aboutsummaryrefslogtreecommitdiff
path: root/net/compat.c
diff options
context:
space:
mode:
authorPatrick Ohly <patrick.ohly@intel.com>2009-02-12 05:03:38 +0000
committerDavid S. Miller <davem@davemloft.net>2009-02-15 22:43:35 -0800
commit20d4947353be60e909e6b1a79d241457edd6833f (patch)
tree939ced518fc52e57df9ee9efb0cd14b6e26a3bc4 /net/compat.c
parentac45f602ee3d1b6f326f68bc0c2591ceebf05ba4 (diff)
downloadlinux-20d4947353be60e909e6b1a79d241457edd6833f.tar.gz
net: socket infrastructure for SO_TIMESTAMPING
The overlap with the old SO_TIMESTAMP[NS] options is handled so that time stamping in software (net_enable_timestamp()) is enabled when SO_TIMESTAMP[NS] and/or SO_TIMESTAMPING_RX_SOFTWARE is set. It's disabled if all of these are off. Signed-off-by: Patrick Ohly <patrick.ohly@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/compat.c')
-rw-r--r--net/compat.c19
1 files changed, 12 insertions, 7 deletions
diff --git a/net/compat.c b/net/compat.c
index a3a2ba0fac0..8d739053afe 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -216,7 +216,7 @@ Efault:
int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data)
{
struct compat_timeval ctv;
- struct compat_timespec cts;
+ struct compat_timespec cts[3];
struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
struct compat_cmsghdr cmhdr;
int cmlen;
@@ -233,12 +233,17 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat
data = &ctv;
len = sizeof(ctv);
}
- if (level == SOL_SOCKET && type == SCM_TIMESTAMPNS) {
+ 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;
- cts.tv_sec = ts->tv_sec;
- cts.tv_nsec = ts->tv_nsec;
+ 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);
+ len = sizeof(cts[0]) * count;
}
cmlen = CMSG_COMPAT_LEN(len);
@@ -455,7 +460,7 @@ int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
struct timeval tv;
if (!sock_flag(sk, SOCK_TIMESTAMP))
- sock_enable_timestamp(sk);
+ sock_enable_timestamp(sk, SOCK_TIMESTAMP);
tv = ktime_to_timeval(sk->sk_stamp);
if (tv.tv_sec == -1)
return err;
@@ -479,7 +484,7 @@ int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *usersta
struct timespec ts;
if (!sock_flag(sk, SOCK_TIMESTAMP))
- sock_enable_timestamp(sk);
+ sock_enable_timestamp(sk, SOCK_TIMESTAMP);
ts = ktime_to_timespec(sk->sk_stamp);
if (ts.tv_sec == -1)
return err;