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kernel: backport to 4.19 (#36)

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weishu
2023-01-10 23:20:32 +08:00
committed by GitHub
parent 26f80b7107
commit 0e0a812a9c
4 changed files with 42 additions and 6 deletions
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17
kernel/selinux/rules.c
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@@ -1,12 +1,20 @@
#include <linux/version.h>
#include "sepolicy.h"
#include "selinux.h"
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 10, 0)
#define SELINUX_POLICY_INSTEAD_SELINUX_SS
#endif
#ifndef SELINUX_POLICY_INSTEAD_SELINUX_SS
#include <ss/services.h>
#endif
#define KERNEL_SU_DOMAIN "su"
#define ALL NULL
void apply_kernelsu_rules()
{
struct selinux_policy *policy;
struct policydb *db;
if (!getenforce()) {
@@ -15,8 +23,13 @@ void apply_kernelsu_rules()
}
rcu_read_lock();
policy = rcu_dereference(selinux_state.policy);
#ifdef SELINUX_POLICY_INSTEAD_SELINUX_SS
struct selinux_policy *policy = rcu_dereference(selinux_state.policy);
db = &policy->policydb;
#else
struct selinux_ss *ss = rcu_dereference(selinux_state.ss);
db = &ss->policydb;
#endif
permissive(db, KERNEL_SU_DOMAIN);
typeattribute(db, KERNEL_SU_DOMAIN, "mlstrustedsubject");