Atmosphere/stratosphere/loader/source/ldr_process_creation.cpp
2018-04-24 03:14:40 -06:00

168 lines
5.9 KiB
C++

#include <switch.h>
#include <algorithm>
#include "ldr_process_creation.hpp"
#include "ldr_registration.hpp"
#include "ldr_launch_queue.hpp"
#include "ldr_content_management.hpp"
#include "ldr_npdm.hpp"
#include "ldr_nso.hpp"
Result ProcessCreation::InitializeProcessInfo(NpdmUtils::NpdmInfo *npdm, Handle reslimit_h, u64 arg_flags, ProcessInfo *out_proc_info) {
/* Initialize a ProcessInfo using an npdm. */
*out_proc_info = (const ProcessCreation::ProcessInfo){0};
/* Copy all but last char of name, insert NULL terminator. */
std::copy(npdm->header->title_name, npdm->header->title_name + sizeof(out_proc_info->name) - 1, out_proc_info->name);
out_proc_info->name[sizeof(out_proc_info->name) - 1] = 0;
/* Set title id. */
out_proc_info->title_id = npdm->aci0->title_id;
/* Set process category. */
out_proc_info->process_category = npdm->header->process_category;
/* Copy reslimit handle raw. */
out_proc_info->reslimit_h = reslimit_h;
/* Set IsAddressSpace64Bit, AddressSpaceType. */
if (npdm->header->mmu_flags & 8) {
/* Invalid Address Space Type. */
return 0x809;
}
out_proc_info->process_flags = (npdm->header->mmu_flags & 0xF);
/* Set Bit 4 (?) and EnableAslr based on argument flags. */
out_proc_info->process_flags |= ((arg_flags & 3) << 4) ^ 0x20;
/* Set UseSystemMemBlocks if application type is 1. */
u32 application_type = NpdmUtils::GetApplicationType((u32 *)npdm->aci0_kac, npdm->aci0->kac_size / sizeof(u32));
if ((application_type & 3) == 1) {
out_proc_info->process_flags |= 0x40;
}
/* 3.0.0+ System Resource Size. */
if (kernelAbove300()) {
if (npdm->header->system_resource_size & 0x1FFFFF) {
return 0xA409;
}
if (npdm->header->system_resource_size) {
if ((out_proc_info->process_flags & 6) == 0) {
return 0x809;
}
if ((application_type & 3) != 1) {
return 0x809;
}
if (npdm->header->system_resource_size > 0x1FE00000) {
return 0x809;
}
}
out_proc_info->system_resource_num_pages = npdm->header->system_resource_size >> 12;
} else {
out_proc_info->system_resource_num_pages = 0;
}
/* 5.0.0+ Pool Partition. */
if (kernelAbove500()) {
u32 pool_partition_id = (npdm->acid->is_retail >> 2) & 0xF;
switch (pool_partition_id) {
case 0: /* Application. */
if ((application_type & 3) == 2) {
out_proc_info->process_flags |= 0x80;
}
break;
case 1: /* Applet. */
out_proc_info->process_flags |= 0x80;
break;
case 2: /* Sysmodule. */
out_proc_info->process_flags |= 0x100;
break;
case 3: /* nvservices. */
out_proc_info->process_flags |= 0x180;
break;
default:
return 0x809;
}
}
return 0x0;
}
Result ProcessCreation::CreateProcess(Handle *out_process_h, u64 index, char *nca_path, LaunchQueue::LaunchItem *launch_item, u64 arg_flags, Handle reslimit_h) {
NpdmUtils::NpdmInfo npdm_info = {0};
ProcessInfo process_info = {0};
Registration::Process *target_process;
Handle process_h = 0;
Result rc;
/* Get the process from the registration queue. */
target_process = Registration::get_process(index);
if (target_process == NULL) {
return 0x1009;
}
/* Mount the title's exefs. */
rc = ContentManagement::MountCodeForTidSid(&target_process->tid_sid);
if (R_FAILED(rc)) {
return rc;
}
/* Load the process's NPDM. */
rc = NpdmUtils::LoadNpdmFromCache(target_process->tid_sid.title_id, &npdm_info);
if (R_FAILED(rc)) {
goto CREATE_PROCESS_END;
}
/* Validate the title we're loading is what we expect. */
if (npdm_info.aci0->title_id < npdm_info.acid->title_id_range_min || npdm_info.aci0->title_id > npdm_info.acid->title_id_range_max) {
rc = 0x1209;
goto CREATE_PROCESS_END;
}
/* Validate that the ACI0 Kernel Capabilities are valid and restricted by the ACID Kernel Capabilities. */
rc = NpdmUtils::ValidateCapabilities((u32 *)npdm_info.acid_kac, npdm_info.acid->kac_size/sizeof(u32), (u32 *)npdm_info.aci0_kac, npdm_info.aci0->kac_size/sizeof(u32));
if (R_FAILED(rc)) {
goto CREATE_PROCESS_END;
}
/* Read in all NSO headers, see what NSOs are present. */
rc = NsoUtils::LoadNsoHeaders(npdm_info.aci0->title_id);
if (R_FAILED(rc)) {
goto CREATE_PROCESS_END;
}
/* Validate that the set of NSOs to be loaded is correct. */
rc = NsoUtils::ValidateNsoLoadSet();
if (R_FAILED(rc)) {
goto CREATE_PROCESS_END;
}
/* Initialize the ProcessInfo. */
rc = ProcessCreation::InitializeProcessInfo(&npdm_info, reslimit_h, arg_flags, &process_info);
if (R_FAILED(rc)) {
goto CREATE_PROCESS_END;
}
/* TODO: Figure out where NSOs will be mapped, and how much space they (and arguments) will take up. */
/* Call svcCreateProcess(). */
rc = svcCreateProcess(&process_h, &process_info, (u32 *)npdm_info.aci0_kac, npdm_info.aci0->kac_size/sizeof(u32));
if (R_FAILED(rc)) {
goto CREATE_PROCESS_END;
}
/* TODO: For each NSO, call svcMapProcessMemory, load the NSO into memory there (validating it), and then svcUnmapProcessMemory. */
/* TODO: svcSetProcessMemoryPermission for each memory segment in the new process. */
/* TODO: Map and load arguments to the process, if relevant. */
/* TODO: Update the list of registered processes with the new process. */
rc = 0;
CREATE_PROCESS_END:
if (R_SUCCEEDED(rc)) {
rc = ContentManagement::UnmountCode();
} else {
ContentManagement::UnmountCode();
}
return rc;
}