Greetings,
I am looking at:
http://www.net-snmp.org/wiki/index.php/TUT:Writing_a_Subagent
and am having some trouble making it work.
I've downloaded the code:
the NET-SNMP-TUTORIAL-MIB MIB, and the example mib module and it's header file.
I've built the subagent:
$ net-snmp-config --compile-subagent mysubagent nstAgentSubagentObject.c
generating the temporary code file: netsnmptmp.5644.c
void init_nstAgentSubagentObject(void);
checking for init_nstAgentSubagentObject in nstAgentSubagentObject.c
init_nstAgentSubagentObject(void)
checking for shutdown_nstAgentSubagentObject in nstAgentSubagentObject.c
running: gcc -DNETSNMP_ENABLE_IPV6 -fno-strict-aliasing -g -O2
-fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security
-DNETSNMP_USE_INLINE -Ulinux -Dlinux=linux -D_REENTRANT -D_GNU_SOURCE -DDEBIAN
-fstack-protector -fno-strict-aliasing -pipe -I/usr/local/include
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/lib/perl/5.18/CORE -I.
-I/usr/include -o mysubagent netsnmptmp.5644.c nstAgentSubagentObject.c
-Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,now -L/usr/lib/x86_64-linux-gnu
-lnetsnmpmibs -lnetsnmpagent -lnetsnmp -lnetsnmpmibs -lsensors -ldl
-lnetsnmpagent -lwrap -Wl,-E -lnetsnmp -lcrypto
nstAgentSubagentObject.c: In function ‘init_nstAgentSubagentObject’:
nstAgentSubagentObject.c:47:5: warning: format ‘%d’ expects argument of type
‘int’, but argument 3 has type ‘long int’ [-Wformat=]
DEBUGMSGTL(("nstAgentSubagentObject",
^
nstAgentSubagentObject.c:47:5: warning: format ‘%d’ expects argument of type
‘int’, but argument 3 has type ‘long int’ [-Wformat=]
removing the temporary code file: netsnmptmp.5644.c
subagent program mysubagent created
peter@Asset-507:~/src/netsnmpdemo$ net-snmp-config --compile-subagent
mysubagent nstAgentSubagentObject.c
generating the temporary code file: netsnmptmp.5675.c
void init_nstAgentSubagentObject(void);
checking for init_nstAgentSubagentObject in nstAgentSubagentObject.c
init_nstAgentSubagentObject(void)
checking for shutdown_nstAgentSubagentObject in nstAgentSubagentObject.c
running: gcc -DNETSNMP_ENABLE_IPV6 -fno-strict-aliasing -g -O2
-fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security
-DNETSNMP_USE_INLINE -Ulinux -Dlinux=linux -D_REENTRANT -D_GNU_SOURCE -DDEBIAN
-fstack-protector -fno-strict-aliasing -pipe -I/usr/local/include
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/lib/perl/5.18/CORE -I.
-I/usr/include -o mysubagent netsnmptmp.5675.c nstAgentSubagentObject.c
-Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,now -L/usr/lib/x86_64-linux-gnu
-lnetsnmpmibs -lnetsnmpagent -lnetsnmp -lnetsnmpmibs -lsensors -ldl
-lnetsnmpagent -lwrap -Wl,-E -lnetsnmp -lcrypto
nstAgentSubagentObject.c: In function ‘init_nstAgentSubagentObject’:
nstAgentSubagentObject.c:47:5: warning: format ‘%d’ expects argument of type
‘int’, but argument 3 has type ‘long int’ [-Wformat=]
DEBUGMSGTL(("nstAgentSubagentObject",
^
nstAgentSubagentObject.c:47:5: warning: format ‘%d’ expects argument of type
‘int’, but argument 3 has type ‘long int’ [-Wformat=]
removing the temporary code file: netsnmptmp.5675.c
subagent program mysubagent created
I've started the daemon
$ snmpd -f -Lo -C --rwcommunity=public --master=agentx
--agentXSocket=tcp:localhost:1705 udp:1161
Turning on AgentX master support.
[init_smux] bind failed: Permission denied
Cannot rename /var/lib/snmp/snmpd.conf to /var/lib/snmp/snmpd.0.conf
Cannot unlink /var/lib/snmp/snmpd.conf
read_config_store open failure on /var/lib/snmp/snmpd.conf
read_config_store open failure on /var/lib/snmp/snmpd.conf
read_config_store open failure on /var/lib/snmp/snmpd.conf
read_config_store open failure on /var/lib/snmp/snmpd.conf
read_config_store open failure on /var/lib/snmp/snmpd.conf
read_config_store open failure on /var/lib/snmp/snmpd.conf
read_config_store open failure on /var/lib/snmp/snmpd.conf
read_config_store open failure on /var/lib/snmp/snmpd.conf
read_config_store open failure on /var/lib/snmp/snmpd.conf
read_config_store open failure on /var/lib/snmp/snmpd.conf
read_config_store open failure on /var/lib/snmp/snmpd.conf
read_config_store open failure on /var/lib/snmp/snmpd.conf
read_config_store open failure on /var/lib/snmp/snmpd.conf
read_config_store open failure on /var/lib/snmp/snmpd.conf
NET-SNMP version 5.7.2
And started the subagent:
$ ./mysubagent -f -Lo -x tcp:localhost:1705
NET-SNMP version 5.7.2 AgentX subagent connected
Up to this point, everything appear copacetic
So, now I try to run the snmpget:
$ snmpget localhost NET-SNMP-TUTORIAL-MIB::nstAgentSubagentObject.0
snmpget: Timeout
In case it is important, I am using ubuntu 14.04 and the bundled net-snmp
software:
Start-Date: 2015-01-30 16:03:01
Commandline: aptdaemon role='role-commit-packages' sender=':1.227'
Install: snmp:amd64 (5.7.2~dfsg-8.1ubuntu3)
End-Date: 2015-01-30 16:03:02
Start-Date: 2015-01-30 16:03:30
Commandline: apt-get install libsnmp-dev
Install: libsnmp-dev:amd64 (5.7.2~dfsg-8.1ubuntu3), libwrap0-dev:amd64
(7.6.q-25, automatic), libssl-dev:amd64 (1.0.1f-1ubuntu2.8, automatic),
libssl-doc:amd64 (1.0.1f-1ubuntu2.8, automatic), libsensors4-dev:amd64
(3.3.4-2ubuntu1, automatic)
End-Date: 2015-01-30 16:03:33
Start-Date: 2015-01-30 16:09:30
Commandline: apt-get install libnet-snmp-perl
Install: libnet-snmp-perl:amd64 (6.0.1-2)
End-Date: 2015-01-30 16:09:32
Start-Date: 2015-01-30 16:09:59
Commandline: apt-get install libsnmp-mib-compiler-perl
Install: libsnmp-mib-compiler-perl:amd64 (0.06-2)
End-Date: 2015-01-30 16:10:00
Start-Date: 2015-01-30 16:10:36
Commandline: apt-get install libsnmp-multi-perl libsnmp-perl
Install: libsnmp-perl:amd64 (5.7.2~dfsg-8.1ubuntu3), libsnmp-multi-perl:amd64
(2.1-4)
End-Date: 2015-01-30 16:10:38
Start-Date: 2015-02-02 09:24:29
Commandline: aptdaemon role='role-commit-packages' sender=':1.97'
Install: snmp-mibs-downloader:amd64 (1.1), smistrip:amd64
(0.4.8+dfsg2-8ubuntu2, automatic)
End-Date: 2015-02-02 09:24:37
Start-Date: 2015-02-04 10:33:18
Commandline: apt-get install snmpd
Install: snmpd:amd64 (5.7.2~dfsg-8.1ubuntu3), mysql-common:amd64
(5.5.41-0ubuntu0.14.04.1, automatic), libmysqlclient18:amd64
(5.5.41-0ubuntu0.14.04.1, automatic)
End-Date: 2015-02-04 10:33:20
Any guesses as to the failure?
Peter.
?
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