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-rw-r--r--isisd/isis_adjacency.c2
-rw-r--r--isisd/isis_circuit.h1
-rw-r--r--isisd/isis_csm.c9
-rw-r--r--isisd/isis_lsp.c2
-rw-r--r--isisd/isis_pdu.c129
5 files changed, 79 insertions, 64 deletions
diff --git a/isisd/isis_adjacency.c b/isisd/isis_adjacency.c
index aab8d1a3..de34bea9 100644
--- a/isisd/isis_adjacency.c
+++ b/isisd/isis_adjacency.c
@@ -172,7 +172,7 @@ isis_adj_state_change (struct isis_adjacency *adj, enum isis_adj_state state,
circuit->upadjcount[level - 1]++;
if (state == ISIS_ADJ_DOWN)
{
- isis_delete_adj (adj, adj->circuit->u.bc.adjdb[level - 1]);
+ listnode_delete (adj->circuit->u.bc.adjdb[level - 1], adj);
circuit->upadjcount[level - 1]--;
}
diff --git a/isisd/isis_circuit.h b/isisd/isis_circuit.h
index a7e719f6..f32d1dda 100644
--- a/isisd/isis_circuit.h
+++ b/isisd/isis_circuit.h
@@ -65,6 +65,7 @@ struct isis_p2p_info
struct isis_circuit
{
int state;
+ int connected;
u_char circuit_id; /* l1/l2 p2p/bcast CircuitID */
struct isis_area *area; /* back pointer to the area */
struct interface *interface; /* interface info from z */
diff --git a/isisd/isis_csm.c b/isisd/isis_csm.c
index 80d0c906..6cdde46a 100644
--- a/isisd/isis_csm.c
+++ b/isisd/isis_csm.c
@@ -112,6 +112,7 @@ isis_csm_state_change (int event, struct isis_circuit *circuit, void *arg)
isis_circuit_configure (circuit, (struct isis_area *) arg);
isis_circuit_up (circuit);
circuit->state = C_STATE_UP;
+ circuit->connected = 1;
isis_event_circuit_state_change (circuit, 1);
listnode_delete (isis->init_circ_list, circuit);
break;
@@ -136,9 +137,12 @@ isis_csm_state_change (int event, struct isis_circuit *circuit, void *arg)
zlog_warn ("circuit already enabled");
break;
case IF_UP_FROM_Z:
- isis_circuit_if_add (circuit, (struct interface *) arg);
- isis_circuit_up (circuit);
+ if (!circuit->connected) {
+ isis_circuit_if_add (circuit, (struct interface *) arg);
+ isis_circuit_up (circuit);
+ }
circuit->state = C_STATE_UP;
+ circuit->connected = 1;
isis_event_circuit_state_change (circuit, 1);
break;
case ISIS_DISABLE:
@@ -167,7 +171,6 @@ isis_csm_state_change (int event, struct isis_circuit *circuit, void *arg)
isis_event_circuit_state_change (circuit, 0);
break;
case IF_DOWN_FROM_Z:
- isis_circuit_if_del (circuit);
circuit->state = C_STATE_CONF;
isis_event_circuit_state_change (circuit, 0);
break;
diff --git a/isisd/isis_lsp.c b/isisd/isis_lsp.c
index e12e4ca8..9db0db9d 100644
--- a/isisd/isis_lsp.c
+++ b/isisd/isis_lsp.c
@@ -2037,6 +2037,8 @@ lsp_tick (struct thread *thread)
{
for (ALL_LIST_ELEMENTS_RO (area->circuit_list, cnode, circuit))
{
+ if (circuit->state != C_STATE_UP)
+ continue;
for (ALL_LIST_ELEMENTS_RO (lsp_list, lspnode, lsp))
{
if (ISIS_CHECK_FLAG (lsp->SRMflags, circuit))
diff --git a/isisd/isis_pdu.c b/isisd/isis_pdu.c
index 0896d540..4c602eea 100644
--- a/isisd/isis_pdu.c
+++ b/isisd/isis_pdu.c
@@ -1916,6 +1916,9 @@ send_hello (struct isis_circuit *circuit, int level)
unsigned long len_pointer, length;
int retval;
+ if (circuit->state != C_STATE_UP || circuit->interface == NULL)
+ return ISIS_WARNING;
+
if (circuit->interface->mtu == 0)
{
zlog_warn ("circuit has zero MTU");
@@ -2222,6 +2225,9 @@ send_csnp (struct isis_circuit *circuit, int level)
struct listnode *node;
struct isis_lsp *lsp;
+ if (circuit->state != C_STATE_UP || circuit->interface == NULL)
+ return ISIS_WARNING;
+
memset (start, 0x00, ISIS_SYS_ID_LEN + 2);
memset (stop, 0xff, ISIS_SYS_ID_LEN + 2);
@@ -2387,6 +2393,9 @@ send_psnp (int level, struct isis_circuit *circuit)
struct list *list = NULL;
struct listnode *node;
+ if (circuit->state != C_STATE_UP || circuit->interface == NULL)
+ return ISIS_WARNING;
+
if ((circuit->circ_type == CIRCUIT_T_BROADCAST &&
!circuit->u.bc.is_dr[level - 1]) ||
circuit->circ_type != CIRCUIT_T_BROADCAST)
@@ -2493,85 +2502,85 @@ send_lsp (struct thread *thread)
circuit = THREAD_ARG (thread);
