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thunk.h revision 1.64
      1 /* $NetBSD: thunk.h,v 1.64 2018/06/01 08:04:57 reinoud Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2011 Jared D. McNeill <jmcneill (at) invisible.ca>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _ARCH_USERMODE_INCLUDE_THUNK_H
     30 #define _ARCH_USERMODE_INCLUDE_THUNK_H
     31 
     32 #include <sys/types.h>
     33 #include <sys/time.h>
     34 #include <sys/stat.h>
     35 #include <sys/fcntl.h>
     36 #include <sys/ucontext.h>
     37 #include <sys/signal.h>
     38 
     39 struct thunk_timeval {
     40 	int64_t tv_sec;
     41 	int32_t tv_usec;
     42 };
     43 
     44 struct thunk_itimerval {
     45 	struct thunk_timeval it_interval;
     46 	struct thunk_timeval it_value;
     47 };
     48 
     49 struct thunk_termios {
     50 	uint32_t c_iflag;
     51 	uint32_t c_oflag;
     52 	uint32_t c_cflag;
     53 	uint32_t c_lflag;
     54 	uint8_t c_cc[20];
     55 	int32_t c_ispeed;
     56 	int32_t c_ospeed;
     57 };
     58 
     59 #define THUNK_MAP_ANON		0x0001
     60 #define THUNK_MAP_FIXED		0x0002
     61 #define THUNK_MAP_FILE		0x0004
     62 #define THUNK_MAP_SHARED	0x0010
     63 #define THUNK_MAP_PRIVATE	0x0020
     64 
     65 #define THUNK_PROT_NONE		0x00
     66 #define THUNK_PROT_READ		0x01
     67 #define THUNK_PROT_WRITE	0x02
     68 #define THUNK_PROT_EXEC		0x04
     69 
     70 #define THUNK_MADV_NORMAL	0x01
     71 #define THUNK_MADV_RANDOM	0x02
     72 #define THUNK_MADV_SEQUENTIAL	0x04
     73 #define THUNK_MADV_WILLNEED	0x08
     74 #define THUNK_MADV_DONTNEED	0x10
     75 #define THUNK_MADV_FREE		0x20
     76 
     77 
     78 struct aiocb;
     79 
     80 void	thunk_printf_debug(const char *fmt, ...) __attribute__((__format__(__printf__, 1, 2)));
     81 void	thunk_printf(const char *fmt, ...) __attribute__((__format__(__printf__, 1, 2)));
     82 
     83 int	thunk_syscallemu_init(void *, void *);
     84 
     85 int	thunk_setitimer(int, const struct thunk_itimerval *, struct thunk_itimerval *);
     86 int	thunk_gettimeofday(struct thunk_timeval *, void *);
     87 unsigned int thunk_getcounter(void);
     88 long	thunk_clock_getres_monotonic(void);
     89 int	thunk_usleep(useconds_t);
     90 
     91 timer_t	thunk_timer_attach(void);
     92 int	thunk_timer_start(timer_t, int);
     93 int	thunk_timer_getoverrun(timer_t);
     94 
     95 void	thunk_exit(int);
     96 void	thunk_abort(void);
     97 
     98 int	thunk_geterrno(void);
     99 void	thunk_seterrno(int err);
    100 
    101 int	thunk_getcontext(ucontext_t *);
    102 int	thunk_setcontext(const ucontext_t *);
    103 void	thunk_makecontext(ucontext_t *ucp, void (*func)(void),
    104 		int nargs, void *arg1, void *arg2, void *arg3, void *arg4);
    105 int	thunk_swapcontext(ucontext_t *, ucontext_t *);
    106 
    107 int	thunk_tcgetattr(int, struct thunk_termios *);
    108 int	thunk_tcsetattr(int, int, const struct thunk_termios *);
    109 
    110 int	thunk_set_stdin_sigio(int);
    111 int	thunk_pollchar(void);
    112 int	thunk_getchar(void);
    113 void	thunk_putchar(int);
    114 
    115 int	thunk_execv(const char *, char * const []);
    116 
    117 int	thunk_open(const char *, int, mode_t);
    118 int	thunk_close(int);
    119 int	thunk_fstat_getsize(int, off_t *, ssize_t *);
    120 ssize_t	thunk_pread(int, void *, size_t, off_t);
    121 ssize_t	thunk_pwrite(int, const void *, size_t, off_t);
    122 ssize_t	thunk_read(int, void *, size_t);
    123 ssize_t	thunk_write(int, const void *, size_t);
    124 int	thunk_fsync(int);
    125 int	thunk_mkstemp(char *);
    126 int	thunk_unlink(const char *);
    127 pid_t	thunk_getpid(void);
    128 
    129 int	thunk_sigaction(int, const struct sigaction *, struct sigaction *);
    130 int	thunk_sigaltstack(const stack_t *, stack_t *);
    131 void	thunk_signal(int, void (*)(int));
    132 int	thunk_sigblock(int);
    133 int	thunk_sigunblock(int);
    134 int	thunk_sigemptyset(sigset_t *sa_mask);
    135 int	thunk_sigfillset(sigset_t *sa_mask);
    136 void	thunk_sigaddset(sigset_t *sa_mask, int sig);
    137 int	thunk_sigprocmask(int how, const sigset_t * set, sigset_t *oset);
    138 int	thunk_atexit(void (*function)(void));
    139 
    140 int	thunk_aio_read(struct aiocb *);
    141 int	thunk_aio_write(struct aiocb *);
    142 int	thunk_aio_error(const struct aiocb *);
    143 int	thunk_aio_return(struct aiocb *);
    144 
    145 void *	thunk_malloc(size_t len);
    146 void 	thunk_free(void *addr);
    147 void *	thunk_sbrk(intptr_t len);
    148 void *	thunk_mmap(void *addr, size_t len, int prot, int flags, int fd, off_t offset);
    149 int	thunk_munmap(void *addr, size_t len);
    150 int	thunk_mprotect(void *addr, size_t len, int prot);
    151 int	thunk_madvise(void *addr, size_t len, int behav);
    152 int	thunk_posix_memalign(void **, size_t, size_t);
    153 
    154 int	thunk_idle(void);
    155 
    156 char *	thunk_getenv(const char *);
    157 vaddr_t	thunk_get_vm_min_address(void);
    158 
    159 int	thunk_getcpuinfo(char *, size_t *);
    160 
    161 int	thunk_getmachine(char *, size_t, char *, size_t);
    162 
    163 int	thunk_setown(int);
    164 
    165 int	thunk_open_tap(const char *);
    166 int	thunk_pollin_tap(int, int);
    167 int	thunk_pollout_tap(int, int);
    168 
    169 typedef struct {
    170 	unsigned int		sample_rate;
    171 	unsigned int		precision;
    172 	unsigned int		validbits;
    173 	unsigned int		channels;
    174 } thunk_audio_config_t;
    175 
    176 int	thunk_audio_open(const char *);
    177 int	thunk_audio_close(int);
    178 int	thunk_audio_drain(int);
    179 int	thunk_audio_config(int, const thunk_audio_config_t *,
    180 			   const thunk_audio_config_t *);
    181 int	thunk_audio_pollout(int);
    182 int	thunk_audio_pollin(int);
    183 ssize_t	thunk_audio_write(int, const void *, size_t);
    184 ssize_t	thunk_audio_read(int, void *, size_t);
    185 
    186 typedef enum {
    187 	/* client -> server */
    188 	THUNK_RFB_SET_PIXEL_FORMAT = 0,
    189 	THUNK_RFB_SET_ENCODINGS = 2,
    190 	THUNK_RFB_FRAMEBUFFER_UPDATE_REQUEST = 3,
    191 	THUNK_RFB_KEY_EVENT = 4,
    192 	THUNK_RFB_POINTER_EVENT = 5,
    193 	THUNK_RFB_CLIENT_CUT_TEXT = 6,
    194 } thunk_rfb_message_t;
    195 
    196 typedef struct {
    197 	thunk_rfb_message_t	message_type;
    198 	union {
    199 		struct {
    200 			uint8_t		down_flag;
    201 			uint32_t	keysym;
    202 		} key_event;
    203 		struct {
    204 			uint8_t		button_mask;
    205 			uint16_t	absx;
    206 			uint16_t	absy;
    207 		} pointer_event;
    208 	} data;
    209 } thunk_rfb_event_t;
    210 
    211 
    212 typedef struct {
    213 	uint8_t			enc;
    214 	uint16_t		x, y, w, h;
    215 	uint16_t		srcx, srcy;
    216 	uint8_t			pixel[4];
    217 } thunk_rfb_update_t;
    218 #define THUNK_RFB_TYPE_RAW	0
    219 #define THUNK_RFB_TYPE_COPYRECT	1
    220 #define THUNK_RFB_TYPE_RRE	2		/* rectangle fill */
    221 
    222 #define THUNK_RFB_QUEUELEN	128
    223 
    224 typedef struct {
    225 	int			sockfd;
    226 	int			clientfd;
    227 	thunk_rfb_event_t	event;
    228 
    229 	bool			connected;
    230 
    231 	uint16_t		width;
    232 	uint16_t		height;
    233 	uint8_t			depth;
    234 	char			name[64];
    235 	uint8_t			*framebuf;
    236 
    237 	bool			schedule_bell;
    238 	unsigned int		nupdates;
    239 	unsigned int		first_mergable;
    240 	thunk_rfb_update_t	update[THUNK_RFB_QUEUELEN];
    241 } thunk_rfb_t;
    242 
    243 int	thunk_rfb_open(thunk_rfb_t *, uint16_t);
    244 int	thunk_rfb_poll(thunk_rfb_t *, thunk_rfb_event_t *);
    245 void	thunk_rfb_bell(thunk_rfb_t *);
    246 void	thunk_rfb_update(thunk_rfb_t *, int, int, int, int);
    247 void	thunk_rfb_copyrect(thunk_rfb_t *, int, int, int, int, int, int);
    248 void	thunk_rfb_fillrect(thunk_rfb_t *, int, int, int, int, uint8_t *);
    249 
    250 #endif /* !_ARCH_USERMODE_INCLUDE_THUNK_H */
    251