Re: Issue regarding the SIGHUP

On 20/02/07, [email protected] <[email protected]> wrote:
> I am trying with manually editing the /var/net-snmp/snmpd.conf.
> And adding the following lines for creating snmp v3 users.
>
> createUser snmpv3user MD5 password DES password
> createUser anotheruser MD5 password DES
>
> After saving this file, I am sending a SIGHUP signal, using the command
>
> kill -1 <pid of snmpd>
>
> What I am expecting is the user information should have got scrambled there.
> But it is not happening.

No - the user information is scrambled (localised) when the persistent
information is *saved* rather than when the config is read.  The man
page is somewhat vague (and perhaps even misleading) about this.


> And when I restart the snmpd, then I see the userinfo got scrambled.

It's possible to force this behaviour using the MIB object
UCD-SNMP-MIB::versionSavePersistentData.
Setting this (scalar instance) to 1 will result in scrambling
the user entr.


The attached patch would implement the behaviour you
expect.  I'm currently torn between applying this, and
updating the documentation to clarify the current behaviour.

Dave

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Index: agent_read_config.c
===================================================================
RCS file: /cvsroot/net-snmp/net-snmp/agent/agent_read_config.c,v
retrieving revision 5.9
diff -u -r5.9 agent_read_config.c
--- agent_read_config.c	6 Oct 2004 02:02:37 -0000	5.9
+++ agent_read_config.c	22 Feb 2007 09:49:41 -0000
@@ -273,6 +273,8 @@
                         SNMPD_CALLBACK_PRE_UPDATE_CONFIG, NULL);
     free_config();
     read_configs();
+    snmp_store(netsnmp_ds_get_string(NETSNMP_DS_LIBRARY_ID,
+                                     NETSNMP_DS_LIB_APPTYPE));
 }