svr4_misc.c

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    1 /*      $NetBSD: svr4_misc.c,v 1.144.6.1 2010/03/17 02:59:52 snj Exp $   */
    2 
    3 /*-
    4  * Copyright (c) 1994, 2008 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by Christos Zoulas.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   29  * POSSIBILITY OF SUCH DAMAGE.
   30  */
   31 
   32 /*
   33  * SVR4 compatibility module.
   34  *
   35  * SVR4 system calls that are implemented differently in BSD are
   36  * handled here.
   37  */
   38 
   39 #include <sys/cdefs.h>
   40 __KERNEL_RCSID(0, "$NetBSD: svr4_misc.c,v 1.144.6.1 2010/03/17 02:59:52 snj Exp $");
   41 
   42 #include <sys/param.h>
   43 #include <sys/systm.h>
   44 #include <sys/namei.h>
   45 #include <sys/dirent.h>
   46 #include <sys/proc.h>
   47 #include <sys/file.h>
   48 #include <sys/stat.h>
   49 #include <sys/time.h>
   50 #include <sys/filedesc.h>
   51 #include <sys/ioctl.h>
   52 #include <sys/kernel.h>
   53 #include <sys/malloc.h>
   54 #include <sys/pool.h>
   55 #include <sys/mbuf.h>
   56 #include <sys/mman.h>
   57 #include <sys/mount.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/vfs_syscalls.h>
   67 #include <sys/times.h>
   68 #include <sys/sem.h>
   69 #include <sys/msg.h>
   70 #include <sys/ptrace.h>
   71 #include <sys/signalvar.h>
   72 
   73 #include <netinet/in.h>
   74 #include <sys/syscallargs.h>
   75 
   76 #include <miscfs/specfs/specdev.h>
   77 
   78 #include <compat/svr4/svr4_types.h>
   79 #include <compat/svr4/svr4_signal.h>
   80 #include <compat/svr4/svr4_lwp.h>
   81 #include <compat/svr4/svr4_ucontext.h>
   82 #include <compat/svr4/svr4_syscallargs.h>
   83 #include <compat/svr4/svr4_util.h>
   84 #include <compat/svr4/svr4_time.h>
   85 #include <compat/svr4/svr4_dirent.h>
   86 #include <compat/svr4/svr4_ulimit.h>
   87 #include <compat/svr4/svr4_hrt.h>
   88 #include <compat/svr4/svr4_wait.h>
   89 #include <compat/svr4/svr4_statvfs.h>
   90 #include <compat/svr4/svr4_sysconfig.h>
   91 #include <compat/svr4/svr4_acl.h>
   92 #include <compat/svr4/svr4_mman.h>
   93 
   94 #include <sys/cpu.h>
   95 
   96 #include <uvm/uvm_extern.h>
   97 
   98 static int svr4_to_bsd_mmap_flags(int);
   99 
  100 static inline clock_t timeval_to_clock_t(struct timeval *);
  101 static void svr4_setinfo(int, struct rusage *, int, svr4_siginfo_t *);
  102 
  103 struct svr4_hrtcntl_args;
  104 static int svr4_hrtcntl(struct lwp *, const struct svr4_hrtcntl_args *,
  105     register_t *);
  106 #define svr4_pfind(pid) p_find((pid), PFIND_UNLOCK | PFIND_ZOMBIE)
  107 
  108 static int svr4_mknod(struct lwp *, register_t *, const char *,
  109     svr4_mode_t, svr4_dev_t);
  110 
  111 int
  112 svr4_sys_wait(struct lwp *l, const struct svr4_sys_wait_args *uap, register_t *retval)
  113 {
  114         int error, was_zombie;
  115         int st, sig;
  116         int pid = WAIT_ANY;
  117 
  118         error = do_sys_wait(l, &pid, &st, 0, NULL, &was_zombie);
  119 
  120         retval[0] = pid;
  121         if (pid == 0)
  122                 return error;
  123 
  124         if (WIFSIGNALED(st)) {
  125                 sig = WTERMSIG(st);
  126                 if (sig >= 0 && sig < NSIG)
  127                         st = (st & ~0177) | native_to_svr4_signo[sig];
  128         } else if (WIFSTOPPED(st)) {
  129                 sig = WSTOPSIG(st);
  130                 if (sig >= 0 && sig < NSIG)
  131                         st = (st & ~0xff00) | (native_to_svr4_signo[sig] << 8);
  132         }
  133 
  134         /*
  135          * It looks like wait(2) on svr4/solaris/2.4 returns
  136          * the status in retval[1], and the pid on retval[0].
  137          */
  138         retval[1] = st;
  139 
  140         if (SCARG(uap, status))
  141                 error = copyout(&st, SCARG(uap, status), sizeof(st));
  142 
  143         return error;
  144 }
  145 
  146 
  147 int
  148 svr4_sys_execv(struct lwp *l, const struct svr4_sys_execv_args *uap, register_t *retval)
  149 {
  150         /* {
  151                 syscallarg(char *) path;
  152                 syscallarg(char **) argv;
  153         } */
  154         struct sys_execve_args ap;
  155 
  156         SCARG(&ap, path) = SCARG(uap, path);
  157         SCARG(&ap, argp) = SCARG(uap, argp);
  158         SCARG(&ap, envp) = NULL;
  159 
  160         return sys_execve(l, &ap, retval);
  161 }
  162 
  163 
  164 int
  165 svr4_sys_execve(struct lwp *l, const struct svr4_sys_execve_args *uap, register_t *retval)
  166 {
  167         /* {
  168                 syscallarg(const char *) path;
  169                 syscallarg(char **) argv;
  170                 syscallarg(char **) envp;
  171         } */
  172         struct sys_execve_args ap;
  173 
  174         SCARG(&ap, path) = SCARG(uap, path);
  175         SCARG(&ap, argp) = SCARG(uap, argp);
  176         SCARG(&ap, envp) = SCARG(uap, envp);
  177 
  178         return sys_execve(l, &ap, retval);
  179 }
  180 
  181 
  182 int
  183 svr4_sys_time(struct lwp *l, const struct svr4_sys_time_args *uap, register_t *retval)
  184 {
  185         int error = 0;
  186         struct timeval tv;
  187 
  188         microtime(&tv);
  189         if (SCARG(uap, t))
  190                 error = copyout(&tv.tv_sec, SCARG(uap, t),
  191                                 sizeof(*(SCARG(uap, t))));
  192         *retval = (int) tv.tv_sec;
  193 
  194         return error;
  195 }
  196 
  197 
  198 /*
  199  * Read SVR4-style directory entries.  We suck them into kernel space so
  200  * that they can be massaged before being copied out to user code.  Like
  201  * SunOS, we squish out `empty' entries.
