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euca_gni.c
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// -*- mode: C; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: nil -*-
// vim: set softtabstop=4 shiftwidth=4 tabstop=4 expandtab:
/*************************************************************************
* Copyright 2016 Ent. Services Development Corporation LP
*
* Redistribution and use of this software in source and binary forms,
* with or without modification, are permitted provided that the
* following conditions are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
************************************************************************/
//!
//! @file net/euca_gni.c
//! Implementation of the global network interface
//!
/*----------------------------------------------------------------------------*\
| |
| INCLUDES |
| |
\*----------------------------------------------------------------------------*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <stdarg.h>
#include <sys/types.h>
#include <dirent.h>
#include <linux/limits.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <ifaddrs.h>
#include <eucalyptus.h>
#include <misc.h>
#include <hash.h>
#include <euca_string.h>
#include <euca_network.h>
#include <atomic_file.h>
#include "ipt_handler.h"
#include "ips_handler.h"
#include "ebt_handler.h"
#include "dev_handler.h"
#include "euca_gni.h"
#include "eucanetd_util.h"
/*----------------------------------------------------------------------------*\
| |
| DEFINES |
| |
\*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*\
| |
| TYPEDEFS |
| |
\*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*\
| |
| ENUMERATIONS |
| |
\*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*\
| |
| STRUCTURES |
| |
\*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*\
| |
| EXTERNAL VARIABLES |
| |
\*----------------------------------------------------------------------------*/
/* Should preferably be handled in header file */
/*----------------------------------------------------------------------------*\
| |
| GLOBAL VARIABLES |
| |
\*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*\
| |
| STATIC VARIABLES |
| |
\*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*\
| |
| STATIC PROTOTYPES |
| |
\*----------------------------------------------------------------------------*/
#define TCP_PROTOCOL_NUMBER 6
#define UDP_PROTOCOL_NUMBER 17
#define ICMP_PROTOCOL_NUMBER 1
static boolean xml_initialized = FALSE; //!< To determine if the XML library has been initialized
#ifndef XML_INIT // if compiling as a stand-alone binary (for unit testing)
#define XML_INIT() if (!xml_initialized) { xmlInitParser(); xml_initialized = TRUE; }
#endif
/*----------------------------------------------------------------------------*\
| |
| MACROS |
| |
\*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*\
| |
| IMPLEMENTATION |
| |
\*----------------------------------------------------------------------------*/
/**
* Creates a unique IP table chain name for a given security group. This name, if successful
* will have the form of EU_[hash] where [hash] is the 64 bit encoding of the resulting
* "[account id]-[group name]" string from the given security group information.
*
* @param gni [in] a pointer to the global network information structure
* @param secgroup [in] a pointer to the security group for which we compute the chain name
* @param outchainname [out] a pointer to the string that will contain the computed name
*
* @return 0 on success or 1 on failure
*
* @pre
* The outchainname parameter Must not be NULL but it should point to a NULL value. If
* this does not point to NULL, the memory will be lost when replaced with the out value.
*
* @post
* On success, the outchainname will point to the resulting string. If a failure occur, any
* value pointed by outchainname is non-deterministic.
*
* @note
* Chain name deprecated since Eucalyptus 4.4
*/
int gni_secgroup_get_chainname(globalNetworkInfo *gni, gni_secgroup *secgroup, char **outchainname) {
char hashtok[16 + 128 + 1];
char chainname[48];
char *chainhash = NULL;
if (!gni || !secgroup || !outchainname) {
LOGWARN("invalid argument: cannot get chainname from NULL\n");
return (1);
}
snprintf(hashtok, OWNER_ID_LEN + SECURITY_GROUP_ID_LEN + 1, "%s-%s", secgroup->accountId, secgroup->name);
hash_b64enc_string(hashtok, &chainhash);
if (chainhash) {
snprintf(chainname, 48, "EU_%s", chainhash);
*outchainname = strdup(chainname);
EUCA_FREE(chainhash);
return (0);
}
LOGERROR("could not create iptables compatible chain name for sec. group (%s)\n", secgroup->name);
return (1);
}
/**
* Retrieves security groups associated with the given list of instances.
