CN115914340B - A BMC communication method, system, device and storage medium - Google Patents
A BMC communication method, system, device and storage medium Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a BMC communication method which comprises the following steps of creating a server side and a proxy client side in a host, creating a client side and a proxy server side in the BMC, connecting the server side and the proxy client side in the host through a socket, connecting the proxy client side in the host and the proxy server side in the BMC through a KCS interface, connecting the proxy server side and the client side in the BMC through the socket, and carrying out communication between the BMC and the host through the server side and the proxy client side in the host and the client side and the proxy server side in the BMC. The invention also discloses a system, computer equipment and a readable storage medium. The scheme provided by the invention abstracts a layer of UDS proxy, an application program developer does not need to consider how to call a complex KCS driver, and only needs to realize a simple UDS socket, so that inter-process communication can be carried out, the development efficiency is improved, and the exchange of messages, tools and logs between BMC and HOST is more convenient.
Description
Technical Field
The invention relates to the field of servers, in particular to a BMC communication method, a BMC communication system, BMC communication equipment and a storage medium.
Background
The existing server basically comprises two systems, namely an arm linux system of a BMC and an x86 linux system of an HOST, which belong to different systems, two processes respectively on the BMC and the HOST cannot realize UDS communication, because a precondition of UDS communication is that two processes are required to be on one system, most of the processes between the BMC and the HOST are communicated through SYSTEM INTERFACE at present, and the communication mode is that the KCS drive is called by means of KCS (system interface) to realize data transmission and reception, but the application program developer is inconvenient, and a method for communicating between the BMC and the HOST is not relatively universal and mature.
Disclosure of Invention
In view of this, in order to overcome at least one aspect of the above-mentioned problems, an embodiment of the present invention provides a BMC communication method, including the following steps:
creating a server side and a proxy client side in a host, and creating the client side and the proxy server side in a BMC;
establishing connection between a server side and an agent client side in the host through a socket;
Establishing connection between a proxy client in a host and a proxy server in the BMC through a KCS interface;
establishing connection between a proxy server side and a client side in the BMC through a socket;
And the BMC and the host are communicated through the server side and the proxy client side in the host and the client side and the proxy server side in the BMC.
In some embodiments, establishing a connection between a server and a proxy client in the host through a socket further comprises:
creating a socket by using the server and creating a file of the socket type under a preset folder;
And responding to the agent client side to monitor that the server side creates a file of a socket under a preset folder, creating the socket and connecting the server side by using the file of the socket type.
In some embodiments, establishing a connection between a proxy client in a host and a proxy server in the BMC through a KCS interface further comprises:
the proxy client calls a KCS interface to send an instruction to the BMC, wherein the instruction carries the file name and the path of a file of a socket type to be created;
the proxy server creates a socket and creates a socket type file based on the received file name and path.
In some embodiments, establishing a connection between the proxy server and the client in the BMC through a socket, further includes:
and creating a socket at the client and realizing the connection between the proxy server and the client through the socket type file in the proxy server.
Based on the same inventive concept, according to another aspect of the present invention, an embodiment of the present invention further provides a BMC communication system, including:
The system comprises a creation module, a server and a proxy client, wherein the creation module is configured to create the server and the proxy client in a host and create the client and the proxy server in a BMC;
The first connection module is configured to establish connection between a server side and an agent client side in the host through a socket;
the second connection module is configured to establish connection between the proxy client in the host and the proxy server in the BMC through the KCS interface;
The third connection module is configured to establish connection between the proxy server side and the client side in the BMC through a socket;
and the communication module is configured to communicate the BMC with the host through the server side and the proxy client side in the host and the client side and the proxy server side in the BMC.
In some embodiments, the first connection module is further configured to:
creating a socket by using the server and creating a file of the socket type under a preset folder;
And responding to the agent client side to monitor that the server side creates a file of a socket under a preset folder, creating the socket and connecting the server side by using the file of the socket type.
In some embodiments, the second connection module is further configured to:
the proxy client calls a KCS interface to send an instruction to the BMC, wherein the instruction carries the file name and the path of a file of a socket type to be created;
the proxy server creates a socket and creates a socket type file based on the received file name and path.
In some embodiments, the third connection module is further configured to:
and creating a socket at the client and realizing the connection between the proxy server and the client through the socket type file in the proxy server.
Based on the same inventive concept, according to another aspect of the present invention, an embodiment of the present invention further provides a computer apparatus, including:
At least one processor, and
A memory storing a computer program executable on the processor, wherein the processor executes the program to perform the steps of:
creating a server side and a proxy client side in a host, and creating the client side and the proxy server side in a BMC;
establishing connection between a server side and an agent client side in the host through a socket;
Establishing connection between a proxy client in a host and a proxy server in the BMC through a KCS interface;
establishing connection between a proxy server side and a client side in the BMC through a socket;
And the BMC and the host are communicated through the server side and the proxy client side in the host and the client side and the proxy server side in the BMC.
In some embodiments, establishing a connection between a server and a proxy client in the host through a socket further comprises:
creating a socket by using the server and creating a file of the socket type under a preset folder;
And responding to the agent client side to monitor that the server side creates a file of a socket under a preset folder, creating the socket and connecting the server side by using the file of the socket type.
In some embodiments, establishing a connection between a proxy client in a host and a proxy server in the BMC through a KCS interface further comprises:
the proxy client calls a KCS interface to send an instruction to the BMC, wherein the instruction carries the file name and the path of a file of a socket type to be created;
the proxy server creates a socket and creates a socket type file based on the received file name and path.
In some embodiments, establishing a connection between the proxy server and the client in the BMC through a socket, further includes:
and creating a socket at the client and realizing the connection between the proxy server and the client through the socket type file in the proxy server.
Based on the same inventive concept, according to another aspect of the present invention, there is also provided a computer-readable storage medium storing a computer program which, when executed by a processor, performs the steps of:
creating a server side and a proxy client side in a host, and creating the client side and the proxy server side in a BMC;
establishing connection between a server side and an agent client side in the host through a socket;
Establishing connection between a proxy client in a host and a proxy server in the BMC through a KCS interface;
establishing connection between a proxy server side and a client side in the BMC through a socket;
And the BMC and the host are communicated through the server side and the proxy client side in the host and the client side and the proxy server side in the BMC.
In some embodiments, establishing a connection between a server and a proxy client in the host through a socket further comprises:
creating a socket by using the server and creating a file of the socket type under a preset folder;
And responding to the agent client side to monitor that the server side creates a file of a socket under a preset folder, creating the socket and connecting the server side by using the file of the socket type.
In some embodiments, establishing a connection between a proxy client in a host and a proxy server in the BMC through a KCS interface further comprises:
the proxy client calls a KCS interface to send an instruction to the BMC, wherein the instruction carries the file name and the path of a file of a socket type to be created;
the proxy server creates a socket and creates a socket type file based on the received file name and path.
In some embodiments, establishing a connection between the proxy server and the client in the BMC through a socket, further includes:
and creating a socket at the client and realizing the connection between the proxy server and the client through the socket type file in the proxy server.
The invention has the advantages that the scheme provided by the invention realizes a new method for performing process communication between the BMC and the HOST by using the UDS socket through the KCS, abstracts a layer of UDS proxy from the perspective of an application program developer, and the application program developer can perform inter-process communication only by realizing a simple UDS socket without considering how a complex KCS drive is called, thereby improving the development efficiency, and further facilitating the exchange of messages, tools and logs between the BMC and the HOST.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention and that other embodiments may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flow chart of a BMC communication method according to an embodiment of the present invention;
FIG. 2 is a schematic block diagram of a BMC communication method according to an embodiment of the present invention;
FIG. 3 is a server side startup flowchart provided by an embodiment of the present invention;
FIG. 4 is a flow chart of a proxy client post-startup provided by an embodiment of the present invention;
FIG. 5 is a proxy server post-startup flow provided by an embodiment of the present invention;
FIG. 6 is a client side startup flowchart provided by an embodiment of the present invention;
Fig. 7 is a schematic structural diagram of a BMC communication system according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a computer device according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a computer-readable storage medium according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
It should be noted that, in the embodiments of the present invention, all the expressions "first" and "second" are used to distinguish two entities with the same name but different entities or different parameters, and it is noted that the "first" and "second" are only used for convenience of expression, and should not be construed as limiting the embodiments of the present invention, and the following embodiments are not described one by one.
