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kernel-netlink: Implement passthrough type routes and use them on Linux

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Enables us to ignore any future kernel features for routes unless
we actually need to consider them for the source IP routes.

Also enables us to actually really skip IPsec processing for those networks
(because even the routes don't touch those packets). It's more what
users expect.

Co-authored-by: Tobias Brunner <[email protected]>
This commit is contained in:
Noel Kuntze
2020-03-10 10:20:58 +01:00
committed by Tobias Brunner
co-authored by Tobias Brunner
parent 4958acc0c2
commit 09f4bccfea
11 changed files with 124 additions and 80 deletions
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src/libcharon/plugins/kernel_iph/kernel_iph_net.c
+2 -2
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@@ -715,14 +715,14 @@ static status_t manage_route(private_kernel_iph_net_t *this, bool add,
METHOD(kernel_net_t, add_route, status_t,
private_kernel_iph_net_t *this, chunk_t dst, uint8_t prefixlen,
host_t *gateway, host_t *src, char *name)
host_t *gateway, host_t *src, char *name, bool pass)
{
return manage_route(this, TRUE, dst, prefixlen, gateway, name);
}
METHOD(kernel_net_t, del_route, status_t,
private_kernel_iph_net_t *this, chunk_t dst, uint8_t prefixlen,
host_t *gateway, host_t *src, char *name)
host_t *gateway, host_t *src, char *name, bool pass)
{
return manage_route(this, FALSE, dst, prefixlen, gateway, name);
}