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Bjoern A. Zeeb 05fc416403 During if_vmove() we call if_detach_internal() which in turn calls the event 
handler notifying about interface departure and one of the consumers will
detach if_bpf.
There is no way for us to re-attach this easily as the DLT and hdrlen are
only given on interface creation.
Add a function to allow us to query the DLT and hdrlen from a current
BPF attachment and after if_attach_internal() manually re-add the if_bpf
attachment using these values.

Found by panics triggered by nd6 packets running past BPF_MTAP() with no
proper if_bpf pointer on the interface.

Also add a basic DDB show function to investigate the if_bpf attachment
of an interface.

Reviewed by:	gnn
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D5896
2016-04-11 10:00:38 +00:00
..
altq
Fix the spelling of eri's name.
2015-08-24 23:40:36 +00:00
bpf_buffer.c
Remove the sleep from the buffer allocation routine.
2015-07-31 20:25:54 +00:00
bpf_buffer.h
…
bpf_filter.c
…
bpf_jitter.c
…
bpf_jitter.h
…
bpf_zerocopy.c
…
bpf_zerocopy.h
…
bpf.c
During if_vmove() we call if_detach_internal() which in turn calls the event
2016-04-11 10:00:38 +00:00
bpf.h
During if_vmove() we call if_detach_internal() which in turn calls the event
2016-04-11 10:00:38 +00:00
bpfdesc.h
…
bridgestp.c
These files were getting sys/malloc.h and vm/uma.h with header pollution
2016-02-01 17:41:21 +00:00
bridgestp.h
…
ethernet.h
Add ethertype reserved for network testing
2016-03-28 18:25:54 +00:00
fddi.h
…
firewire.h
…
flowtable.c
Implement interface link header precomputation API.
2015-12-31 05:03:27 +00:00
flowtable.h
…
ieee8023ad_lacp.c
Add sysctl to control LACP strict compliance default
2015-11-06 15:33:27 +00:00
ieee8023ad_lacp.h
Make LAG LACP fast timeout tunable through IOCTL.
2015-08-12 20:21:04 +00:00
ieee_oui.h
…
if_arc.h
Replace 'struct route *' if_output() argument with 'struct nhop_info *'.
2014-11-09 16:33:04 +00:00
if_arcsubr.c
Finish r275196: do not dereference rtentry in if_output() routines.
2016-01-09 16:34:37 +00:00
if_arp.h
Remove struct arpcom. It is unused by most interface types, that allocate
2014-11-07 15:14:10 +00:00
if_atm.h
Replace 'struct route *' if_output() argument with 'struct nhop_info *'.
2014-11-09 16:33:04 +00:00
if_atmsubr.c
Replace 'struct route *' if_output() argument with 'struct nhop_info *'.
2014-11-09 16:33:04 +00:00
if_bridge.c
Fix panic when adding vtnet interfaces to a bridge
2015-06-13 19:39:21 +00:00
if_bridgevar.h
…
if_clone.c
Fix group membership of cloned interfaces when one is moved by
2015-03-02 20:00:03 +00:00
if_clone.h
Fix group membership of cloned interfaces when one is moved by
2015-03-02 20:00:03 +00:00
if_dead.c
Provide a dead version of if_get_counter.
2014-12-12 16:10:42 +00:00
if_debug.c
Catch up with some more fields. I needed the bpf one lately.
2016-03-31 18:53:13 +00:00
if_disc.c
Just checkpoint the WIP in order to be able to make the tree update
2016-01-22 15:00:01 +00:00
if_dl.h
Constantify lookup key in ifa_ifwith* functions.
2015-09-05 05:33:20 +00:00
if_edsc.c
Virtualize if_edsc(4).
2014-10-05 21:27:26 +00:00
if_enc.c
Just checkpoint the WIP in order to be able to make the tree update
2016-01-22 15:00:01 +00:00
if_enc.h
Overhaul if_enc(4) and make it loadable in run-time.
2015-11-25 07:31:59 +00:00
if_epair.c
These files were getting sys/malloc.h and vm/uma.h with header pollution
2016-02-01 17:41:21 +00:00
if_ethersubr.c
Finish r275196: do not dereference rtentry in if_output() routines.
2016-01-09 16:34:37 +00:00
if_fddisubr.c
Finish r275196: do not dereference rtentry in if_output() routines.
2016-01-09 16:34:37 +00:00
if_fwsubr.c
Finish r275196: do not dereference rtentry in if_output() routines.
2016-01-09 16:34:37 +00:00
if_gif.c
Cleanup unnecessary semicolons from the kernel.
2016-04-10 23:07:00 +00:00
if_gif.h
- Remove GIF_{SEND,ACCEPT}_REVETHIP.
2015-09-10 05:59:39 +00:00
if_gre.c
Cleanup unnecessary semicolons from the kernel.
2016-04-10 23:07:00 +00:00
if_gre.h
Extern declarations in C files loses compile-time checking that
2014-12-25 21:32:37 +00:00
if_iso88025subr.c
Finish r275196: do not dereference rtentry in if_output() routines.
2016-01-09 16:34:37 +00:00
if_lagg.c
