nginx: QUIC: Fix SSL 3.0 deprecated function

[qosmio]

EVP_CIPHER_CTX_cipher() function was deprecated in OpenSSL 3.0. As per OpenSSL's recommendation (https://www.openssl.org/docs/manmaster/man3/EVP_CIPHER_CTX_get0_cipher.html) switch to using EVP_CIPHER_CTX_get0_cipher() instead.

This would remedy the following:

  -L/data/code/openwrt/ipq/staging_dir/target-aarch64_cortex-a53_musl/usr/lib -L/data/code/openwrt/ipq/staging_dir/toolchain-aarch64_cortex-a53_gcc-13.2.0_musl/usr/lib -L/data/code/openwr  t/ipq/staging_dir/toolchain-aarch64_cortex-a53_gcc-13.2.0_musl/lib -fuse-ld=mold -Wl,--gc-sections -flto=auto -fuse-linker-plugin -zrelro \
  -shared
  mold: error: undefined symbol: EVP_CIPHER_CTX_cipher
  >>> referenced by <artificial>
  >>>               /data/code/openwrt/ipq/tmp/ccBL6cZK.ltrans24.ltrans.o:(ngx_quic_crypto_common.isra.0)>>> referenced by <artificial>
  >>>               /data/code/openwrt/ipq/tmp/ccBL6cZK.ltrans24.ltrans.o:(ngx_quic_crypto_common.isra.0)
  collect2: error: ld returned 1 exit status
  make[4]: *** [objs/Makefile:325: objs/nginx] Error 1

With this change and recent commit to nginx-util #23935. We should now be able to build nginx + modules with fully compliant calls to OpenSSL 3.0+, with legacy features disabled.

Run tested: aarch64, Dynalink DL-WRX36, Master Branch
Maintainer: Thomas Heil heil@terminal-consulting.de, Christian Marangi ansuelsmth@gmail.com

[Ansuel]

@qosmio did we check if nginx already doesn't have this fix in some dev branch? Also can we think of proposing this fix to nginx mailing list?

[qosmio]

That's actually a good idea. I haven't submitted patches upstream, mostly due to NGINX team using Mercurial and patchbomb, neither of which I'm too familiar.

I'll take a stab at it though.

[Ansuel]

@qosmio keep me informed... i also remember sending a patch but i lost track of it.

[Ansuel]

@qosmio I checked how to send patch and it's not that hard...

the command i had to follow
sudo apt install mercurial
Follow https://wiki.mercurial-scm.org/QuickStart to fill the .hgrc

hg clone http://hg.nginx.org/nginx
cd nginx

make changes

hg commit
(same format of git commit... first line title... white line and then description... no SoB)

Follow https://wiki.mercurial-scm.org/PatchbombExtension for patchbomb (yes it's correct adding the
empty entry for patchbomb)

hg email -o 

Send the mail to yourself first to make sure everything is OK.

[Ansuel]

@qosmio can you refresh patch and also bump the nginx package?

[qosmio]

Sorry I didn't get a chance to reply before. Will clean up and increment the build today. UPDATE: Done!