[ssl] Migrate to mbedtls 3 #290
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This means that mbedtls 3 is supported for dynamic builds
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Use MBEDTLS_USER_CONFIG_FILE instead of patching the sources.
In mbedtls 3.6 TLS 1.3 support is turned on by default which uses PSA crypto See HaxeFoundation/hashlink#681
Xenial went EoL in 2021, and we cannot build new mbedtls versions on it.
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| @@ -1,3 +1,4 @@ | |||
| #define WIN32_LEAN_AND_MEAN | |||
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Huh, I thought this define was to exclude some things. How does this "fix" anything?
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Later on after including threading_alt.h, mbedtls files go on to include other headers (presumably winsock2.h). But since the full windows.h has already been included, this results in re-definitions and compilation errors. By setting WIN32_LEAN_AND_MEAN, a lot of the unnecessary definitions are excluded from windows.h which avoids these conflicts later on.
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Hmm, I mean this is a good define to make regardless, I just find it strange that it's strictly necessary for compilation. But then again it probably won't matter. Thanks!
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It's just about the order of includes. Including windows.h in threading_alt.h like we do results in this ordering, which breaks compilation:
#include <windows.h> // threading_alt.h
// ...
#include <winsock2.h> // mbedtls sourcesSince at the time when windows.h is included we haven't included winsock2.h yet, windows.h includes winsock.h instead which contains conflicting definitions. Then when winsock2.h is included we get redefinition errors.
If WIN32_LEAN_AND_MEAN is defined, then winsock.h is excluded from windows.h so we don't end up with these redefinition errors when including winsock2.h.
More details here: https://stackoverflow.com/questions/21399650/cannot-include-both-files-winsock2-windows-h
Closes #252
Adapted from HaxeFoundation/hashlink#648