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-rw-r--r--include/ouroboros/dev.h2
-rw-r--r--include/ouroboros/shm_ap_rbuff.h3
-rw-r--r--include/ouroboros/shm_du_map.h13
-rw-r--r--src/lib/dev.c13
-rw-r--r--src/lib/shm_ap_rbuff.c172
-rw-r--r--src/lib/shm_du_map.c6
-rw-r--r--src/tools/CMakeLists.txt1
-rw-r--r--src/tools/oping/CMakeLists.txt21
-rw-r--r--src/tools/oping/oping.c176
-rw-r--r--src/tools/oping/oping_client.c234
-rw-r--r--src/tools/oping/oping_server.c162
11 files changed, 730 insertions, 73 deletions
diff --git a/include/ouroboros/dev.h b/include/ouroboros/dev.h
index eb779953..91d5c7de 100644
--- a/include/ouroboros/dev.h
+++ b/include/ouroboros/dev.h
@@ -22,6 +22,7 @@
#include <unistd.h>
#include <stdint.h>
+#include <sys/time.h>
#include <ouroboros/qos.h>
#include <ouroboros/flow.h>
@@ -53,5 +54,6 @@ int flow_dealloc(int fd);
int flow_cntl(int fd, int cmd, int oflags);
ssize_t flow_write(int fd, void * buf, size_t count);
ssize_t flow_read(int fd, void * buf, size_t count);
+int flow_select(const struct timespec * timeout);
#endif
diff --git a/include/ouroboros/shm_ap_rbuff.h b/include/ouroboros/shm_ap_rbuff.h
index 78926869..257a289d 100644
--- a/include/ouroboros/shm_ap_rbuff.h
+++ b/include/ouroboros/shm_ap_rbuff.h
@@ -25,6 +25,7 @@
#define OUROBOROS_SHM_AP_RBUFF_H
#include <sys/types.h>
+#include <sys/time.h>
#include <stdbool.h>
struct shm_ap_rbuff;
@@ -41,6 +42,8 @@ void shm_ap_rbuff_destroy(struct shm_ap_rbuff * rb);
int shm_ap_rbuff_write(struct shm_ap_rbuff * rb,
struct rb_entry * e);
struct rb_entry * shm_ap_rbuff_read(struct shm_ap_rbuff * rb);
+int shm_ap_rbuff_peek(struct shm_ap_rbuff * rb,
+ const struct timespec * timeout);
ssize_t shm_ap_rbuff_read_port(struct shm_ap_rbuff * rb,
int port_id);
pid_t shm_ap_rbuff_get_api(struct shm_ap_rbuff * rb);
diff --git a/include/ouroboros/shm_du_map.h b/include/ouroboros/shm_du_map.h
index 11fe35c6..b9c56cf8 100644
--- a/include/ouroboros/shm_du_map.h
+++ b/include/ouroboros/shm_du_map.h
@@ -39,13 +39,12 @@ void shm_du_map_destroy(struct shm_du_map * dum);
void * shm_du_map_sanitize(void * o);
/* returns the index of the buffer in the DU map */
-ssize_t shm_du_map_write(struct shm_du_map * dum,
- pid_t dst_api,
- size_t headspace,
- size_t tailspace,
- uint8_t * data,
- size_t data_len);
-
+ssize_t shm_du_map_write(struct shm_du_map * dum,
+ pid_t dst_api,
+ size_t headspace,
+ size_t tailspace,
+ uint8_t * data,
+ size_t data_len);
int shm_du_map_read(uint8_t ** dst,
struct shm_du_map * dum,
ssize_t idx);
diff --git a/src/lib/dev.c b/src/lib/dev.c
index f13c8423..22e77169 100644
--- a/src/lib/dev.c
+++ b/src/lib/dev.c
@@ -130,17 +130,14 @@ void ap_fini(void)
free(_ap_instance);
}
-#if 0
static int port_id_to_fd(int port_id)
{
int i;
for (i = 0; i < AP_MAX_FLOWS; ++i)
- if (_ap_instance->flows[i].port_id == port_id
- && _ap_instance->flows[i].state != FLOW_NULL)
+ if (_ap_instance->flows[i].port_id == port_id)
return i;
return -1;
}
-#endif
int flow_accept(char ** ae_name)
{
@@ -523,6 +520,14 @@ ssize_t flow_write(int fd, void * buf, size_t count)
return 0;
}
+int flow_select(const struct timespec * timeout)
+{
+ int port_id = shm_ap_rbuff_peek(_ap_instance->rb, timeout);
+ if (port_id < 0)
+ return port_id;
+ return port_id_to_fd(port_id);
+}
+
ssize_t flow_read(int fd, void * buf, size_t count)
{
int idx = -1;
diff --git a/src/lib/shm_ap_rbuff.c b/src/lib/shm_ap_rbuff.c
index 84f7617a..be4cd0c2 100644
--- a/src/lib/shm_ap_rbuff.c
+++ b/src/lib/shm_ap_rbuff.c
@@ -28,6 +28,7 @@
#include <ouroboros/logs.h>
#include <ouroboros/shm_ap_rbuff.h>
#include <ouroboros/lockfile.h>
+#include <ouroboros/time_utils.h>
#include <pthread.h>
#include <sys/mman.h>
@@ -39,6 +40,8 @@
#include <signal.h>
#include <sys/stat.h>
+#define PTHREAD_COND_CLOCK CLOCK_MONOTONIC
+
#define SHM_RBUFF_FILE_SIZE (SHM_RBUFF_SIZE * sizeof(struct rb_entry) \
+ 2 * sizeof(size_t) + sizeof(pthread_mutex_t) \
+ sizeof (pthread_cond_t))
@@ -54,7 +57,7 @@ struct shm_ap_rbuff {
struct rb_entry * shm_base; /* start of entry */
size_t * ptr_head; /* start of ringbuffer head */
size_t * ptr_tail; /* start of ringbuffer tail */
- pthread_mutex_t * shm_mutex; /* lock all free space in shm */
+ pthread_mutex_t * lock; /* lock all free space in shm */
pthread_cond_t * work; /* threads will wait for a signal */
pid_t api; /* api to which this rb belongs */
int fd;
@@ -73,31 +76,31 @@ struct shm_ap_rbuff * shm_ap_rbuff_create()
rb = malloc(sizeof(*rb));
if (rb == NULL) {
- LOG_DBGF("Could not allocate struct.");
+ LOG_DBG("Could not allocate struct.");
return NULL;
}
shm_fd = shm_open(fn, O_CREAT | O_EXCL | O_RDWR, 0666);
if (shm_fd == -1) {
- LOG_DBGF("Failed creating ring buffer.");
+ LOG_DBG("Failed creating ring buffer.");
free(rb);
return NULL;
}
if (fchmod(shm_fd, 0666)) {
- LOG_DBGF("Failed to chmod shared memory.");
+ LOG_DBG("Failed to chmod shared memory.");
free(rb);
return NULL;
}
if (ftruncate(shm_fd, SHM_RBUFF_FILE_SIZE - 1) < 0) {
- LOG_DBGF("Failed to extend ringbuffer.");
+ LOG_DBG("Failed to extend ringbuffer.");
free(rb);
return NULL;
}
if (write(shm_fd, "", 1) != 1) {
- LOG_DBGF("Failed to finalise extension of ringbuffer.");
+ LOG_DBG("Failed to finalise extension of ringbuffer.");
free(rb);
return NULL;
}
@@ -110,30 +113,31 @@ struct shm_ap_rbuff * shm_ap_rbuff_create()
0);
if (shm_base == MAP_FAILED) {
- LOG_DBGF("Failed to map shared memory.");
+ LOG_DBG("Failed to map shared memory.");
if (close(shm_fd) == -1)
- LOG_DBGF("Failed to close invalid shm.");
+ LOG_DBG("Failed to close invalid shm.");
if (shm_unlink(fn) == -1)
- LOG_DBGF("Failed to remove invalid shm.");
+ LOG_DBG("Failed to remove invalid shm.");
free(rb);
return NULL;
}
- rb->shm_base = shm_base;
- rb->ptr_head = (size_t *) (rb->shm_base + SHM_RBUFF_SIZE);
- rb->ptr_tail = rb->ptr_head + 1;
- rb->shm_mutex = (pthread_mutex_t *) (rb->ptr_tail + 1);
- rb->work = (pthread_cond_t *) (rb->shm_mutex + 1);
+ rb->shm_base = shm_base;
+ rb->ptr_head = (size_t *) (rb->shm_base + SHM_RBUFF_SIZE);
+ rb->ptr_tail = rb->ptr_head + 1;
+ rb->lock = (pthread_mutex_t *) (rb->ptr_tail + 1);
+ rb->work = (pthread_cond_t *) (rb->lock + 1);
pthread_mutexattr_init(&mattr);
pthread_mutexattr_setrobust(&mattr, PTHREAD_MUTEX_ROBUST);
pthread_mutexattr_setpshared(&mattr, PTHREAD_PROCESS_SHARED);
- pthread_mutex_init(rb->shm_mutex, &mattr);
+ pthread_mutex_init(rb->lock, &mattr);
pthread_condattr_init(&cattr);
pthread_condattr_setpshared(&cattr, PTHREAD_PROCESS_SHARED);
+ pthread_condattr_setclock(&cattr, PTHREAD_COND_CLOCK);
pthread_cond_init(rb->work, &cattr);
*rb->ptr_head = 0;
@@ -156,13 +160,13 @@ struct shm_ap_rbuff * shm_ap_rbuff_open(pid_t api)
rb = malloc(sizeof(*rb));
if (rb == NULL) {
- LOG_DBGF("Could not allocate struct.");
+ LOG_DBG("Could not allocate struct.");
return NULL;
}
shm_fd = shm_open(fn, O_RDWR, 0666);
if (shm_fd == -1) {
- LOG_DBGF("%d failed opening shared memory %s.", getpid(), fn);
+ LOG_DBG("%d failed opening shared memory %s.", getpid(), fn);
return NULL;
}
@@ -174,22 +178,22 @@ struct shm_ap_rbuff * shm_ap_rbuff_open(pid_t api)
0);
if (shm_base == MAP_FAILED) {
- LOG_DBGF("Failed to map shared memory.");
+ LOG_DBG("Failed to map shared memory.");
if (close(shm_fd) == -1)
- LOG_DBGF("Failed to close invalid shm.");
+ LOG_DBG("Failed to close invalid shm.");
if (shm_unlink(fn) == -1)
- LOG_DBGF("Failed to remove invalid shm.");
+ LOG_DBG("Failed to remove invalid shm.");
free(rb);
return NULL;
}
- rb->shm_base = shm_base;
- rb->ptr_head = (size_t *) (rb->shm_base + SHM_RBUFF_SIZE);
- rb->ptr_tail = rb->ptr_head + 1;
- rb->shm_mutex = (pthread_mutex_t *) (rb->ptr_tail + 1);
- rb->work = (pthread_cond_t *) (rb->shm_mutex + 1);
+ rb->shm_base = shm_base;
+ rb->ptr_head = (size_t *) (rb->shm_base + SHM_RBUFF_SIZE);
+ rb->ptr_tail = rb->ptr_head + 1;
+ rb->lock = (pthread_mutex_t *) (rb->ptr_tail + 1);
+ rb->work = (pthread_cond_t *) (rb->lock + 1);
rb->fd = shm_fd;
rb->api = api;
@@ -199,15 +203,15 @@ struct shm_ap_rbuff * shm_ap_rbuff_open(pid_t api)
void shm_ap_rbuff_close(struct shm_ap_rbuff * rb)
{
if (rb == NULL) {
- LOG_DBGF("Bogus input. Bugging out.");
+ LOG_DBG("Bogus input. Bugging out.");
return;
}
if (close(rb->fd) < 0)
- LOG_DBGF("Couldn't close shared memory.");
+ LOG_DBG("Couldn't close shared memory.");
if (munmap(rb->shm_base, SHM_RBUFF_FILE_SIZE) == -1)
- LOG_DBGF("Couldn't unmap shared memory.");
+ LOG_DBG("Couldn't unmap shared memory.");
free(rb);
}
@@ -218,7 +222,7 @@ void shm_ap_rbuff_destroy(struct shm_ap_rbuff * rb)
struct lockfile * lf = NULL;
if (rb == NULL) {
- LOG_DBGF("Bogus input. Bugging out.");
+ LOG_DBG("Bogus input. Bugging out.");
return;
}
@@ -227,7 +231,7 @@ void shm_ap_rbuff_destroy(struct shm_ap_rbuff * rb)
if (lf == NULL)
return;
if (lockfile_owner(lf) == getpid()) {
- LOG_DBGF("Ringbuffer %d destroyed by IRMd %d.",
+ LOG_DBG("Ringbuffer %d destroyed by IRMd %d.",
rb->api, getpid());
lockfile_close(lf);
} else {
@@ -238,16 +242,19 @@ void shm_ap_rbuff_destroy(struct shm_ap_rbuff * rb)
}
}
+ pthread_mutex_destroy(rb->lock);
+ pthread_cond_destroy(rb->work);
+
if (close(rb->fd) < 0)
- LOG_DBGF("Couldn't close shared memory.");
+ LOG_DBG("Couldn't close shared memory.");
sprintf(fn, SHM_AP_RBUFF_PREFIX "%d", rb->api);
if (munmap(rb->shm_base, SHM_RBUFF_FILE_SIZE) == -1)
- LOG_DBGF("Couldn't unmap shared memory.");
+ LOG_DBG("Couldn't unmap shared memory.");
if (shm_unlink(fn) == -1)
- LOG_DBGF("Failed to unlink shm.");
+ LOG_DBG("Failed to unlink shm.");
free(rb);
}
@@ -257,13 +264,13 @@ int shm_ap_rbuff_write(struct shm_ap_rbuff * rb, struct rb_entry * e)
if (rb == NULL || e == NULL)
return -1;
- if (pthread_mutex_lock(rb->shm_mutex) == EOWNERDEAD) {
- LOG_DBGF("Recovering dead mutex.");
- pthread_mutex_consistent(rb->shm_mutex);
+ if (pthread_mutex_lock(rb->lock) == EOWNERDEAD) {
+ LOG_DBG("Recovering dead mutex.");
