Dmitry V. Levin
7fa3d78319
Remove temporary types created for transition from long to kernel_ulong_t. Automatically replace kernel_scno_t and kernel_ureg_t with kernel_ulong_t using $ git grep -El 'kernel_(scno|ureg)_t' | xargs sed -ri 's/kernel_(scno|ureg)_t/kernel_ulong_t/g' * kernel_types.h (kernel_scno_t, kernel_ureg_t): Remove. All users updated.
139 lines
3.7 KiB
C
139 lines
3.7 KiB
C
/*
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* Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org>
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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 "xlat/name_to_handle_at_flags.h"
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#ifndef MAX_HANDLE_SZ
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# define MAX_HANDLE_SZ 128
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#endif
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typedef struct {
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unsigned int handle_bytes;
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int handle_type;
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} file_handle_header;
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SYS_FUNC(name_to_handle_at)
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{
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file_handle_header h;
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const kernel_ulong_t addr = tcp->u_arg[2];
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if (entering(tcp)) {
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/* dirfd */
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print_dirfd(tcp, tcp->u_arg[0]);
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/* pathname */
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printpath(tcp, tcp->u_arg[1]);
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tprints(", ");
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/* handle */
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if (umove_or_printaddr(tcp, addr, &h)) {
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tprints(", ");
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/* mount_id */
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printaddr(tcp->u_arg[3]);
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tprints(", ");
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/* flags */
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printflags(name_to_handle_at_flags, tcp->u_arg[4],
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"AT_???");
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return RVAL_DECODED;
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}
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tprintf("{handle_bytes=%u", h.handle_bytes);
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set_tcb_priv_ulong(tcp, h.handle_bytes);
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return 0;
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} else {
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unsigned int i = get_tcb_priv_ulong(tcp);
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if ((!syserror(tcp) || EOVERFLOW == tcp->u_error)
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&& !umove(tcp, addr, &h)) {
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unsigned char f_handle[MAX_HANDLE_SZ];
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if (i != h.handle_bytes)
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tprintf(" => %u", h.handle_bytes);
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if (!syserror(tcp)) {
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tprintf(", handle_type=%d", h.handle_type);
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if (h.handle_bytes > MAX_HANDLE_SZ)
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h.handle_bytes = MAX_HANDLE_SZ;
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if (!umoven(tcp, addr + sizeof(h), h.handle_bytes,
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f_handle)) {
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tprints(", f_handle=0x");
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for (i = 0; i < h.handle_bytes; ++i)
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tprintf("%02x", f_handle[i]);
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}
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}
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}
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tprints("}, ");
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/* mount_id */
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printnum_int(tcp, tcp->u_arg[3], "%d");
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tprints(", ");
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/* flags */
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printflags(name_to_handle_at_flags, tcp->u_arg[4], "AT_???");
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}
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return 0;
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}
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SYS_FUNC(open_by_handle_at)
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{
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file_handle_header h;
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const kernel_ulong_t addr = tcp->u_arg[1];
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/* mount_fd */
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printfd(tcp, tcp->u_arg[0]);
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tprints(", ");
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/* handle */
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if (!umove_or_printaddr(tcp, addr, &h)) {
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unsigned char f_handle[MAX_HANDLE_SZ];
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tprintf("{handle_bytes=%u, handle_type=%d",
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h.handle_bytes, h.handle_type);
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if (h.handle_bytes > MAX_HANDLE_SZ)
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h.handle_bytes = MAX_HANDLE_SZ;
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if (!umoven(tcp, addr + sizeof(h), h.handle_bytes, &f_handle)) {
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unsigned int i;
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tprints(", f_handle=0x");
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for (i = 0; i < h.handle_bytes; ++i)
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tprintf("%02x", f_handle[i]);
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}
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tprints("}");
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}
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tprints(", ");
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/* flags */
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tprint_open_modes(tcp->u_arg[2]);
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return RVAL_DECODED;
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}
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