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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /fs/ksmbd/smb2ops.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
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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(). ...
Diffstat (limited to 'fs/ksmbd/smb2ops.c')
-rw-r--r--fs/ksmbd/smb2ops.c320
1 files changed, 320 insertions, 0 deletions
diff --git a/fs/ksmbd/smb2ops.c b/fs/ksmbd/smb2ops.c
new file mode 100644
index 000000000..e40130247
--- /dev/null
+++ b/fs/ksmbd/smb2ops.c
@@ -0,0 +1,320 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2016 Namjae Jeon <linkinjeon@kernel.org>
+ * Copyright (C) 2018 Samsung Electronics Co., Ltd.
+ */
+
+#include <linux/slab.h>
+#include "glob.h"
+
+#include "auth.h"
+#include "connection.h"
+#include "smb_common.h"
+#include "server.h"
+
+static struct smb_version_values smb21_server_values = {
+ .version_string = SMB21_VERSION_STRING,
+ .protocol_id = SMB21_PROT_ID,
+ .capabilities = SMB2_GLOBAL_CAP_LARGE_MTU,
+ .max_read_size = SMB21_DEFAULT_IOSIZE,
+ .max_write_size = SMB21_DEFAULT_IOSIZE,
+ .max_trans_size = SMB21_DEFAULT_IOSIZE,
+ .max_credits = SMB2_MAX_CREDITS,
+ .large_lock_type = 0,
+ .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE,
+ .shared_lock_type = SMB2_LOCKFLAG_SHARED,
+ .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
+ .header_size = sizeof(struct smb2_hdr),
+ .max_header_size = MAX_SMB2_HDR_SIZE,
+ .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
+ .lock_cmd = SMB2_LOCK,
+ .cap_unix = 0,
+ .cap_nt_find = SMB2_NT_FIND,
+ .cap_large_files = SMB2_LARGE_FILES,
+ .create_lease_size = sizeof(struct create_lease),
+ .create_durable_size = sizeof(struct create_durable_rsp),
+ .create_mxac_size = sizeof(struct create_mxac_rsp),
+ .create_disk_id_size = sizeof(struct create_disk_id_rsp),
+ .create_posix_size = sizeof(struct create_posix_rsp),
+};
+
+static struct smb_version_values smb30_server_values = {
+ .version_string = SMB30_VERSION_STRING,
+ .protocol_id = SMB30_PROT_ID,
+ .capabilities = SMB2_GLOBAL_CAP_LARGE_MTU,
+ .max_read_size = SMB3_DEFAULT_IOSIZE,
+ .max_write_size = SMB3_DEFAULT_IOSIZE,
+ .max_trans_size = SMB3_DEFAULT_TRANS_SIZE,
+ .max_credits = SMB2_MAX_CREDITS,
+ .large_lock_type = 0,
+ .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE,
+ .shared_lock_type = SMB2_LOCKFLAG_SHARED,
+ .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
+ .header_size = sizeof(struct smb2_hdr),
+ .max_header_size = MAX_SMB2_HDR_SIZE,
+ .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
+ .lock_cmd = SMB2_LOCK,
+ .cap_unix = 0,
+ .cap_nt_find = SMB2_NT_FIND,
+ .cap_large_files = SMB2_LARGE_FILES,
+ .create_lease_size = sizeof(struct create_lease_v2),
+ .create_durable_size = sizeof(struct create_durable_rsp),
+ .create_durable_v2_size = sizeof(struct create_durable_v2_rsp),
+ .create_mxac_size = sizeof(struct create_mxac_rsp),
+ .create_disk_id_size = sizeof(struct create_disk_id_rsp),
+ .create_posix_size = sizeof(struct create_posix_rsp),
+};
+
+static struct smb_version_values smb302_server_values = {
+ .version_string = SMB302_VERSION_STRING,
