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Poul-Henning Kamp b0b0334878 Device megapatch 2/6: 
This commit adds a couple of functions for pseudodrivers to use for
implementing cloning in a manner we will be able to lock down (shortly).

Basically what happens is that pseudo drivers get a way to ask for
"give me the dev_t with this unit number" or alternatively "give
me a dev_t with the lowest guaranteed free unit number" (there is
unfortunately a lot of non-POLA in the exact numeric value of this
number, just live with it for now)

Managing the unit number space this way removes the need to use
rman(9) to do so in the drivers this greatly simplifies the code in
the drivers because even using rman(9) they still needed to manage
their dev_t's anyway.

I have taken the if_tun, if_tap, snp and nmdm drivers through the
mill, partly because they (ab)used makedev(), but mostly because
together they represent three different problems for device-cloning:

if_tun and snp is the plain case: just give me a device.

if_tap has two kinds of devices, with a flag for device type.

nmdm has paired devices (ala pty) can you can clone either of them.
2004-02-21 20:29:52 +00:00
..
bpf_compat.h Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
bpf_filter.c Turn on BPF_ALIGN for all non-i386 platforms, instead of having an 2002-07-05 00:06:08 +00:00
bpf.c Device megapatch 1/6: 2004-02-21 19:42:58 +00:00
bpf.h o eliminate widespread on-stack mbuf use for bpf by introducing 2003-12-28 03:56:00 +00:00
bpfdesc.h Modify the MAC Framework so that instead of embedding a (struct label) 2003-11-12 03:14:31 +00:00
bridge.c Backout MT_TAG removal (i.e. bring back MT_TAGs) for now, as dummynet is 2004-02-18 00:04:52 +00:00
bridge.h network interface and link layer changes: 2002-11-15 00:00:15 +00:00
bsd_comp.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ethernet.h general cleanups mostly aimed at improving portability of drivers 2002-11-14 23:28:47 +00:00
fddi.h network interface and link layer changes: 2002-11-15 00:00:15 +00:00
if_arc.h - add support for IPX (tested with mount -t nwfs and mars_nwe), 2003-01-24 01:32:20 +00:00
if_arcsubr.c Introduce ip_fastforward and remove ip_flow. 2003-11-14 21:02:22 +00:00
if_arp.h - Use if_broadcastaddr from struct ifnet rather than relying on 2003-03-21 17:53:16 +00:00
if_atm.h Add a device type for virtual interfaces. 2004-01-26 12:13:11 +00:00
if_atmsubr.c Fix a warning when NATM is not defined. In this case s is not used. 2004-01-09 11:25:14 +00:00
if_disc.c o eliminate widespread on-stack mbuf use for bpf by introducing 2003-12-28 03:56:00 +00:00
if_dl.h
if_ef.c o eliminate widespread on-stack mbuf use for bpf by introducing 2003-12-28 03:56:00 +00:00
if_ethersubr.c Backout MT_TAG removal (i.e. bring back MT_TAGs) for now, as dummynet is 2004-02-18 00:04:52 +00:00
if_faith.c o eliminate widespread on-stack mbuf use for bpf by introducing 2003-12-28 03:56:00 +00:00
if_fddisubr.c Introduce ip_fastforward and remove ip_flow. 2003-11-14 21:02:22 +00:00
if_gif.c o eliminate widespread on-stack mbuf use for bpf by introducing 2003-12-28 03:56:00 +00:00
if_gif.h - after gif_set_tunnel(), psrc/pdst may be null. set IFF_RUNNING accordingly. 2002-10-16 19:49:37 +00:00
if_gre.c Remove NetBSD'isms (add FreeBSD'isms?), which makes gre(4) working again. 2004-01-30 09:03:01 +00:00
if_gre.h Add support for WCCPv2. It should be enablem manually using link2 2004-01-26 12:33:56 +00:00
