#include <vlib/buffer.h>
#include <vnet/ip/format.h>
#include <vnet/ethernet/packet.h>
+#include <vnet/udp/udp_local.h>
#include <vnet/udp/udp_packet.h>
-#include <vnet/udp/udp.h>
#include <vnet/ip/lookup.h>
#include <vnet/ip/icmp46_packet.h>
#include <vnet/ip/ip4.h>
#include <vnet/ip/ip6.h>
#include <vnet/ip/ip6_packet.h>
+#include <vnet/ip/ip6_link.h>
#include <vnet/adj/adj.h>
#include <vnet/adj/adj_nbr.h>
#include <vnet/dpo/receive_dpo.h>
u32 ip4_rewrite_idx;
/* node index of "ip6-rewrite" node */
u32 ip6_rewrite_idx;
+ /* node index of "ip4-midchain" node */
+ u32 ip4_midchain_idx;
+ /* node index of "ip6-midchain" node */
+ u32 ip6_midchain_idx;
/* log class */
vlib_log_class_t log_class;
+ /* number of active udp4 sessions */
+ u32 udp4_sessions_count;
+ /* number of active udp6 sessions */
+ u32 udp6_sessions_count;
} bfd_udp_main_t;
static vlib_node_registration_t bfd_udp4_input_node;
bfd_udp_set_echo_source (u32 sw_if_index)
{
vnet_sw_interface_t *sw_if =
- vnet_get_sw_interface_safe (bfd_udp_main.vnet_main, sw_if_index);
+ vnet_get_sw_interface_or_null (bfd_udp_main.vnet_main, sw_if_index);
if (sw_if)
{
bfd_udp_main.echo_source_sw_if_index = sw_if_index;
* pick an unused address from that subnet
*/
vnet_sw_interface_t *sw_if =
- vnet_get_sw_interface_safe (bfd_udp_main.vnet_main,
- bfd_udp_main.echo_source_sw_if_index);
+ vnet_get_sw_interface_or_null (bfd_udp_main.vnet_main,
+ bfd_udp_main.echo_source_sw_if_index);
if (sw_if && sw_if->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
{
if (BFD_TRANSPORT_UDP4 == transport)
{
return rv;
}
- clib_memcpy (&headers->ip6.dst_address, &key->local_addr.ip6,
- sizeof (headers->ip6.dst_address));
+ clib_memcpy_fast (&headers->ip6.dst_address, &key->local_addr.ip6,
+ sizeof (headers->ip6.dst_address));
headers->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_bfd_echo6);
}
else
{
- clib_memcpy (&headers->ip6.src_address, &key->local_addr.ip6,
- sizeof (headers->ip6.src_address));
- clib_memcpy (&headers->ip6.dst_address, &key->peer_addr.ip6,
- sizeof (headers->ip6.dst_address));
+ clib_memcpy_fast (&headers->ip6.src_address, &key->local_addr.ip6,
+ sizeof (headers->ip6.src_address));
+ clib_memcpy_fast (&headers->ip6.dst_address, &key->peer_addr.ip6,
+ sizeof (headers->ip6.dst_address));
headers->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_bfd6);
}
int
bfd_udp_calc_next_node (const struct bfd_session_s *bs, u32 * next_node)
{
+ vnet_main_t *vnm = vnet_get_main ();
const bfd_udp_session_t *bus = &bs->udp;
ip_adjacency_t *adj = adj_get (bus->adj_index);
+
