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authorNamjae Jeon <linkinjeon@kernel.org>2024-05-01 21:41:50 +0900
committerSteve French <stfrench@microsoft.com>2024-05-04 23:53:35 -0500
commitcc00bc83f26eb8f2d8d9f56b949b62fd774d8432 (patch)
tree8a5ace6a9b0be8251921ae2f567afe50b785664b
parentbc642d7bfdac3bfd838a1cd6651955ae2eb8535a (diff)
downloadlinux-cc00bc83f26eb8f2d8d9f56b949b62fd774d8432.tar.gz
ksmbd: off ipv6only for both ipv4/ipv6 binding
ΕΛΕΝΗ reported that ksmbd binds to the IPV6 wildcard (::) by default for ipv4 and ipv6 binding. So IPV4 connections are successful only when the Linux system parameter bindv6only is set to 0 [default value]. If this parameter is set to 1, then the ipv6 wildcard only represents any IPV6 address. Samba creates different sockets for ipv4 and ipv6 by default. This patch off sk_ipv6only to support IPV4/IPV6 connections without creating two sockets. Cc: stable@vger.kernel.org Reported-by: ΕΛΕΝΗ ΤΖΑΒΕΛΛΑ <helentzavellas@yahoo.gr> Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
-rw-r--r--fs/smb/server/transport_tcp.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/smb/server/transport_tcp.c b/fs/smb/server/transport_tcp.c
index 002a3f0dc7c588..6633fa78e9b96b 100644
--- a/fs/smb/server/transport_tcp.c
+++ b/fs/smb/server/transport_tcp.c
@@ -448,6 +448,10 @@ static int create_socket(struct interface *iface)
sin6.sin6_family = PF_INET6;
sin6.sin6_addr = in6addr_any;
sin6.sin6_port = htons(server_conf.tcp_port);
+
+ lock_sock(ksmbd_socket->sk);
+ ksmbd_socket->sk->sk_ipv6only = false;
+ release_sock(ksmbd_socket->sk);
}
ksmbd_tcp_nodelay(ksmbd_socket);