Commit Graph

20 Commits

Author SHA1 Message Date
Ruoqing He
61e57e1cb1 misc: Further improve imports styling
By introducing `imports_granularity="Module"` format strategy,
effectively groups imports from the same module into one line or block,
improving maintainability and readability.

Signed-off-by: Ruoqing He <heruoqing@iscas.ac.cn>
2024-09-29 16:13:48 +00:00
Rob Bradford
88a9f79944 misc: Adapt consistent import style formatting
Historically the Cloud Hypervisor coding style has been to ensure that
all imports are ordered and placed in a single group. Unfortunately
cargo fmt has no support for ensuring that all imports are in a single
group so if whitespace lines were added as part of the import statements
then they would only be odered correctly in the group.

By adopting "group_imports="StdExternalCrate" we can enforce a style
where imports are placed in at most three groups for std, external
crates and the crate itself. Choosing a style enforceable by the tooling
reduces the reviewer burden.

Signed-off-by: Rob Bradford <rbradford@rivosinc.com>
2024-09-29 13:08:12 +01:00
Josh Soref
42e9632c53 misc: Fix spelling issues
Misspellings were identified by:
  https://github.com/marketplace/actions/check-spelling

* Initial corrections based on forbidden patterns from the action
* Additional corrections by Google Chrome auto-suggest
* Some manual corrections
* Adding markdown bullets to readme credits section

Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>
2024-06-08 16:31:30 +00:00
Rob Bradford
adb318f4cd misc: Remove redundant "use" imports
With the nightly toolchain (2024-02-18) cargo check will flag up
redundant imports either because they are pulled in by the prelude on
earlier match.

Remove those redundant imports.

Signed-off-by: Rob Bradford <rbradford@rivosinc.com>
2024-02-19 17:54:30 +00:00
Philipp Schuster
7bf0cc1ed5 misc: Fix various spelling errors using typos
This fixes all typos found by the typos utility with respect to the config file.

Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
2023-09-09 10:46:21 +01:00
Rob Bradford
89e658d9ff misc: Update for beta clippy failures on x86-64
Signed-off-by: Rob Bradford <rbradford@rivosinc.com>
2023-05-30 07:18:17 -07:00
Praveen K Paladugu
1143d54ee0 tpm: Add recv timeout while running recvmsg
If swtpm becomes unresponsive, guest gets blocked at "recvmsg" on tpm's
data FD. This change adds a timeout to the data fd socket. If swtpm
becomes unresponsive guest waits for "timeout" (secs) and continues to
run after returning an I/O error to tpm commands.

Signed-off-by: Praveen K Paladugu <prapal@linux.microsoft.com>
2023-02-10 17:49:03 +01:00
Wei Liu
29ebecccb0 tpm: be more consistent when converting responses
Do the following:

1. Use from_be_bytes to drop mutable slices.
2. Check for the exact buffer size throughout.
3. Simplify ptm_to_request where possible.
4. Make error messages style consistent.

Fix a typo in code comment while at it.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2023-01-31 18:09:28 +00:00
Wei Liu
5646a917ff tpm: handle short write
There is no guarantee that the write can send the whole buffer at once.

In those rare occasions, we should return a sensible error.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2023-01-31 18:09:28 +00:00
Wei Liu
6e22f23831 tpm: save almost 8KB stack space
The largest possible PTM response is only 16 bytes. Size the output
buffer correctly.

In the socket read function, rely on the caller to provide a
sufficiently large buffer. That eliminates another large stack variable.

In total this saves almost 8KB stack space.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2023-01-31 18:09:28 +00:00
Wei Liu
8e996ff2fe tpm: drop unnecessary cast
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2023-01-31 18:09:28 +00:00
Wei Liu
1ce1fe7334 tpm: rework set_buffer_size
Make the code more idiomatic by wrapping the actual size configured in
the returning Result type. This further allows simplifying
get_buffer_size.

The debug message in startup_tpm is more useful if it prints out the
actual size than the wanted size.

No functional change.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2023-01-26 07:57:48 +00:00
Wei Liu
73af65f417 tpm: drop unused fields in BackendCmd struct
They are never used.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2023-01-26 07:57:48 +00:00
Wei Liu
cffde0ff65 devices: avoid unnecessary allocations in TPM code
Use the data buffer in the TPM device directly.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2023-01-26 07:57:48 +00:00
Wei Liu
e41b7d90d5 tpm: drop cmd from Emulator struct
The command is not done asynchronously. And there is no way to propagate
this error anywhere.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2023-01-26 07:57:48 +00:00
Wei Liu
60425471dd tpm: get_buffer_size always succeeds
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2023-01-26 07:57:48 +00:00
Wei Liu
7f4b5dfae5 tpm: change the style of safety comments
To satisfy clippy's check.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-11-18 12:50:01 +00:00
Praveen K Paladugu
19fdf8bc79 tpm: Add emulator module
Emulator module adds methods required to communicate with swtpm
over Ctrl and Data channels.

Signed-off-by: Praveen K Paladugu <prapal@linux.microsoft.com>
Co-authored-by: Sean Yoo <t-seanyoo@microsoft.com>
2022-11-15 16:42:21 +00:00
Praveen K Paladugu
58b902d036 tpm: Add socket module
Add SocketDev struct. Methods in SocketDev will be used to read & write
to Ctrl channel created by swtpm.

Signed-off-by: Praveen K Paladugu <prapal@linux.microsoft.com>
Co-authored-by: Sean Yoo <t-seanyoo@microsoft.com>
2022-11-15 16:42:21 +00:00
Praveen K Paladugu
e3213c8a79 tpm: Add library module
Add structures and related methods to process Ctrl requests and responses
from swtpm to tpm library.

Signed-off-by: Praveen K Paladugu <prapal@linux.microsoft.com>
Co-authored-by: Sean Yoo <t-seanyoo@microsoft.com>
2022-11-15 16:42:21 +00:00