diff options
Diffstat (limited to 'net/ipv4/netfilter/ip_conntrack_netlink.c')
-rw-r--r-- | net/ipv4/netfilter/ip_conntrack_netlink.c | 118 |
1 files changed, 59 insertions, 59 deletions
diff --git a/net/ipv4/netfilter/ip_conntrack_netlink.c b/net/ipv4/netfilter/ip_conntrack_netlink.c index 7f70b0886b83..9228b76ccd9a 100644 --- a/net/ipv4/netfilter/ip_conntrack_netlink.c +++ b/net/ipv4/netfilter/ip_conntrack_netlink.c @@ -6,10 +6,10 @@ * (C) 2003 by Patrick Mchardy <kaber@trash.net> * (C) 2005-2006 by Pablo Neira Ayuso <pablo@eurodev.net> * - * I've reworked this stuff to use attributes instead of conntrack + * I've reworked this stuff to use attributes instead of conntrack * structures. 5.44 am. I need more tea. --pablo 05/07/11. * - * Initial connection tracking via netlink development funded and + * Initial connection tracking via netlink development funded and * generally made possible by Network Robots, Inc. (www.networkrobots.com) * * Further development of this code funded by Astaro AG (http://www.astaro.com) @@ -45,7 +45,7 @@ MODULE_LICENSE("GPL"); static char __initdata version[] = "0.90"; static inline int -ctnetlink_dump_tuples_proto(struct sk_buff *skb, +ctnetlink_dump_tuples_proto(struct sk_buff *skb, const struct ip_conntrack_tuple *tuple, struct ip_conntrack_protocol *proto) { @@ -56,7 +56,7 @@ ctnetlink_dump_tuples_proto(struct sk_buff *skb, if (likely(proto->tuple_to_nfattr)) ret = proto->tuple_to_nfattr(skb, tuple); - + NFA_NEST_END(skb, nest_parms); return ret; @@ -70,7 +70,7 @@ ctnetlink_dump_tuples_ip(struct sk_buff *skb, const struct ip_conntrack_tuple *tuple) { struct nfattr *nest_parms = NFA_NEST(skb, CTA_TUPLE_IP); - + NFA_PUT(skb, CTA_IP_V4_SRC, sizeof(__be32), &tuple->src.ip); NFA_PUT(skb, CTA_IP_V4_DST, sizeof(__be32), &tuple->dst.ip); @@ -121,7 +121,7 @@ ctnetlink_dump_timeout(struct sk_buff *skb, const struct ip_conntrack *ct) timeout = 0; else timeout = htonl(timeout_l / HZ); - + NFA_PUT(skb, CTA_TIMEOUT, sizeof(timeout), &timeout); return 0; @@ -141,7 +141,7 @@ ctnetlink_dump_protoinfo(struct sk_buff *skb, const struct ip_conntrack *ct) ip_conntrack_proto_put(proto); return 0; } - + nest_proto = NFA_NEST(skb, CTA_PROTOINFO); ret = proto->to_nfattr(skb, nest_proto, ct); @@ -164,7 +164,7 @@ ctnetlink_dump_helpinfo(struct sk_buff *skb, const struct ip_conntrack *ct) if (!ct->helper) return 0; - + nest_helper = NFA_NEST(skb, CTA_HELP); NFA_PUT(skb, CTA_HELP_NAME, strlen(ct->helper->name), ct->helper->name); @@ -236,7 +236,7 @@ static inline int ctnetlink_dump_use(struct sk_buff *skb, const struct ip_conntrack *ct) { __be32 use = htonl(atomic_read(&ct->ct_general.use)); - + NFA_PUT(skb, CTA_USE, sizeof(__be32), &use); return 0; @@ -248,7 +248,7 @@ nfattr_failure: static int ctnetlink_fill_info(struct sk_buff *skb, u32 pid, u32 seq, - int event, int nowait, + int event, int nowait, const struct ip_conntrack *ct) { struct nlmsghdr *nlh; @@ -271,7 +271,7 @@ ctnetlink_fill_info(struct sk_buff *skb, u32 pid, u32 seq, if (ctnetlink_dump_tuples(skb, tuple(ct, IP_CT_DIR_ORIGINAL)) < 0) goto nfattr_failure; NFA_NEST_END(skb, nest_parms); - + nest_parms = NFA_NEST(skb, CTA_TUPLE_REPLY); if (ctnetlink_dump_tuples(skb, tuple(ct, IP_CT_DIR_REPLY)) < 0) goto nfattr_failure; @@ -299,7 +299,7 @@ nfattr_failure: #ifdef CONFIG_IP_NF_CONNTRACK_EVENTS static int ctnetlink_conntrack_event(struct notifier_block *this, - unsigned long events, void *ptr) + unsigned long events, void *ptr) { struct nlmsghdr *nlh; struct nfgenmsg *nfmsg; @@ -324,7 +324,7 @@ static int ctnetlink_conntrack_event(struct notifier_block *this, } else if (events & (IPCT_STATUS | IPCT_PROTOINFO)) { type = IPCTNL_MSG_CT_NEW; group = NFNLGRP_CONNTRACK_UPDATE; - } else + } else return NOTIFY_DONE; if (!nfnetlink_has_listeners(group)) @@ -349,7 +349,7 @@ static int ctnetlink_conntrack_event(struct notifier_block *this, if (ctnetlink_dump_tuples(skb, tuple(ct, IP_CT_DIR_ORIGINAL)) < 0) goto nfattr_failure; NFA_NEST_END(skb, nest_parms); - + nest_parms = NFA_NEST(skb, CTA_TUPLE_REPLY); if (ctnetlink_dump_tuples(skb, tuple(ct, IP_CT_DIR_REPLY)) < 0) goto nfattr_failure; @@ -368,16 +368,16 @@ static int ctnetlink_conntrack_event(struct notifier_block *this, if (events & IPCT_PROTOINFO && ctnetlink_dump_protoinfo(skb, ct) < 0) - goto nfattr_failure; + goto nfattr_failure; if ((events & IPCT_HELPER || ct->helper) && ctnetlink_dump_helpinfo(skb, ct) < 0) - goto nfattr_failure; + goto nfattr_failure; #ifdef CONFIG_IP_NF_CONNTRACK_MARK if ((events & IPCT_MARK || ct->mark) && ctnetlink_dump_mark(skb, ct) < 0) - goto nfattr_failure; + goto nfattr_failure; #endif if (events & IPCT_COUNTER_FILLING && @@ -426,7 +426,7 @@ restart: cb->args[1] = 0; } if (ctnetlink_fill_info(skb, NETLINK_CB(cb->skb).pid, - cb->nlh->nlmsg_seq, + cb->nlh->nlmsg_seq, IPCTNL_MSG_CT_NEW, 1, ct) < 0) { nf_conntrack_get(&ct->ct_general); @@ -488,7 +488,7 @@ static const size_t cta_min_proto[CTA_PROTO_MAX] = { }; static inline int -ctnetlink_parse_tuple_proto(struct nfattr *attr, +ctnetlink_parse_tuple_proto(struct nfattr *attr, struct ip_conntrack_tuple *tuple) { struct nfattr *tb[CTA_PROTO_MAX]; @@ -508,9 +508,9 @@ ctnetlink_parse_tuple_proto(struct nfattr *attr, if (likely(proto->nfattr_to_tuple)) ret = proto->nfattr_to_tuple(tb, tuple); - + ip_conntrack_proto_put(proto); - + return ret; } @@ -595,7 +595,7 @@ ctnetlink_parse_nat(struct nfattr *nat, int err; memset(range, 0, sizeof(*range)); - + nfattr_parse_nested(tb, CTA_NAT_MAX, nat); if (nfattr_bad_size(tb, CTA_NAT_MAX, cta_min_nat)) @@ -647,7 +647,7 @@ static const size_t cta_min[CTA_MAX] = { }; static int -ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb, +ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb, struct nlmsghdr *nlh, struct nfattr *cda[], int *errp) { struct ip_conntrack_tuple_hash *h; @@ -676,14 +676,14 @@ ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb, return -ENOENT; ct = tuplehash_to_ctrack(h); - + if (cda[CTA_ID-1]) { u_int32_t id = ntohl(*(__be32 *)NFA_DATA(cda[CTA_ID-1])); if (ct->id != id) { ip_conntrack_put(ct); return -ENOENT; } - } + } if (del_timer(&ct->timeout)) ct->timeout.function((unsigned long)ct); @@ -693,7 +693,7 @@ ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb, } static int -ctnetlink_get_conntrack(struct sock *ctnl, struct sk_buff *skb, +ctnetlink_get_conntrack(struct sock *ctnl, struct sk_buff *skb, struct nlmsghdr *nlh, struct nfattr *cda[], int *errp) { struct ip_conntrack_tuple_hash *h; @@ -714,8 +714,8 @@ ctnetlink_get_conntrack(struct sock *ctnl, struct sk_buff *skb, return -ENOTSUPP; #endif if ((*errp = netlink_dump_start(ctnl, skb, nlh, - ctnetlink_dump_table, - ctnetlink_done)) != 0) + ctnetlink_dump_table, + ctnetlink_done)) != 0) return -EINVAL; rlen = NLMSG_ALIGN(nlh->nlmsg_len); @@ -751,7 +751,7 @@ ctnetlink_get_conntrack(struct sock *ctnl, struct sk_buff *skb, return -ENOMEM; } - err = ctnetlink_fill_info(skb2, NETLINK_CB(skb).pid, nlh->nlmsg_seq, + err = ctnetlink_fill_info(skb2, NETLINK_CB(skb).pid, nlh->nlmsg_seq, IPCTNL_MSG_CT_NEW, 1, ct); ip_conntrack_put(ct); if (err <= 0) @@ -779,12 +779,12 @@ ctnetlink_change_status(struct ip_conntrack *ct, struct nfattr *cda[]) if (d & (IPS_EXPECTED|IPS_CONFIRMED|IPS_DYING)) /* unchangeable */ return -EINVAL; - + if (d & IPS_SEEN_REPLY && !(status & IPS_SEEN_REPLY)) /* SEEN_REPLY bit can only be set */ return -EINVAL; - + if (d & IPS_ASSURED && !(status & IPS_ASSURED)) /* ASSURED bit can only be set */ return -EINVAL; @@ -857,7 +857,7 @@ ctnetlink_change_helper(struct ip_conntrack *ct, struct nfattr *cda[]) memset(&ct->help, 0, sizeof(ct->help)); } } - + ct->helper = helper; return 0; @@ -867,7 +867,7 @@ static inline int ctnetlink_change_timeout(struct ip_conntrack *ct, struct nfattr *cda[]) { u_int32_t timeout = ntohl(*(__be32 *)NFA_DATA(cda[CTA_TIMEOUT-1])); - + if (!del_timer(&ct->timeout)) return -ETIME; @@ -891,7 +891,7 @@ ctnetlink_change_protoinfo(struct ip_conntrack *ct, struct nfattr *cda[]) if (proto->from_nfattr) err = proto->from_nfattr(tb, ct); - ip_conntrack_proto_put(proto); + ip_conntrack_proto_put(proto); return err; } @@ -934,7 +934,7 @@ ctnetlink_change_conntrack(struct ip_conntrack *ct, struct nfattr *cda[]) } static int -ctnetlink_create_conntrack(struct nfattr *cda[], +ctnetlink_create_conntrack(struct nfattr *cda[], struct ip_conntrack_tuple *otuple, struct ip_conntrack_tuple *rtuple) { @@ -943,7 +943,7 @@ ctnetlink_create_conntrack(struct nfattr *cda[], ct = ip_conntrack_alloc(otuple, rtuple); if (ct == NULL || IS_ERR(ct)) - return -ENOMEM; + return -ENOMEM; if (!cda[CTA_TIMEOUT-1]) goto err; @@ -979,13 +979,13 @@ ctnetlink_create_conntrack(struct nfattr *cda[], return 0; -err: +err: ip_conntrack_free(ct); return err; } -static int -ctnetlink_new_conntrack(struct sock *ctnl, struct sk_buff *skb, +static int +ctnetlink_new_conntrack(struct sock *ctnl, struct sk_buff *skb, struct nlmsghdr *nlh, struct nfattr *cda[], int *errp) { struct ip_conntrack_tuple otuple, rtuple; @@ -1039,9 +1039,9 @@ out_unlock: return err; } -/*********************************************************************** - * EXPECT - ***********************************************************************/ +/*********************************************************************** + * EXPECT + ***********************************************************************/ static inline int ctnetlink_exp_dump_tuple(struct sk_buff *skb, @@ -1049,7 +1049,7 @@ ctnetlink_exp_dump_tuple(struct sk_buff *skb, enum ctattr_expect type) { struct nfattr *nest_parms = NFA_NEST(skb, type); - + if (ctnetlink_dump_tuples(skb, tuple) < 0) goto nfattr_failure; @@ -1059,7 +1059,7 @@ ctnetlink_exp_dump_tuple(struct sk_buff *skb, nfattr_failure: return -1; -} +} static inline int ctnetlink_exp_dump_mask(struct sk_buff *skb, @@ -1090,7 +1090,7 @@ nfattr_failure: static inline int ctnetlink_exp_dump_expect(struct sk_buff *skb, - const struct ip_conntrack_expect *exp) + const struct ip_conntrack_expect *exp) { struct ip_conntrack *master = exp->master; __be32 timeout = htonl((exp->timeout.expires - jiffies) / HZ); @@ -1104,20 +1104,20 @@ ctnetlink_exp_dump_expect(struct sk_buff *skb, &master->tuplehash[IP_CT_DIR_ORIGINAL].tuple, CTA_EXPECT_MASTER) < 0) goto nfattr_failure; - + NFA_PUT(skb, CTA_EXPECT_TIMEOUT, sizeof(__be32), &timeout); NFA_PUT(skb, CTA_EXPECT_ID, sizeof(__be32), &id); return 0; - + nfattr_failure: return -1; } static int ctnetlink_exp_fill_info(struct sk_buff *skb, u32 pid, u32 seq, - int event, - int nowait, + int event, + int nowait, const struct ip_conntrack_expect *exp) { struct nlmsghdr *nlh; @@ -1216,7 +1216,7 @@ ctnetlink_exp_dump_table(struct sk_buff *skb, struct netlink_callback *cb) goto out; *id = exp->id; } -out: +out: read_unlock_bh(&ip_conntrack_lock); return skb->len; @@ -1228,7 +1228,7 @@ static const size_t cta_min_exp[CTA_EXPECT_MAX] = { }; static int -ctnetlink_get_expect(struct sock *ctnl, struct sk_buff *skb, +ctnetlink_get_expect(struct sock *ctnl, struct sk_buff *skb, struct nlmsghdr *nlh, struct nfattr *cda[], int *errp) { struct ip_conntrack_tuple tuple; @@ -1247,7 +1247,7 @@ ctnetlink_get_expect(struct sock *ctnl, struct sk_buff *skb, return -EAFNOSUPPORT; if ((*errp = netlink_dump_start(ctnl, skb, nlh, - ctnetlink_exp_dump_table, + ctnetlink_exp_dump_table, ctnetlink_done)) != 0) return -EINVAL; rlen = NLMSG_ALIGN(nlh->nlmsg_len); @@ -1275,14 +1275,14 @@ ctnetlink_get_expect(struct sock *ctnl, struct sk_buff *skb, ip_conntrack_expect_put(exp); return -ENOENT; } - } + } err = -ENOMEM; skb2 = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL); if (!skb2) goto out; - err = ctnetlink_exp_fill_info(skb2, NETLINK_CB(skb).pid, + err = ctnetlink_exp_fill_info(skb2, NETLINK_CB(skb).pid, nlh->nlmsg_seq, IPCTNL_MSG_EXP_NEW, 1, exp); if (err <= 0) @@ -1300,7 +1300,7 @@ out: } static int -ctnetlink_del_expect(struct sock *ctnl, struct sk_buff *skb, +ctnetlink_del_expect(struct sock *ctnl, struct sk_buff *skb, struct nlmsghdr *nlh, struct nfattr *cda[], int *errp) { struct ip_conntrack_expect *exp, *tmp; @@ -1333,7 +1333,7 @@ ctnetlink_del_expect(struct sock *ctnl, struct sk_buff *skb, /* after list removal, usage count == 1 */ ip_conntrack_unexpect_related(exp); - /* have to put what we 'get' above. + /* have to put what we 'get' above. * after this line usage count == 0 */ ip_conntrack_expect_put(exp); } else if (cda[CTA_EXPECT_HELP_NAME-1]) { @@ -1348,7 +1348,7 @@ ctnetlink_del_expect(struct sock *ctnl, struct sk_buff *skb, } list_for_each_entry_safe(exp, tmp, &ip_conntrack_expect_list, list) { - if (exp->master->helper == h + if (exp->master->helper == h && del_timer(&exp->timeout)) { ip_ct_unlink_expect(exp); ip_conntrack_expect_put(exp); @@ -1413,7 +1413,7 @@ ctnetlink_create_expect(struct nfattr *cda[]) err = -ENOMEM; goto out; } - + exp->expectfn = NULL; exp->flags = 0; exp->master = ct; @@ -1423,7 +1423,7 @@ ctnetlink_create_expect(struct nfattr *cda[]) err = ip_conntrack_expect_related(exp); ip_conntrack_expect_put(exp); -out: +out: ip_conntrack_put(tuplehash_to_ctrack(h)); return err; } |