Commit Graph

40 Commits

Author SHA1 Message Date
Ed Schouten
d745c852be Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.
This means that their use is restricted to a single C file.
2011-11-07 06:44:47 +00:00
Bjoern A. Zeeb
a34c6aeb85 Tag mbufs of all incoming frames or packets with the interface's FIB
setting (either default or if supported as set by SIOCSIFFIB, e.g.
from ifconfig).

Submitted by:	Alexander V. Chernikov (melifaro ipfw.ru)
Reviewed by:	julian
MFC after:	2 weeks
2011-07-03 16:08:38 +00:00
Roman Divacky
e40bae9a45 Switch cmd argument to u_long. This matches what if_ethersubr.c does and
allows the code to compile cleanly on amd64 with clang.

Reviewed by:	rwatson
Approved by:	ed (mentor)
2009-06-21 10:29:31 +00:00
Bjoern A. Zeeb
74900cdf7f The llentry *lle is only used in cases of INET or INET6.
Put the variable declaration under proper #ifdefs.

In case variables are only needed for one of the two AFs
more them into proper scope.
2009-06-10 09:07:05 +00:00
Kip Macy
1bc27a1ce3 remove call to IFQ_HANDOFF is it called by if_transmit in the default case
and doing so allows the ifnet driver to define its own queueing mechanism
2009-04-27 22:44:26 +00:00
Kip Macy
279aa3d419 Change if_output to take a struct route as its fourth argument in order
to allow passing a cached struct llentry * down to L2

Reviewed by:	rwatson
2009-04-16 20:30:28 +00:00
Qing Li
9928dafbb8 Remove the rt argument from nd6_storelladdr() because
rt is no longer accessed.
2008-12-17 10:27:34 +00:00
Qing Li
6e6b3f7cbc This main goals of this project are:
1. separating L2 tables (ARP, NDP) from the L3 routing tables
2. removing as much locking dependencies among these layers as
   possible to allow for some parallelism in the search operations
3. simplify the logic in the routing code,

The most notable end result is the obsolescent of the route
cloning (RTF_CLONING) concept, which translated into code reduction
in both IPv4 ARP and IPv6 NDP related modules, and size reduction in
struct rtentry{}. The change in design obsoletes the semantics of
RTF_CLONING, RTF_WASCLONE and RTF_LLINFO routing flags. The userland
applications such as "arp" and "ndp" have been modified to reflect
those changes. The output from "netstat -r" shows only the routing
entries.

Quite a few developers have contributed to this project in the
past: Glebius Smirnoff, Luigi Rizzo, Alessandro Cerri, and
Andre Oppermann. And most recently:

- Kip Macy revised the locking code completely, thus completing
  the last piece of the puzzle, Kip has also been conducting
  active functional testing
- Sam Leffler has helped me improving/refactoring the code, and
  provided valuable reviews
- Julian Elischer setup the perforce tree for me and has helped
  me maintaining that branch before the svn conversion
2008-12-15 06:10:57 +00:00
Bjoern A. Zeeb
a37de8bed9 Make compile without INET.
MFC after:	2 months
2008-11-05 11:43:01 +00:00
Dag-Erling Smørgrav
1ede983cc9 Retire the MALLOC and FREE macros. They are an abomination unto style(9).
MFC after:	3 months
2008-10-23 15:53:51 +00:00
Robert Watson
e0cf89fc53 Use ANSI C function protypes and declarations for if_arcsubr.
MFC after:	1 month
2006-04-12 07:44:31 +00:00
Andre Oppermann
5d691e6da8 Return mbuf pointer or NULL from ip_fastforward() as the mbuf pointer
may have changed by m_pullup() during fastforward processing.

While this is a bug it is actually never triggered in real world
situations and it is not remotely exploitable.

Found by:	Coverity Prevent(tm)
Coverity ID:	CID780
Sponsored by:	TCP/IP Optimization Fundraise 2005
2006-01-18 14:24:39 +00:00
Ruslan Ermilov
4a0d6638b3 - Store pointer to the link-level address right in "struct ifnet"
rather than in ifindex_table[]; all (except one) accesses are
  through ifp anyway.  IF_LLADDR() works faster, and all (except
  one) ifaddr_byindex() users were converted to use ifp->if_addr.

- Stop storing a (pointer to) Ethernet address in "struct arpcom",
  and drop the IFP2ENADDR() macro; all users have been converted
  to use IF_LLADDR() instead.
2005-11-11 16:04:59 +00:00
Robert Watson
13f4c340ae Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and
IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to
ifnet.if_drv_flags.  Device drivers are now responsible for
synchronizing access to these flags, as they are in if_drv_flags.  This
helps prevent races between the network stack and device driver in
maintaining the interface flags field.

