* [LTP] [PATCH v2] Add mkdir10 test
@ 2024-02-07 15:21 Andrea Cervesato
2024-02-09 22:41 ` Petr Vorel
0 siblings, 1 reply; 3+ messages in thread
From: Andrea Cervesato @ 2024-02-07 15:21 UTC (permalink / raw)
To: ltp
From: Andrea Cervesato <andrea.cervesato@suse.com>
This test has been extracted from symlink01 and it verifies that
mkdir() can't overwrite certain types of files, such as simlinks,
directories, pipes, devices, etc.
Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.com>
---
runtest/syscalls | 2 +-
testcases/kernel/syscalls/mkdir/.gitignore | 1 +
testcases/kernel/syscalls/mkdir/mkdir10.c | 57 ++++++++++++++++++++++
3 files changed, 59 insertions(+), 1 deletion(-)
create mode 100644 testcases/kernel/syscalls/mkdir/mkdir10.c
diff --git a/runtest/syscalls b/runtest/syscalls
index 2af7ade9c..7f4edb901 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -757,8 +757,8 @@ mkdir02 mkdir02
mkdir03 mkdir03
mkdir04 mkdir04
mkdir05 mkdir05
-mkdir05A symlink01 -T mkdir05
mkdir09 mkdir09
+mkdir10 mkdir10
#mkdirat test cases
mkdirat01 mkdirat01
diff --git a/testcases/kernel/syscalls/mkdir/.gitignore b/testcases/kernel/syscalls/mkdir/.gitignore
index 880ff50c0..416fbbd7c 100644
--- a/testcases/kernel/syscalls/mkdir/.gitignore
+++ b/testcases/kernel/syscalls/mkdir/.gitignore
@@ -3,3 +3,4 @@
/mkdir04
/mkdir05
/mkdir09
+/mkdir10
diff --git a/testcases/kernel/syscalls/mkdir/mkdir10.c b/testcases/kernel/syscalls/mkdir/mkdir10.c
new file mode 100644
index 000000000..87f419916
--- /dev/null
+++ b/testcases/kernel/syscalls/mkdir/mkdir10.c
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
+ * Author: David Fenner
+ * Copilot: Jon Hendrickson
+ * Copyright (C) 2024 Andrea Cervesato andrea.cervesato@suse.com
+ */
+
+/*\
+ * [Description]
+ *
+ * This test verifies that mkdir() can't overwrite certain generated files, such
+ * as symlinks, pipes, devices, folders, etc.
+ */
+
+#include "tst_test.h"
+
+#define FILE_FOLDER "myfolder"
+#define FILE_MYFILE "myfile"
+#define FILE_FIFO "mypipe"
+#define FILE_SYMLINK "mylink"
+#define FILE_DEVICE "/dev/null"
+
+struct tcase {
+ char *file;
+ char *msg;
+};
+
+static struct tcase tcases[] = {
+ {FILE_FOLDER, "folder already exists"},
+ {FILE_MYFILE, "file already exists"},
+ {FILE_FIFO, "fifo already exists"},
+ {FILE_SYMLINK, "symlink already exists"},
+ {FILE_DEVICE, "device already exists"},
+};
+
+static void run(unsigned int i)
+{
+ struct tcase *tc = &tcases[i];
+
+ TST_EXP_FAIL(mkdir(tc->file, 0777), EEXIST, "%s", tc->msg);
+}
+
+static void setup(void)
+{
+ SAFE_SYMLINK(tst_get_tmpdir(), FILE_SYMLINK);
+ SAFE_MKFIFO(FILE_FIFO, 0777);
+ SAFE_MKDIR(FILE_FOLDER, 0777);
+ SAFE_TOUCH(FILE_MYFILE, 0777, NULL);
+}
+
+static struct tst_test test = {
+ .test = run,
+ .tcnt = ARRAY_SIZE(tcases),
+ .setup = setup,
+ .needs_tmpdir = 1,
+};
--
2.35.3
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^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [LTP] [PATCH v2] Add mkdir10 test
2024-02-07 15:21 [LTP] [PATCH v2] Add mkdir10 test Andrea Cervesato
@ 2024-02-09 22:41 ` Petr Vorel
2024-02-20 12:34 ` Andrea Cervesato via ltp
0 siblings, 1 reply; 3+ messages in thread
From: Petr Vorel @ 2024-02-09 22:41 UTC (permalink / raw)
To: Andrea Cervesato; +Cc: ltp
Hi Andrea,
I was thinking if this is filesystem specific (struct inode_operations mkdir
member is in fs/*/*.c - all filesystems), but it looks to me that code which
checks for EEXIST is in may_create() in fs/namei.c, which is VFS. Therefore
there is really no point to use .all_filesystems = 1.
