summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--src/ipcpd/normal/pol/graph.c114
-rw-r--r--src/ipcpd/normal/pol/graph.h19
-rw-r--r--src/ipcpd/normal/pol/link_state.c40
-rw-r--r--src/ipcpd/normal/pol/tests/graph_test.c130
4 files changed, 197 insertions, 106 deletions
diff --git a/src/ipcpd/normal/pol/graph.c b/src/ipcpd/normal/pol/graph.c
index 9901fbaa..80a7de6f 100644
--- a/src/ipcpd/normal/pol/graph.c
+++ b/src/ipcpd/normal/pol/graph.c
@@ -438,40 +438,64 @@ static struct vertex ** dijkstra(struct graph * graph,
return prev;
}
-ssize_t graph_routing_table(struct graph * graph,
- uint64_t s_addr,
- struct routing_table *** table)
+static void free_routing_table(struct list_head * table)
{
- struct vertex ** prevs;
- struct list_head * p = NULL;
- int i = 0;
- int index = 0;
- int j = 0;
- int k = 0;
- struct vertex * prev;
- struct vertex * nhop;
- struct vertex * v;
+ struct list_head * h;
+ struct list_head * p;
+ struct list_head * q;
+ struct list_head * i;
+
+ list_for_each_safe(p, h, table) {
+ struct routing_table * t =
+ list_entry(p, struct routing_table, next);
+ list_for_each_safe(q, i, &t->nhops) {
+ struct nhop * n =
+ list_entry(q, struct nhop, next);
+ list_del(&n->next);
+ free(n);
+ }
+ list_del(&t->next);
+ free(t);
+ }
+}
+
+void graph_free_routing_table(struct graph * graph,
+ struct list_head * table)
+{
+ assert(table);
+
+ pthread_mutex_lock(&graph->lock);
+
+ free_routing_table(table);
+
+ pthread_mutex_unlock(&graph->lock);
+}
+
+int graph_routing_table(struct graph * graph,
+ uint64_t s_addr,
+ struct list_head * table)
+{
+ struct vertex ** prevs;
+ struct list_head * p;
+ int i = 0;
+ int index = 0;
+ struct vertex * prev;
+ struct vertex * nhop;
+ struct vertex * v;
+ struct routing_table * t;
+ struct nhop * n;
pthread_mutex_lock(&graph->lock);
/* We need at least 2 vertices for a table */
- if (graph->nr_vertices < 2) {
- pthread_mutex_unlock(&graph->lock);
- return -1;
- }
+ if (graph->nr_vertices < 2)
+ goto fail_vertices;
prevs = dijkstra(graph, s_addr);
- if (prevs == NULL) {
- pthread_mutex_unlock(&graph->lock);
- return -1;
- }
+ if (prevs == NULL)
+ goto fail_vertices;
- *table = malloc(sizeof(**table) * (graph->nr_vertices - 1));
- if (*table == NULL) {
- pthread_mutex_unlock(&graph->lock);
- free(prevs);
- return -1;
- }
+ list_head_init(table);
/*
* Now loop through the list of predecessors
@@ -495,19 +519,22 @@ ssize_t graph_routing_table(struct graph * graph,
index = get_vertex_index(graph, prev);
}
- (*table)[j] = malloc(sizeof(***table));
- if ((*table)[j] == NULL) {
- pthread_mutex_unlock(&graph->lock);
- for (k = 0; k < j; ++k)
- free((*table)[k]);
- free(*table);
- free(prevs);
- return -1;
- }
+ t = malloc(sizeof(*t));
+ if (t == NULL)
+ goto fail_t;
+
+ list_head_init(&t->nhops);
+
+ n = malloc(sizeof(*n));
+ if (n == NULL)
+ goto fail_n;
+
+ t->dst = v->addr;
+ n->nhop = nhop->addr;
+
+ list_add(&n->next, &t->nhops);
+ list_add(&t->next, table);
- (*table)[j]->dst = v->addr;
- (*table)[j]->nhop = nhop->addr;
- j++;
i++;
}
@@ -515,5 +542,14 @@ ssize_t graph_routing_table(struct graph * graph,
free(prevs);
- return j;
+ return 0;
+
+ fail_n:
+ free(t);
+ fail_t:
+ free_routing_table(table);
+ free(prevs);
+ fail_vertices:
+ pthread_mutex_unlock(&graph->lock);
+ return -1;
}
diff --git a/src/ipcpd/normal/pol/graph.h b/src/ipcpd/normal/pol/graph.h
index 8d092524..7340ecb9 100644
--- a/src/ipcpd/normal/pol/graph.h
+++ b/src/ipcpd/normal/pol/graph.h
@@ -28,9 +28,15 @@
#include <inttypes.h>
+struct nhop {
+ struct list_head next;
+ uint64_t nhop;
+};
+
struct routing_table {
- uint64_t dst;
