CN106325982A - shell processing method and device - Google Patents
shell processing method and device Download PDFInfo
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- CN106325982A CN106325982A CN201510349477.5A CN201510349477A CN106325982A CN 106325982 A CN106325982 A CN 106325982A CN 201510349477 A CN201510349477 A CN 201510349477A CN 106325982 A CN106325982 A CN 106325982A
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- shell
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- telnet
- selection signal
- display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/48—Program initiating; Program switching, e.g. by interrupt
Abstract
The invention provides a shell processing method and device. The shell processing method includes: receiving first display request information; displaying a shell list according to the first display request information, wherein the shell list includes more than two shells; receiving a selection signal, wherein the selection signal is used for selecting a preset shell from the shell list; and switching to processing of the preset shell according to the selection signal. According to the shell processing method and device, a plurality of shells can be displayed in the form of a list, and switch among the plurality of shells can be performed according to the demands of a user; the problem that the user experience is poor due to the fact that the complexity is high and the switch efficiency is low when switch among the plurality of shells is performed in the correlation techniques can be solved; and the complexity is lowered and the switch efficiency is improved when switch among the plurality of shells is performed, and then the user experience is improved.
Description
Technical field
The present invention relates to the communications field, in particular to shell processing method and processing device.
Background technology
Shell refers to the software (command analysis device) of " providing user to use interface ", and it receives user command, then
Call corresponding application program to meet the demand of user.Shell management user and system between mutual, can be simple
It is described as: shell waits user's input, explains the input of user to system, and process various system output knot
Really.In order to take into account demand and the needs of exploitation debugging maintenance of client, complete system typically can design multiple shell,
They are generally divided into oam (the Operation Administration and for product user
Maintenance, referred to as OAM) shell and the Debugging shell for exploitation commissioning staff.
Usually, product user is only in the face of OAM shell, and product user passes through various orders and the parameter of OAM shell
Oneself product the most self-defined, they are indifferent to the realization mechanism of inside, and Debugging shell is for them
It is sightless, does not the most allow operation.But during the exploitation link and later maintenance of product, Debugging shell
Play great function, rely on internal debugging order and the method for Debugging shell, fault can be eliminated rapidly,
Effectively reduce the cost consumption that exploitation fault is brought, dispose both shell the most in systems, how to realize same
Under user interface, the friendly display of two kinds of shell and fast switching, become a difficult problem for product development and debugging.
In the related, the shell of system deployment generally only two, an OAM shell and a Debugging
Shell, switching between two shell is also to be switched by shortcut, but switching not prompting, there is no list yet,
And if it is intended to dispose other Debuggings shell, can only be realized by Telnet telnet server, operate
The most complicated.If additionally remote client wants telnet to use shell, because a network port can only correspondence one
Shell, if remote client wants to sign in other shell, corresponding open port also must increase, and this is unfavorable
In the safety of whole system, and, telnet a window login one shell, its shell must log in complexity
Height, the more difficult realization of switching between multiple shell.
Further, a general medium-and-large-sized communication equipment also exists optical link in polylith subset, such as broadband access system
Terminal (Optical Line Terminal, the referred to as OLT) main control board of equipment, slave control board and network processes
Device plate, in order to the safety of system is considered, system can only provide an external operation interface and communication interface, the most primary master
The shell of control plate and port, if slave control board to be logined or the shell of network processing unit plate, it is necessary to from master
Logging in carrying out telnet on master control borad plate, this increases the complexity of shell of whole system especially, if also according to
If shell deployment way in correlation technique, exploitation commissioning staff's operating experience degree can be caused to decline, Debugging is difficult
Degree increases, and exploitation maintenance time lengthens, and then causes whole process cost to promote.
It follows that for complicated debugging demand, system there may be one or more OAM shell and multiple
Debugging shell, correlation technique can not well meet product user at one or more OAM shell and
The demand of switching between multiple Debugging shell.Switch between multiple shell present in correlation technique
Time, complexity is high, and switching efficiency is low, thus the problem that the user experience caused reduces, the most not yet propose effective
Solution.
Summary of the invention
The invention provides shell processing method and processing device, many at least to solve in correlation technique present in correlation technique
When switching between individual shell, complexity is high, and switching efficiency is low, thus the problem that the user experience caused reduces.
According to an aspect of the invention, it is provided a kind of shell processing method, including: receive the first display request letter
Breath；According to described first display solicited message display shell list, wherein, described shell list includes two or more
shell；Receiving and select signal, wherein, described selection signal is for selecting predetermined shell from described shell list；Root
Perform to be switched to the process of described predetermined shell according to described selection signal.
Alternatively, receive described first display solicited message to include: receive the described first display request of local user's input
Information and/or, receive Telnet Telnet server forward described first display solicited message；And/or, receive institute
State select signal include: receive local user input described selection signal and/or, receive Telnet Telnet service
The described selection signal that device forwards.
Alternatively, after be switched to the process of described predetermined shell according to the execution of described selection signal, also include: connect
Receive the operation signal of local user's input, and/or, receive the operation signal that Telnet Telnet server forwards, its
In, described operation signal is for operating described predetermined shell；Described operation signal is forwarded to described predetermined shell
On；Receive the result returned after described predetermined shell processes according to described operation signal；Show described process
As a result, and/or, described result is sent to described Telnet server.
According to another aspect of the present invention, additionally provide a kind of shell processing method, including: receiving the second display please
Seeking information, wherein, described second display solicited message is used for asking to show shell list, and described shell list includes
Two or more shell；Described second display solicited message is transmitted to shell server；Receive described shell server to return
The described shell list returned；Receiving and select signal, wherein, described selection signal is for selecting from described shell list
The predetermined shell of hand-off process is performed for described shell server；Described selection signal is transmitted to described shell service
Device.
