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-rw-r--r--vnet/vnet/bfd/bfd_debug.h2
-rw-r--r--vnet/vnet/bfd/bfd_main.c70
-rw-r--r--vnet/vnet/bfd/bfd_udp.c15
3 files changed, 59 insertions, 28 deletions
diff --git a/vnet/vnet/bfd/bfd_debug.h b/vnet/vnet/bfd/bfd_debug.h
index c11e6d9f..0072ff8f 100644
--- a/vnet/vnet/bfd/bfd_debug.h
+++ b/vnet/vnet/bfd/bfd_debug.h
@@ -47,6 +47,7 @@
_s = format (_s, "%6.02f:DBG:%s:%d:%s():" fmt, vlib_time_now (vm), \
__file, __LINE__, __func__, ##__VA_ARGS__); \
printf ("%s\n", _s); \
+ fflush (stdout); \
vec_free (_s); \
} \
while (0);
@@ -60,6 +61,7 @@
_s = format (_s, "%6.02f:ERR:%s:%d:%s():" fmt, vlib_time_now (vm), \
__file, __LINE__, __func__, ##__VA_ARGS__); \
printf ("%s\n", _s); \
+ fflush (stdout); \
vec_free (_s); \
} \
while (0);
diff --git a/vnet/vnet/bfd/bfd_main.c b/vnet/vnet/bfd/bfd_main.c
index 26b9fe31..ffc04ee4 100644
--- a/vnet/vnet/bfd/bfd_main.c
+++ b/vnet/vnet/bfd/bfd_main.c
@@ -59,8 +59,8 @@ typedef enum
BFD_INPUT_N_NEXT,
} bfd_input_next_t;
-static void bfd_on_state_change (bfd_main_t * bm, bfd_session_t * bs,
- u64 now);
+static void bfd_on_state_change (bfd_main_t * bm, bfd_session_t * bs, u64 now,
+ int handling_wakeup);
static void
bfd_set_defaults (bfd_main_t * bm, bfd_session_t * bs)
@@ -88,7 +88,8 @@ bfd_set_diag (bfd_session_t * bs, bfd_diag_code_e code)
}
static void
-bfd_set_state (bfd_main_t * bm, bfd_session_t * bs, bfd_state_e new_state)
+bfd_set_state (bfd_main_t * bm, bfd_session_t * bs,
+ bfd_state_e new_state, int handling_wakeup)
{
if (bs->local_state != new_state)
{
@@ -96,7 +97,7 @@ bfd_set_state (bfd_main_t * bm, bfd_session_t * bs, bfd_state_e new_state)
bfd_state_string (bs->local_state),
bfd_state_string (new_state));
bs->local_state = new_state;
- bfd_on_state_change (bm, bs, clib_cpu_time_now ());
+ bfd_on_state_change (bm, bs, clib_cpu_time_now (), handling_wakeup);
}
}
@@ -175,7 +176,8 @@ bfd_recalc_detection_time (bfd_main_t * bm, bfd_session_t * bs)
}
static void
-bfd_set_timer (bfd_main_t * bm, bfd_session_t * bs, u64 now)
+bfd_set_timer (bfd_main_t * bm, bfd_session_t * bs, u64 now,
+ int handling_wakeup)
{
u64 next = 0;
u64 rx_timeout = 0;
@@ -212,12 +214,18 @@ bfd_set_timer (bfd_main_t * bm, bfd_session_t * bs, u64 now)
(i64) (bs->wheel_time_clocks - clib_cpu_time_now ()) /
bm->cpu_cps, bs->bs_idx);
timing_wheel_insert (&bm->wheel, bs->wheel_time_clocks, bs->bs_idx);
+ if (!handling_wakeup)
+ {
+ vlib_process_signal_event (bm->vlib_main,
+ bm->bfd_process_node_index,
+ BFD_EVENT_RESCHEDULE, bs->bs_idx);
+ }
}
}
static void
bfd_set_desired_min_tx (bfd_main_t * bm, bfd_session_t * bs, u64 now,
- u32 desired_min_tx_us)
+ u32 desired_min_tx_us, int handling_wakeup)
{
bs->desired_min_tx_us = desired_min_tx_us;
bs->desired_min_tx_clocks = bfd_us_to_clocks (bm, bs->desired_min_tx_us);
@@ -227,7 +235,7 @@ bfd_set_desired_min_tx (bfd_main_t * bm, bfd_session_t * bs, u64 now,
bfd_recalc_detection_time (bm, bs);
bfd_recalc_tx_interval (bm, bs);
bfd_calc_next_tx (bm, bs, now);
- bfd_set_timer (bm, bs, now);
+ bfd_set_timer (bm, bs, now, handling_wakeup);
