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authorLinus Torvalds2019-07-11 19:55:49 +0200
committerLinus Torvalds2019-07-11 19:55:49 +0200
commit237f83dfbe668443b5e31c3c7576125871cca674 (patch)
tree11848a8d0aa414a1d3ce2024e181071b1d9dea08 /Documentation/isdn/README.diversion
parentMerge tag 'clone3-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/brau... (diff)
parentnet/mlx5e: Return in default case statement in tx_post_resync_params (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller: "Some highlights from this development cycle: 1) Big refactoring of ipv6 route and neigh handling to support nexthop objects configurable as units from userspace. From David Ahern. 2) Convert explored_states in BPF verifier into a hash table, significantly decreased state held for programs with bpf2bpf calls, from Alexei Starovoitov. 3) Implement bpf_send_signal() helper, from Yonghong Song. 4) Various classifier enhancements to mvpp2 driver, from Maxime Chevallier. 5) Add aRFS support to hns3 driver, from Jian Shen. 6) Fix use after free in inet frags by allocating fqdirs dynamically and reworking how rhashtable dismantle occurs, from Eric Dumazet. 7) Add act_ctinfo packet classifier action, from Kevin Darbyshire-Bryant. 8) Add TFO key backup infrastructure, from Jason Baron. 9) Remove several old and unused ISDN drivers, from Arnd Bergmann. 10) Add devlink notifications for flash update status to mlxsw driver, from Jiri Pirko. 11) Lots of kTLS offload infrastructure fixes, from Jakub Kicinski. 12) Add support for mv88e6250 DSA chips, from Rasmus Villemoes. 13) Various enhancements to ipv6 flow label handling, from Eric Dumazet and Willem de Bruijn. 14) Support TLS offload in nfp driver, from Jakub Kicinski, Dirk van der Merwe, and others. 15) Various improvements to axienet driver including converting it to phylink, from Robert Hancock. 16) Add PTP support to sja1105 DSA driver, from Vladimir Oltean. 17) Add mqprio qdisc offload support to dpaa2-eth, from Ioana Radulescu. 18) Add devlink health reporting to mlx5, from Moshe Shemesh. 19) Convert stmmac over to phylink, from Jose Abreu. 20) Add PTP PHC (Physical Hardware Clock) support to mlxsw, from Shalom Toledo. 21) Add nftables SYNPROXY support, from Fernando Fernandez Mancera. 22) Convert tcp_fastopen over to use SipHash, from Ard Biesheuvel. 23) Track spill/fill of constants in BPF verifier, from Alexei Starovoitov. 24) Support bounded loops in BPF, from Alexei Starovoitov. 25) Various page_pool API fixes and improvements, from Jesper Dangaard Brouer. 26) Just like ipv4, support ref-countless ipv6 route handling. From Wei Wang. 27) Support VLAN offloading in aquantia driver, from Igor Russkikh. 28) Add AF_XDP zero-copy support to mlx5, from Maxim Mikityanskiy. 29) Add flower GRE encap/decap support to nfp driver, from Pieter Jansen van Vuuren. 30) Protect against stack overflow when using act_mirred, from John Hurley. 31) Allow devmap map lookups from eBPF, from Toke Høiland-Jørgensen. 32) Use page_pool API in netsec driver, Ilias Apalodimas. 33) Add Google gve network driver, from Catherine Sullivan. 34) More indirect call avoidance, from Paolo Abeni. 35) Add kTLS TX HW offload support to mlx5, from Tariq Toukan. 36) Add XDP_REDIRECT support to bnxt_en, from Andy Gospodarek. 37) Add MPLS manipulation actions to TC, from John Hurley. 38) Add sending a packet to connection tracking from TC actions, and then allow flower classifier matching on conntrack state. From Paul Blakey. 39) Netfilter hw offload support, from Pablo Neira Ayuso" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2080 commits) net/mlx5e: Return in default case statement in tx_post_resync_params mlx5: Return -EINVAL when WARN_ON_ONCE triggers in mlx5e_tls_resync(). net: dsa: add support for BRIDGE_MROUTER attribute pkt_sched: Include const.h net: netsec: remove static declaration for netsec_set_tx_de() net: netsec: remove superfluous if statement netfilter: nf_tables: add hardware offload support net: flow_offload: rename tc_cls_flower_offload to flow_cls_offload net: flow_offload: add flow_block_cb_is_busy() and use it net: sched: remove tcf block API drivers: net: use flow block API net: sched: use flow block API net: flow_offload: add flow_block_cb_{priv, incref, decref}() net: flow_offload: add list handling functions net: flow_offload: add flow_block_cb_alloc() and flow_block_cb_free() net: flow_offload: rename TCF_BLOCK_BINDER_TYPE_* to FLOW_BLOCK_BINDER_TYPE_* net: flow_offload: rename TC_BLOCK_{UN}BIND to FLOW_BLOCK_{UN}BIND net: flow_offload: add flow_block_cb_setup_simple() net: hisilicon: Add an tx_desc to adapt HI13X1_GMAC net: hisilicon: Add an rx_desc to adapt HI13X1_GMAC ...
