ATF_TC_BODY(makecn, tc)
{
struct componentname *cn;
char pathstr[MAXPATHLEN] = TESTFILE;
struct vnode *vp;
extern struct vnode *rumpns_rootvnode;
rump_init();
/*
* Strategy is to create a componentname, edit the passed
* string, and then do a lookup with the componentname.
*/
RL(rump_sys_mkdir("/" TESTFILE, 0777));
/* need stable lwp for componentname */
RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG));
/* try it once with the right path */
cn = rump_pub_makecn(RUMP_NAMEI_LOOKUP, 0, pathstr, strlen(pathstr),
rump_pub_cred_create(0, 0, 0, NULL), rump_pub_lwproc_curlwp());
RZ(RUMP_VOP_LOOKUP(rumpns_rootvnode, &vp, cn));
rump_pub_freecn(cn, RUMPCN_FREECRED);
/* and then with modification-in-the-middle */
cn = rump_pub_makecn(RUMP_NAMEI_LOOKUP, 0, pathstr, strlen(pathstr),
rump_pub_cred_create(0, 0, 0, NULL), rump_pub_lwproc_curlwp());
strcpy(pathstr, "/muuta");
RZ(RUMP_VOP_LOOKUP(rumpns_rootvnode, &vp, cn));
rump_pub_freecn(cn, RUMPCN_FREECRED);
}
ATF_TC_BODY(lwps, tc)
{
struct lwp *l[LOOPS];
pid_t mypid;
struct lwp *l_orig;
int i;
rump_init();
RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG));
mypid = rump_sys_getpid();
RL(rump_sys_setuid(375));
l_orig = rump_pub_lwproc_curlwp();
for (i = 0; i < LOOPS; i++) {
mypid = rump_sys_getpid();
ATF_REQUIRE(mypid != -1 && mypid != 0);
RZ(rump_pub_lwproc_newlwp(mypid));
l[i] = rump_pub_lwproc_curlwp();
ATF_REQUIRE_EQ(rump_sys_getuid(), 375);
}
rump_pub_lwproc_switch(l_orig);
rump_pub_lwproc_releaselwp();
for (i = 0; i < LOOPS; i++) {
rump_pub_lwproc_switch(l[i]);
ATF_REQUIRE_EQ(rump_sys_getpid(), mypid);
ATF_REQUIRE_EQ(rump_sys_getuid(), 375);
rump_pub_lwproc_releaselwp();
ATF_REQUIRE_EQ(rump_sys_getpid(), 1);
ATF_REQUIRE_EQ(rump_sys_getuid(), 0);
}
ATF_REQUIRE_EQ(rump_pub_lwproc_newlwp(mypid), ESRCH);
}
ATF_TC_BODY(proccreds, tc)
{
struct lwp *l1, *l2;
rump_init();
RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG));
l1 = rump_pub_lwproc_curlwp();
RZ(rump_pub_lwproc_newlwp(rump_sys_getpid()));
RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG));
l2 = rump_pub_lwproc_curlwp();
RL(rump_sys_setuid(22));
ATF_REQUIRE_EQ(rump_sys_getuid(), 22);
rump_pub_lwproc_switch(l1);
ATF_REQUIRE_EQ(rump_sys_getuid(), 0); /* from parent, proc0 */
RL(rump_sys_setuid(11));
ATF_REQUIRE_EQ(rump_sys_getuid(), 11);
rump_pub_lwproc_switch(l2);
ATF_REQUIRE_EQ(rump_sys_getuid(), 22);
rump_pub_lwproc_newlwp(rump_sys_getpid());
ATF_REQUIRE_EQ(rump_sys_getuid(), 22);
}
ATF_TC_BODY(rfork, tc)
{
struct stat sb;
struct lwp *l, *l2;
int fd;
RZ(rump_init());
ATF_REQUIRE_EQ(rump_pub_lwproc_rfork(RUMP_RFFDG|RUMP_RFCFDG), EINVAL);
RZ(rump_pub_lwproc_rfork(0));
l = rump_pub_lwproc_curlwp();
RL(fd = rump_sys_open("/file", O_RDWR | O_CREAT, 0777));
/* ok, first check rfork(RUMP_RFCFDG) does *not* preserve fd's */
RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG));
ATF_REQUIRE_ERRNO(EBADF, rump_sys_write(fd, &fd, sizeof(fd)) == -1);
