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authorPhil Sutter <phil@nwl.cc>2023-09-29 21:19:21 +0200
committerFlorian Westphal <fw@strlen.de>2023-10-10 16:34:28 +0200
commit8194d599bc01bc6e89b14af436803cf90d0a8650 (patch)
tree6ae4b96680825a6951e095c05f4a6d901c9352f2 /net/netfilter/nf_tables_api.c
parent405c8fd62d612dd0e1d5ca59903449616453a56d (diff)
netfilter: nf_tables: Carry s_idx in nft_rule_dump_ctx
In order to move the context into struct netlink_callback's scratch area, the latter must be unused first. Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Florian Westphal <fw@strlen.de>
Diffstat (limited to 'net/netfilter/nf_tables_api.c')
-rw-r--r--net/netfilter/nf_tables_api.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 567c414351da..a2e6c826bd08 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -3441,6 +3441,7 @@ static void audit_log_rule_reset(const struct nft_table *table,
}
struct nft_rule_dump_ctx {
+ unsigned int s_idx;
char *table;
char *chain;
bool reset;
@@ -3455,7 +3456,6 @@ static int __nf_tables_dump_rules(struct sk_buff *skb,
struct nft_rule_dump_ctx *ctx = cb->data;
struct net *net = sock_net(skb->sk);
const struct nft_rule *rule, *prule;
- unsigned int s_idx = cb->args[0];
unsigned int entries = 0;
int ret = 0;
u64 handle;
@@ -3464,7 +3464,7 @@ static int __nf_tables_dump_rules(struct sk_buff *skb,
list_for_each_entry_rcu(rule, &chain->rules, list) {
if (!nft_is_active(net, rule))
goto cont_skip;
- if (*idx < s_idx)
+ if (*idx < ctx->s_idx)
goto cont;
if (prule)
handle = prule->handle;
@@ -3498,7 +3498,7 @@ static int nf_tables_dump_rules(struct sk_buff *skb,
struct netlink_callback *cb)
{
const struct nfgenmsg *nfmsg = nlmsg_data(cb->nlh);
- const struct nft_rule_dump_ctx *ctx = cb->data;
+ struct nft_rule_dump_ctx *ctx = cb->data;
struct nft_table *table;
const struct nft_chain *chain;
unsigned int idx = 0;
@@ -3547,7 +3547,7 @@ static int nf_tables_dump_rules(struct sk_buff *skb,
done:
rcu_read_unlock();
- cb->args[0] = idx;
+ ctx->s_idx = idx;
return skb->len;
}