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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	_RTS_IMPL_H
     28 #define	_RTS_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 rtsparam_s {
     49 	uint_t	rts_param_min;
     50 	uint_t	rts_param_max;
     51 	uint_t	rts_param_value;
     52 	char	*rts_param_name;
     53 } rtsparam_t;
     54 
     55 /*
     56  * RTS stack instances
     57  */
     58 struct rts_stack {
     59 	netstack_t		*rtss_netstack;	/* Common netstack */
     60 
     61 	caddr_t			rtss_g_nd;
     62 	rtsparam_t		*rtss_params;
     63 
     64 	ldi_ident_t		rtss_ldi_ident;
     65 };
     66 typedef struct rts_stack rts_stack_t;
     67 
     68 /* Internal routing socket stream control structure, one per open stream */
     69 typedef	struct rts_s {
     70 	krwlock_t	rts_rwlock;	/* Protects most of rts_t */
     71 	uint_t	rts_state;		/* Provider interface state */
     72 	uint_t	rts_error;		/* Routing socket error code */
     73 	uint_t	rts_flag;		/* Pending I/O state */
     74 	uint_t
     75 		rts_hdrincl : 1,	/* IP_HDRINCL option + RAW and IGMP */
     76 
     77 		: 0;
     78 	rts_stack_t	*rts_rtss;
     79 
     80 	/* Written to only once at the time of opening the endpoint */
     81 	conn_t		*rts_connp;
     82 
     83 	kmutex_t	rts_recv_mutex;	/* For recv flow control */
     84 } rts_t;
     85 
     86 #define	RTS_WPUT_PENDING	0x1	/* Waiting for write-side to complete */
     87 #define	RTS_WRW_PENDING		0x2	/* Routing socket write in progress */
     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	rts_opt_obj;
     95 extern uint_t		rts_max_optsize;
     96 
     97 extern void	rts_ddi_g_init(void);
     98 extern void	rts_ddi_g_destroy(void);
     99 
    100 extern int	rts_tpi_opt_get(queue_t *, t_scalar_t, t_scalar_t, uchar_t *);
    101 extern int	rts_tpi_opt_set(queue_t *, uint_t, int, int, uint_t, uchar_t *,
    102 		    uint_t *, uchar_t *, void *, cred_t *);
    103 extern int	rts_opt_default(queue_t *q, t_scalar_t level, t_scalar_t name,
    104 		    uchar_t *ptr);
    105 
    106 extern sock_lower_handle_t rts_create(int, int, int, sock_downcalls_t **,
    107     uint_t *, int *, int, cred_t *);
    108 
    109 extern sock_downcalls_t sock_rts_downcalls;
    110 
    111 #endif	/* _KERNEL */
    112 
    113 #ifdef	__cplusplus
    114 }
    115 #endif
    116 
    117 #endif	/* _RTS_IMPL_H */
    118