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#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <err.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/errno.h>
#include <sys/wait.h>
#include <sys/stat.h>
pid_t child;
char pp_dir1[] = "/tmp/ppdir1.XXXXXX"; /* pledgepathed */
char pp_dir2[] = "/tmp/ppdir2.XXXXXX"; /* not pledgepathed */
char pp_file1[] = "/tmp/ppfile1.XXXXXX"; /* pledgepathed */
char pp_file2[] = "/tmp/ppfile2.XXXXXX"; /* not pledgepathed */
#define PP_SHOULD_SUCCEED(A, B) do { \
if (A) { \
err(1, "%s:%d - %s", __FILE__, __LINE__, B); \
} \
} while (0)
#define PP_SHOULD_FAIL(A, B) do { \
if (A) { \
if (do_pp && errno != ENOENT) \
err(1, "%s:%d - %s", __FILE__, __LINE__, B); \
} else { \
if (do_pp) \
errx(1, "%s:%d - %s worked when it should not " \
"have", __FILE__, __LINE__, B); \
} \
} while(0)
static void
do_pledgepath(void)
{
if (pledgepath(pp_dir1, 0) == -1)
err(1, "%s:%d - pledgepath", __FILE__, __LINE__);
if (pledgepath(pp_file1, 0) == -1)
err(1, "%s:%d - pledgepath", __FILE__, __LINE__);
}
static int
runcompare(int (*func)(int))
{
int ppath = 0, nonppath = 0, status;
pid_t pid = fork();
if (pid == 0) {
exit(func(0));
}
status = 0;
waitpid(pid, &status, 0);
if (WIFEXITED(status))
nonppath = WEXITSTATUS(status);
pid = fork();
if (pid == 0) {
exit(func(1));
}
status = 0;
waitpid(pid, &status, 0);
if (WIFEXITED(status))
ppath = WEXITSTATUS(status);
if (ppath == nonppath) {
printf("[SUCCESS] ppath = %d, nonppath = %d\n", ppath, nonppath);
return 0;
}
printf("[FAIL] ppath = %d, nonppath = %d\n", ppath, nonppath);
return 1;
}
static int
test_open(int do_pp)
{
char filename[256];
int dirfd;
PP_SHOULD_SUCCEED(((dirfd = open("/", O_RDONLY | O_DIRECTORY)) == -1), "open");
if (do_pp) {
printf("testing open\n");
do_pledgepath();
}
PP_SHOULD_SUCCEED((pledge("stdio rpath cpath wpath", NULL) == -1), "pledge");
PP_SHOULD_SUCCEED((open(pp_file1, O_RDWR) == -1), "open");
PP_SHOULD_SUCCEED((open(pp_file1, O_RDWR) == -1), "open");
PP_SHOULD_SUCCEED((openat(dirfd, "etc/hosts", O_RDONLY) == -1), "openat");
PP_SHOULD_FAIL((openat(dirfd, pp_file2, O_RDWR) == -1), "openat");
PP_SHOULD_FAIL((open(pp_file2, O_RDWR) == -1), "open");
(void) snprintf(filename, sizeof(filename), "%s/%s", pp_dir1, "newfile");
PP_SHOULD_SUCCEED((open(filename, O_RDWR|O_CREAT) == -1), "open");
(void) snprintf(filename, sizeof(filename), "%s/%s", pp_dir2, "newfile");
PP_SHOULD_FAIL((open(filename, O_RDWR|O_CREAT) == -1), "open");
return 0;
}
static int
test_unlink(int do_pp)
{
char filename1[256];
char filename2[256];
char filename3[] = "/tmp/nukeme.XXXXXX";
int fd;
(void) snprintf(filename1, sizeof(filename1), "%s/%s", pp_dir1,
"nukeme");
(void) snprintf(filename2, sizeof(filename2), "%s/%s", pp_dir2,
"nukeme");
PP_SHOULD_SUCCEED((open(filename1, O_RDWR|O_CREAT) == -1), "open");
PP_SHOULD_SUCCEED((open(filename2, O_RDWR|O_CREAT) == -1), "open");
if ((fd = mkstemp(filename3)) == -1)
err(1, "%s:%d - mkstemp", __FILE__, __LINE__);
if (do_pp) {
printf("testing unlink\n");
do_pledgepath();
}
PP_SHOULD_SUCCEED((pledge("stdio rpath cpath wpath", NULL) == -1),
"pledge");
PP_SHOULD_SUCCEED((unlink(filename1) == -1), "unlink");
PP_SHOULD_FAIL((unlink(filename2) == -1), "unlink");
PP_SHOULD_FAIL((unlink(filename3) == -1), "unlink");
return 0;
}
static int
test_link(int do_pp)
{
char filename[256];
char filename2[256];
if (do_pp) {
printf("testing link\n");
do_pledgepath();
}
PP_SHOULD_SUCCEED((pledge("stdio rpath cpath wpath", NULL) == -1),
"pledge");
(void) snprintf(filename, sizeof(filename), "%s/%s", pp_dir1,
"linkpp1");
