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torture3: add LOCAL-G-LOCK6 test

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This is a regression test for bug #13195.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13195

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
This commit is contained in:
Stefan Metzmacher 2017-12-20 09:44:40 +01:00 committed by Volker Lendecke
parent 23a62c9f83
commit 1b1f9bfd29
5 changed files with 156 additions and 0 deletions
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1
selftest/knownfail.d/local-g-lock6 Normal file
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@ -0,0 +1 @@
^samba3.smbtorture_s3.LOCAL-G-LOCK6.smbtorture

1
source3/selftest/tests.py
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@ -158,6 +158,7 @@ local_tests = [
"LOCAL-G-LOCK3",
"LOCAL-G-LOCK4",
"LOCAL-G-LOCK5",
"LOCAL-G-LOCK6",
"LOCAL-NAMEMAP-CACHE1",
"LOCAL-hex_encode_buf",
"LOCAL-remove_duplicate_addrs2"]

1
source3/torture/proto.h
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@ -132,6 +132,7 @@ bool run_g_lock2(int dummy);
bool run_g_lock3(int dummy);
bool run_g_lock4(int dummy);
bool run_g_lock5(int dummy);
bool run_g_lock6(int dummy);
bool run_g_lock_ping_pong(int dummy);
bool run_local_namemap_cache1(int dummy);

152
source3/torture/test_g_lock.c
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@ -695,6 +695,158 @@ bool run_g_lock5(int dummy)
return true;
}
struct lock6_parser_state {
size_t num_locks;
};
static void lock6_parser(const struct g_lock_rec *locks,
size_t num_locks,
const uint8_t *data,
size_t datalen,
void *private_data)
{
struct lock6_parser_state *state = private_data;
state->num_locks = num_locks;
}
/*
* Test cleanup with contention and stale locks
*/
bool run_g_lock6(int dummy)
{
struct tevent_context *ev = NULL;
struct messaging_context *msg = NULL;
struct g_lock_ctx *ctx = NULL;
const char *lockname = "lock6";
pid_t child;
int exit_pipe[2], ready_pipe[2];
NTSTATUS status;
size_t i, nprocs;
int ret;
bool ok;
ssize_t nread;
char c;
if ((pipe(exit_pipe) != 0) || (pipe(ready_pipe) != 0)) {
perror("pipe failed");
return false;
}
ok = get_g_lock_ctx(talloc_tos(), &ev, &msg, &ctx);
if (!ok) {
fprintf(stderr, "get_g_lock_ctx failed");
return false;
}
nprocs = 2;
for (i=0; i<nprocs; i++) {
child = fork();
if (child == -1) {
perror("fork failed");
return false;
}
if (child == 0) {
TALLOC_FREE(ctx);
status = reinit_after_fork(msg, ev, false, "");
if (!NT_STATUS_IS_OK(status)) {
fprintf(stderr, "reinit_after_fork failed: %s\n",
nt_errstr(status));
exit(1);
}
close(ready_pipe[0]);
close(exit_pipe[1]);
ok = get_g_lock_ctx(talloc_tos(), &ev, &msg, &ctx);
if (!ok) {
fprintf(stderr, "get_g_lock_ctx failed");
exit(1);
}
status = g_lock_lock(ctx, lockname, G_LOCK_READ,
(struct timeval) { .tv_sec = 1 });
if (!NT_STATUS_IS_OK(status)) {
fprintf(stderr,
"child g_lock_lock failed %s\n",
nt_errstr(status));
exit(1);
}
if (i == 0) {
exit(0);
}
close(ready_pipe[1]);
nread = sys_read(exit_pipe[0], &c, sizeof(c));
if (nread != 0) {
fprintf(stderr, "sys_read returned %zu (%s)\n",
nread, strerror(errno));
exit(1);
}
exit(0);
}
}
close(ready_pipe[1]);
nread = sys_read(ready_pipe[0], &c, sizeof(c));
if (nread != 0) {
fprintf(stderr, "sys_read returned %zd (%s)\n",
nread, strerror(errno));
return false;
}
{
int child_status;
ret = waitpid(-1, &child_status, 0);
if (ret == -1) {
perror("waitpid failed");
return false;
}
}
{
struct lock6_parser_state state;
status = g_lock_dump(ctx, lockname, lock6_parser, &state);
if (!NT_STATUS_IS_OK(status)) {
fprintf(stderr, "g_lock_dump returned %s\n",
nt_errstr(status));
return false;
}
if (state.num_locks != nprocs) {
fprintf(stderr, "nlocks=%zu, expected %zu\n",
state.num_locks, nprocs);
return false;
}
status = g_lock_lock(ctx, lockname, G_LOCK_WRITE,
(struct timeval) { .tv_sec = 1 });
if (!NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
fprintf(stderr, "g_lock_lock should have failed with %s - %s\n",
nt_errstr(NT_STATUS_IO_TIMEOUT),
nt_errstr(status));
return false;
}
}
close(exit_pipe[1]);
{
int child_status;
ret = waitpid(-1, &child_status, 0);
if (ret == -1) {
perror("waitpid failed");
return false;
}
}
return true;
}
extern int torture_numops;
extern int torture_nprocs;

1
source3/torture/torture.c
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@ -11585,6 +11585,7 @@ static struct {
{ "LOCAL-G-LOCK3", run_g_lock3, 0 },
{ "LOCAL-G-LOCK4", run_g_lock4, 0 },
{ "LOCAL-G-LOCK5", run_g_lock5, 0 },
{ "LOCAL-G-LOCK6", run_g_lock6, 0 },
{ "LOCAL-G-LOCK-PING-PONG", run_g_lock_ping_pong, 0 },
{ "LOCAL-CANONICALIZE-PATH", run_local_canonicalize_path, 0 },
{ "LOCAL-NAMEMAP-CACHE1", run_local_namemap_cache1, 0 },