From: "Günther Noack" <gnoack3000@gmail.com>
To: "Mickaël Salaün" <mic@digikod.net>
Cc: "Christian Brauner" <brauner@kernel.org>,
"Günther Noack" <gnoack@google.com>,
"Paul Moore" <paul@paul-moore.com>,
"Serge E . Hallyn" <serge@hallyn.com>,
"Daniel Durning" <danieldurning.work@gmail.com>,
"Jonathan Corbet" <corbet@lwn.net>,
"Justin Suess" <utilityemal77@gmail.com>,
"Lennart Poettering" <lennart@poettering.net>,
"Mikhail Ivanov" <ivanov.mikhail1@huawei-partners.com>,
"Nicolas Bouchinet" <nicolas.bouchinet@oss.cyber.gouv.fr>,
"Shervin Oloumi" <enlightened@google.com>,
"Tingmao Wang" <m@maowtm.org>,
kernel-team@cloudflare.com, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-security-module@vger.kernel.org
Subject: Re: [PATCH v6 1/8] landlock: Rename quiet_masks to quiet_access
Date: Sat, 17 Oct 2026 12:20:45 +0200 [thread overview]
Message-ID: <20261017.19431362edfa@gnoack.org> (raw)
In-Reply-To: <20261014082718.1435842-2-mic@digikod.net>
On Wed, Oct 14, 2026 at 10:27:07AM +0200, Mickaël Salaün wrote:
> The base stores the fs/net/scope quiet bitmasks in a struct access_masks
> field named quiet_masks. A following commit adds the sibling struct
> permission_masks field quiet_permission for capabilities and namespaces.
> quiet_masks drops the access category and keeps the type half ("masks"),
> while quiet_permission keeps the category and drops the type half, so
> the two read as an inconsistent pair.
>
> Rename the base field to quiet_access, giving the symmetric,
> category-named pair quiet_access/quiet_permission that also matches the
> UAPI handled_access_*/quiet_access_* naming. This is a
> no-functional-change rename.
>
> Cc: Günther Noack <gnoack@google.com>
> Cc: Tingmao Wang <m@maowtm.org>
> Reviewed-by: Tingmao Wang <m@maowtm.org>
> Signed-off-by: Mickaël Salaün <mic@digikod.net>
> ---
>
> Changes since v3:
> https://patch.msgid.link/20260726161400.3010511-5-mic@digikod.net
> - Adapt the rename to the split ruleset/domain and logging code.
> - Add Reviewed-by: Tingmao Wang.
>
> Changes since v2:
> - New patch.
> ---
> security/landlock/domain.c | 2 +-
> security/landlock/domain.h | 4 ++--
> security/landlock/log.c | 6 +++---
> security/landlock/ruleset.h | 4 ++--
> security/landlock/syscalls.c | 10 +++++-----
> 5 files changed, 13 insertions(+), 13 deletions(-)
>
> diff --git a/security/landlock/domain.c b/security/landlock/domain.c
> index 4031b581be07..c66663f8cd8b 100644
> --- a/security/landlock/domain.c
> +++ b/security/landlock/domain.c
> @@ -479,7 +479,7 @@ landlock_merge_ruleset(struct landlock_domain *const parent,
> return ERR_PTR(err);
>
> #ifdef CONFIG_SECURITY_LANDLOCK_LOG
> - new_dom->hierarchy->quiet_masks = ruleset->quiet_masks;
> + new_dom->hierarchy->quiet_access = ruleset->quiet_access;
> #endif /* CONFIG_SECURITY_LANDLOCK_LOG */
>
> return no_free_ptr(new_dom);
> diff --git a/security/landlock/domain.h b/security/landlock/domain.h
> index 428c1d9890db..61d89261e280 100644
> --- a/security/landlock/domain.h
> +++ b/security/landlock/domain.h
> @@ -130,10 +130,10 @@ struct landlock_hierarchy {
> */
> log_new_exec : 1;
> /**
> - * @quiet_masks: Bitmasks of access that should be quieted (i.e. not
> + * @quiet_access: Bitmasks of access that should be quieted (i.e. not
> * logged) if the related object is marked as quiet.
