1 // SPDX-License-Identifier: GPL-2.0-only 1
2 #include <linux/netlink.h>
3 #include <linux/rtnetlink.h>
4 #include <linux/types.h>
5 #include <net/net_namespace.h>
6 #include <net/netlink.h>
7 #include <linux/in6.h>
8 #include <net/ip.h>
9
10 int rtm_getroute_parse_ip_proto(struct nlattr
11 struct netlink
12 {
13 *ip_proto = nla_get_u8(attr);
14
15 switch (*ip_proto) {
16 case IPPROTO_TCP:
17 case IPPROTO_UDP:
18 return 0;
19 case IPPROTO_ICMP:
20 if (family != AF_INET)
21 break;
22 return 0;
23 #if IS_ENABLED(CONFIG_IPV6)
24 case IPPROTO_ICMPV6:
25 if (family != AF_INET6)
26 break;
27 return 0;
28 #endif
29 }
30 NL_SET_ERR_MSG(extack, "Unsupported ip
31 return -EOPNOTSUPP;
32 }
33 EXPORT_SYMBOL_GPL(rtm_getroute_parse_ip_proto)
34
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