gosmi Load modules not loading mib files properly and giving oid's as blank

[tanujashinde0405]

I have been trying to use gosmi for parsing mib's in my code. I have few mib's with me from which 2 mib's are parsing properly and giving proper parsed modules with all the data. but there are few mib's which are getting loaded without any error but when I try to print the nodes from loded module, i see oid's are coming as blank. it is a valid mib but still failing to get parsed in gosmi.
below is the code as well as output :
`package main

import (
"fmt"
"os"
"path/filepath"

"github.com/sleepinggenius2/gosmi"

)

func main() {

var folder string = "/root/testgosmi/mibs"
// Initialize the parser
gosmi.Init()
gosmi.SetPath(folder)
var files []string

err := filepath.Walk(folder, func(path string, info os.FileInfo, err error) error {
	if info.IsDir() {
		return nil
	}
	files = append(files, path)
	return nil
})
if err != nil {
	fmt.Println(err)
}

for _, file := range files {
	filename := filepath.Base(file)
	modulename, err := gosmi.LoadModule(filename)
	if err != nil {
		fmt.Printf("Failed to load MIB module: %v\n", err)
		return
	}
	fmt.Println(modulename)
}

loadedModules := gosmi.GetLoadedModules()
fmt.Println("Loaded modules:")
for _, loadedModule := range loadedModules {
	fmt.Println(loadedModule.Name, loadedModule.Path)
	nodes := loadedModule.GetNodes()
	for _, node := range nodes {
		fmt.Println(node.Name)
		fmt.Println(node.Oid)
	}
}

}
`

output for a successfully parsed mib:
Loaded modules: <well-known> TRIMBLE-MIB /root/testgosmi/mibs/TRIMBLE-MIB.mib trimble 1.3.6.1.4.1.46285 trimbleTiming 1.3.6.1.4.1.46285.1 trimbleTBlt 1.3.6.1.4.1.46285.1.1

output for mib which is giving error:
`TRAP-MIB /root/dummytrap/mibs/test.mib
Traps

MIBNotifObjects

TrapTimeStamp

TrapSeverity

TrapFunctionalArea

`

if you see in above output only node names are getting printed and oid's are coming as blank. so I want able to use GetNodeByOID function in order to fetch node data from above parsed mib.
It would be helpful to know if there is anything i am doing wrong. I tried to parse the same mib using Parser and it works for both mib files but as it dosent have GetNodeByOID i wanted to continue with smi parser.

[tanujashinde0405]

Tried Parsing few mib's from internet and same issue facing there also.

[sleepinggenius2]

I don't have a copy of the referenced MIB, but the most common reason for this is missing dependencies. You need to make sure that every MIB that is being imported is either manually loaded or in the search path to be auto-loaded. Otherwise, you end up with an isolated subtree and no path to it from the root.

[tanujashinde0405]

I don't have a copy of the referenced MIB, but the most common reason for this is missing dependencies. You need to make sure that every MIB that is being imported is either manually loaded or in the search path to be auto-loaded. Otherwise, you end up with an isolated subtree and no path to it from the root.

Thank you for reaching out so quickly. I wont be able to share the mib's which I am using , but could you please provide few valid mib's which you used during testing gosmi, so that I can confirm the code is working properly with valid mib's. It would be a great help.

[srebhan]

@sleepinggenius2 we do have the same issue in Telegraf (influxdata/telegraf#10446) even though we are explicitly import all required MIB files.

I prepared some runnable code showing the issue. It turns out that the loading order of the files is important if we cannot rely on auto-loading due to the naming differences. So if you load the files in the import-hierarchy order everything works, but if a user specifies a bunch of files in arbitrary order (e.g. by specifying a directory) things break...