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Our first Netlink syncer!

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Add lcpng_nl_sync.c that will house these functions. Their purpose is to
take state learned from netlink messages, and apply that state to VPP.

Some rearranging/plumbing was necessary to get logging to be visible in
this new source file.

Then, we add lcp_nl_neigh_add() and _del() which look up the LIP, convert
the lladdr and ip address from Netlink into VPP variants, and then add or
remove the ip4/ip6 neighbor adjacency.
This commit is contained in:
Pim van Pelt
2021-08-23 23:58:03 +02:00
parent c4e3043ea1
commit 30bab1d3f9
4 changed files with 153 additions and 4 deletions
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9
lcpng_netlink.c
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@ -40,7 +40,10 @@
#include <plugins/lcpng/lcpng_netlink.h>
#include <plugins/lcpng/lcpng_interface.h>
static lcp_nl_main_t lcp_nl_main = {
static void lcp_nl_open_socket (u8 *ns);
static void lcp_nl_close_socket (void);
lcp_nl_main_t lcp_nl_main = {
.rx_buf_size = NL_RX_BUF_SIZE_DEF,
.tx_buf_size = NL_TX_BUF_SIZE_DEF,
.batch_size = NL_BATCH_SIZE_DEF,
@ -200,6 +203,10 @@ lcp_nl_dispatch (struct nl_object *obj, void *arg)
/* Here is where we'll sync the netlink messages into VPP */
switch (nl_object_get_msgtype (obj))
{
case RTM_NEWNEIGH:
return lcp_nl_neigh_add ((struct rtnl_neigh *) obj);
case RTM_DELNEIGH:
return lcp_nl_neigh_del ((struct rtnl_neigh *) obj);
default:
NL_WARN ("dispatch: ignored %U", format_nl_object, obj);
break;