From: Francis Laniel <flaniel@linux.microsoft.com>
To: linux-kernel@vger.kernel.org
Cc: Serge Hallyn <serge@hallyn.com>,
linux-security-module@vger.kernel.org,
Francis Laniel <flaniel@linux.microsoft.com>
Subject: [RFC PATCH v1 1/2] capability: Add cap_strings.
Date: Mon, 27 Dec 2021 21:54:59 +0100 [thread overview]
Message-ID: <20211227205500.214777-2-flaniel@linux.microsoft.com> (raw)
In-Reply-To: <20211227205500.214777-1-flaniel@linux.microsoft.com>
This array contains the capability names for the given capabilitiy.
For example, index CAP_BPF contains "CAP_BPF".
Signed-off-by: Francis Laniel <flaniel@linux.microsoft.com>
---
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..9646654d5111 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_strings[];
#endif /* _UAPI_LINUX_CAPABILITY_H */
diff --git a/kernel/capability.c b/kernel/capability.c
index 46a361dde042..5a2e71dcd87b 100644
--- a/kernel/capability.c
+++ b/kernel/capability.c
@@ -15,6 +15,7 @@
#include <linux/mm.h>
#include <linux/export.h>
#include <linux/security.h>
+#include <linux/stringify.h>
#include <linux/syscalls.h>
#include <linux/pid_namespace.h>
#include <linux/user_namespace.h>
@@ -27,6 +28,50 @@
const kernel_cap_t __cap_empty_set = CAP_EMPTY_SET;
EXPORT_SYMBOL(__cap_empty_set);
+const char *cap_strings[] = {
+ [CAP_CHOWN] = __stringify_1(CAP_CHOWN),
+ [CAP_DAC_OVERRIDE] = __stringify_1(CAP_DAC_OVERRIDE),
+ [CAP_DAC_READ_SEARCH] = __stringify_1(CAP_DAC_READ_SEARCH),
+ [CAP_FOWNER] = __stringify_1(CAP_FOWNER),
+ [CAP_FSETID] = __stringify_1(CAP_FSETID),
+ [CAP_KILL] = __stringify_1(CAP_KILL),
+ [CAP_SETGID] = __stringify_1(CAP_SETGID),
+ [CAP_SETUID] = __stringify_1(CAP_SETUID),
+ [CAP_SETPCAP] = __stringify_1(CAP_SETPCAP),
+ [CAP_LINUX_IMMUTABLE] = __stringify_1(CAP_LINUX_IMMUTABLE),
+ [CAP_NET_BIND_SERVICE] = __stringify_1(CAP_NET_BIND_SERVICE),
+ [CAP_NET_BROADCAST] = __stringify_1(CAP_NET_BROADCAST),
+ [CAP_NET_ADMIN] = __stringify_1(CAP_NET_ADMIN),
+ [CAP_NET_RAW] = __stringify_1(CAP_NET_RAW),
+ [CAP_IPC_LOCK] = __stringify_1(CAP_IPC_LOCK),
+ [CAP_IPC_OWNER] = __stringify_1(CAP_IPC_OWNER),
+ [CAP_SYS_MODULE] = __stringify_1(CAP_SYS_MODULE),
+ [CAP_SYS_RAWIO] = __stringify_1(CAP_SYS_RAWIO),
+ [CAP_SYS_CHROOT] = __stringify_1(CAP_SYS_CHROOT),
+ [CAP_SYS_PTRACE] = __stringify_1(CAP_SYS_PTRACE),
+ [CAP_SYS_PACCT] = __stringify_1(CAP_SYS_PACCT),
+ [CAP_SYS_ADMIN] = __stringify_1(CAP_SYS_ADMIN),
+ [CAP_SYS_BOOT] = __stringify_1(CAP_SYS_BOOT),
+ [CAP_SYS_NICE] = __stringify_1(CAP_SYS_NICE),
+ [CAP_SYS_RESOURCE] = __stringify_1(CAP_SYS_RESOURCE),
+ [CAP_SYS_TIME] = __stringify_1(CAP_SYS_TIME),
+ [CAP_SYS_TTY_CONFIG] = __stringify_1(CAP_SYS_TTY_CONFIG),
+ [CAP_MKNOD] = __stringify_1(CAP_MKNOD),
+ [CAP_LEASE] = __stringify_1(CAP_LEASE),
+ [CAP_AUDIT_WRITE] = __stringify_1(CAP_AUDIT_WRITE),
+ [CAP_AUDIT_CONTROL] = __stringify_1(CAP_AUDIT_CONTROL),
+ [CAP_SETFCAP] = __stringify_1(CAP_SETFCAP),
+ [CAP_MAC_OVERRIDE] = __stringify_1(CAP_MAC_OVERRIDE),
+ [CAP_MAC_ADMIN] = __stringify_1(CAP_MAC_ADMIN),
+ [CAP_SYSLOG] = __stringify_1(CAP_SYSLOG),
+ [CAP_WAKE_ALARM] = __stringify_1(CAP_WAKE_ALARM),
+ [CAP_BLOCK_SUSPEND] = __stringify_1(CAP_BLOCK_SUSPEND),
+ [CAP_AUDIT_READ] = __stringify_1(CAP_AUDIT_READ),
+ [CAP_PERFMON] = __stringify_1(CAP_PERFMON),
+ [CAP_BPF] = __stringify_1(CAP_BPF),
+ [CAP_CHECKPOINT_RESTORE] = __stringify_1(CAP_CHECKPOINT_RESTORE),
+};
+
int file_caps_enabled = 1;
static int __init file_caps_disable(char *str)
--
2.30.2
next prev parent reply other threads:[~2021-12-27 20:55 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-27 20:54 [RFC PATCH v1 0/2] Add capabilities file to sysfs Francis Laniel
2021-12-27 20:54 ` Francis Laniel [this message]
2021-12-27 22:26 ` [RFC PATCH v1 1/2] capability: Add cap_strings Casey Schaufler
2021-12-28 13:27 ` Francis Laniel
2022-01-14 0:39 ` Serge E. Hallyn
2022-01-17 14:14 ` Francis Laniel
2021-12-27 20:55 ` [RFC PATCH v1 2/2] kernel/ksysfs.c: Add capabilities attribute Francis Laniel
2021-12-27 22:22 ` [RFC PATCH v1 0/2] Add capabilities file to sysfs Casey Schaufler
2021-12-28 13:34 ` Francis Laniel
2021-12-29 1:26 ` Casey Schaufler
2021-12-29 20:56 ` Francis Laniel
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20211227205500.214777-2-flaniel@linux.microsoft.com \
--to=flaniel@linux.microsoft.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-security-module@vger.kernel.org \
--cc=serge@hallyn.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.