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/*
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* QEMU System Emulator
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "hw/hw.h" |
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#include "hw/boards.h" |
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#include "hw/usb.h" |
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#include "hw/pcmcia.h" |
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#include "hw/pc.h" |
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#include "hw/audiodev.h" |
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#include "hw/isa.h" |
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#include "hw/baum.h" |
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#include "hw/bt.h" |
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#include "net.h" |
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#include "console.h" |
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#include "sysemu.h" |
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#include "gdbstub.h" |
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#include "qemu-timer.h" |
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#include "qemu-char.h" |
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#include "block.h" |
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#include "audio/audio.h" |
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|
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#include <unistd.h> |
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#include <fcntl.h> |
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#include <signal.h> |
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#include <time.h> |
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#include <errno.h> |
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#include <sys/time.h> |
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#include <zlib.h> |
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|
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#ifndef _WIN32
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#include <sys/times.h> |
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#include <sys/wait.h> |
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#include <termios.h> |
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#include <sys/poll.h> |
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#include <sys/mman.h> |
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#include <sys/ioctl.h> |
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#include <sys/socket.h> |
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#include <netinet/in.h> |
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#include <dirent.h> |
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#include <netdb.h> |
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#include <sys/select.h> |
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#include <arpa/inet.h> |
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#ifdef _BSD
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#include <sys/stat.h> |
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#if !defined(__APPLE__) && !defined(__OpenBSD__)
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#include <libutil.h> |
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#endif
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#ifdef __OpenBSD__
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#include <net/if.h> |
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#endif
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#elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
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#include <freebsd/stdlib.h> |
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#else
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#ifndef __sun__
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#include <linux/if.h> |
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#include <linux/if_tun.h> |
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#include <pty.h> |
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#include <malloc.h> |
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#include <linux/rtc.h> |
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/* For the benefit of older linux systems which don't supply it,
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we use a local copy of hpet.h. */
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/* #include <linux/hpet.h> */
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#include "hpet.h" |
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#include <linux/ppdev.h> |
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#include <linux/parport.h> |
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#else
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#include <sys/stat.h> |
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#include <sys/ethernet.h> |
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#include <sys/sockio.h> |
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#include <netinet/arp.h> |
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#include <netinet/in.h> |
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#include <netinet/in_systm.h> |
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#include <netinet/ip.h> |
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#include <netinet/ip_icmp.h> // must come after ip.h |
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#include <netinet/udp.h> |
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#include <netinet/tcp.h> |
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#include <net/if.h> |
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#include <syslog.h> |
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#include <stropts.h> |
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#endif
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#endif
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#endif
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#include "qemu_socket.h" |
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#if defined(CONFIG_SLIRP)
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#include "libslirp.h" |
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#endif
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#if defined(__OpenBSD__)
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#include <util.h> |
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#endif
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#if defined(CONFIG_VDE)
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#include <libvdeplug.h> |
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#endif
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#ifdef _WIN32
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#include <malloc.h> |
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#include <sys/timeb.h> |
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#include <mmsystem.h> |
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#define getopt_long_only getopt_long
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#define memalign(align, size) malloc(size)
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#endif
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#ifdef CONFIG_SDL
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#ifdef __APPLE__
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#include <SDL/SDL.h> |
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#endif
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#endif /* CONFIG_SDL */ |
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#ifdef CONFIG_COCOA
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#undef main
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#define main qemu_main
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#endif /* CONFIG_COCOA */ |
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#include "disas.h" |
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#include "exec-all.h" |
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#define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup" |
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#define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown" |
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#ifdef __sun__
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#define SMBD_COMMAND "/usr/sfw/sbin/smbd" |
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#else
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#define SMBD_COMMAND "/usr/sbin/smbd" |
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#endif
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//#define DEBUG_UNUSED_IOPORT
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//#define DEBUG_IOPORT
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#ifdef TARGET_PPC
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#define DEFAULT_RAM_SIZE 144 |
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#else
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#define DEFAULT_RAM_SIZE 128 |
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#endif
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/* Max number of USB devices that can be specified on the commandline. */
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#define MAX_USB_CMDLINE 8 |
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/* XXX: use a two level table to limit memory usage */
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#define MAX_IOPORTS 65536 |
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const char *bios_dir = CONFIG_QEMU_SHAREDIR; |
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const char *bios_name = NULL; |
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void *ioport_opaque[MAX_IOPORTS];
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IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS];
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IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS];
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/* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
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to store the VM snapshots */
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DriveInfo drives_table[MAX_DRIVES+1];
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int nb_drives;
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/* point to the block driver where the snapshots are managed */
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BlockDriverState *bs_snapshots; |
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int vga_ram_size;
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enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
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static DisplayState display_state;
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int nographic;
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int curses;
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const char* keyboard_layout = NULL; |
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int64_t ticks_per_sec; |
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ram_addr_t ram_size; |
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int pit_min_timer_count = 0; |
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int nb_nics;
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NICInfo nd_table[MAX_NICS]; |
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int vm_running;
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static int rtc_utc = 1; |
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static int rtc_date_offset = -1; /* -1 means no change */ |
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int cirrus_vga_enabled = 1; |
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int vmsvga_enabled = 0; |
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#ifdef TARGET_SPARC
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int graphic_width = 1024; |
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int graphic_height = 768; |
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int graphic_depth = 8; |
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#else
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int graphic_width = 800; |
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int graphic_height = 600; |
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int graphic_depth = 15; |
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#endif
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int full_screen = 0; |
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int no_frame = 0; |
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int no_quit = 0; |
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CharDriverState *serial_hds[MAX_SERIAL_PORTS]; |
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CharDriverState *parallel_hds[MAX_PARALLEL_PORTS]; |
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#ifdef TARGET_I386
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int win2k_install_hack = 0; |
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#endif
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int usb_enabled = 0; |
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static VLANState *first_vlan;
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int smp_cpus = 1; |
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const char *vnc_display; |
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#if defined(TARGET_SPARC)
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#define MAX_CPUS 16 |
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#elif defined(TARGET_I386)
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#define MAX_CPUS 255 |
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#else
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#define MAX_CPUS 1 |
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#endif
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int acpi_enabled = 1; |
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int fd_bootchk = 1; |
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int no_reboot = 0; |
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int no_shutdown = 0; |
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int cursor_hide = 1; |
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int graphic_rotate = 0; |
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int daemonize = 0; |
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const char *option_rom[MAX_OPTION_ROMS]; |
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int nb_option_roms;
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int semihosting_enabled = 0; |
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int autostart = 1; |
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#ifdef TARGET_ARM
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int old_param = 0; |
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#endif
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const char *qemu_name; |
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int alt_grab = 0; |
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#ifdef TARGET_SPARC
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unsigned int nb_prom_envs = 0; |
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const char *prom_envs[MAX_PROM_ENVS]; |
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#endif
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int nb_drives_opt;
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struct drive_opt {
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const char *file; |
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char opt[1024]; |
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} drives_opt[MAX_DRIVES]; |
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|
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static CPUState *cur_cpu;
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static CPUState *next_cpu;
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static int event_pending = 1; |
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/* Conversion factor from emulated instructions to virtual clock ticks. */
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static int icount_time_shift; |
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/* Arbitrarily pick 1MIPS as the minimum allowable speed. */
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#define MAX_ICOUNT_SHIFT 10 |
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/* Compensate for varying guest execution speed. */
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static int64_t qemu_icount_bias;
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QEMUTimer *icount_rt_timer; |
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QEMUTimer *icount_vm_timer; |
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uint8_t qemu_uuid[16];
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#define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR) |
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/***********************************************************/
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/* x86 ISA bus support */
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|
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target_phys_addr_t isa_mem_base = 0;
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PicState2 *isa_pic; |
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|
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static IOPortReadFunc default_ioport_readb, default_ioport_readw, default_ioport_readl;
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static IOPortWriteFunc default_ioport_writeb, default_ioport_writew, default_ioport_writel;
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static uint32_t ioport_read(int index, uint32_t address) |
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{
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static IOPortReadFunc *default_func[3] = { |
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default_ioport_readb, |
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default_ioport_readw, |
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default_ioport_readl |
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}; |
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IOPortReadFunc *func = ioport_read_table[index][address]; |
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if (!func)
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func = default_func[index]; |
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return func(ioport_opaque[address], address);
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} |
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static void ioport_write(int index, uint32_t address, uint32_t data) |
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{
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static IOPortWriteFunc *default_func[3] = { |
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default_ioport_writeb, |
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default_ioport_writew, |
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default_ioport_writel |
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}; |
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IOPortWriteFunc *func = ioport_write_table[index][address]; |
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if (!func)
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func = default_func[index]; |
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func(ioport_opaque[address], address, data); |
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} |
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|
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static uint32_t default_ioport_readb(void *opaque, uint32_t address) |
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{
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#ifdef DEBUG_UNUSED_IOPORT
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fprintf(stderr, "unused inb: port=0x%04x\n", address);
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#endif
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return 0xff; |
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} |
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|
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static void default_ioport_writeb(void *opaque, uint32_t address, uint32_t data) |
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{
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#ifdef DEBUG_UNUSED_IOPORT
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fprintf(stderr, "unused outb: port=0x%04x data=0x%02x\n", address, data);
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#endif
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} |
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/* default is to make two byte accesses */
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static uint32_t default_ioport_readw(void *opaque, uint32_t address) |
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{
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uint32_t data; |
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data = ioport_read(0, address);
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address = (address + 1) & (MAX_IOPORTS - 1); |
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data |= ioport_read(0, address) << 8; |
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return data;
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} |
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|
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static void default_ioport_writew(void *opaque, uint32_t address, uint32_t data) |
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{
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ioport_write(0, address, data & 0xff); |
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address = (address + 1) & (MAX_IOPORTS - 1); |
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ioport_write(0, address, (data >> 8) & 0xff); |
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} |
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|
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static uint32_t default_ioport_readl(void *opaque, uint32_t address) |
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{
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#ifdef DEBUG_UNUSED_IOPORT
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fprintf(stderr, "unused inl: port=0x%04x\n", address);
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#endif
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return 0xffffffff; |
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} |
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|
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static void default_ioport_writel(void *opaque, uint32_t address, uint32_t data) |
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{
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#ifdef DEBUG_UNUSED_IOPORT
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fprintf(stderr, "unused outl: port=0x%04x data=0x%02x\n", address, data);
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#endif
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} |
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|
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/* size is the word size in byte */
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int register_ioport_read(int start, int length, int size, |
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IOPortReadFunc *func, void *opaque)
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{
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int i, bsize;
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|
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if (size == 1) { |
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bsize = 0;
|
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} else if (size == 2) { |
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bsize = 1;
|
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} else if (size == 4) { |
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bsize = 2;
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} else {
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hw_error("register_ioport_read: invalid size");
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return -1; |
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} |
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for(i = start; i < start + length; i += size) {
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ioport_read_table[bsize][i] = func; |
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if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque) |
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hw_error("register_ioport_read: invalid opaque");
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ioport_opaque[i] = opaque; |
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} |
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return 0; |
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} |
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|
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/* size is the word size in byte */
|
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int register_ioport_write(int start, int length, int size, |
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IOPortWriteFunc *func, void *opaque)
|
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{
|
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int i, bsize;
|
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|
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if (size == 1) { |
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bsize = 0;
|
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} else if (size == 2) { |
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bsize = 1;
|
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} else if (size == 4) { |
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bsize = 2;
|
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} else {
|
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hw_error("register_ioport_write: invalid size");
|
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return -1; |
| 385 |
} |
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for(i = start; i < start + length; i += size) {
|
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ioport_write_table[bsize][i] = func; |
| 388 |
if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque) |
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hw_error("register_ioport_write: invalid opaque");
|
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ioport_opaque[i] = opaque; |
| 391 |
} |
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return 0; |
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} |
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|
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void isa_unassign_ioport(int start, int length) |
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{
|
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int i;
|
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|
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for(i = start; i < start + length; i++) {
|
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ioport_read_table[0][i] = default_ioport_readb;
|
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ioport_read_table[1][i] = default_ioport_readw;
|
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ioport_read_table[2][i] = default_ioport_readl;
|
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|
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ioport_write_table[0][i] = default_ioport_writeb;
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ioport_write_table[1][i] = default_ioport_writew;
|
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ioport_write_table[2][i] = default_ioport_writel;
|
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} |
| 408 |
} |
| 409 |
|
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/***********************************************************/
|
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|
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void cpu_outb(CPUState *env, int addr, int val) |
| 413 |
{
|
| 414 |
#ifdef DEBUG_IOPORT
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if (loglevel & CPU_LOG_IOPORT)
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fprintf(logfile, "outb: %04x %02x\n", addr, val);
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#endif
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ioport_write(0, addr, val);
|
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#ifdef USE_KQEMU
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| 420 |
if (env)
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env->last_io_time = cpu_get_time_fast(); |
| 422 |
#endif
|
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} |
| 424 |
|
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void cpu_outw(CPUState *env, int addr, int val) |
| 426 |
{
|
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#ifdef DEBUG_IOPORT
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| 428 |
if (loglevel & CPU_LOG_IOPORT)
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fprintf(logfile, "outw: %04x %04x\n", addr, val);
|
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#endif
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ioport_write(1, addr, val);
|
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#ifdef USE_KQEMU
|
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if (env)
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env->last_io_time = cpu_get_time_fast(); |
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#endif
|
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} |
| 437 |
|
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void cpu_outl(CPUState *env, int addr, int val) |
| 439 |
{
|
| 440 |
#ifdef DEBUG_IOPORT
|
| 441 |
if (loglevel & CPU_LOG_IOPORT)
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fprintf(logfile, "outl: %04x %08x\n", addr, val);
|
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#endif
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ioport_write(2, addr, val);
|
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#ifdef USE_KQEMU
|
| 446 |
if (env)
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env->last_io_time = cpu_get_time_fast(); |
| 448 |
#endif
|
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} |
| 450 |
|
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int cpu_inb(CPUState *env, int addr) |
| 452 |
{
|
| 453 |
int val;
|
| 454 |
val = ioport_read(0, addr);
|
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#ifdef DEBUG_IOPORT
|
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if (loglevel & CPU_LOG_IOPORT)
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fprintf(logfile, "inb : %04x %02x\n", addr, val);
|
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#endif
|
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#ifdef USE_KQEMU
|
| 460 |
if (env)
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env->last_io_time = cpu_get_time_fast(); |
| 462 |
#endif
|
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return val;
|
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} |
| 465 |
|
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int cpu_inw(CPUState *env, int addr) |
| 467 |
{
|
| 468 |
int val;
|
| 469 |
val = ioport_read(1, addr);
|
| 470 |
#ifdef DEBUG_IOPORT
|
| 471 |
if (loglevel & CPU_LOG_IOPORT)
|
| 472 |
fprintf(logfile, "inw : %04x %04x\n", addr, val);
|
| 473 |
#endif
|
| 474 |
#ifdef USE_KQEMU
|
| 475 |
if (env)
|
| 476 |
env->last_io_time = cpu_get_time_fast(); |
| 477 |
#endif
|
| 478 |
return val;
|
| 479 |
} |
| 480 |
|
| 481 |
int cpu_inl(CPUState *env, int addr) |
| 482 |
{
|
| 483 |
int val;
|
| 484 |
val = ioport_read(2, addr);
|
| 485 |
#ifdef DEBUG_IOPORT
|
| 486 |
if (loglevel & CPU_LOG_IOPORT)
|
| 487 |
fprintf(logfile, "inl : %04x %08x\n", addr, val);
|
| 488 |
#endif
|
| 489 |
#ifdef USE_KQEMU
|
| 490 |
if (env)
|
| 491 |
env->last_io_time = cpu_get_time_fast(); |
| 492 |
#endif
|
| 493 |
return val;
|
| 494 |
} |
| 495 |
|
| 496 |
/***********************************************************/
|
| 497 |
void hw_error(const char *fmt, ...) |
| 498 |
{
|
| 499 |
va_list ap; |
| 500 |
CPUState *env; |
| 501 |
|
| 502 |
va_start(ap, fmt); |
| 503 |
fprintf(stderr, "qemu: hardware error: ");
|
| 504 |
vfprintf(stderr, fmt, ap); |
| 505 |
fprintf(stderr, "\n");
|
| 506 |
for(env = first_cpu; env != NULL; env = env->next_cpu) { |
| 507 |
fprintf(stderr, "CPU #%d:\n", env->cpu_index);
|
| 508 |
#ifdef TARGET_I386
|
| 509 |
cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU); |
| 510 |
#else
|
| 511 |
cpu_dump_state(env, stderr, fprintf, 0);
|
| 512 |
#endif
|
| 513 |
} |
| 514 |
va_end(ap); |
| 515 |
abort(); |
| 516 |
} |
| 517 |
|
| 518 |
/***********************************************************/
|
| 519 |
/* keyboard/mouse */
|
| 520 |
|
| 521 |
static QEMUPutKBDEvent *qemu_put_kbd_event;
|
| 522 |
static void *qemu_put_kbd_event_opaque; |
| 523 |
static QEMUPutMouseEntry *qemu_put_mouse_event_head;
|
| 524 |
static QEMUPutMouseEntry *qemu_put_mouse_event_current;
|
| 525 |
|
| 526 |
void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque) |
| 527 |
{
|
| 528 |
qemu_put_kbd_event_opaque = opaque; |
| 529 |
qemu_put_kbd_event = func; |
| 530 |
} |
| 531 |
|
| 532 |
QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func, |
| 533 |
void *opaque, int absolute, |
| 534 |
const char *name) |
| 535 |
{
|
| 536 |
QEMUPutMouseEntry *s, *cursor; |
| 537 |
|
| 538 |
s = qemu_mallocz(sizeof(QEMUPutMouseEntry));
|
| 539 |
if (!s)
|
| 540 |
return NULL; |
| 541 |
|
| 542 |
s->qemu_put_mouse_event = func; |
| 543 |
s->qemu_put_mouse_event_opaque = opaque; |
| 544 |
s->qemu_put_mouse_event_absolute = absolute; |
| 545 |
s->qemu_put_mouse_event_name = qemu_strdup(name); |
| 546 |
s->next = NULL;
|
| 547 |
|
| 548 |
if (!qemu_put_mouse_event_head) {
|
| 549 |
qemu_put_mouse_event_head = qemu_put_mouse_event_current = s; |
| 550 |
return s;
|
| 551 |
} |
| 552 |
|
| 553 |
cursor = qemu_put_mouse_event_head; |
| 554 |
while (cursor->next != NULL) |
| 555 |
cursor = cursor->next; |
| 556 |
|
| 557 |
cursor->next = s; |
| 558 |
qemu_put_mouse_event_current = s; |
| 559 |
|
| 560 |
return s;
|
| 561 |
} |
| 562 |
|
| 563 |
void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
|
| 564 |
{
|
| 565 |
QEMUPutMouseEntry *prev = NULL, *cursor;
|
| 566 |
|
| 567 |
if (!qemu_put_mouse_event_head || entry == NULL) |
| 568 |
return;
|
| 569 |
|
| 570 |
cursor = qemu_put_mouse_event_head; |
| 571 |
while (cursor != NULL && cursor != entry) { |
| 572 |
prev = cursor; |
| 573 |
cursor = cursor->next; |
| 574 |
} |
| 575 |
|
| 576 |
if (cursor == NULL) // does not exist or list empty |
| 577 |
return;
|
| 578 |
else if (prev == NULL) { // entry is head |
| 579 |
qemu_put_mouse_event_head = cursor->next; |
| 580 |
if (qemu_put_mouse_event_current == entry)
|
| 581 |
qemu_put_mouse_event_current = cursor->next; |
| 582 |
qemu_free(entry->qemu_put_mouse_event_name); |
| 583 |
qemu_free(entry); |
| 584 |
return;
|
| 585 |
} |
| 586 |
|
| 587 |
prev->next = entry->next; |
| 588 |
|
| 589 |
if (qemu_put_mouse_event_current == entry)
|
| 590 |
qemu_put_mouse_event_current = prev; |
| 591 |
|
| 592 |
qemu_free(entry->qemu_put_mouse_event_name); |
| 593 |
qemu_free(entry); |
| 594 |
} |
| 595 |
|
| 596 |
void kbd_put_keycode(int keycode) |
| 597 |
{
|
| 598 |
if (qemu_put_kbd_event) {
|
| 599 |
qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode); |
| 600 |
} |
| 601 |
} |
| 602 |
|
| 603 |
void kbd_mouse_event(int dx, int dy, int dz, int buttons_state) |
| 604 |
{
|
| 605 |
QEMUPutMouseEvent *mouse_event; |
| 606 |
void *mouse_event_opaque;
|
| 607 |
int width;
|
| 608 |
|
| 609 |
if (!qemu_put_mouse_event_current) {
|
| 610 |
return;
|
| 611 |
} |
| 612 |
|
| 613 |
mouse_event = |
| 614 |
qemu_put_mouse_event_current->qemu_put_mouse_event; |
| 615 |
mouse_event_opaque = |
| 616 |
qemu_put_mouse_event_current->qemu_put_mouse_event_opaque; |
| 617 |
|
| 618 |
if (mouse_event) {
|
| 619 |
if (graphic_rotate) {
|
| 620 |
if (qemu_put_mouse_event_current->qemu_put_mouse_event_absolute)
|
| 621 |
width = 0x7fff;
|
| 622 |
else
|
| 623 |
width = graphic_width - 1;
|
| 624 |
mouse_event(mouse_event_opaque, |
| 625 |
width - dy, dx, dz, buttons_state); |
| 626 |
} else
|
| 627 |
mouse_event(mouse_event_opaque, |
| 628 |
dx, dy, dz, buttons_state); |
| 629 |
} |
| 630 |
} |
| 631 |
|
| 632 |
int kbd_mouse_is_absolute(void) |
| 633 |
{
|
| 634 |
if (!qemu_put_mouse_event_current)
|
| 635 |
return 0; |
| 636 |
|
| 637 |
return qemu_put_mouse_event_current->qemu_put_mouse_event_absolute;
|
| 638 |
} |
| 639 |
|
| 640 |
void do_info_mice(void) |
| 641 |
{
|
| 642 |
QEMUPutMouseEntry *cursor; |
| 643 |
int index = 0; |
| 644 |
|
| 645 |
if (!qemu_put_mouse_event_head) {
|
| 646 |
term_printf("No mouse devices connected\n");
|
| 647 |
return;
|
| 648 |
} |
| 649 |
|
| 650 |
term_printf("Mouse devices available:\n");
|
| 651 |
cursor = qemu_put_mouse_event_head; |
| 652 |
while (cursor != NULL) { |
| 653 |
term_printf("%c Mouse #%d: %s\n",
|
| 654 |
(cursor == qemu_put_mouse_event_current ? '*' : ' '), |
| 655 |
index, cursor->qemu_put_mouse_event_name); |
| 656 |
index++; |
| 657 |
cursor = cursor->next; |
| 658 |
} |
| 659 |
} |
| 660 |
|
| 661 |
void do_mouse_set(int index) |
| 662 |
{
|
| 663 |
QEMUPutMouseEntry *cursor; |
| 664 |
int i = 0; |
| 665 |
|
| 666 |
if (!qemu_put_mouse_event_head) {
|
| 667 |
term_printf("No mouse devices connected\n");
|
| 668 |
return;
|
| 669 |
} |
| 670 |
|
| 671 |
cursor = qemu_put_mouse_event_head; |
| 672 |
while (cursor != NULL && index != i) { |
| 673 |
i++; |
| 674 |
cursor = cursor->next; |
| 675 |
} |
| 676 |
|
| 677 |
if (cursor != NULL) |
| 678 |
qemu_put_mouse_event_current = cursor; |
| 679 |
else
|
| 680 |
term_printf("Mouse at given index not found\n");
|
| 681 |
} |
| 682 |
|
| 683 |
/* compute with 96 bit intermediate result: (a*b)/c */
|
| 684 |
uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c) |
| 685 |
{
|
| 686 |
union {
|
| 687 |
uint64_t ll; |
| 688 |
struct {
|
| 689 |
#ifdef WORDS_BIGENDIAN
|
| 690 |
uint32_t high, low; |
| 691 |
#else
|
| 692 |
uint32_t low, high; |
| 693 |
#endif
|
| 694 |
} l; |
| 695 |
} u, res; |
| 696 |
uint64_t rl, rh; |
| 697 |
|
| 698 |
u.ll = a; |
| 699 |
rl = (uint64_t)u.l.low * (uint64_t)b; |
| 700 |
rh = (uint64_t)u.l.high * (uint64_t)b; |
| 701 |
rh += (rl >> 32);
|
| 702 |
res.l.high = rh / c; |
| 703 |
res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c; |
| 704 |
return res.ll;
|
| 705 |
} |
| 706 |
|
| 707 |
/***********************************************************/
|
| 708 |
/* real time host monotonic timer */
|
| 709 |
|
| 710 |
#define QEMU_TIMER_BASE 1000000000LL |
| 711 |
|
| 712 |
#ifdef WIN32
|
| 713 |
|
| 714 |
static int64_t clock_freq;
|
| 715 |
|
| 716 |
static void init_get_clock(void) |
| 717 |
{
|
| 718 |
LARGE_INTEGER freq; |
| 719 |
int ret;
|
| 720 |
ret = QueryPerformanceFrequency(&freq); |
| 721 |
if (ret == 0) { |
| 722 |
fprintf(stderr, "Could not calibrate ticks\n");
|
| 723 |
exit(1);
|
| 724 |
} |
| 725 |
clock_freq = freq.QuadPart; |
| 726 |
} |
| 727 |
|
| 728 |
static int64_t get_clock(void) |
| 729 |
{
|
| 730 |
LARGE_INTEGER ti; |
| 731 |
QueryPerformanceCounter(&ti); |
| 732 |
return muldiv64(ti.QuadPart, QEMU_TIMER_BASE, clock_freq);
|
| 733 |
} |
| 734 |
|
| 735 |
#else
|
| 736 |
|
| 737 |
static int use_rt_clock; |
| 738 |
|
| 739 |
static void init_get_clock(void) |
| 740 |
{
|
| 741 |
use_rt_clock = 0;
|
| 742 |
#if defined(__linux__)
|
| 743 |
{
|
| 744 |
struct timespec ts;
|
| 745 |
if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) { |
| 746 |
use_rt_clock = 1;
|
| 747 |
} |
| 748 |
} |
| 749 |
#endif
|
| 750 |
} |
| 751 |
|
| 752 |
static int64_t get_clock(void) |
| 753 |
{
|
| 754 |
#if defined(__linux__)
|
| 755 |
if (use_rt_clock) {
|
| 756 |
struct timespec ts;
|
| 757 |
clock_gettime(CLOCK_MONOTONIC, &ts); |
| 758 |
return ts.tv_sec * 1000000000LL + ts.tv_nsec; |
| 759 |
} else
|
| 760 |
#endif
|
| 761 |
{
|
| 762 |
/* XXX: using gettimeofday leads to problems if the date
|
| 763 |
changes, so it should be avoided. */
|
| 764 |
struct timeval tv;
|
| 765 |
gettimeofday(&tv, NULL);
|
| 766 |
return tv.tv_sec * 1000000000LL + (tv.tv_usec * 1000); |
| 767 |
} |
| 768 |
} |
| 769 |
#endif
|
| 770 |
|
| 771 |
/* Return the virtual CPU time, based on the instruction counter. */
|
| 772 |
static int64_t cpu_get_icount(void) |
| 773 |
{
|
| 774 |
int64_t icount; |
| 775 |
CPUState *env = cpu_single_env;; |
| 776 |
icount = qemu_icount; |
| 777 |
if (env) {
|
| 778 |
if (!can_do_io(env))
|
| 779 |
fprintf(stderr, "Bad clock read\n");
|
| 780 |
icount -= (env->icount_decr.u16.low + env->icount_extra); |
| 781 |
} |
| 782 |
return qemu_icount_bias + (icount << icount_time_shift);
|
| 783 |
} |
| 784 |
|
| 785 |
/***********************************************************/
|
| 786 |
/* guest cycle counter */
|
| 787 |
|
| 788 |
static int64_t cpu_ticks_prev;
|
| 789 |
static int64_t cpu_ticks_offset;
|
| 790 |
static int64_t cpu_clock_offset;
|
| 791 |
static int cpu_ticks_enabled; |
| 792 |
|
| 793 |
/* return the host CPU cycle counter and handle stop/restart */
|
| 794 |
int64_t cpu_get_ticks(void)
|
| 795 |
{
|
| 796 |
if (use_icount) {
|
| 797 |
return cpu_get_icount();
|
| 798 |
} |
| 799 |
if (!cpu_ticks_enabled) {
|
| 800 |
return cpu_ticks_offset;
|
| 801 |
} else {
|
| 802 |
int64_t ticks; |
| 803 |
ticks = cpu_get_real_ticks(); |
| 804 |
if (cpu_ticks_prev > ticks) {
|
| 805 |
/* Note: non increasing ticks may happen if the host uses
|
| 806 |
software suspend */
|
| 807 |
cpu_ticks_offset += cpu_ticks_prev - ticks; |
| 808 |
} |
| 809 |
cpu_ticks_prev = ticks; |
| 810 |
return ticks + cpu_ticks_offset;
|
| 811 |
} |
| 812 |
} |
| 813 |
|
| 814 |
/* return the host CPU monotonic timer and handle stop/restart */
|
| 815 |
static int64_t cpu_get_clock(void) |
| 816 |
{
|
| 817 |
int64_t ti; |
| 818 |
if (!cpu_ticks_enabled) {
|
| 819 |
return cpu_clock_offset;
|
| 820 |
} else {
|
| 821 |
ti = get_clock(); |
| 822 |
return ti + cpu_clock_offset;
|
| 823 |
} |
| 824 |
} |
| 825 |
|
| 826 |
/* enable cpu_get_ticks() */
|
| 827 |
void cpu_enable_ticks(void) |
| 828 |
{
|
| 829 |
if (!cpu_ticks_enabled) {
|
| 830 |
cpu_ticks_offset -= cpu_get_real_ticks(); |
| 831 |
cpu_clock_offset -= get_clock(); |
| 832 |
cpu_ticks_enabled = 1;
|
| 833 |
} |
| 834 |
} |
| 835 |
|
| 836 |
/* disable cpu_get_ticks() : the clock is stopped. You must not call
|
| 837 |
cpu_get_ticks() after that. */
|
| 838 |
void cpu_disable_ticks(void) |
| 839 |
{
|
| 840 |
if (cpu_ticks_enabled) {
|
| 841 |
cpu_ticks_offset = cpu_get_ticks(); |
| 842 |
cpu_clock_offset = cpu_get_clock(); |
| 843 |
cpu_ticks_enabled = 0;
|
| 844 |
} |
| 845 |
} |
| 846 |
|
| 847 |
/***********************************************************/
|
| 848 |
/* timers */
|
| 849 |
|
| 850 |
#define QEMU_TIMER_REALTIME 0 |
| 851 |
#define QEMU_TIMER_VIRTUAL 1 |
| 852 |
|
| 853 |
struct QEMUClock {
|
| 854 |
int type;
|
| 855 |
/* XXX: add frequency */
|
| 856 |
}; |
| 857 |
|
| 858 |
struct QEMUTimer {
|
| 859 |
QEMUClock *clock; |
| 860 |
int64_t expire_time; |
| 861 |
QEMUTimerCB *cb; |
| 862 |
void *opaque;
|
| 863 |
struct QEMUTimer *next;
|
| 864 |
}; |
| 865 |
|
| 866 |
struct qemu_alarm_timer {
|
| 867 |
char const *name; |
| 868 |
unsigned int flags; |
| 869 |
|
| 870 |
int (*start)(struct qemu_alarm_timer *t); |
| 871 |
void (*stop)(struct qemu_alarm_timer *t); |
| 872 |
void (*rearm)(struct qemu_alarm_timer *t); |
| 873 |
void *priv;
|
| 874 |
}; |
| 875 |
|
| 876 |
#define ALARM_FLAG_DYNTICKS 0x1 |
| 877 |
#define ALARM_FLAG_EXPIRED 0x2 |
| 878 |
|
| 879 |
static inline int alarm_has_dynticks(struct qemu_alarm_timer *t) |
| 880 |
{
|
| 881 |
return t->flags & ALARM_FLAG_DYNTICKS;
|
| 882 |
} |
| 883 |
|
| 884 |
static void qemu_rearm_alarm_timer(struct qemu_alarm_timer *t) |
| 885 |
{
|
| 886 |
if (!alarm_has_dynticks(t))
|
| 887 |
return;
|
| 888 |
|
| 889 |
t->rearm(t); |
| 890 |
} |
| 891 |
|
| 892 |
/* TODO: MIN_TIMER_REARM_US should be optimized */
|
| 893 |
#define MIN_TIMER_REARM_US 250 |
| 894 |
|
| 895 |
static struct qemu_alarm_timer *alarm_timer; |
| 896 |
|
| 897 |
#ifdef _WIN32
|
| 898 |
|
| 899 |
struct qemu_alarm_win32 {
|
| 900 |
MMRESULT timerId; |
| 901 |
HANDLE host_alarm; |
| 902 |
unsigned int period; |
| 903 |
} alarm_win32_data = {0, NULL, -1};
|
| 904 |
|
| 905 |
static int win32_start_timer(struct qemu_alarm_timer *t); |
| 906 |
static void win32_stop_timer(struct qemu_alarm_timer *t); |
| 907 |
static void win32_rearm_timer(struct qemu_alarm_timer *t); |
| 908 |
|
| 909 |
#else
|
| 910 |
|
| 911 |
static int unix_start_timer(struct qemu_alarm_timer *t); |
| 912 |
static void unix_stop_timer(struct qemu_alarm_timer *t); |
| 913 |
|
| 914 |
#ifdef __linux__
|
| 915 |
|
| 916 |
static int dynticks_start_timer(struct qemu_alarm_timer *t); |
| 917 |
static void dynticks_stop_timer(struct qemu_alarm_timer *t); |
| 918 |
static void dynticks_rearm_timer(struct qemu_alarm_timer *t); |
| 919 |
|
| 920 |
static int hpet_start_timer(struct qemu_alarm_timer *t); |
| 921 |
static void hpet_stop_timer(struct qemu_alarm_timer *t); |
| 922 |
|
| 923 |
static int rtc_start_timer(struct qemu_alarm_timer *t); |
| 924 |
static void rtc_stop_timer(struct qemu_alarm_timer *t); |
| 925 |
|
| 926 |
#endif /* __linux__ */ |
| 927 |
|
| 928 |
#endif /* _WIN32 */ |
| 929 |
|
| 930 |
/* Correlation between real and virtual time is always going to be
|
| 931 |
fairly approximate, so ignore small variation.