* @param gni [in] pointer to global network information structure
* @param instances [in] pointer to array of instances structure of interest
* @param max_instances [in] number of entries in the array of instances
* @param out_secgroups [out] pointer to the list of structures representing security
* groups that were found. Caller is responsible to release the allocated memory
* @param max_out_secgroups [out] number of found security groups
* @return 0 on success, 1 otherwise
*/
int gni_get_secgroups_from_instances(globalNetworkInfo *gni, gni_instance *instances,
int max_instances, gni_secgroup ***out_secgroups, int *max_out_secgroups) {
char **sgnames = NULL;
int sgnames_max = 0;
gni_secgroup **result = NULL;
if (!instances || !out_secgroups || !gni) {
LOGWARN("Invalid argument: cannot get sgs from NULL\n");
return (1);
}
*max_out_secgroups = 0;
for (int i = 0; i < max_instances; i++) {
for (int j = 0; j < instances[i].max_secgroup_names; j++) {
euca_string_set_insert(&sgnames, &sgnames_max, instances[i].secgroup_names[j].name);
}
}
result = EUCA_ZALLOC_C(sgnames_max, sizeof(gni_secgroup *));
int sgcount = 0;
for (int i = 0; i < sgnames_max; i++) {
result[sgcount] = gni_get_secgroup(gni, sgnames[i], NULL);
if (result[sgcount] == NULL) {
LOGWARN("%s not found in global network view.\n", sgnames[i]);
} else {
sgcount++;
}
EUCA_FREE(sgnames[i]);
}
EUCA_FREE(sgnames);
*out_secgroups = result;
*max_out_secgroups = sgcount;
return (0);
}
/**
* Retrieves security groups that are referenced by the given list of security groups.
* @param gni [in] pointer to global network information structure
* @param sgs [in] pointer to array of security group structures of interest
* @param max_sgs [in] number of entries in the array of instances
* @param out_secgroups [out] pointer to the list of structures representing security
* groups that were found. Caller is responsible to release the allocated memory
* @param max_out_secgroups [out] number of found security groups
* @return 0 on success, 1 otherwise
*/
int gni_get_referenced_secgroups(globalNetworkInfo *gni, gni_secgroup **sgs,
int max_sgs, gni_secgroup ***out_secgroups, int *max_out_secgroups) {
char **sgnames = NULL;
int sgnames_max = 0;
gni_secgroup **result = NULL;
if (!sgs || !out_secgroups || !gni) {
LOGWARN("Invalid argument: cannot get referenced sgs from NULL\n");
return (1);
}
*max_out_secgroups = 0;
for (int i = 0; i < max_sgs; i++) {
for (int j = 0; j < sgs[i]->max_ingress_rules; j++) {
if (strlen(sgs[i]->ingress_rules[j].groupId) > 0) {
euca_string_set_insert(&sgnames, &sgnames_max, sgs[i]->ingress_rules[j].groupId);
}
}
for (int j = 0; j < sgs[i]->max_egress_rules; j++) {
if (strlen(sgs[i]->egress_rules[j].groupId) > 0) {
euca_string_set_insert(&sgnames, &sgnames_max, sgs[i]->egress_rules[j].groupId);
}
}
}
result = EUCA_ZALLOC_C(sgnames_max, sizeof(gni_secgroup *));
int sgcount = 0;
for (int i = 0; i < sgnames_max; i++) {
result[sgcount] = gni_get_secgroup(gni, sgnames[i], NULL);
if (result[sgcount] == NULL) {
LOGWARN("%s not found in global network view.\n", sgnames[i]);
} else {
sgcount++;
}
EUCA_FREE(sgnames[i]);
}
EUCA_FREE(sgnames);
*out_secgroups = result;
*max_out_secgroups = sgcount;
return (0);
}
/**
* Searches and returns a pointer to the route table data structure given its name in the argument..
*
* @param vpc [in] a pointer to the vpc gni data structure
* @param tableName [in] name of the route table of interest
*
* @return pointer to the gni route table of interest if found. NULL otherwise
*
* @pre
* gni data structure is assumed to be populated.
