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| author | Steffen Klassert <steffen.klassert@secunet.com> | 2021-07-18 10:11:06 +0300 |
|---|---|---|
| committer | Steffen Klassert <steffen.klassert@secunet.com> | 2021-07-21 10:49:19 +0300 |
| commit | 2d151d39073aff498358543801fca0f670fea981 (patch) | |
| tree | 76abb9648c571bb6fc5ccb5d7c25f000e22c1273 /include/net/netns | |
| parent | f8fdadef92b7a39e9a9a83bc2df68731ac6c298b (diff) | |
| download | linux-2d151d39073aff498358543801fca0f670fea981.tar.xz | |
xfrm: Add possibility to set the default to block if we have no policy
As the default we assume the traffic to pass, if we have no
matching IPsec policy. With this patch, we have a possibility to
change this default from allow to block. It can be configured
via netlink. Each direction (input/output/forward) can be
configured separately. With the default to block configuered,
we need allow policies for all packet flows we accept.
We do not use default policy lookup for the loopback device.
v1->v2
- fix compiling when XFRM is disabled
- Reported-by: kernel test robot <lkp@intel.com>
Co-developed-by: Christian Langrock <christian.langrock@secunet.com>
Signed-off-by: Christian Langrock <christian.langrock@secunet.com>
Co-developed-by: Antony Antony <antony.antony@secunet.com>
Signed-off-by: Antony Antony <antony.antony@secunet.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'include/net/netns')
| -rw-r--r-- | include/net/netns/xfrm.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/net/netns/xfrm.h b/include/net/netns/xfrm.h index e946366e8ba5..88c647302977 100644 --- a/include/net/netns/xfrm.h +++ b/include/net/netns/xfrm.h @@ -65,6 +65,13 @@ struct netns_xfrm { u32 sysctl_aevent_rseqth; int sysctl_larval_drop; u32 sysctl_acq_expires; + + u8 policy_default; +#define XFRM_POL_DEFAULT_IN 1 +#define XFRM_POL_DEFAULT_OUT 2 +#define XFRM_POL_DEFAULT_FWD 4 +#define XFRM_POL_DEFAULT_MASK 7 + #ifdef CONFIG_SYSCTL struct ctl_table_header *sysctl_hdr; #endif |