9dc35a57a2
- Introduced a web GUI for managing 5G connections, replacing the standalone 5g-router service. - Updated scripts to ensure exclusive access to the AT port, preventing conflicts. - Improved troubleshooting documentation in 5G_MODEM_TROUBLESHOOTING.md, adding checks for processes using the AT port. - Enhanced connection management in the web app, including auto-connect and detailed status APIs. - Updated installation scripts to reflect changes in service management and dependencies.
112 lines
4.4 KiB
Bash
112 lines
4.4 KiB
Bash
#!/bin/sh
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# Alpine 5G Router – modem status via AT commands (AT_COMMANDS_REFERENCE.md)
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# Outputs JSON. Used by Web GUI /api/status.
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# Rev: 3 (see REVISION in repo root)
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CONFIG="/etc/5g-router.conf"
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AT_PORT="${AT_PORT:-/dev/ttyUSB1}"
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AT_LOCK="/var/lock/5g-at.lock"
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[ -f "$CONFIG" ] && . "$CONFIG" || true
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# Acquire exclusive lock on AT port to avoid conflicts with connect-5g.sh
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exec 9>"$AT_LOCK"
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flock -w 10 9 || { echo '{"error":"AT port busy"}'; exit 1; }
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get_at() {
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_cmd="$1"
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_wait="${2:-1}"
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timeout $((_wait + 2)) sh -c "
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[ -c \"$AT_PORT\" ] || exit 1
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cat $AT_PORT 2>/dev/null &
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_p=\$!
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sleep 0.3
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echo -e '${_cmd}\r' > $AT_PORT
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sleep $_wait
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kill \$_p 2>/dev/null
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" 2>/dev/null
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}
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json_str() { printf '"%s"' "$(echo "$1" | sed 's/\\/\\\\/g; s/"/\\"/g; s/\r//g' | tr '\n' ' ')"; }
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# Probe port: send AT, return 0 if we see OK
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try_at_port() {
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_port="$1"
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[ ! -c "$_port" ] && return 1
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_out=$(timeout 4 sh -c "
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cat $_port 2>/dev/null &
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_p=\$!
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sleep 0.3
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echo -e 'AT\r' > $_port
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sleep 1
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kill \$_p 2>/dev/null
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" 2>/dev/null)
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echo "$_out" | grep -q 'OK' && return 0 || return 1
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}
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# Use configured port if it exists and is a char device; else try common Fibocom AT ports
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if [ ! -c "$AT_PORT" ]; then
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for p in /dev/ttyUSB0 /dev/ttyUSB1 /dev/ttyUSB2; do
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if try_at_port "$p"; then
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AT_PORT="$p"
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break
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fi
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done
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fi
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[ ! -c "$AT_PORT" ] && echo '{}' && exit 0
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# Disable command echo so we get only response lines (ATE0); avoids parsing "AT+CGMI" as manufacturer
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get_at "ATE0" 1 >/dev/null 2>&1
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sleep 0.2
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# Query AT commands (reference: AT_COMMANDS_REFERENCE.md)
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r_cgmi=$(get_at "AT+CGMI" 1)
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r_cgmm=$(get_at "AT+CGMM" 1)
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r_cgmr=$(get_at "AT+CGMR" 1)
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r_cgsn=$(get_at "AT+CGSN" 1)
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r_csq=$(get_at "AT+CSQ" 1)
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r_creg=$(get_at "AT+CREG?" 1)
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r_cereg=$(get_at "AT+CEREG?" 1)
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r_usbmode=$(get_at "AT+GTUSBMODE?" 1)
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r_ccid=$(get_at "AT+CCID" 1)
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r_cops=$(get_at "AT+COPS?" 1)
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r_cgpaddr=$(get_at "AT+CGPADDR=1" 1)
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# Parse (skip echoed command lines: lines starting with AT or +)
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manufacturer=$(echo "$r_cgmi" | grep -vE '^AT|^\+' | grep -oE '^[A-Za-z0-9 ].*' | head -1 | sed 's/\r$//; s/^ *//; s/ *$//')
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model=$(echo "$r_cgmm" | grep -vE '^AT|^\+' | grep -oE '^[A-Za-z0-9\-].*' | head -1 | sed 's/\r$//; s/^ *//; s/ *$//')
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revision=$(echo "$r_cgmr" | grep -vE '^(AT|OK|\+)' | head -1 | sed 's/\r$//; s/^ *//; s/ *$//')
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imei=$(echo "$r_cgsn" | grep -oE '[0-9]{15}' | head -1)
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csq=$(echo "$r_csq" | grep "+CSQ:" | grep -oE '[0-9]+' | head -1)
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creg=$(echo "$r_creg" | grep "+CREG:" | head -1)
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cereg=$(echo "$r_cereg" | grep "+CEREG:" | head -1)
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usb_mode=$(echo "$r_usbmode" | grep "+GTUSBMODE:" | grep -oE '[0-9]+' | head -1)
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iccid=$(echo "$r_ccid" | grep "+CCID:" | sed 's/+CCID:[[:space:]]*//; s/\r$//; s/"//g' | head -1)
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cops=$(echo "$r_cops" | grep "+COPS:" | sed 's/+COPS:[[:space:]]*//; s/\r$//' | head -1)
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modem_ip=$(echo "$r_cgpaddr" | grep "+CGPADDR:" | grep -oE '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+' | head -1)
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# Registration: CREG 0,1 = registered home, 0,5 = registered roaming; CEREG same
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creg_status=""
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case "$creg" in *",1"*) creg_status="registered_home";; *",5"*) creg_status="registered_roaming";; *",2"*) creg_status="searching";; *",0"*) creg_status="not_registered";; *) creg_status="unknown";; esac
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cereg_status=""
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case "$cereg" in *",1"*) cereg_status="registered_home";; *",5"*) cereg_status="registered_roaming";; *",2"*) cereg_status="searching";; *",0"*) cereg_status="not_registered";; *) cereg_status="unknown";; esac
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# Operator name from +COPS: 0,0,"Vodafone",7
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operator_name=$(echo "$cops" | sed -n 's/.*"\([^"]*\)".*/\1/p')
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# Build JSON (no jq)
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printf '{\n'
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printf ' "at_port": '; json_str "$AT_PORT"; printf ',\n'
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printf ' "manufacturer": '; json_str "${manufacturer:-}"; printf ',\n'
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printf ' "model": '; json_str "${model:-}"; printf ',\n'
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printf ' "revision": '; json_str "${revision:-}"; printf ',\n'
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printf ' "imei": '; json_str "${imei:-}"; printf ',\n'
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printf ' "signal_csq": %s,\n' "${csq:-null}"
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printf ' "creg_status": '; json_str "$creg_status"; printf ',\n'
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printf ' "cereg_status": '; json_str "$cereg_status"; printf ',\n'
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printf ' "usb_mode": '; json_str "${usb_mode:-}"; printf ',\n'
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printf ' "iccid": '; json_str "${iccid:-}"; printf ',\n'
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printf ' "operator": '; json_str "${operator_name:-}"; printf ',\n'
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printf ' "modem_ip": '; json_str "${modem_ip:-}"; printf '\n'
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printf '}\n'
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