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authorPavel Kotucek <pkotucek@cisco.com>2016-12-20 10:01:20 +0100
committerDamjan Marion <dmarion.lists@gmail.com>2016-12-21 22:47:32 +0000
commitc4d1cf76072b54f630b0263cd86e01df82249568 (patch)
tree212bd23d4b7464669a407eb8711e187ca5c3171c /vnet
parent1099b0db45a7a0bb597c4deb5b9387f5b6ae280f (diff)
API refactoring : l2tp
Change-Id: I30d2785ceaf304b245192f9bce60e37e9da69023 Signed-off-by: Pavel Kotucek <pkotucek@cisco.com>
Diffstat (limited to 'vnet')
-rw-r--r--vnet/Makefile.am11
-rw-r--r--vnet/vnet/l2tp/l2tp.api126
-rw-r--r--vnet/vnet/l2tp/l2tp_api.c267
-rw-r--r--vnet/vnet/vnet_all_api_h.h1
4 files changed, 402 insertions, 3 deletions
diff --git a/vnet/Makefile.am b/vnet/Makefile.am
index 4425171b9fb..37798c9c3bb 100644
--- a/vnet/Makefile.am
+++ b/vnet/Makefile.am
@@ -30,6 +30,8 @@ BUILT_SOURCES = \
vnet/ip/ip.api.json \
vnet/l2/l2.api.h \
vnet/l2/l2.api.json \
+ vnet/l2tp/l2tp.api.h \
+ vnet/l2tp/l2tp.api.json \
vnet/map/map.api.h \
vnet/map/map.api.json \
vnet/span/span.api.h \
@@ -487,11 +489,13 @@ libvnet_la_SOURCES += \
vnet/l2tp/l2tp.c \
vnet/l2tp/encap.c \
vnet/l2tp/decap.c \
- vnet/l2tp/pg.c
+ vnet/l2tp/pg.c \
+ vnet/l2tp/l2tp_api.c
nobase_include_HEADERS += \
vnet/l2tp/l2tp.h \
- vnet/l2tp/packet.h
+ vnet/l2tp/packet.h \
+ vnet/l2tp/l2tp.api.h
########################################
# Tunnel protocol: gre+mpls
@@ -964,12 +968,13 @@ api_DATA = \
vnet/interface.api.json \
vnet/ip/ip.api.json \
vnet/l2/l2.api.json \
+ vnet/l2tp/l2tp.api.json \
vnet/map/map.api.json \
vnet/span/span.api.json \
vnet/unix/tap.api.json \
vnet/vxlan/vxlan.api.json \
vnet/vxlan-gpe/vxlan_gpe.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/l2tp/l2tp.api b/vnet/vnet/l2tp/l2tp.api
new file mode 100644
index 00000000000..5a5a5a48a68
--- /dev/null
+++ b/vnet/vnet/l2tp/l2tp.api
@@ -0,0 +1,126 @@
+/*
+ * 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.
+ */
+
+/** \brief l2tpv3 tunnel interface create request
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param client_address - remote client tunnel ip address
+ @param client_address - local tunnel ip address
+ @param is_ipv6 - ipv6 if non-zero, else ipv4
+ @param local_session_id - local tunnel session id
+ @param remote_session_id - remote tunnel session id
+ @param local_cookie - local tunnel cookie
+ @param l2_sublayer_present - l2 sublayer is present in packets if non-zero
+ @param encap_vrf_id - fib identifier used for outgoing encapsulated packets
+*/
+define l2tpv3_create_tunnel
+{
+ u32 client_index;
+ u32 context;
+ u8 client_address[16];
+ u8 our_address[16];
+ u8 is_ipv6;
+ u32 local_session_id;
+ u32 remote_session_id;
+ u64 local_cookie;
+ u64 remote_cookie;
+ u8 l2_sublayer_present;
+ u32 encap_vrf_id;
+};
+
+/** \brief l2tpv3 tunnel interface create response
+ @param context - sender context, to match reply w/ request
+ @param retval - return code for the request
+ @param sw_if_index - index of the new tunnel interface
+*/
+define l2tpv3_create_tunnel_reply
+{
+ u32 context;
+ i32 retval;
+ u32 sw_if_index;
+};
+
+define l2tpv3_set_tunnel_cookies
+{
+ u32 client_index;
+ u32 context;
+ u32 sw_if_index;
+ u64 new_local_cookie;
+ u64 new_remote_cookie;
+};
+
+/** \brief L2TP tunnel set cookies response
+ @param context - sender context, to match reply w/ request
+ @param retval - return code for the request
+*/
+define l2tpv3_set_tunnel_cookies_reply
+{
+ u32 context;
+ i32 retval;
+};
+
+define sw_if_l2tpv3_tunnel_details
+{
+ u32 context;
+ u32 sw_if_index;
