27 Apr, 2007
1 commit
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Signed-off-by: YOSHIFUJI Hideaki
Signed-off-by: David S. Miller
26 Apr, 2007
39 commits
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SPIN_LOCK_UNLOCKED cleanup,use __SPIN_LOCK_UNLOCKED instead
Signed-off-by: Milind Arun Choudhary
Signed-off-by: Andrew Morton
Signed-off-by: David S. Miller -
Because ndisc_send_na(), ndisc_send_ns() and ndisc_send_rs()
are almost identical, so let's unify their common part.With gcc (GCC) 3.3.5 (Debian 1:3.3.5-13) on i386,
Before:
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14689 364 24 15077 3ae5 net/ipv6/ndisc.o
After:
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12317 364 24 12705 31a1 net/ipv6/ndisc.oSigned-off-by: YOSHIFUJI Hideaki
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Signed-off-by: YOSHIFUJI Hideaki
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Signed-off-by: YOSHIFUJI Hideaki
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Signed-off-by: YOSHIFUJI Hideaki
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obj-$(CONFIG_PROC_FS) --> ipv6-$(CONFIG_PROC_FS)
Signed-off-by: David S. Miller
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This patch moves the non-proc SNMP code into addrconf.c and reuses
IPv4 SNMP code where applicable.As a result we can skip proc.o if /proc is disabled.
Note that I've made a number of functions static since they're only
used by addrconf.c for now. If they ever get used elsewhere we can
always remove the static.Signed-off-by: Herbert Xu
Acked-by: YOSHIFUJI Hideaki
Signed-off-by: David S. Miller -
Hint from David Miller .
Signed-off-by: YOSHIFUJI Hideaki
Signed-off-by: David S. Miller -
Signed-off-by: YOSHIFUJI Hideaki
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Because stats pointer may not be aligned for u64, use memcpy
to fill u64 values.
Issue reported by David Miller .Signed-off-by: YOSHIFUJI Hideaki
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Spring cleaning time...
There seems to be a lot of places in the network code that have
extra bogus semicolons after conditionals. Most commonly is a
bogus semicolon after: switch() { }Signed-off-by: Stephen Hemminger
Signed-off-by: David S. Miller -
Signed-off-by: YOSHIFUJI Hideaki
Signed-off-by: David S. Miller -
Signed-off-by: YOSHIFUJI Hideaki
Signed-off-by: David S. Miller -
Signed-off-by: YOSHIFUJI Hideaki
Signed-off-by: David S. Miller -
Add IP(V6)_PMTUDISC_PROBE value for IP(V6)_MTU_DISCOVER. This option forces
us not to fragment, but does not make use of the kernel path MTU discovery.
That is, it allows for user-mode MTU probing (or, packetization-layer path
MTU discovery). This is particularly useful for diagnostic utilities, like
traceroute/tracepath.Signed-off-by: John Heffner
Signed-off-by: David S. Miller -
Adds a check in ip6_fragment() mirroring ip_fragment() for packets
that we can't fragment, and sends an ICMP Packet Too Big message
in response.Signed-off-by: John Heffner
Signed-off-by: David S. Miller -
Since we're now holding the rtnl during the entire dump operation, we can
remove additional locking for rtnl protected data. This patch does that
for all simple cases (dev_base_lock for dev_base walking, RCU protection
for FIB rule dumping).Signed-off-by: Patrick McHardy
Signed-off-by: David S. Miller -
Switch cb_lock to mutex and allow netlink kernel users to override it
with a subsystem specific mutex for consistent locking in dump callbacks.
