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      1 /*
      2  * Check decoding of pkey_alloc syscall.
      3  *
      4  * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr (at) gmail.com>
      5  * Copyright (c) 2016-2018 The strace developers.
      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 #include "tests.h"
     32 #include <asm/unistd.h>
     33 #include "scno.h"
     34 
     35 #ifdef __NR_pkey_alloc
     36 
     37 # include <stdio.h>
     38 # include <unistd.h>
     39 
     40 int
     41 main(void)
     42 {
     43 	static const kernel_ulong_t flags[] = {
     44 		0,
     45 		(kernel_ulong_t) 0xbadc0ded00000000ULL,
     46 		(kernel_ulong_t) 0xffff0000eeee1111ULL,
     47 		(kernel_ulong_t) 0x123456789abcdef0ULL,
     48 	};
     49 	static const struct {
     50 		kernel_ulong_t val;
     51 		const char *str;
     52 	} rights[] = {
     53 		{ (kernel_ulong_t) 0xbadc0ded00000002ULL,
     54 			sizeof(kernel_ulong_t) > sizeof(int) ?
     55 			"PKEY_DISABLE_WRITE|0xbadc0ded00000000" :
     56 			"PKEY_DISABLE_WRITE" },
     57 		{ 0xdec0ded, "PKEY_DISABLE_ACCESS|PKEY_DISABLE_EXECUTE|"
     58 				"0xdec0de8" },
     59 		{ 0x7, "PKEY_DISABLE_ACCESS|PKEY_DISABLE_WRITE|"
     60 				"PKEY_DISABLE_EXECUTE" },
     61 		{ ARG_STR(0) },
     62 		{ 0xbadc0de8, "0xbadc0de8 /* PKEY_??? */" },
     63 	};
     64 
     65 	long rc;
     66 	unsigned int i;
     67 	unsigned int j;
     68 
     69 	for (i = 0; i < ARRAY_SIZE(flags); i++) {
     70 		for (j = 0; j < ARRAY_SIZE(rights); j++) {
     71 			rc = syscall(__NR_pkey_alloc, flags[i], rights[j].val);
     72 			printf("pkey_alloc(%#llx, %s) = %s\n",
     73 			       (unsigned long long) flags[i], rights[j].str,
     74 			       sprintrc(rc));
     75 		}
     76 	}
     77 
     78 	puts("+++ exited with 0 +++");
     79 
     80 	return 0;
     81 }
     82 
     83 #else
     84 
     85 SKIP_MAIN_UNDEFINED("__NR_pkey_alloc");
     86 
     87 #endif
     88