Commit Graph

607 Commits

Author SHA1 Message Date
Hajimu UMEMOTO
e7e51bc3e1 Make net.inet6.ip6.auto_linklocal tunable. Someone may want to
enable/disable auto_linklocal even in single user mode.

Discussed with:	re@, gnn@
MFC after:	3 days
2006-10-13 12:45:53 +00:00
Hajimu UMEMOTO
f5c04409eb Revert the default value of net.inet6.ip6.auto_linklocal to 1.
If ipv6_enable is not set to "YES", net.inet6.ip6.auto_linklocal
is turned to 0 at boot.

Discussed with:	re@, gnn@
MFC after:	3 days
2006-10-13 12:41:36 +00:00
John Hay
ae0ddac700 Hopefully the last tweak in trying to make it possible to add ipv6 direct
host routes without side effects.

Submitted by:	JINMEI Tatuya
MFC after:	4 days
2006-10-02 19:15:10 +00:00
George V. Neville-Neil
90ce6fa1c8 Turn off automatic link local address if ipv6_enable is not set to YES
in rc.conf

Reviewed by:    KAME core team, cperciva
MFC after:      3 days
2006-10-02 10:13:30 +00:00
John Hay
584b68e792 A better fix is to check if it is a host route.
Submitted by:	ume
MFC after:	5 days
2006-09-30 20:25:33 +00:00
John Hay
c482f11edb My previous commit broke "route add -inet6 <network_addr> -interface gif0".
Fix that by excluding point-to-point interfaces.

MFC after:	5 days
2006-09-30 14:08:57 +00:00
Bruce M Simpson
910e1364b6 Nits.
Submitted by:	ru
2006-09-29 16:16:41 +00:00
Bruce M Simpson
2d20d32344 Push removal of mrouted down to the rest of the tree. 2006-09-29 15:45:11 +00:00
SUZUKI Shinsuke
831c32014e fixed a bug that IPv6 packets arriving to stf are not accepted.
(a degrade introduced in in6.c Rev 1.61)

PR: kern/103415
Submitted by: JINMEI Tatuya
MFC after: 1 week
2006-09-22 01:42:22 +00:00
John Hay
f129892448 Make it possible to add an IPv6 host route to a host directly connected.
Use something like this:
route add -inet6 <dest_addr> <my_addr_on_that_interface> -interface -llinfo

This is usefull for wireless adhoc mesh networks.

MFC after:	5 days
2006-09-16 06:24:28 +00:00
John Hay
1fcae350ae All multicast listeners on a port should get one copy of the packet. This
was broken during the locking changes.
2006-09-07 18:44:54 +00:00
Andre Oppermann
233dcce118 First step of TSO (TCP segmentation offload) support in our network stack.
o add IFCAP_TSO[46] for drivers to announce this capability for IPv4 and IPv6
 o add CSUM_TSO flag to mbuf pkthdr csum_flags field
 o add tso_segsz field to mbuf pkthdr
 o enhance ip_output() packet length check to allow for large TSO packets
 o extend tcp_maxmtu[46]() with a flag pointer to pass interface capabilities
 o adjust all callers of tcp_maxmtu[46]() accordingly

Discussed on:	-current, -net
Sponsored by:	TCP/IP Optimization Fundraise 2005
2006-09-06 21:51:59 +00:00
John Hay
80a684e083 Use net.inet6.ip6.redirect / ip6_sendredirects as part of the decision
to generate icmp6 redirects. Now it is possible to switch redirects off.

MFC after:	1 week
2006-09-05 19:20:42 +00:00
Brooks Davis
43bc7a9c62 With exception of the if_name() macro, all definitions in net_osdep.h
were unused or already in if_var.h so add if_name() to if_var.h and
remove net_osdep.h along with all references to it.

Longer term we may want to kill off if_name() entierly since all modern
BSDs have if_xname variables rendering it unnecessicary.
2006-08-04 21:27:40 +00:00
Robert Watson
c9db0fad09 Align IPv6 socket locking with IPv4 locking: lock socket buffer explicitly
and use _locked variants to avoid extra lock and unlock operations.

