xref: /titanic_44/usr/src/uts/common/inet/kssl/ksslapi.h (revision dd49f125507979bb2ab505a8daf2a46d1be27051)
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 (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23  */
24 
25 #ifndef	_INET_KSSL_KSSLAPI_H
26 #define	_INET_KSSL_KSSLAPI_H
27 
28 /*
29  * The kernel SSL proxy interface
30  */
31 
32 
33 #ifdef	__cplusplus
34 extern "C" {
35 #endif
36 
37 #include	<sys/socket.h>
38 #include	<netinet/in.h>
39 
40 /* return status for the kssl API functions */
41 
42 typedef enum {
43 	KSSL_STS_OK,	/* No further processing required */
44 	KSSL_STS_ERR	/* bogus argument  ... */
45 } kssl_status_t;
46 
47 /* Endpoint type */
48 typedef	enum {
49 	KSSL_NO_PROXY = 0,	/* Not configured for use with KSSL */
50 	KSSL_IS_PROXY,		/* Acts as a proxy for someone else */
51 	KSSL_HAS_PROXY		/* A proxy is handling its work */
52 } kssl_endpt_type_t;
53 
54 /* Return codes/commands from kssl_handle_record */
55 typedef enum {
56 	KSSL_CMD_NOT_SUPPORTED,	/* Not supported */
57 	KSSL_CMD_SEND,		/* send this packet out on the wire */
58 	KSSL_CMD_DELIVER_PROXY,	/* deliver this packet to proxy listener */
59 	KSSL_CMD_DELIVER_SSL,	/* Deliver to the SSL listener */
60 	KSSL_CMD_NONE,		/* consider it consumed. (ACK it, ... */
61 	KSSL_CMD_QUEUED		/* Queued, a call back will finish it */
62 } kssl_cmd_t;
63 
64 /* Un opaque context of an SSL connection */
65 typedef void *kssl_ctx_t;
66 
67 /* Un opaque handle for an SSL map entry */
68 typedef	void *kssl_ent_t;
69 
70 #define	SSL3_HDR_LEN		5
71 #define	SSL3_WROFFSET		7	/* 5 hdr + 2 byte-alignment */
72 #define	SSL3_MAX_TAIL_LEN	36	/* 16 AES blocks +  20 SHA1 digest */
73 #define	SSL3_MAX_RECORD_LEN	16384 - 1 - SSL3_HDR_LEN - SSL3_MAX_TAIL_LEN
74 
75 
76 kssl_endpt_type_t kssl_check_proxy(struct sockaddr *, socklen_t, void *,
77     kssl_ent_t *);
78 
79 kssl_status_t kssl_init_context(kssl_ent_t, struct sockaddr *, int,
80     kssl_ctx_t *);
81 void kssl_set_mss(kssl_ctx_t, uint32_t);
82 
83 void kssl_hold_ent(kssl_ent_t);
84 void kssl_release_ent(kssl_ent_t, void *, kssl_endpt_type_t);
85 void *kssl_find_fallback(kssl_ent_t);
86 
87 void kssl_release_ctx(kssl_ctx_t);
88 void kssl_async_done(kssl_ctx_t);
89 
90 typedef void (*kssl_callback_t)(void *arg, mblk_t *mp, kssl_cmd_t cmd);
91 
92 kssl_cmd_t kssl_input(kssl_ctx_t, mblk_t *, mblk_t **, boolean_t *,
93     kssl_callback_t cbfn, void *arg);
94 
95 kssl_cmd_t kssl_handle_mblk(kssl_ctx_t, mblk_t **, mblk_t **);
96 
97 mblk_t *kssl_build_record(kssl_ctx_t, mblk_t *);
98 
99 
100 #ifdef	__cplusplus
101 }
102 #endif
103 
104 #endif	/* _INET_KSSL_KSSLAPI_H */
105