a1757f43e8
-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAmKoorkACgkQONu9yGCS aT7wAQ//XrRJAWmmj+Uc2UlQJti3FwrWwbMBMi65v3ST7Z21ru/EQA1oCg2dMNqr Oc42+UO5zkQ7V4nrbygXx0QcMkJYavrep4+GJjKCgYa5zQw+uzXOvzhkY8pFoSbC QnHpnYjW9JfbR/PrXzN7wQnES2UuGSqLW7669AQrcfdhuyMphOo2ypeyRTJYehnB qO5z8kZKFDp89jqXn06Bj6eC/wVhWZh69vi8w59LOsQgOA7ELqYWURLZpoHf8ipN fZwYdjh1Qaqo+NZBw93QNiVy+vbWkPKxdQEHQ1GLJbnHP6XDk8rgqsXpf6KGNDeZ Rabv7+77Fy3bLuDCR7gv0PDpoaas/mL1PfvofGC8ooJS0VdA6T88eKL9Dh5+fiu8 UuBtdCkvfEx0rKxbghuWEQiTFcIonsp1g24Z9Xk8NWCnUgxTHcwfqrwf3r0nAUbf DmQtq2OrVTwmRd/qPAc79aBtd3EUY0ZP7ZliOg3DI2d4ZtOS6TYL7Ocnky62qMpZ Q/vgyr/C1RhjRs7UKfAW+YmpD0SP5kz92J2mU9UM7/8qsKR2ykx78pKe2a8Zj5nU TONyfC5q1ctwA9KMxliMT7V7icnN9ofBs7BD698CxybP6q/itj4epYe6LT/zNUMS xEre3o0Uz//MZoiomFW03Js6RsjsdV8o4YD8IuHOLUSk+CY8aDg= =iJUA -----END PGP SIGNATURE----- Merge 4.19.247 into android-4.19-stable Changes in 4.19.247 binfmt_flat: do not stop relocating GOT entries prematurely on riscv ALSA: hda/realtek - Fix microphone noise on ASUS TUF B550M-PLUS USB: serial: option: add Quectel BG95 modem USB: new quirk for Dell Gen 2 devices ptrace/xtensa: Replace PT_SINGLESTEP with TIF_SINGLESTEP ptrace: Reimplement PTRACE_KILL by always sending SIGKILL btrfs: add "0x" prefix for unsupported optional features btrfs: repair super block num_devices automatically drm/virtio: fix NULL pointer dereference in virtio_gpu_conn_get_modes mwifiex: add mutex lock for call in mwifiex_dfs_chan_sw_work_queue b43legacy: Fix assigning negative value to unsigned variable b43: Fix assigning negative value to unsigned variable ipw2x00: Fix potential NULL dereference in libipw_xmit() ipv6: fix locking issues with loops over idev->addr_list fbcon: Consistently protect deferred_takeover with console_lock() ACPICA: Avoid cache flush inside virtual machines ALSA: jack: Access input_dev under mutex drm/amd/pm: fix double free in si_parse_power_table() ath9k: fix QCA9561 PA bias level media: venus: hfi: avoid null dereference in deinit media: pci: cx23885: Fix the error handling in cx23885_initdev() media: cx25821: Fix the warning when removing the module md/bitmap: don't set sb values if can't pass sanity check scsi: megaraid: Fix error check return value of register_chrdev() drm/plane: Move range check for format_count earlier drm/amd/pm: fix the compile warning ipv6: Don't send rs packets to the interface of ARPHRD_TUNNEL ASoC: dapm: Don't fold register value changes into notifications mlxsw: spectrum_dcb: Do not warn about priority changes ASoC: tscs454: Add endianness flag in snd_soc_component_driver s390/preempt: disable __preempt_count_add() optimization for PROFILE_ALL_BRANCHES dma-debug: change allocation mode from GFP_NOWAIT to GFP_ATIOMIC ipmi:ssif: Check for NULL msg when handling events and messages rtlwifi: Use pr_warn instead of WARN_ONCE media: cec-adap.c: fix is_configuring state openrisc: start CPU timer early in boot nvme-pci: fix a NULL pointer dereference in nvme_alloc_admin_tags ASoC: rt5645: Fix errorenous cleanup order net: phy: micrel: Allow probing without .driver_data media: exynos4-is: Fix compile warning hwmon: Make chip parameter for with_info API mandatory rxrpc: Return an error to sendmsg if call failed eth: tg3: silence the GCC 12 array-bounds warning ARM: dts: ox820: align interrupt controller node name with dtschema PM / devfreq: rk3399_dmc: Disable edev on remove() fs: jfs: fix possible NULL pointer dereference in dbFree() ARM: OMAP1: clock: Fix UART rate reporting algorithm fat: add ratelimit to fat*_ent_bread() ARM: versatile: Add missing of_node_put in dcscb_init ARM: dts: exynos: add atmel,24c128 fallback to Samsung EEPROM ARM: hisi: Add missing of_node_put after of_find_compatible_node PCI: Avoid pci_dev_lock() AB/BA deadlock with sriov_numvfs_store() tracing: incorrect isolate_mote_t cast in mm_vmscan_lru_isolate powerpc/xics: fix refcount leak in icp_opal_init() macintosh/via-pmu: Fix build failure when CONFIG_INPUT is disabled RDMA/hfi1: Prevent panic when SDMA is disabled drm: fix EDID struct for old ARM OABI format ath9k: fix ar9003_get_eepmisc drm/edid: fix invalid EDID extension block filtering drm/bridge: adv7511: clean up CEC adapter when probe fails ASoC: mediatek: Fix error handling in mt8173_max98090_dev_probe ASoC: mediatek: Fix missing of_node_put in mt2701_wm8960_machine_probe x86/delay: Fix the wrong asm constraint in delay_loop() drm/mediatek: Fix mtk_cec_mask() drm/vc4: txp: Don't set TXP_VSTART_AT_EOF drm/vc4: txp: Force alpha to be 0xff if it's disabled nl80211: show SSID for P2P_GO interfaces spi: spi-ti-qspi: Fix return value handling of wait_for_completion_timeout NFC: NULL out the dev->rfkill to prevent UAF efi: Add missing prototype for efi_capsule_setup_info HID: hid-led: fix maximum brightness for Dream Cheeky HID: elan: Fix potential double free in elan_input_configured spi: img-spfi: Fix pm_runtime_get_sync() error checking ath9k_htc: fix potential out of bounds access with invalid rxstatus->rs_keyix inotify: show inotify mask flags in proc fdinfo fsnotify: fix wrong lockdep annotations of: overlay: do not break notify on NOTIFY_{OK|STOP} scsi: ufs: core: Exclude UECxx from SFR dump list x86/pm: Fix false positive kmemleak report in msr_build_context() x86/speculation: Add missing prototype for unpriv_ebpf_notify() drm/msm/disp/dpu1: set vbif hw config to NULL to avoid use after memory free during pm runtime resume drm/msm/dsi: fix error checks and return values for DSI xmit functions drm/msm/hdmi: check return value after calling platform_get_resource_byname() drm/rockchip: vop: fix possible null-ptr-deref in vop_bind() x86: Fix return value of __setup handlers irqchip/aspeed-i2c-ic: Fix irq_of_parse_and_map() return value x86/mm: Cleanup the control_va_addr_alignment() __setup handler drm/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is detected drm/msm/mdp5: Return error code in mdp5_mixer_release when deadlock is detected drm/msm: return an error pointer in msm_gem_prime_get_sg_table() media: uvcvideo: Fix missing check to determine if element is found in list perf/amd/ibs: Use interrupt regs ip for stack unwinding ASoC: mxs-saif: Fix refcount leak in mxs_saif_probe regulator: pfuze100: Fix refcount leak in pfuze_parse_regulators_dt scripts/faddr2line: Fix overlapping text section failures media: st-delta: Fix PM disable depth imbalance in delta_probe media: exynos4-is: Change clk_disable to clk_disable_unprepare media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init media: vsp1: Fix offset calculation for plane cropping Bluetooth: fix dangling sco_conn and use-after-free in sco_sock_timeout m68k: math-emu: Fix dependencies of math emulation support sctp: read sk->sk_bound_dev_if once in sctp_rcv() ext4: reject the 'commit' option on ext2 filesystems drm: msm: fix possible memory leak in mdp5_crtc_cursor_set() ASoC: wm2000: fix missing clk_disable_unprepare() on error in wm2000_anc_transition() NFC: hci: fix sleep in atomic context bugs in nfc_hci_hcp_message_tx rxrpc: Fix listen() setting the bar too high for the prealloc rings rxrpc: Don't try to resend the request if we're receiving the reply soc: qcom: smp2p: Fix missing of_node_put() in smp2p_parse_ipc soc: qcom: smsm: Fix missing of_node_put() in smsm_parse_ipc PCI: cadence: Fix find_first_zero_bit() limit PCI: rockchip: Fix find_first_zero_bit() limit ARM: dts: bcm2835-rpi-zero-w: Fix GPIO line name for Wifi/BT ARM: dts: bcm2835-rpi-b: Fix GPIO line names crypto: marvell/cesa - ECB does not IV mfd: ipaq-micro: Fix error check return value of platform_get_irq() scsi: fcoe: Fix Wstringop-overflow warnings in fcoe_wwn_from_mac() firmware: arm_scmi: Fix list protocols enumeration in the base protocol pinctrl: mvebu: Fix irq_of_parse_and_map() return value drivers/base/node.c: fix compaction sysfs file leak dax: fix cache flush on PMD-mapped pages powerpc/8xx: export 'cpm_setbrg' for modules powerpc/idle: Fix return value of __setup() handler powerpc/4xx/cpm: Fix return value of __setup() handler proc: fix dentry/inode overinstantiating under /proc/${pid}/net tty: fix deadlock caused by calling printk() under tty_port->lock Input: sparcspkr - fix refcount leak in bbc_beep_probe powerpc/perf: Fix the threshold compare group constraint for power9 powerpc/fsl_rio: Fix refcount leak in fsl_rio_setup mailbox: forward the hrtimer if not queued and under a lock RDMA/hfi1: Prevent use of lock before it is initialized f2fs: fix dereference of stale list iterator after loop body iommu/mediatek: Add list_del in mtk_iommu_remove i2c: at91: use dma safe buffers i2c: at91: Initialize dma_buf in at91_twi_xfer() NFSv4/pNFS: Do not fail I/O when we fail to allocate the pNFS layout video: fbdev: clcdfb: Fix refcount leak in clcdfb_of_vram_setup dmaengine: stm32-mdma: remove GISR1 register iommu/amd: Increase timeout waiting for GA log enablement perf c2c: Use stdio interface if slang is not supported perf jevents: Fix event syntax error caused by ExtSel f2fs: fix deadloop in foreground GC wifi: mac80211: fix use-after-free in chanctx code iwlwifi: mvm: fix assert 1F04 upon reconfig fs-writeback: writeback_sb_inodes:Recalculate 'wrote' according skipped pages netfilter: nf_tables: disallow non-stateful expression in sets earlier ext4: fix use-after-free in ext4_rename_dir_prepare ext4: fix bug_on in ext4_writepages ext4: verify dir block before splitting it ext4: avoid cycles in directory h-tree tracing: Fix potential double free in create_var_ref() PCI/PM: Fix bridge_d3_blacklist[] Elo i2 overwrite of Gigabyte X299 PCI: qcom: Fix runtime PM imbalance on probe errors PCI: qcom: Fix unbalanced PHY init on probe errors dlm: fix plock invalid read dlm: fix missing lkb refcount handling ocfs2: dlmfs: fix error handling of user_dlm_destroy_lock scsi: dc395x: Fix a missing check on list iterator scsi: ufs: qcom: Add a readl() to make sure ref_clk gets enabled drm/amdgpu/cs: make commands with 0 chunks illegal behaviour. drm/nouveau/clk: Fix an incorrect NULL check on list iterator drm/bridge: analogix_dp: Grab runtime PM reference for DP-AUX md: fix an incorrect NULL check in does_sb_need_changing md: fix an incorrect NULL check in md_reload_sb media: coda: Fix reported H264 profile media: coda: Add more H264 levels for CODA960 RDMA/hfi1: Fix potential integer multiplication overflow errors irqchip/armada-370-xp: Do not touch Performance Counter Overflow on A375, A38x, A39x irqchip: irq-xtensa-mx: fix initial IRQ affinity mac80211: upgrade passive scan to active scan on DFS channels after beacon rx um: chan_user: Fix winch_tramp() return value um: Fix out-of-bounds read in LDT setup iommu/msm: Fix an incorrect NULL check on list iterator nodemask.h: fix compilation error with GCC12 hugetlb: fix huge_pmd_unshare address update rtl818x: Prevent using not initialized queues ASoC: rt5514: Fix event generation for "DSP Voice Wake Up" control carl9170: tx: fix an incorrect use of list iterator gma500: fix an incorrect NULL check on list iterator arm64: dts: qcom: ipq8074: fix the sleep clock frequency phy: qcom-qmp: fix struct clk leak on probe errors docs/conf.py: Cope with removal of language=None in Sphinx 5.0.0 dt-bindings: gpio: altera: correct interrupt-cells blk-iolatency: Fix inflight count imbalances and IO hangs on offline phy: qcom-qmp: fix reset-controller leak on probe errors RDMA/rxe: Generate a completion for unsupported/invalid opcode MIPS: IP27: Remove incorrect `cpu_has_fpu' override md: bcache: check the return value of kzalloc() in detached_dev_do_request() pcmcia: db1xxx_ss: restrict to MIPS_DB1XXX boards staging: greybus: codecs: fix type confusion of list iterator variable tty: goldfish: Use tty_port_destroy() to destroy port usb: usbip: fix a refcount leak in stub_probe() usb: usbip: add missing device lock on tweak configuration cmd USB: storage: karma: fix rio_karma_init return usb: musb: Fix missing of_node_put() in omap2430_probe pwm: lp3943: Fix duty calculation in case period was clamped rpmsg: qcom_smd: Fix irq_of_parse_and_map() return value usb: dwc3: pci: Fix pm_runtime_get_sync() error checking iio: adc: sc27xx: fix read big scale voltage not right rpmsg: qcom_smd: Fix returning 0 if irq_of_parse_and_map() fails coresight: cpu-debug: Replace mutex with mutex_trylock on panic notifier soc: rockchip: Fix refcount leak in rockchip_grf_init clocksource/drivers/riscv: Events are stopped during CPU suspend rtc: mt6397: check return value after calling platform_get_resource() serial: meson: acquire port->lock in startup() serial: 8250_fintek: Check SER_RS485_RTS_* only with RS485 serial: digicolor-usart: Don't allow CS5-6 serial: txx9: Don't allow CS5-6 serial: sh-sci: Don't allow CS5-6 serial: st-asc: Sanitize CSIZE and correct PARENB for CS7 serial: stm32-usart: Correct CSIZE, bits, and parity firmware: dmi-sysfs: Fix memory leak in dmi_sysfs_register_handle bus: ti-sysc: Fix warnings for unbind for serial clocksource/drivers/oxnas-rps: Fix irq_of_parse_and_map() return value s390/crypto: fix scatterwalk_unmap() callers in AES-GCM net: ethernet: mtk_eth_soc: out of bounds read in mtk_hwlro_get_fdir_entry() net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register modpost: fix removing numeric suffixes jffs2: fix memory leak in jffs2_do_fill_super ubi: ubi_create_volume: Fix use-after-free when volume creation failed nfp: only report pause frame configuration for physical device net/mlx5e: Update netdev features after changing XDP state tcp: tcp_rtx_synack() can be called from process context afs: Fix infinite loop found by xfstest generic/676 tipc: check attribute length for bearer name perf c2c: Fix sorting in percent_rmt_hitm_cmp() mips: cpc: Fix refcount leak in mips_cpc_default_phys_base tracing: Fix sleeping function called from invalid context on RT kernel tracing: Avoid adding tracer option before update_tracer_options i2c: cadence: Increase timeout per message if necessary m68knommu: set ZERO_PAGE() to the allocated zeroed page m68knommu: fix undefined reference to `_init_sp' NFSv4: Don't hold the layoutget locks across multiple RPC calls video: fbdev: pxa3xx-gcu: release the resources correctly in pxa3xx_gcu_probe/remove() xprtrdma: treat all calls not a bcall when bc_serv is NULL ata: pata_octeon_cf: Fix refcount leak in octeon_cf_probe af_unix: Fix a data-race in unix_dgram_peer_wake_me(). bpf, arm64: Clear prog->jited_len along prog->jited net/mlx4_en: Fix wrong return value on ioctl EEPROM query failure SUNRPC: Fix the calculation of xdr->end in xdr_get_next_encode_buffer() net: mdio: unexport __init-annotated mdio_bus_init() net: xfrm: unexport __init-annotated xfrm4_protocol_init() net: ipv6: unexport __init-annotated seg6_hmac_init() net/mlx5: Rearm the FW tracer after each tracer event ip_gre: test csum_start instead of transport header net: altera: Fix refcount leak in altera_tse_mdio_create drm: imx: fix compiler warning with gcc-12 iio: dummy: iio_simple_dummy: check the return value of kstrdup() lkdtm/usercopy: Expand size of "out of frame" object tty: synclink_gt: Fix null-pointer-dereference in slgt_clean() tty: Fix a possible resource leak in icom_probe drivers: staging: rtl8192u: Fix deadlock in ieee80211_beacons_stop() drivers: staging: rtl8192e: Fix deadlock in rtllib_beacons_stop() USB: host: isp116x: check return value after calling platform_get_resource() drivers: tty: serial: Fix deadlock in sa1100_set_termios() drivers: usb: host: Fix deadlock in oxu_bus_suspend() USB: hcd-pci: Fully suspend across freeze/thaw cycle usb: dwc2: gadget: don't reset gadget's driver->bus misc: rtsx: set NULL intfdata when probe fails extcon: Modify extcon device to be created after driver data is set clocksource/drivers/sp804: Avoid error on multiple instances staging: rtl8712: fix uninit-value in r871xu_drv_init() serial: msm_serial: disable interrupts in __msm_console_write() kernfs: Separate kernfs_pr_cont_buf and rename_lock. md: protect md_unregister_thread from reentrancy Revert "net: af_key: add check for pfkey_broadcast in function pfkey_process" ceph: allow ceph.dir.rctime xattr to be updatable drm/radeon: fix a possible null pointer dereference modpost: fix undefined behavior of is_arm_mapping_symbol() nbd: call genl_unregister_family() first in nbd_cleanup() nbd: fix race between nbd_alloc_config() and module removal nbd: fix io hung while disconnecting device nodemask: Fix return values to be unsigned vringh: Fix loop descriptors check in the indirect cases ALSA: hda/conexant - Fix loopback issue with CX20632 cifs: return errors during session setup during reconnects ata: libata-transport: fix {dma|pio|xfer}_mode sysfs files mmc: block: Fix CQE recovery reset success nfc: st21nfca: fix incorrect validating logic in EVT_TRANSACTION nfc: st21nfca: fix memory leaks in EVT_TRANSACTION handling ixgbe: fix bcast packets Rx on VF after promisc removal ixgbe: fix unexpected VLAN Rx in promisc mode on VF Input: bcm5974 - set missing URB_NO_TRANSFER_DMA_MAP urb flag powerpc/32: Fix overread/overwrite of thread_struct via ptrace md/raid0: Ignore RAID0 layout if the second zone has only one device mtd: cfi_cmdset_0002: Move and rename chip_check/chip_ready/chip_good_for_write mtd: cfi_cmdset_0002: Use chip_ready() for write on S29GL064N tcp: fix tcp_mtup_probe_success vs wrong snd_cwnd Linux 4.19.247 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I58c002ddc38e389a13e2bdb9f291f05805718c9d
846 lines
26 KiB
C
846 lines
26 KiB
C
/* Copyright (c) 2011-2014 PLUMgrid, http://plumgrid.com
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public
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* License as published by the Free Software Foundation.
