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s3/smbd: add "smbd:find async delay usec" to SMB2 FIND

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This is just a hack for selftest that will be used in subsequent commits
for torturing compound find requests.

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
This commit is contained in:
Ralph Boehme 2017-01-11 15:36:38 +01:00 committed by Jeremy Allison
parent d99bd1c48b
commit 9c95eca0f4
1 changed files with 66 additions and 0 deletions
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66
source3/smbd/smb2_query_directory.c
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@ -204,12 +204,15 @@ static NTSTATUS fetch_write_time_recv(struct tevent_req *req);
struct smbd_smb2_query_directory_state {
struct tevent_context *ev;
struct smbd_smb2_request *smb2req;
uint64_t async_count;
uint32_t find_async_delay_usec;
DATA_BLOB out_output_buffer;
};
static void smb2_query_directory_fetch_write_time_done(struct tevent_req *subreq);
static void smb2_query_directory_waited(struct tevent_req *subreq);
static struct tevent_req *smbd_smb2_query_directory_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
@ -249,6 +252,7 @@ static struct tevent_req *smbd_smb2_query_directory_send(TALLOC_CTX *mem_ctx,
if (req == NULL) {
return NULL;
}
state->ev = ev;
state->smb2req = smb2req;
state->out_output_buffer = data_blob_null;
@ -488,6 +492,13 @@ static struct tevent_req *smbd_smb2_query_directory_send(TALLOC_CTX *mem_ctx,
smb2_request_set_async_internal(smb2req, true);
}
/*
* This gets set in autobuild for some tests
*/
state->find_async_delay_usec = lp_parm_ulong(SNUM(conn), "smbd",
"find async delay usec",
0);
while (true) {
bool got_exact_match = false;
int space_remaining = in_output_buffer_length - off;
@ -577,6 +588,30 @@ last_entry_done:
state->async_count);
return req;
}
if (state->find_async_delay_usec > 0) {
struct timeval tv;
struct tevent_req *subreq = NULL;
/*
* Should we only set async_internal
* if we're not the last request in
* a compound chain?
*/
smb2_request_set_async_internal(smb2req, true);
tv = timeval_current_ofs(0, state->find_async_delay_usec);
subreq = tevent_wakeup_send(state, ev, tv);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
tevent_req_set_callback(subreq,
smb2_query_directory_waited,
req);
return req;
}
tevent_req_done(req);
return tevent_req_post(req, ev);
}
@ -605,10 +640,41 @@ static void smb2_query_directory_fetch_write_time_done(struct tevent_req *subreq
return;
}
if (state->find_async_delay_usec > 0) {
struct timeval tv;
tv = timeval_current_ofs(0, state->find_async_delay_usec);
subreq = tevent_wakeup_send(state, state->ev, tv);
if (tevent_req_nomem(subreq, req)) {
tevent_req_post(req, state->ev);
return;
}
tevent_req_set_callback(subreq,
smb2_query_directory_waited,
req);
return;
}
tevent_req_done(req);
return;
}
static void smb2_query_directory_waited(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
bool ok;
ok = tevent_wakeup_recv(subreq);
TALLOC_FREE(subreq);
if (!ok) {
tevent_req_oom(req);
return;
}
tevent_req_done(req);
}
static NTSTATUS smbd_smb2_query_directory_recv(struct tevent_req *req,
TALLOC_CTX *mem_ctx,
DATA_BLOB *out_output_buffer)