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/*
* 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) 2015-2020 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "defs.h"
#include DEF_MPERS_TYPE(msqid_ds_t)
#include "ipc_defs.h"
#include MSG_H_PROVIDER
typedef struct NAME_OF_STRUCT_MSQID_DS msqid_ds_t;
#include MPERS_DEFS
#include "xlat/msgctl_flags.h"
static void
print_msqid_ds(struct tcb *const tcp, const kernel_ulong_t addr, int cmd)
{
/* TODO: We don't properly decode old compat ipc calls. */
if (cmd & IPC_64)
cmd &= ~IPC_64;
msqid_ds_t msqid_ds;
switch (cmd) {
case IPC_SET:
case IPC_STAT:
if (umove_or_printaddr(tcp, addr, &msqid_ds))
return;
tprints("{msg_perm={");
printuid("uid=", msqid_ds.msg_perm.uid);
printuid(", gid=", msqid_ds.msg_perm.gid);
tprints(", mode=");
print_numeric_umode_t(msqid_ds.msg_perm.mode);
if (cmd != IPC_STAT) {
tprints("}, ...}");
break;
}
tprintf(", key=%u",
(unsigned) msqid_ds.msg_perm.NAME_OF_STRUCT_IPC_PERM_KEY);
printuid(", cuid=", msqid_ds.msg_perm.cuid);
printuid(", cgid=", msqid_ds.msg_perm.cgid);
tprints("}");
tprintf(", msg_stime=%u", (unsigned) msqid_ds.msg_stime);
tprintf(", msg_rtime=%u", (unsigned) msqid_ds.msg_rtime);
tprintf(", msg_ctime=%u", (unsigned) msqid_ds.msg_ctime);
tprintf(", msg_qnum=%u", (unsigned) msqid_ds.msg_qnum);
tprintf(", msg_qbytes=%u", (unsigned) msqid_ds.msg_qbytes);
tprintf(", msg_lspid=%u", (unsigned) msqid_ds.msg_lspid);
tprintf(", msg_lrpid=%u", (unsigned) msqid_ds.msg_lrpid);
tprints("}");
break;
default:
printaddr(addr);
break;
}
}
SYS_FUNC(msgctl)
{
if (entering(tcp)) {
tprintf("%d, ", (int) tcp->u_arg[0]);
PRINTCTL(msgctl_flags, tcp->u_arg[1], "MSG_???");
tprints(", ");
} else {
const kernel_ulong_t addr = tcp->u_arg[indirect_ipccall(tcp) ? 3 : 2];
print_msqid_ds(tcp, addr, tcp->u_arg[1]);
}
return 0;
}
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