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qemu / qemu / 18995b9808dc48897bda6ed93ce3e978191f7251
commit18995b9808dc48897bda6ed93ce3e978191f7251[log] [tgz]
authorNolan <nolan@sigbus.net>Thu Oct 15 16:53:55 2009 -0700
committerAnthony Liguori <aliguori@us.ibm.com>Tue Oct 27 12:28:36 2009 -0500
treee2ac79258deed330f3c25e352b728a588e1064b6
parentff56954baf9cfab5cbbe18d10b4a09e4a17f39a8 [diff]
Send a RARP packet after migration.

Currently, after a migration qemu sends a broadcast packet to update
switches' MAC->port mappings.

Unfortunately, it picks a random (constant) ethertype and crosses its
fingers that no one else is using it.

This patch causes it to send a RARP packet instead.  RARP was chosen for
2 reasons.  One, it is always harmless, and will continue to be so even
as new ethertypes are allocated.  Two, it is what VMware ESX sends, so
people who write filtering rules for switches already know about it.

I also changed the code to send SELF_ANNOUNCE_ROUNDS packets, instead of
SELF_ANNOUNCE_ROUNDS + 1, and added a simple backoff scheme.

Signed-off-by: Nolan Leake <nolan <at> sigbus.net>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
1 file changed
tree: e2ac79258deed330f3c25e352b728a588e1064b6
  1. audio/
  2. block/
  3. bsd-user/
  4. darwin-user/
  5. default-configs/
  6. fpu/
  7. gdb-xml/
  8. hw/
  9. linux-user/
  10. pc-bios/
  11. roms/
  12. slirp/
  13. target-alpha/
  14. target-arm/
  15. target-cris/
  16. target-i386/
  17. target-m68k/
  18. target-microblaze/
  19. target-mips/
  20. target-ppc/
  21. target-sh4/
  22. target-sparc/
  23. tcg/
  24. tests/
  25. .gitignore
  26. .gitmodules
  27. a.out.h
  28. acl.c
  29. acl.h
  30. aes.c
  31. aes.h
  32. aio.c
  33. alpha-dis.c
  34. alpha.ld
  35. arm-dis.c
  36. arm-semi.c
  37. arm.ld
  38. balloon.h
  39. block.c
  40. block.h
  41. block_int.h
  42. bswap.h
  43. bt-host.c
  44. bt-host.h
  45. bt-vhci.c
  46. buffered_file.c
  47. buffered_file.h
  48. cache-utils.c
  49. cache-utils.h
  50. Changelog
  51. check-qdict.c
  52. check-qint.c
  53. check-qlist.c
  54. check-qstring.c
  55. cmd.c
  56. cmd.h
  57. cocoa.m
  58. CODING_STYLE
  59. config.h
  60. configure
  61. console.c
  62. console.h
  63. COPYING
  64. COPYING.LIB
  65. cpu-all.h
  66. cpu-common.h
  67. cpu-defs.h
  68. cpu-exec.c
  69. create_config
  70. cris-dis.c
  71. curses.c
  72. curses_keys.h
  73. cutils.c
  74. d3des.c
  75. d3des.h
  76. def-helper.h
  77. device_tree.c
  78. device_tree.h
  79. dis-asm.h
  80. disas.c
  81. disas.h
  82. dma-helpers.c
  83. dma.h
  84. dyngen-exec.h
  85. elf.h
  86. envlist.c
  87. envlist.h
  88. exec-all.h
  89. exec.c
  90. feature_to_c.sh
  91. gdbstub.c
  92. gdbstub.h
  93. gen-icount.h
  94. host-utils.c
  95. host-utils.h
  96. hostregs_helper.h
  97. hpet.h
  98. hppa-dis.c
  99. hppa.ld
  100. hxtool
  101. i386-dis.c
  102. i386.ld
  103. ia64.ld
  104. ioport-user.c
  105. ioport.c
  106. ioport.h
  107. keymaps.c
  108. keymaps.h
  109. kvm-all.c
  110. kvm.h
  111. libfdt_env.h
  112. LICENSE
  113. linux-aio.c
  114. m68k-dis.c
  115. m68k-semi.c
  116. m68k.ld
  117. MAINTAINERS
  118. Makefile
  119. Makefile.hw
  120. Makefile.target
  121. Makefile.user
  122. microblaze-dis.c
  123. migration-exec.c
  124. migration-fd.c
  125. migration-tcp.c
  126. migration-unix.c
  127. migration.c
  128. migration.h
  129. mips-dis.c
  130. mips.ld
  131. module.c
  132. module.h
  133. monitor.c
  134. monitor.h
  135. nbd.c
  136. nbd.h
  137. net-checksum.c
  138. net-queue.c
  139. net-queue.h
  140. net.c
  141. net.h
  142. osdep.c
  143. osdep.h
  144. path.c
  145. pci-ids.txt
  146. posix-aio-compat.c
  147. ppc-dis.c
  148. ppc.ld
  149. ppc64.ld
  150. qdict-test-data.txt
  151. qdict.c
  152. qdict.h
  153. qemu-aio.h
  154. qemu-binfmt-conf.sh
  155. qemu-char.c
  156. qemu-char.h
  157. qemu-common.h
  158. qemu-config.c
  159. qemu-config.h
  160. qemu-doc.texi
  161. qemu-img-cmds.hx
  162. qemu-img.c
  163. qemu-img.texi
  164. qemu-io.c
  165. qemu-lock.h
  166. qemu-log.h
  167. qemu-malloc.c
  168. qemu-monitor.hx
  169. qemu-nbd.c
  170. qemu-nbd.texi
  171. qemu-option.c
  172. qemu-option.h
  173. qemu-options.hx
  174. qemu-queue.h
  175. qemu-sockets.c
  176. qemu-tech.texi
  177. qemu-thread.c
  178. qemu-thread.h
  179. qemu-timer.h
  180. qemu-tool.c
  181. qemu.sasl
  182. qemu_socket.h
  183. qint.c
  184. qint.h
  185. qlist.c
  186. qlist.h
  187. qobject.h
  188. qstring.c
  189. qstring.h
  190. readline.c
  191. readline.h
  192. README
  193. rules.mak
  194. s390-dis.c
  195. s390.ld
  196. savevm.c
  197. sdl.c
  198. sdl_keysym.h
  199. sdl_zoom.c
  200. sdl_zoom.h
  201. sdl_zoom_template.h
  202. sh4-dis.c
  203. softmmu-semi.h
  204. softmmu_defs.h
  205. softmmu_exec.h
  206. softmmu_header.h
  207. softmmu_template.h
  208. sparc-dis.c
  209. sparc.ld
  210. sparc64.ld
  211. sysemu.h
  212. tap-win32.c
  213. targphys.h
  214. tcg-runtime.c
  215. texi2pod.pl
  216. thunk.c
  217. thunk.h
  218. TODO
  219. translate-all.c
  220. uboot_image.h
  221. usb-bsd.c
  222. usb-linux.c
  223. usb-stub.c
  224. VERSION
  225. vgafont.h
  226. vl.c
  227. vnc-auth-sasl.c
  228. vnc-auth-sasl.h
  229. vnc-auth-vencrypt.c
  230. vnc-auth-vencrypt.h
  231. vnc-tls.c
  232. vnc-tls.h
  233. vnc.c
  234. vnc.h
  235. vnc_keysym.h
  236. vnchextile.h
  237. x86_64.ld
  238. x_keymap.c
  239. x_keymap.h