+ /* don't try to send the buffer if the interface is not up */
+ if (!vnet_sw_interface_is_up (vnm, bus->key.sw_if_index))
+ return 0;
+
switch (adj->lookup_next_index)
{
case IP_LOOKUP_NEXT_ARP:
return 1;
}
break;
+ case IP_LOOKUP_NEXT_MIDCHAIN:
+ switch (bs->transport)
+ {
+ case BFD_TRANSPORT_UDP4:
+ *next_node = bfd_udp_main.ip4_midchain_idx;
+ return 1;
+ case BFD_TRANSPORT_UDP6:
+ *next_node = bfd_udp_main.ip6_midchain_idx;
+ return 1;
+ }
+ break;
default:
/* drop */
break;
}
static vnet_api_error_t
-bfd_udp_add_session_internal (bfd_udp_main_t * bum, u32 sw_if_index,
- u32 desired_min_tx_usec,
+bfd_udp_add_session_internal (vlib_main_t * vm, bfd_udp_main_t * bum,
+ u32 sw_if_index, u32 desired_min_tx_usec,
u32 required_min_rx_usec, u8 detect_mult,
const ip46_address_t * local_addr,
const ip46_address_t * peer_addr,
BFD_DBG ("adj_nbr_add_or_lock(FIB_PROTOCOL_IP4, VNET_LINK_IP4, %U, %d) "
"returns %d", format_ip46_address, &key->peer_addr,
IP46_TYPE_ANY, key->sw_if_index, bus->adj_index);
+ ++bum->udp4_sessions_count;
+ if (1 == bum->udp4_sessions_count)
+ {
+ udp_register_dst_port (vm, UDP_DST_PORT_bfd4,
+ bfd_udp4_input_node.index, 1);
+ udp_register_dst_port (vm, UDP_DST_PORT_bfd_echo4,
+ bfd_udp_echo4_input_node.index, 1);
+ }
}
else
{
BFD_DBG ("adj_nbr_add_or_lock(FIB_PROTOCOL_IP6, VNET_LINK_IP6, %U, %d) "
"returns %d", format_ip46_address, &key->peer_addr,
IP46_TYPE_ANY, key->sw_if_index, bus->adj_index);
+ ++bum->udp6_sessions_count;
+ if (1 == bum->udp6_sessions_count)
+ {
+ udp_register_dst_port (vm, UDP_DST_PORT_bfd6,
+ bfd_udp6_input_node.index, 0);
+ udp_register_dst_port (vm, UDP_DST_PORT_bfd_echo6,
+ bfd_udp_echo6_input_node.index, 0);
+ }
}
*bs_out = bs;
return bfd_session_set_params (bum->bfd_main, bs, desired_min_tx_usec,
{
bfd_udp_main_t *bum = &bfd_udp_main;
vnet_sw_interface_t *sw_if =
- vnet_get_sw_interface_safe (bfd_udp_main.vnet_main, sw_if_index);
+ vnet_get_sw_interface_or_null (bfd_udp_main.vnet_main, sw_if_index);
u8 local_ip_valid = 0;
ip_interface_address_t *ia = NULL;
if (!sw_if)
"IP family mismatch (local is ipv6, peer is ipv4)");
return VNET_API_ERROR_INVALID_ARGUMENT;
}
- ip6_main_t *im = &ip6_main;
- /* *INDENT-OFF* */
- foreach_ip_interface_address (
- &im->lookup_main, ia, sw_if_index, 0 /* honor unnumbered */, ({
- ip6_address_t *x =
- ip_interface_address_get_address (&im->lookup_main, ia);
- if (local_addr->ip6.as_u64[0] == x->as_u64[0] &&
- local_addr->ip6.as_u64[1] == x->as_u64[1])
- {
- /* valid address for this interface */
- local_ip_valid = 1;
- break;
- }
- }));
- /* *INDENT-ON* */
+
+ if (ip6_address_is_link_local_unicast (&local_addr->ip6))
+ {
+ const ip6_address_t *ll_addr;
+ ll_addr = ip6_get_link_local_address (sw_if_index);
+ if (ll_addr && ip6_address_is_equal (ll_addr, &local_addr->ip6))
+ {
+ /* valid address for this interface */
+ local_ip_valid = 1;
+ }
+ }
+ else
+ {
+ ip6_main_t *im = &ip6_main;
+ /* *INDENT-OFF* */
+ foreach_ip_interface_address (
+ &im->lookup_main, ia, sw_if_index, 0 /* honor unnumbered */, ({
+ ip6_address_t *x =
+ ip_interface_address_get_address (&im->lookup_main, ia);
+ if (local_addr->ip6.as_u64[0] == x->as_u64[0] &&
+ local_addr->ip6.as_u64[1] == x->as_u64[1])
+ {
+ /* valid address for this interface */
+ local_ip_valid = 1;
+ break;
+ }
+ }));
+ /* *INDENT-ON* */
+ }
}
if (!local_ip_valid)
static vnet_api_error_t
bfd_api_verify_common (u32 sw_if_index, u32 desired_min_tx_usec,
- u32 required_min_rx_usec, u8 detect_mult,
- const ip46_address_t * local_addr,
- const ip46_address_t * peer_addr)
+ u8 detect_mult, const ip46_address_t *local_addr,
+ const ip46_address_t *peer_addr)
{
bfd_udp_main_t *bum = &bfd_udp_main;
vnet_api_error_t rv =
}
static void
-bfd_udp_del_session_internal (bfd_session_t * bs)
+bfd_udp_del_session_internal (vlib_main_t * vm, bfd_session_t * bs)
{
bfd_udp_main_t *bum = &bfd_udp_main;
BFD_DBG ("free bfd-udp session, bs_idx=%d", bs->bs_idx);
mhash_unset (&bum->bfd_session_idx_by_bfd_key, &bs->udp.key, NULL);
adj_unlock (bs->udp.adj_index);
+ switch (bs->transport)
+ {
+ case BFD_TRANSPORT_UDP4:
+ --bum->udp4_sessions_count;
+ if (!bum->udp4_sessions_count)
+ {
+ udp_unregister_dst_port (vm, UDP_DST_PORT_bfd4, 1);
+ udp_unregister_dst_port (vm, UDP_DST_PORT_bfd_echo4, 1);
+ }
+ break;
+ case BFD_TRANSPORT_UDP6:
+ --bum->udp6_sessions_count;
+ if (!bum->udp6_sessions_count)
+ {
+ udp_unregister_dst_port (vm, UDP_DST_PORT_bfd6, 0);
+ udp_unregister_dst_port (vm, UDP_DST_PORT_bfd_echo6, 0);
+ }
+ break;
+ }
bfd_put_session (bum->bfd_main, bs);
}
+static vnet_api_error_t
+bfd_udp_add_and_start_session (u32 sw_if_index,
+ const ip46_address_t *local_addr,
+ const ip46_address_t *peer_addr,
+ u32 desired_min_tx_usec,
+ u32 required_min_rx_usec, u8 detect_mult,
+ u8 is_authenticated, u32 conf_key_id,
+ u8 bfd_key_id)
+{
+ bfd_session_t *bs = NULL;
+ vnet_api_error_t rv;
+
+ rv = bfd_udp_add_session_internal (
+ vlib_get_main (), &bfd_udp_main, sw_if_index, desired_min_tx_usec,
+ required_min_rx_usec, detect_mult, local_addr, peer_addr, &bs);
+
+ if (!rv && is_authenticated)
+ {
+ rv = bfd_auth_activate (bs, conf_key_id, bfd_key_id,
+ 0 /* is not delayed */);
