/**
* Initialize this network driver.
* - The core application configuration must be completed prior calling
* - The driver should not be already initialized (if its the case, a no-op will occur)
* - The pConfig parameter must not be NULL
*
* @param pConfig [in] a pointer to eucanetd system-wide configuration
* @param pGni [in] a pointer to the Global Network Information structure
* @return 0 on success. Integer number on failure.
*/
static int network_driver_init(eucanetdConfig *pConfig, globalNetworkInfo *pGni) {
int rc = 0;
LOGDEBUG("Initializing '%s' network driver.\n", DRIVER_NAME());
// Make sure our given pointer is valid
if (!pConfig) {
LOGERROR("Failure to initialize '%s' networking mode. Invalid configuration parameter provided.\n", DRIVER_NAME());
return (1);
}
// Are we already initialized?
if (IS_INITIALIZED()) {
LOGERROR("Networking '%s' mode already initialized. Skipping!\n", DRIVER_NAME());
return (0);
}
if (!pMidoConfig) {
pMidoConfig = EUCA_ZALLOC_C(1, sizeof (mido_config));
}
pMidoConfig->config = pConfig;
rc = initialize_mido(pMidoConfig, pConfig, pGni);
if (rc) {
LOGERROR("could not initialize mido: please ensure that all required config options for VPCMIDO mode are set\n");
free_mido_config(pMidoConfig);
EUCA_FREE(pMidoConfig);
return (1);
}
// We are now initialized
gInitialized = TRUE;
return (0);
}
//!
//! For MIDONET VPC mode, all is done in this driver API.
//!
//! @param[in] pGni a pointer to the Global Network Information structure
//! @param[in] pLni a pointer to the Local Network Information structure
//!
//! @return EUCANETD_RUN_NO_API or EUCANETD_RUN_ERROR_API
//!
//! @see
//!
//! @pre
//! - Both pGni and pLni must not be NULL
//! - The driver must be initialized prior to calling this API.
//!
//! @post
//!
//! @note
//!
static u32 network_driver_system_scrub(globalNetworkInfo * pGni, lni_t * pLni)
{
int rc = 0;
u32 ret = EUCANETD_RUN_NO_API;
char versionFile[EUCA_MAX_PATH];
LOGINFO("Scrubbing for '%s' network driver.\n", DRIVER_NAME());
bzero(versionFile, EUCA_MAX_PATH);
// Is the driver initialized?
if (!IS_INITIALIZED()) {
LOGERROR("Failed to scub the system for network artifacts. Driver '%s' not initialized.\n", DRIVER_NAME());
return (ret);
}
// Are the global and local network view structures NULL?
if (!pGni || !pLni) {
LOGERROR("Failed to implement security-group artifacts for '%s' network driver. Invalid parameters provided.\n", DRIVER_NAME());
return (ret);
}
// if (PEER_IS_NC(eucanetdPeer)) {
if (pMidoConfig) {
free_mido_config(pMidoConfig);
bzero(pMidoConfig, sizeof(mido_config));
}
rc = initialize_mido(pMidoConfig, config->eucahome, config->flushmode, config->disable_l2_isolation, config->midoeucanetdhost, config->midogwhosts,
config->midopubnw, config->midopubgwip, "169.254.0.0", "17");
if (rc) {
LOGERROR("could not initialize mido config\n");
ret = EUCANETD_RUN_ERROR_API;
} else {
if ((rc = do_midonet_update(pGni, pMidoConfig)) != 0) {
LOGERROR("could not update midonet: check log for details\n");
ret = EUCANETD_RUN_ERROR_API;
} else {
LOGINFO("new Eucalyptus/Midonet networking state sync: updated successfully\n");
snprintf(versionFile, EUCA_MAX_PATH, EUCALYPTUS_RUN_DIR "/global_network_info.version", config->eucahome);
if (!strlen(pGni->version) || (str2file(pGni->version, versionFile, O_CREAT | O_TRUNC | O_WRONLY, 0644, FALSE) != EUCA_OK) ) {
LOGWARN("failed to populate GNI version file '%s': check permissions and disk capacity\n", versionFile);
}
}
}
// }
// return (EUCANETD_RUN_NO_API);
return (ret);
}
/**
* Cleans up the network driver. This will work even if the initial initialization
* fail for any reasons. This will reset anything that could have been half-way or
* fully configured. If forceFlush is set, then a network flush will be performed.
* @param pConfig [in] a pointer to eucanetd system-wide configuration
* @param pGni [in] a pointer to the Global Network Information structure
* @param forceFlush [in] set to TRUE if a network flush needs to be performed
* @return 0 on success. Integer number on failure.
*/
static int network_driver_cleanup(eucanetdConfig *pConfig, globalNetworkInfo *pGni, boolean forceFlush) {
int ret = 0;
LOGINFO("Cleaning up '%s' network driver.\n", DRIVER_NAME());
if (forceFlush) {
if (network_driver_system_flush(pConfig, pGni)) {
LOGERROR("Fail to flush network artifacts during network driver cleanup. See above log errors for details.\n");
ret = 1;
}
}
midonet_api_cleanup();
free_mido_config(pMidoConfig);
EUCA_FREE(pMidoConfig);
gInitialized = FALSE;
return (ret);
}
//!
//! For MIDONET VPC mode, all is done in this driver API.
//!
//! @param[in] pGni a pointer to the Global Network Information structure
//! @param[in] pLni a pointer to the Local Network Information structure
//!
//! @return EUCANETD_RUN_NO_API or EUCANETD_RUN_ERROR_API
//!
//! @see
//!
//! @pre
//! - Both pGni and pLni must not be NULL
//! - The driver must be initialized prior to calling this API.
//!
//! @post
//!
//! @note
//!
static u32 network_driver_system_scrub(globalNetworkInfo * pGni, lni_t * pLni)
{
int rc = 0;
u32 ret = EUCANETD_RUN_NO_API;
LOGINFO("Scrubbing for '%s' network driver.\n", DRIVER_NAME());
// Is the driver initialized?
if (!IS_INITIALIZED()) {
LOGERROR("Failed to scub the system for network artifacts. Driver '%s' not initialized.\n", DRIVER_NAME());
return (EUCANETD_RUN_NO_API);
}
// Are the global and local network view structures NULL?
if (!pGni || !pLni) {
LOGERROR("Failed to implement security-group artifacts for '%s' network driver. Invalid parameters provided.\n", DRIVER_NAME());
return (EUCANETD_RUN_NO_API);
}
// if (PEER_IS_NC(eucanetdPeer)) {
if (pMidoConfig) {
free_mido_config(pMidoConfig);
bzero(pMidoConfig, sizeof(mido_config));
}
rc = initialize_mido(pMidoConfig, config->eucahome, config->midosetupcore, config->midoeucanetdhost, config->midogwhost, config->midogwip, config->midogwiface,
config->midopubnw, config->midopubgwip, "169.254.0.0", "17");
if (rc) {
LOGERROR("could not initialize mido config\n");
ret = EUCANETD_RUN_ERROR_API;
} else {
if ((rc = do_midonet_update(pGni, pMidoConfig)) != 0) {
LOGERROR("could not update midonet: check log for details\n");
ret = EUCANETD_RUN_ERROR_API;
} else {
LOGINFO("new Eucalyptus/Midonet networking state sync: updated successfully\n");
}
}
// }
return (EUCANETD_RUN_NO_API);
}
//!
//! For MIDONET VPC mode, all is done in this driver API.
//!
//! @param[in] pGni a pointer to the Global Network Information structure
//! @param[in] pLni a pointer to the Local Network Information structure
//!
//! @return EUCANETD_RUN_NO_API or EUCANETD_RUN_ERROR_API
//!
//! @see
//!
//! @pre
//! - Both pGni and pLni must not be NULL
//! - The driver must be initialized prior to calling this API.
//!
//! @post
//!
//! @note
//!
