You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
136 lines
4.1 KiB
136 lines
4.1 KiB
/*
|
|
* Copyright (c) 1993 Ulrich Pegelow <pegelow@moorea.uni-muenster.de>
|
|
* Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
|
|
* Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
|
|
* Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
|
|
* Copyright (c) 2003-2006 Roland McGrath <roland@redhat.com>
|
|
* Copyright (c) 2006-2015 Dmitry V. Levin <ldv@altlinux.org>
|
|
* Copyright (c) 2015-2018 The strace developers.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "defs.h"
|
|
#include "ipc_defs.h"
|
|
|
|
#ifdef HAVE_SYS_MSG_H
|
|
# include <sys/msg.h>
|
|
#elif defined HAVE_LINUX_MSG_H
|
|
# include <linux/msg.h>
|
|
#endif
|
|
|
|
#include "xlat/ipc_msg_flags.h"
|
|
#include "xlat/ipc_private.h"
|
|
#include "xlat/resource_flags.h"
|
|
|
|
SYS_FUNC(msgget)
|
|
{
|
|
printxval(ipc_private, (unsigned int) tcp->u_arg[0], NULL);
|
|
tprints(", ");
|
|
if (printflags(resource_flags, tcp->u_arg[1] & ~0777, NULL) != 0)
|
|
tprints("|");
|
|
print_numeric_umode_t(tcp->u_arg[1] & 0777);
|
|
return RVAL_DECODED;
|
|
}
|
|
|
|
static void
|
|
tprint_msgsnd(struct tcb *const tcp, const kernel_ulong_t addr,
|
|
const kernel_ulong_t count, const unsigned int flags)
|
|
{
|
|
tprint_msgbuf(tcp, addr, count);
|
|
printflags(ipc_msg_flags, flags, "MSG_???");
|
|
}
|
|
|
|
SYS_FUNC(msgsnd)
|
|
{
|
|
tprintf("%d, ", (int) tcp->u_arg[0]);
|
|
if (indirect_ipccall(tcp)) {
|
|
tprint_msgsnd(tcp, tcp->u_arg[3], tcp->u_arg[1],
|
|
tcp->u_arg[2]);
|
|
} else {
|
|
tprint_msgsnd(tcp, tcp->u_arg[1], tcp->u_arg[2],
|
|
tcp->u_arg[3]);
|
|
}
|
|
return RVAL_DECODED;
|
|
}
|
|
|
|
static void
|
|
tprint_msgrcv(struct tcb *const tcp, const kernel_ulong_t addr,
|
|
const kernel_ulong_t count, const kernel_ulong_t msgtyp)
|
|
{
|
|
tprint_msgbuf(tcp, addr, count);
|
|
tprintf("%" PRI_kld ", ", msgtyp);
|
|
}
|
|
|
|
static int
|
|
fetch_msgrcv_args(struct tcb *const tcp, const kernel_ulong_t addr,
|
|
kernel_ulong_t *const pair)
|
|
{
|
|
if (current_wordsize == sizeof(*pair)) {
|
|
if (umoven_or_printaddr(tcp, addr, 2 * sizeof(*pair), pair))
|
|
return -1;
|
|
} else {
|
|
unsigned int tmp[2];
|
|
|
|
if (umove_or_printaddr(tcp, addr, &tmp))
|
|
return -1;
|
|
pair[0] = tmp[0];
|
|
pair[1] = (int) tmp[1];
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
SYS_FUNC(msgrcv)
|
|
{
|
|
if (entering(tcp)) {
|
|
tprintf("%d, ", (int) tcp->u_arg[0]);
|
|
} else {
|
|
if (indirect_ipccall(tcp)) {
|
|
const bool direct =
|
|
#ifdef SPARC64
|
|
current_wordsize == 8 ||
|
|
#endif
|
|
get_tcb_priv_ulong(tcp) != 0;
|
|
if (direct) {
|
|
tprint_msgrcv(tcp, tcp->u_arg[3],
|
|
tcp->u_arg[1], tcp->u_arg[4]);
|
|
} else {
|
|
kernel_ulong_t pair[2];
|
|
|
|
if (fetch_msgrcv_args(tcp, tcp->u_arg[3], pair))
|
|
tprintf(", %" PRI_klu ", ", tcp->u_arg[1]);
|
|
else
|
|
tprint_msgrcv(tcp, pair[0],
|
|
tcp->u_arg[1], pair[1]);
|
|
}
|
|
printflags(ipc_msg_flags, tcp->u_arg[2], "MSG_???");
|
|
} else {
|
|
tprint_msgrcv(tcp, tcp->u_arg[1],
|
|
tcp->u_arg[2], tcp->u_arg[3]);
|
|
printflags(ipc_msg_flags, tcp->u_arg[4], "MSG_???");
|
|
}
|
|
}
|
|
return 0;
|
|
}
|