linux-toradex.git/include/net/ipv6.h, branch v3.3.5

ipv6: Add fragment reporting to ipv6_skip_exthdr().

2011-12-03T17:35:10+00:00

While parsing through IPv6 extension headers, fragment headers are
skipped making them invisible to the caller.  This reports the
fragment offset of the last header in order to make it possible to
determine whether the packet is fragmented and, if so whether it is
a first or last fragment.

Signed-off-by: Jesse Gross

net: remove ipv6_addr_copy()

2011-11-22T21:43:32+00:00

C assignment can handle struct in6_addr copying.

Signed-off-by: Alexey Dobriyan 
Signed-off-by: David S. Miller

ipv6: reduce percpu needs for icmpv6msg mibs

2011-11-14T05:12:26+00:00

Reading /proc/net/snmp6 on a machine with a lot of cpus is very
expensive (can be ~88000 us).

This is because ICMPV6MSG MIB uses 4096 bytes per cpu, and folding
values for all possible cpus can read 16 Mbytes of memory (32MBytes on
non x86 arches)

ICMP messages are not considered as fast path on a typical server, and
eventually few cpus handle them anyway. We can afford an atomic
operation instead of using percpu data.

This saves 4096 bytes per cpu and per network namespace.

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

ipv6: tcp: fix TCLASS value in ACK messages sent from TIME_WAIT

2011-10-27T04:44:35+00:00

commit 66b13d99d96a (ipv4: tcp: fix TOS value in ACK messages sent from
TIME_WAIT) fixed IPv4 only.

This part is for the IPv6 side, adding a tclass param to ip6_xmit()

We alias tw_tclass and tw_tos, if socket family is INET6.

[ if sockets is ipv4-mapped, only IP_TOS socket option is used to fill
TOS field, TCLASS is not taken into account ]

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

ipv6: make fragment identifications less predictable

2011-07-22T04:25:58+00:00

IPv6 fragment identification generation is way beyond what we use for
IPv4 : It uses a single generator. Its not scalable and allows DOS
attacks.

Now inetpeer is IPv6 aware, we can use it to provide a more secure and
scalable frag ident generator (per destination, instead of system wide)

This patch :
1) defines a new secure_ipv6_id() helper
2) extends inet_getid() to provide 32bit results
3) extends ipv6_select_ident() with a new dest parameter

Reported-by: Fernando Gont 
Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

ipv6: reduce per device ICMP mib sizes

2011-05-19T20:21:22+00:00

ipv6 has per device ICMP SNMP counters, taking too much space because
they use percpu storage.

needed size per device is :
(512+4)*sizeof(long)*number_of_possible_cpus*2

On a 32bit kernel, 16 possible cpus, this wastes more than 64kbytes of
memory per ipv6 enabled network device, taken in vmalloc pool.

Since ICMP messages are rare, just use shared counters (atomic_long_t)

Per network space ICMP counters are still using percpu memory, we might
also convert them to shared counters in a future patch.

Signed-off-by: Eric Dumazet 
CC: Denys Fedoryshchenko 
Signed-off-by: David S. Miller

net: Remove KERNEL cpp checks from include/net

2011-04-24T17:54:56+00:00

These header files are never installed to user consumption, so any
__KERNEL__ cpp checks are superfluous.

Projects should also not copy these files into their userland utility
sources and try to use them there.  If they insist on doing so, the
onus is on them to sanitize the headers as needed.

Signed-off-by: David S. Miller

inet: constify ip headers and in6_addr

2011-04-22T18:04:14+00:00

Add const qualifiers to structs iphdr, ipv6hdr and in6_addr pointers
where possible, to make code intention more obvious.

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

ipv6: Convert to use flowi6 where applicable.

2011-03-12T23:08:54+00:00

Signed-off-by: David S. Miller

Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

2011-03-04T05:27:42+00:00

Conflicts:
	drivers/net/bnx2x/bnx2x.h