linux-toradex.git/include/net/raw.h, branch v4.6-rc3

sock: struct proto hash function may error

2016-02-11T08:54:14+00:00

In order to support fast reuseport lookups in TCP, the hash function
defined in struct proto must be capable of returning an error code.
This patch changes the function signature of all related hash functions
to return an integer and handles or propagates this return value at
all call sites.

Signed-off-by: Craig Gallek 
Signed-off-by: David S. Miller

raw/rawv6.h: Remove extern from function prototypes

2013-09-23T05:51:08+00:00

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches 
Signed-off-by: David S. Miller

include/net/raw.h: Convert raw_seq_private macro to inline

2010-09-08T20:42:22+00:00

Signed-off-by: Joe Perches 
Signed-off-by: David S. Miller

ipv4: ipmr: support multiple tables

2010-04-13T21:49:34+00:00

This patch adds support for multiple independant multicast routing instances,
named "tables".

Userspace multicast routing daemons can bind to a specific table instance by
issuing a setsockopt call using a new option MRT_TABLE. The table number is
stored in the raw socket data and affects all following ipmr setsockopt(),
getsockopt() and ioctl() calls. By default, a single table (RT_TABLE_DEFAULT)
is created with a default routing rule pointing to it. Newly created pimreg
devices have the table number appended ("pimregX"), with the exception of
devices created in the default table, which are named just "pimreg" for
compatibility reasons.

Packets are directed to a specific table instance using routing rules,
similar to how regular routing rules work. Currently iif, oif and mark
are supported as keys, source and destination addresses could be supported
additionally.

Example usage:

- bind pimd/xorp/... to a specific table:

uint32_t table = 123;
setsockopt(fd, IPPROTO_IP, MRT_TABLE, &table, sizeof(table));

- create routing rules directing packets to the new table:

# ip mrule add iif eth0 lookup 123
# ip mrule add oif eth0 lookup 123

Signed-off-by: Patrick McHardy 
Signed-off-by: David S. Miller

ipv4: raw: move struct raw_sock and raw_sk() to include/net/raw.h

2010-04-13T21:49:31+00:00

A following patch will use struct raw_sock to store state for ipmr,
so having the definitions in icmp.h doesn't fit very well anymore.

Signed-off-by: Patrick McHardy 
Signed-off-by: David S. Miller

[RAW]: Add raw_hashinfo member on struct proto.

2008-03-22T23:56:51+00:00

Sorry for the patch sequence confusion :| but I found that the similar
thing can be done for raw sockets easily too late.

Expand the proto.h union with the raw_hashinfo member and use it in
raw_prot and rawv6_prot. This allows to drop the protocol specific
versions of hash and unhash callbacks.

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

[RAW]: Wrong content of the /proc/net/raw6.

2008-02-01T03:27:26+00:00

The address of IPv6 raw sockets was shown in the wrong format, from
IPv4 ones.  The problem has been introduced by the commit
42a73808ed4f30b739eb52bcbb33a02fe62ceef5 ("[RAW]: Consolidate proc
interface.")

Thanks to Adrian Bunk who originally noticed the problem.

Signed-off-by: Denis V. Lunev 
Signed-off-by: David S. Miller

[RAW]: Family check in the /proc/net/raw[6] is extra.

2008-02-01T03:27:24+00:00

Different hashtables are used for IPv6 and IPv4 raw sockets, so no
need to check the socket family in the iterator over hashtables. Clean
this out.

Signed-off-by: Denis V. Lunev 
Signed-off-by: David S. Miller

[NETNS][RAW]: Make /proc/net/raw(6) show per-namespace socket list.

2008-01-28T23:02:06+00:00

Pull the struct net pointer up to the showing functions
to filter the sockets depending on their namespaces.

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

[RAW]: Consolidate proc interface.

2008-01-28T22:54:32+00:00

Both ipv6/raw.c and ipv4/raw.c use the seq files to walk
through the raw sockets hash and show them.

The "walking" code is rather huge, but is identical in both
cases. The difference is the hash table to walk over and
the protocol family to check (this was not in the first
virsion of the patch, which was noticed by YOSHIFUJI)

Make the ->open store the needed hash table and the family
on the allocated raw_iter_state and make the start/next/stop
callbacks work with it.

This removes most of the code.

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