16#include <linux/netfilter/nf_tables.h>
19#include <libmnl/libmnl.h>
20#include <libnftnl/expr.h>
21#include <libnftnl/rule.h>
29static int nftnl_expr_quota_set(
struct nftnl_expr *e, uint16_t type,
30 const void *data, uint32_t data_len)
35 case NFTNL_EXPR_QUOTA_BYTES:
36 memcpy("a->bytes, data,
sizeof(quota->bytes));
38 case NFTNL_EXPR_QUOTA_CONSUMED:
39 memcpy("a->consumed, data,
sizeof(quota->consumed));
41 case NFTNL_EXPR_QUOTA_FLAGS:
42 memcpy("a->flags, data,
sizeof(quota->flags));
50static const void *nftnl_expr_quota_get(
const struct nftnl_expr *e,
51 uint16_t type, uint32_t *data_len)
56 case NFTNL_EXPR_QUOTA_BYTES:
57 *data_len =
sizeof(quota->bytes);
59 case NFTNL_EXPR_QUOTA_CONSUMED:
60 *data_len =
sizeof(quota->consumed);
61 return "a->consumed;
62 case NFTNL_EXPR_QUOTA_FLAGS:
63 *data_len =
sizeof(quota->flags);
69static int nftnl_expr_quota_cb(
const struct nlattr *attr,
void *data)
71 int type = mnl_attr_get_type(attr);
72 const struct nlattr **tb = data;
74 if (mnl_attr_type_valid(attr, NFTA_QUOTA_MAX) < 0)
78 case NFTA_QUOTA_BYTES:
79 case NFTA_QUOTA_CONSUMED:
80 if (mnl_attr_validate(attr, MNL_TYPE_U64) < 0)
83 case NFTA_QUOTA_FLAGS:
84 if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
94nftnl_expr_quota_build(
struct nlmsghdr *nlh,
const struct nftnl_expr *e)
98 if (e->flags & (1 << NFTNL_EXPR_QUOTA_BYTES))
99 mnl_attr_put_u64(nlh, NFTA_QUOTA_BYTES, htobe64(quota->bytes));
100 if (e->flags & (1 << NFTNL_EXPR_QUOTA_CONSUMED))
101 mnl_attr_put_u64(nlh, NFTA_QUOTA_CONSUMED, htobe64(quota->consumed));
102 if (e->flags & (1 << NFTNL_EXPR_QUOTA_FLAGS))
103 mnl_attr_put_u32(nlh, NFTA_QUOTA_FLAGS, htonl(quota->flags));
107nftnl_expr_quota_parse(
struct nftnl_expr *e,
struct nlattr *attr)
110 struct nlattr *tb[NFTA_QUOTA_MAX + 1] = {};
112 if (mnl_attr_parse_nested(attr, nftnl_expr_quota_cb, tb) < 0)
115 if (tb[NFTA_QUOTA_BYTES]) {
116 quota->bytes = be64toh(mnl_attr_get_u64(tb[NFTA_QUOTA_BYTES]));
117 e->flags |= (1 << NFTNL_EXPR_QUOTA_BYTES);
119 if (tb[NFTA_QUOTA_CONSUMED]) {
120 quota->consumed = be64toh(mnl_attr_get_u64(tb[NFTA_QUOTA_CONSUMED]));
121 e->flags |= (1 << NFTNL_EXPR_QUOTA_CONSUMED);
123 if (tb[NFTA_QUOTA_FLAGS]) {
124 quota->flags = ntohl(mnl_attr_get_u32(tb[NFTA_QUOTA_FLAGS]));
125 e->flags |= (1 << NFTNL_EXPR_QUOTA_FLAGS);
131static int nftnl_expr_quota_snprintf(
char *buf,
size_t len,
133 const struct nftnl_expr *e)
137 return snprintf(buf, len,
138 "bytes %"PRIu64
" consumed %"PRIu64
" flags %u ",
139 quota->bytes, quota->consumed, quota->flags);
142struct expr_ops expr_ops_quota = {
145 .max_attr = NFTA_QUOTA_MAX,
146 .set = nftnl_expr_quota_set,
147 .get = nftnl_expr_quota_get,
148 .parse = nftnl_expr_quota_parse,
149 .build = nftnl_expr_quota_build,
150 .output = nftnl_expr_quota_snprintf,