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fib_rules: fix suppressor names and default values

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This change brings the suppressor attribute names into line; it also changes
the data types to provide a more consistent interface.

While -1 indicates that the suppressor is not enabled, values >= 0 for
suppress_prefixlen or suppress_ifgroup  reject routing decisions violating the
constraint.

This changes the previously presented behaviour of suppress_prefixlen, where a
prefix length _less_ than the attribute value was rejected. After this change,
a prefix length less than *or* equal to the value is considered a violation of
the rule constraint.

It also changes the default values for default and newly added rules (disabling
any suppression for those).

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 2013-08-03 14:14:43 +02:00 • committed by David S. Miller
parent 0c0667a854
commit 73f5698e77
5 changed files with 16 additions and 9 deletions
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4
include/net/fib_rules.h
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@ -19,7 +19,7 @@ struct fib_rule {
u32 flags;
u32 table;
int suppress_ifgroup;
u8 table_prefixlen_min;
int suppress_prefixlen;
u8 action;
u32 target;
struct fib_rule __rcu *ctarget;
@ -84,7 +84,7 @@ struct fib_rules_ops {
[FRA_FWMARK] = { .type = NLA_U32 }, \
[FRA_FWMASK] = { .type = NLA_U32 }, \
[FRA_TABLE] = { .type = NLA_U32 }, \
[FRA_TABLE_PREFIXLEN_MIN] = { .type = NLA_U8 }, \
[FRA_SUPPRESS_PREFIXLEN] = { .type = NLA_U32 }, \
[FRA_SUPPRESS_IFGROUP] = { .type = NLA_U32 }, \
[FRA_GOTO] = { .type = NLA_U32 }