- uint64_t nhop;
+ struct list_head next;
+ uint64_t dst;
+ struct list_head nhops;
};
struct graph * graph_create(void);
@@ -46,8 +52,11 @@ int graph_del_edge(struct graph * graph,
uint64_t s_addr,
uint64_t d_addr);
-ssize_t graph_routing_table(struct graph * graph,
- uint64_t s_addr,
- struct routing_table *** table);
+int graph_routing_table(struct graph * graph,
+ uint64_t s_addr,
+ struct list_head * table);
+
+void graph_free_routing_table(struct graph * graph,
+ struct list_head * table);
#endif /* OUROBOROS_IPCPD_NORMAL_GRAPH_H */
diff --git a/src/ipcpd/normal/pol/link_state.c b/src/ipcpd/normal/pol/link_state.c
index 26370682..ca837cc1 100644
--- a/src/ipcpd/normal/pol/link_state.c
+++ b/src/ipcpd/normal/pol/link_state.c
@@ -378,19 +378,18 @@ static int nbr_to_fd(uint64_t addr)
static void * calculate_pff(void * o)
{
- struct routing_i * instance;
- struct routing_table ** table;
- ssize_t n_table;
- int i;
- int fd;
+ struct routing_i * instance;
+ int i;
+ int fd;
+ struct list_head table;
+ struct list_head * p;
+ struct list_head * q;
+ int fds[1024];
instance = (struct routing_i *) o;
while (true) {
- table = NULL;
- n_table = graph_routing_table(ls.graph,
- ipcpi.dt_addr, &table);
- if (n_table < 0) {
+ if (graph_routing_table(ls.graph, ipcpi.dt_addr, &table)) {
sleep(RECALC_TIME);
continue;
}
@@ -399,17 +398,28 @@ static void * calculate_pff(void * o)
pff_flush(instance->pff);
- for (i = 0; i < n_table; i++) {
- fd = nbr_to_fd(table[i]->nhop);
- if (fd == -1)
- continue;
+ list_for_each(p, &table) {
+ struct routing_table * t =
+ list_entry(p, struct routing_table, next);
+
+ list_for_each(q, &t->nhops) {
+ struct nhop * n =
+ list_entry(q, struct nhop, next);
+
+ fd = nbr_to_fd(n->nhop);
+ if (fd == -1)
+ continue;
- pff_add(instance->pff, table[i]->dst, &fd, 1);
+ fds[i++] = fd;
+ }
+
+ pff_add(instance->pff, t->dst, fds, i);
}
pff_unlock(instance->pff);
- freepp(struct routing_table, table, n_table);
+ graph_free_routing_table(ls.graph, &table);
+
sleep(RECALC_TIME);
}
diff --git a/src/ipcpd/normal/pol/tests/graph_test.c b/src/ipcpd/normal/pol/tests/graph_test.c
index 87574187..0baba6fc 100644
--- a/src/ipcpd/normal/pol/tests/graph_test.c
+++ b/src/ipcpd/normal/pol/tests/graph_test.c
@@ -30,80 +30,108 @@
#include "graph.c"
-struct graph * graph;
-struct routing_table ** table;
-ssize_t n_table;
-qosspec_t qs;
+struct graph * graph;
+struct list_head table;
+qosspec_t qs;
int graph_test_entries(int entries)
{
- n_table = graph_routing_table(graph, 1, &table);
+ struct list_head * p;
+ int i = 0;
- if (n_table != entries) {
+ if (graph_routing_table(graph, 1, &table)) {
+ printf("Failed to get routing table.\n");
+ return -1;
+ }
+
+ list_for_each(p, &table) {
+ i++;
+ }
+
+ if (i != entries) {
printf("Wrong number of entries.\n");
- freepp(struct routing_table, table, n_table);
+ graph_free_routing_table(graph, &table);
return -1;
}
- freepp(struct routing_table, table, n_table);
+ graph_free_routing_table(graph, &table);
return 0;
}
int graph_test_double_link(void)
{
- n_table = graph_routing_table(graph, 1, &table);
- if (n_table < 0 || table == NULL) {
+ struct list_head * p;
+ int i = 0;
+
+ if (graph_routing_table(graph, 1, &table)) {
printf("Failed to get routing table.\n");
return -1;
}
- if (n_table != 2) {
- printf("Wrong number of entries.\n");
- freepp(struct routing_table, table, n_table);
- return -1;
+ list_for_each(p, &table) {
+ i++;
}
- if ((table[0]->dst != 2 && table[0]->nhop != 2) ||
- (table[0]->dst != 3 && table[0]->nhop != 2)) {
- printf("Wrong routing entry.\n");
- freepp(struct routing_table, table, n_table);
+ if (i != 2) {
