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authorJordan Augé <jordan.auge+fdio@cisco.com>2019-07-26 23:20:30 +0200
committerMauro Sardara <msardara@cisco.com>2019-07-29 17:13:35 +0200
commit0a1c6b5565e20167d1f1f33a5a8b597f420b18b0 (patch)
tree98c5da8f231fbd3dc2ce6502040e29c8333d9ffc /ctrl/libhicnctrl/src
parent05ca0aa8f612ee48fb66d4dbebe596b7f1e03181 (diff)
[HICN-252] Add per-application policy framework to hicn-light forwarder
Change-Id: I0531cd7a7de179581295ae34766c81cd9cf3e172 Signed-off-by: Jordan Augé <jordan.auge+fdio@cisco.com> Signed-off-by: Mauro Sardara <msardara@cisco.com> Co-authored-by: Mauro Sardara <msardara@cisco.com>
Diffstat (limited to 'ctrl/libhicnctrl/src')
-rw-r--r--ctrl/libhicnctrl/src/CMakeLists.txt87
-rw-r--r--ctrl/libhicnctrl/src/api.c2163
-rw-r--r--ctrl/libhicnctrl/src/cli.c381
-rw-r--r--ctrl/libhicnctrl/src/face.c245
-rw-r--r--ctrl/libhicnctrl/src/util/hash.h246
-rw-r--r--ctrl/libhicnctrl/src/util/ip_address.h316
-rw-r--r--ctrl/libhicnctrl/src/util/log.c126
-rw-r--r--ctrl/libhicnctrl/src/util/log.h66
-rw-r--r--ctrl/libhicnctrl/src/util/policy.c53
-rw-r--r--ctrl/libhicnctrl/src/util/policy.h266
-rw-r--r--ctrl/libhicnctrl/src/util/token.h40
-rw-r--r--ctrl/libhicnctrl/src/util/types.h36
12 files changed, 4025 insertions, 0 deletions
diff --git a/ctrl/libhicnctrl/src/CMakeLists.txt b/ctrl/libhicnctrl/src/CMakeLists.txt
new file mode 100644
index 000000000..ebccb7ddd
--- /dev/null
+++ b/ctrl/libhicnctrl/src/CMakeLists.txt
@@ -0,0 +1,87 @@
+# Copyright (c) 2017-2019 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+include(BuildMacros)
+
+list(APPEND COMPILER_DEFINITIONS
+ "-DWITH_POLICY"
+# "-DWITH_UPDATE"
+)
+
+set(HEADER_FILES
+ api.h
+ commands.h
+ face.h
+)
+
+set(UTIL_HEADER_FILES
+ face.h
+ util/ip_address.h
+ util/log.h
+ util/policy.h
+ util/token.h
+ util/types.h
+)
+
+set(SOURCE_FILES
+ api.c
+ util/policy.c
+ util/log.c
+)
+
+set(LIBRARIES
+ m
+)
+
+set(INCLUDE_DIRS
+ ./
+ ../includes/
+)
+
+if (ANDROID_API)
+ build_library(${LIBHICN_CTRL}
+ STATIC
+ SOURCES ${SOURCE_FILES}
+ INSTALL_HEADERS ${TO_INSTALL_HEADER_FILES}
+ LINK_LIBRARIES ${LIBRARIES}
+ COMPONENT ${LIBHICNCTRL_COMPONENT}
+ INCLUDE_DIRS ${INCLUDE_DIRS}
+ INSTALL_ROOT_DIR hicn
+ DEFINITIONS ${COMPILER_DEFINITIONS}
+ )
+else ()
+ build_library(${LIBHICN_CTRL}
+ SHARED STATIC
+ SOURCES ${SOURCE_FILES}
+ INSTALL_HEADERS ${TO_INSTALL_HEADER_FILES}
+ LINK_LIBRARIES ${LIBRARIES}
+ COMPONENT ${LIBHICNCTRL_COMPONENT}
+ INCLUDE_DIRS ${INCLUDE_DIRS}
+ INSTALL_ROOT_DIR hicn
+ DEFINITIONS ${COMPILER_DEFINITIONS}
+ )
+endif ()
+
+if(NOT ANDROID_API AND NOT COMPILE_FOR_IOS)
+ list(APPEND DAEMON_SRC
+ cli.c
+ )
+ build_executable(${HICN_CTRL}
+ SOURCES ${DAEMON_SRC}
+ LINK_LIBRARIES ${LIBHICN_CTRL_SHARED}
+ DEPENDS ${LIBHICN_CTRL_SHARED}
+ COMPONENT ${LIBHICNCTRL_COMPONENT}
+ INCLUDE_DIRS ${INCLUDE_DIRS}
+ DEFINITIONS ${COMPILER_DEFINITIONS}
+ )
+endif ()
diff --git a/ctrl/libhicnctrl/src/api.c b/ctrl/libhicnctrl/src/api.c
new file mode 100644
index 000000000..3d8a2c166
--- /dev/null
+++ b/ctrl/libhicnctrl/src/api.c
@@ -0,0 +1,2163 @@
+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * \file api.c
+ * \brief Implementation of hICN control library API
+ */
+
+#include <assert.h> // assert
+#include <math.h> // log2
+#include <stdio.h> // snprintf
+#include <string.h> // memmove, strcasecmp
+#include <sys/socket.h> // socket
+#include <unistd.h> // close, fcntl
+#include <fcntl.h> // fcntl
+
+#include <hicn/ctrl/api.h>
+#include <hicn/ctrl/commands.h>
+#include "util/log.h"
+#include "util/token.h"
+#include <strings.h>
+
+#define PORT 9695
+
+/*
+ * list was working with all seq set to 0, but it seems hicnLightControl uses
+ * 1, and replies with the same seqno
+ */
+#define HICN_CTRL_SEND_SEQ_INIT 1
+#define HICN_CTRL_RECV_SEQ_INIT 1
+
+#define MAX(x, y) ((x > y) ? x : y)
+
+/**
+ * \brief Defines the default size for the allocated data arrays holding the
+ * results of API calls.
+ *
+ * This size should not be too small to avoid wasting memoyy, but also not too
+ * big to avoid unnecessary realloc's. Later on this size is doubled at each
+ * reallocation.
+ */
+#define DEFAULT_SIZE_LOG 3
+
+/**
+ * In practise, we want to preserve enough room to store a full packet of
+ * average expected size (say a header + N payload elements).
+ */
+#define AVG_ELEMENTS (1 << DEFAULT_SIZE_LOG)
+#define AVG_BUFLEN sizeof(hc_msg_header_t) + AVG_ELEMENTS * sizeof(hc_msg_payload_t)
+
+/*
+ * We should at least have buffer space allowing to store one processable unit
+ * of data, either the header of the maximum possible payload
+ */
+#define MIN_BUFLEN MAX(sizeof(hc_msg_header_t), sizeof(hc_msg_payload_t))
+
+static const struct in6_addr loopback_addr = IN6ADDR_LOOPBACK_INIT;
+
+/* /!\ Please update constants in header file upon changes */
+const char * connection_type_str[] = {
+#define _(x) [CONNECTION_TYPE_ ## x] = STRINGIZE(x),
+foreach_connection_type
+#undef _
+};
+
+#define IS_VALID_CONNECTION_TYPE(x) IS_VALID_ENUM_TYPE(CONNECTION_TYPE, x)
+
+hc_connection_type_t
+connection_type_from_str(const char * str)
+{
+ if (strcasecmp(str, "TCP") == 0)
+ return CONNECTION_TYPE_TCP;
+ else if (strcasecmp(str, "UDP") == 0)
+ return CONNECTION_TYPE_UDP;
+ else if (strcasecmp(str, "HICN") == 0)
+ return CONNECTION_TYPE_HICN;
+ else
+ return CONNECTION_TYPE_UNDEFINED;
+}
+
+/* Conversions to shield lib user from heterogeneity */
+
+#define IS_VALID_LIST_CONNECTIONS_TYPE(x) ((x >= CONN_GRE) && (x <= CONN_HICN))
+
+static const hc_connection_type_t map_from_list_connections_type[] = {
+ [CONN_GRE] = CONNECTION_TYPE_UNDEFINED,
+ [CONN_TCP] = CONNECTION_TYPE_TCP,
+ [CONN_UDP] = CONNECTION_TYPE_UDP,
+ [CONN_MULTICAST] = CONNECTION_TYPE_UNDEFINED,
+ [CONN_L2] = CONNECTION_TYPE_UNDEFINED,
+ [CONN_HICN] = CONNECTION_TYPE_HICN,
+};
+
+typedef enum {
+ ENCAP_TCP,
+ ENCAP_UDP,
+ ENCAP_ETHER,
+ ENCAP_LOCAL,
+ ENCAP_HICN
+} EncapType;
+
+#define IS_VALID_LIST_LISTENERS_TYPE(x) ((x >= ENCAP_TCP) && (x <= ENCAP_HICN))
+
+static const hc_connection_type_t map_from_encap_type[] = {
+ [ENCAP_TCP] = CONNECTION_TYPE_TCP,
+ [ENCAP_UDP] = CONNECTION_TYPE_UDP,
+ [ENCAP_ETHER] = CONNECTION_TYPE_UNDEFINED,
+ [ENCAP_LOCAL] = CONNECTION_TYPE_UNDEFINED,
+ [ENCAP_HICN] = CONNECTION_TYPE_HICN,
+};
+
+static const connection_type map_to_connection_type[] = {
+ [CONNECTION_TYPE_TCP] = TCP_CONN,
+ [CONNECTION_TYPE_UDP] = UDP_CONN,
+ [CONNECTION_TYPE_HICN] = HICN_CONN,
+};
+
+static const listener_mode map_to_listener_mode[] = {
+ [CONNECTION_TYPE_TCP] = IP_MODE,
+ [CONNECTION_TYPE_UDP] = IP_MODE,
+ [CONNECTION_TYPE_HICN] = HICN_MODE,
+};
+
+#define IS_VALID_LIST_CONNECTIONS_STATE(x) ((x >= IFACE_UP) && (x <= IFACE_UNKNOWN))
+
+/* /!\ Please update constants in header file upon changes */
+const char * connection_state_str[] = {
+#define _(x) [HC_CONNECTION_STATE_ ## x] = STRINGIZE(x),
+foreach_connection_state
+#undef _
+};
+
+/*
+#define IS_VALID_CONNECTION_STATE(x) IS_VALID_ENUM_TYPE(CONNECTION_STATE, x)
+
+static const connection_state map_to_connection_state[] = {
+ [HC_CONNECTION_STATE_UP] = IFACE_UP,
+ [HC_CONNECTION_STATE_DOWN] = IFACE_DOWN,
+};
+
+*/
+
+static const hc_connection_state_t map_from_list_connections_state[] = {
+ [IFACE_UP] = HC_CONNECTION_STATE_UP,
+ [IFACE_DOWN] = HC_CONNECTION_STATE_DOWN,
+ [IFACE_UNKNOWN] = HC_CONNECTION_STATE_UNDEFINED,
+};
+
+
+#define connection_state_to_face_state(x) ((face_state_t)x)
+#define face_state_to_connection_state(x) ((hc_connection_state_t)x)
+
+#define IS_VALID_ADDR_TYPE(x) ((x >= ADDR_INET) && (x <= ADDR_UNIX))
+
+static const int map_from_addr_type[] = {
+ [ADDR_INET] = AF_INET,
+ [ADDR_INET6] = AF_INET6,
+ [ADDR_LINK] = AF_UNSPEC,
+ [ADDR_IFACE] = AF_UNSPEC,
+ [ADDR_UNIX] = AF_UNSPEC,
+};
+
+static const address_type map_to_addr_type[] = {
+ [AF_INET] = ADDR_INET,
+ [AF_INET6] = ADDR_INET6,
+};
+
+/******************************************************************************
+ * Message helper types and aliases
+ ******************************************************************************/
+
+#define foreach_hc_command \
+ _(add_connection) \
+ _(remove_connection) \
+ _(list_connections) \
+ _(add_listener) \
+ _(remove_listener) \
+ _(list_listeners) \
+ _(add_route) \
+ _(remove_route) \
+ _(list_routes) \
+ _(cache_store) \
+ _(cache_serve) \
+ /*_(cache_clear) */ \
+ _(set_strategy) \
+ _(set_wldr) \
+ _(add_punting) \
+ _(mapme_activator) \
+ _(mapme_timing)
+
+typedef header_control_message hc_msg_header_t;
+
+typedef union {
+#define _(x) x ## _command x;
+ foreach_hc_command
+#undef _
+} hc_msg_payload_t;
+
+
+typedef struct hc_msg_s {
+ hc_msg_header_t hdr;
+ hc_msg_payload_t payload;
+} hc_msg_t;
+
+/******************************************************************************
+ * Control Data
+ ******************************************************************************/
+
+hc_data_t *
+hc_data_create(size_t in_element_size, size_t out_element_size)
+{
+ hc_data_t * data = malloc(sizeof(hc_data_t));
+ if (!data)
+ goto ERR_MALLOC;
+
+ /* FIXME Could be NULL thanks to realloc provided size is 0 */
+ data->max_size_log = DEFAULT_SIZE_LOG;
+ data->in_element_size = in_element_size;
+ data->out_element_size = out_element_size;
+ data->size = 0;
+ data->complete = 0;
+ data->command_id = 0; // TODO this could also be a busy mark in the socket
+ /* No callback needed in blocking code for instance */
+ data->complete_cb = NULL;
+
+ data->buffer = malloc((1 << data->max_size_log) * data->out_element_size);
+ if (!data->buffer)
+ goto ERR_BUFFER;
+
+ return data;
+
+ERR_BUFFER:
+ free(data);
+ERR_MALLOC:
+ return NULL;
+}
+
+void
+hc_data_free(hc_data_t * data)
+{
+ if (data->buffer)
+ free(data->buffer);
+ free(data);
+}
+
+int
+hc_data_ensure_available(hc_data_t * data, size_t count)
+{
+ size_t new_size_log = (data->size + count - 1 > 0)
+ ? log2(data->size + count - 1) + 1
+ : 0;
+ if (new_size_log > data->max_size_log) {
+ data->max_size_log = new_size_log;
+ data->buffer = realloc(data->buffer, (1 << new_size_log) * data->out_element_size);
+ if (!data->buffer)
+ return LIBHICNCTRL_FAILURE;
+ }
+ return LIBHICNCTRL_SUCCESS;
+}
+
+int
+hc_data_push_many(hc_data_t * data, const void * elements, size_t count)
+{
+ if (hc_data_ensure_available(data, count) < 0)
+ return LIBHICNCTRL_FAILURE;
+
+ memcpy(data->buffer + data->size * data->out_element_size, elements,
+ count * data->out_element_size);
+ data->size += count;
+ return LIBHICNCTRL_SUCCESS;
+}
+
+int
+hc_data_push(hc_data_t * data, const void * element)
+{
+ return hc_data_push_many(data, element, 1);
+}
+
+/**
+ *
+ * NOTE: This function make sure there is enough room available in the data
+ * structure.
+ */
+u8 *
+hc_data_get_next(hc_data_t * data)
+{
+ if (hc_data_ensure_available(data, 1) < 0)
+ return NULL;
+
+ return data->buffer + data->size * data->out_element_size;
+}
+
+int
+hc_data_set_callback(hc_data_t * data, data_callback_t cb, void * cb_data)
+{
+ data->complete_cb = cb;
+ data->complete_cb_data = cb_data;
+ return LIBHICNCTRL_SUCCESS;
+}
+
+int
+hc_data_set_complete(hc_data_t * data)
+{
+ data->complete = true;
+ if (data->complete_cb)
+ return data->complete_cb(data, data->complete_cb_data);
+ return LIBHICNCTRL_SUCCESS;
+}
+
+int
+hc_data_reset(hc_data_t * data)
+{
+ data->size = 0;
+ return LIBHICNCTRL_SUCCESS;
+}
+
+/******************************************************************************
+ * Control socket
+ ******************************************************************************/
+
+/**
+ * \brief Parse a connection URL into a sockaddr
+ * \param [in] url - URL
+ * \param [out] sa - Resulting struct sockaddr, expected zero'ed.
+ * \return 0 if parsing succeeded, a negative error value otherwise.
+ */
+int
+hc_sock_parse_url(const char * url, struct sockaddr * sa)
+{
+ /* FIXME URL parsing is currently not implemented */
+ assert(!url);
+
+ /*
+ * A temporary solution is to inspect the sa_family fields of the passed in
+ * sockaddr, which defaults to AF_UNSPEC (0) and thus creates an IPv4/TCP
+ * connection to localhost.
