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Test RTLD's new LD_LIBRARY_PATH_FDS variable.

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Test LD_LIBRARY_PATH_FDS by linking a binary that requires a shared
library that isn't in any of the usual search paths.  Ensure this fails
when we don't supply LD_LIBRARY_PATH_FDS or we pass invalid information
in it.  Ensure it works when we pass the correct directory in various
places in the variable.

Approved by:	rwatson (mentor)
MFC after:	3 weeks
Sponsored by:	DARPA/AFRL
This commit is contained in:
Jonathan Anderson 2014-06-20 17:14:59 +00:00
parent 02d3b38e0a
commit 6b22f423cf
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=267679
9 changed files with 374 additions and 0 deletions
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1
etc/mtree/BSD.tests.dist
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@ -90,6 +90,7 @@
..
atf-sh
..
rtld-elf
..
..
sbin

4
libexec/rtld-elf/Makefile
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@ -80,5 +80,9 @@ beforeinstall:
NO_PIE= yes
.if ${MK_TESTS} != "no"
SUBDIR+= tests
.endif
.include <bsd.symver.mk>
.include <bsd.prog.mk>

14
libexec/rtld-elf/tests/Makefile Normal file
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@ -0,0 +1,14 @@
# $FreeBSD$
.include <bsd.own.mk>
TESTSDIR= ${TESTSBASE}/libexec/rtld-elf
SUBDIR+= libpythagoras target
.PATH: ${.CURDIR:H:H:H:H}/tests
ATF_TESTS_C= ld_library_pathfds
CFLAGS+= -DTESTSDIR="\"${TESTSDIR}\""
.include <bsd.test.mk>

220
libexec/rtld-elf/tests/ld_library_pathfds.c Normal file
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@ -0,0 +1,220 @@
/*-
* Copyright 2014 Jonathan Anderson.
* 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.
*
* 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.
*
* $FreeBSD$
*/
#include <atf-c.h>
#include <fcntl.h>
#include <stdio.h>
struct descriptors {
int binary;
int testdir;
int root;
int etc;
int usr;
};
static void setup(struct descriptors *);
static void expect_success(int binary, char *pathfds);
static void expect_missing_library(int binary, char *pathfds);
static void try_to_run(int binary, int expected_exit_status,
char * const *env, const char *expected_out, const char *expected_err);
static int opendir(const char *name);
static int opendirat(int parent, const char *name);
ATF_TC_WITHOUT_HEAD(missing_library);
ATF_TC_BODY(missing_library, tc)
{
struct descriptors files;
setup(&files);
expect_missing_library(files.binary, NULL);
}
ATF_TC_WITHOUT_HEAD(wrong_library_directories);
ATF_TC_BODY(wrong_library_directories, tc)
{
struct descriptors files;
char *pathfds;
setup(&files);
ATF_REQUIRE(
asprintf(&pathfds, "LD_LIBRARY_PATH_FDS=%d", files.etc) > 0);
expect_missing_library(files.binary, pathfds);
}
ATF_TC_WITHOUT_HEAD(bad_library_directories);
ATF_TC_BODY(bad_library_directories, tc)
{
struct descriptors files;
char *pathfds;
setup(&files);
ATF_REQUIRE(asprintf(&pathfds, "::", files.etc) > 0);
expect_missing_library(files.binary, pathfds);
}
ATF_TC_WITHOUT_HEAD(single_library_directory);
ATF_TC_BODY(single_library_directory, tc)
{
struct descriptors files;
char *pathfds;
setup(&files);
ATF_REQUIRE(
asprintf(&pathfds, "LD_LIBRARY_PATH_FDS=%d", files.testdir) > 0);
expect_success(files.binary, pathfds);
}
ATF_TC_WITHOUT_HEAD(first_library_directory);
ATF_TC_BODY(first_library_directory, tc)
{
struct descriptors files;
char *pathfds;
setup(&files);
ATF_REQUIRE(
asprintf(&pathfds, "LD_LIBRARY_PATH_FDS=%d:%d",
files.testdir, files.etc) > 0);
expect_success(files.binary, pathfds);
}
ATF_TC_WITHOUT_HEAD(middle_library_directory);
ATF_TC_BODY(middle_library_directory, tc)
{
struct descriptors files;
char *pathfds;
setup(&files);
ATF_REQUIRE(
asprintf(&pathfds, "LD_LIBRARY_PATH_FDS=%d:%d:%d",
files.root, files.testdir, files.usr) > 0);
expect_success(files.binary, pathfds);
}
ATF_TC_WITHOUT_HEAD(last_library_directory);
ATF_TC_BODY(last_library_directory, tc)
{
struct descriptors files;
char *pathfds;
setup(&files);
ATF_REQUIRE(
asprintf(&pathfds, "LD_LIBRARY_PATH_FDS=%d:%d",
files.root, files.testdir) > 0);
expect_success(files.binary, pathfds);
}
/* Register test cases with ATF. */
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, missing_library);
ATF_TP_ADD_TC(tp, wrong_library_directories);
ATF_TP_ADD_TC(tp, bad_library_directories);
ATF_TP_ADD_TC(tp, single_library_directory);
ATF_TP_ADD_TC(tp, first_library_directory);
ATF_TP_ADD_TC(tp, middle_library_directory);
ATF_TP_ADD_TC(tp, last_library_directory);
return atf_no_error();
}
static void
setup(struct descriptors *dp)
{
ATF_REQUIRE((dp->testdir = opendir(TESTSDIR)) >= 0);
ATF_REQUIRE(
(dp->binary = openat(dp->testdir, "target", O_RDONLY)) >= 0);
ATF_REQUIRE((dp->root = opendir("/")) >= 0);
ATF_REQUIRE((dp->etc = opendirat(dp->root, "etc")) >= 0);
ATF_REQUIRE((dp->usr = opendirat(dp->root, "usr")) >= 0);
}
static void
expect_success(int binary, char *pathfds)
{
char * const env[] = { pathfds, NULL };
try_to_run(binary, 0, env, "the hypotenuse of 3 and 4 is 5\n", "");
}
static void
expect_missing_library(int binary, char *pathfds)
{
char * const env[] = { pathfds, NULL };
try_to_run(binary, 1, env, "",
"Shared object \"libpythagoras.so.0\" not found,"
" required by \"target\"\n");
}
static void
try_to_run(int binary, int exit_status, char * const *env,
const char *expected_out, const char *expected_err)
{
pid_t child = atf_utils_fork();
if (child == 0) {
char * const args[] = { "target", NULL };
fexecve(binary, args, env);
atf_tc_fail("fexecve() failed");
}
atf_utils_wait(child, exit_status, expected_out, expected_err);
}
static int
opendir(const char *name)
{
return open(name, O_RDONLY | O_DIRECTORY);
}
static int
opendirat(int parent, const char *name)
{
return openat(parent, name, O_RDONLY | O_DIRECTORY);
}

13
libexec/rtld-elf/tests/libpythagoras/Makefile Normal file
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@ -0,0 +1,13 @@
# $FreeBSD$
.include <bsd.own.mk>
LIB= pythagoras
SHLIB_MAJOR= 0
LIBDIR= ${TESTSBASE}${TESTSDIR}/libexec/rtld-elf
SHLIBDIR= ${TESTSBASE}${TESTSDIR}/libexec/rtld-elf
SRCS= pythagoras.c
.include <bsd.lib.mk>

42
libexec/rtld-elf/tests/libpythagoras/pythagoras.c Normal file
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@ -0,0 +1,42 @@
/*-
* Copyright 2014 Jonathan Anderson.
* 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.
*
* 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.
*
* $FreeBSD$
*/
#include <errno.h>
#include <math.h>
#include "pythagoras.h"
double
pythagorean_theorem(double a, double b)
{
if (a <= 0 || b <= 0) {
errno = ERANGE;
return (-1.0);
}
return (sqrt(pow(a, 2) + pow(b, 2)));
}

28
libexec/rtld-elf/tests/libpythagoras/pythagoras.h Normal file
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@ -0,0 +1,28 @@
/*-
* Copyright 2014 Jonathan Anderson.
* 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.
*
* 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.
*
* $FreeBSD$
*/
double pythagorean_theorem(double, double);

13
libexec/rtld-elf/tests/target/Makefile Normal file
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@ -0,0 +1,13 @@
# $FreeBSD$
.include <bsd.own.mk>
PROG= target
BINDIR= ${TESTSBASE}${TESTSDIR}/libexec/rtld-elf
CFLAGS+= -I${.CURDIR}/../libpythagoras
LDADD= -L${.OBJDIR}/../libpythagoras -lpythagoras
MAN=
.include <bsd.prog.mk>

39
libexec/rtld-elf/tests/target/target.c Normal file
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@ -0,0 +1,39 @@
/*-
* Copyright 2014 Jonathan Anderson.
* 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.
*
* 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.
*
* $FreeBSD$
*/
#include "pythagoras.h"
#include <stdio.h>
int
main(int argc, char *argv[])
{
float hypotenuse = pythagorean_theorem(3, 4);
printf("the hypotenuse of 3 and 4 is %d\n", (int) hypotenuse);
return 0;
}