projects / mirror_frr.git / blame
| Commit | Line | Data |
|---|---|---|
| acddc0ed | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
| 4d9ad5dc MS |
2 | /* |
| 3 | * Multicast traceroute for FRRouting | |
| 4 | * Copyright (C) 2017 Mladen Sablic | |
| 4d9ad5dc MS |
5 | */ |
| 6 | ||
| 7 | #ifndef PIM_IGMP_MTRACE_H | |
| 8 | #define PIM_IGMP_MTRACE_H | |
| 9 | ||
| 10 | #include <zebra.h> | |
| 11 | ||
| 12 | #include "pim_igmp.h" | |
| 13 | ||
| 14 | #define MTRACE_MAX_HOPS (255) | |
| 15 | #define MTRACE_UNKNOWN_COUNT (0xffffffff) | |
| 71e55fb2 MS |
16 | #define MTRACE_SRC_MASK_GROUP (0x3f) /* forwarding on group state (*,G) */ |
| 17 | #define MTRACE_SRC_MASK_SOURCE (0x20) /* i.e. 32 forwarding on (S,G) */ | |
| 4d9ad5dc MS |
18 | |
| 19 | enum mtrace_fwd_code { | |
| 996c9314 LB |
20 | MTRACE_FWD_CODE_NO_ERROR = 0x00, |
| 21 | MTRACE_FWD_CODE_WRONG_IF = 0x01, | |
| 22 | MTRACE_FWD_CODE_PRUNE_SENT = 0x02, | |
| 23 | MTRACE_FWD_CODE_PRUNE_RCVD = 0x03, | |
| 24 | MTRACE_FWD_CODE_SCOPED = 0x04, | |
| 25 | MTRACE_FWD_CODE_NO_ROUTE = 0x05, | |
| 26 | MTRACE_FWD_CODE_WRONG_LAST_HOP = 0x06, | |
| 27 | MTRACE_FWD_CODE_NOT_FORWARDING = 0x07, | |
| 28 | MTRACE_FWD_CODE_REACHED_RP = 0x08, | |
| 29 | MTRACE_FWD_CODE_RPF_IF = 0x09, | |
| 30 | MTRACE_FWD_CODE_NO_MULTICAST = 0x0A, | |
| 31 | MTRACE_FWD_CODE_INFO_HIDDEN = 0x0B, | |
| 32 | MTRACE_FWD_CODE_NO_SPACE = 0x81, | |
| 33 | MTRACE_FWD_CODE_OLD_ROUTER = 0x82, | |
| 34 | MTRACE_FWD_CODE_ADMIN_PROHIB = 0x83 | |
| 4d9ad5dc MS |
35 | }; |
| 36 | ||
| 37 | enum mtrace_rtg_proto { | |
| 996c9314 LB |
38 | MTRACE_RTG_PROTO_DVMRP = 1, |
| 39 | MTRACE_RTG_PROTO_MOSPF = 2, | |
| 40 | MTRACE_RTG_PROTO_PIM = 3, | |
| 41 | MTRACE_RTG_PROTO_CBT = 4, | |
| 42 | MTRACE_RTG_PROTO_PIM_SPECIAL = 5, | |
| 43 | MTRACE_RTG_PROTO_PIM_STATIC = 6, | |
| 44 | MTRACE_RTG_PROTO_DVMRP_STATIC = 7, | |
| 45 | MTRACE_RTG_PROTO_PIM_MBGP = 8, | |
| 46 | MTRACE_RTG_PROTO_CBT_SPECIAL = 9, | |
| 47 | MTRACE_RTG_PROTO_CBT_STATIC = 10, | |
| 48 | MTRACE_RTG_PROTO_PIM_ASSERT = 11, | |
| 4d9ad5dc MS |
49 | }; |
| 50 | ||
| 51 | struct igmp_mtrace_rsp { | |
| 52 | uint32_t arrival; | |
| 53 | struct in_addr incoming; | |
| 54 | struct in_addr outgoing; | |
| 55 | struct in_addr prev_hop; | |
| 56 | uint32_t in_count; | |
| 57 | uint32_t out_count; | |
| 58 | uint32_t total; | |
| 59 | uint32_t rtg_proto : 8; | |
| 60 | uint32_t fwd_ttl : 8; | |
| 61 | /* little endian order for next three fields */ | |
| 62 | uint32_t src_mask : 6; | |
| 63 | uint32_t s : 1; | |
| 64 | uint32_t mbz : 1; | |
| 65 | uint32_t fwd_code : 8; | |
| 66 | } __attribute__((packed)); | |
| 67 | ||
| 68 | struct igmp_mtrace { | |
| 69 | uint8_t type; | |
| 70 | uint8_t hops; | |
| 71 | uint16_t checksum; | |
| 72 | struct in_addr grp_addr; | |
| 73 | struct in_addr src_addr; | |
| 74 | struct in_addr dst_addr; | |
| 75 | struct in_addr rsp_addr; | |
| 76 | uint32_t rsp_ttl : 8; | |
| 77 | uint32_t qry_id : 24; | |
| 78 | struct igmp_mtrace_rsp rsp[0]; | |
| 79 | } __attribute__((packed)); | |
| 80 | ||
| 81 | #define MTRACE_HDR_SIZE (sizeof(struct igmp_mtrace)) | |
| 82 | #define MTRACE_RSP_SIZE (sizeof(struct igmp_mtrace_rsp)) | |
| 83 | ||
| c5f76fad | 84 | int igmp_mtrace_recv_qry_req(struct gm_sock *igmp, struct ip *ip_hdr, |
| 4d9ad5dc MS |
85 | struct in_addr from, const char *from_str, |
| 86 | char *igmp_msg, int igmp_msg_len); | |
| 87 | ||
| c5f76fad | 88 | int igmp_mtrace_recv_response(struct gm_sock *igmp, struct ip *ip_hdr, |
| 4d9ad5dc MS |
89 | struct in_addr from, const char *from_str, |
| 90 | char *igmp_msg, int igmp_msg_len); | |
| 91 | ||
| 92 | #endif /* PIM_IGMP_MTRACE_H */ |