I've been implementing a module for the net-snmp agent. I'm successful in integrating the module with the agent. All the objects in the MIB were scalar variables.
Recently, I added a new object which corresponds to a table. This table object is given below. 'company' corresponds to the OID corresponding to the root of the MIB implemented. The initial 25 scalar objects are integrated successfully to the agent.
------------------------------------------------------
blockedIPList OBJECT-TYPE
SYNTAX SEQUENCE OF IPTable
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Table of 10 most recently blocked IPs"
::= { company 26 }
ipTable OBJECT-TYPE
SYNTAX IPTable
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry containing a blocked IP"
INDEX { ipIndex }
::= { blockedIPList 1 }
IPTable ::= SEQUENCE {
ipIndex Integer32,
ipEntry NetworkAddress
}
ipIndex OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Index for IP Table"
::= { ipTable 1 }
ipEntry OBJECT-TYPE
SYNTAX NetworkAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Blocked IP Entry"
::= { ipTable 2 }
------------------------------------------------------
Now, I added a new module "company_table" in the same file company.c, and company.h.
1. Do I need to integrate the module explicitly somewhere? (This module is implemented in the same file as of the previous module).
2. The two modules are integrated as shown below:
oid company_variables_oid[] = { company};
struct variable4 company_variables[] = {
{LOGFULLPERCENT, ASN_INTEGER, RONLY, var_company, 1, {1 }},
...
...
{DISKFULLPERCENT , ASN_INTEGER, RONLY, var_company, 1, {25 }}
};
oid company_table_variables_oid[] = { company,26,1};
struct variable4 company_table_variables[] = {
{IPINDEX, ASN_INTEGER, RONLY, var_company_table, 1, {1}},
{IPENTRY, ASN_OCTET_STR, RONLY, var_company_table, 1, {2}}
};
Are the registration of the OIDs correct? I had this doubt because I've registered the 'company' OID, and without registering it's child 'company.26', I'm trying to register 'company.26.1'. Is this ok?
3. The snmpwalk returns this:
bash$ snmpwalk -v2c -c public 127.0.0.1 enterprises.company
SNMPv2-SMI::enterprises.company.1.0 = 0
...
...
...
SNMPv2-SMI::enterprises.company.25.0 = 57
The "company.26" table is not visible in the walk.
Can anybody give me some pointers to where I'm going wrong?
Thanks,
--Haris
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