From: Alexey Dobriyan Date: Wed, 13 Jan 2010 15:04:18 +0000 (+0100) Subject: netfilter: ctnetlink: netns support X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9592a5c01e79dbc59eb56fa;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git netfilter: ctnetlink: netns support Signed-off-by: Alexey Dobriyan Signed-off-by: Patrick McHardy --- diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c index d4c5d06677f9..79478dfba27e 100644 --- a/net/netfilter/nf_conntrack_netlink.c +++ b/net/netfilter/nf_conntrack_netlink.c @@ -30,6 +30,7 @@ #include #include +#include #include #include #include @@ -456,6 +457,7 @@ ctnetlink_nlmsg_size(const struct nf_conn *ct) static int ctnetlink_conntrack_event(unsigned int events, struct nf_ct_event *item) { + struct net *net; struct nlmsghdr *nlh; struct nfgenmsg *nfmsg; struct nlattr *nest_parms; @@ -482,7 +484,8 @@ ctnetlink_conntrack_event(unsigned int events, struct nf_ct_event *item) } else return 0; - if (!item->report && !nfnetlink_has_listeners(&init_net, group)) + net = nf_ct_net(ct); + if (!item->report && !nfnetlink_has_listeners(net, group)) return 0; skb = nlmsg_new(ctnetlink_nlmsg_size(ct), GFP_ATOMIC); @@ -559,7 +562,7 @@ ctnetlink_conntrack_event(unsigned int events, struct nf_ct_event *item) rcu_read_unlock(); nlmsg_end(skb, nlh); - err = nfnetlink_send(skb, &init_net, item->pid, group, item->report, + err = nfnetlink_send(skb, net, item->pid, group, item->report, GFP_ATOMIC); if (err == -ENOBUFS || err == -EAGAIN) return -ENOBUFS; @@ -572,7 +575,7 @@ nla_put_failure: nlmsg_failure: kfree_skb(skb); errout: - nfnetlink_set_err(&init_net, 0, group, -ENOBUFS); + nfnetlink_set_err(net, 0, group, -ENOBUFS); return 0; } #endif /* CONFIG_NF_CONNTRACK_EVENTS */ @@ -587,6 +590,7 @@ static int ctnetlink_done(struct netlink_callback *cb) static int ctnetlink_dump_table(struct sk_buff *skb, struct netlink_callback *cb) { + struct net *net = sock_net(skb->sk); struct nf_conn *ct, *last; struct nf_conntrack_tuple_hash *h; struct hlist_nulls_node *n; @@ -597,7 +601,7 @@ ctnetlink_dump_table(struct sk_buff *skb, struct netlink_callback *cb) last = (struct nf_conn *)cb->args[1]; for (; cb->args[0] < nf_conntrack_htable_size; cb->args[0]++) { restart: - hlist_nulls_for_each_entry_rcu(h, n, &init_net.ct.hash[cb->args[0]], + hlist_nulls_for_each_entry_rcu(h, n, &net->ct.hash[cb->args[0]], hnnode) { if (NF_CT_DIRECTION(h) != IP_CT_DIR_ORIGINAL) continue; @@ -769,6 +773,7 @@ ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb, const struct nlmsghdr *nlh, const struct nlattr * const cda[]) { + struct net *net = sock_net(ctnl); struct nf_conntrack_tuple_hash *h; struct nf_conntrack_tuple tuple; struct nf_conn *ct; @@ -782,7 +787,7 @@ ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb, err = ctnetlink_parse_tuple(cda, &tuple, CTA_TUPLE_REPLY, u3); else { /* Flush the whole table */ - nf_conntrack_flush_report(&init_net, + nf_conntrack_flush_report(net, NETLINK_CB(skb).pid, nlmsg_report(nlh)); return 0; @@ -791,7 +796,7 @@ ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb, if (err < 0) return err; - h = nf_conntrack_find_get(&init_net, &tuple); + h = nf_conntrack_find_get(net, &tuple); if (!h) return -ENOENT; @@ -829,6 +834,7 @@ ctnetlink_get_conntrack(struct sock *ctnl, struct sk_buff *skb, const struct nlmsghdr *nlh, const struct nlattr * const cda[]) { + struct net *net = sock_net(ctnl); struct nf_conntrack_tuple_hash *h; struct nf_conntrack_tuple tuple; struct nf_conn *ct; @@ -851,7 +857,7 @@ ctnetlink_get_conntrack(struct sock *ctnl, struct sk_buff *skb, if (err < 0) return err; - h = nf_conntrack_find_get(&init_net, &tuple); + h = nf_conntrack_find_get(net, &tuple); if (!h) return -ENOENT; @@ -1176,7 +1182,8 @@ ctnetlink_change_conntrack(struct nf_conn *ct, } static struct nf_conn * -ctnetlink_create_conntrack(const struct nlattr * const cda[], +ctnetlink_create_conntrack(struct net *net, + const struct nlattr * const cda[], struct nf_conntrack_tuple *otuple, struct nf_conntrack_tuple *rtuple, u8 u3) @@ -1185,7 +1192,7 @@ ctnetlink_create_conntrack(const struct nlattr * const cda[], int err = -EINVAL; struct nf_conntrack_helper *helper; - ct = nf_conntrack_alloc(&init_net, otuple, rtuple, GFP_ATOMIC); + ct = nf_conntrack_alloc(net, otuple, rtuple, GFP_ATOMIC); if (IS_ERR(ct)) return ERR_PTR(-ENOMEM); @@ -1286,7 +1293,7 @@ ctnetlink_create_conntrack(const struct nlattr * const cda[], if (err < 0) goto err2; - master_h = nf_conntrack_find_get(&init_net, &master); + master_h = nf_conntrack_find_get(net, &master); if (master_h == NULL) { err = -ENOENT; goto err2; @@ -1314,6 +1321,7 @@ ctnetlink_new_conntrack(struct sock *ctnl, struct sk_buff *skb, const struct nlmsghdr *nlh, const struct nlattr * const cda[]) { + struct net *net = sock_net(ctnl); struct nf_conntrack_tuple otuple, rtuple; struct nf_conntrack_tuple_hash *h = NULL; struct nfgenmsg *nfmsg = nlmsg_data(nlh); @@ -1334,9 +1342,9 @@ ctnetlink_new_conntrack(struct sock *ctnl, struct sk_buff *skb, spin_lock_bh(&nf_conntrack_lock); if (cda[CTA_TUPLE_ORIG]) - h = __nf_conntrack_find(&init_net, &otuple); + h = __nf_conntrack_find(net, &otuple); else if (cda[CTA_TUPLE_REPLY]) - h = __nf_conntrack_find(&init_net, &rtuple); + h = __nf_conntrack_find(net, &rtuple); if (h == NULL) { err = -ENOENT; @@ -1344,7 +1352,7 @@ ctnetlink_new_conntrack(struct sock *ctnl, struct sk_buff *skb, struct nf_conn *ct; enum ip_conntrack_events events; - ct = ctnetlink_create_conntrack(cda, &otuple, + ct = ctnetlink_create_conntrack(net, cda, &otuple, &rtuple, u3); if (IS_ERR(ct)) { err = PTR_ERR(ct); @@ -1526,9 +1534,10 @@ nla_put_failure: static int ctnetlink_expect_event(unsigned int events, struct nf_exp_event *item) { + struct nf_conntrack_expect *exp = item->exp; + struct net *net = nf_ct_exp_net(exp); struct nlmsghdr *nlh; struct nfgenmsg *nfmsg; - struct nf_conntrack_expect *exp = item->exp; struct sk_buff *skb; unsigned int type; int flags = 0; @@ -1540,7 +1549,7 @@ ctnetlink_expect_event(unsigned int events, struct nf_exp_event *item) return 0; if (!item->report && - !nfnetlink_has_listeners(&init_net, NFNLGRP_CONNTRACK_EXP_NEW)) + !nfnetlink_has_listeners(net, NFNLGRP_CONNTRACK_EXP_NEW)) return 0; skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); @@ -1563,7 +1572,7 @@ ctnetlink_expect_event(unsigned int events, struct nf_exp_event *item) rcu_read_unlock(); nlmsg_end(skb, nlh); - nfnetlink_send(skb, &init_net, item->pid, NFNLGRP_CONNTRACK_EXP_NEW, + nfnetlink_send(skb, net, item->pid, NFNLGRP_CONNTRACK_EXP_NEW, item->report, GFP_ATOMIC); return 0; @@ -1573,7 +1582,7 @@ nla_put_failure: nlmsg_failure: kfree_skb(skb); errout: - nfnetlink_set_err(&init_net, 0, 0, -ENOBUFS); + nfnetlink_set_err(net, 0, 0, -ENOBUFS); return 0; } #endif @@ -1587,7 +1596,7 @@ static int ctnetlink_exp_done(struct netlink_callback *cb) static int ctnetlink_exp_dump_table(struct sk_buff *skb, struct netlink_callback *cb) { - struct net *net = &init_net; + struct net *net = sock_net(skb->sk); struct nf_conntrack_expect *exp, *last; struct nfgenmsg *nfmsg = nlmsg_data(cb->nlh); struct hlist_node *n; @@ -1640,6 +1649,7 @@ ctnetlink_get_expect(struct sock *ctnl, struct sk_buff *skb, const struct nlmsghdr *nlh, const struct nlattr * const cda[]) { + struct net *net = sock_net(ctnl); struct nf_conntrack_tuple tuple; struct nf_conntrack_expect *exp; struct sk_buff *skb2; @@ -1661,7 +1671,7 @@ ctnetlink_get_expect(struct sock *ctnl, struct sk_buff *skb, if (err < 0) return err; - exp = nf_ct_expect_find_get(&init_net, &tuple); + exp = nf_ct_expect_find_get(net, &tuple); if (!exp) return -ENOENT; @@ -1701,6 +1711,7 @@ ctnetlink_del_expect(struct sock *ctnl, struct sk_buff *skb, const struct nlmsghdr *nlh, const struct nlattr * const cda[]) { + struct net *net = sock_net(ctnl); struct nf_conntrack_expect *exp; struct nf_conntrack_tuple tuple; struct nf_conntrack_helper *h; @@ -1717,7 +1728,7 @@ ctnetlink_del_expect(struct sock *ctnl, struct sk_buff *skb, return err; /* bump usage count to 2 */ - exp = nf_ct_expect_find_get(&init_net, &tuple); + exp = nf_ct_expect_find_get(net, &tuple); if (!exp) return -ENOENT; @@ -1747,7 +1758,7 @@ ctnetlink_del_expect(struct sock *ctnl, struct sk_buff *skb, } for (i = 0; i < nf_ct_expect_hsize; i++) { hlist_for_each_entry_safe(exp, n, next, - &init_net.ct.expect_hash[i], + &net->ct.expect_hash[i], hnode) { m_help = nfct_help(exp->master); if (m_help->helper == h @@ -1763,7 +1774,7 @@ ctnetlink_del_expect(struct sock *ctnl, struct sk_buff *skb, spin_lock_bh(&nf_conntrack_lock); for (i = 0; i < nf_ct_expect_hsize; i++) { hlist_for_each_entry_safe(exp, n, next, - &init_net.ct.expect_hash[i], + &net->ct.expect_hash[i], hnode) { if (del_timer(&exp->timeout)) { nf_ct_unlink_expect(exp); @@ -1784,7 +1795,8 @@ ctnetlink_change_expect(struct nf_conntrack_expect *x, } static int -ctnetlink_create_expect(const struct nlattr * const cda[], u_int8_t u3, +ctnetlink_create_expect(struct net *net, const struct nlattr * const cda[], + u_int8_t u3, u32 pid, int report) { struct nf_conntrack_tuple tuple, mask, master_tuple; @@ -1806,7 +1818,7 @@ ctnetlink_create_expect(const struct nlattr * const cda[], u_int8_t u3, return err; /* Look for master conntrack of this expectation */ - h = nf_conntrack_find_get(&init_net, &master_tuple); + h = nf_conntrack_find_get(net, &master_tuple); if (!h) return -ENOENT; ct = nf_ct_tuplehash_to_ctrack(h); @@ -1846,6 +1858,7 @@ ctnetlink_new_expect(struct sock *ctnl, struct sk_buff *skb, const struct nlmsghdr *nlh, const struct nlattr * const cda[]) { + struct net *net = sock_net(ctnl); struct nf_conntrack_tuple tuple; struct nf_conntrack_expect *exp; struct nfgenmsg *nfmsg = nlmsg_data(nlh); @@ -1862,13 +1875,13 @@ ctnetlink_new_expect(struct sock *ctnl, struct sk_buff *skb, return err; spin_lock_bh(&nf_conntrack_lock); - exp = __nf_ct_expect_find(&init_net, &tuple); + exp = __nf_ct_expect_find(net, &tuple); if (!exp) { spin_unlock_bh(&nf_conntrack_lock); err = -ENOENT; if (nlh->nlmsg_flags & NLM_F_CREATE) { - err = ctnetlink_create_expect(cda, + err = ctnetlink_create_expect(net, cda, u3, NETLINK_CB(skb).pid, nlmsg_report(nlh));