Attachment 157925 Details for Bug 245787 – Patch to make gratuitous ARP's generated by send_arp RFC2002-compliant

[patch] Patch to make gratuitous ARP's generated by send_arp RFC2002-compliant

piranha-0.8.4-send_arp-fix-grat-arp-rfc2002-compliance.patch (text/plain), 1.10 KB, created by Vince Worthington on 2007-06-26 18:00:21 UTC

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Creator: Vince Worthington

Created: 2007-06-26 18:00:21 UTC

Size: 1.10 KB

patch

obsolete

>--- piranha/send_arp.c.grat_arp	2002-01-18 13:05:01.000000000 -0500
>+++ piranha/send_arp.c	2007-06-26 13:25:30.000000000 -0400
>@@ -101,13 +101,22 @@ main (int argc, char **argv)
>   pkt.prot_addr_size = IP_ADDR_LEN;
>   pkt.op = htons (OP_ARP_REQUEST);
> 
>+  /* per RFC2002, when sending ARP reply-type
>+     gratuitous arps, both the ARP sender hardware
>+     address *AND* ARP target hardware address are
>+     set to the MAC address we wish to update arp
>+     entries for */
>   get_hw_addr (pkt.targ_hw_addr, argv[4]);
>-  get_hw_addr (pkt.rcpt_hw_addr, argv[4]);
>+  get_hw_addr (pkt.rcpt_hw_addr, argv[2]);
>   get_hw_addr (pkt.src_hw_addr, argv[2]);
>   get_hw_addr (pkt.sndr_hw_addr, argv[2]);
> 
>+  /* per RFC2002, gratuitous ARP's have both
>+     the ARP Sender Protocol Address *AND* the
>+     ARP Target Protocol Address set to the IP
>+     of the ARP cache entry we wish to update */
>   get_ip_addr (&src_in_addr, argv[1]);
>-  get_ip_addr (&targ_in_addr, argv[3]);
>+  get_ip_addr (&targ_in_addr, argv[1]);
> 
>   memcpy (pkt.sndr_ip_addr, &src_in_addr, IP_ADDR_LEN);
>   memcpy (pkt.rcpt_ip_addr, &targ_in_addr, IP_ADDR_LEN);

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Attachments on bug 245787: 157925 | 157928