#include <sys/personality.h>
#include <sys/prctl.h>
#include <sys/resource.h>
-#include <sys/mman.h>
#include <sys/swap.h>
#include <linux/capability.h>
#include <sched.h>
#include <linux/route.h>
#include <linux/filter.h>
#include <linux/blkpg.h>
+#include <linux/netlink.h>
+#ifdef CONFIG_RTNETLINK
+#include <linux/rtnetlink.h>
+#endif
+#include <linux/audit.h>
#include "linux_loop.h"
#include "uname.h"
#define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2])
#define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2])
-
#undef _syscall0
#undef _syscall1
#undef _syscall2
#define __NR_sys_getpriority __NR_getpriority
#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
#define __NR_sys_syslog __NR_syslog
-#define __NR_sys_tgkill __NR_tgkill
-#define __NR_sys_tkill __NR_tkill
#define __NR_sys_futex __NR_futex
#define __NR_sys_inotify_init __NR_inotify_init
#define __NR_sys_inotify_add_watch __NR_inotify_add_watch
#endif
_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
-#if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
-_syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig)
-#endif
-#if defined(TARGET_NR_tkill) && defined(__NR_tkill)
-_syscall2(int,sys_tkill,int,tid,int,sig)
-#endif
#ifdef __NR_exit_group
_syscall1(int,exit_group,int,error_code)
#endif
static unsigned int target_fd_max;
+static TargetFdDataFunc fd_trans_target_to_host_data(int fd)
+{
+ if (fd >= 0 && fd < target_fd_max && target_fd_trans[fd]) {
+ return target_fd_trans[fd]->target_to_host_data;
+ }
+ return NULL;
+}
+
static TargetFdDataFunc fd_trans_host_to_target_data(int fd)
{
if (fd >= 0 && fd < target_fd_max && target_fd_trans[fd]) {
#undef TARGET_NR_inotify_rm_watch
#endif /* CONFIG_INOTIFY */
-#if defined(TARGET_NR_ppoll)
-#ifndef __NR_ppoll
-# define __NR_ppoll -1
-#endif
-#define __NR_sys_ppoll __NR_ppoll
-_syscall5(int, sys_ppoll, struct pollfd *, fds, nfds_t, nfds,
- struct timespec *, timeout, const sigset_t *, sigmask,
- size_t, sigsetsize)
-#endif
-
-#if defined(TARGET_NR_pselect6)
-#ifndef __NR_pselect6
-# define __NR_pselect6 -1
-#endif
-#define __NR_sys_pselect6 __NR_pselect6
-_syscall6(int, sys_pselect6, int, nfds, fd_set *, readfds, fd_set *, writefds,
- fd_set *, exceptfds, struct timespec *, timeout, void *, sig);
-#endif
-
#if defined(TARGET_NR_prlimit64)
#ifndef __NR_prlimit64
# define __NR_prlimit64 -1
return (abi_ulong)ret >= (abi_ulong)(-4096);
}
-char *target_strerror(int err)
+const char *target_strerror(int err)
{
+ if (err == TARGET_ERESTARTSYS) {
+ return "To be restarted";
+ }
+ if (err == TARGET_QEMU_ESIGRETURN) {
+ return "Successful exit from sigreturn";
+ }
+
if ((err >= ERRNO_TABLE_SIZE) || (err < 0)) {
return NULL;
}
struct rusage *, rusage)
safe_syscall5(int, waitid, idtype_t, idtype, id_t, id, siginfo_t *, infop, \
int, options, struct rusage *, rusage)
+safe_syscall3(int, execve, const char *, filename, char **, argv, char **, envp)
+safe_syscall6(int, pselect6, int, nfds, fd_set *, readfds, fd_set *, writefds, \
+ fd_set *, exceptfds, struct timespec *, timeout, void *, sig)
+safe_syscall5(int, ppoll, struct pollfd *, ufds, unsigned int, nfds,
+ struct timespec *, tsp, const sigset_t *, sigmask,
+ size_t, sigsetsize)
+safe_syscall6(int, epoll_pwait, int, epfd, struct epoll_event *, events,
+ int, maxevents, int, timeout, const sigset_t *, sigmask,
+ size_t, sigsetsize)
+safe_syscall6(int,futex,int *,uaddr,int,op,int,val, \
+ const struct timespec *,timeout,int *,uaddr2,int,val3)
+safe_syscall2(int, rt_sigsuspend, sigset_t *, newset, size_t, sigsetsize)
+safe_syscall2(int, kill, pid_t, pid, int, sig)
+safe_syscall2(int, tkill, int, tid, int, sig)
+safe_syscall3(int, tgkill, int, tgid, int, pid, int, sig)
+safe_syscall3(ssize_t, readv, int, fd, const struct iovec *, iov, int, iovcnt)
+safe_syscall3(ssize_t, writev, int, fd, const struct iovec *, iov, int, iovcnt)
+safe_syscall3(int, connect, int, fd, const struct sockaddr *, addr,
+ socklen_t, addrlen)
+safe_syscall6(ssize_t, sendto, int, fd, const void *, buf, size_t, len,
+ int, flags, const struct sockaddr *, addr, socklen_t, addrlen)
+safe_syscall6(ssize_t, recvfrom, int, fd, void *, buf, size_t, len,
+ int, flags, struct sockaddr *, addr, socklen_t *, addrlen)
+safe_syscall3(ssize_t, sendmsg, int, fd, const struct msghdr *, msg, int, flags)
+safe_syscall3(ssize_t, recvmsg, int, fd, struct msghdr *, msg, int, flags)
+safe_syscall2(int, flock, int, fd, int, operation)
+safe_syscall4(int, rt_sigtimedwait, const sigset_t *, these, siginfo_t *, uinfo,
+ const struct timespec *, uts, size_t, sigsetsize)
+safe_syscall4(int, accept4, int, fd, struct sockaddr *, addr, socklen_t *, len,
+ int, flags)
+safe_syscall2(int, nanosleep, const struct timespec *, req,
+ struct timespec *, rem)
+#ifdef TARGET_NR_clock_nanosleep
+safe_syscall4(int, clock_nanosleep, const clockid_t, clock, int, flags,
+ const struct timespec *, req, struct timespec *, rem)
+#endif
+#ifdef __NR_msgsnd
+safe_syscall4(int, msgsnd, int, msgid, const void *, msgp, size_t, sz,
+ int, flags)
+safe_syscall5(int, msgrcv, int, msgid, void *, msgp, size_t, sz,
+ long, msgtype, int, flags)
+safe_syscall4(int, semtimedop, int, semid, struct sembuf *, tsops,
+ unsigned, nsops, const struct timespec *, timeout)
+#else
+/* This host kernel architecture uses a single ipc syscall; fake up
+ * wrappers for the sub-operations to hide this implementation detail.
+ * Annoyingly we can't include linux/ipc.h to get the constant definitions
+ * for the call parameter because some structs in there conflict with the
+ * sys/ipc.h ones. So we just define them here, and rely on them being
+ * the same for all host architectures.
+ */
+#define Q_SEMTIMEDOP 4
+#define Q_MSGSND 11
+#define Q_MSGRCV 12
+#define Q_IPCCALL(VERSION, OP) ((VERSION) << 16 | (OP))
+
+safe_syscall6(int, ipc, int, call, long, first, long, second, long, third,
+ void *, ptr, long, fifth)
+static int safe_msgsnd(int msgid, const void *msgp, size_t sz, int flags)
+{
+ return safe_ipc(Q_IPCCALL(0, Q_MSGSND), msgid, sz, flags, (void *)msgp, 0);
+}
+static int safe_msgrcv(int msgid, void *msgp, size_t sz, long type, int flags)
+{
+ return safe_ipc(Q_IPCCALL(1, Q_MSGRCV), msgid, sz, flags, msgp, type);
+}
+static int safe_semtimedop(int semid, struct sembuf *tsops, unsigned nsops,
+ const struct timespec *timeout)
+{
+ return safe_ipc(Q_IPCCALL(0, Q_SEMTIMEDOP), semid, nsops, 0, tsops,
+ (long)timeout);
+}
+#endif
+#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
+safe_syscall5(int, mq_timedsend, int, mqdes, const char *, msg_ptr,
+ size_t, len, unsigned, prio, const struct timespec *, timeout)
+safe_syscall5(int, mq_timedreceive, int, mqdes, char *, msg_ptr,
+ size_t, len, unsigned *, prio, const struct timespec *, timeout)
+#endif
+/* We do ioctl like this rather than via safe_syscall3 to preserve the
+ * "third argument might be integer or pointer or not present" behaviour of
+ * the libc function.
+ */
+#define safe_ioctl(...) safe_syscall(__NR_ioctl, __VA_ARGS__)
+/* Similarly for fcntl. Note that callers must always:
+ * pass the F_GETLK64 etc constants rather than the unsuffixed F_GETLK
+ * use the flock64 struct rather than unsuffixed flock
+ * This will then work and use a 64-bit offset for both 32-bit and 64-bit hosts.
