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* Copy ta structures to stable storage to ease future extension.

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* Remove algo .lookup field since table lookup function is set by algo code.
This commit is contained in:
Alexander V. Chernikov 2014-07-29 21:38:06 +00:00
parent 74b941f042
commit 0b565ac0e6
3 changed files with 47 additions and 15 deletions
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36
sys/netpfil/ipfw/ip_fw_table.c
View File

@ -1600,17 +1600,45 @@ find_table_algo(struct tables_config *tcfg, struct tid_info *ti, char *name)
return (NULL);
}
void
ipfw_add_table_algo(struct ip_fw_chain *ch, struct table_algo *ta)
int
ipfw_add_table_algo(struct ip_fw_chain *ch, struct table_algo *ta, size_t size,
int *idx)
{
struct tables_config *tcfg;
struct table_algo *ta_new;
if (size > sizeof(struct table_algo))
return (EINVAL);
ta_new = malloc(sizeof(struct table_algo), M_IPFW, M_WAITOK | M_ZERO);
memcpy(ta_new, ta, size);
tcfg = CHAIN_TO_TCFG(ch);
KASSERT(tcfg->algo_count < 255, ("Increase algo array size"));
tcfg->algo[++tcfg->algo_count] = ta;
ta->idx = tcfg->algo_count;
tcfg->algo[++tcfg->algo_count] = ta_new;
ta_new->idx = tcfg->algo_count;
*idx = ta_new->idx;
return (0);
}
void
ipfw_del_table_algo(struct ip_fw_chain *ch, int idx)
{
struct tables_config *tcfg;
struct table_algo *ta;
tcfg = CHAIN_TO_TCFG(ch);
KASSERT(idx <= tcfg->algo_count, ("algo idx %d out of rage 1..%d", idx,
tcfg->algo_count));
ta = tcfg->algo[idx];
KASSERT(ta != NULL, ("algo idx %d is NULL", idx));
free(ta, M_IPFW);
}

5
sys/netpfil/ipfw/ip_fw_table.h
View File

@ -100,7 +100,6 @@ struct table_algo {
int idx;
ta_init *init;
ta_destroy *destroy;
table_lookup_t *lookup;
ta_prepare_add *prepare_add;
ta_prepare_del *prepare_del;
ta_add *add;
@ -117,7 +116,9 @@ struct table_algo {
ta_change_ti *change_ti;
};
void ipfw_add_table_algo(struct ip_fw_chain *ch, struct table_algo *ta);
int ipfw_add_table_algo(struct ip_fw_chain *ch, struct table_algo *ta,
size_t size, int *idx);
void ipfw_del_table_algo(struct ip_fw_chain *ch, int idx);
extern struct table_algo cidr_radix, iface_idx;
void ipfw_table_algo_init(struct ip_fw_chain *chain);

21
sys/netpfil/ipfw/ip_fw_table_algo.c
View File

@ -516,7 +516,6 @@ ta_flush_cidr_entry(struct ip_fw_chain *ch, struct tentry_info *tei,
struct table_algo cidr_radix = {
.name = "cidr:radix",
.lookup = ta_lookup_radix,
.init = ta_init_radix,
.destroy = ta_destroy_radix,
.prepare_add = ta_prepare_add_cidr,
@ -1195,7 +1194,6 @@ ta_flush_chash_entry(struct ip_fw_chain *ch, struct tentry_info *tei,
struct table_algo cidr_hash = {
.name = "cidr:hash",
.lookup = ta_lookup_chash_slow,
.init = ta_init_chash,
.destroy = ta_destroy_chash,
.prepare_add = ta_prepare_add_chash,
@ -1848,7 +1846,6 @@ ta_foreach_ifidx(void *ta_state, struct table_info *ti, ta_foreach_f *f,
struct table_algo iface_idx = {
.name = "iface:array",
.lookup = ta_lookup_ifidx,
.init = ta_init_ifidx,
.destroy = ta_destroy_ifidx,
.prepare_add = ta_prepare_add_ifidx,
@ -1867,20 +1864,26 @@ struct table_algo iface_idx = {
};
void
ipfw_table_algo_init(struct ip_fw_chain *chain)
ipfw_table_algo_init(struct ip_fw_chain *ch)
{
size_t sz;
/*
* Register all algorithms presented here.
*/
ipfw_add_table_algo(chain, &cidr_radix);
ipfw_add_table_algo(chain, &cidr_hash);
ipfw_add_table_algo(chain, &iface_idx);
sz = sizeof(struct table_algo);
ipfw_add_table_algo(ch, &cidr_radix, sz, &cidr_radix.idx);
ipfw_add_table_algo(ch, &cidr_hash, sz, &cidr_hash.idx);
ipfw_add_table_algo(ch, &iface_idx, sz, &iface_idx.idx);
}
void
ipfw_table_algo_destroy(struct ip_fw_chain *chain)
ipfw_table_algo_destroy(struct ip_fw_chain *ch)
{
/* Do nothing */
ipfw_del_table_algo(ch, cidr_radix.idx);
ipfw_del_table_algo(ch, cidr_hash.idx);
ipfw_del_table_algo(ch, iface_idx.idx);
}