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10 commits

Author SHA1 Message Date
Val Snyder
8d485b9bfd
FIPS-compliant CVD signing and verification
Add X509 certificate chain based signing with PKCS7-PEM external
signatures distributed alongside CVD's in a custom .cvd.sign format.
This new signing and verification mechanism is primarily in support
of FIPS compliance.

Fixes: https://github.com/Cisco-Talos/clamav/issues/564

Add a Rust implementation for parsing, verifying, and unpacking CVD
files.

Now installs a 'certs' directory in the app config directory
(e.g. <prefix>/etc/certs). The install location is configurable.
The CMake option to configure the CVD certs directory is:
  `-D CVD_CERTS_DIRECTORY=PATH`

New options to set an alternative CVD certs directory:
- Commandline for freshclam, clamd, clamscan, and sigtool is:
  `--cvdcertsdir PATH`
- Env variable for freshclam, clamd, clamscan, and sigtool is:
  `CVD_CERTS_DIR`
- Config option for freshclam and clamd is:
  `CVDCertsDirectory PATH`

Sigtool:
- Add sign/verify commands.
- Also verify CDIFF external digital signatures when applying CDIFFs.
- Place commonly used commands at the top of --help string.
- Fix up manpage.

Freshclam:
- Will try to download .sign files to verify CVDs and CDIFFs.
- Fix an issue where making a CLD would only include the CFG file for
daily and not if patching any other database.

libclamav.so:
- Bump version to 13:0:1 (aka 12.1.0).
- Also remove libclamav.map versioning.
  Resolves: https://github.com/Cisco-Talos/clamav/issues/1304
- Add two new API's to the public clamav.h header:
  ```c
  extern cl_error_t cl_cvdverify_ex(const char *file,
                                    const char *certs_directory);

  extern cl_error_t cl_cvdunpack_ex(const char *file,
                                    const char *dir,
                                    bool dont_verify,
                                    const char *certs_directory);
  ```
  The original `cl_cvdverify` and `cl_cvdunpack` are deprecated.
- Add `cl_engine_field` enum option `CL_ENGINE_CVDCERTSDIR`.
  You may set this option with `cl_engine_set_str` and get it
  with `cl_engine_get_str`, to override the compiled in default
  CVD certs directory.

libfreshclam.so: Bump version to 4:0:0 (aka 4.0.0).

Add sigtool sign/verify tests and test certs.

Make it so downloadFile doesn't throw a warning if the server
doesn't have the .sign file.

Replace use of md5-based FP signatures in the unit tests with
sha256-based FP signatures because the md5 implementation used
by Python may be disabled in FIPS mode.
Fixes: https://github.com/Cisco-Talos/clamav/issues/1411

CMake: Add logic to enable the Rust openssl-sys / openssl-rs crates
to build against the same OpenSSL library as is used for the C build.
The Rust unit test application must also link directly with libcrypto
and libssl.

Fix some log messages with missing new lines.

Fix missing environment variable notes in --help messages and manpages.

Deconflict CONFDIR/DATADIR/CERTSDIR variable names that are defined in
clamav-config.h.in for libclamav from variable that had the same name
for use in clamav applications that use the optparser.

The 'clamav-test' certs for the unit tests will live for 10 years.
The 'clamav-beta.crt' public cert will only live for 120 days and will
be replaced before the stable release with a production 'clamav.crt'.
2025-03-26 19:33:25 -04:00
Val Snyder
7ff29b8c37
Bump copyright dates for 2025 2025-02-14 10:24:30 -05:00
Micah Snyder
2e544984f0
Freshclam, Sigtool, Clamconf: fix database line count if has empty lines
Fixes: https://github.com/Cisco-Talos/clamav/issues/1390
2024-10-30 17:45:36 -04:00
Micah Snyder
9cb28e51e6 Bump copyright dates for 2024 2024-01-22 11:27:17 -05:00
RainRat
caf324e544
Fix typos (no functional changes) 2023-11-26 18:01:19 -05:00
Răzvan Cojocaru
e4fe6654c1
Add options: --fail-if-cvd-older-than, FailIfCvdOlderThan
* Add a new function cl_cvdgetage() to the libclamav API. 

This function will retrieve the age of the youngest file in a
database directory, or the age of a single CVD (or CLD) file.

* Add new clamscan option --fail-if-cvd-older-than=days

When passed, causes clamscan to exit with a non-zero return code
if the virus database is older than the specified number of days.

* Add new clamd option --fail-if-cvd-older-than=days

When passed, causes clamd to exit on start-up with a non-zero
return code if the virus database is older than the specified
number of days.

Additionally, we introduce FailIfCvdOlderThan as a clamd.conf
synonym for --fail-if-cvd-older-than.

Fixes #820
2023-03-28 14:22:48 -07:00
Micah Snyder
6eebecc303 Bump copyright for 2023 2023-02-12 11:20:22 -08:00
mko-x
a21cc6dcd7
Add explicit log level parameter to application logging API
* Added loglevel parameter to logg()

* Fix logg and mprintf internals with new loglevels

* Update all logg calls to set loglevel

* Update all mprintf calls to set loglevel

* Fix hidden logg calls

* Executed clam-format
2022-02-15 15:13:55 -08:00
micasnyd
140c88aa4e Bump copyright for 2022
Includes minor format corrections.
2022-01-09 14:23:25 -07:00
Micah Snyder
c025afd683 Rename "shared" library to "common"
The named "shared" is confusing, especially now that these features are
built as a static library instead of being directly compiled into the
various applications.
2021-04-20 17:31:19 -07:00
Renamed from shared/misc.c (Browse further)