Reviewed by:	gnn
MFC after:	1 week
2006-07-23 12:24:22 +00:00
George V. Neville-Neil
c6af35ee0e The KAME project ceased work on IPv6 and IPSec in March of 2006.
Remove the README file which warns against cosmetic or local only
changes.  FreeBSD committers should now feel free to work on the
IPv6 and IPSec code without fetters.  The KAME mailing lists still
exist and it is always a good idea to ask questions about this code
on the snap-users@kame.net mailing list.

Reviewed by:	rwatson, brooks
2006-07-22 02:32:32 +00:00
Robert Watson
a152f8a361 Change semantics of socket close and detach. Add a new protocol switch
function, pru_close, to notify protocols that the file descriptor or
other consumer of a socket is closing the socket.  pru_abort is now a
notification of close also, and no longer detaches.  pru_detach is no
longer used to notify of close, and will be called during socket
tear-down by sofree() when all references to a socket evaporate after
an earlier call to abort or close the socket.  This means detach is now
an unconditional teardown of a socket, whereas previously sockets could
persist after detach of the protocol retained a reference.

This faciliates sharing mutexes between layers of the network stack as
the mutex is required during the checking and removal of references at
the head of sofree().  With this change, pru_detach can now assume that
the mutex will no longer be required by the socket layer after
completion, whereas before this was not necessarily true.

Reviewed by:	gnn
2006-07-21 17:11:15 +00:00
Stephan Uphoff
d915b28015 Fix race conditions on enumerating pcb lists by moving the initialization
( and where appropriate the destruction) of the pcb mutex to the init/finit
functions of the pcb zones.
This allows locking of the pcb entries and race condition free comparison
of the generation count.
Rearrange locking a bit to avoid extra locking operation to update the generation
count in in_pcballoc(). (in_pcballoc now returns the pcb locked)

I am planning to convert pcb list handling from a type safe to a reference count
model soon. ( As this allows really freeing the PCBs)

Reviewed by:	rwatson@, mohans@
MFC after:	1 week
2006-07-18 22:34:27 +00:00
Oleg Bulyzhin
6372145725 Complete timebase (time_second -> time_uptime) conversion.
PR:		kern/94249
Reviewed by:	andre (few months ago)
Approved by:	glebius (mentor)
2006-07-05 23:37:21 +00:00
Yaroslav Tykhiy
4e6098c6a4 We needn't check "m" for NULL here because "off" should be within
the mbuf chain.  If we ever get a buggy caller, a bogus "off" should
be caught by the sanity check at the function entry.  Null "m" here
means a very unusual condition of a totally broken mbuf chain (wrong
m_pkthdr.len or whatever), so we can just page fault later.

Found by:	Coverity Prevent(tm)
CID:		825
2006-06-30 18:25:07 +00:00
Yaroslav Tykhiy
4b97d7affd There is a consensus that ifaddr.ifa_addr should never be NULL,
except in places dealing with ifaddr creation or destruction; and
in such special places incomplete ifaddrs should never be linked
to system-wide data structures.  Therefore we can eliminate all the
superfluous checks for "ifa->ifa_addr != NULL" and get ready
to the system crashing honestly instead of masking possible bugs.

Suggested by:	glebius, jhb, ru
2006-06-29 19:22:05 +00:00
Yaroslav Tykhiy
40e4360c10 Use queue(3) macros instead of accessing list/queue internals directly. 2006-06-29 16:56:07 +00:00
Bjoern A. Zeeb
421d8aa603 Use INPLOOKUP_WILDCARD instead of just 1 more consistently.
OKed by: rwatson (some weeks ago)
2006-06-29 10:49:49 +00:00
Pawel Jakub Dawidek
5279398812 - Use suser_cred(9) instead of directly comparing cr_uid.
- Compare pointer with NULL, instead of 0.

Reviewed by:	rwatson
2006-06-27 11:40:05 +00:00
Pawel Jakub Dawidek
835d4b8924 - Use suser_cred(9) instead of directly checking cr_uid.
- Change the order of conditions to first verify that we actually need
  to check for privileges and then eventually check them.

Reviewed by:	rwatson
2006-06-27 11:35:53 +00:00
Robert Watson
1e0acb6801 Use suser_cred() instead of a direct comparison of cr_uid with 0 in
rip6_output().

