srv6-mobile

Type: feature

Plug-in for IPv6 Segment Routing Mobile

This funcion was developed by

Signed-off-by: Satoru Matsuchima <satoru.matsushima@gmail.com>
Signed-off-by: Filip Varga <filipvarga89@gmail.com>
Signed-off-by: Tetsuya Murakami <tetsuya.mrk@gmail.com>

Signed-off-by: Tetsuya Murakami <tetsuya.mrk@gmail.com>
Change-Id: Ie995adc73d8f8d444339aab71619c3599e69f12d
Signed-off-by: Tetsuya Murakami <tetsuya.mrk@gmail.com>

1 files changed, 243 insertions, 0 deletions

diff --git a/src/plugins/srv6-mobile/mobile.h b/src/plugins/srv6-mobile/mobile.h
new file mode 100644
index 00000000000..8be9dc2b944
--- /dev/null
+++ b/src/plugins/srv6-mobile/mobile.h
@@ -0,0 +1,243 @@
+/*
+ * srv6_end.h
+ *
+ * Copyright (c) 2019 Arrcus Inc 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 __included_srv6_end_h__
+#define __included_srv6_end_h__
+
+#include <vnet/vnet.h>
+#include <vnet/ip/ip.h>
+#include <vnet/srv6/sr.h>
+#include <vnet/srv6/sr_packet.h>
+
+#include <vppinfra/error.h>
+#include <vppinfra/elog.h>
+
+#define SRV6_GTP_UDP_DST_PORT 2152
+
+#define SRV6_NHTYPE_NONE 	0
+#define SRV6_NHTYPE_IPV4 	1
+#define SRV6_NHTYPE_IPV6 	2
+#define SRV6_NHTYPE_NON_IP	3
+
+#ifndef IP_PROTOCOL_NONE
+#define IP_PROTOCOL_NONE	59
+#endif
+
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+#define BITALIGN2(A,B)          A; B
+#define BITALIGN3(A,B,C)        A; B; C
+#else
+#define BITALIGN2(A,B)          B; A
+#define BITALIGN3(A,B,C)        C; B; A
+#endif
+
+#define GTPU_EXTHDR_FLAG                0x04
+#define GTPU_EXTHDR_PDU_SESSION         0x85
+
+#define SRH_TAG_ECHO_REPLY              0x0008
+#define SRH_TAG_ECHO_REQUEST            0x0004
+#define SRH_TAG_ERROR_INDICATION        0x0002
+#define SRH_TAG_END_MARKER              0x0001
+
+/* *INDENT-OFF* */
+typedef struct
+{
+  u16 seq;
+  u8 npdu_num;
+  u8 nextexthdr;
+} __attribute__ ((packed)) gtpu_exthdr_t;
+/* *INDENT-ON* */
+
+/* *INDENT-OFF* */
+typedef struct
+{
+  u8 ver_flags;
+  u8 type;
+  u16 length;     /* length in octets of the payload */
+  u32 teid;
+  gtpu_exthdr_t ext[0];
+} __attribute__ ((packed)) gtpu_header_t;
+/* *INDENT-ON* */
+
+#define GTPU_TYPE_ECHO_REQUEST          1
+#define GTPU_TYPE_ECHO_REPLY            2
+#define GTPU_TYPE_ERROR_INDICATION      26
+#define GTPU_TYPE_END_MARKER            254
+#define GTPU_TYPE_GTPU                  255
+
+/* *INDENT-OFF* */
+typedef struct
+{
+  BITALIGN2 (u8 ppi:3,
+             u8 spare:5);
+
+  u8 padding[3];
+} __attribute__ ((packed)) gtpu_paging_policy_t;
+/* *INDENT-ON* */
+
+/* *INDENT-OFF* */
+typedef struct
+{
+  u8 exthdrlen;
+  BITALIGN2(u8 type:4,
+            u8 spare:4);
+  union {
+    struct gtpu_qfi_bits {BITALIGN3(u8 p:1,
+		                    u8 r:1,
+				    u8 qfi:6);
+    } bits;
+
+    u8 val;
+  } u;
+
+  gtpu_paging_policy_t  paging[0];
+  u8 nextexthdr;
+} __attribute__ ((packed)) gtpu_pdu_session_t;
+/* *INDENT-ON* */
+
