int
control_add_ipv4_local_entry(struct in_addr* nexthop,
struct in_addr* saddr,
uint8_t depth,
uint32_t port_id,
int32_t socket_id)
{
int s;
uint16_t nexthop_id;
s = neighbor4_lookup_nexthop(neighbor4_struct[socket_id], nexthop,
&nexthop_id);
if (s < 0) {
s = neighbor4_add_nexthop(neighbor4_struct[socket_id], nexthop,
&nexthop_id, NEI_ACTION_KNI);
if (s < 0) {
RTE_LOG(
ERR, PKTJ_CTRL1,
"failed to add a nexthop during route adding...\n");
return -1;
}
}
neighbor4_set_port(neighbor4_struct[socket_id], nexthop_id, port_id);
s = rte_lpm_add(ipv4_pktj_lookup_struct[socket_id],
rte_be_to_cpu_32(saddr->s_addr), depth, nexthop_id);
if (s < 0) {
RTE_LOG(
ERR, PKTJ_CTRL1,
"failed to add a route in lpm during route adding...\n");
return -1;
}
neighbor4_refcount_incr(neighbor4_struct[socket_id], nexthop_id);
return nexthop_id;
}
static int
add_invalid_neighbor4(neighbor_struct_t *neighbor_struct, struct in_addr *ip,
uint16_t dst_port)
{
struct ether_addr invalid_mac = {{0x00, 0x00, 0x00, 0x00, 0x00, 0x00}};
uint8_t nexthop_id;
if (neighbor4_add_nexthop(neighbor_struct, ip, &nexthop_id,
NEI_ACTION_DROP) < 0) {
return -1;
}
neighbor4_refcount_incr(neighbor_struct, nexthop_id);
neighbor4_set_lladdr_port(neighbor_struct, nexthop_id, &invalid_mac,
&invalid_mac, dst_port, -1);
return 0;
}
static int
route4(__rte_unused struct rtmsg* route,
route_action_t action,
struct in_addr* addr,
uint8_t depth,
struct in_addr* nexthop,
uint8_t type,
void* args)
{
// If route add
// lookup next hop in neighbor table ipv4
// if not lookup
// create next hop, with flag invalid and addr = nexthop
// nexthopid = last id
//
// register new route in lpm, with nexthop id
// increment refcount in neighbor
// If route delete
// lookup next hop in neighbor table ipv4
// if not lookup
// then WTF TABLE CORRUPTED
// remove route from lpm
// decrement refcount in neighbor
// if refcount reached 0
// then flag entry empty
struct control_handle* handle = args;
assert(handle != NULL);
uint16_t nexthop_id;
int s;
int32_t socket_id = handle->socket_id;
struct in_addr blackhole_addr4 = {rte_be_to_cpu_32(INADDR_ANY)};
if (type == RTN_BLACKHOLE) {
nexthop = &blackhole_addr4;
}
if (action == ROUTE_ADD) {
RTE_LOG(DEBUG, PKTJ_CTRL1, "adding an ipv4 route...\n");
// lookup nexthop
s = neighbor4_lookup_nexthop(neighbor4_struct[socket_id],
nexthop, &nexthop_id);
if (s < 0) {
s = neighbor4_add_nexthop(neighbor4_struct[socket_id],
nexthop, &nexthop_id,
NEI_ACTION_FWD);
if (s < 0) {
RTE_LOG(ERR, PKTJ_CTRL1,
"failed to add a "
"nexthop during "
"route adding...\n");
return -1;
}
}
s = rte_lpm_add(ipv4_pktj_lookup_struct[socket_id],
rte_be_to_cpu_32(addr->s_addr), depth,
nexthop_id);
if (s < 0) {
lpm4_stats[socket_id].nb_add_ko++;
RTE_LOG(ERR, PKTJ_CTRL1,
"failed to add a route in "
"lpm during route "
"adding...\n");
return -1;
}
neighbor4_refcount_incr(neighbor4_struct[socket_id],
nexthop_id);
lpm4_stats[socket_id].nb_add_ok++;
}
if (action == ROUTE_DELETE) {
RTE_LOG(DEBUG, PKTJ_CTRL1, "deleting an ipv4 route...\n");
// lookup nexthop
s = neighbor4_lookup_nexthop(neighbor4_struct[socket_id],
nexthop, &nexthop_id);
if (s < 0) {
RTE_LOG(ERR, PKTJ_CTRL1,
"failed to find nexthop "
"during route deletion...\n");
return -1;
}
s = rte_lpm_delete(ipv4_pktj_lookup_struct[socket_id],
rte_be_to_cpu_32(addr->s_addr), depth);
if (s < 0) {
lpm4_stats[socket_id].nb_del_ko++;
RTE_LOG(ERR, PKTJ_CTRL1, "failed to delete route...\n");
return -1;
}
neighbor4_refcount_decr(neighbor4_struct[socket_id],
nexthop_id);
lpm4_stats[socket_id].nb_del_ok++;
}
RTE_LOG(DEBUG, PKTJ_CTRL1, "route ope success\n");
return 0;
}
