rhel/usr_share_openvswitch_scripts_ovs-kmod-manage.sh

   1 #!/bin/sh
   2
   3 # Copyright (c) 2018 Nicira/VMware, Inc.
   4 #
   5 # Licensed under the Apache License, Version 2.0 (the "License");
   6 # you may not use this file except in compliance with the License.
   7 # You may obtain a copy of the License at:
   8 #
   9 #     http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 # Unless required by applicable law or agreed to in writing, software
  12 # distributed under the License is distributed on an "AS IS" BASIS,
  13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 # See the License for the specific language governing permissions and
  15 # limitations under the License.
  16
  17 # This script is intended to be used on the following kernels.
  18 #   - 3.10.0 major revision 327  (RHEL 7.2)
  19 #   - 3.10.0 major revision 693  (RHEL 7.4)
  20 #   - 3.10.0 major revision 957  (RHEL 7.6)
  21 #   - 3.10.0 major revision 1062 (RHEL 7.7)
  22 #   - 3.10.0 major revision 1101 (RHEL 7.8 Beta)
  23 #   - 3.10.0 major revision 1127 (RHEL 7.8 GA)
  24 #   - 4.4.x,  x >= 73           (SLES 12 SP3)
  25 #   - 4.12.x, x >= 14           (SLES 12 SP4).
  26 # It is packaged in the openvswitch kmod RPM and run in the post-install
  27 # scripts.
  28 #
  29 # For kernel 3.10.0-957,
  30 # due to some backward incompatible changes introduced in minor revision 12.1,
  31 # kernel modules built against kernels newer than 12.1 cannot be loaded on
  32 # system running kernels older than 12.1, vice versa.
  33 #
  34 # For kernel 3.10.0-693,
  35 # due to some backward incompatible changes introduced in minor revision 17.1,
  36 # kernel modules built against kernels newer than 17.1 cannot be loaded on
  37 # system running kernels older than 17.1, vice versa.
  38 #
  39 # For kernel 3.10.0-327,
  40 # due to some backward incompatible changes introduced in minor revision 41.3,
  41 # kernel modules built against kernels newer than 41.3 cannot be loaded on
  42 # system running kernels older than 41.3, vice versa.
  43 #
  44 # For kernel >= 4.4.73,
  45 # kernel modules built with 4.4.73 can run on systems with kernel versions from
  46 # 4.4.73 to 4.4.114; modules built against 4.4.120 can run on systems from
  47 # 4.4.120 onwards.
  48 #
  49 # For kernel 4.12.x, x>=14,
  50 # kernel modules built with the oldest compatible kernel 4.12.14-94.41.1 can
  51 # run on all versions onwards.
  52 #
  53 # This script checks the current running kernel version, and update symlinks
  54 # for the openvswitch kernel modules in the appropriate kernel directory,
  55 # provided the kmod RPM has installed kernel modules files built from both
  56 # minor revisions.
  57 #
  58 # In case of a kernel minor revision change after the openvswitch kmod package
  59 # is installed, this script shall be run manually after system reboots and
  60 # switches to a different kernel
  61 if [ -n "$(rpm -qa kmod-openvswitch)" ]; then
  62     rpmname="kmod-openvswitch"
  63 elif [ -n "$(rpm -qa openvswitch-kmod)" ]; then
  64     rpmname="openvswitch-kmod"
  65 else
  66     echo "openvswitch kmod package not installed, existing"
  67     exit 1
  68 fi
  69 #echo $rpmname
  70 script_name=$(basename -- "$0")
  71 current_kernel=$(uname -r)
  72 echo current kernel is $current_kernel
  73
  74 IFS='.\|-' read mainline_major mainline_minor mainline_patch major_rev \
  75     minor_rev _extra <<<"${current_kernel}"
  76 # echo mainline_major=$mainline_major mainline_minor=$mainline_minor \
  77 # mainline_patch=$mainline_patch major_rev=$major_rev minor_rev=$minor_rev
  78
  79 expected_rhel_base_minor="el7"
  80 if [ "$mainline_major" = "3" ] && [ "$mainline_minor" = "10" ]; then
  81     if [ "$major_rev" = "327" ]; then
  82 #        echo "rhel72"
  83         comp_ver=36
  84         ver_offset=4
  85         installed_ver="$minor_rev"
  86     elif [ "$major_rev" = "514" ]; then
  87 #        echo "rhel73"
  88         comp_ver=26
  89         ver_offset=4
  90         installed_ver="$minor_rev"
  91     elif [ "$major_rev" = "693" ]; then
  92 #        echo "rhel74"
  93         comp_ver=11
  94         ver_offset=4
  95         installed_ver="$minor_rev"
  96     elif [ "$major_rev" = "862" ]; then
  97 #        echo "rhel75"
  98         comp_ver=20
  99         ver_offset=4
 100         installed_ver="$minor_rev"
 101     elif [ "$major_rev" = "957" ]; then
 102 #        echo "rhel76"
 103         comp_ver=10
 104         ver_offset=4
 105         installed_ver="$minor_rev"
 106     elif [ "$major_rev" = "1062" ]; then
 107 #        echo "rhel77"
 108         comp_ver=10
 109         ver_offset=4
 110         installed_ver="$minor_rev"
 111     elif [ "$major_rev" = "1101" ]; then
 112 #        echo "rhel78"
 113         comp_ver=10
 114         ver_offset=4
 115         installed_ver="$minor_rev"
 116     elif [ "$major_rev" = "1127" ]; then
 117 #        echo "rhel78"
 118         comp_ver=10
 119         ver_offset=4
 120         installed_ver="$minor_rev"
 121     fi
 122 elif [ "$mainline_major" = "4" ] && [ "$mainline_minor" = "4" ]; then
 123     if [ "$mainline_patch" -ge "73" ]; then
 124 #        echo "sles12sp3"
 125         comp_ver=114
 126         ver_offset=2
 127         installed_ver="$mainline_patch"
 128     fi
 129 elif [ "$mainline_major" = "4" ] && [ "$mainline_minor" = "12" ]; then
 130     if [ "$mainline_patch" -ge "14" ]; then
 131 #        echo "sles12sp4"
 132         comp_ver=1
 133         ver_offset=2
 134         installed_ver="$mainline_patch"
 135     fi
 136 fi
 137
 138 if [ X"$ver_offset" = X ]; then
 139     echo "This script is not intended to run on kernel $(uname -r)"
 140     exit 1
 141 fi
 142
 143 #IFS='.\|-' read -r -a version_nums <<<"${current_kernel}"
 144 #echo ver_offset=$ver_offset
 145 #echo installed_ver="$installed_ver"
 146 #echo installed_ver="${version_nums[$ver_offset]}"
 147
 148 kmod_versions=()
 149 kversion=$(rpm -ql ${rpmname} | grep '\.ko$' | \
 150            sed -n -e 's/^\/lib\/modules\/\(.*\)\/extra\/.*$/\1/p' | \
 151            sort | uniq)
 152 for kv in $kversion; do
 153     IFS='.\|-' read -r -a kv_nums <<<"${kv}"
 154     kmod_versions+=(${kv_nums[$ver_offset]})
 155 done
 156 sorted_kmod_vers=$(printf "%s\n" "${kmod_versions[@]}" | \
 157                        sort -n)
 158 #echo "$sorted_kmod_vers"
 159
 160 if [ ! -n "$sorted_kmod_vers" ]; then
 161     echo "No kernel modules found from package $rpmname, exiting"
 162     exit 1
 163 else
 164     # first line for kmod_low_ver, last for kmod_high_ver
 165     kmod_low_ver=$(echo "$sorted_kmod_vers" | head -1)
 166     kmod_high_ver=$(echo "$sorted_kmod_vers" | tail -1)
 167 fi
 168 #echo "Installing KMOD with minor revisions $kmod_low_ver and \
 169 #$kmod_high_ver"
 170
 171 found_match=false
 172 for kname in $kversion;
 173 do
 174     IFS='.\|-' read -r -a pkg_ver_nums <<<"${kname}"
 175     pkg_ver=${pkg_ver_nums[$ver_offset]}
 176     if [ "$installed_ver" = "$expected_rhel_base_minor" ] ||
 177        [ "$installed_ver" -le "$comp_ver" ]; then
 178         if [ "$pkg_ver" = "$kmod_low_ver" ]; then
 179             requested_kernel=$kname
 180             found_match="true"
 181             echo "Installing Openvswitch KMOD from kernel $kname"
 182             break
 183         fi
 184     else
 185         if [ "$pkg_ver" = "$kmod_high_ver" ]; then
 186             requested_kernel=$kname
 187             found_match="true"
 188             echo "Installing Openvswitch KMOD from kernel $kname"
 189             break
 190         fi
 191     fi
 192 done
 193
 194 if [ "$found_match" = "false" ]; then
 195     echo $script_name: Failed
 196     exit 1
 197 fi
 198
 199 if [ "$requested_kernel" != "$current_kernel" ]; then
 200     if [ ! -d /lib/modules/$current_kernel/weak-updates/openvswitch ]; then
 201         mkdir -p /lib/modules/$current_kernel/weak-updates
 202         mkdir -p /lib/modules/$current_kernel/weak-updates/openvswitch
 203     fi
 204     for m in openvswitch vport-gre vport-stt vport-geneve \
 205         vport-lisp vport-vxlan; do
 206         ln -f -s /lib/modules/$requested_kernel/extra/openvswitch/$m.ko \
 207             /lib/modules/$current_kernel/weak-updates/openvswitch/$m.ko
 208     done
 209 else
 210     echo Proper OVS kernel modules already configured
 211 fi
 212 # Always run depmod
 213 /sbin/depmod -a