https://source.android.com/docs/security/bulletin/2023-10-01 * tag 'ASB-2023-10-06_4.19-stable' of https://android.googlesource.com/kernel/common: UPSTREAM: net/sched: sch_hfsc: Ensure inner classes have fsc curve UPSTREAM: net: sched: sch_qfq: Fix UAF in qfq_dequeue() Linux 4.19.295 net/sched: Retire rsvp classifier net/sched: cls_fw: No longer copy tcf_result on update to avoid use-after-free mtd: rawnand: brcmnand: Fix ECC level field setting for v7.2 controller nfsd: fix change_info in NFSv4 RENAME replies btrfs: fix lockdep splat and potential deadlock after failure running delayed items attr: block mode changes of symlinks md/raid1: fix error: ISO C90 forbids mixed declarations kobject: Add sanity check for kset->kobj.ktype in kset_register() media: pci: ipu3-cio2: Initialise timing struct to avoid a compiler warning serial: cpm_uart: Avoid suspicious locking scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() usb: gadget: fsl_qe_udc: validate endpoint index for ch9 udc media: pci: cx23885: replace BUG with error return media: tuners: qt1010: replace BUG_ON with a regular error iio: core: Use min() instead of min_t() to make code more robust media: az6007: Fix null-ptr-deref in az6007_i2c_xfer() media: anysee: fix null-ptr-deref in anysee_master_xfer media: af9005: Fix null-ptr-deref in af9005_i2c_xfer media: dw2102: Fix null-ptr-deref in dw2102_i2c_transfer() media: dvb-usb-v2: af9035: Fix null-ptr-deref in af9035_i2c_master_xfer powerpc/pseries: fix possible memory leak in ibmebus_bus_init() jfs: fix invalid free of JFS_IP(ipimap)->i_imap in diUnmount fs/jfs: prevent double-free in dbUnmount() after failed jfs_remount() ext2: fix datatype of block number in ext2_xattr_set2() md: raid1: fix potential OOB in raid1_remove_disk() drm/exynos: fix a possible null-pointer dereference due to data race in exynos_drm_crtc_atomic_disable() alx: fix OOB-read compiler warning tpm_tis: Resend command to recover from data transfer errors crypto: lib/mpi - avoid null pointer deref in mpi_cmp_ui() wifi: mwifiex: fix fortify warning wifi: ath9k: fix printk specifier hw_breakpoint: fix single-stepping when using bpf_overflow_handler ACPI: video: Add backlight=native DMI quirk for Lenovo Ideapad Z470 ACPICA: Add AML_NO_OPERAND_RESOLVE flag to Timer btrfs: output extra debug info if we failed to find an inline backref autofs: fix memory leak of waitqueues in autofs_catatonic_mode parisc: Drop loops_per_jiffy from per_cpu struct drm/amd/display: Fix a bug when searching for insert_above_mpcc kcm: Fix error handling for SOCK_DGRAM in kcm_sendmsg(). ixgbe: fix timestamp configuration code kcm: Fix memory leak in error path of kcm_sendmsg() net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all() perf hists browser: Fix hierarchy mode header mtd: rawnand: brcmnand: Fix potential false time out warning mtd: rawnand: brcmnand: Fix potential out-of-bounds access in oob write mtd: rawnand: brcmnand: Fix crash during the panic_write btrfs: don't start transaction when joining with TRANS_JOIN_NOSTART ata: pata_ftide010: Add missing MODULE_DESCRIPTION ata: sata_gemini: Add missing MODULE_DESCRIPTION netfilter: nfnetlink_osf: avoid OOB read idr: fix param name in idr_alloc_cyclic() doc igb: Change IGB_MIN to allow set rx/tx value between 64 and 80 igbvf: Change IGBVF_MIN to allow set rx/tx value between 64 and 80 kcm: Destroy mutex in kcm_exit_net() net: sched: sch_qfq: Fix UAF in qfq_dequeue() af_unix: Fix data race around sk->sk_err. af_unix: Fix data-races around sk->sk_shutdown. af_unix: Fix data-race around unix_tot_inflight. af_unix: Fix data-races around user->unix_inflight. net: ipv6/addrconf: avoid integer underflow in ipv6_create_tempaddr veth: Fixing transmit return status for dropped packets igb: disable virtualization features on 82580 net: read sk->sk_family once in sk_mc_loop() pwm: lpc32xx: Remove handling of PWM channels watchdog: intel-mid_wdt: add MODULE_ALIAS() to allow auto-load x86/virt: Drop unnecessary check on extended CPUID level in cpu_has_svm() kconfig: fix possible buffer overflow NFSv4/pnfs: minor fix for cleanup path in nfs4_get_device_info soc: qcom: qmi_encdec: Restrict string length in decode clk: qcom: gcc-mdm9615: use proper parent for pll0_vote clock parisc: led: Reduce CPU overhead for disk & lan LED computation parisc: led: Fix LAN receive and transmit LEDs drm/ast: Fix DRAM init on AST2200 fbdev/ep93xx-fb: Do not assign to struct fb_info.dev scsi: qla2xxx: Turn off noisy message log scsi: qla2xxx: fix inconsistent TMF timeout udf: initialize newblock to 0 usb: typec: tcpci: clear the fault status bit serial: sc16is7xx: fix broken port 0 uart init sc16is7xx: Set iobase to device index PCI/ATS: Add inline to pci_prg_resp_pasid_required() pstore/ram: Check start of empty przs during init net: handle ARPHRD_PPP in dev_is_mac_header_xmit() X.509: if signature is unsupported skip validation cpufreq: brcmstb-avs-cpufreq: Fix -Warray-bounds bug crypto: stm32 - fix loop iterating through scatterlist for DMA dccp: Fix out of bounds access in DCCP error handler dlm: fix plock lookup when using multiple lockspaces parisc: Fix /proc/cpuinfo output for lscpu procfs: block chmod on /proc/thread-self/comm Revert "PCI: Mark NVIDIA T4 GPUs to avoid bus reset" ntb: Fix calculation ntb_transport_tx_free_entry() ntb: Clean up tx tail index on link down ntb: Drop packets when qp link is down media: dvb: symbol fixup for dvb_attach() backlight/lv5207lp: Compare against struct fb_info.device backlight/bd6107: Compare against struct fb_info.device backlight/gpio_backlight: Compare against struct fb_info.device ARM: OMAP2+: Fix -Warray-bounds warning in _pwrdm_state_switch() ipmi_si: fix a memleak in try_smi_init() ALSA: pcm: Fix missing fixup call in compat hw_refine ioctl PM / devfreq: Fix leak in devfreq_dev_release() igb: set max size RX buffer when store bad packet is enabled skbuff: skb_segment, Call zero copy functions before using skbuff frags netfilter: xt_sctp: validate the flag_info count netfilter: xt_u32: validate user space input netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c igmp: limit igmpv3_newpack() packet size to IP_MAX_MTU dmaengine: ste_dma40: Add missing IRQ check in d40_probe um: Fix hostaudio build errors arch: um: drivers: Kconfig: pedantic formatting rpmsg: glink: Add check for kstrdup HID: multitouch: Correct devm device reference for hidinput input_dev name Revert "IB/isert: Fix incorrect release of isert connection" amba: bus: fix refcount leak serial: tegra: handle clk prepare error in tegra_uart_hw_init() scsi: fcoe: Fix potential deadlock on &fip->ctlr_lock scsi: core: Use 32-bit hostnum in scsi_host_lookup() cgroup:namespace: Remove unused cgroup_namespaces_init() media: ov2680: Fix regulators being left enabled on ov2680_power_on() errors media: ov2680: Fix vflip / hflip set functions media: ov2680: Fix ov2680_bayer_order() media: ov2680: Remove auto-gain and auto-exposure controls media: i2c: ov2680: Set V4L2_CTRL_FLAG_MODIFY_LAYOUT on flips USB: gadget: f_mass_storage: Fix unused variable warning media: go7007: Remove redundant if statement IB/uverbs: Fix an potential error pointer dereference dma-buf/sync_file: Fix docs syntax scsi: qedf: Do not touch __user pointer in qedf_dbg_fp_int_cmd_read() directly scsi: qedf: Do not touch __user pointer in qedf_dbg_stop_io_on_error_cmd_read() directly x86/APM: drop the duplicate APM_MINOR_DEV macro scsi: qla4xxx: Add length check when parsing nlattrs scsi: be2iscsi: Add length check when parsing nlattrs scsi: iscsi: Add strlen() check in iscsi_if_set{_host}_param() usb: phy: mxs: fix getting wrong state with mxs_phy_is_otg_host() media: mediatek: vcodec: Return NULL if no vdec_fb is found media: cx24120: Add retval check for cx24120_message_send() media: dvb-usb: m920x: Fix a potential memory leak in m920x_i2c_xfer() media: dib7000p: Fix potential division by zero drivers: usb: smsusb: fix error handling code in smsusb_init_device media: v4l2-core: Fix a potential resource leak in v4l2_fwnode_parse_link() media: v4l2-fwnode: simplify v4l2_fwnode_parse_link media: v4l2-fwnode: fix v4l2_fwnode_parse_link handling media: Use of_node_name_eq for node name comparisons NFSD: da_addr_body field missing in some GETDEVICEINFO replies fs: lockd: avoid possible wrong NULL parameter jfs: validate max amount of blocks before allocation. powerpc/iommu: Fix notifiers being shared by PCI and VIO buses nfs/blocklayout: Use the passed in gfp flags wifi: ath10k: Use RMW accessors for changing LNKCTL drm/radeon: Use RMW accessors for changing LNKCTL drm/radeon: Prefer pcie_capability_read_word() drm/radeon: Replace numbers with PCI_EXP_LNKCTL2 definitions drm/radeon: Correct Transmit Margin masks drm/amdgpu: Use RMW accessors for changing LNKCTL drm/amdgpu: Prefer pcie_capability_read_word() drm/amdgpu: Replace numbers with PCI_EXP_LNKCTL2 definitions drm/amdgpu: Correct Transmit Margin masks PCI: Add #defines for Enter Compliance, Transmit Margin PCI: Decode PCIe 32 GT/s link speed PCI: Cleanup register definition width and whitespace PCI/ATS: Add pci_prg_resp_pasid_required() interface. PCI/ASPM: Use RMW accessors for changing LNKCTL PCI: pciehp: Use RMW accessors for changing LNKCTL PCI: Mark NVIDIA T4 GPUs to avoid bus reset clk: sunxi-ng: Modify mismatched function name drivers: clk: keystone: Fix parameter judgment in _of_pll_clk_init() ALSA: ac97: Fix possible error value of *rac97 of: unittest: Fix overlay type in apply/revert check audit: fix possible soft lockup in __audit_inode_child() smackfs: Prevent underflow in smk_set_cipso() drm/msm/mdp5: Don't leak some plane state drm/msm: Replace drm_framebuffer_{un/reference} with put, get functions of: unittest: fix null pointer dereferencing in of_unittest_find_node_by_name() drm/tegra: dpaux: Fix incorrect return value of platform_get_irq drm/tegra: Remove superfluous error messages around platform_get_irq() ARM: dts: BCM53573: Fix Ethernet info for Luxul devices drm: adv7511: Fix low refresh rate register for ADV7533/5 ARM: dts: samsung: s5pv210-smdkv210: correct ethernet reg addresses (split) ARM: dts: s5pv210: add dummy 5V regulator for backlight on SMDKv210 ARM: dts: s5pv210: correct ethernet unit address in SMDKV210 ARM: dts: s5pv210: use defines for IRQ flags in SMDKV210 ARM: dts: s5pv210: add RTC 32 KHz clock in SMDKV210 ARM: dts: samsung: s3c6410-mini6410: correct ethernet reg addresses (split) ARM: dts: s3c64xx: align pinctrl with dtschema ARM: dts: s3c6410: align node SROM bus node name with dtschema in Mini6410 ARM: dts: s3c6410: move fixed clocks under root node in Mini6410 ARM: dts: BCM53573: Use updated "spi-gpio" binding properties ARM: dts: BCM53573: Add cells sizes to PCIe node ARM: dts: BCM53573: Drop nonexistent #usb-cells ARM: dts: BCM53573: Describe on-SoC BCM53125 rev 4 switch ARM: dts: BCM5301X: Harmonize EHCI/OHCI DT nodes name drm/amdgpu: avoid integer overflow warning in amdgpu_device_resize_fb_bar() arm64: dts: qcom: msm8996: Add missing interrupt to the USB2 controller arm64: dts: msm8996: thermal: Add interrupt support quota: fix dqput() to follow the guarantees dquot_srcu should provide quota: add new helper dquot_active() quota: rename dquot_active() to inode_quota_active() quota: factor out dquot_write_dquot() quota: avoid increasing DQST_LOOKUPS when iterating over dirty/inuse list quota: add dqi_dirty_list description to comment of Dquot List Management netrom: Deny concurrent connect(). net/sched: sch_hfsc: Ensure inner classes have fsc curve net: arcnet: Do not call kfree_skb() under local_irq_disable() wifi: ath9k: use IS_ERR() with debugfs_create_dir() wifi: mwifiex: avoid possible NULL skb pointer dereference wifi: ath9k: protect WMI command response buffer replacement with a lock wifi: ath9k: fix races between ath9k_wmi_cmd and ath9k_wmi_ctrl_rx wifi: mwifiex: Fix missed return in oob checks failed path wifi: mwifiex: fix memory leak in mwifiex_histogram_read() fs: ocfs2: namei: check return value of ocfs2_add_entry() lwt: Check LWTUNNEL_XMIT_CONTINUE strictly crypto: caam - fix unchecked return value error Bluetooth: nokia: fix value check in nokia_bluetooth_serdev_probe() wifi: mwifiex: fix error recovery in PCIE buffer descriptor management mwifiex: switch from 'pci_' to 'dma_' API mwifiex: drop 'set_consistent_dma_mask' log message wifi: mwifiex: Fix OOB and integer underflow when rx packets can: gs_usb: gs_usb_receive_bulk_callback(): count RX overflow errors also in case of OOM spi: tegra20-sflash: fix to check return value of platform_get_irq() in tegra_sflash_probe() regmap: rbtree: Use alloc_flags for memory allocations tcp: tcp_enter_quickack_mode() should be static bpf: Clear the probe_addr for uprobe cpufreq: powernow-k8: Use related_cpus instead of cpus in driver.exit() fs: Fix error checking for d_hash_and_lookup() netfilter: nf_tables: missing NFT_TRANS_PREPARE_ERROR in flowtable deactivatation netfilter: nft_flow_offload: fix underflow in flowtable reference counter new helper: lookup_positive_unlocked() eventfd: prevent underflow for eventfd semaphores eventfd: Export eventfd_ctx_do_read() reiserfs: Check the return value from __getblk() Revert "net: macsec: preserve ingress frame ordering" udf: Handle error when adding extent to a file udf: Check consistency of Space Bitmap Descriptor powerpc/32s: Fix assembler warning about r0 powerpc/32: Include .branch_lt in data section net: Avoid address overwrite in kernel_connect ALSA: seq: oss: Fix racy open/close of MIDI devices cifs: add a warning when the in-flight count goes negative sctp: handle invalid error codes without calling BUG() bnx2x: fix page fault following EEH recovery netlabel: fix shift wrapping bug in netlbl_catmap_setlong() scsi: qedi: Fix potential deadlock on &qedi_percpu->p_work_lock idmaengine: make FSL_EDMA and INTEL_IDMA64 depends on HAS_IOMEM net: usb: qmi_wwan: add Quectel EM05GV2 security: keys: perform capable check only on privileged operations platform/x86: intel: hid: Always call BTNL ACPI method ASoC: atmel: Fix the 8K sample parameter in I2SC master ASoc: codecs: ES8316: Fix DMIC config fs/nls: make load_nls() take a const parameter s390/dasd: fix hanging device after request requeue s390/dasd: use correct number of retries for ERP requests m68k: Fix invalid .section syntax vxlan: generalize vxlan_parse_gpe_hdr and remove unused args ethernet: atheros: fix return value check in atl1c_tso_csum() ASoC: da7219: Check for failure reading AAD IRQ events ASoC: da7219: Flush pending AAD IRQ when suspending 9p: virtio: make sure 'offs' is initialized in zc_request pinctrl: amd: Don't show `Invalid config param` errors nilfs2: fix WARNING in mark_buffer_dirty due to discarded buffer reuse nilfs2: fix general protection fault in nilfs_lookup_dirty_data_buffers() fsi: master-ast-cf: Add MODULE_FIRMWARE macro serial: sc16is7xx: fix bug when first setting GPIO direction Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition HID: wacom: remove the battery when the EKR is off USB: serial: option: add FOXCONN T99W368/T99W373 product USB: serial: option: add Quectel EM05G variant (0x030e) modules: only allow symbol_get of EXPORT_SYMBOL_GPL modules rtc: ds1685: use EXPORT_SYMBOL_GPL for ds1685_rtc_poweroff mmc: au1xmmc: force non-modular build and remove symbol_get usage ARM: pxa: remove use of symbol_get() erofs: ensure that the post-EOF tails are all zeroed Conflicts: include/net/tcp.h Change-Id: Ia73d7be3d6cae8d4fd38da7c6d85a977840872d3
638 lines
20 KiB
C
638 lines
20 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_TRACE_EVENT_H
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#define _LINUX_TRACE_EVENT_H
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#include <linux/ring_buffer.h>
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#include <linux/trace_seq.h>
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#include <linux/percpu.h>
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#include <linux/hardirq.h>
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#include <linux/perf_event.h>
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#include <linux/tracepoint.h>
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#include <linux/coresight-stm.h>
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struct trace_array;
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struct trace_buffer;
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struct tracer;
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struct dentry;
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struct bpf_prog;
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const char *trace_print_flags_seq(struct trace_seq *p, const char *delim,
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unsigned long flags,
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const struct trace_print_flags *flag_array);
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const char *trace_print_symbols_seq(struct trace_seq *p, unsigned long val,
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const struct trace_print_flags *symbol_array);
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#if BITS_PER_LONG == 32
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const char *trace_print_flags_seq_u64(struct trace_seq *p, const char *delim,
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unsigned long long flags,
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const struct trace_print_flags_u64 *flag_array);
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const char *trace_print_symbols_seq_u64(struct trace_seq *p,
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unsigned long long val,
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const struct trace_print_flags_u64
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*symbol_array);
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#endif
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const char *trace_print_bitmask_seq(struct trace_seq *p, void *bitmask_ptr,
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unsigned int bitmask_size);
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const char *trace_print_hex_seq(struct trace_seq *p,
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const unsigned char *buf, int len,
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bool concatenate);
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const char *trace_print_array_seq(struct trace_seq *p,
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const void *buf, int count,
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size_t el_size);
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struct trace_iterator;
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struct trace_event;
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int trace_raw_output_prep(struct trace_iterator *iter,
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struct trace_event *event);
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/*
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* The trace entry - the most basic unit of tracing. This is what
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* is printed in the end as a single line in the trace output, such as:
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*
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* bash-15816 [01] 235.197585: idle_cpu <- irq_enter
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*/
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struct trace_entry {
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unsigned short type;
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unsigned char flags;
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unsigned char preempt_count;
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int pid;
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};
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#define TRACE_EVENT_TYPE_MAX \
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((1 << (sizeof(((struct trace_entry *)0)->type) * 8)) - 1)
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/*
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* Trace iterator - used by printout routines who present trace
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* results to users and which routines might sleep, etc:
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*/
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struct trace_iterator {
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struct trace_array *tr;
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struct tracer *trace;
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struct trace_buffer *trace_buffer;
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void *private;
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int cpu_file;
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struct mutex mutex;
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struct ring_buffer_iter **buffer_iter;
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unsigned long iter_flags;
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/* trace_seq for __print_flags() and __print_symbolic() etc. */
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struct trace_seq tmp_seq;
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cpumask_var_t started;
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/* it's true when current open file is snapshot */
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bool snapshot;
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/* The below is zeroed out in pipe_read */
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struct trace_seq seq;
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struct trace_entry *ent;
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unsigned long lost_events;
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int leftover;
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int ent_size;
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int cpu;
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u64 ts;
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loff_t pos;
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long idx;
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/* All new field here will be zeroed out in pipe_read */
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};
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enum trace_iter_flags {
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TRACE_FILE_LAT_FMT = 1,
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TRACE_FILE_ANNOTATE = 2,
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TRACE_FILE_TIME_IN_NS = 4,
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};
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typedef enum print_line_t (*trace_print_func)(struct trace_iterator *iter,
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int flags, struct trace_event *event);
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struct trace_event_functions {
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trace_print_func trace;
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trace_print_func raw;
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trace_print_func hex;
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trace_print_func binary;
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};
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struct trace_event {
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struct hlist_node node;
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struct list_head list;
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int type;
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struct trace_event_functions *funcs;
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};
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extern int register_trace_event(struct trace_event *event);
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extern int unregister_trace_event(struct trace_event *event);
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/* Return values for print_line callback */
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enum print_line_t {
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TRACE_TYPE_PARTIAL_LINE = 0, /* Retry after flushing the seq */
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TRACE_TYPE_HANDLED = 1,
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TRACE_TYPE_UNHANDLED = 2, /* Relay to other output functions */
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TRACE_TYPE_NO_CONSUME = 3 /* Handled but ask to not consume */
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};
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enum print_line_t trace_handle_return(struct trace_seq *s);
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void tracing_generic_entry_update(struct trace_entry *entry,
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unsigned long flags,
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int pc);
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struct trace_event_file;
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struct ring_buffer_event *
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trace_event_buffer_lock_reserve(struct ring_buffer **current_buffer,
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struct trace_event_file *trace_file,
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int type, unsigned long len,
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unsigned long flags, int pc);
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#define TRACE_RECORD_CMDLINE BIT(0)
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#define TRACE_RECORD_TGID BIT(1)
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void tracing_record_taskinfo(struct task_struct *task, int flags);
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void tracing_record_taskinfo_sched_switch(struct task_struct *prev,
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struct task_struct *next, int flags);
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void tracing_record_cmdline(struct task_struct *task);
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void tracing_record_tgid(struct task_struct *task);
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int trace_output_call(struct trace_iterator *iter, char *name, char *fmt, ...);
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struct event_filter;
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enum trace_reg {
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TRACE_REG_REGISTER,
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TRACE_REG_UNREGISTER,
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#ifdef CONFIG_PERF_EVENTS
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TRACE_REG_PERF_REGISTER,
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TRACE_REG_PERF_UNREGISTER,
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TRACE_REG_PERF_OPEN,
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TRACE_REG_PERF_CLOSE,
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/*
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* These (ADD/DEL) use a 'boolean' return value, where 1 (true) means a
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* custom action was taken and the default action is not to be
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* performed.
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*/
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TRACE_REG_PERF_ADD,
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TRACE_REG_PERF_DEL,
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#endif
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};
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struct trace_event_call;
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struct trace_event_class {
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const char *system;
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void *probe;
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#ifdef CONFIG_PERF_EVENTS
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void *perf_probe;
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#endif
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int (*reg)(struct trace_event_call *event,
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enum trace_reg type, void *data);
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int (*define_fields)(struct trace_event_call *);
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struct list_head *(*get_fields)(struct trace_event_call *);
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struct list_head fields;
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int (*raw_init)(struct trace_event_call *);
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};
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extern int trace_event_reg(struct trace_event_call *event,
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enum trace_reg type, void *data);
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struct trace_event_buffer {
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struct ring_buffer *buffer;
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struct ring_buffer_event *event;
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struct trace_event_file *trace_file;
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void *entry;
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unsigned long flags;
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int pc;
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};
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void *trace_event_buffer_reserve(struct trace_event_buffer *fbuffer,
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struct trace_event_file *trace_file,
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unsigned long len);
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void trace_event_buffer_commit(struct trace_event_buffer *fbuffer,
|
|
unsigned long len);
|
|
|
|
enum {
|
|
TRACE_EVENT_FL_FILTERED_BIT,
|
|
TRACE_EVENT_FL_CAP_ANY_BIT,
|
|
TRACE_EVENT_FL_NO_SET_FILTER_BIT,
|
|
TRACE_EVENT_FL_IGNORE_ENABLE_BIT,
|
|
TRACE_EVENT_FL_TRACEPOINT_BIT,
|
|
TRACE_EVENT_FL_KPROBE_BIT,
|
|
TRACE_EVENT_FL_UPROBE_BIT,
|
|
};
|
|
|
|
/*
|
|
* Event flags:
|
|
* FILTERED - The event has a filter attached
|
|
* CAP_ANY - Any user can enable for perf
|
|
* NO_SET_FILTER - Set when filter has error and is to be ignored
|
|
* IGNORE_ENABLE - For trace internal events, do not enable with debugfs file
|
|
* TRACEPOINT - Event is a tracepoint
|
|
* KPROBE - Event is a kprobe
|
|
* UPROBE - Event is a uprobe
|
|
*/
|
|
enum {
|
|
TRACE_EVENT_FL_FILTERED = (1 << TRACE_EVENT_FL_FILTERED_BIT),
|
|
TRACE_EVENT_FL_CAP_ANY = (1 << TRACE_EVENT_FL_CAP_ANY_BIT),
|
|
TRACE_EVENT_FL_NO_SET_FILTER = (1 << TRACE_EVENT_FL_NO_SET_FILTER_BIT),
|
|
TRACE_EVENT_FL_IGNORE_ENABLE = (1 << TRACE_EVENT_FL_IGNORE_ENABLE_BIT),
|
|
TRACE_EVENT_FL_TRACEPOINT = (1 << TRACE_EVENT_FL_TRACEPOINT_BIT),
|
|
TRACE_EVENT_FL_KPROBE = (1 << TRACE_EVENT_FL_KPROBE_BIT),
|
|
TRACE_EVENT_FL_UPROBE = (1 << TRACE_EVENT_FL_UPROBE_BIT),
|
|
};
|
|
|
|
#define TRACE_EVENT_FL_UKPROBE (TRACE_EVENT_FL_KPROBE | TRACE_EVENT_FL_UPROBE)
|
|
|
|
struct trace_event_call {
|
|
struct list_head list;
|
|
struct trace_event_class *class;
|
|
union {
|
|
char *name;
|
|
/* Set TRACE_EVENT_FL_TRACEPOINT flag when using "tp" */
|
|
struct tracepoint *tp;
|
|
};
|
|
struct trace_event event;
|
|
char *print_fmt;
|
|
struct event_filter *filter;
|
|
void *mod;
|
|
void *data;
|
|
/*
|
|
* bit 0: filter_active
|
|
* bit 1: allow trace by non root (cap any)
|
|
* bit 2: failed to apply filter
|
|
* bit 3: trace internal event (do not enable)
|
|
* bit 4: Event was enabled by module
|
|
* bit 5: use call filter rather than file filter
|
|
* bit 6: Event is a tracepoint
|
|
*/
|
|
int flags; /* static flags of different events */
|
|
|
|
#ifdef CONFIG_PERF_EVENTS
|
|
int perf_refcount;
|
|
struct hlist_head __percpu *perf_events;
|
|
struct bpf_prog_array __rcu *prog_array;
|
|
|
|
int (*perf_perm)(struct trace_event_call *,
|
|
struct perf_event *);
|
|
#endif
|
|
};
|
|
|
|
#ifdef CONFIG_PERF_EVENTS
|
|
static inline bool bpf_prog_array_valid(struct trace_event_call *call)
|
|
{
|
|
/*
|
|
* This inline function checks whether call->prog_array
|
|
* is valid or not. The function is called in various places,
|
|
* outside rcu_read_lock/unlock, as a heuristic to speed up execution.
|
|
*
|
|
* If this function returns true, and later call->prog_array
|
|
* becomes false inside rcu_read_lock/unlock region,
|
|
* we bail out then. If this function return false,
|
|
* there is a risk that we might miss a few events if the checking
|
|
* were delayed until inside rcu_read_lock/unlock region and
|
|
* call->prog_array happened to become non-NULL then.
|
|
*
|
|
* Here, READ_ONCE() is used instead of rcu_access_pointer().
|
|
* rcu_access_pointer() requires the actual definition of
|
|
* "struct bpf_prog_array" while READ_ONCE() only needs
|
|
* a declaration of the same type.
|
|
*/
|
|
return !!READ_ONCE(call->prog_array);
|
|
}
|
|
#endif
|
|
|
|
static inline const char *
|
|
trace_event_name(struct trace_event_call *call)
|
|
{
|
|
if (call->flags & TRACE_EVENT_FL_TRACEPOINT)
|
|
return call->tp ? call->tp->name : NULL;
|
|
else
|
|
return call->name;
|
|
}
|
|
|
|
struct trace_array;
|
|
struct trace_subsystem_dir;
|
|
|
|
enum {
|
|
EVENT_FILE_FL_ENABLED_BIT,
|
|
EVENT_FILE_FL_RECORDED_CMD_BIT,
|
|
EVENT_FILE_FL_RECORDED_TGID_BIT,
|
|
EVENT_FILE_FL_FILTERED_BIT,
|
|
EVENT_FILE_FL_NO_SET_FILTER_BIT,
|
|
EVENT_FILE_FL_SOFT_MODE_BIT,
|
|
EVENT_FILE_FL_SOFT_DISABLED_BIT,
|
|
EVENT_FILE_FL_TRIGGER_MODE_BIT,
|
|
EVENT_FILE_FL_TRIGGER_COND_BIT,
|
|
EVENT_FILE_FL_PID_FILTER_BIT,
|
|
EVENT_FILE_FL_WAS_ENABLED_BIT,
|
|
};
|
|
|
|
/*
|
|
* Event file flags:
|
|
* ENABLED - The event is enabled
|
|
* RECORDED_CMD - The comms should be recorded at sched_switch
|
|
* RECORDED_TGID - The tgids should be recorded at sched_switch
|
|
* FILTERED - The event has a filter attached
|
|
* NO_SET_FILTER - Set when filter has error and is to be ignored
|
|
* SOFT_MODE - The event is enabled/disabled by SOFT_DISABLED
|
|
* SOFT_DISABLED - When set, do not trace the event (even though its
|
|
* tracepoint may be enabled)
|
|
* TRIGGER_MODE - When set, invoke the triggers associated with the event
|
|
* TRIGGER_COND - When set, one or more triggers has an associated filter
|
|
* PID_FILTER - When set, the event is filtered based on pid
|
|
* WAS_ENABLED - Set when enabled to know to clear trace on module removal
|
|
*/
|
|
enum {
|
|
EVENT_FILE_FL_ENABLED = (1 << EVENT_FILE_FL_ENABLED_BIT),
|
|
EVENT_FILE_FL_RECORDED_CMD = (1 << EVENT_FILE_FL_RECORDED_CMD_BIT),
|
|
EVENT_FILE_FL_RECORDED_TGID = (1 << EVENT_FILE_FL_RECORDED_TGID_BIT),
|
|
EVENT_FILE_FL_FILTERED = (1 << EVENT_FILE_FL_FILTERED_BIT),
|
|
EVENT_FILE_FL_NO_SET_FILTER = (1 << EVENT_FILE_FL_NO_SET_FILTER_BIT),
|
|
EVENT_FILE_FL_SOFT_MODE = (1 << EVENT_FILE_FL_SOFT_MODE_BIT),
|
|
EVENT_FILE_FL_SOFT_DISABLED = (1 << EVENT_FILE_FL_SOFT_DISABLED_BIT),
|
|
EVENT_FILE_FL_TRIGGER_MODE = (1 << EVENT_FILE_FL_TRIGGER_MODE_BIT),
|
|
EVENT_FILE_FL_TRIGGER_COND = (1 << EVENT_FILE_FL_TRIGGER_COND_BIT),
|
|
EVENT_FILE_FL_PID_FILTER = (1 << EVENT_FILE_FL_PID_FILTER_BIT),
|
|
EVENT_FILE_FL_WAS_ENABLED = (1 << EVENT_FILE_FL_WAS_ENABLED_BIT),
|
|
};
|
|
|
|
struct trace_event_file {
|
|
struct list_head list;
|
|
struct trace_event_call *event_call;
|
|
struct event_filter __rcu *filter;
|
|
struct dentry *dir;
|
|
struct trace_array *tr;
|
|
struct trace_subsystem_dir *system;
|
|
struct list_head triggers;
|
|
|
|
/*
|
|
* 32 bit flags:
|
|
* bit 0: enabled
|
|
* bit 1: enabled cmd record
|
|
* bit 2: enable/disable with the soft disable bit
|
|
* bit 3: soft disabled
|
|
* bit 4: trigger enabled
|
|
*
|
|
* Note: The bits must be set atomically to prevent races
|
|
* from other writers. Reads of flags do not need to be in
|
|
* sync as they occur in critical sections. But the way flags
|
|
* is currently used, these changes do not affect the code
|
|
* except that when a change is made, it may have a slight
|
|
* delay in propagating the changes to other CPUs due to
|
|
* caching and such. Which is mostly OK ;-)
|
|
*/
|
|
unsigned long flags;
|
|
atomic_t sm_ref; /* soft-mode reference counter */
|
|
atomic_t tm_ref; /* trigger-mode reference counter */
|
|
};
|
|
|
|
#define __TRACE_EVENT_FLAGS(name, value) \
|
|
static int __init trace_init_flags_##name(void) \
|
|
{ \
|
|
event_##name.flags |= value; \
|
|
return 0; \
|
|
} \
|
|
early_initcall(trace_init_flags_##name);
|
|
|
|
#define __TRACE_EVENT_PERF_PERM(name, expr...) \
|
|
static int perf_perm_##name(struct trace_event_call *tp_event, \
|
|
struct perf_event *p_event) \
|
|
{ \
|
|
return ({ expr; }); \
|
|
} \
|
|
static int __init trace_init_perf_perm_##name(void) \
|
|
{ \
|
|
event_##name.perf_perm = &perf_perm_##name; \
|
|
return 0; \
|
|
} \
|
|
early_initcall(trace_init_perf_perm_##name);
|
|
|
|
#define PERF_MAX_TRACE_SIZE 2048
|
|
|
|
#define MAX_FILTER_STR_VAL 256 /* Should handle KSYM_SYMBOL_LEN */
|
|
|
|
enum event_trigger_type {
|
|
ETT_NONE = (0),
|
|
ETT_TRACE_ONOFF = (1 << 0),
|
|
ETT_SNAPSHOT = (1 << 1),
|
|
ETT_STACKTRACE = (1 << 2),
|
|
ETT_EVENT_ENABLE = (1 << 3),
|
|
ETT_EVENT_HIST = (1 << 4),
|
|
ETT_HIST_ENABLE = (1 << 5),
|
|
};
|
|
|
|
extern int filter_match_preds(struct event_filter *filter, void *rec);
|
|
|
|
extern enum event_trigger_type
|
|
event_triggers_call(struct trace_event_file *file, void *rec,
|
|
struct ring_buffer_event *event);
|
|
extern void
|
|
event_triggers_post_call(struct trace_event_file *file,
|
|
enum event_trigger_type tt);
|
|
|
|
bool trace_event_ignore_this_pid(struct trace_event_file *trace_file);
|
|
|
|
/**
|
|
* trace_trigger_soft_disabled - do triggers and test if soft disabled
|
|
* @file: The file pointer of the event to test
|
|
*
|
|
* If any triggers without filters are attached to this event, they
|
|
* will be called here. If the event is soft disabled and has no
|
|
* triggers that require testing the fields, it will return true,
|
|
* otherwise false.
|
|
*/
|
|
static inline bool
|
|
trace_trigger_soft_disabled(struct trace_event_file *file)
|
|
{
|
|
unsigned long eflags = file->flags;
|
|
|
|
if (!(eflags & EVENT_FILE_FL_TRIGGER_COND)) {
|
|
if (eflags & EVENT_FILE_FL_TRIGGER_MODE)
|
|
event_triggers_call(file, NULL, NULL);
|
|
if (eflags & EVENT_FILE_FL_SOFT_DISABLED)
|
|
return true;
|
|
if (eflags & EVENT_FILE_FL_PID_FILTER)
|
|
return trace_event_ignore_this_pid(file);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
#ifdef CONFIG_BPF_EVENTS
|
|
unsigned int trace_call_bpf(struct trace_event_call *call, void *ctx);
|
|
int perf_event_attach_bpf_prog(struct perf_event *event, struct bpf_prog *prog);
|
|
void perf_event_detach_bpf_prog(struct perf_event *event);
|
|
int perf_event_query_prog_array(struct perf_event *event, void __user *info);
|
|
int bpf_probe_register(struct bpf_raw_event_map *btp, struct bpf_prog *prog);
|
|
int bpf_probe_unregister(struct bpf_raw_event_map *btp, struct bpf_prog *prog);
|
|
struct bpf_raw_event_map *bpf_find_raw_tracepoint(const char *name);
|
|
int bpf_get_perf_event_info(const struct perf_event *event, u32 *prog_id,
|
|
u32 *fd_type, const char **buf,
|
|
u64 *probe_offset, u64 *probe_addr);
|
|
#else
|
|
static inline unsigned int trace_call_bpf(struct trace_event_call *call, void *ctx)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
static inline int
|
|
perf_event_attach_bpf_prog(struct perf_event *event, struct bpf_prog *prog)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline void perf_event_detach_bpf_prog(struct perf_event *event) { }
|
|
|
|
static inline int
|
|
perf_event_query_prog_array(struct perf_event *event, void __user *info)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
static inline int bpf_probe_register(struct bpf_raw_event_map *btp, struct bpf_prog *p)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
static inline int bpf_probe_unregister(struct bpf_raw_event_map *btp, struct bpf_prog *p)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
static inline struct bpf_raw_event_map *bpf_find_raw_tracepoint(const char *name)
|
|
{
|
|
return NULL;
|
|
}
|
|
static inline int bpf_get_perf_event_info(const struct perf_event *event,
|
|
u32 *prog_id, u32 *fd_type,
|
|
const char **buf, u64 *probe_offset,
|
|
u64 *probe_addr)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
#endif
|
|
|
|
enum {
|
|
FILTER_OTHER = 0,
|
|
FILTER_STATIC_STRING,
|
|
FILTER_DYN_STRING,
|
|
FILTER_PTR_STRING,
|
|
FILTER_TRACE_FN,
|
|
FILTER_COMM,
|
|
FILTER_CPU,
|
|
};
|
|
|
|
extern int trace_event_raw_init(struct trace_event_call *call);
|
|
extern int trace_define_field(struct trace_event_call *call, const char *type,
|
|
const char *name, int offset, int size,
|
|
int is_signed, int filter_type);
|
|
extern int trace_add_event_call_nolock(struct trace_event_call *call);
|
|
extern int trace_remove_event_call_nolock(struct trace_event_call *call);
|
|
extern int trace_add_event_call(struct trace_event_call *call);
|
|
extern int trace_remove_event_call(struct trace_event_call *call);
|
|
extern int trace_event_get_offsets(struct trace_event_call *call);
|
|
|
|
#define is_signed_type(type) (((type)(-1)) < (type)1)
|
|
|
|
int trace_set_clr_event(const char *system, const char *event, int set);
|
|
|
|
/*
|
|
* The double __builtin_constant_p is because gcc will give us an error
|
|
* if we try to allocate the static variable to fmt if it is not a
|
|
* constant. Even with the outer if statement optimizing out.
