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pf: add SDT on REASON_SET()

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Add a probe point in the REASON_SET macro. This can be halpful during debugging,
letting us figure out exactly where PF made a decision.

Sponsored by:	Rubicon Communications, LLC ("Netgate")
This commit is contained in:
Kristof Provost 2025-04-14 13:41:30 +02:00
parent 9c68e37d96
commit 29273f6a25
2 changed files with 3 additions and 0 deletions
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2
sys/net/pfvar.h
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@ -330,6 +330,7 @@ MALLOC_DECLARE(M_PFHASH);
MALLOC_DECLARE(M_PF_RULE_ITEM);
SDT_PROVIDER_DECLARE(pf);
SDT_PROBE_DECLARE(pf, , test, reason_set);
struct pfi_dynaddr {
TAILQ_ENTRY(pfi_dynaddr) entry;
@ -1759,6 +1760,7 @@ struct pf_sctp_multihome_job {
#define REASON_SET(a, x) \
do { \
SDT_PROBE2(pf, , test, reason_set, x, __LINE__); \
if ((a) != NULL) \
*(a) = (x); \
if (x < PFRES_MAX) \

1
sys/netpfil/pf/pf.c
View file

@ -120,6 +120,7 @@
#define DPFPRINTF(n, x) if (V_pf_status.debug >= (n)) printf x
SDT_PROVIDER_DEFINE(pf);
SDT_PROBE_DEFINE2(pf, , test, reason_set, "int", "int");
SDT_PROBE_DEFINE4(pf, ip, test, done, "int", "int", "struct pf_krule *",
"struct pf_kstate *");
SDT_PROBE_DEFINE5(pf, ip, state, lookup, "struct pfi_kkif *",