On 10/16/14 at 11:38am, Pravin B Shelar wrote:
> Routing table will be used by ovs userspace tunneling, it need to
> know gw address, following commit extract gw information from
> netlink message so that ovs can populate it in ovs route table.
>
> Signed-off-by: Pravin B Shelar <pshe...@nicira.com>
> ---
> lib/route-table.c | 9 ++++++++-
> 1 files changed, 8 insertions(+), 1 deletions(-)
>
> diff --git a/lib/route-table.c b/lib/route-table.c
> index cb8f0f7..b168315 100644
> --- a/lib/route-table.c
> +++ b/lib/route-table.c
> @@ -41,6 +41,7 @@ struct route_data {
>
> /* Extracted from Netlink attributes. */
> ovs_be32 rta_dst; /* 0 if missing. */
> + ovs_be32 rta_gw;
> char ifname[IFNAMSIZ]; /* Interface name. */
> };
>
> @@ -205,6 +206,7 @@ route_table_parse(struct ofpbuf *buf, struct
> route_table_msg *change)
> static const struct nl_policy policy[] = {
> [RTA_DST] = { .type = NL_A_U32, .optional = true },
> [RTA_OIF] = { .type = NL_A_U32, .optional = false },
> + [RTA_GATEWAY] = { .type = NL_A_U32, .optional = true },
> };
>
> struct nlattr *attrs[ARRAY_SIZE(policy)];
> @@ -251,6 +253,10 @@ route_table_parse(struct ofpbuf *buf, struct
> route_table_msg *change)
> if (attrs[RTA_DST]) {
> change->rd.rta_dst = nl_attr_get_be32(attrs[RTA_DST]);
> }
> + if (attrs[RTA_GATEWAY]) {
> + change->rd.rta_gw = nl_attr_get_be32(attrs[RTA_GATEWAY]);
> + }
Note that this only works for single nexthop routes. Probably good
enough for now but we should eventually convert this to use the
fib lookup Netlink API to correctly work with multipath routes.
Acked-by: Thomas Graf <tg...@noironetworks.com>
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