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freebsd-dev/sys/net
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Eygene Ryabinkin f74d5a7a20 if_lagg: allow to invoke SIOCSLAGGPORT multiple times in a row 
Currently, 'ifconfig laggX down' does not remove members from this
lagg(4) interface.  So, 'service netif stop laggX' followed by
'service netif start laggX' will choke, because "stop" will leave
interfaces attached to the laggX and ifconfig from the "start" will
refuse to add already-existing interfaces.

The real-world case is when I am bundling together my Ethernet and
WiFi interfaces and using multiple profiles for accessing network in
different places: system being booted up with one profile, but later
this profile being exchanged to another one, followed by 'service
netif restart' will not add WiFi interface back to the lagg: the
"stop" action from 'service netif restart' will shut down my main WiFi
interface, so wlan0 that exists in the lagg0 will be destroyed and
purged from lagg0; the "start" action will try to re-add both
interfaces, but since Ethernet one is already in lagg0, ifconfig will
refuse to add the wlan0 from WiFi interface.

Since adding the interface to the lagg(4) when it is already here
should be an idempotent action: we're really not changing anything,
so this fix doesn't change the semantics of interface addition.

Approved by: thompsa
Reviewed by: emaste
MFC after: 1 week
2012-05-28 12:13:04 +00:00
..
bpf_buffer.c Call bpf_jitter() before acquiring BPF global lock due to malloc() being used inside bpf_jitter. 2012-05-21 22:19:19 +00:00
bpf_buffer.h Call bpf_jitter() before acquiring BPF global lock due to malloc() being used inside bpf_jitter. 2012-05-21 22:19:19 +00:00
bpf_filter.c Clear the filter memory area before using it. Leaving it uninitialized may 2011-07-14 21:06:22 +00:00
bpf_jitter.c
bpf_jitter.h
bpf_zerocopy.c Fix old panic when BPF consumer attaches to destroying interface. 2012-05-21 22:17:29 +00:00
bpf_zerocopy.h - Fix trivial typo 2012-01-14 17:07:52 +00:00
bpf.c Make most BPF ioctls() SMP-safe. 2012-05-21 22:21:00 +00:00
bpf.h Fix old panic when BPF consumer attaches to destroying interface. 2012-05-21 22:17:29 +00:00
bpfdesc.h Fix old panic when BPF consumer attaches to destroying interface. 2012-05-21 22:17:29 +00:00
bridgestp.c Move the interface media check to a taskqueue, some interfaces (usb) sleep 2012-04-20 10:06:28 +00:00
bridgestp.h Move the interface media check to a taskqueue, some interfaces (usb) sleep 2012-04-20 10:06:28 +00:00
ethernet.h
fddi.h
firewire.h
flowtable.c Fix FLOWTABLE IPv6 handling in route.c missed in r205066. 2012-02-03 10:17:34 +00:00
flowtable.h allocate ipv6 flows from the ipv6 flow zone 2010-05-16 21:48:39 +00:00
ieee8023ad_lacp.c Turn LACP debugging from a compile time option to a sysctl, it is very handy to 2012-05-26 08:09:01 +00:00
ieee8023ad_lacp.h
if_arc.h
if_arcsubr.c Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs. 2011-11-07 06:44:47 +00:00
if_arp.h - Merge changes to the base system to support OFED. These include 2011-03-21 09:40:01 +00:00
if_atm.h
if_atmsubr.c Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs. 2011-11-07 06:44:47 +00:00
if_bridge.c Revert r234834 per luigi@ request. 2012-05-03 08:56:43 +00:00
if_bridgevar.h
if_clone.c - Use generic alloc_unr(9) allocator for if_clone, instead 2011-11-28 14:44:59 +00:00
if_clone.h - Use generic alloc_unr(9) allocator for if_clone, instead 2011-11-28 14:44:59 +00:00
if_dead.c
if_debug.c Add infrastructure to allow all frames/packets received on an interface 2011-07-03 12:22:02 +00:00
if_disc.c
if_dl.h Use the LLINDEX macro to access the link-level I/F index. This makes 2012-05-19 02:39:43 +00:00
if_edsc.c
if_ef.c Add new tunable 'net.link.ifqmaxlen' to set default send interface 2010-05-03 07:32:50 +00:00
if_enc.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
if_enc.h
if_epair.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
if_ethersubr.c Revert r234834 per luigi@ request. 2012-05-03 08:56:43 +00:00
if_faith.c Add multi-FIB IPv6 support to the core network stack supplementing 2012-02-03 13:08:44 +00:00
if_fddisubr.c Tag mbufs of all incoming frames or packets with the interface's FIB 2011-07-03 16:08:38 +00:00
