Esempio n. 1
0
static
int parseIds(const char *label, uid_t *uidPtr, gid_t *gidPtr)
{
    int rc = -1;
    unsigned int theuid;
    unsigned int thegid;
    char *tmp_label = NULL;
    char *sep = NULL;
    char *owner = NULL;
    char *group = NULL;

    tmp_label = strdup(label);
    if (tmp_label == NULL) {
        virReportOOMError();
        goto cleanup;
    }

    /* Split label */
    sep = strchr(tmp_label, ':');
    if (sep == NULL) {
        virReportError(VIR_ERR_INVALID_ARG,
                       _("Missing separator ':' in DAC label \"%s\""),
                       label);
        goto cleanup;
    }
    *sep = '\0';
    owner = tmp_label;
    group = sep + 1;

    /* Parse owner */
    if (*owner == '+') {
        if (virStrToLong_ui(++owner, NULL, 10, &theuid) < 0) {
            virReportError(VIR_ERR_INVALID_ARG,
                           _("Invalid uid \"%s\" in DAC label \"%s\""),
                           owner, label);
            goto cleanup;
        }
    } else {
        if (virGetUserID(owner, &theuid) < 0 &&
            virStrToLong_ui(owner, NULL, 10, &theuid) < 0) {
            virReportError(VIR_ERR_INVALID_ARG,
                           _("Invalid owner \"%s\" in DAC label \"%s\""),
                           owner, label);
            goto cleanup;
        }
    }

    /* Parse group */
    if (*group == '+') {
        if (virStrToLong_ui(++group, NULL, 10, &thegid) < 0) {
            virReportError(VIR_ERR_INVALID_ARG,
                           _("Invalid gid \"%s\" in DAC label \"%s\""),
                           group, label);
            goto cleanup;
        }
    } else {
        if (virGetGroupID(group, &thegid) < 0 &&
            virStrToLong_ui(group, NULL, 10, &thegid) < 0) {
            virReportError(VIR_ERR_INVALID_ARG,
                           _("Invalid group \"%s\" in DAC label \"%s\""),
                           group, label);
            goto cleanup;
        }
    }

    if (uidPtr)
        *uidPtr = theuid;
    if (gidPtr)
        *gidPtr = thegid;

    rc = 0;

cleanup:
    VIR_FREE(tmp_label);

    return rc;
}
/*
 * sanlock plugin for the libvirt virLockManager API
 */
static int virLockManagerSanlockLoadConfig(const char *configFile)
{
    virConfPtr conf;
    virConfValuePtr p;
    char *tmp;

    if (access(configFile, R_OK) == -1) {
        if (errno != ENOENT) {
            virReportSystemError(errno,
                                 _("Unable to access config file %s"),
                                 configFile);
            return -1;
        }
        return 0;
    }

    if (!(conf = virConfReadFile(configFile, 0)))
        return -1;

#define CHECK_TYPE(name,typ) if (p && p->type != (typ)) {               \
        virReportError(VIR_ERR_INTERNAL_ERROR,                          \
                       "%s: %s: expected type " #typ,                   \
                       configFile, (name));                             \
        virConfFree(conf);                                              \
        return -1;                                                      \
    }

    p = virConfGetValue(conf, "auto_disk_leases");
    CHECK_TYPE("auto_disk_leases", VIR_CONF_LONG);
    if (p) driver->autoDiskLease = p->l;

    p = virConfGetValue(conf, "disk_lease_dir");
    CHECK_TYPE("disk_lease_dir", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->autoDiskLeasePath);
        if (!(driver->autoDiskLeasePath = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue(conf, "host_id");
    CHECK_TYPE("host_id", VIR_CONF_LONG);
    if (p) driver->hostID = p->l;

    p = virConfGetValue(conf, "require_lease_for_disks");
    CHECK_TYPE("require_lease_for_disks", VIR_CONF_LONG);
    if (p)
        driver->requireLeaseForDisks = p->l;
    else
        driver->requireLeaseForDisks = !driver->autoDiskLease;

    p = virConfGetValue(conf, "user");
    CHECK_TYPE("user", VIR_CONF_STRING);
    if (p) {
        if (!(tmp = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }

        if (virGetUserID(tmp, &driver->user) < 0) {
            VIR_FREE(tmp);
            virConfFree(conf);
            return -1;
        }
        VIR_FREE(tmp);
    }

    p = virConfGetValue (conf, "group");
    CHECK_TYPE ("group", VIR_CONF_STRING);
    if (p) {
        if (!(tmp = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
        if (virGetGroupID(tmp, &driver->group) < 0) {
            VIR_FREE(tmp);
            virConfFree(conf);
            return -1;
        }
        VIR_FREE(tmp);
    }

    virConfFree(conf);
    return 0;
}
Esempio n. 3
0
int virQEMUDriverConfigLoadFile(virQEMUDriverConfigPtr cfg,
                                const char *filename)
{
    virConfPtr conf = NULL;
    virConfValuePtr p;
    int ret = -1;
    size_t i;
    char *stdioHandler = NULL;

    /* Just check the file is readable before opening it, otherwise
     * libvirt emits an error.
     */
    if (access(filename, R_OK) == -1) {
        VIR_INFO("Could not read qemu config file %s", filename);
        return 0;
    }

    if (!(conf = virConfReadFile(filename, 0)))
        goto cleanup;

#define CHECK_TYPE(name, typ)                         \
    if (p && p->type != (typ)) {                      \
        virReportError(VIR_ERR_INTERNAL_ERROR,        \
                       "%s: %s: expected type " #typ, \
                       filename, (name));             \
        goto cleanup;                                 \
    }

#define CHECK_TYPE_ALT(name, type1, type2)                      \
    if (p && (p->type != (type1) && p->type != (type2))) {      \
        virReportError(VIR_ERR_INTERNAL_ERROR,                  \
                       "%s: %s: expected type " #type1,         \
                       filename, (name));                       \
        goto cleanup;                                           \
    }

#define GET_VALUE_LONG(NAME, VAR)                               \
    p = virConfGetValue(conf, NAME);                            \
    CHECK_TYPE_ALT(NAME, VIR_CONF_LONG, VIR_CONF_ULONG);        \
    if (p)                                                      \
        VAR = p->l;

#define GET_VALUE_ULONG(NAME, VAR)    \
    p = virConfGetValue(conf, NAME);  \
    CHECK_TYPE(NAME, VIR_CONF_ULONG); \
    if (p)                            \
        VAR = p->l;

#define GET_VALUE_BOOL(NAME, VAR)     \
    p = virConfGetValue(conf, NAME);  \
    CHECK_TYPE(NAME, VIR_CONF_ULONG); \
    if (p)                            \
        VAR = p->l != 0;

#define GET_VALUE_STR(NAME, VAR)           \
    p = virConfGetValue(conf, NAME);       \
    CHECK_TYPE(NAME, VIR_CONF_STRING);     \
    if (p && p->str) {                     \
        VIR_FREE(VAR);                     \
        if (VIR_STRDUP(VAR, p->str) < 0)   \
            goto cleanup;                  \
    }

    GET_VALUE_BOOL("vnc_auto_unix_socket", cfg->vncAutoUnixSocket);
    GET_VALUE_BOOL("vnc_tls", cfg->vncTLS);
    GET_VALUE_BOOL("vnc_tls_x509_verify", cfg->vncTLSx509verify);
    GET_VALUE_STR("vnc_tls_x509_cert_dir", cfg->vncTLSx509certdir);
    GET_VALUE_STR("vnc_listen", cfg->vncListen);
    GET_VALUE_STR("vnc_password", cfg->vncPassword);
    GET_VALUE_BOOL("vnc_sasl", cfg->vncSASL);
    GET_VALUE_STR("vnc_sasl_dir", cfg->vncSASLdir);
    GET_VALUE_BOOL("vnc_allow_host_audio", cfg->vncAllowHostAudio);
    GET_VALUE_BOOL("nographics_allow_host_audio", cfg->nogfxAllowHostAudio);

    p = virConfGetValue(conf, "security_driver");
    if (p && p->type == VIR_CONF_LIST) {
        size_t len, j;
        virConfValuePtr pp;

        /* Calc length and check items */
        for (len = 0, pp = p->list; pp; len++, pp = pp->next) {
            if (pp->type != VIR_CONF_STRING) {
                virReportError(VIR_ERR_CONF_SYNTAX, "%s",
                               _("security_driver must be a list of strings"));
                goto cleanup;
            }
        }

        if (VIR_ALLOC_N(cfg->securityDriverNames, len + 1) < 0)
            goto cleanup;

        for (i = 0, pp = p->list; pp; i++, pp = pp->next) {
            for (j = 0; j < i; j++) {
                if (STREQ(pp->str, cfg->securityDriverNames[j])) {
                    virReportError(VIR_ERR_CONF_SYNTAX,
                                   _("Duplicate security driver %s"), pp->str);
                    goto cleanup;
                }
            }
            if (VIR_STRDUP(cfg->securityDriverNames[i], pp->str) < 0)
                goto cleanup;
        }
        cfg->securityDriverNames[len] = NULL;
    } else {
        CHECK_TYPE("security_driver", VIR_CONF_STRING);
        if (p && p->str) {
            if (VIR_ALLOC_N(cfg->securityDriverNames, 2) < 0)
                goto cleanup;
            if (VIR_STRDUP(cfg->securityDriverNames[0], p->str) < 0)
                goto cleanup;

            cfg->securityDriverNames[1] = NULL;
        }
    }

    GET_VALUE_BOOL("security_default_confined", cfg->securityDefaultConfined);
    GET_VALUE_BOOL("security_require_confined", cfg->securityRequireConfined);

    GET_VALUE_BOOL("spice_tls", cfg->spiceTLS);
    GET_VALUE_STR("spice_tls_x509_cert_dir", cfg->spiceTLSx509certdir);
    GET_VALUE_BOOL("spice_sasl", cfg->spiceSASL);
    GET_VALUE_STR("spice_sasl_dir", cfg->spiceSASLdir);
    GET_VALUE_STR("spice_listen", cfg->spiceListen);
    GET_VALUE_STR("spice_password", cfg->spicePassword);
    GET_VALUE_BOOL("spice_auto_unix_socket", cfg->spiceAutoUnixSocket);


    GET_VALUE_ULONG("remote_websocket_port_min", cfg->webSocketPortMin);
    if (cfg->webSocketPortMin < QEMU_WEBSOCKET_PORT_MIN) {
        /* if the port is too low, we can't get the display name
         * to tell to vnc (usually subtract 5700, e.g. localhost:1
         * for port 5701) */
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("%s: remote_websocket_port_min: port must be greater "
                         "than or equal to %d"),
                        filename, QEMU_WEBSOCKET_PORT_MIN);
        goto cleanup;
    }

    GET_VALUE_ULONG("remote_websocket_port_max", cfg->webSocketPortMax);
    if (cfg->webSocketPortMax > QEMU_WEBSOCKET_PORT_MAX ||
        cfg->webSocketPortMax < cfg->webSocketPortMin) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("%s: remote_websocket_port_max: port must be between "
                          "the minimal port and %d"),
                       filename, QEMU_WEBSOCKET_PORT_MAX);
        goto cleanup;
    }

    if (cfg->webSocketPortMin > cfg->webSocketPortMax) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("%s: remote_websocket_port_min: min port must not be "
                          "greater than max port"), filename);
        goto cleanup;
    }

    GET_VALUE_ULONG("remote_display_port_min", cfg->remotePortMin);
    if (cfg->remotePortMin < QEMU_REMOTE_PORT_MIN) {
        /* if the port is too low, we can't get the display name
         * to tell to vnc (usually subtract 5900, e.g. localhost:1
         * for port 5901) */
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("%s: remote_display_port_min: port must be greater "
                         "than or equal to %d"),
                        filename, QEMU_REMOTE_PORT_MIN);
        goto cleanup;
    }

    GET_VALUE_ULONG("remote_display_port_max", cfg->remotePortMax);
    if (cfg->remotePortMax > QEMU_REMOTE_PORT_MAX ||
        cfg->remotePortMax < cfg->remotePortMin) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("%s: remote_display_port_max: port must be between "
                          "the minimal port and %d"),
                       filename, QEMU_REMOTE_PORT_MAX);
        goto cleanup;
    }

    if (cfg->remotePortMin > cfg->remotePortMax) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("%s: remote_display_port_min: min port must not be "
                          "greater than max port"), filename);
        goto cleanup;
    }

    GET_VALUE_ULONG("migration_port_min", cfg->migrationPortMin);
    if (cfg->migrationPortMin <= 0) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("%s: migration_port_min: port must be greater than 0"),
                        filename);
        goto cleanup;
    }

    GET_VALUE_ULONG("migration_port_max", cfg->migrationPortMax);
    if (cfg->migrationPortMax > 65535 ||
        cfg->migrationPortMax < cfg->migrationPortMin) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("%s: migration_port_max: port must be between "
                          "the minimal port %d and 65535"),
                       filename, cfg->migrationPortMin);
        goto cleanup;
    }

    p = virConfGetValue(conf, "user");
    CHECK_TYPE("user", VIR_CONF_STRING);
    if (p && p->str &&
        virGetUserID(p->str, &cfg->user) < 0)
        goto cleanup;

    p = virConfGetValue(conf, "group");
    CHECK_TYPE("group", VIR_CONF_STRING);
    if (p && p->str &&
        virGetGroupID(p->str, &cfg->group) < 0)
        goto cleanup;

    GET_VALUE_BOOL("dynamic_ownership", cfg->dynamicOwnership);

    p = virConfGetValue(conf, "cgroup_controllers");
    CHECK_TYPE("cgroup_controllers", VIR_CONF_LIST);
    if (p) {
        cfg->cgroupControllers = 0;
        virConfValuePtr pp;
        for (i = 0, pp = p->list; pp; ++i, pp = pp->next) {
            int ctl;
            if (pp->type != VIR_CONF_STRING) {
                virReportError(VIR_ERR_CONF_SYNTAX, "%s",
                               _("cgroup_controllers must be a "
                                 "list of strings"));
                goto cleanup;
            }

            if ((ctl = virCgroupControllerTypeFromString(pp->str)) < 0) {
                virReportError(VIR_ERR_CONF_SYNTAX,
                               _("Unknown cgroup controller '%s'"), pp->str);
                goto cleanup;
            }
            cfg->cgroupControllers |= (1 << ctl);
        }
    }

    p = virConfGetValue(conf, "cgroup_device_acl");
    CHECK_TYPE("cgroup_device_acl", VIR_CONF_LIST);
    if (p) {
        int len = 0;
        virConfValuePtr pp;
        for (pp = p->list; pp; pp = pp->next)
            len++;
        if (VIR_ALLOC_N(cfg->cgroupDeviceACL, 1+len) < 0)
            goto cleanup;

        for (i = 0, pp = p->list; pp; ++i, pp = pp->next) {
            if (pp->type != VIR_CONF_STRING) {
                virReportError(VIR_ERR_CONF_SYNTAX, "%s",
                               _("cgroup_device_acl must be a "
                                 "list of strings"));
                goto cleanup;
            }
            if (VIR_STRDUP(cfg->cgroupDeviceACL[i], pp->str) < 0)
                goto cleanup;
        }
        cfg->cgroupDeviceACL[i] = NULL;
    }

    GET_VALUE_STR("save_image_format", cfg->saveImageFormat);
    GET_VALUE_STR("dump_image_format", cfg->dumpImageFormat);
    GET_VALUE_STR("snapshot_image_format", cfg->snapshotImageFormat);

    GET_VALUE_STR("auto_dump_path", cfg->autoDumpPath);
    GET_VALUE_BOOL("auto_dump_bypass_cache", cfg->autoDumpBypassCache);
    GET_VALUE_BOOL("auto_start_bypass_cache", cfg->autoStartBypassCache);

    /* Some crazy backcompat. Back in the old days, this was just a pure
     * string. We must continue supporting it. These days however, this may be
     * an array of strings. */
    p = virConfGetValue(conf, "hugetlbfs_mount");
    if (p) {
        /* There already might be something autodetected. Avoid leaking it. */
        while (cfg->nhugetlbfs) {
            cfg->nhugetlbfs--;
            VIR_FREE(cfg->hugetlbfs[cfg->nhugetlbfs].mnt_dir);
        }
        VIR_FREE(cfg->hugetlbfs);

        if (p->type == VIR_CONF_LIST) {
            size_t len = 0;
            virConfValuePtr pp = p->list;

            /* Calc length and check items */
            while (pp) {
                if (pp->type != VIR_CONF_STRING) {
                    virReportError(VIR_ERR_CONF_SYNTAX, "%s",
                                   _("hugetlbfs_mount must be a list of strings"));
                    goto cleanup;
                }
                len++;
                pp = pp->next;
            }

            if (len && VIR_ALLOC_N(cfg->hugetlbfs, len) < 0)
                goto cleanup;
            cfg->nhugetlbfs = len;

            pp = p->list;
            len = 0;
            while (pp) {
                if (virQEMUDriverConfigHugeTLBFSInit(&cfg->hugetlbfs[len],
                                                     pp->str, !len) < 0)
                    goto cleanup;
                len++;
                pp = pp->next;
            }
        } else {
            CHECK_TYPE("hugetlbfs_mount", VIR_CONF_STRING);
            if (STRNEQ(p->str, "")) {
                if (VIR_ALLOC_N(cfg->hugetlbfs, 1) < 0)
                    goto cleanup;
                cfg->nhugetlbfs = 1;
                if (virQEMUDriverConfigHugeTLBFSInit(&cfg->hugetlbfs[0],
                                                     p->str, true) < 0)
                    goto cleanup;
            }
        }
    }

    GET_VALUE_STR("bridge_helper", cfg->bridgeHelperName);

    GET_VALUE_BOOL("mac_filter", cfg->macFilter);

    GET_VALUE_BOOL("relaxed_acs_check", cfg->relaxedACS);
    GET_VALUE_BOOL("clear_emulator_capabilities", cfg->clearEmulatorCapabilities);
    GET_VALUE_BOOL("allow_disk_format_probing", cfg->allowDiskFormatProbing);
    GET_VALUE_BOOL("set_process_name", cfg->setProcessName);
    GET_VALUE_ULONG("max_processes", cfg->maxProcesses);
    GET_VALUE_ULONG("max_files", cfg->maxFiles);

    GET_VALUE_STR("lock_manager", cfg->lockManagerName);
    GET_VALUE_STR("stdio_handler", stdioHandler);
    if (stdioHandler) {
        if (STREQ(stdioHandler, "logd")) {
            cfg->stdioLogD = true;
        } else if (STREQ(stdioHandler, "file")) {
            cfg->stdioLogD = false;
        } else {
            virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                           _("Unknown stdio handler %s"),
                           stdioHandler);
            VIR_FREE(stdioHandler);
            goto cleanup;
        }
        VIR_FREE(stdioHandler);
    }

    GET_VALUE_ULONG("max_queued", cfg->maxQueuedJobs);

    GET_VALUE_LONG("keepalive_interval", cfg->keepAliveInterval);
    GET_VALUE_ULONG("keepalive_count", cfg->keepAliveCount);

    GET_VALUE_LONG("seccomp_sandbox", cfg->seccompSandbox);

    GET_VALUE_STR("migration_host", cfg->migrateHost);
    virStringStripIPv6Brackets(cfg->migrateHost);
    if (cfg->migrateHost &&
        (STRPREFIX(cfg->migrateHost, "localhost") ||
         virSocketAddrIsNumericLocalhost(cfg->migrateHost))) {
        virReportError(VIR_ERR_CONF_SYNTAX,
                       _("migration_host must not be the address of"
                         " the local machine: %s"),
                       cfg->migrateHost);
        goto cleanup;
    }

    GET_VALUE_STR("migration_address", cfg->migrationAddress);
    virStringStripIPv6Brackets(cfg->migrationAddress);
    if (cfg->migrationAddress &&
        (STRPREFIX(cfg->migrationAddress, "localhost") ||
         virSocketAddrIsNumericLocalhost(cfg->migrationAddress))) {
        virReportError(VIR_ERR_CONF_SYNTAX,
                       _("migration_address must not be the address of"
                         " the local machine: %s"),
                       cfg->migrationAddress);
        goto cleanup;
    }

    GET_VALUE_BOOL("log_timestamp", cfg->logTimestamp);

    if ((p = virConfGetValue(conf, "nvram"))) {
        size_t len;
        virConfValuePtr pp;

        CHECK_TYPE("nvram", VIR_CONF_LIST);

        virFirmwareFreeList(cfg->firmwares, cfg->nfirmwares);
        /* Calc length and check items */
        for (len = 0, pp = p->list; pp; len++, pp = pp->next) {
            if (pp->type != VIR_CONF_STRING) {
                virReportError(VIR_ERR_CONF_SYNTAX, "%s",
                               _("nvram must be a list of strings"));
                goto cleanup;
            }
        }

        if (len && VIR_ALLOC_N(cfg->firmwares, len) < 0)
            goto cleanup;
        cfg->nfirmwares = len;

        for (i = 0, pp = p->list; pp; i++, pp = pp->next) {
            if (VIR_ALLOC(cfg->firmwares[i]) < 0)
                goto cleanup;
            if (virFirmwareParse(pp->str, cfg->firmwares[i]) < 0)
                goto cleanup;
        }
    }

    ret = 0;

 cleanup:
    virConfFree(conf);
    return ret;
}
Esempio n. 4
0
static int daemonSetupNetworking(virNetServerPtr srv,
                                 struct daemonConfig *config,
                                 const char *sock_path,
                                 const char *sock_path_ro,
                                 bool ipsock,
                                 bool privileged)
{
    virNetServerServicePtr svc = NULL;
    virNetServerServicePtr svcRO = NULL;
    virNetServerServicePtr svcTCP = NULL;
    virNetServerServicePtr svcTLS = NULL;
    gid_t unix_sock_gid = 0;
    int unix_sock_ro_mask = 0;
    int unix_sock_rw_mask = 0;

    if (config->unix_sock_group) {
        if (virGetGroupID(config->unix_sock_group, &unix_sock_gid) < 0)
            return -1;
    }

    if (virStrToLong_i(config->unix_sock_ro_perms, NULL, 8, &unix_sock_ro_mask) != 0) {
        VIR_ERROR(_("Failed to parse mode '%s'"), config->unix_sock_ro_perms);
        goto error;
    }

    if (virStrToLong_i(config->unix_sock_rw_perms, NULL, 8, &unix_sock_rw_mask) != 0) {
        VIR_ERROR(_("Failed to parse mode '%s'"), config->unix_sock_rw_perms);
        goto error;
    }

    if (!(svc = virNetServerServiceNewUNIX(sock_path,
                                           unix_sock_rw_mask,
                                           unix_sock_gid,
                                           config->auth_unix_rw,
                                           false,
                                           config->max_client_requests,
                                           NULL)))
        goto error;
    if (sock_path_ro &&
        !(svcRO = virNetServerServiceNewUNIX(sock_path_ro,
                                             unix_sock_ro_mask,
                                             unix_sock_gid,
                                             config->auth_unix_ro,
                                             true,
                                             config->max_client_requests,
                                             NULL)))
        goto error;

    if (virNetServerAddService(srv, svc,
                               config->mdns_adv && !ipsock ?
                               "_libvirt._tcp" :
                               NULL) < 0)
        goto error;

    if (svcRO &&
        virNetServerAddService(srv, svcRO, NULL) < 0)
        goto error;

    if (ipsock) {
        if (config->listen_tcp) {
            if (!(svcTCP = virNetServerServiceNewTCP(config->listen_addr,
                                                     config->tcp_port,
                                                     config->auth_tcp,
                                                     false,
                                                     config->max_client_requests,
                                                     NULL)))
                goto error;

            if (virNetServerAddService(srv, svcTCP,
                                       config->mdns_adv ? "_libvirt._tcp" : NULL) < 0)
                goto error;
        }

