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, 228 insertions, 0 deletions

diff --git a/drivers/staging/wlan-ng/p80211wep.c b/drivers/staging/wlan-ng/p80211wep.c
new file mode 100644
index 000000000..3ff7ee701
--- /dev/null
+++ b/drivers/staging/wlan-ng/p80211wep.c
@@ -0,0 +1,228 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1)
+/*
+ *
+ * WEP encode/decode for P80211.
+ *
+ * Copyright (C) 2002 AbsoluteValue Systems, Inc.  All Rights Reserved.
+ * --------------------------------------------------------------------
+ *
+ * linux-wlan
+ *
+ *   The contents of this file are subject to the Mozilla Public
+ *   License Version 1.1 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.mozilla.org/MPL/
+ *
+ *   Software distributed under the License is distributed on an "AS
+ *   IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ *   implied. See the License for the specific language governing
+ *   rights and limitations under the License.
+ *
+ *   Alternatively, the contents of this file may be used under the
+ *   terms of the GNU Public License version 2 (the "GPL"), in which
+ *   case the provisions of the GPL are applicable instead of the
+ *   above.  If you wish to allow the use of your version of this file
+ *   only under the terms of the GPL and not to allow others to use
+ *   your version of this file under the MPL, indicate your decision
+ *   by deleting the provisions above and replace them with the notice
+ *   and other provisions required by the GPL.  If you do not delete
+ *   the provisions above, a recipient may use your version of this
+ *   file under either the MPL or the GPL.
+ *
+ * --------------------------------------------------------------------
+ *
+ * Inquiries regarding the linux-wlan Open Source project can be
+ * made directly to:
+ *
+ * AbsoluteValue Systems Inc.
+ * info@linux-wlan.com
+ * http://www.linux-wlan.com
+ *
+ * --------------------------------------------------------------------
+ *
+ * Portions of the development of this software were funded by
+ * Intersil Corporation as part of PRISM(R) chipset product development.
+ *
+ * --------------------------------------------------------------------
+ */
+
+/*================================================================*/
+/* System Includes */
+
+#include <linux/crc32.h>
+#include <linux/netdevice.h>
+#include <linux/wireless.h>
+#include <linux/random.h>
+#include <linux/kernel.h>
+#include "p80211hdr.h"
+#include "p80211types.h"
+#include "p80211msg.h"
+#include "p80211conv.h"
+#include "p80211netdev.h"
+
+#define WEP_KEY(x)       (((x) & 0xC0) >> 6)
+
+/* keylen in bytes! */
+
+int wep_change_key(struct wlandevice *wlandev, int keynum, u8 *key, int keylen)
+{
+	if (keylen < 0)
+		return -1;
+	if (keylen >= MAX_KEYLEN)
+		return -1;
+	if (!key)
+		return -1;
+	if (keynum < 0)
+		return -1;
+	if (keynum >= NUM_WEPKEYS)
+		return -1;
+
+	wlandev->wep_keylens[keynum] = keylen;
+	memcpy(wlandev->wep_keys[keynum], key, keylen);
+
+	return 0;
+}
+
+/*
+ * 4-byte IV at start of buffer, 4-byte ICV at end of buffer.
