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104 lines
3.0 KiB
C
104 lines
3.0 KiB
C
/*
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* Multicast traceroute for FRRouting
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* Copyright (C) 2017 Mladen Sablic
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; see the file COPYING; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef PIM_IGMP_MTRACE_H
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#define PIM_IGMP_MTRACE_H
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#include <zebra.h>
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#include "pim_igmp.h"
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#define MTRACE_MAX_HOPS (255)
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#define MTRACE_UNKNOWN_COUNT (0xffffffff)
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enum mtrace_fwd_code {
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MTRACE_FWD_CODE_NO_ERROR = 0x00,
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MTRACE_FWD_CODE_WRONG_IF = 0x01,
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MTRACE_FWD_CODE_PRUNE_SENT = 0x02,
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MTRACE_FWD_CODE_PRUNE_RCVD = 0x03,
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MTRACE_FWD_CODE_SCOPED = 0x04,
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MTRACE_FWD_CODE_NO_ROUTE = 0x05,
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MTRACE_FWD_CODE_WRONG_LAST_HOP = 0x06,
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MTRACE_FWD_CODE_NOT_FORWARDING = 0x07,
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MTRACE_FWD_CODE_REACHED_RP = 0x08,
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MTRACE_FWD_CODE_RPF_IF = 0x09,
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MTRACE_FWD_CODE_NO_MULTICAST = 0x0A,
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MTRACE_FWD_CODE_INFO_HIDDEN = 0x0B,
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MTRACE_FWD_CODE_NO_SPACE = 0x81,
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MTRACE_FWD_CODE_OLD_ROUTER = 0x82,
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MTRACE_FWD_CODE_ADMIN_PROHIB = 0x83
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};
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enum mtrace_rtg_proto {
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MTRACE_RTG_PROTO_DVMRP = 1,
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MTRACE_RTG_PROTO_MOSPF = 2,
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MTRACE_RTG_PROTO_PIM = 3,
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MTRACE_RTG_PROTO_CBT = 4,
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MTRACE_RTG_PROTO_PIM_SPECIAL = 5,
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MTRACE_RTG_PROTO_PIM_STATIC = 6,
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MTRACE_RTG_PROTO_DVMRP_STATIC = 7,
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MTRACE_RTG_PROTO_PIM_MBGP = 8,
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MTRACE_RTG_PROTO_CBT_SPECIAL = 9,
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MTRACE_RTG_PROTO_CBT_STATIC = 10,
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MTRACE_RTG_PROTO_PIM_ASSERT = 11,
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};
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struct igmp_mtrace_rsp {
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uint32_t arrival;
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struct in_addr incoming;
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struct in_addr outgoing;
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struct in_addr prev_hop;
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uint32_t in_count;
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uint32_t out_count;
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uint32_t total;
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uint32_t rtg_proto : 8;
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uint32_t fwd_ttl : 8;
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/* little endian order for next three fields */
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uint32_t src_mask : 6;
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uint32_t s : 1;
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uint32_t mbz : 1;
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uint32_t fwd_code : 8;
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} __attribute__((packed));
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struct igmp_mtrace {
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uint8_t type;
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uint8_t hops;
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uint16_t checksum;
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struct in_addr grp_addr;
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struct in_addr src_addr;
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struct in_addr dst_addr;
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struct in_addr rsp_addr;
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uint32_t rsp_ttl : 8;
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uint32_t qry_id : 24;
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struct igmp_mtrace_rsp rsp[0];
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} __attribute__((packed));
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#define MTRACE_HDR_SIZE (sizeof(struct igmp_mtrace))
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#define MTRACE_RSP_SIZE (sizeof(struct igmp_mtrace_rsp))
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int igmp_mtrace_recv_qry_req(struct igmp_sock *igmp, struct ip *ip_hdr,
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struct in_addr from, const char *from_str,
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char *igmp_msg, int igmp_msg_len);
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int igmp_mtrace_recv_response(struct igmp_sock *igmp, struct ip *ip_hdr,
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struct in_addr from, const char *from_str,
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char *igmp_msg, int igmp_msg_len);
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#endif /* PIM_IGMP_MTRACE_H */
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