netdev - [RFC PATCH v3 2/3] net: Make `move_addr_to

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20211230173126.174350-3-ammar.faizi@intel.com>
Date:   Fri, 31 Dec 2021 00:52:31 +0700
From:   Ammar Faizi <ammarfaizi2@...il.com>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     io-uring Mailing List <io-uring@...r.kernel.org>,
        Pavel Begunkov <asml.silence@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Ammar Faizi <ammarfaizi2@...il.com>,
        Nugra <richiisei@...il.com>
Subject: [RFC PATCH v3 2/3] net: Make `move_addr_to_user()` be a non static function

In order to add recvfrom support for io_uring, we need to call
`move_addr_to_user()` in fs/io_uring.c.

This makes `move_addr_to_user()` be a non static function so we can
call it from io_uring.

Cc: "David S. Miller" <davem@...emloft.net>
Cc: Jakub Kicinski <kuba@...nel.org>
Cc: netdev@...r.kernel.org
Cc: Nugra <richiisei@...il.com>
Signed-off-by: Ammar Faizi <ammarfaizi2@...il.com>
---

v3:
  * No changes *

v2:
  - Added Nugra to CC list (tester).
---
 include/linux/socket.h | 2 ++
 net/socket.c           | 4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/linux/socket.h b/include/linux/socket.h
index 8ef26d89ef49..0d0bc1ace50c 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -371,6 +371,8 @@ struct ucred {
 #define IPX_TYPE	1
 
 extern int move_addr_to_kernel(void __user *uaddr, int ulen, struct sockaddr_storage *kaddr);
+extern int move_addr_to_user(struct sockaddr_storage *kaddr, int klen,
+			     void __user *uaddr, int __user *ulen);
 extern int put_cmsg(struct msghdr*, int level, int type, int len, void *data);
 
 struct timespec64;
diff --git a/net/socket.c b/net/socket.c
index 7f64a6eccf63..af521d351c8a 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -267,8 +267,8 @@ int move_addr_to_kernel(void __user *uaddr, int ulen, struct sockaddr_storage *k
  *	specified. Zero is returned for a success.
  */
 
-static int move_addr_to_user(struct sockaddr_storage *kaddr, int klen,
-			     void __user *uaddr, int __user *ulen)
+int move_addr_to_user(struct sockaddr_storage *kaddr, int klen,
+		      void __user *uaddr, int __user *ulen)
 {
 	int err;
 	int len;
-- 
2.32.0