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1.1 nbrk 1: /* $OpenBSD: svr4_misc.c,v 1.47 2007/03/15 10:22:30 art Exp $ */
2: /* $NetBSD: svr4_misc.c,v 1.42 1996/12/06 03:22:34 christos Exp $ */
3:
4: /*
5: * Copyright (c) 1994 Christos Zoulas
6: * All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. The name of the author may not be used to endorse or promote products
17: * derived from this software without specific prior written permission
18: *
19: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29: */
30:
31: /*
32: * SVR4 compatibility module.
33: *
34: * SVR4 system calls that are implemented differently in BSD are
35: * handled here.
36: */
37:
38: #include <sys/param.h>
39: #include <sys/systm.h>
40: #include <sys/exec.h>
41: #include <sys/exec_olf.h>
42: #include <sys/namei.h>
43: #include <sys/dirent.h>
44: #include <sys/proc.h>
45: #include <sys/sched.h>
46: #include <sys/file.h>
47: #include <sys/stat.h>
48: #include <sys/time.h>
49: #include <sys/filedesc.h>
50: #include <sys/ioctl.h>
51: #include <sys/kernel.h>
52: #include <sys/malloc.h>
53: #include <sys/mbuf.h>
54: #include <sys/ktrace.h>
55: #include <sys/mman.h>
56: #include <sys/mount.h>
57: #include <sys/pool.h>
58: #include <sys/resource.h>
59: #include <sys/resourcevar.h>
60: #include <sys/socket.h>
61: #include <sys/vnode.h>
62: #include <sys/uio.h>
63: #include <sys/wait.h>
64: #include <sys/utsname.h>
65: #include <sys/unistd.h>
66: #include <sys/times.h>
67: #include <sys/sem.h>
68: #include <sys/msg.h>
69: #include <sys/ptrace.h>
70: #include <sys/signalvar.h>
71:
72: #include <netinet/in.h>
73: #include <sys/syscallargs.h>
74:
75: #include <miscfs/specfs/specdev.h>
76:
77: #include <compat/svr4/svr4_types.h>
78: #include <compat/svr4/svr4_signal.h>
79: #include <compat/svr4/svr4_syscallargs.h>
80: #include <compat/svr4/svr4_util.h>
81: #include <compat/svr4/svr4_time.h>
82: #include <compat/svr4/svr4_dirent.h>
83: #include <compat/svr4/svr4_ulimit.h>
84: #include <compat/svr4/svr4_hrt.h>
85: #include <compat/svr4/svr4_wait.h>
86: #include <compat/svr4/svr4_statvfs.h>
87: #include <compat/svr4/svr4_sysconfig.h>
88: #include <compat/svr4/svr4_acl.h>
89:
90: #include <compat/common/compat_dir.h>
91:
92: #include <uvm/uvm_extern.h>
93:
94: static __inline clock_t timeval_to_clock_t(struct timeval *);
95: static int svr4_setinfo(struct proc *, int, svr4_siginfo_t *);
96:
97: struct svr4_hrtcntl_args;
98: static int svr4_hrtcntl(struct proc *, struct svr4_hrtcntl_args *,
99: register_t *);
100: static void bsd_statfs_to_svr4_statvfs(const struct statfs *,
101: struct svr4_statvfs *);
102: static void bsd_statfs_to_svr4_statvfs64(const struct statfs *,
103: struct svr4_statvfs64 *);
104: static struct proc *svr4_pfind(pid_t pid);
105:
106: static int svr4_mknod(struct proc *, register_t *, char *,
107: svr4_mode_t, svr4_dev_t);
108:
109: int
110: svr4_sys_wait(p, v, retval)
111: register struct proc *p;
112: void *v;
113: register_t *retval;
114: {
115: struct svr4_sys_wait_args *uap = v;
116: struct sys_wait4_args w4;
117: int error;
118: size_t sz = sizeof(*SCARG(&w4, status));
119:
120: SCARG(&w4, rusage) = NULL;
121: SCARG(&w4, options) = 0;
122:
123: if (SCARG(uap, status) == NULL) {
124: caddr_t sg = stackgap_init(p->p_emul);
125: SCARG(&w4, status) = stackgap_alloc(&sg, sz);
126: }
127: else
128: SCARG(&w4, status) = SCARG(uap, status);
129:
130: SCARG(&w4, pid) = WAIT_ANY;
131:
132: if ((error = sys_wait4(p, &w4, retval)) != 0)
133: return error;
134:
135: /*
136: * It looks like wait(2) on svr4/solaris/2.4 returns
137: * the status in retval[1], and the pid on retval[0].
138: * NB: this can break if register_t stops being an int.
139: */
140: return copyin(SCARG(&w4, status), &retval[1], sz);
141: }
142:
143:
144: int
145: svr4_sys_execv(p, v, retval)
146: register struct proc *p;
147: void *v;
148: register_t *retval;
149: {
150: struct svr4_sys_execv_args /* {
151: syscallarg(char *) path;
152: syscallarg(char **) argv;
153: } */ *uap = v;
154: struct sys_execve_args ap;
155: caddr_t sg;
156:
157: sg = stackgap_init(p->p_emul);
158: SVR4_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
159:
160: SCARG(&ap, path) = SCARG(uap, path);
161: SCARG(&ap, argp) = SCARG(uap, argp);
162: SCARG(&ap, envp) = NULL;
163:
164: return sys_execve(p, &ap, retval);
165: }
166:
167:
168: int
169: svr4_sys_execve(p, v, retval)
170: register struct proc *p;
171: void *v;
172: register_t *retval;
173: {
174: struct svr4_sys_execve_args /* {
175: syscallarg(char *) path;
176: syscallarg(char **) argv;
177: syscallarg(char **) envp;
178: } */ *uap = v;
179: struct sys_execve_args ap;
180: caddr_t sg;
181:
182: sg = stackgap_init(p->p_emul);
183: SVR4_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
184:
185: SCARG(&ap, path) = SCARG(uap, path);
186: SCARG(&ap, argp) = SCARG(uap, argp);
187: SCARG(&ap, envp) = SCARG(uap, envp);
188:
189: return sys_execve(p, &ap, retval);
190: }
191:
192:
193: int
194: svr4_sys_time(p, v, retval)
195: register struct proc *p;
196: void *v;
197: register_t *retval;
198: {
199: struct svr4_sys_time_args *uap = v;
200: int error = 0;
201: struct timeval tv;
202:
203: microtime(&tv);
204: if (SCARG(uap, t))
205: error = copyout(&tv.tv_sec, SCARG(uap, t),
206: sizeof(*(SCARG(uap, t))));
207: *retval = (int) tv.tv_sec;
208:
209: return error;
210: }
211:
212:
213: /*
214: * Read SVR4-style directory entries. We suck them into kernel space so
215: * that they can be massaged before being copied out to user code. Like
216: * SunOS, we squish out `empty' entries.
217: *
218: * This is quite ugly, but what do you expect from compatibility code?
219: */
220:
221: int svr4_readdir_callback(void *, struct dirent *, off_t);
222: int svr4_readdir64_callback(void *, struct dirent *, off_t);
223:
224: struct svr4_readdir_callback_args {
225: caddr_t outp;
226: int resid;
227: };
228:
229: int
230: svr4_readdir_callback(arg, bdp, cookie)
231: void *arg;
232: struct dirent *bdp;
233: off_t cookie;
234: {
235: struct svr4_dirent idb;
236: struct svr4_readdir_callback_args *cb = arg;
237: int svr4_reclen;
238: int error;
239:
240: svr4_reclen = SVR4_RECLEN(&idb, bdp->d_namlen);
241: if (cb->resid < svr4_reclen)
242: return (ENOMEM);
243:
244: idb.d_ino = (svr4_ino_t)bdp->d_fileno;
245: idb.d_off = (svr4_off_t)cookie;
246: idb.d_reclen = (u_short)svr4_reclen;
247: strlcpy(idb.d_name, bdp->d_name, sizeof(idb.d_name));
248: if ((error = copyout((caddr_t)&idb, cb->outp, svr4_reclen)))
249: return (error);
250:
251: cb->outp += svr4_reclen;
252: cb->resid -= svr4_reclen;
253:
254: return (0);
255: }
256:
257: int
258: svr4_readdir64_callback(arg, bdp, cookie)
259: void *arg;
260: struct dirent *bdp;
261: off_t cookie;
262: {
263: struct svr4_dirent64 idb;
264: struct svr4_readdir_callback_args *cb = arg;
265: int svr4_reclen;
266: int error;
267:
268: svr4_reclen = SVR4_RECLEN(&idb, bdp->d_namlen);
269: if (cb->resid < svr4_reclen)
270: return (ENOMEM);
271:
272: /*
273: * Massage in place to make a SVR4-shaped dirent (otherwise
274: * we have to worry about touching user memory outside of
275: * the copyout() call).
276: */
277: idb.d_ino = (svr4_ino64_t)bdp->d_fileno;
278: idb.d_off = (svr4_off64_t)cookie;
279: idb.d_reclen = (u_short)svr4_reclen;
280: strlcpy(idb.d_name, bdp->d_name, sizeof(idb.d_name));
281: if ((error = copyout((caddr_t)&idb, cb->outp, svr4_reclen)))
282: return (error);
283:
284: cb->outp += svr4_reclen;
285: cb->resid -= svr4_reclen;
286:
287: return (0);
288: }
289:
290:
291: int
292: svr4_sys_getdents(p, v, retval)
293: register struct proc *p;
294: void *v;
295: register_t *retval;
296: {
297: struct svr4_sys_getdents_args *uap = v;
298: struct svr4_readdir_callback_args args;
299: struct file *fp;
300: int error;
301:
302: if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0)
303: return (error);
304:
305: args.resid = SCARG(uap, nbytes);
306: args.outp = (caddr_t)SCARG(uap, buf);
307:
308: error = readdir_with_callback(fp, &fp->f_offset, SCARG(uap, nbytes),
309: svr4_readdir_callback, &args);
310: FRELE(fp);
311: if (error)
312: return (error);
313:
314: *retval = SCARG(uap, nbytes) - args.resid;
315:
316: return (0);
317: }
318:
319: int
320: svr4_sys_getdents64(p, v, retval)
321: register struct proc *p;
322: void *v;
323: register_t *retval;
324: {
325: struct svr4_sys_getdents64_args *uap = v;
326: struct svr4_readdir_callback_args args;
327: struct file *fp;
328: int error;
329:
330: if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0)
331: return (error);
332:
333: args.resid = SCARG(uap, nbytes);
334: args.outp = (caddr_t)SCARG(uap, dp);
335:
336: error = readdir_with_callback(fp, &fp->f_offset, SCARG(uap, nbytes),
337: svr4_readdir64_callback, &args);
338: FRELE(fp);
339: if (error)
340: return (error);
341:
342: *retval = SCARG(uap, nbytes) - args.resid;
343:
344: return (0);
345: }
346:
347: int
348: svr4_sys_mmap(p, v, retval)
349: register struct proc *p;
350: void *v;
351: register_t *retval;
352: {
353: struct svr4_sys_mmap_args *uap = v;
354: struct sys_mmap_args mm;
355: void *rp;
356: #define _MAP_NEW 0x80000000
357: /*
358: * Verify the arguments.
359: */
360: if (SCARG(uap, prot) & ~(PROT_READ | PROT_WRITE | PROT_EXEC))
361: return EINVAL; /* XXX still needed? */
362:
363: if (SCARG(uap, len) == 0)
364: return EINVAL;
365:
366: SCARG(&mm, prot) = SCARG(uap, prot);
367: SCARG(&mm, len) = SCARG(uap, len);
368: SCARG(&mm, flags) = SCARG(uap, flags) & ~_MAP_NEW;
369: SCARG(&mm, fd) = SCARG(uap, fd);
370: SCARG(&mm, addr) = SCARG(uap, addr);
371: SCARG(&mm, pos) = SCARG(uap, pos);
372:
373: rp = (void *) round_page((vaddr_t)p->p_vmspace->vm_daddr + MAXDSIZ);
374: if ((SCARG(&mm, flags) & MAP_FIXED) == 0 &&
375: SCARG(&mm, addr) != 0 && SCARG(&mm, addr) < rp)
376: SCARG(&mm, addr) = rp;
377:
378: return sys_mmap(p, &mm, retval);
379: }
380:
381: int
382: svr4_sys_mmap64(p, v, retval)
383: register struct proc *p;
384: void *v;
385: register_t *retval;
386: {
387: struct svr4_sys_mmap64_args *uap = v;
388: struct sys_mmap_args mm;
389: void *rp;
390: #define _MAP_NEW 0x80000000
391: /*
392: * Verify the arguments.
