diff options
Diffstat (limited to 'scripts')
| -rwxr-xr-x | scripts/init/vyos-router | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/scripts/init/vyos-router b/scripts/init/vyos-router index ed71379..7863bd9 100755 --- a/scripts/init/vyos-router +++ b/scripts/init/vyos-router @@ -173,6 +173,34 @@ bind_mount_boot () fi } +# XXX: T3885 - generate persistend DHCPv6 DUID (Type4 - UUID based) +gen_duid () +{ + DUID_FILE="/var/lib/dhcpv6/dhcp6c_duid" + UUID_FILE="/sys/class/dmi/id/product_uuid" + if [ ! -f ${UUID_FILE} ]; then + return 1 + fi + + # DUID is based on the BIOS/EFI UUID. We omit additional - characters + UUID=$(cat ${UUID_FILE} | tr -d -) + # Add DUID type4 (UUID) information + DUID_TYPE="0004" + + # The length-information (as per RFC6355 UUID is 128 bits long) is in big-endian + # format - beware when porting to ARM64. The length field consists out of the + # UUID (128 bit + 16 bits DUID type) resulting in hex 12. + DUID_LEN="0012" + if [ "$(echo -n I | od -to2 | head -n1 | cut -f2 -d" " | cut -c6 )" -eq 1 ]; then + # true on little-endian (x86) systems + DUID_LEN="1200" + fi + + for i in $(echo -n ${DUID_LEN}${DUID_TYPE}${UUID} | sed 's/../& /g'); do + echo -ne "\x$i" + done > ${DUID_FILE} +} + start () { log_daemon_msg "Waiting for NICs to settle down" @@ -184,6 +212,10 @@ start () STATUS=$? log_progress_msg "settled in ${SECONDS}sec." log_end_msg ${STATUS} + + # Generate DHCPv6 DUID + gen_duid || log_failure_msg "could not generate DUID" + # Fixup for FRR # In 5.1 master, zebra thinks existence of /var/run/netns is |