linux-toradex.git/include/net/udp.h, branch v3.3.5

net: use IS_ENABLED(CONFIG_IPV6)

2011-12-11T23:25:16+00:00

Instead of testing defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

udp: Export code sk lookup routines

2011-12-09T19:14:08+00:00

The UDP diag get_exact handler will require them to find a
socket by provided net, [sd]addr-s, [sd]ports and device.

Signed-off-by: Pavel Emelyanov 
Signed-off-by: David S. Miller

net: introduce and use netdev_features_t for device features sets

2011-11-16T22:43:10+00:00

v2:	add couple missing conversions in drivers
	split unexporting netdev_fix_features()
	implemented %pNF
	convert sock::sk_route_(no?)caps

Signed-off-by: Michał Mirosław 
Signed-off-by: David S. Miller

net: make the tcp and udp file_operations for the /proc stuff const

2011-11-01T21:56:14+00:00

the tcp and udp code creates a set of struct file_operations at runtime
while it can also be done at compile time, with the added benefit of then
having these file operations be const.

the trickiest part was to get the "THIS_MODULE" reference right; the naive
method of declaring a struct in the place of registration would not work
for this reason.

Signed-off-by: Arjan van de Ven 
Signed-off-by: David S. Miller

udp: Switch to ip_finish_skb

2011-03-01T20:35:03+00:00

This patch converts UDP to use the new ip_finish_skb API.  This
would then allows us to more easily use ip_make_skb which allows
UDP to run without a socket lock.

Signed-off-by: Herbert Xu 
Acked-by: Eric Dumazet 
Signed-off-by: David S. Miller

net: change netdev->features to u32

2011-01-24T23:32:47+00:00

Quoting Ben Hutchings: we presumably won't be defining features that
can only be enabled on 64-bit architectures.

Occurences found by `grep -r` on net/, drivers/net, include/

[ Move features and vlan_features next to each other in
  struct netdev, as per Eric Dumazet's suggestion -DaveM ]

Signed-off-by: Michał Mirosław 
Signed-off-by: David S. Miller

net: avoid limits overflow

2010-11-10T20:12:00+00:00

Robin Holt tried to boot a 16TB machine and found some limits were
reached : sysctl_tcp_mem[2], sysctl_udp_mem[2]

We can switch infrastructure to use long "instead" of "int", now
atomic_long_t primitives are available for free.

Signed-off-by: Eric Dumazet 
Reported-by: Robin Holt 
Reviewed-by: Robin Holt 
Signed-off-by: Andrew Morton 
Signed-off-by: David S. Miller

tproxy: added udp6_lib_lookup function

2010-10-21T14:05:41+00:00

Just like with IPv4, we need access to the UDP hash table to look up local
sockets, but instead of exporting the global udp_table, export a lookup
function.

Signed-off-by: Balazs Scheidler 
Signed-off-by: KOVACS Krisztian 
Signed-off-by: Patrick McHardy

udp: add rehash on connect()

2010-09-09T04:45:01+00:00

commit 30fff923 introduced in linux-2.6.33 (udp: bind() optimisation)
added a secondary hash on UDP, hashed on (local addr, local port).

Problem is that following sequence :

fd = socket(...)
connect(fd, &remote, ...)

not only selects remote end point (address and port), but also sets
local address, while UDP stack stored in secondary hash table the socket
while its local address was INADDR_ANY (or ipv6 equivalent)

Sequence is :
 - autobind() : choose a random local port, insert socket in hash tables
              [while local address is INADDR_ANY]
 - connect() : set remote address and port, change local address to IP
              given by a route lookup.

When an incoming UDP frame comes, if more than 10 sockets are found in
primary hash table, we switch to secondary table, and fail to find
socket because its local address changed.

One solution to this problem is to rehash datagram socket if needed.

We add a new rehash(struct socket *) method in "struct proto", and
implement this method for UDP v4 & v6, using a common helper.

This rehashing only takes care of secondary hash table, since primary
hash (based on local port only) is not changed.

Reported-by: Krzysztof Piotr Oledzki 
Signed-off-by: Eric Dumazet 
Tested-by: Krzysztof Piotr Oledzki 
Signed-off-by: David S. Miller

net: cleanups

2010-07-13T03:21:45+00:00

remove useless blanks.

Signed-off-by: Changli Gao 
----
 include/net/inet_common.h |   55 ++++-------
 include/net/tcp.h         |  222 +++++++++++++++++-----------------------------
 include/net/udp.h         |   38 +++----
 3 files changed, 123 insertions(+), 192 deletions(-)
Signed-off-by: David S. Miller