我使用 Virtualbox 在 Windows 7 主机上安装了 Debian 客户机。安装默认包含 virtualbox-ose-guest-utils，因此我应该拥有所需的一切。如何打开共享剪贴板？
答案1
恐怕您无法在仅有命令行的访客上共享剪贴板。
这是因为 TTY 实际上并没有创建可供客户添加程序使用的适当的剪贴板，因此您需要一个完整的 GUI 来实现。
最好使用 SSH 从主机登录到客户机。这样，您就可以使用 SSH 客户端的功能（例如 Putty）来共享剪贴板。
答案2
这是可以做到的。我无法通过以下方式实现双向工作，但主机到客户机（即粘贴内容到文本控制台）确实可以工作。以下说明适用于 CentOS 5/6/7，但类似的机制应该适用于其他版本。
这将使 X11 剪贴板与 gpm 剪贴板保持同步。当共享剪贴板设置配置为“主机到客户机”时，VirtualBox 将在主机剪贴板更改时更新 X11 剪贴板……修补后的 gpm 将使用 xclip 将 X11 剪贴板数据拉入 gpm 剪贴板……然后可以使用鼠标中键粘贴。
共享剪贴板
可以在服务器/控制台模式下使“主机到客户机”剪贴板共享工作。“客户机到主机”共享目前无法工作，可能是由于 VBoxClient 和 Xvfb 之间存在问题。
安装 Xvfb
yum install Xvfb
安装 VBoxClient
mount /dev/cdrom /mnt
/mnt/VBoxLinuxAdditions.run
安装 xclip
下载、编译并安装 xclip (https://sourceforge.net/projects/xclip/） 作为/usr/local/bin/xclip。
安装修补的 gpm（带有 xclip 集成）
下载最新的 gpm 源并使用以下更改对其进行修补。
将二进制文件安装为/usr/local/bin/xclip-gpm。
这是 Alex Efros 补丁的更新版本（http://powerman.name/patch/gpm.html）。
gpm-1.20.7-xclip-support.patch
diff -rupN gpm-1.20.7-orig/src/daemon/do_selection.c gpm-1.20.7-xclip/src/daemon/do_selection.c
--- gpm-1.20.7-orig/src/daemon/do_selection.c 2012-10-27 10:21:38.000000000 +1300
+++ gpm-1.20.7-xclip/src/daemon/do_selection.c 2014-07-29 13:40:19.546689653 +1200
@@ -19,18 +19,49 @@
*
********/
+#include <sys/stat.h>
+#include <sys/wait.h>
#include "headers/message.h" /* messaging in gpm */
#include "headers/daemon.h" /* daemon internals */
#include "headers/gpmInt.h" /* daemon internals */
+#include "headers/xcap.h" /* daemon internals */
/*-------------------------------------------------------------------*/
int do_selection(Gpm_Event *event) /* returns 0, always */
{
static int x1=1, y1=1, x2, y2;
+
+ /* XCaP start */
+ struct stat X0;
+ FILE *xclip;
+ /* XCaP end */
+
#define UNPOINTER() 0
x2=event->x; y2=event->y;
switch(GPM_BARE_EVENTS(event->type)) {
+
+ /* XCaP start */
+ case GPM_UP:
+ if(event->buttons==GPM_B_LEFT) {
+ /* check Xwindow: if Xwindow not active - xclip freeze for 6 sec :( */
+ if (stat("/tmp/.X11-unix/X0", &X0) != -1) {
+ if (!(xclip=popen("/usr/local/bin/xclip -d :0 -i", "w")))
+ gpm_report(GPM_PR_OOPS,"open pipe");
+ /* send currect selection to Xwindow clipboard */
+ fwrite(sel_buffer, sizeof(char), sel_buffer_lth, xclip);
+ if (!WIFEXITED(pclose(xclip)))
+ gpm_report(GPM_PR_OOPS,"close pipe");
+ }
+ /*resize sel_buffer back to "normal" size*/
+ if(sel_buffer_lth>SCR_SIZE) {
+ free(sel_buffer);
+ sel_buffer=malloc(SCR_SIZE);
+ sel_buffer_lth=SCR_SIZE;
+ }
+ }
+ /* XCaP end */
+
case GPM_MOVE:
if (x2<1) x2++; else if (x2>maxx) x2--;
if (y2<1) y2++; else if (y2>maxy) y2--;
diff -rupN gpm-1.20.7-orig/src/daemon/loadlut.c gpm-1.20.7-xclip/src/daemon/loadlut.c
--- gpm-1.20.7-orig/src/daemon/loadlut.c 2012-10-27 10:21:38.000000000 +1300
+++ gpm-1.20.7-xclip/src/daemon/loadlut.c 2014-07-29 13:40:29.895722875 +1200
@@ -30,6 +30,8 @@
#include "headers/daemon.h" /* daemon internals */
#include "headers/gpmInt.h" /* GPM_SYS_CONSOLE */
+#include "headers/xcap.h"
+
int loadlut(char *charset)
{
int i, c, fd;
@@ -47,7 +49,9 @@ int loadlut(char *charset)
