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-rw-r--r--lib/src/CMakeLists.txt6
-rw-r--r--lib/src/face.c422
-rw-r--r--lib/src/util/ip_address.c11
3 files changed, 434 insertions, 5 deletions
diff --git a/lib/src/CMakeLists.txt b/lib/src/CMakeLists.txt
index 7eecaf775..6eb4c9554 100644
--- a/lib/src/CMakeLists.txt
+++ b/lib/src/CMakeLists.txt
@@ -17,6 +17,7 @@ list(APPEND LIBHICN_SOURCE_FILES
${CMAKE_CURRENT_SOURCE_DIR}/common.c
${CMAKE_CURRENT_SOURCE_DIR}/compat.c
${CMAKE_CURRENT_SOURCE_DIR}/error.c
+ ${CMAKE_CURRENT_SOURCE_DIR}/face.c
${CMAKE_CURRENT_SOURCE_DIR}/mapme.c
${CMAKE_CURRENT_SOURCE_DIR}/name.c
${CMAKE_CURRENT_SOURCE_DIR}/ops.c
@@ -30,7 +31,10 @@ list(APPEND LIBHICN_SOURCE_FILES
${CMAKE_CURRENT_SOURCE_DIR}/util/log.c
)
-set (COMPILER_DEFINITIONS "-DWITH_MAPME")
+set (COMPILER_DEFINITIONS
+ "-DWITH_MAPME"
+ "-DWITH_POLICY"
+)
include(BuildMacros)
include(WindowsMacros)
diff --git a/lib/src/face.c b/lib/src/face.c
new file mode 100644
index 000000000..6d0d9c486
--- /dev/null
+++ b/lib/src/face.c
@@ -0,0 +1,422 @@
+/*
+ * 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 <hicn/face.h>
+#include <hicn/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 _
+};
+
+netdevice_t *
+netdevice_create_from_index(u32 index)
+{
+ netdevice_t * netdevice = malloc(sizeof(netdevice_t));
+ if (!netdevice)
+ goto ERR_MALLOC;
+
+ int rc = netdevice_set_index(netdevice, index);
+ if (rc < 0)
+ goto ERR_INIT;
+
+ return netdevice;
+
+ERR_INIT:
+ free(netdevice);
+ERR_MALLOC:
+ return NULL;
+}
+
+netdevice_t *
+netdevice_create_from_name(const char * name)
+{
+ netdevice_t * netdevice = malloc(sizeof(netdevice_t));
+ if (!netdevice)
+ goto ERR_MALLOC;
+
+ int rc = netdevice_set_name(netdevice, name);
+ if (rc < 0)
+ goto ERR_INIT;
+
+ return netdevice;
+
+ERR_INIT:
+ free(netdevice);
+ERR_MALLOC:
+ return NULL;
+}
+
+/**
+ * \brief Update the index of the netdevice based on the name
+ */
+int
+netdevice_update_index(netdevice_t * netdevice)
+{
+ netdevice->index = if_nametoindex(netdevice->name);
+ if (netdevice->index == 0)
+ return -1;
+ return 0;
+}
+
+int
+netdevice_update_name(netdevice_t * netdevice)
+{
+ if (!if_indextoname(netdevice->index, netdevice->name))
+ return -1;
+ return 0;
+}
+
+void
+netdevice_free(netdevice_t * netdevice)
+{
+ free(netdevice);
+}
+
+int
+netdevice_get_index(const netdevice_t * netdevice, u32 * index)
+{
+ if (netdevice->index == 0)
+ return -1;
+ *index = netdevice->index;
+ return 0;
+}
+
+int
+netdevice_set_index(netdevice_t * netdevice, u32 index)
+{
+ netdevice->index = index;
+ return netdevice_update_name(netdevice);
+}
+
+int
+netdevice_get_name(const netdevice_t * netdevice, const char ** name)
+{
+ if (netdevice->name[0] == '\0')
+ return -1;
+ *name = netdevice->name;
+ return 0;
+}
+
+int
+netdevice_set_name(netdevice_t * netdevice, const char * name)
+{
+ memset(netdevice->name, 0, sizeof(netdevice->name));
+ int rc = snprintf(netdevice->name, IFNAMSIZ, "%s", name);
+ if (rc < 0)
+ return -1;
+ if (rc >= IFNAMSIZ)
+ return -2; /* truncated */
+ return netdevice_update_index(netdevice);
+}
+
+int
+netdevice_cmp(const netdevice_t * nd1, const netdevice_t * nd2)
+{
+ return (nd1->index - nd2->index);
+}
+
+
+/* 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)
+{
+ memset(face, 0, sizeof(face_t));
+ return 1;
+}
+
+int
+face_initialize_udp(face_t * face, const char * interface_name, const
+ ip_address_t * local_addr, u16 local_port,
+ const ip_address_t * remote_addr, u16 remote_port,
+ int family)
+{
+ if (!local_addr)
+ return -1;
+
+ *face = (face_t) {
+ .type = FACE_TYPE_UDP,
+ .family = family,
+ .local_addr = *local_addr,
+ .local_port = local_port,
+ .remote_addr = remote_addr ? *remote_addr : IP_ADDRESS_EMPTY,
+ .remote_port = remote_port,
+ };
+
+ snprintf(face->netdevice.name, IFNAMSIZ, "%s", interface_name);
+
+ return 1;
+}
+
+int
+face_initialize_udp_sa(face_t * face, const char * interface_name,
+ const struct sockaddr * local_addr,
+ const struct sockaddr * remote_addr)
+{
+ if (!local_addr)
+ return -1;
+
+ if (remote_addr && (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,
+ .family = AF_INET,
+ .local_addr.v4.as_inaddr = lsai->sin_addr,
+ .local_port = lsai ? ntohs(lsai->sin_port) : 0,
+ .remote_addr = IP_ADDRESS_EMPTY,
+ .remote_port = rsai ? ntohs(rsai->sin_port) : 0,
+ };
+ if (rsai)
+ face->remote_addr.v4.as_inaddr = rsai->sin_addr;
+ }
+ 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,
+ .family = AF_INET6,
+ .local_addr.v6.as_in6addr = lsai->sin6_addr,
+ .local_port = lsai ? ntohs(lsai->sin6_port) : 0,
+ .remote_addr = IP_ADDRESS_EMPTY,
+ .remote_port = rsai ? ntohs(rsai->sin6_port) : 0,
+ };
+ if (rsai)
+ face->remote_addr.v6.as_in6addr = rsai->sin6_addr;
+ }
+ break;
+ default:
+ return -1;
+ }
+
+ snprintf(face->netdevice.name, IFNAMSIZ, "%s", interface_name);
+
+ return 1;
+}
+
+face_t * face_create()
+{
+ face_t * face = calloc(1, sizeof(face_t));
+ return face;
+}
+
+face_t * face_create_udp(const char * interface_name,
+ 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, interface_name, 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 char * interface_name,
+ const struct sockaddr * local_addr,
+ const struct sockaddr * remote_addr)
+{
+ face_t * face = face_create();
+ if (face_initialize_udp_sa(face, interface_name, local_addr, remote_addr) < 0)
+ goto ERR_INIT;
+ return face;
+
+ERR_INIT:
+ free(face);
+ return NULL;
+}
+
+void face_free(face_t * face)
+{
+ free(face);
+}
+
+/**
+ * \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)
+{
+
+ int ret = f1->type - f2->type;
+ if (ret != 0)
+ return ret;
+
+ ret = f1->family - f2->family;
+ if (ret != 0)
+ return ret;
+
+ /*
+ * FIXME As hicn-light API might not return the netdevice, we can discard the
+ * comparison when one of the two is not set for now...