}
void
@@ -295,12 +303,12 @@ bfd_session_set_flags (u32 bs_idx, u8 admin_up_down)
bfd_session_t *bs = pool_elt_at_index (bm->sessions, bs_idx);
if (admin_up_down)
{
- bfd_set_state (bm, bs, BFD_STATE_down);
+ bfd_set_state (bm, bs, BFD_STATE_down, 0);
}
else
{
bfd_set_diag (bs, BFD_DIAG_CODE_neighbor_sig_down);
- bfd_set_state (bm, bs, BFD_STATE_admin_down);
+ bfd_set_state (bm, bs, BFD_STATE_admin_down, 0);
}
return 0;
}
@@ -344,7 +352,8 @@ bfd_input_format_trace (u8 * s, va_list * args)
}
static void
-bfd_on_state_change (bfd_main_t * bm, bfd_session_t * bs, u64 now)
+bfd_on_state_change (bfd_main_t * bm, bfd_session_t * bs, u64 now,
+ int handling_wakeup)
{
BFD_DBG ("State changed: %U", format_bfd_session, bs);
bfd_event (bm, bs);
@@ -353,20 +362,24 @@ bfd_on_state_change (bfd_main_t * bm, bfd_session_t * bs, u64 now)
case BFD_STATE_admin_down:
bfd_set_desired_min_tx (bm, bs, now,
clib_max (bs->config_desired_min_tx_us,
- BFD_DEFAULT_DESIRED_MIN_TX_US));
+ BFD_DEFAULT_DESIRED_MIN_TX_US),
+ handling_wakeup);
break;
case BFD_STATE_down:
bfd_set_desired_min_tx (bm, bs, now,
clib_max (bs->config_desired_min_tx_us,
- BFD_DEFAULT_DESIRED_MIN_TX_US));
+ BFD_DEFAULT_DESIRED_MIN_TX_US),
+ handling_wakeup);
break;
case BFD_STATE_init:
bfd_set_desired_min_tx (bm, bs, now,
clib_max (bs->config_desired_min_tx_us,
- BFD_DEFAULT_DESIRED_MIN_TX_US));
+ BFD_DEFAULT_DESIRED_MIN_TX_US),
+ handling_wakeup);
break;
case BFD_STATE_up:
- bfd_set_desired_min_tx (bm, bs, now, bs->config_desired_min_tx_us);
+ bfd_set_desired_min_tx (bm, bs, now, bs->config_desired_min_tx_us,
+ handling_wakeup);
break;
}
}
@@ -441,7 +454,8 @@ bfd_init_control_frame (vlib_buffer_t * b, bfd_session_t * bs)
static void
bfd_send_periodic (vlib_main_t * vm, vlib_node_runtime_t * rt,
- bfd_main_t * bm, bfd_session_t * bs, u64 now)
+ bfd_main_t * bm, bfd_session_t * bs, u64 now,
+ int handling_wakeup)
{
if (!bs->remote_min_rx_us)
{
@@ -472,7 +486,7 @@ bfd_send_periodic (vlib_main_t * vm, vlib_node_runtime_t * rt,
{
BFD_DBG ("No need to send control frame now");
}
- bfd_set_timer (bm, bs, now);
+ bfd_set_timer (bm, bs, now, handling_wakeup);
}
void
@@ -485,13 +499,14 @@ bfd_send_final (vlib_main_t * vm, vlib_buffer_t * b, bfd_session_t * bs)
}
static void
-bfd_check_rx_timeout (bfd_main_t * bm, bfd_session_t * bs, u64 now)
+bfd_check_rx_timeout (bfd_main_t * bm, bfd_session_t * bs, u64 now,
+ int handling_wakeup)
{
if (bs->last_rx_clocks + bs->detection_time_clocks < now)
{
BFD_DBG ("Rx timeout, session goes down");
bfd_set_diag (bs, BFD_DIAG_CODE_det_time_exp);
- bfd_set_state (bm, bs, BFD_STATE_down);
+ bfd_set_state (bm, bs, BFD_STATE_down, handling_wakeup);
}
}
@@ -508,7 +523,7 @@ bfd_on_timeout (vlib_main_t * vm, vlib_node_runtime_t * rt, bfd_main_t * bm,
abort ();
break;
case BFD_STATE_down:
- bfd_send_periodic (vm, rt, bm, bs, now);
+ bfd_send_periodic (vm, rt, bm, bs, now, 1);
break;
case BFD_STATE_init:
BFD_ERR ("Unexpected timeout when in %s state",
@@ -516,8 +531,8 @@ bfd_on_timeout (vlib_main_t * vm, vlib_node_runtime_t * rt, bfd_main_t * bm,
abort ();
break;
case BFD_STATE_up:
- bfd_check_rx_timeout (bm, bs, now);
- bfd_send_periodic (vm, rt, bm, bs, now);
+ bfd_check_rx_timeout (bm, bs, now, 1);
+ bfd_send_periodic (vm, rt, bm, bs, now, 1);
break;
}
}
@@ -602,7 +617,7 @@ bfd_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
{
bfd_session_t *bs =
pool_elt_at_index (bm->sessions, *event_data);
- bfd_send_periodic (vm, rt, bm, bs, now);
+ bfd_send_periodic (vm, rt, bm, bs, now, 1);
}
while (0);
break;
@@ -710,6 +725,7 @@ bfd_get_session (bfd_main_t * bm, bfd_transport_t t)
{
bfd_session_t *result;
pool_get (bm->sessions, result);
+ memset (result, 0, sizeof (*result));
result->bs_idx = result - bm->sessions;
result->transport = t;
result->local_discr = random_u32 (&bm->random_seed);
@@ -871,17 +887,17 @@ bfd_consume_pkt (bfd_main_t * bm, const bfd_pkt_t * pkt, u32 bs_idx)
if (BFD_STATE_admin_down == bs->remote_state)
{
bfd_set_diag (bs, BFD_DIAG_CODE_neighbor_sig_down);
- bfd_set_state (bm, bs, BFD_STATE_down);
+ bfd_set_state (bm, bs, BFD_STATE_down, 0);
}
else if (BFD_STATE_down == bs->local_state)
{
if (BFD_STATE_down == bs->remote_state)
{
- bfd_set_state (bm, bs, BFD_STATE_init);
+ bfd_set_state (bm, bs, BFD_STATE_init, 0);
}
else if (BFD_STATE_init == bs->remote_state)
{
- bfd_set_state (bm, bs, BFD_STATE_up);
+ bfd_set_state (bm, bs, BFD_STATE_up, 0);
}
}
else if (BFD_STATE_init == bs->local_state)
@@ -889,7 +905,7 @@ bfd_consume_pkt (bfd_main_t * bm, const bfd_pkt_t * pkt, u32 bs_idx)
if (BFD_STATE_up == bs->remote_state ||
BFD_STATE_init == bs->remote_state)
{
- bfd_set_state (bm, bs, BFD_STATE_up);
+ bfd_set_state (bm, bs, BFD_STATE_up, 0);
}
}
else /* BFD_STATE_up == bs->local_state */
@@ -897,7 +913,7 @@ bfd_consume_pkt (bfd_main_t * bm, const bfd_pkt_t * pkt, u32 bs_idx)
if (BFD_STATE_down == bs->remote_state)
{
bfd_set_diag (bs, BFD_DIAG_CODE_neighbor_sig_down);
- bfd_set_state (bm, bs, BFD_STATE_down);
+ bfd_set_state (bm, bs, BFD_STATE_down, 0);
}
}
}
diff --git a/vnet/vnet/bfd/bfd_udp.c b/vnet/vnet/bfd/bfd_udp.c
index 44a4a18d..9d75e3ad 100644
--- a/vnet/vnet/bfd/bfd_udp.c
+++ b/vnet/vnet/bfd/bfd_udp.c
@@ -26,6 +26,9 @@ typedef struct
mhash_t bfd_session_idx_by_bfd_key;
} bfd_udp_main_t;
+static vlib_node_registration_t bfd_udp4_input_node;
+static vlib_node_registration_t bfd_udp6_input_node;
+
bfd_udp_main_t bfd_udp_main;
void bfd_udp_transport_to_buffer (vlib_main_t *vm, vlib_buffer_t *b,
@@ -510,12 +513,22 @@ static uword bfd_udp_input (vlib_main_t *vm, vlib_node_runtime_t *rt,
if (BFD_UDP_ERROR_NONE == error0)
{
/* if everything went fine, check for poll bit, if present, re-use
- the buffer and based on (now update) session parameters, send the
+ the buffer and based on (now updated) session parameters, send the
final packet back */
const bfd_pkt_t *pkt = vlib_buffer_get_current (b0);
if (bfd_pkt_get_poll (pkt))
{
bfd_send_final (vm, b0, bs);
+ if (is_ipv6)
+ {
+ vlib_node_increment_counter (vm, bfd_udp6_input_node.index,
+ b0->error, 1);
+ }
+ else
+ {
+ vlib_node_increment_counter (vm, bfd_udp4_input_node.index,
+ b0->error, 1);
+ }
next0 = BFD_UDP_INPUT_NEXT_REPLY;
}
}