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-rw-r--r--vnet/Makefile.am9
-rw-r--r--vnet/vnet/unix/tap.api123
-rw-r--r--vnet/vnet/unix/tap_api.c257
-rw-r--r--vnet/vnet/vnet_all_api_h.h1
4 files changed, 388 insertions, 2 deletions
diff --git a/vnet/Makefile.am b/vnet/Makefile.am
index 930d6bb9278..eb7f8ef1a01 100644
--- a/vnet/Makefile.am
+++ b/vnet/Makefile.am
@@ -25,7 +25,9 @@ BUILT_SOURCES = \
vnet/map/map.api.h \
vnet/map/map.api.json \
vnet/span/span.api.h \
- vnet/span/span.api.json
+ vnet/span/span.api.json \
+ vnet/unix/tap.api.h \
+ vnet/unix/tap.api.json
libvnet_la_SOURCES =
libvnetplugin_la_SOURCES =
@@ -787,12 +789,14 @@ nobase_include_HEADERS += \
libvnet_la_SOURCES += \
vnet/unix/gdb_funcs.c \
vnet/unix/pcap.c \
+ vnet/unix/tap_api.c \
vnet/unix/tapcli.c \
vnet/unix/tuntap.c
nobase_include_HEADERS += \
vnet/unix/pcap.h \
vnet/unix/tuntap.h \
+ vnet/unix/tap.api.h \
vnet/unix/tapcli.h
########################################
@@ -918,7 +922,8 @@ api_DATA = \
vnet/ip/ip.api.json \
vnet/l2/l2.api.json \
vnet/map/map.api.json \
- vnet/span/span.api.json
+ vnet/span/span.api.json \
+ vnet/unix/tap.api.json
# The actual %.api.h rule is in .../build-data/packages/suffix-rules.mk
# and requires a symbolic link at the top of the vnet source tree
diff --git a/vnet/vnet/unix/tap.api b/vnet/vnet/unix/tap.api
new file mode 100644
index 00000000000..9b16eadbf86
--- /dev/null
+++ b/vnet/vnet/unix/tap.api
@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2015-2016 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
+
+ This file defines vpe control-plane API messages for
+ the Linux kernel TAP device driver
+*/
+
+/** \brief Initialize a new tap interface with the given paramters
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param use_random_mac - let the system generate a unique mac address
+ @param tap_name - name to associate with the new interface
+ @param mac_address - mac addr to assign to the interface if use_radom not set
+*/
+define tap_connect
+{
+ u32 client_index;
+ u32 context;
+ u8 use_random_mac;
+ u8 tap_name[64];
+ u8 mac_address[6];
+ u8 renumber;
+ u32 custom_dev_instance;
+ u8 tag[64];
+};
+
+/** \brief Reply for tap connect request
+ @param context - returned sender context, to match reply w/ request
+ @param retval - return code
+ @param sw_if_index - software index allocated for the new tap interface
+*/
+define tap_connect_reply
+{
+ u32 context;
+ i32 retval;
+ u32 sw_if_index;
+};
+
+/** \brief Modify a tap interface with the given paramters
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param sw_if_index - interface index of existing tap interface
+ @param use_random_mac - let the system generate a unique mac address
+ @param tap_name - name to associate with the new interface
+ @param mac_address - mac addr to assign to the interface if use_radom not set
+*/
+define tap_modify
+{
+ u32 client_index;
+ u32 context;
+ u32 sw_if_index;
+ u8 use_random_mac;
+ u8 tap_name[64];
+ u8 mac_address[6];
+ u8 renumber;
+ u32 custom_dev_instance;
+};
+
+/** \brief Reply for tap modify request
+ @param context - returned sender context, to match reply w/ request
+ @param retval - return code
+ @param sw_if_index - software index if the modified tap interface
+*/
+define tap_modify_reply
+{
+ u32 context;
+ i32 retval;
+ u32 sw_if_index;
+};
+
+/** \brief Delete tap interface
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param sw_if_index - interface index of existing tap interface
+*/
+define tap_delete
+{
