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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 2008 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 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     31 
     32 #ifdef	__cplusplus
     33 extern "C" {
     34 #endif
     35 
     36 #ifdef _KERNEL
     37 
     38 #include <sys/types.h>
     39 #include <sys/netstack.h>
     40 
     41 #include <netinet/in.h>
     42 #include <netinet/icmp6.h>
     43 #include <netinet/ip6.h>
     44 
     45 #include <inet/common.h>
     46 #include <inet/ip.h>
     47 
     48 /* Named Dispatch Parameter Management Structure */
     49 typedef struct icmpparam_s {
     50 	uint_t	icmp_param_min;
     51 	uint_t	icmp_param_max;
     52 	uint_t	icmp_param_value;
     53 	char	*icmp_param_name;
     54 } icmpparam_t;
     55 
     56 /*
     57  * ICMP stack instances
     58  */
     59 struct icmp_stack {
     60 	netstack_t	*is_netstack;	/* Common netstack */
     61 	void		*is_head;	/* Head for list of open icmps */
     62 	IDP		is_nd;	/* Points to table of ICMP ND variables. */
     63 	icmpparam_t	*is_param_arr; 	/* ndd variable table */
     64 	kstat_t		*is_ksp;	/* kstats */
     65 	mib2_rawip_t	is_rawip_mib;	/* SNMP fixed size info */
     66 };
     67 typedef struct icmp_stack icmp_stack_t;
     68 
     69 /* Internal icmp control structure, one per open stream */
     70 typedef	struct icmp_s {
     71 	krwlock_t	icmp_rwlock;	/* Protects most of icmp_t */
     72 	t_scalar_t	icmp_pending_op;	/* The current TPI operation */
     73 	/*
     74 	 * Following fields up to icmp_ipversion protected by conn_lock.
     75 	 */
     76 	uint_t		icmp_state;	/* TPI state */
     77 	in6_addr_t	icmp_v6src;	/* Source address of this stream */
     78 	in6_addr_t	icmp_bound_v6src; /* Explicitely bound to address */
     79 	in6_addr_t 	icmp_v6dst;	/* Connected destination */
     80 	/*
     81 	 * IP format that packets transmitted from this struct should use.
     82 	 * Value can be IP4_VERSION or IPV6_VERSION.
     83 	 */
     84 	uchar_t		icmp_ipversion;
     85 
     86 	/* Written to only once at the time of opening the endpoint */
     87 	sa_family_t	icmp_family;	/* Family from socket() call */
     88 
     89 	/* Following protected by icmp_rwlock */
     90 	uint32_t	icmp_flowinfo;	/* Connected flow id and tclass */
     91 	uint32_t 	icmp_max_hdr_len; /* For write offset in stream head */
     92 	uint_t		icmp_proto;
     93 	uint_t		icmp_ip_snd_options_len; /* Len of IPv4 options */
     94 	uint8_t		*icmp_ip_snd_options;	/* Ptr to IPv4 options */
     95 	uint8_t		icmp_multicast_ttl;	/* IP*_MULTICAST_TTL/HOPS */
     96 	ipaddr_t	icmp_multicast_if_addr; /* IP_MULTICAST_IF option */
     97 	uint_t		icmp_multicast_if_index; /* IPV6_MULTICAST_IF option */
     98 	int		icmp_bound_if;		/* IP*_BOUND_IF option */
     99 
    100 	/* Written to only once at the time of opening the endpoint */
    101 	conn_t		*icmp_connp;
    102 
    103 	/* Following protected by icmp_rwlock */
