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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 /*
     23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 /*
     28  * sppptun_impl.h - Internal sppptun data exposed for adb/mdb macros.
     29  */
     30 
     31 #ifndef	_SPPPTUN_IMPL_H
     32 #define	_SPPPTUN_IMPL_H
     33 
     34 #ifdef	__cplusplus
     35 extern "C" {
     36 #endif
     37 
     38 /* For use with insque/remque (belongs in a system header!) */
     39 struct qelem {
     40 	struct qelem *q_forw;
     41 	struct qelem *q_back;
     42 };
     43 
     44 typedef struct tunll_s tunll_t;
     45 typedef struct tuncl_s tuncl_t;
     46 
     47 typedef struct {
     48 	kstat_named_t	lks_octrls;		/* sent control messages */
     49 	kstat_named_t	lks_octrl_drop;		/* dropped control messages */
     50 	kstat_named_t	lks_clients;		/* number of clients (tcls) */
     51 	kstat_named_t	lks_walks;		/* PPPoE tcl walks */
     52 	kstat_named_t	lks_in_nomatch;		/* input without match */
     53 	kstat_named_t	lks_indata;		/* input data packets */
     54 	kstat_named_t	lks_indata_drops;	/* input data packet drops */
     55 	kstat_named_t	lks_inctrls;		/* input control packets */
     56 	kstat_named_t	lks_inctrl_drops;	/* input control pkt drops */
     57 } tll_kstats_t;
     58 
     59 #define	TLL_KSTATS_NAMES \
     60 	"octrls", "octrl_drop", "clients", "walks", "in_nomatch", \
     61 	"indata", "indata_drops", "inctrls", "inctrl_drops"
     62 
     63 typedef struct {
     64 	kstat_named_t	cks_octrls;		/* sent control messages */
     65 	kstat_named_t	cks_octrl_drop;		/* dropped control messages */
     66 	kstat_named_t	cks_octrl_spec;		/* special control messages */
     67 	kstat_named_t	cks_walks;		/* PPPoE tcl walks */
     68 	kstat_named_t	cks_inctrls;		/* input control messages */
     69 	kstat_named_t	cks_inctrl_drops;	/* input control pkt drops */
     70 } tcl_kstats_t;
     71 
     72 #define	TCL_KSTATS_NAMES \
     73 	"octrls", "octrl_drop", "octrl_spec", "walks", "inctrls", \
     74 	"inctrl_drops"
     75 
     76 /*
     77  * Tunnel lower layer structure; module open; connects to output device.
     78  *
     79  * Note: tll_flags member carefully aligned to match with tcl_flags in
     80  * following structure so that we don't have to continually look at
     81  * q_next to determine context.  Do not move these around.
     82  *
     83  * Note: this is also defined in uts/adb/common/tunll.dbg; if you change
     84  * this structure, don't forget to change the adb/mdb macro.
     85  */
     86 struct tunll_s {
     87 	uint32_t tll_flags;		/* See TLLF_* below */
     88 	void *tll_next, *tll_prev;
     89 
     90 	int tll_error;
     91 	queue_t *tll_wq;		/* Output data sent here */
     92 	tuncl_t *tll_defcl;		/* Default client (daemon) */
     93 	ppptun_atype tll_lcladdr;	/* Local address */
     94 
     95 	tuncl_t *tll_lastcl;		/* Silly PPPoE optimization */
     96 
     97 	ppptun_lname tll_name;
     98 	int tll_index;
     99 	int tll_muxid;
    100 	int tll_style;			/* Interface type; PTS_* */
    101 	int tll_alen;			/* Address length */
    102 
    103 	int tll_msg_pending;
    104 	mblk_t *tll_msg_deferred;
    105 
    106 	mblk_t *tll_onclose;
    107 
    108 	tll_kstats_t tll_kstats;	/* current statistics */
    109 	kstat_t *tll_ksp;		/* pointer to kstats allocation */
    110 
    111 	uint_t tll_sap;			/* SAP for PPPoE */
    112 
    113 	zoneid_t tll_zoneid;
    114 };
    115 
    116 /*
    117  * Tunnel client structure; used for each device open.
    118  *
    119  * There is one of these for each PPP session plus (perhaps) one for
    120  * each tunneling protocol server daemon.
    121  *
    122  * Note: this is also defined in uts/adb/common/tuncl.dbg; if you change
    123  * this structure, don't forget to change the adb/mdb macro.
    124  */
    125 struct tuncl_s {
    126 	uint32_t tcl_flags;		/* TCLF_ flags below */
    127 
    128 	tunll_t *tcl_data_tll;		/* Pointer to data interface */
    129 	tunll_t *tcl_ctrl_tll;		/* Pointer to control */
    130 
    131 	queue_t *tcl_rq;		/* Received data sent here. */
    132 
    133 	uint32_t tcl_seq;
    134 
    135 	uint32_t tcl_ctlval;		/* Control distinguisher */
    136 
    137 	uint_t	tcl_style;		/* Saved style */
    138 	uint_t	tcl_ltunid;		/* Local Tunnel ID (L2F/L2TP) */
    139 	uint_t	tcl_rtunid;		/* Remote Tunnel ID (L2F/L2TP) */
    140 	uint_t	tcl_lsessid;		/* Local Session ID (minor node) */
    141 	uint_t	tcl_rsessid;		/* Remote Session ID */
    142 	ppptun_atype	tcl_address;
    143 
    144 	int	tcl_unit;		/* PPP unit number (for debug) */
    145 	struct pppstat64 tcl_stats;	/* Standard PPP statistics */
    146 	tcl_kstats_t tcl_kstats;	/* current statistics */
    147 	kstat_t *tcl_ksp;		/* pointer to kstats allocation */
    148 
    149 	zoneid_t tcl_zoneid;
    150 };
    151 
    152 #define	TO_TLL(p) \
    153 	((tunll_t *)((caddr_t)(p) - offsetof(tunll_t, tll_next)))
    154 
    155 #define	TLLF_NOTLOWER		0x00000001	/* never set */
    156 #define	TLLF_CLOSING		0x00000002	/* driver detach initiated */
    157 #define	TLLF_CLOSE_DONE		0x00000004	/* detach sent; waiting */
    158 #define	TLLF_SHUTDOWN_DONE	0x00000008	/* detach done */
    159 
    160 #define	TCLF_ISCLIENT		0x00000001	/* always set */
    161 #define	TCLF_FASTPATH		0x00000004	/* enable fast path recv */
    162 #define	TCLF_DAEMON		0x00000010	/* server side; session 0 */
    163 #define	TCLF_SPEER_DONE		0x00000020	/* SPEER ioctl done */
    164 
    165 #ifdef	__cplusplus
    166 }
    167 #endif
    168 
    169 #endif /* _SPPPTUN_IMPL_H */
    170