commit f2f4a4eee5a3979e8093bc6ffe713baa663a6437
author Frédéric Lécaille <flecaille@haproxy.com> Tue Apr 05 12:18:46 2022 +0200
committer Amaury Denoyelle <adenoyelle@haproxy.com> Fri Apr 08 15:38:29 2022 +0200
tree d846c914403ae4af586f0f0a86b0386fb8fd099e
parent f4605748f44dac766e910138813b76a0be9f3635

MINOR: quic_tls: Stop hardcoding cipher IV lengths

For QUIC AEAD usage, the number of bytes for the IVs is always 12.

src/quic_tls.c

diff --git a/src/quic_tls.c b/src/quic_tls.c
index cff461c..f8d11a3 100644
--- a/src/quic_tls.c
+++ b/src/quic_tls.c
@@ -317,7 +317,7 @@
 		return 0;
 
 	if (!EVP_DecryptInit_ex(ctx, aead, NULL, NULL, NULL) ||
-	    !EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_IVLEN, 12, NULL) ||
+	    !EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_IVLEN, QUIC_TLS_IV_LEN, NULL) ||
 	    (aead_nid == NID_aes_128_ccm &&
 	     !EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_TAG, QUIC_TLS_TAG_LEN, NULL)) ||
 	    !EVP_DecryptInit_ex(ctx, NULL, NULL, key, NULL))
@@ -346,7 +346,7 @@
 		return 0;
 
 	if (!EVP_EncryptInit_ex(ctx, aead, NULL, NULL, NULL) ||
-	    !EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_IVLEN, 12, NULL) ||
+	    !EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_IVLEN, QUIC_TLS_IV_LEN, NULL) ||
 	    (aead_nid == NID_aes_128_ccm &&
 	     !EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_TAG, QUIC_TLS_TAG_LEN, NULL)) ||
 	    !EVP_EncryptInit_ex(ctx, NULL, NULL, key, NULL))