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UPSTREAM: selftests/binderfs: add test for feature files

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Verify that feature files are created successfully after mounting a
binderfs instance. Note that only "oneway_spam_detection" feature is
tested with this patch as it is currently the only feature listed.

Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20210715031805.1725878-3-cmllamas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 07e913418c)
Bug: 191910201
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Change-Id: I86d7ef34b3099c8714c319e48029aaf3dbf87081
This commit is contained in:
Carlos Llamas
2021-07-15 03:18:05 +00:00
parent 28cbcfe380
commit 3edb997749
1 changed files with 17 additions and 0 deletions
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17
tools/testing/selftests/filesystems/binderfs/binderfs_test.c
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@@ -62,6 +62,9 @@ static int __do_binderfs_test(struct __test_metadata *_metadata)
struct binder_version version = { 0 };
char binderfs_mntpt[] = P_tmpdir "/binderfs_XXXXXX",
device_path[sizeof(P_tmpdir "/binderfs_XXXXXX/") + BINDERFS_MAX_NAME];
static const char * const binder_features[] = {
"oneway_spam_detection",
};
change_mountns(_metadata);
@@ -150,6 +153,20 @@ static int __do_binderfs_test(struct __test_metadata *_metadata)
}
/* success: binder-control device removal failed as expected */
for (int i = 0; i < ARRAY_SIZE(binder_features); i++) {
snprintf(device_path, sizeof(device_path), "%s/features/%s",
binderfs_mntpt, binder_features[i]);
fd = open(device_path, O_CLOEXEC | O_RDONLY);
EXPECT_GE(fd, 0) {
TH_LOG("%s - Failed to open binder feature: %s",
strerror(errno), binder_features[i]);
goto umount;
}
close(fd);
}
/* success: binder feature files found */
result = 0;
umount: