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 super_block *s;
140 struct hpux_ustat tmp; /* Changed to hpux_ustat */
144 s = user_get_super(dev);
147 err = statfs_by_dentry(s->s_root, &sbuf);
152 memset(&tmp,0,sizeof(tmp));
154 tmp.f_tfree = (int32_t)sbuf.f_bfree;
155 tmp.f_tinode = (u_int32_t)sbuf.f_ffree;
156 tmp.f_blksize = (u_int32_t)sbuf.f_bsize; /* Added this line */
158 err = copy_to_user(ubuf, &tmp, sizeof(tmp)) ? -EFAULT : 0;
164 * Wrapper for hpux statfs call. At the moment, just calls the linux native one
165 * and ignores the extra fields at the end of the hpux statfs struct.
169 typedef int32_t hpux_fsid_t[2]; /* file system ID type */
170 typedef uint16_t hpux_site_t;
173 int32_t f_type; /* type of info, zero for now */
174 int32_t f_bsize; /* fundamental file system block size */
175 int32_t f_blocks; /* total blocks in file system */
176 int32_t f_bfree; /* free block in fs */
177 int32_t f_bavail; /* free blocks avail to non-superuser */
178 int32_t f_files; /* total file nodes in file system */
179 int32_t f_ffree; /* free file nodes in fs */
180 hpux_fsid_t f_fsid; /* file system ID */
181 int32_t f_magic; /* file system magic number */
182 int32_t f_featurebits; /* file system features */
183 int32_t f_spare[4]; /* spare for later */
184 hpux_site_t f_cnode; /* cluster node where mounted */
188 static int do_statfs_hpux(struct kstatfs *st, struct hpux_statfs __user *p)
190 struct hpux_statfs buf;
191 memset(&buf, 0, sizeof(buf));
192 buf.f_type = st->f_type;
193 buf.f_bsize = st->f_bsize;
194 buf.f_blocks = st->f_blocks;
195 buf.f_bfree = st->f_bfree;
196 buf.f_bavail = st->f_bavail;
197 buf.f_files = st->f_files;
198 buf.f_ffree = st->f_ffree;
199 buf.f_fsid[0] = st->f_fsid.val[0];
200 buf.f_fsid[1] = st->f_fsid.val[1];
201 if (copy_to_user(p, &buf, sizeof(buf)))
207 asmlinkage long hpux_statfs(const char __user *pathname,
208 struct hpux_statfs __user *buf)
211 int error = user_statfs(pathname, &st);
213 error = do_statfs_hpux(&st, buf);
217 asmlinkage long hpux_fstatfs(unsigned int fd, struct hpux_statfs __user * buf)
220 int error = fd_statfs(fd, &st);
222 error = do_statfs_hpux(&st, buf);
227 /* This function is called from hpux_utssys(); HP-UX implements
228 * uname() as an option to utssys().
230 * The form of this function is pretty much copied from sys_olduname(),
231 * defined in linux/arch/i386/kernel/sys_i386.c.
233 /* TODO: Are these put_user calls OK? Should they pass an int?
234 * (I copied it from sys_i386.c like this.)
236 static int hpux_uname(struct hpux_utsname __user *name)
242 if (!access_ok(VERIFY_WRITE,name,sizeof(struct hpux_utsname)))
247 error = __copy_to_user(&name->sysname, &utsname()->sysname,
249 error |= __put_user(0, name->sysname + HPUX_UTSLEN - 1);
250 error |= __copy_to_user(&name->nodename, &utsname()->nodename,
252 error |= __put_user(0, name->nodename + HPUX_UTSLEN - 1);
253 error |= __copy_to_user(&name->release, &utsname()->release,
255 error |= __put_user(0, name->release + HPUX_UTSLEN - 1);
256 error |= __copy_to_user(&name->version, &utsname()->version,
258 error |= __put_user(0, name->version + HPUX_UTSLEN - 1);
259 error |= __copy_to_user(&name->machine, &utsname()->machine,
261 error |= __put_user(0, name->machine + HPUX_UTSLEN - 1);
265 /* HP-UX utsname has no domainname field. */
267 /* TODO: Implement idnumber!!! */
269 error |= __put_user(0,name->idnumber);
270 error |= __put_user(0,name->idnumber+HPUX_SNLEN-1);
273 error = error ? -EFAULT : 0;
278 /* Note: HP-UX just uses the old suser() function to check perms
279 * in this system call. We'll use capable(CAP_SYS_ADMIN).
