mirror of https://gitee.com/openkylin/linux.git
[NETNS][IPV6] ndisc - make ndisc handle multiple network namespaces
Make ndisc handle multiple network namespaces: Remove references to init_net, add network namespace parameters and add pernet_operations for ndisc Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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8a3edd800d
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@ -541,7 +541,7 @@ static void ndisc_send_na(struct net_device *dev, struct neighbour *neigh,
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};
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/* for anycast or proxy, solicited_addr != src_addr */
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ifp = ipv6_get_ifaddr(&init_net, solicited_addr, dev, 1);
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ifp = ipv6_get_ifaddr(dev->nd_net, solicited_addr, dev, 1);
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if (ifp) {
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src_addr = solicited_addr;
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if (ifp->flags & IFA_F_OPTIMISTIC)
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@ -601,7 +601,7 @@ void ndisc_send_rs(struct net_device *dev, struct in6_addr *saddr,
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* suppress the inclusion of the sllao.
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*/
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if (send_sllao) {
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struct inet6_ifaddr *ifp = ipv6_get_ifaddr(&init_net, saddr,
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struct inet6_ifaddr *ifp = ipv6_get_ifaddr(dev->nd_net, saddr,
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dev, 1);
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if (ifp) {
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if (ifp->flags & IFA_F_OPTIMISTIC) {
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@ -639,7 +639,7 @@ static void ndisc_solicit(struct neighbour *neigh, struct sk_buff *skb)
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struct in6_addr *target = (struct in6_addr *)&neigh->primary_key;
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int probes = atomic_read(&neigh->probes);
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if (skb && ipv6_chk_addr(&init_net, &ipv6_hdr(skb)->saddr, dev, 1))
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if (skb && ipv6_chk_addr(dev->nd_net, &ipv6_hdr(skb)->saddr, dev, 1))
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saddr = &ipv6_hdr(skb)->saddr;
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if ((probes -= neigh->parms->ucast_probes) < 0) {
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@ -727,7 +727,8 @@ static void ndisc_recv_ns(struct sk_buff *skb)
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inc = ipv6_addr_is_multicast(daddr);
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if ((ifp = ipv6_get_ifaddr(&init_net, &msg->target, dev, 1)) != NULL) {
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ifp = ipv6_get_ifaddr(dev->nd_net, &msg->target, dev, 1);
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if (ifp) {
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if (ifp->flags & (IFA_F_TENTATIVE|IFA_F_OPTIMISTIC)) {
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if (dad) {
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@ -775,7 +776,7 @@ static void ndisc_recv_ns(struct sk_buff *skb)
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if (ipv6_chk_acast_addr(dev, &msg->target) ||
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(idev->cnf.forwarding &&
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(ipv6_devconf.proxy_ndp || idev->cnf.proxy_ndp) &&
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(pneigh = pneigh_lookup(&nd_tbl, &init_net,
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(pneigh = pneigh_lookup(&nd_tbl, dev->nd_net,
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&msg->target, dev, 0)) != NULL)) {
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if (!(NEIGH_CB(skb)->flags & LOCALLY_ENQUEUED) &&
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skb->pkt_type != PACKET_HOST &&
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@ -885,7 +886,8 @@ static void ndisc_recv_na(struct sk_buff *skb)
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return;
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}
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}
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if ((ifp = ipv6_get_ifaddr(&init_net, &msg->target, dev, 1))) {
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ifp = ipv6_get_ifaddr(dev->nd_net, &msg->target, dev, 1);
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if (ifp) {
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if (ifp->flags & IFA_F_TENTATIVE) {
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addrconf_dad_failure(ifp);
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return;
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@ -916,7 +918,7 @@ static void ndisc_recv_na(struct sk_buff *skb)
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*/
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if (lladdr && !memcmp(lladdr, dev->dev_addr, dev->addr_len) &&
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ipv6_devconf.forwarding && ipv6_devconf.proxy_ndp &&
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pneigh_lookup(&nd_tbl, &init_net, &msg->target, dev, 0)) {
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pneigh_lookup(&nd_tbl, dev->nd_net, &msg->target, dev, 0)) {
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/* XXX: idev->cnf.prixy_ndp */
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goto out;
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}
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@ -1006,6 +1008,7 @@ static void ndisc_ra_useropt(struct sk_buff *ra, struct nd_opt_hdr *opt)
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struct sk_buff *skb;
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struct nlmsghdr *nlh;
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struct nduseroptmsg *ndmsg;
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struct net *net = ra->dev->nd_net;
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int err;
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int base_size = NLMSG_ALIGN(sizeof(struct nduseroptmsg)
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+ (opt->nd_opt_len << 3));
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@ -1035,7 +1038,7 @@ static void ndisc_ra_useropt(struct sk_buff *ra, struct nd_opt_hdr *opt)
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&ipv6_hdr(ra)->saddr);
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nlmsg_end(skb, nlh);
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err = rtnl_notify(skb, &init_net, 0, RTNLGRP_ND_USEROPT, NULL,
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err = rtnl_notify(skb, net, 0, RTNLGRP_ND_USEROPT, NULL,
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GFP_ATOMIC);
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if (err < 0)
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goto errout;
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@ -1046,7 +1049,7 @@ static void ndisc_ra_useropt(struct sk_buff *ra, struct nd_opt_hdr *opt)
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nlmsg_free(skb);
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err = -EMSGSIZE;
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errout:
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rtnl_set_sk_err(&init_net, RTNLGRP_ND_USEROPT, err);
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rtnl_set_sk_err(net, RTNLGRP_ND_USEROPT, err);
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}
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static void ndisc_router_discovery(struct sk_buff *skb)
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@ -1600,9 +1603,6 @@ static int ndisc_netdev_event(struct notifier_block *this, unsigned long event,
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struct net_device *dev = ptr;
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struct net *net = dev->nd_net;
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if (dev->nd_net != &init_net)
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return NOTIFY_DONE;
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switch (event) {
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case NETDEV_CHANGEADDR:
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neigh_changeaddr(&nd_tbl, dev);
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