projects / mirror_frr.git / blame
| Commit | Line | Data |
|---|---|---|
| 4d9ad5dc MS |
1 | /* |
| 2 | * Multicast traceroute for FRRouting | |
| 3 | * Copyright (C) 2017 Mladen Sablic | |
| 4 | * | |
| 5 | * This program is free software; you can redistribute it and/or modify | |
| 6 | * it under the terms of the GNU General Public License as published by | |
| 7 | * the Free Software Foundation; either version 2 of the License, or | |
| 8 | * (at your option) any later version. | |
| 9 | * | |
| 10 | * This program is distributed in the hope that it will be useful, but | |
| 11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | * General Public License for more details. | |
| 14 | * | |
| 15 | * You should have received a copy of the GNU General Public License along | |
| 16 | * with this program; see the file COPYING; if not, write to the Free Software | |
| 17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
| 18 | */ | |
| 19 | ||
| 20 | #ifndef PIM_IGMP_MTRACE_H | |
| 21 | #define PIM_IGMP_MTRACE_H | |
| 22 | ||
| 23 | #include <zebra.h> | |
| 24 | ||
| 25 | #include "pim_igmp.h" | |
| 26 | ||
| 27 | #define MTRACE_MAX_HOPS (255) | |
| 28 | #define MTRACE_UNKNOWN_COUNT (0xffffffff) | |
| 29 | ||
| 30 | enum mtrace_fwd_code { | |
| 31 | MTRACE_FWD_CODE_NO_ERROR = 0x00, | |
| 32 | MTRACE_FWD_CODE_WRONG_IF = 0x01, | |
| 33 | MTRACE_FWD_CODE_PRUNE_SENT = 0x02, | |
| 34 | MTRACE_FWD_CODE_PRUNE_RCVD = 0x03, | |
| 35 | MTRACE_FWD_CODE_SCOPED = 0x04, | |
| 36 | MTRACE_FWD_CODE_NO_ROUTE = 0x05, | |
| 37 | MTRACE_FWD_CODE_WRONG_LAST_HOP = 0x06, | |
| 38 | MTRACE_FWD_CODE_NOT_FORWARDING = 0x07, | |
| 39 | MTRACE_FWD_CODE_REACHED_RP = 0x08, | |
| 40 | MTRACE_FWD_CODE_RPF_IF = 0x09, | |
| 41 | MTRACE_FWD_CODE_NO_MULTICAST = 0x0A, | |
| 42 | MTRACE_FWD_CODE_INFO_HIDDEN = 0x0B, | |
| 43 | MTRACE_FWD_CODE_NO_SPACE = 0x81, | |
| 44 | MTRACE_FWD_CODE_OLD_ROUTER = 0x82, | |
| 45 | MTRACE_FWD_CODE_ADMIN_PROHIB = 0x83 | |
| 46 | }; | |
| 47 | ||
| 48 | enum mtrace_rtg_proto { | |
| 49 | MTRACE_RTG_PROTO_DVMRP = 1, | |
| 50 | MTRACE_RTG_PROTO_MOSPF = 2, | |
| 51 | MTRACE_RTG_PROTO_PIM = 3, | |
| 52 | MTRACE_RTG_PROTO_CBT = 4, | |
| 53 | MTRACE_RTG_PROTO_PIM_SPECIAL = 5, | |
| 54 | MTRACE_RTG_PROTO_PIM_STATIC = 6, | |
| 55 | MTRACE_RTG_PROTO_DVMRP_STATIC = 7, | |
| 56 | MTRACE_RTG_PROTO_PIM_MBGP = 8, | |
| 57 | MTRACE_RTG_PROTO_CBT_SPECIAL = 9, | |
| 58 | MTRACE_RTG_PROTO_CBT_STATIC = 10, | |
| 59 | MTRACE_RTG_PROTO_PIM_ASSERT = 11, | |
| 60 | }; | |
| 61 | ||
| 62 | struct igmp_mtrace_rsp { | |
| 63 | uint32_t arrival; | |
| 64 | struct in_addr incoming; | |
| 65 | struct in_addr outgoing; | |
| 66 | struct in_addr prev_hop; | |
| 67 | uint32_t in_count; | |
| 68 | uint32_t out_count; | |
| 69 | uint32_t total; | |
| 70 | uint32_t rtg_proto : 8; | |
| 71 | uint32_t fwd_ttl : 8; | |
| 72 | /* little endian order for next three fields */ | |
| 73 | uint32_t src_mask : 6; | |
| 74 | uint32_t s : 1; | |
| 75 | uint32_t mbz : 1; | |
| 76 | uint32_t fwd_code : 8; | |
| 77 | } __attribute__((packed)); | |
| 78 | ||
| 79 | struct igmp_mtrace { | |
| 80 | uint8_t type; | |
| 81 | uint8_t hops; | |
| 82 | uint16_t checksum; | |
| 83 | struct in_addr grp_addr; | |
| 84 | struct in_addr src_addr; | |
| 85 | struct in_addr dst_addr; | |
| 86 | struct in_addr rsp_addr; | |
| 87 | uint32_t rsp_ttl : 8; | |
| 88 | uint32_t qry_id : 24; | |
| 89 | struct igmp_mtrace_rsp rsp[0]; | |
| 90 | } __attribute__((packed)); | |
| 91 | ||
| 92 | #define MTRACE_HDR_SIZE (sizeof(struct igmp_mtrace)) | |
| 93 | #define MTRACE_RSP_SIZE (sizeof(struct igmp_mtrace_rsp)) | |
| 94 | ||
| 95 | int igmp_mtrace_recv_qry_req(struct igmp_sock *igmp, struct ip *ip_hdr, | |
| 96 | struct in_addr from, const char *from_str, | |
| 97 | char *igmp_msg, int igmp_msg_len); | |
| 98 | ||
| 99 | int igmp_mtrace_recv_response(struct igmp_sock *igmp, struct ip *ip_hdr, | |
| 100 | struct in_addr from, const char *from_str, | |
| 101 | char *igmp_msg, int igmp_msg_len); | |
| 102 | ||
| 103 | #endif /* PIM_IGMP_MTRACE_H */ |