|
| 932 |
When the guest is idle real and virtual time will be aligned in
|
| 933 |
the IO wait loop. */
|
| 934 |
#define ICOUNT_WOBBLE (QEMU_TIMER_BASE / 10) |
| 935 |
|
| 936 |
static void icount_adjust(void) |
| 937 |
{
|
| 938 |
int64_t cur_time; |
| 939 |
int64_t cur_icount; |
| 940 |
int64_t delta; |
| 941 |
static int64_t last_delta;
|
| 942 |
/* If the VM is not running, then do nothing. */
|
| 943 |
if (!vm_running)
|
| 944 |
return;
|
| 945 |
|
| 946 |
cur_time = cpu_get_clock(); |
| 947 |
cur_icount = qemu_get_clock(vm_clock); |
| 948 |
delta = cur_icount - cur_time; |
| 949 |
/* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
|
| 950 |
if (delta > 0 |
| 951 |
&& last_delta + ICOUNT_WOBBLE < delta * 2
|
| 952 |
&& icount_time_shift > 0) {
|
| 953 |
/* The guest is getting too far ahead. Slow time down. */
|
| 954 |
icount_time_shift--; |
| 955 |
} |
| 956 |
if (delta < 0 |
| 957 |
&& last_delta - ICOUNT_WOBBLE > delta * 2
|
| 958 |
&& icount_time_shift < MAX_ICOUNT_SHIFT) {
|
| 959 |
/* The guest is getting too far behind. Speed time up. */
|
| 960 |
icount_time_shift++; |
| 961 |
} |
| 962 |
last_delta = delta; |
| 963 |
qemu_icount_bias = cur_icount - (qemu_icount << icount_time_shift); |
| 964 |
} |
| 965 |
|
| 966 |
static void icount_adjust_rt(void * opaque) |
| 967 |
{
|
| 968 |
qemu_mod_timer(icount_rt_timer, |
| 969 |
qemu_get_clock(rt_clock) + 1000);
|
| 970 |
icount_adjust(); |
| 971 |
} |
| 972 |
|
| 973 |
static void icount_adjust_vm(void * opaque) |
| 974 |
{
|
| 975 |
qemu_mod_timer(icount_vm_timer, |
| 976 |
qemu_get_clock(vm_clock) + QEMU_TIMER_BASE / 10);
|
| 977 |
icount_adjust(); |
| 978 |
} |
| 979 |
|
| 980 |
static void init_icount_adjust(void) |
| 981 |
{
|
| 982 |
/* Have both realtime and virtual time triggers for speed adjustment.
|
| 983 |
The realtime trigger catches emulated time passing too slowly,
|
| 984 |
the virtual time trigger catches emulated time passing too fast.
|
| 985 |
Realtime triggers occur even when idle, so use them less frequently
|
| 986 |
than VM triggers. */
|
| 987 |
icount_rt_timer = qemu_new_timer(rt_clock, icount_adjust_rt, NULL);
|
| 988 |
qemu_mod_timer(icount_rt_timer, |
| 989 |
qemu_get_clock(rt_clock) + 1000);
|
| 990 |
icount_vm_timer = qemu_new_timer(vm_clock, icount_adjust_vm, NULL);
|
| 991 |
qemu_mod_timer(icount_vm_timer, |
| 992 |
qemu_get_clock(vm_clock) + QEMU_TIMER_BASE / 10);
|
| 993 |
} |
| 994 |
|
| 995 |
static struct qemu_alarm_timer alarm_timers[] = { |
| 996 |
#ifndef _WIN32
|
| 997 |
#ifdef __linux__
|
| 998 |
{"dynticks", ALARM_FLAG_DYNTICKS, dynticks_start_timer,
|
| 999 |
dynticks_stop_timer, dynticks_rearm_timer, NULL},
|
| 1000 |
/* HPET - if available - is preferred */
|
| 1001 |
{"hpet", 0, hpet_start_timer, hpet_stop_timer, NULL, NULL},
|
| 1002 |
/* ...otherwise try RTC */
|
| 1003 |
{"rtc", 0, rtc_start_timer, rtc_stop_timer, NULL, NULL},
|
| 1004 |
#endif
|
| 1005 |
{"unix", 0, unix_start_timer, unix_stop_timer, NULL, NULL},
|
| 1006 |
#else
|
| 1007 |
{"dynticks", ALARM_FLAG_DYNTICKS, win32_start_timer,
|
| 1008 |
win32_stop_timer, win32_rearm_timer, &alarm_win32_data}, |
| 1009 |
{"win32", 0, win32_start_timer,
|
| 1010 |
win32_stop_timer, NULL, &alarm_win32_data},
|
| 1011 |
#endif
|
| 1012 |
{NULL, }
|
| 1013 |
}; |
| 1014 |
|
| 1015 |
static void show_available_alarms(void) |
| 1016 |
{
|
| 1017 |
int i;
|
| 1018 |
|
| 1019 |
printf("Available alarm timers, in order of precedence:\n");
|
| 1020 |
for (i = 0; alarm_timers[i].name; i++) |
| 1021 |
printf("%s\n", alarm_timers[i].name);
|
| 1022 |
} |
| 1023 |
|
| 1024 |
static void configure_alarms(char const *opt) |
| 1025 |
{
|
| 1026 |
int i;
|
| 1027 |
int cur = 0; |
| 1028 |
int count = (sizeof(alarm_timers) / sizeof(*alarm_timers)) - 1; |
| 1029 |
char *arg;
|
| 1030 |
char *name;
|
| 1031 |
struct qemu_alarm_timer tmp;
|
| 1032 |
|
| 1033 |
if (!strcmp(opt, "?")) { |
| 1034 |
show_available_alarms(); |
| 1035 |
exit(0);
|
| 1036 |
} |
| 1037 |
|
| 1038 |
arg = strdup(opt); |
| 1039 |
|
| 1040 |
/* Reorder the array */
|
| 1041 |
name = strtok(arg, ",");
|
| 1042 |
while (name) {
|
| 1043 |
for (i = 0; i < count && alarm_timers[i].name; i++) { |
| 1044 |
if (!strcmp(alarm_timers[i].name, name))
|
| 1045 |
break;
|
| 1046 |
} |
| 1047 |
|
| 1048 |
if (i == count) {
|
| 1049 |
fprintf(stderr, "Unknown clock %s\n", name);
|
| 1050 |
goto next;
|
| 1051 |
} |
| 1052 |
|
| 1053 |
if (i < cur)
|
| 1054 |
/* Ignore */
|
| 1055 |
goto next;
|
| 1056 |
|
| 1057 |
/* Swap */
|
| 1058 |
tmp = alarm_timers[i]; |
| 1059 |
alarm_timers[i] = alarm_timers[cur]; |
| 1060 |
alarm_timers[cur] = tmp; |
| 1061 |
|
| 1062 |
cur++; |
| 1063 |
next:
|
| 1064 |
name = strtok(NULL, ","); |
| 1065 |
} |
| 1066 |
|
| 1067 |
free(arg); |
| 1068 |
|
| 1069 |
if (cur) {
|
| 1070 |
/* Disable remaining timers */
|
| 1071 |
for (i = cur; i < count; i++)
|
| 1072 |
alarm_timers[i].name = NULL;
|
| 1073 |
} else {
|
| 1074 |
show_available_alarms(); |
| 1075 |
exit(1);
|
| 1076 |
} |
| 1077 |
} |
| 1078 |
|
| 1079 |
QEMUClock *rt_clock; |
| 1080 |
QEMUClock *vm_clock; |
| 1081 |
|
| 1082 |
static QEMUTimer *active_timers[2]; |
| 1083 |
|
| 1084 |
static QEMUClock *qemu_new_clock(int type) |
| 1085 |
{
|
| 1086 |
QEMUClock *clock; |
| 1087 |
clock = qemu_mallocz(sizeof(QEMUClock));
|
| 1088 |
if (!clock)
|
| 1089 |
return NULL; |
| 1090 |
clock->type = type; |
| 1091 |
return clock;
|
| 1092 |
} |
| 1093 |
|
| 1094 |
QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
|
| 1095 |
{
|
| 1096 |
QEMUTimer *ts; |
| 1097 |
|
| 1098 |
ts = qemu_mallocz(sizeof(QEMUTimer));
|
| 1099 |
ts->clock = clock; |
| 1100 |
ts->cb = cb; |
| 1101 |
ts->opaque = opaque; |
| 1102 |
return ts;
|
| 1103 |
} |
| 1104 |
|
| 1105 |
void qemu_free_timer(QEMUTimer *ts)
|
| 1106 |
{
|
| 1107 |
qemu_free(ts); |
| 1108 |
} |
| 1109 |
|
| 1110 |
/* stop a timer, but do not dealloc it */
|
| 1111 |
void qemu_del_timer(QEMUTimer *ts)
|
| 1112 |
{
|
| 1113 |
QEMUTimer **pt, *t; |
| 1114 |
|
| 1115 |
/* NOTE: this code must be signal safe because
|
| 1116 |
qemu_timer_expired() can be called from a signal. */
|
| 1117 |
pt = &active_timers[ts->clock->type]; |
| 1118 |
for(;;) {
|
| 1119 |
t = *pt; |
| 1120 |
if (!t)
|
| 1121 |
break;
|
| 1122 |
if (t == ts) {
|
| 1123 |
*pt = t->next; |
| 1124 |
break;
|
| 1125 |
} |
| 1126 |
pt = &t->next; |
| 1127 |
} |
| 1128 |
} |
| 1129 |
|
| 1130 |
/* modify the current timer so that it will be fired when current_time
|
| 1131 |
>= expire_time. The corresponding callback will be called. */
|
| 1132 |
void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
|
| 1133 |
{
|
| 1134 |
QEMUTimer **pt, *t; |
| 1135 |
|
| 1136 |
qemu_del_timer(ts); |
| 1137 |
|
| 1138 |
/* add the timer in the sorted list */
|
| 1139 |
/* NOTE: this code must be signal safe because
|
| 1140 |
qemu_timer_expired() can be called from a signal. */
|
| 1141 |
pt = &active_timers[ts->clock->type]; |
| 1142 |
for(;;) {
|
| 1143 |
t = *pt; |
| 1144 |
if (!t)
|
| 1145 |
break;
|
| 1146 |
if (t->expire_time > expire_time)
|
| 1147 |
break;
|
| 1148 |
pt = &t->next; |
| 1149 |
} |
| 1150 |
ts->expire_time = expire_time; |
| 1151 |
ts->next = *pt; |
| 1152 |
*pt = ts; |
| 1153 |
|
| 1154 |
/* Rearm if necessary */
|
| 1155 |
if (pt == &active_timers[ts->clock->type]) {
|
| 1156 |
if ((alarm_timer->flags & ALARM_FLAG_EXPIRED) == 0) { |
| 1157 |
qemu_rearm_alarm_timer(alarm_timer); |
| 1158 |
} |
| 1159 |
/* Interrupt execution to force deadline recalculation. */
|
| 1160 |
if (use_icount && cpu_single_env) {
|
| 1161 |
cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT); |
| 1162 |
} |
| 1163 |
} |
| 1164 |
} |
| 1165 |
|
| 1166 |
int qemu_timer_pending(QEMUTimer *ts)
|
| 1167 |
{
|
| 1168 |
QEMUTimer *t; |
| 1169 |
for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) { |
| 1170 |
if (t == ts)
|
| 1171 |
return 1; |
| 1172 |
} |
| 1173 |
return 0; |
| 1174 |
} |
| 1175 |
|
| 1176 |
static inline int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time) |
| 1177 |
{
|
| 1178 |
if (!timer_head)
|
| 1179 |
return 0; |
| 1180 |
return (timer_head->expire_time <= current_time);
|
| 1181 |
} |
| 1182 |
|
| 1183 |
static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time) |
| 1184 |
{
|
| 1185 |
QEMUTimer *ts; |
| 1186 |
|
| 1187 |
for(;;) {
|
| 1188 |
ts = *ptimer_head; |
| 1189 |
if (!ts || ts->expire_time > current_time)
|
| 1190 |
break;
|
| 1191 |
/* remove timer from the list before calling the callback */
|
| 1192 |
*ptimer_head = ts->next; |
| 1193 |
ts->next = NULL;
|
| 1194 |
|
| 1195 |
/* run the callback (the timer list can be modified) */
|
| 1196 |
ts->cb(ts->opaque); |
| 1197 |
} |
| 1198 |
} |
| 1199 |
|
| 1200 |
int64_t qemu_get_clock(QEMUClock *clock) |
| 1201 |
{
|
| 1202 |
switch(clock->type) {
|
| 1203 |
case QEMU_TIMER_REALTIME:
|
| 1204 |
return get_clock() / 1000000; |
| 1205 |
default:
|
| 1206 |
case QEMU_TIMER_VIRTUAL:
|
| 1207 |
if (use_icount) {
|
| 1208 |
return cpu_get_icount();
|
| 1209 |
} else {
|
| 1210 |
return cpu_get_clock();
|
| 1211 |
} |
| 1212 |
} |
| 1213 |
} |
| 1214 |
|
| 1215 |
static void init_timers(void) |
| 1216 |
{
|
| 1217 |
init_get_clock(); |
| 1218 |
ticks_per_sec = QEMU_TIMER_BASE; |
| 1219 |
rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME); |
| 1220 |
vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL); |
| 1221 |
} |
| 1222 |
|
| 1223 |
/* save a timer */
|
| 1224 |
void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
|
| 1225 |
{
|
| 1226 |
uint64_t expire_time; |
| 1227 |
|
| 1228 |
if (qemu_timer_pending(ts)) {
|
| 1229 |
expire_time = ts->expire_time; |
| 1230 |
} else {
|
| 1231 |
expire_time = -1;
|
| 1232 |
} |
| 1233 |
qemu_put_be64(f, expire_time); |
| 1234 |
} |
| 1235 |
|
| 1236 |
void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
|
| 1237 |
{
|
| 1238 |
uint64_t expire_time; |
| 1239 |
|
| 1240 |
expire_time = qemu_get_be64(f); |
| 1241 |
if (expire_time != -1) { |
| 1242 |
qemu_mod_timer(ts, expire_time); |
| 1243 |
} else {
|
| 1244 |
qemu_del_timer(ts); |
| 1245 |
} |
| 1246 |
} |
| 1247 |
|
| 1248 |
static void timer_save(QEMUFile *f, void *opaque) |
| 1249 |
{
|
| 1250 |
if (cpu_ticks_enabled) {
|
| 1251 |
hw_error("cannot save state if virtual timers are running");
|
| 1252 |
} |
| 1253 |
qemu_put_be64(f, cpu_ticks_offset); |
| 1254 |
qemu_put_be64(f, ticks_per_sec); |
| 1255 |
qemu_put_be64(f, cpu_clock_offset); |
| 1256 |
} |
| 1257 |
|
| 1258 |
static int timer_load(QEMUFile *f, void *opaque, int version_id) |
| 1259 |
{
|
| 1260 |
if (version_id != 1 && version_id != 2) |
| 1261 |
return -EINVAL;
|
| 1262 |
if (cpu_ticks_enabled) {
|
| 1263 |
return -EINVAL;
|
| 1264 |
} |
| 1265 |
cpu_ticks_offset=qemu_get_be64(f); |
| 1266 |
ticks_per_sec=qemu_get_be64(f); |
| 1267 |
if (version_id == 2) { |
| 1268 |
cpu_clock_offset=qemu_get_be64(f); |
| 1269 |
} |
| 1270 |
return 0; |
| 1271 |
} |
| 1272 |
|
| 1273 |
#ifdef _WIN32
|
| 1274 |
void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
|
| 1275 |
DWORD_PTR dwUser, DWORD_PTR dw1, DWORD_PTR dw2) |
| 1276 |
#else
|
| 1277 |
static void host_alarm_handler(int host_signum) |
| 1278 |
#endif
|
| 1279 |
{
|
| 1280 |
#if 0
|
| 1281 |
#define DISP_FREQ 1000
|
| 1282 |
{
|
| 1283 |
static int64_t delta_min = INT64_MAX;
|
| 1284 |
static int64_t delta_max, delta_cum, last_clock, delta, ti;
|
| 1285 |
static int count;
|
| 1286 |
ti = qemu_get_clock(vm_clock);
|
| 1287 |
if (last_clock != 0) {
|
| 1288 |
delta = ti - last_clock;
|
| 1289 |
if (delta < delta_min)
|
| 1290 |
delta_min = delta;
|
| 1291 |
if (delta > delta_max)
|
| 1292 |
delta_max = delta;
|
| 1293 |
delta_cum += delta;
|
| 1294 |
if (++count == DISP_FREQ) {
|
| 1295 |
printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n",
|
| 1296 |
muldiv64(delta_min, 1000000, ticks_per_sec),
|
| 1297 |
muldiv64(delta_max, 1000000, ticks_per_sec),
|
| 1298 |
muldiv64(delta_cum, 1000000 / DISP_FREQ, ticks_per_sec),
|
| 1299 |
(double)ticks_per_sec / ((double)delta_cum / DISP_FREQ));
|
| 1300 |
count = 0;
|
| 1301 |
delta_min = INT64_MAX;
|
| 1302 |
delta_max = 0;
|
| 1303 |
delta_cum = 0;
|
| 1304 |
}
|
| 1305 |
}
|
| 1306 |
last_clock = ti;
|
| 1307 |
}
|
| 1308 |
#endif
|
| 1309 |
if (alarm_has_dynticks(alarm_timer) ||
|
| 1310 |
(!use_icount && |
| 1311 |
qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL], |
| 1312 |
qemu_get_clock(vm_clock))) || |
| 1313 |
qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME], |
| 1314 |
qemu_get_clock(rt_clock))) {
|
| 1315 |
#ifdef _WIN32
|
| 1316 |
struct qemu_alarm_win32 *data = ((struct qemu_alarm_timer*)dwUser)->priv; |
| 1317 |
SetEvent(data->host_alarm); |
| 1318 |
#endif
|
| 1319 |
CPUState *env = next_cpu; |
| 1320 |
|
| 1321 |
alarm_timer->flags |= ALARM_FLAG_EXPIRED; |
| 1322 |
|
| 1323 |
if (env) {
|
| 1324 |
/* stop the currently executing cpu because a timer occured */
|
| 1325 |
cpu_interrupt(env, CPU_INTERRUPT_EXIT); |
| 1326 |
#ifdef USE_KQEMU
|
| 1327 |
if (env->kqemu_enabled) {
|
| 1328 |
kqemu_cpu_interrupt(env); |
| 1329 |
} |
| 1330 |
#endif
|
| 1331 |
} |
| 1332 |
event_pending = 1;
|
| 1333 |
} |
| 1334 |
} |
| 1335 |
|
| 1336 |
static int64_t qemu_next_deadline(void) |
| 1337 |
{
|
| 1338 |
int64_t delta; |
| 1339 |
|
| 1340 |
if (active_timers[QEMU_TIMER_VIRTUAL]) {
|
| 1341 |
delta = active_timers[QEMU_TIMER_VIRTUAL]->expire_time - |
| 1342 |
qemu_get_clock(vm_clock); |
| 1343 |
} else {
|
| 1344 |
/* To avoid problems with overflow limit this to 2^32. */
|
| 1345 |
delta = INT32_MAX; |
| 1346 |
} |
| 1347 |
|
| 1348 |
if (delta < 0) |
| 1349 |
delta = 0;
|
| 1350 |
|
| 1351 |
return delta;
|
| 1352 |
} |
| 1353 |
|
| 1354 |
#if defined(__linux__) || defined(_WIN32)
|
| 1355 |
static uint64_t qemu_next_deadline_dyntick(void) |
| 1356 |
{
|
| 1357 |
int64_t delta; |
| 1358 |
int64_t rtdelta; |
| 1359 |
|
| 1360 |
if (use_icount)
|
| 1361 |
delta = INT32_MAX; |
| 1362 |
else
|
| 1363 |
delta = (qemu_next_deadline() + 999) / 1000; |
| 1364 |
|
| 1365 |
if (active_timers[QEMU_TIMER_REALTIME]) {
|
| 1366 |
rtdelta = (active_timers[QEMU_TIMER_REALTIME]->expire_time - |
| 1367 |
qemu_get_clock(rt_clock))*1000;
|
| 1368 |
if (rtdelta < delta)
|
| 1369 |
delta = rtdelta; |
| 1370 |
} |
| 1371 |
|
| 1372 |
if (delta < MIN_TIMER_REARM_US)
|
| 1373 |
delta = MIN_TIMER_REARM_US; |
| 1374 |
|
| 1375 |
return delta;
|
| 1376 |
} |
| 1377 |
#endif
|
| 1378 |
|
| 1379 |
#ifndef _WIN32
|
| 1380 |
|
| 1381 |
#if defined(__linux__)
|
| 1382 |
|
| 1383 |
#define RTC_FREQ 1024 |
| 1384 |
|
| 1385 |
static void enable_sigio_timer(int fd) |
| 1386 |
{
|
| 1387 |
struct sigaction act;
|
| 1388 |
|
| 1389 |
/* timer signal */
|
| 1390 |
sigfillset(&act.sa_mask); |
| 1391 |
act.sa_flags = 0;
|
| 1392 |
act.sa_handler = host_alarm_handler; |
| 1393 |
|
| 1394 |
sigaction(SIGIO, &act, NULL);
|
| 1395 |
fcntl(fd, F_SETFL, O_ASYNC); |
| 1396 |
fcntl(fd, F_SETOWN, getpid()); |
| 1397 |
} |
| 1398 |
|
| 1399 |
static int hpet_start_timer(struct qemu_alarm_timer *t) |
| 1400 |
{
|
| 1401 |
struct hpet_info info;
|
| 1402 |
int r, fd;
|
| 1403 |
|
| 1404 |
fd = open("/dev/hpet", O_RDONLY);
|
| 1405 |
if (fd < 0) |
| 1406 |
return -1; |
| 1407 |
|
| 1408 |
/* Set frequency */
|
| 1409 |
r = ioctl(fd, HPET_IRQFREQ, RTC_FREQ); |
| 1410 |
if (r < 0) { |
| 1411 |
fprintf(stderr, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
|
| 1412 |
"error, but for better emulation accuracy type:\n"
|
| 1413 |
"'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
|
| 1414 |
goto fail;
|
| 1415 |
} |
| 1416 |
|
| 1417 |
/* Check capabilities */
|
| 1418 |
r = ioctl(fd, HPET_INFO, &info); |
| 1419 |
if (r < 0) |
| 1420 |
goto fail;
|
| 1421 |
|
| 1422 |
/* Enable periodic mode */
|
| 1423 |
r = ioctl(fd, HPET_EPI, 0);
|
| 1424 |
if (info.hi_flags && (r < 0)) |
| 1425 |
goto fail;
|
| 1426 |
|
| 1427 |
/* Enable interrupt */
|
| 1428 |
r = ioctl(fd, HPET_IE_ON, 0);
|
| 1429 |
if (r < 0) |
| 1430 |
goto fail;
|
| 1431 |
|
| 1432 |
enable_sigio_timer(fd); |
| 1433 |
t->priv = (void *)(long)fd; |
| 1434 |
|
| 1435 |
return 0; |
| 1436 |
fail:
|
| 1437 |
close(fd); |
| 1438 |
return -1; |
| 1439 |
} |
| 1440 |
|
| 1441 |
static void hpet_stop_timer(struct qemu_alarm_timer *t) |
| 1442 |
{
|
| 1443 |
int fd = (long)t->priv; |
| 1444 |
|
| 1445 |
close(fd); |
| 1446 |
} |
| 1447 |
|
| 1448 |
static int rtc_start_timer(struct qemu_alarm_timer *t) |
| 1449 |
{
|
| 1450 |
int rtc_fd;
|
| 1451 |
unsigned long current_rtc_freq = 0; |
| 1452 |
|
| 1453 |
TFR(rtc_fd = open("/dev/rtc", O_RDONLY));
|
| 1454 |
if (rtc_fd < 0) |
| 1455 |
return -1; |
| 1456 |
ioctl(rtc_fd, RTC_IRQP_READ, ¤t_rtc_freq); |
| 1457 |
if (current_rtc_freq != RTC_FREQ &&
|
| 1458 |
ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
|
| 1459 |
fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
|
| 1460 |
"error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
|
| 1461 |
"type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
|
| 1462 |
goto fail;
|
| 1463 |
} |
| 1464 |
if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) { |
| 1465 |
fail:
|
| 1466 |
close(rtc_fd); |
| 1467 |
return -1; |
| 1468 |
} |
| 1469 |
|
| 1470 |
enable_sigio_timer(rtc_fd); |
| 1471 |
|
| 1472 |
t->priv = (void *)(long)rtc_fd; |
| 1473 |
|
| 1474 |
return 0; |
| 1475 |
} |
| 1476 |
|
| 1477 |
static void rtc_stop_timer(struct qemu_alarm_timer *t) |
| 1478 |
{
|
| 1479 |
int rtc_fd = (long)t->priv; |
| 1480 |
|
| 1481 |
close(rtc_fd); |
| 1482 |
} |
| 1483 |
|
| 1484 |
static int dynticks_start_timer(struct qemu_alarm_timer *t) |
| 1485 |
{
|
| 1486 |
struct sigevent ev;
|
| 1487 |
timer_t host_timer; |
| 1488 |
struct sigaction act;
|
| 1489 |
|
| 1490 |
sigfillset(&act.sa_mask); |
| 1491 |
act.sa_flags = 0;
|
| 1492 |
act.sa_handler = host_alarm_handler; |
| 1493 |
|
| 1494 |
sigaction(SIGALRM, &act, NULL);
|
| 1495 |
|
| 1496 |
ev.sigev_value.sival_int = 0;
|
| 1497 |
ev.sigev_notify = SIGEV_SIGNAL; |
| 1498 |
ev.sigev_signo = SIGALRM; |
| 1499 |
|
| 1500 |
if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) {
|
| 1501 |
perror("timer_create");
|
| 1502 |
|
| 1503 |
/* disable dynticks */
|
| 1504 |
fprintf(stderr, "Dynamic Ticks disabled\n");
|
| 1505 |
|
| 1506 |
return -1; |
| 1507 |
} |
| 1508 |
|
| 1509 |
t->priv = (void *)host_timer;
|
| 1510 |
|
| 1511 |
return 0; |
| 1512 |
} |
| 1513 |
|
| 1514 |
static void dynticks_stop_timer(struct qemu_alarm_timer *t) |
| 1515 |
{
|
| 1516 |
timer_t host_timer = (timer_t)t->priv; |
| 1517 |
|
| 1518 |
timer_delete(host_timer); |
| 1519 |
} |
| 1520 |
|
| 1521 |
static void dynticks_rearm_timer(struct qemu_alarm_timer *t) |
| 1522 |
{
|
| 1523 |
timer_t host_timer = (timer_t)t->priv; |
| 1524 |
struct itimerspec timeout;
|
| 1525 |
int64_t nearest_delta_us = INT64_MAX; |
| 1526 |
int64_t current_us; |
| 1527 |
|
| 1528 |
if (!active_timers[QEMU_TIMER_REALTIME] &&
|
| 1529 |
!active_timers[QEMU_TIMER_VIRTUAL]) |
| 1530 |
return;
|
| 1531 |
|
| 1532 |
nearest_delta_us = qemu_next_deadline_dyntick(); |
| 1533 |
|
| 1534 |
/* check whether a timer is already running */
|
| 1535 |
if (timer_gettime(host_timer, &timeout)) {
|
| 1536 |
perror("gettime");
|
| 1537 |
fprintf(stderr, "Internal timer error: aborting\n");
|
| 1538 |
exit(1);
|
| 1539 |
} |
| 1540 |
current_us = timeout.it_value.tv_sec * 1000000 + timeout.it_value.tv_nsec/1000; |
| 1541 |
if (current_us && current_us <= nearest_delta_us)
|
| 1542 |
return;
|
| 1543 |
|
| 1544 |
timeout.it_interval.tv_sec = 0;
|
| 1545 |
timeout.it_interval.tv_nsec = 0; /* 0 for one-shot timer */ |
| 1546 |
timeout.it_value.tv_sec = nearest_delta_us / 1000000;
|
| 1547 |
timeout.it_value.tv_nsec = (nearest_delta_us % 1000000) * 1000; |
| 1548 |
if (timer_settime(host_timer, 0 /* RELATIVE */, &timeout, NULL)) { |
| 1549 |
perror("settime");
|
| 1550 |
fprintf(stderr, "Internal timer error: aborting\n");
|
| 1551 |
exit(1);
|
| 1552 |
} |
| 1553 |
} |
| 1554 |
|
| 1555 |
#endif /* defined(__linux__) */ |
| 1556 |
|
| 1557 |
static int unix_start_timer(struct qemu_alarm_timer *t) |
| 1558 |
{
|
| 1559 |
struct sigaction act;
|
| 1560 |
struct itimerval itv;
|
| 1561 |
int err;
|
| 1562 |
|
| 1563 |
/* timer signal */
|
| 1564 |
sigfillset(&act.sa_mask); |
| 1565 |
act.sa_flags = 0;
|
| 1566 |
act.sa_handler = host_alarm_handler; |
| 1567 |
|
| 1568 |
sigaction(SIGALRM, &act, NULL);
|
| 1569 |
|
| 1570 |
itv.it_interval.tv_sec = 0;
|
| 1571 |
/* for i386 kernel 2.6 to get 1 ms */
|
| 1572 |
itv.it_interval.tv_usec = 999;
|
| 1573 |
itv.it_value.tv_sec = 0;
|
| 1574 |
itv.it_value.tv_usec = 10 * 1000; |
| 1575 |
|
| 1576 |
err = setitimer(ITIMER_REAL, &itv, NULL);
|
| 1577 |
if (err)
|
| 1578 |
return -1; |
| 1579 |
|
| 1580 |
return 0; |
| 1581 |
} |
| 1582 |
|
| 1583 |
static void unix_stop_timer(struct qemu_alarm_timer *t) |
| 1584 |
{
|
| 1585 |
struct itimerval itv;
|
| 1586 |
|
| 1587 |
memset(&itv, 0, sizeof(itv)); |
| 1588 |
setitimer(ITIMER_REAL, &itv, NULL);
|
| 1589 |
} |
| 1590 |
|
| 1591 |
#endif /* !defined(_WIN32) */ |
| 1592 |
|
| 1593 |
#ifdef _WIN32
|
| 1594 |
|
| 1595 |
static int win32_start_timer(struct qemu_alarm_timer *t) |
| 1596 |
{
|
| 1597 |
TIMECAPS tc; |
| 1598 |
struct qemu_alarm_win32 *data = t->priv;
|
| 1599 |
UINT flags; |
| 1600 |
|
| 1601 |
data->host_alarm = CreateEvent(NULL, FALSE, FALSE, NULL); |
| 1602 |
if (!data->host_alarm) {
|
| 1603 |
perror("Failed CreateEvent");
|
| 1604 |
return -1; |
| 1605 |
} |
| 1606 |
|
| 1607 |
memset(&tc, 0, sizeof(tc)); |
| 1608 |
timeGetDevCaps(&tc, sizeof(tc));
|
| 1609 |
|
| 1610 |
if (data->period < tc.wPeriodMin)
|
| 1611 |
data->period = tc.wPeriodMin; |
| 1612 |
|
| 1613 |
timeBeginPeriod(data->period); |
| 1614 |
|
| 1615 |
flags = TIME_CALLBACK_FUNCTION; |
| 1616 |
if (alarm_has_dynticks(t))
|
| 1617 |
flags |= TIME_ONESHOT; |
| 1618 |
else
|
| 1619 |
flags |= TIME_PERIODIC; |
| 1620 |
|
| 1621 |
data->timerId = timeSetEvent(1, // interval (ms) |
| 1622 |
data->period, // resolution
|
| 1623 |
host_alarm_handler, // function
|
| 1624 |
(DWORD)t, // parameter
|
| 1625 |
flags); |
| 1626 |
|
| 1627 |
if (!data->timerId) {
|
| 1628 |
perror("Failed to initialize win32 alarm timer");
|
| 1629 |
|
| 1630 |
timeEndPeriod(data->period); |
| 1631 |
CloseHandle(data->host_alarm); |
| 1632 |
return -1; |
| 1633 |
} |
| 1634 |
|
| 1635 |
qemu_add_wait_object(data->host_alarm, NULL, NULL); |
| 1636 |
|
| 1637 |
return 0; |
| 1638 |
} |
| 1639 |
|
| 1640 |
static void win32_stop_timer(struct qemu_alarm_timer *t) |
| 1641 |
{
|
| 1642 |
struct qemu_alarm_win32 *data = t->priv;
|
| 1643 |
|
| 1644 |
timeKillEvent(data->timerId); |
| 1645 |
timeEndPeriod(data->period); |
| 1646 |
|
| 1647 |
CloseHandle(data->host_alarm); |
| 1648 |
} |
| 1649 |
|
| 1650 |
static void win32_rearm_timer(struct qemu_alarm_timer *t) |
| 1651 |
{
|
| 1652 |
struct qemu_alarm_win32 *data = t->priv;
|
| 1653 |
uint64_t nearest_delta_us; |
| 1654 |
|
| 1655 |
if (!active_timers[QEMU_TIMER_REALTIME] &&
|
| 1656 |
!active_timers[QEMU_TIMER_VIRTUAL]) |
| 1657 |
return;
|
| 1658 |
|
| 1659 |
nearest_delta_us = qemu_next_deadline_dyntick(); |
| 1660 |
nearest_delta_us /= 1000;
|
| 1661 |
|
| 1662 |
timeKillEvent(data->timerId); |
| 1663 |
|
| 1664 |
data->timerId = timeSetEvent(1,
|
| 1665 |
data->period, |
| 1666 |
host_alarm_handler, |
| 1667 |
(DWORD)t, |
| 1668 |
TIME_ONESHOT | TIME_PERIODIC); |
| 1669 |
|
| 1670 |
if (!data->timerId) {
|
| 1671 |
perror("Failed to re-arm win32 alarm timer");
|
| 1672 |
|
| 1673 |
timeEndPeriod(data->period); |
| 1674 |
CloseHandle(data->host_alarm); |
| 1675 |
exit(1);
|
| 1676 |
} |
| 1677 |
} |
| 1678 |
|
| 1679 |
#endif /* _WIN32 */ |
| 1680 |
|
| 1681 |
static void init_timer_alarm(void) |
| 1682 |
{
|
| 1683 |
struct qemu_alarm_timer *t;
|
| 1684 |
int i, err = -1; |
| 1685 |
|
| 1686 |
for (i = 0; alarm_timers[i].name; i++) { |
| 1687 |
t = &alarm_timers[i]; |
| 1688 |
|
| 1689 |
err = t->start(t); |
| 1690 |
if (!err)
|
| 1691 |
break;
|
| 1692 |
} |
| 1693 |
|
| 1694 |
if (err) {
|
| 1695 |
fprintf(stderr, "Unable to find any suitable alarm timer.\n");
|
| 1696 |
fprintf(stderr, "Terminating\n");
|
| 1697 |
exit(1);
|
| 1698 |
} |
| 1699 |
|
| 1700 |
alarm_timer = t; |
| 1701 |
} |
| 1702 |
|
| 1703 |
static void quit_timers(void) |
| 1704 |
{
|
| 1705 |
alarm_timer->stop(alarm_timer); |
| 1706 |
alarm_timer = NULL;
|
| 1707 |
} |
| 1708 |
|
| 1709 |
/***********************************************************/
|
| 1710 |
/* host time/date access */
|
| 1711 |
void qemu_get_timedate(struct tm *tm, int offset) |
| 1712 |
{
|
| 1713 |
time_t ti; |
| 1714 |
struct tm *ret;
|
| 1715 |
|
| 1716 |
time(&ti); |
| 1717 |
ti += offset; |
| 1718 |
if (rtc_date_offset == -1) { |
| 1719 |
if (rtc_utc)
|
| 1720 |
ret = gmtime(&ti); |
| 1721 |
else
|
| 1722 |
ret = localtime(&ti); |
| 1723 |
} else {
|
| 1724 |
ti -= rtc_date_offset; |
| 1725 |
ret = gmtime(&ti); |
| 1726 |
} |
| 1727 |
|
| 1728 |
memcpy(tm, ret, sizeof(struct tm)); |
| 1729 |
} |
| 1730 |
|
| 1731 |
int qemu_timedate_diff(struct tm *tm) |
| 1732 |
{
|
| 1733 |
time_t seconds; |
| 1734 |
|
| 1735 |
if (rtc_date_offset == -1) |
| 1736 |
if (rtc_utc)
|
| 1737 |
seconds = mktimegm(tm); |
| 1738 |
else
|
| 1739 |
seconds = mktime(tm); |
| 1740 |
else
|
| 1741 |
seconds = mktimegm(tm) + rtc_date_offset; |
| 1742 |
|
| 1743 |
return seconds - time(NULL); |
| 1744 |
} |
| 1745 |
|
| 1746 |
/***********************************************************/
|
| 1747 |
/* character device */
|
| 1748 |
|
| 1749 |
static void qemu_chr_event(CharDriverState *s, int event) |
| 1750 |
{
|
| 1751 |
if (!s->chr_event)
|
| 1752 |
return;
|
| 1753 |
s->chr_event(s->handler_opaque, event); |
| 1754 |
} |
| 1755 |
|
| 1756 |
static void qemu_chr_reset_bh(void *opaque) |
| 1757 |
{
|
| 1758 |
CharDriverState *s = opaque; |
| 1759 |
qemu_chr_event(s, CHR_EVENT_RESET); |
| 1760 |
qemu_bh_delete(s->bh); |
| 1761 |
s->bh = NULL;
|
| 1762 |
} |
| 1763 |
|
| 1764 |
void qemu_chr_reset(CharDriverState *s)
|
| 1765 |
{
|
| 1766 |
if (s->bh == NULL) { |
| 1767 |
s->bh = qemu_bh_new(qemu_chr_reset_bh, s); |
| 1768 |
qemu_bh_schedule(s->bh); |
| 1769 |
} |
| 1770 |
} |
| 1771 |
|
| 1772 |
int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len) |
| 1773 |
{
|
| 1774 |
return s->chr_write(s, buf, len);
|
| 1775 |
} |
| 1776 |
|
| 1777 |
int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg) |
| 1778 |
{
|
| 1779 |
if (!s->chr_ioctl)
|
| 1780 |
return -ENOTSUP;
|
| 1781 |
return s->chr_ioctl(s, cmd, arg);
|
| 1782 |
} |
| 1783 |
|
| 1784 |
int qemu_chr_can_read(CharDriverState *s)
|
| 1785 |
{
|
| 1786 |
if (!s->chr_can_read)
|
| 1787 |
return 0; |
| 1788 |
return s->chr_can_read(s->handler_opaque);
|
| 1789 |
} |
| 1790 |
|
| 1791 |
void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len) |
| 1792 |
{
|
| 1793 |
s->chr_read(s->handler_opaque, buf, len); |
| 1794 |
} |
| 1795 |
|
| 1796 |
void qemu_chr_accept_input(CharDriverState *s)
|
| 1797 |
{
|
| 1798 |
if (s->chr_accept_input)
|
| 1799 |
s->chr_accept_input(s); |
| 1800 |
} |
| 1801 |
|
| 1802 |
void qemu_chr_printf(CharDriverState *s, const char *fmt, ...) |
| 1803 |
{
|
| 1804 |
char buf[4096]; |
| 1805 |
va_list ap; |
| 1806 |
va_start(ap, fmt); |
| 1807 |
vsnprintf(buf, sizeof(buf), fmt, ap);
|
| 1808 |
qemu_chr_write(s, (uint8_t *)buf, strlen(buf)); |
| 1809 |
va_end(ap); |
| 1810 |
} |
| 1811 |
|
| 1812 |
void qemu_chr_send_event(CharDriverState *s, int event) |
| 1813 |
{
|
| 1814 |
if (s->chr_send_event)
|
| 1815 |
s->chr_send_event(s, event); |
| 1816 |
} |
| 1817 |
|
| 1818 |
void qemu_chr_add_handlers(CharDriverState *s,
|
| 1819 |
IOCanRWHandler *fd_can_read, |
| 1820 |
IOReadHandler *fd_read, |
| 1821 |
IOEventHandler *fd_event, |
| 1822 |
void *opaque)
|
| 1823 |
{
|
| 1824 |
s->chr_can_read = fd_can_read; |
| 1825 |
s->chr_read = fd_read; |
| 1826 |
s->chr_event = fd_event; |
| 1827 |
s->handler_opaque = opaque; |
| 1828 |
if (s->chr_update_read_handler)
|
| 1829 |
s->chr_update_read_handler(s); |
| 1830 |
} |
| 1831 |
|
| 1832 |
static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 1833 |
{
|
| 1834 |
return len;
|
| 1835 |
} |
| 1836 |
|
| 1837 |
static CharDriverState *qemu_chr_open_null(void) |
| 1838 |
{
|
| 1839 |
CharDriverState *chr; |
| 1840 |
|
| 1841 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 1842 |
if (!chr)
|
| 1843 |
return NULL; |
| 1844 |
chr->chr_write = null_chr_write; |
| 1845 |
return chr;
|
| 1846 |
} |
| 1847 |
|
| 1848 |
/* MUX driver for serial I/O splitting */
|
| 1849 |
static int term_timestamps; |
| 1850 |
static int64_t term_timestamps_start;
|
| 1851 |
#define MAX_MUX 4 |
| 1852 |
#define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */ |
| 1853 |
#define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1) |
| 1854 |
typedef struct { |
| 1855 |
IOCanRWHandler *chr_can_read[MAX_MUX]; |
| 1856 |
IOReadHandler *chr_read[MAX_MUX]; |
| 1857 |
IOEventHandler *chr_event[MAX_MUX]; |
| 1858 |
void *ext_opaque[MAX_MUX];
|
| 1859 |
CharDriverState *drv; |
| 1860 |
unsigned char buffer[MUX_BUFFER_SIZE]; |
| 1861 |
int prod;
|
| 1862 |
int cons;
|
| 1863 |
int mux_cnt;
|
| 1864 |
int term_got_escape;
|
| 1865 |
int max_size;
|
| 1866 |
} MuxDriver; |
| 1867 |
|
| 1868 |
|
| 1869 |
static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 1870 |
{
|
| 1871 |
MuxDriver *d = chr->opaque; |
| 1872 |
int ret;
|
| 1873 |
if (!term_timestamps) {
|
| 1874 |
ret = d->drv->chr_write(d->drv, buf, len); |
| 1875 |
} else {
|
| 1876 |
int i;
|
| 1877 |
|
| 1878 |
ret = 0;
|
| 1879 |
for(i = 0; i < len; i++) { |
| 1880 |
ret += d->drv->chr_write(d->drv, buf+i, 1);
|
| 1881 |
if (buf[i] == '\n') { |
| 1882 |
char buf1[64]; |
| 1883 |
int64_t ti; |
| 1884 |
int secs;
|
| 1885 |
|
| 1886 |
ti = get_clock(); |
| 1887 |
if (term_timestamps_start == -1) |
| 1888 |
term_timestamps_start = ti; |
| 1889 |
ti -= term_timestamps_start; |
| 1890 |
secs = ti / 1000000000;
|
| 1891 |
snprintf(buf1, sizeof(buf1),
|
| 1892 |
"[%02d:%02d:%02d.%03d] ",
|
| 1893 |
secs / 3600,
|
| 1894 |
(secs / 60) % 60, |
| 1895 |
secs % 60,
|
| 1896 |
(int)((ti / 1000000) % 1000)); |
| 1897 |
d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1)); |
| 1898 |
} |
| 1899 |
} |
| 1900 |
} |
| 1901 |
return ret;
|
| 1902 |
} |
| 1903 |
|
| 1904 |
static const char * const mux_help[] = { |
| 1905 |
"% h print this help\n\r",
|
| 1906 |
"% x exit emulator\n\r",
|
| 1907 |
"% s save disk data back to file (if -snapshot)\n\r",
|
| 1908 |
"% t toggle console timestamps\n\r"
|
| 1909 |
"% b send break (magic sysrq)\n\r",
|
| 1910 |
"% c switch between console and monitor\n\r",
|
| 1911 |
"% % sends %\n\r",
|
| 1912 |
NULL
|
| 1913 |
}; |
| 1914 |
|
| 1915 |
static int term_escape_char = 0x01; /* ctrl-a is used for escape */ |
| 1916 |
static void mux_print_help(CharDriverState *chr) |
| 1917 |
{
|
| 1918 |
int i, j;
|
| 1919 |
char ebuf[15] = "Escape-Char"; |
| 1920 |
char cbuf[50] = "\n\r"; |
| 1921 |
|
| 1922 |
if (term_escape_char > 0 && term_escape_char < 26) { |
| 1923 |
snprintf(cbuf, sizeof(cbuf), "\n\r"); |
| 1924 |
snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a'); |
| 1925 |
} else {
|
| 1926 |
snprintf(cbuf, sizeof(cbuf),
|
| 1927 |
"\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
|
| 1928 |
term_escape_char); |
| 1929 |
} |
| 1930 |
chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf)); |
| 1931 |
for (i = 0; mux_help[i] != NULL; i++) { |
| 1932 |
for (j=0; mux_help[i][j] != '\0'; j++) { |
| 1933 |
if (mux_help[i][j] == '%') |
| 1934 |
chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf)); |
| 1935 |
else
|
| 1936 |
chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
|
| 1937 |
} |
| 1938 |
} |
| 1939 |
} |
| 1940 |
|
| 1941 |
static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch) |
| 1942 |
{
|
| 1943 |
if (d->term_got_escape) {
|
| 1944 |
d->term_got_escape = 0;
|
| 1945 |
if (ch == term_escape_char)
|
| 1946 |
goto send_char;
|
| 1947 |
switch(ch) {
|
| 1948 |
case '?': |
| 1949 |
case 'h': |
| 1950 |
mux_print_help(chr); |
| 1951 |
break;
|
| 1952 |
case 'x': |
| 1953 |
{
|
| 1954 |
const char *term = "QEMU: Terminated\n\r"; |
| 1955 |
chr->chr_write(chr,(uint8_t *)term,strlen(term)); |
| 1956 |
exit(0);
|
| 1957 |
break;
|
| 1958 |
} |
| 1959 |
case 's': |
| 1960 |
{
|
| 1961 |
int i;
|
| 1962 |
for (i = 0; i < nb_drives; i++) { |
| 1963 |
bdrv_commit(drives_table[i].bdrv); |
| 1964 |
} |
| 1965 |
} |
| 1966 |
break;
|
| 1967 |
case 'b': |
| 1968 |
qemu_chr_event(chr, CHR_EVENT_BREAK); |
| 1969 |
break;
|
| 1970 |
case 'c': |
| 1971 |
/* Switch to the next registered device */
|
| 1972 |
chr->focus++; |
| 1973 |
if (chr->focus >= d->mux_cnt)
|
| 1974 |
chr->focus = 0;
|
| 1975 |
break;
|
| 1976 |
case 't': |
| 1977 |
term_timestamps = !term_timestamps; |
| 1978 |
term_timestamps_start = -1;
|
| 1979 |
break;
|
| 1980 |
} |
| 1981 |
} else if (ch == term_escape_char) { |
| 1982 |
d->term_got_escape = 1;
|
| 1983 |
} else {
|
| 1984 |
send_char:
|
| 1985 |
return 1; |
| 1986 |
} |
| 1987 |
return 0; |
| 1988 |
} |
| 1989 |
|
| 1990 |
static void mux_chr_accept_input(CharDriverState *chr) |
| 1991 |
{
|
| 1992 |
int m = chr->focus;
|
| 1993 |
MuxDriver *d = chr->opaque; |
| 1994 |
|
| 1995 |
while (d->prod != d->cons &&
|
| 1996 |
d->chr_can_read[m] && |
| 1997 |
d->chr_can_read[m](d->ext_opaque[m])) {
|
| 1998 |
d->chr_read[m](d->ext_opaque[m], |
| 1999 |
&d->buffer[d->cons++ & MUX_BUFFER_MASK], 1);
|
| 2000 |
} |
| 2001 |
} |
| 2002 |
|
| 2003 |
static int mux_chr_can_read(void *opaque) |
| 2004 |
{
|
| 2005 |
CharDriverState *chr = opaque; |
| 2006 |
MuxDriver *d = chr->opaque; |
| 2007 |
|
| 2008 |
if ((d->prod - d->cons) < MUX_BUFFER_SIZE)
|
| 2009 |
return 1; |
| 2010 |
if (d->chr_can_read[chr->focus])
|
| 2011 |
return d->chr_can_read[chr->focus](d->ext_opaque[chr->focus]);
|
| 2012 |
return 0; |
| 2013 |
} |
| 2014 |
|
| 2015 |
static void mux_chr_read(void *opaque, const uint8_t *buf, int size) |
| 2016 |
{
|
| 2017 |
CharDriverState *chr = opaque; |
| 2018 |
MuxDriver *d = chr->opaque; |
| 2019 |
int m = chr->focus;
|
| 2020 |
int i;
|
| 2021 |
|
| 2022 |
mux_chr_accept_input (opaque); |
| 2023 |
|
| 2024 |
for(i = 0; i < size; i++) |
| 2025 |
if (mux_proc_byte(chr, d, buf[i])) {
|
| 2026 |
if (d->prod == d->cons &&
|
| 2027 |
d->chr_can_read[m] && |
| 2028 |
d->chr_can_read[m](d->ext_opaque[m])) |
| 2029 |
d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
|
| 2030 |
else
|
| 2031 |
d->buffer[d->prod++ & MUX_BUFFER_MASK] = buf[i]; |
| 2032 |
} |
| 2033 |
} |
| 2034 |
|
| 2035 |
static void mux_chr_event(void *opaque, int event) |
| 2036 |
{
|
| 2037 |
CharDriverState *chr = opaque; |
| 2038 |
MuxDriver *d = chr->opaque; |
| 2039 |
int i;
|
| 2040 |
|
| 2041 |
/* Send the event to all registered listeners */
|
| 2042 |
for (i = 0; i < d->mux_cnt; i++) |
| 2043 |
if (d->chr_event[i])
|
| 2044 |
d->chr_event[i](d->ext_opaque[i], event); |
| 2045 |
} |
| 2046 |
|
| 2047 |
static void mux_chr_update_read_handler(CharDriverState *chr) |
| 2048 |
{
|
| 2049 |
MuxDriver *d = chr->opaque; |
| 2050 |
|
| 2051 |
if (d->mux_cnt >= MAX_MUX) {
|
| 2052 |
fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
|
| 2053 |
return;
|
| 2054 |
} |
| 2055 |
d->ext_opaque[d->mux_cnt] = chr->handler_opaque; |
| 2056 |
d->chr_can_read[d->mux_cnt] = chr->chr_can_read; |
| 2057 |
d->chr_read[d->mux_cnt] = chr->chr_read; |
| 2058 |
d->chr_event[d->mux_cnt] = chr->chr_event; |
| 2059 |
/* Fix up the real driver with mux routines */
|
| 2060 |
if (d->mux_cnt == 0) { |
| 2061 |
qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read, |
| 2062 |
mux_chr_event, chr); |
| 2063 |
} |
| 2064 |
chr->focus = d->mux_cnt; |
| 2065 |
d->mux_cnt++; |
| 2066 |
} |
| 2067 |
|
| 2068 |
static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
|
| 2069 |
{
|
| 2070 |
CharDriverState *chr; |
| 2071 |
MuxDriver *d; |
| 2072 |
|
| 2073 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 2074 |
if (!chr)
|
| 2075 |
return NULL; |
| 2076 |
d = qemu_mallocz(sizeof(MuxDriver));
|
| 2077 |
if (!d) {
|
| 2078 |
free(chr); |
| 2079 |
return NULL; |
| 2080 |
} |
| 2081 |
|
| 2082 |
chr->opaque = d; |
| 2083 |
d->drv = drv; |
| 2084 |
chr->focus = -1;
|
| 2085 |
chr->chr_write = mux_chr_write; |
| 2086 |
chr->chr_update_read_handler = mux_chr_update_read_handler; |
| 2087 |
chr->chr_accept_input = mux_chr_accept_input; |
| 2088 |
return chr;
|
| 2089 |
} |
| 2090 |
|
| 2091 |
|
| 2092 |
#ifdef _WIN32
|
| 2093 |
|
| 2094 |
static void socket_cleanup(void) |
| 2095 |
{
|
| 2096 |
WSACleanup(); |
| 2097 |
} |
| 2098 |
|
| 2099 |
static int socket_init(void) |
| 2100 |
{
|
| 2101 |
WSADATA Data; |
| 2102 |
int ret, err;
|
| 2103 |
|
| 2104 |
ret = WSAStartup(MAKEWORD(2,2), &Data); |
| 2105 |
if (ret != 0) { |
| 2106 |
err = WSAGetLastError(); |
| 2107 |
fprintf(stderr, "WSAStartup: %d\n", err);
|
| 2108 |
return -1; |
| 2109 |
} |
| 2110 |
atexit(socket_cleanup); |
| 2111 |
return 0; |
| 2112 |
} |
| 2113 |
|
| 2114 |
static int send_all(int fd, const uint8_t *buf, int len1) |
| 2115 |
{
|
| 2116 |
int ret, len;
|
| 2117 |
|
| 2118 |
len = len1; |
| 2119 |
while (len > 0) { |
| 2120 |
ret = send(fd, buf, len, 0);
|
| 2121 |
if (ret < 0) { |
| 2122 |
int errno;
|
| 2123 |
errno = WSAGetLastError(); |
| 2124 |
if (errno != WSAEWOULDBLOCK) {
|
| 2125 |
return -1; |
| 2126 |
} |
| 2127 |
} else if (ret == 0) { |
| 2128 |
break;
|
| 2129 |
} else {
|
| 2130 |
buf += ret; |
| 2131 |
len -= ret; |
| 2132 |
} |
| 2133 |
} |
| 2134 |
return len1 - len;
|
| 2135 |
} |
| 2136 |
|
| 2137 |
#else
|
| 2138 |
|
| 2139 |
static int unix_write(int fd, const uint8_t *buf, int len1) |
| 2140 |
{
|
| 2141 |
int ret, len;
|
| 2142 |
|
| 2143 |
len = len1; |
| 2144 |
while (len > 0) { |
| 2145 |
ret = write(fd, buf, len); |
| 2146 |
if (ret < 0) { |
| 2147 |
if (errno != EINTR && errno != EAGAIN)
|
| 2148 |
return -1; |
| 2149 |
} else if (ret == 0) { |
| 2150 |
break;
|
| 2151 |
} else {
|
| 2152 |
buf += ret; |
| 2153 |
len -= ret; |
| 2154 |
} |
| 2155 |
} |
| 2156 |
return len1 - len;
|
| 2157 |
} |
| 2158 |
|
| 2159 |
static inline int send_all(int fd, const uint8_t *buf, int len1) |
| 2160 |
{
|
| 2161 |
return unix_write(fd, buf, len1);
|
| 2162 |
} |
| 2163 |
#endif /* !_WIN32 */ |
| 2164 |
|
| 2165 |
#ifndef _WIN32
|
| 2166 |
|
| 2167 |
typedef struct { |
| 2168 |
int fd_in, fd_out;
|
| 2169 |
int max_size;
|
| 2170 |
} FDCharDriver; |
| 2171 |
|
| 2172 |
#define STDIO_MAX_CLIENTS 1 |
| 2173 |
static int stdio_nb_clients = 0; |
| 2174 |
|
| 2175 |
static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 2176 |
{
|
| 2177 |
FDCharDriver *s = chr->opaque; |
| 2178 |
return unix_write(s->fd_out, buf, len);
|
| 2179 |
} |
| 2180 |
|
| 2181 |
static int fd_chr_read_poll(void *opaque) |
| 2182 |
{
|
| 2183 |
CharDriverState *chr = opaque; |
| 2184 |
FDCharDriver *s = chr->opaque; |
| 2185 |
|
| 2186 |
s->max_size = qemu_chr_can_read(chr); |
| 2187 |
return s->max_size;
|
| 2188 |
} |
| 2189 |
|
| 2190 |
static void fd_chr_read(void *opaque) |
| 2191 |
{
|
| 2192 |
CharDriverState *chr = opaque; |
| 2193 |
FDCharDriver *s = chr->opaque; |
| 2194 |
int size, len;
|
| 2195 |
uint8_t buf[1024];
|
| 2196 |
|
| 2197 |
len = sizeof(buf);
|
| 2198 |
if (len > s->max_size)
|
| 2199 |
len = s->max_size; |
| 2200 |
if (len == 0) |
| 2201 |
return;
|
| 2202 |
size = read(s->fd_in, buf, len); |
| 2203 |
if (size == 0) { |
| 2204 |
/* FD has been closed. Remove it from the active list. */
|
| 2205 |
qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL); |
| 2206 |
return;
|
| 2207 |
} |
| 2208 |
if (size > 0) { |
| 2209 |
qemu_chr_read(chr, buf, size); |
| 2210 |
} |
| 2211 |
} |
| 2212 |
|
| 2213 |
static void fd_chr_update_read_handler(CharDriverState *chr) |
| 2214 |
{
|
| 2215 |
FDCharDriver *s = chr->opaque; |
| 2216 |
|
| 2217 |
if (s->fd_in >= 0) { |
| 2218 |
if (nographic && s->fd_in == 0) { |
| 2219 |
} else {
|
| 2220 |
qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll, |
| 2221 |
fd_chr_read, NULL, chr);
|
| 2222 |
} |
| 2223 |
} |
| 2224 |
} |
| 2225 |
|
| 2226 |
static void fd_chr_close(struct CharDriverState *chr) |
| 2227 |
{
|
| 2228 |
FDCharDriver *s = chr->opaque; |
| 2229 |
|
| 2230 |
if (s->fd_in >= 0) { |
| 2231 |
if (nographic && s->fd_in == 0) { |
| 2232 |
} else {
|
| 2233 |
qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL); |
| 2234 |
} |
| 2235 |
} |
| 2236 |
|
| 2237 |
qemu_free(s); |
| 2238 |
} |
| 2239 |
|
| 2240 |
/* open a character device to a unix fd */
|
| 2241 |
static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out) |
| 2242 |
{
|
| 2243 |
CharDriverState *chr; |
| 2244 |
FDCharDriver *s; |
| 2245 |
|
| 2246 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 2247 |
if (!chr)
|
| 2248 |
return NULL; |
| 2249 |
s = qemu_mallocz(sizeof(FDCharDriver));
|
| 2250 |
if (!s) {
|
| 2251 |
free(chr); |
| 2252 |
return NULL; |
| 2253 |
} |
| 2254 |
s->fd_in = fd_in; |
| 2255 |
s->fd_out = fd_out; |
| 2256 |
chr->opaque = s; |
| 2257 |
chr->chr_write = fd_chr_write; |
| 2258 |
chr->chr_update_read_handler = fd_chr_update_read_handler; |
| 2259 |
chr->chr_close = fd_chr_close; |
| 2260 |
|
| 2261 |
qemu_chr_reset(chr); |
| 2262 |
|
| 2263 |
return chr;
|
| 2264 |
} |
| 2265 |
|
| 2266 |
static CharDriverState *qemu_chr_open_file_out(const char *file_out) |
| 2267 |
{
|
| 2268 |
int fd_out;
|
| 2269 |
|
| 2270 |
TFR(fd_out = open(file_out, O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
|
| 2271 |
if (fd_out < 0) |
| 2272 |
return NULL; |
| 2273 |
return qemu_chr_open_fd(-1, fd_out); |
| 2274 |
} |
| 2275 |
|
| 2276 |
static CharDriverState *qemu_chr_open_pipe(const char *filename) |
| 2277 |
{
|
| 2278 |
int fd_in, fd_out;
|
| 2279 |
char filename_in[256], filename_out[256]; |
| 2280 |
|
| 2281 |
snprintf(filename_in, 256, "%s.in", filename); |
| 2282 |
snprintf(filename_out, 256, "%s.out", filename); |
| 2283 |
TFR(fd_in = open(filename_in, O_RDWR | O_BINARY)); |
| 2284 |
TFR(fd_out = open(filename_out, O_RDWR | O_BINARY)); |
| 2285 |
if (fd_in < 0 || fd_out < 0) { |
| 2286 |
if (fd_in >= 0) |
| 2287 |
close(fd_in); |
| 2288 |
if (fd_out >= 0) |
| 2289 |
close(fd_out); |
| 2290 |
TFR(fd_in = fd_out = open(filename, O_RDWR | O_BINARY)); |
| 2291 |
if (fd_in < 0) |
| 2292 |
return NULL; |
| 2293 |
} |
| 2294 |
return qemu_chr_open_fd(fd_in, fd_out);
|
| 2295 |
} |
| 2296 |
|
| 2297 |
|
| 2298 |
/* for STDIO, we handle the case where several clients use it
|
| 2299 |
(nographic mode) */
|
| 2300 |
|
| 2301 |
#define TERM_FIFO_MAX_SIZE 1 |
| 2302 |
|
| 2303 |
static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
|
| 2304 |
static int term_fifo_size; |
| 2305 |
|
| 2306 |
static int stdio_read_poll(void *opaque) |
| 2307 |
{
|
| 2308 |
CharDriverState *chr = opaque; |
| 2309 |
|
| 2310 |
/* try to flush the queue if needed */
|
| 2311 |
if (term_fifo_size != 0 && qemu_chr_can_read(chr) > 0) { |
| 2312 |
qemu_chr_read(chr, term_fifo, 1);
|
| 2313 |
term_fifo_size = 0;
|
| 2314 |
} |
| 2315 |
/* see if we can absorb more chars */
|
| 2316 |
if (term_fifo_size == 0) |
| 2317 |
return 1; |
| 2318 |
else
|
| 2319 |
return 0; |
| 2320 |
} |
| 2321 |
|
| 2322 |
static void stdio_read(void *opaque) |
| 2323 |
{
|
| 2324 |
int size;
|
| 2325 |
uint8_t buf[1];
|
| 2326 |
CharDriverState *chr = opaque; |
| 2327 |
|
| 2328 |
size = read(0, buf, 1); |
| 2329 |
if (size == 0) { |
| 2330 |
/* stdin has been closed. Remove it from the active list. */
|
| 2331 |
qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL); |
| 2332 |
return;
|
| 2333 |
} |
| 2334 |
if (size > 0) { |
| 2335 |
if (qemu_chr_can_read(chr) > 0) { |
| 2336 |
qemu_chr_read(chr, buf, 1);
|
| 2337 |
} else if (term_fifo_size == 0) { |
| 2338 |
term_fifo[term_fifo_size++] = buf[0];
|
| 2339 |
} |
| 2340 |
} |
| 2341 |
} |
| 2342 |
|
| 2343 |
/* init terminal so that we can grab keys */
|
| 2344 |
static struct termios oldtty; |
| 2345 |
static int old_fd0_flags; |
| 2346 |
static int term_atexit_done; |
| 2347 |
|
| 2348 |
static void term_exit(void) |
| 2349 |
{
|
| 2350 |
tcsetattr (0, TCSANOW, &oldtty);
|
| 2351 |
fcntl(0, F_SETFL, old_fd0_flags);
|
| 2352 |
} |
| 2353 |
|
| 2354 |
static void term_init(void) |
| 2355 |
{
|
| 2356 |
struct termios tty;
|
| 2357 |
|
| 2358 |
tcgetattr (0, &tty);
|
| 2359 |
oldtty = tty; |
| 2360 |
old_fd0_flags = fcntl(0, F_GETFL);
|
| 2361 |
|
| 2362 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
| 2363 |
|INLCR|IGNCR|ICRNL|IXON); |
| 2364 |
tty.c_oflag |= OPOST; |
| 2365 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
| 2366 |
/* if graphical mode, we allow Ctrl-C handling */
|
| 2367 |
if (nographic)
|
| 2368 |
tty.c_lflag &= ~ISIG; |
| 2369 |
tty.c_cflag &= ~(CSIZE|PARENB); |
| 2370 |
tty.c_cflag |= CS8; |
| 2371 |
tty.c_cc[VMIN] = 1;
|
| 2372 |
tty.c_cc[VTIME] = 0;
|
| 2373 |
|
| 2374 |
tcsetattr (0, TCSANOW, &tty);
|
| 2375 |
|
| 2376 |
if (!term_atexit_done++)
|
| 2377 |
atexit(term_exit); |
| 2378 |
|
| 2379 |
fcntl(0, F_SETFL, O_NONBLOCK);
|
| 2380 |
} |
| 2381 |
|
| 2382 |
static void qemu_chr_close_stdio(struct CharDriverState *chr) |
| 2383 |
{
|
| 2384 |
term_exit(); |
| 2385 |
stdio_nb_clients--; |
| 2386 |
qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL); |
| 2387 |
fd_chr_close(chr); |
| 2388 |
} |
| 2389 |
|
| 2390 |
static CharDriverState *qemu_chr_open_stdio(void) |
| 2391 |
{
|
| 2392 |
CharDriverState *chr; |
| 2393 |
|
| 2394 |
if (stdio_nb_clients >= STDIO_MAX_CLIENTS)
|
| 2395 |
return NULL; |
| 2396 |
chr = qemu_chr_open_fd(0, 1); |
| 2397 |
chr->chr_close = qemu_chr_close_stdio; |
| 2398 |
qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr); |
| 2399 |
stdio_nb_clients++; |
| 2400 |
term_init(); |
| 2401 |
|
| 2402 |
return chr;
|
| 2403 |
} |
| 2404 |
|
| 2405 |
#ifdef __sun__
|
| 2406 |
/* Once Solaris has openpty(), this is going to be removed. */
|
| 2407 |
int openpty(int *amaster, int *aslave, char *name, |
| 2408 |
struct termios *termp, struct winsize *winp) |
| 2409 |
{
|
| 2410 |
const char *slave; |
| 2411 |
int mfd = -1, sfd = -1; |
| 2412 |
|
| 2413 |
*amaster = *aslave = -1;
|
| 2414 |
|
| 2415 |
mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
|
| 2416 |
if (mfd < 0) |
| 2417 |
goto err;
|
| 2418 |
|
| 2419 |
if (grantpt(mfd) == -1 || unlockpt(mfd) == -1) |
| 2420 |
goto err;
|
| 2421 |
|
| 2422 |
if ((slave = ptsname(mfd)) == NULL) |
| 2423 |
goto err;
|
| 2424 |
|
| 2425 |
if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1) |
| 2426 |
goto err;
|
| 2427 |
|
| 2428 |
if (ioctl(sfd, I_PUSH, "ptem") == -1 || |
| 2429 |
(termp != NULL && tcgetattr(sfd, termp) < 0)) |
| 2430 |
goto err;
|
| 2431 |
|
| 2432 |
if (amaster)
|
| 2433 |
*amaster = mfd; |
| 2434 |
if (aslave)
|
| 2435 |
*aslave = sfd; |
| 2436 |
if (winp)
|
| 2437 |
ioctl(sfd, TIOCSWINSZ, winp); |
| 2438 |
|
| 2439 |
return 0; |
| 2440 |
|
| 2441 |
err:
|
| 2442 |
if (sfd != -1) |
| 2443 |
close(sfd); |
| 2444 |
close(mfd); |
| 2445 |
return -1; |
| 2446 |
} |
| 2447 |
|
| 2448 |
void cfmakeraw (struct termios *termios_p) |
| 2449 |
{
|
| 2450 |
termios_p->c_iflag &= |
| 2451 |
~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON); |
| 2452 |
termios_p->c_oflag &= ~OPOST; |
| 2453 |
termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); |
| 2454 |
termios_p->c_cflag &= ~(CSIZE|PARENB); |
| 2455 |
termios_p->c_cflag |= CS8; |
| 2456 |
|
| 2457 |
termios_p->c_cc[VMIN] = 0;
|
| 2458 |
termios_p->c_cc[VTIME] = 0;
|
| 2459 |
} |
| 2460 |
#endif
|
| 2461 |
|
| 2462 |
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|
| 2463 |
|| defined(__NetBSD__) || defined(__OpenBSD__) |
| 2464 |
|
| 2465 |
typedef struct { |
| 2466 |
int fd;
|
| 2467 |
int connected;
|
| 2468 |
int polling;
|
| 2469 |
int read_bytes;
|
| 2470 |
QEMUTimer *timer; |
| 2471 |
} PtyCharDriver; |
| 2472 |
|
| 2473 |
static void pty_chr_update_read_handler(CharDriverState *chr); |
| 2474 |
static void pty_chr_state(CharDriverState *chr, int connected); |
| 2475 |
|
| 2476 |
static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 2477 |
{
|
| 2478 |
PtyCharDriver *s = chr->opaque; |
| 2479 |
|
| 2480 |
if (!s->connected) {
|
| 2481 |
/* guest sends data, check for (re-)connect */
|
| 2482 |
pty_chr_update_read_handler(chr); |
| 2483 |
return 0; |
| 2484 |
} |
| 2485 |
return unix_write(s->fd, buf, len);
|
| 2486 |
} |
| 2487 |
|
| 2488 |
static int pty_chr_read_poll(void *opaque) |
| 2489 |
{
|
| 2490 |
CharDriverState *chr = opaque; |
| 2491 |
PtyCharDriver *s = chr->opaque; |
| 2492 |
|
| 2493 |
s->read_bytes = qemu_chr_can_read(chr); |
| 2494 |
return s->read_bytes;
|
| 2495 |
} |
| 2496 |
|
| 2497 |
static void pty_chr_read(void *opaque) |
| 2498 |
{
|
| 2499 |
CharDriverState *chr = opaque; |
| 2500 |
PtyCharDriver *s = chr->opaque; |
| 2501 |
int size, len;
|
| 2502 |
uint8_t buf[1024];
|
| 2503 |
|
| 2504 |
len = sizeof(buf);
|
| 2505 |
if (len > s->read_bytes)
|
| 2506 |
len = s->read_bytes; |
| 2507 |
if (len == 0) |
| 2508 |
return;
|
| 2509 |
size = read(s->fd, buf, len); |
| 2510 |
if ((size == -1 && errno == EIO) || |
| 2511 |
(size == 0)) {
|
| 2512 |
pty_chr_state(chr, 0);
|
| 2513 |
return;
|
| 2514 |
} |
| 2515 |
if (size > 0) { |
| 2516 |
pty_chr_state(chr, 1);
|
| 2517 |
qemu_chr_read(chr, buf, size); |
| 2518 |
} |
| 2519 |
} |
| 2520 |
|
| 2521 |
static void pty_chr_update_read_handler(CharDriverState *chr) |
| 2522 |
{
|
| 2523 |
PtyCharDriver *s = chr->opaque; |
| 2524 |
|
| 2525 |
qemu_set_fd_handler2(s->fd, pty_chr_read_poll, |
| 2526 |
pty_chr_read, NULL, chr);
|
| 2527 |
s->polling = 1;
|
| 2528 |
/*
|
| 2529 |
* Short timeout here: just need wait long enougth that qemu makes
|
| 2530 |
* it through the poll loop once. When reconnected we want a
|
| 2531 |
* short timeout so we notice it almost instantly. Otherwise
|
| 2532 |
* read() gives us -EIO instantly, making pty_chr_state() reset the
|
| 2533 |
* timeout to the normal (much longer) poll interval before the
|
| 2534 |
* timer triggers.
|
| 2535 |
*/
|
| 2536 |
qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 10);
|
| 2537 |
} |
| 2538 |
|
| 2539 |
static void pty_chr_state(CharDriverState *chr, int connected) |
| 2540 |
{
|
| 2541 |
PtyCharDriver *s = chr->opaque; |
| 2542 |
|
| 2543 |
if (!connected) {
|
| 2544 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
| 2545 |
s->connected = 0;
|
| 2546 |
s->polling = 0;
|
| 2547 |
/* (re-)connect poll interval for idle guests: once per second.
