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> 42typedef 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> 46typedef struct shmid64_ds shmid_ds_t; 47#endif 48 49#include MPERS_DEFS 50 51#include "xlat/shmctl_flags.h" 52 53static void 54print_shmid_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 shmid_ds_t shmid_ds; 60 switch (cmd) { 61 case IPC_SET: 62 case IPC_STAT: 63 if (umove_or_printaddr(tcp, addr, &shmid_ds)) 64 return; 65 66 tprints("{shm_perm={"); 67 printuid("uid=", shmid_ds.shm_perm.uid); 68 printuid(", gid=", shmid_ds.shm_perm.gid); 69 tprints(", mode="); 70 tprints(sprintmode(shmid_ds.shm_perm.mode)); 71 72 if (cmd != IPC_STAT) { 73 tprints("}, ...}"); 74 break; 75 } 76 77 tprintf(", key=%u", (unsigned) shmid_ds.shm_perm.__key); 78 printuid(", cuid=", shmid_ds.shm_perm.cuid); 79 printuid(", cgid=", shmid_ds.shm_perm.cgid); 80 tprints("}"); 81 tprintf(", shm_segsz=%u", (unsigned) shmid_ds.shm_segsz); 82 tprintf(", shm_cpid=%u", (unsigned) shmid_ds.shm_cpid); 83 tprintf(", shm_lpid=%u", (unsigned) shmid_ds.shm_lpid); 84 tprintf(", shm_nattch=%u", (unsigned) shmid_ds.shm_nattch); 85 tprintf(", shm_atime=%u", (unsigned) shmid_ds.shm_atime); 86 tprintf(", shm_dtime=%u", (unsigned) shmid_ds.shm_dtime); 87 tprintf(", shm_ctime=%u", (unsigned) shmid_ds.shm_ctime); 88 tprints("}"); 89 break; 90 91 default: 92 printaddr(addr); 93 break; 94 } 95} 96 97SYS_FUNC(shmctl) 98{ 99 if (entering(tcp)) { 100 tprintf("%lu, ", tcp->u_arg[0]); 101 PRINTCTL(shmctl_flags, tcp->u_arg[1], "SHM_???"); 102 tprints(", "); 103 } else { 104 const long addr = tcp->u_arg[indirect_ipccall(tcp) ? 3 : 2]; 105 print_shmid_ds(tcp, addr, tcp->u_arg[1]); 106 } 107 return 0; 108} 109