+ */
+#ifdef __NR_fcntl64
+#define safe_fcntl(...) safe_syscall(__NR_fcntl64, __VA_ARGS__)
+#else
+#define safe_fcntl(...) safe_syscall(__NR_fcntl, __VA_ARGS__)
+#endif
static inline int host_to_target_sock_type(int host_type)
{
int i, nw, j, k;
abi_ulong b, *target_fds;
- nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
+ nw = DIV_ROUND_UP(n, TARGET_ABI_BITS);
if (!(target_fds = lock_user(VERIFY_READ,
target_fds_addr,
sizeof(abi_ulong) * nw,
abi_long v;
abi_ulong *target_fds;
- nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
+ nw = DIV_ROUND_UP(n, TARGET_ABI_BITS);
if (!(target_fds = lock_user(VERIFY_WRITE,
target_fds_addr,
sizeof(abi_ulong) * nw,
{
fd_set rfds, wfds, efds;
fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
- struct timeval tv, *tv_ptr;
+ struct timeval tv;
+ struct timespec ts, *ts_ptr;
abi_long ret;
ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
if (target_tv_addr) {
if (copy_from_user_timeval(&tv, target_tv_addr))
return -TARGET_EFAULT;
- tv_ptr = &tv;
+ ts.tv_sec = tv.tv_sec;
+ ts.tv_nsec = tv.tv_usec * 1000;
+ ts_ptr = &ts;
} else {
- tv_ptr = NULL;
+ ts_ptr = NULL;
}
- ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
+ ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
+ ts_ptr, NULL));
if (!is_error(ret)) {
if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
return -TARGET_EFAULT;
- if (target_tv_addr && copy_to_user_timeval(target_tv_addr, &tv))
- return -TARGET_EFAULT;
+ if (target_tv_addr) {
+ tv.tv_sec = ts.tv_sec;
+ tv.tv_usec = ts.tv_nsec / 1000;
+ if (copy_to_user_timeval(target_tv_addr, &tv)) {
+ return -TARGET_EFAULT;
+ }
+ }
}
return ret;
memcpy(addr, target_saddr, len);
addr->sa_family = sa_family;
- if (sa_family == AF_PACKET) {
+ if (sa_family == AF_NETLINK) {
+ struct sockaddr_nl *nladdr;
+
+ nladdr = (struct sockaddr_nl *)addr;
+ nladdr->nl_pid = tswap32(nladdr->nl_pid);
+ nladdr->nl_groups = tswap32(nladdr->nl_groups);
+ } else if (sa_family == AF_PACKET) {
struct target_sockaddr_ll *lladdr;
lladdr = (struct target_sockaddr_ll *)addr;
return -TARGET_EFAULT;
memcpy(target_saddr, addr, len);
target_saddr->sa_family = tswap16(addr->sa_family);
+ if (addr->sa_family == AF_NETLINK) {
+ struct sockaddr_nl *target_nl = (struct sockaddr_nl *)target_saddr;
+ target_nl->nl_pid = tswap32(target_nl->nl_pid);
+ target_nl->nl_groups = tswap32(target_nl->nl_groups);
+ }
unlock_user(target_saddr, target_addr, len);
return 0;
return 0;
}
+static void tswap_nlmsghdr(struct nlmsghdr *nlh)
+{
+ nlh->nlmsg_len = tswap32(nlh->nlmsg_len);
+ nlh->nlmsg_type = tswap16(nlh->nlmsg_type);
+ nlh->nlmsg_flags = tswap16(nlh->nlmsg_flags);
+ nlh->nlmsg_seq = tswap32(nlh->nlmsg_seq);
+ nlh->nlmsg_pid = tswap32(nlh->nlmsg_pid);
+}
+
+static abi_long host_to_target_for_each_nlmsg(struct nlmsghdr *nlh,
+ size_t len,
+ abi_long (*host_to_target_nlmsg)
+ (struct nlmsghdr *))
+{
+ uint32_t nlmsg_len;
+ abi_long ret;
+
+ while (len > sizeof(struct nlmsghdr)) {
+
+ nlmsg_len = nlh->nlmsg_len;
+ if (nlmsg_len < sizeof(struct nlmsghdr) ||
+ nlmsg_len > len) {
+ break;
+ }
+
+ switch (nlh->nlmsg_type) {
+ case NLMSG_DONE:
+ tswap_nlmsghdr(nlh);
+ return 0;
+ case NLMSG_NOOP:
+ break;
+ case NLMSG_ERROR:
+ {
+ struct nlmsgerr *e = NLMSG_DATA(nlh);
+ e->error = tswap32(e->error);
+ tswap_nlmsghdr(&e->msg);
+ tswap_nlmsghdr(nlh);
+ return 0;
+ }
+ default:
+ ret = host_to_target_nlmsg(nlh);
+ if (ret < 0) {
+ tswap_nlmsghdr(nlh);
+ return ret;
+ }
+ break;
+ }
+ tswap_nlmsghdr(nlh);
+ len -= NLMSG_ALIGN(nlmsg_len);
+ nlh = (struct nlmsghdr *)(((char*)nlh) + NLMSG_ALIGN(nlmsg_len));
+ }
+ return 0;
+}
+
+static abi_long target_to_host_for_each_nlmsg(struct nlmsghdr *nlh,
+ size_t len,
+ abi_long (*target_to_host_nlmsg)
+ (struct nlmsghdr *))
+{
+ int ret;
+
+ while (len > sizeof(struct nlmsghdr)) {
+ if (tswap32(nlh->nlmsg_len) < sizeof(struct nlmsghdr) ||
+ tswap32(nlh->nlmsg_len) > len) {
+ break;
+ }
+ tswap_nlmsghdr(nlh);
+ switch (nlh->nlmsg_type) {
+ case NLMSG_DONE:
+ return 0;
+ case NLMSG_NOOP:
+ break;
+ case NLMSG_ERROR:
+ {
+ struct nlmsgerr *e = NLMSG_DATA(nlh);
+ e->error = tswap32(e->error);
+ tswap_nlmsghdr(&e->msg);
+ return 0;
+ }
+ default:
+ ret = target_to_host_nlmsg(nlh);
+ if (ret < 0) {
+ return ret;
+ }
+ }
+ len -= NLMSG_ALIGN(nlh->nlmsg_len);
+ nlh = (struct nlmsghdr *)(((char *)nlh) + NLMSG_ALIGN(nlh->nlmsg_len));
+ }
+ return 0;
+}
+
+#ifdef CONFIG_RTNETLINK
+static abi_long host_to_target_for_each_rtattr(struct rtattr *rtattr,
+ size_t len,
+ abi_long (*host_to_target_rtattr)
+ (struct rtattr *))
+{
+ unsigned short rta_len;
+ abi_long ret;
+
+ while (len > sizeof(struct rtattr)) {
+ rta_len = rtattr->rta_len;
+ if (rta_len < sizeof(struct rtattr) ||
+ rta_len > len) {
+ break;
+ }
+ ret = host_to_target_rtattr(rtattr);
+ rtattr->rta_len = tswap16(rtattr->rta_len);
+ rtattr->rta_type = tswap16(rtattr->rta_type);
+ if (ret < 0) {
+ return ret;
+ }
+ len -= RTA_ALIGN(rta_len);
+ rtattr = (struct rtattr *)(((char *)rtattr) + RTA_ALIGN(rta_len));
+ }
+ return 0;
+}
+
+static abi_long host_to_target_data_link_rtattr(struct rtattr *rtattr)
+{
+ uint32_t *u32;
+ struct rtnl_link_stats *st;
+ struct rtnl_link_stats64 *st64;
+ struct rtnl_link_ifmap *map;
+
+ switch (rtattr->rta_type) {
+ /* binary stream */
+ case IFLA_ADDRESS:
+ case IFLA_BROADCAST:
+ /* string */
+ case IFLA_IFNAME:
+ case IFLA_QDISC:
+ break;
+ /* uin8_t */
+ case IFLA_OPERSTATE:
+ case IFLA_LINKMODE:
+ case IFLA_CARRIER:
+ case IFLA_PROTO_DOWN:
+ break;
+ /* uint32_t */
+ case IFLA_MTU:
+ case IFLA_LINK:
+ case IFLA_WEIGHT:
+ case IFLA_TXQLEN:
+ case IFLA_CARRIER_CHANGES:
+ case IFLA_NUM_RX_QUEUES:
+ case IFLA_NUM_TX_QUEUES:
+ case IFLA_PROMISCUITY:
+ case IFLA_EXT_MASK:
+ case IFLA_LINK_NETNSID:
+ case IFLA_GROUP:
+ case IFLA_MASTER:
+ case IFLA_NUM_VF:
+ u32 = RTA_DATA(rtattr);
+ *u32 = tswap32(*u32);
+ break;
+ /* struct rtnl_link_stats */
+ case IFLA_STATS:
+ st = RTA_DATA(rtattr);
+ st->rx_packets = tswap32(st->rx_packets);
+ st->tx_packets = tswap32(st->tx_packets);
+ st->rx_bytes = tswap32(st->rx_bytes);
+ st->tx_bytes = tswap32(st->tx_bytes);
+ st->rx_errors = tswap32(st->rx_errors);
+ st->tx_errors = tswap32(st->tx_errors);
+ st->rx_dropped = tswap32(st->rx_dropped);
+ st->tx_dropped = tswap32(st->tx_dropped);
+ st->multicast = tswap32(st->multicast);
+ st->collisions = tswap32(st->collisions);
+
+ /* detailed rx_errors: */
+ st->rx_length_errors = tswap32(st->rx_length_errors);
+ st->rx_over_errors = tswap32(st->rx_over_errors);
+ st->rx_crc_errors = tswap32(st->rx_crc_errors);
+ st->rx_frame_errors = tswap32(st->rx_frame_errors);
+ st->rx_fifo_errors = tswap32(st->rx_fifo_errors);
+ st->rx_missed_errors = tswap32(st->rx_missed_errors);
+
+ /* detailed tx_errors */
+ st->tx_aborted_errors = tswap32(st->tx_aborted_errors);
+ st->tx_carrier_errors = tswap32(st->tx_carrier_errors);
+ st->tx_fifo_errors = tswap32(st->tx_fifo_errors);
+ st->tx_heartbeat_errors = tswap32(st->tx_heartbeat_errors);
+ st->tx_window_errors = tswap32(st->tx_window_errors);
+
+ /* for cslip etc */
+ st->rx_compressed = tswap32(st->rx_compressed);
+ st->tx_compressed = tswap32(st->tx_compressed);
+ break;
+ /* struct rtnl_link_stats64 */
+ case IFLA_STATS64:
+ st64 = RTA_DATA(rtattr);
+ st64->rx_packets = tswap64(st64->rx_packets);
+ st64->tx_packets = tswap64(st64->tx_packets);
+ st64->rx_bytes = tswap64(st64->rx_bytes);
+ st64->tx_bytes = tswap64(st64->tx_bytes);
+ st64->rx_errors = tswap64(st64->rx_errors);
+ st64->tx_errors = tswap64(st64->tx_errors);
+ st64->rx_dropped = tswap64(st64->rx_dropped);
+ st64->tx_dropped = tswap64(st64->tx_dropped);
+ st64->multicast = tswap64(st64->multicast);
+ st64->collisions = tswap64(st64->collisions);
+
+ /* detailed rx_errors: */
+ st64->rx_length_errors = tswap64(st64->rx_length_errors);
+ st64->rx_over_errors = tswap64(st64->rx_over_errors);
+ st64->rx_crc_errors = tswap64(st64->rx_crc_errors);
+ st64->rx_frame_errors = tswap64(st64->rx_frame_errors);
+ st64->rx_fifo_errors = tswap64(st64->rx_fifo_errors);
+ st64->rx_missed_errors = tswap64(st64->rx_missed_errors);
+
+ /* detailed tx_errors */
+ st64->tx_aborted_errors = tswap64(st64->tx_aborted_errors);
+ st64->tx_carrier_errors = tswap64(st64->tx_carrier_errors);
+ st64->tx_fifo_errors = tswap64(st64->tx_fifo_errors);
+ st64->tx_heartbeat_errors = tswap64(st64->tx_heartbeat_errors);
+ st64->tx_window_errors = tswap64(st64->tx_window_errors);
+
+ /* for cslip etc */
+ st64->rx_compressed = tswap64(st64->rx_compressed);
+ st64->tx_compressed = tswap64(st64->tx_compressed);
+ break;
+ /* struct rtnl_link_ifmap */
+ case IFLA_MAP:
+ map = RTA_DATA(rtattr);
+ map->mem_start = tswap64(map->mem_start);
+ map->mem_end = tswap64(map->mem_end);
+ map->base_addr = tswap64(map->base_addr);
+ map->irq = tswap16(map->irq);
+ break;
+ /* nested */
+ case IFLA_AF_SPEC:
+ case IFLA_LINKINFO:
+ /* FIXME: implement nested type */
+ gemu_log("Unimplemented nested type %d\n", rtattr->rta_type);
+ break;
+ default:
+ gemu_log("Unknown host IFLA type: %d\n", rtattr->rta_type);
+ break;
+ }
+ return 0;
+}
+
+static abi_long host_to_target_data_addr_rtattr(struct rtattr *rtattr)
+{
+ uint32_t *u32;
+ struct ifa_cacheinfo *ci;
+
+ switch (rtattr->rta_type) {
+ /* binary: depends on family type */
+ case IFA_ADDRESS:
+ case IFA_LOCAL:
+ break;
+ /* string */
+ case IFA_LABEL:
+ break;
+ /* u32 */
+ case IFA_FLAGS:
+ case IFA_BROADCAST:
+ u32 = RTA_DATA(rtattr);
+ *u32 = tswap32(*u32);
+ break;
+ /* struct ifa_cacheinfo */
+ case IFA_CACHEINFO:
+ ci = RTA_DATA(rtattr);
+ ci->ifa_prefered = tswap32(ci->ifa_prefered);
+ ci->ifa_valid = tswap32(ci->ifa_valid);
+ ci->cstamp = tswap32(ci->cstamp);
+ ci->tstamp = tswap32(ci->tstamp);
+ break;
+ default:
+ gemu_log("Unknown host IFA type: %d\n", rtattr->rta_type);
+ break;
+ }
+ return 0;
+}
+
+static abi_long host_to_target_data_route_rtattr(struct rtattr *rtattr)
+{
+ uint32_t *u32;
+ switch (rtattr->rta_type) {
+ /* binary: depends on family type */
+ case RTA_GATEWAY:
+ case RTA_DST:
+ case RTA_PREFSRC:
+ break;
+ /* u32 */
+ case RTA_PRIORITY:
+ case RTA_TABLE:
+ case RTA_OIF:
+ u32 = RTA_DATA(rtattr);
+ *u32 = tswap32(*u32);
+ break;
+ default:
+ gemu_log("Unknown host RTA type: %d\n", rtattr->rta_type);
+ break;
+ }
+ return 0;
+}
+
+static abi_long host_to_target_link_rtattr(struct rtattr *rtattr,
+ uint32_t rtattr_len)
+{
+ return host_to_target_for_each_rtattr(rtattr, rtattr_len,
+ host_to_target_data_link_rtattr);
+}
+
+static abi_long host_to_target_addr_rtattr(struct rtattr *rtattr,
+ uint32_t rtattr_len)
+{
+ return host_to_target_for_each_rtattr(rtattr, rtattr_len,
+ host_to_target_data_addr_rtattr);
+}
+
+static abi_long host_to_target_route_rtattr(struct rtattr *rtattr,
+ uint32_t rtattr_len)
+{
+ return host_to_target_for_each_rtattr(rtattr, rtattr_len,
+ host_to_target_data_route_rtattr);
+}
+
+static abi_long host_to_target_data_route(struct nlmsghdr *nlh)
+{
+ uint32_t nlmsg_len;
+ struct ifinfomsg *ifi;
+ struct ifaddrmsg *ifa;
+ struct rtmsg *rtm;
+
+ nlmsg_len = nlh->nlmsg_len;
+ switch (nlh->nlmsg_type) {
+ case RTM_NEWLINK:
+ case RTM_DELLINK:
+ case RTM_GETLINK:
+ if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifi))) {
+ ifi = NLMSG_DATA(nlh);
+ ifi->ifi_type = tswap16(ifi->ifi_type);
+ ifi->ifi_index = tswap32(ifi->ifi_index);
+ ifi->ifi_flags = tswap32(ifi->ifi_flags);
+ ifi->ifi_change = tswap32(ifi->ifi_change);
+ host_to_target_link_rtattr(IFLA_RTA(ifi),
+ nlmsg_len - NLMSG_LENGTH(sizeof(*ifi)));
+ }
+ break;
+ case RTM_NEWADDR:
+ case RTM_DELADDR:
+ case RTM_GETADDR:
+ if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifa))) {
+ ifa = NLMSG_DATA(nlh);
+ ifa->ifa_index = tswap32(ifa->ifa_index);
+ host_to_target_addr_rtattr(IFA_RTA(ifa),
+ nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
+ }
+ break;
+ case RTM_NEWROUTE:
+ case RTM_DELROUTE:
+ case RTM_GETROUTE:
+ if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*rtm))) {
+ rtm = NLMSG_DATA(nlh);
+ rtm->rtm_flags = tswap32(rtm->rtm_flags);
+ host_to_target_route_rtattr(RTM_RTA(rtm),
+ nlmsg_len - NLMSG_LENGTH(sizeof(*rtm)));
+ }
+ break;
+ default:
+ return -TARGET_EINVAL;
+ }
+ return 0;
+}
+
+static inline abi_long host_to_target_nlmsg_route(struct nlmsghdr *nlh,
+ size_t len)
+{
+ return host_to_target_for_each_nlmsg(nlh, len, host_to_target_data_route);
+}
+
+static abi_long target_to_host_for_each_rtattr(struct rtattr *rtattr,
+ size_t len,
+ abi_long (*target_to_host_rtattr)
+ (struct rtattr *))
+{
+ abi_long ret;
+
+ while (len >= sizeof(struct rtattr)) {
+ if (tswap16(rtattr->rta_len) < sizeof(struct rtattr) ||
+ tswap16(rtattr->rta_len) > len) {
+ break;
+ }
+ rtattr->rta_len = tswap16(rtattr->rta_len);
+ rtattr->rta_type = tswap16(rtattr->rta_type);
+ ret = target_to_host_rtattr(rtattr);
+ if (ret < 0) {
+ return ret;
+ }
+ len -= RTA_ALIGN(rtattr->rta_len);
+ rtattr = (struct rtattr *)(((char *)rtattr) +
+ RTA_ALIGN(rtattr->rta_len));
+ }
+ return 0;
+}
+
+static abi_long target_to_host_data_link_rtattr(struct rtattr *rtattr)
+{
+ switch (rtattr->rta_type) {
+ default:
+ gemu_log("Unknown target IFLA type: %d\n", rtattr->rta_type);
+ break;
+ }
+ return 0;
+}
+
+static abi_long target_to_host_data_addr_rtattr(struct rtattr *rtattr)
+{
+ switch (rtattr->rta_type) {
+ /* binary: depends on family type */
+ case IFA_LOCAL:
+ case IFA_ADDRESS:
+ break;
+ default:
+ gemu_log("Unknown target IFA type: %d\n", rtattr->rta_type);
+ break;
+ }
+ return 0;
+}
+
+static abi_long target_to_host_data_route_rtattr(struct rtattr *rtattr)
+{
+ uint32_t *u32;
+ switch (rtattr->rta_type) {
+ /* binary: depends on family type */
+ case RTA_DST:
+ case RTA_SRC:
+ case RTA_GATEWAY:
+ break;
+ /* u32 */
+ case RTA_OIF:
+ u32 = RTA_DATA(rtattr);
+ *u32 = tswap32(*u32);
+ break;
+ default:
+ gemu_log("Unknown target RTA type: %d\n", rtattr->rta_type);
+ break;
+ }
+ return 0;
+}
+
+static void target_to_host_link_rtattr(struct rtattr *rtattr,
+ uint32_t rtattr_len)
+{
+ target_to_host_for_each_rtattr(rtattr, rtattr_len,
+ target_to_host_data_link_rtattr);
+}
+
+static void target_to_host_addr_rtattr(struct rtattr *rtattr,
+ uint32_t rtattr_len)
+{
+ target_to_host_for_each_rtattr(rtattr, rtattr_len,
+ target_to_host_data_addr_rtattr);
+}
+
+static void target_to_host_route_rtattr(struct rtattr *rtattr,
+ uint32_t rtattr_len)
+{
+ target_to_host_for_each_rtattr(rtattr, rtattr_len,
+ target_to_host_data_route_rtattr);
+}
+
+static abi_long target_to_host_data_route(struct nlmsghdr *nlh)
+{
+ struct ifinfomsg *ifi;
+ struct ifaddrmsg *ifa;
+ struct rtmsg *rtm;
+
+ switch (nlh->nlmsg_type) {
+ case RTM_GETLINK:
+ break;
+ case RTM_NEWLINK:
+ case RTM_DELLINK:
+ if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifi))) {
+ ifi = NLMSG_DATA(nlh);
+ ifi->ifi_type = tswap16(ifi->ifi_type);
+ ifi->ifi_index = tswap32(ifi->ifi_index);
+ ifi->ifi_flags = tswap32(ifi->ifi_flags);
+ ifi->ifi_change = tswap32(ifi->ifi_change);
+ target_to_host_link_rtattr(IFLA_RTA(ifi), nlh->nlmsg_len -
+ NLMSG_LENGTH(sizeof(*ifi)));
+ }
+ break;
+ case RTM_GETADDR:
+ case RTM_NEWADDR:
+ case RTM_DELADDR:
+ if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifa))) {
+ ifa = NLMSG_DATA(nlh);
+ ifa->ifa_index = tswap32(ifa->ifa_index);
+ target_to_host_addr_rtattr(IFA_RTA(ifa), nlh->nlmsg_len -
+ NLMSG_LENGTH(sizeof(*ifa)));
+ }
+ break;
+ case RTM_GETROUTE:
+ break;
+ case RTM_NEWROUTE:
+ case RTM_DELROUTE:
+ if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*rtm))) {
+ rtm = NLMSG_DATA(nlh);
+ rtm->rtm_flags = tswap32(rtm->rtm_flags);
+ target_to_host_route_rtattr(RTM_RTA(rtm), nlh->nlmsg_len -
+ NLMSG_LENGTH(sizeof(*rtm)));
+ }
+ break;
+ default:
+ return -TARGET_EOPNOTSUPP;
+ }
+ return 0;
+}
+
+static abi_long target_to_host_nlmsg_route(struct nlmsghdr *nlh, size_t len)
+{
+ return target_to_host_for_each_nlmsg(nlh, len, target_to_host_data_route);
+}
+#endif /* CONFIG_RTNETLINK */
+
+static abi_long host_to_target_data_audit(struct nlmsghdr *nlh)
+{
+ switch (nlh->nlmsg_type) {
+ default:
+ gemu_log("Unknown host audit message type %d\n",
+ nlh->nlmsg_type);
+ return -TARGET_EINVAL;
+ }
+ return 0;
+}
+
+static inline abi_long host_to_target_nlmsg_audit(struct nlmsghdr *nlh,
+ size_t len)
+{
+ return host_to_target_for_each_nlmsg(nlh, len, host_to_target_data_audit);
+}
+
+static abi_long target_to_host_data_audit(struct nlmsghdr *nlh)
