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/syscalls.h>
32 #include <linux/utsname.h>
33 #include <linux/vfs.h>
34 #include <linux/vmalloc.h>
36 #include <asm/errno.h>
37 #include <asm/pgalloc.h>
38 #include <asm/uaccess.h>
40 unsigned long hpux_brk(unsigned long addr)
42 /* Sigh. Looks like HP/UX libc relies on kernel bugs. */
43 return sys_brk(addr + PAGE_SIZE);
51 /* Random other syscalls */
53 int hpux_nice(int priority_change)
63 int hpux_wait(int __user *stat_loc)
65 return sys_waitpid(-1, stat_loc, 0);
68 int hpux_setpgrp(void)
70 return sys_setpgid(0,0);
73 int hpux_setpgrp3(void)
75 return hpux_setpgrp();
78 #define _SC_CPU_VERSION 10001
79 #define _SC_OPEN_MAX 4
80 #define CPU_PA_RISC1_1 0x210
82 int hpux_sysconf(int which)
86 return CPU_PA_RISC1_1;
94 /*****************************************************************************/
100 char sysname[HPUX_UTSLEN];
101 char nodename[HPUX_UTSLEN];
102 char release[HPUX_UTSLEN];
103 char version[HPUX_UTSLEN];
104 char machine[HPUX_UTSLEN];
105 char idnumber[HPUX_SNLEN];
109 int32_t f_tfree; /* total free (daddr_t) */
110 u_int32_t f_tinode; /* total inodes free (ino_t) */
111 char f_fname[6]; /* filsys name */
112 char f_fpack[6]; /* filsys pack name */
113 u_int32_t f_blksize; /* filsys block size (int) */
117 * HPUX's utssys() call. It's a collection of miscellaneous functions,
118 * alas, so there's no nice way of splitting them up.
121 /* This function is called from hpux_utssys(); HP-UX implements
122 * ustat() as an option to utssys().
124 * Now, struct ustat on HP-UX is exactly the same as on Linux, except
125 * that it contains one addition field on the end, int32_t f_blksize.
126 * So, we could have written this function to just call the Linux
127 * sys_ustat(), (defined in linux/fs/super.c), and then just
128 * added this additional field to the user's structure. But I figure
129 * if we're gonna be digging through filesystem structures to get
130 * this, we might as well just do the whole enchilada all in one go.
132 * So, most of this function is almost identical to sys_ustat().
133 * I have placed comments at the few lines changed or added, to
134 * aid in porting forward if and when sys_ustat() is changed from
135 * its form in kernel 2.2.5.
137 static int hpux_ustat(dev_t dev, struct hpux_ustat __user *ubuf)
139 struct hpux_ustat tmp; /* Changed to hpux_ustat */
141 int err = vfs_ustat(dev, &sbuf);
145 memset(&tmp,0,sizeof(tmp));
147 tmp.f_tfree = (int32_t)sbuf.f_bfree;
148 tmp.f_tinode = (u_int32_t)sbuf.f_ffree;
149 tmp.f_blksize = (u_int32_t)sbuf.f_bsize; /* Added this line */
151 err = copy_to_user(ubuf, &tmp, sizeof(tmp)) ? -EFAULT : 0;
157 * Wrapper for hpux statfs call. At the moment, just calls the linux native one
158 * and ignores the extra fields at the end of the hpux statfs struct.
162 typedef int32_t hpux_fsid_t[2]; /* file system ID type */
163 typedef uint16_t hpux_site_t;
166 int32_t f_type; /* type of info, zero for now */
167 int32_t f_bsize; /* fundamental file system block size */
168 int32_t f_blocks; /* total blocks in file system */
169 int32_t f_bfree; /* free block in fs */
170 int32_t f_bavail; /* free blocks avail to non-superuser */
171 int32_t f_files; /* total file nodes in file system */
172 int32_t f_ffree; /* free file nodes in fs */
173 hpux_fsid_t f_fsid; /* file system ID */
174 int32_t f_magic; /* file system magic number */
175 int32_t f_featurebits; /* file system features */
176 int32_t f_spare[4]; /* spare for later */
177 hpux_site_t f_cnode; /* cluster node where mounted */
181 static int do_statfs_hpux(struct kstatfs *st, struct hpux_statfs __user *p)
183 struct hpux_statfs buf;
184 memset(&buf, 0, sizeof(buf));
185 buf.f_type = st->f_type;
186 buf.f_bsize = st->f_bsize;
187 buf.f_blocks = st->f_blocks;
188 buf.f_bfree = st->f_bfree;
189 buf.f_bavail = st->f_bavail;
190 buf.f_files = st->f_files;
191 buf.f_ffree = st->f_ffree;
192 buf.f_fsid[0] = st->f_fsid.val[0];
193 buf.f_fsid[1] = st->f_fsid.val[1];
194 if (copy_to_user(p, &buf, sizeof(buf)))
200 asmlinkage long hpux_statfs(const char __user *pathname,
201 struct hpux_statfs __user *buf)
204 int error = user_statfs(pathname, &st);
206 error = do_statfs_hpux(&st, buf);
210 asmlinkage long hpux_fstatfs(unsigned int fd, struct hpux_statfs __user * buf)
213 int error = fd_statfs(fd, &st);
215 error = do_statfs_hpux(&st, buf);
220 /* This function is called from hpux_utssys(); HP-UX implements
221 * uname() as an option to utssys().
