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// Socket tapset
// Copyright (C) 2006 IBM Corp.
// Copyright (C) 2010-2017 Red Hat Inc.
//
// This file is part of systemtap, and is free software. You can
// redistribute it and/or modify it under the terms of the GNU General
// Public License (GPL); either version 2, or (at your option) any
// later version.
// <tapsetdescription>
// This family of probe points is used to probe socket activities.
// </tapsetdescription>
%{
#include <net/sock.h>
#include <asm/bitops.h>
%}
###################
# INTERNAL MACROS #
###################
// Note that since these macros are defined in this file, they are
// local to this file. They are internal only.
//
// Note the '&@sock[0]' usage below. This allows calling the macros
// with either a dwarf variable (like '$sock') or casts (like
// '@cast(_sock, "socket", "kernel") without needing additional casts
// inside the macros (which would then lose type information when
// called with a dwarf variable).
// Return whether the operation was successful.
@define _sock_success_check(ret)
%(
( @ret >= 0 ? 1 : 0 )
%)
// Return the socket protocol number.
@define _sock_prot_num(sock)
%(
( &@sock[0] ? ( @sock->sk ? @sock->sk->sk_protocol : -1 ) : -1 )
%)
// Return the socket family number.
@define _sock_fam_num(sock)
%(
( &@sock[0] ? ( @sock->ops ? @sock->ops->family : -1 ) : -1 )
%)
// Return the socket state number.
@define _sock_state_num(sock)
%(
( &@sock[0] ? @sock->state : -1 )
%)
// Return the socket type number.
@define _sock_type_num(sock)
%(
( &@sock[0] ? @sock->type : -1 )
%)
// Return the socket flags number.
@define _sock_flags_num(sock)
%(
( &@sock[0] ? @sock->flags : -1 )
%)
// A macro that acts just like the kernel's iov_iter_count() (which is
// an inlined function in include/linux/uio.h).
@define iov_iter_count(i) %(
( @i->count )
%)
// A macro that acts just like the kernel's msg_data_left() (which is
// an inlined function in include/linux/socket.h).
@define msg_data_left(msg) %(
( @iov_iter_count(@msg->msg_iter) )
%)
#################
# PROBE ALIASES #
#################
### GENERAL SEND/RECEIVE PROBES ###
/**
* probe socket.send - Message sent on a socket.
* @name: Name of this probe
* @size: Size of message sent (in bytes) or error code if success = 0
* @protocol: Protocol value
* @family: Protocol family value
* @state: Socket state value
* @flags: Socket flags value
* @type: Socket type value
* @success: Was send successful? (1 = yes, 0 = no)
*
* Context:
* The message sender
*/
probe socket.send = socket.sendmsg.return,
socket.writev.return ?,
socket.aio_write.return ?,
socket.write_iter.return ?
{
name = "socket.send"
}
/**
* probe socket.receive - Message received on a socket.
* @name: Name of this probe
* @size: Size of message received (in bytes) or error code if success = 0
* @protocol: Protocol value
* @family: Protocol family value
* @state: Socket state value
* @flags: Socket flags value
* @type: Socket type value
* @success: Was send successful? (1 = yes, 0 = no)
*
* Context:
* The message receiver
*/
probe socket.receive = socket.recvmsg.return,
socket.readv.return ?,
socket.aio_read.return ?,
socket.read_iter.return ?
{
name = "socket.receive"
}
### FUNCTION SPECIFIC SEND/RECEIVE PROBES ###
/**
* probe socket.sendmsg - Message is currently being sent on a socket.
* @name: Name of this probe
* @size: Message size in bytes
* @protocol: Protocol value
* @family: Protocol family value
* @state: Socket state value
* @flags: Socket flags value
* @type: Socket type value
*
* Context:
* The message sender
*
* Fires at the beginning of sending a message on a socket
* via the sock_sendmsg() function
*/
//
// 4.1-rc1:
// int sock_sendmsg(struct socket *sock, struct msghdr *msg);
// before 4.1-rc1:
// int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size);
//
probe socket.sendmsg = kernel.function ("sock_sendmsg")
{
name = "socket.sendmsg"
size = @choose_defined($size, @msg_data_left($msg))
protocol = @_sock_prot_num($sock)
family = @_sock_fam_num($sock)
state = @_sock_state_num($sock)
flags = @_sock_flags_num($sock)
type = @_sock_type_num($sock)
}
/**
* probe socket.sendmsg.return - Return from socket.sendmsg.
* @name: Name of this probe
* @size: Size of message sent (in bytes) or error code if success = 0
* @protocol: Protocol value
* @family: Protocol family value
* @state: Socket state value
* @flags: Socket flags value
* @type: Socket type value
* @success: Was send successful? (1 = yes, 0 = no)
*
* Context:
* The message sender.
*
* Fires at the conclusion of sending a message on a socket
* via the sock_sendmsg() function
*/
probe socket.sendmsg.return = kernel.function("sock_sendmsg").return
{
name = "socket.sendmsg.return"
size = $return
protocol = @entry(@_sock_prot_num($sock))
family = @entry(@_sock_fam_num($sock))
state = @entry(@_sock_state_num($sock))
flags = @entry(@_sock_flags_num($sock))
type = @entry(@_sock_type_num($sock))
success = @_sock_success_check($return)
}
/**
* probe socket.recvmsg - Message being received on socket
* @name: Name of this probe
* @size: Message size in bytes
* @protocol: Protocol value
* @family: Protocol family value
* @state: Socket state value
* @flags: Socket flags value
* @type: Socket type value
*
* Context:
* The message receiver.