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*/
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#ifndef _LINUX_BPF_H
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#define _LINUX_BPF_H 1
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#include <uapi/linux/bpf.h>
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#include <linux/workqueue.h>
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#include <linux/file.h>
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#include <linux/percpu.h>
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#include <linux/err.h>
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#include <linux/rbtree_latch.h>
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#include <linux/numa.h>
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#include <linux/wait.h>
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struct bpf_verifier_env;
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struct perf_event;
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struct bpf_prog;
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struct bpf_map;
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struct sock;
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struct seq_file;
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struct btf_type;
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/* map is generic key/value storage optionally accesible by eBPF programs */
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struct bpf_map_ops {
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/* funcs callable from userspace (via syscall) */
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int (*map_alloc_check)(union bpf_attr *attr);
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struct bpf_map *(*map_alloc)(union bpf_attr *attr);
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void (*map_release)(struct bpf_map *map, struct file *map_file);
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void (*map_free)(struct bpf_map *map);
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int (*map_get_next_key)(struct bpf_map *map, void *key, void *next_key);
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void (*map_release_uref)(struct bpf_map *map);
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void *(*map_lookup_elem_sys_only)(struct bpf_map *map, void *key);
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/* funcs callable from userspace and from eBPF programs */
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void *(*map_lookup_elem)(struct bpf_map *map, void *key);
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int (*map_update_elem)(struct bpf_map *map, void *key, void *value, u64 flags);
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int (*map_delete_elem)(struct bpf_map *map, void *key);
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/* funcs called by prog_array and perf_event_array map */
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void *(*map_fd_get_ptr)(struct bpf_map *map, struct file *map_file,
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int fd);
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void (*map_fd_put_ptr)(void *ptr);
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u32 (*map_gen_lookup)(struct bpf_map *map, struct bpf_insn *insn_buf);
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u32 (*map_fd_sys_lookup_elem)(void *ptr);
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void (*map_seq_show_elem)(struct bpf_map *map, void *key,
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struct seq_file *m);
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int (*map_check_btf)(const struct bpf_map *map,
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const struct btf_type *key_type,
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const struct btf_type *value_type);
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};
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struct bpf_map {
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/* The first two cachelines with read-mostly members of which some
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* are also accessed in fast-path (e.g. ops, max_entries).
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*/
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const struct bpf_map_ops *ops ____cacheline_aligned;
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struct bpf_map *inner_map_meta;
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#ifdef CONFIG_SECURITY
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void *security;
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#endif
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enum bpf_map_type map_type;
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u32 key_size;
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u32 value_size;
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u32 max_entries;
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u32 map_flags;
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u32 pages;
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u32 id;
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int numa_node;
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u32 btf_key_type_id;
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u32 btf_value_type_id;
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struct btf *btf;
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bool unpriv_array;
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/* 55 bytes hole */
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/* The 3rd and 4th cacheline with misc members to avoid false sharing
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* particularly with refcounting.
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*/
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struct user_struct *user ____cacheline_aligned;
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atomic_t refcnt;
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atomic_t usercnt;
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struct work_struct work;
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char name[BPF_OBJ_NAME_LEN];
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};
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struct bpf_offload_dev;
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struct bpf_offloaded_map;
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struct bpf_map_dev_ops {
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int (*map_get_next_key)(struct bpf_offloaded_map *map,
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void *key, void *next_key);
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int (*map_lookup_elem)(struct bpf_offloaded_map *map,
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void *key, void *value);
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int (*map_update_elem)(struct bpf_offloaded_map *map,
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void *key, void *value, u64 flags);
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int (*map_delete_elem)(struct bpf_offloaded_map *map, void *key);
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};
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struct bpf_offloaded_map {
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struct bpf_map map;
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struct net_device *netdev;
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const struct bpf_map_dev_ops *dev_ops;
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void *dev_priv;
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struct list_head offloads;
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};
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static inline struct bpf_offloaded_map *map_to_offmap(struct bpf_map *map)
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{
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return container_of(map, struct bpf_offloaded_map, map);
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}
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static inline bool bpf_map_offload_neutral(const struct bpf_map *map)
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{
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return map->map_type == BPF_MAP_TYPE_PERF_EVENT_ARRAY;
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}
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static inline bool bpf_map_support_seq_show(const struct bpf_map *map)
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{
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return map->btf && map->ops->map_seq_show_elem;
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}
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int map_check_no_btf(const struct bpf_map *map,
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const struct btf_type *key_type,
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const struct btf_type *value_type);
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extern const struct bpf_map_ops bpf_map_offload_ops;
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/* function argument constraints */
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enum bpf_arg_type {
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ARG_DONTCARE = 0, /* unused argument in helper function */
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/* the following constraints used to prototype
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* bpf_map_lookup/update/delete_elem() functions
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*/
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ARG_CONST_MAP_PTR, /* const argument used as pointer to bpf_map */
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ARG_PTR_TO_MAP_KEY, /* pointer to stack used as map key */
|
|
ARG_PTR_TO_MAP_VALUE, /* pointer to stack used as map value */
|
|
|
|
/* the following constraints used to prototype bpf_memcmp() and other
|
|
* functions that access data on eBPF program stack
|
|
*/
|
|
ARG_PTR_TO_MEM, /* pointer to valid memory (stack, packet, map value) */
|
|
ARG_PTR_TO_MEM_OR_NULL, /* pointer to valid memory or NULL */
|
|
ARG_PTR_TO_UNINIT_MEM, /* pointer to memory does not need to be initialized,
|
|
* helper function must fill all bytes or clear
|
|
* them in error case.
|
|
*/
|
|
|
|
ARG_CONST_SIZE, /* number of bytes accessed from memory */
|
|
ARG_CONST_SIZE_OR_ZERO, /* number of bytes accessed from memory or 0 */
|
|
|
|
ARG_PTR_TO_CTX, /* pointer to context */
|
|
ARG_ANYTHING, /* any (initialized) argument is ok */
|
|
};
|
|
|
|
/* type of values returned from helper functions */
|
|
enum bpf_return_type {
|
|
RET_INTEGER, /* function returns integer */
|
|
RET_VOID, /* function doesn't return anything */
|
|
RET_PTR_TO_MAP_VALUE, /* returns a pointer to map elem value */
|
|
RET_PTR_TO_MAP_VALUE_OR_NULL, /* returns a pointer to map elem value or NULL */
|
|
};
|
|
|
|
/* eBPF function prototype used by verifier to allow BPF_CALLs from eBPF programs
|
|
* to in-kernel helper functions and for adjusting imm32 field in BPF_CALL
|
|
* instructions after verifying
|
|
*/
|
|
struct bpf_func_proto {
|
|
u64 (*func)(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5);
|
|
bool gpl_only;
|
|
bool pkt_access;
|
|
enum bpf_return_type ret_type;
|
|
enum bpf_arg_type arg1_type;
|
|
enum bpf_arg_type arg2_type;
|
|
enum bpf_arg_type arg3_type;
|
|
enum bpf_arg_type arg4_type;
|
|
enum bpf_arg_type arg5_type;
|
|
};
|
|
|
|
/* bpf_context is intentionally undefined structure. Pointer to bpf_context is
|
|
* the first argument to eBPF programs.
|
|
* For socket filters: 'struct bpf_context *' == 'struct sk_buff *'
|
|
*/
|
|
struct bpf_context;
|
|
|
|
enum bpf_access_type {
|
|
BPF_READ = 1,
|
|
BPF_WRITE = 2
|
|
};
|
|
|
|
/* types of values stored in eBPF registers */
|
|
/* Pointer types represent:
|
|
* pointer
|
|
* pointer + imm
|
|
* pointer + (u16) var
|
|
* pointer + (u16) var + imm
|
|
* if (range > 0) then [ptr, ptr + range - off) is safe to access
|
|
* if (id > 0) means that some 'var' was added
|
|
* if (off > 0) means that 'imm' was added
|
|
*/
|
|
enum bpf_reg_type {
|
|
NOT_INIT = 0, /* nothing was written into register */
|
|
SCALAR_VALUE, /* reg doesn't contain a valid pointer */
|
|
PTR_TO_CTX, /* reg points to bpf_context */
|
|
CONST_PTR_TO_MAP, /* reg points to struct bpf_map */
|
|
PTR_TO_MAP_VALUE, /* reg points to map element value */
|
|
PTR_TO_MAP_VALUE_OR_NULL,/* points to map elem value or NULL */
|
|
PTR_TO_STACK, /* reg == frame_pointer + offset */
|
|
PTR_TO_PACKET_META, /* skb->data - meta_len */
|
|
PTR_TO_PACKET, /* reg points to skb->data */
|
|
PTR_TO_PACKET_END, /* skb->data + headlen */
|
|
};
|
|
|
|
/* The information passed from prog-specific *_is_valid_access
|
|
* back to the verifier.
|
|
*/
|
|
struct bpf_insn_access_aux {
|
|
enum bpf_reg_type reg_type;
|
|
int ctx_field_size;
|
|
};
|
|
|
|
static inline void
|
|
bpf_ctx_record_field_size(struct bpf_insn_access_aux *aux, u32 size)
|
|
{
|
|
aux->ctx_field_size = size;
|
|
}
|
|
|
|
struct bpf_prog_ops {
|
|
int (*test_run)(struct bpf_prog *prog, const union bpf_attr *kattr,
|
|
union bpf_attr __user *uattr);
|
|
};
|
|
|
|
struct bpf_verifier_ops {
|
|
/* return eBPF function prototype for verification */
|
|
const struct bpf_func_proto *
|
|
(*get_func_proto)(enum bpf_func_id func_id,
|
|
const struct bpf_prog *prog);
|
|
|
|
/* return true if 'size' wide access at offset 'off' within bpf_context
|
|
* with 'type' (read or write) is allowed
|
|
*/
|
|
bool (*is_valid_access)(int off, int size, enum bpf_access_type type,
|
|
const struct bpf_prog *prog,
|
|
struct bpf_insn_access_aux *info);
|
|
int (*gen_prologue)(struct bpf_insn *insn, bool direct_write,
|
|
const struct bpf_prog *prog);
|
|
int (*gen_ld_abs)(const struct bpf_insn *orig,
|
|
struct bpf_insn *insn_buf);
|
|
u32 (*convert_ctx_access)(enum bpf_access_type type,
|
|
const struct bpf_insn *src,
|
|
struct bpf_insn *dst,
|
|
struct bpf_prog *prog, u32 *target_size);
|
|
};
|
|
|
|
struct bpf_prog_offload_ops {
|
|
int (*insn_hook)(struct bpf_verifier_env *env,
|
|
int insn_idx, int prev_insn_idx);
|
|
};
|
|
|
|
struct bpf_prog_offload {
|
|
struct bpf_prog *prog;
|
|
struct net_device *netdev;
|
|
void *dev_priv;
|
|
struct list_head offloads;
|
|
bool dev_state;
|
|
const struct bpf_prog_offload_ops *dev_ops;
|
|
void *jited_image;
|
|
u32 jited_len;
|
|
};
|
|
|
|
struct bpf_prog_aux {
|
|
atomic_t refcnt;
|
|
u32 used_map_cnt;
|
|
u32 max_ctx_offset;
|
|
u32 stack_depth;
|
|
u32 id;
|
|
u32 func_cnt;
|
|
bool offload_requested;
|
|
struct bpf_prog **func;
|
|
void *jit_data; /* JIT specific data. arch dependent */
|
|
struct latch_tree_node ksym_tnode;
|
|
struct list_head ksym_lnode;
|
|
const struct bpf_prog_ops *ops;
|
|
struct bpf_map **used_maps;
|
|
struct bpf_prog *prog;
|
|
struct user_struct *user;
|
|
u64 load_time; /* ns since boottime */
|
|
struct bpf_map *cgroup_storage;
|
|
char name[BPF_OBJ_NAME_LEN];
|
|
#ifdef CONFIG_SECURITY
|
|
void *security;
|
|
#endif
|
|
struct bpf_prog_offload *offload;
|
|
union {
|
|
struct work_struct work;
|
|
struct rcu_head rcu;
|
|
};
|
|
};
|
|
|
|
struct bpf_array {
|
|
struct bpf_map map;
|
|
u32 elem_size;
|
|
u32 index_mask;
|
|
/* 'ownership' of prog_array is claimed by the first program that
|
|
* is going to use this map or by the first program which FD is stored
|
|
* in the map to make sure that all callers and callees have the same
|
|
* prog_type and JITed flag
|
|
*/
|
|
enum bpf_prog_type owner_prog_type;
|
|
bool owner_jited;
|
|
union {
|
|
char value[0] __aligned(8);
|
|
void *ptrs[0] __aligned(8);
|
|
void __percpu *pptrs[0] __aligned(8);
|
|
};
|
|
};
|
|
|
|
#define MAX_TAIL_CALL_CNT 32
|
|
|
|
struct bpf_event_entry {
|
|
struct perf_event *event;
|
|
struct file *perf_file;
|
|
struct file *map_file;
|
|
struct rcu_head rcu;
|
|
};
|
|
|
|
bool bpf_prog_array_compatible(struct bpf_array *array, const struct bpf_prog *fp);
|
|
int bpf_prog_calc_tag(struct bpf_prog *fp);
|
|
|
|
const struct bpf_func_proto *bpf_get_trace_printk_proto(void);
|
|
|
|
typedef unsigned long (*bpf_ctx_copy_t)(void *dst, const void *src,
|
|
unsigned long off, unsigned long len);
|
|
|
|
u64 bpf_event_output(struct bpf_map *map, u64 flags, void *meta, u64 meta_size,
|
|
void *ctx, u64 ctx_size, bpf_ctx_copy_t ctx_copy);
|
|
|
|
int bpf_prog_test_run_xdp(struct bpf_prog *prog, const union bpf_attr *kattr,
|
|
union bpf_attr __user *uattr);
|
|
int bpf_prog_test_run_skb(struct bpf_prog *prog, const union bpf_attr *kattr,
|
|
union bpf_attr __user *uattr);
|
|
|
|
/* an array of programs to be executed under rcu_lock.
|
|
*
|
|
* Typical usage:
|
|
* ret = BPF_PROG_RUN_ARRAY(&bpf_prog_array, ctx, BPF_PROG_RUN);
|
|
*
|
|
* the structure returned by bpf_prog_array_alloc() should be populated
|
|
* with program pointers and the last pointer must be NULL.
|
|
* The user has to keep refcnt on the program and make sure the program
|
|
* is removed from the array before bpf_prog_put().
|
|
* The 'struct bpf_prog_array *' should only be replaced with xchg()
|
|
* since other cpus are walking the array of pointers in parallel.
|
|
*/
|
|
struct bpf_prog_array_item {
|
|
struct bpf_prog *prog;
|
|
struct bpf_cgroup_storage *cgroup_storage;
|
|
};
|
|
|
|
struct bpf_prog_array {
|
|
struct rcu_head rcu;
|
|
struct bpf_prog_array_item items[0];
|
|
};
|
|
|
|
struct bpf_prog_array *bpf_prog_array_alloc(u32 prog_cnt, gfp_t flags);
|
|
void bpf_prog_array_free(struct bpf_prog_array __rcu *progs);
|
|
int bpf_prog_array_length(struct bpf_prog_array __rcu *progs);
|
|
int bpf_prog_array_copy_to_user(struct bpf_prog_array __rcu *progs,
|
|
__u32 __user *prog_ids, u32 cnt);
|
|
|
|
void bpf_prog_array_delete_safe(struct bpf_prog_array __rcu *progs,
|
|
struct bpf_prog *old_prog);
|
|
int bpf_prog_array_copy_info(struct bpf_prog_array __rcu *array,
|
|
u32 *prog_ids, u32 request_cnt,
|
|
u32 *prog_cnt);
|
|
int bpf_prog_array_copy(struct bpf_prog_array __rcu *old_array,
|
|
struct bpf_prog *exclude_prog,
|
|
struct bpf_prog *include_prog,
|
|
struct bpf_prog_array **new_array);
|
|
|
|
#define __BPF_PROG_RUN_ARRAY(array, ctx, func, check_non_null, set_cg_storage) \
|
|
({ \
|
|
struct bpf_prog_array_item *_item; \
|
|
struct bpf_prog *_prog; \
|
|
struct bpf_prog_array *_array; \
|
|
u32 _ret = 1; \
|
|
preempt_disable(); \
|
|
rcu_read_lock(); \
|
|
_array = rcu_dereference(array); \
|
|
if (unlikely(check_non_null && !_array))\
|
|
goto _out; \
|
|
_item = &_array->items[0]; \
|
|
while ((_prog = READ_ONCE(_item->prog))) { \
|
|
if (set_cg_storage) \
|
|
bpf_cgroup_storage_set(_item->cgroup_storage); \
|
|
_ret &= func(_prog, ctx); \
|
|
_item++; \
|
|
} \
|
|
_out: \
|
|
rcu_read_unlock(); \
|
|
preempt_enable(); \
|
|
_ret; \
|
|
})
|
|
|
|
#define BPF_PROG_RUN_ARRAY(array, ctx, func) \
|
|
__BPF_PROG_RUN_ARRAY(array, ctx, func, false, true)
|
|
|
|
#define BPF_PROG_RUN_ARRAY_CHECK(array, ctx, func) \
|
|
__BPF_PROG_RUN_ARRAY(array, ctx, func, true, false)
|
|
|
|
#ifdef CONFIG_BPF_SYSCALL
|
|
DECLARE_PER_CPU(int, bpf_prog_active);
|
|
|
|
extern const struct file_operations bpf_map_fops;
|
|
extern const struct file_operations bpf_prog_fops;
|
|
|
|
#define BPF_PROG_TYPE(_id, _name) \
|
|
extern const struct bpf_prog_ops _name ## _prog_ops; \
|
|
extern const struct bpf_verifier_ops _name ## _verifier_ops;
|
|
#define BPF_MAP_TYPE(_id, _ops) \
|
|
extern const struct bpf_map_ops _ops;
|
|
#include <linux/bpf_types.h>
|
|
#undef BPF_PROG_TYPE
|
|
#undef BPF_MAP_TYPE
|
|
|
|
extern const struct bpf_prog_ops bpf_offload_prog_ops;
|
|
extern const struct bpf_verifier_ops tc_cls_act_analyzer_ops;
|
|
extern const struct bpf_verifier_ops xdp_analyzer_ops;
|
|
|
|
struct bpf_prog *bpf_prog_get(u32 ufd);
|
|
struct bpf_prog *bpf_prog_get_type_dev(u32 ufd, enum bpf_prog_type type,
|
|
bool attach_drv);
|
|
struct bpf_prog * __must_check bpf_prog_add(struct bpf_prog *prog, int i);
|
|
void bpf_prog_sub(struct bpf_prog *prog, int i);
|
|
struct bpf_prog * __must_check bpf_prog_inc(struct bpf_prog *prog);
|
|
struct bpf_prog * __must_check bpf_prog_inc_not_zero(struct bpf_prog *prog);
|
|
void bpf_prog_put(struct bpf_prog *prog);
|
|
int __bpf_prog_charge(struct user_struct *user, u32 pages);
|
|
void __bpf_prog_uncharge(struct user_struct *user, u32 pages);
|
|
|
|
void bpf_prog_free_id(struct bpf_prog *prog, bool do_idr_lock);
|
|
void bpf_map_free_id(struct bpf_map *map, bool do_idr_lock);
|
|
|
|
struct bpf_map *bpf_map_get_with_uref(u32 ufd);
|
|
struct bpf_map *__bpf_map_get(struct fd f);
|
|
struct bpf_map * __must_check bpf_map_inc(struct bpf_map *map, bool uref);
|
|
void bpf_map_put_with_uref(struct bpf_map *map);
|
|
void bpf_map_put(struct bpf_map *map);
|
|
int bpf_map_precharge_memlock(u32 pages);
|
|
int bpf_map_charge_memlock(struct bpf_map *map, u32 pages);
|
|
void bpf_map_uncharge_memlock(struct bpf_map *map, u32 pages);
|
|
void *bpf_map_area_alloc(size_t size, int numa_node);
|
|
void bpf_map_area_free(void *base);
|
|
void bpf_map_init_from_attr(struct bpf_map *map, union bpf_attr *attr);
|
|
|
|
extern int sysctl_unprivileged_bpf_disabled;
|
|
|
|
int bpf_map_new_fd(struct bpf_map *map, int flags);
|
|
int bpf_prog_new_fd(struct bpf_prog *prog);
|
|
|
|
int bpf_obj_pin_user(u32 ufd, const char __user *pathname);
|
|
int bpf_obj_get_user(const char __user *pathname, int flags);
|
|
|
|
int bpf_percpu_hash_copy(struct bpf_map *map, void *key, void *value);
|
|
int bpf_percpu_array_copy(struct bpf_map *map, void *key, void *value);
|
|
int bpf_percpu_hash_update(struct bpf_map *map, void *key, void *value,
|
|
u64 flags);
|
|
int bpf_percpu_array_update(struct bpf_map *map, void *key, void *value,
|
|
u64 flags);
|
|
|
|
int bpf_stackmap_copy(struct bpf_map *map, void *key, void *value);
|
|
|
|
int bpf_fd_array_map_update_elem(struct bpf_map *map, struct file *map_file,
|
|
void *key, void *value, u64 map_flags);
|
|
int bpf_fd_array_map_lookup_elem(struct bpf_map *map, void *key, u32 *value);
|
|
int bpf_fd_htab_map_update_elem(struct bpf_map *map, struct file *map_file,
|
|
void *key, void *value, u64 map_flags);
|
|
int bpf_fd_htab_map_lookup_elem(struct bpf_map *map, void *key, u32 *value);
|
|
|
|
int bpf_get_file_flag(int flags);
|
|
int bpf_check_uarg_tail_zero(void __user *uaddr, size_t expected_size,
|
|
size_t actual_size);
|
|
|
|
/* memcpy that is used with 8-byte aligned pointers, power-of-8 size and
|
|
* forced to use 'long' read/writes to try to atomically copy long counters.
|
|
* Best-effort only. No barriers here, since it _will_ race with concurrent
|
|
* updates from BPF programs. Called from bpf syscall and mostly used with
|
|
* size 8 or 16 bytes, so ask compiler to inline it.
|
|
*/
|
|
static inline void bpf_long_memcpy(void *dst, const void *src, u32 size)
|
|
{
|
|
const long *lsrc = src;
|
|
long *ldst = dst;
|
|
|
|
size /= sizeof(long);
|
|
while (size--)
|
|
*ldst++ = *lsrc++;
|
|
}
|
|
|
|
/* verify correctness of eBPF program */
|
|
int bpf_check(struct bpf_prog **fp, union bpf_attr *attr);
|
|
void bpf_patch_call_args(struct bpf_insn *insn, u32 stack_depth);
|
|
|
|
/* Map specifics */
|
|
struct xdp_buff;
|
|
struct sk_buff;
|
|
|
|
struct bpf_dtab_netdev *__dev_map_lookup_elem(struct bpf_map *map, u32 key);
|
|
void __dev_map_insert_ctx(struct bpf_map *map, u32 index);
|
|
void __dev_map_flush(struct bpf_map *map);
|
|
int dev_map_enqueue(struct bpf_dtab_netdev *dst, struct xdp_buff *xdp,
|
|
struct net_device *dev_rx);
|
|
int dev_map_generic_redirect(struct bpf_dtab_netdev *dst, struct sk_buff *skb,
|
|
struct bpf_prog *xdp_prog);
|
|
|
|
struct bpf_cpu_map_entry *__cpu_map_lookup_elem(struct bpf_map *map, u32 key);
|
|
void __cpu_map_insert_ctx(struct bpf_map *map, u32 index);
|
|
void __cpu_map_flush(struct bpf_map *map);
|
|
int cpu_map_enqueue(struct bpf_cpu_map_entry *rcpu, struct xdp_buff *xdp,
|
|
struct net_device *dev_rx);
|
|
|
|
/* Return map's numa specified by userspace */
|
|
static inline int bpf_map_attr_numa_node(const union bpf_attr *attr)
|
|
{
|
|
return (attr->map_flags & BPF_F_NUMA_NODE) ?
|
|
attr->numa_node : NUMA_NO_NODE;
|
|
}
|
|
|
|
struct bpf_prog *bpf_prog_get_type_path(const char *name, enum bpf_prog_type type);
|
|
int array_map_alloc_check(union bpf_attr *attr);
|
|
|
|
static inline bool unprivileged_ebpf_enabled(void)
|
|
{
|
|
return !sysctl_unprivileged_bpf_disabled;
|
|
}
|
|
|
|
#else /* !CONFIG_BPF_SYSCALL */
|
|
static inline struct bpf_prog *bpf_prog_get(u32 ufd)
|
|
{
|
|
return ERR_PTR(-EOPNOTSUPP);
|
|
}
|
|
|
|
static inline struct bpf_prog *bpf_prog_get_type_dev(u32 ufd,
|
|
enum bpf_prog_type type,
|
|
bool attach_drv)
|
|
{
|
|
return ERR_PTR(-EOPNOTSUPP);
|
|
}
|
|
|
|
static inline struct bpf_prog * __must_check bpf_prog_add(struct bpf_prog *prog,
|
|
int i)
|
|
{
|
|
return ERR_PTR(-EOPNOTSUPP);
|
|
}
|
|
|
|
static inline void bpf_prog_sub(struct bpf_prog *prog, int i)
|
|
{
|
|
}
|
|
|
|
static inline void bpf_prog_put(struct bpf_prog *prog)
|
|
{
|
|
}
|
|
|
|
static inline struct bpf_prog * __must_check bpf_prog_inc(struct bpf_prog *prog)
|
|
{
|
|
return ERR_PTR(-EOPNOTSUPP);
|
|
}
|
|
|
|
static inline struct bpf_prog *__must_check
|
|
bpf_prog_inc_not_zero(struct bpf_prog *prog)
|
|
{
|
|
return ERR_PTR(-EOPNOTSUPP);
|
|
}
|
|
|
|
static inline int __bpf_prog_charge(struct user_struct *user, u32 pages)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void __bpf_prog_uncharge(struct user_struct *user, u32 pages)
|
|
{
|
|
}
|
|
|
|
static inline int bpf_obj_get_user(const char __user *pathname, int flags)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline struct net_device *__dev_map_lookup_elem(struct bpf_map *map,
|
|
u32 key)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline void __dev_map_insert_ctx(struct bpf_map *map, u32 index)
|
|
{
|
|
}
|
|
|
|
static inline void __dev_map_flush(struct bpf_map *map)
|
|
{
|
|
}
|
|
|
|
struct xdp_buff;
|
|
struct bpf_dtab_netdev;
|
|
|
|
static inline
|
|
int dev_map_enqueue(struct bpf_dtab_netdev *dst, struct xdp_buff *xdp,
|
|
struct net_device *dev_rx)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
struct sk_buff;
|
|
|
|
static inline int dev_map_generic_redirect(struct bpf_dtab_netdev *dst,
|
|
struct sk_buff *skb,
|
|
struct bpf_prog *xdp_prog)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline
|
|
struct bpf_cpu_map_entry *__cpu_map_lookup_elem(struct bpf_map *map, u32 key)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline void __cpu_map_insert_ctx(struct bpf_map *map, u32 index)
|
|
{
|
|
}
|
|
|
|
static inline void __cpu_map_flush(struct bpf_map *map)
|
|
{
|
|
}
|
|
|
|
static inline int cpu_map_enqueue(struct bpf_cpu_map_entry *rcpu,
|
|
struct xdp_buff *xdp,
|
|
struct net_device *dev_rx)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline struct bpf_prog *bpf_prog_get_type_path(const char *name,
|
|
enum bpf_prog_type type)
|
|
{
|
|
return ERR_PTR(-EOPNOTSUPP);
|
|
}
|
|
|
|
static inline bool unprivileged_ebpf_enabled(void)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
#endif /* CONFIG_BPF_SYSCALL */
|
|
|
|
static inline struct bpf_prog *bpf_prog_get_type(u32 ufd,
|
|
enum bpf_prog_type type)
|
|
{
|
|
return bpf_prog_get_type_dev(ufd, type, false);
|
|
}
|
|
|
|
bool bpf_prog_get_ok(struct bpf_prog *, enum bpf_prog_type *, bool);
|
|
|
|
int bpf_prog_offload_compile(struct bpf_prog *prog);
|
|
void bpf_prog_offload_destroy(struct bpf_prog *prog);
|
|
int bpf_prog_offload_info_fill(struct bpf_prog_info *info,
|
|
struct bpf_prog *prog);
|
|
|
|
int bpf_map_offload_info_fill(struct bpf_map_info *info, struct bpf_map *map);
|
|
|
|
int bpf_map_offload_lookup_elem(struct bpf_map *map, void *key, void *value);
|
|
int bpf_map_offload_update_elem(struct bpf_map *map,
|
|
void *key, void *value, u64 flags);
|
|
int bpf_map_offload_delete_elem(struct bpf_map *map, void *key);
|
|
int bpf_map_offload_get_next_key(struct bpf_map *map,
|
|
void *key, void *next_key);
|
|
|
|
bool bpf_offload_prog_map_match(struct bpf_prog *prog, struct bpf_map *map);
|
|
|
|