LGTM, just few nits below.
Reviewed-by: Petr Vorel <pvorel@suse.cz>
> From: Andrea Cervesato <andrea.cervesato@suse.com>
> This test has been extracted from symlink01 and it verifies that
> mkdir() can't overwrite certain types of files, such as simlinks,
^ symlinks
> directories, pipes, devices, etc.
> Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.com>
> ---
> runtest/syscalls | 2 +-
> testcases/kernel/syscalls/mkdir/.gitignore | 1 +
> testcases/kernel/syscalls/mkdir/mkdir10.c | 57 ++++++++++++++++++++++
> 3 files changed, 59 insertions(+), 1 deletion(-)
> create mode 100644 testcases/kernel/syscalls/mkdir/mkdir10.c
> diff --git a/runtest/syscalls b/runtest/syscalls
> index 2af7ade9c..7f4edb901 100644
> --- a/runtest/syscalls
> +++ b/runtest/syscalls
> @@ -757,8 +757,8 @@ mkdir02 mkdir02
> mkdir03 mkdir03
> mkdir04 mkdir04
> mkdir05 mkdir05
> -mkdir05A symlink01 -T mkdir05
This is not the case, but beware runtest/smoketest also use some of symlink
tests you recently rewrite.
> mkdir09 mkdir09
> +mkdir10 mkdir10
...
> --- /dev/null
> +++ b/testcases/kernel/syscalls/mkdir/mkdir10.c
> @@ -0,0 +1,57 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/*
> + * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
> + * Author: David Fenner
> + * Copilot: Jon Hendrickson
very nit:
Authors: David Fenner, Jon Hendrickson
> + * Copyright (C) 2024 Andrea Cervesato andrea.cervesato@suse.com
> + */
> +
> +/*\
> + * [Description]
> + *
> + * This test verifies that mkdir() can't overwrite certain generated files, such
> + * as symlinks, pipes, devices, folders, etc.
> + */
> +
> +#include "tst_test.h"
> +
> +#define FILE_FOLDER "myfolder"
> +#define FILE_MYFILE "myfile"
> +#define FILE_FIFO "mypipe"
> +#define FILE_SYMLINK "mylink"
> +#define FILE_DEVICE "/dev/null"
nit: _PATH_DEVNULL from <paths.h> defines "/dev/null".
> +
> +struct tcase {
> + char *file;
> + char *msg;
> +};
> +
> +static struct tcase tcases[] = {
> + {FILE_FOLDER, "folder already exists"},
> + {FILE_MYFILE, "file already exists"},
> + {FILE_FIFO, "fifo already exists"},
> + {FILE_SYMLINK, "symlink already exists"},
> + {FILE_DEVICE, "device already exists"},
very nit: "folder", "file", ...
TST_EXP_FAIL(mkdir(tc->file, 0777), EEXIST, "%s already exists", tc->msg);
Kind regards,
Petr
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^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [LTP] [PATCH v2] Add mkdir10 test
2024-02-09 22:41 ` Petr Vorel
@ 2024-02-20 12:34 ` Andrea Cervesato via ltp
0 siblings, 0 replies; 3+ messages in thread
From: Andrea Cervesato via ltp @ 2024-02-20 12:34 UTC (permalink / raw)
To: Petr Vorel, Andrea Cervesato; +Cc: ltp
Hi!
