Open vSwitch ソースコードの全体像

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1. Open vSwitch ιʔείʔυͷશମ૾ ਗ਼ਫɹᠳ (@oshothebig)
2. ιʔείʔυͷೖखํ๏ • ϦϦʔε൛ (v.1.4.0) • http://openvswitch.org/releases/openvswitch-1.4.0.tar.gz • ։ൃ൛ • git clone git://openvswitch.org/openvswitch • git clone http://openvswitch.org/git/openvswitch
3. σΟϨΫτϦߏ੒
4. ͱΓ͋͑ͣن໛ΛݟΔ • *.c, *.h, *.pyͷϑΝΠϧͷҰཡ commit: 8a5b3cfd91841c97fbc8a003857cacbd602646ed • https://gist.github.com/2111386 • 478ϑΝΠϧ, ߹ܭ164700ߦ
5. ߦ਺τοϓ10 6494 ./ofproto/ofproto-dpif.c 4551 ./lib/netdev-linux.c 4096 ./ofproto/ofproto.c 3953 ./lib/ofp-util.c 3924 ./utilities/ovs-vsctl.c 3749 ./vswitchd/bridge.c 2461 ./lib/meta-flow.c 2350 ./python/compat/argparse.py 2263 ./lib/ovsdb-idl.c 2241 ./datapath/datapath.c
6. • README • INSTALL.* • ͦͷଞςΩετ • build-aux/ • datapath/ • debian/ • include/ • lib/ • m4/ • ofproto/ • ovsdb/ • python/ • rhel/ • tests/ • third-party/ • utilities/ • vswitchd/ • xenserver/
7. • ίϯϙʔωϯτͷઆ໌ • ovs-vswitchd • ovsdb-server • ovs-brcompatd • ovs-dpctl • ovs-appctl • ovsdbmonitor • ovs-controller • ovs-ofctl • ovs-pki • patch for tcpdump • scripts for RPM READMEΛಡΉ
8. ovs-vswitchd • LinuxΧʔωϧϞδϡʔϧͱҰॹʹͳͬͯϑϩʔʹج ͍ͮͨεΠονϯάΛߦ͏ͨΊͷσʔϞϯ
9. ovsdb-server • ܰྔσʔλϕʔεαʔό • ovs-vswitchd͕ઃఆ৘ใΛऔಘ͢ΔͨΊʹ໰͍߹Θͤ Λߦ͏ઌͷαʔό
10. ovs-brcompatd • ovs-vswitchd͕LinuxϒϦοδΛஔ͖׵͑ΔܗͰಈ࡞͞ ͤΔͨΊͷσʔϞϯ • LinuxΧʔωϧϞδϡʔϧͱҰॹʹͳͬͯಈ࡞͠ɺϒ Ϧοδʹର͢ΔioctlΛΠϯλʔηϓτ͢Δ
11. ovs-dpctl • ΧʔωϧϞδϡʔϧͷઃఆΛߦ͏ͨΊͷπʔϧ
12. ovs-vsctl • ovs-vswitchdͷઃఆͷ໰͍߹Θͤͱߋ৽Λߦ͏Ϣʔ ςΟϦςΟ
13. ovs-appctl • ಈ࡞தͷOpen vSwitchσʔϞϯʹίϚϯυΛૹΔϢʔ ςΟϦςΟ
14. ovsdbmonitor • OVSσʔλϕʔεͱOpenFlowςʔϒϧΛ֎෦͔ΒݟΔ ͨΊͷGUIπʔϧ
15. ovs-controller • ୯७ͳOpenFlowίϯτϩʔϥ
16. ovs-ofctl • OpenFlowεΠον͓Αͼίϯτϩʔϥʹ໰͍߹Θͤ Λߦ͏ͨΊͷϢʔςΟϦςΟ
17. ovs-pki • OpenFlowεΠονͷͨΊͷެ։伴ج൫Λ࡞੒ɺ؅ཧ ͢ΔϢʔςΟϦςΟ
