The PR submitter and the PR handler were unable to test this code
using Teredo userland clients such as Miredo. However, the PR handler
dumped and analyzed some of the packets produced by Miredo and they
seemed fine.
(On a side note: I was unable to setup Teredo in Windows XP and the
problem seemed similar to what I currently see in NetBSD: lack of
replies from the Teredo relay).
- most of the kernel code will not care about the actual encoding of
scope zone IDs and won't touch "s6_addr16[1]" directly.
- similarly, most of the kernel code will not care about link-local
scoped addresses as a special case.
- scope boundary check will be stricter. For example, the current
*BSD code allows a packet with src=::1 and dst=(some global IPv6
address) to be sent outside of the node, if the application do:
s = socket(AF_INET6);
bind(s, "::1");
sendto(s, some_global_IPv6_addr);
This is clearly wrong, since ::1 is only meaningful within a single
node, but the current implementation of the *BSD kernel cannot
reject this attempt.
- and, while there, don't try to remove the ff02::/32 interface route
entry in in6_ifdetach() as it's already gone.
This also includes some level of support for the standard source
address selection algorithm defined in RFC3484, which will be
completed on in the future.
From the KAME project via JINMEI Tatuya.
Approved by core@.
Applied fix, similar to the one suggested in the PR. We use a counter to
limit the number of consecutive packets accepted from the fast queue. This
number can be set via ioctl, but this has not been implemented. Since there
are only 2 queues other proposed solutions such as ALTQ are overkill and
they have not been implemented in the past 7 years. Now LCP echos can be
used to detect that the line is up.
clients of bpf_filter(), like if_ppp, that are not limited by
bpf_maxbufsize. The same check is done at the run time, so there is no
problem created.
Noticed by Guy Harris in private email.
- Replace references to linesw[0] with a ttyldisc_default() function
that returns the default ("termios") line discipline.
- The linesw[] array is gone, replaced by a linked list.
- ttyldisc_add() and ttyldisc_remove() have been replaced by
ttyldisc_attach() and ttyldisc_detach().
- Things that provide line disciplines are now responsible for
registering those disciplines with the system. The linesw
structures are no longer declared in tty_conf.c
- Line disciplines are now refcounted; a lookup causes a reference to
be held. ttyldisc_release() releases the reference. Attempts to
detach an in-use line discipline result in EBUSY.
- Fix function signature lossage in if_sl.c, if_strip.c, and tty_tb.c
that was masked by the old tty_conf.c
- tty_init() is no longer necessary; delete it and its call from main().
and net.bpf.peers sysctls respectively.
A new structure was added to describe the external (user viewable)
representation of a BPF file; a new entry was added to the bpf_d
structure to store the PID of the calling process; a simple_lock was added
to protect the insert/removal from the net.bpf.peers sysctl handler.
This idea came from FreeBSD (Christian S.J. Peron) but while it is
implemented with sysctl's it differs a bit.
Reviewed by: christos@ and atatat@ (who gave me the tip for the net.bpf.peers
sysctl helper function).
and size of a userland buffer. The kernel shall not copyout more
than ifr_buflen bytes to ifr_buf. For future ioctls that use
ifr_buf and ifr_buflen instead of ifr_data, the kernel can return
a larger struct in the future than when the ioctl is introduced,
without breaking ABI compatibility, provided that the size, order,
and semantics of the fields at the front of the struct does not
change.
store a struct ifnet *, and define it for udp/tcp/rawip for INET and
INET6. When deleting a struct ifnet, invoke PRU_PURGEIF on all
protocols marked with PR_PURGEIF. Closes PR kern/29580 (mine).
The __UNCONST macro is now used only where necessary and the RW macros
are gone. Most of the changes here are consumers of the
sysctl_createv(9) interface that now takes a pair of const pointers
which used not to be.
"const struct mbuf *" to "struct mbuf *". Without this change the
actual implementation cannot even use m_copydata() on the mbuf chain
which is broken.
the non point-to-point interfaces that has one queue, and one used by
the point to point interfaces that has two queues. No functional changes.
XXX: The ALTQ stuff makes the code ugly.
XXX: More cleanup to come