*/
gni_route_table *gni_vpc_get_routeTable(gni_vpc *vpc, const char *tableName) {
int i = 0;
boolean found = FALSE;
gni_route_table *result = NULL;
for (i = 0; i < vpc->max_routeTables && !found; i++) {
if (strcmp(tableName, vpc->routeTables[i].name) == 0) {
result = &(vpc->routeTables[i]);
found = TRUE;
}
}
return (result);
}
/**
* Searches and returns a pointer to the VPC subnet data structure given its name in the argument.
*
* @param vpc [in] a pointer to the vpc gni data structure
* @param vpcsubnetName [in] name of the subnet of interest
*
* @return pointer to the gni vpcsubnet of interest if found. NULL otherwise
*
* @pre
* gni data structure is assumed to be populated.
*/
gni_vpcsubnet *gni_vpc_get_vpcsubnet(gni_vpc *vpc, const char *vpcsubnetName) {
int i = 0;
boolean found = FALSE;
gni_vpcsubnet *result = NULL;
for (i = 0; i < vpc->max_subnets && !found; i++) {
if (strcmp(vpcsubnetName, vpc->subnets[i].name) == 0) {
result = &(vpc->subnets[i]);
found = TRUE;
}
}
return (result);
}
/**
* Searches and returns an array of pointers to gni_instance data structures (holding
* interface information) that are associated with the given VPC.
*
* @param gni [in] a pointer to the global network information structure
* @param vpc [in] a pointer to the vpc gni data structure of interest
* @param out_interfaces [out] a list of pointers to interfaces of interest
* @param max_out_interfaces [out] number of interfaces found
*
* @return 0 if the search is successfully executed - 0 interfaces found is still
* a successful search. 1 otherwise.
*
* @pre
* gni data structure is assumed to be populated.
* out_interfaces should be free of memory allocations.
*
* @post
* memory allocated to hold the resulting list of interfaces should be released
* by the caller.
*/
int gni_vpc_get_interfaces(globalNetworkInfo *gni, gni_vpc *vpc, gni_instance ***out_interfaces, int *max_out_interfaces) {
gni_instance **result = NULL;
int max_result = 0;
int i = 0;
if (!gni || !vpc || !out_interfaces || !max_out_interfaces) {
LOGWARN("Invalid argument: failed to get vpc interfaces.\n");
return (1);
}
LOGTRACE("Searching VPC interfaces.\n");
for (i = 0; i < gni->max_ifs; i++) {
if (strcmp(gni->ifs[i]->vpc, vpc->name)) {
LOGTRACE("%s in %s: N\n", gni->ifs[i]->name, vpc->name);
} else {
LOGTRACE("%s in %s: Y\n", gni->ifs[i]->name, vpc->name);
result = EUCA_REALLOC_C(result, max_result + 1, sizeof (gni_instance *));
result[max_result] = gni->ifs[i];
max_result++;
}
}
*out_interfaces = result;
*max_out_interfaces = max_result;
return (0);
}
/**
* Searches and returns an array of pointers to gni_instance data structures (holding
* interface information) that are associated with the given VPC subnet.
*
* @param gni [in] a pointer to the global network information structure
* @param vpcsubnet [in] a pointer to the vpcsubnet gni data structure of interest
* @param vpcinterfaces [in] a list of pointers to interfaces to search
* @param max_vpcinterfaces [in] number of interfaces found
* @param out_interfaces [out] a list of pointers to interfaces of interest
* @param max_out_interfaces [out] number of interfaces found
*
* @return 0 if the search is successfully executed - 0 interfaces found is still
* a successful search. 1 otherwise.
*
* @pre
* gni data structure is assumed to be populated.
* out_interfaces should be free of memory allocations.
*
* @post
* memory allocated to hold the resulting list of interfaces should be released
* by the caller.
