa_flags = 0;
msg->ifa_prefixlen = 8 * chunk.len;
msg->ifa_prefixlen = prefix < 0 ? chunk.len * 8 : prefix;
msg->ifa_scope = RT_SCOPE_UNIVERSE;
msg->ifa_index = if_index;
@@ -1663,7 +1663,8 @@ static status_t manage_ipaddr(private_kernel_netlink_net_t *this, int nlmsg_type
}
METHOD(kernel_net_t, add_ip, status_t,
private_kernel_netlink_net_t *this, host_t *virtual_ip, host_t *iface_ip)
private_kernel_netlink_net_t *this, host_t *virtual_ip, int prefix,
host_t *iface_ip)
{
addr_map_entry_t *entry, lookup = {
.ip = virtual_ip,
@@ -1738,7 +1739,7 @@ METHOD(kernel_net_t, add_ip, status_t,
iface->addrs->insert_last(iface->addrs, addr);
addr_map_entry_add(this->vips, addr, iface);
if (manage_ipaddr(this, RTM_NEWADDR, NLM_F_CREATE | NLM_F_EXCL,
iface->ifindex, virtual_ip) == SUCCESS)
iface->ifindex, virtual_ip, prefix) == SUCCESS)
{
while (!is_vip_installed_or_gone(this, virtual_ip, &entry))
{ /* wait until address appears */
@@ -1763,7 +1764,7 @@ METHOD(kernel_net_t, add_ip, status_t,
}
METHOD(kernel_net_t, del_ip, status_t,
private_kernel_netlink_net_t *this, host_t *virtual_ip)
private_kernel_netlink_net_t *this, host_t *virtual_ip, int prefix)
{
addr_map_entry_t *entry, lookup = {
.ip = virtual_ip,
@@ -1802,7 +1803,7 @@ METHOD(kernel_net_t, del_ip, status_t,
* until the entry is gone, also so we can wait below */
entry->addr->installed = FALSE;
status = manage_ipaddr(this, RTM_DELADDR, 0, entry->iface->ifindex,
virtual_ip);
virtual_ip, prefix);
if (status == SUCCESS)
{ /* wait until the address is really gone */
while (is_known_vip(this, virtual_ip))