int fstat(int fd, struct file_stat *stat)
{
return usys_fstat(fd, stat);
}
static void do_syscall_sw( uuprocess_t *u, struct trap_state *st)
{
#if HAVE_UNIX
int callno = st->eax;
/*
unsigned int mina = 0, maxa = 0;
{
extern struct real_descriptor ldt[];
struct real_descriptor dsd = ldt[ st->ds/8 ];
mina = dsd.base_low | (dsd.base_med << 16) | (dsd.base_high << 24);
maxa = (dsd.limit_low | dsd.limit_high << 16);
if( dsd.granularity & SZ_G)
maxa *= PAGE_SIZE;
maxa += mina;
}
*/
//phantom_thread_t *t = GET_CURRENT_THREAD();
//uuprocess_t *u = t->u;
/*
tid_t tid = get_current_tid();
pid_t pid;
assert( !t_get_pid( tid, &pid ));
uuprocess_t *u = proc_by_pid(pid);
*/
assert( u != 0 );
unsigned int mina = (int)u->mem_start, maxa = (int)u->mem_end;
// trap state is good for interrupt.
// call gate does not push eflags
int user_esp = st->eflags;
#ifndef ARCH_ia32
# warning machdep ia32 arg pass convention
#endif
// list of user syscsall arguments
int *uarg = adjustin( user_esp, st );
uarg++; // syscall func return addr
//SHOW_FLOW( 10, "Syscall pid %2d tid %2d, our esp %p, user esp %p, t kstack %p", u->pid, t->tid, &st, user_esp, t->kstack_top );
SHOW_FLOW( 8, "Syscall %d args %x, %x, %x", callno, uarg[0], uarg[1],uarg[2] );
int ret = 0;
int err = 0;
switch(callno)
{
case SYS__exit:
// TODO housekeeping?
SHOW_FLOW( 2, "exit %d", uarg[0] );
hal_exit_kernel_thread();
err = ENOSYS;
break;
case SYS_ssyslog:
syslog( uarg[0], "%s", (const char *)adjustin( uarg[1], st ) );
SHOW_FLOW( 2, "syslog %d %s", uarg[0], (const char *)adjustin( uarg[1], st ) );
//SHOW_ERROR0( 0, "syslog not impl" );
break;
case SYS_sleepmsec:
//SHOW_FLOW( 2, "sleepmsec %d", uarg[0] );
hal_sleep_msec(uarg[0]);
break;
case SYS_getpagesize: ret = PAGE_SIZE; break;
case SYS_personality:
if( ((unsigned) uarg[0]) == 0xffffffff)
{
ret = 0; // Say we're Linux... well...to some extent.
break;
}
err = EINVAL;
break;
case SYS_uname:
err = copyout(uarg[0], mina, maxa, &phantom_uname, sizeof(phantom_uname) );
if( err ) ret = -1;
break;
case SYS_getuid: ret = u->uid; break;
case SYS_getuid32: ret = u->uid;; break;
case SYS_getegid: ret = u->egid; break;
case SYS_getegid32: ret = u->egid; break;
case SYS_geteuid: ret = u->euid; break;
case SYS_geteuid32: ret = u->euid; break;
case SYS_getgid: ret = u->gid; break;
case SYS_getgid32: ret = u->gid; break;
case SYS_gettid: ret = get_current_tid(); break;
case SYS_getpid: ret = u->pid; break;
case SYS_getpgrp: ret = u->pgrp_pid; break;
case SYS_getppid: ret = u->ppid; break;
case SYS_getpgid:
goto unimpl;
case SYS_time:
{
time_t t = time(0);
AARG(time_t *, tp, 0, sizeof(time_t));
*tp = t;
ret = t;
break;
}
case SYS_nanosleep:
// todo check for POSIX compliance, make it interruptible by signals
//int nanosleep(const struct timespec *, struct timespec *);
{
goto unimpl;
//AARG(struct timespec *, req_time, 0, sizeof(struct timespec));
//AARG(struct timespec *, rest_time, 1, sizeof(struct timespec));
//ret = usys_nanosleep( &err, u, req_time, rest_time );
//break;
}
case SYS_sync:
case SYS_sysinfo:
case SYS_sysfs:
case SYS_klogctl:
case SYS_shutdown:
case SYS_reboot:
case SYS_getitimer:
case SYS_setitimer:
case SYS_gettimeofday:
case SYS_setuid:
