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gerrit.openbmc.org / openbmc / bmcweb / 76686dcc74002493e22d72e24db9d3326b3a63ed
commit76686dcc74002493e22d72e24db9d3326b3a63ed[log] [tgz]
authorNan Zhou <nanzhoumails@gmail.com>Fri Jun 17 23:01:51 2022 +0000
committerEd Tanous <ed@tanous.net>Tue Jun 21 14:44:02 2022 +0000
tree37ba751f84c9c72bd1fb570b143ca3bfebc24a59
parent9bc556993f0e13bf024a4e7cba13f8339c02c0d8 [diff]
memory: match DIMM ID even more precisely

https://gerrit.openbmc.org/c/openbmc/bmcweb/+/53791 attemps to fix the
common error #12 in memory resource. However, it's still not perfect.
There is an edge case that Partition objects have wrong paths like
/xyz/openbmc_project/Inventory/Item/dimm1, where this partition
will still be parsed as a partition of dimm1.

This commit corrects this by making path checking explicitly different
for DIMM and Partition objects: one check filename, the other check
filename of the parent path.

Tested:
1. /redfish/v1/Systems/system/Memory/dimm0
```
{
    "@odata.id": "/redfish/v1/Systems/system/Memory/dimm0",
    "@odata.type": "#Memory.v1_11_0.Memory",
    "AllowedSpeedsMHz": [],
    "BaseModuleType": "RDIMM",
    "BusWidthBits": 0,
    "CapacityMiB": 1024,
    "DataWidthBits": 0,
    "ErrorCorrection": "NoECC",
    "FirmwareRevision": "0",
    "Id": "dimm0",
    "Name": "DIMM Slot",
    "OperatingSpeedMhz": 0,
    "RankCount": 0,
    "Regions": [
        {
            "MemoryClassification": "Volatile",
            "OffsetMiB": 0,
            "PassphraseEnabled": false,
            "RegionId": "",
            "SizeMiB": 1024
        },
        {
            "MemoryClassification": "Volatile",
            "OffsetMiB": 0,
            "PassphraseEnabled": false,
            "RegionId": "",
            "SizeMiB": 1024
        }
    ],
    "Status": {
        "Health": "OK",
        "HealthRollup": "OK",
        "State": "Enabled"
    }
}
```
2. No validator errors on Memory Resource.

Signed-off-by: Nan Zhou <nanzhoumails@gmail.com>
Change-Id: Ic078b5046ac3397e398f050ed7b54ebadcb2aa32
1 file changed
tree: 37ba751f84c9c72bd1fb570b143ca3bfebc24a59
  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. MAINTAINERS
  28. meson.build
  29. meson_options.txt
  30. OEM_SCHEMAS.md
  31. OWNERS
  32. pam-webserver
  33. README.md
  34. Redfish.md
  35. run-ci
  36. setup.cfg
  37. 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.