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Be clear about which max-scan-delay options are set with -T4 and -T5

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dmiller
2021-05-13 21:57:13 +00:00
parent 14c7f87d6f
commit a889c3ebe0
2 changed files with 8 additions and 4 deletions
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10
docs/refguide.xml
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@@ -3071,12 +3071,14 @@ seconds, respectively, between probes. <option>T3</option><indexterm><primary><
default behavior, which includes parallelization.
<option>-T4</option>
does the equivalent of <option>--max-rtt-timeout 1250ms --min-rtt-timeout 100ms
--initial-rtt-timeout 500ms --max-retries 6</option> and sets the maximum TCP scan delay
to 10 milliseconds. <option>T5</option>
--initial-rtt-timeout 500ms --max-retries 6</option> and sets the maximum TCP and SCTP scan delay
to 10ms. <option>T5</option>
does the equivalent of
<option>--max-rtt-timeout 300ms --min-rtt-timeout 50ms
--initial-rtt-timeout 250ms --max-retries 2 --host-timeout 15m --script-timeout 10m</option> as well as
setting the maximum TCP scan delay to 5&nbsp;ms.</para>
--initial-rtt-timeout 250ms --max-retries 2 --host-timeout 15m --script-timeout 10m --max-scan-delay</option> as well as
setting the maximum TCP and SCTP scan delay to 5ms.
Maximum UDP scan delay is not set by <option>T4</option> or <option>T5</option>, but it can be set with the <option>--max-scan-delay</option> option.
</para>
</listitem>
</varlistentry>

2
nmap.cc
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@@ -1335,6 +1335,7 @@ void parse_options(int argc, char **argv) {
o.setInitialRttTimeout(500);
o.setMaxTCPScanDelay(10);
o.setMaxSCTPScanDelay(10);
// No call to setMaxUDPScanDelay because of rate-limiting and unreliability
o.setMaxRetransmissions(6);
} else if (*optarg == '5' || (strcasecmp(optarg, "Insane") == 0)) {
o.timing_level = 5;
@@ -1344,6 +1345,7 @@ void parse_options(int argc, char **argv) {
o.host_timeout = 900000;
o.setMaxTCPScanDelay(5);
o.setMaxSCTPScanDelay(5);
// No call to setMaxUDPScanDelay because of rate-limiting and unreliability
o.setMaxRetransmissions(2);
#ifndef NOLUA
o.scripttimeout = 600; // 10 minutes