From 3312456c44e39546975f8b06af79710865daeac7 Mon Sep 17 00:00:00 2001
From: linjun9528 <linjun27@huawei.com>
Date: Tue, 14 Jun 2022 20:10:59 +0800
Subject: [PATCH] add file access framework

Signed-off-by: linjun9528 <linjun27@huawei.com>
---
 appdata-sandbox.json        | 18 ++++++++++++++++++
 common/appspawn_server.h    |  1 +
 standard/appspawn_service.c |  8 ++++++++
 3 files changed, 27 insertions(+)

diff --git a/appdata-sandbox.json b/appdata-sandbox.json
index 5994d20f..de810d69 100644
--- a/appdata-sandbox.json
+++ b/appdata-sandbox.json
@@ -251,6 +251,24 @@
                 }
             ],
             "symbol-links" : []
+        }],
+        "com.ohos.UserFile.ExternalFileManager" : [{
+            "sandbox-switch": "ON",
+            "sandbox-root" : "/mnt/sandbox/<PackageName>",
+            "mount-bind-paths" : [{
+                    "src-path" : "/data/service/el1/public/storage_daemon/share/public",
+                    "sandbox-path" : "/data/storage/el1/bundle/storage_daemon",
+                    "sandbox-flags" : [ "bind", "rec" ],
+                    "check-action-status": "true"
+                },
+                {
+                    "src-path" : "/mnt/external",
+                    "sandbox-path" : "/mnt/external",
+                    "sandbox-flags" : [ "bind", "rec" ],
+                    "check-action-status": "true"
+                }
+            ],
+            "symbol-links" : []
         }]
     }]
 }
diff --git a/common/appspawn_server.h b/common/appspawn_server.h
index c344470d..eb457ce0 100644
--- a/common/appspawn_server.h
+++ b/common/appspawn_server.h
@@ -34,6 +34,7 @@ extern "C" {
 #define ERR_PIPE_FAIL (-100)
 #define MAX_LEN_SHORT_NAME 16
 #define WAIT_DELAY_US (100 * 1000)  // 100ms
+#define GID_FILE_ACCESS 1006  // only used for ExternalFileManager.hap
 #define GID_USER_DATA_RW 1008
 
 typedef struct AppSpawnClient_ {
diff --git a/standard/appspawn_service.c b/standard/appspawn_service.c
index 570d3d9a..f26ea0de 100644
--- a/standard/appspawn_service.c
+++ b/standard/appspawn_service.c
@@ -203,6 +203,14 @@ static void SignalHandler(const struct signalfd_siginfo *siginfo)
 
 static void HandleSpecial(AppSpawnClientExt *appProperty)
 {
+    const char *fileExtensionHapBundleName = "com.ohos.UserFile.ExternalFileManager";
+    if (strcmp(appProperty->property.bundleName, fileExtensionHapBundleName) == 0) {
+        if (appProperty->property.gidCount < APP_MAX_GIDS) {
+            appProperty->property.gidTable[appProperty->property.gidCount] = GID_FILE_ACCESS;
+            appProperty->property.gidCount++;
+        }
+    }
+
     // special handle bundle name medialibrary and scanner
     const char *specialBundleNames[] = {
         "com.ohos.medialibrary.MediaLibraryDataA",
-- 
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