diff options
Diffstat (limited to 'src/vnet/dhcp/client.c')
| -rw-r--r-- | src/vnet/dhcp/client.c | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/src/vnet/dhcp/client.c b/src/vnet/dhcp/client.c index dbcb2a53dbc..11e47f9ad7a 100644 --- a/src/vnet/dhcp/client.c +++ b/src/vnet/dhcp/client.c @@ -106,6 +106,7 @@ dhcp_client_addr_callback (dhcp_client_t * c) vnet_feature_enable_disable ("ip4-unicast", "ip4-dhcp-client-detect", c->sw_if_index, 0 /* disable */ , 0, 0); + c->client_detect_feature_enabled = 0; /* if renewing the lease, the address and route have already been added */ if (c->state == DHCP_BOUND) @@ -220,6 +221,7 @@ dhcp_client_for_us (u32 bi, vlib_buffer_t * b, { u32 lease_time_in_seconds = clib_host_to_net_u32 (o->data_as_u32[0]); + // for debug: lease_time_in_seconds = 20; /*$$$$*/ c->lease_expires = now + (f64) lease_time_in_seconds; c->lease_lifetime = lease_time_in_seconds; /* Set a sensible default, in case we don't get opt 58 */ @@ -307,6 +309,7 @@ dhcp_client_for_us (u32 bi, vlib_buffer_t * b, "ip4-dhcp-client-detect", c->sw_if_index, 1 /* enable */ , 0, 0); + c->client_detect_feature_enabled = 1; } /* Wipe out any memory of the address we had... */ c->state = DHCP_DISCOVER; @@ -577,6 +580,15 @@ dhcp_discover_state (dhcp_client_main_t * dcm, dhcp_client_t * c, f64 now) * State machine "DISCOVER" state. Send a dhcp discover packet, * eventually back off the retry rate. */ + + if (c->client_detect_feature_enabled == 0) + { + vnet_feature_enable_disable ("ip4-unicast", + "ip4-dhcp-client-detect", + c->sw_if_index, 1 /* enable */ , 0, 0); + c->client_detect_feature_enabled = 1; + } + send_dhcp_pkt (dcm, c, DHCP_PACKET_DISCOVER, 1 /* is_broadcast */ ); c->retry_count++; @@ -623,10 +635,13 @@ dhcp_bound_state (dhcp_client_main_t * dcm, dhcp_client_t * c, f64 now) * DHCP address. Turn it back on again on first renew attempt. * Otherwise, if the DHCP server replies we'll never see it. */ - if (!c->retry_count) - vnet_feature_enable_disable ("ip4-unicast", - "ip4-dhcp-client-detect", - c->sw_if_index, 1 /* enable */ , 0, 0); + if (c->client_detect_feature_enabled == 0) + { + vnet_feature_enable_disable ("ip4-unicast", + "ip4-dhcp-client-detect", + c->sw_if_index, 1 /* enable */ , 0, 0); + c->client_detect_feature_enabled = 1; + } send_dhcp_pkt (dcm, c, DHCP_PACKET_REQUEST, 0 /* is_broadcast */ ); @@ -928,6 +943,7 @@ dhcp_client_add_del (dhcp_client_add_del_args_t * a) vnet_feature_enable_disable ("ip4-unicast", "ip4-dhcp-client-detect", c->sw_if_index, 1 /* enable */ , 0, 0); + c->client_detect_feature_enabled = 1; vlib_process_signal_event (vm, dhcp_client_process_node.index, EVENT_DHCP_CLIENT_WAKEUP, c - dcm->clients); |