aboutsummaryrefslogtreecommitdiff
path: root/fs/ntfs/volume.h
diff options
context:
space:
mode:
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/ntfs/volume.h
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip
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 '')
-rw-r--r--fs/ntfs/volume.h164
1 files changed, 164 insertions, 0 deletions
diff --git a/fs/ntfs/volume.h b/fs/ntfs/volume.h
new file mode 100644
index 000000000..930a9ae8a
--- /dev/null
+++ b/fs/ntfs/volume.h
@@ -0,0 +1,164 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * volume.h - Defines for volume structures in NTFS Linux kernel driver. Part
+ * of the Linux-NTFS project.
+ *
+ * Copyright (c) 2001-2006 Anton Altaparmakov
+ * Copyright (c) 2002 Richard Russon
+ */
+
+#ifndef _LINUX_NTFS_VOLUME_H
+#define _LINUX_NTFS_VOLUME_H
+
+#include <linux/rwsem.h>
+#include <linux/uidgid.h>
+
+#include "types.h"
+#include "layout.h"
+
+/*
+ * The NTFS in memory super block structure.
+ */
+typedef struct {
+ /*
+ * FIXME: Reorder to have commonly used together element within the
+ * same cache line, aiming at a cache line size of 32 bytes. Aim for
+ * 64 bytes for less commonly used together elements. Put most commonly
+ * used elements to front of structure. Obviously do this only when the
+ * structure has stabilized... (AIA)
+ */
+ /* Device specifics. */
+ struct super_block *sb; /* Pointer back to the super_block. */
+ LCN nr_blocks; /* Number of sb->s_blocksize bytes
+ sized blocks on the device. */
+ /* Configuration provided by user at mount time. */
+ unsigned long flags; /* Miscellaneous flags, see below. */
+ kuid_t uid; /* uid that files will be mounted as. */
+ kgid_t gid; /* gid that files will be mounted as. */
+ umode_t fmask; /* The mask for file permissions. */
+ umode_t dmask; /* The mask for directory
+ permissions. */
+ u8 mft_zone_multiplier; /* Initial mft zone multiplier. */
+ u8 on_errors; /* What to do on filesystem errors. */
+ /* NTFS bootsector provided information. */
+ u16 sector_size; /* in bytes */
+ u8 sector_size_bits; /* log2(sector_size) */
+ u32 cluster_size; /* in bytes */
+ u32 cluster_size_mask; /* cluster_size - 1 */
+ u8 cluster_size_bits; /* log2(cluster_size) */
+ u32 mft_record_size; /* in bytes */
+ u32 mft_record_size_mask; /* mft_record_size - 1 */
+ u8 mft_record_size_bits; /* log2(mft_record_size) */
+ u32 index_record_size; /* in bytes */
+ u32 index_record_size_mask; /* index_record_size - 1 */
+ u8 index_record_size_bits; /* log2(index_record_size) */
+ LCN nr_clusters; /* Volume size in clusters == number of
+ bits in lcn bitmap. */
+ LCN mft_lcn; /* Cluster location of mft data. */
+ LCN mftmirr_lcn; /* Cluster location of copy of mft. */
+ u64 serial_no; /* The volume serial number. */
+ /* Mount specific NTFS information. */
+ u32 upcase_len; /* Number of entries in upcase[]. */
+ ntfschar *upcase; /* The upcase table. */
+
+ s32 attrdef_size; /* Size of the attribute definition
+ table in bytes. */
+ ATTR_DEF *attrdef; /* Table of attribute definitions.
