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(). ... --- fs/isofs/isofs.h | 201 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 201 insertions(+) create mode 100644 fs/isofs/isofs.h (limited to 'fs/isofs/isofs.h') diff --git a/fs/isofs/isofs.h b/fs/isofs/isofs.h new file mode 100644 index 000000000..dcdc191ed --- /dev/null +++ b/fs/isofs/isofs.h @@ -0,0 +1,201 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#include +#include +#include +#include +#include + +enum isofs_file_format { + isofs_file_normal = 0, + isofs_file_sparse = 1, + isofs_file_compressed = 2, +}; + +/* + * iso fs inode data in memory + */ +struct iso_inode_info { + unsigned long i_iget5_block; + unsigned long i_iget5_offset; + unsigned int i_first_extent; + unsigned char i_file_format; + unsigned char i_format_parm[3]; + unsigned long i_next_section_block; + unsigned long i_next_section_offset; + off_t i_section_size; + struct inode vfs_inode; +}; + +/* + * iso9660 super-block data in memory + */ +struct isofs_sb_info { + unsigned long s_ninodes; + unsigned long s_nzones; + unsigned long s_firstdatazone; + unsigned long s_log_zone_size; + unsigned long s_max_size; + + int s_rock_offset; /* offset of SUSP fields within SU area */ + s32 s_sbsector; + unsigned char s_joliet_level; + unsigned char s_mapping; + unsigned char s_check; + unsigned char s_session; + unsigned int s_high_sierra:1; + unsigned int s_rock:2; + unsigned int s_cruft:1; /* Broken disks with high byte of length + * containing junk */ + unsigned int s_nocompress:1; + unsigned int s_hide:1; + unsigned int s_showassoc:1; + unsigned int s_overriderockperm:1; + unsigned int s_uid_set:1; + unsigned int s_gid_set:1; + + umode_t s_fmode; + umode_t s_dmode; + kgid_t s_gid; + kuid_t s_uid; + struct nls_table *s_nls_iocharset; /* Native language support table */ +}; + +#define ISOFS_INVALID_MODE ((umode_t) -1) + +static inline struct isofs_sb_info *ISOFS_SB(struct super_block *sb) +{ + return sb->s_fs_info; +} + +static inline struct iso_inode_info *ISOFS_I(struct inode *inode) +{ + return container_of(inode, struct iso_inode_info, vfs_inode); +} + +static inline int isonum_711(u8 *p) +{ + return *p; +} +static inline int isonum_712(s8 *p) +{ + return *p; +} +static inline unsigned int isonum_721(u8 *p) +{ + return get_unaligned_le16(p); +} +static inline unsigned int isonum_722(u8 *p) +{ + return get_unaligned_be16(p); +} +static inline unsigned int isonum_723(u8 *p) +{ + /* Ignore bigendian datum due to broken mastering programs */ + return get_unaligned_le16(p); +} +static inline unsigned int isonum_731(u8 *p) +{ + return get_unaligned_le32(p); +} +static inline unsigned int isonum_732(u8 *p) +{ + return get_unaligned_be32(p); +} +static inline unsigned int isonum_733(u8 *p) +{ + /* Ignore bigendian datum due to broken mastering programs */ + return get_unaligned_le32(p); +} +extern int iso_date(u8 *, int); + +struct inode; /* To make gcc happy */ + +extern int parse_rock_ridge_inode(struct iso_directory_record *, struct inode *, int relocated); +extern int get_rock_ridge_filename(struct iso_directory_record *, char *, struct inode *); +extern int isofs_name_translate(struct iso_directory_record *, char *, struct inode *); + +int get_joliet_filename(struct iso_directory_record *, unsigned char *, struct inode *); +int get_acorn_filename(struct iso_directory_record *, char *, struct inode *); + +extern struct dentry *isofs_lookup(struct inode *, struct dentry *, unsigned int flags); +extern struct buffer_head *isofs_bread(struct inode *, sector_t); +extern int isofs_get_blocks(struct inode *, sector_t, struct buffer_head **, unsigned long); + +struct inode *__isofs_iget(struct super_block *sb, + unsigned long block, + unsigned long offset, + int relocated); + +static inline struct inode *isofs_iget(struct super_block *sb, + unsigned long block, + unsigned long offset) +{ + return __isofs_iget(sb, block, offset, 0); +} + +static inline struct inode *isofs_iget_reloc(struct super_block *sb, + unsigned long block, + unsigned long offset) +{ + return __isofs_iget(sb, block, offset, 1); +} + +/* Because the inode number is no longer relevant to finding the + * underlying meta-data for an inode, we are free to choose a more + * convenient 32-bit number as the inode number. The inode numbering + * scheme was recommended by Sergey Vlasov and Eric Lammerts. */ +static inline unsigned long isofs_get_ino(unsigned long block, + unsigned long offset, + unsigned long bufbits) +{ + return (block << (bufbits - 5)) | (offset >> 5); +} + +/* Every directory can have many redundant directory entries scattered + * throughout the directory tree. First there is the directory entry + * with the name of the directory stored in the parent directory. + * Then, there is the "." directory entry stored in the directory + * itself. Finally, there are possibly many ".." directory entries + * stored in all the subdirectories. + * + * In order for the NFS get_parent() method to work and for the + * general consistency of the dcache, we need to make sure the + * "i_iget5_block" and "i_iget5_offset" all point to exactly one of + * the many redundant entries for each directory. We normalize the + * block and offset by always making them point to the "." directory. + * + * Notice that we do not use the entry for the directory with the name + * that is located in the parent directory. Even though choosing this + * first directory is more natural, it is much easier to find the "." + * entry in the NFS get_parent() method because it is implicitly + * encoded in the "extent + ext_attr_length" fields of _all_ the + * redundant entries for the directory. Thus, it can always be + * reached regardless of which directory entry you have in hand. + * + * This works because the "." entry is simply the first directory + * record when you start reading the file that holds all the directory + * records, and this file starts at "extent + ext_attr_length" blocks. + * Because the "." entry is always the first entry listed in the + * directories file, the normalized "offset" value is always 0. + * + * You should pass the directory entry in "de". On return, "block" + * and "offset" will hold normalized values. Only directories are + * affected making it safe to call even for non-directory file + * types. */ +static inline void +isofs_normalize_block_and_offset(struct iso_directory_record* de, + unsigned long *block, + unsigned long *offset) +{ + /* Only directories are normalized. */ + if (de->flags[0] & 2) { + *offset = 0; + *block = (unsigned long)isonum_733(de->extent) + + (unsigned long)isonum_711(de->ext_attr_length); + } +} + +extern const struct inode_operations isofs_dir_inode_operations; +extern const struct file_operations isofs_dir_operations; +extern const struct address_space_operations isofs_symlink_aops; +extern const struct export_operations isofs_export_ops; -- cgit v1.2.3