Dmitry V. Levin
d54388e1ce
When umoven_func invocation fails to fetch data, it prints the faulty address. If this happens to a subsequent umoven_func invocation, the printed address may be undistinguishable from a valid data printed by print_func, e.g. when the data is printed in a numeric form like [0x1, 0x2, 0x3, 0xdefaced]. Fix this source of confusion by moving the printing of the faulty address from umoven_func to print_array itself. This change renames umoven_func to tfetch_mem_func and changes its semantics, so that - tfetch_mem_func never prints anything; - tfetch_mem_func returns true if the fetch succeeded, and false otherwise. * defs.h (print_array): Replace umoven_func argument with tfetch_mem_func. * util.c (print_array): Replace umoven_func argument with tfetch_mem_func, document expected tfetch_mem_func return value semantics. When tfetch_mem_func returns false, print either addr or "... /* addr */" depending on the context (inside the array or not). * bpf.c (print_ebpf_prog, print_bpf_prog_info, BEGIN_BPF_CMD_DECODER(BPF_PROG_QUERY)): Replace umoven_or_printaddr argument of print_array with tfetch_mem. * bpf_filter.c (print_bpf_fprog): Likewise. * btrfs.c (btrfs_print_logical_ino_container, btrfs_print_ino_path_container, btrfs_print_qgroup_inherit, btrfs_ioctl): Likewise. * dm.c (dm_decode_dm_target_deps): Likewise. * epoll.c (epoll_wait_common): Likewise. * file_ioctl.c (file_ioctl): Likewise. * ipc_sem.c (tprint_sembuf_array): Likewise. * kexec.c (print_kexec_segments): Likewise. * mem.c (SYS_FUNC(subpage_prot)): Likewise. * net.c (print_getsockopt): Likewise. * netlink.c (decode_nlmsgerr_attr_cookie): Likewise. * netlink_netlink_diag.c (decode_netlink_diag_groups): Likewise. * netlink_packet_diag.c (decode_packet_diag_mclist): Likewise. * netlink_unix_diag.c (decode_unix_diag_inode): Likewise. * nlattr.c (decode_nla_meminfo): Likewise. * numa.c (print_nodemask, SYS_FUNC(move_pages), * perf_ioctl.c (perf_ioctl_query_bpf): Likewise. * poll.c (decode_poll_entering): Likewise. * printsiginfo.c (print_siginfo_array): Likewise. * rtnl_tc.c (decode_tca_stab_data): Likewise. * sock.c (decode_ifconf): Likewise. * uid.c (print_groups): Likewise. * io.c (SYS_FUNC(io_submit), SYS_FUNC(io_getevents)): Replace umoven_or_printaddr argument of print_array with tfetch_mem. (tprint_iov_upto): Replace umoven_or_printaddr_ignore_syserror with tfetch_mem_ignore_syserror. * v4l2.c (print_v4l2_format_fmt): Replace umoven_or_printaddr argument of print_array with tfetch_mem. (print_v4l2_ext_controls): Replace umoven_or_printaddr_ignore_syserror with tfetch_mem_ignore_syserror. * mmsghdr.c (fetch_struct_mmsghdr_or_printaddr): Rename to fetch_struct_mmsghdr_for_print, do not print address, return bool. (decode_mmsgvec): Replace fetch_struct_mmsghdr_or_printaddr with fetch_struct_mmsghdr_for_print. * tests/aio.c (main): Update expected output. * tests/bpf.c (print_BPF_PROG_QUERY_attr5): Likewise. * tests/ioctl_perf-success.c (main): Likewise. * tests/ioctl_v4l2.c (main): Update expected output. * tests/kexec_load.c (main): Likewise. * tests/mmsg_name.c (test_mmsg_name): Update expected output. * tests/move_pages.c (print_page_array, print_node_array): Likewise. * tests/poll.c (print_pollfd_array_entering): Likewise. * tests/preadv-pwritev.c (main): Likewise. * tests/preadv2-pwritev2.c (dumpio): Likewise. * tests/process_vm_readv_writev.c (print_iov): Likewise. * tests/pwritev.c (print_iovec): Likewise. * tests/readv.c (main): Likewise. * tests/seccomp-filter-v.c * tests/semop.c (main): Likewise. * tests/set_mempolicy.c (print_nodes): Likewise. * tests/setgroups.c (main): Likewise. * tests/test_nlattr.h (print_nlattr) Likewise. Co-Authored-by: Eugene Syromyatnikov <evgsyr@gmail.com>
1102 lines
28 KiB
C
1102 lines
28 KiB
C
/*
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* Copyright (c) 2014 Philippe De Muyter <phdm@macqel.be>
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* Copyright (c) 2014 William Manley <will@williammanley.net>
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* Copyright (c) 2011 Peter Zotov <whitequark@whitequark.org>
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* Copyright (c) 2014-2018 The strace developers.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "defs.h"
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#include <stdint.h>
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#include <linux/ioctl.h>
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#include <linux/types.h>
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#include <linux/videodev2.h>
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#include DEF_MPERS_TYPE(struct_v4l2_buffer)
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#include DEF_MPERS_TYPE(struct_v4l2_clip)
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#ifdef VIDIOC_CREATE_BUFS
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# include DEF_MPERS_TYPE(struct_v4l2_create_buffers)
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#endif
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#include DEF_MPERS_TYPE(struct_v4l2_ext_control)
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#include DEF_MPERS_TYPE(struct_v4l2_ext_controls)
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#include DEF_MPERS_TYPE(struct_v4l2_format)
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#include DEF_MPERS_TYPE(struct_v4l2_framebuffer)
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#include DEF_MPERS_TYPE(struct_v4l2_input)
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#include DEF_MPERS_TYPE(struct_v4l2_standard)
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typedef struct v4l2_buffer struct_v4l2_buffer;
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typedef struct v4l2_clip struct_v4l2_clip;
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#ifdef VIDIOC_CREATE_BUFS
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typedef struct v4l2_create_buffers struct_v4l2_create_buffers;
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#endif