|
| 2548 |
* We check more frequently in case the guests sends data to
|
| 2549 |
* the virtual device linked to our pty. */
|
| 2550 |
qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 1000);
|
| 2551 |
} else {
|
| 2552 |
if (!s->connected)
|
| 2553 |
qemu_chr_reset(chr); |
| 2554 |
s->connected = 1;
|
| 2555 |
} |
| 2556 |
} |
| 2557 |
|
| 2558 |
static void pty_chr_timer(void *opaque) |
| 2559 |
{
|
| 2560 |
struct CharDriverState *chr = opaque;
|
| 2561 |
PtyCharDriver *s = chr->opaque; |
| 2562 |
|
| 2563 |
if (s->connected)
|
| 2564 |
return;
|
| 2565 |
if (s->polling) {
|
| 2566 |
/* If we arrive here without polling being cleared due
|
| 2567 |
* read returning -EIO, then we are (re-)connected */
|
| 2568 |
pty_chr_state(chr, 1);
|
| 2569 |
return;
|
| 2570 |
} |
| 2571 |
|
| 2572 |
/* Next poll ... */
|
| 2573 |
pty_chr_update_read_handler(chr); |
| 2574 |
} |
| 2575 |
|
| 2576 |
static void pty_chr_close(struct CharDriverState *chr) |
| 2577 |
{
|
| 2578 |
PtyCharDriver *s = chr->opaque; |
| 2579 |
|
| 2580 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
| 2581 |
close(s->fd); |
| 2582 |
qemu_free(s); |
| 2583 |
} |
| 2584 |
|
| 2585 |
static CharDriverState *qemu_chr_open_pty(void) |
| 2586 |
{
|
| 2587 |
CharDriverState *chr; |
| 2588 |
PtyCharDriver *s; |
| 2589 |
struct termios tty;
|
| 2590 |
int slave_fd;
|
| 2591 |
#if defined(__OpenBSD__)
|
| 2592 |
char pty_name[PATH_MAX];
|
| 2593 |
#define q_ptsname(x) pty_name
|
| 2594 |
#else
|
| 2595 |
char *pty_name = NULL; |
| 2596 |
#define q_ptsname(x) ptsname(x)
|
| 2597 |
#endif
|
| 2598 |
|
| 2599 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 2600 |
if (!chr)
|
| 2601 |
return NULL; |
| 2602 |
s = qemu_mallocz(sizeof(PtyCharDriver));
|
| 2603 |
if (!s) {
|
| 2604 |
qemu_free(chr); |
| 2605 |
return NULL; |
| 2606 |
} |
| 2607 |
|
| 2608 |
if (openpty(&s->fd, &slave_fd, pty_name, NULL, NULL) < 0) { |
| 2609 |
return NULL; |
| 2610 |
} |
| 2611 |
|
| 2612 |
/* Set raw attributes on the pty. */
|
| 2613 |
cfmakeraw(&tty); |
| 2614 |
tcsetattr(slave_fd, TCSAFLUSH, &tty); |
| 2615 |
close(slave_fd); |
| 2616 |
|
| 2617 |
fprintf(stderr, "char device redirected to %s\n", q_ptsname(s->fd));
|
| 2618 |
|
| 2619 |
chr->opaque = s; |
| 2620 |
chr->chr_write = pty_chr_write; |
| 2621 |
chr->chr_update_read_handler = pty_chr_update_read_handler; |
| 2622 |
chr->chr_close = pty_chr_close; |
| 2623 |
|
| 2624 |
s->timer = qemu_new_timer(rt_clock, pty_chr_timer, chr); |
| 2625 |
|
| 2626 |
return chr;
|
| 2627 |
} |
| 2628 |
|
| 2629 |
static void tty_serial_init(int fd, int speed, |
| 2630 |
int parity, int data_bits, int stop_bits) |
| 2631 |
{
|
| 2632 |
struct termios tty;
|
| 2633 |
speed_t spd; |
| 2634 |
|
| 2635 |
#if 0
|
| 2636 |
printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
|
| 2637 |
speed, parity, data_bits, stop_bits);
|
| 2638 |
#endif
|
| 2639 |
tcgetattr (fd, &tty); |
| 2640 |
|
| 2641 |
#define MARGIN 1.1 |
| 2642 |
if (speed <= 50 * MARGIN) |
| 2643 |
spd = B50; |
| 2644 |
else if (speed <= 75 * MARGIN) |
| 2645 |
spd = B75; |
| 2646 |
else if (speed <= 300 * MARGIN) |
| 2647 |
spd = B300; |
| 2648 |
else if (speed <= 600 * MARGIN) |
| 2649 |
spd = B600; |
| 2650 |
else if (speed <= 1200 * MARGIN) |
| 2651 |
spd = B1200; |
| 2652 |
else if (speed <= 2400 * MARGIN) |
| 2653 |
spd = B2400; |
| 2654 |
else if (speed <= 4800 * MARGIN) |
| 2655 |
spd = B4800; |
| 2656 |
else if (speed <= 9600 * MARGIN) |
| 2657 |
spd = B9600; |
| 2658 |
else if (speed <= 19200 * MARGIN) |
| 2659 |
spd = B19200; |
| 2660 |
else if (speed <= 38400 * MARGIN) |
| 2661 |
spd = B38400; |
| 2662 |
else if (speed <= 57600 * MARGIN) |
| 2663 |
spd = B57600; |
| 2664 |
else if (speed <= 115200 * MARGIN) |
| 2665 |
spd = B115200; |
| 2666 |
else
|
| 2667 |
spd = B115200; |
| 2668 |
|
| 2669 |
cfsetispeed(&tty, spd); |
| 2670 |
cfsetospeed(&tty, spd); |
| 2671 |
|
| 2672 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
| 2673 |
|INLCR|IGNCR|ICRNL|IXON); |
| 2674 |
tty.c_oflag |= OPOST; |
| 2675 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG); |
| 2676 |
tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB); |
| 2677 |
switch(data_bits) {
|
| 2678 |
default:
|
| 2679 |
case 8: |
| 2680 |
tty.c_cflag |= CS8; |
| 2681 |
break;
|
| 2682 |
case 7: |
| 2683 |
tty.c_cflag |= CS7; |
| 2684 |
break;
|
| 2685 |
case 6: |
| 2686 |
tty.c_cflag |= CS6; |
| 2687 |
break;
|
| 2688 |
case 5: |
| 2689 |
tty.c_cflag |= CS5; |
| 2690 |
break;
|
| 2691 |
} |
| 2692 |
switch(parity) {
|
| 2693 |
default:
|
| 2694 |
case 'N': |
| 2695 |
break;
|
| 2696 |
case 'E': |
| 2697 |
tty.c_cflag |= PARENB; |
| 2698 |
break;
|
| 2699 |
case 'O': |
| 2700 |
tty.c_cflag |= PARENB | PARODD; |
| 2701 |
break;
|
| 2702 |
} |
| 2703 |
if (stop_bits == 2) |
| 2704 |
tty.c_cflag |= CSTOPB; |
| 2705 |
|
| 2706 |
tcsetattr (fd, TCSANOW, &tty); |
| 2707 |
} |
| 2708 |
|
| 2709 |
static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg) |
| 2710 |
{
|
| 2711 |
FDCharDriver *s = chr->opaque; |
| 2712 |
|
| 2713 |
switch(cmd) {
|
| 2714 |
case CHR_IOCTL_SERIAL_SET_PARAMS:
|
| 2715 |
{
|
| 2716 |
QEMUSerialSetParams *ssp = arg; |
| 2717 |
tty_serial_init(s->fd_in, ssp->speed, ssp->parity, |
| 2718 |
ssp->data_bits, ssp->stop_bits); |
| 2719 |
} |
| 2720 |
break;
|
| 2721 |
case CHR_IOCTL_SERIAL_SET_BREAK:
|
| 2722 |
{
|
| 2723 |
int enable = *(int *)arg; |
| 2724 |
if (enable)
|
| 2725 |
tcsendbreak(s->fd_in, 1);
|
| 2726 |
} |
| 2727 |
break;
|
| 2728 |
case CHR_IOCTL_SERIAL_GET_TIOCM:
|
| 2729 |
{
|
| 2730 |
int sarg = 0; |
| 2731 |
int *targ = (int *)arg; |
| 2732 |
ioctl(s->fd_in, TIOCMGET, &sarg); |
| 2733 |
*targ = 0;
|
| 2734 |
if (sarg | TIOCM_CTS)
|
| 2735 |
*targ |= CHR_TIOCM_CTS; |
| 2736 |
if (sarg | TIOCM_CAR)
|
| 2737 |
*targ |= CHR_TIOCM_CAR; |
| 2738 |
if (sarg | TIOCM_DSR)
|
| 2739 |
*targ |= CHR_TIOCM_DSR; |
| 2740 |
if (sarg | TIOCM_RI)
|
| 2741 |
*targ |= CHR_TIOCM_RI; |
| 2742 |
if (sarg | TIOCM_DTR)
|
| 2743 |
*targ |= CHR_TIOCM_DTR; |
| 2744 |
if (sarg | TIOCM_RTS)
|
| 2745 |
*targ |= CHR_TIOCM_RTS; |
| 2746 |
} |
| 2747 |
break;
|
| 2748 |
case CHR_IOCTL_SERIAL_SET_TIOCM:
|
| 2749 |
{
|
| 2750 |
int sarg = *(int *)arg; |
| 2751 |
int targ = 0; |
| 2752 |
if (sarg | CHR_TIOCM_DTR)
|
| 2753 |
targ |= TIOCM_DTR; |
| 2754 |
if (sarg | CHR_TIOCM_RTS)
|
| 2755 |
targ |= TIOCM_RTS; |
| 2756 |
ioctl(s->fd_in, TIOCMSET, &targ); |
| 2757 |
} |
| 2758 |
break;
|
| 2759 |
default:
|
| 2760 |
return -ENOTSUP;
|
| 2761 |
} |
| 2762 |
return 0; |
| 2763 |
} |
| 2764 |
|
| 2765 |
static CharDriverState *qemu_chr_open_tty(const char *filename) |
| 2766 |
{
|
| 2767 |
CharDriverState *chr; |
| 2768 |
int fd;
|
| 2769 |
|
| 2770 |
TFR(fd = open(filename, O_RDWR | O_NONBLOCK)); |
| 2771 |
tty_serial_init(fd, 115200, 'N', 8, 1); |
| 2772 |
chr = qemu_chr_open_fd(fd, fd); |
| 2773 |
if (!chr) {
|
| 2774 |
close(fd); |
| 2775 |
return NULL; |
| 2776 |
} |
| 2777 |
chr->chr_ioctl = tty_serial_ioctl; |
| 2778 |
qemu_chr_reset(chr); |
| 2779 |
return chr;
|
| 2780 |
} |
| 2781 |
#else /* ! __linux__ && ! __sun__ */ |
| 2782 |
static CharDriverState *qemu_chr_open_pty(void) |
| 2783 |
{
|
| 2784 |
return NULL; |
| 2785 |
} |
| 2786 |
#endif /* __linux__ || __sun__ */ |
| 2787 |
|
| 2788 |
#if defined(__linux__)
|
| 2789 |
typedef struct { |
| 2790 |
int fd;
|
| 2791 |
int mode;
|
| 2792 |
} ParallelCharDriver; |
| 2793 |
|
| 2794 |
static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode) |
| 2795 |
{
|
| 2796 |
if (s->mode != mode) {
|
| 2797 |
int m = mode;
|
| 2798 |
if (ioctl(s->fd, PPSETMODE, &m) < 0) |
| 2799 |
return 0; |
| 2800 |
s->mode = mode; |
| 2801 |
} |
| 2802 |
return 1; |
| 2803 |
} |
| 2804 |
|
| 2805 |
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) |
| 2806 |
{
|
| 2807 |
ParallelCharDriver *drv = chr->opaque; |
| 2808 |
int fd = drv->fd;
|
| 2809 |
uint8_t b; |
| 2810 |
|
| 2811 |
switch(cmd) {
|
| 2812 |
case CHR_IOCTL_PP_READ_DATA:
|
| 2813 |
if (ioctl(fd, PPRDATA, &b) < 0) |
| 2814 |
return -ENOTSUP;
|
| 2815 |
*(uint8_t *)arg = b; |
| 2816 |
break;
|
| 2817 |
case CHR_IOCTL_PP_WRITE_DATA:
|
| 2818 |
b = *(uint8_t *)arg; |
| 2819 |
if (ioctl(fd, PPWDATA, &b) < 0) |
| 2820 |
return -ENOTSUP;
|
| 2821 |
break;
|
| 2822 |
case CHR_IOCTL_PP_READ_CONTROL:
|
| 2823 |
if (ioctl(fd, PPRCONTROL, &b) < 0) |
| 2824 |
return -ENOTSUP;
|
| 2825 |
/* Linux gives only the lowest bits, and no way to know data
|
| 2826 |
direction! For better compatibility set the fixed upper
|
| 2827 |
bits. */
|
| 2828 |
*(uint8_t *)arg = b | 0xc0;
|
| 2829 |
break;
|
| 2830 |
case CHR_IOCTL_PP_WRITE_CONTROL:
|
| 2831 |
b = *(uint8_t *)arg; |
| 2832 |
if (ioctl(fd, PPWCONTROL, &b) < 0) |
| 2833 |
return -ENOTSUP;
|
| 2834 |
break;
|
| 2835 |
case CHR_IOCTL_PP_READ_STATUS:
|
| 2836 |
if (ioctl(fd, PPRSTATUS, &b) < 0) |
| 2837 |
return -ENOTSUP;
|
| 2838 |
*(uint8_t *)arg = b; |
| 2839 |
break;
|
| 2840 |
case CHR_IOCTL_PP_DATA_DIR:
|
| 2841 |
if (ioctl(fd, PPDATADIR, (int *)arg) < 0) |
| 2842 |
return -ENOTSUP;
|
| 2843 |
break;
|
| 2844 |
case CHR_IOCTL_PP_EPP_READ_ADDR:
|
| 2845 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
| 2846 |
struct ParallelIOArg *parg = arg;
|
| 2847 |
int n = read(fd, parg->buffer, parg->count);
|
| 2848 |
if (n != parg->count) {
|
| 2849 |
return -EIO;
|
| 2850 |
} |
| 2851 |
} |
| 2852 |
break;
|
| 2853 |
case CHR_IOCTL_PP_EPP_READ:
|
| 2854 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
| 2855 |
struct ParallelIOArg *parg = arg;
|
| 2856 |
int n = read(fd, parg->buffer, parg->count);
|
| 2857 |
if (n != parg->count) {
|
| 2858 |
return -EIO;
|
| 2859 |
} |
| 2860 |
} |
| 2861 |
break;
|
| 2862 |
case CHR_IOCTL_PP_EPP_WRITE_ADDR:
|
| 2863 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
| 2864 |
struct ParallelIOArg *parg = arg;
|
| 2865 |
int n = write(fd, parg->buffer, parg->count);
|
| 2866 |
if (n != parg->count) {
|
| 2867 |
return -EIO;
|
| 2868 |
} |
| 2869 |
} |
| 2870 |
break;
|
| 2871 |
case CHR_IOCTL_PP_EPP_WRITE:
|
| 2872 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
| 2873 |
struct ParallelIOArg *parg = arg;
|
| 2874 |
int n = write(fd, parg->buffer, parg->count);
|
| 2875 |
if (n != parg->count) {
|
| 2876 |
return -EIO;
|
| 2877 |
} |
| 2878 |
} |
| 2879 |
break;
|
| 2880 |
default:
|
| 2881 |
return -ENOTSUP;
|
| 2882 |
} |
| 2883 |
return 0; |
| 2884 |
} |
| 2885 |
|
| 2886 |
static void pp_close(CharDriverState *chr) |
| 2887 |
{
|
| 2888 |
ParallelCharDriver *drv = chr->opaque; |
| 2889 |
int fd = drv->fd;
|
| 2890 |
|
| 2891 |
pp_hw_mode(drv, IEEE1284_MODE_COMPAT); |
| 2892 |
ioctl(fd, PPRELEASE); |
| 2893 |
close(fd); |
| 2894 |
qemu_free(drv); |
| 2895 |
} |
| 2896 |
|
| 2897 |
static CharDriverState *qemu_chr_open_pp(const char *filename) |
| 2898 |
{
|
| 2899 |
CharDriverState *chr; |
| 2900 |
ParallelCharDriver *drv; |
| 2901 |
int fd;
|
| 2902 |
|
| 2903 |
TFR(fd = open(filename, O_RDWR)); |
| 2904 |
if (fd < 0) |
| 2905 |
return NULL; |
| 2906 |
|
| 2907 |
if (ioctl(fd, PPCLAIM) < 0) { |
| 2908 |
close(fd); |
| 2909 |
return NULL; |
| 2910 |
} |
| 2911 |
|
| 2912 |
drv = qemu_mallocz(sizeof(ParallelCharDriver));
|
| 2913 |
if (!drv) {
|
| 2914 |
close(fd); |
| 2915 |
return NULL; |
| 2916 |
} |
| 2917 |
drv->fd = fd; |
| 2918 |
drv->mode = IEEE1284_MODE_COMPAT; |
| 2919 |
|
| 2920 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 2921 |
if (!chr) {
|
| 2922 |
qemu_free(drv); |
| 2923 |
close(fd); |
| 2924 |
return NULL; |
| 2925 |
} |
| 2926 |
chr->chr_write = null_chr_write; |
| 2927 |
chr->chr_ioctl = pp_ioctl; |
| 2928 |
chr->chr_close = pp_close; |
| 2929 |
chr->opaque = drv; |
| 2930 |
|
| 2931 |
qemu_chr_reset(chr); |
| 2932 |
|
| 2933 |
return chr;
|
| 2934 |
} |
| 2935 |
#endif /* __linux__ */ |
| 2936 |
|
| 2937 |
#else /* _WIN32 */ |
| 2938 |
|
| 2939 |
typedef struct { |
| 2940 |
int max_size;
|
| 2941 |
HANDLE hcom, hrecv, hsend; |
| 2942 |
OVERLAPPED orecv, osend; |
| 2943 |
BOOL fpipe; |
| 2944 |
DWORD len; |
| 2945 |
} WinCharState; |
| 2946 |
|
| 2947 |
#define NSENDBUF 2048 |
| 2948 |
#define NRECVBUF 2048 |
| 2949 |
#define MAXCONNECT 1 |
| 2950 |
#define NTIMEOUT 5000 |
| 2951 |
|
| 2952 |
static int win_chr_poll(void *opaque); |
| 2953 |
static int win_chr_pipe_poll(void *opaque); |
| 2954 |
|
| 2955 |
static void win_chr_close(CharDriverState *chr) |
| 2956 |
{
|
| 2957 |
WinCharState *s = chr->opaque; |
| 2958 |
|
| 2959 |
if (s->hsend) {
|
| 2960 |
CloseHandle(s->hsend); |
| 2961 |
s->hsend = NULL;
|
| 2962 |
} |
| 2963 |
if (s->hrecv) {
|
| 2964 |
CloseHandle(s->hrecv); |
| 2965 |
s->hrecv = NULL;
|
| 2966 |
} |
| 2967 |
if (s->hcom) {
|
| 2968 |
CloseHandle(s->hcom); |
| 2969 |
s->hcom = NULL;
|
| 2970 |
} |
| 2971 |
if (s->fpipe)
|
| 2972 |
qemu_del_polling_cb(win_chr_pipe_poll, chr); |
| 2973 |
else
|
| 2974 |
qemu_del_polling_cb(win_chr_poll, chr); |
| 2975 |
} |
| 2976 |
|
| 2977 |
static int win_chr_init(CharDriverState *chr, const char *filename) |
| 2978 |
{
|
| 2979 |
WinCharState *s = chr->opaque; |
| 2980 |
COMMCONFIG comcfg; |
| 2981 |
COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
|
| 2982 |
COMSTAT comstat; |
| 2983 |
DWORD size; |
| 2984 |
DWORD err; |
| 2985 |
|
| 2986 |
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 2987 |
if (!s->hsend) {
|
| 2988 |
fprintf(stderr, "Failed CreateEvent\n");
|
| 2989 |
goto fail;
|
| 2990 |
} |
| 2991 |
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 2992 |
if (!s->hrecv) {
|
| 2993 |
fprintf(stderr, "Failed CreateEvent\n");
|
| 2994 |
goto fail;
|
| 2995 |
} |
| 2996 |
|
| 2997 |
s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL, |
| 2998 |
OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
|
| 2999 |
if (s->hcom == INVALID_HANDLE_VALUE) {
|
| 3000 |
fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
|
| 3001 |
s->hcom = NULL;
|
| 3002 |
goto fail;
|
| 3003 |
} |
| 3004 |
|
| 3005 |
if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
|
| 3006 |
fprintf(stderr, "Failed SetupComm\n");
|
| 3007 |
goto fail;
|
| 3008 |
} |
| 3009 |
|
| 3010 |
ZeroMemory(&comcfg, sizeof(COMMCONFIG));
|
| 3011 |
size = sizeof(COMMCONFIG);
|
| 3012 |
GetDefaultCommConfig(filename, &comcfg, &size); |
| 3013 |
comcfg.dcb.DCBlength = sizeof(DCB);
|
| 3014 |
CommConfigDialog(filename, NULL, &comcfg);
|
| 3015 |
|
| 3016 |
if (!SetCommState(s->hcom, &comcfg.dcb)) {
|
| 3017 |
fprintf(stderr, "Failed SetCommState\n");
|
| 3018 |
goto fail;
|
| 3019 |
} |
| 3020 |
|
| 3021 |
if (!SetCommMask(s->hcom, EV_ERR)) {
|
| 3022 |
fprintf(stderr, "Failed SetCommMask\n");
|
| 3023 |
goto fail;
|
| 3024 |
} |
| 3025 |
|
| 3026 |
cto.ReadIntervalTimeout = MAXDWORD; |
| 3027 |
if (!SetCommTimeouts(s->hcom, &cto)) {
|
| 3028 |
fprintf(stderr, "Failed SetCommTimeouts\n");
|
| 3029 |
goto fail;
|
| 3030 |
} |
| 3031 |
|
| 3032 |
if (!ClearCommError(s->hcom, &err, &comstat)) {
|
| 3033 |
fprintf(stderr, "Failed ClearCommError\n");
|
| 3034 |
goto fail;
|
| 3035 |
} |
| 3036 |
qemu_add_polling_cb(win_chr_poll, chr); |
| 3037 |
return 0; |
| 3038 |
|
| 3039 |
fail:
|
| 3040 |
win_chr_close(chr); |
| 3041 |
return -1; |
| 3042 |
} |
| 3043 |
|
| 3044 |
static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1) |
| 3045 |
{
|
| 3046 |
WinCharState *s = chr->opaque; |
| 3047 |
DWORD len, ret, size, err; |
| 3048 |
|
| 3049 |
len = len1; |
| 3050 |
ZeroMemory(&s->osend, sizeof(s->osend));
|
| 3051 |
s->osend.hEvent = s->hsend; |
| 3052 |
while (len > 0) { |
| 3053 |
if (s->hsend)
|
| 3054 |
ret = WriteFile(s->hcom, buf, len, &size, &s->osend); |
| 3055 |
else
|
| 3056 |
ret = WriteFile(s->hcom, buf, len, &size, NULL);
|
| 3057 |
if (!ret) {
|
| 3058 |
err = GetLastError(); |
| 3059 |
if (err == ERROR_IO_PENDING) {
|
| 3060 |
ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE); |
| 3061 |
if (ret) {
|
| 3062 |
buf += size; |
| 3063 |
len -= size; |
| 3064 |
} else {
|
| 3065 |
break;
|
| 3066 |
} |
| 3067 |
} else {
|
| 3068 |
break;
|
| 3069 |
} |
| 3070 |
} else {
|
| 3071 |
buf += size; |
| 3072 |
len -= size; |
| 3073 |
} |
| 3074 |
} |
| 3075 |
return len1 - len;
|
| 3076 |
} |
| 3077 |
|
| 3078 |
static int win_chr_read_poll(CharDriverState *chr) |
| 3079 |
{
|
| 3080 |
WinCharState *s = chr->opaque; |
| 3081 |
|
| 3082 |
s->max_size = qemu_chr_can_read(chr); |
| 3083 |
return s->max_size;
|
| 3084 |
} |
| 3085 |
|
| 3086 |
static void win_chr_readfile(CharDriverState *chr) |
| 3087 |
{
|
| 3088 |
WinCharState *s = chr->opaque; |
| 3089 |
int ret, err;
|
| 3090 |
uint8_t buf[1024];
|
| 3091 |
DWORD size; |
| 3092 |
|
| 3093 |
ZeroMemory(&s->orecv, sizeof(s->orecv));
|
| 3094 |
s->orecv.hEvent = s->hrecv; |
| 3095 |
ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv); |
| 3096 |
if (!ret) {
|
| 3097 |
err = GetLastError(); |
| 3098 |
if (err == ERROR_IO_PENDING) {
|
| 3099 |
ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE); |
| 3100 |
} |
| 3101 |
} |
| 3102 |
|
| 3103 |
if (size > 0) { |
| 3104 |
qemu_chr_read(chr, buf, size); |
| 3105 |
} |
| 3106 |
} |
| 3107 |
|
| 3108 |
static void win_chr_read(CharDriverState *chr) |
| 3109 |
{
|
| 3110 |
WinCharState *s = chr->opaque; |
| 3111 |
|
| 3112 |
if (s->len > s->max_size)
|
| 3113 |
s->len = s->max_size; |
| 3114 |
if (s->len == 0) |
| 3115 |
return;
|
| 3116 |
|
| 3117 |
win_chr_readfile(chr); |
| 3118 |
} |
| 3119 |
|
| 3120 |
static int win_chr_poll(void *opaque) |
| 3121 |
{
|
| 3122 |
CharDriverState *chr = opaque; |
| 3123 |
WinCharState *s = chr->opaque; |
| 3124 |
COMSTAT status; |
| 3125 |
DWORD comerr; |
| 3126 |
|
| 3127 |
ClearCommError(s->hcom, &comerr, &status); |
| 3128 |
if (status.cbInQue > 0) { |
| 3129 |
s->len = status.cbInQue; |
| 3130 |
win_chr_read_poll(chr); |
| 3131 |
win_chr_read(chr); |
| 3132 |
return 1; |
| 3133 |
} |
| 3134 |
return 0; |
| 3135 |
} |
| 3136 |
|
| 3137 |
static CharDriverState *qemu_chr_open_win(const char *filename) |
| 3138 |
{
|
| 3139 |
CharDriverState *chr; |
| 3140 |
WinCharState *s; |
| 3141 |
|
| 3142 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 3143 |
if (!chr)
|
| 3144 |
return NULL; |
| 3145 |
s = qemu_mallocz(sizeof(WinCharState));
|
| 3146 |
if (!s) {
|
| 3147 |
free(chr); |
| 3148 |
return NULL; |
| 3149 |
} |
| 3150 |
chr->opaque = s; |
| 3151 |
chr->chr_write = win_chr_write; |
| 3152 |
chr->chr_close = win_chr_close; |
| 3153 |
|
| 3154 |
if (win_chr_init(chr, filename) < 0) { |
| 3155 |
free(s); |
| 3156 |
free(chr); |
| 3157 |
return NULL; |
| 3158 |
} |
| 3159 |
qemu_chr_reset(chr); |
| 3160 |
return chr;
|
| 3161 |
} |
| 3162 |
|
| 3163 |
static int win_chr_pipe_poll(void *opaque) |
| 3164 |
{
|
| 3165 |
CharDriverState *chr = opaque; |
| 3166 |
WinCharState *s = chr->opaque; |
| 3167 |
DWORD size; |
| 3168 |
|
| 3169 |
PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL); |
| 3170 |
if (size > 0) { |
| 3171 |
s->len = size; |
| 3172 |
win_chr_read_poll(chr); |
| 3173 |
win_chr_read(chr); |
| 3174 |
return 1; |
| 3175 |
} |
| 3176 |
return 0; |
| 3177 |
} |
| 3178 |
|
| 3179 |
static int win_chr_pipe_init(CharDriverState *chr, const char *filename) |
| 3180 |
{
|
| 3181 |
WinCharState *s = chr->opaque; |
| 3182 |
OVERLAPPED ov; |
| 3183 |
int ret;
|
| 3184 |
DWORD size; |
| 3185 |
char openname[256]; |
| 3186 |
|
| 3187 |
s->fpipe = TRUE; |
| 3188 |
|
| 3189 |
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 3190 |
if (!s->hsend) {
|
| 3191 |
fprintf(stderr, "Failed CreateEvent\n");
|
| 3192 |
goto fail;
|
| 3193 |
} |
| 3194 |
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 3195 |
if (!s->hrecv) {
|
| 3196 |
fprintf(stderr, "Failed CreateEvent\n");
|
| 3197 |
goto fail;
|
| 3198 |
} |
| 3199 |
|
| 3200 |
snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename); |
| 3201 |
s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, |
| 3202 |
PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | |
| 3203 |
PIPE_WAIT, |
| 3204 |
MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
|
| 3205 |
if (s->hcom == INVALID_HANDLE_VALUE) {
|
| 3206 |
fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
|
| 3207 |
s->hcom = NULL;
|
| 3208 |
goto fail;
|
| 3209 |
} |
| 3210 |
|
| 3211 |
ZeroMemory(&ov, sizeof(ov));
|
| 3212 |
ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 3213 |
ret = ConnectNamedPipe(s->hcom, &ov); |
| 3214 |
if (ret) {
|
| 3215 |
fprintf(stderr, "Failed ConnectNamedPipe\n");
|
| 3216 |
goto fail;
|
| 3217 |
} |
| 3218 |
|
| 3219 |
ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE); |
| 3220 |
if (!ret) {
|
| 3221 |
fprintf(stderr, "Failed GetOverlappedResult\n");
|
| 3222 |
if (ov.hEvent) {
|
| 3223 |
CloseHandle(ov.hEvent); |
| 3224 |
ov.hEvent = NULL;
|
| 3225 |
} |
| 3226 |
goto fail;
|
| 3227 |
} |
| 3228 |
|
| 3229 |
if (ov.hEvent) {
|
| 3230 |
CloseHandle(ov.hEvent); |
| 3231 |
ov.hEvent = NULL;
|
| 3232 |
} |
| 3233 |
qemu_add_polling_cb(win_chr_pipe_poll, chr); |
| 3234 |
return 0; |
| 3235 |
|
| 3236 |
fail:
|
| 3237 |
win_chr_close(chr); |
| 3238 |
return -1; |
| 3239 |
} |
| 3240 |
|
| 3241 |
|
| 3242 |
static CharDriverState *qemu_chr_open_win_pipe(const char *filename) |
| 3243 |
{
|
| 3244 |
CharDriverState *chr; |
| 3245 |
WinCharState *s; |
| 3246 |
|
| 3247 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 3248 |
if (!chr)
|
| 3249 |
return NULL; |
| 3250 |
s = qemu_mallocz(sizeof(WinCharState));
|
| 3251 |
if (!s) {
|
| 3252 |
free(chr); |
| 3253 |
return NULL; |
| 3254 |
} |
| 3255 |
chr->opaque = s; |
| 3256 |
chr->chr_write = win_chr_write; |
| 3257 |
chr->chr_close = win_chr_close; |
| 3258 |
|
| 3259 |
if (win_chr_pipe_init(chr, filename) < 0) { |
| 3260 |
free(s); |
