1#include <linux/netlink.h>
2#include <linux/rtnetlink.h>
3#include <linux/types.h>
4#include <net/net_namespace.h>
5#include <net/netlink.h>
6#include <net/ip.h>
7
8int rtm_getroute_parse_ip_proto(struct nlattr *attr, u8 *ip_proto,
9 struct netlink_ext_ack *extack)
10{
11 *ip_proto = nla_get_u8(attr);
12
13 switch (*ip_proto) {
14 case IPPROTO_TCP:
15 case IPPROTO_UDP:
16 case IPPROTO_ICMP:
17 return 0;
18 default:
19 NL_SET_ERR_MSG(extack, "Unsupported ip proto");
20 return -EOPNOTSUPP;
21 }
22}
23EXPORT_SYMBOL_GPL(rtm_getroute_parse_ip_proto);
24