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Нашёл 1 тыс. ответов for 'bpf'.

BPF: Tracing and More
Berkeley Packet Filter. # tcpdump host 127.0.0.1 and port 22 -d. Optimizes tcpdump filter performance An in-kernel sandboxed virtual machine. Enhanced BPF.

http://www.brendangregg.com/Slides/LCA2017_BPF_tracing_and_more.pdf

BPF – in-kernel virtual machine
• bpf+kprobe – dtrace/systemtap like • bpf+syscalls – analytics and monitoring • bpf+tracepoints 3. extended BPF for in-kernel optimizations. • kernel interface is kept unmodified. subsystems use bpf to...

http://vger.kernel.org/netconf2015Starovoitov-bpf_collabsummit_2015feb20.pdf

edgewall-LPC | BPF Firewall prototype
BPF Firewall. Deployment @ Facebook. • No per rule stats granularity like in iptables • But we have BPF Firewall. Performance. • iptables has a linearly increasing cpu-util as packets hit lower rules...

http://vger.kernel.org/lpc_net2018_talks/ebpf-firewall-LPC.pdf

BPF, Cilium, bplter
BPF Maintenance: Testing, debugging, documentation. BPF kernel selftests. test verier + test kmod.sh alone run 2,018 test progs Biggest subsystem under kselftests along with RCU-torture Often...

http://vger.kernel.org/netconf2018_files/DanielBorkmann_netconf2018.pdf

Packet Capture, Filtering and Analysis - Today's Challenges with 20...
BPF (Berkeley Packet Filter) sits between link-level driver and the user space. BPF is protocol independant and use a lter-before-buering approach. (NIT on SunOS is using the opposite approach).

https://www.foo.be/cours/dess-20112012/bpf/bpf.pdf

David Beckett
XDP allows packets to be reflected, filtered or redirected without traversing networking stack. ▶ eBPF programs classify/modify traffic and return XDP actions Note: cls_bpf in TC works in same manner.

https://conferences.sigcomm.org/sigcomm/2018/files/slides/hda/paper_1.2.pdf

BPF and XDP Explained
BPF and XDP Explained. Nic Viljoen & Simon Horman DXDD. Due to its upstream safety and kernel support BPF provides a safe, flexible and scalable networking tool.

https://open-nfp.org/s/pdfs/dxdd-europe-bpf-and-xdp-explained.pdf

Extended BPF and Data Plane Extensibility
• BPF - Berkeley Packet Filter • Introduced in Linux in 1997 in kernel version 2.1.75 • Initially used as socket filter by packet capture tool tcpdump (via libpcap). Use Cases: • socket filters...

https://videos.cdn.redhat.com/summit2015/presentations/13737_an-overview-of-linux-networking-subsystem-extended-bpf.pdf

The Next Generation Firewall for | Berkley Packet Filter (xt_bpf)
• Match packets based Berkley Packet Filter (BPF) filters. # iptables -A OUTPUT -m bpf \ --bytecode "8,40 0 0 12,21 1 0 [...]" -j ACCEPT. • Use tcpdump to generate the bytecode

https://www.redhat.com/files/summit/2014/graf_h_1100_next-generation_firewall_rhel7.pdf

BPF
Berkeley Packet Filters (BPF). • Attach BPF programs to kprobes/uprobes (4.1) and tracepoints (4.7) • Data structures: array, hash (expandable), stack map (4.6) • Output to trace buffer (4.3) and...

https://www.usenix.org/sites/default/files/conference/protected-files/srecon16europe_slides_goldshtein_linux.pdf