MFC after:	1 week
2006-06-25 13:54:59 +00:00
George V. Neville-Neil
a59af512d4 Fix spurious warnings from neighbor discovery when working with IPv6 over
point to point tunnels (gif).

PR:		93220
Submitted by:	Jinmei Tatuya
MFC after:	1 week
2006-06-08 00:31:17 +00:00
Seigo Tanimura
f8366b0334 Avoid spurious release of an rtentry. 2006-05-23 00:32:22 +00:00
Bjoern A. Zeeb
93e4f81d9f In IN6_IS_ADDR_V4MAPPED case instead of returning directly set error and
goto out so that locks will be dropped.

Reviewed by: rwatson, gnn
2006-05-20 13:26:08 +00:00
Max Laier
656faadcb8 Remove ip6fw. Since ipfw has full functional IPv6 support now and - in
contrast to ip6fw - is properly lockes, it is time to retire ip6fw.
2006-05-12 20:39:23 +00:00
Bjoern A. Zeeb
1b34a059cb Assert ip6_forward_rt protected by Giant adding GIANT_REQUIRED to
functions not yet asserting it but working on global ip6_forward_rt
route cache which is not locked and perhaps should go away in the
future though cache hit/miss ration wasn't bad.

It's #if 0ed in frag6 because the code working on ip6_forward_rt is.
2006-05-04 18:41:08 +00:00
Robert Watson
20e3d71cdd Break out socket access control and delivery logic from udp6_input()
into its own function, udp6_append().  This mirrors a similar structure
in udp_input() and udp_append(), and makes the whole thing a lot more
readable.

While here, add missing inpcb locking in UDP6 input path.

Reviewed by:	bz
MFC after:	3 months
2006-05-01 21:39:48 +00:00
Robert Watson
8deea4a8f3 Move lock assertions to top of in6_pcbladdr(): we still want them to run
even if we're going to return an argument-based error.

Assert pcbinfo lock in in6_pcblookup_local(), in6_pcblookup_hash(), since
they walk pcbinfo inpcb lists.

Assert inpcb and pcbinfo locks in in6_pcbsetport(), since
port reservations are changing.

MFC after:	3 months
2006-04-25 12:09:58 +00:00
Robert Watson
04f2073775 Modify in6_pcbpurgeif0() to accept a pcbinfo structure rather than a pcb
list head structure; this improves congruence to IPv4, and also allows
in6_pcbpurgeif0() to lock the pcbinfo.  Modify in6_pcbpurgeif0() to lock
the pcbinfo before iterating the pcb list, use queue(9)'s LIST_FOREACH()
for the iteration, and to lock individual inpcb's while manipulating
them.

MFC after:	3 months
2006-04-23 15:06:16 +00:00
Paul Saab
4f590175b7 Allow for nmbclusters and maxsockets to be increased via sysctl.
An eventhandler is used to update all the various zones that depend
on these values.
2006-04-21 09:25:40 +00:00
Robert Watson
086dafc15b Mirror IPv4 pcb locking into in6_setsockaddr() and in6_setpeeraddr():
acquire inpcb lock when reading inpcb port+address in order to prevent
races with other threads that may be changing them.

MFC after:	3 months
2006-04-15 05:24:23 +00:00
Robert Watson
8511b981f6 Assert the inpcb lock in udp6_output(), as we dereference various
fields.

MFC after:	3 months
2006-04-12 03:34:22 +00:00
Robert Watson
dec8026073 Add comment to udp6_input() that locking is missing from multicast
UDPv6 delivery.

Lock the inpcb of the UDP connection being delivered to before
processing IPSEC policy and other delivery activities.

MFC after:	3 months
2006-04-12 03:32:54 +00:00
Robert Watson
5383103aa0 Add udbinfo locking in udp6_input() to protect lookups of the inpcb
lists during UDPv6 receipt.

MFC after:	3 months
2006-04-12 03:23:56 +00:00
Robert Watson
ff7425ced0 Don't use spl around call to in_pcballoc() in IPv6 raw socket support;
all necessary synchronization appears present.

MFC after:	3 months
2006-04-12 03:07:22 +00:00
Robert Watson
41ba156433 Remove one remaining use of spl in the IPv6 fragmentation code, as
this code appears properly locked.

MFC after:	3 months
2006-04-12 03:06:20 +00:00
Robert Watson
e3beea90c7 Add missing locking to udp6_getcred(), remove spl use.
MFC after:	3 months
2006-04-12 03:03:47 +00:00
Robert Watson
4847772314 Remove spl use from IPv6 inpcb code.
In various inpcb methods for IPv6 sockets, don't check of so_pcb is NULL,
assert it isn't.

MFC after:	3 months
2006-04-12 02:52:14 +00:00
SUZUKI Shinsuke
8447156ce0 ip6_mrouter_done(): use if_allmulti(0) for disabling the multicast promiscuous mode
Obtained from: KAME
MFC after: 2 days
2006-04-10 14:33:22 +00:00
Robert Watson
c60afb3f55 Fix assertion description: !=, not ==.
Submitted by:	pjd
MFC after:	3 months
2006-04-09 16:33:41 +00:00
Robert Watson
14ba8add01 Update in_pcb-derived basic socket types following changes to
pru_abort(), pru_detach(), and in_pcbdetach():

- Universally support and enforce the invariant that so_pcb is
  never NULL, converting dozens of unnecessary NULL checks into
  assertions, and eliminating dozens of unnecessary error handling
  cases in protocol code.

- In some cases, eliminate unnecessary pcbinfo locking, as it is no
  longer required to ensure so_pcb != NULL.  For example, in protocol
  shutdown methods, and in raw IP send.

- Abort and detach protocol switch methods no longer return failures,
  nor attempt to free sockets, as the socket layer does this.

- Invoke in_pcbfree() after in_pcbdetach() in order to free the
  detached in_pcb structure for a socket.

MFC after:	3 months
2006-04-01 16:20:54 +00:00
Robert Watson
4c7c478d0f Break out in_pcbdetach() into two functions:
- in_pcbdetach(), which removes the link between an inpcb and its
  socket.

- in_pcbfree(), which frees a detached pcb.

Unlike the previous in_pcbdetach(), neither of these functions will
attempt to conditionally free the socket, as they are responsible only
for managing in_pcb memory.  Mirror these changes into in6_pcbdetach()
by breaking it into in6_pcbdetach() and in6_pcbfree().

While here, eliminate undesired checks for NULL inpcb pointers in
sockets, as we will now have as an invariant that sockets will always
have valid so_pcb pointers.

MFC after:	3 months
2006-04-01 16:04:42 +00:00
Robert Watson
bc725eafc7 Chance protocol switch method pru_detach() so that it returns void
rather than an error.  Detaches do not "fail", they other occur or
the protocol flags SS_PROTOREF to take ownership of the socket.

soclose() no longer looks at so_pcb to see if it's NULL, relying
entirely on the protocol to decide whether it's time to free the
socket or not using SS_PROTOREF.  so_pcb is now entirely owned and
managed by the protocol code.  Likewise, no longer test so_pcb in
other socket functions, such as soreceive(), which have no business
digging into protocol internals.

Protocol detach routines no longer try to free the socket on detach,
this is performed in the socket code if the protocol permits it.

In rts_detach(), no longer test for rp != NULL in detach, and
likewise in other protocols that don't permit a NULL so_pcb, reduce
the incidence of testing for it during detach.

netinet and netinet6 are not fully updated to this change, which
will be in an upcoming commit.  In their current state they may leak
memory or panic.

MFC after:	3 months
2006-04-01 15:42:02 +00:00
Robert Watson
ac45e92ff2 Change protocol switch pru_abort() API so that it returns void rather
than an int, as an error here is not meaningful.  Modify soabort() to
unconditionally free the socket on the return of pru_abort(), and
modify most protocols to no longer conditionally free the socket,
since the caller will do this.

This commit likely leaves parts of netinet and netinet6 in a situation
where they may panic or leak memory, as they have not are not fully
updated by this commit.  This will be corrected shortly in followup
commits to these components.

MFC after:      3 months
2006-04-01 15:15:05 +00:00
David Malone
fe12457335 This comment on various IPPORT_ defines was copied from in.h and
probably never fully applied to IPv6. Over time it has become more
stale, so replace it with something more up to date.

Reviewed by:	ume
MFC after:	1 month
2006-03-28 12:51:22 +00:00