gen_crt_bundle.py only parses files ending in .pem or .der, but silently
ignored anything else. A PEM certificate named e.g. ca.crt was skipped
without a word, and since the build invokes the script with -q, even the
"Successfully added 0 certificates" hint was suppressed. The build then
succeeded and embedded a bundle without the certificate, and the problem
only surfaced at runtime as a TLS verification failure.
A file passed directly via --input, which is what
CONFIG_MBEDTLS_CUSTOM_CERTIFICATE_BUNDLE_PATH points at, is now expected
to be a certificate: an unsupported extension raises an InputError and
fails the build with a message naming the file and the two accepted
extensions. Files found while scanning a directory keep being skipped,
as a certificate directory may legitimately contain other files, but a
warning is now printed unconditionally so it is visible in the build log.
Also document the requirement in the Kconfig help text and in the
esp_crt_bundle documentation.
Closes https://github.com/espressif/esp-idf/issues/18933
Adds the ESP certificate bundle feature that enables users to bundle a
root certificate bundle together with their application.
Default bundle includes all Mozilla root certificates
Closes IDF-296
Pranav Sonawane
Marius Vikhammer
Espressif BOT
Ashish Sharma
Aditya Patwardhan
shenmengjing
shenmengjing
Linda
daiziyan
Shang Zhou
Ren Pei Ying