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7538f97807
freebsd-skq/sys/net
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brooks 7538f97807 When we started calling if_findindex() from if_alloc() with an empty 
struct ifnet most of if_findindex() become a complex no-op.  Remove it
and replace it with a corrected version of the four line for loop it
devolved to plus some error handling.  This should probably be replaced
with subr_unit at some point.

Switch from checking ifaddr_byindex to ifnet_byindex when looking for
empty indexes.  Since we're doing this from if_alloc/if_free, we can
only be sure that ifnet_byindex will be correct.  This fixes panics when
loading the ef(4) module.  The panics were caused by the fact that
if_alloc was called four time before if_attach was called and thus
ifaddr_byindex was not set and the same unit was allocated again.  This
in turn caused the first if_attach to fail because the ifp was not the
one in ifnet_byindex(ifp->if_index).

Reported by:	"Wojciech A. Koszek" <dunstan at freebsd dot czest dot pl>
PR:		kern/84987
MFC After:	1 day
2005-08-18 18:36:40 +00:00
..
bpf_compat.h
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 Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and 2005-08-09 10:20:02 +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 Ensure that we are holding the lock when initialising the bridge interface. We 2005-08-15 02:54:29 +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 Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and 2005-08-09 10:20:02 +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 Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and 2005-08-09 10:20:02 +00:00
if_atmsubr.c o Make rt_check() function more strict: 2005-08-11 08:14:53 +00:00
if_bridge.c Ensure that we are holding the lock when initialising the bridge interface. We 2005-08-15 02:50:13 +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 Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and 2005-08-09 10:20:02 +00:00
if_ethersubr.c Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and 2005-08-09 10:20:02 +00:00
if_faith.c Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and 2005-08-09 10:20:02 +00:00
if_fddisubr.c Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and 2005-08-09 10:20:02 +00:00
if_fwsubr.c o Make rt_check() function more strict: 2005-08-11 08:14:53 +00:00
if_gif.c Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and 2005-08-09 10:20:02 +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 Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and 2005-08-09 10:20:02 +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 o Make rt_check() function more strict: 2005-08-11 08:14:53 +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 Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and 2005-08-09 10:20:02 +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 Axe ppp_for_tty(). Use tty->t_lsc pointer to store sc. This 2005-08-12 08:27:15 +00:00
if_ppp.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
if_pppvar.h Axe ppp_for_tty(). Use tty->t_lsc pointer to store sc. This 2005-08-12 08:27:15 +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 Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and 2005-08-09 10:20:02 +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 Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and 2005-08-09 10:20:02 +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 Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and 2005-08-09 10:20:02 +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 Vlan interfaces change their type after ether_ifattach() so we needs to 2005-08-15 20:27:34 +00:00
if.c When we started calling if_findindex() from if_alloc() with an empty 2005-08-18 18:36:40 +00:00
if.h For each interface flag, indicate whether or not it is owned by the 2005-08-09 12:56:20 +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 Axe ppp_for_tty(). Use tty->t_lsc pointer to store sc. This 2005-08-12 08:27:15 +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 o Make rt_check() function more strict: 2005-08-11 08:14:53 +00:00
route.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
rtsock.c o To prevent a race between RTM_DELETE message and 2005-08-11 08:26:31 +00:00
slcompress.c
slcompress.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
slip.h
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