mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-11-09 22:56:35 +00:00
ro: update for R_TRY usage
This commit is contained in:
Michael Scire
parent
dfcba5e6d4
commit
876d94c338
5 changed files with 96 additions and 181 deletions
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@ -1 +1 @@
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Subproject commit afcd075354dec43fae882c3ad4d5220336231d04
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Subproject commit b5f1ec02b30a3bbf8a8419f8b0cf3646071ebd2b
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@ -13,7 +13,7 @@
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <switch.h>
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#include <cstdio>
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@ -22,7 +22,7 @@
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bool MapUtils::CanAddGuardRegions(Handle process_handle, u64 address, u64 size) {
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MemoryInfo mem_info;
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u32 page_info;
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/* Nintendo doesn't validate SVC return values at all. */
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/* TODO: Should we allow these to fail? */
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if (R_FAILED(svcQueryProcessMemory(&mem_info, &page_info, process_handle, address - 1))) {
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@ -34,7 +34,7 @@ bool MapUtils::CanAddGuardRegions(Handle process_handle, u64 address, u64 size)
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}
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return mem_info.type == MemType_Unmapped && address + size + GuardRegionSize <= mem_info.addr + mem_info.size;
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}
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return false;
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}
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@ -46,12 +46,15 @@ Result MapUtils::LocateSpaceForMap(u64 *out, u64 out_size) {
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}
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}
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Result MapUtils::MapCodeMemoryForProcess(MappedCodeMemory &out_mcm, Handle process_handle, bool is_64_bit, u64 base_address, u64 size) {
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Result MapUtils::MapCodeMemoryForProcess(MappedCodeMemory &out_mcm, Handle process_handle, u64 base_address, u64 size) {
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if (GetRuntimeFirmwareVersion() >= FirmwareVersion_200) {
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return MapCodeMemoryForProcessModern(out_mcm, process_handle, base_address, size);
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} else {
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return MapCodeMemoryForProcessDeprecated(out_mcm, process_handle, is_64_bit, base_address, size);
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Result rc = MapCodeMemoryForProcessDeprecated(out_mcm, process_handle, true, base_address, size);
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if (R_FAILED(rc)) {
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rc = MapCodeMemoryForProcessDeprecated(out_mcm, process_handle, false, base_address, size);
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}
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return rc;
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}
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}
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@ -60,31 +63,27 @@ Result MapUtils::LocateSpaceForMapModern(u64 *out, u64 out_size) {
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AddressSpaceInfo address_space = {};
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u32 page_info = 0;
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u64 cur_base = 0, cur_end = 0;
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Result rc;
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if (R_FAILED((rc = GetAddressSpaceInfo(&address_space, CUR_PROCESS_HANDLE)))) {
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return rc;
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}
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R_TRY(GetAddressSpaceInfo(&address_space, CUR_PROCESS_HANDLE));
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cur_base = address_space.addspace_base;
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rc = ResultKernelOutOfMemory;
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cur_end = cur_base + out_size;
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if (cur_end <= cur_base) {
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return rc;
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return ResultKernelOutOfMemory;
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}
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while (true) {
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if (address_space.heap_size && (address_space.heap_base <= cur_end - 1 && cur_base <= address_space.heap_end - 1)) {
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/* If we overlap the heap region, go to the end of the heap region. */
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if (cur_base == address_space.heap_end) {
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return rc;
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return ResultKernelOutOfMemory;
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}
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cur_base = address_space.heap_end;
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} else if (address_space.map_size && (address_space.map_base <= cur_end - 1 && cur_base <= address_space.map_end - 1)) {
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/* If we overlap the map region, go to the end of the map region. */
