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, 320 insertions, 0 deletions

diff --git a/crypto/keywrap.c b/crypto/keywrap.c
new file mode 100644
index 000000000..054d9a216
--- /dev/null
+++ b/crypto/keywrap.c
@@ -0,0 +1,320 @@
+/*
+ * Key Wrapping: RFC3394 / NIST SP800-38F
+ *
+ * Copyright (C) 2015, Stephan Mueller <smueller@chronox.de>
+ *
+ * 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, and the entire permission notice in its entirety,
+ *    including the disclaimer of warranties.
+ * 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. The name of the author may not be used to endorse or promote
+ *    products derived from this software without specific prior
+ *    written permission.
+ *
+ * ALTERNATIVELY, this product may be distributed under the terms of
+ * the GNU General Public License, in which case the provisions of the GPL2
+ * are required INSTEAD OF the above restrictions.  (This clause is
+ * necessary due to a potential bad interaction between the GPL and
+ * the restrictions contained in a BSD-style copyright.)
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
+ * WHICH ARE HEREBY DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR 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 NOT ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ */
+
+/*
+ * Note for using key wrapping:
+ *
+ *	* The result of the encryption operation is the ciphertext starting
+ *	  with the 2nd semiblock. The first semiblock is provided as the IV.
+ *	  The IV used to start the encryption operation is the default IV.
+ *
+ *	* The input for the decryption is the first semiblock handed in as an
+ *	  IV. The ciphertext is the data starting with the 2nd semiblock. The
+ *	  return code of the decryption operation will be EBADMSG in case an
+ *	  integrity error occurs.
+ *
+ * To obtain the full result of an encryption as expected by SP800-38F, the
+ * caller must allocate a buffer of plaintext + 8 bytes:
+ *
+ *	unsigned int datalen = ptlen + crypto_skcipher_ivsize(tfm);
+ *	u8 data[datalen];
+ *	u8 *iv = data;
+ *	u8 *pt = data + crypto_skcipher_ivsize(tfm);
+ *		<ensure that pt contains the plaintext of size ptlen>
+ *	sg_init_one(&sg, pt, ptlen);
+ *	skcipher_request_set_crypt(req, &sg, &sg, ptlen, iv);
+ *
+ *	==> After encryption, data now contains full KW result as per SP800-38F.
+ *
+ * In case of decryption, ciphertext now already has the expected length
+ * and must be segmented appropriately:
+ *
+ *	unsigned int datalen = CTLEN;
+ *	u8 data[datalen];
+ *		<ensure that data contains full ciphertext>
+ *	u8 *iv = data;
+ *	u8 *ct = data + crypto_skcipher_ivsize(tfm);
+ *	unsigned int ctlen = datalen - crypto_skcipher_ivsize(tfm);
+ *	sg_init_one(&sg, ct, ctlen);
+ *	skcipher_request_set_crypt(req, &sg, &sg, ctlen, iv);
+ *
+ *	==> After decryption (which hopefully does not return EBADMSG), the ct
+ *	pointer now points to the plaintext of size ctlen.
+ *
+ * Note 2: KWP is not implemented as this would defy in-place operation.
+ *	   If somebody wants to wrap non-aligned data, he should simply pad
+ *	   the input with zeros to fill it up to the 8 byte boundary.
+ */
+
+#include <linux/module.h>
+#include <linux/crypto.h>
+#include <linux/scatterlist.h>
+#include <crypto/scatterwalk.h>
+#include <crypto/internal/cipher.h>
+#include <crypto/internal/skcipher.h>
+
+struct crypto_kw_block {
+#define SEMIBSIZE 8
+	__be64 A;
+	__be64 R;
+};
+
+/*
+ * Fast forward the SGL to the "end" length minus SEMIBSIZE.
+ * The start in the SGL defined by the fast-forward is returned with
+ * the walk variable
+ */
+static void crypto_kw_scatterlist_ff(struct scatter_walk *walk,
+				     struct scatterlist *sg,
+				     unsigned int end)
+{
+	unsigned int skip = 0;
+
+	/* The caller should only operate on full SEMIBLOCKs. */
+	BUG_ON(end < SEMIBSIZE);
+
+	skip = end - SEMIBSIZE;
+	while (sg) {
+		if (sg->length > skip) {
+			scatterwalk_start(walk, sg);
+			scatterwalk_advance(walk, skip);
+			break;
+		}
+
+		skip -= sg->length;
+		sg = sg_next(sg);
+	}
+}
+
+static int crypto_kw_decrypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct crypto_cipher *cipher = skcipher_cipher_simple(tfm);
+	struct crypto_kw_block block;
+	struct scatterlist *src, *dst;
+	u64 t = 6 * ((req->cryptlen) >> 3);
+	unsigned int i;
+	int ret = 0;
+
+	/*
+	 * Require at least 2 semiblocks (note, the 3rd semiblock that is
+	 * required by SP800-38F is the IV.
+	 */
+	if (req->cryptlen < (2 * SEMIBSIZE) || req->cryptlen % SEMIBSIZE)
+		return -EINVAL;
+
+	/* Place the IV into block A */
+	memcpy(&block.A, req->iv, SEMIBSIZE);
+
+	/*
+	 * src scatterlist is read-only. dst scatterlist is r/w. During the
+	 * first loop, src points to req->src and dst to req->dst. For any
+	 * subsequent round, the code operates on req->dst only.