*/
int gni_vpcsubnet_get_interfaces(globalNetworkInfo *gni, gni_vpcsubnet *vpcsubnet,
gni_instance **vpcinterfaces, int max_vpcinterfaces, gni_instance ***out_interfaces, int *max_out_interfaces) {
gni_instance **result = NULL;
int max_result = 0;
int i = 0;
if (!gni || !vpcsubnet || !vpcinterfaces || !out_interfaces || !max_out_interfaces) {
if (max_vpcinterfaces == 0) {
return (0);
}
LOGWARN("Invalid argument: failed to get subnet interfaces.\n");
return (1);
}
LOGTRACE("Searching VPC subnet interfaces.\n");
for (i = 0; i < max_vpcinterfaces; i++) {
if (strcmp(vpcinterfaces[i]->subnet, vpcsubnet->name)) {
LOGTRACE("%s in %s: N\n", vpcinterfaces[i]->name, vpcsubnet->name);
} else {
LOGTRACE("%s in %s: Y\n", vpcinterfaces[i]->name, vpcsubnet->name);
result = EUCA_REALLOC_C(result, max_result + 1, sizeof (gni_instance *));
result[max_result] = vpcinterfaces[i];
max_result++;
}
}
*out_interfaces = result;
*max_out_interfaces = max_result;
return (0);
}
/**
* Looks up for the cluster for which we are assigned within a configured cluster list. We can
* be the cluster itself or one of its node.
*
* @param gni [in] a pointer to the global network information structure
* @param outclusterptr [out] a pointer to the associated cluster structure pointer
*
* @return 0 if a matching cluster structure is found or 1 if not found or a failure occured
*
* @see gni_is_self()
*
* @post
* On success the value pointed by outclusterptr is valid. On failure, this value
* is non-deterministic.
*/
int gni_find_self_cluster(globalNetworkInfo * gni, gni_cluster ** outclusterptr) {
int i, j;
char *strptra = NULL;
if (!gni || !outclusterptr) {
LOGWARN("invalid argument: cannot find cluster from NULL\n");
return (1);
}
*outclusterptr = NULL;
for (i = 0; i < gni->max_clusters; i++) {
// check to see if local host is the enabled cluster controller
strptra = hex2dot(gni->clusters[i].enabledCCIp);
if (strptra) {
if (!gni_is_self_getifaddrs(strptra)) {
EUCA_FREE(strptra);
*outclusterptr = &(gni->clusters[i]);
return (0);
}
EUCA_FREE(strptra);
}
// otherwise, check to see if local host is a node in the cluster
for (j = 0; j < gni->clusters[i].max_nodes; j++) {
// if (!strcmp(gni->clusters[i].nodes[j].name, outnodeptr->name)) {
if (!gni_is_self_getifaddrs(gni->clusters[i].nodes[j].name)) {
*outclusterptr = &(gni->clusters[i]);
return (0);
}
}
}
return (1);
}
/**
* Looks up for the security group ID in the argument.
* @param gni [in] a pointer to the global network information structure
* @param psGroupId [in] a pointer to a constant string containing the Security-Group ID of interest
* @param pSecGroup [out] a pointer to the associated security group structure pointer
* @return 0 if a matching security group structure is found or 1 if not found or a failure occurred
*/
int gni_find_secgroup(globalNetworkInfo *gni, const char *psGroupId, gni_secgroup **pSecGroup) {
int i = 0;
if (!gni || !psGroupId || !pSecGroup) {
LOGWARN("invalid argument: cannot find secgroup from NULL\n");
return (1);
}
// Initialize to NULL
(*pSecGroup) = NULL;
// Go through our security group list and look for that group
for (i = 0; i < gni->max_secgroups; i++) {
if (!strcmp(psGroupId, gni->secgroups[i].name)) {
(*pSecGroup) = &(gni->secgroups[i]);
return (0);
}
}
return (1);
}
/**
* Searches for the given instance name and returns the associated gni_instance structure.
* @param gni [in] pointer to the global network information structure.
* @param psInstanceId [in] the ID string of the instance of interest.
* @param pInstance [out] pointer to the gni_instance structure of interest.
* @return 0 on success. Positive integer otherwise.
