[PW_SID:793265] eap-mschapv2: allow using on kernels without CRYPTO_MD4, and deprecate

[IWDTestBot]

Currently eap-mschapv2 does kernel MD4 check during init time, even
though it is possible to use it with Password-Hash on kernels without
MD4.

Separately, mschapv2 is obsolete, deprecated, and removed even in
Windows 11 22H2 [1][2]. Add an error message stating so encouraging
migration to PEAP-TLS or EAP-TLS. Separately, warnings like these often
don't work, thus likely need to remove this authentication method
completely.

IWD usage of MD4 was brought up on linux-crypto mailing list [3], upon
my attempt to remove CRYPTO_MD4 from the kernel which is no longer used
via crypto API by anything else.

It worries me that internet searches suggest that EDUROAM (a Wi-FI
network spanning 106 territories) seems to still often use
mschapv2. Thus dropping this support may leave millions of people
without connectivity. Given how broken and isecure this authentication
method has been since 2012, I hope that EDUROAM is migrating, or has
migrated to P/EAP-TLS.

[1] https://learn.microsoft.com/en-us/security-updates/securityadvisories/2012/2743314
[2] https://learn.microsoft.com/en-us/windows/security/identity-protection/credential-guard/considerations-known-issues
[3] https://lore.kernel.org/linux-crypto/2e52c8b4-e70a-453f-853a-1962c8167dfa@gmail.com/

src/eap-mschapv2.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)

[IWDTestBot]

Fetch PR
Test ID: fetch
Desc: Fetch the PR commits for this CI run
Duration: 3.61 seconds
Result: PASS

Make Distcheck
Test ID: makedistcheck
Desc: Run distcheck to check the distribution
Duration: 12.22 seconds
Result: FAIL

Output:

make[2]: *** No rule to make target 'ell/sysctl.h', needed by 'distdir-am'.  Stop.
make[1]: *** [Makefile:3218: distdir] Error 2
make: *** [Makefile:3298: dist] Error 2

Build - Configure
Test ID: build
Desc: Configure the BlueZ source tree
Duration: 11.73 seconds
Result: PASS

Make Check
Test ID: makecheck
Desc: Run 'make check'
Duration: 0.00 seconds
Result: SKIP

Output:

makecheck was skipped

Make Check w/Valgrind
Test ID: makecheckvalgrind
Desc: Run 'make check' with Valgrind
Duration: 11.93 seconds
Result: FAIL

Output:

make[1]: *** No rule to make target 'ell/sysctl.c', needed by 'ell/sysctl.lo'.  Stop.
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:1710: all] Error 2

Incremental Build with patches
Test ID: incremental_build
Desc: Incremental build per patch in the series
Duration: 0.42 seconds
Result: PASS

[IWDTestBot]

Fetch PR
Test ID: fetch
Desc: Fetch the PR commits for this CI run
Duration: 2.72 seconds
Result: PASS

GitLint
Test ID: gitlint
Desc: Run gitlint with rule in .gitlint
Duration: 0.61 seconds
Result: FAIL

Output:

eap-mschapv2: allow using on kernels without CRYPTO_MD4, and deprecate
24: B1 Line exceeds max length (86>80): "[1] https://learn.microsoft.com/en-us/security-updates/securityadvisories/2012/2743314"
25: B1 Line exceeds max length (119>80): "[2] https://learn.microsoft.com/en-us/windows/security/identity-protection/credential-guard/considerations-known-issues"
26: B1 Line exceeds max length (88>80): "[3] https://lore.kernel.org/linux-crypto/2e52c8b4-e70a-453f-853a-1962c8167dfa@gmail.com/"

Make Distcheck
Test ID: makedistcheck
Desc: Run distcheck to check the distribution
Duration: 9.27 seconds
Result: FAIL

Output:

make[2]: *** No rule to make target 'ell/sysctl.h', needed by 'distdir-am'.  Stop.
make[1]: *** [Makefile:3217: distdir] Error 2
make: *** [Makefile:3297: dist] Error 2

Build - Configure
Test ID: build
Desc: Configure the BlueZ source tree
Duration: 41.09 seconds
Result: PASS

Make Check
Test ID: makecheck
Desc: Run 'make check'
Duration: 0.00 seconds
Result: SKIP

Output:

makecheck was skipped

Make Check w/Valgrind
Test ID: makecheckvalgrind
Desc: Run 'make check' with Valgrind
Duration: 42.29 seconds
Result: FAIL

Output:

make[1]: *** No rule to make target 'ell/sysctl.c', needed by 'ell/sysctl.lo'.  Stop.
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:1709: all] Error 2

Incremental Build with patches
Test ID: incremental_build
Desc: Incremental build per patch in the series
Duration: 0.61 seconds
Result: PASS

Autotest Runner
Test ID: testrunner
Desc: Runs IWD's autotest framework
Duration: 0.00 seconds
Result: SKIP

Output:

testrunner was skipped

Clang Build
Test ID: clang
Desc: Build IWD using clang compiler
Duration: 47.26 seconds
Result: FAIL

Output:

make[1]: *** No rule to make target 'ell/sysctl.c', needed by 'ell/sysctl.lo'.  Stop.
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:1709: all] Error 2