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gerrit.openbmc.org / openbmc / bmcweb / 3dfed536df173ea6d37ac93f428b9094b6a736d1
commit3dfed536df173ea6d37ac93f428b9094b6a736d1[log] [tgz]
authorEd Tanous <ed@tanous.net>Wed Mar 06 14:41:27 2024 -0800
committerEd Tanous <ed@tanous.net>Wed Apr 03 22:51:36 2024 +0000
treec006eca705e05b5fe33bd97a4021a28b8cf49fed
parentc1019828b612ffacea8408eec4a826a8ac601f13 [diff]
Clean up Ethernet to use readJson

Today, patching ethernet ip address arrays can use several
styles.

IpAddresses: [{}, {value: value}, null]

All 3 of those elements are legal.  Today, we unpack values like that
with nlohmann::json, then iterate and unpack further.  This leads to
problems where:

IpAddresses: [{}, {value: value}, 1.0]

would have the same behavior as the prior, given that we check for
"is_object()" to determine the null state.  This is messy at best, and
not typesafe at worst.

Changing this code to use the new class NullOr<> allows the readJson
parser to fail the second example.

Change-Id: Id91f48bb64271dd568041a7c0b1ad285b59d5674
Signed-off-by: Ed Tanous <ed@tanous.net>
1 file changed
tree: c006eca705e05b5fe33bd97a4021a28b8cf49fed
  1. .github/
  2. config/
  3. http/
  4. include/
  5. redfish-core/
  6. scripts/
  7. src/
  8. static/
  9. subprojects/
  10. test/
  11. .clang-format
  12. .clang-tidy
  13. .codespell-ignore
  14. .dockerignore
  15. .gitignore
  16. .markdownlint.yaml
  17. .openbmc-enforce-gitlint
  18. .prettierignore
  19. .shellcheck
  20. AGGREGATION.md
  21. CLIENTS.md
  22. COMMON_ERRORS.md
  23. DBUS_USAGE.md
  24. DEVELOPING.md
  25. HEADERS.md
  26. LICENSE
  27. meson.build
  28. meson_options.txt
  29. OEM_SCHEMAS.md
  30. OWNERS
  31. README.md
  32. Redfish.md
  33. REDFISH_CHECKLIST.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.

Features

The webserver implements a few distinct interfaces:

  • DBus event websocket. Allows registering on changes to specific dbus paths, properties, and will send an event from the websocket if those filters match.
  • OpenBMC DBus REST api. Allows direct, low interference, high fidelity access to dbus and the objects it represents.
  • Serial: A serial websocket for interacting with the host serial console through websockets.
  • Redfish: A protocol compliant, DBus to Redfish translator.
  • KVM: A websocket based implementation of the RFB (VNC) frame buffer protocol intended to mate to webui-vue to provide a complete KVM implementation.

Protocols

bmcweb at a protocol level supports http and https. TLS is supported through OpenSSL.

AuthX

Authentication

Bmcweb supports multiple authentication protocols:

  • Basic authentication per RFC7617
  • Cookie based authentication for authenticating against webui-vue
  • Mutual TLS authentication based on OpenSSL
  • Session authentication through webui-vue
  • XToken based authentication conformant to Redfish DSP0266

Each of these types of authentication is able to be enabled or disabled both via runtime policy changes (through the relevant Redfish APIs) or via configure time options. All authentication mechanisms supporting username/password are routed to libpam, to allow for customization in authentication implementations.

Authorization

All authorization in bmcweb is determined at routing time, and per route, and conform to the Redfish PrivilegeRegistry.

*Note: Non-Redfish functions are mapped to the closest equivalent Redfish privilege level.

Configuration

bmcweb is configured per the meson build files. Available options are documented in meson_options.txt

Compile bmcweb with default options

meson setup builddir
ninja -C builddir

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

Use of persistent data

bmcweb relies on some on-system data for storage of persistent data that is internal to the process. Details on the exact data stored and when it is read/written can seen from the persistent_data namespace.

TLS certificate generation

When SSL support is enabled and a usable certificate is not found, bmcweb will generate a self-signed a certificate before launching the server. Please see the bmcweb source code for details on the parameters this certificate is built with.

Redfish Aggregation

bmcweb is capable of aggregating resources from satellite BMCs. Refer to AGGREGATION.md for more information on how to enable and use this feature.