+ .protocol_id = SMB302_PROT_ID,
+ .capabilities = SMB2_GLOBAL_CAP_LARGE_MTU,
+ .max_read_size = SMB3_DEFAULT_IOSIZE,
+ .max_write_size = SMB3_DEFAULT_IOSIZE,
+ .max_trans_size = SMB3_DEFAULT_TRANS_SIZE,
+ .max_credits = SMB2_MAX_CREDITS,
+ .large_lock_type = 0,
+ .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE,
+ .shared_lock_type = SMB2_LOCKFLAG_SHARED,
+ .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
+ .header_size = sizeof(struct smb2_hdr),
+ .max_header_size = MAX_SMB2_HDR_SIZE,
+ .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
+ .lock_cmd = SMB2_LOCK,
+ .cap_unix = 0,
+ .cap_nt_find = SMB2_NT_FIND,
+ .cap_large_files = SMB2_LARGE_FILES,
+ .create_lease_size = sizeof(struct create_lease_v2),
+ .create_durable_size = sizeof(struct create_durable_rsp),
+ .create_durable_v2_size = sizeof(struct create_durable_v2_rsp),
+ .create_mxac_size = sizeof(struct create_mxac_rsp),
+ .create_disk_id_size = sizeof(struct create_disk_id_rsp),
+ .create_posix_size = sizeof(struct create_posix_rsp),
+};
+
+static struct smb_version_values smb311_server_values = {
+ .version_string = SMB311_VERSION_STRING,
+ .protocol_id = SMB311_PROT_ID,
+ .capabilities = SMB2_GLOBAL_CAP_LARGE_MTU,
+ .max_read_size = SMB3_DEFAULT_IOSIZE,
+ .max_write_size = SMB3_DEFAULT_IOSIZE,
+ .max_trans_size = SMB3_DEFAULT_TRANS_SIZE,
+ .max_credits = SMB2_MAX_CREDITS,
+ .large_lock_type = 0,
+ .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE,
+ .shared_lock_type = SMB2_LOCKFLAG_SHARED,
+ .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
+ .header_size = sizeof(struct smb2_hdr),
+ .max_header_size = MAX_SMB2_HDR_SIZE,
+ .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
+ .lock_cmd = SMB2_LOCK,
+ .cap_unix = 0,
+ .cap_nt_find = SMB2_NT_FIND,
+ .cap_large_files = SMB2_LARGE_FILES,
+ .create_lease_size = sizeof(struct create_lease_v2),
+ .create_durable_size = sizeof(struct create_durable_rsp),
+ .create_durable_v2_size = sizeof(struct create_durable_v2_rsp),
+ .create_mxac_size = sizeof(struct create_mxac_rsp),
+ .create_disk_id_size = sizeof(struct create_disk_id_rsp),
+ .create_posix_size = sizeof(struct create_posix_rsp),
+};
+
+static struct smb_version_ops smb2_0_server_ops = {
+ .get_cmd_val = get_smb2_cmd_val,
+ .init_rsp_hdr = init_smb2_rsp_hdr,
+ .set_rsp_status = set_smb2_rsp_status,
+ .allocate_rsp_buf = smb2_allocate_rsp_buf,
+ .set_rsp_credits = smb2_set_rsp_credits,
+ .check_user_session = smb2_check_user_session,
+ .get_ksmbd_tcon = smb2_get_ksmbd_tcon,
+ .is_sign_req = smb2_is_sign_req,
+ .check_sign_req = smb2_check_sign_req,
+ .set_sign_rsp = smb2_set_sign_rsp
+};
+
+static struct smb_version_ops smb3_0_server_ops = {
+ .get_cmd_val = get_smb2_cmd_val,
+ .init_rsp_hdr = init_smb2_rsp_hdr,
+ .set_rsp_status = set_smb2_rsp_status,
+ .allocate_rsp_buf = smb2_allocate_rsp_buf,
+ .set_rsp_credits = smb2_set_rsp_credits,
+ .check_user_session = smb2_check_user_session,
+ .get_ksmbd_tcon = smb2_get_ksmbd_tcon,
+ .is_sign_req = smb2_is_sign_req,
+ .check_sign_req = smb3_check_sign_req,
+ .set_sign_rsp = smb3_set_sign_rsp,
+ .generate_signingkey = ksmbd_gen_smb30_signingkey,