    104 	uint_t
    105 	    icmp_debug : 1,		/* SO_DEBUG "socket" option. */
    106 	    icmp_dontroute : 1,		/* SO_DONTROUTE "socket" option. */
    107 	    icmp_broadcast : 1,		/* SO_BROADCAST "socket" option. */
    108 	    icmp_reuseaddr : 1,		/* SO_REUSEADDR "socket" option. */
    109 
    110 	    icmp_useloopback : 1,	/* SO_USELOOPBACK "socket" option. */
    111 	    icmp_hdrincl : 1,		/* IP_HDRINCL option + RAW and IGMP */
    112 	    icmp_dgram_errind : 1,	/* SO_DGRAM_ERRIND option */
    113 	    icmp_unspec_source : 1,	/* IP*_UNSPEC_SRC option */
    114 
    115 	    icmp_raw_checksum : 1,	/* raw checksum per IPV6_CHECKSUM */
    116 	    icmp_no_tp_cksum : 1,	/* icmp_proto is UDP or TCP */
    117 	    icmp_ip_recvpktinfo : 1,	/* IPV[4,6]_RECVPKTINFO option  */
    118 	    icmp_ipv6_recvhoplimit : 1,	/* IPV6_RECVHOPLIMIT option */
    119 
    120 	    icmp_ipv6_recvhopopts : 1,	/* IPV6_RECVHOPOPTS option */
    121 	    icmp_ipv6_recvdstopts : 1,	/* IPV6_RECVDSTOPTS option */
    122 	    icmp_ipv6_recvrthdr : 1,	/* IPV6_RECVRTHDR option */
    123 	    icmp_ipv6_recvpathmtu : 1,	/* IPV6_RECVPATHMTU option */
    124 
    125 	    icmp_recvif:1,		/* IP_RECVIF for raw sockets option */
    126 	    icmp_ipv6_recvtclass : 1,	/* IPV6_RECVTCLASS option */
    127 	    icmp_ipv6_recvrtdstopts : 1, /* Obsolete IPV6_RECVRTHDRDSTOPTS */
    128 	    icmp_old_ipv6_recvdstopts : 1, /* Old ver of IPV6_RECVDSTOPTS */
    129 
    130 	    icmp_timestamp : 1,  	/* SO_TIMESTAMP "socket" option */
    131 
    132 	    icmp_pad_to_bit_31: 11;
    133 
    134 	uint8_t		icmp_type_of_service;
    135 	uint8_t		icmp_ttl;		/* TTL or hoplimit */
    136 	uint32_t	icmp_checksum_off; /* user supplied checksum offset */
    137 	icmp6_filter_t	*icmp_filter;		/* ICMP6_FILTER option */
    138 
    139 	ip6_pkt_t	icmp_sticky_ipp;	/* Sticky options */
    140 	uint8_t		*icmp_sticky_hdrs;	/* Prebuilt IPv6 hdrs */
    141 	uint_t		icmp_sticky_hdrs_len;	/* Incl. ip6h and any ip6i */
    142 	zoneid_t	icmp_zoneid;		/* ID of owning zone */
    143 	uint_t		icmp_label_len;		/* length of security label */
    144 	uint_t		icmp_label_len_v6;	/* sec. part of sticky opt */
    145 	in6_addr_t 	icmp_v6lastdst;		/* most recent destination */
    146 	icmp_stack_t	*icmp_is;		/* Stack instance */
    147 } icmp_t;
    148 
    149 /*
    150  * Object to represent database of options to search passed to
    151  * {sock,tpi}optcom_req() interface routine to take care of option
    152  * management and associated methods.
    153  */
    154 extern optdb_obj_t	icmp_opt_obj;
    155 extern uint_t		icmp_max_optsize;
    156 
    157 extern mblk_t	*icmp_snmp_get(queue_t *q, mblk_t *mpctl);
    158 extern void	rawip_resume_bind(conn_t *, mblk_t *);
    159 
    160 extern void	icmp_ddi_init(void);
    161 extern void	icmp_ddi_destroy(void);
    162 
    163 #endif	/* _KERNEL */
    164 
    165 #ifdef	__cplusplus
    166 }
    167 #endif
    168 
    169 #endif	/* _RAWIP_IMPL_H */
    170