2 * Implements HPUX syscalls.
4 * Copyright (C) 1999 Matthew Wilcox <willy with parisc-linux.org>
5 * Copyright (C) 2000 Philipp Rumpf
6 * Copyright (C) 2000 John Marvin <jsm with parisc-linux.org>
7 * Copyright (C) 2000 Michael Ang <mang with subcarrier.org>
8 * Copyright (C) 2001 Nathan Neulinger <nneul at umr.edu>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 #include <linux/capability.h>
26 #include <linux/file.h>
28 #include <linux/namei.h>
29 #include <linux/sched.h>
30 #include <linux/slab.h>
31 #include <linux/smp_lock.h>
32 #include <linux/syscalls.h>
33 #include <linux/utsname.h>
34 #include <linux/vfs.h>
35 #include <linux/vmalloc.h>
37 #include <asm/errno.h>
38 #include <asm/pgalloc.h>
39 #include <asm/uaccess.h>
41 unsigned long hpux_brk(unsigned long addr
)
43 /* Sigh. Looks like HP/UX libc relies on kernel bugs. */
44 return sys_brk(addr
+ PAGE_SIZE
);
52 /* Random other syscalls */
54 int hpux_nice(int priority_change
)
64 int hpux_wait(int __user
*stat_loc
)
66 return sys_waitpid(-1, stat_loc
, 0);
69 int hpux_setpgrp(void)
71 return sys_setpgid(0,0);
74 int hpux_setpgrp3(void)
76 return hpux_setpgrp();
79 #define _SC_CPU_VERSION 10001
80 #define _SC_OPEN_MAX 4
81 #define CPU_PA_RISC1_1 0x210
83 int hpux_sysconf(int which
)
87 return CPU_PA_RISC1_1
;
95 /*****************************************************************************/
100 struct hpux_utsname
{
101 char sysname
[HPUX_UTSLEN
];
102 char nodename
[HPUX_UTSLEN
];
103 char release
[HPUX_UTSLEN
];
104 char version
[HPUX_UTSLEN
];
105 char machine
[HPUX_UTSLEN
];
106 char idnumber
[HPUX_SNLEN
];
110 int32_t f_tfree
; /* total free (daddr_t) */
111 u_int32_t f_tinode
; /* total inodes free (ino_t) */
112 char f_fname
[6]; /* filsys name */
113 char f_fpack
[6]; /* filsys pack name */
114 u_int32_t f_blksize
; /* filsys block size (int) */
118 * HPUX's utssys() call. It's a collection of miscellaneous functions,
119 * alas, so there's no nice way of splitting them up.
122 /* This function is called from hpux_utssys(); HP-UX implements
123 * ustat() as an option to utssys().
125 * Now, struct ustat on HP-UX is exactly the same as on Linux, except
126 * that it contains one addition field on the end, int32_t f_blksize.
127 * So, we could have written this function to just call the Linux
128 * sys_ustat(), (defined in linux/fs/super.c), and then just
129 * added this additional field to the user's structure. But I figure
130 * if we're gonna be digging through filesystem structures to get
131 * this, we might as well just do the whole enchilada all in one go.
133 * So, most of this function is almost identical to sys_ustat().
134 * I have placed comments at the few lines changed or added, to
135 * aid in porting forward if and when sys_ustat() is changed from
136 * its form in kernel 2.2.5.
138 static int hpux_ustat(dev_t dev
, struct hpux_ustat __user
*ubuf
)
140 struct super_block
*s
;
141 struct hpux_ustat tmp
; /* Changed to hpux_ustat */
145 s
= user_get_super(dev
);
148 err
= vfs_statfs(s
->s_root
, &sbuf
);
153 memset(&tmp
,0,sizeof(tmp
));
155 tmp
.f_tfree
= (int32_t)sbuf
.f_bfree
;
156 tmp
.f_tinode
= (u_int32_t
)sbuf
.f_ffree
;
157 tmp
.f_blksize
= (u_int32_t
)sbuf
.f_bsize
; /* Added this line */
159 err
= copy_to_user(ubuf
, &tmp
, sizeof(tmp
)) ? -EFAULT
: 0;
165 * Wrapper for hpux statfs call. At the moment, just calls the linux native one
166 * and ignores the extra fields at the end of the hpux statfs struct.
