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e5db08edf7
* Change network_get_subnet6() to sensibly guess a suitable prefix Attempt to return the first non-linklocal, non-ula range, then attempt to return the first non-linklocal range and finally fall back to the previous behaviour of simply returning the first found item. * Fix network_get_ipaddrs_all() Instead of replicating the flawed logic appending a fixed ":1" suffix to IPv6 addresses, rely on network_get_ipaddrs() and network_get_ipaddrs6() to build a single list of all interface addresses. * Fix network_get_subnets6() Instead of replicating the flawed logic appending a fixed ":1" suffix to IPv6 addresses, rely on the ipv6-prefix-assignment.local-address field to figure out the proper network address. Signed-off-by: Jo-Philipp Wich <jo@mein.io>
296 lines
7.4 KiB
Bash
296 lines
7.4 KiB
Bash
# 1: destination variable
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# 2: interface
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# 3: path
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# 4: separator
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# 5: limit
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__network_ifstatus() {
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local __tmp
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[ -z "$__NETWORK_CACHE" ] && \
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export __NETWORK_CACHE="$(ubus call network.interface dump)"
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__tmp="$(jsonfilter ${4:+-F "$4"} ${5:+-l "$5"} -s "$__NETWORK_CACHE" -e "$1=@.interface${2:+[@.interface='$2']}$3")"
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[ -z "$__tmp" ] && \
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unset "$1" && \
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return 1
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eval "$__tmp"
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}
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# determine first IPv4 address of given logical interface
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# 1: destination variable
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# 2: interface
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network_get_ipaddr() {
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__network_ifstatus "$1" "$2" "['ipv4-address'][0].address";
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}
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# determine first IPv6 address of given logical interface
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# 1: destination variable
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# 2: interface
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network_get_ipaddr6() {
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__network_ifstatus "$1" "$2" "['ipv6-address'][0].address" || \
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__network_ifstatus "$1" "$2" "['ipv6-prefix-assignment'][0]['local-address'].address" || \
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return 1
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}
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# determine first IPv4 subnet of given logical interface
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# 1: destination variable
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# 2: interface
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network_get_subnet() {
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__network_ifstatus "$1" "$2" "['ipv4-address'][0]['address','mask']" "/"
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}
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# determine first IPv6 subnet of given logical interface
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# 1: destination variable
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# 2: interface
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network_get_subnet6() {
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local __nets __addr
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if network_get_subnets6 __nets "$2"; then
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# Attempt to return first non-fe80::/10, non-fc::/7 range
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for __addr in $__nets; do
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case "$__addr" in fe[8ab]?:*|f[cd]??:*)
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continue
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esac
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export "$1=$__addr"
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return 0
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done
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# Attempt to return first non-fe80::/10 range
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for __addr in $__nets; do
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case "$__addr" in fe[8ab]?:*)
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continue
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esac
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export "$1=$__addr"
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return 0
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done
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# Return first item
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for __addr in $__nets; do
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export "$1=$__addr"
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return 0
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done
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fi
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unset "$1"
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return 1
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}
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# determine first IPv6 prefix of given logical interface
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# 1: destination variable
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# 2: interface
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network_get_prefix6() {
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__network_ifstatus "$1" "$2" "['ipv6-prefix'][0]['address','mask']" "/"
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}
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# determine all IPv4 addresses of given logical interface
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# 1: destination variable
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# 2: interface
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network_get_ipaddrs() {
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__network_ifstatus "$1" "$2" "['ipv4-address'][*].address"
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}
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# determine all IPv6 addresses of given logical interface
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# 1: destination variable
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# 2: interface
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network_get_ipaddrs6() {
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local __addr
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local __list=""
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if __network_ifstatus "__addr" "$2" "['ipv6-address'][*].address"; then
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for __addr in $__addr; do
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__list="${__list:+$__list }${__addr}"
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done
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fi
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if __network_ifstatus "__addr" "$2" "['ipv6-prefix-assignment'][*]['local-address'].address"; then
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for __addr in $__addr; do
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__list="${__list:+$__list }${__addr}"
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done
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fi
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if [ -n "$__list" ]; then
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export "$1=$__list"
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return 0
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fi
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unset "$1"
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return 1
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}
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# determine all IP addresses of given logical interface
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# 1: destination variable
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# 2: interface
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network_get_ipaddrs_all() {
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local __addr __addr6
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network_get_ipaddrs __addr "$2"
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network_get_ipaddrs6 __addr6 "$2"
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if [ -n "$__addr" -o -n "$__addr6" ]; then
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export "$1=${__addr:+$__addr }$__addr6"
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return 0
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fi
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unset "$1"
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return 1
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}
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# determine all IPv4 subnets of given logical interface
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# 1: destination variable
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# 2: interface
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network_get_subnets() {
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__network_ifstatus "$1" "$2" "['ipv4-address'][*]['address','mask']" "/ "
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}
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# determine all IPv6 subnets of given logical interface
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# 1: destination variable
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# 2: interface
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network_get_subnets6() {
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local __addr __mask
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local __list=""
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if __network_ifstatus "__addr" "$2" "['ipv6-address'][*]['address','mask']" "/ "; then
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for __addr in $__addr; do
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__list="${__list:+$__list }${__addr}"
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done
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fi
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if __network_ifstatus "__addr" "$2" "['ipv6-prefix-assignment'][*]['local-address'].address" && \
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__network_ifstatus "__mask" "$2" "['ipv6-prefix-assignment'][*].mask"; then
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for __addr in $__addr; do
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__list="${__list:+$__list }${__addr}/${__mask%% *}"
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__mask="${__mask#* }"
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done
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fi
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if [ -n "$__list" ]; then
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export "$1=$__list"
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return 0
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fi
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unset "$1"
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return 1
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}
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# determine all IPv6 prefixes of given logical interface
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# 1: destination variable
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# 2: interface
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network_get_prefixes6() {
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__network_ifstatus "$1" "$2" "['ipv6-prefix'][*]['address','mask']" "/ "
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}
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# determine IPv4 gateway of given logical interface
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# 1: destination variable
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# 2: interface
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# 3: consider inactive gateway if "true" (optional)
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network_get_gateway() {
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__network_ifstatus "$1" "$2" ".route[@.target='0.0.0.0' && !@.table].nexthop" "" 1 && \
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return 0
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[ "$3" = 1 -o "$3" = "true" ] && \
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__network_ifstatus "$1" "$2" ".inactive.route[@.target='0.0.0.0' && !@.table].nexthop" "" 1
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}
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# determine IPv6 gateway of given logical interface
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# 1: destination variable
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# 2: interface
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# 3: consider inactive gateway if "true" (optional)
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network_get_gateway6() {
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__network_ifstatus "$1" "$2" ".route[@.target='::' && !@.table].nexthop" "" 1 && \
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return 0
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[ "$3" = 1 -o "$3" = "true" ] && \
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__network_ifstatus "$1" "$2" ".inactive.route[@.target='::' && !@.table].nexthop" "" 1
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}
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# determine the DNS servers of the given logical interface
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# 1: destination variable
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# 2: interface
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# 3: consider inactive servers if "true" (optional)
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network_get_dnsserver() {
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__network_ifstatus "$1" "$2" "['dns-server'][*]" && return 0
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[ "$3" = 1 -o "$3" = "true" ] && \
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__network_ifstatus "$1" "$2" ".inactive['dns-server'][*]"
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}
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# determine the domains of the given logical interface
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# 1: destination variable
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# 2: interface
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# 3: consider inactive domains if "true" (optional)
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network_get_dnssearch() {
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__network_ifstatus "$1" "$2" "['dns-search'][*]" && return 0
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[ "$3" = 1 -o "$3" = "true" ] && \
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__network_ifstatus "$1" "$2" ".inactive['dns-search'][*]"
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}
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# 1: destination variable
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# 2: addr
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# 3: inactive
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__network_wan()
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{
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__network_ifstatus "$1" "" \
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"[@.route[@.target='$2' && !@.table]].interface" "" 1 && \
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return 0
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[ "$3" = 1 -o "$3" = "true" ] && \
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__network_ifstatus "$1" "" \
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"[@.inactive.route[@.target='$2' && !@.table]].interface" "" 1
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}
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# find the logical interface which holds the current IPv4 default route
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# 1: destination variable
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# 2: consider inactive default routes if "true" (optional)
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network_find_wan() { __network_wan "$1" "0.0.0.0" "$2"; }
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# find the logical interface which holds the current IPv6 default route
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# 1: destination variable
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# 2: consider inactive dafault routes if "true" (optional)
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network_find_wan6() { __network_wan "$1" "::" "$2"; }
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# test whether the given logical interface is running
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# 1: interface
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network_is_up()
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{
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local __up
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__network_ifstatus "__up" "$1" ".up" && [ "$__up" = 1 ]
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}
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# determine the protocol of the given logical interface
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# 1: destination variable
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# 2: interface
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network_get_protocol() { __network_ifstatus "$1" "$2" ".proto"; }
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# determine the layer 3 linux network device of the given logical interface
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# 1: destination variable
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# 2: interface
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network_get_device() { __network_ifstatus "$1" "$2" ".l3_device"; }
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# determine the layer 2 linux network device of the given logical interface
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# 1: destination variable
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# 2: interface
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network_get_physdev() { __network_ifstatus "$1" "$2" ".device"; }
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# defer netifd actions on the given linux network device
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# 1: device name
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network_defer_device()
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{
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ubus call network.device set_state \
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"$(printf '{ "name": "%s", "defer": true }' "$1")" 2>/dev/null
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}
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# continue netifd actions on the given linux network device
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# 1: device name
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network_ready_device()
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{
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ubus call network.device set_state \
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"$(printf '{ "name": "%s", "defer": false }' "$1")" 2>/dev/null
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}
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# flush the internal value cache to force re-reading values from ubus
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network_flush_cache() { unset __NETWORK_CACHE; }
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