All netlink_dump_start users have been audited not to rely on any
side-effects of the previously used spinlock.Signed-off-by: Patrick McHardy
Signed-off-by: David S. Miller -
All LOG targets always use their internal logging function nowadays, so
remove the incorrect error message and handle real errors (!= -EEXIST)
by failing to load.Signed-off-by: Patrick McHardy
Signed-off-by: David S. Miller -
When a transmitted packet is looped back directly, CHECKSUM_PARTIAL
maps to the semantics of CHECKSUM_UNNECESSARY. Therefore we should
treat it as such in the stack.Signed-off-by: Herbert Xu
Signed-off-by: David S. Miller -
The skb transport pointer is currently used to specify the start
of the checksum region for transmit checksum offload. Unfortunately,
the same pointer is also used during receive side processing.This creates a problem when we want to retransmit a received
packet with partial checksums since the skb transport pointer
would be overwritten.This patch solves this problem by creating a new 16-bit csum_start
offset value to replace the skb transport header for the purpose
of checksums. This offset is calculated from skb->head so that
it does not have to change when skb->data changes.No extra space is required since csum_offset itself fits within
a 16-bit word so we can use the other 16 bits for csum_start.For backwards compatibility, just before we push a packet with
partial checksums off into the device driver, we set the skb
transport header to what it would have been under the old scheme.Signed-off-by: Herbert Xu
Signed-off-by: David S. Miller -
Replace the probing based MTU estimation, which usually takes 2-3 iterations
to find a fitting value and may underestimate the MTU, by an exact calculation.Also fix underestimation of the XFRM trailer_len, which causes unnecessary
reallocations.Signed-off-by: Patrick McHardy
Signed-off-by: David S. Miller -
Fix incorrect switch of "trailer" skb by "skb" during skb_tail_pointer
conversion:- *(u8*)(trailer->tail - 1) = top_iph->protocol;
+ *(skb_tail_pointer(skb) - 1) = top_iph->protocol;- *(u8 *)(trailer->tail - 1) = *skb_network_header(skb);
+ *(skb_tail_pointer(skb) - 1) = *skb_network_header(skb);Signed-off-by: Patrick McHardy
Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
When looking up route for destination with rules with
source address restrictions, we may need to find a source
address for the traffic if not given.Based on patch from Noriaki TAKAMIYA .
Signed-off-by: YOSHIFUJI Hideaki
Signed-off-by: David S. Miller -
To clearly state the intent of copying to linear sk_buffs, _offset being a
overly long variant but interesting for the sake of saving some bytes.Signed-off-by: Arnaldo Carvalho de Melo
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To clearly state the intent of copying from linear sk_buffs, _offset being a
overly long variant but interesting for the sake of saving some bytes.Signed-off-by: Arnaldo Carvalho de Melo
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Right now Xen has a horrible hack that lets it forward packets with
partial checksums. One of the reasons that CHECKSUM_PARTIAL and
CHECKSUM_COMPLETE were added is so that we can get rid of this hack
(where it creates two extra bits in the skbuff to essentially mirror
ip_summed without being destroyed by the forwarding code).I had forgotten that I've already gone through all the deivce drivers
last time around to make sure that they're looking at ip_summed ==
CHECKSUM_PARTIAL rather than ip_summed != 0 on transmit. In any case,
I've now done that again so it should definitely be safe.Unfortunately nobody has yet added any code to update CHECKSUM_COMPLETE
values on forward so we I'm setting that to CHECKSUM_NONE. This should
be safe to remove for bridging but I'd like to check that code path
first.So here is the patch that lets us get rid of the hack by preserving
ip_summed (mostly) on forwarded packets.Signed-off-by: Herbert Xu
Signed-off-by: David S. Miller -
The days are gone when this was not an issue, there are folks out
there with huge bot networks that can be used to attack the
established hash tables on remote systems.So just like the routing cache and connection tracking
hash, use Jenkins hash with random secret input.Signed-off-by: David S. Miller
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Signed-off-by: Patrick McHardy
Signed-off-by: David S. Miller -
Signed-off-by: Patrick McHardy
Signed-off-by: David S. Miller -
Implements a unified, protocol independant rules dumping function
which is capable of both, dumping a specific protocol family or
all of them. This speeds up dumping as less lookups are required.Signed-off-by: Thomas Graf
Signed-off-by: David S. Miller -
Signed-off-by: Thomas Graf
Signed-off-by: David S. Miller -
So that we reduce the number of direct accesses to skb->data.
Signed-off-by: Arnaldo Carvalho de Melo
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For the common "(struct nlmsghdr *)skb->data" sequence, so that we reduce the
number of direct accesses to skb->data and for consistency with all the other
cast skb member helpers.Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
So that it is also an offset from skb->head, reduces its size from 8 to 4 bytes
on 64bit architectures, allowing us to combine the 4 bytes hole left by the
layer headers conversion, reducing struct sk_buff size to 256 bytes, i.e. 4
64byte cachelines, and since the sk_buff slab cache is SLAB_HWCACHE_ALIGN...
:-)Many calculations that previously required that skb->{transport,network,
mac}_header be first converted to a pointer now can be done directly, being
meaningful as offsets or pointers.Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
Renaming skb->h to skb->transport_header, skb->nh to skb->network_header and
skb->mac to skb->mac_header, to match the names of the associated helpers
(skb[_[re]set]_{transport,network,mac}_header).Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
For the common sequence "skb->h.raw - skb->nh.raw", similar to skb->mac_len,
that is precalculated tho, don't think we need to bloat skb with one more
member, so just use this new helper, reducing the number of non-skbuff.h
references to the layer headers even more.Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
Some more cases...
Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller
