11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Conversion between 32-bit and 64-bit native system calls. 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 2000 Silicon Graphics, Inc. 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Written by Ulf Carlsson (ulfc@engr.sgi.com) 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * sys32_execve from ia64/ia32 code, Feb 2000, Kanoj Sarcar (kanoj@sgi.com) 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/compiler.h> 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/mm.h> 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/errno.h> 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/file.h> 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/highuid.h> 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/resource.h> 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/highmem.h> 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/time.h> 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/times.h> 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/poll.h> 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/skbuff.h> 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/filter.h> 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/shm.h> 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/sem.h> 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/msg.h> 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/icmpv6.h> 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/syscalls.h> 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/sysctl.h> 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/utime.h> 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/utsname.h> 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/personality.h> 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/dnotify.h> 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/binfmts.h> 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/security.h> 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/compat.h> 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/vfs.h> 35cba4fbbff2e9722e93b28e18fa7714b9013cbddaAdrian Bunk#include <linux/ipc.h> 365a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <net/sock.h> 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <net/scm.h> 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 41431dc8040354db65e4f8d4d4e21ae4fab41f5bc3Ralf Baechle#include <asm/compat-signal.h> 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/sim.h> 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/uaccess.h> 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/mmu_context.h> 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/mman.h> 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Use this to get at 32-bit user passed pointers. */ 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* A() macro should be used for places where you e.g. 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds have some internal variable u32 and just want to get 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rid of a compiler warning. AA() has to be used in 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds places where you want to convert a function argument 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds to 32bit pointer or when you e.g. access pt_regs 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds structure and want to consider 32bit registers only. 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define A(__x) ((unsigned long)(__x)) 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AA(__x) ((unsigned long)((int)__x)) 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef __MIPSEB__ 5921a151d8ca3aa74ee79f9791a9d4dc370d3e0636Ralf Baechle#define merge_64(r1, r2) ((((r1) & 0xffffffffUL) << 32) + ((r2) & 0xffffffffUL)) 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef __MIPSEL__ 6221a151d8ca3aa74ee79f9791a9d4dc370d3e0636Ralf Baechle#define merge_64(r1, r2) ((((r2) & 0xffffffffUL) << 32) + ((r1) & 0xffffffffUL)) 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 65dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE6(32_mmap2, unsigned long, addr, unsigned long, len, 66dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle unsigned long, prot, unsigned long, flags, unsigned long, fd, 67dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle unsigned long, pgoff) 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long error; 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINVAL; 72947df17cb1be4c7239280a77263c249fde1379efH. Peter Anvin if (pgoff & (~PAGE_MASK >> 12)) 73947df17cb1be4c7239280a77263c249fde1379efH. Peter Anvin goto out; 74f8b7256096a20436f6d0926747e3ac3d64c81d24Al Viro error = sys_mmap_pgoff(addr, len, prot, flags, fd, 75f8b7256096a20436f6d0926747e3ac3d64c81d24Al Viro pgoff >> (PAGE_SHIFT-12)); 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * sys_execve() executes a new program. 