Update Linux to v5.10.109
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz
Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/net/tipc/crypto.h b/net/tipc/crypto.h
new file mode 100644
index 0000000..e71193b
--- /dev/null
+++ b/net/tipc/crypto.h
@@ -0,0 +1,200 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/**
+ * net/tipc/crypto.h: Include file for TIPC crypto
+ *
+ * Copyright (c) 2019, Ericsson AB
+ * All rights reserved.
+ *
+ * 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.
+ * 3. Neither the names of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
+ */
+#ifdef CONFIG_TIPC_CRYPTO
+#ifndef _TIPC_CRYPTO_H
+#define _TIPC_CRYPTO_H
+
+#include "core.h"
+#include "node.h"
+#include "msg.h"
+#include "bearer.h"
+
+#define TIPC_EVERSION 7
+
+/* AEAD aes(gcm) */
+#define TIPC_AES_GCM_KEY_SIZE_128 16
+#define TIPC_AES_GCM_KEY_SIZE_192 24
+#define TIPC_AES_GCM_KEY_SIZE_256 32
+
+#define TIPC_AES_GCM_SALT_SIZE 4
+#define TIPC_AES_GCM_IV_SIZE 12
+#define TIPC_AES_GCM_TAG_SIZE 16
+
+/**
+ * TIPC crypto modes:
+ * - CLUSTER_KEY:
+ * One single key is used for both TX & RX in all nodes in the cluster.
+ * - PER_NODE_KEY:
+ * Each nodes in the cluster has one TX key, for RX a node needs to know
+ * its peers' TX key for the decryption of messages from those nodes.
+ */
+enum {
+ CLUSTER_KEY = 1,
+ PER_NODE_KEY = (1 << 1),
+};
+
+extern int sysctl_tipc_max_tfms __read_mostly;
+extern int sysctl_tipc_key_exchange_enabled __read_mostly;
+
+/**
+ * TIPC encryption message format:
+ *
+ * 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0
+ * 1 0 9 8 7 6 5 4|3 2 1 0 9 8 7 6|5 4 3 2 1 0 9 8|7 6 5 4 3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * w0:|Ver=7| User |D|TX |RX |K|M|N| Rsvd |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * w1:| Seqno |
+ * w2:| (8 octets) |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * w3:\ Prevnode \
+ * / (4 or 16 octets) /
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * \ \
+ * / Encrypted complete TIPC V2 header and user data /
+ * \ \
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | |
+ * | AuthTag |
+ * | (16 octets) |
+ * | |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ * Word0:
+ * Ver : = 7 i.e. TIPC encryption message version
+ * User : = 7 (for LINK_PROTOCOL); = 13 (for LINK_CONFIG) or = 0
+ * D : The destined bit i.e. the message's destination node is
+ * "known" or not at the message encryption
+ * TX : TX key used for the message encryption
+ * RX : Currently RX active key corresponding to the destination
+ * node's TX key (when the "D" bit is set)
+ * K : Keep-alive bit (for RPS, LINK_PROTOCOL/STATE_MSG only)
+ * M : Bit indicates if sender has master key
+ * N : Bit indicates if sender has no RX keys corresponding to the
+ * receiver's TX (when the "D" bit is set)
+ * Rsvd : Reserved bit, field
+ * Word1-2:
+ * Seqno : The 64-bit sequence number of the encrypted message, also
+ * part of the nonce used for the message encryption/decryption
+ * Word3-:
+ * Prevnode: The source node address, or ID in case LINK_CONFIG only
+ * AuthTag : The authentication tag for the message integrity checking
+ * generated by the message encryption
+ */
+struct tipc_ehdr {
+ union {
+ struct {
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+ __u8 destined:1,
+ user:4,
+ version:3;
+ __u8 reserved_1:1,
+ rx_nokey:1,
+ master_key:1,
+ keepalive:1,
+ rx_key_active:2,
+ tx_key:2;
+#elif defined(__BIG_ENDIAN_BITFIELD)
+ __u8 version:3,
+ user:4,
+ destined:1;
+ __u8 tx_key:2,
+ rx_key_active:2,
+ keepalive:1,
+ master_key:1,
+ rx_nokey:1,
+ reserved_1:1;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+ __be16 reserved_2;
+ } __packed;
+ __be32 w0;
+ };
+ __be64 seqno;
+ union {
+ __be32 addr;
+ __u8 id[NODE_ID_LEN]; /* For a LINK_CONFIG message only! */
+ };
+#define EHDR_SIZE (offsetof(struct tipc_ehdr, addr) + sizeof(__be32))
+#define EHDR_CFG_SIZE (sizeof(struct tipc_ehdr))
+#define EHDR_MIN_SIZE (EHDR_SIZE)
+#define EHDR_MAX_SIZE (EHDR_CFG_SIZE)
+#define EMSG_OVERHEAD (EHDR_SIZE + TIPC_AES_GCM_TAG_SIZE)
+} __packed;
+
+int tipc_crypto_start(struct tipc_crypto **crypto, struct net *net,
+ struct tipc_node *node);
+void tipc_crypto_stop(struct tipc_crypto **crypto);
+void tipc_crypto_timeout(struct tipc_crypto *rx);
+int tipc_crypto_xmit(struct net *net, struct sk_buff **skb,
+ struct tipc_bearer *b, struct tipc_media_addr *dst,
+ struct tipc_node *__dnode);
+int tipc_crypto_rcv(struct net *net, struct tipc_crypto *rx,
+ struct sk_buff **skb, struct tipc_bearer *b);
+int tipc_crypto_key_init(struct tipc_crypto *c, struct tipc_aead_key *ukey,
+ u8 mode, bool master_key);
+void tipc_crypto_key_flush(struct tipc_crypto *c);
+int tipc_crypto_key_distr(struct tipc_crypto *tx, u8 key,
+ struct tipc_node *dest);
+void tipc_crypto_msg_rcv(struct net *net, struct sk_buff *skb);
+void tipc_crypto_rekeying_sched(struct tipc_crypto *tx, bool changed,
+ u32 new_intv);
+int tipc_aead_key_validate(struct tipc_aead_key *ukey, struct genl_info *info);
+bool tipc_ehdr_validate(struct sk_buff *skb);
+
+static inline u32 msg_key_gen(struct tipc_msg *m)
+{
+ return msg_bits(m, 4, 16, 0xffff);
+}
+
+static inline void msg_set_key_gen(struct tipc_msg *m, u32 gen)
+{
+ msg_set_bits(m, 4, 16, 0xffff, gen);
+}
+
+static inline u32 msg_key_mode(struct tipc_msg *m)
+{
+ return msg_bits(m, 4, 0, 0xf);
+}
+
+static inline void msg_set_key_mode(struct tipc_msg *m, u32 mode)
+{
+ msg_set_bits(m, 4, 0, 0xf, mode);
+}
+
+#endif /* _TIPC_CRYPTO_H */
+#endif