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Lines 629-641
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| 629 |
{ |
629 |
{ |
| 630 |
struct interface_info *ip = packet->interface; |
630 |
struct interface_info *ip = packet->interface; |
| 631 |
struct client_lease *lease; |
631 |
struct client_lease *lease; |
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632 |
struct in_addr addr; |
| 632 |
|
633 |
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| 633 |
/* If we're not receptive to an offer right now, or if the offer |
634 |
/* If we're not receptive to an offer right now, or if the offer |
| 634 |
has an unrecognizable transaction id, then just drop it. */ |
635 |
has an unrecognizable transaction id, then just drop it. */ |
| 635 |
if (packet->interface->client->xid != packet->raw->xid || |
636 |
if (packet->interface->client->xid != packet->raw->xid || |
| 636 |
(packet->interface->hw_address.hlen != packet->raw->hlen) || |
637 |
(packet->interface->hw_address.hlen != packet->raw->hlen) || |
| 637 |
(memcmp(packet->interface->hw_address.haddr, |
638 |
(memcmp(packet->interface->hw_address.haddr, |
| 638 |
packet->raw->chaddr, packet->raw->hlen))) |
639 |
packet->raw->chaddr, packet->raw->hlen)) |
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640 |
) |
| 639 |
return; |
641 |
return; |
| 640 |
|
642 |
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| 641 |
if (ip->client->state != S_REBOOTING && |
643 |
if (ip->client->state != S_REBOOTING && |
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Lines 654-659
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| 654 |
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656 |
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| 655 |
ip->client->new = lease; |
657 |
ip->client->new = lease; |
| 656 |
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658 |
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659 |
/* |
| 660 |
* October 30 2008 - Raffaele De Lorenzo (raffaele.delorenzo@libero.it) |
| 661 |
* Security check - Check if the DHCP server identifier (ip address) match |
| 662 |
* with localhost (127.0.0.0/8). RFC 2131 required a valid server identifier |
| 663 |
* ip address. |
| 664 |
* |
| 665 |
*/ |
| 666 |
bzero (&addr, sizeof (struct in_addr)); |
| 667 |
if (inet_aton (piaddr(packet->client_addr), &addr) != 1){ |
| 668 |
fprintf (stderr, "ERROR - dhcpack - Server address unreadable\n"); |
| 669 |
return; |
| 670 |
} |
| 671 |
/* apply mask at address */ |
| 672 |
addr.s_addr &= 0x000000FF; |
| 673 |
if (addr.s_addr == 0x00007F){ |
| 674 |
fprintf (stderr, "ERROR - dhcpack - Server ID [%s] not valid (localhost)\n", |
| 675 |
piaddr(packet->client_addr)); |
| 676 |
return; |
| 677 |
} |
| 678 |
|
| 657 |
/* Stop resending DHCPREQUEST. */ |
679 |
/* Stop resending DHCPREQUEST. */ |
| 658 |
cancel_timeout(send_request, ip); |
680 |
cancel_timeout(send_request, ip); |
| 659 |
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681 |
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Lines 838-849
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| 838 |
"DHCPOFFER" : "BOOTREPLY"; |
860 |
"DHCPOFFER" : "BOOTREPLY"; |
| 839 |
|
861 |
|
| 840 |
/* If we're not receptive to an offer right now, or if the offer |
862 |
/* If we're not receptive to an offer right now, or if the offer |
| 841 |
has an unrecognizable transaction id, then just drop it. */ |
863 |
has an unrecognizable transaction id, then just drop it. |
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864 |
*/ |
| 865 |
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| 866 |
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| 842 |
if (ip->client->state != S_SELECTING || |
867 |
if (ip->client->state != S_SELECTING || |
| 843 |
packet->interface->client->xid != packet->raw->xid || |
868 |
packet->interface->client->xid != packet->raw->xid || |
| 844 |
(packet->interface->hw_address.hlen != packet->raw->hlen) || |
869 |
(packet->interface->hw_address.hlen != packet->raw->hlen) || |
| 845 |
(memcmp(packet->interface->hw_address.haddr, |
870 |
(memcmp(packet->interface->hw_address.haddr, |
| 846 |
packet->raw->chaddr, packet->raw->hlen))) |
871 |
packet->raw->chaddr, packet->raw->hlen)) |
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|
872 |
) |
| 847 |
return; |
873 |
return; |
| 848 |
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874 |
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| 849 |
note("%s from %s", name, piaddr(packet->client_addr)); |
875 |
note("%s from %s", name, piaddr(packet->client_addr)); |