393: */
394: if (SCARG(uap, prot) & ~(PROT_READ | PROT_WRITE | PROT_EXEC))
395: return EINVAL; /* XXX still needed? */
396:
397: if (SCARG(uap, len) == 0)
398: return EINVAL;
399:
400: SCARG(&mm, prot) = SCARG(uap, prot);
401: SCARG(&mm, len) = SCARG(uap, len);
402: SCARG(&mm, flags) = SCARG(uap, flags) & ~_MAP_NEW;
403: SCARG(&mm, fd) = SCARG(uap, fd);
404: SCARG(&mm, addr) = SCARG(uap, addr);
405: SCARG(&mm, pos) = SCARG(uap, pos);
406:
407: rp = (void *) round_page((vaddr_t)p->p_vmspace->vm_daddr + MAXDSIZ);
408: if ((SCARG(&mm, flags) & MAP_FIXED) == 0 &&
409: SCARG(&mm, addr) != 0 && SCARG(&mm, addr) < rp)
410: SCARG(&mm, addr) = rp;
411:
412: return sys_mmap(p, &mm, retval);
413: }
414:
415: int
416: svr4_sys_fchroot(p, v, retval)
417: register struct proc *p;
418: void *v;
419: register_t *retval;
420: {
421: struct svr4_sys_fchroot_args *uap = v;
422: struct filedesc *fdp = p->p_fd;
423: struct vnode *vp;
424: struct file *fp;
425: int error;
426:
427: if ((error = suser(p, 0)) != 0)
428: return error;
429: if ((error = getvnode(fdp, SCARG(uap, fd), &fp)) != 0)
430: return error;
431:
432: vp = (struct vnode *) fp->f_data;
433: vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
434: if (vp->v_type != VDIR)
435: error = ENOTDIR;
436: else
437: error = VOP_ACCESS(vp, VEXEC, p->p_ucred, p);
438: VOP_UNLOCK(vp, 0, p);
439: if (error) {
440: FRELE(fp);
441: return error;
442: }
443: VREF(vp);
444: if (fdp->fd_rdir != NULL)
445: vrele(fdp->fd_rdir);
446: fdp->fd_rdir = vp;
447: FRELE(fp);
448: return 0;
449: }
450:
451: static int
452: svr4_mknod(p, retval, path, mode, dev)
453: struct proc *p;
454: register_t *retval;
455: char *path;
456: svr4_mode_t mode;
457: svr4_dev_t dev;
458: {
459: caddr_t sg = stackgap_init(p->p_emul);
460:
461: SVR4_CHECK_ALT_EXIST(p, &sg, path);
462:
463: if (S_ISFIFO(mode)) {
464: struct sys_mkfifo_args ap;
465: SCARG(&ap, path) = path;
466: SCARG(&ap, mode) = mode;
467: return sys_mkfifo(p, &ap, retval);
468: } else {
469: struct sys_mknod_args ap;
470: SCARG(&ap, path) = path;
471: SCARG(&ap, mode) = mode;
472: SCARG(&ap, dev) = dev;
473: return sys_mknod(p, &ap, retval);
474: }
475: }
476:
477:
478: int
479: svr4_sys_mknod(p, v, retval)
480: register struct proc *p;
481: void *v;
482: register_t *retval;
483: {
484: struct svr4_sys_mknod_args *uap = v;
485: return svr4_mknod(p, retval,
486: SCARG(uap, path), SCARG(uap, mode),
487: svr4_to_bsd_odev_t(SCARG(uap, dev)));
488: }
489:
490:
491: int
492: svr4_sys_xmknod(p, v, retval)
493: register struct proc *p;
494: void *v;
495: register_t *retval;
496: {
497: struct svr4_sys_xmknod_args *uap = v;
498: return svr4_mknod(p, retval,
499: SCARG(uap, path), SCARG(uap, mode),
500: svr4_to_bsd_dev_t(SCARG(uap, dev)));
501: }
502:
503:
504: int
505: svr4_sys_vhangup(p, v, retval)
506: struct proc *p;
507: void *v;
508: register_t *retval;
509: {
510: return 0;
511: }
512:
513:
514: int
515: svr4_sys_sysconfig(p, v, retval)
516: register struct proc *p;
517: void *v;
518: register_t *retval;
519: {
520: struct svr4_sys_sysconfig_args *uap = v;
521: extern int maxfiles;
522:
523: switch (SCARG(uap, name)) {
524: case SVR4_CONFIG_UNUSED:
525: *retval = 0;
526: break;
527: case SVR4_CONFIG_NGROUPS:
528: *retval = NGROUPS_MAX;
529: break;
530: case SVR4_CONFIG_CHILD_MAX:
531: *retval = maxproc;
532: break;
533: case SVR4_CONFIG_OPEN_FILES:
534: *retval = maxfiles;
535: break;
536: case SVR4_CONFIG_POSIX_VER:
537: *retval = 198808;
538: break;
539: case SVR4_CONFIG_PAGESIZE:
540: *retval = NBPG;
541: break;
542: case SVR4_CONFIG_CLK_TCK:
543: *retval = 60; /* should this be `hz', ie. 100? */
544: break;
545: case SVR4_CONFIG_XOPEN_VER:
546: *retval = 2; /* XXX: What should that be? */
547: break;
548: case SVR4_CONFIG_PROF_TCK:
549: *retval = 60; /* XXX: What should that be? */
550: break;
551: case SVR4_CONFIG_NPROC_CONF:
552: *retval = 1; /* Only one processor for now */
553: break;
554: case SVR4_CONFIG_NPROC_ONLN:
555: *retval = 1; /* And it better be online */
556: break;
557: case SVR4_CONFIG_AIO_LISTIO_MAX:
558: case SVR4_CONFIG_AIO_MAX:
559: case SVR4_CONFIG_AIO_PRIO_DELTA_MAX:
560: *retval = 0; /* No aio support */
561: break;
562: case SVR4_CONFIG_DELAYTIMER_MAX:
563: *retval = 0; /* No delaytimer support */
564: break;
565: #ifdef SYSVMSG
