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See previous commit.
Signed-off-by: David Lamparter <equinox@diac24.net>
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Replace all lib/thread cancel macros, use thread_cancel()
everywhere. Only the THREAD_OFF macro and thread_cancel() api are
supported. Also adjust thread_cancel_async() to NULL caller's pointer (if
present).
Signed-off-by: Mark Stapp <mjs@voltanet.io>
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Change thread_cancel to take a ** to an event, NULL-check
before dereferencing, and NULL the caller's pointer. Update
many callers to use the new signature.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
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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>
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I am rarely seeing this crash:
r2: ospfd crashed. Core file found - Backtrace follows:
[New LWP 32748]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/aarch64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/lib/frr/ospfd'.
Program terminated with signal SIGABRT, Aborted.
2019-08-29 15:59:36,149 ERROR: assert failed at "test_ospf_sr_topo1/test_memory_leak":
Which translates to this code:
node = listhead(ospf->oi_write_q);
assert(node);
oi = listgetdata(node);
assert(oi);
So if we get into ospf_write without anything on the oi_write_q
we are stopping the program.
This is happening because in ospf_ls_upd_queue_send we are calling
ospf_write. Imagine that we have a interface already on the on_write_q
and then ospf_write handles the packet send for all functions. We
are not clearing the t_write thread and we are popping and causing
a crash.
Additionally modify OSPF_ISM_WRITE_ON(O) to not just blindly
turn on the t_write thread. Only do so if we have data.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
ospfd: Remove redundant asserts
assert(oi) is impossible all listgetdata(node) directly proceeding
it already asserts here, besides a node cannot be created
with a null pointer!
If list_isempty is called directly before the listhead call
it is impossilbe that we do not have a valid pointer here.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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indent.py `git ls-files | pcregrep '\.[ch]$' | pcregrep -v '^(ldpd|babeld|nhrpd)/'`
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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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>
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The way thread.c is written, a caller who wishes to be able to cancel a
thread or avoid scheduling it twice must keep a reference to the thread.
Typically this is done with a long lived pointer whose value is checked
for null in order to know if the thread is currently scheduled. The
check-and-schedule idiom is so common that several wrapper macros in
thread.h existed solely to provide it.
This patch removes those macros and adds a new parameter to all
thread_add_* functions which is a pointer to the struct thread * to
store the result of a scheduling call. If the value passed is non-null,
the thread will only be scheduled if the value is null. This helps with
consistency.
A Coccinelle spatch has been used to transform code of the form:
if (t == NULL)
t = thread_add_* (...)
to the form
thread_add_* (..., &t)
The THREAD_ON macros have also been transformed to the underlying
thread.c calls.
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
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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>
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2005-11-16 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* ospf_ism.h: (OSPF_ISM_TIMER_OFF) Improve macro syntax by enclosing
in 'do {...} while(0)'.
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* (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.
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* ospfd/ospf_vty.c: forece default route LSA to be re_issued whenever
cost is changed ( [no] ip ospf area XXX default-cost YYY)
Support ignore-mtu option
* ospfd/ospfd.h: define OSPF_MTU_IGNORE_DEFAULT
* ospfd/ospf_packet.c: support ignore-mtu option
* ospfd/ospf_interface.h: field added for skipping MTU check
* ospfd/ospf_interface.c: fix memory leak in ospf_crypt_key_delete()
Set mtu_ignore field to default value
* ospfd/ospf_abr.[ch]: export ospf_abr_announce_network_to_area()
* ospfd/ospf_ism.h: add MACRO to convert internal ISM status into SNMP
correct values
* ospfd/ospf_snmp.c: add sanity check on LSA type in lsdb_lookup_next()
convert OSPFIFSTATE internal status into SNMP values
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* (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.
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