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001: #ifndef __LINUX_MROUTE6_H
002: #define __LINUX_MROUTE6_H
003: 
004: #include <linux/types.h>
005: #include <linux/sockios.h>
006: 
007: /*
008:  *      Based on the MROUTING 3.5 defines primarily to keep
009:  *      source compatibility with BSD.
010:  *
011:  *      See the pim6sd code for the original history.
012:  *
013:  *      Protocol Independent Multicast (PIM) data structures included
014:  *      Carlos Picoto (cap@di.fc.ul.pt)
015:  *
016:  */
017: 
018: #define MRT6_BASE       200
019: #define MRT6_INIT       (MRT6_BASE)     /* Activate the kernel mroute code      */
020: #define MRT6_DONE       (MRT6_BASE+1)   /* Shutdown the kernel mroute           */
021: #define MRT6_ADD_MIF    (MRT6_BASE+2)   /* Add a virtual interface              */
022: #define MRT6_DEL_MIF    (MRT6_BASE+3)   /* Delete a virtual interface           */
023: #define MRT6_ADD_MFC    (MRT6_BASE+4)   /* Add a multicast forwarding entry     */
024: #define MRT6_DEL_MFC    (MRT6_BASE+5)   /* Delete a multicast forwarding entry  */
025: #define MRT6_VERSION    (MRT6_BASE+6)   /* Get the kernel multicast version     */
026: #define MRT6_ASSERT     (MRT6_BASE+7)   /* Activate PIM assert mode             */
027: #define MRT6_PIM        (MRT6_BASE+8)   /* enable PIM code                      */
028: #define MRT6_TABLE      (MRT6_BASE+9)   /* Specify mroute table ID              */
029: 
030: #define SIOCGETMIFCNT_IN6       SIOCPROTOPRIVATE        /* IP protocol privates */
031: #define SIOCGETSGCNT_IN6        (SIOCPROTOPRIVATE+1)
032: #define SIOCGETRPF      (SIOCPROTOPRIVATE+2)
033: 
034: #define MAXMIFS         32
035: typedef unsigned long mifbitmap_t;      /* User mode code depends on this lot */
036: typedef unsigned short mifi_t;
037: #define ALL_MIFS        ((mifi_t)(-1))
038: 
039: #ifndef IF_SETSIZE
040: #define IF_SETSIZE      256
041: #endif
042: 
043: typedef __u32           if_mask;
044: #define NIFBITS (sizeof(if_mask) * 8)        /* bits per mask */
045: 
046: #if !defined(__KERNEL__) && !defined(DIV_ROUND_UP)
047: #define DIV_ROUND_UP(x,y)       (((x) + ((y) - 1)) / (y))
048: #endif
049: 
050: typedef struct if_set {
051:         if_mask ifs_bits[DIV_ROUND_UP(IF_SETSIZE, NIFBITS)];
052: } if_set;
053: 
054: #define IF_SET(n, p)    ((p)->ifs_bits[(n)/NIFBITS] |= (1 << ((n) % NIFBITS)))
055: #define IF_CLR(n, p)    ((p)->ifs_bits[(n)/NIFBITS] &= ~(1 << ((n) % NIFBITS)))
056: #define IF_ISSET(n, p)  ((p)->ifs_bits[(n)/NIFBITS] & (1 << ((n) % NIFBITS)))
057: #define IF_COPY(f, t)   bcopy(f, t, sizeof(*(f)))
058: #define IF_ZERO(p)      bzero(p, sizeof(*(p)))
059: 
060: /*
061:  *      Passed by mrouted for an MRT_ADD_MIF - again we use the
062:  *      mrouted 3.6 structures for compatibility
063:  */
064: 
065: struct mif6ctl {
066:         mifi_t  mif6c_mifi;             /* Index of MIF */
067:         unsigned char mif6c_flags;      /* MIFF_ flags */
068:         unsigned char vifc_threshold;   /* ttl limit */
069:         __u16    mif6c_pifi;            /* the index of the physical IF */
070:         unsigned int vifc_rate_limit;   /* Rate limiter values (NI) */
071: };
072: 
073: #define MIFF_REGISTER   0x1     /* register vif */
074: 
075: /*
076:  *      Cache manipulation structures for mrouted and PIMd
077:  */
078: 
079: struct mf6cctl {
080:         struct sockaddr_in6 mf6cc_origin;               /* Origin of mcast      */
081:         struct sockaddr_in6 mf6cc_mcastgrp;             /* Group in question    */
082:         mifi_t  mf6cc_parent;                   /* Where it arrived     */
083:         struct if_set mf6cc_ifset;              /* Where it is going */
084: };
085: 
086: /*
087:  *      Group count retrieval for pim6sd
088:  */
089: 
090: struct sioc_sg_req6 {
091:         struct sockaddr_in6 src;
092:         struct sockaddr_in6 grp;
093:         unsigned long pktcnt;
094:         unsigned long bytecnt;
095:         unsigned long wrong_if;
096: };
097: 
098: /*
099:  *      To get vif packet counts
100:  */
101: 
102: struct sioc_mif_req6 {
103:         mifi_t  mifi;           /* Which iface */
104:         unsigned long icount;   /* In packets */
105:         unsigned long ocount;   /* Out packets */
106:         unsigned long ibytes;   /* In bytes */
107:         unsigned long obytes;   /* Out bytes */
108: };
109: 
110: /*
111:  *      That's all usermode folks
112:  */
113: 
114: 
115: 
116: /*
117:  * Structure used to communicate from kernel to multicast router.
118:  * We'll overlay the structure onto an MLD header (not an IPv6 heder like igmpmsg{}
119:  * used for IPv4 implementation). This is because this structure will be passed via an
120:  * IPv6 raw socket, on which an application will only receiver the payload i.e the data after
121:  * the IPv6 header and all the extension headers. (See section 3 of RFC 3542)
122:  */
123: 
124: struct mrt6msg {
125: #define MRT6MSG_NOCACHE         1
126: #define MRT6MSG_WRONGMIF        2
127: #define MRT6MSG_WHOLEPKT        3               /* used for use level encap */
128:         __u8            im6_mbz;                /* must be zero            */
129:         __u8            im6_msgtype;            /* what type of message    */
130:         __u16           im6_mif;                /* mif rec'd on            */
131:         __u32           im6_pad;                /* padding for 64 bit arch */
132:         struct in6_addr im6_src, im6_dst;
133: };
134: 
135: #endif
136: 

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