Many __FreeBSD__ and __FreeBSD_version checks maintained and continued;
some less so.

Reviewed by:	pjd, bz
MFC after:	7 days
2005-08-09 10:20:02 +00:00
Robert Watson
09df718e0e When allocating link layer ifnet address list entries in
ifp->if_resolvemulti(), do so with M_NOWAIT rather than M_WAITOK, so
that a mutex can be held over the call.  In the FDDI code, add a
missing M_ZERO.  Consumers are already aware that if_resolvemulti()
can fail.

MFC after:	1 week
2005-08-02 17:52:52 +00:00
Brooks Davis
fc74a9f93a Stop embedding struct ifnet at the top of driver softcs. Instead the
struct ifnet or the layer 2 common structure it was embedded in have
been replaced with a struct ifnet pointer to be filled by a call to the
new function, if_alloc(). The layer 2 common structure is also allocated
via if_alloc() based on the interface type. It is hung off the new
struct ifnet member, if_l2com.

This change removes the size of these structures from the kernel ABI and
will allow us to better manage them as interfaces come and go.

Other changes of note:
 - Struct arpcom is no longer referenced in normal interface code.
   Instead the Ethernet address is accessed via the IFP2ENADDR() macro.
   To enforce this ac_enaddr has been renamed to _ac_enaddr.
 - The second argument to ether_ifattach is now always the mac address
   from driver private storage rather than sometimes being ac_enaddr.

Reviewed by:	sobomax, sam
2005-06-10 16:49:24 +00:00
Warner Losh
c398230b64 /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
Stefan Farfeleder
e7b80a8e24 Prefer C99's __func__ over GCC's __FUNCTION__. 2004-09-22 17:16:04 +00:00
Max Laier
affc907d0c Replace IF_HANDOFF with new IFQ_HANDOFF to enqueue with ALTQ once enabled on
the respective drivers.
2004-06-15 23:57:42 +00:00
Poul-Henning Kamp
5dba30f15a add missing #include <sys/module.h> 2004-05-30 20:27:19 +00:00
Luigi Rizzo
cd46a114fc This commit does two things:
1. rt_check() cleanup:
    rt_check() is only necessary for some address families to gain access
    to the corresponding arp entry, so call it only in/near the *resolve()
    routines where it is actually used -- at the moment this is
    arpresolve(), nd6_storelladdr() (the call is embedded here),
    and atmresolve() (the call is just before atmresolve to reduce
    the number of changes).
    This change will make it a lot easier to decouple the arp table
    from the routing table.

    There is an extra call to rt_check() in if_iso88025subr.c to
    determine the routing info length. I have left it alone for
    the time being.

    The interface of arpresolve() and nd6_storelladdr() now changes slightly:
     + the 'rtentry' parameter (really a hint from the upper level layer)
       is now passed unchanged from *_output(), so it becomes the route
       to the final destination and not to the gateway.
     + the routines will return 0 if resolution is possible, non-zero
       otherwise.
     + arpresolve() returns EWOULDBLOCK in case the mbuf is being held
       waiting for an arp reply -- in this case the error code is masked
       in the caller so the upper layer protocol will not see a failure.

2. arpcom untangling
    Where possible, use 'struct ifnet' instead of 'struct arpcom' variables,
    and use the IFP2AC macro to access arpcom fields.
    This mostly affects the netatalk code.

=== Detailed changes: ===
net/if_arcsubr.c
   rt_check() cleanup, remove a useless variable

net/if_atmsubr.c
   rt_check() cleanup

net/if_ethersubr.c
   rt_check() cleanup, arpcom untangling

net/if_fddisubr.c
   rt_check() cleanup, arpcom untangling

net/if_iso88025subr.c
   rt_check() cleanup

netatalk/aarp.c
   arpcom untangling, remove a block of duplicated code

netatalk/at_extern.h
   arpcom untangling

netinet/if_ether.c
   rt_check() cleanup (change arpresolve)

netinet6/nd6.c
   rt_check() cleanup (change nd6_storelladdr)
2004-04-25 09:24:52 +00:00
Luigi Rizzo
7395ff5cff whoops, forgot to fix these places where arpresolve() was used
Detected by: tinderbox
2004-04-04 11:52:09 +00:00
Matthew N. Dodd
fd5bc0548f MAC addresses are 8 bits in ARCNET. Adjust bcopy(). 2004-03-22 03:52:51 +00:00
Matthew N. Dodd
3648c62188 - Correct variable name.
- Correct unnecessary use of htons().

