Move the kext outside Rosalina

- Stability (tm) - Boots 1s faster on N3DS - (∩ ͡° ͜ʖ ͡°)⊃━☆ﾟ
2017-06-13 02:00:41 +02:00
parent ae8ea7da16
commit e1d0602f25
78 changed files with 357 additions and 605 deletions
--- a/k11_extension/source/svc/KernelSetState.c
+++ b/k11_extension/source/svc/KernelSetState.c
@@ -0,0 +1,149 @@
+/*
+*   This file is part of Luma3DS
+*   Copyright (C) 2016-2017 Aurora Wright, TuxSH
+*
+*   This program is free software: you can redistribute it and/or modify
+*   it under the terms of the GNU General Public License as published by
+*   the Free Software Foundation, either version 3 of the License, or
+*   (at your option) any later version.
+*
+*   This program is distributed in the hope that it will be useful,
+*   but WITHOUT ANY WARRANTY; without even the implied warranty of
+*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*   GNU General Public License for more details.
+*
+*   You should have received a copy of the GNU General Public License
+*   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*
+*   Additional Terms 7.b and 7.c of GPLv3 apply to this file:
+*       * Requiring preservation of specified reasonable legal notices or
+*         author attributions in that material or in the Appropriate Legal
+*         Notices displayed by works containing it.
+*       * Prohibiting misrepresentation of the origin of that material,
+*         or requiring that modified versions of such material be marked in
+*         reasonable ways as different from the original version.
+*/
+
+#include "svc/KernelSetState.h"
+#include "synchronization.h"
+#include "ipc.h"
+#include "memory.h"
+
+#define MAX_DEBUG 3
+
+static u32 nbEnabled = 0;
+static u32 maskedPids[MAX_DEBUG];
+static u32 masks[MAX_DEBUG][8] = {0};
+
+bool shouldSignalSyscallDebugEvent(KProcess *process, u8 svcId)
+{
+    u32 pid = idOfProcess(process);
+    u32 id;
+    for(id = 0; id < nbEnabled && maskedPids[id] != pid; id++);
+    if(id == MAX_DEBUG)
+        return false;
+    else
+        return ((masks[id][svcId / 32] >> (31 - (svcId % 32))) & 1) != 0;
+}
+
+Result SetSyscallDebugEventMask(u32 pid, bool enable, const u32 *mask)
+{
+    static KRecursiveLock syscallDebugEventMaskLock = { NULL };
+
+    u32 tmpMask[8];
+    if(enable && nbEnabled == MAX_DEBUG)
+        return 0xC86018FF; // Out of resource (255)
+
+    if(enable && !usrToKernelMemcpy8(&tmpMask, mask, 32))
+        return 0xE0E01BF5;
+
+    KRecursiveLock__Lock(criticalSectionLock);
+    KRecursiveLock__Lock(&syscallDebugEventMaskLock);
+
+    if(enable)
+    {
+        maskedPids[nbEnabled] = pid;
+        memcpy(&masks[nbEnabled++], tmpMask, 32);
+    }
+    else
+    {
+        u32 id;
+        for(id = 0; id < nbEnabled && maskedPids[id] != pid; id++);
+        if(id == nbEnabled)
+        {
+                KRecursiveLock__Unlock(&syscallDebugEventMaskLock);
+                KRecursiveLock__Unlock(criticalSectionLock);
+                return 0xE0E01BFD; // out of range (it's not fully technically correct but meh)
+        }
+
+        for(u32 i = id; i < nbEnabled - 1; i++)
+        {
+            maskedPids[i] = maskedPids[i + 1];
+            memcpy(&masks[i], &masks[i + 1], 32);
+        }
+        maskedPids[--nbEnabled] = 0;
+        memset(&masks[nbEnabled], 0, 32);
+    }
+
+    KRecursiveLock__Unlock(&syscallDebugEventMaskLock);
+    KRecursiveLock__Unlock(criticalSectionLock);
+    return 0;
+}
+
+Result KernelSetStateHook(u32 type, u32 varg1, u32 varg2, u32 varg3)
+{
+    Result res = 0;
+
+    switch(type)
+    {
+        case 0x10000:
+        {
+            do
+            {
+                __ldrex((s32 *)&rosalinaState);
+            }
+            while(__strex((s32 *)&rosalinaState, (s32)(rosalinaState ^ varg1)));
+
+            if(rosalinaState & 2)
+                hasStartedRosalinaNetworkFuncsOnce = true;
+
+            break;
+        }
+        case 0x10001:
+        {
+            KRecursiveLock__Lock(criticalSectionLock);
+            KRecursiveLock__Lock(&processLangemuLock);
+
+            u32 i;
+            for(i = 0; i < 0x40 && processLangemuAttributes[i].titleId != 0ULL; i++);
+            if(i < 0x40)
+            {
+                processLangemuAttributes[i].titleId = ((u64)varg3 << 32) | (u32)varg2;
+                processLangemuAttributes[i].state = (u8)(varg1 >> 24);
+                processLangemuAttributes[i].country = (u8)(varg1 >> 16);
+                processLangemuAttributes[i].language = (u8)(varg1 >> 8);
+                processLangemuAttributes[i].region = (u8)((varg1 >> 4) & 0xf);
+                processLangemuAttributes[i].mask = (u8)(varg1 & 0xf);
+            }
+            else
+                res = 0xD8609013;
+
+            KRecursiveLock__Unlock(&processLangemuLock);
+            KRecursiveLock__Unlock(criticalSectionLock);
+            break;
+        }
+        case 0x10002:
+        {
+            res = SetSyscallDebugEventMask(varg1, (bool)varg2, (const u32 *)varg3);
+            break;
+        }
+
+        default:
+        {
+            res = KernelSetState(type, varg1, varg2, varg3);
+            break;
+        }
+    }
+
+    return res;
+}