xref: /titanic_50/usr/src/uts/common/inet/rawip_impl.h (revision 8c4f9701439555b41fbfe7848508f53b52166007)
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 2010 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 /* Copyright (c) 1990 Mentat Inc. */
26 
27 #ifndef	_RAWIP_IMPL_H
28 #define	_RAWIP_IMPL_H
29 
30 #ifdef	__cplusplus
31 extern "C" {
32 #endif
33 
34 #ifdef _KERNEL
35 
36 #include <sys/types.h>
37 #include <sys/netstack.h>
38 
39 #include <netinet/in.h>
40 #include <netinet/icmp6.h>
41 #include <netinet/ip6.h>
42 
43 #include <inet/common.h>
44 #include <inet/ip.h>
45 #include <inet/optcom.h>
46 #include <inet/tunables.h>
47 
48 /*
49  * ICMP stack instances
50  */
51 struct icmp_stack {
52 	netstack_t	*is_netstack;	/* Common netstack */
53 	void		*is_head;	/* Head for list of open icmps */
54 	mod_prop_info_t	*is_propinfo_tbl; /* holds the icmp tunables */
55 	kstat_t		*is_ksp;	/* kstats */
56 	mib2_rawip_t	is_rawip_mib;	/* SNMP fixed size info */
57 	ldi_ident_t	is_ldi_ident;
58 };
59 
60 typedef struct icmp_stack icmp_stack_t;
61 
62 /* Internal icmp control structure, one per open stream */
63 typedef	struct icmp_s {
64 	/*
65 	 * The addresses and ports in the conn_t and icmp_state are protected by
66 	 * conn_lock. conn_lock also protects the content of icmp_t.
67 	 */
68 	uint_t		icmp_state;	/* TPI state */
69 
70 	/* Written to only once at the time of opening the endpoint */
71 	conn_t		*icmp_connp;
72 
73 	uint_t
74 	    icmp_hdrincl : 1,		/* IP_HDRINCL option + RAW and IGMP */
75 
76 	    icmp_pad_to_bit_31: 31;
77 
78 	icmp6_filter_t	*icmp_filter;		/* ICMP6_FILTER option */
79 
80 	/* Set at open time and never changed */
81 	icmp_stack_t	*icmp_is;		/* Stack instance */
82 
83 	int		icmp_delayed_error;
84 	kmutex_t	icmp_recv_lock;
85 	mblk_t		*icmp_fallback_queue_head;
86 	mblk_t		*icmp_fallback_queue_tail;
87 	struct sockaddr_storage	icmp_delayed_addr;
88 } icmp_t;
89 
90 /*
91  * Object to represent database of options to search passed to
92  * {sock,tpi}optcom_req() interface routine to take care of option
93  * management and associated methods.
94  */
95 extern optdb_obj_t	icmp_opt_obj;
96 extern uint_t		icmp_max_optsize;
97 
98 extern int	icmp_opt_default(queue_t *, t_scalar_t, t_scalar_t, uchar_t *);
99 extern int	icmp_tpi_opt_get(queue_t *, t_scalar_t, t_scalar_t, uchar_t *);
100 extern int	icmp_tpi_opt_set(queue_t *, uint_t, int, int, uint_t, uchar_t *,
101 		    uint_t *, uchar_t *, void *, cred_t *);
102 extern mblk_t	*icmp_snmp_get(queue_t *q, mblk_t *mpctl);
103 
104 extern void	icmp_ddi_g_init(void);
105 extern void	icmp_ddi_g_destroy(void);
106 
107 extern sock_lower_handle_t rawip_create(int, int, int, sock_downcalls_t **,
108     uint_t *, int *, int, cred_t *);
109 extern int rawip_fallback(sock_lower_handle_t, queue_t *, boolean_t,
110     so_proto_quiesced_cb_t);
111 
112 extern sock_downcalls_t sock_rawip_downcalls;
113 
114 #endif	/* _KERNEL */
115 
116 #ifdef	__cplusplus
117 }
118 #endif
119 
120 #endif	/* _RAWIP_IMPL_H */
121