Bug 454703 - netdump uses hard-coded remote port for server
Summary: netdump uses hard-coded remote port for server
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: netdump
Version: 4.6
Hardware: All
OS: Linux
medium
medium
Target Milestone: rc
: ---
Assignee: Neil Horman
QA Contact:
URL:
Whiteboard:
Keywords:
Depends On:
Blocks: 391511
TreeView+ depends on / blocked
 
Reported: 2008-07-09 20:06 UTC by Bryn M. Reeves
Modified: 2018-10-20 02:46 UTC (History)
3 users (show)

(edit)
Clone Of:
(edit)
Last Closed: 2009-05-18 20:03:03 UTC


Attachments (Terms of Use)
use the client's local port when replying (4.30 KB, patch)
2008-07-09 20:18 UTC, Bryn M. Reeves
no flags Details | Diff


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2009:0486 normal SHIPPED_LIVE netdump bug fix update 2009-05-18 13:17:10 UTC

Description Bryn M. Reeves 2008-07-09 20:06:20 UTC
Description of problem:
The netdump server uses a hard coded remote port when replying to netdump clients:

netdumpclient.c:
netdump_client_send_reboot ()
[...]
  addr.sin_port = htons(NETDUMP_PORT);
  addr.sin_addr.s_addr = htonl(reboot->ip);

netdump_client_send_request ()
[...]
  addr.sin_port = htons(NETDUMP_PORT);
  addr.sin_addr.s_addr = htonl(client->ip);

This prevents the server communicating with clients that have defined a
non-default LOCALPORT in /etc/sysconfig/netdump.

Version-Release number of selected component (if applicable):
0.7.16-14.EL

How reproducible:
100%

Steps to Reproduce:
1. Configure a netdump client with LOCALPORT!=6666
2. Force a crash on the client

Actual results:
Netdump server replies to port 6666, netdump handshake fails

Expected results:
Netdump server replies to the client's LOCALPORT

Additional info:

Comment 1 Bryn M. Reeves 2008-07-09 20:18:52 UTC
Created attachment 311416 [details]
use the client's local port when replying

Comment 3 Neil Horman 2008-07-11 19:45:17 UTC
fixed in -21.el5, thanks!

Comment 6 Bryn M. Reeves 2008-07-14 14:52:45 UTC
Cloned for el5 EPEL as bug 455265

Comment 9 RHEL Product and Program Management 2008-09-05 17:09:18 UTC
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update
release.

Comment 16 errata-xmlrpc 2009-05-18 20:03:03 UTC
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2009-0486.html


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