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gerrit.openbmc.org / openbmc / bmcweb / 2618d5e3906338774da310c9ccf519d64cffd3c9
commit2618d5e3906338774da310c9ccf519d64cffd3c9[log] [tgz]
authorGunnar Mills <gmills@us.ibm.com>Tue Aug 18 13:04:27 2020 -0500
committerGunnar Mills <gmills@us.ibm.com>Thu Aug 20 19:11:32 2020 +0000
tree4a08477d4bd0e00866ff51ebb839520c269ca8da
parente768657651358ed91561cc35439f04b82678f55f [diff]
Increase TFTP timeout

IBM, the only user of TFTP, has a system with 200MB images.
https://github.com/openbmc/openbmc/blob/master/meta-ibm/recipes-phosphor/bmcweb/bmcweb_%25.bbappend#L2

In the future this system's images might grow even larger.

Currently timed the TFTP transfer time at 2 min 37 sec on this system.

Bumped to 10 min though for room for the image to grow and pad the
timeout in case an even slower network.

Considered a parameter, can add if it would ever get set to a different
value.

Tested: TFTP update from GUI works with
https://gerrit.openbmc-project.xyz/c/openbmc/webui-vue/+/35738
Change-Id: I1eed110c9605ee1e116670e46f561c66676e5eed
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
1 file changed
tree: 4a08477d4bd0e00866ff51ebb839520c269ca8da
  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.