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Diffstat (limited to 'net/sched/act_bpf.c')
-rw-r--r--net/sched/act_bpf.c26
1 files changed, 14 insertions, 12 deletions
diff --git a/net/sched/act_bpf.c b/net/sched/act_bpf.c
index ef74bffa6101..bfa870731e74 100644
--- a/net/sched/act_bpf.c
+++ b/net/sched/act_bpf.c
@@ -34,11 +34,12 @@ struct tcf_bpf_cfg {
34}; 34};
35 35
36static int bpf_net_id; 36static int bpf_net_id;
37static struct tc_action_ops act_bpf_ops;
37 38
38static int tcf_bpf(struct sk_buff *skb, const struct tc_action *act, 39static int tcf_bpf(struct sk_buff *skb, const struct tc_action *act,
39 struct tcf_result *res) 40 struct tcf_result *res)
40{ 41{
41 struct tcf_bpf *prog = act->priv; 42 struct tcf_bpf *prog = to_bpf(act);
42 struct bpf_prog *filter; 43 struct bpf_prog *filter;
43 int action, filter_res; 44 int action, filter_res;
44 bool at_ingress = G_TC_AT(skb->tc_verd) & AT_INGRESS; 45 bool at_ingress = G_TC_AT(skb->tc_verd) & AT_INGRESS;
@@ -134,7 +135,7 @@ static int tcf_bpf_dump(struct sk_buff *skb, struct tc_action *act,
134 int bind, int ref) 135 int bind, int ref)
135{ 136{
136 unsigned char *tp = skb_tail_pointer(skb); 137 unsigned char *tp = skb_tail_pointer(skb);
137 struct tcf_bpf *prog = act->priv; 138 struct tcf_bpf *prog = to_bpf(act);
138 struct tc_act_bpf opt = { 139 struct tc_act_bpf opt = {
139 .index = prog->tcf_index, 140 .index = prog->tcf_index,
140 .refcnt = prog->tcf_refcnt - ref, 141 .refcnt = prog->tcf_refcnt - ref,
@@ -270,7 +271,7 @@ static void tcf_bpf_prog_fill_cfg(const struct tcf_bpf *prog,
270} 271}
271 272
272static int tcf_bpf_init(struct net *net, struct nlattr *nla, 273static int tcf_bpf_init(struct net *net, struct nlattr *nla,
273 struct nlattr *est, struct tc_action *act, 274 struct nlattr *est, struct tc_action **act,
274 int replace, int bind) 275 int replace, int bind)
275{ 276{
276 struct tc_action_net *tn = net_generic(net, bpf_net_id); 277 struct tc_action_net *tn = net_generic(net, bpf_net_id);
@@ -295,7 +296,7 @@ static int tcf_bpf_init(struct net *net, struct nlattr *nla,
295 296
296 if (!tcf_hash_check(tn, parm->index, act, bind)) { 297 if (!tcf_hash_check(tn, parm->index, act, bind)) {
297 ret = tcf_hash_create(tn, parm->index, est, act, 298 ret = tcf_hash_create(tn, parm->index, est, act,
298 sizeof(*prog), bind, true); 299 &act_bpf_ops, bind, true);
299 if (ret < 0) 300 if (ret < 0)
300 return ret; 301 return ret;
301 302
@@ -305,7 +306,7 @@ static int tcf_bpf_init(struct net *net, struct nlattr *nla,
305 if (bind) 306 if (bind)
306 return 0; 307 return 0;
307 308
308 tcf_hash_release(act, bind); 309 tcf_hash_release(*act, bind);
309 if (!replace) 310 if (!replace)
310 return -EEXIST; 311 return -EEXIST;
311 } 312 }
@@ -325,7 +326,7 @@ static int tcf_bpf_init(struct net *net, struct nlattr *nla,
325 if (ret < 0) 326 if (ret < 0)
326 goto out; 327 goto out;
327 328
328 prog = to_bpf(act); 329 prog = to_bpf(*act);
329 ASSERT_RTNL(); 330 ASSERT_RTNL();
330 331
331 if (res != ACT_P_CREATED) 332 if (res != ACT_P_CREATED)
@@ -343,7 +344,7 @@ static int tcf_bpf_init(struct net *net, struct nlattr *nla,
343 rcu_assign_pointer(prog->filter, cfg.filter); 344 rcu_assign_pointer(prog->filter, cfg.filter);
344 345
345 if (res == ACT_P_CREATED) { 346 if (res == ACT_P_CREATED) {
346 tcf_hash_insert(tn, act); 347 tcf_hash_insert(tn, *act);
347 } else { 348 } else {
348 /* make sure the program being replaced is no longer executing */ 349 /* make sure the program being replaced is no longer executing */
349 synchronize_rcu(); 350 synchronize_rcu();
@@ -353,7 +354,7 @@ static int tcf_bpf_init(struct net *net, struct nlattr *nla,
353 return res; 354 return res;
354out: 355out:
355 if (res == ACT_P_CREATED) 356 if (res == ACT_P_CREATED)
356 tcf_hash_cleanup(act, est); 357 tcf_hash_cleanup(*act, est);
357 358
358 return ret; 359 return ret;
359} 360}
@@ -362,20 +363,20 @@ static void tcf_bpf_cleanup(struct tc_action *act, int bind)
362{ 363{
363 struct tcf_bpf_cfg tmp; 364 struct tcf_bpf_cfg tmp;
364 365
365 tcf_bpf_prog_fill_cfg(act->priv, &tmp); 366 tcf_bpf_prog_fill_cfg(to_bpf(act), &tmp);
366 tcf_bpf_cfg_cleanup(&tmp); 367 tcf_bpf_cfg_cleanup(&tmp);
367} 368}
368 369
369static int tcf_bpf_walker(struct net *net, struct sk_buff *skb, 370static int tcf_bpf_walker(struct net *net, struct sk_buff *skb,
370 struct netlink_callback *cb, int type, 371 struct netlink_callback *cb, int type,
371 struct tc_action *a) 372 const struct tc_action_ops *ops)
372{ 373{
373 struct tc_action_net *tn = net_generic(net, bpf_net_id); 374 struct tc_action_net *tn = net_generic(net, bpf_net_id);
374 375
375 return tcf_generic_walker(tn, skb, cb, type, a); 376 return tcf_generic_walker(tn, skb, cb, type, ops);
376} 377}
377 378
378static int tcf_bpf_search(struct net *net, struct tc_action *a, u32 index) 379static int tcf_bpf_search(struct net *net, struct tc_action **a, u32 index)
379{ 380{
380 struct tc_action_net *tn = net_generic(net, bpf_net_id); 381 struct tc_action_net *tn = net_generic(net, bpf_net_id);
381 382
@@ -392,6 +393,7 @@ static struct tc_action_ops act_bpf_ops __read_mostly = {
392 .init = tcf_bpf_init, 393 .init = tcf_bpf_init,
393 .walk = tcf_bpf_walker, 394 .walk = tcf_bpf_walker,
394 .lookup = tcf_bpf_search, 395 .lookup = tcf_bpf_search,
396 .size = sizeof(struct tcf_bpf),
395}; 397};
396 398
397static __net_init int bpf_init_net(struct net *net) 399static __net_init int bpf_init_net(struct net *net)