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Apply upstream PR#2736

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Adds EXCLUDE_IP_ADDRESSES and EXCLUDE_NETWORK_INTERFACES configuration
parameters.

Resolves: rhbz2035939
This commit is contained in:
Pavel Cahyna 2022-02-22 10:16:10 +01:00
parent 0729a3dd1f
commit 3002b9a08f
2 changed files with 57 additions and 0 deletions
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56
rear-bz2035939.patch Normal file
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@ -0,0 +1,56 @@
diff --git a/usr/share/rear/conf/default.conf b/usr/share/rear/conf/default.conf
index 0c230f38..f231bf3d 100644
--- a/usr/share/rear/conf/default.conf
+++ b/usr/share/rear/conf/default.conf
@@ -2707,6 +2707,15 @@ WARN_MISSING_VOL_ID=1
USE_CFG2HTML=
# The SKIP_CFG2HTML variable is no longer supported since ReaR 1.18
+# IP addresses that are present on the system but must be excluded when
+# building the network configuration used in recovery mode; this is typically
+# used when floating IP addresses are used on the system
+EXCLUDE_IP_ADDRESSES=()
+
+# Network interfaces that are present on the system but must be excluded when
+# building the network configuration used in recovery mode
+EXCLUDE_NETWORK_INTERFACES=()
+
# Simplify bonding setups by configuring always the first active device of a
# bond, except when mode is 4 (IEEE 802.3ad policy)
SIMPLIFY_BONDING=no
diff --git a/usr/share/rear/rescue/GNU/Linux/310_network_devices.sh b/usr/share/rear/rescue/GNU/Linux/310_network_devices.sh
index f806bfbf..2385f5b6 100644
--- a/usr/share/rear/rescue/GNU/Linux/310_network_devices.sh
+++ b/usr/share/rear/rescue/GNU/Linux/310_network_devices.sh
@@ -355,6 +355,11 @@ function is_interface_up () {
local network_interface=$1
local sysfspath=/sys/class/net/$network_interface
+ if IsInArray "$network_interface" "${EXCLUDE_NETWORK_INTERFACES[@]}"; then
+ LogPrint "Excluding '$network_interface' per EXCLUDE_NETWORK_INTERFACES directive."
+ return 1
+ fi
+
local state=$( cat $sysfspath/operstate )
if [ "$state" = "down" ] ; then
return 1
@@ -403,11 +408,19 @@ function ipaddr_setup () {
if [ -n "$ipaddrs" ] ; then
# If some IP is found for the network interface, then use them
for ipaddr in $ipaddrs ; do
+ if IsInArray "${ipaddr%%/*}" "${EXCLUDE_IP_ADDRESSES[@]}"; then
+ LogPrint "Excluding IP address '$ipaddr' per EXCLUDE_IP_ADDRESSES directive even through it's defined in mapping file '$CONFIG_DIR/mappings/ip_addresses'."
+ continue
+ fi
echo "ip addr add $ipaddr dev $mapped_as"
done
else
# Otherwise, collect IP addresses for the network interface on the system
for ipaddr in $( ip a show dev $network_interface scope global | grep "inet.*\ " | tr -s " " | cut -d " " -f 3 ) ; do
+ if IsInArray "${ipaddr%%/*}" "${EXCLUDE_IP_ADDRESSES[@]}"; then
+ LogPrint "Excluding IP address '$ipaddr' per EXCLUDE_IP_ADDRESSES directive."
+ continue
+ fi
echo "ip addr add $ipaddr dev $mapped_as"
done
fi

1
rear.spec
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@ -28,6 +28,7 @@ Patch37: rear-bz1747468.patch
Patch38: rear-bz2049091.patch
Patch39: rear-pr2675.patch
Patch40: rear-bz2048454.patch
Patch41: rear-bz2035939.patch
# rear contains only bash scripts plus documentation so that on first glance it could be "BuildArch: noarch"
# but actually it is not "noarch" because it only works on those architectures that are explicitly supported.