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Red Hat Enterprise Linux 6 Essentials eBook now available in PDF and ePub formats for only $9.99
RHEL 6 Essentials contains 40 chapters and over 250 pages.

Chapter 12. Socket Tapset

probe::socket.send — Message sent on a socket.
probe::socket.receive — Message received on a socket.
probe::socket.sendmsg — Message is currently being sent on a socket.
probe::socket.sendmsg.return — Return from socket.sendmsg.
probe::socket.recvmsg — Message being received on socket
probe::socket.recvmsg.return — Return from Message being received on socket
probe::socket.aio_write — Message send via sock_aio_write
probe::socket.aio_write.return — Conclusion of message send via sock_aio_write
probe::socket.aio_read — Receiving message via sock_aio_read
probe::socket.aio_read.return — Conclusion of message received via sock_aio_read
probe::socket.writev — Message sent via socket_writev
probe::socket.writev.return — Conclusion of message sent via socket_writev
probe::socket.readv — Receiving a message via sock_readv
probe::socket.readv.return — Conclusion of receiving a message via sock_readv
probe::socket.create — Creation of a socket
probe::socket.create.return — Return from Creation of a socket
probe::socket.close — Close a socket
probe::socket.close.return — Return from closing a socket
function::sock_prot_num2str — Given a protocol number, return a string representation.
function::sock_prot_str2num — Given a protocol name (string), return the corresponding protocol number.
function::sock_fam_num2str — Given a protocol family number, return a string representation.
function::sock_fam_str2num — Given a protocol family name (string), return the corresponding
function::sock_state_num2str — Given a socket state number, return a string representation.
function::sock_state_str2num — Given a socket state string, return the corresponding state number.
This family of probe points is used to probe socket activities. It contains the following probe points:

Name

probe::socket.send — Message sent on a socket.

Synopsis

socket.send

Values

success
Was send successful? (1 = yes, 0 = no)
protocol
Protocol value
flags
Socket flags value
name
Name of this probe
state
Socket state value
size
Size of message sent (in bytes) or error code if success = 0
type
Socket type value
family
Protocol family value

Context

The message sender

Name

probe::socket.receive — Message received on a socket.

Synopsis

socket.receive

Values

success
Was send successful? (1 = yes, 0 = no)
protocol
Protocol value
flags
Socket flags value
name
Name of this probe
state
Socket state value
size
Size of message received (in bytes) or error code if success = 0
type
Socket type value
family
Protocol family value

Context

The message receiver

Name

probe::socket.sendmsg — Message is currently being sent on a socket.

Synopsis

socket.sendmsg

Values

protocol
Protocol value
flags
Socket flags value
name
Name of this probe
state
Socket state value
size
Message size in bytes
type
Socket type value
family
Protocol family value

Context

The message sender

Description

Fires at the beginning of sending a message on a socket via the sock_sendmsg function

Name

probe::socket.sendmsg.return — Return from socket.sendmsg.

Synopsis

socket.sendmsg.return

Values

success
Was send successful? (1 = yes, 0 = no)
protocol
Protocol value
flags
Socket flags value
name
Name of this probe
state
Socket state value
size
Size of message sent (in bytes) or error code if success = 0
type
Socket type value
family
Protocol family value

Context

The message sender.

Description

Fires at the conclusion of sending a message on a socket via the sock_sendmsg function

Name

probe::socket.recvmsg — Message being received on socket

Synopsis

socket.recvmsg

Values

protocol
Protocol value
flags
Socket flags value
name
Name of this probe
state
Socket state value
size
Message size in bytes
type
Socket type value
family
Protocol family value

Context

The message receiver.

Description

Fires at the beginning of receiving a message on a socket via the sock_recvmsg function

Name

probe::socket.recvmsg.return — Return from Message being received on socket

Synopsis

socket.recvmsg.return

Values

success
Was receive successful? (1 = yes, 0 = no)
protocol
Protocol value
flags
Socket flags value
name
Name of this probe
state
Socket state value
size
Size of message received (in bytes) or error code if success = 0
type
Socket type value
family
Protocol family value

Context

The message receiver.

Description

Fires at the conclusion of receiving a message on a socket via the sock_recvmsg function.

Name

probe::socket.aio_write — Message send via sock_aio_write

Synopsis

socket.aio_write

Values

protocol
Protocol value
flags
Socket flags value
name
Name of this probe
state
Socket state value
size
Message size in bytes
type
Socket type value
family
Protocol family value

Context

The message sender

Description

Fires at the beginning of sending a message on a socket via the sock_aio_write function

Name

probe::socket.aio_write.return — Conclusion of message send via sock_aio_write

Synopsis

socket.aio_write.return

Values

success
Was receive successful? (1 = yes, 0 = no)
protocol
Protocol value
flags
Socket flags value
name
Name of this probe
state
Socket state value
size
Size of message received (in bytes) or error code if success = 0
type
Socket type value
family
Protocol family value

Context

The message receiver.

