From e8c3a9139e37ddc0d4f2f624becd28db335a9c44 Mon Sep 17 00:00:00 2001
From: yellows8 <yellows8@users.noreply.github.com>
Date: Mon, 19 Dec 2016 19:49:51 -0500
Subject: [PATCH] Started implementing BOSS support.

---
 libctru/include/3ds.h               |   1 +
 libctru/include/3ds/services/boss.h |  30 ++++++++
 libctru/source/services/boss.c      | 109 ++++++++++++++++++++++++++++
 3 files changed, 140 insertions(+)
 create mode 100644 libctru/include/3ds/services/boss.h
 create mode 100644 libctru/source/services/boss.c

diff --git a/libctru/include/3ds.h b/libctru/include/3ds.h
index 7b8ed57..d4079d8 100644
--- a/libctru/include/3ds.h
+++ b/libctru/include/3ds.h
@@ -31,6 +31,7 @@ extern "C" {
 #include <3ds/services/am.h>
 #include <3ds/services/ampxi.h>
 #include <3ds/services/apt.h>
+#include <3ds/services/boss.h>
 #include <3ds/services/cam.h>
 #include <3ds/services/cfgnor.h>
 #include <3ds/services/cfgu.h>
diff --git a/libctru/include/3ds/services/boss.h b/libctru/include/3ds/services/boss.h
new file mode 100644
index 0000000..479909c
--- /dev/null
+++ b/libctru/include/3ds/services/boss.h
@@ -0,0 +1,30 @@
+/**
+ * @file boss.h
+ * @brief BOSS service, see also: https://www.3dbrew.org/wiki/BOSS_Services
+ */
+#pragma once
+
+/**
+ * @brief Initializes BOSS.
+ * @param programID programID to use, 0 for the current process. Not used internally unless BOSSP is available.
+ */
+Result bossInit(u64 programID);
+
+/// Exits BOSS.
+void bossExit(void);
+
+/// Returns the BOSS session handle.
+Handle bossGetSessionHandle();
+
+/**
+ * @brief ?
+ * @param taskID BOSS taskID.
+ */
+Result bossStartTaskImmediate(char *taskID);
+
+/**
+ * @brief ?
+ * @param taskID BOSS taskID.
+ */
+Result bossStartBgImmediate(char *taskID);
+
diff --git a/libctru/source/services/boss.c b/libctru/source/services/boss.c
new file mode 100644
index 0000000..987e0db
--- /dev/null
+++ b/libctru/source/services/boss.c
@@ -0,0 +1,109 @@
+#include <stdlib.h>
+#include <string.h>
+#include <3ds/types.h>
+#include <3ds/result.h>
+#include <3ds/svc.h>
+#include <3ds/srv.h>
+#include <3ds/synchronization.h>
+#include <3ds/services/boss.h>
+#include <3ds/ipc.h>
+#include <3ds/env.h>
+
+static Handle bossHandle;
+static int bossRefCount;
+static u32 bossPriv = 0;
+
+static Result bossipc_InitializeSession(u64 programID);
+
+Result bossInit(u64 programID)
+{
+	Result res=0;
+	Handle envhandle=0;
+	Handle handle=0;
+
+	if (AtomicPostIncrement(&bossRefCount)) return 0;
+
+	res = srvGetServiceHandle(&handle, "boss:P");
+	envhandle = envGetHandle("boss:P");
+	bossPriv = 1;
+	if (R_FAILED(res))
+	{
+		bossPriv = 0;
+		res = srvGetServiceHandle(&handle, "boss:U");
+		envhandle = envGetHandle("boss:U");
+	}
+
+	if (R_FAILED(res)) AtomicDecrement(&bossRefCount);
+
+	if (R_SUCCEEDED(res))
+	{
+		bossHandle = handle;
+
+		if(envhandle==0)res = bossipc_InitializeSession(programID);
+
+		if (R_FAILED(res))bossExit();
+	}
+
+	return res;
+}
+
+void bossExit(void)
+{
+	if (AtomicDecrement(&bossRefCount)) return;
+	svcCloseHandle(bossHandle);
+	bossHandle = 0;
+}
+
+Handle bossGetSessionHandle()
+{
+	return bossHandle;
+}
+
+static Result bossipc_InitializeSession(u64 programID)
+{
+	Result ret = 0;
+	u32 *cmdbuf = getThreadCommandBuffer();
+
+	if(bossPriv==0)cmdbuf[0] = IPC_MakeHeader(0x1,2,2); // 0x10082
+	if(bossPriv)cmdbuf[0] = IPC_MakeHeader(0x0401,2,2); // 0x04010082
+	cmdbuf[1] = (u32) programID;
+	cmdbuf[2] = (u32) (programID >> 32);
+	cmdbuf[3] = IPC_Desc_CurProcessHandle();
+
+	if(R_FAILED(ret = svcSendSyncRequest(bossHandle)))return ret;
+
+	return (Result)cmdbuf[1];
+}
+
+Result bossStartTaskImmediate(char *taskID)
+{
+	Result ret = 0;
+	u32 *cmdbuf = getThreadCommandBuffer();
+	u32 size = strlen(taskID)+1;
+
+	cmdbuf[0] = IPC_MakeHeader(0x1D,1,2); // 0x1D0042
+	cmdbuf[1] = size;
+	cmdbuf[2] = IPC_Desc_Buffer(size, IPC_BUFFER_R);
+	cmdbuf[3] = (u32)taskID;
+
+	if(R_FAILED(ret = svcSendSyncRequest(bossHandle)))return ret;
+
+	return (Result)cmdbuf[1];
+}
+
+Result bossStartBgImmediate(char *taskID)
+{
+	Result ret = 0;
+	u32 *cmdbuf = getThreadCommandBuffer();
+	u32 size = strlen(taskID)+1;
+
+	cmdbuf[0] = IPC_MakeHeader(0x33,1,2); // 0x330042
+	cmdbuf[1] = size;
+	cmdbuf[2] = IPC_Desc_Buffer(size, IPC_BUFFER_R);
+	cmdbuf[3] = (u32)taskID;
+
+	if(R_FAILED(ret = svcSendSyncRequest(bossHandle)))return ret;
+
+	return (Result)cmdbuf[1];
+}
+