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SubjectRe: [PATCH 3/4] AppArmor: add "file" details to securityfs
On 01/26/2012 04:29 PM, Kees Cook wrote:
> Create the "file" directory in the securityfs for tracking features
> related to files.
>
> Signed-off-by: Kees Cook <kees@ubuntu.com>
Acked-by: John Johansen <john.johansen@canonical.com>

> ---
> security/apparmor/apparmorfs.c | 10 ++++++++++
> security/apparmor/include/apparmorfs.h | 6 ++++++
> 2 files changed, 16 insertions(+), 0 deletions(-)
>
> diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c
> index 36efe64..68ce771 100644
> --- a/security/apparmor/apparmorfs.c
> +++ b/security/apparmor/apparmorfs.c
> @@ -154,6 +154,9 @@ static int aa_fs_seq_show(struct seq_file *seq, void *v)
> case AA_FS_TYPE_BOOLEAN:
> seq_printf(seq, "%s\n", fs_file->v.boolean ? "yes" : "no");
> break;
> + case AA_FS_TYPE_STRING:
> + seq_printf(seq, "%s\n", fs_file->v.string);
> + break;
> case AA_FS_TYPE_U64:
> seq_printf(seq, "%#08lx\n", fs_file->v.u64);
> break;
> @@ -180,6 +183,12 @@ const struct file_operations aa_fs_seq_file_ops = {
>
> /** Base file system setup **/
>
> +static struct aa_fs_entry aa_fs_entry_file[] = {
> + AA_FS_FILE_STRING("mask", "create read write exec append mmap_exec " \
> + "link lock"),
> + { }
> +};
> +
> static struct aa_fs_entry aa_fs_entry_domain[] = {
> AA_FS_FILE_BOOLEAN("change_hat", 1),
> AA_FS_FILE_BOOLEAN("change_hatv", 1),
> @@ -190,6 +199,7 @@ static struct aa_fs_entry aa_fs_entry_domain[] = {
>
> static struct aa_fs_entry aa_fs_entry_features[] = {
> AA_FS_DIR("domain", aa_fs_entry_domain),
> + AA_FS_DIR("file", aa_fs_entry_file),
> AA_FS_FILE_BOOLEAN("namespaces", 1),
> AA_FS_FILE_U64("capability", VFS_CAP_FLAGS_MASK),
> { }
> diff --git a/security/apparmor/include/apparmorfs.h b/security/apparmor/include/apparmorfs.h
> index 16e6545..7ea4769 100644
> --- a/security/apparmor/include/apparmorfs.h
> +++ b/security/apparmor/include/apparmorfs.h
> @@ -17,6 +17,7 @@
>
> enum aa_fs_type {
> AA_FS_TYPE_BOOLEAN,
> + AA_FS_TYPE_STRING,
> AA_FS_TYPE_U64,
> AA_FS_TYPE_FOPS,
> AA_FS_TYPE_DIR,
> @@ -31,6 +32,7 @@ struct aa_fs_entry {
> enum aa_fs_type v_type;
> union {
> bool boolean;
> + char *string;
> unsigned long u64;
> struct aa_fs_entry *files;
> } v;
> @@ -43,6 +45,10 @@ extern const struct file_operations aa_fs_seq_file_ops;
> { .name = (_name), .mode = 0444, \
> .v_type = AA_FS_TYPE_BOOLEAN, .v.boolean = (_value), \
> .file_ops = &aa_fs_seq_file_ops }
> +#define AA_FS_FILE_STRING(_name, _value) \
> + { .name = (_name), .mode = 0444, \
> + .v_type = AA_FS_TYPE_STRING, .v.string = (_value), \
> + .file_ops = &aa_fs_seq_file_ops }
> #define AA_FS_FILE_U64(_name, _value) \
> { .name = (_name), .mode = 0444, \
> .v_type = AA_FS_TYPE_U64, .v.u64 = (_value), \



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