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, 440 insertions, 0 deletions

diff --git a/net/bridge/br_ioctl.c b/net/bridge/br_ioctl.c
new file mode 100644
index 000000000..f213ed108
--- /dev/null
+++ b/net/bridge/br_ioctl.c
@@ -0,0 +1,440 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *	Ioctl handler
+ *	Linux ethernet bridge
+ *
+ *	Authors:
+ *	Lennert Buytenhek		<buytenh@gnu.org>
+ */
+
+#include <linux/capability.h>
+#include <linux/compat.h>
+#include <linux/kernel.h>
+#include <linux/if_bridge.h>
+#include <linux/netdevice.h>
+#include <linux/slab.h>
+#include <linux/times.h>
+#include <net/net_namespace.h>
+#include <linux/uaccess.h>
+#include "br_private.h"
+
+static int get_bridge_ifindices(struct net *net, int *indices, int num)
+{
+	struct net_device *dev;
+	int i = 0;
+
+	rcu_read_lock();
+	for_each_netdev_rcu(net, dev) {
+		if (i >= num)
+			break;
+		if (netif_is_bridge_master(dev))
+			indices[i++] = dev->ifindex;
+	}
+	rcu_read_unlock();
+
+	return i;
+}
+
+/* called with RTNL */
+static void get_port_ifindices(struct net_bridge *br, int *ifindices, int num)
+{
+	struct net_bridge_port *p;
+
+	list_for_each_entry(p, &br->port_list, list) {
+		if (p->port_no < num)
+			ifindices[p->port_no] = p->dev->ifindex;
+	}
+}
+
+/*
+ * Format up to a page worth of forwarding table entries
+ * userbuf -- where to copy result
+ * maxnum  -- maximum number of entries desired
+ *            (limited to a page for sanity)
+ * offset  -- number of records to skip
+ */
+static int get_fdb_entries(struct net_bridge *br, void __user *userbuf,
+			   unsigned long maxnum, unsigned long offset)
+{
+	int num;
+	void *buf;
+	size_t size;
+
+	/* Clamp size to PAGE_SIZE, test maxnum to avoid overflow */
+	if (maxnum > PAGE_SIZE/sizeof(struct __fdb_entry))
+		maxnum = PAGE_SIZE/sizeof(struct __fdb_entry);
+
+	size = maxnum * sizeof(struct __fdb_entry);
+
+	buf = kmalloc(size, GFP_USER);
+	if (!buf)
+		return -ENOMEM;
+
+	num = br_fdb_fillbuf(br, buf, maxnum, offset);
+	if (num > 0) {
+		if (copy_to_user(userbuf, buf,
+				 array_size(num, sizeof(struct __fdb_entry))))
+			num = -EFAULT;
+	}
+	kfree(buf);
+
+	return num;
+}
+
+/* called with RTNL */
+static int add_del_if(struct net_bridge *br, int ifindex, int isadd)
+{
+	struct net *net = dev_net(br->dev);
+	struct net_device *dev;
+	int ret;
+
+	if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
+		return -EPERM;
+
+	dev = __dev_get_by_index(net, ifindex);
+	if (dev == NULL)
+		return -EINVAL;
+
+	if (isadd)
+		ret = br_add_if(br, dev, NULL);
+	else
+		ret = br_del_if(br, dev);
+
+	return ret;
+}
+
+#define BR_UARGS_MAX 4
+static int br_dev_read_uargs(unsigned long *args, size_t nr_args,
+			     void __user **argp, void __user *data)
+{
+	int ret;
+
+	if (nr_args < 2 || nr_args > BR_UARGS_MAX)
+		return -EINVAL;
+
+	if (in_compat_syscall()) {
+		unsigned int cargs[BR_UARGS_MAX];
+		int i;
+
+		ret = copy_from_user(cargs, data, nr_args * sizeof(*cargs));
+		if (ret)
+			goto fault;
+
+		for (i = 0; i < nr_args; ++i)
+			args[i] = cargs[i];
+
+		*argp = compat_ptr(args[1]);
+	} else {
+		ret = copy_from_user(args, data, nr_args * sizeof(*args));
+		if (ret)
+			goto fault;
+		*argp = (void __user *)args[1];
+	}
+
+	return 0;
+fault:
+	return -EFAULT;
+}
+
+/*
+ * Legacy ioctl's through SIOCDEVPRIVATE
+ * This interface is deprecated because it was too difficult
+ * to do the translation for 32/64bit ioctl compatibility.
