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vici: Make setting mark on inbound SA configurable

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This commit is contained in:
Tobias Brunner
2017-11-02 09:59:38 +01:00
parent ea43f8ffe5
commit 2d244f178f
2 changed files with 42 additions and 18 deletions
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src/swanctl/swanctl.opt
+23 -11
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@@ -867,25 +867,37 @@ connections.<conn>.children.<child>.interface =
connections.<conn>.children.<child>.mark_in = 0/0x00000000
Netfilter mark and mask for input traffic.
Netfilter mark and mask for input traffic. On Linux Netfilter may require
marks on each packet to match an SA having that option set. This allows
Netfilter rules to select specific tunnels for incoming traffic. The
special value _%unique_ sets a unique mark on each CHILD_SA instance,
beyond that the value _%unique-dir_ assigns a different unique mark for each
Netfilter mark and mask for input traffic. On Linux, Netfilter may require
marks on each packet to match an SA/policy having that option set. This
allows installing duplicate policies and enables Netfilter rules to select
specific SAs/policies for incoming traffic. Note that inbound marks are
only set on policies, by default, unless *mark_in_sa* is enabled. The
special value _%unique_ sets a unique mark on each CHILD_SA instance, beyond
that the value _%unique-dir_ assigns a different unique mark for each
CHILD_SA direction (in/out).
An additional mask may be appended to the mark, separated by _/_. The
default mask if omitted is 0xffffffff.
connections.<conn>.children.<child>.mark_in_sa = no
Whether to set *mark_in* on the inbound SA.
Whether to set *mark_in* on the inbound SA. By default, the inbound mark is
only set on the inbound policy. The tuple destination address, protocol and
SPI is unique and the mark is not required to find the correct SA, allowing
to mark traffic after decryption instead (where more specific selectors may
be used) to match different policies. Marking packets before decryption is
still possible, even if no mark is set on the SA.
connections.<conn>.children.<child>.mark_out = 0/0x00000000
Netfilter mark and mask for output traffic.
Netfilter mark and mask for output traffic. On Linux Netfilter may require
marks on each packet to match a policy having that option set. This allows
Netfilter rules to select specific tunnels for outgoing traffic. The
special value _%unique_ sets a unique mark on each CHILD_SA instance,
beyond that the value _%unique-dir_ assigns a different unique mark for each
CHILD_SA direction (in/out).
Netfilter mark and mask for output traffic. On Linux, Netfilter may require
marks on each packet to match a policy/SA having that option set. This
allows installing duplicate policies and enables Netfilter rules to select
specific policies/SAs for outgoing traffic. The special value _%unique_ sets
a unique mark on each CHILD_SA instance, beyond that the value _%unique-dir_
assigns a different unique mark for each CHILD_SA direction (in/out).
An additional mask may be appended to the mark, separated by _/_. The
default mask if omitted is 0xffffffff.