#include <vnet/fib/fib_table.h>
dhcp_client_main_t dhcp_client_main;
-static u8 * format_dhcp_client_state (u8 * s, va_list * va);
+static u8 *format_dhcp_client_state (u8 * s, va_list * va);
static vlib_node_registration_t dhcp_client_process_node;
-static void
+static void
dhcp_client_add_rx_address (dhcp_client_main_t * dcm, dhcp_client_t * c)
{
/* Install a local entry for the offered address */
- fib_prefix_t rx =
- {
- .fp_len = 32,
- .fp_addr.ip4 = c->leased_address,
- .fp_proto = FIB_PROTOCOL_IP4,
- };
-
- fib_table_entry_special_add(fib_table_get_index_for_sw_if_index(
- FIB_PROTOCOL_IP4,
- c->sw_if_index),
- &rx,
- FIB_SOURCE_DHCP,
- (FIB_ENTRY_FLAG_LOCAL));
+ fib_prefix_t rx = {
+ .fp_len = 32,
+ .fp_addr.ip4 = c->leased_address,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ };
+
+ fib_table_entry_special_add (fib_table_get_index_for_sw_if_index
+ (FIB_PROTOCOL_IP4, c->sw_if_index), &rx,
+ FIB_SOURCE_DHCP, (FIB_ENTRY_FLAG_LOCAL));
/* And add the server's address as uRPF exempt so we can accept
* local packets from it */
- fib_prefix_t server =
- {
- .fp_len = 32,
- .fp_addr.ip4 = c->dhcp_server,
- .fp_proto = FIB_PROTOCOL_IP4,
- };
-
- fib_table_entry_special_add(fib_table_get_index_for_sw_if_index(
- FIB_PROTOCOL_IP4,
- c->sw_if_index),
- &server,
- FIB_SOURCE_URPF_EXEMPT,
- (FIB_ENTRY_FLAG_DROP));
+ fib_prefix_t server = {
+ .fp_len = 32,
+ .fp_addr.ip4 = c->dhcp_server,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ };
+
+ fib_table_entry_special_add (fib_table_get_index_for_sw_if_index
+ (FIB_PROTOCOL_IP4, c->sw_if_index), &server,
+ FIB_SOURCE_URPF_EXEMPT, (FIB_ENTRY_FLAG_DROP));
}
static void
dhcp_client_remove_rx_address (dhcp_client_main_t * dcm, dhcp_client_t * c)
{
- fib_prefix_t rx =
- {
- .fp_len = 32,
- .fp_addr.ip4 = c->leased_address,
- .fp_proto = FIB_PROTOCOL_IP4,
- };
-
- fib_table_entry_special_remove(fib_table_get_index_for_sw_if_index(
- FIB_PROTOCOL_IP4,
- c->sw_if_index),
- &rx,
- FIB_SOURCE_DHCP);
- fib_prefix_t server =
- {
- .fp_len = 32,
- .fp_addr.ip4 = c->dhcp_server,
- .fp_proto = FIB_PROTOCOL_IP4,
- };
-
- fib_table_entry_special_remove(fib_table_get_index_for_sw_if_index(
- FIB_PROTOCOL_IP4,
- c->sw_if_index),
- &server,
- FIB_SOURCE_URPF_EXEMPT);
+ fib_prefix_t rx = {
+ .fp_len = 32,
+ .fp_addr.ip4 = c->leased_address,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ };
+
+ fib_table_entry_special_remove (fib_table_get_index_for_sw_if_index
+ (FIB_PROTOCOL_IP4, c->sw_if_index), &rx,
+ FIB_SOURCE_DHCP);
+ fib_prefix_t server = {
+ .fp_len = 32,
+ .fp_addr.ip4 = c->dhcp_server,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ };
+
+ fib_table_entry_special_remove (fib_table_get_index_for_sw_if_index
+ (FIB_PROTOCOL_IP4, c->sw_if_index), &server,
+ FIB_SOURCE_URPF_EXEMPT);
}
static void
dhcp_client_acquire_address (dhcp_client_main_t * dcm, dhcp_client_t * c)
{
- /*
+ /*
* Install any/all info gleaned from dhcp, right here
*/
ip4_add_del_interface_address (dcm->vlib_main, c->sw_if_index,
- (void *) &c->leased_address,
- c->subnet_mask_width, 0 /*is_del*/);
+ (void *) &c->leased_address,
+ c->subnet_mask_width, 0 /*is_del */ );
}
-static void
+static void
dhcp_client_release_address (dhcp_client_main_t * dcm, dhcp_client_t * c)
{
- /*
+ /*
* Remove any/all info gleaned from dhcp, right here. Caller(s)
* have not wiped out the info yet.
*/
ip4_add_del_interface_address (dcm->vlib_main, c->sw_if_index,
- (void *) &c->leased_address,
- c->subnet_mask_width, 1 /*is_del*/);
+ (void *) &c->leased_address,
+ c->subnet_mask_width, 1 /*is_del */ );
}
static void
set_l2_rewrite (dhcp_client_main_t * dcm, dhcp_client_t * c)
{
/* Acquire the L2 rewrite string for the indicated sw_if_index */
- c->l2_rewrite = vnet_build_rewrite_for_sw_interface(
- dcm->vnet_main,
- c->sw_if_index,
- VNET_LINK_IP4,
- 0 /* broadcast */);
+ c->l2_rewrite = vnet_build_rewrite_for_sw_interface (dcm->vnet_main,
+ c->sw_if_index,
+ VNET_LINK_IP4,
+ 0 /* broadcast */ );
}
void vl_api_rpc_call_main_thread (void *fp, u8 * data, u32 data_length);
{
vlib_main_t *vm = vlib_get_main ();
ASSERT (vlib_get_thread_index () == 0);
- vlib_process_signal_event (vm, dhcp_client_process_node.index,
+ vlib_process_signal_event (vm, dhcp_client_process_node.index,
EVENT_DHCP_CLIENT_WAKEUP, *client_index);
}
-/*
+/*
* dhcp_client_for_us - server-to-client callback.
* Called from proxy_node.c:dhcp_proxy_to_client_input().
* This function first decides that the packet in question is
* actually for the dhcp client code in case we're also acting as
* a dhcp proxy. Ay caramba, what a folly!
*/
-int dhcp_client_for_us (u32 bi, vlib_buffer_t * b,
- ip4_header_t * ip,
- udp_header_t * udp,
- dhcp_header_t * dhcp)
+int
+dhcp_client_for_us (u32 bi, vlib_buffer_t * b,
+ ip4_header_t * ip,
+ udp_header_t * udp, dhcp_header_t * dhcp)
{
- dhcp_client_main_t * dcm = &dhcp_client_main;
- vlib_main_t * vm = dcm->vlib_main;
- dhcp_client_t * c;
- uword * p;
+ dhcp_client_main_t *dcm = &dhcp_client_main;
+ vlib_main_t *vm = dcm->vlib_main;
+ dhcp_client_t *c;
+ uword *p;
f64 now = vlib_time_now (dcm->vlib_main);
u8 dhcp_message_type = 0;
- dhcp_option_t * o;
+ dhcp_option_t *o;
- /*
- * Doing dhcp client on this interface?
+ /*
+ * Doing dhcp client on this interface?
* Presumably we will always receive dhcp clnt for-us pkts on
* the interface that's asking for an address.
*/
- p = hash_get (dcm->client_by_sw_if_index,
- vnet_buffer(b)->sw_if_index [VLIB_RX]);
+ p = hash_get (dcm->client_by_sw_if_index,
+ vnet_buffer (b)->sw_if_index[VLIB_RX]);
if (p == 0)
- return 0; /* no */
-
+ return 0; /* no */
+
c = pool_elt_at_index (dcm->clients, p[0]);
/* Mixing dhcp relay and dhcp proxy? DGMS... */
c->dhcp_server.as_u32 = dhcp->server_ip_address.as_u32;
o = (dhcp_option_t *) dhcp->options;
-
- while (o->option != 0xFF /* end of options */ &&
- (u8 *) o < (b->data + b->current_data + b->current_length))
+
+ while (o->option != 0xFF /* end of options */ &&
+ (u8 *) o < (b->data + b->current_data + b->current_length))
{
switch (o->option)
- {
- case 53: /* dhcp message type */
- dhcp_message_type = o->data[0];
- break;
-
- case 51: /* lease time */
- {
- u32 lease_time_in_seconds =
- clib_host_to_net_u32 (o->data_as_u32[0]);
- 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 */
- c->lease_renewal_interval = lease_time_in_seconds / 2;
- }
- break;
-
- case 58: /* lease renew time in seconds */
- {
- u32 lease_renew_time_in_seconds =
- clib_host_to_net_u32 (o->data_as_u32[0]);
- c->lease_renewal_interval = lease_renew_time_in_seconds;
- }
- break;
-
- case 54: /* dhcp server address */
- c->dhcp_server.as_u32 = o->data_as_u32[0];
- break;
-
- case 1: /* subnet mask */
- {
- u32 subnet_mask =
- clib_host_to_net_u32 (o->data_as_u32[0]);
- c->subnet_mask_width = count_set_bits (subnet_mask);
- }
- break;
- case 3: /* router address */
- {
- u32 router_address = o->data_as_u32[0];
- c->router_address.as_u32 = router_address;
- }
- break;
-
- case 12: /* hostname */
- {
- /* Replace the existing hostname if necessary */
- vec_free (c->hostname);
- vec_validate (c->hostname, o->length - 1);
- clib_memcpy (c->hostname, o->data, o->length);
- }
- break;
-
- /* $$$$ Your message in this space, parse more options */
- default:
- break;
- }
+ {
+ case 53: /* dhcp message type */
+ dhcp_message_type = o->data[0];
+ break;
+
+ case 51: /* lease time */
+ {
+ u32 lease_time_in_seconds =
+ clib_host_to_net_u32 (o->data_as_u32[0]);
+ c->lease_expires = now + (f64) lease_time_in_seconds;
+ c->lease_lifetime = lease_time_in_seconds;
+ /* Set a sensible default, in case we don't get opt 58 */
+ c->lease_renewal_interval = lease_time_in_seconds / 2;
+ }
+ break;
+
+ case 58: /* lease renew time in seconds */
+ {
+ u32 lease_renew_time_in_seconds =
+ clib_host_to_net_u32 (o->data_as_u32[0]);
+ c->lease_renewal_interval = lease_renew_time_in_seconds;
+ }
+ break;
+
+ case 54: /* dhcp server address */
+ c->dhcp_server.as_u32 = o->data_as_u32[0];
+ break;
+
+ case 1: /* subnet mask */
+ {
+ u32 subnet_mask = clib_host_to_net_u32 (o->data_as_u32[0]);
+ c->subnet_mask_width = count_set_bits (subnet_mask);
+ }
+ break;
+ case 3: /* router address */
+ {
+ u32 router_address = o->data_as_u32[0];
+ c->router_address.as_u32 = router_address;
+ }
+ break;
+
+ case 12: /* hostname */
+ {
+ /* Replace the existing hostname if necessary */
+ vec_free (c->hostname);
+ vec_validate (c->hostname, o->length - 1);
+ clib_memcpy (c->hostname, o->data, o->length);
+ }
+ break;
+
+ /* $$$$ Your message in this space, parse more options */
+ default:
+ break;
+ }
o = (dhcp_option_t *) (((uword) o) + (o->length + 2));
}
{
case DHCP_DISCOVER:
if (dhcp_message_type != DHCP_PACKET_OFFER)
- {
- clib_warning ("sw_if_index %d state %U message type %d",
- c->sw_if_index, format_dhcp_client_state,
- c->state, dhcp_message_type);
- c->next_transmit = now + 5.0;
- break;
- }
+ {
+ clib_warning ("sw_if_index %d state %U message type %d",
+ c->sw_if_index, format_dhcp_client_state,
+ c->state, dhcp_message_type);
+ c->next_transmit = now + 5.0;
+ break;
+ }
/*
* in order to accept unicasted ACKs we need to configure the offered
* address on the interface. However, at this point we may not know the
/* Received an offer, go send a request */
c->state = DHCP_REQUEST;
c->retry_count = 0;
- c->next_transmit = 0; /* send right now... */
+ c->next_transmit = 0; /* send right now... */
/* Poke the client process, which will send the request */
- uword client_id = c - dcm->clients;
+ uword client_id = c - dcm->clients;
vl_api_rpc_call_main_thread (dhcp_client_proc_callback,
- (u8 *) &client_id, sizeof (uword));
+ (u8 *) & client_id, sizeof (uword));
break;
case DHCP_BOUND:
case DHCP_REQUEST:
if (dhcp_message_type != DHCP_PACKET_ACK)
- {
- clib_warning ("sw_if_index %d state %U message type %d",
- c->sw_if_index, format_dhcp_client_state,
- c->state, dhcp_message_type);
- c->next_transmit = now + 5.0;
- break;
- }
+ {
+ clib_warning ("sw_if_index %d state %U message type %d",
+ c->sw_if_index, format_dhcp_client_state,
+ c->state, dhcp_message_type);
+ c->next_transmit = now + 5.0;
+ break;
+ }
/* 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;
-
- /* replace the temporary RX address with the correct subnet */
- dhcp_client_remove_rx_address (dcm, c);
- dhcp_client_acquire_address (dcm, c);
-
- /*
- * Configure default IP route:
- */
- if (c->router_address.as_u32)
+ {
+ void (*fp) (u32, u32, u8 *, u8, u8, u8 *, u8 *, u8 *) =
+ c->event_callback;
+
+ /* replace the temporary RX address with the correct subnet */
+ dhcp_client_remove_rx_address (dcm, c);
+ dhcp_client_acquire_address (dcm, c);
+
+ /*
+ * 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,
+ 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,
+ ip46_address_t nh = {
+ .ip4 = c->router_address,
};
- 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_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);
}
- /*
- * 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 */
- }
+ /*
+ * 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 */
+ }
c->state = DHCP_BOUND;
c->retry_count = 0;
break;
default:
- clib_warning ("client %d bogus state %d",
- c - dcm->clients, c->state);
+ clib_warning ("client %d bogus state %d", c - dcm->clients, c->state);
break;
}
return 1;
}
-static void
-send_dhcp_pkt (dhcp_client_main_t * dcm, dhcp_client_t * c,
- dhcp_packet_type_t type, int is_broadcast)
+static void
+send_dhcp_pkt (dhcp_client_main_t * dcm, dhcp_client_t * c,
+ dhcp_packet_type_t type, int is_broadcast)
{
- vlib_main_t * vm = dcm->vlib_main;
- vnet_main_t * vnm = dcm->vnet_main;
- vnet_hw_interface_t * hw = vnet_get_sup_hw_interface (vnm, c->sw_if_index);
- vnet_sw_interface_t * sup_sw
+ vlib_main_t *vm = dcm->vlib_main;
+ vnet_main_t *vnm = dcm->vnet_main;
+ vnet_hw_interface_t *hw = vnet_get_sup_hw_interface (vnm, c->sw_if_index);
+ vnet_sw_interface_t *sup_sw
= vnet_get_sup_sw_interface (vnm, c->sw_if_index);
- vnet_sw_interface_t * sw = vnet_get_sw_interface (vnm, c->sw_if_index);
- vlib_buffer_t * b;
+ vnet_sw_interface_t *sw = vnet_get_sw_interface (vnm, c->sw_if_index);
+ vlib_buffer_t *b;
u32 bi;
- ip4_header_t * ip;
- udp_header_t * udp;
- dhcp_header_t * dhcp;
- u32 * to_next;
- vlib_frame_t * f;
- dhcp_option_t * o;
+ ip4_header_t *ip;
+ udp_header_t *udp;
+ dhcp_header_t *dhcp;
+ u32 *to_next;
+ vlib_frame_t *f;
+ dhcp_option_t *o;
u16 udp_length, ip_length;
/* Interface(s) down? */
if ((sw->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) == 0)
return;
- if (vlib_buffer_alloc (vm, &bi, 1) != 1) {
- clib_warning ("buffer allocation failure");
- c->next_transmit = 0;
- return;
- }
-
+ if (vlib_buffer_alloc (vm, &bi, 1) != 1)
+ {
+ clib_warning ("buffer allocation failure");
+ c->next_transmit = 0;
+ return;
+ }
+
/* Build a dhcpv4 pkt from whole cloth */
b = vlib_get_buffer (vm, bi);
ASSERT (b->current_data == 0);
- vnet_buffer(b)->sw_if_index[VLIB_RX] = c->sw_if_index;
- if (is_broadcast)
+ vnet_buffer (b)->sw_if_index[VLIB_RX] = c->sw_if_index;
+ if (is_broadcast)
{
f = vlib_get_frame_to_node (vm, hw->output_node_index);
- vnet_buffer(b)->sw_if_index[VLIB_TX] = c->sw_if_index;
- clib_memcpy (b->data, c->l2_rewrite, vec_len(c->l2_rewrite));
+ vnet_buffer (b)->sw_if_index[VLIB_TX] = c->sw_if_index;
+ clib_memcpy (b->data, c->l2_rewrite, vec_len (c->l2_rewrite));
ip = (void *)
- (((u8 *)vlib_buffer_get_current (b)) + vec_len (c->l2_rewrite));
+ (((u8 *) vlib_buffer_get_current (b)) + vec_len (c->l2_rewrite));
}
else
{
f = vlib_get_frame_to_node (vm, ip4_lookup_node.index);
- vnet_buffer(b)->sw_if_index[VLIB_TX] = ~0; /* use interface VRF */
+ vnet_buffer (b)->sw_if_index[VLIB_TX] = ~0; /* use interface VRF */
ip = vlib_buffer_get_current (b);
}
vlib_put_frame_to_node (vm, hw->output_node_index, f);
else
vlib_put_frame_to_node (vm, ip4_lookup_node.index, f);
-
- udp = (udp_header_t *)(ip+1);
- dhcp = (dhcp_header_t *)(udp+1);
+
+ udp = (udp_header_t *) (ip + 1);
+ dhcp = (dhcp_header_t *) (udp + 1);
/* $$$ optimize, maybe */
memset (ip, 0, sizeof (*ip) + sizeof (*udp) + sizeof (*dhcp));
ip->ip_version_and_header_length = 0x45;
ip->ttl = 128;
ip->protocol = IP_PROTOCOL_UDP;
-
+
if (is_broadcast)
{
/* src = 0.0.0.0, dst = 255.255.255.255 */
if (is_broadcast == 0)
dhcp->client_ip_address.as_u32 = c->leased_address.as_u32;
- dhcp->opcode = 1; /* request, all we send */
- dhcp->hardware_type = 1; /* ethernet */
- dhcp->hardware_address_length = 6;
- dhcp->transaction_identifier = c->transaction_id;
- dhcp->flags = clib_host_to_net_u16(is_broadcast ? DHCP_FLAG_BROADCAST : 0);
+ dhcp->opcode = 1; /* request, all we send */
+ dhcp->hardware_type = 1; /* ethernet */
+ dhcp->hardware_address_length = 6;
+ dhcp->transaction_identifier = c->transaction_id;
+ dhcp->flags = clib_host_to_net_u16 (is_broadcast ? DHCP_FLAG_BROADCAST : 0);
dhcp->magic_cookie.as_u32 = DHCP_MAGIC;
-
- o = (dhcp_option_t * )dhcp->options;
+
+ o = (dhcp_option_t *) dhcp->options;
/* Send option 53, the DHCP message type */
o->option = DHCP_PACKET_OPTION_MSG_TYPE;
o = (dhcp_option_t *) (((uword) o) + (o->length + 2));
/* Send option 57, max msg length */
- if (0 /* not needed, apparently */)
+ if (0 /* not needed, apparently */ )
{
o->option = 57;
o->length = 2;
{
- u16 *o2 = (u16 *) o->data;
- *o2 = clib_host_to_net_u16 (1152);
- o = (dhcp_option_t *) (((uword) o) + (o->length + 2));
+ u16 *o2 = (u16 *) o->data;
+ *o2 = clib_host_to_net_u16 (1152);
+ o = (dhcp_option_t *) (((uword) o) + (o->length + 2));
}
}
o->option = 61;
o->length = vec_len (c->client_identifier);
clib_memcpy (o->data, c->client_identifier,
- vec_len (c->client_identifier));
+ vec_len (c->client_identifier));
o = (dhcp_option_t *) (((uword) o) + (o->length + 2));
}
/* $$ maybe send the client s/w version if anyone cares */
- /*
+ /*
* send option 55, parameter request list
* The current list - see below, matches the Linux dhcp client's list
* Any specific dhcp server config and/or dhcp server may or may
*/
o->option = 55;
o->length = vec_len (c->option_55_data);
- clib_memcpy (o->data, c->option_55_data, vec_len(c->option_55_data));
+ clib_memcpy (o->data, c->option_55_data, vec_len (c->option_55_data));
o = (dhcp_option_t *) (((uword) o) + (o->length + 2));
/* End of list */
o->option = 0xff;
o->length = 0;
o++;
-
- b->current_length = ((u8 *)o) - b->data;
+
+ b->current_length = ((u8 *) o) - b->data;
/* fix ip length, checksum and udp length */
ip_length = vlib_buffer_length_in_chain (vm, b);
if (is_broadcast)
- ip_length -= vec_len (c->l2_rewrite);
+ ip_length -= vec_len (c->l2_rewrite);
- ip->length = clib_host_to_net_u16(ip_length);
- ip->checksum = ip4_header_checksum(ip);
+ ip->length = clib_host_to_net_u16 (ip_length);
+ ip->checksum = ip4_header_checksum (ip);
udp_length = ip_length - (sizeof (*ip));
udp->length = clib_host_to_net_u16 (udp_length);
}
-static int
+static int
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.
*/
- send_dhcp_pkt (dcm, c, DHCP_PACKET_DISCOVER, 1 /* is_broadcast */);
+ send_dhcp_pkt (dcm, c, DHCP_PACKET_DISCOVER, 1 /* is_broadcast */ );
c->retry_count++;
if (c->retry_count > 10)
c->next_transmit = now + 1.0;
return 0;
}
-
-static int
+
+static int
dhcp_request_state (dhcp_client_main_t * dcm, dhcp_client_t * c, f64 now)
-{
+{
/*
* State machine "REQUEST" state. Send a dhcp request packet,
* eventually drop back to the discover state.
*/
- send_dhcp_pkt (dcm, c, DHCP_PACKET_REQUEST, 1 /* is_broadcast */);
+ send_dhcp_pkt (dcm, c, DHCP_PACKET_REQUEST, 1 /* is_broadcast */ );
c->retry_count++;
- if (c->retry_count > 7 /* lucky you */)
+ if (c->retry_count > 7 /* lucky you */ )
{
c->state = DHCP_DISCOVER;
c->next_transmit = now;
return 0;
}
-static int
+static int
dhcp_bound_state (dhcp_client_main_t * dcm, dhcp_client_t * c, f64 now)
{
/*
* eventually, when the lease expires, forget the dhcp data
* and go back to the stone age.