+ pthread_mutex_consistent(rb->lock);
}
if (!shm_rbuff_free(rb)) {
- pthread_mutex_unlock(rb->shm_mutex);
+ pthread_mutex_unlock(rb->lock);
return -1;
}
@@ -273,11 +280,59 @@ int shm_ap_rbuff_write(struct shm_ap_rbuff * rb, struct rb_entry * e)
*head_el_ptr = *e;
*rb->ptr_head = (*rb->ptr_head + 1) & (SHM_RBUFF_SIZE -1);
- pthread_mutex_unlock(rb->shm_mutex);
+ pthread_mutex_unlock(rb->lock);
return 0;
}
+int shm_ap_rbuff_peek(struct shm_ap_rbuff * rb,
+ const struct timespec * timeout)
+{
+ struct timespec abstime;
+ int ret = 0;
+
+ if (rb == NULL)
+ return -EINVAL;
+
+ if (timeout != NULL) {
+ clock_gettime(PTHREAD_COND_CLOCK, &abstime);
+ ts_add(&abstime, timeout, &abstime);
+ }
+
+ pthread_cleanup_push((void(*)(void *))pthread_mutex_unlock,
+ (void *) rb->lock);
+
+ if (pthread_mutex_lock(rb->lock) == EOWNERDEAD) {
+ LOG_DBG("Recovering dead mutex.");
+ pthread_mutex_consistent(rb->lock);
+ }
+
+ while (shm_rbuff_empty(rb)) {
+ if (timeout != NULL)
+ ret = pthread_cond_timedwait(rb->work,
+ rb->lock,
+ &abstime);
+ else
+ ret = pthread_cond_wait(rb->work, rb->lock);
+
+ if (ret == EOWNERDEAD) {
+ LOG_DBG("Recovering dead mutex.");
+ pthread_mutex_consistent(rb->lock);
+ }
+
+ if (ret == ETIMEDOUT) {
+ pthread_mutex_unlock(rb->lock);
+ return -ret;
+ }
+ }
+
+ ret = (rb->shm_base + *rb->ptr_tail)->port_id;
+
+ pthread_cleanup_pop(true);
+
+ return ret;
+}
+
struct rb_entry * shm_ap_rbuff_read(struct shm_ap_rbuff * rb)
{
struct rb_entry * e = NULL;
@@ -286,26 +341,25 @@ struct rb_entry * shm_ap_rbuff_read(struct shm_ap_rbuff * rb)
return NULL;
pthread_cleanup_push((void(*)(void *))pthread_mutex_unlock,
- (void *) rb->shm_mutex);
+ (void *) rb->lock);
- if (pthread_mutex_lock(rb->shm_mutex) == EOWNERDEAD) {
- LOG_DBGF("Recovering dead mutex.");
- pthread_mutex_consistent(rb->shm_mutex);
+ if (pthread_mutex_lock(rb->lock) == EOWNERDEAD) {
+ LOG_DBG("Recovering dead mutex.");
+ pthread_mutex_consistent(rb->lock);
}
- while (tail_el_ptr->port_id < 0)
+ while (!shm_rbuff_empty(rb) && tail_el_ptr->port_id < 0)
*rb->ptr_tail = (*rb->ptr_tail + 1) & (SHM_RBUFF_SIZE -1);
while (shm_rbuff_empty(rb))
- if (pthread_cond_wait(rb->work, rb->shm_mutex)
- == EOWNERDEAD) {
- LOG_DBGF("Recovering dead mutex.");
- pthread_mutex_consistent(rb->shm_mutex);
+ if (pthread_cond_wait(rb->work, rb->lock) == EOWNERDEAD) {
+ LOG_DBG("Recovering dead mutex.");
+ pthread_mutex_consistent(rb->lock);
}
e = malloc(sizeof(*e));
if (e == NULL) {
- pthread_mutex_unlock(rb->shm_mutex);
+ pthread_mutex_unlock(rb->lock);
return NULL;
}
@@ -313,7 +367,7 @@ struct rb_entry * shm_ap_rbuff_read(struct shm_ap_rbuff * rb)
*rb->ptr_tail = (*rb->ptr_tail + 1) & (SHM_RBUFF_SIZE -1);
- pthread_cleanup_pop(1);
+ pthread_cleanup_pop(true);
return e;
}
@@ -322,13 +376,13 @@ ssize_t shm_ap_rbuff_read_port(struct shm_ap_rbuff * rb, int port_id)
{
ssize_t idx = -1;
- if (pthread_mutex_lock(rb->shm_mutex) == EOWNERDEAD) {
- LOG_DBGF("Recovering dead mutex.");
- pthread_mutex_consistent(rb->shm_mutex);
+ if (pthread_mutex_lock(rb->lock) == EOWNERDEAD) {
+ LOG_DBG("Recovering dead mutex.");
+ pthread_mutex_consistent(rb->lock);
}
if (shm_rbuff_empty(rb)) {
- pthread_mutex_unlock(rb->shm_mutex);
+ pthread_mutex_unlock(rb->lock);
return -1;
}
