1c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova/* 2c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * Copyright (c) 1993 Ulrich Pegelow <pegelow@moorea.uni-muenster.de> 3c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl> 4c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com> 5c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl> 6c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * Copyright (c) 2003-2006 Roland McGrath <roland@redhat.com> 7c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * Copyright (c) 2006-2015 Dmitry V. Levin <ldv@altlinux.org> 839bac055674d23770b9a724221b728e443196ea7Elliott Hughes * Copyright (c) 2015-2017 The strace developers. 9c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * All rights reserved. 10c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * 11c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * Redistribution and use in source and binary forms, with or without 12c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * modification, are permitted provided that the following conditions 13c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * are met: 14c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * 1. Redistributions of source code must retain the above copyright 15c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * notice, this list of conditions and the following disclaimer. 16c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * 2. Redistributions in binary form must reproduce the above copyright 17c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * notice, this list of conditions and the following disclaimer in the 18c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * documentation and/or other materials provided with the distribution. 19c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * 3. The name of the author may not be used to endorse or promote products 20c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * derived from this software without specific prior written permission. 21c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * 22c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova */ 33c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova 34c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova#include "defs.h" 35ba10a421b85b7f622975f2e9f92249cfe3dcfcbdMike Frysinger#include "ipc_defs.h" 36c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova 37ba10a421b85b7f622975f2e9f92249cfe3dcfcbdMike Frysinger#ifdef HAVE_SYS_MSG_H 38ba10a421b85b7f622975f2e9f92249cfe3dcfcbdMike Frysinger# include <sys/msg.h> 39ba10a421b85b7f622975f2e9f92249cfe3dcfcbdMike Frysinger#elif defined HAVE_LINUX_MSG_H 40ba10a421b85b7f622975f2e9f92249cfe3dcfcbdMike Frysinger# include <linux/msg.h> 41ba10a421b85b7f622975f2e9f92249cfe3dcfcbdMike Frysinger#endif 42c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova 43c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova#include "xlat/ipc_msg_flags.h" 44c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova#include "xlat/resource_flags.h" 45c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova 46c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira KhabirovaSYS_FUNC(msgget) 47c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova{ 487b93574bc705c2140fdc58fd30c5acefd043571bDmitry V. Levin const int key = (int) tcp->u_arg[0]; 497b93574bc705c2140fdc58fd30c5acefd043571bDmitry V. Levin if (key) 507b93574bc705c2140fdc58fd30c5acefd043571bDmitry V. Levin tprintf("%#x", key); 51c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova else 527b93574bc705c2140fdc58fd30c5acefd043571bDmitry V. Levin tprints("IPC_PRIVATE"); 537b93574bc705c2140fdc58fd30c5acefd043571bDmitry V. Levin tprints(", "); 54c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova if (printflags(resource_flags, tcp->u_arg[1] & ~0777, NULL) != 0) 55c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova tprints("|"); 568d3743868ebce77fe03c5b1ff6435baa8d084293Dmitry V. Levin print_numeric_umode_t(tcp->u_arg[1] & 0777); 57c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova return RVAL_DECODED; 58c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova} 59c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova 60c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirovastatic void 61d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughestprint_msgsnd(struct tcb *const tcp, const kernel_ulong_t addr, 62d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const kernel_ulong_t count, const unsigned int flags) 63c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova{ 64e2fb0bb2cfdf3a8c9374dd9dea5848f212fbfec3Dmitry V. Levin tprint_msgbuf(tcp, addr, count); 65c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova printflags(ipc_msg_flags, flags, "MSG_???"); 66c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova} 67c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova 68c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira KhabirovaSYS_FUNC(msgsnd) 69c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova{ 70c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova tprintf("%d, ", (int) tcp->u_arg[0]); 71c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova if (indirect_ipccall(tcp)) { 72c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova tprint_msgsnd(tcp, tcp->u_arg[3], tcp->u_arg[1], 73c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova tcp->u_arg[2]); 74c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova } else { 75c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova tprint_msgsnd(tcp, tcp->u_arg[1], tcp->u_arg[2], 76c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova tcp->u_arg[3]); 77c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova } 78c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova return RVAL_DECODED; 79c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova} 80c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova 81c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirovastatic void 82d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughestprint_msgrcv(struct tcb *const tcp, const kernel_ulong_t addr, 83d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const kernel_ulong_t count, const kernel_ulong_t msgtyp) 84c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova{ 85e2fb0bb2cfdf3a8c9374dd9dea5848f212fbfec3Dmitry V. Levin tprint_msgbuf(tcp, addr, count); 86d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("%" PRI_kld ", ", msgtyp); 87c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova} 88c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova 89d079fb19f239be3dfb7c7062ce7cae6e908a4f92Elvira Khabirovastatic int 90d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesfetch_msgrcv_args(struct tcb *const tcp, const kernel_ulong_t addr, 91d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes kernel_ulong_t *const pair) 92d079fb19f239be3dfb7c7062ce7cae6e908a4f92Elvira Khabirova{ 93b412d75f747b3cd25300b76d536365b00096bd5eDmitry V. Levin if (current_wordsize == sizeof(*pair)) { 94b412d75f747b3cd25300b76d536365b00096bd5eDmitry V. Levin if (umoven_or_printaddr(tcp, addr, 2 * sizeof(*pair), pair)) 95d079fb19f239be3dfb7c7062ce7cae6e908a4f92Elvira Khabirova return -1; 96d079fb19f239be3dfb7c7062ce7cae6e908a4f92Elvira Khabirova } else { 97d079fb19f239be3dfb7c7062ce7cae6e908a4f92Elvira Khabirova unsigned int tmp[2]; 98d079fb19f239be3dfb7c7062ce7cae6e908a4f92Elvira Khabirova 99d079fb19f239be3dfb7c7062ce7cae6e908a4f92Elvira Khabirova if (umove_or_printaddr(tcp, addr, &tmp)) 100d079fb19f239be3dfb7c7062ce7cae6e908a4f92Elvira Khabirova return -1; 101d079fb19f239be3dfb7c7062ce7cae6e908a4f92Elvira Khabirova pair[0] = tmp[0]; 102d079fb19f239be3dfb7c7062ce7cae6e908a4f92Elvira Khabirova pair[1] = tmp[1]; 103d079fb19f239be3dfb7c7062ce7cae6e908a4f92Elvira Khabirova } 104d079fb19f239be3dfb7c7062ce7cae6e908a4f92Elvira Khabirova return 0; 105d079fb19f239be3dfb7c7062ce7cae6e908a4f92Elvira Khabirova} 106d079fb19f239be3dfb7c7062ce7cae6e908a4f92Elvira Khabirova 107c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira KhabirovaSYS_FUNC(msgrcv) 108c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova{ 109c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova if (entering(tcp)) { 110c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova tprintf("%d, ", (int) tcp->u_arg[0]); 111c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova } else { 112c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova if (indirect_ipccall(tcp)) { 113b412d75f747b3cd25300b76d536365b00096bd5eDmitry V. Levin const bool direct = 114b412d75f747b3cd25300b76d536365b00096bd5eDmitry V. Levin#ifdef SPARC64 115b412d75f747b3cd25300b76d536365b00096bd5eDmitry V. Levin current_wordsize == 8 || 116b412d75f747b3cd25300b76d536365b00096bd5eDmitry V. Levin#endif 117b412d75f747b3cd25300b76d536365b00096bd5eDmitry V. Levin get_tcb_priv_ulong(tcp) != 0; 118b412d75f747b3cd25300b76d536365b00096bd5eDmitry V. Levin if (direct) { 119b412d75f747b3cd25300b76d536365b00096bd5eDmitry V. Levin tprint_msgrcv(tcp, tcp->u_arg[3], 120b412d75f747b3cd25300b76d536365b00096bd5eDmitry V. Levin tcp->u_arg[1], tcp->u_arg[4]); 121b412d75f747b3cd25300b76d536365b00096bd5eDmitry V. Levin } else { 122d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes kernel_ulong_t pair[2]; 123c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova 124b412d75f747b3cd25300b76d536365b00096bd5eDmitry V. Levin if (fetch_msgrcv_args(tcp, tcp->u_arg[3], pair)) 125d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf(", %" PRI_klu ", ", tcp->u_arg[1]); 126b412d75f747b3cd25300b76d536365b00096bd5eDmitry V. Levin else 127b412d75f747b3cd25300b76d536365b00096bd5eDmitry V. Levin tprint_msgrcv(tcp, pair[0], 128b412d75f747b3cd25300b76d536365b00096bd5eDmitry V. Levin tcp->u_arg[1], pair[1]); 129b412d75f747b3cd25300b76d536365b00096bd5eDmitry V. Levin } 130c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova printflags(ipc_msg_flags, tcp->u_arg[2], "MSG_???"); 131c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova } else { 132c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova tprint_msgrcv(tcp, tcp->u_arg[1], 133c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova tcp->u_arg[2], tcp->u_arg[3]); 134c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova printflags(ipc_msg_flags, tcp->u_arg[4], "MSG_???"); 135c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova } 136c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova } 137c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova return 0; 138c01ad06002f6c15fd0c8807e38e452bb240a1f92Elvira Khabirova} 139