c0066b68f5
Basic support for the case that init_task.mnt_ns != zygote.mnt_ns(WSA), just copy nsproxy and fs pointers for solve #276. Note the copy in `apk_sign.c` is not required but suggested for secure(ensure the checked mnt_ns is what ns android running, not created by user, although many distributions does not have user ns.). Tested with latest release on Win10 19045.3086(with WSAPatch). Further review required for: - [x] Security of this operation (without locking). - [x] The impact of these modifications on other Android distributions.
27 lines
888 B
C
27 lines
888 B
C
#ifndef __KSU_H_KERNEL_COMPAT
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#define __KSU_H_KERNEL_COMPAT
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#include "linux/fs.h"
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#include "linux/key.h"
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#include "linux/version.h"
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#include "linux/uaccess.h"
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 8, 0)
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#define ksu_strncpy_from_user_nofault strncpy_from_user_nofault
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#elif LINUX_VERSION_CODE >= KERNEL_VERSION(5, 3, 0)
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#define ksu_strncpy_from_user_nofault strncpy_from_unsafe_user
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#else
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#define ksu_strncpy_from_user_nofault strncpy_from_user
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0)
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extern struct key *init_session_keyring;
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#endif
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extern void ksu_android_ns_fs_check();
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extern struct file *ksu_filp_open_compat(const char *filename, int flags, umode_t mode);
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extern ssize_t ksu_kernel_read_compat(struct file *p, void *buf, size_t count, loff_t *pos);
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extern ssize_t ksu_kernel_write_compat(struct file *p, const void *buf, size_t count, loff_t *pos);
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#endif
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