Reported by:	many.
2004-03-21 17:27:41 +00:00
Matthew N. Dodd
8f2e60d91e Handle AF_ARP. 2004-03-21 06:34:34 +00:00
Andre Oppermann
9188b4a169 Introduce ip_fastforward and remove ip_flow.
Short description of ip_fastforward:

 o adds full direct process-to-completion IPv4 forwarding code
 o handles ip fragmentation incl. hw support (ip_flow did not)
 o sends icmp needfrag to source if DF is set (ip_flow did not)
 o supports ipfw and ipfilter (ip_flow did not)
 o supports divert, ipfw fwd and ipfilter nat (ip_flow did not)
 o returns anything it can't handle back to normal ip_input

Enable with sysctl -w net.inet.ip.fastforwarding=1

Reviewed by:	sam (mentor)
2003-11-14 21:02:22 +00:00
Brooks Davis
9bf40ede4a Replace the if_name and if_unit members of struct ifnet with new members
if_xname, if_dname, and if_dunit. if_xname is the name of the interface
and if_dname/unit are the driver name and instance.

This change paves the way for interface renaming and enhanced pseudo
device creation and configuration symantics.

Approved By:	re (in principle)
Reviewed By:	njl, imp
Tested On:	i386, amd64, sparc64
Obtained From:	NetBSD (if_xname)
2003-10-31 18:32:15 +00:00
Jonathan Lemon
1cafed3941 Update netisr handling; Each SWI now registers its queue, and all queue
drain routines are done by swi_net, which allows for better queue control
at some future point.  Packets may also be directly dispatched to a netisr
instead of queued, this may be of interest at some installations, but
currently defaults to off.

Reviewed by: hsu, silby, jayanth, sam
Sponsored by: DARPA, NAI Labs
2003-03-04 23:19:55 +00:00
Matthew N. Dodd
7f760c4890 Reduce code duplication. This adds the function rt_check() to route.c.
Approved by:	 sam (in principle)
2003-03-02 21:34:37 +00:00
Warner Losh
a163d034fa Back out M_* changes, per decision of the TRB.
Approved by: trb
2003-02-19 05:47:46 +00:00
Max Khon
6b58184eb0 - bpf is now working (tested with tcpdump)
- fix promiscious mode

MFC after:	3 days
2003-01-30 15:55:02 +00:00
Max Khon
6cdcc15976 - add support for IPX (tested with mount -t nwfs and mars_nwe),
IP fast forwarding, SIOCGIFADDR, setting hardware address (not currently
enabled in cm driver), multicasts (experimental)
- add ARC_MAX_DATA, use IF_HANDOFF, remove arc_sprintf() and some unused
variables
- if_simloop logic is made more similar to ethernet
- drop not ours packets early (if we are not in promiscous mode)

Submitted by:	mark tinguely (partially)
2003-01-24 01:32:20 +00:00
Alfred Perlstein
44956c9863 Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
2003-01-21 08:56:16 +00:00
Sam Leffler
6fc32a2495 network interface and link layer changes:
o on input don't strip the Ethernet header from packets
o input packet handling is now done with if_input
o track changes to ether_ifattach/ether_ifdetach API
o track changes to bpf tapping
o call ether_ioctl for default handling of ioctl's
o use constants from net/ethernet.h where possible

Reviewed by:	many
Approved by:	re
2002-11-15 00:00:15 +00:00
Brooks Davis
29e1b85f97 Use if_printf(ifp, "blah") instead of
printf("%s%d: blah", ifp->if_name, ifp->if_xname).
2002-10-21 02:51:56 +00:00
Poul-Henning Kamp
08b29601a0 Be consistent about functions being static.
Spotted by:	FlexeLint
2002-10-16 10:45:53 +00:00
Max Khon
b3827c8bd6 Cosmetical change: remove empty line to reduce diffs to RELENG_4 2002-04-14 16:40:11 +00:00
Luigi Rizzo
2dfe320036 Fix incorrect m_free - m_freem() usage. 2002-04-04 06:00:21 +00:00
Alfred Perlstein
929ddbbb89 Remove __P. 2002-03-19 21:54:18 +00:00
Max Khon
eda6ecb22a - generic Arcnet framework
- device driver for SMC COM90cx6 Arcnet network adapters

Obtained from:	NetBSD
2002-01-08 20:03:13 +00:00