static u8 *format_dhcp_client_state (u8 * s, va_list * va);
static vlib_node_registration_t dhcp_client_process_node;
+#define foreach_dhcp_client_process_stat \
+_(DISCOVER, "DHCP discover packets sent") \
+_(OFFER, "DHCP offer packets sent") \
+_(REQUEST, "DHCP request packets sent") \
+_(ACK, "DHCP ack packets sent")
+
+typedef enum
+{
+#define _(sym,str) DHCP_STAT_##sym,
+ foreach_dhcp_client_process_stat
+#undef _
+ DHCP_STAT_UNKNOWN,
+ DHCP_STAT_N_STAT,
+} sample_error_t;
+
+static char *dhcp_client_process_stat_strings[] = {
+#define _(sym,string) string,
+ foreach_dhcp_client_process_stat
+#undef _
+ "DHCP unknown packets sent",
+};
+
+
static void
dhcp_client_acquire_address (dhcp_client_main_t * dcm, dhcp_client_t * c)
{
EVENT_DHCP_CLIENT_WAKEUP, *client_index);
}
+static void
+dhcp_client_addr_callback (dhcp_client_t * c)
+{
+ dhcp_client_main_t *dcm = &dhcp_client_main;
+ void (*fp) (u32, u32, u8 *, u8, u8, u8 *, u8 *, u8 *) = c->event_callback;
+
+ /* add the advertised subnet and disable the feature */
+ dhcp_client_acquire_address (dcm, c);
+ vnet_feature_enable_disable ("ip4-unicast",
+ "ip4-dhcp-client-detect",
+ c->sw_if_index, 0, 0, 0);
+
+ /*
+ * Configure default IP route:
+ */
+ if (c->router_address.as_u32)
+ {
+ fib_prefix_t all_0s = {
+ .fp_len = 0,
+ .fp_addr.ip4.as_u32 = 0x0,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ };
+ ip46_address_t nh = {
+ .ip4 = c->router_address,
+ };
+
+ /* *INDENT-OFF* */
+ fib_table_entry_path_add (
+ fib_table_get_index_for_sw_if_index (
+ FIB_PROTOCOL_IP4,
+ c->sw_if_index),
+ &all_0s,
+ FIB_SOURCE_DHCP,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh, c->sw_if_index,
+ ~0, 1, NULL, // no label stack
+ FIB_ROUTE_PATH_FLAG_NONE);
+ /* *INDENT-ON* */
+ }
+
+ /*
+ * Call the user's event callback to report DHCP information
+ */
+ if (fp)
+ (*fp) (c->client_index, /* clinet index */
+ c->pid, c->hostname, c->subnet_mask_width, 0, /* is_ipv6 */
+ (u8 *) & c->leased_address, /* host IP address */
+ (u8 *) & c->router_address, /* router IP address */
+ (u8 *) (c->l2_rewrite + 6)); /* host MAC address */
+}
+
/*
* dhcp_client_for_us - server-to-client callback.
* Called from proxy_node.c:dhcp_proxy_to_client_input().
}
/* OK, we own the address (etc), add to the routing table(s) */
if (c->state == DHCP_REQUEST)
- {
- void (*fp) (u32, u32, u8 *, u8, u8, u8 *, u8 *, u8 *) =
- c->event_callback;
-
- /* add the advertised subnet and disable the feature */
- dhcp_client_acquire_address (dcm, c);
- vnet_feature_enable_disable ("ip4-unicast",
- "ip4-dhcp-client-detect",
- c->sw_if_index, 0, 0, 0);
-
- /*
- * Configure default IP route:
- */
- if (c->router_address.as_u32)
- {
- fib_prefix_t all_0s = {
- .fp_len = 0,
- .fp_addr.ip4.as_u32 = 0x0,
- .fp_proto = FIB_PROTOCOL_IP4,
- };
- ip46_address_t nh = {
- .ip4 = c->router_address,
- };
-
- /* *INDENT-OFF* */
- fib_table_entry_path_add (
- fib_table_get_index_for_sw_if_index (
- FIB_PROTOCOL_IP4,
- c->sw_if_index),
- &all_0s,
- FIB_SOURCE_DHCP,
- FIB_ENTRY_FLAG_NONE,
- DPO_PROTO_IP4,
- &nh, c->sw_if_index,
- ~0, 1, NULL, // no label stack
- FIB_ROUTE_PATH_FLAG_NONE);
- /* *INDENT-ON* */
- }
-
- /*
- * Call the user's event callback to report DHCP information
- */
- if (fp)
- (*fp) (c->client_index, /* clinet index */
- c->pid, c->hostname, c->subnet_mask_width, 0, /* is_ipv6 */
- (u8 *) & c->leased_address, /* host IP address */
- (u8 *) & c->router_address, /* router IP address */
- (u8 *) (c->l2_rewrite + 6)); /* host MAC address */
- }
+ vl_api_rpc_call_main_thread (dhcp_client_addr_callback,
+ (u8 *) c, sizeof (*c));
c->state = DHCP_BOUND;
c->retry_count = 0;
vlib_frame_t *f;
dhcp_option_t *o;
u16 udp_length, ip_length;
+ u32 counter_index;
/* Interface(s) down? */
if ((hw->flags & VNET_HW_INTERFACE_FLAG_LINK_UP) == 0)
udp_length = ip_length - (sizeof (*ip));
udp->length = clib_host_to_net_u16 (udp_length);
+
+ switch (type)
+ {
+#define _(a,b) case DHCP_PACKET_##a: {counter_index = DHCP_STAT_##a; break;}
+ foreach_dhcp_client_process_stat
+#undef _
+ default:
+ counter_index = DHCP_STAT_UNKNOWN;
+ break;
+ }
+
+ vlib_node_increment_counter (vm, dhcp_client_process_node.index,
+ counter_index, 1);
}
static int
if (now > c->lease_expires)
{
+ /* Remove the default route */
if (c->router_address.as_u32)
{
fib_prefix_t all_0s = {
DPO_PROTO_IP4, &nh, c->sw_if_index, ~0,
1, FIB_ROUTE_PATH_FLAG_NONE);
}
-
+ /* Remove the interface address */
dhcp_client_release_address (dcm, c);
c->state = DHCP_DISCOVER;
c->next_transmit = now;
c->router_address.as_u32 = 0;
c->lease_renewal_interval = 0;
c->dhcp_server.as_u32 = 0;
+ /*
+ * We disable the client detect feature when we bind a
+ * DHCP address. Turn it back on again here.
+ * Otherwise, if the DHCP server replies after an outage,
+ * we'll never see it.
+ */
+ vnet_feature_enable_disable ("ip4-unicast",
+ "ip4-dhcp-client-detect",
+ c->sw_if_index, 1, 0, 0);
return 1;
}
return 0;
.type = VLIB_NODE_TYPE_PROCESS,
.name = "dhcp-client-process",
.process_log2_n_stack_bytes = 16,
+ .n_errors = ARRAY_LEN(dhcp_client_process_stat_strings),
+ .error_strings = dhcp_client_process_stat_strings,
};
/* *INDENT-ON* */
Code Review / vpp.git / blobdiff