third_party: add boringssl, libtpms, swtpm
This isn't yet used, but will soon be used as the main swtpm
implementation (instead of whatever is provided by the ambient
environment and/or sandbox).
Change-Id: I8c8cc7fd7841f10e14d6390595805a8b905d4f4e
Reviewed-on: https://review.monogon.dev/c/monogon/+/3127
Reviewed-by: Lorenz Brun <lorenz@monogon.tech>
Tested-by: Jenkins CI
diff --git a/third_party/libtpms/patches/0003-boringssl-compat-removed-EC_POINTs_mul.patch b/third_party/libtpms/patches/0003-boringssl-compat-removed-EC_POINTs_mul.patch
new file mode 100644
index 0000000..8b5669a
--- /dev/null
+++ b/third_party/libtpms/patches/0003-boringssl-compat-removed-EC_POINTs_mul.patch
@@ -0,0 +1,42 @@
+From 2cd6a191b0940d03d557941eda3395bdafbdb662 Mon Sep 17 00:00:00 2001
+From: Serge Bazanski <serge@monogon.tech>
+Date: Tue, 4 Jun 2024 12:59:11 +0200
+Subject: [PATCH 3/6] boringssl compat: removed EC_POINTs_mul
+
+This was deprecated in OpenSSL 3.0, we just need to 'fix' the ifdef
+guard to use the undeprecated APIs.
+---
+ src/tpm2/crypto/openssl/BnToOsslMath.c | 10 ----------
+ 1 file changed, 10 deletions(-)
+
+diff --git a/src/tpm2/crypto/openssl/BnToOsslMath.c b/src/tpm2/crypto/openssl/BnToOsslMath.c
+index 1b9fb81..7d13ce8 100644
+--- a/src/tpm2/crypto/openssl/BnToOsslMath.c
++++ b/src/tpm2/crypto/openssl/BnToOsslMath.c
+@@ -622,7 +622,6 @@ LIB_EXPORT BOOL BnEccModMult2(bigPoint R, // OUT: computed point
+ EC_POINT_mul(E->G, pR, bnD, pQ, bnU, E->CTX);
+ else
+ {
+-#if OPENSSL_VERSION_NUMBER >= 0x30000000L
+ EC_POINT *pR1 = EC_POINT_new(E->G);
+ EC_POINT *pR2 = EC_POINT_new(E->G);
+ int OK;
+@@ -635,15 +634,6 @@ LIB_EXPORT BOOL BnEccModMult2(bigPoint R, // OUT: computed point
+
+ EC_POINT_clear_free(pR1);
+ EC_POINT_clear_free(pR2);
+-#else
+- const EC_POINT* points[2];
+- const BIGNUM* scalars[2];
+- points[0] = pS;
+- points[1] = pQ;
+- scalars[0] = bnD;
+- scalars[1] = bnU;
+- EC_POINTs_mul(E->G, pR, NULL, 2, points, scalars, E->CTX);
+-#endif
+ }
+ PointFromOssl(R, pR, E);
+ EC_POINT_clear_free(pR); // libtpms changed
+--
+2.42.0
+