};
+/*
#define inwordLut (long_array+1)
+*/
for (i=0; charset[i]; ) {
i += getsym(charset+i, &this);
@@ -56,9 +60,15 @@ int loadlut(char *charset)
else
next = this;
for (c = this; c <= next; c++)
- inwordLut[c>>5] |= 1 << (c&0x1F);
+ (long_array+1)[c>>5] |= 1 << (c&0x1F);
}
+ /* XCaP */
+ /* used in mode=1 (word-by-word selection) */
+ for (i=0; i<8; i++)
+ inwordLut[i] = long_array[i+1];
+ /* XCaP */
+
if ((fd=open(option.consolename, O_WRONLY)) < 0) {
/* try /dev/console, if /dev/tty0 failed -- is that really senseful ??? */
free(option.consolename); /* allocated by main */
diff -rupN gpm-1.20.7-orig/src/daemon/old_main.c gpm-1.20.7-xclip/src/daemon/old_main.c
--- gpm-1.20.7-orig/src/daemon/old_main.c 2012-10-27 10:21:38.000000000 +1300
+++ gpm-1.20.7-xclip/src/daemon/old_main.c 2014-07-29 13:40:36.184743068 +1200
@@ -33,6 +33,8 @@
#include "headers/daemon.h" /* daemon internals */
#include "headers/gpmInt.h" /* daemon internals */
+#include "headers/xcap.h" /* daemon internals */
+
#ifndef max
#define max(a,b) ((a)>(b) ? (a) : (b))
#endif
@@ -73,6 +75,11 @@ int old_main()
maxfd=max(fd, maxfd);
}
+ /* XCaP start */
+ sel_buffer=malloc(SCR_SIZE);
+ sel_buffer_lth=SCR_SIZE;
+ /* XCaP end */
+
/*....................................... catch interesting signals */
signal(SIGTERM, gpm_killed);
diff -rupN gpm-1.20.7-orig/src/daemon/selection_copy.c gpm-1.20.7-xclip/src/daemon/selection_copy.c
--- gpm-1.20.7-orig/src/daemon/selection_copy.c 2012-10-27 10:21:38.000000000 +1300
+++ gpm-1.20.7-xclip/src/daemon/selection_copy.c 2014-07-29 13:40:42.677763908 +1200
@@ -22,11 +22,28 @@
#include <fcntl.h> /* open */
#include <unistd.h> /* close */
#include <time.h> /* time */
+#include <sys/kd.h>
#include "headers/message.h" /* messaging in gpm */
#include "headers/daemon.h" /* daemon internals */
+#include "headers/xcap.h"
+
+/* XCaP start */
+/* inword() from /usr/src/linux-2.4.19/drivers/char/selection.c */
+static inline int inword(const unsigned char c) {
+ return ( inwordLut[c>>5] >> (c & 0x1F) ) & 1;
+}
+/* atedge() from /usr/src/linux-2.4.19/drivers/char/selection.c */
+static inline int atedge(const int p, int size_row)
+{
+ /* p+2 changed to p+1 because kernel operate with screen address */
+ return (!(p % size_row) || !((p + 1) % size_row));
+}
+/* XCaP end */
+
+
void selection_copy(int x1, int y1, int x2, int y2, int mode)
{
/*
@@ -37,6 +54,106 @@ void selection_copy(int x1, int y1, int
unsigned short *arg = (unsigned short *)buf + 1;
int fd;
+ /* XCaP start */
+ int i, j; /* loop variables */
+ FILE *co_fptr; /* file with current console image */
+ char scr[SCR_SIZE]; /* current console image */
+ int scr_lth; /* current console image size */
+ char scrmap[E_TABSZ]; /* current screen map for inverse translation */
+ int p1, p2; /* cursor top/left and bottom/right position */
+ int n1, n2; /* selection top/left and bottom/right position */
+ int tmp; /* temp integer */
+ char *bp, *obp; /* temp pointers to fill sel_buffer */
+
