1 /*-
2 * Copyright (c) 2004 Tim J. Robbins
3 * Copyright (c) 2001 Doug Rabson
4 * Copyright (c) 1994-1996 Søren Schmidt
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 * in this position and unchanged.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 *
30 * $FreeBSD: releng/11.2/sys/amd64/linux32/linux.h 331722 2018-03-29 02:50:57Z eadler $
31 */
32
33 #ifndef _AMD64_LINUX_H_
34 #define _AMD64_LINUX_H_
35
36 #include <compat/linux/linux.h>
37 #include <amd64/linux32/linux32_syscall.h>
38
39 /*
40 * debugging support
41 */
42 extern u_char linux_debug_map[];
43 #define ldebug(name) isclr(linux_debug_map, LINUX32_SYS_linux_ ## name)
44 #define ARGS(nm, fmt) "linux(%ld/%ld): "#nm"("fmt")\n", \
45 (long)td->td_proc->p_pid, (long)td->td_tid
46 #define LMSG(fmt) "linux(%ld/%ld): "fmt"\n", \
47 (long)td->td_proc->p_pid, (long)td->td_tid
48 #define LINUX_DTRACE linuxulator32
49
50 #define LINUX32_MAXUSER ((1ul << 32) - PAGE_SIZE)
51 #define LINUX32_SHAREDPAGE (LINUX32_MAXUSER - PAGE_SIZE)
52 #define LINUX32_USRSTACK LINUX32_SHAREDPAGE
53
54 /* XXX 16 = sizeof(linux32_ps_strings) */
55 #define LINUX32_PS_STRINGS (LINUX32_USRSTACK - 16)
56 #define LINUX32_MAXDSIZ (512 * 1024 * 1024) /* 512MB */
57 #define LINUX32_MAXSSIZ (64 * 1024 * 1024) /* 64MB */
58 #define LINUX32_MAXVMEM 0 /* Unlimited */
59
60 #define PTRIN(v) (void *)(uintptr_t)(v)
61 #define PTROUT(v) (l_uintptr_t)(uintptr_t)(v)
62
63 #define CP(src,dst,fld) do { (dst).fld = (src).fld; } while (0)
64 #define CP2(src,dst,sfld,dfld) do { (dst).dfld = (src).sfld; } while (0)
65 #define PTRIN_CP(src,dst,fld) \
66 do { (dst).fld = PTRIN((src).fld); } while (0)
67
68 /*
69 * Provide a separate set of types for the Linux types.
70 */
71 typedef int l_int;
72 typedef int32_t l_long;
73 typedef int64_t l_longlong;
74 typedef short l_short;
75 typedef unsigned int l_uint;
76 typedef uint32_t l_ulong;
77 typedef uint64_t l_ulonglong;
78 typedef unsigned short l_ushort;
79
80 typedef l_ulong l_uintptr_t;
81 typedef l_long l_clock_t;
82 typedef l_int l_daddr_t;
83 typedef l_ushort l_dev_t;
84 typedef l_uint l_gid_t;
85 typedef l_ushort l_gid16_t;
86 typedef l_ulong l_ino_t;
87 typedef l_int l_key_t;
88 typedef l_longlong l_loff_t;
89 typedef l_ushort l_mode_t;
90 typedef l_long l_off_t;
91 typedef l_int l_pid_t;
92 typedef l_uint l_size_t;
93 typedef l_long l_suseconds_t;
94 typedef l_long l_time_t;
95 typedef l_uint l_uid_t;
96 typedef l_ushort l_uid16_t;
97 typedef l_int l_timer_t;
98 typedef l_int l_mqd_t;
99 typedef l_ulong l_fd_mask;
100
101 typedef struct {
102 l_int val[2];
103 } __packed l_fsid_t;
104
105 typedef struct {
106 l_time_t tv_sec;
107 l_suseconds_t tv_usec;
108 } l_timeval;
109
110 #define l_fd_set fd_set
111
112 /*
113 * Miscellaneous
114 */
115 #define LINUX_AT_COUNT 20 /* Count of used aux entry types.
116 * Keep this synchronized with
117 * elf_linux_fixup() code.
118 */
119 struct l___sysctl_args
120 {
121 l_uintptr_t name;
122 l_int nlen;
123 l_uintptr_t oldval;
124 l_uintptr_t oldlenp;
125 l_uintptr_t newval;
126 l_size_t newlen;
127 l_ulong __spare[4];
128 } __packed;
129
130 /* Resource limits */
131 #define LINUX_RLIMIT_CPU 0
132 #define LINUX_RLIMIT_FSIZE 1
133 #define LINUX_RLIMIT_DATA 2
134 #define LINUX_RLIMIT_STACK 3
135 #define LINUX_RLIMIT_CORE 4
136 #define LINUX_RLIMIT_RSS 5
137 #define LINUX_RLIMIT_NPROC 6
138 #define LINUX_RLIMIT_NOFILE 7
139 #define LINUX_RLIMIT_MEMLOCK 8
140 #define LINUX_RLIMIT_AS 9 /* Address space limit */
141
142 #define LINUX_RLIM_NLIMITS 10
143
144 struct l_rlimit {
145 l_ulong rlim_cur;
146 l_ulong rlim_max;
147 } __packed;
148
149 struct l_rusage {
150 l_timeval ru_utime;
151 l_timeval ru_stime;
152 l_long ru_maxrss;
153 l_long ru_ixrss;
154 l_long ru_idrss;
155 l_long ru_isrss;
156 l_long ru_minflt;
157 l_long ru_majflt;
158 l_long ru_nswap;
159 l_long ru_inblock;
160 l_long ru_oublock;
161 l_long ru_msgsnd;
162 l_long ru_msgrcv;
163 l_long ru_nsignals;
164 l_long ru_nvcsw;
165 l_long ru_nivcsw;
166 } __packed;
167
168 struct l_mmap_argv {
169 l_uintptr_t addr;
170 l_size_t len;
171 l_int prot;
172 l_int flags;
173 l_int fd;
174 l_ulong pgoff;
175 };
176
177 /*
178 * stat family of syscalls
179 */
180 struct l_timespec {
181 l_time_t tv_sec;
182 l_long tv_nsec;
183 } __packed;
184
185 struct l_newstat {
186 l_ushort st_dev;
187 l_ushort __pad1;
188 l_ulong st_ino;
189 l_ushort st_mode;
190 l_ushort st_nlink;
191 l_ushort st_uid;
192 l_ushort st_gid;
193 l_ushort st_rdev;
194 l_ushort __pad2;
195 l_ulong st_size;
196 l_ulong st_blksize;
197 l_ulong st_blocks;
198 struct l_timespec st_atim;
199 struct l_timespec st_mtim;
200 struct l_timespec st_ctim;
201 l_ulong __unused4;
202 l_ulong __unused5;
203 } __packed;
204
205 struct l_stat {
206 l_ushort st_dev;
207 l_ulong st_ino;
208 l_ushort st_mode;
209 l_ushort st_nlink;
210 l_ushort st_uid;
211 l_ushort st_gid;
212 l_ushort st_rdev;
213 l_long st_size;
214 struct l_timespec st_atim;
215 struct l_timespec st_mtim;
216 struct l_timespec st_ctim;
217 l_long st_blksize;
218 l_long st_blocks;
219 l_ulong st_flags;
220 l_ulong st_gen;
221 };
222
223 struct l_stat64 {
224 l_ushort st_dev;
225 u_char __pad0[10];
226 l_ulong __st_ino;
227 l_uint st_mode;
228 l_uint st_nlink;
229 l_ulong st_uid;
230 l_ulong st_gid;
231 l_ushort st_rdev;
232 u_char __pad3[10];
233 l_longlong st_size;
234 l_ulong st_blksize;
235 l_ulong st_blocks;
236 l_ulong __pad4;
237 struct l_timespec st_atim;
238 struct l_timespec st_mtim;
239 struct l_timespec st_ctim;
240 l_ulonglong st_ino;
241 } __packed;
242
243 struct l_statfs64 {
244 l_int f_type;
245 l_int f_bsize;
246 uint64_t f_blocks;
247 uint64_t f_bfree;
248 uint64_t f_bavail;
249 uint64_t f_files;
250 uint64_t f_ffree;
251 l_fsid_t f_fsid;
252 l_int f_namelen;
253 l_int f_frsize;
254 l_int f_flags;
255 l_int f_spare[4];
256 } __packed;
257
258 /* sigaction flags */
259 #define LINUX_SA_NOCLDSTOP 0x00000001
260 #define LINUX_SA_NOCLDWAIT 0x00000002
261 #define LINUX_SA_SIGINFO 0x00000004
262 #define LINUX_SA_RESTORER 0x04000000
263 #define LINUX_SA_ONSTACK 0x08000000
264 #define LINUX_SA_RESTART 0x10000000
265 #define LINUX_SA_INTERRUPT 0x20000000
266 #define LINUX_SA_NOMASK 0x40000000
267 #define LINUX_SA_ONESHOT 0x80000000
268
269 /* sigprocmask actions */
270 #define LINUX_SIG_BLOCK 0
271 #define LINUX_SIG_UNBLOCK 1
272 #define LINUX_SIG_SETMASK 2
273
274 /* sigaltstack */
