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kbandla / libdnet

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"dnet intf show" fails when Infiniband interface present, affects 'nmap' #26

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
What steps will reproduce the problem?
1. run "dnet intf show" on system with IB interface

What is the expected output?

   Something similar to output from "ip addr show".

3: ib0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 2044 qdisc pfifo_fast qlen 50000
    link/infiniband 80:00:04:04:fe:80:00:00:00:00:00:00:00:02:c9:02:00:21:d3:a1 brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff
    inet 172.29.60.19/24 brd 172.29.60.255 scope global ib0

4: ib1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 2044 qdisc pfifo_fast qlen 50000
    link/infiniband 80:00:04:05:fe:80:00:00:00:00:00:00:00:02:c9:02:00:21:d3:a2 brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff
    inet 172.29.61.19/24 brd 172.29.61.255 scope global ib1
    inet6 fe80::202:c902:21:d3a2/64 scope link
       valid_lft forever preferred_lft forever

What do you see instead?

   lt-dnet: intf_loop: Invalid argument

What version of the product are you using?

SVN 665, pulled 8/23/12

On what operating system?

CentOS 5.8

Please provide any additional information below.

kernel 2.6.18-308.8.1.el5

Works on nearly identical system that
has no Infiniband interfaces.

Original issue reported on code.google.com by starligh...@gmail.com on 24 Aug 2012 at 1:11

GoogleCodeExporter commented 9 years ago 
'nmap-dev' issued a patch to work-around this issue.
The 20-byte IB MAC is truncated, but it doesn't
fail and is good enough for 'nmap' to function.
The work-around also covers the RadioTap wifi
network driver.

Original comment by starligh...@gmail.com on 28 Aug 2012 at 9:11