Libsmi May 2012

libsmi@ibr.cs.tu-bs.de

4 participants
4 discussions

smidump --format=smiv2 output contains some errors in compliance SYNTAX/WRITE-SYNTAX clauses.
by Jens Engel 06 Jun '13

06 Jun '13

Hello, I just stumbled over the following problem in libsmi 0.4.8 and development trunk-tip rev34557 (as of today). The problem resides in the SYNTAX/WRITE-SYNTAX clauses in COMPLIANCE statements. Instead of a "type" the invalid term "(null)" is present. AFFECTED-MIBS (at least): - BRIDGE-MIB - SNMP-VIEW-BASED-ACM-MIB - ... => grep "(null)" *-MIB EXAMPLE: smidump --format=smiv2 BRIDGE-MIB ... OBJECT dot1dStpPriority SYNTAX (null) (0 | 4096 | 8192 | 12288 | 16384 | 20480 | 24576 | 28672 | 32768 | 36864 | 40960 | 45056 | 49152 | 53248 | 57344 | 61440) ... OBJECT dot1dStpPortPriority SYNTAX (null) (0 | 16 | 32 | 48 | 64 | 80 | 96 | 112 | 128 | 144 | 160 | 176 | 192 | 208 | 224 | 240) BUT: Original BRIDGE-MIB that is distributed w/ libsmi contains: OBJECT dot1dStpPriority SYNTAX Integer32 (0 | 4096 | 8192 | 12288 | 16384 | 20480 | 24576 | 28672 | 32768 | 36864 | 40960 | 45056 | 49152 | 53248 | 57344 | 61440) ... OBJECT dot1dStpPortPriority SYNTAX Integer32 (0 | 16 | 32 | 48 | 64 | 80 | 96 | 112 | 128 | 144 | 160 | 176 | 192 | 208 | 224 | 240) smidump --format=smiv2 SNMP-VIEW-BASED-ACM-MIB ... OBJECT vacmViewTreeFamilyMask WRITE-SYNTAX (null) (SIZE(0)) ... SHOULD-BE (as in original MIB distributed with libsmi): ... OBJECT vacmViewTreeFamilyMask WRITE-SYNTAX OCTET STRING (SIZE(0)) I assume that smidump does not have the info (only a NULL pointer) and just dumps it as textual info. NOTE: "smidiff <ORIGINAL-MIB> <SMIDUMPED-MIB>" does not seem to show a difference (except warnings, ...). Ciao, Jens

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Problem with findNodeByParentAndSubid()?
by Scott, Damien 24 May '12

24 May '12

I have been investigating a possible problem with the function findNodeByParentAndSubid() in LibSMI's data.c file (v0.4.8). This function makes a comparison with smiHandle->parserPtr->pendingPtr. However, as far as I can tell, the parserPtr member of smiHandle is only ever set to point to a local variable (see the smiInitData() and loadModule() functions). This is fine when the local variable is still in scope (i.e. when findNodeByParentAndSubid() is called from within either the smiInitData() or loadModule() functions). The problem is that findNodeByParentAndSubid() is also called from getNode(), which is itself called from smiGetNode(). I was hoping to be able to call smiGetNode() from any point in the code, after the smiInitData() and loadModule() had already completed. If parserPtr goes out of scope and is re-used then the result of the comparison in findNodeByParentAndSubid() is affected. If pendingNodePtr ever gets set to the same value as parentNodePtr then the 'for' loop is skipped and NULL is returned. My workaround for now has been to modify findNodeByParentAndSubid() so that the comparison with parserPtr->pendingNodePtr is only carried out during initialisation (when safely being called from the smiInitData() or loadModule() functions). I am not completely clear as to the purpose of the pendingNodePtr or the comparison made in findNodeByParentAndSubid(). If anyone with a better understanding of LibSMI could comment or investigate, I would be grateful for any assistance. Thanks Damien Scott

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Build errors under Cygwin
by R. Diez 07 May '12

07 May '12

Hi all: The release version 0.4.8 of libsmi does not build under Cygwin, see the build log at the bottom. Something is probably not right with asnprintf and the like. I would guess that this is not specific to Cygwin, it's probably an issue when building against newlib. asnprintf is being detected in the system C library, but it's redeclared in lib/snprintf.h anyway. I tried the Subversion head too, but I'm getting the same build problems. By the way, I noticed that autogen.sh seems to trigger "configure", which I don't think it's a good idea, as I want to specify my own "configure" argument before polluting the source directory. File autogen.sh is rather large, nowadays the following will probably do: autoreconf --warnings=all I would also fix the many autoconf warnings that the above command produces. Regards, R. Diez ---------8<---------8<---------8<---------8<--------- $ ./configure --prefix=/cygdrive/c/Ruben/SoftLib/libsmi/libsmi-0.4.8-bin checking for a BSD-compatible install... /usr/bin/install -c checking whether build environment is sane... yes checking for a thread-safe mkdir -p... /usr/bin/mkdir -p checking for gawk... gawk checking whether make sets $(MAKE)... yes checking for gcc... gcc checking for C compiler default output file name... a.exe checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... .exe checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... none needed checking for style of include used by make... GNU checking dependency style of gcc... gcc3 checking for additional required compiler flags... checking for strtoll... yes checking for strtoull... yes checking for strtoq... no checking for strtouq... no checking for timegm... yes checking for vsnprintf... yes checking for snprintf... yes checking for asprintf... yes checking for asnprintf... yes checking for vasprintf... yes checking for vasnprintf... yes checking how to run the C preprocessor... gcc -E checking for grep that handles long lines and -e... /usr/bin/grep checking for egrep... /usr/bin/grep -E checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking pwd.h usability... yes checking pwd.h presence... yes checking for pwd.h... yes checking for unistd.h... (cached) yes checking regex.h usability... yes checking regex.h presence... yes checking for regex.h... yes checking for stdint.h... (cached) yes checking limits.h usability... yes checking limits.h presence... yes checking for limits.h... yes checking for regexec in -lc... yes checking for path separator character... : checking for dir separator character... / checking for 64 bit types... long long/%lld, etc. checking for flex... /cygdrive/c/WinAVR-20100110/utils/bin/flex checking for bison... /cygdrive/c/WinAVR-20100110/utils/bin/bison checking for bash... /usr/bin/sh checking for sh... /usr/bin/sh checking for awk... /usr/bin/awk checking for wget... /cygdrive/c/WinAVR-20100110/utils/bin/wget checking for gdiff... no checking for diff... /usr/bin/diff checking for a BSD-compatible install... /usr/bin/install -c checking whether make sets $(MAKE)... (cached) yes checking build system type... i686-pc-cygwin checking host system type... i686-pc-cygwin checking for a sed that does not truncate output... /usr/bin/sed checking for ld used by gcc... /usr/bin/ld checking if the linker (/usr/bin/ld) is GNU ld... yes checking for /usr/bin/ld option to reload object files... -r checking for BSD-compatible nm... /usr/bin/nm -B checking whether ln -s works... yes checking how to recognise dependent libraries... file_magic ^x86 archive import|^x86 DLL checking dlfcn.h usability... yes checking dlfcn.h presence... yes checking for dlfcn.h... yes checking for g++... g++ checking whether we are using the GNU C++ compiler... yes checking whether g++ accepts -g... yes checking dependency style of g++... gcc3 checking how to run the C++ preprocessor... g++ -E checking for g77... g77 checking whether we are using the GNU Fortran 77 compiler... yes checking whether g77 accepts -g... yes checking the maximum length of command line arguments... 