12 #include <arpa/inet.h>
16 #include <linux/netfilter/nf_tables.h>
18 #include <libmnl/libmnl.h>
19 #include <libnftnl/object.h>
25 nftnl_obj_counter_set(
struct nftnl_obj *e, uint16_t type,
26 const void *data, uint32_t data_len)
28 struct nftnl_obj_counter *ctr = nftnl_obj_data(e);
31 case NFTNL_OBJ_CTR_BYTES:
32 ctr->bytes = *((uint64_t *)data);
34 case NFTNL_OBJ_CTR_PKTS:
35 ctr->pkts = *((uint64_t *)data);
44 nftnl_obj_counter_get(
const struct nftnl_obj *e, uint16_t type,
47 struct nftnl_obj_counter *ctr = nftnl_obj_data(e);
50 case NFTNL_OBJ_CTR_BYTES:
51 *data_len =
sizeof(ctr->bytes);
53 case NFTNL_OBJ_CTR_PKTS:
54 *data_len =
sizeof(ctr->pkts);
60 static int nftnl_obj_counter_cb(
const struct nlattr *attr,
void *data)
62 const struct nlattr **tb = data;
63 int type = mnl_attr_get_type(attr);
65 if (mnl_attr_type_valid(attr, NFTA_COUNTER_MAX) < 0)
69 case NFTA_COUNTER_BYTES:
70 case NFTA_COUNTER_PACKETS:
71 if (mnl_attr_validate(attr, MNL_TYPE_U64) < 0)
81 nftnl_obj_counter_build(
struct nlmsghdr *nlh,
const struct nftnl_obj *e)
83 struct nftnl_obj_counter *ctr = nftnl_obj_data(e);
85 if (e->flags & (1 << NFTNL_OBJ_CTR_BYTES))
86 mnl_attr_put_u64(nlh, NFTA_COUNTER_BYTES, htobe64(ctr->bytes));
87 if (e->flags & (1 << NFTNL_OBJ_CTR_PKTS))
88 mnl_attr_put_u64(nlh, NFTA_COUNTER_PACKETS, htobe64(ctr->pkts));
92 nftnl_obj_counter_parse(
struct nftnl_obj *e,
struct nlattr *attr)
94 struct nftnl_obj_counter *ctr = nftnl_obj_data(e);
95 struct nlattr *tb[NFTA_COUNTER_MAX+1] = {};
97 if (mnl_attr_parse_nested(attr, nftnl_obj_counter_cb, tb) < 0)
100 if (tb[NFTA_COUNTER_BYTES]) {
101 ctr->bytes = be64toh(mnl_attr_get_u64(tb[NFTA_COUNTER_BYTES]));
102 e->flags |= (1 << NFTNL_OBJ_CTR_BYTES);
104 if (tb[NFTA_COUNTER_PACKETS]) {
105 ctr->pkts = be64toh(mnl_attr_get_u64(tb[NFTA_COUNTER_PACKETS]));
106 e->flags |= (1 << NFTNL_OBJ_CTR_PKTS);
113 nftnl_obj_counter_json_parse(
struct nftnl_obj *e, json_t *root,
114 struct nftnl_parse_err *err)
119 if (nftnl_jansson_parse_val(root,
"pkts", NFTNL_TYPE_U64, &uval64,
121 nftnl_obj_set_u64(e, NFTNL_OBJ_CTR_PKTS, uval64);
123 if (nftnl_jansson_parse_val(root,
"bytes", NFTNL_TYPE_U64, &uval64,
125 nftnl_obj_set_u64(e, NFTNL_OBJ_CTR_BYTES, uval64);
134 static int nftnl_obj_counter_export(
char *buf,
size_t size,
135 const struct nftnl_obj *e,
int type)
137 struct nftnl_obj_counter *ctr = nftnl_obj_data(e);
138 NFTNL_BUF_INIT(b, buf, size);
140 if (e->flags & (1 << NFTNL_OBJ_CTR_PKTS))
141 nftnl_buf_u64(&b, type, ctr->pkts, PKTS);
142 if (e->flags & (1 << NFTNL_OBJ_CTR_BYTES))
143 nftnl_buf_u64(&b, type, ctr->bytes, BYTES);
145 return nftnl_buf_done(&b);
148 static int nftnl_obj_counter_snprintf_default(
char *buf,
size_t len,
149 const struct nftnl_obj *e)
151 struct nftnl_obj_counter *ctr = nftnl_obj_data(e);
153 return snprintf(buf, len,
"pkts %"PRIu64
" bytes %"PRIu64
" ",
154 ctr->pkts, ctr->bytes);
157 static int nftnl_obj_counter_snprintf(
char *buf,
size_t len, uint32_t type,
159 const struct nftnl_obj *e)
165 case NFTNL_OUTPUT_DEFAULT:
166 return nftnl_obj_counter_snprintf_default(buf, len, e);
167 case NFTNL_OUTPUT_XML:
168 case NFTNL_OUTPUT_JSON:
169 return nftnl_obj_counter_export(buf, len, e, type);
176 struct obj_ops obj_ops_counter = {
178 .type = NFT_OBJECT_COUNTER,
179 .alloc_len =
sizeof(
struct nftnl_obj_counter),
180 .max_attr = NFTA_COUNTER_MAX,
181 .set = nftnl_obj_counter_set,
182 .get = nftnl_obj_counter_get,
183 .parse = nftnl_obj_counter_parse,
184 .build = nftnl_obj_counter_build,
185 .snprintf = nftnl_obj_counter_snprintf,
186 .json_parse = nftnl_obj_counter_json_parse,