8015a74269
* defs.h (decode_inotify_read): New declaration. * inotify.c: Include "print_fields.h". (decode_inotify_read): New function. * io.c (decode_readbuf) <decoders>: Add decoder for anon_inode:inotify.
128 lines
3.2 KiB
C
128 lines
3.2 KiB
C
/*
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* Copyright (c) 2006 Bernhard Kaindl <bk@suse.de>
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* Copyright (c) 2006-2015 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 <fcntl.h>
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#include "print_fields.h"
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#include "xlat/inotify_flags.h"
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#include "xlat/inotify_init_flags.h"
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bool
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decode_inotify_read(struct tcb *tcp, int fd, const char *fdpath,
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enum fileops op, kernel_ulong_t addr,
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kernel_ulong_t addrlen)
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{
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struct iev_hdr {
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int32_t wd;
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uint32_t mask;
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uint32_t cookie;
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uint32_t len;
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} iev_hdr;
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kernel_ulong_t pos = 0;
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if (addrlen < sizeof(iev_hdr))
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return false;
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tprints("[");
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do {
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if (pos)
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tprints(", ");
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if (umove(tcp, addr + pos, &iev_hdr)) {
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printaddr_comment(addr + pos);
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break;
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}
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PRINT_FIELD_D("{", iev_hdr, wd);
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PRINT_FIELD_FLAGS(", ", iev_hdr, mask, inotify_flags, "IN_???");
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PRINT_FIELD_U(", ", iev_hdr, cookie);
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PRINT_FIELD_U(", ", iev_hdr, len);
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pos += sizeof(iev_hdr);
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if (iev_hdr.len) {
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tprints(", name=");
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printstrn(tcp, addr + pos, iev_hdr.len);
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pos += iev_hdr.len;
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}
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tprints("}");
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} while (pos <= addrlen - sizeof(iev_hdr));
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if (pos < addrlen) {
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if (pos)
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tprints(", ");
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printstrn(tcp, addr + pos, addrlen - pos);
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}
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tprints("]");
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return true;
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}
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SYS_FUNC(inotify_add_watch)
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{
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/* file descriptor */
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printfd(tcp, tcp->u_arg[0]);
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tprints(", ");
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/* pathname */
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printpath(tcp, tcp->u_arg[1]);
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tprints(", ");
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/* mask */
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printflags(inotify_flags, tcp->u_arg[2], "IN_???");
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return RVAL_DECODED;
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}
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SYS_FUNC(inotify_rm_watch)
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{
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/* file descriptor */
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printfd(tcp, tcp->u_arg[0]);
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/* watch descriptor */
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tprintf(", %d", (int) tcp->u_arg[1]);
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return RVAL_DECODED;
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}
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SYS_FUNC(inotify_init)
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{
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return RVAL_DECODED | RVAL_FD;
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}
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SYS_FUNC(inotify_init1)
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{
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printflags(inotify_init_flags, tcp->u_arg[0], "IN_???");
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return RVAL_DECODED | RVAL_FD;
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}
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