On Fri, Jun 12, 2015 at 9:01 AM, Jeff Vander Stoep <jeffv@xxxxxxxxxx> wrote:
> Add information about ioctl calls to the LSM audit data. Log the
> file path and command number.
>
> Signed-off-by: Jeff Vander Stoep <jeffv@xxxxxxxxxx>
Acked-by: Nick Kralevich <nnk@xxxxxxxxxx>
> ---
> include/linux/lsm_audit.h | 7 +++++++
> security/lsm_audit.c | 15 +++++++++++++++
> 2 files changed, 22 insertions(+)
>
> diff --git a/include/linux/lsm_audit.h b/include/linux/lsm_audit.h
> index 1cc89e9..ffb9c9d 100644
> --- a/include/linux/lsm_audit.h
> +++ b/include/linux/lsm_audit.h
> @@ -40,6 +40,11 @@ struct lsm_network_audit {
> } fam;
> };
>
> +struct lsm_ioctlop_audit {
> + struct path path;
> + u16 cmd;
> +};
> +
> /* Auxiliary data to use in generating the audit record. */
> struct common_audit_data {
> char type;
> @@ -53,6 +58,7 @@ struct common_audit_data {
> #define LSM_AUDIT_DATA_KMOD 8
> #define LSM_AUDIT_DATA_INODE 9
> #define LSM_AUDIT_DATA_DENTRY 10
> +#define LSM_AUDIT_DATA_IOCTL_OP 11
> union {
> struct path path;
> struct dentry *dentry;
> @@ -68,6 +74,7 @@ struct common_audit_data {
> } key_struct;
> #endif
> char *kmod_name;
> + struct lsm_ioctlop_audit *op;
> } u;
> /* this union contains LSM specific data */
> union {
> diff --git a/security/lsm_audit.c b/security/lsm_audit.c
> index 1d34277..9f6c649 100644
> --- a/security/lsm_audit.c
> +++ b/security/lsm_audit.c
> @@ -245,6 +245,21 @@ static void dump_common_audit_data(struct audit_buffer *ab,
> }
> break;
> }
> + case LSM_AUDIT_DATA_IOCTL_OP: {
> + struct inode *inode;
> +
> + audit_log_d_path(ab, " path=", &a->u.op->path);
> +
> + inode = a->u.op->path.dentry->d_inode;
> + if (inode) {
> + audit_log_format(ab, " dev=");
> + audit_log_untrustedstring(ab, inode->i_sb->s_id);
> + audit_log_format(ab, " ino=%lu", inode->i_ino);
> + }
> +
> + audit_log_format(ab, " ioctlcmd=%hx", a->u.op->cmd);
> + break;
> + }
> case LSM_AUDIT_DATA_DENTRY: {
> struct inode *inode;
>
> --
> 2.2.0.rc0.207.ga3a616c
>
> _______________________________________________
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> To get help, send an email containing "help" to Selinux-request@xxxxxxxxxxxxx.
--
Nick Kralevich | Android Security | nnk@xxxxxxxxxx | 650.214.4037
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