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kernel: tidy-up code

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Signed-off-by: Faris <rissu.ntk@gmail.com>
This commit is contained in:
Faris
2025-11-02 00:43:48 +07:00
committed by ShirkNeko
parent b3fab49730
commit 7f2c838145
3 changed files with 77 additions and 96 deletions
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117
kernel/pkg_observer.c
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@@ -24,129 +24,66 @@ struct watch_dir {
static struct fsnotify_group *g;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 9, 0)
static int ksu_handle_inode_event(struct fsnotify_mark *mark, u32 mask,
struct inode *inode, struct inode *dir,
const struct qstr *file_name, u32 cookie)
#include "pkg_observer_defs.h" // KSU_DECL_FSNOTIFY_OPS
static KSU_DECL_FSNOTIFY_OPS(ksu_handle_generic_event)
{
if (!file_name)
if (!file_name || (mask & FS_ISDIR))
return 0;
if (mask & FS_ISDIR)
return 0;
if (file_name->len == 13 &&
!memcmp(file_name->name, "packages.list", 13)) {
pr_info("packages.list detected: %d\n", mask);
if (ksu_uid_scanner_enabled) {
if (ksu_fname_len(file_name) == 13 &&
!memcmp(ksu_fname_arg(file_name), "packages.list", 13)) {
pr_info("packages.list detected: %d\n", mask);
if (ksu_uid_scanner_enabled) {
ksu_request_userspace_scan();
}
track_throne();
}
return 0;
}
#else
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 2, 0)
static int ksu_handle_event(struct fsnotify_group *group,
struct inode *inode, u32 mask, const void *data, int data_type,
const struct qstr *file_name, u32 cookie,
struct fsnotify_iter_info *iter_info)
#elif LINUX_VERSION_CODE >= KERNEL_VERSION(4, 18, 0)
static int ksu_handle_event(struct fsnotify_group *group,
struct inode *inode, u32 mask, const void *data, int data_type,
const unsigned char *file_name, u32 cookie,
struct fsnotify_iter_info *iter_info)
#elif LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0)
static int ksu_handle_event(struct fsnotify_group *group,
struct inode *inode, struct fsnotify_mark *inode_mark,
struct fsnotify_mark *vfsmount_mark,
u32 mask, const void *data, int data_type,
const unsigned char *file_name, u32 cookie,
struct fsnotify_iter_info *iter_info)
#else
static int ksu_handle_event(struct fsnotify_group *group,
struct inode *inode,
struct fsnotify_mark *inode_mark,
struct fsnotify_mark *vfsmount_mark,
u32 mask, void *data, int data_type,
const unsigned char *file_name, u32 cookie)
#endif
{
if (!file_name)
return 0;
if (mask & FS_ISDIR)
return 0;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 2, 0)
if (file_name->len == 13 &&
!memcmp(file_name->name, "packages.list", 13)) {
#else
if (strlen(file_name) == 13 &&
!memcmp(file_name, "packages.list", 13)) {
#endif
pr_info("packages.list detected: %d\n", mask);
track_throne();
}
return 0;
}
#endif
static const struct fsnotify_ops ksu_ops = {
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 9, 0)
.handle_inode_event = ksu_handle_inode_event,
.handle_inode_event = ksu_handle_generic_event,
#else
.handle_event = ksu_handle_event,
.handle_event = ksu_handle_generic_event,
#endif
};
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0)
static void __maybe_unused m_free(struct fsnotify_mark *m)
{
if (m) {
kfree(m);
}
}
static int add_mark_on_inode(struct inode *inode, u32 mask,
struct fsnotify_mark **out)
{
struct fsnotify_mark *m;
int ret;
m = kzalloc(sizeof(*m), GFP_KERNEL);
if (!m)
return -ENOMEM;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0)
fsnotify_init_mark(m, g);
m->mask = mask;
ret = fsnotify_add_inode_mark(m, inode, 0);
#else
fsnotify_init_mark(m, m_free);
m->mask = mask;
ret = fsnotify_add_mark(m, g, inode, NULL, 0);
#endif
if (fsnotify_add_inode_mark(m, inode, 0)) {
if (ret < 0) {
fsnotify_put_mark(m);
return -EINVAL;
return ret;
}
*out = m;
return 0;
}
#else
static void ksu_free_mark(struct fsnotify_mark *ksu_mark)
{
if (ksu_mark)
kfree(ksu_mark);
}
static int add_mark_on_inode(struct inode *inode, u32 mask,
struct fsnotify_mark **out)
{
struct fsnotify_mark *ksu_mark;
int ret;
ksu_mark = kzalloc(sizeof(*ksu_mark), GFP_KERNEL);
if (!ksu_mark)
return -ENOMEM;
fsnotify_init_mark(ksu_mark, ksu_free_mark);
ksu_mark->mask = mask;
ret = fsnotify_add_mark(ksu_mark, g, inode, NULL, 0);
if (ret < 0) {
fsnotify_put_mark(ksu_mark);
return ret;
}
*out = ksu_mark;
return 0;
}
#endif /* LINUX_VERSION_CODE >= 4.12 */
static int watch_one_dir(struct watch_dir *wd)
{