        if (config->listen_tls) {
            virNetTLSContextPtr ctxt = NULL;

            if (config->ca_file ||
                config->cert_file ||
                config->key_file) {
                if (!(ctxt = virNetTLSContextNewServer(config->ca_file,
                                                       config->crl_file,
                                                       config->cert_file,
                                                       config->key_file,
                                                       (const char *const*)config->tls_allowed_dn_list,
                                                       config->tls_no_sanity_certificate ? false : true,
                                                       config->tls_no_verify_certificate ? false : true)))
                    goto error;
            } else {
                if (!(ctxt = virNetTLSContextNewServerPath(NULL,
                                                           !privileged,
                                                           (const char *const*)config->tls_allowed_dn_list,
                                                           config->tls_no_sanity_certificate ? false : true,
                                                           config->tls_no_verify_certificate ? false : true)))
                    goto error;
            }

            if (!(svcTLS =
                  virNetServerServiceNewTCP(config->listen_addr,
                                            config->tls_port,
                                            config->auth_tls,
                                            false,
                                            config->max_client_requests,
                                            ctxt))) {
                virNetTLSContextFree(ctxt);
                goto error;
            }
            if (virNetServerAddService(srv, svcTLS,
                                       config->mdns_adv &&
                                       !config->listen_tcp ? "_libvirt._tcp" : NULL) < 0)
                goto error;

            virNetTLSContextFree(ctxt);
        }
    }

#if HAVE_SASL
    if (config->auth_unix_rw == REMOTE_AUTH_SASL ||
        config->auth_unix_ro == REMOTE_AUTH_SASL ||
        config->auth_tcp == REMOTE_AUTH_SASL ||
        config->auth_tls == REMOTE_AUTH_SASL) {
        saslCtxt = virNetSASLContextNewServer(
            (const char *const*)config->sasl_allowed_username_list);
        if (!saslCtxt)
            goto error;
    }
#endif

    return 0;

error:
    virNetServerServiceFree(svcTLS);
    virNetServerServiceFree(svcTCP);
    virNetServerServiceFree(svc);
    virNetServerServiceFree(svcRO);
    return -1;
}
Esempio n. 5
0
static int daemonSetupNetworking(virNetServerPtr srv,
                                 struct daemonConfig *config,
                                 const char *sock_path,
                                 const char *sock_path_ro,
                                 bool ipsock,
                                 bool privileged)
{
    virNetServerServicePtr svc = NULL;
    virNetServerServicePtr svcRO = NULL;
    virNetServerServicePtr svcTCP = NULL;
#if WITH_GNUTLS
    virNetServerServicePtr svcTLS = NULL;
#endif
    gid_t unix_sock_gid = 0;
    int unix_sock_ro_mask = 0;
    int unix_sock_rw_mask = 0;

    if (config->unix_sock_group) {
        if (virGetGroupID(config->unix_sock_group, &unix_sock_gid) < 0)
            return -1;
    }

    if (virStrToLong_i(config->unix_sock_ro_perms, NULL, 8, &unix_sock_ro_mask) != 0) {
        VIR_ERROR(_("Failed to parse mode '%s'"), config->unix_sock_ro_perms);
        goto error;
    }

    if (virStrToLong_i(config->unix_sock_rw_perms, NULL, 8, &unix_sock_rw_mask) != 0) {
        VIR_ERROR(_("Failed to parse mode '%s'"), config->unix_sock_rw_perms);
        goto error;
    }

    VIR_DEBUG("Registering unix socket %s", sock_path);
    if (!(svc = virNetServerServiceNewUNIX(sock_path,
                                           unix_sock_rw_mask,
                                           unix_sock_gid,
                                           config->auth_unix_rw,
#if WITH_GNUTLS
                                           NULL,
#endif
                                           false,
                                           config->max_queued_clients,
                                           config->max_client_requests)))
        goto error;
    if (sock_path_ro) {
        VIR_DEBUG("Registering unix socket %s", sock_path_ro);
        if (!(svcRO = virNetServerServiceNewUNIX(sock_path_ro,
                                                 unix_sock_ro_mask,
                                                 unix_sock_gid,
                                                 config->auth_unix_ro,
#if WITH_GNUTLS
                                                 NULL,
#endif
                                                 true,
                                                 config->max_queued_clients,
                                                 config->max_client_requests)))
            goto error;
    }

    if (virNetServerAddService(srv, svc,
                               config->mdns_adv && !ipsock ?
                               "_libvirt._tcp" :
                               NULL) < 0)
        goto error;

    if (svcRO &&
        virNetServerAddService(srv, svcRO, NULL) < 0)
        goto error;

    if (ipsock) {
        if (config->listen_tcp) {
            VIR_DEBUG("Registering TCP socket %s:%s",
                      config->listen_addr, config->tcp_port);
            if (!(svcTCP = virNetServerServiceNewTCP(config->listen_addr,
                                                     config->tcp_port,
                                                     config->auth_tcp,
#if WITH_GNUTLS
                                                     NULL,
#endif
                                                     false,
                                                     config->max_queued_clients,
                                                     config->max_client_requests)))
                goto error;

            if (virNetServerAddService(srv, svcTCP,
                                       config->mdns_adv ? "_libvirt._tcp" : NULL) < 0)
                goto error;
        }

#if WITH_GNUTLS
        if (config->listen_tls) {
            virNetTLSContextPtr ctxt = NULL;

            if (config->ca_file ||
                config->cert_file ||
                config->key_file) {
                if (!(ctxt = virNetTLSContextNewServer(config->ca_file,
                                                       config->crl_file,
                                                       config->cert_file,
                                                       config->key_file,
                                                       (const char *const*)config->tls_allowed_dn_list,
                                                       config->tls_no_sanity_certificate ? false : true,
                                                       config->tls_no_verify_certificate ? false : true)))
                    goto error;
            } else {
                if (!(ctxt = virNetTLSContextNewServerPath(NULL,
                                                           !privileged,
                                                           (const char *const*)config->tls_allowed_dn_list,
                                                           config->tls_no_sanity_certificate ? false : true,
                                                           config->tls_no_verify_certificate ? false : true)))
                    goto error;
            }

            VIR_DEBUG("Registering TLS socket %s:%s",
                      config->listen_addr, config->tls_port);
            if (!(svcTLS =
                  virNetServerServiceNewTCP(config->listen_addr,
                                            config->tls_port,
                                            config->auth_tls,
                                            ctxt,
                                            false,
                                            config->max_queued_clients,
                                            config->max_client_requests))) {
                virObjectUnref(ctxt);
                goto error;
            }
            if (virNetServerAddService(srv, svcTLS,
                                       config->mdns_adv &&
                                       !config->listen_tcp ? "_libvirt._tcp" : NULL) < 0)
                goto error;

            virObjectUnref(ctxt);
        }
#else
        (void)privileged;
        if (config->listen_tls) {
            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
                           _("This libvirtd build does not support TLS"));
            goto error;
        }
#endif
    }

#if WITH_SASL
    if (config->auth_unix_rw == REMOTE_AUTH_SASL ||
        config->auth_unix_ro == REMOTE_AUTH_SASL ||
# if WITH_GNUTLS
        config->auth_tls == REMOTE_AUTH_SASL ||
# endif
        config->auth_tcp == REMOTE_AUTH_SASL) {
        saslCtxt = virNetSASLContextNewServer(
            (const char *const*)config->sasl_allowed_username_list);
        if (!saslCtxt)
            goto error;
    }
#endif

    return 0;

 error:
#if WITH_GNUTLS
    virObjectUnref(svcTLS);
#endif
    virObjectUnref(svcTCP);
    virObjectUnref(svc);
    virObjectUnref(svcRO);
    return -1;
}
Esempio n. 6
0
virQEMUDriverConfigPtr virQEMUDriverConfigNew(bool privileged)
{
    virQEMUDriverConfigPtr cfg;

    if (virQEMUConfigInitialize() < 0)
        return NULL;

    if (!(cfg = virObjectNew(virQEMUDriverConfigClass)))
        return NULL;

    cfg->uri = privileged ? "qemu:///system" : "qemu:///session";

    if (privileged) {
        if (virGetUserID(QEMU_USER, &cfg->user) < 0)
            goto error;
        if (virGetGroupID(QEMU_GROUP, &cfg->group) < 0)
            goto error;
    } else {
        cfg->user = (uid_t)-1;
        cfg->group = (gid_t)-1;
    }
    cfg->dynamicOwnership = privileged;

    cfg->cgroupControllers = -1; /* -1 == auto-detect */

    if (privileged) {
        if (virAsprintf(&cfg->logDir,
                        "%s/log/libvirt/qemu", LOCALSTATEDIR) < 0)
            goto error;

        if (VIR_STRDUP(cfg->configBaseDir, SYSCONFDIR "/libvirt") < 0)
            goto error;

        if (virAsprintf(&cfg->stateDir,
                      "%s/run/libvirt/qemu", LOCALSTATEDIR) < 0)
            goto error;

        if (virAsprintf(&cfg->cacheDir,
                      "%s/cache/libvirt/qemu", LOCALSTATEDIR) < 0)
            goto error;

        if (virAsprintf(&cfg->libDir,
                      "%s/lib/libvirt/qemu", LOCALSTATEDIR) < 0)
            goto error;
        if (virAsprintf(&cfg->saveDir, "%s/save", cfg->libDir) < 0)
            goto error;
        if (virAsprintf(&cfg->snapshotDir, "%s/snapshot", cfg->libDir) < 0)
            goto error;
        if (virAsprintf(&cfg->autoDumpPath, "%s/dump", cfg->libDir) < 0)
            goto error;
        if (virAsprintf(&cfg->channelTargetDir,
                        "%s/channel/target", cfg->libDir) < 0)
            goto error;
        if (virAsprintf(&cfg->nvramDir, "%s/nvram", cfg->libDir) < 0)
            goto error;
    } else {
        char *rundir;
        char *cachedir;

        cachedir = virGetUserCacheDirectory();
        if (!cachedir)
            goto error;

        if (virAsprintf(&cfg->logDir,
                        "%s/qemu/log", cachedir) < 0) {
            VIR_FREE(cachedir);
            goto error;
        }
        if (virAsprintf(&cfg->cacheDir, "%s/qemu/cache", cachedir) < 0) {
            VIR_FREE(cachedir);
            goto error;
        }
        VIR_FREE(cachedir);

        rundir = virGetUserRuntimeDirectory();
        if (!rundir)
            goto error;
        if (virAsprintf(&cfg->stateDir, "%s/qemu/run", rundir) < 0) {
            VIR_FREE(rundir);
            goto error;
        }
        VIR_FREE(rundir);

        if (!(cfg->configBaseDir = virGetUserConfigDirectory()))
            goto error;

        if (virAsprintf(&cfg->libDir, "%s/qemu/lib", cfg->configBaseDir) < 0)
            goto error;
        if (virAsprintf(&cfg->saveDir, "%s/qemu/save", cfg->configBaseDir) < 0)
            goto error;
        if (virAsprintf(&cfg->snapshotDir, "%s/qemu/snapshot", cfg->configBaseDir) < 0)
            goto error;
        if (virAsprintf(&cfg->autoDumpPath, "%s/qemu/dump", cfg->configBaseDir) < 0)
            goto error;
        if (virAsprintf(&cfg->channelTargetDir,
                        "%s/qemu/channel/target", cfg->configBaseDir) < 0)
            goto error;
        if (virAsprintf(&cfg->nvramDir,
                        "%s/qemu/nvram", cfg->configBaseDir) < 0)
            goto error;
    }

    if (virAsprintf(&cfg->configDir, "%s/qemu", cfg->configBaseDir) < 0)
        goto error;
    if (virAsprintf(&cfg->autostartDir, "%s/qemu/autostart", cfg->configBaseDir) < 0)
        goto error;


    if (VIR_STRDUP(cfg->vncListen, "127.0.0.1") < 0)
        goto error;

    if (VIR_STRDUP(cfg->vncTLSx509certdir, SYSCONFDIR "/pki/libvirt-vnc") < 0)
        goto error;

    if (VIR_STRDUP(cfg->spiceListen, "127.0.0.1") < 0)
        goto error;

    if (VIR_STRDUP(cfg->spiceTLSx509certdir,
                   SYSCONFDIR "/pki/libvirt-spice") < 0)
        goto error;

    cfg->remotePortMin = QEMU_REMOTE_PORT_MIN;
    cfg->remotePortMax = QEMU_REMOTE_PORT_MAX;

    cfg->webSocketPortMin = QEMU_WEBSOCKET_PORT_MIN;
    cfg->webSocketPortMax = QEMU_WEBSOCKET_PORT_MAX;

    cfg->migrationPortMin = QEMU_MIGRATION_PORT_MIN;
    cfg->migrationPortMax = QEMU_MIGRATION_PORT_MAX;