*/
- send_dhcp_pkt (dcm, c, DHCP_PACKET_REQUEST, 0 /* is_broadcast */);
-
+ send_dhcp_pkt (dcm, c, DHCP_PACKET_REQUEST, 0 /* is_broadcast */ );
+
c->retry_count++;
if (c->retry_count > 10)
c->next_transmit = now + 5.0;
else
c->next_transmit = now + 1.0;
-
+
if (now > c->lease_expires)
{
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,
+ {
+ 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,
+ .ip4 = c->router_address,
};
- fib_table_entry_path_remove(fib_table_get_index_for_sw_if_index(
- FIB_PROTOCOL_IP4,
- c->sw_if_index),
- &all_0s,
- FIB_SOURCE_DHCP,
- DPO_PROTO_IP4,
- &nh,
- c->sw_if_index,
- ~0,
- 1,
- FIB_ROUTE_PATH_FLAG_NONE);
+ fib_table_entry_path_remove (fib_table_get_index_for_sw_if_index
+ (FIB_PROTOCOL_IP4, c->sw_if_index),
+ &all_0s, FIB_SOURCE_DHCP,
+ DPO_PROTO_IP4, &nh, c->sw_if_index, ~0,
+ 1, FIB_ROUTE_PATH_FLAG_NONE);
}
dhcp_client_release_address (dcm, c);
return 0;
}
-static f64 dhcp_client_sm (f64 now, f64 timeout, uword pool_index)
+static f64
+dhcp_client_sm (f64 now, f64 timeout, uword pool_index)
{
- dhcp_client_main_t * dcm = &dhcp_client_main;
- dhcp_client_t * c;
+ dhcp_client_main_t *dcm = &dhcp_client_main;
+ dhcp_client_t *c;
/* deleted, pooched, yadda yadda yadda */
if (pool_is_free_index (dcm->clients, pool_index))
if (now < c->next_transmit)
return timeout;
- again:
+again:
switch (c->state)
{
- case DHCP_DISCOVER: /* send a discover */
+ case DHCP_DISCOVER: /* send a discover */
if (dhcp_discover_state (dcm, c, now))
- goto again;
+ goto again;
break;
- case DHCP_REQUEST: /* send a request */
+ case DHCP_REQUEST: /* send a request */
if (dhcp_request_state (dcm, c, now))
- goto again;
+ goto again;
break;
-
- case DHCP_BOUND: /* bound, renew needed? */
+
+ case DHCP_BOUND: /* bound, renew needed? */
if (dhcp_bound_state (dcm, c, now))
- goto again;
+ goto again;
break;
-
+
default:
- clib_warning ("dhcp client %d bogus state %d",
- c - dcm->clients, c->state);
+ clib_warning ("dhcp client %d bogus state %d",
+ c - dcm->clients, c->state);
break;
}
-
+
if (c->next_transmit < now + timeout)
return c->next_transmit - now;
static uword
dhcp_client_process (vlib_main_t * vm,
- vlib_node_runtime_t * rt,
- vlib_frame_t * f)
+ vlib_node_runtime_t * rt, vlib_frame_t * f)
{
f64 timeout = 100.0;
f64 now;
uword event_type;
- uword * event_data = 0;
- dhcp_client_main_t * dcm = &dhcp_client_main;
- dhcp_client_t * c;
+ uword *event_data = 0;
+ dhcp_client_main_t *dcm = &dhcp_client_main;
+ dhcp_client_t *c;
int i;
while (1)
now = vlib_time_now (vm);
switch (event_type)
- {
- case EVENT_DHCP_CLIENT_WAKEUP:
- for (i = 0; i < vec_len (event_data); i++)
- timeout = dhcp_client_sm (now, timeout, event_data[i]);
- break;
-
- case ~0:
- pool_foreach (c, dcm->clients,
- ({
- timeout = dhcp_client_sm (now, timeout,
- (uword)(c - dcm->clients));
- }));
- if (pool_elts (dcm->clients) == 0)
- timeout = 100.0;
- break;
- }
+ {
+ case EVENT_DHCP_CLIENT_WAKEUP:
+ for (i = 0; i < vec_len (event_data); i++)
+ timeout = dhcp_client_sm (now, timeout, event_data[i]);
+ break;
+
+ case ~0:
+ pool_foreach (c, dcm->clients, (
+ {
+ timeout =
+ dhcp_client_sm (now, timeout,
+ (uword) (c -
+ dcm->clients));
+ }
+ ));
+ if (pool_elts (dcm->clients) == 0)
+ timeout = 100.0;
+ break;
+ }
vec_reset_length (event_data);
}
return 0;
}
+/* *INDENT-OFF* */
VLIB_REGISTER_NODE (dhcp_client_process_node,static) = {
.function = dhcp_client_process,
.type = VLIB_NODE_TYPE_PROCESS,
.name = "dhcp-client-process",
.process_log2_n_stack_bytes = 16,
};
+/* *INDENT-ON* */
-static u8 * format_dhcp_client_state (u8 * s, va_list * va)
+static u8 *
+format_dhcp_client_state (u8 * s, va_list * va)
{
dhcp_client_state_t state = va_arg (*va, dhcp_client_state_t);
- char * str = "BOGUS!";
+ char *str = "BOGUS!";
switch (state)
{
return s;
}
-static u8 * format_dhcp_client (u8 * s, va_list * va)
+static u8 *
+format_dhcp_client (u8 * s, va_list * va)
{
- dhcp_client_main_t * dcm = va_arg (*va, dhcp_client_main_t *);
- dhcp_client_t * c = va_arg (*va, dhcp_client_t *);
+ dhcp_client_main_t *dcm = va_arg (*va, dhcp_client_main_t *);
+ dhcp_client_t *c = va_arg (*va, dhcp_client_t *);
int verbose = va_arg (*va, int);
- s = format (s, "[%d] %U state %U ", c - dcm->clients,
- format_vnet_sw_if_index_name, dcm->vnet_main, c->sw_if_index,
- format_dhcp_client_state, c->state);
+ s = format (s, "[%d] %U state %U ", c - dcm->clients,
+ format_vnet_sw_if_index_name, dcm->vnet_main, c->sw_if_index,
+ format_dhcp_client_state, c->state);
if (c->leased_address.as_u32)
s = format (s, "addr %U/%d gw %U\n",
- format_ip4_address, &c->leased_address,
- c->subnet_mask_width, format_ip4_address, &c->router_address);
+ format_ip4_address, &c->leased_address,
+ c->subnet_mask_width, format_ip4_address, &c->router_address);
else
s = format (s, "no address\n");
if (verbose)
{
s = format (s, "retry count %d, next xmt %.2f",
- c->retry_count, c->next_transmit);
+ c->retry_count, c->next_transmit);
}
return s;
}
static clib_error_t *
show_dhcp_client_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
{
- dhcp_client_main_t * dcm = &dhcp_client_main;
- dhcp_client_t * c;
+ dhcp_client_main_t *dcm = &dhcp_client_main;
+ dhcp_client_t *c;
int verbose = 0;
u32 sw_if_index = ~0;
- uword * p;
+ uword *p;
- while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
- if (unformat (input, "intfc %U",
- unformat_vnet_sw_interface, dcm->vnet_main,
- &sw_if_index))
- ;
+ if (unformat (input, "intfc %U",
+ unformat_vnet_sw_interface, dcm->vnet_main, &sw_if_index))
+ ;
else if (unformat (input, "verbose"))
- verbose = 1;
+ verbose = 1;
else
- break;
+ break;
}
if (sw_if_index != ~0)
{
p = hash_get (dcm->client_by_sw_if_index, sw_if_index);
if (p == 0)
- return clib_error_return (0, "dhcp client not configured");
+ return clib_error_return (0, "dhcp client not configured");
c = pool_elt_at_index (dcm->clients, p[0]);
vlib_cli_output (vm, "%U", format_dhcp_client, dcm, c, verbose);
return 0;
}
- pool_foreach (c, dcm->clients,
- ({
- vlib_cli_output (vm, "%U", format_dhcp_client, dcm, c, verbose);
- }));
-
+ pool_foreach (c, dcm->clients, (
+ {
+ vlib_cli_output (vm, "%U",
+ format_dhcp_client, dcm,
+ c, verbose);
+ }
+ ));
+
return 0;
}
+/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_dhcp_client_command, static) = {
.path = "show dhcp client",
.short_help = "show dhcp client [intfc <intfc>][verbose]",
.function = show_dhcp_client_command_fn,
};
+/* *INDENT-ON* */
-int dhcp_client_add_del (dhcp_client_add_del_args_t * a)
+int
+dhcp_client_add_del (dhcp_client_add_del_args_t * a)
{
- dhcp_client_main_t * dcm = &dhcp_client_main;
- vlib_main_t * vm = dcm->vlib_main;
- dhcp_client_t * c;
- uword * p;
- fib_prefix_t all_1s =
- {
- .fp_len = 32,
- .fp_addr.ip4.as_u32 = 0xffffffff,
- .fp_proto = FIB_PROTOCOL_IP4,
+ dhcp_client_main_t *dcm = &dhcp_client_main;
+ vlib_main_t *vm = dcm->vlib_main;
+ dhcp_client_t *c;
+ uword *p;
+ fib_prefix_t all_1s = {
+ .fp_len = 32,
+ .fp_addr.ip4.as_u32 = 0xffffffff,
+ .fp_proto = FIB_PROTOCOL_IP4,
};
- fib_prefix_t all_0s =
- {
- .fp_len = 0,
- .fp_addr.ip4.as_u32 = 0x0,
- .fp_proto = FIB_PROTOCOL_IP4,
+ fib_prefix_t all_0s = {
+ .fp_len = 0,
+ .fp_addr.ip4.as_u32 = 0x0,
+ .fp_proto = FIB_PROTOCOL_IP4,
};
p = hash_get (dcm->client_by_sw_if_index, a->sw_if_index);
c->option_55_data = a->option_55_data;
c->hostname = a->hostname;
c->client_identifier = a->client_identifier;
- do {
- c->transaction_id = random_u32 (&dcm->seed);
- } while (c->transaction_id == 0);
+ do
+ {
+ c->transaction_id = random_u32 (&dcm->seed);
+ }
+ while (c->transaction_id == 0);
set_l2_rewrite (dcm, c);
hash_set (dcm->client_by_sw_if_index, a->sw_if_index, c - dcm->clients);
/* this add is ref counted by FIB so we can add for each itf */
- fib_table_entry_special_add(fib_table_get_index_for_sw_if_index(
- FIB_PROTOCOL_IP4,
- c->sw_if_index),
- &all_1s,
- FIB_SOURCE_DHCP,
- FIB_ENTRY_FLAG_LOCAL);
-
- /*
+ fib_table_entry_special_add (fib_table_get_index_for_sw_if_index
+ (FIB_PROTOCOL_IP4, c->sw_if_index),
+ &all_1s, FIB_SOURCE_DHCP,
+ FIB_ENTRY_FLAG_LOCAL);
+
+ /*
* enable the interface to RX IPv4 packets
* this is also ref counted
*/
ip4_sw_interface_enable_disable (c->sw_if_index, 1);
- vlib_process_signal_event (vm, dhcp_client_process_node.index,
- EVENT_DHCP_CLIENT_WAKEUP, c - dcm->clients);
+ vlib_process_signal_event (vm, dhcp_client_process_node.index,
+ EVENT_DHCP_CLIENT_WAKEUP, c - dcm->clients);
}
else
{
c = pool_elt_at_index (dcm->clients, p[0]);
- fib_table_entry_special_remove(fib_table_get_index_for_sw_if_index(
- FIB_PROTOCOL_IP4,
- c->sw_if_index),
- &all_1s,
- FIB_SOURCE_DHCP);
+ fib_table_entry_special_remove (fib_table_get_index_for_sw_if_index
+ (FIB_PROTOCOL_IP4, c->sw_if_index),
+ &all_1s, FIB_SOURCE_DHCP);
if (c->router_address.as_u32)
- {
+ {
ip46_address_t nh = {
- .ip4 = c->router_address,
+ .ip4 = c->router_address,
};
- fib_table_entry_path_remove(fib_table_get_index_for_sw_if_index(
- FIB_PROTOCOL_IP4,
- c->sw_if_index),
- &all_0s,
- FIB_SOURCE_DHCP,
- DPO_PROTO_IP4,
- &nh,
- c->sw_if_index,
- ~0,
- 1,
- FIB_ROUTE_PATH_FLAG_NONE);
- }
+ fib_table_entry_path_remove (fib_table_get_index_for_sw_if_index
+ (FIB_PROTOCOL_IP4, c->sw_if_index),
+ &all_0s, FIB_SOURCE_DHCP,
+ DPO_PROTO_IP4, &nh, c->sw_if_index, ~0,
+ 1, FIB_ROUTE_PATH_FLAG_NONE);
+ }
dhcp_client_remove_rx_address (dcm, c);
dhcp_client_release_address (dcm, c);
ip4_sw_interface_enable_disable (c->sw_if_index, 0);
int
dhcp_client_config (vlib_main_t * vm,
- u32 sw_if_index,
- u8 * hostname,
- u8 * client_id,
- u32 is_add,
- u32 client_index,
- void * event_callback,
- u32 pid)
+ u32 sw_if_index,
+ u8 * hostname,
+ u8 * client_id,
+ u32 is_add,
+ u32 client_index, void *event_callback, u32 pid)
{
dhcp_client_add_del_args_t _a, *a = &_a;
int rv;
a->client_index = client_index;
a->pid = pid;
a->event_callback = event_callback;
- vec_validate(a->hostname, strlen((char *)hostname) - 1);
- strncpy((char *)a->hostname, (char *)hostname, vec_len(a->hostname));
- vec_validate(a->client_identifier, strlen((char *)client_id) - 1);
- strncpy((char *)a->client_identifier, (char *)client_id, vec_len(a->client_identifier));
+ vec_validate (a->hostname, strlen ((char *) hostname) - 1);
+ strncpy ((char *) a->hostname, (char *) hostname, vec_len (a->hostname));
+ vec_validate (a->client_identifier, strlen ((char *) client_id) - 1);
+ strncpy ((char *) a->client_identifier, (char *) client_id,
+ vec_len (a->client_identifier));
- /*
+ /*
* Option 55 request list. These data precisely match
* the Ubuntu dhcp client. YMMV.
*/
vec_free (a->option_55_data);
if (is_add)
- clib_warning ("dhcp client already enabled on intf_idx %d",
- sw_if_index);
+ clib_warning ("dhcp client already enabled on intf_idx %d",
+ sw_if_index);
else
- clib_warning ("dhcp client not enabled on on intf_idx %d",
- sw_if_index);
+ clib_warning ("dhcp client not enabled on on intf_idx %d",
+ sw_if_index);
break;
default:
static clib_error_t *
dhcp_client_set_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
{
- dhcp_client_main_t * dcm = &dhcp_client_main;
+ dhcp_client_main_t *dcm = &dhcp_client_main;
u32 sw_if_index;
- u8 * hostname = 0;
+ u8 *hostname = 0;
u8 sw_if_index_set = 0;
int is_add = 1;
dhcp_client_add_del_args_t _a, *a = &_a;
int rv;
- while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
- if (unformat (input, "intfc %U",
- unformat_vnet_sw_interface, dcm->vnet_main,
- &sw_if_index))
- sw_if_index_set = 1;
+ if (unformat (input, "intfc %U",
+ unformat_vnet_sw_interface, dcm->vnet_main, &sw_if_index))
+ sw_if_index_set = 1;
else if (unformat (input, "hostname %v", &hostname))
- ;
+ ;
else if (unformat (input, "del"))
- is_add = 0;
+ is_add = 0;
else
- break;
+ break;
}
if (sw_if_index_set == 0)
a->hostname = hostname;
a->client_identifier = format (0, "vpe 1.0%c", 0);
- /*
+ /*
* Option 55 request list. These data precisely match
* the Ubuntu dhcp client. YMMV.
*/
vec_free (a->client_identifier);
vec_free (a->option_55_data);
if (is_add)
- return clib_error_return (0, "dhcp client already enabled on %U",
- format_vnet_sw_if_index_name,
- dcm->vnet_main, sw_if_index);
+ return clib_error_return (0, "dhcp client already enabled on %U",
+ format_vnet_sw_if_index_name,
+ dcm->vnet_main, sw_if_index);
else
- return clib_error_return (0, "dhcp client not enabled on %U",
- format_vnet_sw_if_index_name,
- dcm->vnet_main, sw_if_index);
+ return clib_error_return (0, "dhcp client not enabled on %U",
+ format_vnet_sw_if_index_name,
+ dcm->vnet_main, sw_if_index);
break;
default:
return 0;
}
+/* *INDENT-OFF* */
VLIB_CLI_COMMAND (dhcp_client_set_command, static) = {
.path = "set dhcp client",
.short_help = "set dhcp client [del] intfc <interface> [hostname <name>]",
.function = dhcp_client_set_command_fn,
};
+/* *INDENT-ON* */
static clib_error_t *
dhcp_client_init (vlib_main_t * vm)
{
- dhcp_client_main_t * dcm = &dhcp_client_main;
+ dhcp_client_main_t *dcm = &dhcp_client_main;
dcm->vlib_main = vm;
- dcm->vnet_main = vnet_get_main();
+ dcm->vnet_main = vnet_get_main ();
dcm->seed = 0xdeaddabe;
return 0;
}
VLIB_INIT_FUNCTION (dhcp_client_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
_(DHCP_REQUEST) \
_(DHCP_BOUND)
-typedef enum {
+typedef enum
+{
#define _(a) a,
foreach_dhcp_client_state
#undef _
} dhcp_client_state_t;
-typedef struct {
+typedef struct
+{
dhcp_client_state_t state;
/* the interface in question */
u32 transaction_id;
/* leased address, other learned info DHCP */
- ip4_address_t leased_address; /* from your_ip_address field */
+ ip4_address_t leased_address; /* from your_ip_address field */
ip4_address_t dhcp_server;
- u32 subnet_mask_width; /* option 1 */
- ip4_address_t router_address; /* option 3 */
- u32 lease_renewal_interval; /* option 51 */
- u32 lease_lifetime; /* option 59 */
+ u32 subnet_mask_width; /* option 1 */
+ ip4_address_t router_address; /* option 3 */
+ u32 lease_renewal_interval; /* option 51 */
+ u32 lease_lifetime; /* option 59 */
/* Requested data (option 55) */
- u8 * option_55_data;
+ u8 *option_55_data;
- u8 * l2_rewrite;
+ u8 *l2_rewrite;
/* hostname and software client identifiers */
- u8 * hostname;
- u8 * client_identifier; /* software version, e.g. vpe 1.0*/
+ u8 *hostname;
+ u8 *client_identifier; /* software version, e.g. vpe 1.0 */
/* Information used for event callback */
u32 client_index;
u32 pid;
- void * event_callback;
+ void *event_callback;
} dhcp_client_t;
-typedef struct {
+typedef struct
+{
/* DHCP client pool */
- dhcp_client_t * clients;
- uword * client_by_sw_if_index;
+ dhcp_client_t *clients;
+ uword *client_by_sw_if_index;
u32 seed;
/* convenience */
- vlib_main_t * vlib_main;
- vnet_main_t * vnet_main;
+ vlib_main_t *vlib_main;
+ vnet_main_t *vnet_main;
} dhcp_client_main_t;
-typedef struct {
+typedef struct
+{
int is_add;
u32 sw_if_index;
/* vectors, consumed by dhcp client code */
- u8 * hostname;
- u8 * client_identifier;
+ u8 *hostname;
+ u8 *client_identifier;
/* Bytes containing requested option numbers */
- u8 * option_55_data;
+ u8 *option_55_data;
/* Information used for event callback */
u32 client_index;
u32 pid;
- void * event_callback;
+ void *event_callback;
} dhcp_client_add_del_args_t;
extern dhcp_client_main_t dhcp_client_main;
#define EVENT_DHCP_CLIENT_WAKEUP 1
-int dhcp_client_for_us (u32 bi0,
- vlib_buffer_t * b0,
- ip4_header_t * ip0,
- udp_header_t * u0,
- dhcp_header_t * dh0);
+int dhcp_client_for_us (u32 bi0,
+ vlib_buffer_t * b0,
+ ip4_header_t * ip0,
+ udp_header_t * u0, dhcp_header_t * dh0);
int dhcp_client_config (vlib_main_t * vm,
- u32 sw_if_index,
- u8 * hostname,
- u8 * client_id,
- u32 is_add,
- u32 client_index,
- void *event_callback,
- u32 pid);
+ u32 sw_if_index,
+ u8 * hostname,
+ u8 * client_id,
+ u32 is_add,
+ u32 client_index, void *event_callback, u32 pid);
#endif /* included_dhcp_client_h */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
*/
#include <vnet/ip/ip4_packet.h>
-typedef struct {
- u8 opcode; /* 1 = request, 2 = reply */
- u8 hardware_type; /* 1 = ethernet */
+typedef struct
+{
+ u8 opcode; /* 1 = request, 2 = reply */
+ u8 hardware_type; /* 1 = ethernet */
u8 hardware_address_length;
u8 hops;
u32 transaction_identifier;
u16 flags;
#define DHCP_FLAG_BROADCAST (1<<15)
ip4_address_t client_ip_address;
- ip4_address_t your_ip_address; /* use this one */
+ ip4_address_t your_ip_address; /* use this one */
ip4_address_t server_ip_address;
- ip4_address_t gateway_ip_address; /* use option 3, not this one */
+ ip4_address_t gateway_ip_address; /* use option 3, not this one */
u8 client_hardware_address[16];
u8 server_name[64];
u8 boot_filename[128];
u8 options[0];
} dhcp_header_t;
-typedef struct {
+typedef struct
+{
u8 option;
u8 length;
- union {
+ union
+ {
u8 data[0];
u32 data_as_u32[0];
};
-} __attribute__((packed)) dhcp_option_t;
+} __attribute__ ((packed)) dhcp_option_t;
-typedef enum {
- DHCP_PACKET_DISCOVER=1,
+typedef enum
+{
+ DHCP_PACKET_DISCOVER = 1,
DHCP_PACKET_OFFER,
DHCP_PACKET_REQUEST,
- DHCP_PACKET_ACK=5,
+ DHCP_PACKET_ACK = 5,
} dhcp_packet_type_t;
typedef enum dhcp_packet_option_t_
{
- DHCP_PACKET_OPTION_MSG_TYPE = 53,
+ DHCP_PACKET_OPTION_MSG_TYPE = 53,
} dhcp_packet_option_t;
/* charming antique: 99.130.83.99 is the dhcp magic cookie */
#define DHCP_MAGIC (clib_host_to_net_u32(0x63825363))
#endif /* included_vnet_dhcp4_packet_h */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
#include <vnet/dhcp/client.h>
#include <vnet/fib/ip4_fib.h>
-static char * dhcp_proxy_error_strings[] = {
+static char *dhcp_proxy_error_strings[] = {
#define dhcp_proxy_error(n,s) s,
#include <vnet/dhcp/dhcp4_proxy_error.def>
#undef dhcp_proxy_error
_ (LOOKUP, "ip4-lookup") \
_ (SEND_TO_CLIENT, "dhcp-proxy-to-client")
-typedef enum {
+typedef enum
+{
#define _(s,n) DHCP_PROXY_TO_SERVER_INPUT_NEXT_##s,
foreach_dhcp_proxy_to_server_input_next
#undef _
- DHCP_PROXY_TO_SERVER_INPUT_N_NEXT,
+ DHCP_PROXY_TO_SERVER_INPUT_N_NEXT,
} dhcp_proxy_to_server_input_next_t;
-typedef struct {
+typedef struct
+{
/* 0 => to server, 1 => to client */
- int which;
+ int which;
ip4_address_t trace_ip4_address;
u32 error;
u32 sw_if_index;
{
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
- dhcp_proxy_trace_t * t = va_arg (*args, dhcp_proxy_trace_t *);
-
+ dhcp_proxy_trace_t *t = va_arg (*args, dhcp_proxy_trace_t *);
+
if (t->which == 0)
s = format (s, "DHCP proxy: sent to server %U\n",
- format_ip4_address, &t->trace_ip4_address, t->error);
+ format_ip4_address, &t->trace_ip4_address, t->error);
else
s = format (s, "DHCP proxy: broadcast to client from %U\n",
- format_ip4_address, &t->trace_ip4_address);
-
- if (t->error != (u32)~0)
+ format_ip4_address, &t->trace_ip4_address);
+
+ if (t->error != (u32) ~ 0)
s = format (s, " error: %s\n", dhcp_proxy_error_strings[t->error]);
s = format (s, " original_sw_if_index: %d, sw_if_index: %d\n",
- t->original_sw_if_index, t->sw_if_index);
-
+ t->original_sw_if_index, t->sw_if_index);
+
return s;
}
static u8 *
format_dhcp_proxy_header_with_length (u8 * s, va_list * args)
{
- dhcp_header_t * h = va_arg (*args, dhcp_header_t *);
+ dhcp_header_t *h = va_arg (*args, dhcp_header_t *);
u32 max_header_bytes = va_arg (*args, u32);
u32 header_bytes;
static uword
dhcp_proxy_to_server_input (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
{
- u32 n_left_from, next_index, * from, * to_next;
- dhcp_proxy_main_t * dpm = &dhcp_proxy_main;
+ u32 n_left_from, next_index, *from, *to_next;
+ dhcp_proxy_main_t *dpm = &dhcp_proxy_main;
from = vlib_frame_vector_args (from_frame);
n_left_from = from_frame->n_vectors;
- u32 pkts_to_server=0, pkts_to_client=0, pkts_no_server=0;
- u32 pkts_no_interface_address=0;
- u32 pkts_too_big=0;
- ip4_main_t * im = &ip4_main;
+ u32 pkts_to_server = 0, pkts_to_client = 0, pkts_no_server = 0;
+ u32 pkts_no_interface_address = 0;
+ u32 pkts_too_big = 0;
+ ip4_main_t *im = &ip4_main;
next_index = node->cached_next_index;
{
u32 n_left_to_next;
- vlib_get_next_frame (vm, node, next_index,
- to_next, n_left_to_next);
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
while (n_left_from > 0 && n_left_to_next > 0)
{
u32 bi0;
- vlib_buffer_t * b0;
- udp_header_t * u0;
- dhcp_header_t * h0;
- ip4_header_t * ip0;
+ vlib_buffer_t *b0;
+ udp_header_t *u0;
+ dhcp_header_t *h0;
+ ip4_header_t *ip0;
u32 next0;
- u32 old0, new0;
- ip_csum_t sum0;
- u32 error0 = (u32) ~0;
- u32 sw_if_index = 0;
- u32 original_sw_if_index = 0;
- u8 *end = NULL;
- u32 fib_index;
- dhcp_proxy_t *proxy;
- dhcp_server_t *server;
- u32 rx_sw_if_index;
- dhcp_option_t *o;
- u32 len = 0;
- vlib_buffer_free_list_t *fl;
- u8 is_discover = 0;
+ u32 old0, new0;
+ ip_csum_t sum0;
+ u32 error0 = (u32) ~ 0;
+ u32 sw_if_index = 0;
+ u32 original_sw_if_index = 0;
+ u8 *end = NULL;
+ u32 fib_index;
+ dhcp_proxy_t *proxy;
+ dhcp_server_t *server;
+ u32 rx_sw_if_index;
+ dhcp_option_t *o;
+ u32 len = 0;
+ vlib_buffer_free_list_t *fl;
+ u8 is_discover = 0;
bi0 = from[0];
from += 1;
b0 = vlib_get_buffer (vm, bi0);
- h0 = vlib_buffer_get_current (b0);
+ h0 = vlib_buffer_get_current (b0);
- /*
- * udp_local hands us the DHCP header, need udp hdr,
- * ip hdr to relay to server
- */
- vlib_buffer_advance (b0, -(sizeof(*u0)));
+ /*
+ * udp_local hands us the DHCP header, need udp hdr,
+ * ip hdr to relay to server
+ */
+ vlib_buffer_advance (b0, -(sizeof (*u0)));
u0 = vlib_buffer_get_current (b0);
- /* This blows. Return traffic has src_port = 67, dst_port = 67 */
- if (u0->src_port == clib_net_to_host_u16(UDP_DST_PORT_dhcp_to_server))
- {
- vlib_buffer_advance (b0, sizeof(*u0));
- next0 = DHCP_PROXY_TO_SERVER_INPUT_NEXT_SEND_TO_CLIENT;
- error0 = 0;
- pkts_to_client++;
- goto do_enqueue;
- }
-
- rx_sw_if_index = vnet_buffer(b0)->sw_if_index[VLIB_RX];
-
- fib_index = im->fib_index_by_sw_if_index [rx_sw_if_index];
- proxy = dhcp_get_proxy(dpm, fib_index, FIB_PROTOCOL_IP4);
-
- if (PREDICT_FALSE (NULL == proxy))
- {
- error0 = DHCP_PROXY_ERROR_NO_SERVER;
- next0 = DHCP_PROXY_TO_SERVER_INPUT_NEXT_DROP;
- pkts_no_server++;
- goto do_trace;
- }
-
- server = &proxy->dhcp_servers[0];
- vlib_buffer_advance (b0, -(sizeof(*ip0)));
- ip0 = vlib_buffer_get_current (b0);
-
- /* disable UDP checksum */
- u0->checksum = 0;
- sum0 = ip0->checksum;
- old0 = ip0->dst_address.as_u32;
- new0 = server->dhcp_server.ip4.as_u32;
- ip0->dst_address.as_u32 = server->dhcp_server.ip4.as_u32;
- sum0 = ip_csum_update (sum0, old0, new0,
- ip4_header_t /* structure */,
- dst_address /* changed member */);
- ip0->checksum = ip_csum_fold (sum0);
-
- sum0 = ip0->checksum;
- old0 = ip0->src_address.as_u32;
- new0 = proxy->dhcp_src_address.ip4.as_u32;
- ip0->src_address.as_u32 = new0;
- sum0 = ip_csum_update (sum0, old0, new0,
- ip4_header_t /* structure */,
- src_address /* changed member */);
- ip0->checksum = ip_csum_fold (sum0);
-
- /* Send to DHCP server via the configured FIB */
- vnet_buffer(b0)->sw_if_index[VLIB_TX] =
- server->server_fib_index;
-
- h0->gateway_ip_address.as_u32 = proxy->dhcp_src_address.ip4.as_u32;
- pkts_to_server++;
-
- o = (dhcp_option_t *) h0->options;
-
- fib_index = im->fib_index_by_sw_if_index
- [vnet_buffer(b0)->sw_if_index[VLIB_RX]];
-
- end = b0->data + b0->current_data + b0->current_length;
- /* TLVs are not performance-friendly... */
- while (o->option != 0xFF /* end of options */ && (u8 *)o < end)
- {
- if (DHCP_PACKET_OPTION_MSG_TYPE == o->option)
- {
- if (DHCP_PACKET_DISCOVER == o->data[0])
- {
- is_discover = 1;
- }
- }
- o = (dhcp_option_t *) (((uword) o) + (o->length + 2));
+ /* This blows. Return traffic has src_port = 67, dst_port = 67 */
+ if (u0->src_port ==
+ clib_net_to_host_u16 (UDP_DST_PORT_dhcp_to_server))
+ {
+ vlib_buffer_advance (b0, sizeof (*u0));
+ next0 = DHCP_PROXY_TO_SERVER_INPUT_NEXT_SEND_TO_CLIENT;
+ error0 = 0;
+ pkts_to_client++;
+ goto do_enqueue;
}
- fl = vlib_buffer_get_free_list (vm, vlib_buffer_get_free_list_index (b0));
- // start write at (option*)o, some packets have padding
- if (((u8 *)o - (u8 *)b0->data + VPP_DHCP_OPTION82_SIZE) > fl->n_data_bytes)
- {
- next0 = DHCP_PROXY_TO_SERVER_INPUT_NEXT_DROP;
- pkts_too_big++;
- goto do_trace;
+ rx_sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX];
+
+ fib_index = im->fib_index_by_sw_if_index[rx_sw_if_index];
+ proxy = dhcp_get_proxy (dpm, fib_index, FIB_PROTOCOL_IP4);
+
+ if (PREDICT_FALSE (NULL == proxy))
+ {
+ error0 = DHCP_PROXY_ERROR_NO_SERVER;
+ next0 = DHCP_PROXY_TO_SERVER_INPUT_NEXT_DROP;
+ pkts_no_server++;
+ goto do_trace;
}
- if ((o->option == 0xFF) && ((u8 *)o <= end))
- {
- vnet_main_t *vnm = vnet_get_main();
- u16 old_l0, new_l0;
- ip4_address_t _ia0, * ia0 = &_ia0;
- dhcp_vss_t *vss;
- vnet_sw_interface_t *swif;
- sw_if_index = 0;
- original_sw_if_index = 0;
-
- original_sw_if_index = sw_if_index =
- vnet_buffer(b0)->sw_if_index[VLIB_RX];
- swif = vnet_get_sw_interface (vnm, sw_if_index);
- if (swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
- sw_if_index = swif->unnumbered_sw_if_index;
-
- /*
- * Get the first ip4 address on the [client-side]
- * RX interface, if not unnumbered. otherwise use
- * the loopback interface's ip address.
