From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-2539098-1521191440-2-7942008431067467331 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no ("Email failed DMARC policy for domain") X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.25, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES unknown, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='CN', FromHeader='com', MailFrom='org' X-Spam-charsets: X-IgnoreVacation: yes ("Email failed DMARC policy for domain") X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: linux-api-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1521191439; b=g9nn37rHXxAi5lir6O53dGHi1iWy0iN4UJY7urm1d2rqVAm ALzCXgyLpsOkD+fRKJuMmWfXX/s4Jho3LeXOtrOq8KEBTFl8GEnmw/ht2ggNRAL/ UvfdNzPRavH7NGYCUxr6YgytjDL5cumCMOoxepC1LyO09qJvd67zu5h3ncrp8zRJ NMTQvqh5mv08B7oIDit+Bqicluwn+mOY1U359gJRLCfrfdv0bvPhaun+yWWTEhfA J+4G7xGXPMzGaEs4JMdld8mWlrAZntkR8Vnsc9U37qeEKxmpCSmAZz7ADWg7gFwC zkEMp2+g42qaGlr9wedLkJ3yUT5b9RBkajfDqEA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:cc:subject:date:message-id :in-reply-to:references:in-reply-to:references:sender:list-id; s=arctest; t=1521191439; bh=yruhlk6AP3Bp7SyBjSBV17F0RUIWqP0t8dk DR23PFdI=; b=rMiPbKoazCDKeG6Ac1h6DF0Yaj8/DxXcAn3P/LKqAu4CVCsKKdh VX5ZjUe73aC4pI6p2fCH3VZAGAwq7mo8gcRfSsNOc7IIxotPlR7fJTRUKOBEASUx rMy7vHWbsboYE0FlivUNFSIZuCycfw/iAq8Xii+Odp3BWmimEyS91Ot6JqnYXkpx beQ6/1D8i1PUzhrFyoAVAMdhQPNQqbcWmolv7ggqTlT46IR9CzQfSbg8sG1UD605 4bFL5XaQRoDMtYd5DQDcDinOi5v4VpuWg4hIi5exaxDEo98NqZZBZOFdRThjBcyr qQIx/j+x4Fd8x0KGbB/qpNN4edpcVdERMUg== ARC-Authentication-Results: i=1; mx1.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=fail (p=none,has-list-id=yes,d=none) header.from=redhat.com; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=linux-api-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-category=clean score=-75 state=0; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=redhat.com header.result=pass header_is_org_domain=yes Authentication-Results: mx1.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=fail (p=none,has-list-id=yes,d=none) header.from=redhat.com; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=linux-api-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-category=clean score=-75 state=0; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=redhat.com header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753277AbeCPJG2 (ORCPT ); Fri, 16 Mar 2018 05:06:28 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:52408 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751094AbeCPJG0 (ORCPT ); Fri, 16 Mar 2018 05:06:26 -0400 From: Richard Guy Briggs To: cgroups@vger.kernel.org, containers@lists.linux-foundation.org, linux-api@vger.kernel.org, Linux-Audit Mailing List , linux-fsdevel@vger.kernel.org, LKML , netdev@vger.kernel.org Cc: luto@kernel.org, jlayton@redhat.com, carlos@redhat.com, viro@zeniv.linux.org.uk, dhowells@redhat.com, simo@redhat.com, eparis@parisplace.org, serge@hallyn.com, ebiederm@xmission.com, madzcar@gmail.com, Richard Guy Briggs Subject: [RFC PATCH ghak32 V2 03/13] audit: log container info of syscalls Date: Fri, 16 Mar 2018 05:00:30 -0400 Message-Id: <6768d20c636df65534f8d325529669bb30a58382.1521179281.git.rgb@redhat.com> In-Reply-To: References: In-Reply-To: References: Sender: linux-api-owner@vger.kernel.org X-Mailing-List: linux-api@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: Create a new audit record AUDIT_CONTAINER_INFO to document the container ID of a process if it is present. Called from audit_log_exit(), syscalls are covered. A sample raw event: type=SYSCALL msg=audit(1519924845.499:257): arch=c000003e syscall=257 success=yes exit=3 a0=ffffff9c a1=56374e1cef30 a2=241 a3=1b6 items=2 ppid=606 pid=635 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts0 