git: 221a60a426d7 - stable/13 - pf: expose more syncookie state information to userspace
- Go to: [ bottom of page ] [ top of archives ] [ this month ]
Date: Mon, 13 Nov 2023 09:35:30 UTC
The branch stable/13 has been updated by kp: URL: https://cgit.FreeBSD.org/src/commit/?id=221a60a426d7f73dc4ef021821bf81dd269ba943 commit 221a60a426d7f73dc4ef021821bf81dd269ba943 Author: Kristof Provost <kp@FreeBSD.org> AuthorDate: 2023-11-06 21:20:32 +0000 Commit: Kristof Provost <kp@FreeBSD.org> CommitDate: 2023-11-13 07:10:47 +0000 pf: expose more syncookie state information to userspace Allow userspace to retrieve low and high water marks, as well as the current number of half open states. MFC after: 1 week Sponsored by: Modirum MDPay (cherry picked from commit a6173e94635b03aa7aab90a67785c8c3e7c6247b) --- lib/libpfctl/libpfctl.c | 1 + lib/libpfctl/libpfctl.h | 1 + sbin/pfctl/pfctl_parser.c | 5 +++++ sys/netpfil/pf/pf_ioctl.c | 1 + sys/netpfil/pf/pf_syncookies.c | 2 ++ 5 files changed, 10 insertions(+) diff --git a/lib/libpfctl/libpfctl.c b/lib/libpfctl/libpfctl.c index 4dec539e250b..7fc22734994b 100644 --- a/lib/libpfctl/libpfctl.c +++ b/lib/libpfctl/libpfctl.c @@ -1145,6 +1145,7 @@ pfctl_get_syncookies(int dev, struct pfctl_syncookies *s) s->highwater = nvlist_get_number(nvl, "highwater") * 100 / state_limit; s->lowwater = nvlist_get_number(nvl, "lowwater") * 100 / state_limit; + s->halfopen_states = nvlist_get_number(nvl, "halfopen_states"); nvlist_destroy(nvl); diff --git a/lib/libpfctl/libpfctl.h b/lib/libpfctl/libpfctl.h index 32cd408c5919..78d981c2d769 100644 --- a/lib/libpfctl/libpfctl.h +++ b/lib/libpfctl/libpfctl.h @@ -286,6 +286,7 @@ struct pfctl_syncookies { enum pfctl_syncookies_mode mode; uint8_t highwater; /* Percent */ uint8_t lowwater; /* Percent */ + uint32_t halfopen_states; }; struct pfctl_status* pfctl_get_status(int dev); diff --git a/sbin/pfctl/pfctl_parser.c b/sbin/pfctl/pfctl_parser.c index ed152eca0010..74cb365d2370 100644 --- a/sbin/pfctl/pfctl_parser.c +++ b/sbin/pfctl/pfctl_parser.c @@ -627,6 +627,11 @@ print_status(struct pfctl_status *s, struct pfctl_syncookies *cookies, int opts) PFCTL_SYNCOOKIES_MODE_NAMES[cookies->mode]); printf(" %-25s %s\n", "active", s->syncookies_active ? "active" : "inactive"); + if (opts & PF_OPT_VERBOSE2) { + printf(" %-25s %d %%\n", "highwater", cookies->highwater); + printf(" %-25s %d %%\n", "lowwater", cookies->lowwater); + printf(" %-25s %d\n", "halfopen states", cookies->halfopen_states); + } } } diff --git a/sys/netpfil/pf/pf_ioctl.c b/sys/netpfil/pf/pf_ioctl.c index 44b0bccc7489..639c2462fe75 100644 --- a/sys/netpfil/pf/pf_ioctl.c +++ b/sys/netpfil/pf/pf_ioctl.c @@ -4979,6 +4979,7 @@ pf_getstatus(struct pfioc_nv *nv) nvlist_add_number(nvl, "src_nodes", V_pf_status.src_nodes); nvlist_add_bool(nvl, "syncookies_active", V_pf_status.syncookies_active); + nvlist_add_number(nvl, "halfopen_states", V_pf_status.states_halfopen); /* counters */ error = pf_add_status_counters(nvl, "counters", V_pf_status.counters, diff --git a/sys/netpfil/pf/pf_syncookies.c b/sys/netpfil/pf/pf_syncookies.c index fb81f59097fb..17f5803e18f5 100644 --- a/sys/netpfil/pf/pf_syncookies.c +++ b/sys/netpfil/pf/pf_syncookies.c @@ -155,6 +155,8 @@ pf_get_syncookies(struct pfioc_nv *nv) V_pf_status.syncookies_mode == PF_SYNCOOKIES_ADAPTIVE); nvlist_add_number(nvl, "highwater", V_pf_syncookie_status.hiwat); nvlist_add_number(nvl, "lowwater", V_pf_syncookie_status.lowat); + nvlist_add_number(nvl, "halfopen_states", + atomic_load_32(&V_pf_status.states_halfopen)); nvlpacked = nvlist_pack(nvl, &nv->len); if (nvlpacked == NULL)