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77dfcdc445
freebsd-nq/sys/net
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Robert Watson 77dfcdc445 Rework global locks for interface list and index management, correcting 
several critical bugs, including race conditions and lock order issues:

Replace the single rwlock, ifnet_lock, with two locks, an rwlock and an
sxlock.  Either can be held to stablize the lists and indexes, but both
are required to write.  This allows the list to be held stable in both
network interrupt contexts and sleepable user threads across sleeping
memory allocations or device driver interactions.  As before, writes to
the interface list must occur from sleepable contexts.

Reviewed by:	bz, julian
MFC after:	3 days
2009-08-23 20:40:19 +00:00
..
bpf_buffer.c Always embed pointer to BPF JIT function in BPF descriptor 2009-08-12 17:28:53 +00:00
bpf_buffer.h Introduce support for zero-copy BPF buffering, which reduces the 2008-03-24 13:49:17 +00:00
bpf_filter.c Fix the last missing parentheses for a return statement in bpf_filter.c. 2008-08-29 20:00:55 +00:00
bpf_jitter.c Initialize scratch memory for JIT-compiled filter when it is allocated. 2008-08-28 16:40:51 +00:00
bpf_jitter.h Fix a typo in copyrights. 2008-08-25 20:43:13 +00:00
bpf_zerocopy.c Always embed pointer to BPF JIT function in BPF descriptor 2009-08-12 17:28:53 +00:00
bpf_zerocopy.h Make sure we are clearing the ZBUF_FLAG_IMMUTABLE any time a free buffer 2008-07-05 20:11:28 +00:00
bpf.c Always embed pointer to BPF JIT function in BPF descriptor 2009-08-12 17:28:53 +00:00
bpf.h Sync DLTs with latest libpcap version. 2009-04-02 13:02:12 +00:00
bpfdesc.h Always embed pointer to BPF JIT function in BPF descriptor 2009-08-12 17:28:53 +00:00
bridgestp.c Rework global locks for interface list and index management, correcting 2009-08-23 20:40:19 +00:00
bridgestp.h Fix spelling. 2007-12-09 20:47:12 +00:00
ethernet.h Change if_output to take a struct route as its fourth argument in order 2009-04-16 20:30:28 +00:00
fddi.h Switch cmd argument to u_long. This matches what if_ethersubr.c does and 2009-06-21 10:29:31 +00:00
firewire.h Switch cmd argument to u_long. This matches what if_ethersubr.c does and 2009-06-21 10:29:31 +00:00
flowtable.c Don't allow access to the internals until it has all been set up. 2009-08-21 09:22:32 +00:00
flowtable.h - change the interface to flowtable_lookup so that we don't rely on 2009-08-18 20:28:58 +00:00
ieee8023ad_lacp.c Use the flowid if its available for selecting the tx port. 2009-04-30 14:25:44 +00:00
ieee8023ad_lacp.h Remove extra semicolons. 2008-03-17 01:26:44 +00:00
if_arc.h Switch cmd argument to u_long. This matches what if_ethersubr.c does and 2009-06-21 10:29:31 +00:00
if_arcsubr.c Switch cmd argument to u_long. This matches what if_ethersubr.c does and 2009-06-21 10:29:31 +00:00
if_arp.h
if_atm.h Change if_output to take a struct route as its fourth argument in order 2009-04-16 20:30:28 +00:00
if_atmsubr.c Move "options MAC" from opt_mac.h to opt_global.h, as it's now in GENERIC 2009-06-05 14:55:22 +00:00
if_bridge.c Many network stack subsystems use a single global data structure to hold 2009-08-02 19:43:32 +00:00
if_bridgevar.h Add an option to limit the number of source MACs that can be behind a bridge 2007-11-04 08:32:27 +00:00
if_clone.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_clone.h Introduce and use a sysinit-based initialization scheme for virtual 2009-07-23 20:46:49 +00:00
if_dead.c During if_detach(), invoke if_dead() to set the ifnet's function 2009-04-23 11:51:53 +00:00
if_disc.c Change if_output to take a struct route as its fourth argument in order 2009-04-16 20:30:28 +00:00
if_dl.h
if_edsc.c
if_ef.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_enc.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_enc.h Increase statistic counters for enc0 interface when enabled 2008-08-12 09:05:01 +00:00
