xref: /openbmc/phosphor-misc/firstboot/first-boot-set-mac.sh (revision 5a3ac185501dcc8b51af75037f2acd85165ca2c2) 
1#!/bin/sh -eu
2
3show_error() {
4    if [ -n "${JOURNAL_STREAM-}" ]; then
5        echo "$@" | systemd-cat -t first-boot-set-mac -p emerg
6    else
7        echo "$@" >&2
8    fi
9}
10
11sync_mac() {
12
13    MAPPER_IFACE='xyz.openbmc_project.ObjectMapper'
14    MAPPER_PATH='/xyz/openbmc_project/object_mapper'
15    INVENTORY_PATH='/xyz/openbmc_project/inventory'
16    NETWORK_ITEM_IFACE='xyz.openbmc_project.Inventory.Item.NetworkInterface'
17
18    # Get the NETWORK ITEM count
19    NETWORK_ITEM_PATH_COUNT=$(busctl --no-pager --verbose call \
20                            ${MAPPER_IFACE} \
21                            ${MAPPER_PATH} \
22                            ${MAPPER_IFACE} \
23                            GetSubTree sias \
24                            ${INVENTORY_PATH} 0 1 ${NETWORK_ITEM_IFACE} \
25                        2>/dev/null | grep ${INVENTORY_PATH} | wc -l || true)
26
27    if [ $NETWORK_ITEM_PATH_COUNT -gt 1 ]; then
28        # If there are more than 2 NETOWRK ITEM and path must contain $1
29        # for finding the right NETWORK ITEM
30        NETWORK_ITEM_PATH=$(busctl --no-pager --verbose call \
31                            ${MAPPER_IFACE} \
32                            ${MAPPER_PATH} \
33                            ${MAPPER_IFACE} \
34                            GetSubTree sias \
35                            ${INVENTORY_PATH} 0 1 ${NETWORK_ITEM_IFACE} \
36                        2>/dev/null | grep ${INVENTORY_PATH} | grep $1 || true)
37    else
38        NETWORK_ITEM_PATH=$(busctl --no-pager --verbose call \
39                            ${MAPPER_IFACE} \
40                            ${MAPPER_PATH} \
41                            ${MAPPER_IFACE} \
42                            GetSubTree sias \
43                            ${INVENTORY_PATH} 0 1 ${NETWORK_ITEM_IFACE} \
44                        2>/dev/null | grep ${INVENTORY_PATH} || true)
45    fi
46
47    # '     STRING "/xyz/openbmc_project/inventory/system/chassis/ethernet";'
48    NETWORK_ITEM_PATH=${NETWORK_ITEM_PATH#*\"}
49    NETWORK_ITEM_PATH=${NETWORK_ITEM_PATH%\"*}
50
51    NETWORK_ITEM_SERVICE=$(mapper get-service \
52                                ${NETWORK_ITEM_PATH} 2>/dev/null || true)
53
54    if [[ -z "${NETWORK_ITEM_SERVICE}" ]]; then
55        show_error 'No Ethernet interface found in the Inventory. Is VPD EEPROM empty?'
56        return
57    fi
58
59    MAC_ADDR=$(busctl get-property ${NETWORK_ITEM_SERVICE} \
60                                ${NETWORK_ITEM_PATH} \
61                                ${NETWORK_ITEM_IFACE} MACAddress)
62
63    # 's "54:52:01:02:03:04"'
64    MAC_ADDR=${MAC_ADDR#*\"}
65    MAC_ADDR=${MAC_ADDR%\"*}
66
67    if [[ -n "${MAC_ADDR}" ]]; then
68        busctl set-property xyz.openbmc_project.Network \
69                            /xyz/openbmc_project/network/$1 \
70                            xyz.openbmc_project.Network.MACAddress \
71                            MACAddress s ${MAC_ADDR}
72    fi
73}
74
75if [ $# -eq 0 ]; then
76    show_error 'No Ethernet interface name is given'
77    exit 1
78fi
79
80sync_mac $1
81
82# Prevent start at next boot time
83mkdir -p "/var/lib/first-boot-set-mac"
84touch "/var/lib/first-boot-set-mac/${1}"
85