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gerrit.openbmc.org / openbmc / bmcweb / 6bd5a8d2f6acb79a16c4d514ffd1da6b8c5b97d7
commit6bd5a8d2f6acb79a16c4d514ffd1da6b8c5b97d7[log] [tgz]
authorGunnar Mills <gmills@us.ibm.com>Sat May 16 18:49:33 2020 -0500
committerGunnar Mills <gmills@us.ibm.com>Tue May 19 23:52:43 2020 +0000
tree6df8e232dcd8f3766f072e84aa13e7da4d21333e
parenta778c0261282b95e14ea3f4406959638b5edb040 [diff]
Redfish: AutomaticRetry (AutoReboot)

A new feature of 2020.1. Three properties to represent this:
AutomaticRetryConfig (Enum with three values):
  Disabled
  RetryAttempts: "Automatic retrying of booting is based on a specified
retry count."
  RetryAlways

AutomaticRetryAttempts: "The number of attempts the system will
automatically retry booting."

RemainingAutomaticRetryAttempts: "The number of remaining automatic
retry boots."

Only the "GET". A later commit will allow PATCHing of
AutomaticRetryConfig.

AutomaticRetryAttempts is not on D-Bus and is instead hardcoded to 3.

Tested: Validator passed.
  "Boot": {
    "AutomaticRetryAttempts": 3,
    "AutomaticRetryConfig": "RetryAttempts",
...
    "RemainingAutomaticRetryAttempts": 3
  },

Change-Id: I7a098270411eef2112c47d129aae39cd2b419825
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
1 file changed
tree: 6df8e232dcd8f3766f072e84aa13e7da4d21333e
  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.