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June 2009

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libsmi/smidump 0.4.8 problem: SYSAPPL-MIB::sysApplPastRunMaxRows SYNTAX Upper Bound
by Jens Engel 18 Mar '11

18 Mar '11

smidump 0.4.8 (up to rev13631 and maybe never) have a problem with the following SMI construct: -- FROM libsmi distributed SYSAPPL-MIB: sysApplPastRunMaxRows OBJECT-TYPE SYNTAX Unsigned32 (0..'ffffffff'h) ... NOTE: 0xFFFFFFFF = 2^32-1 = 4 294 967 295 when you try to convert the provided MIB via: smidump --format=smiv2 SYSAPPL-MIB ... you get the following output for libsmi 0.4.7 and 0.4.8. NOTE: Upper syntax bound is wrong in both cases. === modified file 'IETF/mibs/SYSAPPL-MIB.mib' --- IETF/mibs/SYSAPPL-MIB.mib 2009-03-28 19:03:48 +0000 +++ IETF/mibs/SYSAPPL-MIB.mib 2009-05-04 16:57:29 +0000 @@ -1038,7 +1038,7 @@ ::= { sysApplElmtPastRunEntry 11 } sysApplPastRunMaxRows OBJECT-TYPE - SYNTAX Unsigned32 (0..1134880) -- smidump 0.4.7 output + SYNTAX Unsigned32 (0..1134864) -- smidump 0.4.8 rev13631 (post-release) NOTE: Output of SYNTAX upper bound varies. WEIRD: The conversion to format=python leads to the correct result. Without looking at the source code, I assume that the hex-string to integer conversion has a problem. Ciao, Jens Engel Jens Engel mailto:jens_engel@t-online.de mailto:jens.engel

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Libmi on Debian - resolve numeric OIDs into human readable format
by André Nogueira 14 Jun '09

14 Jun '09

Hi. I am trying to use libsmi, on Debian, to resolve numeric OIDs (e.g.1.3.6.1.2.1.2.2.1.6.1) into human readable format (e.g. IF-MIB::ifPhysAddress.1). I installed libsmi2: neolink@debian:~$ dpkg --list | grep libsmi ii libsmi2-common 0.4.7+dfsg-0.1 A library to access SMI MIB information (MIB module files) ii libsmi2-dev 0.4.7+dfsg-0.1 A library to access SMI MIB information (development files) ii libsmi2ldbl 0.4.7+dfsg-0.1 A library to access SMI MIB information I tried to use this function: SmiNode *smiGetNodeByOID(unsigned int oidlen, SmiSubid oid[]); #include <stdio.h> #include <string.h> #include <smi.h> int main(int argc, char *argv[]) { SmiNode *smiNode; int oidlen, first = 1; smiInit(NULL); SmiSubid oidArray[11] = {1,3,6,1,2,1,2,2,1,6,1}; for((smiNode = smiGetNodeByOID(11,oidArray)) && (oidlen = smiNode->oidlen); smiNode && (first || smiNode->oidlen > oidlen); smiNode = smiGetNextNode(smiNode, SMI_NODEKIND_ANY),first = 0) { printf("%*s%-32s\n",(smiNode->oidlen - oidlen + 1) * 2, " ",smiNode->name); }; exit(0); } root@debian:/home/neolink# gcc -o libsmi_code_test libsmi_code_test.c -lsmi root@debian:/home/neolink# ./libsmi_code_test iso root@debian:/home/neolink# Anybody can help me? Thank.

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