Home | History | Annotate | Download | only in tests 
      1 /*
      2  * Check decoding of socketcall syscall.
      3  *
      4  * Copyright (c) 2016 Dmitry V. Levin <ldv (at) altlinux.org>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. The name of the author may not be used to endorse or promote products
     16  *    derived from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #include "tests.h"
     31 #include <asm/unistd.h>
     32 
     33 #ifdef __NR_socketcall
     34 
     35 # include <assert.h>
     36 # include <stdio.h>
     37 # include <unistd.h>
     38 
     39 # include "xlat.h"
     40 # include "xlat/socketcalls.h"
     41 
     42 static const char *
     43 xlookup_uint(const struct xlat *xlat, const unsigned int val)
     44 {
     45 	for (; xlat->str != NULL; xlat++)
     46 		if (xlat->val == val)
     47 			return xlat->str;
     48 	return NULL;
     49 }
     50 
     51 static const int sc_min = 1, sc_max = 20;
     52 static void *efault;
     53 
     54 static void
     55 test_socketcall(const int i, const void *const addr)
     56 {
     57 	const unsigned long call =
     58 		(unsigned long) 0xfacefeed00000000ULL | (unsigned int) i;
     59 
     60 	long rc = syscall(__NR_socketcall, call, addr);
     61 
     62 	if (i < sc_min || i > sc_max) {
     63 		printf("socketcall(%d, %p) = %ld %s (%m)\n",
     64 		       (int) call, addr, rc, errno2name());
     65 	} else if (addr == efault) {
     66 		const char *const str = xlookup_uint(socketcalls, i);
     67 		assert(str);
     68 		printf("socketcall(%s, %p) = %ld %s (%m)\n",
     69 		       str, addr, rc, errno2name());
     70 	}
     71 }
     72 int
     73 main(void)
     74 {
     75 	assert((unsigned) sc_min == socketcalls[0].val);
     76 	assert((unsigned) sc_max == socketcalls[ARRAY_SIZE(socketcalls) - 2].val);
     77 
     78 	const unsigned long *const args = tail_alloc(sizeof(*args) * 6);
     79 	efault = tail_alloc(1) + 1;
     80 
     81 	int i;
     82 	for (i = sc_min - 3; i <= sc_max + 3; ++i) {
     83 		test_socketcall(i, efault);
     84 		test_socketcall(i, args);
     85 	}
     86 
     87 	puts("+++ exited with 0 +++");
     88 	return 0;
     89 }
     90 
     91 #else
     92 
     93 SKIP_MAIN_UNDEFINED("__NR_socketcall")
     94 
     95 #endif
     96