5.7 "Cannot find module" (SNMPv2-SMI), etc.

Follow-up on this, towards the bottom of read_module_internal()
in snmplib/parse.c we have this:

if (np != NULL)
return MODULE_LOADED_OK;
else if (gMibError == MODULE_SYNTAX_ERROR)
return MODULE_SYNTAX_ERROR;

In my case np is NULL (i.e. parse() returned null), but gMibError
is still 0, so this falls through the end of the block and hits the
"return MODULE_NOT_FOUND" at the bottom of the function causing
the error.

Here's a snippet around the time of the error with -Dall (though
I don't think this contains any additional clues).

trace: parse(): parse.c, 4318:
parse-file: Parsing file: /usr/local/share/snmp/mibs/IP-MIB.txt...
trace: parse(): parse.c, 4455:
parse-mibs: Parsing MIB: 18 IP-MIB
trace: parse(): parse.c, 4318:
parse-file: Parsing file: /usr/local/share/snmp/mibs/SNMPv2-SMI.txt...
trace: parse(): parse.c, 4455:
parse-mibs: Parsing MIB: 48 SNMPv2-SMI
trace: do_linkup(): parse.c, 1746:
parse-mibs: Processing IMPORTS for module 48 SNMPv2-SMI
trace: do_linkup(): parse.c, 1759:
parse-mibs: Processing import: joint-iso-ccitt
trace: do_linkup(): parse.c, 1759:
parse-mibs: Processing import: ccitt
trace: do_linkup(): parse.c, 1759:
parse-mibs: Processing import: iso
trace: parse(): parse.c, 4572:
parse-file: End of file (/usr/local/share/snmp/mibs/SNMPv2-SMI.txt)
trace: netsnmp_get_mib_directory(): mib.c, 2482:
trace: netsnmp_get_mib_directory(): mib.c, 2515:
get_mib_directory: mib directories set '/home/sthen/.snmp/mibs:/usr/share/snmp/mibs:/usr/local/share/snmp/mibs'
MIB search path: /home/sthen/.snmp/mibs:/usr/share/snmp/mibs:/usr/local/share/snmp/mibs
trace: print_error(): parse.c, 800:
parse-mibs:
Cannot find module (SNMPv2-SMI): At line 7 in /usr/local/share/snmp/mibs/IP-MIB.txt
trace: parse(): parse.c, 4318:
parse-file: Parsing file: /usr/local/share/snmp/mibs/SNMPv2-TC.txt...
trace: parse(): parse.c, 4455:
parse-mibs: Parsing MIB: 49 SNMPv2-TC
trace: do_linkup(): parse.c, 1746:
parse-mibs: Processing IMPORTS for module 49 SNMPv2-TC

Bart Van Assche

2011-07-08 18:37:16 UTC

Have you checked that the configure script made the correct choice for the
separator character (ENV_SEPARATOR in config.log) ?

Bart.

Stuart Henderson

2011-07-08 20:08:18 UTC

Post by Stuart Henderson
I'm updating the OpenBSD port of Net-SNMP to 5.7 and seeing some errors
relating to problems loading mibs that weren't happening in 5.6.1.1.
Can anyone give me suggestions as to where to look next please? Thanks.
Have you checked that the configure script made the correct choice for
the separator character (ENV_SEPARATOR in config.log) ?

Looks right, ENV_SEPARATOR=':'

Bill Fenner

2011-07-13 15:50:55 UTC

I'm updating the OpenBSD port of Net-SNMP to 5.7 and seeing some
errors
relating to problems loading mibs that weren't happening in
5.6.1.1.
Can anyone give me suggestions as to where to look next please?
Thanks.
Have you checked that the configure script made the correct choice for
the separator character (ENV_SEPARATOR in config.log) ?

