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From 5a65f66ff803ad7ed15af958cc1efdde4d53dcb7 Mon Sep 17 00:00:00 2001
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From: Reid Wahl <nrwahl@protonmail.com>
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Date: Thu, 17 Feb 2022 03:53:21 -0800
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Subject: [PATCH] IPsrcaddr: Better error message when no matching route found
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If OCF_RESKEY_destination is not explicitly set and `ip route list`
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can't find a route matching the specifications, the NETWORK variable
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doesn't get set. This causes a certain failure of the start operation,
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because there is no PREFIX argument to `ip route replace` (syntax
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error). It may also cause unexpected behavior for stop operations (but
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not in all cases). During a monitor, this event can only happen if
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something has changed outside the cluster's control, and so is cause
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for warning there.
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Exit OCF_ERR_ARGS for start, log debug for probe, log warning for all
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other ops.
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Resolves: RHBZ#1654862
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Signed-off-by: Reid Wahl <nrwahl@protonmail.com>
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---
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heartbeat/IPsrcaddr | 14 ++++++++++++++
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1 file changed, 14 insertions(+)
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diff --git a/heartbeat/IPsrcaddr b/heartbeat/IPsrcaddr
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index fd7b6f68d..f0216722d 100755
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--- a/heartbeat/IPsrcaddr
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+++ b/heartbeat/IPsrcaddr
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@@ -549,6 +549,20 @@ rc=$?
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INTERFACE=`echo $findif_out | awk '{print $1}'`
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if [ "$OCF_RESKEY_destination" = "0.0.0.0/0" ] ;then
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NETWORK=`$IP2UTIL route list dev $INTERFACE scope link $PROTO match $ipaddress|grep -m 1 -o '^[^ ]*'`
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+
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+ if [ -z "$NETWORK" ]; then
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+ err_str="command '$IP2UTIL route list dev $INTERFACE scope link $PROTO"
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+ err_str="$err_str match $ipaddress' failed to find a matching route"
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+
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+ if [ "$__OCF_ACTION" = "start" ]; then
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+ ocf_exit_reason "$err_str"
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+ exit $OCF_ERR_ARGS
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+ elif ! ocf_is_probe; then
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+ ocf_log warn "$err_str"
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+ else
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+ ocf_log debug "$err_str"
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+ fi
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+ fi
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else
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NETWORK="$OCF_RESKEY_destination"
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fi
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