- */
- ia0 = ip4_interface_first_address(&ip4_main, sw_if_index, 0);
-
- if (ia0 == 0)
- {
- error0 = DHCP_PROXY_ERROR_NO_INTERFACE_ADDRESS;
- next0 = DHCP_PROXY_TO_SERVER_INPUT_NEXT_DROP;
- pkts_no_interface_address++;
- goto do_trace;
- }
-
- /* Add option 82 */
- o->option = 82; /* option 82 */
- o->length = 12; /* 12 octets to follow */
- o->data[0] = 1; /* suboption 1, circuit ID (=FIB id) */
- o->data[1] = 4; /* length of suboption */
- u32 *o_ifid = (u32 *) &o->data[2];
+ server = &proxy->dhcp_servers[0];
+ vlib_buffer_advance (b0, -(sizeof (*ip0)));
+ ip0 = vlib_buffer_get_current (b0);
+
+ /* disable UDP checksum */
+ u0->checksum = 0;
+ sum0 = ip0->checksum;
+ old0 = ip0->dst_address.as_u32;
+ new0 = server->dhcp_server.ip4.as_u32;
+ ip0->dst_address.as_u32 = server->dhcp_server.ip4.as_u32;
+ sum0 = ip_csum_update (sum0, old0, new0,
+ ip4_header_t /* structure */ ,
+ dst_address /* changed member */ );
+ ip0->checksum = ip_csum_fold (sum0);
+
+ sum0 = ip0->checksum;
+ old0 = ip0->src_address.as_u32;
+ new0 = proxy->dhcp_src_address.ip4.as_u32;
+ ip0->src_address.as_u32 = new0;
+ sum0 = ip_csum_update (sum0, old0, new0,
+ ip4_header_t /* structure */ ,
+ src_address /* changed member */ );
+ ip0->checksum = ip_csum_fold (sum0);
+
+ /* Send to DHCP server via the configured FIB */
+ vnet_buffer (b0)->sw_if_index[VLIB_TX] = server->server_fib_index;
+
+ h0->gateway_ip_address.as_u32 = proxy->dhcp_src_address.ip4.as_u32;
+ pkts_to_server++;
+
+ o = (dhcp_option_t *) h0->options;
+
+ fib_index = im->fib_index_by_sw_if_index
+ [vnet_buffer (b0)->sw_if_index[VLIB_RX]];
+
+ end = b0->data + b0->current_data + b0->current_length;
+ /* TLVs are not performance-friendly... */
+ while (o->option != 0xFF /* end of options */ && (u8 *) o < end)
+ {
+ if (DHCP_PACKET_OPTION_MSG_TYPE == o->option)
+ {
+ if (DHCP_PACKET_DISCOVER == o->data[0])
+ {
+ is_discover = 1;
+ }
+ }
+ o = (dhcp_option_t *) (((uword) o) + (o->length + 2));
+ }
+
+ fl =
+ vlib_buffer_get_free_list (vm,
+ vlib_buffer_get_free_list_index (b0));
+ // start write at (option*)o, some packets have padding
+ if (((u8 *) o - (u8 *) b0->data + VPP_DHCP_OPTION82_SIZE) >
+ fl->n_data_bytes)
+ {
+ next0 = DHCP_PROXY_TO_SERVER_INPUT_NEXT_DROP;
+ pkts_too_big++;
+ goto do_trace;
+ }
+
+ if ((o->option == 0xFF) && ((u8 *) o <= end))
+ {
+ vnet_main_t *vnm = vnet_get_main ();
+ u16 old_l0, new_l0;
+ ip4_address_t _ia0, *ia0 = &_ia0;
+ dhcp_vss_t *vss;
+ vnet_sw_interface_t *swif;
+ sw_if_index = 0;
+ original_sw_if_index = 0;
+
+ original_sw_if_index = sw_if_index =
+ vnet_buffer (b0)->sw_if_index[VLIB_RX];
+ swif = vnet_get_sw_interface (vnm, sw_if_index);
+ if (swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
+ sw_if_index = swif->unnumbered_sw_if_index;
+
+ /*
+ * Get the first ip4 address on the [client-side]
+ * RX interface, if not unnumbered. otherwise use
+ * the loopback interface's ip address.
+ */
+ ia0 = ip4_interface_first_address (&ip4_main, sw_if_index, 0);
+
+ if (ia0 == 0)
+ {
+ error0 = DHCP_PROXY_ERROR_NO_INTERFACE_ADDRESS;
+ next0 = DHCP_PROXY_TO_SERVER_INPUT_NEXT_DROP;
+ pkts_no_interface_address++;
+ goto do_trace;
+ }
+
+ /* Add option 82 */
+ o->option = 82; /* option 82 */
+ o->length = 12; /* 12 octets to follow */
+ o->data[0] = 1; /* suboption 1, circuit ID (=FIB id) */
+ o->data[1] = 4; /* length of suboption */
+ u32 *o_ifid = (u32 *) & o->data[2];
*o_ifid = clib_host_to_net_u32 (original_sw_if_index);
- o->data[6] = 5; /* suboption 5 (client RX intfc address) */
- o->data[7] = 4; /* length 4 */
- u32 *o_addr = (u32 *) &o->data[8];
+ o->data[6] = 5; /* suboption 5 (client RX intfc address) */
+ o->data[7] = 4; /* length 4 */
+ u32 *o_addr = (u32 *) & o->data[8];
*o_addr = ia0->as_u32;
- o->data[12] = 0xFF;
+ o->data[12] = 0xFF;
- vss = dhcp_get_vss_info (dpm, fib_index, FIB_PROTOCOL_IP4);
- if (vss)
- {
- u32 id_len; /* length of VPN ID */
+ vss = dhcp_get_vss_info (dpm, fib_index, FIB_PROTOCOL_IP4);
+ if (vss)
+ {
+ u32 id_len; /* length of VPN ID */
if (vss->vss_type == VSS_TYPE_VPN_ID)
{
id_len = vec_len (vss->vpn_ascii_id);
memcpy (&o->data[15], vss->vpn_ascii_id, id_len);
}
- else /* must be VSS_TYPE_DEFAULT, no VPN ID */
- id_len = 0;
+ else /* must be VSS_TYPE_DEFAULT, no VPN ID */
+ id_len = 0;
- o->data[12] = 151; /* vss suboption */
+ o->data[12] = 151; /* vss suboption */
o->data[13] = id_len + 1; /* length: vss_type + id_len */
o->data[14] = vss->vss_type; /* vss option type */
o->data[15 + id_len] = 152; /* vss control suboption */
o->data[16 + id_len] = 0; /* length */
o->data[17 + id_len] = 0xFF; /* "end-of-options" (0xFF) */
/* 5 bytes for suboption headers 151+len, 152+len and 0xFF */
- o->length += id_len + 5;
- }
-
- len = o->length + 3;
- b0->current_length += len;
- /* Fix IP header length and checksum */
- old_l0 = ip0->length;
- new_l0 = clib_net_to_host_u16 (old_l0);
- new_l0 += len;
- new_l0 = clib_host_to_net_u16 (new_l0);
- ip0->length = new_l0;
- sum0 = ip0->checksum;
- sum0 = ip_csum_update (sum0, old_l0, new_l0, ip4_header_t,
- length /* changed member */);
- ip0->checksum = ip_csum_fold (sum0);
-
- /* Fix UDP length */
- new_l0 = clib_net_to_host_u16 (u0->length);
- new_l0 += len;
- u0->length = clib_host_to_net_u16 (new_l0);
- }
- else
+ o->length += id_len + 5;
+ }
+
+ len = o->length + 3;
+ b0->current_length += len;
+ /* Fix IP header length and checksum */
+ old_l0 = ip0->length;
+ new_l0 = clib_net_to_host_u16 (old_l0);
+ new_l0 += len;
+ new_l0 = clib_host_to_net_u16 (new_l0);
+ ip0->length = new_l0;
+ sum0 = ip0->checksum;
+ sum0 = ip_csum_update (sum0, old_l0, new_l0, ip4_header_t,
+ length /* changed member */ );
+ ip0->checksum = ip_csum_fold (sum0);
+
+ /* Fix UDP length */
+ new_l0 = clib_net_to_host_u16 (u0->length);
+ new_l0 += len;
+ u0->length = clib_host_to_net_u16 (new_l0);
+ }
+ else
{
- vlib_node_increment_counter
- (vm, dhcp_proxy_to_server_node.index,
- DHCP_PROXY_ERROR_OPTION_82_ERROR, 1);
+ vlib_node_increment_counter
+ (vm, dhcp_proxy_to_server_node.index,
+ DHCP_PROXY_ERROR_OPTION_82_ERROR, 1);
}
-
- next0 = DHCP_PROXY_TO_SERVER_INPUT_NEXT_LOOKUP;
-
- /*
- * If we have multiple servers configured and this is the
- * client's discover message, then send copies to each of
- * those servers
- */
- if (is_discover && vec_len(proxy->dhcp_servers) > 1)
- {
- u32 ii;
-
- for (ii = 1; ii < vec_len(proxy->dhcp_servers); ii++)
- {
- vlib_buffer_t *c0;
- u32 ci0;
-
- c0 = vlib_buffer_copy(vm, b0);
- ci0 = vlib_get_buffer_index(vm, c0);
- server = &proxy->dhcp_servers[ii];
-
- ip0 = vlib_buffer_get_current (c0);
-
- sum0 = ip0->checksum;
- old0 = ip0->dst_address.as_u32;
- new0 = server->dhcp_server.ip4.as_u32;
- ip0->dst_address.as_u32 = server->dhcp_server.ip4.as_u32;
- sum0 = ip_csum_update (sum0, old0, new0,
- ip4_header_t /* structure */,
- dst_address /* changed member */);
- ip0->checksum = ip_csum_fold (sum0);
-
- to_next[0] = ci0;
- to_next += 1;
- n_left_to_next -= 1;
-
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
- to_next, n_left_to_next,
- ci0, next0);
-
- if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
- {
- dhcp_proxy_trace_t *tr;
-
- tr = vlib_add_trace (vm, node, c0, sizeof (*tr));
- tr->which = 0; /* to server */
- tr->error = error0;
- tr->original_sw_if_index = original_sw_if_index;
- tr->sw_if_index = sw_if_index;
- if (next0 == DHCP_PROXY_TO_SERVER_INPUT_NEXT_LOOKUP)
- tr->trace_ip4_address.as_u32 = server->dhcp_server.ip4.as_u32;
+
+ next0 = DHCP_PROXY_TO_SERVER_INPUT_NEXT_LOOKUP;
+
+ /*
+ * If we have multiple servers configured and this is the
+ * client's discover message, then send copies to each of
+ * those servers
+ */
+ if (is_discover && vec_len (proxy->dhcp_servers) > 1)
+ {
+ u32 ii;
+
+ for (ii = 1; ii < vec_len (proxy->dhcp_servers); ii++)
+ {
+ vlib_buffer_t *c0;
+ u32 ci0;
+
+ c0 = vlib_buffer_copy (vm, b0);
+ ci0 = vlib_get_buffer_index (vm, c0);
+ server = &proxy->dhcp_servers[ii];
+
+ ip0 = vlib_buffer_get_current (c0);
+
+ sum0 = ip0->checksum;
+ old0 = ip0->dst_address.as_u32;
+ new0 = server->dhcp_server.ip4.as_u32;
+ ip0->dst_address.as_u32 = server->dhcp_server.ip4.as_u32;
+ sum0 = ip_csum_update (sum0, old0, new0,
+ ip4_header_t /* structure */ ,
+ dst_address /* changed member */ );
+ ip0->checksum = ip_csum_fold (sum0);
+
+ to_next[0] = ci0;
+ to_next += 1;
+ n_left_to_next -= 1;
+
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
+ to_next, n_left_to_next,
+ ci0, next0);
+
+ if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ dhcp_proxy_trace_t *tr;
+
+ tr = vlib_add_trace (vm, node, c0, sizeof (*tr));
+ tr->which = 0; /* to server */
+ tr->error = error0;
+ tr->original_sw_if_index = original_sw_if_index;
+ tr->sw_if_index = sw_if_index;
+ if (next0 == DHCP_PROXY_TO_SERVER_INPUT_NEXT_LOOKUP)
+ tr->trace_ip4_address.as_u32 =
+ server->dhcp_server.ip4.as_u32;
}
- if (PREDICT_FALSE(0 == n_left_to_next))
- {
- vlib_put_next_frame (vm, node, next_index,
- n_left_to_next);
- vlib_get_next_frame (vm, node, next_index,
- to_next, n_left_to_next);
- }
- }
- }
- do_trace:
- if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
- {
- dhcp_proxy_trace_t *tr = vlib_add_trace (vm, node,
- b0, sizeof (*tr));
- tr->which = 0; /* to server */
- tr->error = error0;
- tr->original_sw_if_index = original_sw_if_index;
- tr->sw_if_index = sw_if_index;
- if (next0 == DHCP_PROXY_TO_SERVER_INPUT_NEXT_LOOKUP)
- tr->trace_ip4_address.as_u32 =
- proxy->dhcp_servers[0].dhcp_server.ip4.as_u32;
- }
-
- do_enqueue:
+ if (PREDICT_FALSE (0 == n_left_to_next))
+ {
+ vlib_put_next_frame (vm, node, next_index,
+ n_left_to_next);
+ vlib_get_next_frame (vm, node, next_index,
+ to_next, n_left_to_next);
+ }
+ }
+ }
+ do_trace:
+ if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ dhcp_proxy_trace_t *tr = vlib_add_trace (vm, node,
+ b0, sizeof (*tr));
+ tr->which = 0; /* to server */
+ tr->error = error0;
+ tr->original_sw_if_index = original_sw_if_index;
+ tr->sw_if_index = sw_if_index;
+ if (next0 == DHCP_PROXY_TO_SERVER_INPUT_NEXT_LOOKUP)
+ tr->trace_ip4_address.as_u32 =
+ proxy->dhcp_servers[0].dhcp_server.ip4.as_u32;
+ }
+
+ do_enqueue:
to_next[0] = bi0;
to_next += 1;
n_left_to_next -= 1;
}
vlib_node_increment_counter (vm, dhcp_proxy_to_server_node.index,
- DHCP_PROXY_ERROR_RELAY_TO_CLIENT,
- pkts_to_client);
+ DHCP_PROXY_ERROR_RELAY_TO_CLIENT,
+ pkts_to_client);
+ vlib_node_increment_counter (vm, dhcp_proxy_to_server_node.index,
+ DHCP_PROXY_ERROR_RELAY_TO_SERVER,
+ pkts_to_server);
vlib_node_increment_counter (vm, dhcp_proxy_to_server_node.index,
- DHCP_PROXY_ERROR_RELAY_TO_SERVER,
- pkts_to_server);
+ DHCP_PROXY_ERROR_NO_SERVER, pkts_no_server);
vlib_node_increment_counter (vm, dhcp_proxy_to_server_node.index,
- DHCP_PROXY_ERROR_NO_SERVER,
- pkts_no_server);
+ DHCP_PROXY_ERROR_NO_INTERFACE_ADDRESS,
+ pkts_no_interface_address);
vlib_node_increment_counter (vm, dhcp_proxy_to_server_node.index,
- DHCP_PROXY_ERROR_NO_INTERFACE_ADDRESS,
- pkts_no_interface_address);
- vlib_node_increment_counter (vm, dhcp_proxy_to_server_node.index,
- DHCP_PROXY_ERROR_PKT_TOO_BIG,
- pkts_too_big);
+ DHCP_PROXY_ERROR_PKT_TOO_BIG, pkts_too_big);
return from_frame->n_vectors;
}
+/* *INDENT-OFF* */
VLIB_REGISTER_NODE (dhcp_proxy_to_server_node, static) = {
.function = dhcp_proxy_to_server_input,
.name = "dhcp-proxy-to-server",
.unformat_buffer = unformat_dhcp_proxy_header,
#endif
};
+/* *INDENT-ON* */
static uword
dhcp_proxy_to_client_input (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
{
- u32 n_left_from, * from;
+ u32 n_left_from, *from;
ethernet_main_t *em = ethernet_get_main (vm);
- dhcp_proxy_main_t * dpm = &dhcp_proxy_main;
- vnet_main_t * vnm = vnet_get_main();
- ip4_main_t * im = &ip4_main;
+ dhcp_proxy_main_t *dpm = &dhcp_proxy_main;
+ vnet_main_t *vnm = vnet_get_main ();
+ ip4_main_t *im = &ip4_main;
from = vlib_frame_vector_args (from_frame);
n_left_from = from_frame->n_vectors;
while (n_left_from > 0)
{
u32 bi0;
- vlib_buffer_t * b0;
- udp_header_t * u0;
- dhcp_header_t * h0;
- ip4_header_t * ip0 = 0;
- ip4_address_t * ia0 = 0;
+ vlib_buffer_t *b0;
+ udp_header_t *u0;
+ dhcp_header_t *h0;
+ ip4_header_t *ip0 = 0;
+ ip4_address_t *ia0 = 0;
u32 old0, new0;
ip_csum_t sum0;
ethernet_interface_t *ei0;
ethernet_header_t *mac0;
vnet_hw_interface_t *hi0;
vlib_frame_t *f0;
- u32 * to_next0;
+ u32 *to_next0;
u32 sw_if_index = ~0;
vnet_sw_interface_t *si0;
- u32 error0 = (u32)~0;
+ u32 error0 = (u32) ~ 0;
vnet_sw_interface_t *swif;
u32 fib_index;
dhcp_proxy_t *proxy;
dhcp_server_t *server;
- u32 original_sw_if_index = (u32) ~0;
+ u32 original_sw_if_index = (u32) ~ 0;
ip4_address_t relay_addr = {
- .as_u32 = 0,
+ .as_u32 = 0,
};
bi0 = from[0];
b0 = vlib_get_buffer (vm, bi0);
h0 = vlib_buffer_get_current (b0);
- /*
- * udp_local hands us the DHCP header, need udp hdr,
+ /*
+ * udp_local hands us the DHCP header, need udp hdr,
* ip hdr to relay to client
*/
- vlib_buffer_advance (b0, -(sizeof(*u0)));
+ vlib_buffer_advance (b0, -(sizeof (*u0)));
u0 = vlib_buffer_get_current (b0);
- vlib_buffer_advance (b0, -(sizeof(*ip0)));
+ vlib_buffer_advance (b0, -(sizeof (*ip0)));
ip0 = vlib_buffer_get_current (b0);
/* Consumed by dhcp client code? */
if (dhcp_client_for_us (bi0, b0, ip0, u0, h0))
- continue;
-
- if (1 /* dpm->insert_option_82 */)
- {
- dhcp_option_t *o = (dhcp_option_t *) h0->options;
- dhcp_option_t *sub;
-
- /* Parse through TLVs looking for option 82.
- The circuit-ID is the FIB number we need
- to track down the client-facing interface */
-
- while (o->option != 0xFF /* end of options */ &&
- (u8 *) o < (b0->data + b0->current_data + b0->current_length))
- {
- if (o->option == 82)
- {
- u32 vss_exist = 0;
- u32 vss_ctrl = 0;
- sub = (dhcp_option_t *) &o->data[0];
- while (sub->option != 0xFF /* end of options */ &&
- (u8 *) sub < (u8 *)(o + o->length)) {
- /* If this is one of ours, it will have
- total length 12, circuit-id suboption type,
- and the sw_if_index */
- if (sub->option == 1 && sub->length == 4)
- {
- sw_if_index = ((sub->data[0] << 24) |
- (sub->data[1] << 16) |
- (sub->data[2] << 8) |
- (sub->data[3]));
- }
- else if (sub->option == 5 && sub->length == 4)
- {
- relay_addr.as_u8[0] = sub->data[0];
- relay_addr.as_u8[1] = sub->data[1];
- relay_addr.as_u8[2] = sub->data[2];
- relay_addr.as_u8[3] = sub->data[3];
- }
- else if (sub->option == 151 &&
- sub->length == 7 &&
- sub->data[0] == 1)
- vss_exist = 1;
- else if (sub->option == 152 && sub->length == 0)
- vss_ctrl = 1;
- sub = (dhcp_option_t *)
- (((uword) sub) + (sub->length + 2));
- }
- if (vss_ctrl && vss_exist)
- vlib_node_increment_counter
- (vm, dhcp_proxy_to_client_node.index,
- DHCP_PROXY_ERROR_OPTION_82_VSS_NOT_PROCESSED, 1);
-
- }
- o = (dhcp_option_t *) (((uword) o) + (o->length + 2));
- }
- }
-
- if (sw_if_index == (u32)~0)
- {
- error0 = DHCP_PROXY_ERROR_NO_OPTION_82;
-
- drop_packet:
- vlib_node_increment_counter (vm, dhcp_proxy_to_client_node.index,
- error0, 1);
- f0 = vlib_get_frame_to_node (vm, dpm->error_drop_node_index);
- to_next0 = vlib_frame_vector_args (f0);
- to_next0[0] = bi0;
- f0->n_vectors = 1;
- vlib_put_frame_to_node (vm, dpm->error_drop_node_index, f0);
- goto do_trace;
- }
-
+ continue;
+
+ if (1 /* dpm->insert_option_82 */ )
+ {
+ dhcp_option_t *o = (dhcp_option_t *) h0->options;
+ dhcp_option_t *sub;
+
+ /* Parse through TLVs looking for option 82.
+ The circuit-ID is the FIB number we need
+ to track down the client-facing interface */
+
+ while (o->option != 0xFF /* end of options */ &&
+ (u8 *) o <
+ (b0->data + b0->current_data + b0->current_length))
+ {
+ if (o->option == 82)
+ {
+ u32 vss_exist = 0;
+ u32 vss_ctrl = 0;
+ sub = (dhcp_option_t *) & o->data[0];
+ while (sub->option != 0xFF /* end of options */ &&
+ (u8 *) sub < (u8 *) (o + o->length))
+ {
+ /* If this is one of ours, it will have
+ total length 12, circuit-id suboption type,
+ and the sw_if_index */
+ if (sub->option == 1 && sub->length == 4)
+ {
+ sw_if_index = ((sub->data[0] << 24) |
+ (sub->data[1] << 16) |
+ (sub->data[2] << 8) |
+ (sub->data[3]));
+ }
+ else if (sub->option == 5 && sub->length == 4)
+ {
+ relay_addr.as_u8[0] = sub->data[0];
+ relay_addr.as_u8[1] = sub->data[1];
+ relay_addr.as_u8[2] = sub->data[2];
+ relay_addr.as_u8[3] = sub->data[3];
+ }
+ else if (sub->option == 151 &&
+ sub->length == 7 && sub->data[0] == 1)
+ vss_exist = 1;
+ else if (sub->option == 152 && sub->length == 0)
+ vss_ctrl = 1;
+ sub = (dhcp_option_t *)
+ (((uword) sub) + (sub->length + 2));
+ }
+ if (vss_ctrl && vss_exist)
+ vlib_node_increment_counter
+ (vm, dhcp_proxy_to_client_node.index,
+ DHCP_PROXY_ERROR_OPTION_82_VSS_NOT_PROCESSED, 1);
+
+ }
+ o = (dhcp_option_t *) (((uword) o) + (o->length + 2));
+ }
+ }
+
+ if (sw_if_index == (u32) ~ 0)
+ {
+ error0 = DHCP_PROXY_ERROR_NO_OPTION_82;
+
+ drop_packet:
+ vlib_node_increment_counter (vm, dhcp_proxy_to_client_node.index,
+ error0, 1);
+ f0 = vlib_get_frame_to_node (vm, dpm->error_drop_node_index);
+ to_next0 = vlib_frame_vector_args (f0);
+ to_next0[0] = bi0;
+ f0->n_vectors = 1;
+ vlib_put_frame_to_node (vm, dpm->error_drop_node_index, f0);
+ goto do_trace;
+ }
+
if (relay_addr.as_u32 == 0)
- {
- error0 = DHCP_PROXY_ERROR_BAD_OPTION_82_ADDR;
- goto drop_packet;
- }
+ {
+ error0 = DHCP_PROXY_ERROR_BAD_OPTION_82_ADDR;
+ goto drop_packet;
+ }
if (sw_if_index >= vec_len (im->fib_index_by_sw_if_index))
- {
- error0 = DHCP_PROXY_ERROR_BAD_OPTION_82_ITF;
- goto drop_packet;
- }
+ {
+ error0 = DHCP_PROXY_ERROR_BAD_OPTION_82_ITF;
+ goto drop_packet;
+ }
- fib_index = im->fib_index_by_sw_if_index [sw_if_index];
- proxy = dhcp_get_proxy(dpm, fib_index, FIB_PROTOCOL_IP4);
+ fib_index = im->fib_index_by_sw_if_index[sw_if_index];
+ proxy = dhcp_get_proxy (dpm, fib_index, FIB_PROTOCOL_IP4);
if (PREDICT_FALSE (NULL == proxy))
- {
- error0 = DHCP_PROXY_ERROR_NO_SERVER;
- goto drop_packet;
- }
-
- vec_foreach(server, proxy->dhcp_servers)
- {
- if (ip0->src_address.as_u32 == server->dhcp_server.ip4.as_u32)
- {
- goto server_found;
- }
- }
+ {
+ error0 = DHCP_PROXY_ERROR_NO_SERVER;
+ goto drop_packet;
+ }
+
+ vec_foreach (server, proxy->dhcp_servers)
+ {
+ if (ip0->src_address.as_u32 == server->dhcp_server.ip4.as_u32)
+ {
+ goto server_found;
+ }
+ }
error0 = DHCP_PROXY_ERROR_BAD_SVR_FIB_OR_ADDRESS;
goto drop_packet;
swif = vnet_get_sw_interface (vnm, sw_if_index);
original_sw_if_index = sw_if_index;
if (swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
- sw_if_index = swif->unnumbered_sw_if_index;
+ sw_if_index = swif->unnumbered_sw_if_index;
ia0 = ip4_interface_first_address (&ip4_main, sw_if_index, 0);
if (ia0 == 0)
- {
- error0 = DHCP_PROXY_ERROR_NO_INTERFACE_ADDRESS;
- goto drop_packet;
- }
+ {
+ error0 = DHCP_PROXY_ERROR_NO_INTERFACE_ADDRESS;
+ goto drop_packet;
+ }
if (relay_addr.as_u32 != ia0->as_u32)
- {
- error0 = DHCP_PROXY_ERROR_BAD_YIADDR;
- goto drop_packet;
- }
+ {
+ error0 = DHCP_PROXY_ERROR_BAD_YIADDR;
+ goto drop_packet;
+ }
u0->checksum = 0;
u0->dst_port = clib_net_to_host_u16 (UDP_DST_PORT_dhcp_to_client);
old0 = ip0->dst_address.as_u32;
new0 = 0xFFFFFFFF;
ip0->dst_address.as_u32 = new0;
- sum0 = ip_csum_update (sum0, old0, new0,
- ip4_header_t /* structure */,
- dst_address /* offset of changed member */);
+ sum0 = ip_csum_update (sum0, old0, new0, ip4_header_t /* structure */ ,
+ dst_address /* offset of changed member */ );
ip0->checksum = ip_csum_fold (sum0);
sum0 = ip0->checksum;
old0 = ip0->src_address.as_u32;
new0 = ia0->as_u32;
ip0->src_address.as_u32 = new0;
- sum0 = ip_csum_update (sum0, old0, new0,
- ip4_header_t /* structure */,
- src_address /* offset of changed member */);
+ sum0 = ip_csum_update (sum0, old0, new0, ip4_header_t /* structure */ ,
+ src_address /* offset of changed member */ );
ip0->checksum = ip_csum_fold (sum0);
- vlib_buffer_advance (b0, -(sizeof(ethernet_header_t)));
+ vlib_buffer_advance (b0, -(sizeof (ethernet_header_t)));
si0 = vnet_get_sw_interface (vnm, original_sw_if_index);
if (si0->type == VNET_SW_INTERFACE_TYPE_SUB)
- vlib_buffer_advance (b0, -4 /* space for VLAN tag */);
+ vlib_buffer_advance (b0, -4 /* space for VLAN tag */ );
mac0 = vlib_buffer_get_current (b0);
clib_memcpy (mac0->src_address, ei0->address, sizeof (ei0->address));
memset (mac0->dst_address, 0xff, sizeof (mac0->dst_address));
mac0->type = (si0->type == VNET_SW_INTERFACE_TYPE_SUB) ?
- clib_net_to_host_u16(0x8100) : clib_net_to_host_u16 (0x0800);
+ clib_net_to_host_u16 (0x8100) : clib_net_to_host_u16 (0x0800);
if (si0->type == VNET_SW_INTERFACE_TYPE_SUB)
{
- u32 * vlan_tag = (u32 *)(mac0+1);
+ u32 *vlan_tag = (u32 *) (mac0 + 1);
u32 tmp;
tmp = (si0->sub.id << 16) | 0x0800;
*vlan_tag = clib_host_to_net_u32 (tmp);
vlib_put_frame_to_node (vm, hi0->output_node_index, f0);
do_trace:
- if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
- {
- dhcp_proxy_trace_t *tr = vlib_add_trace (vm, node,
- b0, sizeof (*tr));
- tr->which = 1; /* to client */
- tr->trace_ip4_address.as_u32 = ia0 ? ia0->as_u32 : 0;
- tr->error = error0;
- tr->original_sw_if_index = original_sw_if_index;
- tr->sw_if_index = sw_if_index;
- }
+ if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ dhcp_proxy_trace_t *tr = vlib_add_trace (vm, node,
+ b0, sizeof (*tr));
+ tr->which = 1; /* to client */
+ tr->trace_ip4_address.as_u32 = ia0 ? ia0->as_u32 : 0;
+ tr->error = error0;
+ tr->original_sw_if_index = original_sw_if_index;
+ tr->sw_if_index = sw_if_index;
+ }
}
return from_frame->n_vectors;
}
+/* *INDENT-OFF* */
VLIB_REGISTER_NODE (dhcp_proxy_to_client_node, static) = {
.function = dhcp_proxy_to_client_input,
.name = "dhcp-proxy-to-client",
.unformat_buffer = unformat_dhcp_proxy_header,
#endif
};
+/* *INDENT-ON* */
static clib_error_t *
dhcp4_proxy_init (vlib_main_t * vm)
{
- dhcp_proxy_main_t * dm = &dhcp_proxy_main;
- vlib_node_t * error_drop_node;
+ dhcp_proxy_main_t *dm = &dhcp_proxy_main;
+ vlib_node_t *error_drop_node;
error_drop_node = vlib_get_node_by_name (vm, (u8 *) "error-drop");
dm->error_drop_node_index = error_drop_node->index;
- udp_register_dst_port (vm, UDP_DST_PORT_dhcp_to_client,
- dhcp_proxy_to_client_node.index, 1 /* is_ip4 */);
+ udp_register_dst_port (vm, UDP_DST_PORT_dhcp_to_client,
+ dhcp_proxy_to_client_node.index, 1 /* is_ip4 */ );
- udp_register_dst_port (vm, UDP_DST_PORT_dhcp_to_server,
- dhcp_proxy_to_server_node.index, 1 /* is_ip4 */);
+ udp_register_dst_port (vm, UDP_DST_PORT_dhcp_to_server,
+ dhcp_proxy_to_server_node.index, 1 /* is_ip4 */ );
return 0;
}
VLIB_INIT_FUNCTION (dhcp4_proxy_init);
int
-dhcp4_proxy_set_server (ip46_address_t *addr,
- ip46_address_t *src_addr,
- u32 rx_table_id,
- u32 server_table_id,
- int is_del)
+dhcp4_proxy_set_server (ip46_address_t * addr,
+ ip46_address_t * src_addr,
+ u32 rx_table_id, u32 server_table_id, int is_del)
{
u32 rx_fib_index = 0;
int rc = 0;
- const fib_prefix_t all_1s =
- {
- .fp_len = 32,
- .fp_addr.ip4.as_u32 = 0xffffffff,
- .fp_proto = FIB_PROTOCOL_IP4,
+ const fib_prefix_t all_1s = {
+ .fp_len = 32,
+ .fp_addr.ip4.as_u32 = 0xffffffff,
+ .fp_proto = FIB_PROTOCOL_IP4,
};
- if (ip46_address_is_zero(addr))
+ if (ip46_address_is_zero (addr))
return VNET_API_ERROR_INVALID_DST_ADDRESS;
-
- if (ip46_address_is_zero(src_addr))
+
+ if (ip46_address_is_zero (src_addr))
return VNET_API_ERROR_INVALID_SRC_ADDRESS;
- rx_fib_index = fib_table_find_or_create_and_lock(FIB_PROTOCOL_IP4,
- rx_table_id,
- FIB_SOURCE_DHCP);
+ rx_fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4,
+ rx_table_id,
+ FIB_SOURCE_DHCP);
if (is_del)
{
if (dhcp_proxy_server_del (FIB_PROTOCOL_IP4, rx_fib_index,
- addr, server_table_id))
- {
- fib_table_entry_special_remove(rx_fib_index,
- &all_1s,
- FIB_SOURCE_DHCP);
- fib_table_unlock (rx_fib_index, FIB_PROTOCOL_IP4, FIB_SOURCE_DHCP);
- }
+ addr, server_table_id))
+ {
+ fib_table_entry_special_remove (rx_fib_index,
+ &all_1s, FIB_SOURCE_DHCP);
+ fib_table_unlock (rx_fib_index, FIB_PROTOCOL_IP4, FIB_SOURCE_DHCP);
+ }
}
else
- {
+ {
if (dhcp_proxy_server_add (FIB_PROTOCOL_IP4,
- addr, src_addr,
- rx_fib_index, server_table_id))
- {
- fib_table_entry_special_add(rx_fib_index,
- &all_1s,
- FIB_SOURCE_DHCP,
- FIB_ENTRY_FLAG_LOCAL);
- fib_table_lock (rx_fib_index, FIB_PROTOCOL_IP4, FIB_SOURCE_DHCP);
- }
- }
+ addr, src_addr,
+ rx_fib_index, server_table_id))
+ {
+ fib_table_entry_special_add (rx_fib_index,
+ &all_1s,
+ FIB_SOURCE_DHCP, FIB_ENTRY_FLAG_LOCAL);
+ fib_table_lock (rx_fib_index, FIB_PROTOCOL_IP4, FIB_SOURCE_DHCP);
+ }
+ }
fib_table_unlock (rx_fib_index, FIB_PROTOCOL_IP4, FIB_SOURCE_DHCP);
return (rc);
static clib_error_t *
dhcp4_proxy_set_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
{
ip46_address_t server_addr, src_addr;
u32 server_table_id = 0, rx_table_id = 0;
int is_del = 0;
int set_src = 0, set_server = 0;
- memset(&server_addr, 0, sizeof(server_addr));
- memset(&src_addr, 0, sizeof(src_addr));
+ memset (&server_addr, 0, sizeof (server_addr));
+ memset (&src_addr, 0, sizeof (src_addr));
- while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
- if (unformat (input, "server %U",
- unformat_ip4_address, &server_addr.ip4))
- set_server = 1;
+ if (unformat (input, "server %U",
+ unformat_ip4_address, &server_addr.ip4))
+ set_server = 1;
else if (unformat (input, "server-fib-id %d", &server_table_id))
- ;
+ ;
else if (unformat (input, "rx-fib-id %d", &rx_table_id))
- ;
- else if (unformat(input, "src-address %U",
- unformat_ip4_address, &src_addr.ip4))
- set_src = 1;
- else if (unformat (input, "delete") ||
- unformat (input, "del"))
- is_del = 1;
+ ;
+ else if (unformat (input, "src-address %U",
+ unformat_ip4_address, &src_addr.ip4))
+ set_src = 1;
+ else if (unformat (input, "delete") || unformat (input, "del"))
+ is_del = 1;
else
- break;
+ break;
}
if (is_del || (set_server && set_src))
{
int rv;
- rv = dhcp4_proxy_set_server (&server_addr, &src_addr, rx_table_id,
- server_table_id, is_del);
+ rv = dhcp4_proxy_set_server (&server_addr, &src_addr, rx_table_id,
+ server_table_id, is_del);
switch (rv)
- {
- case 0:
- return 0;
-
- case VNET_API_ERROR_INVALID_DST_ADDRESS:
- return clib_error_return (0, "Invalid server address");
-
- case VNET_API_ERROR_INVALID_SRC_ADDRESS:
- return clib_error_return (0, "Invalid src address");
-
- case VNET_API_ERROR_NO_SUCH_ENTRY:
- return clib_error_return
- (0, "Fib id %d: no per-fib DHCP server configured", rx_table_id);
-
- default:
- return clib_error_return (0, "BUG: rv %d", rv);
- }
+ {
+ case 0:
+ return 0;
+
+ case VNET_API_ERROR_INVALID_DST_ADDRESS:
+ return clib_error_return (0, "Invalid server address");
+
+ case VNET_API_ERROR_INVALID_SRC_ADDRESS:
+ return clib_error_return (0, "Invalid src address");
+
+ case VNET_API_ERROR_NO_SUCH_ENTRY:
+ return clib_error_return
+ (0, "Fib id %d: no per-fib DHCP server configured", rx_table_id);
+
+ default:
+ return clib_error_return (0, "BUG: rv %d", rv);
+ }
}
else
return clib_error_return (0, "parse error`%U'",
- format_unformat_error, input);
+ format_unformat_error, input);
}
+/* *INDENT-OFF* */
VLIB_CLI_COMMAND (dhcp_proxy_set_command, static) = {
.path = "set dhcp proxy",
.short_help = "set dhcp proxy [del] server <ip-addr> src-address <ip-addr> [server-fib-id <n>] [rx-fib-id <n>]",
.function = dhcp4_proxy_set_command_fn,
};
+/* *INDENT-ON* */
static u8 *
format_dhcp4_proxy_server (u8 * s, va_list * args)
{
dhcp_proxy_t *proxy = va_arg (*args, dhcp_proxy_t *);
- ip4_fib_t * rx_fib, * server_fib;
+ ip4_fib_t *rx_fib, *server_fib;
dhcp_server_t *server;
if (proxy == 0)
{
- s = format (s, "%=14s%=16s%s", "RX FIB", "Src Address",
- "Servers FIB,Address");
+ s = format (s, "%=14s%=16s%s", "RX FIB", "Src Address",
+ "Servers FIB,Address");
return s;
}
- rx_fib = ip4_fib_get(proxy->rx_fib_index);
+ rx_fib = ip4_fib_get (proxy->rx_fib_index);
s = format (s, "%=14u%=16U",
- rx_fib->table_id,
- format_ip46_address, &proxy->dhcp_src_address, IP46_TYPE_ANY);
+ rx_fib->table_id,
+ format_ip46_address, &proxy->dhcp_src_address, IP46_TYPE_ANY);
- vec_foreach(server, proxy->dhcp_servers)
+ vec_foreach (server, proxy->dhcp_servers)
{
- server_fib = ip4_fib_get(server->server_fib_index);
- s = format (s, "%u,%U ",
- server_fib->table_id,
- format_ip46_address, &server->dhcp_server, IP46_TYPE_ANY);
+ server_fib = ip4_fib_get (server->server_fib_index);
+ s = format (s, "%u,%U ",
+ server_fib->table_id,
+ format_ip46_address, &server->dhcp_server, IP46_TYPE_ANY);
}
return s;
}
static int
-dhcp4_proxy_show_walk (dhcp_proxy_t *server,
- void *ctx)
+dhcp4_proxy_show_walk (dhcp_proxy_t * server, void *ctx)
{
- vlib_main_t * vm = ctx;
+ vlib_main_t *vm = ctx;
- vlib_cli_output (vm, "%U", format_dhcp4_proxy_server, server);
+ vlib_cli_output (vm, "%U", format_dhcp4_proxy_server, server);
- return (1);
+ return (1);
}
static clib_error_t *
dhcp4_proxy_show_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
{
- vlib_cli_output (vm, "%U", format_dhcp4_proxy_server, NULL /* header line */);
+ vlib_cli_output (vm, "%U", format_dhcp4_proxy_server,
+ NULL /* header line */ );
- dhcp_proxy_walk(FIB_PROTOCOL_IP4, dhcp4_proxy_show_walk, vm);
+ dhcp_proxy_walk (FIB_PROTOCOL_IP4, dhcp4_proxy_show_walk, vm);
return (NULL);
}
+/* *INDENT-OFF* */
VLIB_CLI_COMMAND (dhcp_proxy_show_command, static) = {
.path = "show dhcp proxy",
.short_help = "Display dhcp proxy server info",
.function = dhcp4_proxy_show_command_fn,
};
+/* *INDENT-ON* */
static clib_error_t *
dhcp_option_82_vss_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ unformat_input_t * input, vlib_cli_command_t * cmd)
{
u8 is_del = 0, vss_type = VSS_TYPE_DEFAULT;
u32 oui = 0, fib_id = 0, tbl_id = ~0;
u8 *vpn_ascii_id = 0;
- while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "table %d", &tbl_id))
- ;
+ ;
else if (unformat (input, "oui %d", &oui))
- vss_type = VSS_TYPE_VPN_ID;
+ vss_type = VSS_TYPE_VPN_ID;
else if (unformat (input, "vpn-id %d", &fib_id))
- vss_type = VSS_TYPE_VPN_ID;
+ vss_type = VSS_TYPE_VPN_ID;
else if (unformat (input, "vpn-ascii-id %s", &vpn_ascii_id))
- vss_type = VSS_TYPE_ASCII;
- else if (unformat(input, "delete") || unformat(input, "del"))
- is_del = 1;
+ vss_type = VSS_TYPE_ASCII;
+ else if (unformat (input, "delete") || unformat (input, "del"))
+ is_del = 1;
else
- break;
+ break;
}
if (tbl_id == ~0)
- return clib_error_return (0, "no table ID specified.");
-
- int rv = dhcp_proxy_set_vss (FIB_PROTOCOL_IP4, tbl_id, vss_type,
+ return clib_error_return (0, "no table ID specified.");
+
+ int rv = dhcp_proxy_set_vss (FIB_PROTOCOL_IP4, tbl_id, vss_type,
vpn_ascii_id, oui, fib_id, is_del);
switch (rv)
{
case 0:
- return 0;
+ return 0;
case VNET_API_ERROR_NO_SUCH_ENTRY:
- return clib_error_return (0, "option 82 vss for table %d not found in in pool.",
- tbl_id);
+ return clib_error_return (0,
+ "option 82 vss for table %d not found in in pool.",
+ tbl_id);
default:
- return clib_error_return (0, "BUG: rv %d", rv);
+ return clib_error_return (0, "BUG: rv %d", rv);
}
}
+/* *INDENT-OFF* */
VLIB_CLI_COMMAND (dhcp_proxy_vss_command,static) = {
.path = "set dhcp option-82 vss",
.short_help = "set dhcp option-82 vss [del] table <table id> [oui <n> vpn-id <n> | vpn-ascii-id <text>]",
.function = dhcp_option_82_vss_fn,
};
+/* *INDENT-ON* */
static clib_error_t *
dhcp_vss_show_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
-
+ unformat_input_t * input, vlib_cli_command_t * cmd)
{
- dhcp_vss_walk(FIB_PROTOCOL_IP4, dhcp_vss_show_walk, vm);
+ dhcp_vss_walk (FIB_PROTOCOL_IP4, dhcp_vss_show_walk, vm);
return (NULL);
}
+/* *INDENT-OFF* */
VLIB_CLI_COMMAND (dhcp_proxy_vss_show_command, static) = {
.path = "show dhcp vss",
.short_help = "show dhcp VSS",
.function = dhcp_vss_show_command_fn,
};
+/* *INDENT-ON* */
static clib_error_t *
dhcp_option_82_address_show_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
-
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
{
- vnet_main_t *vnm = vnet_get_main();
- u32 sw_if_index0=0, sw_if_index;
+ vnet_main_t *vnm = vnet_get_main ();
+ u32 sw_if_index0 = 0, sw_if_index;
vnet_sw_interface_t *swif;
ip4_address_t *ia0;
-
- while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
-
- if (unformat(input, "%U",
- unformat_vnet_sw_interface, vnm, &sw_if_index0))
- {
- swif = vnet_get_sw_interface (vnm, sw_if_index0);
- sw_if_index = (swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED) ?
- swif->unnumbered_sw_if_index : sw_if_index0;
- ia0 = ip4_interface_first_address(&ip4_main, sw_if_index, 0);
- if (ia0)
- {
- vlib_cli_output (vm, "%=20s%=20s", "interface",
- "source IP address");
-
- vlib_cli_output (vm, "%=20U%=20U",
- format_vnet_sw_if_index_name,
- vnm, sw_if_index0,
- format_ip4_address, ia0);
- }
- else
- vlib_cli_output (vm, "%=34s %=20U",
- "No IPv4 address configured on",
- format_vnet_sw_if_index_name,
- vnm, sw_if_index);
- }
+
+ if (unformat (input, "%U",
+ unformat_vnet_sw_interface, vnm, &sw_if_index0))
+ {
+ swif = vnet_get_sw_interface (vnm, sw_if_index0);
+ sw_if_index = (swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED) ?