+ if (rv)
+ {
+ bfd_udp_del_session_internal (vlib_get_main (), bs);
+ }
+ }
+ if (!rv)
+ {
+ bfd_session_start (bfd_udp_main.bfd_main, bs);
+ }
+
+ return rv;
+}
+
vnet_api_error_t
bfd_udp_add_session (u32 sw_if_index, const ip46_address_t * local_addr,
const ip46_address_t * peer_addr,
bfd_main_t *bm = &bfd_main;
bfd_lock (bm);
- vnet_api_error_t rv =
- bfd_api_verify_common (sw_if_index, desired_min_tx_usec,
- required_min_rx_usec, detect_mult,
- local_addr, peer_addr);
- bfd_session_t *bs = NULL;
+ vnet_api_error_t rv = bfd_api_verify_common (
+ sw_if_index, desired_min_tx_usec, detect_mult, local_addr, peer_addr);
+
if (!rv)
- {
- rv =
- bfd_udp_add_session_internal (&bfd_udp_main, sw_if_index,
- desired_min_tx_usec,
- required_min_rx_usec, detect_mult,
- local_addr, peer_addr, &bs);
- }
- if (!rv && is_authenticated)
- {
-#if WITH_LIBSSL > 0
- rv = bfd_auth_activate (bs, conf_key_id, bfd_key_id,
- 0 /* is not delayed */ );
-#else
- vlib_log_err (bfd_udp_main.log_class,
- "SSL missing, cannot add authenticated BFD session");
- rv = VNET_API_ERROR_BFD_NOTSUPP;
-#endif
- if (rv)
- {
- bfd_udp_del_session_internal (bs);
- }
- }
+ rv = bfd_udp_add_and_start_session (
+ sw_if_index, local_addr, peer_addr, desired_min_tx_usec,
+ required_min_rx_usec, detect_mult, is_authenticated, conf_key_id,
+ bfd_key_id);
+
+ bfd_unlock (bm);
+ return rv;
+}
+
+vnet_api_error_t
+bfd_udp_upd_session (u32 sw_if_index, const ip46_address_t *local_addr,
+ const ip46_address_t *peer_addr, u32 desired_min_tx_usec,
+ u32 required_min_rx_usec, u8 detect_mult,
+ u8 is_authenticated, u32 conf_key_id, u8 bfd_key_id)
+{
+ bfd_main_t *bm = &bfd_main;
+ bfd_lock (bm);
+
+ vnet_api_error_t rv = bfd_api_verify_common (
+ sw_if_index, desired_min_tx_usec, detect_mult, local_addr, peer_addr);
if (!rv)
{
- bfd_session_start (bfd_udp_main.bfd_main, bs);
+ bfd_session_t *bs = NULL;
+
+ rv = bfd_udp_find_session_by_api_input (sw_if_index, local_addr,
+ peer_addr, &bs);
+ if (VNET_API_ERROR_BFD_ENOENT == rv)
+ rv = bfd_udp_add_and_start_session (
+ sw_if_index, local_addr, peer_addr, desired_min_tx_usec,
+ required_min_rx_usec, detect_mult, is_authenticated, conf_key_id,
+ bfd_key_id);
+ else
+ rv = bfd_session_set_params (bfd_udp_main.bfd_main, bs,
+ desired_min_tx_usec, required_min_rx_usec,
+ detect_mult);
}
bfd_unlock (bm);
}
vnet_api_error_t
-bfd_udp_mod_session (u32 sw_if_index,
- const ip46_address_t * local_addr,
- const ip46_address_t * peer_addr,
- u32 desired_min_tx_usec,
+bfd_udp_mod_session (u32 sw_if_index, const ip46_address_t *local_addr,
