Commit graph

48 commits

Author SHA1 Message Date
Sami Kerola
7f3d553c7f
add --snet-alarms option to suppress excess range alarms
Some users may not want to have alarms about ranges that are part of a
shared-network, so allow them to suppress such.

Requested-by: Frank Bulk <fbulk@mypremieronline.com>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2015-11-27 23:42:23 +00:00
Sami Kerola
535dfc4fc2
portability: Solaris 10 does not have err.h
Use error(3) function, that has gnulib portability fixes, instead of err(3)
and warn(3) family.

Reported-by: Anton Tkachev <antont@bk.ru>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2015-10-26 22:29:32 +00:00
Sami Kerola
cfbd69c20b maint: remove unnecessary braces, spaces, update gnulib .gitignore
Improve code readability, and small maintenance.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2014-11-15 09:44:28 +00:00
Sami Kerola
e09f655a7b add appropriate sorting function for struct leases_t
The HASH_SORT in analyze needs this.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2014-08-09 19:28:23 +01:00
Sami Kerola
965875d20b declare global variables only once
Global variable declarations belong near main, and the header has to have
extern reference to them.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2014-08-09 19:09:04 +01:00
Sami Kerola
4392a5b917 reindent all files
And update the indent.pro to match with the style I like.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2014-07-20 18:05:00 +01:00
Sami Kerola
d2d8abd660 various: fix memory leaks
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2013-11-03 14:30:37 +00:00
Sami Kerola
8da98bbc89 various: split functions to IPv4 and IPv6 versions
The code selection will be set with function pointer, which avoids
numerous IP version checks.  As a result with some inputs the analysis
runs quicker.  Most users will not notice much of difference.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2013-09-21 12:37:52 +01:00
Sami Kerola
97c6f0292f getdata: split busy function to segments used via function pointer
When it is known IPv4 is in use there is no need to spend time with if
statements checking whether IPv6 is in use.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2013-09-18 00:56:54 +01:00
Sami Kerola
06ffa5ed04 xstrstr: speed up analysis by avoiding string comparisons
With large input one should see cut 15% for overall run time.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2013-08-31 00:30:28 +01:00
Sami Kerola
28f1e8c54c output: allow user to ignore small ranges and shared networks
Some have configuration which combines small ranges such as one host, and
greater address ranges that are important to monitor.  Especially the one
host ranges tend to cause a lot of false-positive alarms, as they are
immediately 100% full when a machine requests an address.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2013-07-12 19:29:44 +01:00
Sami Kerola
8dba1c749d gnulib: add gnulib modules
Some systems, such as freebsd, does not have program_invocation_short_name
available.  There are also problems finding AF_INET{,6} definitions.

CC: Peter Fraser <p_fraser@hotmail.com>
Reported-by: Ryan Steinmetz <zi@freebsd.org>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2013-05-11 17:09:25 +01:00
Sami Kerola
c3e492165c cppcheck: fix variable scoping
[src/dhcpd-pools.c:68]: (style) The scope of the variable 'c' can be reduced.
[src/getdata.c:210]: (style) The scope of the variable 'c' can be reduced.
[src/hash.c:102]: (style) The scope of the variable 'l' can be reduced.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2013-04-05 23:13:10 +01:00
Sami Kerola
d3ee104a59 clean up: move global variables to config structure
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-12-09 22:56:07 +00:00
Sami Kerola
f1411858cb backup counting: fix output regression
The backup count was not printed at all.  This bug was introduced in
version 2.17 (May 2012) when the uthash was taken in use.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-12-09 22:15:14 +00:00
Sami Kerola
3471c91796 docs: add doxygen tags, configuration file, and autotooling
When ./configure --enable-doxygen is used one can browse internal api
documentation from docs/html directory.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-12-09 21:06:32 +00:00
Sami Kerola
fdc560bab9 ouput format: fix active lease printing
Earlier ethernet address collection did not remove duplicated.  Basically
the problem was the same as in problem fixed in commit
ae7747db87, but this time affecting only
the ethernet addresses.  The fix is, as one can see, to make ethernet
collection to share structure with the lease, so that if one is wrong
both are wrong the same way.

Reported-by: Gilles Bouthenot <gilles.bouthenot@univ-fcomte.fr>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-12-07 21:55:06 +00:00
Gilles Bouthenot
a302bc6829 output: add json format support
Reviewed-by: Sami Kerola <kerolasa@iki.fi>
Signed-off-by: Gilles Bouthenot <gilles.bouthenot@univ-fcomte.fr>
2012-12-04 21:30:09 +00:00
Cheer Xiao
a57d399643 IPv6: add DHCPv6 support
The DHCP version is determined according to the first IP address that
appears in the configuration file.  Caveat; counters are of native long
type.  Since IPv6 address space has 2^128 addresses, they are subject to
overflow.