566: case SVR4_CONFIG_MQ_OPEN_MAX:
567: *retval = msginfo.msgmni;
568: break;
569: #endif
570: case SVR4_CONFIG_MQ_PRIO_MAX:
571: *retval = 0; /* XXX: Don't know */
572: break;
573: case SVR4_CONFIG_RTSIG_MAX:
574: *retval = 0;
575: break;
576: #ifdef SYSVSEM
577: case SVR4_CONFIG_SEM_NSEMS_MAX:
578: *retval = seminfo.semmni;
579: break;
580: case SVR4_CONFIG_SEM_VALUE_MAX:
581: *retval = seminfo.semvmx;
582: break;
583: #endif
584: case SVR4_CONFIG_SIGQUEUE_MAX:
585: *retval = 0; /* XXX: Don't know */
586: break;
587: case SVR4_CONFIG_SIGRT_MIN:
588: case SVR4_CONFIG_SIGRT_MAX:
589: *retval = 0; /* No real time signals */
590: break;
591: case SVR4_CONFIG_TIMER_MAX:
592: *retval = 3; /* XXX: real, virtual, profiling */
593: break;
594: case SVR4_CONFIG_PHYS_PAGES:
595: *retval = uvmexp.npages;
596: break;
597: case SVR4_CONFIG_AVPHYS_PAGES:
598: *retval = uvmexp.active; /* XXX: active instead of avg */
599: break;
600: default:
601: return EINVAL;
602: }
603: return 0;
604: }
605:
606: #define SVR4_RLIMIT_NOFILE 5 /* Other RLIMIT_* are the same */
607: #define SVR4_RLIMIT_VMEM 6 /* Other RLIMIT_* are the same */
608: #define SVR4_RLIM_NLIMITS 7
609:
610: int
611: svr4_sys_getrlimit(p, v, retval)
612: register struct proc *p;
613: void *v;
614: register_t *retval;
615: {
616: struct svr4_sys_getrlimit_args *uap = v;
617: struct compat_43_sys_getrlimit_args ap;
618:
619: if (SCARG(uap, which) >= SVR4_RLIM_NLIMITS)
620: return EINVAL;
621:
622: if (SCARG(uap, which) == SVR4_RLIMIT_NOFILE)
623: SCARG(uap, which) = RLIMIT_NOFILE;
624: if (SCARG(uap, which) == SVR4_RLIMIT_VMEM)
625: SCARG(uap, which) = RLIMIT_RSS;
626:
627: SCARG(&ap, which) = SCARG(uap, which);
628: SCARG(&ap, rlp) = SCARG(uap, rlp);
629:
630: return compat_43_sys_getrlimit(p, &ap, retval);
631: }
632:
633: int
634: svr4_sys_setrlimit(p, v, retval)
635: register struct proc *p;
636: void *v;
637: register_t *retval;
638: {
639: struct svr4_sys_setrlimit_args *uap = v;
640: struct compat_43_sys_setrlimit_args ap;
641:
642: if (SCARG(uap, which) >= SVR4_RLIM_NLIMITS)
643: return EINVAL;
644:
645: if (SCARG(uap, which) == SVR4_RLIMIT_NOFILE)
646: SCARG(uap, which) = RLIMIT_NOFILE;
647: if (SCARG(uap, which) == SVR4_RLIMIT_VMEM)
648: SCARG(uap, which) = RLIMIT_RSS;
649:
650: SCARG(&ap, which) = SCARG(uap, which);
651: SCARG(&ap, rlp) = SCARG(uap, rlp);
652:
653: return compat_43_sys_setrlimit(p, uap, retval);
654: }
655:
656:
657: /* ARGSUSED */
658: int
659: svr4_sys_break(p, v, retval)
660: register struct proc *p;
661: void *v;
662: register_t *retval;
663: {
664: struct svr4_sys_break_args *uap = v;
665: register struct vmspace *vm = p->p_vmspace;
666: vaddr_t new, old;
667: int error;
668: register int diff;
669:
670: old = (vaddr_t) vm->vm_daddr;
671: new = round_page((vaddr_t)SCARG(uap, nsize));
672: diff = new - old;
673:
674: DPRINTF(("break(1): old %lx new %lx diff %x\n", old, new, diff));
675:
676: if (diff > p->p_rlimit[RLIMIT_DATA].rlim_cur)
677: return ENOMEM;
678:
679: old = round_page(old + ctob(vm->vm_dsize));
680: DPRINTF(("break(2): dsize = %x ctob %x\n",
681: vm->vm_dsize, ctob(vm->vm_dsize)));
682:
683: diff = new - old;
684: DPRINTF(("break(3): old %lx new %lx diff %x\n", old, new, diff));
685:
686: if (diff > 0) {
687: error = uvm_map(&vm->vm_map, &old, diff, NULL, UVM_UNKNOWN_OFFSET,
688: 0, UVM_MAPFLAG(UVM_PROT_ALL, UVM_PROT_ALL, UVM_INH_COPY,
689: UVM_ADV_NORMAL,
690: UVM_FLAG_AMAPPAD|UVM_FLAG_FIXED|
691: UVM_FLAG_OVERLAY|UVM_FLAG_COPYONW));
692: if (error) {
693: uprintf("sbrk: grow failed, return = %d\n", error);
694: return error;
695: }
696: vm->vm_dsize += btoc(diff);
697: } else if (diff < 0) {
698: diff = -diff;
699: uvm_deallocate(&vm->vm_map, new, diff);
700: vm->vm_dsize -= btoc(diff);
701: }
702: return 0;
703: }
704:
705: static __inline clock_t
706: timeval_to_clock_t(tv)
707: struct timeval *tv;
708: {
709: return tv->tv_sec * hz + tv->tv_usec / (1000000 / hz);
710: }
711:
712: int
713: svr4_sys_times(p, v, retval)
714: register struct proc *p;
715: void *v;
716: register_t *retval;
717: {
718: struct svr4_sys_times_args *uap = v;
719: int error;
720: struct tms tms;
721: struct timeval t;
722: struct rusage *ru;
723: struct rusage r;
724: struct sys_getrusage_args ga;
725:
726: caddr_t sg = stackgap_init(p->p_emul);
727: ru = stackgap_alloc(&sg, sizeof(struct rusage));
