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++ sniff-host command

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Nico Schottelius 2019-03-21 20:36:01 +01:00
commit ece52e4915
2 changed files with 17 additions and 2 deletions
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8
doc/plan.org
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@ -111,10 +111,11 @@
| | - Create p4lang/p4-spec bug | | | | - Create p4lang/p4-spec bug | |
| | https://github.com/p4lang/p4-spec/issues/745 | | | | https://github.com/p4lang/p4-spec/issues/745 | |
| | | | | | | |
| 2019-03-21 | Meet Laurent #3 | | | 2019-03-21 | Meet Laurent #4 | |
| | - My dog ate my homework | | | | - My dog ate my homework | |
| | - Router solicitation for finding router on startup! | | | | - Router solicitation for finding router on startup! | |
| | - test.py for TDD | | | | - test.py for TDD | |
| | - Parsing icmp6 is not enough - one layer deeper | |
| | | | | | | |
| | | | | | | |
| 2019-03-30 | NAT64 1:1 table ICMP, ICMPv6 working | | | 2019-03-30 | NAT64 1:1 table ICMP, ICMPv6 working | |
@ -754,7 +755,7 @@ DEBUG:main:INCOMING: <Ether dst=00:00:0a:00:00:42 src=00:00:0a:00:00:01 type=0x
DEBUG:main:cpu = <CpuHeader task=ICMP6_GENERAL ingress_port=1 type=0x86dd |<Raw load='`\x00\x00\x00\x00 :\xff\xfe\x80\x00\x00\x00\x00\x00\x00\x02\x00\n\xff\xfe\x00\x00\x01 \x01\r\xb8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00B\x87\x00\x08+\x00\x00\x00\x00 \x01\r\xb8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00B\x01\x01\x00\x00\n\x00\x00\x01' |>> DEBUG:main:cpu = <CpuHeader task=ICMP6_GENERAL ingress_port=1 type=0x86dd |<Raw load='`\x00\x00\x00\x00 :\xff\xfe\x80\x00\x00\x00\x00\x00\x00\x02\x00\n\xff\xfe\x00\x00\x01 \x01\r\xb8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00B\x87\x00\x08+\x00\x00\x00\x00 \x01\r\xb8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00B\x01\x01\x00\x00\n\x00\x00\x01' |>>
DEBUG:main:reassambled=<Ether dst=00:00:0a:00:00:42 src=00:00:0a:00:00:01 type=0x86dd |<IPv6 version=6 tc=0 fl=0 plen=32 nh=ICMPv6 hlim=255 src=fe80::200:aff:fe00:1 dst=2001:db8::42 |<ICMPv6ND_NS type=Neighbor Solicitation code=0 cksum=0x82b res=0 tgt=2001:db8::42 |<ICMPv6NDOptSrcLLAddr type=1 len=1 lladdr=00:00:0a:00:00:01 |>>>> DEBUG:main:reassambled=<Ether dst=00:00:0a:00:00:42 src=00:00:0a:00:00:01 type=0x86dd |<IPv6 version=6 tc=0 fl=0 plen=32 nh=ICMPv6 hlim=255 src=fe80::200:aff:fe00:1 dst=2001:db8::42 |<ICMPv6ND_NS type=Neighbor Solicitation code=0 cksum=0x82b res=0 tgt=2001:db8::42 |<ICMPv6NDOptSrcLLAddr type=1 len=1 lladdr=00:00:0a:00:00:01 |>>>>
***** TODO Debug why neighbor discover does not work anymore ***** DONE Debug why neighbor discover does not work anymore
****** log ****** log
p4@ubuntu:~$ mx h1 tcpdump -lni any p4@ubuntu:~$ mx h1 tcpdump -lni any
sudo: unable to resolve host ubuntu sudo: unable to resolve host ubuntu
@ -788,6 +789,9 @@ DEBUG:main:reassambled=<Ether dst=00:00:0a:00:00:42 src=00:00:0a:00:00:01 type=
****** Do we have routing for fe80::/10? Probably not. Shouldn't we see it in the controller then? ****** Do we have routing for fe80::/10? Probably not. Shouldn't we see it in the controller then?
****** NDP is controller only! ****** NDP is controller only!
***** TODO Finish NDP in switch
****** TODO Need to set R/S/O bits
****** TODO Need to parse R/S/O bits
***** TODO Maybe merge v6_address and v6_networks - /128 is the same ***** TODO Maybe merge v6_address and v6_networks - /128 is the same
***** TODO Implement address learning? ***** TODO Implement address learning?
***** TODO Not sure whether we should react on router solicitation ***** TODO Not sure whether we should react on router solicitation

11
p4app/sniff-host Normal file
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@ -0,0 +1,11 @@
#!/bin/sh
set -x
host=$1
name=$2
now=$(date +%F-%H%M)
filename=${now}-${name}-${host}.pcap
intf=${host}-eth0
mx "$host" tcpdump -ni ${intf} -w "${filename}"