7151 lines
156 KiB
C
7151 lines
156 KiB
C
/*
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* Copyright (c) 2006-2023, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2018-06-10 Bernard first version
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* 2021-02-03 lizhirui add limit condition for network syscall and add 64-bit arch support
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* 2021-02-06 lizhirui fix some bugs
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* 2021-02-12 lizhirui add 64-bit support for sys_brk
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* 2021-02-20 lizhirui fix some warnings
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* 2023-03-13 WangXiaoyao Format & fix syscall return value
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* 2023-07-06 Shell adapt the signal API, and clone, fork to new implementation of lwp signal
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* 2023-07-27 Shell Move tid_put() from lwp_free() to sys_exit()
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* 2023-11-16 xqyjlj fix some syscalls (about sched_*, get/setpriority)
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* 2023-11-17 xqyjlj add process group and session support
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* 2023-11-30 Shell Fix sys_setitimer() and exit(status)
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*/
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#define __RT_IPC_SOURCE__
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#define _GNU_SOURCE
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/* RT-Thread System call */
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#include <rtthread.h>
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#include <rthw.h>
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#include <board.h>
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#include <string.h>
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#include <stdint.h>
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#define DBG_TAG "lwp.syscall"
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#define DBG_LVL DBG_INFO
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#include <rtdbg.h>
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#include "syscall_generic.h"
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#include "libc_musl.h"
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#include "lwp_internal.h"
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#ifdef ARCH_MM_MMU
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#include <mm_aspace.h>
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#include <lwp_user_mm.h>
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#include <lwp_arch.h>
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#endif
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#include <fcntl.h>
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#include <sys/utsname.h>
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#ifdef RT_USING_DFS
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#include <eventfd.h>
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#include <poll.h>
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#include <sys/epoll.h>
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#include <sys/select.h>
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#include <dfs_file.h>
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#ifdef RT_USING_DFS_V2
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#include <dfs_dentry.h>
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#endif
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#include <unistd.h>
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#include <stdio.h> /* rename() */
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#include <sys/stat.h>
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#include <sys/statfs.h> /* statfs() */
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#include <sys/timerfd.h>
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#include <sys/ioctl.h>
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#ifdef RT_USING_MUSLLIBC
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#include <sys/signalfd.h>
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#endif
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#endif
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#include "mqueue.h"
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#ifdef RT_USING_SAL
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#include <netdev_ipaddr.h>
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#include <netdev.h>
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#include <sal_netdb.h>
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#include <sal_socket.h>
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#include <sys/socket.h>
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#endif /* RT_USING_SAL */
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#if (defined(RT_USING_SAL) && defined(SAL_USING_POSIX))
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#include <sys/socket.h>
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#define SYSCALL_NET(f) f
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#else
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#define SYSCALL_NET(f) SYSCALL_SIGN(sys_notimpl)
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#endif /* (defined(RT_USING_SAL) && defined(SAL_USING_POSIX)) */
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#if defined(RT_USING_DFS) && defined(ARCH_MM_MMU)
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#define SYSCALL_USPACE(f) f
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#else
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#define SYSCALL_USPACE(f) SYSCALL_SIGN(sys_notimpl)
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#endif /* defined(RT_USING_DFS) && defined(ARCH_MM_MMU) */
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#include "lwp_ipc_internal.h"
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#include <sched.h>
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#include <sys/sysinfo.h>
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#ifndef GRND_NONBLOCK
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#define GRND_NONBLOCK 0x0001
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#endif /* GRND_NONBLOCK */
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#ifndef GRND_RANDOM
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#define GRND_RANDOM 0x0002
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#endif /*GRND_RANDOM */
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#ifndef RT_USING_POSIX_TIMER
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#error "No definition RT_USING_POSIX_TIMER"
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#endif /* RT_USING_POSIX_TIMER */
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#ifndef RT_USING_POSIX_CLOCK
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#error "No definition RT_USING_POSIX_CLOCK"
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#endif /* RT_USING_POSIX_CLOCK */
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void lwp_cleanup(struct rt_thread *tid);
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#ifdef ARCH_MM_MMU
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#define ALLOC_KERNEL_STACK_SIZE 5120
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static void *kmem_get(size_t size)
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{
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return rt_malloc(size);
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}
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static void kmem_put(void *kptr)
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{
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rt_free(kptr);
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}
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#else /* ARCH_MM_MMU */
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#define ALLOC_KERNEL_STACK_SIZE 1536
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#define ALLOC_KERNEL_STACK_SIZE_MIN 1024
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#define ALLOC_KERNEL_STACK_SIZE_MAX 4096
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extern void set_user_context(void *stack);
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#endif /* ARCH_MM_MMU */
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#ifdef RT_USING_SAL
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/* The same socket option is defined differently in the user interfaces and the
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* implementation. The options should be converted in the kernel. */
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#include "lwp_sys_socket.h"
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static void convert_sockopt(int *level, int *optname)
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{
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if (*level == INTF_SOL_SOCKET)
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{
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*level = IMPL_SOL_SOCKET;
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switch (*optname)
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{
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case INTF_SO_REUSEADDR:
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*optname = IMPL_SO_REUSEADDR;
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break;
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case INTF_SO_KEEPALIVE:
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*optname = IMPL_SO_KEEPALIVE;
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break;
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case INTF_SO_BROADCAST:
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*optname = IMPL_SO_BROADCAST;
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break;
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case INTF_SO_ACCEPTCONN:
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*optname = IMPL_SO_ACCEPTCONN;
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break;
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case INTF_SO_DONTROUTE:
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*optname = IMPL_SO_DONTROUTE;
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break;
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case INTF_SO_LINGER:
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*optname = IMPL_SO_LINGER;
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break;
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case INTF_SO_OOBINLINE:
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*optname = IMPL_SO_OOBINLINE;
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break;
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case INTF_SO_REUSEPORT:
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*optname = IMPL_SO_REUSEPORT;
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break;
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case INTF_SO_SNDBUF:
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*optname = IMPL_SO_SNDBUF;
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break;
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case INTF_SO_RCVBUF:
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*optname = IMPL_SO_RCVBUF;
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break;
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case INTF_SO_SNDLOWAT:
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*optname = IMPL_SO_SNDLOWAT;
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break;
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case INTF_SO_RCVLOWAT:
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*optname = IMPL_SO_RCVLOWAT;
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break;
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case INTF_SO_SNDTIMEO:
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*optname = IMPL_SO_SNDTIMEO;
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break;
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case INTF_SO_RCVTIMEO:
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*optname = IMPL_SO_RCVTIMEO;
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break;
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case INTF_SO_ERROR:
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*optname = IMPL_SO_ERROR;
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break;
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case INTF_SO_TYPE:
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*optname = IMPL_SO_TYPE;
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break;
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case INTF_SO_NO_CHECK:
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*optname = IMPL_SO_NO_CHECK;
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break;
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/*
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* SO_DONTLINGER (*level = ((int)(~SO_LINGER))),
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* SO_USELOOPBACK (*level = 0x0040) and
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* SO_CONTIMEO (*level = 0x1009) are not supported for now.
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*/
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default:
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*optname = 0;
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break;
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}
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return;
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}
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if (*level == INTF_IPPROTO_IP)
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{
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*level = IMPL_IPPROTO_IP;
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switch (*optname)
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{
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case INTF_IP_TTL:
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*optname = IMPL_IP_TTL;
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break;
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case INTF_IP_TOS:
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*optname = IMPL_IP_TOS;
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break;
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case INTF_IP_MULTICAST_TTL:
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*optname = IMPL_IP_MULTICAST_TTL;
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break;
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case INTF_IP_MULTICAST_IF:
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*optname = IMPL_IP_MULTICAST_IF;
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break;
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case INTF_IP_MULTICAST_LOOP:
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*optname = IMPL_IP_MULTICAST_LOOP;
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break;
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case INTF_IP_ADD_MEMBERSHIP:
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*optname = IMPL_IP_ADD_MEMBERSHIP;
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break;
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case INTF_IP_DROP_MEMBERSHIP:
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*optname = IMPL_IP_DROP_MEMBERSHIP;
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break;
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default:
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break;
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}
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}
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if (*level == INTF_IPPROTO_TCP)
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{
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*level = IMPL_IPPROTO_TCP;
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switch (*optname)
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{
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case INTF_TCP_NODELAY:
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*optname = IMPL_TCP_NODELAY;
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break;
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case INTF_TCP_KEEPALIVE:
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*optname = IMPL_TCP_KEEPALIVE;
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break;
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case INTF_TCP_KEEPIDLE:
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*optname = IMPL_TCP_KEEPIDLE;
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break;
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case INTF_TCP_KEEPINTVL:
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*optname = IMPL_TCP_KEEPINTVL;
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break;
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case INTF_TCP_KEEPCNT:
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*optname = IMPL_TCP_KEEPCNT;
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break;
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default:
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break;
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}
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return;
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}
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if (*level == INTF_IPPROTO_IPV6)
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{
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*level = IMPL_IPPROTO_IPV6;
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switch (*optname)
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{
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case INTF_IPV6_V6ONLY:
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*optname = IMPL_IPV6_V6ONLY;
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break;
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default:
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break;
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}
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return;
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}
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}
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#endif /* RT_USING_SAL */
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#if defined(RT_USING_LWIP) || defined(SAL_USING_UNET)
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static void sockaddr_tolwip(const struct musl_sockaddr *std, struct sockaddr *lwip)
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{
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if (std && lwip)
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{
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lwip->sa_len = sizeof(*lwip);
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lwip->sa_family = (sa_family_t) std->sa_family;
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memcpy(lwip->sa_data, std->sa_data, sizeof(lwip->sa_data));
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}
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}
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static void sockaddr_tomusl(const struct sockaddr *lwip, struct musl_sockaddr *std)
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{
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if (std && lwip)
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{
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std->sa_family = (uint16_t) lwip->sa_family;
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memcpy(std->sa_data, lwip->sa_data, sizeof(std->sa_data));
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}
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}
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#endif
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static void _crt_thread_entry(void *parameter)
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{
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rt_thread_t tid;
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rt_size_t user_stack;
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tid = rt_thread_self();
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user_stack = (rt_size_t)tid->user_stack + tid->user_stack_size;
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user_stack &= ~7; //align 8
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#ifdef ARCH_MM_MMU
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arch_crt_start_umode(parameter, tid->user_entry, (void *)user_stack, (char *)tid->stack_addr + tid->stack_size);
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#else
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set_user_context((void*)user_stack);
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arch_start_umode(parameter, tid->user_entry, ((struct rt_lwp *)tid->lwp)->data_entry, (void*)user_stack);
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#endif /* ARCH_MM_MMU */
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}
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/* exit group */
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sysret_t sys_exit_group(int value)
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{
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sysret_t rc = 0;
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lwp_status_t lwp_status;
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struct rt_lwp *lwp = lwp_self();
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if (lwp)
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{
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lwp_status = LWP_CREATE_STAT_EXIT(value);
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lwp_exit(lwp, lwp_status);
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}
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else
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{
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LOG_E("Can't find matching process of current thread");
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rc = -EINVAL;
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}
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return rc;
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}
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/* thread exit */
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sysret_t sys_exit(int status)
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{
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sysret_t rc = 0;
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rt_thread_t tid;
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tid = rt_thread_self();
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if (tid && tid->lwp)
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{
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lwp_thread_exit(tid, status);
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}
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else
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{
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LOG_E("Can't find matching process of current thread");
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rc = -EINVAL;
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}
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return rc;
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}
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/* syscall: "read" ret: "ssize_t" args: "int" "void *" "size_t" */
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ssize_t sys_read(int fd, void *buf, size_t nbyte)
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{
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#ifdef ARCH_MM_MMU
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void *kmem = RT_NULL;
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ssize_t ret = -1;
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if (!nbyte)
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{
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return -EINVAL;
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}
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if (!lwp_user_accessable((void *)buf, nbyte))
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{
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return -EFAULT;
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}
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kmem = kmem_get(nbyte);
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if (!kmem)
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{
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return -ENOMEM;
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}
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ret = read(fd, kmem, nbyte);
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if (ret > 0)
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{
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if (ret != lwp_put_to_user(buf, kmem, ret))
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return -EFAULT;
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}
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if (ret < 0)
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{
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ret = GET_ERRNO();
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}
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kmem_put(kmem);
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return ret;
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#else
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if (!lwp_user_accessable((void *)buf, nbyte))
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{
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return -EFAULT;
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}
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ssize_t ret = read(fd, buf, nbyte);
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return (ret < 0 ? GET_ERRNO() : ret);
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#endif
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}
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/* syscall: "write" ret: "ssize_t" args: "int" "const void *" "size_t" */
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ssize_t sys_write(int fd, const void *buf, size_t nbyte)
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{
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#ifdef ARCH_MM_MMU
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void *kmem = RT_NULL;
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ssize_t ret = -1;
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if (nbyte)
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{
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if (!lwp_user_accessable((void *)buf, nbyte))
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{
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return -EFAULT;
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}
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kmem = kmem_get(nbyte);
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if (!kmem)
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{
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return -ENOMEM;
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}
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lwp_get_from_user(kmem, (void *)buf, nbyte);
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}
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ret = write(fd, kmem, nbyte);
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if (ret < 0)
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{
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ret = GET_ERRNO();
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}
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kmem_put(kmem);
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return ret;
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#else
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if (!lwp_user_accessable((void *)buf, nbyte))
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{
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return -EFAULT;
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}
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ssize_t ret = write(fd, buf, nbyte);
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return (ret < 0 ? GET_ERRNO() : ret);
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#endif
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}
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/* syscall: "lseek" ret: "off_t" args: "int" "off_t" "int" */
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size_t sys_lseek(int fd, size_t offset, int whence)
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{
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size_t ret = lseek(fd, offset, whence);
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return (ret < 0 ? GET_ERRNO() : ret);
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}
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/* syscall: "open" ret: "int" args: "const char *" "int" "..." */
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sysret_t sys_open(const char *name, int flag, ...)
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{
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#ifdef ARCH_MM_MMU
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int ret = -1;
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rt_size_t len = 0;
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char *kname = RT_NULL;
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mode_t mode = 0;
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if (!lwp_user_accessable((void *)name, 1))
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{
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return -EFAULT;
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}
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len = lwp_user_strlen(name);
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if (!len)
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{
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return -EINVAL;
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}
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kname = (char *)kmem_get(len + 1);
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if (!kname)
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{
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return -ENOMEM;
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}
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if ((flag & O_CREAT) || (flag & O_TMPFILE) == O_TMPFILE)
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{
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va_list ap;
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va_start(ap, flag);
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mode = va_arg(ap, mode_t);
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va_end(ap);
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}
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if (lwp_get_from_user(kname, (void *)name, len + 1) != (len + 1))
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{
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kmem_put(kname);
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return -EINVAL;
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}
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|
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ret = open(kname, flag, mode);
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if (ret < 0)
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{
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ret = GET_ERRNO();
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}
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kmem_put(kname);
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return ret;
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#else
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int ret;
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mode_t mode = 0;
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|
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if (!lwp_user_accessable((void *)name, 1))
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{
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return -EFAULT;
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}
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|
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if ((flag & O_CREAT) || (flag & O_TMPFILE) == O_TMPFILE)
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{
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va_list ap;
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va_start(ap, flag);
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mode = va_arg(ap, mode_t);
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va_end(ap);
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}
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ret = open(name, flag, mode);
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return (ret < 0 ? GET_ERRNO() : ret);
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#endif
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}
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|
|
/* syscall: "openat" ret: "int" args: "const char *" "mode_t" "mode" */
|
|
sysret_t sys_openat(int dirfd, const char *name, int flag, mode_t mode)
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|
{
|
|
#ifdef ARCH_MM_MMU
|
|
int ret = -1;
|
|
rt_size_t len = 0;
|
|
char *kname = RT_NULL;
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|
|
|
len = lwp_user_strlen(name);
|
|
if (len <= 0)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
kname = (char *)kmem_get(len + 1);
|
|
if (!kname)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
lwp_get_from_user(kname, (void *)name, len + 1);
|
|
ret = openat(dirfd, kname, flag, mode);
|
|
if (ret < 0)
|
|
{
|
|
ret = GET_ERRNO();
|
|
}
|
|
|
|
kmem_put(kname);
|
|
|
|
return ret;
|
|
#else
|
|
if (!lwp_user_accessable((void *)name, 1))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
int ret = openat(dirfd, name, flag, mode);
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
#endif
|
|
}
|
|
|
|
/* syscall: "close" ret: "int" args: "int" */
|
|
sysret_t sys_close(int fd)
|
|
{
|
|
int ret = close(fd);
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
/* syscall: "ioctl" ret: "int" args: "int" "u_long" "..." */
|
|
sysret_t sys_ioctl(int fd, unsigned long cmd, void* data)
|
|
{
|
|
int ret = ioctl(fd, cmd, data);
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_fstat(int file, struct stat *buf)
|
|
{
|
|
#ifdef ARCH_MM_MMU
|
|
int ret = -1;
|
|
struct stat statbuff = {0};
|
|
|
|
if (!lwp_user_accessable((void *)buf, sizeof(struct stat)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
else
|
|
{
|
|
ret = fstat(file, &statbuff);
|
|
|
|
if (ret == 0)
|
|
{
|
|
lwp_put_to_user(buf, &statbuff, sizeof statbuff);
|
|
}
|
|
else
|
|
{
|
|
ret = GET_ERRNO();
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
#else
|
|
if (!lwp_user_accessable((void *)buf, sizeof(struct stat)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
int ret = fstat(file, buf);
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
#endif
|
|
}
|
|
|
|
sysret_t sys_poll(struct pollfd *fds, nfds_t nfds, int timeout)
|
|
{
|
|
int ret = -1;
|
|
#ifdef ARCH_MM_MMU
|
|
struct pollfd *kfds = RT_NULL;
|
|
|
|
if (!lwp_user_accessable((void *)fds, nfds * sizeof *fds))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
kfds = (struct pollfd *)kmem_get(nfds * sizeof *kfds);
|
|
if (!kfds)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
lwp_get_from_user(kfds, fds, nfds * sizeof *kfds);
|
|
|
|
ret = poll(kfds, nfds, timeout);
|
|
if (ret > 0)
|
|
{
|
|
lwp_put_to_user(fds, kfds, nfds * sizeof *kfds);
|
|
}
|
|
|
|
kmem_put(kfds);
|
|
return ret;
|
|
#else
|
|
if (!lwp_user_accessable((void *)fds, nfds * sizeof *fds))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
ret = poll(fds, nfds, timeout);
|
|
return ret;
|
|
#endif /* ARCH_MM_MMU */
|
|
}
|
|
|
|
sysret_t sys_select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout)
|
|
{
|
|
#ifdef ARCH_MM_MMU
|
|
int ret = -1;
|
|
fd_set *kreadfds = RT_NULL, *kwritefds = RT_NULL, *kexceptfds = RT_NULL;
|
|
|
|
if (readfds)
|
|
{
|
|
if (!lwp_user_accessable((void *)readfds, sizeof *readfds))
|
|
{
|
|
SET_ERRNO(EFAULT);
|
|
goto quit;
|
|
}
|
|
kreadfds = (fd_set *)kmem_get(sizeof *kreadfds);
|
|
if (!kreadfds)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto quit;
|
|
}
|
|
lwp_get_from_user(kreadfds, readfds, sizeof *kreadfds);
|
|
}
|
|
if (writefds)
|
|
{
|
|
if (!lwp_user_accessable((void *)writefds, sizeof *writefds))
|
|
{
|
|
SET_ERRNO(EFAULT);
|
|
goto quit;
|
|
}
|
|
kwritefds = (fd_set *)kmem_get(sizeof *kwritefds);
|
|
if (!kwritefds)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto quit;
|
|
}
|
|
lwp_get_from_user(kwritefds, writefds, sizeof *kwritefds);
|
|
}
|
|
if (exceptfds)
|
|
{
|
|
if (!lwp_user_accessable((void *)exceptfds, sizeof *exceptfds))
|
|
{
|
|
SET_ERRNO(EFAULT);
|
|
goto quit;
|
|
}
|
|
kexceptfds = (fd_set *)kmem_get(sizeof *kexceptfds);
|
|
if (!kexceptfds)
|
|
{
|
|
SET_ERRNO(EINVAL);
|
|
goto quit;
|
|
}
|
|
lwp_get_from_user(kexceptfds, exceptfds, sizeof *kexceptfds);
|
|
}
|
|
|
|
ret = select(nfds, kreadfds, kwritefds, kexceptfds, timeout);
|
|
if (kreadfds)
|
|
{
|
|
lwp_put_to_user(readfds, kreadfds, sizeof *kreadfds);
|
|
}
|
|
if (kwritefds)
|
|
{
|
|
lwp_put_to_user(writefds, kwritefds, sizeof *kwritefds);
|
|
}
|
|
if (kexceptfds)
|
|
{
|
|
lwp_put_to_user(exceptfds, kexceptfds, sizeof *kexceptfds);
|
|
}
|
|
quit:
|
|
if (ret < 0)
|
|
{
|
|
ret = GET_ERRNO();
|
|
}
|
|
|
|
if (kreadfds)
|
|
{
|
|
kmem_put(kreadfds);
|
|
}
|
|
if (kwritefds)
|
|
{
|
|
kmem_put(kwritefds);
|
|
}
|
|
if (kexceptfds)
|
|
{
|
|
kmem_put(kexceptfds);
|
|
}
|
|
return ret;
|
|
#else
|
|
int ret;
|
|
|
|
if (!lwp_user_accessable((void *)readfds, sizeof *readfds))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
if (!lwp_user_accessable((void *)writefds, sizeof *writefds))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
if (!lwp_user_accessable((void *)exceptfds, sizeof *exceptfds))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
ret = select(nfds, readfds, writefds, exceptfds, timeout);
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
#endif
|
|
}
|
|
|
|
sysret_t sys_unlink(const char *pathname)
|
|
{
|
|
#ifdef ARCH_MM_MMU
|
|
int ret = -1;
|
|
rt_size_t len = 0;
|
|
char *kname = RT_NULL;
|
|
|
|
len = lwp_user_strlen(pathname);
|
|
if (!len)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
kname = (char *)kmem_get(len + 1);
|
|
if (!kname)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (lwp_get_from_user(kname, (void *)pathname, len + 1) != (len + 1))
|
|
{
|
|
kmem_put(kname);
|
|
return -EINVAL;
|
|
}
|
|
ret = unlink(kname);
|
|
if (ret < 0)
|
|
{
|
|
ret = GET_ERRNO();
|
|
}
|
|
|
|
kmem_put(kname);
|
|
return ret;
|
|
#else
|
|
int ret = 0;
|
|
ret = unlink(pathname);
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
#endif
|
|
}
|
|
|
|
/* syscall: "nanosleep" ret: "int" args: "const struct timespec *" "struct timespec *" */
|
|
sysret_t sys_nanosleep(const struct timespec *rqtp, struct timespec *rmtp)
|
|
{
|
|
int ret = 0;
|
|
dbg_log(DBG_LOG, "sys_nanosleep\n");
|
|
if (!lwp_user_accessable((void *)rqtp, sizeof *rqtp))
|
|
return -EFAULT;
|
|
|
|
#ifdef ARCH_MM_MMU
|
|
struct timespec rqtp_k;
|
|
struct timespec rmtp_k;
|
|
|
|
lwp_get_from_user(&rqtp_k, (void *)rqtp, sizeof rqtp_k);
|
|
ret = nanosleep(&rqtp_k, &rmtp_k);
|
|
if ((ret != -1 || rt_get_errno() == EINTR) && rmtp && lwp_user_accessable((void *)rmtp, sizeof *rmtp))
|
|
{
|
|
lwp_put_to_user(rmtp, (void *)&rmtp_k, sizeof rmtp_k);
|
|
if(ret != 0)
|
|
return -EINTR;
|
|
}
|
|
#else
|
|
if (rmtp)
|
|
{
|
|
if (!lwp_user_accessable((void *)rmtp, sizeof *rmtp))
|
|
return -EFAULT;
|
|
ret = nanosleep(rqtp, rmtp);
|
|
}
|
|
#endif
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
/* syscall: "gettimeofday" ret: "int" args: "struct timeval *" "struct timezone *" */
|
|
sysret_t sys_gettimeofday(struct timeval *tp, struct timezone *tzp)
|
|
{
|
|
#ifdef ARCH_MM_MMU
|
|
struct timeval t_k;
|
|
|
|
if (tp)
|
|
{
|
|
if (!lwp_user_accessable((void *)tp, sizeof *tp))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
t_k.tv_sec = rt_tick_get() / RT_TICK_PER_SECOND;
|
|
t_k.tv_usec = (rt_tick_get() % RT_TICK_PER_SECOND) * (1000000 / RT_TICK_PER_SECOND);
|
|
|
|
lwp_put_to_user(tp, (void *)&t_k, sizeof t_k);
|
|
}
|
|
#else
|
|
if (tp)
|
|
{
|
|
if (!lwp_user_accessable((void *)tp, sizeof *tp))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
tp->tv_sec = rt_tick_get() / RT_TICK_PER_SECOND;
|
|
tp->tv_usec = (rt_tick_get() % RT_TICK_PER_SECOND) * (1000000 / RT_TICK_PER_SECOND);
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
sysret_t sys_settimeofday(const struct timeval *tv, const struct timezone *tzp)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
sysret_t sys_exec(char *filename, int argc, char **argv, char **envp)
|
|
{
|
|
int ret = 0;
|
|
int len = 0;
|
|
char *kfilename = RT_NULL;
|
|
|
|
len = lwp_user_strlen(filename);
|
|
if (len <= 0)
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
kfilename = (char *)kmem_get(len + 1);
|
|
if (!kfilename)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (lwp_get_from_user(kfilename, (void *)filename, len + 1) != (len + 1))
|
|
{
|
|
kmem_put(kfilename);
|
|
return -EFAULT;
|
|
}
|
|
|
|
ret = lwp_execve(kfilename, 0, argc, argv, envp);
|
|
|
|
kmem_put(kfilename);
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_kill(int pid, int signo)
|
|
{
|
|
rt_err_t kret = 0;
|
|
sysret_t sysret;
|
|
struct rt_lwp *lwp = RT_NULL;
|
|
|
|
/* handling the semantics of sys_kill */
|
|
if (pid > 0)
|
|
{
|
|
/**
|
|
* Brief: Match the pid and send signal to the lwp if found
|
|
* Note: Critical Section
|
|
* - pid tree (READ. since the lwp is fetch from the pid tree, it must stay there)
|
|
*/
|
|
lwp_pid_lock_take();
|
|
lwp = lwp_from_pid_raw_locked(pid);
|
|
if (lwp)
|
|
{
|
|
lwp_ref_inc(lwp);
|
|
lwp_pid_lock_release();
|
|
}
|
|
else
|
|
{
|
|
lwp_pid_lock_release();
|
|
kret = -RT_ENOENT;
|
|
}
|
|
|
|
if (lwp)
|
|
{
|
|
kret = lwp_signal_kill(lwp, signo, SI_USER, 0);
|
|
lwp_ref_dec(lwp);
|
|
}
|
|
}
|
|
else if (pid < -1 || pid == 0)
|
|
{
|
|
pid_t pgid = 0;
|
|
rt_processgroup_t group;
|
|
|
|
if (pid == 0)
|
|
{
|
|
/**
|
|
* sig shall be sent to all processes (excluding an unspecified set
|
|
* of system processes) whose process group ID is equal to the process
|
|
* group ID of the sender, and for which the process has permission to
|
|
* send a signal.
|
|
*/
|
|
pgid = lwp_pgid_get_byprocess(lwp_self());
|
|
}
|
|
else
|
|
{
|
|
/**
|
|
* sig shall be sent to all processes (excluding an unspecified set
|
|
* of system processes) whose process group ID is equal to the absolute
|
|
* value of pid, and for which the process has permission to send a signal.
|
|
*/
|
|
pgid = -pid;
|
|
}
|
|
|
|
group = lwp_pgrp_find(pgid);
|
|
if (group != RT_NULL)
|
|
{
|
|
PGRP_LOCK(group);
|
|
kret = lwp_pgrp_signal_kill(group, signo, SI_USER, 0);
|
|
PGRP_UNLOCK(group);
|
|
}
|
|
else
|
|
{
|
|
kret = -ECHILD;
|
|
}
|
|
}
|
|
else if (pid == -1)
|
|
{
|
|
/**
|
|
* sig shall be sent to all processes (excluding an unspecified set
|
|
* of system processes) for which the process has permission to send
|
|
* that signal.
|
|
*/
|
|
kret = -RT_ENOSYS;
|
|
}
|
|
|
|
switch (kret)
|
|
{
|
|
case -RT_ENOENT:
|
|
sysret = -ESRCH;
|
|
break;
|
|
case -RT_EINVAL:
|
|
sysret = -EINVAL;
|
|
break;
|
|
case -RT_ENOSYS:
|
|
sysret = -ENOSYS;
|
|
break;
|
|
|
|
/**
|
|
* kill() never returns ENOMEM, so return normally to caller.
|
|
* IEEE Std 1003.1-2017 says the kill() function is successful
|
|
* if the process has permission to send sig to any of the
|
|
* processes specified by pid.
|
|
*/
|
|
case -RT_ENOMEM:
|
|
default:
|
|
sysret = 0;
|
|
}
|
|
return sysret;
|
|
}
|
|
|
|
sysret_t sys_getpid(void)
|
|
{
|
|
return lwp_getpid();
|
|
}
|
|
|
|
sysret_t sys_getppid(void)
|
|
{
|
|
rt_lwp_t process;
|
|
|
|
process = lwp_self();
|
|
if (process->parent == RT_NULL)
|
|
{
|
|
LOG_E("%s: process %d has no parent process", __func__, lwp_to_pid(process));
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
return lwp_to_pid(process->parent);
|
|
}
|
|
}
|
|
|
|
/* syscall: "getpriority" ret: "int" args: "int" "id_t" */
|
|
sysret_t sys_getpriority(int which, id_t who)
|
|
{
|
|
long prio = 0xff;
|
|
|
|
if (which == PRIO_PROCESS)
|
|
{
|
|
struct rt_lwp *lwp = RT_NULL;
|
|
|
|
lwp_pid_lock_take();
|
|
lwp = lwp_from_pid_locked(who);
|
|
|
|
if (lwp)
|
|
{
|
|
rt_thread_t thread = rt_list_entry(lwp->t_grp.prev, struct rt_thread, sibling);
|
|
prio = RT_SCHED_PRIV(thread).current_priority;
|
|
}
|
|
|
|
lwp_pid_lock_release();
|
|
}
|
|
|
|
return prio;
|
|
}
|
|
|
|
/* syscall: "setpriority" ret: "int" args: "int" "id_t" "int" */
|
|
sysret_t sys_setpriority(int which, id_t who, int prio)
|
|
{
|
|
if (which == PRIO_PROCESS)
|
|
{
|
|
struct rt_lwp *lwp = RT_NULL;
|
|
|
|
lwp_pid_lock_take();
|
|
lwp = lwp_from_pid_locked(who);
|
|
|
|
if (lwp && prio >= 0 && prio < RT_THREAD_PRIORITY_MAX)
|
|
{
|
|
rt_list_t *list;
|
|
rt_thread_t thread;
|
|
for (list = lwp->t_grp.next; list != &lwp->t_grp; list = list->next)
|
|
{
|
|
thread = rt_list_entry(list, struct rt_thread, sibling);
|
|
rt_thread_control(thread, RT_THREAD_CTRL_CHANGE_PRIORITY, &prio);
|
|
}
|
|
lwp_pid_lock_release();
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
lwp_pid_lock_release();
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
rt_sem_t sys_sem_create(const char *name, rt_uint32_t value, rt_uint8_t flag)
|
|
{
|
|
int len = 0;
|
|
char *kname = RT_NULL;
|
|
|
|
len = lwp_user_strlen(name);
|
|
if (len <= 0)
|
|
{
|
|
return RT_NULL;
|
|
}
|
|
|
|
kname = (char *)kmem_get(len + 1);
|
|
if (!kname)
|
|
{
|
|
return RT_NULL;
|
|
}
|
|
|
|
if (lwp_get_from_user(kname, (void *)name, len + 1) != (len + 1))
|
|
{
|
|
kmem_put(kname);
|
|
return RT_NULL;
|
|
}
|
|
|
|
rt_sem_t sem = rt_sem_create(kname, value, flag);
|
|
if (lwp_user_object_add(lwp_self(), (rt_object_t)sem) != 0)
|
|
{
|
|
rt_sem_delete(sem);
|
|
sem = NULL;
|
|
}
|
|
|
|
kmem_put(kname);
|
|
|
|
return sem;
|
|
}
|
|
|
|
sysret_t sys_sem_delete(rt_sem_t sem)
|
|
{
|
|
return lwp_user_object_delete(lwp_self(), (rt_object_t)sem);
|
|
}
|
|
|
|
sysret_t sys_sem_take(rt_sem_t sem, rt_int32_t time)
|
|
{
|
|
return rt_sem_take_interruptible(sem, time);
|
|
}
|
|
|
|
sysret_t sys_sem_release(rt_sem_t sem)
|
|
{
|
|
return rt_sem_release(sem);
|
|
}
|
|
|
|
rt_mutex_t sys_mutex_create(const char *name, rt_uint8_t flag)
|
|
{
|
|
int len = 0;
|
|
char *kname = RT_NULL;
|
|
rt_mutex_t mutex = RT_NULL;
|
|
|
|
len = lwp_user_strlen(name);
|
|
if (len <= 0)
|
|
{
|
|
return RT_NULL;
|
|
}
|
|
|
|
kname = (char *)kmem_get(len + 1);
|
|
if (!kname)
|
|
{
|
|
return RT_NULL;
|
|
}
|
|
|
|
if (lwp_get_from_user(kname, (void *)name, len + 1) != (len + 1))
|
|
{
|
|
kmem_put(kname);
|
|
return RT_NULL;
|
|
}
|
|
|
|
mutex = rt_mutex_create(kname, flag);
|
|
if(mutex == RT_NULL)
|
|
return RT_NULL;
|
|
|
|
if (lwp_user_object_add(lwp_self(), (rt_object_t)mutex) != 0)
|
|
{
|
|
rt_mutex_delete(mutex);
|
|
mutex = RT_NULL;
|
|
}
|
|
|
|
kmem_put(kname);
|
|
|
|
return mutex;
|
|
}
|
|
|
|
sysret_t sys_mutex_delete(rt_mutex_t mutex)
|
|
{
|
|
return lwp_user_object_delete(lwp_self(), (rt_object_t)mutex);
|
|
}
|
|
|
|
sysret_t sys_mutex_take(rt_mutex_t mutex, rt_int32_t time)
|
|
{
|
|
return rt_mutex_take_interruptible(mutex, time);
|
|
}
|
|
|
|
sysret_t sys_mutex_release(rt_mutex_t mutex)
|
|
{
|
|
return rt_mutex_release(mutex);
|
|
}
|
|
|
|
#ifdef ARCH_MM_MMU
|
|
/* memory allocation */
|
|
rt_base_t sys_brk(void *addr)
|
|
{
|
|
return lwp_brk(addr);
|
|
}
|
|
|
|
void *sys_mmap2(void *addr, size_t length, int prot,
|
|
int flags, int fd, size_t pgoffset)
|
|
{
|
|
sysret_t rc = 0;
|
|
long offset = 0;
|
|
|
|
/* aligned for user addr */
|
|
if ((rt_base_t)addr & ARCH_PAGE_MASK)
|
|
{
|
|
if (flags & MAP_FIXED)
|
|
rc = -EINVAL;
|
|
else
|
|
{
|
|
offset = (char *)addr - (char *)RT_ALIGN_DOWN((rt_base_t)addr, ARCH_PAGE_SIZE);
|
|
length += offset;
|
|
addr = (void *)RT_ALIGN_DOWN((rt_base_t)addr, ARCH_PAGE_SIZE);
|
|
}
|
|
}
|
|
|
|
if (rc == 0)
|
|
{
|
|
/* fix parameter passing (both along have same effect) */
|
|
if (fd == -1 || flags & MAP_ANONYMOUS)
|
|
{
|
|
fd = -1;
|
|
/* MAP_SHARED has no effect and treated as nothing */
|
|
flags &= ~MAP_SHARED;
|
|
flags |= MAP_PRIVATE | MAP_ANONYMOUS;
|
|
}
|
|
rc = (sysret_t)lwp_mmap2(lwp_self(), addr, length, prot, flags, fd, pgoffset);
|
|
}
|
|
|
|
return (char *)rc + offset;
|
|
}
|
|
|
|
sysret_t sys_munmap(void *addr, size_t length)
|
|
{
|
|
return lwp_munmap(lwp_self(), addr, length);
|
|
}
|
|
|
|
void *sys_mremap(void *old_address, size_t old_size,
|
|
size_t new_size, int flags, void *new_address)
|
|
{
|
|
return lwp_mremap(lwp_self(), old_address, old_size, new_size, flags, new_address);
|
|
}
|
|
|
|
sysret_t sys_madvise(void *addr, size_t len, int behav)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
#endif
|
|
|
|
rt_event_t sys_event_create(const char *name, rt_uint8_t flag)
|
|
{
|
|
int len = 0;
|
|
rt_event_t event = RT_NULL;
|
|
char *kname = RT_NULL;
|
|
|
|
len = lwp_user_strlen(name);
|
|
if (len <= 0)
|
|
{
|
|
return RT_NULL;
|
|
}
|
|
|
|
kname = (char *)kmem_get(len + 1);
|
|
if (!kname)
|
|
{
|
|
return RT_NULL;
|
|
}
|
|
|
|
if (lwp_get_from_user(kname, (void *)name, len + 1) != (len + 1))
|
|
{
|
|
kmem_put(kname);
|
|
return RT_NULL;
|
|
}
|
|
|
|
event = rt_event_create(kname, flag);
|
|
if (lwp_user_object_add(lwp_self(), (rt_object_t)event) != 0)
|
|
{
|
|
rt_event_delete(event);
|
|
event = NULL;
|
|
}
|
|
|
|
kmem_put(kname);
|
|
|
|
return event;
|
|
}
|
|
|
|
sysret_t sys_event_delete(rt_event_t event)
|
|
{
|
|
return lwp_user_object_delete(lwp_self(), (rt_object_t)event);
|
|
}
|
|
|
|
sysret_t sys_event_send(rt_event_t event, rt_uint32_t set)
|
|
{
|
|
return rt_event_send(event, set);
|
|
}
|
|
|
|
sysret_t sys_event_recv(rt_event_t event,
|
|
rt_uint32_t set,
|
|
rt_uint8_t opt,
|
|
rt_int32_t timeout,
|
|
rt_uint32_t *recved)
|
|
{
|
|
int ret = 0;
|
|
rt_uint32_t krecved;
|
|
|
|
if ((recved != NULL) && !lwp_user_accessable((void *)recved, sizeof(rt_uint32_t *)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
ret = rt_event_recv(event, set, opt, timeout, &krecved);
|
|
if ((ret == RT_EOK) && recved)
|
|
{
|
|
lwp_put_to_user((void *)recved, &krecved, sizeof(rt_uint32_t *));
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
rt_mailbox_t sys_mb_create(const char *name, rt_size_t size, rt_uint8_t flag)
|
|
{
|
|
int len = 0;
|
|
rt_mailbox_t mb = RT_NULL;
|
|
char *kname = RT_NULL;
|
|
|
|
len = lwp_user_strlen(name);
|
|
if (len <= 0)
|
|
{
|
|
return RT_NULL;
|
|
}
|
|
|
|
kname = (char *)kmem_get(len + 1);
|
|
if (!kname)
|
|
{
|
|
return RT_NULL;
|
|
}
|
|
|
|
if (lwp_get_from_user(kname, (void *)name, len + 1) != (len + 1))
|
|
{
|
|
kmem_put(kname);
|
|
return RT_NULL;
|
|
}
|
|
|
|
mb = rt_mb_create(kname, size, flag);
|
|
if (lwp_user_object_add(lwp_self(), (rt_object_t)mb) != 0)
|
|
{
|
|
rt_mb_delete(mb);
|
|
mb = NULL;
|
|
}
|
|
|
|
kmem_put(kname);
|
|
|
|
return mb;
|
|
}
|
|
|
|
sysret_t sys_mb_delete(rt_mailbox_t mb)
|
|
{
|
|
return lwp_user_object_delete(lwp_self(), (rt_object_t)mb);
|
|
}
|
|
|
|
sysret_t sys_mb_send(rt_mailbox_t mb, rt_ubase_t value)
|
|
{
|
|
return rt_mb_send(mb, value);
|
|
}
|
|
|
|
sysret_t sys_mb_send_wait(rt_mailbox_t mb,
|
|
rt_ubase_t value,
|
|
rt_int32_t timeout)
|
|
{
|
|
return rt_mb_send_wait(mb, value, timeout);
|
|
}
|
|
|
|
sysret_t sys_mb_recv(rt_mailbox_t mb, rt_ubase_t *value, rt_int32_t timeout)
|
|
{
|
|
int ret = 0;
|
|
rt_ubase_t *kvalue;
|
|
|
|
if (!lwp_user_accessable((void *)value, sizeof(rt_ubase_t *)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
kvalue = kmem_get(sizeof(rt_ubase_t *));
|
|
if (kvalue == RT_NULL)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
ret = rt_mb_recv(mb, (rt_ubase_t *)kvalue, timeout);
|
|
if (ret == RT_EOK)
|
|
{
|
|
lwp_put_to_user(value, kvalue, sizeof(rt_ubase_t *));
|
|
}
|
|
|
|
kmem_put(kvalue);
|
|
|
|
return ret;
|
|
}
|
|
|
|
rt_weak int syslog_ctrl(int type, char *buf, int len)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
sysret_t sys_syslog(int type, char *buf, int len)
|
|
{
|
|
char *tmp;
|
|
int ret = -1;
|
|
|
|
if (!lwp_user_accessable((void *)buf, len))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
tmp = (char *)rt_malloc(len);
|
|
if (!tmp)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
ret = syslog_ctrl(type, tmp, len);
|
|
lwp_put_to_user(buf, tmp, len);
|
|
rt_free(tmp);
|
|
|
|
return ret;
|
|
}
|
|
|
|
rt_mq_t sys_mq_create(const char *name,
|
|
rt_size_t msg_size,
|
|
rt_size_t max_msgs,
|
|
rt_uint8_t flag)
|
|
{
|
|
rt_mq_t mq = RT_NULL;
|
|
|
|
int len = 0;
|
|
char *kname = RT_NULL;
|
|
|
|
len = lwp_user_strlen(name);
|
|
if (len <= 0)
|
|
{
|
|
return RT_NULL;
|
|
}
|
|
|
|
kname = (char *)kmem_get(len + 1);
|
|
if (!kname)
|
|
{
|
|
return RT_NULL;
|
|
}
|
|
|
|
if (lwp_get_from_user(kname, (void *)name, len + 1) != (len + 1))
|
|
{
|
|
kmem_put(kname);
|
|
return RT_NULL;
|
|
}
|
|
|
|
mq = rt_mq_create(kname, msg_size, max_msgs, flag);
|
|
if (lwp_user_object_add(lwp_self(), (rt_object_t)mq) != 0)
|
|
{
|
|
rt_mq_delete(mq);
|
|
mq = NULL;
|
|
}
|
|
|
|
kmem_put(kname);
|
|
|
|
return mq;
|
|
}
|
|
|
|
sysret_t sys_mq_delete(rt_mq_t mq)
|
|
{
|
|
return lwp_user_object_delete(lwp_self(), (rt_object_t)mq);
|
|
}
|
|
|
|
sysret_t sys_mq_send(rt_mq_t mq, void *buffer, rt_size_t size)
|
|
{
|
|
int ret = 0;
|
|
void *kbuffer = RT_NULL;
|
|
|
|
if (!lwp_user_accessable((void *)buffer, size))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
kbuffer = kmem_get(size);
|
|
if (kbuffer == RT_NULL)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (lwp_get_from_user(kbuffer, buffer, size) != size)
|
|
{
|
|
kmem_put(kbuffer);
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = rt_mq_send(mq, kbuffer, size);
|
|
|
|
kmem_put(kbuffer);
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_mq_urgent(rt_mq_t mq, void *buffer, rt_size_t size)
|
|
{
|
|
int ret = 0;
|
|
void *kbuffer = RT_NULL;
|
|
|
|
if (!lwp_user_accessable((void *)buffer, size))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
kbuffer = kmem_get(size);
|
|
if (kbuffer == RT_NULL)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (lwp_get_from_user(kbuffer, buffer, size) != size)
|
|
{
|
|
kmem_put(kbuffer);
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = rt_mq_urgent(mq, kbuffer, size);
|
|
|
|
kmem_put(kbuffer);
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_mq_recv(rt_mq_t mq,
|
|
void *buffer,
|
|
rt_size_t size,
|
|
rt_int32_t timeout)
|
|
{
|
|
int ret = 0;
|
|
void *kbuffer = RT_NULL;
|
|
|
|
if (!lwp_user_accessable((void *)buffer, size))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
kbuffer = kmem_get(size);
|
|
if (kbuffer == RT_NULL)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
ret = rt_mq_recv(mq, kbuffer, size, timeout);
|
|
if (ret > 0)
|
|
lwp_put_to_user((void *)buffer, (void *)kbuffer, ret);
|
|
|
|
kmem_put(kbuffer);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void timer_timeout_callback(void *parameter)
|
|
{
|
|
rt_sem_t sem = (rt_sem_t)parameter;
|
|
rt_sem_release(sem);
|
|
}
|
|
|
|
rt_timer_t sys_rt_timer_create(const char *name,
|
|
void *data,
|
|
rt_tick_t time,
|
|
rt_uint8_t flag)
|
|
{
|
|
int len = 0;
|
|
char *kname = RT_NULL;
|
|
rt_timer_t timer = RT_NULL;
|
|
|
|
len = lwp_user_strlen(name);
|
|
if (len <= 0)
|
|
{
|
|
return RT_NULL;
|
|
}
|
|
|
|
kname = (char *)kmem_get(len + 1);
|
|
if (!kname)
|
|
{
|
|
return RT_NULL;
|
|
}
|
|
|
|
if (lwp_get_from_user(kname, (void *)name, len + 1) != (len + 1))
|
|
{
|
|
kmem_put(kname);
|
|
return RT_NULL;
|
|
}
|
|
|
|
timer = rt_timer_create(kname, timer_timeout_callback, (void *)data, time, flag);
|
|
if (lwp_user_object_add(lwp_self(), (rt_object_t)timer) != 0)
|
|
{
|
|
rt_timer_delete(timer);
|
|
timer = NULL;
|
|
}
|
|
|
|
kmem_put(kname);
|
|
|
|
return timer;
|
|
}
|
|
|
|
sysret_t sys_rt_timer_delete(rt_timer_t timer)
|
|
{
|
|
return lwp_user_object_delete(lwp_self(), (rt_object_t)timer);
|
|
}
|
|
|
|
sysret_t sys_rt_timer_start(rt_timer_t timer)
|
|
{
|
|
return rt_timer_start(timer);
|
|
}
|
|
|
|
sysret_t sys_rt_timer_stop(rt_timer_t timer)
|
|
{
|
|
return rt_timer_stop(timer);
|
|
}
|
|
|
|
sysret_t sys_rt_timer_control(rt_timer_t timer, int cmd, void *arg)
|
|
{
|
|
return rt_timer_control(timer, cmd, arg);
|
|
}
|
|
|
|
/* MUSL compatible */
|
|
struct ksigevent
|
|
{
|
|
union sigval sigev_value;
|
|
int sigev_signo;
|
|
int sigev_notify;
|
|
int sigev_tid;
|
|
};
|
|
|
|
/* to protect unsafe implementation in current rt-smart toolchain */
|
|
RT_STATIC_ASSERT(sigevent_compatible, offsetof(struct ksigevent, sigev_tid) == offsetof(struct sigevent, sigev_notify_function));
|
|
|
|
sysret_t sys_timer_create(clockid_t clockid, struct sigevent *restrict sevp, timer_t *restrict timerid)
|
|
{
|
|
int ret = 0;
|
|
#ifdef ARCH_MM_MMU
|
|
struct sigevent sevp_k;
|
|
timer_t timerid_k;
|
|
int utimer;
|
|
|
|
if (sevp == NULL)
|
|
{
|
|
sevp_k.sigev_notify = SIGEV_SIGNAL;
|
|
sevp_k.sigev_signo = SIGALRM;
|
|
sevp = &sevp_k;
|
|
}
|
|
else
|
|
{
|
|
/* clear extra bytes if any */
|
|
if (sizeof(struct ksigevent) < sizeof(struct sigevent))
|
|
memset(&sevp_k, 0, sizeof(sevp_k));
|
|
|
|
/* musl passes `struct ksigevent` to kernel, we shoule only get size of that bytes */
|
|
if (!lwp_get_from_user(&sevp_k, (void *)sevp, sizeof(struct ksigevent)))
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
ret = _SYS_WRAP(timer_create(clockid, &sevp_k, &timerid_k));
|
|
|
|
if (ret != -RT_ERROR)
|
|
{
|
|
utimer = (rt_ubase_t)timerid_k;
|
|
if (!lwp_put_to_user(sevp, (void *)&sevp_k, sizeof(struct ksigevent)) ||
|
|
!lwp_put_to_user(timerid, (void *)&utimer, sizeof(utimer)))
|
|
ret = -EINVAL;
|
|
}
|
|
#else
|
|
ret = _SYS_WRAP(timer_create(clockid, sevp, timerid));
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_timer_delete(timer_t timerid)
|
|
{
|
|
int ret = timer_delete(timerid);
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_timer_settime(timer_t timerid, int flags,
|
|
const struct itimerspec *restrict new_value,
|
|
struct itimerspec *restrict old_value)
|
|
{
|
|
int ret = 0;
|
|
#ifdef ARCH_MM_MMU
|
|
struct itimerspec new_value_k;
|
|
struct itimerspec old_value_k;
|
|
|
|
if (!lwp_get_from_user(&new_value_k, (void *)new_value, sizeof(*new_value)) ||
|
|
(old_value && !lwp_get_from_user(&old_value_k, (void *)old_value, sizeof(*old_value))))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
ret = timer_settime(timerid, flags, &new_value_k, &old_value_k);
|
|
lwp_put_to_user(old_value, (void *)&old_value_k, sizeof old_value_k);
|
|
|
|
#else
|
|
ret = timer_settime(timerid, flags, new_value, old_value);
|
|
#endif
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_timer_gettime(timer_t timerid, struct itimerspec *curr_value)
|
|
{
|
|
int ret = 0;
|
|
#ifdef ARCH_MM_MMU
|
|
|
|
struct itimerspec curr_value_k;
|
|
lwp_get_from_user(&curr_value_k, (void *)curr_value, sizeof curr_value_k);
|
|
ret = timer_gettime(timerid, &curr_value_k);
|
|
lwp_put_to_user(curr_value, (void *)&curr_value_k, sizeof curr_value_k);
|
|
#else
|
|
ret = timer_gettime(timerid, curr_value);
|
|
#endif
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_timer_getoverrun(timer_t timerid)
|
|
{
|
|
int ret = 0;
|
|
ret = timer_getoverrun(timerid);
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
rt_thread_t sys_thread_create(void *arg[])
|
|
{
|
|
void *user_stack = 0;
|
|
struct rt_lwp *lwp = 0;
|
|
rt_thread_t thread = RT_NULL;
|
|
int tid = 0;
|
|
|
|
lwp = rt_thread_self()->lwp;
|
|
lwp_ref_inc(lwp);
|
|
#ifdef ARCH_MM_MMU
|
|
user_stack = lwp_map_user(lwp, 0, (size_t)arg[3], 0);
|
|
if (!user_stack)
|
|
{
|
|
goto fail;
|
|
}
|
|
if ((tid = lwp_tid_get()) == 0)
|
|
{
|
|
goto fail;
|
|
}
|
|
thread = rt_thread_create((const char *)arg[0],
|
|
_crt_thread_entry,
|
|
(void *)arg[2],
|
|
ALLOC_KERNEL_STACK_SIZE,
|
|
(rt_uint8_t)(size_t)arg[4],
|
|
(rt_uint32_t)(rt_size_t)arg[5]);
|
|
if (!thread)
|
|
{
|
|
goto fail;
|
|
}
|
|
|
|
#ifdef RT_USING_SMP
|
|
RT_SCHED_CTX(thread).bind_cpu = lwp->bind_cpu;
|
|
#endif
|
|
thread->cleanup = lwp_cleanup;
|
|
thread->user_entry = (void (*)(void *))arg[1];
|
|
thread->user_stack = (void *)user_stack;
|
|
thread->user_stack_size = (rt_size_t)arg[3];
|
|
#else
|
|
rt_uint32_t kstack_size = (rt_uint32_t)arg[7];
|
|
if (kstack_size < ALLOC_KERNEL_STACK_SIZE_MIN)
|
|
{
|
|
/* When kstack size is 0, the default size of the kernel stack is used */
|
|
kstack_size = kstack_size ? ALLOC_KERNEL_STACK_SIZE_MIN : ALLOC_KERNEL_STACK_SIZE;
|
|
}
|
|
else if (kstack_size > ALLOC_KERNEL_STACK_SIZE_MAX)
|
|
{
|
|
kstack_size = ALLOC_KERNEL_STACK_SIZE_MAX;
|
|
}
|
|
|
|
user_stack = (void *)arg[3];
|
|
if ((!user_stack) || ((rt_uint32_t)arg[6] == RT_NULL))
|
|
{
|
|
goto fail;
|
|
}
|
|
|
|
if ((tid = lwp_tid_get()) == 0)
|
|
{
|
|
goto fail;
|
|
}
|
|
|
|
thread = rt_thread_create((const char *)arg[0], _crt_thread_entry, (void *)arg[2], kstack_size, (rt_uint8_t)(size_t)arg[5], (rt_uint32_t)arg[6]);
|
|
if (!thread)
|
|
{
|
|
goto fail;
|
|
}
|
|
thread->cleanup = lwp_cleanup;
|
|
thread->user_entry = (void (*)(void *))arg[1];
|
|
thread->user_stack = (void *)user_stack;
|
|
thread->user_stack_size = (uint32_t)arg[4];
|
|
rt_memset(thread->user_stack, '#', thread->user_stack_size);
|
|
#endif /* ARCH_MM_MMU */
|
|
|
|
thread->lwp = (void*)lwp;
|
|
thread->tid = tid;
|
|
lwp_tid_set_thread(tid, thread);
|
|
|
|
if (lwp->debug)
|
|
{
|
|
rt_thread_control(thread, RT_THREAD_CTRL_BIND_CPU, (void*)0);
|
|
}
|
|
|
|
LWP_LOCK(lwp);
|
|
rt_list_insert_after(&lwp->t_grp, &thread->sibling);
|
|
LWP_UNLOCK(lwp);
|
|
|
|
return thread;
|
|
|
|
fail:
|
|
lwp_tid_put(tid);
|
|
if (lwp)
|
|
{
|
|
lwp_ref_dec(lwp);
|
|
}
|
|
return RT_NULL;
|
|
}
|
|
|
|
#ifdef ARCH_MM_MMU
|
|
|
|
long _sys_clone(void *arg[])
|
|
{
|
|
struct rt_lwp *lwp = 0;
|
|
rt_thread_t thread = RT_NULL;
|
|
rt_thread_t self = RT_NULL;
|
|
int tid = 0;
|
|
|
|
unsigned long flags = 0;
|
|
void *user_stack = RT_NULL;
|
|
int *new_tid = RT_NULL;
|
|
void *tls = RT_NULL;
|
|
/*
|
|
musl call flags (CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND
|
|
| CLONE_THREAD | CLONE_SYSVSEM | CLONE_SETTLS
|
|
| CLONE_PARENT_SETTID | CLONE_CHILD_CLEARTID | CLONE_DETACHED);
|
|
*/
|
|
|
|
/* check args */
|
|
if (!lwp_user_accessable(arg, sizeof(void *[SYS_CLONE_ARGS_NR])))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
flags = (unsigned long)(size_t)arg[0];
|
|
if ((flags & (CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_THREAD | CLONE_SYSVSEM))
|
|
!= (CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_THREAD | CLONE_SYSVSEM))
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
user_stack = arg[1];
|
|
new_tid = (int *)arg[2];
|
|
tls = (void *)arg[3];
|
|
|
|
if ((flags & CLONE_PARENT_SETTID) == CLONE_PARENT_SETTID)
|
|
{
|
|
if (!lwp_user_accessable(new_tid, sizeof(int)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
}
|
|
|
|
self = rt_thread_self();
|
|
lwp = self->lwp;
|
|
lwp_ref_inc(lwp);
|
|
if (!user_stack)
|
|
{
|
|
SET_ERRNO(EINVAL);
|
|
goto fail;
|
|
}
|
|
if ((tid = lwp_tid_get()) == 0)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
thread = rt_thread_create(self->parent.name,
|
|
RT_NULL,
|
|
RT_NULL,
|
|
self->stack_size,
|
|
RT_SCHED_PRIV(self).init_priority,
|
|
RT_SCHED_PRIV(self).init_tick);
|
|
if (!thread)
|
|
{
|
|
goto fail;
|
|
}
|
|
|
|
#ifdef RT_USING_SMP
|
|
RT_SCHED_CTX(self).bind_cpu = lwp->bind_cpu;
|
|
#endif
|
|
thread->cleanup = lwp_cleanup;
|
|
thread->user_entry = RT_NULL;
|
|
thread->user_stack = RT_NULL;
|
|
thread->user_stack_size = 0;
|
|
thread->lwp = (void *)lwp;
|
|
thread->tid = tid;
|
|
|
|
if ((flags & CLONE_SETTLS) == CLONE_SETTLS)
|
|
{
|
|
thread->thread_idr = tls;
|
|
}
|
|
if ((flags & CLONE_PARENT_SETTID) == CLONE_PARENT_SETTID)
|
|
{
|
|
*new_tid = (int)(tid);
|
|
}
|
|
if ((flags & CLONE_CHILD_CLEARTID) == CLONE_CHILD_CLEARTID)
|
|
{
|
|
thread->clear_child_tid = (int *)arg[4];
|
|
}
|
|
|
|
if (lwp->debug)
|
|
{
|
|
rt_thread_control(thread, RT_THREAD_CTRL_BIND_CPU, (void*)0);
|
|
}
|
|
|
|
LWP_LOCK(lwp);
|
|
rt_list_insert_after(&lwp->t_grp, &thread->sibling);
|
|
LWP_UNLOCK(lwp);
|
|
|
|
/* copy origin stack */
|
|
lwp_memcpy(thread->stack_addr, self->stack_addr, thread->stack_size);
|
|
lwp_tid_set_thread(tid, thread);
|
|
arch_set_thread_context(arch_clone_exit,
|
|
(void *)((char *)thread->stack_addr + thread->stack_size),
|
|
user_stack, &thread->sp);
|
|
/* new thread never reach there */
|
|
rt_thread_startup(thread);
|
|
return (long)tid;
|
|
fail:
|
|
lwp_tid_put(tid);
|
|
if (thread)
|
|
{
|
|
rt_thread_delete(thread);
|
|
}
|
|
if (lwp)
|
|
{
|
|
lwp_ref_dec(lwp);
|
|
}
|
|
return GET_ERRNO();
|
|
}
|
|
|
|
rt_weak long sys_clone(void *arg[])
|
|
{
|
|
return _sys_clone(arg);
|
|
}
|
|
|
|
static void lwp_struct_copy(struct rt_lwp *dst, struct rt_lwp *src)
|
|
{
|
|
#ifdef ARCH_MM_MMU
|
|
dst->end_heap = src->end_heap;
|
|
#endif
|
|
dst->lwp_type = src->lwp_type;
|
|
dst->text_entry = src->text_entry;
|
|
dst->text_size = src->text_size;
|
|
dst->data_entry = src->data_entry;
|
|
dst->data_size = src->data_size;
|
|
dst->args = src->args;
|
|
dst->background = src->background;
|
|
dst->tty = src->tty;
|
|
|
|
/* terminal API */
|
|
dst->term_ctrlterm = src->term_ctrlterm;
|
|
|
|
rt_memcpy(dst->cmd, src->cmd, RT_NAME_MAX);
|
|
if (src->exe_file)
|
|
{
|
|
if (dst->exe_file)
|
|
{
|
|
rt_free(dst->exe_file);
|
|
}
|
|
dst->exe_file = strndup(src->exe_file, DFS_PATH_MAX);
|
|
}
|
|
|
|
rt_memcpy(&dst->signal.sig_action, &src->signal.sig_action, sizeof(dst->signal.sig_action));
|
|
rt_memcpy(&dst->signal.sig_action_mask, &src->signal.sig_action_mask, sizeof(dst->signal.sig_action_mask));
|
|
rt_memcpy(&dst->signal.sig_action_nodefer, &src->signal.sig_action_nodefer, sizeof(dst->signal.sig_action_nodefer));
|
|
rt_memcpy(&dst->signal.sig_action_onstack, &src->signal.sig_action_onstack, sizeof(dst->signal.sig_action_onstack));
|
|
rt_memcpy(&dst->signal.sig_action_restart, &dst->signal.sig_action_restart, sizeof(dst->signal.sig_action_restart));
|
|
rt_memcpy(&dst->signal.sig_action_siginfo, &dst->signal.sig_action_siginfo, sizeof(dst->signal.sig_action_siginfo));
|
|
rt_memcpy(&dst->signal.sig_action_nocldstop, &dst->signal.sig_action_nocldstop, sizeof(dst->signal.sig_action_nocldstop));
|
|
rt_memcpy(&dst->signal.sig_action_nocldwait, &dst->signal.sig_action_nocldwait, sizeof(dst->signal.sig_action_nocldwait));
|
|
rt_strcpy(dst->working_directory, src->working_directory);
|
|
}
|
|
|
|
static int lwp_copy_files(struct rt_lwp *dst, struct rt_lwp *src)
|
|
{
|
|
struct dfs_fdtable *dst_fdt;
|
|
struct dfs_fdtable *src_fdt;
|
|
|
|
src_fdt = &src->fdt;
|
|
dst_fdt = &dst->fdt;
|
|
/* init fds */
|
|
dst_fdt->fds = rt_calloc(src_fdt->maxfd, sizeof(void *));
|
|
if (dst_fdt->fds)
|
|
{
|
|
struct dfs_file *d_s;
|
|
int i;
|
|
|
|
dst_fdt->maxfd = src_fdt->maxfd;
|
|
|
|
dfs_file_lock();
|
|
/* dup files */
|
|
for (i = 0; i < src_fdt->maxfd; i++)
|
|
{
|
|
d_s = fdt_get_file(src_fdt, i);
|
|
if (d_s)
|
|
{
|
|
dst_fdt->fds[i] = d_s;
|
|
d_s->ref_count++;
|
|
}
|
|
}
|
|
dfs_file_unlock();
|
|
return 0;
|
|
}
|
|
return -RT_ERROR;
|
|
}
|
|
|
|
sysret_t _sys_fork(void)
|
|
{
|
|
int tid = 0;
|
|
sysret_t falival = 0;
|
|
struct rt_lwp *lwp = RT_NULL;
|
|
struct rt_lwp *self_lwp = RT_NULL;
|
|
rt_thread_t thread = RT_NULL;
|
|
rt_thread_t self_thread = RT_NULL;
|
|
void *user_stack = RT_NULL;
|
|
rt_processgroup_t group;
|
|
|
|
/* new lwp */
|
|
lwp = lwp_create(LWP_CREATE_FLAG_ALLOC_PID);
|
|
if (!lwp)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
/* new tid */
|
|
if ((tid = lwp_tid_get()) == 0)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
/* user space init */
|
|
if (lwp_user_space_init(lwp, 1) != 0)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
self_lwp = lwp_self();
|
|
|
|
/* copy address space of process from this proc to forked one */
|
|
if (lwp_fork_aspace(lwp, self_lwp) != 0)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
/* copy lwp struct data */
|
|
lwp_struct_copy(lwp, self_lwp);
|
|
|
|
/* copy files */
|
|
if (lwp_copy_files(lwp, self_lwp) != 0)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
/* create thread */
|
|
self_thread = rt_thread_self();
|
|
|
|
thread = rt_thread_create(self_thread->parent.name,
|
|
RT_NULL,
|
|
RT_NULL,
|
|
self_thread->stack_size,
|
|
RT_SCHED_PRIV(self_thread).init_priority,
|
|
RT_SCHED_PRIV(self_thread).init_tick);
|
|
if (!thread)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
thread->cleanup = self_thread->cleanup;
|
|
thread->user_entry = self_thread->user_entry;
|
|
thread->user_stack = self_thread->user_stack;
|
|
thread->user_stack_size = self_thread->user_stack_size;
|
|
thread->signal.sigset_mask = self_thread->signal.sigset_mask;
|
|
thread->thread_idr = self_thread->thread_idr;
|
|
thread->clear_child_tid = self_thread->clear_child_tid;
|
|
thread->lwp = (void *)lwp;
|
|
thread->tid = tid;
|
|
|
|
LWP_LOCK(self_lwp);
|
|
/* add thread to lwp process */
|
|
rt_list_insert_after(&lwp->t_grp, &thread->sibling);
|
|
LWP_UNLOCK(self_lwp);
|
|
|
|
lwp_children_register(self_lwp, lwp);
|
|
|
|
/* set pgid and sid */
|
|
group = lwp_pgrp_find(lwp_pgid_get_byprocess(self_lwp));
|
|
if (group)
|
|
{
|
|
lwp_pgrp_insert(group, lwp);
|
|
}
|
|
else
|
|
{
|
|
LOG_W("the process group of pid: %d cannot be found", lwp_pgid_get_byprocess(self_lwp));
|
|
}
|
|
|
|
/* copy kernel stack context from self thread */
|
|
lwp_memcpy(thread->stack_addr, self_thread->stack_addr, self_thread->stack_size);
|
|
lwp_tid_set_thread(tid, thread);
|
|
|
|
/* duplicate user objects */
|
|
lwp_user_object_dup(lwp, self_lwp);
|
|
|
|
user_stack = arch_get_user_sp();
|
|
arch_set_thread_context(arch_fork_exit,
|
|
(void *)((char *)thread->stack_addr + thread->stack_size),
|
|
user_stack, &thread->sp);
|
|
|
|
rt_thread_startup(thread);
|
|
return lwp_to_pid(lwp);
|
|
fail:
|
|
falival = GET_ERRNO();
|
|
|
|
if (tid != 0)
|
|
{
|
|
lwp_tid_put(tid);
|
|
}
|
|
if (thread)
|
|
{
|
|
rt_thread_delete(thread);
|
|
}
|
|
if (lwp)
|
|
{
|
|
lwp_ref_dec(lwp);
|
|
}
|
|
return falival;
|
|
}
|
|
|
|
/* arm needs to wrap fork/clone call to preserved lr & caller saved regs */
|
|
|
|
rt_weak sysret_t sys_fork(void)
|
|
{
|
|
return _sys_fork();
|
|
}
|
|
|
|
rt_weak sysret_t sys_vfork(void)
|
|
{
|
|
return sys_fork();
|
|
}
|
|
|
|
struct process_aux *lwp_argscopy(struct rt_lwp *lwp, int argc, char **argv, char **envp);
|
|
int lwp_load(const char *filename, struct rt_lwp *lwp, uint8_t *load_addr, size_t addr_size, struct process_aux *aux);
|
|
void lwp_user_obj_free(struct rt_lwp *lwp);
|
|
|
|
#define _swap_lwp_data(lwp_used, lwp_new, type, member) \
|
|
do {\
|
|
type tmp;\
|
|
tmp = lwp_used->member;\
|
|
lwp_used->member = lwp_new->member;\
|
|
lwp_new->member = tmp;\
|
|
} while (0)
|
|
|
|
static char *_insert_args(int new_argc, char *new_argv[], struct lwp_args_info *args)
|
|
{
|
|
void *page = NULL;
|
|
int err = 0;
|
|
char **nargv;
|
|
char **nenvp;
|
|
char *p;
|
|
int i, len;
|
|
int nsize;
|
|
|
|
if (new_argc == 0)
|
|
{
|
|
goto quit;
|
|
}
|
|
page = rt_pages_alloc_ext(0, PAGE_ANY_AVAILABLE); /* 1 page */
|
|
if (!page)
|
|
{
|
|
goto quit;
|
|
}
|
|
|
|
nsize = new_argc * sizeof(char *);
|
|
for (i = 0; i < new_argc; i++)
|
|
{
|
|
nsize += lwp_strlen(lwp_self(), new_argv[i]) + 1;
|
|
}
|
|
if (nsize + args->size > ARCH_PAGE_SIZE)
|
|
{
|
|
err = 1;
|
|
goto quit;
|
|
}
|
|
nargv = (char **)page;
|
|
nenvp = nargv + args->argc + new_argc + 1;
|
|
p = (char *)(nenvp + args->envc + 1);
|
|
/* insert argv */
|
|
for (i = 0; i < new_argc; i++)
|
|
{
|
|
nargv[i] = p;
|
|
len = lwp_strlen(lwp_self(), new_argv[i]) + 1;
|
|
lwp_memcpy(p, new_argv[i], len);
|
|
p += len;
|
|
}
|
|
/* copy argv */
|
|
nargv += new_argc;
|
|
for (i = 0; i < args->argc; i++)
|
|
{
|
|
nargv[i] = p;
|
|
len = lwp_strlen(lwp_self(), args->argv[i]) + 1;
|
|
lwp_memcpy(p, args->argv[i], len);
|
|
p += len;
|
|
}
|
|
nargv[i] = NULL;
|
|
/* copy envp */
|
|
for (i = 0; i < args->envc; i++)
|
|
{
|
|
nenvp[i] = p;
|
|
len = lwp_strlen(lwp_self(), args->envp[i]) + 1;
|
|
lwp_memcpy(p, args->envp[i], len);
|
|
p += len;
|
|
}
|
|
nenvp[i] = NULL;
|
|
|
|
/* update args */
|
|
args->argv = (char **)page;
|
|
args->argc = args->argc + new_argc;
|
|
args->envp = args->argv + args->argc + 1;
|
|
/* args->envc no change */
|
|
args->size = args->size + nsize;
|
|
|
|
quit:
|
|
if (err && page)
|
|
{
|
|
rt_pages_free(page, 0);
|
|
page = NULL;
|
|
}
|
|
return page;
|
|
}
|
|
|
|
#define INTERP_BUF_SIZE 128
|
|
static char *_load_script(const char *filename, void *old_page, struct lwp_args_info *args)
|
|
{
|
|
char *new_page = NULL;
|
|
int fd = -RT_ERROR;
|
|
int len;
|
|
char interp[INTERP_BUF_SIZE];
|
|
char *cp;
|
|
char *i_name;
|
|
char *i_arg;
|
|
|
|
fd = open(filename, O_BINARY | O_RDONLY, 0);
|
|
if (fd < 0)
|
|
{
|
|
goto quit;
|
|
}
|
|
len = read(fd, interp, INTERP_BUF_SIZE);
|
|
if (len < 2)
|
|
{
|
|
goto quit;
|
|
}
|
|
/*
|
|
* match find file header the first line.
|
|
* eg: #!/bin/sh
|
|
*/
|
|
if ((interp[0] != '#') || (interp[1] != '!'))
|
|
{
|
|
goto quit;
|
|
}
|
|
|
|
if (len == INTERP_BUF_SIZE)
|
|
{
|
|
len--;
|
|
}
|
|
interp[len] = '\0';
|
|
|
|
if ((cp = strchr(interp, '\n')) == NULL)
|
|
{
|
|
cp = interp + INTERP_BUF_SIZE - 1;
|
|
}
|
|
*cp = '\0';
|
|
while (cp > interp)
|
|
{
|
|
cp--;
|
|
if ((*cp == ' ') || (*cp == '\t'))
|
|
{
|
|
*cp = '\0';
|
|
}
|
|
else
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
for (cp = interp + 2; (*cp == ' ') || (*cp == '\t'); cp++)
|
|
{
|
|
/* nothing */
|
|
}
|
|
if (*cp == '\0')
|
|
{
|
|
goto quit; /* No interpreter name found */
|
|
}
|
|
i_name = cp;
|
|
i_arg = NULL;
|
|
for (; *cp && (*cp != ' ') && (*cp != '\t'); cp++)
|
|
{
|
|
/* nothing */
|
|
}
|
|
while ((*cp == ' ') || (*cp == '\t'))
|
|
{
|
|
*cp++ = '\0';
|
|
}
|
|
if (*cp)
|
|
{
|
|
i_arg = cp;
|
|
}
|
|
|
|
if (i_arg)
|
|
{
|
|
new_page = _insert_args(1, &i_arg, args);
|
|
if (!new_page)
|
|
{
|
|
goto quit;
|
|
}
|
|
rt_pages_free(old_page, 0);
|
|
old_page = new_page;
|
|
}
|
|
new_page = _insert_args(1, &i_name, args);
|
|
if (!new_page)
|
|
{
|
|
goto quit;
|
|
}
|
|
rt_pages_free(old_page, 0);
|
|
|
|
quit:
|
|
if (fd >= 0)
|
|
{
|
|
close(fd);
|
|
}
|
|
return new_page;
|
|
}
|
|
|
|
int load_ldso(struct rt_lwp *lwp, char *exec_name, char *const argv[], char *const envp[])
|
|
{
|
|
int ret = -1;
|
|
int i;
|
|
void *page;
|
|
void *new_page;
|
|
int argc = 0;
|
|
int envc = 0;
|
|
int size;
|
|
char **kargv;
|
|
char **kenvp;
|
|
size_t len;
|
|
char *p;
|
|
char *i_arg;
|
|
struct lwp_args_info args_info;
|
|
struct process_aux *aux;
|
|
|
|
size = sizeof(char *);
|
|
if (argv)
|
|
{
|
|
while (1)
|
|
{
|
|
if (!argv[argc])
|
|
{
|
|
break;
|
|
}
|
|
len = lwp_strlen(lwp, (const char *)argv[argc]);
|
|
size += sizeof(char *) + len + 1;
|
|
argc++;
|
|
}
|
|
}
|
|
if (envp)
|
|
{
|
|
while (1)
|
|
{
|
|
if (!envp[envc])
|
|
{
|
|
break;
|
|
}
|
|
len = lwp_strlen(lwp, (const char *)envp[envc]);
|
|
size += sizeof(char *) + len + 1;
|
|
envc++;
|
|
}
|
|
}
|
|
|
|
page = rt_pages_alloc_ext(0, PAGE_ANY_AVAILABLE); /* 1 page */
|
|
if (!page)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto quit;
|
|
}
|
|
kargv = (char **)page;
|
|
kenvp = kargv + argc + 1;
|
|
p = (char *)(kenvp + envc + 1);
|
|
/* copy argv */
|
|
if (argv)
|
|
{
|
|
for (i = 0; i < argc; i++)
|
|
{
|
|
kargv[i] = p;
|
|
len = lwp_strlen(lwp, argv[i]) + 1;
|
|
lwp_memcpy(p, argv[i], len);
|
|
p += len;
|
|
}
|
|
kargv[i] = NULL;
|
|
}
|
|
/* copy envp */
|
|
if (envp)
|
|
{
|
|
for (i = 0; i < envc; i++)
|
|
{
|
|
kenvp[i] = p;
|
|
len = lwp_strlen(lwp, envp[i]) + 1;
|
|
lwp_memcpy(p, envp[i], len);
|
|
p += len;
|
|
}
|
|
kenvp[i] = NULL;
|
|
}
|
|
|
|
args_info.argc = argc;
|
|
args_info.argv = kargv;
|
|
args_info.envc = envc;
|
|
args_info.envp = kenvp;
|
|
args_info.size = size;
|
|
|
|
new_page = _insert_args(1, &exec_name, &args_info);
|
|
if (!new_page)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto quit;
|
|
}
|
|
rt_pages_free(page, 0);
|
|
page = new_page;
|
|
|
|
i_arg = "-e";
|
|
new_page = _insert_args(1, &i_arg, &args_info);
|
|
if (!new_page)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto quit;
|
|
}
|
|
rt_pages_free(page, 0);
|
|
page = new_page;
|
|
|
|
i_arg = "ld.so";
|
|
new_page = _insert_args(1, &i_arg, &args_info);
|
|
if (!new_page)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto quit;
|
|
}
|
|
rt_pages_free(page, 0);
|
|
page = new_page;
|
|
|
|
if ((aux = lwp_argscopy(lwp, args_info.argc, args_info.argv, args_info.envp)) == NULL)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto quit;
|
|
}
|
|
|
|
ret = lwp_load("/lib/ld.so", lwp, RT_NULL, 0, aux);
|
|
|
|
rt_strncpy(lwp->cmd, exec_name, RT_NAME_MAX - 1);
|
|
quit:
|
|
if (page)
|
|
{
|
|
rt_pages_free(page, 0);
|
|
}
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_execve(const char *path, char *const argv[], char *const envp[])
|
|
{
|
|
int ret = -1;
|
|
int argc = 0;
|
|
int envc = 0;
|
|
void *page = NULL;
|
|
void *new_page;
|
|
int size = 0;
|
|
size_t len;
|
|
char **kargv;
|
|
char **kenvp;
|
|
char *p;
|
|
struct rt_lwp *new_lwp = NULL;
|
|
struct rt_lwp *lwp;
|
|
int uni_thread;
|
|
rt_thread_t thread;
|
|
struct process_aux *aux;
|
|
int i;
|
|
struct lwp_args_info args_info;
|
|
|
|
if (access(path, X_OK) != 0)
|
|
{
|
|
return -EACCES;
|
|
}
|
|
|
|
lwp = lwp_self();
|
|
thread = rt_thread_self();
|
|
uni_thread = 1;
|
|
|
|
LWP_LOCK(lwp);
|
|
if (lwp->t_grp.prev != &thread->sibling)
|
|
{
|
|
uni_thread = 0;
|
|
}
|
|
if (lwp->t_grp.next != &thread->sibling)
|
|
{
|
|
uni_thread = 0;
|
|
}
|
|
LWP_UNLOCK(lwp);
|
|
|
|
if (!uni_thread)
|
|
{
|
|
SET_ERRNO(EINVAL);
|
|
goto quit;
|
|
}
|
|
|
|
len = lwp_user_strlen(path);
|
|
if (len <= 0)
|
|
{
|
|
SET_ERRNO(EFAULT);
|
|
goto quit;
|
|
}
|
|
|
|
size += sizeof(char *);
|
|
if (argv)
|
|
{
|
|
while (1)
|
|
{
|
|
if (!lwp_user_accessable((void *)(argv + argc), sizeof(char *)))
|
|
{
|
|
SET_ERRNO(EFAULT);
|
|
goto quit;
|
|
}
|
|
if (!argv[argc])
|
|
{
|
|
break;
|
|
}
|
|
len = lwp_user_strlen((const char *)argv[argc]);
|
|
if (len < 0)
|
|
{
|
|
SET_ERRNO(EFAULT);
|
|
goto quit;
|
|
}
|
|
size += sizeof(char *) + len + 1;
|
|
argc++;
|
|
}
|
|
}
|
|
size += sizeof(char *);
|
|
if (envp)
|
|
{
|
|
while (1)
|
|
{
|
|
if (!lwp_user_accessable((void *)(envp + envc), sizeof(char *)))
|
|
{
|
|
SET_ERRNO(EFAULT);
|
|
goto quit;
|
|
}
|
|
if (!envp[envc])
|
|
{
|
|
break;
|
|
}
|
|
len = lwp_user_strlen((const char *)envp[envc]);
|
|
if (len < 0)
|
|
{
|
|
SET_ERRNO(EFAULT);
|
|
goto quit;
|
|
}
|
|
size += sizeof(char *) + len + 1;
|
|
envc++;
|
|
}
|
|
}
|
|
if (size > ARCH_PAGE_SIZE)
|
|
{
|
|
SET_ERRNO(EINVAL);
|
|
goto quit;
|
|
}
|
|
page = rt_pages_alloc_ext(0, PAGE_ANY_AVAILABLE); /* 1 page */
|
|
if (!page)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto quit;
|
|
}
|
|
|
|
kargv = (char **)page;
|
|
kenvp = kargv + argc + 1;
|
|
p = (char *)(kenvp + envc + 1);
|
|
/* copy argv */
|
|
if (argv)
|
|
{
|
|
for (i = 0; i < argc; i++)
|
|
{
|
|
kargv[i] = p;
|
|
len = lwp_user_strlen(argv[i]) + 1;
|
|
lwp_memcpy(p, argv[i], len);
|
|
p += len;
|
|
}
|
|
kargv[i] = NULL;
|
|
}
|
|
/* copy envp */
|
|
if (envp)
|
|
{
|
|
for (i = 0; i < envc; i++)
|
|
{
|
|
kenvp[i] = p;
|
|
len = lwp_user_strlen(envp[i]) + 1;
|
|
lwp_memcpy(p, envp[i], len);
|
|
p += len;
|
|
}
|
|
kenvp[i] = NULL;
|
|
}
|
|
|
|
/* alloc new lwp to operation */
|
|
new_lwp = lwp_create(LWP_CREATE_FLAG_NONE);
|
|
if (!new_lwp)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto quit;
|
|
}
|
|
|
|
ret = lwp_user_space_init(new_lwp, 0);
|
|
if (ret != 0)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto quit;
|
|
}
|
|
/* file is a script ? */
|
|
args_info.argc = argc;
|
|
args_info.argv = kargv;
|
|
args_info.envc = envc;
|
|
args_info.envp = kenvp;
|
|
args_info.size = size;
|
|
while (1)
|
|
{
|
|
new_page = _load_script(path, page, &args_info);
|
|
if (!new_page)
|
|
{
|
|
break;
|
|
}
|
|
|
|
page = new_page;
|
|
path = args_info.argv[0];
|
|
}
|
|
|
|
/* now load elf */
|
|
if ((aux = lwp_argscopy(new_lwp, args_info.argc, args_info.argv, args_info.envp)) == NULL)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto quit;
|
|
}
|
|
ret = lwp_load(path, new_lwp, RT_NULL, 0, aux);
|
|
if (ret == 1)
|
|
{
|
|
/* dynamic */
|
|
lwp_unmap_user(new_lwp, (void *)(USER_VADDR_TOP - ARCH_PAGE_SIZE));
|
|
ret = load_ldso(new_lwp, (char *)path, args_info.argv, args_info.envp);
|
|
}
|
|
if (ret == RT_EOK)
|
|
{
|
|
int off = 0;
|
|
int last_backslash = 0;
|
|
char *run_name = args_info.argv[0];
|
|
|
|
/* clear all user objects */
|
|
lwp_user_object_clear(lwp);
|
|
|
|
/* find last \ or / */
|
|
while (1)
|
|
{
|
|
char c = run_name[off++];
|
|
|
|
if (c == '\0')
|
|
{
|
|
break;
|
|
}
|
|
if (c == '\\' || c == '/')
|
|
{
|
|
last_backslash = off;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set thread name and swap the data of lwp and new_lwp.