| 3261 |
free(chr); |
| 3262 |
return NULL; |
| 3263 |
} |
| 3264 |
qemu_chr_reset(chr); |
| 3265 |
return chr;
|
| 3266 |
} |
| 3267 |
|
| 3268 |
static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
|
| 3269 |
{
|
| 3270 |
CharDriverState *chr; |
| 3271 |
WinCharState *s; |
| 3272 |
|
| 3273 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 3274 |
if (!chr)
|
| 3275 |
return NULL; |
| 3276 |
s = qemu_mallocz(sizeof(WinCharState));
|
| 3277 |
if (!s) {
|
| 3278 |
free(chr); |
| 3279 |
return NULL; |
| 3280 |
} |
| 3281 |
s->hcom = fd_out; |
| 3282 |
chr->opaque = s; |
| 3283 |
chr->chr_write = win_chr_write; |
| 3284 |
qemu_chr_reset(chr); |
| 3285 |
return chr;
|
| 3286 |
} |
| 3287 |
|
| 3288 |
static CharDriverState *qemu_chr_open_win_con(const char *filename) |
| 3289 |
{
|
| 3290 |
return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
|
| 3291 |
} |
| 3292 |
|
| 3293 |
static CharDriverState *qemu_chr_open_win_file_out(const char *file_out) |
| 3294 |
{
|
| 3295 |
HANDLE fd_out; |
| 3296 |
|
| 3297 |
fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
|
| 3298 |
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
|
| 3299 |
if (fd_out == INVALID_HANDLE_VALUE)
|
| 3300 |
return NULL; |
| 3301 |
|
| 3302 |
return qemu_chr_open_win_file(fd_out);
|
| 3303 |
} |
| 3304 |
#endif /* !_WIN32 */ |
| 3305 |
|
| 3306 |
/***********************************************************/
|
| 3307 |
/* UDP Net console */
|
| 3308 |
|
| 3309 |
typedef struct { |
| 3310 |
int fd;
|
| 3311 |
struct sockaddr_in daddr;
|
| 3312 |
uint8_t buf[1024];
|
| 3313 |
int bufcnt;
|
| 3314 |
int bufptr;
|
| 3315 |
int max_size;
|
| 3316 |
} NetCharDriver; |
| 3317 |
|
| 3318 |
static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 3319 |
{
|
| 3320 |
NetCharDriver *s = chr->opaque; |
| 3321 |
|
| 3322 |
return sendto(s->fd, buf, len, 0, |
| 3323 |
(struct sockaddr *)&s->daddr, sizeof(struct sockaddr_in)); |
| 3324 |
} |
| 3325 |
|
| 3326 |
static int udp_chr_read_poll(void *opaque) |
| 3327 |
{
|
| 3328 |
CharDriverState *chr = opaque; |
| 3329 |
NetCharDriver *s = chr->opaque; |
| 3330 |
|
| 3331 |
s->max_size = qemu_chr_can_read(chr); |
| 3332 |
|
| 3333 |
/* If there were any stray characters in the queue process them
|
| 3334 |
* first
|
| 3335 |
*/
|
| 3336 |
while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
| 3337 |
qemu_chr_read(chr, &s->buf[s->bufptr], 1);
|
| 3338 |
s->bufptr++; |
| 3339 |
s->max_size = qemu_chr_can_read(chr); |
| 3340 |
} |
| 3341 |
return s->max_size;
|
| 3342 |
} |
| 3343 |
|
| 3344 |
static void udp_chr_read(void *opaque) |
| 3345 |
{
|
| 3346 |
CharDriverState *chr = opaque; |
| 3347 |
NetCharDriver *s = chr->opaque; |
| 3348 |
|
| 3349 |
if (s->max_size == 0) |
| 3350 |
return;
|
| 3351 |
s->bufcnt = recv(s->fd, s->buf, sizeof(s->buf), 0); |
| 3352 |
s->bufptr = s->bufcnt; |
| 3353 |
if (s->bufcnt <= 0) |
| 3354 |
return;
|
| 3355 |
|
| 3356 |
s->bufptr = 0;
|
| 3357 |
while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
| 3358 |
qemu_chr_read(chr, &s->buf[s->bufptr], 1);
|
| 3359 |
s->bufptr++; |
| 3360 |
s->max_size = qemu_chr_can_read(chr); |
| 3361 |
} |
| 3362 |
} |
| 3363 |
|
| 3364 |
static void udp_chr_update_read_handler(CharDriverState *chr) |
| 3365 |
{
|
| 3366 |
NetCharDriver *s = chr->opaque; |
| 3367 |
|
| 3368 |
if (s->fd >= 0) { |
| 3369 |
qemu_set_fd_handler2(s->fd, udp_chr_read_poll, |
| 3370 |
udp_chr_read, NULL, chr);
|
| 3371 |
} |
| 3372 |
} |
| 3373 |
|
| 3374 |
int parse_host_port(struct sockaddr_in *saddr, const char *str); |
| 3375 |
#ifndef _WIN32
|
| 3376 |
static int parse_unix_path(struct sockaddr_un *uaddr, const char *str); |
| 3377 |
#endif
|
| 3378 |
int parse_host_src_port(struct sockaddr_in *haddr, |
| 3379 |
struct sockaddr_in *saddr,
|
| 3380 |
const char *str); |
| 3381 |
|
| 3382 |
static CharDriverState *qemu_chr_open_udp(const char *def) |
| 3383 |
{
|
| 3384 |
CharDriverState *chr = NULL;
|
| 3385 |
NetCharDriver *s = NULL;
|
| 3386 |
int fd = -1; |
| 3387 |
struct sockaddr_in saddr;
|
| 3388 |
|
| 3389 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 3390 |
if (!chr)
|
| 3391 |
goto return_err;
|
| 3392 |
s = qemu_mallocz(sizeof(NetCharDriver));
|
| 3393 |
if (!s)
|
| 3394 |
goto return_err;
|
| 3395 |
|
| 3396 |
fd = socket(PF_INET, SOCK_DGRAM, 0);
|
| 3397 |
if (fd < 0) { |
| 3398 |
perror("socket(PF_INET, SOCK_DGRAM)");
|
| 3399 |
goto return_err;
|
| 3400 |
} |
| 3401 |
|
| 3402 |
if (parse_host_src_port(&s->daddr, &saddr, def) < 0) { |
| 3403 |
printf("Could not parse: %s\n", def);
|
| 3404 |
goto return_err;
|
| 3405 |
} |
| 3406 |
|
| 3407 |
if (bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)) < 0) |
| 3408 |
{
|
| 3409 |
perror("bind");
|
| 3410 |
goto return_err;
|
| 3411 |
} |
| 3412 |
|
| 3413 |
s->fd = fd; |
| 3414 |
s->bufcnt = 0;
|
| 3415 |
s->bufptr = 0;
|
| 3416 |
chr->opaque = s; |
| 3417 |
chr->chr_write = udp_chr_write; |
| 3418 |
chr->chr_update_read_handler = udp_chr_update_read_handler; |
| 3419 |
return chr;
|
| 3420 |
|
| 3421 |
return_err:
|
| 3422 |
if (chr)
|
| 3423 |
free(chr); |
| 3424 |
if (s)
|
| 3425 |
free(s); |
| 3426 |
if (fd >= 0) |
| 3427 |
closesocket(fd); |
| 3428 |
return NULL; |
| 3429 |
} |
| 3430 |
|
| 3431 |
/***********************************************************/
|
| 3432 |
/* TCP Net console */
|
| 3433 |
|
| 3434 |
typedef struct { |
| 3435 |
int fd, listen_fd;
|
| 3436 |
int connected;
|
| 3437 |
int max_size;
|
| 3438 |
int do_telnetopt;
|
| 3439 |
int do_nodelay;
|
| 3440 |
int is_unix;
|
| 3441 |
} TCPCharDriver; |
| 3442 |
|
| 3443 |
static void tcp_chr_accept(void *opaque); |
| 3444 |
|
| 3445 |
static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 3446 |
{
|
| 3447 |
TCPCharDriver *s = chr->opaque; |
| 3448 |
if (s->connected) {
|
| 3449 |
return send_all(s->fd, buf, len);
|
| 3450 |
} else {
|
| 3451 |
/* XXX: indicate an error ? */
|
| 3452 |
return len;
|
| 3453 |
} |
| 3454 |
} |
| 3455 |
|
| 3456 |
static int tcp_chr_read_poll(void *opaque) |
| 3457 |
{
|
| 3458 |
CharDriverState *chr = opaque; |
| 3459 |
TCPCharDriver *s = chr->opaque; |
| 3460 |
if (!s->connected)
|
| 3461 |
return 0; |
| 3462 |
s->max_size = qemu_chr_can_read(chr); |
| 3463 |
return s->max_size;
|
| 3464 |
} |
| 3465 |
|
| 3466 |
#define IAC 255 |
| 3467 |
#define IAC_BREAK 243 |
| 3468 |
static void tcp_chr_process_IAC_bytes(CharDriverState *chr, |
| 3469 |
TCPCharDriver *s, |
| 3470 |
uint8_t *buf, int *size)
|
| 3471 |
{
|
| 3472 |
/* Handle any telnet client's basic IAC options to satisfy char by
|
| 3473 |
* char mode with no echo. All IAC options will be removed from
|
| 3474 |
* the buf and the do_telnetopt variable will be used to track the
|
| 3475 |
* state of the width of the IAC information.
|
| 3476 |
*
|
| 3477 |
* IAC commands come in sets of 3 bytes with the exception of the
|
| 3478 |
* "IAC BREAK" command and the double IAC.
|
| 3479 |
*/
|
| 3480 |
|
| 3481 |
int i;
|
| 3482 |
int j = 0; |
| 3483 |
|
| 3484 |
for (i = 0; i < *size; i++) { |
| 3485 |
if (s->do_telnetopt > 1) { |
| 3486 |
if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) { |
| 3487 |
/* Double IAC means send an IAC */
|
| 3488 |
if (j != i)
|
| 3489 |
buf[j] = buf[i]; |
| 3490 |
j++; |
| 3491 |
s->do_telnetopt = 1;
|
| 3492 |
} else {
|
| 3493 |
if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) { |
| 3494 |
/* Handle IAC break commands by sending a serial break */
|
| 3495 |
qemu_chr_event(chr, CHR_EVENT_BREAK); |
| 3496 |
s->do_telnetopt++; |
| 3497 |
} |
| 3498 |
s->do_telnetopt++; |
| 3499 |
} |
| 3500 |
if (s->do_telnetopt >= 4) { |
| 3501 |
s->do_telnetopt = 1;
|
| 3502 |
} |
| 3503 |
} else {
|
| 3504 |
if ((unsigned char)buf[i] == IAC) { |
| 3505 |
s->do_telnetopt = 2;
|
| 3506 |
} else {
|
| 3507 |
if (j != i)
|
| 3508 |
buf[j] = buf[i]; |
| 3509 |
j++; |
| 3510 |
} |
| 3511 |
} |
| 3512 |
} |
| 3513 |
*size = j; |
| 3514 |
} |
| 3515 |
|
| 3516 |
static void tcp_chr_read(void *opaque) |
| 3517 |
{
|
| 3518 |
CharDriverState *chr = opaque; |
| 3519 |
TCPCharDriver *s = chr->opaque; |
| 3520 |
uint8_t buf[1024];
|
| 3521 |
int len, size;
|
| 3522 |
|
| 3523 |
if (!s->connected || s->max_size <= 0) |
| 3524 |
return;
|
| 3525 |
len = sizeof(buf);
|
| 3526 |
if (len > s->max_size)
|
| 3527 |
len = s->max_size; |
| 3528 |
size = recv(s->fd, buf, len, 0);
|
| 3529 |
if (size == 0) { |
| 3530 |
/* connection closed */
|
| 3531 |
s->connected = 0;
|
| 3532 |
if (s->listen_fd >= 0) { |
| 3533 |
qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
|
| 3534 |
} |
| 3535 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
| 3536 |
closesocket(s->fd); |
| 3537 |
s->fd = -1;
|
| 3538 |
} else if (size > 0) { |
| 3539 |
if (s->do_telnetopt)
|
| 3540 |
tcp_chr_process_IAC_bytes(chr, s, buf, &size); |
| 3541 |
if (size > 0) |
| 3542 |
qemu_chr_read(chr, buf, size); |
| 3543 |
} |
| 3544 |
} |
| 3545 |
|
| 3546 |
static void tcp_chr_connect(void *opaque) |
| 3547 |
{
|
| 3548 |
CharDriverState *chr = opaque; |
| 3549 |
TCPCharDriver *s = chr->opaque; |
| 3550 |
|
| 3551 |
s->connected = 1;
|
| 3552 |
qemu_set_fd_handler2(s->fd, tcp_chr_read_poll, |
| 3553 |
tcp_chr_read, NULL, chr);
|
| 3554 |
qemu_chr_reset(chr); |
| 3555 |
} |
| 3556 |
|
| 3557 |
#define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c; |
| 3558 |
static void tcp_chr_telnet_init(int fd) |
| 3559 |
{
|
| 3560 |
char buf[3]; |
| 3561 |
/* Send the telnet negotion to put telnet in binary, no echo, single char mode */
|
| 3562 |
IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */ |
| 3563 |
send(fd, (char *)buf, 3, 0); |
| 3564 |
IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */ |
| 3565 |
send(fd, (char *)buf, 3, 0); |
| 3566 |
IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */ |
| 3567 |
send(fd, (char *)buf, 3, 0); |
| 3568 |
IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */ |
| 3569 |
send(fd, (char *)buf, 3, 0); |
| 3570 |
} |
| 3571 |
|
| 3572 |
static void socket_set_nodelay(int fd) |
| 3573 |
{
|
| 3574 |
int val = 1; |
| 3575 |
setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val)); |
| 3576 |
} |
| 3577 |
|
| 3578 |
static void tcp_chr_accept(void *opaque) |
| 3579 |
{
|
| 3580 |
CharDriverState *chr = opaque; |
| 3581 |
TCPCharDriver *s = chr->opaque; |
| 3582 |
struct sockaddr_in saddr;
|
| 3583 |
#ifndef _WIN32
|
| 3584 |
struct sockaddr_un uaddr;
|
| 3585 |
#endif
|
| 3586 |
struct sockaddr *addr;
|
| 3587 |
socklen_t len; |
| 3588 |
int fd;
|
| 3589 |
|
| 3590 |
for(;;) {
|
| 3591 |
#ifndef _WIN32
|
| 3592 |
if (s->is_unix) {
|
| 3593 |
len = sizeof(uaddr);
|
| 3594 |
addr = (struct sockaddr *)&uaddr;
|
| 3595 |
} else
|
| 3596 |
#endif
|
| 3597 |
{
|
| 3598 |
len = sizeof(saddr);
|
| 3599 |
addr = (struct sockaddr *)&saddr;
|
| 3600 |
} |
| 3601 |
fd = accept(s->listen_fd, addr, &len); |
| 3602 |
if (fd < 0 && errno != EINTR) { |
| 3603 |
return;
|
| 3604 |
} else if (fd >= 0) { |
| 3605 |
if (s->do_telnetopt)
|
| 3606 |
tcp_chr_telnet_init(fd); |
| 3607 |
break;
|
| 3608 |
} |
| 3609 |
} |
| 3610 |
socket_set_nonblock(fd); |
| 3611 |
if (s->do_nodelay)
|
| 3612 |
socket_set_nodelay(fd); |
| 3613 |
s->fd = fd; |
| 3614 |
qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL); |
| 3615 |
tcp_chr_connect(chr); |
| 3616 |
} |
| 3617 |
|
| 3618 |
static void tcp_chr_close(CharDriverState *chr) |
| 3619 |
{
|
| 3620 |
TCPCharDriver *s = chr->opaque; |
| 3621 |
if (s->fd >= 0) |
| 3622 |
closesocket(s->fd); |
| 3623 |
if (s->listen_fd >= 0) |
| 3624 |
closesocket(s->listen_fd); |
| 3625 |
qemu_free(s); |
| 3626 |
} |
| 3627 |
|
| 3628 |
static CharDriverState *qemu_chr_open_tcp(const char *host_str, |
| 3629 |
int is_telnet,
|
| 3630 |
int is_unix)
|
| 3631 |
{
|
| 3632 |
CharDriverState *chr = NULL;
|
| 3633 |
TCPCharDriver *s = NULL;
|
| 3634 |
int fd = -1, ret, err, val; |
| 3635 |
int is_listen = 0; |
| 3636 |
int is_waitconnect = 1; |
| 3637 |
int do_nodelay = 0; |
| 3638 |
const char *ptr; |
| 3639 |
struct sockaddr_in saddr;
|
| 3640 |
#ifndef _WIN32
|
| 3641 |
struct sockaddr_un uaddr;
|
| 3642 |
#endif
|
| 3643 |
struct sockaddr *addr;
|
| 3644 |
socklen_t addrlen; |
| 3645 |
|
| 3646 |
#ifndef _WIN32
|
| 3647 |
if (is_unix) {
|
| 3648 |
addr = (struct sockaddr *)&uaddr;
|
| 3649 |
addrlen = sizeof(uaddr);
|
| 3650 |
if (parse_unix_path(&uaddr, host_str) < 0) |
| 3651 |
goto fail;
|
| 3652 |
} else
|
| 3653 |
#endif
|
| 3654 |
{
|
| 3655 |
addr = (struct sockaddr *)&saddr;
|
| 3656 |
addrlen = sizeof(saddr);
|
| 3657 |
if (parse_host_port(&saddr, host_str) < 0) |
| 3658 |
goto fail;
|
| 3659 |
} |
| 3660 |
|
| 3661 |
ptr = host_str; |
| 3662 |
while((ptr = strchr(ptr,','))) { |
| 3663 |
ptr++; |
| 3664 |
if (!strncmp(ptr,"server",6)) { |
| 3665 |
is_listen = 1;
|
| 3666 |
} else if (!strncmp(ptr,"nowait",6)) { |
| 3667 |
is_waitconnect = 0;
|
| 3668 |
} else if (!strncmp(ptr,"nodelay",6)) { |
| 3669 |
do_nodelay = 1;
|
| 3670 |
} else {
|
| 3671 |
printf("Unknown option: %s\n", ptr);
|
| 3672 |
goto fail;
|
| 3673 |
} |
| 3674 |
} |
| 3675 |
if (!is_listen)
|
| 3676 |
is_waitconnect = 0;
|
| 3677 |
|
| 3678 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 3679 |
if (!chr)
|
| 3680 |
goto fail;
|
| 3681 |
s = qemu_mallocz(sizeof(TCPCharDriver));
|
| 3682 |
if (!s)
|
| 3683 |
goto fail;
|
| 3684 |
|
| 3685 |
#ifndef _WIN32
|
| 3686 |
if (is_unix)
|
| 3687 |
fd = socket(PF_UNIX, SOCK_STREAM, 0);
|
| 3688 |
else
|
| 3689 |
#endif
|
| 3690 |
fd = socket(PF_INET, SOCK_STREAM, 0);
|
| 3691 |
|
| 3692 |
if (fd < 0) |
| 3693 |
goto fail;
|
| 3694 |
|
| 3695 |
if (!is_waitconnect)
|
| 3696 |
socket_set_nonblock(fd); |
| 3697 |
|
| 3698 |
s->connected = 0;
|
| 3699 |
s->fd = -1;
|
| 3700 |
s->listen_fd = -1;
|
| 3701 |
s->is_unix = is_unix; |
| 3702 |
s->do_nodelay = do_nodelay && !is_unix; |
| 3703 |
|
| 3704 |
chr->opaque = s; |
| 3705 |
chr->chr_write = tcp_chr_write; |
| 3706 |
chr->chr_close = tcp_chr_close; |
| 3707 |
|
| 3708 |
if (is_listen) {
|
| 3709 |
/* allow fast reuse */
|
| 3710 |
#ifndef _WIN32
|
| 3711 |
if (is_unix) {
|
| 3712 |
char path[109]; |
| 3713 |
pstrcpy(path, sizeof(path), uaddr.sun_path);
|
| 3714 |
unlink(path); |
| 3715 |
} else
|
| 3716 |
#endif
|
| 3717 |
{
|
| 3718 |
val = 1;
|
| 3719 |
setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val)); |
| 3720 |
} |
| 3721 |
|
| 3722 |
ret = bind(fd, addr, addrlen); |
| 3723 |
if (ret < 0) |
| 3724 |
goto fail;
|
| 3725 |
|
| 3726 |
ret = listen(fd, 0);
|
| 3727 |
if (ret < 0) |
| 3728 |
goto fail;
|
| 3729 |
|
| 3730 |
s->listen_fd = fd; |
| 3731 |
qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
|
| 3732 |
if (is_telnet)
|
| 3733 |
s->do_telnetopt = 1;
|
| 3734 |
} else {
|
| 3735 |
for(;;) {
|
| 3736 |
ret = connect(fd, addr, addrlen); |
| 3737 |
if (ret < 0) { |
| 3738 |
err = socket_error(); |
| 3739 |
if (err == EINTR || err == EWOULDBLOCK) {
|
| 3740 |
} else if (err == EINPROGRESS) { |
| 3741 |
break;
|
| 3742 |
#ifdef _WIN32
|
| 3743 |
} else if (err == WSAEALREADY) { |
| 3744 |
break;
|
| 3745 |
#endif
|
| 3746 |
} else {
|
| 3747 |
goto fail;
|
| 3748 |
} |
| 3749 |
} else {
|
| 3750 |
s->connected = 1;
|
| 3751 |
break;
|
| 3752 |
} |
| 3753 |
} |
| 3754 |
s->fd = fd; |
| 3755 |
socket_set_nodelay(fd); |
| 3756 |
if (s->connected)
|
| 3757 |
tcp_chr_connect(chr); |
| 3758 |
else
|
| 3759 |
qemu_set_fd_handler(s->fd, NULL, tcp_chr_connect, chr);
|
| 3760 |
} |
| 3761 |
|
| 3762 |
if (is_listen && is_waitconnect) {
|
| 3763 |
printf("QEMU waiting for connection on: %s\n", host_str);
|
| 3764 |
tcp_chr_accept(chr); |
| 3765 |
socket_set_nonblock(s->listen_fd); |
| 3766 |
} |
| 3767 |
|
| 3768 |
return chr;
|
| 3769 |
fail:
|
| 3770 |
if (fd >= 0) |
| 3771 |
closesocket(fd); |
| 3772 |
qemu_free(s); |
| 3773 |
qemu_free(chr); |
| 3774 |
return NULL; |
| 3775 |
} |
| 3776 |
|
| 3777 |
CharDriverState *qemu_chr_open(const char *filename) |
| 3778 |
{
|
| 3779 |
const char *p; |
| 3780 |
|
| 3781 |
if (!strcmp(filename, "vc")) { |
| 3782 |
return text_console_init(&display_state, 0); |
| 3783 |
} else if (strstart(filename, "vc:", &p)) { |
| 3784 |
return text_console_init(&display_state, p);
|
| 3785 |
} else if (!strcmp(filename, "null")) { |
| 3786 |
return qemu_chr_open_null();
|
| 3787 |
} else
|
| 3788 |
if (strstart(filename, "tcp:", &p)) { |
| 3789 |
return qemu_chr_open_tcp(p, 0, 0); |
| 3790 |
} else
|
| 3791 |
if (strstart(filename, "telnet:", &p)) { |
| 3792 |
return qemu_chr_open_tcp(p, 1, 0); |
| 3793 |
} else
|
| 3794 |
if (strstart(filename, "udp:", &p)) { |
| 3795 |
return qemu_chr_open_udp(p);
|
| 3796 |
} else
|
| 3797 |
if (strstart(filename, "mon:", &p)) { |
| 3798 |
CharDriverState *drv = qemu_chr_open(p); |
| 3799 |
if (drv) {
|
| 3800 |
drv = qemu_chr_open_mux(drv); |
| 3801 |
monitor_init(drv, !nographic); |
| 3802 |
return drv;
|
| 3803 |
} |
| 3804 |
printf("Unable to open driver: %s\n", p);
|
| 3805 |
return 0; |
| 3806 |
} else
|
| 3807 |
#ifndef _WIN32
|
| 3808 |
if (strstart(filename, "unix:", &p)) { |
| 3809 |
return qemu_chr_open_tcp(p, 0, 1); |
| 3810 |
} else if (strstart(filename, "file:", &p)) { |
| 3811 |
return qemu_chr_open_file_out(p);
|
| 3812 |
} else if (strstart(filename, "pipe:", &p)) { |
| 3813 |
return qemu_chr_open_pipe(p);
|
| 3814 |
} else if (!strcmp(filename, "pty")) { |
| 3815 |
return qemu_chr_open_pty();
|
| 3816 |
} else if (!strcmp(filename, "stdio")) { |
| 3817 |
return qemu_chr_open_stdio();
|
| 3818 |
} else
|
| 3819 |
#if defined(__linux__)
|
| 3820 |
if (strstart(filename, "/dev/parport", NULL)) { |
| 3821 |
return qemu_chr_open_pp(filename);
|
| 3822 |
} else
|
| 3823 |
#endif
|
| 3824 |
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|
| 3825 |
|| defined(__NetBSD__) || defined(__OpenBSD__) |
| 3826 |
if (strstart(filename, "/dev/", NULL)) { |
| 3827 |
return qemu_chr_open_tty(filename);
|
| 3828 |
} else
|
| 3829 |
#endif
|
| 3830 |
#else /* !_WIN32 */ |
| 3831 |
if (strstart(filename, "COM", NULL)) { |
| 3832 |
return qemu_chr_open_win(filename);
|
| 3833 |
} else
|
| 3834 |
if (strstart(filename, "pipe:", &p)) { |
| 3835 |
return qemu_chr_open_win_pipe(p);
|
| 3836 |
} else
|
| 3837 |
if (strstart(filename, "con:", NULL)) { |
| 3838 |
return qemu_chr_open_win_con(filename);
|
| 3839 |
} else
|
| 3840 |
if (strstart(filename, "file:", &p)) { |
| 3841 |
return qemu_chr_open_win_file_out(p);
|
| 3842 |
} else
|
| 3843 |
#endif
|
| 3844 |
#ifdef CONFIG_BRLAPI
|
| 3845 |
if (!strcmp(filename, "braille")) { |
| 3846 |
return chr_baum_init();
|
| 3847 |
} else
|
| 3848 |
#endif
|
| 3849 |
{
|
| 3850 |
return NULL; |
| 3851 |
} |
| 3852 |
} |
| 3853 |
|
| 3854 |
void qemu_chr_close(CharDriverState *chr)
|
| 3855 |
{
|
| 3856 |
if (chr->chr_close)
|
| 3857 |
chr->chr_close(chr); |
| 3858 |
qemu_free(chr); |
| 3859 |
} |
| 3860 |
|
| 3861 |
/***********************************************************/
|
| 3862 |
/* network device redirectors */
|
| 3863 |
|
| 3864 |
__attribute__ (( unused )) |
| 3865 |
static void hex_dump(FILE *f, const uint8_t *buf, int size) |
| 3866 |
{
|
| 3867 |
int len, i, j, c;
|
| 3868 |
|
| 3869 |
for(i=0;i<size;i+=16) { |
| 3870 |
len = size - i; |
| 3871 |
if (len > 16) |
| 3872 |
len = 16;
|
| 3873 |
fprintf(f, "%08x ", i);
|
| 3874 |
for(j=0;j<16;j++) { |
| 3875 |
if (j < len)
|
| 3876 |
fprintf(f, " %02x", buf[i+j]);
|
| 3877 |
else
|
| 3878 |
fprintf(f, " ");
|
| 3879 |
} |
| 3880 |
fprintf(f, " ");
|
| 3881 |
for(j=0;j<len;j++) { |
| 3882 |
c = buf[i+j]; |
| 3883 |
if (c < ' ' || c > '~') |
| 3884 |
c = '.';
|
| 3885 |
fprintf(f, "%c", c);
|
| 3886 |
} |
| 3887 |
fprintf(f, "\n");
|
| 3888 |
} |
| 3889 |
} |
| 3890 |
|
| 3891 |
static int parse_macaddr(uint8_t *macaddr, const char *p) |
| 3892 |
{
|
| 3893 |
int i;
|
| 3894 |
char *last_char;
|
| 3895 |
long int offset; |
| 3896 |
|
| 3897 |
errno = 0;
|
| 3898 |
offset = strtol(p, &last_char, 0);
|
| 3899 |
if (0 == errno && '\0' == *last_char && |
| 3900 |
offset >= 0 && offset <= 0xFFFFFF) { |
| 3901 |
macaddr[3] = (offset & 0xFF0000) >> 16; |
| 3902 |
macaddr[4] = (offset & 0xFF00) >> 8; |
| 3903 |
macaddr[5] = offset & 0xFF; |
| 3904 |
return 0; |
| 3905 |
} else {
|
| 3906 |
for(i = 0; i < 6; i++) { |
| 3907 |
macaddr[i] = strtol(p, (char **)&p, 16); |
| 3908 |
if (i == 5) { |
| 3909 |
if (*p != '\0') |
| 3910 |
return -1; |
| 3911 |
} else {
|
| 3912 |
if (*p != ':' && *p != '-') |
| 3913 |
return -1; |
| 3914 |
p++; |
| 3915 |
} |
| 3916 |
} |
| 3917 |
return 0; |
| 3918 |
} |
| 3919 |
|
| 3920 |
return -1; |
| 3921 |
} |
| 3922 |
|
| 3923 |
static int get_str_sep(char *buf, int buf_size, const char **pp, int sep) |
| 3924 |
{
|
| 3925 |
const char *p, *p1; |
| 3926 |
int len;
|
| 3927 |
p = *pp; |
| 3928 |
p1 = strchr(p, sep); |
| 3929 |
if (!p1)
|
| 3930 |
return -1; |
| 3931 |
len = p1 - p; |
| 3932 |
p1++; |
| 3933 |
if (buf_size > 0) { |
| 3934 |
if (len > buf_size - 1) |
| 3935 |
len = buf_size - 1;
|
| 3936 |
memcpy(buf, p, len); |
| 3937 |
buf[len] = '\0';
|
| 3938 |
} |
| 3939 |
*pp = p1; |
| 3940 |
return 0; |
| 3941 |
} |
| 3942 |
|
| 3943 |
int parse_host_src_port(struct sockaddr_in *haddr, |
| 3944 |
struct sockaddr_in *saddr,
|
| 3945 |
const char *input_str) |
| 3946 |
{
|
| 3947 |
char *str = strdup(input_str);
|
| 3948 |
char *host_str = str;
|
| 3949 |
char *src_str;
|
| 3950 |
const char *src_str2; |
| 3951 |
char *ptr;
|
| 3952 |
|
| 3953 |
/*
|
| 3954 |
* Chop off any extra arguments at the end of the string which
|
| 3955 |
* would start with a comma, then fill in the src port information
|
| 3956 |
* if it was provided else use the "any address" and "any port".