+ .generate_encryptionkey = ksmbd_gen_smb30_encryptionkey,
+ .is_transform_hdr = smb3_is_transform_hdr,
+ .decrypt_req = smb3_decrypt_req,
+ .encrypt_resp = smb3_encrypt_resp
+};
+
+static struct smb_version_ops smb3_11_server_ops = {
+ .get_cmd_val = get_smb2_cmd_val,
+ .init_rsp_hdr = init_smb2_rsp_hdr,
+ .set_rsp_status = set_smb2_rsp_status,
+ .allocate_rsp_buf = smb2_allocate_rsp_buf,
+ .set_rsp_credits = smb2_set_rsp_credits,
+ .check_user_session = smb2_check_user_session,
+ .get_ksmbd_tcon = smb2_get_ksmbd_tcon,
+ .is_sign_req = smb2_is_sign_req,
+ .check_sign_req = smb3_check_sign_req,
+ .set_sign_rsp = smb3_set_sign_rsp,
+ .generate_signingkey = ksmbd_gen_smb311_signingkey,
+ .generate_encryptionkey = ksmbd_gen_smb311_encryptionkey,
+ .is_transform_hdr = smb3_is_transform_hdr,
+ .decrypt_req = smb3_decrypt_req,
+ .encrypt_resp = smb3_encrypt_resp
+};
+
+static struct smb_version_cmds smb2_0_server_cmds[NUMBER_OF_SMB2_COMMANDS] = {
+ [SMB2_NEGOTIATE_HE] = { .proc = smb2_negotiate_request, },
+ [SMB2_SESSION_SETUP_HE] = { .proc = smb2_sess_setup, },
+ [SMB2_TREE_CONNECT_HE] = { .proc = smb2_tree_connect,},
+ [SMB2_TREE_DISCONNECT_HE] = { .proc = smb2_tree_disconnect,},
+ [SMB2_LOGOFF_HE] = { .proc = smb2_session_logoff,},
+ [SMB2_CREATE_HE] = { .proc = smb2_open},
+ [SMB2_QUERY_INFO_HE] = { .proc = smb2_query_info},
+ [SMB2_QUERY_DIRECTORY_HE] = { .proc = smb2_query_dir},
+ [SMB2_CLOSE_HE] = { .proc = smb2_close},
+ [SMB2_ECHO_HE] = { .proc = smb2_echo},
+ [SMB2_SET_INFO_HE] = { .proc = smb2_set_info},
+ [SMB2_READ_HE] = { .proc = smb2_read},
+ [SMB2_WRITE_HE] = { .proc = smb2_write},
+ [SMB2_FLUSH_HE] = { .proc = smb2_flush},
+ [SMB2_CANCEL_HE] = { .proc = smb2_cancel},
+ [SMB2_LOCK_HE] = { .proc = smb2_lock},
+ [SMB2_IOCTL_HE] = { .proc = smb2_ioctl},
+ [SMB2_OPLOCK_BREAK_HE] = { .proc = smb2_oplock_break},
+ [SMB2_CHANGE_NOTIFY_HE] = { .proc = smb2_notify},
+};
+
+/**
+ * init_smb2_1_server() - initialize a smb server connection with smb2.1
+ * command dispatcher
+ * @conn: connection instance
+ */
+void init_smb2_1_server(struct ksmbd_conn *conn)
+{
+ conn->vals = &smb21_server_values;
+ conn->ops = &smb2_0_server_ops;
+ conn->cmds = smb2_0_server_cmds;
+ conn->max_cmds = ARRAY_SIZE(smb2_0_server_cmds);
+ conn->signing_algorithm = SIGNING_ALG_HMAC_SHA256_LE;
+
+ if (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB2_LEASES)
+ conn->vals->capabilities |= SMB2_GLOBAL_CAP_LEASING;
+}
+
+/**
+ * init_smb3_0_server() - initialize a smb server connection with smb3.0
+ * command dispatcher
+ * @conn: connection instance
+ */
+void init_smb3_0_server(struct ksmbd_conn *conn)
+{
+ conn->vals = &smb30_server_values;
+ conn->ops = &smb3_0_server_ops;
+ conn->cmds = smb2_0_server_cmds;
+ conn->max_cmds = ARRAY_SIZE(smb2_0_server_cmds);
+ conn->signing_algorithm = SIGNING_ALG_AES_CMAC_LE;
+
+ if (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB2_LEASES)
+ conn->vals->capabilities |= SMB2_GLOBAL_CAP_LEASING;
+
+ if (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB2_ENCRYPTION &&
+ conn->cli_cap & SMB2_GLOBAL_CAP_ENCRYPTION)
+ conn->vals->capabilities |= SMB2_GLOBAL_CAP_ENCRYPTION;
