diff options
| -rw-r--r-- | include/net/xfrm.h | 2 | ||||
| -rw-r--r-- | net/core/pktgen.c | 22 | ||||
| -rw-r--r-- | net/xfrm/xfrm_state.c | 22 |
3 files changed, 39 insertions, 7 deletions
diff --git a/include/net/xfrm.h b/include/net/xfrm.h index b7635ef4d436..cd7c46ff6f1f 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -1421,6 +1421,8 @@ struct xfrm_state *xfrm_stateonly_find(struct net *net, u32 mark, xfrm_address_t *saddr, unsigned short family, u8 mode, u8 proto, u32 reqid); +struct xfrm_state *xfrm_state_lookup_byspi(struct net *net, __be32 spi, + unsigned short family); int xfrm_state_check_expire(struct xfrm_state *x); void xfrm_state_insert(struct xfrm_state *x); int xfrm_state_add(struct xfrm_state *x); diff --git a/net/core/pktgen.c b/net/core/pktgen.c index 628f7c572c6e..b553c36ea0ca 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -2247,13 +2247,21 @@ static void get_ipsec_sa(struct pktgen_dev *pkt_dev, int flow) struct xfrm_state *x = pkt_dev->flows[flow].x; struct pktgen_net *pn = net_generic(dev_net(pkt_dev->odev), pg_net_id); if (!x) { - /*slow path: we dont already have xfrm_state*/ - x = xfrm_stateonly_find(pn->net, DUMMY_MARK, - (xfrm_address_t *)&pkt_dev->cur_daddr, - (xfrm_address_t *)&pkt_dev->cur_saddr, - AF_INET, - pkt_dev->ipsmode, - pkt_dev->ipsproto, 0); + + if (pkt_dev->spi) { + /* We need as quick as possible to find the right SA + * Searching with minimum criteria to archieve this. + */ + x = xfrm_state_lookup_byspi(pn->net, htonl(pkt_dev->spi), AF_INET); + } else { + /* slow path: we dont already have xfrm_state */ + x = xfrm_stateonly_find(pn->net, DUMMY_MARK, + (xfrm_address_t *)&pkt_dev->cur_daddr, + (xfrm_address_t *)&pkt_dev->cur_saddr, + AF_INET, + pkt_dev->ipsmode, + pkt_dev->ipsproto, 0); + } if (x) { pkt_dev->flows[flow].x = x; set_pkt_overhead(pkt_dev); diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index 300744094ad8..62181486ead8 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -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); |