728:
729: SCARG(&ga, who) = RUSAGE_SELF;
730: SCARG(&ga, rusage) = ru;
731:
732: error = sys_getrusage(p, &ga, retval);
733: if (error)
734: return error;
735:
736: if ((error = copyin(ru, &r, sizeof r)) != 0)
737: return error;
738:
739: tms.tms_utime = timeval_to_clock_t(&r.ru_utime);
740: tms.tms_stime = timeval_to_clock_t(&r.ru_stime);
741:
742: SCARG(&ga, who) = RUSAGE_CHILDREN;
743: error = sys_getrusage(p, &ga, retval);
744: if (error)
745: return error;
746:
747: if ((error = copyin(ru, &r, sizeof r)) != 0)
748: return error;
749:
750: tms.tms_cutime = timeval_to_clock_t(&r.ru_utime);
751: tms.tms_cstime = timeval_to_clock_t(&r.ru_stime);
752:
753: microtime(&t);
754: *retval = timeval_to_clock_t(&t);
755:
756: return copyout(&tms, SCARG(uap, tp), sizeof(tms));
757: }
758:
759:
760: int
761: svr4_sys_ulimit(p, v, retval)
762: register struct proc *p;
763: void *v;
764: register_t *retval;
765: {
766: struct svr4_sys_ulimit_args *uap = v;
767:
768: switch (SCARG(uap, cmd)) {
769: case SVR4_GFILLIM:
770: *retval = p->p_rlimit[RLIMIT_FSIZE].rlim_cur / 512;
771: return 0;
772:
773: case SVR4_SFILLIM:
774: {
775: int error;
776: struct sys_setrlimit_args srl;
777: struct rlimit krl;
778: caddr_t sg = stackgap_init(p->p_emul);
779: struct rlimit *url = (struct rlimit *)
780: stackgap_alloc(&sg, sizeof *url);
781:
782: krl.rlim_cur = SCARG(uap, newlimit) * 512;
783: krl.rlim_max = p->p_rlimit[RLIMIT_FSIZE].rlim_max;
784:
785: error = copyout(&krl, url, sizeof(*url));
786: if (error)
787: return error;
788:
789: SCARG(&srl, which) = RLIMIT_FSIZE;
790: SCARG(&srl, rlp) = url;
791:
792: error = sys_setrlimit(p, &srl, retval);
793: if (error)
794: return error;
795:
796: *retval = p->p_rlimit[RLIMIT_FSIZE].rlim_cur;
797: return 0;
798: }
799:
800: case SVR4_GMEMLIM:
801: {
802: struct vmspace *vm = p->p_vmspace;
803: *retval = (long) vm->vm_daddr +
804: p->p_rlimit[RLIMIT_DATA].rlim_cur;
805: return 0;
806: }
807:
808: case SVR4_GDESLIM:
809: *retval = p->p_rlimit[RLIMIT_NOFILE].rlim_cur;
810: return 0;
811:
812: default:
813: return EINVAL;
814: }
815: }
816:
817:
818: static struct proc *
819: svr4_pfind(pid)
820: pid_t pid;
821: {
822: struct proc *p;
823:
824: /* look in the live processes */
825: if ((p = pfind(pid)) != NULL)
826: return p;
827:
828: /* look in the zombies */
829: LIST_FOREACH(p, &zombproc, p_list)
830: if (p->p_pid == pid)
831: return p;
832:
833: return NULL;
834: }
835:
836:
837: int
838: svr4_sys_pgrpsys(p, v, retval)
839: register struct proc *p;
840: void *v;
841: register_t *retval;
842: {
843: struct svr4_sys_pgrpsys_args *uap = v;
844: int error;
845:
846: switch (SCARG(uap, cmd)) {
847: case 0: /* getpgrp() */
848: *retval = p->p_pgrp->pg_id;
849: return 0;
850:
851: case 1: /* setpgrp() */
852: {
853: struct sys_setpgid_args sa;
854:
855: SCARG(&sa, pid) = 0;
856: SCARG(&sa, pgid) = 0;
857: if ((error = sys_setpgid(p, &sa, retval)) != 0)
858: return error;
859: *retval = p->p_pgrp->pg_id;
860: return 0;
861: }
862:
863: case 2: /* getsid(pid) */
864: if (SCARG(uap, pid) != 0 &&
865: (p = svr4_pfind(SCARG(uap, pid))) == NULL)
866: return ESRCH;
867: /*
868: * we return the pid of the session leader for this
869: * process
870: */
871: *retval = (register_t) p->p_session->s_leader->p_pid;
872: return 0;
873:
874: case 3: /* setsid() */
875: return sys_setsid(p, NULL, retval);
876:
877: case 4: /* getpgid(pid) */
878:
879: if (SCARG(uap, pid) != 0 &&
880: (p = svr4_pfind(SCARG(uap, pid))) == NULL)
881: return ESRCH;
882:
883: *retval = (int) p->p_pgrp->pg_id;
884: return 0;
885:
886: case 5: /* setpgid(pid, pgid); */
887: {
888: struct sys_setpgid_args sa;
889:
890: SCARG(&sa, pid) = SCARG(uap, pid);
891: SCARG(&sa, pgid) = SCARG(uap, pgid);
892: return sys_setpgid(p, &sa, retval);
893: }
894:
895: default:
896: return EINVAL;
897: }
898: }
899:
900: struct svr4_hrtcntl_args {
901: syscallarg(int) cmd;
902: syscallarg(int) fun;
903: syscallarg(int) clk;
904: syscallarg(svr4_hrt_interval_t *) iv;
905: syscallarg(svr4_hrt_time_t *) ti;
906: };
907:
908: static int
909: svr4_hrtcntl(p, uap, retval)
910: register struct proc *p;
911: register struct svr4_hrtcntl_args *uap;
912: register_t *retval;
913: {
914: switch (SCARG(uap, fun)) {
915: case SVR4_HRT_CNTL_RES:
916: DPRINTF(("htrcntl(RES)\n"));
917: *retval = SVR4_HRT_USEC;
918: return 0;
919:
920: case SVR4_HRT_CNTL_TOFD:
921: DPRINTF(("htrcntl(TOFD)\n"));
922: {
923: struct timeval tv;
924: svr4_hrt_time_t t;
925: if (SCARG(uap, clk) != SVR4_HRT_CLK_STD) {
926: DPRINTF(("clk == %d\n", SCARG(uap, clk)));
927: return EINVAL;
928: }
929: if (SCARG(uap, ti) == NULL) {
930: DPRINTF(("ti NULL\n"));
931: return EINVAL;
932: }
933: microtime(&tv);
934: t.h_sec = tv.tv_sec;
935: t.h_rem = tv.tv_usec;
936: t.h_res = SVR4_HRT_USEC;
937: return copyout(&t, SCARG(uap, ti), sizeof(t));
938: }
939:
940: case SVR4_HRT_CNTL_START:
941: DPRINTF(("htrcntl(START)\n"));
942: return ENOSYS;
943:
944: case SVR4_HRT_CNTL_GET:
945: DPRINTF(("htrcntl(GET)\n"));
946: return ENOSYS;
947: default:
948: DPRINTF(("Bad htrcntl command %d\n", SCARG(uap, fun)));
949: return ENOSYS;
950: }
951: }
952:
953: int
954: svr4_sys_hrtsys(p, v, retval)
955: register struct proc *p;
956: void *v;
957: register_t *retval;
958: {
959: struct svr4_sys_hrtsys_args *uap = v;
960:
961: switch (SCARG(uap, cmd)) {
962: case SVR4_HRT_CNTL:
963: return svr4_hrtcntl(p, (struct svr4_hrtcntl_args *) uap,
964: retval);
965:
966: case SVR4_HRT_ALRM:
967: DPRINTF(("hrtalarm\n"));
968: return ENOSYS;
969:
970: case SVR4_HRT_SLP:
971: DPRINTF(("hrtsleep\n"));
972: return ENOSYS;
973:
974: case SVR4_HRT_CAN:
975: DPRINTF(("hrtcancel\n"));
976: return ENOSYS;
977:
978: default:
979: DPRINTF(("Bad hrtsys command %d\n", SCARG(uap, cmd)));
980: return EINVAL;
981: }
982: }
983:
984: static int
985: svr4_setinfo(p, st, s)
986: struct proc *p;
987: int st;
988: svr4_siginfo_t *s;
989: {
990: svr4_siginfo_t i;
991:
992: bzero(&i, sizeof(i));
993:
994: i.svr4_si_signo = SVR4_SIGCHLD;
995: i.svr4_si_errno = 0; /* XXX? */
996:
997: if (p) {
998: i.svr4_si_pid = p->p_pid;
999: if (p->p_stat == SZOMB) {
1000: i.svr4_si_stime = p->p_ru->ru_stime.tv_sec;
1001: i.svr4_si_utime = p->p_ru->ru_utime.tv_sec;
1002: } else {
1003: i.svr4_si_stime = p->p_stats->p_ru.ru_stime.tv_sec;
1004: i.svr4_si_utime = p->p_stats->p_ru.ru_utime.tv_sec;
1005: }
1006: }
1007:
1008: if (WIFEXITED(st)) {
1009: i.svr4_si_status = WEXITSTATUS(st);
1010: i.svr4_si_code = SVR4_CLD_EXITED;
1011: }
1012: else if (WIFSTOPPED(st)) {
1013: i.svr4_si_status = bsd_to_svr4_sig[WSTOPSIG(st)];
1014:
1015: if (i.svr4_si_status == SVR4_SIGCONT)
1016: i.svr4_si_code = SVR4_CLD_CONTINUED;
1017: else
1018: i.svr4_si_code = SVR4_CLD_STOPPED;
1019: } else {
1020: i.svr4_si_status = bsd_to_svr4_sig[WTERMSIG(st)];
1021:
1022: if (WCOREDUMP(st))
1023: i.svr4_si_code = SVR4_CLD_DUMPED;
1024: else
1025: i.svr4_si_code = SVR4_CLD_KILLED;
1026: }
1027:
1028: DPRINTF(("siginfo [pid %ld signo %d code %d errno %d status %d]\n",
1029: i.svr4_si_pid, i.svr4_si_signo, i.svr4_si_code,
1030: i.svr4_si_errno, i.svr4_si_status));
1031:
1032: return copyout(&i, s, sizeof(i));
1033: }
1034:
1035:
1036: int
1037: svr4_sys_waitsys(q, v, retval)
1038: struct proc *q;
1039: void *v;
1040: register_t *retval;
1041: {
1042: struct svr4_sys_waitsys_args *uap = v;
1043: int nfound;
1044: int error;
1045: struct proc *p, *t;
1046:
1047: switch (SCARG(uap, grp)) {
1048: case SVR4_P_PID:
1049: break;
1050:
1051: case SVR4_P_PGID:
1052: SCARG(uap, id) = -q->p_pgid;
1053: break;
1054:
1055: case SVR4_P_ALL:
1056: SCARG(uap, id) = WAIT_ANY;
1057: break;
1058:
1059: default:
1060: return (EINVAL);
1061: }
1062:
1063: DPRINTF(("waitsys(%d, %d, %p, %x)\n", SCARG(uap, grp), SCARG(uap, id),
1064: SCARG(uap, info), SCARG(uap, options)));
1065:
1066: loop:
1067: nfound = 0;
1068: LIST_FOREACH(p, &q->p_children, p_sibling) {
1069: if (SCARG(uap, id) != WAIT_ANY &&
1070: p->p_pid != SCARG(uap, id) &&
1071: p->p_pgid != -SCARG(uap, id)) {
1072: DPRINTF(("pid %d pgid %d != %d\n", p->p_pid,
1073: p->p_pgid, SCARG(uap, id)));
1074: continue;
1075: }
1076: nfound++;
1077: if (p->p_stat == SZOMB &&
1078: ((SCARG(uap, options) & (SVR4_WEXITED|SVR4_WTRAPPED)))) {
1079: *retval = 0;
1080: DPRINTF(("found %d\n", p->p_pid));
1081: error = svr4_setinfo(p, p->p_xstat, SCARG(uap, info));
1082: if (error)
1083: return (error);
1084:
1085: if ((SCARG(uap, options) & SVR4_WNOWAIT)) {
1086: DPRINTF(("Don't wait\n"));
1087: return (0);
1088: }
1089:
1090: /*
1091: * If we got the child via a ptrace 'attach',
1092: * we need to give it back to the old parent.
