arch/um/drivers/slirp.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __UM_SLIRP_H
   3 #define __UM_SLIRP_H
   4
   5 #include "slip_common.h"
   6
   7 #define SLIRP_MAX_ARGS 100
   8 /*
   9  * XXX this next definition is here because I don't understand why this
  10  * initializer doesn't work in slirp_kern.c:
  11  *
  12  *   argv :  { init->argv[ 0 ... SLIRP_MAX_ARGS-1 ] },
  13  *
  14  * or why I can't typecast like this:
  15  *
  16  *   argv :  (char* [SLIRP_MAX_ARGS])(init->argv),
  17  */
  18 struct arg_list_dummy_wrapper { char *argv[SLIRP_MAX_ARGS]; };
  19
  20 struct slirp_data {
  21         void *dev;
  22         struct arg_list_dummy_wrapper argw;
  23         int pid;
  24         int slave;
  25         struct slip_proto slip;
  26 };
  27
  28 extern const struct net_user_info slirp_user_info;
  29
  30 extern int slirp_user_read(int fd, void *buf, int len, struct slirp_data *pri);
  31 extern int slirp_user_write(int fd, void *buf, int len,
  32                             struct slirp_data *pri);
  33
  34 #endif