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hostower => hostowner, introduced in 99ed9623b5.
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There is currently no way to get the current mouse position
and button states without blocking.
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This makes it possible to start a new namespace
using a specific service directory as the
starting point (see srv(3)).
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The original intention was to put devskel in to the
kernel to detach what it provides from devsrv.
That is not a good reason, just move it to userspace.
auth/box has been changed to exec skelfs instead
of relying on '#z'.
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this leaks /srvs, revert until we can fix it.
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/srv/clone allows a namespace to get their
own private /srv session.
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This makes it much easier to run a rc
program without needing to bind in all of '#s/boot'.
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This avoids ipconfig having to explicitely specify the tag
when we want to set route type, as the tag can be provided
implicitely thru the "tag" command.
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This adds a new route "t"-flag that enables network address translation,
replacing the source address (and local port) of a forwarded packet to
one of the outgoing interface.
The state for a translation is kept in a new Translation structure,
which contains two Iphash entries, so it can be inserted into the
per protocol 4-tuple hash table, requiering no extra lookups.
Translations have a low overhead (~200 bytes on amd64),
so we can have many of them. They get reused after 5 minutes
of inactivity or when the per protocol limit of 1000 entries
is reached (then the one with longest inactivity is reused).
The protocol needs to export a "forward" function that is responsible
for modifying the forwarded packet, and then handle translations in
its input function for iphash hits with Iphash.trans != 0.
This patch also fixes a few minor things found during development:
- Include the Iphash in the Conv structure, avoiding estra malloc
- Fix ttl exceeded check (ttl < 1 -> ttl <= 1)
- Router should not reply with ttl exceeded for multicast flows
- Extra checks for icmp advice to avoid protocol confusions.
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Sometimes, there is the one-off occation when one needs to
pass a huge list in rc...
This change makes devenv track total memory consumption
of environment groups allowing them to grow up to 1MB in
size (including overhead).
(Before, only the variable size was restricted, but
not the amount of files being created).
The maximum value size of a single environment variable
is set to half of the total size, which allows the
occational large value. (But not many of them).
Because we track all memory consuption, it is also
now possible to create around 10k small environment
variales.
A hashtable is added for name lookups and the qid.path
was changed to allow direct indexing into the entry
array without needing a scan lookup.
All smalloc() calls have been removed, exhaustion is
handled with error(Enomem) avoiding deadlock
in case we run out of kernel memory.
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It was accidentally removed when documenting
the sticky segment type in commit 99ed9623b.
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vmx(3) does not use itself to implement virtual machines.
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Tilting allows using left/right rotated or invetrted display orientation.
This can be changed at runtime such as: echo tilt right > /dev/vgactl
This removes the old panning and vga overlays as they are only implemented
with some ancient vga controllers.
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The process group id is essentially a unique id
of the namespace but it was never well documented
nor is it used by any program.
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Added a ver= field to the filter to distinguish the ip version.
By default, a filter is parsed as ipv6, and after parsing
proto, src and dst fields are converted to ipv4. When no
ver= field is specified, a ip version filter is implicitely
added and both protocols are parsed.
This change also gets rid of the fast compare types as the
filed might not be aligned correctly in the packet.
This also fixes the ifc= filter, as we have to check any
local address.
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the maximum number of ip stacks is a implementation detail
of devip. it is 128 currently, instead of 16 as suggested
in the manpage.
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this is a reimplementation of infernos os(1) command, which
allows running commands in the underhying host operating
system when inferno runs in hosted mode (emu). but unlike
inferno, we want to use it to run commands on the client
side of a inferno or drawterm session from the plan9 cpu
server, so it defaults to /mnt/term/cmd for the mountpoint.
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