xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

fib_rules: add route suppression based on ifgroup

Browse Source 
This change adds the ability to suppress a routing decision based upon the
interface group the selected interface belongs to. This allows it to
exclude specific devices from a routing decision.

Signed-off-by: Stefan Tomanek <stefan.tomanek@wertarbyte.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stefan Tomanek
2013-08-02 17:19:56 +02:00
committed by David S. Miller
parent d1c53c8e87
commit 6ef94cfafb
5 changed files with 43 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
net/core/fib_rules.c
View File

@@ -343,6 +343,9 @@ static int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh)
if (tb[FRA_TABLE_PREFIXLEN_MIN])
rule->table_prefixlen_min = nla_get_u8(tb[FRA_TABLE_PREFIXLEN_MIN]);
if (tb[FRA_SUPPRESS_IFGROUP])
rule->suppress_ifgroup = nla_get_u32(tb[FRA_SUPPRESS_IFGROUP]);
if (!tb[FRA_PRIORITY] && ops->default_pref)
rule->pref = ops->default_pref(ops);
@@ -529,6 +532,7 @@ static inline size_t fib_rule_nlmsg_size(struct fib_rules_ops *ops,
+ nla_total_size(4) /* FRA_PRIORITY */
+ nla_total_size(4) /* FRA_TABLE */
+ nla_total_size(1) /* FRA_TABLE_PREFIXLEN_MIN */
+ nla_total_size(4) /* FRA_SUPPRESS_IFGROUP */
+ nla_total_size(4) /* FRA_FWMARK */
+ nla_total_size(4); /* FRA_FWMASK */
@@ -588,6 +592,12 @@ static int fib_nl_fill_rule(struct sk_buff *skb, struct fib_rule *rule,
(rule->target &&
nla_put_u32(skb, FRA_GOTO, rule->target)))
goto nla_put_failure;
if (rule->suppress_ifgroup != -1) {
if (nla_put_u32(skb, FRA_SUPPRESS_IFGROUP, rule->suppress_ifgroup))
goto nla_put_failure;
}
if (ops->fill(rule, skb, frh) < 0)
goto nla_put_failure;