Ejemplo n.º 1
0
static char *
virStorageBackendISCSIFindPoolSources(virConnectPtr conn ATTRIBUTE_UNUSED,
                                      const char *srcSpec,
                                      unsigned int flags)
{
    virStoragePoolSourcePtr source = NULL;
    size_t ntargets = 0;
    char **targets = NULL;
    char *ret = NULL;
    int i;
    virStoragePoolSourceList list = {
        .type = VIR_STORAGE_POOL_ISCSI,
        .nsources = 0,
        .sources = NULL
    };
    char *portal = NULL;

    virCheckFlags(0, NULL);

    if (!(source = virStoragePoolDefParseSourceString(srcSpec,
                                                      list.type)))
        return NULL;

    if (!(portal = virStorageBackendISCSIPortal(source)))
        goto cleanup;

    if (virStorageBackendISCSIScanTargets(portal,
                                          source->initiator.iqn,
                                          &ntargets, &targets) < 0)
        goto cleanup;

    if (VIR_ALLOC_N(list.sources, ntargets) < 0) {
        virReportOOMError();
        goto cleanup;
    }

    for (i = 0 ; i < ntargets ; i++) {
        if (VIR_ALLOC_N(list.sources[i].devices, 1) < 0) {
            virReportOOMError();
            goto cleanup;
        }
        list.sources[i].host = source->host;
        list.sources[i].initiator = source->initiator;
        list.sources[i].ndevice = 1;
        list.sources[i].devices[0].path = targets[i];
        list.nsources++;
    }

    if (!(ret = virStoragePoolSourceListFormat(&list))) {
        virReportOOMError();
        goto cleanup;
    }

cleanup:
    if (list.sources) {
        for (i = 0 ; i < ntargets ; i++)
            VIR_FREE(list.sources[i].devices);
        VIR_FREE(list.sources);
    }
    for (i = 0 ; i < ntargets ; i++)
        VIR_FREE(targets[i]);
    VIR_FREE(targets);
    VIR_FREE(portal);
    virStoragePoolSourceFree(source);
    return ret;
}

static int
virStorageBackendISCSICheckPool(virConnectPtr conn ATTRIBUTE_UNUSED,
                                virStoragePoolObjPtr pool,
                                bool *isActive)
{
    char *session = NULL;
    int ret = -1;

    *isActive = false;

    if (pool->def->source.host.name == NULL) {
        virStorageReportError(VIR_ERR_INTERNAL_ERROR,
                              "%s", _("missing source host"));
        return -1;
    }

    if (pool->def->source.ndevice != 1 ||
        pool->def->source.devices[0].path == NULL) {
        virStorageReportError(VIR_ERR_INTERNAL_ERROR,
                              "%s", _("missing source device"));
        return -1;
    }

    if ((session = virStorageBackendISCSISession(pool, 1)) != NULL) {
        *isActive = true;
        VIR_FREE(session);
    }
    ret = 0;

    return ret;
}
Ejemplo n.º 2
0
static char *
virStorageBackendFileSystemNetFindPoolSources(virConnectPtr conn ATTRIBUTE_UNUSED,
                                              const char *srcSpec,
                                              unsigned int flags)
{
    /*
     *  # showmount --no-headers -e HOSTNAME
     *  /tmp   *
     *  /A dir demo1.foo.bar,demo2.foo.bar
     *
     * Extract directory name (including possible interior spaces ...).
     */

    const char *regexes[] = {
        "^(/.*\\S) +\\S+$"
    };
    int vars[] = {
        1
    };
    virNetfsDiscoverState state = {
        .host = NULL,
        .list = {
            .type = VIR_STORAGE_POOL_NETFS,
            .nsources = 0,
            .sources = NULL
        }
    };
    const char *prog[] = { SHOWMOUNT, "--no-headers", "--exports", NULL, NULL };
    virStoragePoolSourcePtr source = NULL;
    char *retval = NULL;
    unsigned int i;

    virCheckFlags(0, NULL);

    source = virStoragePoolDefParseSourceString(srcSpec,
                                                VIR_STORAGE_POOL_NETFS);
    if (!source)
        goto cleanup;

    state.host = source->host.name;
    prog[3] = source->host.name;

    if (virStorageBackendRunProgRegex(NULL, prog, 1, regexes, vars,
                            virStorageBackendFileSystemNetFindPoolSourcesFunc,
                            &state, NULL) < 0)
        goto cleanup;

    retval = virStoragePoolSourceListFormat(&state.list);
    if (retval == NULL) {
        virReportOOMError();
        goto cleanup;
    }

 cleanup:
    for (i = 0; i < state.list.nsources; i++)
        virStoragePoolSourceClear(&state.list.sources[i]);
    VIR_FREE(state.list.sources);

    virStoragePoolSourceFree(source);

    return retval;
}
Ejemplo n.º 3
0
static char *
virStorageBackendFileSystemNetFindPoolSources(virConnectPtr conn ATTRIBUTE_UNUSED,
                                              const char *srcSpec,
                                              unsigned int flags)
{
    /*
     *  # showmount --no-headers -e HOSTNAME
     *  /tmp   *
     *  /A dir demo1.foo.bar,demo2.foo.bar
     *
     * Extract directory name (including possible interior spaces ...).
     */

    const char *regexes[] = {
        "^(/.*\\S) +\\S+$"
    };
    int vars[] = {
        1
    };
    virNetfsDiscoverState state = {
        .host = NULL,
        .list = {
            .type = VIR_STORAGE_POOL_NETFS,
            .nsources = 0,
            .sources = NULL
        }
    };
    virStoragePoolSourcePtr source = NULL;
    char *retval = NULL;
    unsigned int i;
    virCommandPtr cmd = NULL;

    virCheckFlags(0, NULL);

    if (!srcSpec) {
        virReportError(VIR_ERR_INVALID_ARG,
                       "%s", _("hostname must be specified for netfs sources"));
        return NULL;
    }

    if (!(source = virStoragePoolDefParseSourceString(srcSpec,
                                                      VIR_STORAGE_POOL_NETFS)))
        return NULL;

    if (source->nhost != 1) {
        virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
                       _("Expected exactly 1 host for the storage pool"));
        goto cleanup;
    }

    state.host = source->hosts[0].name;

    cmd = virCommandNewArgList(SHOWMOUNT,
                               "--no-headers",
                               "--exports",
                               source->hosts[0].name,
                               NULL);

    if (virStorageBackendRunProgRegex(NULL, cmd, 1, regexes, vars,
                            virStorageBackendFileSystemNetFindPoolSourcesFunc,
                            &state, NULL) < 0)
        goto cleanup;

    retval = virStoragePoolSourceListFormat(&state.list);
    if (retval == NULL) {
        virReportOOMError();
        goto cleanup;
    }

 cleanup:
    for (i = 0; i < state.list.nsources; i++)
        virStoragePoolSourceClear(&state.list.sources[i]);
    VIR_FREE(state.list.sources);

    virStoragePoolSourceFree(source);
    virCommandFree(cmd);
    return retval;
}