55 lines
1.8 KiB
C
55 lines
1.8 KiB
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/version.h>
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#include "ss/policydb.h"
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#include "linux/key.h"
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/*
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* Adapt to Huawei HISI kernel without affecting other kernels ,
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* Huawei Hisi Kernel EBITMAP Enable or Disable Flag ,
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* From ss/ebitmap.h
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*/
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 0)) && \
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(LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0)) || \
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(LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0)) && \
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(LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0))
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#ifdef HISI_SELINUX_EBITMAP_RO
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#define CONFIG_IS_HW_HISI
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#endif
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#endif
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extern long ksu_strncpy_from_user_nofault(char *dst,
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const void __user *unsafe_addr,
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long count);
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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,
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umode_t mode);
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extern ssize_t ksu_kernel_read_compat(struct file *p, void *buf, size_t count,
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loff_t *pos);
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extern ssize_t ksu_kernel_write_compat(struct file *p, const void *buf,
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size_t count, loff_t *pos);
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/*
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* ksu_copy_from_user_retry
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* try nofault copy first, if it fails, try with plain
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* paramters are the same as copy_from_user
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* 0 = success
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*/
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static long ksu_copy_from_user_retry(void *to,
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const void __user *from, unsigned long count)
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{
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long ret = copy_from_user_nofault(to, from, count);
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if (likely(!ret))
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return ret;
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// we faulted! fallback to slow path
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return copy_from_user(to, from, count);
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}
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extern void ksu_seccomp_clear_cache(struct seccomp_filter *filter, int nr);
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extern void ksu_seccomp_allow_cache(struct seccomp_filter *filter, int nr);
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#endif
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