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Mark arguments to certain syscalls as being const

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Mark arguments to certain system calls as being const where they should be but
aren't.  The list includes:

 (*) The filename arguments of various stat syscalls, execve(), various utimes
     syscalls and some mount syscalls.

 (*) The filename arguments of some syscall helpers relating to the above.

 (*) The buffer argument of various write syscalls.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
David Howells 2010-08-11 11:26:22 +01:00 committed by Linus Torvalds
parent b84ae4a140
commit c788732523
44 changed files with 125 additions and 109 deletions
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6
arch/alpha/kernel/osf_sys.c
View File

@ -244,7 +244,7 @@ do_osf_statfs(struct path *path, struct osf_statfs __user *buffer,
return error;
}
SYSCALL_DEFINE3(osf_statfs, char __user *, pathname,
SYSCALL_DEFINE3(osf_statfs, const char __user *, pathname,
struct osf_statfs __user *, buffer, unsigned long, bufsiz)
{
struct path path;
@ -358,7 +358,7 @@ osf_procfs_mount(char *dirname, struct procfs_args __user *args, int flags)
return do_mount("", dirname, "proc", flags, NULL);
}
SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, char __user *, path,
SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, const char __user *, path,
int, flag, void __user *, data)
{
int retval;
@ -932,7 +932,7 @@ SYSCALL_DEFINE3(osf_setitimer, int, which, struct itimerval32 __user *, in,
}
SYSCALL_DEFINE2(osf_utimes, char __user *, filename,
SYSCALL_DEFINE2(osf_utimes, const char __user *, filename,
struct timeval32 __user *, tvs)
{
struct timespec tv[2];

2
arch/alpha/kernel/process.c
View File

@ -387,7 +387,7 @@ EXPORT_SYMBOL(dump_elf_task_fp);
* sys_execve() executes a new program.
*/
asmlinkage int
do_sys_execve(char __user *ufilename, char __user * __user *argv,
do_sys_execve(const char __user *ufilename, char __user * __user *argv,
char __user * __user *envp, struct pt_regs *regs)
{
int error;

4
arch/arm/kernel/sys_arm.c
View File

@ -62,7 +62,7 @@ asmlinkage int sys_vfork(struct pt_regs *regs)
/* sys_execve() executes a new program.
* This is called indirectly via a small wrapper
*/
asmlinkage int sys_execve(char __user *filenamei, char __user * __user *argv,
asmlinkage int sys_execve(const char __user *filenamei, char __user * __user *argv,
char __user * __user *envp, struct pt_regs *regs)
{
int error;
@ -84,7 +84,7 @@ int kernel_execve(const char *filename, char *const argv[], char *const envp[])
int ret;
memset(&regs, 0, sizeof(struct pt_regs));
ret = do_execve((char *)filename, (char __user * __user *)argv,
ret = do_execve(filename, (char __user * __user *)argv,
(char __user * __user *)envp, &regs);
if (ret < 0)
goto out;

6
arch/arm/kernel/sys_oabi-compat.c
View File

@ -141,7 +141,7 @@ static long cp_oldabi_stat64(struct kstat *stat,
return copy_to_user(statbuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;
}
asmlinkage long sys_oabi_stat64(char __user * filename,
asmlinkage long sys_oabi_stat64(const char __user * filename,
struct oldabi_stat64 __user * statbuf)
{
struct kstat stat;
@ -151,7 +151,7 @@ asmlinkage long sys_oabi_stat64(char __user * filename,
return error;
}
asmlinkage long sys_oabi_lstat64(char __user * filename,
asmlinkage long sys_oabi_lstat64(const char __user * filename,
struct oldabi_stat64 __user * statbuf)
{
struct kstat stat;
@ -172,7 +172,7 @@ asmlinkage long sys_oabi_fstat64(unsigned long fd,
}
asmlinkage long sys_oabi_fstatat64(int dfd,
char __user *filename,
const char __user *filename,
struct oldabi_stat64 __user *statbuf,
int flag)
{

2
arch/avr32/include/asm/syscalls.h
View File

@ -21,7 +21,7 @@ asmlinkage int sys_clone(unsigned long, unsigned long,
unsigned long, unsigned long,
struct pt_regs *);
asmlinkage int sys_vfork(struct pt_regs *);
asmlinkage int sys_execve(char __user *, char __user *__user *,
asmlinkage int sys_execve(const char __user *, char __user *__user *,
char __user *__user *, struct pt_regs *);
/* kernel/signal.c */

3
arch/avr32/kernel/process.c
View File

@ -383,7 +383,8 @@ asmlinkage int sys_vfork(struct pt_regs *regs)
0, NULL, NULL);
}
asmlinkage int sys_execve(char __user *ufilename, char __user *__user *uargv,
asmlinkage int sys_execve(const char __user *ufilename,
char __user *__user *uargv,
char __user *__user *uenvp, struct pt_regs *regs)
{
int error;

2
arch/blackfin/kernel/process.c
View File

@ -209,7 +209,7 @@ copy_thread(unsigned long clone_flags,
/*
* sys_execve() executes a new program.
*/
asmlinkage int sys_execve(char __user *name, char __user * __user *argv, char __user * __user *envp)
asmlinkage int sys_execve(const char __user *name, char __user * __user *argv, char __user * __user *envp)
{
int error;
char *filename;

