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gerrit.openbmc.org / openbmc / bmcweb / 92f682233ff0b8b20692e337632326cbd5a03676
commit92f682233ff0b8b20692e337632326cbd5a03676[log] [tgz]
authorSunitha Harish <sunithaharish04@gmail.com>Thu May 28 05:09:09 2020 -0500
committerSunitha Harish <sunithaharish04@gmail.com>Wed Jun 17 04:26:05 2020 +0000
treedc700a9cfdc6a944581247e62df40dd8a5affa48
parent566329ee0f19fed19cca49aafe7a43799f6c0bba [diff]
Fetch the ClientIP during session creation

This commit saves the IP Address of the client from where the session
was created.

- This is not a user supplied value. The BMC will internally pull the
  IP address from the incoming create-session request.

- It should also be noted that ClientIP will not change if the same session
  token is used from some other IP address for further management of the BMC.

Tested by:
1. Create session
2. Display the Session details with GET command to check the IP from where
the session is created/updated.

GET https://${bmc}/redfish/v1/SessionService/Sessions/<id>
{
  "@odata.id": "/redfish/v1/SessionService/Sessions/<id>",
  "@odata.type": "#Session.v1_0_2.Session",
  "Description": "Manager User Session",
  "Id": "<id>",
  "Name": "User Session",
  "Oem": {
    "OpenBMC": {
      "@odata.type": "#OemSession.v1_0_0.Session",
      "ClientOriginIP": "<ip address>"
    }
  },
  "UserName": "root"
}
3. Redfish validator is run successfully.

Signed-off-by: Sunitha Harish <sunithaharish04@gmail.com>
Change-Id: I0076f260f50a991600ec060c72f3e46fb9a9cbb8
2 files changed
tree: dc700a9cfdc6a944581247e62df40dd8a5affa48
  1. cmake/
  2. http/
  3. include/
  4. redfish-core/
  5. scripts/
  6. src/
  7. static/
  8. .clang-format
  9. .gitignore
  10. bmcweb.service.in
  11. bmcweb.socket
  12. build_x86.sh
  13. cmake-format.json
  14. CMakeLists.txt
  15. CMakeLists.txt.in
  16. config.h.in
  17. DEVELOPING.md
  18. JenkinsFile
  19. LICENCE
  20. MAINTAINERS
  21. pam-webserver
  22. README.md
  23. Redfish.md
README.md

OpenBMC webserver

This component attempts to be a "do everything" embedded webserver for openbmc.

Capabilities

At this time, the webserver implements a few interfaces:

  • Authentication middleware that supports cookie and token based authentication, as well as CSRF prevention backed by linux PAM authentication credentials.
  • An (incomplete) attempt at replicating phosphor-dbus-rest interfaces in C++. Right now, a few of the endpoint definitions work as expected, but there is still a lot of work to be done. The portions of the interface that are functional are designed to work correctly for phosphor-webui, but may not yet be complete.
  • Replication of the rest-dbus backend interfaces to allow bmc debug to logged in users.
  • An initial attempt at a read-only redfish interface. Currently the redfish interface targets ServiceRoot, SessionService, AccountService, Roles, and ManagersService. Some functionality here has been shimmed to make development possible. For example, there exists only a single user role.
  • SSL key generation at runtime. See the configuration section for details.
  • Static file hosting. Currently, static files are hosted from the fixed location at /usr/share/www. This is intended to allow loose coupling with yocto projects, and allow overriding static files at build time.
  • Dbus-monitor over websocket. A generic endpoint that allows UIs to open a websocket and register for notification of events to avoid polling in single page applications. (this interface may be modified in the future due to security concerns.

Configuration

BMCWeb is configured by setting -D flags that correspond to options in bmcweb/CMakeLists.txt and then compiling. For example, cmake -DBMCWEB_ENABLE_KVM=NO ... followed by make. The option names become C++ preprocessor symbols that control which code is compiled into the program.

When BMCWeb starts running, it reads persistent configuration data (such as UUID and session data) from a local file. If this is not usable, it generates a new configuration.

When BMCWeb SSL support is enabled and a usable certificate is not found, it will generate a self-sign a certificate before launching the server. The keys are generated by the secp384r1 algorithm. The certificate

  • is issued by C=US, O=OpenBMC, CN=testhost,
  • is valid for 10 years,
  • has a random serial number, and
  • is signed using the SHA-256 algorithm.