From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:59934 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S967788AbeEXULN (ORCPT ); Thu, 24 May 2018 16:11:13 -0400 Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w4OK4Dpt036005 for ; Thu, 24 May 2018 16:11:13 -0400 Received: from e18.ny.us.ibm.com (e18.ny.us.ibm.com [129.33.205.208]) by mx0a-001b2d01.pphosted.com with ESMTP id 2j61cnff16-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Thu, 24 May 2018 16:11:13 -0400 Received: from localhost by e18.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 24 May 2018 16:11:12 -0400 From: Stefan Berger To: zohar@linux.vnet.ibm.com, sgrubb@redhat.com Cc: linux-integrity@vger.kernel.org, linux-kernel@vger.kernel.org, linux-audit@redhat.com, Stefan Berger Subject: [PATCH 3/8] audit: Implement audit_log_tty() Date: Thu, 24 May 2018 16:11:00 -0400 In-Reply-To: <20180524201105.3179904-1-stefanb@linux.vnet.ibm.com> References: <20180524201105.3179904-1-stefanb@linux.vnet.ibm.com> Message-Id: <20180524201105.3179904-4-stefanb@linux.vnet.ibm.com> Sender: linux-integrity-owner@vger.kernel.org List-ID: Implement audit_log_tty() so that IMA can add tty= to its audit records. Signed-off-by: Stefan Berger --- include/linux/audit.h | 5 +++++ kernel/audit.c | 8 ++++++++ 2 files changed, 13 insertions(+) diff --git a/include/linux/audit.h b/include/linux/audit.h index 90aa63ddc9be..2deb76c74d10 100644 --- a/include/linux/audit.h +++ b/include/linux/audit.h @@ -154,6 +154,7 @@ extern void audit_log_task_info(struct audit_buffer *ab, struct task_struct *tsk); extern int audit_update_lsm_rules(void); +extern void audit_log_tty(struct audit_buffer *ab, struct task_struct *tsk); /* Private API (for audit.c only) */ extern int audit_rule_change(int type, int seq, void *data, size_t datasz); @@ -202,6 +203,10 @@ static inline int audit_log_task_context(struct audit_buffer *ab) static inline void audit_log_task_info(struct audit_buffer *ab, struct task_struct *tsk) { } + +static inline void audit_log_tty(struct audit_buffer *ab, + struct task_struct *tsk) +{ } #define audit_enabled 0 #endif /* CONFIG_AUDIT */ diff --git a/kernel/audit.c b/kernel/audit.c index 670665c6e2a6..fa54695962b4 100644 --- a/kernel/audit.c +++ b/kernel/audit.c @@ -2305,6 +2305,14 @@ void audit_log_task_info(struct audit_buffer *ab, struct task_struct *tsk) } EXPORT_SYMBOL(audit_log_task_info); +void audit_log_tty(struct audit_buffer *ab, struct task_struct *tsk) +{ + struct tty_struct *tty = audit_get_tty(tsk); + + audit_log_format(ab, " tty=%s", tty ? tty_name(tty) : "(none)"); + audit_put_tty(tty); +} + /** * audit_log_link_denied - report a link restriction denial * @operation: specific link operation -- 2.13.6