Alternatively, after described selection signal is transmitted to described shell server, also include: receive user's input
For operation signal that described predetermined shell is operated；Described operation signal is transmitted to described shell server,
Wherein, described operation signal is forwarded on described predetermined shell by described shell server；Receive described shell server
The result sent, wherein, described result is after described predetermined shell processes according to described operation signal
The result returned；Show described result.
According to a further aspect of the invention, additionally provide a kind of shell processing means, including: the first receiver module,
For receiving the first display solicited message；First display module, for according to described first display solicited message display shell
List, wherein, described shell list includes two or more shell；Second receiver module, is used for receiving selection signal,
Wherein, described selection signal is for selecting predetermined shell from described shell list；Handover module, for according to described
Signal is selected to perform to be switched to the process of described predetermined shell.
Alternatively, the first receiver module includes: receive with this landholder input described first show solicited message and/or,
Receive the described first display solicited message that Telnet Telnet server forwards；And/or, the second receiver module includes:
Receive local user input described selection signal and/or, receive Telnet Telnet server forward described selection
Signal.
Alternatively, described device also includes: the 3rd receiver module, for receiving the operation signal of local user's input, and
/ or, receive the operation signal that Telnet Telnet server forwards, wherein, described operation signal is for described pre-
Determine shell to operate；First forwarding module, for being forwarded to described predetermined shell by described operation signal；4th
Receiver module, for receiving the result returned after described predetermined shell processes according to described operation signal；The
Two display modules, are used for showing described result, and/or, described result is sent to described Telnet service
Device.
According to a further aspect of the invention, it is provided that a kind of shell processing means, including: the 5th receiver module, use
In receiving the second display solicited message, wherein, described second display solicited message is used for asking to show shell list, institute
State shell list and include two or more shell；Second forwarding module, for forwarding described second display solicited message
To shell server；6th receiver module, for receiving the described shell list that described shell server returns；7th
Receiver module, is used for receiving selection signal, and wherein, described selection signal is for selecting to be used for from described shell list
Described shell server performs the predetermined shell of hand-off process；3rd forwarding module, for forwarding described selection signal
To described shell server.
Alternatively, described device also includes: the 8th receiver module, for receive user input for described predetermined shell
Carry out the operation signal operated；4th forwarding module, for described operation signal is transmitted to described shell server,
Wherein, described operation signal is forwarded on described predetermined shell by described shell server；9th receiver module, is used for
Receiving the result that described shell server sends, wherein, described result is that described predetermined shell is according to described
The result that operation signal returns after processing；3rd display module, is used for showing described result.
By the present invention, use and receive the first display solicited message, according to these the first display solicited message display shell row
Table, wherein, shell list includes two or more shell, and receives selection signal, and wherein, this selection signal is used for
From shell list, select predetermined shell, perform to be switched to the mode of the process of predetermined shell further according to this selection signal,
Multiple shell can be shown in the form of a list, switch between multiple shell according to the demand of user, solve
When switching between multiple shell present in correlation technique, complexity is high, and switching efficiency is low, thus cause
The problem that user experience reduces, and then reduce complexity when switching between multiple shell, improve switching effect
Rate, and then improve the Experience Degree of user.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, the present invention
Schematic description and description be used for explaining the present invention, be not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the first shell processing method according to embodiments of the present invention；
Fig. 2 is the preferred flow charts of the first shell processing method according to embodiments of the present invention；
Fig. 3 is the flow chart of the second shell processing method according to embodiments of the present invention；
Fig. 4 is the preferred flow charts of the second shell processing method according to embodiments of the present invention；
Fig. 5 is the structured flowchart of the first shell processing means according to embodiments of the present invention；
Fig. 6 is the preferred structure block diagram of the first shell processing means according to embodiments of the present invention；
Fig. 7 is the structured flowchart of the second shell processing means according to embodiments of the present invention；
Fig. 8 is the preferred structure block diagram of the second shell processing means according to embodiments of the present invention；
Fig. 9 is the overall framework figure of shell server end according to embodiments of the present invention and client；
Figure 10 is shell server end according to embodiments of the present invention and the interaction diagrams of client；
Figure 11 is the registration information structure diagram of shell according to embodiments of the present invention；
Figure 12 is the operating process figure of principal and subordinate's pseudo terminal device in shell framework according to embodiments of the present invention；
Figure 13 is the operational flow diagram of serial ports daemon thread according to embodiments of the present invention；
Figure 14 is shell list information schematic diagram according to embodiments of the present invention；
Figure 15 is the flow chart of Telnet telnet to shell according to embodiments of the present invention；
Figure 16 is the operational flowchart of shell client according to embodiments of the present invention.
Detailed description of the invention
Below with reference to accompanying drawing and describe the present invention in detail in conjunction with the embodiments.It should be noted that in the feelings do not conflicted
Under condition, the embodiment in the application and the feature in embodiment can be mutually combined.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, " second "
Etc. being for distinguishing similar object, without being used for describing specific order or precedence.
Providing a kind of shell processing method in the present embodiment, Fig. 1 is the first shell according to embodiments of the present invention
The flow chart of processing method, as it is shown in figure 1, this flow process comprises the steps:
Step S102, receives the first display solicited message；
Step S104, according to this first display solicited message display shell list, wherein, shell list includes two
Above shell；
Step S106, receives and selects signal, and wherein, this selection signal is for selecting predetermined shell from shell list；
Step S108, performs to be switched to the process of above-mentioned predetermined shell according to this selection signal.
