IP_SUPPORTED_PROTOCOLS="${IP_SUPPORTED_PROTOCOLS} ipv6"
-function ipv6_device_autoconf_enable() {
+ipv6_device_autoconf_enable() {
local device="${1}"
assert device_exists "${device}"
sysctl_set "net.ipv6.conf.${device}.accept_ra" 1
sysctl_set "net.ipv6.conf.${device}.autoconf" 1
+
+ log INFO "Enabled IPv6 auto-configuration on '${device}'"
+
+ # Disable IPv6 forwarding which cannot be used when the
+ # device is using IPv6 auto-configuration.
+ ipv6_device_forwarding_disable "${device}"
}
-function ipv6_device_autoconf_disable() {
+ipv6_device_autoconf_disable() {
local device="${1}"
assert device_exists "${device}"
sysctl_set "net.ipv6.conf.${device}.accept_ra" 0
sysctl_set "net.ipv6.conf.${device}.autoconf" 0
+
+ log INFO "Disabled IPv6 auto-configuration on '${device}'"
+
+ # Enable IPv6 forwarding again
+ ipv6_device_forwarding_enable "${device}"
+
+ # Automatically disable privacy extensions
+ ipv6_device_privacy_extensions_disable "${device}"
+}
+
+ipv6_device_forwarding_enable() {
+ local device="${1}"
+ shift
+
+ local accept_ra=0
+
+ local arg
+ while read arg; do
+ case "${arg}" in
+ --accept-ra)
+ accept_ra=2
+ ;;
+ esac
+ done <<< "$(args $@)"
+
+ sysctl_set "net.ipv6.conf.${device}.forwarding" 1
+
+ log INFO "Enabled IPv6 forwarding on '${device}'"
+
+ # If forwarding is enabled, the kernel won't process
+ # any router advertisements any more, which is not good
+ # when we still want a default route when running in
+ # DHCP client mode on an uplink zone.
+ if [ ${accept_ra} -gt 0 ]; then
+ log INFO " and accepting router advertisements"
+
+ sysctl_set "net.ipv6.conf.${device}.accept_ra" 2
+ fi
+}
+
+ipv6_device_forwarding_disable() {
+ local device="${1}"
+
+ sysctl_set "net.ipv6.conf.${device}.forwarding" 0
+
+ log INFO "Disabled IPv6 forwarding on '${device}'"
}
# Enable IPv6 RFC3041 privacy extensions if desired
-function ipv6_device_privacy_extensions_enable() {
+ipv6_device_privacy_extensions_enable() {
local device="${1}"
assert device_exists "${device}"
sysctl_set "net.ipv6.conf.${device}.use_tempaddr" 2
}
-function ipv6_device_privacy_extensions_disable() {
+ipv6_device_privacy_extensions_disable() {
local device="${1}"
assert device_exists "${device}"
sysctl_set "net.ipv6.conf.${device}.use_tempaddr" 0
}
-function ipv6_is_valid() {
+ipv6_is_valid() {
ipcalc --ipv6 -c $@ >/dev/null 2>&1
case "$?" in
esac
}
-function ipv6_prefix_is_valid() {
+ipv6_prefix_is_valid() {
local prefix=${1}
assert isset prefix
return ${EXIT_TRUE}
}
-function ipv6_get_prefix() {
+ipv6_get_prefix() {
ip_get_prefix "$@"
}
-function ipv6_split_prefix() {
+ipv6_split_prefix() {
ip_split_prefix "$@"
}
-function ipv6_implode() {
+ipv6_address_add() {
+ local address="${1}"
+ assert isset address
+
+ local device="${2}"
+ assert device_exists "${device}"
+ shift 2
+
+ local scope="global"
+ local preferred_lft valid_lft
+
+ # Enable to wait until DAD has finished and return
+ # an error if it has failed
+ local wait_for_dad="true"
+
+ local arg
+ while read arg; do
+ case "${arg}" in
+ --preferred-lifetime=*)
+ preferred_lft="$(cli_get_val "${arg}")"
+ ;;
+ --valid-lifetime=*)
+ valid_lft="$(cli_get_val "${arg}")"
+ ;;
+ --no-wait-for-dad)
+ wait_for_dad="false"
+ ;;
+ esac
+ done <<< "$(args $@)"
+
+ local cmd="ip addr add ${address} dev ${device} scope ${scope}"
+
+ # Preferred lifetime
+ if isinteger preferred_lft; then
+ list_append cmd "preferred_lft ${preferred_lft}"
+ fi
+
+ # Valid lifetime
+ if isinteger valid_lft; then
+ list_append cmd "valid_lft ${valid_lft}"
+ fi
+
+ cmd_quiet "${cmd}" || return ${EXIT_ERROR}
+
+ if enabled wait_for_dad; then
+ log DEBUG "Waiting for DAD to complete..."
+
+ ipv6_wait_for_dad "${address}" "${device}"
+ local ret="${?}"
+
+ case "${ret}" in
+ # DAD OK
+ ${EXIT_DAD_OK})
+ log DEBUG "DAD successfully completed"
+ return ${EXIT_OK}
+ ;;
+
+ # DAD failed
+ ${EXIT_DAD_FAILED})
+ log ERROR "DAD failed"
+
+ # Remove the IP address again
+ ipv6_address_del "${address}" "${device}"
+
+ return ${EXIT_ERROR}
+ ;;
+
+ # Any unknown errors
+ *)
+ log ERROR "DAD failed with unhandled error: ${ret}"
+ return ${EXIT_ERROR}
+ ;;
+ esac
+ fi
+
+ return ${EXIT_OK}
+}
+
+ipv6_address_del() {
+ local address="${1}"
+ local device="${2}"
+
+ ip_address_del "${device}" "${address}"
+}
+
+ipv6_address_flush() {
+ local device="${1}"
+ assert isset device
+
+ log DEBUG "Flushing all IPv6 addresses on ${device}"
+
+ # Remove any stale addresses from aborted clients
+ cmd_quiet ip -6 addr flush dev "${device}" scope global permanent
+ cmd_quiet ip -6 addr flush dev "${device}" scope global dynamic
+}
+
+ipv6_address_change_lifetime() {
+ local address="${1}"
+ assert isset address
+
+ local device="${2}"
+ assert device_exists "${device}"
+ shift 2
+
+ local preferred_lft
+ local valid_lft
+
+ local arg
+ while read arg; do
+ case "${arg}" in
+ --preferred-lifetime=*)
+ preferred_lft="$(cli_get_val "${arg}")"
+ ;;
+ --valid-lifetime=*)
+ valid_lft="$(cli_get_val "${arg}")"
+ ;;
+ esac
+ done <<< "$(args $@)"
+
+ local cmd="ip -6 addr change ${address} dev ${device} scope global"
+
+ if isinteger preferred_lft; then
+ list_append cmd "preferred_lft" "${preferred_lft}"
+ fi
+
+ if isinteger valid_lft; then
+ list_append cmd "valid_lft" "${valid_lft}"
+ fi
+
+ if ! cmd_quiet "${cmd}"; then
+ log ERROR "Could not change lifetimes of ${address} (${device})"
+ return ${EXIT_ERROR}
+ fi
+
+ log DEBUG "Changed lifetimes of ${address} (${device}) to:"
+ if isset preferred_lft; then
+ log DEBUG " preferred: ${preferred_lft}"
+ fi
+
+ if isset valid_lft; then
+ log DEBUG " valid: ${valid_lft}"
+ fi
+
+ return ${EXIT_OK}
+}
+
+ipv6_get_dad_status() {
+ local address="${1}"
+ assert isset address
+
+ local device="${2}"
+ assert isset device
+
+ # Strip prefix from address
+ address="$(ipv6_split_prefix "${address}")"
+
+ local output="$(ip -o addr show dev "${device}" to "${address}")"
+ if ! isset output; then
+ return ${EXIT_ERROR}
+ fi
+
+ # Abort if DAD failed
+ if [[ ${output} =~ "dadfailed" ]]; then
+ return ${EXIT_DAD_FAILED}
+ fi
+
+ # Wait a little more if DAD is still in progress
+ if [[ ${output} =~ "tentative" ]]; then
+ return ${EXIT_DAD_TENTATIVE}
+ fi
+
+ # DAD has successfully completed
+ return ${EXIT_DAD_OK}
+}
+
+ipv6_wait_for_dad() {
+ local address="${1}"
+ assert isset address
+
+ local device="${2}"
+ assert isset device
+
+ # Strip prefix from address
+ address="$(ipv6_split_prefix "${address}")"
+
+ local i
+ for i in {0..10}; do
+ # Check DAD status
+ ipv6_get_dad_status "${address}" "${interface}"
+ local ret="${?}"
+
+ case "${ret}" in
+ # DAD is still in progress. Give it a moment to settle...
+ ${EXIT_DAD_TENTATIVE})
+ sleep 0.5
+ continue
+ ;;
+
+ # Raise all other error codes
+ ${EXIT_DAD_OK}|${EXIT_DAD_FAILED}|*)
+ return ${ret}
+ ;;
+ esac
+ done
+
+ return ${EXIT_ERROR}
+}
+
+ipv6_device_get_addresses() {
+ local device="${1}"
+ assert isset device
+ shift
+
+ local scope
+
+ local arg
+ while read arg; do
+ case "${arg}" in
+ --scope=*)
+ scope="$(cli_get_val "${arg}")"
+ ;;
+ esac
+ done <<< "$(args $@)"
+
+ local cmd="ip -o addr show dev ${device}"
+ if isset scope; then
+ assert isoneof scope global dynamic link
+ list_append cmd "scope ${scope}"
+ fi
+
+ local addresses
+ local line args
+ while read line; do
+ args=( ${line} )
+
+ local i
+ for (( i=0; i < ${#args[@]} - 1; i++ )); do
+ if [ "${args[${i}]}" = "inet6" ]; then
+ list_append_one addresses "${args[$(( ${i} + 1 ))]}"
+ break
+ fi
+ done
+ done <<< "$(${cmd})"
+
+ list_sort ${addresses}
+}
+
+ipv6_implode() {
local address=${1}
assert isset address
print "${ADDRESS6_IMPL}"
}
-function ipv6_explode() {
+ipv6_explode() {
local address=${1}
assert isset address
print "${ADDRESS6_EXPL}"
}
-function ipv6_addr_eq() {
+ipv6_addr_eq() {
local addr1=${1}
assert isset addr1
&& return ${EXIT_TRUE} || return ${EXIT_FALSE}
}
-function ipv6_addr_gt() {
+ipv6_addr_gt() {
local addr1=${1}
assert isset addr1
return ${EXIT_FALSE}
}
-function ipv6_hash() {
+ipv6_hash() {
local address=${1}
assert isset address
echo "${address//:/}"
}
-function ipv6_get_network() {
+ipv6_get_network() {
local addr=${1}
assert isset addr
print "${PREFIX6}/${prefix}"
}
-function ipv6_6rd_format_address() {
+ipv6_6rd_format_address() {
local isp_prefix="${1}"
assert ipv6_is_valid "${isp_prefix}"
print "${formatted_address}/${prefix}"
}
-function ipv6_6rd_format_client_address() {
+ipv6_6rd_format_client_address() {
local address="${1}"
assert isset address
projects / people / ms / network.git / blobdiff