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This change was defeating the code in rtrequest1(9) checking for route
entries with the same dst/gw when the same IP address was configured on
multiple interfaces.
As a result, multiple local routes were created for the same address and
marked as multipath. But changing their gateway to 127.0.0.1 would make
them similar and impossible to remove. This would leaves entries with a
stall ifa pointer as soon as the address was removed.
Prevent a panic reported by todd@
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ok henning@, dlg@, mikeb@
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all the per-interface lists of addresses.
Teaks and ok bluhm@, ok kspillner@, claudio@
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processing of router advertisements was already in the kernel.
With this rtsol{,d}(8) is no longer necessary.
The kernel starts sending solicitations with
# ifconfig $IF inet6 autoconf
or
inet6 autoconf
in /etc/hostname.$IF.
input stsp@
much help & OK mpi@
tweaks & OK bluhm@
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a magic number 4 since sometimes we can't fit a single packet
(jumbo frame) into 4 clusters.
OK dlg
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adding local route entries.
This hack made sense when we didn't have the RTF_LOCAL flag, but since
some months it is set on every local route.
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after discussions with beck deraadt kettenis.
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farewell, then. has been #ifdef notyet for the last 19 years
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bluetooth support doesn't work and isn't going anywhere. the current
design is a dead end, and should not be the basis for any future support.
general consensus says to whack it so as to not mislead the unwary.
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via if_rxring things. this effectively deprecates the third argument
for MCLGETI and m_clget and makes the mbuf layer no longer care about
interfaces and simplifies the allocation paths.
the timeout used to measure livelock has been moved to net/if.c.
ok mpi@
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out of the mbuf layer, and break the assumption that an interface will
only have a single ring per mbuf cluster size.
mpi@ is ok with moving this forward
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an interface. Two other operations are performed when issuing a
SIOCDIFADDR{_IN6,} ioctl: call the address hook and the per-driver
ioctl function.
Since carp(4) relies on an address hook to recalculate its hash, make
sure to call this hook when IFXF_NOINET6 is set or when the rdomain is
changed.
ok henning@, mikeb@
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is no link-local address assigned by default, which - by default, since
INET6 is in the GENERIC kernels - makes the machine and services on it
reachable. No such thing in IPv4 land.
since assigning an inet6 address manually or running rtsol(d) etc resets the
NOINET6 flag and causes the link-local to be assigned, this really is a noop
for all inet6 users with the exception of those ONLY using the default
link-local address. These needs to run "ifconfig <if> inet6 eui64" or put
the equivalent in hostname.if.
discussed at length with many, ok at least by krw todd benno sthen
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the #define stays since it's userland visible and who knows what uses it
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Tree.
Since interfaces only support one link-layer address accessible via the
if_sadl member, there's no need to have it elsewhere. This improves
various address lookups because the first element of the list, the link-
layer address, won't necessarily be discarded.
Finally remove the empty netmask associated to every link-layer address.
This hack was needed to (ab)use the address & netmask comparison code to
do a strcmp() on the interface name embedded in the sdl_data field.
ok henning@, claudio@
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in the case where the rdomain was not switched. Make sure ifa_add() is
only called if ifa_del() was called previously. Hopefully we got all the
corruption fixed.
With and OK mpi@
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instead of relying on hacks in nd6_rtrequest() to add a route to
loopback for each address configured on such interfaces.
While here document that abusing lo0 for local traffic is not safe
for interfaces in a non-default rdomain.
Tested by claudio@, jca@ and sthen@, ok sthen@
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can be given to ifa_ifwithnet().
Handle this specific case directly and let ifa_ifwithnet() do only
one thing: iterate on all the addresses of all the interfaces in a
given routing domain to return the most specific matching address.
ok mikeb@
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RB lookup tree because the rdomain id is part of the lookup key.
Without this the RB tree gets corrupted and in the worst case a use after
free can happen when the interface is destroyed.
Why the sadl addresses are added to the tree in the first place is something
to reconsider.
OK henning@, mpi@, sthen@
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connected routes to prefixes/hosts.
Since the introduction of rt_ifa_addloop(9) and rt_ifa_delloop(9),
rtinit() was just a wrapper, so use the underlying functions
directly and document them.
Inputs from and ok mikeb@, manpage tweaks from jmc@
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tree and the 80211 nodes need it.
ok henning@, mikeb@
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from the per-ifp list when an interface is destroyed/removed the
only address left on the list at this point is the link-layer one.
So remove the custom loop and its associated hack for the link-layer
address and simply call if_free_sadl().
As a side effect, this should fix any scenario where if_alloc_sadl()
is called multiple time since the first link-layer address allocated
was never removed from the per-ifp list.
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Instead of linking multicast records to the first configured address of
the corresponding protocol, making this address and its position in the
global list special, add them to a new list directly linked to the
interface descriptor.
This new multicast address list is similar to the address list, all its
elements contain a protocol agnostic part. This design allows us to
be able to join a multicast group without necessarily having a configured
address. That means IPv6 multicast kludges are no longer needed.
Another benefit is to be able to add and remove an IP address from an
interface without worrying about multicast records. That means that the
global IPv4 list is no longer needed since the first configured address
of an interface is no longer special.
This new list might also be extended in the future to contain the
link-layer addresses used to configure hardware filters.
Tested by sthen@ and weerd@, ok mikeb@
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ok mikeb@, henning@, claudio@
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ok mikeb@, henning@, deraadt@, brad@, miod@
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While here add a comment explaining detach hooks' order of execution when
destroying/detaching an interface.
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network to presentation format to inet_ntop().
The few remaining functions will be soon converted.
ok mikeb@, deraadt@ and moral support from henning@
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global variables to in.h.
ok mikeb@, deraadt@
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Started by claudio@ for IPv4, lots of heavy work by sperreault@
My part started at s2k11, continued at n2k12, g2k12, c2k12 and n2k13.
Lots of help and hints from claudio and bluhm
OK claudio@, bluhm@
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OK henning@
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to the routing table from the hardware interrupt context defer the
if_link_state_change to the process context.
a token (an interface index) is passed to the workq in order to
make sure that if the interface would be gone by the time syswq
goes around to run the task it would just fall through.
ok henning, mpi, deraadt, claudio
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ok mpi@ henning@ benno@
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limit the possible races related to unscheduled task, or anything
else, relying on an unique index.
I say "limit" here because a race can still occurs if you run out
of indexes and jump back to 1. A generation number can be added
later to avoid this problem.
ok deraadt@, claudio@, krw@, mikeb@, "I can live with it" reyk@
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created a bunch of useless dependencies. Remove this implicit
inclusion and do an explicit #include <netinet6/in6_var.h> when it
is needed.
OK mpi@ henning@
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of an interface, named after its IPv6 equivalent.
Make use of it instead of removing addresses by hand when detaching
or destroying an interface. As a bonus, multicast records linked
to the just divorced^Wdetached interface are no longer leaked.
No objection from the gang, ok mikeb@
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on the parent interface. This is similar to what bridge(4), trunk(4)
or carp(4) are doing and allows us to get rid of the detachhook.
ok reyk@, mikeb@
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depends on this feature, discussed with claudio@.
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the possible races related to unscheduled task relying on an unique index.
I say "limit" here because a race can still occurs if you run out of
indexes and jump back to 1.
ok krw@, mikeb@
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ok krw@, mikeb@
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ok mikeb@, sthen@, tedu@ (implied), doc bits ok jmc@
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Reported by naddy@
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structure rather than doing various M_WAITOK allocations during
the *attach() functions, we always rely on them anyway.
ok mikeb@, uebayasi@
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succeed, and it's always called in sleepable context.
OK mikeb@ yasuoka@
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array indexed by interface numbers, add a new field to the interface
descriptor pointing to it.
claudio@ and todd@ like it, ok mikeb@
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OK tedu@ claudio@
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slipped by on i386, but the zaurus doesn't automagically pick it up.
spotted by patrick
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ok millert@, haesbaert@, bluhm@
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