curl/lib/vtls
Viktor Szakats 923db3515d
schannel: not supported with UWP, drop redundant code
Schannel is not supported by UWP. SSPI is also required by Schannel in
curl, and SSPI also isn't supported by UWP.

mingw-w64 is able to create such build regardless (my guess: due to API
parts not accurately marked as UWP-only), but the binary is unlikely
to work. With MSVC the failure happens at build-time.

Ref: https://learn.microsoft.com/windows/win32/api/sspi/nf-sspi-initsecurityinterfacea#requirements
Ref: https://learn.microsoft.com/windows/win32/secauthn/initializesecuritycontext--schannel#requirements

Drop all UWP-related logic, including two related feature checks, that
can now be permanently enabled.

Also:
- build: show fatal error for Schannel in UWP mode.
- build: do not allow enabling SSPI in UWP mode.
- drop undocumented option `DISABLE_SCHANNEL_CLIENT_CERT`. Added without
  mention in an unrelated commit. The PR text says to save size. On x64
  this is 0.3%, or 4KB out of 1.3MB. The tiny gain doesn't justify
  an extra build variant. Ref: 8beff43559
- move `MPROTO_SCHANNEL_CERT_SHARE_KEY` closer to its use.
- replace commented block with `#if 0`.

Reviewed-by: Jay Satiro
Follow-up to cd0ec4784c #17089
Closes #18116
2025-07-31 20:05:32 +02:00
..
.checksrc checksrc: reduce exceptions, apply again to curlx 2025-06-27 17:33:35 +02:00
cipher_suite.c tidy-up: prefer ifdef/ifndef for single checks 2025-07-27 22:35:17 +02:00
cipher_suite.h TLS: remove support for Secure Transport and BearSSL 2025-06-11 07:54:19 +02:00
gtls.c tidy-up: prefer ifdef/ifndef for single checks 2025-07-27 22:35:17 +02:00
gtls.h http/3: report handshake with version and cipher as for TCP connections 2025-07-14 14:08:32 +02:00
hostcheck.c tidy-up: more whitespace/indent, comments 2025-07-25 11:47:51 +02:00
hostcheck.h openssl: some small cleanups 2025-07-18 00:40:26 +02:00
keylog.c urlapi: use uppercase hex encoding 2025-06-25 11:44:13 +02:00
keylog.h spelling: 'a' vs 'an' 2025-05-30 11:38:35 +02:00
mbedtls.c tidy-up: prefer ifdef/ifndef for single checks 2025-07-27 22:35:17 +02:00
mbedtls.h lib: include files using known path 2025-04-08 17:00:00 +02:00
mbedtls_threadlock.c lib: include files using known path 2025-04-08 17:00:00 +02:00
mbedtls_threadlock.h lib: include files using known path 2025-04-08 17:00:00 +02:00
openssl.c openssl: split cert_stuff into smaller sub functions 2025-07-30 09:12:10 +02:00
openssl.h openssl: some small cleanups 2025-07-18 00:40:26 +02:00
rustls.c tidy-up: prefer ifdef/ifndef for single checks 2025-07-27 22:35:17 +02:00
rustls.h lib: include files using known path 2025-04-08 17:00:00 +02:00
schannel.c schannel: not supported with UWP, drop redundant code 2025-07-31 20:05:32 +02:00
schannel.h tidy-up: prefer ifdef/ifndef for single checks 2025-07-27 22:35:17 +02:00
schannel_int.h schannel: not supported with UWP, drop redundant code 2025-07-31 20:05:32 +02:00
schannel_verify.c schannel: not supported with UWP, drop redundant code 2025-07-31 20:05:32 +02:00
vtls.c alpn: query filter 2025-07-28 14:04:31 +02:00
vtls.h tidy-up: whitespace 2025-07-11 13:32:54 +02:00
vtls_int.h vtls: change send/recv signatures of tls backends 2025-06-21 10:34:02 +02:00
vtls_scache.c tidy-up: whitespace 2025-07-11 13:32:54 +02:00
vtls_scache.h lib: replace scache no-op macros with #ifdef 2025-06-27 17:33:34 +02:00
vtls_spack.c build: fix build errors/warnings in rare configurations 2025-07-23 22:17:03 +02:00
vtls_spack.h build: fix build errors/warnings in rare configurations 2025-07-23 22:17:03 +02:00
wolfssl.c tidy-up: prefer ifdef/ifndef for single checks 2025-07-27 22:35:17 +02:00
wolfssl.h GHA/checksrc: expand spellcheck, fix issues found 2025-07-21 16:09:01 +02:00
x509asn1.c misc: fix typos 2025-07-12 08:59:44 +02:00
x509asn1.h TLS: remove support for Secure Transport and BearSSL 2025-06-11 07:54:19 +02:00