72 lines
2.0 KiB
Bash
72 lines
2.0 KiB
Bash
#!/bin/sh
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# bee-network.sh — bring up all physical network interfaces via DHCP
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# Unattended: runs silently, logs results, never blocks.
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LOG_PREFIX="bee-network"
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log() { echo "[$LOG_PREFIX] $*"; }
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list_interfaces() {
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ip -o link show \
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| awk -F': ' '{print $2}' \
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| grep -v '^lo$' \
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| grep -vE '^(docker|virbr|veth|tun|tap|br-|bond|dummy)' \
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| sort
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}
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# Give udev a short chance to expose late NICs before the first scan.
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if command -v udevadm >/dev/null 2>&1; then
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udevadm settle --timeout=5 >/dev/null 2>&1 || log "WARN: udevadm settle timed out"
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fi
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started_ifaces=""
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started_count=0
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scan_pass=1
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# Some server NICs appear a bit later after module/firmware init. Do a small
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# bounded rescan window without turning network bring-up into a boot blocker.
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while [ "$scan_pass" -le 3 ]; do
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interfaces=$(list_interfaces)
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if [ -n "$interfaces" ]; then
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for iface in $interfaces; do
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case " $started_ifaces " in
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*" $iface "*) continue ;;
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esac
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log "bringing up $iface"
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if ! ip link set "$iface" up; then
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log "WARN: could not bring up $iface"
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continue
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fi
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carrier=$(cat "/sys/class/net/$iface/carrier" 2>/dev/null || true)
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if [ "$carrier" = "1" ]; then
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log "carrier detected on $iface"
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else
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log "carrier not detected yet on $iface"
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fi
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# DHCP in background — non-blocking, keep dhclient verbose output in the service log.
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dhclient -4 -v -nw "$iface" &
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log "DHCP started for $iface (pid $!)"
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started_ifaces="$started_ifaces $iface"
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started_count=$((started_count + 1))
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done
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fi
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if [ "$scan_pass" -ge 3 ]; then
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break
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fi
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scan_pass=$((scan_pass + 1))
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sleep 2
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done
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if [ "$started_count" -eq 0 ]; then
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log "no physical interfaces found"
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exit 0
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fi
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log "done (interfaces started: $started_count)"
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