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authorMickaël Salaün2024-11-09 12:08:55 +0100
committerMickaël Salaün2024-11-09 19:52:13 +0100
commit8376226e5f53e78cd16a2b23577304e43acb3ba4 (patch)
treec8635291802ec75e699fa0884d2e603a28e24476
parent0c0effb07f7d662af3e6f74da4d34241e412029b (diff)
landlock: Refactor network access mask management
Replace get_raw_handled_net_accesses() and get_current_net_domain() with a call to landlock_get_applicable_domain(). Cc: Konstantin Meskhidze <konstantin.meskhidze@huawei.com> Cc: Mikhail Ivanov <ivanov.mikhail1@huawei-partners.com> Reviewed-by: Günther Noack <gnoack@google.com> Link: https://lore.kernel.org/r/20241109110856.222842-3-mic@digikod.net Signed-off-by: Mickaël Salaün <mic@digikod.net>
-rw-r--r--security/landlock/net.c28
1 files changed, 6 insertions, 22 deletions
diff --git a/security/landlock/net.c b/security/landlock/net.c
index c8bcd29bde09..d5dcc4407a19 100644
--- a/security/landlock/net.c
+++ b/security/landlock/net.c
@@ -39,27 +39,9 @@ int landlock_append_net_rule(struct landlock_ruleset *const ruleset,
return err;
}
-static access_mask_t
-get_raw_handled_net_accesses(const struct landlock_ruleset *const domain)
-{
- access_mask_t access_dom = 0;
- size_t layer_level;
-
- for (layer_level = 0; layer_level < domain->num_layers; layer_level++)
- access_dom |= landlock_get_net_access_mask(domain, layer_level);
- return access_dom;
-}
-
-static const struct landlock_ruleset *get_current_net_domain(void)
-{
- const struct landlock_ruleset *const dom =
- landlock_get_current_domain();
-
- if (!dom || !get_raw_handled_net_accesses(dom))
- return NULL;
-
- return dom;
-}
+static const struct access_masks any_net = {
+ .net = ~0,
+};
static int current_check_access_socket(struct socket *const sock,
struct sockaddr *const address,
@@ -72,7 +54,9 @@ static int current_check_access_socket(struct socket *const sock,
struct landlock_id id = {
.type = LANDLOCK_KEY_NET_PORT,
};
- const struct landlock_ruleset *const dom = get_current_net_domain();
+ const struct landlock_ruleset *const dom =
+ landlock_get_applicable_domain(landlock_get_current_domain(),
+ any_net);
if (!dom)
return 0;