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292ee7be1c
freebsd-skq/sys/net
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Robert Watson 292ee7be1c Rename IFF_RUNNING to IFF_DRV_RUNNING, IFF_OACTIVE to IFF_DRV_OACTIVE, 
and move both flags from ifnet.if_flags to ifnet.if_drv_flags, making
and documenting the locking of these flags the responsibility of the
device driver, not the network stack.  The flags for these two fields
will be mutually exclusive so that they can be exposed to user space as
though they were stored in the same variable.

Provide #defines to provide the old names #ifndef _KERNEL, so that user
applications (such as ifconfig) can use the old flag names.  Using the
old names in a device driver will result in a compile error in order to
help device driver writers adopt the new model.

When exposing the interface flags to user space, via interface ioctls
or routing sockets, or the two fields together.  Since the driver flags
cannot currently be set for user space, no new logic is currently
required to handle this case.

Add some assertions that general purpose network stack routines, such
as if_setflags(), are not improperly used on driver-owned flags.

With this change, a large number of very minor network stack races are
closed, subject to correct device driver locking.  Most were likely
never triggered.

Driver sweep to follow; many thanks to pjd and bz for the line-by-line
review they gave this patch.

Reviewed by:	pjd, bz
MFC after:	7 days
2005-08-09 10:16:17 +00:00
..
bpf_compat.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
bpf_filter.c /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
bpf.c Merge the dev_clone and dev_clone_cred event handlers into a single 2005-08-08 19:55:32 +00:00
bpf.h additions from libpcap 0.9.1 release 2005-07-11 03:16:23 +00:00
bpfdesc.h Introduce new sysctl variable: net.bpf.stats. This sysctl variable can 2005-07-24 17:21:17 +00:00
bridge.c Check the alignment of the IP header before passing the packet up to the 2005-07-03 18:24:03 +00:00
bridge.h Stop embedding struct ifnet at the top of driver softcs. Instead the 2005-06-10 16:49:24 +00:00
bridgestp.c - Previously when broadcasting to N number of interfaces we would run pfil 2005-07-06 01:24:45 +00:00
bsd_comp.c Eliminate MAC entry point mac_create_mbuf_from_mbuf(), which is 2005-07-05 23:39:51 +00:00
ethernet.h add ETHERTYPE_PAE for EAPOL/802.1x 2004-10-05 19:28:52 +00:00
fddi.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
firewire.h Stop embedding struct ifnet at the top of driver softcs. Instead the 2005-06-10 16:49:24 +00:00
if_arc.h Stop embedding struct ifnet at the top of driver softcs. Instead the 2005-06-10 16:49:24 +00:00
if_arcsubr.c When allocating link layer ifnet address list entries in 2005-08-02 17:52:52 +00:00
if_arp.h Stop embedding struct ifnet at the top of driver softcs. Instead the 2005-06-10 16:49:24 +00:00
if_atm.h Stop embedding struct ifnet at the top of driver softcs. Instead the 2005-06-10 16:49:24 +00:00
if_atmsubr.c In preparation for fixing races in ARP (and probably in other 2005-08-09 08:39:56 +00:00
if_bridge.c Use m_copypacket() which is an optimization of the common case 2005-08-08 22:21:55 +00:00
if_bridgevar.h - Previously when broadcasting to N number of interfaces we would run pfil 2005-07-06 01:24:45 +00:00
if_clone.c o Move ifcr_count sanity check up and reject negative values before we 2005-02-24 13:14:41 +00:00
if_clone.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
if_disc.c Fix some long standing bugs in writing to the BPF device attached to 2005-06-26 18:11:11 +00:00
if_dl.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
if_ef.c Stop embedding struct ifnet at the top of driver softcs. Instead the 2005-06-10 16:49:24 +00:00
if_ethersubr.c When allocating link layer ifnet address list entries in 2005-08-02 17:52:52 +00:00
if_faith.c Fix some long standing bugs in writing to the BPF device attached to 2005-06-26 18:11:11 +00:00
if_fddisubr.c When allocating link layer ifnet address list entries in 2005-08-02 17:52:52 +00:00
if_fwsubr.c In preparation for fixing races in ARP (and probably in other 2005-08-09 08:39:56 +00:00
if_gif.c scope cleanup. with this change 2005-07-25 12:31:43 +00:00
if_gif.h Stop embedding struct ifnet at the top of driver softcs. Instead the 2005-06-10 16:49:24 +00:00
if_gre.c Add support for IPv6 over GRE [1]. PR kern/80340 includes the 2005-08-01 08:14:21 +00:00
