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-rw-r--r--src/ipcpd/normal/CMakeLists.txt3
-rw-r--r--src/ipcpd/normal/fso.proto29
-rw-r--r--src/ipcpd/normal/routing.c184
3 files changed, 182 insertions, 34 deletions
diff --git a/src/ipcpd/normal/CMakeLists.txt b/src/ipcpd/normal/CMakeLists.txt
index 39ced7bc..06292c50 100644
--- a/src/ipcpd/normal/CMakeLists.txt
+++ b/src/ipcpd/normal/CMakeLists.txt
@@ -15,6 +15,7 @@ include_directories(${CMAKE_BINARY_DIR}/include)
set(IPCP_NORMAL_TARGET ipcpd-normal CACHE STRING "IPCP_NORMAL_TARGET")
protobuf_generate_c(FLOW_ALLOC_SRCS FLOW_ALLOC_HDRS flow_alloc.proto)
+protobuf_generate_c(FSO_SRCS FSO_HDRS fso.proto)
set(SOURCE_FILES
# Add source files here
@@ -38,7 +39,7 @@ set(SOURCE_FILES
)
add_executable(ipcpd-normal ${SOURCE_FILES} ${IPCP_SOURCES}
- ${FLOW_ALLOC_SRCS})
+ ${FLOW_ALLOC_SRCS} ${FSO_SRCS})
target_link_libraries(ipcpd-normal LINK_PUBLIC ouroboros)
include(AddCompileFlags)
diff --git a/src/ipcpd/normal/fso.proto b/src/ipcpd/normal/fso.proto
new file mode 100644
index 00000000..32b281d6
--- /dev/null
+++ b/src/ipcpd/normal/fso.proto
@@ -0,0 +1,29 @@
+/*
+ * Ouroboros - Copyright (C) 2016 - 2017
+ *
+ * Flow State Object message
+ *
+ * Dimitri Staessens <dimitri.staessens@intec.ugent.be>
+ * Sander Vrijders <sander.vrijders@intec.ugent.be>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+syntax = "proto2";
+
+message fso {
+ required uint64 s_addr = 1;
+ required uint64 d_addr = 2;
+ /* Add QoS parameters of link here */
+};
diff --git a/src/ipcpd/normal/routing.c b/src/ipcpd/normal/routing.c
index 46c2be08..745d1812 100644
--- a/src/ipcpd/normal/routing.c
+++ b/src/ipcpd/normal/routing.c
@@ -27,6 +27,7 @@
#include <ouroboros/list.h>
#include <ouroboros/logs.h>
#include <ouroboros/rib.h>
+#include <ouroboros/rqueue.h>
#include "routing.h"
#include "ribmgr.h"
@@ -39,7 +40,10 @@
#include <inttypes.h>
#include <string.h>
-#define ADDR_SIZE 30
+#include "fso.pb-c.h"
+typedef Fso fso_t;
+
+#define BUF_SIZE 256
struct routing_table_entry {
struct list_head next;
@@ -48,17 +52,18 @@ struct routing_table_entry {
};
struct routing_i {
- struct pff * pff;
- struct list_head routing_table;
+ struct pff * pff;
};
struct {
struct nbs * nbs;
struct nb_notifier nb_notifier;
- char fso_path[RIB_MAX_PATH_LEN + 1];
-
struct graph * graph;
+
+ ro_set_t * set;
+ rqueue_t * queue;
+ pthread_t rib_listener;
} routing;
struct routing_i * routing_i_create(struct pff * pff)
@@ -73,8 +78,6 @@ struct routing_i * routing_i_create(struct pff * pff)
tmp->pff = pff;
- list_head_init(&tmp->routing_table);
-
return tmp;
}
@@ -88,24 +91,41 @@ void routing_i_destroy(struct routing_i * instance)
static int routing_neighbor_event(enum nb_event event,
struct conn conn)
{
- char addr[ADDR_SIZE];
- char path[RIB_MAX_PATH_LEN + 1];
+ char path[RIB_MAX_PATH_LEN + 1];
+ char fso_name[RIB_MAX_PATH_LEN + 1];
+ fso_t fso = FSO__INIT;
+ size_t len;
+ uint8_t * data;
- strcpy(path, routing.fso_path);
- snprintf(addr, ADDR_SIZE, "%" PRIx64, conn.conn_info.addr);
- rib_path_append(path, addr);
+ sprintf(fso_name, "%" PRIx64 "-%" PRIx64,
+ ipcpi.dt_addr, conn.conn_info.addr);
+ rib_path_append(rib_path_append(path, ROUTING_PATH), fso_name);
switch (event) {
case NEIGHBOR_ADDED:
- if (rib_add(routing.fso_path, addr)) {
+ fso.s_addr = ipcpi.dt_addr;
+ fso.d_addr = conn.conn_info.addr;
+
+ len = fso__get_packed_size(&fso);
+ if (len == 0)
+ return -1;
+
+ data = malloc(len);
+ if (data == NULL)
+ return -1;
+
+ fso__pack(&fso, data);
+
+ if (rib_add(ROUTING_PATH, fso_name)) {
log_err("Failed to add FSO.");
+ free(data);
return -1;
}
- if (rib_write(path, &conn.flow_info.qs,
- sizeof(conn.flow_info.qs))) {
- log_err("Failed to write qosspec to FSO.");
+ if (rib_put(path, data, len)) {
