CN106375163B - The high speed PPP implementation method of wireless data card on a kind of linux system - Google Patents
The high speed PPP implementation method of wireless data card on a kind of linux system Download PDFInfo
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- CN106375163B CN106375163B CN201610750417.9A CN201610750417A CN106375163B CN 106375163 B CN106375163 B CN 106375163B CN 201610750417 A CN201610750417 A CN 201610750417A CN 106375163 B CN106375163 B CN 106375163B
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- message
- ppp
- data card
- escape
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2854—Wide area networks, e.g. public data networks
- H04L12/2856—Access arrangements, e.g. Internet access
- H04L12/2858—Access network architectures
- H04L12/2859—Point-to-point connection between the data network and the subscribers
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
Abstract
The present invention relates to data communication fields, and in particular to the high speed PPP implementation method of wireless data card on to a kind of linux system.The PPP rate that dials up on the telephone is low at present.In scheme provided by the invention, the Modem interface creation character device of wireless module is used to dial and hang up, the creation network equipment is used for Message processing；Guarantee that only one device drives of synchronization can access practical Modem interface by mutual exclusion mechanism.From the PPP message that the practical message received and dispatched of Modem interface is after escape, network interface needs identification and extraction original message, removal escape, verification FCS, Ethernet header to calculate and encapsulate after receiving PPP message；It parses and removes Ethernet header, calculating when sending message and add FCS, character escape.Due to having used the network interface model of kernel, send and receive packets performance is substantially improved, since driving completes almost all of Message processing work, user program is simplified, and the character device isolated is used alone as dialling and hanging up so that user program processing is more convenient.
Description
Technical field
The present invention relates to data communication fields, specifically, are related to a kind of high speed of wireless data card on linux system
PPP implementation method.
Background technique
3G technology epoch, data card module online mainly based on PPP dial mode, also have a set of on linux system
Total solution supports PPP to dial up on the telephone, and the driving of kernel state relevant programme mainly includes tty serial port drive, usb string
Mouth driving.Serial ports inherently low-speed device, also low-speed device drives tty serial port drive, and usb serial port drive is also to be
Low-speed USB devices and design, it is often all very low to be limited to the rate that dials up on the telephone of PPP in the constraint practical application of implementation, leads to
Often it can only achieve within 2Mbps.
In the 3G technology epoch, the bandwidth that wireless side is capable of providing is inherently than relatively limited, so the low performance of integration scenario
Design is not so obvious for PPP dialing overall performance impact.With the arrival of 4G technology, wireless bandwidth theoretical value can
Reach 50Mbps/100Mbps, the driving model of low speed design can no longer meet the requirement of high speed bandwidth.So current 4G
Module generally can all be presented a network device interface and do Ethernet message interaction with host computer side, and host computer side is set by special network
Standby driving and module communication, fully meet current 4G wireless bandwidth by the bandwidth of test network driving model.
But in practical applications, the PPP mode that dials up on the telephone still is widely used, in PPP dialing solution originally
The low speed design of driving layer seriously limits speed of surfing the Internet, and the present invention proposes that new method is used to solve the problems, such as this.
Attached drawing 1 show current data card PPP and dials up on the telephone scheme schematic diagram, and process is as follows:
1. kernel identification Modem interface simultaneously creates corresponding character device
2. user program is dialled by character device implementing reading and writing
3. user program, which is opened to receive, waits for thread, is recycled by N-free diet method and read character device reception message
4. needing to do message identification, message extraction, PPP escape, PPP verification after receiving message
5. passing through write characters equipment when having and giving out a contract for a project sends message
Under above-mentioned original PPP mode, a Modem interface is presented to system side in module, and drive module is only responsible for creation
Corresponding character device out, user program need to complete dialing, package, give out a contract for a project, recycle packet receiving, decapsulation message, exception message
Many and diverse operation such as handle, hang up, the realization of user program is often relative complex, due to using serial ports char device driver, receives
Send out message rate and efficiency it is all very low under.
Summary of the invention
The purpose of the present invention is to provide a kind of high speed PPP implementation method of wireless data card on linux system, this method
The uplink and downlink rate that wireless module PPP dials up on the telephone can be substantially improved.
In order to achieve the above-mentioned object of the invention, technical solution of the present invention has the following steps:
(1) character device and the network equipment are created simultaneously for the Modem interface of wireless module；
(2) operation passes through semaphore or lock mechanism mutual exclusion between character device read-write and network interface transmitting-receiving message；
(3) operation is dialled and hung up by character device implementing reading and writing；
(4) packet sending and receiving processing is carried out by the network equipment；
(5) network send and receive packets process realizes PPP Message processing.
In scheme provided by the invention, for the Modem interface of wireless module, character device is created for dialling and hanging
Disconnected, the creation network equipment is used for Message processing；Guarantee that only one device drives of synchronization can access reality by mutual exclusion mechanism
Border Modem interface.Due to being the PPP message after escape from the practical message received and dispatched of Modem interface, so network interface receives
Need to identify and extract original message, removal escape, verification FCS, Ethernet header calculating and encapsulation after PPP message, when sending message
It needs to parse and remove Ethernet header, calculating and adds FCS, character escape.Under new scheme, due to having used the network of kernel to connect
Mouth mold type, send and receive packets performance are substantially improved, and since driving completes almost all of Message processing work, so that user's journey
Sequence is more simplified, and the character device isolated is used alone as dialling and hanging up but also user program processing is more convenient.
