diff options
Diffstat (limited to 'package/base-files/files/lib/functions/network.sh')
| -rw-r--r-- | package/base-files/files/lib/functions/network.sh | 268 |
1 files changed, 268 insertions, 0 deletions
diff --git a/package/base-files/files/lib/functions/network.sh b/package/base-files/files/lib/functions/network.sh new file mode 100644 index 0000000..1b0c717 --- /dev/null +++ b/package/base-files/files/lib/functions/network.sh @@ -0,0 +1,268 @@ +# 1: destination variable +# 2: interface +# 3: path +# 4: separator +# 5: limit +__network_ifstatus() { + local __tmp + + [ -z "$__NETWORK_CACHE" ] && \ + export __NETWORK_CACHE="$(ubus call network.interface dump)" + + __tmp="$(jsonfilter ${4:+-F "$4"} ${5:+-l "$5"} -s "$__NETWORK_CACHE" -e "$1=@.interface${2:+[@.interface='$2']}$3")" + + [ -z "$__tmp" ] && \ + unset "$1" && \ + return 1 + + eval "$__tmp" +} + +# determine first IPv4 address of given logical interface +# 1: destination variable +# 2: interface +network_get_ipaddr() { + __network_ifstatus "$1" "$2" "['ipv4-address'][0].address"; +} + +# determine first IPv6 address of given logical interface +# 1: destination variable +# 2: interface +network_get_ipaddr6() { + local __addr + + if __network_ifstatus "__addr" "$2" "['ipv6-address','ipv6-prefix-assignment'][0].address"; then + case "$__addr" in + *:) export "$1=${__addr}1" ;; + *) export "$1=${__addr}" ;; + esac + return 0 + fi + + unset $1 + return 1 +} + +# determine first IPv4 subnet of given logical interface +# 1: destination variable +# 2: interface +network_get_subnet() { + __network_ifstatus "$1" "$2" "['ipv4-address'][0]['address','mask']" "/" +} + +# determine first IPv6 subnet of given logical interface +# 1: destination variable +# 2: interface +network_get_subnet6() { + __network_ifstatus "$1" "$2" "['ipv6-address'][0]['address','mask']" "/" +} + +# determine first IPv6 prefix of given logical interface +# 1: destination variable +# 2: interface +network_get_prefix6() { + __network_ifstatus "$1" "$2" "['ipv6-prefix'][0]['address','mask']" "/" +} + +# determine all IPv4 addresses of given logical interface +# 1: destination variable +# 2: interface +network_get_ipaddrs() { + __network_ifstatus "$1" "$2" "['ipv4-address'][*].address" +} + +# determine all IPv6 addresses of given logical interface +# 1: destination variable +# 2: interface +network_get_ipaddrs6() { + local __addr + local __list="" + + if __network_ifstatus "__addr" "$2" "['ipv6-address','ipv6-prefix-assignment'][*].address"; then + for __addr in $__addr; do + case "$__addr" in + *:) __list="${__list:+$__list }${__addr}1" ;; + *) __list="${__list:+$__list }${__addr}" ;; + esac + done + + export "$1=$__list" + return 0 + fi + + unset "$1" + return 1 +} + +# determine all IP addresses of given logical interface +# 1: destination variable +# 2: interface +network_get_ipaddrs_all() { + local __addr + local __list="" + + if __network_ifstatus "__addr" "$2" "['ipv4-address','ipv6-address','ipv6-prefix-assignment'][*].address"; then + for __addr in $__addr; do + case "$__addr" in + *:) __list="${__list:+$__list }${__addr}1" ;; + *) __list="${__list:+$__list }${__addr}" ;; + esac + done + + export "$1=$__list" + return 0 + fi + + unset "$1" + return 1 +} + +# determine all IPv4 subnets of given logical interface +# 1: destination variable +# 2: interface +network_get_subnets() { + __network_ifstatus "$1" "$2" "['ipv4-address'][*]['address','mask']" "/ " +} + +# determine all IPv6 subnets of given logical interface +# 1: destination variable +# 2: interface +network_get_subnets6() { + local __addr + local __list="" + + if __network_ifstatus "__addr" "$2" "['ipv6-address','ipv6-prefix-assignment'][*]['address','mask']" "/ "; then + for __addr in $__addr; do + case "$__addr" in + *:/*) __list="${__list:+$__list }${__addr%/*}1/${__addr##*/}" ;; + *) __list="${__list:+$__list }${__addr}" ;; + esac + done + + export "$1=$__list" + return 0 + fi + + unset "$1" + return 1 +} + +# determine all IPv6 prefixes of given logical interface +# 1: destination variable +# 2: interface +network_get_prefixes6() { + __network_ifstatus "$1" "$2" "['ipv6-prefix'][*]['address','mask']" "/ " +} + +# determine IPv4 gateway of given logical interface +# 1: destination variable +# 2: interface +# 3: consider inactive gateway if "true" (optional) +network_get_gateway() { + __network_ifstatus "$1" "$2" ".route[@.target='0.0.0.0' && !