|
|
* Since no other threads can access the lwp field, it't uneccessary to
|
|
* take a lock here
|
|
*/
|
|
RT_ASSERT(rt_list_entry(lwp->t_grp.prev, struct rt_thread, sibling) == thread);
|
|
|
|
strncpy(thread->parent.name, run_name + last_backslash, RT_NAME_MAX - 1);
|
|
strncpy(lwp->cmd, new_lwp->cmd, RT_NAME_MAX);
|
|
rt_free(lwp->exe_file);
|
|
lwp->exe_file = strndup(new_lwp->exe_file, DFS_PATH_MAX);
|
|
|
|
rt_pages_free(page, 0);
|
|
|
|
#ifdef ARCH_MM_MMU
|
|
_swap_lwp_data(lwp, new_lwp, struct rt_aspace *, aspace);
|
|
|
|
_swap_lwp_data(lwp, new_lwp, size_t, end_heap);
|
|
#endif
|
|
_swap_lwp_data(lwp, new_lwp, uint8_t, lwp_type);
|
|
_swap_lwp_data(lwp, new_lwp, void *, text_entry);
|
|
_swap_lwp_data(lwp, new_lwp, uint32_t, text_size);
|
|
_swap_lwp_data(lwp, new_lwp, void *, data_entry);
|
|
_swap_lwp_data(lwp, new_lwp, uint32_t, data_size);
|
|
|
|
_swap_lwp_data(lwp, new_lwp, void *, args);
|
|
|
|
lwp_thread_signal_detach(&thread->signal);
|
|
rt_memset(&thread->signal.sigset_mask, 0, sizeof(thread->signal.sigset_mask));
|
|
|
|
lwp_signal_detach(&lwp->signal);
|
|
lwp_signal_init(&lwp->signal);
|
|
|
|
/* to do: clsoe files with flag CLOEXEC, recy sub-thread */
|
|
|
|
lwp_aspace_switch(thread);
|
|
|
|
lwp_ref_dec(new_lwp);
|
|
arch_start_umode(lwp->args,
|
|
lwp->text_entry,
|
|
(void*)USER_STACK_VEND,
|
|
(char *)thread->stack_addr + thread->stack_size);
|
|
/* never reach here */
|
|
}
|
|
return -EINVAL;
|
|
quit:
|
|
if (page)
|
|
{
|
|
rt_pages_free(page, 0);
|
|
}
|
|
if (new_lwp)
|
|
{
|
|
lwp_ref_dec(new_lwp);
|
|
}
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
#endif /* ARCH_MM_MMU */
|
|
|
|
sysret_t sys_thread_delete(rt_thread_t thread)
|
|
{
|
|
#ifdef ARCH_MM_MMU
|
|
return rt_thread_delete(thread);
|
|
#else
|
|
sysret_t ret = 0;
|
|
|
|
if(thread->parent.type != RT_Object_Class_Thread)
|
|
{
|
|
ret = -EINVAL;
|
|
goto __exit;
|
|
}
|
|
|
|
ret = rt_thread_delete(thread);
|
|
|
|
if (rt_thread_self() == thread)
|
|
{
|
|
rt_schedule();
|
|
}
|
|
|
|
__exit:
|
|
return ret;
|
|
#endif
|
|
}
|
|
|
|
sysret_t sys_thread_startup(rt_thread_t thread)
|
|
{
|
|
return rt_thread_startup(thread);
|
|
}
|
|
|
|
rt_thread_t sys_thread_self(void)
|
|
{
|
|
return rt_thread_self();
|
|
}
|
|
|
|
/* sys channel */
|
|
|
|
sysret_t sys_channel_open(const char *name, int flags)
|
|
{
|
|
rt_size_t ret = 0;
|
|
char *kname = RT_NULL;
|
|
int len = 0;
|
|
|
|
len = lwp_user_strlen(name);
|
|
if (len <= 0)
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
kname = (char *)kmem_get(len + 1);
|
|
if (!kname)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (lwp_get_from_user(kname, (void *)name, len + 1) != (len + 1))
|
|
{
|
|
kmem_put(kname);
|
|
return -EFAULT;
|
|
}
|
|
|
|
ret = lwp_channel_open(FDT_TYPE_LWP, kname, flags);
|
|
|
|
kmem_put(kname);
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_channel_close(int fd)
|
|
{
|
|
return lwp_channel_close(FDT_TYPE_LWP, fd);
|
|
}
|
|
|
|
sysret_t sys_channel_send(int fd, rt_channel_msg_t data)
|
|
{
|
|
rt_size_t ret = 0;
|
|
rt_channel_msg_t kdata = RT_NULL;
|
|
|
|
if (!lwp_user_accessable((void *)data, sizeof(*data)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
kdata = kmem_get(sizeof(*data));
|
|
if (kdata == RT_NULL)
|
|
return -ENOMEM;
|
|
|
|
if (lwp_get_from_user(kdata, data, sizeof(*kdata)) != sizeof(*kdata))
|
|
{
|
|
kmem_put(kdata);
|
|
return -EFAULT;
|
|
}
|
|
|
|
ret = lwp_channel_send(FDT_TYPE_LWP, fd, kdata);
|
|
|
|
kmem_put(kdata);
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_channel_send_recv_timeout(int fd, rt_channel_msg_t data, rt_channel_msg_t data_ret, rt_int32_t time)
|
|
{
|
|
rt_size_t ret = 0;
|
|
rt_channel_msg_t kdata = RT_NULL;
|
|
rt_channel_msg_t kdata_ret = RT_NULL;
|
|
|
|
if (!lwp_user_accessable((void *)data, sizeof(*data)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
kdata = kmem_get(sizeof(*data));
|
|
if (kdata == RT_NULL)
|
|
return -ENOMEM;
|
|
|
|
if (lwp_get_from_user(kdata, data, sizeof(*kdata)) != sizeof(*kdata))
|
|
{
|
|
kmem_put(kdata);
|
|
return -EFAULT;
|
|
}
|
|
|
|
kdata_ret = kmem_get(sizeof(*data_ret));
|
|
if (kdata_ret == RT_NULL)
|
|
return -ENOMEM;
|
|
|
|
ret = lwp_channel_send_recv_timeout(FDT_TYPE_LWP, fd, kdata, kdata_ret, time);
|
|
|
|
lwp_put_to_user(data_ret, kdata_ret, sizeof(*kdata_ret));
|
|
kmem_put(kdata);
|
|
kmem_put(kdata_ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_channel_reply(int fd, rt_channel_msg_t data)
|
|
{
|
|
rt_size_t ret = 0;
|
|
rt_channel_msg_t kdata = RT_NULL;
|
|
|
|
if (!lwp_user_accessable((void *)data, sizeof(*data)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
kdata = kmem_get(sizeof(*data));
|
|
if (kdata == RT_NULL)
|
|
return -ENOMEM;
|
|
|
|
if (lwp_get_from_user(kdata, data, sizeof(*kdata)) != sizeof(*data))
|
|
{
|
|
kmem_put(kdata);
|
|
return -EFAULT;
|
|
}
|
|
|
|
ret = lwp_channel_reply(FDT_TYPE_LWP, fd, kdata);
|
|
|
|
kmem_put(kdata);
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_channel_recv_timeout(int fd, rt_channel_msg_t data, rt_int32_t time)
|
|
{
|
|
rt_size_t ret = 0;
|
|
rt_channel_msg_t kdata = RT_NULL;
|
|
|
|
kdata = kmem_get(sizeof(*data));
|
|
if (kdata == RT_NULL)
|
|
return -ENOMEM;
|
|
|
|
ret = lwp_channel_recv_timeout(FDT_TYPE_LWP, fd, kdata, time);
|
|
|
|
lwp_put_to_user(data, kdata, sizeof(*kdata));
|
|
kmem_put(kdata);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static struct rt_semaphore critical_lock;
|
|
|
|
static int critical_init(void)
|
|
{
|
|
rt_sem_init(&critical_lock, "ct_lock", 1, RT_IPC_FLAG_FIFO);
|
|
return 0;
|
|
}
|
|
INIT_DEVICE_EXPORT(critical_init);
|
|
|
|
void sys_enter_critical(void)
|
|
{
|
|
rt_sem_take(&critical_lock, RT_WAITING_FOREVER);
|
|
}
|
|
|
|
void sys_exit_critical(void)
|
|
{
|
|
rt_sem_release(&critical_lock);
|
|
}
|
|
|
|
/* syscall: "sys_log" ret: "int" args: "const char*" "size" */
|
|
static int __sys_log_enable = 0;
|
|
static int sys_log_enable(int argc, char** argv)
|
|
{
|
|
if (argc == 1)
|
|
{
|
|
rt_kprintf("sys_log = %d\n", __sys_log_enable);
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
__sys_log_enable = atoi(argv[1]);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
MSH_CMD_EXPORT_ALIAS(sys_log_enable, sys_log, sys_log 1(enable)/0(disable));
|
|
|
|
sysret_t sys_log(const char* log, int size)
|
|
{
|
|
char *klog = RT_NULL;
|
|
rt_device_t console = RT_NULL;
|
|
|
|
if (!lwp_user_accessable((void *)log, size))
|
|
return -EFAULT;
|
|
|
|
klog = kmem_get(size);
|
|
if (klog == RT_NULL)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (lwp_get_from_user((void *)klog, (void *)log, size) != size)
|
|
{
|
|
kmem_put(klog);
|
|
return -EINVAL;
|
|
}
|
|
|
|
console = rt_console_get_device();
|
|
|
|
if (console && __sys_log_enable)
|
|
{
|
|
rt_device_write(console, -1, klog, size);
|
|
}
|
|
|
|
kmem_put(klog);
|
|
|
|
return 0;
|
|
}
|
|
|
|
sysret_t sys_stat(const char *file, struct stat *buf)
|
|
{
|
|
int ret = 0;
|
|
size_t len;
|
|
size_t copy_len;
|
|
char *copy_path;
|
|
struct stat statbuff = {0};
|
|
|
|
if (!lwp_user_accessable((void *)buf, sizeof(struct stat)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
len = lwp_user_strlen(file);
|
|
if (len <= 0)
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
copy_path = (char*)rt_malloc(len + 1);
|
|
if (!copy_path)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
copy_len = lwp_get_from_user(copy_path, (void*)file, len);
|
|
if (copy_len == 0)
|
|
{
|
|
rt_free(copy_path);
|
|
return -EFAULT;
|
|
}
|
|
copy_path[copy_len] = '\0';
|
|
|
|
ret = _SYS_WRAP(stat(copy_path, &statbuff));
|
|
rt_free(copy_path);
|
|
|
|
if (ret == 0)
|
|
{
|
|
lwp_put_to_user(buf, &statbuff, sizeof statbuff);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_lstat(const char *file, struct stat *buf)
|
|
{
|
|
int ret = 0;
|
|
size_t len;
|
|
size_t copy_len;
|
|
char *copy_path;
|
|
struct stat statbuff = {0};
|
|
|
|
if (!lwp_user_accessable((void *)buf, sizeof(struct stat)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
len = lwp_user_strlen(file);
|
|
if (len <= 0)
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
copy_path = (char*)rt_malloc(len + 1);
|
|
if (!copy_path)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
copy_len = lwp_get_from_user(copy_path, (void*)file, len);
|
|
if (copy_len == 0)
|
|
{
|
|
rt_free(copy_path);
|
|
return -EFAULT;
|
|
}
|
|
copy_path[copy_len] = '\0';
|
|
#ifdef RT_USING_DFS_V2
|
|
ret = _SYS_WRAP(dfs_file_lstat(copy_path, &statbuff));
|
|
#else
|
|
ret = _SYS_WRAP(stat(copy_path, &statbuff));
|
|
#endif
|
|
rt_free(copy_path);
|
|
|
|
if (ret == 0)
|
|
{
|
|
lwp_put_to_user(buf, &statbuff, sizeof statbuff);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_notimpl(void)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
uint32_t sys_hw_interrupt_disable(void)
|
|
{
|
|
return rt_hw_interrupt_disable();
|
|
}
|
|
|
|
void sys_hw_interrupt_enable(uint32_t level)
|
|
{
|
|
rt_hw_interrupt_enable(level);
|
|
}
|
|
|
|
#ifdef ARCH_MM_MMU
|
|
sysret_t sys_shmget(size_t key, size_t size, int create)
|
|
{
|
|
return lwp_shmget(key, size, create);
|
|
}
|
|
|
|
sysret_t sys_shmrm(int id)
|
|
{
|
|
return lwp_shmrm(id);
|
|
}
|
|
|
|
void* sys_shmat(int id, void* shm_vaddr)
|
|
{
|
|
return lwp_shmat(id, shm_vaddr);
|
|
}
|
|
|
|
sysret_t sys_shmdt(void* shm_vaddr)
|
|
{
|
|
return lwp_shmdt(shm_vaddr);
|
|
}
|
|
#elif defined RT_LWP_USING_SHM
|
|
void *sys_shm_alloc(int size)
|
|
{
|
|
if (size < 0)
|
|
{
|
|
return RT_NULL;
|
|
}
|
|
return lwp_shm_alloc((rt_size_t)size);
|
|
}
|
|
|
|
void *sys_shm_retain(void *mem)
|
|
{
|
|
if (!lwp_user_accessable(mem, sizeof (void *)))
|
|
{
|
|
return RT_NULL;
|
|
}
|
|
return lwp_shm_retain(mem);
|
|
}
|
|
|
|
sysret_t sys_shm_free(void *mem)
|
|
{
|
|
if (!lwp_user_accessable(mem, sizeof (void *)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
lwp_shm_free(mem);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/* device interfaces */
|
|
sysret_t sys_device_init(rt_device_t dev)
|
|
{
|
|
return rt_device_init(dev);
|
|
}
|
|
|
|
sysret_t sys_device_register(rt_device_t dev, const char *name, rt_uint16_t flags)
|
|
{
|
|
return rt_device_register(dev, name, flags);
|
|
}
|
|
|
|
sysret_t sys_device_control(rt_device_t dev, int cmd, void *arg)
|
|
{
|
|
return rt_device_control(dev, cmd, arg);
|
|
}
|
|
|
|
rt_device_t sys_device_find(const char* name)
|
|
{
|
|
return rt_device_find(name);
|
|
}
|
|
|
|
sysret_t sys_device_open(rt_device_t dev, rt_uint16_t oflag)
|
|
{
|
|
return rt_device_open(dev, oflag);
|
|
}
|
|
|
|
sysret_t sys_device_close(rt_device_t dev)
|
|
{
|
|
return rt_device_close(dev);
|
|
}
|
|
|
|
rt_ssize_t sys_device_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size)
|
|
{
|
|
return rt_device_read(dev, pos, buffer, size);
|
|
}
|
|
|
|
rt_ssize_t sys_device_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
|
|
{
|
|
return rt_device_write(dev, pos, buffer, size);
|
|
}
|
|
|
|
#ifdef RT_USING_SAL
|
|
/* network interfaces */
|
|
sysret_t sys_accept(int socket, struct musl_sockaddr *addr, socklen_t *addrlen)
|
|
{
|
|
int ret = -1;
|
|
struct sockaddr ksa;
|
|
struct musl_sockaddr kmusladdr;
|
|
socklen_t uaddrlen;
|
|
socklen_t kaddrlen;
|
|
|
|
if (addr)
|
|
{
|
|
if (!lwp_user_accessable(addrlen, sizeof(socklen_t)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
lwp_get_from_user(&uaddrlen, addrlen, sizeof(socklen_t));
|
|
if (!uaddrlen)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!lwp_user_accessable(addr, uaddrlen))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
}
|
|
|
|
kaddrlen = sizeof(struct sockaddr);
|
|
ret = accept(socket, &ksa, &kaddrlen);
|
|
if (ret >= 0)
|
|
{
|
|
if (addr)
|
|
{
|
|
sockaddr_tomusl(&ksa, &kmusladdr);
|
|
if (uaddrlen > sizeof(struct musl_sockaddr))
|
|
{
|
|
uaddrlen = sizeof(struct musl_sockaddr);
|
|
}
|
|
lwp_put_to_user(addr, &kmusladdr, uaddrlen);
|
|
lwp_put_to_user(addrlen, &uaddrlen, sizeof(socklen_t));
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_bind(int socket, const struct musl_sockaddr *name, socklen_t namelen)
|
|
{
|
|
rt_err_t ret = 0;
|
|
struct sockaddr sa;
|
|
struct sockaddr_un un_addr;
|
|
struct musl_sockaddr kname;
|
|
rt_uint16_t family = 0;
|
|
|
|
if (!lwp_user_accessable((void *)name, namelen))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
lwp_get_from_user(&family, (void *)name, 2);
|
|
if (family == AF_UNIX)
|
|
{
|
|
if (!lwp_user_accessable((void *)name, sizeof(struct sockaddr_un)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
lwp_get_from_user(&un_addr, (void *)name, sizeof(struct sockaddr_un));
|
|
ret = bind(socket, (struct sockaddr *)&un_addr, namelen);
|
|
}
|
|
else if (family == AF_NETLINK)
|
|
{
|
|
if (!lwp_user_accessable((void *)name, namelen))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
lwp_get_from_user(&sa, (void *)name, namelen);
|
|
|
|
ret = bind(socket, &sa, namelen);
|
|
}
|
|
else
|
|
{
|
|
lwp_get_from_user(&kname, (void *)name, namelen);
|
|
sockaddr_tolwip(&kname, &sa);
|
|
ret = bind(socket, &sa, namelen);
|
|
}
|
|
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_shutdown(int socket, int how)
|
|
{
|
|
return shutdown(socket, how);
|
|
}
|
|
|
|
sysret_t sys_getpeername(int socket, struct musl_sockaddr *name, socklen_t *namelen)
|
|
{
|
|
int ret = -1;
|
|
struct sockaddr sa;
|
|
struct musl_sockaddr kname;
|
|
socklen_t unamelen;
|
|
socklen_t knamelen;
|
|
|
|
if (!lwp_user_accessable(namelen, sizeof(socklen_t)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
lwp_get_from_user(&unamelen, namelen, sizeof(socklen_t));
|
|
if (!unamelen)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!lwp_user_accessable(name, unamelen))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
knamelen = sizeof(struct sockaddr);
|
|
ret = getpeername(socket, &sa, &knamelen);
|
|
|
|
if (ret == 0)
|
|
{
|
|
sockaddr_tomusl(&sa, &kname);
|
|
if (unamelen > sizeof(struct musl_sockaddr))
|
|
{
|
|
unamelen = sizeof(struct musl_sockaddr);
|
|
}
|
|
lwp_put_to_user(name, &kname, unamelen);
|
|
lwp_put_to_user(namelen, &unamelen, sizeof(socklen_t));
|
|
}
|
|
else
|
|
{
|
|
ret = GET_ERRNO();
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_getsockname(int socket, struct musl_sockaddr *name, socklen_t *namelen)
|
|
{
|
|
int ret = -1;
|
|
struct sockaddr sa;
|
|
struct musl_sockaddr kname;
|
|
socklen_t unamelen;
|
|
socklen_t knamelen;
|
|
|
|
if (!lwp_user_accessable(namelen, sizeof (socklen_t)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
lwp_get_from_user(&unamelen, namelen, sizeof (socklen_t));
|
|
if (!unamelen)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!lwp_user_accessable(name, unamelen))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
knamelen = sizeof(struct sockaddr);
|
|
ret = getsockname(socket, &sa, &knamelen);
|
|
if (ret == 0)
|
|
{
|
|
sockaddr_tomusl(&sa, &kname);
|
|
if (unamelen > sizeof(struct musl_sockaddr))
|
|
{
|
|
unamelen = sizeof(struct musl_sockaddr);
|
|
}
|
|
lwp_put_to_user(name, &kname, unamelen);
|
|
lwp_put_to_user(namelen, &unamelen, sizeof(socklen_t));
|
|
}
|
|
else
|
|
{
|
|
ret = GET_ERRNO();
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_getsockopt(int socket, int level, int optname, void *optval, socklen_t *optlen)
|
|
{
|
|
int ret = 0;
|
|
socklen_t koptlen = 0;
|
|
void *koptval = RT_NULL;
|
|
|
|
if (!lwp_user_accessable((void *)optlen, sizeof(uint32_t)))
|
|
return -EFAULT;
|
|
|
|
if (lwp_get_from_user(&koptlen, optlen, sizeof(uint32_t)) != sizeof(uint32_t))
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!lwp_user_accessable((void *)optval, koptlen))
|
|
return -EFAULT;
|
|
|
|
koptval = kmem_get(koptlen);
|
|
if (koptval == RT_NULL)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (lwp_get_from_user(koptval, optval, koptlen) != koptlen)
|
|
{
|
|
kmem_put(koptval);
|
|
return -EINVAL;
|
|
}
|
|
|
|
convert_sockopt(&level, &optname);
|
|
ret = getsockopt(socket, level, optname, koptval, &koptlen);
|
|
|
|
lwp_put_to_user((void *)optval, koptval, koptlen);
|
|
lwp_put_to_user((void *)optlen, &koptlen, sizeof(uint32_t));
|
|
|
|
kmem_put(koptval);
|
|
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_setsockopt(int socket, int level, int optname, const void *optval, socklen_t optlen)
|
|
{
|
|
int ret;
|
|
void *koptval = RT_NULL;
|
|
|
|
if (!lwp_user_accessable((void *)optval, optlen))
|
|
return -EFAULT;
|
|
|
|
koptval = kmem_get(optlen);
|
|
if (koptval == RT_NULL)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (lwp_get_from_user(koptval, (void *)optval, optlen) != optlen)
|
|
{
|
|
kmem_put(koptval);
|
|
return -EINVAL;
|
|
}
|
|
|
|
convert_sockopt(&level, &optname);
|
|
ret = setsockopt(socket, level, optname, koptval, optlen);
|
|
|
|
kmem_put(koptval);
|
|
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_connect(int socket, const struct musl_sockaddr *name, socklen_t namelen)
|
|
{
|
|
int ret = 0;
|
|
rt_uint16_t family = 0;
|
|
struct sockaddr sa;
|
|
struct musl_sockaddr kname;
|
|
struct sockaddr_un addr_un;
|
|
|
|
if (!lwp_user_accessable((void *)name, namelen))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
lwp_get_from_user(&family, (void *)name, 2);
|
|
if (family == AF_UNIX)
|
|
{
|
|
if (!lwp_user_accessable((void *)name, sizeof(struct sockaddr_un)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
lwp_get_from_user(&addr_un, (void *)name, sizeof(struct sockaddr_un));
|
|
ret = connect(socket, (struct sockaddr *)(&addr_un), namelen);
|
|
}
|
|
else
|
|
{
|
|
lwp_get_from_user(&kname, (void *)name, namelen);
|
|
sockaddr_tolwip(&kname, &sa);
|
|
ret = connect(socket, &sa, namelen);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_listen(int socket, int backlog)
|
|
{
|
|
return listen(socket, backlog);
|
|
}
|
|
|
|
#define MUSLC_MSG_OOB 0x0001
|
|
#define MUSLC_MSG_PEEK 0x0002
|
|
#define MUSLC_MSG_DONTWAIT 0x0040
|
|
#define MUSLC_MSG_WAITALL 0x0100
|
|
#define MUSLC_MSG_MORE 0x8000
|
|
|
|
static int netflags_muslc_2_lwip(int flags)
|
|
{
|
|
int flgs = 0;
|
|
|
|
if (flags & MUSLC_MSG_PEEK)
|
|
{
|
|
flgs |= MSG_PEEK;
|
|
}
|
|
if (flags & MUSLC_MSG_WAITALL)
|
|
{
|
|
flgs |= MSG_WAITALL;
|
|
}
|
|
if (flags & MUSLC_MSG_OOB)
|
|
{
|
|
flgs |= MSG_OOB;
|
|
}
|
|
if (flags & MUSLC_MSG_DONTWAIT)
|
|
{
|
|
flgs |= MSG_DONTWAIT;
|
|
}
|
|
if (flags & MUSLC_MSG_MORE)
|
|
{
|
|
flgs |= MSG_MORE;
|
|
}
|
|
return flgs;
|
|
}
|
|
|
|
#ifdef ARCH_MM_MMU
|
|
static int copy_msghdr_from_user(struct msghdr *kmsg, struct msghdr *umsg,
|
|
struct iovec **out_iov, void **out_msg_control)
|
|
{
|
|
size_t iovs_size;
|
|
struct iovec *uiov, *kiov;
|
|
size_t iovs_buffer_size = 0;
|
|
void *iovs_buffer;
|
|
|
|
if (!lwp_user_accessable(umsg, sizeof(*umsg)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
lwp_get_from_user(kmsg, umsg, sizeof(*kmsg));
|
|
|
|
iovs_size = sizeof(*kmsg->msg_iov) * kmsg->msg_iovlen;
|
|
if (!lwp_user_accessable(kmsg->msg_iov, iovs_size))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
/* user and kernel */
|
|
kiov = kmem_get(iovs_size * 2);
|
|
if (!kiov)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
uiov = (void *)kiov + iovs_size;
|
|
lwp_get_from_user(uiov, kmsg->msg_iov, iovs_size);
|
|
|
|
if (out_iov)
|
|
{
|
|
*out_iov = uiov;
|
|
}
|
|
kmsg->msg_iov = kiov;
|
|
|
|
for (int i = 0; i < kmsg->msg_iovlen; ++i)
|
|
{
|
|
/*
|
|
* We MUST check we can copy data to user after socket done in uiov
|
|
* otherwise we will be lost the messages from the network!
