OpenCloudOS-Kernel/arch/um/drivers/slirp.h

52 lines
1.5 KiB
C

#ifndef __UM_SLIRP_H
#define __UM_SLIRP_H
#define BUF_SIZE 1500
/* two bytes each for a (pathological) max packet of escaped chars + *
* terminating END char + initial END char */
#define ENC_BUF_SIZE (2 * BUF_SIZE + 2)
#define SLIRP_MAX_ARGS 100
/*
* XXX this next definition is here because I don't understand why this
* initializer doesn't work in slirp_kern.c:
*
* argv : { init->argv[ 0 ... SLIRP_MAX_ARGS-1 ] },
*
* or why I can't typecast like this:
*
* argv : (char* [SLIRP_MAX_ARGS])(init->argv),
*/
struct arg_list_dummy_wrapper { char *argv[SLIRP_MAX_ARGS]; };
struct slirp_data {
void *dev;
struct arg_list_dummy_wrapper argw;
int pid;
int slave;
char ibuf[ENC_BUF_SIZE];
char obuf[ENC_BUF_SIZE];
int more; /* more data: do not read fd until ibuf has been drained */
int pos;
int esc;
};
extern struct net_user_info slirp_user_info;
extern int set_umn_addr(int fd, char *addr, char *ptp_addr);
extern int slirp_user_read(int fd, void *buf, int len, struct slirp_data *pri);
extern int slirp_user_write(int fd, void *buf, int len, struct slirp_data *pri);
#endif
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/