1093: */
1094: if (p->p_oppid && (t = pfind(p->p_oppid))) {
1095: p->p_oppid = 0;
1096: proc_reparent(p, t);
1097: psignal(t, SIGCHLD);
1098: wakeup((caddr_t)t);
1099: return (0);
1100: }
1101:
1102: scheduler_wait_hook(q, p);
1103: p->p_xstat = 0;
1104: ruadd(&q->p_stats->p_cru, p->p_ru);
1105:
1106: proc_zap(p);
1107: return (0);
1108: }
1109: if (p->p_stat == SSTOP && (p->p_flag & P_WAITED) == 0 &&
1110: (p->p_flag & P_TRACED ||
1111: (SCARG(uap, options) & (SVR4_WSTOPPED|SVR4_WCONTINUED)))) {
1112: DPRINTF(("jobcontrol %d\n", p->p_pid));
1113: if (((SCARG(uap, options) & SVR4_WNOWAIT)) == 0)
1114: atomic_setbits_int(&p->p_flag, P_WAITED);
1115: *retval = 0;
1116: return (svr4_setinfo(p, W_STOPCODE(p->p_xstat),
1117: SCARG(uap, info)));
1118: }
1119: }
1120:
1121: if (nfound == 0)
1122: return (ECHILD);
1123:
1124: if (SCARG(uap, options) & SVR4_WNOHANG) {
1125: *retval = 0;
1126: if ((error = svr4_setinfo(NULL, 0, SCARG(uap, info))) != 0)
1127: return (error);
1128: return (0);
1129: }
1130:
1131: if ((error = tsleep((caddr_t)q, PWAIT | PCATCH, "svr4_wait", 0)) != 0)
1132: return (error);
1133: goto loop;
1134: }
1135:
1136: static void
1137: bsd_statfs_to_svr4_statvfs(bfs, sfs)
1138: const struct statfs *bfs;
1139: struct svr4_statvfs *sfs;
1140: {
1141: sfs->f_bsize = bfs->f_iosize; /* XXX */
1142: sfs->f_frsize = bfs->f_bsize;
1143: sfs->f_blocks = bfs->f_blocks;
1144: sfs->f_bfree = bfs->f_bfree;
1145: sfs->f_bavail = bfs->f_bavail;
1146: sfs->f_files = bfs->f_files;
1147: sfs->f_ffree = bfs->f_ffree;
1148: sfs->f_favail = bfs->f_ffree;
1149: sfs->f_fsid = bfs->f_fsid.val[0];
1150: bcopy(bfs->f_fstypename, sfs->f_basetype, sizeof(sfs->f_basetype));
1151: sfs->f_flag = 0;
1152: if (bfs->f_flags & MNT_RDONLY)
1153: sfs->f_flag |= SVR4_ST_RDONLY;
1154: if (bfs->f_flags & MNT_NOSUID)
1155: sfs->f_flag |= SVR4_ST_NOSUID;
1156: sfs->f_namemax = MAXNAMLEN;
1157: bcopy(bfs->f_fstypename, sfs->f_fstr, sizeof(sfs->f_fstr)); /* XXX */
1158: bzero(sfs->f_filler, sizeof(sfs->f_filler));
1159: }
1160:
1161:
1162: static void
1163: bsd_statfs_to_svr4_statvfs64(bfs, sfs)
1164: const struct statfs *bfs;
1165: struct svr4_statvfs64 *sfs;
1166: {
1167: sfs->f_bsize = bfs->f_iosize; /* XXX */
1168: sfs->f_frsize = bfs->f_bsize;
1169: sfs->f_blocks = bfs->f_blocks;
1170: sfs->f_bfree = bfs->f_bfree;
1171: sfs->f_bavail = bfs->f_bavail;
1172: sfs->f_files = bfs->f_files;
1173: sfs->f_ffree = bfs->f_ffree;
1174: sfs->f_favail = bfs->f_ffree;
1175: sfs->f_fsid = bfs->f_fsid.val[0];
1176: bcopy(bfs->f_fstypename, sfs->f_basetype, sizeof(sfs->f_basetype));
1177: sfs->f_flag = 0;
1178: if (bfs->f_flags & MNT_RDONLY)
1179: sfs->f_flag |= SVR4_ST_RDONLY;
1180: if (bfs->f_flags & MNT_NOSUID)
1181: sfs->f_flag |= SVR4_ST_NOSUID;
1182: sfs->f_namemax = MAXNAMLEN;
1183: bcopy(bfs->f_fstypename, sfs->f_fstr, sizeof(sfs->f_fstr)); /* XXX */
1184: bzero(sfs->f_filler, sizeof(sfs->f_filler));
1185: }
1186:
1187:
1188: int
1189: svr4_sys_statvfs(p, v, retval)
1190: register struct proc *p;
1191: void *v;
1192: register_t *retval;
1193: {
1194: struct svr4_sys_statvfs_args *uap = v;
1195: struct sys_statfs_args fs_args;
1196: caddr_t sg = stackgap_init(p->p_emul);
1197: struct statfs *fs = stackgap_alloc(&sg, sizeof(struct statfs));
1198: struct statfs bfs;
1199: struct svr4_statvfs sfs;
1200: int error;
1201:
1202: SVR4_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
1203: SCARG(&fs_args, path) = SCARG(uap, path);
1204: SCARG(&fs_args, buf) = fs;
1205:
1206: if ((error = sys_statfs(p, &fs_args, retval)) != 0)
1207: return error;
1208:
1209: if ((error = copyin(fs, &bfs, sizeof(bfs))) != 0)
1210: return error;
1211:
1212: bsd_statfs_to_svr4_statvfs(&bfs, &sfs);
1213:
1214: return copyout(&sfs, SCARG(uap, fs), sizeof(sfs));
1215: }
1216:
1217:
1218: int
1219: svr4_sys_fstatvfs(p, v, retval)
1220: register struct proc *p;
1221: void *v;
1222: register_t *retval;
1223: {
1224: struct svr4_sys_fstatvfs_args *uap = v;
1225: struct sys_fstatfs_args fs_args;
1226: caddr_t sg = stackgap_init(p->p_emul);
1227: struct statfs *fs = stackgap_alloc(&sg, sizeof(struct statfs));
1228: struct statfs bfs;
1229: struct svr4_statvfs sfs;
1230: int error;
1231:
1232: SCARG(&fs_args, fd) = SCARG(uap, fd);
1233: SCARG(&fs_args, buf) = fs;
1234:
1235: if ((error = sys_fstatfs(p, &fs_args, retval)) != 0)
1236: return error;
1237:
1238: if ((error = copyin(fs, &bfs, sizeof(bfs))) != 0)
1239: return error;
1240:
1241: bsd_statfs_to_svr4_statvfs(&bfs, &sfs);
1242:
1243: return copyout(&sfs, SCARG(uap, fs), sizeof(sfs));
1244: }
1245:
1246:
1247: int
1248: svr4_sys_fstatvfs64(p, v, retval)
1249: register struct proc *p;
1250: void *v;
1251: register_t *retval;
1252: {
1253: struct svr4_sys_fstatvfs64_args *uap = v;
1254: struct sys_fstatfs_args fs_args;
1255: caddr_t sg = stackgap_init(p->p_emul);
1256: struct statfs *fs = stackgap_alloc(&sg, sizeof(struct statfs));
1257: struct statfs bfs;
1258: struct svr4_statvfs64 sfs;
1259: int error;
1260:
1261: SCARG(&fs_args, fd) = SCARG(uap, fd);
