fusee: embed opt-in NCM kip

fusee/fusee-secondary/Makefile

@@ -84,7 +84,7 @@ ifneq ($(BUILD),$(notdir $(CURDIR)))
 export OUTPUT	:=	$(CURDIR)/$(TARGET)
 export TOPDIR	:=	$(CURDIR)
 
-export KIPDIRS	:= $(AMS)/stratosphere/loader $(AMS)/stratosphere/pm $(AMS)/stratosphere/sm $(AMS)/stratosphere/boot $(AMS)/stratosphere/spl $(AMS)/stratosphere/ams_mitm
+export KIPDIRS	:= $(AMS)/stratosphere/loader $(AMS)/stratosphere/ncm $(AMS)/stratosphere/pm $(AMS)/stratosphere/sm $(AMS)/stratosphere/boot $(AMS)/stratosphere/spl $(AMS)/stratosphere/ams_mitm
 export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
 			$(foreach dir,$(DATA),$(CURDIR)/$(dir)) \
 			$(AMS)/exosphere $(AMS)/exosphere/lp0fw $(AMS)/exosphere/rebootstub \
@@ -96,7 +96,7 @@ export DEPSDIR	:=	$(CURDIR)/$(BUILD)
 CFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
 CPPFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
 SFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
-KIPFILES 	:=	loader.kip pm.kip sm.kip ams_mitm.kip spl.kip boot.kip
+KIPFILES 	:=	loader.kip ncm.kip pm.kip sm.kip ams_mitm.kip spl.kip boot.kip
 BINFILES	:=	$(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*))) fusee-primary.bin \
 				exosphere.bin lp0fw.bin rebootstub.bin thermosphere.bin splash_screen.bmp \
 				sept-primary.bin sept-secondary_00.enc sept-secondary_01.enc emummc.kip \

fusee/fusee-secondary/linker.ld

@@ -230,6 +230,8 @@ SECTIONS
     PROVIDE(__loader_kip_size__ = loader_kip_end - loader_kip);
     PROVIDE(__lp0fw_bin_start__ = lp0fw_bin - __start__);
     PROVIDE(__lp0fw_bin_size__ = lp0fw_bin_end - lp0fw_bin);
+    PROVIDE(__ncm_kip_start__ = ncm_kip - __start__);
+    PROVIDE(__ncm_kip_size__ = ncm_kip_end - ncm_kip);
     PROVIDE(__pm_kip_start__ = pm_kip - __start__);
     PROVIDE(__pm_kip_size__ = pm_kip_end - pm_kip);
     PROVIDE(__rebootstub_bin_start__ = rebootstub_bin - __start__);

fusee/fusee-secondary/src/nxboot.c

@@ -184,6 +184,12 @@ static int stratosphere_ini_handler(void *user, const char *section, const char
             strat_cfg->has_nogc_config = true;
             sscanf(value, "%d", &tmp);
             strat_cfg->enable_nogc = tmp != 0;
+        } else if (strcmp(name, STRATOSPHERE_ENABLE_NCM_KEY) == 0) {
+            sscanf(value, "%d", &tmp);
+            strat_cfg->ncm_enabled = tmp != 0;
+            if (strat_cfg->ncm_enabled) {
+                stratosphere_enable_ncm();
+            }
         } else {
             return 0;
         }

fusee/fusee-secondary/src/start.s

@@ -202,6 +202,14 @@ _content_headers:
 .asciz "spl"
 .align 5
 
+/* spl content header */
+.word __ncm_kip_start__
+.word __ncm_kip_size__
+.word CONTENT_TYPE_KIP
+.word 0xCCCCCCCC
+.asciz "NCM"
+.align 5
+
 /* emummc content header */
 .word __emummc_kip_start__
 .word __emummc_kip_size__

fusee/fusee-secondary/src/stratosphere.c

@@ -30,6 +30,7 @@
 #define u8 uint8_t
 #define u32 uint32_t
 #include "loader_kip.h"
+#include "ncm_kip.h"
 #include "pm_kip.h"
 #include "sm_kip.h"
 #include "ams_mitm_kip.h"
@@ -47,9 +48,10 @@ static bool g_stratosphere_pm_enabled = true;
 static bool g_stratosphere_ams_mitm_enabled = true;
 static bool g_stratosphere_spl_enabled = true;
 static bool g_stratosphere_boot_enabled = true;
+static bool g_stratosphere_ncm_enabled = false;
 
-extern const uint8_t loader_kip[], pm_kip[], sm_kip[], spl_kip[], boot_kip[], ams_mitm_kip[];
-extern const uint32_t loader_kip_size, pm_kip_size, sm_kip_size, spl_kip_size, boot_kip_size, ams_mitm_kip_size;
+extern const uint8_t loader_kip[], pm_kip[], sm_kip[], spl_kip[], boot_kip[], ncm_kip[], ams_mitm_kip[];
+extern const uint32_t loader_kip_size, pm_kip_size, sm_kip_size, spl_kip_size, boot_kip_size, ncm_kip_size, ams_mitm_kip_size;
 
 static emummc_fs_ver_t g_fs_ver = FS_VER_1_0_0;
 
@@ -57,6 +59,19 @@ emummc_fs_ver_t stratosphere_get_fs_version(void) {
     return g_fs_ver;
 }
 
+void stratosphere_enable_ncm(void) {
+    /* The Atmosphere team believes our implementation of NCM to be extremely accurate, */
+    /* and does not think it likely there is any possibility of undesirable behavior */
+    /* when using the NCM reimplementation. However, because NCM manages critical save games */
+    /* the implementation will default to off for some time, until the code has been thoroughly */
+    /* tested in practice. */
+
+    /* PLEASE NOTE: The default behavior will be NCM on in a future atmosphere release, */
+    /* and this opt-in functionality will be removed at that time. */
+
+    g_stratosphere_ncm_enabled = true;
+}
+
 /* GCC doesn't consider the size as const... we have to write it ourselves. */
 
 ini1_header_t *stratosphere_get_ini1(uint32_t target_firmware) {
@@ -95,6 +110,11 @@ ini1_header_t *stratosphere_get_ini1(uint32_t target_firmware) {
         num_processes++;
     }
 
+    if (g_stratosphere_ncm_enabled) {
+        size += ncm_kip_size;
+        num_processes++;
+    }
+
     if (g_stratosphere_boot_enabled) {
         size += boot_kip_size;
         num_processes++;
@@ -134,6 +154,11 @@ ini1_header_t *stratosphere_get_ini1(uint32_t target_firmware) {
         data += spl_kip_size;
     }
 
+    if (g_stratosphere_ncm_enabled) {
+        memcpy(data, ncm_kip, ncm_kip_size);
+        data += ncm_kip_size;
+    }
+
     if (g_stratosphere_ams_mitm_enabled) {
         memcpy(data, ams_mitm_kip, ams_mitm_kip_size);
         data += ams_mitm_kip_size;

fusee/fusee-secondary/src/stratosphere.h

@@ -30,6 +30,8 @@ ini1_header_t *stratosphere_get_ini1(uint32_t target_firmware);
 ini1_header_t *stratosphere_get_sd_files_ini1(void);
 void stratosphere_free_ini1(void);
 
+void stratosphere_enable_ncm(void);
+
 emummc_fs_ver_t stratosphere_get_fs_version(void);
 
 ini1_header_t *stratosphere_merge_inis(ini1_header_t **inis, unsigned int num_inis, void *emummc, size_t emummc_size);
@@ -37,8 +39,10 @@ ini1_header_t *stratosphere_merge_inis(ini1_header_t **inis, unsigned int num_in
 typedef struct {
     bool has_nogc_config;
     bool enable_nogc;
+    bool ncm_enabled;
 } stratosphere_cfg_t;
 
 #define STRATOSPHERE_NOGC_KEY "nogc"
+#define STRATOSPHERE_ENABLE_NCM_KEY "enable_ncm"
 
 #endif