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Commit 7a8bb98c authored by Mans Rullgard's avatar Mans Rullgard Committed by Matt Turner
Browse files

alpha: implement various OSF/1 stat syscalls 



This implements OSF/1 versions of stat, lstat, fstat, statfs64,
and fstatfs64 syscalls.

Signed-off-by: default avatarMans Rullgard <mans@mansr.com>
Signed-off-by: default avatarMatt Turner <mattst88@gmail.com>
parent 50744dee

arch/alpha/include/asm/unistd.h

+6 −0
Original line number Diff line number Diff line
@@ -203,6 +203,12 @@ 
#define __NR_osf_security	222	/* not implemented */

#define __NR_osf_kloadcall	223	/* not implemented */



#define __NR_osf_stat		224

#define __NR_osf_lstat		225

#define __NR_osf_fstat		226

#define __NR_osf_statfs64	227

#define __NR_osf_fstatfs64	228



#define __NR_getpgid		233

#define __NR_getsid		234

#define __NR_sigaltstack	235

arch/alpha/kernel/osf_sys.c

+163 −0
Original line number Diff line number Diff line
@@ -191,6 +191,39 @@ SYSCALL_DEFINE6(osf_mmap, unsigned long, addr, unsigned long, len, 
	return ret;

}



struct osf_stat {

	int		st_dev;

	int		st_pad1;

	unsigned	st_mode;

	unsigned short	st_nlink;

	short		st_nlink_reserved;

	unsigned	st_uid;

	unsigned	st_gid;

	int		st_rdev;

	int		st_ldev;

	long		st_size;

	int		st_pad2;

	int		st_uatime;

	int		st_pad3;

	int		st_umtime;

	int		st_pad4;

	int		st_uctime;

	int		st_pad5;

	int		st_pad6;

	unsigned	st_flags;

	unsigned	st_gen;

	long		st_spare[4];

	unsigned	st_ino;

	int		st_ino_reserved;

	int		st_atime;

	int		st_atime_reserved;

	int		st_mtime;

	int		st_mtime_reserved;

	int		st_ctime;

	int		st_ctime_reserved;

	long		st_blksize;

	long		st_blocks;

};



/*

 * The OSF/1 statfs structure is much larger, but this should
@@ -209,6 +242,60 @@ struct osf_statfs { 
	__kernel_fsid_t f_fsid;

};



struct osf_statfs64 {

	short f_type;

	short f_flags;

	int f_pad1;

	int f_pad2;

	int f_pad3;

	int f_pad4;

	int f_pad5;

	int f_pad6;

	int f_pad7;

	__kernel_fsid_t f_fsid;

	u_short f_namemax;

	short f_reserved1;

	int f_spare[8];

	char f_pad8[90];

	char f_pad9[90];

	long mount_info[10];

	u_long f_flags2;

	long f_spare2[14];

	long f_fsize;

	long f_bsize;

	long f_blocks;

	long f_bfree;

	long f_bavail;

	long f_files;

	long f_ffree;

};



static int

linux_to_osf_stat(struct kstat *lstat, struct osf_stat __user *osf_stat)

{

	struct osf_stat tmp = { 0 };



	tmp.st_dev	= lstat->dev;

	tmp.st_mode	= lstat->mode;

	tmp.st_nlink	= lstat->nlink;

	tmp.st_uid	= lstat->uid;

	tmp.st_gid	= lstat->gid;

	tmp.st_rdev	= lstat->rdev;

	tmp.st_ldev	= lstat->rdev;

	tmp.st_size	= lstat->size;

	tmp.st_uatime	= lstat->atime.tv_nsec / 1000;

	tmp.st_umtime	= lstat->mtime.tv_nsec / 1000;

	tmp.st_uctime	= lstat->ctime.tv_nsec / 1000;

	tmp.st_ino	= lstat->ino;

	tmp.st_atime	= lstat->atime.tv_sec;

	tmp.st_mtime	= lstat->mtime.tv_sec;

	tmp.st_ctime	= lstat->ctime.tv_sec;

	tmp.st_blksize	= lstat->blksize;

	tmp.st_blocks	= lstat->blocks;



	return copy_to_user(osf_stat, &tmp, sizeof(tmp)) ? -EFAULT : 0;

}



static int

linux_to_osf_statfs(struct kstatfs *linux_stat, struct osf_statfs __user *osf_stat,

		    unsigned long bufsiz)
@@ -230,6 +317,26 @@ linux_to_osf_statfs(struct kstatfs *linux_stat, struct osf_statfs __user *osf_st 
	return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0;

}



static int

linux_to_osf_statfs64(struct kstatfs *linux_stat, struct osf_statfs64 __user *osf_stat,

		      unsigned long bufsiz)

{

	struct osf_statfs64 tmp_stat = { 0 };



	tmp_stat.f_type = linux_stat->f_type;

	tmp_stat.f_fsize = linux_stat->f_frsize;

	tmp_stat.f_bsize = linux_stat->f_bsize;

	tmp_stat.f_blocks = linux_stat->f_blocks;

	tmp_stat.f_bfree = linux_stat->f_bfree;

	tmp_stat.f_bavail = linux_stat->f_bavail;

	tmp_stat.f_files = linux_stat->f_files;

	tmp_stat.f_ffree = linux_stat->f_ffree;

	tmp_stat.f_fsid = linux_stat->f_fsid;

	if (bufsiz > sizeof(tmp_stat))

		bufsiz = sizeof(tmp_stat);

	return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0;

}



SYSCALL_DEFINE3(osf_statfs, const char __user *, pathname,

		struct osf_statfs __user *, buffer, unsigned long, bufsiz)

{
@@ -240,6 +347,42 @@ SYSCALL_DEFINE3(osf_statfs, const char __user *, pathname, 
	return error;	

}



SYSCALL_DEFINE2(osf_stat, char __user *, name, struct osf_stat __user *, buf)

{

	struct kstat stat;

	int error;



	error = vfs_stat(name, &stat);

	if (error)

		return error;



	return linux_to_osf_stat(&stat, buf);

}



SYSCALL_DEFINE2(osf_lstat, char __user *, name, struct osf_stat __user *, buf)

{

	struct kstat stat;

	int error;



	error = vfs_lstat(name, &stat);

	if (error)

		return error;



	return linux_to_osf_stat(&stat, buf);

}



SYSCALL_DEFINE2(osf_fstat, int, fd, struct osf_stat __user *, buf)

{

	struct kstat stat;

	int error;



	error = vfs_fstat(fd, &stat);

	if (error)

		return error;



	return linux_to_osf_stat(&stat, buf);

}



SYSCALL_DEFINE3(osf_fstatfs, unsigned long, fd,

		struct osf_statfs __user *, buffer, unsigned long, bufsiz)

{
@@ -250,6 +393,26 @@ SYSCALL_DEFINE3(osf_fstatfs, unsigned long, fd, 
	return error;

}



SYSCALL_DEFINE3(osf_statfs64, char __user *, pathname,

		struct osf_statfs64 __user *, buffer, unsigned long, bufsiz)

{

	struct kstatfs linux_stat;

	int error = user_statfs(pathname, &linux_stat);

	if (!error)

		error = linux_to_osf_statfs64(&linux_stat, buffer, bufsiz);

	return error;

}



SYSCALL_DEFINE3(osf_fstatfs64, unsigned long, fd,

		struct osf_statfs64 __user *, buffer, unsigned long, bufsiz)

{

	struct kstatfs linux_stat;

	int error = fd_statfs(fd, &linux_stat);

	if (!error)

		error = linux_to_osf_statfs64(&linux_stat, buffer, bufsiz);

	return error;

}



/*

 * Uhh.. OSF/1 mount parameters aren't exactly obvious..

 *

arch/alpha/kernel/systbls.S

+5 −5
Original line number Diff line number Diff line
@@ -241,11 +241,11 @@ sys_call_table: 
	.quad alpha_ni_syscall

	.quad alpha_ni_syscall

	.quad alpha_ni_syscall

	.quad alpha_ni_syscall

	.quad alpha_ni_syscall			/* 225 */

	.quad alpha_ni_syscall

	.quad alpha_ni_syscall

	.quad alpha_ni_syscall

	.quad sys_osf_stat

	.quad sys_osf_lstat			/* 225 */

	.quad sys_osf_fstat

	.quad sys_osf_statfs64

	.quad sys_osf_fstatfs64

	.quad alpha_ni_syscall

	.quad alpha_ni_syscall			/* 230 */

	.quad alpha_ni_syscall