275 #define LINUX_MINSIGSTKSZ 2048
276
277 typedef l_uintptr_t l_handler_t;
278 typedef l_ulong l_osigset_t;
279
280 typedef struct {
281 l_handler_t lsa_handler;
282 l_osigset_t lsa_mask;
283 l_ulong lsa_flags;
284 l_uintptr_t lsa_restorer;
285 } __packed l_osigaction_t;
286
287 typedef struct {
288 l_handler_t lsa_handler;
289 l_ulong lsa_flags;
290 l_uintptr_t lsa_restorer;
291 l_sigset_t lsa_mask;
292 } __packed l_sigaction_t;
293
294 typedef struct {
295 l_uintptr_t ss_sp;
296 l_int ss_flags;
297 l_size_t ss_size;
298 } __packed l_stack_t;
299
300 /* The Linux sigcontext, pretty much a standard 386 trapframe. */
301 struct l_sigcontext {
302 l_uint sc_gs;
303 l_uint sc_fs;
304 l_uint sc_es;
305 l_uint sc_ds;
306 l_uint sc_edi;
307 l_uint sc_esi;
308 l_uint sc_ebp;
309 l_uint sc_esp;
310 l_uint sc_ebx;
311 l_uint sc_edx;
312 l_uint sc_ecx;
313 l_uint sc_eax;
314 l_uint sc_trapno;
315 l_uint sc_err;
316 l_uint sc_eip;
317 l_uint sc_cs;
318 l_uint sc_eflags;
319 l_uint sc_esp_at_signal;
320 l_uint sc_ss;
321 l_uint sc_387;
322 l_uint sc_mask;
323 l_uint sc_cr2;
324 } __packed;
325
326 struct l_ucontext {
327 l_ulong uc_flags;
328 l_uintptr_t uc_link;
329 l_stack_t uc_stack;
330 struct l_sigcontext uc_mcontext;
331 l_sigset_t uc_sigmask;
332 } __packed;
333
334 #define LINUX_SI_MAX_SIZE 128
335 #define LINUX_SI_PAD_SIZE ((LINUX_SI_MAX_SIZE/sizeof(l_int)) - 3)
336
337 typedef union l_sigval {
338 l_int sival_int;
339 l_uintptr_t sival_ptr;
340 } l_sigval_t;
341
342 typedef struct l_siginfo {
343 l_int lsi_signo;
344 l_int lsi_errno;
345 l_int lsi_code;
346 union {
347 l_int _pad[LINUX_SI_PAD_SIZE];
348
349 struct {
350 l_pid_t _pid;
351 l_uid_t _uid;
352 } __packed _kill;
353
354 struct {
355 l_timer_t _tid;
356 l_int _overrun;
357 char _pad[sizeof(l_uid_t) - sizeof(l_int)];
358 l_sigval_t _sigval;
359 l_int _sys_private;
360 } __packed _timer;
361
362 struct {
363 l_pid_t _pid; /* sender's pid */
364 l_uid_t _uid; /* sender's uid */
365 l_sigval_t _sigval;
366 } __packed _rt;
367
368 struct {
369 l_pid_t _pid; /* which child */
370 l_uid_t _uid; /* sender's uid */
371 l_int _status; /* exit code */
372 l_clock_t _utime;
373 l_clock_t _stime;
374 } __packed _sigchld;
375
376 struct {
377 l_uintptr_t _addr; /* Faulting insn/memory ref. */
378 } __packed _sigfault;
379
380 struct {
381 l_long _band; /* POLL_IN,POLL_OUT,POLL_MSG */
382 l_int _fd;
383 } __packed _sigpoll;
384 } _sifields;
385 } __packed l_siginfo_t;
386
387 #define lsi_pid _sifields._kill._pid
388 #define lsi_uid _sifields._kill._uid
389 #define lsi_tid _sifields._timer._tid
390 #define lsi_overrun _sifields._timer._overrun
391 #define lsi_sys_private _sifields._timer._sys_private
392 #define lsi_status _sifields._sigchld._status
393 #define lsi_utime _sifields._sigchld._utime
394 #define lsi_stime _sifields._sigchld._stime
395 #define lsi_value _sifields._rt._sigval
396 #define lsi_int _sifields._rt._sigval.sival_int
397 #define lsi_ptr _sifields._rt._sigval.sival_ptr
398 #define lsi_addr _sifields._sigfault._addr
399 #define lsi_band _sifields._sigpoll._band
400 #define lsi_fd _sifields._sigpoll._fd
401
402 struct l_fpreg {
403 u_int16_t significand[4];
404 u_int16_t exponent;
405 } __packed;
406
407 struct l_fpxreg {
408 u_int16_t significand[4];
409 u_int16_t exponent;
410 u_int16_t padding[3];
411 } __packed;
412
413 struct l_xmmreg {
414 u_int32_t element[4];
415 } __packed;
416
417 struct l_fpstate {
418 /* Regular FPU environment */
419 u_int32_t cw;
420 u_int32_t sw;
421 u_int32_t tag;
422 u_int32_t ipoff;
423 u_int32_t cssel;
424 u_int32_t dataoff;
425 u_int32_t datasel;
426 struct l_fpreg _st[8];
427 u_int16_t status;
428 u_int16_t magic; /* 0xffff = regular FPU data */
429
430 /* FXSR FPU environment */
431 u_int32_t _fxsr_env[6]; /* env is ignored. */
432 u_int32_t mxcsr;
433 u_int32_t reserved;
434 struct l_fpxreg _fxsr_st[8]; /* reg data is ignored. */
435 struct l_xmmreg _xmm[8];
436 u_int32_t padding[56];
437 } __packed;
438
439 /*
440 * We make the stack look like Linux expects it when calling a signal
441 * handler, but use the BSD way of calling the handler and sigreturn().
442 * This means that we need to pass the pointer to the handler too.
443 * It is appended to the frame to not interfere with the rest of it.
444 */
445 struct l_sigframe {
446 l_int sf_sig;
447 struct l_sigcontext sf_sc;
448 struct l_fpstate sf_fpstate;
449 l_uint sf_extramask[1];
450 l_handler_t sf_handler;
451 } __packed;
452
453 struct l_rt_sigframe {
454 l_int sf_sig;
455 l_uintptr_t sf_siginfo;
456 l_uintptr_t sf_ucontext;
457 l_siginfo_t sf_si;
458 struct l_ucontext sf_sc;
459 l_handler_t sf_handler;
460 } __packed;
461
462 /*
463 * arch specific open/fcntl flags
464 */
465 #define LINUX_F_GETLK64 12
466 #define LINUX_F_SETLK64 13
467 #define LINUX_F_SETLKW64 14
468
469 union l_semun {
470 l_int val;
471 l_uintptr_t buf;
472 l_uintptr_t array;
473 l_uintptr_t __buf;
474 l_uintptr_t __pad;
475 } __packed;
476
477 struct l_sockaddr {
478 l_ushort sa_family;
479 char sa_data[14];
480 } __packed;
481
482 struct l_ifmap {
483 l_ulong mem_start;
484 l_ulong mem_end;
485 l_ushort base_addr;
486 u_char irq;
487 u_char dma;
488 u_char port;
489 } __packed;
490
491 #define LINUX_IFHWADDRLEN 6
492 #define LINUX_IFNAMSIZ 16
493
494 struct l_ifreq {
495 union {
496 char ifrn_name[LINUX_IFNAMSIZ];
497 } ifr_ifrn;
498
499 union {
500 struct l_sockaddr ifru_addr;
501 struct l_sockaddr ifru_dstaddr;
502 struct l_sockaddr ifru_broadaddr;
503 struct l_sockaddr ifru_netmask;
504 struct l_sockaddr ifru_hwaddr;
505 l_short ifru_flags[1];
506 l_int ifru_ivalue;
507 l_int ifru_mtu;
508 struct l_ifmap ifru_map;
509 char ifru_slave[LINUX_IFNAMSIZ];
510 l_uintptr_t ifru_data;
511 } ifr_ifru;
512 } __packed;
513
514 #define ifr_name ifr_ifrn.ifrn_name /* Interface name */
515 #define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */
516 #define ifr_ifindex ifr_ifru.ifru_ivalue /* Interface index */
517
518 struct l_ifconf {
519 int ifc_len;
520 union {
521 l_uintptr_t ifcu_buf;
522 l_uintptr_t ifcu_req;
523 } ifc_ifcu;
524 } __packed;
525
526 #define ifc_buf ifc_ifcu.ifcu_buf
527 #define ifc_req ifc_ifcu.ifcu_req
528
529 /*
530 * poll()
531 */
532 #define LINUX_POLLIN 0x0001
533 #define LINUX_POLLPRI 0x0002
534 #define LINUX_POLLOUT 0x0004
535 #define LINUX_POLLERR 0x0008
536 #define LINUX_POLLHUP 0x0010
537 #define LINUX_POLLNVAL 0x0020
538 #define LINUX_POLLRDNORM 0x0040
539 #define LINUX_POLLRDBAND 0x0080
540 #define LINUX_POLLWRNORM 0x0100
541 #define LINUX_POLLWRBAND 0x0200
542 #define LINUX_POLLMSG 0x0400
543
544 struct l_pollfd {
545 l_int fd;
546 l_short events;
547 l_short revents;
548 } __packed;
549
550 struct l_user_desc {
551 l_uint entry_number;
552 l_uint base_addr;
553 l_uint limit;
554 l_uint seg_32bit:1;
555 l_uint contents:2;
556 l_uint read_exec_only:1;
557 l_uint limit_in_pages:1;
558 l_uint seg_not_present:1;
559 l_uint useable:1;
560 };
561
562 #define LINUX_LOWERWORD 0x0000ffff
563
564 /*
565 * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h.
