You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
65 lines
2.2 KiB
65 lines
2.2 KiB
/* |
|
* Support for decoding of NS_* ioctl commands. |
|
* |
|
* Copyright (c) 2017 Nikolay Marchuk <marchuk.nikolay.a@gmail.com> |
|
* All rights reserved. |
|
* |
|
* Redistribution and use in source and binary forms, with or without |
|
* modification, are permitted provided that the following conditions |
|
* are met: |
|
* 1. Redistributions of source code must retain the above copyright |
|
* notice, this list of conditions and the following disclaimer. |
|
* 2. Redistributions in binary form must reproduce the above copyright |
|
* notice, this list of conditions and the following disclaimer in the |
|
* documentation and/or other materials provided with the distribution. |
|
* 3. The name of the author may not be used to endorse or promote products |
|
* derived from this software without specific prior written permission. |
|
* |
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
|
*/ |
|
|
|
#include "defs.h" |
|
#include "nsfs.h" |
|
|
|
int |
|
nsfs_ioctl(struct tcb *tcp, unsigned int code, kernel_ulong_t arg) |
|
{ |
|
unsigned int uid; |
|
switch (code) { |
|
case NS_GET_USERNS: |
|
case NS_GET_PARENT: |
|
return 1 + RVAL_FD + RVAL_DECODED; |
|
case NS_GET_NSTYPE: |
|
if (entering(tcp)) |
|
return 0; |
|
if (!syserror(tcp)) { |
|
const char *outstr; |
|
outstr = xlookup(setns_types, tcp->u_rval); |
|
if (outstr) { |
|
tcp->auxstr = outstr; |
|
return 1 + RVAL_STR; |
|
} |
|
} |
|
return 1; |
|
case NS_GET_OWNER_UID: |
|
if (entering(tcp)) |
|
return 0; |
|
tprints(", "); |
|
if (!umove_or_printaddr(tcp, arg, &uid)) { |
|
printuid("[", uid); |
|
tprints("]"); |
|
} |
|
return 1; |
|
default: |
|
return RVAL_DECODED; |
|
} |
|
}
|
|
|