170 typedef int32_t hpux_fsid_t
[2]; /* file system ID type */
171 typedef uint16_t hpux_site_t
;
174 int32_t f_type
; /* type of info, zero for now */
175 int32_t f_bsize
; /* fundamental file system block size */
176 int32_t f_blocks
; /* total blocks in file system */
177 int32_t f_bfree
; /* free block in fs */
178 int32_t f_bavail
; /* free blocks avail to non-superuser */
179 int32_t f_files
; /* total file nodes in file system */
180 int32_t f_ffree
; /* free file nodes in fs */
181 hpux_fsid_t f_fsid
; /* file system ID */
182 int32_t f_magic
; /* file system magic number */
183 int32_t f_featurebits
; /* file system features */
184 int32_t f_spare
[4]; /* spare for later */
185 hpux_site_t f_cnode
; /* cluster node where mounted */
189 static int vfs_statfs_hpux(struct dentry
*dentry
, struct hpux_statfs
*buf
)
194 retval
= vfs_statfs(dentry
, &st
);
198 memset(buf
, 0, sizeof(*buf
));
199 buf
->f_type
= st
.f_type
;
200 buf
->f_bsize
= st
.f_bsize
;
201 buf
->f_blocks
= st
.f_blocks
;
202 buf
->f_bfree
= st
.f_bfree
;
203 buf
->f_bavail
= st
.f_bavail
;
204 buf
->f_files
= st
.f_files
;
205 buf
->f_ffree
= st
.f_ffree
;
206 buf
->f_fsid
[0] = st
.f_fsid
.val
[0];
207 buf
->f_fsid
[1] = st
.f_fsid
.val
[1];
213 asmlinkage
long hpux_statfs(const char __user
*path
,
214 struct hpux_statfs __user
*buf
)
219 error
= user_path_walk(path
, &nd
);
221 struct hpux_statfs tmp
;
222 error
= vfs_statfs_hpux(nd
.path
.dentry
, &tmp
);
223 if (!error
&& copy_to_user(buf
, &tmp
, sizeof(tmp
)))
230 asmlinkage
long hpux_fstatfs(unsigned int fd
, struct hpux_statfs __user
* buf
)
233 struct hpux_statfs tmp
;
240 error
= vfs_statfs_hpux(file
->f_path
.dentry
, &tmp
);
241 if (!error
&& copy_to_user(buf
, &tmp
, sizeof(tmp
)))
249 /* This function is called from hpux_utssys(); HP-UX implements
250 * uname() as an option to utssys().
252 * The form of this function is pretty much copied from sys_olduname(),
253 * defined in linux/arch/i386/kernel/sys_i386.c.
255 /* TODO: Are these put_user calls OK? Should they pass an int?
256 * (I copied it from sys_i386.c like this.)
258 static int hpux_uname(struct hpux_utsname __user
*name
)
264 if (!access_ok(VERIFY_WRITE
,name
,sizeof(struct hpux_utsname
)))
269 error
= __copy_to_user(&name
->sysname
, &utsname()->sysname
,
271 error
|= __put_user(0, name
->sysname
+ HPUX_UTSLEN
- 1);
272 error
|= __copy_to_user(&name
->nodename
, &utsname()->nodename
,
274 error
|= __put_user(0, name
->nodename
+ HPUX_UTSLEN
- 1);
275 error
|= __copy_to_user(&name
->release
, &utsname()->release
,
277 error
|= __put_user(0, name
->release
+ HPUX_UTSLEN
- 1);
278 error
|= __copy_to_user(&name
->version
, &utsname()->version
,
280 error
|= __put_user(0, name
->version
+ HPUX_UTSLEN
- 1);
281 error
|= __copy_to_user(&name
->machine
, &utsname()->machine
,
283 error
|= __put_user(0, name
->machine
+ HPUX_UTSLEN
- 1);
287 /* HP-UX utsname has no domainname field. */
289 /* TODO: Implement idnumber!!! */
291 error
|= __put_user(0,name
->idnumber
);
292 error
|= __put_user(0,name
->idnumber
+HPUX_SNLEN
-1);
295 error
= error
? -EFAULT
: 0;
300 /* Note: HP-UX just uses the old suser() function to check perms
301 * in this system call. We'll use capable(CAP_SYS_ADMIN).