By above-mentioned steps, such that it is able to multiple shell are shown in the form of a list, exist according to the demand of user
Switch between multiple shell, solve when switching between multiple shell present in correlation technique, complexity
Height, switching efficiency is low, thus the problem that the user experience that causes reduces, and then reduces and carry out between multiple shell
Complexity during switching, raising switching efficiency, and then improve the Experience Degree of user, here, multiple shell can wrap
Include one or more OAM shell and multiple Debugging shell.
In an optional embodiment, step S102 receives the first display solicited message and may include that reception this locality
User input first display solicited message and/or, receive Telnet Telnet server forward first display request
Information.In step S106 receive select signal may include that receive local user input selection signal and/or, connect
Receive the selection signal that Telnet Telnet server forwards.In this optional embodiment, can receive and arise directly from
The idsplay order of local user's input, it is also possible to receive the user instruction forwarded from Telnet Telnet server, from
And both can realize the local switching controlled between multiple shell, can realize again remotely controlling cutting between multiple shell
Change, facilitate user to carry out local and remote exploitation and debugging.
Fig. 2 is the preferred flow charts of the first shell processing method according to embodiments of the present invention, as in figure 2 it is shown,
In this optional embodiment, above-mentioned shell processing method is except including that step S102 shown in Fig. 1 is to step S108
Outside, also include:
Step S202, receives the operation signal of local user's input, and/or, receive Telnet Telnet server and turn
The operation signal sent out, wherein, this operation signal is for operating predetermined shell；
Step S204, is forwarded to this operation signal on above-mentioned predetermined shell；
Step S206, receives the result returned after above-mentioned predetermined shell processes according to operation signal；
Step S208, shows this result, and/or, this result is sent to Telnet server.
Wherein, above-mentioned steps S202 to S208 can perform after step S108, by above-mentioned steps S202 to step
Rapid S208, so that the shell after switching is operated by user, user friendly Operation and Maintenance and exploitation debugging,
And when user needs to operate other shell, shell can be carried out by step S102 to step S108 again
Switching.
Above-mentioned shell processing method can be the description carried out from shell server side.
Fig. 3 is the flow chart of the second shell processing method according to embodiments of the present invention, as it is shown on figure 3, the method
Comprise the steps:
Step S302, receives the second display solicited message, and wherein, this second display solicited message is used for asking to show shell
List, this shell list includes two or more shell；
Step S304, is transmitted to shell server by this second display solicited message；
Step S306, receives the shell list that above-mentioned shell server returns；
Step S308, receives and selects signal, and wherein, this selection signal is for selecting for shell from shell list
Server performs the predetermined shell of hand-off process；
Step S310, is transmitted to shell server by selection signal.
Aforesaid operations can perform, by above-mentioned steps, by shell server on Telnet Telnet server
The shell list comprising multiple shell returned, such that it is able to remotely obtain multiple switchable shell, according to remotely using
The demand at family switches between multiple shell, solves and switches between multiple shell present in correlation technique
Time, complexity is high, and switching efficiency is low, thus the problem that the user experience caused reduces, and then reduce multiple shell
Between complexity when switching over, improve switching efficiency, and then improve the Experience Degree of user, here, multiple shell
One or more OAM shell and multiple Debugging shell can be included.
Fig. 4 is the preferred flow charts of the second shell processing method according to embodiments of the present invention, except including Fig. 3 institute
Step S302 shown is to outside step S310, further comprising the steps of:
Step S402, receives the operation signal being used for operating predetermined shell of user's input；
Step S404, is transmitted to shell server by this operation signal, and wherein, this operation signal is turned by shell server
It is dealt on predetermined shell；
Step S406, receives the result that shell server sends, wherein, this result be predetermined shell according to
The result that aforesaid operations signal returns after processing；
Step S408, shows this result.
Wherein, above-mentioned steps S402 to S408 can perform after step S310, by above-mentioned steps S402 to step
Rapid S408, so that the shell after switching is operated by Telnet clients, facilitates the operation of Telnet clients
Safeguard or exploitation debugging, and when Telnet clients needs to operate other shell, step can be passed through again
S302 carries out the switching of shell to step S310.
Through the above description of the embodiments, those skilled in the art is it can be understood that arrive according to above-described embodiment
Method can add the mode of required general hardware platform by software and realize, naturally it is also possible to by hardware, but a lot
In the case of the former is more preferably embodiment.Based on such understanding, technical scheme is the most in other words to existing
The part having technology to contribute can embody with the form of software product, and this computer software product is stored in one
In storage medium (such as ROM/RAM, magnetic disc, CD), including some instructions with so that a station terminal equipment (can
To be mobile phone, computer, server, or the network equipment etc.) perform the method described in each embodiment of the present invention.
Additionally providing shell processing means in the present embodiment, this device is used for realizing above-described embodiment and the side of being preferable to carry out
Formula, had carried out repeating no more of explanation.As used below, term " module " can realize predetermined function
Software and/or the combination of hardware.Although the device described by following example preferably realizes with software, but hardware,
Or the realization of the combination of software and hardware also may and be contemplated.
Fig. 5 is the structured flowchart of the first shell processing means according to embodiments of the present invention, as it is shown in figure 5, this dress
Put and include the first receiver module the 52, first display module the 54, second receiver module 56 and handover module 58, below to this
Device illustrates.
First receiver module 52, for receiving the first display solicited message；First display module 54, is connected to above-mentioned
One receiver module 52, for according to this first display solicited message display shell list, wherein, wrapping in shell list
Include two or more shell；Second receiver module 56, is connected to above-mentioned first display module 54, is used for receiving selection signal,
Wherein, this selection signal is for selecting predetermined shell from above-mentioned shell list；Handover module 58, is connected to above-mentioned
Two receiver modules 56, for performing to be switched to the process of predetermined shell according to this selection signal.
