+ # Calculate Error, errNS, in nanoseconds
+ ## Get current time
+ timeBufferStartNS="$(timeEpochNS)" && vbm "timeBufferStartNS :$timeBufferStartNS";
+ ## Calculate expected time (from start time, current buffer round number, nominal BUFFER_TTL)
+ timeBufferStartNSExp="$(( (timeBufferFirstNS) + (BUFFER_TTL_NS * bufferRound) ))" && vbm "timeBufferStartNSExp:$timeBufferStartNSExp";
+ ## Calculate error (diff between timeBufferStartNSExp and timeBufferStartNS; usually negative)
+ errNS="$(( timeBufferStartNSExp - timeBufferStartNS ))" && vbm "errNS:$errNS";
+# errNSx10e3="$((errNS*10**3))" && vbm "errNSx10e3:$errNSx10e3";
+ # ## Append error to errorHistory
+ # errorHistory+=("errNS");
+ # ### Trim errorHistory array if over errorHistorySize
+ # while [[ "${#errorHistory[@]}" -gt "errorHistorySize" ]]; then do
+ # unset "errorHistory[0]"; # remove oldest entry, creating sparse array
+ # errorHistory=("${errorHistory[@]}"); # reindex sparse array
+ # vbm "STATUS:Trimmed errorHistory array. Entry count:${#errorHistory[@]}";
+ # done;
+
+ # Calculate errReset in nanoseconds^2
+ ## errReset = int(errHistory(t),wrt(delta_BUFFER_TTL))
+ ## Integrate errorHistory with respect to time
+ # for value in "${errorHistory[@]}"; do
+ # errReset=$(( errReset + ( value*BUFFER_TTL_NS ) ));
+ # done;
+ vbm "errReset(orig):$errReset"
+ errReset="$(( (errReset + (errNS*BUFFER_TTL_NS)) ))" && vbm "errReset(post):$errReset";
+# errResetx10e3="$(( ( errResetx10e3 + ( errNSx10e3 * BUFFER_TTL_NS ) )*10**3 ))" && vbm "errResetx10e3:$errResetx10e3";
+
+ # Calculate errRate in nanoseconds per nanosecond
+ errRate="$(( errNS / BUFFER_TTL_NS ))" && vbm "errRate:$errRate";
+# errRatex10e3="$(( ( errNSx10e3 ) / BUFFER_TTL_NS ))" && vbm "errRatex10e3:$errRatex10e3";
+
+ # Debug
+ vbm "errNS :$errNS";
+ vbm "errResetTerm:$((errReset/T_I))";
+ vbm "errRateTerm :$((errRate*T_D))";
+
+ # Calculate PID control signal
+ ## ADJ = K_P * (errNS + errReset/T_I + errRate*T_D)
+ ADJ="$(( K_P*(errNS + errReset/T_I + errRate*T_D) ))" && vbm "ADJ:$ADJ";
+# ADJ="$((K_P*(errNSx10e3 + (errResetx10e3/T_I) + (errRatex10e3*T_D) )/(10**3)))" && vbm "ADJ:$ADJ";
+
+ # Calculate BUFFER_TTL_ADJ_FLOAT from ADJ (ns)
+ ## Calculate BUFFER_TTL_ADJ in nanoseconds (BUFFER_TTL_ADJ_NS = BUFFER_TTL_NS + ADJ)
+ BUFFER_TTL_ADJ_NS="$((BUFFER_TTL_NS + ADJ))" && vbm "BUFFER_TTL_ADJ_NS:$BUFFER_TTL_ADJ_NS";
+ ## Calculate integer seconds
+ BUFFER_TTL_ADJ_INT="$((BUFFER_TTL_ADJ_NS/(10**9)))" && vbm "BUFFER_TTL_ADJ_INT:$BUFFER_TTL_ADJ_INT";
+ ### Catch negative integer seconds, set minimum of BUFFER_TTL/10 seconds
+ if [[ "$BUFFER_TTL_ADJ_INT" -le "$((BUFFER_TTL/10))" ]]; then
+ BUFFER_TTL_ADJ_INT="$((BUFFER_TTL/10))";