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typedef struct v4l2_ext_control struct_v4l2_ext_control;
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typedef struct v4l2_ext_controls struct_v4l2_ext_controls;
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typedef struct v4l2_format struct_v4l2_format;
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typedef struct v4l2_framebuffer struct_v4l2_framebuffer;
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typedef struct v4l2_input struct_v4l2_input;
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typedef struct v4l2_standard struct_v4l2_standard;
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#include MPERS_DEFS
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#include "print_fields.h"
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#include "xstring.h"
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/* v4l2_fourcc_be was added by Linux commit v3.18-rc1~101^2^2~127 */
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#ifndef v4l2_fourcc_be
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# define v4l2_fourcc_be(a, b, c, d) (v4l2_fourcc(a, b, c, d) | (1 << 31))
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#endif
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#define FMT_FRACT "%u/%u"
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#define ARGS_FRACT(x) ((x).numerator), ((x).denominator)
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#define FMT_RECT "{left=%d, top=%d, width=%u, height=%u}"
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#define ARGS_RECT(x) (x).left, (x).top, (x).width, (x).height
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#include "xlat/v4l2_pix_fmts.h"
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#include "xlat/v4l2_sdr_fmts.h"
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static void
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print_pixelformat(uint32_t fourcc, const struct xlat *xlat)
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{
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unsigned char a[] = {
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(unsigned char) fourcc,
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(unsigned char) (fourcc >> 8),
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(unsigned char) (fourcc >> 16),
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(unsigned char) (fourcc >> 24),
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};
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unsigned int i;
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tprints("v4l2_fourcc(");
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for (i = 0; i < ARRAY_SIZE(a); ++i) {
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unsigned char c = a[i];
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if (i)
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tprints(", ");
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if (c == '\'' || c == '\\') {
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char sym[] = {
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'\'',
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'\\',
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c,
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'\'',
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'\0'
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};
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tprints(sym);
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} else if (c >= ' ' && c <= 0x7e) {
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char sym[] = {
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'\'',
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c,
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'\'',
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'\0'
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};
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tprints(sym);
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} else {
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char hex[] = {
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'\'',
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'\\',
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'x',
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"0123456789abcdef"[c >> 4],
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"0123456789abcdef"[c & 0xf],
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'\'',
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'\0'
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};
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tprints(hex);
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}
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}
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tprints(")");
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if (xlat) {
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const char *pixfmt_name = xlookup(xlat, fourcc);
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if (pixfmt_name)
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tprints_comment(pixfmt_name);
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}
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}
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#include "xlat/v4l2_device_capabilities_flags.h"
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static int
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print_v4l2_capability(struct tcb *const tcp, const kernel_ulong_t arg)
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{
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struct v4l2_capability caps;
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if (entering(tcp))
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return 0;
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tprints(", ");
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if (umove_or_printaddr(tcp, arg, &caps))
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return RVAL_IOCTL_DECODED;
