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* src/sexpr.c src/sexpr.h src/xend_internal.c src/xml.c: applied

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patch from Jeremy Katz to add graphical console for PV Xen guests
Daniel
This commit is contained in:
Daniel Veillard 2006-08-26 15:30:44 +00:00
parent fab8e90e6d
commit ea30f6aa24
5 changed files with 101 additions and 34 deletions
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5
ChangeLog
View File

@ -1,3 +1,8 @@
Sat Aug 26 16:36:15 CEST 2006 Daniel Veillard <veillard@redhat.com>
* src/sexpr.c src/sexpr.h src/xend_internal.c src/xml.c: applied
patch from Jeremy Katz to add graphical console for PV Xen guests
Sat Aug 26 00:17:24 CEST 2006 Daniel Veillard <veillard@redhat.com>
* docs/site.xsl docs/*.html: add links to virt-manager

24
src/sexpr.c
View File

@ -486,3 +486,27 @@ sexpr_node(struct sexpr *sexpr, const char *node)
return (n && n->car->kind == SEXPR_VALUE) ? n->car->value : NULL;
}
/**
* sexpr_fmt_node:
* @sexpr: a pointer to a parsed S-Expression
* @fmt: a path for the node to lookup in the S-Expression
* @... extra data to build the path
*
* Search a node value in the S-Expression based on its path
* NOTE: path are limited to 4096 bytes.
*
* Returns the value of the node or NULL if not found.
*/
const char *
sexpr_fmt_node(struct sexpr *sexpr, const char *fmt, ...)
{
va_list ap;
char node[4096];
va_start(ap, fmt);
vsnprintf(node, sizeof(node), fmt, ap);
va_end(ap);
return sexpr_node(sexpr, node);
}

1
src/sexpr.h
View File

@ -45,5 +45,6 @@ void sexpr_free(struct sexpr *sexpr);
/* lookup in S-Expressions */
const char *sexpr_node(struct sexpr *sexpr, const char *node);
const char *sexpr_fmt_node(struct sexpr *sexpr, const char *fmt, ...);
struct sexpr *sexpr_lookup(struct sexpr *sexpr, const char *node);
#endif

28
src/xend_internal.c
View File

@ -1618,23 +1618,23 @@ xend_parse_sexp_desc(virConnectPtr conn, struct sexpr *root)
virBufferAdd(&buf, " <readonly/>\n", 18);
virBufferAdd(&buf, " </disk>\n", 12);
}
}
/* Graphics device */
tmp = sexpr_node(root, "domain/image/hvm/vnc");
if (tmp != NULL) {
if (tmp[0] == '1') {
int port = xenStoreDomainGetVNCPort(conn, domid);
if (port == -1)
port = 5900 + domid;
virBufferVSprintf(&buf, " <graphics type='vnc' port='%d'/>\n", port);
}
/* Graphics device */
tmp = sexpr_fmt_node(root, "domain/image/%s/vnc", hvm ? "hvm" : "linux");
if (tmp != NULL) {
if (tmp[0] == '1') {
int port = xenStoreDomainGetVNCPort(conn, domid);
if (port == -1)
port = 5900 + domid;
virBufferVSprintf(&buf, " <graphics type='vnc' port='%d'/>\n", port);
}
}
tmp = sexpr_node(root, "domain/image/hvm/sdl");
if (tmp != NULL) {
if (tmp[0] == '1')
virBufferAdd(&buf, " <graphics type='sdl'/>\n", 27 );
}
tmp = sexpr_fmt_node(root, "domain/image/%s/sdl", hvm ? "hvm" : "linux");
if (tmp != NULL) {
if (tmp[0] == '1')
virBufferAdd(&buf, " <graphics type='sdl'/>\n", 27 );
}
tty = xenStoreDomainGetConsolePath(conn, domid);

77
src/xml.c
View File

@ -570,6 +570,40 @@ virDomainGetXMLDesc(virDomainPtr domain, int flags)
#endif /* 0 - UNUSED */
#ifndef PROXY
/**
* virtDomainParseXMLGraphicsDesc:
* @node: node containing graphics description
* @buf: a buffer for the result S-Expr
*
* Parse the graphics part of the XML description and add it to the S-Expr
* in buf. This is a temporary interface as the S-Expr interface will be
* replaced by XML-RPC in the future. However the XML format should stay
* valid over time.
*
* Returns 0 in case of success, -1 in case of error
*/
static int virDomainParseXMLGraphicsDesc(xmlNodePtr node, virBufferPtr buf)
{
xmlChar *graphics_type = NULL;
graphics_type = xmlGetProp(node, BAD_CAST "type");
if (graphics_type != NULL) {
if (xmlStrEqual(graphics_type, BAD_CAST "sdl")) {
virBufferAdd(buf, "(sdl 1)", 7);
// TODO:
// Need to understand sdl options
//
//virBufferAdd(buf, "(display localhost:10.0)", 24);
//virBufferAdd(buf, "(xauthority /root/.Xauthority)", 30);
}
else if (xmlStrEqual(graphics_type, BAD_CAST "vnc"))
virBufferAdd(buf, "(vnc 1)", 7);
xmlFree(graphics_type);
}
return 0;
}
/**
* virDomainParseXMLOSDescHVM:
* @node: node containing HVM OS description
@ -591,7 +625,7 @@ virDomainParseXMLOSDescHVM(xmlNodePtr node, virBufferPtr buf, xmlXPathContextPtr
const xmlChar *type = NULL;
const xmlChar *loader = NULL;
const xmlChar *boot_dev = NULL;
xmlChar *graphics_type = NULL;
int res;
cur = node->children;
while (cur != NULL) {
@ -733,24 +767,11 @@ virDomainParseXMLOSDescHVM(xmlNodePtr node, virBufferPtr buf, xmlXPathContextPtr
/* Is a graphics device specified? */
obj = xmlXPathEval(BAD_CAST "/domain/devices/graphics[1]", ctxt);
if ((obj != NULL) && (obj->type == XPATH_NODESET) &&
(obj->nodesetval != NULL) && (obj->nodesetval->nodeNr = 0)) {
virXMLError(VIR_ERR_NO_OS, "", 0); /* TODO: error */
goto error;
}
graphics_type = xmlGetProp(obj->nodesetval->nodeTab[0], BAD_CAST "type");
if (graphics_type != NULL) {
if (xmlStrEqual(graphics_type, BAD_CAST "sdl")) {
virBufferAdd(buf, "(sdl 1)", 7);
// TODO:
// Need to understand sdl options
//
//virBufferAdd(buf, "(display localhost:10.0)", 24);
//virBufferAdd(buf, "(xauthority /root/.Xauthority)", 30);
(obj->nodesetval != NULL) && (obj->nodesetval->nodeNr > 0)) {
res = virDomainParseXMLGraphicsDesc(obj->nodesetval->nodeTab[0], buf);
if (res != 0) {
goto error;
}
else if (xmlStrEqual(graphics_type, BAD_CAST "vnc"))
virBufferAdd(buf, "(vnc 1)", 7);
xmlFree(graphics_type);
}
xmlXPathFreeObject(obj);
@ -767,6 +788,7 @@ error:
* virDomainParseXMLOSDescPV:
* @node: node containing PV OS description
* @buf: a buffer for the result S-Expr
* @ctxt: a path context representing the XML description
*
* Parse the OS part of the XML description for a paravirtualized domain
* and add it to the S-Expr in buf. This is a temporary interface as the
@ -776,14 +798,16 @@ error:
* Returns 0 in case of success, -1 in case of error.
*/
static int
virDomainParseXMLOSDescPV(xmlNodePtr node, virBufferPtr buf)
virDomainParseXMLOSDescPV(xmlNodePtr node, virBufferPtr buf, xmlXPathContextPtr ctxt)
{
xmlNodePtr cur, txt;
xmlXPathObjectPtr obj = NULL;
const xmlChar *type = NULL;
const xmlChar *root = NULL;
const xmlChar *kernel = NULL;
const xmlChar *initrd = NULL;
const xmlChar *cmdline = NULL;
int res;
cur = node->children;
while (cur != NULL) {
@ -840,6 +864,19 @@ virDomainParseXMLOSDescPV(xmlNodePtr node, virBufferPtr buf)
virBufferVSprintf(buf, "(root '%s')", (const char *) root);
if (cmdline != NULL)
virBufferVSprintf(buf, "(args '%s')", (const char *) cmdline);
/* Is a graphics device specified? */
obj = xmlXPathEval(BAD_CAST "/domain/devices/graphics[1]", ctxt);
if ((obj != NULL) && (obj->type == XPATH_NODESET) &&
(obj->nodesetval != NULL) && (obj->nodesetval->nodeNr > 0)) {
res = virDomainParseXMLGraphicsDesc(obj->nodesetval->nodeTab[0], buf);
if (res != 0) {
goto error;
}
}
xmlXPathFreeObject(obj);
error:
virBufferAdd(buf, "))", 2);
return (0);
}
@ -1177,7 +1214,7 @@ virDomainParseXMLDesc(const char *xmldesc, char **name)
}
if ((tmpobj == NULL) || !xmlStrEqual(tmpobj->stringval, BAD_CAST "hvm")) {
res = virDomainParseXMLOSDescPV(obj->nodesetval->nodeTab[0], &buf);
res = virDomainParseXMLOSDescPV(obj->nodesetval->nodeTab[0], &buf, ctxt);
} else {
hvm = 1;
res = virDomainParseXMLOSDescHVM(obj->nodesetval->nodeTab[0], &buf, ctxt);