+{
+ switch (nlh->nlmsg_type) {
+ case AUDIT_USER:
+ case AUDIT_FIRST_USER_MSG ... AUDIT_LAST_USER_MSG:
+ case AUDIT_FIRST_USER_MSG2 ... AUDIT_LAST_USER_MSG2:
+ break;
+ default:
+ gemu_log("Unknown target audit message type %d\n",
+ nlh->nlmsg_type);
+ return -TARGET_EINVAL;
+ }
+
+ return 0;
+}
+
+static abi_long target_to_host_nlmsg_audit(struct nlmsghdr *nlh, size_t len)
+{
+ return target_to_host_for_each_nlmsg(nlh, len, target_to_host_data_audit);
+}
+
/* do_setsockopt() Must return target values and target errnos. */
static abi_long do_setsockopt(int sockfd, int level, int optname,
abi_ulong optval_addr, socklen_t optlen)
.target_to_host_addr = packet_target_to_host_sockaddr,
};
+#ifdef CONFIG_RTNETLINK
+static abi_long netlink_route_target_to_host(void *buf, size_t len)
+{
+ return target_to_host_nlmsg_route(buf, len);
+}
+
+static abi_long netlink_route_host_to_target(void *buf, size_t len)
+{
+ return host_to_target_nlmsg_route(buf, len);
+}
+
+static TargetFdTrans target_netlink_route_trans = {
+ .target_to_host_data = netlink_route_target_to_host,
+ .host_to_target_data = netlink_route_host_to_target,
+};
+#endif /* CONFIG_RTNETLINK */
+
+static abi_long netlink_audit_target_to_host(void *buf, size_t len)
+{
+ return target_to_host_nlmsg_audit(buf, len);
+}
+
+static abi_long netlink_audit_host_to_target(void *buf, size_t len)
+{
+ return host_to_target_nlmsg_audit(buf, len);
+}
+
+static TargetFdTrans target_netlink_audit_trans = {
+ .target_to_host_data = netlink_audit_target_to_host,
+ .host_to_target_data = netlink_audit_host_to_target,
+};
+
/* do_socket() Must return target values and target errnos. */
static abi_long do_socket(int domain, int type, int protocol)
{
return ret;
}
- if (domain == PF_NETLINK)
- return -TARGET_EAFNOSUPPORT;
+ if (domain == PF_NETLINK && !(
+#ifdef CONFIG_RTNETLINK
+ protocol == NETLINK_ROUTE ||
+#endif
+ protocol == NETLINK_KOBJECT_UEVENT ||
+ protocol == NETLINK_AUDIT)) {
+ return -EPFNOSUPPORT;
+ }
if (domain == AF_PACKET ||
(domain == AF_INET && type == SOCK_PACKET)) {
* if socket type is SOCK_PACKET, bind by name
*/
fd_trans_register(ret, &target_packet_trans);
+ } else if (domain == PF_NETLINK) {
+ switch (protocol) {
+#ifdef CONFIG_RTNETLINK
+ case NETLINK_ROUTE:
+ fd_trans_register(ret, &target_netlink_route_trans);
+ break;
+#endif
+ case NETLINK_KOBJECT_UEVENT:
+ /* nothing to do: messages are strings */
+ break;
+ case NETLINK_AUDIT:
+ fd_trans_register(ret, &target_netlink_audit_trans);
+ break;
+ default:
+ g_assert_not_reached();
+ }
}
}
return ret;
if (ret)
return ret;
- return get_errno(connect(sockfd, addr, addrlen));
+ return get_errno(safe_connect(sockfd, addr, addrlen));
}
/* do_sendrecvmsg_locked() Must return target values and target errnos. */
msg.msg_iov = vec;
if (send) {
- ret = target_to_host_cmsg(&msg, msgp);
- if (ret == 0)
- ret = get_errno(sendmsg(fd, &msg, flags));
+ if (fd_trans_target_to_host_data(fd)) {
+ ret = fd_trans_target_to_host_data(fd)(msg.msg_iov->iov_base,
+ msg.msg_iov->iov_len);
+ } else {
+ ret = target_to_host_cmsg(&msg, msgp);
+ }
+ if (ret == 0) {
+ ret = get_errno(safe_sendmsg(fd, &msg, flags));
+ }
} else {
- ret = get_errno(recvmsg(fd, &msg, flags));
+ ret = get_errno(safe_recvmsg(fd, &msg, flags));
if (!is_error(ret)) {
len = ret;
- ret = host_to_target_cmsg(msgp, &msg);
+ if (fd_trans_host_to_target_data(fd)) {
+ ret = fd_trans_host_to_target_data(fd)(msg.msg_iov->iov_base,
+ len);
+ } else {
+ ret = host_to_target_cmsg(msgp, &msg);
+ }
if (!is_error(ret)) {
msgp->msg_namelen = tswap32(msg.msg_namelen);
if (msg.msg_name != NULL) {
return ret;
}
-/* If we don't have a system accept4() then just call accept.
- * The callsites to do_accept4() will ensure that they don't
- * pass a non-zero flags argument in this config.
- */
-#ifndef CONFIG_ACCEPT4
-static inline int accept4(int sockfd, struct sockaddr *addr,
- socklen_t *addrlen, int flags)
-{
- assert(flags == 0);
- return accept(sockfd, addr, addrlen);
-}
-#endif
-
/* do_accept4() Must return target values and target errnos. */
static abi_long do_accept4(int fd, abi_ulong target_addr,
abi_ulong target_addrlen_addr, int flags)
host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
if (target_addr == 0) {
- return get_errno(accept4(fd, NULL, NULL, host_flags));
+ return get_errno(safe_accept4(fd, NULL, NULL, host_flags));
}
/* linux returns EINVAL if addrlen pointer is invalid */
addr = alloca(addrlen);
- ret = get_errno(accept4(fd, addr, &addrlen, host_flags));
+ ret = get_errno(safe_accept4(fd, addr, &addrlen, host_flags));
if (!is_error(ret)) {
host_to_target_sockaddr(target_addr, addr, addrlen);
if (put_user_u32(addrlen, target_addrlen_addr))
host_msg = lock_user(VERIFY_READ, msg, len, 1);
if (!host_msg)
return -TARGET_EFAULT;
+ if (fd_trans_target_to_host_data(fd)) {
+ ret = fd_trans_target_to_host_data(fd)(host_msg, len);
+ if (ret < 0) {
+ unlock_user(host_msg, msg, 0);
+ return ret;
+ }
+ }
if (target_addr) {
addr = alloca(addrlen+1);
ret = target_to_host_sockaddr(fd, addr, target_addr, addrlen);
unlock_user(host_msg, msg, 0);
return ret;
}
- ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
+ ret = get_errno(safe_sendto(fd, host_msg, len, flags, addr, addrlen));
} else {
- ret = get_errno(send(fd, host_msg, len, flags));
+ ret = get_errno(safe_sendto(fd, host_msg, len, flags, NULL, 0));
}
unlock_user(host_msg, msg, 0);
return ret;
goto fail;
}
addr = alloca(addrlen);
- ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
+ ret = get_errno(safe_recvfrom(fd, host_msg, len, flags,
+ addr, &addrlen));
} else {
addr = NULL; /* To keep compiler quiet. */
- ret = get_errno(qemu_recv(fd, host_msg, len, flags));
+ ret = get_errno(safe_recvfrom(fd, host_msg, len, flags, NULL, 0));
}
if (!is_error(ret)) {
if (target_addr) {
if (target_to_host_sembuf(sops, ptr, nsops))
return -TARGET_EFAULT;
- return get_errno(semop(semid, sops, nsops));
+ return get_errno(safe_semtimedop(semid, sops, nsops, NULL));
}
struct target_msqid_ds
}
host_mb->mtype = (abi_long) tswapal(target_mb->mtype);
memcpy(host_mb->mtext, target_mb->mtext, msgsz);
- ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg));
+ ret = get_errno(safe_msgsnd(msqid, host_mb, msgsz, msgflg));
g_free(host_mb);
unlock_user_struct(target_mb, msgp, 0);
}
static inline abi_long do_msgrcv(int msqid, abi_long msgp,
- unsigned int msgsz, abi_long msgtyp,
+ ssize_t msgsz, abi_long msgtyp,
int msgflg)
{
struct target_msgbuf *target_mb;
struct msgbuf *host_mb;
abi_long ret = 0;
+ if (msgsz < 0) {
+ return -TARGET_EINVAL;
+ }
+
if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
return -TARGET_EFAULT;
- host_mb = g_malloc(msgsz+sizeof(long));
- ret = get_errno(msgrcv(msqid, host_mb, msgsz, msgtyp, msgflg));
+ host_mb = g_try_malloc(msgsz + sizeof(long));
+ if (!host_mb) {
+ ret = -TARGET_ENOMEM;
+ goto end;
+ }
+ ret = get_errno(safe_msgrcv(msqid, host_mb, msgsz, msgtyp, msgflg));
if (ret > 0) {
abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
memcpy(fm, buf_temp, sizeof(struct fiemap));
free_fm = 1;
}
- ret = get_errno(ioctl(fd, ie->host_cmd, fm));
+ ret = get_errno(safe_ioctl(fd, ie->host_cmd, fm));
if (!is_error(ret)) {
target_size_out = target_size_in;
/* An extent_count of 0 means we were only counting the extents
host_ifconf->ifc_len = host_ifc_len;
host_ifconf->ifc_buf = host_ifc_buf;
- ret = get_errno(ioctl(fd, ie->host_cmd, host_ifconf));
+ ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_ifconf));
if (!is_error(ret)) {
/* convert host ifc_len to target ifc_len */
}
unlock_user(argptr, guest_data, 0);
- ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
+ ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
if (!is_error(ret)) {
guest_data = arg + host_dm->data_start;
guest_data_size = host_dm->data_size - host_dm->data_start;
/* Swizzle the data pointer to our local copy and call! */
host_blkpg->data = &host_part;
- ret = get_errno(ioctl(fd, ie->host_cmd, host_blkpg));
+ ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_blkpg));
out:
return ret;
}
unlock_user(argptr, arg, 0);
- ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
+ ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