3
arch/frv/kernel/process.c
View File

@ -250,7 +250,8 @@ int copy_thread(unsigned long clone_flags,
/*
* sys_execve() executes a new program.
*/
asmlinkage int sys_execve(char __user *name, char __user * __user *argv, char __user * __user *envp)
asmlinkage int sys_execve(const char __user *name, char __user * __user *argv,
char __user * __user *envp)
{
int error;
char * filename;

2
arch/h8300/kernel/process.c
View File

@ -212,7 +212,7 @@ int copy_thread(unsigned long clone_flags,
/*
* sys_execve() executes a new program.
*/
asmlinkage int sys_execve(char *name, char **argv, char **envp,int dummy,...)
asmlinkage int sys_execve(const char *name, char **argv, char **envp,int dummy,...)
{
int error;
char * filename;

2
arch/ia64/include/asm/unistd.h
View File

@ -353,7 +353,7 @@ asmlinkage unsigned long sys_mmap2(
int fd, long pgoff);
struct pt_regs;
struct sigaction;
long sys_execve(char __user *filename, char __user * __user *argv,
long sys_execve(const char __user *filename, char __user * __user *argv,
char __user * __user *envp, struct pt_regs *regs);
asmlinkage long sys_ia64_pipe(void);
asmlinkage long sys_rt_sigaction(int sig,

2
arch/ia64/kernel/process.c
View File

@ -633,7 +633,7 @@ dump_fpu (struct pt_regs *pt, elf_fpregset_t dst)
}
long
sys_execve (char __user *filename, char __user * __user *argv, char __user * __user *envp,
sys_execve (const char __user *filename, char __user * __user *argv, char __user * __user *envp,
struct pt_regs *regs)
{
char *fname;

3
arch/m32r/kernel/process.c
View File

@ -288,7 +288,8 @@ asmlinkage int sys_vfork(unsigned long r0, unsigned long r1, unsigned long r2,
/*
* sys_execve() executes a new program.
*/
asmlinkage int sys_execve(char __user *ufilename, char __user * __user *uargv,
asmlinkage int sys_execve(const char __user *ufilename,
char __user * __user *uargv,
char __user * __user *uenvp,
unsigned long r3, unsigned long r4, unsigned long r5,
unsigned long r6, struct pt_regs regs)

2
arch/m68k/kernel/process.c
View File

@ -315,7 +315,7 @@ EXPORT_SYMBOL(dump_fpu);
/*
* sys_execve() executes a new program.
*/
asmlinkage int sys_execve(char __user *name, char __user * __user *argv, char __user * __user *envp)
asmlinkage int sys_execve(const char __user *name, char __user * __user *argv, char __user * __user *envp)
{
int error;
char * filename;

2
arch/m68knommu/kernel/process.c
View File

@ -350,7 +350,7 @@ void dump(struct pt_regs *fp)
/*
* sys_execve() executes a new program.
*/
asmlinkage int sys_execve(char *name, char **argv, char **envp)
asmlinkage int sys_execve(const char *name, char **argv, char **envp)
{
int error;
char * filename;

2
arch/microblaze/kernel/sys_microblaze.c
View File

@ -47,7 +47,7 @@ asmlinkage long microblaze_clone(int flags, unsigned long stack, struct pt_regs
return do_fork(flags, stack, regs, 0, NULL, NULL);
}
asmlinkage long microblaze_execve(char __user *filenamei, char __user *__user *argv,
asmlinkage long microblaze_execve(const char __user *filenamei, char __user *__user *argv,
char __user *__user *envp, struct pt_regs *regs)
{
int error;

2
arch/mips/kernel/syscall.c
View File

@ -254,7 +254,7 @@ asmlinkage int sys_execve(nabi_no_regargs struct pt_regs regs)
int error;
char * filename;
filename = getname((char __user *) (long)regs.regs[4]);
filename = getname((const char __user *) (long)regs.regs[4]);
error = PTR_ERR(filename);
if (IS_ERR(filename))
goto out;

2
arch/mn10300/kernel/process.c
View File

@ -268,7 +268,7 @@ asmlinkage long sys_vfork(void)
0, NULL, NULL);
}
asmlinkage long sys_execve(char __user *name,
asmlinkage long sys_execve(const char __user *name,
char __user * __user *argv,
char __user * __user *envp)
{

7
arch/parisc/hpux/fs.c
View File

@ -36,7 +36,7 @@ int hpux_execve(struct pt_regs *regs)
int error;
char *filename;
filename = getname((char __user *) regs->gr[26]);
filename = getname((const char __user *) regs->gr[26]);
error = PTR_ERR(filename);
if (IS_ERR(filename))
goto out;
@ -169,7 +169,7 @@ static int cp_hpux_stat(struct kstat *stat, struct hpux_stat64 __user *statbuf)
return copy_to_user(statbuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;
}
long hpux_stat64(char __user *filename, struct hpux_stat64 __user *statbuf)
long hpux_stat64(const char __user *filename, struct hpux_stat64 __user *statbuf)
{
struct kstat stat;
int error = vfs_stat(filename, &stat);
@ -191,7 +191,8 @@ long hpux_fstat64(unsigned int fd, struct hpux_stat64 __user *statbuf)
return error;
}
long hpux_lstat64(char __user *filename, struct hpux_stat64 __user *statbuf)
long hpux_lstat64(const char __user *filename,
struct hpux_stat64 __user *statbuf)
{
struct kstat stat;
int error = vfs_lstat(filename, &stat);

