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@ -11,259 +11,198 @@
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*
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*
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* Changes:
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* Steve Whitehouse <steve@chygwyn.com>
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* Updated for Thomas Graf's generic rules
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*
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*/
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#include <linux/string.h>
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#include <linux/net.h>
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#include <linux/socket.h>
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#include <linux/sockios.h>
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#include <linux/init.h>
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#include <linux/skbuff.h>
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#include <linux/netlink.h>
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#include <linux/rtnetlink.h>
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#include <linux/proc_fs.h>
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#include <linux/netdevice.h>
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#include <linux/timer.h>
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#include <linux/spinlock.h>
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#include <linux/in_route.h>
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#include <linux/list.h>
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#include <linux/rcupdate.h>
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#include <asm/atomic.h>
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#include <asm/uaccess.h>
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#include <net/neighbour.h>
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#include <net/dst.h>
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#include <net/flow.h>
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#include <net/fib_rules.h>
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#include <net/dn.h>
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#include <net/dn_fib.h>
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#include <net/dn_neigh.h>
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#include <net/dn_dev.h>
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static struct fib_rules_ops dn_fib_rules_ops;
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struct dn_fib_rule
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{
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struct hlist_node r_hlist;
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atomic_t r_clntref;
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u32 r_preference;
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unsigned char r_table;
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unsigned char r_action;
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unsigned char r_dst_len;
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unsigned char r_src_len;
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__le16 r_src;
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__le16 r_srcmask;
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__le16 r_dst;
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__le16 r_dstmask;
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__le16 r_srcmap;
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u8 r_flags;
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struct fib_rule common;
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unsigned char dst_len;
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unsigned char src_len;
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__le16 src;
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__le16 srcmask;
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__le16 dst;
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__le16 dstmask;
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__le16 srcmap;
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u8 flags;
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#ifdef CONFIG_DECNET_ROUTE_FWMARK
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u32 r_fwmark;
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u32 fwmark;
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#endif
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int r_ifindex;
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char r_ifname[IFNAMSIZ];
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int r_dead;
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struct rcu_head rcu;
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};
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static struct dn_fib_rule default_rule = {
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.r_clntref = ATOMIC_INIT(2),
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.r_preference = 0x7fff,
