Update fs_mgr_update_verity_state() for new C++ Fstab

Bug: 62292478
Test: boot and check verity state
Change-Id: I4912a16ada9a6d72480d7ac905654b764c5d18b6

fs_mgr/fs_mgr.cpp

@@ -1533,7 +1533,8 @@ bool fs_mgr_load_verity_state(int* mode) {
     return true;
 }
 
-bool fs_mgr_update_verity_state(std::function<fs_mgr_verity_state_callback> callback) {
+bool fs_mgr_update_verity_state(
+        std::function<void(const std::string& mount_point, int mode)> callback) {
     if (!callback) {
         return false;
     }
@@ -1543,27 +1544,25 @@ bool fs_mgr_update_verity_state(std::function<fs_mgr_verity_state_callback> call
         return false;
     }
 
-    std::unique_ptr<fstab, decltype(&fs_mgr_free_fstab)> fstab(fs_mgr_read_fstab_default(),
-                                                               fs_mgr_free_fstab);
-    if (!fstab) {
+    Fstab fstab;
+    if (!ReadDefaultFstab(&fstab)) {
         LERROR << "Failed to read default fstab";
         return false;
     }
 
     DeviceMapper& dm = DeviceMapper::Instance();
 
-    for (int i = 0; i < fstab->num_entries; i++) {
-        auto fsrec = &fstab->recs[i];
-        if (!fs_mgr_is_verified(fsrec) && !fs_mgr_is_avb(fsrec)) {
+    for (const auto& entry : fstab) {
+        if (!entry.fs_mgr_flags.verify && !entry.fs_mgr_flags.avb) {
             continue;
         }
 
         std::string mount_point;
-        if (!strcmp(fsrec->mount_point, "/")) {
+        if (entry.mount_point == "/") {
             // In AVB, the dm device name is vroot instead of system.
-            mount_point = fs_mgr_is_avb(fsrec) ? "vroot" : "system";
+            mount_point = entry.fs_mgr_flags.avb ? "vroot" : "system";
         } else {
-            mount_point = basename(fsrec->mount_point);
+            mount_point = basename(entry.mount_point.c_str());
         }
 
         if (dm.GetState(mount_point) == DmDeviceState::INVALID) {
@@ -1574,7 +1573,7 @@ bool fs_mgr_update_verity_state(std::function<fs_mgr_verity_state_callback> call
         const char* status;
         std::vector<DeviceMapper::TargetInfo> table;
         if (!dm.GetTableStatus(mount_point, &table) || table.empty() || table[0].data.empty()) {
-            if (!fs_mgr_is_verifyatboot(fsrec)) {
+            if (!entry.fs_mgr_flags.verify_at_boot) {
                 PERROR << "Failed to query DM_TABLE_STATUS for " << mount_point;
                 continue;
             }
@@ -1588,7 +1587,7 @@ bool fs_mgr_update_verity_state(std::function<fs_mgr_verity_state_callback> call
         // instead of [partition.vroot.verified].
         if (mount_point == "vroot") mount_point = "system";
         if (*status == 'C' || *status == 'V') {
-            callback(fsrec, mount_point.c_str(), mode, *status);
+            callback(mount_point, mode);
         }
     }
 

fs_mgr/fs_mgr_overlayfs.cpp

@@ -277,9 +277,8 @@ bool fs_mgr_overlayfs_already_mounted(const std::string& mount_point, bool overl
 
 std::vector<std::string> fs_mgr_overlayfs_verity_enabled_list() {
     std::vector<std::string> ret;
-    fs_mgr_update_verity_state([&ret](fstab_rec*, const char* mount_point, int, int) {
-        ret.emplace_back(mount_point);
-    });
+    fs_mgr_update_verity_state(
+            [&ret](const std::string& mount_point, int) { ret.emplace_back(mount_point); });
     return ret;
 }
 

fs_mgr/include/fs_mgr.h

@@ -50,10 +50,6 @@ enum mount_mode {
     MOUNT_MODE_LATE = 2
 };
 
-// Callback function for verity status
-typedef void fs_mgr_verity_state_callback(fstab_rec* fstab, const char* mount_point, int mode,
-                                          int status);
-
 #define FS_MGR_MNTALL_DEV_IS_METADATA_ENCRYPTED 7
 #define FS_MGR_MNTALL_DEV_NEEDS_METADATA_ENCRYPTION 6
 #define FS_MGR_MNTALL_DEV_FILE_ENCRYPTED 5
@@ -77,7 +73,8 @@ int fs_mgr_do_tmpfs_mount(const char *n_name);
 fstab_rec const* fs_mgr_get_crypt_entry(fstab const* fstab);
 void fs_mgr_get_crypt_info(fstab* fstab, char* key_loc, char* real_blk_device, size_t size);
 bool fs_mgr_load_verity_state(int* mode);
-bool fs_mgr_update_verity_state(std::function<fs_mgr_verity_state_callback> callback);
+bool fs_mgr_update_verity_state(
+        std::function<void(const std::string& mount_point, int mode)> callback);
 bool fs_mgr_swapon_all(const Fstab& fstab);
 bool fs_mgr_update_logical_partition(struct fstab_rec* rec);
 

init/builtins.cpp

@@ -734,13 +734,10 @@ static Result<Success> do_verity_load_state(const BuiltinArguments& args) {
     return Success();
 }
 
-static void verity_update_property(fstab_rec *fstab, const char *mount_point,
-                                   int mode, int status) {
-    property_set("partition."s + mount_point + ".verified", std::to_string(mode));
-}
-
 static Result<Success> do_verity_update_state(const BuiltinArguments& args) {
-    if (!fs_mgr_update_verity_state(verity_update_property)) {
+    if (!fs_mgr_update_verity_state([](const std::string& mount_point, int mode) {
+            property_set("partition." + mount_point + ".verified", std::to_string(mode));
+        })) {
         return Error() << "fs_mgr_update_verity_state() failed";
     }
     return Success();