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authorSander Vrijders <sander.vrijders@ugent.be>2017-03-13 16:09:45 +0100
committerSander Vrijders <sander.vrijders@ugent.be>2017-03-13 16:09:45 +0100
commit25ddfa73bf24734765e892cfa1c4304b714fd9cc (patch)
tree6b7cdf38253b4b416f185a50470cc6ad8ffbfb74 /src/ipcpd/normal
parent80dcc9aae225de1228347b91eb114b3e40022623 (diff)
downloadouroboros-25ddfa73bf24734765e892cfa1c4304b714fd9cc.tar.gz
ouroboros-25ddfa73bf24734765e892cfa1c4304b714fd9cc.zip
ipcpd: normal: Add Flow State Objects to RIB
This makes the routing component create a Flow State Database (FSDB). An FSDB contains Flow State Objects (FSOs). An FSO is created when a neighbor is added, it is deleted when a neighbor is removed and its QoS is updated when a neighbor's QoS changes.
Diffstat (limited to 'src/ipcpd/normal')
-rw-r--r--src/ipcpd/normal/fmgr.c23
-rw-r--r--src/ipcpd/normal/routing.c147
-rw-r--r--src/ipcpd/normal/routing.h10
3 files changed, 132 insertions, 48 deletions
diff --git a/src/ipcpd/normal/fmgr.c b/src/ipcpd/normal/fmgr.c
index 2593e8fd..184baf82 100644
--- a/src/ipcpd/normal/fmgr.c
+++ b/src/ipcpd/normal/fmgr.c
@@ -68,7 +68,7 @@ struct {
pthread_t nm1_sdu_reader;
struct pff * pff[QOS_CUBE_MAX];
- struct routing * routing[QOS_CUBE_MAX];
+ struct routing_i * routing[QOS_CUBE_MAX];
struct gam * gam;
struct nbs * nbs;
@@ -238,7 +238,7 @@ static void fmgr_destroy_routing(void)
int i;
for (i = 0; i < QOS_CUBE_MAX; ++i)
- routing_destroy(fmgr.routing[i]);
+ routing_i_destroy(fmgr.routing[i]);
}
static void fmgr_destroy_pff(void)
@@ -316,9 +316,18 @@ int fmgr_init(void)
return -1;
}
+ if (routing_init(fmgr.nbs)) {
+ log_err("Failed to init routing.");
+ nbs_destroy(fmgr.nbs);
+ fmgr_destroy_flows();
+ connmgr_ae_destroy(fmgr.ae);
+ return -1;
+ }
+
fmgr.nb_notifier.notify_call = fmgr_neighbor_event;
if (nbs_reg_notifier(fmgr.nbs, &fmgr.nb_notifier)) {
log_err("Failed to register notifier.");
+ routing_fini();
nbs_destroy(fmgr.nbs);
fmgr_destroy_flows();
connmgr_ae_destroy(fmgr.ae);
@@ -328,6 +337,7 @@ int fmgr_init(void)
if (pthread_rwlock_init(&fmgr.np1_flows_lock, NULL)) {
gam_destroy(fmgr.gam);
nbs_unreg_notifier(fmgr.nbs, &fmgr.nb_notifier);
+ routing_fini();
nbs_destroy(fmgr.nbs);
fmgr_destroy_flows();
connmgr_ae_destroy(fmgr.ae);
@@ -341,19 +351,21 @@ int fmgr_init(void)
pff_destroy(fmgr.pff[j]);
pthread_rwlock_destroy(&fmgr.np1_flows_lock);
nbs_unreg_notifier(fmgr.nbs, &fmgr.nb_notifier);
+ routing_fini();
nbs_destroy(fmgr.nbs);
fmgr_destroy_flows();
connmgr_ae_destroy(fmgr.ae);
return -1;
}
- fmgr.routing[i] = routing_create(fmgr.pff[i], fmgr.nbs);
+ fmgr.routing[i] = routing_i_create(fmgr.pff[i]);
if (fmgr.routing[i] == NULL) {
for (j = 0; j < i; ++j)
- routing_destroy(fmgr.routing[j]);
+ routing_i_destroy(fmgr.routing[j]);
fmgr_destroy_pff();
pthread_rwlock_destroy(&fmgr.np1_flows_lock);
nbs_unreg_notifier(fmgr.nbs, &fmgr.nb_notifier);
+ routing_fini();
nbs_destroy(fmgr.nbs);
fmgr_destroy_flows();
connmgr_ae_destroy(fmgr.ae);
@@ -368,6 +380,7 @@ int fmgr_init(void)
fmgr_destroy_pff();
pthread_rwlock_destroy(&fmgr.np1_flows_lock);
nbs_unreg_notifier(fmgr.nbs, &fmgr.nb_notifier);
+ routing_fini();
nbs_destroy(fmgr.nbs);
fmgr_destroy_flows();
connmgr_ae_destroy(fmgr.ae);
@@ -396,6 +409,8 @@ void fmgr_fini()
fmgr_destroy_pff();
+ routing_fini();
+
fmgr_destroy_flows();
connmgr_ae_destroy(fmgr.ae);
diff --git a/src/ipcpd/normal/routing.c b/src/ipcpd/normal/routing.c
index 449c9379..e699fd77 100644
--- a/src/ipcpd/normal/routing.c
+++ b/src/ipcpd/normal/routing.c
@@ -26,17 +26,26 @@
#include <ouroboros/errno.h>
#include <ouroboros/list.h>
#include <ouroboros/logs.h>
+#include <ouroboros/rib.h>
#include "routing.h"
#include "ribmgr.h"
+#include "ribconfig.h"
+#include "ipcp.h"
#include <assert.h>
#include <stdlib.h>
#include <inttypes.h>
+#include <string.h>
+
+#define ADDR_SIZE 30