+ u32 client_index;
+ u32 context;
+ u32 sw_if_index;
+};
+
+/** \brief Reply for tap delete request
+ @param context - returned sender context, to match reply w/ request
+ @param retval - return code
+*/
+define tap_delete_reply
+{
+ u32 context;
+ i32 retval;
+};
+
+/** \brief Dump tap interfaces request */
+define sw_interface_tap_dump
+{
+ u32 client_index;
+ u32 context;
+};
+
+/** \brief Reply for tap dump request
+ @param sw_if_index - software index of tap interface
+ @param dev_name - Linux tap device name
+*/
+define sw_interface_tap_details
+{
+ u32 context;
+ u32 sw_if_index;
+ u8 dev_name[64];
+};
diff --git a/vnet/vnet/unix/tap_api.c b/vnet/vnet/unix/tap_api.c
new file mode 100644
index 00000000000..99b79ba2e70
--- /dev/null
+++ b/vnet/vnet/unix/tap_api.c
@@ -0,0 +1,257 @@
+/*
+ *------------------------------------------------------------------
+ * tap_api.c - vnet tap device driver API support
+ *
+ * Copyright (c) 2016 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 <vnet/vnet.h>
+#include <vlibmemory/api.h>
+
+#include <vnet/interface.h>
+#include <vnet/api_errno.h>
+#include <vnet/ethernet/ethernet.h>
+#include <vnet/ip/ip.h>
+#include <vnet/unix/tuntap.h>
+#include <vnet/unix/tapcli.h>
+
+#include <vnet/vnet_msg_enum.h>
+
+#define vl_typedefs /* define message structures */
+#include <vnet/vnet_all_api_h.h>
+#undef vl_typedefs
+
+#define vl_endianfun /* define message structures */
+#include <vnet/vnet_all_api_h.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
+#define vl_printfun
+#include <vnet/vnet_all_api_h.h>
+#undef vl_printfun
+
+#include <vlibapi/api_helper_macros.h>
+
+#define foreach_tap_api_msg \
+_(TAP_CONNECT, tap_connect) \
+_(TAP_MODIFY, tap_modify) \
+_(TAP_DELETE, tap_delete) \
+_(SW_INTERFACE_TAP_DUMP, sw_interface_tap_dump)
+
+#define vl_msg_name_crc_list
+#include <vnet/unix/tap.api.h>
+#undef vl_msg_name_crc_list
+
+/*
+ * WARNING: replicated pending api refactor completion
+ */
+static void
+send_sw_interface_flags_deleted (vpe_api_main_t * am,
+ unix_shared_memory_queue_t * q,
+ u32 sw_if_index)
+{
+ vl_api_sw_interface_set_flags_t *mp;
+
+ mp = vl_msg_api_alloc (sizeof (*mp));
+ memset (mp, 0, sizeof (*mp));
+ mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_SET_FLAGS);
+ mp->sw_if_index = ntohl (sw_if_index);
+
+ mp->admin_up_down = 0;
+ mp->link_up_down = 0;
+ mp->deleted = 1;
+ vl_msg_api_send_shmem (q, (u8 *) & mp);
+}
+
+static void
+vl_api_tap_connect_t_handler (vl_api_tap_connect_t * mp)
+{
+ vlib_main_t *vm = vlib_get_main ();
+ int rv;
+ vl_api_tap_connect_reply_t *rmp;
+ vnet_main_t *vnm = vnet_get_main ();
+ unix_shared_memory_queue_t *q;
+ u32 sw_if_index = (u32) ~ 0;
+ u8 *tag;
+
+ rv = vnet_tap_connect_renumber (vm, mp->tap_name,
+ mp->use_random_mac ? 0 : mp->mac_address,
+ &sw_if_index, mp->renumber,
+ ntohl (mp->custom_dev_instance));
+
+ /* Add tag if supplied */
+ if (rv == 0 && mp->tag[0])
+ {
+ mp->tag[ARRAY_LEN (mp->tag) - 1] = 0;
+ tag = format (0, "%s%c", mp->tag, 0);
+ vnet_set_sw_interface_tag (vnm, tag, sw_if_index);
+ }
+
+ q = vl_api_client_index_to_input_queue (mp->client_index);
+ if (!q)
+ return;
+
+ rmp = vl_msg_api_alloc (sizeof (*rmp));
+ rmp->_vl_msg_id = ntohs (VL_API_TAP_CONNECT_REPLY);
+ rmp->context = mp->context;
+ rmp->retval = ntohl (rv);
+ rmp->sw_if_index = ntohl (sw_if_index);
+
+ vl_msg_api_send_shmem (q, (u8 *) & rmp);
+}
+
+static void
+vl_api_tap_modify_t_handler (vl_api_tap_modify_t * mp)
+{
+ int rv;
+ vl_api_tap_modify_reply_t *rmp;
