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winbindd: Use idmap cache in xids2sids

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Typically smbd should have looked into the idmap cache itself before
contacting winbind. But winbind has internal users of this API (getpwuid
and getgrgid for example), and those need to use the cache too.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=12484

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Uri Simchoni <uri@samba.org>

Autobuild-User(master): Uri Simchoni <uri@samba.org>
Autobuild-Date(master): Wed Dec 28 00:06:41 CET 2016 on sn-devel-144
This commit is contained in:
Volker Lendecke 2016-12-27 10:19:17 +00:00 committed by Uri Simchoni
parent f7f49a2354
commit 91d027554e
1 changed files with 26 additions and 0 deletions
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26
source3/winbindd/wb_xids2sids.c
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@ -353,6 +353,32 @@ struct tevent_req *wb_xids2sids_send(TALLOC_CTX *mem_ctx,
return tevent_req_post(req, ev);
}
if (winbindd_use_idmap_cache()) {
uint32_t i;
for (i=0; i<num_xids; i++) {
struct dom_sid sid;
bool ok, expired;
switch (xids[i].type) {
case ID_TYPE_UID:
ok = idmap_cache_find_uid2sid(
xids[i].id, &sid, &expired);
break;
case ID_TYPE_GID:
ok = idmap_cache_find_gid2sid(
xids[i].id, &sid, &expired);
break;
default:
ok = false;
}
if (ok && !expired) {
sid_copy(&state->sids[i], &sid);
}
}
}
wb_xids2sids_init_dom_maps();
num_domains = talloc_array_length(dom_maps);