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kernel: remove unused kernel_compat

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Co-authored-by: weishu <twsxtd@gmail.com>
This commit is contained in:
ShirkNeko
2025-11-08 19:39:41 +08:00
parent 623dd15cbf
commit 76046c84cd
17 changed files with 17 additions and 21 deletions
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69
kernel/seccomp_cache.c Normal file
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@@ -0,0 +1,69 @@
#include <linux/version.h>
#include <linux/fs.h>
#include <linux/nsproxy.h>
#include <linux/sched/task.h>
#include <linux/uaccess.h>
#include <linux/filter.h>
#include <linux/seccomp.h>
#include "klog.h" // IWYU pragma: keep
#include "seccomp_cache.h"
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 10, 2) // Android backport this feature in 5.10.2
struct action_cache {
DECLARE_BITMAP(allow_native, SECCOMP_ARCH_NATIVE_NR);
#ifdef SECCOMP_ARCH_COMPAT
DECLARE_BITMAP(allow_compat, SECCOMP_ARCH_COMPAT_NR);
#endif
};
struct seccomp_filter {
refcount_t refs;
refcount_t users;
bool log;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 1, 0)
bool wait_killable_recv;
#endif
struct action_cache cache;
struct seccomp_filter *prev;
struct bpf_prog *prog;
struct notification *notif;
struct mutex notify_lock;
wait_queue_head_t wqh;
};
void ksu_seccomp_clear_cache(struct seccomp_filter *filter, int nr)
{
if (!filter) {
return;
}
if (nr >= 0 && nr < SECCOMP_ARCH_NATIVE_NR) {
clear_bit(nr, filter->cache.allow_native);
}
#ifdef SECCOMP_ARCH_COMPAT
if (nr >= 0 && nr < SECCOMP_ARCH_COMPAT_NR) {
clear_bit(nr, filter->cache.allow_compat);
}
#endif
}
void ksu_seccomp_allow_cache(struct seccomp_filter *filter, int nr)
{
if (!filter) {
return;
}
if (nr >= 0 && nr < SECCOMP_ARCH_NATIVE_NR) {
set_bit(nr, filter->cache.allow_native);
}
#ifdef SECCOMP_ARCH_COMPAT
if (nr >= 0 && nr < SECCOMP_ARCH_COMPAT_NR) {
set_bit(nr, filter->cache.allow_compat);
}
#endif
}
#endif