Commit Graph

34 Commits

Author SHA1 Message Date
Hartmut Brandt
0bf56da32d Merge release 1.14 of bsnmp. 2020-04-01 15:25:16 +00:00
Gleb Smirnoff
3231251399 Timer interval is correctly counted in ticks (1/100 s) in
mibif_reset_hc_timer().  Multiplication by 10 is erroneous
and is probably a blind copy and paste from next function.

PR:		132993
Submitted by:	Vitezslav Novy <vnovy vnovy.net>
2019-01-09 05:53:59 +00:00
Eugene Grosbein
1a498d2e68 bsnmpd(8): fix and optimize interface description processing
* correctly prepare a buffer to obtain interface description from a kernel and
  truncate long description instead of dropping it altogether and
  spamming logs;
* skip calling strlen() for each description and each SNMP request
  for MIB-II/ifXTable's ifAlias.
* teach bsnmpd to allocate memory dynamically for interface descriptions
  to decrease memory usage for common case and not to break
  if long description occurs;

PR:			217763
Reviewed by:		harti and others
MFC after:		1 week
Differential Revision:	https://reviews.freebsd.org/D16459
2018-08-18 10:58:44 +00:00
Hartmut Brandt
8e9b3e7071 Update bsnmp to version 1.13. This does not bring user-visible changes.
For developers gensnmptree can now generate functions for enums to convert
between enums and strings and to check the validity of a value.
The sources in FreeBSD are now in sync with the upstream which allows to
bring in IPv6 modifications.
2018-07-03 08:44:40 +00:00
Brooks Davis
3a4fc8a8a1 Remove support for the Arcnet protocol.
While Arcnet has some continued deployment in industrial controls, the
lack of drivers for any of the PCI, USB, or PCIe NICs on the market
suggests such users aren't running FreeBSD.

Evidence in the PR database suggests that the cm(4) driver (our sole
Arcnet NIC) was broken in 5.0 and has not worked since.

PR:		182297
Reviewed by:	jhibbits, vangyzen
Relnotes:	yes
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D15057
2018-04-13 21:18:04 +00:00
Enji Cooper
0ab7046959 Use nitems(mib) instead of hardcoding mib's length when calling sysctl(3)
MFC after:	3 days
2017-01-09 01:47:00 +00:00
Enji Cooper
a0e0e1ffa5 MIB-II: use strlcpy instead of strcpy when copying {descr,name}
This is of course to avoid buffer overruns

The remaining strcpy instance in the module needs to be audited for
correctness

MFC after:	1 week
Reported by:	Coverity
CID:		1006827, 1006828
2016-12-31 12:03:25 +00:00
Enji Cooper
02ff676c4d MIB-II: use strlcpy when copying interface names to .ifr_name
.ifra_name is assumed to be NUL terminated; using strlcpy(3)
ensures that it's indeed NUL terminated whereas strncpy does
not.

Tested and verified as follows with a combination of ifconfig,
snmpget, and snmpset:

  % ifconfig create lo1 127.0.0.2/8
  % SNMPARGS="-v 3 -n '' -u bsnmp -A bsnmptest -l authPriv -a sha -x des -X bsnmptest localhost"
  % snmpget $SNMPARGS IF-MIB::ifAdminStatus.4
  IF-MIB::ifAdminStatus.4 = INTEGER: up(1)
  % snmpset $SNMPARGS IF-MIB::ifAdminStatus.4 i 2
  IF-MIB::ifAdminStatus.4 = INTEGER: down(2)
  % snmpget $SNMPARGS IF-MIB::ifAdminStatus.4
  IF-MIB::ifAdminStatus.4 = INTEGER: down(2)
  % snmpset $SNMPARGS IF-MIB::ifAdminStatus.4 i 1
  IF-MIB::ifAdminStatus.4 = INTEGER: up(1)
  % snmpget $SNMPARGS IF-MIB::ifAdminStatus.4
  IF-MIB::ifAdminStatus.4 = INTEGER: up(1)

MFC after:	2 weeks
Reported by:	Coverity
CID:		1009652-1009656, 1349850
2016-12-31 11:50:36 +00:00
Enji Cooper
8373993535 Guard against use-after-free after calling mibif_free(..)
Set variables to NULL after calling free.

Also, remove unnecessary if (x != NULL) checks before calling free(x)

MFC after:	1 week
2016-12-30 23:44:39 +00:00
Enji Cooper
2fd30e016e Fix whitespace in a comment and fixing a spelling error in a comment
MFC after:	3 days
2016-12-30 21:41:01 +00:00
Enji Cooper
e1d581b289 style(9): clean up trailing whitespace
MFC after:	3 weeks
2016-12-27 23:32:54 +00:00
Bjoern A. Zeeb
ce42ce038e Try to fix a bug introduced in r228623. We started to copy the ifa_msghdr
as otherwise platforms with strict alignment would break.  It's unclear
to me if there's also a problem with access to the address list following
the structure.  However we never copied the address list after the structure
and thus are pointing at random memory.  For now just use a pointer to the
original memory for accessing the address list making it at least work on
platforms with weak memory access.

PR:			195445
Reported by:		wolfgang lyxys.ka.sub.org
Tested by:		wolfgang lyxys.ka.sub.org (x86)
MFC after:		3 days
2016-02-03 11:03:44 +00:00
Hartmut Brandt
5edd0d3a4d Fill the ifAlias leaf of the ifXTable with the interface description
if there is one available and it fits into the maximum size (64 characters).
2016-01-21 16:11:20 +00:00
Gleb Smirnoff
8cc5fb3d91 Restore the ipNetToMedia MIB, that was broken with new ARP commit
in the r186119.

