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* *: add VRF ID in the API message headerFeng Lu2015-06-031-12/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The API messages are used by zebra to exchange the interfaces, addresses, routes and router-id information with its clients. To distinguish which VRF the information belongs to, a new field "VRF ID" is added in the message header. And hence the message version is increased to 3. * The new field "VRF ID" in the message header: Length (2 bytes) Marker (1 byte) Version (1 byte) VRF ID (2 bytes, newly added) Command (2 bytes) - Client side: - zclient_create_header() adds the VRF ID in the message header. - zclient_read() extracts and validates the VRF ID from the header, and passes the VRF ID to the callback functions registered to the API messages. - All relative functions are appended with a new parameter "vrf_id", including all the callback functions. - "vrf_id" is also added to "struct zapi_ipv4" and "struct zapi_ipv6". Clients need to correctly set the VRF ID when using the API functions zapi_ipv4_route() and zapi_ipv6_route(). - Till now all messages sent from a client have the default VRF ID "0" in the header. - The HELLO message is special, which is used as the heart-beat of a client, and has no relation with VRF. The VRF ID in the HELLO message header will always be 0 and ignored by zebra. - Zebra side: - zserv_create_header() adds the VRF ID in the message header. - zebra_client_read() extracts and validates the VRF ID from the header, and passes the VRF ID to the functions which process the received messages. - All relative functions are appended with a new parameter "vrf_id". * Suppress the messages in a VRF which a client does not care: Some clients may not care about the information in the VRF X, and zebra should not send the messages in the VRF X to those clients. Extra flags are used to indicate which VRF is registered by a client, and a new message ZEBRA_VRF_UNREGISTER is introduced to let a client can unregister a VRF when it does not need any information in that VRF. A client sends any message other than ZEBRA_VRF_UNREGISTER in a VRF will automatically register to that VRF. - lib/vrf: A new utility "VRF bit-map" is provided to manage the flags for VRFs, one bit per VRF ID. - Use vrf_bitmap_init()/vrf_bitmap_free() to initialize/free a bit-map; - Use vrf_bitmap_set()/vrf_bitmap_unset() to set/unset a flag in the given bit-map, corresponding to the given VRF ID; - Use vrf_bitmap_check() to test whether the flag, in the given bit-map and for the given VRF ID, is set. - Client side: - In "struct zclient", the following flags are changed from "u_char" to "vrf_bitmap_t": redist[ZEBRA_ROUTE_MAX] default_information These flags are extended for each VRF, and controlled by the clients themselves (or with the help of zclient_redistribute() and zclient_redistribute_default()). - Zebra side: - In "struct zserv", the following flags are changed from "u_char" to "vrf_bitmap_t": redist[ZEBRA_ROUTE_MAX] redist_default ifinfo ridinfo These flags are extended for each VRF, as the VRF registration flags. They are maintained on receiving a ZEBRA_XXX_ADD or ZEBRA_XXX_DELETE message. When sending an interface/address/route/router-id message in a VRF to a client, if the corresponding VRF registration flag is not set, this message will not be dropped by zebra. - A new function zread_vrf_unregister() is introduced to process the new command ZEBRA_VRF_UNREGISTER. All the VRF registration flags are cleared for the requested VRF. Those clients, who support only the default VRF, will never receive a message in a non-default VRF, thanks to the filter in zebra. * New callback for the event of successful connection to zebra: - zclient_start() is splitted, keeping only the code of connecting to zebra. - Now zclient_init()=>zclient_connect()=>zclient_start() operations are purely dealing with the connection to zbera. - Once zebra is successfully connected, at the end of zclient_start(), a new callback is used to inform the client about connection. - Till now, in the callback of connect-to-zebra event, all clients send messages to zebra to request the router-id/interface/routes information in the default VRF. Of corse in future the client can do anything it wants in this callback. For example, it may send requests for both default VRF and some non-default VRFs. Signed-off-by: Feng Lu <lu.feng@6wind.com> Reviewed-by: Alain Ritoux <alain.ritoux@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Acked-by: Donald Sharp <sharpd@cumulusnetworks.com>
* *: call if_init()/if_terminate() from vrf_init()/vrf_terminate()Feng Lu2015-06-021-1/+1
| | | | | | | | | | | | | | | | | | Later, an interface will belong to a specific VRF, and the interface initialization will be a part of the VRF initialization. So now call if_init() from vrf_init(), and if_terminate() from vrf_terminate(). Daemons have the according changes: - if if_init() was called or "iflist" was initialized, now call vrf_init() instead; - if if_terminate() was called or "iflist" was destroyed, now call vrf_terminate() instead. Signed-off-by: Feng Lu <lu.feng@6wind.com> Reviewed-by: Alain Ritoux <alain.ritoux@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Acked-by: Vincent JARDIN <vincent.jardin@6wind.com> Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
* ripngd: add ECMP supportFeng Lu2015-05-271-30/+7
| | | | | | | | | | | | | | | | | | | | | | | | * Each node in the routing table is changed into a list, holding the multiple equal-cost paths. * If one of the multiple entries gets less-preferred (greater metric or greater distance), it will be directly deleted instead of starting a garbage-collection timer for it. The garbage-collection timer is started only when the last entry in the list gets INFINITY. * Some new functions are used to maintain the ECMP list. And hence ripng_route_process(), ripng_redistribute_add() and ripng_timeout() are significantly simplified. * ripng_zebra_ipv6_add() and ripng_zebra_ipv6_delete() now can share the common code. The common part is moved to ripng_zebra_ipv6_send(). Signed-off-by: Feng Lu <lu.feng@6wind.com> Reviewed-by: Alain Ritoux <alain.ritoux@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Acked-by: Vincent Jardin <vincent.jardin@6wind.com> Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
* *: nuke ^L (page feed)David Lamparter2014-06-041-5/+5
| | | | | | | | | | | | | | Quagga sources have inherited a slew of Page Feed (^L, \xC) characters from ancient history. Among other things, these break patchwork's XML-RPC API because \xC is not a valid character in XML documents. Nuke them from high orbit. Patches can be adapted simply by: sed -e 's%^L%%' -i filename.patch (you can type page feeds in some environments with Ctrl-V Ctrl-L) Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
* ripngd: compiler warnings cleanupStephen Hemminger2009-12-101-22/+9
| | | | | | | | | | * ripngd/ripng_interface.c * ripng_check_max_mtu(): unused, sayonara * ripng_interface_down(): cast flag arguments to logging function * ripng_interface_add(): idem * ripng_interface_delete(): idem * ripngd/ripngd.c * ripng_recv_packet(): avoid aliasing warning dereferencing pointer
* [global] interface flags format warningsStephen Hemminger2009-07-281-5/+6
| | | | | */*: ifp->flags is 64 bit unsigned which can not be handled by %l on 32 bit architectures - requires %ll and the appropriate cast.
* [cleanup] Make command nodes staticStephen Hemminger2009-06-121-1/+1
| | | | | The cmd_nodes used to configure vty, can mostly be static so (basic data hiding 101).
* [trivia] finish off static'ification of ospf6d and ripngdPaul Jakma2008-08-221-33/+32
| | | | | | | | | 2008-08-15 Paul Jakma <paul.jakma@sun.com> * {ospf6d,ripngd}/*: Finish job of marking functions as static, or exporting declarations for them, to quell warning noise with Quagga's GCC default high-level of warning flags. Thus allowing remaining, more useful warnings to be more easily seen.
* [ripngd] CID #72, remove unneeded NULL checkPaul Jakma2006-05-111-11/+9
| | | | | | | 2006-05-11 Paul Jakma <paul.jakma@sun.com> * ripng_interface.c: (ripng_interface_address_add) Remove unneeded NULL check, Coverity CID #72.
* * prefix.[hc]: Pass argument to the inet6_ntoa by value making it morehasso2005-04-081-1/+1
| | | | | | inet_ntoa alike. * ripngd.[hc], ripng_interface.c, ripng_peer.c: inet6_ntoa() takes argument now by value.
* 2005-04-07 Paul Jakma <paul.jakma@sun.com>quagga_post_listloop_cleanuppaul2005-04-071-50/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | * (global): Fix up list loops to match changes in lib/linklist, and some basic auditing of usage. * configure.ac: define QUAGGA_NO_DEPRECATED_INTERFACES * HACKING: Add notes about deprecating interfaces and commands. * lib/linklist.h: Add usage comments. Rename getdata macro to listgetdata. Rename nextnode to listnextnode and fix its odd behaviour to be less dangerous. Make listgetdata macro assert node is not null, NULL list entries should be bug condition. ALL_LIST_ELEMENTS, new macro, forward-referencing macro for use with for loop, Suggested by Jim Carlson of Sun. Add ALL_LIST_ELEMENTS_RO for cases which obviously do not need the "safety" of previous macro. LISTNODE_ADD and DELETE macros renamed to ATTACH, DETACH, to distinguish from the similarly named functions, and reflect their effect better. Add a QUAGGA_NO_DEPRECATED_INTERFACES define guarded section with the old defines which were modified above, for backwards compatibility - guarded to prevent Quagga using it.. * lib/linklist.c: fix up for linklist.h changes. * ospf6d/ospf6_abr.c: (ospf6_abr_examin_brouter) change to a single scan of the area list, rather than scanning all areas first for INTER_ROUTER and then again for INTER_NETWORK. According to 16.2, the scan should be area specific anyway, and further ospf6d does not seem to implement 16.3 anyway.