*/
int gni_find_instance(globalNetworkInfo *gni, const char *psInstanceId, gni_instance ** pInstance) {
if (!gni || !psInstanceId || !pInstance) {
LOGWARN("invalid argument: cannot find instance from NULL\n");
return (1);
}
// Initialize to NULL
(*pInstance) = NULL;
LOGTRACE("attempting search for instance id %s in gni\n", psInstanceId);
// binary search - instances should be already sorted in GNI (uncomment below if not sorted)
/*
if (gni->sorted_instances == FALSE) {
qsort(gni->instances, gni->max_instances,
sizeof (gni_instance *), compare_gni_instance_name);
gni->sorted_instances = TRUE;
}
*/
gni_instance inst;
snprintf(inst.name, INTERFACE_ID_LEN, "%s", psInstanceId);
gni_instance *pinst = &inst;
gni_instance **res = (gni_instance **) bsearch(&pinst,
gni->instances, gni->max_instances,
sizeof (gni_instance *), compare_gni_instance_name);
if (res) {
*pInstance = *res;
return (0);
}
return (1);
}
/**
* Searches through the list of network interfaces in the gni and returns all
* non-primary interfaces for a given instance
*
* @param gni [in] a pointer to the global network information structure
* @param psInstanceId [in] a pointer to instance ID identifier (i-XXXXXXX)
* @param pAInstances [out] an array of network interface pointers
* @param size [out] a pointer to the size of the array
*
* @return 0 if lookup is successful or 1 if a failure occurred
*/
int gni_find_secondary_interfaces(globalNetworkInfo *gni, const char *psInstanceId, gni_instance *pAInstances[], int *size) {
if (!size || !gni || !psInstanceId || !sizeof (pAInstances)) {
LOGERROR("invalid argument: cannot find secondary interfaces for NULL\n");
return EUCA_ERROR;
}
*size = 0;
LOGTRACE("attempting search for interfaces for instance id %s in gni\n", psInstanceId);
gni_instance *inst = NULL;
int rc = 0;
rc = gni_find_instance(gni, psInstanceId, &inst);
if (!rc) {
for (int i = 0; i < inst->max_interfaces; i++) {
if (inst->interfaces[i]->deviceidx != 0) {
pAInstances[*size] = inst->interfaces[i];
(*size)++;
}
}
}
return EUCA_OK;
}
/**
* Looks up through a list of configured node for the one that is associated with
* this currently running instance.
*
* @param gni [in] a pointer to the global network information structure
* @param outnodeptr [out] a pointer to the associated node structure pointer
*
* @return 0 if a matching node structure is found or 1 if not found or a failure occured
*
* @see gni_is_self()
*
* @post
* On success the value pointed by outnodeptr is valid. On failure, this value
* is non-deterministic.
*/
int gni_find_self_node(globalNetworkInfo *gni, gni_node **outnodeptr) {
int i, j;
if (!gni || !outnodeptr) {
LOGERROR("invalid input\n");
return (1);
}
*outnodeptr = NULL;
for (i = 0; i < gni->max_clusters; i++) {
for (j = 0; j < gni->clusters[i].max_nodes; j++) {
if (!gni_is_self_getifaddrs(gni->clusters[i].nodes[j].name)) {
*outnodeptr = &(gni->clusters[i].nodes[j]);
return (0);
}
}
}
return (1);
}
/**
* Validates if the given test_ip is a local IP address on this system
*
* @param test_ip [in] a string containing the IP to validate
*
* @return 0 if the test_ip is a local IP or 1 on failure or if not found locally
*/
int gni_is_self(const char *test_ip) {
DIR *DH = NULL;
struct dirent dent, *result = NULL;
int max, rc, i;
u32 *outips = NULL, *outnms = NULL;
char *strptra = NULL;
if (!test_ip) {
LOGERROR("invalid input\n");
return (1);
}
DH = opendir("/sys/class/net/");
if (!DH) {
LOGERROR("could not open directory /sys/class/net/ for read: check permissions\n");
return (1);
}
rc = readdir_r(DH, &dent, &result);
while (!rc && result) {
if (strcmp(dent.d_name, ".") && strcmp(dent.d_name, "..")) {
rc = getdevinfo(dent.d_name, &outips, &outnms, &max);
for (i = 0; i < max; i++) {
strptra = hex2dot(outips[i]);
if (strptra) {
if (!strcmp(strptra, test_ip)) {
EUCA_FREE(strptra);
EUCA_FREE(outips);
EUCA_FREE(outnms);
closedir(DH);
return (0);
}
EUCA_FREE(strptra);
}
}
EUCA_FREE(outips);
EUCA_FREE(outnms);
}
rc = readdir_r(DH, &dent, &result);
}
closedir(DH);
return (1);
}
/**
* Validates if the given test_ip is a local IP address on this system. This function
* is based on getifaddrs() call.
