static vlib_node_registration_t bfd_process_node;
-/* set to 0 here, real values filled at startup */
-static u32 bfd_node_index_by_transport[] = {
-#define F(t, n) [BFD_TRANSPORT_##t] = 0,
- foreach_bfd_transport (F)
-#undef F
-};
-
u8 *
format_bfd_auth_key (u8 * s, va_list * args)
{
}
static void
-bfd_add_transport_layer (vlib_main_t * vm, vlib_buffer_t * b,
- bfd_session_t * bs)
+bfd_add_transport_layer (vlib_main_t * vm, u32 bi, bfd_session_t * bs)
+{
+ switch (bs->transport)
+ {
+ case BFD_TRANSPORT_UDP4:
+ BFD_DBG ("Transport bfd via udp4, bs_idx=%u", bs->bs_idx);
+ bfd_add_udp4_transport (vm, bi, bs, 0 /* is_echo */ );
+ break;
+ case BFD_TRANSPORT_UDP6:
+ BFD_DBG ("Transport bfd via udp6, bs_idx=%u", bs->bs_idx);
+ bfd_add_udp6_transport (vm, bi, bs, 0 /* is_echo */ );
+ break;
+ }
+}
+
+static int
+bfd_transport_control_frame (vlib_main_t * vm, u32 bi, bfd_session_t * bs)
{
switch (bs->transport)
{
case BFD_TRANSPORT_UDP4:
BFD_DBG ("Transport bfd via udp4, bs_idx=%u", bs->bs_idx);
- bfd_add_udp4_transport (vm, b, bs, 0 /* is_echo */ );
+ return bfd_transport_udp4 (vm, bi, bs);
break;
case BFD_TRANSPORT_UDP6:
BFD_DBG ("Transport bfd via udp6, bs_idx=%u", bs->bs_idx);
- bfd_add_udp6_transport (vm, b, bs, 0 /* is_echo */ );
+ return bfd_transport_udp6 (vm, bi, bs);
break;
}
+ return 0;
}
static int
-bfd_echo_add_transport_layer (vlib_main_t * vm, vlib_buffer_t * b,
- bfd_session_t * bs)
+bfd_echo_add_transport_layer (vlib_main_t * vm, u32 bi, bfd_session_t * bs)
{
switch (bs->transport)
{
case BFD_TRANSPORT_UDP4:
BFD_DBG ("Transport bfd echo via udp4, bs_idx=%u", bs->bs_idx);
- return bfd_add_udp4_transport (vm, b, bs, 1 /* is_echo */ );
+ return bfd_add_udp4_transport (vm, bi, bs, 1 /* is_echo */ );
break;
case BFD_TRANSPORT_UDP6:
BFD_DBG ("Transport bfd echo via udp6, bs_idx=%u", bs->bs_idx);
- return bfd_add_udp6_transport (vm, b, bs, 1 /* is_echo */ );
+ return bfd_add_udp6_transport (vm, bi, bs, 1 /* is_echo */ );
break;
}
return 0;
}
-static void
-bfd_create_frame_to_next_node (vlib_main_t * vm, bfd_session_t * bs, u32 bi)
+static int
+bfd_transport_echo (vlib_main_t * vm, u32 bi, bfd_session_t * bs)
{
-
- vlib_frame_t *f =
- vlib_get_frame_to_node (vm, bfd_node_index_by_transport[bs->transport]);
-
- u32 *to_next = vlib_frame_vector_args (f);
- to_next[0] = bi;
- f->n_vectors = 1;
- vlib_put_frame_to_node (vm, bfd_node_index_by_transport[bs->transport], f);
+ switch (bs->transport)
+ {
+ case BFD_TRANSPORT_UDP4:
+ BFD_DBG ("Transport bfd echo via udp4, bs_idx=%u", bs->bs_idx);
+ return bfd_transport_udp4 (vm, bi, bs);
+ break;
+ case BFD_TRANSPORT_UDP6:
+ BFD_DBG ("Transport bfd echo via udp6, bs_idx=%u", bs->bs_idx);
+ return bfd_transport_udp6 (vm, bi, bs);
+ break;
+ }
+ return 0;
}
#if WITH_LIBSSL > 0
bfd_pkt_set_diag_code (pkt, bs->local_diag);
bfd_pkt_set_state (pkt, bs->local_state);
pkt->head.detect_mult = bs->local_detect_mult;
- pkt->head.length = clib_host_to_net_u32 (bfd_length);
+ pkt->head.length = bfd_length;
pkt->my_disc = bs->local_discr;
pkt->your_disc = bs->remote_discr;
pkt->des_min_tx = clib_host_to_net_u32 (bs->config_desired_min_tx_usec);
static void
bfd_send_echo (vlib_main_t * vm, vlib_node_runtime_t * rt,
- bfd_main_t * bm, bfd_session_t * bs, u64 now,
- int handling_wakeup)
+ bfd_main_t * bm, bfd_session_t * bs, u64 now)
{
if (!bfd_is_echo_possible (bs))
{
bs->echo = 0;
return;
}
- /* sometimes the wheel expires an event a bit sooner than requested, account
+ /* sometimes the wheel expires an event a bit sooner than requested,
+ account
for that here */
if (now + bm->wheel_inaccuracy >= bs->echo_tx_timeout_clocks)
{
}
vlib_buffer_t *b = vlib_get_buffer (vm, bi);
ASSERT (b->current_data == 0);
+ memset (vnet_buffer (b), 0, sizeof (*vnet_buffer (b)));
+ VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b);
bfd_echo_pkt_t *pkt = vlib_buffer_get_current (b);
memset (pkt, 0, sizeof (*pkt));
pkt->discriminator = bs->local_discr;
bfd_calc_echo_checksum (bs->local_discr, pkt->expire_time_clocks,
bs->echo_secret);
b->current_length = sizeof (*pkt);
- if (!bfd_echo_add_transport_layer (vm, b, bs))
+ if (!bfd_echo_add_transport_layer (vm, bi, bs))
+ {
+ BFD_ERR ("cannot send echo packet out, turning echo off");
+ bs->echo = 0;
+ vlib_buffer_free_one (vm, bi);
+ return;
+ }
+ if (!bfd_transport_echo (vm, bi, bs))
{
BFD_ERR ("cannot send echo packet out, turning echo off");
bs->echo = 0;
}
bs->echo_last_tx_clocks = now;
bfd_calc_next_echo_tx (bm, bs, now);
- bfd_create_frame_to_next_node (vm, bs, bi);
}
else
{
static void
bfd_send_periodic (vlib_main_t * vm, vlib_node_runtime_t * rt,
- bfd_main_t * bm, bfd_session_t * bs, u64 now,
- int handling_wakeup)
+ bfd_main_t * bm, bfd_session_t * bs, u64 now)
{
if (!bs->remote_min_rx_usec && BFD_POLL_NOT_NEEDED == bs->poll_state)
{
BFD_DBG ("Remote demand is set, not sending periodic control frame");
return;
}
- /* sometimes the wheel expires an event a bit sooner than requested, account
- for that here */
+ /*
+ * sometimes the wheel expires an event a bit sooner than requested, account
+ * for that here
+ */
if (now + bm->wheel_inaccuracy >= bs->tx_timeout_clocks)
{
BFD_DBG ("\nSending periodic control frame: %U", format_bfd_session,
}
vlib_buffer_t *b = vlib_get_buffer (vm, bi);
ASSERT (b->current_data == 0);
+ memset (vnet_buffer (b), 0, sizeof (*vnet_buffer (b)));
+ VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b);
bfd_init_control_frame (bm, bs, b);
switch (bs->poll_state)
{
break;
}
bfd_add_auth_section (b, bs);
- bfd_add_transport_layer (vm, b, bs);
+ bfd_add_transport_layer (vm, bi, bs);
+ if (!bfd_transport_control_frame (vm, bi, bs))
+ {
+ vlib_buffer_free_one (vm, bi);
+ }
bs->last_tx_clocks = now;
bfd_calc_next_tx (bm, bs, now);
- bfd_create_frame_to_next_node (vm, bs, bi);
}
else
{
void
bfd_init_final_control_frame (vlib_main_t * vm, vlib_buffer_t * b,
- bfd_main_t * bm, bfd_session_t * bs)
+ bfd_main_t * bm, bfd_session_t * bs,
+ int is_local)
{
BFD_DBG ("Send final control frame for bs_idx=%lu", bs->bs_idx);
bfd_init_control_frame (bm, bs, b);
bfd_pkt_set_final (vlib_buffer_get_current (b));
bfd_add_auth_section (b, bs);
- bfd_add_transport_layer (vm, b, bs);
+ u32 bi = vlib_get_buffer_index (vm, b);
+ bfd_add_transport_layer (vm, bi, bs);
bs->last_tx_clocks = clib_cpu_time_now ();
/*
* RFC allows to include changes in final frame, so if there were any
bfd_check_rx_timeout (bfd_main_t * bm, bfd_session_t * bs, u64 now,
int handling_wakeup)
{
- /* sometimes the wheel expires an event a bit sooner than requested, account
- for that here */
+ /*
+ * sometimes the wheel expires an event a bit sooner than requested, account
+ * for that here
+ */
if (bs->last_rx_clocks + bs->detection_time_clocks <=
now + bm->wheel_inaccuracy)
{
switch (bs->local_state)
{
case BFD_STATE_admin_down:
- bfd_send_periodic (vm, rt, bm, bs, now, 1);
+ bfd_send_periodic (vm, rt, bm, bs, now);
break;
case BFD_STATE_down:
- bfd_send_periodic (vm, rt, bm, bs, now, 1);
+ bfd_send_periodic (vm, rt, bm, bs, now);
break;
case BFD_STATE_init:
bfd_check_rx_timeout (bm, bs, now, 1);
- bfd_send_periodic (vm, rt, bm, bs, now, 1);
+ bfd_send_periodic (vm, rt, bm, bs, now);
break;
case BFD_STATE_up:
bfd_check_rx_timeout (bm, bs, now, 1);
bs->config_required_min_rx_clocks));
bfd_set_poll_state (bs, BFD_POLL_NEEDED);
}
- bfd_send_periodic (vm, rt, bm, bs, now, 1);
+ bfd_send_periodic (vm, rt, bm, bs, now);
if (bs->echo)
{
- bfd_send_echo (vm, rt, bm, bs, now, 1);
+ bfd_send_echo (vm, rt, bm, bs, now);
}
break;
}
{
bfd_session_t *bs =
pool_elt_at_index (bm->sessions, *event_data);
- bfd_send_periodic (vm, rt, bm, bs, now, 1);
+ bfd_send_periodic (vm, rt, bm, bs, now);
+ bfd_set_timer (bm, bs, now, 1);
}
else
{
const u64 now = clib_cpu_time_now ();
timing_wheel_init (&bm->wheel, now, bm->cpu_cps);
bm->wheel_inaccuracy = 2 << bm->wheel.log2_clocks_per_bin;
-
- vlib_node_t *node = NULL;
-#define F(t, n) \
- node = vlib_get_node_by_name (vm, (u8 *)n); \
- bfd_node_index_by_transport[BFD_TRANSPORT_##t] = node->index; \
- BFD_DBG ("node '%s' has index %u", n, node->index);
- foreach_bfd_transport (F);
-#undef F
return 0;
}
{
if (BFD_STATE_down == bs->remote_state)
{
+ bfd_set_diag (bs, BFD_DIAG_CODE_no_diag);
bfd_set_state (bm, bs, BFD_STATE_init, 0);
}
else if (BFD_STATE_init == bs->remote_state)
{
+ bfd_set_diag (bs, BFD_DIAG_CODE_no_diag);
bfd_set_state (bm, bs, BFD_STATE_up, 0);
}
}
if (BFD_STATE_up == bs->remote_state ||
BFD_STATE_init == bs->remote_state)
{
+ bfd_set_diag (bs, BFD_DIAG_CODE_no_diag);
bfd_set_state (bm, bs, BFD_STATE_up, 0);
}
}
Code Review / vpp.git / blobdiff