Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 219 insertions, 0 deletions

diff --git a/include/linux/igmp.h b/include/linux/igmp.h
new file mode 100644
index 000000000000..390e760a96d3
--- /dev/null
+++ b/include/linux/igmp.h
@@ -0,0 +1,219 @@
+/*
+ *      Linux NET3:     Internet Group Management Protocol  [IGMP]
+ *
+ *      Authors:
+ *              Alan Cox <Alan.Cox@linux.org>
+ *
+ *      Extended to talk the BSD extended IGMP protocol of mrouted 3.6
+ *
+ *
+ *      This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _LINUX_IGMP_H
+#define _LINUX_IGMP_H
+
+#include <asm/byteorder.h>
+
+/*
+ *      IGMP protocol structures
+ */
+
+/*
+ *      Header in on cable format
+ */
+
+struct igmphdr
+{
+        __u8 type;
+        __u8 code;              /* For newer IGMP */
+        __u16 csum;
+        __u32 group;
+};
+
+/* V3 group record types [grec_type] */
+#define IGMPV3_MODE_IS_INCLUDE          1
+#define IGMPV3_MODE_IS_EXCLUDE          2
+#define IGMPV3_CHANGE_TO_INCLUDE        3
+#define IGMPV3_CHANGE_TO_EXCLUDE        4
+#define IGMPV3_ALLOW_NEW_SOURCES        5
+#define IGMPV3_BLOCK_OLD_SOURCES        6
+
+struct igmpv3_grec {
+        __u8    grec_type;
+        __u8    grec_auxwords;
+        __u16   grec_nsrcs;
+        __u32   grec_mca;
+        __u32   grec_src[0];
+};
+
+struct igmpv3_report {
+        __u8 type;
+        __u8 resv1;
+        __u16 csum;
+        __u16 resv2;
+        __u16 ngrec;
+        struct igmpv3_grec grec[0];
+};
+
+struct igmpv3_query {
+        __u8 type;
+        __u8 code;
+        __u16 csum;
+        __u32 group;
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+        __u8 qrv:3,
+             suppress:1,
+             resv:4;
+#elif defined(__BIG_ENDIAN_BITFIELD)
+        __u8 resv:4,
+             suppress:1,
+             qrv:3;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+        __u8 qqic;
+        __u16 nsrcs;
+        __u32 srcs[0];
+};
+
+#define IGMP_HOST_MEMBERSHIP_QUERY      0x11    /* From RFC1112 */
+#define IGMP_HOST_MEMBERSHIP_REPORT     0x12    /* Ditto */
+#define IGMP_DVMRP                      0x13    /* DVMRP routing */
+#define IGMP_PIM                        0x14    /* PIM routing */
+#define IGMP_TRACE                      0x15
+#define IGMPV2_HOST_MEMBERSHIP_REPORT   0x16    /* V2 version of 0x11 */
+#define IGMP_HOST_LEAVE_MESSAGE         0x17
+#define IGMPV3_HOST_MEMBERSHIP_REPORT   0x22    /* V3 version of 0x11 */
+
+#define IGMP_MTRACE_RESP                0x1e
+#define IGMP_MTRACE                     0x1f
+
+
+/*
+ *      Use the BSD names for these for compatibility
+ */
+
+#define IGMP_DELAYING_MEMBER            0x01
+#define IGMP_IDLE_MEMBER                0x02
+#define IGMP_LAZY_MEMBER                0x03
+#define IGMP_SLEEPING_MEMBER            0x04
+#define IGMP_AWAKENING_MEMBER           0x05
+
+#define IGMP_MINLEN                     8
+
+#define IGMP_MAX_HOST_REPORT_DELAY      10      /* max delay for response to */
+                                                /* query (in seconds)   */
+
+#define IGMP_TIMER_SCALE                10      /* denotes that the igmphdr->timer field */
+                                                /* specifies time in 10th of seconds     */
+
+#define IGMP_AGE_THRESHOLD              400     /* If this host don't hear any IGMP V1  */
+                                                /* message in this period of time,      */
+                                                /* revert to IGMP v2 router.            */
+
+#define IGMP_ALL_HOSTS          htonl(0xE0000001L)
+#define IGMP_ALL_ROUTER         htonl(0xE0000002L)
+#define IGMPV3_ALL_MCR          htonl(0xE0000016L)
+#define IGMP_LOCAL_GROUP        htonl(0xE0000000L)
+#define IGMP_LOCAL_GROUP_MASK   htonl(0xFFFFFF00L)
