xfrm: SA lookups with mark

Allow mark to be added to the SA lookup

Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 9f85303..17d5b96 100644 (file)
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -682,6 +682,8 @@ static struct xfrm_state *__xfrm_state_lookup(struct net *net, u32 mark, xfrm_ad
                    xfrm_addr_cmp(&x->id.daddr, daddr, family))
                        continue;
 
+               if ((mark & x->mark.m) != x->mark.v)
+                       continue;
                xfrm_state_hold(x);
                return x;
        }
@@ -702,6 +704,8 @@ static struct xfrm_state *__xfrm_state_lookup_byaddr(struct net *net, u32 mark,
                    xfrm_addr_cmp(&x->props.saddr, saddr, family))
                        continue;
 
+               if ((mark & x->mark.m) != x->mark.v)
+                       continue;
                xfrm_state_hold(x);
                return x;
        }
@@ -794,6 +798,7 @@ xfrm_state_find(xfrm_address_t *daddr, xfrm_address_t *saddr,
        hlist_for_each_entry(x, entry, net->xfrm.state_bydst+h, bydst) {
                if (x->props.family == family &&
                    x->props.reqid == tmpl->reqid &&
+                   (mark & x->mark.m) == x->mark.v &&
                    !(x->props.flags & XFRM_STATE_WILDRECV) &&
                    xfrm_state_addr_check(x, daddr, saddr, family) &&
                    tmpl->mode == x->props.mode &&
@@ -809,6 +814,7 @@ xfrm_state_find(xfrm_address_t *daddr, xfrm_address_t *saddr,
        hlist_for_each_entry(x, entry, net->xfrm.state_bydst+h_wildcard, bydst) {
                if (x->props.family == family &&
                    x->props.reqid == tmpl->reqid &&
+                   (mark & x->mark.m) == x->mark.v &&
                    !(x->props.flags & XFRM_STATE_WILDRECV) &&
                    xfrm_state_addr_check(x, daddr, saddr, family) &&
                    tmpl->mode == x->props.mode &&
@@ -892,6 +898,7 @@ xfrm_stateonly_find(struct net *net, u32 mark,
        hlist_for_each_entry(x, entry, net->xfrm.state_bydst+h, bydst) {
                if (x->props.family == family &&
                    x->props.reqid == reqid &&
+                   (mark & x->mark.m) == x->mark.v &&
                    !(x->props.flags & XFRM_STATE_WILDRECV) &&
                    xfrm_state_addr_check(x, daddr, saddr, family) &&
                    mode == x->props.mode &&
@@ -954,11 +961,13 @@ static void __xfrm_state_bump_genids(struct xfrm_state *xnew)
        struct xfrm_state *x;
        struct hlist_node *entry;
        unsigned int h;
+       u32 mark = xnew->mark.v & xnew->mark.m;
 
        h = xfrm_dst_hash(net, &xnew->id.daddr, &xnew->props.saddr, reqid, family);
        hlist_for_each_entry(x, entry, net->xfrm.state_bydst+h, bydst) {
                if (x->props.family     == family &&
                    x->props.reqid      == reqid &&
+                   (mark & x->mark.m) == x->mark.v &&
                    !xfrm_addr_cmp(&x->id.daddr, &xnew->id.daddr, family) &&
                    !xfrm_addr_cmp(&x->props.saddr, &xnew->props.saddr, family))
                        x->genid = xfrm_state_genid;
@@ -980,6 +989,7 @@ static struct xfrm_state *__find_acq_core(struct net *net, struct xfrm_mark *m,
        unsigned int h = xfrm_dst_hash(net, daddr, saddr, reqid, family);
        struct hlist_node *entry;
        struct xfrm_state *x;
+       u32 mark = m->v & m->m;
 
        hlist_for_each_entry(x, entry, net->xfrm.state_bydst+h, bydst) {
                if (x->props.reqid  != reqid ||
@@ -988,6 +998,7 @@ static struct xfrm_state *__find_acq_core(struct net *net, struct xfrm_mark *m,
                    x->km.state     != XFRM_STATE_ACQ ||
                    x->id.spi       != 0 ||
                    x->id.proto     != proto ||
+                   (mark & x->mark.m) != x->mark.v ||
                    xfrm_addr_cmp(&x->id.daddr, daddr, family) ||
                    xfrm_addr_cmp(&x->props.saddr, saddr, family))
                        continue;
@@ -1442,6 +1453,7 @@ static struct xfrm_state *__xfrm_find_acq_byseq(struct net *net, u32 mark, u32 s
 
                hlist_for_each_entry(x, entry, net->xfrm.state_bydst+i, bydst) {
                        if (x->km.seq == seq &&
+                           (mark & x->mark.m) == x->mark.v &&
                            x->km.state == XFRM_STATE_ACQ) {
                                xfrm_state_hold(x);
                                return x;