litmus-rt.git - The LITMUS^RT kernel.

diff options

author	Linus Walleij <linus.walleij@stericsson.com>	2010-08-09 06:47:52 -0400
committer	Ben Dooks <ben-linux@fluff.org>	2010-08-14 11:29:55 -0400
commit	d92342df2a06baa8f5d7bf609b0bc0dc87067e82 (patch)
tree	d18b12db1293ae9cb3b6df6388d8ea1625d0ed93 /include/linux/uts.h
parent	2d4a3b76cfc061eedec7f510e14ddc3b9399a741 (diff)

DMAENGINE: correct PL080 register header file

This PL008 among all other variables named PL080 doesn't seem right. Fix it. Also add some missing defined that I use in the new PL08x driver. Acked-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>

Diffstat (limited to 'include/linux/uts.h')

0 files changed, 0 insertions, 0 deletions

/* (C) 1999-2001 Paul `Rusty' Russell * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include <linux/types.h> #include <linux/ip.h> #include <linux/netfilter.h> #include <linux/module.h> #include <linux/skbuff.h> #include <linux/icmp.h> #include <linux/sysctl.h> #include <net/route.h> #include <net/ip.h> #include <linux/netfilter_ipv4.h> #include <net/netfilter/nf_conntrack.h> #include <net/netfilter/nf_conntrack_helper.h> #include <net/netfilter/nf_conntrack_l4proto.h> #include <net/netfilter/nf_conntrack_l3proto.h> #include <net/netfilter/nf_conntrack_core.h> #include <net/netfilter/ipv4/nf_conntrack_ipv4.h> static int ipv4_pkt_to_tuple(const struct sk_buff *skb, unsigned int nhoff, struct nf_conntrack_tuple *tuple) { __be32 _addrs[2], *ap; ap = skb_header_pointer(skb, nhoff + offsetof(struct iphdr, saddr), sizeof(u_int32_t) * 2, _addrs); if (ap == NULL) return 0; tuple->src.u3.ip = ap[0]; tuple->dst.u3.ip = ap[1]; return 1; } static int ipv4_invert_tuple(struct nf_conntrack_tuple *tuple, const struct nf_conntrack_tuple *orig) { tuple->src.u3.ip = orig->dst.u3.ip; tuple->dst.u3.ip = orig->src.u3.ip; return 1; } static int ipv4_print_tuple(struct seq_file *s, const struct nf_conntrack_tuple *tuple) { return seq_printf(s, "src=%u.%u.%u.%u dst=%u.%u.%u.%u ", NIPQUAD(tuple->src.u3.ip), NIPQUAD(tuple->dst.u3.ip)); } /* Returns new sk_buff, or NULL */ static int nf_ct_ipv4_gather_frags(struct sk_buff *skb, u_int32_t user) { int err; skb_orphan(skb); local_bh_disable(); err = ip_defrag(skb, user); local_bh_enable(); if (!err) ip_send_check(ip_hdr(skb)); return err; } static int ipv4_get_l4proto(const struct sk_buff *skb, unsigned int nhoff, unsigned int *dataoff, u_int8_t *protonum) { struct iphdr _iph, *iph; iph = skb_header_pointer(skb, nhoff, sizeof(_iph), &_iph); if (iph == NULL) return -NF_DROP; /* Conntrack defragments packets, we might still see fragments * inside ICMP packets though. */ if (iph->frag_off & htons(IP_OFFSET)) return -NF_DROP; *dataoff = nhoff + (iph->ihl << 2); *protonum = iph->protocol; return NF_ACCEPT; } static unsigned int ipv4_confirm(unsigned int hooknum, struct sk_buff *skb, const struct net_device *in, const struct net_device *out, int (*okfn)(struct sk_buff *)) { /* We've seen it coming out the other side: confirm it */ return nf_conntrack_confirm(skb); } static unsigned int ipv4_conntrack_help(unsigned int hooknum, struct sk_buff *skb, const struct net_device *in, const struct net_device *out, int (*okfn)(struct sk_buff *)) { struct nf_conn *ct; enum ip_conntrack_info ctinfo; struct nf_conn_help *help; struct nf_conntrack_helper *helper; /* This is where we call the helper: as the packet goes out. */ ct = nf_ct_get(skb, &ctinfo); if (!ct || ctinfo == IP_CT_RELATED + IP_CT_IS_REPLY) return NF_ACCEPT; help = nfct_help(ct); if (!help) return NF_ACCEPT; /* rcu_read_lock()ed by nf_hook_slow */ helper = rcu_dereference(help->helper); if (!helper) return NF_ACCEPT; return helper->help(skb, skb_network_offset(skb) + ip_hdrlen(skb), ct, ctinfo); } static unsigned int ipv4_conntrack_defrag(unsigned int hooknum, struct sk_buff *skb, const struct net_device *in, const struct net_device *out, int (*okfn)(struct sk_buff *)) { /* Previously seen (loopback)? Ignore. Do this before fragment check. */ if (skb->nfct) return NF_ACCEPT; /* Gather fragments. */ if (ip_hdr(skb)->frag_off & htons(IP_MF | IP_OFFSET)) { if (nf_ct_ipv4_gather_frags(skb, hooknum == NF_INET_PRE_ROUTING ? IP_DEFRAG_CONNTRACK_IN : IP_DEFRAG_CONNTRACK_OUT)) return NF_STOLEN; } return NF_ACCEPT; } static unsigned int ipv4_conntrack_in(unsigned int hooknum, struct sk_buff *skb, const struct net_device *in, const struct net_device *out, int (*okfn)(struct sk_buff *)) { return nf_conntrack_in(PF_INET, hooknum, skb); } static unsigned int ipv4_conntrack_local(unsigned int hooknum, struct sk_buff *skb, const struct net_device *in, const struct net_device *out, int (*okfn)(struct sk_buff *)) { /* root is playing with raw sockets. */ if (skb->len < sizeof(struct iphdr) || ip_hdrlen(skb) < sizeof(struct iphdr)) { if (net_ratelimit()) printk("ipt_hook: happy cracking.\n"); return NF_ACCEPT; } return nf_conntrack_in(PF_INET, hooknum, skb); } /* Connection tracking may drop packets, but never alters them, so make it the first hook. */ static struct nf_hook_ops ipv4_conntrack_ops[] __read_mostly = { { .hook = ipv4_conntrack_defrag, .owner = THIS_MODULE, .pf = PF_INET, .hooknum = NF_INET_PRE_ROUTING, .priority = NF_IP_PRI_CONNTRACK_DEFRAG, }, { .hook = ipv4_conntrack_in, .owner = THIS_MODULE, .pf = PF_INET, .hooknum = NF_INET_PRE_ROUTING, .priority = NF_IP_PRI_CONNTRACK, }, { .hook = ipv4_conntrack_defrag, .owner = THIS_MODULE, .pf = PF_INET, .hooknum = NF_INET_LOCAL_OUT, .priority = NF_IP_PRI_CONNTRACK_DEFRAG, }, { .hook = ipv4_conntrack_local, .owner = THIS_MODULE, .pf = PF_INET, .hooknum = NF_INET_LOCAL_OUT, .priority = NF_IP_PRI_CONNTRACK, }, { .hook = ipv4_conntrack_help, .owner = THIS_MODULE, .pf = PF_INET, .hooknum = NF_INET_POST_ROUTING, .priority = NF_IP_PRI_CONNTRACK_HELPER, }, { .hook = ipv4_conntrack_help, .owner = THIS_MODULE, .pf = PF_INET, .hooknum = NF_INET_LOCAL_IN, .priority = NF_IP_PRI_CONNTRACK_HELPER, }, { .hook = ipv4_confirm, .owner = THIS_MODULE, .pf = PF_INET, .hooknum = NF_INET_POST_ROUTING, .priority = NF_IP_PRI_CONNTRACK_CONFIRM, }, { .hook = ipv4_confirm, .owner = THIS_MODULE, .pf = PF_INET, .hooknum = NF_INET_LOCAL_IN, .priority = NF_IP_PRI_CONNTRACK_CONFIRM, }, }; #if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT) static int log_invalid_proto_min = 0; static int log_invalid_proto_max = 255; static ctl_table ip_ct_sysctl_table[] = { { .ctl_name = NET_IPV4_NF_CONNTRACK_MAX, .procname = "ip_conntrack_max", .data = &nf_conntrack_max, .