static const struct nla_policy nft_set_desc_policy[NFTA_SET_DESC_MAX + 1] = {
[NFTA_SET_DESC_SIZE] = { .type = NLA_U32 },
+ [NFTA_SET_DESC_CONCAT] = { .type = NLA_NESTED },
};
static int nft_ctx_init_from_setattr(struct nft_ctx *ctx, struct net *net,
return cpu_to_be64(jiffies64_to_msecs(input));
}
+static int nf_tables_fill_set_concat(struct sk_buff *skb,
+ const struct nft_set *set)
+{
+ struct nlattr *concat, *field;
+ int i;
+
+ concat = nla_nest_start_noflag(skb, NFTA_SET_DESC_CONCAT);
+ if (!concat)
+ return -ENOMEM;
+
+ for (i = 0; i < set->field_count; i++) {
+ field = nla_nest_start_noflag(skb, NFTA_LIST_ELEM);
+ if (!field)
+ return -ENOMEM;
+
+ if (nla_put_be32(skb, NFTA_SET_FIELD_LEN,
+ htonl(set->field_len[i])))
+ return -ENOMEM;
+
+ nla_nest_end(skb, field);
+ }
+
+ nla_nest_end(skb, concat);
+
+ return 0;
+}
+
static int nf_tables_fill_set(struct sk_buff *skb, const struct nft_ctx *ctx,
const struct nft_set *set, u16 event, u16 flags)
{
goto nla_put_failure;
desc = nla_nest_start_noflag(skb, NFTA_SET_DESC);
+
if (desc == NULL)
goto nla_put_failure;
if (set->size &&
nla_put_be32(skb, NFTA_SET_DESC_SIZE, htonl(set->size)))
goto nla_put_failure;
+
+ if (set->field_count > 1 &&
+ nf_tables_fill_set_concat(skb, set))
+ goto nla_put_failure;
+
nla_nest_end(skb, desc);
nlmsg_end(skb, nlh);
return err;
}
+static const struct nla_policy nft_concat_policy[NFTA_SET_FIELD_MAX + 1] = {
+ [NFTA_SET_FIELD_LEN] = { .type = NLA_U32 },
+};
+
+static int nft_set_desc_concat_parse(const struct nlattr *attr,
+ struct nft_set_desc *desc)
+{
+ struct nlattr *tb[NFTA_SET_FIELD_MAX + 1];
+ u32 len;
+ int err;
+
+ err = nla_parse_nested_deprecated(tb, NFTA_SET_FIELD_MAX, attr,
+ nft_concat_policy, NULL);
+ if (err < 0)
+ return err;
+
+ if (!tb[NFTA_SET_FIELD_LEN])
+ return -EINVAL;
+
+ len = ntohl(nla_get_be32(tb[NFTA_SET_FIELD_LEN]));
+
+ if (len * BITS_PER_BYTE / 32 > NFT_REG32_COUNT)
+ return -E2BIG;
+
+ desc->field_len[desc->field_count++] = len;
+
+ return 0;
+}
+
+static int nft_set_desc_concat(struct nft_set_desc *desc,
+ const struct nlattr *nla)
+{
+ struct nlattr *attr;
+ int rem, err;
+
+ nla_for_each_nested(attr, nla, rem) {
+ if (nla_type(attr) != NFTA_LIST_ELEM)
+ return -EINVAL;
+
+ err = nft_set_desc_concat_parse(attr, desc);
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+
static int nf_tables_set_desc_parse(struct nft_set_desc *desc,
const struct nlattr *nla)
{
if (da[NFTA_SET_DESC_SIZE] != NULL)
desc->size = ntohl(nla_get_be32(da[NFTA_SET_DESC_SIZE]));
+ if (da[NFTA_SET_DESC_CONCAT])
+ err = nft_set_desc_concat(desc, da[NFTA_SET_DESC_CONCAT]);
- return 0;
+ return err;
}
static int nf_tables_newset(struct net *net, struct sock *nlsk,
unsigned char *udata;
u16 udlen;
int err;
+ int i;
if (nla[NFTA_SET_TABLE] == NULL ||
nla[NFTA_SET_NAME] == NULL ||
set->gc_int = gc_int;
set->handle = nf_tables_alloc_handle(table);
+ set->field_count = desc.field_count;
+ for (i = 0; i < desc.field_count; i++)
+ set->field_len[i] = desc.field_len[i];
+
err = ops->init(set, &desc, nla);
