linux/net
Michele Baldessari 196d675934 sctp: Add support to per-association statistics via a new SCTP_GET_ASSOC_STATS call
The current SCTP stack is lacking a mechanism to have per association
statistics. This is an implementation modeled after OpenSolaris'
SCTP_GET_ASSOC_STATS.

Userspace part will follow on lksctp if/when there is a general ACK on
this.
V4:
- Move ipackets++ before q->immediate.func() for consistency reasons
- Move sctp_max_rto() at the end of sctp_transport_update_rto() to avoid
  returning bogus RTO values
- return asoc->rto_min when max_obs_rto value has not changed

V3:
- Increase ictrlchunks in sctp_assoc_bh_rcv() as well
- Move ipackets++ to sctp_inq_push()
- return 0 when no rto updates took place since the last call

V2:
- Implement partial retrieval of stat struct to cope for future expansion
- Kill the rtxpackets counter as it cannot be precise anyway
- Rename outseqtsns to outofseqtsns to make it clearer that these are out
  of sequence unexpected TSNs
- Move asoc->ipackets++ under a lock to avoid potential miscounts
- Fold asoc->opackets++ into the already existing asoc check
- Kill unneeded (q->asoc) test when increasing rtxchunks
- Do not count octrlchunks if sending failed (SCTP_XMIT_OK != 0)
- Don't count SHUTDOWNs as SACKs
- Move SCTP_GET_ASSOC_STATS to the private space API
- Adjust the len check in sctp_getsockopt_assoc_stats() to allow for
  future struct growth
- Move association statistics in their own struct
- Update idupchunks when we send a SACK with dup TSNs
- return min_rto in max_rto when RTO has not changed. Also return the
  transport when max_rto last changed.

Signed-off: Michele Baldessari <michele@acksyn.org>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-03 13:32:15 -05:00
..
9p The following changes since commit 4cbe5a555f: 2012-10-12 09:59:23 +09:00
802
8021q 8021q: fix vlan device to inherit the unicast filtering capability flag 2012-11-30 12:07:27 -05:00
appletalk userns: Print out socket uids in a user namespace aware fashion. 2012-08-14 21:48:06 -07:00
atm pppoatm: optimise PPP channel wakeups after sock_owned_by_user() 2012-12-02 00:05:20 +00:00
ax25 userns: Convert net/ax25 to use kuid_t where appropriate 2012-08-14 21:49:42 -07:00
batman-adv batman-adv: use ETH_P_BATMAN 2012-11-30 10:50:22 +01:00
bluetooth Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next 2012-11-21 13:03:00 -05:00
bridge net: Enable a userns root rtnl calls that are safe for unprivilged users 2012-11-18 20:33:36 -05:00
caif caif: Remove redundant null check before kfree in cfctrl.c 2012-11-20 13:48:09 -05:00
can Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-11-29 12:51:17 -05:00
ceph Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2012-10-29 08:49:25 -07:00
core rtnelink: remove unused parameter from rtnl_create_link(). 2012-11-30 12:24:40 -05:00
dcb net: Push capable(CAP_NET_ADMIN) into the rtnl methods 2012-11-18 20:32:44 -05:00
dccp tcp: better retrans tracking for defer-accept 2012-11-03 14:45:00 -04:00
decnet net: Push capable(CAP_NET_ADMIN) into the rtnl methods 2012-11-18 20:32:44 -05:00
dns_resolver Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
dsa dsa: Hide core config options; make drivers select what they need 2012-11-26 17:10:44 -05:00
ethernet ipx: move peII functions 2012-07-19 10:48:00 -07:00
ieee802154 6lowpan: consider checksum bytes in fragmentation threshold 2012-11-30 12:19:24 -05:00
ipv4 tcp: don't abort splice() after small transfers 2012-12-02 20:23:01 -05:00
ipv6 ipv6: unify logic evaluating inet6_dev's accept_ra property 2012-12-01 11:36:37 -05:00
ipx userns: Print out socket uids in a user namespace aware fashion. 2012-08-14 21:48:06 -07:00
irda irda: irttp: fix memory leak in irttp_open_tsap() error path 2012-11-28 11:25:29 -05:00
iucv
key net: Allow userns root to control llc, netfilter, netlink, packet, and xfrm 2012-11-18 20:32:45 -05:00
l2tp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-11-10 18:32:51 -05:00
lapb
llc net: Allow userns root to control llc, netfilter, netlink, packet, and xfrm 2012-11-18 20:32:45 -05:00
mac80211 Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next 2012-11-26 14:46:41 -05:00
mac802154 mac802154: use kfree_skb() instead of dev_kfree_skb() 2012-11-30 12:19:24 -05:00
netfilter Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jesse/openvswitch 2012-11-30 12:01:30 -05:00
netlabel Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2012-10-02 13:38:27 -07:00
netlink net: Allow userns root to control llc, netfilter, netlink, packet, and xfrm 2012-11-18 20:32:45 -05:00
netrom net: change return values from -EACCES to -EPERM 2012-09-21 13:58:08 -04:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-11-25 12:49:17 -05:00
openvswitch openvswitch: Use RCU callback when detaching netdevices. 2012-11-28 14:04:34 -08:00
packet net: Allow userns root to control llc, netfilter, netlink, packet, and xfrm 2012-11-18 20:32:45 -05:00
phonet net: Push capable(CAP_NET_ADMIN) into the rtnl methods 2012-11-18 20:32:44 -05:00
rds net: rds: use this_cpu_* per-cpu helper 2012-11-19 18:59:44 -05:00
rfkill Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2012-10-02 13:38:27 -07:00
rose
rxrpc Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
sched pkt_sched: QFQ Plus: fair-queueing service at DRR cost 2012-11-28 11:19:35 -05:00
sctp sctp: Add support to per-association statistics via a new SCTP_GET_ASSOC_STATS call 2012-12-03 13:32:15 -05:00
sunrpc SUNRPC: return proper errno from backchannel_rqst 2012-11-01 11:50:53 -04:00
tipc tipc: delete TIPC_ADVANCED Kconfig variable 2012-11-22 14:33:29 -05:00
unix net: Don't export sysctls to unprivileged users 2012-11-18 20:30:55 -05:00
wanrouter wanmain: comparing array with NULL 2012-07-24 13:55:21 -07:00
wimax
wireless Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next 2012-11-26 14:46:41 -05:00
x25
xfrm Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2012-11-22 15:25:55 -05:00
compat.c make get_file() return its argument 2012-09-26 21:10:25 -04:00
Kconfig net: Add INET dependency on aes crypto for the sake of TCP fastopen. 2012-09-04 14:20:14 -04:00
Makefile ipv6: Preserve ipv6 functionality needed by NET 2012-11-18 02:34:00 -05:00
nonet.c
socket.c cgroup: net_cls: Rework update socket logic 2012-10-26 03:40:51 -04:00
sysctl_net.c user_ns: get rid of duplicate code in net_ctl_permissions 2012-11-18 20:32:45 -05:00