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/if_inet6.h | 280 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 280 insertions(+) create mode 100644 include/net/if_inet6.h (limited to 'include/net/if_inet6.h') diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h new file mode 100644 index 000000000..c8490729b --- /dev/null +++ b/include/net/if_inet6.h @@ -0,0 +1,280 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * inet6 interface/address list definitions + * Linux INET6 implementation + * + * Authors: + * Pedro Roque + */ + +#ifndef _NET_IF_INET6_H +#define _NET_IF_INET6_H + +#include +#include +#include + +/* inet6_dev.if_flags */ + +#define IF_RA_OTHERCONF 0x80 +#define IF_RA_MANAGED 0x40 +#define IF_RA_RCVD 0x20 +#define IF_RS_SENT 0x10 +#define IF_READY 0x80000000 + +/* prefix flags */ +#define IF_PREFIX_ONLINK 0x01 +#define IF_PREFIX_AUTOCONF 0x02 + +enum { + INET6_IFADDR_STATE_PREDAD, + INET6_IFADDR_STATE_DAD, + INET6_IFADDR_STATE_POSTDAD, + INET6_IFADDR_STATE_ERRDAD, + INET6_IFADDR_STATE_DEAD, +}; + +struct inet6_ifaddr { + struct in6_addr addr; + __u32 prefix_len; + __u32 rt_priority; + + /* In seconds, relative to tstamp. Expiry is at tstamp + HZ * lft. */ + __u32 valid_lft; + __u32 prefered_lft; + refcount_t refcnt; + spinlock_t lock; + + int state; + + __u32 flags; + __u8 dad_probes; + __u8 stable_privacy_retry; + + __u16 scope; + __u64 dad_nonce; + + unsigned long cstamp; /* created timestamp */ + unsigned long tstamp; /* updated timestamp */ + + struct delayed_work dad_work; + + struct inet6_dev *idev; + struct fib6_info *rt; + + struct hlist_node addr_lst; + struct list_head if_list; + /* + * Used to safely traverse idev->addr_list in process context + * if the idev->lock needed to protect idev->addr_list cannot be held. + * In that case, add the items to this list temporarily and iterate + * without holding idev->lock. + * See addrconf_ifdown and dev_forward_change. + */ + struct list_head if_list_aux; + + struct list_head tmp_list; + struct inet6_ifaddr *ifpub; + int regen_count; + + bool tokenized; + + u8 ifa_proto; + + struct rcu_head rcu; + struct in6_addr peer_addr; +}; + +struct ip6_sf_socklist { + unsigned int sl_max; + unsigned int sl_count; + struct rcu_head rcu; + struct in6_addr sl_addr[]; +}; + +#define IP6_SFBLOCK 10 /* allocate this many at once */ + +struct ipv6_mc_socklist { + struct in6_addr addr; + int ifindex; + unsigned int sfmode; /* MCAST_{INCLUDE,EXCLUDE} */ + struct ipv6_mc_socklist __rcu *next; + struct ip6_sf_socklist __rcu *sflist; + struct rcu_head rcu; +}; + +struct ip6_sf_list { + struct ip6_sf_list __rcu *sf_next; + struct in6_addr sf_addr; + unsigned long sf_count[2]; /* include/exclude counts */ + unsigned char sf_gsresp; /* include in g & s response? */ + unsigned char sf_oldin; /* change state */ + unsigned char sf_crcount; /* retrans. left to send */ + struct rcu_head rcu; +}; + +#define MAF_TIMER_RUNNING 0x01 +#define MAF_LAST_REPORTER 0x02 +#define MAF_LOADED 0x04 +#define MAF_NOREPORT 0x08 +#define MAF_GSQUERY 0x10 + +struct ifmcaddr6 { + struct in6_addr mca_addr; + struct inet6_dev *idev; + struct ifmcaddr6 __rcu *next; + struct ip6_sf_list __rcu *mca_sources; + struct ip6_sf_list __rcu *mca_tomb; + unsigned int mca_sfmode; + unsigned char mca_crcount; + unsigned long mca_sfcount[2]; + struct delayed_work mca_work; + unsigned int mca_flags; + int mca_users; + refcount_t mca_refcnt; + unsigned long mca_cstamp; + unsigned long mca_tstamp; + struct rcu_head rcu; +}; + +/* Anycast stuff */ + +struct ipv6_ac_socklist { + struct in6_addr acl_addr; + int acl_ifindex; + struct ipv6_ac_socklist *acl_next; +}; + +struct ifacaddr6 { + struct in6_addr aca_addr; + struct fib6_info *aca_rt; + struct ifacaddr6 *aca_next; + struct hlist_node aca_addr_lst; + int aca_users; + refcount_t aca_refcnt; + unsigned long aca_cstamp; + unsigned long aca_tstamp; + struct rcu_head rcu; +}; + +#define IFA_HOST IPV6_ADDR_LOOPBACK +#define IFA_LINK IPV6_ADDR_LINKLOCAL +#define IFA_SITE IPV6_ADDR_SITELOCAL + +struct ipv6_devstat { + struct proc_dir_entry *proc_dir_entry; + DEFINE_SNMP_STAT(struct ipstats_mib, ipv6); + DEFINE_SNMP_STAT_ATOMIC(struct icmpv6_mib_device, icmpv6dev); + DEFINE_SNMP_STAT_ATOMIC(struct icmpv6msg_mib_device, icmpv6msgdev); +}; + +struct inet6_dev { + struct net_device *dev; + netdevice_tracker dev_tracker; + + struct list_head addr_list; + + struct ifmcaddr6 __rcu *mc_list; + struct ifmcaddr6 __rcu *mc_tomb; + + unsigned char mc_qrv; /* Query Robustness Variable */ + unsigned char mc_gq_running; + unsigned char mc_ifc_count; + unsigned char mc_dad_count; + + unsigned long mc_v1_seen; /* Max time we stay in MLDv1 mode */ + unsigned long mc_qi; /* Query Interval */ + unsigned long mc_qri; /* Query Response Interval */ + unsigned long mc_maxdelay; + + struct delayed_work mc_gq_work; /* general query work */ + struct delayed_work mc_ifc_work; /* interface change work */ + struct delayed_work mc_dad_work; /* dad complete mc work */ + struct delayed_work mc_query_work; /* mld query work */ + struct delayed_work mc_report_work; /* mld report work */ + + struct sk_buff_head mc_query_queue; /* mld query queue */ + struct sk_buff_head mc_report_queue; /* mld report queue */ + + spinlock_t mc_query_lock; /* mld query queue lock */ + spinlock_t mc_report_lock; /* mld query report lock */ + struct mutex mc_lock; /* mld global lock */ + + struct ifacaddr6 *ac_list; + rwlock_t lock; + refcount_t refcnt; + __u32 if_flags; + int dead; + + u32 desync_factor; + struct list_head tempaddr_list; + + struct in6_addr token; + + struct neigh_parms *nd_parms; + struct ipv6_devconf cnf; + struct ipv6_devstat stats; + + struct timer_list rs_timer; + __s32 rs_interval; /* in jiffies */ + __u8 rs_probes; + + unsigned long tstamp; /* ipv6InterfaceTable update timestamp */ + struct rcu_head rcu; + + unsigned int ra_mtu; +}; + +static inline void ipv6_eth_mc_map(const struct in6_addr *addr, char *buf) +{ + /* + * +-------+-------+-------+-------+-------+-------+ + * | 33 | 33 | DST13 | DST14 | DST15 | DST16 | + * +-------+-------+-------+-------+-------+-------+ + */ + + buf[0]= 0x33; + buf[1]= 0x33; + + memcpy(buf + 2, &addr->s6_addr32[3], sizeof(__u32)); +} + +static inline void ipv6_arcnet_mc_map(const struct in6_addr *addr, char *buf) +{ + buf[0] = 0x00; +} + +static inline void ipv6_ib_mc_map(const struct in6_addr *addr, + const unsigned char *broadcast, char *buf) +{ + unsigned char scope = broadcast[5] & 0xF; + + buf[0] = 0; /* Reserved */ + buf[1] = 0xff; /* Multicast QPN */ + buf[2] = 0xff; + buf[3] = 0xff; + buf[4] = 0xff; + buf[5] = 0x10 | scope; /* scope from broadcast address */ + buf[6] = 0x60; /* IPv6 signature */ + buf[7] = 0x1b; + buf[8] = broadcast[8]; /* P_Key */ + buf[9] = broadcast[9]; + memcpy(buf + 10, addr->s6_addr + 6, 10); +} + +static inline int ipv6_ipgre_mc_map(const struct in6_addr *addr, + const unsigned char *broadcast, char *buf) +{ + if ((broadcast[0] | broadcast[1] | broadcast[2] | broadcast[3]) != 0) { + memcpy(buf, broadcast, 4); + } else { + /* v4mapped? */ + if ((addr->s6_addr32[0] | addr->s6_addr32[1] | + (addr->s6_addr32[2] ^ htonl(0x0000ffff))) != 0) + return -EINVAL; + memcpy(buf, &addr->s6_addr32[3], 4); + } + return 0; +} + +#endif -- cgit v1.2.3