1 /* 2 * Copyright (c) 1993 Ulrich Pegelow <pegelow (at) moorea.uni-muenster.de> 3 * Copyright (c) 1993 Branko Lankester <branko (at) hacktic.nl> 4 * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs (at) world.std.com> 5 * Copyright (c) 1996-1999 Wichert Akkerman <wichert (at) cistron.nl> 6 * Copyright (c) 2003-2006 Roland McGrath <roland (at) redhat.com> 7 * Copyright (c) 2006-2015 Dmitry V. Levin <ldv (at) 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 54 print_msqid_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 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 print_numeric_umode_t(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 97 SYS_FUNC(msgctl) 98 { 99 if (entering(tcp)) { 100 tprintf("%d, ", (int) tcp->u_arg[0]); 101 PRINTCTL(msgctl_flags, tcp->u_arg[1], "MSG_???"); 102 tprints(", "); 103 } else { 104 const kernel_ulong_t 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