+ const ip46_address_t *peer_addr, u32 desired_min_tx_usec,
u32 required_min_rx_usec, u8 detect_mult)
{
bfd_session_t *bs = NULL;
bfd_unlock (bm);
return rv;
}
- bfd_udp_del_session_internal (bs);
+ bfd_udp_del_session_internal (vlib_get_main (), bs);
bfd_unlock (bm);
return 0;
}
vnet_api_error_t
-bfd_udp_session_set_flags (u32 sw_if_index,
+bfd_udp_session_set_flags (vlib_main_t * vm, u32 sw_if_index,
const ip46_address_t * local_addr,
const ip46_address_t * peer_addr, u8 admin_up_down)
{
bfd_unlock (bm);
return rv;
}
- bfd_session_set_flags (bs, admin_up_down);
+ bfd_session_set_flags (vm, bs, admin_up_down);
bfd_unlock (bm);
return 0;
}
bfd_lock (bm);
vnet_api_error_t error;
-#if WITH_LIBSSL > 0
bfd_session_t *bs = NULL;
vnet_api_error_t rv =
bfd_udp_find_session_by_api_input (sw_if_index, local_addr, peer_addr,
error = bfd_auth_activate (bs, conf_key_id, key_id, is_delayed);
bfd_unlock (bm);
return error;
-#else
- vlib_log_err (bfd_udp_main->log_class,
- "SSL missing, cannot activate BFD authentication");
- bfd_unlock (bm);
- return VNET_API_ERROR_BFD_NOTSUPP;
-#endif
}
vnet_api_error_t
BFD_UDP_INPUT_NEXT_NORMAL,
BFD_UDP_INPUT_NEXT_REPLY_ARP,
BFD_UDP_INPUT_NEXT_REPLY_REWRITE,
+ BFD_UDP_INPUT_NEXT_REPLY_MIDCHAIN,
BFD_UDP_INPUT_N_NEXT,
} bfd_udp_input_next_t;
BFD_UDP_N_ERROR,
} bfd_udp_error_t;
+typedef enum
+{
+ BFD_UDP_ECHO_INPUT_NEXT_NORMAL,
+ BFD_UDP_ECHO_INPUT_NEXT_REPLY_ARP,
+ BFD_UDP_ECHO_INPUT_NEXT_REPLY_REWRITE,
+ BFD_UDP_ECHO_INPUT_N_NEXT,
+} bfd_udp_echo_input_next_t;
+
/* Packet counters - BFD ECHO packets */
#define foreach_bfd_udp_echo_error(F) \
F (NONE, "good bfd echo packets (processed)") \
{
/* sanity check first */
const i32 start = vnet_buffer (b)->l3_hdr_offset;
- if (start < 0 && start < sizeof (b->pre_data))
+ if (start < -(signed) sizeof (b->pre_data))
{
BFD_ERR ("Start of ip header is before pre_data, ignoring");
*ip4 = NULL;
} bfd_rpc_update_t;
static void
-bfd_rpc_update_session (u32 bs_idx, const bfd_pkt_t * pkt)
+bfd_rpc_update_session (vlib_main_t * vm, u32 bs_idx, const bfd_pkt_t * pkt)
{
bfd_main_t *bm = &bfd_main;
bfd_lock (bm);
- bfd_consume_pkt (bm, pkt, bs_idx);
+ bfd_consume_pkt (vm, bm, pkt, bs_idx);
bfd_unlock (bm);
}
static bfd_udp_error_t
-bfd_udp4_scan (vlib_main_t * vm, vlib_node_runtime_t * rt,
- vlib_buffer_t * b, bfd_session_t ** bs_out)
+bfd_udp4_scan (vlib_main_t *vm, vlib_buffer_t *b, bfd_session_t **bs_out)
{
const bfd_pkt_t *pkt = vlib_buffer_get_current (b);
if (sizeof (*pkt) > b->current_length)
return BFD_UDP_ERROR_BAD;
}
BFD_DBG ("BFD session found, bs_idx=%u", bs->bs_idx);
