sbin/ifconfig/ifconfig.h

   1 /*
   2  * Copyright (c) 1997 Peter Wemm.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed for the FreeBSD Project
  16  *      by Peter Wemm.
  17  * 4. The name of the author may not be used to endorse or promote products
  18  *    derived from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  25  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  26  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  27  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  28  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  * so there!
  33  *
  34  * $FreeBSD$
  35  */
  36
  37 #define __constructor   __attribute__((constructor))
  38
  39 struct afswtch;
  40 struct cmd;
  41
  42 typedef void c_func(const char *cmd, int arg, int s, const struct afswtch *afp);
  43 typedef void c_func2(const char *arg1, const char *arg2, int s, const struct afswtch *afp);
  44
  45 struct cmd {
  46         const char *c_name;
  47         int     c_parameter;
  48 #define NEXTARG         0xffffff        /* has following arg */
  49 #define NEXTARG2        0xfffffe        /* has 2 following args */
  50 #define OPTARG          0xfffffd        /* has optional following arg */
  51         union {
  52                 c_func  *c_func;
  53                 c_func2 *c_func2;
  54         } c_u;
  55         int     c_iscloneop;
  56         struct cmd *c_next;
  57 };
  58 void    cmd_register(struct cmd *);
  59
  60 typedef void callback_func(int s, void *);
  61 void    callback_register(callback_func *, void *);
  62
  63 /*
  64  * Macros for declaring command functions and initializing entries.
  65  */
  66 #define DECL_CMD_FUNC(name, cmd, arg) \
  67         void name(const char *cmd, int arg, int s, const struct afswtch *afp)
  68 #define DECL_CMD_FUNC2(name, arg1, arg2) \
  69         void name(const char *arg1, const char *arg2, int s, const struct afswtch *afp)
  70
  71 #define DEF_CMD(name, param, func)      { name, param, { .c_func = func } }
  72 #define DEF_CMD_ARG(name, func)         { name, NEXTARG, { .c_func = func } }
  73 #define DEF_CMD_OPTARG(name, func)      { name, OPTARG, { .c_func = func } }
  74 #define DEF_CMD_ARG2(name, func)        { name, NEXTARG2, { .c_func2 = func } }
  75 #define DEF_CLONE_CMD(name, param, func) { name, param, { .c_func = func }, 1 }
  76 #define DEF_CLONE_CMD_ARG(name, func)   { name, NEXTARG, { .c_func = func }, 1 }
  77
  78 struct ifaddrs;
  79 struct addrinfo;
  80
  81 enum {
  82         RIDADDR,
  83         ADDR,
  84         MASK,
  85         DSTADDR,
  86 };
  87
  88 struct afswtch {
  89         const char      *af_name;       /* as given on cmd line, e.g. "inet" */
  90         short           af_af;          /* AF_* */
  91         /*
  92          * Status is handled one of two ways; if there is an
  93          * address associated with the interface then the
  94          * associated address family af_status method is invoked
  95          * with the appropriate addressin info.  Otherwise, if
  96          * all possible info is to be displayed and af_other_status
  97          * is defined then it is invoked after all address status
  98          * is presented.
  99          */
 100         void            (*af_status)(int, const struct ifaddrs *);
 101         void            (*af_other_status)(int);
 102                                         /* parse address method */
 103         void            (*af_getaddr)(const char *, int);
 104                                         /* parse prefix method (IPv6) */
 105         void            (*af_getprefix)(const char *, int);
 106         void            (*af_postproc)(int s, const struct afswtch *);
 107         u_long          af_difaddr;     /* set dst if address ioctl */
 108         u_long          af_aifaddr;     /* set if address ioctl */
 109         void            *af_ridreq;     /* */
 110         void            *af_addreq;     /* */
 111         struct afswtch  *af_next;
 112
 113         /* XXX doesn't fit model */
 114         void            (*af_status_tunnel)(int);
 115         void            (*af_settunnel)(int s, struct addrinfo *srcres,
 116                                 struct addrinfo *dstres);
 117 };
 118 void    af_register(struct afswtch *);
 119
 120 struct option {
 121         const char *opt;
 122         const char *opt_usage;
 123         void    (*cb)(const char *arg);
 124         struct option *next;
 125 };
 126 void    opt_register(struct option *);
 127
 128 extern  struct ifreq ifr;
 129 extern  char name[IFNAMSIZ];    /* name of interface */
 130 extern  int allmedia;
 131 extern  int supmedia;
 132 extern  int printkeys;
 133 extern  int newaddr;
 134 extern  int verbose;
 135
 136 void    setifcap(const char *, int value, int s, const struct afswtch *);
 137
 138 void    Perror(const char *cmd);
 139 void    printb(const char *s, unsigned value, const char *bits);
 140
 141 void    ifmaybeload(const char *name);
 142
 143 typedef void clone_callback_func(int, struct ifreq *);
 144 void    clone_setcallback(clone_callback_func *);
 145
 146 /*
 147  * XXX expose this so modules that neeed to know of any pending
 148  * operations on ifmedia can avoid cmd line ordering confusion.
 149  */
 150 struct ifmediareq *ifmedia_getstate(int s);