1/*
2  PIM for Quagga
3  Copyright (C) 2008  Everton da Silva Marques
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
16  along with this program; see the file COPYING; if not, write to the
17  Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
18  MA 02110-1301 USA
19
20  $QuaggaId: $Format:%an, %ai, %h$ $
21*/
22
23#ifndef PIM_MROUTE_H
24#define PIM_MROUTE_H
25
26/*
27  For msghdr.msg_control in Solaris 10
28*/
29#ifndef _XPG4_2
30#define _XPG4_2
31#endif
32#ifndef __EXTENSIONS__
33#define __EXTENSIONS__
34#endif
35
36#include <netinet/in.h>
37#ifdef HAVE_NETINET_IP_MROUTE_H
38#include <netinet/ip_mroute.h>
39#endif
40
41#define PIM_MROUTE_MIN_TTL (1)
42
43/*
44  Below: from <linux/mroute.h>
45*/
46
47#ifndef MAXVIFS
48#define MAXVIFS (32)
49#endif
50
51#ifndef SIOCGETVIFCNT
52#define SIOCGETVIFCNT   SIOCPROTOPRIVATE        /* IP protocol privates */
53#define SIOCGETSGCNT    (SIOCPROTOPRIVATE+1)
54#define SIOCGETRPF      (SIOCPROTOPRIVATE+2)
55#endif
56
57#ifndef MRT_INIT
58#define MRT_BASE     200
59#define MRT_INIT     (MRT_BASE)      /* Activate the kernel mroute code      */
60#define MRT_DONE     (MRT_BASE+1)    /* Shutdown the kernel mroute           */
61#define MRT_ADD_VIF  (MRT_BASE+2)    /* Add a virtual interface              */
62#define MRT_DEL_VIF  (MRT_BASE+3)    /* Delete a virtual interface           */
63#define MRT_ADD_MFC  (MRT_BASE+4)    /* Add a multicast forwarding entry     */
64#define MRT_DEL_MFC  (MRT_BASE+5)    /* Delete a multicast forwarding entry  */
65#define MRT_VERSION  (MRT_BASE+6)    /* Get the kernel multicast version     */
66#define MRT_ASSERT   (MRT_BASE+7)    /* Activate PIM assert mode             */
67#define MRT_PIM      (MRT_BASE+8)    /* enable PIM code      */
68#endif
69
70#ifndef HAVE_VIFI_T
71typedef unsigned short vifi_t;
72#endif
73
74#ifndef HAVE_STRUCT_VIFCTL
75struct vifctl {
76	vifi_t	vifc_vifi;		/* Index of VIF */
77	unsigned char vifc_flags;	/* VIFF_ flags */
78	unsigned char vifc_threshold;	/* ttl limit */
79	unsigned int vifc_rate_limit;	/* Rate limiter values (NI) */
80	struct in_addr vifc_lcl_addr;	/* Our address */
81	struct in_addr vifc_rmt_addr;	/* IPIP tunnel addr */
82};
83#endif
84
85#ifndef HAVE_STRUCT_MFCCTL
86struct mfcctl {
87  struct in_addr mfcc_origin;             /* Origin of mcast      */
88  struct in_addr mfcc_mcastgrp;           /* Group in question    */
89  vifi_t         mfcc_parent;             /* Where it arrived     */
90  unsigned char  mfcc_ttls[MAXVIFS];      /* Where it is going    */
91  unsigned int   mfcc_pkt_cnt;            /* pkt count for src-grp */
92  unsigned int   mfcc_byte_cnt;
93  unsigned int   mfcc_wrong_if;
94  int            mfcc_expire;
95};
96#endif
97
98/*
99 *      Group count retrieval for mrouted
100 */
101/*
102  struct sioc_sg_req sgreq;
103  memset(&sgreq, 0, sizeof(sgreq));
104  memcpy(&sgreq.src, &source_addr, sizeof(sgreq.src));
105  memcpy(&sgreq.grp, &group_addr, sizeof(sgreq.grp));
106  ioctl(mrouter_s4, SIOCGETSGCNT, &sgreq);
107 */
108#ifndef HAVE_STRUCT_SIOC_SG_REQ
109struct sioc_sg_req {
110  struct in_addr src;
111  struct in_addr grp;
112  unsigned long pktcnt;
113  unsigned long bytecnt;
114  unsigned long wrong_if;
115};
116#endif
117
118/*
119 *      To get vif packet counts
120 */
121/*
122  struct sioc_vif_req vreq;
123  memset(&vreq, 0, sizeof(vreq));
124  vreq.vifi = vif_index;
125  ioctl(mrouter_s4, SIOCGETVIFCNT, &vreq);
126 */
127#ifndef HAVE_STRUCT_SIOC_VIF_REQ
128struct sioc_vif_req {
129  vifi_t  vifi;           /* Which iface */
130  unsigned long icount;   /* In packets */
131  unsigned long ocount;   /* Out packets */
132  unsigned long ibytes;   /* In bytes */
133  unsigned long obytes;   /* Out bytes */
134};
135#endif
136
137/*
138 *      Pseudo messages used by mrouted
139 */
140#ifndef IGMPMSG_NOCACHE
141#define IGMPMSG_NOCACHE         1               /* Kern cache fill request to mrouted */
142#define IGMPMSG_WRONGVIF        2               /* For PIM assert processing (unused) */
143#define IGMPMSG_WHOLEPKT        3               /* For PIM Register processing */
144#endif
145
146#ifndef HAVE_STRUCT_IGMPMSG
147struct igmpmsg
148{
149  uint32_t unused1,unused2;
150  unsigned char im_msgtype;               /* What is this */
151  unsigned char im_mbz;                   /* Must be zero */
152  unsigned char im_vif;                   /* Interface (this ought to be a vifi_t!) */
153  unsigned char unused3;
154  struct in_addr im_src,im_dst;
155};
156#endif
157
158/*
159  Above: from <linux/mroute.h>
160*/
161
162int pim_mroute_socket_enable(void);
163int pim_mroute_socket_disable(void);
164
165int pim_mroute_add_vif(int vif_index, struct in_addr ifaddr);
166int pim_mroute_del_vif(int vif_index);
167
168int pim_mroute_add(struct mfcctl *mc);
169int pim_mroute_del(struct mfcctl *mc);
170
171int pim_mroute_msg(int fd, const char *buf, int buf_size);
172
173#endif /* PIM_MROUTE_H */
174