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) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
23  */
24 /* Copyright (c) 1990 Mentat Inc. */
25 
26 #ifndef	_RAWIP_IMPL_H
27 #define	_RAWIP_IMPL_H
28 
29 #ifdef	__cplusplus
30 extern "C" {
31 #endif
32 
33 #ifdef _KERNEL
34 
35 #include <sys/types.h>
36 #include <sys/netstack.h>
37 
38 #include <netinet/in.h>
39 #include <netinet/icmp6.h>
40 #include <netinet/ip6.h>
41 
42 #include <inet/common.h>
43 #include <inet/ip.h>
44 #include <inet/optcom.h>
45 #include <inet/tunables.h>
46 
47 /*
48  * ICMP stack instances
49  */
50 struct icmp_stack {
51 	netstack_t	*is_netstack;	/* Common netstack */
52 	void		*is_head;	/* Head for list of open icmps */
53 	mod_prop_info_t	*is_propinfo_tbl; /* holds the icmp tunables */
54 	kstat_t		*is_ksp;	/* kstats */
55 	mib2_rawip_t	is_rawip_mib;	/* SNMP fixed size info */
56 	ldi_ident_t	is_ldi_ident;
57 };
58 
59 typedef struct icmp_stack icmp_stack_t;
60 
61 /* Internal icmp control structure, one per open stream */
62 typedef	struct icmp_s {
63 	/*
64 	 * The addresses and ports in the conn_t and icmp_state are protected by
65 	 * conn_lock. conn_lock also protects the content of icmp_t.
66 	 */
67 	uint_t		icmp_state;	/* TPI state */
68 
69 	/* Written to only once at the time of opening the endpoint */
70 	conn_t		*icmp_connp;
71 
72 	uint_t
73 	    icmp_hdrincl : 1,		/* IP_HDRINCL option + RAW and IGMP */
74 
75 	    icmp_pad_to_bit_31: 31;
76 
77 	icmp6_filter_t	*icmp_filter;		/* ICMP6_FILTER option */
78 
79 	/* Set at open time and never changed */
80 	icmp_stack_t	*icmp_is;		/* Stack instance */
81 
82 	int		icmp_delayed_error;
83 	kmutex_t	icmp_recv_lock;
84 	mblk_t		*icmp_fallback_queue_head;
85 	mblk_t		*icmp_fallback_queue_tail;
86 	struct sockaddr_storage	icmp_delayed_addr;
87 } icmp_t;
88 
89 /*
90  * Object to represent database of options to search passed to
91  * {sock,tpi}optcom_req() interface routine to take care of option
92  * management and associated methods.
93  */
94 extern optdb_obj_t	icmp_opt_obj;
95 extern uint_t		icmp_max_optsize;
96 
97 extern int	icmp_opt_default(queue_t *, t_scalar_t, t_scalar_t, uchar_t *);
98 extern int	icmp_tpi_opt_get(queue_t *, t_scalar_t, t_scalar_t, uchar_t *);
99 extern int	icmp_tpi_opt_set(queue_t *, uint_t, int, int, uint_t, uchar_t *,
100 		    uint_t *, uchar_t *, void *, cred_t *);
101 extern mblk_t	*icmp_snmp_get(queue_t *q, mblk_t *mpctl);
102 
103 extern void	icmp_ddi_g_init(void);
104 extern void	icmp_ddi_g_destroy(void);
105 
106 extern sock_lower_handle_t rawip_create(int, int, int, sock_downcalls_t **,
107     uint_t *, int *, int, cred_t *);
108 extern int rawip_fallback(sock_lower_handle_t, queue_t *, boolean_t,
109     so_proto_quiesced_cb_t, sock_quiesce_arg_t *);
110 
111 extern sock_downcalls_t sock_rawip_downcalls;
112 
113 #endif	/* _KERNEL */
114 
115 #ifdef	__cplusplus
116 }
117 #endif
118 
119 #endif	/* _RAWIP_IMPL_H */
120