+ */
+ switch (sa->sa_family) {
+ case AF_UNSPEC:
+ case AF_INET:
+ {
+ struct sockaddr_in * sai = (struct sockaddr_in *)sa;
+ sai->sin_family = AF_INET;
+ sai->sin_port = htons(PORT);
+ sai->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+ break;
+ }
+ case AF_INET6:
+ {
+ struct sockaddr_in6 * sai6 = (struct sockaddr_in6 *)sa;
+ sai6->sin6_family = AF_INET6;
+ sai6->sin6_port = htons(PORT);
+ sai6->sin6_addr = loopback_addr;
+ break;
+ }
+ default:
+ return LIBHICNCTRL_FAILURE;
+ }
+
+ return LIBHICNCTRL_SUCCESS;
+}
+
+hc_sock_t *
+hc_sock_create_url(const char * url)
+{
+ hc_sock_t * s = malloc(sizeof(hc_sock_t));
+ if (!s)
+ goto ERR_MALLOC;
+
+ s->url = url ? strdup(url) : NULL;
+
+ s->fd = socket(AF_INET, SOCK_STREAM, 0);
+ if (s->fd < 0)
+ goto ERR_SOCKET;
+
+ if (hc_sock_reset(s) < 0)
+ goto ERR_RESET;
+
+ return s;
+
+ERR_RESET:
+ close(s->fd);
+ERR_SOCKET:
+ free(s);
+ERR_MALLOC:
+ return NULL;
+}
+
+hc_sock_t *
+hc_sock_create(void)
+{
+ return hc_sock_create_url(NULL);
+}
+
+void
+hc_sock_free(hc_sock_t * s)
+{
+ if (s->url)
+ free(s->url);
+ close(s->fd);
+ free(s);
+}
+
+int
+hc_sock_set_nonblocking(hc_sock_t *s)
+{
+ return (fcntl(s->fd, F_SETFL, fcntl(s->fd, F_GETFL) | O_NONBLOCK) < 0);
+}
+
+int
+hc_sock_connect(hc_sock_t *s)
+{
+ struct sockaddr_storage ss = { 0 };
+
+ if (hc_sock_parse_url(s->url, (struct sockaddr *)&ss) < 0)
+ goto ERR_PARSE;
+
+ size_t size = ss.ss_family == AF_INET
+ ? sizeof(struct sockaddr_in)
+ : sizeof(struct sockaddr_in6);
+ if (connect(s->fd, (struct sockaddr *)&ss, size) < 0) //sizeof(struct sockaddr)) < 0)
+ goto ERR_CONNECT;
+
+ return LIBHICNCTRL_SUCCESS;
+
+ERR_CONNECT:
+ERR_PARSE:
+ return LIBHICNCTRL_FAILURE;
+}
+
+int
+hc_sock_send(hc_sock_t * s, hc_msg_t * msg, size_t msglen)
+{
+ return send(s->fd, msg, msglen, 0);
+}
+
+int
+hc_sock_get_available(hc_sock_t * s, u8 ** buffer, size_t * size)
+{
+ *buffer = s->buf + s->woff;
+ *size = RECV_BUFLEN - s->woff;
+
+ return LIBHICNCTRL_SUCCESS;
+}
+
+int
+hc_sock_recv(hc_sock_t * s, hc_data_t * data)
+{
+ int rc;
+
+ /*
+ * This condition should be ensured to guarantee correct processing of
+ * messages
+ */
+ assert(RECV_BUFLEN - s->woff > MIN_BUFLEN);
+
+ rc = recv(s->fd, s->buf + s->woff, RECV_BUFLEN - s->woff, 0);
+ if (rc == 0) {
+ return LIBHICNCTRL_FAILURE;
+ /* Connection has been closed */
+ // XXX
+ }
+ if (rc < 0) {
+ /* Error occurred */
+ // XXX check for EWOULDBLOCK;
+ // XXX
+ return LIBHICNCTRL_FAILURE;
+ }
+ s->woff += rc;
+ return LIBHICNCTRL_SUCCESS;
+}
+
+int
+hc_sock_process(hc_sock_t * s, hc_data_t * data,
+ int (*parse)(const u8 * src, u8 * dst))
+{
+ int err = 0;
+
+ /* We must have received at least one byte */
+ size_t available = s->woff - s->roff;
+
+ while(available > 0) {
+
+ if (s->remaining == 0) {
+ hc_msg_t * msg = (hc_msg_t*)(s->buf + s->roff);
+
+ /* We expect a message header */
+ if (available < sizeof(hc_msg_header_t))
+ break;
+
+ /* Sanity checks (might instead raise warnings) */
+ // TODO: sync check ?
+ assert((msg->hdr.messageType == RESPONSE_LIGHT) ||
+ (msg->hdr.messageType == ACK_LIGHT) ||
+ (msg->hdr.messageType == NACK_LIGHT));
+ //assert(msg->hdr.commandID == data->command_id); // FIXME
+ assert(msg->hdr.seqNum == s->recv_seq++);
+
+ s->remaining = msg->hdr.length;
+ if (s->remaining == 0) {
+ /*
+ * The protocol expects all sequence number to be reset after
+ * each transaction. We reset before running the callback in
+ * case it triggers new exchanges.
+ */
+ s->send_seq = HICN_CTRL_SEND_SEQ_INIT;
+ s->recv_seq = HICN_CTRL_RECV_SEQ_INIT;
+
+ // TODO : check before even sending ?
+ /* Complete message without payload */
+ // TODO : is this correct ? no error code ?
+ hc_data_set_complete(data);
+ }
+
+ available -= sizeof(hc_msg_header_t);
+ s->roff += sizeof(hc_msg_header_t);
+ } else {
+ /* We expect the complete payload, or at least a chunk of it */
+ size_t num_chunks = available / data->in_element_size;
+ if (num_chunks == 0)
+ break;
+ if (num_chunks > s->remaining)
+ num_chunks = s->remaining;
+
+ if (!parse) {
+ hc_data_push_many(data, s->buf + s->roff, num_chunks);
+ } else {
+ int rc;
+ rc = hc_data_ensure_available(data, num_chunks);
+ if (rc < 0)
+ return LIBHICNCTRL_FAILURE;
+ for (int i = 0; i < num_chunks; i++) {
+ u8 * dst = hc_data_get_next(data);
+ if (!dst)
+ return LIBHICNCTRL_FAILURE;
+
+ rc = parse(s->buf + s->roff + i * data->in_element_size, dst);
+ if (rc < 0)
+ err = -1; /* FIXME we let the loop complete (?) */
+ data->size++;
+ }
+ }
+
+
+ s->remaining -= num_chunks;
+ if (s->remaining == 0) {
+ /*
+ * The protocol expects all sequence number to be reset after
+ * each transaction. We reset before running the callback in
+ * case it triggers new exchanges.
+ */
+ s->send_seq = HICN_CTRL_SEND_SEQ_INIT;
+ s->recv_seq = HICN_CTRL_RECV_SEQ_INIT;
+
+ hc_data_set_complete(data);
+ }
+
+ available -= num_chunks * data->in_element_size;
+ s->roff += num_chunks * data->in_element_size;
+ }
+ }
+
+ /* Make sure there is enough remaining space in the buffer */
+ if (RECV_BUFLEN - s->woff < AVG_BUFLEN) {
+ /*
+ * There should be no overlap provided a sufficiently large BUFLEN, but
+ * who knows.
+ */
+ memmove(s->buf, s->buf + s->roff, s->woff - s->roff);
+ s->woff -= s->roff;
+ s->roff = 0;
+ }
+
+ return err;
+}
+
+int
+hc_sock_reset(hc_sock_t * s)
+{
+ s->roff = s->woff = 0;
+ s->send_seq = HICN_CTRL_SEND_SEQ_INIT;
+ s->recv_seq = HICN_CTRL_RECV_SEQ_INIT;
+ s->remaining = 0;
+ return LIBHICNCTRL_SUCCESS;
+}
+
+/******************************************************************************
+ * Command-specific structures and functions
+ ******************************************************************************/
+
+typedef int (*HC_PARSE)(const u8 *, u8 *);
+
+typedef struct {
+ hc_action_t cmd;
+ command_id cmd_id;
+ size_t size_in;
+ size_t size_out;
+ HC_PARSE parse;
+} hc_command_params_t;
+
+int
+hc_execute_command(hc_sock_t * s, hc_msg_t * msg, size_t msg_len,
+ hc_command_params_t * params, hc_data_t ** pdata)
+{
+ /* Sanity check */
+ switch(params->cmd) {
+ case ACTION_CREATE:
+ assert(params->size_in != 0); /* payload repeated */
+ assert(params->size_out == 0);
+ assert(params->parse == NULL);
+ break;
+ case ACTION_DELETE:
+ assert(params->size_in != 0); /* payload repeated */
+ assert(params->size_out == 0);
+ assert(params->parse == NULL);
+ break;
+ case ACTION_LIST:
+ assert(params->size_in != 0);
+ assert(params->size_out != 0);
+ assert(params->parse != NULL);
+ break;
+ case ACTION_SET:
+ assert(params->size_in != 0);
+ assert(params->size_out == 0);
+ assert(params->parse == NULL);
+ break;
+ default:
+ return LIBHICNCTRL_FAILURE;
+ }
+
+ hc_sock_reset(s);
+
+ /* XXX data will at least store the result (complete) */
+ hc_data_t * data = hc_data_create(params->size_in, params->size_out);
+ if (!data)
+ goto ERR_DATA;
+
+ hc_sock_send(s, msg, msg_len);
+ while(!data->complete) {
+ if (hc_sock_recv(s, data) < 0)
+ break;
+ if (hc_sock_process(s, data, params->parse) < 0) {
+ goto ERR_PROCESS;
+ }
+ }
+
+ if (pdata)
+ *pdata = data;
+
+ return LIBHICNCTRL_SUCCESS;
+
+ERR_PROCESS:
+ free(data);
+ERR_DATA:
+ return LIBHICNCTRL_FAILURE;
+}
+
+/* /!\ Please update constants in header file upon changes */
+int
+hc_url_snprintf(char * s, size_t size, int family,
+ const ip_address_t * ip_address, u16 port)
+{
+ char * cur = s;
+ int rc;
+
+ /* Other address are currently not supported */
+ if (!IS_VALID_FAMILY(family)) {
+ ERROR("Invalid family %d for IP address", family);
+ return -1;
+ }
+
+ rc = snprintf(cur, s + size - cur, "inet%c://",
+ (family == AF_INET) ? '4' : '6');
+ if (rc < 0)
+ return rc;
+ cur += rc;
+ if (size != 0 && cur >= s + size)
+ return cur - s;
+
+ rc = ip_address_snprintf(cur, s + size - cur, ip_address, family);
+ if (rc < 0)
+ return rc;
+ cur += rc;
+ if (size != 0 && cur >= s + size)
+ return cur - s;
+
+ rc = snprintf(cur, s + size - cur, ":");
+ if (rc < 0)
+ return rc;
+ cur += rc;
+ if (size != 0 && cur >= s + size)
+ return cur - s;
+
+ rc = snprintf(cur, s + size - cur, "%d", port);
+ if (rc < 0)
+ return rc;
+ cur += rc;
+ if (size != 0 && cur >= s + size)
+ return cur - s;
+
+ return cur - s;
+}
+
+/*----------------------------------------------------------------------------*
+ * Listeners
+ *----------------------------------------------------------------------------*/
+
+/* LISTENER CREATE */
+
+int
+hc_listener_create(hc_sock_t * s, hc_listener_t * listener)
+{
+ if (!IS_VALID_FAMILY(listener->family))
+ return LIBHICNCTRL_FAILURE;
+
+ if (!IS_VALID_CONNECTION_TYPE(listener->type))
+ return LIBHICNCTRL_FAILURE;
+
+ struct {
+ header_control_message hdr;
+ add_listener_command payload;
+ } msg = {
+ .hdr = {
+ .messageType = REQUEST_LIGHT,
+ .commandID = ADD_LISTENER,
+ .length = 1,
+ .seqNum = s->send_seq,
+ },
+ .payload = {
+ .address = {
+ .ipv6 = listener->local_addr.v6.as_in6addr,
+ },
+ .port = htons(listener->local_port),
+ .addressType = (u8)map_to_addr_type[listener->family],
+ .listenerMode = (u8)map_to_listener_mode[listener->type],
+ .connectionType = (u8)map_to_connection_type[listener->type],
+ }
+ };
+
+ snprintf(msg.payload.symbolic, NAME_LEN, "%s", listener->name);
+#ifdef __linux__
+ snprintf(msg.payload.interfaceName, INTERFACE_LEN, "%s", listener->interface_name);
+#endif
+
+ hc_command_params_t params = {
+ .cmd = ACTION_CREATE,
+ .cmd_id = ADD_LISTENER,
+ .size_in = sizeof(add_listener_command),
+ .size_out = 0,
+ .parse = NULL,
+ };
+
+ return hc_execute_command(s, (hc_msg_t*)&msg, sizeof(msg), &params, NULL);
+}
+
+/* LISTENER GET */
+
+int
+hc_listener_get(hc_sock_t *s, hc_listener_t * listener,
+ hc_listener_t ** listener_found)
+{
+ hc_data_t * listeners;
+
+ if (hc_listener_list(s, &listeners) < 0)
+ return LIBHICNCTRL_FAILURE;
+
+ /* Test */
+ if (hc_listener_find(listeners, listener, listener_found) < 0)
+ return LIBHICNCTRL_FAILURE;
+
+ hc_data_free(listeners);
+
+ return LIBHICNCTRL_SUCCESS;
+}
+
+
+/* LISTENER DELETE */
+
+int
+hc_listener_delete(hc_sock_t * s, hc_listener_t * listener)
+{
+ struct {
+ header_control_message hdr;
+ remove_listener_command payload;
+ } msg = {
+ .hdr = {
+ .messageType = REQUEST_LIGHT,
+ .commandID = REMOVE_LISTENER,
+ .length = 1,
+ .seqNum = s->send_seq,
+ },
+ };
+
+ if (listener->id) {
+ printf("Delete by ID\n");
+ snprintf(msg.payload.symbolicOrListenerid, NAME_LEN, "%d", listener->id);
+ } else if (*listener->name) {
+ printf("Delete by name %s\n", listener->name);
+ snprintf(msg.payload.symbolicOrListenerid, NAME_LEN, "%s", listener->name);
+ } else {
+ printf("Delete after search\n");
+ hc_listener_t * listener_found;
+ if (hc_listener_get(s, listener, &listener_found) < 0)
+ return LIBHICNCTRL_FAILURE;
+ if (!listener_found)
+ return LIBHICNCTRL_FAILURE;
+ printf("Delete listener ID=%d\n", listener_found->id);
+ snprintf(msg.payload.symbolicOrListenerid, NAME_LEN, "%d", listener_found->id);
+ }
+
+ hc_command_params_t params = {
+ .cmd = ACTION_DELETE,
+ .cmd_id = REMOVE_LISTENER,
+ .size_in = sizeof(remove_listener_command),
+ .size_out = 0,
+ .parse = NULL,
+ };
+
+ return hc_execute_command(s, (hc_msg_t*)&msg, sizeof(msg), &params, NULL);
+}
+
+/* LISTENER LIST */
+
+int
+hc_listener_list(hc_sock_t * s, hc_data_t ** pdata)
+{
+ struct {
+ header_control_message hdr;
+ } msg = {
+ .hdr = {
+ .messageType = REQUEST_LIGHT,
+ .commandID = LIST_LISTENERS,
+ .length = 0,
+ .seqNum = s->send_seq,
+ },
+ };
+
+ hc_command_params_t params = {
+ .cmd = ACTION_LIST,
+ .cmd_id = LIST_LISTENERS,
+ .size_in = sizeof(list_listeners_command),
+ .size_out = sizeof(hc_listener_t),
+ .parse = (HC_PARSE)hc_listener_parse,
+ };
+
+ return hc_execute_command(s, (hc_msg_t*)&msg, sizeof(msg), &params, pdata);
+}
+
+/* LISTENER VALIDATE */
+
+int
+hc_listener_validate(const hc_listener_t * listener)
+{
+ if (!IS_VALID_FAMILY(listener->family))
+ return LIBHICNCTRL_FAILURE;
+
+ if (!IS_VALID_CONNECTION_TYPE(listener->type))
+ return LIBHICNCTRL_FAILURE;
+
+ return LIBHICNCTRL_SUCCESS;
+}
+
+/* LISTENER CMP */
+
+int
+hc_listener_cmp(const hc_listener_t * l1, const hc_listener_t * l2)
+{
+ return ((l1->type == l2->type) &&
+ (l1->family == l2->family) &&
+ (ip_address_cmp(&l1->local_addr, &l2->local_addr, l1->family) == 0) &&
+ (l1->local_port == l2->local_port))
+ ? LIBHICNCTRL_SUCCESS
+ : LIBHICNCTRL_FAILURE;
+}
+
+/* LISTENER PARSE */
+
+int
+hc_listener_parse(void * in, hc_listener_t * listener)
+{
+ list_listeners_command * cmd = (list_listeners_command *)in;
+
+ if (!IS_VALID_LIST_LISTENERS_TYPE(cmd->encapType))
+ return LIBHICNCTRL_FAILURE;
+
+ hc_connection_type_t type = map_from_encap_type[cmd->encapType];