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PRINT_FIELD_CSTRING("{", caps, driver);
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PRINT_FIELD_CSTRING(", ", caps, card);
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PRINT_FIELD_CSTRING(", ", caps, bus_info);
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tprintf(", version=%u.%u.%u, capabilities=",
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(caps.version >> 16) & 0xFF,
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(caps.version >> 8) & 0xFF,
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caps.version & 0xFF);
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printflags(v4l2_device_capabilities_flags, caps.capabilities,
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"V4L2_CAP_???");
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#ifdef V4L2_CAP_DEVICE_CAPS
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tprints(", device_caps=");
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printflags(v4l2_device_capabilities_flags, caps.device_caps,
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"V4L2_CAP_???");
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#endif
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tprints("}");
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return RVAL_IOCTL_DECODED;
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}
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#include "xlat/v4l2_buf_types.h"
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#include "xlat/v4l2_format_description_flags.h"
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static int
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print_v4l2_fmtdesc(struct tcb *const tcp, const kernel_ulong_t arg)
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{
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struct v4l2_fmtdesc f;
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if (entering(tcp)) {
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tprints(", ");
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if (umove_or_printaddr(tcp, arg, &f))
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return RVAL_IOCTL_DECODED;
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tprintf("{index=%u, type=", f.index);
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printxval(v4l2_buf_types, f.type, "V4L2_BUF_TYPE_???");
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return 0;
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}
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if (!syserror(tcp) && !umove(tcp, arg, &f)) {
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tprints(", flags=");
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printflags(v4l2_format_description_flags, f.flags,
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"V4L2_FMT_FLAG_???");
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PRINT_FIELD_CSTRING(", ", f, description);
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tprints(", pixelformat=");
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print_pixelformat(f.pixelformat, v4l2_pix_fmts);
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}
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tprints("}");
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return RVAL_IOCTL_DECODED;
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}
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#include "xlat/v4l2_fields.h"
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#include "xlat/v4l2_colorspaces.h"
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#include "xlat/v4l2_vbi_flags.h"
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#include "xlat/v4l2_sliced_flags.h"
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static bool
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print_v4l2_clip(struct tcb *tcp, void *elem_buf, size_t elem_size, void *data)
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{
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const struct_v4l2_clip *p = elem_buf;
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tprintf(FMT_RECT, ARGS_RECT(p->c));
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return true;
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}
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static bool
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print_v4l2_format_fmt(struct tcb *const tcp, const char *prefix,
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const struct_v4l2_format *f)
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{
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bool ret = true;
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switch (f->type) {
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case V4L2_BUF_TYPE_VIDEO_CAPTURE:
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case V4L2_BUF_TYPE_VIDEO_OUTPUT:
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tprints(prefix);
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tprintf("fmt.pix={width=%u, height=%u, pixelformat=",
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f->fmt.pix.width, f->fmt.pix.height);
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print_pixelformat(f->fmt.pix.pixelformat, v4l2_pix_fmts);
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tprints(", field=");
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printxval(v4l2_fields, f->fmt.pix.field, "V4L2_FIELD_???");
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tprintf(", bytesperline=%u, sizeimage=%u, colorspace=",
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f->fmt.pix.bytesperline, f->fmt.pix.sizeimage);
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printxval(v4l2_colorspaces, f->fmt.pix.colorspace,
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"V4L2_COLORSPACE_???");
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tprints("}");
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break;
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#if HAVE_DECL_V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE
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case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
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case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: {
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unsigned int i, max;
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tprints(prefix);
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tprintf("fmt.pix_mp={width=%u, height=%u, pixelformat=",
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f->fmt.pix_mp.width, f->fmt.pix_mp.height);
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print_pixelformat(f->fmt.pix_mp.pixelformat, v4l2_pix_fmts);
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tprints(", field=");
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printxval(v4l2_fields, f->fmt.pix_mp.field, "V4L2_FIELD_???");
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tprints(", colorspace=");
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printxval(v4l2_colorspaces, f->fmt.pix_mp.colorspace,
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"V4L2_COLORSPACE_???");
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tprints(", plane_fmt=[");
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max = f->fmt.pix_mp.num_planes;
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if (max > VIDEO_MAX_PLANES)
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max = VIDEO_MAX_PLANES;
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for (i = 0; i < max; i++) {
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if (i > 0)
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tprints(", ");
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tprintf("{sizeimage=%u, bytesperline=%u}",
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f->fmt.pix_mp.plane_fmt[i].sizeimage,
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f->fmt.pix_mp.plane_fmt[i].bytesperline);
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}
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tprintf("], num_planes=%u}",
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(unsigned) f->fmt.pix_mp.num_planes);
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break;
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}
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#endif
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/* OUTPUT_OVERLAY since Linux v2.6.22-rc1~1118^2~179 */
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#if HAVE_DECL_V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY
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case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
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#endif
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case V4L2_BUF_TYPE_VIDEO_OVERLAY: {
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struct_v4l2_clip clip;
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tprints(prefix);
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tprintf("fmt.win={left=%d, top=%d, width=%u, height=%u, field=",
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ARGS_RECT(f->fmt.win.w));
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printxval(v4l2_fields, f->fmt.win.field, "V4L2_FIELD_???");
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tprintf(", chromakey=%#x, clips=", f->fmt.win.chromakey);
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ret = print_array(tcp, ptr_to_kulong(f->fmt.win.clips),
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f->fmt.win.clipcount, &clip, sizeof(clip),
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tfetch_mem, print_v4l2_clip, 0);
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tprintf(", clipcount=%u, bitmap=", f->fmt.win.clipcount);
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printaddr(ptr_to_kulong(f->fmt.win.bitmap));
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#ifdef HAVE_STRUCT_V4L2_WINDOW_GLOBAL_ALPHA
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tprintf(", global_alpha=%#x", f->fmt.win.global_alpha);
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#endif
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tprints("}");
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break;
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}
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case V4L2_BUF_TYPE_VBI_CAPTURE:
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case V4L2_BUF_TYPE_VBI_OUTPUT:
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tprints(prefix);
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tprintf("fmt.vbi={sampling_rate=%u, offset=%u, "
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"samples_per_line=%u, sample_format=",
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f->fmt.vbi.sampling_rate, f->fmt.vbi.offset,
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f->fmt.vbi.samples_per_line);
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print_pixelformat(f->fmt.vbi.sample_format, v4l2_pix_fmts);
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tprintf(", start=[%u, %u], count=[%u, %u], ",
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f->fmt.vbi.start[0], f->fmt.vbi.start[1],
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f->fmt.vbi.count[0], f->fmt.vbi.count[1]);
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tprints("flags=");
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printxval(v4l2_vbi_flags, f->fmt.vbi.flags, "V4L2_VBI_???");
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tprints("}");
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break;
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/* both since Linux v2.6.14-rc2~64 */
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#if HAVE_DECL_V4L2_BUF_TYPE_SLICED_VBI_CAPTURE
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case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
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case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: {
