Linux/AM3358: SNMP agent

MADHU GANDEPALLI

Expert 1300 points

Part Number: AM3358

Tool/software: Linux

Hello All

We have designed a custom board using AM3358 and have taken General Purpose EVM as reference.

The linux sdk we are using is 05.03.00.07.

In this SDK net-snmp is available and the version is 5.7.3.

I wanted to create a agentx for my custom MIB and respond for snmp requests , but I am unable to compile the c code for snmp-agentx as I couldn't find certain libraries.

Every example in the internet shows to include

#include <net-snmp/net-snmp-config.h>

#include <net-snmp/net-snmp-includes.h>

#include <net-snmp/agent/net-snmp-agent-includes.h>

I didn't find those libraries . I wanted to write the code in Qt. How to add the existing installed libraries in Qt. I tried by adding

LIBS+=-L -lnetsnmp

LIBS+=-L -lnetsnmpagent

in Qt but its throwing error.

Kinjdly help me in resolving this issue by replying at the earliest.

Regards

Mad_hu

over 6 years ago

0 Krunal Bhargav34 over 6 years ago

TI__Mastermind 44575 points

Hello,

As mentioned in the following document, TI integrates Qt in Processor SDK Linux but does not own, maintain and support all the Qt features. Please feel free to reach out to the Qt community:

QT Framework

While searching online, I found a reference about external library on the Qt page: https://doc.qt.io/qtcreator/creator-project-qmake-libraries.html

Regards,
Krunal

0 MADHU GANDEPALLI over 6 years ago in reply to Krunal Bhargav34

Expert 1300 points

Hello Krunal,

I would like to mention that I am not asking QT support for TI linux. My question is where do I found the libraries of netsnmp in the ti sdk. I have found libnetsnmp.so.30 linsnmpagent.s0.30 etc in the /usr/lib but cannot add them in my projects.

I mean I am not able to compile either using qt qmake or normal gcc make.I wanted to know where I am lagging in adding those libraries to compile environment or are there any other libraries which I am missing.

For your kind information I tried adding the libraries in the way described in the link shared by you .But it accepts only .so libraries but we dont have .so libraries we have .so.30.

I hope I have made my query clear.

Kindly reply me at the earliest.

Regards

Mad_hu

0 Krunal Bhargav34 over 6 years ago in reply to MADHU GANDEPALLI

TI__Mastermind 44575 points

Hello,

I am wondering if you could please share the errors you are observing while building the project.

Regards,
Krunal

0 MADHU GANDEPALLI over 6 years ago in reply to Krunal Bhargav34

Expert 1300 points

Hello Krunal,

The errors are cannot find the "net-snmp/*.h" libraries.

Regards

Mad_hu

0 Krunal Bhargav34 over 6 years ago in reply to MADHU GANDEPALLI

TI__Mastermind 44575 points

Hello,

It seems like Qt is not able to find the necessary header files (net-snmp/.h). Please run "locate net-snmp-config.h" on your system and after finding a valid path, please update your include path.

Regards,
Krunal

0 MADHU GANDEPALLI over 6 years ago in reply to Krunal Bhargav34

Expert 1300 points

Hello krunal ,

I could not find net-snmp-config.h in system.

I dont think its the problem with the Qt.The libraries are missing in the system.

Even I tried compiling the basic program from the below link:

http://net-snmp.sourceforge.net/wiki/index.php/TUT:Simple_Application

In this they try to include all the required dependencies in the makefile. Still I get an error that libraries not found or include header files not found.

Regards

Mad_hu

0 Krunal Bhargav34 over 6 years ago in reply to MADHU GANDEPALLI

TI__Mastermind 44575 points

Hello,

I am wondering if you have installed the net-snmp package as mentioned in the following link. Please keep in mind that we do not test/support the net-snmp package.

Regards,
Krunal

0 MADHU GANDEPALLI over 6 years ago in reply to Krunal Bhargav34

Expert 1300 points

Hello Krunal,

I didn't add the net-snmp . It came default with the SDK itself.

Regards

Mad_hu

0 Krunal Bhargav34 over 6 years ago in reply to MADHU GANDEPALLI

TI__Mastermind 44575 points

Hello,

Be default, TI SDK does not include the net-snmp package. In order to build the package (header files + shared library), please refer to our Yocto build guide.After setting up the host machine and downloading the git repos, pleas run the command "MACHINE=am57xx-evm bitbake net-snmp" to install the package.

Upon successful completion, please navigate to the folder <build/arago-tmp-external-arm-toolchain/work/armv7at2hf-neon-linux-gnueabi/net-snmp/5.8-r0.tisdk5/net-snmp-5.8/include/net-snmp> and it will contain all the header files. Next, modify the appropriate include path in your Makefile.

Regards,
Krunal

0 MADHU GANDEPALLI over 6 years ago in reply to Krunal Bhargav34

Expert 1300 points

Hello Krunal,

I am sorry to say that TI has included net-snmp packages in the latest SDK.

Except creating snmp agent everything else is working in the net-snmp inlcuded by TI in its SDK.

As of now , I have been using SNMP with bash script replying to my custom MIB.

Regrads

Mad_hu

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Linux/AM3358: SNMP agent