case SYS_setuid32: CHECK_CAP(CAP_SETUID); u->euid = uarg[0]; break;
case SYS_setgid:
case SYS_setgid32: CHECK_CAP(CAP_SETGID); u->egid = uarg[0]; break;
case SYS_setgroups:
case SYS_setgroups32:
goto unimpl;
case SYS_setpgid:
case SYS_setregid:
case SYS_setregid32:
case SYS_setresgid:
case SYS_setresgid32:
case SYS_setresuid:
case SYS_setresuid32:
case SYS_setreuid:
case SYS_setreuid32:
goto unimpl;
case SYS_open: ret = usys_open(&err, u, adjustin( uarg[0], st ), uarg[1], uarg[2] ); break;
case SYS_close: ret = usys_close(&err, u, uarg[0] ); break;
case SYS_read:
{
int count = uarg[2];
void *addr = adjustin( uarg[1], st );
CHECKA(addr,count);
ret = usys_read(&err, u, uarg[0], addr, count );
break;
}
case SYS_write:
{
int count = uarg[2];
void *addr = adjustin( uarg[1], st );
CHECKA(addr,count);
ret = usys_write(&err, u, uarg[0], addr, count );
break;
}
case SYS_lseek: ret = usys_lseek(&err, u, uarg[0], uarg[1], uarg[2] ); break;
case SYS_creat: ret = usys_creat(&err, u, adjustin( uarg[0], st ), uarg[1] ); break;
case SYS_chdir:
{
AARG(const char *, path, 0, 0);
ret = usys_chdir(&err, u, path );
break;
}
case SYS_pipe:
{
AARG(int *, fds, 0, sizeof(int) * 2);
ret = usys_pipe( &err, u, fds );
break;
}
case SYS_rmdir:
case SYS_unlink:
{
AARG(const char *, name, 0, 1);
ret = usys_rm( &err, u, name );
break;
}
case SYS_dup:
ret = usys_dup( &err, u, uarg[0] );
break;
case SYS_dup2:
ret = usys_dup2( &err, u, uarg[0], uarg[1] );
break;
case SYS_symlink:
{
AARG(const char *, n1, 0, 1);
AARG(const char *, n2, 1, 1);
ret = usys_symlink( &err, u, n1, n2 );
break;
}
case SYS_getcwd:
{
AARG(char *, buf, 0, uarg[1]);
ret = usys_getcwd( &err, u, buf, uarg[1] );
break;
}
case SYS_mkdir:
{
AARG(const char *, path, 0, 2);
ret = usys_mkdir( &err, u, path );
break;
}
case SYS_link:
case SYS__llseek:
case SYS_chroot:
case SYS_lstat64:
case SYS_mknod:
goto unimpl;
case SYS_mount:
{
const char *source = adjustin( uarg[0], st );
CHECKA(source,0);
const char *target = adjustin( uarg[1], st );
CHECKA(target,0);
const char *fstype = adjustin( uarg[2], st );
CHECKA(target,0);
const void *data = adjustin( uarg[4], st );
CHECKA(data,0);
ret = usys_mount(&err, u, source, target, fstype, uarg[3], data );
break;
}
case SYS_umount:
{
const char *target = adjustin( uarg[0], st );
CHECKA(target,0);
ret = usys_umount(&err, u, target, 0 );
break;
}
/*
case SYS_umount2:
{
const char *target = adjustin( uarg[0], st );
CHECKA(target);
ret = usys_umount(&err, u, target, uarg[1] );
break;
}
*/
case SYS_truncate:
{
AARG(const char *, path, 0, 0);
ret = usys_truncate(&err, u, path, uarg[1] );
break;
}
case SYS_ftruncate:
{
ret = usys_ftruncate(&err, u, uarg[0], uarg[1] );
break;
}
case SYS_truncate64:
case SYS_ftruncate64:
goto unimpl;
case SYS_fchdir:
ret = usys_fchdir( &err, u, uarg[0] );
break;
case SYS_readdir:
{
AARG(struct dirent *, ent, 1, sizeof(struct dirent));
ret = usys_readdir( &err, u, uarg[0], ent );
break;
}
case SYS_fchmod:
ret = usys_fchmod( &err, u, uarg[0], uarg[1] );
break;
case SYS_fchown:
case SYS_fchown32:
ret = usys_fchown( &err, u, uarg[0], uarg[1], uarg[2] );
break;
case SYS_fcntl:
{
//AARG(void *, str, 2, sizeof(int)); // FIXME size of arg?
ret = usys_fcntl( &err, u, uarg[0], uarg[1], uarg[0] );
}
break;
case SYS_fcntl64:
case SYS_fdatasync:
case SYS_flock:
case SYS_fstat64:
case SYS_fstatfs:
case SYS_fsync:
case SYS_utime:
case SYS_chmod:
case SYS_chown:
case SYS_chown32:
case SYS_access:
case SYS_lchown:
case SYS_lchown32:
case SYS_pread:
case SYS_pwrite:
goto unimpl;
case SYS_readv:
{
int fd = uarg[0];
int iovcnt = uarg[2];
AARG(struct iovec *, list, 1, sizeof(struct iovec) * iovcnt);
unsigned int onerc;
int lp;
for( lp = 0; lp < iovcnt; lp++ )
{
void *addr = adjustin( list[lp].iov_base, st );
CHECKA(addr,list[lp].iov_len);
onerc = usys_read(&err, u, fd, addr, list[lp].iov_len );
/*
if( onerc < 0 )
{
ret = -1;
goto err_ret;
}
*/
ret += onerc;
if( onerc < list[lp].iov_len )
break;
}
break;
}
case SYS_writev:
{
int fd = uarg[0];
int iovcnt = uarg[2];
AARG(struct iovec *, list, 1, sizeof(struct iovec) * iovcnt);
unsigned int onerc;
int lp;
for( lp = 0; lp < iovcnt; lp++ )
{
void *addr = adjustin( list[lp].iov_base, st );
CHECKA(addr,list[lp].iov_len);
onerc = usys_write(&err, u, fd, addr, list[lp].iov_len );
/*
if( onerc < 0 )
{
ret = -1;
goto err_ret;
}
*/
ret += onerc;
if( onerc < list[lp].iov_len )
break;
}
break;
}
case SYS_readlink:
goto unimpl;
case SYS_gethostname:
{
int len = uarg[1];
char *target = adjustin( uarg[0], st );
CHECKA(target,len);
ret = usys_gethostname(&err, u, target, len );
break;
}
case SYS_sethostname:
{
int len = uarg[1];
const char *target = adjustin( uarg[0], st );
CHECKA(target,len);
ret = usys_sethostname(&err, u, target, len );
break;
}
case SYS_socket:
ret = usys_socket( &err, u, uarg[0], uarg[1], uarg[2] );
break;
case SYS_setsockopt:
{
socklen_t optlen = uarg[4];
AARG(const void *, optval, 3, optlen);
ret = usys_setsockopt( &err, u, uarg[0], uarg[1], uarg[2], optval, optlen);
break;
}
case SYS_getsockopt:
{
AARG(socklen_t *, optlen, 4, sizeof(socklen_t));
AARG(void *, optval, 3, *optlen);
ret = usys_getsockopt( &err, u, uarg[0], uarg[1], uarg[2], optval, optlen);
break;
}
case SYS_getpeername:
{
AARG(socklen_t *, namelen, 2, sizeof(socklen_t));
AARG(struct sockaddr *, name, 1, *namelen);
ret = usys_getpeername( &err, u, uarg[0], name, namelen);
break;
}
case SYS_getsockname:
{
AARG(socklen_t *, namelen, 2, sizeof(socklen_t));
AARG(struct sockaddr *, name, 1, *namelen);
ret = usys_getsockname( &err, u, uarg[0], name, namelen);
break;
}
case SYS_bind:
{
AARG(const struct sockaddr *, addr, 1, sizeof(struct sockaddr));
ret = usys_bind( &err, u, uarg[0], addr, uarg[2] );
break;
}
case SYS_listen:
ret = usys_listen( &err, u, uarg[0], uarg[1] );
break;
case SYS_accept:
{
AARG( socklen_t *, len, 2, sizeof(socklen_t));
AARG( struct sockaddr *, acc_addr, 1, *len );
ret = usys_accept( &err, u, uarg[0], acc_addr, len );
break;
}
case SYS_recv:
{
int len = uarg[2];
AARG( void *, buf, 0, len );
ret = usys_recv( &err, u, uarg[0], buf, len, uarg[3] );
break;
}
case SYS_recvmsg:
{
AARG( struct msghdr *, msg, 0, sizeof(struct msghdr) );
ret = usys_recvmsg( &err, u, uarg[0], msg, uarg[2] );
break;
}
case SYS_send:
{
int len = uarg[2];
AARG( const void *, buf, 0, len );
ret = usys_send( &err, u, uarg[0], buf, len, uarg[3] );
break;
}
case SYS_sendmsg:
{
AARG( const struct msghdr *, msg, 0, sizeof(struct msghdr) );
ret = usys_sendmsg( &err, u, uarg[0], msg, uarg[2] );
break;
}
case SYS_sendto:
{
socklen_t tolen = uarg[5];
AARG( const struct sockaddr *, to, 4, tolen );
