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fix: HostID generation on OpenWrt 

To reduce the size of the system, OpenWrt contains only one hashing command -
`sha256sum`.

SHA-256 hash truncation to SHA1 length is allowed by NIST, see:
<https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.180-4.pdf>.
This commit is contained in:
macie 2025-02-09 08:19:13 +01:00
parent 4f7a333a35
commit 580c7a3e2c
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1 changed files with 7 additions and 2 deletions
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9
include/functions
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@ -940,7 +940,7 @@
done done
fi fi
if [ ! "${SHA1SUMBINARY}" = "" -o ! "${OPENSSLBINARY}" = "" -o ! "${CSUMBINARY}" = "" ]; then if [ ! "${SHA1SUMBINARY}" = "" -o ! "${SHA256SUMBINARY}" = "" -o ! "${OPENSSLBINARY}" = "" -o ! "${CSUMBINARY}" = "" ]; then
LogText "Info: found hashing tool, start generation of HostID" LogText "Info: found hashing tool, start generation of HostID"
case "${OS}" in case "${OS}" in
@ -1068,7 +1068,12 @@
# Check if we found a MAC address to generate the HostID # Check if we found a MAC address to generate the HostID
if HasData "${FIND}"; then if HasData "${FIND}"; then
LogText "Info: using hardware address '${FIND}' to create HostID" LogText "Info: using hardware address '${FIND}' to create HostID"
if [ -n "${SHA1SUMBINARY}" ]; then
HOSTID=$(echo ${FIND} | ${SHA1SUMBINARY} | awk '{ print $1 }') HOSTID=$(echo ${FIND} | ${SHA1SUMBINARY} | awk '{ print $1 }')
elif [ -n "${SHA256SUMBINARY}" ]; then
# Truncate hash to match SHA1 length
HOSTID=$(echo ${FIND} | ${SHA256SUMBINARY} | awk '{ print $1 }' | head -c 40)
fi
LogText "Result: Found HostID: ${HOSTID}" LogText "Result: Found HostID: ${HOSTID}"
else else
ReportException "GetHostID" "HostID could not be generated" ReportException "GetHostID" "HostID could not be generated"
@ -1155,7 +1160,7 @@
fi fi
else else
ReportException "GetHostID" "Can't create HOSTID as there is no SHA1 hash tool available (sha1, sha1sum, openssl)" ReportException "GetHostID" "Can't create HOSTID as there is no hash tool available (sha1, sha1sum, openssl, truncated sha256sum)"
fi fi
# Search machine ID # Search machine ID