  202  *
  203  * This is quite ugly, but what do you expect from compatibility code?
  204  */
  205 int
  206 svr4_sys_getdents64(struct lwp *l, const struct svr4_sys_getdents64_args *uap, register_t *retval)
  207 {
  208         struct dirent *bdp;
  209         struct vnode *vp;
  210         char *inp, *tbuf;       /* BSD-format */
  211         int len, reclen;        /* BSD-format */
  212         char *outp;             /* SVR4-format */
  213         int resid, svr4_reclen; /* SVR4-format */
  214         struct file *fp;
  215         struct uio auio;
  216         struct iovec aiov;
  217         struct svr4_dirent64 idb;
  218         off_t off;              /* true file offset */
  219         int buflen, error, eofflag;
  220         off_t *cookiebuf = NULL, *cookie;
  221         int ncookies;
  222 
  223         /* fd_getvnode() will use the descriptor for us */
  224         if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0)
  225                 return (error);
  226 
  227         if ((fp->f_flag & FREAD) == 0) {
  228                 error = EBADF;
  229                 goto out1;
  230         }
  231 
  232         vp = (struct vnode *)fp->f_data;
  233         if (vp->v_type != VDIR) {
  234                 error = EINVAL;
  235                 goto out1;
  236         }
  237 
  238         buflen = min(MAXBSIZE, SCARG(uap, nbytes));
  239         tbuf = malloc(buflen, M_TEMP, M_WAITOK);
  240         vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
  241         off = fp->f_offset;
  242 again:
  243         aiov.iov_base = tbuf;
  244         aiov.iov_len = buflen;
  245         auio.uio_iov = &aiov;
  246         auio.uio_iovcnt = 1;
  247         auio.uio_rw = UIO_READ;
  248         auio.uio_resid = buflen;
  249         auio.uio_offset = off;
  250         UIO_SETUP_SYSSPACE(&auio);
  251         /*
  252          * First we read into the malloc'ed buffer, then
  253          * we massage it into user space, one record at a time.
  254          */
  255         error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &cookiebuf,
  256             &ncookies);
  257         if (error)
  258                 goto out;
  259 
  260         inp = tbuf;
  261         outp = (char *) SCARG(uap, dp);
  262         resid = SCARG(uap, nbytes);
  263         if ((len = buflen - auio.uio_resid) == 0)
  264                 goto eof;
  265 
  266         for (cookie = cookiebuf; len > 0; len -= reclen) {
  267                 bdp = (struct dirent *)inp;
  268                 reclen = bdp->d_reclen;
  269                 if (reclen & 3)
  270                         panic("svr4_getdents64: bad reclen");
  271                 if (bdp->d_fileno == 0) {
  272                         inp += reclen;  /* it is a hole; squish it out */
  273                         if (cookie)
  274                                 off = *cookie++;
  275                         else
  276                                 off += reclen;
  277                         continue;
  278                 }
  279                 svr4_reclen = SVR4_RECLEN(&idb, bdp->d_namlen);
  280                 if (reclen > len || resid < svr4_reclen) {
  281                         /* entry too big for buffer, so just stop */
  282                         outp++;
  283                         break;
  284                 }
  285                 if (cookie)
  286                         off = *cookie++; /* each entry points to the next */
  287                 else
  288                         off += reclen;
  289                 /*
  290                  * Massage in place to make a SVR4-shaped dirent (otherwise
  291                  * we have to worry about touching user memory outside of
  292                  * the copyout() call).
  293                  */
  294                 idb.d_ino = (svr4_ino64_t)bdp->d_fileno;
  295                 idb.d_off = (svr4_off64_t)off;
  296                 idb.d_reclen = (u_short)svr4_reclen;
  297                 strlcpy(idb.d_name, bdp->d_name, sizeof(idb.d_name));
  298                 if ((error = copyout((void *)&idb, outp, svr4_reclen)))
  299                         goto out;
  300                 /* advance past this real entry */
  301                 inp += reclen;
  302                 /* advance output past SVR4-shaped entry */
  303                 outp += svr4_reclen;
  304                 resid -= svr4_reclen;
  305         }
  306 
  307         /* if we squished out the whole block, try again */
  308         if (outp == (char *) SCARG(uap, dp)) {
  309                 if (cookiebuf)
  310                         free(cookiebuf, M_TEMP);
  311                 cookiebuf = NULL;
  312                 goto again;
  313         }
  314         fp->f_offset = off;     /* update the vnode offset */
  315 
  316 eof:
  317         *retval = SCARG(uap, nbytes) - resid;
  318 out:
  319         VOP_UNLOCK(vp, 0);
  320         if (cookiebuf)
  321                 free(cookiebuf, M_TEMP);
  322         free(tbuf, M_TEMP);
  323  out1:
  324         fd_putfile(SCARG(uap, fd));
  325         return error;
  326 }
  327 
  328 
  329 int
  330 svr4_sys_getdents(struct lwp *l, const struct svr4_sys_getdents_args *uap, register_t *retval)
  331 {
  332         struct dirent *bdp;
  333         struct vnode *vp;
  334         char *inp, *tbuf;       /* BSD-format */
  335         int len, reclen;        /* BSD-format */
  336         char *outp;             /* SVR4-format */
  337         int resid, svr4_reclen; /* SVR4-format */
  338         struct file *fp;
  339         struct uio auio;
  340         struct iovec aiov;
  341         struct svr4_dirent idb;
  342         off_t off;              /* true file offset */
  343         int buflen, error, eofflag;
  344         off_t *cookiebuf = NULL, *cookie;
  345         int ncookies;
  346 
  347         /* fd_getvnode() will use the descriptor for us */
  348         if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0)
  349                 return (error);
  350 
  351         if ((fp->f_flag & FREAD) == 0) {
  352                 error = EBADF;
  353                 goto out1;
  354         }
  355 
  356         vp = (struct vnode *)fp->f_data;
  357         if (vp->v_type != VDIR) {
  358                 error = EINVAL;
  359                 goto out1;
  360         }
  361 
  362         buflen = min(MAXBSIZE, SCARG(uap, nbytes));
  363         tbuf = malloc(buflen, M_TEMP, M_WAITOK);
  364         vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
  365         off = fp->f_offset;
  366 again:
  367         aiov.iov_base = tbuf;
  368         aiov.iov_len = buflen;
  369         auio.uio_iov = &aiov;
  370         auio.uio_iovcnt = 1;
  371         auio.uio_rw = UIO_READ;
  372         auio.uio_resid = buflen;
  373         auio.uio_offset = off;
  374         UIO_SETUP_SYSSPACE(&auio);
  375         /*
  376          * First we read into the malloc'ed buffer, then
  377          * we massage it into user space, one record at a time.
  378          */
  379         error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &cookiebuf,
  380             &ncookies);
  381         if (error)
  382                 goto out;
  383 
  384         inp = tbuf;
  385         outp = SCARG(uap, buf);
  386         resid = SCARG(uap, nbytes);
  387         if ((len = buflen - auio.uio_resid) == 0)
  388                 goto eof;
  389 
  390         for (cookie = cookiebuf; len > 0; len -= reclen) {
  391                 bdp = (struct dirent *)inp;
  392                 reclen = bdp->d_reclen;
  393                 if (reclen & 3)
  394                         panic("svr4_getdents: bad reclen");
  395                 if (cookie)
  396                         off = *cookie++; /* each entry points to the next */
  397                 else
  398                         off += reclen;
  399                 if ((off >> 32) != 0) {
  400                         compat_offseterr(vp, "svr4_getdents");
  401                         error = EINVAL;
  402                         goto out;
  403                 }
  404                 if (bdp->d_fileno == 0) {
  405                         inp += reclen;  /* it is a hole; squish it out */
  406                         continue;
  407                 }
  408                 svr4_reclen = SVR4_RECLEN(&idb, bdp->d_namlen);
  409                 if (reclen > len || resid < svr4_reclen) {
  410                         /* entry too big for buffer, so just stop */
  411                         outp++;
  412                         break;
  413                 }
  414                 /*
  415                  * Massage in place to make a SVR4-shaped dirent (otherwise
  416                  * we have to worry about touching user memory outside of
  417                  * the copyout() call).
  418                  */
  419                 idb.d_ino = (svr4_ino_t)bdp->d_fileno;
  420                 idb.d_off = (svr4_off_t)off;
  421                 idb.d_reclen = (u_short)svr4_reclen;
  422                 strlcpy(idb.d_name, bdp->d_name, sizeof(idb.d_name));
  423                 if ((error = copyout((void *)&idb, outp, svr4_reclen)))
  424                         goto out;
  425                 /* advance past this real entry */
  426                 inp += reclen;
  427                 /* advance output past SVR4-shaped entry */
  428                 outp += svr4_reclen;
  429                 resid -= svr4_reclen;
  430         }
  431 
  432         /* if we squished out the whole block, try again */
  433         if (outp == SCARG(uap, buf)) {
  434                 if (cookiebuf)
  435                         free(cookiebuf, M_TEMP);
  436                 cookiebuf = NULL;
  437                 goto again;
  438         }
  439         fp->f_offset = off;     /* update the vnode offset */
  440 
  441 eof:
  442         *retval = SCARG(uap, nbytes) - resid;
  443 out:
  444         VOP_UNLOCK(vp, 0);
  445         if (cookiebuf)
  446                 free(cookiebuf, M_TEMP);
  447         free(tbuf, M_TEMP);
  448  out1:
  449         fd_putfile(SCARG(uap, fd));
  450         return error;
  451 }
  452 
  453 
  454 static int
  455 svr4_to_bsd_mmap_flags(int f)
  456 {
  457         int type = f & SVR4_MAP_TYPE;
  458         int nf;
  459 
  460         if (type != MAP_PRIVATE && type != MAP_SHARED)
  461                 return -1;
  462 
  463         nf = f & SVR4_MAP_COPYFLAGS;
  464         if (f & SVR4_MAP_ANON)
  465                 nf |= MAP_ANON;
  466 
  467         return nf;
  468 }
  469 
  470 
  471 int
  472 svr4_sys_mmap(struct lwp *l, const struct svr4_sys_mmap_args *uap, register_t *retval)
  473 {
  474         struct sys_mmap_args     mm;
  475         /*
  476          * Verify the arguments.
  477          */
  478         if (SCARG(uap, prot) & ~(PROT_READ | PROT_WRITE | PROT_EXEC))
  479                 return EINVAL;  /* XXX still needed? */
  480 
  481         if (SCARG(uap, len) == 0)
  482                 return EINVAL;
  483 
  484         if ((SCARG(&mm, flags) = svr4_to_bsd_mmap_flags(SCARG(uap, flags))) == -1)
  485                 return EINVAL;
  486 
  487         SCARG(&mm, prot) = SCARG(uap, prot);
  488         SCARG(&mm, len) = SCARG(uap, len);
  489         SCARG(&mm, fd) = SCARG(uap, fd);
  490         SCARG(&mm, addr) = SCARG(uap, addr);
  491         SCARG(&mm, pos) = SCARG(uap, pos);
  492 
  493         return sys_mmap(l, &mm, retval);
  494 }
  495 
  496 
  497 int
  498 svr4_sys_mmap64(struct lwp *l, const struct svr4_sys_mmap64_args *uap, register_t *retval)
  499 {
  500         struct sys_mmap_args     mm;
  501         /*
  502          * Verify the arguments.
  503          */
  504         if (SCARG(uap, prot) & ~(PROT_READ | PROT_WRITE | PROT_EXEC))
  505                 return EINVAL;  /* XXX still needed? */
  506 
  507         if (SCARG(uap, len) == 0)
  508                 return EINVAL;
  509 
  510         if ((SCARG(&mm, flags) = svr4_to_bsd_mmap_flags(SCARG(uap, flags))) == -1)
  511                 return EINVAL;
  512 
  513         SCARG(&mm, prot) = SCARG(uap, prot);
  514         SCARG(&mm, len) = SCARG(uap, len);
  515         SCARG(&mm, fd) = SCARG(uap, fd);
  516         SCARG(&mm, addr) = SCARG(uap, addr);
  517         SCARG(&mm, pos) = SCARG(uap, pos);
  518 
  519         return sys_mmap(l, &mm, retval);
  520 }
  521 
  522 
  523 static int
  524 svr4_mknod(struct lwp *l, register_t *retval, const char *path, svr4_mode_t mode, svr4_dev_t dev)
  525 {
  526         if (S_ISFIFO(mode)) {
  527                 struct sys_mkfifo_args ap;
  528                 SCARG(&ap, path) = path;
  529                 SCARG(&ap, mode) = mode;
  530                 return sys_mkfifo(l, &ap, retval);
  531         } else {
  532                 struct sys_mknod_args ap;
  533                 SCARG(&ap, path) = path;
  534                 SCARG(&ap, mode) = mode;
  535                 SCARG(&ap, dev) = dev;
  536                 return sys_mknod(l, &ap, retval);
  537         }
  538 }
  539 
  540 
  541 int
  542 svr4_sys_mknod(struct lwp *l, const struct svr4_sys_mknod_args *uap, register_t *retval)
  543 {
  544         return svr4_mknod(l, retval,
  545                           SCARG(uap, path), SCARG(uap, mode),
  546                           svr4_to_bsd_odev_t(SCARG(uap, dev)));
  547 }
  548 
  549 
  550 int
  551 svr4_sys_xmknod(struct lwp *l, const struct svr4_sys_xmknod_args *uap, register_t *retval)
  552 {
  553         return svr4_mknod(l, retval,
  554                           SCARG(uap, path), SCARG(uap, mode),
  555                           svr4_to_bsd_dev_t(SCARG(uap, dev)));
  556 }
  557 
  558 
  559 int
  560 svr4_sys_vhangup(struct lwp *l, const void *v, register_t *retval)
  561 {
  562         return 0;
  563 }
  564 
  565 
  566 int
  567 svr4_sys_sysconfig(struct lwp *l, const struct svr4_sys_sysconfig_args *uap, register_t *retval)
  568 {
  569         int active;
  570 
  571         switch (SCARG(uap, name)) {
  572         case SVR4_CONFIG_NGROUPS:
  573                 *retval = NGROUPS_MAX;
  574                 break;
  575         case SVR4_CONFIG_CHILD_MAX:
  576                 *retval = maxproc;
  577                 break;
  578         case SVR4_CONFIG_OPEN_FILES:
  579                 *retval = maxfiles;
  580                 break;
  581         case SVR4_CONFIG_POSIX_VER:
  582                 *retval = 198808;
  583                 break;
  584         case SVR4_CONFIG_PAGESIZE:
  585                 *retval = PAGE_SIZE;
  586                 break;
  587         case SVR4_CONFIG_CLK_TCK:
  588                 *retval = 60;   /* should this be `hz', ie. 100? */
  589                 break;
  590         case SVR4_CONFIG_XOPEN_VER:
  591                 *retval = 2;    /* XXX: What should that be? */
  592                 break;
  593         case SVR4_CONFIG_PROF_TCK:
  594                 *retval = 60;   /* XXX: What should that be? */
  595                 break;
  596         case SVR4_CONFIG_NPROC_CONF:
  597                 *retval = 1;    /* Only one processor for now */
  598                 break;
  599         case SVR4_CONFIG_NPROC_ONLN:
  600                 *retval = 1;    /* And it better be online */
  601                 break;
  602         case SVR4_CONFIG_AIO_LISTIO_MAX:
  603         case SVR4_CONFIG_AIO_MAX:
  604         case SVR4_CONFIG_AIO_PRIO_DELTA_MAX:
  605                 *retval = 0;    /* No aio support */
  606                 break;
  607         case SVR4_CONFIG_DELAYTIMER_MAX:
  608                 *retval = 0;    /* No delaytimer support */
  609                 break;
  610         case SVR4_CONFIG_MQ_OPEN_MAX:
  611 #ifdef SYSVMSG
  612                 *retval = msginfo.msgmni;
  613 #else
  614                 *retval = 0;
  615 #endif
  616                 break;
  617         case SVR4_CONFIG_MQ_PRIO_MAX:
  618                 *retval = 0;    /* XXX: Don't know */
  619                 break;
  620         case SVR4_CONFIG_RTSIG_MAX:
  621                 *retval = 0;
  622                 break;
  623         case SVR4_CONFIG_SEM_NSEMS_MAX:
  624 #ifdef SYSVSEM
  625                 *retval = seminfo.semmni;
  626 #else
  627                 *retval = 0;
  628 #endif
  629                 break;
  630         case SVR4_CONFIG_SEM_VALUE_MAX:
  631 #ifdef SYSVSEM
  632                 *retval = seminfo.semvmx;
  633 #else
  634                 *retval = 0;
  635 #endif
  636                 break;
  637         case SVR4_CONFIG_SIGQUEUE_MAX:
  638                 *retval = 0;    /* XXX: Don't know */
  639                 break;
  640         case SVR4_CONFIG_SIGRT_MIN:
  641         case SVR4_CONFIG_SIGRT_MAX:
  642                 *retval = 0;    /* No real time signals */
  643                 break;
  644         case SVR4_CONFIG_TIMER_MAX:
  645                 *retval = 3;    /* XXX: real, virtual, profiling */
  646                 break;
  647         case SVR4_CONFIG_PHYS_PAGES:
  648                 *retval = uvmexp.free;  /* XXX: free instead of total */
  649                 break;
  650         case SVR4_CONFIG_AVPHYS_PAGES:
  651                 uvm_estimatepageable(&active, NULL);
  652                 *retval = active;       /* XXX: active instead of avg */
  653                 break;
  654         case SVR4_CONFIG_COHERENCY:
  655                 *retval = 0;    /* XXX */
  656                 break;
  657         case SVR4_CONFIG_SPLIT_CACHE:
  658                 *retval = 0;    /* XXX */
  659                 break;
  660         case SVR4_CONFIG_ICACHESZ:
  661                 *retval = 256;  /* XXX */
  662                 break;
  663         case SVR4_CONFIG_DCACHESZ:
  664                 *retval = 256;  /* XXX */
  665                 break;
  666         case SVR4_CONFIG_ICACHELINESZ:
  667                 *retval = 64;   /* XXX */
  668                 break;
  669         case SVR4_CONFIG_DCACHELINESZ:
  670                 *retval = 64;   /* XXX */
  671                 break;
  672         case SVR4_CONFIG_ICACHEBLKSZ:
  673                 *retval = 64;   /* XXX */
  674                 break;
  675         case SVR4_CONFIG_DCACHEBLKSZ:
  676                 *retval = 64;   /* XXX */
  677                 break;
  678         case SVR4_CONFIG_DCACHETBLKSZ:
  679                 *retval = 64;   /* XXX */
  680                 break;
  681         case SVR4_CONFIG_ICACHE_ASSOC:
  682                 *retval = 1;    /* XXX */
  683                 break;
  684         case SVR4_CONFIG_DCACHE_ASSOC:
  685                 *retval = 1;    /* XXX */
  686                 break;
  687         case SVR4_CONFIG_MAXPID:
  688                 *retval = PID_MAX;
  689                 break;
  690         case SVR4_CONFIG_STACK_PROT:
  691                 *retval = PROT_READ|PROT_WRITE|PROT_EXEC;
  692                 break;
  693         default:
  694                 return EINVAL;
  695         }
  696         return 0;
  697 }
  698 
  699 /* ARGSUSED */
  700 int
  701 svr4_sys_break(struct lwp *l, const struct svr4_sys_break_args *uap, register_t *retval)
  702 {
  703         struct proc *p = l->l_proc;
  704         struct vmspace *vm = p->p_vmspace;
  705         vaddr_t new, old;
  706         int error;
  707 
  708         old = (vaddr_t) vm->vm_daddr;
  709         new = round_page((vaddr_t)SCARG(uap, nsize));
  710 
  711         if (new - old > p->p_rlimit[RLIMIT_DATA].rlim_cur && new > old)
  712                 return ENOMEM;
  713 
  714         old = round_page(old + ctob(vm->vm_dsize));
  715         DPRINTF(("break(2): dsize = %x ctob %x\n",
  716                  vm->vm_dsize, ctob(vm->vm_dsize)));
  717 
  718         if (new > old) {
  719                 error = uvm_map(&vm->vm_map, &old, new - old, NULL,
  720                         UVM_UNKNOWN_OFFSET, 0,
  721                         UVM_MAPFLAG(UVM_PROT_ALL, UVM_PROT_ALL, UVM_INH_COPY,
  722                         UVM_ADV_NORMAL,
  723                         UVM_FLAG_AMAPPAD|UVM_FLAG_FIXED|
  724                         UVM_FLAG_OVERLAY|UVM_FLAG_COPYONW));
  725                 if (error) {
  726                         uprintf("sbrk: grow failed, error = %d\n", error);
  727                         return error;
  728                 }
  729                 vm->vm_dsize += btoc(new - old);
  730         } else if (new < old) {
  731                 uvm_deallocate(&vm->vm_map, new, old - new);
  732                 vm->vm_dsize -= btoc(old - new);
  733         }
  734         return 0;
  735 }
  736 
  737 
  738 static inline clock_t
  739 timeval_to_clock_t(struct timeval *tv)
  740 {
  741         return tv->tv_sec * hz + tv->tv_usec / (1000000 / hz);
  742 }
  743 
  744 
  745 int
  746 svr4_sys_times(struct lwp *l, const struct svr4_sys_times_args *uap, register_t *retval)
  747 {
  748         struct tms               tms;
  749         struct timeval           t;
  750         struct rusage            ru, *rup;
  751         struct proc              *p = l->l_proc;
  752 
  753         ru = p->p_stats->p_ru;
  754         mutex_enter(p->p_lock);
  755         calcru(p, &ru.ru_utime, &ru.ru_stime, NULL, NULL);
  756         rulwps(p, &ru);
  757         mutex_exit(p->p_lock);
  758 
  759         tms.tms_utime = timeval_to_clock_t(&ru.ru_utime);
  760         tms.tms_stime = timeval_to_clock_t(&ru.ru_stime);
  761 
  762         rup = &p->p_stats->p_cru;
  763         tms.tms_cutime = timeval_to_clock_t(&rup->ru_utime);
  764         tms.tms_cstime = timeval_to_clock_t(&rup->ru_stime);
  765 
  766         microtime(&t);
  767         *retval = timeval_to_clock_t(&t);
  768 
  769         return copyout(&tms, SCARG(uap, tp), sizeof(tms));
  770 }
  771 
  772 
  773 int
  774 svr4_sys_ulimit(struct lwp *l, const struct svr4_sys_ulimit_args *uap, register_t *retval)
  775 {
  776         struct proc *p = l->l_proc;
  777         int error;
  778         struct rlimit krl;
  779         register_t r;
  780 
  781         switch (SCARG(uap, cmd)) {
  782         case SVR4_GFILLIM:
  783                 r = p->p_rlimit[RLIMIT_FSIZE].rlim_cur / 512;
  784                 break;
  785 
  786         case SVR4_SFILLIM:
  787                 krl.rlim_cur = SCARG(uap, newlimit) * 512;
  788                 krl.rlim_max = p->p_rlimit[RLIMIT_FSIZE].rlim_max;
  789 
  790                 error = dosetrlimit(l, l->l_proc, RLIMIT_FSIZE, &krl);
  791                 if (error)
  792                         return error;
  793 
  794                 r = p->p_rlimit[RLIMIT_FSIZE].rlim_cur;
  795                 break;
  796 
  797         case SVR4_GMEMLIM:
  798                 r = p->p_rlimit[RLIMIT_DATA].rlim_cur;
  799                 if (r > 0x7fffffff)
  800                         r = 0x7fffffff;
  801                 r += (long)p->p_vmspace->vm_daddr;
  802                 break;
  803 
  804         case SVR4_GDESLIM:
  805                 r = p->p_rlimit[RLIMIT_NOFILE].rlim_cur;
  806                 break;
  807 
  808         default:
  809                 return EINVAL;
  810         }
  811 
  812         *retval = r > 0x7fffffff ? 0x7fffffff : r;
  813         return 0;
  814 }
  815 
  816 
  817 int
  818 svr4_sys_pgrpsys(struct lwp *l, const struct svr4_sys_pgrpsys_args *uap, register_t *retval)
  819 {
  820         struct proc *p = l->l_proc;
  821 
  822         switch (SCARG(uap, cmd)) {
  823         case 1:                 /* setpgrp() */
  824                 /*
  825                  * SVR4 setpgrp() (which takes no arguments) has the
  826                  * semantics that the session ID is also created anew, so
  827                  * in almost every sense, setpgrp() is identical to
  828                  * setsid() for SVR4.  (Under BSD, the difference is that
  829                  * a setpgid(0,0) will not create a new session.)
  830                  */
  831                 sys_setsid(l, NULL, retval);
  832                 /*FALLTHROUGH*/
  833 
  834         case 0:                 /* getpgrp() */
  835                 mutex_enter(proc_lock);
  836                 *retval = p->p_pgrp->pg_id;
  837                 mutex_exit(proc_lock);
  838                 return 0;
  839 
  840         case 2:                 /* getsid(pid) */
  841                 mutex_enter(proc_lock);
  842                 if (SCARG(uap, pid) != 0 &&
  843                     (p = p_find(SCARG(uap, pid), PFIND_LOCKED | PFIND_ZOMBIE)) == NULL) {
  844                         mutex_exit(proc_lock);
  845                         return ESRCH;
  846                 }
  847                 /*
  848                  * This has already been initialized to the pid of
  849                  * the session leader.
