Question

这是我过去使用perl：

遍历net:snmp表格的代码

      #! /usr/local/bin/perl

      use strict;
      use warnings;

      use Net::SNMP qw(:snmp);

      my $OID_hrSystem = '1.3.6.1.2.1.25.1';
      my $OID_ifPhysAddress = '1.3.6.1.2.1.2.2.1.6';        

      my ($session, $error) = Net::SNMP->session(
         -hostname    => shift || 'localhost',
         -community   => shift || 'public',
         -nonblocking => 1,
         -translate   => [-octetstring => 0],
         -version     => 'snmpv2c',
      );

      if (!defined $session) {
         printf "ERROR: %s.\n", $error;
         exit 1;
      }

      my %table; # Hash to store the results

      my $result = $session->get_bulk_request(
         -varbindlist    => [ $OID_hrSystem ],
         -callback       => [ \&table_callback, \%table ],
         -maxrepetitions => 10,
      );

      if (!defined $result) {
         printf "ERROR: %s\n", $session->error();
         $session->close();
         exit 1;
      }

      # Now initiate the SNMP message exchange.

      snmp_dispatcher();

      $session->close();

      # Print the results, specifically formatting ifPhysAddress.

      for my $oid (oid_lex_sort(keys %table)) {
         if (!oid_base_match($OID_ifPhysAddress, $oid)) {
            printf "%s = %s\n", $oid, $table{$oid};                 
         } else {                                   
            printf "%s = %s\n", $oid, unpack 'H*', $table{$oid};
         }                                      
      }

      exit 0;

      sub table_callback
      {
         my ($session, $table) = @_;

         my $list = $session->var_bind_list();

         if (!defined $list) {
            printf "ERROR: %s\n", $session->error();
            return;
         }

         # Loop through each of the OIDs in the response and assign
         # the key/value pairs to the reference that was passed with
         # the callback.  Make sure that we are still in the table
         # before assigning the key/values.

         my @names = $session->var_bind_names();
         my $next  = undef;

         while (@names) {
            $next = shift @names;
            if (!oid_base_match($OID_hrSystem, $next)) {
               return; # Table is done. chakri
            }
            $table->{$next} = $list->{$next};
         }

         # Table is not done, send another request, starting at the last
         # OBJECT IDENTIFIER in the response.  No need to include the
         # calback argument, the same callback that was specified for the
         # original request will be used.

         my $result = $session->get_bulk_request(
            -varbindlist    => [ $next ],
            -maxrepetitions => 10,
         );

         if (!defined $result) {
            printf "ERROR: %s.\n", $session->error();
         }

         return;
      }

输出是：

1.3.6.1.2.1.25.1.1.0 = 1 hour, 12:00.77

1.3.6.1.2.1.25.1.2.0 = �
                        +

1.3.6.1.2.1.25.1.3.0 = 1536

1.3.6.1.2.1.25.1.4.0 = BOOT_IMAGE=/boot/vmlinuz-3.0.0-14-generic root=UUID=5c4c8d22-3cea-4410-aaad-f297c75d217e ro quiet splash vt.handoff=7

1.3.6.1.2.1.25.1.5.0 = 1

1.3.6.1.2.1.25.1.6.0 = 133

1.3.6.1.2.1.25.1.7.0 = 0

但我所需的输出如下：

hrSystemUptime.0 = 1:08:54.36

hrSystemDate.0 = 2011-12-14,16:0:2.0,+1:0

hrSystemInitialLoadDevice.0 = 1536

hrSystemInitialLoadParameters.0 = "BOOT_IMAGE=/boot/vmlinuz-3.0.0-14-generic root=UUID=5c4c8d22-3cea-4410-aaad-f297c75d217e ro quiet splash vt.handoff=7"

hrSystemNumUsers.0 = 1

hrSystemProcesses.0 = 133

hrSystemMaxProcesses.0 = 0

输出中的主要内容是我想在输出中打印mib名称而不是mib值

Answer 1

您可以使用SNMP module（在Ubuntu上可用libsnmp-perl），它为加载的MIB %SNMP::MIB提供绑定哈希。这是一些示例代码：

use SNMP;
SNMP::initMib();
print "$SNMP::MIB{'1.3.6.1.2.1.25.1.1.0'}{label} = \n";
#Should print "hrSystemUptime = "

因为%SNMP::MIB是一个绑定哈希，所以你不能只进行查找并分配给词法变量，即my $oid = $SNMP::MIB{$oidstr}。你必须每次都直接访问它。

它从MIB加载了许多其他信息，包括数据类型，这可能有助于解决您使用hrSystemDate时出现的问题。另外，如果您需要加载特定的MIB，请参阅the man page for mib_api。但是，您的示例中使用的那些默认情况下会在我的系统上加载。

Answer 2

您是否在服务器上尝试过snmpget命令？当我在CLI上运行snmpget direcly时，结果出现了名称：

Ex：/ usr / local / bin / snmpget -O Q -v 2c -c Community x.x.x.x .1.3.6.1.2.1.31.1.1.1.6.100663301 IF-MIB :: ifHCInOctets.100663301 = 152528664859348

如果它适用于您，您可能希望在PERL代码中执行该命令，而不是使用LIB。然后你只需处理输出。

此外，tou可以使用snmptranslate转换您的OID：

Ex：/ usr / local / bin / snmptranslate 1.3.6.1.2.1.25.1.1

HOST-RESOURCES-MIB :: hrSystemUptime

更多信息 - ＆gt; http://www.net-snmp.org/wiki/index.php/TUT:snmptranslate

修改

你为什么不：

my $pathSnmpTranslate = '/your/path/to/snmptranslate'; for my $oid (oid_lex_sort(keys %table)) { my $oidTrans = `$pathSnmpTranslate $oid`; if (!oid_base_match($OID_ifPhysAddress, $oid)) { printf "%s = %s\n", $oidTrans, $table{$oid}; } else { printf "%s = %s\n", $oidTrans, unpack 'H*',$table{$oid}; } }

在我的机器上它起作用了：

> /xxx % /usr/local/bin/snmptranslate 1.3.6.1.2.1.25.1.1
HOST-RESOURCES-MIB :: hrSystemUptime

> /xxx % /usr/local/bin/snmptranslate 1.3.6.1.2.1.25.1.1.0
HOST-RESOURCES-MIB :: hrSystemUptime.0

mib名称从perl中的mib值打印

2 个答案: