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2023-05-08ospfd, ospf6d: introduce the "graceful-restart hello-delay" commandRenato Westphal
This command makes unplanned GR more reliable by manipulating the sending of Grace-LSAs and Hello packets for a certain amount of time, increasing the chance that the neighboring routers are aware of the ongoing graceful restart before resuming normal OSPF operation. Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
2023-03-24*: Convert event.h to frrevent.hDonald Sharp
We should probably prevent any type of namespace collision with something else. Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2023-03-24*: Convert THREAD_XXX macros to EVENT_XXX macrosDonald Sharp
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2023-03-24*: Rename `struct thread` to `struct event`Donald Sharp
Effectively a massive search and replace of `struct thread` to `struct event`. Using the term `thread` gives people the thought that this event system is a pthread when it is not Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2023-03-24*: Rename thread.[ch] to event.[ch]Donald Sharp
This is a first in a series of commits, whose goal is to rename the thread system in FRR to an event system. There is a continual problem where people are confusing `struct thread` with a true pthread. In reality, our entire thread.c is an event system. In this commit rename the thread.[ch] files to event.[ch]. Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2023-02-09*: auto-convert to SPDX License IDsDavid Lamparter
Done with a combination of regex'ing and banging my head against a wall. Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2022-11-28ospfd: Do not auto-debug DR-Election notificationsDonald Sharp
Every 1/2 hour my logs are filling up with this: 2022-11-26 13:54:47.531 [DEBG] ospfd: [P4PQ9-K4XFD] DR-Election[1st]: Backup 192.168.119.229 2022-11-26 13:54:47.531 [DEBG] ospfd: [HBZ7F-65Y86] DR-Election[1st]: DR 192.168.119.229 2022-11-26 13:54:47.531 [DEBG] ospfd: [H01MF-RN00N] DR-Election[2nd]: Backup 0.0.0.0 2022-11-26 13:54:47.531 [DEBG] ospfd: [R7BJ4-KP8JT] DR-Election[2nd]: DR 192.168.119.229 This should be guarded by an if check to ensure that the operator really wants to see this. Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2022-07-21ospfd: Remove various macros that overlap THREAD_OFFDonald Sharp
Let's just use THREAD_OFF consistently in the code base instead of each daemon having a special macro that needs to be looked at and remembered what it does. Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2022-02-23*: Change thread->func to return void instead of intDonald Sharp
The int return value is never used. Modify the code base to just return a void instead. Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2021-03-17*: require semicolon after DEFINE_HOOK & co.David Lamparter
See previous commit. Signed-off-by: David Lamparter <equinox@diac24.net>
2020-10-22ospfd: replace inet_ntoaMark Stapp
Stop using inet_ntoa, use %pI4 etc or inet_ntop instead Signed-off-by: Mark Stapp <mjs@voltanet.io>
2020-09-22ospfd: GR helper exit scenariosrgirada
Description: The follwoing helper exit scenarios are handled. 1. Recv Max age grace LSA from RESTARTER. 2. Grace timer expiry. 3. Due to topo change if lsa check is enabled. Signed-off-by: Rajesh Girada <rgirada@vmware.com>
2020-03-04ospfd: Fix 4 levels of unnecessary indentationDonald Sharp
Optimize display of code a tiny bit so that we can actually have readable code. Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
2020-02-06*: Replace s_addr 0 => INADDR_ANYDonatas Abraitis
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2019-12-02*: generously apply constDavid Lamparter
const const const your boat, merrily down the stream... Signed-off-by: David Lamparter <equinox@diac24.net>
2019-02-25*: remove useless return variablesQuentin Young
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
2018-10-25*: spelchekDavid Lamparter
Signed-off-by: David Lamparter <equinox@diac24.net>
2018-10-02*: list_delete_and_null() -> list_delete()David Lamparter
Signed-off-by: David Lamparter <equinox@diac24.net>
2017-10-05*: Convert list_delete(struct list *) to ** to allow nullingDonald Sharp
Convert the list_delete(struct list *) function to use struct list **. This is to allow the list pointer to be nulled. I keep running into uses of this list_delete function where we forget to set the returned pointer to NULL and attempt to use it and then experience a crash, usually after the developer has long since left the building. Let's make the api explicit in it setting the list pointer to null. Cynical Prediction: This code will expose a attempt to use the NULL'ed list pointer in some obscure bit of code. Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
2017-07-17*: reindentreindent-master-afterwhitespace / reindent
indent.py `git ls-files | pcregrep '\.[ch]$' | pcregrep -v '^(ldpd|babeld|nhrpd)/'` Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2017-06-21*: simplify log message lookupQuentin Young
log.c provides functionality for associating a constant (typically a protocol constant) with a string and finding the string given the constant. However this is highly delicate code that is extremely prone to stack overflows and off-by-one's due to requiring the developer to always remember to update the array size constant and to do so correctly which, as shown by example, is never a good idea.b The original goal of this code was to try to implement lookups in O(1) time without a linear search through the message array. Since this code is used 99% of the time for debugs, it's worth the 5-6 additional cmp's worst case if it means we avoid explitable bugs due to oversights... Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
2017-05-15*: make consistent & update GPLv2 file headersDavid Lamparter
The FSF's address changed, and we had a mixture of comment styles for the GPL file header. (The style with * at the beginning won out with 580 to 141 in existing files.) Note: I've intentionally left intact other "variations" of the copyright header, e.g. whether it says "Zebra", "Quagga", "FRR", or nothing. Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2017-03-25*: use hooks for sending SNMP trapsDavid Lamparter
This means there are no ties into the SNMP code anymore other than the init call at startup. Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2017-03-08*: get rid of zlog(*, LOG_LEVEL, ...)David Lamparter
Result of running the following Coccinelle patch + fixups: <<EOF /* long-forms: zlog(NULL, <level>, ...) * => zlog_level(...) */ @@ expression list args; @@ - zlog(NULL, LOG_DEBUG, args) + zlog_debug(args) @@ expression list args; @@ - zlog(NULL, LOG_NOTICE, args) + zlog_notice(args) @@ expression list args; @@ - zlog(NULL, LOG_INFO, args) + zlog_info(args) @@ expression list args; @@ - zlog(NULL, LOG_WARNING, args) + zlog_warn(args) @@ expression list args; @@ - zlog(NULL, LOG_ERR, args) + zlog_err(args) /* long-forms: zlog(base->log, <level>, ...) * => zlog_level(...) */ @@ expression base; expression list args; @@ - zlog(base->log, LOG_DEBUG, args) + zlog_debug(args) @@ expression base; expression list args; @@ - zlog(base->log, LOG_NOTICE, args) + zlog_notice(args) @@ expression base; expression list args; @@ - zlog(base->log, LOG_INFO, args) + zlog_info(args) @@ expression base; expression list args; @@ - zlog(base->log, LOG_WARNING, args) + zlog_warn(args) @@ expression base; expression list args; @@ - zlog(base->log, LOG_ERR, args) + zlog_err(args) EOF Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2016-08-16ospfd: Remove HAVE_OPAQUE_LSADonald Sharp
HAVE_OPAQUE_LSA is used by default and you have to actively turn it off except that OPAQUE_LSA is an industry standard and used pretty much everywhere. There is no need to have special #defines for this anymore. Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com> (cherry picked from commit 36fef5708d074a3ef41f34d324c309c45bae119b)