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsasmlinkage int sys32_execve(nabi_no_regargs struct pt_regs regs) 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char * filename; 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds filename = getname(compat_ptr(regs.regs[4])); 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = PTR_ERR(filename); 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (IS_ERR(filename)) 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = compat_do_execve(filename, compat_ptr(regs.regs[5]), 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds compat_ptr(regs.regs[6]), ®s); 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds putname(filename); 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RLIM_INFINITY32 0x7fffffff 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x) 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct rlimit32 { 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rlim_cur; 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rlim_max; 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 108dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE4(32_truncate64, const char __user *, path, 109dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle unsigned long, __dummy, unsigned long, a2, unsigned long, a3) 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 111d4e9cffa161da806cb4bc9df4a4e49d287156bfaRalf Baechle return sys_truncate(path, merge_64(a2, a3)); 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 114dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE4(32_ftruncate64, unsigned long, fd, unsigned long, __dummy, 115dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle unsigned long, a2, unsigned long, a3) 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 117d4e9cffa161da806cb4bc9df4a4e49d287156bfaRalf Baechle return sys_ftruncate(fd, merge_64(a2, a3)); 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 120d6c178e9694e7e0c7ffe0289cf4389a498cac735Ralf BaechleSYSCALL_DEFINE5(32_llseek, unsigned int, fd, unsigned int, offset_high, 121d6c178e9694e7e0c7ffe0289cf4389a498cac735Ralf Baechle unsigned int, offset_low, loff_t __user *, result, 122d6c178e9694e7e0c7ffe0289cf4389a498cac735Ralf Baechle unsigned int, origin) 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sys_llseek(fd, offset_high, offset_low, result, origin); 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* From the Single Unix Spec: pread & pwrite act like lseek to pos + op + 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lseek back to original location. They fail just like lseek does on 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds non-seekable files. */ 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 131dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE6(32_pread, unsigned long, fd, char __user *, buf, size_t, count, 132dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle unsigned long, unused, unsigned long, a4, unsigned long, a5) 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1346ad0013b316367671ef316cff91ab2d912e309c9Al Viro return sys_pread64(fd, buf, count, merge_64(a4, a5)); 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 137dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE6(32_pwrite, unsigned int, fd, const char __user *, buf, 138dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle size_t, count, u32, unused, u64, a4, u64, a5) 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1406ad0013b316367671ef316cff91ab2d912e309c9Al Viro return sys_pwrite64(fd, buf, count, merge_64(a4, a5)); 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 143dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE2(32_sched_rr_get_interval, compat_pid_t, pid, 144dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle struct compat_timespec __user *, interval) 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct timespec t; 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 14849a89efbbbcc178a39555c43bd59a7593c429664Ralf Baechle mm_segment_t old_fs = get_fs(); 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15049a89efbbbcc178a39555c43bd59a7593c429664Ralf Baechle set_fs(KERNEL_DS); 151219ac73a7ad17a3ae3d5c07b4fc8c280645a073aAtsushi Nemoto ret = sys_sched_rr_get_interval(pid, (struct timespec __user *)&t); 15249a89efbbbcc178a39555c43bd59a7593c429664Ralf Baechle set_fs(old_fs); 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (put_user (t.tv_sec, &interval->tv_sec) || 15449a89efbbbcc178a39555c43bd59a7593c429664Ralf Baechle __put_user(t.tv_nsec, &interval->tv_nsec)) 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15965f8ebe0630ffadce19a3ed11c7eb41bc6cfabceRalf Baechle#ifdef CONFIG_SYSVIPC 16065f8ebe0630ffadce19a3ed11c7eb41bc6cfabceRalf Baechle 161dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE6(32_ipc, u32, call, long, first, long, second, long, third, 162dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle unsigned long, ptr, unsigned long, fifth) 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int version, err; 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds version = call >> 16; /* hack for backward compatibility */ 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds call &= 0xffff; 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (call) { 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SEMOP: 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* struct sembuf is the same on 32 and 64bit :)) */ 17205e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = sys_semtimedop(first, compat_ptr(ptr), second, NULL); 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SEMTIMEDOP: 17505e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = compat_sys_semtimedop(first, compat_ptr(ptr), second, 17605e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto compat_ptr(fifth)); 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SEMGET: 17905e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = sys_semget(first, second, third); 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SEMCTL: 18205e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = compat_sys_semctl(first, second, third, compat_ptr(ptr)); 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MSGSND: 18505e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = compat_sys_msgsnd(first, second, third, compat_ptr(ptr)); 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MSGRCV: 18805e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = compat_sys_msgrcv(first, second, fifth, third, 18905e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto version, compat_ptr(ptr)); 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MSGGET: 19205e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = sys_msgget((key_t) first, second); 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MSGCTL: 19505e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = compat_sys_msgctl(first, second, compat_ptr(ptr)); 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SHMAT: 19805e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = compat_sys_shmat(first, second, third, version, 19905e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto compat_ptr(ptr)); 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SHMDT: 20205e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = sys_shmdt(compat_ptr(ptr)); 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SHMGET: 20505e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = sys_shmget(first, (unsigned)second, third); 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SHMCTL: 20805e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = compat_sys_shmctl(first, second, compat_ptr(ptr)); 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = -EINVAL; 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21865f8ebe0630ffadce19a3ed11c7eb41bc6cfabceRalf Baechle#else 21965f8ebe0630ffadce19a3ed11c7eb41bc6cfabceRalf Baechle 220dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE6(32_ipc, u32, call, int, first, int, second, int, third, 221c189846ecf900cd6b3ad7d3cef5b45a746ce646bXiaotian Feng u32, ptr, u32, fifth) 22265f8ebe0630ffadce19a3ed11c7eb41bc6cfabceRalf Baechle{ 22365f8ebe0630ffadce19a3ed11c7eb41bc6cfabceRalf Baechle return -ENOSYS; 22465f8ebe0630ffadce19a3ed11c7eb41bc6cfabceRalf Baechle} 22565f8ebe0630ffadce19a3ed11c7eb41bc6cfabceRalf Baechle 22665f8ebe0630ffadce19a3ed11c7eb41bc6cfabceRalf Baechle#endif /* CONFIG_SYSVIPC */ 22765f8ebe0630ffadce19a3ed11c7eb41bc6cfabceRalf Baechle 22805e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto#ifdef CONFIG_MIPS32_N32 229dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE4(n32_semctl, int, semid, int, semnum, int, cmd, u32, arg) 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 23105e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto /* compat_sys_semctl expects a pointer to union semun */ 23205e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto u32 __user *uptr = compat_alloc_user_space(sizeof(u32)); 233e16d8df0be26c8e82c4a1188af8143f2d466b12aAtsushi Nemoto if (put_user(arg, uptr)) 23405e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto return -EFAULT; 23505e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto return compat_sys_semctl(semid, semnum, cmd, uptr); 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 237e16d8df0be26c8e82c4a1188af8143f2d466b12aAtsushi Nemoto 238dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE4(n32_msgsnd, int, msqid, u32, msgp, unsigned int, msgsz, 239dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle int, msgflg) 240e16d8df0be26c8e82c4a1188af8143f2d466b12aAtsushi Nemoto{ 241e16d8df0be26c8e82c4a1188af8143f2d466b12aAtsushi Nemoto return compat_sys_msgsnd(msqid, msgsz, msgflg, compat_ptr(msgp)); 242e16d8df0be26c8e82c4a1188af8143f2d466b12aAtsushi Nemoto} 243e16d8df0be26c8e82c4a1188af8143f2d466b12aAtsushi Nemoto 244dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE5(n32_msgrcv, int, msqid, u32, msgp, size_t, msgsz, 245dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle int, msgtyp, int, msgflg) 246e16d8df0be26c8e82c4a1188af8143f2d466b12aAtsushi Nemoto{ 247e16d8df0be26c8e82c4a1188af8143f2d466b12aAtsushi Nemoto return compat_sys_msgrcv(msqid, msgsz, msgtyp, msgflg, IPC_64, 248e16d8df0be26c8e82c4a1188af8143f2d466b12aAtsushi Nemoto compat_ptr(msgp)); 249e16d8df0be26c8e82c4a1188af8143f2d466b12aAtsushi Nemoto} 25005e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto#endif 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 252dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE1(32_personality, unsigned long, personality) 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 254d62c9ced7ca783e64ff4d9d3d1340cfe2284d47bDavid Daney unsigned int p = personality & 0xffffffff; 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 256d62c9ced7ca783e64ff4d9d3d1340cfe2284d47bDavid Daney 25753571ce47010562f5e67782ea00206f379a5cd65Thiemo Seufer if (personality(current->personality) == PER_LINUX32 && 258d62c9ced7ca783e64ff4d9d3d1340cfe2284d47bDavid Daney personality(p) == PER_LINUX) 259d62c9ced7ca783e64ff4d9d3d1340cfe2284d47bDavid Daney p = (p & ~PER_MASK) | PER_LINUX32; 260d62c9ced7ca783e64ff4d9d3d1340cfe2284d47bDavid Daney ret = sys_personality(p); 261d62c9ced7ca783e64ff4d9d3d1340cfe2284d47bDavid Daney if (ret != -1 && personality(ret) == PER_LINUX32) 262d62c9ced7ca783e64ff4d9d3d1340cfe2284d47bDavid Daney ret = (ret & ~PER_MASK) | PER_LINUX; 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 266dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE4(32_sendfile, long, out_fd, long, in_fd, 267dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle compat_off_t __user *, offset, s32, count) 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mm_segment_t old_fs = get_fs(); 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds off_t of; 27242a3b4f25af8f8d77feddf27f839fa0628dbff1aRalf Baechle 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (offset && get_user(of, offset)) 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 27542a3b4f25af8f8d77feddf27f839fa0628dbff1aRalf Baechle 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_fs(KERNEL_DS); 277219ac73a7ad17a3ae3d5c07b4fc8c280645a073aAtsushi Nemoto ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *)&of : NULL, count); 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_fs(old_fs); 27942a3b4f25af8f8d77feddf27f839fa0628dbff1aRalf Baechle 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (offset && put_user(of, offset)) 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 28242a3b4f25af8f8d77feddf27f839fa0628dbff1aRalf Baechle 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsasmlinkage ssize_t sys32_readahead(int fd, u32 pad0, u64 a2, u64 a3, 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds size_t count) 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sys_readahead(fd, merge_64(a2, a3), count); 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 292a8d587a71b76328447de165b12495650721b9286Ralf Baechleasmlinkage long sys32_sync_file_range(int fd, int __pad, 293a8d587a71b76328447de165b12495650721b9286Ralf Baechle unsigned long a2, unsigned long a3, 294a8d587a71b76328447de165b12495650721b9286Ralf Baechle unsigned long a4, unsigned long a5, 295a8d587a71b76328447de165b12495650721b9286Ralf Baechle int flags) 296a8d587a71b76328447de165b12495650721b9286Ralf Baechle{ 297a8d587a71b76328447de165b12495650721b9286Ralf Baechle return sys_sync_file_range(fd, 298a8d587a71b76328447de165b12495650721b9286Ralf Baechle merge_64(a2, a3), merge_64(a4, a5), 299a8d587a71b76328447de165b12495650721b9286Ralf Baechle flags); 300a8d587a71b76328447de165b12495650721b9286Ralf Baechle} 301a8d587a71b76328447de165b12495650721b9286Ralf Baechle 3028676d2e0244cbef294c7d9ad6e50048f9dfba9e0Atsushi Nemotoasmlinkage long sys32_fadvise64_64(int