|
|
*/
|
|
if (!lwp_user_accessable(uiov->iov_base, uiov->iov_len))
|
|
{
|
|
kmem_put(kmsg->msg_iov);
|
|
|
|
return -EPERM;
|
|
}
|
|
|
|
iovs_buffer_size += uiov->iov_len;
|
|
kiov->iov_len = uiov->iov_len;
|
|
|
|
++kiov;
|
|
++uiov;
|
|
}
|
|
|
|
/* msg_iov and msg_control */
|
|
iovs_buffer = kmem_get(iovs_buffer_size + kmsg->msg_controllen);
|
|
|
|
if (!iovs_buffer)
|
|
{
|
|
kmem_put(kmsg->msg_iov);
|
|
|
|
return -ENOMEM;
|
|
}
|
|
|
|
kiov = kmsg->msg_iov;
|
|
|
|
for (int i = 0; i < kmsg->msg_iovlen; ++i)
|
|
{
|
|
kiov->iov_base = iovs_buffer;
|
|
iovs_buffer += kiov->iov_len;
|
|
++kiov;
|
|
}
|
|
|
|
*out_msg_control = kmsg->msg_control;
|
|
/* msg_control is the end of the iovs_buffer */
|
|
kmsg->msg_control = iovs_buffer;
|
|
|
|
return 0;
|
|
}
|
|
#endif /* ARCH_MM_MMU */
|
|
|
|
sysret_t sys_recvmsg(int socket, struct msghdr *msg, int flags)
|
|
{
|
|
int flgs, ret = -1;
|
|
struct msghdr kmsg;
|
|
#ifdef ARCH_MM_MMU
|
|
void *msg_control;
|
|
struct iovec *uiov, *kiov;
|
|
#endif
|
|
|
|
if (!msg)
|
|
{
|
|
return -EPERM;
|
|
}
|
|
|
|
flgs = netflags_muslc_2_lwip(flags);
|
|
|
|
#ifdef ARCH_MM_MMU
|
|
ret = copy_msghdr_from_user(&kmsg, msg, &uiov, &msg_control);
|
|
|
|
if (!ret)
|
|
{
|
|
ret = recvmsg(socket, &kmsg, flgs);
|
|
|
|
if (ret < 0)
|
|
{
|
|
goto _free_res;
|
|
}
|
|
|
|
kiov = kmsg.msg_iov;
|
|
|
|
for (int i = 0; i < kmsg.msg_iovlen; ++i)
|
|
{
|
|
lwp_put_to_user(uiov->iov_base, kiov->iov_base, kiov->iov_len);
|
|
|
|
++kiov;
|
|
++uiov;
|
|
}
|
|
|
|
lwp_put_to_user(msg_control, kmsg.msg_control, kmsg.msg_controllen);
|
|
lwp_put_to_user(&msg->msg_flags, &kmsg.msg_flags, sizeof(kmsg.msg_flags));
|
|
|
|
_free_res:
|
|
kmem_put(kmsg.msg_iov->iov_base);
|
|
kmem_put(kmsg.msg_iov);
|
|
}
|
|
#else
|
|
rt_memcpy(&kmsg, msg, sizeof(kmsg));
|
|
|
|
ret = recvmsg(socket, &kmsg, flgs);
|
|
|
|
if (!ret)
|
|
{
|
|
msg->msg_flags = kmsg.msg_flags;
|
|
}
|
|
#endif /* ARCH_MM_MMU */
|
|
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_recvfrom(int socket, void *mem, size_t len, int flags,
|
|
struct musl_sockaddr *from, socklen_t *fromlen)
|
|
{
|
|
int flgs = 0;
|
|
#ifdef ARCH_MM_MMU
|
|
int ret = -1;
|
|
void *kmem = RT_NULL;
|
|
#endif
|
|
|
|
flgs = netflags_muslc_2_lwip(flags);
|
|
#ifdef ARCH_MM_MMU
|
|
if (!len)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!lwp_user_accessable((void *)mem, len))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
kmem = kmem_get(len);
|
|
if (!kmem)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (flags == 0x2)
|
|
{
|
|
flags = 0x1;
|
|
}
|
|
|
|
if (from)
|
|
{
|
|
struct sockaddr sa;
|
|
|
|
ret = recvfrom(socket, kmem, len, flgs, &sa, fromlen);
|
|
sockaddr_tomusl(&sa, from);
|
|
}
|
|
else
|
|
{
|
|
ret = recvfrom(socket, kmem, len, flgs, NULL, NULL);
|
|
}
|
|
|
|
if (ret > 0)
|
|
{
|
|
lwp_put_to_user(mem, kmem, len);
|
|
}
|
|
|
|
if (ret < 0)
|
|
{
|
|
ret = GET_ERRNO();
|
|
}
|
|
|
|
kmem_put(kmem);
|
|
|
|
return ret;
|
|
#else
|
|
int ret = -1;
|
|
if (from)
|
|
{
|
|
struct sockaddr sa = {0};
|
|
|
|
ret = recvfrom(socket, mem, len, flgs, &sa, fromlen);
|
|
sockaddr_tomusl(&sa, from);
|
|
}
|
|
else
|
|
{
|
|
ret = recvfrom(socket, mem, len, flags, NULL, NULL);
|
|
}
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
#endif
|
|
}
|
|
|
|
sysret_t sys_recv(int socket, void *mem, size_t len, int flags)
|
|
{
|
|
int flgs = 0;
|
|
int ret;
|
|
void *kmem = RT_NULL;
|
|
|
|
if (!lwp_user_accessable((void *)mem, len))
|
|
return -EFAULT;
|
|
|
|
kmem = kmem_get(sizeof(*kmem));
|
|
if (kmem == RT_NULL)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
flgs = netflags_muslc_2_lwip(flags);
|
|
ret = recvfrom(socket, kmem, len, flgs, NULL, NULL);
|
|
|
|
lwp_put_to_user((void *)mem, kmem, len);
|
|
kmem_put(kmem);
|
|
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_sendmsg(int socket, const struct msghdr *msg, int flags)
|
|
{
|
|
int flgs, ret = -1;
|
|
struct msghdr kmsg;
|
|
#ifdef ARCH_MM_MMU
|
|
void *msg_control;
|
|
struct iovec *uiov, *kiov;
|
|
#endif
|
|
if (!msg)
|
|
{
|
|
return -EPERM;
|
|
}
|
|
|
|
flgs = netflags_muslc_2_lwip(flags);
|
|
|
|
#ifdef ARCH_MM_MMU
|
|
ret = copy_msghdr_from_user(&kmsg, (struct msghdr *)msg, &uiov, &msg_control);
|
|
|
|
if (!ret)
|
|
{
|
|
kiov = kmsg.msg_iov;
|
|
|
|
for (int i = 0; i < kmsg.msg_iovlen; ++i)
|
|
{
|
|
lwp_get_from_user(kiov->iov_base, uiov->iov_base, kiov->iov_len);
|
|
|
|
++kiov;
|
|
++uiov;
|
|
}
|
|
|
|
lwp_get_from_user(kmsg.msg_control, msg_control, kmsg.msg_controllen);
|
|
|
|
ret = sendmsg(socket, &kmsg, flgs);
|
|
|
|
kmem_put(kmsg.msg_iov->iov_base);
|
|
kmem_put(kmsg.msg_iov);
|
|
}
|
|
#else
|
|
rt_memcpy(&kmsg, msg, sizeof(kmsg));
|
|
|
|
ret = sendmsg(socket, &kmsg, flgs);
|
|
|
|
if (!ret)
|
|
{
|
|
msg->msg_flags = kmsg.msg_flags;
|
|
}
|
|
#endif /* ARCH_MM_MMU */
|
|
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_sendto(int socket, const void *dataptr, size_t size, int flags,
|
|
const struct musl_sockaddr *to, socklen_t tolen)
|
|
{
|
|
int flgs = 0;
|
|
#ifdef ARCH_MM_MMU
|
|
int ret = -1;
|
|
void *kmem = RT_NULL;
|
|
#endif
|
|
|
|
flgs = netflags_muslc_2_lwip(flags);
|
|
#ifdef ARCH_MM_MMU
|
|
if (!size)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!lwp_user_accessable((void *)dataptr, size))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
kmem = kmem_get(size);
|
|
if (!kmem)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
lwp_get_from_user(kmem, (void *)dataptr, size);
|
|
|
|
if (to)
|
|
{
|
|
struct sockaddr sa;
|
|
sockaddr_tolwip(to, &sa);
|
|
|
|
ret = sendto(socket, kmem, size, flgs, &sa, tolen);
|
|
}
|
|
else
|
|
{
|
|
ret = sendto(socket, kmem, size, flgs, NULL, tolen);
|
|
}
|
|
|
|
if (ret < 0)
|
|
{
|
|
ret = GET_ERRNO();
|
|
}
|
|
|
|
kmem_put(kmem);
|
|
|
|
return ret;
|
|
#else
|
|
int ret;
|
|
if (to)
|
|
{
|
|
struct sockaddr sa;
|
|
sockaddr_tolwip(to, &sa);
|
|
|
|
ret = sendto(socket, dataptr, size, flgs, &sa, tolen);
|
|
}
|
|
else
|
|
{
|
|
ret = sendto(socket, dataptr, size, flgs, NULL, tolen);
|
|
}
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
#endif
|
|
}
|
|
|
|
sysret_t sys_send(int socket, const void *dataptr, size_t size, int flags)
|
|
{
|
|
int flgs = 0;
|
|
int ret = 0;
|
|
void *kdataptr = RT_NULL;
|
|
|
|
if (!lwp_user_accessable((void *)dataptr, size))
|
|
return -EFAULT;
|
|
|
|
kdataptr = kmem_get(size);
|
|
if (kdataptr == RT_NULL)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (lwp_get_from_user(kdataptr, (void *)dataptr, size) != size)
|
|
{
|
|
kmem_put(kdataptr);
|
|
return -EINVAL;
|
|
}
|
|
|
|
flgs = netflags_muslc_2_lwip(flags);
|
|
ret = sendto(socket, kdataptr, size, flgs, NULL, 0);
|
|
|
|
kmem_put(kdataptr);
|
|
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_socket(int domain, int type, int protocol)
|
|
{
|
|
int fd = -1;
|
|
int nonblock = 0;
|
|
/* not support SOCK_CLOEXEC type */
|
|
if (type & SOCK_CLOEXEC)
|
|
{
|
|
type &= ~SOCK_CLOEXEC;
|
|
}
|
|
if (type & SOCK_NONBLOCK)
|
|
{
|
|
nonblock = 1;
|
|
type &= ~SOCK_NONBLOCK;
|
|
}
|
|
|
|
fd = socket(domain, type, protocol);
|
|
if (fd < 0)
|
|
{
|
|
goto out;
|
|
}
|
|
if (nonblock)
|
|
{
|
|
fcntl(fd, F_SETFL, O_NONBLOCK);
|
|
}
|
|
|
|
out:
|
|
return (fd < 0 ? GET_ERRNO() : fd);
|
|
}
|
|
|
|
sysret_t sys_socketpair(int domain, int type, int protocol, int fd[2])
|
|
{
|
|
#ifdef RT_USING_SAL
|
|
int ret = 0;
|
|
int k_fd[2];
|
|
|
|
if (!lwp_user_accessable((void *)fd, sizeof(int [2])))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
ret = socketpair(domain, type, protocol, k_fd);
|
|
|
|
if (ret == 0)
|
|
{
|
|
lwp_put_to_user(fd, k_fd, sizeof(int [2]));
|
|
}
|
|
|
|
return ret;
|
|
#else
|
|
return -ELIBACC;
|
|
#endif
|
|
}
|
|
|
|
sysret_t sys_closesocket(int socket)
|
|
{
|
|
return closesocket(socket);
|
|
}
|
|
|
|
#endif
|
|
|
|
rt_thread_t sys_thread_find(char *name)
|
|
{
|
|
int len = 0;
|
|
char *kname = RT_NULL;
|
|
rt_thread_t thread;
|
|
|
|
len = lwp_user_strlen(name);
|
|
if (len <= 0)
|
|
{
|
|
return RT_NULL;
|
|
}
|
|
|
|
kname = (char *)kmem_get(len + 1);
|
|
if (!kname)
|
|
{
|
|
return RT_NULL;
|
|
}
|
|
|
|
if (lwp_get_from_user(kname, (void *)name, len + 1) != (len + 1))
|
|
{
|
|
kmem_put(kname);
|
|
return RT_NULL;
|
|
}
|
|
|
|
thread = rt_thread_find(name);
|
|
|
|
kmem_put(kname);
|
|
|
|
return thread;
|
|
}
|
|
|
|
rt_tick_t sys_tick_get(void)
|
|
{
|
|
return rt_tick_get();
|
|
}
|
|
|
|
sysret_t sys_thread_mdelay(rt_int32_t ms)
|
|
{
|
|
return rt_thread_mdelay(ms);
|
|
}
|
|
|
|
struct k_sigaction {
|
|
void (*handler)(int);
|
|
unsigned long flags;
|
|
void (*restorer)(void);
|
|
unsigned mask[2];
|
|
};
|
|
|
|
sysret_t sys_sigaction(int sig, const struct k_sigaction *act,
|
|
struct k_sigaction *oact, size_t sigsetsize)
|
|
{
|
|
int ret = -RT_EINVAL;
|
|
struct rt_lwp *lwp;
|
|
struct lwp_sigaction kact, *pkact = RT_NULL;
|
|
struct lwp_sigaction koact, *pkoact = RT_NULL;
|
|
|
|
if (!sigsetsize)
|
|
{
|
|
SET_ERRNO(EINVAL);
|
|
goto out;
|
|
}
|
|
if (sigsetsize > sizeof(lwp_sigset_t))
|
|
{
|
|
sigsetsize = sizeof(lwp_sigset_t);
|
|
}
|
|
if (!act && !oact)
|
|
{
|
|
SET_ERRNO(EINVAL);
|
|
goto out;
|
|
}
|
|
if (oact)
|
|
{
|
|
if (!lwp_user_accessable((void *)oact, sizeof(*oact)))
|
|
{
|
|
SET_ERRNO(EFAULT);
|
|
goto out;
|
|
}
|
|
pkoact = &koact;
|
|
}
|
|
if (act)
|
|
{
|
|
if (!lwp_user_accessable((void *)act, sizeof(*act)))
|
|
{
|
|
SET_ERRNO(EFAULT);
|
|
goto out;
|
|
}
|
|
kact.sa_flags = act->flags;
|
|
kact.__sa_handler._sa_handler = act->handler;
|
|
lwp_memcpy(&kact.sa_mask, &act->mask, sigsetsize);
|
|
kact.sa_restorer = act->restorer;
|
|
pkact = &kact;
|
|
}
|
|
|
|
lwp = lwp_self();
|
|
RT_ASSERT(lwp);
|
|
ret = lwp_signal_action(lwp, sig, pkact, pkoact);
|
|
#ifdef ARCH_MM_MMU
|
|
if (ret == 0 && oact)
|
|
{
|
|
lwp_put_to_user(&oact->handler, &pkoact->__sa_handler._sa_handler, sizeof(void (*)(int)));
|
|
lwp_put_to_user(&oact->mask, &pkoact->sa_mask, sigsetsize);
|
|
lwp_put_to_user(&oact->flags, &pkoact->sa_flags, sizeof(int));
|
|
lwp_put_to_user(&oact->restorer, &pkoact->sa_restorer, sizeof(void (*)(void)));
|
|
}
|
|
#endif /* ARCH_MM_MMU */
|
|
out:
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
static int mask_command_u2k[] = {
|
|
[SIG_BLOCK] = LWP_SIG_MASK_CMD_BLOCK,
|
|
[SIG_UNBLOCK] = LWP_SIG_MASK_CMD_UNBLOCK,
|
|
[SIG_SETMASK] = LWP_SIG_MASK_CMD_SET_MASK,
|
|
};
|
|
|
|
sysret_t sys_sigprocmask(int how, const sigset_t *sigset, sigset_t *oset, size_t size)
|
|
{
|
|
int ret = -1;
|
|
lwp_sigset_t *pnewset = RT_NULL, *poldset = RT_NULL;
|
|
#ifdef ARCH_MM_MMU
|
|
lwp_sigset_t newset, oldset;
|
|
#endif /* ARCH_MM_MMU*/
|
|
|
|
if (!size)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
if (!oset && !sigset)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
if (size > sizeof(lwp_sigset_t))
|
|
{
|
|
size = sizeof(lwp_sigset_t);
|
|
}
|
|
if (oset)
|
|
{
|
|
#ifdef ARCH_MM_MMU
|
|
if (!lwp_user_accessable((void *)oset, size))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
poldset = &oldset;
|
|
#else
|
|
if (!lwp_user_accessable((void *)oset, size))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
poldset = (lwp_sigset_t *)oset;
|
|
#endif
|
|
}
|
|
if (sigset)
|
|
{
|
|
#ifdef ARCH_MM_MMU
|
|
if (!lwp_user_accessable((void *)sigset, size))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
lwp_get_from_user(&newset, (void *)sigset, size);
|
|
pnewset = &newset;
|
|
#else
|
|
if (!lwp_user_accessable((void *)sigset, size))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
pnewset = (lwp_sigset_t *)sigset;
|
|
#endif /* ARCH_MM_MMU */
|
|
}
|
|
ret = lwp_thread_signal_mask(rt_thread_self(), mask_command_u2k[how], pnewset, poldset);
|
|
#ifdef ARCH_MM_MMU
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
if (oset)
|
|
{
|
|
lwp_put_to_user(oset, poldset, size);
|
|
}
|
|
#endif /* ARCH_MM_MMU */
|
|
return (ret < 0 ? -EFAULT: ret);
|
|
}
|
|
|
|
sysret_t sys_sigpending(sigset_t *sigset, size_t sigsize)
|
|
{
|
|
sysret_t ret = 0;
|
|
lwp_sigset_t lwpset;
|
|
|
|
/* Verify and Get sigset, timeout */
|
|
if (!sigset || !lwp_user_accessable((void *)sigset, sigsize))
|
|
{
|
|
ret = -EFAULT;
|
|
}
|
|
else
|
|
{
|
|
/* Fit sigset size to lwp set */
|
|
if (sizeof(lwpset) < sigsize)
|
|
{
|
|
LOG_I("%s: sigsize (%lx) extends lwp sigset chunk\n", __func__, sigsize);
|
|
sigsize = sizeof(lwpset);
|
|
}
|
|
|
|
lwp_thread_signal_pending(rt_thread_self(), &lwpset);
|
|
|
|
if (!lwp_put_to_user(sigset, &lwpset, sigsize))
|
|
RT_ASSERT(0); /* should never happened */
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_sigtimedwait(const sigset_t *sigset, siginfo_t *info, const struct timespec *timeout, size_t sigsize)
|
|
{
|
|
int sig;
|
|
size_t ret;
|
|
lwp_sigset_t lwpset;
|
|
siginfo_t kinfo;
|
|
struct timespec ktimeout;
|
|
struct timespec *ptimeout;
|
|
|
|
/* for RT_ASSERT */
|
|
RT_UNUSED(ret);
|
|
|
|
/* Fit sigset size to lwp set */
|
|
if (sizeof(lwpset) < sigsize)
|
|
{
|
|
LOG_I("%s: sigsize (%lx) extends lwp sigset chunk\n", __func__, sigsize);
|
|
sigsize = sizeof(lwpset);
|
|
}
|
|
else
|
|
{
|
|
/* if sigset of user is smaller, clear extra space */
|
|
memset(&lwpset, 0, sizeof(lwpset));
|
|
}
|
|
|
|
/* Verify and Get sigset, timeout */
|
|
if (!sigset || !lwp_user_accessable((void *)sigset, sigsize))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
else
|
|
{
|
|
ret = lwp_get_from_user(&lwpset, (void *)sigset, sigsize);
|
|
RT_ASSERT(ret == sigsize);
|
|
}
|
|
|
|
if (timeout)
|
|
{
|
|
if (!lwp_user_accessable((void *)timeout, sizeof(*timeout)))
|
|
return -EFAULT;
|
|
else
|
|
{
|
|
ret = lwp_get_from_user(&ktimeout, (void *)timeout, sizeof(*timeout));
|
|
ptimeout = &ktimeout;
|
|
RT_ASSERT(ret == sizeof(*timeout));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ptimeout = RT_NULL;
|
|
}
|
|
|
|
sig = lwp_thread_signal_timedwait(rt_thread_self(), &lwpset, &kinfo, ptimeout);
|
|
|
|
if (sig > 0 && info)
|
|
{
|
|
if (!lwp_user_accessable((void *)info, sizeof(*info)))
|
|
return -EFAULT;
|
|
else
|
|
{
|
|
ret = lwp_put_to_user(info, &kinfo, sizeof(*info));
|
|
RT_ASSERT(ret == sizeof(*info));
|
|
}
|
|
}
|
|
|
|
return sig;
|
|
}
|
|
|
|
sysret_t sys_tkill(int tid, int sig)
|
|
{
|
|
#ifdef ARCH_MM_MMU
|
|
rt_thread_t thread;
|
|
sysret_t ret;
|
|
|
|
/**
|
|
* Brief: Match a tid and do the kill
|
|
*
|
|
* Note: Critical Section
|
|
* - the thread (READ. may be released at the meantime; protected by locked)
|
|
*/
|
|
thread = lwp_tid_get_thread_and_inc_ref(tid);
|
|
ret = lwp_thread_signal_kill(thread, sig, SI_USER, 0);
|
|
lwp_tid_dec_ref(thread);
|
|
|
|
return ret;
|
|
#else
|
|
return lwp_thread_kill((rt_thread_t)tid, sig);
|
|
#endif
|
|
}
|
|
|
|
sysret_t sys_thread_sigprocmask(int how, const lwp_sigset_t *sigset, lwp_sigset_t *oset, size_t size)
|
|
{
|
|
int ret = -1;
|
|
lwp_sigset_t *pnewset = RT_NULL, *poldset = RT_NULL;
|
|
#ifdef ARCH_MM_MMU
|
|
lwp_sigset_t newset, oldset;
|
|
#endif /* ARCH_MM_MMU */
|
|
|
|
if (!size)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
if (!oset && !sigset)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
if (size != sizeof(lwp_sigset_t))
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
if (oset)
|
|
{
|
|
#ifdef ARCH_MM_MMU
|
|
if (!lwp_user_accessable((void *)oset, size))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
poldset = &oldset;
|
|
#else
|
|
if (!lwp_user_accessable((void *)oset, size))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
poldset = oset;
|
|
#endif
|
|
}
|
|
if (sigset)
|
|
{
|
|
#ifdef ARCH_MM_MMU
|
|
if (!lwp_user_accessable((void *)sigset, size))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
lwp_get_from_user(&newset, (void *)sigset, sizeof(lwp_sigset_t));
|
|
pnewset = &newset;
|
|
#else
|
|
if (!lwp_user_accessable((void *)sigset, size))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
pnewset = (lwp_sigset_t *)sigset;
|
|
#endif
|
|
}
|
|
ret = lwp_thread_signal_mask(rt_thread_self(), mask_command_u2k[how], pnewset, poldset);
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
#ifdef ARCH_MM_MMU
|
|
if (oset)
|
|
{
|
|
lwp_put_to_user(oset, poldset, sizeof(lwp_sigset_t));
|
|
}
|
|
#endif
|
|
return (ret < 0 ? -EFAULT: ret);
|
|
}
|
|
|
|
#ifndef ARCH_MM_MMU
|
|
sysret_t sys_lwp_sighandler_set(int sig, lwp_sighandler_t func)
|
|
{
|
|
if (!lwp_user_accessable((void *)func, sizeof(lwp_sighandler_t)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
lwp_sighandler_set(sig, func);
|
|
return 0;
|
|
}
|
|
|
|
sysret_t sys_thread_sighandler_set(int sig, lwp_sighandler_t func)
|
|
{
|
|
if (!lwp_user_accessable((void *)func, sizeof(lwp_sighandler_t)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
lwp_thread_sighandler_set(sig, func);
|
|
return 0;
|
|
}
|
|
#endif /* not defined ARCH_MM_MMU */
|
|
|
|
sysret_t sys_waitpid(int32_t pid, int *status, int options)
|
|
{
|
|
int ret = -1;
|
|
#ifdef ARCH_MM_MMU
|
|
if (!lwp_user_accessable((void *)status, sizeof(int)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
else
|
|
{
|
|
ret = lwp_waitpid(pid, status, options, RT_NULL);
|
|
}
|
|
#else
|
|
if (!lwp_user_accessable((void *)status, sizeof(int)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
ret = waitpid(pid, status, options);
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
#if defined(RT_USING_SAL) && defined(SAL_USING_POSIX)
|
|
struct musl_addrinfo
|
|
{
|
|
int ai_flags;
|
|
int ai_family;
|
|
int ai_socktype;
|
|
int ai_protocol;
|
|
socklen_t ai_addrlen;
|
|
|
|
struct musl_sockaddr *ai_addr;
|
|
char *ai_canonname;
|
|
|
|
struct musl_addrinfo *ai_next;
|
|
};
|
|
|
|
sysret_t sys_getaddrinfo(const char *nodename,
|
|
const char *servname,
|
|
const struct musl_addrinfo *hints,
|
|
struct musl_addrinfo *res)
|
|
{
|
|
int ret = -1;
|
|
struct addrinfo *k_res = NULL;
|
|
char *k_nodename = NULL;
|
|
char *k_servname = NULL;
|
|
struct addrinfo *k_hints = NULL;
|
|
#ifdef ARCH_MM_MMU
|
|
int len = 0;
|
|
#endif
|
|
|
|
#ifdef ARCH_MM_MMU
|
|
if (!lwp_user_accessable((void *)res, sizeof(*res)))
|
|
{
|
|
SET_ERRNO(EFAULT);
|
|
goto exit;
|
|
}
|
|
#endif
|
|
if (nodename)
|
|
{
|
|
#ifdef ARCH_MM_MMU
|
|
len = lwp_user_strlen(nodename);
|
|
if (len <= 0)
|
|
{
|
|
SET_ERRNO(EFAULT);
|
|
goto exit;
|
|
}
|
|
|
|
k_nodename = (char *)kmem_get(len + 1);
|
|
if (!k_nodename)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto exit;
|
|
}
|
|
|
|
if (lwp_get_from_user(k_nodename, (void *)nodename, len + 1) != len + 1)
|
|
{
|
|
SET_ERRNO(EFAULT);
|
|
goto exit;
|
|
}
|
|
#else
|
|
k_nodename = rt_strdup(nodename);
|
|
if (!k_nodename)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto exit;
|
|
}
|
|
#endif
|
|
}
|
|
if (servname)
|
|
{
|
|
#ifdef ARCH_MM_MMU
|
|
len = lwp_user_strlen(servname);
|
|
if (len <= 0)
|
|
{
|
|
SET_ERRNO(EFAULT);
|
|
goto exit;
|
|
}
|
|
|
|
k_servname = (char *)kmem_get(len + 1);
|
|
if (!k_servname)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto exit;
|
|
}
|
|
|
|
if (lwp_get_from_user(k_servname, (void *)servname, len + 1) < 0)
|
|
{
|
|
SET_ERRNO(EFAULT);
|
|
goto exit;
|
|
}
|
|
#else
|
|
k_servname = rt_strdup(servname);
|
|
if (!k_servname)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto exit;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
if (hints)
|
|
{
|
|
#ifdef ARCH_MM_MMU
|
|
if (!lwp_user_accessable((void *)hints, sizeof(*hints)))
|
|
{
|
|
SET_ERRNO(EFAULT);
|
|
goto exit;
|
|
}
|
|
#endif
|
|
k_hints = (struct addrinfo *) rt_malloc(sizeof *hints);
|
|
if (!k_hints)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto exit;
