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Diffstat (limited to 'net/compat.c')
-rw-r--r--net/compat.c79
1 files changed, 58 insertions, 21 deletions
diff --git a/net/compat.c b/net/compat.c
index 1f32866d09b7..9a0f5f2b90c8 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -34,11 +34,11 @@ static inline int iov_from_user_compat_to_kern(struct iovec *kiov,
{
int tot_len = 0;
- while(niov > 0) {
+ while (niov > 0) {
compat_uptr_t buf;
compat_size_t len;
- if(get_user(len, &uiov32->iov_len) ||
+ if (get_user(len, &uiov32->iov_len) ||
get_user(buf, &uiov32->iov_base)) {
tot_len = -EFAULT;
break;
@@ -78,12 +78,12 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
{
int tot_len;
- if(kern_msg->msg_namelen) {
- if(mode==VERIFY_READ) {
+ if (kern_msg->msg_namelen) {
+ if (mode==VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
- if(err < 0)
+ if (err < 0)
return err;
}
kern_msg->msg_name = kern_address;
@@ -93,7 +93,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
tot_len = iov_from_user_compat_to_kern(kern_iov,
(struct compat_iovec __user *)kern_msg->msg_iov,
kern_msg->msg_iovlen);
- if(tot_len >= 0)
+ if (tot_len >= 0)
kern_msg->msg_iov = kern_iov;
return tot_len;
@@ -146,8 +146,8 @@ int cmsghdr_from_user_compat_to_kern(struct msghdr *kmsg, struct sock *sk,
kcmlen = 0;
kcmsg_base = kcmsg = (struct cmsghdr *)stackbuf;
ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);
- while(ucmsg != NULL) {
- if(get_user(ucmlen, &ucmsg->cmsg_len))
+ while (ucmsg != NULL) {
+ if (get_user(ucmlen, &ucmsg->cmsg_len))
return -EFAULT;
/* Catch bogons. */
@@ -160,7 +160,7 @@ int cmsghdr_from_user_compat_to_kern(struct msghdr *kmsg, struct sock *sk,
kcmlen += tmp;
ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);
}
- if(kcmlen == 0)
+ if (kcmlen == 0)
return -EINVAL;
/* The kcmlen holds the 64-bit version of the control length.
@@ -176,7 +176,7 @@ int cmsghdr_from_user_compat_to_kern(struct msghdr *kmsg, struct sock *sk,
/* Now copy them over neatly. */
memset(kcmsg, 0, kcmlen);
ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);
- while(ucmsg != NULL) {
+ while (ucmsg != NULL) {
if (__get_user(ucmlen, &ucmsg->cmsg_len))
goto Efault;
if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg))
@@ -215,11 +215,12 @@ 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_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
struct compat_cmsghdr cmhdr;
int cmlen;
- if(cm == NULL || kmsg->msg_controllen < sizeof(*cm)) {
+ if (cm == NULL || kmsg->msg_controllen < sizeof(*cm)) {
kmsg->msg_flags |= MSG_CTRUNC;
return 0; /* XXX: return error? check spec. */
}
@@ -229,11 +230,18 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat
ctv.tv_sec = tv->tv_sec;
ctv.tv_usec = tv->tv_usec;
data = &ctv;
- len = sizeof(struct compat_timeval);
+ len = sizeof(ctv);
+ }
+ if (level == SOL_SOCKET && type == SO_TIMESTAMPNS) {
+ struct timespec *ts = (struct timespec *)data;
+ cts.tv_sec = ts->tv_sec;
+ cts.tv_nsec = ts->tv_nsec;
+ data = &cts;
+ len = sizeof(cts);
}
cmlen = CMSG_COMPAT_LEN(len);
- if(kmsg->msg_controllen < cmlen) {
+ if (kmsg->msg_controllen < cmlen) {
kmsg->msg_flags |= MSG_CTRUNC;
cmlen = kmsg->msg_controllen;
}
@@ -241,9 +249,9 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat
cmhdr.cmsg_type = type;
cmhdr.cmsg_len = cmlen;
- if(copy_to_user(cm, &cmhdr, sizeof cmhdr))
+ if (copy_to_user(cm, &cmhdr, sizeof cmhdr))
return -EFAULT;
- if(copy_to_user(CMSG_COMPAT_DATA(cm), data, cmlen - sizeof(struct compat_cmsghdr)))
+ if (copy_to_user(CMSG_COMPAT_DATA(cm), data, cmlen - sizeof(struct compat_cmsghdr)))
return -EFAULT;
cmlen = CMSG_COMPAT_SPACE(len);
kmsg->msg_control += cmlen;
@@ -545,20 +553,49 @@ 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 timeval tv;
if (!sock_flag(sk, SOCK_TIMESTAMP))
sock_enable_timestamp(sk);
- if (sk->sk_stamp.tv_sec == -1)
+ tv = ktime_to_timeval(sk->sk_stamp);
+ if (tv.tv_sec == -1)
return err;
- if (sk->sk_stamp.tv_sec == 0)
- do_gettimeofday(&sk->sk_stamp);
- if (put_user(sk->sk_stamp.tv_sec, &ctv->tv_sec) ||
- put_user(sk->sk_stamp.tv_usec, &ctv->tv_usec))
+ if (tv.tv_sec == 0) {
+ sk->sk_stamp = ktime_get_real();
+ tv = ktime_to_timeval(sk->sk_stamp);
+ }
+ err = 0;
+ if (put_user(tv.tv_sec, &ctv->tv_sec) ||
+ put_user(tv.tv_usec, &ctv->tv_usec))
err = -EFAULT;
return err;
}
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 timespec ts;
+
+ if (!sock_flag(sk, SOCK_TIMESTAMP))
+ sock_enable_timestamp(sk);
+ ts = ktime_to_timespec(sk->sk_stamp);
+ if (ts.tv_sec == -1)
+ return err;
+ if (ts.tv_sec == 0) {
+ sk->sk_stamp = ktime_get_real();
+ ts = ktime_to_timespec(sk->sk_stamp);
+ }
+ err = 0;
+ if (put_user(ts.tv_sec, &ctv->tv_sec) ||
+ put_user(ts.tv_nsec, &ctv->tv_nsec))
+ err = -EFAULT;
+ return err;
+}
+EXPORT_SYMBOL(compat_sock_get_timestampns);
+
asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
@@ -617,7 +654,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
a0 = a[0];
a1 = a[1];
- switch(call) {
+ switch (call) {
case SYS_SOCKET:
ret = sys_socket(a0, a1, a[2]);
break;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-07 16:41:26 +0000