300 lines
10 KiB
C
300 lines
10 KiB
C
/*----------------------------------------------------------------------
|
|
* key.h : Declarations and Definitions for Key Engine for BSD.
|
|
*
|
|
* Copyright 1995 by Bao Phan, Randall Atkinson, & Dan McDonald,
|
|
* All Rights Reserved. All rights have been assigned to the US
|
|
* Naval Research Laboratory (NRL). The NRL Copyright Notice and
|
|
* License Agreement governs distribution and use of this software.
|
|
*
|
|
* Patents are pending on this technology. NRL grants a license
|
|
* to use this technology at no cost under the terms below with
|
|
* the additional requirement that software, hardware, and
|
|
* documentation relating to use of this technology must include
|
|
* the note that:
|
|
* This product includes technology developed at and
|
|
* licensed from the Information Technology Division,
|
|
* US Naval Research Laboratory.
|
|
*
|
|
----------------------------------------------------------------------*/
|
|
/*----------------------------------------------------------------------
|
|
# @(#)COPYRIGHT 1.1a (NRL) 17 August 1995
|
|
|
|
COPYRIGHT NOTICE
|
|
|
|
All of the documentation and software included in this software
|
|
distribution from the US Naval Research Laboratory (NRL) are
|
|
copyrighted by their respective developers.
|
|
|
|
This software and documentation were developed at NRL by various
|
|
people. Those developers have each copyrighted the portions that they
|
|
developed at NRL and have assigned All Rights for those portions to
|
|
NRL. Outside the USA, NRL also has copyright on the software
|
|
developed at NRL. The affected files all contain specific copyright
|
|
notices and those notices must be retained in any derived work.
|
|
|
|
NRL LICENSE
|
|
|
|
NRL grants permission for redistribution and use in source and binary
|
|
forms, with or without modification, of the software and documentation
|
|
created at NRL provided that the following conditions are met:
|
|
|
|
1. Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
2. Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
3. All advertising materials mentioning features or use of this software
|
|
must display the following acknowledgement:
|
|
|
|
This product includes software developed at the Information
|
|
Technology Division, US Naval Research Laboratory.
|
|
|
|
4. Neither the name of the NRL nor the names of its contributors
|
|
may be used to endorse or promote products derived from this software
|
|
without specific prior written permission.
|
|
|
|
THE SOFTWARE PROVIDED BY NRL IS PROVIDED BY NRL AND CONTRIBUTORS ``AS
|
|
IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
|
|
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NRL OR
|
|
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
|
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
The views and conclusions contained in the software and documentation
|
|
are those of the authors and should not be interpreted as representing
|
|
official policies, either expressed or implied, of the US Naval
|
|
Research Laboratory (NRL).
|
|
|
|
----------------------------------------------------------------------*/
|
|
|
|
#ifndef _netkey_key_h
|
|
#define _netkey_key_h 1
|
|
|
|
/*
|
|
* PF_KEY messages
|
|
*/
|
|
|
|
#define KEY_ADD 1
|
|
#define KEY_DELETE 2
|
|
#define KEY_UPDATE 3
|
|
#define KEY_GET 4
|
|
#define KEY_ACQUIRE 5
|
|
#define KEY_GETSPI 6
|
|
#define KEY_REGISTER 7
|
|
#define KEY_EXPIRE 8
|
|
#define KEY_DUMP 9
|
|
#define KEY_FLUSH 10
|
|
|
|
#define KEY_VERSION 1
|
|
#define POLICY_VERSION 1
|
|
|
|
#define SECURITY_TYPE_NONE 0
|
|
|
|
#define KEY_TYPE_AH 1
|
|
#define KEY_TYPE_ESP 2
|
|
#define KEY_TYPE_RSVP 3
|
|
#define KEY_TYPE_OSPF 4
|
|
#define KEY_TYPE_RIPV2 5
|
|
#define KEY_TYPE_MIPV4 6
|
|
#define KEY_TYPE_MIPV6 7
|
|
#define KEY_TYPE_MAX 7
|
|
|
|
/*
|
|
* Security association state
|
|
*/
|
|
|
|
#define K_USED 0x1 /* Key used/not used */
|
|
#define K_UNIQUE 0x2 /* Key unique/reusable */
|
|
#define K_LARVAL 0x4 /* SPI assigned, but sa incomplete */
|
|
#define K_ZOMBIE 0x8 /* sa expired but still useable */
|
|
#define K_DEAD 0x10 /* sa marked for deletion, ready for reaping */
|
|
#define K_INBOUND 0x20 /* sa for inbound packets, ie. dst=myhost */
|
|
#define K_OUTBOUND 0x40 /* sa for outbound packets, ie. src=myhost */
|
|
|
|
|
|
#ifndef MAX_SOCKADDR_SZ
|
|
#ifdef INET6
|
|
#define MAX_SOCKADDR_SZ (sizeof(struct sockaddr_in6))
|
|
#else /* INET6 */
|
|
#define MAX_SOCKADDR_SZ (sizeof(struct sockaddr_in))
|
|
#endif /* INET6 */
|
|
#endif /* MAX_SOCKADDR_SZ */
|
|
|
|
#ifndef MAX_KEY_SZ
|
|
#define MAX_KEY_SZ 16
|
|
#endif /* MAX_KEY_SZ */
|
|
|
|
#ifndef MAX_IV_SZ
|
|
#define MAX_IV_SZ 16
|
|
#endif /* MAX_IV_SZ */
|
|
|
|
/* Security association data for IP Security */
|
|
struct key_secassoc {
|
|
u_int8_t len; /* Length of the data (for radix) */
|
|
u_int8_t type; /* Type of association */
|
|
u_int8_t vers; /* Version of association (AH/ESP) */
|
|
u_int8_t state; /* State of the association */
|
|
u_int8_t label; /* Sensitivity label (unused) */
|
|
u_int32_t spi; /* SPI */
|
|
u_int8_t keylen; /* Key length */
|
|
u_int8_t ekeylen; /* Extra key length */
|
|
u_int8_t ivlen; /* Initialization vector length */
|
|
u_int8_t algorithm; /* Algorithm switch index */
|
|
u_int8_t lifetype; /* Type of lifetime */
|
|
caddr_t iv; /* Initialization vector */
|
|
caddr_t key; /* Key */
|
|
caddr_t ekey; /* Extra key */
|
|
u_int32_t lifetime1; /* Lifetime value 1 */
|
|
u_int32_t lifetime2; /* Lifetime value 2 */
|
|
struct sockaddr *src; /* Source host address */
|
|
struct sockaddr *dst; /* Destination host address */
|
|
struct sockaddr *from; /* Originator of association */
|
|
|
|
int antireplay; /*anti replay flag*/
|
|
u_int32_t sequence; /*send: sequence number*/
|
|
u_int32_t replayright; /*receive: replay window, right*/
|
|
u_int64_t replaywindow; /*receive: replay window*/
|
|
};
|
|
|
|
/*
|
|
* Structure for key message header. PF_KEY message consists of key_msghdr
|
|
* followed by src struct sockaddr, dest struct sockaddr, from struct
|
|
* sockaddr, key, and iv. Assumes size of key message header less than MHLEN.
|
|
*/
|
|
|
|
struct key_msghdr {
|
|
u_short key_msglen; /* length of message including
|
|
* src/dst/from/key/iv */
|
|
u_char key_msgvers; /* key version number */
|
|
u_char key_msgtype; /* key message type, eg. KEY_ADD */
|
|
pid_t key_pid; /* process id of message sender */
|
|
int key_seq; /* message sequence number */
|
|
int key_errno; /* error code */
|
|
u_int8_t type; /* type of security association */
|
|
u_int8_t vers; /* version of sassoc (AH/ESP) */
|
|
u_int8_t state; /* state of security association */
|
|
u_int8_t label; /* sensitivity level */
|
|
u_int8_t pad; /* padding for allignment */
|
|
u_int32_t spi; /* spi value */
|
|
u_int8_t keylen; /* key length */
|
|
u_int8_t ekeylen; /* extra key length */
|
|
u_int8_t ivlen; /* iv length */
|
|
u_int8_t algorithm; /* algorithm identifier */
|
|
u_int8_t lifetype; /* type of lifetime */
|
|
u_int32_t lifetime1; /* lifetime value 1 */
|
|
u_int32_t lifetime2; /* lifetime value 2 */
|
|
|
|
int antireplay; /* anti replay flag */
|
|
};
|
|
|
|
struct key_msgdata {
|
|
struct sockaddr *src; /* source host address */
|
|
struct sockaddr *dst; /* destination host address */
|
|
struct sockaddr *from; /* originator of security association */
|
|
caddr_t iv; /* initialization vector */
|
|
caddr_t key; /* key */
|
|
caddr_t ekey; /* extra key */
|
|
int ivlen; /* key length */
|
|
int keylen; /* iv length */
|
|
int ekeylen; /* extra key length */
|
|
};
|
|
|
|
struct policy_msghdr {
|
|
u_short policy_msglen; /* message length */
|
|
u_char policy_msgvers; /* message version */
|
|
u_char policy_msgtype; /* message type */
|
|
int policy_seq; /* message sequence number */
|
|
int policy_errno; /* error code */
|
|
};
|
|
|
|
/*
|
|
* Key engine table structures
|
|
*/
|
|
|
|
struct socketlist {
|
|
struct socket *socket; /* pointer to socket */
|
|
struct socketlist *next; /* next */
|
|
};
|
|
|
|
struct key_tblnode {
|
|
int alloc_count; /* number of sockets allocated to
|
|
* secassoc */
|
|
int ref_count; /* number of sockets referencing
|
|
* secassoc */
|
|
struct socketlist *solist; /* list of sockets allocated to
|
|
* secassoc */
|
|
struct key_secassoc *secassoc; /* security association */
|
|
struct key_tblnode *next; /* next node */
|
|
};
|
|
|
|
struct key_allocnode {
|
|
struct key_tblnode *keynode;
|
|
struct key_allocnode *next;
|
|
};
|
|
|
|
struct key_so2spinode {
|
|
struct socket *socket; /* socket pointer */
|
|
struct key_tblnode *keynode; /* pointer to tblnode containing
|
|
* secassoc */
|
|
/* info for socket */
|
|
struct key_so2spinode *next;
|
|
};
|
|
|
|
struct key_registry {
|
|
u_int8_t type; /* secassoc type that key mgnt. daemon can
|
|
* acquire */
|
|
struct socket *socket; /* key management daemon socket pointer */
|
|
struct key_registry *next;
|
|
};
|
|
|
|
struct key_acquirelist {
|
|
u_int8_t type; /* secassoc type to acquire */
|
|
struct sockaddr *target; /* destination address of secassoc */
|
|
u_int32_t count; /* number of acquire messages sent */
|
|
u_long expiretime; /* expiration time for acquire message */
|
|
struct key_acquirelist *next;
|
|
};
|
|
|
|
struct keyso_cb {
|
|
int ip4_count;
|
|
#ifdef INET6
|
|
int ip6_count;
|
|
#endif /*INET6*/
|
|
int any_count; /* Sum of above counters */
|
|
};
|
|
|
|
#ifdef KERNEL
|
|
extern int key_secassoc2msghdr __P((struct key_secassoc *, struct key_msghdr *,
|
|
struct key_msgdata *));
|
|
extern int key_msghdr2secassoc __P((struct key_secassoc *, struct key_msghdr *,
|
|
struct key_msgdata *));
|
|
extern int key_inittables __P((void));
|
|
extern void key_sodelete __P((struct socket *, int));
|
|
extern int key_add __P((struct key_secassoc *));
|
|
extern int key_delete __P((struct key_secassoc *));
|
|
extern int key_get __P((u_int, struct sockaddr *, struct sockaddr *,
|
|
u_int32_t, struct key_secassoc **));
|
|
extern void key_flush __P((void));
|
|
extern int key_dump __P((struct socket *));
|
|
extern int key_getspi __P((u_int, u_int, struct sockaddr *, struct sockaddr *,
|
|
u_int32_t, u_int32_t, u_int32_t *));
|
|
extern int key_update __P((struct key_secassoc *));
|
|
extern int key_register __P((struct socket *, u_int));
|
|
extern void key_unregister __P((struct socket *, u_int, int));
|
|
extern int key_acquire __P((u_int, struct sockaddr *, struct sockaddr *));
|
|
extern int getassocbyspi __P((u_int, struct sockaddr *, struct sockaddr *,
|
|
u_int32_t, struct key_tblnode **));
|
|
extern int getassocbysocket __P((u_int, struct sockaddr *, struct sockaddr *,
|
|
struct socket *, u_int, struct key_tblnode **));
|
|
extern void key_free __P((struct key_tblnode *));
|
|
extern int key_parse __P((struct key_msghdr ** km, struct socket * so,
|
|
int *));
|
|
#endif /* KERNEL */
|
|
|
|
#endif /* _netkey_key_h */
|