if_epair.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_ethersubr.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_faith.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_fddisubr.c Break at_ifawithnet() into two variants: 2009-06-24 10:32:44 +00:00
if_fwsubr.c Switch cmd argument to u_long. This matches what if_ethersubr.c does and 2009-06-21 10:29:31 +00:00
if_gif.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_gif.h Remove unused VNET_SET() and related macros; only VNET_GET() is 2009-07-16 21:13:04 +00:00
if_gre.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_gre.h Add support for the optional key in the GRE header. 2008-06-20 17:26:34 +00:00
if_iso88025subr.c Switch cmd argument to u_long. This matches what if_ethersubr.c does and 2009-06-21 10:29:31 +00:00
if_lagg.c Use the flowid if its available for selecting the tx port. 2009-04-30 14:25:44 +00:00
if_lagg.h Change if_output to take a struct route as its fourth argument in order 2009-04-16 20:30:28 +00:00
if_llatbl.c Rework global locks for interface list and index management, correcting 2009-08-23 20:40:19 +00:00
if_llatbl.h When an interface address is removed and the last prefix 2009-05-20 21:07:15 +00:00
if_llc.h
if_loop.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_media.c
if_media.h Implementation of the upcoming Wireless Mesh standard, 802.11s, on the 2009-07-11 15:02:45 +00:00
if_mib.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_mib.h
if_sppp.h
if_spppfr.c
if_spppsubr.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_stf.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_stf.h
if_tap.c Change the type of uio_resid member of struct uio from int to ssize_t. 2009-06-25 18:46:30 +00:00
if_tap.h Add new TAPGIFNAME tap(4) character device ioctl. This is a 2008-09-08 22:43:55 +00:00
if_tapvar.h
if_tun.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_tun.h
if_types.h
if_var.h Rework global locks for interface list and index management, correcting 2009-08-23 20:40:19 +00:00
if_vlan_var.h
if_vlan.c Rework global locks for interface list and index management, correcting 2009-08-23 20:40:19 +00:00
if.c Rework global locks for interface list and index management, correcting 2009-08-23 20:40:19 +00:00
if.h Manage vnets via the jail system. If a jail is given the boolean 2009-06-15 18:59:29 +00:00
iso88025.h Switch cmd argument to u_long. This matches what if_ethersubr.c does and 2009-06-21 10:29:31 +00:00
netisr.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
netisr.h Update epair(4) to the new netisr implementation and polish 2009-07-26 12:20:07 +00:00
pfil.c A few locking fixes and cleanups to pfil hook registration, 2008-12-16 17:03:22 +00:00
pfil.h Make the rmlock(9) interface a bit more like the rwlock(9) interface: 2009-05-29 10:52:37 +00:00
pfkeyv2.h Added support for NAT-Traversal (RFC 3948) in IPsec stack. 2009-06-12 15:44:35 +00:00
ppp_defs.h
radix_mpath.c Extend route command: 2009-04-14 23:05:36 +00:00
radix_mpath.h When RADIX_MPATH is enabled, the route selection is not rotating 2008-05-30 09:34:35 +00:00
radix.c remove assertion checks for now - ipfw uses its own lock for protecting its radix tree instance 2008-12-16 11:01:36 +00:00
radix.h - convert radix node head lock from mutex to rwlock 2008-12-07 21:15:43 +00:00
raw_cb.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
raw_cb.h Remove unused VNET_SET() and related macros; only VNET_GET() is 2009-07-16 21:13:04 +00:00
raw_usrreq.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
route.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
route.h Collect all VIMAGE_GLOBALS variables in one place. 2009-06-22 15:07:12 +00:00
rtsock.c Put multiple instructions into a block when iterating; unbreaks 2009-08-13 09:29:52 +00:00
slcompress.c
slcompress.h
vnet.c Update DDB show vnet command to print all used and available information. 2009-08-12 12:00:21 +00:00
vnet.h Make VNET_DEBUG a standalone compile-time option, i.e. decouple it from 2009-08-14 22:41:39 +00:00
zlib.c
zlib.h