+
+ if (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB3_MULTICHANNEL)
+ conn->vals->capabilities |= SMB2_GLOBAL_CAP_MULTI_CHANNEL;
+}
+
+/**
+ * init_smb3_02_server() - initialize a smb server connection with smb3.02
+ * command dispatcher
+ * @conn: connection instance
+ */
+void init_smb3_02_server(struct ksmbd_conn *conn)
+{
+ conn->vals = &smb302_server_values;
+ conn->ops = &smb3_0_server_ops;
+ conn->cmds = smb2_0_server_cmds;
+ conn->max_cmds = ARRAY_SIZE(smb2_0_server_cmds);
+ conn->signing_algorithm = SIGNING_ALG_AES_CMAC_LE;
+
+ if (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB2_LEASES)
+ conn->vals->capabilities |= SMB2_GLOBAL_CAP_LEASING;
+
+ if (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB2_ENCRYPTION ||
+ (!(server_conf.flags & KSMBD_GLOBAL_FLAG_SMB2_ENCRYPTION_OFF) &&
+ conn->cli_cap & SMB2_GLOBAL_CAP_ENCRYPTION))
+ conn->vals->capabilities |= SMB2_GLOBAL_CAP_ENCRYPTION;
+
+ if (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB3_MULTICHANNEL)
+ conn->vals->capabilities |= SMB2_GLOBAL_CAP_MULTI_CHANNEL;
+}
+
+/**
+ * init_smb3_11_server() - initialize a smb server connection with smb3.11
+ * command dispatcher
+ * @conn: connection instance
+ */
+int init_smb3_11_server(struct ksmbd_conn *conn)
+{
+ conn->vals = &smb311_server_values;
+ conn->ops = &smb3_11_server_ops;
+ conn->cmds = smb2_0_server_cmds;
+ conn->max_cmds = ARRAY_SIZE(smb2_0_server_cmds);
+ conn->signing_algorithm = SIGNING_ALG_AES_CMAC_LE;
+
+ if (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB2_LEASES)
+ conn->vals->capabilities |= SMB2_GLOBAL_CAP_LEASING;
+
+ if (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB2_ENCRYPTION ||
+ (!(server_conf.flags & KSMBD_GLOBAL_FLAG_SMB2_ENCRYPTION_OFF) &&
+ conn->cli_cap & SMB2_GLOBAL_CAP_ENCRYPTION))
+ conn->vals->capabilities |= SMB2_GLOBAL_CAP_ENCRYPTION;
+
+ if (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB3_MULTICHANNEL)
+ conn->vals->capabilities |= SMB2_GLOBAL_CAP_MULTI_CHANNEL;
+
+ INIT_LIST_HEAD(&conn->preauth_sess_table);
+ return 0;
+}
+
+void init_smb2_max_read_size(unsigned int sz)
+{
+ sz = clamp_val(sz, SMB3_MIN_IOSIZE, SMB3_MAX_IOSIZE);
+ smb21_server_values.max_read_size = sz;
+ smb30_server_values.max_read_size = sz;
+ smb302_server_values.max_read_size = sz;
+ smb311_server_values.max_read_size = sz;
+}
+
+void init_smb2_max_write_size(unsigned int sz)
+{
+ sz = clamp_val(sz, SMB3_MIN_IOSIZE, SMB3_MAX_IOSIZE);
+ smb21_server_values.max_write_size = sz;
+ smb30_server_values.max_write_size = sz;
+ smb302_server_values.max_write_size = sz;
+ smb311_server_values.max_write_size = sz;
+}
+
+void init_smb2_max_trans_size(unsigned int sz)
+{
+ sz = clamp_val(sz, SMB3_MIN_IOSIZE, SMB3_MAX_IOSIZE);
+ smb21_server_values.max_trans_size = sz;
+ smb30_server_values.max_trans_size = sz;
+ smb302_server_values.max_trans_size = sz;
+ smb311_server_values.max_trans_size = sz;
+}
+
+void init_smb2_max_credits(unsigned int sz)
+{
+ smb21_server_values.max_credits = sz;
+ smb30_server_values.max_credits = sz;
+ smb302_server_values.max_credits = sz;
+ smb311_server_values.max_credits = sz;
+}