99ed945821
[ Upstream commit 5e1a99eae84999a2536f50a0beaf5d5262337f40 ]
For ip rules, we need to use 'ipproto ipv6-icmp' to match ICMPv6 headers.
But for ip -6 route, currently we only support tcp, udp and icmp.
Add ICMPv6 support so we can match ipv6-icmp rules for route lookup.
v2: As David Ahern and Sabrina Dubroca suggested, Add an argument to
rtm_getroute_parse_ip_proto() to handle ICMP/ICMPv6 with different family.
Reported-by: Jianlin Shi <jishi@redhat.com>
Fixes: eacb9384a3 ("ipv6: support sport, dport and ip_proto in RTM_GETROUTE")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
32 lines
696 B
C
32 lines
696 B
C
#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);
|