From a5af5690f0df9cb12fc46f8f14e4beba7c3aeae8 Mon Sep 17 00:00:00 2001

From: Vitaly Kuznetsov <vkuznets@redhat.com>

Date: Thu, 13 Aug 2020 08:43:58 +0200

Subject: Fix handling of gen2 disks with udev rules (#1954)

RH-Author: Vitaly Kuznetsov <vkuznets@redhat.com>

Message-id: <20200810082500.479999-1-vkuznets@redhat.com>

Patchwork-id: 98129

O-Subject: [RHEL8.3 WALinuxAgent PATCH] Fix handling of gen2 disks with udev rules (#1954)

Bugzilla: 1859037

RH-Acked-by: Cathy Avery <cavery@redhat.com>

RH-Acked-by: Mohammed Gamal <mgamal@redhat.com>

commit d33f1f810728dbe4e2891149936195d1ec7aaa27

Author: Thomas Stringer <thstring@microsoft.com>

Date:   Mon Jul 20 14:24:22 2020 -0400

    Fix handling of gen2 disks with udev rules (#1954)

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>

---

 config/66-azure-storage.rules | 40 +++++++++++++++++++++++-----------------

 1 file changed, 23 insertions(+), 17 deletions(-)

diff --git a/config/66-azure-storage.rules b/config/66-azure-storage.rules

index 5fb3693..cf94807 100644

--- a/config/66-azure-storage.rules

+++ b/config/66-azure-storage.rules

@@ -1,28 +1,34 @@

-ACTION=="add|change", SUBSYSTEM=="block", ENV{ID_VENDOR}=="Msft", ENV{ID_MODEL}=="Virtual_Disk", GOTO="azure_disk"

-GOTO="azure_end"

+# Azure specific rules.

+ACTION!="add|change", GOTO="walinuxagent_end"

+SUBSYSTEM!="block", GOTO="walinuxagent_end"

+ATTRS{ID_VENDOR}!="Msft", GOTO="walinuxagent_end"

+ATTRS{ID_MODEL}!="Virtual_Disk", GOTO="walinuxagent_end"

-LABEL="azure_disk"

-# Root has a GUID of 0000 as the second value

-# The resource/resource has GUID of 0001 as the second value

-ATTRS{device_id}=="?00000000-0000-*", ENV{fabric_name}="root", GOTO="azure_names"

-ATTRS{device_id}=="?00000000-0001-*", ENV{fabric_name}="resource", GOTO="azure_names"

-ATTRS{device_id}=="?00000001-0001-*", ENV{fabric_name}="BEK", GOTO="azure_names"

-# Wellknown SCSI controllers

+# Match the known ID parts for root and resource disks.

+ATTRS{device_id}=="?00000000-0000-*", ENV{fabric_name}="root", GOTO="wa_azure_names"

+ATTRS{device_id}=="?00000000-0001-*", ENV{fabric_name}="resource", GOTO="wa_azure_names"

+

+# Gen2 disk.

 ATTRS{device_id}=="{f8b3781a-1e82-4818-a1c3-63d806ec15bb}", ENV{fabric_scsi_controller}="scsi0", GOTO="azure_datadisk"

+# Create symlinks for data disks attached.

 ATTRS{device_id}=="{f8b3781b-1e82-4818-a1c3-63d806ec15bb}", ENV{fabric_scsi_controller}="scsi1", GOTO="azure_datadisk"

 ATTRS{device_id}=="{f8b3781c-1e82-4818-a1c3-63d806ec15bb}", ENV{fabric_scsi_controller}="scsi2", GOTO="azure_datadisk"

 ATTRS{device_id}=="{f8b3781d-1e82-4818-a1c3-63d806ec15bb}", ENV{fabric_scsi_controller}="scsi3", GOTO="azure_datadisk"

-GOTO="azure_end"

+GOTO="walinuxagent_end"

-# Retrieve LUN number for datadisks

+# Parse out the fabric n ame based off of scsi indicators.

 LABEL="azure_datadisk"

-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"

-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"

-GOTO="azure_end"

+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"

+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"

+

+ENV{fabric_name}=="scsi0/lun0", ENV{fabric_name}="root"

+ENV{fabric_name}=="scsi0/lun1", ENV{fabric_name}="resource"

+# Don't create a symlink for the cd-rom.

+ENV{fabric_name}=="scsi0/lun2", GOTO="walinuxagent_end"

-# Create the symlinks

-LABEL="azure_names"

+# Create the symlinks.

+LABEL="wa_azure_names"

 ENV{DEVTYPE}=="disk", SYMLINK+="disk/azure/$env{fabric_name}"

 ENV{DEVTYPE}=="partition", SYMLINK+="disk/azure/$env{fabric_name}-part%n"

-LABEL="azure_end"

+LABEL="walinuxagent_end"

-- 

1.8.3.1