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if (cur_base == address_space.map_end) {
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return rc;
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return ResultKernelOutOfMemory;
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}
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cur_base = address_space.map_end;
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} else {
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@ -96,67 +95,52 @@ Result MapUtils::LocateSpaceForMapModern(u64 *out, u64 out_size) {
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return ResultSuccess;
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}
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if (mem_info.addr + mem_info.size <= cur_base) {
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return rc;
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return ResultKernelOutOfMemory;
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}
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cur_base = mem_info.addr + mem_info.size;
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if (cur_base >= address_space.addspace_end) {
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return rc;
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return ResultKernelOutOfMemory;
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}
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}
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cur_end = cur_base + out_size;
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if (cur_base + out_size <= cur_base) {
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return rc;
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return ResultKernelOutOfMemory;
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}
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}
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}
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}
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Result MapUtils::LocateSpaceForMapDeprecated(u64 *out, u64 out_size) {
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MemoryInfo mem_info = {};
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u32 page_info = 0;
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Result rc;
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u64 cur_base = 0x8000000ULL;
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if (R_FAILED((rc = svcQueryMemory(&mem_info, &page_info, cur_base)))) {
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return rc;
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}
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rc = ResultKernelOutOfMemory;
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while (true) {
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if (mem_info.type == 0x10) {
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return rc;
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}
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do {
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R_TRY(svcQueryMemory(&mem_info, &page_info, cur_base));
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if (mem_info.type == 0 && mem_info.addr - cur_base + mem_info.size >= out_size) {
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*out = cur_base;
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return ResultSuccess;
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}
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u64 mem_end = mem_info.addr + mem_info.size;
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if (mem_end < cur_base) {
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return rc;
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}
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if (mem_end >> 31) {
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break;
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const u64 mem_end = mem_info.addr + mem_info.size;
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if (mem_info.type == 0x10 || mem_end < cur_base || (mem_end >> 31)) {
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return ResultKernelOutOfMemory;
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}
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cur_base = mem_end;
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if (R_FAILED((rc = svcQueryMemory(&mem_info, &page_info, cur_base)))) {
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return rc;
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}
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}
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return rc;
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} while (true);
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}
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Result MapUtils::MapCodeMemoryForProcessModern(MappedCodeMemory &out_mcm, Handle process_handle, u64 base_address, u64 size) {
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AddressSpaceInfo address_space = {};
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Result rc;
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if (R_FAILED((rc = GetAddressSpaceInfo(&address_space, process_handle)))) {
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return rc;
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}
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R_TRY(GetAddressSpaceInfo(&address_space, process_handle));
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if (size > address_space.addspace_size) {
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return ResultRoInsufficientAddressSpace;
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}
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u64 try_address;
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for (unsigned int i = 0; i < LocateRetryCount; i++) {
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while (true) {
