xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

{pktgen, xfrm} Introduce xfrm_state_lookup_byspi for pktgen

Browse Source 
Introduce xfrm_state_lookup_byspi to find user specified by custom
from "pgset spi xxx". Using this scheme, any flow regardless its
saddr/daddr could be transform by SA specified with configurable
spi.

Signed-off-by: Fan Du <fan.du@windriver.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Fan Du
2014-01-03 11:18:32 +08:00
committed by Steffen Klassert
parent cf93d47ed4
commit c454997e68
3 changed files with 39 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
net/xfrm/xfrm_state.c
View File

@@ -915,6 +915,28 @@ xfrm_stateonly_find(struct net *net, u32 mark,
}
EXPORT_SYMBOL(xfrm_stateonly_find);
struct xfrm_state *xfrm_state_lookup_byspi(struct net *net, __be32 spi,
unsigned short family)
{
struct xfrm_state *x;
struct xfrm_state_walk *w;
spin_lock_bh(&net->xfrm.xfrm_state_lock);
list_for_each_entry(w, &net->xfrm.state_all, all) {
x = container_of(w, struct xfrm_state, km);
if (x->props.family != family ||
x->id.spi != spi)
continue;
spin_unlock_bh(&net->xfrm.xfrm_state_lock);
xfrm_state_hold(x);
return x;
}
spin_unlock_bh(&net->xfrm.xfrm_state_lock);
return NULL;
}
EXPORT_SYMBOL(xfrm_state_lookup_byspi);
static void __xfrm_state_insert(struct xfrm_state *x)
{
struct net *net = xs_net(x);