  850                  */
  851                 *retval = (register_t) p->p_session->s_sid;
  852                 mutex_exit(proc_lock);
  853                 return 0;
  854 
  855         case 3:                 /* setsid() */
  856                 return sys_setsid(l, NULL, retval);
  857 
  858         case 4:                 /* getpgid(pid) */
  859                 mutex_enter(proc_lock);
  860                 if (SCARG(uap, pid) != 0 &&
  861                     (p = p_find(SCARG(uap, pid), PFIND_LOCKED | PFIND_ZOMBIE)) == NULL) {
  862                         mutex_exit(proc_lock);
  863                         return ESRCH;
  864                 }
  865 
  866                 *retval = (int) p->p_pgrp->pg_id;
  867                 mutex_exit(proc_lock);
  868                 return 0;
  869 
  870         case 5:                 /* setpgid(pid, pgid); */
  871                 {
  872                         struct sys_setpgid_args sa;
  873 
  874                         SCARG(&sa, pid) = SCARG(uap, pid);
  875                         SCARG(&sa, pgid) = SCARG(uap, pgid);
  876                         return sys_setpgid(l, &sa, retval);
  877                 }
  878 
  879         default:
  880                 return EINVAL;
  881         }
  882 }
  883 
  884 struct svr4_hrtcntl_args {
  885         syscallarg(int)                         cmd;
  886         syscallarg(int)                         fun;
  887         syscallarg(int)                         clk;
  888         syscallarg(svr4_hrt_interval_t *)       iv;
  889         syscallarg(svr4_hrt_time_t *)           ti;
  890 };
  891 
  892 
  893 static int
  894 svr4_hrtcntl(struct lwp *l, const struct svr4_hrtcntl_args *uap,
  895     register_t *retval)
  896 {
  897         switch (SCARG(uap, fun)) {
  898         case SVR4_HRT_CNTL_RES:
  899                 DPRINTF(("htrcntl(RES)\n"));
  900                 *retval = SVR4_HRT_USEC;
  901                 return 0;
  902 
  903         case SVR4_HRT_CNTL_TOFD:
  904                 DPRINTF(("htrcntl(TOFD)\n"));
  905                 {
  906                         struct timeval tv;
  907                         svr4_hrt_time_t t;
  908                         if (SCARG(uap, clk) != SVR4_HRT_CLK_STD) {
  909                                 DPRINTF(("clk == %d\n", SCARG(uap, clk)));
  910                                 return EINVAL;
  911                         }
  912                         if (SCARG(uap, ti) == NULL) {
  913                                 DPRINTF(("ti NULL\n"));
  914                                 return EINVAL;
  915                         }
  916                         microtime(&tv);
  917                         t.h_sec = tv.tv_sec;
  918                         t.h_rem = tv.tv_usec;
  919                         t.h_res = SVR4_HRT_USEC;
  920                         return copyout(&t, SCARG(uap, ti), sizeof(t));
  921                 }
  922 
  923         case SVR4_HRT_CNTL_START:
  924                 DPRINTF(("htrcntl(START)\n"));
  925                 return ENOSYS;
  926 
  927         case SVR4_HRT_CNTL_GET:
  928                 DPRINTF(("htrcntl(GET)\n"));
  929                 return ENOSYS;
  930         default:
  931                 DPRINTF(("Bad htrcntl command %d\n", SCARG(uap, fun)));
  932                 return ENOSYS;
  933         }
  934 }
  935 
  936 
  937 int
  938 svr4_sys_hrtsys(struct lwp *l, const struct svr4_sys_hrtsys_args *uap, register_t *retval)
  939 {
  940 
  941         switch (SCARG(uap, cmd)) {
  942         case SVR4_HRT_CNTL:
  943                 return svr4_hrtcntl(l, (const struct svr4_hrtcntl_args *) uap,
  944                                     retval);
  945 
  946         case SVR4_HRT_ALRM:
  947                 DPRINTF(("hrtalarm\n"));
  948                 return ENOSYS;
  949 
  950         case SVR4_HRT_SLP:
  951                 DPRINTF(("hrtsleep\n"));
  952                 return ENOSYS;
  953 
  954         case SVR4_HRT_CAN:
  955                 DPRINTF(("hrtcancel\n"));
  956                 return ENOSYS;
  957 
  958         default:
  959                 DPRINTF(("Bad hrtsys command %d\n", SCARG(uap, cmd)));
  960                 return EINVAL;
  961         }
  962 }
  963 
  964 
  965 static void
  966 svr4_setinfo(int pid, struct rusage *ru, int st, svr4_siginfo_t *s)
  967 {
  968         int sig;
  969 
  970         memset(s, 0, sizeof(*s));
  971 
  972         s->si_signo = SVR4_SIGCHLD;
  973         s->si_errno = 0;        /* XXX? */
  974 
  975         if (pid != 0) {
  976                 s->si_pid = pid;
  977                 s->si_stime = ru->ru_stime.tv_sec;
  978                 s->si_utime = ru->ru_utime.tv_sec;
  979         }
  980 
  981         if (WIFEXITED(st)) {
  982                 s->si_status = WEXITSTATUS(st);
  983                 s->si_code = SVR4_CLD_EXITED;
  984         } else if (WIFSTOPPED(st)) {
  985                 sig = WSTOPSIG(st);
  986                 if (sig >= 0 && sig < NSIG)
  987                         s->si_status = native_to_svr4_signo[sig];
  988 
  989                 if (s->si_status == SVR4_SIGCONT)
  990                         s->si_code = SVR4_CLD_CONTINUED;
  991                 else
  992                         s->si_code = SVR4_CLD_STOPPED;
  993         } else {
  994                 sig = WTERMSIG(st);
  995                 if (sig >= 0 && sig < NSIG)
  996                         s->si_status = native_to_svr4_signo[sig];
  997 
  998                 if (WCOREDUMP(st))
  999                         s->si_code = SVR4_CLD_DUMPED;
 1000                 else
 1001                         s->si_code = SVR4_CLD_KILLED;
 1002         }
 1003 
 1004         DPRINTF(("siginfo [pid %ld signo %d code %d errno %d status %d]\n",
 1005                 (long) s->si_pid,
