# fadvise64 _______________________________________________________ # # COMPAT_SYSCALL_DEFINE5(x86_fadvise64, int, fd, unsigned int, # offset_lo, unsigned int, offset_hi, # size_t, len, int, advice) # asmlinkage long sys32_fadvise64(int fd, unsigned offset_lo, # unsigned offset_hi, # size_t len, int advice) # @define _SYSCALL_COMPAT_FADVISE64_NAME %( name = "fadvise64" %) @define _SYSCALL_COMPAT_FADVISE64_ARGSTR %( argstr = sprintf("%d, %d, %d, %s", fd, offset, len, advice_str) %) @define _SYSCALL_COMPAT_FADVISE64_REGARGS %( fd = int_arg(1) offset = ((uint_arg(3) << 32) | uint_arg(2)) len = int_arg(4) advice = int_arg(5) advice_str = _fadvice_advice_str(advice) %) @define _SYSCALL_COMPAT_FADVISE64_64_REGARGS %( fd = int_arg(1) offset = ((uint_arg(3) << 32) | uint_arg(2)) len = ((uint_arg(5) << 32) | uint_arg(4)) advice = int_arg(6) advice_str = _fadvice_advice_str(advice) %) probe syscall.compat_fadvise64 = dw_syscall.compat_fadvise64 !, nd_syscall.compat_fadvise64 ? {} probe syscall.compat_fadvise64.return = dw_syscall.compat_fadvise64.return !, nd_syscall.compat_fadvise64.return ? {} # dw_compat_fadvise64 _____________________________________________________ probe dw_syscall.compat_fadvise64 = kernel.function("sys32_fadvise64").call ?, kernel.function("compat_sys_x86_fadvise64").call ? { @_SYSCALL_COMPAT_FADVISE64_NAME fd = __int32($fd) offset = (($offset_hi << 32) | $offset_lo) len = __int32($len) advice = __int32($advice) advice_str = _fadvice_advice_str(advice) @_SYSCALL_COMPAT_FADVISE64_ARGSTR } probe dw_syscall.compat_fadvise64.return = kernel.function("sys32_fadvise64").return ?, kernel.function("compat_sys_x86_fadvise64").return ? { @_SYSCALL_COMPAT_FADVISE64_NAME @SYSC_RETVALSTR($return) } # nd_compat_fadvise64 _____________________________________________________ probe nd_syscall.compat_fadvise64 = nd1_syscall.compat_fadvise64!, nd2_syscall.compat_fadvise64!, tp_syscall.compat_fadvise64 { } probe nd1_syscall.compat_fadvise64 = kprobe.function("sys32_fadvise64") ?, kprobe.function("compat_sys_x86_fadvise64") ? { asmlinkage() @_SYSCALL_COMPAT_FADVISE64_NAME @_SYSCALL_COMPAT_FADVISE64_REGARGS @_SYSCALL_COMPAT_FADVISE64_ARGSTR } /* kernel 4.17+ */ probe nd2_syscall.compat_fadvise64 = kprobe.function(@arch_syscall_prefix "compat_sys_x86_fadvise64") ? { __set_syscall_pt_regs(pointer_arg(1)) @_SYSCALL_COMPAT_FADVISE64_NAME @_SYSCALL_COMPAT_FADVISE64_REGARGS @_SYSCALL_COMPAT_FADVISE64_ARGSTR } /* kernel 3.5+, but undesirable because it affects all syscalls */ probe tp_syscall.compat_fadvise64 = kernel.trace("sys_enter") { __set_syscall_pt_regs($regs) @__compat_syscall_gate(@const("__NR_ia32_fadvise64")) @_SYSCALL_COMPAT_FADVISE64_NAME @_SYSCALL_COMPAT_FADVISE64_REGARGS @_SYSCALL_COMPAT_FADVISE64_ARGSTR } probe nd_syscall.compat_fadvise64.return = nd1_syscall.compat_fadvise64.return!, nd2_syscall.compat_fadvise64.return!, tp_syscall.compat_fadvise64.return { } probe nd1_syscall.compat_fadvise64.return = kprobe.function("sys32_fadvise64").return ?, kprobe.function("compat_sys_x86_fadvise64").return ? { @_SYSCALL_COMPAT_FADVISE64_NAME @SYSC_RETVALSTR(returnval()) } /* kernel 4.17+ */ probe nd2_syscall.compat_fadvise64.return = kprobe.function(@arch_syscall_prefix "compat_sys_x86_fadvise64").return ? { @_SYSCALL_COMPAT_FADVISE64_NAME @SYSC_RETVALSTR(returnval()) } /* kernel 3.5+, but undesirable because it affects all