mirror of
https://dev.iopsys.eu/feed/iopsys.git
synced 2025-12-10 07:44:50 +01:00
319 lines
7 KiB
Bash
319 lines
7 KiB
Bash
#!/bin/sh
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. /lib/functions.sh
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. /usr/share/libubox/jshn.sh
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CLASS=""
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OUI=""
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SERIAL=""
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GW_DISCOVERED=0
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_json_no_warning=1
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get_vivsoi() {
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# opt125 environment variable has data in below format
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# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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# | enterprise-number1 |
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# | |
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# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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# | data-len1 | |
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# +-+-+-+-+-+-+-+-+ option-data1 |
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# / /
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# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -----
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# | enterprise-number2 | ^
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# | | |
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# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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# | data-len2 | | optional
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# +-+-+-+-+-+-+-+-+ option-data2 | |
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# / / |
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# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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# ~ ... ~ V
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# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -----
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# Enterprise Id Len Sub Op SLen Data Sub Op SLen Data Sub Op SLen Data
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# +-------------+-----+------+------+----+------+-----+----+-----+------+-----+----+
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# | id | n | 1 | n1 | D1 | 2 | n2 | D2 | ... | 6 | n6 | D6 |
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# +-------------+-----+------+------+----+------+-----+----+-----+------+-----+----+
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local opt125="$1"
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local len="$2"
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local ent_id
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#hex-string 2 character=1 Byte
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# length in hex string will be twice of actual Byte length
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[ "$len" -gt "8" ] || return
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data="${opt125}"
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rem_len="${len}"
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while [ $rem_len -gt 0 ]; do
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ent_id=${data:0:8}
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ent_id=$(printf "%d\n" "0x$ent_id")
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if [ $ent_id -ne 3561 ]; then
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len_val=${data:8:2}
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data_len=$(printf "%d\n" "0x$len_val")
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# add 4 byte for ent_id and 1 byte for len
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data_len=$(( data_len * 2 + 10 ))
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# move ahead data to next enterprise id
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data=${data:"${data_len}":"${rem_len}"}
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rem_len=$(( rem_len - $data_len ))
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continue
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fi
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# read the length of enterprise data
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len_val=${data:8:2}
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data_len=$(printf "%d\n" "0x$len_val")
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# add 4 byte for ent_id and 1 byte for len
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data_len=$(( data_len * 2 + 10 ))
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opt_len=$(printf "%d\n" "0x$len_val")
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[ $opt_len -eq 0 ] && return
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# populate the option data of enterprise id
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sub_data_len=$(( opt_len * 2))
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# starting 10 means ahead of length field
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sub_data=${data:10:"${sub_data_len}"}
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# parsing of suboption of option 125
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while [ $sub_data_len -gt 0 ]; do
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# get the suboption id
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sub_opt_id=${sub_data:0:2}
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sub_opt_id=$(printf "%d\n" "0x$sub_opt_id")
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# get the length of suboption
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sub_opt_len=${sub_data:2:2}
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sub_opt_len=$(printf "%d\n" "0x$sub_opt_len")
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sub_opt_len=$(( sub_opt_len * 2 ))
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# get the value of sub option starting 4 means starting after length
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sub_opt_val=${sub_data:4:${sub_opt_len}}
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# assign the value found in sub option
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case "${sub_opt_id}" in
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"4")
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OUI=$(echo -n $sub_opt_val | sed 's/\([0-9A-F]\{2\}\)/\\\\\\x\1/gI' | xargs printf && echo '')
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GW_DISCOVERED=1
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;;
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"5")
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SERIAL=$(echo -n $sub_opt_val | sed 's/\([0-9A-F]\{2\}\)/\\\\\\x\1/gI' | xargs printf && echo '')
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GW_DISCOVERED=1
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;;
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"6")
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CLASS=$(echo -n $sub_opt_val | sed 's/\([0-9A-F]\{2\}\)/\\\\\\x\1/gI' | xargs printf && echo '')
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GW_DISCOVERED=1
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;;
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esac
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# add 2 bytes for sub_opt id and sub_opt len field
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sub_opt_end=$(( sub_opt_len + 4 ))
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# update the remaining sub option hex string length
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sub_data_len=$((sub_data_len - sub_opt_end))
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# fetch next sub option hex string
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sub_data=${sub_data:${sub_opt_end}:${sub_data_len}}
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done
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# move ahead data to next enterprise id
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data=${data:"${data_len}":"${rem_len}"}
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rem_len=$(( rem_len - data_len ))
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done
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}
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send_host_query() {
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intf="${1}"
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resp=1
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loop=3
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usp_serv_found=0
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sent_host=" "
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ubus call umdns update
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while [ "${loop}" -ne 0 ]; do
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sleep 5
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json_load "$(ubus call umdns browse)"
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json_select discovered_services
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if [ "${?}" -ne 0 ]; then
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json_cleanup
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loop=$(( loop - 1 ))
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continue
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fi
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json_select _usp-agt-mqtt._tcp
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if [ "${?}" -ne 0 ]; then
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json_cleanup
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loop=$(( loop - 1 ))
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continue
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fi
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usp_serv_found=1
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break
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done
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if [ "${usp_serv_found}" -eq 0 ]; then
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echo "${resp}"
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return 0
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fi
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json_get_keys keys
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for key in $keys; do
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json_select $key
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json_get_var _host host ""
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if [ -z "${_host}" ] || [[ "${sent_host}" =~ " ${_host}" ]]; then
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json_select ..
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continue
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fi
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sent_host="${sent_host} ${_host}"
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cmd="ubus call umdns query '{\"question\":\"$_host\",\"interface\":\"$intf\"}'"
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eval $cmd
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resp=0
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json_select ..
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done
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json_cleanup
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echo "${resp}"
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}
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get_usp_agent_id() {
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dhcp_ip="${1}"
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family="ipv4"
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ID=""
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if [[ "${dhcp_ip}" =~ ":" ]]; then
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family="ipv6"
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fi
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json_load "$(ubus call umdns browse)"
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json_select discovered_services
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if [ "${?}" -ne 0 ]; then
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json_cleanup
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echo ${ID}
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return 0
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fi
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json_select _usp-agt-mqtt._tcp
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if [ "${?}" -ne 0 ]; then
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json_cleanup
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echo ${ID}
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return 0
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fi
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json_get_keys keys
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for key in $keys; do
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json_select $key
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json_select $family
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if [ "${?}" -ne 0 ]; then
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json_select ..
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continue
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fi
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json_get_keys ips
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for ip in $ips; do
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json_get_var ip_val $ip
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if [ "${ip_val}" != "${dhcp_ip}" ]; then
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continue
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fi
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json_select ..
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json_select txt
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json_get_keys txts
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for _txt in $txts; do
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json_get_var text_val $_txt
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if [[ "${text_val:0:3}" == "ID=" ]]; then
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ID="${text_val:3}"
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break
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fi
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done
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break
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done
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json_select ..
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json_select ..
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if [ -n "${ID}" ]; then
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break
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fi
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done
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json_cleanup
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echo ${ID}
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}
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get_mac_address() {
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ip="${1}"
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mac="$(cat /proc/net/arp | grep $ip | awk '{print $4}')"
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echo "${mac}"
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}
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config_load gateway
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config_get wan_intf global wan_interface "wan"
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if [ "${wan_intf}" == "${INTERFACE}" ]; then
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if [ "${1}" == "deconfig" ]; then
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rm -rf /var/state/gwinfo
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return 0
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fi
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if [ -z "$opt125" ]; then
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return 0
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fi
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len=$(printf "$opt125"|wc -c)
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get_vivsoi "$opt125" "$len"
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if [ "${GW_DISCOVERED}" -eq 0 ]; then
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return 0
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fi
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mkdir -p /var/state
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touch /var/state/gwinfo
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sec=$(uci -q -c /var/state get gwinfo.gatewayinfo)
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if [ -z "${sec}" ]; then
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sec=$(uci -q -c /var/state add gwinfo gatewayinfo)
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uci -q -c /var/state rename gwinfo."${sec}"="gatewayinfo"
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fi
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uci -q -c /var/state set gwinfo.gatewayinfo.hwaddr=""
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uci -q -c /var/state set gwinfo.gatewayinfo.endpoint=""
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uci -q -c /var/state set gwinfo.gatewayinfo.class="$CLASS"
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uci -q -c /var/state set gwinfo.gatewayinfo.oui="$OUI"
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uci -q -c /var/state set gwinfo.gatewayinfo.serial="$SERIAL"
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uci -q -c /var/state set gwinfo.gatewayinfo.proto="CWMP"
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uci -q -c /var/state commit gwinfo
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# Check for USP parameters
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ubus -t 15 wait_for umdns
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if [ "${?}" -ne 0 ]; then
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return 0
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fi
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json_load "$(ifstatus ${INTERFACE})"
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json_get_var dev_name device ""
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json_select data
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json_get_var dhcp_ip dhcpserver ""
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json_cleanup
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if [ -z "${dhcp_ip}" ] || [ -z "${dev_name}" ]; then
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return 0
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fi
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resp=$(send_host_query $dev_name)
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if [ "${resp}" -ne 0 ]; then
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return 0
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fi
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ID="$(get_usp_agent_id $dhcp_ip)"
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if [ -z "${ID}" ]; then
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return 0
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fi
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MAC="$(get_mac_address $dhcp_ip)"
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uci -q -c /var/state set gwinfo.gatewayinfo.hwaddr="$MAC"
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uci -q -c /var/state set gwinfo.gatewayinfo.endpoint="$ID"
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uci -q -c /var/state set gwinfo.gatewayinfo.proto="USP"
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uci -q -c /var/state commit gwinfo
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fi
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