struct bpf_offload_dev *bpf_offload_dev_create(void);
|
|
void bpf_offload_dev_destroy(struct bpf_offload_dev *offdev);
|
|
int bpf_offload_dev_netdev_register(struct bpf_offload_dev *offdev,
|
|
struct net_device *netdev);
|
|
void bpf_offload_dev_netdev_unregister(struct bpf_offload_dev *offdev,
|
|
struct net_device *netdev);
|
|
bool bpf_offload_dev_match(struct bpf_prog *prog, struct net_device *netdev);
|
|
|
|
void unpriv_ebpf_notify(int new_state);
|
|
|
|
#if defined(CONFIG_NET) && defined(CONFIG_BPF_SYSCALL)
|
|
int bpf_prog_offload_init(struct bpf_prog *prog, union bpf_attr *attr);
|
|
|
|
static inline bool bpf_prog_is_dev_bound(const struct bpf_prog_aux *aux)
|
|
{
|
|
return aux->offload_requested;
|
|
}
|
|
|
|
static inline bool bpf_map_is_dev_bound(struct bpf_map *map)
|
|
{
|
|
return unlikely(map->ops == &bpf_map_offload_ops);
|
|
}
|
|
|
|
struct bpf_map *bpf_map_offload_map_alloc(union bpf_attr *attr);
|
|
void bpf_map_offload_map_free(struct bpf_map *map);
|
|
#else
|
|
static inline int bpf_prog_offload_init(struct bpf_prog *prog,
|
|
union bpf_attr *attr)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline bool bpf_prog_is_dev_bound(struct bpf_prog_aux *aux)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline bool bpf_map_is_dev_bound(struct bpf_map *map)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline struct bpf_map *bpf_map_offload_map_alloc(union bpf_attr *attr)
|
|
{
|
|
return ERR_PTR(-EOPNOTSUPP);
|
|
}
|
|
|
|
static inline void bpf_map_offload_map_free(struct bpf_map *map)
|
|
{
|
|
}
|
|
#endif /* CONFIG_NET && CONFIG_BPF_SYSCALL */
|
|
|
|
#if defined(CONFIG_STREAM_PARSER) && defined(CONFIG_BPF_SYSCALL) && defined(CONFIG_INET)
|
|
struct sock *__sock_map_lookup_elem(struct bpf_map *map, u32 key);
|
|
struct sock *__sock_hash_lookup_elem(struct bpf_map *map, void *key);
|
|
int sock_map_prog(struct bpf_map *map, struct bpf_prog *prog, u32 type);
|
|
int sockmap_get_from_fd(const union bpf_attr *attr, int type,
|
|
struct bpf_prog *prog);
|
|
#else
|
|
static inline struct sock *__sock_map_lookup_elem(struct bpf_map *map, u32 key)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct sock *__sock_hash_lookup_elem(struct bpf_map *map,
|
|
void *key)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline int sock_map_prog(struct bpf_map *map,
|
|
struct bpf_prog *prog,
|
|
u32 type)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline int sockmap_get_from_fd(const union bpf_attr *attr, int type,
|
|
struct bpf_prog *prog)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_XDP_SOCKETS)
|
|
struct xdp_sock;
|
|
struct xdp_sock *__xsk_map_lookup_elem(struct bpf_map *map, u32 key);
|
|
int __xsk_map_redirect(struct bpf_map *map, struct xdp_buff *xdp,
|
|
struct xdp_sock *xs);
|
|
void __xsk_map_flush(struct bpf_map *map);
|
|
#else
|
|
struct xdp_sock;
|
|
static inline struct xdp_sock *__xsk_map_lookup_elem(struct bpf_map *map,
|
|
u32 key)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline int __xsk_map_redirect(struct bpf_map *map, struct xdp_buff *xdp,
|
|
struct xdp_sock *xs)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline void __xsk_map_flush(struct bpf_map *map)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_INET) && defined(CONFIG_BPF_SYSCALL)
|
|
void bpf_sk_reuseport_detach(struct sock *sk);
|
|
int bpf_fd_reuseport_array_lookup_elem(struct bpf_map *map, void *key,
|
|
void *value);
|
|
int bpf_fd_reuseport_array_update_elem(struct bpf_map *map, void *key,
|
|
void *value, u64 map_flags);
|
|
#else
|
|
static inline void bpf_sk_reuseport_detach(struct sock *sk)
|
|
{
|
|
}
|
|
|
|
#ifdef CONFIG_BPF_SYSCALL
|
|
static inline int bpf_fd_reuseport_array_lookup_elem(struct bpf_map *map,
|
|
void *key, void *value)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline int bpf_fd_reuseport_array_update_elem(struct bpf_map *map,
|
|
void *key, void *value,
|
|
u64 map_flags)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
#endif /* CONFIG_BPF_SYSCALL */
|
|
#endif /* defined(CONFIG_INET) && defined(CONFIG_BPF_SYSCALL) */
|
|
|
|
/* verifier prototypes for helper functions called from eBPF programs */
|
|
extern const struct bpf_func_proto bpf_map_lookup_elem_proto;
|
|
extern const struct bpf_func_proto bpf_map_update_elem_proto;
|
|
extern const struct bpf_func_proto bpf_map_delete_elem_proto;
|
|
|
|
extern const struct bpf_func_proto bpf_get_prandom_u32_proto;
|
|
extern const struct bpf_func_proto bpf_get_smp_processor_id_proto;
|
|
extern const struct bpf_func_proto bpf_get_numa_node_id_proto;
|
|
extern const struct bpf_func_proto bpf_tail_call_proto;
|
|
extern const struct bpf_func_proto bpf_ktime_get_ns_proto;
|
|
extern const struct bpf_func_proto bpf_ktime_get_boot_ns_proto;
|
|
extern const struct bpf_func_proto bpf_get_current_pid_tgid_proto;
|
|
extern const struct bpf_func_proto bpf_get_current_uid_gid_proto;
|
|
extern const struct bpf_func_proto bpf_get_current_comm_proto;
|
|
extern const struct bpf_func_proto bpf_get_stackid_proto;
|
|
extern const struct bpf_func_proto bpf_get_stack_proto;
|
|
extern const struct bpf_func_proto bpf_sock_map_update_proto;
|
|
extern const struct bpf_func_proto bpf_sock_hash_update_proto;
|
|
extern const struct bpf_func_proto bpf_get_current_cgroup_id_proto;
|
|
|
|
extern const struct bpf_func_proto bpf_get_local_storage_proto;
|
|
|
|
/* Shared helpers among cBPF and eBPF. */
|
|
void bpf_user_rnd_init_once(void);
|
|
u64 bpf_user_rnd_u32(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5);
|
|
|
|
#endif /* _LINUX_BPF_H */
|