Mark Johnston cd698c5179 netgraph: Fix ng_ether's shutdown handing ... When tearing down a VNET, netgraph sends shutdown messages to all of the nodes before detaching interfaces (SI_SUB_NETGRAPH comes before SI_SUB_INIT_IF in teardown order). ng_ether nodes handle this by destroying themselves without detaching from the parent ifnet. Then, when ifnets go away they detach their ng_ether nodes again, triggering a use-after-free. Handle this by modifying ng_ether_shutdown() to detach from the ifnet. If the shutdown was triggered by an ifnet being destroyed, we will clear priv->ifp in the ng_ether detach callback, so priv->ifp may be NULL. Also get rid of the printf in vnet_netgraph_uninit(). It can be triggered trivially by ng_ether since ng_ether_shutdown() persists the node unless NG_REALLY_DIE is set. PR: 233622 Reviewed by: afedorov, kp, Lutz Donnerhacke MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D27662		2020-12-23 00:12:16 -05:00
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atm	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
bluetooth	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
netflow	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
netgraph.h	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_async.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_async.h
ng_atmllc.c
ng_atmllc.h
ng_base.c	netgraph: Fix ng_ether's shutdown handing	2020-12-23 00:12:16 -05:00
ng_bpf.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_bpf.h
ng_bridge.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_bridge.h	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_car.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_car.h
ng_checksum.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_checksum.h
ng_cisco.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_cisco.h	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_deflate.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_deflate.h	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_device.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_device.h
ng_echo.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_echo.h
ng_eiface.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_eiface.h
ng_etf.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_etf.h
ng_ether.c	netgraph: Fix ng_ether's shutdown handing	2020-12-23 00:12:16 -05:00
ng_ether.h
ng_ether_echo.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_ether_echo.h
ng_frame_relay.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_frame_relay.h
ng_gif.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_gif.h
ng_gif_demux.c
ng_gif_demux.h
ng_hole.c
ng_hole.h
ng_hub.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_hub.h
ng_iface.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_iface.h	ng_iface(4): Remove unsupported protocols.	2020-07-31 14:08:54 +00:00
ng_ip_input.c
ng_ip_input.h
ng_ipfw.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_ipfw.h
ng_ksocket.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_ksocket.h
ng_l2tp.c	ng_l2tp: Fix callout synchronization in the rexmit timeout handler	2020-09-25 18:55:50 +00:00
ng_l2tp.h
ng_lmi.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_lmi.h
ng_macfilter.c	netgraph: macfilter: small fixes	2020-12-09 15:28:56 +00:00
ng_macfilter.h	New Netgraph module ng_macfilter:	2020-12-08 15:09:42 +00:00
ng_message.h	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_mppc.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_mppc.h	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_nat.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_nat.h	ng_nat: unbreak ABI	2020-11-10 02:26:44 +00:00
ng_one2many.c
ng_one2many.h	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_parse.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_parse.h	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_patch.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_patch.h
ng_pipe.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_pipe.h	Increase BER to PER lookup table size in an attempt to mitigate panics	2020-08-18 22:46:46 +00:00
ng_ppp.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_ppp.h
ng_pppoe.c	ng_ether: Enter NET_EPOCH where required	2020-09-02 11:49:22 +00:00
ng_pppoe.h	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_pptpgre.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_pptpgre.h
ng_pred1.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_pred1.h	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_rfc1490.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_rfc1490.h
ng_sample.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_sample.h
ng_socket.c	[ng_socket] Don't take the SOCKBUF_LOCK() twice in the RX data path.	2020-12-17 18:15:07 +00:00
ng_socket.h	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_socketvar.h
ng_source.c
ng_source.h
ng_split.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_split.h	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_sppp.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_sppp.h
ng_tag.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_tag.h
ng_tcpmss.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_tcpmss.h	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_tee.c
ng_tee.h
ng_tty.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_tty.h
ng_UI.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_UI.h	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_vjc.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_vjc.h
ng_vlan.c	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
ng_vlan.h	net: clean up empty lines in .c and .h files	2020-09-01 21:19:14 +00:00
NOTES