> */
> - struct access_masks quiet_masks;
> + struct access_masks quiet_access;
> #endif /* CONFIG_SECURITY_LANDLOCK_LOG */
> };
>
> diff --git a/security/landlock/log.c b/security/landlock/log.c
> index a8578a6f2ce9..3f9ae1bacb23 100644
> --- a/security/landlock/log.c
> +++ b/security/landlock/log.c
> @@ -436,7 +436,7 @@ is_denial_quieted(const struct landlock_request *const request,
> if (object_quiet_flag) {
> const access_mask_t quiet_mask =
> pick_access_mask_for_request_type(
> - request->type, youngest_denied->quiet_masks);
> + request->type, youngest_denied->quiet_access);
>
> return (quiet_mask & missing) == missing;
> }
> @@ -447,10 +447,10 @@ is_denial_quieted(const struct landlock_request *const request,
> */
> switch (request->type) {
> case LANDLOCK_REQUEST_SCOPE_SIGNAL:
> - return !!(youngest_denied->quiet_masks.scope &
> + return !!(youngest_denied->quiet_access.scope &
> LANDLOCK_SCOPE_SIGNAL);
> case LANDLOCK_REQUEST_SCOPE_ABSTRACT_UNIX_SOCKET:
> - return !!(youngest_denied->quiet_masks.scope &
> + return !!(youngest_denied->quiet_access.scope &
> LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET);
> /*
> * Leave LANDLOCK_REQUEST_PTRACE and LANDLOCK_REQUEST_FS_CHANGE_TOPOLOGY
> diff --git a/security/landlock/ruleset.h b/security/landlock/ruleset.h
> index cf77f1806a95..8ebdd4fa098f 100644
> --- a/security/landlock/ruleset.h
> +++ b/security/landlock/ruleset.h
> @@ -182,11 +182,11 @@ struct landlock_ruleset {
> #endif /* CONFIG_TRACEPOINTS */
>
> /**
> - * @quiet_masks: Stores the quiet flags for an unmerged ruleset. For a
> + * @quiet_access: Stores the quiet flags for an unmerged ruleset. For a
> * merged domain, this is stored in each layer's struct
> * landlock_hierarchy instead.
> */
> - struct access_masks quiet_masks;
> + struct access_masks quiet_access;
> /**
> * @handled_masks: Contains the subset of filesystem and network actions
> * that are handled by this ruleset.
> diff --git a/security/landlock/syscalls.c b/security/landlock/syscalls.c
> index 1d02d57f4c48..17d8e9b7b0c6 100644
> --- a/security/landlock/syscalls.c
> +++ b/security/landlock/syscalls.c
> @@ -280,9 +280,9 @@ SYSCALL_DEFINE3(landlock_create_ruleset,
> if (IS_ERR(ruleset))
> return PTR_ERR(ruleset);
>
> - ruleset->quiet_masks.fs = ruleset_attr.quiet_access_fs;
> - ruleset->quiet_masks.net = ruleset_attr.quiet_access_net;
> - ruleset->quiet_masks.scope = ruleset_attr.quiet_scoped;
> + ruleset->quiet_access.fs = ruleset_attr.quiet_access_fs;
> + ruleset->quiet_access.net = ruleset_attr.quiet_access_net;
> + ruleset->quiet_access.scope = ruleset_attr.quiet_scoped;
>
> /*
> * Emits before anon_inode_getfd() installs the file descriptor, while
> @@ -382,7 +382,7 @@ static int add_rule_path_beneath(struct landlock_ruleset *const ruleset,
> return -EINVAL;
>
> /* Checks for useless quiet flag. */
> - if (flags & LANDLOCK_ADD_RULE_QUIET && !ruleset->quiet_masks.fs)
> + if (flags & LANDLOCK_ADD_RULE_QUIET && !ruleset->quiet_access.fs)
> return -EINVAL;
>
> /* Gets and checks the new rule. */
> @@ -423,7 +423,7 @@ static int add_rule_net_port(struct landlock_ruleset *ruleset,
> return -EINVAL;
>
> /* Checks for useless quiet flag. */
> - if (flags & LANDLOCK_ADD_RULE_QUIET && !ruleset->quiet_masks.net)
> + if (flags & LANDLOCK_ADD_RULE_QUIET && !ruleset->quiet_access.net)
> return -EINVAL;
>
> /* Denies inserting a rule with port greater than 65535. */
> --
> 2.55.0
>
Reviewed-by: Günther Noack <gnoack3000@gmail.com>
next prev parent reply other threads:[~2026-10-17 10:20 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-14 8:27 [PATCH v6 0/8] Landlock: Namespace and capability control Mickaël Salaün
2026-10-14 8:27 ` [PATCH v6 1/8] landlock: Rename quiet_masks to quiet_access Mickaël Salaün
2026-10-14 8:33 ` sashiko-bot
2026-10-17 10:20 ` Günther Noack [this message]
2026-10-14 8:27 ` [PATCH v6 2/8] landlock: Wrap per-layer access masks in struct layer_config Mickaël Salaün
2026-10-14 8:32 ` sashiko-bot
2026-10-14 8:27 ` [PATCH v6 3/8] landlock: Enforce namespace use restrictions Mickaël Salaün
2026-10-14 8:39 ` sashiko-bot
2026-10-14 8:27 ` [PATCH v6 4/8] landlock: Enforce capability restrictions Mickaël Salaün
2026-10-14 8:36 ` sashiko-bot
2026-10-14 8:27 ` [PATCH v6 5/8] selftests/landlock: Add namespace restriction tests Mickaël Salaün
2026-10-14 8:41 ` sashiko-bot
2026-10-17 8:11 ` Günther Noack
2026-10-14 8:27 ` [PATCH v6 6/8] selftests/landlock: Add capability " Mickaël Salaün
2026-10-14 8:43 ` sashiko-bot
2026-10-17 10:20 ` Günther Noack
2026-10-14 8:27 ` [PATCH v6 7/8] samples/landlock: Add capability and namespace restriction support Mickaël Salaün
2026-10-14 8:45 ` sashiko-bot
2026-10-14 8:27 ` [PATCH v6 8/8] landlock: Add documentation for capability and namespace restrictions Mickaël Salaün
2026-10-14 8:43 ` sashiko-bot
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