IRQ 0 and not an ExtINT pin. The MADT enumerators ignore the PC-AT flag
and ignore overrides that map IRQ 0 to pin 2 when this quirk is present.
- Add a block comment above the quirks to document each quirk so that we
can use more verbose descriptions quirks.
MFC after: 2 weeks
ACPI MADT only does if the PC-AT flag is set), then don't assume that pin 0
on the first I/O APIC is an ExtINT pin. Instead, assume that it is ISA
IRQ 0.
with the kernel compile time option:
options IPFIREWALL_FORWARD_EXTENDED
This option has to be specified in addition to IPFIRWALL_FORWARD.
With this option even packets targeted for an IP address local
to the host can be redirected. All restrictions to ensure proper
behaviour for locally generated packets are turned off. Firewall
rules have to be carefully crafted to make sure that things like
PMTU discovery do not break.
Document the two kernel options.
PR: kern/71910
PR: kern/73129
MFC after: 1 week
so that parent interface is not left in promiscous mode after carp
interface is destroyed.
This is not perfect, since promisc counter is added when carp
interface is assigned an IP address. However, when address is removed
parent interface is still in promiscuous mode. Only removal of
carp interface removes promisc from parent. Same way in OpenBSD.
Sponsored by: Rambler
List devfs_dirents rather than vnodes off their shared struct cdev, this
saves a pointer field in the vnode at the expense of a field in the
devfs_dirent. There are often 100 times more vnodes so this is bargain.
In addition it makes it harder for people to try to do stypid things like
"finding the vnode from cdev".
Since DEVFS handles all VCHR nodes now, we can do the vnode related
cleanup in devfs_reclaim() instead of in dev_rel() and vgonel().
Similarly, we can do the struct cdev related cleanup in dev_rel()
instead of devfs_reclaim().
rename idestroy_dev() to destroy_devl() for consistency.
Add LIST_ENTRY de_alias to struct devfs_dirent.
Remove v_specnext from struct vnode.
Change si_hlist to si_alist in struct cdev.
String new devfs vnodes' devfs_dirent on si_alist when
we create them and take them off in devfs_reclaim().
Fix devfs_revoke() accordingly. Also don't clear fields
devfs_reclaim() will clear when called from vgone();
Let devfs_reclaim() call dev_rel() instead of vgonel().
Move the usecount tracking from dev_rel() to devfs_reclaim(),
and let dev_rel() take a struct cdev argument instead of vnode.
Destroy SI_CHEAPCLONE devices in dev_rel() (instead of
devfs_reclaim()) when they are no longer used. (This
should maybe happen in devfs_close() instead.)
that NFS ever started using it. Long time ago I added the necessary
vhold()/vdrop() calls to replace it, but forgot to remove the v_id code.
Do it now.
It is _never_ OK to find a vnode from a struct cdev because you have
no way of telling if you get the right one. You might be in jail or
chroot for instance.
The fundamental problem is that we get only the lower 8 bits of the
minor device number so there is no guarantee that we can actually
find the disk device in question at all.
This was probably a bigger issue pre-GEOM where the upper bits
signaled which slice were in use.
The secondary problem is how we get from (partial) dev_t to vnode.
The correct implementation will involve traversing the mount list
looking for a perfect match or a possible match (for truncated
minor).
hosts to share an IP address, providing high availability and load
balancing.
Original work on CARP done by Michael Shalayeff, with many
additions by Marco Pfatschbacher and Ryan McBride.
FreeBSD port done solely by Max Laier.
Patch by: mlaier
Obtained from: OpenBSD (mickey, mcbride)
this can cause a really heavy load on system. Several kernel debugging
messages can be triggered even remotely (e.g. bad ARP replies).
Use kern.warning instead, so that really significant messages still
will be printed on console.
Reviewed by: current@
MFC after: 1 week
Security: this change fixes a DoS condition, when default system
console is serial, and box is flooded with bogus ARP
packets
to the Lst_ForEach function this macro reduces the number of function
calls per invocation by N + 1 (where N is the number of list elements)
and increases code locality thereby increasing readability and
(maybe) performance.
address is not supplied, then jail IP is choosed and in_pcbbind() is called.
Since udp_output() does not save local addr after call to in_pcbconnect_setup(),
in_pcbbind() is called for each packet, and this is incorrect.
So, we shall treat jailed sockets specially in udp_output(), we will save
their local address.
This fixes a long standing bug with broken sendto() system call in jails.
PR: kern/26506
Reviewed by: rwatson
MFC after: 2 weeks
loopback interface. Nobody have explained me sense of this check.
It breaks connect() system call to a destination address which is
loopback routed (e.g. blackholed).
Reviewed by: silence on net@
MFC after: 2 weeks
modes, systems may take longer. If the status values don't match, try
matching just the lowest 8 bits if no bits above 8 are set in the desired
value. The IBM R32 has other bits set in the status register that are
irrelevant to the expected value.