@.table].nexthop" "" 1 && \ + return 0 + + [ "$3" = 1 -o "$3" = "true" ] && \ + __network_ifstatus "$1" "$2" ".inactive.route[@.target='0.0.0.0' && !@.table].nexthop" "" 1 +} + +# determine IPv6 gateway of given logical interface +# 1: destination variable +# 2: interface +# 3: consider inactive gateway if "true" (optional) +network_get_gateway6() { + __network_ifstatus "$1" "$2" ".route[@.target='::' && !@.table].nexthop" "" 1 && \ + return 0 + + [ "$3" = 1 -o "$3" = "true" ] && \ + __network_ifstatus "$1" "$2" ".inactive.route[@.target='::' && !@.table].nexthop" "" 1 +} + +# determine the DNS servers of the given logical interface +# 1: destination variable +# 2: interface +# 3: consider inactive servers if "true" (optional) +network_get_dnsserver() { + __network_ifstatus "$1" "$2" "['dns-server'][*]" && return 0 + + [ "$3" = 1 -o "$3" = "true" ] && \ + __network_ifstatus "$1" "$2" ".inactive['dns-server'][*]" +} + +# determine the domains of the given logical interface +# 1: destination variable +# 2: interface +# 3: consider inactive domains if "true" (optional) +network_get_dnssearch() { + __network_ifstatus "$1" "$2" "['dns-search'][*]" && return 0 + + [ "$3" = 1 -o "$3" = "true" ] && \ + __network_ifstatus "$1" "$2" ".inactive['dns-search'][*]" +} + + +# 1: destination variable +# 2: addr +# 3: inactive +__network_wan() +{ + __network_ifstatus "$1" "" \ + "[@.route[@.target='$2' && !@.table]].interface" "" 1 && \ + return 0 + + [ "$3" = 1 -o "$3" = "true" ] && \ + __network_ifstatus "$1" "" \ + "[@.inactive.route[@.target='$2' && !@.table]].interface" "" 1 +} + +# find the logical interface which holds the current IPv4 default route +# 1: destination variable +# 2: consider inactive default routes if "true" (optional) +network_find_wan() { __network_wan "$1" "0.0.0.0" "$2"; } + +# find the logical interface which holds the current IPv6 default route +# 1: destination variable +# 2: consider inactive dafault routes if "true" (optional) +network_find_wan6() { __network_wan "$1" "::" "$2"; } + +# test whether the given logical interface is running +# 1: interface +network_is_up() +{ + local __up + __network_ifstatus "__up" "$1" ".up" && [ "$__up" = 1 ] +} + +# determine the protocol of the given logical interface +# 1: destination variable +# 2: interface +network_get_protocol() { __network_ifstatus "$1" "$2" ".proto"; } + +# determine the layer 3 linux network device of the given logical interface +# 1: destination variable +# 2: interface +network_get_device() { __network_ifstatus "$1" "$2" ".l3_device"; } + +# determine the layer 2 linux network device of the given logical interface +# 1: destination variable +# 2: interface +network_get_physdev() { __network_ifstatus "$1" "$2" ".device"; } + +# defer netifd actions on the given linux network device +# 1: device name +network_defer_device() +{ + ubus call network.device set_state \ + "$(printf '{ "name": "%s", "defer": true }' "$1")" 2>/dev/null +} + +# continue netifd actions on the given linux network device +# 1: device name +network_ready_device() +{ + ubus call network.device set_state \ + "$(printf '{ "name": "%s", "defer": false }' "$1")" 2>/dev/null +} + +# flush the internal value cache to force re-reading values from ubus +network_flush_cache() { unset __NETWORK_CACHE; } |