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Bernard Pidoux fe2c802ab6 rose: improving AX25 routing frames via ROSE network 
ROSE network is organized through nodes connected via hamradio or Internet.
AX25 packet radio frames sent to a remote ROSE address destination are routed
through these nodes.

Without the present patch, automatic routing mechanism did not work optimally
due to an improper parameter checking.

rose_get_neigh() function is called either by rose_connect() or by
rose_route_frame().

In the case of a call from rose_connect(), f0 timer is checked to find if a connection
is already pending. In that case it returns the address of the neighbour, or returns a NULL otherwise.

When called by rose_route_frame() the purpose was to route a packet AX25 frame
through an adjacent node given a destination rose address.
However, in that case, t0 timer checked does not indicate if the adjacent node
is actually connected even if the timer is not null. Thus, for each frame sent, the
function often tried to start a new connexion even if the adjacent node was already connected.

The patch adds a "new" parameter that is true when the function is called by
rose route_frame().
This instructs rose_get_neigh() to check node parameter "restarted". 
If restarted is true it means that the route to the destination address is opened via a neighbour
node already connected.
If "restarted" is false the function returns a NULL.
In that case the calling function will initiate a new connection as before.

This results in a fast routing of frames, from nodes to nodes, until
destination is reached, as originaly specified by ROSE protocole.

