25 May, 2019
1 commit
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While it can be slightly beneficial for the build performance to use
forward declarations instead of includes, the handling of them together
with changes in the included headers makes it unnecessary complicated and
fragile. Just replace them with actual includes since some parts (hwmon,
..) of the kernel even request avoidance of forward declarations and net/
is mostly not using them in *.c file.Signed-off-by: Sven Eckelmann
Signed-off-by: Simon Wunderlich
25 Mar, 2019
1 commit
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All files got a SPDX-License-Identifier with commit 7db7d9f369a4
("batman-adv: Add SPDX license identifier above copyright header"). All the
required information about the license conditions can be found in
LICENSES/.Signed-off-by: Sven Eckelmann
Signed-off-by: Simon Wunderlich
04 Jan, 2019
1 commit
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Signed-off-by: Sven Eckelmann
Signed-off-by: Simon Wunderlich
27 Feb, 2018
1 commit
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Signed-off-by: Sven Eckelmann
Signed-off-by: Simon Wunderlich
16 Dec, 2017
1 commit
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The "Linux kernel licensing rules" require that each file has a SPDX
license identifier as first line (and sometimes as second line).The FSFE REUSE practices [1] would also require the same tags but have no
restrictions on the placement in the source file. Using the "Linux kernel
licensing rules" is therefore also fulfilling the FSFE REUSE practices
requirements at the same time.[1] https://reuse.software/practices/
Signed-off-by: Sven Eckelmann
Signed-off-by: Simon Wunderlich
26 Jan, 2017
1 commit
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Signed-off-by: Sven Eckelmann
Signed-off-by: Simon Wunderlich
10 May, 2016
1 commit
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It is easier to understand that the returned value of a specific function
doesn't have to be 0 when the functions was successful when the actual
return type is bool. This is especially true when all surrounding functions
with return type int use negative values to return the error code.Reported-by: Nicholas Krause
Signed-off-by: Sven Eckelmann
Signed-off-by: Marek Lindner
Signed-off-by: Antonio Quartulli
10 Feb, 2016
1 commit
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To allow future use of the window protected function with different
maximum sequence numbers, add a parameter to set this value which
was previously hardcoded. Another parameter added for future use is a
flag to return whether the protection window has started.While at it, also fix the kerneldoc.
Signed-off-by: Simon Wunderlich
Signed-off-by: Marek Lindner
Signed-off-by: Antonio Quartulli
02 Feb, 2016
1 commit
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Signed-off-by: Sven Eckelmann
Signed-off-by: Marek Lindner
Signed-off-by: Antonio Quartulli
25 Aug, 2015
2 commits
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main.h is included in every file and is the only way to access types.h.
This makes forward declarations for all types defined in types.h
unnecessary.Signed-off-by: Sven Eckelmann
Signed-off-by: Marek Lindner
Signed-off-by: Antonio Quartulli -
(s|u)(8|16|32|64) are the preferred types in the kernel. The use of the
standard C99 types u?int(8|16|32|64)_t are objected by some people and even
checkpatch now warns about using them.Signed-off-by: Sven Eckelmann
Signed-off-by: Marek Lindner
Signed-off-by: Antonio Quartulli
07 Jun, 2015
1 commit
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The header files could not be build indepdent from each other. This is
happened because headers didn't include the files for things they've used.
This was problematic because the success of a build depended on the
knowledge about the right order of local includes.Also source files were not including everything they've used explicitly.
Instead they required that transitive includes are always stable. This is
problematic because some transitive includes are not obvious, depend on
config settings and may not be stable in the future.The order for include blocks are:
* primary headers (main.h and the *.h file of a *.c file)
* global linux headers
* required local headers
* extra forward declarations for pointers in function/struct declarationsThe only exceptions are linux/bitops.h and linux/if_ether.h in packet.h.
This header file is shared with userspace applications like batctl and must
therefore build together with userspace applications. The header
linux/bitops.h is not part of the uapi headers and linux/if_ether.h
conflicts with the musl implementation of netinet/if_ether.h. The
maintainers rejected the use of __KERNEL__ preprocessor checks and thus
these two headers are only in main.h. All files using packet.h first have
to include main.h to work correctly.Reported-by: Markus Pargmann
Signed-off-by: Sven Eckelmann
Signed-off-by: Marek Lindner
29 May, 2015
1 commit
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Signed-off-by: Sven Eckelmann
Signed-off-by: Marek Lindner
12 Jan, 2014
4 commits
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Signed-off-by: Simon Wunderlich
Signed-off-by: Marek Lindner
Signed-off-by: Antonio Quartulli -
With the new interface alternating, the first hop may send packets
in a round robin fashion to it's neighbors because it has multiple
valid routes built by the multi interface optimization. This patch
enables the feature if bonding is selected. Note that unlike the
bonding implemented before, this version is much simpler and may
even enable multi path routing to a certain degree.Signed-off-by: Simon Wunderlich
Signed-off-by: Marek Lindner
Signed-off-by: Antonio Quartulli -
For the network wide multi interface optimization there are different
routers for each outgoing interface (outgoing from the OGM perspective,
incoming for payload traffic). To reflect this, change the router and
associated data to a list of routers.While at it, rename batadv_orig_node_get_router() to
batadv_orig_router_get() to follow the new naming scheme.Signed-off-by: Simon Wunderlich
Signed-off-by: Marek Lindner
Signed-off-by: Antonio Quartulli -
Remove bonding and interface alternating code - it will be replaced
by a new, network-wide multi interface optimization which enables
both bonding and interface alternating in a better way.Keep the sysfs and find router function though, this will be needed
later.Signed-off-by: Simon Wunderlich
Signed-off-by: Marek Lindner
Signed-off-by: Antonio Quartulli
09 Jan, 2014
1 commit
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As suggested by checkpatch, remove all the references to the
FSF address since the kernel already has one reference in
its documentation.In this way it is easier to update it in case of future
changes.Signed-off-by: Antonio Quartulli
Signed-off-by: Marek Lindner
23 Oct, 2013
1 commit
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Signed-off-by: Antonio Quartulli
Signed-off-by: Marek Lindner
12 Oct, 2013
2 commits
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Fragments arriving at their destination are buffered for later merge.
Merged packets are passed to the main receive function as had they never
been fragmented.Fragments are forwarded without merging if the MTU of the outgoing
interface is smaller than the size of the merged packet.Signed-off-by: Martin Hundebøll
Signed-off-by: Marek Lindner
Signed-off-by: Antonio Quartulli -
Remove the existing fragmentation code before adding the new version
and delete unicast.{h,c}.batadv_unicast_send_skb() is moved to send.c and renamed to
batadv_send_skb_unicast().fragmentation entry in sysfs (bat_priv->fragmentation) is kept for use in
the new fragmentation code.BATADV_UNICAST_FRAG packet type is renamed to BATADV_FRAG for use in the
new fragmentation code.Signed-off-by: Martin Hundebøll
Signed-off-by: Marek Lindner
Signed-off-by: Antonio Quartulli
10 Oct, 2013
3 commits
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Reordering the packet type numbers allows us to handle unicast
packets in a general way - even if we don't know the specific packet
type, we can still forward it. There was already code handling
this for a couple of unicast packets, and this is the more
generalized version to do that.Signed-off-by: Simon Wunderlich
Signed-off-by: Marek Lindner
Signed-off-by: Antonio Quartulli -
This is replaced by a userspace program, we don't need this
functionality to bloat the kernel.Signed-off-by: Simon Wunderlich
Signed-off-by: Marek Lindner
Signed-off-by: Antonio Quartulli -
The goal is to provide the infrastructure for sending, receiving and
parsing information 'containers' while preserving backward
compatibility. TVLV (based on the commonly known Type Length Value
technique) was chosen as the format for those containers. Even if a
node does not know the tvlv type of a certain container it can simply
skip the current container and proceed with the next. Past experience
has shown features evolve over time, so a 'version' field was added
right from the start to allow differentiating between feature
variants - hence the name: T(ype) V(ersion) L(ength) V(alue).This patch introduces the basic TVLV infrastructure:
* register / unregister tvlv containers to be sent with each OGM
(on primary interfaces only)
* register / unregister callback handlers to be called upon
finding the corresponding tvlv type in a tvlv buffer
* unicast tvlv send / receive API callsSigned-off-by: Marek Lindner
Signed-off-by: Spyros Gasteratos
Signed-off-by: Antonio Quartulli
29 May, 2013
1 commit
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batadv_slide_own_bcast_window() is used only in bat_iv_ogm.c
and it is currently touching only batman_iv specific
attributes.Move it into bat_iv_ogm.c and make it static.
