Hello, for the archives, I can't reproduce this anymore, can be closed.
Alf On Mon, Mar 06, 2017 at 11:02:47AM +0100, alf wrote: > Hello, > > (Initially sent to reyk@ 2 weeks ago, but he is most likely busy with > other things) > > I am struggling with the following phenomen: > > While snmpget and friends work just fine, p5-Net-SNMP fails with OpenBSD's > snmpd(8). > It looks to me like net-snmpd gives back a different OID > (1.3.6.1.6.3.15.1.1.4.0) in the > second packet then snmpd(8) (1.3.6.1.6.3.15.1.1.1.0) which gets interpreted > as an > error by the p5-Net-SNMP library while snmpget eats it without complaining. > > this works for both net-snmpd and OpenBSD's snmpd(8): > $ snmpget -v3 -u snmp -A xxxxxxxx -l authNoPriv localhost sysContact.0 > SNMPv2-MIB::sysContact.0 = STRING: [email protected] > $ > > This is from a -current amd64 system from 2-3 weeks ago. > > I have no idea if p5-Net-SNMP or snmpd(8) is wrong or if I am doing > something stupid, so here it goes:) > > Alf > > > How to repeat: > > $ doas cat /etc/snmpd.conf > ext_addr="127.0.0.1" > listen on $ext_addr > > system contact "[email protected]" > system location "right here" > > seclevel auth > user "snmp" authkey "xxxxxxxx" auth "hmac-md5" > > $ doas sed -e '/#/d' -e '/^$/d' < /etc/snmp/snmpd.conf > agentAddress udp:161 > view systemonly included .1.3.6.1.2.1.1 > view systemonly included .1.3.6.1.2.1.25.1 > rocommunity public default -V systemonly > rouser authOnlyUser > sysLocation Basement > sysContact Me <[email protected]> > sysServices 72 > proc mountd > proc ntalkd 4 > proc sendmail 10 1 > disk / 10000 > disk /var 5% > includeAllDisks 10% > load 12 10 5 > trapsink localhost public > iquerySecName internalUser > rouser internalUser > defaultMonitors yes > linkUpDownNotifications yes > extend test1 /bin/echo Hello, world! > extend-sh test2 echo Hello, world! ; echo Hi there ; exit 35 > master agentx > > $ cat spass.pl > #! /usr/bin/perl > > use strict; > use warnings; > > use Net::SNMP; > > my $OID_sysContact = '1.3.6.1.2.1.1.4.0'; > > my ($session, $error) = Net::SNMP->session( > -hostname => 'localhost', > -version => 'snmpv3', > -username => 'snmp', > -authprotocol => 'md5', > -authpassword => 'xxxxxxxx', > -maxmsgsize => 65507, # cosmetic, > match snmpget > ); > > if (!defined $session) { > printf "ERROR: %s.\n", $error; > exit 1; > } > > my $result = $session->get_request( > -varbindlist => [ $OID_sysContact ], > ); > > if (!defined $result) { > printf "ERROR: %s.\n", $session->error(); > $session->close(); > exit 1; > } > > printf "The sysContact for host '%s': '%s'.