dumpstate: gsa: Add GSA logs to dumpstate
New Stuff:
* Add program to read the GSA logs
Evidence:
avc: denied { read } for comm="dump_gsa" name="gsa-log1" dev="tmpfs" ino=1261 scontext=u:r:dump_gsa:s0 tcontext=u:object_r:gsa_log_device:s0 tclass=chr_file permissive=0
avc: denied { read } for comm="dump_gsa" name="gsa-bl1-log2" dev="tmpfs" ino=1222 scontext=u:r:dump_gsa:s0 tcontext=u:object_r:gsa_log_device:s0 tclass=chr_file permissive=0
Bug: 360205716
Test: adb shell dumpstate and check the dumpstate_board.txt for GSA logs
Flag: EXEMPT debug only
Change-Id: I4ea35da7916273cf526570067f24145ef4fb14f1
Signed-off-by: Thomas Flucke <tflucke@google.com>
diff --git a/gsa/Android.bp b/gsa/Android.bp
new file mode 100644
index 0000000..59e0369
--- /dev/null
+++ b/gsa/Android.bp
@@ -0,0 +1,20 @@
+package {
+ default_applicable_licenses: ["Android-Apache-2.0"],
+}
+
+cc_binary {
+ name: "dump_gsa",
+ srcs: ["dump_gsa.cpp"],
+ init_rc: ["init.gsa.rc"],
+ cflags: [
+ "-Wall",
+ "-Wextra",
+ "-Werror",
+ "-pedantic",
+ ],
+ shared_libs: [
+ "libdump",
+ ],
+ vendor: true,
+ relative_install_path: "dump",
+}
diff --git a/gsa/dump_gsa.cpp b/gsa/dump_gsa.cpp
new file mode 100644
index 0000000..6308036
--- /dev/null
+++ b/gsa/dump_gsa.cpp
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <dump/pixel_dump.h>
+#include <unistd.h>
+
+#define DIM(arr) (sizeof(arr) / sizeof(arr[0]))
+
+const char* paths[][2] = {{"GSA MAIN LOG", "/dev/gsa-log1"},
+ {"GSA INTERMEDIATE LOG", "/dev/gsa-bl1-log2"}};
+
+int main() {
+ for (size_t i = 0; i < DIM(paths); i++) {
+ if (!access(paths[i][1], R_OK)) {
+ dumpFileContent(paths[i][0], paths[i][1]);
+ }
+ }
+ return 0;
+}
diff --git a/gsa/gsa.mk b/gsa/gsa.mk
new file mode 100644
index 0000000..1938c66
--- /dev/null
+++ b/gsa/gsa.mk
@@ -0,0 +1,3 @@
+BOARD_VENDOR_SEPOLICY_DIRS += device/google/gs-common/gsa/sepolicy/gsa
+
+PRODUCT_PACKAGES += dump_gsa
diff --git a/gsa/init.gsa.rc b/gsa/init.gsa.rc
new file mode 100644
index 0000000..357144e
--- /dev/null
+++ b/gsa/init.gsa.rc
@@ -0,0 +1,6 @@
+on init
+ # Change GSA log group for dumpstate
+ chmod 660 /dev/gsa-log1
+ chmod 660 /dev/gsa-bl1-log2
+ chown root system /dev/gsa-log1
+ chown root system /dev/gsa-bl1-log2
diff --git a/gsa/sepolicy/gsa/dump_gsa.te b/gsa/sepolicy/gsa/dump_gsa.te
new file mode 100644
index 0000000..dcc3ef6
--- /dev/null
+++ b/gsa/sepolicy/gsa/dump_gsa.te
@@ -0,0 +1,6 @@
+# GSA
+pixel_bugreport(dump_gsa)
+
+userdebug_or_eng(`
+ allow dump_gsa gsa_log_device:chr_file r_file_perms;
+')
diff --git a/gsa/sepolicy/gsa/file.te b/gsa/sepolicy/gsa/file.te
new file mode 100644
index 0000000..46a1732
--- /dev/null
+++ b/gsa/sepolicy/gsa/file.te
@@ -0,0 +1,2 @@
+# GSA
+type gsa_log_device, dev_type;
diff --git a/gsa/sepolicy/gsa/file_contexts b/gsa/sepolicy/gsa/file_contexts
new file mode 100644
index 0000000..ad3a72d
--- /dev/null
+++ b/gsa/sepolicy/gsa/file_contexts
@@ -0,0 +1,4 @@
+# GSA
+/dev/gsa-log1 u:object_r:gsa_log_device:s0
+/dev/gsa-bl1-log2 u:object_r:gsa_log_device:s0
+/vendor/bin/dump/dump_gsa u:object_r:dump_gsa_exec:s0