+ unix_shared_memory_queue_t *q;
+ u32 sw_if_index = (u32) ~ 0;
+ vlib_main_t *vm = vlib_get_main ();
+
+ rv = vnet_tap_modify (vm, ntohl (mp->sw_if_index), mp->tap_name,
+ mp->use_random_mac ? 0 : mp->mac_address,
+ &sw_if_index, mp->renumber,
+ ntohl (mp->custom_dev_instance));
+
+ q = vl_api_client_index_to_input_queue (mp->client_index);
+ if (!q)
+ return;
+
+ rmp = vl_msg_api_alloc (sizeof (*rmp));
+ rmp->_vl_msg_id = ntohs (VL_API_TAP_MODIFY_REPLY);
+ rmp->context = mp->context;
+ rmp->retval = ntohl (rv);
+ rmp->sw_if_index = ntohl (sw_if_index);
+
+ vl_msg_api_send_shmem (q, (u8 *) & rmp);
+}
+
+static void
+vl_api_tap_delete_t_handler (vl_api_tap_delete_t * mp)
+{
+ vlib_main_t *vm = vlib_get_main ();
+ int rv;
+ vpe_api_main_t *vam = &vpe_api_main;
+ vl_api_tap_delete_reply_t *rmp;
+ unix_shared_memory_queue_t *q;
+ u32 sw_if_index = ntohl (mp->sw_if_index);
+
+ rv = vnet_tap_delete (vm, sw_if_index);
+ if (!rv)
+ {
+ vnet_main_t *vnm = vnet_get_main ();
+ vnet_clear_sw_interface_tag (vnm, sw_if_index);
+ }
+
+ q = vl_api_client_index_to_input_queue (mp->client_index);
+ if (!q)
+ return;
+
+ rmp = vl_msg_api_alloc (sizeof (*rmp));
+ rmp->_vl_msg_id = ntohs (VL_API_TAP_DELETE_REPLY);
+ rmp->context = mp->context;
+ rmp->retval = ntohl (rv);
+
+ vl_msg_api_send_shmem (q, (u8 *) & rmp);
+
+ if (!rv)
+ send_sw_interface_flags_deleted (vam, q, sw_if_index);
+}
+
+static void
+send_sw_interface_tap_details (vpe_api_main_t * am,
+ unix_shared_memory_queue_t * q,
+ tapcli_interface_details_t * tap_if,
+ u32 context)
+{
+ vl_api_sw_interface_tap_details_t *mp;
+ mp = vl_msg_api_alloc (sizeof (*mp));
+ memset (mp, 0, sizeof (*mp));
+ mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_TAP_DETAILS);
+ mp->sw_if_index = ntohl (tap_if->sw_if_index);
+ strncpy ((char *) mp->dev_name,
+ (char *) tap_if->dev_name, ARRAY_LEN (mp->dev_name) - 1);
+ mp->context = context;
+
+ vl_msg_api_send_shmem (q, (u8 *) & mp);
+}
+
+static void
+vl_api_sw_interface_tap_dump_t_handler (vl_api_sw_interface_tap_dump_t * mp)
+{
+ int rv = 0;
+ vpe_api_main_t *am = &vpe_api_main;
+ unix_shared_memory_queue_t *q;
+ tapcli_interface_details_t *tapifs = NULL;
+ tapcli_interface_details_t *tap_if = NULL;
+
+ q = vl_api_client_index_to_input_queue (mp->client_index);
+ if (q == 0)
+ return;
+
+ rv = vnet_tap_dump_ifs (&tapifs);
+ if (rv)
+ return;
+
+ vec_foreach (tap_if, tapifs)
+ {
+ send_sw_interface_tap_details (am, q, tap_if, mp->context);
+ }
+
+ vec_free (tapifs);
+}
+
+static void
+setup_message_id_table (api_main_t * am)
+{
+#define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
+ foreach_vl_msg_name_crc_tap;
+#undef _
+}
+
+static clib_error_t *
+tap_api_hookup (vlib_main_t * vm)
+{
+ api_main_t *am = &api_main;
+
+#define _(N,n) \
+ vl_msg_api_set_handlers(VL_API_##N, #n, \
+ vl_api_##n##_t_handler, \
+ vl_noop_handler, \
+ vl_api_##n##_t_endian, \
+ vl_api_##n##_t_print, \
+ sizeof(vl_api_##n##_t), 1);
+ foreach_tap_api_msg;
+#undef _
+
+ /*
+ * Set up the (msg_name, crc, message-id) table
+ */
+ setup_message_id_table (am);
+
+ return 0;
+}
+
+VLIB_API_INIT_FUNCTION (tap_api_hookup);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/vnet/vnet/vnet_all_api_h.h b/vnet/vnet/vnet_all_api_h.h
index 4f14ab2112b..dfc27239e89 100644
--- a/vnet/vnet/vnet_all_api_h.h
+++ b/vnet/vnet/vnet_all_api_h.h
@@ -34,6 +34,7 @@
#include <vnet/l2/l2.api.h>
#include <vnet/span/span.api.h>
#include <vnet/ip/ip.api.h>
+#include <vnet/unix/tap.api.h>
/*
* fd.io coding-style-patch-verification: ON