+ if (type == CONNECTION_TYPE_UNDEFINED)
+ return LIBHICNCTRL_FAILURE;
+
+ if (!IS_VALID_ADDR_TYPE(cmd->addressType))
+ return LIBHICNCTRL_FAILURE;
+
+ int family = map_from_addr_type[cmd->addressType];
+ if (!IS_VALID_FAMILY(family))
+ return LIBHICNCTRL_FAILURE;
+
+ *listener = (hc_listener_t) {
+ .id = cmd->connid,
+ .type = type,
+ .family = family,
+ .local_addr = UNION_CAST(cmd->address, ip_address_t),
+ .local_port = ntohs(cmd->port),
+ };
+ memset(listener->name, 0, NAME_LEN);
+ return LIBHICNCTRL_SUCCESS;
+}
+
+GENERATE_FIND(listener)
+
+/* LISTENER SNPRINTF */
+
+/* /!\ Please update constants in header file upon changes */
+int
+hc_listener_snprintf(char * s, size_t size, hc_listener_t * listener)
+{
+ char local[MAXSZ_HC_URL];
+ int rc;
+ rc = hc_url_snprintf(local, MAXSZ_HC_URL,
+ listener->family, &listener->local_addr, listener->local_port);
+ if (rc < 0)
+ return rc;
+
+ return snprintf(s, size+17, "%s %s",
+ local,
+ connection_type_str[listener->type]);
+}
+
+/*----------------------------------------------------------------------------*
+ * CONNECTION
+ *----------------------------------------------------------------------------*/
+
+/* CONNECTION CREATE */
+
+int
+hc_connection_create(hc_sock_t * s, hc_connection_t * connection)
+{
+ if (hc_connection_validate(connection) < 0)
+ return LIBHICNCTRL_FAILURE;
+
+ struct {
+ header_control_message hdr;
+ add_connection_command payload;
+ } msg = {
+ .hdr = {
+ .messageType = REQUEST_LIGHT,
+ .commandID = ADD_CONNECTION,
+ .length = 1,
+ .seqNum = s->send_seq,
+ },
+ .payload = {
+ /* we use IPv6 which is the longest address */
+ .remoteIp.ipv6 = connection->remote_addr.v6.as_in6addr,
+ .localIp.ipv6 = connection->local_addr.v6.as_in6addr,
+ .remotePort = htons(connection->remote_port),
+ .localPort = htons(connection->local_port),
+ .ipType = (u8)map_to_addr_type[connection->family],
+ .admin_state = connection->admin_state,
+#ifdef WITH_POLICY
+ .tags = connection->tags,
+#endif /* WITH_POLICY */
+ .connectionType = (u8)map_to_connection_type[connection->type],
+ }
+ };
+ snprintf(msg.payload.symbolic, NAME_LEN, "%s", connection->name);
+
+ hc_command_params_t params = {
+ .cmd = ACTION_CREATE,
+ .cmd_id = ADD_CONNECTION,
+ .size_in = sizeof(add_connection_command),
+ .size_out = 0,
+ .parse = NULL,
+ };
+
+ return hc_execute_command(s, (hc_msg_t*)&msg, sizeof(msg), &params, NULL);
+}
+
+/* CONNECTION GET */
+
+int
+hc_connection_get(hc_sock_t *s, hc_connection_t * connection,
+ hc_connection_t ** connection_found)
+{
+ hc_data_t * connections;
+
+ if (hc_connection_list(s, &connections) < 0)
+ return LIBHICNCTRL_FAILURE;
+
+ /* Test */
+ if (hc_connection_find(connections, connection, connection_found) < 0)
+ return LIBHICNCTRL_FAILURE;
+
+ hc_data_free(connections);
+
+ return LIBHICNCTRL_SUCCESS;
+}
+
+
+/* CONNECTION DELETE */
+
+int
+hc_connection_delete(hc_sock_t * s, hc_connection_t * connection)
+{
+ struct {
+ header_control_message hdr;
+ remove_connection_command payload;
+ } msg = {
+ .hdr = {
+ .messageType = REQUEST_LIGHT,
+ .commandID = REMOVE_CONNECTION,
+ .length = 1,
+ .seqNum = s->send_seq,
+ },
+ };
+
+ if (connection->id) {
+ printf("Delete by ID\n");
+ snprintf(msg.payload.symbolicOrConnid, NAME_LEN, "%d", connection->id);
+ } else if (*connection->name) {
+ printf("Delete by name %s\n", connection->name);
+ snprintf(msg.payload.symbolicOrConnid, NAME_LEN, "%s", connection->name);
+ } else {
+ printf("Delete after search\n");
+ hc_connection_t * connection_found;
+ if (hc_connection_get(s, connection, &connection_found) < 0)
+ return LIBHICNCTRL_FAILURE;
+ if (!connection_found)
+ return LIBHICNCTRL_FAILURE;
+ printf("Delete connection ID=%d\n", connection_found->id);
+ snprintf(msg.payload.symbolicOrConnid, NAME_LEN, "%d", connection_found->id);
+ }
+
+ hc_command_params_t params = {
+ .cmd = ACTION_DELETE,
+ .cmd_id = REMOVE_CONNECTION,
+ .size_in = sizeof(remove_connection_command),
+ .size_out = 0,
+ .parse = NULL,
+ };
+
+ return hc_execute_command(s, (hc_msg_t*)&msg, sizeof(msg), &params, NULL);
+}
+
+
+/* CONNECTION LIST */
+
+int
+hc_connection_list(hc_sock_t * s, hc_data_t ** pdata)
+{
+ struct {
+ header_control_message hdr;
+ } msg = {
+ .hdr = {
+ .messageType = REQUEST_LIGHT,
+ .commandID = LIST_CONNECTIONS,
+ .length = 0,
+ .seqNum = s->send_seq,
+ },
+ };
+
+ hc_command_params_t params = {
+ .cmd = ACTION_LIST,
+ .cmd_id = LIST_CONNECTIONS,
+ .size_in = sizeof(list_connections_command),
+ .size_out = sizeof(hc_connection_t),
+ .parse = (HC_PARSE)hc_connection_parse,
+ };
+
+ return hc_execute_command(s, (hc_msg_t*)&msg, sizeof(msg), &params, pdata);
+}
+
+/* CONNECTION VALIDATE */
+
+int
+hc_connection_validate(const hc_connection_t * connection)
+{
+ if (!IS_VALID_FAMILY(connection->family))
+ return LIBHICNCTRL_FAILURE;
+
+ if (!IS_VALID_CONNECTION_TYPE(connection->type))
+ return LIBHICNCTRL_FAILURE;
+
+ /* TODO assert both local and remote have the right family */
+
+ return LIBHICNCTRL_SUCCESS;
+}
+
+/* CONNECTION CMP */
+
+/*
+ * hICN light uses ports even for hICN connections, but their value is ignored.
+ * As connections are specific to hicn-light, we can safely use IP and ports for
+ * comparison independently of the face type.
+ */
+int hc_connection_cmp(const hc_connection_t * c1, const hc_connection_t * c2)
+{
+ return ((c1->type == c2->type) &&
+ (c1->family == c2->family) &&
+ (ip_address_cmp(&c1->local_addr, &c2->local_addr, c1->family) == 0) &&
+ (c1->local_port == c2->local_port) &&
+ (ip_address_cmp(&c1->remote_addr, &c2->remote_addr, c1->family) == 0) &&
+ (c1->remote_port == c2->remote_port))
+ ? LIBHICNCTRL_SUCCESS
+ : LIBHICNCTRL_FAILURE;
+}
+
+/* CONNECTION PARSE */
+
+int
+hc_connection_parse(void * in, hc_connection_t * connection)
+{
+ list_connections_command * cmd = (list_connections_command *)in;
+
+ if (!IS_VALID_LIST_CONNECTIONS_TYPE(cmd->connectionData.connectionType))
+ return LIBHICNCTRL_FAILURE;
+
+ hc_connection_type_t type = map_from_list_connections_type[cmd->connectionData.connectionType];
+ if (type == CONNECTION_TYPE_UNDEFINED)
+ return LIBHICNCTRL_FAILURE;
+
+ if (!IS_VALID_LIST_CONNECTIONS_STATE(cmd->state))
+ return LIBHICNCTRL_FAILURE;
+
+ hc_connection_state_t state = map_from_list_connections_state[cmd->state];
+ if (state == HC_CONNECTION_STATE_UNDEFINED)
+ return LIBHICNCTRL_FAILURE;
+
+ if (!IS_VALID_ADDR_TYPE(cmd->connectionData.ipType))
+ return LIBHICNCTRL_FAILURE;
+
+ int family = map_from_addr_type[cmd->connectionData.ipType];
+ if (!IS_VALID_FAMILY(family))
+ return LIBHICNCTRL_FAILURE;
+
+ *connection = (hc_connection_t) {
+ .id = cmd->connid,
+ .type = type,
+ .family = family,
+ .local_addr = UNION_CAST(cmd->connectionData.localIp, ip_address_t),
+ .local_port = ntohs(cmd->connectionData.localPort),
+ .remote_addr = UNION_CAST(cmd->connectionData.remoteIp, ip_address_t),
+ .remote_port = ntohs(cmd->connectionData.remotePort),
+ .admin_state = cmd->connectionData.admin_state,
+#ifdef WITH_POLICY
+ .tags = cmd->connectionData.tags,
+#endif /* WITH_POLICY */
+ .state = state,
+ };
+ snprintf(connection->name, NAME_LEN, "%s", cmd->connectionData.symbolic);
+ return LIBHICNCTRL_SUCCESS;
+}
+
+GENERATE_FIND(connection)
+
+/* CONNECTION SNPRINTF */
+
+/* /!\ Please update constants in header file upon changes */
+int
+hc_connection_snprintf(char * s, size_t size, const hc_connection_t * connection)
+{
+ char local[MAXSZ_HC_URL];
+ char remote[MAXSZ_HC_URL];
+ int rc;
+
+ // assert(connection->connection_state)
+
+ rc = hc_url_snprintf(local, MAXSZ_HC_URL, connection->family,
+ &connection->local_addr, connection->local_port);
+ if (rc < 0)
+ return rc;
+ rc = hc_url_snprintf(remote, MAXSZ_HC_URL, connection->family,
+ &connection->remote_addr, connection->remote_port);
+ if (rc < 0)
+ return rc;
+
+ return snprintf(s, size, "%s %s %s %s",
+ connection_state_str[connection->state],
+ local,
+ remote,
+ connection_type_str[connection->type]);
+}
+
+/* CONNECTION SET ADMIN STATE */
+
+int
+hc_connection_set_admin_state(hc_sock_t * s, const char * conn_id_or_name,
+ hc_connection_state_t admin_state)
+{
+ struct {
+ header_control_message hdr;
+ connection_set_admin_state_command payload;
+ } msg = {
+ .hdr = {
+ .messageType = REQUEST_LIGHT,
+ .commandID = CONNECTION_SET_ADMIN_STATE,
+ .length = 1,
+ .seqNum = s->send_seq,
+ },
+ .payload = {
+ .admin_state = admin_state,
+ },
+ };
+ snprintf(msg.payload.symbolicOrConnid, NAME_LEN, "%s", conn_id_or_name);
+
+ hc_command_params_t params = {
+ .cmd = ACTION_SET,
+ .cmd_id = CONNECTION_SET_ADMIN_STATE,
+ .size_in = sizeof(connection_set_admin_state_command),
+ .size_out = 0,
+ .parse = NULL,
+ };
+
+ return hc_execute_command(s, (hc_msg_t*)&msg, sizeof(msg), &params, NULL);
+}
+
+/*----------------------------------------------------------------------------*
+ * Routes
+ *----------------------------------------------------------------------------*/
+
+/* ROUTE CREATE */
+
+int
+hc_route_create(hc_sock_t * s, hc_route_t * route)
+{
+ if (!IS_VALID_FAMILY(route->family))
+ return LIBHICNCTRL_FAILURE;
+
+ struct {
+ header_control_message hdr;
+ add_route_command payload;
+ } msg = {
+ .hdr = {
+ .messageType = REQUEST_LIGHT,
+ .commandID = ADD_ROUTE,
+ .length = 1,
+ .seqNum = s->send_seq,
+ },
+ .payload = {
+ /* we use IPv6 which is the longest address */
+ .address.ipv6 = route->remote_addr.v6.as_in6addr,
+ .cost = route->cost,
+ .addressType = (u8)map_to_addr_type[route->family],
+ .len = route->len,
+ }
+ };
+
+ /*
+ * The route commands expects the ID (or name that we don't use) as part of
+ * the symbolicOrConnid attribute.
+ */
+ snprintf(msg.payload.symbolicOrConnid, NAME_LEN, "%d", route->face_id);
+
+ hc_command_params_t params = {
+ .cmd = ACTION_CREATE,
+ .cmd_id = ADD_ROUTE,
+ .size_in = sizeof(add_route_command),
+ .size_out = 0,
+ .parse = NULL,
+ };
+
+ return hc_execute_command(s, (hc_msg_t*)&msg, sizeof(msg), &params, NULL);
+}
+
+/* ROUTE DELETE */
+
+int
+hc_route_delete(hc_sock_t * s, hc_route_t * route)
+{
+ if (!IS_VALID_FAMILY(route->family))
+ return LIBHICNCTRL_FAILURE;
+
+ struct {
+ header_control_message hdr;
+ remove_route_command payload;
+ } msg = {
+ .hdr = {
+ .messageType = REQUEST_LIGHT,
+ .commandID = REMOVE_ROUTE,
+ .length = 1,
+ .seqNum = s->send_seq,
+ },
+ .payload = {
+ /* we use IPv6 which is the longest address */
+ .address.ipv6 = route->remote_addr.v6.as_in6addr,
+ .addressType = (u8)map_to_addr_type[route->family],
+ .len = route->len,
+ }
+ };
+
+ hc_command_params_t params = {
+ .cmd = ACTION_DELETE,
+ .cmd_id = REMOVE_ROUTE,
+ .size_in = sizeof(remove_route_command),
+ .size_out = 0,
+ .parse = NULL,
+ };
+
+ return hc_execute_command(s, (hc_msg_t*)&msg, sizeof(msg), &params, NULL);
+}
+
+/* ROUTE LIST */
+
+int
+hc_route_list(hc_sock_t * s, hc_data_t ** pdata)
+{
+ struct {
+ header_control_message hdr;
+ } msg = {
+ .hdr = {
+ .messageType = REQUEST_LIGHT,
+ .commandID = LIST_ROUTES,
+ .length = 0,
+ .seqNum = s->send_seq,
+ },
+ };
+
+ hc_command_params_t params = {
+ .cmd = ACTION_LIST,
+ .cmd_id = LIST_ROUTES,
+ .size_in = sizeof(list_routes_command),
+ .size_out = sizeof(hc_route_t),
+ .parse = (HC_PARSE)hc_route_parse,
+ };
+
+ return hc_execute_command(s, (hc_msg_t*)&msg, sizeof(msg), &params, pdata);
+}
+
+/* ROUTE PARSE */
+
+int
+hc_route_parse(void * in, hc_route_t * route)
+{
+ list_routes_command * cmd = (list_routes_command *) in;
+
+ if (!IS_VALID_ADDR_TYPE(cmd->addressType))
+ return LIBHICNCTRL_FAILURE;
+
+ int family = map_from_addr_type[cmd->addressType];
+ if (!IS_VALID_FAMILY(family))
+ return LIBHICNCTRL_FAILURE;
+
+ *route = (hc_route_t) {
+ .face_id = cmd->connid,
+ .family = family,
+ .remote_addr = UNION_CAST(cmd->address, ip_address_t),
+ .len = cmd->len,
+ .cost = cmd->cost,
+ };
+ return LIBHICNCTRL_SUCCESS;
+}
+
+/* ROUTE SNPRINTF */
+
+/* /!\ Please update constants in header file upon changes */
+int
+hc_route_snprintf(char * s, size_t size, hc_route_t * route)
+{
+ /* interface cost prefix length */
+
+ char prefix[MAXSZ_IP_ADDRESS];
+ int rc;
+
+ rc = ip_address_snprintf(prefix, MAXSZ_IP_ADDRESS, &route->remote_addr,
+ route->family);
+ if (rc < 0)
+ return rc;
+
+ return snprintf(s, size, "%*d %*d %s %*d",
+ MAXSZ_FACE_ID,
+ route->face_id,
+ MAXSZ_COST,
+ route->cost,
+ prefix,
+ MAXSZ_LEN,
+ route->len);
+}
+
+/*----------------------------------------------------------------------------*
+ * Face
+ *
+ * Face support is not directly available in hicn-light, but we can offer such
+ * an interface through a combination of listeners and connections. The code
+ * starts with some conversion functions between faces/listeners/connections.
