From d544b53cb0b6bc25f2ba078bd9c07e611095bf29 Mon Sep 17 00:00:00 2001
From: "Bjoern A. Zeeb" <bz@FreeBSD.org>
Date: Thu, 11 May 2023 22:19:57 +0000
Subject: [PATCH] LinuxKPI: add dummy hash.h and kernel_connect()

Add crypto/hash.h and a dummy kernel_connect() needed to compile
the ath11k wireless driver.  While I hope we will not actually need
the hash.h fallbacks, kernel_connect() we will have to deal with once
we sort out more QMI bits.

MFC after:	10 days
---
 .../linuxkpi/common/include/crypto/hash.h     | 94 +++++++++++++++++++
 .../linuxkpi/common/include/linux/socket.h    | 11 +++
 2 files changed, 105 insertions(+)
 create mode 100644 sys/compat/linuxkpi/common/include/crypto/hash.h

diff --git a/sys/compat/linuxkpi/common/include/crypto/hash.h b/sys/compat/linuxkpi/common/include/crypto/hash.h
new file mode 100644
index 000000000000..bf401691722a
--- /dev/null
+++ b/sys/compat/linuxkpi/common/include/crypto/hash.h
@@ -0,0 +1,94 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2022 Bjoern A. Zeeb
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _LINUXKPI_CRYPTO_HASH_H
+#define _LINUXKPI_CRYPTO_HASH_H
+
+#include <linux/kernel.h>	/* for pr_debug */
+
+struct crypto_shash {
+};
+
+struct shash_desc {
+	struct crypto_shash	*tfm;
+};
+
+static inline struct crypto_shash *
+crypto_alloc_shash(const char *algostr, int x, int y)
+{
+
+	pr_debug("%s: TODO\n", __func__);
+	return (NULL);
+}
+
+static inline void
+crypto_free_shash(struct crypto_shash *csh)
+{
+	pr_debug("%s: TODO\n", __func__);
+}
+
+static inline int
+crypto_shash_init(struct shash_desc *desc)
+{
+	pr_debug("%s: TODO\n", __func__);
+	return (-ENXIO);
+}
+
+static inline int
+crypto_shash_final(struct shash_desc *desc, uint8_t *mic)
+{
+	pr_debug("%s: TODO\n", __func__);
+	return (-ENXIO);
+}
+
+static inline int
+crypto_shash_setkey(struct crypto_shash *csh, const uint8_t *key, size_t keylen)
+{
+	pr_debug("%s: TODO\n", __func__);
+	return (-ENXIO);
+}
+
+static inline int
+crypto_shash_update(struct shash_desc *desc, uint8_t *data, size_t datalen)
+{
+	pr_debug("%s: TODO\n", __func__);
+	return (-ENXIO);
+}
+
+static inline void
+shash_desc_zero(struct shash_desc *desc)
+{
+
+	explicit_bzero(desc, sizeof(*desc));
+}
+
+/* XXX review this. */
+#define	SHASH_DESC_ON_STACK(desc, tfm)					\
+	uint8_t ___ ## desc ## _desc[sizeof(struct shash_desc)];	\
+	struct shash_desc *desc = (struct shash_desc *)___ ## desc ## _desc
+
+#endif /* _LINUXKPI_CRYPTO_HASH_H */
diff --git a/sys/compat/linuxkpi/common/include/linux/socket.h b/sys/compat/linuxkpi/common/include/linux/socket.h
index 3afb9bdfe3ba..8818971fa4c7 100644
--- a/sys/compat/linuxkpi/common/include/linux/socket.h
+++ b/sys/compat/linuxkpi/common/include/linux/socket.h
@@ -33,6 +33,17 @@
 
 #include <sys/socket.h>
 
+#define	AF_QIPCRTR			42
+
+static inline int
+kernel_connect(int sd, struct sockaddr *sa, size_t salen, int flags)
+{
+
+	/* kern_connectat()? It is used for sockaddr_qrtr by ath1xk/qmi. */
+	pr_debug("%s: TODO\n", __func__);
+	return (-EINVAL);
+}
+
 #ifdef notyet
 static inline int
 memcpy_toiovec(struct iovec *v, unsigned char *kdata, int len)