* @param test_ip [in] a string containing the IP to validate
*
* @return 0 if the test_ip is a local IP or 1 on failure or if not found locally
*/
int gni_is_self_getifaddrs(const char *test_ip) {
struct ifaddrs *ifas = NULL;
struct ifaddrs *elem = NULL;
int found = 0;
int rc = 0;
if (!test_ip) {
LOGERROR("invalid input: cannot check NULL IP\n");
return (1);
}
rc = getifaddrs(&ifas);
if (rc) {
LOGERROR("unable to retrieve system IPv4 addresses.\n");
freeifaddrs(ifas);
return (1);
}
elem = ifas;
while (elem && !found) {
if (elem->ifa_addr && elem->ifa_addr->sa_family == AF_INET) {
struct sockaddr_in *saddr = (struct sockaddr_in *) elem->ifa_addr;
if (!strcmp(test_ip, inet_ntoa(saddr->sin_addr))) {
found = 1;
}
}
elem = elem->ifa_next;
}
freeifaddrs(ifas);
if (found) {
return (0);
}
return (1);
}
/**
* Return a copy of GNI clusters
* @param gni [in] a pointer to the global network information structure
* @param cluster_names [in] optional list of cluster names to look for
* @param max_cluster_names [in] number of cluster names in the optional list
* @param out_cluster_names [out] list of found cluster names
* @param out_max_cluster_names [out] number of entries in the found cluster name array
* @param out_clusters [out] array of gni_cluster data structures
* @param out_max_clusters [out] number oif entries in the array of gni_cluster data structures
* @return 0 on success. 1 on failure.
*/
int gni_cloud_get_clusters(globalNetworkInfo *gni, char **cluster_names, int max_cluster_names,
char ***out_cluster_names, int *out_max_cluster_names, gni_cluster **out_clusters,
int *out_max_clusters) {
int ret = 0, getall = 0, i = 0, j = 0, retcount = 0, do_outnames = 0, do_outstructs = 0;
gni_cluster *ret_clusters = NULL;
char **ret_cluster_names = NULL;
if (!cluster_names || max_cluster_names <= 0) {
LOGERROR("invalid input\n");
return (1);
}
if (out_cluster_names && out_max_cluster_names) {
do_outnames = 1;
}
if (out_clusters && out_max_clusters) {
do_outstructs = 1;
}
if (!do_outnames && !do_outstructs) {
LOGEXTREME("nothing to do, both output variables are NULL\n");
return (0);
}
if (do_outnames) {
*out_cluster_names = NULL;
*out_max_cluster_names = 0;
}
if (do_outstructs) {
*out_clusters = NULL;
*out_max_clusters = 0;
}
if (!strcmp(cluster_names[0], "*")) {
getall = 1;
if (do_outnames)
*out_cluster_names = EUCA_ZALLOC_C(gni->max_clusters, sizeof (char *));
if (do_outstructs)
*out_clusters = EUCA_ZALLOC_C(gni->max_clusters, sizeof (gni_cluster));
}
if (do_outnames)
ret_cluster_names = *out_cluster_names;
if (do_outstructs)
ret_clusters = *out_clusters;
retcount = 0;
for (i = 0; i < gni->max_clusters; i++) {
if (getall) {
if (do_outnames)
ret_cluster_names[i] = strdup(gni->clusters[i].name);
if (do_outstructs)
memcpy(&(ret_clusters[i]), &(gni->clusters[i]), sizeof (gni_cluster));
retcount++;
} else {
for (j = 0; j < max_cluster_names; j++) {
if (!strcmp(cluster_names[j], gni->clusters[i].name)) {
if (do_outnames) {
*out_cluster_names = EUCA_REALLOC_C(*out_cluster_names, (retcount + 1), sizeof (char *));
ret_cluster_names = *out_cluster_names;
ret_cluster_names[retcount] = strdup(gni->clusters[i].name);
}
if (do_outstructs) {
*out_clusters = EUCA_REALLOC_C(*out_clusters, (retcount + 1), sizeof (gni_cluster));
ret_clusters = *out_clusters;
memcpy(&(ret_clusters[retcount]), &(gni->clusters[i]), sizeof (gni_cluster));
}
retcount++;
}
}
}
}
if (do_outnames)