In the embodiment of the invention, UDS is unix domain socket, a socket mode of process communication under linux;
KCS Keyboard Controller Style, a bus protocol implemented by LPC (low pin count)
According to an aspect of the present invention, an embodiment of the present invention proposes a BMC communication method, as shown in fig. 1, which may include the steps of:
s1, a server side and a proxy client side are created in a host, and the client side and the proxy server side are created in a BMC;
s2, establishing connection between the server side and the proxy client side in the host through a socket;
S3, establishing connection between a proxy client in a host and a proxy server in the BMC through a KCS interface;
s4, establishing connection between the proxy server side and the client side in the BMC through a socket;
s5, the communication between the BMC and the host is carried out through the server side and the proxy client side in the host and the client side and the proxy server side in the BMC.
The scheme provided by the invention provides a method for simulating UDS process communication between the BMC and the HOST heterogeneous system, and through using a KCS interface between the BMC and the HOST, universal and mature inter-process UDS communication is realized between the BMC and the HOST heterogeneous system, a message forwarding layer is abstracted, and the UDS is universal and mature for application program developers.
The method has the advantages that an application program developer does not need to consider how to use the bottom KCS driver, only needs to develop the APP of the upper UDS communication, reduces the difficulty of program development among processes, and has a lightweight communication framework in the abstract layer.
The abstract layer-message forwarding layer is provided, in order to encapsulate and shield the interaction of the bottom layer, a proxy server is newly built as a proxy process of the BMC client, a proxy client is newly built as a proxy process of the HOST server, the proxy process carries out the message interaction through a KCS interface, and the proxy process is reflected to the upper layer to carry out UDS communication with the client.
The message forwarding layer mainly performs data forwarding by means of a KCS interface protocol, wherein HOST side send_data_to_bmc () and recv_data_to_bmc () functions encapsulate KCS drivers and can receive data from and send data to the BMC, BMC side send_data_to_host () and recv_data_to_host () functions encapsulate KCS drivers and can receive data from the BMC and send data to the HOST, and the method is particularly related to a kernel driver implementation.
In some embodiments, as shown in fig. 2, to implement a schematic diagram of UDS communication between a BMC and an HOST heterogeneous system, a key technical point is a message forwarding layer abstracted in fig. 2, and an abstract layer is implemented using a KCS system interface between the BMC and the HOST.
In some embodiments, establishing a connection between a server and a proxy client in the host through a socket further comprises:
creating a socket by using the server and creating a file of the socket type under a preset folder;
And responding to the agent client side to monitor that the server side creates a file of a socket under a preset folder, creating the socket and connecting the server side by using the file of the socket type.
Specifically, generally, a process of UDS communication is used, and a server end is started first to wait for client connection. As shown in fig. 3, the startup procedure at HOST side server is:
Transferring the parameter/tmp/uds _conn/xx.sock to the server and starting the server;
creating a socket with the field of AF_UNIX;
Assigning an entry xx.sock path to a member sun path in a sockaddr_un structure, namely creating a socket type file xx.sock under a/tmp/uds _conn/folder, wherein the/tmp/uds _conn/folder is monitored by a proxy;
bind function binding socket;
and circularly monitoring messages sent by the agent clients.
In some embodiments, establishing a connection between a proxy client in a host and a proxy server in the BMC through a KCS interface further comprises:
the proxy client calls a KCS interface to send an instruction to the BMC, wherein the instruction carries the file name and the path of a file of a socket type to be created;
the proxy server creates a socket and creates a socket type file based on the received file name and path.
Specifically, as shown in fig. 4, after the proxy client is started, the proxy client monitors/tmp/uds _conn folder, once a socket type file is created in the folder, a socket with a field of af_unix is created immediately, then the server of the HOST is connected through the file, and then a KCS sending interface is called to send an instruction to the proxy server of the BMC, and data returned by the BMC is received.
In some embodiments, establishing a connection between the proxy server and the client in the BMC through a socket, further includes:
and creating a socket at the client and realizing the connection between the proxy server and the client through the socket type file in the proxy server.
Specifically, as shown in fig. 5, after the proxy server starts, the proxy server waits for a UDS establishment instruction sent by the proxy client, where the instruction includes a socket file name to be created, and after a UDS server is successfully established, the proxy server returns 0x55 to the HOST side and waits for the BMC side client to connect. Similarly, as shown in FIG. 6, after the client on the BMC side starts, a UDS connection is established with the proxy.
The scheme provided by the invention realizes a new method for performing process communication between the BMC and the HOST by using the UDS socket through the KCS, abstracts a layer of UDS proxy from the perspective of an application program developer, and the application program developer can perform inter-process communication by only realizing a simple UDS socket without considering how a complex KCS driver is called, thereby improving the development efficiency and more conveniently exchanging messages, tools and logs between the BMC and the HOST.
