CN107204916A - Mail restoring method based on Tilera multinuclear board network packets - Google Patents
Mail restoring method based on Tilera multinuclear board network packets Download PDFInfo
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- CN107204916A CN107204916A CN201710475114.5A CN201710475114A CN107204916A CN 107204916 A CN107204916 A CN 107204916A CN 201710475114 A CN201710475114 A CN 201710475114A CN 107204916 A CN107204916 A CN 107204916A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
- H04L51/42—Mailbox-related aspects, e.g. synchronisation of mailboxes
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Abstract
The invention provides a kind of mail restoring method based on Tilera multinuclear board network packets, it is characterised in that comprises the following steps：Need to dispose development environment before S1, mail reduction, include the connection of Tilera multinuclears board and cabinet hardware, and software systems installation；After S2, development environment deployment, mail reduction is carried out, Tilera multinuclears board is primarily based on and carries out initial configuration, starts the hardware resource used and calls packet receiving interface to carry out packet receiving；S3, the packet received transmitted to TCP flow recombination module；S4, enter different mail recovery modules finally according to port classifications and carry out mail restoring operations.Mail restoring method energy highest of the present invention based on Tilera multinuclear board network packets realizes the 36 core parallel processing mails reduction output eml files of 10GE network packet flows, and the mail restoring function of 163 mailboxes in compatibility pop3, stmp, imap and webmail, can many mail protocol business of parallel processing or the single mail protocol business of independent processing.
Description
Technical field
The invention belongs to email correspondence field, Tilera multinuclear board network packets are based on more particularly, to one kind
Mail restoring method.
Background technology
At present, the technology that mail reduction is carried out to network packet realizes have and increased income by pfring or libpcap etc.
Packet receiving storehouse carries out network packet acquisition, and the two ways is reached after hardware view in the efficiency for obtaining bag due to there are data
Repeatedly copied by internal memory and cause cpu resource overhead burden；Also have by polycaryon processor to carry out packet receiving, but the check figure of multinuclear
The rarer index for reaching 100 cores in Tilera products, equipment plate card form also it is less reach that Tilera is the same can be by PCI-E
Slot small volume and less weight is installed.And mail retrieving algorithm have by storehouse libnids interfaces of increasing income also have oneself design realize.
The content of the invention
In view of this, the present invention is directed to propose a kind of mail reduction side based on Tilera multinuclear board network packets
Method, not enough to solve network data packet capturing performance in existing network packet mail reduction technique, retrieving algorithm operation is flat
The less situation for reaching multi-core parallel concurrent of platform.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
Based on the mail restoring method of Tilera multinuclear board network packets, comprise the following steps：
Need to dispose development environment before S1, mail reduction, include the company of Tilera multinuclears board and cabinet hardware
Connect, and software systems installation；
After S2, development environment deployment, mail reduction is carried out, Tilera multinuclears board is primarily based on and carries out initial configuration,
Start the hardware resource used and call packet receiving interface to carry out packet receiving；
S3, by the packet received carry out TCP flow recombination module；
S4, enter different mail recovery modules finally according to port classifications and carry out mail restoring operations.
Further, development environment is disposed in the step S1, and specific method is as follows：
S101, by Tilera multinuclears board insert Portable integral machine cabinet PCIE slots on, fix multinuclear board
Afterwards, one of multinuclear board or not more than four optical ports are attached by optical module and optical fiber, network data flow passes through light
Fibre enters the optical port formation data path of multinuclear board；
S102, the liunx operating systems for installing centos6.5 on computers, and Tilera development environment versions are installed
MDE4.3.3；
S103, sign in by Tilera log on command tile-monitor liunx systems inside Tilera boards
Unite, in the present context development deployment mail reducing program code.
Further, in the step S1, after the development environment deployment, when being debugged to serial ports, by multinuclear board
AccessPort mouthful be connected to by debugging line on the usb mouths of computer, AccessPort is signed in by tile-console orders
Output end.
Further, in the step S2, the method for the Tilera multinuclears board initialization and packet receiving interface, specifically such as
Under：
S201, by receiving user's arrange parameter corresponding configuration and initiating hardware resource are carried out, give multinuclear board to carry out
Memory Allocation；
S202, TCP flow recombination module is initialized and call back function registration；
S203, call mPIPE high speed packet receiving interfaces, the packet receiving of peek modes carries out the access of network packet.
Further, the execution method of the TCP flow recombination module, specific as follows：
S301, nids_next_special_mpipe function handle packet receiving data；
S302, registered callbacks function pointer chained list recursive call；
S303, Process_tcp carry out TCP restructuring；
Enter the classification judgement that call back function carries out mail protocol after the completion of S304, TCP restructuring, difference is entered into according to port
Mail recovery module in.
Further, mail recovery module includes pop3 mails recovery module, stmp mails also grand master pattern in the step S4
Block, imap mails recovery module, http mail recovery modules.
Further, the pop3 mails recovery module, specific execution method is as follows：
S401, the feature for meeting pop3 mail protocols, function entrance is reduced into pop3 mails；
S402, judge whether it is client data, it is 1 that if it is Mail Contents, which obtain flag bit,；If not then sentencing
Whether disconnected protocol command is TOP or RETR, and it is 1 that Mail Contents, which obtain mark position, if protocol command meets；
If S403, content obtaining flag bit are 1, Mail Contents end mark is judged；
403rd, Mail Contents end mark is judged, if then content is stored in eml files, if caching Mail Contents without if
Used for receiving next time.
Further, the stmp mails recovery module, specific execution method is as follows：
S501, meet stmp mail protocol features, function entrance is reduced into stmp mails；
S502, determine whether servers' data, if it is determine whether whether Mail Contents obtain flag bit
For 1；Whether be data, if data orders if protocol command is judged if flag bit is not 1, then Mail Contents obtain mark
Position is 1；
S503, Mail Contents obtain the mail that mark position is 1, then determine whether Mail Contents end mark；
S504, Mail Contents end mark is judged, if then content is stored in eml files, if being cached without if in mail
Hold and used for receiving next time.
Further, the imap mails recovery module, specific execution method is as follows：
S601, meet imap mail protocol interaction features, function entrance is reduced into imap mails；
S602, determine whether client data, if it is determine whether Mail Contents obtain flag bit whether be
1；If not client data, then protocol command is determined whether, if protocol command meets, Mail Contents flag bit is
1 and combine and cache out Mail Contents end mark；
S603, when Mail Contents are reached, determine whether end mark, have the circulation for then carrying out single envelope mail split and
Eml is stored, and Mail Contents are not cached then.
Further, the http mails recovery module just for the http network packets in 163 mailboxes mail also
Original, specific execution method is as follows：
S701, meet http mail protocol interaction features, into http mail recovery module entrances；
S702, determine whether client data, if client data, then further determine whether as respective flag
Position；If not client data, readMessage, listMessage, readMessage interface flag are determined whether
Position, if it is, DeliverMessage interface data contents url is decoded, solution digital content carries out the combination of mime forms, will combine
Mime structure contents write-in eml files in；
S703, if client data and meeting corresponding flag bit, then using zlib storehouses decompression gzip contents, to solution
Pressure content is judged；
S704, readMessage interface flags position is determined whether, if it is, filling in mail mime structures
Head parts；If not then further determining whether as readhtml interface flags position, if readhtml flag bits, then
The html parts of mail mime structures are filled in, the mime structure contents of combination are then write into eml files；
S705, if not readhtml interface flags position, then further determine whether as listMessage interface flags
Position, if listMessage interface flags position, then splits out single envelope Mail Contents, combines mime structure head portions, then
The mime structure contents of combination are write into eml files.
Relative to prior art, the mail restoring method of the present invention based on Tilera multinuclear board network packets
Have the advantage that：
Mail restoring method of the present invention based on Tilera multinuclear board network packets can utilize multinuclear
The performance such as the packet receiving of Tilera High-Speed Hardwares and multi-core parallel concurrent processing realized to the mail restoring function of network packet, according to being made
Tilera boards configuration (actual Tilera boards be up to 100 cores high-speed parallel processing, to performance requirement more
Under high application scenarios, higher configuration Tilera boards can be selected to meet), the current present invention uses 36 cores
Tilera multinuclear boards, energy highest realizes the 36 core parallel processing mails reduction output eml files of 10GE network packet flows,
And the mail restoring function of 163 mailboxes in compatibility pop3, stmp, imap and webmail, can many mail protocol industry of parallel processing
The single mail protocol business of business or individually processing, it is hard using this kind of Tilera multinuclears board in the mail reduction field of network data
Part form exploitation algorithm has tamped this and has realized technological means.And due to the compact property of multinuclear board, computer can be directly inserted in
In PCI-E slots, the hardware board for deploying mail retrieving algorithm can be mounted directly in Portable integral machine, carry out at any time with
The network reconnaissance for mail on ground, there is very big application prospect in actual applications.
Brief description of the drawings
The accompanying drawing for constituting the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is that the mail restoring method based on Tilera multinuclear board network packets described in the embodiment of the present invention is overall
Frame diagram；
Fig. 2 is the initialization of Tilera multinuclears board and the packet receiving block flow diagram described in the embodiment of the present invention；
Fig. 3 is the TCP flow recombination module block flow diagram described in the embodiment of the present invention；
Fig. 4 is the POP3 mail recovery module flow charts described in the embodiment of the present invention；
Fig. 5 is the STMP mail recovery module flow charts described in the embodiment of the present invention；
Fig. 6 is the IMAP mail recovery module flow charts described in the embodiment of the present invention；
Fig. 7 is the HTTP mail recovery module flow charts described in the embodiment of the present invention.
Embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than indicate or dark
Specific orientation must be had, with specific azimuth configuration and operation by showing the device or element of meaning, therefore it is not intended that right
The limitation of the present invention.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or implying phase
To importance or the implicit quantity for indicating indicated technical characteristic.Thus, the feature for defining " first ", " second " etc. can
To express or implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in figure 1, the mail restoring method based on Tilera multinuclear board network packets, it is characterised in that including
Following steps：
Need to dispose development environment before S1, mail reduction, include the company of Tilera multinuclears board and cabinet hardware
Connect, and software systems installation；
After S2, development environment deployment, mail reduction is carried out, Tilera multinuclears board is primarily based on and carries out initial configuration,
Start the hardware resource used and call packet receiving interface to carry out packet receiving；
S3, by the packet received carry out TCP flow recombination module；
S4, enter different mail recovery modules finally according to port classifications and carry out mail restoring operations.
Wherein, development environment is disposed in the step S1, and specific method is as follows：
S101, by Tilera multinuclears board insert Portable integral machine cabinet PCIE slots on, fix multinuclear board
Afterwards, one of multinuclear board or not more than four optical ports are attached by optical module and optical fiber, network data flow passes through light
Fibre enters the optical port formation data path of multinuclear board, and the optical port of Tilera multinuclear boards supports GE and XGE, XGE is selected at present
Flow be 10Ge；
S102, the liunx operating systems for installing centos6.5 on computers, and Tilera development environment versions are installed
MDE4.3.3；
S103, sign in by Tilera log on command tile-monitor liunx systems inside Tilera boards
Unite, in the present context development deployment mail reducing program code.
Wherein, in the step S1, after the development environment deployment, when being debugged to serial ports, by the string of multinuclear board
Mouth debugging mouth is connected on the usb mouths of computer by debugging line, and signing in AccessPort by tile-console orders exports
End.
As shown in Fig. 2 the execution method of the Tilera multinuclears board initialization and packet receiving module, specific as follows：
S201, by receiving user's arrange parameter corresponding configuration and initiating hardware resource are carried out, give multinuclear board to carry out
Memory Allocation；
S202, TCP flow recombination module is initialized and call back function registration；
S203, call mPIPE high speed packet receiving interfaces, the packet receiving of peek modes carries out the access of network packet.
The module mainly carries out corresponding configuration and initiating hardware resource by receiving user's arrange parameter, gives multinuclear board
NotifRng, NotifGroup, buckets, queues etc. carry out Memory Allocation, while being carried out just to the part that tcp is recombinated
Beginningization and call back function are registered, and finally call mPIPE high speed packet receiving interfaces, and the packet receiving of peek modes carries out connecing for network packet
Enter.
Fig. 3 is particular flow sheet, and the execution method of the TCP flow recombination module, method is as follows：
S301, nids_next_special_mpipe function handle packet receiving data；
S302, registered callbacks function pointer chained list recursive call；
S303, Process_tcp carry out TCP restructuring；
Enter the classification judgement that call back function carries out mail protocol after the completion of S304, TCP flow restructuring, entered into not according to port
In same mail recovery module.
Flow recombination function mainly by means of the tcp for the storehouse libnids that increases income, Open Source Code be reconstructed modification, addition and
MPIPE mating interface, tcp stream recombination modules are introduced by network packet flow, while the data structure to libnids is carried out
Modification, adds the user field that data convert algorithm needs to use, facilitates subsequent treatment.Enter readjustment after the completion of Tcp stream restructuring
The classification that function carries out mail protocol judges, is entered into according to port in different mail recovery module algorithms.
Wherein, in the step S2 mail recovery module include pop3 mails recovery module, stmp mails recovery module,
Imap mails recovery module, http mail recovery modules.
As shown in figure 4, the pop3 mails recovery module, according to the feature of pop3 mail protocols, carries out algorithm design,
Client just has mail data and sends the specific side of execution when service end sends TOP or RETR protocol commands in pop3 mail protocols
Method is as follows：
S401, the feature for meeting pop3 mail protocols, function entrance is reduced into pop3 mails；
S402, judge whether it is client data, it is 1 that if it is Mail Contents, which obtain flag bit,；If not then sentencing
Whether disconnected protocol command is TOP or RETR, and it is 1 that Mail Contents, which obtain mark position, if protocol command meets；
If S403, content obtaining flag bit are 1, Mail Contents end mark is judged；
403rd, Mail Contents end mark is judged, if then content is stored in eml files, if caching Mail Contents without if
Used for receiving next time.
As shown in figure 5, the stmp mails recovery module, according to stmp mail protocol features, carries out algorithm design, the calculation
Method is similar with pop3, is sent the difference is that the stmp useful to us protocol command and Mail Contents data flow are all service ends
Come over, and it is DATA to obtain the protocol command of Mail Contents, specific execution method is as follows：
S501, meet stmp mail protocol features, function entrance is reduced into stmp mails；
S502, determine whether servers' data, if it is determine whether whether Mail Contents obtain flag bit
For 1；Whether be data, if data orders if protocol command is judged if flag bit is not 1, then Mail Contents obtain mark
Position is 1；
S503, Mail Contents obtain the mail that mark position is 1, then determine whether Mail Contents end mark；
S504, Mail Contents end mark is judged, if then content is stored in eml files, if being cached without if in mail
Hold and used for receiving next time.
As shown in fig. 6, the imap mails recovery module, the module is used according to imap mail protocol interaction features, band
FETCH protocol commands, and it is whole to carry the similar acquisition request mail such as parameter BODY.PEEK [] or BODY.PEEK [HEADER]
Inside perhaps the protocol command of partial content when, record enters Mail Contents reducing condition, and combines and cache out Mail Contents knot
Beam is accorded with, and when Mail Contents are reached, determines whether end mark, has the circulation for then carrying out single envelope mail to split and eml storages, does not have
Have, cache Mail Contents.Specific execution method is as follows：
S601, meet imap mail protocol interaction features, function entrance is reduced into imap mails；
S602, determine whether client data, if it is determine whether Mail Contents obtain flag bit whether be
1；If not client data, then protocol command is determined whether, if protocol command meets, Mail Contents flag bit is
1 and combine and cache out Mail Contents end mark；
S603, when Mail Contents are reached, determine whether end mark, have the circulation for then carrying out single envelope mail split and
Eml is stored, and Mail Contents are not cached then.
As shown in fig. 7, the mail of the current http network packets just for 163 mailboxes of the http mails recovery module
Reduction, operates the network packet produced analysis to obtain the protocol command form that mailbox is operated according to mailbox：
A) show that mail tabulation is operated when user clicks on " inbox ", request url is POST side in correspondence http agreements
Method and include " ＆func=mbox:ListMessage " is identified；
B) when user, which clicks on some mail, checks Mail Contents, two request url in correspondence http agreements, one is
POST method and include ” ＆func=mbox:ReadMessage " and " ＆action=read " is identified, and includes mail header letter
Breath；Another is GET methods and comprising " read/readhtml.jsp" mark, the postal shown comprising mail with html
Part content；
C) when user, which clicks on, sends mail, request url is POST method and includes " ＆func in correspondence http agreements
=mbox:Compose " and " ＆action=deliver " mark；
Different interface flag positions, when analyzing url, set when recognizing corresponding interface are distributed according to these interface types
The corresponding interface flag bit, the parsing of tap mouth is carried out when Mail Contents are reached, it is necessary first to carry out gzip compressions using zlib
Content decompression, wherein DeliverMessage, which sends the operation that then carries out of mail interface, to be entered by the content of url transcodings
Row decoding, then extracts the field informations such as From, To, Subject in mime forms to Context resolution again and carries out mime forms
Combination, finally by mime forms write eml files in.
Specifically execution method is：
Specifically execution method is：
S701, meet http mail protocol interaction features, into http mail recovery module entrances；
S702, determine whether client data, if client data, then further determine whether as respective flag
Whether position is Content-Encoding:Gzip r n r n and end mark 0 r n r n；If not client data, sentence
Whether disconnected be readMessage, listMessage, readMessage interface flag position, if it is, DeliverMessage connects
Mouth data content url decodings, solution digital content carries out the combination of mime forms, the mime structure contents of combination is write into eml files
In；
S703, if client data and meeting corresponding flag bit, then using zlib storehouses decompression gzip contents, to solution
Pressure content is judged；
S704, readMessage interface flags position is determined whether, if it is, filling in mail mime structures
Head parts；If not then further determining whether as readhtml interface flags position, if readhtml flag bits, then
The html parts of mail mime structures are filled in, the mime structure contents of combination are then write into eml files；
S705, if not readhtml interface flags position, then further determine whether as listMessage interface flags
Position, if listMessage interface flags position, then splits out single envelope Mail Contents, combines mime structure head portions, then
The mime structure contents of combination are write into eml files.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. the mail restoring method based on Tilera multinuclear board network packets, it is characterised in that comprise the following steps：
Need to dispose development environment before S1, mail reduction, include the connection of Tilera multinuclears board and cabinet hardware, with
And the installation of software systems；
After S2, development environment deployment, mail reduction is carried out, Tilera multinuclears board is primarily based on and carries out initial configuration, start
The hardware resource that uses simultaneously calls packet receiving interface to carry out packet receiving；
S3, the packet received transmitted to TCP flow recombination module；
S4, enter different mail recovery modules finally according to port classifications and carry out mail restoring operations.
2. the mail restoring method according to claim 1 based on Tilera multinuclear board network packets, its feature exists
In development environment is disposed in the step S1, and specific method is as follows：
S101, by Tilera multinuclears board insert Portable integral machine cabinet PCIE slots on, fix after multinuclear board, will
One of multinuclear board or not more than four optical ports are attached by optical module and optical fiber, and network data flow is entered by optical fiber
The optical port formation data path of multinuclear board；
S102, the liunx operating systems for installing centos6.5 on computers, and Tilera development environment versions are installed
MDE4.3.3；
S103, sign in by Tilera log on command tile-monitor liunx systems inside Tilera boards,
Development deployment mail reducing program code under the environment.
3. the mail restoring method according to claim 1 or 2 based on Tilera multinuclear board network packets, its feature
It is：In the step S1, after the development environment deployment, when being debugged to serial ports, by the AccessPort mouthful of multinuclear board
It is connected to by debugging line on the usb mouths of computer, AccessPort output end is signed in by tile-console orders.
4. the mail restoring method according to claim 1 based on Tilera multinuclear board network packets, its feature exists
In：In the step S2, the method for the Tilera multinuclears board initialization and packet receiving interface is specific as follows：
S201, by receiving user's arrange parameter corresponding configuration and initiating hardware resource are carried out, give multinuclear board to carry out internal memory
Distribution；
S202, TCP flow recombination module is initialized and call back function registration；
S203, call mPIPE high speed packet receiving interfaces, the packet receiving of peek modes carries out the access of network packet.
5. the mail restoring method according to claim 1 based on Tilera multinuclear board network packets, its feature exists
In：The execution method of the TCP flow recombination module, it is specific as follows：
S301, nids_next_special_mpipe function handle packet receiving data；
S302, registered callbacks function pointer chained list recursive call；
S303, Process_tcp carry out TCP restructuring；
Enter the classification judgement that call back function carries out mail protocol after the completion of S304, TCP restructuring, different postals are entered into according to port
In part recovery module.
6. the mail restoring method according to claim 1 based on Tilera multinuclear board network packets, its feature exists
In：Mail recovery module includes pop3 mails recovery module, stmp mails recovery module, the reduction of imap mails in the step S4
Module, http mail recovery modules.
7. the mail restoring method according to claim 6 based on Tilera multinuclear board network packets, its feature exists
In：The pop3 mails recovery module, specific execution method is as follows：
S401, the feature for meeting pop3 mail protocols, function entrance is reduced into pop3 mails；
S402, judge whether it is client data, it is 1 that if it is Mail Contents, which obtain flag bit,；If not then judgement association
Whether view order is TOP or RETR, and it is 1 that Mail Contents, which obtain mark position, if protocol command meets；
If S403, content obtaining flag bit are 1, Mail Contents end mark is judged；
403rd, Mail Contents end mark is judged, if then content is stored in eml files, under Mail Contents are cached without and if are supplied
Once receive and use.
8. the mail restoring method according to claim 6 based on Tilera multinuclear board network packets, its feature exists
In：The stmp mails recovery module, specific execution method is as follows：
S501, meet stmp mail protocol features, function entrance is reduced into stmp mails；
S502, determine whether servers' data, if it is determine whether that Mail Contents obtain whether flag bit is 1；
Whether be data, if data orders if protocol command is judged if flag bit is not 1, then Mail Contents obtain mark position
For 1；
S503, Mail Contents obtain the mail that mark position is 1, then determine whether Mail Contents end mark；
S504, judge Mail Contents end mark, if then content is stored in eml files, supplied if caching Mail Contents without if
Receive and use next time.
9. the mail restoring method according to claim 6 based on Tilera multinuclear board network packets, its feature exists
In：The imap mails recovery module, specific execution method is as follows：
S601, meet imap mail protocol interaction features, function entrance is reduced into imap mails；
S602, determine whether client data, if it is determine whether that Mail Contents obtain whether flag bit is 1；Such as
Fruit is not client data, then determines whether protocol command, if protocol command meets, and Mail Contents flag bit is 1 simultaneously
And combination caches out Mail Contents end mark；
S603, when Mail Contents are reached, determine whether end mark, have, the circulation for carrying out single envelope mail is split and eml is deposited
Storage, Mail Contents are not cached then.
10. the mail restoring method according to claim 6 in Tilera multinuclear board network packets, its feature exists
In：The http mails recovery module is reduced just for the mail of the http network packets of 163 mailboxes, specific to perform method such as
Under：
S701, meet http mail protocol interaction features, into http mail recovery module entrances；
S702, determine whether client data, if client data, then further determine whether as respective flag position；
If not client data, readMessage, listMessage, readMessage interface flag position are determined whether, such as
Fruit is that DeliverMessage interface data contents url decodings, solution digital content carries out the combination of mime forms, by combination
In mime structure contents write-in eml files；
S703, if client data and meeting corresponding flag bit, then using zlib storehouses decompression gzip contents, in decompression
Appearance is judged；
S704, readMessage interface flags position is determined whether, if it is, filling in the head portions of mail mime structures
Point；If not then further determining whether as readhtml interface flags position, if readhtml flag bits, then fill in postal
The html parts of part mime structures, then write eml files by the mime structure contents of combination；
S705, if not readhtml interface flags position, then further determine whether as listMessage interface flags position,
If listMessage interface flags position, then single envelope Mail Contents are split out, then combination mime structure head portions will
The mime structure contents write-in eml files of combination.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112468389A (en) * | 2020-12-02 | 2021-03-09 | 天津光电通信技术有限公司 | Imap mail reduction method based on tcp recombination |
| CN112468343A (en) * | 2020-12-02 | 2021-03-09 | 天津光电通信技术有限公司 | X86 card-based platform and method for restoring important materials of network data packets |
| WO2021253177A1 (en) * | 2020-06-15 | 2021-12-23 | 深圳市欢太科技有限公司 | File restoration method, and terminal and storage medium |
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