Gitiles
Code Review Sign In
gerrit.openbmc.org / openbmc / bmcweb / de703c5d109061198dee7a9ea6ce64d5a8121dbb
commitde703c5d109061198dee7a9ea6ce64d5a8121dbb[log] [tgz]
authorJason M. Bills <jason.m.bills@intel.com>Thu Jun 23 14:19:04 2022 -0700
committerEd Tanous <ed@tanous.net>Tue Jun 28 00:07:06 2022 +0000
tree0f9f34c9e802e49952b326822d7bccf3b324b0b6
parentefde4ec92bdad203f611c4f369877a770f315ba5 [diff]
Update handling of skipped log entries

We now skip log entries where the MessageId is not in the Message
Registry. However, since a blank entry is added to the array before the
MessageId is checked, it was leaving an empty {} in that location and
incrementing the Members@odata.count.

This change moves the MessageId check to before the entry count is
incremented to fix the Members@odata.count and moves the push_back()
into the array to the end, so an entry is only added if it's valid.

Tested:
Added three entries to the log as follows: good, bad, good.
The entries array showed only the two good entries with
Members@odata.count=2.
Using top=2, still showed only the two good entries with
Members@odata.count=2.
Skip did not work but appears to already be broken, so it was not
impacted by this change.
Confirmed that getting a single good entry still works.

Change-Id: I08ffc56af14004e2221acdb4a091bbfeb9c21c70
Signed-off-by: Jason M. Bills <jason.m.bills@intel.com>
1 file changed
tree: 0f9f34c9e802e49952b326822d7bccf3b324b0b6
  1. .github/
  2. http/
  3. include/
  4. redfish-core/
  5. scripts/
  6. src/
  7. static/
  8. subprojects/
  9. .clang-format
  10. .clang-ignore
  11. .clang-tidy
  12. .dockerignore
  13. .gitignore
  14. .shellcheck
  15. bmcweb.service.in
  16. bmcweb.socket.in
  17. bmcweb_config.h.in
  18. build_x86.sh
  19. build_x86_docker.sh
  20. CLIENTS.md
  21. COMMON_ERRORS.md
  22. DEVELOPING.md
  23. Dockerfile
  24. Dockerfile.base
  25. HEADERS.md
  26. LICENSE
  27. meson.build
  28. meson_options.txt
  29. OEM_SCHEMAS.md
  30. OWNERS
  31. pam-webserver
  32. README.md
  33. Redfish.md
  34. run-ci
  35. setup.cfg
  36. TESTING.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/meson_options.txt and then compiling. For example, meson <builddir> -Dkvm=disabled ... followed by ninja in build directory. The option names become C++ preprocessor symbols that control which code is compiled into the program.

Compile bmcweb with default options:

meson builddir
ninja -C builddir

Compile bmcweb with yocto defaults:

meson builddir -Dbuildtype=minsize -Db_lto=true -Dtests=disabled
ninja -C buildir

If any of the dependencies are not found on the host system during configuration, meson automatically gets them via its wrap dependencies mentioned in bmcweb/subprojects.

Enable/Disable meson wrap feature

meson builddir -Dwrap_mode=nofallback
ninja -C builddir

Enable debug traces

meson builddir -Dbuildtype=debug
ninja -C builddir

Generate test coverage report:

meson builddir -Db_coverage=true -Dtests=enabled
ninja -C builddir test
ninja -C builddir coverage

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.