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-The isdn diversion services are a supporting module working together with
-the isdn4linux and the HiSax module for passive cards.
-Active cards, TAs and cards using a own or other driver than the HiSax
-module need to be adapted to the HL<->LL interface described in a separate
-document. The diversion services may be used with all cards supported by
-the HiSax driver.
-The diversion kernel interface and controlling tool divertctrl were written
-by Werner Cornelius (werner@isdn4linux.de or werner@titro.de) under the
-GNU General Public License.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-Table of contents
-=================
-
-1. Features of the i4l diversion services
- (Or what can the i4l diversion services do for me)
-
-2. Required hard- and software
-
-3. Compiling, installing and loading/unloading the module
- Tracing calling and diversion information
-
-4. Tracing calling and diversion information
-
-5. Format of the divert device ASCII output
-
-
-1. Features of the i4l diversion services
- (Or what can the i4l diversion services do for me)
-
- The i4l diversion services offers call forwarding and logging normally
- only supported by isdn phones. Incoming calls may be diverted
- unconditionally (CFU), when not reachable (CFNR) or on busy condition
- (CFB).
- The diversions may be invoked statically in the providers exchange
- as normally done by isdn phones. In this case all incoming calls
- with a special (or all) service identifiers are forwarded if the
- forwarding reason is met. Activated static services may also be
- interrogated (queried).
- The i4l diversion services additionally offers a dynamic version of
- call forwarding which is not preprogrammed inside the providers exchange
- but dynamically activated by i4l.
- In this case all incoming calls are checked by rules that may be
- compared to the mechanism of ipfwadm or ipchains. If a given rule matches
- the checking process is finished and the rule matching will be applied
- to the call.
- The rules include primary and secondary service identifiers, called
- number and subaddress, callers number and subaddress and whether the rule
- matches to all filtered calls or only those when all B-channel resources
- are exhausted.
- Actions that may be invoked by a rule are ignore, proceed, reject,
- direct divert or delayed divert of a call.
- All incoming calls matching a rule except the ignore rule a reported and
- logged as ASCII via the proc filesystem (/proc/net/isdn/divert). If proceed
- is selected the call will be held in a proceeding state (without ringing)
- for a certain amount of time to let an external program or client decide
- how to handle the call.
-
-
-2. Required hard- and software
-
- For using the i4l diversion services the isdn line must be of a EURO/DSS1
- type. Additionally the i4l services only work together with the HiSax
- driver for passive isdn cards. All HiSax supported cards may be used for
- the diversion purposes.
- The static diversion services require the provider having static services
- CFU, CFNR, CFB activated on an MSN-line. The static services may not be
- used on a point-to-point connection. Further the static services are only
- available in some countries (for example germany). Countries requiring the
- keypad protocol for activating static diversions (like the netherlands) are
- not supported but may use the tty devices for this purpose.
- The dynamic diversion services may be used in all countries if the provider
- enables the feature CF (call forwarding). This should work on both MSN- and
- point-to-point lines.
- To add and delete rules the additional divertctrl program is needed. This
- program is part of the isdn4kutils package.
-
-3. Compiling, installing and loading/unloading the module
- Tracing calling and diversion information
-
-
- To compile the i4l code with diversion support you need to say yes to the
- DSS1 diversion services when selecting the i4l options in the kernel
- config (menuconfig or config).
- After having properly activated a make modules and make modules_install all
- required modules will be correctly installed in the needed modules dirs.
- As the diversion services are currently not included in the scripts of most
- standard distributions you will have to add a "insmod dss1_divert" after
- having loaded the global isdn module.
- The module can be loaded without any command line parameters.
- If the module is actually loaded and active may be checked with a
- "cat /proc/modules" or "ls /proc/net/isdn/divert". The divert file is
- dynamically created by the diversion module and removed when the module is
- unloaded.
-
-
-4. Tracing calling and diversion information
-
- You also may put a "cat /proc/net/isdn/divert" in the background with the
- output redirected to a file. Then all actions of the module are logged.
- The divert file in the proc system may be opened more than once, so in
- conjunction with inetd and a small remote client on other machines inside
- your network incoming calls and reactions by the module may be shown on
- every listening machine.
- If a call is reported as proceeding an external program or client may
- specify during a certain amount of time (normally 4 to 10 seconds) what
- to do with that call.
- To unload the module all open files to the device in the proc system must
- be closed. Otherwise the module (and isdn.o) may not be unloaded.
-
-5. Format of the divert device ASCII output
-
- To be done later
-