mrtg (mereni prenesenych dat)

[Jakub Dadak]

>> byty nejakym prumernym poctem bytu na paket, ktere se v snmpd
>> scitaji. Existoval patch, ktery do snmpd pridal korektni
>> scitani prenesenych bytu primo pres ipfwadm pravidla. Ja jsem si pozdeji
>jednotlive interface mi uplne staci
>mohl by jste zhruba nasmerovat kde roste patch


To je trosku problem, mam to na asi dost starou verzi cmu-snmpd 3.5.
Jde o to upravit rutinu l_get_acctstat, ktera nacita patricne hodnoty
bytu. Posilam alespon tuto rutinu, kterou zmenite a melo by to jet.
Zkousel jsem to zhruba pred rokem snad se kod uvnitr cmu-snmpd prilis
nezmenil. Zkuste kdyztak napsat primo autoroci cmu-snmpd, svuj patch
jsem mu posilal, treba jej nekde ma :-)

                JD

--
  ,{(~)~(},       Dadak Jakub             Brain Systems s.r.o.
,( ((~) ){){}     dadman na brainsys.cz      Rybkova 1, Brno 602 00
())~{)}{{}~()}    http://www.dadak.cz     http://www.brainsys.cz
`~^    ^~{()}     Tel. +420 5 41148704    Fax. +420 5 41148852
           ~~     Motto:                  Things are different !



upravit soubor apps/snmp_vars.c nekde kolem radku 4000 ve verzi 3.5


/*
 * lookup accounting rules for traffic through a specific interface,
 * without other restriction.
 * any interface statistics found in th accounting table are used.
 */
static void
l_get_acctstat ()
{
  int f = 0, g = 0;
  char fullname [80], target[10];
  FILE *acct;

 if ((acct = fopen("/proc/net/ip_fwchains", "r"))) {
    unsigned long pkt_in, oct_in, pkt_out, oct_out, proto;
    int result, flags;

    while (f == 0 || g == 0) {
      unsigned int saddr, smask, daddr, dmask, proto;

      fullname [0] = 0;
      result = fscanf(acct,
 */
static void
l_get_acctstat ()
{
  int f = 0, g = 0;
  char fullname [80], target[10];
  FILE *acct;
 
 if ((acct = fopen("/proc/net/ip_fwchains", "r"))) {
    unsigned long pkt_in, oct_in, pkt_out, oct_out, proto;
    int result, flags;
 
    while (f == 0 || g == 0) {
      unsigned int saddr, smask, daddr, dmask, proto;
   
      fullname [0] = 0;
      result = fscanf(acct,
            "%9s "          // Chain name
            "%08lX/%08lX->%08lX/%08lX " // Source & Destination IPs
            "%*16s "            // Interface
            "%*lu %*lu "        // fw_flg and fw_invflg fields
            "%u "           // Protocol
            "%u %u %u %u "      // Packet & byte counters
            "%*u-%*u %*u-%*u "      // Source & Dest port ranges
            "A%*02X X%*02X "        // TOS and and xor masks
            "%*08X "            // Redirection port
            "%*u "          // fw_mark field
            "%*u "          // output size
            "%9s\n",            // Target
            fullname,
            &saddr, &smask,
            &daddr, &dmask,
            &proto,
            &pkt_in, &pkt_out, &oct_in, &oct_out, target);

     if ( result != 11 ) {
    break;
     }


      if (! saddr && ! smask && ! daddr && ! dmask) {
    struct ifnet *ifn;
    char tmpstr[100];

    for (ifn = ifnetaddr_list; ifn; ifn = ifn->if_next) {
        sprintf(tmpstr, "%s-in", ifn->if_name);
        if (!strcmp (tmpstr, target)) {
            ifn->if_ipackets = pkt_out;
            ifn->if_ibytes = oct_out;
            break;
        }
        sprintf(tmpstr, "%s-out", ifn->if_name);
        if (!strcmp (tmpstr, target)) {
            ifn->if_opackets = pkt_out;
            ifn->if_obytes = oct_out;
            break;

        }
    }
      }
    }
    fclose(acct);
  }
}

#endif /* linux */