mirror of
https://github.com/xcat2/xcat-core.git
synced 2026-09-22 09:32:27 +00:00
Daniel Hilst
193 lines
8.1 KiB
Bash
Executable File
193 lines
8.1 KiB
Bash
Executable File
#!/bin/bash
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###############################################################################
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# nic_cfg.sh - backend-aware NIC-config query/teardown helper for xCAT autotest.
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#
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# Runs ON the target node. Ship + run it from a test case with xdsh -e, e.g.:
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# xdsh $$CN -e /opt/xcat/share/xcat/tools/autotest/testcase/commoncmd/nic_cfg.sh show ens4
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#
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# Why this exists:
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# confignetwork/confignics/infiniband/HA cases historically verify NIC config by
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# reading /etc/sysconfig/network-scripts/ifcfg-* (Red Hat) or /etc/sysconfig/network
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# (SUSE) or /etc/network/interfaces.d (Ubuntu). On EL10 the
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# NetworkManager-initscripts-ifcfg-rh plugin is gone: NetworkManager is keyfile-only
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# (/etc/NetworkManager/system-connections/*.nmconnection) and the network-scripts dir
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# does not exist, so every ifcfg read comes back empty and the cases fail.
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#
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# This helper detects the active backend and emits a NORMALIZED, ifcfg-style
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# "KEY=value" dump (IPADDR=, PREFIX=, BOOTPROTO=, MTU=, ...) regardless of backend,
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# so the existing `check:output=~...` assertions keep matching on every OS. On EL it
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# reads NetworkManager (nmcli + the keyfile); on SUSE/RH it reads ifcfg; on Ubuntu it
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# reads interfaces.d.
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#
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# Subcommands:
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# show <dev> normalized config dump for kernel device <dev>
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# (ens4, bond0, bond0.2, br0, br22, ib0, ...). Also appends the raw
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# backend config file so extra params are visible/greppable.
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# del <dev> remove the xCAT connection / ifcfg for <dev>
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# backup snapshot the persistent network config under /tmp/backupnet
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# restore restore the snapshot and reload the active backend
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#
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# <dev> is the kernel device name the tests already use; on NetworkManager the xCAT
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# connection ("xcat-<dev>", "xcat-bond-<name>", "xcat-bridge-<dev>",
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# "xcat-vlan-<dev>.<id>", ...) is resolved from the device, so callers never need to
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# know the connection naming.
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###############################################################################
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NMDIR=/etc/NetworkManager/system-connections
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RHDIR=/etc/sysconfig/network-scripts
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SUSEDIR=/etc/sysconfig/network
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UBUDIR=/etc/network/interfaces.d
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BACKUP=/tmp/backupnet
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detect_backend() {
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if command -v nmcli >/dev/null 2>&1 && systemctl is-active --quiet NetworkManager 2>/dev/null; then
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echo nm
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elif [ -d "$SUSEDIR" ] && grep -qi suse /etc/*release 2>/dev/null; then
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echo suse
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elif grep -qi ubuntu /etc/*release 2>/dev/null; then
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echo ubuntu
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elif [ -d "$RHDIR" ]; then
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echo rh
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else
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echo unknown
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fi
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}
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# Resolve a connection's on-disk keyfile path. NM names it "<id>-<uuid>.nmconnection"
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# (not just "<id>.nmconnection") whenever a same-named file already exists, so resolve by
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# UUID rather than assuming the plain name.
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nm_keyfile() {
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local conn=$1 uuid
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uuid=$(nmcli -g connection.uuid connection show "$conn" 2>/dev/null)
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if [ -n "$uuid" ]; then
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grep -l "uuid=$uuid" "$NMDIR"/*.nmconnection 2>/dev/null | head -1
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fi
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}
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# Resolve the NetworkManager connection name bound to a device.
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nm_conn_for_dev() {
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local dev=$1 c cand
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c=$(nmcli -t -f NAME,DEVICE connection show --active 2>/dev/null | awk -F: -v d="$dev" '$2==d{print $1; exit}')
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[ -z "$c" ] && c=$(nmcli -t -f NAME,DEVICE connection show 2>/dev/null | awk -F: -v d="$dev" '$2==d{print $1; exit}')
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if [ -z "$c" ]; then
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for cand in "xcat-$dev" "xcat-bond-$dev" "xcat-bridge-$dev" "xcat-vlan-$dev"; do
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if nmcli -t -f NAME connection show 2>/dev/null | grep -qx "$cand"; then c=$cand; break; fi
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done
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fi
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echo "$c"
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}
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nm_show() {
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local dev=$1 conn method addrs a ip pfx mtu kf
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conn=$(nm_conn_for_dev "$dev")
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if [ -z "$conn" ]; then echo "nic_cfg: no NetworkManager connection for device $dev"; return 1; fi
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echo "NAME=$conn"
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echo "DEVICE=$dev"
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method=$(nmcli -g ipv4.method connection show "$conn" 2>/dev/null)
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case "$method" in
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manual) echo "BOOTPROTO=none" ;;
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auto) echo "BOOTPROTO=dhcp" ;;
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disabled|"") : ;;
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*) echo "BOOTPROTO=$method" ;;
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esac
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addrs=$(nmcli -g ipv4.addresses connection show "$conn" 2>/dev/null)
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local oldifs="$IFS"; IFS=','
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for a in $addrs; do
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a=$(echo "$a" | tr -d ' ')
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[ -z "$a" ] && continue
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ip=${a%/*}; pfx=${a#*/}
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echo "IPADDR=$ip"
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echo "PREFIX=$pfx"
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done
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IFS="$oldifs"
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mtu=$(nmcli -g 802-3-ethernet.mtu connection show "$conn" 2>/dev/null)
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kf=$(nm_keyfile "$conn")
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if { [ -z "$mtu" ] || [ "$mtu" = "auto" ]; } && [ -n "$kf" ] && [ -r "$kf" ]; then
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mtu=$(awk -F= '/^[[:space:]]*mtu=/{print $2; exit}' "$kf")
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fi
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[ -n "$mtu" ] && [ "$mtu" != "auto" ] && echo "MTU=$mtu"
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# Raw keyfile so anything not normalized above (extra params, slaves, vlan id, ...)
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# is still visible and greppable by the case's check: lines.
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if [ -r "$kf" ]; then echo "# --- $kf ---"; cat "$kf"; fi
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}
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file_show() {
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# SUSE / legacy-RH / Ubuntu: cat whatever ifcfg/interfaces file matches the device.
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local dev=$1 f found=1
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for f in "$RHDIR"/ifcfg-*"$dev"* "$SUSEDIR"/ifcfg-"$dev" "$UBUDIR"/"$dev" "$UBUDIR"/"$dev":* ; do
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if [ -r "$f" ]; then echo "# --- $f ---"; cat "$f"; found=0; fi
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done
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[ -r /etc/network/interfaces ] && { echo "# --- /etc/network/interfaces ---"; cat /etc/network/interfaces; found=0; }
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return $found
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}
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nm_del() {
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local dev=$1 conn c
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conn=$(nm_conn_for_dev "$dev")
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[ -n "$conn" ] && nmcli connection delete "$conn" >/dev/null 2>&1
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# Drop every xCAT-created connection referencing this device (the connection itself,
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# its vlan children, and any bond/bridge slave on it), including NM's collision-renamed
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# "xcat-...-<uuid>" duplicates. This keeps stale connections from piling up and causing
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# keyfile-name collisions across cases.
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nmcli -t -f NAME connection show 2>/dev/null | grep -E "^xcat-.*${dev}" | while read -r c; do
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nmcli connection delete "$c" >/dev/null 2>&1
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done
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return 0
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}
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case "$1" in
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show)
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be=$(detect_backend); dev=$2
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case "$be" in
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nm) nm_show "$dev" ;;
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*) file_show "$dev" ;;
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esac
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;;
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del)
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be=$(detect_backend); shift
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for dev in "$@"; do
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case "$be" in
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nm) nm_del "$dev" ;;
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suse) rm -f "$SUSEDIR/ifcfg-$dev" ;;
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rh) rm -f "$RHDIR"/ifcfg-*"$dev"* ;;
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ubuntu) rm -f "$UBUDIR/$dev" "$UBUDIR/$dev":* ;;
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esac
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done
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;;
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setip)
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be=$(detect_backend); dev=$2; newip=$3
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case "$be" in
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nm) conn=$(nm_conn_for_dev "$dev")
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pfx=$(nmcli -g ipv4.addresses connection show "$conn" 2>/dev/null | head -1 | sed 's,.*/,,')
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[ -z "$pfx" ] && pfx=24
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nmcli connection modify "$conn" ipv4.method manual ipv4.addresses "$newip/$pfx" >/dev/null 2>&1
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nmcli connection up "$conn" >/dev/null 2>&1 ;;
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suse) sed -i "s,IPADDR=.*,IPADDR=$newip," "$SUSEDIR/ifcfg-$dev" ;;
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rh) sed -i "s,IPADDR=.*,IPADDR=$newip," "$RHDIR"/ifcfg-*"$dev"* ;;
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esac
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;;
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backup)
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be=$(detect_backend); rm -rf "$BACKUP"; mkdir -p "$BACKUP"
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case "$be" in
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nm) cp -af "$NMDIR"/. "$BACKUP"/ 2>/dev/null ;;
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suse) cp -af "$SUSEDIR"/ifcfg-* "$BACKUP"/ 2>/dev/null ;;
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rh) cp -af "$RHDIR" "$BACKUP"/ 2>/dev/null ;;
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ubuntu) cp -af "$UBUDIR"/. "$BACKUP"/ 2>/dev/null ;;
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esac
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;;
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restore)
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be=$(detect_backend)
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case "$be" in
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nm) rm -f "$NMDIR"/*.nmconnection 2>/dev/null; cp -af "$BACKUP"/. "$NMDIR"/ 2>/dev/null; chmod 600 "$NMDIR"/*.nmconnection 2>/dev/null; nmcli connection reload >/dev/null 2>&1 ;;
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suse) cp -af "$BACKUP"/ifcfg-* "$SUSEDIR"/ 2>/dev/null ;;
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rh) cp -af "$BACKUP"/network-scripts/. "$RHDIR"/ 2>/dev/null; command -v nmcli >/dev/null 2>&1 && nmcli con reload >/dev/null 2>&1 ;;
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ubuntu) cp -af "$BACKUP"/. "$UBUDIR"/ 2>/dev/null ;;
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esac
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rm -rf "$BACKUP"
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;;
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*)
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echo "usage: nic_cfg.sh {show|del <dev>|backup|restore}" >&2
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exit 2
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;;
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esac
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