+ u8 interface_name[64];
+ u8 client_address[16];
+ u8 our_address[16];
+ u32 local_session_id;
+ u32 remote_session_id;
+ u64 local_cookie[2];
+ u64 remote_cookie;
+ u8 l2_sublayer_present;
+};
+
+define sw_if_l2tpv3_tunnel_dump
+{
+ u32 client_index;
+ u32 context;
+};
+
+define l2tpv3_interface_enable_disable
+{
+ u32 client_index;
+ u32 context;
+ u8 enable_disable;
+ u32 sw_if_index;
+};
+
+define l2tpv3_interface_enable_disable_reply
+{
+ u32 context;
+ i32 retval;
+};
+
+define l2tpv3_set_lookup_key
+{
+ u32 client_index;
+ u32 context;
+ /* 0 = ip6 src_address, 1 = ip6 dst_address, 2 = session_id */
+ u8 key;
+};
+
+define l2tpv3_set_lookup_key_reply
+{
+ u32 context;
+ i32 retval;
+};
+
+/*
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/vnet/vnet/l2tp/l2tp_api.c b/vnet/vnet/l2tp/l2tp_api.c
new file mode 100644
index 00000000000..88d758c9ff0
--- /dev/null
+++ b/vnet/vnet/l2tp/l2tp_api.c
@@ -0,0 +1,267 @@
+/*
+ *------------------------------------------------------------------
+ * l2tp_api.c - l2tpv3 api
+ *
+ * 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/l2tp/l2tp.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_vpe_api_msg \
+_(L2TPV3_CREATE_TUNNEL, l2tpv3_create_tunnel) \
+_(L2TPV3_SET_TUNNEL_COOKIES, l2tpv3_set_tunnel_cookies) \
+_(L2TPV3_INTERFACE_ENABLE_DISABLE, l2tpv3_interface_enable_disable) \
+_(L2TPV3_SET_LOOKUP_KEY, l2tpv3_set_lookup_key) \
+_(SW_IF_L2TPV3_TUNNEL_DUMP, sw_if_l2tpv3_tunnel_dump)
+
+static void
+send_sw_if_l2tpv3_tunnel_details (vpe_api_main_t * am,
+ unix_shared_memory_queue_t * q,
+ l2t_session_t * s,
+ l2t_main_t * lm, u32 context)
+{
+ vl_api_sw_if_l2tpv3_tunnel_details_t *mp;
+ u8 *if_name = NULL;
+ vnet_sw_interface_t *si = NULL;
+
+ si = vnet_get_hw_sw_interface (lm->vnet_main, s->hw_if_index);
+
+ if_name = format (if_name, "%U",
+ format_vnet_sw_interface_name, lm->vnet_main, si);
+
+ mp = vl_msg_api_alloc (sizeof (*mp));
+ memset (mp, 0, sizeof (*mp));
+ mp->_vl_msg_id = ntohs (VL_API_SW_IF_L2TPV3_TUNNEL_DETAILS);
+ strncpy ((char *) mp->interface_name,
+ (char *) if_name, ARRAY_LEN (mp->interface_name) - 1);
+ mp->sw_if_index = ntohl (si->sw_if_index);
+ mp->local_session_id = s->local_session_id;
+ mp->remote_session_id = s->remote_session_id;
+ mp->local_cookie[0] = s->local_cookie[0];
+ mp->local_cookie[1] = s->local_cookie[1];
+ mp->remote_cookie = s->remote_cookie;
+ clib_memcpy (mp->client_address, &s->client_address,
+ sizeof (s->client_address));
+ clib_memcpy (mp->our_address, &s->our_address, sizeof (s->our_address));
+ mp->l2_sublayer_present = s->l2_sublayer_present;
+ mp->context = context;
+
+ vl_msg_api_send_shmem (q, (u8 *) & mp);
+}
+
+
+static void
+vl_api_sw_if_l2tpv3_tunnel_dump_t_handler (vl_api_sw_if_l2tpv3_tunnel_dump_t *
+ mp)
+{
+ vpe_api_main_t *am = &vpe_api_main;
+ l2t_main_t *lm = &l2t_main;
+ unix_shared_memory_queue_t *q;
+ l2t_session_t *session;
+
+ q = vl_api_client_index_to_input_queue (mp->client_index);
+ if (q == 0)
+ return;
+
+ /* *INDENT-OFF* */
+ pool_foreach (session, lm->sessions,
+ ({
+ send_sw_if_l2tpv3_tunnel_details (am, q, session, lm, mp->context);
+ }));
+ /* *INDENT-ON* */
+}
+
+static void vl_api_l2tpv3_create_tunnel_t_handler
+ (vl_api_l2tpv3_create_tunnel_t * mp)
+{
+ vl_api_l2tpv3_create_tunnel_reply_t *rmp;
+ l2t_main_t *lm = &l2t_main;
+ u32 sw_if_index = (u32) ~ 0;
+ int rv;
+
+ if (mp->is_ipv6 != 1)
+ {
+ rv = VNET_API_ERROR_UNIMPLEMENTED;
+ goto out;
+ }
+
+ u32 encap_fib_index;
+
+ if (mp->encap_vrf_id != ~0)
+ {
+ uword *p;
+ ip6_main_t *im = &ip6_main;
+ if (!
