Guys
When trying to move xen4.0 and libxl I found that libxl does not support
vncpassword with in the device model.
Was there are particular reason this feature is not implemented . To get
our vms ported in to xen4 and to change our management stack to use
libxl. I have done the following patch what do you guys think.
Thank
--
Gihan Munasinghe
R&D Team Leader
Flexiant Ltd.
www.flexiant.com
diff -Naur vanila/xen-4.0.0/tools/libxl/libxl.c xen-4.0.0/tools/libxl/libxl.c
--- vanila/xen-4.0.0/tools/libxl/libxl.c 2010-04-07 17:12:04.000000000
+0100
+++ xen-4.0.0/tools/libxl/libxl.c 2010-05-06 15:38:02.000000000 +0100
@@ -186,7 +186,7 @@
if (info->hvm) {
ret = build_hvm(ctx, domid, info, state);
if (ret) goto out;
-
+
vments = libxl_calloc(ctx, 5, sizeof(char *));
vments[0] = "rtc/timeoffset";
vments[1] = (info->u.hvm.timeoffset) ? info->u.hvm.timeoffset : "";
@@ -663,7 +663,11 @@
flexarray_set(dm_args, num++, "-vnc");
if (info->vncdisplay) {
if (info->vnclisten && strchr(info->vnclisten, ':') == NULL) {
- flexarray_set(dm_args, num++, libxl_sprintf(ctx, "%s:%d",
info->vnclisten, info->vncdisplay));
+ if(info->vncpasswd){
+ flexarray_set(dm_args, num++, libxl_sprintf(ctx,
"%s:%d,password", info->vnclisten, info->vncdisplay));
+ }else{
+ flexarray_set(dm_args, num++, libxl_sprintf(ctx, "%s:%d",
info->vnclisten, info->vncdisplay));
+ }
} else {
flexarray_set(dm_args, num++, libxl_sprintf(ctx,
"127.0.0.1:%d", info->vncdisplay));
}
@@ -786,6 +790,7 @@
vfb->vnclisten = info->vnclisten;
vfb->vncdisplay = info->vncdisplay;
vfb->vncunused = info->vncunused;
+ vfb->vncpasswd = info->vncpasswd;
vfb->keymap = info->keymap;
vfb->sdl = info->sdl;
vfb->opengl = info->opengl;
@@ -1012,10 +1017,32 @@
p->dom_path = libxl_xs_get_dompath(ctx, info->domid);
if (!p->dom_path) { libxl_free(ctx, p); return ERROR_FAIL; }
+ xs_transaction_t t;
+ char *vm_path;
+ char **pass_stuff;
+ if(info->vncpasswd){
+ retry_transaction:
+ //Supporting vnc password
+ // Need to find uuid and the write the vnc password to xenstore so that
qemu can pick it up
+ t = xs_transaction_start(ctx->xsh);
+ vm_path = libxl_xs_read(ctx,t,libxl_sprintf(ctx, "%s/vm",
p->dom_path));
+ if(vm_path){
+ //Now write the vncpassword in to it
+ pass_stuff = libxl_calloc(ctx, 2, sizeof(char *));
+ pass_stuff[0] = "vncpasswd";
+ pass_stuff[1] = info->vncpasswd;
+ libxl_xs_writev(ctx,t,vm_path,pass_stuff);
+ if (!xs_transaction_end(ctx->xsh, t, 0))
+ if (errno == EAGAIN)
+ goto retry_transaction;
+ }
+
+ }
+
rc = libxl_spawn_spawn(ctx, p, "device model", dm_xenstore_record_pid);
if (rc < 0) goto xit;
if (!rc) { /* inner child */
- libxl_exec(null, logfile_w, logfile_w,
+ libxl_exec(null, logfile_w, logfile_w,
info->device_model, args);
}
@@ -1571,6 +1598,8 @@
info->vnclisten = libxl_sprintf(ctx, "%s", vfb->vnclisten);
info->vncdisplay = vfb->vncdisplay;
info->vncunused = vfb->vncunused;
+ if(vfb->vncpasswd)
+ info->vncpasswd = vfb->vncpasswd;
if (vfb->keymap)
info->keymap = libxl_sprintf(ctx, "%s", vfb->keymap);
info->sdl = vfb->sdl;
@@ -1652,6 +1681,8 @@
flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", vfb->vnc));
flexarray_set(back, boffset++, "vnclisten");
flexarray_set(back, boffset++, vfb->vnclisten);
+ flexarray_set(back, boffset++, "vncpasswd");
+ flexarray_set(back, boffset++, vfb->vncpasswd);
flexarray_set(back, boffset++, "vncdisplay");
flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", vfb->vncdisplay));
flexarray_set(back, boffset++, "vncunused");
diff -Naur vanila/xen-4.0.0/tools/libxl/libxl.h xen-4.0.0/tools/libxl/libxl.h
--- vanila/xen-4.0.0/tools/libxl/libxl.h 2010-04-07 17:12:04.000000000
+0100
+++ xen-4.0.0/tools/libxl/libxl.h 2010-05-06 14:59:28.000000000 +0100
@@ -128,6 +128,7 @@
bool stdvga; /* stdvga enabled or disabled */
bool vnc; /* vnc enabled or disabled */
char *vnclisten; /* address:port that should be listened on for the VNC
server if vnc is set */
+ char *vncpasswd; /* the VNC password */
int vncdisplay; /* set VNC display number */
bool vncunused; /* try to find an unused port for the VNC server */
char *keymap; /* set keyboard layout, default is en-us keyboard */
@@ -149,6 +150,7 @@
int devid;
bool vnc; /* vnc enabled or disabled */
char *vnclisten; /* address:port that should be listened on for the VNC
server if vnc is set */
+ char *vncpasswd; /* the VNC password */
int vncdisplay; /* set VNC display number */
bool vncunused; /* try to find an unused port for the VNC server */
char *keymap; /* set keyboard layout, default is en-us keyboard */
diff -Naur vanila/xen-4.0.0/tools/libxl/xl.c xen-4.0.0/tools/libxl/xl.c
--- vanila/xen-4.0.0/tools/libxl/xl.c 2010-04-07 17:12:04.000000000 +0100
+++ xen-4.0.0/tools/libxl/xl.c 2010-05-06 15:32:57.000000000 +0100
@@ -561,6 +561,8 @@
(*vfbs)[*num_vfbs].vnc = atoi(p2 + 1);
} else if (!strcmp(p, "vnclisten")) {
(*vfbs)[*num_vfbs].vnclisten = strdup(p2 + 1);
+ } else if (!strcmp(p, "vncpasswd")) {
+ (*vfbs)[*num_vfbs].vncpasswd = strdup(p2 + 1);
} else if (!strcmp(p, "vncdisplay")) {
(*vfbs)[*num_vfbs].vncdisplay = atoi(p2 + 1);
} else if (!strcmp(p, "vncunused")) {
@@ -639,6 +641,8 @@
dm_info->vnc = l;
if (!xlu_cfg_get_string (config, "vnclisten", &buf))
dm_info->vnclisten = strdup(buf);
+ if (!xlu_cfg_get_string (config, "vncpasswd", &buf))
+ dm_info->vncpasswd = strdup(buf);
if (!xlu_cfg_get_long (config, "vncdisplay", &l))
dm_info->vncdisplay = l;
if (!xlu_cfg_get_long (config, "vncunused", &l))
@@ -697,7 +701,6 @@
libxl_waiter *w1 = NULL, *w2 = NULL;
memset(&dm_info, 0x00, sizeof(dm_info));
- printf("Parsing config file %s\n", config_file);
parse_config_file(config_file, &info1, &info2, &disks, &num_disks, &vifs,
&num_vifs, &pcidevs, &num_pcidevs, &vfbs, &num_vfbs, &vkbs, &num_vkbs,
&dm_info);
if (debug)
printf_info(&info1, &info2, disks, num_disks, vifs, num_vifs, pcidevs,
num_pcidevs, vfbs, num_vfbs, vkbs, num_vkbs, &dm_info);
@@ -718,12 +721,14 @@
return;
}
+
if (!restore_file || !need_daemon) {
if (dm_info.saved_state) {
free(dm_info.saved_state);
dm_info.saved_state = NULL;
}
ret = libxl_domain_build(&ctx, &info2, domid, &state);
+
} else {
int restore_fd;
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