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Code Issues Releases Activity

Loader: Start work on LoadNRR, Add AutoCloseMap

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This commit is contained in:
Michael Scire 2018-04-26 19:13:55 -06:00
parent b34b9ba0e4
commit 1d73bd0a12
5 changed files with 105 additions and 26 deletions
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43
stratosphere/loader/source/ldr_map.hpp
View file

@ -25,4 +25,47 @@ class MapUtils {
static Result MapCodeMemoryForProcessDeprecated(Handle process_h, bool is_64_bit_address_space, u64 base_address, u64 size, u64 *out_code_memory_address);
static Result MapCodeMemoryForProcessModern(Handle process_h, u64 base_address, u64 size, u64 *out_code_memory_address);
static Result MapCodeMemoryForProcess(Handle process_h, bool is_64_bit_address_space, u64 base_address, u64 size, u64 *out_code_memory_address);
};
class AutoCloseMap {
private:
void *mapped_address;
u64 base_address;
u64 size;
Handle process_handle;
public:
AutoCloseMap() : mapped_address(0), base_address(0), size(0), process_handle(0) { };
~AutoCloseMap() {
Close();
}
void *GetMappedAddress() {
return this->mapped_address;
}
Result Open(Handle process_h, u64 address, u64 size) {
Result rc;
u64 try_address;
if (R_FAILED(rc = MapUtils::LocateSpaceForMap(&try_address, size))) {
return rc;
}
if (R_FAILED((rc = svcMapProcessMemory((void *)try_address, process_h, try_address, size)))) {
return rc;
}
this->mapped_address = (void *)try_address;
this->process_handle = process_h;
this->base_address = address;
this->size = size;
return 0;
}
void Close() {
if (this->mapped_address) {
if (R_FAILED(svcUnmapProcessMemory(this->mapped_address, this->process_handle, this->base_address, this->size))) {
/* TODO: panic(). */
}
}
}
};

31
stratosphere/loader/source/ldr_nso.cpp
View file

@ -224,17 +224,13 @@ Result NsoUtils::LoadNsosIntoProcessMemory(Handle process_h, u64 title_id, NsoLo
Result rc = 0xA09;
for (unsigned int i = 0; i < NSO_NUM_MAX; i++) {
if (g_nso_present[i]) {
u64 map_addr = 0;
if (R_FAILED((rc = MapUtils::LocateSpaceForMap(&map_addr, extents->nso_sizes[i])))) {
return rc;
}
u8 *map_base = (u8 *)map_addr;
if (R_FAILED((rc = svcMapProcessMemory(map_base, process_h, extents->nso_addresses[i], extents->nso_sizes[i])))) {
AutoCloseMap nso_map;
if (R_FAILED((rc = nso_map.Open(process_h, extents->nso_addresses[i], extents->nso_sizes[i])))) {
return rc;
}
u8 *map_base = (u8 *)nso_map.GetMappedAddress();
FILE *f_nso = OpenNso(i, title_id);
if (f_nso == NULL) {
/* Is there a better error to return here? */
@ -243,7 +239,6 @@ Result NsoUtils::LoadNsosIntoProcessMemory(Handle process_h, u64 title_id, NsoLo
for (unsigned int seg = 0; seg < 3; seg++) {
if (R_FAILED((rc = LoadNsoSegment(i, seg, f_nso, map_base, map_base + extents->nso_sizes[i])))) {
fclose(f_nso);
svcUnmapProcessMemory(map_base, process_h, extents->nso_addresses[i], extents->nso_sizes[i]);
return rc;
}
}
@ -262,9 +257,7 @@ Result NsoUtils::LoadNsosIntoProcessMemory(Handle process_h, u64 title_id, NsoLo
u64 bss_base = rw_base + g_nso_headers[i].segments[2].decomp_size, bss_size = g_nso_headers[i].segments[2].align_or_total_size;
std::fill(map_base + bss_base, map_base + bss_base + bss_size, 0);
if (R_FAILED((rc = svcUnmapProcessMemory(map_base, process_h, extents->nso_addresses[i], extents->nso_sizes[i])))) {
return rc;
}
nso_map.Close();
for (unsigned int seg = 0; seg < 3; seg++) {
u64 size = g_nso_headers[i].segments[seg].decomp_size;
@ -283,25 +276,19 @@ Result NsoUtils::LoadNsosIntoProcessMemory(Handle process_h, u64 title_id, NsoLo
/* Map in arguments. */
if (args != NULL && args_size) {
u64 arg_map_addr = 0;
if (R_FAILED((rc = MapUtils::LocateSpaceForMap(&arg_map_addr, extents->args_size)))) {
AutoCloseMap args_map;
if (R_FAILED((rc = args_map.Open(process_h, extents->args_address, extents->args_size)))) {
return rc;
}
NsoArgument *arg_map_base = (NsoArgument *)arg_map_addr;
if (R_FAILED((rc = svcMapProcessMemory(arg_map_base, process_h, extents->args_address, extents->args_size)))) {
return rc;
}
NsoArgument *arg_map_base = (NsoArgument *)args_map.GetMappedAddress();
arg_map_base->allocated_space = extents->args_size;
arg_map_base->args_size = args_size;
std::fill(arg_map_base->_0x8, arg_map_base->_0x8 + sizeof(arg_map_base->_0x8), 0);
std::copy(args, args + args_size, arg_map_base->arguments);
if (R_FAILED((rc = svcUnmapProcessMemory(arg_map_base, process_h, extents->args_address, extents->args_size)))) {
return rc;
}
args_map.Close();
if (R_FAILED((rc = svcSetProcessMemoryPermission(process_h, extents->args_address, extents->args_size, 3)))) {
return rc;

20
stratosphere/loader/source/ldr_registration.cpp
View file

@ -104,6 +104,26 @@ void Registration::AddNsoInfo(u64 index, u64 base_address, u64 size, const unsig
}
Result Registration::AddNrrInfo(u64 index, u64 base_address, u64 size, u64 code_memory_address, u64 loader_address) {
Registration::Process *target_process = GetProcess(index);
if (target_process == NULL) {
/* TODO: panic() */
return 0x7009;
}
for (unsigned int i = 0; i < NSO_INFO_MAX; i++) {
if (!target_process->nrr_infos[i].in_use) {
target_process->nrr_infos[i].info.base_address = base_address;
target_process->nrr_infos[i].info.size = size;
target_process->nrr_infos[i].info.code_memory_address = code_memory_address;
target_process->nrr_infos[i].info.loader_address = loader_address;
return 0;
}
}
return 0x7009;
}
Result Registration::GetNsoInfosForProcessId(Registration::NsoInfo *out, u32 max_out, u64 process_id, u32 *num_written) {
Registration::Process *target_process = GetProcessByProcessId(process_id);
if (target_process == NULL) {

5
stratosphere/loader/source/ldr_registration.hpp
View file

@ -23,7 +23,7 @@ class Registration {
u64 base_address;
u64 size;
u64 code_memory_address;
u64 address_for_loader;
u64 loader_address;
};
struct NrrInfoHolder {
@ -45,7 +45,7 @@ class Registration {
Registration::TidSid tid_sid;
Registration::NsoInfoHolder nso_infos[NSO_INFO_MAX];
Registration::NrrInfoHolder nrr_infos[NRR_INFO_MAX];
u64 _0x730;
void *owner_ro_service;
};
struct List {
@ -61,5 +61,6 @@ class Registration {
static bool UnregisterIndex(u64 index);
static void SetProcessIdTidMinAndIs64BitAddressSpace(u64 index, u64 process_id, u64 tid_min, bool is_64_bit_addspace);
static void AddNsoInfo(u64 index, u64 base_address, u64 size, const unsigned char *build_id);
static Result AddNrrInfo(u64 index, u64 base_address, u64 size, u64 code_memory_address, u64 loader_address);
static Result GetNsoInfosForProcessId(NsoInfo *out, u32 max_out, u64 process_id, u32 *num_written);
};

32
stratosphere/loader/source/ldr_ro_service.cpp
View file

@ -4,6 +4,7 @@
#include "ldr_ro_service.hpp"
#include "ldr_registration.hpp"
#include "ldr_map.hpp"
Result RelocatableObjectsService::dispatch(IpcParsedCommand &r, IpcCommand &out_c, u64 cmd_id, u8 *pointer_buffer, size_t pointer_buffer_size) {
Result rc = 0xF601;
@ -42,8 +43,34 @@ std::tuple<Result> RelocatableObjectsService::unload_nro(PidDescriptor pid_desc,
}
std::tuple<Result> RelocatableObjectsService::load_nrr(PidDescriptor pid_desc, u64 nrr_address, u64 nrr_size) {
/* TODO */
return std::make_tuple(0xF601);
Result rc;
Registration::Process *target_proc;
if (!this->has_initialized || this->process_id != pid_desc.pid) {
rc = 0xAE09;
goto LOAD_NRR_END;
}
if (nrr_address & 0xFFF) {
rc = 0xA209;
goto LOAD_NRR_END;
}
if (nrr_address + nrr_size <= nrr_address || !nrr_size || (nrr_size & 0xFFF)) {
rc = 0xA409;
goto LOAD_NRR_END;
}
target_proc = Registration::GetProcessByProcessId(pid_desc.pid);
if (target_proc == NULL || (target_proc->owner_ro_service != NULL && (RelocatableObjectsService *)(target_proc->owner_ro_service) != this)) {
rc = 0xAC09;
goto LOAD_NRR_END;
}
target_proc->owner_ro_service = this;
/* TODO: Implement remainder of fucntion */
rc = 0xDED09;
LOAD_NRR_END:
return std::make_tuple(rc);
}
std::tuple<Result> RelocatableObjectsService::unload_nrr(PidDescriptor pid_desc, u64 nrr_address) {
@ -59,6 +86,7 @@ std::tuple<Result> RelocatableObjectsService::initialize(PidDescriptor pid_desc,
svcCloseHandle(this->process_handle);
}
this->process_handle = process_h.handle;
this->process_id = handle_pid;
this->has_initialized = true;
rc = 0;
}