From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 69111C433EF for ; Mon, 25 Jul 2022 12:42:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235189AbiGYMmT (ORCPT ); Mon, 25 Jul 2022 08:42:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47686 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235152AbiGYMmP (ORCPT ); Mon, 25 Jul 2022 08:42:15 -0400 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 71763EA5; Mon, 25 Jul 2022 05:42:14 -0700 (PDT) Received: from pwmachine.numericable.fr (82.65.121.78.rev.sfr.net [78.121.65.82]) by linux.microsoft.com (Postfix) with ESMTPSA id 73FE620FE2EF; Mon, 25 Jul 2022 05:42:12 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 73FE620FE2EF DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1658752934; bh=eP40915vgoBrG96hKTUVxcYImLSDsKFEvVRuWZFLCaA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MqCi3j+3MBTonE5wv1O9LN+FyrEtNU2oDfrNWw+iNlYuGfrM9AS1KRx89MSePuHmK jC7upqTT2u7ITKmj1wJpgJBKxrAT3NdjbBna+E2YZlrdaJraJhK3uBor7Weoho4hZa yQU9a5IloIUNytZu7K/3A9BpXzoUMvPnrE0lC8Xs= From: Francis Laniel To: linux-security-module@vger.kernel.org Cc: Casey Schaufler , Eric Biederman , Francis Laniel , Serge Hallyn , James Morris , linux-kernel@vger.kernel.org (open list) Subject: [RFC PATCH v4 1/2] capability: Add cap_string. Date: Mon, 25 Jul 2022 14:41:22 +0200 Message-Id: <20220725124123.12975-2-flaniel@linux.microsoft.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220725124123.12975-1-flaniel@linux.microsoft.com> References: <20220725124123.12975-1-flaniel@linux.microsoft.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: This string contains on each line the number of the capability associated to its name. For example, first line is: __stringify(CAP_CHOWN) "\tCAP_CHOWN\n" which the preprocessor will replace by: "0\tCAP_CHOWN\n" Acked-by: Casey Schaufler Signed-off-by: Francis Laniel --- include/uapi/linux/capability.h | 1 + kernel/capability.c | 45 +++++++++++++++++++++++++++++++++ 2 files changed, 46 insertions(+) diff --git a/include/uapi/linux/capability.h b/include/uapi/linux/capability.h index 463d1ba2232a..115f4fef00da 100644 --- a/include/uapi/linux/capability.h +++ b/include/uapi/linux/capability.h @@ -428,5 +428,6 @@ struct vfs_ns_cap_data { #define CAP_TO_INDEX(x) ((x) >> 5) /* 1 << 5 == bits in __u32 */ #define CAP_TO_MASK(x) (1 << ((x) & 31)) /* mask for indexed __u32 */ +extern const char *cap_string; #endif /* _UAPI_LINUX_CAPABILITY_H */ diff --git a/kernel/capability.c b/kernel/capability.c index 765194f5d678..4cd0ce07458b 100644 --- a/kernel/capability.c +++ b/kernel/capability.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -27,6 +28,50 @@ const kernel_cap_t __cap_empty_set = CAP_EMPTY_SET; EXPORT_SYMBOL(__cap_empty_set); +const char *cap_string = + __stringify(CAP_CHOWN) "\tCAP_CHOWN\n" + __stringify(CAP_DAC_OVERRIDE) "\tCAP_DAC_OVERRIDE\n" + __stringify(CAP_DAC_READ_SEARCH) "\tCAP_DAC_READ_SEARCH\n" + __stringify(CAP_FOWNER) "\tCAP_FOWNER\n" + __stringify(CAP_FSETID) "\tCAP_FSETID\n" + __stringify(CAP_KILL) "\tCAP_KILL\n" + __stringify(CAP_SETGID) "\tCAP_SETGID\n" + __stringify(CAP_SETUID) "\tCAP_SETUID\n" + __stringify(CAP_SETPCAP) "\tCAP_SETPCAP\n" + __stringify(CAP_LINUX_IMMUTABLE) "\tCAP_LINUX_IMMUTABLE\n" + __stringify(CAP_NET_BIND_SERVICE) "\tCAP_NET_BIND_SERVICE\n" + __stringify(CAP_NET_BROADCAST) "\tCAP_NET_BROADCAST\n" + __stringify(CAP_NET_ADMIN) "\tCAP_NET_ADMIN\n" + __stringify(CAP_NET_RAW) "\tCAP_NET_RAW\n" + __stringify(CAP_IPC_LOCK) "\tCAP_IPC_LOCK\n" + __stringify(CAP_IPC_OWNER) "\tCAP_IPC_OWNER\n" + __stringify(CAP_SYS_MODULE) "\tCAP_SYS_MODULE\n" + __stringify(CAP_SYS_RAWIO) "\tCAP_SYS_RAWIO\n" + __stringify(CAP_SYS_CHROOT) "\tCAP_SYS_CHROOT\n" + __stringify(CAP_SYS_PTRACE) "\tCAP_SYS_PTRACE\n" + __stringify(CAP_SYS_PACCT) "\tCAP_SYS_PACCT\n" + __stringify(CAP_SYS_ADMIN) "\tCAP_SYS_ADMIN\n" + __stringify(CAP_SYS_BOOT) "\tCAP_SYS_BOOT\n" + __stringify(CAP_SYS_NICE) "\tCAP_SYS_NICE\n" + __stringify(CAP_SYS_RESOURCE) "\tCAP_SYS_RESOURCE\n" + __stringify(CAP_SYS_TIME) "\tCAP_SYS_TIME\n" + __stringify(CAP_SYS_TTY_CONFIG) "\tCAP_SYS_TTY_CONFIG\n" + __stringify(CAP_MKNOD) "\tCAP_MKNOD\n" + __stringify(CAP_LEASE) "\tCAP_LEASE\n" + __stringify(CAP_AUDIT_WRITE) "\tCAP_AUDIT_WRITE\n" + __stringify(CAP_AUDIT_CONTROL) "\tCAP_AUDIT_CONTROL\n" + __stringify(CAP_SETFCAP) "\tCAP_SETFCAP\n" + __stringify(CAP_MAC_OVERRIDE) "\tCAP_MAC_OVERRIDE\n" + __stringify(CAP_MAC_ADMIN) "\tCAP_MAC_ADMIN\n" + __stringify(CAP_SYSLOG) "\tCAP_SYSLOG\n" + __stringify(CAP_WAKE_ALARM) "\tCAP_WAKE_ALARM\n" + __stringify(CAP_BLOCK_SUSPEND) "\tCAP_BLOCK_SUSPEND\n" + __stringify(CAP_AUDIT_READ) "\tCAP_AUDIT_READ\n" + __stringify(CAP_PERFMON) "\tCAP_PERFMON\n" + __stringify(CAP_BPF) "\tCAP_BPF\n" + __stringify(CAP_CHECKPOINT_RESTORE) "\tCAP_CHECKPOINT_RESTORE\n" +; + int file_caps_enabled = 1; static int __init file_caps_disable(char *str) -- 2.25.1