+ swif->unnumbered_sw_if_index : sw_if_index0;
+ ia0 = ip4_interface_first_address (&ip4_main, sw_if_index, 0);
+ if (ia0)
+ {
+ vlib_cli_output (vm, "%=20s%=20s", "interface",
+ "source IP address");
+
+ vlib_cli_output (vm, "%=20U%=20U",
+ format_vnet_sw_if_index_name,
+ vnm, sw_if_index0, format_ip4_address, ia0);
+ }
+ else
+ vlib_cli_output (vm, "%=34s %=20U",
+ "No IPv4 address configured on",
+ format_vnet_sw_if_index_name, vnm, sw_if_index);
+ }
else
- break;
+ break;
}
-
+
return 0;
}
+/* *INDENT-OFF* */
VLIB_CLI_COMMAND (dhcp_proxy_address_show_command,static) = {
.path = "show dhcp option-82-address interface",
.short_help = "show dhcp option-82-address interface <interface>",
.function = dhcp_option_82_address_show_command_fn,
};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
/*
* DHCPv6 message types
*/
-typedef enum dhcpv6_msg_type_{
- DHCPV6_MSG_SOLICIT = 1,
- DHCPV6_MSG_ADVERTISE = 2,
- DHCPV6_MSG_REQUEST = 3,
- DHCPV6_MSG_CONFIRM = 4,
- DHCPV6_MSG_RENEW = 5,
- DHCPV6_MSG_REBIND = 6,
- DHCPV6_MSG_REPLY = 7,
- DHCPV6_MSG_RELEASE = 8,
- DHCPV6_MSG_DECLINE = 9,
- DHCPV6_MSG_RECONFIGURE = 10,
- DHCPV6_MSG_INFORMATION_REQUEST = 11,
- DHCPV6_MSG_RELAY_FORW = 12,
- DHCPV6_MSG_RELAY_REPL = 13,
+typedef enum dhcpv6_msg_type_
+{
+ DHCPV6_MSG_SOLICIT = 1,
+ DHCPV6_MSG_ADVERTISE = 2,
+ DHCPV6_MSG_REQUEST = 3,
+ DHCPV6_MSG_CONFIRM = 4,
+ DHCPV6_MSG_RENEW = 5,
+ DHCPV6_MSG_REBIND = 6,
+ DHCPV6_MSG_REPLY = 7,
+ DHCPV6_MSG_RELEASE = 8,
+ DHCPV6_MSG_DECLINE = 9,
+ DHCPV6_MSG_RECONFIGURE = 10,
+ DHCPV6_MSG_INFORMATION_REQUEST = 11,
+ DHCPV6_MSG_RELAY_FORW = 12,
+ DHCPV6_MSG_RELAY_REPL = 13,
} dhcpv6_msg_type_t;
/*
* DHCPv6 options types
*/
-enum {
- DHCPV6_OPTION_CLIENTID = 1,
- DHCPV6_OPTION_SERVERID = 2,
- DHCPV6_OPTION_IA_NA = 3,
- DHCPV6_OPTION_IA_TA = 4,
- DHCPV6_OPTION_IAADDR = 5,
- DHCPV6_OPTION_ORO = 6,
- DHCPV6_OPTION_PREFERENCE = 7,
- DHCPV6_OPTION_ELAPSED_TIME = 8,
- DHCPV6_OPTION_RELAY_MSG = 9,
- DHCPV6_OPTION_AUTH = 11,
- DHCPV6_OPTION_UNICAST = 12,
- DHCPV6_OPTION_STATUS_CODE = 13,
- DHCPV6_OPTION_RAPID_COMMIT = 14,
- DHCPV6_OPTION_USER_CLASS = 15,
- DHCPV6_OPTION_VENDOR_CLASS = 16,
- DHCPV6_OPTION_VENDOR_OPTS = 17,
- DHCPV6_OPTION_INTERFACE_ID = 18, // relay agent fills this
- DHCPV6_OPTION_RECONF_MSG = 19,
- DHCPV6_OPTION_RECONF_ACCEPT = 20,
- DHCPV6_OPTION_REMOTEID = 37, // relay agent fills this
- DHCPV6_OPTION_VSS = 68, // relay agent fills this
- DHCPV6_OPTION_CLIENT_LINK_LAYER_ADDRESS = 79,
- DHCPV6_OPTION_MAX
+enum
+{
+ DHCPV6_OPTION_CLIENTID = 1,
+ DHCPV6_OPTION_SERVERID = 2,
+ DHCPV6_OPTION_IA_NA = 3,
+ DHCPV6_OPTION_IA_TA = 4,
+ DHCPV6_OPTION_IAADDR = 5,
+ DHCPV6_OPTION_ORO = 6,
+ DHCPV6_OPTION_PREFERENCE = 7,
+ DHCPV6_OPTION_ELAPSED_TIME = 8,
+ DHCPV6_OPTION_RELAY_MSG = 9,
+ DHCPV6_OPTION_AUTH = 11,
+ DHCPV6_OPTION_UNICAST = 12,
+ DHCPV6_OPTION_STATUS_CODE = 13,
+ DHCPV6_OPTION_RAPID_COMMIT = 14,
+ DHCPV6_OPTION_USER_CLASS = 15,
+ DHCPV6_OPTION_VENDOR_CLASS = 16,
+ DHCPV6_OPTION_VENDOR_OPTS = 17,
+ DHCPV6_OPTION_INTERFACE_ID = 18, // relay agent fills this
+ DHCPV6_OPTION_RECONF_MSG = 19,
+ DHCPV6_OPTION_RECONF_ACCEPT = 20,
+ DHCPV6_OPTION_REMOTEID = 37, // relay agent fills this
+ DHCPV6_OPTION_VSS = 68, // relay agent fills this
+ DHCPV6_OPTION_CLIENT_LINK_LAYER_ADDRESS = 79,
+ DHCPV6_OPTION_MAX
};
/*
* DHCPv6 status codes
*/
-enum {
- DHCPV6_STATUS_SUCCESS = 0,
- DHCPV6_STATUS_UNSPEC_FAIL = 1,
- DHCPV6_STATUS_NOADDRS_AVAIL = 2,
- DHCPV6_STATUS_NO_BINDING = 3,
- DHCPV6_STATUS_NOT_ONLINK = 4,
- DHCPV6_STATUS_USE_MULTICAST = 5,
+enum
+{
+ DHCPV6_STATUS_SUCCESS = 0,
+ DHCPV6_STATUS_UNSPEC_FAIL = 1,
+ DHCPV6_STATUS_NOADDRS_AVAIL = 2,
+ DHCPV6_STATUS_NO_BINDING = 3,
+ DHCPV6_STATUS_NOT_ONLINK = 4,
+ DHCPV6_STATUS_USE_MULTICAST = 5,
};
/*
* DHCPv6 DUID types
*/
-enum {
- DHCPV6_DUID_LLT = 1, /* DUID Based on Link-layer Address Plus Time */
- DHCPV6_DUID_EN = 2, /* DUID Based on Enterprise Number */
- DHCPV6_DUID_LL = 3, /* DUID Based on Link-layer Address */
+enum
+{
+ DHCPV6_DUID_LLT = 1, /* DUID Based on Link-layer Address Plus Time */
+ DHCPV6_DUID_EN = 2, /* DUID Based on Enterprise Number */
+ DHCPV6_DUID_LL = 3, /* DUID Based on Link-layer Address */
};
//Structure for DHCPv6 payload from client
-typedef struct dhcpv6_hdr_ {
- union {
- u8 msg_type; //DHCP msg type
- u32 xid; // transaction id
- }u;
- u8 data[0];
+typedef struct dhcpv6_hdr_
+{
+ union
+ {
+ u8 msg_type; //DHCP msg type
+ u32 xid; // transaction id
+ } u;
+ u8 data[0];
} dhcpv6_header_t;
+/* *INDENT-OFF* */
typedef CLIB_PACKED (struct dhcpv6_relay_ctx_ {
dhcpv6_header_t *pkt;
u32 pkt_len;
char ctx_name[32+1];
u8 dhcp_msg_type;
}) dhcpv6_relay_ctx_t;
+/* *INDENT-ON* */
//Structure for DHCPv6 RELAY-FORWARD and DHCPv6 RELAY-REPLY pkts
+/* *INDENT-OFF* */
typedef CLIB_PACKED (struct dhcpv6_relay_hdr_ {
u8 msg_type;
u8 hop_count;
ip6_address_t peer_addr;
u8 data[0];
}) dhcpv6_relay_hdr_t;
+/* *INDENT-ON* */
-typedef enum dhcp_stats_action_type_ {
- DHCP_STATS_ACTION_FORWARDED=1,
- DHCP_STATS_ACTION_RECEIVED,
- DHCP_STATS_ACTION_DROPPED
+typedef enum dhcp_stats_action_type_
+{
+ DHCP_STATS_ACTION_FORWARDED = 1,
+ DHCP_STATS_ACTION_RECEIVED,
+ DHCP_STATS_ACTION_DROPPED
} dhcp_stats_action_type_t;
//Generic counters for a packet
-typedef struct dhcp_stats_counters_ {
- u64 rx_pkts; //counter for received pkts
- u64 tx_pkts; //counter for forwarded pkts
- u64 drops; //counter for dropped pkts
+typedef struct dhcp_stats_counters_
+{
+ u64 rx_pkts; //counter for received pkts
+ u64 tx_pkts; //counter for forwarded pkts
+ u64 drops; //counter for dropped pkts
} dhcp_stats_counters_t;
-typedef enum dhcpv6_stats_drop_reason_ {
- DHCPV6_RELAY_PKT_DROP_RELAYDISABLE = 1,
- DHCPV6_RELAY_PKT_DROP_MAX_HOPS,
- DHCPV6_RELAY_PKT_DROP_VALIDATION_FAIL,
- DHCPV6_RELAY_PKT_DROP_UNKNOWN_OP_INTF,
- DHCPV6_RELAY_PKT_DROP_BAD_CONTEXT,
- DHCPV6_RELAY_PKT_DROP_OPT_INSERT_FAIL,
- DHCPV6_RELAY_PKT_DROP_REPLY_FROM_CLIENT,
+typedef enum dhcpv6_stats_drop_reason_
+{
+ DHCPV6_RELAY_PKT_DROP_RELAYDISABLE = 1,
+ DHCPV6_RELAY_PKT_DROP_MAX_HOPS,
+ DHCPV6_RELAY_PKT_DROP_VALIDATION_FAIL,
+ DHCPV6_RELAY_PKT_DROP_UNKNOWN_OP_INTF,
+ DHCPV6_RELAY_PKT_DROP_BAD_CONTEXT,
+ DHCPV6_RELAY_PKT_DROP_OPT_INSERT_FAIL,
+ DHCPV6_RELAY_PKT_DROP_REPLY_FROM_CLIENT,
} dhcpv6_stats_drop_reason_t;
+/* *INDENT-OFF* */
typedef CLIB_PACKED (struct {
u16 option;
u16 length;
u8 data[0];
}) dhcpv6_option_t;
+/* *INDENT-ON* */
+/* *INDENT-OFF* */
typedef CLIB_PACKED (struct {
dhcpv6_option_t opt;
u32 int_idx;
}) dhcpv6_int_id_t;
+/* *INDENT-ON* */
+/* *INDENT-OFF* */
typedef CLIB_PACKED (struct {
dhcpv6_option_t opt;
u8 vss_type;
u8 data[0];
}) dhcpv6_vss_t;
+/* *INDENT-ON* */
+/* *INDENT-OFF* */
typedef CLIB_PACKED (struct {
dhcpv6_option_t opt;
u32 ent_num;
u32 rmt_id;
}) dhcpv6_rmt_id_t;
+/* *INDENT-ON* */
+/* *INDENT-OFF* */
typedef CLIB_PACKED (struct {
dhcpv6_option_t opt;
u16 link_type;
u8 data[6]; // data[0]:data[5]: MAC address
}) dhcpv6_client_mac_t;
+/* *INDENT-ON* */
#endif /* included_vnet_dhcp6_packet_h */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
#include <vnet/mfib/ip6_mfib.h>
#include <vnet/fib/fib.h>
-static char * dhcpv6_proxy_error_strings[] = {
+static char *dhcpv6_proxy_error_strings[] = {
#define dhcpv6_proxy_error(n,s) s,
#include <vnet/dhcp/dhcp6_proxy_error.def>
#undef dhcpv6_proxy_error
_ (SEND_TO_CLIENT, "dhcpv6-proxy-to-client")
-typedef enum {
+typedef enum
+{
#define _(s,n) DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_##s,
foreach_dhcpv6_proxy_to_server_input_next
#undef _
- DHCPV6_PROXY_TO_SERVER_INPUT_N_NEXT,
+ DHCPV6_PROXY_TO_SERVER_INPUT_N_NEXT,
} dhcpv6_proxy_to_server_input_next_t;
-typedef struct {
+typedef struct
+{
/* 0 => to server, 1 => to client */
int which;
u8 packet_data[64];
{
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
- dhcpv6_proxy_trace_t * t = va_arg (*args, dhcpv6_proxy_trace_t *);
+ dhcpv6_proxy_trace_t *t = va_arg (*args, dhcpv6_proxy_trace_t *);
if (t->which == 0)
s = format (s, "DHCPV6 proxy: sent to server %U",
- format_ip6_address, &t->packet_data, sizeof (ip6_address_t));
+ format_ip6_address, &t->packet_data, sizeof (ip6_address_t));
else
s = format (s, "DHCPV6 proxy: sent to client from %U",
- format_ip6_address, &t->packet_data, sizeof (ip6_address_t));
- if (t->error != (u32)~0)
+ format_ip6_address, &t->packet_data, sizeof (ip6_address_t));
+ if (t->error != (u32) ~ 0)
s = format (s, " error: %s\n", dhcpv6_proxy_error_strings[t->error]);
s = format (s, " original_sw_if_index: %d, sw_if_index: %d\n",
- t->original_sw_if_index, t->sw_if_index);
+ t->original_sw_if_index, t->sw_if_index);
return s;
}
static u8 *
format_dhcpv6_proxy_header_with_length (u8 * s, va_list * args)
{
- dhcpv6_header_t * h = va_arg (*args, dhcpv6_header_t *);
+ dhcpv6_header_t *h = va_arg (*args, dhcpv6_header_t *);
u32 max_header_bytes = va_arg (*args, u32);
u32 header_bytes;
return s;
}
+
/* get first interface address */
static ip6_address_t *
ip6_interface_first_global_or_site_address (ip6_main_t * im, u32 sw_if_index)
{
- ip_lookup_main_t * lm = &im->lookup_main;
- ip_interface_address_t * ia = 0;
- ip6_address_t * result = 0;
+ ip_lookup_main_t *lm = &im->lookup_main;
+ ip_interface_address_t *ia = 0;
+ ip6_address_t *result = 0;
+ /* *INDENT-OFF* */
foreach_ip_interface_address (lm, ia, sw_if_index,
1 /* honor unnumbered */,
({
break;
}
}));
+ /* *INDENT-ON* */
return result;
}
-static inline void copy_ip6_address (ip6_address_t *dst,
- ip6_address_t *src)
+static inline void
+copy_ip6_address (ip6_address_t * dst, ip6_address_t * src)
{
dst->as_u64[0] = src->as_u64[0];
dst->as_u64[1] = src->as_u64[1];
-}
+}
static uword
dhcpv6_proxy_to_server_input (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
{
- u32 n_left_from, next_index, * from, * to_next;
- dhcp_proxy_main_t * dpm = &dhcp_proxy_main;
+ u32 n_left_from, next_index, *from, *to_next;
+ dhcp_proxy_main_t *dpm = &dhcp_proxy_main;
from = vlib_frame_vector_args (from_frame);
n_left_from = from_frame->n_vectors;
- u32 pkts_to_server=0, pkts_to_client=0, pkts_no_server=0;
- u32 pkts_no_interface_address=0, pkts_no_exceeding_max_hop=0;
- u32 pkts_no_src_address=0;
- u32 pkts_wrong_msg_type=0;
- u32 pkts_too_big=0;
- ip6_main_t * im = &ip6_main;
- ip6_address_t * src;
+ u32 pkts_to_server = 0, pkts_to_client = 0, pkts_no_server = 0;
+ u32 pkts_no_interface_address = 0, pkts_no_exceeding_max_hop = 0;
+ u32 pkts_no_src_address = 0;
+ u32 pkts_wrong_msg_type = 0;
+ u32 pkts_too_big = 0;
+ ip6_main_t *im = &ip6_main;
+ ip6_address_t *src;
int bogus_length;
dhcp_proxy_t *proxy;
dhcp_server_t *server;
- u32 rx_fib_idx = 0, server_fib_idx = 0;
+ u32 rx_fib_idx = 0, server_fib_idx = 0;
next_index = node->cached_next_index;
{
u32 n_left_to_next;
- vlib_get_next_frame (vm, node, next_index,
- to_next, n_left_to_next);
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
while (n_left_from > 0 && n_left_to_next > 0)
{
- vnet_main_t *vnm = vnet_get_main();
- u32 sw_if_index = 0;
- u32 rx_sw_if_index = 0;
- vnet_sw_interface_t *swif;
- u32 bi0;
- vlib_buffer_t * b0;
- udp_header_t * u0, *u1;
- dhcpv6_header_t * h0; // client msg hdr
- ip6_header_t * ip0, *ip1;
- ip6_address_t _ia0, *ia0=&_ia0;
+ vnet_main_t *vnm = vnet_get_main ();
+ u32 sw_if_index = 0;
+ u32 rx_sw_if_index = 0;
+ vnet_sw_interface_t *swif;
+ u32 bi0;
+ vlib_buffer_t *b0;
+ udp_header_t *u0, *u1;
+ dhcpv6_header_t *h0; // client msg hdr
+ ip6_header_t *ip0, *ip1;
+ ip6_address_t _ia0, *ia0 = &_ia0;
u32 next0;
- u32 error0 = (u32) ~0;
- dhcpv6_option_t *fwd_opt;
- dhcpv6_relay_hdr_t *r1;
- u16 len;
- dhcpv6_int_id_t *id1;
- dhcpv6_vss_t *vss1;
- dhcpv6_client_mac_t *cmac; // client mac
- ethernet_header_t * e_h0;
- u8 client_src_mac[6];
- vlib_buffer_free_list_t *fl;
- dhcp_vss_t *vss;
- u8 is_solicit = 0;
+ u32 error0 = (u32) ~ 0;
+ dhcpv6_option_t *fwd_opt;
+ dhcpv6_relay_hdr_t *r1;
+ u16 len;
+ dhcpv6_int_id_t *id1;
+ dhcpv6_vss_t *vss1;
+ dhcpv6_client_mac_t *cmac; // client mac
+ ethernet_header_t *e_h0;
+ u8 client_src_mac[6];
+ vlib_buffer_free_list_t *fl;
+ dhcp_vss_t *vss;
+ u8 is_solicit = 0;
bi0 = from[0];
from += 1;
b0 = vlib_get_buffer (vm, bi0);
- h0 = vlib_buffer_get_current (b0);
-
- /*
- * udp_local hands us the DHCPV6 header.
- */
- u0 = (void *)h0 -(sizeof(*u0));
- ip0 = (void *)u0 -(sizeof(*ip0));
- e_h0 = (void *)ip0 - ethernet_buffer_header_size(b0);
-
- clib_memcpy(client_src_mac, e_h0->src_address, 6);
-
- switch (h0->u.msg_type) {
- case DHCPV6_MSG_SOLICIT:
- case DHCPV6_MSG_REQUEST:
- case DHCPV6_MSG_CONFIRM:
- case DHCPV6_MSG_RENEW:
- case DHCPV6_MSG_REBIND:
- case DHCPV6_MSG_RELEASE:
- case DHCPV6_MSG_DECLINE:
- case DHCPV6_MSG_INFORMATION_REQUEST:
- case DHCPV6_MSG_RELAY_FORW:
- /* send to server */
- break;
- case DHCPV6_MSG_RELAY_REPL:
- /* send to client */
- next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_SEND_TO_CLIENT;
- error0 = 0;
- pkts_to_client++;
- goto do_enqueue;
- default:
- /* drop the packet */
- pkts_wrong_msg_type++;
- error0 = DHCPV6_PROXY_ERROR_WRONG_MESSAGE_TYPE;
- next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
- goto do_trace;
-
- }
-
- /* Send to DHCPV6 server via the configured FIB */
- rx_sw_if_index = sw_if_index = vnet_buffer(b0)->sw_if_index[VLIB_RX];
- rx_fib_idx = im->mfib_index_by_sw_if_index [rx_sw_if_index];
- proxy = dhcp_get_proxy(dpm, rx_fib_idx, FIB_PROTOCOL_IP6);
-
- if (PREDICT_FALSE (NULL == proxy))
- {
- error0 = DHCPV6_PROXY_ERROR_NO_SERVER;
- next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
- pkts_no_server++;
- goto do_trace;
- }
-
- server = &proxy->dhcp_servers[0];
- server_fib_idx = server->server_fib_index;
- vnet_buffer(b0)->sw_if_index[VLIB_TX] = server_fib_idx;
-
-
- /* relay-option header pointer */
- vlib_buffer_advance(b0, -(sizeof(*fwd_opt)));
- fwd_opt = vlib_buffer_get_current(b0);
- /* relay message header pointer */
- vlib_buffer_advance(b0, -(sizeof(*r1)));
- r1 = vlib_buffer_get_current(b0);
-
- vlib_buffer_advance(b0, -(sizeof(*u1)));
- u1 = vlib_buffer_get_current(b0);
-
- vlib_buffer_advance(b0, -(sizeof(*ip1)));
- ip1 = vlib_buffer_get_current(b0);
-
- /* fill in all that rubbish... */
- len = clib_net_to_host_u16(u0->length) - sizeof(udp_header_t);
- copy_ip6_address(&r1->peer_addr, &ip0->src_address);
-
- r1->msg_type = DHCPV6_MSG_RELAY_FORW;
- fwd_opt->length = clib_host_to_net_u16(len);
- fwd_opt->option = clib_host_to_net_u16(DHCPV6_OPTION_RELAY_MSG);
-
- r1->hop_count++;
- r1->hop_count = (h0->u.msg_type != DHCPV6_MSG_RELAY_FORW) ? 0 : r1->hop_count;
-
- if (PREDICT_FALSE(r1->hop_count >= HOP_COUNT_LIMIT))
- {
- error0 = DHCPV6_RELAY_PKT_DROP_MAX_HOPS;
- next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
- pkts_no_exceeding_max_hop++;
- goto do_trace;
- }
-
-
- /* If relay-fwd and src address is site or global unicast address */
- if (h0->u.msg_type == DHCPV6_MSG_RELAY_FORW &&
- ((ip0->src_address.as_u8[0] & 0xe0) == 0x20 ||
- (ip0->src_address.as_u8[0] & 0xfe) == 0xfc))
- {
- /* Set link address to zero */
- r1->link_addr.as_u64[0] = 0;
- r1->link_addr.as_u64[1] = 0;
- goto link_address_set;
- }
-
- /* if receiving interface is unnumbered, use receiving interface
- * IP address as link address, otherwise use the loopback interface
- * IP address as link address.
- */
-
- swif = vnet_get_sw_interface (vnm, rx_sw_if_index);
- if (swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
- sw_if_index = swif->unnumbered_sw_if_index;
-
- ia0 = ip6_interface_first_global_or_site_address(&ip6_main, sw_if_index);
- if (ia0 == 0)
- {
- error0 = DHCPV6_PROXY_ERROR_NO_INTERFACE_ADDRESS;
- next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
- pkts_no_interface_address++;
- goto do_trace;
- }
-
- copy_ip6_address(&r1->link_addr, ia0);
-
- link_address_set:
- fl = vlib_buffer_get_free_list (vm, vlib_buffer_get_free_list_index (b0));
-
- if ((b0->current_length+sizeof(*id1)+sizeof(*vss1)+sizeof(*cmac))
- > fl->n_data_bytes)
- {
- error0 = DHCPV6_PROXY_ERROR_PKT_TOO_BIG;
- next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
- pkts_too_big++;
- goto do_trace;
- }
-
- id1 = (dhcpv6_int_id_t *) (((uword) ip1) + b0->current_length);
- b0->current_length += (sizeof (*id1));
-
- id1->opt.option = clib_host_to_net_u16(DHCPV6_OPTION_INTERFACE_ID);
- id1->opt.length = clib_host_to_net_u16(sizeof(rx_sw_if_index));
- id1->int_idx = clib_host_to_net_u32(rx_sw_if_index);
-
- u1->length =0;
- if (h0->u.msg_type != DHCPV6_MSG_RELAY_FORW)
- {
- cmac = (dhcpv6_client_mac_t *) (((uword) ip1) + b0->current_length);
- b0->current_length += (sizeof (*cmac));
- cmac->opt.length =clib_host_to_net_u16(sizeof(*cmac) -
- sizeof(cmac->opt));
- cmac->opt.option = clib_host_to_net_u16(DHCPV6_OPTION_CLIENT_LINK_LAYER_ADDRESS);
- cmac->link_type = clib_host_to_net_u16(1); /* ethernet */
- clib_memcpy(cmac->data, client_src_mac, 6);
- u1->length += sizeof(*cmac);
- }
-
- vss = dhcp_get_vss_info(dpm, rx_fib_idx, FIB_PROTOCOL_IP6);
-
- if (vss)
+ h0 = vlib_buffer_get_current (b0);
+
+ /*
+ * udp_local hands us the DHCPV6 header.
+ */
+ u0 = (void *) h0 - (sizeof (*u0));
+ ip0 = (void *) u0 - (sizeof (*ip0));
+ e_h0 = (void *) ip0 - ethernet_buffer_header_size (b0);
+
+ clib_memcpy (client_src_mac, e_h0->src_address, 6);
+
+ switch (h0->u.msg_type)
+ {
+ case DHCPV6_MSG_SOLICIT:
+ case DHCPV6_MSG_REQUEST:
+ case DHCPV6_MSG_CONFIRM:
+ case DHCPV6_MSG_RENEW:
+ case DHCPV6_MSG_REBIND:
+ case DHCPV6_MSG_RELEASE:
+ case DHCPV6_MSG_DECLINE:
+ case DHCPV6_MSG_INFORMATION_REQUEST:
+ case DHCPV6_MSG_RELAY_FORW:
+ /* send to server */
+ break;
+ case DHCPV6_MSG_RELAY_REPL:
+ /* send to client */
+ next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_SEND_TO_CLIENT;
+ error0 = 0;
+ pkts_to_client++;
+ goto do_enqueue;
+ default:
+ /* drop the packet */
+ pkts_wrong_msg_type++;
+ error0 = DHCPV6_PROXY_ERROR_WRONG_MESSAGE_TYPE;
+ next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
+ goto do_trace;
+
+ }
+
+ /* Send to DHCPV6 server via the configured FIB */
+ rx_sw_if_index = sw_if_index =
+ vnet_buffer (b0)->sw_if_index[VLIB_RX];
+ rx_fib_idx = im->mfib_index_by_sw_if_index[rx_sw_if_index];
+ proxy = dhcp_get_proxy (dpm, rx_fib_idx, FIB_PROTOCOL_IP6);
+
+ if (PREDICT_FALSE (NULL == proxy))
+ {
+ error0 = DHCPV6_PROXY_ERROR_NO_SERVER;
+ next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
+ pkts_no_server++;
+ goto do_trace;
+ }
+
+ server = &proxy->dhcp_servers[0];
+ server_fib_idx = server->server_fib_index;
+ vnet_buffer (b0)->sw_if_index[VLIB_TX] = server_fib_idx;
+
+
+ /* relay-option header pointer */
+ vlib_buffer_advance (b0, -(sizeof (*fwd_opt)));
+ fwd_opt = vlib_buffer_get_current (b0);
+ /* relay message header pointer */
+ vlib_buffer_advance (b0, -(sizeof (*r1)));
+ r1 = vlib_buffer_get_current (b0);
+
+ vlib_buffer_advance (b0, -(sizeof (*u1)));
+ u1 = vlib_buffer_get_current (b0);
+
+ vlib_buffer_advance (b0, -(sizeof (*ip1)));
+ ip1 = vlib_buffer_get_current (b0);
+
+ /* fill in all that rubbish... */
+ len = clib_net_to_host_u16 (u0->length) - sizeof (udp_header_t);
+ copy_ip6_address (&r1->peer_addr, &ip0->src_address);
+
+ r1->msg_type = DHCPV6_MSG_RELAY_FORW;
+ fwd_opt->length = clib_host_to_net_u16 (len);
+ fwd_opt->option = clib_host_to_net_u16 (DHCPV6_OPTION_RELAY_MSG);
+
+ r1->hop_count++;
+ r1->hop_count =
+ (h0->u.msg_type != DHCPV6_MSG_RELAY_FORW) ? 0 : r1->hop_count;
+
+ if (PREDICT_FALSE (r1->hop_count >= HOP_COUNT_LIMIT))
+ {
+ error0 = DHCPV6_RELAY_PKT_DROP_MAX_HOPS;
+ next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
+ pkts_no_exceeding_max_hop++;
+ goto do_trace;
+ }
+
+
+ /* If relay-fwd and src address is site or global unicast address */
+ if (h0->u.msg_type == DHCPV6_MSG_RELAY_FORW &&
+ ((ip0->src_address.as_u8[0] & 0xe0) == 0x20 ||
+ (ip0->src_address.as_u8[0] & 0xfe) == 0xfc))
+ {
+ /* Set link address to zero */
+ r1->link_addr.as_u64[0] = 0;
+ r1->link_addr.as_u64[1] = 0;
+ goto link_address_set;
+ }
+
+ /* if receiving interface is unnumbered, use receiving interface
+ * IP address as link address, otherwise use the loopback interface
+ * IP address as link address.
+ */
+
+ swif = vnet_get_sw_interface (vnm, rx_sw_if_index);
+ if (swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
+ sw_if_index = swif->unnumbered_sw_if_index;
+
+ ia0 =
+ ip6_interface_first_global_or_site_address (&ip6_main,
+ sw_if_index);
+ if (ia0 == 0)
+ {
+ error0 = DHCPV6_PROXY_ERROR_NO_INTERFACE_ADDRESS;
+ next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
+ pkts_no_interface_address++;
+ goto do_trace;
+ }
+
+ copy_ip6_address (&r1->link_addr, ia0);
+
+ link_address_set:
+ fl =
+ vlib_buffer_get_free_list (vm,
+ vlib_buffer_get_free_list_index (b0));
+
+ if ((b0->current_length + sizeof (*id1) + sizeof (*vss1) +
+ sizeof (*cmac)) > fl->n_data_bytes)
+ {
+ error0 = DHCPV6_PROXY_ERROR_PKT_TOO_BIG;
+ next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
+ pkts_too_big++;
+ goto do_trace;
+ }
+
+ id1 = (dhcpv6_int_id_t *) (((uword) ip1) + b0->current_length);
+ b0->current_length += (sizeof (*id1));
+
+ id1->opt.option = clib_host_to_net_u16 (DHCPV6_OPTION_INTERFACE_ID);
+ id1->opt.length = clib_host_to_net_u16 (sizeof (rx_sw_if_index));
+ id1->int_idx = clib_host_to_net_u32 (rx_sw_if_index);
+
+ u1->length = 0;
+ if (h0->u.msg_type != DHCPV6_MSG_RELAY_FORW)
+ {
+ cmac =
+ (dhcpv6_client_mac_t *) (((uword) ip1) + b0->current_length);
+ b0->current_length += (sizeof (*cmac));
+ cmac->opt.length = clib_host_to_net_u16 (sizeof (*cmac) -
+ sizeof (cmac->opt));
+ cmac->opt.option =
+ clib_host_to_net_u16
+ (DHCPV6_OPTION_CLIENT_LINK_LAYER_ADDRESS);
+ cmac->link_type = clib_host_to_net_u16 (1); /* ethernet */
+ clib_memcpy (cmac->data, client_src_mac, 6);
+ u1->length += sizeof (*cmac);
+ }
+
+ vss = dhcp_get_vss_info (dpm, rx_fib_idx, FIB_PROTOCOL_IP6);
+
+ if (vss)
{
u16 id_len; /* length of VPN ID */
u16 type_len = sizeof (vss1->vss_type);
- vss1 = (dhcpv6_vss_t *) (((uword) ip1) + b0->current_length);
+ vss1 = (dhcpv6_vss_t *) (((uword) ip1) + b0->current_length);
vss1->vss_type = vss->vss_type;
if (vss->vss_type == VSS_TYPE_VPN_ID)
- {
+ {
id_len = sizeof (vss->vpn_id); /* vpn_id is 7 bytes */
memcpy (vss1->data, vss->vpn_id, id_len);
- }
+ }
else if (vss->vss_type == VSS_TYPE_ASCII)
- {
+ {
id_len = vec_len (vss->vpn_ascii_id);
memcpy (vss1->data, vss->vpn_ascii_id, id_len);
- }
- else /* must be VSS_TYPE_DEFAULT, no VPN ID */
+ }
+ else /* must be VSS_TYPE_DEFAULT, no VPN ID */
id_len = 0;
- vss1->opt.option = clib_host_to_net_u16 (DHCPV6_OPTION_VSS);
+ vss1->opt.option = clib_host_to_net_u16 (DHCPV6_OPTION_VSS);
vss1->opt.length = clib_host_to_net_u16 (type_len + id_len);
u1->length += type_len + id_len + sizeof (vss1->opt);
b0->current_length += type_len + id_len + sizeof (vss1->opt);
- }
-
- pkts_to_server++;
- u1->checksum = 0;
- u1->src_port = clib_host_to_net_u16(UDP_DST_PORT_dhcpv6_to_client);
- u1->dst_port = clib_host_to_net_u16(UDP_DST_PORT_dhcpv6_to_server);
-
- u1->length =
- clib_host_to_net_u16( clib_net_to_host_u16(fwd_opt->length) +
- sizeof(*r1) + sizeof(*fwd_opt) +
- sizeof(*u1) + sizeof(*id1) + u1->length);
-
- memset(ip1, 0, sizeof(*ip1));
- ip1->ip_version_traffic_class_and_flow_label = 0x60;
- ip1->payload_length = u1->length;
- ip1->protocol = PROTO_UDP;
- ip1->hop_limit = HOP_COUNT_LIMIT;
- src = ((server->dhcp_server.ip6.as_u64[0] ||
- server->dhcp_server.ip6.as_u64[1]) ?
- &server->dhcp_server.ip6 :
- &all_dhcpv6_server_address);
- copy_ip6_address(&ip1->dst_address, src);
-
-
- ia0 = ip6_interface_first_global_or_site_address
- (&ip6_main, vnet_buffer(b0)->sw_if_index[VLIB_RX]);
-
- src = (proxy->dhcp_src_address.ip6.as_u64[0] ||
- proxy->dhcp_src_address.ip6.as_u64[1]) ?
- &proxy->dhcp_src_address.ip6 : ia0;
- if (ia0 == 0)
- {
- error0 = DHCPV6_PROXY_ERROR_NO_SRC_ADDRESS;
- next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
- pkts_no_src_address++;
- goto do_trace;
- }
+ }
+
+ pkts_to_server++;
+ u1->checksum = 0;
+ u1->src_port = clib_host_to_net_u16 (UDP_DST_PORT_dhcpv6_to_client);
+ u1->dst_port = clib_host_to_net_u16 (UDP_DST_PORT_dhcpv6_to_server);
+
+ u1->length =
+ clib_host_to_net_u16 (clib_net_to_host_u16 (fwd_opt->length) +
+ sizeof (*r1) + sizeof (*fwd_opt) +
+ sizeof (*u1) + sizeof (*id1) + u1->length);
+
+ memset (ip1, 0, sizeof (*ip1));
+ ip1->ip_version_traffic_class_and_flow_label = 0x60;
+ ip1->payload_length = u1->length;
+ ip1->protocol = PROTO_UDP;
+ ip1->hop_limit = HOP_COUNT_LIMIT;
+ src = ((server->dhcp_server.ip6.as_u64[0] ||
+ server->dhcp_server.ip6.as_u64[1]) ?
+ &server->dhcp_server.ip6 : &all_dhcpv6_server_address);
+ copy_ip6_address (&ip1->dst_address, src);
+
+
+ ia0 = ip6_interface_first_global_or_site_address
+ (&ip6_main, vnet_buffer (b0)->sw_if_index[VLIB_RX]);
+
+ src = (proxy->dhcp_src_address.ip6.as_u64[0] ||
+ proxy->dhcp_src_address.ip6.as_u64[1]) ?
+ &proxy->dhcp_src_address.ip6 : ia0;
+ if (ia0 == 0)
+ {
+ error0 = DHCPV6_PROXY_ERROR_NO_SRC_ADDRESS;
+ next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
+ pkts_no_src_address++;
+ goto do_trace;
+ }
copy_ip6_address (&ip1->src_address, src);
- u1->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b0, ip1,
- &bogus_length);
- ASSERT(bogus_length == 0);
-
- next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_LOOKUP;
-
- is_solicit = (DHCPV6_MSG_SOLICIT == h0->u.msg_type);
-
- /*
- * If we have multiple servers configured and this is the
- * client's discover message, then send copies to each of
- * those servers
- */
- if (is_solicit && vec_len(proxy->dhcp_servers) > 1)
- {
- u32 ii;
-
- for (ii = 1; ii < vec_len(proxy->dhcp_servers); ii++)
- {
- vlib_buffer_t *c0;
- u32 ci0;
-
- c0 = vlib_buffer_copy(vm, b0);
- ci0 = vlib_get_buffer_index(vm, c0);
- server = &proxy->dhcp_servers[ii];
-
- ip0 = vlib_buffer_get_current (c0);
-
- src = ((server->dhcp_server.ip6.as_u64[0] ||
- server->dhcp_server.ip6.as_u64[1]) ?
- &server->dhcp_server.ip6 :
- &all_dhcpv6_server_address);
- copy_ip6_address(&ip1->dst_address, src);
-
- to_next[0] = ci0;
- to_next += 1;
- n_left_to_next -= 1;
-
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
- to_next, n_left_to_next,
- ci0, next0);
-
- if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
- {
- dhcpv6_proxy_trace_t *tr;
-
- tr = vlib_add_trace (vm, node, c0, sizeof (*tr));
- tr->which = 0; /* to server */
- tr->error = error0;
- tr->original_sw_if_index = rx_sw_if_index;
- tr->sw_if_index = sw_if_index;
- if (next0 == DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_LOOKUP)
- copy_ip6_address((ip6_address_t *)&tr->packet_data[0],
- &server->dhcp_server.ip6);
- }
-
- if (PREDICT_FALSE(0 == n_left_to_next))
- {
- vlib_put_next_frame (vm, node, next_index,
- n_left_to_next);
- vlib_get_next_frame (vm, node, next_index,
- to_next, n_left_to_next);
- }
- }
- }
-
- do_trace:
- if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
- {
- dhcpv6_proxy_trace_t *tr = vlib_add_trace (vm, node,
- b0, sizeof (*tr));
- tr->which = 0; /* to server */
- tr->error = error0;
- tr->original_sw_if_index = rx_sw_if_index;
- tr->sw_if_index = sw_if_index;
- if (DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_LOOKUP == next0)
- copy_ip6_address((ip6_address_t *)&tr->packet_data[0], &server->dhcp_server.ip6);
- }
-
- do_enqueue:
+ u1->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b0, ip1,
+ &bogus_length);
+ ASSERT (bogus_length == 0);
+
+ next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_LOOKUP;
+
+ is_solicit = (DHCPV6_MSG_SOLICIT == h0->u.msg_type);
+
+ /*
+ * If we have multiple servers configured and this is the
+ * client's discover message, then send copies to each of
+ * those servers
+ */
+ if (is_solicit && vec_len (proxy->dhcp_servers) > 1)
+ {
+ u32 ii;
+
+ for (ii = 1; ii < vec_len (proxy->dhcp_servers); ii++)
+ {
+ vlib_buffer_t *c0;
+ u32 ci0;
+
+ c0 = vlib_buffer_copy (vm, b0);
+ ci0 = vlib_get_buffer_index (vm, c0);
+ server = &proxy->dhcp_servers[ii];
+
+ ip0 = vlib_buffer_get_current (c0);
+
+ src = ((server->dhcp_server.ip6.as_u64[0] ||
+ server->dhcp_server.ip6.as_u64[1]) ?
+ &server->dhcp_server.ip6 :
+ &all_dhcpv6_server_address);
+ copy_ip6_address (&ip1->dst_address, src);
+
+ to_next[0] = ci0;
+ to_next += 1;
+ n_left_to_next -= 1;
+
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
+ to_next, n_left_to_next,
+ ci0, next0);
+
+ if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ dhcpv6_proxy_trace_t *tr;
+
+ tr = vlib_add_trace (vm, node, c0, sizeof (*tr));
+ tr->which = 0; /* to server */
+ tr->error = error0;
+ tr->original_sw_if_index = rx_sw_if_index;
+ tr->sw_if_index = sw_if_index;
+ if (next0 == DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_LOOKUP)
+ copy_ip6_address ((ip6_address_t *) &
+ tr->packet_data[0],
+ &server->dhcp_server.ip6);
+ }
+
+ if (PREDICT_FALSE (0 == n_left_to_next))
+ {
+ vlib_put_next_frame (vm, node, next_index,
+ n_left_to_next);
+ vlib_get_next_frame (vm, node, next_index,
+ to_next, n_left_to_next);
+ }
+ }
+ }
+
+ do_trace:
+ if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ dhcpv6_proxy_trace_t *tr = vlib_add_trace (vm, node,
+ b0, sizeof (*tr));
+ tr->which = 0; /* to server */
+ tr->error = error0;
+ tr->original_sw_if_index = rx_sw_if_index;
+ tr->sw_if_index = sw_if_index;
+ if (DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_LOOKUP == next0)
+ copy_ip6_address ((ip6_address_t *) & tr->packet_data[0],
+ &server->dhcp_server.ip6);
+ }
+
+ do_enqueue:
to_next[0] = bi0;
to_next += 1;
n_left_to_next -= 1;
}
vlib_node_increment_counter (vm, dhcpv6_proxy_to_server_node.index,
- DHCPV6_PROXY_ERROR_RELAY_TO_CLIENT,
- pkts_to_client);
+ DHCPV6_PROXY_ERROR_RELAY_TO_CLIENT,
+ pkts_to_client);
vlib_node_increment_counter (vm, dhcpv6_proxy_to_server_node.index,
- DHCPV6_PROXY_ERROR_RELAY_TO_SERVER,
- pkts_to_server);
+ DHCPV6_PROXY_ERROR_RELAY_TO_SERVER,
+ pkts_to_server);
vlib_node_increment_counter (vm, dhcpv6_proxy_to_server_node.index,
- DHCPV6_PROXY_ERROR_NO_INTERFACE_ADDRESS,
- pkts_no_interface_address);
+ DHCPV6_PROXY_ERROR_NO_INTERFACE_ADDRESS,
+ pkts_no_interface_address);
vlib_node_increment_counter (vm, dhcpv6_proxy_to_server_node.index,
- DHCPV6_PROXY_ERROR_WRONG_MESSAGE_TYPE,
- pkts_wrong_msg_type);
+ DHCPV6_PROXY_ERROR_WRONG_MESSAGE_TYPE,
+ pkts_wrong_msg_type);
vlib_node_increment_counter (vm, dhcpv6_proxy_to_server_node.index,
- DHCPV6_PROXY_ERROR_NO_SRC_ADDRESS,
- pkts_no_src_address);
+ DHCPV6_PROXY_ERROR_NO_SRC_ADDRESS,
+ pkts_no_src_address);
vlib_node_increment_counter (vm, dhcpv6_proxy_to_server_node.index,
- DHCPV6_PROXY_ERROR_PKT_TOO_BIG,
- pkts_too_big);
+ DHCPV6_PROXY_ERROR_PKT_TOO_BIG, pkts_too_big);
return from_frame->n_vectors;
}
+/* *INDENT-OFF* */
VLIB_REGISTER_NODE (dhcpv6_proxy_to_server_node, static) = {
.function = dhcpv6_proxy_to_server_input,
.name = "dhcpv6-proxy-to-server",
.unformat_buffer = unformat_dhcpv6_proxy_header,
#endif
};
+/* *INDENT-ON* */
static uword
dhcpv6_proxy_to_client_input (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
{
- u32 n_left_from, * from;
+ u32 n_left_from, *from;
ethernet_main_t *em = ethernet_get_main (vm);
- dhcp_proxy_main_t * dm = &dhcp_proxy_main;
+ dhcp_proxy_main_t *dm = &dhcp_proxy_main;
dhcp_proxy_t *proxy;
dhcp_server_t *server;
- vnet_main_t * vnm = vnet_get_main();
+ vnet_main_t *vnm = vnet_get_main ();
int bogus_length;
from = vlib_frame_vector_args (from_frame);
while (n_left_from > 0)
{
u32 bi0;
- vlib_buffer_t * b0;
- udp_header_t * u0, *u1=0;
- dhcpv6_relay_hdr_t * h0;
- ip6_header_t * ip1 = 0, *ip0;
- ip6_address_t _ia0, * ia0 = &_ia0;
+ vlib_buffer_t *b0;
+ udp_header_t *u0, *u1 = 0;
+ dhcpv6_relay_hdr_t *h0;
+ ip6_header_t *ip1 = 0, *ip0;
+ ip6_address_t _ia0, *ia0 = &_ia0;
ip6_address_t client_address;
ethernet_interface_t *ei0;
ethernet_header_t *mac0;
vnet_hw_interface_t *hi0;
vlib_frame_t *f0;
- u32 * to_next0;
+ u32 *to_next0;
u32 sw_if_index = ~0;
u32 original_sw_if_index = ~0;
vnet_sw_interface_t *si0;
- u32 error0 = (u32)~0;
+ u32 error0 = (u32) ~ 0;
vnet_sw_interface_t *swif;
dhcpv6_option_t *r0 = 0, *o;
u16 len = 0;
u8 interface_opt_flag = 0;
u8 relay_msg_opt_flag = 0;
- ip6_main_t * im = &ip6_main;
+ ip6_main_t *im = &ip6_main;
u32 server_fib_idx, client_fib_idx;
bi0 = from[0];
h0 = vlib_buffer_get_current (b0);
if (DHCPV6_MSG_RELAY_REPL != h0->msg_type)
- {
- error0 = DHCPV6_PROXY_ERROR_WRONG_MESSAGE_TYPE;
-
- drop_packet:
- vlib_node_increment_counter (vm, dhcpv6_proxy_to_client_node.index,
- error0, 1);
-
- f0 = vlib_get_frame_to_node (vm, dm->error_drop_node_index);
- to_next0 = vlib_frame_vector_args (f0);
- to_next0[0] = bi0;
- f0->n_vectors = 1;
- vlib_put_frame_to_node (vm, dm->error_drop_node_index, f0);
- goto do_trace;
- }
+ {
+ error0 = DHCPV6_PROXY_ERROR_WRONG_MESSAGE_TYPE;
+
+ drop_packet:
+ vlib_node_increment_counter (vm, dhcpv6_proxy_to_client_node.index,
+ error0, 1);
+
+ f0 = vlib_get_frame_to_node (vm, dm->error_drop_node_index);
+ to_next0 = vlib_frame_vector_args (f0);
+ to_next0[0] = bi0;
+ f0->n_vectors = 1;
+ vlib_put_frame_to_node (vm, dm->error_drop_node_index, f0);
+ goto do_trace;
+ }
/* hop count seems not need to be checked */
if (HOP_COUNT_LIMIT < h0->hop_count)
- {
- error0 = DHCPV6_RELAY_PKT_DROP_MAX_HOPS;
- goto drop_packet;
- }
- u0 = (void *)h0 -(sizeof(*u0));
- ip0 = (void *)u0 -(sizeof(*ip0));
-
- vlib_buffer_advance (b0, sizeof(*h0));
+ {
+ error0 = DHCPV6_RELAY_PKT_DROP_MAX_HOPS;
+ goto drop_packet;
+ }
+ u0 = (void *) h0 - (sizeof (*u0));
+ ip0 = (void *) u0 - (sizeof (*ip0));
+
+ vlib_buffer_advance (b0, sizeof (*h0));
o = vlib_buffer_get_current (b0);
/* Parse through TLVs looking for option 18 (DHCPV6_OPTION_INTERFACE_ID)
to track down the client-facing interface */
while ((u8 *) o < (b0->data + b0->current_data + b0->current_length))
- {
- if (DHCPV6_OPTION_INTERFACE_ID == clib_net_to_host_u16(o->option))
- {
- interface_opt_flag = 1;
- if (clib_net_to_host_u16(o->length) == sizeof(sw_if_index))
- sw_if_index = clib_net_to_host_u32(((dhcpv6_int_id_t*)o)->int_idx);
- if (sw_if_index >= vec_len (im->fib_index_by_sw_if_index))
- {
- error0 = DHCPV6_PROXY_ERROR_WRONG_INTERFACE_ID_OPTION;
- goto drop_packet;
- }
- }
- if (DHCPV6_OPTION_RELAY_MSG == clib_net_to_host_u16(o->option))
- {
- relay_msg_opt_flag = 1;
- r0 = vlib_buffer_get_current (b0);
- }
- if ((relay_msg_opt_flag == 1) && (interface_opt_flag == 1))
- break;
- vlib_buffer_advance (b0, sizeof(*o) + clib_net_to_host_u16(o->length));
- o = (dhcpv6_option_t *) (((uword) o) + clib_net_to_host_u16(o->length) + sizeof(*o));
- }
+ {
+ if (DHCPV6_OPTION_INTERFACE_ID == clib_net_to_host_u16 (o->option))
+ {
+ interface_opt_flag = 1;
+ if (clib_net_to_host_u16 (o->length) == sizeof (sw_if_index))
+ sw_if_index =
+ clib_net_to_host_u32 (((dhcpv6_int_id_t *) o)->int_idx);
+ if (sw_if_index >= vec_len (im->fib_index_by_sw_if_index))
+ {
+ error0 = DHCPV6_PROXY_ERROR_WRONG_INTERFACE_ID_OPTION;
+ goto drop_packet;
+ }
+ }
+ if (DHCPV6_OPTION_RELAY_MSG == clib_net_to_host_u16 (o->option))
+ {
+ relay_msg_opt_flag = 1;
+ r0 = vlib_buffer_get_current (b0);
+ }
+ if ((relay_msg_opt_flag == 1) && (interface_opt_flag == 1))
+ break;
+ vlib_buffer_advance (b0,
+ sizeof (*o) +
+ clib_net_to_host_u16 (o->length));
+ o =
+ (dhcpv6_option_t *) (((uword) o) +
+ clib_net_to_host_u16 (o->length) +
+ sizeof (*o));
+ }
if ((relay_msg_opt_flag == 0) || (r0 == 0))
- {
- error0 = DHCPV6_PROXY_ERROR_NO_RELAY_MESSAGE_OPTION;
- goto drop_packet;
- }
+ {
+ error0 = DHCPV6_PROXY_ERROR_NO_RELAY_MESSAGE_OPTION;
+ goto drop_packet;
+ }
- if ((u32)~0 == sw_if_index)
- {
- error0 = DHCPV6_PROXY_ERROR_NO_CIRCUIT_ID_OPTION;
- goto drop_packet;
- }
+ if ((u32) ~ 0 == sw_if_index)
+ {
+ error0 = DHCPV6_PROXY_ERROR_NO_CIRCUIT_ID_OPTION;
+ goto drop_packet;
+ }
//Advance buffer to start of encapsulated DHCPv6 message
- vlib_buffer_advance (b0, sizeof(*r0));
+ vlib_buffer_advance (b0, sizeof (*r0));
client_fib_idx = im->mfib_index_by_sw_if_index[sw_if_index];
- proxy = dhcp_get_proxy(dm, client_fib_idx, FIB_PROTOCOL_IP6);
+ proxy = dhcp_get_proxy (dm, client_fib_idx, FIB_PROTOCOL_IP6);
if (NULL == proxy)
- {
- error0 = DHCPV6_PROXY_ERROR_NO_SERVER;
- goto drop_packet;
- }
+ {
+ error0 = DHCPV6_PROXY_ERROR_NO_SERVER;
+ goto drop_packet;
+ }
server_fib_idx = im->fib_index_by_sw_if_index
- [vnet_buffer(b0)->sw_if_index[VLIB_RX]];
+ [vnet_buffer (b0)->sw_if_index[VLIB_RX]];
- vec_foreach(server, proxy->dhcp_servers)
+ vec_foreach (server, proxy->dhcp_servers)
{
- if (server_fib_idx == server->server_fib_index &&
- ip0->src_address.as_u64[0] == server->dhcp_server.ip6.as_u64[0] &&
- ip0->src_address.as_u64[1] == server->dhcp_server.ip6.as_u64[1])
- {
- goto server_found;
- }
+ if (server_fib_idx == server->server_fib_index &&
+ ip0->src_address.as_u64[0] == server->dhcp_server.ip6.as_u64[0] &&
+ ip0->src_address.as_u64[1] == server->dhcp_server.ip6.as_u64[1])
+ {
+ goto server_found;
+ }
}
//drop packet if not from server with configured address or FIB
server_found:
vnet_buffer (b0)->sw_if_index[VLIB_TX] = original_sw_if_index
- = sw_if_index;
+ = sw_if_index;
swif = vnet_get_sw_interface (vnm, original_sw_if_index);
if (swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
- sw_if_index = swif->unnumbered_sw_if_index;
+ sw_if_index = swif->unnumbered_sw_if_index;
/*
* udp_local hands us the DHCPV6 header, need udp hdr,
* ip hdr to relay to client
*/
- vlib_buffer_advance (b0, -(sizeof(*u1)));
+ vlib_buffer_advance (b0, -(sizeof (*u1)));
u1 = vlib_buffer_get_current (b0);
- vlib_buffer_advance (b0, -(sizeof(*ip1)));
+ vlib_buffer_advance (b0, -(sizeof (*ip1)));
ip1 = vlib_buffer_get_current (b0);
- copy_ip6_address(&client_address, &h0->peer_addr);
+ copy_ip6_address (&client_address, &h0->peer_addr);
ia0 = ip6_interface_first_address (&ip6_main, sw_if_index);
if (ia0 == 0)
- {
- error0 = DHCPV6_PROXY_ERROR_NO_INTERFACE_ADDRESS;
- goto drop_packet;
- }
-
- len = clib_net_to_host_u16(r0->length);
- memset(ip1, 0, sizeof(*ip1));
- copy_ip6_address(&ip1->dst_address, &client_address);
+ {
+ error0 = DHCPV6_PROXY_ERROR_NO_INTERFACE_ADDRESS;
+ goto drop_packet;
+ }
+
+ len = clib_net_to_host_u16 (r0->length);
+ memset (ip1, 0, sizeof (*ip1));
+ copy_ip6_address (&ip1->dst_address, &client_address);
u1->checksum = 0;
u1->src_port = clib_net_to_host_u16 (UDP_DST_PORT_dhcpv6_to_server);
u1->dst_port = clib_net_to_host_u16 (UDP_DST_PORT_dhcpv6_to_client);
- u1->length = clib_host_to_net_u16 (len + sizeof(udp_header_t));
+ u1->length = clib_host_to_net_u16 (len + sizeof (udp_header_t));
ip1->ip_version_traffic_class_and_flow_label =
- ip0->ip_version_traffic_class_and_flow_label &
- 0x00000fff;
- ip1->payload_length = u1->length;
+ ip0->ip_version_traffic_class_and_flow_label & 0x00000fff;
+ ip1->payload_length = u1->length;
ip1->protocol = PROTO_UDP;
ip1->hop_limit = HOP_COUNT_LIMIT;
- copy_ip6_address(&ip1->src_address, ia0);
+ copy_ip6_address (&ip1->src_address, ia0);
- u1->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b0, ip1,
- &bogus_length);
- ASSERT(bogus_length == 0);
+ u1->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b0, ip1,
+ &bogus_length);
+ ASSERT (bogus_length == 0);
- vlib_buffer_advance (b0, -(sizeof(ethernet_header_t)));
+ vlib_buffer_advance (b0, -(sizeof (ethernet_header_t)));
si0 = vnet_get_sw_interface (vnm, original_sw_if_index);
if (si0->type == VNET_SW_INTERFACE_TYPE_SUB)
- vlib_buffer_advance (b0, -4 /* space for VLAN tag */);
+ vlib_buffer_advance (b0, -4 /* space for VLAN tag */ );
mac0 = vlib_buffer_get_current (b0);
clib_memcpy (mac0->src_address, ei0->address, sizeof (ei0->address));
memset (&mac0->dst_address, 0xff, sizeof (mac0->dst_address));
mac0->type = (si0->type == VNET_SW_INTERFACE_TYPE_SUB) ?