if_fwsubr.c Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs. 2011-11-07 06:44:47 +00:00
if_gif.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
if_gif.h MFP4: @176978-176982, 176984, 176990-176994, 177441 2010-04-29 11:52:42 +00:00
if_gre.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
if_gre.h gre(4) was using a field in the softc to detect possible recursion. 2011-06-18 09:34:03 +00:00
if_iso88025subr.c Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs. 2011-11-07 06:44:47 +00:00
if_lagg.c if_lagg: allow to invoke SIOCSLAGGPORT multiple times in a row 2012-05-28 12:13:04 +00:00
if_lagg.h Add the ability to set which packet layers are used for the load balance hash 2012-03-06 22:58:13 +00:00
if_llatbl.c A flowtable entry can continue referencing an llentry indefinitely if the entry is repeatedly 2012-01-26 20:02:40 +00:00
if_llatbl.h When using flowtable llentrys can outlive the interface with which they're associated 2012-02-23 18:21:37 +00:00
if_llc.h
if_loop.c It turns out that too many drivers are not only parsing the L2/3/4 2012-05-28 09:30:13 +00:00
if_media.c Fix typos - remove duplicate "the". 2011-02-21 09:01:34 +00:00
if_media.h Add media types for 40G media that might be used with FreeBSD. 2012-04-10 13:59:35 +00:00
if_mib.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
if_mib.h
if_sppp.h
if_spppfr.c Remove a few bits of FreeBSD 2.x compatibility code. 2011-11-14 18:21:27 +00:00
if_spppsubr.c Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs. 2011-11-07 06:44:47 +00:00
if_stf.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
if_stf.h
if_tap.c In r191367 the need for if_free_type() was removed and a new member 2011-11-11 22:57:52 +00:00
if_tap.h
if_tapvar.h
if_tun.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
if_tun.h
if_types.h A major overhaul of the CARP implementation. The ip_carp.c was started 2011-12-16 12:16:56 +00:00
if_var.h Retire the IF_ADDR_LOCK() and IF_ADDR_UNLOCK() compat macros from HEAD. 2012-03-19 21:09:12 +00:00
if_vlan_var.h Clarify throughout the vlan(4) code the difference between a "tag" (the 2012-01-12 18:39:37 +00:00
if_vlan.c Clarify throughout the vlan(4) code the difference between a "tag" (the 2012-01-12 18:39:37 +00:00
if.c Add linkstate to bridge(4), set the link to up when at least one underlying 2012-04-20 09:55:50 +00:00
if.h It turns out that too many drivers are not only parsing the L2/3/4 2012-05-28 09:30:13 +00:00
iso88025.h
netisr_internal.h Rework netisr policy mechanism so that per-protocol dispatch policies can 2011-05-24 12:34:19 +00:00
netisr.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
netisr.h Rework netisr policy mechanism so that per-protocol dispatch policies can 2011-05-24 12:34:19 +00:00
netmap_user.h A bit of cleanup in the names of fields of netmap-related structures. 2012-04-13 16:03:07 +00:00
netmap.h A bit of cleanup in the names of fields of netmap-related structures. 2012-04-13 16:03:07 +00:00
pfil.c
pfil.h small portability fix to build on linux/windows 2010-07-15 14:41:06 +00:00
pfkeyv2.h
ppp_defs.h
radix_mpath.c When the RADIX_MPATH kernel option is enabled, the RADIX_MPATH code tries 2011-08-25 04:31:20 +00:00
radix_mpath.h
radix.c whitespace cleanup 2010-07-15 14:41:59 +00:00
radix.h Make KBI changes required for future MFCing of inpcb rtentry / llentry caching. 2011-09-20 20:27:26 +00:00
raw_cb.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
raw_cb.h Pass the fibnum where we need filtering of the message on the 2011-09-28 13:48:36 +00:00
raw_usrreq.c Pass the fibnum where we need filtering of the message on the 2011-09-28 13:48:36 +00:00
route.c Hide kernel option ROUTETABLES evaluations in the implementation 2012-03-18 11:23:40 +00:00
route.h Hide kernel option ROUTETABLES evaluations in the implementation 2012-03-18 11:23:40 +00:00
rtsock.c Do not require radix write lock to be held while dumping route table 2012-04-22 16:13:23 +00:00
slcompress.c
slcompress.h
vnet.c Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs. 2011-11-07 06:44:47 +00:00
vnet.h Mfp4 CH=177255: 2011-02-11 14:17:58 +00:00
zlib.c
zlib.h Change some headers such that lang/gcc* ports no longer patch them. 2012-02-14 12:50:20 +00:00
zutil.h Merge projects/enhanced_coredumps (r204346) into HEAD: 2010-03-02 06:58:58 +00:00