|
| 3957 |
*/
|
| 3958 |
if ((ptr = strchr(str,','))) |
| 3959 |
*ptr = '\0';
|
| 3960 |
|
| 3961 |
if ((src_str = strchr(input_str,'@'))) { |
| 3962 |
*src_str = '\0';
|
| 3963 |
src_str++; |
| 3964 |
} |
| 3965 |
|
| 3966 |
if (parse_host_port(haddr, host_str) < 0) |
| 3967 |
goto fail;
|
| 3968 |
|
| 3969 |
src_str2 = src_str; |
| 3970 |
if (!src_str || *src_str == '\0') |
| 3971 |
src_str2 = ":0";
|
| 3972 |
|
| 3973 |
if (parse_host_port(saddr, src_str2) < 0) |
| 3974 |
goto fail;
|
| 3975 |
|
| 3976 |
free(str); |
| 3977 |
return(0); |
| 3978 |
|
| 3979 |
fail:
|
| 3980 |
free(str); |
| 3981 |
return -1; |
| 3982 |
} |
| 3983 |
|
| 3984 |
int parse_host_port(struct sockaddr_in *saddr, const char *str) |
| 3985 |
{
|
| 3986 |
char buf[512]; |
| 3987 |
struct hostent *he;
|
| 3988 |
const char *p, *r; |
| 3989 |
int port;
|
| 3990 |
|
| 3991 |
p = str; |
| 3992 |
if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) |
| 3993 |
return -1; |
| 3994 |
saddr->sin_family = AF_INET; |
| 3995 |
if (buf[0] == '\0') { |
| 3996 |
saddr->sin_addr.s_addr = 0;
|
| 3997 |
} else {
|
| 3998 |
if (isdigit(buf[0])) { |
| 3999 |
if (!inet_aton(buf, &saddr->sin_addr))
|
| 4000 |
return -1; |
| 4001 |
} else {
|
| 4002 |
if ((he = gethostbyname(buf)) == NULL) |
| 4003 |
return - 1; |
| 4004 |
saddr->sin_addr = *(struct in_addr *)he->h_addr;
|
| 4005 |
} |
| 4006 |
} |
| 4007 |
port = strtol(p, (char **)&r, 0); |
| 4008 |
if (r == p)
|
| 4009 |
return -1; |
| 4010 |
saddr->sin_port = htons(port); |
| 4011 |
return 0; |
| 4012 |
} |
| 4013 |
|
| 4014 |
#ifndef _WIN32
|
| 4015 |
static int parse_unix_path(struct sockaddr_un *uaddr, const char *str) |
| 4016 |
{
|
| 4017 |
const char *p; |
| 4018 |
int len;
|
| 4019 |
|
| 4020 |
len = MIN(108, strlen(str));
|
| 4021 |
p = strchr(str, ',');
|
| 4022 |
if (p)
|
| 4023 |
len = MIN(len, p - str); |
| 4024 |
|
| 4025 |
memset(uaddr, 0, sizeof(*uaddr)); |
| 4026 |
|
| 4027 |
uaddr->sun_family = AF_UNIX; |
| 4028 |
memcpy(uaddr->sun_path, str, len); |
| 4029 |
|
| 4030 |
return 0; |
| 4031 |
} |
| 4032 |
#endif
|
| 4033 |
|
| 4034 |
/* find or alloc a new VLAN */
|
| 4035 |
VLANState *qemu_find_vlan(int id)
|
| 4036 |
{
|
| 4037 |
VLANState **pvlan, *vlan; |
| 4038 |
for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { |
| 4039 |
if (vlan->id == id)
|
| 4040 |
return vlan;
|
| 4041 |
} |
| 4042 |
vlan = qemu_mallocz(sizeof(VLANState));
|
| 4043 |
if (!vlan)
|
| 4044 |
return NULL; |
| 4045 |
vlan->id = id; |
| 4046 |
vlan->next = NULL;
|
| 4047 |
pvlan = &first_vlan; |
| 4048 |
while (*pvlan != NULL) |
| 4049 |
pvlan = &(*pvlan)->next; |
| 4050 |
*pvlan = vlan; |
| 4051 |
return vlan;
|
| 4052 |
} |
| 4053 |
|
| 4054 |
VLANClientState *qemu_new_vlan_client(VLANState *vlan, |
| 4055 |
IOReadHandler *fd_read, |
| 4056 |
IOCanRWHandler *fd_can_read, |
| 4057 |
void *opaque)
|
| 4058 |
{
|
| 4059 |
VLANClientState *vc, **pvc; |
| 4060 |
vc = qemu_mallocz(sizeof(VLANClientState));
|
| 4061 |
if (!vc)
|
| 4062 |
return NULL; |
| 4063 |
vc->fd_read = fd_read; |
| 4064 |
vc->fd_can_read = fd_can_read; |
| 4065 |
vc->opaque = opaque; |
| 4066 |
vc->vlan = vlan; |
| 4067 |
|
| 4068 |
vc->next = NULL;
|
| 4069 |
pvc = &vlan->first_client; |
| 4070 |
while (*pvc != NULL) |
| 4071 |
pvc = &(*pvc)->next; |
| 4072 |
*pvc = vc; |
| 4073 |
return vc;
|
| 4074 |
} |
| 4075 |
|
| 4076 |
void qemu_del_vlan_client(VLANClientState *vc)
|
| 4077 |
{
|
| 4078 |
VLANClientState **pvc = &vc->vlan->first_client; |
| 4079 |
|
| 4080 |
while (*pvc != NULL) |
| 4081 |
if (*pvc == vc) {
|
| 4082 |
*pvc = vc->next; |
| 4083 |
free(vc); |
| 4084 |
break;
|
| 4085 |
} else
|
| 4086 |
pvc = &(*pvc)->next; |
| 4087 |
} |
| 4088 |
|
| 4089 |
int qemu_can_send_packet(VLANClientState *vc1)
|
| 4090 |
{
|
| 4091 |
VLANState *vlan = vc1->vlan; |
| 4092 |
VLANClientState *vc; |
| 4093 |
|
| 4094 |
for(vc = vlan->first_client; vc != NULL; vc = vc->next) { |
| 4095 |
if (vc != vc1) {
|
| 4096 |
if (vc->fd_can_read && vc->fd_can_read(vc->opaque))
|
| 4097 |
return 1; |
| 4098 |
} |
| 4099 |
} |
| 4100 |
return 0; |
| 4101 |
} |
| 4102 |
|
| 4103 |
void qemu_send_packet(VLANClientState *vc1, const uint8_t *buf, int size) |
| 4104 |
{
|
| 4105 |
VLANState *vlan = vc1->vlan; |
| 4106 |
VLANClientState *vc; |
| 4107 |
|
| 4108 |
#if 0
|
| 4109 |
printf("vlan %d send:\n", vlan->id);
|
| 4110 |
hex_dump(stdout, buf, size);
|
| 4111 |
#endif
|
| 4112 |
for(vc = vlan->first_client; vc != NULL; vc = vc->next) { |
| 4113 |
if (vc != vc1) {
|
| 4114 |
vc->fd_read(vc->opaque, buf, size); |
| 4115 |
} |
| 4116 |
} |
| 4117 |
} |
| 4118 |
|
| 4119 |
#if defined(CONFIG_SLIRP)
|
| 4120 |
|
| 4121 |
/* slirp network adapter */
|
| 4122 |
|
| 4123 |
static int slirp_inited; |
| 4124 |
static VLANClientState *slirp_vc;
|
| 4125 |
|
| 4126 |
int slirp_can_output(void) |
| 4127 |
{
|
| 4128 |
return !slirp_vc || qemu_can_send_packet(slirp_vc);
|
| 4129 |
} |
| 4130 |
|
| 4131 |
void slirp_output(const uint8_t *pkt, int pkt_len) |
| 4132 |
{
|
| 4133 |
#if 0
|
| 4134 |
printf("slirp output:\n");
|
| 4135 |
hex_dump(stdout, pkt, pkt_len);
|
| 4136 |
#endif
|
| 4137 |
if (!slirp_vc)
|
| 4138 |
return;
|
| 4139 |
qemu_send_packet(slirp_vc, pkt, pkt_len); |
| 4140 |
} |
| 4141 |
|
| 4142 |
static void slirp_receive(void *opaque, const uint8_t *buf, int size) |
| 4143 |
{
|
| 4144 |
#if 0
|
| 4145 |
printf("slirp input:\n");
|
| 4146 |
hex_dump(stdout, buf, size);
|
| 4147 |
#endif
|
| 4148 |
slirp_input(buf, size); |
| 4149 |
} |
| 4150 |
|
| 4151 |
static int net_slirp_init(VLANState *vlan) |
| 4152 |
{
|
| 4153 |
if (!slirp_inited) {
|
| 4154 |
slirp_inited = 1;
|
| 4155 |
slirp_init(); |
| 4156 |
} |
| 4157 |
slirp_vc = qemu_new_vlan_client(vlan, |
| 4158 |
slirp_receive, NULL, NULL); |
| 4159 |
snprintf(slirp_vc->info_str, sizeof(slirp_vc->info_str), "user redirector"); |
| 4160 |
return 0; |
| 4161 |
} |
| 4162 |
|
| 4163 |
static void net_slirp_redir(const char *redir_str) |
| 4164 |
{
|
| 4165 |
int is_udp;
|
| 4166 |
char buf[256], *r; |
| 4167 |
const char *p; |
| 4168 |
struct in_addr guest_addr;
|
| 4169 |
int host_port, guest_port;
|
| 4170 |
|
| 4171 |
if (!slirp_inited) {
|
| 4172 |
slirp_inited = 1;
|
| 4173 |
slirp_init(); |
| 4174 |
} |
| 4175 |
|
| 4176 |
p = redir_str; |
| 4177 |
if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) |
| 4178 |
goto fail;
|
| 4179 |
if (!strcmp(buf, "tcp")) { |
| 4180 |
is_udp = 0;
|
| 4181 |
} else if (!strcmp(buf, "udp")) { |
| 4182 |
is_udp = 1;
|
| 4183 |
} else {
|
| 4184 |
goto fail;
|
| 4185 |
} |
| 4186 |
|
| 4187 |
if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) |
| 4188 |
goto fail;
|
| 4189 |
host_port = strtol(buf, &r, 0);
|
| 4190 |
if (r == buf)
|
| 4191 |
goto fail;
|
| 4192 |
|
| 4193 |
if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) |
| 4194 |
goto fail;
|
| 4195 |
if (buf[0] == '\0') { |
| 4196 |
pstrcpy(buf, sizeof(buf), "10.0.2.15"); |
| 4197 |
} |
| 4198 |
if (!inet_aton(buf, &guest_addr))
|
| 4199 |
goto fail;
|
| 4200 |
|
| 4201 |
guest_port = strtol(p, &r, 0);
|
| 4202 |
if (r == p)
|
| 4203 |
goto fail;
|
| 4204 |
|
| 4205 |
if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) { |
| 4206 |
fprintf(stderr, "qemu: could not set up redirection\n");
|
| 4207 |
exit(1);
|
| 4208 |
} |
| 4209 |
return;
|
| 4210 |
fail:
|
| 4211 |
fprintf(stderr, "qemu: syntax: -redir [tcp|udp]:host-port:[guest-host]:guest-port\n");
|
| 4212 |
exit(1);
|
| 4213 |
} |
| 4214 |
|
| 4215 |
#ifndef _WIN32
|
| 4216 |
|
| 4217 |
char smb_dir[1024]; |
| 4218 |
|
| 4219 |
static void erase_dir(char *dir_name) |
| 4220 |
{
|
| 4221 |
DIR *d; |
| 4222 |
struct dirent *de;
|
| 4223 |
char filename[1024]; |
| 4224 |
|
| 4225 |
/* erase all the files in the directory */
|
| 4226 |
if ((d = opendir(dir_name)) != 0) { |
| 4227 |
for(;;) {
|
| 4228 |
de = readdir(d); |
| 4229 |
if (!de)
|
| 4230 |
break;
|
| 4231 |
if (strcmp(de->d_name, ".") != 0 && |
| 4232 |
strcmp(de->d_name, "..") != 0) { |
| 4233 |
snprintf(filename, sizeof(filename), "%s/%s", |
| 4234 |
smb_dir, de->d_name); |
| 4235 |
if (unlink(filename) != 0) /* is it a directory? */ |
| 4236 |
erase_dir(filename); |
| 4237 |
} |
| 4238 |
} |
| 4239 |
closedir(d); |
| 4240 |
rmdir(dir_name); |
| 4241 |
} |
| 4242 |
} |
| 4243 |
|
| 4244 |
/* automatic user mode samba server configuration */
|
| 4245 |
static void smb_exit(void) |
| 4246 |
{
|
| 4247 |
erase_dir(smb_dir); |
| 4248 |
} |
| 4249 |
|
| 4250 |
/* automatic user mode samba server configuration */
|
| 4251 |
static void net_slirp_smb(const char *exported_dir) |
| 4252 |
{
|
| 4253 |
char smb_conf[1024]; |
| 4254 |
char smb_cmdline[1024]; |
| 4255 |
FILE *f; |
| 4256 |
|
| 4257 |
if (!slirp_inited) {
|
| 4258 |
slirp_inited = 1;
|
| 4259 |
slirp_init(); |
| 4260 |
} |
| 4261 |
|
| 4262 |
/* XXX: better tmp dir construction */
|
| 4263 |
snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%d", getpid()); |
| 4264 |
if (mkdir(smb_dir, 0700) < 0) { |
| 4265 |
fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
|
| 4266 |
exit(1);
|
| 4267 |
} |
| 4268 |
snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf"); |
| 4269 |
|
| 4270 |
f = fopen(smb_conf, "w");
|
| 4271 |
if (!f) {
|
| 4272 |
fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf);
|
| 4273 |
exit(1);
|
| 4274 |
} |
| 4275 |
fprintf(f, |
| 4276 |
"[global]\n"
|
| 4277 |
"private dir=%s\n"
|
| 4278 |
"smb ports=0\n"
|
| 4279 |
"socket address=127.0.0.1\n"
|
| 4280 |
"pid directory=%s\n"
|
| 4281 |
"lock directory=%s\n"
|
| 4282 |
"log file=%s/log.smbd\n"
|
| 4283 |
"smb passwd file=%s/smbpasswd\n"
|
| 4284 |
"security = share\n"
|
| 4285 |
"[qemu]\n"
|
| 4286 |
"path=%s\n"
|
| 4287 |
"read only=no\n"
|
| 4288 |
"guest ok=yes\n",
|
| 4289 |
smb_dir, |
| 4290 |
smb_dir, |
| 4291 |
smb_dir, |
| 4292 |
smb_dir, |
| 4293 |
smb_dir, |
| 4294 |
exported_dir |
| 4295 |
); |
| 4296 |
fclose(f); |
| 4297 |
atexit(smb_exit); |
| 4298 |
|
| 4299 |
snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s", |
| 4300 |
SMBD_COMMAND, smb_conf); |
| 4301 |
|
| 4302 |
slirp_add_exec(0, smb_cmdline, 4, 139); |
| 4303 |
} |
| 4304 |
|
| 4305 |
#endif /* !defined(_WIN32) */ |
| 4306 |
void do_info_slirp(void) |
| 4307 |
{
|
| 4308 |
slirp_stats(); |
| 4309 |
} |
| 4310 |
|
| 4311 |
#endif /* CONFIG_SLIRP */ |
| 4312 |
|
| 4313 |
#if !defined(_WIN32)
|
| 4314 |
|
| 4315 |
typedef struct TAPState { |
| 4316 |
VLANClientState *vc; |
| 4317 |
int fd;
|
| 4318 |
char down_script[1024]; |
| 4319 |
} TAPState; |
| 4320 |
|
| 4321 |
static void tap_receive(void *opaque, const uint8_t *buf, int size) |
| 4322 |
{
|
| 4323 |
TAPState *s = opaque; |
| 4324 |
int ret;
|
| 4325 |
for(;;) {
|
| 4326 |
ret = write(s->fd, buf, size); |
| 4327 |
if (ret < 0 && (errno == EINTR || errno == EAGAIN)) { |
| 4328 |
} else {
|
| 4329 |
break;
|
| 4330 |
} |
| 4331 |
} |
| 4332 |
} |
| 4333 |
|
| 4334 |
static void tap_send(void *opaque) |
| 4335 |
{
|
| 4336 |
TAPState *s = opaque; |
| 4337 |
uint8_t buf[4096];
|
| 4338 |
int size;
|
| 4339 |
|
| 4340 |
#ifdef __sun__
|
| 4341 |
struct strbuf sbuf;
|
| 4342 |
int f = 0; |
| 4343 |
sbuf.maxlen = sizeof(buf);
|
| 4344 |
sbuf.buf = buf; |
| 4345 |
size = getmsg(s->fd, NULL, &sbuf, &f) >=0 ? sbuf.len : -1; |
| 4346 |
#else
|
| 4347 |
size = read(s->fd, buf, sizeof(buf));
|
| 4348 |
#endif
|
| 4349 |
if (size > 0) { |
| 4350 |
qemu_send_packet(s->vc, buf, size); |
| 4351 |
} |
| 4352 |
} |
| 4353 |
|
| 4354 |
/* fd support */
|
| 4355 |
|
| 4356 |
static TAPState *net_tap_fd_init(VLANState *vlan, int fd) |
| 4357 |
{
|
| 4358 |
TAPState *s; |
| 4359 |
|
| 4360 |
s = qemu_mallocz(sizeof(TAPState));
|
| 4361 |
if (!s)
|
| 4362 |
return NULL; |
| 4363 |
s->fd = fd; |
| 4364 |
s->vc = qemu_new_vlan_client(vlan, tap_receive, NULL, s);
|
| 4365 |
qemu_set_fd_handler(s->fd, tap_send, NULL, s);
|
| 4366 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str), "tap: fd=%d", fd); |
| 4367 |
return s;
|
| 4368 |
} |
| 4369 |
|
| 4370 |
#if defined (_BSD) || defined (__FreeBSD_kernel__)
|
| 4371 |
static int tap_open(char *ifname, int ifname_size) |
| 4372 |
{
|
| 4373 |
int fd;
|
| 4374 |
char *dev;
|
| 4375 |
struct stat s;
|
| 4376 |
|
| 4377 |
TFR(fd = open("/dev/tap", O_RDWR));
|
| 4378 |
if (fd < 0) { |
| 4379 |
fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
|
| 4380 |
return -1; |
| 4381 |
} |
| 4382 |
|
| 4383 |
fstat(fd, &s); |
| 4384 |
dev = devname(s.st_rdev, S_IFCHR); |
| 4385 |
pstrcpy(ifname, ifname_size, dev); |
| 4386 |
|
| 4387 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
| 4388 |
return fd;
|
| 4389 |
} |
| 4390 |
#elif defined(__sun__)
|
| 4391 |
#define TUNNEWPPA (('T'<<16) | 0x0001) |
| 4392 |
/*
|
| 4393 |
* Allocate TAP device, returns opened fd.
