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* src/xml.c: started to add block devices and interfaces descriptions
in the XML dump. Daniel
This commit is contained in:
Daniel Veillard
parent
a4de636ade
commit
3447b53fea
@ -1,3 +1,8 @@
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Wed Dec 14 12:20:06 CET 2005 Daniel Veillard <veillard@redhat.com>
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* src/xml.c: started to add block devices and interfaces descriptions
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in the XML dump.
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Tue Dec 13 17:20:11 CET 2005 Daniel Veillard <veillard@redhat.com>
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* include/libvir.h src/Makefile.am src/internal.h src/libvir.c
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228
src/xml.c
228
src/xml.c
@ -132,6 +132,228 @@ virBufferVSprintf(virBufferPtr buf, const char *format, ...) {
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return(0);
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}
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/**
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* virDomainGetXMLDevice:
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* @domain: a domain object
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* @sub: the xenstore subsection 'vbd', 'vif', ...
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* @dev: the xenstrore internal device number
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* @name: the value's name
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*
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* Extract one information the device used by the domain from xensttore
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*
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* Returns the new string or NULL in case of error
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*/
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static char *
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virDomainGetXMLDeviceInfo(virDomainPtr domain, const char *sub,
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long dev, const char *name) {
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struct xs_transaction_handle* t;
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char s[256];
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char *ret = NULL;
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unsigned int len = 0;
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snprintf(s, 255, "/local/domain/0/backend/%s/%d/%ld/%s",
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sub, domain->handle, dev, name);
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s[255] = 0;
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t = xs_transaction_start(domain->conn->xshandle);
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if (t == NULL)
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goto done;
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ret = xs_read(domain->conn->xshandle, t, &s[0], &len);
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done:
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if (t != NULL)
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xs_transaction_end(domain->conn->xshandle, t, 0);
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return(ret);
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}
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/**
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* virDomainGetXMLDevice:
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* @domain: a domain object
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* @buf: the output buffer object
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* @dev: the xenstrore internal device number
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*
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* Extract and dump in the buffer informations on the device used by the domain
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*
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* Returns 0 in case of success, -1 in case of failure
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*/
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static int
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virDomainGetXMLDevice(virDomainPtr domain, virBufferPtr buf, long dev) {
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char *type, *val;
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type = virDomainGetXMLDeviceInfo(domain, "vbd", dev, "type");
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if (type == NULL)
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return(-1);
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if (!strcmp(type, "file")) {
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virBufferVSprintf(buf, " <disk type='file'>\n");
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val = virDomainGetXMLDeviceInfo(domain, "vbd", dev, "params");
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if (val != NULL) {
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virBufferVSprintf(buf, " <source file='%s'/>\n", val);
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free(val);
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}
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val = virDomainGetXMLDeviceInfo(domain, "vbd", dev, "dev");
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if (val != NULL) {
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virBufferVSprintf(buf, " <target dev='%s'/>\n", val);
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free(val);
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}
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virBufferAdd(buf, " </disk>\n", 12);
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} else {
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TODO
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fprintf(stderr, "Don't know how to handle device type %s\n", type);
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}
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free(type);
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return(0);
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}
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/**
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* virDomainGetXMLDevices:
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* @domain: a domain object
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* @buf: the output buffer object
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*
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* Extract the devices used by the domain and dumps then in the buffer
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*
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* Returns 0 in case of success, -1 in case of failure
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*/
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static int
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virDomainGetXMLDevices(virDomainPtr domain, virBufferPtr buf) {
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struct xs_transaction_handle* t;
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int ret = -1;
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unsigned int num, i;
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long id;
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char **list = NULL, *endptr;
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char backend[200];
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virConnectPtr conn;
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conn = domain->conn;
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if ((conn == NULL) || (conn->magic != VIR_CONNECT_MAGIC))
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return(-1);
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t = xs_transaction_start(conn->xshandle);
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if (t == NULL)
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goto done;
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snprintf(backend, 199, "/local/domain/0/backend/vbd/%d",
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virDomainGetID(domain));
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backend[199] = 0;
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list = xs_directory(conn->xshandle, t, backend, &num);
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ret = 0;
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if (list == NULL)
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goto done;
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for (i = 0;i < num;i++) {
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id = strtol(list[i], &endptr, 10);
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if ((endptr == list[i]) || (*endptr != 0)) {
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ret = -1;
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goto done;
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}
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virDomainGetXMLDevice(domain, buf, id);
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}
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done:
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if (t != NULL)
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xs_transaction_end(conn->xshandle, t, 0);
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if (list != NULL)
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free(list);
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return(ret);
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}
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/**
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* virDomainGetXMLInterface:
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* @domain: a domain object
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* @buf: the output buffer object
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* @dev: the xenstrore internal device number
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*
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* Extract and dump in the buffer informations on the interface used by
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* the domain
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*
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* Returns 0 in case of success, -1 in case of failure
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*/
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static int
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virDomainGetXMLInterface(virDomainPtr domain, virBufferPtr buf, long dev) {
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char *type, *val;
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type = virDomainGetXMLDeviceInfo(domain, "vif", dev, "bridge");
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if (type == NULL) {
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TODO
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fprintf(stderr, "Don't know how to handle non bridge interfaces\n");
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return(-1);
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} else {
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virBufferVSprintf(buf, " <interface type='bridge'>\n");
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virBufferVSprintf(buf, " <source bridge='%s'/>\n", type);
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val = virDomainGetXMLDeviceInfo(domain, "vif", dev, "mac");
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if (val != NULL) {
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virBufferVSprintf(buf, " <mac address='%s'/>\n", val);
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free(val);
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}
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val = virDomainGetXMLDeviceInfo(domain, "vif", dev, "script");
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if (val != NULL) {
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virBufferVSprintf(buf, " <script path='%s'/>\n", val);
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free(val);
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}
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virBufferAdd(buf, " </interface>\n", 17);
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}
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free(type);
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return(0);
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}
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/**
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* virDomainGetXMLInterfaces:
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* @domain: a domain object
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* @buf: the output buffer object
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*
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* Extract the interfaces used by the domain and dumps then in the buffer
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*
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* Returns 0 in case of success, -1 in case of failure
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*/
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static int
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virDomainGetXMLInterfaces(virDomainPtr domain, virBufferPtr buf) {
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struct xs_transaction_handle* t;
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int ret = -1;
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unsigned int num, i;
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long id;
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char **list = NULL, *endptr;
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char backend[200];
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virConnectPtr conn;
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conn = domain->conn;
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if ((conn == NULL) || (conn->magic != VIR_CONNECT_MAGIC))
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return(-1);
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t = xs_transaction_start(conn->xshandle);
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if (t == NULL)
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goto done;
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snprintf(backend, 199, "/local/domain/0/backend/vif/%d",
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virDomainGetID(domain));
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backend[199] = 0;
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list = xs_directory(conn->xshandle, t, backend, &num);
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ret = 0;
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if (list == NULL)
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goto done;
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for (i = 0;i < num;i++) {
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id = strtol(list[i], &endptr, 10);
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if ((endptr == list[i]) || (*endptr != 0)) {
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ret = -1;
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goto done;
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}
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virDomainGetXMLInterface(domain, buf, id);
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}
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done:
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if (t != NULL)
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xs_transaction_end(conn->xshandle, t, 0);
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if (list != NULL)
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free(list);
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return(ret);
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}
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/**
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* virDomainGetXMLDesc:
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* @domain: a domain object
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@ -166,6 +388,12 @@ virDomainGetXMLDesc(virDomainPtr domain, int flags) {
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virBufferVSprintf(&buf, "<domain type='xen' id='%d'>\n",
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virDomainGetID(domain));
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virBufferVSprintf(&buf, " <name>%s</name>\n", virDomainGetName(domain));
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virBufferVSprintf(&buf, " <memory>%lu</memory>\n", info.maxMem);
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virBufferVSprintf(&buf, " <vcpu>%d</vcpu>\n", (int) info.nrVirtCpu);
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virBufferAdd(&buf, " <devices>\n", 12);
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virDomainGetXMLDevices(domain, &buf);
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virDomainGetXMLInterfaces(domain, &buf);
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virBufferAdd(&buf, " </devices>\n", 13);
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virBufferAdd(&buf, "</domain>\n", 10);
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buf.content[buf.use] = 0;
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