- if (!bfd_verify_pkt_auth (pkt, b->current_length, bs))
+ if (!bfd_verify_pkt_auth (vm, pkt, b->current_length, bs))
{
BFD_ERR ("Packet verification failed, dropping packet");
return BFD_UDP_ERROR_BAD;
{
return err;
}
- bfd_rpc_update_session (bs->bs_idx, pkt);
+ bfd_rpc_update_session (vm, bs->bs_idx, pkt);
*bs_out = bs;
return BFD_UDP_ERROR_NONE;
}
{
/* sanity check first */
const i32 start = vnet_buffer (b)->l3_hdr_offset;
- if (start < 0 && start < sizeof (b->pre_data))
+ if (start < -(signed) sizeof (b->pre_data))
{
BFD_ERR ("Start of ip header is before pre_data, ignoring");
*ip6 = NULL;
}
static bfd_udp_error_t
-bfd_udp6_scan (vlib_main_t * vm, vlib_node_runtime_t * rt,
- vlib_buffer_t * b, bfd_session_t ** bs_out)
+bfd_udp6_scan (vlib_main_t *vm, vlib_buffer_t *b, bfd_session_t **bs_out)
{
const bfd_pkt_t *pkt = vlib_buffer_get_current (b);
if (sizeof (*pkt) > b->current_length)
return BFD_UDP_ERROR_BAD;
}
BFD_DBG ("BFD session found, bs_idx=%u", bs->bs_idx);
- if (!bfd_verify_pkt_auth (pkt, b->current_length, bs))
+ if (!bfd_verify_pkt_auth (vm, pkt, b->current_length, bs))
{
BFD_ERR ("Packet verification failed, dropping packet");
return BFD_UDP_ERROR_BAD;
{
return err;
}
- bfd_rpc_update_session (bs->bs_idx, pkt);
+ bfd_rpc_update_session (vm, bs->bs_idx, pkt);
*bs_out = bs;
return BFD_UDP_ERROR_NONE;
}
/* If this pkt is traced, snapshot the data */
if (b0->flags & VLIB_BUFFER_IS_TRACED)
{
- int len;
+ u64 len;
t0 = vlib_add_trace (vm, rt, b0, sizeof (*t0));
len = (b0->current_length < sizeof (t0->data)) ? b0->current_length
: sizeof (t0->data);
t0->len = len;
- clib_memcpy (t0->data, vlib_buffer_get_current (b0), len);
+ clib_memcpy_fast (t0->data, vlib_buffer_get_current (b0), len);
}
/* scan this bfd pkt. error0 is the counter index to bmp */
bfd_lock (bm);
if (is_ipv6)
{
- error0 = bfd_udp6_scan (vm, rt, b0, &bs);
+ error0 = bfd_udp6_scan (vm, b0, &bs);
}
else
{
- error0 = bfd_udp4_scan (vm, rt, b0, &bs);
+ error0 = bfd_udp4_scan (vm, b0, &bs);
}
b0->error = rt->errors[error0];
{
b0->current_data = 0;
b0->current_length = 0;
- clib_memset (vnet_buffer (b0), 0, sizeof (*vnet_buffer (b0)));
- bfd_init_final_control_frame (vm, b0, bfd_udp_main.bfd_main, bs,
- 0);
+ bfd_init_final_control_frame (vm, b0, bs);
if (is_ipv6)
{
vlib_node_increment_counter (vm, bfd_udp6_input_node.index,
case IP_LOOKUP_NEXT_REWRITE:
next0 = BFD_UDP_INPUT_NEXT_REPLY_REWRITE;
break;
+ case IP_LOOKUP_NEXT_MIDCHAIN:
+ next0 = BFD_UDP_INPUT_NEXT_REPLY_MIDCHAIN;
+ break;
default:
/* drop */
break;
[BFD_UDP_INPUT_NEXT_NORMAL] = "error-drop",
