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authorZach Hilman <zachhilman@gmail.com>2018-11-18 03:40:17 +0100
committerZach Hilman <zachhilman@gmail.com>2018-11-18 03:40:26 +0100
commit51af996854ce01da17750b0a1f8d2f3a95449cfc (patch)
tree097752e6d2a94a37fe482f5606ca67be8a33890b /src
parentldr_ro: Implement UnloadNro (command 1) (diff)
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Diffstat (limited to 'src')
-rw-r--r--src/core/hle/kernel/process.cpp4
-rw-r--r--src/core/hle/kernel/vm_manager.cpp6
-rw-r--r--src/core/hle/kernel/vm_manager.h3
-rw-r--r--src/core/hle/service/ldr/ldr.cpp27
4 files changed, 27 insertions, 13 deletions
diff --git a/src/core/hle/kernel/process.cpp b/src/core/hle/kernel/process.cpp
index f06b6bb55..a257c3726 100644
--- a/src/core/hle/kernel/process.cpp
+++ b/src/core/hle/kernel/process.cpp
@@ -252,8 +252,8 @@ ResultCode Process::HeapFree(VAddr target, u32 size) {
return vm_manager.HeapFree(target, size);
}
-ResultCode Process::MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size) {
- return vm_manager.MirrorMemory(dst_addr, src_addr, size);
+ResultCode Process::MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size, MemoryState state) {
+ return vm_manager.MirrorMemory(dst_addr, src_addr, size, state);
}
ResultCode Process::UnmapMemory(VAddr dst_addr, VAddr /*src_addr*/, u64 size) {
diff --git a/src/core/hle/kernel/vm_manager.cpp b/src/core/hle/kernel/vm_manager.cpp
index ec7fd6150..100f8f6bf 100644
--- a/src/core/hle/kernel/vm_manager.cpp
+++ b/src/core/hle/kernel/vm_manager.cpp
@@ -298,7 +298,7 @@ ResultCode VMManager::HeapFree(VAddr target, u64 size) {
return RESULT_SUCCESS;
}
-ResultCode VMManager::MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size) {
+ResultCode VMManager::MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size, MemoryState state) {
const auto vma = FindVMA(src_addr);
ASSERT_MSG(vma != vma_map.end(), "Invalid memory address");
@@ -312,8 +312,8 @@ ResultCode VMManager::MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size) {
const std::shared_ptr<std::vector<u8>>& backing_block = vma->second.backing_block;
const std::size_t backing_block_offset = vma->second.offset + vma_offset;
- CASCADE_RESULT(auto new_vma, MapMemoryBlock(dst_addr, backing_block, backing_block_offset, size,
- MemoryState::Mapped));
+ CASCADE_RESULT(auto new_vma,
+ MapMemoryBlock(dst_addr, backing_block, backing_block_offset, size, state));
// Protect mirror with permissions from old region
Reprotect(new_vma, vma->second.permissions);
// Remove permissions from old region
diff --git a/src/core/hle/kernel/vm_manager.h b/src/core/hle/kernel/vm_manager.h
index 248cc46dc..d522404fe 100644
--- a/src/core/hle/kernel/vm_manager.h
+++ b/src/core/hle/kernel/vm_manager.h
@@ -189,7 +189,8 @@ public:
ResultVal<VAddr> HeapAllocate(VAddr target, u64 size, VMAPermission perms);
ResultCode HeapFree(VAddr target, u64 size);
- ResultCode MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size);
+ ResultCode MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size,
+ MemoryState state = MemoryState::Mapped);
/**
* Scans all VMAs and updates the page table range of any that use the given vector as backing
diff --git a/src/core/hle/service/ldr/ldr.cpp b/src/core/hle/service/ldr/ldr.cpp
index 5f020cbe0..b43f1f054 100644
--- a/src/core/hle/service/ldr/ldr.cpp
+++ b/src/core/hle/service/ldr/ldr.cpp
@@ -18,6 +18,7 @@ namespace Service::LDR {
namespace ErrCodes {
enum {
+ InvalidMemoryState = 51,
InvalidNRO = 52,
InvalidNRR = 53,
MissingNRRHash = 54,
@@ -32,6 +33,7 @@ enum {
};
}
+constexpr ResultCode ERROR_INVALID_MEMORY_STATE(ErrorModule::Loader, ErrCodes::InvalidMemoryState);
constexpr ResultCode ERROR_INVALID_NRO(ErrorModule::Loader, ErrCodes::InvalidNRO);
constexpr ResultCode ERROR_INVALID_NRR(ErrorModule::Loader, ErrCodes::InvalidNRR);
constexpr ResultCode ERROR_MISSING_NRR_HASH(ErrorModule::Loader, ErrCodes::MissingNRRHash);
@@ -120,7 +122,7 @@ public:
return;
}
- if (nro.size() >= MAXIMUM_LOADED_RO) {
+ if (nrr.size() >= MAXIMUM_LOADED_RO) {
LOG_ERROR(Service_LDR, "Loading new NRR would exceed the maximum number of loaded NRRs "
"(0x40)! Failing...");
IPC::ResponseBuilder rb{ctx, 2};
@@ -178,10 +180,13 @@ public:
}
std::vector<SHA256Hash> hashes;
+
+ // Copy all hashes in the NRR (specified by hash count/hash offset) into vector.
for (std::size_t i = header.hash_offset;
- i < (header.hash_offset + (header.hash_count << 5)); i += 8) {
- hashes.emplace_back();
- std::memcpy(hashes.back().data(), nrr_data.data() + i, sizeof(SHA256Hash));
+ i < (header.hash_offset + (header.hash_count * sizeof(SHA256Hash))); i += 8) {
+ SHA256Hash hash;
+ std::memcpy(hash.data(), nrr_data.data() + i, sizeof(SHA256Hash));
+ hashes.emplace_back(hash);
}
nrr.insert_or_assign(nrr_addr, std::move(hashes));
@@ -258,8 +263,8 @@ public:
// NRO Size or BSS Size is zero or causes overflow
const auto nro_size_valid =
nro_size != 0 && nro_addr + nro_size > nro_addr && Common::Is4KBAligned(nro_size);
- const auto bss_size_valid = std::numeric_limits<u64>::max() - nro_size >= bss_size &&
- (bss_size == 0 || bss_addr + bss_size > bss_addr);
+ const auto bss_size_valid =
+ nro_size + bss_size >= nro_size && (bss_size == 0 || bss_addr + bss_size > bss_addr);
if (!nro_size_valid || !bss_size_valid) {
LOG_ERROR(Service_LDR,
@@ -313,7 +318,15 @@ public:
auto& vm_manager = process->VMManager();
auto map_address = vm_manager.FindFreeRegion(nro_size + bss_size);
- ASSERT(map_address.Succeeded());
+ if (!map_address.Succeeded() ||
+ *map_address + nro_size + bss_size > vm_manager.GetAddressSpaceEndAddress()) {
+
+ LOG_ERROR(Service_LDR,
+ "General error while allocation memory or no available memory to allocate!");
+ IPC::ResponseBuilder rb{ctx, 2};
+ rb.Push(ERROR_INVALID_MEMORY_STATE);
+ return;
+ }
ASSERT(process->MirrorMemory(*map_address, nro_addr, nro_size,
Kernel::MemoryState::ModuleCodeStatic) == RESULT_SUCCESS);