assert (circuit);
- if (circuit->state == C_STATE_UP)
+ if (circuit->state != C_STATE_UP || circuit->interface == NULL)
+ return ISIS_WARNING;
+
+ lsp = listgetdata ((node = listhead (circuit->lsp_queue)));
+
+ /*
+ * Do not send if levels do not match
+ */
+ if (!(lsp->level & circuit->circuit_is_type))
+ goto dontsend;
+
+ /*
+ * Do not send if we do not have adjacencies in state up on the circuit
+ */
+ if (circuit->upadjcount[lsp->level - 1] == 0)
+ goto dontsend;
+ /* only send if it needs sending */
+ if ((time (NULL) - lsp->last_sent) >=
+ circuit->area->lsp_gen_interval[lsp->level - 1])
{
- lsp = listgetdata ((node = listhead (circuit->lsp_queue)));
- /*
- * Do not send if levels do not match
- */
- if (!(lsp->level & circuit->circuit_is_type))
- goto dontsend;
+ if (isis->debugs & DEBUG_UPDATE_PACKETS)
+ {
+ zlog_debug
+ ("ISIS-Upd (%s): Sent L%d LSP %s, seq 0x%08x, cksum 0x%04x,"
+ " lifetime %us on %s", circuit->area->area_tag, lsp->level,
+ rawlspid_print (lsp->lsp_header->lsp_id),
+ ntohl (lsp->lsp_header->seq_num),
+ ntohs (lsp->lsp_header->checksum),
+ ntohs (lsp->lsp_header->rem_lifetime),
+ circuit->interface->name);
+ }
+ /* copy our lsp to the send buffer */
+ stream_copy (circuit->snd_stream, lsp->pdu);
+
+ retval = circuit->tx (circuit, lsp->level);
/*
- * Do not send if we do not have adjacencies in state up on the circuit
+ * If the sending succeeded, we can del the lsp from circuits
+ * lsp_queue
*/
- if (circuit->upadjcount[lsp->level - 1] == 0)
- goto dontsend;
- /* only send if it needs sending */
- if ((time (NULL) - lsp->last_sent) >=
- circuit->area->lsp_gen_interval[lsp->level - 1])
+ if (retval == ISIS_OK)
{
-
- if (isis->debugs & DEBUG_UPDATE_PACKETS)
- {
- zlog_debug
- ("ISIS-Upd (%s): Sent L%d LSP %s, seq 0x%08x, cksum 0x%04x,"
- " lifetime %us on %s", circuit->area->area_tag, lsp->level,
- rawlspid_print (lsp->lsp_header->lsp_id),
- ntohl (lsp->lsp_header->seq_num),
- ntohs (lsp->lsp_header->checksum),
- ntohs (lsp->lsp_header->rem_lifetime),
- circuit->interface->name);
- }
- /* copy our lsp to the send buffer */
- stream_copy (circuit->snd_stream, lsp->pdu);
-
- retval = circuit->tx (circuit, lsp->level);
+ list_delete_node (circuit->lsp_queue, node);
/*
- * If the sending succeeded, we can del the lsp from circuits
- * lsp_queue
+ * On broadcast circuits also the SRMflag can be cleared
*/
- if (retval == ISIS_OK)
- {
- list_delete_node (circuit->lsp_queue, node);
+ if (circuit->circ_type == CIRCUIT_T_BROADCAST)
+ ISIS_CLEAR_FLAG (lsp->SRMflags, circuit);
+ if (flags_any_set (lsp->SRMflags) == 0)
+ {
/*
- * On broadcast circuits also the SRMflag can be cleared
+ * need to remember when we were last sent
*/
- if (circuit->circ_type == CIRCUIT_T_BROADCAST)
- ISIS_CLEAR_FLAG (lsp->SRMflags, circuit);
-
- if (flags_any_set (lsp->SRMflags) == 0)
- {
- /*
- * need to remember when we were last sent
- */
- lsp->last_sent = time (NULL);
- }
- }
- else
- {
- zlog_debug ("sending of level %d link state failed", lsp->level);
+ lsp->last_sent = time (NULL);
}
}
else
{
- /* my belief is that if it wasn't his time, the lsp can be removed
- * from the queue
- */
- dontsend:
- list_delete_node (circuit->lsp_queue, node);
+ zlog_debug ("sending of level %d link state failed", lsp->level);
}
-#if 0
- /*
- * If there are still LSPs send next one after lsp-interval (33 msecs)
+ }
+ else
+ {
+ /* my belief is that if it wasn't his time, the lsp can be removed
+ * from the queue
*/
- if (listcount (circuit->lsp_queue) > 0)
- thread_add_timer (master, send_lsp, circuit, 1);
-#endif
+ dontsend:
+ list_delete_node (circuit->lsp_queue, node);
}
+#if 0
+ /*
+ * If there are still LSPs send next one after lsp-interval (33 msecs)
+ */
+ if (listcount (circuit->lsp_queue) > 0)
+ thread_add_timer (master, send_lsp, circuit, 1);
+#endif
return retval;
}
generated by cgit v1.2.1 (git 2.18.0) at 2024-07-07 22:47:46 +0000