summaryrefslogtreecommitdiff
path: root/src/ipcpd
diff options
context:
space:
mode:
Diffstat (limited to 'src/ipcpd')
-rw-r--r--src/ipcpd/normal/CMakeLists.txt25
-rw-r--r--src/ipcpd/normal/addr_auth.c2
-rw-r--r--src/ipcpd/normal/flat.c63
-rw-r--r--src/ipcpd/normal/pol/flat.c261
-rw-r--r--src/ipcpd/normal/pol/flat.h (renamed from src/ipcpd/normal/flat.h)0
-rw-r--r--src/ipcpd/normal/ribmgr.c2
6 files changed, 276 insertions, 77 deletions
diff --git a/src/ipcpd/normal/CMakeLists.txt b/src/ipcpd/normal/CMakeLists.txt
index 06e41e9c..c4525b1a 100644
--- a/src/ipcpd/normal/CMakeLists.txt
+++ b/src/ipcpd/normal/CMakeLists.txt
@@ -23,17 +23,18 @@ protobuf_generate_c(FLOW_ALLOC_SRCS FLOW_ALLOC_HDRS
protobuf_generate_c(RO_SRCS RO_HDRS ro.proto)
set(SOURCE_FILES
- # Add source files here
- addr_auth.c
- cdap_request.c
- crc32.c
- flat.c
- fmgr.c
- frct.c
- main.c
- ribmgr.c
- shm_pci.c
-)
+ # Add source files here
+ addr_auth.c
+ cdap_request.c
+ crc32.c
+ fmgr.c
+ frct.c
+ main.c
+ ribmgr.c
+ shm_pci.c
+ # Add policies last
+ pol/flat.c
+ )
add_executable (ipcpd-normal ${SOURCE_FILES} ${IPCP_SOURCES}
${STATIC_INFO_SRCS} ${FLOW_ALLOC_SRCS} ${RO_SRCS})
@@ -41,7 +42,7 @@ target_link_libraries (ipcpd-normal LINK_PUBLIC ouroboros)
include(MacroAddCompileFlags)
if (CMAKE_BUILD_TYPE MATCHES Debug)
- macro_add_compile_flags(ipcpd-normal -DCONFIG_OUROBOROS_DEBUG)
+ macro_add_compile_flags(ipcpd-normal -DCONFIG_OUROBOROS_DEBUG)
endif (CMAKE_BUILD_TYPE MATCHES Debug)
install(TARGETS ipcpd-normal RUNTIME DESTINATION sbin)
diff --git a/src/ipcpd/normal/addr_auth.c b/src/ipcpd/normal/addr_auth.c
index 71bcfafa..95e4bef4 100644
--- a/src/ipcpd/normal/addr_auth.c
+++ b/src/ipcpd/normal/addr_auth.c
@@ -26,7 +26,7 @@
#include <ouroboros/logs.h>
#include "addr_auth.h"
-#include "flat.h"
+#include "pol/flat.h"
#include <stdlib.h>
#include <assert.h>
diff --git a/src/ipcpd/normal/flat.c b/src/ipcpd/normal/flat.c
deleted file mode 100644
index 8caa85b4..00000000
--- a/src/ipcpd/normal/flat.c
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * Ouroboros - Copyright (C) 2016
- *
- * Policy for flat addresses in a distributed way
- *
- * 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 as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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.
- */
-
-#define OUROBOROS_PREFIX "flat-addr-auth"
-
-#include <ouroboros/config.h>
-#include <ouroboros/logs.h>
-
-#include <time.h>
-#include <stdlib.h>
-#include <math.h>
-
-#include "shm_pci.h"
-#include "ribmgr.h"
-
-int flat_init(void)
-{
- srand(time(NULL));
-
- return 0;
-}
-
-int flat_fini(void)
-{
- return 0;
-}
-
-uint64_t flat_address(void)
-{
- uint64_t addr;
- uint64_t max_addr;
- struct dt_const * dtc;
-
- dtc = ribmgr_dt_const();
- if (dtc == NULL)
- return INVALID_ADDR;
-
- max_addr = (1 << (8 * dtc->addr_size)) - 1;
- addr = (rand() % (max_addr - 1)) + 1;
-
- /* FIXME: Add check for uniqueness of address */
-
- return addr;
-}
diff --git a/src/ipcpd/normal/pol/flat.c b/src/ipcpd/normal/pol/flat.c
new file mode 100644
index 00000000..4946d538
--- /dev/null
+++ b/src/ipcpd/normal/pol/flat.c
@@ -0,0 +1,261 @@
+/*
+ * Ouroboros - Copyright (C) 2016
+ *
+ * Policy for flat addresses in a distributed way
+ *
+ * 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 as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ */
+
+#define OUROBOROS_PREFIX "flat-addr-auth"
+
+#include <ouroboros/config.h>
+#include <ouroboros/logs.h>
+#include <ouroboros/errno.h>
+#include <ouroboros/time_utils.h>
+
+#include <time.h>
+#include <stdlib.h>
+#include <math.h>
+#include <string.h>
+#include <assert.h>
+
+#include "shm_pci.h"
+#include "ribmgr.h"
+#include "ro.h"
+
+#define POL_RO_ROOT "/flat_addr"
+
+#define TIMEOUT 100 /* ms */
+#define STR_SIZE 100
+
+#define FLAT_ADDR_REQ 0
+#define FLAT_ADDR_REPLY 1
+
+struct flat_addr_msg {
+ uint8_t code;
+ uint64_t addr;
+};
+
+struct {
+ int sid;
+ uint64_t addr;
+ bool addr_in_use;
+
+ pthread_cond_t cond;
+ pthread_mutex_t lock;
+} flat;
+
+static char * my_name(void)
+{
+ char * name;
+ char addr_name[100];
+
+ name = malloc(STR_SIZE);
+ if (name == NULL)
+ return NULL;
+
+ sprintf(addr_name, "%lu", (unsigned long) flat.addr);
+ strcpy(name, POL_RO_ROOT);
+ strcat(name, "/");
+ strcat(name, addr_name);
+
+ return name;
+}
+
+/* FIXME: We should return void */
+static int ro_created(const char * name,
+ uint8_t * data,
+ size_t len)
+{
+ struct flat_addr_msg * msg;
+
+ assert(name);
+ assert(data);
+ assert(len >= sizeof(*msg));
+
+ msg = (struct flat_addr_msg *) data;
+ if (msg->code == FLAT_ADDR_REQ &&
+ msg->addr == flat.addr) {
+ msg->code = FLAT_ADDR_REPLY;
+ ro_write(name, data, len);
+ }
+
+ return 0;
+}
+
+static int ro_updated(const char * name,
+ uint8_t * data,
+ size_t len)
+{
+ struct flat_addr_msg * msg;
+ char * ro_name;
+
+ assert(name);
+ assert(data);
+ assert(len >= sizeof(*msg));
+
+ ro_name = my_name();
+ if (ro_name == NULL)
+ return -1;
+
+ msg = (struct flat_addr_msg *) data;
+ if (msg->code == FLAT_ADDR_REPLY &&
+ strcmp(name, ro_name) == 0) {
+ pthread_mutex_lock(&flat.lock);
+ flat.addr_in_use = true;
+ pthread_cond_broadcast(&flat.cond);
+ pthread_mutex_unlock(&flat.lock);
+ }
+
+ free(data);
+ free(ro_name);
+
+ return 0;
+}
+
+static struct ro_sub_ops flat_sub_ops = {
+ .ro_created = ro_created,
+ .ro_updated = ro_updated,
+ .ro_deleted = NULL
+};
+
+int flat_init(void)
+{
+ struct ro_props * props;
+ pthread_condattr_t cattr;
+
+ srand(time(NULL));
+ flat.addr_in_use = false;
+
+ props = malloc(sizeof(*props));
+ if (props == NULL)
+ return -ENOMEM;
+