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.r_table = RT_TABLE_MAIN,
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.r_action = RTN_UNICAST
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.common = {
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.refcnt = ATOMIC_INIT(2),
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.pref = 0x7fff,
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.table = RT_TABLE_MAIN,
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.action = FR_ACT_TO_TBL,
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},
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};
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static struct hlist_head dn_fib_rules;
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static LIST_HEAD(dn_fib_rules);
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int dn_fib_rtm_delrule(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
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int dn_fib_lookup(struct flowi *flp, struct dn_fib_res *res)
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{
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struct rtattr **rta = arg;
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struct rtmsg *rtm = NLMSG_DATA(nlh);
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struct dn_fib_rule *r;
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struct hlist_node *node;
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int err = -ESRCH;
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struct fib_lookup_arg arg = {
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.result = res,
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};
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int err;
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hlist_for_each_entry(r, node, &dn_fib_rules, r_hlist) {
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if ((!rta[RTA_SRC-1] || memcmp(RTA_DATA(rta[RTA_SRC-1]), &r->r_src, 2) == 0) &&
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rtm->rtm_src_len == r->r_src_len &&
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rtm->rtm_dst_len == r->r_dst_len &&
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(!rta[RTA_DST-1] || memcmp(RTA_DATA(rta[RTA_DST-1]), &r->r_dst, 2) == 0) &&
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#ifdef CONFIG_DECNET_ROUTE_FWMARK
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(!rta[RTA_PROTOINFO-1] || memcmp(RTA_DATA(rta[RTA_PROTOINFO-1]), &r->r_fwmark, 4) == 0) &&
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#endif
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(!rtm->rtm_type || rtm->rtm_type == r->r_action) &&
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(!rta[RTA_PRIORITY-1] || memcmp(RTA_DATA(rta[RTA_PRIORITY-1]), &r->r_preference, 4) == 0) &&
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(!rta[RTA_IIF-1] || rtattr_strcmp(rta[RTA_IIF-1], r->r_ifname) == 0) &&
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(!rtm->rtm_table || (r && rtm->rtm_table == r->r_table))) {
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err = -EPERM;
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if (r == &default_rule)
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break;
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hlist_del_rcu(&r->r_hlist);
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r->r_dead = 1;
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dn_fib_rule_put(r);
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err = 0;
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break;
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}
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}
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err = fib_rules_lookup(&dn_fib_rules_ops, flp, 0, &arg);
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res->r = arg.rule;
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return err;
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}
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static inline void dn_fib_rule_put_rcu(struct rcu_head *head)
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int dn_fib_rule_action(struct fib_rule *rule, struct flowi *flp, int flags,
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struct fib_lookup_arg *arg)
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{
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struct dn_fib_rule *r = container_of(head, struct dn_fib_rule, rcu);
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kfree(r);
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}
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int err = -EAGAIN;
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struct dn_fib_table *tbl;
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void dn_fib_rule_put(struct dn_fib_rule *r)
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{
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if (atomic_dec_and_test(&r->r_clntref)) {
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if (r->r_dead)
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call_rcu(&r->rcu, dn_fib_rule_put_rcu);
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else
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printk(KERN_DEBUG "Attempt to free alive dn_fib_rule\n");
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}
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}
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switch(rule->action) {
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case FR_ACT_TO_TBL:
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break;
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case FR_ACT_UNREACHABLE:
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err = -ENETUNREACH;
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goto errout;
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int dn_fib_rtm_newrule(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
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{
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struct rtattr **rta = arg;
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struct rtmsg *rtm = NLMSG_DATA(nlh);
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struct dn_fib_rule *r, *new_r, *last = NULL;
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struct hlist_node *node = NULL;
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unsigned char table_id;
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case FR_ACT_PROHIBIT:
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err = -EACCES;
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goto errout;
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if (rtm->rtm_src_len > 16 || rtm->rtm_dst_len > 16)
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return -EINVAL;
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if (rta[RTA_IIF-1] && RTA_PAYLOAD(rta[RTA_IIF-1]) > IFNAMSIZ)
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return -EINVAL;
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if (rtm->rtm_type == RTN_NAT)
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return -EINVAL;
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table_id = rtm->rtm_table;
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if (table_id == RT_TABLE_UNSPEC) {
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struct dn_fib_table *tb;
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if (rtm->rtm_type == RTN_UNICAST) {
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if ((tb = dn_fib_empty_table()) == NULL)
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return -ENOBUFS;
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table_id = tb->n;
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}
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case FR_ACT_BLACKHOLE:
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default:
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err = -EINVAL;
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goto errout;
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}
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new_r = kzalloc(sizeof(*new_r), GFP_KERNEL);
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if (!new_r)
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return -ENOMEM;
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tbl = dn_fib_get_table(rule->table, 0);
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if (tbl == NULL)
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goto errout;
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err = tbl->lookup(tbl, flp, (struct dn_fib_res *)arg->result);
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if (err > 0)
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err = -EAGAIN;
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errout:
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return err;
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}
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static struct nla_policy dn_fib_rule_policy[FRA_MAX+1] __read_mostly = {
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[FRA_IFNAME] = { .type = NLA_STRING },
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[FRA_PRIORITY] = { .type = NLA_U32 },
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[FRA_SRC] = { .type = NLA_U16 },
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[FRA_DST] = { .type = NLA_U16 },
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[FRA_FWMARK] = { .type = NLA_U32 },
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};
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static int dn_fib_rule_match(struct fib_rule *rule, struct flowi *fl, int flags)
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{
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struct dn_fib_rule *r = (struct dn_fib_rule *)rule;
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u16 daddr = fl->fld_dst;
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u16 saddr = fl->fld_src;
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if (((saddr ^ r->src) & r->srcmask) ||
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((daddr ^ r->dst) & r->dstmask))
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return 0;
