ipv4 & ipv6: implement connect() by setting the socket's peer address

Change-Id: Ic0fdc3f1a880aaef9326d8d4bfb13199c1d61dd4
Reviewed-on: https://review.haiku-os.org/c/haiku/+/7476
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

IPv4: Overall MTU is 65535 (0xFFFF).

If the route supports a greater MTU, we need to
clamp it.

The loopback reports an MTU greater by one byte
(65536), and if we don't clamp it here, TCP will
try to send packets actually that large (and fail.)

IPv4: Make header fields go out of scope when no longer usable.

There was a comment indicating where this happened, but then
there was a use of one of them after this point. Fix that,
and add { } around their use to prevent this from happening again.

network/ipv4: Fix NULL dereference in multicast-send.

Fixes the KDL in #18585.
While at it, add a missing NULL check and fix a leak.

ipv4: bind() should return EADDRNOTAVAIL when the address isn't available

"EADDRNOTAVAIL: The specified address is not available from the local machine."

Change-Id: Ic306acc60459f5b518eb53f4123c5e3a255b178e
Reviewed-on: https://review.haiku-os.org/c/haiku/+/6457
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

kernel & add-ons: Adjustments to use DoublyLinkedList::InsertBefore.

The Insert(before, element) function has been marked deprecated since
2010, but still had many usage and kept accumulating more. It's long
past time we got rid of all them and actually deprecated the function
itself.

Insert(before, element) just calls InsertBefore, so no functional change.

net_interface & datalink: Fix MTU handling.

The device is what actually controls the MTU, and it has its own
field for this, so having a second one just meant the MTU never
got updated after startup.

Remove the "mtu" field from the interface, use the "device->mtu" directly,
and then actually invoke device->module->set_mtu when updating.

ipv4: reenable multicast

tested between two Haiku VMs with iperf.

Change-Id: Id9d3865f2c9f8ed6c79d0ece53f51c781c77b771
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3453
Reviewed-by: Rene Gollent <rene@gollent.com>
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>

ipv4 & ipv6: remove_trailer() uses a positive size as parameter

Change-Id: Id7d009cfee7727afb8267703c22c467e5f636070
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3438
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>

ipv4: fix 64-bit trace warnings

Change-Id: I4124c4fc5f4cf54369eeb08ee9d1fa70600a94e5
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3421
Reviewed-by: Rene Gollent <rene@gollent.com>

ipv4: restrict multicast socket options to raw und datagram streams

Change-Id: Id55cfa0266ba6754340bd1ce43e8016579bd7c45
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3420
Reviewed-by: Rene Gollent <rene@gollent.com>

ipv4: add getsockopt IP_MULTICAST_IF

also fix setsockopt

Change-Id: Idb8fafbe7aa9931af82ebccdc4d2e487f9c0eeb1
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3419
Reviewed-by: Rene Gollent <rene@gollent.com>

ipv4: add option for multicast_loopback

no effect, multicast is disabled anyway.

Change-Id: Ic7ca0d169dae5eb7cd34a658908eed5d0d149d08
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3417
Reviewed-by: Rene Gollent <rene@gollent.com>

ipv4: have IP_MULTICAST_TTL accept 1-byte buffers

this is a common length for this socket option. also denies values greater als 255.

Change-Id: I3d480444d655c41e76d3bbc6625f72c1c4eb3808
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3409
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>

ipv4: Fix PVS 2464

Fix using local variable within a loop with a same name
as a variable controlling this loop.

Change-Id: Ie920807a56e51b32844ac13ff1d8c564466d3a83
Reviewed-on: https://review.haiku-os.org/751
Reviewed-by: Adrien Destugues <pulkomandy@pulkomandy.tk>

ipv4/6: fixed crossing link fields from different hash tables.

Signed-off-by: Axel Dörfler <axeld@pinc-software.de>

Fix multicast double free issue in IPv4.

- IPv4 had the same problem as v6. Most likely this was an oversight
when converting from a C to a C++ module. Might help with #6736 and
#8894.

* Fixed a bug in deciding whether or not an IP level broadcast should be
accepted. This should have been the reason for Duggan's problem with DHCP
as part of bug #6454.
* Stippi's router seems to answer DHCP requests with broadcasts to the future
broadcast IP address. Luckily, it's also a link layer broadcast, so we let
the upper protocols decide what to do with it, depending on that; this could
also be done depending on the existence of any unconfigured networks.
* This should fix Stippi's DHCP problems, and therefore bug #6454 - in any
case, this will be the last try before my vacation :-)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38450 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Now sets the net_buffer::index field before forwarding a buffer to the next
layer.
* Converted the hash used to the BOpenHashTable instead of khash.
* Fixed remaining GCC4 warnings.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38391 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Now we should also support link layer and INADDR_BROADCAST broadcasts again
correctly.
* This should finally fix ticket #6454, but I keep it open until it's confirmed.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38365 a95241bf-73f2-0310-859d-f6bbb57e9c96

* IPv4 must always set the net_buffer::interface_address on incoming buffers; it
didn't do that for broadcasts - this is still not a full solution as it won't
work for link layer broadcasts, but this should fix most DHCP problems.
* IPv4 multicast doesn't do that yet.
* Only send ICMP errors if it hasn't been a link layer broadcast.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38356 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Fixed CID 1511: protocol could be NULL.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38193 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Automatic whitespace cleanup, no functional change.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38119 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Further improved debug output.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37938 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Finished groundwork on ICMP by introducing a completely protocol agnostic
error mechanism.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37896 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Renamed net_datalink_module::send_data() to send_routed_data(), and
send_datagram() to send_data().
* Renamed DatagramSocket::SocketEnqueue() to EnqueueClone(), SocketDequeue()
to Dequeue().
* Ordered the methods in ProtocolUtilities.h according to their declaration.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37870 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Replaced more occurences of EOPNOTSUPP with B_NOT_SUPPORTED.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37847 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Only allow raw sockets for root.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37843 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Replaced ENODEV with B_DEVICE_NOT_FOUND.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37803 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Reworked the complete stack to allow more than one address per network
interface - this caused quite a number of changes.
* Network interfaces, and its addresses are now reference counted (not yet
complete, though, InterfaceAddresses need to hold references to their
interface as well).
* There are two known regressions of this commit that I will fix later:
- you cannot remove interfaces anymore
- IPv4 multicast was broken anyway, but now it's disabled, too.
* Moved a device_interfaces.cpp|h out of interfaces.cpp.
* The datalink layer chain is now instantiated per domain per interface,
not just per interface anymore.
* When a buffer reaches the network layer, it has no known interface yet, ie.
the ipv4|6|whatever modules need to set this manually.
* Added more debug output, and some new debugger commands, the control option
is now printed in clear text.
* Added hash_address() function to the address modules. Added "const" to
set_to_defaults() where needed.
* Fixed net_buffer's restore header functions offset use as reported by Atis.
* Improved buffer dump output, use the domain module to print the address if
available.
* Moved net_buffer::type into the union, as it's not needed by the upper layers
anymore.
* Moved IPv6 specific code from {add|remove}_default_route() to where it
belongs, but disabled it for the time being.
* Completely discarded useless ipv4_datagram module.
* Added ping6 to the build.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37794 a95241bf-73f2-0310-859d-f6bbb57e9c96

* ipv4_error_received() also needs to fill in the buffer's address, and
protocol, and cut off its IPv4 header before forwarding the buffer to the
upper layers.
* Some minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37711 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Implemented a way to preserve header data while passing along a buffer to the
upper layers: you use the store_header() function to mark the header you want
to preserve. All subsequent remove_header() calls won't claim the actual
data, but only move the node start around.
* This header can then be restored by restore_header(). However, a call to
prepend_data() will destroy the stored header. Also, if remove_header() cuts
off a whole node, restoring the header won't succeed anymore.
* Discarded the no longer needed net_buffer::network_header field.
* Also discarded the hoplimit field which temporarily breaks the IPv6 build
until Atis reworks it.
* IPv4 now also dumps the IP header in the send path if debug output is enabled.
* icmp_error_reply() might be called so early that the net_buffer's addresses
do not point to the reply address; this is now detected, and the addresses are
taken out of the IP header in that case.
* Improved dumping the net_buffer to also include its address, and flags.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37688 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Improved debug output; ipv4 will now dump the whole header if TRACE_IPV4 is defined.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37661 a95241bf-73f2-0310-859d-f6bbb57e9c96

* ICMP now removes its header before passing the error on to the upper levels.
* Therefore, IPv4 no longer needs to mess with that (incorrectly, anyway).
* Removed unused include, turned off ICMP debug output.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37650 a95241bf-73f2-0310-859d-f6bbb57e9c96

* deliver_multicast() now returns whether or not it delivered the buffer,
instead of always returning B_OK.
* deliver_multicast() now takes the protocol restriction of a raw socket into
account.
* raw_receive_data() now correctly returns whether a buffer was delivered (due
to the protocol restriction, this wasn't the case before).
* ipv4_receive_data() leaked all multicast buffers.
* Some minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37648 a95241bf-73f2-0310-859d-f6bbb57e9c96

* First part of ICMP support: this is based on the work by Ivo Vachkov (GSoC
2007), and Yin Qiu (GSoC 2008). And even though I needed to rewrite pretty
much all of it because of the countless bugs and problems it had, it still
shares the same architectural problems of introducing a domain dependent
error mechanism to the upper layers, and needing the
net_buffer::network_header hack. This I will rework later.
* net_buffer's append_size(), and prepend_size() will now gracefully handle
buffers without a data node.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37647 a95241bf-73f2-0310-859d-f6bbb57e9c96

Work in progress commit by Atis Elsts (I'm posting his ChangeLog comments
directly here), I made only a few style changes:
* introduced 'has_broadcast_address' field in
struct net_address_module_info
- REVIEW: the name, and the status of this field for UNIX and L2CAP
families
* ipv6 address family support
* ipv6 address printing
* ipv6 protocol support
* ipv6 multicast support
- TODO: add and remove multicast routes in a more proper way
- TODO: support MLD
* ipv6 datalink protocol support
* icmpv6 protocol support (EchoRequest and EchoResponse messages)
* ipv6 neigbor discovery protocol support
(Advertisement and Solicitation messages)
- TODO: only the very basic support is present,
the protocol state machine is by no means completed
- TODO: replying to Solicitation does not work too good ATM
(visible, when pinging Haiku from outside)
* added Jenkin's hash algorith
* minor changes in existing IPv4 code - cleanup function
ipv4_get_loopback_address(), written by myself
* add tests: raw, udp, tcp/udp, mullicast sender
* add 'hoplimit' field in struct net_buffer
- TODO: this is just a hack, more generic approach would be better.
* add 'receive_data' function pointer in
struct net_datalink_protocol_module_info
- TODO: this is also more like a hack, to support information
passing from ICMPv6 to IPv6_datagram level.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37604 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Fixed build with tracing turned on.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35072 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Removed the interface fallback from the datalink module's is_local_address().
* Instead, added a new function is_local_link_address() which returns the
interface with the matching link level address, and can additionally test
for unconfigured interfaces.
* Merged the two versions of fill_sockaddr_in() together in ipv4.cpp.
* ipv4 now uses the new is_local_link_address() function to figure out whether
the received packet should be processed or not. This should fix a few DHCP
issues with multiple and configured interfaces as recently explained on the
mailing list.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34466 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Cleanup, looks better this way.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33909 a95241bf-73f2-0310-859d-f6bbb57e9c96

