MODULE_LICENSE("GPL");
MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
-MODULE_DESCRIPTION("[ip,ip6,arp]_tables backend module");
+MODULE_DESCRIPTION("{ip,ip6,arp,eb}_tables backend module");
#define SMP_ALIGN(x) (((x) + SMP_CACHE_BYTES-1) & ~(SMP_CACHE_BYTES-1))
#define duprintf(format, args...)
#endif
-static const char *const xt_prefix[NPROTO] = {
- [AF_INET] = "ip",
- [AF_INET6] = "ip6",
- [NF_ARP] = "arp",
+static const char *const xt_prefix[NFPROTO_NUMPROTO] = {
+ [NFPROTO_UNSPEC] = "x",
+ [NFPROTO_IPV4] = "ip",
+ [NFPROTO_ARP] = "arp",
+ [NFPROTO_BRIDGE] = "eb",
+ [NFPROTO_IPV6] = "ip6",
};
/* Registration hooks for targets. */
}
}
mutex_unlock(&xt[af].mutex);
+
+ if (af != NFPROTO_UNSPEC)
+ /* Try searching again in the family-independent list */
+ return xt_find_match(NFPROTO_UNSPEC, name, revision);
+
return ERR_PTR(err);
}
EXPORT_SYMBOL(xt_find_match);
}
}
mutex_unlock(&xt[af].mutex);
+
+ if (af != NFPROTO_UNSPEC)
+ /* Try searching again in the family-independent list */
+ return xt_find_target(NFPROTO_UNSPEC, name, revision);
+
return ERR_PTR(err);
}
EXPORT_SYMBOL(xt_find_target);
}
EXPORT_SYMBOL_GPL(xt_find_revision);
-int xt_check_match(const struct xt_match *match, unsigned short family,
- unsigned int size, const char *table, unsigned int hook_mask,
- unsigned short proto, int inv_proto)
+int xt_check_match(struct xt_mtchk_param *par,
+ unsigned int size, u_int8_t proto, bool inv_proto)
{
- if (XT_ALIGN(match->matchsize) != size) {
+ if (XT_ALIGN(par->match->matchsize) != size &&
+ par->match->matchsize != -1) {
+ /*
+ * ebt_among is exempt from centralized matchsize checking
+ * because it uses a dynamic-size data set.
+ */
printk("%s_tables: %s match: invalid size %Zu != %u\n",
- xt_prefix[family], match->name,
- XT_ALIGN(match->matchsize), size);
+ xt_prefix[par->family], par->match->name,
+ XT_ALIGN(par->match->matchsize), size);
return -EINVAL;
}
- if (match->table && strcmp(match->table, table)) {
+ if (par->match->table != NULL &&
+ strcmp(par->match->table, par->table) != 0) {
printk("%s_tables: %s match: only valid in %s table, not %s\n",
- xt_prefix[family], match->name, match->table, table);
+ xt_prefix[par->family], par->match->name,
+ par->match->table, par->table);
return -EINVAL;
}
- if (match->hooks && (hook_mask & ~match->hooks) != 0) {
- printk("%s_tables: %s match: bad hook_mask %u/%u\n",
- xt_prefix[family], match->name, hook_mask, match->hooks);
+ if (par->match->hooks && (par->hook_mask & ~par->match->hooks) != 0) {
+ printk("%s_tables: %s match: bad hook_mask %#x/%#x\n",
+ xt_prefix[par->family], par->match->name,
+ par->hook_mask, par->match->hooks);
return -EINVAL;
}
- if (match->proto && (match->proto != proto || inv_proto)) {
+ if (par->match->proto && (par->match->proto != proto || inv_proto)) {
printk("%s_tables: %s match: only valid for protocol %u\n",
- xt_prefix[family], match->name, match->proto);
+ xt_prefix[par->family], par->match->name,
+ par->match->proto);
return -EINVAL;
}
+ if (par->match->checkentry != NULL && !par->match->checkentry(par))
+ return -EINVAL;
return 0;
}
EXPORT_SYMBOL_GPL(xt_check_match);
EXPORT_SYMBOL_GPL(xt_compat_match_to_user);
#endif /* CONFIG_COMPAT */
-int xt_check_target(const struct xt_target *target, unsigned short family,
- unsigned int size, const char *table, unsigned int hook_mask,
- unsigned short proto, int inv_proto)
+int xt_check_target(struct xt_tgchk_param *par,
+ unsigned int size, u_int8_t proto, bool inv_proto)
{
- if (XT_ALIGN(target->targetsize) != size) {
+ if (XT_ALIGN(par->target->targetsize) != size) {
printk("%s_tables: %s target: invalid size %Zu != %u\n",
- xt_prefix[family], target->name,
- XT_ALIGN(target->targetsize), size);
+ xt_prefix[par->family], par->target->name,
+ XT_ALIGN(par->target->targetsize), size);
return -EINVAL;
}
- if (target->table && strcmp(target->table, table)) {
+ if (par->target->table != NULL &&
+ strcmp(par->target->table, par->table) != 0) {
printk("%s_tables: %s target: only valid in %s table, not %s\n",
- xt_prefix[family], target->name, target->table, table);
+ xt_prefix[par->family], par->target->name,
+ par->target->table, par->table);
return -EINVAL;
}
- if (target->hooks && (hook_mask & ~target->hooks) != 0) {
- printk("%s_tables: %s target: bad hook_mask %u/%u\n",
- xt_prefix[family], target->name, hook_mask,
- target->hooks);
+ if (par->target->hooks && (par->hook_mask & ~par->target->hooks) != 0) {
+ printk("%s_tables: %s target: bad hook_mask %#x/%#x\n",
+ xt_prefix[par->family], par->target->name,
+ par->hook_mask, par->target->hooks);
return -EINVAL;
}
- if (target->proto && (target->proto != proto || inv_proto)) {
+ if (par->target->proto && (par->target->proto != proto || inv_proto)) {
printk("%s_tables: %s target: only valid for protocol %u\n",
- xt_prefix[family], target->name, target->proto);
+ xt_prefix[par->family], par->target->name,
+ par->target->proto);
return -EINVAL;
}
+ if (par->target->checkentry != NULL && !par->target->checkentry(par))
+ return -EINVAL;
return 0;
}
EXPORT_SYMBOL_GPL(xt_check_target);
struct proc_dir_entry *proc;
#endif
- if (af >= NPROTO)
+ if (af >= ARRAY_SIZE(xt_prefix))
return -EINVAL;
{
int i;
- for (i = 0; i < NPROTO; i++)
+ for (i = 0; i < NFPROTO_NUMPROTO; i++)
INIT_LIST_HEAD(&net->xt.tables[i]);
return 0;
}
{
int i, rv;
- xt = kmalloc(sizeof(struct xt_af) * NPROTO, GFP_KERNEL);
+ xt = kmalloc(sizeof(struct xt_af) * NFPROTO_NUMPROTO, GFP_KERNEL);
if (!xt)
return -ENOMEM;
- for (i = 0; i < NPROTO; i++) {
+ for (i = 0; i < NFPROTO_NUMPROTO; i++) {
mutex_init(&xt[i].mutex);
#ifdef CONFIG_COMPAT
mutex_init(&xt[i].compat_mutex);