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merge compat sys_ipc instances

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2013-01-21 23:15:25 -05:00
parent d5dc77bfee
commit 56e41d3c5a
15 changed files with 52 additions and 315 deletions
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69
arch/mips/kernel/linux32.c
View File

@ -119,75 +119,6 @@ SYSCALL_DEFINE6(32_pwrite, unsigned int, fd, const char __user *, buf,
return sys_pwrite64(fd, buf, count, merge_64(a4, a5));
}
#ifdef CONFIG_SYSVIPC
SYSCALL_DEFINE6(32_ipc, u32, call, long, first, long, second, long, third,
unsigned long, ptr, unsigned long, fifth)
{
int version, err;
version = call >> 16; /* hack for backward compatibility */
call &= 0xffff;
switch (call) {
case SEMOP:
/* struct sembuf is the same on 32 and 64bit :)) */
err = sys_semtimedop(first, compat_ptr(ptr), second, NULL);
break;
case SEMTIMEDOP:
err = compat_sys_semtimedop(first, compat_ptr(ptr), second,
compat_ptr(fifth));
break;
case SEMGET:
err = sys_semget(first, second, third);
break;
case SEMCTL:
err = compat_sys_semctl(first, second, third, compat_ptr(ptr));
break;
case MSGSND:
err = compat_sys_msgsnd(first, second, third, compat_ptr(ptr));
break;
case MSGRCV:
err = compat_sys_msgrcv(first, second, fifth, third,
version, compat_ptr(ptr));
break;
case MSGGET:
err = sys_msgget((key_t) first, second);
break;
case MSGCTL:
err = compat_sys_msgctl(first, second, compat_ptr(ptr));
break;
case SHMAT:
err = compat_sys_shmat(first, second, third, version,
compat_ptr(ptr));
break;
case SHMDT:
err = sys_shmdt(compat_ptr(ptr));
break;
case SHMGET:
err = sys_shmget(first, (unsigned)second, third);
break;
case SHMCTL:
err = compat_sys_shmctl(first, second, compat_ptr(ptr));
break;
default:
err = -EINVAL;
break;
}
return err;
}
#else
SYSCALL_DEFINE6(32_ipc, u32, call, int, first, int, second, int, third,
u32, ptr, u32, fifth)
{
return -ENOSYS;
}
#endif /* CONFIG_SYSVIPC */
#ifdef CONFIG_MIPS32_N32
SYSCALL_DEFINE4(n32_semctl, int, semid, int, semnum, int, cmd, u32, arg)
{

2
arch/mips/kernel/scall64-o32.S
View File

@ -309,7 +309,7 @@ sys_call_table:
PTR compat_sys_wait4
PTR sys_swapoff /* 4115 */
PTR compat_sys_sysinfo
PTR sys_32_ipc
PTR compat_sys_ipc
PTR sys_fsync
PTR sys32_sigreturn
PTR __sys_clone /* 4120 */

67
arch/powerpc/kernel/sys_ppc32.c
View File

@ -61,73 +61,6 @@ asmlinkage long ppc32_select(u32 n, compat_ulong_t __user *inp,
return compat_sys_select((int)n, inp, outp, exp, compat_ptr(tvp_x));
}
#ifdef CONFIG_SYSVIPC
long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr,
u32 fifth)
{
int version;
version = call >> 16; /* hack for backward compatibility */
call &= 0xffff;
switch (call) {
case SEMTIMEDOP:
if (fifth)
/* sign extend semid */
return compat_sys_semtimedop((int)first,
compat_ptr(ptr), second,
compat_ptr(fifth));
/* else fall through for normal semop() */
case SEMOP:
/* struct sembuf is the same on 32 and 64bit :)) */
/* sign extend semid */
return sys_semtimedop((int)first, compat_ptr(ptr), second,
NULL);
case SEMGET:
/* sign extend key, nsems */
return sys_semget((int)first, (int)second, third);
case SEMCTL:
/* sign extend semid, semnum */
return compat_sys_semctl((int)first, (int)second, third,
compat_ptr(ptr));
case MSGSND:
/* sign extend msqid */
return compat_sys_msgsnd((int)first, (int)second, third,
compat_ptr(ptr));
case MSGRCV:
/* sign extend msqid, msgtyp */
return compat_sys_msgrcv((int)first, second, (int)fifth,
third, version, compat_ptr(ptr));
case MSGGET:
/* sign extend key */
return sys_msgget((int)first, second);
case MSGCTL:
/* sign extend msqid */
return compat_sys_msgctl((int)first, second, compat_ptr(ptr));
case SHMAT:
/* sign extend shmid */
return compat_sys_shmat((int)first, second, third, version,
compat_ptr(ptr));
case SHMDT:
return sys_shmdt(compat_ptr(ptr));
case SHMGET:
/* sign extend key_t */
return sys_shmget((int)first, second, third);
case SHMCTL:
/* sign extend shmid */
return compat_sys_shmctl((int)first, second, compat_ptr(ptr));
default:
return -ENOSYS;
}
return -ENOSYS;
}
#endif
unsigned long compat_sys_mmap2(unsigned long addr, size_t len,
unsigned long prot, unsigned long flags,
unsigned long fd, unsigned long pgoff)

44
arch/s390/kernel/compat_linux.c
View File

@ -288,51 +288,13 @@ asmlinkage long sys32_getegid16(void)
return high2lowgid(from_kgid_munged(current_user_ns(), current_egid()));
}
/*
* sys32_ipc() is the de-multiplexer for the SysV IPC calls in 32bit emulation.
*
* This is really horribly ugly.
*/
#ifdef CONFIG_SYSVIPC
asmlinkage long sys32_ipc(u32 call, int first, int second, int third, u32 ptr)
COMPAT_SYSCALL_DEFINE5(s390_ipc, uint, call, int, first, unsigned long, second,
unsigned long, third, compat_uptr_t, ptr)
{
if (call >> 16) /* hack for backward compatibility */
return -EINVAL;
switch (call) {
case SEMTIMEDOP:
return compat_sys_semtimedop(first, compat_ptr(ptr),
second, compat_ptr(third));
case SEMOP:
/* struct sembuf is the same on 32 and 64bit :)) */
return sys_semtimedop(first, compat_ptr(ptr),
second, NULL);
case SEMGET:
return sys_semget(first, second, third);
case SEMCTL:
return compat_sys_semctl(first, second, third,
compat_ptr(ptr));
case MSGSND:
return compat_sys_msgsnd(first, second, third,
compat_ptr(ptr));
case MSGRCV:
return compat_sys_msgrcv(first, second, 0, third,
0, compat_ptr(ptr));
case MSGGET:
return sys_msgget((key_t) first, second);
case MSGCTL:
return compat_sys_msgctl(first, second, compat_ptr(ptr));
case SHMAT:
return compat_sys_shmat(first, second, third,
0, compat_ptr(ptr));
case SHMDT:
return sys_shmdt(compat_ptr(ptr));
case SHMGET:
return sys_shmget(first, (unsigned)second, third);
case SHMCTL:
return compat_sys_shmctl(first, second, compat_ptr(ptr));
}
return -ENOSYS;
return compat_sys_ipc(call, first, second, third, ptr, third);
}
#endif

1
arch/s390/kernel/compat_linux.h
View File

@ -94,7 +94,6 @@ long sys32_getuid16(void);
long sys32_geteuid16(void);
long sys32_getgid16(void);
long sys32_getegid16(void);
long sys32_ipc(u32 call, int first, int second, int third, u32 ptr);
long sys32_truncate64(const char __user * path, unsigned long high,
unsigned long low);
long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low);

8
arch/s390/kernel/compat_wrapper.S
View File

@ -388,14 +388,6 @@ ENTRY(compat_sys_sysinfo_wrapper)
llgtr %r2,%r2 # struct sysinfo_emu31 *
jg compat_sys_sysinfo # branch to system call
ENTRY(sys32_ipc_wrapper)
llgfr %r2,%r2 # uint
lgfr %r3,%r3 # int
lgfr %r4,%r4 # int
lgfr %r5,%r5 # int
llgfr %r6,%r6 # u32
jg sys32_ipc # branch to system call
ENTRY(sys32_fsync_wrapper)
llgfr %r2,%r2 # unsigned int
jg sys_fsync # branch to system call

2
arch/s390/kernel/syscalls.S
View File

@ -125,7 +125,7 @@ NI_SYSCALL /* vm86old for i386 */
SYSCALL(sys_wait4,sys_wait4,compat_sys_wait4)
SYSCALL(sys_swapoff,sys_swapoff,sys32_swapoff_wrapper) /* 115 */
SYSCALL(sys_sysinfo,sys_sysinfo,compat_sys_sysinfo_wrapper)
SYSCALL(sys_s390_ipc,sys_s390_ipc,sys32_ipc_wrapper)
SYSCALL(sys_s390_ipc,sys_s390_ipc,compat_sys_s390_ipc)
SYSCALL(sys_fsync,sys_fsync,sys32_fsync_wrapper)
SYSCALL(sys_sigreturn,sys_sigreturn,sys32_sigreturn)
SYSCALL(sys_clone,sys_clone,sys_clone_wrapper) /* 120 */

65
arch/sparc/kernel/sys_sparc32.c
View File

@ -49,71 +49,6 @@
#include <asm/mmu_context.h>
#include <asm/compat_signal.h>
#ifdef CONFIG_SYSVIPC
asmlinkage long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr, u32 fifth)
{
int version;
version = call >> 16; /* hack for backward compatibility */
call &= 0xffff;
switch (call) {
case SEMTIMEDOP:
if (fifth)
/* sign extend semid */
return compat_sys_semtimedop((int)first,
compat_ptr(ptr), second,
compat_ptr(fifth));
/* else fall through for normal semop() */
case SEMOP:
/* struct sembuf is the same on 32 and 64bit :)) */
/* sign extend semid */
return sys_semtimedop((int)first, compat_ptr(ptr), second,
NULL);
case SEMGET:
/* sign extend key, nsems */
return sys_semget((int)first, (int)second, third);
case SEMCTL:
/* sign extend semid, semnum */
return compat_sys_semctl((int)first, (int)second, third,
compat_ptr(ptr));
case MSGSND:
/* sign extend msqid */
return compat_sys_msgsnd((int)first, (int)second, third,
compat_ptr(ptr));
case MSGRCV:
/* sign extend msqid, msgtyp */
return compat_sys_msgrcv((int)first, second, (int)fifth,
third, version, compat_ptr(ptr));
case MSGGET:
/* sign extend key */
return sys_msgget((int)first, second);
case MSGCTL:
/* sign extend msqid */
return compat_sys_msgctl((int)first, second, compat_ptr(ptr));
case SHMAT:
/* sign extend shmid */
return compat_sys_shmat((int)first, second, third, version,
compat_ptr(ptr));
case SHMDT:
return sys_shmdt(compat_ptr(ptr));
case SHMGET:
/* sign extend key_t */
return sys_shmget((int)first, second, third);
case SHMCTL:
/* sign extend shmid */
return compat_sys_shmctl((int)first, second, compat_ptr(ptr));
default:
return -ENOSYS;
}
return -ENOSYS;
}
#endif
asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low)
{
if ((int)high < 0)

3
arch/x86/ia32/Makefile
View File

@ -5,9 +5,6 @@
obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_signal.o
obj-$(CONFIG_IA32_EMULATION) += nosyscall.o syscall_ia32.o
sysv-$(CONFIG_SYSVIPC) := ipc32.o
obj-$(CONFIG_IA32_EMULATION) += $(sysv-y)
obj-$(CONFIG_IA32_AOUT) += ia32_aout.o
audit-class-$(CONFIG_AUDIT) := audit.o

54
arch/x86/ia32/ipc32.c
View File

@ -1,54 +0,0 @@
#include <linux/kernel.h>
#include <linux/spinlock.h>
#include <linux/list.h>
#include <linux/syscalls.h>
#include <linux/time.h>
#include <linux/sem.h>
#include <linux/msg.h>
#include <linux/shm.h>
#include <linux/ipc.h>
#include <linux/compat.h>
#include <asm/sys_ia32.h>
asmlinkage long sys32_ipc(u32 call, int first, int second, int third,
compat_uptr_t ptr, u32 fifth)
{
int version;
version = call >> 16; /* hack for backward compatibility */
call &= 0xffff;
switch (call) {
case SEMOP:
/* struct sembuf is the same on 32 and 64bit :)) */
return sys_semtimedop(first, compat_ptr(ptr), second, NULL);
case SEMTIMEDOP:
return compat_sys_semtimedop(first, compat_ptr(ptr), second,
compat_ptr(fifth));
case SEMGET:
return sys_semget(first, second, third);
case SEMCTL:
return compat_sys_semctl(first, second, third, compat_ptr(ptr));
case MSGSND:
return compat_sys_msgsnd(first, second, third, compat_ptr(ptr));
case MSGRCV:
return compat_sys_msgrcv(first, second, fifth, third,
version, compat_ptr(ptr));
case MSGGET:
return sys_msgget((key_t) first, second);
case MSGCTL:
return compat_sys_msgctl(first, second, compat_ptr(ptr));
case SHMAT:
return compat_sys_shmat(first, second, third, version,
compat_ptr(ptr));
case SHMDT:
return sys_shmdt(compat_ptr(ptr));
case SHMGET:
return sys_shmget(first, (unsigned)second, third);
case SHMCTL:
return compat_sys_shmctl(first, second, compat_ptr(ptr));
}
return -ENOSYS;
}

3
arch/x86/include/asm/sys_ia32.h
View File

@ -57,9 +57,6 @@ asmlinkage long sys32_fallocate(int, int, unsigned,
asmlinkage long sys32_sigreturn(void);
asmlinkage long sys32_rt_sigreturn(void);
/* ia32/ipc32.c */
asmlinkage long sys32_ipc(u32, int, int, int, compat_uptr_t, u32);
asmlinkage long sys32_fanotify_mark(int, unsigned int, u32, u32, int,
const char __user *);

2
arch/x86/syscalls/syscall_32.tbl
View File

@ -123,7 +123,7 @@
114 i386 wait4 sys_wait4 compat_sys_wait4
115 i386 swapoff sys_swapoff
116 i386 sysinfo sys_sysinfo compat_sys_sysinfo
117 i386 ipc sys_ipc sys32_ipc
117 i386 ipc sys_ipc compat_sys_ipc
118 i386 fsync sys_fsync
119 i386 sigreturn sys_sigreturn stub32_sigreturn
120 i386 clone sys_clone stub32_clone

1
include/linux/compat.h
View File

@ -318,6 +318,7 @@ long compat_sys_msgrcv(int first, int second, int msgtyp, int third,
int version, void __user *uptr);
long compat_sys_shmat(int first, int second, compat_uptr_t third, int version,
void __user *uptr);
asmlinkage long compat_sys_ipc(u32, int, int, u32, compat_uptr_t, u32);
#else
long compat_sys_semctl(int semid, int semnum, int cmd, int arg);
long compat_sys_msgsnd(int msqid, struct compat_msgbuf __user *msgp,

44
ipc/compat.c
View File

@ -368,6 +368,50 @@ long compat_sys_msgrcv(int first, int second, int msgtyp, int third,
return do_msgrcv(first, uptr, second, msgtyp, third,
compat_do_msg_fill);
}
COMPAT_SYSCALL_DEFINE6(ipc, u32, call, int, first, int, second,
u32, third, compat_uptr_t, ptr, u32, fifth)
{
int version;
version = call >> 16; /* hack for backward compatibility */
call &= 0xffff;
switch (call) {
case SEMOP:
/* struct sembuf is the same on 32 and 64bit :)) */
return sys_semtimedop(first, compat_ptr(ptr), second, NULL);
case SEMTIMEDOP:
return compat_sys_semtimedop(first, compat_ptr(ptr), second,
compat_ptr(fifth));
case SEMGET:
return sys_semget(first, second, third);
case SEMCTL:
return compat_sys_semctl(first, second, third, compat_ptr(ptr));
case MSGSND:
return compat_sys_msgsnd(first, second, third, compat_ptr(ptr));
case MSGRCV:
return compat_sys_msgrcv(first, second, fifth, third,
version, compat_ptr(ptr));
case MSGGET:
return sys_msgget(first, second);
case MSGCTL:
return compat_sys_msgctl(first, second, compat_ptr(ptr));
case SHMAT:
return compat_sys_shmat(first, second, third, version,
compat_ptr(ptr));
case SHMDT:
return sys_shmdt(compat_ptr(ptr));
case SHMGET:
return sys_shmget(first, (unsigned)second, third);
case SHMCTL:
return compat_sys_shmctl(first, second, compat_ptr(ptr));
}
return -ENOSYS;
}
#else
long compat_sys_semctl(int semid, int semnum, int cmd, int arg)
{

2
kernel/sys_ni.c
View File

@ -156,7 +156,7 @@ cond_syscall(compat_sys_process_vm_writev);
cond_syscall(sys_pciconfig_read);
cond_syscall(sys_pciconfig_write);
cond_syscall(sys_pciconfig_iobase);
cond_syscall(sys32_ipc);
cond_syscall(compat_sys_s390_ipc);
cond_syscall(ppc_rtas);
cond_syscall(sys_spu_run);
cond_syscall(sys_spu_create);