void FUN_00404e0c(int param_1,int param_2,undefined2 param_3,byte *param_4,undefined2 param_5,

                 char param_6)

{

  undefined **ppuVar1;

  int *piVar2;

  ushort uVar3;

  int iVar4;

  char cVar5;

  undefined4 uVar6;

  undefined **ppuVar7;

  uint uVar8;

  uint uVar9;

  undefined *puVar10;

  char *pcVar11;

  undefined **ppuVar12;

  iVar4 = g_conf;

  uVar8 = *(uint *)(g_conf + 0x70) + 1;

  *(uint *)(g_conf + 0x74) = (uint)(uVar8 < *(uint *)(g_conf + 0x70)) + *(int *)(g_conf + 0x74);

  *(uint *)(iVar4 + 0x70) = uVar8;

  uVar8 = *(uint *)(param_1 + 0x78) + 1;

  *(uint *)(param_1 + 0x7c) = (uint)(uVar8 < *(uint *)(param_1 + 0x78)) + *(int *)(param_1 + 0x7c);

  *(uint *)(param_1 + 0x78) = uVar8;

  puVar10 = (undefined *)(uint)*param_4;

  if ((((((uint)(puVar10 + 0x7d) & 0xff) < 2) || (puVar10 == (undefined *)0x8f)) ||

      (puVar10 == (undefined *)0xce)) ||

     ((puVar10 == (undefined *)0x82 || (puVar10 == (undefined *)0x80)))) {

    uVar3 = *(ushort *)(param_4 + 2);

    param_4[2] = 0;

    param_4[3] = 0;

    uVar8 = FUN_004011e0(param_2,0x3a,param_4,param_5);

    *(short *)(param_4 + 2) = (short)uVar8;

    if (uVar8 != uVar3) {

      puVar10 = (undefined *)(uint)*param_4;

      ppuVar7 = &PTR_s_Destination_Unreachable_0041a114;

      do {

        pcVar11 = *ppuVar7;

        if (pcVar11 == (char *)0x0) {

          pcVar11 = "Unknown";

          break;

        }

        ppuVar12 = ppuVar7 + -1;

        ppuVar7 = ppuVar7 + 2;

      } while (*ppuVar12 != puVar10);

      uVar6 = FUN_00401330(puVar10,param_4[1]);

      dolog(4,"CORRUPT->DROP (%s): Received a ICMPv6 %s (%u) with wrong checksum (%x vs %x)\n",

            param_1 + 4,pcVar11,puVar10,uVar6,param_4[1],*(undefined2 *)(param_4 + 2),(uint)uVar3);

    }

    ppuVar12 = &PTR_s_Destination_Unreachable_0041a114;

    puVar10 = (undefined *)(uint)*param_4;

    ppuVar7 = ppuVar12;

    do {

      pcVar11 = *ppuVar7;

      if (pcVar11 == (char *)0x0) {

        pcVar11 = "Unknown";

        break;

      }

      ppuVar1 = ppuVar7 + -1;

      ppuVar7 = ppuVar7 + 2;

    } while (*ppuVar1 != puVar10);

    uVar6 = FUN_00401330(puVar10,param_4[1]);

    dolog(7,"Received ICMPv6: %s (%u), %s (%u) received on %s\n",pcVar11,puVar10,uVar6,param_4[1],

          param_1 + 4);

    puVar10 = (undefined *)(uint)*param_4;

    if (puVar10 == (undefined *)0x80) {

      cVar5 = *(char *)(param_2 + 7)   //possible issue identified - semgrep

      if (cVar5 != '\0') {

        *(char *)(param_2 + 7) = cVar5 + -1;

        cVar5 = *(char *)(param_2 + 7)   //possible issue identified - semgrep

      }

      iVar4 = g_conf;

      if (cVar5 == '\0') {

        uVar8 = *(uint *)(g_conf + 0x80);

        piVar2 = (int *)(g_conf + 0x84);

        uVar9 = uVar8 + 1;

        *(uint *)(g_conf + 0x80) = uVar9;

        *(uint *)(iVar4 + 0x84) = (uint)(uVar9 < uVar8) + *piVar2;

        FUN_00404c14(param_1,param_2 + 8,0x81,0);

        return;

      }

      if (param_6 != '\0') {

        dolog(4,

              "Ignoring (%s): ICMPv6 Echo Req because header chain includes some of extension headers\n"

              ,param_1 + 4);

        return;

      }

      FUN_00402e60(param_1,param_2,param_3);

      return;

    }

    if ((*(uint *)(param_2 + 8) & 0xc0ff) != 0x80fe) {

      FUN_00401448(4,"Ignoring non-LinkLocal MLD from %s received on %s/%u\n",param_2 + 8,param_1);

      return;

    }

    if (puVar10 == (undefined *)0x83) {

      FUN_004043b8(param_1,param_2,param_3,param_4);

      return;

    }

    if (puVar10 == (undefined *)0x84) {

      FUN_00404a90(param_1,param_2,param_3,param_4);

      return;

    }

    if ((puVar10 == (undefined *)0x8f) || (puVar10 == (undefined *)0xce)) {

      FUN_00403fe8(param_1,param_2,param_3,param_4);

      return;

    }

    if (puVar10 == (undefined *)0x82) {

      FUN_00403d0c(param_1,param_2,param_3,param_4);

      return;

    }

    do {

      pcVar11 = *ppuVar12;

      if (pcVar11 == (char *)0x0) {

        pcVar11 = "Unknown";

        break;

      }

      ppuVar7 = ppuVar12 + -1;

      ppuVar12 = ppuVar12 + 2;

    } while (*ppuVar7 != puVar10);

    FUN_00401330(puVar10,param_4[1]);

    dolog(7,"ICMP type %s (%u), %s (%u) got through\n",pcVar11,puVar10);

    return;

  }

  ppuVar7 = &PTR_s_Destination_Unreachable_0041a114;

  do {

    pcVar11 = *ppuVar7;

    if (pcVar11 == (char *)0x0) {

      pcVar11 = "Unknown";

      break;

    }

    ppuVar12 = ppuVar7 + -1;

    ppuVar7 = ppuVar7 + 2;

  } while (*ppuVar12 != puVar10);

  uVar6 = FUN_00401330(puVar10,param_4[1]);

  dolog(7,"Ignoring ICMPv6: %s (%u), %s (%u) received on %s\n",pcVar11,puVar10,uVar6,param_4[1],

        param_1 + 4);

  return;

}