+ *
+ * We also need to make sure that there always exist a (single) listener when a
+ * connection is created, and in the hICN face case, that there is a single
+ * connection attached to this listener.
+ *
+ *----------------------------------------------------------------------------*/
+
+/* FACE -> LISTENER */
+
+int
+hc_face_to_listener(const hc_face_t * face, hc_listener_t * listener)
+{
+ const face_t * f = &face->face;
+
+ switch(f->type) {
+ case FACE_TYPE_HICN_LISTENER:
+ break;
+ case FACE_TYPE_TCP_LISTENER:
+ break;
+ case FACE_TYPE_UDP_LISTENER:
+ break;
+ default:
+ return LIBHICNCTRL_FAILURE;
+ }
+ return LIBHICNCTRL_FAILURE; /* XXX Not implemented */
+}
+
+/* LISTENER -> FACE */
+
+int
+hc_listener_to_face(const hc_listener_t * listener, hc_face_t * face)
+{
+ return LIBHICNCTRL_FAILURE; /* XXX Not implemented */
+}
+
+/* FACE -> CONNECTION */
+
+int
+hc_face_to_connection(const hc_face_t * face, hc_connection_t * connection, bool generate_name)
+{
+ const face_t * f = &face->face;
+
+ switch(f->type) {
+ case FACE_TYPE_HICN:
+ /* FIXME truncations, collisions, ... */
+ *connection = (hc_connection_t) {
+ .type = CONNECTION_TYPE_HICN,
+ .family = f->params.hicn.family,
+ .local_addr = f->params.hicn.local_addr,
+ .local_port = 0,
+ .remote_addr = f->params.hicn.remote_addr,
+ .remote_port = 0,
+ .admin_state = face_state_to_connection_state(f->admin_state),
+ .state = face_state_to_connection_state(f->state),
+#ifdef WITH_POLICY
+ .tags = f->tags,
+#endif /* WITH_POLICY */
+ };
+ snprintf(connection->name, NAME_LEN, "%s",
+ f->params.hicn.netdevice.name);
+ break;
+ case FACE_TYPE_TCP:
+ *connection = (hc_connection_t) {
+ .type = CONNECTION_TYPE_TCP,
+ .family = f->params.hicn.family,
+ .local_addr = f->params.tunnel.local_addr,
+ .local_port = f->params.tunnel.local_port,
+ .remote_addr = f->params.tunnel.remote_addr,
+ .remote_port = f->params.tunnel.remote_port,
+ .admin_state = face_state_to_connection_state(f->admin_state),
+ .state = face_state_to_connection_state(f->state),
+#ifdef WITH_POLICY
+ .tags = f->tags,
+#endif /* WITH_POLICY */
+ };
+ if (generate_name) {
+#ifdef __APPLE__
+ snprintf(connection->name, NAME_LEN, "tcp%d", arc4random() & 0xFF);
+#else
+ snprintf(connection->name, NAME_LEN, "tcp%ld", random() & 0xFF);
+#endif
+ } else {
+ memset(connection->name, 0, NAME_LEN);
+ }
+ break;
+ case FACE_TYPE_UDP:
+ *connection = (hc_connection_t) {
+ .type = CONNECTION_TYPE_UDP,
+ .family = AF_INET,
+ .local_addr = f->params.tunnel.local_addr,
+ .local_port = f->params.tunnel.local_port,
+ .remote_addr = f->params.tunnel.remote_addr,
+ .remote_port = f->params.tunnel.remote_port,
+ .admin_state = face_state_to_connection_state(f->admin_state),
+ .state = face_state_to_connection_state(f->state),
+#ifdef WITH_POLICY
+ .tags = f->tags,
+#endif /* WITH_POLICY */
+ };
+ if (generate_name) {
+#ifdef __APPLE__
+ snprintf(connection->name, NAME_LEN, "udp%d", arc4random() & 0xFF);
+#else
+ snprintf(connection->name, NAME_LEN, "udp%ld", random() & 0xFF);
+#endif
+ } else {
+ memset(connection->name, 0, NAME_LEN);
+ }
+ break;
+ default:
+ return LIBHICNCTRL_FAILURE;
+ }
+
+ return LIBHICNCTRL_SUCCESS;
+}
+
+/* CONNECTION -> FACE */
+
+int
+hc_connection_to_face(const hc_connection_t * connection, hc_face_t * face)
+{
+ switch (connection->type) {
+ case CONNECTION_TYPE_TCP:
+ *face = (hc_face_t) {
+ .id = connection->id,
+ .face = {
+ .type = FACE_TYPE_TCP,
+ .params.tunnel = {
+ .family = connection->family,
+ .local_addr = connection->local_addr,
+ .local_port = connection->local_port,
+ .remote_addr = connection->remote_addr,
+ .remote_port = connection->remote_port,
+ },
+ .admin_state = connection_state_to_face_state(connection->admin_state),
+ .state = connection_state_to_face_state(connection->state),
+#ifdef WITH_POLICY
+ .tags = connection->tags,
+#endif /* WITH_POLICY */
+ },
+ };
+ break;
+ case CONNECTION_TYPE_UDP:
+ *face = (hc_face_t) {
+ .id = connection->id,
+ .face = {
+ .type = FACE_TYPE_UDP,
+ .params.tunnel = {
+ .family = connection->family,
+ .local_addr = connection->local_addr,
+ .local_port = connection->local_port,
+ .remote_addr = connection->remote_addr,
+ .remote_port = connection->remote_port,
+ },
+ .admin_state = connection_state_to_face_state(connection->admin_state),
+ .state = connection_state_to_face_state(connection->state),
+#ifdef WITH_POLICY
+ .tags = connection->tags,
+#endif /* WITH_POLICY */
+ },
+ };
+ break;
+ case CONNECTION_TYPE_HICN:
+ *face = (hc_face_t) {
+ .id = connection->id,
+ .face = {
+ .type = FACE_TYPE_HICN,
+ .params.hicn = {
+ .family = connection->family,
+ .netdevice.index = NETDEVICE_UNDEFINED_INDEX, // XXX
+ .local_addr = connection->local_addr,
+ .remote_addr = connection->remote_addr,
+ },
+ .admin_state = connection_state_to_face_state(connection->admin_state),
+ .state = connection_state_to_face_state(connection->state),
+#ifdef WITH_POLICY
+ .tags = connection->tags,
+#endif /* WITH_POLICY */
+ },
+ };
+ break;
+ default:
+ return LIBHICNCTRL_FAILURE;
+ }
+ snprintf(face->name, NAME_LEN, "%s", connection->name);
+ return LIBHICNCTRL_SUCCESS;
+}
+
+/* CONNECTION -> LISTENER */
+
+int
+hc_connection_to_local_listener(const hc_connection_t * connection, hc_listener_t * listener)
+{
+ *listener = (hc_listener_t) {
+ .id = ~0,
+ .type = connection->type,
+ .family = connection->family,
+ .local_addr = connection->local_addr,
+ .local_port = connection->local_port,
+ };
+ return LIBHICNCTRL_SUCCESS;
+}
+
+/* FACE CREATE */
+
+int
+hc_face_create(hc_sock_t * s, hc_face_t * face)
+{
+ hc_listener_t listener;
+ hc_listener_t * listener_found;
+
+ hc_connection_t connection;
+ hc_connection_t * connection_found;
+
+ switch(face->face.type)
+ {
+ case FACE_TYPE_HICN:
+ case FACE_TYPE_TCP:
+ case FACE_TYPE_UDP:
+ if (hc_face_to_connection(face, &connection, true) < 0) {
+ ERROR("[hc_face_create] Could not convert face to connection.");
+ return LIBHICNCTRL_FAILURE;
+ }
+
+ /* Ensure we have a corresponding local listener */
+ if (hc_connection_to_local_listener(&connection, &listener) < 0) {
+ ERROR("[hc_face_create] Could not convert face to local listener.");
+ return LIBHICNCTRL_FAILURE;
+ }
+
+ if (hc_listener_get(s, &listener, &listener_found) < 0) {
+ ERROR("[hc_face_create] Could not retrieve listener");
+ return LIBHICNCTRL_FAILURE;
+ }
+
+ if (!listener_found) {
+ /* We need to create the listener if it does not exist */
+ if (hc_listener_create(s, &listener) < 0) {
+ ERROR("[hc_face_create] Could not create listener.");
+ return LIBHICNCTRL_FAILURE;
+ }
+ }
+
+ /* Create corresponding connection */
+ if (hc_connection_create(s, &connection) < 0) {
+ ERROR("[hc_face_create] Could not create connection.");
+ return LIBHICNCTRL_FAILURE;
+ }
+
+ /*
+ * Once the connection is created, we need to list all connections
+ * and compare with the current one to find the created face ID.
+ */
+ if (hc_connection_get(s, &connection, &connection_found) < 0) {
+ ERROR("[hc_face_create] Could not retrieve connection");
+ return LIBHICNCTRL_FAILURE;
+ }
+
+ if (!connection_found) {
+ ERROR("[hc_face_create] Could not find newly created connection.");
+ return LIBHICNCTRL_FAILURE;
+ }
+
+ face->id = connection_found->id;
+
+ break;
+
+ case FACE_TYPE_HICN_LISTENER:
+ case FACE_TYPE_TCP_LISTENER:
+ case FACE_TYPE_UDP_LISTENER:
+ if (hc_face_to_listener(face, &listener) < 0) {
+ ERROR("Could not convert face to listener.");
+ return LIBHICNCTRL_FAILURE;
+ }
+ if (hc_listener_create(s, &listener) < 0) {
+ ERROR("[hc_face_create] Could not create listener.");
+ return LIBHICNCTRL_FAILURE;
+ }
+ return LIBHICNCTRL_FAILURE;
+ break;
+ default:
+ ERROR("[hc_face_create] Unknwon face type.");
+ return LIBHICNCTRL_FAILURE;
+ };
+
+ return LIBHICNCTRL_SUCCESS;
+}
+
+int
+hc_face_get(hc_sock_t * s, hc_face_t * face, hc_face_t ** face_found)
+{
+ hc_listener_t listener;
+ hc_listener_t * listener_found;
+
+ hc_connection_t connection;
+ hc_connection_t * connection_found;
+
+ switch(face->face.type)
+ {
+ case FACE_TYPE_HICN:
+ case FACE_TYPE_TCP:
+ case FACE_TYPE_UDP:
+ if (hc_face_to_connection(face, &connection, false) < 0)
+ return LIBHICNCTRL_FAILURE;
+ if (hc_connection_get(s, &connection, &connection_found) < 0)
+ return LIBHICNCTRL_FAILURE;
+ if (!connection_found) {
+ *face_found = NULL;
+ return LIBHICNCTRL_SUCCESS;
+ }
+ hc_connection_to_face(connection_found, *face_found);
+ break;
+
+ case FACE_TYPE_HICN_LISTENER:
+ case FACE_TYPE_TCP_LISTENER:
+ case FACE_TYPE_UDP_LISTENER:
+ if (hc_face_to_listener(face, &listener) < 0)
+ return LIBHICNCTRL_FAILURE;
+ if (hc_listener_get(s, &listener, &listener_found) < 0)
+ return LIBHICNCTRL_FAILURE;
+ if (!listener_found) {
+ *face_found = NULL;
+ return LIBHICNCTRL_SUCCESS;
+ }
+ hc_listener_to_face(listener_found, *face_found);
+ break;
+
+ default:
+ return LIBHICNCTRL_FAILURE;
+ }
+
+ return LIBHICNCTRL_SUCCESS;
+
+}
+
+/* FACE DELETE */
+
+int
+hc_face_delete(hc_sock_t * s, hc_face_t * face)
+{
+ /* XXX We currently do not delete the listener */
+ hc_connection_t connection;
+ if (hc_face_to_connection(face, &connection, false) < 0) {
+ ERROR("[hc_face_delete] Could not convert face to connection.");
+ return LIBHICNCTRL_FAILURE;
+ }
+ return hc_connection_delete(s, &connection);
+}
+
+/* FACE LIST */
+
+int
+hc_face_list(hc_sock_t * s, hc_data_t ** pdata)
+{
+ hc_data_t * connection_data;
+ hc_face_t face;
+
+ if (hc_connection_list(s, &connection_data) < 0) {
+ ERROR("[hc_face_list] Could not list connections.");
+ return LIBHICNCTRL_FAILURE;
+ }
+
+ hc_data_t * face_data = hc_data_create(sizeof(hc_connection_t), sizeof(hc_face_t));
+ foreach_connection(c, connection_data) {
+ if (hc_connection_to_face(c, &face) < 0) {
+ ERROR("[hc_face_list] Could not convert connection to face.");
+ goto ERR;
+ }
+ hc_data_push(face_data, &face);
+ }
+
+ *pdata = face_data;
+ hc_data_free(connection_data);
+ return LIBHICNCTRL_SUCCESS;
+
+ERR:
+ hc_data_free(connection_data);
+ return LIBHICNCTRL_FAILURE;
+}
+
+/* /!\ Please update constants in header file upon changes */
+int
+hc_face_snprintf(char * s, size_t size, hc_face_t * face)
+{
+ return LIBHICNCTRL_SUCCESS;
+}
+
+int
+hc_face_set_admin_state(hc_sock_t * s, const char * conn_id_or_name, // XXX wrong identifier
+ face_state_t admin_state)
+{
+ return hc_connection_set_admin_state(s, conn_id_or_name, (hc_connection_state_t)admin_state);
+}
+
+/*----------------------------------------------------------------------------*
+ * Punting
+ *----------------------------------------------------------------------------*/
+
+int hc_punting_create(hc_sock_t * s, hc_punting_t * punting)
+{
+ if (hc_punting_validate(punting) < 0)
+ return LIBHICNCTRL_FAILURE;
+
+ struct {
+ header_control_message hdr;
+ add_punting_command payload;
+ } msg = {
+ .hdr = {
+ .messageType = REQUEST_LIGHT,
+ .commandID = ADD_PUNTING,
+ .length = 1,
+ .seqNum = s->send_seq,
+ },
+ .payload = {
+ /* we use IPv6 which is the longest address */
+ .address.ipv6 = punting->prefix.v6.as_in6addr,
+ .addressType = (u8)map_to_addr_type[punting->family],
+ .len = punting->prefix_len,
+ }
+ };
+ snprintf(msg.payload.symbolicOrConnid, NAME_LEN, "%d", punting->face_id);
+
+ hc_command_params_t params = {
+ .cmd = ACTION_CREATE,
+ .cmd_id = ADD_PUNTING,
+ .size_in = sizeof(add_punting_command),
+ .size_out = 0,
+ .parse = NULL,
+ };
+
+ return hc_execute_command(s, (hc_msg_t*)&msg, sizeof(msg), &params, NULL);
+}
+
+int hc_punting_get(hc_sock_t * s, hc_punting_t * punting, hc_punting_t ** punting_found)
+{
+ return LIBHICNCTRL_NOT_IMPLEMENTED;
+}
+
+int hc_punting_delete(hc_sock_t * s, hc_punting_t * punting)
+{
+ return LIBHICNCTRL_NOT_IMPLEMENTED;
+}
+
+int hc_punting_list(hc_sock_t * s, hc_data_t ** pdata)
+{
+ return LIBHICNCTRL_NOT_IMPLEMENTED;
+}
+
+int hc_punting_validate(const hc_punting_t * punting)
+{
+ if (!IS_VALID_FAMILY(punting->family))
+ return LIBHICNCTRL_FAILURE;
+
+ /*
+ * We might use the zero value to add punting on all faces but this is not
+ * (yet) implemented
+ */
+ if (punting->face_id == 0)
+ return LIBHICNCTRL_NOT_IMPLEMENTED;
+
+ return LIBHICNCTRL_SUCCESS;
+}
+
