The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/compat/linux32/common/linux32_socketcall.c

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    1 /*      $NetBSD: linux32_socketcall.c,v 1.6 2007/12/20 23:02:58 dsl Exp $ */
    2 
    3 /*-
    4  * Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  * 3. All advertising materials mentioning features or use of this software
   15  *    must display the following acknowledgement:
   16  *      This product includes software developed by Emmanuel Dreyfus
   17  * 4. The name of the author may not be used to endorse or promote 
   18  *    products derived from this software without specific prior written 
   19  *    permission.
   20  *
   21  * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS'' 
   22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 
   23  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 
   25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   31  * POSSIBILITY OF SUCH DAMAGE.
   32  */
   33 #include <sys/cdefs.h>
   34 __KERNEL_RCSID(0, "$NetBSD: linux32_socketcall.c,v 1.6 2007/12/20 23:02:58 dsl Exp $");
   35 
   36 #include "opt_ktrace.h"
   37 #include <sys/types.h>
   38 #include <sys/param.h>
   39 #include <sys/time.h>
   40 #include <sys/proc.h>
   41 #include <sys/ucred.h>
   42 #include <sys/ktrace.h>
   43 
   44 #include <compat/netbsd32/netbsd32.h>
   45 #include <compat/netbsd32/netbsd32_syscallargs.h>
   46 
   47 #include <compat/linux/common/linux_types.h>
   48 #include <compat/linux/common/linux_signal.h>
   49 #include <compat/linux/linux_syscallargs.h>
   50 
   51 #include <compat/linux32/common/linux32_types.h>
   52 #include <compat/linux32/common/linux32_signal.h>
   53 #include <compat/linux32/common/linux32_machdep.h>
   54 #include <compat/linux32/common/linux32_sysctl.h>
   55 #include <compat/linux32/common/linux32_socketcall.h>
   56 #include <compat/linux32/linux32_syscallargs.h>
   57 
   58 #define sc(emul, fn) { #fn, sizeof (struct emul##_##fn##_args), \
   59         (int (*)(struct lwp *, const void *, register_t *))emul##_##fn }
   60 
   61 static const struct {
   62         const char *name;
   63         int argsize;
   64         int (*syscall)(struct lwp *, const void *, register_t *);
   65 } linux32_socketcall[LINUX32_MAX_SOCKETCALL+1] = {
   66         {"invalid",     -1, NULL},
   67         sc(linux32_sys, socket),
   68         sc(linux32_sys, bind),
   69         sc(linux32_sys, connect),
   70         sc(netbsd32, listen),
   71         sc(linux32_sys, accept),
   72         sc(linux32_sys, getsockname),
   73         sc(linux32_sys, getpeername),
   74         sc(linux32_sys, socketpair),
   75         sc(linux32_sys, send),
   76         sc(linux32_sys, recv),
   77         sc(linux32_sys, sendto),
   78         sc(linux32_sys, recvfrom),
   79         sc(netbsd32, shutdown),
   80         sc(linux32_sys, setsockopt),
   81         sc(linux32_sys, getsockopt),
   82         sc(linux32_sys, sendmsg),
   83         sc(linux32_sys, recvmsg),
   84 };
   85 #undef sc
   86 
   87 
   88 int
   89 linux32_sys_socketcall(struct lwp *l, const struct linux32_sys_socketcall_args *uap, register_t *retval)
   90 {
   91         /* {
   92                 syscallarg(int) what;
   93                 syscallarg(netbsd32_voidp) args;
   94         } */
   95         union linux32_socketcall_args ua;
   96         int error;
   97 
   98         if (SCARG(uap, what) < 0 || SCARG(uap, what) > LINUX32_MAX_SOCKETCALL)
   99                 return ENOSYS;
  100 
  101         if ((error = copyin(SCARG_P32(uap, args), &ua,
  102             linux32_socketcall[SCARG(uap, what)].argsize)) != 0)
  103                 return error;
  104 
  105         /* Trace the socket-call arguments as 'GIO' on fd -1 */
  106         ktrkuser(linux32_socketcall[SCARG(uap, what)].name, &ua,
  107             linux32_socketcall[SCARG(uap, what)].argsize);
  108 
  109         return linux32_socketcall[SCARG(uap, what)].syscall(l, &ua, retval);
  110 }

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