Revert accidental submit of WIP as part of r297609
2016-04-06 04:58:20 +00:00
if_lagg.h
Revert accidental submit of WIP as part of r297609
2016-04-06 04:58:20 +00:00
if_llatbl.c
Implement interface link header precomputation API.
2015-12-31 05:03:27 +00:00
if_llatbl.h
Implement interface link header precomputation API.
2015-12-31 05:03:27 +00:00
if_llc.h
…
if_loop.c
Finish r275196: do not dereference rtentry in if_output() routines.
2016-01-09 16:34:37 +00:00
if_me.c
Add IFCAP_LINKSTATE support.
2015-10-03 09:15:23 +00:00
if_media.c
Make IFMEDIA_DEBUG a kernel option.
2015-04-21 10:35:23 +00:00
if_media.h
ifmedia changes:
2015-04-07 21:31:17 +00:00
if_mib.c
These files were getting sys/malloc.h and vm/uma.h with header pollution
2016-02-01 17:41:21 +00:00
if_mib.h
…
if_pflog.h
…
if_pfsync.h
…
if_sppp.h
…
if_spppfr.c
…
if_spppsubr.c
Convert in_ifaddr_lock and in6_ifaddr_lock to rmlock.
2015-07-29 08:12:05 +00:00
if_stf.c
Convert if_stf(4) to new routing api.
2015-12-16 09:18:20 +00:00
if_tap.c
if_tap: correct typo in sysctl description (Enably)
2015-10-21 19:56:16 +00:00
if_tap.h
…
if_tapvar.h
…
if_tun.c
* Address review (and add a bit myself).
2015-07-12 18:14:38 +00:00
if_tun.h
…
if_types.h
After r281643 an #ifdef IFT_FOO preprocessor directive returns false,
2015-05-02 20:37:40 +00:00
if_var.h
Implement interface link header precomputation API.
2015-12-31 05:03:27 +00:00
if_vlan_var.h
Move struct ether_vlan_header to ethernet.h, out of if_vlan_var.h,
2014-11-11 10:22:33 +00:00
if_vlan.c
Move iflladdr_event eventhandler invocation to if_setlladdr.
2015-11-14 13:34:03 +00:00
if_vxlan.c
Start process of removing the use of the deprecated "M_FLOWID" flag
2014-12-01 11:45:24 +00:00
if_vxlan.h
Add vxlan interface
2014-10-20 14:42:42 +00:00
if.c
During if_vmove() we call if_detach_internal() which in turn calls the event
2016-04-11 10:00:38 +00:00
if.h
…
ifq.h
buf_ring/drbr: Add buf_ring_peek_clear_sc and use it in drbr_peek
2016-02-29 03:54:51 +00:00
iso88025.h
Replace 'struct route *' if_output() argument with 'struct nhop_info *'.
2014-11-09 16:33:04 +00:00
netisr_internal.h
…
netisr.c
Remove an unneeded check.
2016-04-05 00:09:19 +00:00
netisr.h
…
netmap_user.h
Sync netmap sources with the version in our private tree.
2015-07-10 05:51:36 +00:00
netmap.h
Sync netmap sources with the version in our private tree.
2015-07-10 05:51:36 +00:00
paravirt.h
…
pfil.c
Just checkpoint the WIP in order to be able to make the tree update
2016-01-22 15:00:01 +00:00
pfil.h
…
pfkeyv2.h
Implement the sadb_x_policy_priority field as it is done in Linux:
2015-11-17 14:39:33 +00:00
pfvar.h
These files were getting sys/malloc.h and vm/uma.h with header pollution
2016-02-01 17:41:21 +00:00
ppp_defs.h
…
radix_mpath.c
MFP r287070,r287073: split radix implementation and route table structure.
2016-01-25 06:33:15 +00:00
radix_mpath.h
MFP r287070,r287073: split radix implementation and route table structure.
2016-01-25 06:33:15 +00:00
radix.c
MFP r287070,r287073: split radix implementation and route table structure.
2016-01-25 06:33:15 +00:00
radix.h
MFP r287070,r287073: split radix implementation and route table structure.
2016-01-25 06:33:15 +00:00
raw_cb.c
…
raw_cb.h
…
raw_usrreq.c
…
route_var.h
FreeBSD previously provided route caching for TCP (and UDP). Re-add
2016-03-24 07:54:56 +00:00
route.c
Fix compile errors after r297225:
2016-03-24 11:40:10 +00:00
route.h
Fix compile errors after r297225:
2016-03-24 11:40:10 +00:00
rss_config.c
Remove now unused (and #if 0'ed out) headers.
2015-08-29 04:33:31 +00:00
rss_config.h
Replace the printf()s with optional rate limited debugging for RSS.
2015-08-28 05:58:16 +00:00
rtsock.c
Remove some NULL checks for M_WAITOK allocations.
2016-03-29 13:56:59 +00:00
sff8436.h
Add SFF-8024 Extended Specification Compliance
2015-12-28 09:26:07 +00:00
sff8472.h
* Update SFF-8024 Identifier constants.
2015-05-16 13:11:35 +00:00
slcompress.c
…
slcompress.h
…
toeplitz.c
Refactor / restructure the RSS code into generic, IPv4 and IPv6 specific
2015-01-18 18:06:40 +00:00
toeplitz.h
Refactor / restructure the RSS code into generic, IPv4 and IPv6 specific
2015-01-18 18:06:40 +00:00
vnet.c
MfH @r295202
2016-02-03 11:49:51 +00:00
vnet.h
Provide TCPSTAT_DEC() and TCPSTAT_FETCH() macros.
2016-01-27 00:20:07 +00:00