*
* Fires at the beginning of receiving a message on a socket
* via the sock_recvmsg() function
*
*/
probe socket.recvmsg = kernel.function("sock_recvmsg")
{
name = "socket.recvmsg"
size = @choose_defined($size, @msg_data_left($msg))
protocol = @_sock_prot_num($sock)
family = @_sock_fam_num($sock)
state = @_sock_state_num($sock)
flags = @_sock_flags_num($sock)
type = @_sock_type_num($sock)
}
/**
* probe socket.recvmsg.return - Return from Message being received on socket
* @name: Name of this probe
* @size: Size of message received (in bytes) or error code if success = 0
* @protocol: Protocol value
* @family: Protocol family value
* @state: Socket state value
* @flags: Socket flags value
* @type: Socket type value
* @success: Was receive successful? (1 = yes, 0 = no)
*
* Context:
* The message receiver.
*
* Fires at the conclusion of receiving a message on a socket
* via the sock_recvmsg() function.
*
*
*/
probe socket.recvmsg.return = kernel.function("sock_recvmsg").return
{
name = "socket.recvmsg.return"
size = $return
protocol = @entry(@_sock_prot_num($sock))
family = @entry(@_sock_fam_num($sock))
state = @entry(@_sock_state_num($sock))
flags = @entry(@_sock_flags_num($sock))
type = @entry(@_sock_type_num($sock))
success = @_sock_success_check($return)
}
/**
* probe socket.aio_write - Message send via sock_aio_write()
* @name: Name of this probe
* @size: Message size in bytes
* @protocol: Protocol value
* @family: Protocol family value
* @state: Socket state value
* @flags: Socket flags value
* @type: Socket type value
*
* Context:
* The message sender
*
* Fires at the beginning of sending a message on a socket
* via the sock_aio_write() function
*/
//
// 2.6.9~2.6.15:
// static ssize_t sock_aio_write(struct kiocb *iocb,
// const char __user *ubuf, size_t size, loff_t pos);
// 2.6.16~2.6.18:
// static ssize_t sock_aio_write(struct kiocb *iocb,
// const char __user *ubuf, size_t count, loff_t pos);
// 2.6.19~2.6.26:
// static ssize_t sock_aio_write(struct kiocb *iocb,
// const struct iovec *iov, unsigned long nr_segs, loff_t pos);
// 4.0:
// sock_aio_write() was removed in kernel 4.0 in favor of
// sock_write_iter().
probe socket.aio_write = kernel.function("sock_aio_write") ?
{
name = "socket.aio_write"
_sock = _get_sock_addr($iocb->ki_filp)
size = (@defined($iov) ? _get_sock_size($iov, $nr_segs)
: @choose_defined($count, $size))
protocol = @_sock_prot_num(@cast(_sock, "socket", "kernel"))
family = @_sock_fam_num(@cast(_sock, "socket", "kernel"))
state = @_sock_state_num(@cast(_sock, "socket", "kernel"))
flags = @_sock_flags_num(@cast(_sock, "socket", "kernel"))
type = @_sock_type_num(@cast(_sock, "socket", "kernel"))
}
/**
* probe socket.aio_write.return - Conclusion of message send via sock_aio_write()
* @name: Name of this probe
* @size: Size of message received (in bytes) or error code if success = 0
* @protocol: Protocol value
* @family: Protocol family value
* @state: Socket state value
* @flags: Socket flags value
* @type: Socket type value
* @success: Was receive successful? (1 = yes, 0 = no)
*
* Context:
* The message receiver.
*
* Fires at the conclusion of sending a message on a socket
* via the sock_aio_write() function
*/
probe socket.aio_write.return = kernel.function("sock_aio_write").return ?
{
name = "socket.aio_write.return"
size = $return
_sock = _get_sock_addr(@entry($iocb->ki_filp))
protocol = @_sock_prot_num(@cast(_sock, "socket", "kernel"))
family = @_sock_fam_num(@cast(_sock, "socket", "kernel"))
state = @_sock_state_num(@cast(_sock, "socket", "kernel"))
flags = @_sock_flags_num(@cast(_sock, "socket", "kernel"))
type = @_sock_type_num(@cast(_sock, "socket", "kernel"))
success = @_sock_success_check($return)
}
/**
* probe socket.aio_read - Receiving message via sock_aio_read()
* @name: Name of this probe
* @size: Message size in bytes
* @protocol: Protocol value
* @family: Protocol family value
* @state: Socket state value
* @flags: Socket flags value
* @type: Socket type value
*
* Context:
* The message sender
*
* Fires at the beginning of receiving a message on a socket
* via the sock_aio_read() function
*/
//
// 2.6.9~2.6.15:
// static ssize_t sock_aio_read(struct kiocb *iocb, char __user *ubuf,
// size_t size, loff_t pos);
// 2.6.16~2.6.18:
// static ssize_t sock_aio_read(struct kiocb *iocb, char __user *ubuf,
// size_t count, loff_t pos);
// 2.6.19~2.6.26:
// static ssize_t sock_aio_read(struct kiocb *iocb,
// const struct iovec *iov, unsigned long nr_segs, loff_t pos);
// 4.0:
// sock_aio_read() was removed in kernel 4.0 in favor of
// sock_read_iter().
probe socket.aio_read = kernel.function("sock_aio_read") ?