|
|
*/
|
|
#define event_trace_printk(ip, fmt, args...) \
|
|
do { \
|
|
__trace_printk_check_format(fmt, ##args); \
|
|
tracing_record_cmdline(current); \
|
|
if (__builtin_constant_p(fmt)) { \
|
|
static const char *trace_printk_fmt \
|
|
__attribute__((section("__trace_printk_fmt"))) = \
|
|
__builtin_constant_p(fmt) ? fmt : NULL; \
|
|
\
|
|
__trace_bprintk(ip, trace_printk_fmt, ##args); \
|
|
} else \
|
|
__trace_printk(ip, fmt, ##args); \
|
|
} while (0)
|
|
|
|
#ifdef CONFIG_PERF_EVENTS
|
|
struct perf_event;
|
|
|
|
DECLARE_PER_CPU(struct pt_regs, perf_trace_regs);
|
|
DECLARE_PER_CPU(int, bpf_kprobe_override);
|
|
|
|
extern int perf_trace_init(struct perf_event *event);
|
|
extern void perf_trace_destroy(struct perf_event *event);
|
|
extern int perf_trace_add(struct perf_event *event, int flags);
|
|
extern void perf_trace_del(struct perf_event *event, int flags);
|
|
#ifdef CONFIG_KPROBE_EVENTS
|
|
extern int perf_kprobe_init(struct perf_event *event, bool is_retprobe);
|
|
extern void perf_kprobe_destroy(struct perf_event *event);
|
|
extern int bpf_get_kprobe_info(const struct perf_event *event,
|
|
u32 *fd_type, const char **symbol,
|
|
u64 *probe_offset, u64 *probe_addr,
|
|
bool perf_type_tracepoint);
|
|
#endif
|
|
#ifdef CONFIG_UPROBE_EVENTS
|
|
extern int perf_uprobe_init(struct perf_event *event, bool is_retprobe);
|
|
extern void perf_uprobe_destroy(struct perf_event *event);
|
|
extern int bpf_get_uprobe_info(const struct perf_event *event,
|
|
u32 *fd_type, const char **filename,
|
|
u64 *probe_offset, u64 *probe_addr,
|
|
bool perf_type_tracepoint);
|
|
#endif
|
|
extern int ftrace_profile_set_filter(struct perf_event *event, int event_id,
|
|
char *filter_str);
|
|
extern void ftrace_profile_free_filter(struct perf_event *event);
|
|
void perf_trace_buf_update(void *record, u16 type);
|
|
void *perf_trace_buf_alloc(int size, struct pt_regs **regs, int *rctxp);
|
|
|
|
void bpf_trace_run1(struct bpf_prog *prog, u64 arg1);
|
|
void bpf_trace_run2(struct bpf_prog *prog, u64 arg1, u64 arg2);
|
|
void bpf_trace_run3(struct bpf_prog *prog, u64 arg1, u64 arg2,
|
|
u64 arg3);
|
|
void bpf_trace_run4(struct bpf_prog *prog, u64 arg1, u64 arg2,
|
|
u64 arg3, u64 arg4);
|
|
void bpf_trace_run5(struct bpf_prog *prog, u64 arg1, u64 arg2,
|
|
u64 arg3, u64 arg4, u64 arg5);
|
|
void bpf_trace_run6(struct bpf_prog *prog, u64 arg1, u64 arg2,
|
|
u64 arg3, u64 arg4, u64 arg5, u64 arg6);
|
|
void bpf_trace_run7(struct bpf_prog *prog, u64 arg1, u64 arg2,
|
|
u64 arg3, u64 arg4, u64 arg5, u64 arg6, u64 arg7);
|
|
void bpf_trace_run8(struct bpf_prog *prog, u64 arg1, u64 arg2,
|
|
u64 arg3, u64 arg4, u64 arg5, u64 arg6, u64 arg7,
|
|
u64 arg8);
|
|
void bpf_trace_run9(struct bpf_prog *prog, u64 arg1, u64 arg2,
|
|
u64 arg3, u64 arg4, u64 arg5, u64 arg6, u64 arg7,
|
|
u64 arg8, u64 arg9);
|
|
void bpf_trace_run10(struct bpf_prog *prog, u64 arg1, u64 arg2,
|
|
u64 arg3, u64 arg4, u64 arg5, u64 arg6, u64 arg7,
|
|
u64 arg8, u64 arg9, u64 arg10);
|
|
void bpf_trace_run11(struct bpf_prog *prog, u64 arg1, u64 arg2,
|
|
u64 arg3, u64 arg4, u64 arg5, u64 arg6, u64 arg7,
|
|
u64 arg8, u64 arg9, u64 arg10, u64 arg11);
|
|
void bpf_trace_run12(struct bpf_prog *prog, u64 arg1, u64 arg2,
|
|
u64 arg3, u64 arg4, u64 arg5, u64 arg6, u64 arg7,
|
|
u64 arg8, u64 arg9, u64 arg10, u64 arg11, u64 arg12);
|
|
void perf_trace_run_bpf_submit(void *raw_data, int size, int rctx,
|
|
struct trace_event_call *call, u64 count,
|
|
struct pt_regs *regs, struct hlist_head *head,
|
|
struct task_struct *task);
|
|
|
|
static inline void
|
|
perf_trace_buf_submit(void *raw_data, int size, int rctx, u16 type,
|
|
u64 count, struct pt_regs *regs, void *head,
|
|
struct task_struct *task)
|
|
{
|
|
perf_tp_event(type, count, raw_data, size, regs, head, rctx, task);
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif /* _LINUX_TRACE_EVENT_H */
|