/* then check that rfork(0) does */
rump_pub_lwproc_switch(l);
RZ(rump_pub_lwproc_rfork(0));
ATF_REQUIRE_EQ(rump_sys_write(fd, &fd, sizeof(fd)), sizeof(fd));
RL(rump_sys_fstat(fd, &sb));
l2 = rump_pub_lwproc_curlwp();
/*
* check that the shared fd table is really shared by
* closing fd in parent
*/
rump_pub_lwproc_switch(l);
RL(rump_sys_close(fd));
rump_pub_lwproc_switch(l2);
ATF_REQUIRE_ERRNO(EBADF, rump_sys_fstat(fd, &sb) == -1);
/* redo, this time copying the fd table instead of sharing it */
rump_pub_lwproc_releaselwp();
rump_pub_lwproc_switch(l);
RL(fd = rump_sys_open("/file", O_RDWR, 0777));
RZ(rump_pub_lwproc_rfork(RUMP_RFFDG));
ATF_REQUIRE_EQ(rump_sys_write(fd, &fd, sizeof(fd)), sizeof(fd));
RL(rump_sys_fstat(fd, &sb));
l2 = rump_pub_lwproc_curlwp();
/* check that the fd table is copied */
rump_pub_lwproc_switch(l);
RL(rump_sys_close(fd));
rump_pub_lwproc_switch(l2);
RL(rump_sys_fstat(fd, &sb));
ATF_REQUIRE_EQ(sb.st_size, sizeof(fd));
}
static void
fcntl_lock(const atf_tc_t *tc, const char *mp)
{
int fd, fd2;
struct flock l;
struct lwp *lwp1, *lwp2;
FSTEST_ENTER();
l.l_pid = 0;
l.l_start = l.l_len = 1024;
l.l_type = F_RDLCK | F_WRLCK;
l.l_whence = SEEK_END;
lwp1 = rump_pub_lwproc_curlwp();
RL(fd = rump_sys_open(TESTFILE, O_RDWR | O_CREAT, 0755));
RL(rump_sys_ftruncate(fd, 8192));
/* PR kern/43321 */
if (FSTYPE_ZFS(tc))
atf_tc_expect_fail("PR kern/47656: Test known to be broken");
RL(rump_sys_fcntl(fd, F_SETLK, &l));
/* Next, we fork and try to lock the same area */
RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG));
lwp2 = rump_pub_lwproc_curlwp();
RL(fd2 = rump_sys_open(TESTFILE, O_RDWR, 0));
ATF_REQUIRE_ERRNO(EAGAIN, rump_sys_fcntl(fd2, F_SETLK, &l));
/* Switch back and unlock... */
rump_pub_lwproc_switch(lwp1);
l.l_type = F_UNLCK;
RL(rump_sys_fcntl(fd, F_SETLK, &l));
/* ... and try to lock again */
rump_pub_lwproc_switch(lwp2);
l.l_type = F_RDLCK | F_WRLCK;
RL(rump_sys_fcntl(fd2, F_SETLK, &l));
RL(rump_sys_close(fd2));
rump_pub_lwproc_releaselwp();
RL(rump_sys_close(fd));
FSTEST_EXIT();
}
ATF_TC_BODY(makelwp, tc)
{
struct lwp *l;
pid_t pid;
rump_init();
RZ(rump_pub_lwproc_newlwp(0));
ATF_REQUIRE_EQ(rump_pub_lwproc_newlwp(37), ESRCH);
l = rump_pub_lwproc_curlwp();
RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG));
ATF_REQUIRE(rump_pub_lwproc_curlwp() != l);
l = rump_pub_lwproc_curlwp();
RZ(rump_pub_lwproc_newlwp(rump_sys_getpid()));
ATF_REQUIRE(rump_pub_lwproc_curlwp() != l);
pid = rump_sys_getpid();
ATF_REQUIRE(pid != -1 && pid != 0);
}
ATF_TC_BODY(nullswitch, tc)
{
struct lwp *l;
rump_init();
RZ(rump_pub_lwproc_newlwp(0));
l = rump_pub_lwproc_curlwp();
rump_pub_lwproc_switch(NULL);
/* if remains LP_RUNNING, next call will panic */
rump_pub_lwproc_switch(l);
}
static int
precall(struct ukfs *ukfs, struct lwp **curlwp)
{
/* save previous. ensure start from pristine context */
*curlwp = rump_pub_lwproc_curlwp();
if (*curlwp)
rump_pub_lwproc_switch(ukfs->ukfs_lwp);
rump_pub_lwproc_rfork(RUMP_RFCFDG);
if (rump_sys_chroot(ukfs->ukfs_mountpath) == -1)
return errno;
if (rump_sys_chdir(ukfs->ukfs_cwd) == -1)
return errno;
return 0;
}
static void
fcntl_getlock_pids(const atf_tc_t *tc, const char *mp)
{
/* test non-overlaping ranges */
struct flock expect[4];
const struct flock lock[4] = {
{ 0, 2, 0, F_WRLCK, SEEK_SET },
{ 2, 1, 0, F_WRLCK, SEEK_SET },
{ 7, 5, 0, F_WRLCK, SEEK_SET },
{ 4, 3, 0, F_WRLCK, SEEK_SET },
};
/* Add extra element to make sure recursion does't stop at array end */
struct flock result[5];
/* Add 5th process */
int fd[5];
pid_t pid[5];
struct lwp *lwp[5];
unsigned int i, j;
const off_t sz = 8192;
int omode = 0755;
int oflags = O_RDWR | O_CREAT;
memcpy(expect, lock, sizeof(lock));
FSTEST_ENTER();
/*
* First, we create 4 processes and let each lock a range of the
* file. Note that the third and fourth processes lock in
* "reverse" order, i.e. the greater pid locks a range before
* the lesser pid.
* Then, we create 5th process which doesn't lock anything.
*/
for (i = 0; i < __arraycount(lwp); i++) {
RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG));
lwp[i] = rump_pub_lwproc_curlwp();
pid[i] = rump_sys_getpid();
RL(fd[i] = rump_sys_open(TESTFILE, oflags, omode));
oflags = O_RDWR;
omode = 0;
RL(rump_sys_ftruncate(fd[i], sz));
if (FSTYPE_ZFS(tc))
atf_tc_expect_fail("PR kern/47656: Test known to be "
"broken");
if (i < __arraycount(lock)) {
RL(rump_sys_fcntl(fd[i], F_SETLK, &lock[i]));
expect[i].l_pid = pid[i];
}
}
qsort(expect, __arraycount(expect), sizeof(expect[0]), &flock_compare);
/*
* In the context of each process, recursively find all locks
* that would block the current process. Processes 1-4 don't
* see their own lock, we insert it to simplify checks.
* Process 5 sees all 4 locks.
*/
for (i = 0; i < __arraycount(lwp); i++) {
unsigned int nlocks;
rump_pub_lwproc_switch(lwp[i]);
memset(result, 0, sizeof(result));
nlocks = fcntl_getlocks(fd[i], 0, sz,
result, result + __arraycount(result));
if (i < __arraycount(lock)) {
ATF_REQUIRE(nlocks < __arraycount(result));
result[nlocks] = lock[i];
result[nlocks].l_pid = pid[i];
nlocks++;
}
ATF_CHECK_EQ(nlocks, __arraycount(expect));
qsort(result, nlocks, sizeof(result[0]), &flock_compare);
for (j = 0; j < nlocks; j++) {
ATF_CHECK_EQ(result[j].l_start, expect[j].l_start );
ATF_CHECK_EQ(result[j].l_len, expect[j].l_len );
ATF_CHECK_EQ(result[j].l_pid, expect[j].l_pid );
ATF_CHECK_EQ(result[j].l_type, expect[j].l_type );
ATF_CHECK_EQ(result[j].l_whence, expect[j].l_whence);
}
}
/*
* Release processes. This also releases the fds and locks
* making fs unmount possible
*/
for (i = 0; i < __arraycount(lwp); i++) {
rump_pub_lwproc_switch(lwp[i]);
rump_pub_lwproc_releaselwp();
}
FSTEST_EXIT();
}
ATF_TC_BODY(nolwp, tc)
{
rump_init();
ATF_REQUIRE_EQ(rump_pub_lwproc_curlwp(), NULL);
}