{
name = "socket.aio_read"
_sock = _get_sock_addr($iocb->ki_filp)
size = (@defined($iov) ? _get_sock_size($iov, $nr_segs)
: @choose_defined($count, $size))
protocol = @_sock_prot_num(@cast(_sock, "socket", "kernel"))
family = @_sock_fam_num(@cast(_sock, "socket", "kernel"))
state = @_sock_state_num(@cast(_sock, "socket", "kernel"))
flags = @_sock_flags_num(@cast(_sock, "socket", "kernel"))
type = @_sock_type_num(@cast(_sock, "socket", "kernel"))
}
/**
* probe socket.aio_read.return - Conclusion of message received via sock_aio_read()
* @name: Name of this probe
* @size: Size of message received (in bytes) or error code if success = 0
* @protocol: Protocol value
* @family: Protocol family value
* @state: Socket state value
* @flags: Socket flags value
* @type: Socket type value
* @success: Was receive successful? (1 = yes, 0 = no)
*
* Context:
* The message receiver.
*
* Fires at the conclusion of receiving a message on a socket
* via the sock_aio_read() function
*/
probe socket.aio_read.return = kernel.function("sock_aio_read").return ?
{
name = "socket.aio_read.return"
size = $return
_sock = _get_sock_addr(@entry($iocb->ki_filp))
protocol = @_sock_prot_num(@cast(_sock, "socket", "kernel"))
family = @_sock_fam_num(@cast(_sock, "socket", "kernel"))
state = @_sock_state_num(@cast(_sock, "socket", "kernel"))
flags = @_sock_flags_num(@cast(_sock, "socket", "kernel"))
type = @_sock_type_num(@cast(_sock, "socket", "kernel"))
success = @_sock_success_check($return)
}
/**
* probe socket.write_iter - Message send via sock_write_iter()
* @name: Name of this probe
* @size: Message size in bytes
* @protocol: Protocol value
* @family: Protocol family value
* @state: Socket state value
* @flags: Socket flags value
* @type: Socket type value
*
* Context:
* The message sender
*
* Fires at the beginning of sending a message on a socket
* via the sock_write_iter() function
*/
//
// 4.0:
// static ssize_t sock_write_iter(struct kiocb *iocb,
// struct iov_iter *from);
probe socket.write_iter = kernel.function("sock_write_iter") ?
{
name = "socket.write_iter"
_sock = _get_sock_addr($iocb->ki_filp)
if ($from->type & @const("ITER_IOVEC"))
size = __iov_length($from->iov, $from->nr_segs, 1,
@const("VERIFY_READ"))
else
size = 0
protocol = @_sock_prot_num(@cast(_sock, "socket", "kernel"))
family = @_sock_fam_num(@cast(_sock, "socket", "kernel"))
state = @_sock_state_num(@cast(_sock, "socket", "kernel"))
flags = @_sock_flags_num(@cast(_sock, "socket", "kernel"))
type = @_sock_type_num(@cast(_sock, "socket", "kernel"))
}
/**
* probe socket.write_iter.return - Conclusion of message send via sock_write_iter()
* @name: Name of this probe
* @size: Size of message received (in bytes) or error code if success = 0
* @protocol: Protocol value
* @family: Protocol family value
* @state: Socket state value
* @flags: Socket flags value
* @type: Socket type value
* @success: Was receive successful? (1 = yes, 0 = no)
*
* Context:
* The message receiver.
*
* Fires at the conclusion of sending a message on a socket
* via the sock_write_iter() function
*/
probe socket.write_iter.return = kernel.function("sock_write_iter").return ?
{
name = "socket.write_iter.return"
size = $return
_sock = _get_sock_addr(@entry($iocb->ki_filp))
protocol = @_sock_prot_num(@cast(_sock, "socket", "kernel"))
family = @_sock_fam_num(@cast(_sock, "socket", "kernel"))
state = @_sock_state_num(@cast(_sock, "socket", "kernel"))
flags = @_sock_flags_num(@cast(_sock, "socket", "kernel"))
type = @_sock_type_num(@cast(_sock, "socket", "kernel"))
success = @_sock_success_check($return)
}
/**
* probe socket.read_iter - Receiving message via sock_read_iter()
* @name: Name of this probe
* @size: Message size in bytes
* @protocol: Protocol value
* @family: Protocol family value
* @state: Socket state value
* @flags: Socket flags value
* @type: Socket type value
*
* Context:
* The message sender
*
* Fires at the beginning of receiving a message on a socket
* via the sock_read_iter() function
*/
//
// 4.0:
// static ssize_t sock_read_iter(struct kiocb *iocb, struct iov_iter *to);
probe socket.read_iter = kernel.function("sock_read_iter") ?
{
name = "socket.read_iter"
_sock = _get_sock_addr($iocb->ki_filp)
if ($to->type & @const("ITER_IOVEC"))
size = __iov_length($to->iov, $to->nr_segs, 1,
@const("VERIFY_WRITE"))
else
size = 0
protocol = @_sock_prot_num(@cast(_sock, "socket", "kernel"))
family = @_sock_fam_num(@cast(_sock, "socket", "kernel"))
state = @_sock_state_num(@cast(_sock, "socket", "kernel"))
flags = @_sock_flags_num(@cast(_sock, "socket", "kernel"))
type = @_sock_type_num(@cast(_sock, "socket", "kernel"))
}
/**
* probe socket.read_iter.return - Conclusion of message received via sock_read_iter()
* @name: Name of this probe
* @size: Size of message received (in bytes) or error code if success = 0
* @protocol: Protocol value
* @family: Protocol family value
* @state: Socket state value
* @flags: Socket flags value
* @type: Socket type value
* @success: Was receive successful? (1 = yes, 0 = no)
*
* Context:
* The message receiver.
*
* Fires at the conclusion of receiving a message on a socket
* via the sock_read_iter() function
*/
probe socket.read_iter.return = kernel.function("sock_read_iter").return ?
{
name = "socket.read_iter.return"
size = $return
_sock = _get_sock_addr(@entry($iocb->ki_filp))
protocol = @_sock_prot_num(@cast(_sock, "socket", "kernel"))
family = @_sock_fam_num(@cast(_sock, "socket", "kernel"))
state = @_sock_state_num(@cast(_sock, "socket", "kernel"))
flags = @_sock_flags_num(@cast(_sock, "socket", "kernel"))
type = @_sock_type_num(@cast(_sock, "socket", "kernel"))
success = @_sock_success_check($return)
}
/**
* probe socket.writev - Message sent via socket_writev()
* @name: Name of this probe
* @size: Message size in bytes
* @protocol: Protocol value
* @family: Protocol family value
* @state: Socket state value
* @flags: Socket flags value
* @type: Socket type value
*
* Context:
* The message sender
*
* Fires at the beginning of sending a message on a socket
* via the sock_writev() function
*/
probe socket.writev = kernel.function("sock_writev") ?
{
name = "socket.writev"
_sock = _get_sock_addr($file)
size = (@defined($iov) ? _get_sock_size($iov, $nr_segs)
: _get_sock_size($vector, $count))
protocol = @_sock_prot_num(@cast(_sock, "socket", "kernel"))
family = @_sock_fam_num(@cast(_sock, "socket", "kernel"))
state = @_sock_state_num(@cast(_sock, "socket", "kernel"))
flags = @_sock_flags_num(@cast(_sock, "socket", "kernel"))
type = @_sock_type_num(@cast(_sock, "socket", "kernel"))
}
/**
* probe socket.writev.return - Conclusion of message sent via socket_writev()
* @name: Name of this probe
* @size: Size of message sent (in bytes) or error code if success = 0
* @protocol: Protocol value
* @family: Protocol family value
* @state: Socket state value
* @flags: Socket flags value
* @type: Socket type value
* @success: Was send successful? (1 = yes, 0 = no)
*
* Context:
* The message receiver.
*
* Fires at the conclusion of sending a message on a socket
* via the sock_writev() function
*/
probe socket.writev.return = kernel.function("sock_writev").return ?
{
name = "socket.writev.return"
size = $return
_sock = _get_sock_addr(@entry($file))
protocol = @_sock_prot_num(@cast(_sock, "socket", "kernel"))
family = @_sock_fam_num(@cast(_sock, "socket", "kernel"))
state = @_sock_state_num(@cast(_sock, "socket", "kernel"))
flags = @_sock_flags_num(@cast(_sock, "socket", "kernel"))
type = @_sock_type_num(@cast(_sock, "socket", "kernel"))
success = @_sock_success_check($return)
}
/**
* probe socket.readv - Receiving a message via sock_readv()
* @name: Name of this probe
* @size: Message size in bytes
* @protocol: Protocol value
* @family: Protocol family value
* @state: Socket state value
* @flags: Socket flags value
* @type: Socket type value
*
* Context:
* The message sender
*
* Fires at the beginning of receiving a message on a socket
* via the sock_readv() function
*/
probe socket.readv = kernel.function("sock_readv") ?
{
name = "socket.readv"
_sock = _get_sock_addr($file)
size = (@defined($iov) ? _get_sock_size($iov, $nr_segs)
: _get_sock_size($vector, $count))
protocol = @_sock_prot_num(@cast(_sock, "socket", "kernel"))
family = @_sock_fam_num(@cast(_sock, "socket", "kernel"))
state = @_sock_state_num(@cast(_sock, "socket", "kernel"))
flags = @_sock_flags_num(@cast(_sock, "socket", "kernel"))
type = @_sock_type_num(@cast(_sock, "socket", "kernel"))
}
/**
* probe socket.readv.return - Conclusion of receiving a message via sock_readv()
* @name: Name of this probe
* @size: Size of message received (in bytes) or error code if success = 0
* @protocol: Protocol value
* @family: Protocol family value
* @state: Socket state value
* @flags: Socket flags value
* @type: Socket type value
* @success: Was receive successful? (1 = yes, 0 = no)
*
* Context:
* The message receiver.
*
* Fires at the conclusion of receiving a message on a socket
* via the sock_readv() function
*/
probe socket.readv.return = kernel.function("sock_readv").return ?
{
name = "socket.readv.return"
size = $return
_sock = _get_sock_addr(@entry($file))
protocol = @_sock_prot_num(@cast(_sock, "socket", "kernel"))
family = @_sock_fam_num(@cast(_sock, "socket", "kernel"))
state = @_sock_state_num(@cast(_sock, "socket", "kernel"))
flags = @_sock_flags_num(@cast(_sock, "socket", "kernel"))
type = @_sock_type_num(@cast(_sock, "socket", "kernel"))
success = @_sock_success_check($return)
}
/**
* probe socket.create - Creation of a socket
* @name: Name of this probe
* @protocol: Protocol value
* @family: Protocol family value
* @type: Socket type value
* @requester: Requested by user process or the kernel (1 = kernel, 0 = user)
*
* Context:
* The requester (see requester variable)
*
* Fires at the beginning of creating a socket.
*/
probe socket.create = kernel.function("__sock_create")
{
name = "socket.create"
protocol = $protocol
family = $family
type = $type
requester = $kern
}
/**
* probe socket.create.return - Return from Creation of a socket
* @name: Name of this probe
* @protocol: Protocol value
* @family: Protocol family value
* @type: Socket type value
* @requester: Requested by user process or the kernel (1 = kernel, 0 = user)
* @err: Error code if success == 0
* @success: Was socket creation successful? (1 = yes, 0 = no)
*
* Context:
* The requester (user process or kernel)
*
* Fires at the conclusion of creating a socket.
*/
probe socket.create.return = kernel.function("__sock_create").return
{
name = "socket.create.return"
protocol = @entry($protocol)
family = @entry($family)
type = @entry($type)
requester = @entry($kern)
err = $return
success = @_sock_success_check($return)
}
/**
* probe socket.close - Close a socket
* @name: Name of this probe
* @protocol: Protocol value
* @family: Protocol family value
* @state: Socket state value
* @flags: Socket flags value
* @type: Socket type value
*
* Context:
* The requester (user process or kernel)
*
* Fires at the beginning of closing a socket.
*/
probe socket.close = kernel.function("sock_release")
{
name = "socket.close"
protocol = @_sock_prot_num($sock)
family = @_sock_fam_num($sock)
state = @_sock_state_num($sock)
flags = @_sock_flags_num($sock)
type = @_sock_type_num($sock)
}
/**
* probe socket.close.return - Return from closing a socket
* @name: Name of this probe
*
* Context:
* The requester (user process or kernel)
*
* Fires at the conclusion of closing a socket.
*/
probe socket.close.return = kernel.function("sock_release").return
{
name = "socket.close.return"
/* void return */
}
##################
# USER FUNCTIONS #
##################
####### PROTOCOL HELPER FUNCTIONS ########
/**
* sfunction sock_prot_num2str - Given a protocol number, return a string representation
* @proto: The protocol number
*/
function sock_prot_num2str:string(proto:long)
{
return (proto in _prot_num2str ? _prot_num2str[proto] : "UNDEF")
}
/**
* sfunction sock_prot_str2num - Given a protocol name (string), return the corresponding protocol number
* @proto: The protocol name
*/
function sock_prot_str2num:long(proto:string)
{
return (proto in _prot_str2num ? _prot_str2num[proto] : -1)
}
######### PROTOCOL FAMILY HELPER FUNCTIONS ###########
/**
* sfunction sock_fam_num2str - Given a protocol family number, return a string representation
* @family: The family number
*/
function sock_fam_num2str:string(family:long)
{
return (family in _fam_num2str ? _fam_num2str[family] : "UNDEF")
}
/**
* sfunction sock_fam_str2num - Given a protocol family name (string), return the corresponding protocol family number
* @family: The family name
*/
function sock_fam_str2num:long(family:string)
{
return (family in _fam_str2num ? _fam_str2num[family] : -1)
}
