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      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 /* 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 
     47 /* Named Dispatch Parameter Management Structure */
     48 typedef struct icmpparam_s {
     49 	uint_t	icmp_param_min;
     50 	uint_t	icmp_param_max;
     51 	uint_t	icmp_param_value;
     52 	char	*icmp_param_name;
     53 } icmpparam_t;
     54 
     55 /*
     56  * ICMP stack instances
     57  */
     58 struct icmp_stack {
     59 	netstack_t	*is_netstack;	/* Common netstack */
     60 	void		*is_head;	/* Head for list of open icmps */
     61 	IDP		is_nd;	/* Points to table of ICMP ND variables. */
     62 	icmpparam_t	*is_param_arr; 	/* ndd variable table */
     63 	kstat_t		*is_ksp;	/* kstats */
     64 	mib2_rawip_t	is_rawip_mib;	/* SNMP fixed size info */
     65 	ldi_ident_t	is_ldi_ident;
     66 };
     67 
     68 typedef struct icmp_stack icmp_stack_t;
     69 
     70 /* Internal icmp control structure, one per open stream */
     71 typedef	struct icmp_s {
     72 	/*
     73 	 * The addresses and ports in the conn_t and icmp_state are protected by
     74 	 * conn_lock. conn_lock also protects the content of icmp_t.
     75 	 */
     76 	uint_t		icmp_state;	/* TPI state */
     77 
     78 	/* Written to only once at the time of opening the endpoint */
     79 	conn_t		*icmp_connp;
     80 
     81 	uint_t
     82 	    icmp_hdrincl : 1,		/* IP_HDRINCL option + RAW and IGMP */
     83 
     84 	    icmp_pad_to_bit_31: 31;
     85 
     86 	icmp6_filter_t	*icmp_filter;		/* ICMP6_FILTER option */
     87 
     88 	/* Set at open time and never changed */
     89 	icmp_stack_t	*icmp_is;		/* Stack instance */
     90 
     91 	int		icmp_delayed_error;
     92 	kmutex_t	icmp_recv_lock;
     93 	mblk_t		*icmp_fallback_queue_head;
     94 	mblk_t		*icmp_fallback_queue_tail;
     95 	struct sockaddr_storage	icmp_delayed_addr;
     96 } icmp_t;
     97 
     98 /*
     99  * Object to represent database of options to search passed to
    100  * {sock,tpi}optcom_req() interface routine to take care of option
    101  * management and associated methods.
    102  */
    103 extern optdb_obj_t	icmp_opt_obj;
    104 extern uint_t		icmp_max_optsize;
    105 
    106 extern int	icmp_opt_default(queue_t *, t_scalar_t, t_scalar_t, uchar_t *);
    107 extern int	icmp_tpi_opt_get(queue_t *, t_scalar_t, t_scalar_t, uchar_t *);
    108 extern int	icmp_tpi_opt_set(queue_t *, uint_t, int, int, uint_t, uchar_t *,
    109 		    uint_t *, uchar_t *, void *, cred_t *);
    110 extern mblk_t	*icmp_snmp_get(queue_t *q, mblk_t *mpctl);
    111 
    112 extern void	icmp_ddi_g_init(void);
    113 extern void	icmp_ddi_g_destroy(void);
    114 
    115 extern sock_lower_handle_t rawip_create(int, int, int, sock_downcalls_t **,
    116     uint_t *, int *, int, cred_t *);
    117 extern int rawip_fallback(sock_lower_handle_t, queue_t *, boolean_t,
    118     so_proto_quiesced_cb_t);
    119 
    120 extern sock_downcalls_t sock_rawip_downcalls;
    121 
    122 #endif	/* _KERNEL */
    123 
    124 #ifdef	__cplusplus
    125 }
    126 #endif
    127 
    128 #endif	/* _RAWIP_IMPL_H */
    129