In another optional embodiment, the first receiver module 52 may include that and receives the first of local user's input
Display solicited message and/or, receive Telnet Telnet server forward first display solicited message；And/or, the
Two receiver modules 56 may include that receive local user input selection signal and/or, receive Telnet Telnet clothes
The selection signal that business device forwards.
Fig. 6 is the preferred structure block diagram of the first shell processing means according to embodiments of the present invention, as shown in Figure 6,
This device in addition to including the whole modules shown in Fig. 5, also include the 3rd receiver module the 62, first forwarding module 64,
4th receiver module 66 and the second display module 68, illustrates this device below.
3rd receiver module 62, is connected to above-mentioned handover module 58, for receiving the operation signal of local user's input,
And/or, receive the operation signal that Telnet Telnet server forwards, wherein, this operation signal is for predetermined shell
Operate；First forwarding module 64, is connected to above-mentioned 3rd receiver module 62, for being forwarded to by this operation signal
On predetermined shell；4th receiver module 66, is connected to above-mentioned first forwarding module 64, is used for receiving above-mentioned predetermined shell
The result returned after processing according to operation signal；Second display module 68, is connected to above-mentioned 4th receiver module
66, it is used for showing this result, and/or, this result is sent to Telnet server.
Above-mentioned shell processing means can be to be applied to shell server side.
Fig. 7 is the structured flowchart of the second shell processing means according to embodiments of the present invention, as it is shown in fig. 7, this dress
Put and include: the 5th receiver module the 72, second forwarding module 74, the 6th receiver module 76, the 7th receiver module 78 and
Three forwarding modules 710, illustrate this device below.
5th receiver module 72, for receiving the second display solicited message, wherein, this second display solicited message is used for please
Asking display shell list, this shell list includes two or more shell；Second forwarding module 74, is connected to above-mentioned
5th receiver module 72, for being transmitted to shell server by this second display solicited message；6th receiver module 76,
It is connected to above-mentioned second forwarding module 74, for receiving the shell list that shell server returns；7th receiver module
78, it is connected to above-mentioned 6th receiver module 76, is used for receiving selection signal, wherein, this selection signal is for from shell
List selects to perform for shell server the process of the predetermined shell of hand-off process；3rd forwarding module 710, even
It is connected to above-mentioned 7th receiver module 78, for this selection signal is transmitted to shell server.
Fig. 8 is the preferred structure block diagram of the second shell processing means according to embodiments of the present invention, as shown in Figure 8,
This device in addition to including all modules shown in Fig. 7, also include the 8th receiver module the 82, the 4th forwarding module 84,
9th receiver module 86 and the 3rd display module 88, illustrates this device below.
8th receiver module 82, is connected to above-mentioned 3rd forwarding module 710, for receive user's input for predetermined
Shell carries out the operation signal operated；4th forwarding module 84, is connected to above-mentioned 8th receiver module 82, and being used for should
Operation signal is transmitted to shell server, and wherein, this operation signal is forwarded on predetermined shell by shell server；The
Nine receiver modules 86, are connected to above-mentioned 4th forwarding module 84, for receiving the result that shell server sends,
Wherein, this result is the result returned after above-mentioned predetermined shell processes according to operation signal；3rd shows
Show module 88, be connected to above-mentioned 9th receiver module 86, be used for showing this result.
It should be noted that above-mentioned modules can be by software or hardware realizes, for the latter, Ke Yitong
Cross in the following manner to realize, but be not limited to this: above-mentioned module is respectively positioned in same processor；Or, above-mentioned module position respectively
In multiple processors.
Below in conjunction with concrete application scenarios, the present invention is illustrated.
In the present embodiment, it is therefore an objective to multiple shell unification and the method for switching, tool on a kind of same terminal session are provided
Body ground, same terminal session is divided into serial port terminal session and telnet terminal session.Use the side shown in the embodiment of the present invention
Method, it is possible to achieve each shell non-interference each other, function keeps independent, but can carry out between shell quickly
The effect of switching.
Generally speaking, in the present embodiment by the following technical solutions: shell server end process creation socket
And be tied on the 127.0.0.1 of local loopback address, this socket (namely can switch over as shell client
Each shell self) and the interactive controlling passage of server end, the switching of each shell client shows and a series of controls
System operation relies on the communication of the socket with server end.
Comprise the following steps:
A () shell server end process creation socket is also tied on the 127.0.0.1 of local loopback address, and create clothes
Business device end socket processes thread, and socket processes thread and intercepts and receive the connection of shell client, according to shell visitor
The message that family end sends, it is judged that the matching characteristic in message provides shell register flow path, shell cancel register stream respectively
Journey, display shell list flow process, switching shell flow process, Telnet shell logs in flow process, Telnet exits flow process and Telnet
Password testing process etc.；
B () shell server end process creation serial ports daemon thread, adapter/dev/console, serial ports daemon thread is intercepted
The input of all shell clients, the user of the most all shell clients inputs and is all guarded by the serial ports of shell server end
Thread captures；
C () shell server end serial ports daemon thread detection user switches the input of shell shortcut, if be detected that be to cut
Change the shortcut of shell, carry out shell display list and switching shell flow process the most immediately；
D the shortcut input of () shell server end serial ports daemon thread detection user's non-switching shell, will be currently entered
Being forwarded on current shell, after order is carried out dissection process by system, result carries out echo on/dev/console serial ports,
Show as exporting on current shell；
E () shell server end creates Telnet and processes thread, it is provided that the service of Telnet to shell；
F () each shell client, OAM shell and only exploitation commissioning staff that either product user uses make
Debugging shell, all pass through Connection Service device end create local socket, thus to server end process send
Shell registration request, shell received server-side to registration request, set for each shell client distribution principal and subordinate's pseudo-terminal
Standby/dev/pty and/dev/tty, and then the filec descriptor fd of distribution principal and subordinate's pseudo terminal device；
(g) each shell client by read (read), write (write) order read-write shell server end be them
The pseudo-terminal of distribution is from the fd of equipment, thus carries out input and output process and echo.