* "next" & "previous" could be NULL, but were still referenced - based on
Oliver's patch for bug #4896 which this one fixes.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33908 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/util/OpenHashTable.h, Hugo's version, is a bit nicer than
Tracker's OpenHashTable.h which it should eventually replace. We've renamed the
class to BOpenHashTable and changed the interface slightly so that HashTableLink
became superfluous.
Adapted all the code that used it. Since the OpenHashTables no longer clash,
this should fix the GCC4 build.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31791 a95241bf-73f2-0310-859d-f6bbb57e9c96

Applied patch by Ma Jie adding functionality needed by mDNSResponder:
* added new protocol method process_ancillary_data_no_container() that does not
need a container to fill the cmsghdr data.
* Added support for the IP_RECVDSTADDR option using this call.
* Implemented support for IP_MULTICAST_IF.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31585 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Fixed getsockopt(), patch by Ma Jie - it would always assume IP_MULTICAST_TTL.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31396 a95241bf-73f2-0310-859d-f6bbb57e9c96

* DatagramSocket::InitCheck() returned the sem_id instead of a status_t, causing
pings to fail (raw socket initialization) after r31079.
* Further cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31238 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31079 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added missing hooks with a description of what's missing for clarity.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31077 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Fixed incorrect use of IN_MULTICAST in ipv4: the macro must be invoked
on an address in host-byte-order, not network-byte-order.
Basically this caused failure for all IP-traffic to any IP-address
where the last byte & 0xF0 == 0xe0.
Now we can surf www.pcre.org again ;-)

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30870 a95241bf-73f2-0310-859d-f6bbb57e9c96

* fixed sending of IP-level broadcasts

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27997 a95241bf-73f2-0310-859d-f6bbb57e9c96

* replaced a couple of unconditional dprintf()s with TRACEs

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26517 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Replaced the useless InitCheck() method in {Open,Multi}HashTable (it
always returned B_OK) by a Init() method, which sets the initial size
and returns an error, if that fails.
* Adjusted code using the classes accordingly. Replaced a few
InitCheck() methods in the network code by Init().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26127 a95241bf-73f2-0310-859d-f6bbb57e9c96

Patch by Vasilis Kaoutsis:
* FragmentPacket::Reassemble() would return NULL instead of an error when the
packet was not yet complete.
* This didn't have any actual consequences, though, as Reassemble() was only
called for a complete fragment set.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25758 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Replaced all instances of benaphores in the kernel code by mutexes.
* Removed kernel benaphores.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25690 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added flags field in net_protocol_module_info; there is currently a single
defined flag: NET_PROTOCOL_ATOMIC_MESSAGES.
* socket_send() now honours NET_PROTOCOL_ATOMIC_MESSAGES and returns either
EMSGSIZE if the data to be send is larger than net_socket::send::buffer_size,
or divides the data in appropriately sized chunks.
* This fixes sending >=64K over a TCP socket at once (TCP would just have
returned an error in that case).
* TCP now overrides the default send buffer size (to 32768 for now).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23915 a95241bf-73f2-0310-859d-f6bbb57e9c96

IPv4 now uses module_dependencies, it mustn't put the stack module manually anymore.
This fixes unloading of the stack (some fixes to the module code that let you
determine this kind of bugs earlier will be committed next).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21798 a95241bf-73f2-0310-859d-f6bbb57e9c96

axeld+bonefish: Got rid of the ParentType in the HashTableDefinition; it doesn't really
belong there.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21766 a95241bf-73f2-0310-859d-f6bbb57e9c96

net_buffer: preparing for better metadata management


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21210 a95241bf-73f2-0310-859d-f6bbb57e9c96

when 0 is specified as the interface index with the generic multicast delta API, the stack should select an interface for the application.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20967 a95241bf-73f2-0310-859d-f6bbb57e9c96

also dump filter mode and sources in 'ipv4_multicast'.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20966 a95241bf-73f2-0310-859d-f6bbb57e9c96

select the default interface to be used for multicast through a routing table query.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20952 a95241bf-73f2-0310-859d-f6bbb57e9c96

added a ValueIterator to MultiHashTable to present a limited view in result of Lookup()s.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20946 a95241bf-73f2-0310-859d-f6bbb57e9c96

prepared the ipv4 multicast code for full multicast support.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20945 a95241bf-73f2-0310-859d-f6bbb57e9c96

some getsockopt/setsockopt and multicast fixes.

* allow an ipv4 bind() to a multicast address.
* bumped getsockopt/setsockopt kernel driver buffers to 256 bytes to at least handle structures which take one sockaddr_storage.
* convert generic multicast delta API names to IPv4 ones before handling the specific option.
* changed ipv4_getsockopt/ipv4_setsockopt a bit as the code gcc 2.95 was generating was a bit too funky.
* properly pass setsockopt/getsockopt to handling protocols.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20939 a95241bf-73f2-0310-859d-f6bbb57e9c96

added 'ipv4_multicast' debugger command.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20922 a95241bf-73f2-0310-859d-f6bbb57e9c96

ipv4: changed the multicast filter to use an hash table to keep source states.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20920 a95241bf-73f2-0310-859d-f6bbb57e9c96

use OpenHashTable in IPv4's MulticastGroups.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20910 a95241bf-73f2-0310-859d-f6bbb57e9c96

partially rewrote TCP's endpoint manager. Fixes #1173


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20814 a95241bf-73f2-0310-859d-f6bbb57e9c96

retrieve the incoming interface on the domain_receive_adapter(). This should fix potential issues with packets addressed to the IP broadcast address, such as in with some DHCP implementations.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20767 a95241bf-73f2-0310-859d-f6bbb57e9c96

some internal reorganization of getsockopt()/setsockopt() handling. TCP is now able to fully use the application requested sender/receiver buffer sizes for improved performance.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20764 a95241bf-73f2-0310-859d-f6bbb57e9c96

introduced datalink's send_datagram to perform route and source address selection and dispatch the datagram to appropriate domain/protocol.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20714 a95241bf-73f2-0310-859d-f6bbb57e9c96

fixed the reception of multicast frames by RAW sockets.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20696 a95241bf-73f2-0310-859d-f6bbb57e9c96

glued the multicast filter handling to the receive path: we are now capable of receiving multicast frames in datagram sockets.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20695 a95241bf-73f2-0310-859d-f6bbb57e9c96

made UDP's send_data call into IPv4's, so we can handle of the datagram stuff in one place.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20694 a95241bf-73f2-0310-859d-f6bbb57e9c96

made IPv4's send path be multicast aware.

- also added IP_MULTICAST_TTL support.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20693 a95241bf-73f2-0310-859d-f6bbb57e9c96

initial IPv4 multicast receive path.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20692 a95241bf-73f2-0310-859d-f6bbb57e9c96

support RFC 3678's Protocol-Independent setsockopt()s for IPv4 multicast.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20691 a95241bf-73f2-0310-859d-f6bbb57e9c96

initial steps towards IPv4 Multicast Filter Delta API (RFC 3678)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20690 a95241bf-73f2-0310-859d-f6bbb57e9c96

respect SO_BROADCAST for received and sent datagrams.

- check if the destination address is specified in IPv4's SendData()
- minor cleanups to IPv4's TRACE()s.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20681 a95241bf-73f2-0310-859d-f6bbb57e9c96

use module_dependencies to load the required modules by udp, tcp, ipv4, icmp and arp.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20676 a95241bf-73f2-0310-859d-f6bbb57e9c96

only deliver frames to IPv4 raw sockets of the specified protocol.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20675 a95241bf-73f2-0310-859d-f6bbb57e9c96

added buffer, datalink and socket module references to the stack module so we don't have to load them in each other module.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20673 a95241bf-73f2-0310-859d-f6bbb57e9c96

introduced a new helper class DatagramSocket which provides a consistent base interface and functionality for the implementation of datagram-based sockets.

- made the ipv4 raw, udp and link protocols use DatagramSocket.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20672 a95241bf-73f2-0310-859d-f6bbb57e9c96

moved address selection logic to a new 'get_buffer_route'.

- IPv4 now assumes the addresses it is supplied in send_routed_data are already the appropriate ones.
- made the Data(), operator* and operator-> methods in NetBufferFieldReader const so we can use them in the same expression as the constructor.
- fixed an issue with UDP where the wrong source address could be used in the calculating the checksum.
- changed ipv4_print_address to use the more common 0.0.0.0 format.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20660 a95241bf-73f2-0310-859d-f6bbb57e9c96

some NetBufferUtility revamp.

- introduced base NetBufferFieldReader which deals with obtaining a continuguous field to deal with.
- renamed Detach() to Sync() to better express the fact that we may be writing to the buffer.
- Fixed IPv4's and ICMP's checksum calculation as it assumed the underlying header was contiguous.
- ICMP is now able to reply to ICMP Echo Requests which were split across data nodes.
- in split_buffer(), make sure we were able to trim() the new buffer before damaging the original one.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20657 a95241bf-73f2-0310-859d-f6bbb57e9c96

A couple more TCP fixes.

- ipv4_bind() was broken when binding to addresses not INADDR_ANY, as it wasn't copying the address to the socket, fixed.
- fixed a small issue in TCP's BindToEphemeral where the correct address might not have been bound to the socket.
- some assorted TCP wait lists fixes.
- fixed TCP's Connect() over the loopback interface, we might already be ESTABLISHED after _SendQueue() returns.
- fixed the amount of time we wait in TCP's Accept().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20629 a95241bf-73f2-0310-859d-f6bbb57e9c96

send buffer size is irrelevant for UDP, instead check if the fed buffer is larger than the maximum payload UDP supported. Do the same in IPV4.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20590 a95241bf-73f2-0310-859d-f6bbb57e9c96

introduced fifo_socket_enqueue_buffer which clones the buffer, enqueues it to the fifo and notifies the socket.

- changed the link, ipv4 and udp modules to use fifo_socket_enqueue_buffer


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20587 a95241bf-73f2-0310-859d-f6bbb57e9c96

properly support MSG_TRUNC. we don't even have to trim the buffer, just try to fill the user buffers as much as possible


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20582 a95241bf-73f2-0310-859d-f6bbb57e9c96

You also have to recompute the checksum in case the source address was updated,
patch by Hugo Santos.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20490 a95241bf-73f2-0310-859d-f6bbb57e9c96

* If the IP_HDRINCL option is used, ipv4_send_routed_data() now checks if the source
address is set, and changes this if not; this makes traceroute work on Haiku.
Patch by Hugo Santos.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20422 a95241bf-73f2-0310-859d-f6bbb57e9c96

Rearranged ipv4_control() a bit, and fixed a bug that would always return B_BAD_VALUE
on setsockopt() for all options. Thanks to Hugo Santos for pointing this out.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20421 a95241bf-73f2-0310-859d-f6bbb57e9c96

The IPv4 protocol now stores all domain receiving protocols, and only put them away on uninit.
This should speed up packet retrieval a lot.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19811 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added support for IP_TOS and IP_TTL options.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19673 a95241bf-73f2-0310-859d-f6bbb57e9c96

Calmed down the networking stack a lot - since it basically works, there is no
reason to slow it down with debug output that much; this will also help investigating
some issues where you just aren't interested in most of the output.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19672 a95241bf-73f2-0310-859d-f6bbb57e9c96

IPv4 send_routed_data() can now also work with a route whose address is NULL; this
is useful for bringing up (and using) an unconfigured interface. Specifically, DHCP
will be using this method to get the broadcast out.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19435 a95241bf-73f2-0310-859d-f6bbb57e9c96

Calmed down net_buffer and IPv4 a bit.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19429 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added an offset/sequence field to the net_buffer - this can and will be used
by the TCP implementation for its reorder and retransmit queues.
* The ipv4_fragment is no longer needed, as we can use the above field there
as well - this saves one extra allocation per received fragment.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19369 a95241bf-73f2-0310-859d-f6bbb57e9c96

Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19255 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Moved the TCPConnection class into its own file.
* Added some missing result checks, mostly for allocations.
* Fixed a wrong precendence with the ?: operator
* Some minor cleanup.
* Renamed sBufferModule to gBufferModule - the header expects it to be a global,
so it should be named like one.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19178 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Fragmenting IP packets is now working as expected (there were several bugs
in the code before).
* Added a SetTo() method to NetBufferHeader.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19069 a95241bf-73f2-0310-859d-f6bbb57e9c96

Implemented fragmenting IP packets - not yet tested, though.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19053 a95241bf-73f2-0310-859d-f6bbb57e9c96

Made the ipv4_send_routed_data() function a bit more safe to use (now checks if the
route passed in is valid).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19050 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Implemented select support for sockets and notifications, not yet tested, though;
this closes ticket #811.
* Added notification support to IPv4 and UDP.
* Implemented reading out SO_ERROR.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19017 a95241bf-73f2-0310-859d-f6bbb57e9c96

A few bugfixes to prepend_size and append_size so they don't create unnecessary empty nodes. Minor cleanup to ipv4.cpp.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18951 a95241bf-73f2-0310-859d-f6bbb57e9c96

various gcc 4 related build fixes


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18876 a95241bf-73f2-0310-859d-f6bbb57e9c96

Extra error checking in init

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18479 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Completed the previous commit and merger of the team/network/new_stack branch.
* Removed ppp_up and pppcontrol from the image for now.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18457 a95241bf-73f2-0310-859d-f6bbb57e9c96

Fix multicast double free issue in IPv4.

- IPv4 had the same problem as v6. Most likely this was an oversight
when converting from a C to a C++ module. Might help with #6736 and
#8894.

* Fixed a bug in deciding whether or not an IP level broadcast should be
accepted. This should have been the reason for Duggan's problem with DHCP
as part of bug #6454.
* Stippi's router seems to answer DHCP requests with broadcasts to the future
broadcast IP address. Luckily, it's also a link layer broadcast, so we let
the upper protocols decide what to do with it, depending on that; this could
also be done depending on the existence of any unconfigured networks.
* This should fix Stippi's DHCP problems, and therefore bug #6454 - in any
case, this will be the last try before my vacation :-)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38450 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Now sets the net_buffer::index field before forwarding a buffer to the next
layer.
* Converted the hash used to the BOpenHashTable instead of khash.
* Fixed remaining GCC4 warnings.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38391 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Now we should also support link layer and INADDR_BROADCAST broadcasts again
correctly.
* This should finally fix ticket #6454, but I keep it open until it's confirmed.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38365 a95241bf-73f2-0310-859d-f6bbb57e9c96

* IPv4 must always set the net_buffer::interface_address on incoming buffers; it
didn't do that for broadcasts - this is still not a full solution as it won't
work for link layer broadcasts, but this should fix most DHCP problems.
* IPv4 multicast doesn't do that yet.
* Only send ICMP errors if it hasn't been a link layer broadcast.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38356 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Fixed CID 1511: protocol could be NULL.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38193 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Automatic whitespace cleanup, no functional change.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38119 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Further improved debug output.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37938 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Finished groundwork on ICMP by introducing a completely protocol agnostic
error mechanism.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37896 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Renamed net_datalink_module::send_data() to send_routed_data(), and
send_datagram() to send_data().
* Renamed DatagramSocket::SocketEnqueue() to EnqueueClone(), SocketDequeue()
to Dequeue().
* Ordered the methods in ProtocolUtilities.h according to their declaration.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37870 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Replaced more occurences of EOPNOTSUPP with B_NOT_SUPPORTED.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37847 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Only allow raw sockets for root.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37843 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Replaced ENODEV with B_DEVICE_NOT_FOUND.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37803 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Reworked the complete stack to allow more than one address per network
interface - this caused quite a number of changes.
* Network interfaces, and its addresses are now reference counted (not yet
complete, though, InterfaceAddresses need to hold references to their
interface as well).
* There are two known regressions of this commit that I will fix later:
- you cannot remove interfaces anymore
- IPv4 multicast was broken anyway, but now it's disabled, too.
* Moved a device_interfaces.cpp|h out of interfaces.cpp.
* The datalink layer chain is now instantiated per domain per interface,
not just per interface anymore.
* When a buffer reaches the network layer, it has no known interface yet, ie.
the ipv4|6|whatever modules need to set this manually.
* Added more debug output, and some new debugger commands, the control option
is now printed in clear text.
* Added hash_address() function to the address modules. Added "const" to
set_to_defaults() where needed.
* Fixed net_buffer's restore header functions offset use as reported by Atis.
* Improved buffer dump output, use the domain module to print the address if
available.
* Moved net_buffer::type into the union, as it's not needed by the upper layers
anymore.
* Moved IPv6 specific code from {add|remove}_default_route() to where it
belongs, but disabled it for the time being.
* Completely discarded useless ipv4_datagram module.
* Added ping6 to the build.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37794 a95241bf-73f2-0310-859d-f6bbb57e9c96

