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(). ... --- crypto/pcrypt.c | 382 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 382 insertions(+) create mode 100644 crypto/pcrypt.c (limited to 'crypto/pcrypt.c') diff --git a/crypto/pcrypt.c b/crypto/pcrypt.c new file mode 100644 index 000000000..8c1d0ca41 --- /dev/null +++ b/crypto/pcrypt.c @@ -0,0 +1,382 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * pcrypt - Parallel crypto wrapper. + * + * Copyright (C) 2009 secunet Security Networks AG + * Copyright (C) 2009 Steffen Klassert + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static struct padata_instance *pencrypt; +static struct padata_instance *pdecrypt; +static struct kset *pcrypt_kset; + +struct pcrypt_instance_ctx { + struct crypto_aead_spawn spawn; + struct padata_shell *psenc; + struct padata_shell *psdec; + atomic_t tfm_count; +}; + +struct pcrypt_aead_ctx { + struct crypto_aead *child; + unsigned int cb_cpu; +}; + +static inline struct pcrypt_instance_ctx *pcrypt_tfm_ictx( + struct crypto_aead *tfm) +{ + return aead_instance_ctx(aead_alg_instance(tfm)); +} + +static int pcrypt_aead_setkey(struct crypto_aead *parent, + const u8 *key, unsigned int keylen) +{ + struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(parent); + + return crypto_aead_setkey(ctx->child, key, keylen); +} + +static int pcrypt_aead_setauthsize(struct crypto_aead *parent, + unsigned int authsize) +{ + struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(parent); + + return crypto_aead_setauthsize(ctx->child, authsize); +} + +static void pcrypt_aead_serial(struct padata_priv *padata) +{ + struct pcrypt_request *preq = pcrypt_padata_request(padata); + struct aead_request *req = pcrypt_request_ctx(preq); + + aead_request_complete(req->base.data, padata->info); +} + +static void pcrypt_aead_done(void *data, int err) +{ + struct aead_request *req = data; + struct pcrypt_request *preq = aead_request_ctx(req); + struct padata_priv *padata = pcrypt_request_padata(preq); + + padata->info = err; + + padata_do_serial(padata); +} + +static void pcrypt_aead_enc(struct padata_priv *padata) +{ + struct pcrypt_request *preq = pcrypt_padata_request(padata); + struct aead_request *req = pcrypt_request_ctx(preq); + int ret; + + ret = crypto_aead_encrypt(req); + + if (ret == -EINPROGRESS) + return; + + padata->info = ret; + padata_do_serial(padata); +} + +static int pcrypt_aead_encrypt(struct aead_request *req) +{ + int err; + struct pcrypt_request *preq = aead_request_ctx(req); + struct aead_request *creq = pcrypt_request_ctx(preq); + struct padata_priv *padata = pcrypt_request_padata(preq); + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(aead); + u32 flags = aead_request_flags(req); + struct pcrypt_instance_ctx *ictx; + + ictx = pcrypt_tfm_ictx(aead); + + memset(padata, 0, sizeof(struct padata_priv)); + + padata->parallel = pcrypt_aead_enc; + padata->serial = pcrypt_aead_serial; + + aead_request_set_tfm(creq, ctx->child); + aead_request_set_callback(creq, flags & ~CRYPTO_TFM_REQ_MAY_SLEEP, + pcrypt_aead_done, req); + aead_request_set_crypt(creq, req->src, req->dst, + req->cryptlen, req->iv); + aead_request_set_ad(creq, req->assoclen); + + err = padata_do_parallel(ictx->psenc, padata, &ctx->cb_cpu); + if (!err) + return -EINPROGRESS; + + return err; +} + +static void pcrypt_aead_dec(struct padata_priv *padata) +{ + struct pcrypt_request *preq = pcrypt_padata_request(padata); + struct aead_request *req = pcrypt_request_ctx(preq); + int ret; + + ret = crypto_aead_decrypt(req); + + if (ret == -EINPROGRESS) + return; + + padata->info = ret; + padata_do_serial(padata); +} + +static int pcrypt_aead_decrypt(struct aead_request *req) +{ + int err; + struct pcrypt_request *preq = aead_request_ctx(req); + struct aead_request *creq = pcrypt_request_ctx(preq); + struct padata_priv *padata = pcrypt_request_padata(preq); + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(aead); + u32 flags = aead_request_flags(req); + struct pcrypt_instance_ctx *ictx; + + ictx = pcrypt_tfm_ictx(aead); + + memset(padata, 0, sizeof(struct padata_priv)); + + padata->parallel = pcrypt_aead_dec; + padata->serial = pcrypt_aead_serial; + + aead_request_set_tfm(creq, ctx->child); + aead_request_set_callback(creq, flags & ~CRYPTO_TFM_REQ_MAY_SLEEP, + pcrypt_aead_done, req); + aead_request_set_crypt(creq, req->src, req->dst, + req->cryptlen, req->iv); + aead_request_set_ad(creq, req->assoclen); + + err = padata_do_parallel(ictx->psdec, padata, &ctx->cb_cpu); + if (!err) + return -EINPROGRESS; + + return err; +} + +static int pcrypt_aead_init_tfm(struct crypto_aead *tfm) +{ + int cpu, cpu_index; + struct aead_instance *inst = aead_alg_instance(tfm); + struct pcrypt_instance_ctx *ictx = aead_instance_ctx(inst); + struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct crypto_aead *cipher; + + cpu_index = (unsigned int)atomic_inc_return(&ictx->tfm_count) % + cpumask_weight(cpu_online_mask); + + ctx->cb_cpu = cpumask_first(cpu_online_mask); + for (cpu = 0; cpu < cpu_index; cpu++) + ctx->cb_cpu = cpumask_next(ctx->cb_cpu, cpu_online_mask); + + cipher = crypto_spawn_aead(&ictx->spawn); + + if (IS_ERR(cipher)) + return PTR_ERR(cipher); + + ctx->child = cipher; + crypto_aead_set_reqsize(tfm, sizeof(struct pcrypt_request) + + sizeof(struct aead_request) + + crypto_aead_reqsize(cipher)); + + return 0; +} + +static void pcrypt_aead_exit_tfm(struct crypto_aead *tfm) +{ + struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(tfm); + + crypto_free_aead(ctx->child); +} + +static void pcrypt_free(struct aead_instance *inst) +{ + struct pcrypt_instance_ctx *ctx = aead_instance_ctx(inst); + + crypto_drop_aead(&ctx->spawn); + padata_free_shell(ctx->psdec); + padata_free_shell(ctx->psenc); + kfree(inst); +} + +static int pcrypt_init_instance(struct crypto_instance *inst, + struct crypto_alg *alg) +{ + if (snprintf(inst->alg.cra_driver_name, CRYPTO_MAX_ALG_NAME, + "pcrypt(%s)", alg->cra_driver_name) >= CRYPTO_MAX_ALG_NAME) + return -ENAMETOOLONG; + + memcpy(inst->alg.cra_name, alg->cra_name, CRYPTO_MAX_ALG_NAME); + + inst->alg.cra_priority = alg->cra_priority + 100; + inst->alg.cra_blocksize = alg->cra_blocksize; + inst->alg.cra_alignmask = alg->cra_alignmask; + + return 0; +} + +static int pcrypt_create_aead(struct crypto_template *tmpl, struct rtattr **tb, + struct crypto_attr_type *algt) +{ + struct pcrypt_instance_ctx *ctx; + struct aead_instance *inst; + struct aead_alg *alg; + u32 mask = crypto_algt_inherited_mask(algt); + int err; + + inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL); + if (!inst) + return -ENOMEM; + + err = -ENOMEM; + + ctx = aead_instance_ctx(inst); + ctx->psenc = padata_alloc_shell(pencrypt); + if (!ctx->psenc) + goto err_free_inst; + + ctx->psdec = padata_alloc_shell(pdecrypt); + if (!ctx->psdec) + goto err_free_inst; + + err = crypto_grab_aead(&ctx->spawn, aead_crypto_instance(inst), + crypto_attr_alg_name(tb[1]), 0, mask); + if (err) + goto err_free_inst; + + alg = crypto_spawn_aead_alg(&ctx->spawn); + err = pcrypt_init_instance(aead_crypto_instance(inst), &alg->base); + if (err) + goto err_free_inst; + + inst->alg.base.cra_flags |= CRYPTO_ALG_ASYNC; + + inst->alg.ivsize = crypto_aead_alg_ivsize(alg); + inst->alg.maxauthsize = crypto_aead_alg_maxauthsize(alg); + + inst->alg.base.cra_ctxsize = sizeof(struct pcrypt_aead_ctx); + + inst->alg.init = pcrypt_aead_init_tfm; + inst->alg.exit = pcrypt_aead_exit_tfm; + + inst->alg.setkey = pcrypt_aead_setkey; + inst->alg.setauthsize = pcrypt_aead_setauthsize; + inst->alg.encrypt = pcrypt_aead_encrypt; + inst->alg.decrypt = pcrypt_aead_decrypt; + + inst->free = pcrypt_free; + + err = aead_register_instance(tmpl, inst); + if (err) { +err_free_inst: + pcrypt_free(inst); + } + return err; +} + +static int pcrypt_create(struct crypto_template *tmpl, struct rtattr **tb) +{ + struct crypto_attr_type *algt; + + algt = crypto_get_attr_type(tb); + if (IS_ERR(algt)) + return PTR_ERR(algt); + + switch (algt->type & algt->mask & CRYPTO_ALG_TYPE_MASK) { + case CRYPTO_ALG_TYPE_AEAD: + return pcrypt_create_aead(tmpl, tb, algt); + } + + return -EINVAL; +} + +static int pcrypt_sysfs_add(struct padata_instance *pinst, const char *name) +{ + int ret; + + pinst->kobj.kset = pcrypt_kset; + ret = kobject_add(&pinst->kobj, NULL, "%s", name); + if (!ret) + kobject_uevent(&pinst->kobj, KOBJ_ADD); + + return ret; +} + +static int pcrypt_init_padata(struct padata_instance **pinst, const char *name) +{ + int ret = -ENOMEM; + + *pinst = padata_alloc(name); + if (!*pinst) + return ret; + + ret = pcrypt_sysfs_add(*pinst, name); + if (ret) + padata_free(*pinst); + + return ret; +} + +static struct crypto_template pcrypt_tmpl = { + .name = "pcrypt", + .create = pcrypt_create, + .module = THIS_MODULE, +}; + +static int __init pcrypt_init(void) +{ + int err = -ENOMEM; + + pcrypt_kset = kset_create_and_add("pcrypt", NULL, kernel_kobj); + if (!pcrypt_kset) + goto err; + + err = pcrypt_init_padata(&pencrypt, "pencrypt"); + if (err) + goto err_unreg_kset; + + err = pcrypt_init_padata(&pdecrypt, "pdecrypt"); + if (err) + goto err_deinit_pencrypt; + + return crypto_register_template(&pcrypt_tmpl); + +err_deinit_pencrypt: + padata_free(pencrypt); +err_unreg_kset: + kset_unregister(pcrypt_kset); +err: + return err; +} + +static void __exit pcrypt_exit(void) +{ + crypto_unregister_template(&pcrypt_tmpl); + + padata_free(pencrypt); + padata_free(pdecrypt); + + kset_unregister(pcrypt_kset); +} + +subsys_initcall(pcrypt_init); +module_exit(pcrypt_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Steffen Klassert "); +MODULE_DESCRIPTION("Parallel crypto wrapper"); +MODULE_ALIAS_CRYPTO("pcrypt"); -- cgit v1.2.3