The technical effects of the invention are that:
(1) realize that data card high speed PPP dials up on the telephone；
(2) driving is directly realized by the transmitting-receiving process of PPP message, simplifies using design；
(3) dialing is separated with packet sending and receiving process, simplifies application design.
Detailed description of the invention:
Fig. 1 is that current data card PPP dials up on the telephone scheme schematic diagram；
Fig. 2 is that data card PPP dials up on the telephone scheme schematic diagram in the present invention；
Fig. 3 is that network-driven handles Modem interface transmitting-receiving message flow chart in the present invention.
Specific embodiment:
The high speed PPP implementation method of wireless data card on a kind of linux system of the present invention is said with reference to the accompanying drawing
It is bright.
Attached drawing 2 show data card PPP in the present invention and dials up on the telephone scheme schematic diagram, and operating procedure is as follows:
1. kernel identification Modem interface simultaneously creates corresponding character device and the network equipment；
2. user program is dialled by character device implementing reading and writing；
3. user program creation socket simultaneously monitors waiting network interface packet receiving；
4. passing through socket send when having and giving out a contract for a project sends message；
5. network interface transmitting-receiving message can directly walk kernel forwarding.
Attached drawing 3 show network-driven processing Modem interface transmitting-receiving message process in the present invention:
Sending direction: PPP message is calculated and is encapsulated, after PPP escape character escape by ether header parsing and removing, FCS
It is sent to data card side；
Receiving direction: data card flank the data that receive identify and extract by PPP message, release escape, FCS verification,
Ethernet header calculates and addition re-sends to packet receiving queue or the forwarding of direct kernel.
Finally, it is stated that: the embodiment of above only technical method of the invention to exemplary illustration, rather than it is limited
System；Although the present invention and the effective effect of bring of the present invention are described in detail with reference to the foregoing embodiments, this field it is general
Logical technical staff is it is understood that it can still modify to technical method documented by aforementioned each embodiment or right
Part of technical characteristic is replaced on an equal basis；And these modifications or substitutions, so that the essence of relevant art method is detached from this
Invention the scope of the claims.
Claims (1)
1. the high speed PPP implementation method of wireless data card on a kind of linux system, it is characterised in that comprise the steps of:
(1) character device and the network equipment are created simultaneously for the Modem interface of wireless module；
(2) operation passes through semaphore or lock mechanism mutual exclusion between character device read-write and network interface transmitting-receiving message；
(3) operation is dialled and hung up by character device implementing reading and writing；
(4) packet sending and receiving processing is carried out by the network equipment；
(5) network send and receive packets process realizes PPP Message processing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610750417.9A CN106375163B (en) | 2016-08-29 | 2016-08-29 | The high speed PPP implementation method of wireless data card on a kind of linux system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610750417.9A CN106375163B (en) | 2016-08-29 | 2016-08-29 | The high speed PPP implementation method of wireless data card on a kind of linux system |
Publications (2)
| Publication Number | Publication Date |
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| CN106375163A CN106375163A (en) | 2017-02-01 |
| CN106375163B true CN106375163B (en) | 2019-04-12 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201315596Y (en) * | 2008-12-22 | 2009-09-23 | 珠海市鸿瑞软件技术有限公司 | Dial safety gateway device |
| CN102222207A (en) * | 2011-05-23 | 2011-10-19 | 深圳市共进电子有限公司 | Method for realizing networking by switching 3G data card working modes in Linux system |
| CN102411546A (en) * | 2011-10-18 | 2012-04-11 | 深圳市共进电子股份有限公司 | Method for implementing connected communication of 3G data cards in at least two operation modes |
| CN102612053A (en) * | 2012-02-24 | 2012-07-25 | 深圳市高视数字技术有限公司 | Method and system for realizing multi-card dialing by automatically detecting USB modem network mode |
| CN104899028A (en) * | 2015-05-27 | 2015-09-09 | 北京汉柏科技有限公司 | Method and system for operating 3G(3rd generation)-USB network card in user mode based on Linux kernel |
-
2016
- 2016-08-29 CN CN201610750417.9A patent/CN106375163B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201315596Y (en) * | 2008-12-22 | 2009-09-23 | 珠海市鸿瑞软件技术有限公司 | Dial safety gateway device |
| CN102222207A (en) * | 2011-05-23 | 2011-10-19 | 深圳市共进电子有限公司 | Method for realizing networking by switching 3G data card working modes in Linux system |
| CN102411546A (en) * | 2011-10-18 | 2012-04-11 | 深圳市共进电子股份有限公司 | Method for implementing connected communication of 3G data cards in at least two operation modes |
| CN102612053A (en) * | 2012-02-24 | 2012-07-25 | 深圳市高视数字技术有限公司 | Method and system for realizing multi-card dialing by automatically detecting USB modem network mode |
| CN104899028A (en) * | 2015-05-27 | 2015-09-09 | 北京汉柏科技有限公司 | Method and system for operating 3G(3rd generation)-USB network card in user mode based on Linux kernel |
Non-Patent Citations (2)
| Title |
|---|
| MODEM的拨号配置;裘迅;《苏州职业大学学报》;20021231(第4期);全文 |
| PPP拨号上网的协议解析;裘迅;《苏州职业大学学报》;20030530;第14卷(第2期);全文 |
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| CN106375163A (en) | 2017-02-01 |
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