korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-15 06:55:13 +08:00
Code Issues Packages Projects Releases Wiki Activity

netfilter: nf_tables: set backend .flush always succeeds

Browse Source 
.flush is always successful since this results from iterating over the
set elements to toggle mark the element as inactive in the next
generation.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso 2023-10-18 22:20:23 +02:00
parent 26cec9d414
commit 6509a2e410
6 changed files with 7 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/net/netfilter/nf_tables.h
View File

@ -449,7 +449,7 @@ struct nft_set_ops {
void * (*deactivate)(const struct net *net,
const struct nft_set *set,
const struct nft_set_elem *elem);
bool (*flush)(const struct net *net,
void (*flush)(const struct net *net,
const struct nft_set *set,
void *priv);
void (*remove)(const struct net *net,

9
net/netfilter/nf_tables_api.c
View File

@ -7146,17 +7146,13 @@ static int nft_setelem_flush(const struct nft_ctx *ctx,
struct nft_set_elem *elem)
{
struct nft_trans *trans;
int err;
trans = nft_trans_alloc_gfp(ctx, NFT_MSG_DELSETELEM,
sizeof(struct nft_trans_elem), GFP_ATOMIC);
if (!trans)
return -ENOMEM;
if (!set->ops->flush(ctx->net, set, elem->priv)) {
err = -ENOENT;
goto err1;
}
set->ops->flush(ctx->net, set, elem->priv);
set->ndeact++;
nft_setelem_data_deactivate(ctx->net, set, elem);
@ -7165,9 +7161,6 @@ static int nft_setelem_flush(const struct nft_ctx *ctx,
nft_trans_commit_list_add_tail(ctx->net, trans);
return 0;
err1:
kfree(trans);
return err;
}
static int __nft_set_catchall_flush(const struct nft_ctx *ctx,

4
net/netfilter/nft_set_bitmap.c
View File

@ -174,7 +174,7 @@ static void nft_bitmap_activate(const struct net *net,
nft_set_elem_change_active(net, set, &be->ext);
}
static bool nft_bitmap_flush(const struct net *net,
static void nft_bitmap_flush(const struct net *net,
const struct nft_set *set, void *_be)
{
struct nft_bitmap *priv = nft_set_priv(set);
@ -186,8 +186,6 @@ static bool nft_bitmap_flush(const struct net *net,
/* Enter 10 state, similar to deactivation. */
priv->bitmap[idx] &= ~(genmask << off);
nft_set_elem_change_active(net, set, &be->ext);
return true;
}
static void *nft_bitmap_deactivate(const struct net *net,

7
net/netfilter/nft_set_hash.c
View File

@ -192,14 +192,12 @@ static void nft_rhash_activate(const struct net *net, const struct nft_set *set,
nft_set_elem_change_active(net, set, &he->ext);
}
static bool nft_rhash_flush(const struct net *net,
static void nft_rhash_flush(const struct net *net,
const struct nft_set *set, void *priv)
{
struct nft_rhash_elem *he = priv;
nft_set_elem_change_active(net, set, &he->ext);
return true;
}
static void *nft_rhash_deactivate(const struct net *net,
@ -590,13 +588,12 @@ static void nft_hash_activate(const struct net *net, const struct nft_set *set,
nft_set_elem_change_active(net, set, &he->ext);
}
static bool nft_hash_flush(const struct net *net,
static void nft_hash_flush(const struct net *net,
const struct nft_set *set, void *priv)
{
struct nft_hash_elem *he = priv;
nft_set_elem_change_active(net, set, &he->ext);
return true;
}
static void *nft_hash_deactivate(const struct net *net,

4
net/netfilter/nft_set_pipapo.c
View File

@ -1809,14 +1809,12 @@ static void *nft_pipapo_deactivate(const struct net *net,
*
* Return: true if element was found and deactivated.
*/
static bool nft_pipapo_flush(const struct net *net, const struct nft_set *set,
static void nft_pipapo_flush(const struct net *net, const struct nft_set *set,
void *elem)
{
struct nft_pipapo_elem *e = elem;
nft_set_elem_change_active(net, set, &e->ext);
return true;
}
/**

4
net/netfilter/nft_set_rbtree.c
View File

@ -535,14 +535,12 @@ static void nft_rbtree_activate(const struct net *net,
nft_set_elem_change_active(net, set, &rbe->ext);
}
static bool nft_rbtree_flush(const struct net *net,
static void nft_rbtree_flush(const struct net *net,
const struct nft_set *set, void *priv)
{
struct nft_rbtree_elem *rbe = priv;
nft_set_elem_change_active(net, set, &rbe->ext);
return true;
}
static void *nft_rbtree_deactivate(const struct net *net,