2 * include/net/act_generic.h
5 #ifndef _NET_ACT_GENERIC_H
6 #define _NET_ACT_GENERIC_H
7 static inline int tcf_defact_release(struct tcf_defact *p, int bind)
15 if (p->bindcnt <= 0 && p->refcnt <= 0) {
25 alloc_defdata(struct tcf_defact *p, u32 datalen, void *defdata)
27 p->defdata = kmalloc(datalen, GFP_KERNEL);
28 if (p->defdata == NULL)
31 memcpy(p->defdata, defdata, datalen);
36 realloc_defdata(struct tcf_defact *p, u32 datalen, void *defdata)
38 /* safer to be just brute force for now */
40 return alloc_defdata(p, datalen, defdata);
44 tcf_defact_init(struct rtattr *rta, struct rtattr *est,
45 struct tc_action *a, int ovr, int bind)
47 struct rtattr *tb[TCA_DEF_MAX];
48 struct tc_defact *parm;
54 if (rta == NULL || rtattr_parse_nested(tb, TCA_DEF_MAX, rta) < 0)
57 if (tb[TCA_DEF_PARMS - 1] == NULL ||
58 RTA_PAYLOAD(tb[TCA_DEF_PARMS - 1]) < sizeof(*parm))
61 parm = RTA_DATA(tb[TCA_DEF_PARMS - 1]);
62 defdata = RTA_DATA(tb[TCA_DEF_DATA - 1]);
66 datalen = RTA_PAYLOAD(tb[TCA_DEF_DATA - 1]);
70 p = tcf_hash_check(parm->index, a, ovr, bind);
72 p = tcf_hash_create(parm->index, est, a, sizeof(*p), ovr, bind);
76 ret = alloc_defdata(p, datalen, defdata);
84 tcf_defact_release(p, bind);
87 realloc_defdata(p, datalen, defdata);
90 spin_lock_bh(&p->lock);
91 p->action = parm->action;
92 spin_unlock_bh(&p->lock);
93 if (ret == ACT_P_CREATED)
98 static inline int tcf_defact_cleanup(struct tc_action *a, int bind)
100 struct tcf_defact *p = PRIV(a, defact);
103 return tcf_defact_release(p, bind);
108 tcf_defact_dump(struct sk_buff *skb, struct tc_action *a, int bind, int ref)
110 unsigned char *b = skb->tail;
111 struct tc_defact opt;
112 struct tcf_defact *p = PRIV(a, defact);
115 opt.index = p->index;
116 opt.refcnt = p->refcnt - ref;
117 opt.bindcnt = p->bindcnt - bind;
118 opt.action = p->action;
119 RTA_PUT(skb, TCA_DEF_PARMS, sizeof(opt), &opt);
120 RTA_PUT(skb, TCA_DEF_DATA, p->datalen, p->defdata);
121 t.install = jiffies_to_clock_t(jiffies - p->tm.install);
122 t.lastuse = jiffies_to_clock_t(jiffies - p->tm.lastuse);
123 t.expires = jiffies_to_clock_t(p->tm.expires);
124 RTA_PUT(skb, TCA_DEF_TM, sizeof(t), &t);
128 skb_trim(skb, b - skb->data);
132 #define tca_use_default_ops \
133 .dump = tcf_defact_dump, \
134 .cleanup = tcf_defact_cleanup, \
135 .init = tcf_defact_init, \
136 .walk = tcf_generic_walker, \
138 #define tca_use_default_defines(name) \
139 static u32 idx_gen; \
140 static struct tcf_defact *tcf_##name_ht[MY_TAB_SIZE]; \
141 static DEFINE_RWLOCK(##name_lock);
142 #endif /* _NET_ACT_GENERIC_H */