Illustrate to step (g) below for step (a).
In step (a), shell server end process must create system start-up early stage, and to the most late must be at each shell
Starting before client terminal start-up, socket processes thread loops and accepts the connection of shell client, calls reading by read
Take the descriptor being connected to client socket newly created on the 127.0.0.1 of local loopback address, it is thus achieved that shell client is sent out
The shell registration data structure sent here, according to the value of the cmd member of this data structure, socket processes thread and can distinguish
The various operations of shell are provided.
In step (b), serial ports daemon thread opens/dev/console equipment, returns filec descriptor fd, and serial ports guards line
Journey carries out read to this document descriptor fd and calls, and reads the character of user's input.
In step (c) and step (d), serial ports daemon thread detects for user inputs character.General user inputs
Character is divided into two kinds on attribute, and one is general character, and also having another is the control character that shell switches.Right
Inputting character in both, serial ports daemon thread can do different process: when the shortcut word being to switch shell being detected
Fu Shi, serial ports daemon thread can export shell list, allows user carry out selecting shell sequence number to be entered, then carries out
Shell switch, i.e. change serial ports daemon thread /dev/console read character routing direction.Such as, shell A
Being switched to shell B, the character that to be serial ports daemon thread read out/dev/console was forwarded to the puppet of shell A originally
Terminal main equipment filec descriptor fdA, the most then be forwarded on the pseudo-terminal main equipment filec descriptor fdB of shell B.
When the shortcut character of non-switching shell being detected, serial ports daemon thread directly forwards and is input to current shell client
On, and forward echo to serial port terminal/dev/console the output of current shell client.After other shell
Platform prints and selects output to serial port terminal/dev/console also dependent on developer, so can self-defined setting work as
Whether front shell has the output of other shell.
Step (e) can realize long-range telnet to each shell, common, the telnet of each shell dependent,
Shell user interface under telnet needs and keeps consistent under serial ports, the shell unification being i.e. capable of under long-range telnet
Switching and control.To this end, shell server end creates Telnetd daemon thread, realize the long-range of shell at designated port
Telnet, i.e. creates telnet server end socket in Telnetd daemon thread and is tied on designated port, telnet
Client is attached, and now distributes and open pseudo-terminal master-slave equipment for telnet user, and by serial ports daemon thread
Read fd from the fd of serial port terminal/dev/console change into Telnetd daemon thread be telnet client distribution pseudo-terminal from
Equipment fd, finally creates telnet input and the output task read-write operation for telnet end.
In step (f) and step (g), each shell client is on startup by being connected to this locality of shell server end
Socket, and send registration message to server end, shell server end is suitable according to the transmission of the registration message of each shell
Sequence is sequentially allocated principal and subordinate's pseudo terminal device to each shell, and shell client obtains the pseudo-terminal fd from equipment.Because clothes
The read-write of main equipment can be reflected from equipment by business device end, so total input thread of shell client is adjusted by read
With reading from equipment fd, just can obtain the serial ports input data of server end adapter, then carry out dissection process, finally return
Return result to be printed upon in current shell terminal (serial ports or telnet).
Generally speaking, shell server end and shell client are shell switching and the two big main bodys controlled, and shell services
Device end only one of which, and shell client is determined by the shell quantity in system, a concrete shell is i.e. one
Shell client, this is the structure of typical one-to-many.
Communication and the message against the two main body module that realizes of the embodiment of the present invention sends, and wherein step (a) arrives
Step (d) is in order to realize the flow process of shell server end, and step (f) completes shell client to step (g)
Operation.The management of shell server end controls each shell, takes over the input and output of all shell, and input is turned
Being dealt on current shell, each shell client enters the input of oneself after server end obtains input and resolves output stream
Journey, is finally forwarded to shell server end again by output, server end determine to export serial port terminal or telnet
Conversational terminal.This C/S design greatly reduce shell dispose complexity, in system can with the multiple shell of layout,
Each shell distinguished by the node structure of the data compositions such as shell server end sequence number and pseudo-terminal, phase between each shell
The most transparent, they are not aware that the existence of other shell of system, and the switching of shell is interacted control by server end,
This interference that also greatly reducing information between shell and the design complexities of concrete shell.
Step (e) then enhances the occasion that shell uses, and need not be in the action time breaking down in front, only need to remotely arrive
Failure environment gather information is analyzed.
In sum, the embodiment of the present invention can be the most easily between each shell, and shell in deployment system
Switching is simple, and remote adjusting functid can also reduce the debugging cost of exploitation commissioning staff.The exploitation debugging making system becomes
Very convenient.
Fig. 9 is the overall framework figure of shell server end according to embodiments of the present invention and client, as it is shown in figure 9,
This frame diagram includes a shell server end and 3 shell customer end A, B, C, by the input shown in Fig. 9
With outbound course, shell server end is used for processing the control switching of shell and the forwarding of character input and output, shell
Client then reads the character that shell server end is forwarded on this shell pseudo-terminal, and resolves letter by the shell of oneself
Number processes.Finally enter oneself function or order flow process, output results on the pseudo-terminal of this shell, shell
Server end judges current active terminal, if serial ports, then character can be write further/dev/console serial ports sets
Standby upper, if telnet conversational terminal, then system of writing is on the pseudo-terminal of telnet session distribution.
Based on the shell server end shown in Fig. 9 and the overall framework figure of client, Figure 10 is according to embodiments of the present invention
Shell server end and the interaction diagrams of client, constitute at the shell server end of the present embodiment and client
In system, shell server end and client are the structures of the one-to-many of typical C/S, shell server end and client
End has oneself interaction a set of, and as shown in Figure 10, this flow process includes:
Step S1002, shell server end holds socket, binding by socket function creation server (server)
On local loopback address, wait the connection of shell client, after shell client terminal start-up, immediately to shell server
End sends registration request.
Figure 11 is the registration information structure diagram of shell according to embodiments of the present invention, as shown in figure 11, registration form
Information comprises the port numbers (pid) of shell registration thread, and shell controls option (Shoptions), and shell client is to shell
Server end or shell server end ask number (cmd) to the specific instructions of shell client, shell name (sh_name)
With the pseudo-terminal that server end is shell distribution from implementor name (pty_name).Wherein, shell's for convenience is self-defined
Arrange, it is possible to use shell controls option and shell carries out the management of other functions, for example whether need at current shell
Output of upper other shell of display etc..Command request number is then one group of enumerated variable, such as REGSH,
ASSIGNFD、RETRY、SHLIST、SWSH.Shell server end and client all can determine whether what the other side sent
Different command is asked thus is performed different operations, it is achieved whole shell control flow.In the step 1 shown in Figure 10)
In, shell client sends registration request, as long as command request number is set to log-in command REGSH.
Step S1004, shell server side detects the command number in the register information structure that shell client is sent
When being log-in command, jump into immediately in the function of registration shell, and open pseudo terminal device for the distribution of shell client,
Putting cmd command number is ASSIGNFD, and then messaging is to shell client, after shell client receives message, and inspection
Measure after cmd command number is ASSIGNFD, then open the pseudo-terminal in shell registration form message structure from implementor name,
Return fd.
Step S1006, reads the character of input under shell, is forwarded on shell pseudo-terminal main equipment.
Step S1008, shell client type B error terminal character, then dissection process from equipment fd, return result,
Result is write on the pseudo-terminal pointed by fd.
In step S1004 to step S1008, in system, the input and output of shell be unable to do without the operation of pseudo-terminal, figure
12 is the operating process figure of principal and subordinate's pseudo terminal device in shell framework according to embodiments of the present invention, as shown in figure 12, pty
Pseudo-terminal (Pseudo Terminal) be paired logical terminal (LTERM) equipment (i.e. lead (master) equipment and from (slave) equipment, right
The operation of master can reflect on slave), such as/dev/ptyy1 and/dev/ttyy1, they are exactly that one group of pseudo-terminal sets
Standby.Wherein/dev/ptyy1 is main equipment, and/dev/ttyy1 is then corresponding from equipment.If a program is ptyy1
(master equipment) regards a serial port apparatus as, then it can be reflected in this logical terminal (LTERM) to the read/write operation of this port
Another ttyy1 (slave equipment) that equipment is corresponding is above.Ttyy1 is then another program logic for read-write operation
Equipment.So, two programs just can carry out mutual cross streams by this logical device, and uses the program of ttyy1
Then thinking that oneself communicates with a serial port, shell server end and shell client are namely based on so
Principle carry out the input and output of shell and switching control, the character that user inputs is write puppet by shell server end
On terminal main equipment, such shell client reads pseudo-terminal just can read this character, when shell client from equipment
During output character, then character being write pseudo-terminal from equipment, corresponding character also can be written on main equipment.
The core operation of shell server end is on serial ports daemon thread, and Figure 13 is that serial ports according to embodiments of the present invention is kept
Protecting the operational flow diagram of thread, as shown in figure 13, this flow process includes:
Step S1302, serial ports daemon thread is opened console terminal equipment/dev/console, is returned filec descriptor
Fd_tty_console, then arranges serial port terminal attribute, and the special quick bond energy allowing serial ports switch the most normally is captured；
Step S1304, creates the daemon thread of console to current_fd_to_console bearing data passage, i.e.
Console_daemon thread, console_daemon thread mainly completes the capture reading of character and sentencing of switching cipher
Disconnected；
Step S1306, in console_daemon thread, first passes through read function and reads fd_console literary composition
Part descriptor, this descriptor is set to fd_tty_console when serial ports is active terminal, and when telnet session is movable
During terminal, it is set to the filec descriptor that the pseudo-terminal that telnet session opens returns from equipment, the most either under serial ports
Character, or the input in telnet session can normally be read；
Step S1308, console_daemon thread proceeds by judgement and the parsing of shell switching cipher；
Step S1310, when detect be switching cipher or shortcut time, now movable registered of output current system
Shell list, Figure 14 is shell list information schematic diagram according to embodiments of the present invention, as shown in figure 14, its bag
Containing shell version number (shell_version), the call number (index) of each shell, pseudo-terminal name (ptys) and shell
Name (name)；
Step S1312, after exhalation shell list menu, now requires that user inputs the call number of target shell；
Step S1314, after user inputs call number, it is judged that the shell sequence number of the call number of user's input, obtains according to sequence number
Obtain shell nodal information concrete in shell node chained list；
Step S1316, console_daemon thread finds the pseudo-terminal main equipment of target shell, will
Current_fd_to_console is entered as the filec descriptor of the pseudo-terminal main equipment of target shell, then user is inputted
Information writes on the pseudo-terminal that current_fd_to_console points to, and on i.e. current pseudo-terminal, performs handover operation；
Step S1318, if be detected that if being general character, then directly write on input information on current pseudo-terminal；
Step S1320, in addition to console_daemon thread, serial ports daemon thread also can be by registered all shell
Fd join set and concentrate, then wait that event on each shell occurs, if there being output needs on current shell
Print, then serial ports daemon thread can by (serial ports or telnet terminal) in its echo to the terminal pointed by fd_console,
If not current shell, then control whether option Shoptions is shown to other by the printing of this shell according to shell
On shell；
Step S1322, also can process shell is abnormal in serial ports daemon thread, abnormal when there being shell node to occur
Time, such as shell registration procedure is abnormal closes, and serial ports thread can be by current shell knot removal；
Step S1324, serial ports daemon thread also reads other shell node character and output is controlled.
