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-rw-r--r--src/ipcpd/normal/pol/graph.c34
-rw-r--r--src/ipcpd/normal/pol/link_state.c6
-rw-r--r--src/ipcpd/normal/pol/tests/graph_test.c35
3 files changed, 53 insertions, 22 deletions
diff --git a/src/ipcpd/normal/pol/graph.c b/src/ipcpd/normal/pol/graph.c
index 27c5cfca..9e723737 100644
--- a/src/ipcpd/normal/pol/graph.c
+++ b/src/ipcpd/normal/pol/graph.c
@@ -40,6 +40,7 @@ struct edge {
struct list_head next;
struct vertex * nb;
qosspec_t qs;
+ int announced;
};
struct vertex {
@@ -94,6 +95,7 @@ static struct edge * add_edge(struct vertex * vertex,
list_head_init(&edge->next);
edge->nb = nb;
+ edge->announced = 0;
list_add(&edge->next, &vertex->edges);
@@ -251,7 +253,7 @@ int graph_update_edge(struct graph * graph,
e = add_edge(v, nb);
if (e == NULL) {
if (list_is_empty(&v->edges))
- del_vertex(graph, v);
+ del_vertex(graph, v);
if (list_is_empty(&nb->edges))
del_vertex(graph, nb);
pthread_mutex_unlock(&graph->lock);
@@ -260,13 +262,15 @@ int graph_update_edge(struct graph * graph,
}
}
+ e->announced++;
e->qs = qs;
nb_e = find_edge_by_addr(nb, s_addr);
if (nb_e == NULL) {
nb_e = add_edge(nb, v);
if (nb_e == NULL) {
- del_edge(e);
+ if (--e->announced == 0)
+ del_edge(e);
if (list_is_empty(&v->edges))
del_vertex(graph, v);
if (list_is_empty(&nb->edges))
@@ -277,6 +281,7 @@ int graph_update_edge(struct graph * graph,
}
}
+ nb_e->announced++;
nb_e->qs = qs;
pthread_mutex_unlock(&graph->lock);
@@ -300,33 +305,35 @@ int graph_del_edge(struct graph * graph,
v = find_vertex_by_addr(graph, s_addr);
if (v == NULL) {
pthread_mutex_unlock(&graph->lock);
- log_err("No such vertex.");
+ log_err("No such source vertex.");
return -1;
}
nb = find_vertex_by_addr(graph, d_addr);
if (nb == NULL) {
pthread_mutex_unlock(&graph->lock);
- log_err("No such vertex.");
+ log_err("No such destination vertex.");
return -1;
}
e = find_edge_by_addr(v, d_addr);
if (e == NULL) {
pthread_mutex_unlock(&graph->lock);
- log_err("No such edge.");
+ log_err("No such source edge.");
return -1;
}
nb_e = find_edge_by_addr(nb, s_addr);
if (nb_e == NULL) {
pthread_mutex_unlock(&graph->lock);
- log_err("No such edge.");
+ log_err("No such destination edge.");
return -1;
}
- del_edge(e);
- del_edge(nb_e);
+ if (--e->announced == 0)
+ del_edge(e);
+ if (--nb_e->announced == 0)
+ del_edge(nb_e);
/* Removing vertex if it was the last edge */
if (list_is_empty(&v->edges))
@@ -407,6 +414,10 @@ static struct vertex ** dijkstra(struct graph * graph,
list_for_each(p, &v->edges) {
e = list_entry(p, struct edge, next);
+ /* Only include it if both sides announced it. */
+ if (e->announced != 2)
+ continue;
+
/*
* NOTE: Current weight is just hop count.
* Method could be extended to use a different
@@ -483,10 +494,7 @@ int graph_routing_table(struct graph * graph,
list_head_init(table);
- /*
- * Now loop through the list of predecessors
- * to construct the routing table
- */
+ /* Now construct the routing table from the nhops. */
list_for_each(p, &graph->vertices) {
v = list_entry(p, struct vertex, next);
@@ -507,7 +515,7 @@ int graph_routing_table(struct graph * graph,
goto fail_n;
t->dst = v->addr;
- n->nhop = nhops[i]->addr;
+ n->nhop = nhops[i]->addr;
list_add(&n->next, &t->nhops);
list_add(&t->next, table);
diff --git a/src/ipcpd/normal/pol/link_state.c b/src/ipcpd/normal/pol/link_state.c
index d45dae15..51d317bc 100644
--- a/src/ipcpd/normal/pol/link_state.c
+++ b/src/ipcpd/normal/pol/link_state.c
@@ -379,12 +379,11 @@ static int nbr_to_fd(uint64_t addr)
static void * calculate_pff(void * o)
{
struct routing_i * instance;
- int i = 0;
int fd;
struct list_head table;
struct list_head * p;
struct list_head * q;
- int fds[1024];
+ int fds[AP_MAX_FLOWS];
instance = (struct routing_i *) o;
@@ -399,6 +398,7 @@ static void * calculate_pff(void * o)
pff_flush(instance->pff);
list_for_each(p, &table) {
+ int i = 0;
struct routing_table * t =
list_entry(p, struct routing_table, next);
@@ -475,7 +475,7 @@ static void * lsupdate(void * o)
adj->src, adj->dst);
if (graph_del_edge(ls.graph, adj->src,
adj->dst))
- log_dbg("Failed to delete edge.");
+ log_err("Failed to del edge.");
free(adj);
continue;
}
diff --git a/src/ipcpd/normal/pol/tests/graph_test.c b/src/ipcpd/normal/pol/tests/graph_test.c
index 0baba6fc..42cf3f06 100644
--- a/src/ipcpd/normal/pol/tests/graph_test.c
+++ b/src/ipcpd/normal/pol/tests/graph_test.c
@@ -44,9 +44,8 @@ int graph_test_entries(int entries)
return -1;
}
- list_for_each(p, &table) {
+ list_for_each(p, &table)
i++;
- }
if (i != entries) {
printf("Wrong number of entries.\n");
@@ -69,9 +68,8 @@ int graph_test_double_link(void)
return -1;
}
- list_for_each(p, &table) {
+ list_for_each(p, &table)
i++;
- }
if (i != 2) {
printf("Wrong number of entries.\n");
@@ -108,9 +106,8 @@ int graph_test_single_link(void)
return -1;
}
- list_for_each(p, &table) {
+ list_for_each(p, &table)
i++;
- }
if (i != 1) {
printf("Wrong number of entries.\n");
@@ -168,6 +165,12 @@ int graph_test(int argc,
return -1;
}
+ if (graph_update_edge(graph, 2, 1, qs)) {
+ printf("Failed to add edge.\n");
+ graph_destroy(graph);
+ return -1;
+ }
+
if (graph_test_single_link()) {
graph_destroy(graph);
return -1;
@@ -179,6 +182,13 @@ int graph_test(int argc,
return -1;
}
+ if (graph_update_edge(graph, 3, 2, qs)) {
+ printf("Failed to add edge.\n");
+ graph_destroy(graph);
+ return -1;
+ }
+
+
if (graph_test_double_link()) {
graph_destroy(graph);
return -1;
@@ -190,13 +200,21 @@ int graph_test(int argc,
return -1;
}
+ if (graph_del_edge(graph, 3, 2)) {
+ printf("Failed to delete edge.\n");
+ graph_destroy(graph);
+ return -1;
+ }
+
if (graph_test_single_link()) {
graph_destroy(graph);
return -1;
}
graph_update_edge(graph, 2, 3, qs);
+ graph_update_edge(graph, 3, 2, qs);
graph_update_edge(graph, 1, 3, qs);
+ graph_update_edge(graph, 3, 1, qs);
if (graph_test_entries(2)) {
graph_destroy(graph);
@@ -204,7 +222,9 @@ int graph_test(int argc,
}
graph_update_edge(graph, 3, 4, qs);
+ graph_update_edge(graph, 4, 3, qs);
graph_update_edge(graph, 4, 5, qs);
+ graph_update_edge(graph, 5, 4, qs);
if (graph_test_entries(4)) {
graph_destroy(graph);
@@ -212,8 +232,11 @@ int graph_test(int argc,
}
graph_update_edge(graph, 2, 6, qs);
+ graph_update_edge(graph, 6, 2, qs);
graph_update_edge(graph, 6, 7, qs);
+ graph_update_edge(graph, 7, 6, qs);
graph_update_edge(graph, 3, 7, qs);
+ graph_update_edge(graph, 7, 3, qs);
if (graph_test_entries(6)) {
graph_destroy(graph);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-11 14:23:32 +0000