\n", > $session->hostname(), $result->{$OID_sysContact}; > > $session->close(); > > exit 0; > > > > $ doas tcpdump -s 32768 -w /tmp/dump -i lo0 udp and port 161 & > [1] 29068 > tcpdump: listening on lo0, link-type LOOP > $ doas rcctl start netsnmpd > netsnmpd(ok) > $ ./spass.pl > The sysContact for host 'localhost': 'Me <[email protected]>'. > $ doas rcctl stop netsnmpd > netsnmpd(ok) > $ doas rcctl start snmpd > snmpd(ok) > $ ./spass.pl > ERROR: Received usmStatsUnsupportedSecLevels.0 Report-PDU with value 1 during > discovery. > $ kill 29068 > /bin/ksh: kill: 29068: Operation not permitted > $ fg > doas tcpdump -s 32768 -w /tmp/dump -i lo0 udp a > C-c C-c > 14 packets received by filter > 0 packets dropped by kernel > $ doas tcpdump -Xnr /tmp/dump > tcpdump: WARNING: snaplen raised from 116 to 32768 > 10:18:04.483709 127.0.0.1.13982 > 127.0.0.1.161: [version(3)>1] > 0000: 4500 005c 0e31 0000 4011 6e5e 7f00 0001 E..\[email protected]^.... > 0010: 7f00 0001 369e 00a1 0048 06b1 303e 0201 ....6....H..0>.. > 0020: 0330 1102 0426 133d 2c02 0300 ffe3 0401 .0...&.=,....... > 0030: 0402 0103 0410 300e 0400 0201 0002 0100 ......0......... > 0040: 0400 0400 0400 3014 0400 0400 a00e 0204 ......0......... > 0050: 2408 b557 0201 0002 0100 3000 $..W......0. > > 10:18:04.484364 127.0.0.1.161 > 127.0.0.1.13982: [version(3)>1] > 0000: 4500 008f 9329 0000 4011 e932 7f00 0001 E....)[email protected].... > 0010: 7f00 0001 00a1 369e 007b 8496 3071 0201 ......6..{..0q.. > 0020: 0330 1102 0426 133d 2c02 0300 ffe3 0401 .0...&.=,....... > 0030: 0002 0103 0421 301f 0411 8000 1f88 8008 .....!0......... > 0040: 7e31 4e1c f5ab 5800 0000 0002 0105 0201 ~1N...X......... > 0050: 0504 0004 0004 0030 3604 1180 001f 8880 .......06....... > 0060: 087e 314e 1cf5 ab58 0000 0000 0400 a81f .~1N...X........ > 0070: 0204 2408 b557 0201 0002 0100 3011 300f ..$..W......0.0. > 0080: 060a 2b06 0106 030f 0101 0400 4101 01 ..+.........A.. > > 10:18:04.491350 127.0.0.1.13982 > 127.0.0.1.161: [version(3)>1] > 0000: 4500 008e ef82 0000 4011 8cda 7f00 0001 E.......@....... > 0010: 7f00 0001 369e 00a1 007a 0efd 3070 0201 ....6....z..0p.. > 0020: 0330 1102 046d 72f1 a802 0300 ffe3 0401 .0...mr......... > 0030: 0502 0103 0431 302f 0411 8000 1f88 8008 .....10/........ > 0040: 7e31 4e1c f5ab 5800 0000 0002 0100 0201 ~1N...X......... > 0050: 0004 0473 6e6d 7004 0c41 f9fe 5dbb b36c ...snmp..A..]..l > 0060: 3850 5e22 d604 0030 2504 1180 001f 8880 8P^"...0%....... > 0070: 087e 314e 1cf5 ab58 0000 0000 0400 a00e .~1N...X........ > 0080: 0204 2fb1 a1d0 0201 0002 0100 3000 ../.........0. > > 10:18:04.491717 127.0.0.1.161 > 127.0.0.1.13982: [version(3)>1] > 0000: 4500 00a0 e04b 0000 4011 9bff 7f00 0001 E....K..@....... > 0010: 7f00 0001 00a1 369e 008c dc17 3081 8102 ......6.....0... > 0020: 0103 3011 0204 6d72 f1a8 0203 00ff e304 ..0...mr........ > 0030: 0101 0201 0304 3130 2f04 1180 001f 8880 ......10/....... > 0040: 087e 314e 1cf5 ab58 0000 0000 0201 0502 .~1N...X........ > 0050: 0105 0404 736e 6d70 040c c799 5060 7d40 ....snmp....P`}@ > 0060: 14b7 9d51 26e1 0400 3036 0411 8000 1f88 ...Q&...06...... > 0070: 8008 7e31 4e1c f5ab 5800 0000 0004 00a8 ..~1N...X....... > 0080: 1f02 042f b1a1 d002 0100 0201 0030 1130 .../.........0.0 > 0090: 0f06 0a2b 0601 0603 0f01 0102 0041 0101 ...+.........A.. > > 10:18:04.492945 127.0.0.1.13982 > 127.0.0.1.161: [version(3)>1] > 0000: 4500 009c 2385 0000 4011 58ca 7f00 0001 E...#[email protected]..... > 0010: 7f00 0001 369e 00a1 0088 dc8c 307e 0201 ....6.......0~.. > 0020: 0330 1102 042f e1a0 9602 0300 ffe3 0401 .0.../.......... > 0030: 0502 0103 0431 302f 0411 8000 1f88 8008 .....10/........ > 0040: 7e31 4e1c f5ab 5800 0000 0002 0105 0201 ~1N...X......... > 0050: 0504 0473 6e6d 7004 0c50 8c7a d478 95c1 ...snmp..P.z.x.. > 0060: 130a 283c 0804 0030 3304 1180 001f 8880 ..(<...03....... > 0070: 087e 314e 1cf5 ab58 0000 0000 0400 a01c .~1N...X........ > 0080: 0204 67d5 fdd2 0201 0002 0100 300e 300c ..g.........0.0. > 0090: 0608 2b06 0102 0101 0400 0500 ..+......... > > 10:18:04.493217 127.0.0.1.161 > 127.0.0.1.13982: [version(3)>1] > 0000: 4500 00b2 27b9 0000 4011 5480 7f00 0001 E...'[email protected]..... > 0010: 7f00 0001 00a1 369e 009e 4550 3081 9302 ......6...EP0... > 0020: 0103 3011 0204 2fe1 a096 0203 00ff e304 ..0.../......... > 0030: 0101 0201 0304 3130 2f04 1180 001f 8880 ......10/....... > 0040: 087e 314e 1cf5 ab58 0000 0000 0201 0502 .~1N...X........ > 0050: 0105 0404 736e 6d70 040c 3f3d dda4 73e0 ....snmp..?=..s. > 0060: f425 1ded 9577 0400 3048 0411 8000 1f88 .%...w..0H...... > 0070: 8008 7e31 4e1c f5ab 5800 0000 0004 00a2 ..~1N...X....... > 0080: 3102 0467 d5fd d202 0100 0201 0030 2330 1..g.........0#0 > 0090: 2106 082b 0601 0201 0104 0004 154d 6520 !..+.........Me > 00a0: 3c73 6e6d 7040 6578 616d 706c 652e 636f <[email protected] > 00b0: 6d3e m> > > 10:18:23.878696 127.0.0.1.42305 > 127.0.0.1.161: [version(3)>1] > 0000: 4500 005c 51b3 0000 4011 2adc 7f00 0001 E..\Q...@.*..... > 0010: 7f00 0001 a541 00a1 0048 d151 303e 0201 .....A...H.Q0>.. > 0020: 0330 1102 0402 41d4 4502 0300 ffe3 0401 .0....A.E....... > 0030: 0402 0103 0410 300e 0400 0201 0002 0100 ......0......... > 0040: 0400 0400 0400 3014 0400 0400 a00e 0204 ......0......... > 0050: 2b74 2d34 0201 0002 0100 3000 +t-4......0. > > 10:18:23.878892 127.0.0.1.161 > 127.0.0.1.42305: [version(3)>1] > 0000: 4500 0087 81e5 0000 4011 fa7e 7f00 0001 E.......@..~.... > 0010: 7f00 0001 00a1 a541 0073 b0ba 3069 0201 .......A.s..0i.. > 0020: 0330 1102 0402 41d4 4502 0300 ffe3 0401 .0....A.E....... > 0030: 0002 0103 0420 301e 040d 8000 75cb 80d1 ..... 0.....u... > 0040: 297f d558 ac05 dd02 0100 0204 58ac 05df )..X........X... > 0050: 0400 0400 0400 302f 040d 8000 75cb 80d1 ......0/....u... > 0060: 297f d558 ac05 dd04 00a8 1c02 0100 0201 )..X............ > 0070: 0002 0100 3011 300f 060a 2b06 0106 030f ....0.0...+..... > 0080: 0101 0100 4101 01 ....A.. > > $ >
