openbsd: Allow using BearSSL for SHA512

1 files changed, 107 insertions, 0 deletions

diff --git a/pkg/openbsd/patch/0018-getentropy-Support-BearSSL-SHA512-implementation.patch b/pkg/openbsd/patch/0018-getentropy-Support-BearSSL-SHA512-implementation.patch
new file mode 100644
index 00000000..c50984ac
--- /dev/null
+++ b/pkg/openbsd/patch/0018-getentropy-Support-BearSSL-SHA512-implementation.patch
@@ -0,0 +1,107 @@
+From 2b0e36df23d26fe09ce3f21cff2ed6a4600aeb54 Mon Sep 17 00:00:00 2001
+From: Michael Forney <mforney@mforney.org>
+Date: Sat, 27 May 2017 18:49:33 -0700
+Subject: [PATCH] getentropy: Support BearSSL SHA512 implementation
+
+---
+ lib/libcrypto/arc4random/getentropy_linux.c | 33 ++++++++++++++++++++++++++++-
+ 1 file changed, 32 insertions(+), 1 deletion(-)
+
+diff --git a/lib/libcrypto/arc4random/getentropy_linux.c b/lib/libcrypto/arc4random/getentropy_linux.c
+index ac97658efe3..0a684ebd29f 100644
+--- a/lib/libcrypto/arc4random/getentropy_linux.c
++++ b/lib/libcrypto/arc4random/getentropy_linux.c
+@@ -47,7 +47,13 @@
+ #include <errno.h>
+ #include <unistd.h>
+ #include <time.h>
++#if defined(USE_OPENSSL)
+ #include <openssl/sha.h>
++#elif defined(USE_BEARSSL)
++#include <bearssl.h>
++#else
++#error "missing SHA512 implementation"
++#endif
+ 
+ #include <linux/types.h>
+ #include <linux/random.h>
+@@ -67,9 +73,15 @@
+ 			HD(b); \
+ 	} while (0)
+ 
++#if defined(USE_OPENSSL)
+ #define HR(x, l) (SHA512_Update(&ctx, (char *)(x), (l)))
+ #define HD(x)	 (SHA512_Update(&ctx, (char *)&(x), sizeof (x)))
+ #define HF(x)    (SHA512_Update(&ctx, (char *)&(x), sizeof (void*)))
++#elif defined(USE_BEARSSL)
++#define HR(x, l) (br_sha512_update(&ctx, (char *)(x), (l)))
++#define HD(x)	 (br_sha512_update(&ctx, (char *)&(x), sizeof (x)))
++#define HF(x)    (br_sha512_update(&ctx, (char *)&(x), sizeof (void*)))
++#endif
+ 
+ int	getentropy(void *buf, size_t len);
+ 
+@@ -327,16 +339,28 @@ static const int cl[] = {
+ static int
+ getentropy_phdr(struct dl_phdr_info *info, size_t size, void *data)
+ {
++#if defined(USE_OPENSSL)
+ 	SHA512_CTX *ctx = data;
+ 
+ 	SHA512_Update(ctx, &info->dlpi_addr, sizeof (info->dlpi_addr));
++#elif defined(USE_BEARSSL)
++	br_sha512_context *ctx = data;
++
++	br_sha512_update(ctx, &info->dlpi_addr, sizeof (info->dlpi_addr));
++#endif
+ 	return (0);
+ }
+ 
+ static int
+ getentropy_fallback(void *buf, size_t len)
+ {
++#if defined(USE_OPENSSL)
+ 	uint8_t results[SHA512_DIGEST_LENGTH];
++	SHA512_CTX ctx;
++#elif defined(USE_BEARSSL)
++	uint8_t results[br_sha512_SIZE];
++	br_sha512_context ctx;
++#endif
+ 	int save_errno = errno, e, pgs = getpagesize(), faster = 0, repeat;
+ 	static int cnt;
+ 	struct timespec ts;
+@@ -344,7 +368,6 @@ getentropy_fallback(void *buf, size_t len)
+ 	struct rusage ru;
+ 	sigset_t sigset;
+ 	struct stat st;
+-	SHA512_CTX ctx;
+ 	static pid_t lastpid;
+ 	pid_t pid;
+ 	size_t i, ii, m;
+@@ -361,7 +384,11 @@ getentropy_fallback(void *buf, size_t len)
+ 	}
+ 	for (i = 0; i < len; ) {
+ 		int j;
++#if defined(USE_OPENSSL)
+ 		SHA512_Init(&ctx);
++#elif defined(USE_BEARSSL)
++		br_sha512_init(&ctx);
++#endif
+ 		for (j = 0; j < repeat; j++) {
+ 			HX((e = gettimeofday(&tv, NULL)) == -1, tv);
+ 			if (e != -1) {
+@@ -532,7 +559,11 @@ getentropy_fallback(void *buf, size_t len)
+ #endif
+ #endif
+ 
++#if defined(USE_OPENSSL)
+ 		SHA512_Final(results, &ctx);
++#elif defined(USE_BEARSSL)
++		br_sha512_out(&ctx, results);
++#endif
+ 		memcpy((char *)buf + i, results, min(sizeof(results), len - i));
+ 		i += min(sizeof(results), len - i);
+ 	}
+-- 
+2.13.0
+