syscalls */ probe tp_syscall.compat_fadvise64.return = kernel.trace("sys_exit") { __set_syscall_pt_regs($regs) @__compat_syscall_gate(@const("__NR_ia32_fadvise64")) @_SYSCALL_COMPAT_FADVISE64_NAME @SYSC_RETVALSTR($ret) } # fadvise64_64 __________________________________________________ # # COMPAT_SYSCALL_DEFINE6(x86_fadvise64_64, int, fd, __u32, offset_low, # __u32, offset_high, __u32, len_low, __u32, # len_high, int, advice) # long sys32_fadvise64_64(int fd, __u32 offset_low, __u32 offset_high, # __u32 len_low, __u32 len_high, int advice) probe syscall.compat_fadvise64_64 = dw_syscall.compat_fadvise64_64 !, nd_syscall.compat_fadvise64_64 ? {} probe syscall.compat_fadvise64_64.return = dw_syscall.compat_fadvise64_64.return !, nd_syscall.compat_fadvise64_64.return ? {} # dw_compat_fadvise64_64 _____________________________________________________ probe dw_syscall.compat_fadvise64_64 = kernel.function("sys32_fadvise64_64").call ?, kernel.function("compat_sys_x86_fadvise64_64").call ? { @_SYSCALL_COMPAT_FADVISE64_NAME fd = __int32($fd) offset = (($offset_high << 32) | $offset_low) len = (($len_high << 32) | $len_low) advice = __int32($advice) advice_str = _fadvice_advice_str(advice) @_SYSCALL_COMPAT_FADVISE64_ARGSTR } probe dw_syscall.compat_fadvise64_64.return = kernel.function("sys32_fadvise64_64").return ?, kernel.function("compat_sys_x86_fadvise64_64").return ? { @_SYSCALL_COMPAT_FADVISE64_NAME @SYSC_RETVALSTR($return) } # nd_compat_fadvise64_64 _____________________________________________________ probe nd_syscall.compat_fadvise64_64 = nd1_syscall.compat_fadvise64_64!, nd2_syscall.compat_fadvise64_64!, tp_syscall.compat_fadvise64_64 { } probe nd1_syscall.compat_fadvise64_64 = kprobe.function("sys32_fadvise64_64") ?, kprobe.function("compat_sys_x86_fadvise64_64") ? { @_SYSCALL_COMPAT_FADVISE64_NAME @_SYSCALL_COMPAT_FADVISE64_64_REGARGS @_SYSCALL_COMPAT_FADVISE64_ARGSTR } /* kernel 4.17+ */ probe nd2_syscall.compat_fadvise64_64 = kprobe.function(@arch_syscall_prefix "compat_sys_x86_fadvise64_64") ? { __set_syscall_pt_regs(pointer_arg(1)) @_SYSCALL_COMPAT_FADVISE64_NAME @_SYSCALL_COMPAT_FADVISE64_64_REGARGS @_SYSCALL_COMPAT_FADVISE64_ARGSTR } /* kernel 3.5+, but undesirable because it affects all syscalls */ probe tp_syscall.compat_fadvise64_64 = kernel.trace("sys_enter") { __set_syscall_pt_regs($regs) @__compat_syscall_gate(@const("__NR_ia32_fadvise64_64")) @_SYSCALL_COMPAT_FADVISE64_NAME @_SYSCALL_COMPAT_FADVISE64_64_REGARGS @_SYSCALL_COMPAT_FADVISE64_ARGSTR } probe nd_syscall.compat_fadvise64_64.return = nd1_syscall.compat_fadvise64_64.return!, nd2_syscall.compat_fadvise64_64.return!, tp_syscall.compat_fadvise64_64.return { } probe nd1_syscall.compat_fadvise64_64.return = kprobe.function("sys32_fadvise64_64").return ?, kprobe.function("compat_sys_x86_fadvise64_64").return ? { @_SYSCALL_COMPAT_FADVISE64_NAME @SYSC_RETVALSTR(returnval()) } /* kernel 4.17+ */ probe nd2_syscall.compat_fadvise64_64.return = kprobe.function(@arch_syscall_prefix "compat_sys_x86_fadvise64_64").return ? { @_SYSCALL_COMPAT_FADVISE64_NAME @SYSC_RETVALSTR(returnval()) } /* kernel 3.5+, but undesirable because it affects all syscalls */ probe tp_syscall.compat_fadvise64_64.return = kernel.trace("sys_exit") { __set_syscall_pt_regs($regs) @__compat_syscall_gate(@const("__NR_ia32_fadvise64_64")) @_SYSCALL_COMPAT_FADVISE64_NAME @SYSC_RETVALSTR($ret) }