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/file.h>
27 #include <linux/namei.h>
28 #include <linux/sched.h>
29 #include <linux/slab.h>
30 #include <linux/smp_lock.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 *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 = vfs_statfs(s, &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 vfs_statfs_hpux(struct super_block *sb, struct hpux_statfs *buf)
193 retval = vfs_statfs(sb, &st);
197 memset(buf, 0, sizeof(*buf));
198 buf->f_type = st.f_type;
199 buf->f_bsize = st.f_bsize;
200 buf->f_blocks = st.f_blocks;
201 buf->f_bfree = st.f_bfree;
202 buf->f_bavail = st.f_bavail;
203 buf->f_files = st.f_files;
204 buf->f_ffree = st.f_ffree;
205 buf->f_fsid[0] = st.f_fsid.val[0];
206 buf->f_fsid[1] = st.f_fsid.val[1];
212 asmlinkage long hpux_statfs(const char __user *path,
213 struct hpux_statfs __user *buf)
218 error = user_path_walk(path, &nd);
220 struct hpux_statfs tmp;
221 error = vfs_statfs_hpux(nd.dentry->d_inode->i_sb, &tmp);
222 if (!error && copy_to_user(buf, &tmp, sizeof(tmp)))
229 asmlinkage long hpux_fstatfs(unsigned int fd, struct hpux_statfs __user * buf)
232 struct hpux_statfs tmp;
239 error = vfs_statfs_hpux(file->f_dentry->d_inode->i_sb, &tmp);
240 if (!error && copy_to_user(buf, &tmp, sizeof(tmp)))
248 /* This function is called from hpux_utssys(); HP-UX implements
249 * uname() as an option to utssys().
251 * The form of this function is pretty much copied from sys_olduname(),
252 * defined in linux/arch/i386/kernel/sys_i386.c.
254 /* TODO: Are these put_user calls OK? Should they pass an int?
255 * (I copied it from sys_i386.c like this.)
257 static int hpux_uname(struct hpux_utsname *name)
263 if (!access_ok(VERIFY_WRITE,name,sizeof(struct hpux_utsname)))
268 error = __copy_to_user(&name->sysname,&system_utsname.sysname,HPUX_UTSLEN-1);
269 error |= __put_user(0,name->sysname+HPUX_UTSLEN-1);
270 error |= __copy_to_user(&name->nodename,&system_utsname.nodename,HPUX_UTSLEN-1);
271 error |= __put_user(0,name->nodename+HPUX_UTSLEN-1);
272 error |= __copy_to_user(&name->release,&system_utsname.release,HPUX_UTSLEN-1);
273 error |= __put_user(0,name->release+HPUX_UTSLEN-1);
274 error |= __copy_to_user(&name->version,&system_utsname.version,HPUX_UTSLEN-1);
275 error |= __put_user(0,name->version+HPUX_UTSLEN-1);
276 error |= __copy_to_user(&name->machine,&system_utsname.machine,HPUX_UTSLEN-1);
277 error |= __put_user(0,name->machine+HPUX_UTSLEN-1);
281 /* HP-UX utsname has no domainname field. */
283 /* TODO: Implement idnumber!!! */
285 error |= __put_user(0,name->idnumber);
286 error |= __put_user(0,name->idnumber+HPUX_SNLEN-1);
289 error = error ? -EFAULT : 0;
294 /* Note: HP-UX just uses the old suser() function to check perms
295 * in this system call. We'll use capable(CAP_SYS_ADMIN).
297 int hpux_utssys(char *ubuf, int n, int type)
304 return( hpux_uname( (struct hpux_utsname *)ubuf ) );
307 /* Obsolete (used to be umask().) */
312 return( hpux_ustat(new_decode_dev(n), (struct hpux_ustat *)ubuf) );
317 * On linux (unlike HP-UX), utsname.nodename
318 * is the same as the hostname.
320 * sys_sethostname() is defined in linux/kernel/sys.c.
322 if (!capable(CAP_SYS_ADMIN))
324 /* Unlike Linux, HP-UX returns an error if n==0: */
327 /* Unlike Linux, HP-UX truncates it if n is too big: */
328 len = (n <= __NEW_UTS_LEN) ? n : __NEW_UTS_LEN ;
329 return( sys_sethostname(ubuf, len) );
334 * sys_sethostname() is defined in linux/kernel/sys.c.
336 if (!capable(CAP_SYS_ADMIN))
338 /* Unlike Linux, HP-UX returns an error if n==0: */
341 /* Unlike Linux, HP-UX truncates it if n is too big: */
342 len = (n <= __NEW_UTS_LEN) ? n : __NEW_UTS_LEN ;
343 return( sys_sethostname(ubuf, len) );
348 * sys_gethostname() is defined in linux/kernel/sys.c.
350 /* Unlike Linux, HP-UX returns an error if n==0: */
353 return( sys_gethostname(ubuf, n) );
356 /* Supposedly called from setuname() in libc.
357 * TODO: When and why is this called?
358 * Is it ever even called?
360 * This code should look a lot like sys_sethostname(),
361 * defined in linux/kernel/sys.c. If that gets updated,
362 * update this code similarly.
364 if (!capable(CAP_SYS_ADMIN))
366 /* Unlike Linux, HP-UX returns an error if n==0: */
369 /* Unlike Linux, HP-UX truncates it if n is too big: */
370 len = (n <= __NEW_UTS_LEN) ? n : __NEW_UTS_LEN ;
372 /* TODO: print a warning about using this? */
373 down_write(&uts_sem);
375 if (!copy_from_user(system_utsname.sysname, ubuf, len)) {
376 system_utsname.sysname[len] = 0;
383 /* Sets utsname.release, if you're allowed.
384 * Undocumented. Used by swinstall to change the
385 * OS version, during OS updates. Yuck!!!
387 * This code should look a lot like sys_sethostname()
388 * in linux/kernel/sys.c. If that gets updated, update
389 * this code similarly.
391 if (!capable(CAP_SYS_ADMIN))
393 /* Unlike Linux, HP-UX returns an error if n==0: */
396 /* Unlike Linux, HP-UX truncates it if n is too big: */
397 len = (n <= __NEW_UTS_LEN) ? n : __NEW_UTS_LEN ;
399 /* TODO: print a warning about this? */
400 down_write(&uts_sem);
402 if (!copy_from_user(system_utsname.release, ubuf, len)) {
403 system_utsname.release[len] = 0;
410 /* This system call returns -EFAULT if given an unknown type.
411 * Why not -EINVAL? I don't know, it's just not what they did.
417 int hpux_getdomainname(char *name, int len)
424 nlen = strlen(system_utsname.domainname) + 1;
428 if(len > __NEW_UTS_LEN)
430 if(copy_to_user(name, system_utsname.domainname, len))
439 int hpux_pipe(int *kstack_fildes)
444 error = do_pipe(kstack_fildes);
449 /* lies - says it works, but it really didn't lock anything */
450 int hpux_lockf(int fildes, int function, off_t size)
455 int hpux_sysfs(int opcode, unsigned long arg1, unsigned long arg2)
461 /*Unimplemented HP-UX syscall emulation. Syscall #334 (sysfs)
462 Args: 1 80057bf4 0 400179f0 0 0 0 */
463 printk(KERN_DEBUG "in hpux_sysfs\n");
464 printk(KERN_DEBUG "hpux_sysfs called with opcode = %d\n", opcode);
465 printk(KERN_DEBUG "hpux_sysfs called with arg1='%lx'\n", arg1);
467 if ( opcode == 1 ) { /* GETFSIND */
468 len = strlen_user((char *)arg1);
469 printk(KERN_DEBUG "len of arg1 = %d\n", len);
471 fsname = (char *) kmalloc(len+1, GFP_KERNEL);
473 printk(KERN_DEBUG "failed to kmalloc fsname\n");
477 if ( copy_from_user(fsname, (char *)arg1, len+1) ) {
478 printk(KERN_DEBUG "failed to copy_from_user fsname\n");
483 printk(KERN_DEBUG "that is '%s' as (char *)\n", fsname);
484 if ( !strcmp(fsname, "hfs") ) {
492 printk(KERN_DEBUG "returning fstype=%d\n", fstype);
493 return fstype; /* something other than default */
501 /* Table of syscall names and handle for unimplemented routines */
502 static const char *syscall_names[] = {
583 "setgroups", /* 80 */
603 "getpriority", /* 100 */
613 "sigsetmask", /* 110 */
633 "ftruncate", /* 130 */
648 "setrlimit", /* 145 */
678 "osetcontext", /* 175 */
683 "cnodeid/mysite", /* 180 */
688 "sigprocmask", /* 185 */
698 "getdirentries", /* 195 */
728 "sigsetstatemask", /* 225 */
733 "pathconf", /* 230 */
743 "getaudid", /* 240 */
748 "setevent", /* 245 */
783 "getsockopt", /* 280 */
798 "proc_recv", /* 295 */
803 "ipcnamerase", /* 300 */
813 "ipcshutdown", /* 310 */
842 "sched_setscheduler",
843 "sched_getscheduler", /* 340 */
845 "sched_get_priority_max",
846 "sched_get_priority_min",
847 "sched_rr_get_interval",
848 "clock_settime", /* 345 */
853 "timer_settime", /* 350 */
863 "ftruncate64", /* 360 */
873 "truncate64", /* 370 */
883 "setcontext", /* 380 */
888 "sendmsg2", /* 385 */
893 "lwp_terminate", /* 390 */
898 "lwp_abort_syscall", /* 395 */
903 "ksleep_abort", /* 400 */
913 "lwp_mutex_lock_sys", /* 410 */
917 "lwp_cond_broadcast",
918 "lwp_cond_wait_sys", /* 415 */
923 "lwp_detach", /* 420 */
928 "shm_open", /* 425 */
938 "aio_return", /* 435 */
943 "mq_unlink", /* 440 */
948 "mq_getattr", /* 445 */
953 "lw_sem_incr", /* 450 */
958 static const int syscall_names_max = 453;
961 hpux_unimplemented(unsigned long arg1,unsigned long arg2,unsigned long arg3,
962 unsigned long arg4,unsigned long arg5,unsigned long arg6,
963 unsigned long arg7,unsigned long sc_num)
965 /* NOTE: sc_num trashes arg8 for the few syscalls that actually
966 * have a valid 8th argument.
968 const char *name = NULL;
969 if ( sc_num <= syscall_names_max && sc_num >= 0 ) {
970 name = syscall_names[sc_num];
974 printk(KERN_DEBUG "Unimplemented HP-UX syscall emulation. Syscall #%lu (%s)\n",
977 printk(KERN_DEBUG "Unimplemented unknown HP-UX syscall emulation. Syscall #%lu\n",
981 printk(KERN_DEBUG " Args: %lx %lx %lx %lx %lx %lx %lx\n",
982 arg1, arg2, arg3, arg4, arg5, arg6, arg7);