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Diffstat (limited to 'net')
-rw-r--r--net/core/filter.c10
-rw-r--r--net/ipv6/addrconf_core.c13
-rw-r--r--net/ipv6/fib6_rules.c34
-rw-r--r--net/ipv6/ip6_fib.c7
-rw-r--r--net/ipv6/route.c15
5 files changed, 36 insertions, 43 deletions
diff --git a/net/core/filter.c b/net/core/filter.c
index bb8fb2d58fd4..d17347cbeb1e 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -4684,7 +4684,7 @@ static int bpf_ipv6_fib_lookup(struct net *net, struct bpf_fib_lookup *params,
struct inet6_dev *idev;
struct flowi6 fl6;
int strict = 0;
- int oif;
+ int oif, err;
u32 mtu;
/* link local addresses are never forwarded */
@@ -4726,18 +4726,18 @@ static int bpf_ipv6_fib_lookup(struct net *net, struct bpf_fib_lookup *params,
if (unlikely(!tb))
return BPF_FIB_LKUP_RET_NOT_FWDED;
- res.f6i = ipv6_stub->fib6_table_lookup(net, tb, oif, &fl6,
- strict);
+ err = ipv6_stub->fib6_table_lookup(net, tb, oif, &fl6, &res,
+ strict);
} else {
fl6.flowi6_mark = 0;
fl6.flowi6_secid = 0;
fl6.flowi6_tun_key.tun_id = 0;
fl6.flowi6_uid = sock_net_uid(net, NULL);
- res.f6i = ipv6_stub->fib6_lookup(net, oif, &fl6, strict);
+ err = ipv6_stub->fib6_lookup(net, oif, &fl6, &res, strict);
}
- if (unlikely(IS_ERR_OR_NULL(res.f6i) ||
+ if (unlikely(err || IS_ERR_OR_NULL(res.f6i) ||
res.f6i == net->ipv6.fib6_null_entry))
return BPF_FIB_LKUP_RET_NOT_FWDED;
diff --git a/net/ipv6/addrconf_core.c b/net/ipv6/addrconf_core.c
index c4c0203d6836..763a947e0d14 100644
--- a/net/ipv6/addrconf_core.c
+++ b/net/ipv6/addrconf_core.c
@@ -144,18 +144,19 @@ static struct fib6_table *eafnosupport_fib6_get_table(struct net *net, u32 id)
return NULL;
}
-static struct fib6_info *
+static int
eafnosupport_fib6_table_lookup(struct net *net, struct fib6_table *table,
- int oif, struct flowi6 *fl6, int flags)
+ int oif, struct flowi6 *fl6,
+ struct fib6_result *res, int flags)
{
- return NULL;
+ return -EAFNOSUPPORT;
}
-static struct fib6_info *
+static int
eafnosupport_fib6_lookup(struct net *net, int oif, struct flowi6 *fl6,
- int flags)
+ struct fib6_result *res, int flags)
{
- return NULL;
+ return -EAFNOSUPPORT;
}
static void
diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c
index f590446595d8..ab5ac643bae8 100644
--- a/net/ipv6/fib6_rules.c
+++ b/net/ipv6/fib6_rules.c
@@ -61,16 +61,16 @@ unsigned int fib6_rules_seq_read(struct net *net)
}
/* called with rcu lock held; no reference taken on fib6_info */
-struct fib6_info *fib6_lookup(struct net *net, int oif, struct flowi6 *fl6,
- int flags)
+int fib6_lookup(struct net *net, int oif, struct flowi6 *fl6,
+ struct fib6_result *res, int flags)
{
- struct fib6_info *f6i;
int err;
if (net->ipv6.fib6_has_custom_rules) {
struct fib_lookup_arg arg = {
.lookup_ptr = fib6_table_lookup,
.lookup_data = &oif,
+ .result = res,
.flags = FIB_LOOKUP_NOREF,
};
@@ -78,19 +78,15 @@ struct fib6_info *fib6_lookup(struct net *net, int oif, struct flowi6 *fl6,
err = fib_rules_lookup(net->ipv6.fib6_rules_ops,
flowi6_to_flowi(fl6), flags, &arg);
- if (err)
- return ERR_PTR(err);
-
- f6i = arg.result ? : net->ipv6.fib6_null_entry;
} else {
- f6i = fib6_table_lookup(net, net->ipv6.fib6_local_tbl,
- oif, fl6, flags);
- if (!f6i || f6i == net->ipv6.fib6_null_entry)
- f6i = fib6_table_lookup(net, net->ipv6.fib6_main_tbl,
- oif, fl6, flags);
+ err = fib6_table_lookup(net, net->ipv6.fib6_local_tbl, oif,
+ fl6, res, flags);
+ if (err || res->f6i == net->ipv6.fib6_null_entry)
+ err = fib6_table_lookup(net, net->ipv6.fib6_main_tbl,
+ oif, fl6, res, flags);
}
- return f6i;
+ return err;
}
struct dst_entry *fib6_rule_lookup(struct net *net, struct flowi6 *fl6,
@@ -157,10 +153,10 @@ static int fib6_rule_saddr(struct net *net, struct fib_rule *rule, int flags,
static int fib6_rule_action_alt(struct fib_rule *rule, struct flowi *flp,
int flags, struct fib_lookup_arg *arg)
{
+ struct fib6_result *res = arg->result;
struct flowi6 *flp6 = &flp->u.ip6;
struct net *net = rule->fr_net;
struct fib6_table *table;
- struct fib6_info *f6i;
int err = -EAGAIN, *oif;
u32 tb_id;
@@ -182,14 +178,10 @@ static int fib6_rule_action_alt(struct fib_rule *rule, struct flowi *flp,
return -EAGAIN;
oif = (int *)arg->lookup_data;
- f6i = fib6_table_lookup(net, table, *oif, flp6, flags);
- if (f6i != net->ipv6.fib6_null_entry) {
+ err = fib6_table_lookup(net, table, *oif, flp6, res, flags);
+ if (!err && res->f6i != net->ipv6.fib6_null_entry)
err = fib6_rule_saddr(net, rule, flags, flp6,
- fib6_info_nh_dev(f6i));
-
- if (likely(!err))
- arg->result = f6i;
- }
+ res->nh->fib_nh_dev);
return err;
}
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 46f54a5bb1f0..b47e15df9769 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -354,10 +354,11 @@ struct dst_entry *fib6_rule_lookup(struct net *net, struct flowi6 *fl6,
}
/* called with rcu lock held; no reference taken on fib6_info */
-struct fib6_info *fib6_lookup(struct net *net, int oif, struct flowi6 *fl6,
- int flags)
+int fib6_lookup(struct net *net, int oif, struct flowi6 *fl6,
+ struct fib6_result *res, int flags)
{
- return fib6_table_lookup(net, net->ipv6.fib6_main_tbl, oif, fl6, flags);
+ return fib6_table_lookup(net, net->ipv6.fib6_main_tbl, oif, fl6,
+ res, flags);
}
static void __net_init fib6_tables_init(struct net *net)
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 405e0784d13b..5a1e1176c33c 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1839,11 +1839,10 @@ void rt6_age_exceptions(struct fib6_info *rt,
}
/* must be called with rcu lock held */
-struct fib6_info *fib6_table_lookup(struct net *net, struct fib6_table *table,
- int oif, struct flowi6 *fl6, int strict)
+int fib6_table_lookup(struct net *net, struct fib6_table *table, int oif,
+ struct flowi6 *fl6, struct fib6_result *res, int strict)
{
struct fib6_node *fn, *saved_fn;
- struct fib6_result res;
fn = fib6_node_lookup(&table->tb6_root, &fl6->daddr, &fl6->saddr);
saved_fn = fn;
@@ -1852,8 +1851,8 @@ struct fib6_info *fib6_table_lookup(struct net *net, struct fib6_table *table,
oif = 0;
redo_rt6_select:
- rt6_select(net, fn, oif, &res, strict);
- if (res.f6i == net->ipv6.fib6_null_entry) {
+ rt6_select(net, fn, oif, res, strict);
+ if (res->f6i == net->ipv6.fib6_null_entry) {
fn = fib6_backtrack(fn, &fl6->saddr);
if (fn)
goto redo_rt6_select;
@@ -1865,9 +1864,9 @@ redo_rt6_select:
}
}
- trace_fib6_table_lookup(net, &res, table, fl6);
+ trace_fib6_table_lookup(net, res, table, fl6);
- return res.f6i;
+ return 0;
}
struct rt6_info *ip6_pol_route(struct net *net, struct fib6_table *table,
@@ -1885,7 +1884,7 @@ struct rt6_info *ip6_pol_route(struct net *net, struct fib6_table *table,
rcu_read_lock();
- res.f6i = fib6_table_lookup(net, table, oif, fl6, strict);
+ fib6_table_lookup(net, table, oif, fl6, &res, strict);
if (res.f6i == net->ipv6.fib6_null_entry) {
rt = net->ipv6.ip6_null_entry;
rcu_read_unlock();
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-12 22:35:40 +0300