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@ -170,28 +154,26 @@ Result MapUtils::MapCodeMemoryForProcessModern(MappedCodeMemory &out_mcm, Handle
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break;
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}
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MappedCodeMemory tmp_mcm(process_handle, try_address, base_address, size);
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rc = tmp_mcm.GetResult();
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if (rc == ResultKernelInvalidMemoryState) {
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continue;
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}
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if (R_FAILED(rc)) {
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return rc;
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}
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R_TRY_CATCH(tmp_mcm.GetResult()) {
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R_CATCH(ResultKernelInvalidMemoryState) {
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continue;
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}
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} R_END_TRY_CATCH;
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if (!CanAddGuardRegions(process_handle, try_address, size)) {
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continue;
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}
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/* We're done searching. */
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out_mcm = std::move(tmp_mcm);
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return ResultSuccess;
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}
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return ResultRoInsufficientAddressSpace;
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}
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Result MapUtils::MapCodeMemoryForProcessDeprecated(MappedCodeMemory &out_mcm, Handle process_handle, bool is_64_bit, u64 base_address, u64 size) {
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Result rc;
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u64 addspace_base, addspace_size;
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if (is_64_bit) {
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addspace_base = 0x8000000ULL;
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@ -200,7 +182,7 @@ Result MapUtils::MapCodeMemoryForProcessDeprecated(MappedCodeMemory &out_mcm, Ha
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addspace_base = 0x200000ULL;
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addspace_size = 0x3FE0000ULL;
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}
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if (size > addspace_size) {
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return ResultRoInsufficientAddressSpace;
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}
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@ -210,48 +192,35 @@ Result MapUtils::MapCodeMemoryForProcessDeprecated(MappedCodeMemory &out_mcm, Ha
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try_address = addspace_base + (StratosphereRandomUtils::GetRandomU64((u64)(addspace_size - size) >> 12) << 12);
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MappedCodeMemory tmp_mcm(process_handle, try_address, base_address, size);
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rc = tmp_mcm.GetResult();
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if (rc == ResultKernelInvalidMemoryState) {
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continue;
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}
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if (R_FAILED(rc)) {
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return rc;
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}
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R_TRY_CATCH(tmp_mcm.GetResult()) {
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R_CATCH(ResultKernelInvalidMemoryState) {
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continue;
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}
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} R_END_TRY_CATCH;
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if (!CanAddGuardRegions(process_handle, try_address, size)) {
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continue;
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}
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/* We're done searching. */
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out_mcm = std::move(tmp_mcm);
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return ResultSuccess;
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}
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return ResultRoInsufficientAddressSpace;
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}
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Result MapUtils::GetAddressSpaceInfo(AddressSpaceInfo *out, Handle process_h) {
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Result rc;
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if (R_FAILED((rc = svcGetInfo(&out->heap_base, 4, process_h, 0)))) {
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return rc;
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}
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if (R_FAILED((rc = svcGetInfo(&out->heap_size, 5, process_h, 0)))) {
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return rc;
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}
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if (R_FAILED((rc = svcGetInfo(&out->map_base, 2, process_h, 0)))) {
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return rc;
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}
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if (R_FAILED((rc = svcGetInfo(&out->map_size, 3, process_h, 0)))) {