This test can be actually be merged with mkdir01, so I will send an
another patch for this use case.
Please ignore the patch.
Andrea
On 2/9/24 23:41, Petr Vorel wrote:
> Hi Andrea,
>
> I was thinking if this is filesystem specific (struct inode_operations mkdir
> member is in fs/*/*.c - all filesystems), but it looks to me that code which
> checks for EEXIST is in may_create() in fs/namei.c, which is VFS. Therefore
> there is really no point to use .all_filesystems = 1.
>
> LGTM, just few nits below.
> Reviewed-by: Petr Vorel <pvorel@suse.cz>
>
>> From: Andrea Cervesato <andrea.cervesato@suse.com>
>> This test has been extracted from symlink01 and it verifies that
>> mkdir() can't overwrite certain types of files, such as simlinks,
> ^ symlinks
>
>> directories, pipes, devices, etc.
>> Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.com>
>> ---
>> runtest/syscalls | 2 +-
>> testcases/kernel/syscalls/mkdir/.gitignore | 1 +
>> testcases/kernel/syscalls/mkdir/mkdir10.c | 57 ++++++++++++++++++++++
>> 3 files changed, 59 insertions(+), 1 deletion(-)
>> create mode 100644 testcases/kernel/syscalls/mkdir/mkdir10.c
>> diff --git a/runtest/syscalls b/runtest/syscalls
>> index 2af7ade9c..7f4edb901 100644
>> --- a/runtest/syscalls
>> +++ b/runtest/syscalls
>> @@ -757,8 +757,8 @@ mkdir02 mkdir02
>> mkdir03 mkdir03
>> mkdir04 mkdir04
>> mkdir05 mkdir05
>> -mkdir05A symlink01 -T mkdir05
> This is not the case, but beware runtest/smoketest also use some of symlink
> tests you recently rewrite.
>
>> mkdir09 mkdir09
>> +mkdir10 mkdir10
> ...
>> --- /dev/null
>> +++ b/testcases/kernel/syscalls/mkdir/mkdir10.c
>> @@ -0,0 +1,57 @@
>> +// SPDX-License-Identifier: GPL-2.0-or-later
>> +/*
>> + * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
>> + * Author: David Fenner
>> + * Copilot: Jon Hendrickson
> very nit:
> Authors: David Fenner, Jon Hendrickson
>
>> + * Copyright (C) 2024 Andrea Cervesato andrea.cervesato@suse.com
>> + */
>> +
>> +/*\
>> + * [Description]
>> + *
>> + * This test verifies that mkdir() can't overwrite certain generated files, such
>> + * as symlinks, pipes, devices, folders, etc.
>> + */
>> +
>> +#include "tst_test.h"
>> +
>> +#define FILE_FOLDER "myfolder"
>> +#define FILE_MYFILE "myfile"
>> +#define FILE_FIFO "mypipe"
>> +#define FILE_SYMLINK "mylink"
>> +#define FILE_DEVICE "/dev/null"
> nit: _PATH_DEVNULL from <paths.h> defines "/dev/null".
>> +
>> +struct tcase {
>> + char *file;
>> + char *msg;
>> +};
>> +
>> +static struct tcase tcases[] = {
>> + {FILE_FOLDER, "folder already exists"},
>> + {FILE_MYFILE, "file already exists"},
>> + {FILE_FIFO, "fifo already exists"},
>> + {FILE_SYMLINK, "symlink already exists"},
>> + {FILE_DEVICE, "device already exists"},
> very nit: "folder", "file", ...
>
> TST_EXP_FAIL(mkdir(tc->file, 0777), EEXIST, "%s already exists", tc->msg);
>
> Kind regards,
> Petr
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2024-02-07 15:21 [LTP] [PATCH v2] Add mkdir10 test Andrea Cervesato
2024-02-09 22:41 ` Petr Vorel
2024-02-20 12:34 ` Andrea Cervesato via ltp
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