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec, }, { .ctl_name = NET_IPV4_NF_CONNTRACK_COUNT, .procname = "ip_conntrack_count", .data = &nf_conntrack_count, .maxlen = sizeof(int), .mode = 0444, .proc_handler = &proc_dointvec, }, { .ctl_name = NET_IPV4_NF_CONNTRACK_BUCKETS, .procname = "ip_conntrack_buckets", .data = &nf_conntrack_htable_size, .maxlen = sizeof(unsigned int), .mode = 0444, .proc_handler = &proc_dointvec, }, { .ctl_name = NET_IPV4_NF_CONNTRACK_CHECKSUM, .procname = "ip_conntrack_checksum", .data = &nf_conntrack_checksum, .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec, }, { .ctl_name = NET_IPV4_NF_CONNTRACK_LOG_INVALID, .procname = "ip_conntrack_log_invalid", .data = &nf_ct_log_invalid, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = &proc_dointvec_minmax, .strategy = &sysctl_intvec, .extra1 = &log_invalid_proto_min, .extra2 = &log_invalid_proto_max, }, { .ctl_name = 0 } }; #endif /* CONFIG_SYSCTL && CONFIG_NF_CONNTRACK_PROC_COMPAT */ /* Fast function for those who don't want to parse /proc (and I don't blame them). */ /* Reversing the socket's dst/src point of view gives us the reply mapping. */ static int getorigdst(struct sock *sk, int optval, void __user *user, int *len) { struct inet_sock *inet = inet_sk(sk); struct nf_conntrack_tuple_hash *h; struct nf_conntrack_tuple tuple; NF_CT_TUPLE_U_BLANK(&tuple); tuple.src.u3.ip = inet->rcv_saddr; tuple.src.u.tcp.port = inet->sport; tuple.dst.u3.ip = inet->daddr; tuple.dst.u.tcp.port = inet->dport; tuple.src.l3num = PF_INET; tuple.dst.protonum = IPPROTO_TCP; /* We only do TCP at the moment: is there a better way? */ if (strcmp(sk->sk_prot->name, "TCP")) { pr_debug("SO_ORIGINAL_DST: Not a TCP socket\n"); return -ENOPROTOOPT; } if ((unsigned int) *len < sizeof(struct sockaddr_in)) { pr_debug("SO_ORIGINAL_DST: len %d not %Zu\n", *len, sizeof(struct sockaddr_in)); return -EINVAL; } h = nf_conntrack_find_get(&tuple); if (h) { struct sockaddr_in sin; struct nf_conn *ct = nf_ct_tuplehash_to_ctrack(h); sin.sin_family = AF_INET; sin.sin_port = ct->tuplehash[IP_CT_DIR_ORIGINAL] .tuple.dst.u.tcp.port; sin.sin_addr.s_addr = ct->tuplehash[IP_CT_DIR_ORIGINAL] .tuple.dst.u3.ip; memset(sin.sin_zero, 0, sizeof(sin.sin_zero)); pr_debug("SO_ORIGINAL_DST: %u.%u.%u.%u %u\n", NIPQUAD(sin.sin_addr.s_addr), ntohs(sin.sin_port)); nf_ct_put(ct); if (copy_to_user(user, &sin, sizeof(sin)) != 0) return -EFAULT; else return 0; } pr_debug("SO_ORIGINAL_DST: Can't find %u.%u.%u.%u/%u-%u.%u.%u.%u/%u.\n", NIPQUAD(tuple.src.u3.ip), ntohs(tuple.src.u.tcp.port), NIPQUAD(tuple.dst.u3.ip), ntohs(tuple.dst.u.tcp.port)); return -ENOENT; } #if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE) #include <linux/netfilter/nfnetlink.h> #include <linux/netfilter/nfnetlink_conntrack.h> static int ipv4_tuple_to_nlattr(struct sk_buff *skb, const struct nf_conntrack_tuple *tuple) { NLA_PUT_BE32(skb, CTA_IP_V4_SRC, tuple->src.u3.ip); NLA_PUT_BE32(skb, CTA_IP_V4_DST, tuple->dst.u3.ip); return 0; nla_put_failure: return -1; } static const struct nla_policy ipv4_nla_policy[CTA_IP_MAX+1] = { [CTA_IP_V4_SRC] = { .type = NLA_U32 }, [CTA_IP_V4_DST] = { .type = NLA_U32 }, }; static int ipv4_nlattr_to_tuple(struct nlattr *tb[], struct nf_conntrack_tuple *t) { if (!tb[CTA_IP_V4_SRC] || !tb[CTA_IP_V4_DST]) return -EINVAL; t->src.u3.ip = nla_get_be32(tb[CTA_IP_V4_SRC]); t->dst.u3.ip = nla_get_be32(tb[CTA_IP_V4_DST]); return 0; } #endif static struct nf_sockopt_ops so_getorigdst = { .pf = PF_INET, .get_optmin = SO_ORIGINAL_DST, .get_optmax = SO_ORIGINAL_DST+1, .get = &getorigdst, .owner = THIS_MODULE, }; struct nf_conntrack_l3proto nf_conntrack_l3proto_ipv4 __read_mostly = { .l3proto = PF_INET, .name = "ipv4", .pkt_to_tuple = ipv4_pkt_to_tuple, .invert_tuple = ipv4_invert_tuple, .print_tuple = ipv4_print_tuple, .get_l4proto = ipv4_get_l4proto, #if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE) .tuple_to_nlattr = ipv4_tuple_to_nlattr, .nlattr_to_tuple = ipv4_nlattr_to_tuple, .nla_policy = ipv4_nla_policy, #endif #if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT) .ctl_table_path = nf_net_ipv4_netfilter_sysctl_path, .ctl_table = ip_ct_sysctl_table, #endif .me = THIS_MODULE, }; module_param_call(hashsize, nf_conntrack_set_hashsize, param_get_uint, &nf_conntrack_htable_size, 0600); MODULE_ALIAS("nf_conntrack-" __stringify(AF_INET)); MODULE_ALIAS("ip_conntrack"); MODULE_LICENSE("GPL"); static int __init nf_conntrack_l3proto_ipv4_init(void) { int ret = 0; need_conntrack(); ret = nf_register_sockopt(&so_getorigdst); if (ret < 0) { printk(KERN_ERR "Unable to register netfilter socket option\n"); return ret; } ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_tcp4); if (ret < 0) { printk("nf_conntrack_ipv4: can't register tcp.\n"); goto cleanup_sockopt; } ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_udp4); if (ret < 0) { printk("nf_conntrack_ipv4: can't register udp.\n"); goto cleanup_tcp; } ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_icmp); if (ret < 0) { printk("nf_conntrack_ipv4: can't register icmp.\n"); goto cleanup_udp; } ret = nf_conntrack_l3proto_register(&nf_conntrack_l3proto_ipv4); if (ret < 0) { printk("nf_conntrack_ipv4: can't register ipv4\n"); goto cleanup_icmp; } ret = nf_register_hooks(ipv4_conntrack_ops, ARRAY_SIZE(ipv4_conntrack_ops)); if (ret < 0) { printk("nf_conntrack_ipv4: can't register hooks.\n"); goto cleanup_ipv4; } #if defined(CONFIG_PROC_FS) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT) ret = nf_conntrack_ipv4_compat_init(); if (ret < 0) goto cleanup_hooks; #endif return ret; #if defined(CONFIG_PROC_FS) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT) cleanup_hooks: nf_unregister_hooks(ipv4_conntrack_ops, ARRAY_SIZE(ipv4_conntrack_ops)); #endif cleanup_ipv4: nf_conntrack_l3proto_unregister(&nf_conntrack_l3proto_ipv4); cleanup_icmp: nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_icmp); cleanup_udp: nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_udp4); cleanup_tcp: nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_tcp4); cleanup_sockopt: nf_unregister_sockopt(&so_getorigdst); return ret; } static void __exit nf_conntrack_l3proto_ipv4_fini(void) { synchronize_net(); #if defined(CONFIG_PROC_FS) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT) nf_conntrack_ipv4_compat_fini(); #endif nf_unregister_hooks(ipv4_conntrack_ops, ARRAY_SIZE(ipv4_conntrack_ops)); nf_conntrack_l3proto_unregister(&nf_conntrack_l3proto_ipv4); nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_icmp); nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_udp4); nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_tcp4); nf_unregister_sockopt(&so_getorigdst); } module_init(nf_conntrack_l3proto_ipv4_init); module_exit(nf_conntrack_l3proto_ipv4_fini); void need_ipv4_conntrack(void) { return; } EXPORT_SYMBOL_GPL(need_ipv4_conntrack);


context:
space:
mode: