Commit Graph

75 Commits

Author SHA1 Message Date
simonb dbafd8c6a6 Make the 'ifnet' variable an extern and declare it in if.c. 2002-03-17 10:21:42 +00:00
thorpej d679590033 Split the pre-computed ifnet checksum flags into Tx and Rx directions.
Add capabilities bits that indicate an interface can only perform
in-bound TCPv4 or UDPv4 checksums.  There is at least one Gig-E chip
for which this is true (Level One LXT-1001), and this is also the
case for the Intel i82559 10/100 Ethernet chips.
2001-09-17 17:26:59 +00:00
itojun 015f17a7cb fix comment on ifi_lastchange, for 1.4 if_data 2001-06-14 06:37:34 +00:00
itojun a90f815dc4 update comment on if_lastchange 2001-06-14 05:50:02 +00:00
wiz 40ac848024 Fix various misspellings of compatible/compatibility. 2001-06-11 01:50:48 +00:00
thorpej ca4d373730 Implement support for IP/TCP/UDP checksum offloading provided by
network interfaces.  This works by pre-computing the pseudo-header
checksum and caching it, delaying the actual checksum to ip_output()
if the hardware cannot perform the sum for us.  In-bound checksums
can either be fully-checked by hardware, or summed up for final
verification by software.  This method was modeled after how this
is done in FreeBSD, although the code is significantly different in
most places.

We don't delay checksums for IPv6/TCP, but we do take advantage of the
cached pseudo-header checksum.

Note: hardware-assisted checksumming defaults to "off".  It is
enabled with ifconfig(8).  See the manual page for details.

Implement hardware-assisted checksumming on the DP83820 Gigabit Ethernet,
3c90xB/3c90xC 10/100 Ethernet, and Alteon Tigon/Tigon2 Gigabit Ethernet.
2001-06-02 16:17:06 +00:00
mrg 67afbd6270 use _KERNEL_OPT 2001-05-30 11:57:16 +00:00
enami fe247cae7a fix possible typo in comment. 2001-04-10 22:58:55 +00:00
thorpej 4cbf0044c4 Add a PFIL_HOOKS filtering point to every network interface. 2001-04-10 21:45:39 +00:00
thorpej 98c9d8b5c6 ether_*() functions belong in if_ether.h, not if.h. 2001-04-07 04:24:31 +00:00
itojun 50f4458f06 move forward decl of rt_addrinfo upwards. 2001-01-17 15:07:07 +00:00
itojun df9784d749 pull post-4.4BSD change to sys/net/route.c from BSD/OS 4.2 (UCB copyrighted).
have sys/net/route.c:rtrequest1(), which takes rt_addrinfo * as the argument.
pass rt_addrinfo all the way down to rtrequest, and ifa->ifa_rtrequest.
3rd arg of ifa->ifa_rtrequest is now rt_addrinfo * instead of sockaddr *
(almost noone is using it anyways).

benefit: the follwoing command now works.  previously we need two route(8)
invocations, "add" then "change".
# route add -inet6 default ::1 -ifp gif0

remove unsafe typecast in rtrequest(), from rtentry * to sockaddr *.  it was
introduced by 4.3BSD-reno and never corrected.

XXX is eon_rtrequest() change correct regarding to 3rd arg?
eon_rtrequest() and rtrequest() were incorrect since 4.3BSD-reno,
so i do not have correct answer in the source code.
someone with more clue about netiso-over-ip, please help.
2001-01-17 04:05:41 +00:00
thorpej fc5dafc79b Fix a rather annoying problem where the sockaddr_dl which holds
the link level name for the interface (ifp->if_sadl) is allocated
before ifp->if_addrlen is initialized, which could lead to allocating
too little space for the link level address.

Do this by splitting allocation of the link level name out of
if_attach() and into if_alloc_sadl(), which is normally called
by functions like ether_ifattach().  Network interfaces which
don't have a link-specific attach routine must call if_alloc_sadl()
themselves (example: gif).

Link level names are freed by if_free_sadl(), which can be called
from e.g. ether_ifdetach().  Drivers never need call if_free_sadl()
themselves as if_detach() will do it if it is not already done.

While here, add the ability to pass an AF_LINK address to
SIOCSIFADDR in ether_ioctl() (this is what caused me to notice
the problem that the above fixes).
2001-01-17 00:30:49 +00:00
thorpej f9fd00d8e7 Fix a silly bug in the ALTQ version of IFQ_DEQUEUE(). 2000-12-23 19:00:18 +00:00
thorpej 0b541534c5 Add an "ifr_dlt" alias for the union in struct ifreq. 2000-12-18 21:03:34 +00:00
thorpej 192e2774b3 Always pull in DLT_* constants. 2000-12-18 20:58:41 +00:00
thorpej 00d64bedbc Add a if_dlt member, used so that userland can query the DLT_* of an
interface without having to first attach it to a bpfdesc.
2000-12-18 19:25:57 +00:00
thorpej 2663dfcf85 Commit to the ALTQ glue. 2000-12-18 18:54:47 +00:00
thorpej fb2688c12f Fix braino in IF_PURGE(). 2000-12-14 00:19:42 +00:00
thorpej dce7e1a85b Oops, forgot IFQ_POLL() in the ALTQ case. 2000-12-14 00:07:35 +00:00
thorpej df303090c2 First step at integrating ALTQ -- IFQ_*() glue macros that select
old-style queueing or ALTQ based on a compile time option.
2000-12-13 22:05:12 +00:00
thorpej 7e2259325b Change the if_reset vector to if_init, and add an if_stop. if_stop
also takes an argument indicating whether or not the interface should
also be disabled (i.e. power removed, resources freed, etc.)
2000-10-11 16:52:34 +00:00
thorpej 9c881e00cb Add a SIOCGIFCLONERS ioctl, which fetches a list of network
interface cloners from the kernel.
2000-07-20 18:40:26 +00:00
thorpej 920e0d4a44 Don't allow IFF_PROMISC to be changed directly by userspace. It
interferes with the reference counting done by ifpromisc(), and is
essentially impossible to get the semantics correct if we allow this
flag to be directly toggled.

No programs should really be affected by this; IFF_PROMISC is basically
useless without bpf, anyway, and bpf still provides a way to set
promiscuous mode on an interface (which uses ifpromisc()).
2000-07-04 19:09:17 +00:00
thorpej 1e58f22342 Add the notion of "cloning" of network pseudo-interface (e.g. `gif').
This allows them to be created and destroyed on the fly via ifconfig(8),
rather than specifying the count in the kernel configuration file.
2000-07-02 00:20:48 +00:00
itojun 3a44ebc43c backout previous (packed attribute to struct ifreq) 2000-05-15 16:59:37 +00:00
itojun 3df6dbc4c7 add packed attribute to struct ifreq. this should avoid unaligned access
while parsing SIOCGIFCONF, on alignment-picky archs.
2000-05-15 16:45:50 +00:00
simonb 25b33c13f4 Extern the declarations of ifindex2ifnet and if_index. 2000-03-29 03:27:59 +00:00
itojun c23a76689e remove if_withname, which was merged in by mistake during KAME merge. 2000-03-22 11:34:15 +00:00
thorpej 0f5c059d1f - Add link status to if_data, so that routing daemons and other interested
parties can easily know the state of a link.
- Define an interface announcement message for the routing socket so that
  routing daemons and other interested parties know when an interface
  is attached/detached.
2000-03-06 20:49:00 +00:00
kleink 5d617390f9 Make pre-1.5 compatibility structures being defined conditional on _KERNEL
as well.
2000-03-06 18:55:10 +00:00
thorpej d844a3ac41 First-draft if_detach() implementation, originally from Bill Studnemund,
although this version has been changed somewhat:
- reference counting on ifaddrs isn't as complete as Bill's original
  work was.  This is hard to get right, and we should attack one
  protocol at a time.
- This doesn't do reference counting or dynamic allocation of ifnets yet.
- This version introduces a new PRU -- PRU_PURGEADDR, which is used to
  purge an ifaddr from a protocol.  The old method Bill used didn't work
  on all protocols, and it only worked on some because it was Very Lucky.

This mostly works ... i.e. works for my USB Ethernet, except for a dangling
ifaddr reference left by the IPv6 code; have not yet tracked this down.
2000-02-01 22:52:04 +00:00
itojun ea861f0183 sync IPv6 part with latest KAME tree. IPsec part is left unmodified
due to massive changes in KAME side.
- IPv6 output goes through nd6_output
- faith can capture IPv4 packets as well - you can run IPv4-to-IPv6 translator
  using heavily modified DNS servers
- per-interface statistics (required for IPv6 MIB)
- interface autoconfig is revisited
- udp input handling has a big change for mapped address support.
- introduce in4_cksum() for non-overwriting checksumming
- introduce m_pulldown()
- neighbor discovery cleanups/improvements
- netinet/in.h strictly conforms to RFC2553 (no extra defs visible to userland)
- IFA_STATS is fixed a bit (not tested)
- and more more more.

