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| author | Benjamin Thery <benjamin.thery@bull.net> | 2009-01-22 04:56:21 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-01-22 13:57:40 -0800 |
| commit | 6c5143dbcfe50ac722965dc7d096abbeeec8bb33 (patch) | |
| tree | b9a78f7a700ec6a82ed05cd46e65f7c9ba2cbf60 | |
| parent | 6f9374a9342e896c68df7cf7c0b039ab5cca994c (diff) | |
| download | linux-6c5143dbcfe50ac722965dc7d096abbeeec8bb33.tar.gz | |
netns: ipmr: declare reg_vif_num per-namespace
Preliminary work to make IPv4 multicast routing netns-aware. Declare variable 'reg_vif_num' per-namespace, move into struct netns_ipv4. At the moment, this variable is only referenced in init_net. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/netns/ipv4.h | 3 | ||||
| -rw-r--r-- | net/ipv4/ipmr.c | 22 |
2 files changed, 15 insertions, 10 deletions
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h index 8451722782bb..2eb3814d6258 100644 --- a/include/net/netns/ipv4.h +++ b/include/net/netns/ipv4.h @@ -63,6 +63,9 @@ struct netns_ipv4 { atomic_t cache_resolve_queue_len; int mroute_do_assert; int mroute_do_pim; +#if defined(CONFIG_IP_PIMSM_V1) || defined(CONFIG_IP_PIMSM_V2) + int mroute_reg_vif_num; +#endif #endif }; #endif diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index d6a28acc0683..346e67b50d6c 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -197,14 +197,12 @@ failure: #ifdef CONFIG_IP_PIMSM -static int reg_vif_num = -1; - static int reg_vif_xmit(struct sk_buff *skb, struct net_device *dev) { read_lock(&mrt_lock); dev->stats.tx_bytes += skb->len; dev->stats.tx_packets++; - ipmr_cache_report(skb, reg_vif_num, IGMPMSG_WHOLEPKT); + ipmr_cache_report(skb, init_net.ipv4.mroute_reg_vif_num, IGMPMSG_WHOLEPKT); read_unlock(&mrt_lock); kfree_skb(skb); return 0; @@ -292,8 +290,8 @@ static int vif_delete(int vifi, int notify) } #ifdef CONFIG_IP_PIMSM - if (vifi == reg_vif_num) - reg_vif_num = -1; + if (vifi == init_net.ipv4.mroute_reg_vif_num) + init_net.ipv4.mroute_reg_vif_num = -1; #endif if (vifi+1 == init_net.ipv4.maxvif) { @@ -439,7 +437,7 @@ static int vif_add(struct vifctl *vifc, int mrtsock) * Special Purpose VIF in PIM * All the packets will be sent to the daemon */ - if (reg_vif_num >= 0) + if (init_net.ipv4.mroute_reg_vif_num >= 0) return -EADDRINUSE; dev = ipmr_reg_vif(); if (!dev) @@ -505,7 +503,7 @@ static int vif_add(struct vifctl *vifc, int mrtsock) v->dev = dev; #ifdef CONFIG_IP_PIMSM if (v->flags&VIFF_REGISTER) - reg_vif_num = vifi; + init_net.ipv4.mroute_reg_vif_num = vifi; #endif if (vifi+1 > init_net.ipv4.maxvif) init_net.ipv4.maxvif = vifi+1; @@ -623,7 +621,7 @@ static int ipmr_cache_report(struct sk_buff *pkt, vifi_t vifi, int assert) memcpy(msg, skb_network_header(pkt), sizeof(struct iphdr)); msg->im_msgtype = IGMPMSG_WHOLEPKT; msg->im_mbz = 0; - msg->im_vif = reg_vif_num; + msg->im_vif = init_net.ipv4.mroute_reg_vif_num; ip_hdr(skb)->ihl = sizeof(struct iphdr) >> 2; ip_hdr(skb)->tot_len = htons(ntohs(ip_hdr(pkt)->tot_len) + sizeof(struct iphdr)); @@ -1506,8 +1504,8 @@ static int __pim_rcv(struct sk_buff *skb, unsigned int pimlen) return 1; read_lock(&mrt_lock); - if (reg_vif_num >= 0) - reg_dev = init_net.ipv4.vif_table[reg_vif_num].dev; + if (init_net.ipv4.mroute_reg_vif_num >= 0) + reg_dev = init_net.ipv4.vif_table[init_net.ipv4.mroute_reg_vif_num].dev; if (reg_dev) dev_hold(reg_dev); read_unlock(&mrt_lock); @@ -1940,6 +1938,10 @@ static int __net_init ipmr_net_init(struct net *net) err = -ENOMEM; goto fail_mfc_cache; } + +#ifdef CONFIG_IP_PIMSM + net->ipv4.mroute_reg_vif_num = -1; +#endif return 0; fail_mfc_cache: |