android/SukiSU-Ultra
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

kernel: fix filp_open on older kernel's kworker (#205)

Browse Source 
On older kernel, kworker missing keyring from init process , and this
keyring is related to FBE , which causes filp_open return ENOKEY or
other errors.To fix this,just install init's keyring to per
kworkers.This works on Kernel 4.4 and 4.9.
This commit is contained in:
f19
2023-02-05 07:14:59 +08:00
committed by GitHub
parent cd33a6dd07
commit 0c322a33bc
5 changed files with 67 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
kernel/allowlist.c
View File

@@ -22,12 +22,7 @@ struct perm_data {
static struct list_head allow_list;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 5, 0)
#define KERNEL_SU_ALLOWLIST "/data/adb/ksu/.allowlist"
#else
// filp_open return error if under encryption dir on Kernel4.4
#define KERNEL_SU_ALLOWLIST "/data/user_de/.ksu_allowlist"
#endif
static struct work_struct ksu_save_work;
static struct work_struct ksu_load_work;
@@ -124,7 +119,7 @@ void do_persistent_allow_list(struct work_struct *work)
struct perm_data *p = NULL;
struct list_head *pos = NULL;
loff_t off = 0;
KWORKER_INSTALL_KEYRING();
struct file *fp =
filp_open(KERNEL_SU_ALLOWLIST, O_WRONLY | O_CREAT, 0644);
@@ -164,7 +159,7 @@ void do_load_allow_list(struct work_struct *work)
struct file *fp = NULL;
u32 magic;
u32 version;
KWORKER_INSTALL_KEYRING();
fp = filp_open("/data/adb", O_RDONLY, 0);
if (IS_ERR(fp)) {
int errno = PTR_ERR(fp);