* ipv4_error_received() also needs to fill in the buffer's address, and
protocol, and cut off its IPv4 header before forwarding the buffer to the
upper layers.
* Some minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37711 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Implemented a way to preserve header data while passing along a buffer to the
upper layers: you use the store_header() function to mark the header you want
to preserve. All subsequent remove_header() calls won't claim the actual
data, but only move the node start around.
* This header can then be restored by restore_header(). However, a call to
prepend_data() will destroy the stored header. Also, if remove_header() cuts
off a whole node, restoring the header won't succeed anymore.
* Discarded the no longer needed net_buffer::network_header field.
* Also discarded the hoplimit field which temporarily breaks the IPv6 build
until Atis reworks it.
* IPv4 now also dumps the IP header in the send path if debug output is enabled.
* icmp_error_reply() might be called so early that the net_buffer's addresses
do not point to the reply address; this is now detected, and the addresses are
taken out of the IP header in that case.
* Improved dumping the net_buffer to also include its address, and flags.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37688 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Improved debug output; ipv4 will now dump the whole header if TRACE_IPV4 is defined.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37661 a95241bf-73f2-0310-859d-f6bbb57e9c96

* ICMP now removes its header before passing the error on to the upper levels.
* Therefore, IPv4 no longer needs to mess with that (incorrectly, anyway).
* Removed unused include, turned off ICMP debug output.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37650 a95241bf-73f2-0310-859d-f6bbb57e9c96

* deliver_multicast() now returns whether or not it delivered the buffer,
instead of always returning B_OK.
* deliver_multicast() now takes the protocol restriction of a raw socket into
account.
* raw_receive_data() now correctly returns whether a buffer was delivered (due
to the protocol restriction, this wasn't the case before).
* ipv4_receive_data() leaked all multicast buffers.
* Some minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37648 a95241bf-73f2-0310-859d-f6bbb57e9c96

* First part of ICMP support: this is based on the work by Ivo Vachkov (GSoC
2007), and Yin Qiu (GSoC 2008). And even though I needed to rewrite pretty
much all of it because of the countless bugs and problems it had, it still
shares the same architectural problems of introducing a domain dependent
error mechanism to the upper layers, and needing the
net_buffer::network_header hack. This I will rework later.
* net_buffer's append_size(), and prepend_size() will now gracefully handle
buffers without a data node.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37647 a95241bf-73f2-0310-859d-f6bbb57e9c96

Work in progress commit by Atis Elsts (I'm posting his ChangeLog comments
directly here), I made only a few style changes:
* introduced 'has_broadcast_address' field in
struct net_address_module_info
- REVIEW: the name, and the status of this field for UNIX and L2CAP
families
* ipv6 address family support
* ipv6 address printing
* ipv6 protocol support
* ipv6 multicast support
- TODO: add and remove multicast routes in a more proper way
- TODO: support MLD
* ipv6 datalink protocol support
* icmpv6 protocol support (EchoRequest and EchoResponse messages)
* ipv6 neigbor discovery protocol support
(Advertisement and Solicitation messages)
- TODO: only the very basic support is present,
the protocol state machine is by no means completed
- TODO: replying to Solicitation does not work too good ATM
(visible, when pinging Haiku from outside)
* added Jenkin's hash algorith
* minor changes in existing IPv4 code - cleanup function
ipv4_get_loopback_address(), written by myself
* add tests: raw, udp, tcp/udp, mullicast sender
* add 'hoplimit' field in struct net_buffer
- TODO: this is just a hack, more generic approach would be better.
* add 'receive_data' function pointer in
struct net_datalink_protocol_module_info
- TODO: this is also more like a hack, to support information
passing from ICMPv6 to IPv6_datagram level.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37604 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Fixed build with tracing turned on.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35072 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Removed the interface fallback from the datalink module's is_local_address().
* Instead, added a new function is_local_link_address() which returns the
interface with the matching link level address, and can additionally test
for unconfigured interfaces.
* Merged the two versions of fill_sockaddr_in() together in ipv4.cpp.
* ipv4 now uses the new is_local_link_address() function to figure out whether
the received packet should be processed or not. This should fix a few DHCP
issues with multiple and configured interfaces as recently explained on the
mailing list.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34466 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Cleanup, looks better this way.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33909 a95241bf-73f2-0310-859d-f6bbb57e9c96

* "next" & "previous" could be NULL, but were still referenced - based on
Oliver's patch for bug #4896 which this one fixes.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33908 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/util/OpenHashTable.h, Hugo's version, is a bit nicer than
Tracker's OpenHashTable.h which it should eventually replace. We've renamed the
class to BOpenHashTable and changed the interface slightly so that HashTableLink
became superfluous.
Adapted all the code that used it. Since the OpenHashTables no longer clash,
this should fix the GCC4 build.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31791 a95241bf-73f2-0310-859d-f6bbb57e9c96

Applied patch by Ma Jie adding functionality needed by mDNSResponder:
* added new protocol method process_ancillary_data_no_container() that does not
need a container to fill the cmsghdr data.
* Added support for the IP_RECVDSTADDR option using this call.
* Implemented support for IP_MULTICAST_IF.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31585 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Fixed getsockopt(), patch by Ma Jie - it would always assume IP_MULTICAST_TTL.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31396 a95241bf-73f2-0310-859d-f6bbb57e9c96

* DatagramSocket::InitCheck() returned the sem_id instead of a status_t, causing
pings to fail (raw socket initialization) after r31079.
* Further cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31238 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31079 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added missing hooks with a description of what's missing for clarity.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31077 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Fixed incorrect use of IN_MULTICAST in ipv4: the macro must be invoked
on an address in host-byte-order, not network-byte-order.
Basically this caused failure for all IP-traffic to any IP-address
where the last byte & 0xF0 == 0xe0.
Now we can surf www.pcre.org again ;-)

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30870 a95241bf-73f2-0310-859d-f6bbb57e9c96

* fixed sending of IP-level broadcasts

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27997 a95241bf-73f2-0310-859d-f6bbb57e9c96

* replaced a couple of unconditional dprintf()s with TRACEs

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26517 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Replaced the useless InitCheck() method in {Open,Multi}HashTable (it
always returned B_OK) by a Init() method, which sets the initial size
and returns an error, if that fails.
* Adjusted code using the classes accordingly. Replaced a few
InitCheck() methods in the network code by Init().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26127 a95241bf-73f2-0310-859d-f6bbb57e9c96

Patch by Vasilis Kaoutsis:
* FragmentPacket::Reassemble() would return NULL instead of an error when the
packet was not yet complete.
* This didn't have any actual consequences, though, as Reassemble() was only
called for a complete fragment set.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25758 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Replaced all instances of benaphores in the kernel code by mutexes.
* Removed kernel benaphores.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25690 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added flags field in net_protocol_module_info; there is currently a single
defined flag: NET_PROTOCOL_ATOMIC_MESSAGES.
* socket_send() now honours NET_PROTOCOL_ATOMIC_MESSAGES and returns either
EMSGSIZE if the data to be send is larger than net_socket::send::buffer_size,
or divides the data in appropriately sized chunks.
* This fixes sending >=64K over a TCP socket at once (TCP would just have
returned an error in that case).
* TCP now overrides the default send buffer size (to 32768 for now).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23915 a95241bf-73f2-0310-859d-f6bbb57e9c96

IPv4 now uses module_dependencies, it mustn't put the stack module manually anymore.
This fixes unloading of the stack (some fixes to the module code that let you
determine this kind of bugs earlier will be committed next).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21798 a95241bf-73f2-0310-859d-f6bbb57e9c96

axeld+bonefish: Got rid of the ParentType in the HashTableDefinition; it doesn't really
belong there.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21766 a95241bf-73f2-0310-859d-f6bbb57e9c96

net_buffer: preparing for better metadata management


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21210 a95241bf-73f2-0310-859d-f6bbb57e9c96

when 0 is specified as the interface index with the generic multicast delta API, the stack should select an interface for the application.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20967 a95241bf-73f2-0310-859d-f6bbb57e9c96

also dump filter mode and sources in 'ipv4_multicast'.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20966 a95241bf-73f2-0310-859d-f6bbb57e9c96

select the default interface to be used for multicast through a routing table query.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20952 a95241bf-73f2-0310-859d-f6bbb57e9c96

added a ValueIterator to MultiHashTable to present a limited view in result of Lookup()s.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20946 a95241bf-73f2-0310-859d-f6bbb57e9c96

prepared the ipv4 multicast code for full multicast support.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20945 a95241bf-73f2-0310-859d-f6bbb57e9c96

some getsockopt/setsockopt and multicast fixes.

* allow an ipv4 bind() to a multicast address.
* bumped getsockopt/setsockopt kernel driver buffers to 256 bytes to at least handle structures which take one sockaddr_storage.
* convert generic multicast delta API names to IPv4 ones before handling the specific option.
* changed ipv4_getsockopt/ipv4_setsockopt a bit as the code gcc 2.95 was generating was a bit too funky.
* properly pass setsockopt/getsockopt to handling protocols.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20939 a95241bf-73f2-0310-859d-f6bbb57e9c96

added 'ipv4_multicast' debugger command.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20922 a95241bf-73f2-0310-859d-f6bbb57e9c96

ipv4: changed the multicast filter to use an hash table to keep source states.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20920 a95241bf-73f2-0310-859d-f6bbb57e9c96

use OpenHashTable in IPv4's MulticastGroups.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20910 a95241bf-73f2-0310-859d-f6bbb57e9c96

partially rewrote TCP's endpoint manager. Fixes #1173


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20814 a95241bf-73f2-0310-859d-f6bbb57e9c96

retrieve the incoming interface on the domain_receive_adapter(). This should fix potential issues with packets addressed to the IP broadcast address, such as in with some DHCP implementations.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20767 a95241bf-73f2-0310-859d-f6bbb57e9c96

some internal reorganization of getsockopt()/setsockopt() handling. TCP is now able to fully use the application requested sender/receiver buffer sizes for improved performance.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20764 a95241bf-73f2-0310-859d-f6bbb57e9c96

introduced datalink's send_datagram to perform route and source address selection and dispatch the datagram to appropriate domain/protocol.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20714 a95241bf-73f2-0310-859d-f6bbb57e9c96

fixed the reception of multicast frames by RAW sockets.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20696 a95241bf-73f2-0310-859d-f6bbb57e9c96

glued the multicast filter handling to the receive path: we are now capable of receiving multicast frames in datagram sockets.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20695 a95241bf-73f2-0310-859d-f6bbb57e9c96

made UDP's send_data call into IPv4's, so we can handle of the datagram stuff in one place.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20694 a95241bf-73f2-0310-859d-f6bbb57e9c96

made IPv4's send path be multicast aware.

- also added IP_MULTICAST_TTL support.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20693 a95241bf-73f2-0310-859d-f6bbb57e9c96

initial IPv4 multicast receive path.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20692 a95241bf-73f2-0310-859d-f6bbb57e9c96

support RFC 3678's Protocol-Independent setsockopt()s for IPv4 multicast.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20691 a95241bf-73f2-0310-859d-f6bbb57e9c96

initial steps towards IPv4 Multicast Filter Delta API (RFC 3678)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20690 a95241bf-73f2-0310-859d-f6bbb57e9c96

respect SO_BROADCAST for received and sent datagrams.

- check if the destination address is specified in IPv4's SendData()
- minor cleanups to IPv4's TRACE()s.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20681 a95241bf-73f2-0310-859d-f6bbb57e9c96

use module_dependencies to load the required modules by udp, tcp, ipv4, icmp and arp.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20676 a95241bf-73f2-0310-859d-f6bbb57e9c96

only deliver frames to IPv4 raw sockets of the specified protocol.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20675 a95241bf-73f2-0310-859d-f6bbb57e9c96

added buffer, datalink and socket module references to the stack module so we don't have to load them in each other module.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20673 a95241bf-73f2-0310-859d-f6bbb57e9c96

introduced a new helper class DatagramSocket which provides a consistent base interface and functionality for the implementation of datagram-based sockets.

