nexmon – Blame information for rev 1
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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1 | office | 1 | BEGIN { |
| 2 | # we need the number of bytes in a packet to do the output |
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| 3 | # in packet numbers rather than byte numbers. |
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| 4 | if (packetsize <= 0) |
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| 5 | packetsize = 512 |
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| 6 | expectNext = 1 |
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| 7 | lastwin = -1 |
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| 8 | } |
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| 9 | { |
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| 10 | # convert tcp trace to send/ack form. |
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| 11 | n = split ($1,t,":") |
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| 12 | tim = t[1]*3600 + t[2]*60 + t[3] |
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| 13 | if (NR <= 1) { |
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| 14 | tzero = tim |
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| 15 | ltim = tim |
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| 16 | OFS = "\t" |
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| 17 | } |
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| 18 | if ($6 != "ack") { |
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| 19 | # we have a data packet record: |
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| 20 | # ignore guys with syn, fin or reset 'cause we |
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| 21 | # can't handle their sequence numbers. Try to |
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| 22 | # detect and add a flag character for 'anomalies': |
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| 23 | # * -> re-sent packet |
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| 24 | # - -> packet after hole (missing packet(s)) |
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| 25 | # # -> odd size packet |
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| 26 | if ($5 !~ /[SFR]/) { |
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| 27 | i = index($6,":") |
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| 28 | j = index($6,"(") |
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| 29 | strtSeq = substr($6,1,i-1) |
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| 30 | endSeq = substr($6,i+1,j-i-1) |
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| 31 | len = endSeq - strtSeq |
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| 32 | id = endSeq |
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| 33 | if (! timeOf[id]) |
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| 34 | timeOf[id] = tim |
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| 35 | if (endSeq - expectNext < 0) |
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| 36 | flag = "*" |
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| 37 | else { |
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| 38 | if (strtSeq - expectNext > 0) |
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| 39 | flag = "-" |
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| 40 | else if (len != packetsize) |
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| 41 | flag = "#" |
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| 42 | else |
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| 43 | flag = " " |
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| 44 | expectNext = endSeq |
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| 45 | } |
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| 46 | printf "%7.2f\t%7.2f\t%s send %s %d", tim-tzero, tim-ltim,\ |
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| 47 | flag, $5, strtSeq |
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| 48 | if (++timesSent[id] > 1) |
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| 49 | printf " (%.2f) [%d]", tim - timeOf[id], timesSent[id] |
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| 50 | if (len != packetsize) |
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| 51 | printf " <%d>", len |
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| 52 | } |
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| 53 | } else { |
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| 54 | id = $7 |
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| 55 | |||
| 56 | printf "%7.2f\t%7.2f\t%s ack %s %d", tim-tzero, tim-ltim,\ |
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| 57 | flag, $5, id |
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| 58 | if ($9 != lastwin) { |
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| 59 | printf " win %d", $9 |
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| 60 | lastwin = $9 |
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| 61 | } |
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| 62 | printf " (%.2f)", tim - timeOf[id] |
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| 63 | if (++timesAcked[id] > 1) |
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| 64 | printf " [%d]", timesAcked[id] |
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| 65 | } |
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| 66 | printf "\n" |
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| 67 | ltim = tim |
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| 68 | } |