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gerrit.openbmc.org / openbmc / bmcweb / 016761affccbd9facc58ad2ce0d8a260b74b6938
commit016761affccbd9facc58ad2ce0d8a260b74b6938[log] [tgz]
authorAppaRao Puli <apparao.puli@linux.intel.com>Sun Aug 02 17:03:10 2020 +0530
committerAppaRao Puli <apparao.puli@linux.intel.com>Thu Aug 06 17:25:13 2020 +0000
tree262ecf71daeb819b1bf0a4703716ae95551ce876
parent144b631845d4ab67a5b21bf91fea4ac2c1d3f006 [diff]
Fix: EventService stops sending events

When redfish log file(/var/log/redfish) is recreated
by rsyslog daemon, EventService stops sending events
to subscribers.

The rsyslog service take redfish log files to back up
as per design. EventService has inotify on redfish log
file modifications. It needs to be removed from inotify
watcher list and added with new File descriptor.
Corrected code to handle remove & add of new descriptor.
Also corrected code to properly handle last event timestamp.

Tested:
 - Ran stress test on redfish log file to create multiple
   backup files and events sends to clients properly, in
   all switching scenarios.

Change-Id: Ic0378edfc2cae86d1f69f6df4c429d07c2744bdf
Signed-off-by: AppaRao Puli <apparao.puli@linux.intel.com>
1 file changed
tree: 262ecf71daeb819b1bf0a4703716ae95551ce876
  1. cmake/
  2. http/
  3. include/
  4. redfish-core/
  5. scripts/
  6. src/
  7. static/
  8. .clang-format
  9. .dockerignore
  10. .gitignore
  11. bmcweb.service.in
  12. bmcweb.socket
  13. build_x86.sh
  14. build_x86_docker.sh
  15. cmake-format.json
  16. CMakeLists.txt
  17. CMakeLists.txt.in
  18. config.h.in
  19. DEVELOPING.md
  20. Dockerfile
  21. Dockerfile.base
  22. JenkinsFile
  23. LICENCE
  24. MAINTAINERS
  25. pam-webserver
  26. README.md
  27. 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.