linux-stable/net/ipv4/netlink.c
Thomas Gleixner 457c899653 treewide: Add SPDX license identifier for missed files
Add SPDX license identifiers to all files which:

 - Have no license information of any form

 - Have EXPORT_.*_SYMBOL_GPL inside which was used in the
   initial scan/conversion to ignore the file

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 10:50:45 +02:00

33 lines
737 B
C

// SPDX-License-Identifier: GPL-2.0-only
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/types.h>
#include <net/net_namespace.h>
#include <net/netlink.h>
#include <linux/in6.h>
#include <net/ip.h>
int rtm_getroute_parse_ip_proto(struct nlattr *attr, u8 *ip_proto, u8 family,
struct netlink_ext_ack *extack)
{
*ip_proto = nla_get_u8(attr);
switch (*ip_proto) {
case IPPROTO_TCP:
case IPPROTO_UDP:
return 0;
case IPPROTO_ICMP:
if (family != AF_INET)
break;
return 0;
#if IS_ENABLED(CONFIG_IPV6)
case IPPROTO_ICMPV6:
if (family != AF_INET6)
break;
return 0;
#endif
}
NL_SET_ERR_MSG(extack, "Unsupported ip proto");
return -EOPNOTSUPP;
}
EXPORT_SYMBOL_GPL(rtm_getroute_parse_ip_proto);