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if (rta[RTA_SRC-1])
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memcpy(&new_r->r_src, RTA_DATA(rta[RTA_SRC-1]), 2);
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if (rta[RTA_DST-1])
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memcpy(&new_r->r_dst, RTA_DATA(rta[RTA_DST-1]), 2);
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if (rta[RTA_GATEWAY-1])
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memcpy(&new_r->r_srcmap, RTA_DATA(rta[RTA_GATEWAY-1]), 2);
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new_r->r_src_len = rtm->rtm_src_len;
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new_r->r_dst_len = rtm->rtm_dst_len;
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new_r->r_srcmask = dnet_make_mask(rtm->rtm_src_len);
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new_r->r_dstmask = dnet_make_mask(rtm->rtm_dst_len);
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#ifdef CONFIG_DECNET_ROUTE_FWMARK
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if (rta[RTA_PROTOINFO-1])
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memcpy(&new_r->r_fwmark, RTA_DATA(rta[RTA_PROTOINFO-1]), 4);
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if (r->fwmark && (r->fwmark != fl->fld_fwmark))
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return 0;
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#endif
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new_r->r_action = rtm->rtm_type;
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new_r->r_flags = rtm->rtm_flags;
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if (rta[RTA_PRIORITY-1])
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memcpy(&new_r->r_preference, RTA_DATA(rta[RTA_PRIORITY-1]), 4);
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new_r->r_table = table_id;
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if (rta[RTA_IIF-1]) {
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struct net_device *dev;
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rtattr_strlcpy(new_r->r_ifname, rta[RTA_IIF-1], IFNAMSIZ);
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new_r->r_ifindex = -1;
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dev = dev_get_by_name(new_r->r_ifname);
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if (dev) {
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new_r->r_ifindex = dev->ifindex;
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dev_put(dev);
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}
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}
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r = container_of(dn_fib_rules.first, struct dn_fib_rule, r_hlist);
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if (!new_r->r_preference) {
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if (r && r->r_hlist.next != NULL) {
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r = container_of(r->r_hlist.next, struct dn_fib_rule, r_hlist);
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if (r->r_preference)
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new_r->r_preference = r->r_preference - 1;
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}
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}
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hlist_for_each_entry(r, node, &dn_fib_rules, r_hlist) {
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if (r->r_preference > new_r->r_preference)
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break;
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last = r;
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}
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atomic_inc(&new_r->r_clntref);
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if (last)
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hlist_add_after_rcu(&last->r_hlist, &new_r->r_hlist);
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else
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hlist_add_before_rcu(&new_r->r_hlist, &r->r_hlist);
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return 0;
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return 1;
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}
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int dn_fib_lookup(const struct flowi *flp, struct dn_fib_res *res)
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static int dn_fib_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
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struct nlmsghdr *nlh, struct fib_rule_hdr *frh,
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struct nlattr **tb)
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{
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struct dn_fib_rule *r, *policy;
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struct dn_fib_table *tb;
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__le16 saddr = flp->fld_src;
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__le16 daddr = flp->fld_dst;
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struct hlist_node *node;
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int err;
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int err = -EINVAL;
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struct dn_fib_rule *r = (struct dn_fib_rule *)rule;
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rcu_read_lock();
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if (frh->src_len > 16 || frh->dst_len > 16 || frh->tos)
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goto errout;
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hlist_for_each_entry_rcu(r, node, &dn_fib_rules, r_hlist) {
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if (((saddr^r->r_src) & r->r_srcmask) ||
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((daddr^r->r_dst) & r->r_dstmask) ||
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|
|
#ifdef CONFIG_DECNET_ROUTE_FWMARK
|
|
|
|
|
(r->r_fwmark && r->r_fwmark != flp->fld_fwmark) ||
|
|
|
|
|
#endif
|
|
|
|
|
(r->r_ifindex && r->r_ifindex != flp->iif))
|
|
|
|
|
continue;
|
|
|
|
|
if (rule->table == RT_TABLE_UNSPEC) {
|
|
|
|
|
if (rule->action == FR_ACT_TO_TBL) {
|
|
|
|
|
struct dn_fib_table *table;
|
|
|
|
|
|
|
|
|
|
switch(r->r_action) {
|
|
|
|
|
case RTN_UNICAST:
|
|
|
|
|
case RTN_NAT:
|
|
|
|
|
policy = r;
|
|
|
|
|
break;
|
|
|
|
|
case RTN_UNREACHABLE:
|
|
|
|
|
rcu_read_unlock();
|
|
|
|
|
return -ENETUNREACH;
|
|
|
|
|
default:
|
|
|
|
|
case RTN_BLACKHOLE:
|
|
|
|
|
rcu_read_unlock();
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
case RTN_PROHIBIT:
|
|
|
|
|
rcu_read_unlock();
|
|
|
|
|
return -EACCES;
|
|
|
|
|
}
|
|
|
|
|
table = dn_fib_empty_table();
|
|
|
|
|
if (table == NULL) {
|
|
|
|
|
err = -ENOBUFS;
|
|
|
|
|
goto errout;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ((tb = dn_fib_get_table(r->r_table, 0)) == NULL)
|
|
|
|
|
continue;
|
|
|
|
|
err = tb->lookup(tb, flp, res);
|
|
|
|
|
if (err == 0) {
|
|
|
|
|
res->r = policy;
|
|
|
|
|
if (policy)
|
|
|
|
|
atomic_inc(&policy->r_clntref);
|
|
|
|
|
rcu_read_unlock();
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
if (err < 0 && err != -EAGAIN) {
|
|
|
|
|
rcu_read_unlock();
|
|
|
|
|
return err;
|
|
|
|
|
rule->table = table->n;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
rcu_read_unlock();
|
|
|
|
|
return -ESRCH;
|
|
|
|
|
if (tb[FRA_SRC])
|
|
|
|
|
r->src = nla_get_u16(tb[FRA_SRC]);
|
|
|
|
|
|
|
|
|
|
if (tb[FRA_DST])
|
|
|
|
|
r->dst = nla_get_u16(tb[FRA_DST]);
|
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_DECNET_ROUTE_FWMARK
|
|
|
|
|
if (tb[FRA_FWMARK])
|
|
|
|
|
r->fwmark = nla_get_u32(tb[FRA_FWMARK]);
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
r->src_len = frh->src_len;
|
|
|
|
|
r->srcmask = dnet_make_mask(r->src_len);
|
|
|
|
|
r->dst_len = frh->dst_len;
|
|
|
|
|
r->dstmask = dnet_make_mask(r->dst_len);
|
|
|
|
|
err = 0;
|
|
|
|
|
errout:
|
|
|
|
|
return err;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int dn_fib_rule_compare(struct fib_rule *rule, struct fib_rule_hdr *frh,
|
|
|
|
|
struct nlattr **tb)
|
|
|
|
|
{
|
|
|
|
|
struct dn_fib_rule *r = (struct dn_fib_rule *)rule;
|
|
|
|
|
|
|
|
|
|
if (frh->src_len && (r->src_len != frh->src_len))
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
if (frh->dst_len && (r->dst_len != frh->dst_len))
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_DECNET_ROUTE_FWMARK
|
|
|
|
|
if (tb[FRA_FWMARK] && (r->fwmark != nla_get_u32(tb[FRA_FWMARK])))
|
|
|
|
|
return 0;
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
if (tb[FRA_SRC] && (r->src != nla_get_u32(tb[FRA_SRC])))
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
if (tb[FRA_DST] && (r->dst != nla_get_u32(tb[FRA_DST])))
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
unsigned dnet_addr_type(__le16 addr)
|
|
|
|
@ -284,142 +223,77 @@ unsigned dnet_addr_type(__le16 addr)
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
__le16 dn_fib_rules_policy(__le16 saddr, struct dn_fib_res *res, unsigned *flags)
|
|
|
|
|
static int dn_fib_rule_fill(struct fib_rule *rule, struct sk_buff *skb,
|
|
|
|
|
struct nlmsghdr *nlh, struct fib_rule_hdr *frh)
|
|
|
|
|
{
|
|
|
|
|
struct dn_fib_rule *r = res->r;
|
|
|
|
|
struct dn_fib_rule *r = (struct dn_fib_rule *)rule;
|
|
|
|
|
|
|
|
|
|
if (r->r_action == RTN_NAT) {
|
|
|
|
|
int addrtype = dnet_addr_type(r->r_srcmap);
|
|
|
|
|
frh->family = AF_DECnet;
|
|
|
|
|
frh->dst_len = r->dst_len;
|
|
|
|
|
frh->src_len = r->src_len;
|
|
|
|
|
frh->tos = 0;
|
|
|
|
|
|
|
|
|
|
if (addrtype == RTN_NAT) {
|
|
|
|
|
saddr = (saddr&~r->r_srcmask)|r->r_srcmap;
|
|
|
|
|
*flags |= RTCF_SNAT;
|
|
|
|
|
} else if (addrtype == RTN_LOCAL || r->r_srcmap == 0) {
|
|
|
|
|
saddr = r->r_srcmap;
|
|
|
|
|
*flags |= RTCF_MASQ;
|
|
|
|
|
#ifdef CONFIG_DECNET_ROUTE_FWMARK
|
|
|
|
|
if (r->fwmark)
|
|
|
|
|
NLA_PUT_U32(skb, FRA_FWMARK, r->fwmark);
|
|
|
|
|
#endif
|
|
|
|
|
if (r->dst_len)
|
|
|
|
|
NLA_PUT_U16(skb, FRA_DST, r->dst);
|
|
|
|
|
if (r->src_len)
|
|
|
|
|
NLA_PUT_U16(skb, FRA_SRC, r->src);
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
nla_put_failure:
|
|
|
|
|
return -ENOBUFS;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static u32 dn_fib_rule_default_pref(void)
|
|
|
|
|
{
|
|
|
|
|
struct list_head *pos;
|
|
|
|
|
struct fib_rule *rule;
|
|
|
|
|
|
|
|
|
|
if (!list_empty(&dn_fib_rules)) {
|
|
|
|
|
pos = dn_fib_rules.next;
|
|
|
|
|
if (pos->next != &dn_fib_rules) {
|
|
|
|
|
rule = list_entry(pos->next, struct fib_rule, list);
|
|
|
|
|
if (rule->pref)
|
|
|
|
|
return rule->pref - 1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return saddr;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void dn_fib_rules_detach(struct net_device *dev)
|
|
|
|
|
{
|
|
|
|
|
struct hlist_node *node;
|
|
|
|
|
struct dn_fib_rule *r;
|
|
|
|
|
|
|
|
|
|
hlist_for_each_entry(r, node, &dn_fib_rules, r_hlist) {
|
|
|
|
|
if (r->r_ifindex == dev->ifindex)
|
|
|
|
|
r->r_ifindex = -1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void dn_fib_rules_attach(struct net_device *dev)
|
|
|
|
|
{
|
|
|
|
|
struct hlist_node *node;
|
|
|
|
|
struct dn_fib_rule *r;
|
|
|
|
|
|
|
|
|
|
hlist_for_each_entry(r, node, &dn_fib_rules, r_hlist) {
|
|
|
|
|
if (r->r_ifindex == -1 && strcmp(dev->name, r->r_ifname) == 0)
|
|
|
|
|
r->r_ifindex = dev->ifindex;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int dn_fib_rules_event(struct notifier_block *this, unsigned long event, void *ptr)
|
|
|
|
|
{
|
|
|
|
|
struct net_device *dev = ptr;
|
|
|
|
|
|
|
|
|
|
switch(event) {
|
|
|
|
|
case NETDEV_UNREGISTER:
|
|
|
|
|
dn_fib_rules_detach(dev);
|
|
|
|
|
dn_fib_sync_down(0, dev, 1);
|
|
|
|
|
case NETDEV_REGISTER:
|
|
|
|
|
dn_fib_rules_attach(dev);
|
|
|
|
|
dn_fib_sync_up(dev);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return NOTIFY_DONE;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static struct notifier_block dn_fib_rules_notifier = {
|
|
|
|
|
.notifier_call = dn_fib_rules_event,
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static int dn_fib_fill_rule(struct sk_buff *skb, struct dn_fib_rule *r,
|
|
|
|
|
struct netlink_callback *cb, unsigned int flags)
|
|
|
|
|
{
|
|
|
|
|
struct rtmsg *rtm;
|
|
|
|
|
struct nlmsghdr *nlh;
|
|
|
|
|
unsigned char *b = skb->tail;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
nlh = NLMSG_NEW_ANSWER(skb, cb, RTM_NEWRULE, sizeof(*rtm), flags);
|
|
|
|
|
rtm = NLMSG_DATA(nlh);
|
|
|
|
|
rtm->rtm_family = AF_DECnet;
|
|
|
|
|
rtm->rtm_dst_len = r->r_dst_len;
|
|
|
|
|
rtm->rtm_src_len = r->r_src_len;
|
|
|
|
|
rtm->rtm_tos = 0;
|
|
|
|
|
#ifdef CONFIG_DECNET_ROUTE_FWMARK
|
|
|
|
|
if (r->r_fwmark)
|
|
|
|
|
RTA_PUT(skb, RTA_PROTOINFO, 4, &r->r_fwmark);
|
|
|
|
|
#endif
|
|
|
|
|
rtm->rtm_table = r->r_table;
|
|
|
|
|
rtm->rtm_protocol = 0;
|
|
|
|
|
rtm->rtm_scope = 0;
|
|
|
|
|
rtm->rtm_type = r->r_action;
|
|
|
|
|
rtm->rtm_flags = r->r_flags;
|
|
|
|
|
|
|
|
|
|
if (r->r_dst_len)
|
|
|
|
|
RTA_PUT(skb, RTA_DST, 2, &r->r_dst);
|
|
|
|
|
if (r->r_src_len)
|
|
|
|
|
RTA_PUT(skb, RTA_SRC, 2, &r->r_src);
|
|
|
|
|
if (r->r_ifname[0])
|
|
|
|
|
RTA_PUT(skb, RTA_IIF, IFNAMSIZ, &r->r_ifname);
|
|
|
|
|
if (r->r_preference)
|
|
|
|
|
RTA_PUT(skb, RTA_PRIORITY, 4, &r->r_preference);
|
|
|
|
|
if (r->r_srcmap)
|
|
|
|
|
RTA_PUT(skb, RTA_GATEWAY, 2, &r->r_srcmap);
|
|
|
|
|
nlh->nlmsg_len = skb->tail - b;
|
|
|
|
|
return skb->len;
|
|
|
|
|
|
|
|
|
|
nlmsg_failure:
|
|
|
|
|
rtattr_failure:
|
|
|
|
|
skb_trim(skb, b - skb->data);
|
|
|
|
|
return -1;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int dn_fib_dump_rules(struct sk_buff *skb, struct netlink_callback *cb)
|
|
|
|
|
{
|
|
|
|
|
int idx = 0;
|
|
|
|
|
int s_idx = cb->args[0];
|
|
|
|
|
struct dn_fib_rule *r;
|
|
|
|
|
struct hlist_node *node;
|
|
|
|
|
|
|
|
|
|
rcu_read_lock();
|
|
|
|
|
hlist_for_each_entry(r, node, &dn_fib_rules, r_hlist) {
|
|
|
|
|
if (idx < s_idx)
|
|
|
|
|
goto next;
|
|
|
|
|
if (dn_fib_fill_rule(skb, r, cb, NLM_F_MULTI) < 0)
|
|
|
|
|
break;
|
|
|
|
|
next:
|
|
|
|
|
idx++;
|
|
|
|
|
}
|
|
|
|
|
rcu_read_unlock();
|
|
|
|
|
cb->args[0] = idx;
|
|
|
|
|
|
|
|
|
|
return skb->len;
|
|
|
|
|
return fib_rules_dump(skb, cb, AF_DECnet);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static struct fib_rules_ops dn_fib_rules_ops = {
|
|
|
|
|
.family = AF_DECnet,
|
|
|
|
|
.rule_size = sizeof(struct dn_fib_rule),
|
|
|
|
|
.action = dn_fib_rule_action,
|
|
|
|
|
.match = dn_fib_rule_match,
|
|
|
|
|
.configure = dn_fib_rule_configure,
|
|
|
|
|
.compare = dn_fib_rule_compare,
|
|
|
|
|
.fill = dn_fib_rule_fill,
|
|
|
|
|
.default_pref = dn_fib_rule_default_pref,
|
|
|
|
|
.nlgroup = RTNLGRP_DECnet_RULE,
|
|
|
|
|
.policy = dn_fib_rule_policy,
|
|
|
|
|
.rules_list = &dn_fib_rules,
|
|
|
|
|
.owner = THIS_MODULE,
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
void __init dn_fib_rules_init(void)
|
|
|
|
|
{
|
|
|
|
|
INIT_HLIST_HEAD(&dn_fib_rules);
|
|
|
|
|
hlist_add_head(&default_rule.r_hlist, &dn_fib_rules);
|
|
|
|
|
register_netdevice_notifier(&dn_fib_rules_notifier);
|
|
|
|
|
list_add_tail(&default_rule.common.list, &dn_fib_rules);
|
|
|
|
|
fib_rules_register(&dn_fib_rules_ops);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void __exit dn_fib_rules_cleanup(void)
|
|
|
|
|
{
|
|
|
|
|
unregister_netdevice_notifier(&dn_fib_rules_notifier);
|
|
|
|
|
fib_rules_unregister(&dn_fib_rules_ops);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|