- made the ipv4 raw, udp and link protocols use DatagramSocket.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20672 a95241bf-73f2-0310-859d-f6bbb57e9c96

moved address selection logic to a new 'get_buffer_route'.

- IPv4 now assumes the addresses it is supplied in send_routed_data are already the appropriate ones.
- made the Data(), operator* and operator-> methods in NetBufferFieldReader const so we can use them in the same expression as the constructor.
- fixed an issue with UDP where the wrong source address could be used in the calculating the checksum.
- changed ipv4_print_address to use the more common 0.0.0.0 format.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20660 a95241bf-73f2-0310-859d-f6bbb57e9c96

some NetBufferUtility revamp.

- introduced base NetBufferFieldReader which deals with obtaining a continuguous field to deal with.
- renamed Detach() to Sync() to better express the fact that we may be writing to the buffer.
- Fixed IPv4's and ICMP's checksum calculation as it assumed the underlying header was contiguous.
- ICMP is now able to reply to ICMP Echo Requests which were split across data nodes.
- in split_buffer(), make sure we were able to trim() the new buffer before damaging the original one.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20657 a95241bf-73f2-0310-859d-f6bbb57e9c96

A couple more TCP fixes.

- ipv4_bind() was broken when binding to addresses not INADDR_ANY, as it wasn't copying the address to the socket, fixed.
- fixed a small issue in TCP's BindToEphemeral where the correct address might not have been bound to the socket.
- some assorted TCP wait lists fixes.
- fixed TCP's Connect() over the loopback interface, we might already be ESTABLISHED after _SendQueue() returns.
- fixed the amount of time we wait in TCP's Accept().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20629 a95241bf-73f2-0310-859d-f6bbb57e9c96

send buffer size is irrelevant for UDP, instead check if the fed buffer is larger than the maximum payload UDP supported. Do the same in IPV4.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20590 a95241bf-73f2-0310-859d-f6bbb57e9c96

introduced fifo_socket_enqueue_buffer which clones the buffer, enqueues it to the fifo and notifies the socket.

- changed the link, ipv4 and udp modules to use fifo_socket_enqueue_buffer


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20587 a95241bf-73f2-0310-859d-f6bbb57e9c96

properly support MSG_TRUNC. we don't even have to trim the buffer, just try to fill the user buffers as much as possible


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20582 a95241bf-73f2-0310-859d-f6bbb57e9c96

You also have to recompute the checksum in case the source address was updated,
patch by Hugo Santos.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20490 a95241bf-73f2-0310-859d-f6bbb57e9c96

* If the IP_HDRINCL option is used, ipv4_send_routed_data() now checks if the source
address is set, and changes this if not; this makes traceroute work on Haiku.
Patch by Hugo Santos.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20422 a95241bf-73f2-0310-859d-f6bbb57e9c96

Rearranged ipv4_control() a bit, and fixed a bug that would always return B_BAD_VALUE
on setsockopt() for all options. Thanks to Hugo Santos for pointing this out.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20421 a95241bf-73f2-0310-859d-f6bbb57e9c96

The IPv4 protocol now stores all domain receiving protocols, and only put them away on uninit.
This should speed up packet retrieval a lot.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19811 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added support for IP_TOS and IP_TTL options.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19673 a95241bf-73f2-0310-859d-f6bbb57e9c96

Calmed down the networking stack a lot - since it basically works, there is no
reason to slow it down with debug output that much; this will also help investigating
some issues where you just aren't interested in most of the output.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19672 a95241bf-73f2-0310-859d-f6bbb57e9c96

IPv4 send_routed_data() can now also work with a route whose address is NULL; this
is useful for bringing up (and using) an unconfigured interface. Specifically, DHCP
will be using this method to get the broadcast out.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19435 a95241bf-73f2-0310-859d-f6bbb57e9c96

Calmed down net_buffer and IPv4 a bit.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19429 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added an offset/sequence field to the net_buffer - this can and will be used
by the TCP implementation for its reorder and retransmit queues.
* The ipv4_fragment is no longer needed, as we can use the above field there
as well - this saves one extra allocation per received fragment.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19369 a95241bf-73f2-0310-859d-f6bbb57e9c96

Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19255 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Moved the TCPConnection class into its own file.
* Added some missing result checks, mostly for allocations.
* Fixed a wrong precendence with the ?: operator
* Some minor cleanup.
* Renamed sBufferModule to gBufferModule - the header expects it to be a global,
so it should be named like one.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19178 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Fragmenting IP packets is now working as expected (there were several bugs
in the code before).
* Added a SetTo() method to NetBufferHeader.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19069 a95241bf-73f2-0310-859d-f6bbb57e9c96

Implemented fragmenting IP packets - not yet tested, though.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19053 a95241bf-73f2-0310-859d-f6bbb57e9c96

Made the ipv4_send_routed_data() function a bit more safe to use (now checks if the
route passed in is valid).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19050 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Implemented select support for sockets and notifications, not yet tested, though;
this closes ticket #811.
* Added notification support to IPv4 and UDP.
* Implemented reading out SO_ERROR.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19017 a95241bf-73f2-0310-859d-f6bbb57e9c96

A few bugfixes to prepend_size and append_size so they don't create unnecessary empty nodes. Minor cleanup to ipv4.cpp.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18951 a95241bf-73f2-0310-859d-f6bbb57e9c96

various gcc 4 related build fixes


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18876 a95241bf-73f2-0310-859d-f6bbb57e9c96

Extra error checking in init

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18479 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Completed the previous commit and merger of the team/network/new_stack branch.
* Removed ppp_up and pppcontrol from the image for now.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18457 a95241bf-73f2-0310-859d-f6bbb57e9c96