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/*
* linux/ibcs/socket.c
*
* Copyright (C) 1994, 1996 Mike Jagdis (jaggy@purplet.demon.co.uk)
*
* $Id: socket.c,v 1.7 1996/03/29 17:33:33 mike Exp $
* $Source: /usr/CVS/ibcs/iBCSemul/socket.c,v $
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/version.h>
#include <asm/segment.h>
#ifndef KERNEL_DS
#include <linux/segment.h>
#endif
#include <linux/types.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/ptrace.h>
#include <linux/net.h>
#include <linux/socket.h>
#include <linux/sys.h>
#include <ibcs/ibcs.h>
#include <ibcs/socket.h>
#include <ibcs/map.h>
#include <ibcs/trace.h>
int
ibcs_setsockopt(unsigned long *sp)
{
int error;
int level, optname;
error = verify_area(VERIFY_READ,
((unsigned long *)sp),
5*sizeof(long));
if (error)
return error;
level = (int)get_fs_long(((unsigned long *)sp)+1);
optname = (int)get_fs_long(((unsigned long *)sp)+2);
switch (level) {
case 0xffff:
put_fs_long(SOL_SOCKET, ((unsigned long *)sp)+1);
optname = map_value(sopt_map, optname, 0);
put_fs_long(optname, ((unsigned long *)sp)+2);
switch (optname) {
/* The following are not currently implemented
* under Linux so we must fake them in
* reasonable ways. (Only SO_PROTOTYPE is
* documented in SCO's man page).
*/
case SO_PROTOTYPE:
case SO_ORDREL:
case SO_SNDTIMEO:
case SO_RCVTIMEO:
return -ENOPROTOOPT;
case SO_USELOOPBACK:
case SO_SNDLOWAT:
case SO_RCVLOWAT:
return 0;
/* The following are not currenty implemented
* under Linux and probably aren't settable
* anyway.
*/
case SO_IMASOCKET:
return -ENOPROTOOPT;
}
default:
/* FIXME: We assume everything else uses the
* same level and option numbers. This is true
* for IPPROTO_TCP(/SOL_TCP) and TCP_NDELAY
* but is known to be incorrect for other
* potential options :-(.
*/
break;
}
return SYS(socketcall)(SYS_SETSOCKOPT, sp);
}
int
ibcs_getsockopt(unsigned long *sp)
{
int error;
int level, optname;
char *optval;
long *optlen;
error = verify_area(VERIFY_READ,
((unsigned long *)sp),
5*sizeof(long));
if (error)
return error;
level = (int)get_fs_long(((unsigned long *)sp)+1);
optname = (int)get_fs_long(((unsigned long *)sp)+2);
optval = (char *)get_fs_long(((unsigned long *)sp)+3);
optlen = (long *)get_fs_long(((unsigned long *)sp)+4);
#ifdef IBCS_TRACE
if ((ibcs_trace & (TRACE_STREAMS|TRACE_SOCKSYS))) {
printk(KERN_DEBUG "iBCS: getsockopt level=%d, "
"optname=%d, optval=0x%08lx, optlen=0x%08lx\n",
level, optname, (unsigned long)optval,
(unsigned long)optlen);
}
#endif
switch (level) {
case 0xffff:
put_fs_long(SOL_SOCKET, ((unsigned long *)sp)+1);
optname = map_value(sopt_map, optname, 0);
put_fs_long(optname, ((unsigned long *)sp)+2);
switch (optname) {
/* The following are not currently implemented
* under Linux so we must fake them in
* reasonable ways. (Only SO_PROTOTYPE is
* documented in SCO's man page).
*/
case SO_PROTOTYPE: {
error = verify_area(VERIFY_WRITE,
(char *)optlen,
sizeof(long));
if (error)
return error;
if (get_fs_long(optlen) < sizeof(long))
return -EINVAL;
error = verify_area(VERIFY_WRITE,
(char *)optval,
sizeof(long));
if (!error) {
put_fs_long(0, optval);
put_fs_long(sizeof(long),
optlen);
}
return error;
}
case SO_ORDREL:
case SO_SNDTIMEO:
case SO_RCVTIMEO:
return -ENOPROTOOPT;
case SO_USELOOPBACK:
case SO_SNDLOWAT:
case SO_RCVLOWAT:
case SO_IMASOCKET: {
error = verify_area(VERIFY_WRITE,
(char *)optlen,
sizeof(long));
if (error)
return error;
if (get_fs_long(optlen) < sizeof(long))
return -EINVAL;
error = verify_area(VERIFY_WRITE,
(char *)optval,
sizeof(long));
if (!error) {
put_fs_long(1, optval);
put_fs_long(sizeof(long),
optlen);
}
return error;
}
}
default:
/* FIXME: We assume everything else uses the
* same level and option numbers. This is true
* for IPPROTO_TCP(/SOL_TCP) and TCP_NDELAY
* but is known to be incorrect for other
* potential options :-(.
*/
break;
}
return SYS(socketcall)(SYS_GETSOCKOPT, sp);
}
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