* * lib/prefix.[hc]: inet6_ntoa utility function copied fromquagga_pre_listloop_cleanuphasso2005-04-051-1/+1
| | | | | | | | ripngd/ripngd.c (inet6_ntop). * ripngd.[hc]: Remove inet6_ntop() and any usage of it. inet6_ntoa() from lib is used now. * ripng_interface.c: inet6_ntop() -> inet6_ntoa(). * ripng_peer.c: inet6_ntop() -> inet6_ntoa().
* 2005-04-02 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs2005-04-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix problems when netlink interfaces are renamed (same ifindex used for a new interface). Start cleaning up some problems with the way interface names are handled. * interface.c: (if_new_intern_ifindex) Remove obsolete function. (if_delete_update) After distributing the interface deletion message, set ifp->ifindex to IFINDEX_INTERNAL. (if_dump_vty) Detect pseudo interface by checking if ifp->ifindex is IFINDEX_INTERNAL. (zebra_interface) Check return code from interface_cmd.func. Do not set internal ifindex values to if_new_intern_ifindex(), since we now use IFINDEX_INTERNAL for all pseudo interfaces. * kernel_socket.c: (ifm_read) Fix code and comments to reflect that all internal interfaces now have ifp->ifindex set to IFINDEX_INTERNAL. * rt_netlink.c: (set_ifindex) New function used to update ifp->ifindex. Detects interface rename events by checking if that ifindex is already being used. If it is, delete the old interface before assigning the ifindex to the new interface. (netlink_interface, netlink_link_change) Call set_ifindex to update the ifindex. * if.h: Remove define for IFINDEX_INTERNBASE and add define IFINDEX_INTERNAL 0, since all internal (i.e. non-kernel) pseudo- interfaces should have ifindex set to 0. (if_new) Remove function. (if_delete_retain) New function to delete an interface without removing from iflist and freeing the structure. (ifname2ifindex) New function. * if.c: (if_new) Remove function (absorb into if_create). (if_create) Replace function if_new with call to calloc. Set ifp->ifindex to IFINDEX_INTERNAL. Fix off-by-one error in assert to check length of interface name. Add error message if interface with this name already exists. (if_delete_retain) New function to delete an interface without removing from iflist and freeing the structure. (if_delete) Implement with help of if_delete_retain. (ifindex2ifname) Reimplement using if_lookup_by_index. (ifname2ifindex) New function to complement ifindex2ifname. (interface) The interface command should check the name length and fail with a warning message if it is too long. (no_interface) Fix spelling in warning message. (if_nametoindex) Reimplement using if_lookup_by_name. (if_indextoname, ifaddr_ipv4_lookup) Reimplement using if_lookup_by_index. * bgp_zebra.c: (bgp_interface_delete) After deleting, set ifp->ifindex to IFINDEX_INTERNAL. * isis_zebra.c: (isis_zebra_if_del) Call if_delete_retain instead of if_delete, since it is generally not safe to remove interface structures. After deleting, set ifp->ifindex to IFINDEX_INTERNAL. (zebra_interface_if_lookup) Tighten up code. * ospf6_zebra.c: (ospf6_zebra_if_del) Previously, this whole function was commented out. But this is not safe: we should at least update the ifindex when the interface is deleted. So the new version updates the interface status and sets ifp->ifindex to IFINDEX_INTERNAL. (ospf6_zebra_route_update) Use if_indextoname properly. * ospf_vty.c: (show_ip_ospf_interface_sub) Show ifindex and interface flags to help with debugging. * ospf_zebra.c: (ospf_interface_delete) After deleting, set ifp->ifindex to IFINDEX_INTERNAL. (zebra_interface_if_lookup) Make function static. Tighten up code. * rip_interface.c: (rip_interface_delete) After deleting, set ifp->ifindex to IFINDEX_INTERNAL. * ripng_interface.c: (ripng_interface_delete) After deleting, set ifp->ifindex to IFINDEX_INTERNAL.
* 2005-03-14 Paul Jakma <paul.jakma@sun.com>paul2005-03-141-6/+6
| | | | | | | | | | * (global) update all c files to match the lib/vector.h rename of (struct vector).active to max, and vector_max macro to vector_active. * lib/vector.h: Rename to (struct vector).max to slightly less confusing active, for the number of active slots, distinct from allocated or active-and-not-empty. Rename vector_max to vector_active for same reason.
* 2005-01-30 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs2005-01-301-2/+5
| | | | | * ripng_interface.c: (ripng_multicast_join) Save errno before calling ripngd_privs.change.