+#define GTPU_PDU_SESSION_P_BIT_MASK     0x80
+#define GTPU_PDU_SESSION_R_BIT_MASK     0x40
+#define GTPU_PDU_SESSION_QFI_MASK       0x3f
+
+#define SRV6_PDU_SESSION_U_BIT_MASK     0x01
+#define SRV6_PDU_SESSION_R_BIT_MASK     0x02
+#define SRV6_PDU_SESSION_QFI_MASK       0xfC
+
+/* *INDENT-OFF* */
+typedef struct
+{
+  ip4_header_t ip4;            /* 20 bytes */
+  udp_header_t udp;            /* 8 bytes */
+  gtpu_header_t gtpu;        /* 8 bytes */
+} __attribute__ ((packed)) ip4_gtpu_header_t;
+/* *INDENT-ON* */
+
+/* *INDENT-OFF* */
+typedef struct
+{
+  ip6_header_t ip6;          /* 40 bytes */
+  udp_header_t udp;          /* 8 bytes */
+  gtpu_header_t gtpu;        /* 8 bytes */
+} __attribute__ ((packed)) ip6_gtpu_header_t;
+/* *INDENT-ON* */
+
+#define GTPU_V1_VER   (1<<5)
+
+#define GTPU_PT_GTP   (1<<4)
+
+typedef struct srv6_end_gtp6_param_s
+{
+  u8 nhtype;
+
+  ip6_address_t sr_prefix;
+  u32 sr_prefixlen;
+} srv6_end_gtp6_param_t;
+
+typedef struct srv6_end_gtp4_param_s
+{
+  u8 nhtype;
+
+  ip6_address_t sr_prefix;
+  u32 sr_prefixlen;
+
+  ip6_address_t v6src_prefix;
+  u32 v6src_prefixlen;
+
+  u32 v4src_position;
+} srv6_end_gtp4_param_t;
+
+typedef struct srv6_end_main_v4_s
+{
+  vlib_main_t *vlib_main;
+  vnet_main_t *vnet_main;
+
+  u32 end_m_gtp4_e_node_index;
+  u32 error_node_index;
+
+  u32 dst_p_len;		// dst prefix len
+  u32 src_p_len;		// src prefix len
+
+  ip4_gtpu_header_t cache_hdr;
+
+} srv6_end_main_v4_t;
+
+typedef struct srv6_end_main_v4_decap_s
+{
+  vlib_main_t *vlib_main;
+  vnet_main_t *vnet_main;
+
+  u32 end_m_gtp4_d_node_index;
+  u32 error_node_index;
+
+  ip6_header_t cache_hdr;
+} srv6_end_main_v4_decap_t;
+
+extern srv6_end_main_v4_t srv6_end_main_v4;
+extern srv6_end_main_v4_decap_t srv6_end_main_v4_decap;
+extern vlib_node_registration_t srv6_end_m_gtp4_e;
+
+typedef struct srv6_end_main_v6_s
+{
+  vlib_main_t *vlib_main;
+  vnet_main_t *vnet_main;
+
+  u32 end_m_gtp6_e_node_index;
+  u32 error_node_index;
+
+  ip6_gtpu_header_t cache_hdr;
+} srv6_end_main_v6_t;
+
+extern srv6_end_main_v6_t srv6_end_main_v6;
+extern vlib_node_registration_t srv6_end_m_gtp6_e;
+
+typedef struct srv6_end_main_v6_decap_s
+{
+  vlib_main_t *vlib_main;
+  vnet_main_t *vnet_main;
+
+  u32 end_m_gtp6_d_node_index;
+  u32 error_node_index;
+
+  ip6_header_t cache_hdr;
+} srv6_end_main_v6_decap_t;
+
+extern srv6_end_main_v6_decap_t srv6_end_main_v6_decap;
+extern vlib_node_registration_t srv6_end_m_gtp6_d;
+
+typedef struct srv6_end_main_v6_decap_di_s
+{
+  vlib_main_t *vlib_main;
+  vnet_main_t *vnet_main;
+
+  u32 end_m_gtp6_d_di_node_index;
+  u32 error_node_index;
+
+  ip6srv_combo_header_t cache_hdr;
+} srv6_end_main_v6_decap_di_t;
+
+extern srv6_end_main_v6_decap_di_t srv6_end_main_v6_decap_di;
+extern vlib_node_registration_t srv6_end_m_gtp6_d_di;
+
+#endif /* __included_srv6_end_h__ */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */