[libvirt] [PATCHv6] PHYP: Adding network interface
Eduardo Otubo
otubo at linux.vnet.ibm.com
Mon Mar 28 20:07:20 UTC 2011
This is the implementation of the previous patch now using virInterface*
API. Ended up this patch got much more simpler, smaller and easier to
review. Here is some details:
* MAC size and interface name are fixed due to specifications on HMC,
both are created automatically and CAN'T be specified from user. They
have the following format:
* MAC: 122980003002
* Interface name: U9124.720.067BE8B-V3-C0
* I did replaced all the |grep|sed following the comments Eric Blake
did on the last patch.
* According to my last email, It's not possible to create a network
interface without assigning it to a specific lpar. Then, I am using
this very minimalistic XML file for testing:
<interface type='ethernet' name='LPAR01'>
</interface>
In this file I am using "name" as the lpar name which I am going to
assign the new network interface. I couldn't find a better way to
refer to it. Comments are welcome.
* Regarding the fact I am sleeping one second waiting for the HMC to
complete creation of the interface, I don't have means to check
if the whole process is done. All I do is execute a command, wait
until is complete (which is not enough in this case) check
the return and the exit status. The process of actually creating
a networking interface seems to take a little longer than just the
return of the ssh control.
---
src/phyp/phyp_driver.c | 583 ++++++++++++++++++++++++++++++++++++++++++++++--
1 files changed, 564 insertions(+), 19 deletions(-)
diff --git a/src/phyp/phyp_driver.c b/src/phyp/phyp_driver.c
index 51f9ff6..b8e7b2f 100644
--- a/src/phyp/phyp_driver.c
+++ b/src/phyp/phyp_driver.c
@@ -59,6 +59,7 @@
#include "storage_conf.h"
#include "nodeinfo.h"
#include "files.h"
+#include "interface_conf.h"
#include "phyp_driver.h"
@@ -74,6 +75,8 @@
static unsigned const int HMC = 0;
static unsigned const int IVM = 127;
+static unsigned const int PHYP_IFACENAME_SIZE = 24;
+static unsigned const int PHYP_MAC_SIZE= 12;
static int
waitsocket(int socket_fd, LIBSSH2_SESSION * session)
@@ -3273,6 +3276,552 @@ phypGetStoragePoolXMLDesc(virStoragePoolPtr pool, unsigned int flags)
}
static int
+phypInterfaceDestroy(virInterfacePtr iface,
+ unsigned int flags)
+{
+ virCheckFlags(0, -1);
+
+ ConnectionData *connection_data = iface->conn->networkPrivateData;
+ phyp_driverPtr phyp_driver = iface->conn->privateData;
+ LIBSSH2_SESSION *session = connection_data->session;
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ char *managed_system = phyp_driver->managed_system;
+ int system_type = phyp_driver->system_type;
+ int exit_status = 0;
+ int slot_num = 0;
+ int lpar_id = 0;
+ char *char_ptr;
+ char *cmd = NULL;
+ char *ret = NULL;
+
+ /* Getting the remote slot number */
+
+ virBufferAddLit(&buf, "lshwres ");
+ if (system_type == HMC)
+ virBufferVSprintf(&buf, "-m %s ", managed_system);
+
+ virBufferVSprintf(&buf,
+ " -r virtualio --rsubtype eth --level lpar "
+ " -F mac_addr,slot_num|"
+ " sed -n '/%s/ s/^.*,//p'", iface->mac);
+
+ if (virBufferError(&buf)) {
+ virBufferFreeAndReset(&buf);
+ virReportOOMError();
+ goto err;
+ }
+ cmd = virBufferContentAndReset(&buf);
+
+ ret = phypExec(session, cmd, &exit_status, iface->conn);
+
+ if (exit_status < 0 || ret == NULL)
+ goto err;
+
+ if (virStrToLong_i(ret, &char_ptr, 10, &slot_num) == -1)
+ goto err;
+
+ /* Getting the remote slot number */
+ VIR_FREE(cmd);
+ VIR_FREE(ret);
+
+ virBufferAddLit(&buf, "lshwres ");
+ if (system_type == HMC)
+ virBufferVSprintf(&buf, "-m %s ", managed_system);
+
+ virBufferVSprintf(&buf,
+ " -r virtualio --rsubtype eth --level lpar "
+ " -F mac_addr,lpar_id|"
+ " sed -n '/%s/ s/^.*,//p'", iface->mac);
+
+ if (virBufferError(&buf)) {
+ virBufferFreeAndReset(&buf);
+ virReportOOMError();
+ goto err;
+ }
+ cmd = virBufferContentAndReset(&buf);
+
+ VIR_FREE(ret);
+
+ ret = phypExec(session, cmd, &exit_status, iface->conn);
+
+ if (exit_status < 0 || ret == NULL)
+ goto err;
+
+ if (virStrToLong_i(ret, &char_ptr, 10, &lpar_id) == -1)
+ goto err;
+
+ /* excluding interface */
+ VIR_FREE(cmd);
+ VIR_FREE(ret);
+
+ virBufferAddLit(&buf, "chhwres ");
+ if (system_type == HMC)
+ virBufferVSprintf(&buf, "-m %s ", managed_system);
+
+ virBufferVSprintf(&buf,
+ " -r virtualio --rsubtype eth"
+ " --id %d -o r -s %d", lpar_id, slot_num);
+
+ if (virBufferError(&buf)) {
+ virBufferFreeAndReset(&buf);
+ virReportOOMError();
+ return -1;
+ }
+ cmd = virBufferContentAndReset(&buf);
+
+ VIR_FREE(ret);
+
+ ret = phypExec(session, cmd, &exit_status, iface->conn);
+
+ if (exit_status < 0 || ret != NULL)
+ goto err;
+
+ VIR_FREE(cmd);
+ VIR_FREE(ret);
+ return 0;
+
+ err:
+ VIR_FREE(cmd);
+ VIR_FREE(ret);
+ return -1;
+}
+
+static virInterfacePtr
+phypInterfaceDefineXML(virConnectPtr conn, const char *xml,
+ unsigned int flags)
+{
+ virCheckFlags(0, NULL);
+
+ ConnectionData *connection_data = conn->networkPrivateData;
+ phyp_driverPtr phyp_driver = conn->privateData;
+ LIBSSH2_SESSION *session = connection_data->session;
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ char *managed_system = phyp_driver->managed_system;
+ int system_type = phyp_driver->system_type;
+ int exit_status = 0;
+ char *char_ptr;
+ char *cmd = NULL;
+ int slot = 0;
+ char *ret = NULL;
+ char name[PHYP_IFACENAME_SIZE];
+ char mac[PHYP_MAC_SIZE];
+ virInterfaceDefPtr def;
+
+ if (!(def = virInterfaceDefParseString(xml)))
+ goto err;
+
+ /* Now need to get the next free slot number */
+ virBufferAddLit(&buf, "lshwres ");
+ if (system_type == HMC)
+ virBufferVSprintf(&buf, "-m %s ", managed_system);
+
+ virBufferVSprintf(&buf,
+ " -r virtualio --rsubtype slot --level slot"
+ " -Fslot_num --filter lpar_names=%s"
+ " |sort|tail -n 1", def->name);
+
+ if (virBufferError(&buf)) {
+ virBufferFreeAndReset(&buf);
+ virReportOOMError();
+ goto err;
+ }
+ cmd = virBufferContentAndReset(&buf);
+
+ ret = phypExec(session, cmd, &exit_status, conn);
+
+ if (exit_status < 0 || ret == NULL)
+ goto err;
+
+ if (virStrToLong_i(ret, &char_ptr, 10, &slot) == -1)
+ goto err;
+
+ /* The next free slot itself: */
+ slot++;
+
+ /* Now adding the new network interface */
+ virBufferAddLit(&buf, "chhwres ");
+ if (system_type == HMC)
+ virBufferVSprintf(&buf, "-m %s ", managed_system);
+
+ virBufferVSprintf(&buf,
+ " -r virtualio --rsubtype eth"
+ " -p %s -o a -s %d -a port_vlan_id=1,"
+ "ieee_virtual_eth=0", def->name, slot);
+
+ if (virBufferError(&buf)) {
+ virBufferFreeAndReset(&buf);
+ virReportOOMError();
+ goto err;
+ }
+ cmd = virBufferContentAndReset(&buf);
+
+ VIR_FREE(ret);
+
+ ret = phypExec(session, cmd, &exit_status, conn);
+
+ if (exit_status < 0 || ret != NULL)
+ goto err;
+
+ /* Need to sleep a little while to wait for the HMC to
+ * complete the execution of the command.
+ * */
+ sleep(1);
+
+ /* Getting the new interface name */
+ virBufferAddLit(&buf, "lshwres ");
+ if (system_type == HMC)
+ virBufferVSprintf(&buf, "-m %s ", managed_system);
+
+ virBufferVSprintf(&buf,
+ " -r virtualio --rsubtype slot --level slot"
+ " |sed '/lpar_name=%s/!d; /slot_num=%d/!d; "
+ "s/^.*drc_name=//'", def->name, slot);
+
+ if (virBufferError(&buf)) {
+ virBufferFreeAndReset(&buf);
+ virReportOOMError();
+ goto err;
+ }
+ cmd = virBufferContentAndReset(&buf);
+
+ VIR_FREE(ret);
+
+ ret = phypExec(session, cmd, &exit_status, conn);
+
+ if (exit_status < 0 || ret == NULL) {
+ /* roll back and excluding interface if error*/
+ VIR_FREE(cmd);
+ VIR_FREE(ret);
+
+ virBufferAddLit(&buf, "chhwres ");
+ if (system_type == HMC)
+ virBufferVSprintf(&buf, "-m %s ", managed_system);
+
+ virBufferVSprintf(&buf,
+ " -r virtualio --rsubtype eth"
+ " -p %s -o r -s %d", def->name, slot);
+
+ if (virBufferError(&buf)) {
+ virBufferFreeAndReset(&buf);
+ virReportOOMError();
+ goto err;
+ }
+ goto err;
+ }
+
+ memcpy(name, ret, PHYP_IFACENAME_SIZE-1);
+
+ /* Getting the new interface mac addr */
+ virBufferAddLit(&buf, "lshwres ");
+ if (system_type == HMC)
+ virBufferVSprintf(&buf, "-m %s ", managed_system);
+
+ virBufferVSprintf(&buf,
+ "-r virtualio --rsubtype eth --level lpar "
+ " |sed '/lpar_name=%s/!d; /slot_num=%d/!d; "
+ "s/^.*mac_addr=//'", def->name, slot);
+
+ if (virBufferError(&buf)) {
+ virBufferFreeAndReset(&buf);
+ virReportOOMError();
+ goto err;
+ }
+ cmd = virBufferContentAndReset(&buf);
+
+ VIR_FREE(ret);
+
+ ret = phypExec(session, cmd, &exit_status, conn);
+
+ if (exit_status < 0 || ret == NULL)
+ goto err;
+
+ memcpy(mac, ret, PHYP_MAC_SIZE-1);
+
+ VIR_FREE(cmd);
+ VIR_FREE(ret);
+ return virGetInterface(conn, name, mac);
+
+ err:
+ VIR_FREE(cmd);
+ VIR_FREE(ret);
+ return NULL;
+}
+
+static virInterfacePtr
+phypInterfaceLookupByName(virConnectPtr conn, const char *name)
+{
+ ConnectionData *connection_data = conn->networkPrivateData;
+ phyp_driverPtr phyp_driver = conn->privateData;
+ LIBSSH2_SESSION *session = connection_data->session;
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ char *managed_system = phyp_driver->managed_system;
+ int system_type = phyp_driver->system_type;
+ int exit_status = 0;
+ char *char_ptr;
+ char *cmd = NULL;
+ char *ret = NULL;
+ int slot = 0;
+ int lpar_id = 0;
+ char mac[PHYP_MAC_SIZE];
+
+ /*Getting the slot number for the interface */
+ virBufferAddLit(&buf, "lshwres ");
+ if (system_type == HMC)
+ virBufferVSprintf(&buf, "-m %s ", managed_system);
+
+ virBufferVSprintf(&buf,
+ " -r virtualio --rsubtype slot --level slot "
+ " -F drc_name,slot_num |"
+ " sed -n '/%s/ s/^.*,//p'", name);
+
+ if (virBufferError(&buf)) {
+ virBufferFreeAndReset(&buf);
+ virReportOOMError();
+ return NULL;
+ }
+ cmd = virBufferContentAndReset(&buf);
+
+ ret = phypExec(session, cmd, &exit_status, conn);
+
+ if (exit_status < 0 || ret == NULL)
+ goto err;
+
+ if (virStrToLong_i(ret, &char_ptr, 10, &slot) == -1)
+ goto err;
+
+ /*Getting the lpar_id for the interface */
+ virBufferAddLit(&buf, "lshwres ");
+ if (system_type == HMC)
+ virBufferVSprintf(&buf, "-m %s ", managed_system);
+
+ virBufferVSprintf(&buf,
+ " -r virtualio --rsubtype slot --level slot "
+ " -F drc_name,lpar_id |"
+ " sed -n '/%s/ s/^.*,//p'", name);
+
+ if (virBufferError(&buf)) {
+ virBufferFreeAndReset(&buf);
+ virReportOOMError();
+ return NULL;
+ }
+ cmd = virBufferContentAndReset(&buf);
+
+ VIR_FREE(ret);
+
+ ret = phypExec(session, cmd, &exit_status, conn);
+
+ if (exit_status < 0 || ret == NULL)
+ goto err;
+
+ if (virStrToLong_i(ret, &char_ptr, 10, &lpar_id) == -1)
+ goto err;
+
+ /*Getting the interface mac */
+ virBufferAddLit(&buf, "lshwres ");
+ if (system_type == HMC)
+ virBufferVSprintf(&buf, "-m %s ", managed_system);
+
+ virBufferVSprintf(&buf,
+ " -r virtualio --rsubtype eth --level lpar "
+ " -F lpar_id,slot_num,mac_addr|"
+ " sed -n '/%d,%d/ s/^.*,//p'", lpar_id, slot);
+
+ if (virBufferError(&buf)) {
+ virBufferFreeAndReset(&buf);
+ virReportOOMError();
+ return NULL;
+ }
+ cmd = virBufferContentAndReset(&buf);
+
+ VIR_FREE(ret);
+
+ ret = phypExec(session, cmd, &exit_status, conn);
+
+ if (exit_status < 0 || ret == NULL)
+ goto err;
+
+ memcpy(mac, ret, PHYP_MAC_SIZE-1);
+
+ virInterfacePtr result = virGetInterface(conn, name, ret);
+
+ VIR_FREE(cmd);
+ VIR_FREE(ret);
+ return result;
+
+ err:
+ VIR_FREE(cmd);
+ VIR_FREE(ret);
+ return NULL;
+
+}
+
+static int
+phypInterfaceIsActive(virInterfacePtr iface)
+{
+ ConnectionData *connection_data = iface->conn->networkPrivateData;
+ phyp_driverPtr phyp_driver = iface->conn->privateData;
+ LIBSSH2_SESSION *session = connection_data->session;
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ char *managed_system = phyp_driver->managed_system;
+ int system_type = phyp_driver->system_type;
+ int exit_status = 0;
+ int state = 0;
+ char *char_ptr;
+ char *cmd = NULL;
+ char *ret = NULL;
+
+ virBufferAddLit(&buf, "lshwres ");
+ if (system_type == HMC)
+ virBufferVSprintf(&buf, "-m %s ", managed_system);
+
+ virBufferVSprintf(&buf,
+ " -r virtualio --rsubtype eth --level lpar "
+ " -F mac_addr,state |"
+ " sed -n '/%s/ s/^.*,//p'", iface->mac);
+
+ if (virBufferError(&buf)) {
+ virBufferFreeAndReset(&buf);
+ virReportOOMError();
+ return -1;
+ }
+ cmd = virBufferContentAndReset(&buf);
+
+ ret = phypExec(session, cmd, &exit_status, iface->conn);
+
+ if (exit_status < 0 || ret == NULL)
+ goto err;
+
+ if (virStrToLong_i(ret, &char_ptr, 10, &state) == -1)
+ goto err;
+
+ VIR_FREE(cmd);
+ VIR_FREE(ret);
+ return state;
+
+ err:
+ VIR_FREE(cmd);
+ VIR_FREE(ret);
+ return -1;
+
+}
+
+static int
+phypListInterfaces(virConnectPtr conn, char **const names, int nnames)
+{
+ ConnectionData *connection_data = conn->networkPrivateData;
+ phyp_driverPtr phyp_driver = conn->privateData;
+ LIBSSH2_SESSION *session = connection_data->session;
+ int system_type = phyp_driver->system_type;
+ char *managed_system = phyp_driver->managed_system;
+ int vios_id = phyp_driver->vios_id;
+ int exit_status = 0;
+ int got = 0;
+ int i;
+ char *cmd = NULL;
+ char *ret = NULL;
+ char *networks = NULL;
+ char *char_ptr2 = NULL;
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+
+ virBufferAddLit(&buf, "lshwres");
+ if (system_type == HMC)
+ virBufferVSprintf(&buf, " -m %s", managed_system);
+ virBufferVSprintf(&buf, " -r virtualio --rsubtype slot --level slot|"
+ " sed '/eth/!d; /lpar_id=%d/d; s/^.*drc_name=//g'",
+ vios_id);
+ if (virBufferError(&buf)) {
+ virBufferFreeAndReset(&buf);
+ virReportOOMError();
+ goto err;
+ }
+ cmd = virBufferContentAndReset(&buf);
+
+ ret = phypExec(session, cmd, &exit_status, conn);
+
+ /* I need to parse the textual return in order to get the network interfaces */
+ if (exit_status < 0 || ret == NULL)
+ goto err;
+
+ networks = ret;
+
+ while (got < nnames) {
+ char_ptr2 = strchr(networks, '\n');
+
+ if (char_ptr2) {
+ *char_ptr2 = '\0';
+ if ((names[got++] = strdup(networks)) == NULL) {
+ virReportOOMError();
+ goto err;
+ }
+ char_ptr2++;
+ networks = char_ptr2;
+ } else
+ break;
+ }
+
+ VIR_FREE(cmd);
+ VIR_FREE(ret);
+ return got;
+
+ err:
+ for (i = 0; i < got; i++)
+ VIR_FREE(names[i]);
+ VIR_FREE(cmd);
+ VIR_FREE(ret);
+ return -1;
+}
+
+static int
+phypNumOfInterfaces(virConnectPtr conn)
+{
+ ConnectionData *connection_data = conn->networkPrivateData;
+ phyp_driverPtr phyp_driver = conn->privateData;
+ LIBSSH2_SESSION *session = connection_data->session;
+ char *managed_system = phyp_driver->managed_system;
+ int system_type = phyp_driver->system_type;
+ int vios_id = phyp_driver->vios_id;
+ int exit_status = 0;
+ int nnets = 0;
+ char *char_ptr;
+ char *cmd = NULL;
+ char *ret = NULL;
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+
+ virBufferAddLit(&buf, "lshwres ");
+ if (system_type == HMC)
+ virBufferVSprintf(&buf, "-m %s ", managed_system);
+
+ virBufferVSprintf(&buf,
+ "-r virtualio --rsubtype eth --level lpar|"
+ "grep -v lpar_id=%d|grep -c lpar_name", vios_id);
+
+ if (virBufferError(&buf)) {
+ virBufferFreeAndReset(&buf);
+ virReportOOMError();
+ return -1;
+ }
+ cmd = virBufferContentAndReset(&buf);
+
+ ret = phypExec(session, cmd, &exit_status, conn);
+
+ if (exit_status < 0 || ret == NULL)
+ goto err;
+
+ if (virStrToLong_i(ret, &char_ptr, 10, &nnets) == -1)
+ goto err;
+
+ VIR_FREE(cmd);
+ VIR_FREE(ret);
+ return nnets;
+
+ err:
+ VIR_FREE(cmd);
+ VIR_FREE(ret);
+ return -1;
+
+}
+
+static int
phypGetLparState(virConnectPtr conn, unsigned int lpar_id)
{
ConnectionData *connection_data = conn->networkPrivateData;
@@ -3795,6 +4344,7 @@ static virDomainPtr
phypDomainCreateAndStart(virConnectPtr conn,
const char *xml, unsigned int flags)
{
+ virCheckFlags(0, NULL);
ConnectionData *connection_data = conn->networkPrivateData;
LIBSSH2_SESSION *session = connection_data->session;
@@ -4098,27 +4648,22 @@ static virStorageDriver phypStorageDriver = {
.poolIsPersistent = NULL
};
-static virNetworkDriver phypNetworkDriver = {
+static virInterfaceDriver phypInterfaceDriver = {
.name = "PHYP",
.open = phypVIOSDriverOpen,
.close = phypVIOSDriverClose,
- .numOfNetworks = NULL,
- .listNetworks = NULL,
- .numOfDefinedNetworks = NULL,
- .listDefinedNetworks = NULL,
- .networkLookupByUUID = NULL,
- .networkLookupByName = NULL,
- .networkCreateXML = NULL,
- .networkDefineXML = NULL,
- .networkUndefine = NULL,
- .networkCreate = NULL,
- .networkDestroy = NULL,
- .networkDumpXML = NULL,
- .networkGetBridgeName = NULL,
- .networkGetAutostart = NULL,
- .networkSetAutostart = NULL,
- .networkIsActive = NULL,
- .networkIsPersistent = NULL
+ .numOfInterfaces = phypNumOfInterfaces,
+ .listInterfaces = phypListInterfaces,
+ .numOfDefinedInterfaces = NULL,
+ .listDefinedInterfaces = NULL,
+ .interfaceLookupByName = phypInterfaceLookupByName,
+ .interfaceLookupByMACString = NULL,
+ .interfaceGetXMLDesc = NULL,
+ .interfaceDefineXML = phypInterfaceDefineXML,
+ .interfaceUndefine = NULL,
+ .interfaceCreate = NULL,
+ .interfaceDestroy = phypInterfaceDestroy,
+ .interfaceIsActive = phypInterfaceIsActive
};
int
@@ -4128,7 +4673,7 @@ phypRegister(void)
return -1;
if (virRegisterStorageDriver(&phypStorageDriver) < 0)
return -1;
- if (virRegisterNetworkDriver(&phypNetworkDriver) < 0)
+ if (virRegisterInterfaceDriver(&phypInterfaceDriver) < 0)
return -1;
return 0;
--
1.7.1
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