Purpose of netsnmp_pdu.data in mib table

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Hi All,
From my observations, it appears that some  of MIB table implementations
utilize the dataFreeHook within the netsnmp_pdu structure. I understand
that this hook is intended to release the memory allocated to
netsnmp_pdu.data. I would appreciate further clarification on the role of
netsnmp_pdu.data and the nature of the data it contains in the context of
MIB table implementations.  Kindly guide.

Eg: dataFreeHook = requests->requestvb->dataFreeHook in

_mfd_ipAddressTable_get_values(netsnmp_mib_handler *handler,
                               netsnmp_handler_registration *reginfo,
                               netsnmp_agent_request_info *agtreq_info,
                               netsnmp_request_info *requests)


Thanks,
Pushpa Thimmaiah

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<div dir=3D"ltr"><div>Hi All,</div><div>From my observations, it appears th=
at some=C2=A0 of MIB table
 implementations utilize the dataFreeHook within the netsnmp_pdu=20
structure. I understand that this hook is intended to release the memory
 allocated to netsnmp_pdu.data. I would appreciate further clarification
 on the role of netsnmp_pdu.data and the nature of the data it contains=20
in the context of MIB table implementations.=C2=A0 Kindly guide.<br></div><=
div><br></div><div>Eg: dataFreeHook =3D requests-&gt;requestvb-&gt;dataFree=
Hook in <br><br>_mfd_ipAddressTable_get_values(netsnmp_mib_handler *handler=
,<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0netsnmp_handler_registration *regi=
nfo,<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0netsnmp_agent_request_info *ag=
treq_info,<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0netsnmp_request_info *r=
equests)</div><div><br></div><div><br></div><div>Thanks,</div><div>Pushpa T=
himmaiah<br></div></div>

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