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[NET]: Introduce RTA_TABLE/FRA_TABLE attributes

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Introduce RTA_TABLE route attribute and FRA_TABLE routing rule attribute
to hold 32 bit routing table IDs. Usespace compatibility is provided by
continuing to accept and send the rtm_table field, but because of its
limited size it can only carry the low 8 bits of the table ID. This
implies that if larger IDs are used, _all_ userspace programs using them
need to use RTA_TABLE.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy
2006-08-10 23:09:48 -07:00
committed by David S. Miller
parent 2dfe55b47e
commit 9e762a4a89
13 changed files with 45 additions and 12 deletions
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13
net/ipv6/route.c
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@@ -1859,7 +1859,8 @@ int inet6_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
if (inet6_rtm_to_rtmsg(r, arg, &rtmsg))
return -EINVAL;
return ip6_route_del(&rtmsg, nlh, arg, &NETLINK_CB(skb), r->rtm_table);
return ip6_route_del(&rtmsg, nlh, arg, &NETLINK_CB(skb),
rtm_get_table(arg, r->rtm_table));
}
int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
@@ -1869,7 +1870,8 @@ int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
if (inet6_rtm_to_rtmsg(r, arg, &rtmsg))
return -EINVAL;
return ip6_route_add(&rtmsg, nlh, arg, &NETLINK_CB(skb), r->rtm_table);
return ip6_route_add(&rtmsg, nlh, arg, &NETLINK_CB(skb),
rtm_get_table(arg, r->rtm_table));
}
struct rt6_rtnl_dump_arg
@@ -1887,6 +1889,7 @@ static int rt6_fill_node(struct sk_buff *skb, struct rt6_info *rt,
struct nlmsghdr *nlh;
unsigned char *b = skb->tail;
struct rta_cacheinfo ci;
u32 table;
if (prefix) { /* user wants prefix routes only */
if (!(rt->rt6i_flags & RTF_PREFIX_RT)) {
@@ -1902,9 +1905,11 @@ static int rt6_fill_node(struct sk_buff *skb, struct rt6_info *rt,
rtm->rtm_src_len = rt->rt6i_src.plen;
rtm->rtm_tos = 0;
if (rt->rt6i_table)
rtm->rtm_table = rt->rt6i_table->tb6_id;
table = rt->rt6i_table->tb6_id;
else
rtm->rtm_table = RT6_TABLE_UNSPEC;
table = RT6_TABLE_UNSPEC;
rtm->rtm_table = table;
RTA_PUT_U32(skb, RTA_TABLE, table);
if (rt->rt6i_flags&RTF_REJECT)
rtm->rtm_type = RTN_UNREACHABLE;
else if (rt->rt6i_dev && (rt->rt6i_dev->flags&IFF_LOOPBACK))