281 int hpux_utssys(char __user *ubuf, int n, int type)
288 return hpux_uname((struct hpux_utsname __user *)ubuf);
291 /* Obsolete (used to be umask().) */
296 return hpux_ustat(new_decode_dev(n),
297 (struct hpux_ustat __user *)ubuf);
302 * On linux (unlike HP-UX), utsname.nodename
303 * is the same as the hostname.
305 * sys_sethostname() is defined in linux/kernel/sys.c.
307 if (!capable(CAP_SYS_ADMIN))
309 /* Unlike Linux, HP-UX returns an error if n==0: */
312 /* Unlike Linux, HP-UX truncates it if n is too big: */
313 len = (n <= __NEW_UTS_LEN) ? n : __NEW_UTS_LEN ;
314 return sys_sethostname(ubuf, len);
319 * sys_sethostname() is defined in linux/kernel/sys.c.
321 if (!capable(CAP_SYS_ADMIN))
323 /* Unlike Linux, HP-UX returns an error if n==0: */
326 /* Unlike Linux, HP-UX truncates it if n is too big: */
327 len = (n <= __NEW_UTS_LEN) ? n : __NEW_UTS_LEN ;
328 return sys_sethostname(ubuf, len);
333 * sys_gethostname() is defined in linux/kernel/sys.c.
335 /* Unlike Linux, HP-UX returns an error if n==0: */
338 return sys_gethostname(ubuf, n);
341 /* Supposedly called from setuname() in libc.
342 * TODO: When and why is this called?
343 * Is it ever even called?
345 * This code should look a lot like sys_sethostname(),
346 * defined in linux/kernel/sys.c. If that gets updated,
347 * update this code similarly.
349 if (!capable(CAP_SYS_ADMIN))
351 /* Unlike Linux, HP-UX returns an error if n==0: */
354 /* Unlike Linux, HP-UX truncates it if n is too big: */
355 len = (n <= __NEW_UTS_LEN) ? n : __NEW_UTS_LEN ;
357 /* TODO: print a warning about using this? */
358 down_write(&uts_sem);
360 if (!copy_from_user(utsname()->sysname, ubuf, len)) {
361 utsname()->sysname[len] = 0;
368 /* Sets utsname.release, if you're allowed.
369 * Undocumented. Used by swinstall to change the
370 * OS version, during OS updates. Yuck!!!
372 * This code should look a lot like sys_sethostname()
373 * in linux/kernel/sys.c. If that gets updated, update
374 * this code similarly.
376 if (!capable(CAP_SYS_ADMIN))
378 /* Unlike Linux, HP-UX returns an error if n==0: */
381 /* Unlike Linux, HP-UX truncates it if n is too big: */
382 len = (n <= __NEW_UTS_LEN) ? n : __NEW_UTS_LEN ;
384 /* TODO: print a warning about this? */
385 down_write(&uts_sem);
387 if (!copy_from_user(utsname()->release, ubuf, len)) {
388 utsname()->release[len] = 0;
395 /* This system call returns -EFAULT if given an unknown type.
396 * Why not -EINVAL? I don't know, it's just not what they did.
