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Phil Sutter 6c6bbc30f4 ss: Fix for added diag support check
Commit 9f66764e30 ("libnetlink: Add test for error code returned from
netlink reply") changed rtnl_dump_filter_l() to return an error in case
NLMSG_DONE would contain one, even if it was ENOENT.

This in turn breaks ss when it tries to dump DCCP sockets on a system
without support for it: The function tcp_show(), which is shared between
TCP and DCCP, will start parsing /proc since inet_show_netlink() returns
an error - yet it parses /proc/net/tcp which doesn't make sense for DCCP
sockets at all.

On my system, a call to 'ss' without further arguments prints the list
of connected TCP sockets twice.

Fix this by introducing a dedicated function dccp_show() which does not
have a fallback to /proc, just like sctp_show(). And since tcp_show()
is no longer "multi-purpose", drop it's socktype parameter.

Fixes: 9f66764e30 ("libnetlink: Add test for error code returned from netlink reply")
Signed-off-by: Phil Sutter <phil@nwl.cc>
2017-08-30 08:18:13 -07:00
bash-completion tc: bash-completion: Add support for matchall 2017-02-07 11:44:53 -08:00
bridge change how Config is used in Makefile's 2017-08-09 09:10:52 -07:00
devlink devlink: Check return code of strslashrsplit() 2017-08-21 17:28:03 -07:00
doc iproute2: add support for GRE ignore-df knob 2017-07-20 17:25:54 -07:00
etc/iproute2 whitespace cleanup 2017-01-12 17:31:20 -08:00
examples examples: Some shell fixes to cbq.init 2017-08-18 09:11:00 -07:00
genl change how Config is used in Makefile's 2017-08-09 09:10:52 -07:00
include rdma: Add basic infrastructure for RDMA tool 2017-08-21 17:07:44 -07:00
ip ipntable: Avoid memory allocation for filter.name 2017-08-24 14:53:14 -07:00
lib lib/libnetlink: Don't pass NULL parameter to memcpy() 2017-08-24 15:22:10 -07:00
man ss: fix help/man TCP-STATE description for listening 2017-08-24 11:01:34 -07:00
misc ss: Fix for added diag support check 2017-08-30 08:18:13 -07:00
netem netem/maketable: Check return value of fscanf() 2017-08-24 15:22:10 -07:00
rdma rdma: fix duplicate initialization in port_names 2017-08-24 15:02:16 -07:00
schema bridge: add json schema for bridge fdb show 2016-07-20 12:02:02 -07:00
tc tc: use named initializer for default mqprio options 2017-08-24 15:28:15 -07:00
testsuite testsuite: search for kernel config in /boot 2017-02-17 15:26:30 -08:00
tipc tipc/bearer: Prevent NULL pointer dereference 2017-08-24 14:49:44 -07:00
.gitignore testsuite: Generate nlmsg blob at runtime 2017-02-09 17:28:48 -08:00
COPYING Update address of FSF in license 2008-03-08 13:31:03 -08:00
Makefile rdma: Add basic infrastructure for RDMA tool 2017-08-21 17:07:44 -07:00
README README: update mail address and download location 2013-01-18 09:54:58 -08:00
README.decnet Decnet documentation update 2005-06-13 18:47:56 +00:00
README.devel iproute2: fix minor typo in comments 2011-07-11 10:11:09 -07:00
README.distribution README cleanup's 2012-01-03 15:04:55 -08:00
README.iproute2+tc tc, bpf: finalize eBPF support for cls and act front-end 2015-04-10 13:31:19 -07:00
README.lnstat Rename: misc/README.lnstat -> README.lnstat 2004-10-19 20:24:47 +00:00
configure configure: fix elftest when warnings enabled 2016-12-14 19:11:02 -08:00

README

This is a set of utilities for Linux networking.

Information:
    http://www.linuxfoundation.org/collaborate/workgroups/networking/iproute2

Download:
    http://www.kernel.org/pub/linux/utils/net/iproute2/

Repository:
    git://git.kernel.org/pub/scm/linux/kernel/git/shemminger/iproute2.git

How to compile this.
--------------------
1. libdbm

arpd needs to have the db4 development libraries. For Debian
users this is the package with a name like libdb4.x-dev.
DBM_INCLUDE points to the directory with db_185.h which
is the include file used by arpd to get to the old format Berkeley
database routines.  Often this is in the db-devel package.

2. make

The makefile will automatically build a Config file which
contains whether or not ATM is available, etc.

3. To make documentation, cd to doc/ directory , then
   look at start of Makefile and set correct values for
   PAGESIZE=a4		, ie: a4 , letter ...	(string)
   PAGESPERPAGE=2	, ie: 1 , 2 ...		(numeric)
   and make there. It assumes, that latex, dvips and psnup
   are in your path.

4. This package includes matching sanitized kernel headers because
   the build environment may not have up to date versions. See Makefile
   if you have special requirements and need to point at different
   kernel include files.

Stephen Hemminger
stephen@networkplumber.org

Alexey Kuznetsov
kuznet@ms2.inr.ac.ru