On Tue, Jun 12, 2012 at 12:32:24AM -0700, Ben Pfaff wrote:
> A work in progress. Doesn't build.
>
> I'm not really sure I want separate OFPUTIL_ constants for OF1.0 and OF1.1
> versions of each message. It's something I'm trying out as I write the
> code.
>
> Signed-off-by: Ben Pfaff <[email protected]>
> ---
[snip]
> diff --git a/lib/ofp-util.c b/lib/ofp-util.c
> index 11c467e..9414cd4 100644
> --- a/lib/ofp-util.c
> +++ b/lib/ofp-util.c
> @@ -263,6 +263,31 @@ ofputil_cls_rule_to_ofp10_match(const struct cls_rule
> *rule,
> memset(match->pad2, '\0', sizeof match->pad2);
> }
>
> +enum ofperr
> +ofputil_pull_ofp11_match(struct ofpbuf *buf, unsigned int priority,
> + struct cls_rule *rule)
Do you have any users outside of lib/ofp-util.c?
Else perhaps this function could be static?
> +{
> + struct ofp11_match_header *omh;
I think that ohm needs to be pulled, so perhaps:
struct ofp11_match_header *omh = ofpbuf_pull(buf, sizeof *omh);
> + struct ofp11_match *om;
> +
> + if (buf->size < sizeof(struct ofp11_match_header)) {
I think that "sizeof *omh" would be consistent with other OVS code
I have read recently.
if (buf->size < sizeof *omh) {
> + return OFPERR_OFPBMC_BAD_LEN;
> + }
> +
> + omh = buf->data;
This line is not needed if omh is set usng ofpbuf_pull().
> + switch (ntohs(omh->type)) {
> + case OFPMT_STANDARD:
> + if (omh->length != htons(sizeof *om) || buf->size < sizeof *om) {
> + return OFPERR_OFPBMC_BAD_LEN;
> + }
> + om = ofpbuf_pull(buf, sizeof *om);
> + return ofputil_cls_rule_from_ofp11_match(om, priority, rule);
> +
> + default:
> + return OFPERR_OFPBMC_BAD_TYPE;
> + }
> +}
> +
> /* Converts the ofp11_match in 'match' into a cls_rule in 'rule', with the
> * given 'priority'. Returns 0 if successful, otherwise an OFPERR_* value.
> */
> enum ofperr
[snip]
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