Adding bow dm-target

Test: Can load with dm-ctl
Change-Id: I0c6a750340fa6babcfa0f72b66c18a0b3eacd9d8

2 files changed, 20 insertions, 0 deletions

diff --git a/fs_mgr/libdm/include/libdm/dm_target.h b/fs_mgr/libdm/include/libdm/dm_target.h
index aab89e5f0..3fde95a4a 100644
--- a/fs_mgr/libdm/include/libdm/dm_target.h
+++ b/fs_mgr/libdm/include/libdm/dm_target.h
@@ -156,6 +156,18 @@ class DmTargetVerityString final : public DmTarget {
     std::string target_string_;
 };
 
+class DmTargetBow final : public DmTarget {
+  public:
+    DmTargetBow(uint64_t start, uint64_t length, const std::string& target_string)
+        : DmTarget(start, length), target_string_(target_string) {}
+
+    std::string name() const override { return "bow"; }
+    std::string GetParameterString() const override { return target_string_; }
+
+  private:
+    std::string target_string_;
+};
+
 }  // namespace dm
 }  // namespace android
 
diff --git a/fs_mgr/tools/dmctl.cpp b/fs_mgr/tools/dmctl.cpp
index 879ba2101..f78093bdf 100644
--- a/fs_mgr/tools/dmctl.cpp
+++ b/fs_mgr/tools/dmctl.cpp
@@ -42,6 +42,7 @@ using DmTarget = ::android::dm::DmTarget;
 using DmTargetLinear = ::android::dm::DmTargetLinear;
 using DmTargetZero = ::android::dm::DmTargetZero;
 using DmTargetAndroidVerity = ::android::dm::DmTargetAndroidVerity;
+using DmTargetBow = ::android::dm::DmTargetBow;
 using DmTargetTypeInfo = ::android::dm::DmTargetTypeInfo;
 using DmBlockDevice = ::android::dm::DeviceMapper::DmBlockDevice;
 
@@ -108,6 +109,13 @@ class TargetParser final {
             std::string block_device = NextArg();
             return std::make_unique<DmTargetAndroidVerity>(start_sector, num_sectors, keyid,
                                                            block_device);
+        } else if (target_type == "bow") {
+            if (!HasArgs(1)) {
+                std::cerr << "Expected \"bow\" <block_device>" << std::endl;
+                return nullptr;
+            }
+            std::string block_device = NextArg();
+            return std::make_unique<DmTargetBow>(start_sector, num_sectors, block_device);
         } else {
             std::cerr << "Unrecognized target type: " << target_type << std::endl;
             return nullptr;