2
arch/powerpc/kernel/process.c
View File

@ -1027,7 +1027,7 @@ int sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
int error;
char *filename;
filename = getname((char __user *) a0);
filename = getname((const char __user *) a0);
error = PTR_ERR(filename);
if (IS_ERR(filename))
goto out;

2
arch/powerpc/kernel/sys_ppc32.c
View File

@ -546,7 +546,7 @@ compat_ssize_t compat_sys_pread64(unsigned int fd, char __user *ubuf, compat_siz
return sys_pread64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo);
}
compat_ssize_t compat_sys_pwrite64(unsigned int fd, char __user *ubuf, compat_size_t count,
compat_ssize_t compat_sys_pwrite64(unsigned int fd, const char __user *ubuf, compat_size_t count,
u32 reg6, u32 poshi, u32 poslo)
{
return sys_pwrite64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo);

10
arch/s390/kernel/compat_linux.c
View File

@ -436,7 +436,7 @@ sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t __user *uinfo)
* sys32_execve() executes a new program after the asm stub has set
* things up for us. This should basically do what I want it to.
*/
asmlinkage long sys32_execve(char __user *name, compat_uptr_t __user *argv,
asmlinkage long sys32_execve(const char __user *name, compat_uptr_t __user *argv,
compat_uptr_t __user *envp)
{
struct pt_regs *regs = task_pt_regs(current);
@ -570,7 +570,7 @@ static int cp_stat64(struct stat64_emu31 __user *ubuf, struct kstat *stat)
return copy_to_user(ubuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;
}
asmlinkage long sys32_stat64(char __user * filename, struct stat64_emu31 __user * statbuf)
asmlinkage long sys32_stat64(const char __user * filename, struct stat64_emu31 __user * statbuf)
{
struct kstat stat;
int ret = vfs_stat(filename, &stat);
@ -579,7 +579,7 @@ asmlinkage long sys32_stat64(char __user * filename, struct stat64_emu31 __user
return ret;
}
asmlinkage long sys32_lstat64(char __user * filename, struct stat64_emu31 __user * statbuf)
asmlinkage long sys32_lstat64(const char __user * filename, struct stat64_emu31 __user * statbuf)
{
struct kstat stat;
int ret = vfs_lstat(filename, &stat);
@ -597,7 +597,7 @@ asmlinkage long sys32_fstat64(unsigned long fd, struct stat64_emu31 __user * sta
return ret;
}
asmlinkage long sys32_fstatat64(unsigned int dfd, char __user *filename,
asmlinkage long sys32_fstatat64(unsigned int dfd, const char __user *filename,
struct stat64_emu31 __user* statbuf, int flag)
{
struct kstat stat;
@ -655,7 +655,7 @@ asmlinkage long sys32_read(unsigned int fd, char __user * buf, size_t count)
return sys_read(fd, buf, count);
}
asmlinkage long sys32_write(unsigned int fd, char __user * buf, size_t count)
asmlinkage long sys32_write(unsigned int fd, const char __user * buf, size_t count)
{
if ((compat_ssize_t) count < 0)
return -EINVAL;

10
arch/s390/kernel/compat_linux.h
View File

@ -193,7 +193,7 @@ long sys32_rt_sigprocmask(int how, compat_sigset_t __user *set,
compat_sigset_t __user *oset, size_t sigsetsize);
long sys32_rt_sigpending(compat_sigset_t __user *set, size_t sigsetsize);
long sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t __user *uinfo);
long sys32_execve(char __user *name, compat_uptr_t __user *argv,
long sys32_execve(const char __user *name, compat_uptr_t __user *argv,
compat_uptr_t __user *envp);
long sys32_init_module(void __user *umod, unsigned long len,
const char __user *uargs);
@ -207,16 +207,16 @@ long sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset,
size_t count);
long sys32_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset,
s32 count);
long sys32_stat64(char __user * filename, struct stat64_emu31 __user * statbuf);
long sys32_lstat64(char __user * filename,
long sys32_stat64(const char __user * filename, struct stat64_emu31 __user * statbuf);
long sys32_lstat64(const char __user * filename,
struct stat64_emu31 __user * statbuf);
long sys32_fstat64(unsigned long fd, struct stat64_emu31 __user * statbuf);
long sys32_fstatat64(unsigned int dfd, char __user *filename,
long sys32_fstatat64(unsigned int dfd, const char __user *filename,
struct stat64_emu31 __user* statbuf, int flag);
unsigned long old32_mmap(struct mmap_arg_struct_emu31 __user *arg);
long sys32_mmap2(struct mmap_arg_struct_emu31 __user *arg);
long sys32_read(unsigned int fd, char __user * buf, size_t count);
long sys32_write(unsigned int fd, char __user * buf, size_t count);
long sys32_write(unsigned int fd, const char __user * buf, size_t count);
long sys32_fadvise64(int fd, loff_t offset, size_t len, int advise);
long sys32_fadvise64_64(struct fadvise64_64_args __user *args);
long sys32_sigaction(int sig, const struct old_sigaction32 __user *act,