static u32 network_driver_system_scrub(globalNetworkInfo *pGni, globalNetworkInfo *pGniApplied, lni_t *pLni)
{
int rc = 0;
u32 ret = EUCANETD_RUN_NO_API;
char versionFile[EUCA_MAX_PATH];
int check_tz_attempts = 30;
struct timeval tv;
eucanetd_timer(&tv);
// Make sure midoname buffer is available
midonet_api_cache_midos_init();
if (!gTunnelZoneOk) {
LOGDEBUG("Checking MidoNet tunnel-zone.\n");
rc = 1;
}
while (!gTunnelZoneOk) {
// Check tunnel-zone
rc = check_mido_tunnelzone();
if (rc) {
if ((--check_tz_attempts) > 0) {
sleep(3);
} else {
LOGERROR("Cannot proceed without a valid tunnel-zone.\n");
return (EUCANETD_RUN_ERROR_API);
}
} else {
gTunnelZoneOk = TRUE;
}
}
bzero(versionFile, EUCA_MAX_PATH);
// Need a valid global network view
if (!pGni) {
LOGERROR("Failed to scrub the system for '%s' network driver. Invalid parameters provided.\n", DRIVER_NAME());
return (ret);
}
if (!IS_INITIALIZED() || (pGni && pGniApplied && cmp_gni_vpcmido_config(pGni, pGniApplied))) {
LOGINFO("(re)initializing %s driver.\n", DRIVER_NAME());
if (pMidoConfig) {
eucanetdConfig *configbak = pMidoConfig->config;
free_mido_config(pMidoConfig);
pMidoConfig->config = configbak;
} else {
LOGERROR("failed to (re)initialize config options: VPCMIDO driver not initialized\n");
return (EUCANETD_RUN_ERROR_API);
}
//rc = initialize_mido(pMidoConfig, config->eucahome, config->flushmode,
// config->disable_l2_isolation, config->midoeucanetdhost, config->midogwhosts,
// config->midopubnw, config->midopubgwip, "169.254.0.0", "17");
rc = initialize_mido(pMidoConfig, pMidoConfig->config, "169.254.0.0", "17");
if (rc) {
LOGERROR("failed to (re)initialize config options\n");
return (EUCANETD_RUN_ERROR_API);
}
pGniApplied = NULL;
}
LOGTRACE("euca VPCMIDO system state: %s\n", midonet_api_system_changed == 0 ? "CLEAN" : "DIRTY");
rc = do_midonet_update(pGni, pGniApplied, pMidoConfig);
if (rc != 0) {
LOGERROR("failed to update midonet: check log for details\n");
if (rc < 0) {
// Accept errors in instances/interface implementation.
ret = EUCANETD_VPCMIDO_IFERROR;
} else {
ret = EUCANETD_RUN_ERROR_API;
}
} else {
LOGTRACE("Networking state sync: updated successfully in %.2f ms\n", eucanetd_timer_usec(&tv) / 1000.0);
}
return (ret);
}
//!
//! Responsible for flushing any networking artifacts implemented by this
//! network driver.
//!
//! @param[in] pGni a pointer to the Global Network Information structure
//!
//! @return 0 on success or 1 if any failure occurred.
//!
//! @see
//!
//! @pre
//! The driver must be initialized already
//!
//! @post
//! On success, all networking mode artifacts will be flushed from the system. If any
//! failure occurred, the system is left in a non-deterministic state and a subsequent
//! call to this API may resolve the remaining issues.
//!
static int network_driver_system_flush(globalNetworkInfo *pGni)
{
int rc = 0;
int ret = 0;
// Is our driver initialized?
if (!IS_INITIALIZED()) {
LOGERROR("Failed to flush the networking artifacts for '%s' network driver. Driver not initialized.\n", DRIVER_NAME());
return (1);
}
if (pMidoConfig->config->flushmode) {
switch(pMidoConfig->config->flushmode) {
case FLUSH_MIDO_DYNAMIC:
LOGINFO("Flushing objects in MidoNet (keep the core intact)\n");
rc = do_midonet_teardown(pMidoConfig);
if (rc) {
ret = 1;
}
break;
case FLUSH_MIDO_ALL:
LOGINFO("Flush all objects in MidoNet\n");
rc = do_midonet_teardown(pMidoConfig);
if (rc) {
ret = 1;
}
break;
case FLUSH_MIDO_CHECKDUPS:
LOGINFO("Check for duplicate objects in MidoNet\n");
rc = do_midonet_delete_dups(pMidoConfig, TRUE);
if (rc) {
ret = 1;
}
break;
case FLUSH_MIDO_DUPS:
LOGINFO("Flush duplicate objects in MidoNet\n");
rc = do_midonet_delete_dups(pMidoConfig, FALSE);
if (rc) {
ret = 1;
}
break;
case FLUSH_MIDO_CHECKUNCONNECTED:
LOGINFO("Check for unconnected objects in MidoNet\n");
rc = do_midonet_delete_vpc_object(pMidoConfig, "unconnected", TRUE);
if (rc) {
ret = 1;
}
break;
case FLUSH_MIDO_UNCONNECTED:
LOGINFO("Flush unconnected objects in MidoNet\n");
rc = do_midonet_delete_vpc_object(pMidoConfig, "unconnected", FALSE);
if (rc) {
ret = 1;
}
break;
case FLUSH_MIDO_CHECKVPC:
LOGINFO("Check %s health in MidoNet\n", pMidoConfig->config->flushmodearg);
rc = do_midonet_delete_vpc_object(pMidoConfig, pMidoConfig->config->flushmodearg, TRUE);
if (rc) {
ret = 1;
}
break;
case FLUSH_MIDO_VPC:
rc = do_midonet_delete_vpc_object(pMidoConfig, pMidoConfig->config->flushmodearg, FALSE);
if (rc) {
ret = 1;
}
break;
case FLUSH_MIDO_LISTVPC:
rc = do_midonet_delete_vpc_object(pMidoConfig, "list", TRUE);
if (rc) {
ret = 1;
}
break;
case FLUSH_MIDO_TEST:
do_midonet_delete_vpc_object(pMidoConfig, "test", TRUE);
break;
case FLUSH_NONE:
default:
LOGERROR("check for eucanetd bug: should never reach this point.\n");
break;
}
free_mido_config(pMidoConfig);
EUCA_FREE(pMidoConfig);
pMidoConfig = NULL;
gInitialized = FALSE;
}
return (ret);
}
/**
* This API checks the new GNI against the system view to decide what really
* needs to be done.
* For MIDONET VPC mode, all is done in this driver API.
* @param pConfig [in] a pointer to eucanetd system-wide configuration
* @param pGni [in] a pointer to the Global Network Information structure
* @param pGniApplied [in] a pointer to the previously successfully implemented GNI
* @return A bitmask indicating what needs to be done. The following bits are
* the ones to look for: EUCANETD_RUN_NETWORK_API, EUCANETD_RUN_SECURITY_GROUP_API
* and EUCANETD_RUN_ADDRESSING_API.
*/
static u32 network_driver_system_scrub(eucanetdConfig *pConfig, globalNetworkInfo *pGni, globalNetworkInfo *pGniApplied) {
int rc = 0;
u32 ret = EUCANETD_RUN_NO_API;
struct timeval tv;
eucanetd_timer(&tv);
// Make sure midoname buffer is available
midonet_api_cache_midos_init();
// Need a valid global network view
if (!pConfig || !pGni) {
LOGERROR("Failed to scrub the system for '%s' network driver. Invalid parameters provided.\n", DRIVER_NAME());
return (ret);
}
int config_changed = cmp_gni_config(pGni, pGniApplied);
if (!IS_INITIALIZED() || (pGni && config_changed)) {
LOGINFO("(re)initializing %s driver.\n", DRIVER_NAME());
if (pMidoConfig) {
free_mido_config(pMidoConfig);
gInitialized = FALSE;
} else {
LOGERROR("failed to (re)initialize config options: VPCMIDO driver not initialized\n");
return (EUCANETD_RUN_ERROR_API);
}
rc = network_driver_init(pConfig, pGni);
if (rc) {
LOGERROR("failed to (re)initialize config options\n");
return (EUCANETD_RUN_ERROR_API);
}
pGniApplied = NULL;
}
if (config_changed & GNI_CONFIG_DIFF_MIDONODES) {
pMidoConfig->midotz_ok = FALSE;
}
LOGTRACE("euca VPCMIDO system state: %s\n", midonet_api_system_changed == 0 ? "CLEAN" : "DIRTY");
rc = do_midonet_update(pGni, pGniApplied, pMidoConfig);
if (rc != 0) {
LOGERROR("failed to update midonet: check log for details\n");
switch (rc) {
case -2:
// Accept errors in instances/interface implementation.
ret = EUCANETD_VPCMIDO_IFERROR;
break;
case -1:
// Accept errors in gateway(s) implementation.
ret = EUCANETD_VPCMIDO_GWERROR;
break;
default:
ret = EUCANETD_RUN_ERROR_API;
}
} else {
LOGTRACE("Networking state sync: updated successfully in %.2f ms\n", eucanetd_timer_usec(&tv) / 1000.0);
pMidoConfig->config->mido_arptable_config_changed = FALSE;
}
return (ret);
}