TODO:
- cleanup os-independency #ifdef
- avoid rcvif dual use (for IPsec) to help ifdetach

(sorry for jumbo commit, I can't separate this any more...)
1999-12-13 15:17:17 +00:00
bouyer f86517a031 Update protocoles and interfaces stats counters to 64bit.
RTM_IFINFO is now 0xf, 0xe is RTM_OIFINFO which returns the old (if_msghdr14)
struct with 32bit counters (binary compat, conditioned on COMPAT_14).
Same for sysctl: node 3 is renamed NET_RT_OIFLIST, NET_RT_IFLIST is now node 4.
Change rt_msg1() to add an mbuf to the mbuf chain instead of just panic()
when the message is larger than MHLEN.
1999-11-19 10:41:41 +00:00
wrstuden 2f8d442b6a Up the size of the ifa_flags and ifa_refcnt from shorts to ints. Now will
deal correctly with more than 32767 routes out an interface.

Should close PR 7148 regarding problems when ifs_refcnt overflows.

Bump kernel version from 1.4L to 1.4M.
1999-10-26 22:32:44 +00:00
thorpej 6f6f873945 const poison ifunit(). 1999-09-29 22:42:02 +00:00
matt 590b2a675e Add a ifru_value (unsigned int) as a generic value. 1999-09-21 22:16:24 +00:00
kleink 92bd36d9a9 Add namespace protection, using XNS5.2 D2.0 as a reference (which effectively
boils down to not making anything but the if_nameindex(3) interfaces available
to _XOPEN_SOURCE).
1999-07-03 13:52:29 +00:00
itojun 118d2b1d4f IPv6 kernel code, based on KAME/NetBSD 1.4, SNAP kit 19990628.
(Sorry for a big commit, I can't separate this into several pieces...)
Pls check sys/netinet6/TODO and sys/netinet6/IMPLEMENTATION for details.

- sys/kern: do not assume single mbuf, accept chained mbuf on passing
  data from userland to kernel (or other way round).
- "midway" ATM card: ATM PVC pseudo device support, like those done in ALTQ
  package (ftp://ftp.csl.sony.co.jp/pub/kjc/).
- sys/netinet/tcp*: IPv4/v6 dual stack tcp support.
- sys/netinet/{ip6,icmp6}.h, sys/net/pfkeyv2.h: IETF document assumes those
  file to be there so we patch it up.
- sys/netinet: IPsec additions are here and there.
- sys/netinet6/*: most of IPv6 code sits here.
- sys/netkey: IPsec key management code
- dev/pci/pcidevs: regen

In my understanding no code here is subject to export control so it
should be safe.
1999-07-01 08:12:45 +00:00
thorpej f98d358a1f Rework layer 2 protocol input routines. Instead of calling e.g. ether_input()
directly, call the function pointer (*if_input)(ifp, m).  The input routine
expects the packet header to be at the head of the packet, and will adjust
as necessary.  Privatize the layer 2 input and output routines, allowing
*_ifattach() to set them up as appropriate.
1999-05-18 23:52:51 +00:00
aidan da1b3a7abf Added per-addr input/output statistics. Currently just support netatalk
and netinet, currently only tested under netinet.

Disabled by default, enabled by compiling the kernel with option
IFA_STATS.  Enabling this feature seems to make the ip_output function
take 13% longer than before, which should be OK for people that need
this feature.
1999-03-27 01:24:49 +00:00
thorpej 5fa25527ac Const poison ether_ifattach(). 1999-03-10 21:05:08 +00:00
thorpej f48012dee8 Const poison ether_sprintf(). 1999-03-10 03:28:50 +00:00
matt b2c24dbcbe Add an if_drain to the ifnet structure (call when the system is low
on mbufs).  Add code to m_reclaim to call if_drain in each ifnet
that has one set.  Remove register from declarations.
1998-05-22 17:47:21 +00:00
kml e72782a137 Driver for Essential Communications' RoadRunner HIPPI (800 Mb/sec network)
card.  With some modification, this could probably also work for their
Gigabit Ethernet card based on the same chipset...
1998-05-14 00:04:57 +00:00
fvdl e5bc90f40c Merge with Lite2 + local changes 1998-03-01 02:20:01 +00:00
is fabb33431c Reimplement a test for broadcast addresses advertized, which was left out
when rewriting the ARP system.
1997-10-02 19:41:56 +00:00
chuck cf0f247359 prevent multiple inclusions 1997-04-08 21:29:26 +00:00
thorpej 1b1c7ef868 BSD/OS-style network interface media selection, implemented by
Jonathan Stone and myself.  Many thanks to Matt Thomas for providing
the information necessary to implement this interface, and for helping
to shake out the bugs.
1997-03-17 02:55:12 +00:00
is 07b064e02e New ARP system, supports IPv4 over any hardware link.
Some of the stuff (e.g., rarpd, bootpd, dhcpd etc., libsa) still will
only support Ethernet. Tcpdump itself should be ok, but libpcap needs
lot of work.

For the detailed change history, look at the commit log entries for
the is-newarp branch.
1997-03-15 18:09:08 +00:00