2
arch/s390/kernel/entry.h
View File

@ -42,7 +42,7 @@ long sys_clone(unsigned long newsp, unsigned long clone_flags,
int __user *parent_tidptr, int __user *child_tidptr);
long sys_vfork(void);
void execve_tail(void);
long sys_execve(char __user *name, char __user * __user *argv,
long sys_execve(const char __user *name, char __user * __user *argv,
char __user * __user *envp);
long sys_sigsuspend(int history0, int history1, old_sigset_t mask);
long sys_sigaction(int sig, const struct old_sigaction __user *act,

2
arch/s390/kernel/process.c
View File

@ -267,7 +267,7 @@ asmlinkage void execve_tail(void)
/*
* sys_execve() executes a new program.
*/
SYSCALL_DEFINE3(execve, char __user *, name, char __user * __user *, argv,
SYSCALL_DEFINE3(execve, const char __user *, name, char __user * __user *, argv,
char __user * __user *, envp)
{
struct pt_regs *regs = task_pt_regs(current);

2
arch/sh/include/asm/syscalls_32.h
View File

@ -19,7 +19,7 @@ asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
asmlinkage int sys_vfork(unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7,
struct pt_regs __regs);
asmlinkage int sys_execve(char __user *ufilename, char __user * __user *uargv,
asmlinkage int sys_execve(const char __user *ufilename, char __user * __user *uargv,
char __user * __user *uenvp, unsigned long r7,
struct pt_regs __regs);
asmlinkage int sys_sigsuspend(old_sigset_t mask, unsigned long r5,

2
arch/sh/include/asm/syscalls_64.h
View File

@ -21,7 +21,7 @@ asmlinkage int sys_vfork(unsigned long r2, unsigned long r3,
unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7,
struct pt_regs *pregs);
asmlinkage int sys_execve(char *ufilename, char **uargv,
asmlinkage int sys_execve(const char *ufilename, char **uargv,
char **uenvp, unsigned long r5,
unsigned long r6, unsigned long r7,
struct pt_regs *pregs);

2
arch/sh/kernel/process_64.c
View File

@ -483,7 +483,7 @@ asmlinkage int sys_vfork(unsigned long r2, unsigned long r3,
/*
* sys_execve() executes a new program.
*/
asmlinkage int sys_execve(char *ufilename, char **uargv,
asmlinkage int sys_execve(const char *ufilename, char **uargv,
char **uenvp, unsigned long r5,
unsigned long r6, unsigned long r7,
struct pt_regs *pregs)

7
arch/sparc/kernel/sys_sparc32.c
View File

@ -162,7 +162,7 @@ static int cp_compat_stat64(struct kstat *stat,
return err;
}
asmlinkage long compat_sys_stat64(char __user * filename,
asmlinkage long compat_sys_stat64(const char __user * filename,
struct compat_stat64 __user *statbuf)
{
struct kstat stat;
@ -173,7 +173,7 @@ asmlinkage long compat_sys_stat64(char __user * filename,
return error;
}
asmlinkage long compat_sys_lstat64(char __user * filename,
asmlinkage long compat_sys_lstat64(const char __user * filename,
struct compat_stat64 __user *statbuf)
{
struct kstat stat;
@ -195,7 +195,8 @@ asmlinkage long compat_sys_fstat64(unsigned int fd,
return error;
}
asmlinkage long compat_sys_fstatat64(unsigned int dfd, char __user *filename,
asmlinkage long compat_sys_fstatat64(unsigned int dfd,
const char __user *filename,
struct compat_stat64 __user * statbuf, int flag)
{
struct kstat stat;

6
arch/um/kernel/exec.c
View File

@ -44,7 +44,7 @@ void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp)
PT_REGS_SP(regs) = esp;
}
static long execve1(char *file, char __user * __user *argv,
static long execve1(const char *file, char __user * __user *argv,
char __user *__user *env)
{
long error;
@ -61,7 +61,7 @@ static long execve1(char *file, char __user * __user *argv,
return error;
}
long um_execve(char *file, char __user *__user *argv, char __user *__user *env)
long um_execve(const char *file, char __user *__user *argv, char __user *__user *env)
{
long err;
@ -71,7 +71,7 @@ long um_execve(char *file, char __user *__user *argv, char __user *__user *env)
return err;
}
long sys_execve(char __user *file, char __user *__user *argv,
long sys_execve(const char __user *file, char __user *__user *argv,
char __user *__user *env)
{
long error;

2
arch/um/kernel/internal.h
View File

@ -1 +1 @@
extern long um_execve(char *file, char __user *__user *argv, char __user *__user *env);
extern long um_execve(const char *file, char __user *__user *argv, char __user *__user *env);

2
arch/um/kernel/syscall.c
View File

@ -58,7 +58,7 @@ int kernel_execve(const char *filename, char *const argv[], char *const envp[])
fs = get_fs();
set_fs(KERNEL_DS);
ret = um_execve((char *)filename, (char __user *__user *)argv,
ret = um_execve(filename, (char __user *__user *)argv,
(char __user *__user *) envp);
set_fs(fs);

14
arch/x86/ia32/sys_ia32.c
View File

@ -51,7 +51,7 @@
#define AA(__x) ((unsigned long)(__x))
asmlinkage long sys32_truncate64(char __user *filename,
asmlinkage long sys32_truncate64(const char __user *filename,
unsigned long offset_low,
unsigned long offset_high)
{
@ -96,7 +96,7 @@ static int cp_stat64(struct stat64 __user *ubuf, struct kstat *stat)
return 0;
}
asmlinkage long sys32_stat64(char __user *filename,
asmlinkage long sys32_stat64(const char __user *filename,
struct stat64 __user *statbuf)
{
struct kstat stat;
@ -107,7 +107,7 @@ asmlinkage long sys32_stat64(char __user *filename,
return ret;
}
asmlinkage long sys32_lstat64(char __user *filename,
asmlinkage long sys32_lstat64(const char __user *filename,
struct stat64 __user *statbuf)
{
struct kstat stat;
@ -126,7 +126,7 @@ asmlinkage long sys32_fstat64(unsigned int fd, struct stat64 __user *statbuf)
return ret;
}
asmlinkage long sys32_fstatat(unsigned int dfd, char __user *filename,
asmlinkage long sys32_fstatat(unsigned int dfd, const char __user *filename,
struct stat64 __user *statbuf, int flag)
{
struct kstat stat;
@ -408,8 +408,8 @@ asmlinkage long sys32_pread(unsigned int fd, char __user *ubuf, u32 count,
((loff_t)AA(poshi) << 32) | AA(poslo));
}
asmlinkage long sys32_pwrite(unsigned int fd, char __user *ubuf, u32 count,
u32 poslo, u32 poshi)
asmlinkage long sys32_pwrite(unsigned int fd, const char __user *ubuf,
u32 count, u32 poslo, u32 poshi)
{
return sys_pwrite64(fd, ubuf, count,
((loff_t)AA(poshi) << 32) | AA(poslo));
@ -449,7 +449,7 @@ asmlinkage long sys32_sendfile(int out_fd, int in_fd,
return ret;
}
asmlinkage long sys32_execve(char __user *name, compat_uptr_t __user *argv,
asmlinkage long sys32_execve(const char __user *name, compat_uptr_t __user *argv,
compat_uptr_t __user *envp, struct pt_regs *regs)
{
long error;

12
arch/x86/include/asm/sys_ia32.h
View File

@ -18,13 +18,13 @@
#include <asm/ia32.h>
/* ia32/sys_ia32.c */
asmlinkage long sys32_truncate64(char __user *, unsigned long, unsigned long);
asmlinkage long sys32_truncate64(const char __user *, unsigned long, unsigned long);
asmlinkage long sys32_ftruncate64(unsigned int, unsigned long, unsigned long);
asmlinkage long sys32_stat64(char __user *, struct stat64 __user *);
asmlinkage long sys32_lstat64(char __user *, struct stat64 __user *);
asmlinkage long sys32_stat64(const char __user *, struct stat64 __user *);
asmlinkage long sys32_lstat64(const char __user *, struct stat64 __user *);
asmlinkage long sys32_fstat64(unsigned int, struct stat64 __user *);
asmlinkage long sys32_fstatat(unsigned int, char __user *,
asmlinkage long sys32_fstatat(unsigned int, const char __user *,
struct stat64 __user *, int);
struct mmap_arg_struct32;
asmlinkage long sys32_mmap(struct mmap_arg_struct32 __user *);
@ -49,12 +49,12 @@ asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *, compat_size_t);
asmlinkage long sys32_rt_sigqueueinfo(int, int, compat_siginfo_t __user *);
asmlinkage long sys32_pread(unsigned int, char __user *, u32, u32, u32);
asmlinkage long sys32_pwrite(unsigned int, char __user *, u32, u32, u32);
asmlinkage long sys32_pwrite(unsigned int, const char __user *, u32, u32, u32);
asmlinkage long sys32_personality(unsigned long);
asmlinkage long sys32_sendfile(int, int, compat_off_t __user *, s32);
asmlinkage long sys32_execve(char __user *, compat_uptr_t __user *,
asmlinkage long sys32_execve(const char __user *, compat_uptr_t __user *,
compat_uptr_t __user *, struct pt_regs *);
asmlinkage long sys32_clone(unsigned int, unsigned int, struct pt_regs *);

2
arch/x86/include/asm/syscalls.h
View File

@ -23,7 +23,7 @@ long sys_iopl(unsigned int, struct pt_regs *);
/* kernel/process.c */
int sys_fork(struct pt_regs *);
int sys_vfork(struct pt_regs *);
long sys_execve(char __user *, char __user * __user *,
long sys_execve(const char __user *, char __user * __user *,
char __user * __user *, struct pt_regs *);
long sys_clone(unsigned long, unsigned long, void __user *,
void __user *, struct pt_regs *);

4
arch/x86/kernel/entry_64.S
View File

@ -1185,13 +1185,13 @@ END(kernel_thread_helper)
* execve(). This function needs to use IRET, not SYSRET, to set up all state properly.
*
* C extern interface:
* extern long execve(char *name, char **argv, char **envp)
* extern long execve(const char *name, char **argv, char **envp)
*
* asm input arguments:
* rdi: name, rsi: argv, rdx: envp
*
* We want to fallback into:
* extern long sys_execve(char *name, char **argv,char **envp, struct pt_regs *regs)
* extern long sys_execve(const char *name, char **argv,char **envp, struct pt_regs *regs)
*
* do_sys_execve asm fallback arguments:
* rdi: name, rsi: argv, rdx: envp, rcx: fake frame on the stack

