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detect/transform: from_base64 transform #11007
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Refactor utility functions/definitions from the byte_math module into the parser module. This includes parse_var and ResultValue Issue: 6487
Issue: 6487 Implement from_base64 option parsing in Rust. The Rust module also contains unit tests.
Issue: 6487 Implement the from_base64 transform: [bytes value] [offset value] [mode strict|rfc4648|rfc2045] The value for bytes and offset may be a byte_ variable or an unsigned integer.
Issue: 6487 Document the new transform and indicate that it's the preferred way to perform base64 decoding (preferred over base64_decode)
Issue: 6487 To avoid ambiguity, a single definition for base 64 decoding modes will be used. The Rust base64 transform contains the definitions for the existing mode types: Strict, RFC2045, RFC4648
Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## master #11007 +/- ##
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- Coverage 82.94% 82.90% -0.05%
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Files 918 919 +1
Lines 248784 249141 +357
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+ Hits 206351 206546 +195
- Misses 42433 42595 +162
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Thanks for incorporating the doc changes! looking good to me :)
Information: QA ran without warnings. Pipeline 20460 |
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Now needs a rebase
Continued in #11299 |
Continuation of #10991
This PR provides the
from_base64
transform used to match on content decoded with base64 using the mode (default rfc4648).Link to redmine ticket: 6487
Describe changes:
from_base64
Updates:
Provide values to any of the below to override the defaults.
To use a pull request use a branch name like
pr/N
whereN
is thepull request number.
Alternatively,
SV_BRANCH
may also be a link to anOISF/suricata-verify pull-request.
SV_BRANCH=OISF/suricata-verify#1670