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unsigned int i, j;
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tprints(prefix);
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tprints("fmt.sliced={service_set=");
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printxval(v4l2_sliced_flags, f->fmt.sliced.service_set,
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"V4L2_SLICED_???");
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tprintf(", io_size=%u, service_lines=[",
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f->fmt.sliced.io_size);
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for (i = 0; i < ARRAY_SIZE(f->fmt.sliced.service_lines); i++) {
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if (i > 0)
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tprints(", ");
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tprints("[");
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for (j = 0;
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j < ARRAY_SIZE(f->fmt.sliced.service_lines[0]);
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j++) {
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if (j > 0)
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tprints(", ");
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tprintf("%#x",
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f->fmt.sliced.service_lines[i][j]);
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}
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tprints("]");
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}
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tprints("]}");
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break;
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}
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#endif
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/* since Linux v4.4-rc1~118^2~14 */
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#if HAVE_DECL_V4L2_BUF_TYPE_SDR_OUTPUT
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case V4L2_BUF_TYPE_SDR_OUTPUT:
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#endif
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/* since Linux v3.15-rc1~85^2~213 */
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#if HAVE_DECL_V4L2_BUF_TYPE_SDR_CAPTURE
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case V4L2_BUF_TYPE_SDR_CAPTURE:
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tprints(prefix);
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tprints("fmt.sdr={pixelformat=");
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print_pixelformat(f->fmt.sdr.pixelformat, v4l2_sdr_fmts);
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#ifdef HAVE_STRUCT_V4L2_SDR_FORMAT_BUFFERSIZE
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tprintf(", buffersize=%u",
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f->fmt.sdr.buffersize);
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#endif
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tprints("}");
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break;
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#endif
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}
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return ret;
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}
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static int
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print_v4l2_format(struct tcb *const tcp, const kernel_ulong_t arg,
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const bool is_get)
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{
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struct_v4l2_format f;
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if (entering(tcp)) {
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tprints(", ");
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if (umove_or_printaddr(tcp, arg, &f))
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return RVAL_IOCTL_DECODED;
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tprints("{type=");
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printxval(v4l2_buf_types, f.type, "V4L2_BUF_TYPE_???");
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if (is_get)
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return 0;
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if (!print_v4l2_format_fmt(tcp, ", ", &f)) {
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tprints("}");
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return RVAL_IOCTL_DECODED;
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}
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|
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return 0;
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}
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if (!syserror(tcp) && !umove(tcp, arg, &f))
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print_v4l2_format_fmt(tcp, is_get ? ", " : " => ", &f);
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tprints("}");
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|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
|
|
#include "xlat/v4l2_memories.h"
|
|
|
|
static int
|
|
print_v4l2_requestbuffers(struct tcb *const tcp, const kernel_ulong_t arg)
|
|
{
|
|
struct v4l2_requestbuffers reqbufs;
|
|
|
|
if (entering(tcp)) {
|
|
tprints(", ");
|
|
|
|
if (umove_or_printaddr(tcp, arg, &reqbufs))
|
|
return RVAL_IOCTL_DECODED;
|
|
|
|
tprintf("{type=");
|
|
printxval(v4l2_buf_types, reqbufs.type, "V4L2_BUF_TYPE_???");
|
|
tprints(", memory=");
|
|
printxval(v4l2_memories, reqbufs.memory, "V4L2_MEMORY_???");
|
|
tprintf(", count=%u", reqbufs.count);
|
|
|
|
return 0;
|
|
}
|
|
|
|
if (!syserror(tcp)) {
|
|
tprints(" => ");
|
|
|
|
if (!umove(tcp, arg, &reqbufs))
|
|
tprintf("%u", reqbufs.count);
|
|
else
|
|
tprints("???");
|
|
}
|
|
|
|
tprints("}");
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
|
|
#include "xlat/v4l2_buf_flags.h"
|
|