223 * The form of this function is pretty much copied from sys_olduname(),
224 * defined in linux/arch/i386/kernel/sys_i386.c.
226 /* TODO: Are these put_user calls OK? Should they pass an int?
227 * (I copied it from sys_i386.c like this.)
229 static int hpux_uname(struct hpux_utsname __user *name)
235 if (!access_ok(VERIFY_WRITE,name,sizeof(struct hpux_utsname)))
240 error = __copy_to_user(&name->sysname, &utsname()->sysname,
242 error |= __put_user(0, name->sysname + HPUX_UTSLEN - 1);
243 error |= __copy_to_user(&name->nodename, &utsname()->nodename,
245 error |= __put_user(0, name->nodename + HPUX_UTSLEN - 1);
246 error |= __copy_to_user(&name->release, &utsname()->release,
248 error |= __put_user(0, name->release + HPUX_UTSLEN - 1);
249 error |= __copy_to_user(&name->version, &utsname()->version,
251 error |= __put_user(0, name->version + HPUX_UTSLEN - 1);
252 error |= __copy_to_user(&name->machine, &utsname()->machine,
254 error |= __put_user(0, name->machine + HPUX_UTSLEN - 1);
258 /* HP-UX utsname has no domainname field. */
260 /* TODO: Implement idnumber!!! */
262 error |= __put_user(0,name->idnumber);
263 error |= __put_user(0,name->idnumber+HPUX_SNLEN-1);
266 error = error ? -EFAULT : 0;
271 /* Note: HP-UX just uses the old suser() function to check perms
272 * in this system call. We'll use capable(CAP_SYS_ADMIN).
274 int hpux_utssys(char __user *ubuf, int n, int type)
281 return hpux_uname((struct hpux_utsname __user *)ubuf);
284 /* Obsolete (used to be umask().) */
289 return hpux_ustat(new_decode_dev(n),
290 (struct hpux_ustat __user *)ubuf);
295 * On linux (unlike HP-UX), utsname.nodename
296 * is the same as the hostname.
298 * sys_sethostname() is defined in linux/kernel/sys.c.
300 if (!capable(CAP_SYS_ADMIN))
302 /* Unlike Linux, HP-UX returns an error if n==0: */
305 /* Unlike Linux, HP-UX truncates it if n is too big: */
306 len = (n <= __NEW_UTS_LEN) ? n : __NEW_UTS_LEN ;
307 return sys_sethostname(ubuf, len);
312 * sys_sethostname() is defined in linux/kernel/sys.c.
314 if (!capable(CAP_SYS_ADMIN))
316 /* Unlike Linux, HP-UX returns an error if n==0: */
319 /* Unlike Linux, HP-UX truncates it if n is too big: */
320 len = (n <= __NEW_UTS_LEN) ? n : __NEW_UTS_LEN ;
321 return sys_sethostname(ubuf, len);
326 * sys_gethostname() is defined in linux/kernel/sys.c.
328 /* Unlike Linux, HP-UX returns an error if n==0: */
331 return sys_gethostname(ubuf, n);
334 /* Supposedly called from setuname() in libc.
335 * TODO: When and why is this called?
336 * Is it ever even called?
338 * This code should look a lot like sys_sethostname(),
339 * defined in linux/kernel/sys.c. If that gets updated,
340 * update this code similarly.
342 if (!capable(CAP_SYS_ADMIN))
344 /* Unlike Linux, HP-UX returns an error if n==0: */
347 /* Unlike Linux, HP-UX truncates it if n is too big: */
348 len = (n <= __NEW_UTS_LEN) ? n : __NEW_UTS_LEN ;
350 /* TODO: print a warning about using this? */
351 down_write(&uts_sem);
353 if (!copy_from_user(utsname()->sysname, ubuf, len)) {
354 utsname()->sysname[len] = 0;
361 /* Sets utsname.release, if you're allowed.
362 * Undocumented. Used by swinstall to change the
363 * OS version, during OS updates. Yuck!!!
365 * This code should look a lot like sys_sethostname()
366 * in linux/kernel/sys.c. If that gets updated, update
367 * this code similarly.
369 if (!capable(CAP_SYS_ADMIN))
371 /* Unlike Linux, HP-UX returns an error if n==0: */
374 /* Unlike Linux, HP-UX truncates it if n is too big: */
375 len = (n <= __NEW_UTS_LEN) ? n : __NEW_UTS_LEN ;
377 /* TODO: print a warning about this? */
378 down_write(&uts_sem);
380 if (!copy_from_user(utsname()->release, ubuf, len)) {
381 utsname()->release[len] = 0;
388 /* This system call returns -EFAULT if given an unknown type.
389 * Why not -EINVAL? I don't know, it's just not what they did.
395 int hpux_getdomainname(char __user *name, int len)
402 nlen = strlen(utsname()->domainname) + 1;
406 if(len > __NEW_UTS_LEN)
408 if(copy_to_user(name, utsname()->domainname, len))
417 int hpux_pipe(int *kstack_fildes)
419 return do_pipe_flags(kstack_fildes, 0);
422 /* lies - says it works, but it really didn't lock anything */
423 int hpux_lockf(int fildes, int function, off_t size)
428 int hpux_sysfs(int opcode, unsigned long arg1, unsigned long arg2)
434 /*Unimplemented HP-UX syscall emulation. Syscall #334 (sysfs)
435 Args: 1 80057bf4 0 400179f0 0 0 0 */
436 printk(KERN_DEBUG "in hpux_sysfs\n");
437 printk(KERN_DEBUG "hpux_sysfs called with opcode = %d\n", opcode);
438 printk(KERN_DEBUG "hpux_sysfs called with arg1='%lx'\n", arg1);
440 if ( opcode == 1 ) { /* GETFSIND */
441 char __user *user_fsname = (char __user *)arg1;
442 len = strlen_user(user_fsname);
443 printk(KERN_DEBUG "len of arg1 = %d\n", len);
446 fsname = kmalloc(len, GFP_KERNEL);
448 printk(KERN_DEBUG "failed to kmalloc fsname\n");
452 if (copy_from_user(fsname, user_fsname, len)) {
453 printk(KERN_DEBUG "failed to copy_from_user fsname\n");
458 /* String could be altered by userspace after strlen_user() */
459 fsname[len - 1] = '\0';
461 printk(KERN_DEBUG "that is '%s' as (char *)\n", fsname);
462 if ( !strcmp(fsname, "hfs") ) {
470 printk(KERN_DEBUG "returning fstype=%d\n", fstype);
471 return fstype; /* something other than default */
479 /* Table of syscall names and handle for unimplemented routines */
480 static const char * const syscall_names[] = {
561 "setgroups", /* 80 */
581 "getpriority", /* 100 */
591 "sigsetmask", /* 110 */
611 "ftruncate", /* 130 */
626 "setrlimit", /* 145 */
656 "osetcontext", /* 175 */
661 "cnodeid/mysite", /* 180 */
666 "sigprocmask", /* 185 */
676 "getdirentries", /* 195 */
706 "sigsetstatemask", /* 225 */
711 "pathconf", /* 230 */
721 "getaudid", /* 240 */
726 "setevent", /* 245 */
761 "getsockopt", /* 280 */
776 "proc_recv", /* 295 */
781 "ipcnamerase", /* 300 */
791 "ipcshutdown", /* 310 */
820 "sched_setscheduler",
821 "sched_getscheduler", /* 340 */
823 "sched_get_priority_max",
824 "sched_get_priority_min",
825 "sched_rr_get_interval",
826 "clock_settime", /* 345 */
831 "timer_settime", /* 350 */
841 "ftruncate64", /* 360 */
851 "truncate64", /* 370 */
861 "setcontext", /* 380 */
866 "sendmsg2", /* 385 */
871 "lwp_terminate", /* 390 */
876 "lwp_abort_syscall", /* 395 */
881 "ksleep_abort", /* 400 */
891 "lwp_mutex_lock_sys", /* 410 */
895 "lwp_cond_broadcast",
896 "lwp_cond_wait_sys", /* 415 */
901 "lwp_detach", /* 420 */
906 "shm_open", /* 425 */
916 "aio_return", /* 435 */
921 "mq_unlink", /* 440 */
926 "mq_getattr", /* 445 */
931 "lw_sem_incr", /* 450 */
936 static const int syscall_names_max = 453;
939 hpux_unimplemented(unsigned long arg1,unsigned long arg2,unsigned long arg3,
940 unsigned long arg4,unsigned long arg5,unsigned long arg6,
941 unsigned long arg7,unsigned long sc_num)
943 /* NOTE: sc_num trashes arg8 for the few syscalls that actually
944 * have a valid 8th argument.
946 const char *name = NULL;
947 if ( sc_num <= syscall_names_max && sc_num >= 0 ) {
948 name = syscall_names[sc_num];
952 printk(KERN_DEBUG "Unimplemented HP-UX syscall emulation. Syscall #%lu (%s)\n",
955 printk(KERN_DEBUG "Unimplemented unknown HP-UX syscall emulation. Syscall #%lu\n",
959 printk(KERN_DEBUG " Args: %lx %lx %lx %lx %lx %lx %lx\n",
960 arg1, arg2, arg3, arg4, arg5, arg6, arg7);