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Diffstat (limited to 'net/ipv4/fib_semantics.c')
-rw-r--r--net/ipv4/fib_semantics.c64
1 files changed, 33 insertions, 31 deletions
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 1351a2617dce..c7912866d987 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -47,8 +47,6 @@
#include "fib_lookup.h"
-#define FSprintk(a...)
-
static DEFINE_SPINLOCK(fib_info_lock);
static struct hlist_head *fib_info_hash;
static struct hlist_head *fib_info_laddrhash;
@@ -145,7 +143,7 @@ static const struct
void free_fib_info(struct fib_info *fi)
{
if (fi->fib_dead == 0) {
- printk("Freeing alive fib_info %p\n", fi);
+ printk(KERN_WARNING "Freeing alive fib_info %p\n", fi);
return;
}
change_nexthops(fi) {
@@ -196,6 +194,15 @@ static __inline__ int nh_comp(const struct fib_info *fi, const struct fib_info *
return 0;
}
+static inline unsigned int fib_devindex_hashfn(unsigned int val)
+{
+ unsigned int mask = DEVINDEX_HASHSIZE - 1;
+
+ return (val ^
+ (val >> DEVINDEX_HASHBITS) ^
+ (val >> (DEVINDEX_HASHBITS * 2))) & mask;
+}
+
static inline unsigned int fib_info_hashfn(const struct fib_info *fi)
{
unsigned int mask = (fib_hash_size - 1);
@@ -204,6 +211,9 @@ static inline unsigned int fib_info_hashfn(const struct fib_info *fi)
val ^= fi->fib_protocol;
val ^= (__force u32)fi->fib_prefsrc;
val ^= fi->fib_priority;
+ for_nexthops(fi) {
+ val ^= fib_devindex_hashfn(nh->nh_oif);
+ } endfor_nexthops(fi)
return (val ^ (val >> 7) ^ (val >> 12)) & mask;
}
@@ -234,15 +244,6 @@ static struct fib_info *fib_find_info(const struct fib_info *nfi)
return NULL;
}
-static inline unsigned int fib_devindex_hashfn(unsigned int val)
-{
- unsigned int mask = DEVINDEX_HASHSIZE - 1;
-
- return (val ^
- (val >> DEVINDEX_HASHBITS) ^
- (val >> (DEVINDEX_HASHBITS * 2))) & mask;
-}
-
/* Check, that the gateway is already configured.
Used only by redirect accept routine.
*/
@@ -320,11 +321,11 @@ void rtmsg_fib(int event, __be32 key, struct fib_alias *fa,
kfree_skb(skb);
goto errout;
}
- err = rtnl_notify(skb, info->pid, RTNLGRP_IPV4_ROUTE,
+ err = rtnl_notify(skb, info->nl_net, info->pid, RTNLGRP_IPV4_ROUTE,
info->nlh, GFP_KERNEL);
errout:
if (err < 0)
- rtnl_set_sk_err(RTNLGRP_IPV4_ROUTE, err);
+ rtnl_set_sk_err(info->nl_net, RTNLGRP_IPV4_ROUTE, err);
}
/* Return the first fib alias matching TOS with
@@ -346,7 +347,7 @@ struct fib_alias *fib_find_alias(struct list_head *fah, u8 tos, u32 prio)
}
int fib_detect_death(struct fib_info *fi, int order,
- struct fib_info **last_resort, int *last_idx, int *dflt)
+ struct fib_info **last_resort, int *last_idx, int dflt)
{
struct neighbour *n;
int state = NUD_NONE;
@@ -358,10 +359,10 @@ int fib_detect_death(struct fib_info *fi, int order,
}
if (state==NUD_REACHABLE)
return 0;
- if ((state&NUD_VALID) && order != *dflt)
+ if ((state&NUD_VALID) && order != dflt)
return 0;
if ((state&NUD_VALID) ||
- (*last_idx<0 && order > *dflt)) {
+ (*last_idx<0 && order > dflt)) {
*last_resort = fi;
*last_idx = order;
}
@@ -518,7 +519,9 @@ static int fib_check_nh(struct fib_config *cfg, struct fib_info *fi,
struct fib_nh *nh)
{
int err;
+ struct net *net;
+ net = cfg->fc_nlinfo.nl_net;
if (nh->nh_gw) {
struct fib_result res;
@@ -531,9 +534,9 @@ static int fib_check_nh(struct fib_config *cfg, struct fib_info *fi,
if (cfg->fc_scope >= RT_SCOPE_LINK)
return -EINVAL;
- if (inet_addr_type(nh->nh_gw) != RTN_UNICAST)
+ if (inet_addr_type(net, nh->nh_gw) != RTN_UNICAST)
return -EINVAL;
- if ((dev = __dev_get_by_index(&init_net, nh->nh_oif)) == NULL)
+ if ((dev = __dev_get_by_index(net, nh->nh_oif)) == NULL)
return -ENODEV;
if (!(dev->flags&IFF_UP))
return -ENETDOWN;
@@ -556,7 +559,7 @@ static int fib_check_nh(struct fib_config *cfg, struct fib_info *fi,
/* It is not necessary, but requires a bit of thinking */
if (fl.fl4_scope < RT_SCOPE_LINK)
fl.fl4_scope = RT_SCOPE_LINK;
- if ((err = fib_lookup(&fl, &res)) != 0)
+ if ((err = fib_lookup(net, &fl, &res)) != 0)
return err;
}
err = -EINVAL;
@@ -580,7 +583,7 @@ out:
if (nh->nh_flags&(RTNH_F_PERVASIVE|RTNH_F_ONLINK))
return -EINVAL;
- in_dev = inetdev_by_index(nh->nh_oif);
+ in_dev = inetdev_by_index(net, nh->nh_oif);
if (in_dev == NULL)
return -ENODEV;
if (!(in_dev->dev->flags&IFF_UP)) {
@@ -605,10 +608,10 @@ static inline unsigned int fib_laddr_hashfn(__be32 val)
static struct hlist_head *fib_hash_alloc(int bytes)
{
if (bytes <= PAGE_SIZE)
- return kmalloc(bytes, GFP_KERNEL);
+ return kzalloc(bytes, GFP_KERNEL);
else
return (struct hlist_head *)
- __get_free_pages(GFP_KERNEL, get_order(bytes));
+ __get_free_pages(GFP_KERNEL | __GFP_ZERO, get_order(bytes));
}
static void fib_hash_free(struct hlist_head *hash, int bytes)
@@ -712,12 +715,8 @@ struct fib_info *fib_create_info(struct fib_config *cfg)
if (!new_info_hash || !new_laddrhash) {
fib_hash_free(new_info_hash, bytes);
fib_hash_free(new_laddrhash, bytes);
- } else {
- memset(new_info_hash, 0, bytes);
- memset(new_laddrhash, 0, bytes);
-
+ } else
fib_hash_move(new_info_hash, new_laddrhash, new_size);
- }
if (!fib_hash_size)
goto failure;
@@ -799,7 +798,8 @@ struct fib_info *fib_create_info(struct fib_config *cfg)
if (nhs != 1 || nh->nh_gw)
goto err_inval;
nh->nh_scope = RT_SCOPE_NOWHERE;
- nh->nh_dev = dev_get_by_index(&init_net, fi->fib_nh->nh_oif);
+ nh->nh_dev = dev_get_by_index(cfg->fc_nlinfo.nl_net,
+ fi->fib_nh->nh_oif);
err = -ENODEV;
if (nh->nh_dev == NULL)
goto failure;
@@ -813,7 +813,8 @@ struct fib_info *fib_create_info(struct fib_config *cfg)
if (fi->fib_prefsrc) {
if (cfg->fc_type != RTN_LOCAL || !cfg->fc_dst ||
fi->fib_prefsrc != cfg->fc_dst)
- if (inet_addr_type(fi->fib_prefsrc) != RTN_LOCAL)
+ if (inet_addr_type(cfg->fc_nlinfo.nl_net,
+ fi->fib_prefsrc) != RTN_LOCAL)
goto err_inval;
}
@@ -914,7 +915,8 @@ int fib_semantic_match(struct list_head *head, const struct flowi *flp,
continue;
default:
- printk(KERN_DEBUG "impossible 102\n");
+ printk(KERN_WARNING "fib_semantic_match bad type %#x\n",
+ fa->fa_type);
return -EINVAL;
}
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-24 12:09:51 +0300