handlers.c File Reference

#include "handlers.h"
#include "defs.h"
#include "common.h"
#include "hvmi.h"

Go to the source code of this file.

Data Structures
struct	inactive_task_frame

Macros
#define	current_task
#define	current_cpu

Functions
	def_detour_vars (commit_creds)
	def_detour_vars (arch_jump_label_transform)
	def_detour_vars (module_param_sysfs_setup)
	def_detour_vars (module_param_sysfs_remove)
	def_detour_vars (wake_up_new_task)
	def_detour_vars (flush_old_exec)
	def_detour_vars (begin_new_exec)
	def_detour_vars (do_exit)
	def_detour_vars (arch_ptrace)
	def_detour_vars (compat_arch_ptrace)
	def_detour_vars (process_vm_rw_core)
	def_detour_vars (__vma_link_rb)
	def_detour_vars (change_protection)
	def_detour_vars (vma_adjust)
	def_detour_vars (__vma_adjust)
	def_detour_vars (vma_rb_erase)
	def_detour_vars (__vma_rb_erase)
	def_detour_vars (expand_downwards)
	def_detour_vars (complete_signal)
	def_detour_vars (text_poke)
	def_detour_vars (__text_poke)
	def_detour_vars (ftrace_write)
	def_detour_vars (panic)
	def_detour_vars (crash_kexec)
	def_detour_vars (__access_remote_vm)
	def_detour_hijack_vars (mprotect_fixup, vma_wants_writenotify)
	def_detour_hijack_vars (do_munmap, rb_erase)
	def_detour_hijack_vars (vma_adjust, rb_erase)
static __default_fn_attr bool	is_detour_enabled (DETOUR_ID id)
static __default_fn_attr size_t	vmcall (DETOUR_ID id)
__default_fn_attr char *	d_path (void *path_struct)
__default_fn_attr void *	_memcpy (void *dest, const void *src, size_t len)
__default_fn_attr void	store_regs (void)
__default_fn_attr void	commit_creds (long *creds)
__default_fn_attr void	module_param_sysfs_setup (void *module)
__default_fn_attr void	module_param_sysfs_remove (void *module)
__default_fn_attr void	wake_up_new_task (long task)
__default_fn_attr int	flush_old_exec (long binprm)
__default_fn_attr int	begin_new_exec (long binprm)
__default_fn_attr void	do_exit (long code)
__default_fn_attr long	arch_ptrace (long child, long request)
__default_fn_attr size_t	process_vm_rw_core (int pid, void *iter, void *rvec, unsigned long riovcnt, unsigned long flags, int vm_write)
__default_fn_attr void	__vma_link_rb (void *mm, void *vma, void **rb_link, void *rb_parent)
__default_fn_attr void	change_protection (long vma, unsigned long start, unsigned long end, unsigned long newprot, int dirty_accountable, int prot_numa)
__default_fn_attr void	pre_vma_adjust (long vma, unsigned long start, unsigned long end, unsigned long pgoff, void *insert, void *expand, long *skip_call, long *saved_vma, long *next, long *prev)
__default_fn_attr void	vma_adjust (long _vma, unsigned long _start, unsigned long _end, unsigned long _pgoff, void *_insert, void *_expand, long *_skip_call, long saved_vma, long next, long prev)
__default_fn_attr void	vma_rb_erase (long vma, void *root)
__default_fn_attr void	expand_downwards (long vma, unsigned long address)
__default_fn_attr int	complete_signal (int sig, void *task, enum pid_type type)
__default_fn_attr void	text_poke (void *addr, const void *opcode, size_t len)
__default_fn_attr void	ftrace_write (unsigned long ip, const char *val, int size)
__default_fn_attr void	panic (const char *fmt)
__default_fn_attr void	arch_jump_label_transform (void *entry, enum jump_label_type type)
__default_fn_attr void	__access_remote_vm (void *task, void *mm, unsigned long addr, void *buf, int len, unsigned int gup_flags)
__default_fn_attr void	do_munmap_rb_erase (unsigned long vma_vm_rb, unsigned long mm_mm_rb)
__default_fn_attr void	vma_adjust_rb_erase (unsigned long vma_vm_rb, unsigned long mm_mm_rb)
__default_fn_attr void	mprotect_fixup_vma_wants_writenotify (unsigned long vma)
void	__asm_defines (void)

Variables
LIX_HYPERCALL_PAGE	hypercall_info

Macro Definition Documentation

current_cpu

#define current_cpu

Value:

({                                                                                                              \
    uint32_t ret;                                                                                               \
    asm volatile("mov %[ret], gs:[%[value]]"                                                                    \
                 : [ret] "=r" (ret)                                                                             \
                 : [value] "rm" ((unsigned long long)hypercall_info.OsSpecificFields.CurrentCpuOffset) : );     \
    ret;                                                                                                        \
})

Definition at line 102 of file handlers.c.