@@ -336,7 +390,7 @@ ssize_t shm_ap_rbuff_read_port(struct shm_ap_rbuff * rb, int port_id)
*rb->ptr_tail = (*rb->ptr_tail + 1) & (SHM_RBUFF_SIZE -1);
if (tail_el_ptr->port_id != port_id) {
- pthread_mutex_unlock(rb->shm_mutex);
+ pthread_mutex_unlock(rb->lock);
return -1;
}
@@ -344,7 +398,7 @@ ssize_t shm_ap_rbuff_read_port(struct shm_ap_rbuff * rb, int port_id)
*rb->ptr_tail = (*rb->ptr_tail + 1) & (SHM_RBUFF_SIZE -1);
- pthread_mutex_unlock(rb->shm_mutex);
+ pthread_mutex_unlock(rb->lock);
return idx;
}
@@ -355,9 +409,9 @@ pid_t shm_ap_rbuff_get_api(struct shm_ap_rbuff *rb)
if (rb == NULL)
return -1;
- pthread_mutex_lock(rb->shm_mutex);
+ pthread_mutex_lock(rb->lock);
api = rb->api;
- pthread_mutex_unlock(rb->shm_mutex);
+ pthread_mutex_unlock(rb->lock);
return api;
}
@@ -367,8 +421,8 @@ void shm_ap_rbuff_reset(struct shm_ap_rbuff * rb)
if (rb == NULL)
return;
- pthread_mutex_lock(rb->shm_mutex);
+ pthread_mutex_lock(rb->lock);
*rb->ptr_tail = 0;
*rb->ptr_head = 0;
- pthread_mutex_unlock(rb->shm_mutex);
+ pthread_mutex_unlock(rb->lock);
}
diff --git a/src/lib/shm_du_map.c b/src/lib/shm_du_map.c
index 6dc4a1bd..b090bb74 100644
--- a/src/lib/shm_du_map.c
+++ b/src/lib/shm_du_map.c
@@ -416,7 +416,7 @@ ssize_t shm_du_map_write(struct shm_du_map * dum,
int sz = size + sizeof *sdb;
#endif
uint8_t * write_pos;
- ssize_t index = -1;
+ ssize_t idx = -1;
if (dum == NULL || data == NULL) {
LOG_DBGF("Bogus input, bugging out.");
@@ -475,7 +475,7 @@ ssize_t shm_du_map_write(struct shm_du_map * dum,
memcpy(write_pos, data, len);
- index = *dum->ptr_head;
+ idx = *dum->ptr_head;
#ifdef SHM_DU_MAP_MULTI_BLOCK
*dum->ptr_head = (*dum->ptr_head + blocks) & (SHM_BLOCKS_IN_MAP - 1);
#else
@@ -483,7 +483,7 @@ ssize_t shm_du_map_write(struct shm_du_map * dum,
#endif
pthread_mutex_unlock(dum->shm_mutex);
- return index;
+ return idx;
}
int shm_du_map_read(uint8_t ** dst,
diff --git a/src/tools/CMakeLists.txt b/src/tools/CMakeLists.txt
index 9f5e6fbe..e8c24557 100644
--- a/src/tools/CMakeLists.txt
+++ b/src/tools/CMakeLists.txt
@@ -1,3 +1,4 @@
add_subdirectory(irm)
add_subdirectory(echo)
add_subdirectory(cbr)
+add_subdirectory(oping)
diff --git a/src/tools/oping/CMakeLists.txt b/src/tools/oping/CMakeLists.txt
new file mode 100644
index 00000000..a8fc7d86
--- /dev/null
+++ b/src/tools/oping/CMakeLists.txt
@@ -0,0 +1,21 @@
+include_directories(${CMAKE_CURRENT_SOURCE_DIR})
+include_directories(${CMAKE_CURRENT_BINARY_DIR})
+
+include_directories(${CMAKE_SOURCE_DIR}/include)
+include_directories(${CMAKE_BINARY_DIR}/include)
+
+find_library(LIBM_LIBRARIES m)
+if(NOT LIBM_LIBRARIES)
+ message(FATAL_ERROR "libm not found")
+endif()
+
+set(SOURCE_FILES
+ # Add source files here
+ oping.c
+)
+
+add_executable(oping ${SOURCE_FILES})
+
+target_link_libraries(oping LINK_PUBLIC ${LIBM_LIBRARIES} ouroboros)
+
+install(TARGETS oping RUNTIME DESTINATION usr/bin)
diff --git a/src/tools/oping/oping.c b/src/tools/oping/oping.c
new file mode 100644
index 00000000..cf8dc485
--- /dev/null
+++ b/src/tools/oping/oping.c
@@ -0,0 +1,176 @@
+/*
+ * Ouroboros - Copyright (C) 2016
+ *
+ * Ouroboros ping application
+ *
+ * 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 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 _POSIX_C_SOURCE 199506L
+
+#include <stdio.h>
+#include <string.h>
+#include <pthread.h>
+#include <stdint.h>
+#include <stdbool.h>
+
+#define OPING_BUF_SIZE 1500
+
+#define ECHO_REQUEST 0
+#define ECHO_REPLY 1
+
+#define OPING_MAX_FLOWS 256
+
+struct c {
+ char * s_apn;
+ int interval;
+ int count;
+ int size;
+
+ /* stats */
+ int sent;
+ int rcvd;
+ float rtt_min;
+ float rtt_max;
+ float rtt_avg;
+ float rtt_m2;
+
+ /* needs locking */
+ struct timespec * times;
+ pthread_mutex_t lock;
+
+ pthread_t reader_pt;
+ pthread_t writer_pt;
+} client;
+
+struct s {
+ struct timespec times[OPING_MAX_FLOWS];
+ pthread_mutex_t lock;
+
+ pthread_t cleaner_pt;
+ pthread_t accept_pt;
+ pthread_t server_pt;
+} server;
+
+struct oping_msg {
+ uint32_t type;
+ uint32_t id;
+};
+
+
+#include "oping_client.c"
+#include "oping_server.c"
+
+static void usage()
+{
+ printf("Usage: oping [OPTION]...\n"
+ "Checks liveness between a client and a server\n"
+ "and reports the Round Trip Time (RTT)\n\n"
+ " -l, --listen Run in server mode\n"
+ "\n"
+ " -c, --count Number of packets (default 1000)\n"
+ " -i, --interval Interval (ms, default 1000)\n"
+ " -n, --server-apn Name of the oping server\n"
+ " -s, --size Payload size (b, default 64)\n"
+ " --help Display this help text and exit\n");
+}
+
+int main(int argc, char ** argv)
+{
+ int ret = -1;
+ char * rem = NULL;
+ bool serv = false;
+
+ if (ap_init(argv[0])) {
+ printf("Failed to init AP.\n");
+ exit(EXIT_FAILURE);
+ }
+
+ argc--;
+ argv++;
+
+ client.s_apn = NULL;
+ client.interval = 1000;
+ client.size = 64;
+ client.count = 1000;
+
+ while (argc > 0) {
+ if (strcmp(*argv, "-i") == 0 ||
+ strcmp(*argv, "--interval") == 0) {
+ client.interval = strtol(*(++argv), &rem, 10);
+ --argc;
+ } else if (strcmp(*argv, "-n") == 0 ||
+ strcmp(*argv, "--server_apn") == 0) {
+ client.s_apn = *(++argv);
+ --argc;
+ } else if (strcmp(*argv, "-c") == 0 ||
+ strcmp(*argv, "--count") == 0) {
+ client.count = strtol(*(++argv), &rem, 10);
+ --argc;
+ } else if (strcmp(*argv, "-s") == 0 ||
+ strcmp(*argv, "--size") == 0) {
+ client.size = strtol(*(++argv), &rem, 10);
+ --argc;
+ } else if (strcmp(*argv, "-l") == 0 ||
+ strcmp(*argv, "--listen") == 0) {
+ serv = true;
+ } else {
+ usage();
+ exit(EXIT_SUCCESS);
+ }
+ argc--;
+ argv++;
+ }
+
+ if (serv) {
+ ret = server_main();
+ } else {
+ if (client.s_apn == NULL) {
+ printf("No server specified.\n");
+ usage();
+ exit(EXIT_SUCCESS);
+ }
+ if (client.interval > 10000) {
+ printf("Ping interval truncated to 10s.\n");
+ client.interval = 10000;
+ }
+ if (client.size > OPING_BUF_SIZE) {
+ printf("Packet size truncated to 1500 bytes.\n");
+ client.size = 1500;
+ }
+
+ if (client.size < 2) {
+ printf("Packet size set to 64 bytes.\n");
+ client.size = 64;
+ }
+
+ if (client.count > 1000000) {
+ printf("Count truncated to 1 million SDUs.\n");
+ client.count = 1000000;
+ }
+
+ ret = client_main();
+ }
+
+ ap_fini();
+
+ if (ret < 0)
+ exit(EXIT_FAILURE);
+
+ exit(EXIT_SUCCESS);
+}
diff --git a/src/tools/oping/oping_client.c b/src/tools/oping/oping_client.c
new file mode 100644
index 00000000..23a57549
--- /dev/null
+++ b/src/tools/oping/oping_client.c
@@ -0,0 +1,234 @@
+/*
+ * Ouroboros - Copyright (C) 2016
+ *
+ * Ouroboros ping application
+ *
+ * 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 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.
+ */
+
+#include <ouroboros/dev.h>
+#include <ouroboros/errno.h>
+#include <ouroboros/time_utils.h>
+
+#ifdef __FreeBSD__
+#define __XSI_VISIBLE 500
+#endif
+
+#include <signal.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <arpa/inet.h>
+#include <math.h>
+#include <float.h>
+
+void shutdown_client(int signo, siginfo_t * info, void * c)
+{
+ switch(signo) {
+ case SIGINT:
+ case SIGTERM:
+ case SIGHUP:
+ pthread_cancel(client.reader_pt);
+ pthread_cancel(client.writer_pt);
+ default:
+ return;
+ }
+}
+
+void * reader(void * o)
+{
+ struct timespec timeout = {2, 0};
+ struct timespec now = {0, 0};
+
+ struct oping_msg * msg;
+ char buf[OPING_BUF_SIZE];
+ int fd = 0;
+ int msg_len = 0;
+ float ms = 0;
+ float d = 0;
+
+ msg = (struct oping_msg *) buf;
+
+ /* FIXME: use flow timeout option once we have it */
+ while(client.rcvd != client.count &&
+ (fd = flow_select(&timeout)) != -ETIMEDOUT) {
+ flow_cntl(fd, FLOW_F_SETFL, FLOW_O_NONBLOCK);
+ while (!((msg_len = flow_read(fd, buf, OPING_BUF_SIZE)) < 0)) {
+ if (msg_len < 0)
+ continue;
+
+ if (ntohl(msg->type) != ECHO_REPLY) {
+ printf("Invalid message received (%d).\n",
+ msg->type);
+ continue;
+ }
+
+ if (ntohl(msg->id) >= client.count) {
+ printf("Invalid id.\n");
+ continue;
+ }
+
+ ++client.rcvd;
+
+ clock_gettime(CLOCK_REALTIME, &now);
+
+ pthread_mutex_lock(&client.lock);
+ ms = ts_diff_us(&client.times[ntohl(msg->id)], &now)
+ /1000.0;
+ pthread_mutex_unlock(&client.lock);
+
+ printf("%d bytes from %s: seq=%d time=%.3f ms\n",
+ msg_len,
+ client.s_apn,
+ ntohl(msg->id),
+ ms);
+
+ if (ms < client.rtt_min)
+ client.rtt_min = ms;
+ if (ms > client.rtt_max)
+ client.rtt_max = ms;
+
+ d = (ms - client.rtt_avg);
+ client.rtt_avg += d / (float) client.rcvd;
+ client.rtt_m2 += d * (ms - client.rtt_avg);
+ }
+ }
+
+ return (void *) 0;
+}
+
+void * writer(void * o)
+{
+ int * fdp = (int *) o;
+ struct timespec now;
+ struct timespec wait = {client.interval / 1000, client.interval % 1000};
+ struct oping_msg * msg;
+ char * buf = malloc(client.size);
+
+ if (buf == NULL)
+ return (void *) -ENOMEM;
+
+ if (fdp == NULL)
+ return (void *) -EINVAL;
+
+ memset(buf, 0, client.size);
+
+ msg = (struct oping_msg *) buf;
+
+ printf("Pinging %s with %d bytes of data:\n\n",
+ client.s_apn, client.size);
+
+ while (client.sent < client.count) {
+ nanosleep(&wait, NULL);
+ msg->id = htonl(client.sent);
+ if (flow_write(*fdp, buf, client.size) == -1) {
+ printf("Failed to send SDU.\n");
+ flow_dealloc(*fdp);
+ return (void *) -1;
+ }
+
+ clock_gettime(CLOCK_REALTIME, &now);
+
+ pthread_mutex_lock(&client.lock);
+ client.times[client.sent++] = now;
+ pthread_mutex_unlock(&client.lock);
+ }
+
+ return (void *) 0;
+}
+
+int client_main()
+{
+ struct sigaction sig_act;
+
+ struct timespec tic;
+ struct timespec toc;
+
+ int fd = flow_alloc(client.s_apn, NULL, NULL);
+ if (fd < 0) {
+ printf("Failed to allocate flow.\n");
+ return -1;
+ }
+
+ if (flow_alloc_res(fd)) {
+ printf("Flow allocation refused.\n");
+ flow_dealloc(fd);
+ return -1;
+ }
+
+ memset(&sig_act, 0, sizeof sig_act);
+ sig_act.sa_sigaction = &shutdown_client;
+ sig_act.sa_flags = 0;
+
+ if (sigaction(SIGINT, &sig_act, NULL) ||
+ sigaction(SIGTERM, &sig_act, NULL) ||
+ sigaction(SIGHUP, &sig_act, NULL) ||
+ sigaction(SIGPIPE, &sig_act, NULL)) {
+ printf("Failed to install sighandler.\n");
+ return -1;
+ }
+
+ pthread_mutex_init(&client.lock, NULL);
+ pthread_mutex_lock(&client.lock);
+ client.sent = 0;
+ client.rcvd = 0;
+ client.rtt_min = FLT_MAX;
+ client.rtt_max = 0;
+ client.rtt_avg = 0;
+ client.rtt_m2 = 0;
+ client.times = malloc(sizeof(struct timespec) * client.count);
+ if (client.times == NULL) {
+ pthread_mutex_unlock(&client.lock);
+ return -ENOMEM;
+ }
+
+ pthread_mutex_unlock(&client.lock);
+
+ clock_gettime(CLOCK_REALTIME, &tic);
+
+ pthread_create(&client.reader_pt, NULL, reader, NULL);
+ pthread_create(&client.writer_pt, NULL, writer, &fd);
+
+ pthread_join(client.writer_pt, NULL);
+ pthread_join(client.reader_pt, NULL);
+
+ clock_gettime(CLOCK_REALTIME, &toc);
+
+ printf("\n");
+ printf("--- %s ping statistics ---\n", client.s_apn);
+ printf("%d SDU's transmitted, ", client.sent);
+ printf("%d received, ", client.rcvd);
+ printf("%d%% packet loss, ", 100 - ((100 * client.rcvd) / client.sent));
+ printf("time: %.3f ms\n", ts_diff_us(&tic, &toc) / 1000.0);
+ printf("rtt min/avg/max/mdev = %.3f/%.3f/%.3f/",
+ client.rtt_min,
+ client.rtt_avg,
+ client.rtt_max);
+ client.rcvd > 1 ?
+ printf("%.3f ms\n",
+ sqrt(client.rtt_m2 / (float) (client.rcvd - 1))) :
+ printf("Nan ms\n");
+
+ pthread_mutex_lock(&client.lock);
+ free(client.times);
+ pthread_mutex_unlock(&client.lock);
+ pthread_mutex_destroy(&client.lock);
+
+ flow_dealloc(fd);
+
+ return 0;
+}
diff --git a/src/tools/oping/oping_server.c b/src/tools/oping/oping_server.c
new file mode 100644
index 00000000..eb0b511b
--- /dev/null
+++ b/src/tools/oping/oping_server.c
@@ -0,0 +1,162 @@
+/*
+ * Ouroboros - Copyright (C) 2016
+ *
+ * Ouroboros ping application
+ *
+ * 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 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.
+ */
+
+#include <ouroboros/dev.h>
+
+#ifdef __FreeBSD__
+#define __XSI_VISIBLE 500
+#endif
+
+#include <stdlib.h>
+#include <signal.h>
+#include <arpa/inet.h>
+
+void shutdown_server(int signo, siginfo_t * info, void * c)
+{
+ switch(signo) {
+ case SIGINT:
+ case SIGTERM:
+ case SIGHUP:
+ pthread_cancel(server.server_pt);
+ pthread_cancel(server.accept_pt);
+ pthread_cancel(server.cleaner_pt);
+ default:
+ return;
+ }
+}
+
+void * cleaner_thread(void * o)
+{
+ int i = 0;
+ struct timespec now = {0, 0};
+ int deadline_ms = 10000;
+
+ while (true) {
+ clock_gettime(CLOCK_REALTIME, &now);
+ pthread_mutex_lock(&server.lock);
+ for (i = 0; i < OPING_MAX_FLOWS; ++i)
+ if (ts_diff_ms(&server.times[i], &now) > deadline_ms)
+ flow_dealloc(i);
+
+ pthread_mutex_unlock(&server.lock);
+ sleep(1);
+ }
+}
+
+void * server_thread(void *o)
+{
+ char buf[OPING_BUF_SIZE];
+ int msg_len = 0;
+ struct oping_msg * msg = (struct oping_msg *) buf;
+ struct timespec now = {0, 0};
+
+ while (true) {
+
+ int fd = flow_select(NULL);
+ while (!((msg_len = flow_read(fd, buf, OPING_BUF_SIZE)) < 0)) {
+ if (msg_len < 0)
+ continue;
+
+ if (ntohl(msg->type) != ECHO_REQUEST) {
+ printf("Invalid message received.\n");
+ continue;
+ }
+
+ clock_gettime(CLOCK_REALTIME, &now);
+
+ pthread_mutex_lock(&server.lock);
+ server.times[fd] = now;
+ pthread_mutex_unlock(&server.lock);
+
+ msg->type = htonl((uint32_t) ECHO_REPLY);
+
+ if (flow_write(fd, buf, msg_len) < 0) {
+ printf("Error writing to flow (fd %d).\n", fd);
+ flow_dealloc(fd);
+ }
+ }
+ }
+
+ return (void *) 0;
+}
+
+void * accept_thread(void * o)
+{
+ int fd = 0;
+ struct timespec now = {0, 0};
+
+ printf("Ouroboros ping server started.\n");
+
+ while (true) {
+ fd = flow_accept(NULL);
+ if (fd < 0) {
+ printf("Failed to accept flow.\n");
+ break;
+ }
+
+ printf("New flow %d.\n", fd);
+
+ if (flow_alloc_resp(fd, 0)) {
+ printf("Failed to give an allocate response.\n");
+ flow_dealloc(fd);
+ continue;
+ }
+
+ clock_gettime(CLOCK_REALTIME, &now);
+
+ pthread_mutex_lock(&server.lock);
+ server.times[fd] = now;
+ pthread_mutex_unlock(&server.lock);
+
+ flow_cntl(fd, FLOW_F_SETFL, FLOW_O_NONBLOCK);
+ }
+
+ return (void *) 0;
+}
+
+int server_main()
+{
+ struct sigaction sig_act;
+
+ memset(&sig_act, 0, sizeof sig_act);
+ sig_act.sa_sigaction = &shutdown_server;
+ sig_act.sa_flags = 0;
+
+ if (sigaction(SIGINT, &sig_act, NULL) ||
+ sigaction(SIGTERM, &sig_act, NULL) ||
+ sigaction(SIGHUP, &sig_act, NULL) ||
+ sigaction(SIGPIPE, &sig_act, NULL)) {
+ printf("Failed to install sighandler.\n");
+ return -1;
+ }
+
+ pthread_create(&server.cleaner_pt, NULL, cleaner_thread, NULL);
+ pthread_create(&server.accept_pt, NULL, accept_thread, NULL);
+ pthread_create(&server.server_pt, NULL, server_thread, NULL);
+
+ pthread_join(server.server_pt, NULL);
+ pthread_join(server.accept_pt, NULL);
+ pthread_join(server.cleaner_pt, NULL);
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-02 08:47:20 +0000