Add support for IPv6 and https to anaconda-preexec

The anaconda-preexec script runs ahead of Anaconda to cache the IP
address of the network boot server in the /etc/hosts file, to avoid
further DNS queries during installation.

This update extends the checks to add support for IPv6 and to allow
for https network access.

Change-Id: Iadc86cbf971d6ecb0c478a2a16d5040d18a82ef0
Story: 2006980
Task: 38728
Signed-off-by: Don Penney <don.penney@windriver.com>

base/anaconda/centos/build_srpm.data

@@ -1 +1 @@
-TIS_PATCH_VER=6
+TIS_PATCH_VER=7

base/anaconda/centos/meta_patches/0006-Add-support-for-https-and-IPv6-to-anaconda-preexec.patch

@@ -0,0 +1,47 @@
+From 9a2fa4a719df870296f8559bbf775696b49847c5 Mon Sep 17 00:00:00 2001
+From: Don Penney <don.penney@windriver.com>
+Date: Fri, 7 Feb 2020 14:09:28 -0500
+Subject: [PATCH] Add support for https and IPv6 to anaconda-preexec
+
+Include the source patch that adds support for https and IPv6.
+
+Signed-off-by: Don Penney <don.penney@windriver.com>
+---
+ SPECS/anaconda.spec | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+diff --git a/SPECS/anaconda.spec b/SPECS/anaconda.spec
+index c482f38..8fea2fa 100644
+--- a/SPECS/anaconda.spec
++++ b/SPECS/anaconda.spec
+@@ -24,11 +24,12 @@ Patch8: 9800-rpmostreepayload-Rework-remote-add-handling.patch
+ Patch9: yumpayload-dont-verify-disabled-repos.patch
+ Patch10: anaconda-centos-armhfp-extloader.patch
+ 
+-# WRS
++# StarlingX
+ Patch10001: 0001-TIS-Progress-and-error-handling.patch
+ Patch10002: 0002-revert-7.4-grub2-efi-handling.patch
+ Patch10003: 0003-Set-default-hostname-to-localhost.patch
+ Patch10004: 0004-Cache-server-ip-in-etc-hosts.patch
++Patch10005: 0005-Add-support-for-IPv6-and-https-to-anaconda-preexec.patch
+ 
+ # Versions of required components (done so we make sure the buildrequires
+ # match the requires versions of things).
+@@ -256,11 +257,12 @@ runtime on NFS/HTTP/FTP servers or local disks.
+ %patch10 -p1
+ %endif
+ 
+-# WRS
++# StarlingX
+ %patch10001 -p1
+ %patch10002 -p1
+ %patch10003 -p1
+ %patch10004 -p1
++%patch10005 -p1
+ 
+ %build
+ %configure --disable-static \
+-- 
+1.8.3.1
+

base/anaconda/centos/meta_patches/PATCH_ORDER

@@ -3,3 +3,4 @@
 0003-revert-7.4-grub2-efi-handling.patch
 0004-Upversion-rpm-devel-dependency.patch
 0005-Add-TIS-patches-for-host-lookup.patch
+0006-Add-support-for-https-and-IPv6-to-anaconda-preexec.patch

base/anaconda/centos/patches/0005-Add-support-for-IPv6-and-https-to-anaconda-preexec.patch

@@ -0,0 +1,113 @@
+From fbf22f153f415b1dfed1f01879c22b15ac030652 Mon Sep 17 00:00:00 2001
+From: Don Penney <don.penney@windriver.com>
+Date: Mon, 10 Feb 2020 20:00:19 -0500
+Subject: [PATCH] Add support for IPv6 and https to anaconda-preexec
+
+The anaconda-preexec script runs ahead of Anaconda to cache the IP
+address of the network boot server in the /etc/hosts file, to avoid
+further DNS queries during installation.
+
+This update extends the checks to add support for IPv6 and to allow
+for https network access.
+
+Signed-off-by: Don Penney <don.penney@windriver.com>
+---
+ scripts/anaconda-preexec | 69 +++++++++++++++++++++++++++++++-----------------
+ 1 file changed, 45 insertions(+), 24 deletions(-)
+
+diff --git a/scripts/anaconda-preexec b/scripts/anaconda-preexec
+index d491173..22e6833 100644
+--- a/scripts/anaconda-preexec
++++ b/scripts/anaconda-preexec
+@@ -1,6 +1,6 @@
+ #!/bin/bash
+ #
+-# Copyright (c) 2017 Wind River Systems, Inc.
++# Copyright (c) 2017-2019 Wind River Systems, Inc.
+ # SPDX-License-Identifier: Apache-2.0
+ #
+ #
+@@ -14,36 +14,57 @@ set -x
+ function get_ip()
+ {
+     local host=$1
++    local host_ip=
+ 
+     # Try the DNS query
+-    host -t A $host | awk '{print $4}' | grep '^[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*$' | head -1
++    host_ip=$(host -t A $host | awk '{print $4}' | grep '^[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*$' | head -1)
++
++    if [ -z "${host_ip}" ]; then
++        # Check for IPv6
++        host_ip=$(host -t AAAA $host | grep 'has IPv6 address' | awk '{print $5}')
++    fi
++
++    echo -n ${host_ip}
++}
++
++function get_server()
++{
++    # Check for http/https first
++    cat /proc/cmdline | grep -q 'inst\.ks=http'
++    if [ $? -ne 0 ]; then
++        return
++    fi
++
++    local server_and_port=
++    server_and_port=$(cat /proc/cmdline | sed -r 's#.*inst\.ks=https*://([^/]*)/.*#\1#')
++
++    echo "${server_and_port}" | grep -q '^\['
++    if [ $? -eq 0 ]; then
++        echo "${server_and_port}" | sed -r 's#.*\[(.*)\].*#\1#'
++    else
++        echo "${server_and_port}" | sed -r 's#([^/:]*)(:[^/]*)?#\1#'
++    fi
+ }
+ 
+ # If the kickstart is net-based, wait for connectivity to server
+-cat /proc/cmdline | grep -q 'inst\.ks=http://'
+-if [ $? -eq 0 ]
++server=$(get_server)
++if [ -n "$server" ]
+ then
+-    server=$(cat /proc/cmdline | sed -r 's#.*inst\.ks=http://([^/:]*)(:[^/]*)?/.*#\1#')
+-    if [ -n "$server" ]
+-    then
+-        echo "Testing connectivity to server: $server"
+-        let -i ping_count=0
+-        ping -c 1 -w 60 $server
+-        while [ $? -ne 0 -a $ping_count -lt 600 ]
+-        do
+-            echo "Waiting for connectivity to server: $server"
+-            sleep 1
+-            let -i ping_count++
+-            ping -c 1 -w 60 $server
+-        done
+-
+-        # Cache the host IP
+-        ipaddr=$(get_ip $server)
+-        if [ -n "$ipaddr" -a "$ipaddr" != "$server" ]
+-        then
+-            echo "$ipaddr $server" >> /etc/hosts
+-        fi
++    echo "Testing connectivity to server: $server"
++    let -i TIMEOUT=${SECONDS}+600
++    ping -c 1 -w 60 $server || ping6 -c 1 -w 60 $server
++    while [ $? -ne 0 -a ${SECONDS} -lt ${TIMEOUT} ]
++    do
++        echo "Waiting for connectivity to server: $server"
++        sleep 1
++        ping -c 1 -w 60 $server || ping6 -c 1 -w 60 $server
++    done
+ 
++    # Cache the host IP
++    ipaddr=$(get_ip $server)
++    if [ -n "$ipaddr" -a "$ipaddr" != "$server" ]
++    then
++        echo "$ipaddr $server" >> /etc/hosts
+     fi
+ fi
+ 
+-- 
+1.8.3.1
+