12 #include <arpa/inet.h> 16 #include <linux/netfilter/nf_tables.h> 19 #include <libmnl/libmnl.h> 20 #include <libnftnl/object.h> 24 static int nftnl_obj_limit_set(
struct nftnl_obj *e, uint16_t type,
25 const void *data, uint32_t data_len)
27 struct nftnl_obj_limit *limit = nftnl_obj_data(e);
30 case NFTNL_OBJ_LIMIT_RATE:
31 memcpy(&limit->rate, data,
sizeof(limit->rate));
33 case NFTNL_OBJ_LIMIT_UNIT:
34 memcpy(&limit->unit, data,
sizeof(limit->unit));
36 case NFTNL_OBJ_LIMIT_BURST:
37 memcpy(&limit->burst, data,
sizeof(limit->burst));
39 case NFTNL_OBJ_LIMIT_TYPE:
40 memcpy(&limit->type, data,
sizeof(limit->type));
42 case NFTNL_OBJ_LIMIT_FLAGS:
43 memcpy(&limit->flags, data,
sizeof(limit->flags));
51 static const void *nftnl_obj_limit_get(
const struct nftnl_obj *e,
52 uint16_t type, uint32_t *data_len)
54 struct nftnl_obj_limit *limit = nftnl_obj_data(e);
57 case NFTNL_OBJ_LIMIT_RATE:
58 *data_len =
sizeof(limit->rate);
60 case NFTNL_OBJ_LIMIT_UNIT:
61 *data_len =
sizeof(limit->unit);
63 case NFTNL_OBJ_LIMIT_BURST:
64 *data_len =
sizeof(limit->burst);
66 case NFTNL_OBJ_LIMIT_TYPE:
67 *data_len =
sizeof(limit->type);
69 case NFTNL_OBJ_LIMIT_FLAGS:
70 *data_len =
sizeof(limit->flags);
76 static int nftnl_obj_limit_cb(
const struct nlattr *attr,
void *data)
78 int type = mnl_attr_get_type(attr);
79 const struct nlattr **tb = data;
81 if (mnl_attr_type_valid(attr, NFTA_LIMIT_MAX) < 0)
87 if (mnl_attr_validate(attr, MNL_TYPE_U64) < 0)
90 case NFTA_LIMIT_BURST:
92 case NFTA_LIMIT_FLAGS:
93 if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
102 static void nftnl_obj_limit_build(
struct nlmsghdr *nlh,
103 const struct nftnl_obj *e)
105 struct nftnl_obj_limit *limit = nftnl_obj_data(e);
107 if (e->flags & (1 << NFTNL_OBJ_LIMIT_RATE))
108 mnl_attr_put_u64(nlh, NFTA_LIMIT_RATE, htobe64(limit->rate));
109 if (e->flags & (1 << NFTNL_OBJ_LIMIT_UNIT))
110 mnl_attr_put_u64(nlh, NFTA_LIMIT_UNIT, htobe64(limit->unit));
111 if (e->flags & (1 << NFTNL_OBJ_LIMIT_BURST))
112 mnl_attr_put_u32(nlh, NFTA_LIMIT_BURST, htonl(limit->burst));
113 if (e->flags & (1 << NFTNL_OBJ_LIMIT_TYPE))
114 mnl_attr_put_u32(nlh, NFTA_LIMIT_TYPE, htonl(limit->type));
115 if (e->flags & (1 << NFTNL_OBJ_LIMIT_FLAGS))
116 mnl_attr_put_u32(nlh, NFTA_LIMIT_FLAGS, htonl(limit->flags));
119 static int nftnl_obj_limit_parse(
struct nftnl_obj *e,
struct nlattr *attr)
121 struct nftnl_obj_limit *limit = nftnl_obj_data(e);
122 struct nlattr *tb[NFTA_LIMIT_MAX + 1] = {};
124 if (mnl_attr_parse_nested(attr, nftnl_obj_limit_cb, tb) < 0)
127 if (tb[NFTA_LIMIT_RATE]) {
128 limit->rate = be64toh(mnl_attr_get_u64(tb[NFTA_LIMIT_RATE]));
129 e->flags |= (1 << NFTNL_OBJ_LIMIT_RATE);
131 if (tb[NFTA_LIMIT_UNIT]) {
132 limit->unit = be64toh(mnl_attr_get_u64(tb[NFTA_LIMIT_UNIT]));
133 e->flags |= (1 << NFTNL_OBJ_LIMIT_UNIT);
135 if (tb[NFTA_LIMIT_BURST]) {
136 limit->burst = ntohl(mnl_attr_get_u32(tb[NFTA_LIMIT_BURST]));
137 e->flags |= (1 << NFTNL_OBJ_LIMIT_BURST);
139 if (tb[NFTA_LIMIT_TYPE]) {
140 limit->type = ntohl(mnl_attr_get_u32(tb[NFTA_LIMIT_TYPE]));
141 e->flags |= (1 << NFTNL_OBJ_LIMIT_TYPE);
143 if (tb[NFTA_LIMIT_FLAGS]) {
144 limit->flags = ntohl(mnl_attr_get_u32(tb[NFTA_LIMIT_FLAGS]));
145 e->flags |= (1 << NFTNL_OBJ_LIMIT_FLAGS);
151 static int nftnl_obj_limit_snprintf_default(
char *buf,
size_t len,
152 const struct nftnl_obj *e)
154 struct nftnl_obj_limit *limit = nftnl_obj_data(e);
156 return snprintf(buf, len,
"rate %"PRIu64
" unit %"PRIu64
" burst %u " 157 "type %u flags %u ", limit->rate, limit->unit,
158 limit->burst, limit->type, limit->flags);
161 static int nftnl_obj_limit_snprintf(
char *buf,
size_t len, uint32_t type,
163 const struct nftnl_obj *e)
169 case NFTNL_OUTPUT_DEFAULT:
170 return nftnl_obj_limit_snprintf_default(buf, len, e);
171 case NFTNL_OUTPUT_XML:
172 case NFTNL_OUTPUT_JSON:
179 struct obj_ops obj_ops_limit = {
181 .type = NFT_OBJECT_LIMIT,
182 .alloc_len =
sizeof(
struct nftnl_obj_limit),
183 .max_attr = NFTA_LIMIT_MAX,
184 .set = nftnl_obj_limit_set,
185 .get = nftnl_obj_limit_get,
186 .parse = nftnl_obj_limit_parse,
187 .build = nftnl_obj_limit_build,
188 .snprintf = nftnl_obj_limit_snprintf,