[Feature] add GA346 baseline version
Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/net/ipv4/netlink.c b/src/kernel/linux/v4.19/net/ipv4/netlink.c
new file mode 100644
index 0000000..d8e3a1f
--- /dev/null
+++ b/src/kernel/linux/v4.19/net/ipv4/netlink.c
@@ -0,0 +1,32 @@
+#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);