+ printf("Wrong number of entries.\n");
+ graph_free_routing_table(graph, &table);
return -1;
}
- if ((table[1]->dst != 2 && table[1]->nhop != 2) ||
- (table[0]->dst != 3 && table[0]->nhop != 2)) {
- printf("Wrong routing entry.\n");
- freepp(struct routing_table, table, n_table);
- return -1;
+ list_for_each(p, &table) {
+ struct routing_table * t =
+ list_entry(p, struct routing_table, next);
+ struct nhop * n =
+ list_first_entry(&t->nhops, struct nhop, next);
+
+ if ((t->dst != 2 && n->nhop != 2) ||
+ (t->dst != 3 && n->nhop != 2)) {
+ printf("Wrong routing entry.\n");
+ graph_free_routing_table(graph, &table);
+ return -1;
+ }
}
- freepp(struct routing_table, table, n_table);
+ graph_free_routing_table(graph, &table);
return 0;
}
int graph_test_single_link(void)
{
- n_table = graph_routing_table(graph, 1, &table);
- if (n_table < 0 || table == NULL) {
+ struct list_head * p;
+ int i = 0;
+
+ if (graph_routing_table(graph, 1, &table)) {
printf("Failed to get routing table.\n");
return -1;
}
- if (n_table != 1) {
+ list_for_each(p, &table) {
+ i++;
+ }
+
+ if (i != 1) {
printf("Wrong number of entries.\n");
- freepp(struct routing_table, table, n_table);
+ graph_free_routing_table(graph, &table);
return -1;
}
- if (table[0]->dst != 2 && table[0]->nhop != 2) {
- printf("Wrong routing entry.\n");
- freepp(struct routing_table, table, n_table);
- return -1;
+ list_for_each(p, &table) {
+ struct routing_table * t =
+ list_entry(p, struct routing_table, next);
+ struct nhop * n =
+ list_first_entry(&t->nhops, struct nhop, next);
+
+ if (t->dst != 2 && n->nhop != 2) {
+ printf("Wrong routing entry.\n");
+ graph_free_routing_table(graph, &table);
+ return -1;
+ }
}
- freepp(struct routing_table, table, n_table);
+ graph_free_routing_table(graph, &table);
return 0;
}
@@ -111,9 +139,9 @@ int graph_test_single_link(void)
int graph_test(int argc,
char ** argv)
{
- int i;
- int nhop;
- int dst;
+ int nhop;
+ int dst;
+ struct list_head * p;
(void) argc;
(void) argv;
@@ -192,50 +220,58 @@ int graph_test(int argc,
return -1;
}
- n_table = graph_routing_table(graph, 1, &table);
+ if (graph_routing_table(graph, 1, &table)) {
+ printf("Failed to get routing table.\n");
+ return -1;
+ }
+
+ list_for_each(p, &table) {
+ struct routing_table * t =
+ list_entry(p, struct routing_table, next);
+ struct nhop * n =
+ list_first_entry(&t->nhops, struct nhop, next);
- for (i = 0; i < 6; i++) {
- nhop = table[i]->nhop;
- dst = table[i]->dst;
+ dst = t->dst;
+ nhop = n->nhop;
if (dst == 3 && nhop != 3) {
printf("Wrong entry.");
- freepp(struct routing_table, table, n_table);
+ graph_free_routing_table(graph, &table);
return -1;
}
if (dst == 2 && nhop != 2) {
printf("Wrong entry.");
- freepp(struct routing_table, table, n_table);
+ graph_free_routing_table(graph, &table);
return -1;
}
if (dst == 6 && nhop != 2) {
printf("Wrong entry.");
- freepp(struct routing_table, table, n_table);
+ graph_free_routing_table(graph, &table);
return -1;
}
if (dst == 4 && nhop != 3) {
printf("Wrong entry.");
- freepp(struct routing_table, table, n_table);
+ graph_free_routing_table(graph, &table);
return -1;
}
if (dst == 5 && nhop != 3) {
printf("Wrong entry.");
- freepp(struct routing_table, table, n_table);
+ graph_free_routing_table(graph, &table);
return -1;
}
if (dst == 7 && nhop != 3) {
printf("Wrong entry.");
- freepp(struct routing_table, table, n_table);
+ graph_free_routing_table(graph, &table);
return -1;
}
}
- freepp(struct routing_table, table, n_table);
+ graph_free_routing_table(graph, &table);
return 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-10-31 16:33:12 +0000