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Diffstat (limited to 'src/plugins/srv6-mobile/mobile.h')
| -rw-r--r-- | src/plugins/srv6-mobile/mobile.h | 243 |
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: + */ |