xref: /titanic_52/usr/src/uts/common/inet/kssl/ksslapi.h (revision 55f5292c612446ce6f93ddd248c0019b5974618b)
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 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef	_INET_KSSL_KSSLAPI_H
27 #define	_INET_KSSL_KSSLAPI_H
28 
29 /*
30  * The kernel SSL proxy interface
31  */
32 
33 
34 #ifdef	__cplusplus
35 extern "C" {
36 #endif
37 
38 #include	<sys/socket.h>
39 #include	<netinet/in.h>
40 
41 /* return status for the kssl API functions */
42 
43 typedef enum {
44 	KSSL_STS_OK,	/* No further processing required */
45 	KSSL_STS_ERR	/* bogus argument  ... */
46 } kssl_status_t;
47 
48 /* Endpoint type */
49 typedef	enum {
50 	KSSL_NO_PROXY = 0,	/* Not configured for use with KSSL */
51 	KSSL_IS_PROXY,		/* Acts as a proxy for someone else */
52 	KSSL_HAS_PROXY		/* A proxy is handling its work */
53 } kssl_endpt_type_t;
54 
55 /* Return codes/commands from kssl_handle_record */
56 typedef enum {
57 	KSSL_CMD_NOT_SUPPORTED,	/* Not supported */
58 	KSSL_CMD_SEND,		/* send this packet out on the wire */
59 	KSSL_CMD_DELIVER_PROXY,	/* deliver this packet to proxy listener */
60 	KSSL_CMD_DELIVER_SSL,	/* Deliver to the SSL listener */
61 	KSSL_CMD_NONE,		/* consider it consumed. (ACK it, ... */
62 	KSSL_CMD_QUEUED		/* Queued, a call back will finish it */
63 } kssl_cmd_t;
64 
65 /* Un opaque context of an SSL connection */
66 typedef void *kssl_ctx_t;
67 
68 /* Un opaque handle for an SSL map entry */
69 typedef	void *kssl_ent_t;
70 
71 #define	SSL3_HDR_LEN		5
72 #define	SSL3_WROFFSET		7	/* 5 hdr + 2 byte-alignment */
73 #define	SSL3_MAX_TAIL_LEN	36	/* 16 AES blocks +  20 SHA1 digest */
74 #define	SSL3_MAX_RECORD_LEN	16384 - 1 - SSL3_HDR_LEN - SSL3_MAX_TAIL_LEN
75 
76 
77 kssl_endpt_type_t kssl_check_proxy(mblk_t *, void *, kssl_ent_t *);
78 
79 kssl_status_t kssl_init_context(kssl_ent_t, void *, boolean_t,
80     int, kssl_ctx_t *);
81 
82 void kssl_hold_ent(kssl_ent_t);
83 void kssl_release_ent(kssl_ent_t, void *, kssl_endpt_type_t);
84 void *kssl_find_fallback(kssl_ent_t);
85 
86 void kssl_hold_ctx(kssl_ctx_t);
87 void kssl_release_ctx(kssl_ctx_t);
88 
89 typedef void (*kssl_callback_t)(void *arg, mblk_t *mp, kssl_cmd_t cmd);
90 
91 kssl_cmd_t kssl_input(kssl_ctx_t, mblk_t *, mblk_t **, boolean_t *,
92     kssl_callback_t cbfn, void *arg);
93 
94 kssl_cmd_t kssl_handle_mblk(kssl_ctx_t, mblk_t **, mblk_t **);
95 
96 mblk_t *kssl_build_record(kssl_ctx_t, mblk_t *);
97 
98 
99 #ifdef	__cplusplus
100 }
101 #endif
102 
103 #endif	/* _INET_KSSL_KSSLAPI_H */
104