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, 368 insertions, 0 deletions

diff --git a/net/netfilter/xt_HMARK.c b/net/netfilter/xt_HMARK.c
new file mode 100644
index 000000000..8928ec56c
--- /dev/null
+++ b/net/netfilter/xt_HMARK.c
@@ -0,0 +1,368 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * xt_HMARK - Netfilter module to set mark by means of hashing
+ *
+ * (C) 2012 by Hans Schillstrom <hans.schillstrom@ericsson.com>
+ * (C) 2012 by Pablo Neira Ayuso <pablo@netfilter.org>
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/icmp.h>
+
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter/xt_HMARK.h>
+
+#include <net/ip.h>
+#if IS_ENABLED(CONFIG_NF_CONNTRACK)
+#include <net/netfilter/nf_conntrack.h>
+#endif
+#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
+#include <net/ipv6.h>
+#include <linux/netfilter_ipv6/ip6_tables.h>
+#endif
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Hans Schillstrom <hans.schillstrom@ericsson.com>");
+MODULE_DESCRIPTION("Xtables: packet marking using hash calculation");
+MODULE_ALIAS("ipt_HMARK");
+MODULE_ALIAS("ip6t_HMARK");
+
+struct hmark_tuple {
+	__be32			src;
+	__be32			dst;
+	union hmark_ports	uports;
+	u8			proto;
+};
+
+static inline __be32 hmark_addr6_mask(const __be32 *addr32, const __be32 *mask)
+{
+	return (addr32[0] & mask[0]) ^
+	       (addr32[1] & mask[1]) ^
+	       (addr32[2] & mask[2]) ^
+	       (addr32[3] & mask[3]);
+}
+
+static inline __be32
+hmark_addr_mask(int l3num, const __be32 *addr32, const __be32 *mask)
+{
+	switch (l3num) {
+	case AF_INET:
+		return *addr32 & *mask;
+	case AF_INET6:
+		return hmark_addr6_mask(addr32, mask);
+	}
+	return 0;
+}
+
+static inline void hmark_swap_ports(union hmark_ports *uports,
+				    const struct xt_hmark_info *info)
+{
+	union hmark_ports hp;
+	u16 src, dst;
+
+	hp.b32 = (uports->b32 & info->port_mask.b32) | info->port_set.b32;
+	src = ntohs(hp.b16.src);
+	dst = ntohs(hp.b16.dst);
+
+	if (dst > src)
+		uports->v32 = (dst << 16) | src;
+	else
+		uports->v32 = (src << 16) | dst;
+}
+
+static int
+hmark_ct_set_htuple(const struct sk_buff *skb, struct hmark_tuple *t,
+		    const struct xt_hmark_info *info)
+{
+#if IS_ENABLED(CONFIG_NF_CONNTRACK)
+	enum ip_conntrack_info ctinfo;
+	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
+	struct nf_conntrack_tuple *otuple;
+	struct nf_conntrack_tuple *rtuple;
+
+	if (ct == NULL)
+		return -1;
+
+	otuple = &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple;
+	rtuple = &ct->tuplehash[IP_CT_DIR_REPLY].tuple;
+
+	t->src = hmark_addr_mask(otuple->src.l3num, otuple->src.u3.ip6,
+				 info->src_mask.ip6);
+	t->dst = hmark_addr_mask(otuple->src.l3num, rtuple->src.u3.ip6,
+				 info->dst_mask.ip6);
+
+	if (info->flags & XT_HMARK_FLAG(XT_HMARK_METHOD_L3))
+		return 0;
+
+	t->proto = nf_ct_protonum(ct);
+	if (t->proto != IPPROTO_ICMP) {
+		t->uports.b16.src = otuple->src.u.all;
+		t->uports.b16.dst = rtuple->src.u.all;
+		hmark_swap_ports(&t->uports, info);
+	}
+
+	return 0;
+#else
+	return -1;
+#endif
+}
+
+/* This hash function is endian independent, to ensure consistent hashing if
+ * the cluster is composed of big and little endian systems. */
+static inline u32
+hmark_hash(struct hmark_tuple *t, const struct xt_hmark_info *info)
+{
+	u32 hash;
+	u32 src = ntohl(t->src);
+	u32 dst = ntohl(t->dst);
+
+	if (dst < src)
+		swap(src, dst);
+
+	hash = jhash_3words(src, dst, t->uports.v32, info->hashrnd);
+	hash = hash ^ (t->proto & info->proto_mask);
+
+	return reciprocal_scale(hash, info->hmodulus) + info->hoffset;
+}
+
+static void
+hmark_set_tuple_ports(const struct sk_buff *skb, unsigned int nhoff,
+		      struct hmark_tuple *t, const struct xt_hmark_info *info)
+{
+	int protoff;
+
+	protoff = proto_ports_offset(t->proto);
+	if (protoff < 0)
+		return;
+
+	nhoff += protoff;
+	if (skb_copy_bits(skb, nhoff, &t->uports, sizeof(t->uports)) < 0)
+		return;
+
+	hmark_swap_ports(&t->uports, info);
+}
+
+#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
+static int get_inner6_hdr(const struct sk_buff *skb, int *offset)
+{
+	struct icmp6hdr *icmp6h, _ih6;
+
+	icmp6h = skb_header_pointer(skb, *offset, sizeof(_ih6), &_ih6);
+	if (icmp6h == NULL)
+		return 0;
+
+	if (icmp6h->icmp6_type && icmp6h->icmp6_type < 128) {
+		*offset += sizeof(struct icmp6hdr);
+		return 1;
+	}
+	return 0;
+}
+
+static int
+hmark_pkt_set_htuple_ipv6(const struct sk_buff *skb, struct hmark_tuple *t,
+			  const struct xt_hmark_info *info)
+{
+	struct ipv6hdr *ip6, _ip6;
+	int flag = IP6_FH_F_AUTH;
+	unsigned int nhoff = 0;
+	u16 fragoff = 0;
+	int nexthdr;
+
+	ip6 = (struct ipv6hdr *) (skb->data + skb_network_offset(skb));
+	nexthdr = ipv6_find_hdr(skb, &nhoff, -1, &fragoff, &flag);
+	if (nexthdr < 0)
+		return 0;
+	/* No need to check for icmp errors on fragments */
+	if ((flag & IP6_FH_F_FRAG) || (nexthdr != IPPROTO_ICMPV6))
+		goto noicmp;
+	/* Use inner header in case of ICMP errors */
+	if (get_inner6_hdr(skb, &nhoff)) {
+		ip6 = skb_header_pointer(skb, nhoff, sizeof(_ip6), &_ip6);
+		if (ip6 == NULL)
+			return -1;
+		/* If AH present, use SPI like in ESP. */
+		flag = IP6_FH_F_AUTH;
+		nexthdr = ipv6_find_hdr(skb, &nhoff, -1, &fragoff, &flag);
+		if (nexthdr < 0)
+			return -1;
+	}
+noicmp:
+	t->src = hmark_addr6_mask(ip6->saddr.s6_addr32, info->src_mask.ip6);
+	t->dst = hmark_addr6_mask(ip6->daddr.s6_addr32, info->dst_mask.ip6);
+
+	if (info->flags & XT_HMARK_FLAG(XT_HMARK_METHOD_L3))
+		return 0;
+
+	t->proto = nexthdr;
+	if (t->proto == IPPROTO_ICMPV6)
+		return 0;
+
+	if (flag & IP6_FH_F_FRAG)
+		return 0;
+
+	hmark_set_tuple_ports(skb, nhoff, t, info);
+	return 0;
+}
+
+static unsigned int
+hmark_tg_v6(struct sk_buff *skb, const struct xt_action_param *par)
+{
+	const struct xt_hmark_info *info = par->targinfo;
+	struct hmark_tuple t;
+
+	memset(&t, 0, sizeof(struct hmark_tuple));
+
+	if (info->flags & XT_HMARK_FLAG(XT_HMARK_CT)) {
+		if (hmark_ct_set_htuple(skb, &t, info) < 0)
+			return XT_CONTINUE;
+	} else {
+		if (hmark_pkt_set_htuple_ipv6(skb, &t, info) < 0)
+			return XT_CONTINUE;
+	}
+
+	skb->mark = hmark_hash(&t, info);
+	return XT_CONTINUE;
+}
+#endif
+
+static int get_inner_hdr(const struct sk_buff *skb, int iphsz, int *nhoff)
+{
+	const struct icmphdr *icmph;
+	struct icmphdr _ih;
+
+	/* Not enough header? */
+	icmph = skb_header_pointer(skb, *nhoff + iphsz, sizeof(_ih), &_ih);
+	if (icmph == NULL || icmph->type > NR_ICMP_TYPES)