if_gre.h Stop embedding struct ifnet at the top of driver softcs. Instead the 2005-06-10 16:49:24 +00:00
if_iso88025subr.c In preparation for fixing races in ARP (and probably in other 2005-08-09 08:39:56 +00:00
if_llc.h Add hooks into the networking layer to support if_bridge. This changes struct 2005-06-05 03:13:13 +00:00
if_loop.c Fix some long standing bugs in writing to the BPF device attached to 2005-06-26 18:11:11 +00:00
if_media.c /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
if_media.h Add CARP (Common Address Redundancy Protocol), which allows multiple 2005-02-22 13:04:05 +00:00
if_mib.c If we are going to 2005-05-06 02:50:00 +00:00
if_mib.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
if_ppp.c Eliminate MAC entry point mac_create_mbuf_from_mbuf(), which is 2005-07-05 23:39:51 +00:00
if_ppp.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
if_pppvar.h Stop embedding struct ifnet at the top of driver softcs. Instead the 2005-06-10 16:49:24 +00:00
if_sl.c Stop embedding struct ifnet at the top of driver softcs. Instead the 2005-06-10 16:49:24 +00:00
if_slvar.h Stop embedding struct ifnet at the top of driver softcs. Instead the 2005-06-10 16:49:24 +00:00
if_sppp.h Stop embedding struct ifnet at the top of driver softcs. Instead the 2005-06-10 16:49:24 +00:00
if_spppfr.c Stop embedding struct ifnet at the top of driver softcs. Instead the 2005-06-10 16:49:24 +00:00
if_spppsubr.c scope cleanup. with this change 2005-07-25 12:31:43 +00:00
if_stf.c Fix some long standing bugs in writing to the BPF device attached to 2005-06-26 18:11:11 +00:00
if_stf.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
if_tap.c Merge the dev_clone and dev_clone_cred event handlers into a single 2005-08-08 19:55:32 +00:00
if_tap.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
if_tapvar.h Stop embedding struct ifnet at the top of driver softcs. Instead the 2005-06-10 16:49:24 +00:00
if_tun.c Merge the dev_clone and dev_clone_cred event handlers into a single 2005-08-08 19:55:32 +00:00
if_tun.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
if_types.h Stop embedding struct ifnet at the top of driver softcs. Instead the 2005-06-10 16:49:24 +00:00
if_var.h Rename IFF_RUNNING to IFF_DRV_RUNNING, IFF_OACTIVE to IFF_DRV_OACTIVE, 2005-08-09 10:16:17 +00:00
if_vlan_var.h Allocate the M_VLANTAG m_pkthdr flag, and use it to indicate that 2005-02-18 22:31:19 +00:00
if_vlan.c Stop embedding struct ifnet at the top of driver softcs. Instead the 2005-06-10 16:49:24 +00:00
if.c Rename IFF_RUNNING to IFF_DRV_RUNNING, IFF_OACTIVE to IFF_DRV_OACTIVE, 2005-08-09 10:16:17 +00:00
if.h Rename IFF_RUNNING to IFF_DRV_RUNNING, IFF_OACTIVE to IFF_DRV_OACTIVE, 2005-08-09 10:16:17 +00:00
iso88025.h Add #defines for control fields and address bits. 2005-04-13 08:14:14 +00:00
net_osdep.h we are not OLD_BPF system. 2005-01-11 07:08:15 +00:00
netisr.c Correctly unregister a netisr by clearing the ni->ni_queue field to NULL as 2004-10-11 20:01:43 +00:00
netisr.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
pfil.c Fix semantics of ph_busy_count == -1 to pass instead of block. 2005-05-23 17:07:16 +00:00
pfil.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
pfkeyv2.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ppp_comp.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ppp_deflate.c /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ppp_defs.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ppp_tty.c Use m_uiotombuf() instead of own implementation. This is not just 2005-07-01 15:22:47 +00:00
radix.c /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
radix.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
raw_cb.c Acquire the raw_cb mutex around LIST_REMOVE() of a raw socket control 2005-01-24 22:56:09 +00:00
raw_cb.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
raw_usrreq.c /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
route.c In preparation for fixing races in ARP (and probably in other 2005-08-09 08:39:56 +00:00
route.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
rtsock.c Rename IFF_RUNNING to IFF_DRV_RUNNING, IFF_OACTIVE to IFF_DRV_OACTIVE, 2005-08-09 10:16:17 +00:00
slcompress.c Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
slcompress.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
slip.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
zlib.c /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
zlib.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00