fd, int __pad, 3038676d2e0244cbef294c7d9ad6e50048f9dfba9e0Atsushi Nemoto unsigned long a2, unsigned long a3, 3048676d2e0244cbef294c7d9ad6e50048f9dfba9e0Atsushi Nemoto unsigned long a4, unsigned long a5, 3058676d2e0244cbef294c7d9ad6e50048f9dfba9e0Atsushi Nemoto int flags) 3068676d2e0244cbef294c7d9ad6e50048f9dfba9e0Atsushi Nemoto{ 3078676d2e0244cbef294c7d9ad6e50048f9dfba9e0Atsushi Nemoto return sys_fadvise64_64(fd, 3088676d2e0244cbef294c7d9ad6e50048f9dfba9e0Atsushi Nemoto merge_64(a2, a3), merge_64(a4, a5), 3098676d2e0244cbef294c7d9ad6e50048f9dfba9e0Atsushi Nemoto flags); 3108676d2e0244cbef294c7d9ad6e50048f9dfba9e0Atsushi Nemoto} 3118676d2e0244cbef294c7d9ad6e50048f9dfba9e0Atsushi Nemoto 3124dc467756e77838c592a6dc797434f11761d33f5Ralf Baechleasmlinkage long sys32_fallocate(int fd, int mode, unsigned offset_a2, 3134dc467756e77838c592a6dc797434f11761d33f5Ralf Baechle unsigned offset_a3, unsigned len_a4, unsigned len_a5) 3144dc467756e77838c592a6dc797434f11761d33f5Ralf Baechle{ 3154dc467756e77838c592a6dc797434f11761d33f5Ralf Baechle return sys_fallocate(fd, mode, merge_64(offset_a2, offset_a3), 3164dc467756e77838c592a6dc797434f11761d33f5Ralf Baechle merge_64(len_a4, len_a5)); 3174dc467756e77838c592a6dc797434f11761d33f5Ralf Baechle} 3184dc467756e77838c592a6dc797434f11761d33f5Ralf Baechle 3193c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechlesave_static_function(sys32_clone); 320f5dbeaf5ed3938beea8e58ee473982a4bcadc172David Rientjesstatic int noinline __used 3213c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle_sys32_clone(nabi_no_regargs struct pt_regs regs) 3223c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle{ 3233c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle unsigned long clone_flags; 3243c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle unsigned long newsp; 3253c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle int __user *parent_tidptr, *child_tidptr; 3263c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle 3273c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle clone_flags = regs.regs[4]; 3283c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle newsp = regs.regs[5]; 3293c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle if (!newsp) 3303c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle newsp = regs.regs[29]; 331219ac73a7ad17a3ae3d5c07b4fc8c280645a073aAtsushi Nemoto parent_tidptr = (int __user *) regs.regs[6]; 3323c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle 3333c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle /* Use __dummy4 instead of getting it off the stack, so that 3343c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle syscall() works. */ 3353c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle child_tidptr = (int __user *) __dummy4; 3363c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle return do_fork(clone_flags, newsp, ®s, 0, 3373c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle parent_tidptr, child_tidptr); 3383c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle} 33980b8585b07feede94a742c4cdb80ab607a8813b3Wu Zhangjin 34080b8585b07feede94a742c4cdb80ab607a8813b3Wu Zhangjinasmlinkage long sys32_lookup_dcookie(u32 a0, u32 a1, char __user *buf, 34180b8585b07feede94a742c4cdb80ab607a8813b3Wu Zhangjin size_t len) 34280b8585b07feede94a742c4cdb80ab607a8813b3Wu Zhangjin{ 34380b8585b07feede94a742c4cdb80ab607a8813b3Wu Zhangjin return sys_lookup_dcookie(merge_64(a0, a1), buf, len); 34480b8585b07feede94a742c4cdb80ab607a8813b3Wu Zhangjin} 3455e844b31c2ace282ab8bea630b63e0212d9532d4David Daney 3465e844b31c2ace282ab8bea630b63e0212d9532d4David DaneySYSCALL_DEFINE6(32_fanotify_mark, int, fanotify_fd, unsigned int, flags, 3475e844b31c2ace282ab8bea630b63e0212d9532d4David Daney u64, a3, u64, a4, int, dfd, const char __user *, pathname) 3485e844b31c2ace282ab8bea630b63e0212d9532d4David Daney{ 3495e844b31c2ace282ab8bea630b63e0212d9532d4David Daney return sys_fanotify_mark(fanotify_fd, flags, merge_64(a3, a4), 3505e844b31c2ace282ab8bea630b63e0212d9532d4David Daney dfd, pathname); 3515e844b31c2ace282ab8bea630b63e0212d9532d4David Daney} 3521eec6cd08b4feb72a73aff468ab72bdd21e1dc61Yong Zhang 3531eec6cd08b4feb72a73aff468ab72bdd21e1dc61Yong ZhangSYSCALL_DEFINE6(32_futex, u32 __user *, uaddr, int, op, u32, val, 3541eec6cd08b4feb72a73aff468ab72bdd21e1dc61Yong Zhang struct compat_timespec __user *, utime, u32 __user *, uaddr2, 3551eec6cd08b4feb72a73aff468ab72bdd21e1dc61Yong Zhang u32, val3) 3561eec6cd08b4feb72a73aff468ab72bdd21e1dc61Yong Zhang{ 3571eec6cd08b4feb72a73aff468ab72bdd21e1dc61Yong Zhang return compat_sys_futex(uaddr, op, val, utime, uaddr2, val3); 3581eec6cd08b4feb72a73aff468ab72bdd21e1dc61Yong Zhang} 359