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(). ... --- include/net/regulatory.h | 251 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 251 insertions(+) create mode 100644 include/net/regulatory.h (limited to 'include/net/regulatory.h') diff --git a/include/net/regulatory.h b/include/net/regulatory.h new file mode 100644 index 000000000..896191f42 --- /dev/null +++ b/include/net/regulatory.h @@ -0,0 +1,251 @@ + +#ifndef __NET_REGULATORY_H +#define __NET_REGULATORY_H +/* + * regulatory support structures + * + * Copyright 2008-2009 Luis R. Rodriguez + * Copyright (C) 2018 Intel Corporation + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include +#include +#include + +/** + * enum environment_cap - Environment parsed from country IE + * @ENVIRON_ANY: indicates country IE applies to both indoor and + * outdoor operation. + * @ENVIRON_INDOOR: indicates country IE applies only to indoor operation + * @ENVIRON_OUTDOOR: indicates country IE applies only to outdoor operation + */ +enum environment_cap { + ENVIRON_ANY, + ENVIRON_INDOOR, + ENVIRON_OUTDOOR, +}; + +/** + * struct regulatory_request - used to keep track of regulatory requests + * + * @rcu_head: RCU head struct used to free the request + * @wiphy_idx: this is set if this request's initiator is + * %REGDOM_SET_BY_COUNTRY_IE or %REGDOM_SET_BY_DRIVER. This + * can be used by the wireless core to deal with conflicts + * and potentially inform users of which devices specifically + * cased the conflicts. + * @initiator: indicates who sent this request, could be any of + * those set in nl80211_reg_initiator (%NL80211_REGDOM_SET_BY_*) + * @alpha2: the ISO / IEC 3166 alpha2 country code of the requested + * regulatory domain. We have a few special codes: + * 00 - World regulatory domain + * 99 - built by driver but a specific alpha2 cannot be determined + * 98 - result of an intersection between two regulatory domains + * 97 - regulatory domain has not yet been configured + * @dfs_region: If CRDA responded with a regulatory domain that requires + * DFS master operation on a known DFS region (NL80211_DFS_*), + * dfs_region represents that region. Drivers can use this and the + * @alpha2 to adjust their device's DFS parameters as required. + * @user_reg_hint_type: if the @initiator was of type + * %NL80211_REGDOM_SET_BY_USER, this classifies the type + * of hint passed. This could be any of the %NL80211_USER_REG_HINT_* + * types. + * @intersect: indicates whether the wireless core should intersect + * the requested regulatory domain with the presently set regulatory + * domain. + * @processed: indicates whether or not this requests has already been + * processed. When the last request is processed it means that the + * currently regulatory domain set on cfg80211 is updated from + * CRDA and can be used by other regulatory requests. When a + * the last request is not yet processed we must yield until it + * is processed before processing any new requests. + * @country_ie_checksum: checksum of the last processed and accepted + * country IE + * @country_ie_env: lets us know if the AP is telling us we are outdoor, + * indoor, or if it doesn't matter + * @list: used to insert into the reg_requests_list linked list + */ +struct regulatory_request { + struct rcu_head rcu_head; + int wiphy_idx; + enum nl80211_reg_initiator initiator; + enum nl80211_user_reg_hint_type user_reg_hint_type; + char alpha2[3]; + enum nl80211_dfs_regions dfs_region; + bool intersect; + bool processed; + enum environment_cap country_ie_env; + struct list_head list; +}; + +/** + * enum ieee80211_regulatory_flags - device regulatory flags + * + * @REGULATORY_CUSTOM_REG: tells us the driver for this device + * has its own custom regulatory domain and cannot identify the + * ISO / IEC 3166 alpha2 it belongs to. When this is enabled + * we will disregard the first regulatory hint (when the + * initiator is %REGDOM_SET_BY_CORE). Drivers that use + * wiphy_apply_custom_regulatory() should have this flag set + * or the regulatory core will set it for the wiphy. + * If you use regulatory_hint() *after* using + * wiphy_apply_custom_regulatory() the wireless core will + * clear the REGULATORY_CUSTOM_REG for your wiphy as it would be + * implied that the device somehow gained knowledge of its region. + * @REGULATORY_STRICT_REG: tells us that the wiphy for this device + * has regulatory domain that it wishes to be considered as the + * superset for regulatory rules. After this device gets its regulatory + * domain programmed further regulatory hints shall only be considered + * for this device to enhance regulatory compliance, forcing the + * device to only possibly use subsets of the original regulatory + * rules. For example if channel 13 and 14 are disabled by this + * device's regulatory domain no user specified regulatory hint which + * has these channels enabled would enable them for this wiphy, + * the device's original regulatory domain will be trusted as the + * base. You can program the superset of regulatory rules for this + * wiphy with regulatory_hint() for cards programmed with an + * ISO3166-alpha2 country code. wiphys that use regulatory_hint() + * will have their wiphy->regd programmed once the regulatory + * domain is set, and all other regulatory hints will be ignored + * until their own regulatory domain gets programmed. + * @REGULATORY_DISABLE_BEACON_HINTS: enable this if your driver needs to + * ensure that passive scan flags and beaconing flags may not be lifted by + * cfg80211 due to regulatory beacon hints. For more information on beacon + * hints read the documenation for regulatory_hint_found_beacon() + * @REGULATORY_COUNTRY_IE_FOLLOW_POWER: for devices that have a preference + * that even though they may have programmed their own custom power + * setting prior to wiphy registration, they want to ensure their channel + * power settings are updated for this connection with the power settings + * derived from the regulatory domain. The regulatory domain used will be + * based on the ISO3166-alpha2 from country IE provided through + * regulatory_hint_country_ie() + * @REGULATORY_COUNTRY_IE_IGNORE: for devices that have a preference to ignore + * all country IE information processed by the regulatory core. This will + * override %REGULATORY_COUNTRY_IE_FOLLOW_POWER as all country IEs will + * be ignored. + * @REGULATORY_ENABLE_RELAX_NO_IR: for devices that wish to allow the + * NO_IR relaxation, which enables transmissions on channels on which + * otherwise initiating radiation is not allowed. This will enable the + * relaxations enabled under the CFG80211_REG_RELAX_NO_IR configuration + * option + * @REGULATORY_IGNORE_STALE_KICKOFF: the regulatory core will _not_ make sure + * all interfaces on this wiphy reside on allowed channels. If this flag + * is not set, upon a regdomain change, the interfaces are given a grace + * period (currently 60 seconds) to disconnect or move to an allowed + * channel. Interfaces on forbidden channels are forcibly disconnected. + * Currently these types of interfaces are supported for enforcement: + * NL80211_IFTYPE_ADHOC, NL80211_IFTYPE_STATION, NL80211_IFTYPE_AP, + * NL80211_IFTYPE_AP_VLAN, NL80211_IFTYPE_MONITOR, + * NL80211_IFTYPE_P2P_CLIENT, NL80211_IFTYPE_P2P_GO, + * NL80211_IFTYPE_P2P_DEVICE. The flag will be set by default if a device + * includes any modes unsupported for enforcement checking. + * @REGULATORY_WIPHY_SELF_MANAGED: for devices that employ wiphy-specific + * regdom management. These devices will ignore all regdom changes not + * originating from their own wiphy. + * A self-managed wiphys only employs regulatory information obtained from + * the FW and driver and does not use other cfg80211 sources like + * beacon-hints, country-code IEs and hints from other devices on the same + * system. Conversely, a self-managed wiphy does not share its regulatory + * hints with other devices in the system. If a system contains several + * devices, one or more of which are self-managed, there might be + * contradictory regulatory settings between them. Usage of flag is + * generally discouraged. Only use it if the FW/driver is incompatible + * with non-locally originated hints. + * This flag is incompatible with the flags: %REGULATORY_CUSTOM_REG, + * %REGULATORY_STRICT_REG, %REGULATORY_COUNTRY_IE_FOLLOW_POWER, + * %REGULATORY_COUNTRY_IE_IGNORE and %REGULATORY_DISABLE_BEACON_HINTS. + * Mixing any of the above flags with this flag will result in a failure + * to register the wiphy. This flag implies + * %REGULATORY_DISABLE_BEACON_HINTS and %REGULATORY_COUNTRY_IE_IGNORE. + */ +enum ieee80211_regulatory_flags { + REGULATORY_CUSTOM_REG = BIT(0), + REGULATORY_STRICT_REG = BIT(1), + REGULATORY_DISABLE_BEACON_HINTS = BIT(2), + REGULATORY_COUNTRY_IE_FOLLOW_POWER = BIT(3), + REGULATORY_COUNTRY_IE_IGNORE = BIT(4), + REGULATORY_ENABLE_RELAX_NO_IR = BIT(5), + REGULATORY_IGNORE_STALE_KICKOFF = BIT(6), + REGULATORY_WIPHY_SELF_MANAGED = BIT(7), +}; + +struct ieee80211_freq_range { + u32 start_freq_khz; + u32 end_freq_khz; + u32 max_bandwidth_khz; +}; + +struct ieee80211_power_rule { + u32 max_antenna_gain; + u32 max_eirp; +}; + +/** + * struct ieee80211_wmm_ac - used to store per ac wmm regulatory limitation + * + * The information provided in this structure is required for QoS + * transmit queue configuration. Cf. IEEE 802.11 7.3.2.29. + * + * @cw_min: minimum contention window [a value of the form + * 2^n-1 in the range 1..32767] + * @cw_max: maximum contention window [like @cw_min] + * @cot: maximum burst time in units of 32 usecs, 0 meaning disabled + * @aifsn: arbitration interframe space [0..255] + * + */ +struct ieee80211_wmm_ac { + u16 cw_min; + u16 cw_max; + u16 cot; + u8 aifsn; +}; + +struct ieee80211_wmm_rule { + struct ieee80211_wmm_ac client[IEEE80211_NUM_ACS]; + struct ieee80211_wmm_ac ap[IEEE80211_NUM_ACS]; +}; + +struct ieee80211_reg_rule { + struct ieee80211_freq_range freq_range; + struct ieee80211_power_rule power_rule; + struct ieee80211_wmm_rule wmm_rule; + u32 flags; + u32 dfs_cac_ms; + bool has_wmm; +}; + +struct ieee80211_regdomain { + struct rcu_head rcu_head; + u32 n_reg_rules; + char alpha2[3]; + enum nl80211_dfs_regions dfs_region; + struct ieee80211_reg_rule reg_rules[]; +}; + +#define REG_RULE_EXT(start, end, bw, gain, eirp, dfs_cac, reg_flags) \ +{ \ + .freq_range.start_freq_khz = MHZ_TO_KHZ(start), \ + .freq_range.end_freq_khz = MHZ_TO_KHZ(end), \ + .freq_range.max_bandwidth_khz = MHZ_TO_KHZ(bw), \ + .power_rule.max_antenna_gain = DBI_TO_MBI(gain), \ + .power_rule.max_eirp = DBM_TO_MBM(eirp), \ + .flags = reg_flags, \ + .dfs_cac_ms = dfs_cac, \ +} + +#define REG_RULE(start, end, bw, gain, eirp, reg_flags) \ + REG_RULE_EXT(start, end, bw, gain, eirp, 0, reg_flags) + +#endif -- cgit v1.2.3