25 static struct nlattr *nla_next(const struct nlattr *nla, int *remaining)  in nla_next()  argument
27 	int totlen = NLA_ALIGN(nla->nla_len);  in nla_next()
30 	return (struct nlattr *)((void *)nla + totlen);  in nla_next()
33 static int nla_ok(const struct nlattr *nla, int remaining)  in nla_ok()  argument
35 	return remaining >= (int)sizeof(*nla) &&  in nla_ok()
36 	       nla->nla_len >= sizeof(*nla) &&  in nla_ok()
37 	       nla->nla_len <= remaining;  in nla_ok()
40 static int nla_type(const struct nlattr *nla)  in nla_type()  argument
42 	return nla->nla_type & NLA_TYPE_MASK;  in nla_type()
45 static int validate_nla(struct nlattr *nla, int maxtype,  in validate_nla()  argument
50 	int type = nla_type(nla);  in validate_nla()
65 	if (libbpf_nla_len(nla) < minlen)  in validate_nla()
68 	if (pt->maxlen && libbpf_nla_len(nla) > pt->maxlen)  in validate_nla()
72 		char *data = libbpf_nla_data(nla);  in validate_nla()
74 		if (data[libbpf_nla_len(nla) - 1] != '\0')  in validate_nla()
107 	struct nlattr *nla;  in libbpf_nla_parse()  local
112 	libbpf_nla_for_each_attr(nla, head, len, rem) {  in libbpf_nla_parse()
113 		int type = nla_type(nla);  in libbpf_nla_parse()
119 			err = validate_nla(nla, maxtype, policy);  in libbpf_nla_parse()
128 		tb[type] = nla;  in libbpf_nla_parse()
150 			    struct nlattr *nla,  in libbpf_nla_parse_nested()  argument
153 	return libbpf_nla_parse(tb, maxtype, libbpf_nla_data(nla),  in libbpf_nla_parse_nested()
154 				libbpf_nla_len(nla), policy);  in libbpf_nla_parse_nested()