From: Kees Cook <kees@kernel.org>
To: Jakub Kicinski <kuba@kernel.org>
Cc: Kees Cook <kees@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Paolo Abeni <pabeni@redhat.com>, Simon Horman <horms@kernel.org>,
Kuniyuki Iwashima <kuniyu@google.com>,
Willem de Bruijn <willemb@google.com>,
netdev@vger.kernel.org
Subject: [PATCH 6/6 net-next] net: Convert proto callbacks from sockaddr to sockaddr_unspec
Date: Wed, 23 Jul 2025 16:19:13 -0700 [thread overview]
Message-ID: <20250723231921.2293685-6-kees@kernel.org> (raw)
In-Reply-To: <20250723230354.work.571-kees@kernel.org>
Convert struct proto pre_connect(), connect(), bind(), and
bind_add() callback function prototypes from struct sockaddr to struct
sockaddr_unspec. This does not change per-implementation use of sockaddr
for passing around an arbitrarily sized sockaddr struct. Those will be
addressed in future patches.
Additionally removes the no longer referenced struct sockaddr from
include/net/inet_common.h.
No binary changes expected.
Signed-off-by: Kees Cook <kees@kernel.org>
---
include/net/inet_common.h | 5 ++---
include/net/ip.h | 4 ++--
include/net/ipv6.h | 8 ++++----
include/net/ipv6_stubs.h | 2 +-
include/net/ping.h | 2 +-
include/net/sock.h | 10 +++++-----
include/net/tcp.h | 2 +-
include/net/udp.h | 2 +-
fs/dlm/lowcomms.c | 4 ++--
net/core/filter.c | 4 ++--
net/core/sock.c | 2 +-
net/ieee802154/socket.c | 12 ++++++------
net/ipv4/af_inet.c | 14 +++++++-------
net/ipv4/datagram.c | 4 ++--
net/ipv4/ping.c | 8 ++++----
net/ipv4/raw.c | 3 ++-
net/ipv4/tcp_ipv4.c | 4 ++--
net/ipv4/udp.c | 6 ++++--
net/ipv6/af_inet6.c | 6 +++---
net/ipv6/datagram.c | 8 ++++----
net/ipv6/ping.c | 2 +-
net/ipv6/raw.c | 3 ++-
net/ipv6/tcp_ipv6.c | 6 +++---
net/ipv6/udp.c | 5 +++--
net/l2tp/l2tp_ip.c | 6 ++++--
net/l2tp/l2tp_ip6.c | 5 +++--
net/mptcp/pm_kernel.c | 4 ++--
net/mptcp/protocol.c | 7 ++++---
net/phonet/pep.c | 3 ++-
net/phonet/socket.c | 4 ++--
net/sctp/socket.c | 9 +++++----
31 files changed, 87 insertions(+), 77 deletions(-)
diff --git a/include/net/inet_common.h b/include/net/inet_common.h
index a339a0e2e7e7..3e0e98565358 100644
--- a/include/net/inet_common.h
+++ b/include/net/inet_common.h
@@ -19,7 +19,6 @@ struct msghdr;
struct net;
struct page;
struct sock;
-struct sockaddr;
struct socket;
int inet_release(struct socket *sock);
@@ -43,7 +42,7 @@ int inet_listen(struct socket *sock, int backlog);
int __inet_listen_sk(struct sock *sk, int backlog);
void inet_sock_destruct(struct sock *sk);
int inet_bind(struct socket *sock, struct sockaddr_unspec *uaddr, int addr_len);
-int inet_bind_sk(struct sock *sk, struct sockaddr *uaddr, int addr_len);
+int inet_bind_sk(struct sock *sk, struct sockaddr_unspec *uaddr, int addr_len);
/* Don't allocate port at this moment, defer to connect. */
#define BIND_FORCE_ADDRESS_NO_PORT (1 << 0)
/* Grab and release socket lock. */
@@ -52,7 +51,7 @@ int inet_bind_sk(struct sock *sk, struct sockaddr *uaddr, int addr_len);
#define BIND_FROM_BPF (1 << 2)
/* Skip CAP_NET_BIND_SERVICE check. */
#define BIND_NO_CAP_NET_BIND_SERVICE (1 << 3)
-int __inet_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len,
+int __inet_bind(struct sock *sk, struct sockaddr_unspec *uaddr, int addr_len,
u32 flags);
int inet_getname(struct socket *sock, struct sockaddr *uaddr,
int peer);
diff --git a/include/net/ip.h b/include/net/ip.h
index befcba575129..89999c935c5a 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -261,8 +261,8 @@ static inline u8 ip_sendmsg_scope(const struct inet_sock *inet,
}
/* datagram.c */
-int __ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len);
-int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len);
+int __ip4_datagram_connect(struct sock *sk, struct sockaddr_unspec *uaddr, int addr_len);
+int ip4_datagram_connect(struct sock *sk, struct sockaddr_unspec *uaddr, int addr_len);
void ip4_datagram_release_cb(struct sock *sk);
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 5c5ccb84a188..7ce240d95ffd 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -1188,10 +1188,10 @@ int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
int ipv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen);
-int __ip6_datagram_connect(struct sock *sk, struct sockaddr *addr,
+int __ip6_datagram_connect(struct sock *sk, struct sockaddr_unspec *addr,
int addr_len);
-int ip6_datagram_connect(struct sock *sk, struct sockaddr *addr, int addr_len);
-int ip6_datagram_connect_v6_only(struct sock *sk, struct sockaddr *addr,
+int ip6_datagram_connect(struct sock *sk, struct sockaddr_unspec *addr, int addr_len);
+int ip6_datagram_connect_v6_only(struct sock *sk, struct sockaddr_unspec *addr,
int addr_len);
int ip6_datagram_dst_update(struct sock *sk, bool fix_sk_saddr);
void ip6_datagram_release_cb(struct sock *sk);
@@ -1209,7 +1209,7 @@ void inet6_cleanup_sock(struct sock *sk);
void inet6_sock_destruct(struct sock *sk);
int inet6_release(struct socket *sock);
int inet6_bind(struct socket *sock, struct sockaddr_unspec *uaddr, int addr_len);
-int inet6_bind_sk(struct sock *sk, struct sockaddr *uaddr, int addr_len);
+int inet6_bind_sk(struct sock *sk, struct sockaddr_unspec *uaddr, int addr_len);
int inet6_getname(struct socket *sock, struct sockaddr *uaddr,
int peer);
int inet6_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
diff --git a/include/net/ipv6_stubs.h b/include/net/ipv6_stubs.h
index 8a3465c8c2c5..035dba255f65 100644
--- a/include/net/ipv6_stubs.h
+++ b/include/net/ipv6_stubs.h
@@ -80,7 +80,7 @@ extern const struct ipv6_stub *ipv6_stub __read_mostly;
/* A stub used by bpf helpers. Similarly ugly as ipv6_stub */
struct ipv6_bpf_stub {
- int (*inet6_bind)(struct sock *sk, struct sockaddr *uaddr, int addr_len,
+ int (*inet6_bind)(struct sock *sk, struct sockaddr_unspec *uaddr, int addr_len,
u32 flags);
struct sock *(*udp6_lib_lookup)(const struct net *net,
const struct in6_addr *saddr, __be16 sport,
diff --git a/include/net/ping.h b/include/net/ping.h
index bc7779262e60..42490136e2f5 100644
--- a/include/net/ping.h
+++ b/include/net/ping.h
@@ -59,7 +59,7 @@ void ping_unhash(struct sock *sk);
int ping_init_sock(struct sock *sk);
void ping_close(struct sock *sk, long timeout);
-int ping_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len);
+int ping_bind(struct sock *sk, struct sockaddr_unspec *uaddr, int addr_len);
void ping_err(struct sk_buff *skb, int offset, u32 info);
int ping_getfrag(void *from, char *to, int offset, int fraglen, int odd,
struct sk_buff *);
diff --git a/include/net/sock.h b/include/net/sock.h
index d62f995a1f61..922e7d11d8d1 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1250,10 +1250,10 @@ struct proto {
void (*close)(struct sock *sk,
long timeout);
int (*pre_connect)(struct sock *sk,
- struct sockaddr *uaddr,
+ struct sockaddr_unspec *uaddr,
int addr_len);
int (*connect)(struct sock *sk,
- struct sockaddr *uaddr,
+ struct sockaddr_unspec *uaddr,
int addr_len);
int (*disconnect)(struct sock *sk, int flags);
@@ -1282,9 +1282,9 @@ struct proto {
size_t len, int flags, int *addr_len);
void (*splice_eof)(struct socket *sock);
int (*bind)(struct sock *sk,
- struct sockaddr *addr, int addr_len);
+ struct sockaddr_unspec *addr, int addr_len);
int (*bind_add)(struct sock *sk,
- struct sockaddr *addr, int addr_len);
+ struct sockaddr_unspec *addr, int addr_len);
int (*backlog_rcv) (struct sock *sk,
struct sk_buff *skb);
@@ -3008,7 +3008,7 @@ void sock_set_reuseaddr(struct sock *sk);
void sock_set_reuseport(struct sock *sk);
void sock_set_sndtimeo(struct sock *sk, s64 secs);
-int sock_bind_add(struct sock *sk, struct sockaddr *addr, int addr_len);
+int sock_bind_add(struct sock *sk, struct sockaddr_unspec *addr, int addr_len);
int sock_get_timeout(long timeo, void *optval, bool old_timeval);
int sock_copy_user_timeval(struct __kernel_sock_timeval *tv,
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 526a26e7a150..76a9189804c8 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -505,7 +505,7 @@ struct sock *tcp_v4_syn_recv_sock(const struct sock *sk, struct sk_buff *skb,
struct request_sock *req_unhash,
bool *own_req);
int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb);
-int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len);
+int tcp_v4_connect(struct sock *sk, struct sockaddr_unspec *uaddr, int addr_len);
int tcp_connect(struct sock *sk);
enum tcp_synack_type {
TCP_SYNACK_NORMAL,
diff --git a/include/net/udp.h b/include/net/udp.h
index f8ae2c4ade14..6ec702381b63 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -410,7 +410,7 @@ void udp4_hwcsum(struct sk_buff *skb, __be32 src, __be32 dst);
int udp_rcv(struct sk_buff *skb);
int udp_ioctl(struct sock *sk, int cmd, int *karg);
int udp_init_sock(struct sock *sk);
-int udp_pre_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len);
+int udp_pre_connect(struct sock *sk, struct sockaddr_unspec *uaddr, int addr_len);
int __udp_disconnect(struct sock *sk, int flags);
int udp_disconnect(struct sock *sk, int flags);
__poll_t udp_poll(struct file *file, struct socket *sock, poll_table *wait);
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index ef749b8b7e6b..529049b6626e 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -1126,7 +1126,7 @@ static void writequeue_entry_complete(struct writequeue_entry *e, int completed)
static int sctp_bind_addrs(struct socket *sock, __be16 port)
{
struct sockaddr_storage localaddr;
- struct sockaddr *addr = (struct sockaddr *)&localaddr;
+ struct sockaddr_unspec *addr = (struct sockaddr_unspec *)&localaddr;
int i, addr_len, result = 0;
for (i = 0; i < dlm_local_count; i++) {
@@ -1134,7 +1134,7 @@ static int sctp_bind_addrs(struct socket *sock, __be16 port)
make_sockaddr(&localaddr, port, &addr_len);
if (!i)
- result = kernel_bind(sock, (struct sockaddr_unspec *)addr, addr_len);
+ result = kernel_bind(sock, addr, addr_len);
else
result = sock_bind_add(sock->sk, addr, addr_len);
diff --git a/net/core/filter.c b/net/core/filter.c
index 2eb8947d8097..cf899275b997 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -5897,7 +5897,7 @@ BPF_CALL_3(bpf_bind, struct bpf_sock_addr_kern *, ctx, struct sockaddr *, addr,
return err;
if (((struct sockaddr_in *)addr)->sin_port == htons(0))
flags |= BIND_FORCE_ADDRESS_NO_PORT;
- return __inet_bind(sk, addr, addr_len, flags);
+ return __inet_bind(sk, (struct sockaddr_unspec *)addr, addr_len, flags);
#if IS_ENABLED(CONFIG_IPV6)
} else if (addr->sa_family == AF_INET6) {
if (addr_len < SIN6_LEN_RFC2133)
@@ -5907,7 +5907,7 @@ BPF_CALL_3(bpf_bind, struct bpf_sock_addr_kern *, ctx, struct sockaddr *, addr,
/* ipv6_bpf_stub cannot be NULL, since it's called from
* bpf_cgroup_inet6_connect hook and ipv6 is already loaded
*/
- return ipv6_bpf_stub->inet6_bind(sk, addr, addr_len, flags);
+ return ipv6_bpf_stub->inet6_bind(sk, (struct sockaddr_unspec *)addr, addr_len, flags);
#endif /* CONFIG_IPV6 */
}
#endif /* CONFIG_INET */
diff --git a/net/core/sock.c b/net/core/sock.c
index 0f47ac2b242d..205fb6029bc3 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -4366,7 +4366,7 @@ bool sk_busy_loop_end(void *p, unsigned long start_time)
EXPORT_SYMBOL(sk_busy_loop_end);
#endif /* CONFIG_NET_RX_BUSY_POLL */
-int sock_bind_add(struct sock *sk, struct sockaddr *addr, int addr_len)
+int sock_bind_add(struct sock *sk, struct sockaddr_unspec *addr, int addr_len)
{
if (!sk->sk_prot->bind_add)
return -EOPNOTSUPP;
diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c
index 4c7283453fba..98e9e271363a 100644
--- a/net/ieee802154/socket.c
+++ b/net/ieee802154/socket.c
@@ -102,7 +102,7 @@ static int ieee802154_sock_bind(struct socket *sock, struct sockaddr_unspec *uad
struct sock *sk = sock->sk;
if (sk->sk_prot->bind)
- return sk->sk_prot->bind(sk, (struct sockaddr *)uaddr, addr_len);
+ return sk->sk_prot->bind(sk, uaddr, addr_len);
return sock_no_bind(sock, uaddr, addr_len);
}
@@ -118,7 +118,7 @@ static int ieee802154_sock_connect(struct socket *sock, struct sockaddr_unspec *
if (uaddr->sa_family == AF_UNSPEC)
return sk->sk_prot->disconnect(sk, flags);
- return sk->sk_prot->connect(sk, (struct sockaddr *)uaddr, addr_len);
+ return sk->sk_prot->connect(sk, uaddr, addr_len);
}
static int ieee802154_dev_ioctl(struct sock *sk, struct ifreq __user *arg,
@@ -193,7 +193,7 @@ static void raw_close(struct sock *sk, long timeout)
sk_common_release(sk);
}
-static int raw_bind(struct sock *sk, struct sockaddr *_uaddr, int len)
+static int raw_bind(struct sock *sk, struct sockaddr_unspec *_uaddr, int len)
{
struct ieee802154_addr addr;
struct sockaddr_ieee802154 *uaddr = (struct sockaddr_ieee802154 *)_uaddr;
@@ -227,7 +227,7 @@ static int raw_bind(struct sock *sk, struct sockaddr *_uaddr, int len)
return err;
}
-static int raw_connect(struct sock *sk, struct sockaddr *uaddr,
+static int raw_connect(struct sock *sk, struct sockaddr_unspec *uaddr,
int addr_len)
{
return -ENOTSUPP;
@@ -485,7 +485,7 @@ static void dgram_close(struct sock *sk, long timeout)
sk_common_release(sk);
}
-static int dgram_bind(struct sock *sk, struct sockaddr *uaddr, int len)
+static int dgram_bind(struct sock *sk, struct sockaddr_unspec *uaddr, int len)
{
struct sockaddr_ieee802154 *addr = (struct sockaddr_ieee802154 *)uaddr;
struct ieee802154_addr haddr;
@@ -563,7 +563,7 @@ static int dgram_ioctl(struct sock *sk, int cmd, int *karg)
}
/* FIXME: autobind */
-static int dgram_connect(struct sock *sk, struct sockaddr *uaddr,
+static int dgram_connect(struct sock *sk, struct sockaddr_unspec *uaddr,
int len)
{
struct sockaddr_ieee802154 *addr = (struct sockaddr_ieee802154 *)uaddr;
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 0cee0020affc..2466598e20a1 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -439,7 +439,7 @@ int inet_release(struct socket *sock)
}
EXPORT_SYMBOL(inet_release);
-int inet_bind_sk(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+int inet_bind_sk(struct sock *sk, struct sockaddr_unspec *uaddr, int addr_len)
{
u32 flags = BIND_WITH_LOCK;
int err;
@@ -464,11 +464,11 @@ int inet_bind_sk(struct sock *sk, struct sockaddr *uaddr, int addr_len)
int inet_bind(struct socket *sock, struct sockaddr_unspec *uaddr, int addr_len)
{
- return inet_bind_sk(sock->sk, (struct sockaddr *)uaddr, addr_len);
+ return inet_bind_sk(sock->sk, uaddr, addr_len);
}
EXPORT_SYMBOL(inet_bind);
-int __inet_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len,
+int __inet_bind(struct sock *sk, struct sockaddr_unspec *uaddr, int addr_len,
u32 flags)
{
struct sockaddr_in *addr = (struct sockaddr_in *)uaddr;
@@ -582,14 +582,14 @@ int inet_dgram_connect(struct socket *sock, struct sockaddr_unspec *uaddr,
return prot->disconnect(sk, flags);
if (BPF_CGROUP_PRE_CONNECT_ENABLED(sk)) {
- err = prot->pre_connect(sk, (struct sockaddr *)uaddr, addr_len);
+ err = prot->pre_connect(sk, uaddr, addr_len);
if (err)
return err;
}
if (data_race(!inet_sk(sk)->inet_num) && inet_autobind(sk))
return -EAGAIN;
- return prot->connect(sk, (struct sockaddr *)uaddr, addr_len);
+ return prot->connect(sk, uaddr, addr_len);
}
EXPORT_SYMBOL(inet_dgram_connect);
@@ -669,12 +669,12 @@ int __inet_stream_connect(struct socket *sock, struct sockaddr_unspec *uaddr,
goto out;
if (BPF_CGROUP_PRE_CONNECT_ENABLED(sk)) {
- err = sk->sk_prot->pre_connect(sk, (struct sockaddr *)uaddr, addr_len);
+ err = sk->sk_prot->pre_connect(sk, uaddr, addr_len);
if (err)
goto out;
}
- err = sk->sk_prot->connect(sk, (struct sockaddr *)uaddr, addr_len);
+ err = sk->sk_prot->connect(sk, uaddr, addr_len);
if (err < 0)
goto out;
diff --git a/net/ipv4/datagram.c b/net/ipv4/datagram.c
index c2b2cda1a7e5..a7650047c691 100644
--- a/net/ipv4/datagram.c
+++ b/net/ipv4/datagram.c
@@ -16,7 +16,7 @@
#include <net/tcp_states.h>
#include <net/sock_reuseport.h>
-int __ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+int __ip4_datagram_connect(struct sock *sk, struct sockaddr_unspec *uaddr, int addr_len)
{
struct inet_sock *inet = inet_sk(sk);
struct sockaddr_in *usin = (struct sockaddr_in *) uaddr;
@@ -84,7 +84,7 @@ int __ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len
}
EXPORT_SYMBOL(__ip4_datagram_connect);
-int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+int ip4_datagram_connect(struct sock *sk, struct sockaddr_unspec *uaddr, int addr_len)
{
int res;
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 031df4c19fcc..77fddbc32736 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -291,7 +291,7 @@ void ping_close(struct sock *sk, long timeout)
}
EXPORT_SYMBOL_GPL(ping_close);
-static int ping_pre_connect(struct sock *sk, struct sockaddr *uaddr,
+static int ping_pre_connect(struct sock *sk, struct sockaddr_unspec *uaddr,
int addr_len)
{
/* This check is replicated from __ip4_datagram_connect() and
@@ -306,7 +306,7 @@ static int ping_pre_connect(struct sock *sk, struct sockaddr *uaddr,
/* Checks the bind address and possibly modifies sk->sk_bound_dev_if. */
static int ping_check_bind_addr(struct sock *sk, struct inet_sock *isk,
- struct sockaddr *uaddr, int addr_len)
+ struct sockaddr_unspec *uaddr, int addr_len)
{
struct net *net = sock_net(sk);
if (sk->sk_family == AF_INET) {
@@ -392,7 +392,7 @@ static int ping_check_bind_addr(struct sock *sk, struct inet_sock *isk,
return 0;
}
-static void ping_set_saddr(struct sock *sk, struct sockaddr *saddr)
+static void ping_set_saddr(struct sock *sk, struct sockaddr_unspec *saddr)
{
if (saddr->sa_family == AF_INET) {
struct inet_sock *isk = inet_sk(sk);
@@ -412,7 +412,7 @@ static void ping_set_saddr(struct sock *sk, struct sockaddr *saddr)
* Moreover, we don't allow binding to multi- and broadcast addresses.
*/
-int ping_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+int ping_bind(struct sock *sk, struct sockaddr_unspec *uaddr, int addr_len)
{
struct inet_sock *isk = inet_sk(sk);
unsigned short snum;
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 1d2c89d63cc7..3762dc4de2de 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -697,7 +697,8 @@ static void raw_destroy(struct sock *sk)
}
/* This gets rid of all the nasties in af_inet. -DaveM */
-static int raw_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+static int raw_bind(struct sock *sk, struct sockaddr_unspec *uaddr,
+ int addr_len)
{
struct inet_sock *inet = inet_sk(sk);
struct sockaddr_in *addr = (struct sockaddr_in *) uaddr;
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 84d3d556ed80..778dec9d5050 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -203,7 +203,7 @@ int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp)
}
EXPORT_IPV6_MOD_GPL(tcp_twsk_unique);
-static int tcp_v4_pre_connect(struct sock *sk, struct sockaddr *uaddr,
+static int tcp_v4_pre_connect(struct sock *sk, struct sockaddr_unspec *uaddr,
int addr_len)
{
/* This check is replicated from tcp_v4_connect() and intended to
@@ -219,7 +219,7 @@ static int tcp_v4_pre_connect(struct sock *sk, struct sockaddr *uaddr,
}
/* This will initiate an outgoing connection. */
-int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+int tcp_v4_connect(struct sock *sk, struct sockaddr_unspec *uaddr, int addr_len)
{
struct sockaddr_in *usin = (struct sockaddr_in *)uaddr;
struct inet_timewait_death_row *tcp_death_row;
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index cc3ce0f762ec..d6e6fe6ae708 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -2132,7 +2132,8 @@ int udp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int flags,
goto try_again;
}
-int udp_pre_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+int udp_pre_connect(struct sock *sk, struct sockaddr_unspec *uaddr,
+ int addr_len)
{
/* This check is replicated from __ip4_datagram_connect() and
* intended to prevent BPF program called below from accessing bytes
@@ -2145,7 +2146,8 @@ int udp_pre_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
}
EXPORT_IPV6_MOD(udp_pre_connect);
-static int udp_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+static int udp_connect(struct sock *sk, struct sockaddr_unspec *uaddr,
+ int addr_len)
{
int res;
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 3d33fe15e153..c39de5d286f5 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -277,7 +277,7 @@ static int inet6_create(struct net *net, struct socket *sock, int protocol,
goto out;
}
-static int __inet6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len,
+static int __inet6_bind(struct sock *sk, struct sockaddr_unspec *uaddr, int addr_len,
u32 flags)
{
struct sockaddr_in6 *addr = (struct sockaddr_in6 *)uaddr;
@@ -438,7 +438,7 @@ static int __inet6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len,
goto out;
}
-int inet6_bind_sk(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+int inet6_bind_sk(struct sock *sk, struct sockaddr_unspec *uaddr, int addr_len)
{
u32 flags = BIND_WITH_LOCK;
const struct proto *prot;
@@ -467,7 +467,7 @@ int inet6_bind_sk(struct sock *sk, struct sockaddr *uaddr, int addr_len)
/* bind for INET6 API */
int inet6_bind(struct socket *sock, struct sockaddr_unspec *uaddr, int addr_len)
{
- return inet6_bind_sk(sock->sk, (struct sockaddr *)uaddr, addr_len);
+ return inet6_bind_sk(sock->sk, uaddr, addr_len);
}
EXPORT_SYMBOL(inet6_bind);
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 972bf0426d59..26e34af08dad 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -138,7 +138,7 @@ void ip6_datagram_release_cb(struct sock *sk)
}
EXPORT_SYMBOL_GPL(ip6_datagram_release_cb);
-int __ip6_datagram_connect(struct sock *sk, struct sockaddr *uaddr,
+int __ip6_datagram_connect(struct sock *sk, struct sockaddr_unspec *uaddr,
int addr_len)
{
struct sockaddr_in6 *usin = (struct sockaddr_in6 *) uaddr;
@@ -194,7 +194,7 @@ int __ip6_datagram_connect(struct sock *sk, struct sockaddr *uaddr,
sin.sin_port = usin->sin6_port;
err = __ip4_datagram_connect(sk,
- (struct sockaddr *) &sin,
+ (struct sockaddr_unspec *) &sin,
sizeof(sin));
ipv4_connected:
@@ -271,7 +271,7 @@ int __ip6_datagram_connect(struct sock *sk, struct sockaddr *uaddr,
}
EXPORT_SYMBOL_GPL(__ip6_datagram_connect);
-int ip6_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+int ip6_datagram_connect(struct sock *sk, struct sockaddr_unspec *uaddr, int addr_len)
{
int res;
@@ -282,7 +282,7 @@ int ip6_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
}
EXPORT_SYMBOL_GPL(ip6_datagram_connect);
-int ip6_datagram_connect_v6_only(struct sock *sk, struct sockaddr *uaddr,
+int ip6_datagram_connect_v6_only(struct sock *sk, struct sockaddr_unspec *uaddr,
int addr_len)
{
DECLARE_SOCKADDR(struct sockaddr_in6 *, sin6, uaddr);
diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
index 82b0492923d4..bd87ea19e918 100644
--- a/net/ipv6/ping.c
+++ b/net/ipv6/ping.c
@@ -45,7 +45,7 @@ static int dummy_ipv6_chk_addr(struct net *net, const struct in6_addr *addr,
return 0;
}
-static int ping_v6_pre_connect(struct sock *sk, struct sockaddr *uaddr,
+static int ping_v6_pre_connect(struct sock *sk, struct sockaddr_unspec *uaddr,
int addr_len)
{
/* This check is replicated from __ip6_datagram_connect() and
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 4c3f8245c40f..86839b4b62b2 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -214,7 +214,8 @@ bool raw6_local_deliver(struct sk_buff *skb, int nexthdr)
}
/* This cleans up af_inet6 a bit. -DaveM */
-static int rawv6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+static int rawv6_bind(struct sock *sk, struct sockaddr_unspec *uaddr,
+ int addr_len)
{
struct inet_sock *inet = inet_sk(sk);
struct ipv6_pinfo *np = inet6_sk(sk);
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 7577e7eb2c97..ac85c6e6e5e1 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -118,7 +118,7 @@ static u32 tcp_v6_init_ts_off(const struct net *net, const struct sk_buff *skb)
ipv6_hdr(skb)->saddr.s6_addr32);
}
-static int tcp_v6_pre_connect(struct sock *sk, struct sockaddr *uaddr,
+static int tcp_v6_pre_connect(struct sock *sk, struct sockaddr_unspec *uaddr,
int addr_len)
{
/* This check is replicated from tcp_v6_connect() and intended to
@@ -133,7 +133,7 @@ static int tcp_v6_pre_connect(struct sock *sk, struct sockaddr *uaddr,
return BPF_CGROUP_RUN_PROG_INET6_CONNECT(sk, uaddr, &addr_len);
}
-static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
+static int tcp_v6_connect(struct sock *sk, struct sockaddr_unspec *uaddr,
int addr_len)
{
struct sockaddr_in6 *usin = (struct sockaddr_in6 *) uaddr;
@@ -238,7 +238,7 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
tp->af_specific = &tcp_sock_ipv6_mapped_specific;
#endif
- err = tcp_v4_connect(sk, (struct sockaddr *)&sin, sizeof(sin));
+ err = tcp_v4_connect(sk, (struct sockaddr_unspec *)&sin, sizeof(sin));
if (err) {
icsk->icsk_ext_hdr_len = exthdrlen;
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 6a68f77da44b..7e1d36d13c1e 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1281,7 +1281,7 @@ static void udp_v6_flush_pending_frames(struct sock *sk)
}
}
-static int udpv6_pre_connect(struct sock *sk, struct sockaddr *uaddr,
+static int udpv6_pre_connect(struct sock *sk, struct sockaddr_unspec *uaddr,
int addr_len)
{
if (addr_len < offsetofend(struct sockaddr, sa_family))
@@ -1302,7 +1302,8 @@ static int udpv6_pre_connect(struct sock *sk, struct sockaddr *uaddr,
return BPF_CGROUP_RUN_PROG_INET6_CONNECT_LOCK(sk, uaddr, &addr_len);
}
-static int udpv6_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+static int udpv6_connect(struct sock *sk, struct sockaddr_unspec *uaddr,
+ int addr_len)
{
int res;
diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
index 29795d2839e8..df1418964e3a 100644
--- a/net/l2tp/l2tp_ip.c
+++ b/net/l2tp/l2tp_ip.c
@@ -267,7 +267,8 @@ static void l2tp_ip_destroy_sock(struct sock *sk)
}
}
-static int l2tp_ip_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+static int l2tp_ip_bind(struct sock *sk, struct sockaddr_unspec *uaddr,
+ int addr_len)
{
struct inet_sock *inet = inet_sk(sk);
struct sockaddr_l2tpip *addr = (struct sockaddr_l2tpip *)uaddr;
@@ -328,7 +329,8 @@ static int l2tp_ip_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
return ret;
}
-static int l2tp_ip_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+static int l2tp_ip_connect(struct sock *sk, struct sockaddr_unspec *uaddr,
+ int addr_len)
{
struct sockaddr_l2tpip *lsa = (struct sockaddr_l2tpip *)uaddr;
struct l2tp_ip_net *pn = l2tp_ip_pernet(sock_net(sk));
diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c
index ea232f338dcb..80063eae56e1 100644
--- a/net/l2tp/l2tp_ip6.c
+++ b/net/l2tp/l2tp_ip6.c
@@ -280,7 +280,8 @@ static void l2tp_ip6_destroy_sock(struct sock *sk)
}
}
-static int l2tp_ip6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+static int l2tp_ip6_bind(struct sock *sk, struct sockaddr_unspec *uaddr,
+ int addr_len)
{
struct inet_sock *inet = inet_sk(sk);
struct ipv6_pinfo *np = inet6_sk(sk);
@@ -383,7 +384,7 @@ static int l2tp_ip6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
return err;
}
-static int l2tp_ip6_connect(struct sock *sk, struct sockaddr *uaddr,
+static int l2tp_ip6_connect(struct sock *sk, struct sockaddr_unspec *uaddr,
int addr_len)
{
struct sockaddr_l2tpip6 *lsa = (struct sockaddr_l2tpip6 *)uaddr;
diff --git a/net/mptcp/pm_kernel.c b/net/mptcp/pm_kernel.c
index d39e7c178460..e71bc696c5ae 100644
--- a/net/mptcp/pm_kernel.c
+++ b/net/mptcp/pm_kernel.c
@@ -670,10 +670,10 @@ static int mptcp_pm_nl_create_listen_socket(struct sock *sk,
addrlen = sizeof(struct sockaddr_in6);
#endif
if (ssk->sk_family == AF_INET)
- err = inet_bind_sk(ssk, (struct sockaddr *)&addr, addrlen);
+ err = inet_bind_sk(ssk, (struct sockaddr_unspec *)&addr, addrlen);
#if IS_ENABLED(CONFIG_MPTCP_IPV6)
else if (ssk->sk_family == AF_INET6)
- err = inet6_bind_sk(ssk, (struct sockaddr *)&addr, addrlen);
+ err = inet6_bind_sk(ssk, (struct sockaddr_unspec *)&addr, addrlen);
#endif
if (err)
return err;
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index 8426a61f7cab..eee4d5298f6c 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -3671,7 +3671,8 @@ static int mptcp_ioctl(struct sock *sk, int cmd, int *karg)
return 0;
}
-static int mptcp_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+static int mptcp_connect(struct sock *sk, struct sockaddr_unspec *uaddr,
+ int addr_len)
{
struct mptcp_subflow_context *subflow;
struct mptcp_sock *msk = mptcp_sk(sk);
@@ -3796,10 +3797,10 @@ static int mptcp_bind(struct socket *sock, struct sockaddr_unspec *uaddr, int ad
}
if (sk->sk_family == AF_INET)
- err = inet_bind_sk(ssk, (struct sockaddr *)uaddr, addr_len);
+ err = inet_bind_sk(ssk, uaddr, addr_len);
#if IS_ENABLED(CONFIG_MPTCP_IPV6)
else if (sk->sk_family == AF_INET6)
- err = inet6_bind_sk(ssk, (struct sockaddr *)uaddr, addr_len);
+ err = inet6_bind_sk(ssk, uaddr, addr_len);
#endif
if (!err)
mptcp_copy_inaddrs(sk, ssk);
diff --git a/net/phonet/pep.c b/net/phonet/pep.c
index 62527e1ebb88..53dd154637f6 100644
--- a/net/phonet/pep.c
+++ b/net/phonet/pep.c
@@ -882,7 +882,8 @@ static struct sock *pep_sock_accept(struct sock *sk,
return newsk;
}
-static int pep_sock_connect(struct sock *sk, struct sockaddr *addr, int len)
+static int pep_sock_connect(struct sock *sk, struct sockaddr_unspec *addr,
+ int len)
{
struct pep_sock *pn = pep_sk(sk);
int err;
diff --git a/net/phonet/socket.c b/net/phonet/socket.c
index a410f4001869..a3dd8181573f 100644
--- a/net/phonet/socket.c
+++ b/net/phonet/socket.c
@@ -163,7 +163,7 @@ static int pn_socket_bind(struct socket *sock, struct sockaddr_unspec *addr, int
u8 saddr;
if (sk->sk_prot->bind)
- return sk->sk_prot->bind(sk, (struct sockaddr *)addr, len);
+ return sk->sk_prot->bind(sk, addr, len);
if (len < sizeof(struct sockaddr_pn))
return -EINVAL;
@@ -252,7 +252,7 @@ static int pn_socket_connect(struct socket *sock, struct sockaddr_unspec *addr,
pn->resource = pn_sockaddr_get_resource(spn);
sock->state = SS_CONNECTING;
- err = sk->sk_prot->connect(sk, (struct sockaddr *)addr, len);
+ err = sk->sk_prot->connect(sk, addr, len);
if (err) {
sock->state = SS_UNCONNECTED;
pn->dobject = 0;
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index af736c5aa902..26fe515768b0 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -307,7 +307,8 @@ static struct sctp_transport *sctp_addr_id2transport(struct sock *sk,
* sockaddr_in6 [RFC 2553]),
* addr_len - the size of the address structure.
*/
-static int sctp_bind(struct sock *sk, struct sockaddr *addr, int addr_len)
+static int sctp_bind(struct sock *sk, struct sockaddr_unspec *addr,
+ int addr_len)
{
int retval = 0;
@@ -1054,13 +1055,13 @@ static int sctp_setsockopt_bindx(struct sock *sk, struct sockaddr *addrs,
}
}
-static int sctp_bind_add(struct sock *sk, struct sockaddr *addrs,
- int addrlen)
+static int sctp_bind_add(struct sock *sk, struct sockaddr_unspec *addrs,
+ int addrlen)
{
int err;
lock_sock(sk);
- err = sctp_setsockopt_bindx(sk, addrs, addrlen, SCTP_BINDX_ADD_ADDR);
+ err = sctp_setsockopt_bindx(sk, (struct sockaddr *)addrs, addrlen, SCTP_BINDX_ADD_ADDR);
release_sock(sk);
return err;
}
--
2.34.1
prev parent reply other threads:[~2025-07-23 23:19 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-23 23:19 [PATCH 0/6 net-next] net: Introduce struct sockaddr_unspec Kees Cook
2025-07-23 23:19 ` [PATCH 1/6 net-next] net: uapi: Add __kernel_sockaddr_unspec for sockaddr of unknown length Kees Cook
2025-07-24 21:40 ` Jakub Kicinski
2025-07-24 22:28 ` Kees Cook
2025-07-23 23:19 ` [PATCH 2/6 net-next] net/l2tp: Add missing sa_family validation in pppol2tp_sockaddr_get_info Kees Cook
2025-07-23 23:19 ` [PATCH 3/6 net-next] net: Convert proto_ops bind() callbacks to use sockaddr_unspec Kees Cook
2025-07-24 11:29 ` kernel test robot
2025-07-24 13:31 ` Kees Cook
2025-07-24 13:02 ` kernel test robot
2025-07-23 23:19 ` [PATCH 4/6 net-next] net: Convert proto_ops connect() " Kees Cook
2025-07-24 12:00 ` kernel test robot
2025-07-23 23:19 ` [PATCH 5/6 net-next] net: Remove struct sockaddr from net.h Kees Cook
2025-07-23 23:19 ` Kees Cook [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20250723231921.2293685-6-kees@kernel.org \
--to=kees@kernel.org \
--cc=davem@davemloft.net \
--cc=edumazet@google.com \
--cc=horms@kernel.org \
--cc=kuba@kernel.org \
--cc=kuniyu@google.com \
--cc=netdev@vger.kernel.org \
--cc=pabeni@redhat.com \
--cc=willemb@google.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.