netdev - Re: [PATCH v2] net: tso: add support for IPv6

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 26 Oct 2015 13:03:11 +0900
From:	Toshiaki Makita <makita.toshiaki@....ntt.co.jp>
To:	Emmanuel Grumbach <emmanuel.grumbach@...el.com>,
	netdev@...r.kernel.org
Cc:	linux-wireless@...r.kernel.org, egrumbach@...il.com
Subject: Re: [PATCH v2] net: tso: add support for IPv6

On 2015/10/26 5:02, Emmanuel Grumbach wrote:
> Adding IPv6 for the TSO helper API is trivial:
> * Don't play with the id (which doesn't exist in IPv6)
> * Correctly update the payload_len (don't include the
>   length of the IP header itself)
...
>  	memcpy(hdr, skb->data, hdr_len);
> -	iph = (struct iphdr *)(hdr + mac_hdr_len);
> -	iph->id = htons(tso->ip_id);
> -	iph->tot_len = htons(size + hdr_len - mac_hdr_len);
> +	if (skb->protocol == htons(ETH_P_IP)) {

I guess this should be vlan_get_protocol(skb).

> +		struct iphdr *iph = (void *)(hdr + mac_hdr_len);
> +
> +		iph->id = htons(tso->ip_id);
> +		iph->tot_len = htons(size + hdr_len - mac_hdr_len);
> +		tso->ip_id++;
> +	} else if (skb->protocol == htons(ETH_P_IPV6)) {

Likewise.

Toshiaki Makita

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html