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Separate virDomainDefParseBootOptions

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Split out parsing of most of the <os> subelements into a separate
function.
This commit is contained in:
Ján Tomko 2016-05-11 14:17:44 +02:00
parent 2d3940907d
commit e4cbfa717a
1 changed files with 83 additions and 63 deletions
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146
src/conf/domain_conf.c
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@ -15105,6 +15105,87 @@ virDomainVcpuParse(virDomainDefPtr def,
return ret;
}
static int
virDomainDefParseBootOptions(virDomainDefPtr def,
xmlXPathContextPtr ctxt,
virHashTablePtr *bootHash)
{
xmlNodePtr *nodes = NULL;
int ret = -1;
size_t i;
int n;
/*
* Booting options for different OS types....
*
* - A bootloader (and optional kernel+initrd) (xen)
* - A kernel + initrd (xen)
* - A boot device (and optional kernel+initrd) (hvm)
* - An init script (exe)
*/
if (def->os.type == VIR_DOMAIN_OSTYPE_EXE) {
def->os.init = virXPathString("string(./os/init[1])", ctxt);
def->os.cmdline = virXPathString("string(./os/cmdline[1])", ctxt);
if ((n = virXPathNodeSet("./os/initarg", ctxt, &nodes)) < 0)
goto error;
if (VIR_ALLOC_N(def->os.initargv, n+1) < 0)
goto error;
for (i = 0; i < n; i++) {
if (!nodes[i]->children ||
!nodes[i]->children->content) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("No data supplied for <initarg> element"));
goto error;
}
if (VIR_STRDUP(def->os.initargv[i],
(const char*) nodes[i]->children->content) < 0)
goto error;
}
def->os.initargv[n] = NULL;
VIR_FREE(nodes);
}
if (def->os.type == VIR_DOMAIN_OSTYPE_XEN ||
def->os.type == VIR_DOMAIN_OSTYPE_HVM ||
def->os.type == VIR_DOMAIN_OSTYPE_UML) {
xmlNodePtr loader_node;
def->os.kernel = virXPathString("string(./os/kernel[1])", ctxt);
def->os.initrd = virXPathString("string(./os/initrd[1])", ctxt);
def->os.cmdline = virXPathString("string(./os/cmdline[1])", ctxt);
def->os.dtb = virXPathString("string(./os/dtb[1])", ctxt);
def->os.root = virXPathString("string(./os/root[1])", ctxt);
if ((loader_node = virXPathNode("./os/loader[1]", ctxt))) {
if (VIR_ALLOC(def->os.loader) < 0)
goto error;
if (virDomainLoaderDefParseXML(loader_node, def->os.loader) < 0)
goto error;
def->os.loader->nvram = virXPathString("string(./os/nvram[1])", ctxt);
def->os.loader->templt = virXPathString("string(./os/nvram[1]/@template)", ctxt);
}
}
if (def->os.type == VIR_DOMAIN_OSTYPE_HVM) {
if (virDomainDefParseBootXML(ctxt, def) < 0)
goto error;
if (!(*bootHash = virHashCreate(5, NULL)))
goto error;
}
ret = 0;
error:
VIR_FREE(nodes);
return ret;
}
static virDomainDefPtr
virDomainDefParseXML(xmlDocPtr xml,
xmlNodePtr root,
@ -16080,69 +16161,8 @@ virDomainDefParseXML(xmlDocPtr xml,
}
VIR_FREE(nodes);
/*
* Booting options for different OS types....
*
* - A bootloader (and optional kernel+initrd) (xen)
* - A kernel + initrd (xen)
* - A boot device (and optional kernel+initrd) (hvm)
* - An init script (exe)
*/
if (def->os.type == VIR_DOMAIN_OSTYPE_EXE) {
def->os.init = virXPathString("string(./os/init[1])", ctxt);
def->os.cmdline = virXPathString("string(./os/cmdline[1])", ctxt);
if ((n = virXPathNodeSet("./os/initarg", ctxt, &nodes)) < 0)
goto error;
if (VIR_ALLOC_N(def->os.initargv, n+1) < 0)
goto error;
for (i = 0; i < n; i++) {
if (!nodes[i]->children ||
!nodes[i]->children->content) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("No data supplied for <initarg> element"));
goto error;
}
if (VIR_STRDUP(def->os.initargv[i],
(const char*) nodes[i]->children->content) < 0)
goto error;
}
def->os.initargv[n] = NULL;
VIR_FREE(nodes);
}
if (def->os.type == VIR_DOMAIN_OSTYPE_XEN ||
def->os.type == VIR_DOMAIN_OSTYPE_HVM ||
def->os.type == VIR_DOMAIN_OSTYPE_UML) {
xmlNodePtr loader_node;
def->os.kernel = virXPathString("string(./os/kernel[1])", ctxt);
def->os.initrd = virXPathString("string(./os/initrd[1])", ctxt);
def->os.cmdline = virXPathString("string(./os/cmdline[1])", ctxt);
def->os.dtb = virXPathString("string(./os/dtb[1])", ctxt);
def->os.root = virXPathString("string(./os/root[1])", ctxt);
if ((loader_node = virXPathNode("./os/loader[1]", ctxt))) {
if (VIR_ALLOC(def->os.loader) < 0)
goto error;
if (virDomainLoaderDefParseXML(loader_node, def->os.loader) < 0)
goto error;
def->os.loader->nvram = virXPathString("string(./os/nvram[1])", ctxt);
def->os.loader->templt = virXPathString("string(./os/nvram[1]/@template)", ctxt);
}
}
if (def->os.type == VIR_DOMAIN_OSTYPE_HVM) {
if (virDomainDefParseBootXML(ctxt, def) < 0)
goto error;
if (!(bootHash = virHashCreate(5, NULL)))
goto error;
}
if (virDomainDefParseBootOptions(def, ctxt, &bootHash) < 0)
goto error;
/* analysis of the disk devices */
if ((n = virXPathNodeSet("./devices/disk", ctxt, &nodes)) < 0)