if (err < 0)
goto err3;
.len = sizeof(struct nft_userdata),
.align = __alignof__(struct nft_userdata),
},
+ [NFT_SET_EXT_KEY_END] = {
+ .align = __alignof__(u32),
+ },
};
EXPORT_SYMBOL_GPL(nft_set_ext_types);
[NFTA_SET_ELEM_EXPR] = { .type = NLA_NESTED },
[NFTA_SET_ELEM_OBJREF] = { .type = NLA_STRING,
.len = NFT_OBJ_MAXNAMELEN - 1 },
+ [NFTA_SET_ELEM_KEY_END] = { .type = NLA_NESTED },
};
static const struct nla_policy nft_set_elem_list_policy[NFTA_SET_ELEM_LIST_MAX + 1] = {
NFT_DATA_VALUE, set->klen) < 0)
goto nla_put_failure;
+ if (nft_set_ext_exists(ext, NFT_SET_EXT_KEY_END) &&
+ nft_data_dump(skb, NFTA_SET_ELEM_KEY_END, nft_set_ext_key_end(ext),
+ NFT_DATA_VALUE, set->klen) < 0)
+ goto nla_put_failure;
+
if (nft_set_ext_exists(ext, NFT_SET_EXT_DATA) &&
nft_data_dump(skb, NFTA_SET_ELEM_DATA, nft_set_ext_data(ext),
set->dtype == NFT_DATA_VERDICT ? NFT_DATA_VERDICT : NFT_DATA_VALUE,
return 0;
}
+static int nft_setelem_parse_key(struct nft_ctx *ctx, struct nft_set *set,
+ struct nft_data *key, struct nlattr *attr)
+{
+ struct nft_data_desc desc;
+ int err;
+
+ err = nft_data_init(ctx, key, NFT_DATA_VALUE_MAXLEN, &desc, attr);
+ if (err < 0)
+ return err;
+
+ if (desc.type != NFT_DATA_VALUE || desc.len != set->klen) {
+ nft_data_release(key, desc.type);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
static int nft_get_set_elem(struct nft_ctx *ctx, struct nft_set *set,
const struct nlattr *attr)
{
struct nlattr *nla[NFTA_SET_ELEM_MAX + 1];
- struct nft_data_desc desc;
struct nft_set_elem elem;
struct sk_buff *skb;
uint32_t flags = 0;
if (err < 0)
return err;
- err = nft_data_init(ctx, &elem.key.val, sizeof(elem.key), &desc,
- nla[NFTA_SET_ELEM_KEY]);
+ err = nft_setelem_parse_key(ctx, set, &elem.key.val,
+ nla[NFTA_SET_ELEM_KEY]);
if (err < 0)
return err;
- err = -EINVAL;
- if (desc.type != NFT_DATA_VALUE || desc.len != set->klen) {
- nft_data_release(&elem.key.val, desc.type);
- return err;
+ if (nla[NFTA_SET_ELEM_KEY_END]) {
+ err = nft_setelem_parse_key(ctx, set, &elem.key_end.val,
+ nla[NFTA_SET_ELEM_KEY_END]);
+ if (err < 0)
+ return err;
}
priv = set->ops->get(ctx->net, set, &elem, flags);
void *nft_set_elem_init(const struct nft_set *set,
const struct nft_set_ext_tmpl *tmpl,
- const u32 *key, const u32 *data,
- u64 timeout, u64 expiration, gfp_t gfp)
+ const u32 *key, const u32 *key_end,
+ const u32 *data, u64 timeout, u64 expiration, gfp_t gfp)
{
struct nft_set_ext *ext;
void *elem;
nft_set_ext_init(ext, tmpl);
memcpy(nft_set_ext_key(ext), key, set->klen);
+ if (nft_set_ext_exists(ext, NFT_SET_EXT_KEY_END))
+ memcpy(nft_set_ext_key_end(ext), key_end, set->klen);
if (nft_set_ext_exists(ext, NFT_SET_EXT_DATA))
memcpy(nft_set_ext_data(ext), data, set->dlen);
if (nft_set_ext_exists(ext, NFT_SET_EXT_EXPIRATION)) {
{
struct nlattr *nla[NFTA_SET_ELEM_MAX + 1];
u8 genmask = nft_genmask_next(ctx->net);
- struct nft_data_desc d1, d2;
struct nft_set_ext_tmpl tmpl;
struct nft_set_ext *ext, *ext2;
struct nft_set_elem elem;
struct nft_set_binding *binding;