Signed-off-by: Bernard Pidoux <f6bvp@amsat.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 17:08:32 -07:00
..
9p 9p: fix error path during early mount 2008-05-14 19:23:27 -05:00
bluetooth bluetooth: Make hci_sock_cleanup() return void 2008-03-05 18:47:03 -08:00
irda irda: Fix a misalign access issue. (v2) 2008-05-13 23:25:57 -07:00
iucv [AF_IUCV]: postpone receival of iucv-packets 2007-10-10 16:54:51 -07:00
netfilter netfilter: nf_conntrack: remove unnecessary function declaration 2008-06-09 16:00:22 -07:00
netns netns: introduce the net_hash_mix "salt" for hashes 2008-06-16 17:14:11 -07:00
sctp sctp: Kill SCTP_SOCK_SLEEP_{PRE,POST}, unused. 2008-06-17 00:40:36 -07:00
tc_act [PKT_SCHED]: Add stateless NAT 2007-10-10 16:53:11 -07:00
tipc tipc: Fix race condition when creating socket or native port 2008-05-12 15:42:28 -07:00
act_api.h [NET_SCHED]: act_api: use PTR_ERR in tcf_action_init/tcf_action_get 2008-01-28 15:11:17 -08:00
addrconf.h ipv6 netns: Address labels per namespace 2008-06-12 02:38:15 +09:00
af_rxrpc.h
af_unix.h [AF_UNIX]: Remove unused declaration of sysctl_unix_max_dgram_qlen. 2008-01-28 14:57:13 -08:00
ah.h [IPSEC]: Get rid of ipv6_{auth,esp,comp}_hdr 2007-10-10 16:55:55 -07:00
arp.h [NETFILTER]: ebtables: remove casts, use consts 2008-01-31 19:27:33 -08:00
atmclip.h
ax25.h [AX25] ax25_ds_timer: use mod_timer instead of add_timer 2008-02-12 17:53:34 -08:00
ax88796.h ax88796: add 93cx6 eeprom support 2007-10-10 16:53:56 -07:00
cfg80211.h nl80211/cfg80211: support for mesh, sta dumping 2008-03-06 15:30:41 -05:00
checksum.h [NET]: Move netfilter checksum helpers to net/core/utils.c 2008-01-28 14:55:14 -08:00
cipso_ipv4.h
compat.h net: Add compat support for getsockopt (MCAST_MSFILTER) 2008-04-29 03:23:22 -07:00
datalink.h
dn.h
dn_dev.h
dn_fib.h
dn_neigh.h
dn_nsp.h
dn_route.h [NET]: Wrap netdevice hardware header creation. 2007-10-10 16:52:50 -07:00
dsfield.h [NET]: Constify include/net/dsfield.h 2008-01-28 14:55:58 -08:00
dst.h [NET]: uninline dst_release 2008-03-27 17:53:31 -07:00
esp.h [IPSEC]: Use crypto_aead and authenc in ESP 2008-01-31 19:27:02 -08:00
fib_rules.h [NETNS]: Add netns refcnt debug to fib rules. 2008-04-16 02:01:56 -07:00
flow.h [IPV4]: Remove unused multipath cached routing defintion in net/flow.h 2008-01-28 15:00:20 -08:00
gen_stats.h [NET_SCHED]: Convert packet schedulers from rtnetlink to new netlink API 2008-01-28 15:11:10 -08:00
genetlink.h netlink: Improve returned error codes 2008-06-03 16:36:54 -07:00
icmp.h [NETNS][ICMP]: Move ICMP sysctls on struct net. 2008-03-26 01:55:37 -07:00
ieee80211.h remove ieee80211_wx_{get,set}_auth() 2008-05-07 15:02:14 -04:00
ieee80211_crypt.h
ieee80211_radiotap.h
if_inet6.h ipv6 addrconf: Remove IFA_GLOBAL definition from include/net/if_inet6.h. 2008-06-12 02:38:13 +09:00
inet6_connection_sock.h
inet6_hashtables.h netns: introduce the net_hash_mix "salt" for hashes 2008-06-16 17:14:11 -07:00
inet_common.h [NETNS]: Inet control socket should not hold a namespace. 2008-04-03 14:28:30 -07:00
inet_connection_sock.h [INET]: Rename inet_csk_ctl_sock_create to inet_ctl_sock_create. 2008-04-03 14:22:32 -07:00
inet_ecn.h [IPV6]: Use appropriate sock tclass setting for routing lookup. 2008-04-13 23:40:51 -07:00
inet_frag.h [NET]: Rename inet_frag.h identifiers COMPLETE, FIRST_IN, LAST_IN to INET_FRAG_* 2008-03-28 16:35:27 -07:00
inet_hashtables.h netns: introduce the net_hash_mix "salt" for hashes 2008-06-16 17:14:11 -07:00
inet_sock.h netns: introduce the net_hash_mix "salt" for hashes 2008-06-16 17:14:11 -07:00
inet_timewait_sock.h [NETNS]: Compilation warnings under CONFIG_NET_NS. 2008-03-26 00:48:17 -07:00
inetpeer.h net: remove CVS keywords 2008-06-11 21:00:38 -07:00
ip.h ip: Make use of the inline function dst_metric_locked() 2008-05-04 22:12:43 -07:00
ip6_checksum.h
ip6_fib.h [NETNS][IPV6] rt6_info - move rt6_info structure inside the namespace 2008-03-04 13:48:30 -08:00
ip6_route.h [IPV6]: Make address arguments const. 2008-04-12 13:43:18 +09:00
ip6_tunnel.h net: remove CVS keywords 2008-06-11 21:00:38 -07:00
ip_fib.h [IPV4]: Fix compile error building without CONFIG_FS_PROC 2008-02-05 02:54:16 -08:00
ip_vs.h ipvs: fix oops in backup for fwmark conn templates 2008-04-29 03:21:23 -07:00
ipcomp.h [IPSEC]: Get rid of ipv6_{auth,esp,comp}_hdr 2007-10-10 16:55:55 -07:00
ipconfig.h net: remove CVS keywords 2008-06-11 21:00:38 -07:00
ipip.h tunnels: Remove stat member from ip_tunnel struct. 2008-05-21 14:16:36 -07:00
ipv6.h net: remove CVS keywords 2008-06-11 21:00:38 -07:00
ipx.h
iw_handler.h [NL80211]: add netlink interface to cfg80211 2007-10-10 16:52:14 -07:00
lapb.h
llc.h [LLC]: station source mac address 2008-03-28 16:28:36 -07:00
llc_c_ac.h
llc_c_ev.h
llc_c_st.h
llc_conn.h [NET]: Make socket creation namespace safe. 2007-10-10 16:49:07 -07:00
llc_if.h [LLC]: Kill static inline llc_addrany 2008-02-29 11:46:17 -08:00
llc_pdu.h [LLC]: skb allocation size for responses 2008-03-31 21:02:47 -07:00
llc_s_ac.h
llc_s_ev.h
llc_s_st.h
llc_sap.h [LLC]: skb allocation size for responses 2008-03-31 21:02:47 -07:00
mac80211.h mac80211: add utility function to get header length 2008-06-14 12:18:13 -04:00
mip6.h [IPV6] MIP6: Use our standard definitions for paddings. 2008-04-12 13:43:22 +09:00
ndisc.h ndisc: Add missing strategies for per-device retrans timer/reachable time settings. 2008-05-19 16:25:42 -07:00
neighbour.h Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-03-27 18:48:56 -07:00
net_namespace.h netns: Introduce sysctl root for read-only net sysctls. 2008-05-19 13:45:33 -07:00
netdma.h
netevent.h [NET]: Remove unnecessary inclusion of dst.h 2008-01-28 14:53:38 -08:00
netlabel.h Audit: collect sessionid in netlink messages 2008-04-28 06:18:03 -04:00
netlink.h netlink: Improve returned error codes 2008-06-03 16:36:54 -07:00
netrom.h
nexthop.h
p8022.h
pkt_cls.h [PKT_SCHED]: Pass real namespace in net scheduler classifiers. 2008-03-27 16:53:37 -07:00
pkt_sched.h [NET_SCHED]: Convert packet schedulers from rtnetlink to new netlink API 2008-01-28 15:11:10 -08:00
protocol.h [NETNS]: Drop packets in the non-initial namespace on the per/protocol basis. 2008-03-24 15:33:00 -07:00
psnap.h
raw.h [RAW]: Add raw_hashinfo member on struct proto. 2008-03-22 16:56:51 -07:00
rawv6.h [IPv6] RAW: Compact the API for the kernel 2008-01-28 14:54:29 -08:00
red.h
request_sock.h tcp: Revert 'process defer accept as established' changes. 2008-06-12 16:34:35 -07:00
rose.h rose: improving AX25 routing frames via ROSE network 2008-06-17 17:08:32 -07:00
route.h ipv4: Update MTU to all related cache entries in ip_rt_frag_needed() 2008-04-29 03:32:25 -07:00
rtnetlink.h [RTNL]: Introduce the rtnl_kill_links helper. 2008-04-16 00:46:52 -07:00
sch_generic.h [NET_SCHED]: Convert classifiers from rtnetlink to new netlink API 2008-01-28 15:11:11 -08:00
scm.h pid namespaces: changes to show virtual ids to user 2007-10-19 11:53:40 -07:00
slhc_vj.h
snmp.h net: remove CVS keywords 2008-06-11 21:00:38 -07:00
sock.h net: Kill SOCK_SLEEP_PRE and SOCK_SLEEP_POST, no users. 2008-06-17 01:09:00 -07:00
syncppp.h syncppp: Fix crashes. 2008-05-12 03:29:11 -07:00
tcp.h net: change proto destroy method to return void 2008-06-14 17:04:49 -07:00
tcp_states.h
timewait_sock.h
transp_v6.h net: change proto destroy method to return void 2008-06-14 17:04:49 -07:00
udp.h udp: reorder udp_iter_state to remove padding on 64bit builds 2008-06-13 03:03:17 -07:00
udplite.h [UDP]: Revert udplite and code split. 2008-03-06 16:22:02 -08:00
wext.h [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
wireless.h mac80211: allow disable FAT in specific configurations 2008-06-03 15:00:26 -04:00
x25.h
x25device.h
xfrm.h xfrm: convert empty xfrm_audit_* macros to functions 2008-05-03 21:03:01 -07:00