Looks right, ENV_SEPARATOR=':'

I've got the same issue - I updated 5.6.1 to 5.7 by changing the
tarball and deleting the local patches that were included in 5.7, and
the snmpcmds and snmpd all gripe about not being able to find lots of
MIBs. My debugging looks largely the same --

~/10s/src/Snmp @bs1% snmpstatus -v 2c -c public localhost
MIB search path:
/home/fenner/.snmp/mibs:/usr/share/snmp/eos-mibs:/usr/share/snmp/mibs
Cannot find module (SNMPv2-SMI): At line 5 in
/usr/share/snmp/mibs/IANA-ADDRESS-FAMILY-NUMBERS-MIB.txt
Cannot find module (IANA-ADDRESS-FAMILY-NUMBERS-MIB): At line 1 in (none)
... etc

trace: netsnmp_mibindex_new(): mib.c, 2877:
mibindex: new: /usr/share/snmp/mibs (/var/net-snmp/mib_indexes/2)
trace: add_mibfile(): parse.c, 4824:
parse-mibs: Checking file: /usr/share/snmp/mibs/SNMPv2-SMI.txt...
trace: new_module(): parse.c, 4246:
parse-mibs: Module 13 SNMPv2-SMI is in /usr/share/snmp/mibs/SNMPv2-SMI.txt
...

trace: parse(): parse.c, 4317:
parse-file: Parsing file: /usr/share/snmp/mibs/SNMPv2-SMI.txt...
trace: parse(): parse.c, 4454:
parse-mibs: Parsing MIB: 13 SNMPv2-SMI
trace: do_linkup(): parse.c, 1746:
parse-mibs: Processing IMPORTS for module 13 SNMPv2-SMI
trace: do_linkup(): parse.c, 1759:
parse-mibs: Processing import: joint-iso-ccitt
trace: do_linkup(): parse.c, 1759:
parse-mibs: Processing import: ccitt
trace: do_linkup(): parse.c, 1759:
parse-mibs: Processing import: iso
trace: parse(): parse.c, 4571:
parse-file: End of file (/usr/share/snmp/mibs/SNMPv2-SMI.txt)
trace: netsnmp_get_mib_directory(): mib.c, 2482:
trace: netsnmp_get_mib_directory(): mib.c, 2515:
get_mib_directory: mib directories set
'/home/fenner/.snmp/mibs:/usr/share/snmp/eos-mibs:/usr/share/snmp/mibs'
MIB search path:
/home/fenner/.snmp/mibs:/usr/share/snmp/eos-mibs:/usr/share/snmp/mibs
trace: print_error(): parse.c, 800:
parse-mibs:
Cannot find module (SNMPv2-SMI): At line 5 in
/usr/share/snmp/mibs/IANA-ADDRESS-FAMILY-NUMBERS-MIB.txt

It's clearly finding the files, and then griping that it can't find the module.

Bill

Garrett Cooper

2011-07-13 16:22:25 UTC

I'm updating the OpenBSD port of Net-SNMP to 5.7 and seeing some
errors
relating to problems loading mibs that weren't happening in
5.6.1.1.
Can anyone give me suggestions as to where to look next please?
Thanks.
Have you checked that the configure script made the correct choice for
the separator character (ENV_SEPARATOR in config.log) ?

Looks right, ENV_SEPARATOR=':'