* 2004-12-08 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs2004-12-081-9/+9
| | | | * *.c: Change level of debug messages to LOG_DEBUG.
* 2004-11-19 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs2004-11-201-2/+2
| | | | | * global: Replace strerror with safe_strerror. And vtysh/vtysh.c needs to include "log.h" to pick up the declaration.
* Sync with changes in lib. Make more strings const.hasso2004-10-111-10/+10
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* Only warning left is the known lvalue problem in ripng_nexthop.c.hasso2004-10-081-6/+6
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* Remove usage of evil list and listnode typedefs.hasso2004-09-231-7/+7
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* Use ifp->mtu6 in ospf6d and ripngd.hasso2004-07-231-6/+6
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* 2004-07-01 Greg Troxel <gdt@fnord.ir.bbn.com>gdt2004-07-011-0/+14
| | | | | * ripng_interface.c (ripng_multicast_join): Use privs to do join, to work around bug on gif(4) on NetBSD 1.6.2.
* 2004-05-08 Paul Jakma <paul@dishone.st>paul2004-05-081-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * bgp_zebra.c: (bgp_interface_address_add) sync to zclient changes (bgp_interface_address_delete) ditto. (bgp_zebra_announce) ditto. (bgp_zebra_withdraw) ditto. * isis_zebra.c: Sync with zclient changes. * zclient.c (zapi_ipv4_route) Follow Sowmini's lead and describe message format. * ospf6_zebra.c: Sync to zclient changes * ospf_zebra.c: Sync with lib/zclient changes * rip_zebra.c: sync with zclient changes. * rip_interface.c: ditto. * ripng_{interface,zebra}.c: sync with zclient changes 2004-05-08 Sowmini Varadhan <sowmini.varadhan@sun.com> * zclient.c: (zapi_ipv4_add) collapsed into zapi_ipv4_route (zapi_ipv4_delete) ditto. (zapi_ipv4_route) add/delete a route by way of cmd arg. (zapi_ipv6_add) collapsed into zapi_ipv6_route. (zapi_ipv6_delete) ditto. (zapi_ipv6_route) add/delete a route by way of cmd arg. (zebra_interface_address_delete_read) collapsed into zebra_interface_address_read. (zebra_interface_address_delete_read) ditto. (zebra_interface_address_read) read address add/delete messages by way of type argument. Describe command message format. (zebra_interface_add_read) Unconditionally read new ifmtu6 field. Describe command message format. (zebra_interface_state_read) Unconditionally read new ifmtu6 field. (zclient_redistribute_set) Collapsed into zclient_redistribute (zclient_redistribute_unset) ditto (zclient_redistribute) set/unset redistribution. (zclient_redistribute_default_set) Collapsed into zclient_redistribute_default. (zclient_redistribute_default_unset) ditto. (zclient_redistribute_default) Redistribute default set/unset. * zclient.h: delete zapi_ipv{4,6}_add, zapi_ipv{4,6}_delete. Add zapi_ipv{4,6}_route. delete zclient_redistribute_set/unset. Add zclient_redistribute. Ditto for zclient_redistribute_default_{set/unset}.
* Really ripngd should either leave groups on down interfaces, or keepgdt2004-01-041-0/+12
| | | | | | | | | | | | | | | | track of on which interfaces joins have occurred. This is complicated by the possible lack of a clear behavior spec on whether interfaces keep their joined group lists across a down/up/down transition. (On NetBSD, they do.) 2004-01-03 Greg Troxel <gdt@ahi.ir.bbn.com> * ripng_interface.c (ripng_multicast_join): If IPV6_JOIN_GROUP returns EADDRINUSE, consider the join successful. This happens when an interface goes down and comes back because ripng_multicast_leave does not invoke the LEAVE_GROUP operation if the interface is down. Solves problem of ripng stopping working on an interface which goes down and then comes back up (on NetBSD).
* Ripngd part of 6Wind patch.hasso2003-05-251-77/+471
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* From: Hasso Tepper <hasso@estpak.ee>paul2003-05-231-0/+1
| | | | | | | | Add the 'no interface' command to all the daemons and vtysh. now it's possible to delete interface from routeing daemons as well only if it doesn't exist in os. http://hasso.linux.ee/zebra/ht-no_interface_fix.patch
* Undo Hasso last patch, about to apply a slightly updated patch.paul2003-05-231-1/+0
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* From: Hasso Tepper <hasso@estpak.ee>paul2003-05-231-0/+1
| | | | | | http://hasso.linux.ee/zebra/ht-no_interface-23052003.patch Add the 'no interface' command to all the daemons and vtysh.
* Initial revisionpaul2002-12-131-0/+835
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