+ */
+int br_dev_siocdevprivate(struct net_device *dev, struct ifreq *rq,
+			  void __user *data, int cmd)
+{
+	struct net_bridge *br = netdev_priv(dev);
+	struct net_bridge_port *p = NULL;
+	unsigned long args[4];
+	void __user *argp;
+	int ret;
+
+	ret = br_dev_read_uargs(args, ARRAY_SIZE(args), &argp, data);
+	if (ret)
+		return ret;
+
+	switch (args[0]) {
+	case BRCTL_ADD_IF:
+	case BRCTL_DEL_IF:
+		return add_del_if(br, args[1], args[0] == BRCTL_ADD_IF);
+
+	case BRCTL_GET_BRIDGE_INFO:
+	{
+		struct __bridge_info b;
+
+		memset(&b, 0, sizeof(struct __bridge_info));
+		rcu_read_lock();
+		memcpy(&b.designated_root, &br->designated_root, 8);
+		memcpy(&b.bridge_id, &br->bridge_id, 8);
+		b.root_path_cost = br->root_path_cost;
+		b.max_age = jiffies_to_clock_t(br->max_age);
+		b.hello_time = jiffies_to_clock_t(br->hello_time);
+		b.forward_delay = br->forward_delay;
+		b.bridge_max_age = br->bridge_max_age;
+		b.bridge_hello_time = br->bridge_hello_time;
+		b.bridge_forward_delay = jiffies_to_clock_t(br->bridge_forward_delay);
+		b.topology_change = br->topology_change;
+		b.topology_change_detected = br->topology_change_detected;
+		b.root_port = br->root_port;
+
+		b.stp_enabled = (br->stp_enabled != BR_NO_STP);
+		b.ageing_time = jiffies_to_clock_t(br->ageing_time);
+		b.hello_timer_value = br_timer_value(&br->hello_timer);
+		b.tcn_timer_value = br_timer_value(&br->tcn_timer);
+		b.topology_change_timer_value = br_timer_value(&br->topology_change_timer);
+		b.gc_timer_value = br_timer_value(&br->gc_work.timer);
+		rcu_read_unlock();
+
+		if (copy_to_user((void __user *)args[1], &b, sizeof(b)))
+			return -EFAULT;
+
+		return 0;
+	}
+
+	case BRCTL_GET_PORT_LIST:
+	{
+		int num, *indices;
+
+		num = args[2];
+		if (num < 0)
+			return -EINVAL;
+		if (num == 0)
+			num = 256;
+		if (num > BR_MAX_PORTS)
+			num = BR_MAX_PORTS;
+
+		indices = kcalloc(num, sizeof(int), GFP_KERNEL);
+		if (indices == NULL)
+			return -ENOMEM;
+
+		get_port_ifindices(br, indices, num);
+		if (copy_to_user(argp, indices, array_size(num, sizeof(int))))
+			num =  -EFAULT;
+		kfree(indices);
+		return num;
+	}
+
+	case BRCTL_SET_BRIDGE_FORWARD_DELAY:
+		if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN))
+			return -EPERM;
+
+		ret = br_set_forward_delay(br, args[1]);
+		break;
+
+	case BRCTL_SET_BRIDGE_HELLO_TIME:
+		if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN))
+			return -EPERM;
+
+		ret = br_set_hello_time(br, args[1]);
+		break;
+
+	case BRCTL_SET_BRIDGE_MAX_AGE:
+		if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN))
+			return -EPERM;
+
+		ret = br_set_max_age(br, args[1]);
+		break;
+
+	case BRCTL_SET_AGEING_TIME:
+		if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN))
+			return -EPERM;
+
+		ret = br_set_ageing_time(br, args[1]);
+		break;
+
+	case BRCTL_GET_PORT_INFO:
+	{
+		struct __port_info p;
+		struct net_bridge_port *pt;
+
+		rcu_read_lock();
+		if ((pt = br_get_port(br, args[2])) == NULL) {
+			rcu_read_unlock();
+			return -EINVAL;
+		}
+
+		memset(&p, 0, sizeof(struct __port_info));
+		memcpy(&p.designated_root, &pt->designated_root, 8);
+		memcpy(&p.designated_bridge, &pt->designated_bridge, 8);
+		p.port_id = pt->port_id;
+		p.designated_port = pt->designated_port;
+		p.path_cost = pt->path_cost;
+		p.designated_cost = pt->designated_cost;
+		p.state = pt->state;
+		p.top_change_ack = pt->topology_change_ack;
+		p.config_pending = pt->config_pending;