+ */
+ if ((f1->netdevice.index != 0) && (f2->netdevice.index != 0)) {
+ ret = netdevice_cmp(&f1->netdevice, &f2->netdevice);
+ if (ret != 0)
+ return ret;
+ }
+
+ switch(f1->type) {
+ case FACE_TYPE_HICN:
+ ret = ip_address_cmp(&f1->local_addr, &f2->local_addr, f1->family);
+ if (ret != 0)
+ return ret;
+
+ ret = ip_address_cmp(&f1->remote_addr, &f2->remote_addr, f1->family);
+ if (ret != 0)
+ return ret;
+
+ break;
+
+ case FACE_TYPE_TCP:
+ case FACE_TYPE_UDP:
+ ret = ip_address_cmp(&f1->local_addr, &f2->local_addr, f1->family);
+ if (ret != 0)
+ return ret;
+
+ ret = f1->local_port - f2->local_port;
+ if (ret != 0)
+ return ret;
+
+ ret = ip_address_cmp(&f1->remote_addr, &f2->remote_addr, f1->family);
+ if (ret != 0)
+ return ret;
+
+ ret = f1->remote_port - f2->remote_port;
+ if (ret != 0)
+ return ret;
+
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+/* /!\ 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:
+ {
+ char local[MAXSZ_IP_ADDRESS];
+ char remote[MAXSZ_IP_ADDRESS];
+ char tags[MAXSZ_POLICY_TAGS];
+
+ ip_address_snprintf(local, MAXSZ_IP_ADDRESS,
+ &face->local_addr,
+ face->family);
+ ip_address_snprintf(remote, MAXSZ_IP_ADDRESS,
+ &face->remote_addr,
+ face->family);
+ policy_tags_snprintf(tags, MAXSZ_POLICY_TAGS, face->tags);
+ return snprintf(s, size, "%s [%s -> %s] [%s]",
+ face_type_str(face->type),
+ local,
+ remote,
+ tags);
+ }
+ case FACE_TYPE_UNDEFINED:
+ case FACE_TYPE_TCP:
+ case FACE_TYPE_UDP:
+ {
+ char local[MAXSZ_IP_ADDRESS];
+ char remote[MAXSZ_IP_ADDRESS];
+ char tags[MAXSZ_POLICY_TAGS];
+
+ ip_address_snprintf(local, MAXSZ_IP_ADDRESS,
+ &face->local_addr,
+ face->family);
+ ip_address_snprintf(remote, MAXSZ_IP_ADDRESS,
+ &face->remote_addr,
+ face->family);
+ policy_tags_snprintf(tags, MAXSZ_POLICY_TAGS, face->tags);
+
+ return snprintf(s, size, "%s [%s:%d -> %s:%d] [%s]",
+ face_type_str(face->type),
+ local,
+ face->local_port,
+ remote,
+ face->remote_port,
+ tags);
+ }
+ default:
+ return -1;
+ }
+
+}
+
+policy_tags_t face_get_tags(const face_t * face)
+{
+ return face->tags;
+}
+
+int
+face_set_tags(face_t * face, policy_tags_t tags)
+{
+ face->tags = tags;
+ return 1;
+}
diff --git a/lib/src/util/ip_address.c b/lib/src/util/ip_address.c
index 49916547d..d4b34dc0b 100644
--- a/lib/src/util/ip_address.c
+++ b/lib/src/util/ip_address.c
@@ -302,10 +302,13 @@ ip_prefix_ntop(const ip_prefix_t * ip_prefix, char *dst, size_t size)
}
if (!s)
return -1;
- int rc = snprintf(dst, size, "%s/%d", ip_s, ip_prefix->len);
- if (rc >= size)
- return (int)size;
- return rc;
+ return snprintf(dst, size, "%s/%d", ip_s, ip_prefix->len);
+}
+
+int
+ip_prefix_snprintf(char * s, size_t size, const ip_prefix_t * prefix)
+{
+ return ip_prefix_ntop(prefix, s, size);
}
int