Date: Mon, 19 Apr 2021 19:21:48 GMT From: Kristof Provost <kp@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 8601d1baf13d - stable/13 - pf: Add static DTrace probe points Message-ID: <202104191921.13JJLmVI013011@gitrepo.freebsd.org>
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The branch stable/13 has been updated by kp: URL: https://cgit.FreeBSD.org/src/commit/?id=8601d1baf13da4f4241ecead4854839c076558d5 commit 8601d1baf13da4f4241ecead4854839c076558d5 Author: Kristof Provost <kp@FreeBSD.org> AuthorDate: 2021-04-02 13:53:34 +0000 Commit: Kristof Provost <kp@FreeBSD.org> CommitDate: 2021-04-19 19:19:06 +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 (cherry picked from commit f4c02909167b6f791df470afddfe31cabf009c4d) --- 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 25b958696345..2429fd97c887 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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