xref: /OK3568_Linux_fs/kernel/arch/um/drivers/slirp.h (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef __UM_SLIRP_H
3*4882a593Smuzhiyun #define __UM_SLIRP_H
4*4882a593Smuzhiyun 
5*4882a593Smuzhiyun #include "slip_common.h"
6*4882a593Smuzhiyun 
7*4882a593Smuzhiyun #define SLIRP_MAX_ARGS 100
8*4882a593Smuzhiyun /*
9*4882a593Smuzhiyun  * XXX this next definition is here because I don't understand why this
10*4882a593Smuzhiyun  * initializer doesn't work in slirp_kern.c:
11*4882a593Smuzhiyun  *
12*4882a593Smuzhiyun  *   argv :  { init->argv[ 0 ... SLIRP_MAX_ARGS-1 ] },
13*4882a593Smuzhiyun  *
14*4882a593Smuzhiyun  * or why I can't typecast like this:
15*4882a593Smuzhiyun  *
16*4882a593Smuzhiyun  *   argv :  (char* [SLIRP_MAX_ARGS])(init->argv),
17*4882a593Smuzhiyun  */
18*4882a593Smuzhiyun struct arg_list_dummy_wrapper { char *argv[SLIRP_MAX_ARGS]; };
19*4882a593Smuzhiyun 
20*4882a593Smuzhiyun struct slirp_data {
21*4882a593Smuzhiyun 	void *dev;
22*4882a593Smuzhiyun 	struct arg_list_dummy_wrapper argw;
23*4882a593Smuzhiyun 	int pid;
24*4882a593Smuzhiyun 	int slave;
25*4882a593Smuzhiyun 	struct slip_proto slip;
26*4882a593Smuzhiyun };
27*4882a593Smuzhiyun 
28*4882a593Smuzhiyun extern const struct net_user_info slirp_user_info;
29*4882a593Smuzhiyun 
30*4882a593Smuzhiyun extern int slirp_user_read(int fd, void *buf, int len, struct slirp_data *pri);
31*4882a593Smuzhiyun extern int slirp_user_write(int fd, void *buf, int len,
32*4882a593Smuzhiyun 			    struct slirp_data *pri);
33*4882a593Smuzhiyun 
34*4882a593Smuzhiyun #endif
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