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authorPatrick McHardy <kaber@trash.net>2010-05-10 18:39:28 +0200
committerPatrick McHardy <kaber@trash.net>2010-05-10 18:39:28 +0200
commit1e4b1057121bc756b91758a434b504d2010f6088 (patch)
treeb016cf2c728289c7e36d9e4e488f30ab0bd0ae6e /include/net/mld.h
parent3b254c54ec46eb022cb26ee6ab37fae23f5f7d6a (diff)
parent3ee943728fff536edaf8f59faa58aaa1aa7366e3 (diff)
downloadop-kernel-dev-1e4b1057121bc756b91758a434b504d2010f6088.zip
op-kernel-dev-1e4b1057121bc756b91758a434b504d2010f6088.tar.gz
Merge branch 'master' of /repos/git/net-next-2.6
Conflicts: net/bridge/br_device.c net/bridge/br_forward.c Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'include/net/mld.h')
-rw-r--r--include/net/mld.h75
1 files changed, 75 insertions, 0 deletions
diff --git a/include/net/mld.h b/include/net/mld.h
new file mode 100644
index 0000000..467143c
--- /dev/null
+++ b/include/net/mld.h
@@ -0,0 +1,75 @@
+#ifndef LINUX_MLD_H
+#define LINUX_MLD_H
+
+#include <linux/in6.h>
+#include <linux/icmpv6.h>
+
+/* MLDv1 Query/Report/Done */
+struct mld_msg {
+ struct icmp6hdr mld_hdr;
+ struct in6_addr mld_mca;
+};
+
+#define mld_type mld_hdr.icmp6_type
+#define mld_code mld_hdr.icmp6_code
+#define mld_cksum mld_hdr.icmp6_cksum
+#define mld_maxdelay mld_hdr.icmp6_maxdelay
+#define mld_reserved mld_hdr.icmp6_dataun.un_data16[1]
+
+/* Multicast Listener Discovery version 2 headers */
+/* MLDv2 Report */
+struct mld2_grec {
+ __u8 grec_type;
+ __u8 grec_auxwords;
+ __be16 grec_nsrcs;
+ struct in6_addr grec_mca;
+ struct in6_addr grec_src[0];
+};
+
+struct mld2_report {
+ struct icmp6hdr mld2r_hdr;
+ struct mld2_grec mld2r_grec[0];
+};
+
+#define mld2r_type mld2r_hdr.icmp6_type
+#define mld2r_resv1 mld2r_hdr.icmp6_code
+#define mld2r_cksum mld2r_hdr.icmp6_cksum
+#define mld2r_resv2 mld2r_hdr.icmp6_dataun.un_data16[0]
+#define mld2r_ngrec mld2r_hdr.icmp6_dataun.un_data16[1]
+
+/* MLDv2 Query */
+struct mld2_query {
+ struct icmp6hdr mld2q_hdr;
+ struct in6_addr mld2q_mca;
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+ __u8 mld2q_qrv:3,
+ mld2q_suppress:1,
+ mld2q_resv2:4;
+#elif defined(__BIG_ENDIAN_BITFIELD)
+ __u8 mld2q_resv2:4,
+ mld2q_suppress:1,
+ mld2q_qrv:3;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+ __u8 mld2q_qqic;
+ __be16 mld2q_nsrcs;
+ struct in6_addr mld2q_srcs[0];
+};
+
+#define mld2q_type mld2q_hdr.icmp6_type
+#define mld2q_code mld2q_hdr.icmp6_code
+#define mld2q_cksum mld2q_hdr.icmp6_cksum
+#define mld2q_mrc mld2q_hdr.icmp6_maxdelay
+#define mld2q_resv1 mld2q_hdr.icmp6_dataun.un_data16[1]
+
+/* Max Response Code */
+#define MLDV2_MASK(value, nb) ((nb)>=32 ? (value) : ((1<<(nb))-1) & (value))
+#define MLDV2_EXP(thresh, nbmant, nbexp, value) \
+ ((value) < (thresh) ? (value) : \
+ ((MLDV2_MASK(value, nbmant) | (1<<(nbmant))) << \
+ (MLDV2_MASK((value) >> (nbmant), nbexp) + (nbexp))))
+
+#define MLDV2_MRC(value) MLDV2_EXP(0x8000, 12, 3, value)
+
+#endif
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