*out_max_cluster_names = retcount;
if (do_outstructs)
*out_max_clusters = retcount;
return (ret);
}
/**
* Retrives the list of security groups configured under a cloud
*
* @param pGni [in] a pointer to our global network view structure
* @param psSecGroupNames [in] a string pointer to the name of groups we're looking for
* @param nbSecGroupNames [in] the number of groups in the psSecGroupNames list
* @param psOutSecGroupNames [out] a string pointer that will contain the list of group names we found (if non NULL)
* @param pOutNbSecGroupNames [out] a pointer to the number of groups that matched in the psOutSecGroupNames list
* @param pOutSecGroups [out] a pointer to the list of security group structures that match what we're looking for
* @param pOutNbSecGroups [out] a pointer to the number of structures in the psOutSecGroups list
*
* @return 0 on success or 1 if any failure occured
*/
int gni_cloud_get_secgroups(globalNetworkInfo *pGni, char **psSecGroupNames,
int nbSecGroupNames, char ***psOutSecGroupNames, int *pOutNbSecGroupNames,
gni_secgroup ** pOutSecGroups, int *pOutNbSecGroups) {
int ret = 0;
int i = 0;
int x = 0;
int retCount = 0;
char **psRetSecGroupNames = NULL;
boolean getAll = FALSE;
boolean doOutNames = FALSE;
boolean doOutStructs = FALSE;
gni_secgroup *pRetSecGroup = NULL;
// Make sure our GNI pointer isn't NULL
if (!pGni) {
LOGERROR("invalid input\n");
return (1);
}
// Are we building the name list?
if (psOutSecGroupNames && pOutNbSecGroupNames) {
doOutNames = TRUE;
*psOutSecGroupNames = NULL;
*pOutNbSecGroupNames = 0;
}
// Are we building the structure list?
if (pOutSecGroups && pOutNbSecGroups) {
doOutStructs = TRUE;
*pOutSecGroups = NULL;
*pOutNbSecGroups = 0;
}
// Are we doing anything?
if (!doOutNames && !doOutStructs) {
LOGEXTREME("nothing to do, both output variables are NULL\n");
return (0);
}
// Do we have any groups?
if (pGni->max_secgroups == 0)
return (0);
// If we do it all, allocate the memory now
if (psSecGroupNames == NULL || !strcmp(psSecGroupNames[0], "*")) {
getAll = TRUE;
if (doOutNames)
*psOutSecGroupNames = EUCA_ZALLOC_C(pGni->max_secgroups, sizeof (char *));
if (doOutStructs)
*pOutSecGroups = EUCA_ZALLOC_C(pGni->max_secgroups, sizeof (gni_secgroup));
}
// Setup our returning name list pointer
if (doOutNames)
psRetSecGroupNames = *psOutSecGroupNames;
// Setup our returning structure list pointer
if (doOutStructs)
pRetSecGroup = *pOutSecGroups;
// Go through the group list
for (i = 0, retCount = 0; i < pGni->max_secgroups; i++) {
if (getAll) {
if (doOutNames)
psRetSecGroupNames[retCount] = strdup(pGni->secgroups[i].name);
if (doOutStructs)
memcpy(&(pRetSecGroup[retCount]), &(pGni->secgroups[i]), sizeof (gni_secgroup));
retCount++;
} else {
if (!strcmp(psSecGroupNames[x], pGni->secgroups[i].name)) {
if (doOutNames) {
*psOutSecGroupNames = EUCA_REALLOC_C(*psOutSecGroupNames, (retCount + 1), sizeof (char *));
psRetSecGroupNames = *psOutSecGroupNames;
psRetSecGroupNames[retCount] = strdup(pGni->secgroups[i].name);
}
if (doOutStructs) {
*pOutSecGroups = EUCA_REALLOC_C(*pOutSecGroups, (retCount + 1), sizeof (gni_instance));
pRetSecGroup = *pOutSecGroups;
memcpy(&(pRetSecGroup[retCount]), &(pGni->secgroups[i]), sizeof (gni_secgroup));
}
retCount++;
}
}
}
if (doOutNames)
*pOutNbSecGroupNames = retCount;
if (doOutStructs)
*pOutNbSecGroups = retCount;
return (ret);
}
/**
* Returns a copy of nodes in the given cluster.
