2 * Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org>
3 * Copyright (c) 2015-2017 The strace developers.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 #include "xlat/name_to_handle_at_flags.h"
34 # define MAX_HANDLE_SZ 128
38 unsigned int handle_bytes;
42 SYS_FUNC(name_to_handle_at)
45 const kernel_ulong_t addr = tcp->u_arg[2];
49 print_dirfd(tcp, tcp->u_arg[0]);
52 printpath(tcp, tcp->u_arg[1]);
56 if (umove_or_printaddr(tcp, addr, &h)) {
60 printaddr(tcp->u_arg[3]);
64 printflags(name_to_handle_at_flags, tcp->u_arg[4],
69 tprintf("{handle_bytes=%u", h.handle_bytes);
71 set_tcb_priv_ulong(tcp, h.handle_bytes);
75 unsigned int i = get_tcb_priv_ulong(tcp);
77 if ((!syserror(tcp) || EOVERFLOW == tcp->u_error)
78 && !umove(tcp, addr, &h)) {
79 unsigned char f_handle[MAX_HANDLE_SZ];
81 if (i != h.handle_bytes)
82 tprintf(" => %u", h.handle_bytes);
84 tprintf(", handle_type=%d", h.handle_type);
85 if (h.handle_bytes > MAX_HANDLE_SZ)
86 h.handle_bytes = MAX_HANDLE_SZ;
87 if (!umoven(tcp, addr + sizeof(h), h.handle_bytes,
89 tprints(", f_handle=0x");
90 for (i = 0; i < h.handle_bytes; ++i)
91 tprintf("%02x", f_handle[i]);
98 printnum_int(tcp, tcp->u_arg[3], "%d");
102 printflags(name_to_handle_at_flags, tcp->u_arg[4], "AT_???");
107 SYS_FUNC(open_by_handle_at)
109 file_handle_header h;
110 const kernel_ulong_t addr = tcp->u_arg[1];
113 printfd(tcp, tcp->u_arg[0]);
117 if (!umove_or_printaddr(tcp, addr, &h)) {
118 unsigned char f_handle[MAX_HANDLE_SZ];
120 tprintf("{handle_bytes=%u, handle_type=%d",
121 h.handle_bytes, h.handle_type);
122 if (h.handle_bytes > MAX_HANDLE_SZ)
123 h.handle_bytes = MAX_HANDLE_SZ;
124 if (!umoven(tcp, addr + sizeof(h), h.handle_bytes, &f_handle)) {
127 tprints(", f_handle=0x");
128 for (i = 0; i < h.handle_bytes; ++i)
129 tprintf("%02x", f_handle[i]);
136 tprint_open_modes(tcp->u_arg[2]);