+ /* read data from the console */
+ if( ((co_fptr=fopen("/dev/vcs","r"))==NULL) && /* usual /dev/ */
+ ((co_fptr=fopen("/dev/tty0","r"))==NULL) ) /* */
+ gpm_report(GPM_PR_OOPS, "open /dev/vcs or /dev/tty0");
+ scr_lth = fread(&scr, sizeof(char), SCR_SIZE-1, co_fptr);
+ fclose(co_fptr);
+ scr[scr_lth] = 0;
+ /* unmap font translation */
+ /* ... is it possible to use kernel's inverse_translate() here? */
+ if ((fd=open_console(O_RDONLY))<0)
+ gpm_report(GPM_PR_OOPS,GPM_MESS_OPEN_CON);
+ if (ioctl(fd,GIO_SCRNMAP,&scrmap))
+ gpm_report(GPM_PR_OOPS,"GIO_SCRNMAP");
+ close(fd);
+ for (j=0; j<scr_lth; j++) {
+ for (i=0; i<E_TABSZ; i++)
+ if ((unsigned char) scrmap[i] == (unsigned char) scr[j])
+ break;
+ scr[j] = (char) i;
+ }
+ /* calc start-position and how many bytes to copy */
+ if (y1>y2) { tmp=y1; y1=y2; y2=tmp; tmp=x1; x1=x2; x2=tmp; }
+ if (y1==y2 && x1>x2) { tmp=x1; x1=x2; x2=tmp; }
+ p1 = (y1-1)*win.ws_col+x1-1;
+ p2 = (y2-1)*win.ws_col+x2-1;
+ n1 = 0;
+ n2 = 0;
+ /* selection logic from /usr/src/linux-2.4.19/drivers/char/selection.c */
+ if (mode==0) { /* character-by-character selection */
+ n1=p1;
+ n2=p2;
+ }
+ if (mode==1) { /* word-by-word selection */
+ tmp = isspace(scr[p1]);
+ for (n1 = p1; ; p1--) {
+ if ((tmp && !isspace(scr[p1])) || (!tmp && !inword(scr[p1])))
+ break;
+ n1 = p1;
+ if (!(p1 % win.ws_col))
+ break;
+ }
+ tmp = isspace(scr[p2]);
+ for (n2 = p2; ; p2++) {
+ if ((tmp && !isspace(scr[p2])) || (!tmp && !inword(scr[p2])))
+ break;
+ n2 = p2;
+ if (!((p2+1) % win.ws_col))
+ break;
+ }
+ }
+ if (mode==2) { /* line-by-line selection */
+ n1 = p1 - p1 % win.ws_col;
+ n2 = p2 + win.ws_col - p2 % win.ws_col - 1;
+ }
+ /* select to end of line if on trailing space */
+ if (n2 > n1 && !atedge(n2, win.ws_col) && isspace(scr[n2])) {
+ for (p2 = n2+1; ; p2++)
+ if (!isspace(scr[p2]) || atedge(p2, win.ws_col))
+ break;
+ if (isspace(scr[p2]))
+ n2 = p2;
+ }
+ /* save selection to sel_buffer */
+ if (mode<3) {
+ /* is the buffer big enough? */
+ if(((n2-n1+1)>=sel_buffer_lth) && ((n2-n1+1)>=SCR_SIZE)) {
+ free(sel_buffer);
+ sel_buffer=malloc((n2-n1+1)+1);
+ }
+ /* save selection, replac<C5> trailing spaces to \n in each line */
+ bp = sel_buffer;
+ obp= sel_buffer;
+ for (i = n1; i <= n2; i++ ) {
+ *bp = scr[i];
+ if (!isspace(*bp++))
+ obp = bp;
+ if (! ((i+1) % win.ws_col)) {
+ if (obp != bp) {
+ bp = obp;
+ *bp++ = '\n';
+ }
+ obp = bp;
+ }
+ }
+ sel_buffer_lth = bp - sel_buffer;
+ *(sel_buffer+sel_buffer_lth) = 0;
+ }
+ /* XCaP end */
+
buf[sizeof(short)-1] = 2; /* set selection */
arg[0]=(unsigned short)x1;
diff -rupN gpm-1.20.7-orig/src/daemon/selection_paste.c gpm-1.20.7-xclip/src/daemon/selection_paste.c
--- gpm-1.20.7-orig/src/daemon/selection_paste.c 2012-10-27 10:21:38.000000000 +1300
+++ gpm-1.20.7-xclip/src/daemon/selection_paste.c 2014-07-29 13:40:48.754783436 +1200
@@ -22,15 +22,23 @@
#include <time.h> /* time */
#include <fcntl.h> /* open */
#include <unistd.h> /* close */
+#include <sys/wait.h>
#include "headers/message.h" /* messaging in gpm */
#include "headers/daemon.h" /* daemon internals */
+#include "headers/xcap.h"
void selection_paste(void)
{
char c=3;
int fd;
+ /* XCaP start */
+ int i;
+ struct stat X0;
+ FILE *xclip;
+ /* XCaP start */
+
if (!opt_aged && (0 != opt_age_limit) &&
(last_selection_time + opt_age_limit < time(0))) {
opt_aged = 1;
@@ -41,9 +49,30 @@ void selection_paste(void)
return;
}
+ /* XCaP start */
+ /* check Xwindow: if Xwindow not active - xclip freeze for 6 sec :( */
+ if (stat("/tmp/.X11-unix/X0", &X0) != -1) {
+ if (!(xclip=popen("/usr/local/bin/xclip -d :0 -o", "r")))
+ gpm_report(GPM_PR_OOPS,"open pipe");
+ /* read Xwindow clipboard into current selection */
+ if ((i = fread(sel_buffer, sizeof(char), SCR_SIZE-1, xclip)) > 0)
+ *(sel_buffer+(sel_buffer_lth=i)) = 0;
+ if (!WIFEXITED(pclose(xclip)))
+ gpm_report(GPM_PR_OOPS,"close pipe");
+ }
+ fd=open_console(O_WRONLY);
+ for(i=0; i<sel_buffer_lth; i++)
+ if (ioctl(fd,TIOCSTI,&sel_buffer[i]) < 0)
+ gpm_report(GPM_PR_OOPS,"TIOCSTI");
+ close(fd);
+ return; /* never paste from kernel buffer */
+ /* XCaP end */
+
+/*
fd=open_console(O_WRONLY);
if(ioctl(fd, TIOCLINUX, &c) < 0)
gpm_report(GPM_PR_OOPS,GPM_MESS_IOCTL_TIOCLINUX);
close(fd);
+*/
}
diff -rupN gpm-1.20.7-orig/src/headers/xcap.h gpm-1.20.7-xclip/src/headers/xcap.h
--- gpm-1.20.7-orig/src/headers/xcap.h 1970-01-01 12:00:00.000000000 +1200
+++ gpm-1.20.7-xclip/src/headers/xcap.h 2014-07-29 13:40:53.619799026 +1200
@@ -0,0 +1,14 @@
+/*
+ * Xwindow Copy&Paste patch
+ * (c) 2002 Alex Efros <[email protected]>
+ */
+
+#define SCR_SIZE 10240 /* current console image, for 80x25 needed only 2000 */
+
+#include <asm/types.h> /* __u32 */
+__u32 inwordLut[8]; /* used in gpn.c and gpm.c */
+
+char *sel_buffer; /* buffer with current selection */
+int sel_buffer_lth; /* size of buffer with current selection */
+
+
diff -rupN gpm-1.20.7-orig/src/prog/display-buttons.c gpm-1.20.7-xclip/src/prog/display-buttons.c
--- gpm-1.20.7-orig/src/prog/display-buttons.c 2012-10-27 10:21:38.000000000 +1300
+++ gpm-1.20.7-xclip/src/prog/display-buttons.c 2014-07-29 13:41:00.881822332 +1200
@@ -36,7 +36,7 @@
#include <stdio.h> /* printf() */
#include <time.h> /* time() */
#include <errno.h> /* errno */
-#include <gpm.h> /* gpm information */
+#include <headers/gpm.h> /* gpm information */
/* display resulting data */
int display_data(Gpm_Event *event, void *data)
配置为重启后启动
/etc/rc.local
# Support for a shared clipboard
(/usr/bin/Xvfb :0 >/dev/null 2>&1) &
sleep 1
DISPLAY=:0 /bin/VBoxClient --clipboard
/usr/local/bin/xclip-gpm -m /dev/input/mice -t exps2
答案3
它还没有实现，请参阅这个已有 6 年历史的未完成功能请求。
答案4
这是我在没有 Gnome 桌面环境的情况下安装的 Debian 7.4.0 服务器启用双向剪贴板支持的方法。我使用的是 VirtualBox 4.3.6。
安装并启动 X 服务器：
apt-get install x-window-system-core && startx
安装 xclip 以获得剪贴板支持
apt-get install xclip
安装工具，以便 Virtualbox 可以构建客户机附加组件
apt-get install bzip2 build-essential linux-headers-`uname -r`
挂载客户机附加映像并安装附加组件
mount /dev/cdrom /mnt && bash /mnt/VBoxLinuxAdditions.run
最后使用 重新启动 debian shutdown -r now。