Shaun Pereira
ebc3f64b86
[X25]: Fast select with no restriction on response
...
This patch is a follow up to patch 1 regarding "Selective Sub Address
matching with call user data". It allows use of the Fast-Select-Acceptance
optional user facility for X.25.
This patch just implements fast select with no restriction on response
(NRR). What this means (according to ITU-T Recomendation 10/96 section
6.16) is that if in an incoming call packet, the relevant facility bits are
set for fast-select-NRR, then the called DTE can issue a direct response to
the incoming packet using a call-accepted packet that contains
call-user-data. This patch allows such a response.
The called DTE can also respond with a clear-request packet that contains
call-user-data. However, this feature is currently not implemented by the
patch.
How is Fast Select Acceptance used?
By default, the system does not allow fast select acceptance (as before).
To enable a response to fast select acceptance,
After a listen socket in created and bound as follows
socket(AF_X25, SOCK_SEQPACKET, 0);
bind(call_soc, (struct sockaddr *)&locl_addr, sizeof(locl_addr));
but before a listen system call is made, the following ioctl should be used.
ioctl(call_soc,SIOCX25CALLACCPTAPPRV);
Now the listen system call can be made
listen(call_soc, 4);
After this, an incoming-call packet will be accepted, but no call-accepted
packet will be sent back until the following system call is made on the socket
that accepts the call
ioctl(vc_soc,SIOCX25SENDCALLACCPT);
The network (or cisco xot router used for testing here) will allow the
application server's call-user-data in the call-accepted packet,
provided the call-request was made with Fast-select NRR.
Signed-off-by: Shaun Pereira <spereira@tusc.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-06-22 22:16:17 -07:00
..
bluetooth
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2005-04-16 15:20:36 -07:00
irda
[PATCH] x86_64: Make IRDA devices are not really ISA devices not depend on CONFIG_ISA
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sctp
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tc_act
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act_api.h
Linux-2.6.12-rc2
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2005-04-16 15:20:36 -07:00
ah.h
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arp.h
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datalink.h
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if_inet6.h
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inet_common.h
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inet_ecn.h
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inetpeer.h
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ip6_checksum.h
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ip6_tunnel.h
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ip_mp_alg.h
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ip_vs.h
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ipconfig.h
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ipip.h
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ipx.h
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iw_handler.h
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lapb.h
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llc.h
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llc_c_st.h
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llc_conn.h
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llc_if.h
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llc_pdu.h
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llc_s_ac.h
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llc_s_ev.h
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llc_s_st.h
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llc_sap.h
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ndisc.h
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[NEIGHBOUR]: Remove unused fields in struct neigh_parms and neigh_table
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netrom.h
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p8022.h
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pkt_act.h
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pkt_cls.h
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pkt_sched.h
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protocol.h
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psnap.h
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raw.h
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rawv6.h
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rose.h
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route.h
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sch_generic.h
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scm.h
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slhc_vj.h
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snmp.h
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sock.h
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syncppp.h
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2005-04-16 15:20:36 -07:00
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tcp_ecn.h
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2005-06-18 22:47:21 -07:00
transp_v6.h
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2005-04-16 15:20:36 -07:00
udp.h
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2005-05-05 16:36:49 -07:00
x25.h
[X25]: Fast select with no restriction on response
2005-06-22 22:16:17 -07:00
x25device.h
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2005-04-16 15:20:36 -07:00
xfrm.h
[IPSEC]: Add xfrm_state_afinfo->init_flags
2005-06-20 13:19:41 -07:00