1 /* xfrm6_protocol.c - Generic xfrm protocol multiplexer for ipv6.
22 #include <net/protocol.h>
30 static inline struct xfrm6_protocol __rcu **proto_handlers(u8 protocol)  in proto_handlers()  argument
32 	switch (protocol) {  in proto_handlers()
49 int xfrm6_rcv_cb(struct sk_buff *skb, u8 protocol, int err)  in xfrm6_rcv_cb()  argument
53 	struct xfrm6_protocol __rcu **head = proto_handlers(protocol);  in xfrm6_rcv_cb()
58 	for_each_protocol_rcu(*proto_handlers(protocol), handler)  in xfrm6_rcv_cb()
170 static inline const struct inet6_protocol *netproto(unsigned char protocol)  in netproto()  argument
172 	switch (protocol) {  in netproto()
185 			    unsigned char protocol)  in xfrm6_protocol_register()  argument
193 	if (!proto_handlers(protocol) || !netproto(protocol))  in xfrm6_protocol_register()
198 	if (!rcu_dereference_protected(*proto_handlers(protocol),  in xfrm6_protocol_register()
202 	for (pprev = proto_handlers(protocol);  in xfrm6_protocol_register()
221 		if (inet6_add_protocol(netproto(protocol), protocol)) {  in xfrm6_protocol_register()
222 			pr_err("%s: can't add protocol\n", __func__);  in xfrm6_protocol_register()
232 			      unsigned char protocol)  in xfrm6_protocol_deregister()  argument
238 	if (!proto_handlers(protocol) || !netproto(protocol))  in xfrm6_protocol_deregister()
243 	for (pprev = proto_handlers(protocol);  in xfrm6_protocol_deregister()
254 	if (!rcu_dereference_protected(*proto_handlers(protocol),  in xfrm6_protocol_deregister()
256 		if (inet6_del_protocol(netproto(protocol), protocol) < 0) {  in xfrm6_protocol_deregister()
257 			pr_err("%s: can't remove protocol\n", __func__);  in xfrm6_protocol_deregister()