parent
d1df2d1558
commit
e1614f3410
6
.gitignore
vendored
6
.gitignore
vendored
@ -1,3 +1,3 @@
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/chrony-4.2.tar.gz
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/chrony-4.2-tar-gz-asc.txt
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/clknetsim-824c48.tar.gz
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/chrony-4.3.tar.gz
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/chrony-4.3-tar-gz-asc.txt
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/clknetsim-f00531.tar.gz
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@ -1,146 +1,3 @@
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commit 5bd13c8d593a74ad168057efe94dd2b3aeeffe14
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Author: Miroslav Lichvar <mlichvar@redhat.com>
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Date: Mon Feb 7 13:27:25 2022 +0100
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examples: support DHCPv6 NTP servers in NM dispatcher script
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Latest NetworkManager code provides NTP servers from the DHCPv6 NTP
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option (RFC 5908) in the DHCP6_DHCP6_NTP_SERVERS variable to dispatcher
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scripts.
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Check for invalid characters (which can come from the FQDN suboption)
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and include the servers in the interface-specific sources file.
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diff --git a/examples/chrony.nm-dispatcher.dhcp b/examples/chrony.nm-dispatcher.dhcp
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index 6ea4c370..4454f037 100644
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--- a/examples/chrony.nm-dispatcher.dhcp
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+++ b/examples/chrony.nm-dispatcher.dhcp
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@@ -1,8 +1,7 @@
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#!/bin/sh
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# This is a NetworkManager dispatcher script for chronyd to update
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-# its NTP sources passed from DHCP options. Note that this script is
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-# specific to NetworkManager-dispatcher due to use of the
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-# DHCP4_NTP_SERVERS environment variable.
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+# its NTP sources with servers from DHCP options passed by NetworkManager
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+# in the DHCP4_NTP_SERVERS and DHCP6_DHCP6_NTP_SERVERS environment variables.
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export LC_ALL=C
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@@ -10,17 +9,19 @@ interface=$1
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action=$2
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chronyc=/usr/bin/chronyc
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-default_server_options=iburst
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+server_options=iburst
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server_dir=/var/run/chrony-dhcp
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dhcp_server_file=$server_dir/$interface.sources
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-# DHCP4_NTP_SERVERS is passed from DHCP options by NetworkManager.
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-nm_dhcp_servers=$DHCP4_NTP_SERVERS
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+dhcp_ntp_servers="$DHCP4_NTP_SERVERS $DHCP6_DHCP6_NTP_SERVERS"
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add_servers_from_dhcp() {
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rm -f "$dhcp_server_file"
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- for server in $nm_dhcp_servers; do
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- echo "server $server $default_server_options" >> "$dhcp_server_file"
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+ for server in $dhcp_ntp_servers; do
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+ # Check for invalid characters (from the DHCPv6 NTP FQDN suboption)
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+ printf '%s\n' "$server" | grep -E -q '^[-A-Za-z0-9:.]{1,255}$' || continue
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+
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+ printf 'server %s %s\n' "$server" "$server_options" >> "$dhcp_server_file"
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done
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$chronyc reload sources > /dev/null 2>&1 || :
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}
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@@ -34,10 +35,11 @@ clear_servers_from_dhcp() {
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mkdir -p $server_dir
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-if [ "$action" = "up" ] || [ "$action" = "dhcp4-change" ]; then
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- add_servers_from_dhcp
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-elif [ "$action" = "down" ]; then
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- clear_servers_from_dhcp
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-fi
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+case "$action" in
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+ up|dhcp4-change|dhcp6-change)
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+ add_servers_from_dhcp;;
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+ down)
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+ clear_servers_from_dhcp;;
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+esac
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exit 0
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commit e55f174bd3a7ae82fb24afd43443d0b55d5536cf
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Author: Miroslav Lichvar <mlichvar@redhat.com>
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Date: Mon Feb 7 13:27:48 2022 +0100
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examples: handle more actions in NM dispatcher script
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Run the chronyc onoffline command also when the connectivity-change
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and dhcp6-change actions are reported by the NetworkManager dispatcher.
