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yaml
---
r: 297712
b: refs/heads/master
c: ee4fa23
h: refs/heads/master
v: v3
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H. J. Lu authored and H. Peter Anvin committed Feb 20, 2012
1 parent bf321e2 commit d9db16d
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Showing 2 changed files with 41 additions and 26 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: da88cea1200b9df65a7811a3920aa5a4be7dab9f
refs/heads/master: ee4fa23c4bfcc635d077a9633d405610de45bc70
65 changes: 40 additions & 25 deletions trunk/net/compat.c
Original file line number Diff line number Diff line change
Expand Up @@ -219,8 +219,6 @@ int cmsghdr_from_user_compat_to_kern(struct msghdr *kmsg, struct sock *sk,

int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data)
{
struct compat_timeval ctv;
struct compat_timespec cts[3];
struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
struct compat_cmsghdr cmhdr;
int cmlen;
Expand All @@ -230,24 +228,28 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat
return 0; /* XXX: return error? check spec. */
}

if (level == SOL_SOCKET && type == SCM_TIMESTAMP) {
struct timeval *tv = (struct timeval *)data;
ctv.tv_sec = tv->tv_sec;
ctv.tv_usec = tv->tv_usec;
data = &ctv;
len = sizeof(ctv);
}
if (level == SOL_SOCKET &&
(type == SCM_TIMESTAMPNS || type == SCM_TIMESTAMPING)) {
int count = type == SCM_TIMESTAMPNS ? 1 : 3;
int i;
struct timespec *ts = (struct timespec *)data;
for (i = 0; i < count; i++) {
cts[i].tv_sec = ts[i].tv_sec;
cts[i].tv_nsec = ts[i].tv_nsec;
if (!COMPAT_USE_64BIT_TIME) {
struct compat_timeval ctv;
struct compat_timespec cts[3];
if (level == SOL_SOCKET && type == SCM_TIMESTAMP) {
struct timeval *tv = (struct timeval *)data;
ctv.tv_sec = tv->tv_sec;
ctv.tv_usec = tv->tv_usec;
data = &ctv;
len = sizeof(ctv);
}
if (level == SOL_SOCKET &&
(type == SCM_TIMESTAMPNS || type == SCM_TIMESTAMPING)) {
int count = type == SCM_TIMESTAMPNS ? 1 : 3;
int i;
struct timespec *ts = (struct timespec *)data;
for (i = 0; i < count; i++) {
cts[i].tv_sec = ts[i].tv_sec;
cts[i].tv_nsec = ts[i].tv_nsec;
}
data = &cts;
len = sizeof(cts[0]) * count;
}
data = &cts;
len = sizeof(cts[0]) * count;
}

cmlen = CMSG_COMPAT_LEN(len);
Expand Down Expand Up @@ -454,11 +456,15 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,

int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
(struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct compat_timeval __user *ctv;
int err;
struct timeval tv;

if (COMPAT_USE_64BIT_TIME)
return sock_get_timestamp(sk, userstamp);

ctv = (struct compat_timeval __user *) userstamp;
err = -ENOENT;
if (!sock_flag(sk, SOCK_TIMESTAMP))
sock_enable_timestamp(sk, SOCK_TIMESTAMP);
tv = ktime_to_timeval(sk->sk_stamp);
Expand All @@ -478,11 +484,15 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);

int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
(struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct compat_timespec __user *ctv;
int err;
struct timespec ts;

if (COMPAT_USE_64BIT_TIME)
return sock_get_timestampns (sk, userstamp);

ctv = (struct compat_timespec __user *) userstamp;
err = -ENOENT;
if (!sock_flag(sk, SOCK_TIMESTAMP))
sock_enable_timestamp(sk, SOCK_TIMESTAMP);
ts = ktime_to_timespec(sk->sk_stamp);
Expand Down Expand Up @@ -767,6 +777,11 @@ asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg,
int datagrams;
struct timespec ktspec;

if (COMPAT_USE_64BIT_TIME)
return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
flags | MSG_CMSG_COMPAT,
(struct timespec *) timeout);

if (timeout == NULL)
return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
flags | MSG_CMSG_COMPAT, NULL);
Expand Down

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