[Sami Kerola:  This commit also fixed a percent sorting bug, which has
been broken always.  See changes ret_percent() for the fix.]

CC: LI Zimu <lzm@cernet.edu.cn>
CC: Xing Li <xing@cernet.edu.cn>
Reviewed-by: Sami Kerola <kerolasa@iki.fi>
Signed-off-by: Cheer Xiao <xiaqqaix@gmail.com>
2012-12-02 20:35:54 +00:00
Sami Kerola
6684772550 tools: add indent command configuration file
And reindent all files.

Reference: http://www.gnu.org/software/indent/
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-11-28 19:57:19 +00:00
Cheer Xiao
88d989bbe2 Fix spelling mistakes. 2012-11-20 20:53:30 +00:00
Sami Kerola
ab699e71ad build-sys: add gnulib
This will mean better portability, and a good reason to get rid of
various portability autotools directives which where part of this
project.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-11-05 00:03:03 +00:00
Sami Kerola
b3e02ce0ba all: fix compiler warninings
Use compiler warnings from coreutils to check nothing complains, and
fix everything that did.

CFLAGS='-Wall -W -Wformat-y2k -Wformat-security -Winit-self
-Wmissing-include-dirs -Wunused -Wunknown-pragmas -Wstrict-aliasing
-Wshadow -Wpointer-arith -Wbad-function-cast -Wcast-align
-Wwrite-strings -Wmissing-declarations -Wmissing-noreturn -Wpacked
-Winvalid-pch -Wvolatile-register-var -Wdisabled-optimization
-Woverlength-strings -Wbuiltin-macro-redefined -Wmudflap
-Wpacked-bitfield-compat -Wsync-nand -Wattributes -Wcoverage-mismatch
-Wabi -Wcpp -Wdeprecated -Wdeprecated-declarations -Wdiv-by-zero
-Wendif-labels -Wextra -Wformat-contains-nul -Wformat-extra-args
-Wformat-zero-length -Wformat=2 -Wmultichar -Wnormalized=nfc -Woverflow
-Wpointer-to-int-cast -Wpragmas -Wsuggest-attribute=noreturn
-Wtrampolines -Wno-sign-compare -Wno-unused-parameter
-Wsuggest-attribute=noreturn -Wno-format-nonliteral -Wno-logical-op
-fdiagnostics-show-option -funit-at-a-time'

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-07-17 17:59:39 +02:00
Sami Kerola
42dd80aeac alarming: make native nagios support to dhcpd-pools
This commit makes integrating the command with nagios much easier.

$ dhcpd-pools -c dhcpd.conf -l dhcpd.leases --critical 80 --warning 75
CRITICAL: dhcpd-pools: Ranges; crit: 14 warn: 22 ok: 220 Shared nets; crit: 1 warn: 0 ok: 4

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-06-24 16:40:25 +02:00
Sami Kerola
3ef5d6c07f output: verify stream status when closing files
Includes also closing stdout and stderr at the end of execution.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-03-22 21:35:25 +01:00
Sami Kerola
5ea17c9754 build-sys: C99 has true and false
It is pointless to define true and false when standard headers can do
that.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-11-13 22:09:10 +01:00
Sami Kerola
f6807f8a6d build: smatch compiler warnings fixed
dhcpd-pools.c:221:20: warning: non-ANSI function declaration of function 'prepare_memory'
getdata.c +178 parse_leases(112) error: potential null derefence 'macstring'.
getdata.c +179 parse_leases(113) error: potential null derefence 'macaddr_p'.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-09-10 11:21:19 +02:00
Sami Kerola
f51f2e9fe1 licensing: set placeholder properly
I should have done this at commit a31fd0d97a

sed -i 's/<COPYRIGHT HOLDER>/THE AUTHOR AND CONTRIBUTORS/'