2014-06-04*: nuke ^L (page feed)David Lamparter
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>
2013-01-07ospfd: compile warning cleanupsAndrew Certain
A set of patches to clarify some comments as well as cleanup code that was causing warnings. After these patches, the code can be compiled with -Wall -Wsign-compare -Wpointer-arith -Wbad-function-cast -Wwrite-strings -Wmissing-prototypes -Wmissing-declarations -Wchar-subscripts -Wcast-qual -Wextra -Wno-unused-parameter -Wno-missing-field-initializers (what is current in trunk plus -Wextra -Wno-unused-parameter -Wno-missing-field-initializers). Signed-off-by: Scott Feldman <sfeldma@cumulusnetworks.com>
2010-12-08ospfd: Unify router and network LSA refresh logic with general refresherPaul Jakma
* (general) Get rid of the router and network LSA specific refresh timers and make the general refresher do this instead. Get rid of the twiddling of timers for router/network LSA that was spread across the code. This lays the foundations for future, general LSA refresh improvements, such as making sequence rollover work, and having generic LSA delays. * ospfd.h: (struct ospf) Bye bye to the router-lsa update timer thread pointer. (struct ospf_area) and to the router-lsa refresh timer. * ospf_interface.h: Remove the network_lsa_self timer thread pointer * ospf_lsa.h: (struct ospf_lsa) oi field should always be there, for benefit of type-2/network LSA processing. (ospf_{router,network}_lsa_{update_timer,timer_add}) no timers for these more (ospf_{router,network}_lsa_update) more generic functions to indicate that some router/network LSAs need updating (ospf_router_lsa_update_area) update router lsa in a particular area alone. (ospf_{summary,summary_asbr,network}_lsa_refresh) replaced by the general ospf_lsa_refresh function. (ospf_lsa_refresh) general LSA refresh function
2010-12-08ospfd: Lower level of some common messages from info to debugPaul Jakma
* ospf_{ism,network}.c: Certain oft-repeated but trivial messages should be debug log level, not info, to avoid spamming 'terminal monitor'
2009-08-28ospfd: Make sure priority is respected.Joakim Tjernlund
* ospf_ism.c (ospf_dr_eligible_routers) should test for priority > 0 instead of != 0 as ospf_nbr_new () initially sets prio to -1
2008-08-22[warnings] Fix various SOS warningsPaul Jakma
2008-08-15 Paul Jakma <paul.jakma@sun.com> * */*: Fix various problems flagged by Sun Studio compiler. - '<qualifier> <storage>' obsolescent in declarations - empty statements (';' after ALIAS definitions) - implicit declarations (e.g printstack in lib/log.c) - "\%" in printf string instead of "%%" - loops that return on the first iteration (legitimately, but compiler can't really know), e.g. bgp_routemap.c - internal declarations which mask prototypes.
2006-07-26[ospfd] Allow ospf_lsa_unlock to NULL out callers' LSA pointers upon freePaul Jakma
2006-07-26 Paul Jakma <paul.jakma@sun.com> * ospf_lsa.{c,h}: (ospf_lsa_unlock) Change to take a double pointer to the LSA to be 'unlocked', so that, if the LSA is freed, the callers pointer to the LSA can be NULLed out, allowing any further use of that pointer to provoke a crash sooner rather than later. * ospf_*.c: (general) Adjust callers of ospf_lsa_unlock to match previous. Try annotate 'locking' somewhat to show which 'locks' are protecting what LSA reference, if not obvious. * ospf_opaque.c: (ospf_opaque_lsa_install) Trivial: remove useless goto, replace with return. * ospf_packet.c: (ospf_make_ls_ack) Trivial: merge two list loops, the dual-loop predated the delete-safe list-loop macro.
2006-05-12[ospfd] CID #15, remove redundant NULL check in ism_change_statePaul Jakma
2006-05-12 Paul Jakma <paul.jakma@sun.com> * ospf_ism.c: (ism_change_state) NULL check on oi->area is useless, it's always valid. Only possibility where it couldn't be is if there is a race between abr_task and cleaning up oi's, in which case a NULL check here isn't going to do anything. Fixes CID #15.
2005-10-212005-10-21 Paul Jakma <paul.jakma@sun.com>paul
* (general) OSPF fast, sub-second hello and 1s dead-interval support. A warning fix. Millisec support for ospf_timer_dump. Change auto-cost ref-bandwidth to add a comment to write out of config, rather than printing annoying messages to vty on startup. * ospf_dump.c: (ospf_timer_dump) Print out milliseconds too. Callers typically specify a length of 9, so most see millisecs unless they specify the additional length. * ospf_interface.h: (struct ospf_interface) new interface param, fast_hello. * ospf_interface.c: (ospf_if_table_lookup) add brackets, gcc warning fix. (ospf_new_if_params) Initialise fast_hello param. (ospf_free_if_params) Check whether fast_hello is configured. (ospf_if_new_hook) set fast_hello to default. * ospf_ism.h: Wrap OSPF_ISM_TIMER_ON inside do {} while (0) to prevent funny side-effects from its if statement when this macro is used conditionally by other macros. (OSPF_ISM_TIMER_MSEC_ON) new macro, set in milliseconds. (OSPF_HELLO_TIMER_ON) new macro to set hello timer according to whether fast_hello is set. * ospf_ism.c: Update all setting of the hello timer to use either OSPF_ISM_TIMER_MSEC_ON or OSPF_HELLO_TIMER_ON. The former is used when hello is to be sent immediately. * ospf_nsm.c: ditto * ospf_packet.c: (ospf_hello) hello-interval is not checked for mismatch if fast_hello is set. (ospf_read) Annoying nit, fix "no ospf_interface" to be debug rather than a warning, as it can be perfectly normal to receive packets when logical subnets are used. (ospf_make_hello) Set hello-interval to 0 if fast-hellos are configured. * ospf_vty.c: (ospf_auto_cost_reference_bandwidth) annoying nit, don't vty_out if this command is given, it gets tired quick. (show_ip_ospf_interface_sub) Print the hello-interval according to whether fast-hello is set or not. Print the extra 5 millisec characters from (ospf_timer_dump) if fast-hello is configured. (ospf_vty_dead_interval_set) new function, common to all forms of dead-interval command, to set dead-interval and fast-hello correctly. If a dead-interval is given, unset fast-hello, else if a hello-multiplier is set, set dead-interval to 1 and fast-hello to given multiplier. (ip_ospf_dead_interval_addr_cmd) use ospf_vty_dead_interval_set(). (ip_ospf_dead_interval_minimal_addr_cmd) ditto. (no_ip_ospf_dead_interval) Unset fast-hello. (no_ip_ospf_hello_interval) Bug-fix, unset of hello-interval should set it to OSPF_HELLO_INTERVAL_DEFAULT, not OSPF_ROUTER_DEAD_INTERVAL_DEFAULT. (config_write_interface) Write out fast-hello. (ospf_config_write) Write a comment about "auto-cost reference-bandwidth" having to be equal on all routers. Hopefully just as noticeable as old practice of writing to vty, but less annoying. (ospf_vty_if_init) install the two new dead-interval commands. * ospfd.h: Add defines for OSPF_ROUTER_DEAD_INTERVAL_MINIMAL and OSPF_FAST_HELLO_DEFAULT.
2005-09-292005-09-29 Alain Ritoux <alain.ritoux@6wind.com>vincent
* lib/smux.[ch]: allow to retreive global OID (identified by <0 namelen). * ospf_ism.c: generate SNMP traps on Interface state change * ospf_nsm.c: generate SNMP traps on Neighbour state change * ospf_snmp.[ch]: support for SNMP traps for interface and neighbours.
2005-06-012005-06-01 Akihiro Mizutani <mizutani@net-chef.net>paul
* ospf_ism.c (ospf_elect_bdr/ospf_elect_dr): Fix DR election bug.
2005-05-062005-05-06 Paul Jakma <paul.jakma@sun.com>paul
* (general) extern and static qualifiers added. unspecified arguments in definitions fixed, typically they should be 'void'. function casts added for callbacks. Guards added to headers which lacked them. Proper headers included rather than relying on incomplete definitions. gcc noreturn function attribute where appropriate. * ospf_opaque.c: remove the private definition of ospf_lsa's ospf_lsa_refresh_delay. * ospf_lsa.h: export ospf_lsa_refresh_delay * ospf_packet.c: (ospf_make_md5_digest) make *auth_key const, correct thing to do - removes need for the casts later. * ospf_vty.c: Use vty.h's VTY_GET_INTEGER rather than ospf_vty's home-brewed versions, shuts up several warnings. * ospf_vty.h: remove VTY_GET_UINT32. VTY_GET_IPV4_ADDRESS and VTY_GET_IPV4_PREFIX moved to lib/vty.h. * ospf_zebra.c: (ospf_distribute_list_update_timer) hacky overloading of the THREAD_ARG pointer should at least use uintptr_t.
2005-04-072005-04-07 Paul Jakma <paul.jakma@sun.com>paul
* (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.
2005-02-082005-02-08 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs
* ospf_interface.h: Improve passive_interface comment. Add new multicast_memberships bitmask to struct ospf_interface to track active multicast subscriptions. Declare new function ospf_if_set_multicast. * ospf_interface.c: (ospf_if_set_multicast) New function to configure multicast memberships properly based on the current multicast_memberships status and the current values of the ospf_interface state, type, and passive_interface status. (ospf_if_up) Remove call to ospf_if_add_allspfrouters (this is now handled by ism_change_state's call to ospf_if_set_multicast). (ospf_if_down) Remove call to ospf_if_drop_allspfrouters (now handled by ism_change_state). * ospf_ism.c: (ospf_dr_election) Remove logic to join or leave the DRouters multicast group (now handled by ism_change_state's call to ospf_if_set_multicast). (ism_change_state) Add call to ospf_if_set_multicast to change multicast memberships as necessary to reflect the new interface state. * ospf_packet.c: (ospf_hello) When a Hello packet is received on a passive interface: 1. Increase the severity of the error message from LOG_INFO to LOG_WARNING; 2. Add more information to the error message (packet destination address and interface address); and 3. If the packet was sent to ospf-all-routers, then try to fix the multicast group memberships. (ospf_read) When a packet is received on an interface whose state is ISM_Down, enhance the warning message to show the packet destination address, and try to update/fix the multicast group memberships if the packet was sent to a multicast address. When a packet is received for ospf-designated-routers, but the current interface state is not DR or BDR, then increase the severity level of the error message from LOG_INFO to LOG_WARNING, and try to fix the multicast group memberships. * ospf_vty.c: (ospf_passive_interface) Call ospf_if_set_multicast for any ospf interface that may have changed from active to passive. (no_ospf_passive_interface) Call ospf_if_set_multicast for any ospf interface that may have changed from passive to active. (show_ip_ospf_interface_sub) Show multicast group memberships.
2004-12-082004-12-08 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs
* *.c: Change level of debug messages to LOG_DEBUG.
2004-10-08Compiler warnings fixes round 1.hasso
2004-09-23Remove usage of evil list and listnode typedefs.hasso
2003-03-252003-03-25 Paul Jakma <paul@dishone.st>paul
* sync to latest zebra CVS * spec file: updated and added define for ospf-api/client NB: OSPF-API has been broken by the zebra.org changes, which has added struct ospf * as a new arg to many functions
2003-01-17From endo@suri.co.jp Fri Jan 17 23:36:30 2003paul
Date: Fri, 20 Dec 2002 17:58:43 +0900 From: Masahiko Endo <endo@suri.co.jp> Reply-To: zebra@zebra.org To: zebra@zebra.org Cc: kunihiro@zebra.org Subject: [zebra 16824] [PATCH] nsm_kill_neighbor [ The following text is in the "ISO-2022-JP" character set. ] [ Your display is set for the "ISO-8859-1" character set. ] [ Some characters may be displayed incorrectly. ] Hi Ishiguro-san, Here is my problem analysis against the case that the ospfd crashes when an interface is brought down. When the ospfd receives a ZEBRA message "ZEBRA_INTERFACE_DOWN" from zebra daemon, the ospfd performs bunch of ospf-interface cleanup for the notified zebra-interface. There are cases that neighbor instance "nbr", which will be removed afterward, may scheduled in the NSM thread event queue. And when the NSM event thread is fired, dereference for this already freed "nbr" pointer causes SIGSEGV. Please take a look at following timeline of processing sequences.