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authorFlorian Westphal <fw@strlen.de>2017-12-08 17:01:53 +0100
committerPablo Neira Ayuso <pablo@netfilter.org>2018-01-08 18:01:12 +0100
commit03d13b6868a261f24fbc82b6a2d5823df8d075d3 (patch)
tree562f6c03438b662bdc985a4ddc8892a7bf892eaa /include/linux/netfilter
parentnetfilter: reduce NF_MAX_HOOKS define (diff)
downloadlinux-dev-03d13b6868a261f24fbc82b6a2d5823df8d075d3.tar.xz
linux-dev-03d13b6868a261f24fbc82b6a2d5823df8d075d3.zip
netfilter: xtables: add and use xt_request_find_table_lock
currently we always return -ENOENT to userspace if we can't find a particular table, or if the table initialization fails. Followup patch will make nat table init fail in case nftables already registered a nat hook so this change makes xt_find_table_lock return an ERR_PTR to return the errno value reported from the table init function. Add xt_request_find_table_lock as try_then_request_module replacement and use it where needed. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/linux/netfilter')
-rw-r--r--include/linux/netfilter/x_tables.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h
index 33f7530f96b9..1313b35c3ab7 100644
--- a/include/linux/netfilter/x_tables.h
+++ b/include/linux/netfilter/x_tables.h
@@ -320,6 +320,8 @@ int xt_find_revision(u8 af, const char *name, u8 revision, int target,
struct xt_table *xt_find_table_lock(struct net *net, u_int8_t af,
const char *name);
+struct xt_table *xt_request_find_table_lock(struct net *net, u_int8_t af,
+ const char *name);
void xt_table_unlock(struct xt_table *t);
int xt_proto_init(struct net *net, u_int8_t af);