|
|
static int
|
|
print_v4l2_buffer(struct tcb *const tcp, const unsigned int code,
|
|
const kernel_ulong_t arg)
|
|
{
|
|
struct_v4l2_buffer b;
|
|
|
|
if (entering(tcp)) {
|
|
tprints(", ");
|
|
if (umove_or_printaddr(tcp, arg, &b))
|
|
return RVAL_IOCTL_DECODED;
|
|
tprints("{type=");
|
|
printxval(v4l2_buf_types, b.type, "V4L2_BUF_TYPE_???");
|
|
if (code != VIDIOC_DQBUF)
|
|
tprintf(", index=%u", b.index);
|
|
|
|
return 0;
|
|
}
|
|
|
|
if (!syserror(tcp) && !umove(tcp, arg, &b)) {
|
|
if (code == VIDIOC_DQBUF)
|
|
tprintf(", index=%u", b.index);
|
|
tprints(", memory=");
|
|
printxval(v4l2_memories, b.memory, "V4L2_MEMORY_???");
|
|
|
|
if (b.memory == V4L2_MEMORY_MMAP) {
|
|
tprintf(", m.offset=%#x", b.m.offset);
|
|
} else if (b.memory == V4L2_MEMORY_USERPTR) {
|
|
tprints(", m.userptr=");
|
|
printaddr(b.m.userptr);
|
|
}
|
|
|
|
tprintf(", length=%u, bytesused=%u, flags=",
|
|
b.length, b.bytesused);
|
|
printflags(v4l2_buf_flags, b.flags, "V4L2_BUF_FLAG_???");
|
|
if (code == VIDIOC_DQBUF) {
|
|
tprints(", timestamp = ");
|
|
MPERS_FUNC_NAME(print_struct_timeval)(&b.timestamp);
|
|
}
|
|
tprints(", ...");
|
|
}
|
|
|
|
tprints("}");
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
|
|
static int
|
|
print_v4l2_framebuffer(struct tcb *const tcp, const kernel_ulong_t arg)
|
|
{
|
|
struct_v4l2_framebuffer b;
|
|
|
|
tprints(", ");
|
|
if (!umove_or_printaddr(tcp, arg, &b)) {
|
|
tprintf("{capability=%#x, flags=%#x, base=",
|
|
b.capability, b.flags);
|
|
printaddr(ptr_to_kulong(b.base));
|
|
tprints("}");
|
|
}
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
|
|
static int
|
|
print_v4l2_buf_type(struct tcb *const tcp, const kernel_ulong_t arg)
|
|
{
|
|
int type;
|
|
|
|
tprints(", ");
|
|
if (!umove_or_printaddr(tcp, arg, &type)) {
|
|
tprints("[");
|
|
printxval(v4l2_buf_types, type, "V4L2_BUF_TYPE_???");
|
|
tprints("]");
|
|
}
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
|
|
#include "xlat/v4l2_streaming_capabilities.h"
|
|
#include "xlat/v4l2_capture_modes.h"
|
|
|
|
static int
|
|
print_v4l2_streamparm(struct tcb *const tcp, const kernel_ulong_t arg,
|
|
const bool is_get)
|
|
{
|
|
struct v4l2_streamparm s;
|
|
|
|
if (entering(tcp)) {
|
|
tprints(", ");
|
|
if (umove_or_printaddr(tcp, arg, &s))
|
|
return RVAL_IOCTL_DECODED;
|
|
tprints("{type=");
|
|
printxval(v4l2_buf_types, s.type, "V4L2_BUF_TYPE_???");
|
|
switch (s.type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
|
|
if (is_get)
|
|
return 0;
|
|
tprints(", ");
|
|
break;
|
|
default:
|
|
tprints("}");
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
} else {
|
|
if (syserror(tcp) || umove(tcp, arg, &s) < 0) {
|
|
tprints("}");
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
tprints(is_get ? ", " : " => ");
|
|
}
|
|
|
|
if (s.type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
|
|
tprints("parm.capture={capability=");
|
|
printflags(v4l2_streaming_capabilities,
|
|
s.parm.capture.capability, "V4L2_CAP_???");
|
|
|
|
tprints(", capturemode=");
|
|
printflags(v4l2_capture_modes,
|
|
s.parm.capture.capturemode, "V4L2_MODE_???");
|
|
|
|
tprintf(", timeperframe=" FMT_FRACT,
|
|
ARGS_FRACT(s.parm.capture.timeperframe));
|
|
|
|
tprintf(", extendedmode=%u, readbuffers=%u}",
|
|
s.parm.capture.extendedmode,
|
|
s.parm.capture.readbuffers);
|
|
} else {
|
|
tprints("parm.output={capability=");
|
|
printflags(v4l2_streaming_capabilities,
|
|
s.parm.output.capability, "V4L2_CAP_???");
|
|
|
|
tprintf(", outputmode=%u", s.parm.output.outputmode);
|
|
|
|
tprintf(", timeperframe=" FMT_FRACT,
|
|
ARGS_FRACT(s.parm.output.timeperframe));
|
|
|
|
tprintf(", extendedmode=%u, writebuffers=%u}",
|
|
s.parm.output.extendedmode,
|
|
s.parm.output.writebuffers);
|
|
}
|
|
if (entering(tcp)) {
|
|
return 0;
|
|
} else {
|
|
tprints("}");
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
}
|
|
|
|
static int
|
|
print_v4l2_standard(struct tcb *const tcp, const kernel_ulong_t arg)
|
|
{
|
|
struct_v4l2_standard s;
|
|
|
|
if (entering(tcp)) {
|
|
tprints(", ");
|
|
if (umove_or_printaddr(tcp, arg, &s))
|
|
return RVAL_IOCTL_DECODED;
|
|
tprintf("{index=%u", s.index);
|
|
|
|
return 0;
|
|
}
|
|
|
|
if (!syserror(tcp) && !umove(tcp, arg, &s)) {
|
|
PRINT_FIELD_CSTRING(", ", s, name);
|
|
tprintf(", frameperiod=" FMT_FRACT,
|
|
ARGS_FRACT(s.frameperiod));
|
|
tprintf(", framelines=%d", s.framelines);
|
|
}
|
|
|
|
tprints("}");
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
|
|
#include "xlat/v4l2_input_types.h"
|
|
|
|
static int
|
|
print_v4l2_input(struct tcb *const tcp, const kernel_ulong_t arg)
|
|
{
|
|
struct_v4l2_input i;
|
|
|
|
if (entering(tcp)) {
|
|
tprints(", ");
|
|
if (umove_or_printaddr(tcp, arg, &i))
|
|
return RVAL_IOCTL_DECODED;
|
|
tprintf("{index=%u", i.index);
|
|
|
|
return 0;
|
|
}
|
|
|
|
if (!syserror(tcp) && !umove(tcp, arg, &i)) {
|
|
PRINT_FIELD_CSTRING(", ", i, name);
|
|
tprints(", type=");
|
|
printxval(v4l2_input_types, i.type, "V4L2_INPUT_TYPE_???");
|
|
}
|
|
|
|
tprints("}");
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
|
|
/*
|
|
* We include it here and not before print_v4l2_ext_controls as we need
|
|
* V4L2_CTRL_CLASS_* definitions for V4L2_CID_*_BASE ones.
|
|
*/
|
|
#include "xlat/v4l2_control_classes.h"
|
|
#include "xlat/v4l2_control_id_bases.h"
|
|
#include "xlat/v4l2_control_ids.h"
|
|
|
|
static int
|
|
print_v4l2_control(struct tcb *const tcp, const kernel_ulong_t arg,
|
|
const bool is_get)
|
|
{
|
|
struct v4l2_control c;
|
|
|
|
if (entering(tcp)) {
|
|
tprints(", ");
|
|
if (umove_or_printaddr(tcp, arg, &c))
|
|
return RVAL_IOCTL_DECODED;
|
|
tprints("{id=");
|
|
printxval(v4l2_control_ids, c.id, "V4L2_CID_???");
|
|
if (!is_get)
|
|
tprintf(", value=%d", c.value);
|
|
return 0;
|
|
}
|
|
|
|
if (!syserror(tcp) && !umove(tcp, arg, &c)) {
|
|
tprints(is_get ? ", " : " => ");
|
|
tprintf("value=%d", c.value);
|
|
}
|
|
|
|
tprints("}");
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
|
|
#include "xlat/v4l2_tuner_types.h"
|
|
#include "xlat/v4l2_tuner_capabilities.h"
|
|
#include "xlat/v4l2_tuner_rxsubchanses.h"
|
|
#include "xlat/v4l2_tuner_audmodes.h"
