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[NET] fib_rules: Add no-operation action

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The use of nop rules simplifies the usage of goto rules
and adds more flexibility as they allow targets to remain
while the actual content of the branches can change easly.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Graf 2007-03-26 17:38:53 -07:00 committed by David S. Miller
parent 2b44368307
commit fa0b2d1d21
2 changed files with 4 additions and 2 deletions
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2
include/linux/fib_rules.h
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@ -54,7 +54,7 @@ enum
FR_ACT_UNSPEC,
FR_ACT_TO_TBL, /* Pass to fixed table */
FR_ACT_GOTO, /* Jump to another rule */
FR_ACT_RES2,
FR_ACT_NOP, /* No operation */
FR_ACT_RES3,
FR_ACT_RES4,
FR_ACT_BLACKHOLE, /* Drop without notification */

4
net/core/fib_rules.c
View File

@ -146,7 +146,9 @@ int fib_rules_lookup(struct fib_rules_ops *ops, struct flowi *fl,
rule = target;
goto jumped;
}
} else
} else if (rule->action == FR_ACT_NOP)
continue;
else
err = ops->action(rule, fl, flags, arg);
if (err != -EAGAIN) {