+ yell "WARNING:Buffer lag adjustment yielded negative seconds.";
+ fi;
+ ## Calculate nanosecond remainder
+ ### Remove integer
+ BUFFER_TTL_ADJ_FLOATFRAC="$((BUFFER_TTL_ADJ_NS - (BUFFER_TTL_ADJ_INT*(10**9)) ))" && vbm "BUFFER_TTL_ADJ_FLOATFRAC:$BUFFER_TTL_ADJ_FLOATFRAC";
+ ### Calc absolute value of fraction (by removing '-' if present; see https://stackoverflow.com/a/47240327
+ BUFFER_TTL_ADJ_FLOATFRAC="${BUFFER_TTL_ADJ_FLOATFRAC#-}" && vbm "BUFFER_TTL_ADJ_FLOATFRAC:$BUFFER_TTL_ADJ_FLOATFRAC";
+ ## Form float BUFFER_TTL_ADJ_FLOAT
+ BUFFER_TTL_ADJ_FLOAT="$BUFFER_TTL_ADJ_INT"."$BUFFER_TTL_ADJ_FLOATFRAC" && vbm "BUFFER_TTL_ADJ_FLOAT:$BUFFER_TTL_ADJ_FLOAT";
+ vbm "STATUS:Calculated adjusted BUFFER_TTL (seconds):$BUFFER_TTL_ADJ_FLOAT";
+} # Calc BUFFER_TTL_ADJ_FLOAT so buffer starts every BUFFER_TTL seconds
+magicWriteVersion() {
+ # Desc: Appends time-stamped VERSION to PATHOUT_TAR
+ # Usage: magicWriteVersion
+ # Version: 0.1.0
+ # Input: CONTENT_VERSION, FILEOUT_VERSION, PATHOUT_TAR, DIR_TMP
+ # Input: scriptVersion, scriptURL, ageVersion, ageURL, scriptHostname
+ # Output: appends tar PATHOUT_TAR
+ # Depends: dateTimeShort, appendArgTar
+ local CONTENT_VERSION pubKeyIndex
+
+ # Set VERSION file name
+ FILEOUT_VERSION="$(dateTimeShort)..VERSION";
+
+ # Gather VERSION data in CONTENT_VERSION
+ CONTENT_VERSION="scriptVersion=$scriptVersion";
+ #CONTENT_VERSION="$CONTENT_VERSION""\\n";
+ CONTENT_VERSION="$CONTENT_VERSION""\\n""scriptName=$scriptName";
+ CONTENT_VERSION="$CONTENT_VERSION""\\n""scriptURL=$scriptURL";
+ CONTENT_VERSION="$CONTENT_VERSION""\\n""ageVersion=$ageVersion";
+ CONTENT_VERSION="$CONTENT_VERSION""\\n""ageURL=$ageURL";
+ CONTENT_VERSION="$CONTENT_VERSION""\\n""DATE=$(date --iso-8601=seconds)";
+ CONTENT_VERSION="$CONTENT_VERSION""\\n""HOSTNAME=$scriptHostname";
+ ## Add list of recipient pubkeys
+ for pubkey in "${recPubKeysValid[@]}"; do
+ ((pubKeyIndex++))
+ CONTENT_VERSION="$CONTENT_VERSION""\\n""PUBKEY_$pubKeyIndex=$pubkey";
+ done
+ ## Process newline escapes
+ CONTENT_VERSION="$(echo -e "$CONTENT_VERSION")"
+
+ # Write CONTENT_VERSION as file FILEOUT_VERSION and write-append to PATHOUT_TAR
+ appendArgTar "$CONTENT_VERSION" "$FILEOUT_VERSION" "$PATHOUT_TAR" "$DIR_TMP";
+
+} # bkgpslog: write version data to PATHOUT_TAR via appendArgTar()
+magicGatherWriteBuffer() {
+ # Desc: bkgpslog-specific meta function for writing data to DIR_TMP then appending each file to PATHOUT_TAR
+ # Inputs: vars: PATHOUT_TAR FILEOUT_{NMEA,GPX,KML} CMD_CONV_{NMEA,GPX,KML} CMD_{COMPRESS,ENCRYPT} DIR_TMP,
+ # Inputs: vars: BUFFER_TTL bufferTTL_STR scriptHostname CMD_COMPRESS_SUFFIX CMD_ENCRYPT_SUFFIX
+ # Output: file: (PATHOUT_TAR)
+ # Depends: yell(), try(), vbm(), appendArgTar(), tar 1, sleep 8, checkMakeTar()
+ # Depends: magicWriteVersion(), appendFileTar()
+ local FN
+
+ vbm "DEBUG:STATUS:$FN:Started magicGatherWriteBuffer().";
+ # Debug:Get function name
+ FN="${FUNCNAME[0]}";
+
+ # Create buffer file with unique name
+ PATHOUT_BUFFER="$DIR_TMP/buffer$SECONDS" && vbm "PATHOUT_BUFFER:$PATHOUT_BUFFER";
+ # Fill buffer
+ timeout "$BUFFER_TTL"s gpspipe -r -o "$PATHOUT_BUFFER" ;
+ timeBufferStartLong="$(date --date="$BUFFER_TTL seconds ago" --iso-8601=seconds)" && vbm "timeBufferStartLong:$timeBufferStartLong" || yell "ERROR:timeBufferStartLong fail";
+ timeBufferStart="$(dateTimeShort "$timeBufferStartLong" )" && vbm "timeBufferStart:$timeBufferStart" || yell "ERROR:timeBufferStart fail"; # Note start time
+ # Determine file paths (time is start of buffer period)
+ FILEOUT_BASENAME="$timeBufferStart""--""$bufferTTL_STR""..""$scriptHostname""_location" && vbm "STATUS:Set FILEOUT_BASENAME to:$FILEOUT_BASENAME";
+ ## Files saved to DIR_TMP
+ FILEOUT_NMEA="$FILEOUT_BASENAME".nmea"$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX" && vbm "STATUS:Set FILEOUT_NMEA to:$FILEOUT_NMEA";
+ FILEOUT_GPX="$FILEOUT_BASENAME".gpx"$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX" && vbm "STATUS:Set FILEOUT_GPX to:$FILEOUT_GPX";
+ FILEOUT_KML="$FILEOUT_BASENAME".kml"$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX" && vbm "STATUS:Set FILEOUT_KML to:$FILEOUT_KML";
+ PATHOUT_NMEA="$DIR_TMP"/"$FILEOUT_NMEA" && vbm "STATUS:Set PATHOUT_NMEA to:$PATHOUT_NMEA";
+ PATHOUT_GPX="$DIR_TMP"/"$FILEOUT_GPX" && vbm "STATUS:Set PATHOUT_GPX to:$PATHOUT_GPX";
+ PATHOUT_KML="$DIR_TMP"/"$FILEOUT_KML" && vbm "STATUS:Set PATHOUT_KML to:$PATHOUT_KML";
+ ## Files saved to disk (DIR_OUT)
+ ### one file per day (Ex: "20200731..hostname_location.[.gpx.gz].tar")
+ PATHOUT_TAR="$DIR_OUT"/"$(dateShort "$(date --date="$BUFFER_TTL seconds ago" --iso-8601=seconds)")".."$scriptHostname""_location""$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX".tar && \
+ vbm "STATUS:Set PATHOUT_TAR to:$PATHOUT_TAR";
+ # DEBUG: check vars
+ vbm "STATUS:FN :$FN";
+ vbm "STATUS:DIR_TMP :$DIR_TMP";
+ vbm "STATUS:PATHOUT_TAR :$PATHOUT_TAR";
+ vbm "STATUS:PATHOUT_NMEA :$PATHOUT_NMEA";
+ vbm "STATUS:PATHOUT_GPX :$PATHOUT_GPX";
+ vbm "STATUS:PATHOUT_KML :$PATHOUT_KML";
+ vbm "STATUS:BUFFER_TTL :$BUFFER_TTL";
+ vbm "STATUS:PATHOUT_BUFFER :$PATHOUT_BUFFER";
+ vbm "STATUS:timeBufferStart:$timeBufferStart";
+ vbm "FILEOUT_BASENAME :$FILEOUT_BASENAME";
+
+
+ # Validate PATHOUT_TAR as tar.
+ checkMakeTar "$PATHOUT_TAR";
+ ## Add VERSION file if checkMakeTar had to create a tar (exited 1) or replace one (exited 2)
+ vbm "exit status before magicWriteVersion:$?"
+ if [[ $? -eq 1 ]] || [[ $? -eq 2 ]]; then magicWriteVersion; fi
+
+ # Write bufferBash to PATHOUT_TAR
+ wait; # Wait to avoid collision with older magicWriteBuffer() instances (see https://www.tldp.org/LDP/abs/html/x9644.html )
+ appendFileTar "$PATHOUT_BUFFER" "$FILEOUT_NMEA" "$PATHOUT_TAR" "$DIR_TMP" "$CMD_CONV_NMEA" "$CMD_COMPRESS" "$CMD_ENCRYPT"; # Write NMEA data
+ appendFileTar "$PATHOUT_BUFFER" "$FILEOUT_GPX" "$PATHOUT_TAR" "$DIR_TMP" "$CMD_CONV_GPX" "$CMD_COMPRESS" "$CMD_ENCRYPT"; # Write GPX file
+ appendFileTar "$PATHOUT_BUFFER" "$FILEOUT_KML" "$PATHOUT_TAR" "$DIR_TMP" "$CMD_CONV_KML" "$CMD_COMPRESS" "$CMD_ENCRYPT"; # Write KML file
+
+ # Remove secured chunks from DIR_TMP
+ rm "$PATHOUT_BUFFER" "$PATHOUT_NMEA" "$PATHOUT_GPX" "$PATHOUT_KML";
+ vbm "DEBUG:STATUS:$FN:Finished magicGatherWriteBuffer().";
+} # write buffer to disk
+magicParseRecipientDir() {
+ # Desc: Updates recPubKeysValid with pubkeys in dir specified by '-R' option ("recipient directory")
+ # Inputs: vars: OPTION_RECDIR, argRecDir, OPTION_ENCRYPT
+ # arry: recPubKeysValid
+ # Outputs: arry: recPubKeysValid
+ # Depends: processArguments,
+ local recFileLine updateRecipients recipientDir
+ declare -a candRecPubKeysValid
+
+ # Check that '-e' and '-R' set
+ if [[ "$OPTION_ENCRYPT" = "true" ]] && [[ "$OPTION_RECDIR" = "true" ]]; then
+ ### Check that argRecDir is a directory.
+ if [[ -d "$argRecDir" ]]; then
+ recipientDir="$argRecDir" && vbm "STATUS:Recipient watch directory detected:\"$recipientDir\"";
+ #### Initialize variable indicating outcome of pubkey review
+ unset updateRecipients
+ #### Add existing recipients
+ candRecPubKeysValid=("${recPubKeysValidStatic[@]}");
+ #### Parse files in recipientDir
+ for file in "$recipientDir"/*; do
+ ##### Read first line of each file
+ recFileLine="$(head -n1 "$file")" && vbm "STATUS:Checking if pubkey:\"$recFileLine\"";
+ ##### check if first line is a valid pubkey
+ if checkAgePubkey "$recFileLine" && \
+ ( validateInput "$recFileLine" "ssh_pubkey" || validateInput "$recFileLine" "age_pubkey"); then
+ ###### T: add candidate pubkey to candRecPubKeysValid
+ candRecPubKeysValid+=("$recFileLine") && vbm "STATUS:RecDir pubkey is valid pubkey:\"$recFileLine\"";
+ else
+ ###### F: throw warning;
+ yell "ERROR:Invalid recipient file detected. Not modifying recipient list."
+ updateRecipients="false";
+ fi;
+ done
+ #### Write updated recPubKeysValid array to recPubKeysValid if no failure detected
+ if ! [[ "$updateRecipients" = "false" ]]; then
+ recPubKeysValid=("${candRecPubKeysValid[@]}") && vbm "STATUS:Wrote candRecPubkeysValid to recPubKeysValid:\"${recPubKeysValid[*]}\"";
+ fi;
+ else
+ yell "ERROR:$0:Recipient directory $argRecDir does not exist. Exiting."; exit 1;
+ fi;
+ fi;
+ # Handle case if '-R' set but '-e' not set
+ if [[ ! "$OPTION_ENCRYPT" = "true" ]] && [[ "$OPTION_RECDIR" = "true" ]]; then
+ yell "ERROR: \\'-R\\' is set but \\'-e\\' is not set."; fi;
+} # Update recPubKeysValid with argRecDir
+magicParseRecipientArgs() {
+ # Desc: Parses recipient arguments specified by '-r' option
+ # Input: vars: OPTION_ENCRYPT from processArguments()
+ # arry: argRecPubKeys from processArguments()
+ # Output: vars: CMD_ENCRYPT, CMD_ENCRYPT_SUFFIX
+ # arry: recPubKeysValid, recPubKeysValidStatic
+ # Depends: checkapp(), checkAgePubkey(), validateInput(), processArguments()
+ local recipients
+
+ # Check if encryption option active.
+ if [[ "$OPTION_ENCRYPT" = "true" ]] && [[ "$OPTION_RECIPIENTS" = "true" ]]; then
projects / EVA-2020-02.git / blobdiff