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1 | #ifndef _UAPI__LINUX_MROUTE6_H |
2 | #define _UAPI__LINUX_MROUTE6_H | |
3 | ||
4 | #include <linux/types.h> | |
5 | #include <linux/sockios.h> | |
6 | ||
7 | /* | |
8 | * Based on the MROUTING 3.5 defines primarily to keep | |
9 | * source compatibility with BSD. | |
10 | * | |
11 | * See the pim6sd code for the original history. | |
12 | * | |
13 | * Protocol Independent Multicast (PIM) data structures included | |
14 | * Carlos Picoto (cap@di.fc.ul.pt) | |
15 | * | |
16 | */ | |
17 | ||
18 | #define MRT6_BASE 200 | |
19 | #define MRT6_INIT (MRT6_BASE) /* Activate the kernel mroute code */ | |
20 | #define MRT6_DONE (MRT6_BASE+1) /* Shutdown the kernel mroute */ | |
21 | #define MRT6_ADD_MIF (MRT6_BASE+2) /* Add a virtual interface */ | |
22 | #define MRT6_DEL_MIF (MRT6_BASE+3) /* Delete a virtual interface */ | |
23 | #define MRT6_ADD_MFC (MRT6_BASE+4) /* Add a multicast forwarding entry */ | |
24 | #define MRT6_DEL_MFC (MRT6_BASE+5) /* Delete a multicast forwarding entry */ | |
25 | #define MRT6_VERSION (MRT6_BASE+6) /* Get the kernel multicast version */ | |
26 | #define MRT6_ASSERT (MRT6_BASE+7) /* Activate PIM assert mode */ | |
27 | #define MRT6_PIM (MRT6_BASE+8) /* enable PIM code */ | |
28 | #define MRT6_TABLE (MRT6_BASE+9) /* Specify mroute table ID */ | |
29 | ||
30 | #define SIOCGETMIFCNT_IN6 SIOCPROTOPRIVATE /* IP protocol privates */ | |
31 | #define SIOCGETSGCNT_IN6 (SIOCPROTOPRIVATE+1) | |
32 | #define SIOCGETRPF (SIOCPROTOPRIVATE+2) | |
33 | ||
34 | #define MAXMIFS 32 | |
35 | typedef unsigned long mifbitmap_t; /* User mode code depends on this lot */ | |
36 | typedef unsigned short mifi_t; | |
37 | #define ALL_MIFS ((mifi_t)(-1)) | |
38 | ||
39 | #ifndef IF_SETSIZE | |
40 | #define IF_SETSIZE 256 | |
41 | #endif | |
42 | ||
43 | typedef __u32 if_mask; | |
44 | #define NIFBITS (sizeof(if_mask) * 8) /* bits per mask */ | |
45 | ||
46 | #if !defined(__KERNEL__) | |
47 | #if !defined(DIV_ROUND_UP) | |
48 | #define DIV_ROUND_UP(x,y) (((x) + ((y) - 1)) / (y)) | |
49 | #endif | |
50 | #endif | |
51 | ||
52 | typedef struct if_set { | |
53 | if_mask ifs_bits[DIV_ROUND_UP(IF_SETSIZE, NIFBITS)]; | |
54 | } if_set; | |
55 | ||
56 | #define IF_SET(n, p) ((p)->ifs_bits[(n)/NIFBITS] |= (1 << ((n) % NIFBITS))) | |
57 | #define IF_CLR(n, p) ((p)->ifs_bits[(n)/NIFBITS] &= ~(1 << ((n) % NIFBITS))) | |
58 | #define IF_ISSET(n, p) ((p)->ifs_bits[(n)/NIFBITS] & (1 << ((n) % NIFBITS))) | |
59 | #define IF_COPY(f, t) bcopy(f, t, sizeof(*(f))) | |
60 | #define IF_ZERO(p) bzero(p, sizeof(*(p))) | |
61 | ||
62 | /* | |
63 | * Passed by mrouted for an MRT_ADD_MIF - again we use the | |
64 | * mrouted 3.6 structures for compatibility | |
65 | */ | |
66 | ||
67 | struct mif6ctl { | |
68 | mifi_t mif6c_mifi; /* Index of MIF */ | |
69 | unsigned char mif6c_flags; /* MIFF_ flags */ | |
70 | unsigned char vifc_threshold; /* ttl limit */ | |
71 | __u16 mif6c_pifi; /* the index of the physical IF */ | |
72 | unsigned int vifc_rate_limit; /* Rate limiter values (NI) */ | |
73 | }; | |
74 | ||
75 | #define MIFF_REGISTER 0x1 /* register vif */ | |
76 | ||
77 | /* | |
78 | * Cache manipulation structures for mrouted and PIMd | |
79 | */ | |
80 | ||
81 | struct mf6cctl { | |
82 | struct sockaddr_in6 mf6cc_origin; /* Origin of mcast */ | |
83 | struct sockaddr_in6 mf6cc_mcastgrp; /* Group in question */ | |
84 | mifi_t mf6cc_parent; /* Where it arrived */ | |
85 | struct if_set mf6cc_ifset; /* Where it is going */ | |
86 | }; | |
87 | ||
88 | /* | |
89 | * Group count retrieval for pim6sd | |
90 | */ | |
91 | ||
92 | struct sioc_sg_req6 { | |
93 | struct sockaddr_in6 src; | |
94 | struct sockaddr_in6 grp; | |
95 | unsigned long pktcnt; | |
96 | unsigned long bytecnt; | |
97 | unsigned long wrong_if; | |
98 | }; | |
99 | ||
100 | /* | |
101 | * To get vif packet counts | |
102 | */ | |
103 | ||
104 | struct sioc_mif_req6 { | |
105 | mifi_t mifi; /* Which iface */ | |
106 | unsigned long icount; /* In packets */ | |
107 | unsigned long ocount; /* Out packets */ | |
108 | unsigned long ibytes; /* In bytes */ | |
109 | unsigned long obytes; /* Out bytes */ | |
110 | }; | |
111 | ||
112 | /* | |
113 | * That's all usermode folks | |
114 | */ | |
115 | ||
116 | ||
117 | ||
118 | /* | |
119 | * Structure used to communicate from kernel to multicast router. | |
120 | * We'll overlay the structure onto an MLD header (not an IPv6 heder like igmpmsg{} | |
121 | * used for IPv4 implementation). This is because this structure will be passed via an | |
122 | * IPv6 raw socket, on which an application will only receiver the payload i.e the data after | |
123 | * the IPv6 header and all the extension headers. (See section 3 of RFC 3542) | |
124 | */ | |
125 | ||
126 | struct mrt6msg { | |
127 | #define MRT6MSG_NOCACHE 1 | |
128 | #define MRT6MSG_WRONGMIF 2 | |
129 | #define MRT6MSG_WHOLEPKT 3 /* used for use level encap */ | |
130 | __u8 im6_mbz; /* must be zero */ | |
131 | __u8 im6_msgtype; /* what type of message */ | |
132 | __u16 im6_mif; /* mif rec'd on */ | |
133 | __u32 im6_pad; /* padding for 64 bit arch */ | |
134 | struct in6_addr im6_src, im6_dst; | |
135 | }; | |
136 | ||
137 | #endif /* _UAPI__LINUX_MROUTE6_H */ |