402 int hpux_getdomainname(char __user *name, int len)
409 nlen = strlen(utsname()->domainname) + 1;
413 if(len > __NEW_UTS_LEN)
415 if(copy_to_user(name, utsname()->domainname, len))
424 int hpux_pipe(int *kstack_fildes)
426 return do_pipe_flags(kstack_fildes, 0);
429 /* lies - says it works, but it really didn't lock anything */
430 int hpux_lockf(int fildes, int function, off_t size)
435 int hpux_sysfs(int opcode, unsigned long arg1, unsigned long arg2)
441 /*Unimplemented HP-UX syscall emulation. Syscall #334 (sysfs)
442 Args: 1 80057bf4 0 400179f0 0 0 0 */
443 printk(KERN_DEBUG "in hpux_sysfs\n");
444 printk(KERN_DEBUG "hpux_sysfs called with opcode = %d\n", opcode);
445 printk(KERN_DEBUG "hpux_sysfs called with arg1='%lx'\n", arg1);
447 if ( opcode == 1 ) { /* GETFSIND */
448 char __user *user_fsname = (char __user *)arg1;
449 len = strlen_user(user_fsname);
450 printk(KERN_DEBUG "len of arg1 = %d\n", len);
453 fsname = kmalloc(len, GFP_KERNEL);
455 printk(KERN_DEBUG "failed to kmalloc fsname\n");
459 if (copy_from_user(fsname, user_fsname, len)) {
460 printk(KERN_DEBUG "failed to copy_from_user fsname\n");
465 /* String could be altered by userspace after strlen_user() */
468 printk(KERN_DEBUG "that is '%s' as (char *)\n", fsname);
469 if ( !strcmp(fsname, "hfs") ) {
477 printk(KERN_DEBUG "returning fstype=%d\n", fstype);
478 return fstype; /* something other than default */
486 /* Table of syscall names and handle for unimplemented routines */
487 static const char * const syscall_names[] = {
568 "setgroups", /* 80 */
588 "getpriority", /* 100 */
598 "sigsetmask", /* 110 */
618 "ftruncate", /* 130 */
633 "setrlimit", /* 145 */
663 "osetcontext", /* 175 */
668 "cnodeid/mysite", /* 180 */
673 "sigprocmask", /* 185 */
683 "getdirentries", /* 195 */
713 "sigsetstatemask", /* 225 */
718 "pathconf", /* 230 */
728 "getaudid", /* 240 */
733 "setevent", /* 245 */
768 "getsockopt", /* 280 */
783 "proc_recv", /* 295 */
788 "ipcnamerase", /* 300 */
798 "ipcshutdown", /* 310 */
827 "sched_setscheduler",
828 "sched_getscheduler", /* 340 */
830 "sched_get_priority_max",
831 "sched_get_priority_min",
832 "sched_rr_get_interval",
833 "clock_settime", /* 345 */
838 "timer_settime", /* 350 */
848 "ftruncate64", /* 360 */
858 "truncate64", /* 370 */
868 "setcontext", /* 380 */
873 "sendmsg2", /* 385 */
878 "lwp_terminate", /* 390 */
883 "lwp_abort_syscall", /* 395 */
888 "ksleep_abort", /* 400 */
898 "lwp_mutex_lock_sys", /* 410 */
902 "lwp_cond_broadcast",
903 "lwp_cond_wait_sys", /* 415 */
908 "lwp_detach", /* 420 */
913 "shm_open", /* 425 */
923 "aio_return", /* 435 */
928 "mq_unlink", /* 440 */
933 "mq_getattr", /* 445 */
938 "lw_sem_incr", /* 450 */
943 static const int syscall_names_max = 453;
946 hpux_unimplemented(unsigned long arg1,unsigned long arg2,unsigned long arg3,
947 unsigned long arg4,unsigned long arg5,unsigned long arg6,
948 unsigned long arg7,unsigned long sc_num)
950 /* NOTE: sc_num trashes arg8 for the few syscalls that actually
951 * have a valid 8th argument.
953 const char *name = NULL;
954 if ( sc_num <= syscall_names_max && sc_num >= 0 ) {
955 name = syscall_names[sc_num];
959 printk(KERN_DEBUG "Unimplemented HP-UX syscall emulation. Syscall #%lu (%s)\n",
962 printk(KERN_DEBUG "Unimplemented unknown HP-UX syscall emulation. Syscall #%lu\n",
966 printk(KERN_DEBUG " Args: %lx %lx %lx %lx %lx %lx %lx\n",
967 arg1, arg2, arg3, arg4, arg5, arg6, arg7);