tls: add support for setting min/max TLS version and cipher list #10133
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added 4 commits
March 26, 2025 12:50
introduces `tls_min_version`, `tls_max_version`, and `tls_ciphers` fields to input instances. These options are parsed during config loading and applied during TLS initialization." Signed-off-by: Eduardo Silva <[email protected]>
Adds support for `tls.min_version`, `tls.max_version`, and `tls.ciphers` in output instances. Values are parsed and enforced during TLS context setup. Signed-off-by: Eduardo Silva <[email protected]>
Adds backend API hooks `set_minmax_proto` and `set_ciphers`, and utility functions `flb_tls_set_minmax_proto()` and `flb_tls_set_ciphers()` for applying TLS constraints. Signed-off-by: Eduardo Silva <[email protected]>
Adds support for parsing TLS protocol versions and disabling specific ones using SSL options. Also enables cipher selection via `SSL_CTX_set_cipher_list()`. Signed-off-by: Eduardo Silva <[email protected]>
edsiper
requested review from
leonardo-albertovich,
fujimotos and
koleini
as code owners
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This PR introduces three new TLS configuration options for both input and output plugins:
tls.min_version: specifies the minimum allowed TLS version (e.g., TLSv1.1, TLSv1.2).tls.max_version: specifies the maximum allowed TLS version (e.g., TLSv1.2, TLSv1.3).tls.ciphers: allows users to define a specific set of TLS ciphers (up to TLSv1.2).The options are added to the input/output configuration map and respected during TLS context initialization. This enhances TLS flexibility and allows better control over security compliance and compatibility with external systems.
Fluent Bit is licensed under Apache 2.0, by submitting this pull request I understand that this code will be released under the terms of that license.