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ospfd: Cleanup oi->obuf to always be created

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This looks like a finish up of the partial cleanup that
ocurred at some point in time in the past.  When we
alloc oi also always alloc the oi->obuf.  When we delete
oi always delete the oi->obuf right before.

This cleans up a bunch of code to be simpler and hopefully
easier to follow.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
This commit is contained in:
Donald Sharp 2019-08-30 16:14:38 -04:00
parent 7cec50a533
commit 36a106e0e4
3 changed files with 16 additions and 57 deletions
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44
ospfd/ospf_interface.c
View File

@ -225,12 +225,14 @@ struct ospf_interface *ospf_if_new(struct ospf *ospf, struct interface *ifp,
{
struct ospf_interface *oi;
if ((oi = ospf_if_table_lookup(ifp, p)) == NULL) {
oi = XCALLOC(MTYPE_OSPF_IF, sizeof(struct ospf_interface));
memset(oi, 0, sizeof(struct ospf_interface));
} else
oi = ospf_if_table_lookup(ifp, p);
if (oi)
return oi;
oi = XCALLOC(MTYPE_OSPF_IF, sizeof(struct ospf_interface));
oi->obuf = ospf_fifo_new();
/* Set zebra interface pointer. */
oi->ifp = ifp;
oi->address = p;
@ -264,8 +266,6 @@ struct ospf_interface *ospf_if_new(struct ospf *ospf, struct interface *ifp,
oi->ospf = ospf;
ospf_if_stream_set(oi);
QOBJ_REG(oi, ospf_interface);
if (IS_DEBUG_OSPF_EVENT)
@ -325,8 +325,7 @@ void ospf_if_free(struct ospf_interface *oi)
{
ospf_if_down(oi);
if (oi->obuf)
ospf_fifo_free(oi->obuf);
ospf_fifo_free(oi->obuf);
assert(oi->state == ISM_Down);
@ -490,29 +489,20 @@ static void ospf_if_reset_stats(struct ospf_interface *oi)
oi->ls_ack_in = oi->ls_ack_out = 0;
}
void ospf_if_stream_set(struct ospf_interface *oi)
{
/* set output fifo queue. */
if (oi->obuf == NULL)
oi->obuf = ospf_fifo_new();
}
void ospf_if_stream_unset(struct ospf_interface *oi)
{
struct ospf *ospf = oi->ospf;
if (oi->obuf) {
/* flush the interface packet queue */
ospf_fifo_flush(oi->obuf);
/*reset protocol stats */
ospf_if_reset_stats(oi);
/* flush the interface packet queue */
ospf_fifo_flush(oi->obuf);
/*reset protocol stats */
ospf_if_reset_stats(oi);
if (oi->on_write_q) {
listnode_delete(ospf->oi_write_q, oi);
if (list_isempty(ospf->oi_write_q))
OSPF_TIMER_OFF(ospf->t_write);
oi->on_write_q = 0;
}
if (oi->on_write_q) {
listnode_delete(ospf->oi_write_q, oi);
if (list_isempty(ospf->oi_write_q))
OSPF_TIMER_OFF(ospf->t_write);
oi->on_write_q = 0;
}
}
@ -903,8 +893,6 @@ struct ospf_interface *ospf_vl_new(struct ospf *ospf,
ospf_area_add_if(voi->area, voi);
ospf_if_stream_set(voi);
if (IS_DEBUG_OSPF_EVENT)
zlog_debug("ospf_vl_new(): Stop");
return voi;

1
ospfd/ospf_interface.h
View File

@ -285,7 +285,6 @@ extern void ospf_if_update_params(struct interface *, struct in_addr);
extern int ospf_if_new_hook(struct interface *);
extern void ospf_if_init(void);
extern void ospf_if_stream_set(struct ospf_interface *);
extern void ospf_if_stream_unset(struct ospf_interface *);
extern void ospf_if_reset_variables(struct ospf_interface *);
extern int ospf_if_is_enable(struct ospf_interface *);

28
ospfd/ospf_packet.c
View File

@ -233,20 +233,6 @@ void ospf_fifo_free(struct ospf_fifo *fifo)
static void ospf_packet_add(struct ospf_interface *oi, struct ospf_packet *op)
{
if (!oi->obuf) {
flog_err(
EC_OSPF_PKT_PROCESS,
"ospf_packet_add(interface %s in state %d [%s], packet type %s, "
"destination %s) called with NULL obuf, ignoring "
"(please report this bug)!\n",
IF_NAME(oi), oi->state,
lookup_msg(ospf_ism_state_msg, oi->state, NULL),
lookup_msg(ospf_packet_type_str,
stream_getc_from(op->s, 1), NULL),
inet_ntoa(op->dst));
return;
}
/* Add packet to end of queue. */
ospf_fifo_push(oi->obuf, op);
@ -257,20 +243,6 @@ static void ospf_packet_add(struct ospf_interface *oi, struct ospf_packet *op)
static void ospf_packet_add_top(struct ospf_interface *oi,
struct ospf_packet *op)
{
if (!oi->obuf) {
flog_err(
EC_OSPF_PKT_PROCESS,
"ospf_packet_add(interface %s in state %d [%s], packet type %s, "
"destination %s) called with NULL obuf, ignoring "
"(please report this bug)!\n",
IF_NAME(oi), oi->state,
lookup_msg(ospf_ism_state_msg, oi->state, NULL),
lookup_msg(ospf_packet_type_str,
stream_getc_from(op->s, 1), NULL),
inet_ntoa(op->dst));
return;
}
/* Add packet to head of queue. */
ospf_fifo_push_head(oi->obuf, op);