|
|
}
|
|
|
|
rt_memset(k_hints, 0x0, sizeof(struct addrinfo));
|
|
k_hints->ai_flags = hints->ai_flags;
|
|
k_hints->ai_family = hints->ai_family;
|
|
k_hints->ai_socktype = hints->ai_socktype;
|
|
k_hints->ai_protocol = hints->ai_protocol;
|
|
k_hints->ai_addrlen = hints->ai_addrlen;
|
|
}
|
|
|
|
ret = sal_getaddrinfo(k_nodename, k_servname, k_hints, &k_res);
|
|
if (ret == 0)
|
|
{
|
|
/* set sockaddr */
|
|
sockaddr_tomusl(k_res->ai_addr, res->ai_addr);
|
|
res->ai_addrlen = k_res->ai_addrlen;
|
|
|
|
/* set up addrinfo */
|
|
res->ai_family = k_res->ai_family;
|
|
res->ai_flags = k_res->ai_flags;
|
|
res->ai_next = NULL;
|
|
|
|
if (hints != NULL)
|
|
{
|
|
/* copy socktype & protocol from hints if specified */
|
|
res->ai_socktype = hints->ai_socktype;
|
|
res->ai_protocol = hints->ai_protocol;
|
|
}
|
|
|
|
sal_freeaddrinfo(k_res);
|
|
k_res = NULL;
|
|
}
|
|
|
|
exit:
|
|
if (ret < 0)
|
|
{
|
|
ret = GET_ERRNO();
|
|
}
|
|
#ifdef ARCH_MM_MMU
|
|
if (k_nodename)
|
|
{
|
|
kmem_put(k_nodename);
|
|
}
|
|
#else
|
|
if (k_nodename)
|
|
{
|
|
rt_free(k_nodename);
|
|
}
|
|
#endif
|
|
#ifdef ARCH_MM_MMU
|
|
if (k_servname)
|
|
{
|
|
kmem_put(k_servname);
|
|
}
|
|
#else
|
|
if (k_servname)
|
|
{
|
|
rt_free(k_servname);
|
|
}
|
|
#endif
|
|
if (k_hints)
|
|
{
|
|
rt_free(k_hints);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#define HOSTENT_BUFSZ 512
|
|
sysret_t sys_gethostbyname2_r(const char *name, int af, struct hostent *ret,
|
|
char *buf, size_t buflen,
|
|
struct hostent **result, int *err)
|
|
{
|
|
int ret_val = -1;
|
|
int sal_ret = -1 , sal_err = -1;
|
|
struct hostent sal_he, sal_tmp;
|
|
struct hostent *sal_result = NULL;
|
|
char *sal_buf = NULL;
|
|
char *k_name = NULL;
|
|
int len = 0;
|
|
|
|
#ifdef ARCH_MM_MMU
|
|
if (!lwp_user_accessable((void *)err, sizeof(*err)))
|
|
{
|
|
SET_ERRNO(EFAULT);
|
|
goto __exit;
|
|
}
|
|
|
|
if (!lwp_user_accessable((void *)result, sizeof(*result))
|
|
|| !lwp_user_accessable((void *)ret, sizeof(*ret))
|
|
|| !lwp_user_accessable((void *)buf, buflen))
|
|
{
|
|
/* not all arguments given */
|
|
*err = EFAULT;
|
|
SET_ERRNO(EFAULT);
|
|
goto __exit;
|
|
}
|
|
|
|
len = lwp_user_strlen(name);
|
|
if (len <= 0)
|
|
{
|
|
*err = EFAULT;
|
|
SET_ERRNO(EFAULT);
|
|
goto __exit;
|
|
}
|
|
|
|
k_name = (char *)kmem_get(len + 1);
|
|
if (!k_name)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto __exit;
|
|
}
|
|
|
|
if (lwp_get_from_user(k_name, (void *)name, len + 1) < 0)
|
|
{
|
|
SET_ERRNO(EFAULT);
|
|
goto __exit;
|
|
}
|
|
#else
|
|
k_name = rt_strdup(name);
|
|
if (k_name == NULL)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto __exit;
|
|
}
|
|
#endif
|
|
|
|
*result = ret;
|
|
sal_buf = (char *)malloc(HOSTENT_BUFSZ);
|
|
if (sal_buf == NULL)
|
|
{
|
|
SET_ERRNO(ENOMEM);
|
|
goto __exit;
|
|
}
|
|
|
|
/* get host by name in SAL */
|
|
sal_ret = sal_gethostbyname_r(k_name, &sal_he, sal_buf, HOSTENT_BUFSZ, &sal_result, &sal_err);
|
|
if (sal_ret == 0)
|
|
{
|
|
int index = 0, cnt = 0;
|
|
char *ptr = buf;
|
|
|
|
/* get counter */
|
|
index = 0;
|
|
while (sal_he.h_addr_list[index] != NULL)
|
|
{
|
|
index++;
|
|
}
|
|
cnt = index + 1;
|
|
|
|
#ifdef ARCH_MM_MMU
|
|
/* update user space hostent */
|
|
lwp_put_to_user(buf, k_name, buflen - (ptr - buf));
|
|
lwp_memcpy(&sal_tmp, &sal_he, sizeof(sal_he));
|
|
sal_tmp.h_name = ptr;
|
|
ptr += rt_strlen(k_name);
|
|
|
|
sal_tmp.h_addr_list = (char**)ptr;
|
|
ptr += cnt * sizeof(char *);
|
|
|
|
index = 0;
|
|
while (sal_he.h_addr_list[index] != NULL)
|
|
{
|
|
sal_tmp.h_addr_list[index] = ptr;
|
|
lwp_memcpy(ptr, sal_he.h_addr_list[index], sal_he.h_length);
|
|
|
|
ptr += sal_he.h_length;
|
|
index++;
|
|
}
|
|
sal_tmp.h_addr_list[index] = NULL;
|
|
lwp_put_to_user(ret, &sal_tmp, sizeof(sal_tmp));
|
|
#else
|
|
/* update user space hostent */
|
|
ret->h_addrtype = sal_he.h_addrtype;
|
|
ret->h_length = sal_he.h_length;
|
|
|
|
rt_strncpy(ptr, k_name, buflen - (ptr - buf));
|
|
ret->h_name = ptr;
|
|
ptr += strlen(k_name);
|
|
|
|
ret->h_addr_list = (char**)ptr;
|
|
ptr += cnt * sizeof(char *);
|
|
|
|
index = 0;
|
|
while (sal_he.h_addr_list[index] != NULL)
|
|
{
|
|
ret->h_addr_list[index] = ptr;
|
|
lwp_memcpy(ptr, sal_he.h_addr_list[index], sal_he.h_length);
|
|
|
|
ptr += sal_he.h_length;
|
|
index++;
|
|
}
|
|
ret->h_addr_list[index] = NULL;
|
|
#endif
|
|
ret_val = 0;
|
|
}
|
|
else
|
|
{
|
|
SET_ERRNO(EINVAL);
|
|
}
|
|
|
|
__exit:
|
|
if (ret_val < 0)
|
|
{
|
|
ret_val = GET_ERRNO();
|
|
}
|
|
|
|
/* release buffer */
|
|
if (sal_buf)
|
|
{
|
|
free(sal_buf);
|
|
}
|
|
#ifdef ARCH_MM_MMU
|
|
if (k_name)
|
|
{
|
|
kmem_put(k_name);
|
|
}
|
|
#else
|
|
if (k_name)
|
|
{
|
|
free(k_name);
|
|
}
|
|
#endif
|
|
|
|
return ret_val;
|
|
}
|
|
#endif
|
|
|
|
long sys_getcwd(char *buf, size_t size)
|
|
{
|
|
char *tmp = RT_NULL;
|
|
long ret = -1;
|
|
|
|
if (!lwp_user_accessable((void *)buf, size))
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
tmp = (char *)rt_malloc(size);
|
|
if (!tmp)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
if (getcwd(tmp, size) != RT_NULL)
|
|
{
|
|
if (lwp_put_to_user(buf, tmp, size) > 0)
|
|
{
|
|
if (buf != RT_NULL)
|
|
ret = strlen(buf);
|
|
else
|
|
ret = -EFAULT;
|
|
}
|
|
}
|
|
|
|
rt_free(tmp);
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_chdir(const char *path)
|
|
{
|
|
#ifdef ARCH_MM_MMU
|
|
int err = 0;
|
|
int len = 0;
|
|
int errcode;
|
|
char *kpath = RT_NULL;
|
|
|
|
len = lwp_user_strlen(path);
|
|
if (len <= 0)
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
kpath = (char *)kmem_get(len + 1);
|
|
if (!kpath)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (lwp_get_from_user(kpath, (void *)path, len + 1) != (len + 1))
|
|
{
|
|
kmem_put(kpath);
|
|
return -EINVAL;
|
|
}
|
|
|
|
err = chdir(kpath);
|
|
errcode = err != 0 ? GET_ERRNO() : 0;
|
|
|
|
kmem_put(kpath);
|
|
|
|
return errcode;
|
|
#else
|
|
int ret = chdir(path);
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
#endif
|
|
}
|
|
|
|
sysret_t sys_fchdir(int fd)
|
|
{
|
|
int errcode = -ENOSYS;
|
|
#ifdef ARCH_MM_MMU
|
|
#ifdef RT_USING_DFS_V2
|
|
int err = -1;
|
|
struct dfs_file *d;
|
|
char *kpath;
|
|
|
|
d = fd_get(fd);
|
|
if (!d || !d->vnode)
|
|
{
|
|
return -EBADF;
|
|
}
|
|
kpath = dfs_dentry_full_path(d->dentry);
|
|
if (!kpath)
|
|
{
|
|
return -EACCES;
|
|
}
|
|
|
|
err = chdir(kpath);
|
|
errcode = err != 0 ? GET_ERRNO() : 0;
|
|
|
|
kmem_put(kpath);
|
|
#endif
|
|
#endif
|
|
return errcode;
|
|
}
|
|
|
|
sysret_t sys_mkdir(const char *path, mode_t mode)
|
|
{
|
|
#ifdef ARCH_MM_MMU
|
|
int err = 0;
|
|
int len = 0;
|
|
char *kpath = RT_NULL;
|
|
|
|
len = lwp_user_strlen(path);
|
|
if (len <= 0)
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
kpath = (char *)kmem_get(len + 1);
|
|
if (!kpath)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (lwp_get_from_user(kpath, (void *)path, len + 1) != (len + 1))
|
|
{
|
|
kmem_put(kpath);
|
|
return -EINVAL;
|
|
}
|
|
|
|
err = _SYS_WRAP(mkdir(kpath, mode));
|
|
|
|
kmem_put(kpath);
|
|
|
|
return err;
|
|
#else
|
|
int ret = mkdir(path, mode);
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
#endif
|
|
}
|
|
|
|
sysret_t sys_rmdir(const char *path)
|
|
{
|
|
#ifdef ARCH_MM_MMU
|
|
int err = 0;
|
|
int len = 0;
|
|
char *kpath = RT_NULL;
|
|
|
|
len = lwp_user_strlen(path);
|
|
if (len <= 0)
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
kpath = (char *)kmem_get(len + 1);
|
|
if (!kpath)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (lwp_get_from_user(kpath, (void *)path, len + 1) != (len + 1))
|
|
{
|
|
kmem_put(kpath);
|
|
return -EINVAL;
|
|
}
|
|
|
|
err = rmdir(kpath);
|
|
|
|
kmem_put(kpath);
|
|
|
|
return (err < 0 ? GET_ERRNO() : err);
|
|
#else
|
|
int ret = rmdir(path);
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
#endif
|
|
}
|
|
|
|
#ifdef RT_USING_MUSLLIBC
|
|
typedef uint64_t ino_t;
|
|
#endif
|
|
|
|
struct libc_dirent {
|
|
ino_t d_ino;
|
|
off_t d_off;
|
|
unsigned short d_reclen;
|
|
unsigned char d_type;
|
|
char d_name[DIRENT_NAME_MAX];
|
|
};
|
|
|
|
sysret_t sys_getdents(int fd, struct libc_dirent *dirp, size_t nbytes)
|
|
{
|
|
int ret = -1;
|
|
struct dfs_file *file;
|
|
size_t cnt = (nbytes / sizeof(struct libc_dirent));
|
|
size_t rtt_nbytes = 0;
|
|
struct dirent *rtt_dirp;
|
|
|
|
#ifdef ARCH_MM_MMU
|
|
if (!lwp_user_accessable((void *)dirp, sizeof(struct libc_dirent)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
#endif
|
|
|
|
if (cnt == 0)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
rtt_nbytes = cnt * sizeof(struct dirent);
|
|
rtt_dirp = (struct dirent *)rt_malloc(rtt_nbytes);
|
|
if (!rtt_dirp)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
file = fd_get(fd);
|
|
ret = dfs_file_getdents(file, rtt_dirp, rtt_nbytes);
|
|
if (ret > 0)
|
|
{
|
|
size_t i = 0;
|
|
cnt = ret / sizeof(struct dirent);
|
|
for (i = 0; i < cnt; i++)
|
|
{
|
|
dirp[i].d_ino = 0;
|
|
dirp[i].d_off = i*sizeof(struct libc_dirent);
|
|
dirp[i].d_type = rtt_dirp[i].d_type;
|
|
dirp[i].d_reclen = sizeof(struct libc_dirent);
|
|
strcpy(dirp[i].d_name, rtt_dirp[i].d_name);
|
|
}
|
|
ret = cnt * sizeof(struct libc_dirent);
|
|
}
|
|
|
|
if (ret < 0)
|
|
{
|
|
ret = GET_ERRNO();
|
|
}
|
|
|
|
rt_free(rtt_dirp);
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_get_errno(void)
|
|
{
|
|
return rt_get_errno();
|
|
}
|
|
|
|
#ifdef ARCH_MM_MMU
|
|
sysret_t sys_set_thread_area(void *p)
|
|
{
|
|
rt_thread_t thread;
|
|
|
|
thread = rt_thread_self();
|
|
thread->thread_idr = p;
|
|
arch_set_thread_area(p);
|
|
|
|
return 0;
|
|
}
|
|
|
|
sysret_t sys_set_tid_address(int *tidptr)
|
|
{
|
|
rt_thread_t thread;
|
|
|
|
#ifdef ARCH_MM_MMU
|
|
if (!lwp_user_accessable((void *)tidptr, sizeof(int)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
#endif
|
|
thread = rt_thread_self();
|
|
thread->clear_child_tid = tidptr;
|
|
return thread->tid;
|
|
}
|
|
#endif /* ARCH_MM_MMU */
|
|
|
|
sysret_t sys_gettid(void)
|
|
{
|
|
return rt_thread_self()->tid;
|
|
}
|
|
|
|
sysret_t sys_access(const char *filename, int mode)
|
|
{
|
|
int ret = 0;
|
|
#ifdef ARCH_MM_MMU
|
|
rt_size_t len = 0;
|
|
char *kfilename = RT_NULL;
|
|
|
|
len = lwp_user_strlen(filename);
|
|
if (len <= 0)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
kfilename = (char *)kmem_get(len + 1);
|
|
if (!kfilename)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (lwp_get_from_user(kfilename, (void *)filename, len + 1) != (len + 1))
|
|
{
|
|
kmem_put(kfilename);
|
|
return -EFAULT;
|
|
}
|
|
|
|
ret = access(kfilename, mode);
|
|
if (ret < 0)
|
|
{
|
|
ret = GET_ERRNO();
|
|
}
|
|
|
|
kmem_put(kfilename);
|
|
return ret;
|
|
#else
|
|
ret = access(filename, mode);
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
#endif
|
|
}
|
|
|
|
sysret_t sys_pipe(int fd[2])
|
|
{
|
|
int ret;
|
|
int kfd[2] = {0, 0};
|
|
|
|
if (!lwp_user_accessable((void *)fd, sizeof(int[2])))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
ret = pipe(kfd);
|
|
|
|
lwp_put_to_user((void *)fd, kfd, sizeof(int[2]));
|
|
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_wait4(pid_t pid, int *status, int options, struct rusage *ru)
|
|
{
|
|
return lwp_waitpid(pid, status, options, ru);
|
|
}
|
|
|
|
sysret_t sys_clock_settime(clockid_t clk, const struct timespec *ts)
|
|
{
|
|
int ret = 0;
|
|
#ifdef ARCH_MM_MMU
|
|
size_t size = sizeof(struct timespec);
|
|
struct timespec *kts = NULL;
|
|
|
|
if (!lwp_user_accessable((void *)ts, size))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
kts = kmem_get(size);
|
|
if (!kts)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
lwp_get_from_user(kts, (void *)ts, size);
|
|
ret = clock_settime(clk, kts);
|
|
if (ret < 0)
|
|
{
|
|
ret = GET_ERRNO();
|
|
}
|
|
|
|
kmem_put(kts);
|
|
|
|
return ret;
|
|
#else
|
|
if (!lwp_user_accessable((void *)ts, sizeof(struct timespec)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
ret = clock_settime(clk, ts);
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
#endif
|
|
}
|
|
|
|
sysret_t sys_clock_gettime(clockid_t clk, struct timespec *ts)
|
|
{
|
|
int ret = 0;
|
|
#ifdef ARCH_MM_MMU
|
|
size_t size = sizeof(struct timespec);
|
|
struct timespec *kts = NULL;
|
|
|
|
if (!lwp_user_accessable((void *)ts, size))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
kts = kmem_get(size);
|
|
if (!kts)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
ret = clock_gettime(clk, kts);
|
|
if (ret != -1)
|
|
lwp_put_to_user(ts, kts, size);
|
|
|
|
if (ret < 0)
|
|
{
|
|
ret = GET_ERRNO();
|
|
}
|
|
|
|
kmem_put(kts);
|
|
|
|
return ret;
|
|
#else
|
|
if (!lwp_user_accessable((void *)ts, sizeof(struct timespec)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
ret = clock_gettime(clk, ts);
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
#endif
|
|
}
|
|
|
|
sysret_t sys_clock_nanosleep(clockid_t clk, int flags, const struct timespec *rqtp, struct timespec *rmtp)
|
|
{
|
|
int ret = 0;
|
|
dbg_log(DBG_LOG, "sys_nanosleep\n");
|
|
if (!lwp_user_accessable((void *)rqtp, sizeof *rqtp))
|
|
return -EFAULT;
|
|
|
|
#ifdef ARCH_MM_MMU
|
|
struct timespec rqtp_k;
|
|
struct timespec rmtp_k;
|
|
|
|
lwp_get_from_user(&rqtp_k, (void *)rqtp, sizeof rqtp_k);
|
|
ret = clock_nanosleep(clk, flags, &rqtp_k, &rmtp_k);
|
|
if ((ret != -1 || rt_get_errno() == EINTR) && rmtp && lwp_user_accessable((void *)rmtp, sizeof *rmtp))
|
|
{
|
|
lwp_put_to_user(rmtp, (void *)&rmtp_k, sizeof rmtp_k);
|
|
if(ret != 0)
|
|
return -EINTR;
|
|
}
|
|
#else
|
|
if (rmtp)
|
|
{
|
|
if (!lwp_user_accessable((void *)rmtp, sizeof *rmtp))
|
|
return -EFAULT;
|
|
ret = clock_nanosleep(clk, flags, rqtp, rmtp);
|
|
}
|
|
#endif
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_clock_getres(clockid_t clk, struct timespec *ts)
|
|
{
|
|
int ret = 0;
|
|
#ifdef ARCH_MM_MMU
|
|
struct timespec kts;
|
|
size_t size = sizeof(struct timespec);
|
|
|
|
if (!lwp_user_accessable((void *)ts, size))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
ret = clock_getres(clk, &kts);
|
|
|
|
if (ret != -1)
|
|
lwp_put_to_user(ts, &kts, size);
|
|
#else
|
|
if (!lwp_user_accessable((void *)ts, sizeof(struct timespec)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
ret = clock_getres(clk, ts);
|
|
#endif
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_rename(const char *oldpath, const char *newpath)
|
|
{
|
|
int ret = -1;
|
|
#ifdef ARCH_MM_MMU
|
|
int err;
|
|
|
|
err = lwp_user_strlen(oldpath);
|
|
if (err <= 0)
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
err = lwp_user_strlen(newpath);
|
|
if (err <= 0)
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
#endif
|
|
ret = rename(oldpath, newpath);
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
typedef unsigned long long rlim_t;
|
|
|
|
struct rlimit {
|
|
rlim_t rlim_cur;
|
|
rlim_t rlim_max;
|
|
};
|
|
|
|
#define RLIMIT_CPU 0
|
|
#define RLIMIT_FSIZE 1
|
|
#define RLIMIT_DATA 2
|
|
#define RLIMIT_STACK 3
|
|
#define RLIMIT_CORE 4
|
|
#define RLIMIT_RSS 5
|
|
#define RLIMIT_NPROC 6
|
|
#define RLIMIT_NOFILE 7
|
|
#define RLIMIT_MEMLOCK 8
|
|
#define RLIMIT_AS 9
|
|
|
|
sysret_t sys_prlimit64(pid_t pid,
|
|
unsigned int resource,
|
|
const struct rlimit *new_rlim,
|
|
struct rlimit *old_rlim)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
sysret_t sys_getrlimit(unsigned int resource, unsigned long rlim[2])
|
|
{
|
|
int ret = -1;
|
|
unsigned long krlim[2] = {0, 0};
|
|
|
|
if (!lwp_user_accessable((void *)rlim, sizeof(unsigned long [2])))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
if (lwp_get_from_user(krlim, rlim, sizeof(unsigned long [2])) != sizeof(unsigned long [2]))
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch (resource)
|
|
{
|
|
case RLIMIT_NOFILE:
|
|
{
|
|
struct dfs_fdtable *fdt = dfs_fdtable_get();
|
|
|
|
dfs_file_lock();
|
|
krlim[0] = fdt->maxfd;
|
|
dfs_file_unlock();
|
|
krlim[1] = DFS_FD_MAX;
|
|
ret = 0;
|
|
}
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
break;
|
|
}
|
|
|
|
lwp_put_to_user((void *)rlim, krlim, sizeof(unsigned long [2]));
|
|
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_setrlimit(unsigned int resource, struct rlimit *rlim)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
sysret_t sys_getrandom(void *buf, size_t buflen, unsigned int flags)
|
|
{
|
|
int ret = -1;
|
|
int count = 0;
|
|
void *kmem = RT_NULL;
|
|
rt_device_t rd_dev = RT_NULL;
|
|
|
|
if (flags & GRND_RANDOM)
|
|
rd_dev = rt_device_find("random");
|
|
else
|
|
rd_dev = rt_device_find("urandom");
|
|
|
|
if (rd_dev == RT_NULL)
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
if (rt_device_open(rd_dev, RT_DEVICE_OFLAG_RDONLY) != RT_EOK)
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
if (!lwp_user_accessable(buf, buflen))
|
|
{
|
|
rt_device_close(rd_dev);
|
|
return -EFAULT;
|
|
}
|
|
|
|
#ifdef ARCH_MM_MMU
|
|
kmem = kmem_get(buflen);
|
|
if (!kmem)
|
|
{
|
|
rt_device_close(rd_dev);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
while (count < buflen)
|
|
{
|
|
ret = rt_device_read(rd_dev, count, (char *)kmem + count, buflen - count);
|
|
if (ret <= 0)
|
|
break;
|
|
count += ret;
|
|
}
|
|
rt_device_close(rd_dev);
|
|
|
|
ret = count;
|
|
if (count > 0)
|
|
{
|
|
ret = lwp_put_to_user(buf, kmem, count);
|
|
}
|
|
kmem_put(kmem);
|
|
#else
|
|
while (count < buflen)
|
|
{
|
|
ret = rt_device_read(rd_dev, count, (char *)kmem + count, buflen - count);
|
|
if (ret <= 0)
|
|
break;
|
|
count += ret;
|
|
}
|
|
rt_device_close(rd_dev);
|
|
|
|
ret = count;
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* readlink() places the contents of the symbolic link pathname in the buffer buf, which has size bufsiz.
|
|
* readlink() does not append a null byte to buf.
|
|
* It will (silently) truncate the contents(to a length of bufsiz characters),
|
|
* in case the buffer is too small to hold all of the contents.
|
|
*/
|
|
ssize_t sys_readlink(char* path, char *buf, size_t bufsz)
|
|
{
|
|
size_t len, copy_len;
|
|
int err, rtn;
|
|
char *copy_path;
|
|
|
|
len = lwp_user_strlen(path);
|
|
if (len <= 0)
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
if (!lwp_user_accessable(buf, bufsz))
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
copy_path = (char*)rt_malloc(len + 1);
|
|
if (!copy_path)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
copy_len = lwp_get_from_user(copy_path, path, len);
|
|
copy_path[copy_len] = '\0';
|
|
|
|
char *link_fn = (char *)rt_malloc(DFS_PATH_MAX);
|
|
if (link_fn)
|
|
{
|
|
err = dfs_file_readlink(copy_path, link_fn, DFS_PATH_MAX);
|
|
if (err > 0)
|
|
{
|
|
rtn = lwp_put_to_user(buf, link_fn, bufsz > err ? err : bufsz - 1);
|
|
}
|
|
else
|
|
{
|
|
rtn = -EIO;
|
|
}
|
|
rt_free(link_fn);
|
|
}
|
|
else
|
|
{
|
|
rtn = -ENOMEM;
|
|
}
|
|
|
|
rt_free(copy_path);
|
|
return rtn;
|
|
}
|
|
|
|
sysret_t sys_sched_setaffinity(pid_t pid, size_t size, void *set)
|
|
{
|
|
void *kset = RT_NULL;
|
|
|
|
if (size <= 0 || size > sizeof(cpu_set_t))
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
if (!lwp_user_accessable((void *)set, size))
|
|
return -EFAULT;
|
|
|
|
kset = kmem_get(size);
|
|
if (kset == RT_NULL)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (lwp_get_from_user(kset, set, size) != size)
|
|
{
|
|
kmem_put(kset);
|
|
return -EINVAL;
|
|
}
|
|
|
|
for (int i = 0;i < size * 8; i++)
|
|
{
|
|
if (CPU_ISSET_S(i, size, kset))
|
|
{
|
|
kmem_put(kset);
|
|
|
|
/**
|
|
* yes it's tricky.
|
|
* But when we talk about 'pid' from GNU libc, it's the 'task-id'
|
|
* aka 'thread->tid' known in kernel.
|
|
*/
|
|
return lwp_setaffinity(pid, i);
|
|
}
|
|
}
|
|
|
|
kmem_put(kset);
|
|
|
|
return -1;
|
|
}
|
|
|
|
sysret_t sys_sched_getaffinity(const pid_t pid, size_t size, void *set)
|
|
{
|
|
#ifdef ARCH_MM_MMU
|
|
LWP_DEF_RETURN_CODE(rc);
|
|
void *mask;
|
|
struct rt_lwp *lwp;
|
|
|
|
if (size <= 0 || size > sizeof(cpu_set_t))
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
if (!lwp_user_accessable(set, size))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
mask = kmem_get(size);
|
|
if (!mask)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
CPU_ZERO_S(size, mask);
|
|
|
|
lwp_pid_lock_take();
|
|
lwp = lwp_from_pid_locked(pid);
|
|
|
|
if (!lwp)
|
|
{
|
|
rc = -ESRCH;
|
|
}
|
|
else
|
|
{
|
|
#ifdef RT_USING_SMP
|
|
if (lwp->bind_cpu == RT_CPUS_NR) /* not bind */
|
|
{
|
|
for(int i = 0; i < RT_CPUS_NR; i++)
|
|
{
|
|
CPU_SET_S(i, size, mask);
|
|
}
|
|
}
|
|
else /* set bind cpu */
|
|
{
|
|
/* TODO: only single-core bindings are now supported of rt-smart */
|
|
CPU_SET_S(lwp->bind_cpu, size, mask);
|
|
}
|
|
#else
|
|
CPU_SET_S(0, size, mask);
|
|
#endif
|
|
|
|
if (lwp_put_to_user(set, mask, size) != size)
|
|
rc = -EFAULT;
|
|
else
|
|
rc = size;
|
|
}
|
|
|
|
lwp_pid_lock_release();
|
|
|
|
kmem_put(mask);
|
|
|
|
LWP_RETURN(rc);
|
|
#else
|
|
return -1;
|
|
#endif
|
|
}
|
|
|
|
sysret_t sys_sysinfo(void *info)
|
|
{
|
|
#ifdef ARCH_MM_MMU
|
|
struct sysinfo kinfo = {0};
|
|
rt_size_t total_pages = 0, free_pages = 0;
|
|
|
|
if (!lwp_user_accessable(info, sizeof(struct sysinfo)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
kinfo.uptime = rt_tick_get_millisecond() / 1000;
|
|
/* TODO: 1, 5, and 15 minute load averages */
|
|
kinfo.loads[0] = kinfo.loads[1] = kinfo.loads[2] = rt_object_get_length(RT_Object_Class_Thread);
|
|
rt_page_get_info(&total_pages, &free_pages);
|
|
kinfo.totalram = total_pages;
|
|
kinfo.freeram = free_pages;
|
|
|
|
/* TODO: implementation procfs, here is counter the lwp number */
|
|
struct lwp_avl_struct *pids = lwp_get_pid_ary();
|
|
for (int index = 0; index < RT_LWP_MAX_NR; index++)
|
|
{
|
|
struct rt_lwp *lwp = (struct rt_lwp *)pids[index].data;
|
|
|
|
if (lwp)
|
|
{
|
|
kinfo.procs++;
|
|
}
|
|
}
|
|
|
|
rt_page_high_get_info(&total_pages, &free_pages);
|
|
kinfo.totalhigh = total_pages;
|
|
kinfo.freehigh = free_pages;
|
|
kinfo.mem_unit = ARCH_PAGE_SIZE;
|
|
|
|
if (lwp_put_to_user(info, &kinfo, sizeof(struct sysinfo)) != sizeof(struct sysinfo))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
return 0;
|
|
#else
|
|
return -1;
|
|
#endif
|
|
}
|
|
|
|
sysret_t sys_sched_setparam(pid_t tid, void *param)
|
|
{
|
|
struct sched_param *sched_param = RT_NULL;
|
|
rt_thread_t thread;
|
|
int ret = -1;
|
|
|
|
if (!lwp_user_accessable(param, sizeof(struct sched_param)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
sched_param = kmem_get(sizeof(struct sched_param));
|
|
if (sched_param == RT_NULL)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (lwp_get_from_user(sched_param, param, sizeof(struct sched_param)) != sizeof(struct sched_param))
|
|
{
|
|
kmem_put(sched_param);
|
|
return -EINVAL;
|
|
}
|
|
|
|
thread = lwp_tid_get_thread_and_inc_ref(tid);
|
|
|
|
if (thread)
|
|
{
|
|
ret = rt_thread_control(thread, RT_THREAD_CTRL_CHANGE_PRIORITY, (void *)&sched_param->sched_priority);
|
|
}
|
|
|
|
lwp_tid_dec_ref(thread);
|
|
|
|
kmem_put(sched_param);
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_sched_yield(void)
|
|
{
|
|
rt_thread_yield();
|
|
return 0;
|
|
}
|
|
|
|
sysret_t sys_sched_getparam(const pid_t tid, void *param)
|
|
{
|
|
struct sched_param *sched_param = RT_NULL;
|
|
rt_thread_t thread;
|
|
int ret = -1;
|
|
|
|
if (!lwp_user_accessable(param, sizeof(struct sched_param)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
sched_param = kmem_get(sizeof(struct sched_param));
|
|
if (sched_param == RT_NULL)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
thread = lwp_tid_get_thread_and_inc_ref(tid);
|
|
|
|
if (thread)
|
|
{
|
|
sched_param->sched_priority = RT_SCHED_PRIV(thread).current_priority;
|
|
ret = 0;
|
|
}
|
|
|
|
lwp_tid_dec_ref(thread);
|
|
|
|
lwp_put_to_user((void *)param, sched_param, sizeof(struct sched_param));
|
|
kmem_put(sched_param);
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_sched_get_priority_max(int policy)
|
|
{
|
|
if(policy < 0)
|
|
{
|
|
SET_ERRNO(EINVAL);
|
|
return -rt_get_errno();
|
|
}
|
|
return RT_THREAD_PRIORITY_MAX;
|
|
}
|
|
|
|
sysret_t sys_sched_get_priority_min(int policy)
|
|
{
|
|
if(policy < 0)
|
|
{
|
|
SET_ERRNO(EINVAL);
|
|
return -rt_get_errno();
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
sysret_t sys_sched_setscheduler(int tid, int policy, void *param)
|
|
{
|
|
sysret_t ret;
|
|
struct sched_param *sched_param = RT_NULL;
|
|
rt_thread_t thread = RT_NULL;
|
|
|
|
if (!lwp_user_accessable(param, sizeof(struct sched_param)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
sched_param = kmem_get(sizeof(struct sched_param));
|
|
if (sched_param == RT_NULL)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (lwp_get_from_user(sched_param, param, sizeof(struct sched_param)) != sizeof(struct sched_param))
|
|
{
|
|
kmem_put(sched_param);
|
|
return -EINVAL;
|
|
}
|
|
|
|
thread = lwp_tid_get_thread_and_inc_ref(tid);
|
|
ret = rt_thread_control(thread, RT_THREAD_CTRL_CHANGE_PRIORITY, (void *)&sched_param->sched_priority);
|
|
lwp_tid_dec_ref(thread);
|
|
|
|
kmem_put(sched_param);
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_sched_getscheduler(int tid)
|
|
{
|
|
rt_thread_t thread = RT_NULL;
|
|
int rtn;
|
|
|
|
thread = lwp_tid_get_thread_and_inc_ref(tid);
|
|
lwp_tid_dec_ref(thread);
|
|
|
|
if (thread)
|
|
{
|
|
rtn = SCHED_RR;
|
|
}
|
|
else
|
|
{
|
|
rtn = -ESRCH;
|
|
}
|
|
|
|
return rtn;
|
|
}
|
|
|
|
sysret_t sys_fsync(int fd)
|
|
{
|
|
int res = fsync(fd);
|
|
if (res < 0)
|
|
res = rt_get_errno();
|
|
return res;
|
|
}
|
|
|
|
mqd_t sys_mq_open(const char *name, int flags, mode_t mode, struct mq_attr *attr)
|
|
{
|
|
mqd_t mqdes;
|
|
sysret_t ret = 0;
|
|
#ifdef ARCH_MM_MMU
|
|
char *kname = RT_NULL;
|
|
rt_size_t len = 0;
|
|
struct mq_attr attr_k;
|
|
|
|
len = lwp_user_strlen(name);
|
|
if (!len)
|
|
return (mqd_t)-EINVAL;
|
|
|
|
kname = (char *)kmem_get(len + 1);
|
|
if (!kname)
|
|
return (mqd_t)-ENOMEM;
|
|
|
|
if (attr == NULL)
|
|
{
|
|
attr_k.mq_maxmsg = 10;
|
|
attr_k.mq_msgsize = 8192;
|
|
attr_k.mq_flags = 0;
|
|
attr = &attr_k;
|
|
}
|
|
else
|
|
{
|
|
if (!lwp_get_from_user(&attr_k, (void *)attr, sizeof(struct mq_attr)))
|
|
return -EINVAL;
|
|
}
|
|
|
|
lwp_get_from_user(kname, (void *)name, len + 1);
|
|
mqdes = mq_open(kname, flags, mode, &attr_k);
|
|
if (mqdes == -1)
|
|
{
|
|
ret = GET_ERRNO();
|
|
}
|
|
lwp_put_to_user(attr, &attr_k, sizeof(struct mq_attr));
|
|
kmem_put(kname);
|
|
#else
|
|
mqdes = mq_open(name, flags, mode, attr);
|
|
#endif
|
|
if (mqdes == -1)
|
|
return (mqd_t)ret;
|
|
else
|
|
return mqdes;
|
|
}
|
|
|
|
sysret_t sys_mq_unlink(const char *name)
|
|
{
|
|
int ret = 0;
|
|
#ifdef ARCH_MM_MMU
|
|
char *kname = RT_NULL;
|
|
rt_size_t len = 0;
|
|
|
|
len = lwp_user_strlen(name);
|
|
if (!len)
|
|
return -EINVAL;
|
|
kname = (char *)kmem_get(len + 1);
|
|
if (!kname)
|
|
return -ENOMEM;
|
|
|
|
lwp_get_from_user(kname, (void *)name, len + 1);
|
|
ret = mq_unlink(kname);
|
|
if (ret < 0)
|
|
{
|
|
ret = GET_ERRNO();
|
|
}
|
|
kmem_put(kname);
|
|
return ret;
|
|
#else
|
|
ret = mq_unlink(name);
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
#endif
|
|
}
|
|
|
|
sysret_t sys_mq_timedsend(mqd_t mqd, const char *msg, size_t len, unsigned prio, const struct timespec *at)
|
|
{
|
|
int ret = 0;
|
|
#ifdef ARCH_MM_MMU
|
|
char *kmsg = RT_NULL;
|
|
struct timespec at_k;
|
|
|
|
kmsg = (char *)kmem_get(len + 1);
|
|
if (!kmsg)
|
|
return -ENOMEM;
|
|
|
|
lwp_get_from_user(&at_k, (void *)at, sizeof(struct timespec));
|
|
lwp_get_from_user(kmsg, (void *)msg, len + 1);
|
|
ret = mq_timedsend(mqd, kmsg, len, prio, &at_k);
|
|
if (ret < 0)
|
|
{
|
|
ret = GET_ERRNO();
|
|
}
|
|
|
|
kmem_put(kmsg);
|
|
|
|
return ret;
|
|
#else
|
|
ret = mq_timedsend(mqd, msg, len, prio, at);
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
#endif
|
|
}
|
|
|
|
sysret_t sys_mq_timedreceive(mqd_t mqd, char *restrict msg, size_t len, unsigned *restrict prio, const struct timespec *restrict at)
|
|
{
|
|
int ret = 0;
|
|
#ifdef ARCH_MM_MMU
|
|
char *restrict kmsg = RT_NULL;
|
|
|
|
struct timespec at_k;
|
|
|
|
kmsg = (char *restrict)kmem_get(len + 1);
|
|
if (!kmsg)
|
|
return -ENOMEM;
|
|
|
|
lwp_get_from_user(kmsg, (void *)msg, len + 1);
|
|
if (at == RT_NULL)
|
|
{
|
|
ret = mq_timedreceive(mqd, kmsg, len, prio, RT_NULL);
|
|
}
|
|
else
|
|
{
|
|
if (!lwp_get_from_user(&at_k, (void *)at, sizeof(struct timespec)))
|
|
return -EINVAL;
|
|
ret = mq_timedreceive(mqd, kmsg, len, prio, &at_k);
|
|
}
|
|
|
|
if (ret > 0)
|
|
lwp_put_to_user(msg, kmsg, len + 1);
|
|
|
|
if (ret < 0)
|
|
{
|
|
ret = GET_ERRNO();
|
|
}
|
|
|
|
kmem_put(kmsg);
|
|
|
|
return ret;
|
|
#else
|
|
ret = mq_timedreceive(mqd, msg, len, prio, at);
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
#endif
|
|
}
|
|
|
|
sysret_t sys_mq_notify(mqd_t mqd, const struct sigevent *sev)
|
|
{
|
|
int ret = 0;
|
|
#ifdef ARCH_MM_MMU
|
|
struct sigevent sev_k;
|
|
lwp_get_from_user(&sev_k, (void *)sev, sizeof(struct timespec));
|
|
ret = mq_notify(mqd, &sev_k);
|
|
#else
|
|
ret = mq_notify(mqd, sev);
|
|
#endif
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_mq_getsetattr(mqd_t mqd, const struct mq_attr *restrict new, struct mq_attr *restrict old)
|
|
{
|
|
int ret = 0;
|
|
#ifdef ARCH_MM_MMU
|
|
size_t size = sizeof(struct mq_attr);
|
|
struct mq_attr *restrict knew = NULL;
|
|
struct mq_attr *restrict kold = NULL;
|
|
|
|
if (new != RT_NULL)
|
|
{
|
|
if (!lwp_user_accessable((void *)new, size))
|
|
return -EFAULT;
|
|
knew = kmem_get(size);
|
|
if (!knew)
|
|
return -ENOMEM;
|
|
lwp_get_from_user(knew, (void *)new, size);
|
|
}
|
|
|
|
if (!lwp_user_accessable((void *)old, size))
|
|
return -EFAULT;
|
|
kold = kmem_get(size);
|
|
if (!kold)
|
|
return -ENOMEM;
|
|
|
|
lwp_get_from_user(kold, (void *)old, size);
|
|
ret = mq_setattr(mqd, knew, kold);
|
|
if (ret != -1)
|
|
lwp_put_to_user(old, kold, size);
|
|
|
|
if (ret < 0)
|
|
{
|
|
ret = GET_ERRNO();
|
|
}
|
|
|
|
kmem_put(kold);
|
|
if (new != RT_NULL)
|
|
kmem_put(knew);
|
|
|
|
return ret;
|
|
#else
|
|
ret = mq_setattr(mqd, new, old);
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
#endif
|
|
}
|
|
|
|
sysret_t sys_mq_close(mqd_t mqd)
|
|
{
|
|
int ret = 0;
|
|
#ifdef ARCH_MM_MMU
|
|
ret = mq_close(mqd);
|
|
#else
|
|
ret = mq_close(mqd);
|
|
#endif
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
#define ICACHE (1<<0)
|
|
#define DCACHE (1<<1)
|
|
#define BCACHE (ICACHE|DCACHE)
|
|
|
|
rt_weak sysret_t sys_cacheflush(void *addr, int size, int cache)
|
|
{
|
|
if (!lwp_user_accessable(addr, size))
|
|
return -EFAULT;
|
|
|
|
if (((size_t)addr < (size_t)addr + size) &&
|
|
((size_t)addr >= USER_VADDR_START) &&
|
|
((size_t)addr + size < USER_VADDR_TOP))
|
|
{
|
|
if ((cache & DCACHE))
|
|
{
|
|
rt_hw_cpu_dcache_clean_and_invalidate(addr, size);
|
|
}
|
|
|
|
if ((cache & ICACHE))
|
|
{
|
|
rt_hw_cpu_icache_invalidate(addr, size);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
return -EFAULT;
|
|
}
|
|
|
|
sysret_t sys_uname(struct utsname *uts)
|
|
{
|
|
struct utsname utsbuff = {0};
|
|
int ret = 0;
|
|
const char *machine;
|
|
|
|
if (!lwp_user_accessable((void *)uts, sizeof(struct utsname)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
rt_strncpy(utsbuff.sysname, "RT-Thread", sizeof(utsbuff.sysname));
|
|
utsbuff.nodename[0] = '\0';
|
|
ret = rt_snprintf(utsbuff.release, sizeof(utsbuff.release), "%u.%u.%u",
|
|
RT_VERSION_MAJOR, RT_VERSION_MINOR, RT_VERSION_PATCH);
|
|
if (ret < 0) {
|
|
return -EIO;
|
|
}
|
|
ret = rt_snprintf(utsbuff.version, sizeof(utsbuff.version), "RT-Thread %u.%u.%u %s %s",
|
|
RT_VERSION_MAJOR, RT_VERSION_MINOR, RT_VERSION_PATCH, __DATE__, __TIME__);
|
|
if (ret < 0) {
|
|
return -EIO;
|
|
}
|
|
|
|
machine = rt_hw_cpu_arch();
|
|
rt_strncpy(utsbuff.machine, machine, sizeof(utsbuff.machine));
|
|
|
|
utsbuff.domainname[0] = '\0';
|
|
lwp_put_to_user(uts, &utsbuff, sizeof utsbuff);
|
|
return 0;
|
|
}
|
|
|
|
sysret_t sys_statfs(const char *path, struct statfs *buf)
|
|
{
|
|
int ret = 0;
|
|
size_t len;
|
|
size_t copy_len;
|
|
char *copy_path;
|
|
struct statfs statfsbuff = {0};
|
|
|
|
if (!lwp_user_accessable((void *)buf, sizeof(struct statfs)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
len = lwp_user_strlen(path);
|
|
if (len <= 0)
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
copy_path = (char*)rt_malloc(len + 1);
|
|
if (!copy_path)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
copy_len = lwp_get_from_user(copy_path, (void*)path, len);
|
|
if (copy_len == 0)
|
|
{
|
|
rt_free(copy_path);
|
|
return -EFAULT;
|
|
}
|
|
copy_path[copy_len] = '\0';
|
|
|
|
ret = _SYS_WRAP(statfs(copy_path, &statfsbuff));
|
|
rt_free(copy_path);
|
|
|
|
if (ret == 0)
|
|
{
|
|
lwp_put_to_user(buf, &statfsbuff, sizeof statfsbuff);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_statfs64(const char *path, size_t sz, struct statfs *buf)
|
|
{
|
|
int ret = 0;
|
|
size_t len;
|
|
size_t copy_len;
|
|
char *copy_path;
|
|
struct statfs statfsbuff = {0};
|
|
|
|
if (!lwp_user_accessable((void *)buf, sizeof(struct statfs)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
if (sz != sizeof(struct statfs)) {
|
|
return -EINVAL;
|
|
}
|
|
|
|
len = lwp_user_strlen(path);
|
|
if (len <= 0)
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
copy_path = (char*)rt_malloc(len + 1);
|
|
if (!copy_path)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
copy_len = lwp_get_from_user(copy_path, (void*)path, len);
|
|
if (copy_len == 0)
|
|
{
|
|
rt_free(copy_path);
|
|
return -EFAULT;
|
|
}
|
|
copy_path[copy_len] = '\0';
|
|
|
|
ret = _SYS_WRAP(statfs(copy_path, &statfsbuff));
|
|
rt_free(copy_path);
|
|
|
|
if (ret == 0)
|
|
{
|
|
lwp_put_to_user(buf, &statfsbuff, sizeof statfsbuff);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_fstatfs(int fd, struct statfs *buf)
|
|
{
|
|
int ret = 0;
|
|
struct statfs statfsbuff = {0};
|
|
|
|
if (!lwp_user_accessable((void *)buf, sizeof(struct statfs)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
ret = _SYS_WRAP(fstatfs(fd, &statfsbuff));
|
|
|
|
if (ret == 0)
|
|
{
|
|
lwp_put_to_user(buf, &statfsbuff, sizeof statfsbuff);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_fstatfs64(int fd, size_t sz, struct statfs *buf)
|
|
{
|
|
int ret = 0;
|
|
struct statfs statfsbuff = {0};
|
|
|
|
if (!lwp_user_accessable((void *)buf, sizeof(struct statfs)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
if (sz != sizeof(struct statfs)) {
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = _SYS_WRAP(fstatfs(fd, &statfsbuff));
|
|
|
|
if (ret == 0)
|
|
{
|
|
lwp_put_to_user(buf, &statfsbuff, sizeof statfsbuff);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_mount(char *source, char *target,
|
|
char *filesystemtype,
|
|
unsigned long mountflags, void *data)
|
|
{
|
|
char *copy_source;
|
|
char *copy_target;
|
|
char *copy_filesystemtype;
|
|
size_t len_source, copy_len_source;
|
|
size_t len_target, copy_len_target;
|
|
size_t len_filesystemtype, copy_len_filesystemtype;
|
|
char *tmp = NULL;
|
|
int ret = 0;
|
|
|
|
len_source = lwp_user_strlen(source);
|
|
if (len_source <= 0)
|
|
return -EINVAL;
|
|
|
|
len_target = lwp_user_strlen(target);
|
|
if (len_target <= 0)
|
|
return -EINVAL;
|
|
|
|
len_filesystemtype = lwp_user_strlen(filesystemtype);
|
|
if (len_filesystemtype <= 0)
|
|
return -EINVAL;
|
|
|
|
copy_source = (char*)rt_malloc(len_source + 1 + len_target + 1 + len_filesystemtype + 1);
|
|
if (!copy_source)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
copy_target = copy_source + len_source + 1;
|
|
copy_filesystemtype = copy_target + len_target + 1;
|
|
|
|
copy_len_source = lwp_get_from_user(copy_source, source, len_source);
|
|
copy_source[copy_len_source] = '\0';
|
|
copy_len_target = lwp_get_from_user(copy_target, target, len_target);
|
|
copy_target[copy_len_target] = '\0';
|
|
copy_len_filesystemtype = lwp_get_from_user(copy_filesystemtype, filesystemtype, len_filesystemtype);
|
|
copy_filesystemtype[copy_len_filesystemtype] = '\0';
|
|
|
|
if (strcmp(copy_filesystemtype, "nfs") == 0)
|
|
{
|
|
tmp = copy_source;
|
|
copy_source = NULL;
|
|
}
|
|
if (strcmp(copy_filesystemtype, "tmp") == 0)
|
|
{
|
|
copy_source = NULL;
|
|
}
|
|
ret = dfs_mount(copy_source, copy_target, copy_filesystemtype, 0, tmp);
|
|
rt_free(copy_source);
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_umount2(char *__special_file, int __flags)
|
|
{
|
|
char *copy_special_file;
|
|
size_t len_special_file, copy_len_special_file;
|
|
int ret = 0;
|
|
|
|
len_special_file = lwp_user_strlen(__special_file);
|
|
if (len_special_file <= 0)
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
copy_special_file = (char*)rt_malloc(len_special_file + 1);
|
|
if (!copy_special_file)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
copy_len_special_file = lwp_get_from_user(copy_special_file, __special_file, len_special_file);
|
|
copy_special_file[copy_len_special_file] = '\0';
|
|
|
|
ret = dfs_unmount(copy_special_file);
|
|
rt_free(copy_special_file);
|
|
|
|
return ret;
|
|
}
|
|
|
|
sysret_t sys_link(const char *existing, const char *new)
|
|
{
|
|
int ret = -1;
|
|
|
|
#ifdef RT_USING_DFS_V2
|
|
#ifdef ARCH_MM_MMU
|
|
int len = 0;
|
|
char *kexisting = RT_NULL;
|
|
char *knew = RT_NULL;
|
|
|
|
len = lwp_user_strlen(existing);
|
|
if (len <= 0)
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
kexisting = (char *)kmem_get(len + 1);
|
|
if (!kexisting)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (lwp_get_from_user(kexisting, (void *)existing, len + 1) != (len + 1))
|
|
{
|
|
kmem_put(kexisting);
|
|
return -EINVAL;
|
|
}
|
|
|
|
len = lwp_user_strlen(new);
|
|
if (len <= 0)
|
|
{
|
|
kmem_put(kexisting);
|
|
return -EFAULT;
|
|
}
|
|
|
|
knew = (char *)kmem_get(len + 1);
|
|
if (!knew)
|
|
{
|
|
kmem_put(kexisting);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (lwp_get_from_user(knew, (void *)new, len + 1) != (len + 1))
|
|
{
|
|
kmem_put(knew);
|
|
kmem_put(kexisting);
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = dfs_file_link(kexisting, knew);
|
|
|
|
kmem_put(knew);
|
|
kmem_put(kexisting);
|
|
#else
|
|
ret = dfs_file_link(existing, new);
|
|
#endif
|
|
#else
|
|
SET_ERRNO(EFAULT);
|
|
#endif
|
|
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_symlink(const char *existing, const char *new)
|
|
{
|
|
int ret = -1;
|
|
|
|
#ifdef ARCH_MM_MMU
|
|
int err;
|
|
|
|
err = lwp_user_strlen(existing);
|
|
if (err <= 0)
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
err = lwp_user_strlen(new);
|
|
if (err <= 0)
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
#endif
|
|
#ifdef RT_USING_DFS_V2
|
|
ret = dfs_file_symlink(existing, new);
|
|
#else
|
|
SET_ERRNO(EFAULT);
|
|
#endif
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_eventfd2(unsigned int count, int flags)
|
|
{
|
|
int ret;
|
|
|
|
ret = eventfd(count, flags);
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
sysret_t sys_epoll_create1(int flags)
|
|
{
|
|
int ret;
|
|
|
|
ret = epoll_create(flags);
|
|
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_epoll_ctl(int fd, int op, int fd2, struct epoll_event *ev)
|
|
{
|
|
int ret = 0;
|
|
struct epoll_event *kev = RT_NULL;
|
|
|
|
if (ev)
|
|
{
|
|
if (!lwp_user_accessable((void *)ev, sizeof(struct epoll_event)))
|
|
return -EFAULT;
|
|
|
|
kev = kmem_get(sizeof(struct epoll_event));
|
|
if (kev == RT_NULL)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (lwp_get_from_user(kev, ev, sizeof(struct epoll_event)) != sizeof(struct epoll_event))
|
|
{
|
|
kmem_put(kev);
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = epoll_ctl(fd, op, fd2, kev);
|
|
|
|
kmem_put(kev);
|
|
}
|
|
else
|
|
{
|
|
ret = epoll_ctl(fd, op, fd2, RT_NULL);
|
|
}
|
|
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_epoll_pwait(int fd,
|
|
struct epoll_event *ev,
|
|
int cnt,
|
|
int to,
|
|
const sigset_t *sigs,
|
|
unsigned long sigsetsize)
|
|
{
|
|
int ret = 0;
|
|