######### SOCKET STATE HELPER FUNCTIONS ##########
/**
* sfunction sock_state_num2str - Given a socket state number, return a string representation
* @state: The state number
*/
function sock_state_num2str:string(state:long)
{
return (state in _state_num2str ? _state_num2str[state] : "UNDEF")
}
/**
* sfunction sock_state_str2num - Given a socket state string, return the corresponding state number
* @state: The state name
*/
function sock_state_str2num:long(state:string)
{
return (state in _state_str2num ? _state_str2num[state] : -1)
}
######## SOCKET TYPE HELPER FUNCTIONS ########
function sock_type_num2str:string(type:long)
{
return (type in _type_num2str ? _type_num2str[type] : "UNDEF")
}
function sock_type_str2num:long(type:string)
{
return (type in _type_str2num ? _type_str2num[type] : -1)
}
######### SOCKET FLAGS HELPER FUNCTIONS #########
function sock_flags_num2str:string(flags:long)
%{ /* pure */
#ifndef SOCK_PASSCRED
#define SOCK_PASSCRED 3 /* introduced in 2.6.12? */
#endif
#ifndef SOCK_PASSSEC
#define SOCK_PASSSEC 4 /* introduced in 2.6.18 */
#endif
#ifndef SOCKWQ_ASYNC_NOSPACE /* renamed in 4.4 */
#define SOCKWQ_ASYNC_NOSPACE SOCK_ASYNC_NOSPACE
#endif
#ifndef SOCKWQ_ASYNC_WAITDATA /* renamed in 4.4 */
#define SOCKWQ_ASYNC_WAITDATA SOCK_ASYNC_WAITDATA
#endif
unsigned long flags = STAP_ARG_flags;
STAP_RETVALUE[0] = '\0';
if (test_bit(SOCKWQ_ASYNC_NOSPACE, &flags))
strlcat(STAP_RETVALUE, "ASYNC_NOSPACE|", MAXSTRINGLEN);
if (test_bit(SOCKWQ_ASYNC_WAITDATA, &flags))
strlcat(STAP_RETVALUE, "ASYNC_WAITDATA|", MAXSTRINGLEN);
if (test_bit(SOCK_NOSPACE, &flags))
strlcat(STAP_RETVALUE, "NOSPACE|", MAXSTRINGLEN);
if (test_bit(SOCK_PASSCRED, &flags))
strlcat(STAP_RETVALUE, "PASSCRED|", MAXSTRINGLEN);
if (test_bit(SOCK_PASSSEC, &flags))
strlcat(STAP_RETVALUE, "PASSSEC|", MAXSTRINGLEN);
if (STAP_RETVALUE[0] != '\0')
STAP_RETVALUE[strlen(STAP_RETVALUE)-1] = '\0';
%}
######### MESSAGE FLAGS HELPER FUNCTIONS #########
function msg_flags_num2str:string(flags:long)
%{ /* pure */
STAP_RETVALUE[0] = '\0';
if (STAP_ARG_flags & MSG_OOB)
strlcat(STAP_RETVALUE, "OOB|", MAXSTRINGLEN);
if (STAP_ARG_flags & MSG_PEEK)
strlcat(STAP_RETVALUE, "PEEK|", MAXSTRINGLEN);
if (STAP_ARG_flags & MSG_DONTROUTE)
strlcat(STAP_RETVALUE, "DONTROUTE|", MAXSTRINGLEN);
if (STAP_ARG_flags & MSG_TRYHARD)
strlcat(STAP_RETVALUE, "TRYHARD|", MAXSTRINGLEN);
if (STAP_ARG_flags & MSG_CTRUNC)
strlcat(STAP_RETVALUE, "CTRUNC|", MAXSTRINGLEN);
if (STAP_ARG_flags & MSG_PROBE)
strlcat(STAP_RETVALUE, "PROBE|", MAXSTRINGLEN);
if (STAP_ARG_flags & MSG_TRUNC)
strlcat(STAP_RETVALUE, "TRUNC|", MAXSTRINGLEN);
if (STAP_ARG_flags & MSG_DONTWAIT)
strlcat(STAP_RETVALUE, "DONTWAIT|", MAXSTRINGLEN);
if (STAP_ARG_flags & MSG_EOR)
strlcat(STAP_RETVALUE, "EOR|", MAXSTRINGLEN);
if (STAP_ARG_flags & MSG_WAITALL)
strlcat(STAP_RETVALUE, "WAITALL|", MAXSTRINGLEN);
if (STAP_ARG_flags & MSG_FIN)
strlcat(STAP_RETVALUE, "FIN|", MAXSTRINGLEN);
if (STAP_ARG_flags & MSG_SYN)
strlcat(STAP_RETVALUE, "SYN|", MAXSTRINGLEN);
if (STAP_ARG_flags & MSG_CONFIRM)
strlcat(STAP_RETVALUE, "CONFIRM|", MAXSTRINGLEN);
if (STAP_ARG_flags & MSG_RST)
strlcat(STAP_RETVALUE, "RST|", MAXSTRINGLEN);
if (STAP_ARG_flags & MSG_ERRQUEUE)
strlcat(STAP_RETVALUE, "ERRQUEUE|", MAXSTRINGLEN);
if (STAP_ARG_flags & MSG_NOSIGNAL)
strlcat(STAP_RETVALUE, "NOSIGNAL|", MAXSTRINGLEN);
if (STAP_ARG_flags & MSG_MORE)
strlcat(STAP_RETVALUE, "MORE|", MAXSTRINGLEN);
if (STAP_RETVALUE[0] != '\0')
STAP_RETVALUE[strlen(STAP_RETVALUE)-1] = '\0';
%}
###########################
# INTERNAL MAPPING ARRAYS #
###########################
@__private30 global _prot_num2str[138], _prot_str2num[138]
@__private30 global _fam_num2str[34], _fam_str2num[34]
@__private30 global _state_num2str[5], _state_str2num[5]
@__private30 global _type_num2str[11], _type_str2num[11]
probe init
{
/* From /etc/protocols.