struct nft_object *obj = NULL;
struct nft_userdata *udata;
+ struct nft_data_desc desc;
struct nft_data data;
enum nft_registers dreg;
struct nft_trans *trans;
return err;
}
- err = nft_data_init(ctx, &elem.key.val, sizeof(elem.key), &d1,
- nla[NFTA_SET_ELEM_KEY]);
+ err = nft_setelem_parse_key(ctx, set, &elem.key.val,
+ nla[NFTA_SET_ELEM_KEY]);
if (err < 0)
- goto err1;
- err = -EINVAL;
- if (d1.type != NFT_DATA_VALUE || d1.len != set->klen)
- goto err2;
+ return err;
+
+ nft_set_ext_add_length(&tmpl, NFT_SET_EXT_KEY, set->klen);
+
+ if (nla[NFTA_SET_ELEM_KEY_END]) {
+ err = nft_setelem_parse_key(ctx, set, &elem.key_end.val,
+ nla[NFTA_SET_ELEM_KEY_END]);
+ if (err < 0)
+ goto err_parse_key;
+
+ nft_set_ext_add_length(&tmpl, NFT_SET_EXT_KEY_END, set->klen);
+ }
- nft_set_ext_add_length(&tmpl, NFT_SET_EXT_KEY, d1.len);
if (timeout > 0) {
nft_set_ext_add(&tmpl, NFT_SET_EXT_EXPIRATION);
if (timeout != set->timeout)
if (nla[NFTA_SET_ELEM_OBJREF] != NULL) {
if (!(set->flags & NFT_SET_OBJECT)) {
err = -EINVAL;
- goto err2;
+ goto err_parse_key_end;
}
obj = nft_obj_lookup(ctx->net, ctx->table,
nla[NFTA_SET_ELEM_OBJREF],
set->objtype, genmask);
if (IS_ERR(obj)) {
err = PTR_ERR(obj);
- goto err2;
+ goto err_parse_key_end;
}
nft_set_ext_add(&tmpl, NFT_SET_EXT_OBJREF);
}
if (nla[NFTA_SET_ELEM_DATA] != NULL) {
- err = nft_data_init(ctx, &data, sizeof(data), &d2,
+ err = nft_data_init(ctx, &data, sizeof(data), &desc,
nla[NFTA_SET_ELEM_DATA]);
if (err < 0)
- goto err2;
+ goto err_parse_key_end;
err = -EINVAL;
- if (set->dtype != NFT_DATA_VERDICT && d2.len != set->dlen)
- goto err3;
+ if (set->dtype != NFT_DATA_VERDICT && desc.len != set->dlen)
+ goto err_parse_data;
dreg = nft_type_to_reg(set->dtype);
list_for_each_entry(binding, &set->bindings, list) {
err = nft_validate_register_store(&bind_ctx, dreg,
&data,
- d2.type, d2.len);
+ desc.type, desc.len);
if (err < 0)
- goto err3;
+ goto err_parse_data;
- if (d2.type == NFT_DATA_VERDICT &&
+ if (desc.type == NFT_DATA_VERDICT &&
(data.verdict.code == NFT_GOTO ||
data.verdict.code == NFT_JUMP))
nft_validate_state_update(ctx->net,
NFT_VALIDATE_NEED);
}
- nft_set_ext_add_length(&tmpl, NFT_SET_EXT_DATA, d2.len);
+ nft_set_ext_add_length(&tmpl, NFT_SET_EXT_DATA, desc.len);
}
/* The full maximum length of userdata can exceed the maximum
}
err = -ENOMEM;
- elem.priv = nft_set_elem_init(set, &tmpl, elem.key.val.data, data.data,
+ elem.priv = nft_set_elem_init(set, &tmpl, elem.key.val.data,
+ elem.key_end.val.data, data.data,
timeout, expiration, GFP_KERNEL);
if (elem.priv == NULL)
- goto err3;
+ goto err_parse_data;
ext = nft_set_elem_ext(set, elem.priv);
if (flags)
trans = nft_trans_elem_alloc(ctx, NFT_MSG_NEWSETELEM, set);
if (trans == NULL)
- goto err4;
+ goto err_trans;
ext->genmask = nft_genmask_cur(ctx->net) | NFT_SET_ELEM_BUSY_MASK;
err = set->ops->insert(ctx->net, set, &elem, &ext2);
nft_set_ext_exists(ext, NFT_SET_EXT_OBJREF) ^
nft_set_ext_exists(ext2, NFT_SET_EXT_OBJREF)) {
err = -EBUSY;
- goto err5;
+ goto err_element_clash;
}
