1 /*
2 * Copyright (c) 1993 Ulrich Pegelow <pegelow@moorea.uni-muenster.de>
3 * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
4 * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
5 * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
6 * Copyright (c) 2003-2006 Roland McGrath <roland@redhat.com>
7 * Copyright (c) 2006-2015 Dmitry V. Levin <ldv@altlinux.org>
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 #include "defs.h"
34
35 #include DEF_MPERS_TYPE(msqid_ds_t)
36
37 #include "ipc_defs.h"
38
39 #ifdef HAVE_SYS_MSG_H
40 /* The C library generally exports the struct the current kernel expects. */
41 # include <sys/msg.h>
42 typedef struct msqid_ds msqid_ds_t;
43 #elif defined HAVE_LINUX_MSG_H
44 /* The linux header might provide the right struct. */
45 # include <linux/msg.h>
46 typedef struct msqid64_ds msqid_ds_t;
47 #endif
48
49 #include MPERS_DEFS
50
51 #include "xlat/msgctl_flags.h"
52
53 static void
print_msqid_ds(struct tcb * tcp,const long addr,int cmd)54 print_msqid_ds(struct tcb *tcp, const long addr, int cmd)
55 {
56 /* TODO: We don't properly decode old compat ipc calls. */
57 if (cmd & IPC_64)
58 cmd &= ~IPC_64;
59 msqid_ds_t msqid_ds;
60 switch (cmd) {
61 case IPC_SET:
62 case IPC_STAT:
63 if (umove_or_printaddr(tcp, addr, &msqid_ds))
64 return;
65
66 tprints("{msg_perm={");
67 printuid("uid=", msqid_ds.msg_perm.uid);
68 printuid(", gid=", msqid_ds.msg_perm.gid);
69 tprints(", mode=");
70 tprints(sprintmode(msqid_ds.msg_perm.mode));
71
72 if (cmd != IPC_STAT) {
73 tprints("}, ...}");
74 break;
75 }
76
77 tprintf(", key=%u", (unsigned) msqid_ds.msg_perm.__key);
78 printuid(", cuid=", msqid_ds.msg_perm.cuid);
79 printuid(", cgid=", msqid_ds.msg_perm.cgid);
80 tprints("}");
81 tprintf(", msg_stime=%u", (unsigned) msqid_ds.msg_stime);
82 tprintf(", msg_rtime=%u", (unsigned) msqid_ds.msg_rtime);
83 tprintf(", msg_ctime=%u", (unsigned) msqid_ds.msg_ctime);
84 tprintf(", msg_qnum=%u", (unsigned) msqid_ds.msg_qnum);
85 tprintf(", msg_qbytes=%u", (unsigned) msqid_ds.msg_qbytes);
86 tprintf(", msg_lspid=%u", (unsigned) msqid_ds.msg_lspid);
87 tprintf(", msg_lrpid=%u", (unsigned) msqid_ds.msg_lrpid);
88 tprints("}");
89 break;
90
91 default:
92 printaddr(addr);
93 break;
94 }
95 }
96
SYS_FUNC(msgctl)97 SYS_FUNC(msgctl)
98 {
99 if (entering(tcp)) {
100 tprintf("%lu, ", tcp->u_arg[0]);
101 PRINTCTL(msgctl_flags, tcp->u_arg[1], "MSG_???");
102 tprints(", ");
103 } else {
104 const long addr = tcp->u_arg[indirect_ipccall(tcp) ? 3 : 2];
105 print_msqid_ds(tcp, addr, tcp->u_arg[1]);
106 }
107 return 0;
108 }
109