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-07-09 10:18:53 +02:00
Sami Kerola
76915512b2 maint: coding style fixes
Remove unnecessary type casting, move .gitignore file contents to
right location, reindent to use Linux coding style, fix few type
mismatches, clean up to help & version output and hint compiler
call to these functions will end program.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-07-08 21:41:35 +02:00
Sami Kerola
26db4eafdc all: include-what-you-see fixes
After uint32_t fix from 1e82461875
it was good idea to check which headers where needed where. And
generally clean up the includes while doing the check.
2011-07-08 18:02:36 +02:00
Sami Kerola
a31fd0d97a licensing: use FreeBSD license (was GNUv3)
This change will also remove getopt source code and headers,
which has GNU license that I cannot change.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-06-21 22:54:03 +02:00
Sami Kerola
dd5b77b62c prepare_memory bug: initialization missing
The lack of initialization may have cause unexpected outputs to
some users some times. That sort of behavior is also known by
name a bug.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-06-21 22:39:17 +02:00
Sami Kerola
e299e7fce2 headers: include-what-you-use fixes
Usage of includes are set up the way found to be in use, with a help of
magnificent utility.

http://code.google.com/p/include-what-you-use/

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-06-08 20:59:56 +02:00
Sami Kerola
c81af2df45 shared network names to be dynamically allocated
This patch is a step a head to make data all structures
completely dynamic. After this the next obvious thing to do is to
make shared networks struct a linked list instead of a list.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-04-11 20:52:40 +02:00
Sami Kerola
b492802dfa make range allocation dynamic
This is a test fix after commit

5cbe8d07fb

to see what can be done. Truth is that not much. I could fix how
ranges are allocated, but the fact there is pointers to shared
networks and network names reallocating the memory spaces is not
really going to work. The only way to truly fix this issue is to
create better data structures. As you can expect that is a major
change, and will take some time to implement.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-04-10 19:12:29 +02:00
Sami Kerola
f6880ed5f4 clean_up: checking errno at exit does not make sense
It seems that at least FreeBSD is setting errno when malloc is
successful. There is a change that other operating systems will
do similar things with same, or other system calls, and this will
invalidate the idea of checking errno at exit.

See also email list thread for further information.

http://lists.freebsd.org/pipermail/freebsd-questions/2011-April/229150.html

Reported-by: Roar Pettersen <rope1968@gmail.com>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-04-09 17:38:54 +02:00
Sami Kerola
93bcd305c4 dhcpd-pools.h: function attributes declarations
Advice compiler about functions to generate better optimization
and argument checks.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-03-19 11:48:48 +01:00
Sami Kerola
fdcfcd12d3 INSTALL file is unnecessary
Also few typos got to be fixed.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-02-08 22:52:11 +01:00
Sami Kerola
171ff1d704 Allow xml output with leases to use output file
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-02-08 22:11:49 +01:00
Sami Kerola
17429ef85b Copyright notice change to GNU license 3
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-02-08 20:33:09 +01:00
Sami Kerola
9cc94f1b9f Do not analyze if sort field selector is rubbish.
Error message also had a bug, it's changed to be over all more
helpful.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-01-22 22:50:14 +01:00
Sami Kerola
f32e023ecf Impossible to reach sections removed
With a bit of gcov analysis, and logical thinking, it was obvious
that section that got to be removed cannot be reach.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-01-22 21:54:38 +01:00
Sami Kerola
9169422e9b Not a syscall error, warn should be warnx.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-01-22 21:29:48 +01:00
Sami Kerola
849c8f5e73 Use what libc will provide
The eprintf removed and replaced with err & warn. Option parsing
no longer tries to find missing optargs, which are getopts should
notice. Few complier warnings got to be removed as well. Finally
the commments will no longer exceed standard terminal width.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-01-22 20:53:15 +01:00
Sami Kerola
c11cc921bc The xml output is dirty and marked as FIXME
The xml output does not use output file as all other outputs, it
has sections here and there while everything is supposed to be in
output.c, and finally the unnecessary field analysis loop made
program about 20% slower when xml was not asked.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-01-22 13:06:04 +01:00
Sami Kerola
ee35f8bb1f Arithmetic comparisons to be same way around
In writing arithmetic comparisons, use "<" and "<=" rather than
">" and ">=". For some justification, read this:

http://thread.gmane.org/gmane.comp.version-control.git/3903/focus=4126

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-01-22 12:35:18 +01:00
Sami Kerola
ff572a4a55 After fopen in ouput ioctl does like /dev/null which cause
ENOTTY, and clean_up will see that without this reset. At least
linux does this, and possibly some other systems. There's a
report from FreeBSD 8.0 which matches quite well with the
symptom.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-01-22 00:14:52 +01:00
Sami Kerola
74aef1c34e Import from release candidate 2.13.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-01-21 18:15:50 +01:00