+	 */
+	src = req->src;
+	dst = req->dst;
+
+	for (i = 0; i < 6; i++) {
+		struct scatter_walk src_walk, dst_walk;
+		unsigned int nbytes = req->cryptlen;
+
+		while (nbytes) {
+			/* move pointer by nbytes in the SGL */
+			crypto_kw_scatterlist_ff(&src_walk, src, nbytes);
+			/* get the source block */
+			scatterwalk_copychunks(&block.R, &src_walk, SEMIBSIZE,
+					       false);
+
+			/* perform KW operation: modify IV with counter */
+			block.A ^= cpu_to_be64(t);
+			t--;
+			/* perform KW operation: decrypt block */
+			crypto_cipher_decrypt_one(cipher, (u8 *)&block,
+						  (u8 *)&block);
+
+			/* move pointer by nbytes in the SGL */
+			crypto_kw_scatterlist_ff(&dst_walk, dst, nbytes);
+			/* Copy block->R into place */
+			scatterwalk_copychunks(&block.R, &dst_walk, SEMIBSIZE,
+					       true);
+
+			nbytes -= SEMIBSIZE;
+		}
+
+		/* we now start to operate on the dst SGL only */
+		src = req->dst;
+		dst = req->dst;
+	}
+
+	/* Perform authentication check */
+	if (block.A != cpu_to_be64(0xa6a6a6a6a6a6a6a6ULL))
+		ret = -EBADMSG;
+
+	memzero_explicit(&block, sizeof(struct crypto_kw_block));
+
+	return ret;
+}
+
+static int crypto_kw_encrypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct crypto_cipher *cipher = skcipher_cipher_simple(tfm);
+	struct crypto_kw_block block;
+	struct scatterlist *src, *dst;
+	u64 t = 1;
+	unsigned int i;
+
+	/*
+	 * Require at least 2 semiblocks (note, the 3rd semiblock that is
+	 * required by SP800-38F is the IV that occupies the first semiblock.
+	 * This means that the dst memory must be one semiblock larger than src.
+	 * Also ensure that the given data is aligned to semiblock.
+	 */
+	if (req->cryptlen < (2 * SEMIBSIZE) || req->cryptlen % SEMIBSIZE)
+		return -EINVAL;
+
+	/*
+	 * Place the predefined IV into block A -- for encrypt, the caller
+	 * does not need to provide an IV, but he needs to fetch the final IV.
+	 */
+	block.A = cpu_to_be64(0xa6a6a6a6a6a6a6a6ULL);
+
+	/*
+	 * src scatterlist is read-only. dst scatterlist is r/w. During the
+	 * first loop, src points to req->src and dst to req->dst. For any
+	 * subsequent round, the code operates on req->dst only.
+	 */
+	src = req->src;
+	dst = req->dst;
+
+	for (i = 0; i < 6; i++) {
+		struct scatter_walk src_walk, dst_walk;
+		unsigned int nbytes = req->cryptlen;
+
+		scatterwalk_start(&src_walk, src);
+		scatterwalk_start(&dst_walk, dst);
+
+		while (nbytes) {
+			/* get the source block */
+			scatterwalk_copychunks(&block.R, &src_walk, SEMIBSIZE,
+					       false);
+
+			/* perform KW operation: encrypt block */
+			crypto_cipher_encrypt_one(cipher, (u8 *)&block,
+						  (u8 *)&block);
+			/* perform KW operation: modify IV with counter */
+			block.A ^= cpu_to_be64(t);
+			t++;
+
+			/* Copy block->R into place */
+			scatterwalk_copychunks(&block.R, &dst_walk, SEMIBSIZE,
+					       true);
+
+			nbytes -= SEMIBSIZE;
+		}
+
+		/* we now start to operate on the dst SGL only */
+		src = req->dst;
+		dst = req->dst;
+	}
+
+	/* establish the IV for the caller to pick up */
+	memcpy(req->iv, &block.A, SEMIBSIZE);
+
+	memzero_explicit(&block, sizeof(struct crypto_kw_block));
+
+	return 0;
+}
+
+static int crypto_kw_create(struct crypto_template *tmpl, struct rtattr **tb)
+{
+	struct skcipher_instance *inst;
+	struct crypto_alg *alg;
+	int err;
+
+	inst = skcipher_alloc_instance_simple(tmpl, tb);
+	if (IS_ERR(inst))
+		return PTR_ERR(inst);
+
+	alg = skcipher_ialg_simple(inst);
+
+	err = -EINVAL;
+	/* Section 5.1 requirement for KW */
+	if (alg->cra_blocksize != sizeof(struct crypto_kw_block))
+		goto out_free_inst;
+
+	inst->alg.base.cra_blocksize = SEMIBSIZE;
+	inst->alg.base.cra_alignmask = 0;
+	inst->alg.ivsize = SEMIBSIZE;
+
+	inst->alg.encrypt = crypto_kw_encrypt;
+	inst->alg.decrypt = crypto_kw_decrypt;
+
+	err = skcipher_register_instance(tmpl, inst);
+	if (err) {
+out_free_inst:
+		inst->free(inst);
+	}
+
+	return err;
+}
+
+static struct crypto_template crypto_kw_tmpl = {
+	.name = "kw",
+	.create = crypto_kw_create,
+	.module = THIS_MODULE,
+};
+
+static int __init crypto_kw_init(void)
+{
+	return crypto_register_template(&crypto_kw_tmpl);
+}
+
+static void __exit crypto_kw_exit(void)
+{
+	crypto_unregister_template(&crypto_kw_tmpl);
+}
+
+subsys_initcall(crypto_kw_init);
+module_exit(crypto_kw_exit);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("Stephan Mueller <smueller@chronox.de>");
+MODULE_DESCRIPTION("Key Wrapping (RFC3394 / NIST SP800-38F)");
+MODULE_ALIAS_CRYPTO("kw");
+MODULE_IMPORT_NS(CRYPTO_INTERNAL);