153 lines
4.3 KiB
C
153 lines
4.3 KiB
C
/*
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* Check decoding of add_key syscall.
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*
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* Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "tests.h"
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#include <asm/unistd.h>
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#include "scno.h"
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#ifdef __NR_add_key
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# include <inttypes.h>
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# include <stdio.h>
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# include <unistd.h>
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void
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print_val_str(const void *ptr, const char *str)
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{
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if (str)
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printf("%s, ", str);
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else
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printf("%p, ", ptr);
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}
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void
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do_add_key(const char *type, const char *type_str, const char *desc,
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const char *desc_str, const char *payload, const char *payload_str,
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size_t plen, int32_t keyring, const char *keyring_str)
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{
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long rc = syscall(__NR_add_key, type, desc, payload, plen, keyring);
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const char *errstr = sprintrc(rc);
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printf("add_key(");
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print_val_str(type, type_str);
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print_val_str(desc, desc_str);
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print_val_str(payload, payload_str);
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printf("%zu, ", plen);
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if (keyring_str)
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printf("%s", keyring_str);
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else
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printf("%d", keyring);
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printf(") = %s\n", errstr);
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}
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int
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main(void)
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{
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static const char unterminated1[] = { '\1', '\2', '\3', '\4', '\5' };
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static const char unterminated2[] = { '\6', '\7', '\10', '\11', '\12' };
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static const char unterminated3[] = { '\16', '\17', '\20', '\21', '\22' };
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char *bogus_type = tail_memdup(unterminated1, sizeof(unterminated1));
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char *bogus_desc = tail_memdup(unterminated2, sizeof(unterminated2));
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char *bogus_payload = tail_memdup(unterminated3, sizeof(unterminated3));
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unsigned i;
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unsigned j;
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unsigned k;
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unsigned l;
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struct {
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const char *type;
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const char *str;
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} types[] = {
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{ ARG_STR(NULL) },
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{ bogus_type + sizeof(unterminated1), NULL },
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{ bogus_type, NULL },
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{ ARG_STR("\20\21\22\23\24") },
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{ ARG_STR("user") },
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};
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struct {
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const char *desc;
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const char *str;
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} descs[] = {
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{ ARG_STR(NULL) },
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{ bogus_desc + sizeof(unterminated2), NULL },
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{ bogus_desc, NULL },
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{ ARG_STR("\25\26\27\30\31") },
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{ ARG_STR("desc") },
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{ "overly long description", _STR("overly long ") "..." },
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};
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struct {
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const char *pload;
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const char *str;
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size_t plen;
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} payloads[] = {
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{ ARG_STR(NULL), 0 },
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{ bogus_payload + sizeof(unterminated3), NULL,
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(size_t) 0xdeadbeefbadc0dedULL },
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{ bogus_payload, _STR(""), 0 },
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{ bogus_payload, _STR("\16\17\20\21\22"), 5 },
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{ bogus_payload, NULL, 10 },
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{ "overly long payload", _STR("overly long ") "...", 15 },
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};
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struct {
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uint32_t keyring;
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const char *str;
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} keyrings[] = {
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{ ARG_STR(0) },
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{ ARG_STR(1234567890) },
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{ ARG_STR(-1234567890) },
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{ -1, "KEY_SPEC_THREAD_KEYRING" },
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};
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for (i = 0; i < ARRAY_SIZE(types); i++)
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for (j = 0; j < ARRAY_SIZE(descs); j++)
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for (k = 0; k < ARRAY_SIZE(payloads); k++)
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for (l = 0; l < ARRAY_SIZE(keyrings); l++)
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do_add_key(types[i].type, types[i].str,
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descs[j].desc, descs[j].str,
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payloads[k].pload,
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payloads[k].str,
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payloads[k].plen,
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keyrings[l].keyring,
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keyrings[l].str);
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puts("+++ exited with 0 +++");
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return 0;
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}
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#else
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SKIP_MAIN_UNDEFINED("__NR_add_key");
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#endif
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