From: Mateusz Guzik <mjguzik@gmail.com>
To: viro@zeniv.linux.org.uk
Cc: serge@hallyn.com, torvalds@linux-foundation.org,
paul@paul-moore.com, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-security-module@vger.kernel.org,
Mateusz Guzik <mjguzik@gmail.com>
Subject: [PATCH v3 1/2] capability: add cap_isidentical
Date: Wed, 25 Jan 2023 16:55:56 +0100 [thread overview]
Message-ID: <20230125155557.37816-1-mjguzik@gmail.com> (raw)
Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
Reviewed-by: Serge Hallyn <serge@hallyn.com>
---
include/linux/capability.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/include/linux/capability.h b/include/linux/capability.h
index 65efb74c3585..736a973c677a 100644
--- a/include/linux/capability.h
+++ b/include/linux/capability.h
@@ -156,6 +156,16 @@ static inline bool cap_isclear(const kernel_cap_t a)
return true;
}
+static inline bool cap_isidentical(const kernel_cap_t a, const kernel_cap_t b)
+{
+ unsigned __capi;
+ CAP_FOR_EACH_U32(__capi) {
+ if (a.cap[__capi] != b.cap[__capi])
+ return false;
+ }
+ return true;
+}
+
/*
* Check if "a" is a subset of "set".
* return true if ALL of the capabilities in "a" are also in "set"
--
2.39.0
next reply other threads:[~2023-01-25 15:56 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-25 15:55 Mateusz Guzik [this message]
2023-01-25 15:55 ` [PATCH v3 2/2] vfs: avoid duplicating creds in faccessat if possible Mateusz Guzik
2023-02-28 0:44 ` Linus Torvalds
2023-03-02 8:30 ` Christian Brauner
2023-03-02 17:51 ` Linus Torvalds
2023-03-02 18:14 ` Mateusz Guzik
2023-03-02 18:18 ` Al Viro
2023-03-02 18:22 ` Mateusz Guzik
2023-03-02 18:43 ` Al Viro
2023-03-02 18:51 ` Mateusz Guzik
2023-03-02 19:02 ` Al Viro
2023-03-02 19:18 ` Al Viro
2023-03-02 19:03 ` Linus Torvalds
2023-03-02 19:10 ` Linus Torvalds
2023-03-02 19:19 ` Al Viro
2023-03-02 19:54 ` Kees Cook
2023-03-02 20:11 ` Al Viro
2023-03-03 15:30 ` Alexander Potapenko
2023-03-03 17:39 ` Mateusz Guzik
2023-03-03 17:54 ` Linus Torvalds
2023-03-03 19:37 ` Mateusz Guzik
2023-03-03 19:38 ` Mateusz Guzik
2023-03-03 20:08 ` Linus Torvalds
2023-03-03 20:39 ` Mateusz Guzik
2023-03-03 20:58 ` Linus Torvalds
2023-03-03 21:09 ` Mateusz Guzik
2023-03-04 19:01 ` Mateusz Guzik
2023-03-04 20:31 ` Mateusz Guzik
2023-03-04 20:48 ` Linus Torvalds
2023-03-05 17:23 ` David Laight
2023-03-04 1:29 ` Linus Torvalds
2023-03-04 3:25 ` Yury Norov
2023-03-04 3:42 ` Linus Torvalds
2023-03-04 5:51 ` Yury Norov
2023-03-04 16:41 ` David Vernet
2023-03-04 19:02 ` Linus Torvalds
2023-03-04 19:19 ` Linus Torvalds
2023-03-04 20:34 ` Linus Torvalds
2023-03-04 20:51 ` Yury Norov
2023-03-04 21:01 ` Linus Torvalds
2023-03-04 21:03 ` Linus Torvalds
2023-03-04 21:10 ` Linus Torvalds
2023-03-04 23:08 ` Linus Torvalds
2023-03-04 23:52 ` Linus Torvalds
[not found] ` <CA+icZUUH-J3eh=PSEcaHRDtcKB9svA2Qct6RiOq_MFP_+KeBLQ@mail.gmail.com>
2023-03-05 18:17 ` Linus Torvalds
2023-03-05 18:43 ` Linus Torvalds
2023-03-06 5:43 ` Yury Norov
2023-03-04 20:18 ` Al Viro
2023-03-04 20:42 ` Mateusz Guzik
2023-03-02 19:38 ` Kees Cook
2023-03-02 19:48 ` Eric Biggers
2023-03-02 18:41 ` Al Viro
2023-03-03 14:49 ` Christian Brauner
2023-03-02 18:11 ` Al Viro
2023-03-03 14:27 ` Christian Brauner
2023-02-28 1:14 ` [PATCH v3 1/2] capability: add cap_isidentical Linus Torvalds
2023-02-28 2:46 ` Casey Schaufler
2023-02-28 14:47 ` Mateusz Guzik
2023-02-28 19:39 ` Linus Torvalds
2023-02-28 19:51 ` Linus Torvalds
2023-02-28 20:48 ` Linus Torvalds
2023-02-28 21:21 ` Mateusz Guzik
2023-02-28 21:29 ` Linus Torvalds
2023-03-01 18:13 ` Linus Torvalds
2023-02-28 17:32 ` Serge E. Hallyn
2023-02-28 17:52 ` Casey Schaufler
2023-02-28 20:04 Alexey Dobriyan
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