diff options
| -rw-r--r-- | share/man/man5/pf.conf.5 | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/share/man/man5/pf.conf.5 b/share/man/man5/pf.conf.5 index 00fbd4421e7f..7b97657d7d1c 100644 --- a/share/man/man5/pf.conf.5 +++ b/share/man/man5/pf.conf.5 @@ -1236,8 +1236,10 @@ below. .Xr pf 4 has the ability to .Ar block -and +, .Ar pass +and +.Ar match packets based on attributes of their layer 3 (see .Xr ip 4 and @@ -1253,7 +1255,15 @@ assigned to queues for the purpose of bandwidth control. .Pp For each packet processed by the packet filter, the filter rules are evaluated in sequential order, from first to last. -The last matching rule decides what action is taken. +For +.Ar block +and +.Ar pass +, the last matching rule decides what action is taken. +For +.Ar match +, rules are evaulated every time they match; the pass/block state of a packet +remains unchanged. If no rule matches the packet, the default action is to pass the packet. .Pp @@ -1301,6 +1311,21 @@ packets that match explicit rules is specify a first filter rule of: .Bd -literal -offset indent block all .Ed +.It Ar match +The packet is matched. +This mechanism is used to provide fine grained filtering without altering the +block/pass state of a packet. +.Ar match +rules differ from +.Ar block +and +.Ar pass +rules in that parameters are set every time a packet matches the rule, not only +on the last matching rule. +For the following parameters, this means that the parameter effectively becomes +"sticky" until explicitly overridden: +.Ar queue +. .It Ar pass The packet is passed; state is created unless the |