+int hc_punting_cmp(const hc_punting_t * p1, const hc_punting_t * p2)
+{
+ return ((p1->face_id == p2->face_id) &&
+ (p1->family == p2->family) &&
+ (ip_address_cmp(&p1->prefix, &p2->prefix, p1->family) == 0) &&
+ (p1->prefix_len == p2->prefix_len))
+ ? LIBHICNCTRL_SUCCESS
+ : LIBHICNCTRL_FAILURE;
+}
+
+int hc_punting_parse(void * in, hc_punting_t * punting)
+{
+ return LIBHICNCTRL_NOT_IMPLEMENTED;
+}
+
+int hc_punting_snprintf(char * s, size_t size, hc_punting_t * punting)
+{
+ return LIBHICNCTRL_NOT_IMPLEMENTED;
+}
+
+
+/*----------------------------------------------------------------------------*
+ * Cache
+ *----------------------------------------------------------------------------*/
+
+int
+hc_cache_set_store(hc_sock_t * s, int enabled)
+{
+ struct {
+ header_control_message hdr;
+ cache_store_command payload;
+ } msg = {
+ .hdr = {
+ .messageType = REQUEST_LIGHT,
+ .commandID = CACHE_STORE,
+ .length = 1,
+ .seqNum = s->send_seq,
+ },
+ .payload = {
+ .activate = enabled,
+ }
+ };
+
+ hc_command_params_t params = {
+ .cmd = ACTION_SET,
+ .cmd_id = CACHE_STORE,
+ .size_in = sizeof(cache_store_command),
+ .size_out = 0,
+ .parse = NULL,
+ };
+
+ return hc_execute_command(s, (hc_msg_t*)&msg, sizeof(msg), &params, NULL);
+}
+
+int
+hc_cache_set_serve(hc_sock_t * s, int enabled)
+{
+ struct {
+ header_control_message hdr;
+ cache_serve_command payload;
+ } msg = {
+ .hdr = {
+ .messageType = REQUEST_LIGHT,
+ .commandID = CACHE_SERVE,
+ .length = 1,
+ .seqNum = s->send_seq,
+ },
+ .payload = {
+ .activate = enabled,
+ }
+ };
+
+ hc_command_params_t params = {
+ .cmd = ACTION_SET,
+ .cmd_id = CACHE_SERVE,
+ .size_in = sizeof(cache_serve_command),
+ .size_out = 0,
+ .parse = NULL,
+ };
+
+ return hc_execute_command(s, (hc_msg_t*)&msg, sizeof(msg), &params, NULL);
+}
+
+
+/*----------------------------------------------------------------------------*
+ * Strategy
+ *----------------------------------------------------------------------------*/
+
+// per prefix
+int
+hc_strategy_set(hc_sock_t * s /* XXX */)
+{
+ return LIBHICNCTRL_SUCCESS;
+}
+
+/* How to retrieve that from the forwarder ? */
+static const char * strategies[] = {
+ "random",
+ "load_balancer",
+};
+
+#define ARRAY_SIZE(array) (sizeof(array) / sizeof(*array))
+
+int
+hc_strategy_list(hc_sock_t * s, hc_data_t ** data)
+{
+ *data = hc_data_create(0, sizeof(hc_strategy_t));
+
+ for (unsigned i = 0; i < ARRAY_SIZE(strategies); i++) {
+ hc_strategy_t * strategy = (hc_strategy_t*)hc_data_get_next(*data);
+ if (!strategy)
+ return LIBHICNCTRL_FAILURE;
+ snprintf(strategy->name, MAXSZ_HC_STRATEGY, "%s", strategies[i]);
+ (*data)->size++;
+ }
+
+ return LIBHICNCTRL_SUCCESS;
+}
+
+/* /!\ Please update constants in header file upon changes */
+int
+hc_strategy_snprintf(char * s, size_t size, hc_strategy_t * strategy)
+{
+ return snprintf(s, size, "%s", strategy->name);
+}
+
+/*----------------------------------------------------------------------------*
+ * WLDR
+ *----------------------------------------------------------------------------*/
+
+// per connection
+int
+hc_wldr_set(hc_sock_t * s /* XXX */)
+{
+ return LIBHICNCTRL_SUCCESS;
+}
+
+/*----------------------------------------------------------------------------*
+ * MAP-Me
+ *----------------------------------------------------------------------------*/
+
+int
+hc_mapme_set(hc_sock_t * s, int enabled)
+{
+ return LIBHICNCTRL_SUCCESS;
+}
+
+int
+hc_mapme_set_discovery(hc_sock_t * s, int enabled)
+{
+ return LIBHICNCTRL_SUCCESS;
+}
+
+int
+hc_mapme_set_timescale(hc_sock_t * s, double timescale)
+{
+ return LIBHICNCTRL_SUCCESS;
+}
+
+int
+hc_mapme_set_retx(hc_sock_t * s, double timescale)
+{
+ return LIBHICNCTRL_SUCCESS;
+}
+
+/*----------------------------------------------------------------------------*
+ * Policy
+ *----------------------------------------------------------------------------*/
+
+#ifdef WITH_POLICY
+
+/* POLICY CREATE */
+
+int
+hc_policy_create(hc_sock_t * s, hc_policy_t * policy)
+{
+ if (!IS_VALID_FAMILY(policy->family))
+ return LIBHICNCTRL_FAILURE;
+
+ struct {
+ header_control_message hdr;
+ add_policy_command payload;
+ } msg = {
+ .hdr = {
+ .messageType = REQUEST_LIGHT,
+ .commandID = ADD_POLICY,
+ .length = 1,
+ .seqNum = s->send_seq,
+ },
+ .payload = {
+ /* we use IPv6 which is the longest address */
+ .address.ipv6 = policy->remote_addr.v6.as_in6addr,
+ .addressType = (u8)map_to_addr_type[policy->family],
+ .len = policy->len,
+ .policy = policy->policy,
+ }
+ };
+
+ hc_command_params_t params = {
+ .cmd = ACTION_CREATE,
+ .cmd_id = ADD_POLICY,
+ .size_in = sizeof(add_policy_command),
+ .size_out = 0,
+ .parse = NULL,
+ };
+
+ return hc_execute_command(s, (hc_msg_t*)&msg, sizeof(msg), &params, NULL);
+}
+
+/* POLICY DELETE */
+
+int
+hc_policy_delete(hc_sock_t * s, hc_policy_t * policy)
+{
+ if (!IS_VALID_FAMILY(policy->family))
+ return LIBHICNCTRL_FAILURE;
+
+ struct {
+ header_control_message hdr;
+ remove_policy_command payload;
+ } msg = {
+ .hdr = {
+ .messageType = REQUEST_LIGHT,
+ .commandID = REMOVE_POLICY,
+ .length = 1,
+ .seqNum = s->send_seq,
+ },
+ .payload = {
+ /* we use IPv6 which is the longest address */
+ .address.ipv6 = policy->remote_addr.v6.as_in6addr,
+ .addressType = (u8)map_to_addr_type[policy->family],
+ .len = policy->len,
+ }
+ };
+
+ hc_command_params_t params = {
+ .cmd = ACTION_DELETE,
+ .cmd_id = REMOVE_POLICY,
+ .size_in = sizeof(remove_policy_command),
+ .size_out = 0,
+ .parse = NULL,
+ };
+
+ return hc_execute_command(s, (hc_msg_t*)&msg, sizeof(msg), &params, NULL);
+}
+
+/* POLICY LIST */
+
+int
+hc_policy_list(hc_sock_t * s, hc_data_t ** pdata)
+{
+ struct {
+ header_control_message hdr;
+ } msg = {
+ .hdr = {
+ .messageType = REQUEST_LIGHT,
+ .commandID = LIST_POLICIES,
+ .length = 0,
+ .seqNum = s->send_seq,
+ },
+ };
+
+ hc_command_params_t params = {
+ .cmd = ACTION_LIST,
+ .cmd_id = LIST_POLICIES,
+ .size_in = sizeof(list_policies_command),
+ .size_out = sizeof(hc_policy_t),
+ .parse = (HC_PARSE)hc_policy_parse,
+ };
+
+ return hc_execute_command(s, (hc_msg_t*)&msg, sizeof(msg), &params, pdata);
+}
+
+/* POLICY PARSE */
+
+int
+hc_policy_parse(void * in, hc_policy_t * policy)
+{
+ list_policies_command * cmd = (list_policies_command *) in;
+
+ if (!IS_VALID_ADDR_TYPE(cmd->addressType))
+ return LIBHICNCTRL_FAILURE;
+
+ int family = map_from_addr_type[cmd->addressType];
+ if (!IS_VALID_FAMILY(family))
+ return LIBHICNCTRL_FAILURE;
+
+ *policy = (hc_policy_t) {
+ .family = family,
+ .remote_addr = UNION_CAST(cmd->address, ip_address_t),
+ .len = cmd->len,
+ .policy = cmd->policy,
+ };
+ return LIBHICNCTRL_SUCCESS;
+}
+
+/* POLICY SNPRINTF */
+
+/* /!\ Please update constants in header file upon changes */
+int
+hc_policy_snprintf(char * s, size_t size, hc_policy_t * policy)
+{
+ return LIBHICNCTRL_SUCCESS;
+}
+
+#endif /* WITH_POLICY */
diff --git a/ctrl/libhicnctrl/src/cli.c b/ctrl/libhicnctrl/src/cli.c
new file mode 100644
index 000000000..70620a84f
--- /dev/null
+++ b/ctrl/libhicnctrl/src/cli.c
@@ -0,0 +1,381 @@
+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * \file cli.c
+ * \brief Command line interface
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h> // getopt
+
+#include <hicn/ctrl.h>
+
+#include "util/ip_address.h"
+#include "util/token.h"
+
+
+#define die(LABEL, MESSAGE) do { \
+ printf(MESSAGE "\n"); \
+ rc = -1; \
+ goto ERR_ ## LABEL; \
+} while(0)
+
+#define foreach_object \
+ _(UNDEFINED) \
+ _(LISTENER) \
+ _(CONNECTION) \
+ _(ROUTE) \
+ _(STRATEGY) \
+ _(N)
+
+typedef enum {
+#define _(x) OBJECT_ ## x,
+foreach_object
+#undef _
+} hc_object_t;
+
+void usage(const char * prog)
+{
+ fprintf(stderr, "Usage: %s [ [-d] [-l|-c|-r] PARAMETERS | [-L|-C|-R] ]\n", prog);
+ fprintf(stderr, "\n");
+ fprintf(stderr, "%s -l <NAME> <TYPE> <ADDRESS> <PORT> <INTERFACE_NAME>\n", prog);
+ fprintf(stderr, " Create a listener on specified address and port.\n");
+ fprintf(stderr, "%s -dl ...\n", prog);
+ fprintf(stderr, " Delete a listener...\n");
+ fprintf(stderr, "%s -L\n", prog);
+ fprintf(stderr, " List all listeners.\n");
+ fprintf(stderr, "%s -c <TYPE> <LOCAL_ADDRESS> <LOCAL_PORT> <REMOTE_ADDRESS> <REMOTE_PORT>\n", prog);
+ fprintf(stderr, " Create a connection on specified address and port.\n");
+ fprintf(stderr, "%s -dc ...\n", prog);
+ fprintf(stderr, " Delete a connection...\n");
+ fprintf(stderr, "%s -C\n", prog);
+ fprintf(stderr, " List all connections.\n");
+ fprintf(stderr, "%s -r ...>\n", prog);
+ fprintf(stderr, " Create a route...\n");
+ fprintf(stderr, "%s -dr ...\n", prog);
+ fprintf(stderr, " Delete a route...\n");
+ fprintf(stderr, "%s -R\n", prog);
+ fprintf(stderr, " List all routes.\n");
+ fprintf(stderr, "%s -S\n", prog);
+ fprintf(stderr, " List all availble forwarding strategies.\n");
+}
+
+typedef struct {
+ hc_action_t action;
+ hc_object_t object;
+ union {
+ hc_connection_t connection;
+ hc_listener_t listener;
+ hc_route_t route;
+ };
+} hc_command_t;
+
+int
+parse_options(int argc, char *argv[], hc_command_t * command)
+{
+ command->object = OBJECT_UNDEFINED;
+ command->action = ACTION_CREATE;
+ int nargs = 0; /* default for list */
+ int opt;
+ int family;
+
+ while ((opt = getopt(argc, argv, "dlcrLCRSh")) != -1) {
+ switch (opt) {
+ case 'd':
+ command->action = ACTION_DELETE;
+ break;
+ case 'l':
+ command->object = OBJECT_LISTENER;
+ nargs = 5;
+ break;
+ case 'c':
+ command->object = OBJECT_CONNECTION;
+ nargs = 6;
+ break;
+ case 'r':
+ command->object = OBJECT_ROUTE;
+ nargs = 0; // XXX
+ break;
+ case 'L':
+ command->action = ACTION_LIST;
+ command->object = OBJECT_LISTENER;
+ break;
+ case 'C':
+ command->action = ACTION_LIST;
+ command->object = OBJECT_CONNECTION;
+ break;
+ case 'R':
+ command->action = ACTION_LIST;
+ command->object = OBJECT_ROUTE;
+ break;
+ case 'S':
+ command->action = ACTION_LIST;
+ command->object = OBJECT_STRATEGY;
+ break;
+ default: /* "h" */
+ usage(argv[0]);
+ exit(EXIT_SUCCESS);
+ }
+ }
+
+ if (command->action == ACTION_DELETE)
+ nargs = 1;
+
+ /* Each option expects a different number of arguments */
+ if ((command->object == OBJECT_UNDEFINED) || (optind != argc - nargs)) {
+ //printf("Object requires %d arguments [optind=%d != args=%d - nargs=%d\n", nargs, optind, argc, nargs);
+ return -1;
+ }
+ if (nargs == 0)
+ return 0;
+
+ /* Parse and validate parameters for add/delete */
+ switch(command->object) {
+ case OBJECT_LISTENER:
+ switch(command->action) {
+ case ACTION_CREATE:
+ /* NAME TYPE LOCAL_ADDRESS LOCAL_PORT */
+ snprintf(command->listener.name, NAME_LEN, "%s", argv[optind++]);
+ // conn type
+ command->listener.type = connection_type_from_str(argv[optind++]);
+ if (command->listener.type == CONNECTION_TYPE_UNDEFINED)
+ goto ERR_PARAM;
+ command->listener.family = ip_address_get_family(argv[optind]);
+ if (!IS_VALID_FAMILY(command->listener.family))
+ goto ERR_PARAM;
+ if (ip_address_pton(argv[optind++], &command->listener.local_addr) < 0)
+ goto ERR_PARAM;
+ command->listener.local_port = atoi(argv[optind++]);
+#ifdef __linux__
+ snprintf(command->listener.interface_name, INTERFACE_LEN, "%s", argv[optind++]);
+#endif
+ break;
+ case ACTION_DELETE:
+ goto ERR_COMMAND;
+ break;
+ default:
+ goto ERR_COMMAND;
+ break;
+ }
+ break;
+ case OBJECT_CONNECTION:
+ switch(command->action) {
+ case ACTION_CREATE:
+ /* NAME TYPE LOCAL_ADDRESS LOCAL_PORT REMOTE_ADDRESS REMOTE_PORT */
+ snprintf(command->connection.name, NAME_LEN, "%s", argv[optind++]);
+ command->connection.type = connection_type_from_str(argv[optind++]);
+ if (command->connection.type == CONNECTION_TYPE_UNDEFINED)
+ goto ERR_PARAM;
+ command->connection.family = ip_address_get_family(argv[optind]);
+ if (!IS_VALID_FAMILY(command->connection.family))
+ goto ERR_PARAM;
+ if (ip_address_pton(argv[optind++], &command->connection.local_addr) < 0)
+ goto ERR_PARAM;
+ command->connection.local_port = atoi(argv[optind++]);
+ family = ip_address_get_family(argv[optind]);
+ if (!IS_VALID_FAMILY(family) || (command->connection.family != family))
+ goto ERR_PARAM;
+ if (ip_address_pton(argv[optind++], &command->connection.remote_addr) < 0)
+ goto ERR_PARAM;
+ command->connection.remote_port = atoi(argv[optind++]);
+
+ {
+ char buf_connection[MAXSZ_HC_CONNECTION];
+ if (hc_connection_snprintf(buf_connection, MAXSZ_HC_CONNECTION, &command->connection) >= MAXSZ_HC_CONNECTION)
+ printf("PARSED !!\n");
+ else
+ printf("PARSED %s\n", buf_connection);
+ }
+
+ break;
+ case ACTION_DELETE:
+ goto ERR_COMMAND;
+ break;
+ default:
+ goto ERR_COMMAND;
+ break;
+ }
+ break;
+ case OBJECT_ROUTE:
+ switch(command->action) {
+ case ACTION_CREATE:
+ goto ERR_COMMAND;
+ break;
+ case ACTION_DELETE:
+ goto ERR_COMMAND;
+ break;
+ default:
+ goto ERR_COMMAND;
+ break;
+ }
+ break;
+ case OBJECT_STRATEGY:
+ switch(command->action) {
+ case ACTION_LIST:
+ break;
+ default:
+ goto ERR_COMMAND;
+ break;
+ }
+ break;
+ default:
+ goto ERR_COMMAND;
+ break;
+ }
+
+ return 0;
+
+ERR_PARAM:
+ERR_COMMAND:
+ return -1;
+}
+
+int main(int argc, char *argv[])
+{
+ hc_data_t * data;
+ int rc = 1;
+ hc_command_t command;
+ char buf_listener[MAXSZ_HC_LISTENER];
+ char buf_connection[MAXSZ_HC_CONNECTION];
+ char buf_route[MAXSZ_HC_ROUTE];
+ char buf_strategy[MAXSZ_HC_STRATEGY];
+
+ if (parse_options(argc, argv, &command) < 0)
+ die(OPTIONS, "Bad arguments");
+
+ hc_sock_t * s = hc_sock_create();
+ if (!s)
+ die(SOCKET, "Error creating socket.");
+
+ if (hc_sock_connect(s) < 0)
+ die(CONNECT, "Error connecting to the forwarder.");
+
+ switch(command.object) {
+ case OBJECT_LISTENER:
+ switch(command.action) {
+ case ACTION_CREATE:
+ if (hc_listener_create(s, &command.listener) < 0)
+ die(COMMAND, "Error creating listener");
+ printf("OK\n");
+ break;
+ case ACTION_DELETE:
+ die(COMMAND, "Not implemented.");
+ break;
+ case ACTION_LIST:
+ if (hc_listener_list(s, &data) < 0)
+ die(COMMAND, "Error getting listeners.");
+
+ printf("Listeners:\n");
+ foreach_listener(l, data) {
+ if (hc_listener_snprintf(buf_listener, MAXSZ_HC_LISTENER+17, l) >= MAXSZ_HC_LISTENER)
+ die(COMMAND, "Display error");
+ printf("[%d] %s\n", l->id, buf_listener);
+ }
+
+ hc_data_free(data);
+ break;
+ default:
+ die(COMMAND, "Unsupported command for listener");
+ break;
+ }
+ break;
+ case OBJECT_CONNECTION:
+ switch(command.action) {
+ case ACTION_CREATE:
+ die(COMMAND, "Not implemented.");
+ break;
+ case ACTION_DELETE:
+ die(COMMAND, "Not implemented.");
+ break;
+ case ACTION_LIST:
+ if (hc_connection_list(s, &data) < 0)
+ die(COMMAND, "Error getting connections.");
+
+ printf("Connections:\n");
+ foreach_connection(c, data) {
+ if (hc_connection_snprintf(buf_connection, MAXSZ_HC_CONNECTION, c) >= MAXSZ_HC_CONNECTION)
+ die(COMMAND, "Display error");
+ printf("[%s] %s\n", c->name, buf_connection);
+ }
+
+ hc_data_free(data);
+ break;
+ default:
+ die(COMMAND, "Unsupported command for connection");
+ break;
+ }
+ break;
+ case OBJECT_ROUTE:
+ switch(command.action) {
+ case ACTION_CREATE:
+ die(COMMAND, "Not implemented.");
+ break;
+ case ACTION_DELETE:
+ die(COMMAND, "Not implemented.");
+ break;
+ case ACTION_LIST:
+ if (hc_route_list(s, &data) < 0)
+ die(COMMAND, "Error getting routes.");
+
+ printf("Routes:\n");
+ foreach_route(r, data) {
+ if (hc_route_snprintf(buf_route, MAXSZ_HC_ROUTE, r) >= MAXSZ_HC_ROUTE)
+ die(COMMAND, "Display error");
+ printf("%s\n", buf_route);
+ }
+
+ hc_data_free(data);
+ break;
+ default:
+ die(COMMAND, "Unsupported command for route");
+ break;
+ }
+ break;
+ case OBJECT_STRATEGY:
+ switch(command.action) {
+ case ACTION_LIST:
+ if (hc_strategy_list(s, &data) < 0)
+ die(COMMAND, "Error getting routes.");
+
+ printf("Forwarding strategies:\n");
+ foreach_strategy(st, data) {
+ if (hc_strategy_snprintf(buf_strategy, MAXSZ_HC_STRATEGY, st) >= MAXSZ_HC_STRATEGY)
+ die(COMMAND, "Display error");
+ printf("%s\n", buf_strategy);
+ }
+
+ hc_data_free(data);
+ break;
+ default:
+ die(COMMAND, "Unsupported command for strategy");
+ break;
+ }
+ break;
+ default:
+ die(COMMAND, "Unsupported object");
+ break;
+ }
+
+
+ /* ROUTES */
+
+ERR_COMMAND:
+ERR_CONNECT:
+ hc_sock_free(s);
+ERR_SOCKET:
+ERR_OPTIONS:
+ return (rc < 0) ? EXIT_FAILURE : EXIT_SUCCESS;
+}
diff --git a/ctrl/libhicnctrl/src/face.c b/ctrl/libhicnctrl/src/face.c
new file mode 100644
index 000000000..9e0fbb597
--- /dev/null
+++ b/ctrl/libhicnctrl/src/face.c
@@ -0,0 +1,245 @@
+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * \file face.c
+ * \brief Implementation of face abstraction
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "face.h"
+#include "util/hash.h"
+#include "util/token.h"
+
+#define member_size(type, member) sizeof(((type *)0)->member)
+
+
+/* Netdevice */
+
+const char * netdevice_type_str[] = {
+#define _(x) [NETDEVICE_TYPE_ ## x] = STRINGIZE(x),
+foreach_netdevice_type
+#undef _
+};
+
+
+/* Face state */
+
+const char * face_state_str[] = {
+#define _(x) [FACE_STATE_ ## x] = STRINGIZE(x),
+foreach_face_state
+#undef _
+};
+
+
+/* Face type */
+
+const char * face_type_str[] = {
+#define _(x) [FACE_TYPE_ ## x] = STRINGIZE(x),
+foreach_face_type
+#undef _
+};
+
+
+/* Face */
+
+int
+face_initialize(face_t * face)
+{
+ bzero(face, sizeof(face_t)); /* 0'ed for hash */
+ return 1;
+}
+
+int
+face_initialize_udp(face_t * face, const ip_address_t * local_addr,
+ u16 local_port, const ip_address_t * remote_addr, u16 remote_port,
+ int family)
+{
+ *face = (face_t) {
+ .type = FACE_TYPE_UDP,
+ .params.tunnel = {
+ .family = family,
+ .local_addr = *local_addr,
+ .local_port = local_port,
+ .remote_addr = *remote_addr,
+ .remote_port = remote_port,
+ },
+ };
+ return 1;
+}
+
+int
+face_initialize_udp_sa(face_t * face, const struct sockaddr * local_addr,
+ const struct sockaddr * remote_addr)
+{
+ if (local_addr->sa_family != remote_addr->sa_family)
+ return -1;
+
+ switch (local_addr->sa_family) {
+ case AF_INET:
+ {
+ struct sockaddr_in *lsai = (struct sockaddr_in *)local_addr;
+ struct sockaddr_in *rsai = (struct sockaddr_in *)remote_addr;
+ *face = (face_t) {
+ .type = FACE_TYPE_UDP,
+ .params.tunnel = {
+ .family = AF_INET,
+ .local_addr.v4.as_inaddr = lsai->sin_addr,
+ .local_port = ntohs(lsai->sin_port),
+ .remote_addr.v4.as_inaddr = rsai->sin_addr,
+ .remote_port = ntohs(rsai->sin_port),
+ },
+ };
+ }
+ break;
+ case AF_INET6:
+ {
+ struct sockaddr_in6 *lsai = (struct sockaddr_in6 *)local_addr;
+ struct sockaddr_in6 *rsai = (struct sockaddr_in6 *)remote_addr;
+ *face = (face_t) {
+ .type = FACE_TYPE_UDP,
+ .params.tunnel = {
+ .family = AF_INET6,
+ .local_addr.v6.as_in6addr = lsai->sin6_addr,
+ .local_port = ntohs(lsai->sin6_port),
+ .remote_addr.v6.as_in6addr = rsai->sin6_addr,
+ .remote_port = ntohs(rsai->sin6_port),
+ },
+ };
+ }
+ break;
+ default:
+ return -1;
+ }
+ return 1;
+}
+
+face_t * face_create()
+{
+ face_t * face = calloc(1, sizeof(face_t)); /* 0'ed for hash */
+ return face;
+}
+
+face_t * face_create_udp(const ip_address_t * local_addr, u16 local_port,
+ const ip_address_t * remote_addr, u16 remote_port, int family)
+{
+ face_t * face = face_create();
+ if (face_initialize_udp(face, local_addr, local_port, remote_addr, remote_port, family) < 0)
+ goto ERR_INIT;
+ return face;
+
+ERR_INIT:
+ free(face);
+ return NULL;
+}
+
+face_t * face_create_udp_sa(const struct sockaddr * local_addr,
+ const struct sockaddr * remote_addr)
+{
+ face_t * face = face_create();
+ if (face_initialize_udp_sa(face, local_addr, remote_addr) < 0)
+ goto ERR_INIT;
+ return face;
+
+ERR_INIT:
+ free(face);
+ return NULL;
+}
+
+void face_free(face_t * face)
+{
+ free(face);
+}
+
+#define face_param_cmp(f1, f2, face_param_type) \
+ memcmp(&f1->type, &f2->type, \
+ member_size(face_params_t, face_param_type));
+
+/**
+ * \brief Compare two faces
+ * \param [in] f1 - First face
+ * \param [in] f2 - Second face
+ * \return whether faces are equal, ie both their types are parameters are
+ * equal.
+ *
+ * NOTE: this function implements a partial order.
+ */
+int
+face_cmp(const face_t * f1, const face_t * f2)
+{
+ if (f1->type != f2->type)
+ return false;
+
+ switch(f1->type) {
+ case FACE_TYPE_HICN:
+ return face_param_cmp(f1, f2, hicn);
+ case FACE_TYPE_TCP:
+ case FACE_TYPE_UDP:
+ return face_param_cmp(f1, f2, tunnel);
+ default:
+ return false;
+ }
+}
+
+hash_t
+face_hash(const face_t * face)
+{
+ /* Assuming the unused part of the struct is set to zero */
+ return hash_struct(face);
+}
+
+/* /!\ Please update constants in header file upon changes */
+size_t
+face_snprintf(char * s, size_t size, const face_t * face)
+{
+ switch(face->type) {
+ case FACE_TYPE_HICN:
+ return 0; // XXX Not implemented
+ case FACE_TYPE_TCP:
+ case FACE_TYPE_UDP:
+ {
+ char local[MAXSZ_IP_ADDRESS];
+ char remote[MAXSZ_IP_ADDRESS];
+
+ ip_address_snprintf(local, MAXSZ_IP_ADDRESS,
+ &face->params.tunnel.local_addr,
+ face->params.tunnel.family);
+ ip_address_snprintf(remote, MAXSZ_IP_ADDRESS,
+ &face->params.tunnel.remote_addr,
+ face->params.tunnel.family);
+
+ return snprintf(s, size, "%s [%s:%d -> %s:%d]",
+ face_type_str[face->type],
+ local,
+ face->params.tunnel.local_port,
+ remote,
+ face->params.tunnel.remote_port);
+ }
+ break;
+ default:
+ return 0;
+ }
+
+}
+
+int
+face_set_tags(face_t * face, policy_tags_t tags)
+{
+ face->tags = tags;
+ return 1;
+}
diff --git a/ctrl/libhicnctrl/src/util/hash.h b/ctrl/libhicnctrl/src/util/hash.h
new file mode 100644
index 000000000..0bc48896b
--- /dev/null
+++ b/ctrl/libhicnctrl/src/util/hash.h
@@ -0,0 +1,246 @@
+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * \file hash.h
+ * \brief Simple non-cryptographic hash implementation.
+ *
+ * Two helpers are provided :
+ * hash(buf, len) : hash a buffer <buf> of length <len>
+ * hash_struct(buf) : hash a buffer corresponding to an allocated struct
+ *
+ * This file consists in excerpts from Jenkins hash (public domain).
+ * http://www.burtleburtle.net/bob/c/lookup3.c
+ */
+#ifndef UTIL_HASH_H
+#define UTIL_HASH_H
+
+#if (defined(__BYTE_ORDER) && defined(__LITTLE_ENDIAN) && \
+ __BYTE_ORDER == __LITTLE_ENDIAN) || \
+ (defined(i386) || defined(__i386__) || defined(__i486__) || \
+ defined(__i586__) || defined(__i686__) || defined(vax) || defined(MIPSEL))
+# define HASH_LITTLE_ENDIAN 1
+# define HASH_BIG_ENDIAN 0
+#elif (defined(__BYTE_ORDER) && defined(__BIG_ENDIAN) && \
+ __BYTE_ORDER == __BIG_ENDIAN) || \
+ (defined(sparc) || defined(POWERPC) || defined(mc68000) || defined(sel))
+# define HASH_LITTLE_ENDIAN 0
+# define HASH_BIG_ENDIAN 1
+#else
+# define HASH_LITTLE_ENDIAN 0
+# define HASH_BIG_ENDIAN 0
+#endif
+
+#define hashsize(n) ((uint32_t)1<<(n))
+#define hashmask(n) (hashsize(n)-1)
+#define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k))))
+
+#define mix(a,b,c) \
+{ \
+ a -= c; a ^= rot(c, 4); c += b; \
+ b -= a; b ^= rot(a, 6); a += c; \
+ c -= b; c ^= rot(b, 8); b += a; \
+ a -= c; a ^= rot(c,16); c += b; \
+ b -= a; b ^= rot(a,19); a += c; \
+ c -= b; c ^= rot(b, 4); b += a; \
+}
+
+#define final(a,b,c) \
+{ \
+ c ^= b; c -= rot(b,14); \
+ a ^= c; a -= rot(c,11); \
+ b ^= a; b -= rot(a,25); \
+ c ^= b; c -= rot(b,16); \
+ a ^= c; a -= rot(c,4); \
+ b ^= a; b -= rot(a,14); \
+ c ^= b; c -= rot(b,24); \
+}
+
+static inline
+uint32_t hashlittle( const void *key, size_t length, uint32_t initval)
+{
+ uint32_t a,b,c; /* internal state */
+ union { const void *ptr; size_t i; } u; /* needed for Mac Powerbook G4 */
+
+ /* Set up the internal state */
+ a = b = c = 0xdeadbeef + ((uint32_t)length) + initval;
+
+ u.ptr = key;
+ if (HASH_LITTLE_ENDIAN && ((u.i & 0x3) == 0)) {
+ const uint32_t *k = (const uint32_t *)key; /* read 32-bit chunks */
+
+ /*------ all but last block: aligned reads and affect 32 bits of (a,b,c) */
+ while (length > 12)
+ {
+ a += k[0];
+ b += k[1];
+ c += k[2];
+ mix(a,b,c);
+ length -= 12;
+ k += 3;
+ }
+
+ /*----------------------------- handle the last (probably partial) block */
+ /*
+ * "k[2]&0xffffff" actually reads beyond the end of the string, but
+ * then masks off the part it's not allowed to read. Because the
+ * string is aligned, the masked-off tail is in the same word as the
+ * rest of the string. Every machine with memory protection I've seen
+ * does it on word boundaries, so is OK with this. But VALGRIND will
+ * still catch it and complain. The masking trick does make the hash
+ * noticably faster for short strings (like English words).
+ */
+#ifndef VALGRIND
+
+ switch(length)
+ {
+ case 12: c+=k[2]; b+=k[1]; a+=k[0]; break;
+ case 11: c+=k[2]&0xffffff; b+=k[1]; a+=k[0]; break;
+ case 10: c+=k[2]&0xffff; b+=k[1]; a+=k[0]; break;
+ case 9 : c+=k[2]&0xff; b+=k[1]; a+=k[0]; break;
+ case 8 : b+=k[1]; a+=k[0]; break;
+ case 7 : b+=k[1]&0xffffff; a+=k[0]; break;
+ case 6 : b+=k[1]&0xffff; a+=k[0]; break;
+ case 5 : b+=k[1]&0xff; a+=k[0]; break;
+ case 4 : a+=k[0]; break;
+ case 3 : a+=k[0]&0xffffff; break;
+ case 2 : a+=k[0]&0xffff; break;
+ case 1 : a+=k[0]&0xff; break;
+ case 0 : return c; /* zero length strings require no mixing */
+ }
+
+#else /* make valgrind happy */
+
+ k8 = (const uint8_t *)k;
+ switch(length)
+ {
+ case 12: c+=k[2]; b+=k[1]; a+=k[0]; break;
+ case 11: c+=((uint32_t)k8[10])<<16; /* fall through */
+ case 10: c+=((uint32_t)k8[9])<<8; /* fall through */
+ case 9 : c+=k8[8]; /* fall through */
+ case 8 : b+=k[1]; a+=k[0]; break;
+ case 7 : b+=((uint32_t)k8[6])<<16; /* fall through */
+ case 6 : b+=((uint32_t)k8[5])<<8; /* fall through */
+ case 5 : b+=k8[4]; /* fall through */
+ case 4 : a+=k[0]; break;
+ case 3 : a+=((uint32_t)k8[2])<<16; /* fall through */
+ case 2 : a+=((uint32_t)k8[1])<<8; /* fall through */
+ case 1 : a+=k8[0]; break;
+ case 0 : return c;
+ }
+
+#endif /* !valgrind */
+
+ } else if (HASH_LITTLE_ENDIAN && ((u.i & 0x1) == 0)) {
+ const uint16_t *k = (const uint16_t *)key; /* read 16-bit chunks */
+ const uint8_t *k8;
+
+ /*--------------- all but last block: aligned reads and different mixing */
+ while (length > 12)
+ {
+ a += k[0] + (((uint32_t)k[1])<<16);
+ b += k[2] + (((uint32_t)k[3])<<16);
+ c += k[4] + (((uint32_t)k[5])<<16);
+ mix(a,b,c);
+ length -= 12;
+ k += 6;
+ }
+
+ /*----------------------------- handle the last (probably partial) block */
+ k8 = (const uint8_t *)k;
+ switch(length)
+ {
+ case 12: c+=k[4]+(((uint32_t)k[5])<<16);
+ b+=k[2]+(((uint32_t)k[3])<<16);
+ a+=k[0]+(((uint32_t)k[1])<<16);
+ break;
+ case 11: c+=((uint32_t)k8[10])<<16; /* fall through */
+ case 10: c+=k[4];
+ b+=k[2]+(((uint32_t)k[3])<<16);
+ a+=k[0]+(((uint32_t)k[1])<<16);
+ break;
+ case 9 : c+=k8[8]; /* fall through */
+ case 8 : b+=k[2]+(((uint32_t)k[3])<<16);
+ a+=k[0]+(((uint32_t)k[1])<<16);
+ break;
+ case 7 : b+=((uint32_t)k8[6])<<16; /* fall through */
+ case 6 : b+=k[2];
+ a+=k[0]+(((uint32_t)k[1])<<16);
+ break;
+ case 5 : b+=k8[4]; /* fall through */
+ case 4 : a+=k[0]+(((uint32_t)k[1])<<16);
+ break;
+ case 3 : a+=((uint32_t)k8[2])<<16; /* fall through */
+ case 2 : a+=k[0];
+ break;
+ case 1 : a+=k8[0];
+ break;
+ case 0 : return c; /* zero length requires no mixing */
+ }
+
+ } else { /* need to read the key one byte at a time */
+ const uint8_t *k = (const uint8_t *)key;
+
+ /*--------------- all but the last block: affect some 32 bits of (a,b,c) */
+ while (length > 12)
+ {
+ a += k[0];
+ a += ((uint32_t)k[1])<<8;
+ a += ((uint32_t)k[2])<<16;
+ a += ((uint32_t)k[3])<<24;
+ b += k[4];
+ b += ((uint32_t)k[5])<<8;
+ b += ((uint32_t)k[6])<<16;
+ b += ((uint32_t)k[7])<<24;
+ c += k[8];
+ c += ((uint32_t)k[9])<<8;
+ c += ((uint32_t)k[10])<<16;
+ c += ((uint32_t)k[11])<<24;
+ mix(a,b,c);
+ length -= 12;
+ k += 12;
+ }
+
+ /*-------------------------------- last block: affect all 32 bits of (c) */
+ switch(length) /* all the case statements fall through */
+ {
+ case 12: c+=((uint32_t)k[11])<<24;
+ case 11: c+=((uint32_t)k[10])<<16;
+ case 10: c+=((uint32_t)k[9])<<8;
+ case 9 : c+=k[8];
+ case 8 : b+=((uint32_t)k[7])<<24;
+ case 7 : b+=((uint32_t)k[6])<<16;
+ case 6 : b+=((uint32_t)k[5])<<8;
+ case 5 : b+=k[4];
+ case 4 : a+=((uint32_t)k[3])<<24;
+ case 3 : a+=((uint32_t)k[2])<<16;
+ case 2 : a+=((uint32_t)k[1])<<8;
+ case 1 : a+=k[0];
+ break;
+ case 0 : return c;
+ }
+ }
+
+ final(a,b,c);
+ return c;
+}
+
+/* Helpers */
+
+#define HASH_INITVAL 1
+#define hash(buf, len) (hash_t)hashlittle(buf, len, HASH_INITVAL)
+#define hash_struct(buf) hash(buf, sizeof(buf))
+
+#endif /* UTIL_JENKINS_HASH_H */
diff --git a/ctrl/libhicnctrl/src/util/ip_address.h b/ctrl/libhicnctrl/src/util/ip_address.h
new file mode 100644
index 000000000..472cceeea
--- /dev/null
+++ b/ctrl/libhicnctrl/src/util/ip_address.h
@@ -0,0 +1,316 @@
+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * \file ip_address.h
+ * \brief IP address type support
+ */
+#ifndef UTIL_IP_ADDRESS_H
+#define UTIL_IP_ADDRESS_H
+
+#include <arpa/inet.h> // inet_ntop
+#ifdef __APPLE__
+#include <libkern/OSByteOrder.h>
+#define __bswap_constant_32(x) OSSwapInt32(x)
+#include <machine/endian.h>
+#else
+#ifdef __ANDROID__
+#include <byteswap.h>
+#endif
+#include <endian.h>
+#endif
+#include <errno.h>
+#include <netdb.h> // struct addrinfo
+#include <netinet/in.h> // INET*_ADDRSTRLEN, IN*ADDR_LOOPBACK
+#include <stdlib.h>
+#include <string.h> // memset
+
+#include "types.h"
+
+
+#define bytes_to_bits(x) (x * 8)
+#define IPV6_ADDR_LEN 16 /* bytes */
+#define IPV4_ADDR_LEN 4 /* bytes */
+#define IPV6_ADDR_LEN_BITS bytes_to_bits(IPV6_ADDR_LEN)
+#define IPV4_ADDR_LEN_BITS bytes_to_bits(IPV4_ADDR_LEN)
+
+#define IP_MAX_ADDR_LEN IPV6_ADDR_LEN
+
+#define DUMMY_PORT 1234
+
+typedef union {
+ union {
+ struct in_addr as_inaddr;
+ u8 as_u8[4];
+ u16 as_u16[2];
+ u32 as_u32;
+ } v4;
+ union {
+ struct in6_addr as_in6addr;
+ u8 as_u8[16];
+ u16 as_u16[8];
+ u32 as_u32[4];
+ u64 as_u64[2];
+ } v6;
+ u8 buffer[IP_MAX_ADDR_LEN];
+ u8 as_u8[IP_MAX_ADDR_LEN];
+ u16 as_u16[IP_MAX_ADDR_LEN >> 1];
+ u32 as_u32[IP_MAX_ADDR_LEN >> 2];
+ u64 as_u64[IP_MAX_ADDR_LEN >> 3];
+} ip_address_t;
+
+#define MAXSZ_IP4_ADDRESS_ INET_ADDRSTRLEN - 1
+#define MAXSZ_IP6_ADDRESS_ INET6_ADDRSTRLEN - 1
+#define MAXSZ_IP_ADDRESS_ MAXSZ_IP6_ADDRESS_
+#define MAXSZ_IP4_ADDRESS MAXSZ_IP4_ADDRESS_ + 1
+#define MAXSZ_IP6_ADDRESS MAXSZ_IP6_ADDRESS_ + 1
+#define MAXSZ_IP_ADDRESS MAXSZ_IP_ADDRESS_ + 1
+
+
+typedef struct {
+ int family;
+ ip_address_t address;
+ u8 len;
+} ip_prefix_t;
+
+#define MAXSZ_PREFIX_ MAXSZ_IP_ADDRESS_ + 1 + 3
+#define MAXSZ_PREFIX MAXSZ_PREFIX_ + 1
+
+/* No htonl() with const */
+static const ip_address_t IPV4_LOOPBACK = {
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#ifdef __ANDROID__
+ .v4.as_inaddr.s_addr = bswap_32(INADDR_LOOPBACK),
+#else
+ .v4.as_inaddr.s_addr = __bswap_constant_32(INADDR_LOOPBACK),
+#endif
+#else
+ .v4.as_inaddr.s_addr = INADDR_LOOPBACK,
+#endif
+};
+
+static const ip_address_t IPV6_LOOPBACK = {
+ .v6.as_in6addr = IN6ADDR_LOOPBACK_INIT,
+};
+
+static const ip_address_t IPV4_ANY = {
+ .v4.as_inaddr.s_addr = INADDR_ANY,
+};
+
+static const ip_address_t IPV6_ANY = {
+ .v6.as_in6addr = IN6ADDR_ANY_INIT,
+};
+
+#define IP_ANY(family) (family == AF_INET) ? IPV4_ANY : IPV6_ANY
+
+#define MAX_PORT 1 << (8 * sizeof(u16))
+#define IS_VALID_PORT(x) ((x > 0) && (x < MAX_PORT))
+
+#define MAXSZ_PORT_ 5
+#define MAXSZ_PORT MAXSZ_PORT_ + 1
+
+#define IS_VALID_FAMILY(x) ((x == AF_INET) || (x == AF_INET6))
+
+static inline
+int
+ip_address_get_family (const char * ip_address)
+{
+ struct addrinfo hint, *res = NULL;
+ int rc;
+
+ memset (&hint, '\0', sizeof hint);
+
+ hint.ai_family = PF_UNSPEC;
+ hint.ai_flags = AI_NUMERICHOST;
+
+ rc = getaddrinfo (ip_address, NULL, &hint, &res);
+ if (rc)
+ {
+ return -1;
+ }
+ rc = res->ai_family;
+ freeaddrinfo (res);
+ return rc;
+}
+
+static inline
+int
+ip_address_len (const ip_address_t * ip_address, int family)
+{
+ return (family == AF_INET6) ? IPV6_ADDR_LEN :
+ (family == AF_INET) ? IPV4_ADDR_LEN : 0;
+}
+
+static inline
+int
+ip_address_ntop (const ip_address_t * ip_address, char *dst, const size_t len,
+ int family)
+{
+ const char * s = inet_ntop (family, ip_address->buffer, dst, len);
+ return (s ? 1 : -1);
+}
+
+/*
+ * Parse ip addresses in presentation format
+ */
+static inline
+int
+ip_address_pton (const char *ip_address_str, ip_address_t * ip_address)
+{
+ int pton_fd;
+ char *addr = strdup (ip_address_str);
+ int family;
+
+
+ family = ip_address_get_family (addr);
+
+ switch (family)
+ {
+ case AF_INET6:
+ pton_fd = inet_pton (AF_INET6, addr, &ip_address->buffer);
+ break;
+ case AF_INET:
+ pton_fd = inet_pton (AF_INET, addr, &ip_address->buffer);
+ break;
+ default:
+ goto ERR;
+ }
+
+ // 0 = not in presentation format
+ // < 0 = other error (use perror)
+ if (pton_fd <= 0)
+ {
+ goto ERR;
+ }
+
+ return 1;
+ERR:
+ free (addr);
+ return -1;
+}
+
+
+
+static inline
+int
+ip_address_snprintf(char * s, size_t size, const ip_address_t * ip_address, int family)
+{
+ size_t len = family == AF_INET ? INET_ADDRSTRLEN : INET6_ADDRSTRLEN;
+ const char * rc = inet_ntop (family, ip_address->buffer, s, len);
+ return rc ? strlen(rc) : -1;
+}
+
+
+static inline
+int
+ip_address_to_sockaddr(const ip_address_t * ip_address,
+ struct sockaddr *sockaddr_address, int family)
+{
+ struct sockaddr_in6 *tmp6 = (struct sockaddr_in6 *) sockaddr_address;
+ struct sockaddr_in *tmp4 = (struct sockaddr_in *) sockaddr_address;
+
+ switch (family)
+ {
+ case AF_INET6:
+ tmp6->sin6_family = AF_INET6;
+ tmp6->sin6_port = DUMMY_PORT;
+ tmp6->sin6_scope_id = 0;
+ memcpy (&tmp6->sin6_addr, ip_address->buffer, IPV6_ADDR_LEN);
+ break;
+ case AF_INET:
+ tmp4->sin_family = AF_INET;
+ tmp4->sin_port = DUMMY_PORT;
+ memcpy (&tmp4->sin_addr, ip_address->buffer, IPV4_ADDR_LEN);
+ break;
+ default:
+ return -1;
+ }
+
+ return 1;
+}
+
+static inline
+int
+ip_address_cmp(const ip_address_t * ip1, const ip_address_t * ip2, int family)
+{
+ return memcmp(ip1, ip2, ip_address_len(ip1, family));
+}
+
+/* Parse IP Prefixes in presentation format (in bits, separated by a slash) */
+static inline
+int
+ip_prefix_pton (const char *ip_address_str, ip_prefix_t * ip_prefix)
+{
+ int pton_fd;
+ char *p;
+ char *eptr;
+ char *addr = strdup (ip_address_str);
+
+ p = strchr (addr, '/');
+ if (!p)
+ {
+ ip_prefix->len = 0; // until we get the ip address family
+ }
+ else
+ {
+ ip_prefix->len = strtoul (p + 1, &eptr, 10);
+ *p = 0;
+ }
+
+ ip_prefix->family = ip_address_get_family (addr);
+
+ switch (ip_prefix->family)
+ {
+ case AF_INET6:
+ if (ip_prefix->len > IPV6_ADDR_LEN_BITS)
+ goto ERR;
+ pton_fd = inet_pton (AF_INET6, addr, &ip_prefix->address.buffer);
+ break;
+ case AF_INET:
+ if (ip_prefix->len > IPV4_ADDR_LEN_BITS)
+ goto ERR;
+ pton_fd = inet_pton (AF_INET, addr, &ip_prefix->address.buffer);
+ break;
+ default:
+ goto ERR;
+ }
+
+ // 0 = not in presentation format
+ // < 0 = other error (use perror)
+ if (pton_fd <= 0)
+ {
+ goto ERR;
+ }
+
+ return 1;
+ERR:
+ free (addr);
+ return -1;
+}
+
+static inline
+int
+ip_prefix_ntop (const ip_prefix_t * ip_prefix, char *dst, size_t size)
+{
+ char ip_s[MAXSZ_IP_ADDRESS];
+ const char * s = inet_ntop (ip_prefix->family, ip_prefix->address.buffer, ip_s, MAXSZ_IP_ADDRESS);
+ if (!s)
+ return -1;
+ size_t n = snprintf(dst, size, "%s/%d", ip_s, ip_prefix->len);
+
+ return (n > 0 ? 1 : -1);
+}
+
+#endif /* UTIL_IP_ADDRESS_H */
diff --git a/ctrl/libhicnctrl/src/util/log.c b/ctrl/libhicnctrl/src/util/log.c
new file mode 100644
index 000000000..54943cf45
--- /dev/null
+++ b/ctrl/libhicnctrl/src/util/log.c
@@ -0,0 +1,126 @@
+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "log.h"
+
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+log_conf_t log_conf = DEFAULT_LOG_CONF;
+
+#define FMT_DATETIME "%02d-%02d-%04d %02d:%02d:%02d"
+#define FMT_DATETIME_LEN 20
+#define snprintf_nowarn(...) (snprintf(__VA_ARGS__) < 0 ? abort() : (void)0)
+
+
+static char ts[FMT_DATETIME_LEN];
+
+static char *timestamp(void)
+{
+ time_t tv;
+ struct tm *tm;
+
+ time(&tv);
+ tm = localtime(&tv);
+
+ snprintf_nowarn(ts, FMT_DATETIME_LEN, FMT_DATETIME, tm->tm_mday,
+ tm->tm_mon + 1, tm->tm_year + 1900, tm->tm_hour, tm->tm_min,
+ tm->tm_sec);
+ return ts;
+}
+
+void _log_va(int level, const char *fmt, va_list ap)
+{
+ char *prefix;
+ FILE *f = log_conf.log_file ? log_conf.log_file : stdout;
+
+#if 0
+ if (!conf.log_system)
+ return;
+#endif
+
+ if (level > log_conf.log_level)
+ return;
+
+ switch (level) {
+ case LOG_FATAL:
+ prefix = "FATAL: ";
+ break;
+ case LOG_ERROR:
+ prefix = "ERROR: ";
+ break;
+ case LOG_WARN:
+ prefix = "WARNING: ";
+ break;
+ case LOG_INFO:
+ prefix = "";
+ break;
+ case LOG_DEBUG:
+ prefix = "DEBUG: ";
+ break;
+ case LOG_TRACE:
+ prefix = "TRACE: ";
+ break;
+ default:
+ prefix = "";
+ break;
+ }
+
+ fprintf(f, "%s %s", timestamp(), prefix);
+ vfprintf(f, fmt, ap);
+ fprintf(f, "\n");
+#ifdef DEBUG
+ fflush(f);
+#endif
+}
+
+void _log(int level, const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ _log_va(level, fmt, ap);
+ va_end(ap);
+}
+
+#ifdef HAVE_BACKTRACE
+#include <execinfo.h>
+
+void print_trace(void)
+{
+ void *array[32];
+ size_t size;
+
+ size = backtrace(array, 32);
+ fflush(conf.log_file);
+ backtrace_symbols_fd(array, size, fileno(conf.log_file));
+}
+#endif
+
+void fatal(char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ _log_va(LOG_FATAL, fmt, ap);
+ va_end(ap);
+
+#ifdef HAVE_BACKTRACE
+ print_trace();
+#endif
+
+ exit(200);
+}
diff --git a/ctrl/libhicnctrl/src/util/log.h b/ctrl/libhicnctrl/src/util/log.h
new file mode 100644
index 000000000..f1cafba47
--- /dev/null
+++ b/ctrl/libhicnctrl/src/util/log.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef UTIL_LOG_H
+#define UTIL_LOG_H
+
+#include <stdarg.h> // va_*
+#include <stdio.h> // FILE
+#include <time.h> // time, localtime
+
+#define LOG_FATAL 0
+#define LOG_ERROR 1
+#define LOG_WARN 2
+#define LOG_INFO 3
+#define LOG_DEBUG 4
+#define LOG_TRACE 5
+
+typedef struct {
+ int log_level;
+ int debug;
+ FILE * log_file;
+} log_conf_t;
+
+#define DEFAULT_LOG_CONF { \
+ .log_level = LOG_DEBUG, \
+ .debug = 0, \
+ .log_file = NULL, \
+};
+
+extern log_conf_t log_conf;
+
+#define WITH_DEBUG(BLOCK) \
+ if (log_conf.log_level >= LOG_DEBUG) \
+ BLOCK
+
+#define FATAL(fmt, ...) (_log(LOG_FATAL, fmt, ##__VA_ARGS__ ))
+#define ERROR(fmt, ...) (_log(LOG_ERROR, fmt, ##__VA_ARGS__ ))
+#define WARN(fmt, ...) (_log(LOG_WARN, fmt, ##__VA_ARGS__ ))
+#define INFO(fmt, ...) (_log(LOG_INFO, fmt, ##__VA_ARGS__ ))
+#define DEBUG(fmt, ...) (_log(LOG_DEBUG, fmt, ##__VA_ARGS__ ))
+#define TRACE(fmt, ...) (_log(LOG_TRACE, fmt, ##__VA_ARGS__ ))
+
+void _log_va(int level, const char *fmt, va_list ap);
+
+void _log(int level, const char *fmt, ...);
+
+void fatal(char *fmt, ...);
+
+#ifdef HAVE_BACKTRACE
+#include <execinfo.h>
+void print_trace(void);
+#endif
+
+#endif // UTIL_LOG_H
diff --git a/ctrl/libhicnctrl/src/util/policy.c b/ctrl/libhicnctrl/src/util/policy.c
new file mode 100644
index 000000000..90dbc72cd
--- /dev/null
+++ b/ctrl/libhicnctrl/src/util/policy.c
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * \file policy.h
+ * \brief Implementation of policy description
+ */
+
+#include <stdio.h>
+#include "policy.h"
+
+const char * policy_tag_str[] = {
+ #define _(x) [POLICY_TAG_ ## x] = STRINGIZE(x),
+ foreach_policy_tag
+ #undef _
+};
+
+const char * policy_state_str[] = {
+ #define _(x) [POLICY_STATE_ ## x] = STRINGIZE(x),
+ foreach_policy_state
+ #undef _
+};
+
+int
+policy_tag_state_snprintf(char * s, size_t size, const policy_tag_state_t * tag_state)
+{
+ char *cur = s;
+ int rc;
+
+ if (tag_state->disabled > 1)
+ return -1;
+
+ rc = snprintf(cur, s + size - cur, "%s%s", (tag_state->disabled == 1) ? "!" : "", policy_state_str[tag_state->state]);
+ if (rc < 0)
+ return rc;
+ cur += rc;
+ if (size != 0 && cur >= s + size)
+ return cur - s;
+
+ return cur - s;
+}
diff --git a/ctrl/libhicnctrl/src/util/policy.h b/ctrl/libhicnctrl/src/util/policy.h
new file mode 100644
index 000000000..231e53f73
--- /dev/null
+++ b/ctrl/libhicnctrl/src/util/policy.h
@@ -0,0 +1,266 @@
+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * \file policy.h
+ * \brief Policy description
+ */
+#ifndef HICN_POLICY_H
+#define HICN_POLICY_H
+
+#include <netinet/in.h> // INET*_ADDRSTRLEN
+#include "token.h"
+
+/* POLICY TAG */
+
+#define foreach_policy_tag \
+ /* Interface type */ \
+ _(WIRED) \
+ _(WIFI) \
+ _(CELLULAR) \
+ /* QoS */ \
+ _(BEST_EFFORT) \
+ _(REALTIME) \
+ _(MULTIPATH) \
+ /* Security */ \
+ _(TRUSTED)
+
+typedef enum {
+#define _(x) POLICY_TAG_ ## x,
+foreach_policy_tag
+#undef _
+ POLICY_TAG_N
+} policy_tag_t;
+
+#define MAXSZ_POLICY_TAG_ 11
+#define MAXSZ_POLICY_TAG MAXSZ_POLICY_TAG_ + 1
+
+extern const char * policy_tag_str[];
+
+
+/* POLICY_TAGS */
+
+typedef int policy_tags_t;
+
+static inline
+void policy_tags_add(policy_tags_t * tags, policy_tag_t tag)
+{
+ *tags |= (1 << tag);
+}
+
+static inline
+void policy_tags_remove(policy_tags_t * tags, policy_tag_t tag)
+{
+ *tags &= ~(1 << tag);
+}
+
+static inline
+int policy_tags_has(policy_tags_t tags, policy_tag_t tag)
+{
+ return tags & (1 << tag);
+}
+
+#define POLICY_TAGS_EMPTY 0
+
+
+/* POLICY STATE */
+
+/* TODO vs. weight */
+
+#define foreach_policy_state \
+ _(NEUTRAL) \
+ _(REQUIRE) \
+ _(PREFER) \
+ _(AVOID) \
+ _(PROHIBIT) \
+ _(N)
+
+typedef enum {
+#define _(x) POLICY_STATE_ ## x,
+foreach_policy_state
+#undef _
+} policy_state_t;
+
+#define MAXSZ_POLICY_STATE_ 8
+#define MAXSZ_POLICY_STATE MAXSZ_POLICY_STATE_ + 1
+
+extern const char * policy_state_str[];
+
+
+/* POLICY TAG STATE */
+
+typedef struct {
+ policy_state_t state;
+ uint8_t disabled;
+} policy_tag_state_t;
+
+#define MAXSZ_POLICY_TAG_STATE_ 8
+#define MAXSZ_POLICY_TAG_STATE MAXSZ_POLICY_TAG_STATE_ + 1
+
+int policy_tag_state_snprintf(char * s, size_t size, const policy_tag_state_t * tag_state);
+
+
+/* INTERFACE STATS */
+
+typedef struct {
+ float throughput;
+ float latency;
+ float loss_rate;
+} interface_stats_t;
+
+#define INTERFACE_STATS_NONE { \
+ .throughput = 0, \
+ .latency = 0, \
+ .loss_rate = 0, \
+}
+
+
+/* POLICY STATS */
+
+typedef struct {
+ interface_stats_t wired;
+ interface_stats_t wifi;
+ interface_stats_t cellular;
+ interface_stats_t all;
+} policy_stats_t;
+
+#define POLICY_STATS_NONE { \
+ .wired = INTERFACE_STATS_NONE, \
+ .wifi = INTERFACE_STATS_NONE, \
+ .cellular = INTERFACE_STATS_NONE, \
+ .all = INTERFACE_STATS_NONE, \
+}
+
+typedef struct {
+ uint32_t num_packets;
+ uint32_t num_bytes;
+ uint32_t num_losses;
+ uint32_t latency_idle;
+} interface_counters_t;
+
+#define INTERFACE_COUNTERS_NONE { \
+ .num_packets = 0, \
+ .num_bytes = 0, \
+ .num_losses = 0, \
+ .latency_idle = 0, \
+}
+
+typedef struct {
+ interface_counters_t wired;
+ interface_counters_t wifi;
+ interface_counters_t cellular;
+ interface_counters_t all;
+ uint64_t last_update;
+} policy_counters_t;
+
+#define POLICY_COUNTERS_NONE (policy_counters_t) { \
+ .wired = INTERFACE_COUNTERS_NONE, \
+ .wifi = INTERFACE_COUNTERS_NONE, \
+ .cellular = INTERFACE_COUNTERS_NONE, \
+ .all = INTERFACE_COUNTERS_NONE, \
+ .last_update = 0, \
+}
+
+/* POLICY */
+
+#define APP_NAME_LEN 128
+
+typedef struct {
+ char app_name[APP_NAME_LEN];
+ policy_tag_state_t tags[POLICY_TAG_N];
+ policy_stats_t stats;
+} policy_t;
+
+static const policy_t POLICY_NONE = {
+ .app_name = { 0 },
+ .tags = {
+#define _(x) [POLICY_TAG_ ## x] = { POLICY_STATE_NEUTRAL, 0 },
+foreach_policy_tag
+#undef _
+ },
+ .stats = POLICY_STATS_NONE,
+};
+
+
+/* POLICY DESCRIPTION */
+
+#define PFX_STRLEN 4 /* eg. /128 */
+
+typedef struct {
+ int family;
+ union {
+ char ipv4_prefix[INET_ADDRSTRLEN + PFX_STRLEN];
+ char ipv6_prefix[INET6_ADDRSTRLEN + PFX_STRLEN];
+ };
+ policy_t policy;
+} policy_description_t;
+
+/* DEFAULT POLICY */
+
+static const policy_description_t default_policy[] = {
+ {
+ .family = AF_INET6,
+ .ipv6_prefix = "a001::/16",
+ .policy = {
+ .app_name = "Webex",
+ .tags = {
+ [POLICY_TAG_WIRED] = { POLICY_STATE_PREFER, 0 },
+ [POLICY_TAG_WIFI] = { POLICY_STATE_NEUTRAL, 0 },
+ [POLICY_TAG_CELLULAR] = { POLICY_STATE_AVOID, 1 },
+ [POLICY_TAG_BEST_EFFORT] = { POLICY_STATE_PROHIBIT, 0 },
+ [POLICY_TAG_REALTIME] = { POLICY_STATE_REQUIRE, 1 },
+ [POLICY_TAG_MULTIPATH] = { POLICY_STATE_AVOID, 0 },
+ [POLICY_TAG_TRUSTED] = { POLICY_STATE_REQUIRE, 1 },
+ },
+ .stats = POLICY_STATS_NONE,
+ },
+ },
+ {
+ .family = AF_INET6,
+ .ipv6_prefix = "b001::/16",
+ .policy = {
+ .app_name = "Video Streaming",
+ .tags = {
+ [POLICY_TAG_WIRED] = { POLICY_STATE_PREFER, 0 },
+ [POLICY_TAG_WIFI] = { POLICY_STATE_NEUTRAL, 0 },
+ [POLICY_TAG_CELLULAR] = { POLICY_STATE_NEUTRAL, 0 },
+ [POLICY_TAG_BEST_EFFORT] = { POLICY_STATE_PROHIBIT, 0 },
+ [POLICY_TAG_REALTIME] = { POLICY_STATE_REQUIRE, 0 },
+ [POLICY_TAG_MULTIPATH] = { POLICY_STATE_AVOID, 0 },
+ [POLICY_TAG_TRUSTED] = { POLICY_STATE_PREFER, 0 },
+ },
+ .stats = POLICY_STATS_NONE,
+ },
+ },
+ {
+ .family = AF_INET6,
+ .ipv6_prefix = "c001::/16",
+ .policy = {
+ .app_name = "*",
+ .tags = {
+ [POLICY_TAG_WIRED] = { POLICY_STATE_PREFER, 0 },
+ [POLICY_TAG_WIFI] = { POLICY_STATE_NEUTRAL, 0 },
+ [POLICY_TAG_CELLULAR] = { POLICY_STATE_NEUTRAL, 0 },
+ [POLICY_TAG_BEST_EFFORT] = { POLICY_STATE_PROHIBIT, 0 },
+ [POLICY_TAG_REALTIME] = { POLICY_STATE_REQUIRE, 0 },
+ [POLICY_TAG_MULTIPATH] = { POLICY_STATE_AVOID, 0 },
+ [POLICY_TAG_TRUSTED] = { POLICY_STATE_PROHIBIT, 1 },
+ },
+ .stats = POLICY_STATS_NONE,
+ },
+ },
+};
+
+#endif /* HICN_POLICY_H */
diff --git a/ctrl/libhicnctrl/src/util/token.h b/ctrl/libhicnctrl/src/util/token.h
new file mode 100644
index 000000000..43e0a77b2
--- /dev/null
+++ b/ctrl/libhicnctrl/src/util/token.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* Token concatenation */
+
+/*
+ * Concatenate preprocessor tokens A and B without expanding macro definitions
+ * (however, if invoked from a macro, macro arguments are expanded).
+ */
+#define PPCAT_NX(A, B) A ## B
+
+/*
+ * Concatenate preprocessor tokens A and B after macro-expanding them.
+ */
+#define PPCAT(A, B) PPCAT_NX(A, B)
+
+/* Token stringification */
+
+/*
+ * Turn A into a string literal without expanding macro definitions
+ * (however, if invoked from a macro, macro arguments are expanded).
+ */
+#define STRINGIZE_NX(A) #A
+
+/*
+ * Turn A into a string literal after macro-expanding it.
+ */
+#define STRINGIZE(A) STRINGIZE_NX(A)
diff --git a/ctrl/libhicnctrl/src/util/types.h b/ctrl/libhicnctrl/src/util/types.h
new file mode 100644
index 000000000..10a0bdca0
--- /dev/null
+++ b/ctrl/libhicnctrl/src/util/types.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef UTIL_TYPES
+#define UTIL_TYPES
+
+typedef uint8_t u8;
+typedef uint16_t u16;
+typedef uint32_t u32;
+typedef uint64_t u64;
+
+/* Helper for avoiding warnings about type-punning */
+#define UNION_CAST(x, destType) \
+ (((union {__typeof__(x) a; destType b;})x).b)
+
+typedef unsigned int hash_t;
+
+typedef int (*cmp_t)(const void *, const void *);
+
+/* Enums */
+
+#define IS_VALID_ENUM_TYPE(NAME, x) ((x > NAME ## _UNDEFINED) && (x < NAME ## _N))
+
+#endif /* UTIL_TYPES */