if_iso88025subr.c Introduce ip_fastforward and remove ip_flow. 2003-11-14 21:02:22 +00:00
if_llc.h s/__attribute__((__packed__))/__packed/g 2002-09-23 06:25:08 +00:00
if_loop.c o eliminate widespread on-stack mbuf use for bpf by introducing 2003-12-28 03:56:00 +00:00
if_media.c Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
if_media.h Add an ATM sub-type for virtual interfaces. 2004-01-26 11:52:32 +00:00
if_mib.c Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
if_mib.h
if_ppp.c Don't leak softc's when destroying interfaces. 2004-01-21 18:05:38 +00:00
if_ppp.h
if_pppvar.h Make ppp(4) devices clonable and unloadable. 2002-08-09 15:30:48 +00:00
if_sl.c Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
if_slvar.h
if_sppp.h
if_spppsubr.c Remove #ifdef for ancient source FreeBSD compat. 2004-01-21 19:02:02 +00:00
if_stf.c o eliminate widespread on-stack mbuf use for bpf by introducing 2003-12-28 03:56:00 +00:00
if_stf.h
if_tap.c Device megapatch 2/6: 2004-02-21 20:29:52 +00:00
if_tap.h
if_tapvar.h Device megapatch 2/6: 2004-02-21 20:29:52 +00:00
if_tun.c Device megapatch 2/6: 2004-02-21 20:29:52 +00:00
if_tun.h
if_types.h use official # for IFT_STF 2003-10-26 14:29:04 +00:00
if_var.h Make the if_broadcastaddr const. All the drivers in the tree which 2003-12-07 05:49:21 +00:00
if_vlan_var.h A network interface driver can support IFCAP_VLAN_MTU only, 2004-01-18 19:29:04 +00:00
if_vlan.c backout the switch to use a zone for vlan tags; this requires 2004-01-03 03:33:39 +00:00
if.c Minor beautifications related to style(9) and code consistency. 2004-02-21 12:56:09 +00:00
if.h Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
iso88025.h Fix whitespace issues. 2003-03-15 23:55:33 +00:00
net_osdep.c Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
net_osdep.h - update comments to refrect recent BSDs. 2003-11-04 14:08:31 +00:00
netisr.c o add a flags parameter to netisr_register that is used to specify 2003-11-08 22:28:40 +00:00
netisr.h o add a flags parameter to netisr_register that is used to specify 2003-11-08 22:28:40 +00:00
pfil.c o update PFIL_HOOKS support to current API used by netbsd 2003-09-23 17:54:04 +00:00
pfil.h o update PFIL_HOOKS support to current API used by netbsd 2003-09-23 17:54:04 +00:00
pfkeyv2.h Initial import of RFC 2385 (TCP-MD5) digest support. 2004-02-11 04:26:04 +00:00
ppp_comp.h
ppp_deflate.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ppp_defs.h
ppp_tty.c Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
radix.c While cleaning out my tree, fix another strict alias warning that would 2003-09-22 23:24:18 +00:00
radix.h add R_Zalloc definition that returns pre-zero'd memory 2003-08-19 17:23:07 +00:00
raw_cb.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
raw_cb.h
raw_usrreq.c Introduce a MAC label reference in 'struct inpcb', which caches 2003-11-18 00:39:07 +00:00
route.c Remove extraneous unlock. This fixes a panic seen when manipulating static 2004-01-07 23:42:21 +00:00
route.h Introduce tcp_hostcache and remove the tcp specific metrics from 2003-11-20 20:07:39 +00:00
rtsock.c Introduce tcp_hostcache and remove the tcp specific metrics from 2003-11-20 20:07:39 +00:00
slcompress.c Don't use ovbcopy(); use void * instead of char *. 2003-04-04 12:11:46 +00:00
slcompress.h
slip.h
zlib.c chase more of the MIN/MAX mess. *sigh* 2003-02-02 13:52:25 +00:00
zlib.h