+		return 0;
+
+	/* Error message? */
+	if (!icmp_is_err(icmph->type))
+		return 0;
+
+	*nhoff += iphsz + sizeof(_ih);
+	return 1;
+}
+
+static int
+hmark_pkt_set_htuple_ipv4(const struct sk_buff *skb, struct hmark_tuple *t,
+			  const struct xt_hmark_info *info)
+{
+	struct iphdr *ip, _ip;
+	int nhoff = skb_network_offset(skb);
+
+	ip = (struct iphdr *) (skb->data + nhoff);
+	if (ip->protocol == IPPROTO_ICMP) {
+		/* Use inner header in case of ICMP errors */
+		if (get_inner_hdr(skb, ip->ihl * 4, &nhoff)) {
+			ip = skb_header_pointer(skb, nhoff, sizeof(_ip), &_ip);
+			if (ip == NULL)
+				return -1;
+		}
+	}
+
+	t->src = ip->saddr & info->src_mask.ip;
+	t->dst = ip->daddr & info->dst_mask.ip;
+
+	if (info->flags & XT_HMARK_FLAG(XT_HMARK_METHOD_L3))
+		return 0;
+
+	t->proto = ip->protocol;
+
+	/* ICMP has no ports, skip */
+	if (t->proto == IPPROTO_ICMP)
+		return 0;
+
+	/* follow-up fragments don't contain ports, skip all fragments */
+	if (ip_is_fragment(ip))
+		return 0;
+
+	hmark_set_tuple_ports(skb, (ip->ihl * 4) + nhoff, t, info);
+
+	return 0;
+}
+
+static unsigned int
+hmark_tg_v4(struct sk_buff *skb, const struct xt_action_param *par)
+{
+	const struct xt_hmark_info *info = par->targinfo;
+	struct hmark_tuple t;
+
+	memset(&t, 0, sizeof(struct hmark_tuple));
+
+	if (info->flags & XT_HMARK_FLAG(XT_HMARK_CT)) {
+		if (hmark_ct_set_htuple(skb, &t, info) < 0)
+			return XT_CONTINUE;
+	} else {
+		if (hmark_pkt_set_htuple_ipv4(skb, &t, info) < 0)
+			return XT_CONTINUE;
+	}
+
+	skb->mark = hmark_hash(&t, info);
+	return XT_CONTINUE;
+}
+
+static int hmark_tg_check(const struct xt_tgchk_param *par)
+{
+	const struct xt_hmark_info *info = par->targinfo;
+	const char *errmsg = "proto mask must be zero with L3 mode";
+
+	if (!info->hmodulus)
+		return -EINVAL;
+
+	if (info->proto_mask &&
+	    (info->flags & XT_HMARK_FLAG(XT_HMARK_METHOD_L3)))
+		goto err;
+
+	if (info->flags & XT_HMARK_FLAG(XT_HMARK_SPI_MASK) &&
+	    (info->flags & (XT_HMARK_FLAG(XT_HMARK_SPORT_MASK) |
+			     XT_HMARK_FLAG(XT_HMARK_DPORT_MASK))))
+		return -EINVAL;
+
+	if (info->flags & XT_HMARK_FLAG(XT_HMARK_SPI) &&
+	    (info->flags & (XT_HMARK_FLAG(XT_HMARK_SPORT) |
+			     XT_HMARK_FLAG(XT_HMARK_DPORT)))) {
+		errmsg = "spi-set and port-set can't be combined";
+		goto err;
+	}
+	return 0;
+err:
+	pr_info_ratelimited("%s\n", errmsg);
+	return -EINVAL;
+}
+
+static struct xt_target hmark_tg_reg[] __read_mostly = {
+	{
+		.name		= "HMARK",
+		.family		= NFPROTO_IPV4,
+		.target		= hmark_tg_v4,
+		.targetsize	= sizeof(struct xt_hmark_info),
+		.checkentry	= hmark_tg_check,
+		.me		= THIS_MODULE,
+	},
+#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
+	{
+		.name		= "HMARK",
+		.family		= NFPROTO_IPV6,
+		.target		= hmark_tg_v6,
+		.targetsize	= sizeof(struct xt_hmark_info),
+		.checkentry	= hmark_tg_check,
+		.me		= THIS_MODULE,
+	},
+#endif
+};
+
+static int __init hmark_tg_init(void)
+{
+	return xt_register_targets(hmark_tg_reg, ARRAY_SIZE(hmark_tg_reg));
+}
+
+static void __exit hmark_tg_exit(void)
+{
+	xt_unregister_targets(hmark_tg_reg, ARRAY_SIZE(hmark_tg_reg));
+}
+
+module_init(hmark_tg_init);
+module_exit(hmark_tg_exit);