+ pthread_mutex_init(&flat.lock, NULL);
+ pthread_condattr_init(&cattr);
+#ifndef __APPLE__
+ pthread_condattr_setclock(&cattr, PTHREAD_COND_CLOCK);
+#endif
+ pthread_cond_init(&flat.cond, &cattr);
+
+ flat.sid = ro_subscribe(POL_RO_ROOT,
+ &flat_sub_ops);
+ if (flat.sid < 0) {
+ LOG_ERR("Could not subscribe to RIB.");
+ pthread_cond_destroy(&flat.cond);
+ pthread_mutex_destroy(&flat.lock);
+ free(props);
+ return -1;
+ }
+
+ props->enrol_sync = false;
+ props->recv_set = NO_SYNC;
+ props->expiry.tv_sec = 0;
+ props->expiry.tv_nsec = 0;
+
+ if (ro_create(POL_RO_ROOT, props, NULL, 0)) {
+ LOG_ERR("Could not create RO.");
+ pthread_cond_destroy(&flat.cond);
+ pthread_mutex_destroy(&flat.lock);
+ free(props);
+ ro_unsubscribe(flat.sid);
+ return -1;
+ }
+
+ return 0;
+}
+
+int flat_fini(void)
+{
+ pthread_cond_destroy(&flat.cond);
+ pthread_mutex_destroy(&flat.lock);
+ ro_unsubscribe(flat.sid);
+ return 0;
+}
+
+uint64_t flat_address(void)
+{
+ int ret = 0;
+ uint64_t max_addr;
+ struct dt_const * dtc;
+ struct timespec timeout = {(TIMEOUT / 1000),
+ (TIMEOUT % 1000) * MILLION};
+ struct timespec abstime;
+ struct ro_props * props;
+ struct flat_addr_msg * msg;
+ uint8_t * buf;
+ char * ro_name;
+
+ dtc = ribmgr_dt_const();
+ if (dtc == NULL)
+ return INVALID_ADDR;
+
+ while (ret != -ETIMEDOUT) {
+ clock_gettime(PTHREAD_COND_CLOCK, &abstime);
+ ts_add(&abstime, &timeout, &abstime);
+
+ max_addr = (1 << (8 * dtc->addr_size)) - 1;
+ flat.addr = (rand() % (max_addr - 1)) + 1;
+
+ /* FIXME: We must change this to stack memory */
+ props = malloc(sizeof(*props));
+ if (props == NULL)
+ return INVALID_ADDR;
+
+ props->enrol_sync = false;
+ props->recv_set = ALL_MEMBERS;
+ props->expiry.tv_sec = TIMEOUT / 1000;
+ props->expiry.tv_nsec = (TIMEOUT % 1000) * MILLION;
+
+ buf = malloc(sizeof(*msg));
+ if (buf == NULL) {
+ free(props);
+ return INVALID_ADDR;
+ }
+
+ msg = (struct flat_addr_msg *) buf;
+ msg->code = FLAT_ADDR_REQ;
+ msg->addr = flat.addr;
+
+ /* FIXME: We may require functions to construct pathnames */
+ ro_name = my_name();
+ if (ro_name == NULL) {
+ free(props);
+ return INVALID_ADDR;
+ }
+
+ pthread_mutex_lock(&flat.lock);
+ if (ro_create(ro_name, props, buf, sizeof(*msg))) {
+ pthread_mutex_unlock(&flat.lock);
+ free(props);
+ free(ro_name);
+ return INVALID_ADDR;
+ }
+ free(ro_name);
+
+ while (flat.addr_in_use == false) {
+ ret = -pthread_cond_timedwait(&flat.cond,
+ &flat.lock,
+ &abstime);
+ if (ret == -ETIMEDOUT)
+ break;
+ }
+ pthread_mutex_unlock(&flat.lock);
+ }
+
+ return flat.addr;
+}
diff --git a/src/ipcpd/normal/flat.h b/src/ipcpd/normal/pol/flat.h
index 51cb511b..51cb511b 100644
--- a/src/ipcpd/normal/flat.h
+++ b/src/ipcpd/normal/pol/flat.h
diff --git a/src/ipcpd/normal/ribmgr.c b/src/ipcpd/normal/ribmgr.c
index 524c5a39..79422909 100644
--- a/src/ipcpd/normal/ribmgr.c
+++ b/src/ipcpd/normal/ribmgr.c
@@ -414,7 +414,7 @@ static struct rnode * ribmgr_ro_create(const char * name,
if (!(props->expiry.tv_sec == 0 &&
props->expiry.tv_nsec == 0)) {
timeout = props->expiry.tv_sec * 1000 +
- props->expiry.tv_nsec * MILLION;
+ props->expiry.tv_nsec / MILLION;
if (timerwheel_add(rib.wheel, ro_delete_timer,
new->full_name, strlen(new->full_name),
timeout)) {
generated by cgit v1.2.3 (git 2.39.1) at 2025-10-31 23:10:25 +0000