18. ovs-appctl ovs-controller ovs-dpctl ovs-pki ovs-vsctl utilities/ ovs-ofctl
19. ovs-vswitchd ovs-brcompatd vswitchd/
20. ovsdb-server ovsdb/
21. ovsdbmonitor ovsdb/ovsdbmonitor/
22. patch for tcpdump third-party/
23. DESIGN
24. Design Decision In Open vSwitch
25. OpenFlowʹؔ͢Δ ઃܭํ਑ʁ
26. PORTING
27. ଞϓϥοτϑΥʔϜ ΁ͷҠ২ํ๏ͷઆ໌
28. ΞʔΩςΫνϟͷ આ໌͋Γ
29. ॏཁ
30. ༻ޠղઆʢฆΒΘ͍͠ʣ datapath/ vport --------- vswitchd/ iface port ofproto/ port bundle lib/bond.c slave bond lib/lacp.c slave lacp lib/netdev.c netdev --------- database Interface Port
31. ovs-vswitchd ofproto netdev netdev provider ofproto provider ΞʔΩςΫνϟ ovsdb-server OpenFlow controllers
32. ovs-vswitchd ofproto netdev netdev provider ofproto provider ΞʔΩςΫνϟ ovsdb-server OpenFlow controllers
33. ofproto • OpenFlowίϯτϩʔϥͱ΍ΓͱΓ • ofproto providerΛ௨ͯ͠εΠονͷ࣮૷ͱ΍ΓͱΓ • ofproto/ʹ֨ೲ͞Ε͍ͯΔ
34. ovs-vswitchd ofproto netdev netdev provider ofproto provider ΞʔΩςΫνϟ ovsdb-server OpenFlow controllers
35. ovs-vswitchd ofproto netdev netdev provider ofproto provider ΞʔΩςΫνϟ ovsdb-server OpenFlow controllers
36. netdev • ωοτϫʔΫσόΠεͱͷ΍ΓͱΓΛந৅Խ • EthernetΠϯλʔϑΣΠε • netdev provider΁ͷബ͍ϨΠϠʔͱͯ͠ಇ͘ • lib/netdev.cʹ͋Δ
37. ovs-vswitchd ofproto netdev netdev provider ofproto provider ΞʔΩςΫνϟ ovsdb-server OpenFlow controllers
38. ovs-vswitchd ofproto netdev netdev provider ofproto provider ΞʔΩςΫνϟ ovsdb-server OpenFlow controllers
39. netdev provider • ωοτϫʔΫσόΠε(e.g. eth0)ʹରͯ͠ͷOS΍ϋʔ υ΢ΣΞʹಛ༗ͷΠϯλʔϑΣΠεΛ࣮૷ • εΠονͷ֤ϙʔτ͸netdevͱͯ͠ಈ࡞͠ͳ͚Ε͹ͳ Βͳ͍ • lib/netdev-provider.hதͷnetdev_classߏ଄ମ͕ॏཁ • ଟ͘ͷؔ਺ϙΠϯλ͔Βߏ੒͞ΕΔ
40. netdevͷΠϯλʔϑΣΠε • OpenFlowͷػೳΛ࣮૷͢ΔͨΊʹ࠷௿ݶඞཁͳؔ਺ • ϙʔτͷMACΞυϨεͷใࠂ • Open vSwitchͷΦϓγϣϯͷػೳΛ࣮૷͢ΔͨΊʹඞ ཁͳؔ਺ • ARPςʔϒϧͷݕࠪ(in-band੍ޚͷͨΊ) • ಛఆͷ࣮૷Λߦ͏ͨΊʹඞཁͱͳΔؔ਺
