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getOwnProcessHandle: use svcCreateSession directly instead of going through SM; replace MODULE_HBL with Module_HomebrewLoader

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This commit is contained in:
fincs 2019-07-29 14:42:37 +02:00
parent 3af8c89024
commit b45f3162a8
1 changed files with 36 additions and 61 deletions
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97
source/main.c
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@ -2,8 +2,6 @@
#include <string.h>
#include <stdio.h>
#define MODULE_HBL 347
const char* g_easterEgg = "Do you mean to tell me that you're thinking seriously of building that way, when and if you are an architect?";
static char g_argv[2048];
@ -45,7 +43,7 @@ void __appInit(void)
rc = smInitialize();
if (R_FAILED(rc))
fatalSimple(MAKERESULT(MODULE_HBL, 1));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 1));
rc = setsysInitialize();
if (R_SUCCEEDED(rc)) {
@ -58,7 +56,7 @@ void __appInit(void)
rc = fsInitialize();
if (R_FAILED(rc))
fatalSimple(MAKERESULT(MODULE_HBL, 2));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 2));
fsdevMountSdmc();
}
@ -94,40 +92,35 @@ void setupHbHeap(void)
rc = svcSetHeapSize(&addr, size);
if (R_FAILED(rc) || addr==NULL)
fatalSimple(MAKERESULT(MODULE_HBL, 9));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 9));
g_heapAddr = addr;
g_heapSize = size;
}
static Handle g_port;
static Handle g_procHandle;
void threadFunc(void* ctx)
static void procHandleReceiveThread(void* arg)
{
Handle session;
Handle session = (Handle)(uintptr_t)arg;
Result rc;
rc = svcWaitSynchronizationSingle(g_port, -1);
if (R_FAILED(rc))
fatalSimple(MAKERESULT(MODULE_HBL, 22));
rc = svcAcceptSession(&session, g_port);
if (R_FAILED(rc))
fatalSimple(MAKERESULT(MODULE_HBL, 14));
u32* tls = (u32*)armGetTls();
tls[0] = 0;
tls[1] = 0;
s32 idx = 0;
rc = svcReplyAndReceive(&idx, &session, 1, 0, -1);
rc = svcReplyAndReceive(&idx, &session, 1, INVALID_HANDLE, UINT64_MAX);
if (R_FAILED(rc))
fatalSimple(MAKERESULT(MODULE_HBL, 15));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 15));
IpcParsedCommand ipc;
rc = ipcParse(&ipc);
if (R_FAILED(rc))
fatalSimple(MAKERESULT(MODULE_HBL, 16));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 16));
if (ipc.NumHandles != 1)
fatalSimple(MAKERESULT(MODULE_HBL, 17));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 17));
g_procHandle = ipc.Handles[0];
svcCloseHandle(session);
@ -181,47 +174,29 @@ void getOwnProcessHandle(void)
static Thread t;
Result rc;
rc = threadCreate(&t, &threadFunc, NULL, 0x1000, 0x20, 0);
Handle server_handle, client_handle;
rc = svcCreateSession(&server_handle, &client_handle, 0, 0);
if (R_FAILED(rc))
fatalSimple(MAKERESULT(MODULE_HBL, 10));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 12));
rc = smRegisterService(&g_port, "hb:ldr", false, 1);
rc = threadCreate(&t, &procHandleReceiveThread, (void*)(uintptr_t)server_handle, 0x1000, 0x20, 0);
if (R_FAILED(rc))
fatalSimple(MAKERESULT(MODULE_HBL, 12));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 10));
rc = threadStart(&t);
if (R_FAILED(rc))
fatalSimple(MAKERESULT(MODULE_HBL, 13));
Service srv;
rc = smGetService(&srv, "hb:ldr");
if (R_FAILED(rc))
fatalSimple(MAKERESULT(MODULE_HBL, 23));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 13));
IpcCommand ipc;
ipcInitialize(&ipc);
ipcSendHandleCopy(&ipc, 0xffff8001);
ipcSendHandleCopy(&ipc, CUR_PROCESS_HANDLE);
ipcPrepareHeader(&ipc, 0);
struct {
int x, y;
}* raw;
raw = ipcPrepareHeader(&ipc, sizeof(*raw));
raw->x = raw->y = 0;
rc = serviceIpcDispatch(&srv);
ipcDispatch(client_handle);
svcCloseHandle(client_handle);
threadWaitForExit(&t);
threadClose(&t);
serviceClose(&srv);
svcCloseHandle(g_port);
rc = smUnregisterService("hb:ldr");
if (R_FAILED(rc))
fatalSimple(MAKERESULT(MODULE_HBL, 11));
smExit();
}
void loadNro(void)
@ -252,21 +227,21 @@ void loadNro(void)
g_procHandle, g_nroAddr + header->segments[0].file_off, ((u64) g_heapAddr) + header->segments[0].file_off, header->segments[0].size);
if (R_FAILED(rc))
fatalSimple(MAKERESULT(MODULE_HBL, 24));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 24));
// .rodata
rc = svcUnmapProcessCodeMemory(
g_procHandle, g_nroAddr + header->segments[1].file_off, ((u64) g_heapAddr) + header->segments[1].file_off, header->segments[1].size);
if (R_FAILED(rc))
fatalSimple(MAKERESULT(MODULE_HBL, 25));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 25));
// .data + .bss
rc = svcUnmapProcessCodeMemory(
g_procHandle, g_nroAddr + header->segments[2].file_off, ((u64) g_heapAddr) + header->segments[2].file_off, rw_size);
if (R_FAILED(rc))
fatalSimple(MAKERESULT(MODULE_HBL, 26));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 26));
g_nroAddr = g_nroSize = 0;
}
@ -287,23 +262,23 @@ void loadNro(void)
FILE* f = fopen(g_nextNroPath, "rb");
if (f == NULL)
fatalSimple(MAKERESULT(MODULE_HBL, 3));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 3));
// Reset NRO path to load hbmenu by default next time.
g_nextNroPath[0] = '\0';
if (fread(start, sizeof(*start), 1, f) != 1)
fatalSimple(MAKERESULT(MODULE_HBL, 4));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 4));
if (fread(header, sizeof(*header), 1, f) != 1)
fatalSimple(MAKERESULT(MODULE_HBL, 4));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 4));
if(header->magic != NROHEADER_MAGIC)
fatalSimple(MAKERESULT(MODULE_HBL, 5));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 5));
size_t rest_size = header->size - (sizeof(NroStart) + sizeof(NroHeader));
if (fread(rest, rest_size, 1, f) != 1)
fatalSimple(MAKERESULT(MODULE_HBL, 7));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 7));
fclose(f);
@ -323,7 +298,7 @@ void loadNro(void)
if (header->segments[i].file_off >= header->size || header->segments[i].size > header->size ||
(header->segments[i].file_off + header->segments[i].size) > header->size)
{
fatalSimple(MAKERESULT(MODULE_HBL, 6));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 6));
}
}
@ -342,28 +317,28 @@ void loadNro(void)
} while (rc == 0xDC01 || rc == 0xD401);
if (R_FAILED(rc))
fatalSimple(MAKERESULT(MODULE_HBL, 18));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 18));
// .text
rc = svcSetProcessMemoryPermission(
g_procHandle, map_addr + header->segments[0].file_off, header->segments[0].size, Perm_R | Perm_X);
if (R_FAILED(rc))
fatalSimple(MAKERESULT(MODULE_HBL, 19));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 19));
// .rodata
rc = svcSetProcessMemoryPermission(
g_procHandle, map_addr + header->segments[1].file_off, header->segments[1].size, Perm_R);
if (R_FAILED(rc))
fatalSimple(MAKERESULT(MODULE_HBL, 20));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 20));
// .data + .bss
rc = svcSetProcessMemoryPermission(
g_procHandle, map_addr + header->segments[2].file_off, rw_size, Perm_Rw);
if (R_FAILED(rc))
fatalSimple(MAKERESULT(MODULE_HBL, 21));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 21));
u64 nro_size = header->segments[2].file_off + rw_size;
u64 nro_heap_start = ((u64) g_heapAddr) + nro_size;
@ -437,6 +412,6 @@ int main(int argc, char **argv)
getOwnProcessHandle();
loadNro();
fatalSimple(MAKERESULT(MODULE_HBL, 8));
fatalSimple(MAKERESULT(Module_HomebrewLoader, 8));
return 0;
}