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: #if defined(HAVE_LINUX_MROUTE_H)
44: #include <linux/mroute.h>
45: #else
46: /*
47: Below: from <linux/mroute.h>
48: */
49:
50: #ifndef MAXVIFS
51: #define MAXVIFS (32)
52: #endif
53:
54: #ifndef SIOCGETVIFCNT
55: #define SIOCGETVIFCNT SIOCPROTOPRIVATE /* IP protocol privates */
56: #define SIOCGETSGCNT (SIOCPROTOPRIVATE+1)
57: #define SIOCGETRPF (SIOCPROTOPRIVATE+2)
58: #endif
59:
60: #ifndef MRT_INIT
61: #define MRT_BASE 200
62: #define MRT_INIT (MRT_BASE) /* Activate the kernel mroute code */
63: #define MRT_DONE (MRT_BASE+1) /* Shutdown the kernel mroute */
64: #define MRT_ADD_VIF (MRT_BASE+2) /* Add a virtual interface */
65: #define MRT_DEL_VIF (MRT_BASE+3) /* Delete a virtual interface */
66: #define MRT_ADD_MFC (MRT_BASE+4) /* Add a multicast forwarding entry */
67: #define MRT_DEL_MFC (MRT_BASE+5) /* Delete a multicast forwarding entry */
68: #define MRT_VERSION (MRT_BASE+6) /* Get the kernel multicast version */
69: #define MRT_ASSERT (MRT_BASE+7) /* Activate PIM assert mode */
70: #define MRT_PIM (MRT_BASE+8) /* enable PIM code */
71: #endif
72:
73: #ifndef HAVE_VIFI_T
74: typedef unsigned short vifi_t;
75: #endif
76:
77: #ifndef HAVE_STRUCT_VIFCTL
78: struct vifctl {
79: vifi_t vifc_vifi; /* Index of VIF */
80: unsigned char vifc_flags; /* VIFF_ flags */
81: unsigned char vifc_threshold; /* ttl limit */
82: unsigned int vifc_rate_limit; /* Rate limiter values (NI) */
83: struct in_addr vifc_lcl_addr; /* Our address */
84: struct in_addr vifc_rmt_addr; /* IPIP tunnel addr */
85: };
86: #endif
87:
88: #ifndef HAVE_STRUCT_MFCCTL
89: struct mfcctl {
90: struct in_addr mfcc_origin; /* Origin of mcast */
91: struct in_addr mfcc_mcastgrp; /* Group in question */
92: vifi_t mfcc_parent; /* Where it arrived */
93: unsigned char mfcc_ttls[MAXVIFS]; /* Where it is going */
94: unsigned int mfcc_pkt_cnt; /* pkt count for src-grp */
95: unsigned int mfcc_byte_cnt;
96: unsigned int mfcc_wrong_if;
97: int mfcc_expire;
98: };
99: #endif
100:
101: /*
102: * Group count retrieval for mrouted
103: */
104: /*
105: struct sioc_sg_req sgreq;
106: memset(&sgreq, 0, sizeof(sgreq));
107: memcpy(&sgreq.src, &source_addr, sizeof(sgreq.src));
108: memcpy(&sgreq.grp, &group_addr, sizeof(sgreq.grp));
109: ioctl(mrouter_s4, SIOCGETSGCNT, &sgreq);
110: */
111: #ifndef HAVE_STRUCT_SIOC_SG_REQ
112: struct sioc_sg_req {
113: struct in_addr src;
114: struct in_addr grp;
115: unsigned long pktcnt;
116: unsigned long bytecnt;
117: unsigned long wrong_if;
118: };
119: #endif
120:
121: /*
122: * To get vif packet counts
123: */
124: /*
125: struct sioc_vif_req vreq;
126: memset(&vreq, 0, sizeof(vreq));
127: vreq.vifi = vif_index;
128: ioctl(mrouter_s4, SIOCGETVIFCNT, &vreq);
129: */
130: #ifndef HAVE_STRUCT_SIOC_VIF_REQ
131: struct sioc_vif_req {
132: vifi_t vifi; /* Which iface */
133: unsigned long icount; /* In packets */
134: unsigned long ocount; /* Out packets */
135: unsigned long ibytes; /* In bytes */
136: unsigned long obytes; /* Out bytes */
137: };
138: #endif
139:
140: /*
141: * Pseudo messages used by mrouted
142: */
143: #ifndef IGMPMSG_NOCACHE
144: #define IGMPMSG_NOCACHE 1 /* Kern cache fill request to mrouted */
145: #define IGMPMSG_WRONGVIF 2 /* For PIM assert processing (unused) */
146: #define IGMPMSG_WHOLEPKT 3 /* For PIM Register processing */
147: #endif
148:
149: #ifndef HAVE_STRUCT_IGMPMSG
150: struct igmpmsg
151: {
152: uint32_t unused1,unused2;
153: unsigned char im_msgtype; /* What is this */
154: unsigned char im_mbz; /* Must be zero */
155: unsigned char im_vif; /* Interface (this ought to be a vifi_t!) */
156: unsigned char unused3;
157: struct in_addr im_src,im_dst;
158: };
159: #endif
160: #endif
161:
162: /*
163: Above: from <linux/mroute.h>
164: */
165:
166: int pim_mroute_socket_enable(void);
167: int pim_mroute_socket_disable(void);
168:
169: int pim_mroute_add_vif(int vif_index, struct in_addr ifaddr);
170: int pim_mroute_del_vif(int vif_index);
171:
172: int pim_mroute_add(struct mfcctl *mc);
173: int pim_mroute_del(struct mfcctl *mc);
174:
175: int pim_mroute_msg(int fd, const char *buf, int buf_size);
176:
177: #endif /* PIM_MROUTE_H */
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