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| author | Thomas Graf <tgraf@suug.ch> | 2007-03-26 17:37:59 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-04-25 22:28:13 -0700 |
| commit | 2b44368307cd06c5614d7b53801f516c0654020b (patch) | |
| tree | a766c892dd0fc5a0266c25102eda1106b79fd14c /net/core | |
| parent | 0947c9fe56d9cf7ad0bc3a03ccd30446cde698e4 (diff) | |
| download | op-kernel-dev-2b44368307cd06c5614d7b53801f516c0654020b.zip op-kernel-dev-2b44368307cd06c5614d7b53801f516c0654020b.tar.gz | |
[NET] fib_rules: Mark rules detached from the device
Rules which match against device names in their selector can
remain while the device itself disappears, in fact the device
doesn't have to present when the rule is added in the first
place. The device name is resolved by trying when the rule is
added and later by listening to NETDEV_REGISTER/UNREGISTER
notifications.
This patch adds the flag FIB_RULE_DEV_DETACHED which is set
towards userspace when a rule contains a device match which
is unresolved at the moment. This eases spotting the reason
why certain rules seem not to function properly.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/fib_rules.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c index 0d8bb2e..7ac602c 100644 --- a/net/core/fib_rules.c +++ b/net/core/fib_rules.c @@ -450,9 +450,13 @@ static int fib_nl_fill_rule(struct sk_buff *skb, struct fib_rule *rule, if (rule->action == FR_ACT_GOTO && rule->ctarget == NULL) frh->flags |= FIB_RULE_UNRESOLVED; - if (rule->ifname[0]) + if (rule->ifname[0]) { NLA_PUT_STRING(skb, FRA_IFNAME, rule->ifname); + if (rule->ifindex == -1) + frh->flags |= FIB_RULE_DEV_DETACHED; + } + if (rule->pref) NLA_PUT_U32(skb, FRA_PRIORITY, rule->pref); |