Referenced by d_path(), and store_regs().

current_task

#define current_task

Value:

({                                                                                                              \
    void *ret;                                                                                                  \
    asm volatile("mov %[ret], gs:[%[value]]"                                                                    \
                 : [ret] "=r" (ret)                                                                             \
                 : [value] "rm" ((unsigned long long)hypercall_info.OsSpecificFields.CurrentTaskOffset) : );    \
    (void *)ret;                                                                                                \
})

Definition at line 92 of file handlers.c.

Referenced by begin_new_exec(), commit_creds(), do_exit(), flush_old_exec(), process_vm_rw_core(), and wake_up_new_task().

Function Documentation

__access_remote_vm()

__default_fn_attr void __access_remote_vm	(	void *	task,
		void *	mm,
		unsigned long	addr,
		void *	buf,
		int	len,
		unsigned int	gup_flags
	)

Definition at line 474 of file handlers.c.

Referenced by __asm_defines().

__asm_defines()

void __asm_defines

(

void

)

Definition at line 545 of file handlers.c.

__vma_link_rb()

__default_fn_attr void __vma_link_rb	(	void *	mm,
		void *	vma,
		void **	rb_link,
		void *	rb_parent
	)

Definition at line 308 of file handlers.c.

Referenced by __asm_defines().

_memcpy()

__default_fn_attr void* _memcpy	(	void *	dest,
		const void *	src,
		size_t	len
	)

Definition at line 149 of file handlers.c.

Referenced by store_regs().

arch_jump_label_transform()

__default_fn_attr void arch_jump_label_transform	(	void *	entry,
		enum jump_label_type	type
	)

Definition at line 466 of file handlers.c.

Referenced by __asm_defines().

arch_ptrace()

__default_fn_attr long arch_ptrace	(	long	child,
		long	request
	)

Definition at line 278 of file handlers.c.

Referenced by __asm_defines().

begin_new_exec()

__default_fn_attr int begin_new_exec

(

long

binprm

)

Definition at line 252 of file handlers.c.

Referenced by __asm_defines().

change_protection()

__default_fn_attr void change_protection	(	long	vma,
		unsigned long	start,
		unsigned long	end,
		unsigned long	newprot,
		int	dirty_accountable,
		int	prot_numa
	)

Definition at line 332 of file handlers.c.

Referenced by __asm_defines().

commit_creds()

__default_fn_attr void commit_creds

(

long *

creds

)

Definition at line 192 of file handlers.c.

Referenced by __asm_defines().

complete_signal()

__default_fn_attr int complete_signal	(	int	sig,
		void *	task,
		enum pid_type	type
	)

Definition at line 422 of file handlers.c.

Referenced by __asm_defines().

d_path()

__default_fn_attr char* d_path

(

void *

path_struct

)

Definition at line 140 of file handlers.c.

Referenced by begin_new_exec(), and flush_old_exec().

def_detour_hijack_vars() [1/3]

def_detour_hijack_vars	(	mprotect_fixup	,
		vma_wants_writenotify
	)

def_detour_hijack_vars() [2/3]

def_detour_hijack_vars	(	do_munmap	,
		rb_erase
	)

def_detour_hijack_vars() [3/3]

def_detour_hijack_vars	(	vma_adjust	,
		rb_erase
	)

def_detour_vars() [1/25]

def_detour_vars

(

commit_creds

)

def_detour_vars() [2/25]

def_detour_vars

(

arch_jump_label_transform

)

def_detour_vars() [3/25]

def_detour_vars

(

module_param_sysfs_setup

)

def_detour_vars() [4/25]

def_detour_vars

(

module_param_sysfs_remove

)

def_detour_vars() [5/25]

def_detour_vars

(

wake_up_new_task

)

def_detour_vars() [6/25]

def_detour_vars

(

flush_old_exec

)

def_detour_vars() [7/25]

def_detour_vars

(

begin_new_exec

)

def_detour_vars() [8/25]

def_detour_vars

(

do_exit

)

def_detour_vars() [9/25]

def_detour_vars

(

arch_ptrace

)

def_detour_vars() [10/25]

def_detour_vars

(

compat_arch_ptrace

)

def_detour_vars() [11/25]

def_detour_vars

(

process_vm_rw_core

)

def_detour_vars() [12/25]

def_detour_vars

(

__vma_link_rb

)

def_detour_vars() [13/25]

def_detour_vars

(

change_protection

)

def_detour_vars() [14/25]

def_detour_vars

(

vma_adjust

)

def_detour_vars() [15/25]

def_detour_vars

(

__vma_adjust

)

def_detour_vars() [16/25]

def_detour_vars

(

vma_rb_erase

)

def_detour_vars() [17/25]

def_detour_vars

(

__vma_rb_erase

)

def_detour_vars() [18/25]

def_detour_vars

(

expand_downwards

)

def_detour_vars() [19/25]

def_detour_vars

(

complete_signal

)

def_detour_vars() [20/25]

def_detour_vars

(

text_poke

)

def_detour_vars() [21/25]

def_detour_vars

(

__text_poke

)

def_detour_vars() [22/25]

def_detour_vars

(

ftrace_write

)

def_detour_vars() [23/25]

def_detour_vars

(

panic

)

def_detour_vars() [24/25]

def_detour_vars

(

crash_kexec

)

def_detour_vars() [25/25]

def_detour_vars

(

__access_remote_vm

)

do_exit()

__default_fn_attr void do_exit

(

long

code

)

Definition at line 270 of file handlers.c.

Referenced by __asm_defines().

do_munmap_rb_erase()

__default_fn_attr void do_munmap_rb_erase	(	unsigned long	vma_vm_rb,
		unsigned long	mm_mm_rb
	)

Definition at line 487 of file handlers.c.

expand_downwards()

__default_fn_attr void expand_downwards	(	long	vma,
		unsigned long	address
	)

Definition at line 409 of file handlers.c.

Referenced by __asm_defines().

flush_old_exec()

__default_fn_attr int flush_old_exec

(

long

binprm

)

Definition at line 234 of file handlers.c.

Referenced by __asm_defines().

ftrace_write()

__default_fn_attr void ftrace_write	(	unsigned long	ip,
		const char *	val,
		int	size
	)

Definition at line 450 of file handlers.c.

Referenced by __asm_defines().

is_detour_enabled()

static __default_fn_attr bool is_detour_enabled ( DETOUR_ID  id )

static

Definition at line 113 of file handlers.c.

Referenced by vmcall().

module_param_sysfs_remove()

__default_fn_attr void module_param_sysfs_remove

(

void *

module

)

Definition at line 218 of file handlers.c.

Referenced by __asm_defines().

module_param_sysfs_setup()

__default_fn_attr void module_param_sysfs_setup

(

void *

module

)

Definition at line 210 of file handlers.c.

Referenced by __asm_defines().

mprotect_fixup_vma_wants_writenotify()

__default_fn_attr void mprotect_fixup_vma_wants_writenotify

(

unsigned long

vma

)

Definition at line 519 of file handlers.c.

panic()

__default_fn_attr void panic

(

const char *

fmt

)

Definition at line 458 of file handlers.c.

Referenced by __asm_defines().

pre_vma_adjust()

__default_fn_attr void pre_vma_adjust	(	long	vma,
		unsigned long	start,
		unsigned long	end,
		unsigned long	pgoff,
		void *	insert,
		void *	expand,
		long *	skip_call,
		long *	saved_vma,
		long *	next,
		long *	prev
	)

Definition at line 360 of file handlers.c.

process_vm_rw_core()

__default_fn_attr size_t process_vm_rw_core	(	int	pid,
		void *	iter,
		void *	rvec,
		unsigned long	riovcnt,
		unsigned long	flags,
		int	vm_write
	)

Definition at line 295 of file handlers.c.

Referenced by __asm_defines().

store_regs()

__default_fn_attr void store_regs

(

void

)

Definition at line 164 of file handlers.c.

text_poke()

__default_fn_attr void text_poke	(	void *	addr,
		const void *	opcode,
		size_t	len
	)

Definition at line 441 of file handlers.c.

Referenced by __asm_defines().

vma_adjust()

__default_fn_attr void vma_adjust	(	long	_vma,
		unsigned long	_start,
		unsigned long	_end,
		unsigned long	_pgoff,
		void *	_insert,
		void *	_expand,
		long *	_skip_call,
		long	saved_vma,
		long	next,
		long	prev
	)

Definition at line 381 of file handlers.c.

Referenced by __asm_defines().

vma_adjust_rb_erase()

__default_fn_attr void vma_adjust_rb_erase	(	unsigned long	vma_vm_rb,
		unsigned long	mm_mm_rb
	)

Definition at line 503 of file handlers.c.

vma_rb_erase()

__default_fn_attr void vma_rb_erase	(	long	vma,
		void *	root
	)

Definition at line 395 of file handlers.c.

Referenced by __asm_defines().

vmcall()

static __default_fn_attr size_t vmcall ( DETOUR_ID  id )

static

Definition at line 121 of file handlers.c.

Referenced by IntDetEnableHypercall(), and panic().

wake_up_new_task()

__default_fn_attr void wake_up_new_task

(

long

task

)

Definition at line 226 of file handlers.c.

Referenced by __asm_defines().

Variable Documentation

hypercall_info

LIX_HYPERCALL_PAGE hypercall_info

Definition at line 53 of file handlers.c.

Referenced by __vma_link_rb(), begin_new_exec(), change_protection(), commit_creds(), d_path(), do_munmap_rb_erase(), expand_downwards(), flush_old_exec(), is_detour_enabled(), mprotect_fixup_vma_wants_writenotify(), pre_vma_adjust(), store_regs(), vma_adjust(), vma_adjust_rb_erase(), and vma_rb_erase().