forked from pool/iptables
iptables-1.6.2
OBS-URL: https://build.opensuse.org/package/show/security:netfilter/iptables?expand=0&rev=94
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1926c173b5
commit
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@ -1,3 +0,0 @@
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version https://git-lfs.github.com/spec/v1
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oid sha256:0fc2d7bd5d7be11311726466789d4c65fb4c8e096c9182b56ce97440864f0cf5
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size 620890
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Binary file not shown.
3
iptables-1.6.2.tar.bz2
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3
iptables-1.6.2.tar.bz2
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version https://git-lfs.github.com/spec/v1
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oid sha256:55d02dfa46263343a401f297d44190f2a3e5113c8933946f094ed40237053733
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size 639785
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BIN
iptables-1.6.2.tar.bz2.sig
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BIN
iptables-1.6.2.tar.bz2.sig
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@ -1,70 +1,67 @@
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Index: iptables-1.6.1/iptables/iptables-batch.c
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---
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iptables/iptables-batch.c | 21 +++++++++++++++++++++
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iptables/xshared.c | 8 +++++++-
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2 files changed, 28 insertions(+), 1 deletion(-)
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Index: iptables-1.6.2/iptables/iptables-batch.c
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===================================================================
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--- iptables-1.6.1.orig/iptables/iptables-batch.c
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+++ iptables-1.6.1/iptables/iptables-batch.c
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@@ -404,6 +404,34 @@ main(int argc, char *argv[])
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--- iptables-1.6.2.orig/iptables/iptables-batch.c
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+++ iptables-1.6.2/iptables/iptables-batch.c
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@@ -403,6 +403,27 @@ main(int argc, char *argv[])
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tables[3].name = "raw";
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tables[3].handle = NULL;
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current_table = &tables[0];
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+ /*
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+ * we need to lock the complete batch processing against parallel
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+ * modification by other processes. Otherwise we can end up with
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+ * We need to lock the complete batch processing against parallel
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+ * modification by other processes. Otherwise, we can end up with
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+ * EAGAIN errors.
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+ *
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+ * the do_command{4,6} function already locks itself, but the
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+ * complete call sequence needs to be locked until the commit is
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+ * performed.
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+ * The do_command{4,6} function already locks itself, but the complete
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+ * call sequence needs to be locked until the commit is performed.
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+ *
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+ * sadly the xtables_lock() implementation is not very cooperative.
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+ * There's no unlock() equivalent. The lock file descriptor is smiply
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+ * left open until the process exits. Thus we'd have deadlocks when
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+ * calling do_command{4,6} the second time.
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+ * Sadly, the xtables_lock() implementation is not very cooperative.
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+ * There is no unlock() equivalent. The lock file descriptor is smiply
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+ * left open until the process exits. Thus, we would have deadlocks
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+ * when calling do_command{4,6} the second time.
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+ *
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+ * To prevent this, part of this patch adds logic to avoid taking the
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+ * lock a second time in the same process in xtables_lock()
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+ */
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+
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+ const struct timeval wait_interval = {
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+ .tv_sec = 1,
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+ };
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+
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+ if( xtables_lock(-1, &wait_interval) != true )
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+ {
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+ const struct timeval wait_interval = {.tv_sec = 1};
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+ if (!xtables_lock_or_exit(-1, &wait_interval)) {
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+ fprintf(stderr, "failed to acquire the xtables lock\n");
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+ exit(1);
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+ }
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+
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while((r = getline(&iline, &llen, fp)) != -1)
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{
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if(llen < 1 || !*iline)
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Index: iptables-1.6.1/iptables/xshared.c
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Index: iptables-1.6.2/iptables/xshared.c
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===================================================================
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--- iptables-1.6.1.orig/iptables/xshared.c
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+++ iptables-1.6.1/iptables/xshared.c
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@@ -250,8 +250,14 @@ void xs_init_match(struct xtables_match
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bool xtables_lock(int wait, struct timeval *wait_interval)
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--- iptables-1.6.2.orig/iptables/xshared.c
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+++ iptables-1.6.2/iptables/xshared.c
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@@ -248,9 +248,13 @@ void xs_init_match(struct xtables_match
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static int xtables_lock(int wait, struct timeval *wait_interval)
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{
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struct timeval time_left, wait_time, waited_time;
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+ static bool already_locked = false;
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struct timeval time_left, wait_time;
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int fd, i = 0;
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+ if( already_locked ) {
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+ // avoid dead-locks, see iptables-batch.c
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+ if (already_locked)
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+ /* Avoid deadlocks, see iptables-batch.c */
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+ return true;
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+ }
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+
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time_left.tv_sec = wait;
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time_left.tv_usec = 0;
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waited_time.tv_sec = 0;
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@@ -262,8 +268,10 @@ bool xtables_lock(int wait, struct timev
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return true;
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while (1) {
