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Diffstat (limited to 'src/vnet/lisp-gpe/lisp_gpe_packet.h')
| -rw-r--r-- | src/vnet/lisp-gpe/lisp_gpe_packet.h | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/src/vnet/lisp-gpe/lisp_gpe_packet.h b/src/vnet/lisp-gpe/lisp_gpe_packet.h deleted file mode 100644 index 62ac9bd7015..00000000000 --- a/src/vnet/lisp-gpe/lisp_gpe_packet.h +++ /dev/null @@ -1,149 +0,0 @@ -/* - * 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. - */ -/** - * @file - * @brief LISP-GPE packet header structure - * - */ - -#ifndef included_lisp_gpe_packet_h -#define included_lisp_gpe_packet_h - -/* - * From draft-lewis-lisp-gpe-02.txt - * - * 0 1 2 3 - * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * |N|L|E|V|I|P|R|O|Ver| Reserved | Next Protocol | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | Instance ID/Locator-Status-Bits | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * - * N: The N-bit is the nonce-present bit. When this bit is set to 1, - * the low-order 24 bits of the first 32 bits of the LISP header - * contain a Nonce. See Section 6.3.1 for details. Both N- and - * V-bits MUST NOT be set in the same packet. If they are, a - * decapsulating ETR MUST treat the 'Nonce/Map-Version' field as - * having a Nonce value present. - * - * L: The L-bit is the 'Locator-Status-Bits' field enabled bit. When - * this bit is set to 1, the Locator-Status-Bits in the second - * 32 bits of the LISP header are in use. - * - * E: The E-bit is the echo-nonce-request bit. This bit MUST be ignored - * and has no meaning when the N-bit is set to 0. When the N-bit is - * set to 1 and this bit is set to 1, an ITR is requesting that the - * nonce value in the 'Nonce' field be echoed back in LISP- - * encapsulated packets when the ITR is also an ETR. See - * Section 6.3.1 for details. - * - * V: The V-bit is the Map-Version present bit. When this bit is set to - * 1, the N-bit MUST be 0. Refer to Section 6.6.3 for more details. - * - * I: The I-bit is the Instance ID bit. See Section 5.5 for more - * details. When this bit is set to 1, the 'Locator-Status-Bits' - * field is reduced to 8 bits and the high-order 24 bits are used as - * an Instance ID. If the L-bit is set to 0, then the low-order - * 8 bits are transmitted as zero and ignored on receipt. - * - * P Bit: Flag bit 5 is defined as the Next Protocol bit. The P bit - * MUST be set to 1 to indicate the presence of the 8 bit next - * protocol field. - * - * P = 0 indicates that the payload MUST conform to LISP as defined - * in [RFC6830]. - * - * Flag bit 5 was chosen as the P bit because this flag bit is - * currently unallocated in LISP [RFC6830]. - * - * O: Flag bit 7 is defined as the O bit. When the O bit is set to 1, the - * packet is an OAM packet and OAM processing MUST occur. The OAM - * protocol details are out of scope for this document. As with the - * P-bit, bit 7 is currently a reserved flag in [RFC6830]. - * - * Next Protocol Field: The lower 8 bits of the first word are used to - * carry a next protocol. This next protocol field contains the - * protocol of the encapsulated payload packet. - * - * LISP [RFC6830] uses the lower 16 bits of the first word for either - * a nonce, an echo-nonce ([RFC6830]) or to support map-versioning - * ([RFC6834]). These are all optional capabilities that are - * indicated by setting the N, E, and the V bit respectively. - * - * To maintain the desired data plane compatibility, when the P bit - * is set, the N, E, and V bits MUST be set to zero. - * - * A new protocol registry will be requested from IANA for the Next - * Protocol field. This draft defines the following Next Protocol - * values: - * - * 0x1 : IPv4 - * 0x2 : IPv6 - * 0x3 : Ethernet - * 0x4: Network Service Header - */ - -/** LISP-GPE header */ -typedef struct -{ - u8 flags; - u8 ver_res; - u8 res; - u8 next_protocol; - u32 iid; -} lisp_gpe_header_t; - -#define foreach_lisp_gpe_flag_bit \ -_(N, 0x80) \ -_(L, 0x40) \ -_(E, 0x20) \ -_(V, 0x10) \ -_(I, 0x08) \ -_(P, 0x04) \ -_(O, 0x01) - -typedef enum -{ -#define _(n,v) LISP_GPE_FLAGS_##n = v, - foreach_lisp_gpe_flag_bit -#undef _ -} vnet_lisp_gpe_flag_bit_t; - -#define LISP_GPE_VERSION 0x0 - -#define LISP_GPE_NEXT_PROTOCOL_IP4 0x1 -#define LISP_GPE_NEXT_PROTOCOL_IP6 0x2 -#define LISP_GPE_NEXT_PROTOCOL_ETHERNET 0x3 -#define LISP_GPE_NEXT_PROTOCOL_NSH 0x4 - -typedef enum -{ - LISP_GPE_NEXT_PROTO_IP4 = 1, - LISP_GPE_NEXT_PROTO_IP6, - LISP_GPE_NEXT_PROTO_ETHERNET, - LISP_GPE_NEXT_PROTO_NSH, - LISP_GPE_NEXT_PROTOS -} lisp_gpe_next_protocol_e; - -#endif /* included_lisp_gpe_packet_h */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |