mirror/icwmp
1
0
Fork 0
mirror of https://dev.iopsys.eu/bbf/icwmp.git synced 2025-12-10 07:44:41 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

Update dhcp option 125 parsing logic

Browse source
This commit is contained in:
Suvendhu Hansa 2023-07-11 03:29:28 +00:00 • committed by Vivek Kumar Dutta
parent 5635e79d23
commit bd76686d11
1 changed files with 10 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
files/etc/udhcpc.user.d/udhcpc_icwmp_opt125.user
View file

@ -58,6 +58,10 @@ get_vivsoi() {
# read the length of enterprise data
len_val=${data:8:2}
data_len=$(printf "%d\n" "0x$len_val")
# add 4 byte for ent_id and 1 byte for len
data_len=$(( data_len * 2 + 10 ))
opt_len=$(printf "%d\n" "0x$len_val")
[ $opt_len -eq 0 ] && return
@ -93,14 +97,16 @@ get_vivsoi() {
# add 2 bytes for sub_opt id and sub_opt len field
sub_opt_end=$(( sub_opt_len + 4 ))
# fetch next sub option hex string
sub_data=${sub_data:${sub_opt_end}:${sub_data_len}}
# update the remaining sub option hex string length
sub_data_len=$((sub_data_len - sub_opt_end))
# fetch next sub option hex string
sub_data=${sub_data:${sub_opt_end}:${sub_data_len}}
done
break
# move ahead data to next enterprise id
data=${data:"${data_len}":"${rem_len}"}
rem_len=$(( rem_len - data_len ))
done
}