+
+/*
+ * struct for keeping the multicast list in
+ */
+
+#ifdef __KERNEL__
+#include <linux/skbuff.h>
+#include <linux/in.h>
+
+struct ip_sf_socklist
+{
+        unsigned int            sl_max;
+        unsigned int            sl_count;
+        __u32                   sl_addr[0];
+};
+
+#define IP_SFLSIZE(count)       (sizeof(struct ip_sf_socklist) + \
+        (count) * sizeof(__u32))
+
+#define IP_SFBLOCK      10      /* allocate this many at once */
+
+/* ip_mc_socklist is real list now. Speed is not argument;
+   this list never used in fast path code
+ */
+
+struct ip_mc_socklist
+{
+        struct ip_mc_socklist   *next;
+        int                     count;
+        struct ip_mreqn         multi;
+        unsigned int            sfmode;         /* MCAST_{INCLUDE,EXCLUDE} */
+        struct ip_sf_socklist   *sflist;
+};
+
+struct ip_sf_list
+{
+        struct ip_sf_list       *sf_next;
+        __u32                   sf_inaddr;
+        unsigned long           sf_count[2];    /* include/exclude counts */
+        unsigned char           sf_gsresp;      /* include in g & s response? */
+        unsigned char           sf_oldin;       /* change state */
+        unsigned char           sf_crcount;     /* retrans. left to send */
+};
+
+struct ip_mc_list
+{
+        struct in_device        *interface;
+        unsigned long           multiaddr;
+        struct ip_sf_list       *sources;
+        struct ip_sf_list       *tomb;
+        unsigned int            sfmode;
+        unsigned long           sfcount[2];
+        struct ip_mc_list       *next;
+        struct timer_list       timer;
+        int                     users;
+        atomic_t                refcnt;
+        spinlock_t              lock;
+        char                    tm_running;
+        char                    reporter;
+        char                    unsolicit_count;
+        char                    loaded;
+        unsigned char           gsquery;        /* check source marks? */
+        unsigned char           crcount;
+};
+
+/* V3 exponential field decoding */
+#define IGMPV3_MASK(value, nb) ((nb)>=32 ? (value) : ((1<<(nb))-1) & (value))
+#define IGMPV3_EXP(thresh, nbmant, nbexp, value) \
+        ((value) < (thresh) ? (value) : \
+        ((IGMPV3_MASK(value, nbmant) | (1<<(nbmant+nbexp))) << \
+         (IGMPV3_MASK((value) >> (nbmant), nbexp) + (nbexp))))
+
+#define IGMPV3_QQIC(value) IGMPV3_EXP(0x80, 4, 3, value)
+#define IGMPV3_MRC(value) IGMPV3_EXP(0x80, 4, 3, value)
+
+extern int ip_check_mc(struct in_device *dev, u32 mc_addr, u32 src_addr, u16 proto);
+extern int igmp_rcv(struct sk_buff *);
+extern int ip_mc_join_group(struct sock *sk, struct ip_mreqn *imr);
+extern int ip_mc_leave_group(struct sock *sk, struct ip_mreqn *imr);
+extern void ip_mc_drop_socket(struct sock *sk);
+extern int ip_mc_source(int add, int omode, struct sock *sk,
+                struct ip_mreq_source *mreqs, int ifindex);
+extern int ip_mc_msfilter(struct sock *sk, struct ip_msfilter *msf,int ifindex);
+extern int ip_mc_msfget(struct sock *sk, struct ip_msfilter *msf,
+                struct ip_msfilter __user *optval, int __user *optlen);
+extern int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf,
+                struct group_filter __user *optval, int __user *optlen);
+extern int ip_mc_sf_allow(struct sock *sk, u32 local, u32 rmt, int dif);
+extern void ip_mr_init(void);
+extern void ip_mc_init_dev(struct in_device *);
+extern void ip_mc_destroy_dev(struct in_device *);
+extern void ip_mc_up(struct in_device *);
+extern void ip_mc_down(struct in_device *);
+extern void ip_mc_dec_group(struct in_device *in_dev, u32 addr);
+extern void ip_mc_inc_group(struct in_device *in_dev, u32 addr);
+#endif
+#endif