(void) snprintf(filename2, sizeof(filename2), "%s/%s", pp_dir2,
"linkpp2");
unlink(filename);
unlink(filename2);
PP_SHOULD_SUCCEED((link(pp_file1, filename) == -1), "link");
unlink(filename);
PP_SHOULD_FAIL((link(pp_file2, filename) == -1), "link");
PP_SHOULD_FAIL((link(pp_file1, filename2) == -1), "link");
return 0;
}
static int
test_chdir(int do_pp)
{
if (do_pp) {
printf("testing chdir\n");
do_pledgepath();
}
PP_SHOULD_SUCCEED((pledge("stdio rpath", NULL) == -1), "pledge");
PP_SHOULD_SUCCEED((chdir(pp_dir1) == -1), "chdir");
PP_SHOULD_FAIL((chdir(pp_dir2) == -1), "chdir");
return 0;
}
static int
test_rename(int do_pp)
{
char filename1[256];
char filename2[256];
char rfilename1[256];
char rfilename2[256];
int dirfd1, dirfd2;
if ((dirfd1 = open(pp_dir1, O_RDONLY | O_DIRECTORY)) == -1)
err(1, "%s:%d - open of dir1", __FILE__, __LINE__);
if ((dirfd2 = open(pp_dir2, O_RDONLY | O_DIRECTORY)) == -1)
err(1, "%s:%d - open of dir2", __FILE__, __LINE__);
(void) snprintf(filename1, sizeof(filename1), "%s/%s", pp_dir1,
"file1");
PP_SHOULD_SUCCEED((open(filename1, O_RDWR|O_CREAT) == -1), "open");
(void) snprintf(filename2, sizeof(filename2), "%s/%s", pp_dir2,
"file2");
PP_SHOULD_SUCCEED((open(filename2, O_RDWR|O_CREAT) == -1), "open");
(void) snprintf(rfilename1, sizeof(rfilename1), "%s/%s", pp_dir1,
"rfile1");
(void) snprintf(rfilename2, sizeof(rfilename2), "%s/%s", pp_dir2,
"rfile2");
if (do_pp) {
printf("testing rename\n");
do_pledgepath();
}
PP_SHOULD_SUCCEED((pledge("stdio rpath wpath cpath", NULL) == -1),
"pledge");
PP_SHOULD_SUCCEED((rename(filename1, rfilename1) == -1), "rename");
PP_SHOULD_FAIL((rename(filename2, rfilename2) == -1), "rename");
PP_SHOULD_SUCCEED((open(filename1, O_RDWR|O_CREAT) == -1), "open");
PP_SHOULD_FAIL((rename(filename1, rfilename2) == -1), "rename");
PP_SHOULD_SUCCEED((open(filename1, O_RDWR|O_CREAT) == -1), "open");
PP_SHOULD_FAIL((rename(filename1, pp_file2) == -1), "rename");
PP_SHOULD_SUCCEED((open(filename1, O_RDWR|O_CREAT) == -1), "open");
PP_SHOULD_SUCCEED((renameat(dirfd1, "file1", dirfd2, "rfile2") == -1),
"renameat");
PP_SHOULD_SUCCEED((open(filename1, O_RDWR|O_CREAT) == -1), "open");
PP_SHOULD_FAIL((renameat(dirfd1, "file1", dirfd2, rfilename2) == -1),
"renameat");
return (0);
}
static int
test_access(int do_pp)
{
if (do_pp) {
printf("testing access\n");
do_pledgepath();
}
PP_SHOULD_SUCCEED((pledge("stdio rpath", NULL) == -1), "pledge");
PP_SHOULD_SUCCEED((access(pp_file1, R_OK) == -1), "access");
PP_SHOULD_FAIL((access(pp_file2, R_OK) == -1), "access");
PP_SHOULD_SUCCEED((access(pp_dir1, R_OK) == -1), "access");
PP_SHOULD_FAIL((access(pp_dir2, R_OK) == -1), "access");
return 0;
}
static int
test_chflags(int do_pp)
{
if (do_pp) {
printf("testing chflags\n");
do_pledgepath();
}
PP_SHOULD_SUCCEED((pledge("stdio rpath", NULL) == -1), "pledge");
PP_SHOULD_SUCCEED((chflags(pp_file1, UF_NODUMP) == -1), "chflags");
PP_SHOULD_FAIL((chflags(pp_file2, UF_NODUMP) == -1), "chflags");
return 0;
}
int
main (int argc, char *argv[])
{
int fd1, fd2, failures = 0;
PP_SHOULD_SUCCEED((mkdtemp(pp_dir1) == NULL), "mkdtmp");
PP_SHOULD_SUCCEED((mkdtemp(pp_dir2) == NULL), "mkdtmp");
PP_SHOULD_SUCCEED(((fd1 = mkstemp(pp_file1)) == -1), "mkstemp");
close(fd1);
PP_SHOULD_SUCCEED(((fd2 = mkstemp(pp_file2)) == -1), "mkstemp");
close(fd2);
failures += runcompare(test_open);
failures += runcompare(test_unlink);
failures += runcompare(test_link);
failures += runcompare(test_chdir);
failures += runcompare(test_rename);
failures += runcompare(test_access);
failures += runcompare(test_chflags);
exit(failures);
}
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