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return rc;
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}
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if (R_FAILED((rc = svcGetInfo(&out->addspace_base, 12, process_h, 0)))) {
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return rc;
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}
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if (R_FAILED((rc = svcGetInfo(&out->addspace_size, 13, process_h, 0)))) {
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return rc;
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}
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R_TRY(svcGetInfo(&out->heap_base, 4, process_h, 0));
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R_TRY(svcGetInfo(&out->heap_size, 5, process_h, 0));
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R_TRY(svcGetInfo(&out->map_base, 2, process_h, 0));
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R_TRY(svcGetInfo(&out->map_size, 3, process_h, 0));
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R_TRY(svcGetInfo(&out->addspace_base, 12, process_h, 0));
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R_TRY(svcGetInfo(&out->addspace_size, 13, process_h, 0));
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out->heap_end = out->heap_base + out->heap_size;
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out->map_end = out->map_base + out->map_size;
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out->addspace_end = out->addspace_base + out->addspace_size;
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return ResultSuccess;
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}
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}
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@ -131,6 +131,6 @@ class MapUtils {
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static Result MapCodeMemoryForProcessModern(MappedCodeMemory &out_mcm, Handle process_handle, u64 base_address, u64 size);
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public:
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static Result LocateSpaceForMap(u64 *out, u64 out_size);
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static Result MapCodeMemoryForProcess(MappedCodeMemory &out_mcm, Handle process_handle, bool is_64_bit, u64 base_address, u64 size);
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static Result MapCodeMemoryForProcess(MappedCodeMemory &out_mcm, Handle process_handle, u64 base_address, u64 size);
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static bool CanAddGuardRegions(Handle process_handle, u64 address, u64 size);
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};
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@ -13,7 +13,7 @@
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <switch.h>
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#include <cstdio>
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#include <algorithm>
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@ -24,22 +24,22 @@
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Result NrrUtils::ValidateNrrSignature(const NrrHeader *header) {
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/* TODO: Implement RSA-2048 PSS..... */
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/* TODO: Check PSS fixed-key signature. */
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if (false) {
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return ResultRoNotAuthorized;
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}
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/* Check TitleID pattern is valid. */
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if ((header->title_id & header->title_id_mask) != header->title_id_pattern) {
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return ResultRoNotAuthorized;
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}
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/* TODO: Check PSS signature over hashes. */
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if (false) {
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return ResultRoNotAuthorized;
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}
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return ResultSuccess;
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}
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@ -50,24 +50,21 @@ Result NrrUtils::ValidateNrr(const NrrHeader *header, u64 size, u64 title_id, Ro
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if (header->nrr_size != size) {
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return ResultRoInvalidSize;
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}
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bool ease_nro_restriction = Registration::ShouldEaseNroRestriction();
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/* Check signature. */
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Result rc = ValidateNrrSignature(header);
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if (R_FAILED(rc)) {
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if (!ease_nro_restriction) {
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return rc;
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}
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if (!ease_nro_restriction) {
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R_TRY(ValidateNrrSignature(header));
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}
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/* Check title id. */
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if (title_id != header->title_id) {
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if (!ease_nro_restriction) {
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return ResultRoInvalidNrr;
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}
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}
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/* Check type. */
