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authormidipix <writeonce@midipix.org>2018-03-19 03:25:40 +0000
committermidipix <writeonce@midipix.org>2018-03-20 23:27:58 -0400
commit99ec4d21eec1ff5c8fb2d4b09402413fb084b8fa (patch)
tree4a6ef71ef4d2d91b52cb55023fe9f1cc0a336e7a /src
parente7235fb6a483c1a4f4201b578957e1f62cd6efb7 (diff)
downloadntapi-99ec4d21eec1ff5c8fb2d4b09402413fb084b8fa.tar.bz2
ntapi-99ec4d21eec1ff5c8fb2d4b09402413fb084b8fa.tar.xz
internals: cache the process's token user sid.
Diffstat (limited to 'src')
-rw-r--r--src/internal/ntapi.c15
-rw-r--r--src/internal/ntapi_impl.h2
2 files changed, 17 insertions, 0 deletions
diff --git a/src/internal/ntapi.c b/src/internal/ntapi.c
index 2b4a525..88f3f14 100644
--- a/src/internal/ntapi.c
+++ b/src/internal/ntapi.c
@@ -93,6 +93,7 @@ static int32_t __fastcall __ntapi_init_once(ntapi_vtbl ** pvtbl)
int32_t status;
void * hntdll;
size_t block_size;
+ size_t buf[64];
nt_oa oa;
nt_cid cid;
ntapi_zw_allocate_virtual_memory * pfn_zw_allocate_virtual_memory;
@@ -477,6 +478,20 @@ static int32_t __fastcall __ntapi_init_once(ntapi_vtbl ** pvtbl)
internals->htoken,
NT_SE_CREATE_SYMBOLIC_LINK_PRIVILEGE);
+ /* sid */
+ if ((status = __ntapi->zw_query_information_token(
+ internals->htoken,
+ NT_TOKEN_USER,
+ buf,sizeof(buf),
+ &block_size)))
+ return status;
+
+ internals->sid = (nt_sid *)&internals->sid_buffer;
+
+ __ntapi->tt_sid_copy(
+ internals->sid,
+ ((nt_sid_and_attributes *)buf)->sid);
+
/* done */
*pvtbl = &___ntapi_shadow;
at_locked_inc(&__ntapi_init_idx);
diff --git a/src/internal/ntapi_impl.h b/src/internal/ntapi_impl.h
index 791dbc1..6021a48 100644
--- a/src/internal/ntapi_impl.h
+++ b/src/internal/ntapi_impl.h
@@ -82,6 +82,8 @@ typedef struct __attr_ptr_size_aligned__ _ntapi_internals {
nt_port_name * subsystem;
nt_security_descriptor seq_desc;
nt_security_quality_of_service seq_qos;
+ nt_sid_any sid_buffer;
+ nt_sid * sid;
void * hprocess;
void * htoken;
void * hport_tty_session;