kernel/linux.git/include/uapi/linux/xfrm.h, branch v6.19.11

xfrm: netlink: add config (netlink) options

2024-12-05T09:01:15+00:00

Add netlink options for configuring IP-TFS SAs. Signed-off-by: Christian Hopps Tested-by: Antony Antony Signed-off-by: Steffen Klassert

xfrm: Add support for per cpu xfrm state handling.

2024-10-29T10:56:00+00:00

Currently all flows for a certain SA must be processed by the same cpu to avoid packet reordering and lock contention of the xfrm state lock. To get rid of this limitation, the IETF standardized per cpu SAs in RFC 9611. This patch implements the xfrm part of it. We add the cpu as a lookup key for xfrm states and a config option to generate acquire messages for each cpu. With that, we can have on each cpu a SA with identical traffic selector so that flows can be processed in parallel on all cpus. Signed-off-by: Steffen Klassert Tested-by: Antony Antony Tested-by: Tobias Brunner

xfrm: support sending NAT keepalives in ESP in UDP states

2024-06-26T11:22:42+00:00

Add the ability to send out RFC-3948 NAT keepalives from the xfrm stack. To use, Userspace sets an XFRM_NAT_KEEPALIVE_INTERVAL integer property when creating XFRM outbound states which denotes the number of seconds between keepalive messages. Keepalive messages are sent from a per net delayed work which iterates over the xfrm states. The logic is guarded by the xfrm state spinlock due to the xfrm state walk iterator. Possible future enhancements: - Adding counters to keep track of sent keepalives. - deduplicate NAT keepalives between states sharing the same nat keepalive parameters. - provisioning hardware offloads for devices capable of implementing this. - revise xfrm state list to use an rcu list in order to avoid running this under spinlock. Suggested-by: Paul Wouters Tested-by: Paul Wouters Tested-by: Antony Antony Signed-off-by: Eyal Birger Signed-off-by: Steffen Klassert

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2024-05-09T17:01:01+00:00

Cross-merge networking fixes after downstream PR. No conflicts. Adjacent changes: drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c 35d92abfbad8 ("net: hns3: fix kernel crash when devlink reload during initialization") 2a1a1a7b5fd7 ("net: hns3: add command queue trace for hns3") Signed-off-by: Jakub Kicinski

xfrm: Add Direction to the SA in or out

2024-05-01T08:05:11+00:00

This patch introduces the 'dir' attribute, 'in' or 'out', to the xfrm_state, SA, enhancing usability by delineating the scope of values based on direction. An input SA will restrict values pertinent to input, effectively segregating them from output-related values. And an output SA will restrict attributes for output. This change aims to streamline the configuration process and improve the overall consistency of SA attributes during configuration. This feature sets the groundwork for future patches, including the upcoming IP-TFS patch. Signed-off-by: Antony Antony Reviewed-by: Sabrina Dubroca Signed-off-by: Steffen Klassert

xfrm: Correct spelling mistake in xfrm.h comment

2024-04-29T05:52:40+00:00

A spelling error was found in the comment section of include/uapi/linux/xfrm.h. Since this header file is copied to many userspace programs and undergoes Debian spellcheck, it's preferable to fix it in upstream rather than downstream having exceptions. This commit fixes the spelling mistake. Fixes: df71837d5024 ("[LSM-IPSec]: Security association restriction.") Signed-off-by: Antony Antony Reviewed-by: Jiri Pirko Signed-off-by: Steffen Klassert

xfrm: Annotate struct xfrm_sec_ctx with __counted_by

2023-10-05T06:18:19+00:00

Prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). As found with Coccinelle[1], add __counted_by for struct xfrm_sec_ctx. Cc: Steffen Klassert Cc: Herbert Xu Cc: "David S. Miller" Cc: netdev@vger.kernel.org Link: https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci [1] Signed-off-by: Kees Cook Reviewed-by: Gustavo A. R. Silva Signed-off-by: Steffen Klassert

xfrm: add new packet offload flag

2022-12-05T09:30:47+00:00

In the next patches, the xfrm core code will be extended to support new type of offload - packet offload. In that mode, both policy and state should be specially configured in order to perform whole offloaded data path. Full offload takes care of encryption, decryption, encapsulation and other operations with headers. As this mode is new for XFRM policy flow, we can "start fresh" with flag bits and release first and second bit for future use. Reviewed-by: Raed Salem Signed-off-by: Leon Romanovsky Signed-off-by: Steffen Klassert

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec

2022-08-24T11:51:50+00:00

Steffen Klassert says: ==================== pull request (net): ipsec 2022-08-24 1) Fix a refcount leak in __xfrm_policy_check. From Xin Xiong. 2) Revert "xfrm: update SA curlft.use_time". This violates RFC 2367. From Antony Antony. 3) Fix a comment on XFRMA_LASTUSED. From Antony Antony. 4) x->lastused is not cloned in xfrm_do_migrate. Fix from Antony Antony. 5) Serialize the calls to xfrm_probe_algs. From Herbert Xu. 6) Fix a null pointer dereference of dst->dev on a metadata dst in xfrm_lookup_with_ifid. From Nikolay Aleksandrov. Please pull or let me know if there are problems. ==================== Signed-off-by: David S. Miller

