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(). ... --- drivers/crypto/ccp/ccp-crypto-rsa.c | 293 ++++++++++++++++++++++++++++++++++++ 1 file changed, 293 insertions(+) create mode 100644 drivers/crypto/ccp/ccp-crypto-rsa.c (limited to 'drivers/crypto/ccp/ccp-crypto-rsa.c') diff --git a/drivers/crypto/ccp/ccp-crypto-rsa.c b/drivers/crypto/ccp/ccp-crypto-rsa.c new file mode 100644 index 000000000..a14f85512 --- /dev/null +++ b/drivers/crypto/ccp/ccp-crypto-rsa.c @@ -0,0 +1,293 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * AMD Cryptographic Coprocessor (CCP) RSA crypto API support + * + * Copyright (C) 2017 Advanced Micro Devices, Inc. + * + * Author: Gary R Hook + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "ccp-crypto.h" + +static inline struct akcipher_request *akcipher_request_cast( + struct crypto_async_request *req) +{ + return container_of(req, struct akcipher_request, base); +} + +static inline int ccp_copy_and_save_keypart(u8 **kpbuf, unsigned int *kplen, + const u8 *buf, size_t sz) +{ + int nskip; + + for (nskip = 0; nskip < sz; nskip++) + if (buf[nskip]) + break; + *kplen = sz - nskip; + *kpbuf = kmemdup(buf + nskip, *kplen, GFP_KERNEL); + if (!*kpbuf) + return -ENOMEM; + + return 0; +} + +static int ccp_rsa_complete(struct crypto_async_request *async_req, int ret) +{ + struct akcipher_request *req = akcipher_request_cast(async_req); + struct ccp_rsa_req_ctx *rctx = akcipher_request_ctx_dma(req); + + if (ret) + return ret; + + req->dst_len = rctx->cmd.u.rsa.key_size >> 3; + + return 0; +} + +static unsigned int ccp_rsa_maxsize(struct crypto_akcipher *tfm) +{ + struct ccp_ctx *ctx = akcipher_tfm_ctx_dma(tfm); + + return ctx->u.rsa.n_len; +} + +static int ccp_rsa_crypt(struct akcipher_request *req, bool encrypt) +{ + struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req); + struct ccp_ctx *ctx = akcipher_tfm_ctx_dma(tfm); + struct ccp_rsa_req_ctx *rctx = akcipher_request_ctx_dma(req); + int ret = 0; + + memset(&rctx->cmd, 0, sizeof(rctx->cmd)); + INIT_LIST_HEAD(&rctx->cmd.entry); + rctx->cmd.engine = CCP_ENGINE_RSA; + + rctx->cmd.u.rsa.key_size = ctx->u.rsa.key_len; /* in bits */ + if (encrypt) { + rctx->cmd.u.rsa.exp = &ctx->u.rsa.e_sg; + rctx->cmd.u.rsa.exp_len = ctx->u.rsa.e_len; + } else { + rctx->cmd.u.rsa.exp = &ctx->u.rsa.d_sg; + rctx->cmd.u.rsa.exp_len = ctx->u.rsa.d_len; + } + rctx->cmd.u.rsa.mod = &ctx->u.rsa.n_sg; + rctx->cmd.u.rsa.mod_len = ctx->u.rsa.n_len; + rctx->cmd.u.rsa.src = req->src; + rctx->cmd.u.rsa.src_len = req->src_len; + rctx->cmd.u.rsa.dst = req->dst; + + ret = ccp_crypto_enqueue_request(&req->base, &rctx->cmd); + + return ret; +} + +static int ccp_rsa_encrypt(struct akcipher_request *req) +{ + return ccp_rsa_crypt(req, true); +} + +static int ccp_rsa_decrypt(struct akcipher_request *req) +{ + return ccp_rsa_crypt(req, false); +} + +static int ccp_check_key_length(unsigned int len) +{ + /* In bits */ + if (len < 8 || len > 4096) + return -EINVAL; + return 0; +} + +static void ccp_rsa_free_key_bufs(struct ccp_ctx *ctx) +{ + /* Clean up old key data */ + kfree_sensitive(ctx->u.rsa.e_buf); + ctx->u.rsa.e_buf = NULL; + ctx->u.rsa.e_len = 0; + kfree_sensitive(ctx->u.rsa.n_buf); + ctx->u.rsa.n_buf = NULL; + ctx->u.rsa.n_len = 0; + kfree_sensitive(ctx->u.rsa.d_buf); + ctx->u.rsa.d_buf = NULL; + ctx->u.rsa.d_len = 0; +} + +static int ccp_rsa_setkey(struct crypto_akcipher *tfm, const void *key, + unsigned int keylen, bool private) +{ + struct ccp_ctx *ctx = akcipher_tfm_ctx_dma(tfm); + struct rsa_key raw_key; + int ret; + + ccp_rsa_free_key_bufs(ctx); + memset(&raw_key, 0, sizeof(raw_key)); + + /* Code borrowed from crypto/rsa.c */ + if (private) + ret = rsa_parse_priv_key(&raw_key, key, keylen); + else + ret = rsa_parse_pub_key(&raw_key, key, keylen); + if (ret) + goto n_key; + + ret = ccp_copy_and_save_keypart(&ctx->u.rsa.n_buf, &ctx->u.rsa.n_len, + raw_key.n, raw_key.n_sz); + if (ret) + goto key_err; + sg_init_one(&ctx->u.rsa.n_sg, ctx->u.rsa.n_buf, ctx->u.rsa.n_len); + + ctx->u.rsa.key_len = ctx->u.rsa.n_len << 3; /* convert to bits */ + if (ccp_check_key_length(ctx->u.rsa.key_len)) { + ret = -EINVAL; + goto key_err; + } + + ret = ccp_copy_and_save_keypart(&ctx->u.rsa.e_buf, &ctx->u.rsa.e_len, + raw_key.e, raw_key.e_sz); + if (ret) + goto key_err; + sg_init_one(&ctx->u.rsa.e_sg, ctx->u.rsa.e_buf, ctx->u.rsa.e_len); + + if (private) { + ret = ccp_copy_and_save_keypart(&ctx->u.rsa.d_buf, + &ctx->u.rsa.d_len, + raw_key.d, raw_key.d_sz); + if (ret) + goto key_err; + sg_init_one(&ctx->u.rsa.d_sg, + ctx->u.rsa.d_buf, ctx->u.rsa.d_len); + } + + return 0; + +key_err: + ccp_rsa_free_key_bufs(ctx); + +n_key: + return ret; +} + +static int ccp_rsa_setprivkey(struct crypto_akcipher *tfm, const void *key, + unsigned int keylen) +{ + return ccp_rsa_setkey(tfm, key, keylen, true); +} + +static int ccp_rsa_setpubkey(struct crypto_akcipher *tfm, const void *key, + unsigned int keylen) +{ + return ccp_rsa_setkey(tfm, key, keylen, false); +} + +static int ccp_rsa_init_tfm(struct crypto_akcipher *tfm) +{ + struct ccp_ctx *ctx = akcipher_tfm_ctx_dma(tfm); + + akcipher_set_reqsize_dma(tfm, sizeof(struct ccp_rsa_req_ctx)); + ctx->complete = ccp_rsa_complete; + + return 0; +} + +static void ccp_rsa_exit_tfm(struct crypto_akcipher *tfm) +{ + struct ccp_ctx *ctx = akcipher_tfm_ctx_dma(tfm); + + ccp_rsa_free_key_bufs(ctx); +} + +static struct akcipher_alg ccp_rsa_defaults = { + .encrypt = ccp_rsa_encrypt, + .decrypt = ccp_rsa_decrypt, + .set_pub_key = ccp_rsa_setpubkey, + .set_priv_key = ccp_rsa_setprivkey, + .max_size = ccp_rsa_maxsize, + .init = ccp_rsa_init_tfm, + .exit = ccp_rsa_exit_tfm, + .base = { + .cra_name = "rsa", + .cra_driver_name = "rsa-ccp", + .cra_priority = CCP_CRA_PRIORITY, + .cra_module = THIS_MODULE, + .cra_ctxsize = 2 * sizeof(struct ccp_ctx) + CRYPTO_DMA_PADDING, + }, +}; + +struct ccp_rsa_def { + unsigned int version; + const char *name; + const char *driver_name; + unsigned int reqsize; + struct akcipher_alg *alg_defaults; +}; + +static struct ccp_rsa_def rsa_algs[] = { + { + .version = CCP_VERSION(3, 0), + .name = "rsa", + .driver_name = "rsa-ccp", + .reqsize = sizeof(struct ccp_rsa_req_ctx), + .alg_defaults = &ccp_rsa_defaults, + } +}; + +static int ccp_register_rsa_alg(struct list_head *head, + const struct ccp_rsa_def *def) +{ + struct ccp_crypto_akcipher_alg *ccp_alg; + struct akcipher_alg *alg; + int ret; + + ccp_alg = kzalloc(sizeof(*ccp_alg), GFP_KERNEL); + if (!ccp_alg) + return -ENOMEM; + + INIT_LIST_HEAD(&ccp_alg->entry); + + alg = &ccp_alg->alg; + *alg = *def->alg_defaults; + snprintf(alg->base.cra_name, CRYPTO_MAX_ALG_NAME, "%s", def->name); + snprintf(alg->base.cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s", + def->driver_name); + ret = crypto_register_akcipher(alg); + if (ret) { + pr_err("%s akcipher algorithm registration error (%d)\n", + alg->base.cra_name, ret); + kfree(ccp_alg); + return ret; + } + + list_add(&ccp_alg->entry, head); + + return 0; +} + +int ccp_register_rsa_algs(struct list_head *head) +{ + int i, ret; + unsigned int ccpversion = ccp_version(); + + /* Register the RSA algorithm in standard mode + * This works for CCP v3 and later + */ + for (i = 0; i < ARRAY_SIZE(rsa_algs); i++) { + if (rsa_algs[i].version > ccpversion) + continue; + ret = ccp_register_rsa_alg(head, &rsa_algs[i]); + if (ret) + return ret; + } + + return 0; +} -- cgit v1.2.3