|
|
|
|
static int
|
|
print_v4l2_tuner(struct tcb *const tcp, const kernel_ulong_t arg,
|
|
const bool is_get)
|
|
{
|
|
struct v4l2_tuner c;
|
|
if (entering(tcp)) {
|
|
tprints(", ");
|
|
if (umove_or_printaddr(tcp, arg, &c))
|
|
return RVAL_IOCTL_DECODED;
|
|
tprintf("{index=%u", c.index);
|
|
if (is_get)
|
|
return 0;
|
|
tprints(", ");
|
|
} else {
|
|
if (syserror(tcp) || umove(tcp, arg, &c) < 0) {
|
|
tprints("}");
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
tprints(is_get ? ", " : " => ");
|
|
}
|
|
|
|
PRINT_FIELD_CSTRING("", c, name);
|
|
tprints(", type=");
|
|
printxval(v4l2_tuner_types, c.type, "V4L2_TUNER_TYPE_???");
|
|
tprints(", capability=");
|
|
printxval(v4l2_tuner_capabilities, c.capability,
|
|
"V4L2_TUNER_CAP_???");
|
|
tprintf(", rangelow=%u, rangehigh=%u, rxsubchans=",
|
|
c.rangelow, c.rangehigh);
|
|
printxval(v4l2_tuner_rxsubchanses, c.rxsubchans,
|
|
"V4L2_TUNER_SUB_???");
|
|
tprints(", audmode=");
|
|
printxval(v4l2_tuner_audmodes, c.audmode,
|
|
"V4L2_TUNER_MODE_???");
|
|
tprintf(", signal=%d, afc=%d", c.signal, c.afc);
|
|
|
|
if (entering(tcp)) {
|
|
return 0;
|
|
} else {
|
|
tprints("}");
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
}
|
|
|
|
#include "xlat/v4l2_control_types.h"
|
|
#include "xlat/v4l2_control_flags.h"
|
|
|
|
static int
|
|
print_v4l2_queryctrl(struct tcb *const tcp, const kernel_ulong_t arg)
|
|
{
|
|
struct v4l2_queryctrl c;
|
|
|
|
if (entering(tcp)) {
|
|
tprints(", ");
|
|
if (umove_or_printaddr(tcp, arg, &c))
|
|
return RVAL_IOCTL_DECODED;
|
|
tprints("{id=");
|
|
} else {
|
|
if (syserror(tcp) || umove(tcp, arg, &c) < 0) {
|
|
tprints("}");
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
if (get_tcb_priv_ulong(tcp))
|
|
tprints(" => ");
|
|
}
|
|
|
|
if (entering(tcp) || get_tcb_priv_ulong(tcp)) {
|
|
#ifdef V4L2_CTRL_FLAG_NEXT_CTRL
|
|
const unsigned long next = c.id & V4L2_CTRL_FLAG_NEXT_CTRL;
|
|
set_tcb_priv_ulong(tcp, next);
|
|
if (next) {
|
|
print_xlat(V4L2_CTRL_FLAG_NEXT_CTRL);
|
|
tprints("|");
|
|
c.id &= ~V4L2_CTRL_FLAG_NEXT_CTRL;
|
|
}
|
|
#endif
|
|
printxval(v4l2_control_ids, c.id, "V4L2_CID_???");
|
|
}
|
|
|
|
if (exiting(tcp)) {
|
|
tprints(", type=");
|
|
printxval(v4l2_control_types, c.type, "V4L2_CTRL_TYPE_???");
|
|
PRINT_FIELD_CSTRING(", ", c, name);
|
|
tprintf(", minimum=%d, maximum=%d, step=%d"
|
|
", default_value=%d, flags=",
|
|
c.minimum, c.maximum, c.step, c.default_value);
|
|
printflags(v4l2_control_flags, c.flags, "V4L2_CTRL_FLAG_???");
|
|
tprints("}");
|
|
}
|
|
return entering(tcp) ? 0 : RVAL_IOCTL_DECODED;
|
|
}
|
|
|
|
static int
|
|
print_v4l2_cropcap(struct tcb *const tcp, const kernel_ulong_t arg)
|
|
{
|
|
struct v4l2_cropcap c;
|
|
|
|
if (entering(tcp)) {
|
|
tprints(", ");
|
|
if (umove_or_printaddr(tcp, arg, &c))
|
|
return RVAL_IOCTL_DECODED;
|
|
tprints("{type=");
|
|
printxval(v4l2_buf_types, c.type, "V4L2_BUF_TYPE_???");
|
|
|
|
return 0;
|
|
}
|
|
|
|
if (!syserror(tcp) && !umove(tcp, arg, &c)) {
|
|
tprintf(", bounds=" FMT_RECT
|
|
", defrect=" FMT_RECT
|
|
", pixelaspect=" FMT_FRACT,
|
|
ARGS_RECT(c.bounds),
|
|
ARGS_RECT(c.defrect),
|
|
ARGS_FRACT(c.pixelaspect));
|
|
}
|
|
|
|
tprints("}");
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
|
|
static int
|
|
print_v4l2_crop(struct tcb *const tcp, const kernel_ulong_t arg,
|
|
const bool is_get)
|
|
{
|
|
struct v4l2_crop c;
|
|
|
|
if (entering(tcp)) {
|
|
tprints(", ");
|
|
if (umove_or_printaddr(tcp, arg, &c))
|
|
return RVAL_IOCTL_DECODED;
|
|
tprints("{type=");
|
|
printxval(v4l2_buf_types, c.type, "V4L2_BUF_TYPE_???");
|
|
if (is_get)
|
|
return 0;
|
|
tprintf(", c=" FMT_RECT, ARGS_RECT(c.c));
|
|
} else {
|
|
if (!syserror(tcp) && !umove(tcp, arg, &c))
|
|
tprintf(", c=" FMT_RECT, ARGS_RECT(c.c));
|
|
}
|
|
|
|
tprints("}");
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
|
|
#ifdef VIDIOC_S_EXT_CTRLS
|
|
static bool
|
|
print_v4l2_ext_control(struct tcb *tcp, void *elem_buf, size_t elem_size, void *data)
|
|
{
|
|
const struct_v4l2_ext_control *p = elem_buf;
|
|
|
|
tprints("{id=");
|
|
printxval(v4l2_control_ids, p->id, "V4L2_CID_???");
|
|
# if HAVE_DECL_V4L2_CTRL_TYPE_STRING
|
|
tprintf(", size=%u", p->size);
|
|
if (p->size > 0) {
|
|
tprints(", string=");
|
|
printstrn(tcp, ptr_to_kulong(p->string), p->size);
|
|
} else
|
|
# endif
|
|
tprintf(", value=%d, value64=%" PRId64, p->value, (int64_t) p->value64);
|
|
tprints("}");
|
|
|
|
return true;
|
|
}
|
|
|
|
static int
|
|
print_v4l2_ext_controls(struct tcb *const tcp, const kernel_ulong_t arg,
|
|
const bool is_get)
|
|
{
|
|
struct_v4l2_ext_controls c;
|
|
|
|
if (entering(tcp)) {
|
|
tprints(", ");
|
|
if (umove_or_printaddr(tcp, arg, &c))
|
|
return RVAL_IOCTL_DECODED;
|
|
tprints("{ctrl_class=");
|
|
printxval(v4l2_control_classes, c.ctrl_class,
|
|
"V4L2_CTRL_CLASS_???");
|
|
tprintf(", count=%u", c.count);
|
|
if (!c.count) {
|
|
tprints("}");
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
if (is_get)
|
|
return 0;
|
|
tprints(", ");
|
|
} else {
|
|
if (umove(tcp, arg, &c) < 0) {
|
|
tprints("}");
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
tprints(is_get ? ", " : " => ");
|
|
}
|
|
|
|
tprints("controls=");
|
|
struct_v4l2_ext_control ctrl;
|
|
bool fail = !print_array(tcp, ptr_to_kulong(c.controls), c.count,
|
|
&ctrl, sizeof(ctrl),
|
|
tfetch_mem_ignore_syserror,
|
|
print_v4l2_ext_control, 0);
|
|
|
|
if (exiting(tcp) && syserror(tcp))
|
|
tprintf(", error_idx=%u", c.error_idx);
|
|
|
|
if (exiting(tcp) || fail) {
|
|
tprints("}");
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
|
|
/* entering */
|
|
return 0;
|
|
}
|
|
#endif /* VIDIOC_S_EXT_CTRLS */
|
|
|
|
#ifdef VIDIOC_ENUM_FRAMESIZES
|
|
# include "xlat/v4l2_framesize_types.h"
|
|
|
|
static int
|
|
print_v4l2_frmsizeenum(struct tcb *const tcp, const kernel_ulong_t arg)
|
|
{
|
|
struct v4l2_frmsizeenum s;
|
|
|
|
if (entering(tcp)) {
|
|
tprints(", ");
|
|
if (umove_or_printaddr(tcp, arg, &s))
|
|
return RVAL_IOCTL_DECODED;
|
|
tprintf("{index=%u, pixel_format=", s.index);
|
|
print_pixelformat(s.pixel_format, v4l2_pix_fmts);
|
|
return 0;