* Many of these protocols aren't currently used over
* sockets, but are included for completeness
*/
_prot_num2str[0] = "IP"
_prot_num2str[1] = "ICMP"
_prot_num2str[2] = "IGMP"
_prot_num2str[3] = "GGP"
_prot_num2str[4] = "IPENCAP"
_prot_num2str[5] = "ST"
_prot_num2str[6] = "TCP"
_prot_num2str[7] = "CBT"
_prot_num2str[8] = "EGP"
_prot_num2str[9] = "IGP"
_prot_num2str[10] = "BBN-RCC"
_prot_num2str[11] = "NVP"
_prot_num2str[12] = "PUP"
_prot_num2str[13] = "ARGUS"
_prot_num2str[14] = "EMCON"
_prot_num2str[15] = "XNET"
_prot_num2str[16] = "CHAOS"
_prot_num2str[17] = "UDP"
_prot_num2str[18] = "MUX"
_prot_num2str[19] = "DCN"
_prot_num2str[20] = "HMP"
_prot_num2str[21] = "PRM"
_prot_num2str[22] = "XNS-IDP"
_prot_num2str[23] = "TRUNK-1"
_prot_num2str[24] = "TRUNK-2"
_prot_num2str[25] = "LEAF-1"
_prot_num2str[26] = "LEAF-2"
_prot_num2str[27] = "RDP"
_prot_num2str[28] = "IRTP"
_prot_num2str[29] = "ISO-TP4"
_prot_num2str[30] = "NETBLT"
_prot_num2str[31] = "MFE-NSP"
_prot_num2str[32] = "MERIT-INP"
_prot_num2str[33] = "SEP"
_prot_num2str[34] = "3PC"
_prot_num2str[35] = "IDPR"
_prot_num2str[36] = "XTP"
_prot_num2str[37] = "DDP"
_prot_num2str[38] = "IDPR-CMTP"
_prot_num2str[39] = "TP++"
_prot_num2str[40] = "IL"
_prot_num2str[41] = "IPV6"
_prot_num2str[42] = "SDRP"
_prot_num2str[43] = "IPV6-ROUTE"
_prot_num2str[44] = "IPV6-FRAG"
_prot_num2str[45] = "IDRP"
_prot_num2str[46] = "RSVP"
_prot_num2str[47] = "GRE"
_prot_num2str[48] = "MHRP"
_prot_num2str[49] = "BNA"
_prot_num2str[50] = "IPV6-CRYPT"
_prot_num2str[51] = "IPV6-AUTH"
_prot_num2str[52] = "I-NLSP"
_prot_num2str[53] = "SWIPE"
_prot_num2str[54] = "NARP"
_prot_num2str[55] = "MOBILE"
_prot_num2str[56] = "TLSP"
_prot_num2str[57] = "SKIP"
_prot_num2str[58] = "IPV6-ICMP"
_prot_num2str[59] = "IPV6-NONXT"
_prot_num2str[60] = "IPV6-OPTS"
_prot_num2str[62] = "CFTP"
_prot_num2str[64] = "SAT-EXPAK"
_prot_num2str[65] = "KRYPTOLAN"
_prot_num2str[66] = "RVD"
_prot_num2str[67] = "IPPC"
_prot_num2str[69] = "SAT-MON"
_prot_num2str[70] = "VISA"
_prot_num2str[71] = "IPCV"
_prot_num2str[72] = "CPNX"
_prot_num2str[73] = "CPHB"
_prot_num2str[74] = "WSN"
_prot_num2str[75] = "PVP"
_prot_num2str[76] = "BR-SAT-MON"
_prot_num2str[77] = "SUN-ND"
_prot_num2str[78] = "WB-MON"
_prot_num2str[79] = "WB-EXPAK"
_prot_num2str[80] = "ISO-IP"
_prot_num2str[81] = "VMTP"
_prot_num2str[82] = "SECURE-VMTP"
_prot_num2str[83] = "VINES"
_prot_num2str[84] = "TTP"
_prot_num2str[85] = "NSFNET-IGP"
_prot_num2str[86] = "DGP"
_prot_num2str[87] = "TCF"
_prot_num2str[88] = "EIGRP"
_prot_num2str[89] = "OSPF"
_prot_num2str[90] = "SPRITE-RPC"
_prot_num2str[91] = "LARP"
_prot_num2str[92] = "MTP"
_prot_num2str[93] = "AX.25"
_prot_num2str[94] = "IPIP"
_prot_num2str[95] = "MICP"
_prot_num2str[96] = "SCC-SP"
_prot_num2str[97] = "ETHERIP"
_prot_num2str[98] = "ENCAP"
_prot_num2str[100] = "GMTP"
_prot_num2str[101] = "IFMP"
_prot_num2str[102] = "PNNI"
_prot_num2str[103] = "PIM"
_prot_num2str[104] = "ARIS"
_prot_num2str[105] = "SCPS"
_prot_num2str[106] = "QNX"
_prot_num2str[107] = "A/N"
_prot_num2str[108] = "IPCOMP"
_prot_num2str[109] = "SNP"
_prot_num2str[110] = "COMPAQ-PEER"
_prot_num2str[111] = "IPX-IN-IP"
_prot_num2str[112] = "VRRP"
_prot_num2str[113] = "PGM"
_prot_num2str[115] = "L2TP"
_prot_num2str[116] = "DDX"
_prot_num2str[117] = "IATP"
_prot_num2str[118] = "STP"
_prot_num2str[119] = "SRP"
_prot_num2str[120] = "UTI"
_prot_num2str[121] = "SMP"
_prot_num2str[122] = "SM"
_prot_num2str[123] = "PTP"
_prot_num2str[124] = "ISIS"
_prot_num2str[125] = "FIRE"