ses=3 comm="bash" exe="/usr/bin/bash" subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key="tmpcontainerid" type=CWD msg=audit(1519924845.499:257): cwd="/root" type=PATH msg=audit(1519924845.499:257): item=0 name="/tmp/" inode=13863 dev=00:27 mode=041777 ouid=0 ogid=0 rdev=00:00 obj=system_u:object_r:tmp_t:s0 nametype= PARENT cap_fp=0000000000000000 cap_fi=0000000000000000 cap_fe=0 cap_fver=0 type=PATH msg=audit(1519924845.499:257): item=1 name="/tmp/tmpcontainerid" inode=17729 dev=00:27 mode=0100644 ouid=0 ogid=0 rdev=00:00 obj=unconfined_u:object_r:user_tmp_t:s0 nametype=CREATE cap_fp=0000000000000000 cap_fi=0000000000000000 cap_fe=0 cap_fver=0 type=PROCTITLE msg=audit(1519924845.499:257): proctitle=62617368002D6300736C65657020313B206563686F2074657374203E202F746D702F746D70636F6E7461696E65726964 type=CONTAINER_INFO msg=audit(1519924845.499:257): op=task contid=123458 See: https://github.com/linux-audit/audit-kernel/issues/32 Signed-off-by: Richard Guy Briggs --- include/linux/audit.h | 5 +++++ include/uapi/linux/audit.h | 1 + kernel/audit.c | 20 ++++++++++++++++++++ kernel/auditsc.c | 2 ++ 4 files changed, 28 insertions(+) diff --git a/include/linux/audit.h b/include/linux/audit.h index fe4ba3f..3acbe9d 100644 --- a/include/linux/audit.h +++ b/include/linux/audit.h @@ -154,6 +154,8 @@ extern void audit_log_link_denied(const char *operation, extern int audit_log_task_context(struct audit_buffer *ab); extern void audit_log_task_info(struct audit_buffer *ab, struct task_struct *tsk); +extern int audit_log_container_info(struct task_struct *tsk, + struct audit_context *context); extern int audit_update_lsm_rules(void); @@ -205,6 +207,9 @@ 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 int audit_log_container_info(struct task_struct *tsk, + struct audit_context *context); +{ } #define audit_enabled 0 #endif /* CONFIG_AUDIT */ diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h index 921a71f..e83ccbd 100644 --- a/include/uapi/linux/audit.h +++ b/include/uapi/linux/audit.h @@ -115,6 +115,7 @@ #define AUDIT_REPLACE 1329 /* Replace auditd if this packet unanswerd */ #define AUDIT_KERN_MODULE 1330 /* Kernel Module events */ #define AUDIT_FANOTIFY 1331 /* Fanotify access decision */ +#define AUDIT_CONTAINER_INFO 1332 /* Container ID information */ #define AUDIT_AVC 1400 /* SE Linux avc denial or grant */ #define AUDIT_SELINUX_ERR 1401 /* Internal SE Linux Errors */ diff --git a/kernel/audit.c b/kernel/audit.c index 3f2f143..a12f21f 100644 --- a/kernel/audit.c +++ b/kernel/audit.c @@ -2049,6 +2049,26 @@ void audit_log_session_info(struct audit_buffer *ab) audit_log_format(ab, " auid=%u ses=%u", auid, sessionid); } +/* + * audit_log_container_info - report container info + * @tsk: task to be recorded + * @context: task or local context for record + */ +int audit_log_container_info(struct task_struct *tsk, struct audit_context *context) +{ + struct audit_buffer *ab; + + if (!audit_containerid_set(tsk)) + return 0; + /* Generate AUDIT_CONTAINER_INFO with container ID */ + ab = audit_log_start(context, GFP_KERNEL, AUDIT_CONTAINER_INFO); + if (!ab) + return -ENOMEM; + audit_log_format(ab, "contid=%llu", audit_get_containerid(tsk)); + audit_log_end(ab); + return 0; +} + void audit_log_key(struct audit_buffer *ab, char *key) { audit_log_format(ab, " key="); diff --git a/kernel/auditsc.c b/kernel/auditsc.c index a6b0a52..65be110 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c @@ -1453,6 +1453,8 @@ static void audit_log_exit(struct audit_context *context, struct task_struct *ts audit_log_proctitle(tsk, context); + audit_log_container_info(tsk, context); + /* Send end of event record to help user space know we are finished */ ab = audit_log_start(context, GFP_KERNEL, AUDIT_EOE); if (ab) -- 1.8.3.1