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authorKlement Sekera <ksekera@cisco.com>2020-05-27 12:41:34 +0000
committerOle Trøan <otroan@employees.org>2020-06-04 08:37:28 +0000
commit17a8ab6857f023bc1436d84808acc58dd614203e (patch)
tree5d488cd5f54686d63a32d832682752a610afca02 /src/plugins/nat/in2out.c
parentce412fd7d644a21db9f0a170b88084223b7ee0fe (diff)
nat: add tracing for nat44-hairpinning
Type: improvement Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: Ife437f959e29d3de88bd7ee77221ada86fb03e80
Diffstat (limited to 'src/plugins/nat/in2out.c')
-rw-r--r--src/plugins/nat/in2out.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/src/plugins/nat/in2out.c b/src/plugins/nat/in2out.c
index 980a638f059..8616d90ad2b 100644
--- a/src/plugins/nat/in2out.c
+++ b/src/plugins/nat/in2out.c
@@ -43,6 +43,7 @@ typedef struct
u32 next_index;
u32 session_index;
u32 is_slow_path;
+ u32 is_hairpinning;
} snat_in2out_trace_t;
/* packet trace format function */
@@ -58,6 +59,10 @@ format_snat_in2out_trace (u8 * s, va_list * args)
s = format (s, "%s: sw_if_index %d, next index %d, session %d", tag,
t->sw_if_index, t->next_index, t->session_index);
+ if (t->is_hairpinning)
+ {
+ s = format (s, ", with-hairpinning");
+ }
return s;
}
@@ -1776,6 +1781,7 @@ VLIB_NODE_FN (snat_in2out_fast_node) (vlib_main_t * vm,
u32 pkts_processed = 0;
snat_main_t *sm = &snat_main;
u32 stats_node_index;
+ int is_hairpinning = 0;
stats_node_index = sm->in2out_fast_node_index;
@@ -1923,7 +1929,9 @@ VLIB_NODE_FN (snat_in2out_fast_node) (vlib_main_t * vm,
}
/* Hairpinning */
- snat_hairpinning (sm, b0, ip0, udp0, tcp0, proto0, 0);
+ snat_hairpinning (vm, node, sm, b0, ip0, udp0, tcp0, proto0, 0,
+ 0 /* do_trace */ );
+ is_hairpinning = 1;
trace0:
if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)
@@ -1933,6 +1941,7 @@ VLIB_NODE_FN (snat_in2out_fast_node) (vlib_main_t * vm,
vlib_add_trace (vm, node, b0, sizeof (*t));
t->sw_if_index = sw_if_index0;
t->next_index = next0;
+ t->is_hairpinning = is_hairpinning;
}
pkts_processed += next0 != SNAT_IN2OUT_NEXT_DROP;