8192 checking command to parse /usr/bin/nm -B output from gcc object... ok checking for objdir... .libs checking for ar... ar checking for ranlib... ranlib checking for strip... strip checking if gcc supports -fno-rtti -fno-exceptions... no checking for gcc option to produce PIC... checking if gcc static flag -static works... yes checking if gcc supports -c -o file.o... yes checking whether the gcc linker (/usr/bin/ld) supports shared libraries... yes checking whether -lc should be explicitly linked in... yes checking dynamic linker characteristics... Win32 ld.exe checking how to hardcode library paths into programs... immediate checking whether stripping libraries is possible... yes checking if libtool supports shared libraries... yes checking whether to build shared libraries... yes checking whether to build static libraries... yes configure: creating libtool appending configuration tag "CXX" to libtool checking for ld used by g++... /usr/bin/ld checking if the linker (/usr/bin/ld) is GNU ld... yes checking whether the g++ linker (/usr/bin/ld) supports shared libraries... yes checking for g++ option to produce PIC... checking if g++ static flag -static works... yes checking if g++ supports -c -o file.o... yes checking whether the g++ linker (/usr/bin/ld) supports shared libraries... yes checking dynamic linker characteristics... Win32 ld.exe checking how to hardcode library paths into programs... immediate appending configuration tag "F77" to libtool checking if libtool supports shared libraries... yes checking whether to build shared libraries... yes checking whether to build static libraries... yes checking for g77 option to produce PIC... checking if g77 static flag -static works... yes checking if g77 supports -c -o file.o... yes checking whether the g77 linker (/usr/bin/ld) supports shared libraries... yes checking dynamic linker characteristics... Win32 ld.exe checking how to hardcode library paths into programs... immediate configure: creating ./config.status config.status: creating Makefile config.status: creating lib/Makefile config.status: creating tools/Makefile config.status: creating mibs/Makefile config.status: creating mibs/iana/Makefile config.status: creating mibs/ietf/Makefile config.status: creating mibs/irtf/Makefile config.status: creating mibs/tubs/Makefile config.status: creating mibs/site/Makefile config.status: creating pibs/Makefile config.status: creating pibs/ietf/Makefile config.status: creating pibs/tubs/Makefile config.status: creating pibs/site/Makefile config.status: creating test/Makefile config.status: creating test/mibs/Makefile config.status: creating test/smidiff/Makefile config.status: creating test/dumps/Makefile config.status: creating test/dumps/corba/Makefile config.status: creating test/dumps/imports/Makefile config.status: creating test/dumps/jax/Makefile config.status: creating test/dumps/netsnmp/Makefile config.status: creating test/dumps/mosy/Makefile config.status: creating test/dumps/orig-smiv2/Makefile config.status: creating test/dumps/smilint-smiv2/Makefile config.status: creating test/dumps/sming/Makefile config.status: creating test/dumps/smiv1/Makefile config.status: creating test/dumps/smiv2/Makefile config.status: creating test/dumps/smiv2-smiv2/Makefile config.status: creating test/dumps/tree/Makefile config.status: creating test/dumps/types/Makefile config.status: creating test/dumps/identifiers/Makefile config.status: creating test/dumps/metrics/Makefile config.status: creating test/dumps/xml/Makefile config.status: creating test/dumps/cm/Makefile config.status: creating test/dumps/python/Makefile config.status: creating test/dumps/yang/Makefile config.status: creating doc/Makefile config.status: creating lib/smi.h config.status: creating lib/libsmi.3 config.status: creating lib/smi_macro.3 config.status: creating lib/smi_module.3 config.status: creating lib/smi_node.3 config.status: creating lib/smi_type.3 config.status: creating lib/smi_config.3 config.status: creating lib/smi_render.3 config.status: creating lib/smi_util.3 config.status: creating lib/smi_class.3 config.status: creating lib/smi_attribute.3 config.status: creating lib/smi_event.3 config.status: creating lib/smi_identity.3 config.status: creating tools/smistrip config.status: creating tools/smicache config.status: creating tools/smiquery.1 config.status: creating tools/smilint.1 config.status: creating tools/smidump.1 config.status: creating tools/smidiff.1 config.status: creating tools/smistrip.1 config.status: creating tools/smicache.1 config.status: creating tools/smixlate.1 config.status: creating tools/mib2svg.cgi config.status: creating test/parser.test config.status: creating test/smidump-corba.test config.status: creating test/smidump-jax.test config.status: creating test/smidump-netsnmp.test config.status: creating test/smidump-imports.test config.status: creating test/smidump-mosy.test config.status: creating test/smidump-orig-smiv2.test config.status: creating test/smidump-sming.test config.status: creating test/smidump-yang.test config.status: creating test/smidump-smiv1.test config.status: creating test/smidump-smiv2-smiv2.test config.status: creating test/smidump-smiv2.test config.status: creating test/smidump-tree.test config.status: creating test/smidump-types.test config.status: creating test/smidump-identifiers.test config.status: creating test/smidump-metrics.test config.status: creating test/smidump-xml.test config.status: creating test/smidump-cm.test config.status: creating test/smidump-python.test config.status: creating test/smilint-smiv2.test config.status: creating test/smidiff.test config.status: creating libsmi.pc config.status: creating win/config.h config.status: creating config.h config.status: config.h is unchanged config.status: executing depfiles commands config.status: executing default commands ---------8<---------8<---------8<---------8<--------- $ make make all-recursive make[1]: Entering directory `/cygdrive/c/Ruben/SoftLib/libsmi/libsmi-0.4.8' Making all in lib make[2]: Entering directory `/cygdrive/c/Ruben/SoftLib/libsmi/libsmi-0.4.8/lib' /bin/sh ../libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I. -I.. -g -O2 -MT data.lo -MD -MP -MF .deps/data.Tpo -c -o data.lo data.c gcc -DHAVE_CONFIG_H -I. -I.. -g -O2 -MT data.lo -MD -MP -MF .deps/data.Tpo -c data.c -DPIC -o .libs/data.o gcc -DHAVE_CONFIG_H -I. -I.. -g -O2 -MT data.lo -MD -MP -MF .deps/data.Tpo -c data.c -o data.o >/dev/null 2>&1 mv -f .deps/data.Tpo .deps/data.Plo /bin/sh ../libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I. -I.. -g -O2 -MT check.lo -MD -MP -MF .deps/check.Tpo -c -o check.lo check.c gcc -DHAVE_CONFIG_H -I. -I.. -g -O2 -MT check.lo -MD -MP -MF .deps/check.Tpo -c check.c -DPIC -o .libs/check.o gcc -DHAVE_CONFIG_H -I. -I.. -g -O2 -MT check.lo -MD -MP -MF .deps/check.Tpo -c check.c -o check.o >/dev/null 2>&1 mv -f .deps/check.Tpo .deps/check.Plo /bin/sh ../libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I. -I.. -g -O2 -MT error.lo -MD -MP -MF .deps/error.Tpo -c -o error.lo error.c gcc -DHAVE_CONFIG_H -I. -I.. -g -O2 -MT error.lo -MD -MP -MF .deps/error.Tpo -c error.c -DPIC -o .libs/error.o gcc -DHAVE_CONFIG_H -I. -I.. -g -O2 -MT error.lo -MD -MP -MF .deps/error.Tpo -c error.c -o error.o >/dev/null 2>&1 mv -f .deps/error.Tpo .deps/error.Plo /bin/sh ../libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I. -I.. -g -O2 -MT util.lo -MD -MP -MF .deps/util.Tpo -c -o util.lo util.c gcc -DHAVE_CONFIG_H -I. -I.. -g -O2 -MT util.lo -MD -MP -MF .deps/util.Tpo -c util.c -DPIC -o .libs/util.o In file included from util.c:23:0: snprintf.h:50:12: error: conflicting types for 'asnprintf' /usr/include/stdio.h:246:8: note: previous declaration of 'asnprintf' was here snprintf.h:54:12: error: conflicting types for 'vasnprintf' /usr/include/stdio.h:276:8: note: previous declaration of 'vasnprintf' was here Makefile:380: recipe for target `util.lo' failed make[2]: *** [util.lo] Error 1 make[2]: Leaving directory `/cygdrive/c/Ruben/SoftLib/libsmi/libsmi-0.4.8/lib' Makefile:347: recipe for target `all-recursive' failed make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/cygdrive/c/Ruben/SoftLib/libsmi/libsmi-0.4.8' Makefile:239: recipe for target `all' failed make: *** [all] Error 2

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Re: [libsmi] hey
by Samer Vazdekis 07 May '12

07 May '12

hey dont waste anymore time http://www.cnbc119.com

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Libsmi May 2012