2
arch/x86/kernel/process.c
View File

@ -301,7 +301,7 @@ EXPORT_SYMBOL(kernel_thread);
/*
* sys_execve() executes a new program.
*/
long sys_execve(char __user *name, char __user * __user *argv,
long sys_execve(const char __user *name, char __user * __user *argv,
char __user * __user *envp, struct pt_regs *regs)
{
long error;

2
arch/xtensa/kernel/process.c
View File

@ -318,7 +318,7 @@ long xtensa_clone(unsigned long clone_flags, unsigned long newsp,
*/
asmlinkage
long xtensa_execve(char __user *name, char __user * __user *argv,
long xtensa_execve(const char __user *name, char __user * __user *argv,
char __user * __user *envp,
long a3, long a4, long a5,
struct pt_regs *regs)

23
fs/compat.c
View File

@ -77,7 +77,8 @@ int compat_printk(const char *fmt, ...)
* Not all architectures have sys_utime, so implement this in terms
* of sys_utimes.
*/
asmlinkage long compat_sys_utime(char __user *filename, struct compat_utimbuf __user *t)
asmlinkage long compat_sys_utime(const char __user *filename,
struct compat_utimbuf __user *t)
{
struct timespec tv[2];
@ -91,7 +92,7 @@ asmlinkage long compat_sys_utime(char __user *filename, struct compat_utimbuf __
return do_utimes(AT_FDCWD, filename, t ? tv : NULL, 0);
}
asmlinkage long compat_sys_utimensat(unsigned int dfd, char __user *filename, struct compat_timespec __user *t, int flags)
asmlinkage long compat_sys_utimensat(unsigned int dfd, const char __user *filename, struct compat_timespec __user *t, int flags)
{
struct timespec tv[2];
@ -106,7 +107,7 @@ asmlinkage long compat_sys_utimensat(unsigned int dfd, char __user *filename, st
return do_utimes(dfd, filename, t ? tv : NULL, flags);
}
asmlinkage long compat_sys_futimesat(unsigned int dfd, char __user *filename, struct compat_timeval __user *t)
asmlinkage long compat_sys_futimesat(unsigned int dfd, const char __user *filename, struct compat_timeval __user *t)
{
struct timespec tv[2];
@ -125,7 +126,7 @@ asmlinkage long compat_sys_futimesat(unsigned int dfd, char __user *filename, st
return do_utimes(dfd, filename, t ? tv : NULL, 0);
}
asmlinkage long compat_sys_utimes(char __user *filename, struct compat_timeval __user *t)
asmlinkage long compat_sys_utimes(const char __user *filename, struct compat_timeval __user *t)
{
return compat_sys_futimesat(AT_FDCWD, filename, t);
}
@ -169,7 +170,7 @@ static int cp_compat_stat(struct kstat *stat, struct compat_stat __user *ubuf)
return err;
}
asmlinkage long compat_sys_newstat(char __user * filename,
asmlinkage long compat_sys_newstat(const char __user * filename,
struct compat_stat __user *statbuf)
{
struct kstat stat;
@ -181,7 +182,7 @@ asmlinkage long compat_sys_newstat(char __user * filename,
return cp_compat_stat(&stat, statbuf);
}
asmlinkage long compat_sys_newlstat(char __user * filename,
asmlinkage long compat_sys_newlstat(const char __user * filename,
struct compat_stat __user *statbuf)
{
struct kstat stat;
@ -194,7 +195,8 @@ asmlinkage long compat_sys_newlstat(char __user * filename,
}
#ifndef __ARCH_WANT_STAT64
asmlinkage long compat_sys_newfstatat(unsigned int dfd, char __user *filename,
asmlinkage long compat_sys_newfstatat(unsigned int dfd,
const char __user *filename,
struct compat_stat __user *statbuf, int flag)
{
struct kstat stat;
@ -837,9 +839,10 @@ static int do_nfs4_super_data_conv(void *raw_data)
#define NCPFS_NAME "ncpfs"
#define NFS4_NAME "nfs4"
asmlinkage long compat_sys_mount(char __user * dev_name, char __user * dir_name,
char __user * type, unsigned long flags,
void __user * data)
asmlinkage long compat_sys_mount(const char __user * dev_name,
const char __user * dir_name,
const char __user * type, unsigned long flags,
const void __user * data)
{
char *kernel_type;
unsigned long data_page;

29
fs/stat.c
View File

@ -68,7 +68,8 @@ int vfs_fstat(unsigned int fd, struct kstat *stat)
}
EXPORT_SYMBOL(vfs_fstat);
int vfs_fstatat(int dfd, char __user *filename, struct kstat *stat, int flag)
int vfs_fstatat(int dfd, const char __user *filename, struct kstat *stat,
int flag)
{
struct path path;
int error = -EINVAL;
@ -91,13 +92,13 @@ int vfs_fstatat(int dfd, char __user *filename, struct kstat *stat, int flag)
}
EXPORT_SYMBOL(vfs_fstatat);
int vfs_stat(char __user *name, struct kstat *stat)
int vfs_stat(const char __user *name, struct kstat *stat)
{
return vfs_fstatat(AT_FDCWD, name, stat, 0);
}
EXPORT_SYMBOL(vfs_stat);
int vfs_lstat(char __user *name, struct kstat *stat)
int vfs_lstat(const char __user *name, struct kstat *stat)
{
return vfs_fstatat(AT_FDCWD, name, stat, AT_SYMLINK_NOFOLLOW);
}
@ -147,7 +148,8 @@ static int cp_old_stat(struct kstat *stat, struct __old_kernel_stat __user * sta
return copy_to_user(statbuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;
}
SYSCALL_DEFINE2(stat, char __user *, filename, struct __old_kernel_stat __user *, statbuf)
SYSCALL_DEFINE2(stat, const char __user *, filename,
struct __old_kernel_stat __user *, statbuf)
{
struct kstat stat;
int error;
@ -159,7 +161,8 @@ SYSCALL_DEFINE2(stat, char __user *, filename, struct __old_kernel_stat __user *
return cp_old_stat(&stat, statbuf);
}
SYSCALL_DEFINE2(lstat, char __user *, filename, struct __old_kernel_stat __user *, statbuf)
SYSCALL_DEFINE2(lstat, const char __user *, filename,
struct __old_kernel_stat __user *, statbuf)
{
struct kstat stat;
int error;
@ -234,7 +237,8 @@ static int cp_new_stat(struct kstat *stat, struct stat __user *statbuf)
return copy_to_user(statbuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;
}
SYSCALL_DEFINE2(newstat, char __user *, filename, struct stat __user *, statbuf)
SYSCALL_DEFINE2(newstat, const char __user *, filename,
struct stat __user *, statbuf)
{
struct kstat stat;
int error = vfs_stat(filename, &stat);
@ -244,7 +248,8 @@ SYSCALL_DEFINE2(newstat, char __user *, filename, struct stat __user *, statbuf)
return cp_new_stat(&stat, statbuf);
}
SYSCALL_DEFINE2(newlstat, char __user *, filename, struct stat __user *, statbuf)
SYSCALL_DEFINE2(newlstat, const char __user *, filename,
struct stat __user *, statbuf)
{
struct kstat stat;
int error;
@ -257,7 +262,7 @@ SYSCALL_DEFINE2(newlstat, char __user *, filename, struct stat __user *, statbuf
}
#if !defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_SYS_NEWFSTATAT)
SYSCALL_DEFINE4(newfstatat, int, dfd, char __user *, filename,
SYSCALL_DEFINE4(newfstatat, int, dfd, const char __user *, filename,
struct stat __user *, statbuf, int, flag)
{
struct kstat stat;
@ -355,7 +360,8 @@ static long cp_new_stat64(struct kstat *stat, struct stat64 __user *statbuf)
return copy_to_user(statbuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;
}
SYSCALL_DEFINE2(stat64, char __user *, filename, struct stat64 __user *, statbuf)
SYSCALL_DEFINE2(stat64, const char __user *, filename,
struct stat64 __user *, statbuf)
{
struct kstat stat;
int error = vfs_stat(filename, &stat);
@ -366,7 +372,8 @@ SYSCALL_DEFINE2(stat64, char __user *, filename, struct stat64 __user *, statbuf
return error;
}
SYSCALL_DEFINE2(lstat64, char __user *, filename, struct stat64 __user *, statbuf)
SYSCALL_DEFINE2(lstat64, const char __user *, filename,
struct stat64 __user *, statbuf)
{
struct kstat stat;
int error = vfs_lstat(filename, &stat);
@ -388,7 +395,7 @@ SYSCALL_DEFINE2(fstat64, unsigned long, fd, struct stat64 __user *, statbuf)
return error;
}
SYSCALL_DEFINE4(fstatat64, int, dfd, char __user *, filename,
SYSCALL_DEFINE4(fstatat64, int, dfd, const char __user *, filename,
struct stat64 __user *, statbuf, int, flag)
{
struct kstat stat;

7
fs/utimes.c
View File

@ -126,7 +126,8 @@ static int utimes_common(struct path *path, struct timespec *times)
* must be owner or have write permission.
* Else, update from *times, must be owner or super user.
*/
long do_utimes(int dfd, char __user *filename, struct timespec *times, int flags)
long do_utimes(int dfd, const char __user *filename, struct timespec *times,
int flags)
{
int error = -EINVAL;
@ -170,7 +171,7 @@ long do_utimes(int dfd, char __user *filename, struct timespec *times, int flags
return error;
}
SYSCALL_DEFINE4(utimensat, int, dfd, char __user *, filename,
SYSCALL_DEFINE4(utimensat, int, dfd, const char __user *, filename,
struct timespec __user *, utimes, int, flags)
{
struct timespec tstimes[2];
@ -188,7 +189,7 @@ SYSCALL_DEFINE4(utimensat, int, dfd, char __user *, filename,
return do_utimes(dfd, filename, utimes ? tstimes : NULL, flags);
}
SYSCALL_DEFINE3(futimesat, int, dfd, char __user *, filename,
SYSCALL_DEFINE3(futimesat, int, dfd, const char __user *, filename,
struct timeval __user *, utimes)
{
struct timeval times[2];

6
include/linux/compat.h
View File

@ -331,7 +331,7 @@ asmlinkage long compat_sys_epoll_pwait(int epfd,
const compat_sigset_t __user *sigmask,
compat_size_t sigsetsize);
asmlinkage long compat_sys_utimensat(unsigned int dfd, char __user *filename,
asmlinkage long compat_sys_utimensat(unsigned int dfd, const char __user *filename,
struct compat_timespec __user *t, int flags);
asmlinkage long compat_sys_signalfd(int ufd,
@ -348,9 +348,9 @@ asmlinkage long compat_sys_move_pages(pid_t pid, unsigned long nr_page,
const int __user *nodes,
int __user *status,
int flags);
asmlinkage long compat_sys_futimesat(unsigned int dfd, char __user *filename,
asmlinkage long compat_sys_futimesat(unsigned int dfd, const char __user *filename,
struct compat_timeval __user *t);
asmlinkage long compat_sys_newfstatat(unsigned int dfd, char __user * filename,
asmlinkage long compat_sys_newfstatat(unsigned int dfd, const char __user * filename,
struct compat_stat __user *statbuf,
int flag);
asmlinkage long compat_sys_openat(unsigned int dfd, const char __user *filename,

6
include/linux/fs.h
View File

@ -2320,10 +2320,10 @@ void inode_set_bytes(struct inode *inode, loff_t bytes);
extern int vfs_readdir(struct file *, filldir_t, void *);
extern int vfs_stat(char __user *, struct kstat *);
extern int vfs_lstat(char __user *, struct kstat *);
extern int vfs_stat(const char __user *, struct kstat *);
extern int vfs_lstat(const char __user *, struct kstat *);
extern int vfs_fstat(unsigned int, struct kstat *);
extern int vfs_fstatat(int , char __user *, struct kstat *, int);
extern int vfs_fstatat(int , const char __user *, struct kstat *, int);
extern int do_vfs_ioctl(struct file *filp, unsigned int fd, unsigned int cmd,
unsigned long arg);

20
include/linux/syscalls.h
View File

@ -394,7 +394,7 @@ asmlinkage long sys_umount(char __user *name, int flags);
asmlinkage long sys_oldumount(char __user *name);
asmlinkage long sys_truncate(const char __user *path, long length);
asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
asmlinkage long sys_stat(char __user *filename,
asmlinkage long sys_stat(const char __user *filename,
struct __old_kernel_stat __user *statbuf);
asmlinkage long sys_statfs(const char __user * path,
struct statfs __user *buf);
@ -403,21 +403,21 @@ asmlinkage long sys_statfs64(const char __user *path, size_t sz,
asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
struct statfs64 __user *buf);
asmlinkage long sys_lstat(char __user *filename,
asmlinkage long sys_lstat(const char __user *filename,
struct __old_kernel_stat __user *statbuf);
asmlinkage long sys_fstat(unsigned int fd,
struct __old_kernel_stat __user *statbuf);
asmlinkage long sys_newstat(char __user *filename,
asmlinkage long sys_newstat(const char __user *filename,
struct stat __user *statbuf);
asmlinkage long sys_newlstat(char __user *filename,
asmlinkage long sys_newlstat(const char __user *filename,
struct stat __user *statbuf);
asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
#if BITS_PER_LONG == 32
asmlinkage long sys_stat64(char __user *filename,
asmlinkage long sys_stat64(const char __user *filename,
struct stat64 __user *statbuf);
asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
asmlinkage long sys_lstat64(char __user *filename,
asmlinkage long sys_lstat64(const char __user *filename,
struct stat64 __user *statbuf);
asmlinkage long sys_truncate64(const char __user *path, loff_t length);
asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
@ -760,7 +760,7 @@ asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
int newdfd, const char __user *newname, int flags);
asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
int newdfd, const char __user * newname);
asmlinkage long sys_futimesat(int dfd, char __user *filename,
asmlinkage long sys_futimesat(int dfd, const char __user *filename,
struct timeval __user *utimes);
asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
asmlinkage long sys_fchmodat(int dfd, const char __user * filename,
@ -769,13 +769,13 @@ asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
gid_t group, int flag);
asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
int mode);
asmlinkage long sys_newfstatat(int dfd, char __user *filename,
asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
struct stat __user *statbuf, int flag);
asmlinkage long sys_fstatat64(int dfd, char __user *filename,
asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
struct stat64 __user *statbuf, int flag);
asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
int bufsiz);
asmlinkage long sys_utimensat(int dfd, char __user *filename,
asmlinkage long sys_utimensat(int dfd, const char __user *filename,
struct timespec __user *utimes, int flags);
asmlinkage long sys_unshare(unsigned long unshare_flags);

2
include/linux/time.h
View File

@ -150,7 +150,7 @@ extern void do_gettimeofday(struct timeval *tv);
extern int do_settimeofday(struct timespec *tv);
extern int do_sys_settimeofday(struct timespec *tv, struct timezone *tz);
#define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts)
extern long do_utimes(int dfd, char __user *filename, struct timespec *times, int flags);
extern long do_utimes(int dfd, const char __user *filename, struct timespec *times, int flags);
struct itimerval;
extern int do_setitimer(int which, struct itimerval *value,
struct itimerval *ovalue);