|
| 4394 |
* Stores dev name in the first arg(must be large enough).
|
| 4395 |
*/
|
| 4396 |
int tap_alloc(char *dev, size_t dev_size) |
| 4397 |
{
|
| 4398 |
int tap_fd, if_fd, ppa = -1; |
| 4399 |
static int ip_fd = 0; |
| 4400 |
char *ptr;
|
| 4401 |
|
| 4402 |
static int arp_fd = 0; |
| 4403 |
int ip_muxid, arp_muxid;
|
| 4404 |
struct strioctl strioc_if, strioc_ppa;
|
| 4405 |
int link_type = I_PLINK;;
|
| 4406 |
struct lifreq ifr;
|
| 4407 |
char actual_name[32] = ""; |
| 4408 |
|
| 4409 |
memset(&ifr, 0x0, sizeof(ifr)); |
| 4410 |
|
| 4411 |
if( *dev ){
|
| 4412 |
ptr = dev; |
| 4413 |
while( *ptr && !isdigit((int)*ptr) ) ptr++; |
| 4414 |
ppa = atoi(ptr); |
| 4415 |
} |
| 4416 |
|
| 4417 |
/* Check if IP device was opened */
|
| 4418 |
if( ip_fd )
|
| 4419 |
close(ip_fd); |
| 4420 |
|
| 4421 |
TFR(ip_fd = open("/dev/udp", O_RDWR, 0)); |
| 4422 |
if (ip_fd < 0) { |
| 4423 |
syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
|
| 4424 |
return -1; |
| 4425 |
} |
| 4426 |
|
| 4427 |
TFR(tap_fd = open("/dev/tap", O_RDWR, 0)); |
| 4428 |
if (tap_fd < 0) { |
| 4429 |
syslog(LOG_ERR, "Can't open /dev/tap");
|
| 4430 |
return -1; |
| 4431 |
} |
| 4432 |
|
| 4433 |
/* Assign a new PPA and get its unit number. */
|
| 4434 |
strioc_ppa.ic_cmd = TUNNEWPPA; |
| 4435 |
strioc_ppa.ic_timout = 0;
|
| 4436 |
strioc_ppa.ic_len = sizeof(ppa);
|
| 4437 |
strioc_ppa.ic_dp = (char *)&ppa;
|
| 4438 |
if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0) |
| 4439 |
syslog (LOG_ERR, "Can't assign new interface");
|
| 4440 |
|
| 4441 |
TFR(if_fd = open("/dev/tap", O_RDWR, 0)); |
| 4442 |
if (if_fd < 0) { |
| 4443 |
syslog(LOG_ERR, "Can't open /dev/tap (2)");
|
| 4444 |
return -1; |
| 4445 |
} |
| 4446 |
if(ioctl(if_fd, I_PUSH, "ip") < 0){ |
| 4447 |
syslog(LOG_ERR, "Can't push IP module");
|
| 4448 |
return -1; |
| 4449 |
} |
| 4450 |
|
| 4451 |
if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0) |
| 4452 |
syslog(LOG_ERR, "Can't get flags\n");
|
| 4453 |
|
| 4454 |
snprintf (actual_name, 32, "tap%d", ppa); |
| 4455 |
strncpy (ifr.lifr_name, actual_name, sizeof (ifr.lifr_name));
|
| 4456 |
|
| 4457 |
ifr.lifr_ppa = ppa; |
| 4458 |
/* Assign ppa according to the unit number returned by tun device */
|
| 4459 |
|
| 4460 |
if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0) |
| 4461 |
syslog (LOG_ERR, "Can't set PPA %d", ppa);
|
| 4462 |
if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0) |
| 4463 |
syslog (LOG_ERR, "Can't get flags\n");
|
| 4464 |
/* Push arp module to if_fd */
|
| 4465 |
if (ioctl (if_fd, I_PUSH, "arp") < 0) |
| 4466 |
syslog (LOG_ERR, "Can't push ARP module (2)");
|
| 4467 |
|
| 4468 |
/* Push arp module to ip_fd */
|
| 4469 |
if (ioctl (ip_fd, I_POP, NULL) < 0) |
| 4470 |
syslog (LOG_ERR, "I_POP failed\n");
|
| 4471 |
if (ioctl (ip_fd, I_PUSH, "arp") < 0) |
| 4472 |
syslog (LOG_ERR, "Can't push ARP module (3)\n");
|
| 4473 |
/* Open arp_fd */
|
| 4474 |
TFR(arp_fd = open ("/dev/tap", O_RDWR, 0)); |
| 4475 |
if (arp_fd < 0) |
| 4476 |
syslog (LOG_ERR, "Can't open %s\n", "/dev/tap"); |
| 4477 |
|
| 4478 |
/* Set ifname to arp */
|
| 4479 |
strioc_if.ic_cmd = SIOCSLIFNAME; |
| 4480 |
strioc_if.ic_timout = 0;
|
| 4481 |
strioc_if.ic_len = sizeof(ifr);
|
| 4482 |
strioc_if.ic_dp = (char *)𝔦
|
| 4483 |
if (ioctl(arp_fd, I_STR, &strioc_if) < 0){ |
| 4484 |
syslog (LOG_ERR, "Can't set ifname to arp\n");
|
| 4485 |
} |
| 4486 |
|
| 4487 |
if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){ |
| 4488 |
syslog(LOG_ERR, "Can't link TAP device to IP");
|
| 4489 |
return -1; |
| 4490 |
} |
| 4491 |
|
| 4492 |
if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0) |
| 4493 |
syslog (LOG_ERR, "Can't link TAP device to ARP");
|
| 4494 |
|
| 4495 |
close (if_fd); |
| 4496 |
|
| 4497 |
memset(&ifr, 0x0, sizeof(ifr)); |
| 4498 |
strncpy (ifr.lifr_name, actual_name, sizeof (ifr.lifr_name));
|
| 4499 |
ifr.lifr_ip_muxid = ip_muxid; |
| 4500 |
ifr.lifr_arp_muxid = arp_muxid; |
| 4501 |
|
| 4502 |
if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0) |
| 4503 |
{
|
| 4504 |
ioctl (ip_fd, I_PUNLINK , arp_muxid); |
| 4505 |
ioctl (ip_fd, I_PUNLINK, ip_muxid); |
| 4506 |
syslog (LOG_ERR, "Can't set multiplexor id");
|
| 4507 |
} |
| 4508 |
|
| 4509 |
snprintf(dev, dev_size, "tap%d", ppa);
|
| 4510 |
return tap_fd;
|
| 4511 |
} |
| 4512 |
|
| 4513 |
static int tap_open(char *ifname, int ifname_size) |
| 4514 |
{
|
| 4515 |
char dev[10]=""; |
| 4516 |
int fd;
|
| 4517 |
if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){ |
| 4518 |
fprintf(stderr, "Cannot allocate TAP device\n");
|
| 4519 |
return -1; |
| 4520 |
} |
| 4521 |
pstrcpy(ifname, ifname_size, dev); |
| 4522 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
| 4523 |
return fd;
|
| 4524 |
} |
| 4525 |
#else
|
| 4526 |
static int tap_open(char *ifname, int ifname_size) |
| 4527 |
{
|
| 4528 |
struct ifreq ifr;
|
| 4529 |
int fd, ret;
|
| 4530 |
|
| 4531 |
TFR(fd = open("/dev/net/tun", O_RDWR));
|
| 4532 |
if (fd < 0) { |
| 4533 |
fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
|
| 4534 |
return -1; |
| 4535 |
} |
| 4536 |
memset(&ifr, 0, sizeof(ifr)); |
| 4537 |
ifr.ifr_flags = IFF_TAP | IFF_NO_PI; |
| 4538 |
if (ifname[0] != '\0') |
| 4539 |
pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname); |
| 4540 |
else
|
| 4541 |
pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
|
| 4542 |
ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
|
| 4543 |
if (ret != 0) { |
| 4544 |
fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
|
| 4545 |
close(fd); |
| 4546 |
return -1; |
| 4547 |
} |
| 4548 |
pstrcpy(ifname, ifname_size, ifr.ifr_name); |
| 4549 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
| 4550 |
return fd;
|
| 4551 |
} |
| 4552 |
#endif
|
| 4553 |
|
| 4554 |
static int launch_script(const char *setup_script, const char *ifname, int fd) |
| 4555 |
{
|
| 4556 |
int pid, status;
|
| 4557 |
char *args[3]; |
| 4558 |
char **parg;
|
| 4559 |
|
| 4560 |
/* try to launch network script */
|
| 4561 |
pid = fork(); |
| 4562 |
if (pid >= 0) { |
| 4563 |
if (pid == 0) { |
| 4564 |
int open_max = sysconf (_SC_OPEN_MAX), i;
|
| 4565 |
for (i = 0; i < open_max; i++) |
| 4566 |
if (i != STDIN_FILENO &&
|
| 4567 |
i != STDOUT_FILENO && |
| 4568 |
i != STDERR_FILENO && |
| 4569 |
i != fd) |
| 4570 |
close(i); |
| 4571 |
|
| 4572 |
parg = args; |
| 4573 |
*parg++ = (char *)setup_script;
|
| 4574 |
*parg++ = (char *)ifname;
|
| 4575 |
*parg++ = NULL;
|
| 4576 |
execv(setup_script, args); |
| 4577 |
_exit(1);
|
| 4578 |
} |
| 4579 |
while (waitpid(pid, &status, 0) != pid); |
| 4580 |
if (!WIFEXITED(status) ||
|
| 4581 |
WEXITSTATUS(status) != 0) {
|
| 4582 |
fprintf(stderr, "%s: could not launch network script\n",
|
| 4583 |
setup_script); |
| 4584 |
return -1; |
| 4585 |
} |
| 4586 |
} |
| 4587 |
return 0; |
| 4588 |
} |
| 4589 |
|
| 4590 |
static int net_tap_init(VLANState *vlan, const char *ifname1, |
| 4591 |
const char *setup_script, const char *down_script) |
| 4592 |
{
|
| 4593 |
TAPState *s; |
| 4594 |
int fd;
|
| 4595 |
char ifname[128]; |
| 4596 |
|
| 4597 |
if (ifname1 != NULL) |
| 4598 |
pstrcpy(ifname, sizeof(ifname), ifname1);
|
| 4599 |
else
|
| 4600 |
ifname[0] = '\0'; |
| 4601 |
TFR(fd = tap_open(ifname, sizeof(ifname)));
|
| 4602 |
if (fd < 0) |
| 4603 |
return -1; |
| 4604 |
|
| 4605 |
if (!setup_script || !strcmp(setup_script, "no")) |
| 4606 |
setup_script = "";
|
| 4607 |
if (setup_script[0] != '\0') { |
| 4608 |
if (launch_script(setup_script, ifname, fd))
|
| 4609 |
return -1; |
| 4610 |
} |
| 4611 |
s = net_tap_fd_init(vlan, fd); |
| 4612 |
if (!s)
|
| 4613 |
return -1; |
| 4614 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
| 4615 |
"tap: ifname=%s setup_script=%s", ifname, setup_script);
|
| 4616 |
if (down_script && strcmp(down_script, "no")) |
| 4617 |
snprintf(s->down_script, sizeof(s->down_script), "%s", down_script); |
| 4618 |
return 0; |
| 4619 |
} |
| 4620 |
|
| 4621 |
#endif /* !_WIN32 */ |
| 4622 |
|
| 4623 |
#if defined(CONFIG_VDE)
|
| 4624 |
typedef struct VDEState { |
| 4625 |
VLANClientState *vc; |
| 4626 |
VDECONN *vde; |
| 4627 |
} VDEState; |
| 4628 |
|
| 4629 |
static void vde_to_qemu(void *opaque) |
| 4630 |
{
|
| 4631 |
VDEState *s = opaque; |
| 4632 |
uint8_t buf[4096];
|
| 4633 |
int size;
|
| 4634 |
|
| 4635 |
size = vde_recv(s->vde, buf, sizeof(buf), 0); |
| 4636 |
if (size > 0) { |
| 4637 |
qemu_send_packet(s->vc, buf, size); |
| 4638 |
} |
| 4639 |
} |
| 4640 |
|
| 4641 |
static void vde_from_qemu(void *opaque, const uint8_t *buf, int size) |
| 4642 |
{
|
| 4643 |
VDEState *s = opaque; |
| 4644 |
int ret;
|
| 4645 |
for(;;) {
|
| 4646 |
ret = vde_send(s->vde, buf, size, 0);
|
| 4647 |
if (ret < 0 && errno == EINTR) { |
| 4648 |
} else {
|
| 4649 |
break;
|
| 4650 |
} |
| 4651 |
} |
| 4652 |
} |
| 4653 |
|
| 4654 |
static int net_vde_init(VLANState *vlan, const char *sock, int port, |
| 4655 |
const char *group, int mode) |
| 4656 |
{
|
| 4657 |
VDEState *s; |
| 4658 |
char *init_group = strlen(group) ? (char *)group : NULL; |
| 4659 |
char *init_sock = strlen(sock) ? (char *)sock : NULL; |
| 4660 |
|
| 4661 |
struct vde_open_args args = {
|
| 4662 |
.port = port, |
| 4663 |
.group = init_group, |
| 4664 |
.mode = mode, |
| 4665 |
}; |
| 4666 |
|
| 4667 |
s = qemu_mallocz(sizeof(VDEState));
|
| 4668 |
if (!s)
|
| 4669 |
return -1; |
| 4670 |
s->vde = vde_open(init_sock, "QEMU", &args);
|
| 4671 |
if (!s->vde){
|
| 4672 |
free(s); |
| 4673 |
return -1; |
| 4674 |
} |
| 4675 |
s->vc = qemu_new_vlan_client(vlan, vde_from_qemu, NULL, s);
|
| 4676 |
qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
|
| 4677 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str), "vde: sock=%s fd=%d", |
| 4678 |
sock, vde_datafd(s->vde)); |
| 4679 |
return 0; |
| 4680 |
} |
| 4681 |
#endif
|
| 4682 |
|
| 4683 |
/* network connection */
|
| 4684 |
typedef struct NetSocketState { |
| 4685 |
VLANClientState *vc; |
| 4686 |
int fd;
|
| 4687 |
int state; /* 0 = getting length, 1 = getting data */ |
| 4688 |
int index;
|
| 4689 |
int packet_len;
|
| 4690 |
uint8_t buf[4096];
|
| 4691 |
struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */ |
| 4692 |
} NetSocketState; |
| 4693 |
|
| 4694 |
typedef struct NetSocketListenState { |
| 4695 |
VLANState *vlan; |
| 4696 |
int fd;
|
| 4697 |
} NetSocketListenState; |
| 4698 |
|
| 4699 |
/* XXX: we consider we can send the whole packet without blocking */
|
| 4700 |
static void net_socket_receive(void *opaque, const uint8_t *buf, int size) |
| 4701 |
{
|
| 4702 |
NetSocketState *s = opaque; |
| 4703 |
uint32_t len; |
| 4704 |
len = htonl(size); |
| 4705 |
|
| 4706 |
send_all(s->fd, (const uint8_t *)&len, sizeof(len)); |
| 4707 |
send_all(s->fd, buf, size); |
| 4708 |
} |
| 4709 |
|
| 4710 |
static void net_socket_receive_dgram(void *opaque, const uint8_t *buf, int size) |
| 4711 |
{
|
| 4712 |
NetSocketState *s = opaque; |
| 4713 |
sendto(s->fd, buf, size, 0,
|
| 4714 |
(struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst)); |
| 4715 |
} |
| 4716 |
|
| 4717 |
static void net_socket_send(void *opaque) |
| 4718 |
{
|
| 4719 |
NetSocketState *s = opaque; |
| 4720 |
int l, size, err;
|
| 4721 |
uint8_t buf1[4096];
|
| 4722 |
const uint8_t *buf;
|
| 4723 |
|
| 4724 |
size = recv(s->fd, buf1, sizeof(buf1), 0); |
| 4725 |
if (size < 0) { |
| 4726 |
err = socket_error(); |
| 4727 |
if (err != EWOULDBLOCK)
|
| 4728 |
goto eoc;
|
| 4729 |
} else if (size == 0) { |
| 4730 |
/* end of connection */
|
| 4731 |
eoc:
|
| 4732 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
| 4733 |
closesocket(s->fd); |
| 4734 |
return;
|
| 4735 |
} |
| 4736 |
buf = buf1; |
| 4737 |
while (size > 0) { |
| 4738 |
/* reassemble a packet from the network */
|
| 4739 |
switch(s->state) {
|
| 4740 |
case 0: |
| 4741 |
l = 4 - s->index;
|
| 4742 |
if (l > size)
|
| 4743 |
l = size; |
| 4744 |
memcpy(s->buf + s->index, buf, l); |
| 4745 |
buf += l; |
| 4746 |
size -= l; |
| 4747 |
s->index += l; |
| 4748 |
if (s->index == 4) { |
| 4749 |
/* got length */
|
| 4750 |
s->packet_len = ntohl(*(uint32_t *)s->buf); |
| 4751 |
s->index = 0;
|
| 4752 |
s->state = 1;
|
| 4753 |
} |
| 4754 |
break;
|
| 4755 |
case 1: |
| 4756 |
l = s->packet_len - s->index; |
| 4757 |
if (l > size)
|
| 4758 |
l = size; |
| 4759 |
memcpy(s->buf + s->index, buf, l); |
| 4760 |
s->index += l; |
| 4761 |
buf += l; |
| 4762 |
size -= l; |
| 4763 |
if (s->index >= s->packet_len) {
|
| 4764 |
qemu_send_packet(s->vc, s->buf, s->packet_len); |
| 4765 |
s->index = 0;
|
| 4766 |
s->state = 0;
|
| 4767 |
} |
| 4768 |
break;
|
| 4769 |
} |
| 4770 |
} |
| 4771 |
} |
| 4772 |
|
| 4773 |
static void net_socket_send_dgram(void *opaque) |
| 4774 |
{
|
| 4775 |
NetSocketState *s = opaque; |
| 4776 |
int size;
|
| 4777 |
|
| 4778 |
size = recv(s->fd, s->buf, sizeof(s->buf), 0); |
| 4779 |
if (size < 0) |
| 4780 |
return;
|
| 4781 |
if (size == 0) { |
| 4782 |
/* end of connection */
|
| 4783 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
| 4784 |
return;
|
| 4785 |
} |
| 4786 |
qemu_send_packet(s->vc, s->buf, size); |
| 4787 |
} |
| 4788 |
|
| 4789 |
static int net_socket_mcast_create(struct sockaddr_in *mcastaddr) |
| 4790 |
{
|
| 4791 |
struct ip_mreq imr;
|
| 4792 |
int fd;
|
| 4793 |
int val, ret;
|
| 4794 |
if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
|
| 4795 |
fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
|
| 4796 |
inet_ntoa(mcastaddr->sin_addr), |
| 4797 |
(int)ntohl(mcastaddr->sin_addr.s_addr));
|
| 4798 |
return -1; |
| 4799 |
|
| 4800 |
} |
| 4801 |
fd = socket(PF_INET, SOCK_DGRAM, 0);
|
| 4802 |
if (fd < 0) { |
| 4803 |
perror("socket(PF_INET, SOCK_DGRAM)");
|
| 4804 |
return -1; |
| 4805 |
} |
| 4806 |
|
| 4807 |
val = 1;
|
| 4808 |
ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, |
| 4809 |
(const char *)&val, sizeof(val)); |
| 4810 |
if (ret < 0) { |
| 4811 |
perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
|
| 4812 |
goto fail;
|
| 4813 |
} |
| 4814 |
|
| 4815 |
ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr)); |
| 4816 |
if (ret < 0) { |
| 4817 |
perror("bind");
|
| 4818 |
goto fail;
|
| 4819 |
} |
| 4820 |
|
| 4821 |
/* Add host to multicast group */
|
| 4822 |
imr.imr_multiaddr = mcastaddr->sin_addr; |
| 4823 |
imr.imr_interface.s_addr = htonl(INADDR_ANY); |
| 4824 |
|
| 4825 |
ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, |
| 4826 |
(const char *)&imr, sizeof(struct ip_mreq)); |
| 4827 |
if (ret < 0) { |
| 4828 |
perror("setsockopt(IP_ADD_MEMBERSHIP)");
|
| 4829 |
goto fail;
|
| 4830 |
} |
| 4831 |
|
| 4832 |
/* Force mcast msgs to loopback (eg. several QEMUs in same host */
|
| 4833 |
val = 1;
|
| 4834 |
ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP, |
| 4835 |
(const char *)&val, sizeof(val)); |
| 4836 |
if (ret < 0) { |
| 4837 |
perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
|
| 4838 |
goto fail;
|
| 4839 |
} |
| 4840 |
|
| 4841 |
socket_set_nonblock(fd); |
| 4842 |
return fd;
|
| 4843 |
fail:
|
| 4844 |
if (fd >= 0) |
| 4845 |
closesocket(fd); |
| 4846 |
return -1; |
| 4847 |
} |
| 4848 |
|
| 4849 |
static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan, int fd, |
| 4850 |
int is_connected)
|
| 4851 |
{
|
| 4852 |
struct sockaddr_in saddr;
|
| 4853 |
int newfd;
|
| 4854 |
socklen_t saddr_len; |
| 4855 |
NetSocketState *s; |
| 4856 |
|
| 4857 |
/* fd passed: multicast: "learn" dgram_dst address from bound address and save it
|
| 4858 |
* Because this may be "shared" socket from a "master" process, datagrams would be recv()
|
| 4859 |
* by ONLY ONE process: we must "clone" this dgram socket --jjo
|
| 4860 |
*/
|
| 4861 |
|
| 4862 |
if (is_connected) {
|
| 4863 |
if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) { |
| 4864 |
/* must be bound */
|
| 4865 |
if (saddr.sin_addr.s_addr==0) { |
| 4866 |
fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
|
| 4867 |
fd); |
| 4868 |
return NULL; |
| 4869 |
} |
| 4870 |
/* clone dgram socket */
|
| 4871 |
newfd = net_socket_mcast_create(&saddr); |
| 4872 |
if (newfd < 0) { |
| 4873 |
/* error already reported by net_socket_mcast_create() */
|
| 4874 |
close(fd); |
| 4875 |
return NULL; |
| 4876 |
} |
| 4877 |
/* clone newfd to fd, close newfd */
|
| 4878 |
dup2(newfd, fd); |
| 4879 |
close(newfd); |
| 4880 |
|
| 4881 |
} else {
|
| 4882 |
fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
|
| 4883 |
fd, strerror(errno)); |
| 4884 |
return NULL; |
| 4885 |
} |
| 4886 |
} |
| 4887 |
|
| 4888 |
s = qemu_mallocz(sizeof(NetSocketState));
|
| 4889 |
if (!s)
|
| 4890 |
return NULL; |
| 4891 |
s->fd = fd; |
| 4892 |
|
| 4893 |
s->vc = qemu_new_vlan_client(vlan, net_socket_receive_dgram, NULL, s);
|
| 4894 |
qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
|
| 4895 |
|
| 4896 |
/* mcast: save bound address as dst */
|
| 4897 |
if (is_connected) s->dgram_dst=saddr;
|
| 4898 |
|
| 4899 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
| 4900 |
"socket: fd=%d (%s mcast=%s:%d)",
|
| 4901 |
fd, is_connected? "cloned" : "", |
| 4902 |
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
| 4903 |
return s;
|
| 4904 |
} |
| 4905 |
|
| 4906 |
static void net_socket_connect(void *opaque) |
| 4907 |
{
|
| 4908 |
NetSocketState *s = opaque; |
| 4909 |
qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
|
| 4910 |
} |
| 4911 |
|
| 4912 |
static NetSocketState *net_socket_fd_init_stream(VLANState *vlan, int fd, |
| 4913 |
int is_connected)
|
| 4914 |
{
|
| 4915 |
NetSocketState *s; |
| 4916 |
s = qemu_mallocz(sizeof(NetSocketState));
|
| 4917 |
if (!s)
|
| 4918 |
return NULL; |
| 4919 |
s->fd = fd; |
| 4920 |
s->vc = qemu_new_vlan_client(vlan, |
| 4921 |
net_socket_receive, NULL, s);
|
| 4922 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
| 4923 |
"socket: fd=%d", fd);
|
| 4924 |
if (is_connected) {
|
| 4925 |
net_socket_connect(s); |
| 4926 |
} else {
|
| 4927 |
qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
|
| 4928 |
} |
| 4929 |
return s;
|
| 4930 |
} |
| 4931 |
|
| 4932 |
static NetSocketState *net_socket_fd_init(VLANState *vlan, int fd, |
| 4933 |
int is_connected)
|
| 4934 |
{
|
| 4935 |
int so_type=-1, optlen=sizeof(so_type); |
| 4936 |
|
| 4937 |
if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type, |
| 4938 |
(socklen_t *)&optlen)< 0) {
|
| 4939 |
fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
|
| 4940 |
return NULL; |
| 4941 |
} |
| 4942 |
switch(so_type) {
|
| 4943 |
case SOCK_DGRAM:
|
| 4944 |
return net_socket_fd_init_dgram(vlan, fd, is_connected);
|
| 4945 |
case SOCK_STREAM:
|
| 4946 |
return net_socket_fd_init_stream(vlan, fd, is_connected);
|
| 4947 |
default:
|
| 4948 |
/* who knows ... this could be a eg. a pty, do warn and continue as stream */
|
| 4949 |
fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
|
| 4950 |
return net_socket_fd_init_stream(vlan, fd, is_connected);
|
| 4951 |
} |
| 4952 |
return NULL; |
| 4953 |
} |
| 4954 |
|
| 4955 |
static void net_socket_accept(void *opaque) |
| 4956 |
{
|
| 4957 |
NetSocketListenState *s = opaque; |
| 4958 |
NetSocketState *s1; |
| 4959 |
struct sockaddr_in saddr;
|
| 4960 |
socklen_t len; |
| 4961 |
int fd;
|
| 4962 |
|
| 4963 |
for(;;) {
|
| 4964 |
len = sizeof(saddr);
|
| 4965 |
fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
|
| 4966 |
if (fd < 0 && errno != EINTR) { |
| 4967 |
return;
|
| 4968 |
} else if (fd >= 0) { |
| 4969 |
break;
|
| 4970 |
} |
| 4971 |
} |
| 4972 |
s1 = net_socket_fd_init(s->vlan, fd, 1);
|
| 4973 |
if (!s1) {
|
| 4974 |
closesocket(fd); |
| 4975 |
} else {
|
| 4976 |
snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
|
| 4977 |
"socket: connection from %s:%d",
|
| 4978 |
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
| 4979 |
} |
| 4980 |
} |
| 4981 |
|
| 4982 |
static int net_socket_listen_init(VLANState *vlan, const char *host_str) |
| 4983 |
{
|
| 4984 |
NetSocketListenState *s; |
| 4985 |
int fd, val, ret;
|
| 4986 |
struct sockaddr_in saddr;
|
| 4987 |