566 * These convert Linux user space descriptor to machine one.
567 */
568 #define LINUX_LDT_entry_a(info) \
569 ((((info)->base_addr & LINUX_LOWERWORD) << 16) | \
570 ((info)->limit & LINUX_LOWERWORD))
571
572 #define LINUX_ENTRY_B_READ_EXEC_ONLY 9
573 #define LINUX_ENTRY_B_CONTENTS 10
574 #define LINUX_ENTRY_B_SEG_NOT_PRESENT 15
575 #define LINUX_ENTRY_B_BASE_ADDR 16
576 #define LINUX_ENTRY_B_USEABLE 20
577 #define LINUX_ENTRY_B_SEG32BIT 22
578 #define LINUX_ENTRY_B_LIMIT 23
579
580 #define LINUX_LDT_entry_b(info) \
581 (((info)->base_addr & 0xff000000) | \
582 ((info)->limit & 0xf0000) | \
583 ((info)->contents << LINUX_ENTRY_B_CONTENTS) | \
584 (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) | \
585 (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) | \
586 (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) | \
587 ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) | \
588 ((info)->useable << LINUX_ENTRY_B_USEABLE) | \
589 ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000)
590
591 #define LINUX_LDT_empty(info) \
592 ((info)->base_addr == 0 && \
593 (info)->limit == 0 && \
594 (info)->contents == 0 && \
595 (info)->seg_not_present == 1 && \
596 (info)->read_exec_only == 1 && \
597 (info)->seg_32bit == 0 && \
598 (info)->limit_in_pages == 0 && \
599 (info)->useable == 0)
600
601 /*
602 * Macros for converting segments.
603 * They do the same as those in arch/i386/kernel/process.c in Linux.
604 */
605 #define LINUX_GET_BASE(desc) \
606 ((((desc)->a >> 16) & LINUX_LOWERWORD) | \
607 (((desc)->b << 16) & 0x00ff0000) | \
608 ((desc)->b & 0xff000000))
609
610 #define LINUX_GET_LIMIT(desc) \
611 (((desc)->a & LINUX_LOWERWORD) | \
612 ((desc)->b & 0xf0000))
613
614 #define LINUX_GET_32BIT(desc) \
615 (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1)
616 #define LINUX_GET_CONTENTS(desc) \
617 (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3)
618 #define LINUX_GET_WRITABLE(desc) \
619 (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1)
620 #define LINUX_GET_LIMIT_PAGES(desc) \
621 (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1)
622 #define LINUX_GET_PRESENT(desc) \
623 (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1)
624 #define LINUX_GET_USEABLE(desc) \
625 (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1)
626
627 struct iovec;
628 struct uio;
629
630 struct l_iovec32 {
631 uint32_t iov_base;
632 l_size_t iov_len;
633 };
634
635 int linux32_copyiniov(struct l_iovec32 *iovp32, l_ulong iovcnt,
636 struct iovec **iovp, int error);
637 int linux32_copyinuio(struct l_iovec32 *iovp, l_ulong iovcnt,
638 struct uio **uiop);
639 int linux_copyout_rusage(struct rusage *ru, void *uaddr);
640
641 /* robust futexes */
642 struct linux_robust_list {
643 l_uintptr_t next;
644 };
645
646 struct linux_robust_list_head {
647 struct linux_robust_list list;
648 l_long futex_offset;
649 l_uintptr_t pending_list;
650 };
651
652 #endif /* !_AMD64_LINUX_H_ */
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