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Diffstat (limited to 'net/decnet/dn_rules.c')
-rw-r--r--net/decnet/dn_rules.c151
1 files changed, 45 insertions, 106 deletions
diff --git a/net/decnet/dn_rules.c b/net/decnet/dn_rules.c
index 3e0c882c90b..faf7cc3483f 100644
--- a/net/decnet/dn_rules.c
+++ b/net/decnet/dn_rules.c
@@ -23,6 +23,7 @@
#include <linux/spinlock.h>
#include <linux/list.h>
#include <linux/rcupdate.h>
+#include <linux/export.h>
#include <net/neighbour.h>
#include <net/dst.h>
#include <net/flow.h>
@@ -31,8 +32,9 @@
#include <net/dn_fib.h>
#include <net/dn_neigh.h>
#include <net/dn_dev.h>
+#include <net/dn_route.h>
-static struct fib_rules_ops dn_fib_rules_ops;
+static struct fib_rules_ops *dn_fib_rules_ops;
struct dn_fib_rule
{
@@ -45,32 +47,18 @@ struct dn_fib_rule
__le16 dstmask;
__le16 srcmap;
u8 flags;
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
- u32 fwmark;
- u32 fwmask;
-#endif
};
-static struct dn_fib_rule default_rule = {
- .common = {
- .refcnt = ATOMIC_INIT(2),
- .pref = 0x7fff,
- .table = RT_TABLE_MAIN,
- .action = FR_ACT_TO_TBL,
- },
-};
-
-static LIST_HEAD(dn_fib_rules);
-
-int dn_fib_lookup(struct flowi *flp, struct dn_fib_res *res)
+int dn_fib_lookup(struct flowidn *flp, struct dn_fib_res *res)
{
struct fib_lookup_arg arg = {
.result = res,
};
int err;
- err = fib_rules_lookup(&dn_fib_rules_ops, flp, 0, &arg);
+ err = fib_rules_lookup(dn_fib_rules_ops,
+ flowidn_to_flowi(flp), 0, &arg);
res->r = arg.rule;
return err;
@@ -79,6 +67,7 @@ int dn_fib_lookup(struct flowi *flp, struct dn_fib_res *res)
static int dn_fib_rule_action(struct fib_rule *rule, struct flowi *flp,
int flags, struct fib_lookup_arg *arg)
{
+ struct flowidn *fld = &flp->u.dn;
int err = -EAGAIN;
struct dn_fib_table *tbl;
@@ -104,49 +93,39 @@ static int dn_fib_rule_action(struct fib_rule *rule, struct flowi *flp,
if (tbl == NULL)
goto errout;
- err = tbl->lookup(tbl, flp, (struct dn_fib_res *)arg->result);
+ err = tbl->lookup(tbl, fld, (struct dn_fib_res *)arg->result);
if (err > 0)
err = -EAGAIN;
errout:
return err;
}
-static struct nla_policy dn_fib_rule_policy[FRA_MAX+1] __read_mostly = {
- [FRA_IFNAME] = { .type = NLA_STRING, .len = IFNAMSIZ - 1 },
- [FRA_PRIORITY] = { .type = NLA_U32 },
- [FRA_SRC] = { .type = NLA_U16 },
- [FRA_DST] = { .type = NLA_U16 },
- [FRA_FWMARK] = { .type = NLA_U32 },
- [FRA_FWMASK] = { .type = NLA_U32 },
- [FRA_TABLE] = { .type = NLA_U32 },
+static const struct nla_policy dn_fib_rule_policy[FRA_MAX+1] = {
+ FRA_GENERIC_POLICY,
};
static int dn_fib_rule_match(struct fib_rule *rule, struct flowi *fl, int flags)
{
struct dn_fib_rule *r = (struct dn_fib_rule *)rule;
- u16 daddr = fl->fld_dst;
- u16 saddr = fl->fld_src;
+ struct flowidn *fld = &fl->u.dn;
+ __le16 daddr = fld->daddr;
+ __le16 saddr = fld->saddr;
if (((saddr ^ r->src) & r->srcmask) ||
((daddr ^ r->dst) & r->dstmask))
return 0;
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
- if ((r->fwmark ^ fl->fld_fwmark) & r->fwmask)
- return 0;
-#endif
-
return 1;
}
static int dn_fib_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
- struct nlmsghdr *nlh, struct fib_rule_hdr *frh,
+ struct fib_rule_hdr *frh,
struct nlattr **tb)
{
int err = -EINVAL;
struct dn_fib_rule *r = (struct dn_fib_rule *)rule;
- if (frh->src_len > 16 || frh->dst_len > 16 || frh->tos)
+ if (frh->tos)
goto errout;
if (rule->table == RT_TABLE_UNSPEC) {
@@ -163,25 +142,11 @@ static int dn_fib_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
}
}
- if (tb[FRA_SRC])
- r->src = nla_get_u16(tb[FRA_SRC]);
+ if (frh->src_len)
+ r->src = nla_get_le16(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]);
- if (r->fwmark)
- /* compatibility: if the mark value is non-zero all bits
- * are compared unless a mask is explicitly specified.
- */
- r->fwmask = 0xFFFFFFFF;
- }
-
- if (tb[FRA_FWMASK])
- r->fwmask = nla_get_u32(tb[FRA_FWMASK]);
-#endif
+ if (frh->dst_len)
+ r->dst = nla_get_le16(tb[FRA_DST]);
r->src_len = frh->src_len;
r->srcmask = dnet_make_mask(r->src_len);
@@ -203,34 +168,26 @@ static int dn_fib_rule_compare(struct fib_rule *rule, struct fib_rule_hdr *frh,
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;
-
- if (tb[FRA_FWMASK] && (r->fwmask != nla_get_u32(tb[FRA_FWMASK])))
+ if (frh->src_len && (r->src != nla_get_le16(tb[FRA_SRC])))
return 0;
-#endif
- if (tb[FRA_SRC] && (r->src != nla_get_u16(tb[FRA_SRC])))
- return 0;
-
- if (tb[FRA_DST] && (r->dst != nla_get_u16(tb[FRA_DST])))
+ if (frh->dst_len && (r->dst != nla_get_le16(tb[FRA_DST])))
return 0;
return 1;
}
-unsigned dnet_addr_type(__le16 addr)
+unsigned int dnet_addr_type(__le16 addr)
{
- struct flowi fl = { .nl_u = { .dn_u = { .daddr = addr } } };
+ struct flowidn fld = { .daddr = addr };
struct dn_fib_res res;
- unsigned ret = RTN_UNICAST;
+ unsigned int ret = RTN_UNICAST;
struct dn_fib_table *tb = dn_fib_get_table(RT_TABLE_LOCAL, 0);
res.r = NULL;
if (tb) {
- if (!tb->lookup(tb, &fl, &res)) {
+ if (!tb->lookup(tb, &fld, &res)) {
ret = res.type;
dn_fib_res_put(&res);
}
@@ -239,78 +196,60 @@ unsigned dnet_addr_type(__le16 addr)
}
static int dn_fib_rule_fill(struct fib_rule *rule, struct sk_buff *skb,
- struct nlmsghdr *nlh, struct fib_rule_hdr *frh)
+ struct fib_rule_hdr *frh)
{
struct dn_fib_rule *r = (struct dn_fib_rule *)rule;
- frh->family = AF_DECnet;
frh->dst_len = r->dst_len;
frh->src_len = r->src_len;
frh->tos = 0;
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
- if (r->fwmark)
- NLA_PUT_U32(skb, FRA_FWMARK, r->fwmark);
- if (r->fwmask || r->fwmark)
- NLA_PUT_U32(skb, FRA_FWMASK, r->fwmask);
-#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);
-
+ if ((r->dst_len &&
+ nla_put_le16(skb, FRA_DST, r->dst)) ||
+ (r->src_len &&
+ nla_put_le16(skb, FRA_SRC, r->src)))
+ goto nla_put_failure;
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 0;
-}
-
-int dn_fib_dump_rules(struct sk_buff *skb, struct netlink_callback *cb)
+static void dn_fib_rule_flush_cache(struct fib_rules_ops *ops)
{
- return fib_rules_dump(skb, cb, AF_DECnet);
+ dn_rt_cache_flush(-1);
}
-static struct fib_rules_ops dn_fib_rules_ops = {
+static const struct fib_rules_ops __net_initconst dn_fib_rules_ops_template = {
.family = AF_DECnet,
.rule_size = sizeof(struct dn_fib_rule),
+ .addr_size = sizeof(u16),
.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,
+ .default_pref = fib_default_rule_pref,
+ .flush_cache = dn_fib_rule_flush_cache,
.nlgroup = RTNLGRP_DECnet_RULE,
.policy = dn_fib_rule_policy,
- .rules_list = &dn_fib_rules,
.owner = THIS_MODULE,
+ .fro_net = &init_net,
};
void __init dn_fib_rules_init(void)
{
- list_add_tail(&default_rule.common.list, &dn_fib_rules);
- fib_rules_register(&dn_fib_rules_ops);
+ dn_fib_rules_ops =
+ fib_rules_register(&dn_fib_rules_ops_template, &init_net);
+ BUG_ON(IS_ERR(dn_fib_rules_ops));
+ BUG_ON(fib_default_rule_add(dn_fib_rules_ops, 0x7fff,
+ RT_TABLE_MAIN, 0));
}
void __exit dn_fib_rules_cleanup(void)
{
- fib_rules_unregister(&dn_fib_rules_ops);
+ fib_rules_unregister(dn_fib_rules_ops);
+ rcu_barrier();
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-07 09:59:49 +0000