009: publish AXPR23 final source and public documentation
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#!/system/bin/sh
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set -u
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STATE_DIR=${INTELLIRAT_STATE_DIR:-/data/local/tmp}
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CONFIG_FILE=${INTELLIRAT_CONFIG:-$STATE_DIR/config.conf}
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LOG_FILE=${INTELLIRAT_LOG:-$STATE_DIR/events.log}
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CMD_BIN=${INTELLIRAT_CMD:-cmd}
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DUMPSYS_BIN=${INTELLIRAT_DUMPSYS:-dumpsys}
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DEFAULT_SLOT=0
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DEFAULT_HIGH_MASK=00011101001110000111
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DEFAULT_LOW_MASK=00011100001110000111
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usage() {
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cat <<'EOF'
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IntelliRAT v0.1 manual prototype
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Usage:
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intellirat status [slot]
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intellirat capture [slot]
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intellirat high [slot]
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intellirat low [slot]
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intellirat restore [slot]
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intellirat --dry-run high|low|restore [slot]
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The prototype never changes RAT automatically. Capture the current state before
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the first transition. Restore returns the captured user network mask.
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EOF
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}
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fail() {
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printf 'IntelliRAT: %s\n' "$*" >&2
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exit 1
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}
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load_config() {
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TARGET_SLOT=$DEFAULT_SLOT
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HIGH_MASK=$DEFAULT_HIGH_MASK
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LOW_MASK=$DEFAULT_LOW_MASK
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if [ -f "$CONFIG_FILE" ]; then
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# The file is created root-only by service.sh; reject unsafe ownership
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# only when the platform exposes stat in the available shell.
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# shellcheck disable=SC1090
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. "$CONFIG_FILE"
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fi
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case "$TARGET_SLOT" in
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''|*[!0-9]*) fail "invalid TARGET_SLOT" ;;
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esac
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case "$HIGH_MASK:$LOW_MASK" in
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*[!01:]*|:*) fail "masks must be non-empty binary strings" ;;
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esac
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}
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ensure_state_dir() {
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mkdir -p "$STATE_DIR" || fail "cannot create $STATE_DIR"
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if [ "$STATE_DIR" = /data/local/tmp ]; then
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return
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fi
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chown 0 2000 "$STATE_DIR" 2>/dev/null || true
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chmod 0770 "$STATE_DIR" 2>/dev/null || true
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}
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log_event() {
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ensure_state_dir
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printf '%s %s\n' "$(date -u '+%Y-%m-%dT%H:%M:%SZ')" "$*" >> "$LOG_FILE"
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chmod 0600 "$LOG_FILE" 2>/dev/null || true
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}
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slot_or_default() {
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if [ "${1:-}" = '' ]; then
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printf '%s' "$TARGET_SLOT"
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else
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case "$1" in
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''|*[!0-9]*) fail "invalid slot: $1" ;;
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esac
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printf '%s' "$1"
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fi
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}
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state_file() {
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printf '%s/intellirat-sub-%s.state' "$STATE_DIR" "$1"
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}
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read_user_names() {
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slot=$1
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result=$(
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"$CMD_BIN" phone get-allowed-network-types-for-users -s "$slot" 2>&1
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) || fail "cannot read network types for slot $slot: $result"
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case "$result" in
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*'No valid subscription found'*|*'No valid NETWORK_TYPES_BITMASK'*)
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fail "no valid subscription for slot $slot: $result"
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;;
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esac
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result=$(printf '%s' "$result" | tr -d '[:space:]\r\n')
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[ -n "$result" ] || fail "empty network type response for slot $slot"
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printf '%s' "$result"
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}
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network_names_to_decimal() {
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names=$1
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mask=0
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old_ifs=$IFS
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IFS='|'
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# shellcheck disable=SC2086
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for name in $names; do
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case "$name" in
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GPRS) mask=$((mask | 1)) ;;
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EDGE) mask=$((mask | 2)) ;;
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UMTS) mask=$((mask | 4)) ;;
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CDMA) mask=$((mask | 8)) ;;
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EVDO_0) mask=$((mask | 16)) ;;
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EVDO_A) mask=$((mask | 32)) ;;
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1xRTT) mask=$((mask | 64)) ;;
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HSDPA) mask=$((mask | 128)) ;;
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HSUPA) mask=$((mask | 256)) ;;
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HSPA) mask=$((mask | 512)) ;;
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HSPA+) mask=$((mask | 16384)) ;;
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IDEN) mask=$((mask | 1024)) ;;
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EVDO_B) mask=$((mask | 2048)) ;;
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LTE) mask=$((mask | 4096)) ;;
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EHRPD) mask=$((mask | 8192)) ;;
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HSPAP) mask=$((mask | 16384)) ;;
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GSM) mask=$((mask | 32768)) ;;
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TD_SCDMA) mask=$((mask | 65536)) ;;
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IWLAN) mask=$((mask | 131072)) ;;
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LTE_CA) mask=$((mask | 4096)) ;;
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NR) mask=$((mask | 524288)) ;;
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UNKNOWN|NONE) ;;
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*) IFS=$old_ifs; fail "unknown network type from telephony: $name" ;;
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esac
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done
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IFS=$old_ifs
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printf '%s' "$mask"
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}
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decimal_to_binary() {
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mask=$1
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output=
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bit=19
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while [ "$bit" -ge 0 ]; do
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value=$((1 << bit))
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if [ $((mask & value)) -ne 0 ]; then
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output="${output}1"
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else
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output="${output}0"
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fi
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bit=$((bit - 1))
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done
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printf '%s' "$output"
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}
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read_user_binary() {
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names=$(read_user_names "$1")
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decimal=$(network_names_to_decimal "$names")
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decimal_to_binary "$decimal"
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}
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call_in_progress() {
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dump=$(
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"$DUMPSYS_BIN" telecom 2>/dev/null || true
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)
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current_calls=$(printf '%s\n' "$dump" | awk '
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/^ All calls:/ { in_calls=1; next }
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/^ Active dialing, or connecting calls:/ { in_calls=1; next }
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/^ Ringing calls:/ { in_calls=1; next }
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/^ Holding calls:/ { in_calls=1; next }
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/^[[:space:]]*[A-Za-z][A-Za-z _-]*:$/ { in_calls=0 }
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in_calls { print }
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')
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printf '%s\n' "$current_calls" | grep -Eq \
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'(^|[^A-Za-z])(ACTIVE|RINGING|DIALING|CONNECTING)([^A-Za-z]|$)|mCallState=(ACTIVE|RINGING|DIALING|CONNECTING)'
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}
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write_state() {
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slot=$1
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original_names=$2
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original_binary=$3
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file=$(state_file "$slot")
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tmp="${file}.tmp.$$"
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{
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printf 'original_names=%s\n' "$original_names"
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printf 'original_mask=%s\n' "$original_binary"
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printf 'captured_at=%s\n' "$(date -u '+%Y-%m-%dT%H:%M:%SZ')"
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} > "$tmp" || fail "cannot write $file"
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chmod 0600 "$tmp"
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mv "$tmp" "$file" || fail "cannot commit $file"
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}
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capture() {
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slot=$1
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ensure_state_dir
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names=$(read_user_names "$slot")
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decimal=$(network_names_to_decimal "$names")
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binary=$(decimal_to_binary "$decimal")
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file=$(state_file "$slot")
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if [ -f "$file" ] && [ "${INTELLIRAT_FORCE_CAPTURE:-0}" != 1 ]; then
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fail "state already captured for slot $slot; set INTELLIRAT_FORCE_CAPTURE=1 to replace it"
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fi
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write_state "$slot" "$names" "$binary"
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log_event "capture slot=$slot mask=$binary names=$names"
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printf 'captured slot=%s mask=%s names=%s\n' "$slot" "$binary" "$names"
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}
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get_original_mask() {
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file=$(state_file "$1")
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[ -f "$file" ] || {
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printf '%s' "$HIGH_MASK"
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return
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}
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value=$(grep '^original_mask=' "$file" | cut -d= -f2-)
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case "$value" in
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''|*[!01]*) fail "invalid saved state for slot $1" ;;
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esac
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printf '%s' "$value"
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}
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apply_mask() {
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slot=$1
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target=$2
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reason=$3
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current=$(read_user_binary "$slot")
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if [ "$current" = "$target" ]; then
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log_event "noop slot=$slot state=$reason mask=$target"
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printf 'already state=%s slot=%s mask=%s\n' "$reason" "$slot" "$target"
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return 0
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fi
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if call_in_progress; then
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fail "telephony call is active; transition refused"
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fi
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if [ "${INTELLIRAT_DRY_RUN:-0}" = 1 ]; then
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printf 'dry-run cmd phone set-allowed-network-types-for-users -s %s %s\n' \
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"$slot" "$target"
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return 0
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fi
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result=$(
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"$CMD_BIN" phone set-allowed-network-types-for-users -s "$slot" "$target" 2>&1
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) || fail "network transition failed: $result"
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case "$result" in
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*completed*) ;;
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*) fail "telephony did not confirm transition: $result" ;;
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esac
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actual=$(read_user_binary "$slot")
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[ "$actual" = "$target" ] || fail "verification mismatch: requested=$target actual=$actual"
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log_event "transition slot=$slot previous=$current state=$reason requested=$target actual=$actual"
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printf 'transition slot=%s state=%s previous=%s actual=%s\n' \
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"$slot" "$reason" "$current" "$actual"
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}
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status() {
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slot=$1
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names=$(read_user_names "$slot")
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decimal=$(network_names_to_decimal "$names")
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current=$(decimal_to_binary "$decimal")
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state=UNKNOWN
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[ "$current" = "$HIGH_MASK" ] && state=HIGH
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[ "$current" = "$LOW_MASK" ] && state=LOW
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saved=NO
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[ -f "$(state_file "$slot")" ] && saved=YES
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printf 'slot=%s state=%s mask=%s names=%s saved_original=%s\n' \
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"$slot" "$state" "$current" "$names" "$saved"
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}
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main() {
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dry_run=0
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if [ "${1:-}" = '--dry-run' ]; then
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dry_run=1
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INTELLIRAT_DRY_RUN=1
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export INTELLIRAT_DRY_RUN
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shift
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fi
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load_config
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ensure_state_dir
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command=${1:-help}
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shift || true
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slot=$(slot_or_default "${1:-}")
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case "$command" in
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help|-h|--help) usage ;;
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status) status "$slot" ;;
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capture) capture "$slot" ;;
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high) apply_mask "$slot" "$HIGH_MASK" HIGH ;;
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low) apply_mask "$slot" "$LOW_MASK" LOW ;;
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restore) apply_mask "$slot" "$(get_original_mask "$slot")" RESTORE ;;
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*) usage >&2; exit 2 ;;
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esac
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}
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main "$@"
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