+ Obtained from FILE_AttrDef. */
+
+#ifdef NTFS_RW
+ /* Variables used by the cluster and mft allocators. */
+ s64 mft_data_pos; /* Mft record number at which to
+ allocate the next mft record. */
+ LCN mft_zone_start; /* First cluster of the mft zone. */
+ LCN mft_zone_end; /* First cluster beyond the mft zone. */
+ LCN mft_zone_pos; /* Current position in the mft zone. */
+ LCN data1_zone_pos; /* Current position in the first data
+ zone. */
+ LCN data2_zone_pos; /* Current position in the second data
+ zone. */
+#endif /* NTFS_RW */
+
+ struct inode *mft_ino; /* The VFS inode of $MFT. */
+
+ struct inode *mftbmp_ino; /* Attribute inode for $MFT/$BITMAP. */
+ struct rw_semaphore mftbmp_lock; /* Lock for serializing accesses to the
+ mft record bitmap ($MFT/$BITMAP). */
+#ifdef NTFS_RW
+ struct inode *mftmirr_ino; /* The VFS inode of $MFTMirr. */
+ int mftmirr_size; /* Size of mft mirror in mft records. */
+
+ struct inode *logfile_ino; /* The VFS inode of $LogFile. */
+#endif /* NTFS_RW */
+
+ struct inode *lcnbmp_ino; /* The VFS inode of $Bitmap. */
+ struct rw_semaphore lcnbmp_lock; /* Lock for serializing accesses to the
+ cluster bitmap ($Bitmap/$DATA). */
+
+ struct inode *vol_ino; /* The VFS inode of $Volume. */
+ VOLUME_FLAGS vol_flags; /* Volume flags. */
+ u8 major_ver; /* Ntfs major version of volume. */
+ u8 minor_ver; /* Ntfs minor version of volume. */
+
+ struct inode *root_ino; /* The VFS inode of the root
+ directory. */
+ struct inode *secure_ino; /* The VFS inode of $Secure (NTFS3.0+
+ only, otherwise NULL). */
+ struct inode *extend_ino; /* The VFS inode of $Extend (NTFS3.0+
+ only, otherwise NULL). */
+#ifdef NTFS_RW
+ /* $Quota stuff is NTFS3.0+ specific. Unused/NULL otherwise. */
+ struct inode *quota_ino; /* The VFS inode of $Quota. */
+ struct inode *quota_q_ino; /* Attribute inode for $Quota/$Q. */
+ /* $UsnJrnl stuff is NTFS3.0+ specific. Unused/NULL otherwise. */
+ struct inode *usnjrnl_ino; /* The VFS inode of $UsnJrnl. */
+ struct inode *usnjrnl_max_ino; /* Attribute inode for $UsnJrnl/$Max. */
+ struct inode *usnjrnl_j_ino; /* Attribute inode for $UsnJrnl/$J. */
+#endif /* NTFS_RW */
+ struct nls_table *nls_map;
+} ntfs_volume;
+
+/*
+ * Defined bits for the flags field in the ntfs_volume structure.
+ */
+typedef enum {
+ NV_Errors, /* 1: Volume has errors, prevent remount rw. */
+ NV_ShowSystemFiles, /* 1: Return system files in ntfs_readdir(). */
+ NV_CaseSensitive, /* 1: Treat file names as case sensitive and
+ create filenames in the POSIX namespace.
+ Otherwise be case insensitive but still
+ create file names in POSIX namespace. */
+ NV_LogFileEmpty, /* 1: $LogFile journal is empty. */
+ NV_QuotaOutOfDate, /* 1: $Quota is out of date. */
+ NV_UsnJrnlStamped, /* 1: $UsnJrnl has been stamped. */
+ NV_SparseEnabled, /* 1: May create sparse files. */
+} ntfs_volume_flags;
+
+/*
+ * Macro tricks to expand the NVolFoo(), NVolSetFoo(), and NVolClearFoo()
+ * functions.
+ */
+#define DEFINE_NVOL_BIT_OPS(flag) \
+static inline int NVol##flag(ntfs_volume *vol) \
+{ \
+ return test_bit(NV_##flag, &(vol)->flags); \
+} \
+static inline void NVolSet##flag(ntfs_volume *vol) \
+{ \
+ set_bit(NV_##flag, &(vol)->flags); \
+} \
+static inline void NVolClear##flag(ntfs_volume *vol) \
+{ \
+ clear_bit(NV_##flag, &(vol)->flags); \
+}
+
+/* Emit the ntfs volume bitops functions. */
+DEFINE_NVOL_BIT_OPS(Errors)
+DEFINE_NVOL_BIT_OPS(ShowSystemFiles)
+DEFINE_NVOL_BIT_OPS(CaseSensitive)
+DEFINE_NVOL_BIT_OPS(LogFileEmpty)
+DEFINE_NVOL_BIT_OPS(QuotaOutOfDate)
+DEFINE_NVOL_BIT_OPS(UsnJrnlStamped)
+DEFINE_NVOL_BIT_OPS(SparseEnabled)
+
+#endif /* _LINUX_NTFS_VOLUME_H */