+ log_err("Failed to put FSO in RIB.");
rib_del(path);
+ free(data);
return -1;
}
@@ -118,12 +138,7 @@ static int routing_neighbor_event(enum nb_event event,
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;
- }
-
+ log_info("Not currently supported.");
break;
default:
log_info("Unsupported event for routing.");
@@ -133,10 +148,98 @@ static int routing_neighbor_event(enum nb_event event,
return 0;
}
-int routing_init(struct nbs * nbs)
+static int read_fso(char * path,
+ int32_t flag)
+{
+ ssize_t len;
+ uint8_t ro[BUF_SIZE];
+ fso_t * fso;
+ qosspec_t qs;
+
+ len = rib_read(path, ro, BUF_SIZE);
+ if (len < 0) {
+ log_err("Failed to read FSO.");
+ return -1;
+ }
+
+ fso = fso__unpack(NULL, len, ro);
+ if (fso == NULL) {
+ log_err("Failed to unpack.");
+ return -1;
+ }
+
+ if (flag & RO_CREATE) {
+ if (graph_add_edge(routing.graph,
+ fso->s_addr, fso->d_addr, qs)) {
+ log_err("Failed to add edge to graph.");
+ fso__free_unpacked(fso, NULL);
+ return -1;
+ }
+ } else if (flag & RO_MODIFY) {
+ if (graph_update_edge(routing.graph,
+ fso->s_addr, fso->d_addr, qs)) {
+ log_err("Failed to update edge of graph.");
+ fso__free_unpacked(fso, NULL);
+ return -1;
+ }
+ } else if (flag & RO_DELETE) {
+ if (graph_del_edge(routing.graph, fso->s_addr, fso->d_addr)) {
+ log_err("Failed to del edge of graph.");
+ fso__free_unpacked(fso, NULL);
+ return -1;
+ }
+ }
+
+ fso__free_unpacked(fso, NULL);
+
+ return 0;
+}
+
+static void * rib_listener(void * o)
{
- char addr[ADDR_SIZE];
+ int32_t flag;
+ char path[RIB_MAX_PATH_LEN + 1];
+ char ** children;
+ ssize_t len;
+ int i;
+
+ (void) o;
+
+ if (ro_set_add(routing.set, ROUTING_PATH,
+ RO_MODIFY | RO_CREATE | RO_DELETE)) {
+ log_err("Failed to add to RO set");
+ return (void * ) -1;
+ }
+
+ len = rib_children(ROUTING_PATH, &children);
+ if (len < 0) {
+ log_err("Failed to retrieve children.");
+ return (void *) -1;
+ }
+
+ for (i = 0; i < len; i++) {
+ if (read_fso(children[i], RO_CREATE)) {
+ log_err("Failed to parse FSO.");
+ continue;
+ }
+ }
+
+ while (rib_event_wait(routing.set, routing.queue, NULL)) {
+ flag = rqueue_next(routing.queue, path);
+ if (flag < 0)
+ continue;
+ if (read_fso(children[i], flag)) {
+ log_err("Failed to parse FSO.");
+ continue;
+ }
+ }
+
+ return (void *) 0;
+}
+
+int routing_init(struct nbs * nbs)
+{
routing.graph = graph_create();
if (routing.graph == NULL)
return -1;
@@ -146,32 +249,47 @@ int routing_init(struct nbs * nbs)
return -1;
}
- rib_path_append(routing.fso_path, ROUTING_NAME);
-
- snprintf(addr, ADDR_SIZE, "%" PRIx64, ipcpi.dt_addr);
+ routing.nbs = nbs;
- if (rib_add(routing.fso_path, addr)) {
+ routing.nb_notifier.notify_call = routing_neighbor_event;
+ if (nbs_reg_notifier(routing.nbs, &routing.nb_notifier)) {
graph_destroy(routing.graph);
rib_del(ROUTING_PATH);
return -1;
}
- rib_path_append(routing.fso_path, addr);
-
- routing.nbs = nbs;
+ routing.set = ro_set_create();
+ if (routing.set == NULL) {
+ nbs_unreg_notifier(routing.nbs, &routing.nb_notifier);
+ graph_destroy(routing.graph);
+ rib_del(ROUTING_PATH);
+ return -1;
+ }
- routing.nb_notifier.notify_call = routing_neighbor_event;
- if (nbs_reg_notifier(routing.nbs, &routing.nb_notifier)) {
+ routing.queue = rqueue_create();
+ if (routing.queue == NULL) {
+ ro_set_destroy(routing.set);
+ nbs_unreg_notifier(routing.nbs, &routing.nb_notifier);
graph_destroy(routing.graph);
rib_del(ROUTING_PATH);
return -1;
}
+ pthread_create(&routing.rib_listener, NULL, rib_listener, NULL);
+
return 0;
}
void routing_fini(void)
{
+ pthread_cancel(routing.rib_listener);
+
+ pthread_join(routing.rib_listener, NULL);
+
+ rqueue_destroy(routing.queue);
+
+ ro_set_destroy(routing.set);
+
graph_destroy(routing.graph);
rib_del(ROUTING_PATH);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-13 14:39:36 +0000