struct epoll_event *kev = RT_NULL;
|
|
sigset_t *ksigs = RT_NULL;
|
|
|
|
if (!lwp_user_accessable((void *)ev, cnt * sizeof(struct epoll_event)))
|
|
return -EFAULT;
|
|
|
|
kev = kmem_get(cnt * sizeof(struct epoll_event));
|
|
if (kev == RT_NULL)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (sigs != RT_NULL)
|
|
{
|
|
if (!lwp_user_accessable((void *)sigs, sizeof(sigset_t)))
|
|
{
|
|
kmem_put(kev);
|
|
return -EFAULT;
|
|
}
|
|
|
|
ksigs = kmem_get(sizeof(sigset_t));
|
|
if (ksigs == RT_NULL)
|
|
{
|
|
kmem_put(kev);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (lwp_get_from_user(ksigs, (void *)sigs, sizeof(sigset_t)) != sizeof(sigset_t))
|
|
{
|
|
kmem_put(kev);
|
|
kmem_put(ksigs);
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
ret = epoll_pwait(fd, kev, cnt, to, ksigs);
|
|
|
|
if (ret > 0)
|
|
{
|
|
lwp_put_to_user((void *)ev, kev, ret * sizeof(struct epoll_event));
|
|
}
|
|
|
|
if (sigs != RT_NULL)
|
|
kmem_put(ksigs);
|
|
|
|
kmem_put(kev);
|
|
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_ftruncate(int fd, size_t length)
|
|
{
|
|
int ret;
|
|
|
|
ret = ftruncate(fd, length);
|
|
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_utimensat(int __fd, const char *__path, const struct timespec __times[2], int __flags)
|
|
{
|
|
#ifdef RT_USING_DFS_V2
|
|
#ifdef ARCH_MM_MMU
|
|
int ret = -1;
|
|
rt_size_t len = 0;
|
|
char *kpath = RT_NULL;
|
|
|
|
len = lwp_user_strlen(__path);
|
|
if (len <= 0)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
kpath = (char *)kmem_get(len + 1);
|
|
if (!kpath)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
lwp_get_from_user(kpath, (void *)__path, len + 1);
|
|
ret = utimensat(__fd, kpath, __times, __flags);
|
|
|
|
kmem_put(kpath);
|
|
|
|
return ret;
|
|
#else
|
|
if (!lwp_user_accessable((void *)__path, 1))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
int ret = utimensat(__fd, __path, __times, __flags);
|
|
return ret;
|
|
#endif
|
|
#else
|
|
return -1;
|
|
#endif
|
|
}
|
|
|
|
sysret_t sys_chmod(const char *pathname, mode_t mode)
|
|
{
|
|
char *copy_file;
|
|
size_t len_file, copy_len_file;
|
|
struct dfs_attr attr = {0};
|
|
int ret = 0;
|
|
|
|
len_file = lwp_user_strlen(pathname);
|
|
if (len_file <= 0)
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
copy_file = (char*)rt_malloc(len_file + 1);
|
|
if (!copy_file)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
copy_len_file = lwp_get_from_user(copy_file, (void *)pathname, len_file);
|
|
|
|
attr.st_mode = mode;
|
|
attr.ia_valid |= ATTR_MODE_SET;
|
|
|
|
copy_file[copy_len_file] = '\0';
|
|
ret = dfs_file_setattr(copy_file, &attr);
|
|
rt_free(copy_file);
|
|
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_chown(const char *pathname, uid_t owner, gid_t group)
|
|
{
|
|
char *copy_file;
|
|
size_t len_file, copy_len_file;
|
|
struct dfs_attr attr = {0};
|
|
int ret = 0;
|
|
|
|
len_file = lwp_user_strlen(pathname);
|
|
if (len_file <= 0)
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
copy_file = (char*)rt_malloc(len_file + 1);
|
|
if (!copy_file)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
copy_len_file = lwp_get_from_user(copy_file, (void *)pathname, len_file);
|
|
|
|
if(owner >= 0)
|
|
{
|
|
attr.st_uid = owner;
|
|
attr.ia_valid |= ATTR_UID_SET;
|
|
}
|
|
|
|
if(group >= 0)
|
|
{
|
|
attr.st_gid = group;
|
|
attr.ia_valid |= ATTR_GID_SET;
|
|
}
|
|
|
|
copy_file[copy_len_file] = '\0';
|
|
ret = dfs_file_setattr(copy_file, &attr);
|
|
rt_free(copy_file);
|
|
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
#include <sys/reboot.h>
|
|
sysret_t sys_reboot(int magic, int magic2, int type)
|
|
{
|
|
sysret_t rc;
|
|
switch (type)
|
|
{
|
|
/* TODO add software poweroff protocols */
|
|
case RB_AUTOBOOT:
|
|
case RB_POWER_OFF:
|
|
rt_hw_cpu_reset();
|
|
break;
|
|
default:
|
|
rc = -ENOSYS;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
ssize_t sys_pread64(int fd, void *buf, int size, size_t offset)
|
|
#ifdef RT_USING_DFS_V2
|
|
{
|
|
ssize_t pread(int fd, void *buf, size_t len, size_t offset);
|
|
#ifdef ARCH_MM_MMU
|
|
ssize_t ret = -1;
|
|
void *kmem = RT_NULL;
|
|
|
|
if (!size)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!lwp_user_accessable((void *)buf, size))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
kmem = kmem_get(size);
|
|
if (!kmem)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
ret = pread(fd, kmem, size, offset);
|
|
if (ret > 0)
|
|
{
|
|
lwp_put_to_user(buf, kmem, ret);
|
|
}
|
|
|
|
if (ret < 0)
|
|
{
|
|
ret = GET_ERRNO();
|
|
}
|
|
|
|
kmem_put(kmem);
|
|
|
|
return ret;
|
|
#else
|
|
if (!lwp_user_accessable((void *)buf, size))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
ssize_t ret = pread(fd, kmem, size, offset);
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
#endif
|
|
}
|
|
#else
|
|
{
|
|
ssize_t ret = -ENOSYS;
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
#endif
|
|
|
|
ssize_t sys_pwrite64(int fd, void *buf, int size, size_t offset)
|
|
#ifdef RT_USING_DFS_V2
|
|
{
|
|
ssize_t pwrite(int fd, const void *buf, size_t len, size_t offset);
|
|
#ifdef ARCH_MM_MMU
|
|
ssize_t ret = -1;
|
|
void *kmem = RT_NULL;
|
|
|
|
if (!size)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!lwp_user_accessable((void *)buf, size))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
kmem = kmem_get(size);
|
|
if (!kmem)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
lwp_get_from_user(kmem, (void *)buf, size);
|
|
|
|
ret = pwrite(fd, kmem, size, offset);
|
|
if (ret < 0)
|
|
{
|
|
ret = GET_ERRNO();
|
|
}
|
|
|
|
kmem_put(kmem);
|
|
|
|
return ret;
|
|
#else
|
|
if (!lwp_user_accessable((void *)buf, size))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
ssize_t ret = pwrite(fd, kmem, size, offset);
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
#endif
|
|
}
|
|
#else
|
|
{
|
|
ssize_t ret = -ENOSYS;
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
#endif
|
|
|
|
sysret_t sys_timerfd_create(int clockid, int flags)
|
|
{
|
|
int ret;
|
|
|
|
ret = timerfd_create(clockid, flags);
|
|
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_timerfd_settime(int fd, int flags, const struct itimerspec *new, struct itimerspec *old)
|
|
{
|
|
int ret = -1;
|
|
struct itimerspec *knew = RT_NULL;
|
|
struct itimerspec *kold = RT_NULL;
|
|
|
|
if (new == RT_NULL)
|
|
return -EINVAL;
|
|
|
|
if (!lwp_user_accessable((void *)new, sizeof(struct itimerspec)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
knew = kmem_get(sizeof(struct itimerspec));
|
|
|
|
if (knew)
|
|
{
|
|
lwp_get_from_user(knew, (void*)new, sizeof(struct itimerspec));
|
|
|
|
if (old)
|
|
{
|
|
if (!lwp_user_accessable((void *)old, sizeof(struct itimerspec)))
|
|
{
|
|
kmem_put(knew);
|
|
return -EFAULT;
|
|
}
|
|
|
|
kold = kmem_get(sizeof(struct itimerspec));
|
|
if (kold == RT_NULL)
|
|
{
|
|
kmem_put(knew);
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
|
|
ret = timerfd_settime(fd, flags, knew, kold);
|
|
|
|
if (old)
|
|
{
|
|
lwp_put_to_user(old, kold, sizeof(*kold));
|
|
kmem_put(kold);
|
|
}
|
|
|
|
kmem_put(knew);
|
|
}
|
|
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_timerfd_gettime(int fd, struct itimerspec *cur)
|
|
{
|
|
int ret = -1;
|
|
struct itimerspec *kcur;
|
|
|
|
if (cur == RT_NULL)
|
|
return -EINVAL;
|
|
|
|
if (!lwp_user_accessable((void *)cur, sizeof(struct itimerspec)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
kcur = kmem_get(sizeof(struct itimerspec));
|
|
|
|
if (kcur)
|
|
{
|
|
lwp_get_from_user(kcur, cur, sizeof(struct itimerspec));
|
|
ret = timerfd_gettime(fd, kcur);
|
|
lwp_put_to_user(cur, kcur, sizeof(struct itimerspec));
|
|
kmem_put(kcur);
|
|
}
|
|
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_signalfd(int fd, const sigset_t *mask, int flags)
|
|
{
|
|
int ret = 0;
|
|
sigset_t *kmask = RT_NULL;
|
|
|
|
#ifdef RT_USING_MUSLLIBC
|
|
if (mask == RT_NULL)
|
|
return -EINVAL;
|
|
|
|
if (!lwp_user_accessable((void *)mask, sizeof(struct itimerspec)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
kmask = kmem_get(sizeof(struct itimerspec));
|
|
|
|
if (kmask)
|
|
{
|
|
if (lwp_get_from_user(kmask, (void *)mask, sizeof(struct itimerspec)) != sizeof(struct itimerspec))
|
|
{
|
|
kmem_put(kmask);
|
|
return -EFAULT;
|
|
}
|
|
|
|
ret = signalfd(fd, mask, flags);
|
|
kmem_put(kmask);
|
|
}
|
|
#endif
|
|
|
|
return (ret < 0 ? GET_ERRNO() : ret);
|
|
}
|
|
|
|
sysret_t sys_memfd_create()
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
sysret_t sys_setitimer(int which, const struct itimerspec *restrict new, struct itimerspec *restrict old)
|
|
{
|
|
sysret_t rc = 0;
|
|
rt_lwp_t lwp = lwp_self();
|
|
struct itimerspec new_value_k;
|
|
struct itimerspec old_value_k;
|
|
|
|
if (lwp_get_from_user(&new_value_k, (void *)new, sizeof(*new)) != sizeof(*new))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
rc = lwp_signal_setitimer(lwp, which, &new_value_k, &old_value_k);
|
|
if (old && lwp_put_to_user(old, (void *)&old_value_k, sizeof old_value_k) != sizeof old_value_k)
|
|
return -EFAULT;
|
|
|
|
return rc;
|
|
}
|
|
|
|
sysret_t sys_set_robust_list(struct robust_list_head *head, size_t len)
|
|
{
|
|
if (len != sizeof(*head))
|
|
return -EINVAL;
|
|
|
|
rt_thread_self()->robust_list = head;
|
|
return 0;
|
|
}
|
|
|
|
sysret_t sys_get_robust_list(int tid, struct robust_list_head **head_ptr, size_t *len_ptr)
|
|
{
|
|
rt_thread_t thread;
|
|
size_t len;
|
|
struct robust_list_head *head;
|
|
|
|
if (!lwp_user_accessable((void *)head_ptr, sizeof(struct robust_list_head *)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
if (!lwp_user_accessable((void *)len_ptr, sizeof(size_t)))
|
|
{
|
|
return -EFAULT;
|
|
}
|
|
|
|
if (tid == 0)
|
|
{
|
|
thread = rt_thread_self();
|
|
head = thread->robust_list;
|
|
}
|
|
else
|
|
{
|
|
thread = lwp_tid_get_thread_and_inc_ref(tid);
|
|
if (thread)
|
|
{
|
|
head = thread->robust_list;
|
|
lwp_tid_dec_ref(thread);
|
|
}
|
|
else
|
|
{
|
|
return -ESRCH;
|
|
}
|
|
}
|
|
|
|
len = sizeof(*(head));
|
|
|
|
if (!lwp_put_to_user(len_ptr, &len, sizeof(size_t)))
|
|
return -EFAULT;
|
|
if (!lwp_put_to_user(head_ptr, &head, sizeof(struct robust_list_head *)))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
const static struct rt_syscall_def func_table[] =
|
|
{
|
|
SYSCALL_SIGN(sys_exit), /* 01 */
|
|
SYSCALL_SIGN(sys_read),
|
|
SYSCALL_SIGN(sys_write),
|
|
SYSCALL_SIGN(sys_lseek),
|
|
SYSCALL_SIGN(sys_open), /* 05 */
|
|
SYSCALL_SIGN(sys_close),
|
|
SYSCALL_SIGN(sys_ioctl),
|
|
SYSCALL_SIGN(sys_fstat),
|
|
SYSCALL_SIGN(sys_poll),
|
|
SYSCALL_SIGN(sys_nanosleep), /* 10 */
|
|
SYSCALL_SIGN(sys_gettimeofday),
|
|
SYSCALL_SIGN(sys_settimeofday),
|
|
SYSCALL_SIGN(sys_exec),
|
|
SYSCALL_SIGN(sys_kill),
|
|
SYSCALL_SIGN(sys_getpid), /* 15 */
|
|
SYSCALL_SIGN(sys_getpriority),
|
|
SYSCALL_SIGN(sys_setpriority),
|
|
SYSCALL_SIGN(sys_sem_create),
|
|
SYSCALL_SIGN(sys_sem_delete),
|
|
SYSCALL_SIGN(sys_sem_take), /* 20 */
|
|
SYSCALL_SIGN(sys_sem_release),
|
|
SYSCALL_SIGN(sys_mutex_create),
|
|
SYSCALL_SIGN(sys_mutex_delete),
|
|
SYSCALL_SIGN(sys_mutex_take),
|
|
SYSCALL_SIGN(sys_mutex_release), /* 25 */
|
|
SYSCALL_SIGN(sys_event_create),
|
|
SYSCALL_SIGN(sys_event_delete),
|
|
SYSCALL_SIGN(sys_event_send),
|
|
SYSCALL_SIGN(sys_event_recv),
|
|
SYSCALL_SIGN(sys_mb_create), /* 30 */
|
|
SYSCALL_SIGN(sys_mb_delete),
|
|
SYSCALL_SIGN(sys_mb_send),
|
|
SYSCALL_SIGN(sys_mb_send_wait),
|
|
SYSCALL_SIGN(sys_mb_recv),
|
|
SYSCALL_SIGN(sys_mq_create), /* 35 */
|
|
SYSCALL_SIGN(sys_mq_delete),
|
|
SYSCALL_SIGN(sys_mq_send),
|
|
SYSCALL_SIGN(sys_mq_urgent),
|
|
SYSCALL_SIGN(sys_mq_recv),
|
|
SYSCALL_SIGN(sys_thread_create), /* 40 */
|
|
SYSCALL_SIGN(sys_thread_delete),
|
|
SYSCALL_SIGN(sys_thread_startup),
|
|
SYSCALL_SIGN(sys_thread_self),
|
|
SYSCALL_SIGN(sys_channel_open),
|
|
SYSCALL_SIGN(sys_channel_close), /* 45 */
|
|
SYSCALL_SIGN(sys_channel_send),
|
|
SYSCALL_SIGN(sys_channel_send_recv_timeout),
|
|
SYSCALL_SIGN(sys_channel_reply),
|
|
SYSCALL_SIGN(sys_channel_recv_timeout),
|
|
SYSCALL_SIGN(sys_enter_critical), /* 50 */
|
|
SYSCALL_SIGN(sys_exit_critical),
|
|
|
|
SYSCALL_USPACE(SYSCALL_SIGN(sys_brk)),
|
|
SYSCALL_USPACE(SYSCALL_SIGN(sys_mmap2)),
|
|
SYSCALL_USPACE(SYSCALL_SIGN(sys_munmap)),
|
|
#ifdef ARCH_MM_MMU
|
|
SYSCALL_USPACE(SYSCALL_SIGN(sys_shmget)), /* 55 */
|
|
SYSCALL_USPACE(SYSCALL_SIGN(sys_shmrm)),
|
|
SYSCALL_USPACE(SYSCALL_SIGN(sys_shmat)),
|
|
SYSCALL_USPACE(SYSCALL_SIGN(sys_shmdt)),
|
|
#else
|
|
#ifdef RT_LWP_USING_SHM
|
|
SYSCALL_SIGN(sys_shm_alloc), /* 55 */
|
|
SYSCALL_SIGN(sys_shm_free),
|
|
SYSCALL_SIGN(sys_shm_retain),
|
|
SYSCALL_SIGN(sys_notimpl),
|
|
#else
|
|
SYSCALL_SIGN(sys_notimpl), /* 55 */
|
|
SYSCALL_SIGN(sys_notimpl),
|
|
SYSCALL_SIGN(sys_notimpl),
|
|
SYSCALL_SIGN(sys_notimpl),
|
|
#endif /* RT_LWP_USING_SHM */
|
|
#endif /* ARCH_MM_MMU */
|
|
SYSCALL_SIGN(sys_device_init),
|
|
SYSCALL_SIGN(sys_device_register), /* 60 */
|
|
SYSCALL_SIGN(sys_device_control),
|
|
SYSCALL_SIGN(sys_device_find),
|
|
SYSCALL_SIGN(sys_device_open),
|
|
SYSCALL_SIGN(sys_device_close),
|
|
SYSCALL_SIGN(sys_device_read), /* 65 */
|
|
SYSCALL_SIGN(sys_device_write),
|
|
|
|
SYSCALL_SIGN(sys_stat),
|
|
SYSCALL_SIGN(sys_thread_find),
|
|
|
|
SYSCALL_NET(SYSCALL_SIGN(sys_accept)),
|
|
SYSCALL_NET(SYSCALL_SIGN(sys_bind)), /* 70 */
|
|
SYSCALL_NET(SYSCALL_SIGN(sys_shutdown)),
|
|
SYSCALL_NET(SYSCALL_SIGN(sys_getpeername)),
|
|
SYSCALL_NET(SYSCALL_SIGN(sys_getsockname)),
|
|
SYSCALL_NET(SYSCALL_SIGN(sys_getsockopt)),
|
|
SYSCALL_NET(SYSCALL_SIGN(sys_setsockopt)), /* 75 */
|
|
SYSCALL_NET(SYSCALL_SIGN(sys_connect)),
|
|
SYSCALL_NET(SYSCALL_SIGN(sys_listen)),
|
|
SYSCALL_NET(SYSCALL_SIGN(sys_recv)),
|
|
SYSCALL_NET(SYSCALL_SIGN(sys_recvfrom)),
|
|
SYSCALL_NET(SYSCALL_SIGN(sys_send)), /* 80 */
|
|
SYSCALL_NET(SYSCALL_SIGN(sys_sendto)),
|
|
SYSCALL_NET(SYSCALL_SIGN(sys_socket)),
|
|
|
|
SYSCALL_NET(SYSCALL_SIGN(sys_closesocket)),
|
|
SYSCALL_NET(SYSCALL_SIGN(sys_getaddrinfo)),
|
|
SYSCALL_NET(SYSCALL_SIGN(sys_gethostbyname2_r)), /* 85 */
|
|
|
|
SYSCALL_NET(SYSCALL_SIGN(sys_sendmsg)),
|
|
SYSCALL_NET(SYSCALL_SIGN(sys_recvmsg)),
|
|
SYSCALL_SIGN(sys_notimpl), //network,
|
|
SYSCALL_SIGN(sys_notimpl), //network,
|
|
SYSCALL_SIGN(sys_notimpl), //network, /* 90 */
|
|
SYSCALL_SIGN(sys_notimpl), //network,
|
|
SYSCALL_SIGN(sys_notimpl), //network,
|
|
SYSCALL_SIGN(sys_notimpl), //network,
|
|
|
|
#ifdef RT_USING_DFS
|
|
SYSCALL_SIGN(sys_select),
|
|
#else
|
|
SYSCALL_SIGN(sys_notimpl),
|
|
#endif
|
|
|
|
SYSCALL_SIGN(sys_notimpl), //SYSCALL_SIGN(sys_hw_interrupt_disable), /* 95 */
|
|
SYSCALL_SIGN(sys_notimpl), //SYSCALL_SIGN(sys_hw_interrupt_enable),
|
|
|
|
SYSCALL_SIGN(sys_tick_get),
|
|
SYSCALL_SIGN(sys_exit_group),
|
|
|
|
SYSCALL_SIGN(sys_notimpl), //rt_delayed_work_init,
|
|
SYSCALL_SIGN(sys_notimpl), //rt_work_submit, /* 100 */
|
|
SYSCALL_SIGN(sys_notimpl), //rt_wqueue_wakeup,
|
|
SYSCALL_SIGN(sys_thread_mdelay),
|
|
SYSCALL_SIGN(sys_sigaction),
|
|
SYSCALL_SIGN(sys_sigprocmask),
|
|
SYSCALL_SIGN(sys_tkill), /* 105 */
|
|
SYSCALL_SIGN(sys_thread_sigprocmask),
|
|
#ifdef ARCH_MM_MMU
|
|
SYSCALL_SIGN(sys_cacheflush),
|
|
SYSCALL_SIGN(sys_notimpl),
|
|
SYSCALL_SIGN(sys_notimpl),
|
|
#else
|
|
SYSCALL_SIGN(sys_notimpl),
|
|
SYSCALL_SIGN(sys_lwp_sighandler_set),
|
|
SYSCALL_SIGN(sys_thread_sighandler_set),
|
|
#endif
|
|
SYSCALL_SIGN(sys_waitpid), /* 110 */
|
|
|
|
SYSCALL_SIGN(sys_rt_timer_create),
|
|
SYSCALL_SIGN(sys_rt_timer_delete),
|
|
SYSCALL_SIGN(sys_rt_timer_start),
|
|
SYSCALL_SIGN(sys_rt_timer_stop),
|
|
SYSCALL_SIGN(sys_rt_timer_control), /* 115 */
|
|
SYSCALL_SIGN(sys_getcwd),
|
|
SYSCALL_SIGN(sys_chdir),
|
|
SYSCALL_SIGN(sys_unlink),
|
|
SYSCALL_SIGN(sys_mkdir),
|
|
SYSCALL_SIGN(sys_rmdir), /* 120 */
|
|
SYSCALL_SIGN(sys_getdents),
|
|
SYSCALL_SIGN(sys_get_errno),
|
|
#ifdef ARCH_MM_MMU
|
|
SYSCALL_SIGN(sys_set_thread_area),
|
|
SYSCALL_SIGN(sys_set_tid_address),
|
|
#else
|
|
SYSCALL_SIGN(sys_notimpl),
|
|
SYSCALL_SIGN(sys_notimpl),
|
|
#endif
|
|
SYSCALL_SIGN(sys_access), /* 125 */
|
|
SYSCALL_SIGN(sys_pipe),
|
|
SYSCALL_SIGN(sys_clock_settime),
|
|
SYSCALL_SIGN(sys_clock_gettime),
|
|
SYSCALL_SIGN(sys_clock_getres),
|
|
SYSCALL_USPACE(SYSCALL_SIGN(sys_clone)), /* 130 */
|
|
SYSCALL_USPACE(SYSCALL_SIGN(sys_futex)),
|
|
SYSCALL_SIGN(sys_notimpl), /* discarded: sys_pmutex */
|
|
SYSCALL_SIGN(sys_dup),
|
|
SYSCALL_SIGN(sys_dup2),
|
|
SYSCALL_SIGN(sys_rename), /* 135 */
|
|
SYSCALL_USPACE(SYSCALL_SIGN(sys_fork)),
|
|
SYSCALL_USPACE(SYSCALL_SIGN(sys_execve)),
|
|
SYSCALL_USPACE(SYSCALL_SIGN(sys_vfork)),
|
|
SYSCALL_SIGN(sys_gettid),
|
|
SYSCALL_SIGN(sys_prlimit64), /* 140 */
|
|
SYSCALL_SIGN(sys_getrlimit),
|
|
SYSCALL_SIGN(sys_setrlimit),
|
|
SYSCALL_SIGN(sys_setsid),
|
|
SYSCALL_SIGN(sys_getrandom),
|
|
SYSCALL_SIGN(sys_readlink), /* 145 */
|
|
SYSCALL_USPACE(SYSCALL_SIGN(sys_mremap)),
|
|
SYSCALL_USPACE(SYSCALL_SIGN(sys_madvise)),
|
|
SYSCALL_SIGN(sys_sched_setparam),
|
|
SYSCALL_SIGN(sys_sched_getparam),
|
|
SYSCALL_SIGN(sys_sched_get_priority_max), /* 150 */
|
|
SYSCALL_SIGN(sys_sched_get_priority_min),
|
|
SYSCALL_SIGN(sys_sched_setscheduler),
|
|
SYSCALL_SIGN(sys_sched_getscheduler),
|
|
SYSCALL_SIGN(sys_sched_setaffinity),
|
|
SYSCALL_SIGN(sys_fsync), /* 155 */
|
|
SYSCALL_SIGN(sys_clock_nanosleep),
|
|
SYSCALL_SIGN(sys_timer_create),
|
|
SYSCALL_SIGN(sys_timer_delete),
|
|
SYSCALL_SIGN(sys_timer_settime),
|
|
SYSCALL_SIGN(sys_timer_gettime), /* 160 */
|
|
SYSCALL_SIGN(sys_timer_getoverrun),
|
|
SYSCALL_SIGN(sys_mq_open),
|
|
SYSCALL_SIGN(sys_mq_unlink),
|
|
SYSCALL_SIGN(sys_mq_timedsend),
|
|
SYSCALL_SIGN(sys_mq_timedreceive), /* 165 */
|
|
SYSCALL_SIGN(sys_mq_notify),
|
|
SYSCALL_SIGN(sys_mq_getsetattr),
|
|
SYSCALL_SIGN(sys_mq_close),
|
|
SYSCALL_SIGN(sys_lstat),
|
|
SYSCALL_SIGN(sys_uname), /* 170 */
|
|
SYSCALL_SIGN(sys_statfs),
|
|
SYSCALL_SIGN(sys_statfs64),
|
|
SYSCALL_SIGN(sys_fstatfs),
|
|
SYSCALL_SIGN(sys_fstatfs64),
|
|
SYSCALL_SIGN(sys_openat), /* 175 */
|
|
SYSCALL_SIGN(sys_mount),
|
|
SYSCALL_SIGN(sys_umount2),
|
|
SYSCALL_SIGN(sys_link),
|
|
SYSCALL_SIGN(sys_symlink),
|
|
SYSCALL_SIGN(sys_sched_getaffinity), /* 180 */
|
|
SYSCALL_SIGN(sys_sysinfo),
|
|
SYSCALL_SIGN(sys_chmod),
|
|
SYSCALL_SIGN(sys_reboot),
|
|
SYSCALL_SIGN(sys_sched_yield),
|
|
SYSCALL_SIGN(sys_pread64), /* 185 */
|
|
SYSCALL_SIGN(sys_pwrite64),
|
|
SYSCALL_SIGN(sys_sigpending),
|
|
SYSCALL_SIGN(sys_sigtimedwait),
|
|
SYSCALL_SIGN(sys_notimpl),
|
|
SYSCALL_SIGN(sys_notimpl), /* 190 */
|
|
SYSCALL_SIGN(sys_eventfd2),
|
|
SYSCALL_SIGN(sys_epoll_create1),
|
|
SYSCALL_SIGN(sys_epoll_ctl),
|
|
SYSCALL_SIGN(sys_epoll_pwait),
|
|
SYSCALL_SIGN(sys_notimpl), /* 195 */
|
|
SYSCALL_SIGN(sys_timerfd_create),
|
|
SYSCALL_SIGN(sys_timerfd_settime),
|
|
SYSCALL_SIGN(sys_timerfd_gettime),
|
|
SYSCALL_SIGN(sys_signalfd),
|
|
SYSCALL_SIGN(sys_memfd_create), /* 200 */
|
|
SYSCALL_SIGN(sys_ftruncate),
|
|
SYSCALL_SIGN(sys_setitimer),
|
|
SYSCALL_SIGN(sys_utimensat),
|
|
#ifdef RT_USING_POSIX_SOCKET
|
|
SYSCALL_SIGN(sys_syslog),
|
|
SYSCALL_SIGN(sys_socketpair), /* 205 */
|
|
#else
|
|
SYSCALL_SIGN(sys_notimpl),
|
|
SYSCALL_SIGN(sys_notimpl), /* 205 */
|
|
#endif
|
|
SYSCALL_SIGN(sys_wait4),
|
|
SYSCALL_SIGN(sys_set_robust_list),
|
|
SYSCALL_SIGN(sys_get_robust_list),
|
|
SYSCALL_SIGN(sys_setpgid),
|
|
SYSCALL_SIGN(sys_getpgid), /* 210 */
|
|
SYSCALL_SIGN(sys_getsid),
|
|
SYSCALL_SIGN(sys_getppid),
|
|
SYSCALL_SIGN(sys_fchdir),
|
|
SYSCALL_SIGN(sys_chown),
|
|
};
|
|
|
|
const void *lwp_get_sys_api(rt_uint32_t number)
|
|
{
|
|
const void *func = (const void *)sys_notimpl;
|
|
|
|
if (number == 0xff)
|
|
{
|
|
func = (void *)sys_log;
|
|
}
|
|
else
|
|
{
|
|
number -= 1;
|
|
if (number < sizeof(func_table) / sizeof(func_table[0]))
|
|
{
|
|
func = func_table[number].func;
|
|
}
|
|
else
|
|
{
|
|
if (__sys_log_enable)
|
|
{
|
|
LOG_I("Unimplement syscall %d", number);
|
|
}
|
|
}
|
|
}
|
|
|
|
return func;
|
|
}
|
|
|
|
const char *lwp_get_syscall_name(rt_uint32_t number)
|
|
{
|
|
const char *name = "sys_notimpl";
|
|
|
|
if (number == 0xff)
|
|
{
|
|
name = "sys_log";
|
|
}
|
|
else
|
|
{
|
|
number -= 1;
|
|
if (number < sizeof(func_table) / sizeof(func_table[0]))
|
|
{
|
|
name = (char*)func_table[number].name;
|
|
}
|
|
else
|
|
{
|
|
if (__sys_log_enable)
|
|
{
|
|
LOG_I("Unimplement syscall %d", number);
|
|
}
|
|
}
|
|
}
|
|
|
|
// skip sys_
|
|
return name;
|
|
}
|