41. netdevͷ࣮૷ • lib/netdev-linux.c: LinuxͷΧʔωϧݺͼग़͠Λ࢖ͬͨ LinuxͷωοτϫʔΫσόΠεͷͨΊͷ࣮૷ɻϑϧػ ೳΛ࣮૷ͨ͠netdev࣮૷ͱͯ͠ࢀߟʹͳΔ • lib/netdev-vport.c: datapathϞδϡʔϧ͕࣮૷͢ΔԾ૝ ϙʔτػೳΛαϙʔτ࣮ͨ͠૷Ͱɺnetdevͷ࠷௿ݶͷ ࣮૷ͱͯ͠ࢀߟʹͳΔ • lib/netdev-dummy.c: ςετͰ༗༻ͳμϛʔ࣮૷
42. ovs-vswitchd ofproto netdev netdev provider ofproto provider ΞʔΩςΫνϟ ovsdb-server OpenFlow controllers
43. ovs-vswitchd ofproto netdev netdev provider ofproto provider ΞʔΩςΫνϟ ovsdb-server OpenFlow controllers
44. ovs-vswitchd ofproto netdev netdev provider ofproto- dpif OpenFlow controllers ovsdb-server dpif dpif provider datapath Userspace Kernel Implementation of ofproto provider Physical NIC
45. ΧʔωϧۭؒͱϢʔβۭؒ • ϢʔβۭؒͰͷ࣮૷ • Ұ൪ख͕͔͔ؒΒͳ͍͕ɺੑೳ͸௿͍ • ΧʔωϧۭؒͰͷ࣮૷ • ੑೳ͸ߴ͍͕ɺඞཁͳίʔυྔ͕ଟ͍ • ೋͭͷબ୒ࢶ • ofproto provider • dpif provider
46. ofproto provider • OpenFlowεΠονΛ௚઀Ϟχλʔͨ͠Γ੍ޚͨ͠Γ ͢ΔͨΊͷ΋ͷ • TCAMͷΑ͏ͳϫΠϧυΧʔυͷϋʔυ΢ΣΞͰͷ ϚονϯάʹରԠͤ͞Δ৔߹ • ofproto/ofproto-provider.hͷதͷofproto_classߏ଄ମͰ ΠϯλʔϑΣΠε͕ఆٛ͞Ε͍ͯΔ
47. dpif provider • Open vSwitchͰαϙʔτ͞Ε͍ͯΔϘϯσΟϯάͳͲ ͷػೳΛ׆༻͢Δͷʹඞཁ • ௨ৗɺofproto providerΛ࣮૷͢ΔΑΓ༰қ • lib/dpif-provider.hͷதͷdpif_classߏ଄ମͰΠϯλʔ ϑΣΠε͕ఆٛ͞Ε͍ͯΔ
48. dpifͷ࣮૷ • lib/dpif-linux.c: Linux༻ͷdpifͷ࣮૷ • ΧʔωϧϞδϡʔϧͱ࿈ܞͯ͠ಈ࡞͢Δ • lib/dpif-netdev.c: Ұൠతͳdpifͷ࣮૷ • εΠονϯάಈ࡞Λશͯߦ͍ͬͯΔ • Ϣʔβʔۭؒͷ࣮૷Ͱ࢖ΘΕ͍ͯΔ
49. ·ͱΊ
50. ovs-appctl ovs-controller ovs-dpctl ovs-pki ovs-vsctl utilities/ ovs-ofctl
51. ovs-vswitchd ovs-brcompatd vswitchd/
52. ovsdb-server ovsdb/
53. ovsdbmonitor ovsdb/ovsdbmonitor/
54. ϑΥϫʔσΟϯά datapath/
55. netdev provider netdev_classߏ଄ମ lib/netdev-provider.h
56. ofproto provider ofproto_classߏ଄ମ lib/ofproto-provider.h
57. dpif provider dpif_classߏ଄ମ lib/dpif-provider.h
58. • Linux 3.3ʹίʔυ͕औΓࠐ·Εͨ • MLͰͷ͓஌Βͤɿhttp://bit.ly/HEQntI • औΓࠐ·Εͨίʔυɿhttp://bit.ly/HEQzZM • OpenFlow 1.1, 1.2΁ͷରԠ • include/openflow/openflow-1.[012].h • ํ਑ɿhttp://bit.ly/HmVdCQ ࠷ۙͷ࿩୊
59. ऴΘΓ