Based on the same inventive concept, according to another aspect of the present invention, there is also provided a BMC communication system 400, as shown in fig. 6, including:
A creating module 401 configured to create a server and a proxy client in a host and create a client and a proxy server in a BMC;
A first connection module 402 configured to establish a connection between a server and a proxy client in the host through a socket;
a second connection module 403 configured to establish a connection between a proxy client in a host and a proxy server in the BMC through a KCS interface;
a third connection module 404, configured to establish a connection between the proxy server and the client in the BMC through a socket;
and the communication module 405 is configured to perform communication between the BMC and the host through the server side and the proxy client side in the host and the client side and the proxy server side in the BMC.
In some embodiments, the first connection module 402 is further configured to:
creating a socket by using the server and creating a file of the socket type under a preset folder;
And responding to the agent client side to monitor that the server side creates a file of a socket under a preset folder, creating the socket and connecting the server side by using the file of the socket type.
In some embodiments, the second connection module 403 is further configured to:
the proxy client calls a KCS interface to send an instruction to the BMC, wherein the instruction carries the file name and the path of a file of a socket type to be created;
the proxy server creates a socket and creates a socket type file based on the received file name and path.
In some embodiments, the third connection module 404 is further configured to:
and creating a socket at the client and realizing the connection between the proxy server and the client through the socket type file in the proxy server.
The scheme provided by the invention realizes a new method for performing process communication between the BMC and the HOST by using the UDS socket through the KCS, abstracts a layer of UDS proxy from the perspective of an application program developer, and the application program developer can perform inter-process communication by only realizing a simple UDS socket without considering how a complex KCS driver is called, thereby improving the development efficiency and more conveniently exchanging messages, tools and logs between the BMC and the HOST.
Based on the same inventive concept, according to another aspect of the present invention, as shown in fig. 7, an embodiment of the present invention further provides a computer apparatus 501, including:
At least one processor 520, and
The memory 510, the memory 510 stores a computer program 511 executable on a processor, and the processor 520 executes steps of any of the BMC communication methods described above when executing the program.
According to another aspect of the present invention, as shown in fig. 8, based on the same inventive concept, an embodiment of the present invention further provides a computer-readable storage medium 601, where the computer-readable storage medium 601 stores a computer program 610, and the computer program 610 performs steps of any of the BMC communication methods described above when executed by a processor.
Finally, it should be noted that, as will be appreciated by those skilled in the art, all or part of the procedures in implementing the methods of the embodiments described above may be implemented by a computer program for instructing relevant hardware, and the program may be stored in a computer readable storage medium, and the program may include the procedures of the embodiments of the methods described above when executed.
Further, it should be appreciated that the computer-readable storage medium (e.g., memory) herein can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the disclosure herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as software or hardware depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.
The foregoing is an exemplary embodiment of the present disclosure, but it should be noted that various changes and modifications could be made herein without departing from the scope of the disclosure as defined by the appended claims. The functions, steps and/or actions of the method claims in accordance with the disclosed embodiments described herein need not be performed in any particular order. Furthermore, although elements of the disclosed embodiments may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.
It should be understood that as used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly supports the exception. It should also be understood that "and/or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.
The foregoing embodiment of the present invention has been disclosed with reference to the number of embodiments for the purpose of description only, and does not represent the advantages or disadvantages of the embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program for instructing relevant hardware, and the program may be stored in a computer readable storage medium, where the storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
It will be appreciated by persons skilled in the art that the foregoing discussion of any embodiment is merely exemplary and is not intended to imply that the scope of the disclosure of embodiments of the invention, including the claims, is limited to such examples, that technical features of the above embodiments or different embodiments may be combined and that many other variations of the different aspects of the embodiments of the invention as described above exist within the spirit of the embodiments of the invention, which are not provided in detail for clarity. Therefore, any omission, modification, equivalent replacement, improvement, etc. of the embodiments should be included in the protection scope of the embodiments of the present invention.
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| US9756143B2 (en) * | 2015-09-09 | 2017-09-05 | American Megatrends, Inc. | System and method for improving virtual media redirection speed in baseboard management controller (BMC) |
| WO2019059754A1 (en) * | 2018-06-03 | 2019-03-28 | De Hoz Diego Jorge David | Secure communication method and system using network socket proxying |
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