diff options
| -rw-r--r-- | net/ipv6/mcast.c | 57 |
1 files changed, 33 insertions, 24 deletions
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c index 7ff82b3e54b6..e1e47350784b 100644 --- a/net/ipv6/mcast.c +++ b/net/ipv6/mcast.c @@ -1665,7 +1665,7 @@ static struct sk_buff *add_grhead(struct sk_buff *skb, struct ifmcaddr6 *pmc, skb_tailroom(skb)) : 0) static struct sk_buff *add_grec(struct sk_buff *skb, struct ifmcaddr6 *pmc, - int type, int gdeleted, int sdeleted) + int type, int gdeleted, int sdeleted, int crsend) { struct inet6_dev *idev = pmc->idev; struct net_device *dev = idev->dev; @@ -1757,7 +1757,7 @@ empty_source: if (type == MLD2_ALLOW_NEW_SOURCES || type == MLD2_BLOCK_OLD_SOURCES) return skb; - if (pmc->mca_crcount || isquery) { + if (pmc->mca_crcount || isquery || crsend) { /* make sure we have room for group header */ if (skb && AVAILABLE(skb) < sizeof(struct mld2_grec)) { mld_sendpack(skb); @@ -1789,7 +1789,7 @@ static void mld_send_report(struct inet6_dev *idev, struct ifmcaddr6 *pmc) type = MLD2_MODE_IS_EXCLUDE; else type = MLD2_MODE_IS_INCLUDE; - skb = add_grec(skb, pmc, type, 0, 0); + skb = add_grec(skb, pmc, type, 0, 0, 0); spin_unlock_bh(&pmc->mca_lock); } } else { @@ -1798,7 +1798,7 @@ static void mld_send_report(struct inet6_dev *idev, struct ifmcaddr6 *pmc) type = MLD2_MODE_IS_EXCLUDE; else type = MLD2_MODE_IS_INCLUDE; - skb = add_grec(skb, pmc, type, 0, 0); + skb = add_grec(skb, pmc, type, 0, 0, 0); spin_unlock_bh(&pmc->mca_lock); } read_unlock_bh(&idev->lock); @@ -1843,13 +1843,13 @@ static void mld_send_cr(struct inet6_dev *idev) if (pmc->mca_sfmode == MCAST_INCLUDE) { type = MLD2_BLOCK_OLD_SOURCES; dtype = MLD2_BLOCK_OLD_SOURCES; - skb = add_grec(skb, pmc, type, 1, 0); - skb = add_grec(skb, pmc, dtype, 1, 1); + skb = add_grec(skb, pmc, type, 1, 0, 0); + skb = add_grec(skb, pmc, dtype, 1, 1, 0); } if (pmc->mca_crcount) { if (pmc->mca_sfmode == MCAST_EXCLUDE) { type = MLD2_CHANGE_TO_INCLUDE; - skb = add_grec(skb, pmc, type, 1, 0); + skb = add_grec(skb, pmc, type, 1, 0, 0); } pmc->mca_crcount--; if (pmc->mca_crcount == 0) { @@ -1880,8 +1880,8 @@ static void mld_send_cr(struct inet6_dev *idev) type = MLD2_ALLOW_NEW_SOURCES; dtype = MLD2_BLOCK_OLD_SOURCES; } - skb = add_grec(skb, pmc, type, 0, 0); - skb = add_grec(skb, pmc, dtype, 0, 1); /* deleted sources */ + skb = add_grec(skb, pmc, type, 0, 0, 0); + skb = add_grec(skb, pmc, dtype, 0, 1, 0); /* deleted sources */ /* filter mode changes */ if (pmc->mca_crcount) { @@ -1889,7 +1889,7 @@ static void mld_send_cr(struct inet6_dev *idev) type = MLD2_CHANGE_TO_EXCLUDE; else type = MLD2_CHANGE_TO_INCLUDE; - skb = add_grec(skb, pmc, type, 0, 0); + skb = add_grec(skb, pmc, type, 0, 0, 0); pmc->mca_crcount--; } spin_unlock_bh(&pmc->mca_lock); @@ -1997,27 +1997,36 @@ err_out: goto out; } -static void mld_resend_report(struct inet6_dev *idev) +static void mld_send_initial_cr(struct inet6_dev *idev) { - if (mld_in_v1_mode(idev)) { - struct ifmcaddr6 *mcaddr; - read_lock_bh(&idev->lock); - for (mcaddr = idev->mc_list; mcaddr; mcaddr = mcaddr->next) { - if (!(mcaddr->mca_flags & MAF_NOREPORT)) - igmp6_send(&mcaddr->mca_addr, idev->dev, - ICMPV6_MGM_REPORT); - } - read_unlock_bh(&idev->lock); - } else { - mld_send_report(idev, NULL); + struct sk_buff *skb; + struct ifmcaddr6 *pmc; + int type; + + if (mld_in_v1_mode(idev)) + return; + + skb = NULL; + read_lock_bh(&idev->lock); + for (pmc=idev->mc_list; pmc; pmc=pmc->next) { + spin_lock_bh(&pmc->mca_lock); + if (pmc->mca_sfcount[MCAST_EXCLUDE]) + type = MLD2_CHANGE_TO_EXCLUDE; + else + type = MLD2_CHANGE_TO_INCLUDE; + skb = add_grec(skb, pmc, type, 0, 0, 1); + spin_unlock_bh(&pmc->mca_lock); } + read_unlock_bh(&idev->lock); + if (skb) + mld_sendpack(skb); } void ipv6_mc_dad_complete(struct inet6_dev *idev) { idev->mc_dad_count = idev->mc_qrv; if (idev->mc_dad_count) { - mld_resend_report(idev); + mld_send_initial_cr(idev); idev->mc_dad_count--; if (idev->mc_dad_count) mld_dad_start_timer(idev, idev->mc_maxdelay); @@ -2028,7 +2037,7 @@ static void mld_dad_timer_expire(unsigned long data) { struct inet6_dev *idev = (struct inet6_dev *)data; - mld_resend_report(idev); + mld_send_initial_cr(idev); if (idev->mc_dad_count) { idev->mc_dad_count--; if (idev->mc_dad_count) |