+ (p =
+ hash_get (im->fib_index_by_table_id, ntohl (mp->encap_vrf_id))))
+ {
+ rv = VNET_API_ERROR_NO_SUCH_FIB;
+ goto out;
+ }
+ encap_fib_index = p[0];
+ }
+ else
+ {
+ encap_fib_index = ~0;
+ }
+
+ rv = create_l2tpv3_ipv6_tunnel (lm,
+ (ip6_address_t *) mp->client_address,
+ (ip6_address_t *) mp->our_address,
+ ntohl (mp->local_session_id),
+ ntohl (mp->remote_session_id),
+ clib_net_to_host_u64 (mp->local_cookie),
+ clib_net_to_host_u64 (mp->remote_cookie),
+ mp->l2_sublayer_present,
+ encap_fib_index, &sw_if_index);
+
+out:
+ /* *INDENT-OFF* */
+ REPLY_MACRO2(VL_API_L2TPV3_CREATE_TUNNEL_REPLY,
+ ({
+ rmp->sw_if_index = ntohl (sw_if_index);
+ }));
+ /* *INDENT-ON* */
+}
+
+static void vl_api_l2tpv3_set_tunnel_cookies_t_handler
+ (vl_api_l2tpv3_set_tunnel_cookies_t * mp)
+{
+ vl_api_l2tpv3_set_tunnel_cookies_reply_t *rmp;
+ l2t_main_t *lm = &l2t_main;
+ int rv;
+
+ VALIDATE_SW_IF_INDEX (mp);
+
+ rv = l2tpv3_set_tunnel_cookies (lm, ntohl (mp->sw_if_index),
+ clib_net_to_host_u64 (mp->new_local_cookie),
+ clib_net_to_host_u64
+ (mp->new_remote_cookie));
+
+ BAD_SW_IF_INDEX_LABEL;
+
+ REPLY_MACRO (VL_API_L2TPV3_SET_TUNNEL_COOKIES_REPLY);
+}
+
+static void vl_api_l2tpv3_interface_enable_disable_t_handler
+ (vl_api_l2tpv3_interface_enable_disable_t * mp)
+{
+ int rv;
+ vnet_main_t *vnm = vnet_get_main ();
+ vl_api_l2tpv3_interface_enable_disable_reply_t *rmp;
+
+ VALIDATE_SW_IF_INDEX (mp);
+
+ rv = l2tpv3_interface_enable_disable
+ (vnm, ntohl (mp->sw_if_index), mp->enable_disable);
+
+ BAD_SW_IF_INDEX_LABEL;
+
+ REPLY_MACRO (VL_API_L2TPV3_INTERFACE_ENABLE_DISABLE_REPLY);
+}
+
+static void vl_api_l2tpv3_set_lookup_key_t_handler
+ (vl_api_l2tpv3_set_lookup_key_t * mp)
+{
+ int rv = 0;
+ l2t_main_t *lm = &l2t_main;
+ vl_api_l2tpv3_set_lookup_key_reply_t *rmp;
+
+ if (mp->key > L2T_LOOKUP_SESSION_ID)
+ {
+ rv = VNET_API_ERROR_INVALID_VALUE;
+ goto out;
+ }
+
+ lm->lookup_type = mp->key;
+
+out:
+ REPLY_MACRO (VL_API_L2TPV3_SET_LOOKUP_KEY_REPLY);
+}
+
+/*
+ * l2tp_api_hookup
+ * Add vpe's API message handlers to the table.
+ * vlib has alread mapped shared memory and
+ * added the client registration handlers.
+ * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
+ */
+#define vl_msg_name_crc_list
+#include <vnet/vnet_all_api_h.h>
+#undef vl_msg_name_crc_list
+
+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_l2tp;
+#undef _
+}
+
+static clib_error_t *
+l2tp_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_vpe_api_msg;
+#undef _
+
+ /*
+ * Set up the (msg_name, crc, message-id) table
+ */
+ setup_message_id_table (am);
+
+ return 0;
+}
+
+VLIB_API_INIT_FUNCTION (l2tp_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 379f6b05cd1..7acbf2897ce 100644
--- a/vnet/vnet/vnet_all_api_h.h
+++ b/vnet/vnet/vnet_all_api_h.h
@@ -36,6 +36,7 @@
#include <vnet/interface.api.h>
#include <vnet/map/map.api.h>
#include <vnet/l2/l2.api.h>
+#include <vnet/l2tp/l2tp.api.h>
#include <vnet/span/span.api.h>
#include <vnet/ip/ip.api.h>
#include <vnet/unix/tap.api.h>