StackOverflow Questions for Tag: bpf

Swarn

Reputation: 89

libbpf: failed to find BTF for extern 'syscall'

ebpfbpf

Score: 0

Answers: 0

Dominus

Reputation: 998

How do you compute the performance impact of a eBPF probe?

performancemonitoringbpfebpf

Score: 7

Answers: 1

Alen Antony

Reputation: 5

Is there a way to safely update an eBPF map with a spin lock held in the ebpf program?

ebpfbpfxdp-bpfbcc-bpflibbpf

Score: 0

Answers: 1

Alen Antony

Reputation: 5

Is there a BPF_MAP_LOOKUP_AND_UPDATE_ELEM syscall similar to BPF_MAP_LOOKUP_AND_DELETE_ELEM?

ebpfbpfxdp-bpfbcc-bpflibbpf

Score: 0

Answers: 1

Wu J

Reputation: 3

where is the entry point in kernel for an eBPF msg_verdict program?

ebpfbpfxdp-bpf

Score: 0

Answers: 1

Marcel

Reputation: 81

Can't open ftrace_enabled on android: No such device

androidebpfbpfandroid-kernel

Score: 0

Answers: 0

user24700654

Reputation: 1

Why does the checksum not change after my ebpf program uses bpf_skb_store_bytes to modify the package?

checksumebpfbpfxdp-bpfegress

Score: 0

Answers: 2

nullptr

Reputation: 25

Attaching uprobe handler multiple times to same function (multiple instances of libbpf user space program on same application)

ebpfbpflibbpfuprobe

Score: 0

Answers: 0

Vojak

Reputation: 11

How to uniquely identify uprobes when targeting multi threaded applications

ebpfbpflibbpf

Score: 0

Answers: 0

NobinPegasus

Reputation: 787

Get PID from tc code using struct __sk_buff *skb

csocketsebpfbpf

Score: -1

Answers: 1

luke zou

Reputation: 61

Is it possible to create and send a packet from a bpf program?

linux-kernelebpfbpf

Score: 4

Answers: 1

Swarn

Reputation: 89

eBPF function with void return type : verifier question

linuxebpfbpfxdp-bpf

Score: 1

Answers: 1

NobinPegasus

Reputation: 787

ImportError: cannot import name 'BPF' from 'bcc' (unknown location)

pythonebpfbpfbccbcc-bpf

Score: 0

Answers: 1

Shriyam Khatiwada

Reputation: 11

My professor wanted me to use eBPF to find how the 802.11x WiFI headers are added on the device from the system what should I do here?

kernelebpfbpf

Score: 0

Answers: 0

lbrndnr

Reputation: 3389

Invalid access when reading a packet using bpf_loop

clinux-kernelebpfbpfxdp-bpf

Score: 0

Answers: 0

user24403572

Reputation: 11

Kernel verifier complains when copying multiple UDP payload segments

ebpfbpfxdp-bpf

Score: 1

Answers: 0

Zezhou Wang

Reputation: 31

How do I copy data to buffer in eBPF?

cebpfbpfxdp-bpf

Score: 1

Answers: 1

Mnemosyne

Reputation: 1192

Scapy Sniffer does not detect IPv6 packets

ipv6scapybpf

Score: 1

Answers: 1

NobinPegasus

Reputation: 787

Detect and capture openconnect traffic using eBPF/XDP

packet-capturebpfxdp-bpfopenconnect

Score: 0

Answers: 0

NobinPegasus

Reputation: 787

invalid access to map value, value_size=128 off=0 size=0; libbpf: prog 'xdp_parser_func': failed to load: -13

ebpfbpfxdp-bpflibbpf

Score: -2

Answers: 1

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StackOverflow Questions for Tag: bpf

libbpf: failed to find BTF for extern &#39;syscall&#39;

How do you compute the performance impact of a eBPF probe?

Is there a way to safely update an eBPF map with a spin lock held in the ebpf program?

Is there a BPF_MAP_LOOKUP_AND_UPDATE_ELEM syscall similar to BPF_MAP_LOOKUP_AND_DELETE_ELEM?

where is the entry point in kernel for an eBPF msg_verdict program?

Can&#39;t open ftrace_enabled on android: No such device

Why does the checksum not change after my ebpf program uses bpf_skb_store_bytes to modify the package?

Attaching uprobe handler multiple times to same function (multiple instances of libbpf user space program on same application)

How to uniquely identify uprobes when targeting multi threaded applications

Get PID from tc code using struct __sk_buff *skb

Is it possible to create and send a packet from a bpf program?

eBPF function with void return type : verifier question

ImportError: cannot import name &#39;BPF&#39; from &#39;bcc&#39; (unknown location)

My professor wanted me to use eBPF to find how the 802.11x WiFI headers are added on the device from the system what should I do here?

Invalid access when reading a packet using bpf_loop

Kernel verifier complains when copying multiple UDP payload segments

How do I copy data to buffer in eBPF?

Scapy Sniffer does not detect IPv6 packets

Detect and capture openconnect traffic using eBPF/XDP

invalid access to map value, value_size=128 off=0 size=0; libbpf: prog &#39;xdp_parser_func&#39;: failed to load: -13

libbpf: failed to find BTF for extern 'syscall'

Can't open ftrace_enabled on android: No such device

ImportError: cannot import name 'BPF' from 'bcc' (unknown location)

invalid access to map value, value_size=128 off=0 size=0; libbpf: prog 'xdp_parser_func': failed to load: -13