Description

Fires at the conclusion of sending a message on a socket via the sock_aio_write function

Name

probe::socket.aio_read — Receiving message via sock_aio_read

Synopsis

socket.aio_read

Values

protocol
Protocol value
flags
Socket flags value
name
Name of this probe
state
Socket state value
size
Message size in bytes
type
Socket type value
family
Protocol family value

Context

The message sender

Description

Fires at the beginning of receiving a message on a socket via the sock_aio_read function

Name

probe::socket.aio_read.return — Conclusion of message received via sock_aio_read

Synopsis

socket.aio_read.return

Values

success
Was receive successful? (1 = yes, 0 = no)
protocol
Protocol value
flags
Socket flags value
name
Name of this probe
state
Socket state value
size
Size of message received (in bytes) or error code if success = 0
type
Socket type value
family
Protocol family value

Context

The message receiver.

Description

Fires at the conclusion of receiving a message on a socket via the sock_aio_read function

Name

probe::socket.writev — Message sent via socket_writev

Synopsis

socket.writev

Values

protocol
Protocol value
flags
Socket flags value
name
Name of this probe
state
Socket state value
size
Message size in bytes
type
Socket type value
family
Protocol family value

Context

The message sender

Description

Fires at the beginning of sending a message on a socket via the sock_writev function

Name

probe::socket.writev.return — Conclusion of message sent via socket_writev

Synopsis

socket.writev.return

Values

success
Was send successful? (1 = yes, 0 = no)
protocol
Protocol value
flags
Socket flags value
name
Name of this probe
state
Socket state value
size
Size of message sent (in bytes) or error code if success = 0
type
Socket type value
family
Protocol family value

Context

The message receiver.

Description

Fires at the conclusion of sending a message on a socket via the sock_writev function

Name

probe::socket.readv — Receiving a message via sock_readv

Synopsis

socket.readv

Values

protocol
Protocol value
flags
Socket flags value
name
Name of this probe
state
Socket state value
size
Message size in bytes
type
Socket type value
family
Protocol family value

Context

The message sender

Description

Fires at the beginning of receiving a message on a socket via the sock_readv function

Name

probe::socket.readv.return — Conclusion of receiving a message via sock_readv

Synopsis

socket.readv.return

Values

success
Was receive successful? (1 = yes, 0 = no)
protocol
Protocol value
flags
Socket flags value
name
Name of this probe
state
Socket state value
size
Size of message received (in bytes) or error code if success = 0
type
Socket type value
family
Protocol family value

Context

The message receiver.

Description

Fires at the conclusion of receiving a message on a socket via the sock_readv function

Name

probe::socket.create — Creation of a socket

Synopsis

socket.create

Values

protocol
Protocol value
name
Name of this probe
requester
Requested by user process or the kernel (1 = kernel, 0 = user)
type
Socket type value
family
Protocol family value

Context

The requester (see requester variable)

Description

Fires at the beginning of creating a socket.

Name

probe::socket.create.return — Return from Creation of a socket

Synopsis

socket.create.return

Values

success
Was socket creation successful? (1 = yes, 0 = no)
protocol
Protocol value
err
Error code if success == 0
name
Name of this probe
requester
Requested by user process or the kernel (1 = kernel, 0 = user)
type
Socket type value
family
Protocol family value

Context

The requester (user process or kernel)

Description

Fires at the conclusion of creating a socket.

Name

probe::socket.close — Close a socket

Synopsis

socket.close

Values

protocol
Protocol value
flags
Socket flags value
name
Name of this probe
state
Socket state value
type
Socket type value
family
Protocol family value

Context

The requester (user process or kernel)

Description

Fires at the beginning of closing a socket.

Name

probe::socket.close.return — Return from closing a socket

Synopsis

socket.close.return

Values

name
Name of this probe

Context

The requester (user process or kernel)

Description

Fires at the conclusion of closing a socket.

Name

function::sock_prot_num2str — Given a protocol number, return a string representation.

Synopsis

function sock_prot_num2str:string(proto:long)

Arguments

proto
The protocol number.

Name

function::sock_prot_str2num — Given a protocol name (string), return the corresponding protocol number.

Synopsis

function sock_prot_str2num:long(proto:string)

Arguments

proto
The protocol name.

Name

function::sock_fam_num2str — Given a protocol family number, return a string representation.

Synopsis

function sock_fam_num2str:string(family:long)

Arguments

family
The family number.

Name

function::sock_fam_str2num — Given a protocol family name (string), return the corresponding

Synopsis

function sock_fam_str2num:long(family:string)

Arguments

family
The family name.

Description

protocol family number.

Name

function::sock_state_num2str — Given a socket state number, return a string representation.

Synopsis

function sock_state_num2str:string(state:long)

Arguments

state
The state number.

Name

function::sock_state_str2num — Given a socket state string, return the corresponding state number.

Synopsis

function sock_state_str2num:long(state:string)

Arguments

state
The state name.

 
 
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