[BFD_UDP_INPUT_NEXT_REPLY_ARP] = "ip4-arp",
[BFD_UDP_INPUT_NEXT_REPLY_REWRITE] = "ip4-lookup",
+ [BFD_UDP_INPUT_NEXT_REPLY_MIDCHAIN] = "ip4-midchain",
},
};
/* *INDENT-ON* */
[BFD_UDP_INPUT_NEXT_NORMAL] = "error-drop",
[BFD_UDP_INPUT_NEXT_REPLY_ARP] = "ip6-discover-neighbor",
[BFD_UDP_INPUT_NEXT_REPLY_REWRITE] = "ip6-lookup",
+ [BFD_UDP_INPUT_NEXT_REPLY_MIDCHAIN] = "ip6-midchain",
},
};
/* *INDENT-ON* */
/* If this pkt is traced, snapshot the data */
if (b0->flags & VLIB_BUFFER_IS_TRACED)
{
- int len;
+ u64 len;
t0 = vlib_add_trace (vm, rt, b0, sizeof (*t0));
len = (b0->current_length < sizeof (t0->data)) ? b0->current_length
: sizeof (t0->data);
t0->len = len;
- clib_memcpy (t0->data, vlib_buffer_get_current (b0), len);
+ clib_memcpy_fast (t0->data, vlib_buffer_get_current (b0), len);
}
bfd_lock (bm);
- if (bfd_consume_echo_pkt (bfd_udp_main.bfd_main, b0))
+ if (bfd_consume_echo_pkt (vm, bfd_udp_main.bfd_main, b0))
{
b0->error = rt->errors[BFD_UDP_ERROR_NONE];
- next0 = BFD_UDP_INPUT_NEXT_NORMAL;
+ next0 = BFD_UDP_ECHO_INPUT_NEXT_NORMAL;
}
else
{
vlib_node_increment_counter (vm, bfd_udp_echo4_input_node.index,
b0->error, 1);
}
- next0 = BFD_UDP_INPUT_NEXT_REPLY_REWRITE;
+ next0 = BFD_UDP_ECHO_INPUT_NEXT_REPLY_REWRITE;
}
bfd_unlock (bm);
.format_trace = bfd_echo_input_format_trace,
- .n_next_nodes = BFD_UDP_INPUT_N_NEXT,
+ .n_next_nodes = BFD_UDP_ECHO_INPUT_N_NEXT,
.next_nodes =
{
- [BFD_UDP_INPUT_NEXT_NORMAL] = "error-drop",
- [BFD_UDP_INPUT_NEXT_REPLY_ARP] = "ip4-arp",
- [BFD_UDP_INPUT_NEXT_REPLY_REWRITE] = "ip4-lookup",
+ [BFD_UDP_ECHO_INPUT_NEXT_NORMAL] = "error-drop",
+ [BFD_UDP_ECHO_INPUT_NEXT_REPLY_ARP] = "ip4-arp",
+ [BFD_UDP_ECHO_INPUT_NEXT_REPLY_REWRITE] = "ip4-lookup",
},
};
/* *INDENT-ON* */
.format_trace = bfd_echo_input_format_trace,
- .n_next_nodes = BFD_UDP_INPUT_N_NEXT,
+ .n_next_nodes = BFD_UDP_ECHO_INPUT_N_NEXT,
.next_nodes =
{
- [BFD_UDP_INPUT_NEXT_NORMAL] = "error-drop",
- [BFD_UDP_INPUT_NEXT_REPLY_ARP] = "ip6-discover-neighbor",
- [BFD_UDP_INPUT_NEXT_REPLY_REWRITE] = "ip6-lookup",
+ [BFD_UDP_ECHO_INPUT_NEXT_NORMAL] = "error-drop",
+ [BFD_UDP_ECHO_INPUT_NEXT_REPLY_ARP] = "ip6-discover-neighbor",
+ [BFD_UDP_ECHO_INPUT_NEXT_REPLY_REWRITE] = "ip6-lookup",
},
};
/* *INDENT-ON* */
static clib_error_t *
-bfd_udp_sw_if_add_del (vnet_main_t * vnm, u32 sw_if_index, u32 is_create)
+bfd_udp_sw_if_add_del (CLIB_UNUSED (vnet_main_t *vnm), u32 sw_if_index,
+ u32 is_create)
{
- bfd_session_t **to_be_freed = NULL;
+ u32 *to_be_freed = NULL;
bfd_udp_main_t *bum = &bfd_udp_main;
BFD_DBG ("sw_if_add_del called, sw_if_index=%u, is_create=%u", sw_if_index,
