12 #include <arpa/inet.h>
16 #include <linux/netfilter/nf_tables.h>
19 #include <libmnl/libmnl.h>
20 #include <libnftnl/expr.h>
21 #include <libnftnl/rule.h>
29 static 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 quota->bytes = *((uint64_t *)data);
38 case NFTNL_EXPR_QUOTA_CONSUMED:
39 quota->consumed = *((uint64_t *)data);
41 case NFTNL_EXPR_QUOTA_FLAGS:
42 quota->flags = *((uint32_t *)data);
50 static 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);
69 static 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)
94 nftnl_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));
107 nftnl_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);
132 nftnl_expr_quota_json_parse(
struct nftnl_expr *e, json_t *root,
133 struct nftnl_parse_err *err)
136 uint64_t bytes, consumed;
139 if (nftnl_jansson_parse_val(root,
"bytes", NFTNL_TYPE_U64, &bytes,
141 nftnl_expr_set_u64(e, NFTNL_EXPR_QUOTA_BYTES, bytes);
142 if (nftnl_jansson_parse_val(root,
"consumed", NFTNL_TYPE_U64, &consumed,
144 nftnl_expr_set_u64(e, NFTNL_EXPR_QUOTA_CONSUMED, consumed);
145 if (nftnl_jansson_parse_val(root,
"flags", NFTNL_TYPE_U32, &flags,
147 nftnl_expr_set_u32(e, NFTNL_EXPR_QUOTA_FLAGS, flags);
156 static int nftnl_expr_quota_export(
char *buf,
size_t size,
157 const struct nftnl_expr *e,
int type)
160 NFTNL_BUF_INIT(b, buf, size);
162 if (e->flags & (1 << NFTNL_EXPR_QUOTA_BYTES))
163 nftnl_buf_u64(&b, type, quota->bytes, BYTES);
164 if (e->flags & (1 << NFTNL_EXPR_QUOTA_CONSUMED))
165 nftnl_buf_u64(&b, type, quota->consumed, CONSUMED);
166 if (e->flags & (1 << NFTNL_EXPR_QUOTA_FLAGS))
167 nftnl_buf_u32(&b, type, quota->flags, FLAGS);
169 return nftnl_buf_done(&b);
172 static int nftnl_expr_quota_snprintf_default(
char *buf,
size_t len,
173 const struct nftnl_expr *e)
177 return snprintf(buf, len,
178 "bytes %"PRIu64
" consumed %"PRIu64
" flags %u ",
179 quota->bytes, quota->consumed, quota->flags);
182 static int nftnl_expr_quota_snprintf(
char *buf,
size_t len, uint32_t type,
184 const struct nftnl_expr *e)
187 case NFTNL_OUTPUT_DEFAULT:
188 return nftnl_expr_quota_snprintf_default(buf, len, e);
189 case NFTNL_OUTPUT_XML:
190 case NFTNL_OUTPUT_JSON:
191 return nftnl_expr_quota_export(buf, len, e, type);
198 struct expr_ops expr_ops_quota = {
201 .max_attr = NFTA_QUOTA_MAX,
202 .set = nftnl_expr_quota_set,
203 .get = nftnl_expr_quota_get,
204 .parse = nftnl_expr_quota_parse,
205 .build = nftnl_expr_quota_build,
206 .snprintf = nftnl_expr_quota_snprintf,
207 .json_parse = nftnl_expr_quota_json_parse,