Branch data Line data Source code
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(shmid_ds_t)
36 : :
37 : : #include "ipc_defs.h"
38 : :
39 : : #ifdef HAVE_SYS_SHM_H
40 : : /* The C library generally exports the struct the current kernel expects. */
41 : : # include <sys/shm.h>
42 : : typedef struct shmid_ds shmid_ds_t;
43 : : #elif defined HAVE_LINUX_SHM_H
44 : : /* The linux header might provide the right struct. */
45 : : # include <linux/shm.h>
46 : : typedef struct shmid64_ds shmid_ds_t;
47 : : #endif
48 : :
49 : : #include MPERS_DEFS
50 : :
51 : : #include "xlat/shmctl_flags.h"
52 : :
53 : : static void
54 : 42 : print_shmid_ds(struct tcb *const tcp, const kernel_ulong_t addr, int cmd)
55 : : {
56 : : /* TODO: We don't properly decode old compat ipc calls. */
57 [ + + ]: 42 : if (cmd & IPC_64)
58 : 7 : cmd &= ~IPC_64;
59 : : shmid_ds_t shmid_ds;
60 [ + + ]: 42 : switch (cmd) {
61 : : case IPC_SET:
62 : : case IPC_STAT:
63 [ + + ]: 18 : if (umove_or_printaddr(tcp, addr, &shmid_ds))
64 : 6 : return;
65 : :
66 : 12 : tprints("{shm_perm={");
67 : 12 : printuid("uid=", shmid_ds.shm_perm.uid);
68 : 12 : printuid(", gid=", shmid_ds.shm_perm.gid);
69 : 12 : tprints(", mode=");
70 : 12 : print_numeric_umode_t(shmid_ds.shm_perm.mode);
71 : :
72 [ + + ]: 12 : if (cmd != IPC_STAT) {
73 : 6 : tprints("}, ...}");
74 : 6 : break;
75 : : }
76 : :
77 : 6 : tprintf(", key=%u", (unsigned) shmid_ds.shm_perm.__key);
78 : 6 : printuid(", cuid=", shmid_ds.shm_perm.cuid);
79 : 6 : printuid(", cgid=", shmid_ds.shm_perm.cgid);
80 : 6 : tprints("}");
81 : 6 : tprintf(", shm_segsz=%u", (unsigned) shmid_ds.shm_segsz);
82 : 6 : tprintf(", shm_cpid=%u", (unsigned) shmid_ds.shm_cpid);
83 : 6 : tprintf(", shm_lpid=%u", (unsigned) shmid_ds.shm_lpid);
84 : 6 : tprintf(", shm_nattch=%u", (unsigned) shmid_ds.shm_nattch);
85 : 6 : tprintf(", shm_atime=%u", (unsigned) shmid_ds.shm_atime);
86 : 6 : tprintf(", shm_dtime=%u", (unsigned) shmid_ds.shm_dtime);
87 : 6 : tprintf(", shm_ctime=%u", (unsigned) shmid_ds.shm_ctime);
88 : 6 : tprints("}");
89 : 6 : break;
90 : :
91 : : default:
92 : 24 : printaddr(addr);
93 : 36 : break;
94 : : }
95 : : }
96 : :
97 : 84 : SYS_FUNC(shmctl)
98 : : {
99 [ + + ]: 84 : if (entering(tcp)) {
100 : 42 : tprintf("%d, ", (int) tcp->u_arg[0]);
101 [ + + ]: 42 : PRINTCTL(shmctl_flags, tcp->u_arg[1], "SHM_???");
102 : 42 : tprints(", ");
103 : : } else {
104 [ + + ]: 42 : const kernel_ulong_t addr = tcp->u_arg[indirect_ipccall(tcp) ? 3 : 2];
105 : 42 : print_shmid_ds(tcp, addr, tcp->u_arg[1]);
106 : : }
107 : 84 : return 0;
108 : : }
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