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The latter should not be necessary, but there currently doesn't seem to
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be any action for IPv6 becoming routable after duplicate address
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detection, so at least in networks using DHCPv6, IPv6 NTP servers should
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not be stuck in the offline state from a previously reported action.
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diff --git a/examples/chrony.nm-dispatcher.onoffline b/examples/chrony.nm-dispatcher.onoffline
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index 34cfa0db..01e6fdb1 100644
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--- a/examples/chrony.nm-dispatcher.onoffline
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+++ b/examples/chrony.nm-dispatcher.onoffline
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@@ -7,8 +7,18 @@ export LC_ALL=C
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chronyc=/usr/bin/chronyc
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-# For NetworkManager consider only up/down events
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-[ $# -ge 2 ] && [ "$2" != "up" ] && [ "$2" != "down" ] && exit 0
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+# For NetworkManager consider only selected events
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+if [ $# -ge 2 ]; then
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+ case "$2" in
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+ up|down|connectivity-change)
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+ ;;
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+ dhcp6-change)
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+ # No other action is reported for routable IPv6
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+ ;;
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+ *)
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+ exit 0;;
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+ esac
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+fi
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# Note: for networkd-dispatcher routable.d ~= on and off.d ~= off
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commit fca8966adaaf8376536af86ba2afe02501463588
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Author: Miroslav Lichvar <mlichvar@redhat.com>
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Date: Wed Mar 23 15:17:03 2022 +0100
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examples: replace grep command in NM dispatcher script
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Some grep implementations detect binary data and return success without
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matching whole line. This might be an issue for the DHCPv6 NTP FQDN
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check. The GNU grep in the C locale seems to check only for the NUL
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character, which cannot be passed in an environment variable, but other
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implementations might behave differently and there doesn't seem to be a
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portable way to force matching the whole line.
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Instead of the grep command, check for invalid characters by comparing
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the length of the input passed through "tr -d -c".
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diff --git a/examples/chrony.nm-dispatcher.dhcp b/examples/chrony.nm-dispatcher.dhcp
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index 4454f037..547ce83f 100644
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--- a/examples/chrony.nm-dispatcher.dhcp
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+++ b/examples/chrony.nm-dispatcher.dhcp
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@@ -19,7 +19,11 @@ add_servers_from_dhcp() {
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rm -f "$dhcp_server_file"
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for server in $dhcp_ntp_servers; do
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# Check for invalid characters (from the DHCPv6 NTP FQDN suboption)
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- printf '%s\n' "$server" | grep -E -q '^[-A-Za-z0-9:.]{1,255}$' || continue
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+ len1=$(printf '%s' "$server" | wc -c)
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+ len2=$(printf '%s' "$server" | tr -d -c 'A-Za-z0-9:.-' | wc -c)
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+ if [ "$len1" -ne "$len2" ] || [ "$len2" -lt 1 ] || [ "$len2" -gt 255 ]; then
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+ continue
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+ fi
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printf 'server %s %s\n' "$server" "$server_options" >> "$dhcp_server_file"
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done
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From: Robert Fairley <rfairley@redhat.com>
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Date: Wed, 17 Jun 2020 10:14:19 -0400
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Subject: [PATCH] examples/nm-dispatcher.dhcp: use sysconfig
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commit 8bb8f15a7d049ed26c69d95087065b381f76ec4d
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Author: Michael Hudson-Doyle <michael.hudson@canonical.com>
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Date: Wed Feb 9 09:06:13 2022 +0100
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sys_linux: allow rseq in seccomp filter
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Libc 2.35 will use rseq syscalls [1][2] by default and thereby
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break chrony in seccomp isolation.
