daemon initialization: establish SEH frames for the daemon and internal thread.

5 files changed, 84 insertions, 3 deletions

diff --git a/src/daemon/ntapi_dsr_init.c b/src/daemon/ntapi_dsr_init.c
index 317a421..b54131e 100644
--- a/src/daemon/ntapi_dsr_init.c
+++ b/src/daemon/ntapi_dsr_init.c
@@ -12,6 +12,8 @@
 #include <ntapi/ntapi.h>
 #include "ntapi_impl.h"
 
+int32_t __ntapi_tt_seh_frame(void *, void *, void *, int32_t (*)(nt_daemon_params *));
+
 static int32_t __stdcall __ntapi_dsr_once(nt_daemon_params * params);
 
 int32_t __stdcall __ntapi_dsr_init(nt_daemon_params * params)
@@ -139,7 +141,7 @@ int32_t __stdcall __ntapi_dsr_init(nt_daemon_params * params)
 
 
 /* __ntapi_dsr_start executes in the daemon's dedicated thread */
-int32_t __stdcall __ntapi_dsr_start_impl(nt_daemon_params * params)
+static int32_t __ntapi_dsr_start_impl(nt_daemon_params * params)
 {
 	int32_t status;
 	void *	ctx;
@@ -161,7 +163,7 @@ int32_t __stdcall __ntapi_dsr_start_impl(nt_daemon_params * params)
 	return NT_STATUS_SUCCESS;
 }
 
-int32_t __stdcall __ntapi_dsr_start(nt_daemon_params * params)
+static int32_t __ntapi_dsr_start_routine(nt_daemon_params * params)
 {
 	at_store_32(
 		&params->exit_code_daemon_loop,
@@ -172,6 +174,12 @@ int32_t __stdcall __ntapi_dsr_start(nt_daemon_params * params)
 		__ntapi_dsr_start_impl(params));
 }
 
+int32_t __stdcall __ntapi_dsr_start(nt_daemon_params * params)
+{
+	return __ntapi_tt_seh_frame(
+		params,0,0,
+		__ntapi_dsr_start_routine);
+}
 
 /* __ntapi_dsr_once executes in the daemon's dedicated thread */
 static int32_t __stdcall __ntapi_dsr_once(nt_daemon_params * params)
diff --git a/src/daemon/ntapi_dsr_internal_connection.c b/src/daemon/ntapi_dsr_internal_connection.c
index 2d6e39f..109ea43 100644
--- a/src/daemon/ntapi_dsr_internal_connection.c
+++ b/src/daemon/ntapi_dsr_internal_connection.c
@@ -12,6 +12,8 @@
 #include <ntapi/ntapi.h>
 #include "ntapi_impl.h"
 
+int32_t __ntapi_tt_seh_frame(void *, void *, void *, int32_t (*)(nt_daemon_params *));
+
 static int32_t __stdcall __ntapi_dsr_internal_client_connect_fail(
 	nt_daemon_params *	params,
 	int32_t			status)
@@ -82,7 +84,7 @@ int32_t __stdcall __ntapi_dsr_connect_internal_client(nt_daemon_params * params)
 
 
 /* __ntapi_dsr_internal_client_connect executes in its own temporary thread */
-int32_t __stdcall __ntapi_dsr_internal_client_connect(nt_daemon_params * params)
+static int32_t __ntapi_dsr_internal_client_connect_impl(nt_daemon_params * params)
 {
 	int32_t				status;
 	nt_unicode_string		server_name;
@@ -143,3 +145,10 @@ int32_t __stdcall __ntapi_dsr_internal_client_connect(nt_daemon_params * params)
 		NT_CURRENT_THREAD_HANDLE,
 		status);
 }
+
+int32_t __stdcall __ntapi_dsr_internal_client_connect(nt_daemon_params * params)
+{
+	return __ntapi_tt_seh_frame(
+		params,0,0,
+		__ntapi_dsr_internal_client_connect_impl);
+}
\ No newline at end of file
diff --git a/src/seh/nt32/ntapi_tt_seh_frame.s b/src/seh/nt32/ntapi_tt_seh_frame.s
new file mode 100644
index 0000000..d301217
--- /dev/null
+++ b/src/seh/nt32/ntapi_tt_seh_frame.s
@@ -0,0 +1,21 @@
+##########################################################
+##  ntapi: Native API core library                      ##
+##  Copyright (C) 2013--2017  Z. Gilboa                 ##
+##  Released under GPLv2 and GPLv3; see COPYING.NTAPI.  ##
+##########################################################
+
+.section .text
+
+.global ___ntapi_tt_seh_frame
+
+	.def ___ntapi_tt_seh_frame; .scl 3; .type 32; .endef
+
+___ntapi_tt_seh_frame:
+	movl 16(%esp),%eax
+	jmp  *%eax
+
+	.section .got$___ntapi_tt_seh_frame,"r"
+	.global __imp____ntapi_tt_seh_frame
+__imp____ntapi_tt_seh_frame:
+	.long	___ntapi_tt_seh_frame
+	.linkonce discard
diff --git a/src/seh/nt64/ntapi_tt_seh_frame.s b/src/seh/nt64/ntapi_tt_seh_frame.s
new file mode 100644
index 0000000..cd4a681
--- /dev/null
+++ b/src/seh/nt64/ntapi_tt_seh_frame.s
@@ -0,0 +1,43 @@
+##########################################################
+##  ntapi: Native API core library                      ##
+##  Copyright (C) 2013--2017  Z. Gilboa                 ##
+##  Released under GPLv2 and GPLv3; see COPYING.NTAPI.  ##
+##########################################################
+
+.section .text
+
+.global __ntapi_tt_seh_frame
+
+	.def __ntapi_tt_seh_frame; .scl 3; .type 32; .endef
+	.def __seh_trap;           .scl 3; .type 32; .endef
+
+__seh_trap:
+	nop
+	jmp __seh_trap
+
+	.seh_proc __ntapi_tt_seh_frame
+__ntapi_tt_seh_frame:
+	.seh_endprologue
+
+.__init_frame_begin:
+	.seh_handler __seh_trap, @except
+	.seh_handlerdata
+	.long 1
+	.long .__init_frame_begin,.__init_frame_end,__seh_trap,.__init_frame_end
+	.text
+
+	subq $40, %rsp
+	call *%r9
+	addq $40, %rsp
+
+	nop
+.__init_frame_end:
+	ret
+
+	.seh_endproc
+
+	.section .got$__ntapi_tt_seh_frame,"r"
+	.global __imp___ntapi_tt_seh_frame
+__imp___ntapi_tt_seh_frame:
+	.quad	__ntapi_tt_seh_frame
+	.linkonce discard
diff --git a/src/seh/ntapi_tt_seh_frame.c b/src/seh/ntapi_tt_seh_frame.c
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/src/seh/ntapi_tt_seh_frame.c