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if (GetRuntimeFirmwareVersion() >= FirmwareVersion_700) {
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if (!enforce_type || expected_type != static_cast<RoModuleType>(header->nrr_type)) {
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@ -76,6 +73,6 @@ Result NrrUtils::ValidateNrr(const NrrHeader *header, u64 size, u64 title_id, Ro
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}
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}
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}
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return ResultSuccess;
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}
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@ -151,10 +151,7 @@ Result Registration::LoadNrr(RoProcessContext *context, u64 title_id, u64 nrr_ad
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/* Map. */
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NrrHeader *header = nullptr;
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u64 mapped_code_address = 0;
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Result rc = MapAndValidateNrr(&header, &mapped_code_address, context->process_handle, title_id, nrr_address, nrr_size, expected_type, enforce_type);
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if (R_FAILED(rc)) {
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return rc;
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}
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R_TRY(MapAndValidateNrr(&header, &mapped_code_address, context->process_handle, title_id, nrr_address, nrr_size, expected_type, enforce_type));
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/* Set NRR info. */
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nrr_info->header = header;
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@ -237,23 +234,18 @@ Result Registration::LoadNro(u64 *out_address, RoProcessContext *context, u64 nr
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nro_info->bss_heap_size = bss_size;
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/* Map the NRO. */
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Result rc = MapNro(&nro_info->base_address, context->process_handle, nro_address, nro_size, bss_address, bss_size);
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if (R_FAILED(rc)) {
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return rc;
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}
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R_TRY(MapNro(&nro_info->base_address, context->process_handle, nro_address, nro_size, bss_address, bss_size));
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/* Validate the NRO (parsing region extents). */
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u64 rx_size, ro_size, rw_size;
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if (R_FAILED((rc = ValidateNro(&nro_info->module_id, &rx_size, &ro_size, &rw_size, context, nro_info->base_address, nro_size, bss_size)))) {
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R_TRY_CLEANUP(ValidateNro(&nro_info->module_id, &rx_size, &ro_size, &rw_size, context, nro_info->base_address, nro_size, bss_size), {
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UnmapNro(context->process_handle, nro_info->base_address, nro_address, bss_address, bss_size, nro_size, 0);
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return rc;
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}
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});
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/* Set NRO perms. */
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if (R_FAILED((rc = SetNroPerms(context->process_handle, nro_info->base_address, rx_size, ro_size, rw_size + bss_size)))) {
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R_TRY_CLEANUP(SetNroPerms(context->process_handle, nro_info->base_address, rx_size, ro_size, rw_size + bss_size), {
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UnmapNro(context->process_handle, nro_info->base_address, nro_address, bss_address, bss_size, rx_size + ro_size, rw_size);
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return rc;
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}
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});
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nro_info->code_size = rx_size + ro_size;
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nro_info->rw_size = rw_size;
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@ -337,20 +329,13 @@ Result Registration::ValidateNro(ModuleId *out_module_id, u64 *out_rx_size, u64
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}
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Result Registration::SetNroPerms(Handle process_handle, u64 base_address, u64 rx_size, u64 ro_size, u64 rw_size) {
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Result rc;
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const u64 rx_offset = 0;
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const u64 ro_offset = rx_offset + rx_size;
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const u64 rw_offset = ro_offset + ro_size;
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if (R_FAILED((rc = svcSetProcessMemoryPermission(process_handle, base_address + rx_offset, rx_size, 5)))) {
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return rc;
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}
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if (R_FAILED((rc = svcSetProcessMemoryPermission(process_handle, base_address + ro_offset, ro_size, 1)))) {
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return rc;
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}
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if (R_FAILED((rc = svcSetProcessMemoryPermission(process_handle, base_address + rw_offset, rw_size, 3)))) {
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return rc;
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}
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R_TRY(svcSetProcessMemoryPermission(process_handle, base_address + rx_offset, rx_size, Perm_Rx));
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R_TRY(svcSetProcessMemoryPermission(process_handle, base_address + ro_offset, ro_size, Perm_R ));
|
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R_TRY(svcSetProcessMemoryPermission(process_handle, base_address + rw_offset, rw_size, Perm_Rw));
|
||||
|
||||
return ResultSuccess;
|
||||
}
|
||||
|
|
@ -387,19 +372,10 @@ Result Registration::UnloadNro(RoProcessContext *context, u64 nro_address) {
|
|||
}
|
||||
|
||||
Result Registration::MapAndValidateNrr(NrrHeader **out_header, u64 *out_mapped_code_address, Handle process_handle, u64 title_id, u64 nrr_heap_address, u64 nrr_heap_size, RoModuleType expected_type, bool enforce_type) {
|
||||
Result rc;
|
||||
MappedCodeMemory nrr_mcm;
|
||||
|
||||
/* First, map the NRR. */
|
||||
if (R_FAILED((rc = MapUtils::MapCodeMemoryForProcess(nrr_mcm, process_handle, true, nrr_heap_address, nrr_heap_size)))) {
|
||||
if (GetRuntimeFirmwareVersion() < FirmwareVersion_300) {
|
||||
/* Try mapping as 32-bit, since we might have guessed wrong on < 3.0.0. */
|
||||
rc = MapUtils::MapCodeMemoryForProcess(nrr_mcm, process_handle, false, nrr_heap_address, nrr_heap_size);
|
||||
}
|
||||
if (R_FAILED(rc)) {
|
||||
return rc;
|
||||
}
|
||||
}
|
||||
R_TRY(MapUtils::MapCodeMemoryForProcess(nrr_mcm, process_handle, nrr_heap_address, nrr_heap_size));
|
||||
|
||||
const u64 code_address = nrr_mcm.GetDstAddress();
|
||||
u64 map_address;
|
||||
|
|
@ -414,9 +390,7 @@ Result Registration::MapAndValidateNrr(NrrHeader **out_header, u64 *out_mapped_c
|
|||
}
|
||||
|
||||
NrrHeader *nrr_header = reinterpret_cast<NrrHeader *>(map_address);
|
||||
if (R_FAILED((rc = NrrUtils::ValidateNrr(nrr_header, nrr_heap_size, title_id, expected_type, enforce_type)))) {
|
||||
return rc;
|
||||
}
|
||||
R_TRY(NrrUtils::ValidateNrr(nrr_header, nrr_heap_size, title_id, expected_type, enforce_type));
|
||||
|
||||
/* Invalidation here actually prevents them from unmapping at scope exit. */
|
||||
nrr_map.Invalidate();
|
||||
|
|
@ -428,16 +402,11 @@ Result Registration::MapAndValidateNrr(NrrHeader **out_header, u64 *out_mapped_c
|
|||
}
|
||||
|
||||
Result Registration::UnmapNrr(Handle process_handle, const NrrHeader *header, u64 nrr_heap_address, u64 nrr_heap_size, u64 mapped_code_address) {
|
||||
Result rc = svcUnmapProcessMemory((void *)header, process_handle, mapped_code_address, nrr_heap_size);
|
||||
if (R_FAILED(rc)) {
|
||||
return rc;
|
||||
}
|
||||
|
||||
R_TRY(svcUnmapProcessMemory((void *)header, process_handle, mapped_code_address, nrr_heap_size));
|
||||
return svcUnmapProcessCodeMemory(process_handle, mapped_code_address, nrr_heap_address, nrr_heap_size);
|
||||
}
|
||||
|
||||
Result Registration::MapNro(u64 *out_base_address, Handle process_handle, u64 nro_heap_address, u64 nro_heap_size, u64 bss_heap_address, u64 bss_heap_size) {
|
||||
Result rc;
|
||||
MappedCodeMemory nro_mcm;
|
||||
MappedCodeMemory bss_mcm;
|
||||
u64 base_address;
|
||||
|
|
@ -446,28 +415,16 @@ Result Registration::MapNro(u64 *out_base_address, Handle process_handle, u64 nr
|
|||
size_t i = 0;
|
||||
for (i = 0; i < MapUtils::LocateRetryCount; i++) {
|
||||
MappedCodeMemory tmp_nro_mcm;
|
||||
bool is_64_bit = true;
|
||||
if (R_FAILED((rc = MapUtils::MapCodeMemoryForProcess(tmp_nro_mcm, process_handle, is_64_bit, nro_heap_address, nro_heap_size)))) {
|
||||
if (GetRuntimeFirmwareVersion() < FirmwareVersion_300) {
|
||||
/* Try mapping as 32-bit, since we might have guessed wrong on < 3.0.0. */
|
||||
is_64_bit = false;
|
||||
rc = MapUtils::MapCodeMemoryForProcess(tmp_nro_mcm, process_handle, is_64_bit, nro_heap_address, nro_heap_size);
|
||||
}
|
||||
if (R_FAILED(rc)) {
|
||||
return rc;
|
||||
}
|
||||
}
|
||||
R_TRY(MapUtils::MapCodeMemoryForProcess(tmp_nro_mcm, process_handle, nro_heap_address, nro_heap_size));
|
||||
base_address = tmp_nro_mcm.GetDstAddress();
|
||||
|
||||
if (bss_heap_size > 0) {
|
||||
MappedCodeMemory tmp_bss_mcm(process_handle, base_address + nro_heap_size, bss_heap_address, bss_heap_size);
|
||||
rc = tmp_bss_mcm.GetResult();
|
||||
if (rc == ResultKernelInvalidMemoryState) {
|
||||
continue;
|
||||
}
|
||||
if (R_FAILED(rc)) {
|
||||
return rc;
|
||||
}
|
||||
R_TRY_CATCH(tmp_bss_mcm.GetResult()) {
|
||||
R_CATCH(ResultKernelInvalidMemoryState) {
|
||||
continue;
|
||||
}
|
||||
} R_END_TRY_CATCH;
|
||||
|
||||
if (!MapUtils::CanAddGuardRegions(process_handle, base_address, nro_heap_size + bss_heap_size)) {
|
||||
continue;
|
||||
|
|
@ -495,26 +452,18 @@ Result Registration::MapNro(u64 *out_base_address, Handle process_handle, u64 nr
|
|||
}
|
||||
|
||||
Result Registration::UnmapNro(Handle process_handle, u64 base_address, u64 nro_heap_address, u64 bss_heap_address, u64 bss_heap_size, u64 code_size, u64 rw_size) {
|
||||
Result rc;
|
||||
|
||||
/* First, unmap bss. */
|
||||
if (bss_heap_size > 0) {
|
||||
if (R_FAILED((rc = svcUnmapProcessCodeMemory(process_handle, base_address + code_size + rw_size, bss_heap_address, bss_heap_size)))) {
|
||||
return rc;
|
||||
}
|
||||
R_TRY(svcUnmapProcessCodeMemory(process_handle, base_address + code_size + rw_size, bss_heap_address, bss_heap_size));
|
||||
}
|
||||
|
||||
/* Next, unmap .rwdata */
|
||||
if (rw_size > 0) {
|
||||
if (R_FAILED((rc = svcUnmapProcessCodeMemory(process_handle, base_address + code_size, nro_heap_address + code_size, rw_size)))) {
|
||||
return rc;
|
||||
}
|
||||
R_TRY(svcUnmapProcessCodeMemory(process_handle, base_address + code_size, nro_heap_address + code_size, rw_size));
|
||||
}
|
||||
|
||||
/* Finally, unmap .text + .rodata. */
|
||||
if (R_FAILED((rc = svcUnmapProcessCodeMemory(process_handle, base_address, nro_heap_address, code_size)))) {
|
||||
return rc;
|
||||
}
|
||||
R_TRY(svcUnmapProcessCodeMemory(process_handle, base_address, nro_heap_address, code_size));
|
||||
|
||||
return ResultSuccess;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue