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net: Convert proto_ops bind() callbacks to use sockaddr_unsized

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Update all struct proto_ops bind() callback function prototypes from
"struct sockaddr *" to "struct sockaddr_unsized *" to avoid lying to the
compiler about object sizes. Calls into struct proto handlers gain casts
that will be removed in the struct proto conversion patch.

No binary changes expected.

Signed-off-by: Kees Cook <kees@kernel.org>
Link: https://patch.msgid.link/20251104002617.2752303-2-kees@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Kees Cook
2025-11-03 16:26:10 -08:00
committed by Jakub Kicinski
parent bf33247a90
commit 0e50474fa5
74 changed files with 113 additions and 112 deletions
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4
net/sunrpc/clnt.c
View File

@@ -1457,12 +1457,12 @@ static int rpc_sockname(struct net *net, struct sockaddr *sap, size_t salen,
switch (sap->sa_family) {
case AF_INET:
err = kernel_bind(sock,
(struct sockaddr *)&rpc_inaddr_loopback,
(struct sockaddr_unsized *)&rpc_inaddr_loopback,
sizeof(rpc_inaddr_loopback));
break;
case AF_INET6:
err = kernel_bind(sock,
(struct sockaddr *)&rpc_in6addr_loopback,
(struct sockaddr_unsized *)&rpc_in6addr_loopback,
sizeof(rpc_in6addr_loopback));
break;
default:

2
net/sunrpc/svcsock.c
View File

@@ -1557,7 +1557,7 @@ static struct svc_xprt *svc_create_socket(struct svc_serv *serv,
ip6_sock_set_v6only(sock->sk);
if (type == SOCK_STREAM)
sock->sk->sk_reuse = SK_CAN_REUSE; /* allow address reuse */
error = kernel_bind(sock, sin, len);
error = kernel_bind(sock, (struct sockaddr_unsized *)sin, len);
if (error < 0)
goto bummer;

4
net/sunrpc/xprtsock.c
View File

@@ -1845,8 +1845,8 @@ static int xs_bind(struct sock_xprt *transport, struct socket *sock)
memcpy(&myaddr, &transport->srcaddr, transport->xprt.addrlen);
do {
rpc_set_port((struct sockaddr *)&myaddr, port);
err = kernel_bind(sock, (struct sockaddr *)&myaddr,
transport->xprt.addrlen);
err = kernel_bind(sock, (struct sockaddr_unsized *)&myaddr,
transport->xprt.addrlen);
if (err == 0) {
if (transport->xprt.reuseport)
transport->srcport = port;