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2007-04-26[NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS supportEric Dumazet25-13/+101
Now that network timestamps use ktime_t infrastructure, we can add a new SOL_SOCKET sockopt SO_TIMESTAMPNS. This command is similar to SO_TIMESTAMP, but permits transmission of a 'timespec struct' instead of a 'timeval struct' control message. (nanosecond resolution instead of microsecond) Control message is labelled SCM_TIMESTAMPNS instead of SCM_TIMESTAMP A socket cannot mix SO_TIMESTAMP and SO_TIMESTAMPNS : the two modes are mutually exclusive. sock_recv_timestamp() became too big to be fully inlined so I added a __sock_recv_timestamp() helper function. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> CC: linux-arch@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[UDP]: Use __skb_pull since we have checked it won't fail with pskb_may_pullArnaldo Carvalho de Melo1-1/+1
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[NET]: New sysctls should use __read_mostly tagsEric Dumazet1-3/+3
net_msg_warn should be placed in the read_mostly section, to avoid performance problems on SMP Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[IPV6]: Ensure to truncate result and return full length for sticky options.YOSHIFUJI Hideaki1-2/+2
Bug noticed by Chris Wright <chrisw@sous-sol.org>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[IPV6]: Return correct result for sticky options.YOSHIFUJI Hideaki1-4/+23
We returned incorrect result with IPV6_RTHDRDSTOPTS, IPV6_RTHDR and IPV6_DSTOPTS. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[UDP]: deinlineStephen Hemminger1-4/+4
A couple of functions are exported or used indirectly so it is pointless to mark them as inline. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[NET]: deinline some functionsStephen Hemminger1-5/+5
Several functions are marked inline or forced inline, but it would be better to let the compiler decide. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[TCP]: whitespace cleanupStephen Hemminger5-50/+51
Add whitespace around keywords. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[IPV4]: cleanupStephen Hemminger12-750/+745
Add whitespace around keywords. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[WIRELESS]: use ARRAY_SIZE()Stephen Hemminger1-4/+2
Use ARRAY_SIZE() macro now. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[NET] core: whitespace cleanupStephen Hemminger7-535/+530
Fix whitespace around keywords. Fix indentation especially of switch statements. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[UDP]: ipv6 style cleanupStephen Hemminger1-6/+6
Fix whitespace around keywords. Eliminate unnecessary ()'s on return statements. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[UDP]: ipv4 whitespace cleanupStephen Hemminger1-47/+48
Fix whitespace around keywords. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[NET]: Replace CONFIG_NET_DEBUG with sysctl.Stephen Hemminger6-14/+25
Covert network warning messages from a compile time to runtime choice. Removes kernel config option and replaces it with new /proc/sys/net/core/warnings. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[NET]: Introduce SIOCGSTAMPNS ioctl to get timestamps with nanosec resolutionEric Dumazet37-22/+146
Now network timestamps use ktime_t infrastructure, we can add a new ioctl() SIOCGSTAMPNS command to get timestamps in 'struct timespec'. User programs can thus access to nanosecond resolution. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> CC: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[TCP/DCCP/RANDOM]: Remove unused exports.Adrian Bunk3-5/+0
This patch removes the following not or no longer used exports: - drivers/char/random.c: secure_tcp_sequence_number - net/dccp/options.c: sysctl_dccp_feat_sequence_window - net/netlink/af_netlink.c: netlink_set_err Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[TCP]: Abstract out all write queue operations.David S. Miller7-117/+221
This allows the write queue implementation to be changed, for example, to one which allows fast interval searching. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[NET] TIPC: Use htons() where appropriate.YOSHIFUJI Hideaki1-1/+1
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[NET] SCHED: Use htons() where appropriate.YOSHIFUJI Hideaki2-2/+2
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[NET] NETFILTER: Use htonl() where appropriate.YOSHIFUJI Hideaki1-5/+4
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[NET] IPV4: Use hton{s,l}() where appropriate.YOSHIFUJI Hideaki4-26/+25
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[NET] IEEE80211: Use htons() where appropriate.YOSHIFUJI Hideaki1-1/+1
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[NET] ETHERNET: Use htons() where appropriate.YOSHIFUJI Hideaki1-1/+1
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[NET] CORE: Use htons() where appropriate.YOSHIFUJI Hideaki1-1/+1
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[NET] BLUETOOTH: Use cpu_to_le{16,32}() where appropriate.YOSHIFUJI Hideaki4-67/+67
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[NET] ATM: Use htons() where appropriate.YOSHIFUJI Hideaki1-2/+2
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[NET] 8021Q: Use htons() where appropriate.YOSHIFUJI Hideaki1-3/+3
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[NET] 802: Use hton{s,l}() where appropriate.YOSHIFUJI Hideaki2-4/+4
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[UDP]: Clean up UDP-Lite receive checksumHerbert Xu8-120/+109
This patch eliminates some duplicate code for the verification of receive checksums between UDP-Lite and UDP. It does this by introducing __skb_checksum_complete_head which is identical to __skb_checksum_complete_head apart from the fact that it takes a length parameter rather than computing the first skb->len bytes. As a result UDP-Lite will be able to use hardware checksum offload for packets which do not use partial coverage checksums. It also means that UDP-Lite loopback no longer does unnecessary checksum verification. If any NICs start support UDP-Lite this would also start working automatically. This patch removes the assumption that msg_flags has MSG_TRUNC clear upon entry in recvmsg. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[UDP6]: Restore sk_filter optimisationHerbert Xu1-2/+4
This reverts the changeset [IPV6]: UDPv6 checksum. We always need to check UDPv6 checksum because it is mandatory. The sk_filter optimisation has nothing to do whether we verify the checksum. It simply postpones it to the point when the user calls recv or poll. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[IPV4]: Optimize inet_getpeer()Eric Dumazet1-16/+22
1) Some sysctl vars are declared __read_mostly 2) We can avoid updating stack[] when doing an AVL lookup only. lookup() macro is extended to receive a second parameter, that may be NULL in case of a pure lookup (no need to save the AVL path). This removes unnecessary instructions, because compiler knows if this _stack parameter is NULL or not. text size of net/ipv4/inetpeer.o is 2063 bytes instead of 2107 on x86_64 Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[TCP] TCP Yeah: cleanupStephen Hemminger1-19/+23
Eliminate need for full 6/4/64 divide to compute queue. Variable maxqueue was really a constant. Fix indentation. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[TCP] tcp_cubic: faster cube rootStephen Hemminger1-11/+5
The Newton-Raphson method is quadratically convergent so only a small fixed number of steps are necessary. Therefore it is faster to unroll the loop. Since div64_64 is no longer inline it won't cause code explosion. Also fixes a bug that can occur if x^2 was bigger than 32 bits. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[ATM] ENI: Convert to struct timeval to ktime_t.YOSHIFUJI Hideaki2-3/+3
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[NETLINK]: Limit NLMSG_GOODSIZE to 8K.David S. Miller2-5/+14
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[IPV6] ADDRCONF: Fix possible inet6_ifaddr leakage with CONFIG_OPTIMISTIC_DAD.YOSHIFUJI Hideaki1-4/+3
The inet6_ifaddr for source address of RS is leaked if the address is not an optimistic address. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support.Neil Horman8-41/+207
Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[IPV6] IP6TUNNEL: Enable to control the handled inner protocol.Yasuyuki Kozakai1-11/+26
ip6_tunnel before supporting IPv4/IPv6 tunnel allows only IPPROTO_IPV6 in configurations from userland. This allows userland to set IPPROTO_IPIP and 0(wildcard). ip6_tunnel only handles allowed inner protocols. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[IPV6] IP6TUNNEL: Rename functions ip6ip6_* to ip6_tnl_*.Yasuyuki Kozakai1-96/+96
Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[IPV6] IP6TUNNEL: Add support to IPv4 over IPv6 tunnel.Yasuyuki Kozakai1-5/+185
Some notes - Protocol number IPPROTO_IPIP is used for IPv4 over IPv6 packets. - If IP6_TNL_F_USE_ORIG_TCLASS is set, TOS in IPv4 header is copied to Traffic Class in outer IPv6 header on xmit. - IP6_TNL_F_USE_ORIG_FLOWLABEL is ignored on xmit of IPv4 packets, because IPv4 header does not have flow label. - Kernel sends ICMP error if IPv4 packet is too big on xmit, even if DF flag is not set. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[IPV6] IP6TUNNEL: Split out generic routine in ip6ip6_xmit().Yasuyuki Kozakai1-45/+98
This enables to add IPv4/IPv6 specific handling later, Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[IPV6] IP6TUNNEL: Split out generic routine in ip6ip6_rcv().Yasuyuki Kozakai1-11/+23
This enables to add IPv4/IPv6 specific handling later, Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[IPV6] IP6TUNNEL: Split out generic routine in ip6ip6_err().Yasuyuki Kozakai1-14/+39
This enables to add IPv4/IPv6 specific error handling later, Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[IPV6]: Decentralize EXPORT_SYMBOLs.YOSHIFUJI Hideaki13-37/+49
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2007-04-26[NETLINK]: Mirror UDP MSG_TRUNC semantics.David S. Miller1-0/+3
If the user passes MSG_TRUNC in via msg_flags, return the full packet size not the truncated size. Idea from Herbert Xu and Thomas Graf. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[NET]: convert network timestamps to ktime_tEric Dumazet20-98/+85
We currently use a special structure (struct skb_timeval) and plain 'struct timeval' to store packet timestamps in sk_buffs and struct sock. This has some drawbacks : - Fixed resolution of micro second. - Waste of space on 64bit platforms where sizeof(struct timeval)=16 I suggest using ktime_t that is a nice abstraction of high resolution time services, currently capable of nanosecond resolution. As sizeof(ktime_t) is 8 bytes, using ktime_t in 'struct sock' permits a 8 byte shrink of this structure on 64bit architectures. Some other structures also benefit from this size reduction (struct ipq in ipv4/ip_fragment.c, struct frag_queue in ipv6/reassembly.c, ...) Once this ktime infrastructure adopted, we can more easily provide nanosecond resolution on top of it. (ioctl SIOCGSTAMPNS and/or SO_TIMESTAMPNS/SCM_TIMESTAMPNS) Note : this patch includes a bug correction in compat_sock_get_timestamp() where a "err = 0;" was missing (so this syscall returned -ENOENT instead of 0) Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> CC: Stephen Hemminger <shemminger@linux-foundation.org> CC: John find <linux.kernel@free.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[NET]: div64_64 consolidate (rev3)Stephen Hemminger13-63/+60
Here is the current version of the 64 bit divide common code. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[NET]: Convert xtime.tv_sec to get_seconds()James Morris9-26/+26
Where appropriate, convert references to xtime.tv_sec to the get_seconds() helper function. Signed-off-by: James Morris <jmorris@namei.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[PKTGEN]: fix device name handlingStephen Hemminger1-67/+70
Since devices can change name and other wierdness, don't hold onto a copy of device name, instead use pointer to output device. Fix a couple of leaks in error handling path as well. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Robert Olsson <robert.olsson@its.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[PKTGEN]: don't use __constant_htonl()Stephen Hemminger1-12/+12
The existing htonl() macro is smart enough to do the same code as using __constant_htonl() and it looks cleaner. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Robert Olsson <robert.olsson@its.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net>
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