 1006                 s->si_signo, s->si_code, s->si_errno, s->si_status));
 1007 }
 1008 
 1009 
 1010 int
 1011 svr4_sys_waitsys(struct lwp *l, const struct svr4_sys_waitsys_args *uap, register_t *retval)
 1012 {
 1013         int options, status;
 1014         int error;
 1015         int was_zombie;
 1016         struct rusage ru;
 1017         svr4_siginfo_t i;
 1018         int id = SCARG(uap, id);
 1019 
 1020         switch (SCARG(uap, grp)) {
 1021         case SVR4_P_PID:
 1022                 break;
 1023 
 1024         case SVR4_P_PGID:
 1025                 mutex_enter(proc_lock);
 1026                 id = -l->l_proc->p_pgid;
 1027                 mutex_exit(proc_lock);
 1028                 break;
 1029 
 1030         case SVR4_P_ALL:
 1031                 id = WAIT_ANY;
 1032                 break;
 1033 
 1034         default:
 1035                 return EINVAL;
 1036         }
 1037 
 1038         /* Translate options */
 1039         options = WOPTSCHECKED;
 1040         if (SCARG(uap, options) & SVR4_WNOWAIT)
 1041                 options |= WNOWAIT;
 1042         if (SCARG(uap, options) & SVR4_WNOHANG)
 1043                 options |= WNOHANG;
 1044         if ((SCARG(uap, options) & (SVR4_WEXITED|SVR4_WTRAPPED)) == 0)
 1045                 options |= WNOZOMBIE;
 1046         if (SCARG(uap, options) & (SVR4_WSTOPPED|SVR4_WCONTINUED))
 1047                 options |= WUNTRACED;
 1048 
 1049         DPRINTF(("waitsys(%d, %d, %p, %x)\n",
 1050                  SCARG(uap, grp), id,
 1051                  SCARG(uap, info), SCARG(uap, options)));
 1052 
 1053         error = do_sys_wait(l, &id, &status, options, &ru,
 1054             &was_zombie);
 1055 
 1056         retval[0] = id;
 1057         if (error != 0)
 1058                 return error;
 1059 
 1060         svr4_setinfo(id, &ru, status, &i);
 1061         return copyout(&i, SCARG(uap, info), sizeof(i));
 1062 }
 1063 
 1064 
 1065 static int
 1066 svr4_copyout_statvfs(const struct statvfs *bfs, struct svr4_statvfs *sufs)
 1067 {
 1068         struct svr4_statvfs *sfs = malloc(sizeof(*sfs), M_TEMP, M_WAITOK);
 1069         int error;
 1070 
 1071         sfs->f_bsize = bfs->f_bsize;
 1072         sfs->f_frsize = bfs->f_frsize;
 1073         sfs->f_blocks = bfs->f_blocks;
 1074         sfs->f_bfree = bfs->f_bfree;
 1075         sfs->f_bavail = bfs->f_bavail;
 1076         sfs->f_files = bfs->f_files;
 1077         sfs->f_ffree = bfs->f_ffree;
 1078         sfs->f_favail = bfs->f_favail;
 1079         sfs->f_fsid = bfs->f_fsidx.__fsid_val[0];
 1080         memcpy(sfs->f_basetype, bfs->f_fstypename, sizeof(sfs->f_basetype));
 1081         sfs->f_flag = 0;
 1082         if (bfs->f_flag & MNT_RDONLY)
 1083                 sfs->f_flag |= SVR4_ST_RDONLY;
 1084         if (bfs->f_flag & MNT_NOSUID)
 1085                 sfs->f_flag |= SVR4_ST_NOSUID;
 1086         sfs->f_namemax = MAXNAMLEN;
 1087         memcpy(sfs->f_fstr, bfs->f_fstypename, sizeof(sfs->f_fstr)); /* XXX */
 1088         memset(sfs->f_filler, 0, sizeof(sfs->f_filler));
 1089 
 1090         error = copyout(sfs, sufs, sizeof(*sfs));
 1091 
 1092         free(sfs, M_TEMP);
 1093         return error;
 1094 }
 1095 
 1096 
 1097 static int
 1098 svr4_copyout_statvfs64(const struct statvfs *bfs, struct svr4_statvfs64 *sufs)
 1099 {
 1100         struct svr4_statvfs64 *sfs = malloc(sizeof(*sfs), M_TEMP, M_WAITOK);
 1101         int error;
 1102 
 1103         sfs->f_bsize = bfs->f_bsize;
 1104         sfs->f_frsize = bfs->f_frsize;
 1105         sfs->f_blocks = bfs->f_blocks;
 1106         sfs->f_bfree = bfs->f_bfree;
 1107         sfs->f_bavail = bfs->f_bavail;
 1108         sfs->f_files = bfs->f_files;
 1109         sfs->f_ffree = bfs->f_ffree;
 1110         sfs->f_favail = bfs->f_ffree;
 1111         sfs->f_fsid = bfs->f_fsidx.__fsid_val[0];
 1112         memcpy(sfs->f_basetype, bfs->f_fstypename, sizeof(sfs->f_basetype));
 1113         sfs->f_flag = 0;
 1114         if (bfs->f_flag & MNT_RDONLY)
 1115                 sfs->f_flag |= SVR4_ST_RDONLY;
 1116         if (bfs->f_flag & MNT_NOSUID)
 1117                 sfs->f_flag |= SVR4_ST_NOSUID;
 1118         sfs->f_namemax = MAXNAMLEN;
 1119         memcpy(sfs->f_fstr, bfs->f_fstypename, sizeof(sfs->f_fstr)); /* XXX */
 1120         memset(sfs->f_filler, 0, sizeof(sfs->f_filler));
 1121 
 1122         error = copyout(sfs, sufs, sizeof(*sfs));
 1123 
 1124         free(sfs, M_TEMP);
 1125         return error;
 1126 }
 1127 
 1128 
 1129 int
 1130 svr4_sys_statvfs(struct lwp *l, const struct svr4_sys_statvfs_args *uap, register_t *retval)
 1131 {
 1132         struct statvfs *sb;
 1133         int error;
 1134 
 1135         sb =  STATVFSBUF_GET();
 1136         error = do_sys_pstatvfs(l, SCARG(uap, path), ST_WAIT, sb);
 1137         if (error == 0)
 1138                 error = svr4_copyout_statvfs(sb, SCARG(uap, fs));
 1139         STATVFSBUF_PUT(sb);
 1140         return error;
 1141 }
 1142 
 1143 
 1144 int
 1145 svr4_sys_fstatvfs(struct lwp *l, const struct svr4_sys_fstatvfs_args *uap, register_t *retval)
 1146 {
 1147         struct statvfs *sb;
 1148         int error;
 1149 
 1150         sb =  STATVFSBUF_GET();
 1151         error = do_sys_fstatvfs(l, SCARG(uap, fd), ST_WAIT, sb);
 1152         if (error == 0)
 1153                 error = svr4_copyout_statvfs(sb, SCARG(uap, fs));
 1154         STATVFSBUF_PUT(sb);
 1155         return error;
 1156 }
 1157 
 1158 
 1159 int
 1160 svr4_sys_statvfs64(struct lwp *l, const struct svr4_sys_statvfs64_args *uap, register_t *retval)
 1161 {
 1162         struct statvfs *sb;
 1163         int error;
 1164 
 1165         sb =  STATVFSBUF_GET();
 1166         error = do_sys_pstatvfs(l, SCARG(uap, path), ST_WAIT, sb);
 1167         if (error == 0)
 1168                 error = svr4_copyout_statvfs64(sb, SCARG(uap, fs));