303 int hpux_utssys(char __user
*ubuf
, int n
, int type
)
310 return hpux_uname((struct hpux_utsname __user
*)ubuf
);
313 /* Obsolete (used to be umask().) */
318 return hpux_ustat(new_decode_dev(n
),
319 (struct hpux_ustat __user
*)ubuf
);
324 * On linux (unlike HP-UX), utsname.nodename
325 * is the same as the hostname.
327 * sys_sethostname() is defined in linux/kernel/sys.c.
329 if (!capable(CAP_SYS_ADMIN
))
331 /* Unlike Linux, HP-UX returns an error if n==0: */
334 /* Unlike Linux, HP-UX truncates it if n is too big: */
335 len
= (n
<= __NEW_UTS_LEN
) ? n
: __NEW_UTS_LEN
;
336 return sys_sethostname(ubuf
, len
);
341 * sys_sethostname() is defined in linux/kernel/sys.c.
343 if (!capable(CAP_SYS_ADMIN
))
345 /* Unlike Linux, HP-UX returns an error if n==0: */
348 /* Unlike Linux, HP-UX truncates it if n is too big: */
349 len
= (n
<= __NEW_UTS_LEN
) ? n
: __NEW_UTS_LEN
;
350 return sys_sethostname(ubuf
, len
);
355 * sys_gethostname() is defined in linux/kernel/sys.c.
357 /* Unlike Linux, HP-UX returns an error if n==0: */
360 return sys_gethostname(ubuf
, n
);
363 /* Supposedly called from setuname() in libc.
364 * TODO: When and why is this called?
365 * Is it ever even called?
367 * This code should look a lot like sys_sethostname(),
368 * defined in linux/kernel/sys.c. If that gets updated,
369 * update this code similarly.
371 if (!capable(CAP_SYS_ADMIN
))
373 /* Unlike Linux, HP-UX returns an error if n==0: */
376 /* Unlike Linux, HP-UX truncates it if n is too big: */
377 len
= (n
<= __NEW_UTS_LEN
) ? n
: __NEW_UTS_LEN
;
379 /* TODO: print a warning about using this? */
380 down_write(&uts_sem
);
382 if (!copy_from_user(utsname()->sysname
, ubuf
, len
)) {
383 utsname()->sysname
[len
] = 0;
390 /* Sets utsname.release, if you're allowed.
391 * Undocumented. Used by swinstall to change the
392 * OS version, during OS updates. Yuck!!!
394 * This code should look a lot like sys_sethostname()
395 * in linux/kernel/sys.c. If that gets updated, update
396 * this code similarly.
398 if (!capable(CAP_SYS_ADMIN
))
400 /* Unlike Linux, HP-UX returns an error if n==0: */
403 /* Unlike Linux, HP-UX truncates it if n is too big: */
404 len
= (n
<= __NEW_UTS_LEN
) ? n
: __NEW_UTS_LEN
;
406 /* TODO: print a warning about this? */
407 down_write(&uts_sem
);
409 if (!copy_from_user(utsname()->release
, ubuf
, len
)) {
410 utsname()->release
[len
] = 0;
417 /* This system call returns -EFAULT if given an unknown type.
418 * Why not -EINVAL? I don't know, it's just not what they did.
424 int hpux_getdomainname(char __user
*name
, int len
)
431 nlen
= strlen(utsname()->domainname
) + 1;
435 if(len
> __NEW_UTS_LEN
)
437 if(copy_to_user(name
, utsname()->domainname
, len
))
446 int hpux_pipe(int *kstack_fildes
)
451 error
= do_pipe(kstack_fildes
);
456 /* lies - says it works, but it really didn't lock anything */
457 int hpux_lockf(int fildes
, int function
, off_t size
)
462 int hpux_sysfs(int opcode
, unsigned long arg1
, unsigned long arg2
)
468 /*Unimplemented HP-UX syscall emulation. Syscall #334 (sysfs)
469 Args: 1 80057bf4 0 400179f0 0 0 0 */
470 printk(KERN_DEBUG
"in hpux_sysfs\n");
471 printk(KERN_DEBUG
"hpux_sysfs called with opcode = %d\n", opcode
);
472 printk(KERN_DEBUG
"hpux_sysfs called with arg1='%lx'\n", arg1
);
474 if ( opcode
== 1 ) { /* GETFSIND */
475 char __user
*user_fsname
= (char __user
*)arg1
;
476 len
= strlen_user(user_fsname
);
477 printk(KERN_DEBUG
"len of arg1 = %d\n", len
);
480 fsname
= kmalloc(len
, GFP_KERNEL
);
482 printk(KERN_DEBUG
"failed to kmalloc fsname\n");
486 if (copy_from_user(fsname
, user_fsname
, len
)) {
487 printk(KERN_DEBUG
"failed to copy_from_user fsname\n");
492 /* String could be altered by userspace after strlen_user() */
495 printk(KERN_DEBUG
"that is '%s' as (char *)\n", fsname
);
496 if ( !strcmp(fsname
, "hfs") ) {
504 printk(KERN_DEBUG
"returning fstype=%d\n", fstype
);
505 return fstype
; /* something other than default */
513 /* Table of syscall names and handle for unimplemented routines */
514 static const char * const syscall_names
[] = {
595 "setgroups", /* 80 */
615 "getpriority", /* 100 */
625 "sigsetmask", /* 110 */
645 "ftruncate", /* 130 */
660 "setrlimit", /* 145 */
690 "osetcontext", /* 175 */
695 "cnodeid/mysite", /* 180 */
700 "sigprocmask", /* 185 */
710 "getdirentries", /* 195 */
740 "sigsetstatemask", /* 225 */
745 "pathconf", /* 230 */
755 "getaudid", /* 240 */
760 "setevent", /* 245 */
795 "getsockopt", /* 280 */
810 "proc_recv", /* 295 */
815 "ipcnamerase", /* 300 */
825 "ipcshutdown", /* 310 */
854 "sched_setscheduler",
855 "sched_getscheduler", /* 340 */
857 "sched_get_priority_max",
858 "sched_get_priority_min",
859 "sched_rr_get_interval",
860 "clock_settime", /* 345 */
865 "timer_settime", /* 350 */
875 "ftruncate64", /* 360 */
885 "truncate64", /* 370 */
895 "setcontext", /* 380 */
900 "sendmsg2", /* 385 */
905 "lwp_terminate", /* 390 */
910 "lwp_abort_syscall", /* 395 */
915 "ksleep_abort", /* 400 */
925 "lwp_mutex_lock_sys", /* 410 */
929 "lwp_cond_broadcast",
930 "lwp_cond_wait_sys", /* 415 */
935 "lwp_detach", /* 420 */
940 "shm_open", /* 425 */
950 "aio_return", /* 435 */
955 "mq_unlink", /* 440 */
960 "mq_getattr", /* 445 */
965 "lw_sem_incr", /* 450 */
970 static const int syscall_names_max
= 453;
973 hpux_unimplemented(unsigned long arg1
,unsigned long arg2
,unsigned long arg3
,
974 unsigned long arg4
,unsigned long arg5
,unsigned long arg6
,
975 unsigned long arg7
,unsigned long sc_num
)
977 /* NOTE: sc_num trashes arg8 for the few syscalls that actually
978 * have a valid 8th argument.
980 const char *name
= NULL
;
981 if ( sc_num
<= syscall_names_max
&& sc_num
>= 0 ) {
982 name
= syscall_names
[sc_num
];
986 printk(KERN_DEBUG
"Unimplemented HP-UX syscall emulation. Syscall #%lu (%s)\n",
989 printk(KERN_DEBUG
"Unimplemented unknown HP-UX syscall emulation. Syscall #%lu\n",
993 printk(KERN_DEBUG
" Args: %lx %lx %lx %lx %lx %lx %lx\n",
994 arg1
, arg2
, arg3
, arg4
, arg5
, arg6
, arg7
);