+ * if successful, buf start is payload begin, length -= 8;
+ */
+int wep_decrypt(struct wlandevice *wlandev, u8 *buf, u32 len, int key_override,
+		u8 *iv, u8 *icv)
+{
+	u32 i, j, k, crc, keylen;
+	u8 s[256], key[64], c_crc[4];
+	u8 keyidx;
+
+	/* Needs to be at least 8 bytes of payload */
+	if (len <= 0)
+		return -1;
+
+	/* initialize the first bytes of the key from the IV */
+	key[0] = iv[0];
+	key[1] = iv[1];
+	key[2] = iv[2];
+	keyidx = WEP_KEY(iv[3]);
+
+	if (key_override >= 0)
+		keyidx = key_override;
+
+	if (keyidx >= NUM_WEPKEYS)
+		return -2;
+
+	keylen = wlandev->wep_keylens[keyidx];
+
+	if (keylen == 0)
+		return -3;
+
+	/* copy the rest of the key over from the designated key */
+	memcpy(key + 3, wlandev->wep_keys[keyidx], keylen);
+
+	keylen += 3;		/* add in IV bytes */
+
+	/* set up the RC4 state */
+	for (i = 0; i < 256; i++)
+		s[i] = i;
+	j = 0;
+	for (i = 0; i < 256; i++) {
+		j = (j + s[i] + key[i % keylen]) & 0xff;
+		swap(i, j);
+	}
+
+	/* Apply the RC4 to the data, update the CRC32 */
+	i = 0;
+	j = 0;
+	for (k = 0; k < len; k++) {
+		i = (i + 1) & 0xff;
+		j = (j + s[i]) & 0xff;
+		swap(i, j);
+		buf[k] ^= s[(s[i] + s[j]) & 0xff];
+	}
+	crc = ~crc32_le(~0, buf, len);
+
+	/* now let's check the crc */
+	c_crc[0] = crc;
+	c_crc[1] = crc >> 8;
+	c_crc[2] = crc >> 16;
+	c_crc[3] = crc >> 24;
+
+	for (k = 0; k < 4; k++) {
+		i = (i + 1) & 0xff;
+		j = (j + s[i]) & 0xff;
+		swap(i, j);
+		if ((c_crc[k] ^ s[(s[i] + s[j]) & 0xff]) != icv[k])
+			return -(4 | (k << 4));	/* ICV mismatch */
+	}
+
+	return 0;
+}
+
+/* encrypts in-place. */
+int wep_encrypt(struct wlandevice *wlandev, u8 *buf,
+		u8 *dst, u32 len, int keynum, u8 *iv, u8 *icv)
+{
+	u32 i, j, k, crc, keylen;
+	u8 s[256], key[64];
+
+	/* no point in WEPping an empty frame */
+	if (len <= 0)
+		return -1;
+
+	/* we need to have a real key.. */
+	if (keynum >= NUM_WEPKEYS)
+		return -2;
+	keylen = wlandev->wep_keylens[keynum];
+	if (keylen <= 0)
+		return -3;
+
+	/* use a random IV.  And skip known weak ones. */
+	get_random_bytes(iv, 3);
+	while ((iv[1] == 0xff) && (iv[0] >= 3) && (iv[0] < keylen))
+		get_random_bytes(iv, 3);
+
+	iv[3] = (keynum & 0x03) << 6;
+
+	key[0] = iv[0];
+	key[1] = iv[1];
+	key[2] = iv[2];
+
+	/* copy the rest of the key over from the designated key */
+	memcpy(key + 3, wlandev->wep_keys[keynum], keylen);
+
+	keylen += 3;		/* add in IV bytes */
+
+	/* set up the RC4 state */
+	for (i = 0; i < 256; i++)
+		s[i] = i;
+	j = 0;
+	for (i = 0; i < 256; i++) {
+		j = (j + s[i] + key[i % keylen]) & 0xff;
+		swap(i, j);
+	}
+
+	/* Update CRC32 then apply RC4 to the data */
+	i = 0;
+	j = 0;
+	for (k = 0; k < len; k++) {
+		i = (i + 1) & 0xff;
+		j = (j + s[i]) & 0xff;
+		swap(i, j);
+		dst[k] = buf[k] ^ s[(s[i] + s[j]) & 0xff];
+	}
+	crc = ~crc32_le(~0, buf, len);
+
+	/* now let's encrypt the crc */
+	icv[0] = crc;
+	icv[1] = crc >> 8;
+	icv[2] = crc >> 16;
+	icv[3] = crc >> 24;
+
+	for (k = 0; k < 4; k++) {
+		i = (i + 1) & 0xff;
+		j = (j + s[i]) & 0xff;
+		swap(i, j);
+		icv[k] ^= s[(s[i] + s[j]) & 0xff];
+	}
+
+	return 0;
+}