Signed-off-by: Antonio Quartulli
Signed-off-by: Marek Lindner
19 Jan, 2013
1 commit
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Signed-off-by: Antonio Quartulli
Signed-off-by: Marek Lindner
02 Jul, 2012
2 commits
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Reported-by: Martin Hundebøll
Signed-off-by: Sven Eckelmann -
Reported-by: Martin Hundebøll
Signed-off-by: Sven Eckelmann
21 Jun, 2012
2 commits
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batman-adv doesn't follow the style for multiline comments that David S. Miller
prefers. All comments should be reformatted to follow this consistent style to
make the code slightly more readable.Signed-off-by: Sven Eckelmann
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batman-adv can be compiled as part of the kernel instead of an module. In that
case the linker will see all non-static symbols of batman-adv and all other
non-static symbols of the kernel. This could lead to symbol collisions. A
prefix for the batman-adv symbols that defines their private namespace avoids
such a problem.Reported-by: David Miller
Signed-off-by: Sven Eckelmann
11 May, 2012
1 commit
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The B.A.T.M.A.N. IV OGM receive function still was hard-coded although
it is a routing protocol specific function. This patch takes advantage
of the dynamic packet handler registration to remove the hard-coded
function calls.Signed-off-by: Marek Lindner
Acked-by: Simon Wunderlich
Signed-off-by: Antonio Quartulli
11 Apr, 2012
1 commit
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The functionality is to be replaced by an improved implementation,
so first clean up.Signed-off-by: Simon Wunderlich
Signed-off-by: Antonio Quartulli
17 Feb, 2012
1 commit
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Signed-off-by: Sven Eckelmann
Signed-off-by: Marek Lindner
08 Sep, 2011
2 commits
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In preparation of the upcoming improved routing algorithm the code based has
to be re-organized to allow choosing the routing algorithm at compile time.Signed-off-by: Marek Lindner
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The follow-up routing code changes are going to introduce additional
routing packet types which make this distinction necessary.Signed-off-by: Marek Lindner
20 Jun, 2011
2 commits
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With the current client announcement implementation, in case of roaming,
an update is triggered on the new AP serving the client. At that point
the new information is spread around by means of the OGM broadcasting
mechanism. Until this operations is not executed, no node is able to
correctly route traffic towards the client. This obviously causes packet
drops and introduces a delay in the time needed by the client to recover
its connections.A new packet type called ROAMING_ADVERTISEMENT is added to account this
issue.This message is sent in case of roaming from the new AP serving the
client to the old one and will contain the client MAC address. In this
way an out-of-OGM update is immediately committed, so that the old node
can update its global translation table. Traffic reaching this node will
then be redirected to the correct destination utilising the fresher
information. Thus reducing the packet drops and the connection recovery
delay.Signed-off-by: Antonio Quartulli
Signed-off-by: Sven Eckelmann -
The client announcement mechanism informs every mesh node in the network
of any connected non-mesh client, in order to find the path towards that
client from any given point in the mesh.The old implementation was based on the simple idea of appending a data
buffer to each OGM containing all the client MAC addresses the node is
serving. All other nodes can populate their global translation tables
(table which links client MAC addresses to node addresses) using this
MAC address buffer and linking it to the node's address contained in the
OGM. A node that wants to contact a client has to lookup the node the
client is connected to and its address in the global translation table.It is easy to understand that this implementation suffers from several
issues:
- big overhead (each and every OGM contains the entire list of
connected clients)
- high latencies for client route updates due to long OGM trip time and
OGM lossesThe new implementation addresses these issues by appending client
changes (new client joined or a client left) to the OGM instead of
filling it with all the client addresses each time. In this way nodes
can modify their global tables by means of "updates", thus reducing the
overhead within the OGMs.To keep the entire network in sync each node maintains a translation
table version number (ttvn) and a translation table checksum. These
values are spread with the OGM to allow all the network participants to
determine whether or not they need to update their translation table
information.When a translation table lookup is performed in order to send a packet
to a client attached to another node, the destination's ttvn is added to
the payload packet. Forwarding nodes can compare the packet's ttvn with
their destination's ttvn (this node could have a fresher information
than the source) and re-route the packet if necessary. This greatly
reduces the packet loss of clients roaming from one AP to the next.Signed-off-by: Antonio Quartulli
Signed-off-by: Marek Lindner
Signed-off-by: Sven Eckelmann
30 May, 2011
1 commit
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batman-adv uses pointers which are marked as const and should not
violate that type qualifier by passing it to functions which force a
cast to the non-const version.Signed-off-by: Sven Eckelmann
08 May, 2011
1 commit
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To be coherent, all the functions/variables/constants have been renamed
to the TranslationTable styleSigned-off-by: Antonio Quartulli
Signed-off-by: Sven Eckelmann
05 Mar, 2011
1 commit
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Signed-off-by: Linus Lüssing
Signed-off-by: Marek Lindner