|
|
}
|
|
|
|
if (!syserror(tcp) && !umove(tcp, arg, &s)) {
|
|
tprints(", type=");
|
|
printxval(v4l2_framesize_types, s.type, "V4L2_FRMSIZE_TYPE_???");
|
|
switch (s.type) {
|
|
case V4L2_FRMSIZE_TYPE_DISCRETE:
|
|
tprintf(", discrete={width=%u, height=%u}",
|
|
s.discrete.width, s.discrete.height);
|
|
break;
|
|
case V4L2_FRMSIZE_TYPE_STEPWISE:
|
|
tprintf(", stepwise={min_width=%u, max_width=%u, "
|
|
"step_width=%u, min_height=%u, max_height=%u, "
|
|
"step_height=%u}",
|
|
s.stepwise.min_width, s.stepwise.max_width,
|
|
s.stepwise.step_width, s.stepwise.min_height,
|
|
s.stepwise.max_height, s.stepwise.step_height);
|
|
break;
|
|
}
|
|
}
|
|
tprints("}");
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
#endif /* VIDIOC_ENUM_FRAMESIZES */
|
|
|
|
#ifdef VIDIOC_ENUM_FRAMEINTERVALS
|
|
# include "xlat/v4l2_frameinterval_types.h"
|
|
|
|
static int
|
|
print_v4l2_frmivalenum(struct tcb *const tcp, const kernel_ulong_t arg)
|
|
{
|
|
struct v4l2_frmivalenum f;
|
|
|
|
if (entering(tcp)) {
|
|
tprints(", ");
|
|
if (umove_or_printaddr(tcp, arg, &f))
|
|
return RVAL_IOCTL_DECODED;
|
|
tprintf("{index=%u, pixel_format=", f.index);
|
|
print_pixelformat(f.pixel_format, v4l2_pix_fmts);
|
|
tprintf(", width=%u, height=%u", f.width, f.height);
|
|
return 0;
|
|
}
|
|
|
|
if (!syserror(tcp) && !umove(tcp, arg, &f)) {
|
|
tprints(", type=");
|
|
printxval(v4l2_frameinterval_types, f.type,
|
|
"V4L2_FRMIVAL_TYPE_???");
|
|
switch (f.type) {
|
|
case V4L2_FRMIVAL_TYPE_DISCRETE:
|
|
tprintf(", discrete=" FMT_FRACT,
|
|
ARGS_FRACT(f.discrete));
|
|
break;
|
|
case V4L2_FRMIVAL_TYPE_STEPWISE:
|
|
case V4L2_FRMSIZE_TYPE_CONTINUOUS:
|
|
tprintf(", stepwise={min=" FMT_FRACT ", max="
|
|
FMT_FRACT ", step=" FMT_FRACT "}",
|
|
ARGS_FRACT(f.stepwise.min),
|
|
ARGS_FRACT(f.stepwise.max),
|
|
ARGS_FRACT(f.stepwise.step));
|
|
break;
|
|
}
|
|
}
|
|
|
|
tprints("}");
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
#endif /* VIDIOC_ENUM_FRAMEINTERVALS */
|
|
|
|
#ifdef VIDIOC_CREATE_BUFS
|
|
static int
|
|
print_v4l2_create_buffers(struct tcb *const tcp, const kernel_ulong_t arg)
|
|
{
|
|
static const char fmt[] = "{index=%u, count=%u}";
|
|
static char outstr[sizeof(fmt) + sizeof(int) * 6];
|
|
|
|
struct_v4l2_create_buffers b;
|
|
|
|
if (entering(tcp)) {
|
|
tprints(", ");
|
|
if (umove_or_printaddr(tcp, arg, &b))
|
|
return RVAL_IOCTL_DECODED;
|
|
tprintf("{count=%u, memory=", b.count);
|
|
printxval(v4l2_memories, b.memory, "V4L2_MEMORY_???");
|
|
tprints(", format={type=");
|
|
printxval(v4l2_buf_types, b.format.type,
|
|
"V4L2_BUF_TYPE_???");
|
|
print_v4l2_format_fmt(tcp, ", ",
|
|
(struct_v4l2_format *) &b.format);
|
|
tprints("}}");
|
|
return 0;
|
|
}
|
|
|
|
if (syserror(tcp) || umove(tcp, arg, &b))
|
|
return RVAL_IOCTL_DECODED;
|
|
|
|
xsprintf(outstr, fmt, b.index, b.count);
|
|
tcp->auxstr = outstr;
|
|
|
|
return RVAL_IOCTL_DECODED | RVAL_STR;
|
|
}
|
|
#endif /* VIDIOC_CREATE_BUFS */
|
|
|
|
MPERS_PRINTER_DECL(int, v4l2_ioctl, struct tcb *const tcp,
|
|
const unsigned int code, const kernel_ulong_t arg)
|
|
{
|
|
if (!verbose(tcp))
|
|
return RVAL_DECODED;
|
|
|
|
switch (code) {
|
|
case VIDIOC_QUERYCAP: /* R */
|
|
return print_v4l2_capability(tcp, arg);
|
|
|
|
case VIDIOC_ENUM_FMT: /* RW */
|
|
return print_v4l2_fmtdesc(tcp, arg);
|
|
|
|
case VIDIOC_G_FMT: /* RW */
|
|
case VIDIOC_S_FMT: /* RW */
|
|
case VIDIOC_TRY_FMT: /* RW */
|
|
return print_v4l2_format(tcp, arg, code == VIDIOC_G_FMT);
|
|
|
|
case VIDIOC_REQBUFS: /* RW */
|
|
return print_v4l2_requestbuffers(tcp, arg);
|
|
|
|
case VIDIOC_QUERYBUF: /* RW */
|
|
case VIDIOC_QBUF: /* RW */
|
|
case VIDIOC_DQBUF: /* RW */
|
|
return print_v4l2_buffer(tcp, code, arg);
|
|
|
|
case VIDIOC_G_FBUF: /* R */
|
|
if (entering(tcp))
|
|
return 0;
|
|
ATTRIBUTE_FALLTHROUGH;
|
|
case VIDIOC_S_FBUF: /* W */
|
|
return print_v4l2_framebuffer(tcp, arg);
|
|
|
|
case VIDIOC_STREAMON: /* W */
|
|
case VIDIOC_STREAMOFF: /* W */
|
|
return print_v4l2_buf_type(tcp, arg);
|
|
|
|
case VIDIOC_G_PARM: /* RW */
|
|
case VIDIOC_S_PARM: /* RW */
|
|
return print_v4l2_streamparm(tcp, arg, code == VIDIOC_G_PARM);
|
|
|
|
case VIDIOC_G_STD: /* R */
|
|
if (entering(tcp))
|
|
return 0;
|
|
ATTRIBUTE_FALLTHROUGH;
|
|
case VIDIOC_S_STD: /* W */
|
|
tprints(", ");
|
|
printnum_int64(tcp, arg, "%#" PRIx64);
|
|
break;
|
|
|
|
case VIDIOC_ENUMSTD: /* RW */
|
|
return print_v4l2_standard(tcp, arg);
|
|
|
|
case VIDIOC_ENUMINPUT: /* RW */
|
|
return print_v4l2_input(tcp, arg);
|
|
|
|
case VIDIOC_G_CTRL: /* RW */
|
|
case VIDIOC_S_CTRL: /* RW */
|
|
return print_v4l2_control(tcp, arg, code == VIDIOC_G_CTRL);
|
|
|
|
case VIDIOC_G_TUNER: /* RW */
|
|
case VIDIOC_S_TUNER: /* RW */
|
|
return print_v4l2_tuner(tcp, arg, code == VIDIOC_G_TUNER);
|
|
|
|
case VIDIOC_QUERYCTRL: /* RW */
|
|
return print_v4l2_queryctrl(tcp, arg);
|
|
|
|
case VIDIOC_G_INPUT: /* R */
|
|
if (entering(tcp))
|
|
return 0;
|
|
ATTRIBUTE_FALLTHROUGH;
|
|
case VIDIOC_S_INPUT: /* RW */
|
|
tprints(", ");
|
|
printnum_int(tcp, arg, "%u");
|
|
break;
|
|
|
|
case VIDIOC_CROPCAP: /* RW */
|
|
return print_v4l2_cropcap(tcp, arg);
|
|
|
|
case VIDIOC_G_CROP: /* RW */
|
|
case VIDIOC_S_CROP: /* W */
|
|
return print_v4l2_crop(tcp, arg, code == VIDIOC_G_CROP);
|
|
|
|
#ifdef VIDIOC_S_EXT_CTRLS
|
|
case VIDIOC_S_EXT_CTRLS: /* RW */
|
|
case VIDIOC_TRY_EXT_CTRLS: /* RW */
|
|
case VIDIOC_G_EXT_CTRLS: /* RW */
|
|
return print_v4l2_ext_controls(tcp, arg,
|
|
code == VIDIOC_G_EXT_CTRLS);
|
|
#endif /* VIDIOC_S_EXT_CTRLS */
|
|
|
|
#ifdef VIDIOC_ENUM_FRAMESIZES
|
|
case VIDIOC_ENUM_FRAMESIZES: /* RW */
|
|
return print_v4l2_frmsizeenum(tcp, arg);
|
|
#endif /* VIDIOC_ENUM_FRAMESIZES */
|
|
|
|
#ifdef VIDIOC_ENUM_FRAMEINTERVALS
|
|
case VIDIOC_ENUM_FRAMEINTERVALS: /* RW */
|
|
return print_v4l2_frmivalenum(tcp, arg);
|
|
#endif /* VIDIOC_ENUM_FRAMEINTERVALS */
|
|
|
|
#ifdef VIDIOC_CREATE_BUFS
|
|
case VIDIOC_CREATE_BUFS: /* RW */
|
|
return print_v4l2_create_buffers(tcp, arg);
|
|
#endif /* VIDIOC_CREATE_BUFS */
|
|
|
|
default:
|
|
return RVAL_DECODED;
|
|
}
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|