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- if (flock(fd, LOCK_EX | LOCK_NB) == 0)
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+ if (flock(fd, LOCK_EX | LOCK_NB) == 0) {
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@@ -262,8 +266,10 @@ static int xtables_lock(int wait, struct
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}
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if (wait == -1) {
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- if (flock(fd, LOCK_EX) == 0)
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+ if (flock(fd, LOCK_EX) == 0) {
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+ already_locked = true;
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return true;
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return fd;
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+ }
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if (++i % 10 == 0) {
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if (wait != -1)
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fprintf(stderr, "Another app is currently holding the xtables lock; "
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fprintf(stderr, "Can't lock %s: %s\n", XT_LOCK_NAME,
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strerror(errno));
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@ -1,3 +1,11 @@
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-------------------------------------------------------------------
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Sat Feb 3 14:02:59 UTC 2018 - jengelh@inai.de
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- Update to new upstream release 1.6.2
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* add support for the "srh" match
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* add randomize-full for the "MASQUERADE" target
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* add rate match mode to the "hashlimit" match
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-------------------------------------------------------------------
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Thu Jun 22 15:34:40 UTC 2017 - matthias.gerstner@suse.com
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@ -1,7 +1,7 @@
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#
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# spec file for package iptables
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#
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# Copyright (c) 2017 SUSE LINUX GmbH, Nuernberg, Germany.
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# Copyright (c) 2018 SUSE LINUX GmbH, Nuernberg, Germany.
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#
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# All modifications and additions to the file contributed by third parties
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# remain the property of their copyright owners, unless otherwise agreed
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@ -17,12 +17,13 @@
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Name: iptables
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Version: 1.6.1
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Version: 1.6.2
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Release: 0
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Summary: IP Packet Filter Administration utilities
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Summary: IP packet filter administration utilities
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License: GPL-2.0 and Artistic-2.0
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Group: Productivity/Networking/Security
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Url: http://netfilter.org/projects/iptables/
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#Git-Clone: git://git.netfilter.org/iptables
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Source: http://netfilter.org/projects/iptables/files/%name-%version.tar.bz2
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Source2: http://netfilter.org/projects/iptables/files/%name-%version.tar.bz2.sig
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Source3: %name.keyring
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@ -55,19 +56,19 @@ the classic "ip6_tables" and "ip_tables" packet filters in the Linux
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kernel.
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%package nft
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Summary: NFT Packet Filter Administration utilties in the style of Xtables
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Summary: nft packet filter administration utilties in the style of Xtables
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Group: Productivity/Networking/Security
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Requires: xtables-plugins = %version-%release
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Conflicts: ebtables
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%description nft
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The programs shipped in this subpackage behave like iptables on the
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command line, but instead edit the rules of the NFT packet filter in
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command line, but instead edits the rules of the nft packet filter in
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the Linux kernel. Linux kernel 4.2 or newer is recommended to exploit
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all features.
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the features.
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%package -n xtables-plugins
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Summary: Match and Target Extension plugins for iptables
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Summary: Match and target extension plugins for iptables
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Group: Productivity/Networking/Security
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Conflicts: iptables < 1.4.18
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@ -128,7 +129,7 @@ ip6tables, their extensions, and for external integration for e.g.
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iproute2's m_xt.
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%package -n libxtables-devel
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Summary: Libraries, Headers and Development Man Pages for iptables
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Summary: Headers and manpages for iptables
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Group: Development/Libraries/C and C++
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Requires: libxtables12 = %version
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@ -147,7 +148,7 @@ xtables --variable=xtlibdir).
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%build
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# We have the iptables-batch patch, so always regenerate.
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if true || [ ! -e configure ]; then
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./autogen.sh;
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./autogen.sh
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fi
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# bnc#561793 - do not include unclean module in iptables manpage
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rm -f extensions/libipt_unclean.man
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@ -161,7 +162,7 @@ make DESTDIR=%buildroot install
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# iptables-apply is not installed by upstream Makefile
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install -m0755 iptables/iptables-apply %buildroot%_sbindir/
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install -m0644 iptables/iptables-apply.8 %buildroot%_mandir/man8/
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rm -f "%buildroot/%_libdir"/*.la;
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rm -f "%buildroot/%_libdir"/*.la
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%if 0%{?suse_version}
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%fdupes %buildroot/%_prefix
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%endif
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@ -200,6 +201,7 @@ rm -f "%buildroot/%_libdir"/*.la;
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%defattr(-,root,root)
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%_libdir/xtables/
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%_sbindir/nfnl_osf
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%_mandir/man8/nfnl_osf.8*
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%_datadir/xtables/
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%files -n libipq0
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