Submitted by:	Konstantin Kukushkin <dark rambler-co.ru>
2013-04-25 16:23:22 +00:00
Bjoern A. Zeeb
1e629ba90f Adter r228571 unbreak architectures with strict alignment rules
by copying rather than casting.
2011-12-17 11:06:22 +00:00
Pyun YongHyeon
869ae66dfc Fix a typo introduced in r210936 which broke build. 2010-08-06 18:44:07 +00:00
John Baldwin
d99d8e2e38 Ethernet vlan(4) interfaces have valid Ethernet link layer addresses but
use a different interface type (IFT_L2VLAN vs IFT_ETHER).  Treat IFT_L2VLAN
interfaces like IFT_ETHER interfaces when handling link layer addresses.

Reviewed by:	syrinx (bsnmpd)
MFC after:	1 week
2010-08-06 15:09:21 +00:00
Shteryana Shopova
bd96183d5e Fix a problem with high CPU consumption (up to 30%) by bsnmpd on a loaded system.
Instead of constantly calling the mibII_idle function when the server is not busy
call the function only once every 10 seconds to avoid bsnmpd constantly doing
gettimeofday syscalls. Make the idle polling interval confugurable via
begemotIfDataPoll.

Reported and tested by: misho (at) aitbg (dot) com
Oked by: harti
MFC after:	1 week
2009-12-03 16:08:00 +00:00
Warner Losh
26ea346865 Add an extra (void *) cast. The struct if_msghdr has an 8 byte
alignment requirement, while rt_msghdr has a 4 byte alignment
requirement.  The root cause is that if_msghdr has an struct if_data
which has an 8-byte alignment requirement due to a time_t that's
embedded in it.  On MIPS, time_t is a 64-bit number, so must be 64-bit
aligned.

Since we don't access ifm_data.ifi_epoch, a simple cast is all that's
necessary here.  It is likely the case that ifi_epoch should *NOT* be
a time_t because it is an uptime (time delta) an not an absolute time
since 1970.  u_long is likely sufficient there since that gives an
uptime of 136 years will suffice for the foreseeable future.
2009-02-18 19:59:27 +00:00
Hartmut Brandt
ed0e376bca Flatten bsnmp vendor area. 2008-12-20 16:44:43 +00:00
Qing Li
6e6b3f7cbc This main goals of this project are:
1. separating L2 tables (ARP, NDP) from the L3 routing tables
2. removing as much locking dependencies among these layers as
   possible to allow for some parallelism in the search operations
3. simplify the logic in the routing code,

The most notable end result is the obsolescent of the route
cloning (RTF_CLONING) concept, which translated into code reduction
in both IPv4 ARP and IPv6 NDP related modules, and size reduction in
struct rtentry{}. The change in design obsoletes the semantics of
RTF_CLONING, RTF_WASCLONE and RTF_LLINFO routing flags. The userland
applications such as "arp" and "ndp" have been modified to reflect
those changes. The output from "netstat -r" shows only the routing
entries.

Quite a few developers have contributed to this project in the
past: Glebius Smirnoff, Luigi Rizzo, Alessandro Cerri, and
Andre Oppermann. And most recently:

- Kip Macy revised the locking code completely, thus completing
  the last piece of the puzzle, Kip has also been conducting
  active functional testing
- Sam Leffler has helped me improving/refactoring the code, and
  provided valuable reviews
- Julian Elischer setup the perforce tree for me and has helped
  me maintaining that branch before the svn conversion
2008-12-15 06:10:57 +00:00
Hartmut Brandt
f929683df1 Vendor patch: improve readability by using the IF_Mbps macro.
Submitted by:	glebius
2006-10-30 16:56:38 +00:00
Hartmut Brandt
748b5b1ebd Virgin import of bsnmpd 1.12 2006-02-27 16:16:18 +00:00
Hartmut Brandt
c6a4e65805 Vendor fix: make mibII HC counters really 64-bit on 32-bit platforms by polling
the kernel periodically.

Submitted by:	glebius (partly)
2006-02-13 14:11:18 +00:00
Hartmut Brandt
e6ef6163fd Vendor patch: Make the link traps more RFC-conform.
Submitted by:	glebius
2006-02-10 16:49:49 +00:00
Hartmut Brandt
9d165d9f13 Vendor fix: the routing table can change while we are fetching it from
the kernel. Instead of complaining if we get an ENOMEM (meaning it got
larger than our buffer is) reallocate the buffer and loop.

Submitted by: maxim
2006-01-10 11:59:31 +00:00
Hartmut Brandt
165c5d31cb Virgin import of bsnmpd 1.11 2005-10-04 14:41:06 +00:00
Hartmut Brandt
9ed6112d51 Apply a vendor patch: silence gcc on arm (alignent when casting pointer).
Submitted by:	Olivier Houchard <cognet@ci0.org>
2005-05-25 12:00:03 +00:00
Hartmut Brandt
69292ced51 Virgin import of bsnmpd 1.10 2005-05-23 11:19:11 +00:00
Hartmut Brandt
94caccb357 Virgin import of bsnmpd 1.8 2005-02-28 17:27:11 +00:00
Hartmut Brandt
896052c10f Virgin import of bsnmpd 1.7 2004-08-06 13:38:30 +00:00
Hartmut Brandt
8eecd77ad5 Import of bsnmpd 1.6 2004-04-14 16:20:14 +00:00
Hartmut Brandt
70af00a124 Virgin import of bsnmpd 1.5a 2004-01-23 10:44:47 +00:00
Hartmut Brandt
f06ca4af18 Virgin import of bsnmp 1.4 2003-11-10 08:53:38 +00:00