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netfilter: nf_tables: Carry s_idx in nft_obj_dump_ctx

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Prep work for moving the context into struct netlink_callback scratch
area.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Phil Sutter 2023-10-20 19:34:31 +02:00 committed by Pablo Neira Ayuso
parent ecf49cad80
commit 2eda95cfa2
1 changed files with 5 additions and 4 deletions
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9
net/netfilter/nf_tables_api.c
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@ -7682,6 +7682,7 @@ static void audit_log_obj_reset(const struct nft_table *table,
}
struct nft_obj_dump_ctx {
unsigned int s_idx;
char *table;
u32 type;
};
@ -7689,14 +7690,14 @@ struct nft_obj_dump_ctx {
static int nf_tables_dump_obj(struct sk_buff *skb, struct netlink_callback *cb)
{
const struct nfgenmsg *nfmsg = nlmsg_data(cb->nlh);
const struct nft_table *table;
unsigned int idx = 0, s_idx = cb->args[0];
struct nft_obj_dump_ctx *ctx = cb->data;
struct net *net = sock_net(skb->sk);
int family = nfmsg->nfgen_family;
struct nftables_pernet *nft_net;
const struct nft_table *table;
unsigned int entries = 0;
struct nft_object *obj;
unsigned int idx = 0;
bool reset = false;
int rc = 0;
@ -7715,7 +7716,7 @@ static int nf_tables_dump_obj(struct sk_buff *skb, struct netlink_callback *cb)
list_for_each_entry_rcu(obj, &table->objects, list) {
if (!nft_is_active(net, obj))
goto cont;
if (idx < s_idx)
if (idx < ctx->s_idx)
goto cont;
if (ctx->table && strcmp(ctx->table, table->name))
goto cont;
@ -7745,7 +7746,7 @@ cont:
}
rcu_read_unlock();
cb->args[0] = idx;
ctx->s_idx = idx;
return skb->len;
}