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gerrit.openbmc.org / openbmc / bmcweb / 59b98b2222fddbea3d6f678d9e94006521f0c381
commit59b98b2222fddbea3d6f678d9e94006521f0c381[log] [tgz]
authorJohn Edward Broadbent <jebr@google.com>Tue Jul 13 15:36:32 2021 -0700
committerEd Tanous <ed@tanous.net>Thu Sep 09 02:22:38 2021 +0000
tree44a79228f34c6ae0ce2b333c2f524256f8469872
parent7bb985eeb0930905c2f4d551e895dd5293094931 [diff]
Change ownership of boost::req to crow::req

req is being created later, in the connection life cycle. req was
holding many important values when it was passed to authenticate, so the
authenticate call had to be refactored to includes all the data req was
holding.

Also uses of req before handle have been changed to direct calls to
boot::parse

Tested:
Made a request that did not require authentication
$ curl -vvvv --insecure "https://192.168.7.2:18080/redfish/v1"
Got correct service root

Made a unauthenticated request (Chassis)
$ curl -c cjar -b cjar -k -H "Content-Type: application/json" -X GET https://192.168.7.2:18080/redfish/v1/Chassis
Unauthenticated

Made a log-in request
$ curl -c cjar -b cjar -k -H "Content-Type: application/json" -X POST https://192.168.7.2:18080/login -d "{\"data\": [ \"root\", \"0penBmc\" ] }"

Made (same) Chassis request
$ curl -c cjar -b cjar -k -H "Content-Type: application/json" -X GET https://192.168.7.2:18080/redfish/v1/Chassis

Tested the websockets using scripts/websocket_test.py
Websockets continued to work after this change.

Followed the mTLS instructions here https://github.com/openbmc/docs/blob/master/security/TLS-configuration.md
mTLS continues to work after this change.

Change-Id: I78f78063be0331be00b66349d5d184847add1708
Signed-off-by: John Edward Broadbent <jebr@google.com>
5 files changed
tree: 44a79228f34c6ae0ce2b333c2f524256f8469872
  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. COMMON_ERRORS.md
  21. DEVELOPING.md
  22. Dockerfile
  23. Dockerfile.base
  24. LICENSE
  25. MAINTAINERS
  26. meson.build
  27. meson_options.txt
  28. OEM_SCHEMAS.md
  29. OWNERS
  30. pam-webserver
  31. README.md
  32. Redfish.md
  33. setup.cfg
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 coverage -C builddir test

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.