is_create);
if (!is_create)
{
bfd_session_t *bs;
- pool_foreach (bs, bfd_udp_main.bfd_main->sessions,
- {
- if (bs->transport != BFD_TRANSPORT_UDP4 &&
- bs->transport != BFD_TRANSPORT_UDP6)
- {
- continue;}
- if (bs->udp.key.sw_if_index != sw_if_index)
- {
- continue;}
- vec_add1 (to_be_freed, bs);}
- );
- }
- bfd_session_t **bs;
- vec_foreach (bs, to_be_freed)
- {
- vlib_log_notice (bum->log_class,
- "removal of sw_if_index=%u forces removal of bfd session "
- "with bs_idx=%u", sw_if_index, (*bs)->bs_idx);
- bfd_session_set_flags (*bs, 0);
- bfd_udp_del_session_internal (*bs);
- }
+ pool_foreach (bs, bum->bfd_main->sessions)
+ {
+ if (bs->transport != BFD_TRANSPORT_UDP4 &&
+ bs->transport != BFD_TRANSPORT_UDP6)
+ {
+ continue;
+ }
+ if (bs->udp.key.sw_if_index != sw_if_index)
+ {
+ continue;
+ }
+ vec_add1 (to_be_freed, bs->bs_idx);
+ }
+ }
+ u32 *bs_idx;
+ vec_foreach (bs_idx, to_be_freed)
+ {
+ bfd_session_t *bs = pool_elt_at_index (bum->bfd_main->sessions, *bs_idx);
+ vlib_log_notice (bum->log_class,
+ "removal of sw_if_index=%u forces removal of bfd "
+ "session with bs_idx=%u",
+ sw_if_index, bs->bs_idx);
+ bfd_session_set_flags (vlib_get_main (), bs, 0);
+ bfd_udp_del_session_internal (vlib_get_main (), bs);
+ }
return 0;
}
static clib_error_t *
bfd_udp_init (vlib_main_t * vm)
{
+ bfd_udp_main.udp4_sessions_count = 0;
+ bfd_udp_main.udp6_sessions_count = 0;
mhash_init (&bfd_udp_main.bfd_session_idx_by_bfd_key, sizeof (uword),
sizeof (bfd_udp_key_t));
bfd_udp_main.bfd_main = &bfd_main;
bfd_udp_main.vnet_main = vnet_get_main ();
- udp_register_dst_port (vm, UDP_DST_PORT_bfd4, bfd_udp4_input_node.index, 1);
- udp_register_dst_port (vm, UDP_DST_PORT_bfd6, bfd_udp6_input_node.index, 0);
- udp_register_dst_port (vm, UDP_DST_PORT_bfd_echo4,
- bfd_udp_echo4_input_node.index, 1);
- udp_register_dst_port (vm, UDP_DST_PORT_bfd_echo6,
- bfd_udp_echo6_input_node.index, 0);
vlib_node_t *node = vlib_get_node_by_name (vm, (u8 *) "ip4-arp");
ASSERT (node);
bfd_udp_main.ip4_arp_idx = node->index;
node = vlib_get_node_by_name (vm, (u8 *) "ip6-rewrite");
ASSERT (node);
bfd_udp_main.ip6_rewrite_idx = node->index;
+ node = vlib_get_node_by_name (vm, (u8 *) "ip4-midchain");
+ ASSERT (node);
+ bfd_udp_main.ip4_midchain_idx = node->index;
+ node = vlib_get_node_by_name (vm, (u8 *) "ip6-midchain");
+ ASSERT (node);
+ bfd_udp_main.ip6_midchain_idx = node->index;
bfd_udp_main.log_class = vlib_log_register_class ("bfd", "udp");
vlib_log_debug (bfd_udp_main.log_class, "initialized");
Code Review / vpp.git / blobdiff