if (*host_rt_dev_ptr != 0) {
unlock_user((void *)*host_rt_dev_ptr,
*target_rt_dev_ptr, 0);
int fd, int cmd, abi_long arg)
{
int sig = target_to_host_signal(arg);
- return get_errno(ioctl(fd, ie->host_cmd, sig));
+ return get_errno(safe_ioctl(fd, ie->host_cmd, sig));
}
static IOCTLEntry ioctl_entries[] = {
switch(arg_type[0]) {
case TYPE_NULL:
/* no argument */
- ret = get_errno(ioctl(fd, ie->host_cmd));
+ ret = get_errno(safe_ioctl(fd, ie->host_cmd));
break;
case TYPE_PTRVOID:
case TYPE_INT:
- ret = get_errno(ioctl(fd, ie->host_cmd, arg));
+ ret = get_errno(safe_ioctl(fd, ie->host_cmd, arg));
break;
case TYPE_PTR:
arg_type++;
target_size = thunk_type_size(arg_type, 0);
switch(ie->access) {
case IOC_R:
- ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
+ ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
if (!is_error(ret)) {
argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
if (!argptr)
return -TARGET_EFAULT;
thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
unlock_user(argptr, arg, 0);
- ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
+ ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
break;
default:
case IOC_RW:
return -TARGET_EFAULT;
thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
unlock_user(argptr, arg, 0);
- ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
+ ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
if (!is_error(ret)) {
argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
if (!argptr)
new_cpu->opaque = ts;
ts->bprm = parent_ts->bprm;
ts->info = parent_ts->info;
+ ts->signal_mask = parent_ts->signal_mask;
nptl_flags = flags;
flags &= ~CLONE_NPTL_FLAGS2;
if ((flags & ~(CSIGNAL | CLONE_NPTL_FLAGS2)) != 0) {
return -TARGET_EINVAL;
}
+
+ if (block_signals()) {
+ return -TARGET_ERESTARTSYS;
+ }
+
fork_start();
ret = fork();
if (ret == 0) {
case TARGET_F_SETFL:
return cmd;
case TARGET_F_GETLK:
- return F_GETLK;
- case TARGET_F_SETLK:
- return F_SETLK;
- case TARGET_F_SETLKW:
- return F_SETLKW;
+ return F_GETLK64;
+ case TARGET_F_SETLK:
+ return F_SETLK64;
+ case TARGET_F_SETLKW:
+ return F_SETLKW64;
case TARGET_F_GETOWN:
return F_GETOWN;
case TARGET_F_SETOWN:
case TARGET_F_SETOWN_EX:
return F_SETOWN_EX;
#endif
+ case TARGET_F_SETPIPE_SZ:
+ return F_SETPIPE_SZ;
+ case TARGET_F_GETPIPE_SZ:
+ return F_GETPIPE_SZ;
default:
return -TARGET_EINVAL;
}
{ 0, 0, 0, 0 }
};
-static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
+static inline abi_long copy_from_user_flock(struct flock64 *fl,
+ abi_ulong target_flock_addr)
{
- struct flock fl;
struct target_flock *target_fl;
+ short l_type;
+
+ if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
+ return -TARGET_EFAULT;
+ }
+
+ __get_user(l_type, &target_fl->l_type);
+ fl->l_type = target_to_host_bitmask(l_type, flock_tbl);
+ __get_user(fl->l_whence, &target_fl->l_whence);
+ __get_user(fl->l_start, &target_fl->l_start);
+ __get_user(fl->l_len, &target_fl->l_len);
+ __get_user(fl->l_pid, &target_fl->l_pid);
+ unlock_user_struct(target_fl, target_flock_addr, 0);
+ return 0;
+}
+
+static inline abi_long copy_to_user_flock(abi_ulong target_flock_addr,
+ const struct flock64 *fl)
+{
+ struct target_flock *target_fl;
+ short l_type;
+
+ if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
+ return -TARGET_EFAULT;
+ }
+
+ l_type = host_to_target_bitmask(fl->l_type, flock_tbl);
+ __put_user(l_type, &target_fl->l_type);
+ __put_user(fl->l_whence, &target_fl->l_whence);
+ __put_user(fl->l_start, &target_fl->l_start);
+ __put_user(fl->l_len, &target_fl->l_len);
+ __put_user(fl->l_pid, &target_fl->l_pid);
+ unlock_user_struct(target_fl, target_flock_addr, 1);
+ return 0;
+}
+
+typedef abi_long from_flock64_fn(struct flock64 *fl, abi_ulong target_addr);
+typedef abi_long to_flock64_fn(abi_ulong target_addr, const struct flock64 *fl);
+
+#if defined(TARGET_ARM) && TARGET_ABI_BITS == 32
+static inline abi_long copy_from_user_eabi_flock64(struct flock64 *fl,
+ abi_ulong target_flock_addr)
+{
+ struct target_eabi_flock64 *target_fl;
+ short l_type;
+
+ if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
+ return -TARGET_EFAULT;
+ }
+
+ __get_user(l_type, &target_fl->l_type);
+ fl->l_type = target_to_host_bitmask(l_type, flock_tbl);
+ __get_user(fl->l_whence, &target_fl->l_whence);
+ __get_user(fl->l_start, &target_fl->l_start);
+ __get_user(fl->l_len, &target_fl->l_len);
+ __get_user(fl->l_pid, &target_fl->l_pid);
+ unlock_user_struct(target_fl, target_flock_addr, 0);
+ return 0;
+}
+
+static inline abi_long copy_to_user_eabi_flock64(abi_ulong target_flock_addr,
+ const struct flock64 *fl)
+{
+ struct target_eabi_flock64 *target_fl;
+ short l_type;
+
+ if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
+ return -TARGET_EFAULT;
+ }
+
+ l_type = host_to_target_bitmask(fl->l_type, flock_tbl);
+ __put_user(l_type, &target_fl->l_type);
+ __put_user(fl->l_whence, &target_fl->l_whence);
+ __put_user(fl->l_start, &target_fl->l_start);
+ __put_user(fl->l_len, &target_fl->l_len);
+ __put_user(fl->l_pid, &target_fl->l_pid);
+ unlock_user_struct(target_fl, target_flock_addr, 1);
+ return 0;
+}
+#endif
+
+static inline abi_long copy_from_user_flock64(struct flock64 *fl,
+ abi_ulong target_flock_addr)
+{
+ struct target_flock64 *target_fl;
+ short l_type;
+
+ if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
+ return -TARGET_EFAULT;
+ }
+
+ __get_user(l_type, &target_fl->l_type);
+ fl->l_type = target_to_host_bitmask(l_type, flock_tbl);
+ __get_user(fl->l_whence, &target_fl->l_whence);
+ __get_user(fl->l_start, &target_fl->l_start);
+ __get_user(fl->l_len, &target_fl->l_len);
+ __get_user(fl->l_pid, &target_fl->l_pid);
+ unlock_user_struct(target_fl, target_flock_addr, 0);
+ return 0;
+}
+
+static inline abi_long copy_to_user_flock64(abi_ulong target_flock_addr,
+ const struct flock64 *fl)
+{
+ struct target_flock64 *target_fl;
+ short l_type;
+
+ if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
+ return -TARGET_EFAULT;
+ }
+
+ l_type = host_to_target_bitmask(fl->l_type, flock_tbl);
+ __put_user(l_type, &target_fl->l_type);
+ __put_user(fl->l_whence, &target_fl->l_whence);
+ __put_user(fl->l_start, &target_fl->l_start);
+ __put_user(fl->l_len, &target_fl->l_len);
+ __put_user(fl->l_pid, &target_fl->l_pid);
+ unlock_user_struct(target_fl, target_flock_addr, 1);
+ return 0;
+}
+
+static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
+{
struct flock64 fl64;
- struct target_flock64 *target_fl64;
#ifdef F_GETOWN_EX
struct f_owner_ex fox;
struct target_f_owner_ex *target_fox;
switch(cmd) {
case TARGET_F_GETLK:
- if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
- return -TARGET_EFAULT;
- fl.l_type =
- target_to_host_bitmask(tswap16(target_fl->l_type), flock_tbl);
- fl.l_whence = tswap16(target_fl->l_whence);
- fl.l_start = tswapal(target_fl->l_start);
- fl.l_len = tswapal(target_fl->l_len);
- fl.l_pid = tswap32(target_fl->l_pid);
- unlock_user_struct(target_fl, arg, 0);
- ret = get_errno(fcntl(fd, host_cmd, &fl));
+ ret = copy_from_user_flock(&fl64, arg);
+ if (ret) {
+ return ret;
+ }
+ ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
if (ret == 0) {
- if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0))
- return -TARGET_EFAULT;
- target_fl->l_type =
- host_to_target_bitmask(tswap16(fl.l_type), flock_tbl);
- target_fl->l_whence = tswap16(fl.l_whence);
- target_fl->l_start = tswapal(fl.l_start);
- target_fl->l_len = tswapal(fl.l_len);
- target_fl->l_pid = tswap32(fl.l_pid);
- unlock_user_struct(target_fl, arg, 1);
+ ret = copy_to_user_flock(arg, &fl64);
}
break;
case TARGET_F_SETLK:
case TARGET_F_SETLKW:
- if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
- return -TARGET_EFAULT;
- fl.l_type =
- target_to_host_bitmask(tswap16(target_fl->l_type), flock_tbl);
- fl.l_whence = tswap16(target_fl->l_whence);
- fl.l_start = tswapal(target_fl->l_start);
- fl.l_len = tswapal(target_fl->l_len);
- fl.l_pid = tswap32(target_fl->l_pid);
- unlock_user_struct(target_fl, arg, 0);
- ret = get_errno(fcntl(fd, host_cmd, &fl));
+ ret = copy_from_user_flock(&fl64, arg);
+ if (ret) {
+ return ret;
+ }
+ ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
break;
case TARGET_F_GETLK64:
- if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
- return -TARGET_EFAULT;
- fl64.l_type =
- target_to_host_bitmask(tswap16(target_fl64->l_type), flock_tbl) >> 1;
- fl64.l_whence = tswap16(target_fl64->l_whence);
- fl64.l_start = tswap64(target_fl64->l_start);
- fl64.l_len = tswap64(target_fl64->l_len);
- fl64.l_pid = tswap32(target_fl64->l_pid);
- unlock_user_struct(target_fl64, arg, 0);
- ret = get_errno(fcntl(fd, host_cmd, &fl64));
+ ret = copy_from_user_flock64(&fl64, arg);
+ if (ret) {
+ return ret;
+ }
+ ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
if (ret == 0) {
- if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0))
- return -TARGET_EFAULT;
- target_fl64->l_type =
- host_to_target_bitmask(tswap16(fl64.l_type), flock_tbl) >> 1;
- target_fl64->l_whence = tswap16(fl64.l_whence);
- target_fl64->l_start = tswap64(fl64.l_start);
- target_fl64->l_len = tswap64(fl64.l_len);
- target_fl64->l_pid = tswap32(fl64.l_pid);
- unlock_user_struct(target_fl64, arg, 1);
+ ret = copy_to_user_flock64(arg, &fl64);
}
break;
case TARGET_F_SETLK64:
case TARGET_F_SETLKW64:
- if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
- return -TARGET_EFAULT;
- fl64.l_type =
- target_to_host_bitmask(tswap16(target_fl64->l_type), flock_tbl) >> 1;
- fl64.l_whence = tswap16(target_fl64->l_whence);
- fl64.l_start = tswap64(target_fl64->l_start);
- fl64.l_len = tswap64(target_fl64->l_len);
- fl64.l_pid = tswap32(target_fl64->l_pid);
- unlock_user_struct(target_fl64, arg, 0);
- ret = get_errno(fcntl(fd, host_cmd, &fl64));
+ ret = copy_from_user_flock64(&fl64, arg);
+ if (ret) {
+ return ret;
+ }
+ ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
break;
case TARGET_F_GETFL:
- ret = get_errno(fcntl(fd, host_cmd, arg));
+ ret = get_errno(safe_fcntl(fd, host_cmd, arg));
if (ret >= 0) {
ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
}
break;
case TARGET_F_SETFL:
- ret = get_errno(fcntl(fd, host_cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)));
+ ret = get_errno(safe_fcntl(fd, host_cmd,
+ target_to_host_bitmask(arg,
+ fcntl_flags_tbl)));
break;
#ifdef F_GETOWN_EX
case TARGET_F_GETOWN_EX:
- ret = get_errno(fcntl(fd, host_cmd, &fox));
+ ret = get_errno(safe_fcntl(fd, host_cmd, &fox));
if (ret >= 0) {
if (!lock_user_struct(VERIFY_WRITE, target_fox, arg, 0))
return -TARGET_EFAULT;
fox.type = tswap32(target_fox->type);
fox.pid = tswap32(target_fox->pid);
unlock_user_struct(target_fox, arg, 0);
- ret = get_errno(fcntl(fd, host_cmd, &fox));
+ ret = get_errno(safe_fcntl(fd, host_cmd, &fox));
break;
#endif
case TARGET_F_GETSIG:
case TARGET_F_SETLEASE:
case TARGET_F_GETLEASE:
- ret = get_errno(fcntl(fd, host_cmd, arg));
+ case TARGET_F_SETPIPE_SZ:
+ case TARGET_F_GETPIPE_SZ:
+ ret = get_errno(safe_fcntl(fd, host_cmd, arg));
break;
default:
- ret = get_errno(fcntl(fd, cmd, arg));
+ ret = get_errno(safe_fcntl(fd, cmd, arg));
break;
}
return ret;
#endif /* USE_UID16 */
+/* We must do direct syscalls for setting UID/GID, because we want to
+ * implement the Linux system call semantics of "change only for this thread",
+ * not the libc/POSIX semantics of "change for all threads in process".
+ * (See http://ewontfix.com/17/ for more details.)
+ * We use the 32-bit version of the syscalls if present; if it is not
+ * then either the host architecture supports 32-bit UIDs natively with
+ * the standard syscall, or the 16-bit UID is the best we can do.
+ */
+#ifdef __NR_setuid32
+#define __NR_sys_setuid __NR_setuid32
+#else
+#define __NR_sys_setuid __NR_setuid
+#endif
+#ifdef __NR_setgid32
+#define __NR_sys_setgid __NR_setgid32
+#else
+#define __NR_sys_setgid __NR_setgid
+#endif
+#ifdef __NR_setresuid32
+#define __NR_sys_setresuid __NR_setresuid32
+#else
+#define __NR_sys_setresuid __NR_setresuid
+#endif
+#ifdef __NR_setresgid32
+#define __NR_sys_setresgid __NR_setresgid32
+#else
+#define __NR_sys_setresgid __NR_setresgid
+#endif
+
+_syscall1(int, sys_setuid, uid_t, uid)
+_syscall1(int, sys_setgid, gid_t, gid)
+_syscall3(int, sys_setresuid, uid_t, ruid, uid_t, euid, uid_t, suid)
+_syscall3(int, sys_setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid)
+
void syscall_init(void)
{
IOCTLEntry *ie;
if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1))
return -TARGET_EFAULT;
- host_ts->tv_sec = tswapal(target_ts->tv_sec);
- host_ts->tv_nsec = tswapal(target_ts->tv_nsec);
+ __get_user(host_ts->tv_sec, &target_ts->tv_sec);
+ __get_user(host_ts->tv_nsec, &target_ts->tv_nsec);
unlock_user_struct(target_ts, target_addr, 0);
return 0;
}
if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0))
return -TARGET_EFAULT;
- target_ts->tv_sec = tswapal(host_ts->tv_sec);
- target_ts->tv_nsec = tswapal(host_ts->tv_nsec);
+ __put_user(host_ts->tv_sec, &target_ts->tv_sec);
+ __put_user(host_ts->tv_nsec, &target_ts->tv_nsec);
unlock_user_struct(target_ts, target_addr, 1);
return 0;
}
} else {
pts = NULL;
}
- return get_errno(sys_futex(g2h(uaddr), op, tswap32(val),
+ return get_errno(safe_futex(g2h(uaddr), op, tswap32(val),
pts, NULL, val3));
case FUTEX_WAKE:
- return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
+ return get_errno(safe_futex(g2h(uaddr), op, val, NULL, NULL, 0));
case FUTEX_FD:
- return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
+ return get_errno(safe_futex(g2h(uaddr), op, val, NULL, NULL, 0));
case FUTEX_REQUEUE:
case FUTEX_CMP_REQUEUE:
case FUTEX_WAKE_OP:
to satisfy the compiler. We do not need to tswap TIMEOUT
since it's not compared to guest memory. */
pts = (struct timespec *)(uintptr_t) timeout;
- return get_errno(sys_futex(g2h(uaddr), op, val, pts,
- g2h(uaddr2),
- (base_op == FUTEX_CMP_REQUEUE
- ? tswap32(val3)
- : val3)));
+ return get_errno(safe_futex(g2h(uaddr), op, val, pts,
+ g2h(uaddr2),
+ (base_op == FUTEX_CMP_REQUEUE
+ ? tswap32(val3)
+ : val3)));
default:
return -TARGET_ENOSYS;
}
#ifdef DEBUG
gemu_log("syscall %d", num);
#endif
+ trace_guest_user_syscall(cpu, num, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8);
if(do_strace)
print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
However in threaded applictions it is used for thread termination,
and _exit_group is used for application termination.
Do thread termination if we have more then one thread. */
- /* FIXME: This probably breaks if a signal arrives. We should probably
- be disabling signals. */
+
+ if (block_signals()) {
+ ret = -TARGET_ERESTARTSYS;
+ break;
+ }
+
if (CPU_NEXT(first_cpu)) {
TaskState *ts;
if (!(p = lock_user_string(arg1)))
goto execve_efault;
- ret = get_errno(execve(p, argp, envp));
+ /* Although execve() is not an interruptible syscall it is
+ * a special case where we must use the safe_syscall wrapper:
+ * if we allow a signal to happen before we make the host
+ * syscall then we will 'lose' it, because at the point of
+ * execve the process leaves QEMU's control. So we use the
+ * safe syscall wrapper to ensure that we either take the
+ * signal as a guest signal, or else it does not happen
+ * before the execve completes and makes it the other
+ * program's problem.
+ */
+ ret = get_errno(safe_execve(p, argp, envp));
unlock_user(p, arg1, 0);
goto execve_end;
#endif
#ifdef TARGET_NR_pause /* not on alpha */
case TARGET_NR_pause:
- ret = get_errno(pause());
+ if (!block_signals()) {
+ sigsuspend(&((TaskState *)cpu->opaque)->signal_mask);
+ }
+ ret = -TARGET_EINTR;
break;
#endif
#ifdef TARGET_NR_utime
ret = 0;
break;
case TARGET_NR_kill:
- ret = get_errno(kill(arg1, target_to_host_signal(arg2)));
+ ret = get_errno(safe_kill(arg1, target_to_host_signal(arg2)));
break;
#ifdef TARGET_NR_rename
case TARGET_NR_rename:
{
sigset_t cur_set;
abi_ulong target_set;
- do_sigprocmask(0, NULL, &cur_set);
- host_to_target_old_sigset(&target_set, &cur_set);
- ret = target_set;
+ ret = do_sigprocmask(0, NULL, &cur_set);
+ if (!ret) {
+ host_to_target_old_sigset(&target_set, &cur_set);
+ ret = target_set;
+ }
}
break;
#endif
{
sigset_t set, oset, cur_set;
abi_ulong target_set = arg1;
- do_sigprocmask(0, NULL, &cur_set);
+ /* We only have one word of the new mask so we must read
+ * the rest of it with do_sigprocmask() and OR in this word.
+ * We are guaranteed that a do_sigprocmask() that only queries
+ * the signal mask will not fail.
+ */
+ ret = do_sigprocmask(0, NULL, &cur_set);
+ assert(!ret);
target_to_host_old_sigset(&set, &target_set);
sigorset(&set, &set, &cur_set);
- do_sigprocmask(SIG_SETMASK, &set, &oset);
- host_to_target_old_sigset(&target_set, &oset);
- ret = target_set;
+ ret = do_sigprocmask(SIG_SETMASK, &set, &oset);
+ if (!ret) {
+ host_to_target_old_sigset(&target_set, &oset);
+ ret = target_set;
+ }
}
break;
#endif
mask = arg2;
target_to_host_old_sigset(&set, &mask);
- ret = get_errno(do_sigprocmask(how, &set, &oldset));
+ ret = do_sigprocmask(how, &set, &oldset);
if (!is_error(ret)) {
host_to_target_old_sigset(&mask, &oldset);
ret = mask;
how = 0;
set_ptr = NULL;
}
- ret = get_errno(do_sigprocmask(how, set_ptr, &oldset));
+ ret = do_sigprocmask(how, set_ptr, &oldset);
if (!is_error(ret) && arg3) {
if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
goto efault;
how = 0;
set_ptr = NULL;
}
- ret = get_errno(do_sigprocmask(how, set_ptr, &oldset));
+ ret = do_sigprocmask(how, set_ptr, &oldset);
if (!is_error(ret) && arg3) {
if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
goto efault;
#ifdef TARGET_NR_sigsuspend
case TARGET_NR_sigsuspend:
{
- sigset_t set;
+ TaskState *ts = cpu->opaque;
#if defined(TARGET_ALPHA)
abi_ulong mask = arg1;
- target_to_host_old_sigset(&set, &mask);
+ target_to_host_old_sigset(&ts->sigsuspend_mask, &mask);
#else
if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
goto efault;
- target_to_host_old_sigset(&set, p);
+ target_to_host_old_sigset(&ts->sigsuspend_mask, p);
unlock_user(p, arg1, 0);
#endif
- ret = get_errno(sigsuspend(&set));
+ ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask,
+ SIGSET_T_SIZE));
+ if (ret != -TARGET_ERESTARTSYS) {
+ ts->in_sigsuspend = 1;
+ }
}
break;
#endif
case TARGET_NR_rt_sigsuspend:
{
- sigset_t set;
+ TaskState *ts = cpu->opaque;
if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
goto efault;
- target_to_host_sigset(&set, p);
+ target_to_host_sigset(&ts->sigsuspend_mask, p);
unlock_user(p, arg1, 0);
- ret = get_errno(sigsuspend(&set));
+ ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask,
+ SIGSET_T_SIZE));
+ if (ret != -TARGET_ERESTARTSYS) {
+ ts->in_sigsuspend = 1;
+ }
}
break;
case TARGET_NR_rt_sigtimedwait:
} else {
puts = NULL;
}
- ret = get_errno(sigtimedwait(&set, &uinfo, puts));
+ ret = get_errno(safe_rt_sigtimedwait(&set, &uinfo, puts,
+ SIGSET_T_SIZE));
if (!is_error(ret)) {
if (arg2) {
p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t),
case TARGET_NR_rt_sigqueueinfo:
{
siginfo_t uinfo;
- if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1)))
+
+ p = lock_user(VERIFY_READ, arg3, sizeof(target_siginfo_t), 1);
+ if (!p) {
goto efault;
+ }
target_to_host_siginfo(&uinfo, p);
unlock_user(p, arg1, 0);
ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
break;
#ifdef TARGET_NR_sigreturn
case TARGET_NR_sigreturn:
- ret = do_sigreturn(cpu_env);
+ if (block_signals()) {
+ ret = -TARGET_ERESTARTSYS;
+ } else {
+ ret = do_sigreturn(cpu_env);
+ }
break;
#endif
case TARGET_NR_rt_sigreturn:
- ret = do_rt_sigreturn(cpu_env);
+ if (block_signals()) {
+ ret = -TARGET_ERESTARTSYS;
+ } else {
+ ret = do_rt_sigreturn(cpu_env);
+ }
break;
case TARGET_NR_sethostname:
if (!(p = lock_user_string(arg1)))
/* Extract the two packed args for the sigset */
if (arg6) {
sig_ptr = &sig;
- sig.size = _NSIG / 8;
+ sig.size = SIGSET_T_SIZE;
arg7 = lock_user(VERIFY_READ, arg6, sizeof(*arg7) * 2, 1);
if (!arg7) {
sig_ptr = NULL;
}
- ret = get_errno(sys_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
- ts_ptr, sig_ptr));
+ ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
+ ts_ptr, sig_ptr));
if (!is_error(ret)) {
if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
#endif
#ifdef TARGET_NR_accept4
case TARGET_NR_accept4:
-#ifdef CONFIG_ACCEPT4
ret = do_accept4(arg1, arg2, arg3, arg4);
-#else
- goto unimplemented;
-#endif
break;
#endif
#ifdef TARGET_NR_bind
{
struct target_pollfd *target_pfd;
unsigned int nfds = arg2;
- int timeout = arg3;
struct pollfd *pfd;
unsigned int i;
}
}
+ switch (num) {
# ifdef TARGET_NR_ppoll
- if (num == TARGET_NR_ppoll) {
+ case TARGET_NR_ppoll:
+ {
struct timespec _timeout_ts, *timeout_ts = &_timeout_ts;
target_sigset_t *target_set;
sigset_t _set, *set = &_set;
set = NULL;
}
- ret = get_errno(sys_ppoll(pfd, nfds, timeout_ts, set, _NSIG/8));
+ ret = get_errno(safe_ppoll(pfd, nfds, timeout_ts,
+ set, SIGSET_T_SIZE));
if (!is_error(ret) && arg3) {
host_to_target_timespec(arg3, timeout_ts);
if (arg4) {
unlock_user(target_set, arg4, 0);
}
- } else
+ break;
+ }
+# endif
+# ifdef TARGET_NR_poll
+ case TARGET_NR_poll:
+ {
+ struct timespec ts, *pts;
+
+ if (arg3 >= 0) {
+ /* Convert ms to secs, ns */
+ ts.tv_sec = arg3 / 1000;
+ ts.tv_nsec = (arg3 % 1000) * 1000000LL;
+ pts = &ts;
+ } else {
+ /* -ve poll() timeout means "infinite" */
+ pts = NULL;
+ }
+ ret = get_errno(safe_ppoll(pfd, nfds, pts, NULL, 0));
+ break;
+ }
# endif
- ret = get_errno(poll(pfd, nfds, timeout));
+ default:
+ g_assert_not_reached();
+ }
if (!is_error(ret)) {
for(i = 0; i < nfds; i++) {
case TARGET_NR_flock:
/* NOTE: the flock constant seems to be the same for every
Linux platform */
- ret = get_errno(flock(arg1, arg2));
+ ret = get_errno(safe_flock(arg1, arg2));
break;
case TARGET_NR_readv:
{
struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
if (vec != NULL) {
- ret = get_errno(readv(arg1, vec, arg3));
+ ret = get_errno(safe_readv(arg1, vec, arg3));
unlock_iovec(vec, arg2, arg3, 1);
} else {
ret = -host_to_target_errno(errno);
{
struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
if (vec != NULL) {
- ret = get_errno(writev(arg1, vec, arg3));
+ ret = get_errno(safe_writev(arg1, vec, arg3));
unlock_iovec(vec, arg2, arg3, 0);
} else {
ret = -host_to_target_errno(errno);
{
struct timespec req, rem;
target_to_host_timespec(&req, arg1);
- ret = get_errno(nanosleep(&req, &rem));
+ ret = get_errno(safe_nanosleep(&req, &rem));
if (is_error(ret) && arg2) {
host_to_target_timespec(arg2, &rem);
}
#endif
#ifdef TARGET_NR_setresuid
case TARGET_NR_setresuid:
- ret = get_errno(setresuid(low2highuid(arg1),
- low2highuid(arg2),
- low2highuid(arg3)));
+ ret = get_errno(sys_setresuid(low2highuid(arg1),
+ low2highuid(arg2),
+ low2highuid(arg3)));
break;
#endif
#ifdef TARGET_NR_getresuid
#endif
#ifdef TARGET_NR_getresgid
case TARGET_NR_setresgid:
- ret = get_errno(setresgid(low2highgid(arg1),
- low2highgid(arg2),
- low2highgid(arg3)));
+ ret = get_errno(sys_setresgid(low2highgid(arg1),
+ low2highgid(arg2),
+ low2highgid(arg3)));
break;
#endif
#ifdef TARGET_NR_getresgid
break;
#endif
case TARGET_NR_setuid:
- ret = get_errno(setuid(low2highuid(arg1)));
+ ret = get_errno(sys_setuid(low2highuid(arg1)));
break;
case TARGET_NR_setgid:
- ret = get_errno(setgid(low2highgid(arg1)));
+ ret = get_errno(sys_setgid(low2highgid(arg1)));
break;
case TARGET_NR_setfsuid:
ret = get_errno(setfsuid(arg1));
}
mask = arg2;
target_to_host_old_sigset(&set, &mask);
- do_sigprocmask(how, &set, &oldset);
- host_to_target_old_sigset(&mask, &oldset);
- ret = mask;
+ ret = do_sigprocmask(how, &set, &oldset);
+ if (!ret) {
+ host_to_target_old_sigset(&mask, &oldset);
+ ret = mask;
+ }
}
break;
#endif
#endif
#ifdef TARGET_NR_setresuid32
case TARGET_NR_setresuid32:
- ret = get_errno(setresuid(arg1, arg2, arg3));
+ ret = get_errno(sys_setresuid(arg1, arg2, arg3));
break;
#endif
#ifdef TARGET_NR_getresuid32
#endif
#ifdef TARGET_NR_setresgid32
case TARGET_NR_setresgid32:
- ret = get_errno(setresgid(arg1, arg2, arg3));
+ ret = get_errno(sys_setresgid(arg1, arg2, arg3));
break;
#endif
#ifdef TARGET_NR_getresgid32
#endif
#ifdef TARGET_NR_setuid32
case TARGET_NR_setuid32:
- ret = get_errno(setuid(arg1));
+ ret = get_errno(sys_setuid(arg1));
break;
#endif
#ifdef TARGET_NR_setgid32
case TARGET_NR_setgid32:
- ret = get_errno(setgid(arg1));
+ ret = get_errno(sys_setgid(arg1));
break;
#endif
#ifdef TARGET_NR_setfsuid32
#endif
#ifdef TARGET_NR_arm_fadvise64_64
case TARGET_NR_arm_fadvise64_64:
- {
- /*
- * arm_fadvise64_64 looks like fadvise64_64 but
- * with different argument order
- */
- abi_long temp;
- temp = arg3;
- arg3 = arg4;
- arg4 = temp;
- }
+ /* arm_fadvise64_64 looks like fadvise64_64 but
+ * with different argument order: fd, advice, offset, len
+ * rather than the usual fd, offset, len, advice.
+ * Note that offset and len are both 64-bit so appear as
+ * pairs of 32-bit registers.
+ */
+ ret = posix_fadvise(arg1, target_offset64(arg3, arg4),
+ target_offset64(arg5, arg6), arg2);
+ ret = -host_to_target_errno(ret);
+ break;
#endif
-#if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64) || defined(TARGET_NR_fadvise64)
+
+#if TARGET_ABI_BITS == 32
+
+#ifdef TARGET_NR_fadvise64_64
+ case TARGET_NR_fadvise64_64:
+ /* 6 args: fd, offset (high, low), len (high, low), advice */
+ if (regpairs_aligned(cpu_env)) {
+ /* offset is in (3,4), len in (5,6) and advice in 7 */
+ arg2 = arg3;
+ arg3 = arg4;
+ arg4 = arg5;
+ arg5 = arg6;
+ arg6 = arg7;
+ }
+ ret = -host_to_target_errno(posix_fadvise(arg1,
+ target_offset64(arg2, arg3),
+ target_offset64(arg4, arg5),
+ arg6));
+ break;
+#endif
+
+#ifdef TARGET_NR_fadvise64
+ case TARGET_NR_fadvise64:
+ /* 5 args: fd, offset (high, low), len, advice */
+ if (regpairs_aligned(cpu_env)) {
+ /* offset is in (3,4), len in 5 and advice in 6 */
+ arg2 = arg3;
+ arg3 = arg4;
+ arg4 = arg5;
+ arg5 = arg6;
+ }
+ ret = -host_to_target_errno(posix_fadvise(arg1,
+ target_offset64(arg2, arg3),
+ arg4, arg5));
+ break;
+#endif
+
+#else /* not a 32-bit ABI */
+#if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_fadvise64)
#ifdef TARGET_NR_fadvise64_64
case TARGET_NR_fadvise64_64:
#endif
default: break;
}
#endif
- ret = -posix_fadvise(arg1, arg2, arg3, arg4);
- break;
+ ret = -host_to_target_errno(posix_fadvise(arg1, arg2, arg3, arg4));
+ break;
#endif
+#endif /* end of 64-bit ABI fadvise handling */
+
#ifdef TARGET_NR_madvise
case TARGET_NR_madvise:
/* A straight passthrough may not be safe because qemu sometimes
{
int cmd;
struct flock64 fl;
- struct target_flock64 *target_fl;
+ from_flock64_fn *copyfrom = copy_from_user_flock64;
+ to_flock64_fn *copyto = copy_to_user_flock64;
+
#ifdef TARGET_ARM
- struct target_eabi_flock64 *target_efl;
+ if (((CPUARMState *)cpu_env)->eabi) {
+ copyfrom = copy_from_user_eabi_flock64;
+ copyto = copy_to_user_eabi_flock64;
+ }
#endif
cmd = target_to_host_fcntl_cmd(arg2);
switch(arg2) {
case TARGET_F_GETLK64:
-#ifdef TARGET_ARM
- if (((CPUARMState *)cpu_env)->eabi) {
- if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
- goto efault;
- fl.l_type = tswap16(target_efl->l_type);
- fl.l_whence = tswap16(target_efl->l_whence);
- fl.l_start = tswap64(target_efl->l_start);
- fl.l_len = tswap64(target_efl->l_len);
- fl.l_pid = tswap32(target_efl->l_pid);
- unlock_user_struct(target_efl, arg3, 0);
- } else
-#endif
- {
- if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
- goto efault;
- fl.l_type = tswap16(target_fl->l_type);
- fl.l_whence = tswap16(target_fl->l_whence);
- fl.l_start = tswap64(target_fl->l_start);
- fl.l_len = tswap64(target_fl->l_len);
- fl.l_pid = tswap32(target_fl->l_pid);
- unlock_user_struct(target_fl, arg3, 0);
+ ret = copyfrom(&fl, arg3);
+ if (ret) {
+ break;
}
ret = get_errno(fcntl(arg1, cmd, &fl));
- if (ret == 0) {
-#ifdef TARGET_ARM
- if (((CPUARMState *)cpu_env)->eabi) {
- if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0))
- goto efault;
- target_efl->l_type = tswap16(fl.l_type);
- target_efl->l_whence = tswap16(fl.l_whence);
- target_efl->l_start = tswap64(fl.l_start);
- target_efl->l_len = tswap64(fl.l_len);
- target_efl->l_pid = tswap32(fl.l_pid);
- unlock_user_struct(target_efl, arg3, 1);
- } else
-#endif
- {
- if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0))
- goto efault;
- target_fl->l_type = tswap16(fl.l_type);
- target_fl->l_whence = tswap16(fl.l_whence);
- target_fl->l_start = tswap64(fl.l_start);
- target_fl->l_len = tswap64(fl.l_len);
- target_fl->l_pid = tswap32(fl.l_pid);
- unlock_user_struct(target_fl, arg3, 1);
- }
- }
+ if (ret == 0) {
+ ret = copyto(arg3, &fl);
+ }
break;
case TARGET_F_SETLK64:
case TARGET_F_SETLKW64:
-#ifdef TARGET_ARM
- if (((CPUARMState *)cpu_env)->eabi) {
- if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
- goto efault;
- fl.l_type = tswap16(target_efl->l_type);
- fl.l_whence = tswap16(target_efl->l_whence);
- fl.l_start = tswap64(target_efl->l_start);
- fl.l_len = tswap64(target_efl->l_len);
- fl.l_pid = tswap32(target_efl->l_pid);
- unlock_user_struct(target_efl, arg3, 0);
- } else
-#endif
- {
- if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
- goto efault;
- fl.l_type = tswap16(target_fl->l_type);
- fl.l_whence = tswap16(target_fl->l_whence);
- fl.l_start = tswap64(target_fl->l_start);
- fl.l_len = tswap64(target_fl->l_len);
- fl.l_pid = tswap32(target_fl->l_pid);
- unlock_user_struct(target_fl, arg3, 0);
+ ret = copyfrom(&fl, arg3);
+ if (ret) {
+ break;
}
- ret = get_errno(fcntl(arg1, cmd, &fl));
+ ret = get_errno(safe_fcntl(arg1, cmd, &fl));
break;
default:
ret = do_fcntl(arg1, arg2, arg3);
{
struct timespec ts;
target_to_host_timespec(&ts, arg3);
- ret = get_errno(clock_nanosleep(arg1, arg2, &ts, arg4 ? &ts : NULL));
+ ret = get_errno(safe_clock_nanosleep(arg1, arg2,
+ &ts, arg4 ? &ts : NULL));
if (arg4)
host_to_target_timespec(arg4, &ts);
#if defined(TARGET_PPC)
/* clock_nanosleep is odd in that it returns positive errno values.
* On PPC, CR0 bit 3 should be set in such a situation. */
- if (ret) {
+ if (ret && ret != -TARGET_ERESTARTSYS) {
((CPUPPCState *)cpu_env)->crf[0] |= 1;
}
#endif
break;
#endif
-#if defined(TARGET_NR_tkill) && defined(__NR_tkill)
case TARGET_NR_tkill:
- ret = get_errno(sys_tkill((int)arg1, target_to_host_signal(arg2)));
+ ret = get_errno(safe_tkill((int)arg1, target_to_host_signal(arg2)));
break;
-#endif
-#if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
case TARGET_NR_tgkill:
- ret = get_errno(sys_tgkill((int)arg1, (int)arg2,
+ ret = get_errno(safe_tgkill((int)arg1, (int)arg2,
target_to_host_signal(arg3)));
- break;
-#endif
+ break;
#ifdef TARGET_NR_set_robust_list
case TARGET_NR_set_robust_list:
p = lock_user (VERIFY_READ, arg2, arg3, 1);
if (arg5 != 0) {
target_to_host_timespec(&ts, arg5);
- ret = get_errno(mq_timedsend(arg1, p, arg3, arg4, &ts));
+ ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, &ts));
host_to_target_timespec(arg5, &ts);
+ } else {
+ ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, NULL));
}
- else
- ret = get_errno(mq_send(arg1, p, arg3, arg4));
unlock_user (p, arg2, arg3);
}
break;
p = lock_user (VERIFY_READ, arg2, arg3, 1);
if (arg5 != 0) {
target_to_host_timespec(&ts, arg5);
- ret = get_errno(mq_timedreceive(arg1, p, arg3, &prio, &ts));
+ ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
+ &prio, &ts));
host_to_target_timespec(arg5, &ts);
+ } else {
+ ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
+ &prio, NULL));
}
- else
- ret = get_errno(mq_receive(arg1, p, arg3, &prio));
unlock_user (p, arg2, arg3);
if (arg4 != 0)
put_user_u32(prio, arg4);
}
#endif
-#if defined(TARGET_NR_epoll_pwait) && defined(CONFIG_EPOLL_PWAIT)
-#define IMPLEMENT_EPOLL_PWAIT
-#endif
-#if defined(TARGET_NR_epoll_wait) || defined(IMPLEMENT_EPOLL_PWAIT)
+#if defined(TARGET_NR_epoll_wait) || defined(TARGET_NR_epoll_pwait)
#if defined(TARGET_NR_epoll_wait)
case TARGET_NR_epoll_wait:
#endif
-#if defined(IMPLEMENT_EPOLL_PWAIT)
+#if defined(TARGET_NR_epoll_pwait)
case TARGET_NR_epoll_pwait:
#endif
{
ep = alloca(maxevents * sizeof(struct epoll_event));
switch (num) {
-#if defined(IMPLEMENT_EPOLL_PWAIT)
+#if defined(TARGET_NR_epoll_pwait)
case TARGET_NR_epoll_pwait:
{
target_sigset_t *target_set;
set = NULL;
}
- ret = get_errno(epoll_pwait(epfd, ep, maxevents, timeout, set));
+ ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout,
+ set, SIGSET_T_SIZE));
break;
}
#endif
#if defined(TARGET_NR_epoll_wait)
case TARGET_NR_epoll_wait:
- ret = get_errno(epoll_wait(epfd, ep, maxevents, timeout));
+ ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout,
+ NULL, 0));
break;
#endif
default:
#endif
if(do_strace)
print_syscall_ret(num, ret);
+ trace_guest_user_syscall_ret(cpu, num, ret);
return ret;
efault:
ret = -TARGET_EFAULT;
projects / mirror_qemu.git / blobdiff