Merge tag 'net-next-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

2022-08-03T23:29:08+00:00

Pull networking changes from Paolo Abeni: "Core: - Refactor the forward memory allocation to better cope with memory pressure with many open sockets, moving from a per socket cache to a per-CPU one - Replace rwlocks with RCU for better fairness in ping, raw sockets and IP multicast router. - Network-side support for IO uring zero-copy send. - A few skb drop reason improvements, including codegen the source file with string mapping instead of using macro magic. - Rename reference tracking helpers to a more consistent netdev_* schema. - Adapt u64_stats_t type to address load/store tearing issues. - Refine debug helper usage to reduce the log noise caused by bots. BPF: - Improve socket map performance, avoiding skb cloning on read operation. - Add support for 64 bits enum, to match types exposed by kernel. - Introduce support for sleepable uprobes program. - Introduce support for enum textual representation in libbpf. - New helpers to implement synproxy with eBPF/XDP. - Improve loop performances, inlining indirect calls when possible. - Removed all the deprecated libbpf APIs. - Implement new eBPF-based LSM flavor. - Add type match support, which allow accurate queries to the eBPF used types. - A few TCP congetsion control framework usability improvements. - Add new infrastructure to manipulate CT entries via eBPF programs. - Allow for livepatch (KLP) and BPF trampolines to attach to the same kernel function. Protocols: - Introduce per network namespace lookup tables for unix sockets, increasing scalability and reducing contention. - Preparation work for Wi-Fi 7 Multi-Link Operation (MLO) support. - Add support to forciby close TIME_WAIT TCP sockets via user-space tools. - Significant performance improvement for the TLS 1.3 receive path, both for zero-copy and not-zero-copy. - Support for changing the initial MTPCP subflow priority/backup status - Introduce virtually contingus buffers for sockets over RDMA, to cope better with memory pressure. - Extend CAN ethtool support with timestamping capabilities - Refactor CAN build infrastructure to allow building only the needed features. Driver API: - Remove devlink mutex to allow parallel commands on multiple links. - Add support for pause stats in distributed switch. - Implement devlink helpers to query and flash line cards. - New helper for phy mode to register conversion. New hardware / drivers: - Ethernet DSA driver for the rockchip mt7531 on BPI-R2 Pro. - Ethernet DSA driver for the Renesas RZ/N1 A5PSW switch. - Ethernet DSA driver for the Microchip LAN937x switch. - Ethernet PHY driver for the Aquantia AQR113C EPHY. - CAN driver for the OBD-II ELM327 interface. - CAN driver for RZ/N1 SJA1000 CAN controller. - Bluetooth: Infineon CYW55572 Wi-Fi plus Bluetooth combo device. Drivers: - Intel Ethernet NICs: - i40e: add support for vlan pruning - i40e: add support for XDP framented packets - ice: improved vlan offload support - ice: add support for PPPoE offload - Mellanox Ethernet (mlx5) - refactor packet steering offload for performance and scalability - extend support for TC offload - refactor devlink code to clean-up the locking schema - support stacked vlans for bridge offloads - use TLS objects pool to improve connection rate - Netronome Ethernet NICs (nfp): - extend support for IPv6 fields mangling offload - add support for vepa mode in HW bridge - better support for virtio data path acceleration (VDPA) - enable TSO by default - Microsoft vNIC driver (mana) - add support for XDP redirect - Others Ethernet drivers: - bonding: add per-port priority support - microchip lan743x: extend phy support - Fungible funeth: support UDP segmentation offload and XDP xmit - Solarflare EF100: add support for virtual function representors - MediaTek SoC: add XDP support - Mellanox Ethernet/IB switch (mlxsw): - dropped support for unreleased H/W (XM router). - improved stats accuracy - unified bridge model coversion improving scalability (parts 1-6) - support for PTP in Spectrum-2 asics - Broadcom PHYs - add PTP support for BCM54210E - add support for the BCM53128 internal PHY - Marvell Ethernet switches (prestera): - implement support for multicast forwarding offload - Embedded Ethernet switches: - refactor OcteonTx MAC filter for better scalability - improve TC H/W offload for the Felix driver - refactor the Microchip ksz8 and ksz9477 drivers to share the probe code (parts 1, 2), add support for phylink mac configuration - Other WiFi: - Microchip wilc1000: diable WEP support and enable WPA3 - Atheros ath10k: encapsulation offload support Old code removal: - Neterion vxge ethernet driver: this is untouched since more than 10 years" * tag 'net-next-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1890 commits) doc: sfp-phylink: Fix a broken reference wireguard: selftests: support UML wireguard: allowedips: don't corrupt stack when detecting overflow wireguard: selftests: update config fragments wireguard: ratelimiter: use hrtimer in selftest net/mlx5e: xsk: Discard unaligned XSK frames on striding RQ net: usb: ax88179_178a: Bind only to vendor-specific interface selftests: net: fix IOAM test skip return code net: usb: make USB_RTL8153_ECM non user configurable net: marvell: prestera: remove reduntant code octeontx2-pf: Reduce minimum mtu size to 60 net: devlink: Fix missing mutex_unlock() call net/tls: Remove redundant workqueue flush before destroy net: txgbe: Fix an error handling path in txgbe_probe() net: dsa: Fix spelling mistakes and cleanup code Documentation: devlink: add add devlink-selftests to the table of contents dccp: put dccp_qpolicy_full() and dccp_qpolicy_push() in the same lock net: ionic: fix error check for vlan flags in ionic_set_nic_features() net: ice: fix error NETIF_F_HW_VLAN_CTAG_FILTER check in ice_vsi_sync_fltr() nfp: flower: add support for tunnel offload without key ID ...