SmiObject.conformance always returns 1 about snimpy HOT 12 CLOSED

Could you bypass the check and check the OID you get with mib.get(m, "sysDescr").oid?

If the OID is quite incorrect, I suspect that CFFI didn't understand your target during cross-compilation.

from snimpy.

mib.get(m, "sysDescr").oid

*** AttributeError: '_cffi_backend.CData' object has no attribute 'encode'

Reviewing my cross-compile environment.

from snimpy.

Sorry, I did give you the wrong command. Try mib.get("SNMPv2-MIB", "sysDescr").oid.

from snimpy.

Can I run that like this? Changed the conformace test to "< 1" so 1 passes:

>>> from snimpy import mib
>>> oid = mib.get("/usr/share/snmp/mibs/SNMPv2-MIB", "sysDescr").oid
>>> print oid
(0L, 1L, 1L)

from snimpy.

You can try snimpy 0.6.4. It still uses libsmi but it uses a classic Python module instead of CFFI. If it works, the problem is likely with CFFI. I would have expected the OID to be something with very high numbers or that you would get segfaults.

Could you try:

import snimpy.mib
from snimpy.smi import smi, ffi
a=smi.smiGetModule("SNMPv2-MIB")
print ffi.string(a.name)
c=smi.smiGetNode(a, "sysDescr")
print ffi.string(c.name)
print c.oidlen
print [x for x in c.oid[0:c.oidlen]]

from snimpy.

>>> import snimpy.mib
>>> from snimpy.smi import smi, ffi
>>> a=smi.smiGetModule("/usr/share/snmp/mibs/SNMPv2-MIB")
>>> print ffi.string(a.name)
SNMPv2-MIB
>>> c=smi.smiGetNode(a, "sysDescr")
>>> print ffi.string(c.name)
sysDescr
>>> print c.oidlen
3
>>> print [x for x in c.oid[0:c.oidlen]]
[0L, 1L, 1L]

I noticed that I have to put the fully qualified path to load, but since some mibs have IMPORTS, how does snimpy (or rather libsmi) resolve?

I tried running in the mibs directory
[root@t21 mibs]# pwd
/usr/share/snmp/mibs
[root@t21 mibs]# python

Python 2.7.3 (default, Feb  1 2015, 04:34:21) 
[GCC 4.7.3 20121106 (prerelease)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import snimpy.mib
>>> from snimpy.smi import smi, ffi
>>> a=smi.smiGetModule("SNMPv2-MIB")
>>> print ffi.string(a.name)
Segmentation fault

from snimpy.

Oh, yes, maybe libsmi is not configured correctly. It reads a configuration file (/etc/smi.conf for example). There is a default search path and you can add more in /etc/smi.conf. You could add:

path :/usr/share/snmp/mibs

For loading dependencies, libsmi will try to load them automatically.

from snimpy.

However, as far as I know, smilint should work exactly the same.

from snimpy.

If it helps, I have just pushed a commit that should display the error that libsmi detected. For example:

SMIException: /home/bernat/Documents/Deezer/MIB/allied/ATSWTCH2-MIB contains major SMI error (/home/bernat/Documents/Deezer/MIB/allied/ATSWTCH2-MIB:47: failed to locate MIB module `RFC-1212': check with smilint -s -l1)

from snimpy.

path :/usr/share/snmp/mibs

smi.conf is the fix. Thank you! I feel bad since it was not an issue with snimpy. libsmi does not include or install an smi.conf. Distro handlers seem to be manually doing it. I'll add it to buildroot.

>>> from snimpy.manager import Manager as M
>>> from snimpy.manager import load
>>> load("SNMPv2-MIB")
>>> m = M("localhost", "public", 2)
>>> print(m.sysDescr)
Linux t21 3.10.12 #1 SMP Thu Oct 23 11:15:42 EDT 2014 armv7l

from snimpy.

OK, that's odd that smilint worked without it. Looking at the source code, there is no hard coded path in smilint.

from snimpy.

Used smilint on the desktop. Never used smilint/libsmi on target platforms.

from snimpy.