From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 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(). ... --- drivers/staging/wlan-ng/p80211req.c | 244 ++++++++++++++++++++++++++++++++++++ 1 file changed, 244 insertions(+) create mode 100644 drivers/staging/wlan-ng/p80211req.c (limited to 'drivers/staging/wlan-ng/p80211req.c') diff --git a/drivers/staging/wlan-ng/p80211req.c b/drivers/staging/wlan-ng/p80211req.c new file mode 100644 index 000000000..809cf3d48 --- /dev/null +++ b/drivers/staging/wlan-ng/p80211req.c @@ -0,0 +1,244 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) +/* + * + * Request/Indication/MacMgmt interface handling functions + * + * Copyright (C) 1999 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. + * + * -------------------------------------------------------------------- + * + * This file contains the functions, types, and macros to support the + * MLME request interface that's implemented via the device ioctls. + * + * -------------------------------------------------------------------- + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "p80211types.h" +#include "p80211hdr.h" +#include "p80211mgmt.h" +#include "p80211conv.h" +#include "p80211msg.h" +#include "p80211netdev.h" +#include "p80211ioctl.h" +#include "p80211metadef.h" +#include "p80211metastruct.h" +#include "p80211req.h" + +static void p80211req_handlemsg(struct wlandevice *wlandev, + struct p80211msg *msg); +static void p80211req_mibset_mibget(struct wlandevice *wlandev, + struct p80211msg_dot11req_mibget *mib_msg, + int isget); + +static void p80211req_handle_action(struct wlandevice *wlandev, u32 *data, + int isget, u32 flag) +{ + if (isget) { + if (wlandev->hostwep & flag) + *data = P80211ENUM_truth_true; + else + *data = P80211ENUM_truth_false; + } else { + wlandev->hostwep &= ~flag; + if (*data == P80211ENUM_truth_true) + wlandev->hostwep |= flag; + } +} + +/*---------------------------------------------------------------- + * p80211req_dorequest + * + * Handles an MLME request/confirm message. + * + * Arguments: + * wlandev WLAN device struct + * msgbuf Buffer containing a request message + * + * Returns: + * 0 on success, an errno otherwise + * + * Call context: + * Potentially blocks the caller, so it's a good idea to + * not call this function from an interrupt context. + *---------------------------------------------------------------- + */ +int p80211req_dorequest(struct wlandevice *wlandev, u8 *msgbuf) +{ + struct p80211msg *msg = (struct p80211msg *)msgbuf; + + /* Check to make sure the MSD is running */ + if (!((wlandev->msdstate == WLAN_MSD_HWPRESENT && + msg->msgcode == DIDMSG_LNXREQ_IFSTATE) || + wlandev->msdstate == WLAN_MSD_RUNNING || + wlandev->msdstate == WLAN_MSD_FWLOAD)) { + return -ENODEV; + } + + /* Check Permissions */ + if (!capable(CAP_NET_ADMIN) && + (msg->msgcode != DIDMSG_DOT11REQ_MIBGET)) { + netdev_err(wlandev->netdev, + "%s: only dot11req_mibget allowed for non-root.\n", + wlandev->name); + return -EPERM; + } + + /* Check for busy status */ + if (test_and_set_bit(1, &wlandev->request_pending)) + return -EBUSY; + + /* Allow p80211 to look at msg and handle if desired. */ + /* So far, all p80211 msgs are immediate, no waitq/timer necessary */ + /* This may change. */ + p80211req_handlemsg(wlandev, msg); + + /* Pass it down to wlandev via wlandev->mlmerequest */ + if (wlandev->mlmerequest) + wlandev->mlmerequest(wlandev, msg); + + clear_bit(1, &wlandev->request_pending); + return 0; /* if result==0, msg->status still may contain an err */ +} + +/*---------------------------------------------------------------- + * p80211req_handlemsg + * + * p80211 message handler. Primarily looks for messages that + * belong to p80211 and then dispatches the appropriate response. + * TODO: we don't do anything yet. Once the linuxMIB is better + * defined we'll need a get/set handler. + * + * Arguments: + * wlandev WLAN device struct + * msg message structure + * + * Returns: + * nothing (any results are set in the status field of the msg) + * + * Call context: + * Process thread + *---------------------------------------------------------------- + */ +static void p80211req_handlemsg(struct wlandevice *wlandev, + struct p80211msg *msg) +{ + switch (msg->msgcode) { + case DIDMSG_LNXREQ_HOSTWEP: { + struct p80211msg_lnxreq_hostwep *req = + (struct p80211msg_lnxreq_hostwep *)msg; + wlandev->hostwep &= + ~(HOSTWEP_DECRYPT | HOSTWEP_ENCRYPT); + if (req->decrypt.data == P80211ENUM_truth_true) + wlandev->hostwep |= HOSTWEP_DECRYPT; + if (req->encrypt.data == P80211ENUM_truth_true) + wlandev->hostwep |= HOSTWEP_ENCRYPT; + + break; + } + case DIDMSG_DOT11REQ_MIBGET: + case DIDMSG_DOT11REQ_MIBSET: { + int isget = (msg->msgcode == DIDMSG_DOT11REQ_MIBGET); + struct p80211msg_dot11req_mibget *mib_msg = + (struct p80211msg_dot11req_mibget *)msg; + p80211req_mibset_mibget(wlandev, mib_msg, isget); + break; + } + } /* switch msg->msgcode */ +} + +static void p80211req_mibset_mibget(struct wlandevice *wlandev, + struct p80211msg_dot11req_mibget *mib_msg, + int isget) +{ + struct p80211itemd *mibitem = + (struct p80211itemd *)mib_msg->mibattribute.data; + struct p80211pstrd *pstr = (struct p80211pstrd *)mibitem->data; + u8 *key = mibitem->data + sizeof(struct p80211pstrd); + + switch (mibitem->did) { + case didmib_dot11smt_wepdefaultkeystable_key(1): + case didmib_dot11smt_wepdefaultkeystable_key(2): + case didmib_dot11smt_wepdefaultkeystable_key(3): + case didmib_dot11smt_wepdefaultkeystable_key(4): + if (!isget) + wep_change_key(wlandev, + P80211DID_ITEM(mibitem->did) - 1, + key, pstr->len); + break; + + case DIDMIB_DOT11SMT_PRIVACYTABLE_WEPDEFAULTKEYID: { + u32 *data = (u32 *)mibitem->data; + + if (isget) { + *data = wlandev->hostwep & HOSTWEP_DEFAULTKEY_MASK; + } else { + wlandev->hostwep &= ~(HOSTWEP_DEFAULTKEY_MASK); + wlandev->hostwep |= (*data & HOSTWEP_DEFAULTKEY_MASK); + } + break; + } + case DIDMIB_DOT11SMT_PRIVACYTABLE_PRIVACYINVOKED: { + u32 *data = (u32 *)mibitem->data; + + p80211req_handle_action(wlandev, data, isget, + HOSTWEP_PRIVACYINVOKED); + break; + } + case DIDMIB_DOT11SMT_PRIVACYTABLE_EXCLUDEUNENCRYPTED: { + u32 *data = (u32 *)mibitem->data; + + p80211req_handle_action(wlandev, data, isget, + HOSTWEP_EXCLUDEUNENCRYPTED); + break; + } + } +} -- cgit v1.2.3