Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 307 insertions, 0 deletions

diff --git a/arch/arm64/crypto/sm4-ce-ccm-glue.c b/arch/arm64/crypto/sm4-ce-ccm-glue.c
new file mode 100644
index 000000000..5e7e17bbe
--- /dev/null
+++ b/arch/arm64/crypto/sm4-ce-ccm-glue.c
@@ -0,0 +1,307 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * SM4-CCM AEAD Algorithm using ARMv8 Crypto Extensions
+ * as specified in rfc8998
+ * https://datatracker.ietf.org/doc/html/rfc8998
+ *
+ * Copyright (C) 2022 Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
+ */
+
+#include <linux/module.h>
+#include <linux/crypto.h>
+#include <linux/kernel.h>
+#include <linux/cpufeature.h>
+#include <asm/neon.h>
+#include <crypto/scatterwalk.h>
+#include <crypto/internal/aead.h>
+#include <crypto/internal/skcipher.h>
+#include <crypto/sm4.h>
+#include "sm4-ce.h"
+
+asmlinkage void sm4_ce_cbcmac_update(const u32 *rkey_enc, u8 *mac,
+				     const u8 *src, unsigned int nblocks);
+asmlinkage void sm4_ce_ccm_enc(const u32 *rkey_enc, u8 *dst, const u8 *src,
+			       u8 *iv, unsigned int nbytes, u8 *mac);
+asmlinkage void sm4_ce_ccm_dec(const u32 *rkey_enc, u8 *dst, const u8 *src,
+			       u8 *iv, unsigned int nbytes, u8 *mac);
+asmlinkage void sm4_ce_ccm_final(const u32 *rkey_enc, u8 *iv, u8 *mac);
+
+
+static int ccm_setkey(struct crypto_aead *tfm, const u8 *key,
+		      unsigned int key_len)
+{
+	struct sm4_ctx *ctx = crypto_aead_ctx(tfm);
+
+	if (key_len != SM4_KEY_SIZE)
+		return -EINVAL;
+
+	kernel_neon_begin();
+	sm4_ce_expand_key(key, ctx->rkey_enc, ctx->rkey_dec,
+			  crypto_sm4_fk, crypto_sm4_ck);
+	kernel_neon_end();
+
+	return 0;
+}
+
+static int ccm_setauthsize(struct crypto_aead *tfm, unsigned int authsize)
+{
+	if ((authsize & 1) || authsize < 4)
+		return -EINVAL;
+	return 0;
+}
+
+static int ccm_format_input(u8 info[], struct aead_request *req,
+			    unsigned int msglen)
+{
+	struct crypto_aead *aead = crypto_aead_reqtfm(req);
+	unsigned int l = req->iv[0] + 1;
+	unsigned int m;
+	__be32 len;
+
+	/* verify that CCM dimension 'L': 2 <= L <= 8 */
+	if (l < 2 || l > 8)
+		return -EINVAL;
+	if (l < 4 && msglen >> (8 * l))
+		return -EOVERFLOW;
+
+	memset(&req->iv[SM4_BLOCK_SIZE - l], 0, l);
+
+	memcpy(info, req->iv, SM4_BLOCK_SIZE);
+
+	m = crypto_aead_authsize(aead);
+
+	/* format flags field per RFC 3610/NIST 800-38C */
+	*info |= ((m - 2) / 2) << 3;
+	if (req->assoclen)
+		*info |= (1 << 6);
+
+	/*
+	 * format message length field,
+	 * Linux uses a u32 type to represent msglen
+	 */
+	if (l >= 4)
+		l = 4;
+
+	len = cpu_to_be32(msglen);
+	memcpy(&info[SM4_BLOCK_SIZE - l], (u8 *)&len + 4 - l, l);
+
+	return 0;
+}
+
+static void ccm_calculate_auth_mac(struct aead_request *req, u8 mac[])
+{
+	struct crypto_aead *aead = crypto_aead_reqtfm(req);
+	struct sm4_ctx *ctx = crypto_aead_ctx(aead);
+	struct __packed { __be16 l; __be32 h; } aadlen;
+	u32 assoclen = req->assoclen;
+	struct scatter_walk walk;
+	unsigned int len;
+
+	if (assoclen < 0xff00) {
+		aadlen.l = cpu_to_be16(assoclen);
+		len = 2;
+	} else {
+		aadlen.l = cpu_to_be16(0xfffe);
+		put_unaligned_be32(assoclen, &aadlen.h);
+		len = 6;
+	}
+
+	sm4_ce_crypt_block(ctx->rkey_enc, mac, mac);
+	crypto_xor(mac, (const u8 *)&aadlen, len);
+
+	scatterwalk_start(&walk, req->src);
+
+	do {
+		u32 n = scatterwalk_clamp(&walk, assoclen);
+		u8 *p, *ptr;
+
+		if (!n) {
+			scatterwalk_start(&walk, sg_next(walk.sg));
+			n = scatterwalk_clamp(&walk, assoclen);
+		}
+
+		p = ptr = scatterwalk_map(&walk);
+		assoclen -= n;
+		scatterwalk_advance(&walk, n);
+
+		while (n > 0) {
+			unsigned int l, nblocks;
+
+			if (len == SM4_BLOCK_SIZE) {
+				if (n < SM4_BLOCK_SIZE) {
+					sm4_ce_crypt_block(ctx->rkey_enc,
+							   mac, mac);
+
+					len = 0;
+				} else {
+					nblocks = n / SM4_BLOCK_SIZE;
+					sm4_ce_cbcmac_update(ctx->rkey_enc,
+							     mac, ptr, nblocks);
+
+					ptr += nblocks * SM4_BLOCK_SIZE;
+					n %= SM4_BLOCK_SIZE;
+
+					continue;
+				}
+			}
+
+			l = min(n, SM4_BLOCK_SIZE - len);
+			if (l) {
+				crypto_xor(mac + len, ptr, l);
+				len += l;
+				ptr += l;
+				n -= l;
+			}
+		}
+
+		scatterwalk_unmap(p);
+		scatterwalk_done(&walk, 0, assoclen);
+	} while (assoclen);
+}
+
+static int ccm_crypt(struct aead_request *req, struct skcipher_walk *walk,
+		     u32 *rkey_enc, u8 mac[],
+		     void (*sm4_ce_ccm_crypt)(const u32 *rkey_enc, u8 *dst,
+					const u8 *src, u8 *iv,
+					unsigned int nbytes, u8 *mac))
+{
+	u8 __aligned(8) ctr0[SM4_BLOCK_SIZE];
+	int err = 0;
+
+	/* preserve the initial ctr0 for the TAG */
+	memcpy(ctr0, walk->iv, SM4_BLOCK_SIZE);
+	crypto_inc(walk->iv, SM4_BLOCK_SIZE);
+
+	kernel_neon_begin();
+
+	if (req->assoclen)
+		ccm_calculate_auth_mac(req, mac);
+
+	while (walk->nbytes && walk->nbytes != walk->total) {
+		unsigned int tail = walk->nbytes % SM4_BLOCK_SIZE;
+
+		sm4_ce_ccm_crypt(rkey_enc, walk->dst.virt.addr,
+				 walk->src.virt.addr, walk->iv,
+				 walk->nbytes - tail, mac);
+
+		kernel_neon_end();
+
+		err = skcipher_walk_done(walk, tail);
+
+		kernel_neon_begin();
+	}
+
+	if (walk->nbytes) {
+		sm4_ce_ccm_crypt(rkey_enc, walk->dst.virt.addr,
+				 walk->src.virt.addr, walk->iv,
+				 walk->nbytes, mac);
+
+		sm4_ce_ccm_final(rkey_enc, ctr0, mac);
+
+		kernel_neon_end();
+
+		err = skcipher_walk_done(walk, 0);
+	} else {
+		sm4_ce_ccm_final(rkey_enc, ctr0, mac);
+
+		kernel_neon_end();
+	}
+
+	return err;
+}
+
+static int ccm_encrypt(struct aead_request *req)
+{
+	struct crypto_aead *aead = crypto_aead_reqtfm(req);
+	struct sm4_ctx *ctx = crypto_aead_ctx(aead);
+	u8 __aligned(8) mac[SM4_BLOCK_SIZE];
+	struct skcipher_walk walk;
+	int err;
+
+	err = ccm_format_input(mac, req, req->cryptlen);
+	if (err)
+		return err;
+
+	err = skcipher_walk_aead_encrypt(&walk, req, false);
+	if (err)
+		return err;
+
+	err = ccm_crypt(req, &walk, ctx->rkey_enc, mac, sm4_ce_ccm_enc);
+	if (err)
+		return err;
+
+	/* copy authtag to end of dst */
+	scatterwalk_map_and_copy(mac, req->dst, req->assoclen + req->cryptlen,
+				 crypto_aead_authsize(aead), 1);
+
+	return 0;
+}
+
+static int ccm_decrypt(struct aead_request *req)
+{
+	struct crypto_aead *aead = crypto_aead_reqtfm(req);
+	unsigned int authsize = crypto_aead_authsize(aead);
+	struct sm4_ctx *ctx = crypto_aead_ctx(aead);
+	u8 __aligned(8) mac[SM4_BLOCK_SIZE];
+	u8 authtag[SM4_BLOCK_SIZE];
+	struct skcipher_walk walk;
+	int err;
+
+	err = ccm_format_input(mac, req, req->cryptlen - authsize);
+	if (err)
+		return err;
+
+	err = skcipher_walk_aead_decrypt(&walk, req, false);
+	if (err)
+		return err;
+
+	err = ccm_crypt(req, &walk, ctx->rkey_enc, mac, sm4_ce_ccm_dec);
+	if (err)
+		return err;
+
+	/* compare calculated auth tag with the stored one */
+	scatterwalk_map_and_copy(authtag, req->src,
+				 req->assoclen + req->cryptlen - authsize,
+				 authsize, 0);
+
+	if (crypto_memneq(authtag, mac, authsize))
+		return -EBADMSG;
+
+	return 0;
+}
+
+static struct aead_alg sm4_ccm_alg = {
+	.base = {
+		.cra_name		= "ccm(sm4)",
+		.cra_driver_name	= "ccm-sm4-ce",
+		.cra_priority		= 400,
+		.cra_blocksize		= 1,
+		.cra_ctxsize		= sizeof(struct sm4_ctx),
+		.cra_module		= THIS_MODULE,
+	},
+	.ivsize		= SM4_BLOCK_SIZE,
+	.chunksize	= SM4_BLOCK_SIZE,
+	.maxauthsize	= SM4_BLOCK_SIZE,
+	.setkey		= ccm_setkey,
+	.setauthsize	= ccm_setauthsize,
+	.encrypt	= ccm_encrypt,
+	.decrypt	= ccm_decrypt,
+};
+
+static int __init sm4_ce_ccm_init(void)
+{
+	return crypto_register_aead(&sm4_ccm_alg);
+}
+
+static void __exit sm4_ce_ccm_exit(void)
+{
+	crypto_unregister_aead(&sm4_ccm_alg);
+}
+
+module_cpu_feature_match(SM4, sm4_ce_ccm_init);
+module_exit(sm4_ce_ccm_exit);
+
+MODULE_DESCRIPTION("Synchronous SM4 in CCM mode using ARMv8 Crypto Extensions");
+MODULE_ALIAS_CRYPTO("ccm(sm4)");
+MODULE_AUTHOR("Tianjia Zhang <tianjia.zhang@linux.alibaba.com>");
+MODULE_LICENSE("GPL v2");