int len = uarg[2];
AARG( const void *, buf, 0, len );
ret = usys_sendto( &err, u, uarg[0], buf, len, uarg[3], to, tolen );
break;
}
case SYS_recvfrom:
{
AARG( socklen_t *, fromlen, 5, sizeof(socklen_t) );
AARG( struct sockaddr *, from, 4, *fromlen );
int len = uarg[2];
AARG( void *, buf, 0, len );
ret = usys_recvfrom( &err, u, uarg[0], buf, len, uarg[3], from, fromlen );
break;
}
case SYS_connect:
// int connect(int socket, const struct sockaddr *address, socklen_t address_len);
{
int len = uarg[2];
AARG( struct sockaddr *, acc_addr, 1, len );
ret = usys_connect( &err, u, uarg[0], acc_addr, len );
break;
}
case SYS_socketpair:
{
AARG( int *, sv, 3, sizeof(int) * 2 );
ret = usys_socketpair( &err, u, uarg[0], uarg[1], uarg[2], sv );
break;
}
case SYS_sendfile:
case SYS_socketcall:
goto unimpl;
case SYS_nice:
{
// int nice = uarg[0];
// set thr prio
// break;
goto unimpl;
}
case SYS_brk:
goto unimpl;
/*{
ret = usys_sbrk( &err, u, uarg[0] );
break;
}*/
case SYS_fork:
case SYS_vfork:
goto unimpl;
case SYS_ioctl:
{
void *data = adjustin( uarg[2], st );
CHECKA(data,0);
ret = usys_ioctl( &err, u, uarg[0], uarg[1], data, uarg[3] );
break;
}
int statlink;
case SYS_lstat: statlink = 1; goto dostat;
case SYS_stat: statlink = 0; goto dostat;
dostat:
{
const char *path = adjustin( uarg[0], st );
CHECKA(path,0);
struct stat *data = adjustin( uarg[1], st );
CHECKA(data,sizeof(struct stat));
ret = usys_stat( &err, u, path, data, statlink );
break;
}
case SYS_fstat:
{
struct stat *data = adjustin( uarg[1], st );
CHECKA(data,sizeof(struct stat));
ret = usys_fstat( &err, u, uarg[0], data, 0 );
break;
}
case SYS_umask:
{
ret = u->umask;
u->umask = uarg[0];
break;
}
case SYS_kill:
{
ret = usys_kill( &err, u, uarg[0], uarg[1] );
break;
}
case SYS_waitpid:
{
AARG(int *, addr, 1, sizeof(int));
ret = usys_waitpid( &err, u, uarg[0], addr, uarg[2] );
break;
}
case SYS_wait:
{
AARG(int *, addr, 0, sizeof(int));
ret = usys_waitpid( &err, u, -1, addr, 0 );
break;
}
case SYS_clone:
goto unimpl;
case SYS_madvise:
case SYS_mincore:
case SYS_mlock:
case SYS_mlockall:
case SYS_mmap:
case SYS_mprotect:
case SYS_mremap:
case SYS_msync:
case SYS_munlock:
case SYS_munlockall:
case SYS_munmap:
goto unimpl;
// NewOS/BeOS/Haiku
case SYS_create_port:
{
// TODO check string length and final addr to be valid
AARG(const char *, name, 1, 0);
ret = port_create( uarg[0], name );
break;
}
case SYS_close_port:
ret = port_close( uarg[0] );
break;
case SYS_delete_port:
ret = port_delete( uarg[0] );
break;
case SYS_find_port:
{
// TODO check string length and final addr to be valid
AARG(const char *, name, 0, 0);
ret = port_find(name);
break;
}
case SYS_get_port_info:
{
AARG(struct port_info *, info, 1, sizeof(struct port_info));
ret = port_get_info( uarg[0], info);
}
case SYS_get_port_bufsize:
ret = port_buffer_size( uarg[0] );
break;
case SYS_get_port_bufsize_etc:
ret = port_buffer_size_etc( uarg[0], uarg[1], uarg[2] );
break;
case SYS_get_port_count:
ret = port_count( uarg[0] );
break;
case SYS_read_port:
{
AARG(int32_t *, msg_code, 1, sizeof(int32_t));
AARG(void *, msg_buffer, 2, uarg[3]);
ret = port_read( uarg[0],
msg_code,
msg_buffer,
uarg[3]);
break;
}
case SYS_write_port:
{
//AARG(int32_t *, msg_code, 1, sizeof(int32_t));
//AARG(int32_t, msg_code, 1, sizeof(int32_t));
AARG(void *, msg_buffer, 2, uarg[3]);
ret = port_write( uarg[0],
uarg[1],
msg_buffer,
uarg[3]);
break;
}
case SYS_read_port_etc:
case SYS_write_port_etc:
case SYS_set_port_owner:
case SYS_get_next_port_info:
goto unimpl;
case SYS_phantom_run:
{
// extern int phantom_run(const char *fname, const char **argv, const char **envp, int flags);
AARG(const char *, fname, 0, 1);
AARG(const char **, uav, 1, 4);
AARG(const char **, uep, 2, 4);
if( 0 == uarg[1] ) uav = 0;
if( 0 == uarg[2] ) uep = 0;
SHOW_FLOW( 2, "run %s flags 0x%b", fname, uarg[3], "\020\1<WAIT>\2<NEWWIN>\3<NEWPGRP>" );
char *a[1024];
char *e[1024];
SHOW_FLOW( 2, "run %s load args", fname );
if(
user_args_load( mina, maxa, a, 1024, uav ) ||
user_args_load( mina, maxa, e, 1024, uep )
)
{
ret = -1;
err = EFAULT;
SHOW_ERROR( 0, "fault reading args for %s", fname );
goto err_ret;
}
ret = usys_run( &err, u, fname, (const char**)a, (const char**)e, uarg[3] );
break;
}
case SYS_phantom_method:
// AARG(const char *, m_name, 0, 1);
// int nfd = aarg[1];
// AARG(int *, fds, 0, sizeof(int)*nfd);
// ret = usys_pmethod( &err, u, m_name, int nfd, int fds[] );
case SYS_phantom_toobject:
case SYS_phantom_fromobject:
case SYS_phantom_intmethod:
case SYS_phantom_strmethod:
goto unimpl;
// extern int phantom_runclass(const char *cname, int nmethod, int flags);
case SYS_phantom_runclass:
{
AARG(const char *, cname, 0, 1);
unsigned flags = uarg[2];
if(flags)
SHOW_ERROR( 0, "SYS_phantom_runclass: unknown flags %x" , flags );
usys_phantom_runclass( &err, u, cname, uarg[1] );
ret = err;
}
break;
case SYS_setproperty:
{
AARG(const char *, pName, 1, 1); // TODO check zero term string!
AARG(const char *, pValue, 2, 1);
usys_setproperty( &err, u, uarg[0], pName, pValue );
ret = err;
}
break;
case SYS_getproperty:
{
AARG(const char *, pName, 1, 1); // TODO check zero term string!
AARG(char *, pValue, 2, uarg[3]);
usys_getproperty( &err, u, uarg[0], pName, pValue, uarg[3] );
ret = err;
}
break;
case SYS_listproperties:
{
AARG(char *, buf, 2, uarg[3]);
usys_listproperties( &err, u, uarg[0], uarg[1], buf, uarg[3] );
ret = err;
}
break;
case SYS_name2ip:
{
AARG(in_addr_t *, out, 0, sizeof(in_addr_t));
AARG(const char *, name, 1, 1);
ret = name2ip( out, name, uarg[2] );
if( ret != 0 ) err = ret;
}
break;
case SYS_sigpending:
{
AARG(sigset_t *, set, 0, sizeof(sigset_t *));
ret = usys_sigpending( &err, u, set);
break;
}
case SYS_signal:
{
#if 0
AARG(sighandler_t, hand, 1, sizeof(sighandler_t));
hand = usys_signal( &err, u, uarg[0], hand);
// FIXME 64 bit error
ret = ((int)hand) - mina; // Convert pointer back
#else
// We do not use pointer (ret and uarg 1), so we don't have to convert it
ret = (int)usys_signal( &err, u, uarg[0], (void *)uarg[1]);
#endif
break;
}
case SYS_sigprocmask:
//case raise:
case SYS_sigaction:
case SYS_siginterrupt:
case SYS_sigsuspend:
goto unimpl;
unimpl:
SHOW_ERROR( 0, "Unimplemented syscall %d called", callno );
err = ENOSYS;
break;
default:
SHOW_ERROR( 0, "Unknown syscall %d called", callno );
err = ENOSYS;
break;
}
#else // HAVE_UNIX
int err = ENOSYS;
int ret = -1;
goto err_ret; // to clear warning
#endif // HAVE_UNIX
err_ret:
#ifdef ARCH_ia32
#define _RET_OK
st->eax = ret;
st->edx = err;
#endif
#ifdef ARCH_mips
#define _RET_OK
st->r2 = ret; // v0 (normal ret register, low)
st->r3 = err; // v1 (normal ret register, hi)
#endif
#ifdef ARCH_arm
#define _RET_OK
st->r0 = ret; // normal ret register
st->r1 = err; // arg1 reg, we can safely use for return of errno
#endif
#ifndef _RET_OK
#error arch ret
#endif
}
