249 struct nlattr *nlmsg_attrdata(const struct nlmsghdr *nlh, int hdrlen)  in nlmsg_attrdata()  argument
252 	return (struct nlattr *) (data + NLMSG_ALIGN(hdrlen));  in nlmsg_attrdata()
260 int nlmsg_attrlen(const struct nlmsghdr *nlh, int hdrlen)  in nlmsg_attrlen()  argument
262 	return nlmsg_len(nlh) - NLMSG_ALIGN(hdrlen);  in nlmsg_attrlen()
272 int nlmsg_valid_hdr(const struct nlmsghdr *nlh, int hdrlen)  in nlmsg_valid_hdr()  argument
274 	if (nlh->nlmsg_len < nlmsg_msg_size(hdrlen))  in nlmsg_valid_hdr()
319 int nlmsg_parse(struct nlmsghdr *nlh, int hdrlen, struct nlattr *tb[],  in nlmsg_parse()  argument
322 	if (!nlmsg_valid_hdr(nlh, hdrlen))  in nlmsg_parse()
325 	return nla_parse(tb, maxtype, nlmsg_attrdata(nlh, hdrlen),  in nlmsg_parse()
326 			 nlmsg_attrlen(nlh, hdrlen), policy);  in nlmsg_parse()
337 struct nlattr *nlmsg_find_attr(struct nlmsghdr *nlh, int hdrlen, int attrtype)  in nlmsg_find_attr()  argument
339 	return nla_find(nlmsg_attrdata(nlh, hdrlen),  in nlmsg_find_attr()
340 			nlmsg_attrlen(nlh, hdrlen), attrtype);  in nlmsg_find_attr()
350 int nlmsg_validate(struct nlmsghdr *nlh, int hdrlen, int maxtype,  in nlmsg_validate()  argument
353 	if (!nlmsg_valid_hdr(nlh, hdrlen))  in nlmsg_validate()
356 	return nla_validate(nlmsg_attrdata(nlh, hdrlen),  in nlmsg_validate()
357 			    nlmsg_attrlen(nlh, hdrlen), maxtype, policy);  in nlmsg_validate()