1262: SCARG(&fs_args, buf) = fs;
1263:
1264: if ((error = sys_fstatfs(p, &fs_args, retval)) != 0)
1265: return error;
1266:
1267: if ((error = copyin(fs, &bfs, sizeof(bfs))) != 0)
1268: return error;
1269:
1270: bsd_statfs_to_svr4_statvfs64(&bfs, &sfs);
1271:
1272: return copyout(&sfs, SCARG(uap, fs), sizeof(sfs));
1273: }
1274:
1275:
1276: int
1277: svr4_sys_alarm(p, v, retval)
1278: register struct proc *p;
1279: void *v;
1280: register_t *retval;
1281: {
1282: struct svr4_sys_alarm_args *uap = v;
1283: int error;
1284: struct itimerval *ntp, *otp, tp;
1285: struct sys_setitimer_args sa;
1286: caddr_t sg = stackgap_init(p->p_emul);
1287:
1288: ntp = stackgap_alloc(&sg, sizeof(struct itimerval));
1289: otp = stackgap_alloc(&sg, sizeof(struct itimerval));
1290:
1291: timerclear(&tp.it_interval);
1292: tp.it_value.tv_sec = SCARG(uap, sec);
1293: tp.it_value.tv_usec = 0;
1294:
1295: if ((error = copyout(&tp, ntp, sizeof(tp))) != 0)
1296: return error;
1297:
1298: SCARG(&sa, which) = ITIMER_REAL;
1299: SCARG(&sa, itv) = ntp;
1300: SCARG(&sa, oitv) = otp;
1301:
1302: if ((error = sys_setitimer(p, &sa, retval)) != 0)
1303: return error;
1304:
1305: if ((error = copyin(otp, &tp, sizeof(tp))) != 0)
1306: return error;
1307:
1308: if (tp.it_value.tv_usec)
1309: tp.it_value.tv_sec++;
1310:
1311: *retval = (register_t) tp.it_value.tv_sec;
1312:
1313: return 0;
1314: }
1315:
1316:
1317: int
1318: svr4_sys_gettimeofday(p, v, retval)
1319: register struct proc *p;
1320: void *v;
1321: register_t *retval;
1322: {
1323: struct svr4_sys_gettimeofday_args *uap = v;
1324:
1325: if (SCARG(uap, tp)) {
1326: struct timeval atv;
1327:
1328: microtime(&atv);
1329: return copyout(&atv, SCARG(uap, tp), sizeof (atv));
1330: }
1331:
1332: return 0;
1333: }
1334:
1335: int
1336: svr4_sys_facl(p, v, retval)
1337: register struct proc *p;
1338: void *v;
1339: register_t *retval;
1340: {
1341: struct svr4_sys_facl_args *uap = v;
1342:
1343: *retval = 0;
1344:
1345: switch (SCARG(uap, cmd)) {
1346: case SVR4_SYS_SETACL:
1347: /* We don't support acls on any filesystem */
1348: return ENOSYS;
1349:
1350: case SVR4_SYS_GETACL:
1351: return copyout(retval, &SCARG(uap, num),
1352: sizeof(SCARG(uap, num)));
1353:
1354: case SVR4_SYS_GETACLCNT:
1355: return 0;
1356:
1357: default:
1358: return EINVAL;
1359: }
1360: }
1361:
1362: int
1363: svr4_sys_acl(p, v, retval)
1364: register struct proc *p;
1365: void *v;
1366: register_t *retval;
1367: {
1368: return svr4_sys_facl(p, v, retval); /* XXX: for now the same */
1369: }
1370:
1371: int
1372: svr4_sys_auditsys(p, v, retval)
1373: register struct proc *p;
1374: void *v;
1375: register_t *retval;
1376: {
1377: /*
1378: * XXX: Big brother is *not* watching.
1379: */
1380: return 0;
1381: }
1382:
1383: int
1384: svr4_sys_memcntl(p, v, retval)
1385: register struct proc *p;
1386: void *v;
1387: register_t *retval;
1388: {
1389: struct svr4_sys_memcntl_args *uap = v;
1390: struct sys_mprotect_args ap;
1391:
1392: SCARG(&ap, addr) = SCARG(uap, addr);
1393: SCARG(&ap, len) = SCARG(uap, len);
1394: SCARG(&ap, prot) = SCARG(uap, attr);
1395:
1396: /* XXX: no locking, invalidating, or syncing supported */
1397: return sys_mprotect(p, &ap, retval);
1398: }
1399:
1400: int
1401: svr4_sys_nice(p, v, retval)
1402: register struct proc *p;
1403: void *v;
1404: register_t *retval;
1405: {
1406: struct svr4_sys_nice_args *uap = v;
1407: struct sys_setpriority_args ap;
1408: int error;
1409:
1410: SCARG(&ap, which) = PRIO_PROCESS;
1411: SCARG(&ap, who) = 0;
1412: SCARG(&ap, prio) = SCARG(uap, prio);
1413:
1414: if ((error = sys_setpriority(p, &ap, retval)) != 0)
1415: return error;
1416:
1417: if ((error = sys_getpriority(p, &ap, retval)) != 0)
1418: return error;
1419:
1420: return 0;
1421: }
1422:
1423: /* ARGSUSED */
1424: int
1425: svr4_sys_setegid(p, v, retval)
1426: struct proc *p;
1427: void *v;
1428: register_t *retval;
1429: {
1430: struct sys_setegid_args /* {
1431: syscallarg(gid_t) egid;
1432: } */ *uap = v;
1433:
1434: #if defined(COMPAT_LINUX) && defined(i386)
1435: if (SCARG(uap, egid) > 60000) {
1436: /*
1437: * One great fuckup deserves another. The Linux people
1438: * made this their personality system call. But we can't
1439: * tell if a binary is SVR4 or Linux until they do that
1440: * system call, in some cases. So when we get it, and the
1441: * value is out of some magical range, switch to Linux
1442: * emulation and pray.
1443: */
1444: extern struct emul emul_linux_elf;
1445:
1446: p->p_emul = &emul_linux_elf;
1447: p->p_os = OOS_LINUX;
1448: #ifdef KTRACE
1449: if (KTRPOINT(p, KTR_EMUL))
1450: ktremul(p, p->p_emul->e_name);
1451: #endif
1452: return (0);
1453: }
1454: #else
1455: (void)uap;
1456: #endif
1457: return (sys_setegid(p, v, retval));
1458: }
1459:
1460: int
1461: svr4_sys_rdebug(p, v, retval)
1462: struct proc *p;
1463: void *v;
1464: register_t *retval;
1465: {
1466: #ifdef COMPAT_SVR4_NCR
1467: return (ENXIO);
1468: #else
1469: return (p->p_os == OOS_NCR ? ENXIO : sys_nosys(p, v, retval));
1470: #endif
1471: }