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[Qemu-devel] [PATCH V5 3/3] linux-user: make host_to_target_cmsg support
From: |
Jing Huang |
Subject: |
[Qemu-devel] [PATCH V5 3/3] linux-user: make host_to_target_cmsg support SO_TIMESTAMP cmsg_type |
Date: |
Tue, 24 Jul 2012 22:33:18 +0000 |
Signed-off-by: Jing Huang <address@hidden>
Reviewed-by: Peter Maydell <address@hidden>
---
linux-user/syscall.c | 20 ++++++++++++++++----
1 files changed, 16 insertions(+), 4 deletions(-)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index cc2a1c3..a5fa7a7 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -1347,16 +1347,28 @@ 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 = tswapl(tv->tv_sec);
+ target_tv->tv_usec = tswapl(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);
--
1.7.8.6
- [Qemu-devel] [PATCH V5 3/3] linux-user: make host_to_target_cmsg support SO_TIMESTAMP cmsg_type,
Jing Huang <=