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linux-user: make host_to_target_cmsg support SO_TIMESTAMP cmsg_type 

Signed-off-by: Jing Huang <jing.huang.pku@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Jing Huang 2012-07-24 14:01:42 +00:00 committed by Peter Maydell
parent 920394db81
commit aebf5bc727
1 changed files with 16 additions and 4 deletions
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20
linux-user/syscall.c
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@ -1359,16 +1359,28 @@ static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
target_cmsg->cmsg_len = tswapal(TARGET_CMSG_LEN(len));
if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
memcpy(target_data, data, len);
} else {
if ((cmsg->cmsg_level == TARGET_SOL_SOCKET) &&
(cmsg->cmsg_type == SCM_RIGHTS)) {
int *fd = (int *)data;
int *target_fd = (int *)target_data;
int i, numfds = len / sizeof(int);
for (i = 0; i < numfds; i++)
target_fd[i] = tswap32(fd[i]);
} else if ((cmsg->cmsg_level == TARGET_SOL_SOCKET) &&
(cmsg->cmsg_type == SO_TIMESTAMP) &&
(len == sizeof(struct timeval))) {
/* copy struct timeval to target */
struct timeval *tv = (struct timeval *)data;
struct target_timeval *target_tv =
(struct target_timeval *)target_data;
target_tv->tv_sec = tswapal(tv->tv_sec);
target_tv->tv_usec = tswapal(tv->tv_usec);
} else {
gemu_log("Unsupported ancillary data: %d/%d\n",
cmsg->cmsg_level, cmsg->cmsg_type);
memcpy(target_data, data, len);
}
cmsg = CMSG_NXTHDR(msgh, cmsg);