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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")) } %)