usr/src/uts/common/io/ppp/sppptun/sppptun_impl.h

   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 */