sys/netgraph/ng_mppc.c

45  * Microsoft PPP compression (MPPC) and encryption (MPPE) netgraph node type.
48  * NETGRAPH_MPPC_ENCRYPTION options for this node type to be useful.
78 static MALLOC_DEFINE(M_NETGRAPH_MPPC, "netgraph_mppc", "netgraph mppc node");
114     &mppe_block_on_max_rekey, 0, "Block node on max MPPE key re-calculations");
158 	ng_ID_t			ctrlnode;	/* path to controlling node */
162 /* Netgraph node methods */
171 static int	ng_mppc_compress(node_p node,
173 static int	ng_mppc_decompress(node_p node,
180 static void	ng_mppc_reset_req(node_p node);
213 ng_mppc_constructor(node_p node)
220 	NG_NODE_SET_PRIVATE(node, priv);
222 	/* This node is not thread safe. */
223 	NG_NODE_FORCE_WRITER(node);
233 ng_mppc_newhook(node_p node, hook_p hook, const char *name)
235 	const priv_p priv = NG_NODE_PRIVATE(node);
259 ng_mppc_rcvmsg(node_p node, item_p item, hook_p lasthook)
261 	const priv_p priv = NG_NODE_PRIVATE(node);
348 			ng_mppc_reset_req(node);
361 	NG_RESPOND_MSG(error, node, item, resp);
372 	const node_p node = NG_HOOK_NODE(hook);
373 	const priv_p priv = NG_NODE_PRIVATE(node);
385 		if ((error = ng_mppc_compress(node, &m)) != 0) {
400 		if ((error = ng_mppc_decompress(node, &m)) != 0) {
410 				NG_SEND_MSG_ID(error, node, msg,
424  * Destroy node
427 ng_mppc_shutdown(node_p node)
429 	const priv_p priv = NG_NODE_PRIVATE(node);
431 	/* Take down netgraph node */
440 	NG_NODE_SET_PRIVATE(node, NULL);
441 	NG_NODE_UNREF(node);		/* let the node escape */
451 	const node_p node = NG_HOOK_NODE(hook);
452 	const priv_p priv = NG_NODE_PRIVATE(node);
461 	if ((NG_NODE_NUMHOOKS(node) == 0)
462 	&& NG_NODE_IS_VALID(node))
463 		ng_rmnode_self(node);
476 ng_mppc_compress(node_p node, struct mbuf **datap)
478 	const priv_p priv = NG_NODE_PRIVATE(node);
625 ng_mppc_decompress(node_p node, struct mbuf **datap)
627 	const priv_p priv = NG_NODE_PRIVATE(node);
667 					" dropped, disabling node %p!\n",
668 					__func__, numLost, node);
675 					" dropped, node %p\n",
676 					__func__, numLost, node);
842 ng_mppc_reset_req(node_p node)
844 	const priv_p priv = NG_NODE_PRIVATE(node);