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From f5ae5815bce7a1e10188bdbbb0277d0ae79cafe2 Mon Sep 17 00:00:00 2001
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From: Vitaly Kuznetsov <vkuznets@redhat.com>
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Date: Thu, 13 Aug 2020 08:43:58 +0200
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Subject: [PATCH] Fix handling of gen2 disks with udev rules (#1954)
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RH-Author: Vitaly Kuznetsov <vkuznets@redhat.com>
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Message-id: <20200810082500.479999-1-vkuznets@redhat.com>
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Patchwork-id: 98129
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O-Subject: [RHEL8.3 WALinuxAgent PATCH] Fix handling of gen2 disks with udev rules (#1954)
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Bugzilla: 1859037
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RH-Acked-by: Cathy Avery <cavery@redhat.com>
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RH-Acked-by: Mohammed Gamal <mgamal@redhat.com>
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commit d33f1f810728dbe4e2891149936195d1ec7aaa27
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Author: Thomas Stringer <thstring@microsoft.com>
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Date: Mon Jul 20 14:24:22 2020 -0400
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Fix handling of gen2 disks with udev rules (#1954)
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Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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config/66-azure-storage.rules | 40 +++++++++++++++++++++++-----------------
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1 file changed, 23 insertions(+), 17 deletions(-)
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diff --git a/config/66-azure-storage.rules b/config/66-azure-storage.rules
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index 5fb3693..cf94807 100644
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--- a/config/66-azure-storage.rules
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+++ b/config/66-azure-storage.rules
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@@ -1,28 +1,34 @@
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-ACTION=="add|change", SUBSYSTEM=="block", ENV{ID_VENDOR}=="Msft", ENV{ID_MODEL}=="Virtual_Disk", GOTO="azure_disk"
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-GOTO="azure_end"
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+# Azure specific rules.
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+ACTION!="add|change", GOTO="walinuxagent_end"
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+SUBSYSTEM!="block", GOTO="walinuxagent_end"
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+ATTRS{ID_VENDOR}!="Msft", GOTO="walinuxagent_end"
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+ATTRS{ID_MODEL}!="Virtual_Disk", GOTO="walinuxagent_end"
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-LABEL="azure_disk"
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-# Root has a GUID of 0000 as the second value
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-# The resource/resource has GUID of 0001 as the second value
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-ATTRS{device_id}=="?00000000-0000-*", ENV{fabric_name}="root", GOTO="azure_names"
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-ATTRS{device_id}=="?00000000-0001-*", ENV{fabric_name}="resource", GOTO="azure_names"
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-ATTRS{device_id}=="?00000001-0001-*", ENV{fabric_name}="BEK", GOTO="azure_names"
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-# Wellknown SCSI controllers
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+# Match the known ID parts for root and resource disks.
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+ATTRS{device_id}=="?00000000-0000-*", ENV{fabric_name}="root", GOTO="wa_azure_names"
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+ATTRS{device_id}=="?00000000-0001-*", ENV{fabric_name}="resource", GOTO="wa_azure_names"
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+
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+# Gen2 disk.
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ATTRS{device_id}=="{f8b3781a-1e82-4818-a1c3-63d806ec15bb}", ENV{fabric_scsi_controller}="scsi0", GOTO="azure_datadisk"
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+# Create symlinks for data disks attached.
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ATTRS{device_id}=="{f8b3781b-1e82-4818-a1c3-63d806ec15bb}", ENV{fabric_scsi_controller}="scsi1", GOTO="azure_datadisk"
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ATTRS{device_id}=="{f8b3781c-1e82-4818-a1c3-63d806ec15bb}", ENV{fabric_scsi_controller}="scsi2", GOTO="azure_datadisk"
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ATTRS{device_id}=="{f8b3781d-1e82-4818-a1c3-63d806ec15bb}", ENV{fabric_scsi_controller}="scsi3", GOTO="azure_datadisk"
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-GOTO="azure_end"
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+GOTO="walinuxagent_end"
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-# Retrieve LUN number for datadisks
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+# Parse out the fabric n ame based off of scsi indicators.
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LABEL="azure_datadisk"
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-ENV{DEVTYPE}=="partition", PROGRAM="/bin/sh -c 'readlink /sys/class/block/%k/../device|cut -d: -f4'", ENV{fabric_name}="$env{fabric_scsi_controller}/lun$result", GOTO="azure_names"
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-PROGRAM="/bin/sh -c 'readlink /sys/class/block/%k/device|cut -d: -f4'", ENV{fabric_name}="$env{fabric_scsi_controller}/lun$result", GOTO="azure_names"
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-GOTO="azure_end"
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+ENV{DEVTYPE}=="partition", PROGRAM="/bin/sh -c 'readlink /sys/class/block/%k/../device|cut -d: -f4'", ENV{fabric_name}="$env{fabric_scsi_controller}/lun$result"
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+ENV{DEVTYPE}=="disk", PROGRAM="/bin/sh -c 'readlink /sys/class/block/%k/device|cut -d: -f4'", ENV{fabric_name}="$env{fabric_scsi_controller}/lun$result"
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+
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+ENV{fabric_name}=="scsi0/lun0", ENV{fabric_name}="root"
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+ENV{fabric_name}=="scsi0/lun1", ENV{fabric_name}="resource"
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+# Don't create a symlink for the cd-rom.
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+ENV{fabric_name}=="scsi0/lun2", GOTO="walinuxagent_end"
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-# Create the symlinks
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-LABEL="azure_names"
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+# Create the symlinks.
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+LABEL="wa_azure_names"
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ENV{DEVTYPE}=="disk", SYMLINK+="disk/azure/$env{fabric_name}"
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ENV{DEVTYPE}=="partition", SYMLINK+="disk/azure/$env{fabric_name}-part%n"
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-LABEL="azure_end"
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+LABEL="walinuxagent_end"
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--
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1.8.3.1
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