Commit aebf5bc7 authored by Jing Huang's avatar Jing Huang Committed by Peter Maydell
Browse files

linux-user: make host_to_target_cmsg support SO_TIMESTAMP cmsg_type 



Signed-off-by: default avatarJing Huang <jing.huang.pku@gmail.com>
Reviewed-by: default avatarPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
parent 920394db

linux-user/syscall.c

+16 −4
Original line number Diff line number Diff line
@@ -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);