if ((nft_set_ext_exists(ext, NFT_SET_EXT_DATA) &&
nft_set_ext_exists(ext2, NFT_SET_EXT_DATA) &&
else if (!(nlmsg_flags & NLM_F_EXCL))
err = 0;
}
- goto err5;
+ goto err_element_clash;
}
if (set->size &&
!atomic_add_unless(&set->nelems, 1, set->size + set->ndeact)) {
err = -ENFILE;
- goto err6;
+ goto err_set_full;
}
nft_trans_elem(trans) = elem;
list_add_tail(&trans->list, &ctx->net->nft.commit_list);
return 0;
-err6:
+err_set_full:
set->ops->remove(ctx->net, set, &elem);
-err5:
+err_element_clash:
kfree(trans);
-err4:
+err_trans:
if (obj)
obj->use--;
kfree(elem.priv);
-err3:
+err_parse_data:
if (nla[NFTA_SET_ELEM_DATA] != NULL)
- nft_data_release(&data, d2.type);
-err2:
- nft_data_release(&elem.key.val, d1.type);
-err1:
+ nft_data_release(&data, desc.type);
+err_parse_key_end:
+ nft_data_release(&elem.key_end.val, NFT_DATA_VALUE);
+err_parse_key:
+ nft_data_release(&elem.key.val, NFT_DATA_VALUE);
+
return err;
}
{
struct nlattr *nla[NFTA_SET_ELEM_MAX + 1];
struct nft_set_ext_tmpl tmpl;
- struct nft_data_desc desc;
struct nft_set_elem elem;
struct nft_set_ext *ext;
struct nft_trans *trans;
err = nla_parse_nested_deprecated(nla, NFTA_SET_ELEM_MAX, attr,
nft_set_elem_policy, NULL);
if (err < 0)
- goto err1;
+ return err;
- err = -EINVAL;
if (nla[NFTA_SET_ELEM_KEY] == NULL)
- goto err1;
+ return -EINVAL;
nft_set_ext_prepare(&tmpl);
if (flags != 0)
nft_set_ext_add(&tmpl, NFT_SET_EXT_FLAGS);
- err = nft_data_init(ctx, &elem.key.val, sizeof(elem.key), &desc,
- nla[NFTA_SET_ELEM_KEY]);
+ err = nft_setelem_parse_key(ctx, set, &elem.key.val,
+ nla[NFTA_SET_ELEM_KEY]);
if (err < 0)
- goto err1;
+ return err;
- err = -EINVAL;
- if (desc.type != NFT_DATA_VALUE || desc.len != set->klen)
- goto err2;
+ nft_set_ext_add_length(&tmpl, NFT_SET_EXT_KEY, set->klen);
- nft_set_ext_add_length(&tmpl, NFT_SET_EXT_KEY, desc.len);
+ if (nla[NFTA_SET_ELEM_KEY_END]) {
+ err = nft_setelem_parse_key(ctx, set, &elem.key_end.val,
+ nla[NFTA_SET_ELEM_KEY_END]);
+ if (err < 0)
+ return err;
+
+ nft_set_ext_add_length(&tmpl, NFT_SET_EXT_KEY_END, set->klen);
+ }
err = -ENOMEM;
- elem.priv = nft_set_elem_init(set, &tmpl, elem.key.val.data, NULL, 0,
- 0, GFP_KERNEL);
+ elem.priv = nft_set_elem_init(set, &tmpl, elem.key.val.data,
+ elem.key_end.val.data, NULL, 0, 0,
+ GFP_KERNEL);
if (elem.priv == NULL)
- goto err2;
+ goto fail_elem;
ext = nft_set_elem_ext(set, elem.priv);
if (flags)
*nft_set_ext_flags(ext) = flags;
trans = nft_trans_elem_alloc(ctx, NFT_MSG_DELSETELEM, set);
- if (trans == NULL) {
- err = -ENOMEM;
- goto err3;
- }
+ if (trans == NULL)
+ goto fail_trans;
priv = set->ops->deactivate(ctx->net, set, &elem);
if (priv == NULL) {
err = -ENOENT;
- goto err4;
+ goto fail_ops;
}
kfree(elem.priv);
elem.priv = priv;
list_add_tail(&trans->list, &ctx->net->nft.commit_list);
return 0;
-err4:
+fail_ops:
kfree(trans);
-err3:
+fail_trans:
kfree(elem.priv);
-err2:
- nft_data_release(&elem.key.val, desc.type);
-err1:
+fail_elem:
+ nft_data_release(&elem.key.val, NFT_DATA_VALUE);
return err;
}
projects / linux.git / blobdiff