I've got the same issue - I updated 5.6.1 to 5.7 by changing the
tarball and deleting the local patches that were included in 5.7, and
the snmpcmds and snmpd all gripe about not being able to find lots of
MIBs. My debugging looks largely the same --
/home/fenner/.snmp/mibs:/usr/share/snmp/eos-mibs:/usr/share/snmp/mibs
Cannot find module (SNMPv2-SMI): At line 5 in
/usr/share/snmp/mibs/IANA-ADDRESS-FAMILY-NUMBERS-MIB.txt
Cannot find module (IANA-ADDRESS-FAMILY-NUMBERS-MIB): At line 1 in (none)
... etc
mibindex: new: /usr/share/snmp/mibs (/var/net-snmp/mib_indexes/2)
parse-mibs: Checking file: /usr/share/snmp/mibs/SNMPv2-SMI.txt...
parse-mibs: Module 13 SNMPv2-SMI is in /usr/share/snmp/mibs/SNMPv2-SMI.txt
...
parse-file: Parsing file: /usr/share/snmp/mibs/SNMPv2-SMI.txt...
parse-mibs: Parsing MIB: 13 SNMPv2-SMI
parse-mibs: Processing IMPORTS for module 13 SNMPv2-SMI
parse-mibs: Processing import: joint-iso-ccitt
parse-mibs: Processing import: ccitt
parse-mibs: Processing import: iso
parse-file: End of file (/usr/share/snmp/mibs/SNMPv2-SMI.txt)
get_mib_directory: mib directories set
'/home/fenner/.snmp/mibs:/usr/share/snmp/eos-mibs:/usr/share/snmp/mibs'
/home/fenner/.snmp/mibs:/usr/share/snmp/eos-mibs:/usr/share/snmp/mibs
Cannot find module (SNMPv2-SMI): At line 5 in
/usr/share/snmp/mibs/IANA-ADDRESS-FAMILY-NUMBERS-MIB.txt
It's clearly finding the files, and then griping that it can't find the module.

As I said in another email post...
http://sourceforge.net/mailarchive/forum.php?thread_name=CAGH67wTef4%2Bb4-eZ4sO%3Da6ZATKWMdZhX2hwX%3DbcHmDNEj50Mkw%40mail.gmail.com&forum_name=net-snmp-users
. The fix required to mute this unnecessary noise is trivial.
Thanks,
-Garrett

Bill Fenner

2011-07-14 03:31:20 UTC

Post by Garrett Cooper

I'm updating the OpenBSD port of Net-SNMP to 5.7 and seeing some
errors
relating to problems loading mibs that weren't happening in
5.6.1.1.
Can anyone give me suggestions as to where to look next please?
Thanks.
Have you checked that the configure script made the correct choice for
the separator character (ENV_SEPARATOR in config.log) ?

Looks right, ENV_SEPARATOR=':'

I've got the same issue - I updated 5.6.1 to 5.7 by changing the
tarball and deleting the local patches that were included in 5.7, and
the snmpcmds and snmpd all gripe about not being able to find lots of
MIBs. My debugging looks largely the same --
/home/fenner/.snmp/mibs:/usr/share/snmp/eos-mibs:/usr/share/snmp/mibs
Cannot find module (SNMPv2-SMI): At line 5 in
/usr/share/snmp/mibs/IANA-ADDRESS-FAMILY-NUMBERS-MIB.txt
Cannot find module (IANA-ADDRESS-FAMILY-NUMBERS-MIB): At line 1 in (none)
... etc
mibindex: new: /usr/share/snmp/mibs (/var/net-snmp/mib_indexes/2)
parse-mibs: Checking file: /usr/share/snmp/mibs/SNMPv2-SMI.txt...
parse-mibs: Module 13 SNMPv2-SMI is in /usr/share/snmp/mibs/SNMPv2-SMI.txt
...
parse-file: Parsing file: /usr/share/snmp/mibs/SNMPv2-SMI.txt...
parse-mibs: Parsing MIB: 13 SNMPv2-SMI
parse-mibs: Processing IMPORTS for module 13 SNMPv2-SMI
parse-mibs: Processing import: joint-iso-ccitt
parse-mibs: Processing import: ccitt
parse-mibs: Processing import: iso
parse-file: End of file (/usr/share/snmp/mibs/SNMPv2-SMI.txt)
get_mib_directory: mib directories set
'/home/fenner/.snmp/mibs:/usr/share/snmp/eos-mibs:/usr/share/snmp/mibs'
/home/fenner/.snmp/mibs:/usr/share/snmp/eos-mibs:/usr/share/snmp/mibs
Cannot find module (SNMPv2-SMI): At line 5 in
/usr/share/snmp/mibs/IANA-ADDRESS-FAMILY-NUMBERS-MIB.txt
It's clearly finding the files, and then griping that it can't find the module.

Looks like rstory committed something shorter:
http://net-snmp.git.sourceforge.net/git/gitweb.cgi?p=net-snmp/net-snmp;a=blobdiff;f=snmplib/parse.c;h=905763c566e82743b76fdd76d62c860f2fc469a3;hp=c2e4d3f9ffe49f77d63e472c693741fc670fddcc;hb=2edccc9be064dc4d669f31d4dc0c571f648ad34d;hpb=994baa9f2032815a46b0f812149e6ab82aa8d381

Bill

Garrett Cooper

2011-07-14 03:43:32 UTC

Post by Garrett Cooper

I'm updating the OpenBSD port of Net-SNMP to 5.7 and seeing some
errors
relating to problems loading mibs that weren't happening in
5.6.1.1.
Can anyone give me suggestions as to where to look next please?
Thanks.
Have you checked that the configure script made the correct choice for
the separator character (ENV_SEPARATOR in config.log) ?

Looks right, ENV_SEPARATOR=':'

I've got the same issue - I updated 5.6.1 to 5.7 by changing the
tarball and deleting the local patches that were included in 5.7, and
the snmpcmds and snmpd all gripe about not being able to find lots of
MIBs. My debugging looks largely the same --
/home/fenner/.snmp/mibs:/usr/share/snmp/eos-mibs:/usr/share/snmp/mibs
Cannot find module (SNMPv2-SMI): At line 5 in
/usr/share/snmp/mibs/IANA-ADDRESS-FAMILY-NUMBERS-MIB.txt
Cannot find module (IANA-ADDRESS-FAMILY-NUMBERS-MIB): At line 1 in (none)
... etc
mibindex: new: /usr/share/snmp/mibs (/var/net-snmp/mib_indexes/2)
parse-mibs: Checking file: /usr/share/snmp/mibs/SNMPv2-SMI.txt...
parse-mibs: Module 13 SNMPv2-SMI is in /usr/share/snmp/mibs/SNMPv2-SMI.txt
...
parse-file: Parsing file: /usr/share/snmp/mibs/SNMPv2-SMI.txt...
parse-mibs: Parsing MIB: 13 SNMPv2-SMI
parse-mibs: Processing IMPORTS for module 13 SNMPv2-SMI
parse-mibs: Processing import: joint-iso-ccitt
parse-mibs: Processing import: ccitt
parse-mibs: Processing import: iso
parse-file: End of file (/usr/share/snmp/mibs/SNMPv2-SMI.txt)
get_mib_directory: mib directories set
'/home/fenner/.snmp/mibs:/usr/share/snmp/eos-mibs:/usr/share/snmp/mibs'
/home/fenner/.snmp/mibs:/usr/share/snmp/eos-mibs:/usr/share/snmp/mibs
Cannot find module (SNMPv2-SMI): At line 5 in
/usr/share/snmp/mibs/IANA-ADDRESS-FAMILY-NUMBERS-MIB.txt
It's clearly finding the files, and then griping that it can't find the module.

http://net-snmp.git.sourceforge.net/git/gitweb.cgi?p=net-snmp/net-snmp;a=blobdiff;f=snmplib/parse.c;h=905763c566e82743b76fdd76d62c860f2fc469a3;hp=c2e4d3f9ffe49f77d63e472c693741fc670fddcc;hb=2edccc9be064dc4d669f31d4dc0c571f648ad34d;hpb=994baa9f2032815a46b0f812149e6ab82aa8d381

Except that that violates the requirements specified in the
comment above parse:

/*
* Parses a mib file and returns a linked list of nodes found in the file.
* Returns NULL on error.
*/

and gMibError is only set when parsing notifications, not all of
the rest of the edge cases where things can fail in parse(..). That's
why my patch was so much longer than the commit referenced above.
And as I noted in the bug there should have really been objects
parsed in SNMPv2-SMI because there are multiple OBJECT declarations;
why there weren't any parsed OBJECTs reported is in and of itself,
dubious.
Thanks,
-Garrett

Garrett Cooper

2011-07-10 22:05:49 UTC