 1169         STATVFSBUF_PUT(sb);
 1170         return error;
 1171 }
 1172 
 1173 
 1174 int
 1175 svr4_sys_fstatvfs64(struct lwp *l, const struct svr4_sys_fstatvfs64_args *uap, register_t *retval)
 1176 {
 1177         struct statvfs *sb;
 1178         int error;
 1179 
 1180         sb =  STATVFSBUF_GET();
 1181         error = do_sys_fstatvfs(l, SCARG(uap, fd), ST_WAIT, sb);
 1182         if (error == 0)
 1183                 error = svr4_copyout_statvfs64(sb, SCARG(uap, fs));
 1184         STATVFSBUF_PUT(sb);
 1185         return error;
 1186 }
 1187 
 1188 int
 1189 svr4_sys_alarm(struct lwp *l, const struct svr4_sys_alarm_args *uap, register_t *retval)
 1190 {
 1191         struct itimerval tp;
 1192 
 1193         dogetitimer(l->l_proc, ITIMER_REAL, &tp);
 1194         if (tp.it_value.tv_usec)
 1195                 tp.it_value.tv_sec++;
 1196         *retval = (register_t)tp.it_value.tv_sec;
 1197 
 1198         timerclear(&tp.it_interval);
 1199         tp.it_value.tv_sec = SCARG(uap, sec);
 1200         tp.it_value.tv_usec = 0;
 1201 
 1202         return dosetitimer(l->l_proc, ITIMER_REAL, &tp);
 1203 }
 1204 
 1205 
 1206 int
 1207 svr4_sys_gettimeofday(struct lwp *l, const struct svr4_sys_gettimeofday_args *uap, register_t *retval)
 1208 {
 1209 
 1210         if (SCARG(uap, tp)) {
 1211                 struct timeval atv;
 1212 
 1213                 microtime(&atv);
 1214                 return copyout(&atv, SCARG(uap, tp), sizeof (atv));
 1215         }
 1216 
 1217         return 0;
 1218 }
 1219 
 1220 
 1221 int
 1222 svr4_sys_facl(struct lwp *l, const struct svr4_sys_facl_args *uap, register_t *retval)
 1223 {
 1224 
 1225         *retval = 0;
 1226 
 1227         switch (SCARG(uap, cmd)) {
 1228         case SVR4_SYS_SETACL:
 1229                 /* We don't support acls on any filesystem */
 1230                 return ENOSYS;
 1231 
 1232         case SVR4_SYS_GETACL:
 1233 #if 1
 1234                 return ENOSYS;
 1235 #else
 1236                 /*
 1237                  * XXX This code is completly borked, no idea what it was
 1238                  * trying to do.
 1239                  */
 1240                 return copyout(retval, &SCARG(uap, num),
 1241                     sizeof(SCARG(uap, num)));
 1242 #endif
 1243 
 1244         case SVR4_SYS_GETACLCNT:
 1245                 return 0;
 1246 
 1247         default:
 1248                 return EINVAL;
 1249         }
 1250 }
 1251 
 1252 
 1253 int
 1254 svr4_sys_acl(struct lwp *l, const struct svr4_sys_acl_args *uap, register_t *retval)
 1255 {
 1256         return svr4_sys_facl(l, (const void *)uap, retval);     /* XXX: for now the same */
 1257 }
 1258 
 1259 
 1260 int
 1261 svr4_sys_auditsys(struct lwp *l, const struct svr4_sys_auditsys_args *uap, register_t *retval)
 1262 {
 1263         /*
 1264          * XXX: Big brother is *not* watching.
 1265          */
 1266         return 0;
 1267 }
 1268 
 1269 
 1270 int
 1271 svr4_sys_memcntl(struct lwp *l, const struct svr4_sys_memcntl_args *uap, register_t *retval)
 1272 {
 1273         switch (SCARG(uap, cmd)) {
 1274         case SVR4_MC_SYNC:
 1275                 {
 1276                         struct sys___msync13_args msa;
 1277 
 1278                         SCARG(&msa, addr) = SCARG(uap, addr);
 1279                         SCARG(&msa, len) = SCARG(uap, len);
 1280                         SCARG(&msa, flags) = (int)(u_long)SCARG(uap, arg);
 1281 
 1282                         return sys___msync13(l, &msa, retval);
 1283                 }
 1284         case SVR4_MC_ADVISE:
 1285                 {
 1286                         struct sys_madvise_args maa;
 1287 
 1288                         SCARG(&maa, addr) = SCARG(uap, addr);
 1289                         SCARG(&maa, len) = SCARG(uap, len);
 1290                         SCARG(&maa, behav) = (int)(u_long)SCARG(uap, arg);
 1291 
 1292                         return sys_madvise(l, &maa, retval);
 1293                 }
 1294         case SVR4_MC_LOCK:
 1295         case SVR4_MC_UNLOCK:
 1296         case SVR4_MC_LOCKAS:
 1297         case SVR4_MC_UNLOCKAS:
 1298                 return EOPNOTSUPP;
 1299         default:
 1300                 return ENOSYS;
 1301         }
 1302 }
 1303 
 1304 
 1305 int
 1306 svr4_sys_nice(struct lwp *l, const struct svr4_sys_nice_args *uap, register_t *retval)
 1307 {
 1308         struct sys_setpriority_args ap;
 1309         int error;
 1310 
 1311         SCARG(&ap, which) = PRIO_PROCESS;
 1312         SCARG(&ap, who) = 0;
 1313         SCARG(&ap, prio) = SCARG(uap, prio);
 1314 
 1315         if ((error = sys_setpriority(l, &ap, retval)) != 0)
 1316                 return error;
 1317 
 1318         if ((error = sys_getpriority(l, (const void *)&ap, retval)) != 0)
 1319                 return error;
 1320 
 1321         return 0;
 1322 }
 1323 
 1324 
 1325 int
 1326 svr4_sys_resolvepath(struct lwp *l, const struct svr4_sys_resolvepath_args *uap, register_t *retval)
 1327 {
 1328         struct nameidata nd;
 1329         int error;
 1330         size_t len;
 1331 
 1332         NDINIT(&nd, LOOKUP, NOFOLLOW | SAVENAME | TRYEMULROOT, UIO_USERSPACE,
 1333             SCARG(uap, path));
 1334 
 1335         if ((error = namei(&nd)) != 0)
 1336                 return error;
 1337 
 1338         if ((error = copyoutstr(nd.ni_cnd.cn_pnbuf, SCARG(uap, buf),
 1339             SCARG(uap, bufsiz), &len)) != 0)
 1340                 goto bad;
 1341 
 1342         *retval = len;
 1343 bad:
 1344         vrele(nd.ni_vp);
 1345         PNBUF_PUT(nd.ni_cnd.cn_pnbuf);
 1346         return error;
 1347 }
Cache object: b3374b187b002ef8606959df4761f801
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FreeBSD/Linux Kernel Cross Reference sys/compat/svr4/svr4_misc.c

FreeBSD/Linux Kernel Cross Reference
sys/compat/svr4/svr4_misc.c
