From: Marek Lindner <lindner_marek@yahoo.de>
To: b.a.t.m.a.n@lists.open-mesh.org
Subject: Re: [B.A.T.M.A.N.] [PATCH-marek] batman-adv: Unify the first 3 bytes in each packet
Date: Sat, 28 May 2011 14:17:14 +0200 [thread overview]
Message-ID: <201105281417.16069.lindner_marek@yahoo.de> (raw)
In-Reply-To: <201105281407.15153.sven@narfation.org>
On Saturday 28 May 2011 14:07:10 Sven Eckelmann wrote:
> Why dont you use the reserverd part for the flags which are currently not
> in unicast? Then you could also remove that other align byte. It would
> still be possible to add flags to unicast packets when necessary.
The unicast_frag header assumes it looks like the unicast header plus some
extra fields:
struct unicast_frag_packet {
struct unicast_packet unicast_packet;
uint8_t flags;
uint8_t align;
uint8_t orig[6];
uint16_t seqno;
};
We probably should add a little comment there to make that clear.
Both reserved fields (unicast + unicast frag) are going to be converted to
ttvn with the tt patches.
> > + uint8_t reserved;
> > + uint8_t orig[6];
> >
> > uint32_t seqno;
> >
> > } __packed;
>
> Wouldn't that lead to an unaligned seqno?
Yes, I overlooked that the seqno is 32bit wide.
Regards,
Marek
next prev parent reply other threads:[~2011-05-28 12:17 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-27 22:10 [B.A.T.M.A.N.] [PATCH] batman-adv: move the ttl field to the third position of unicast_* packets Antonio Quartulli
2011-05-27 22:20 ` Sven Eckelmann
2011-05-27 22:35 ` Marek Lindner
2011-05-28 7:26 ` Sven Eckelmann
2011-05-28 8:43 ` [B.A.T.M.A.N.] [PATCH-sven] batman-adv: Unify the first 4 bytes in each packet Sven Eckelmann
2011-05-28 11:45 ` [B.A.T.M.A.N.] [PATCH-marek] batman-adv: Unify the first 3 " Marek Lindner
2011-05-28 12:07 ` Sven Eckelmann
2011-05-28 12:17 ` Marek Lindner [this message]
2011-05-28 12:43 ` Sven Eckelmann
2011-05-28 12:51 ` [B.A.T.M.A.N.] [PATCHv3-sven] " Sven Eckelmann
2011-05-28 15:08 ` Marek Lindner
2011-05-28 11:46 ` [B.A.T.M.A.N.] [PATCH-sven] batman-adv: Unify the first 4 " Sven Eckelmann
2011-05-28 11:46 ` [B.A.T.M.A.N.] [PATCHv2-sven] batman-adv: Unify the first 3 " Sven Eckelmann
2011-05-28 11:20 ` [B.A.T.M.A.N.] [PATCH] batman-adv: move the ttl field to the third position of unicast_* packets Marek Lindner
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