- clib_net_to_host_u16(0x8100) : clib_net_to_host_u16 (0x86dd);
+ clib_net_to_host_u16 (0x8100) : clib_net_to_host_u16 (0x86dd);
if (si0->type == VNET_SW_INTERFACE_TYPE_SUB)
{
- u32 * vlan_tag = (u32 *)(mac0+1);
+ u32 *vlan_tag = (u32 *) (mac0 + 1);
u32 tmp;
tmp = (si0->sub.id << 16) | 0x0800;
*vlan_tag = clib_host_to_net_u32 (tmp);
vlib_put_frame_to_node (vm, hi0->output_node_index, f0);
do_trace:
- if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
- {
- dhcpv6_proxy_trace_t *tr = vlib_add_trace (vm, node,
- b0, sizeof (*tr));
- tr->which = 1; /* to client */
- if (ia0)
- copy_ip6_address((ip6_address_t*)tr->packet_data, ia0);
- tr->error = error0;
- tr->original_sw_if_index = original_sw_if_index;
- tr->sw_if_index = sw_if_index;
- }
+ if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ dhcpv6_proxy_trace_t *tr = vlib_add_trace (vm, node,
+ b0, sizeof (*tr));
+ tr->which = 1; /* to client */
+ if (ia0)
+ copy_ip6_address ((ip6_address_t *) tr->packet_data, ia0);
+ tr->error = error0;
+ tr->original_sw_if_index = original_sw_if_index;
+ tr->sw_if_index = sw_if_index;
+ }
}
return from_frame->n_vectors;
}
+/* *INDENT-OFF* */
VLIB_REGISTER_NODE (dhcpv6_proxy_to_client_node, static) = {
.function = dhcpv6_proxy_to_client_input,
.name = "dhcpv6-proxy-to-client",
.unformat_buffer = unformat_dhcpv6_proxy_header,
#endif
};
+/* *INDENT-ON* */
static clib_error_t *
dhcp6_proxy_init (vlib_main_t * vm)
{
- dhcp_proxy_main_t * dm = &dhcp_proxy_main;
- vlib_node_t * error_drop_node;
+ dhcp_proxy_main_t *dm = &dhcp_proxy_main;
+ vlib_node_t *error_drop_node;
error_drop_node = vlib_get_node_by_name (vm, (u8 *) "error-drop");
dm->error_drop_node_index = error_drop_node->index;
/* RFC says this is the dhcpv6 server address */
- all_dhcpv6_server_address.as_u64[0] = clib_host_to_net_u64 (0xFF05000000000000);
+ all_dhcpv6_server_address.as_u64[0] =
+ clib_host_to_net_u64 (0xFF05000000000000);
all_dhcpv6_server_address.as_u64[1] = clib_host_to_net_u64 (0x00010003);
/* RFC says this is the server and agent address */
- all_dhcpv6_server_relay_agent_address.as_u64[0] = clib_host_to_net_u64 (0xFF02000000000000);
- all_dhcpv6_server_relay_agent_address.as_u64[1] = clib_host_to_net_u64 (0x00010002);
+ all_dhcpv6_server_relay_agent_address.as_u64[0] =
+ clib_host_to_net_u64 (0xFF02000000000000);
+ all_dhcpv6_server_relay_agent_address.as_u64[1] =
+ clib_host_to_net_u64 (0x00010002);
udp_register_dst_port (vm, UDP_DST_PORT_dhcpv6_to_client,
- dhcpv6_proxy_to_client_node.index, 0 /* is_ip6 */);
+ dhcpv6_proxy_to_client_node.index, 0 /* is_ip6 */ );
udp_register_dst_port (vm, UDP_DST_PORT_dhcpv6_to_server,
- dhcpv6_proxy_to_server_node.index, 0 /* is_ip6 */);
+ dhcpv6_proxy_to_server_node.index, 0 /* is_ip6 */ );
return 0;
}
VLIB_INIT_FUNCTION (dhcp6_proxy_init);
int
-dhcp6_proxy_set_server (ip46_address_t *addr,
- ip46_address_t *src_addr,
- u32 rx_table_id,
- u32 server_table_id,
- int is_del)
+dhcp6_proxy_set_server (ip46_address_t * addr,
+ ip46_address_t * src_addr,
+ u32 rx_table_id, u32 server_table_id, int is_del)
{
u32 rx_fib_index = 0;
int rc = 0;
const mfib_prefix_t all_dhcp_servers = {
- .fp_len = 128,
- .fp_proto = FIB_PROTOCOL_IP6,
- .fp_grp_addr = {
- .ip6 = all_dhcpv6_server_relay_agent_address,
- }
+ .fp_len = 128,
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_grp_addr = {
+ .ip6 = all_dhcpv6_server_relay_agent_address,
+ }
};
- if (ip46_address_is_zero(addr))
+ if (ip46_address_is_zero (addr))
return VNET_API_ERROR_INVALID_DST_ADDRESS;
-
- if (ip46_address_is_zero(src_addr))
+
+ if (ip46_address_is_zero (src_addr))
return VNET_API_ERROR_INVALID_SRC_ADDRESS;
- rx_fib_index = mfib_table_find_or_create_and_lock(FIB_PROTOCOL_IP6,
- rx_table_id,
- MFIB_SOURCE_DHCP);
+ rx_fib_index = mfib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6,
+ rx_table_id,
+ MFIB_SOURCE_DHCP);
if (is_del)
{
if (dhcp_proxy_server_del (FIB_PROTOCOL_IP6, rx_fib_index,
- addr, server_table_id))
- {
- mfib_table_entry_delete(rx_fib_index,
- &all_dhcp_servers,
- MFIB_SOURCE_DHCP);
- mfib_table_unlock(rx_fib_index, FIB_PROTOCOL_IP6, MFIB_SOURCE_DHCP);
- }
+ addr, server_table_id))
+ {
+ mfib_table_entry_delete (rx_fib_index,
+ &all_dhcp_servers, MFIB_SOURCE_DHCP);
+ mfib_table_unlock (rx_fib_index, FIB_PROTOCOL_IP6,
+ MFIB_SOURCE_DHCP);
+ }
}
else
{
- const fib_route_path_t path_for_us = {
- .frp_proto = DPO_PROTO_IP6,
- .frp_addr = zero_addr,
- .frp_sw_if_index = 0xffffffff,
- .frp_fib_index = ~0,
- .frp_weight = 0,
- .frp_flags = FIB_ROUTE_PATH_LOCAL,
+ const fib_route_path_t path_for_us = {
+ .frp_proto = DPO_PROTO_IP6,
+ .frp_addr = zero_addr,
+ .frp_sw_if_index = 0xffffffff,
+ .frp_fib_index = ~0,
+ .frp_weight = 0,
+ .frp_flags = FIB_ROUTE_PATH_LOCAL,
};
- if (dhcp_proxy_server_add (FIB_PROTOCOL_IP6, addr, src_addr,
- rx_fib_index, server_table_id))
- {
- mfib_table_entry_path_update(rx_fib_index,
- &all_dhcp_servers,
- MFIB_SOURCE_DHCP,
- &path_for_us,
- MFIB_ITF_FLAG_FORWARD);
- /*
- * Each interface that is enabled in this table, needs to be added
- * as an accepting interface, but this is not easily doable in VPP.
- * So we cheat. Add a flag to the entry that indicates accept form
- * any interface.
- * We will still only accept on v6 enabled interfaces, since the
- * input feature ensures this.
- */
- mfib_table_entry_update(rx_fib_index,
- &all_dhcp_servers,
- MFIB_SOURCE_DHCP,
- MFIB_RPF_ID_NONE,
- MFIB_ENTRY_FLAG_ACCEPT_ALL_ITF);
- mfib_table_lock(rx_fib_index, FIB_PROTOCOL_IP6, MFIB_SOURCE_DHCP);
- }
+ if (dhcp_proxy_server_add (FIB_PROTOCOL_IP6, addr, src_addr,
+ rx_fib_index, server_table_id))
+ {
+ mfib_table_entry_path_update (rx_fib_index,
+ &all_dhcp_servers,
+ MFIB_SOURCE_DHCP,
+ &path_for_us, MFIB_ITF_FLAG_FORWARD);
+ /*
+ * Each interface that is enabled in this table, needs to be added
+ * as an accepting interface, but this is not easily doable in VPP.
+ * So we cheat. Add a flag to the entry that indicates accept form
+ * any interface.
+ * We will still only accept on v6 enabled interfaces, since the
+ * input feature ensures this.
+ */
+ mfib_table_entry_update (rx_fib_index,
+ &all_dhcp_servers,
+ MFIB_SOURCE_DHCP,
+ MFIB_RPF_ID_NONE,
+ MFIB_ENTRY_FLAG_ACCEPT_ALL_ITF);
+ mfib_table_lock (rx_fib_index, FIB_PROTOCOL_IP6, MFIB_SOURCE_DHCP);
+ }
}
- mfib_table_unlock(rx_fib_index, FIB_PROTOCOL_IP6, MFIB_SOURCE_DHCP);
+ mfib_table_unlock (rx_fib_index, FIB_PROTOCOL_IP6, MFIB_SOURCE_DHCP);
return (rc);
}
static clib_error_t *
dhcpv6_proxy_set_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
{
ip46_address_t addr, src_addr;
int set_server = 0, set_src_address = 0;
u32 rx_table_id = 0, server_table_id = 0;
int is_del = 0;
- while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
- if (unformat (input, "server %U",
- unformat_ip6_address, &addr.ip6))
- set_server = 1;
- else if (unformat(input, "src-address %U",
- unformat_ip6_address, &src_addr.ip6))
- set_src_address =1;
- else if (unformat (input, "server-fib-id %d", &server_table_id))
- ;
- else if (unformat (input, "rx-fib-id %d", &rx_table_id))
- ;
- else if (unformat (input, "delete") ||
- unformat (input, "del"))
- is_del = 1;
+ if (unformat (input, "server %U", unformat_ip6_address, &addr.ip6))
+ set_server = 1;
+ else if (unformat (input, "src-address %U",
+ unformat_ip6_address, &src_addr.ip6))
+ set_src_address = 1;
+ else if (unformat (input, "server-fib-id %d", &server_table_id))
+ ;
+ else if (unformat (input, "rx-fib-id %d", &rx_table_id))
+ ;
+ else if (unformat (input, "delete") || unformat (input, "del"))
+ is_del = 1;
else
- break;
+ break;
}
if (is_del || (set_server && set_src_address))
- {
+ {
int rv;
rv = dhcp6_proxy_set_server (&addr, &src_addr, rx_table_id,
- server_table_id, is_del);
+ server_table_id, is_del);
//TODO: Complete the errors
switch (rv)
- {
- case 0:
- return 0;
+ {
+ case 0:
+ return 0;
- case VNET_API_ERROR_INVALID_DST_ADDRESS:
- return clib_error_return (0, "Invalid server address");
+ case VNET_API_ERROR_INVALID_DST_ADDRESS:
+ return clib_error_return (0, "Invalid server address");
- case VNET_API_ERROR_INVALID_SRC_ADDRESS:
- return clib_error_return (0, "Invalid src address");
+ case VNET_API_ERROR_INVALID_SRC_ADDRESS:
+ return clib_error_return (0, "Invalid src address");
- case VNET_API_ERROR_NO_SUCH_ENTRY:
- return clib_error_return
- (0, "Fib id %d: no per-fib DHCP server configured", rx_table_id);
+ case VNET_API_ERROR_NO_SUCH_ENTRY:
+ return clib_error_return
+ (0, "Fib id %d: no per-fib DHCP server configured", rx_table_id);
- default:
- return clib_error_return (0, "BUG: rv %d", rv);
- }
- }
+ default:
+ return clib_error_return (0, "BUG: rv %d", rv);
+ }
+ }
else
return clib_error_return (0, "parse error`%U'",
- format_unformat_error, input);
+ format_unformat_error, input);
}
+/* *INDENT-OFF* */
VLIB_CLI_COMMAND (dhcpv6_proxy_set_command, static) = {
.path = "set dhcpv6 proxy",
.short_help = "set dhcpv6 proxy [del] server <ipv6-addr> src-address <ipv6-addr> "
"[server-fib-id <fib-id>] [rx-fib-id <fib-id>] ",
.function = dhcpv6_proxy_set_command_fn,
};
+/* *INDENT-ON* */
static u8 *
format_dhcp6_proxy_server (u8 * s, va_list * args)
{
- dhcp_proxy_t * proxy = va_arg (*args, dhcp_proxy_t *);
+ dhcp_proxy_t *proxy = va_arg (*args, dhcp_proxy_t *);
fib_table_t *server_fib;
dhcp_server_t *server;
ip6_mfib_t *rx_fib;
if (proxy == 0)
{
- s = format (s, "%=14s%=16s%s", "RX FIB", "Src Address",
- "Servers FIB,Address");
+ s = format (s, "%=14s%=16s%s", "RX FIB", "Src Address",
+ "Servers FIB,Address");
return s;
}
- rx_fib = ip6_mfib_get(proxy->rx_fib_index);
+ rx_fib = ip6_mfib_get (proxy->rx_fib_index);
s = format (s, "%=14u%=16U",
- rx_fib->table_id,
- format_ip46_address, &proxy->dhcp_src_address, IP46_TYPE_ANY);
+ rx_fib->table_id,
+ format_ip46_address, &proxy->dhcp_src_address, IP46_TYPE_ANY);
- vec_foreach(server, proxy->dhcp_servers)
+ vec_foreach (server, proxy->dhcp_servers)
{
- server_fib = fib_table_get(server->server_fib_index,
- FIB_PROTOCOL_IP6);
- s = format (s, "%u,%U ",
- server_fib->ft_table_id,
- format_ip46_address, &server->dhcp_server, IP46_TYPE_ANY);
+ server_fib = fib_table_get (server->server_fib_index, FIB_PROTOCOL_IP6);
+ s = format (s, "%u,%U ",
+ server_fib->ft_table_id,
+ format_ip46_address, &server->dhcp_server, IP46_TYPE_ANY);
}
return s;
}
static int
-dhcp6_proxy_show_walk (dhcp_proxy_t *proxy,
- void *ctx)
+dhcp6_proxy_show_walk (dhcp_proxy_t * proxy, void *ctx)
{
- vlib_main_t * vm = ctx;
+ vlib_main_t *vm = ctx;
- vlib_cli_output (vm, "%U", format_dhcp6_proxy_server, proxy);
+ vlib_cli_output (vm, "%U", format_dhcp6_proxy_server, proxy);
- return (1);
+ return (1);
}
static clib_error_t *
dhcpv6_proxy_show_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
{
- vlib_cli_output (vm, "%U", format_dhcp6_proxy_server, NULL /* header line */);
+ vlib_cli_output (vm, "%U", format_dhcp6_proxy_server,
+ NULL /* header line */ );
- dhcp_proxy_walk(FIB_PROTOCOL_IP6, dhcp6_proxy_show_walk, vm);
+ dhcp_proxy_walk (FIB_PROTOCOL_IP6, dhcp6_proxy_show_walk, vm);
return (NULL);
}
+/* *INDENT-OFF* */
VLIB_CLI_COMMAND (dhcpv6_proxy_show_command, static) = {
.path = "show dhcpv6 proxy",
.short_help = "Display dhcpv6 proxy info",
.function = dhcpv6_proxy_show_command_fn,
};
+/* *INDENT-ON* */
static clib_error_t *
dhcpv6_vss_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ unformat_input_t * input, vlib_cli_command_t * cmd)
{
u8 is_del = 0, vss_type = VSS_TYPE_DEFAULT;
u8 *vpn_ascii_id = 0;
u32 oui = 0, fib_id = 0, tbl_id = ~0;
- while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "table %d", &tbl_id))
- ;
+ ;
else if (unformat (input, "oui %d", &oui))
- vss_type = VSS_TYPE_VPN_ID;
+ vss_type = VSS_TYPE_VPN_ID;
else if (unformat (input, "vpn-id %d", &fib_id))
- vss_type = VSS_TYPE_VPN_ID;
+ vss_type = VSS_TYPE_VPN_ID;
else if (unformat (input, "vpn-ascii-id %s", &vpn_ascii_id))
- vss_type = VSS_TYPE_ASCII;
- else if (unformat(input, "delete") || unformat(input, "del"))
- is_del = 1;
+ vss_type = VSS_TYPE_ASCII;
+ else if (unformat (input, "delete") || unformat (input, "del"))
+ is_del = 1;
else
- break;
+ break;
}
- if (tbl_id ==~0)
- return clib_error_return (0, "no table ID specified.");
+ if (tbl_id == ~0)
+ return clib_error_return (0, "no table ID specified.");
- int rv = dhcp_proxy_set_vss(FIB_PROTOCOL_IP6, tbl_id, vss_type,
- vpn_ascii_id, oui, fib_id, is_del);
+ int rv = dhcp_proxy_set_vss (FIB_PROTOCOL_IP6, tbl_id, vss_type,
+ vpn_ascii_id, oui, fib_id, is_del);
switch (rv)
{
case 0:
- return 0;
+ return 0;
case VNET_API_ERROR_NO_SUCH_ENTRY:
- return clib_error_return (0, "vss for table %d not found in pool.",
- tbl_id);
+ return clib_error_return (0, "vss for table %d not found in pool.",
+ tbl_id);
default:
- return clib_error_return (0, "BUG: rv %d", rv);
+ return clib_error_return (0, "BUG: rv %d", rv);
}
}
+/* *INDENT-OFF* */
VLIB_CLI_COMMAND (dhcpv6_proxy_vss_command, static) = {
.path = "set dhcpv6 vss",
.short_help = "set dhcpv6 vss table <table-id> [oui <n> vpn-id <n> | vpn-ascii-id <text>]",
.function = dhcpv6_vss_command_fn,
};
+/* *INDENT-ON* */
static clib_error_t *
dhcpv6_vss_show_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
-
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
{
- dhcp_vss_walk(FIB_PROTOCOL_IP6, dhcp_vss_show_walk, vm);
+ dhcp_vss_walk (FIB_PROTOCOL_IP6, dhcp_vss_show_walk, vm);
return (NULL);
}
+/* *INDENT-OFF* */
VLIB_CLI_COMMAND (dhcpv6_proxy_vss_show_command, static) = {
.path = "show dhcpv6 vss",
.short_help = "show dhcpv6 VSS",
.function = dhcpv6_vss_show_command_fn,
};
+/* *INDENT-ON* */
static clib_error_t *
dhcpv6_link_address_show_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
-
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
{
- vnet_main_t *vnm = vnet_get_main();
- u32 sw_if_index0=0, sw_if_index;
+ vnet_main_t *vnm = vnet_get_main ();
+ u32 sw_if_index0 = 0, sw_if_index;
vnet_sw_interface_t *swif;
ip6_address_t *ia0;
- while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
- if (unformat(input, "%U",
- unformat_vnet_sw_interface, vnm, &sw_if_index0))
- {
- swif = vnet_get_sw_interface (vnm, sw_if_index0);
- sw_if_index = (swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED) ?
- swif->unnumbered_sw_if_index : sw_if_index0;
- ia0 = ip6_interface_first_address(&ip6_main, sw_if_index);
- if (ia0)
- {
- vlib_cli_output (vm, "%=20s%=48s", "interface", "link-address");
-
- vlib_cli_output (vm, "%=20U%=48U",
- format_vnet_sw_if_index_name, vnm, sw_if_index0,
- format_ip6_address, ia0);
- } else
- vlib_cli_output (vm, "%=34s%=20U", "No IPv6 address configured on",
- format_vnet_sw_if_index_name, vnm, sw_if_index);
- } else
- break;
+ if (unformat (input, "%U",
+ unformat_vnet_sw_interface, vnm, &sw_if_index0))
+ {
+ swif = vnet_get_sw_interface (vnm, sw_if_index0);
+ sw_if_index = (swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED) ?
+ swif->unnumbered_sw_if_index : sw_if_index0;
+ ia0 = ip6_interface_first_address (&ip6_main, sw_if_index);
+ if (ia0)
+ {
+ vlib_cli_output (vm, "%=20s%=48s", "interface", "link-address");
+
+ vlib_cli_output (vm, "%=20U%=48U",
+ format_vnet_sw_if_index_name, vnm,
+ sw_if_index0, format_ip6_address, ia0);
+ }
+ else
+ vlib_cli_output (vm, "%=34s%=20U",
+ "No IPv6 address configured on",
+ format_vnet_sw_if_index_name, vnm, sw_if_index);
+ }
+ else
+ break;
}
return 0;
}
+/* *INDENT-OFF* */
VLIB_CLI_COMMAND (dhcpv6_proxy_address_show_command, static) = {
.path = "show dhcpv6 link-address interface",
.short_help = "show dhcpv6 link-address interface <interface>",
.function = dhcpv6_link_address_show_command_fn,
};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
dhcp_proxy_main_t dhcp_proxy_main;
static void
-dhcp_proxy_rx_table_lock (fib_protocol_t proto,
- u32 fib_index)
+dhcp_proxy_rx_table_lock (fib_protocol_t proto, u32 fib_index)
{
- if (FIB_PROTOCOL_IP4 == proto)
- fib_table_lock(fib_index, proto, FIB_SOURCE_DHCP);
- else
- mfib_table_lock(fib_index, proto, MFIB_SOURCE_DHCP);
+ if (FIB_PROTOCOL_IP4 == proto)
+ fib_table_lock (fib_index, proto, FIB_SOURCE_DHCP);
+ else
+ mfib_table_lock (fib_index, proto, MFIB_SOURCE_DHCP);
}
static void
-dhcp_proxy_rx_table_unlock (fib_protocol_t proto,
- u32 fib_index)
+dhcp_proxy_rx_table_unlock (fib_protocol_t proto, u32 fib_index)
{
- if (FIB_PROTOCOL_IP4 == proto)
- fib_table_unlock(fib_index, proto, FIB_SOURCE_DHCP);
- else
- mfib_table_unlock(fib_index, proto, MFIB_SOURCE_DHCP);
+ if (FIB_PROTOCOL_IP4 == proto)
+ fib_table_unlock (fib_index, proto, FIB_SOURCE_DHCP);
+ else
+ mfib_table_unlock (fib_index, proto, MFIB_SOURCE_DHCP);
}
- u32
-dhcp_proxy_rx_table_get_table_id (fib_protocol_t proto,
- u32 fib_index)
+u32
+dhcp_proxy_rx_table_get_table_id (fib_protocol_t proto, u32 fib_index)
{
- if (FIB_PROTOCOL_IP4 == proto)
- {
- fib_table_t *fib;
+ if (FIB_PROTOCOL_IP4 == proto)
+ {
+ fib_table_t *fib;
- fib = fib_table_get(fib_index, proto);
+ fib = fib_table_get (fib_index, proto);
- return (fib->ft_table_id);
- }
- else
- {
- mfib_table_t *mfib;
+ return (fib->ft_table_id);
+ }
+ else
+ {
+ mfib_table_t *mfib;
- mfib = mfib_table_get(fib_index, proto);
+ mfib = mfib_table_get (fib_index, proto);
- return (mfib->mft_table_id);
- }
+ return (mfib->mft_table_id);
+ }
}
void
-dhcp_proxy_walk (fib_protocol_t proto,
- dhcp_proxy_walk_fn_t fn,
- void *ctx)
+dhcp_proxy_walk (fib_protocol_t proto, dhcp_proxy_walk_fn_t fn, void *ctx)
{
- dhcp_proxy_main_t * dpm = &dhcp_proxy_main;
- dhcp_proxy_t * server;
+ dhcp_proxy_main_t *dpm = &dhcp_proxy_main;
+ dhcp_proxy_t *server;
u32 server_index, i;
vec_foreach_index (i, dpm->dhcp_server_index_by_rx_fib_index[proto])
{
- server_index = dpm->dhcp_server_index_by_rx_fib_index[proto][i];
- if (~0 == server_index)
- continue;
+ server_index = dpm->dhcp_server_index_by_rx_fib_index[proto][i];
+ if (~0 == server_index)
+ continue;
- server = pool_elt_at_index (dpm->dhcp_servers[proto], server_index);
+ server = pool_elt_at_index (dpm->dhcp_servers[proto], server_index);
- if (!fn(server, ctx))
- break;
- }
+ if (!fn (server, ctx))
+ break;
+ }
}
void
-dhcp_vss_walk (fib_protocol_t proto,
- dhcp_vss_walk_fn_t fn,
- void *ctx)
+dhcp_vss_walk (fib_protocol_t proto, dhcp_vss_walk_fn_t fn, void *ctx)
{
- dhcp_proxy_main_t * dpm = &dhcp_proxy_main;
+ dhcp_proxy_main_t *dpm = &dhcp_proxy_main;
mfib_table_t *mfib;
- dhcp_vss_t * vss;
+ dhcp_vss_t *vss;
u32 vss_index, i;
fib_table_t *fib;
vec_foreach_index (i, dpm->vss_index_by_rx_fib_index[proto])
{
- vss_index = dpm->vss_index_by_rx_fib_index[proto][i];
- if (~0 == vss_index)
- continue;
+ vss_index = dpm->vss_index_by_rx_fib_index[proto][i];
+ if (~0 == vss_index)
+ continue;
- vss = pool_elt_at_index (dpm->vss[proto], vss_index);
+ vss = pool_elt_at_index (dpm->vss[proto], vss_index);
- if (FIB_PROTOCOL_IP4 == proto)
- {
- fib = fib_table_get(i, proto);
+ if (FIB_PROTOCOL_IP4 == proto)
+ {
+ fib = fib_table_get (i, proto);
- if (!fn(vss, fib->ft_table_id, ctx))
- break;
- }
- else
- {
- mfib = mfib_table_get(i, proto);
+ if (!fn (vss, fib->ft_table_id, ctx))
+ break;
+ }
+ else
+ {
+ mfib = mfib_table_get (i, proto);
- if (!fn(vss, mfib->mft_table_id, ctx))
- break;
- }
- }
+ if (!fn (vss, mfib->mft_table_id, ctx))
+ break;
+ }
+ }
}
static u32
-dhcp_proxy_server_find (dhcp_proxy_t *proxy,
- fib_protocol_t proto,
- ip46_address_t *addr,
- u32 server_table_id)
+dhcp_proxy_server_find (dhcp_proxy_t * proxy,
+ fib_protocol_t proto,
+ ip46_address_t * addr, u32 server_table_id)
{
- dhcp_server_t *server;
- u32 ii, fib_index;
+ dhcp_server_t *server;
+ u32 ii, fib_index;
- vec_foreach_index(ii, proxy->dhcp_servers)
- {
- server = &proxy->dhcp_servers[ii];
- fib_index = fib_table_find(proto, server_table_id);
-
- if (ip46_address_is_equal(&server->dhcp_server,
- addr) &&
- (server->server_fib_index == fib_index))
- {
- return (ii);
- }
- }
- return (~0);
+ vec_foreach_index (ii, proxy->dhcp_servers)
+ {
+ server = &proxy->dhcp_servers[ii];
+ fib_index = fib_table_find (proto, server_table_id);
+
+ if (ip46_address_is_equal (&server->dhcp_server,
+ addr) &&
+ (server->server_fib_index == fib_index))
+ {
+ return (ii);
+ }
+ }
+ return (~0);
}
int
dhcp_proxy_server_del (fib_protocol_t proto,
- u32 rx_fib_index,
- ip46_address_t *addr,
- u32 server_table_id)
+ u32 rx_fib_index,
+ ip46_address_t * addr, u32 server_table_id)
{
- dhcp_proxy_main_t * dpm = &dhcp_proxy_main;
+ dhcp_proxy_main_t *dpm = &dhcp_proxy_main;
dhcp_proxy_t *proxy = 0;
- proxy = dhcp_get_proxy(dpm, rx_fib_index, proto);
+ proxy = dhcp_get_proxy (dpm, rx_fib_index, proto);
if (NULL != proxy)
- {
+ {
dhcp_server_t *server;
u32 index;
- index = dhcp_proxy_server_find(proxy, proto, addr, server_table_id);
+ index = dhcp_proxy_server_find (proxy, proto, addr, server_table_id);
if (~0 != index)
- {
- server = &proxy->dhcp_servers[index];
- fib_table_unlock (server->server_fib_index, proto, FIB_SOURCE_DHCP);
-
- vec_del1(proxy->dhcp_servers, index);
-
- if (0 == vec_len(proxy->dhcp_servers))
- {
- /* no servers left, delete the proxy config */
- dpm->dhcp_server_index_by_rx_fib_index[proto][rx_fib_index] = ~0;
- vec_free(proxy->dhcp_servers);
- pool_put (dpm->dhcp_servers[proto], proxy);
- return (1);
- }
- }
- }
+ {
+ server = &proxy->dhcp_servers[index];
+ fib_table_unlock (server->server_fib_index, proto, FIB_SOURCE_DHCP);
+
+ vec_del1 (proxy->dhcp_servers, index);
+
+ if (0 == vec_len (proxy->dhcp_servers))
+ {
+ /* no servers left, delete the proxy config */
+ dpm->dhcp_server_index_by_rx_fib_index[proto][rx_fib_index] =
+ ~0;
+ vec_free (proxy->dhcp_servers);
+ pool_put (dpm->dhcp_servers[proto], proxy);
+ return (1);
+ }
+ }
+ }
/* the proxy still exists */
return (0);
int
dhcp_proxy_server_add (fib_protocol_t proto,
- ip46_address_t *addr,
- ip46_address_t *src_address,
- u32 rx_fib_index,
- u32 server_table_id)
+ ip46_address_t * addr,
+ ip46_address_t * src_address,
+ u32 rx_fib_index, u32 server_table_id)
{
- dhcp_proxy_main_t * dpm = &dhcp_proxy_main;
- dhcp_proxy_t * proxy = 0;
+ dhcp_proxy_main_t *dpm = &dhcp_proxy_main;
+ dhcp_proxy_t *proxy = 0;
int new = 0;
- proxy = dhcp_get_proxy(dpm, rx_fib_index, proto);
+ proxy = dhcp_get_proxy (dpm, rx_fib_index, proto);
if (NULL == proxy)
- {
- vec_validate_init_empty(dpm->dhcp_server_index_by_rx_fib_index[proto],
- rx_fib_index,
- ~0);
+ {
+ vec_validate_init_empty (dpm->dhcp_server_index_by_rx_fib_index[proto],
+ rx_fib_index, ~0);
pool_get (dpm->dhcp_servers[proto], proxy);
memset (proxy, 0, sizeof (*proxy));
new = 1;
dpm->dhcp_server_index_by_rx_fib_index[proto][rx_fib_index] =
- proxy - dpm->dhcp_servers[proto];
+ proxy - dpm->dhcp_servers[proto];
proxy->dhcp_src_address = *src_address;
proxy->rx_fib_index = rx_fib_index;
- }
+ }
else
- {
- if (~0 != dhcp_proxy_server_find(proxy, proto, addr, server_table_id))
- {
- return (new);
- }
- }
+ {
+ if (~0 != dhcp_proxy_server_find (proxy, proto, addr, server_table_id))
+ {
+ return (new);
+ }
+ }
dhcp_server_t server = {
- .dhcp_server = *addr,
- .server_fib_index = fib_table_find_or_create_and_lock(proto,
- server_table_id,
- FIB_SOURCE_DHCP),
+ .dhcp_server = *addr,
+ .server_fib_index = fib_table_find_or_create_and_lock (proto,
+ server_table_id,
+ FIB_SOURCE_DHCP),
};
- vec_add1(proxy->dhcp_servers, server);
+ vec_add1 (proxy->dhcp_servers, server);
return (new);
}
typedef struct dhcp4_proxy_dump_walk_ctx_t_
{
- fib_protocol_t proto;
- void *opaque;
- u32 context;
+ fib_protocol_t proto;
+ void *opaque;
+ u32 context;
} dhcp_proxy_dump_walk_cxt_t;
static int
-dhcp_proxy_dump_walk (dhcp_proxy_t *proxy,
- void *arg)
+dhcp_proxy_dump_walk (dhcp_proxy_t * proxy, void *arg)
{
dhcp_proxy_dump_walk_cxt_t *ctx = arg;
- dhcp_send_details(ctx->proto,
- ctx->opaque,
- ctx->context,
- proxy);
+ dhcp_send_details (ctx->proto, ctx->opaque, ctx->context, proxy);
return (1);
}
void
-dhcp_proxy_dump (fib_protocol_t proto,
- void *opaque,
- u32 context)
+dhcp_proxy_dump (fib_protocol_t proto, void *opaque, u32 context)
{
- dhcp_proxy_dump_walk_cxt_t ctx = {
- .proto = proto,
- .opaque = opaque,
- .context = context,
- };
- dhcp_proxy_walk(proto, dhcp_proxy_dump_walk, &ctx);
+ dhcp_proxy_dump_walk_cxt_t ctx = {
+ .proto = proto,
+ .opaque = opaque,
+ .context = context,
+ };
+ dhcp_proxy_walk (proto, dhcp_proxy_dump_walk, &ctx);
}
int
-dhcp_vss_show_walk (dhcp_vss_t *vss,
- u32 rx_table_id,
- void *ctx)
+dhcp_vss_show_walk (dhcp_vss_t * vss, u32 rx_table_id, void *ctx)
{
- vlib_main_t * vm = ctx;
+ vlib_main_t *vm = ctx;
- if (vss->vss_type == VSS_TYPE_VPN_ID)
- {
- u32 oui = ((u32) vss->vpn_id[0] << 16) + ((u32) vss->vpn_id[1] << 8)
- + ((u32) vss->vpn_id[2]);
- u32 fib_id = ((u32) vss->vpn_id[3] << 24) + ((u32) vss->vpn_id[4] << 16)
- + ((u32) vss->vpn_id[5] << 8) + ((u32) vss->vpn_id[6]);
- vlib_cli_output (vm, " fib_table: %d oui: %d vpn_index: %d",
- rx_table_id, oui, fib_id);
- }
- else if (vss->vss_type == VSS_TYPE_ASCII)
- vlib_cli_output (vm, " fib_table: %d vpn_id: %s",
- rx_table_id, vss->vpn_ascii_id);
- else
- vlib_cli_output (vm, " fib_table: %d default global vpn", rx_table_id);
+ if (vss->vss_type == VSS_TYPE_VPN_ID)
+ {
+ u32 oui = ((u32) vss->vpn_id[0] << 16) + ((u32) vss->vpn_id[1] << 8)
+ + ((u32) vss->vpn_id[2]);
+ u32 fib_id = ((u32) vss->vpn_id[3] << 24) + ((u32) vss->vpn_id[4] << 16)
+ + ((u32) vss->vpn_id[5] << 8) + ((u32) vss->vpn_id[6]);
+ vlib_cli_output (vm, " fib_table: %d oui: %d vpn_index: %d",
+ rx_table_id, oui, fib_id);
+ }
+ else if (vss->vss_type == VSS_TYPE_ASCII)
+ vlib_cli_output (vm, " fib_table: %d vpn_id: %s",
+ rx_table_id, vss->vpn_ascii_id);
+ else
+ vlib_cli_output (vm, " fib_table: %d default global vpn", rx_table_id);
- return (1);
+ return (1);
}
-void update_vss (dhcp_vss_t *v,
- u8 vss_type,
- u8 *vpn_ascii_id,
- u32 oui,
- u32 vpn_index)
+void
+update_vss (dhcp_vss_t * v,
+ u8 vss_type, u8 * vpn_ascii_id, u32 oui, u32 vpn_index)
{
v->vss_type = vss_type;
if (v->vpn_ascii_id)
{
- if (v->vpn_ascii_id == (u8 *) ~0)
+ if (v->vpn_ascii_id == (u8 *) ~ 0)
v->vpn_ascii_id = 0;
else
vec_free (v->vpn_ascii_id);
}
if (vss_type == VSS_TYPE_ASCII)
- v->vpn_ascii_id = vpn_ascii_id;
+ v->vpn_ascii_id = vpn_ascii_id;
else if (vss_type == VSS_TYPE_VPN_ID)
{
v->vpn_id[0] = (oui >> 16) & 0xff;
}
}
-int dhcp_proxy_set_vss (fib_protocol_t proto,
- u32 tbl_id,
- u8 vss_type,
- u8 *vpn_ascii_id,
- u32 oui,
- u32 vpn_index,
- u8 is_del)
+int
+dhcp_proxy_set_vss (fib_protocol_t proto,
+ u32 tbl_id,
+ u8 vss_type,
+ u8 * vpn_ascii_id, u32 oui, u32 vpn_index, u8 is_del)
{
dhcp_proxy_main_t *dm = &dhcp_proxy_main;
dhcp_vss_t *v = NULL;
- u32 rx_fib_index;
+ u32 rx_fib_index;
int rc = 0;
-
+
if (proto == FIB_PROTOCOL_IP4)
- rx_fib_index = fib_table_find_or_create_and_lock(proto, tbl_id,
- FIB_SOURCE_DHCP);
+ rx_fib_index = fib_table_find_or_create_and_lock (proto, tbl_id,
+ FIB_SOURCE_DHCP);
else
- rx_fib_index = mfib_table_find_or_create_and_lock(proto, tbl_id,
- MFIB_SOURCE_DHCP);
- v = dhcp_get_vss_info(dm, rx_fib_index, proto);
+ rx_fib_index = mfib_table_find_or_create_and_lock (proto, tbl_id,
+ MFIB_SOURCE_DHCP);
+ v = dhcp_get_vss_info (dm, rx_fib_index, proto);
if (NULL != v)
{
if (is_del)
- {
- /* release the lock held on the table when the VSS
- * info was created */
- dhcp_proxy_rx_table_unlock (proto, rx_fib_index);
+ {
+ /* release the lock held on the table when the VSS
+ * info was created */
+ dhcp_proxy_rx_table_unlock (proto, rx_fib_index);
vec_free (v->vpn_ascii_id);
- pool_put (dm->vss[proto], v);
- dm->vss_index_by_rx_fib_index[proto][rx_fib_index] = ~0;
- }
+ pool_put (dm->vss[proto], v);
+ dm->vss_index_by_rx_fib_index[proto][rx_fib_index] = ~0;
+ }
else
- {
+ {
update_vss (v, vss_type, vpn_ascii_id, oui, vpn_index);
- }
+ }
}
else
{
if (is_del)
- rc = VNET_API_ERROR_NO_SUCH_ENTRY;
+ rc = VNET_API_ERROR_NO_SUCH_ENTRY;
else
- {
- /* create a new entry */
- vec_validate_init_empty(dm->vss_index_by_rx_fib_index[proto],
- rx_fib_index, ~0);
+ {
+ /* create a new entry */
+ vec_validate_init_empty (dm->vss_index_by_rx_fib_index[proto],
+ rx_fib_index, ~0);
- /* hold a lock on the table whilst the VSS info exist */
- pool_get (dm->vss[proto], v);
+ /* hold a lock on the table whilst the VSS info exist */
+ pool_get (dm->vss[proto], v);
update_vss (v, vss_type, vpn_ascii_id, oui, vpn_index);
- dm->vss_index_by_rx_fib_index[proto][rx_fib_index] =
- v - dm->vss[proto];
- dhcp_proxy_rx_table_lock (proto, rx_fib_index);
- }
+ dm->vss_index_by_rx_fib_index[proto][rx_fib_index] =
+ v - dm->vss[proto];
+ dhcp_proxy_rx_table_lock (proto, rx_fib_index);
+ }
}
/* Release the lock taken during the create_or_lock at the start */
return (rc);
}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
#include <vnet/ip/format.h>
#include <vnet/udp/udp.h>
-typedef enum {
+typedef enum
+{
#define dhcp_proxy_error(n,s) DHCP_PROXY_ERROR_##n,
#include <vnet/dhcp/dhcp4_proxy_error.def>
#undef dhcp_proxy_error
DHCP_PROXY_N_ERROR,
} dhcp_proxy_error_t;
-typedef enum {
+typedef enum
+{
#define dhcpv6_proxy_error(n,s) DHCPV6_PROXY_ERROR_##n,
#include <vnet/dhcp/dhcp6_proxy_error.def>
#undef dhcpv6_proxy_error
/**
* @brief The Virtual Sub-net Selection information for a given RX FIB
*/
-typedef struct dhcp_vss_t_ {
+typedef struct dhcp_vss_t_
+{
/**
* @brief VSS type as defined in RFC 6607:
* 0 for NVT ASCII VPN Identifier
* 1 for RFC 2685 VPN-ID of 7 octects - 3 bytes OUI & 4 bytes VPN index
* 255 for global default VPN
*/
- u8 vss_type;
+ u8 vss_type;
#define VSS_TYPE_ASCII 0
#define VSS_TYPE_VPN_ID 1
#define VSS_TYPE_INVALID 123
/**
* @brief Type 1 VPN-ID
*/
- u8 vpn_id[7];
+ u8 vpn_id[7];
/**
* @brief Type 0 ASCII VPN Identifier
*/
- u8 *vpn_ascii_id;
+ u8 *vpn_ascii_id;
} dhcp_vss_t;
/**
* @brief The address of the DHCP server to which to relay the client's
* messages
*/
- ip46_address_t dhcp_server;
+ ip46_address_t dhcp_server;
/**
* @brief The FIB index (not the external Table-ID) in which the server
* is reachable.
*/
- u32 server_fib_index;
+ u32 server_fib_index;
} dhcp_server_t;
/**
* @brief A DHCP proxy represenation fpr per-client VRF config
*/
-typedef struct dhcp_proxy_t_ {
+typedef struct dhcp_proxy_t_
+{
/**
* @brief The set of DHCP servers to which messages are relayed.
* If multiple servers are configured then discover/solict messages
* cookie.
* The expectation is there are only 1 or 2 servers, hence no fancy DB.
*/
- dhcp_server_t *dhcp_servers;
+ dhcp_server_t *dhcp_servers;
/**
* @brief Hash table of pending requets key'd on the clients MAC address
*/
- uword *dhcp_pending;
+ uword *dhcp_pending;
/**
* @brief A lock for the pending request DB.
*/
- int lock;
+ int lock;
/**
* @brief The source address to use in relayed messaes
*/
- ip46_address_t dhcp_src_address;
+ ip46_address_t dhcp_src_address;
/**
* @brief The FIB index (not the external Table-ID) in which the client
* is resides.
*/
- u32 rx_fib_index;
+ u32 rx_fib_index;
} dhcp_proxy_t;
#define DHCP_N_PROTOS (FIB_PROTOCOL_IP6 + 1)
/**
* @brief Collection of global DHCP proxy data
*/
-typedef struct {
+typedef struct
+{
/* Pool of DHCP servers */
dhcp_proxy_t *dhcp_servers[DHCP_N_PROTOS];
/* Pool of selected DHCP server. Zero is the default server */
- u32 * dhcp_server_index_by_rx_fib_index[DHCP_N_PROTOS];
+ u32 *dhcp_server_index_by_rx_fib_index[DHCP_N_PROTOS];
/* to drop pkts in server-to-client direction */
u32 error_drop_node_index;
* @brief Send the details of a proxy session to the API client during a dump
*/
void dhcp_send_details (fib_protocol_t proto,
- void *opaque,
- u32 context,
- dhcp_proxy_t *proxy);
+ void *opaque, u32 context, dhcp_proxy_t * proxy);
/**
* @brief Show (on CLI) a VSS config during a show walk
*/
-int dhcp_vss_show_walk (dhcp_vss_t *vss,
- u32 rx_table_id,
- void *ctx);
+int dhcp_vss_show_walk (dhcp_vss_t * vss, u32 rx_table_id, void *ctx);
/**
* @brief Configure/set a new VSS info
*/
int dhcp_proxy_set_vss (fib_protocol_t proto,
- u32 tbl_id,
+ u32 tbl_id,
u8 vss_type,
- u8 *vpn_ascii_id,
- u32 oui,
- u32 vpn_index,
- u8 is_del);
+ u8 * vpn_ascii_id, u32 oui, u32 vpn_index, u8 is_del);
/**
* @brief Dump the proxy configs to the API
*/
-void dhcp_proxy_dump(fib_protocol_t proto,
- void *opaque,
- u32 context);
+void dhcp_proxy_dump (fib_protocol_t proto, void *opaque, u32 context);
/**
* @brief Add a new DHCP proxy server configuration.
* @return 1 is the config is new,
* 0 otherwise (implying a modify of an existing)
*/
-int dhcp_proxy_server_add(fib_protocol_t proto,
- ip46_address_t *addr,
- ip46_address_t *src_address,
- u32 rx_fib_iindex,
- u32 server_table_id);
+int dhcp_proxy_server_add (fib_protocol_t proto,
+ ip46_address_t * addr,
+ ip46_address_t * src_address,
+ u32 rx_fib_iindex, u32 server_table_id);
/**
* @brief Delete a DHCP proxy config
* @return 1 if the proxy is deleted, 0 otherwise
*/
-int dhcp_proxy_server_del(fib_protocol_t proto,
- u32 rx_fib_index,
- ip46_address_t *addr,
- u32 server_table_id);
+int dhcp_proxy_server_del (fib_protocol_t proto,
+ u32 rx_fib_index,
+ ip46_address_t * addr, u32 server_table_id);
-u32
-dhcp_proxy_rx_table_get_table_id (fib_protocol_t proto,
- u32 fib_index);
+u32 dhcp_proxy_rx_table_get_table_id (fib_protocol_t proto, u32 fib_index);
/**
* @brief Callback function invoked for each DHCP proxy entry
* return 0 to break the walk, non-zero otherwise.
*/
-typedef int (*dhcp_proxy_walk_fn_t)(dhcp_proxy_t *server,
- void *ctx);
+typedef int (*dhcp_proxy_walk_fn_t) (dhcp_proxy_t * server, void *ctx);
/**
* @brief Walk/Visit each DHCP proxy server
*/
-void dhcp_proxy_walk(fib_protocol_t proto,
- dhcp_proxy_walk_fn_t fn,
- void *ctx);
+void dhcp_proxy_walk (fib_protocol_t proto,
+ dhcp_proxy_walk_fn_t fn, void *ctx);
/**
* @brief Callback function invoked for each DHCP VSS entry
* return 0 to break the walk, non-zero otherwise.
*/
-typedef int (*dhcp_vss_walk_fn_t)(dhcp_vss_t *server,
- u32 rx_table_id,
- void *ctx);
+typedef int (*dhcp_vss_walk_fn_t) (dhcp_vss_t * server,
+ u32 rx_table_id, void *ctx);
/**
* @brief Walk/Visit each DHCP proxy VSS
*/
-void dhcp_vss_walk(fib_protocol_t proto,
- dhcp_vss_walk_fn_t fn,
- void *ctx);
+void dhcp_vss_walk (fib_protocol_t proto, dhcp_vss_walk_fn_t fn, void *ctx);
/**
* @brief Lock a proxy object to prevent simultaneous access of its
* pending store
*/
-void dhcp_proxy_lock (dhcp_proxy_t *server);
+void dhcp_proxy_lock (dhcp_proxy_t * server);
/**
* @brief Lock a proxy object to prevent simultaneous access of its
* pending store
*/
-void dhcp_proxy_unlock (dhcp_proxy_t *server);
+void dhcp_proxy_unlock (dhcp_proxy_t * server);
/**
* @brief Get the VSS data for the FIB index
*/
static inline dhcp_vss_t *
-dhcp_get_vss_info (dhcp_proxy_main_t *dm,
- u32 rx_fib_index,
- fib_protocol_t proto)
+dhcp_get_vss_info (dhcp_proxy_main_t * dm,
+ u32 rx_fib_index, fib_protocol_t proto)
{
dhcp_vss_t *v = NULL;
- if (vec_len(dm->vss_index_by_rx_fib_index[proto]) > rx_fib_index &&
+ if (vec_len (dm->vss_index_by_rx_fib_index[proto]) > rx_fib_index &&
dm->vss_index_by_rx_fib_index[proto][rx_fib_index] != ~0)
- {
- v = pool_elt_at_index (
- dm->vss[proto],
- dm->vss_index_by_rx_fib_index[proto][rx_fib_index]);
- }
+ {
+ v = pool_elt_at_index (dm->vss[proto],
+ dm->vss_index_by_rx_fib_index[proto]
+ [rx_fib_index]);
+ }
return (v);
}
* @brief Get the DHCP proxy server data for the FIB index
*/
static inline dhcp_proxy_t *
-dhcp_get_proxy (dhcp_proxy_main_t *dm,
- u32 rx_fib_index,
- fib_protocol_t proto)
+dhcp_get_proxy (dhcp_proxy_main_t * dm,
+ u32 rx_fib_index, fib_protocol_t proto)
{
dhcp_proxy_t *s = NULL;
- if (vec_len(dm->dhcp_server_index_by_rx_fib_index[proto]) > rx_fib_index &&
+ if (vec_len (dm->dhcp_server_index_by_rx_fib_index[proto]) > rx_fib_index &&
dm->dhcp_server_index_by_rx_fib_index[proto][rx_fib_index] != ~0)
- {
- s = pool_elt_at_index (
- dm->dhcp_servers[proto],
- dm->dhcp_server_index_by_rx_fib_index[proto][rx_fib_index]);
- }
+ {
+ s = pool_elt_at_index (dm->dhcp_servers[proto],
+ dm->dhcp_server_index_by_rx_fib_index[proto]
+ [rx_fib_index]);
+ }
return (s);
}
-int dhcp6_proxy_set_server (ip46_address_t *addr,
- ip46_address_t *src_addr,
- u32 rx_table_id,
- u32 server_table_id,
- int is_del);
-int dhcp4_proxy_set_server (ip46_address_t *addr,
- ip46_address_t *src_addr,
- u32 rx_table_id,
- u32 server_table_id,
- int is_del);
+int dhcp6_proxy_set_server (ip46_address_t * addr,
+ ip46_address_t * src_addr,
+ u32 rx_table_id, u32 server_table_id, int is_del);
+int dhcp4_proxy_set_server (ip46_address_t * addr,
+ ip46_address_t * src_addr,
+ u32 rx_table_id, u32 server_table_id, int is_del);
#endif /* included_dhcp_proxy_h */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / commitdiff