netfilter: xt_time: add support to ignore day transition

Currently, if you want to do something like:
"match Monday, starting 23:00, for two hours"
You need two rules, one for Mon 23:00 to 0:00 and one for Tue 0:00-1:00.

The rule: --weekdays Mo --timestart 23:00  --timestop 01:00

looks correct, but it will first match on monday from midnight to 1 a.m.
and then again for another hour from 23:00 onwards.

This permits userspace to explicitly ignore the day transition and
match for a single, continuous time period instead.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Florian Westphal
2012-09-17 00:23:09 +00:00
committed by Pablo Neira Ayuso
parent 3e0304a583
commit 54eb3df3a7
2 changed files with 28 additions and 1 deletions

View File

@ -17,6 +17,9 @@ enum {
/* Match against local time (instead of UTC) */
XT_TIME_LOCAL_TZ = 1 << 0,
/* treat timestart > timestop (e.g. 23:00-01:00) as single period */
XT_TIME_CONTIGUOUS = 1 << 1,
/* Shortcuts */
XT_TIME_ALL_MONTHDAYS = 0xFFFFFFFE,
XT_TIME_ALL_WEEKDAYS = 0xFE,
@ -24,4 +27,6 @@ enum {
XT_TIME_MAX_DAYTIME = 24 * 60 * 60 - 1,
};
#define XT_TIME_ALL_FLAGS (XT_TIME_LOCAL_TZ|XT_TIME_CONTIGUOUS)
#endif /* _XT_TIME_H */