iptables-1.8.10-3.el9
* Wed Jun 12 2024 Phil Sutter <psutter@redhat.com> [1.8.10-3.el9] - extensions: libxt_sctp: Add an extra assert() (Phil Sutter) [RHEL-40928] - spec: Add symlinks for merged extension DSOs (Phil Sutter) [RHEL-32463] - nft: Fix for broken recover_rule_compat() (Phil Sutter) [RHEL-26619] - spec: Ship ebtables-translate and man page (Phil Sutter) [RHEL-32922] Resolves: RHEL-26619, RHEL-32463, RHEL-32922, RHEL-40928
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Phil Sutter
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18727bce9f
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99
0004-nft-Fix-for-broken-recover_rule_compat.patch
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99
0004-nft-Fix-for-broken-recover_rule_compat.patch
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@ -0,0 +1,99 @@
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From 4c883007ecf15b5fe18a71688a4383686e7c0026 Mon Sep 17 00:00:00 2001
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From: Phil Sutter <psutter@redhat.com>
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Date: Wed, 22 May 2024 18:26:58 +0200
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Subject: [PATCH] nft: Fix for broken recover_rule_compat()
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JIRA: https://issues.redhat.com/browse/RHEL-26619
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Upstream Status: iptables commit bb1a7a5b297aa271f7f59abbcb891cd94d7fb305
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commit bb1a7a5b297aa271f7f59abbcb891cd94d7fb305
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Author: Phil Sutter <phil@nwl.cc>
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Date: Tue Feb 27 18:47:39 2024 +0100
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nft: Fix for broken recover_rule_compat()
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When IPv4 rule generator was changed to emit payload instead of
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meta expressions for l4proto matches, the code reinserting
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NFTNL_RULE_COMPAT_* attributes into rules being reused for counter
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zeroing was broken by accident.
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Make rule compat recovery aware of the alternative match, basically
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reinstating the effect of commit 7a373f6683afb ("nft: Fix -Z for rules
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with NFTA_RULE_COMPAT") but add a test case this time to make sure
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things stay intact.
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Fixes: 69278f9602b43 ("nft: use payload matching for layer 4 protocol")
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Signed-off-by: Phil Sutter <phil@nwl.cc>
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Signed-off-by: Phil Sutter <psutter@redhat.com>
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---
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iptables/nft.c | 27 ++++++++++++++++---
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.../nft-only/0011-zero-needs-compat_0 | 12 +++++++++
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2 files changed, 35 insertions(+), 4 deletions(-)
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create mode 100755 iptables/tests/shell/testcases/nft-only/0011-zero-needs-compat_0
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diff --git a/iptables/nft.c b/iptables/nft.c
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index 97fd4f4..c4caf29 100644
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--- a/iptables/nft.c
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+++ b/iptables/nft.c
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@@ -3679,6 +3679,27 @@ const char *nft_strerror(int err)
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return strerror(err);
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}
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+static int l4proto_expr_get_dreg(struct nftnl_expr *e, uint32_t *dregp)
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+{
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+ const char *name = nftnl_expr_get_str(e, NFTNL_EXPR_NAME);
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+ uint32_t poff = offsetof(struct iphdr, protocol);
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+ uint32_t pbase = NFT_PAYLOAD_NETWORK_HEADER;
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+
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+ if (!strcmp(name, "payload") &&
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+ nftnl_expr_get_u32(e, NFTNL_EXPR_PAYLOAD_BASE) == pbase &&
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+ nftnl_expr_get_u32(e, NFTNL_EXPR_PAYLOAD_OFFSET) == poff &&
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+ nftnl_expr_get_u32(e, NFTNL_EXPR_PAYLOAD_LEN) == sizeof(uint8_t)) {
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+ *dregp = nftnl_expr_get_u32(e, NFTNL_EXPR_PAYLOAD_DREG);
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+ return 0;
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+ }
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+ if (!strcmp(name, "meta") &&
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+ nftnl_expr_get_u32(e, NFTNL_EXPR_META_KEY) == NFT_META_L4PROTO) {
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+ *dregp = nftnl_expr_get_u32(e, NFTNL_EXPR_META_DREG);
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+ return 0;
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+ }
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+ return -1;
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+}
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+
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static int recover_rule_compat(struct nftnl_rule *r)
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{
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struct nftnl_expr_iter *iter;
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@@ -3695,12 +3716,10 @@ next_expr:
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if (!e)
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goto out;
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- if (strcmp("meta", nftnl_expr_get_str(e, NFTNL_EXPR_NAME)) ||
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- nftnl_expr_get_u32(e, NFTNL_EXPR_META_KEY) != NFT_META_L4PROTO)
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+ /* may be 'ip protocol' or 'meta l4proto' with identical RHS */
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+ if (l4proto_expr_get_dreg(e, ®) < 0)
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goto next_expr;
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- reg = nftnl_expr_get_u32(e, NFTNL_EXPR_META_DREG);
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-
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e = nftnl_expr_iter_next(iter);
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if (!e)
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goto out;
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diff --git a/iptables/tests/shell/testcases/nft-only/0011-zero-needs-compat_0 b/iptables/tests/shell/testcases/nft-only/0011-zero-needs-compat_0
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new file mode 100755
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index 0000000..e276a95
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--- /dev/null
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+++ b/iptables/tests/shell/testcases/nft-only/0011-zero-needs-compat_0
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@@ -0,0 +1,12 @@
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+#!/bin/bash
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+
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+[[ $XT_MULTI == *xtables-nft-multi ]] || { echo "skip $XT_MULTI"; exit 0; }
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+
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+set -e
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+
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+rule="-p tcp -m tcp --dport 27374 -c 23 42 -j TPROXY --on-port 50080"
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+for cmd in iptables ip6tables; do
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+ $XT_MULTI $cmd -t mangle -A PREROUTING $rule
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+ $XT_MULTI $cmd -t mangle -Z
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+ $XT_MULTI $cmd -t mangle -v -S | grep -q -- "${rule/23 42/0 0}"
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+done
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43
0005-extensions-libxt_sctp-Add-an-extra-assert.patch
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43
0005-extensions-libxt_sctp-Add-an-extra-assert.patch
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@ -0,0 +1,43 @@
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From 6e4197dee5ff051f2daf1327faf1683fe350264f Mon Sep 17 00:00:00 2001
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From: Phil Sutter <psutter@redhat.com>
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Date: Wed, 12 Jun 2024 22:49:48 +0200
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Subject: [PATCH] extensions: libxt_sctp: Add an extra assert()
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JIRA: https://issues.redhat.com/browse/RHEL-40928
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Upstream Status: iptables commit 0234117d24609070f08ef36a11795c3c8e4c19bf
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commit 0234117d24609070f08ef36a11795c3c8e4c19bf
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Author: Phil Sutter <phil@nwl.cc>
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Date: Fri May 17 15:20:05 2024 +0200
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extensions: libxt_sctp: Add an extra assert()
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The code is sane, but this keeps popping up in static code analyzers.
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Signed-off-by: Phil Sutter <phil@nwl.cc>
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Signed-off-by: Phil Sutter <psutter@redhat.com>
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---
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extensions/libxt_sctp.c | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/extensions/libxt_sctp.c b/extensions/libxt_sctp.c
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index 6e2b274..e8312f0 100644
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--- a/extensions/libxt_sctp.c
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+++ b/extensions/libxt_sctp.c
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@@ -7,6 +7,7 @@
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* libipt_ecn.c borrowed heavily from libipt_dscp.c
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*
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*/
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+#include <assert.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <string.h>
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@@ -354,6 +355,7 @@ print_chunk_flags(uint32_t chunknum, uint8_t chunk_flags, uint8_t chunk_flags_ma
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for (i = 7; i >= 0; i--) {
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if (chunk_flags_mask & (1 << i)) {
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+ assert(chunknum < ARRAY_SIZE(sctp_chunk_names));
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if (chunk_flags & (1 << i)) {
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printf("%c", sctp_chunk_names[chunknum].valid_flags[7-i]);
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} else {
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@ -1,5 +1,5 @@
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%define iptables_rpmversion 1.8.10
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%define iptables_specrelease 2
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%define iptables_specrelease 3
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# install init scripts to /usr/libexec with systemd
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%global script_path %{_libexecdir}/iptables
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@ -36,6 +36,8 @@ Source11: iptables-test.stderr.expect
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Patch1: 0001-doc-Add-deprecation-notices-to-all-relevant-man-page.patch
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Patch2: 0002-extensions-SECMARK-Use-a-better-context-in-test-case.patch
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Patch3: 0003-ebtables-Fix-corner-case-noflush-restore-bug.patch
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Patch4: 0004-nft-Fix-for-broken-recover_rule_compat.patch
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Patch5: 0005-extensions-libxt_sctp-Add-an-extra-assert.patch
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# pf.os: ISC license
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# iptables-apply: Artistic 2.0
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@ -264,6 +266,21 @@ touch %{buildroot}%{_mandir}/man8/arptables-save.8
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touch %{buildroot}%{_mandir}/man8/arptables-restore.8
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touch %{buildroot}%{_mandir}/man8/ebtables.8
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# add symlinks for compatibility to merged extensions
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link_ext() { # (target, link)
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local targetfile="%{buildroot}%{_libdir}/xtables/${1}.so"
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local targetname="${1}.so"
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local link="%{buildroot}%{_libdir}/xtables/${2}.so"
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[[ -e "$link" ]] && return 0
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[[ -e "$targetfile" ]] || return 0
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ln -s $targetname $link
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}
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for fam in ip ip6; do
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link_ext libxt_LOG lib${fam}t_LOG
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link_ext libxt_NAT lib${fam}t_SNAT
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link_ext libxt_NAT lib${fam}t_MASQUERADE
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done
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%ldconfig_scriptlets
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%post legacy
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@ -438,6 +455,7 @@ fi
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%{_sbindir}/ip{,6}tables-nft*
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%{_sbindir}/ip{,6}tables{,-restore}-translate
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%{_sbindir}/{eb,arp}tables-nft*
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%{_sbindir}/ebtables-translate
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%{_sbindir}/xtables-nft-multi
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%{_sbindir}/xtables-monitor
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%dir %{_libdir}/xtables
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@ -451,9 +469,15 @@ fi
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%ghost %{_sbindir}/{eb,arp}tables{,-save,-restore}
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%ghost %{_libexecdir}/arptables-helper
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%ghost %{_mandir}/man8/arptables{,-save,-restore}.8.gz
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%ghost %{_mandir}/man8/ebtables.8.gz
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%ghost %{_mandir}/man8/ebtables{,-translate}.8.gz
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%changelog
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* Wed Jun 12 2024 Phil Sutter <psutter@redhat.com> [1.8.10-3.el9]
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- extensions: libxt_sctp: Add an extra assert() (Phil Sutter) [RHEL-40928]
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- spec: Add symlinks for merged extension DSOs (Phil Sutter) [RHEL-32463]
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- nft: Fix for broken recover_rule_compat() (Phil Sutter) [RHEL-26619]
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- spec: Ship ebtables-translate and man page (Phil Sutter) [RHEL-32922]
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* Tue Nov 07 2023 Phil Sutter <psutter@redhat.com> [1.8.10-2.el9]
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- ebtables: Fix corner-case noflush restore bug (Phil Sutter) [RHEL-14147]
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