| The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1 | BEGIN { |
| 2 | # we need the number of bytes in a packet to do the output |
| 3 | # in packet numbers rather than byte numbers. |
| 4 | if (packetsize <= 0) |
| 5 | packetsize = 512 |
| 6 | expectNext = 1 |
| 7 | lastwin = -1 |
| 8 | } |
| 9 | { |
| 10 | # convert tcp trace to send/ack form. |
| 11 | n = split ($1,t,":") |
| 12 | tim = t[1]*3600 + t[2]*60 + t[3] |
| 13 | if (NR <= 1) { |
| 14 | tzero = tim |
| 15 | ltim = tim |
| 16 | OFS = "\t" |
| 17 | } |
| 18 | if ($6 != "ack") { |
| 19 | # we have a data packet record: |
| 20 | # ignore guys with syn, fin or reset 'cause we |
| 21 | # can't handle their sequence numbers. Try to |
| 22 | # detect and add a flag character for 'anomalies': |
| 23 | # * -> re-sent packet |
| 24 | # - -> packet after hole (missing packet(s)) |
| 25 | # # -> odd size packet |
| 26 | if ($5 !~ /[SFR]/) { |
| 27 | i = index($6,":") |
| 28 | j = index($6,"(") |
| 29 | strtSeq = substr($6,1,i-1) |
| 30 | endSeq = substr($6,i+1,j-i-1) |
| 31 | len = endSeq - strtSeq |
| 32 | id = endSeq |
| 33 | if (! timeOf[id]) |
| 34 | timeOf[id] = tim |
| 35 | if (endSeq - expectNext < 0) |
| 36 | flag = "*" |
| 37 | else { |
| 38 | if (strtSeq - expectNext > 0) |
| 39 | flag = "-" |
| 40 | else if (len != packetsize) |
| 41 | flag = "#" |
| 42 | else |
| 43 | flag = " " |
| 44 | expectNext = endSeq |
| 45 | } |
| 46 | printf "%7.2f\t%7.2f\t%s send %s %d", tim-tzero, tim-ltim,\ |
| 47 | flag, $5, strtSeq |
| 48 | if (++timesSent[id] > 1) |
| 49 | printf " (%.2f) [%d]", tim - timeOf[id], timesSent[id] |
| 50 | if (len != packetsize) |
| 51 | printf " <%d>", len |
| 52 | } |
| 53 | } else { |
| 54 | id = $7 |
| 55 | |
| 56 | printf "%7.2f\t%7.2f\t%s ack %s %d", tim-tzero, tim-ltim,\ |
| 57 | flag, $5, id |
| 58 | if ($9 != lastwin) { |
| 59 | printf " win %d", $9 |
| 60 | lastwin = $9 |
| 61 | } |
| 62 | printf " (%.2f)", tim - timeOf[id] |
| 63 | if (++timesAcked[id] > 1) |
| 64 | printf " [%d]", timesAcked[id] |
| 65 | } |
| 66 | printf "\n" |
| 67 | ltim = tim |
| 68 | } |