@@ -234,6 +234,8 @@ struct expr {
struct {
/* EXPR_SET_ELEM */
struct expr *key;
+ uint64_t timeout;
+ uint64_t expiration;
};
struct {
/* EXPR_UNARY */
@@ -289,12 +289,16 @@ enum nft_set_elem_flags {
* @NFTA_SET_ELEM_KEY: key value (NLA_NESTED: nft_data)
* @NFTA_SET_ELEM_DATA: data value of mapping (NLA_NESTED: nft_data_attributes)
* @NFTA_SET_ELEM_FLAGS: bitmask of nft_set_elem_flags (NLA_U32)
+ * @NFTA_SET_ELEM_TIMEOUT: timeout value (NLA_U64)
+ * @NFTA_SET_ELEM_EXPIRATION: expiration time (NLA_U64)
*/
enum nft_set_elem_attributes {
NFTA_SET_ELEM_UNSPEC,
NFTA_SET_ELEM_KEY,
NFTA_SET_ELEM_DATA,
NFTA_SET_ELEM_FLAGS,
+ NFTA_SET_ELEM_TIMEOUT,
+ NFTA_SET_ELEM_EXPIRATION,
__NFTA_SET_ELEM_MAX
};
#define NFTA_SET_ELEM_MAX (__NFTA_SET_ELEM_MAX - 1)
@@ -889,6 +889,14 @@ struct expr *set_ref_expr_alloc(const struct location *loc, struct set *set)
static void set_elem_expr_print(const struct expr *expr)
{
expr_print(expr->key);
+ if (expr->timeout) {
+ printf(" timeout ");
+ time_print(expr->timeout / 1000);
+ }
+ if (expr->expiration) {
+ printf(" expires ");
+ time_print(expr->expiration / 1000);
+ }
}
static void set_elem_expr_destroy(struct expr *expr)
@@ -225,6 +225,9 @@ static struct nft_set_elem *alloc_nft_setelem(const struct expr *expr)
netlink_gen_data(key, &nld);
nft_set_elem_attr_set(nlse, NFT_SET_ELEM_ATTR_KEY, &nld.value, nld.len);
+ if (elem->timeout)
+ nft_set_elem_attr_set_u64(nlse, NFT_SET_ELEM_ATTR_TIMEOUT,
+ elem->timeout);
if (data != NULL) {
netlink_gen_data(data, &nld);
@@ -1125,6 +1128,10 @@ static int netlink_delinearize_setelem(struct nft_set_elem *nlse,
key = bitmask_expr_to_binops(key);
expr = set_elem_expr_alloc(&netlink_location, key);
+ if (nft_set_elem_attr_is_set(nlse, NFT_SET_ELEM_ATTR_TIMEOUT))
+ expr->timeout = nft_set_elem_attr_get_u64(nlse, NFT_SET_ELEM_ATTR_TIMEOUT);
+ if (nft_set_elem_attr_is_set(nlse, NFT_SET_ELEM_ATTR_EXPIRATION))
+ expr->expiration = nft_set_elem_attr_get_u64(nlse, NFT_SET_ELEM_ATTR_EXPIRATION);
if (flags & NFT_SET_ELEM_INTERVAL_END) {
expr->flags |= EXPR_F_INTERVAL_END;
@@ -1779,6 +1779,7 @@ set_list_member_expr : opt_newline set_expr opt_newline
;
set_elem_expr : set_elem_expr_alloc
+ | set_elem_expr_alloc set_elem_options
;
set_elem_expr_alloc : set_lhs_expr
@@ -1787,6 +1788,19 @@ set_elem_expr_alloc : set_lhs_expr
}
;
+set_elem_options : set_elem_option
+ {
+ $<expr>$ = $<expr>0;
+ }
+ | set_elem_options set_elem_option
+ ;
+
+set_elem_option : TIMEOUT time_spec
+ {
+ $<expr>0->timeout = $2 * 1000;
+ }
+ ;
+
set_lhs_expr : concat_expr
| multiton_expr
;
Support specifying per element timeout values and displaying the expiration time. If an element should not use the default timeout value of the set, an element specific value can be specified as follows: # nft add element filter test { 192.168.0.1, 192.168.0.2 timeout 10m} For listing of elements that use the default timeout value, just the expiration time is shown, otherwise the element specific timeout value is also displayed: set test { type ipv4_addr timeout 1h elements = { 192.168.0.2 timeout 10m expires 9m59s, 192.168.0.1 expires 59m59s} } Signed-off-by: Patrick McHardy <kaber@trash.net> --- include/expression.h | 2 ++ include/linux/netfilter/nf_tables.h | 4 ++++ src/expression.c | 8 ++++++++ src/netlink.c | 7 +++++++ src/parser_bison.y | 14 ++++++++++++++ 5 files changed, 35 insertions(+)