* @param gni [in] a pointer to our global network view structure
* @param cluster [in] gni_cluster data structure of interest
* @param node_names [in] optional list of node names to look for
* @param max_node_names [in] number of entries in the optional list of node names
* @param out_node_names [out] list of found node names
* @param out_max_node_names [out] number of entries in the list of found node names
* @param out_nodes [out] array of found gni_node data structures
* @param out_max_nodes [out] number of entries in the array of found gni_node data structures
* @return 0 on success. 1 on failure.
*/
int gni_cluster_get_nodes(globalNetworkInfo *gni, gni_cluster *cluster,
char **node_names, int max_node_names, char ***out_node_names,
int *out_max_node_names, gni_node ** out_nodes, int *out_max_nodes) {
int ret = 0, rc = 0, getall = 0, i = 0, j = 0, retcount = 0, do_outnames = 0, do_outstructs = 0, out_max_clusters = 0;
gni_node *ret_nodes = NULL;
gni_cluster *out_clusters = NULL;
char **ret_node_names = NULL, **cluster_names = NULL;
if (!gni) {
LOGERROR("invalid input\n");
return (1);
}
if (out_node_names && out_max_node_names) {
do_outnames = 1;
}
if (out_nodes && out_max_nodes) {
do_outstructs = 1;
}
if (!do_outnames && !do_outstructs) {
LOGEXTREME("nothing to do, both output variables are NULL\n");
return (0);
}
if (do_outnames) {
*out_node_names = NULL;
*out_max_node_names = 0;
}
if (do_outstructs) {
*out_nodes = NULL;
*out_max_nodes = 0;
}
cluster_names = EUCA_ZALLOC_C(1, sizeof (char *));
cluster_names[0] = cluster->name;
rc = gni_cloud_get_clusters(gni, cluster_names, 1, NULL, NULL, &out_clusters, &out_max_clusters);
if (rc || out_max_clusters <= 0) {
LOGWARN("nothing to do, no matching cluster named '%s' found\n", cluster->name);
EUCA_FREE(cluster_names);
EUCA_FREE(out_clusters);
return (0);
}
if ((node_names == NULL) || !strcmp(node_names[0], "*")) {
getall = 1;
if (do_outnames)
*out_node_names = EUCA_ZALLOC_C(cluster->max_nodes, sizeof (char *));
if (do_outstructs)
*out_nodes = EUCA_ZALLOC_C(cluster->max_nodes, sizeof (gni_node));
}
if (do_outnames)
ret_node_names = *out_node_names;
if (do_outstructs)
ret_nodes = *out_nodes;
retcount = 0;
for (i = 0; i < cluster->max_nodes; i++) {
if (getall) {
if (do_outnames)
ret_node_names[i] = strdup(out_clusters[0].nodes[i].name);
if (do_outstructs)
memcpy(&(ret_nodes[i]), &(out_clusters[0].nodes[i]), sizeof (gni_node));
retcount++;
} else {
for (j = 0; j < max_node_names; j++) {
if (!strcmp(node_names[j], out_clusters[0].nodes[i].name)) {
if (do_outnames) {
*out_node_names = EUCA_REALLOC_C(*out_node_names, (retcount + 1), sizeof (char *));
ret_node_names = *out_node_names;
ret_node_names[retcount] = strdup(out_clusters[0].nodes[i].name);
}
if (do_outstructs) {
*out_nodes = EUCA_REALLOC_C(*out_nodes, (retcount + 1), sizeof (gni_node));
ret_nodes = *out_nodes;
memcpy(&(ret_nodes[retcount]), &(out_clusters[0].nodes[i]), sizeof (gni_node));
}
retcount++;
}
}
}
}
if (do_outnames)
*out_max_node_names = retcount;