Date: Mon, 01 Jan 2024 09:17:32 -0500 From: "Dan Langille" <dan@langille.org> To: freebsd-ports <freebsd-ports@freebsd.org> Subject: Re: net-mgmt/net-snmp needs JAIL : off to get Memory usage Message-ID: <d8456172-8b62-4867-8fb5-23e07eccd7c3@app.fastmail.com> In-Reply-To: <fccc3c92-f76a-4ba8-ab5a-e069555c08ed@app.fastmail.com> References: <95c256b2-ec07-4867-bfa2-32f39ba88504@app.fastmail.com> <fccc3c92-f76a-4ba8-ab5a-e069555c08ed@app.fastmail.com>
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On Thu, Dec 28, 2023, at 1:24 PM, Dan Langille wrote:
> On Thu, Dec 28, 2023, at 11:28 AM, Dan Langille wrote:
>> Hello,
>>
>> I've just solved a long-puzzling issue with net-mgmt/net-snmp which was
>> not reporting Memory Usage on my hosts.
>>
>> Tests show it is related to the JAIL build-time configuration option.
>>
>> JAIL=off: Options for running snmpd within a jail(8)
>>
>> If off, the default, Memory Usage is available via snmpd.
>>
>> If on, it is not.
>>
>> One might ask: why have it on if not running in a jail?
>>
>> Simplicity: I build my own packages. I could have one repo specifically
>> for hosts (i.e. non-jails), but until now, it's never been an issue.
>>
>> However, I want to point that that JAIL=off does not seem to affect
>> usage within a jail.
>>
>> It becomes clear what JAIL does when looking at the Makefile:
>>
>> if ${PORT_OPTIONS:MJAIL}
>> NET_SNMP_WITHOUT_MIB_MODULE_LIST+= host
>> NET_SNMP_WITHOUT_MIB_MODULE_LIST+= ucd-snmp/memory
>> CONFIGURE_ARGS+= --without-kmem-usage
>> endif
>>
>> Not it's clear. Don't report host-like objects when within a jail.
>>
>> It is time for some flavors on this port? I know I'd like one for my
>> use: one without the above and with.
>>
>> I'll see if I can mangle something up which works.
>
> This works for me.
>
> --
> Dan Langille
> dan@langille.org
> Attachments:
> * patch-net-snmp-jail-flavor
I forgot the mailing list strips attachments. Here is that patch, pasted in:
[9:16 air01 dan ~/Downloads] % cat patch-net-snmp-jail-flavor
diff --git a/net-mgmt/net-snmp/Makefile b/net-mgmt/net-snmp/Makefile
index e5f60faefcbd..686c393991ea 100644
--- a/net-mgmt/net-snmp/Makefile
+++ b/net-mgmt/net-snmp/Makefile
@@ -18,6 +18,17 @@ LICENSE_FILE= ${WRKSRC}/COPYING
NOT_FOR_ARCHS= mips mips64
NOT_FOR_ARCHS_REASON= SSP is currently broken on MIPS
+FLAVORS= default jail
+FLAVORS?= ${FLAVORS:[1]}
+
+.if ${FLAVOR:U} == jail
+NET_SNMP_WITHOUT_MIB_MODULE_LIST+= host
+NET_SNMP_WITHOUT_MIB_MODULE_LIST+= ucd-snmp/memory
+CONFIGURE_ARGS+= --without-kmem-usage
+.endif
+
+jail_PKGNAMESUFFIX= -jail
+
OPTIONS_DEFINE= IPV6 MFD_REWRITES PERL PERL_EMBEDDED PYTHON DUMMY TKMIB \
MYSQL AX_SOCKONLY UNPRIVILEGED SMUX DOCS JAIL AX_DISABLE_TRAP \
TLS NEWSYSLOG NOLIBPKG SCTP
[9:17 air01 dan ~/Downloads] %
--
Dan Langille
dan@langille.org
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