struct edge {
- struct vertex * ep;
- qosspec_t qs;
+ struct list_head next;
+
+ uint64_t addr;
+
+ qosspec_t qs;
};
struct vertex {
@@ -47,34 +56,16 @@ struct vertex {
struct list_head edges;
};
-struct routing {
- struct pff * pff;
- struct nbs * nbs;
-
- struct nb_notifier nb_notifier;
-
- struct list_head vertices;
+struct routing_i {
+ struct pff * pff;
+ struct list_head vertices;
};
-static int routing_neighbor_event(enum nb_event event,
- struct conn conn)
-{
- (void) conn;
-
- /* FIXME: React to events here */
- switch (event) {
- case NEIGHBOR_ADDED:
- break;
- case NEIGHBOR_REMOVED:
- break;
- case NEIGHBOR_QOS_CHANGE:
- break;
- default:
- break;
- }
-
- return 0;
-}
+struct {
+ struct nbs * nbs;
+ struct nb_notifier nb_notifier;
+ char fso_path[RIB_MAX_PATH_LEN + 1];
+} routing;
#if 0
/* FIXME: If zeroed since it is not used currently */
@@ -97,10 +88,9 @@ static int add_vertex(struct routing * instance,
}
#endif
-struct routing * routing_create(struct pff * pff,
- struct nbs * nbs)
+struct routing_i * routing_i_create(struct pff * pff)
{
- struct routing * tmp;
+ struct routing_i * tmp;
assert(pff);
@@ -109,24 +99,99 @@ struct routing * routing_create(struct pff * pff,
return NULL;
tmp->pff = pff;
- tmp->nbs = nbs;
list_head_init(&tmp->vertices);
- tmp->nb_notifier.notify_call = routing_neighbor_event;
- if (nbs_reg_notifier(tmp->nbs, &tmp->nb_notifier)) {
- free(tmp);
- return NULL;
- }
-
return tmp;
}
-void routing_destroy(struct routing * instance)
+void routing_i_destroy(struct routing_i * instance)
{
assert(instance);
- nbs_unreg_notifier(instance->nbs, &instance->nb_notifier);
-
free(instance);
}
+
+static int routing_neighbor_event(enum nb_event event,
+ struct conn conn)
+{
+ char addr[ADDR_SIZE];
+ char path[RIB_MAX_PATH_LEN + 1];
+
+ strcpy(path, routing.fso_path);
+ snprintf(addr, ADDR_SIZE, "%" PRIx64, conn.conn_info.addr);
+ rib_path_append(path, addr);
+
+ switch (event) {
+ case NEIGHBOR_ADDED:
+ if (rib_add(routing.fso_path, addr)) {
+ log_err("Failed to add FSO.");
+ return -1;
+ }
+
+ if (rib_write(path, &conn.flow_info.qs,
+ sizeof(conn.flow_info.qs))) {
+ log_err("Failed to write qosspec to FSO.");
+ rib_del(path);
+ return -1;
+ }
+
+ break;
+ case NEIGHBOR_REMOVED:
+ if (rib_del(path)) {
+ log_err("Failed to remove FSO.");
+ return -1;
+ }
+
+ break;
+ case NEIGHBOR_QOS_CHANGE:
+ if (rib_write(path, &conn.flow_info.qs,
+ sizeof(conn.flow_info.qs))) {
+ log_err("Failed to write qosspec to FSO.");
+ return -1;
+ }
+
+ break;
+ default:
+ log_info("Unsupported event for routing.");
+ break;
+ }
+
+ return 0;
+}
+
+int routing_init(struct nbs * nbs)
+{
+ char addr[ADDR_SIZE];
+
+ if (rib_add(RIB_ROOT, ROUTING_NAME))
+ return -1;
+
+ rib_path_append(routing.fso_path, ROUTING_NAME);
+
+ snprintf(addr, ADDR_SIZE, "%" PRIx64, ipcpi.dt_addr);
+
+ if (rib_add(routing.fso_path, addr)) {
+ rib_del(ROUTING_PATH);
+ return -1;
+ }
+
+ rib_path_append(routing.fso_path, addr);
+
+ routing.nbs = nbs;
+
+ routing.nb_notifier.notify_call = routing_neighbor_event;
+ if (nbs_reg_notifier(routing.nbs, &routing.nb_notifier)) {
+ rib_del(ROUTING_PATH);
+ return -1;
+ }
+
+ return 0;
+}
+
+void routing_fini(void)
+{
+ rib_del(ROUTING_PATH);
+
+ nbs_unreg_notifier(routing.nbs, &routing.nb_notifier);
+}
diff --git a/src/ipcpd/normal/routing.h b/src/ipcpd/normal/routing.h
index 81208ffa..20dc72f9 100644
--- a/src/ipcpd/normal/routing.h
+++ b/src/ipcpd/normal/routing.h
@@ -34,9 +34,13 @@
* Routing will take a type in the future,
* to allow different policies.
*/
-struct routing * routing_create(struct pff * pff,
- struct nbs * nbs);
-void routing_destroy(struct routing * instance);
+int routing_init(struct nbs * nbs);
+
+void routing_fini(void);
+
+struct routing_i * routing_i_create(struct pff * pff);
+
+void routing_i_destroy(struct routing_i * instance);
#endif /* OUROBOROS_IPCPD_NORMAL_ROUTING_H */