Additionally, in addition to local shell server end is for controls such as multiple shell switch over, Figure 15 is according to this
The flow chart of Telnet telnet to the shell of inventive embodiments, as shown in figure 15, this flow chart includes that Telnet keeps
Protect thread, Telnet input thread and Telnet and export thread, below each thread is specifically described.
Telnetd daemon thread include step S1502 to step S1512, particularly as follows:
Step S1502, shell server end can create Telnet server end socket when initializing and be tied to designated port
And accepting telnet session connection, the most newly-built telnetd daemon thread, this thread is used for receiving and process long-range telnet's
Connect；
Step S1504, when having detected that remote session connects, for safety, long-distance user needs to input password and steps on
Enter, and user cipher is judged；
Step S1506, the most whether, after user inputs proper password, daemon thread can conversate control, i.e. judge
The remote session having other connects, if currently there being the remote session of activity, does not the most allow new remote session to login；
Step S1508, after session is allowed to login, telnetd daemon thread is that session distributes principal and subordinate's pseudo terminal device；
Step S1510, is set to the pseudo-terminal of telnet session by the reading fd_console in console_daemon thread
From the fd of equipment, thus console_daemon thread is become reading the defeated of telnet session from the input originally reading serial ports
Enter；
Step S1512, controls for the input and output ensureing telnet session, and telnetd daemon thread further creates telnet
Input thread (tTelnetInTask) and output thread (tTelnetOutTask).
Telnet input thread include step S1514 to step S1518, particularly as follows:
Step S1514, joins the socket fd of telnet session set and concentrates and to call select function etc. to be entered；
Step S1516, reads and processes long-range telnet session input；
Step S1518, when 5 minutes inertias of telnet session being detected, is not detected by input for i.e. 5 minutes, this
Time the telnet incoming task socket that can close telnet session and the pseudo-terminal opened, be then log out.
Telnet output thread include step S1520 to step S1522, particularly as follows:
Step S1520, reads input character (buf) from the pseudo-terminal master-slave equipment fd of telnet；
Step S1522, is shown to the character that telnet user inputs in current telnet session.
Figure 13 and Figure 15 is the process description for shell server end, and Figure 16 is shell according to embodiments of the present invention
The operational flowchart of client, as shown in figure 16, this flow process includes:
Step S1602, shell client sends registration request when initializing to shell server end；
Step S1604, (assign file descriptor is referred to as the distribution filec descriptor of wait shell server end
Assign_fd) response；
Step S1606, after shell server end receives registration request, opens pseudo-terminal to shell distribution, returns after opening
Back into file descriptor, and send distribution filec descriptor order to shell client；
Step S1608, shell client receives this order, start to be redirected to this document descriptor standard input and
Output；
Step S1610, total input thread of shell client reads the character on this document descriptor, then by shell
The analytical function of oneself resolves；
Step S1612, the execution result of the order that character is formed by shell writes on the pseudo-terminal that this document descriptor points to.
In sum, apply the embodiment of the present invention, can light each shell in layout system, each shell is same
Showing in terminal, display does not interfere with each other, and shell switching is also simple, and is capable of long-range telnet to each of system
Shell, the above debug time greatly reducing the system failure, improves the efficiency of exploitation tester.
Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can
To be arranged to storage for the program code performing following steps:
S1, receives the first display solicited message；
S2, according to this first display solicited message display shell list, wherein, shell list includes two or more shell；
S3, receives and selects signal, and wherein, this selection signal is for selecting predetermined shell from shell list；
S4, performs to be switched to the process of above-mentioned predetermined shell according to this selection signal.
In the present embodiment, above-mentioned storage medium may be also configured to storage for the program code performing following steps:
S1, receives the second display solicited message, and wherein, this second display solicited message is used for asking to show shell list,
This shell list includes two or more shell；
S2, is transmitted to shell server by this second display solicited message；
S3, receives the shell list that above-mentioned shell server returns；
S4, receives and selects signal, and wherein, this selection signal is held for shell server for selection from shell list
The predetermined shell of row hand-off process；
S5, is transmitted to shell server by selection signal.
Alternatively, in above-described embodiment, above-mentioned storage medium can include but not limited to: USB flash disk, read only memory
(Random Access Memory is called for short for (Read-Only Memory, referred to as ROM), random access memory
For RAM), portable hard drive, the various media that can store program code such as magnetic disc or CD.
Alternatively, the concrete example in the present embodiment is referred to showing described in above-described embodiment and optional embodiment
Example, the present embodiment does not repeats them here.
Obviously, those skilled in the art should be understood that each module of the above-mentioned present invention or each step can be with general
Calculating device to realize, they can concentrate on single calculating device, or be distributed in multiple calculating device and formed
Network on, alternatively, they can realize, it is thus possible to by them with calculating the executable program code of device
Storage is performed by calculating device in the storage device, and in some cases, can hold with the order being different from herein
Step shown or described by row, or they are fabricated to respectively each integrated circuit modules, or by many in them
Individual module or step are fabricated to single integrated circuit module and realize.So, the present invention is not restricted to any specific hardware
Combine with software.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the technology of this area
For personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made is any
Amendment, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a shell processing method, it is characterised in that including:
Receive the first display solicited message；
According to described first display solicited message display shell list, wherein, described shell list includes two
Above shell；
Receiving and select signal, wherein, described selection signal is for selecting predetermined shell from described shell list；
Perform to be switched to the process of described predetermined shell according to described selection signal.
Method the most according to claim 1, it is characterised in that:
Receive described first display solicited message to include: receive the described first display solicited message of local user's input
And/or, receive the described first display solicited message that Telnet Telnet server forwards；And/or,
Receive described selection signal to include: receive local user's input described selection signal and/or, receive remotely
Log in the described selection signal that Telnet server forwards.
Method the most according to claim 1, it is characterised in that be switched to described pre-according to the execution of described selection signal
After determining the process of shell, also include:
Receive the operation signal of local user's input, and/or, receive the behaviour that Telnet Telnet server forwards
Making signal, wherein, described operation signal is for operating described predetermined shell；
Described operation signal is forwarded on described predetermined shell；
Receive the result returned after described predetermined shell processes according to described operation signal；
Show described result, and/or, described result is sent to described Telnet server.
4. a shell processing method, it is characterised in that including:
Receiving the second display solicited message, wherein, described second display solicited message is used for asking to show shell row
Table, described shell list includes two or more shell；
Described second display solicited message is transmitted to shell server；
Receive the described shell list that described shell server returns；
Receiving and select signal, wherein, described selection signal is for selecting for described shell from described shell list
Server performs the predetermined shell of hand-off process；
Described selection signal is transmitted to described shell server.
Method the most according to claim 4, it is characterised in that described selection signal is being transmitted to described shell clothes
After business device, also include:
Receive the operation signal being used for described predetermined shell is operated of user's input；
Described operation signal is transmitted to described shell server, and wherein, described operation signal is taken by described shell
Business device is forwarded on described predetermined shell；
Receiving the result that described shell server sends, wherein, described result is described predetermined shell
The result returned after processing according to described operation signal；
Show described result.
6. a shell processing means, it is characterised in that including:
First receiver module, for receiving the first display solicited message；
First display module, for according to described first display solicited message display shell list, wherein, described
Shell list includes two or more shell；
Second receiver module, is used for receiving selection signal, and wherein, described selection signal is for arranging from described shell
Table selects predetermined shell；
Handover module, for performing to be switched to the process of described predetermined shell according to described selection signal.
Device the most according to claim 6, it is characterised in that:
First receiver module includes: receive with this landholder input described first display solicited message and/or, reception
The described first display solicited message that Telnet Telnet server forwards；And/or,
Second receiver module includes: receive local user input described selection signal and/or, receive Telnet
The described selection signal that Telnet server forwards.
Device the most according to claim 6, it is characterised in that described device also includes:
3rd receiver module, for receiving the operation signal of local user's input, and/or, receive Telnet Telnet
The operation signal that server forwards, wherein, described operation signal is for operating described predetermined shell；
First forwarding module, for being forwarded to described predetermined shell by described operation signal；
4th receiver module, for receiving return after described predetermined shell processes according to described operation signal
Result；
Second display module, is used for showing described result, and/or, described result is sent to described
Telnet server.
9. a shell processing means, it is characterised in that including:
5th receiver module, for receiving the second display solicited message, wherein, described second display solicited message is used
In request display shell list, described shell list includes two or more shell；
Second forwarding module, for being transmitted to shell server by described second display solicited message；
6th receiver module, for receiving the described shell list that described shell server returns；
7th receiver module, is used for receiving selection signal, and wherein, described selection signal is for arranging from described shell
Table selects to perform for described shell server the predetermined shell of hand-off process；
3rd forwarding module, for being transmitted to described shell server by described selection signal.
Device the most according to claim 9, it is characterised in that described device also includes:
8th receiver module, for receiving believing for the operation operating described predetermined shell of user's input
Number；
4th forwarding module, for being transmitted to described shell server, wherein, described behaviour by described operation signal
Make signal to be forwarded on described predetermined shell by described shell server；
9th receiver module, for receiving the result that described shell server sends, wherein, described process
Result is the result returned after described predetermined shell processes according to described operation signal；
3rd display module, is used for showing described result.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510349477.5A CN106325982A (en) | 2015-06-23 | 2015-06-23 | shell processing method and device |
| PCT/CN2016/086749 WO2016206587A1 (en) | 2015-06-23 | 2016-06-22 | Shell processing method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510349477.5A CN106325982A (en) | 2015-06-23 | 2015-06-23 | shell processing method and device |
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| CN106325982A true CN106325982A (en) | 2017-01-11 |
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| CN201510349477.5A Withdrawn CN106325982A (en) | 2015-06-23 | 2015-06-23 | shell processing method and device |
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| WO (1) | WO2016206587A1 (en) |
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| CN108810124A (en) * | 2018-06-02 | 2018-11-13 | 上海清鹤科技股份有限公司 | The remote access control system of a large amount of multimedia terminals under a kind of environment to public network |
| WO2020114217A1 (en) * | 2018-12-05 | 2020-06-11 | 中兴通讯股份有限公司 | Process debugging method and apparatus, and storage medium |
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| US20060129991A1 (en) * | 2004-12-13 | 2006-06-15 | Frank Kilian | Method and system for on-the-fly debugging |
| CN101937369A (en) * | 2009-06-30 | 2011-01-05 | 中兴通讯股份有限公司 | Method and system for leading multiple shells to share console |
| CN103472977A (en) * | 2013-09-24 | 2013-12-25 | 北京奇虎科技有限公司 | Method and device for activating next label page when label page is closed |
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| WO2016206587A1 (en) | 2016-12-29 |
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Application publication date: 20170111 |