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Code Issues Releases Wiki Activity

Check for valid OS via IPv4 and IPv6

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Signed-off-by: Christian König <ckoenig@posteo.de>
This commit is contained in:
Christian König 2023-06-04 22:51:10 +02:00
parent 487a64abec
commit c33963b250
No known key found for this signature in database
2 changed files with 44 additions and 4 deletions
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17
advanced/Scripts/piholeDebug.sh
View File

@ -339,7 +339,7 @@ os_check() {
detected_os=$(grep "\bID\b" /etc/os-release | cut -d '=' -f2 | tr -d '"')
detected_version=$(grep VERSION_ID /etc/os-release | cut -d '=' -f2 | tr -d '"')
cmdResult="$(dig +short -t txt "${remote_os_domain}" @ns1.pi-hole.net 2>&1; echo $?)"
cmdResult="$(dig -4 +short -t txt "${remote_os_domain}" @ns1.pi-hole.net 2>&1; echo $?)"
#Get the return code of the previous command (last line)
digReturnCode="${cmdResult##*$'\n'}"
@ -349,7 +349,20 @@ os_check() {
if [ "${digReturnCode}" -ne 0 ]; then
log_write "${INFO} Distro: ${detected_os^}"
log_write "${INFO} Version: ${detected_version}"
log_write "${CROSS} dig return code: ${COL_RED}${digReturnCode}${COL_NC}"
log_write "${CROSS} dig IPv4 return code: ${COL_RED}${digReturnCode}${COL_NC}"
log_write "${CROSS} dig response: ${response}"
log_write "${INFO} Retrying via IPv6"
cmdResult="$(dig -6 +short -t txt "${remote_os_domain}" @ns1.pi-hole.net 2>&1; echo $?)"
#Get the return code of the previous command (last line)
digReturnCode="${cmdResult##*$'\n'}"
# Extract dig response
response="${cmdResult%%$'\n'*}"
fi
# If also no success via IPv6
if [ "${digReturnCode}" -ne 0 ]; then
log_write "${CROSS} dig IPv6 return code: ${COL_RED}${digReturnCode}${COL_NC}"
log_write "${CROSS} dig response: ${response}"
log_write "${CROSS} Error: ${COL_RED}dig command failed - Unable to check OS${COL_NC}"
else

31
automated install/basic-install.sh
View File

@ -176,7 +176,8 @@ os_check() {
detected_os=$(grep '^ID=' /etc/os-release | cut -d '=' -f2 | tr -d '"')
detected_version=$(grep VERSION_ID /etc/os-release | cut -d '=' -f2 | tr -d '"')
cmdResult="$(dig +short -t txt "${remote_os_domain}" @ns1.pi-hole.net 2>&1; echo $?)"
# Test via IPv4
cmdResult="$(dig -4 +short -t txt "${remote_os_domain}" @ns1.pi-hole.net 2>&1; echo $?)"
# Gets the return code of the previous command (last line)
digReturnCode="${cmdResult##*$'\n'}"
@ -188,8 +189,34 @@ os_check() {
# If the value of ${response} is a single 0, then this is the return code, not an actual response.
if [ "${response}" == 0 ]; then
valid_response=false
else
valid_response=true
fi
fi
# Try again via IPv6
if [ "$valid_response" = false ]; then
unset valid_response
cmdResult="$(dig -6 +short -t txt "${remote_os_domain}" @ns1.pi-hole.net 2>&1; echo $?)"
# Gets the return code of the previous command (last line)
digReturnCode="${cmdResult##*$'\n'}"
if [ ! "${digReturnCode}" == "0" ]; then
valid_response=false
else
# Dig returned 0 (success), so get the actual response, and loop through it to determine if the detected variables above are valid
response="${cmdResult%%$'\n'*}"
# If the value of ${response} is a single 0, then this is the return code, not an actual response.
if [ "${response}" == 0 ]; then
valid_response=false
else
valid_response=true
fi
fi
fi
if [ "$valid_response" = true ]; then
IFS=" " read -r -a supportedOS < <(echo "${response}" | tr -d '"')
for distro_and_versions in "${supportedOS[@]}"
do
@ -212,7 +239,7 @@ os_check() {
done
fi
if [ "$valid_os" = true ] && [ "$valid_version" = true ] && [ ! "$valid_response" = false ]; then
if [ "$valid_os" = true ] && [ "$valid_version" = true ] && [ "$valid_response" = true ]; then
display_warning=false
fi