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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 /*
     22  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
     23  * Use is subject to license terms.
     24  */
     25 
     26 #ifndef	_INET_IPSECESP_H
     27 #define	_INET_IPSECESP_H
     28 
     29 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     30 
     31 #include <inet/ip.h>
     32 #include <inet/ipdrop.h>
     33 
     34 #ifdef	__cplusplus
     35 extern "C" {
     36 #endif
     37 
     38 #ifdef _KERNEL
     39 
     40 /* Named Dispatch Parameter Management Structure */
     41 typedef struct ipsecespparam_s {
     42 	uint_t	ipsecesp_param_min;
     43 	uint_t	ipsecesp_param_max;
     44 	uint_t	ipsecesp_param_value;
     45 	char	*ipsecesp_param_name;
     46 } ipsecespparam_t;
     47 
     48 /*
     49  * IPSECESP stack instances
     50  */
     51 struct ipsecesp_stack {
     52 	netstack_t		*ipsecesp_netstack;	/* Common netstack */
     53 
     54 	caddr_t			ipsecesp_g_nd;
     55 	struct ipsecespparam_s	*ipsecesp_params;
     56 	kmutex_t		ipsecesp_param_lock;	/* Protects params */
     57 
     58 	/* Packet dropper for ESP drops. */
     59 	ipdropper_t		esp_dropper;
     60 
     61 	kstat_t			*esp_ksp;
     62 	struct esp_kstats_s	*esp_kstats;
     63 
     64 	/*
     65 	 * Keysock instance of ESP.  There can be only one per stack instance.
     66 	 * Use casptr() on this because I don't set it until KEYSOCK_HELLO
     67 	 * comes down.
     68 	 * Paired up with the esp_pfkey_q is the esp_event, which will age SAs.
     69 	 */
     70 	queue_t			*esp_pfkey_q;
     71 	timeout_id_t		esp_event;
     72 
     73 	mblk_t			*esp_ip_unbind;
     74 
     75 	sadbp_t			esp_sadb;
     76 
     77 };
     78 typedef struct ipsecesp_stack ipsecesp_stack_t;
     79 
     80 /* Define *this* NDD variable here because we use it outside ESP proper. */
     81 #define	ipsecesp_nat_keepalive_interval	\
     82 	ipsecesp_params[14].ipsecesp_param_value
     83 
     84 #endif	/* _KERNEL */
     85 
     86 /*
     87  * For now, only provide "aligned" version of header.
     88  * If aligned version is needed, we'll go with the naming conventions then.
     89  */
     90 
     91 typedef struct esph {
     92 	uint32_t esph_spi;
     93 	uint32_t esph_replay;
     94 } esph_t;
     95 
     96 /* No need for "old" ESP, just point a uint32_t *. */
     97 
     98 #ifdef	__cplusplus
     99 }
    100 #endif
    101 
    102 #endif /* _INET_IPSECESP_H */
    103