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[1]: https://www.efficios.com/blog/2019/02/08/linux-restartable-sequences/
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[2]: https://sourceware.org/pipermail/libc-alpha/2022-February/136040.html
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Tested-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
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Reviewed-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
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Signed-off-by: Michael Hudson-Doyle <michael.hudson@canonical.com>
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Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
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diff --git a/sys_linux.c b/sys_linux.c
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index 9cab2efa..cc3c9311 100644
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--- a/sys_linux.c
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+++ b/sys_linux.c
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@@ -497,6 +497,9 @@ SYS_Linux_EnableSystemCallFilter(int level, SYS_ProcessContext context)
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SCMP_SYS(getrlimit),
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SCMP_SYS(getuid),
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SCMP_SYS(getuid32),
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+#ifdef __NR_rseq
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+ SCMP_SYS(rseq),
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+#endif
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SCMP_SYS(rt_sigaction),
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SCMP_SYS(rt_sigreturn),
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SCMP_SYS(rt_sigprocmask),
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@ -1,5 +1,5 @@
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%global _hardened_build 1
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%global clknetsim_ver 824c48
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%global clknetsim_ver f00531
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%bcond_without debug
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%bcond_without nts
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@ -8,7 +8,7 @@
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%endif
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Name: chrony
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Version: 4.2
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Version: 4.3
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Release: 1%{?dist}
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Summary: An NTP client/server
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@ -23,10 +23,8 @@ Source4: chrony.sysusers
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Source10: https://github.com/mlichvar/clknetsim/archive/%{clknetsim_ver}/clknetsim-%{clknetsim_ver}.tar.gz
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%{?gitpatch:Patch0: chrony-%{version}%{?prerelease}-%{gitpatch}.patch.gz}
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# add IPv6 support and distribution-specific bits to DHCP dispatcher
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# add distribution-specific bits to DHCP dispatcher
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Patch1: chrony-nm-dispatcher-dhcp.patch
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# update seccomp filter for new glibc
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Patch2: chrony-seccomp.patch
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# revert some hardening options in service files
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Patch3: chrony-services.patch
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@ -60,7 +58,6 @@ service to other computers in the network.
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%setup -q -n %{name}-%{version}%{?prerelease} -a 10
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%{?gitpatch:%patch0 -p1}
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%patch1 -p1 -b .nm-dispatcher-dhcp
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%patch2 -p1 -b .seccomp
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%patch3 -p1 -b .services
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%{?gitpatch: echo %{version}-%{gitpatch} > version.txt}
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|
6
sources
6
sources
@ -1,3 +1,3 @@
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SHA512 (chrony-4.2.tar.gz) = 7f946b27de605b3ebea62cf23916dfad77c99e8b2338ba239ede6b8216ce436b3d4d87770f371c8d8e006507c51d5c831b51f067957abd2935adfdec3f5aa67d
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SHA512 (chrony-4.2-tar-gz-asc.txt) = d8ae4b540ce3529a5a72e10c14765a33ca6fc41529b6fdc9928fb171f25bd6fb87f930b7783638892f42f4cbcfaab4cb1064c930bae1d5204a71babad72b6e10
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SHA512 (clknetsim-824c48.tar.gz) = df682f3105c8fbc8da558fa0f17011eb1125c8383179dbc81002a249ca95b7940b46f0dd7562ede44f5ba095be897e6e77d0c99ff2ad7d317217154e1265606f
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SHA512 (chrony-4.3.tar.gz) = 1394bac3ed684352fe89b7fef7da50e61f9f522abee807627ae1fc4c2dde891017bc8e5b13759fced028f3a1e875d5e4e5a4f85de65c63b5f83d0ca03bb4c5df
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SHA512 (chrony-4.3-tar-gz-asc.txt) = 300b06f253ac3727edb86a1b7c337f9529ee752bbb471b266217b6a8ac5183e827264177a3210d436425d746673bf11fbdc41da145673213e28165197c6c76b7
|
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SHA512 (clknetsim-f00531.tar.gz) = a44f543574519d1d5b5778f91b88fc73a976de511b97011c8ff3bc61a7ebff868fe9c6b46947ff4b58b29bd45520ffa68147934b1d289b1ffada4a329c048df5
|
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|
Loading…
Reference in New Issue
Block a user