+		p.message_age_timer_value = br_timer_value(&pt->message_age_timer);
+		p.forward_delay_timer_value = br_timer_value(&pt->forward_delay_timer);
+		p.hold_timer_value = br_timer_value(&pt->hold_timer);
+
+		rcu_read_unlock();
+
+		if (copy_to_user(argp, &p, sizeof(p)))
+			return -EFAULT;
+
+		return 0;
+	}
+
+	case BRCTL_SET_BRIDGE_STP_STATE:
+		if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN))
+			return -EPERM;
+
+		ret = br_stp_set_enabled(br, args[1], NULL);
+		break;
+
+	case BRCTL_SET_BRIDGE_PRIORITY:
+		if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN))
+			return -EPERM;
+
+		br_stp_set_bridge_priority(br, args[1]);
+		ret = 0;
+		break;
+
+	case BRCTL_SET_PORT_PRIORITY:
+	{
+		if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN))
+			return -EPERM;
+
+		spin_lock_bh(&br->lock);
+		if ((p = br_get_port(br, args[1])) == NULL)
+			ret = -EINVAL;
+		else
+			ret = br_stp_set_port_priority(p, args[2]);
+		spin_unlock_bh(&br->lock);
+		break;
+	}
+
+	case BRCTL_SET_PATH_COST:
+	{
+		if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN))
+			return -EPERM;
+
+		spin_lock_bh(&br->lock);
+		if ((p = br_get_port(br, args[1])) == NULL)
+			ret = -EINVAL;
+		else
+			ret = br_stp_set_path_cost(p, args[2]);
+		spin_unlock_bh(&br->lock);
+		break;
+	}
+
+	case BRCTL_GET_FDB_ENTRIES:
+		return get_fdb_entries(br, argp, args[2], args[3]);
+
+	default:
+		ret = -EOPNOTSUPP;
+	}
+
+	if (!ret) {
+		if (p)
+			br_ifinfo_notify(RTM_NEWLINK, NULL, p);
+		else
+			netdev_state_change(br->dev);
+	}
+
+	return ret;
+}
+
+static int old_deviceless(struct net *net, void __user *data)
+{
+	unsigned long args[3];
+	void __user *argp;
+	int ret;
+
+	ret = br_dev_read_uargs(args, ARRAY_SIZE(args), &argp, data);
+	if (ret)
+		return ret;
+
+	switch (args[0]) {
+	case BRCTL_GET_VERSION:
+		return BRCTL_VERSION;
+
+	case BRCTL_GET_BRIDGES:
+	{
+		int *indices;
+		int ret = 0;
+
+		if (args[2] >= 2048)
+			return -ENOMEM;
+		indices = kcalloc(args[2], sizeof(int), GFP_KERNEL);
+		if (indices == NULL)
+			return -ENOMEM;
+
+		args[2] = get_bridge_ifindices(net, indices, args[2]);
+
+		ret = copy_to_user(argp, indices,
+				   array_size(args[2], sizeof(int)))
+			? -EFAULT : args[2];
+
+		kfree(indices);
+		return ret;
+	}
+
+	case BRCTL_ADD_BRIDGE:
+	case BRCTL_DEL_BRIDGE:
+	{
+		char buf[IFNAMSIZ];
+
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
+			return -EPERM;
+
+		if (copy_from_user(buf, argp, IFNAMSIZ))
+			return -EFAULT;
+
+		buf[IFNAMSIZ-1] = 0;
+
+		if (args[0] == BRCTL_ADD_BRIDGE)
+			return br_add_bridge(net, buf);
+
+		return br_del_bridge(net, buf);
+	}
+	}
+
+	return -EOPNOTSUPP;
+}
+
+int br_ioctl_stub(struct net *net, struct net_bridge *br, unsigned int cmd,
+		  struct ifreq *ifr, void __user *uarg)
+{
+	int ret = -EOPNOTSUPP;
+
+	rtnl_lock();
+
+	switch (cmd) {
+	case SIOCGIFBR:
+	case SIOCSIFBR:
+		ret = old_deviceless(net, uarg);
+		break;
+	case SIOCBRADDBR:
+	case SIOCBRDELBR:
+	{
+		char buf[IFNAMSIZ];
+
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) {
+			ret = -EPERM;
+			break;
+		}
+
+		if (copy_from_user(buf, uarg, IFNAMSIZ)) {
+			ret = -EFAULT;
+			break;
+		}
+
+		buf[IFNAMSIZ-1] = 0;
+		if (cmd == SIOCBRADDBR)
+			ret = br_add_bridge(net, buf);
+		else
+			ret = br_del_bridge(net, buf);
+	}
+		break;
+	case SIOCBRADDIF:
+	case SIOCBRDELIF:
+		ret = add_del_if(br, ifr->ifr_ifindex, cmd == SIOCBRADDIF);
+		break;
+	}
+
+	rtnl_unlock();
+
+	return ret;
+}