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authorAndy Lutomirski <luto@amacapital.net>2013-06-05 19:38:26 +0000
committerDavid S. Miller <davem@davemloft.net>2013-06-06 11:52:14 -0700
commita7526eb5d06b0084ef12d7b168d008fcf516caab (patch)
treec79242698fadf78c23bbb9f50a7a8b9a74a40284 /include
parent4d3797d7e1861ac1af150a6189315786c5e1c820 (diff)
net: Unbreak compat_sys_{send,recv}msg
I broke them in this commit: commit 1be374a0518a288147c6a7398792583200a67261 Author: Andy Lutomirski <luto@amacapital.net> Date: Wed May 22 14:07:44 2013 -0700 net: Block MSG_CMSG_COMPAT in send(m)msg and recv(m)msg This patch adds __sys_sendmsg and __sys_sendmsg as common helpers that accept MSG_CMSG_COMPAT and blocks MSG_CMSG_COMPAT at the syscall entrypoints. It also reverts some unnecessary checks in sys_socketcall. Apparently I was suffering from underscore blindness the first time around. Signed-off-by: Andy Lutomirski <luto@amacapital.net> Tested-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/socket.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/socket.h b/include/linux/socket.h
index 33bf2dfab19..b10ce4b341e 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -320,6 +320,9 @@ extern int put_cmsg(struct msghdr*, int level, int type, int len, void *data);
struct timespec;
+/* The __sys_...msg variants allow MSG_CMSG_COMPAT */
+extern long __sys_recvmsg(int fd, struct msghdr __user *msg, unsigned flags);
+extern long __sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags);
extern int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen,
unsigned int flags, struct timespec *timeout);
extern int __sys_sendmmsg(int fd, struct mmsghdr __user *mmsg,