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Phil Sutter 7c87c7fed1 lib/bpf: Fix bytecode-file parsing
The signedness of char type is implementation dependent, and there are
architectures on which it is unsigned by default. In that case, the
check whether fgetc() returned EOF failed because the return value was
assigned an (unsigned) char variable prior to comparison with EOF (which
is defined to -1). Fix this by using int as type for 'c' variable, which
also matches the declaration of fgetc().

While being at it, fix the parser logic to correctly handle multiple
empty lines and consecutive whitespace and tab characters to further
improve the parser's robustness. Note that this will still detect double
separator characters, so doesn't soften up the parser too much.

Fixes: 3da3ebfca8 ("bpf: Make bytecode-file reading a little more robust")
Cc: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Phil Sutter <phil@nwl.cc>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
2017-09-04 12:06:50 -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 Convert harmful calls to strncpy() to strlcpy() 2017-09-01 12:10:54 -07:00
include utils: Implement strlcpy() and strlcat() 2017-09-01 12:10:54 -07:00
ip iplink: double the buffer size also in iplink_get() 2017-09-01 14:15:00 -07:00
lib lib/bpf: Fix bytecode-file parsing 2017-09-04 12:06:50 -07:00
man ss: fix help/man TCP-STATE description for listening 2017-08-24 11:01:34 -07:00
misc lnstat_util: Make sure buffer is NUL-terminated 2017-09-01 12:10:54 -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_util: No need to terminate an snprintf'ed buffer 2017-09-01 12:10:54 -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