The branch main has been updated by kp:
URL:
https://cgit.FreeBSD.org/src/commit/?id=f4c02909167b6f791df470afddfe31cabf009c4d
commit f4c02909167b6f791df470afddfe31cabf009c4d
Author: Kristof Provost <k...@freebsd.org>
AuthorDate: 2021-04-02 13:53:34 +0000
Commit: Kristof Provost <k...@freebsd.org>
CommitDate: 2021-04-05 07:57:06 +0000
pf: Add static DTrace probe points
These two have proven to be useful during debugging. We may as well keep
them permanently.
Others will be added as their utility becomes clear.
Reviewed by: gnn
MFC after: 2 weeks
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D29555
---
sys/netpfil/pf/pf.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/sys/netpfil/pf/pf.c b/sys/netpfil/pf/pf.c
index 5b41be4ad683..4b11122df544 100644
--- a/sys/netpfil/pf/pf.c
+++ b/sys/netpfil/pf/pf.c
@@ -59,6 +59,7 @@ __FBSDID("$FreeBSD$");
#include <sys/md5.h>
#include <sys/random.h>
#include <sys/refcount.h>
+#include <sys/sdt.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <sys/taskqueue.h>
@@ -112,6 +113,15 @@ __FBSDID("$FreeBSD$");
#define DPFPRINTF(n, x) if (V_pf_status.debug >= (n)) printf x
+SDT_PROVIDER_DEFINE(pf);
+SDT_PROBE_DEFINE4(pf, ip, test, done, "int", "int", "struct pf_krule *",
+ "struct pf_state *");
+SDT_PROBE_DEFINE4(pf, ip, test6, done, "int", "int", "struct pf_krule *",
+ "struct pf_state *");
+SDT_PROBE_DEFINE5(pf, ip, state, lookup, "struct pfi_kkif *",
+ "struct pf_state_key_cmp *", "int", "struct pf_pdesc *",
+ "struct pf_state *");
+
/*
* Global variables
*/
@@ -326,6 +336,7 @@ VNET_DEFINE(struct pf_limit, pf_limits[PF_LIMIT_MAX]);
#define STATE_LOOKUP(i, k, d, s, pd)
\
do { \
(s) = pf_find_state((i), (k), (d)); \
+ SDT_PROBE5(pf, ip, state, lookup, i, k, d, pd, (s)); \
if ((s) == NULL) \
return (PF_DROP); \
if (PACKET_LOOPED(pd)) \
@@ -6318,6 +6329,8 @@ done:
if (s)
PF_STATE_UNLOCK(s);
+ SDT_PROBE4(pf, ip, test, done, action, reason, r, s);
+
return (action);
}
#endif /* INET */
@@ -6726,6 +6739,8 @@ done:
(mtag = m_tag_find(m, PF_REASSEMBLED, NULL)) != NULL)
action = pf_refragment6(ifp, m0, mtag);
+ SDT_PROBE4(pf, ip, test6, done, action, reason, r, s);
+
return (action);
}
#endif /* INET6 */
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