_prot_num2str[126] = "CRTP"
_prot_num2str[127] = "CRDUP"
_prot_num2str[128] = "SSCOPMCE"
_prot_num2str[129] = "IPLT"
_prot_num2str[130] = "SPS"
_prot_num2str[131] = "PIPE"
_prot_num2str[132] = "SCTP"
_prot_num2str[133] = "FC"
_prot_num2str[134] = "RSVP-E2E-IGNORE"
_prot_num2str[135] = "Mobility-Header"
_prot_num2str[136] = "UDPLite"
_prot_num2str[137] = "MPLS-IN-IP"
foreach (num in _prot_num2str)
_prot_str2num[_prot_num2str[num]] = num
/* from include/linux/socket.h */
_fam_num2str[0] = "UNSPEC"
_fam_num2str[1] = "LOCAL"
_fam_num2str[2] = "INET"
_fam_num2str[3] = "AX25"
_fam_num2str[4] = "IPX"
_fam_num2str[5] = "APPLETALK"
_fam_num2str[6] = "NETROM"
_fam_num2str[7] = "BRIDGE"
_fam_num2str[8] = "ATMPVC"
_fam_num2str[9] = "X25"
_fam_num2str[10] = "INET6"
_fam_num2str[11] = "ROSE"
_fam_num2str[12] = "DECNET"
_fam_num2str[13] = "NETBEUI"
_fam_num2str[14] = "SECURITY"
_fam_num2str[15] = "KEY"
_fam_num2str[16] = "NETLINK"
_fam_num2str[17] = "PACKET"
_fam_num2str[18] = "ASH"
_fam_num2str[19] = "ECONET"
_fam_num2str[20] = "ATMSVC"
_fam_num2str[22] = "SNA"
_fam_num2str[23] = "IRDA"
_fam_num2str[24] = "PPPOX"
_fam_num2str[25] = "WANPIPE"
_fam_num2str[26] = "LLC"
_fam_num2str[30] = "TIPC"
_fam_num2str[31] = "BLUETOOTH"
_fam_num2str[32] = "IUCV"
_fam_num2str[33] = "RXRPC"
foreach (num in _fam_num2str)
_fam_str2num[_fam_num2str[num]] = num
/* from include/linux/net.h */
_state_num2str[0] = "FREE"
_state_num2str[1] = "UNCONNECTED"
_state_num2str[2] = "CONNECTING"
_state_num2str[3] = "CONNECTED"
_state_num2str[4] = "DISCONNECTING"
foreach (num in _state_num2str)
_state_str2num[_state_num2str[num]] = num
/* from include/linux/net.h */
_type_num2str[1] = "STREAM"
_type_num2str[2] = "DGRAM"
_type_num2str[3] = "RAW"
_type_num2str[4] = "RDM"
_type_num2str[5] = "SEQPACKET"
_type_num2str[6] = "DCCP"
_type_num2str[10] = "PACKET"
foreach (num in _type_num2str)
_type_str2num[_type_num2str[num]] = num
}
######################
# INTERNAL FUNCTIONS #
######################
@__private30 function _get_sock_addr:long(file:long)
%{ /* pure */
struct file *filep = (struct file *)(uintptr_t)(STAP_ARG_file);
struct socket *sockp;
if (filep) {
#ifdef STAPCONF_DPATH_PATH
struct dentry *dentry = kread(&(filep->f_path.dentry));
#else
struct dentry *dentry = kread(&(filep->f_dentry));
#endif
struct inode *inode = kread(&(dentry->d_inode));
sockp = &container_of(inode, struct socket_alloc,
vfs_inode)->socket;
}
else {
sockp = NULL;
}
if (sockp == NULL)
STAP_RETVALUE = -1;
else
STAP_RETVALUE = (long) sockp;
CATCH_DEREF_FAULT();
%}
@__private30 function _get_sock_size:long(iov:long, nr_segs:long)
%{ /* pure */
struct iovec *iovp = (struct iovec *)(uintptr_t)(STAP_ARG_iov);
if (iovp == NULL)
STAP_RETVALUE = -1;
else {
int i;
STAP_RETVALUE = 0;
for (i = 0 ; i < STAP_ARG_nr_segs ; i++)
STAP_RETVALUE += kread(&(iovp[i].iov_len));
}
CATCH_DEREF_FAULT();
%}
%( systemtap_v < "2.3" %?
function _success_check:long(ret:long)
{
return @_sock_success_check(ret)
}
function _sock_prot_num:long(sock:long)
{
return @_sock_prot_num(@cast(sock, "socket", "kernel"))
}
function _sock_fam_num:long(sock:long)
{
return @_sock_fam_num(@cast(sock, "socket", "kernel"))
}
function _sock_state_num:long(sock:long)
{
return @_sock_state_num(@cast(sock, "socket", "kernel"))
}
function _sock_type_num:long(sock:long)
{
return @_sock_type_num(@cast(sock, "socket", "kernel"))
}
function _sock_flags_num:long(sock:long)
{
return @_sock_flags_num(@cast(sock, "socket", "kernel"))
}
%)