    /* For privileged driver, try and find hugetlbfs mounts automatically.
     * Non-privileged driver requires admin to create a dir for the
     * user, chown it, and then let user configure it manually. */
    if (privileged &&
        virFileFindHugeTLBFS(&cfg->hugetlbfs, &cfg->nhugetlbfs) < 0) {
        /* This however is not implemented on all platforms. */
        virErrorPtr err = virGetLastError();
        if (err && err->code != VIR_ERR_NO_SUPPORT)
            goto error;
    }

    if (VIR_STRDUP(cfg->bridgeHelperName, QEMU_BRIDGE_HELPER) < 0)
        goto error;

    cfg->clearEmulatorCapabilities = true;

    cfg->securityDefaultConfined = true;
    cfg->securityRequireConfined = false;

    cfg->keepAliveInterval = 5;
    cfg->keepAliveCount = 5;
    cfg->seccompSandbox = -1;

    cfg->logTimestamp = true;
    cfg->stdioLogD = true;

#ifdef DEFAULT_LOADER_NVRAM
    if (virFirmwareParseList(DEFAULT_LOADER_NVRAM,
                             &cfg->firmwares,
                             &cfg->nfirmwares) < 0)
        goto error;

#else
    if (VIR_ALLOC_N(cfg->firmwares, 2) < 0)
        goto error;
    cfg->nfirmwares = 2;
    if (VIR_ALLOC(cfg->firmwares[0]) < 0 || VIR_ALLOC(cfg->firmwares[1]) < 0)
        goto error;

    if (VIR_STRDUP(cfg->firmwares[0]->name, VIR_QEMU_AAVMF_LOADER_PATH) < 0 ||
        VIR_STRDUP(cfg->firmwares[0]->nvram, VIR_QEMU_AAVMF_NVRAM_PATH) < 0  ||
        VIR_STRDUP(cfg->firmwares[1]->name, VIR_QEMU_OVMF_LOADER_PATH) < 0 ||
        VIR_STRDUP(cfg->firmwares[1]->nvram, VIR_QEMU_OVMF_NVRAM_PATH) < 0)
        goto error;
#endif

    return cfg;

 error:
    virObjectUnref(cfg);
    return NULL;
}
Esempio n. 7
0
int qemudLoadDriverConfig(struct qemud_driver *driver,
                          const char *filename) {
    virConfPtr conf;
    virConfValuePtr p;
    char *user;
    char *group;
    int i;

    /* Setup critical defaults */
    driver->dynamicOwnership = 1;
    driver->clearEmulatorCapabilities = 1;

    if (!(driver->vncListen = strdup("127.0.0.1"))) {
        virReportOOMError();
        return -1;
    }
    if (!(driver->vncTLSx509certdir = strdup(SYSCONFDIR "/pki/libvirt-vnc"))) {
        virReportOOMError();
        return -1;
    }

    if (!(driver->spiceListen = strdup("127.0.0.1"))) {
        virReportOOMError();
        return -1;
    }
    if (!(driver->spiceTLSx509certdir
          = strdup(SYSCONFDIR "/pki/libvirt-spice"))) {
        virReportOOMError();
        return -1;
    }

#if defined HAVE_MNTENT_H && defined HAVE_GETMNTENT_R
    /* For privileged driver, try and find hugepage mount automatically.
     * Non-privileged driver requires admin to create a dir for the
     * user, chown it, and then let user configure it manually */
    if (driver->privileged &&
        !(driver->hugetlbfs_mount = virFileFindMountPoint("hugetlbfs"))) {
        if (errno != ENOENT) {
            virReportSystemError(errno, "%s",
                                 _("unable to find hugetlbfs mountpoint"));
            return -1;
        }
    }
#endif


    /* Just check the file is readable before opening it, otherwise
     * libvirt emits an error.
     */
    if (access (filename, R_OK) == -1) {
        VIR_INFO("Could not read qemu config file %s", filename);
        return 0;
    }

    conf = virConfReadFile (filename, 0);
    if (!conf) {
        return -1;
    }


#define CHECK_TYPE(name,typ) if (p && p->type != (typ)) {               \
        qemuReportError(VIR_ERR_INTERNAL_ERROR,                         \
                        "%s: %s: expected type " #typ,                  \
                        filename, (name));                              \
        virConfFree(conf);                                              \
        return -1;                                                      \
    }

    p = virConfGetValue (conf, "vnc_auto_unix_socket");
    CHECK_TYPE ("vnc_auto_unix_socket", VIR_CONF_LONG);
    if (p) driver->vncAutoUnixSocket = p->l;

    p = virConfGetValue (conf, "vnc_tls");
    CHECK_TYPE ("vnc_tls", VIR_CONF_LONG);
    if (p) driver->vncTLS = p->l;

    p = virConfGetValue (conf, "vnc_tls_x509_verify");
    CHECK_TYPE ("vnc_tls_x509_verify", VIR_CONF_LONG);
    if (p) driver->vncTLSx509verify = p->l;

    p = virConfGetValue (conf, "vnc_tls_x509_cert_dir");
    CHECK_TYPE ("vnc_tls_x509_cert_dir", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->vncTLSx509certdir);
        if (!(driver->vncTLSx509certdir = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "vnc_listen");
    CHECK_TYPE ("vnc_listen", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->vncListen);
        if (!(driver->vncListen = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "vnc_password");
    CHECK_TYPE ("vnc_password", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->vncPassword);
        if (!(driver->vncPassword = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "security_driver");
    CHECK_TYPE ("security_driver", VIR_CONF_STRING);
    if (p && p->str) {
        if (!(driver->securityDriverName = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "vnc_sasl");
    CHECK_TYPE ("vnc_sasl", VIR_CONF_LONG);
    if (p) driver->vncSASL = p->l;

    p = virConfGetValue (conf, "vnc_sasl_dir");
    CHECK_TYPE ("vnc_sasl_dir", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->vncSASLdir);
        if (!(driver->vncSASLdir = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "spice_tls");
    CHECK_TYPE ("spice_tls", VIR_CONF_LONG);
    if (p) driver->spiceTLS = p->l;

    p = virConfGetValue (conf, "spice_tls_x509_cert_dir");
    CHECK_TYPE ("spice_tls_x509_cert_dir", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->spiceTLSx509certdir);
        if (!(driver->spiceTLSx509certdir = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "spice_listen");
    CHECK_TYPE ("spice_listen", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->spiceListen);
        if (!(driver->spiceListen = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "spice_password");
    CHECK_TYPE ("spice_password", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->spicePassword);
        if (!(driver->spicePassword = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "user");
    CHECK_TYPE ("user", VIR_CONF_STRING);
    if (!(user = strdup(p && p->str ? p->str : QEMU_USER))) {
        virReportOOMError();
        virConfFree(conf);
        return -1;
    }
    if (virGetUserID(user, &driver->user) < 0) {
        VIR_FREE(user);
        virConfFree(conf);
        return -1;
    }
    VIR_FREE(user);


    p = virConfGetValue (conf, "group");
    CHECK_TYPE ("group", VIR_CONF_STRING);
    if (!(group = strdup(p && p->str ? p->str : QEMU_GROUP))) {
        virReportOOMError();
        virConfFree(conf);
        return -1;
    }
    if (virGetGroupID(group, &driver->group) < 0) {
        VIR_FREE(group);
        virConfFree(conf);
        return -1;
    }
    VIR_FREE(group);


    p = virConfGetValue (conf, "dynamic_ownership");
    CHECK_TYPE ("dynamic_ownership", VIR_CONF_LONG);
    if (p) driver->dynamicOwnership = p->l;


    p = virConfGetValue (conf, "cgroup_controllers");
    CHECK_TYPE ("cgroup_controllers", VIR_CONF_LIST);
    if (p) {
        virConfValuePtr pp;
        for (i = 0, pp = p->list; pp; ++i, pp = pp->next) {
            int ctl;
            if (pp->type != VIR_CONF_STRING) {
                VIR_ERROR0(_("cgroup_controllers must be a list of strings"));
                virConfFree(conf);
                return -1;
            }
            ctl = virCgroupControllerTypeFromString(pp->str);
            if (ctl < 0) {
                VIR_ERROR(_("Unknown cgroup controller '%s'"), pp->str);
                virConfFree(conf);
                return -1;
            }
            driver->cgroupControllers |= (1 << ctl);
        }
    } else {
        driver->cgroupControllers =
            (1 << VIR_CGROUP_CONTROLLER_CPU) |
            (1 << VIR_CGROUP_CONTROLLER_DEVICES) |
            (1 << VIR_CGROUP_CONTROLLER_MEMORY) |
            (1 << VIR_CGROUP_CONTROLLER_BLKIO);
    }
    for (i = 0 ; i < VIR_CGROUP_CONTROLLER_LAST ; i++) {
        if (driver->cgroupControllers & (1 << i)) {
            VIR_INFO("Configured cgroup controller '%s'",
                     virCgroupControllerTypeToString(i));
        }
    }

    p = virConfGetValue (conf, "cgroup_device_acl");
    CHECK_TYPE ("cgroup_device_acl", VIR_CONF_LIST);
    if (p) {
        int len = 0;
        virConfValuePtr pp;
        for (pp = p->list; pp; pp = pp->next)
            len++;
        if (VIR_ALLOC_N(driver->cgroupDeviceACL, 1+len) < 0) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
        for (i = 0, pp = p->list; pp; ++i, pp = pp->next) {
            if (pp->type != VIR_CONF_STRING) {
                VIR_ERROR0(_("cgroup_device_acl must be a list of strings"));
                virConfFree(conf);
                return -1;
            }
            driver->cgroupDeviceACL[i] = strdup (pp->str);
            if (driver->cgroupDeviceACL[i] == NULL) {
                virReportOOMError();
                virConfFree(conf);
                return -1;
            }

        }
        driver->cgroupDeviceACL[i] = NULL;
    }

    p = virConfGetValue (conf, "save_image_format");
    CHECK_TYPE ("save_image_format", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->saveImageFormat);
        if (!(driver->saveImageFormat = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "dump_image_format");
    CHECK_TYPE ("dump_image_format", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->dumpImageFormat);
        if (!(driver->dumpImageFormat = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "auto_dump_path");
    CHECK_TYPE ("auto_dump_path", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->autoDumpPath);
        if (!(driver->autoDumpPath = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

     p = virConfGetValue (conf, "hugetlbfs_mount");
     CHECK_TYPE ("hugetlbfs_mount", VIR_CONF_STRING);
     if (p && p->str) {
         VIR_FREE(driver->hugetlbfs_mount);
         if (!(driver->hugetlbfs_mount = strdup(p->str))) {
             virReportOOMError();
             virConfFree(conf);
             return -1;
         }
     }

    p = virConfGetValue (conf, "mac_filter");
    CHECK_TYPE ("mac_filter", VIR_CONF_LONG);
    if (p && p->l) {
        driver->macFilter = p->l;
        if (!(driver->ebtables = ebtablesContextNew("qemu"))) {
            driver->macFilter = 0;
            virReportSystemError(errno,
                                 _("failed to enable mac filter in '%s'"),
                                 __FILE__);
        }

        if ((errno = networkDisableAllFrames(driver))) {
            virReportSystemError(errno,
                         _("failed to add rule to drop all frames in '%s'"),
                                 __FILE__);
        }
    }

    p = virConfGetValue (conf, "relaxed_acs_check");
    CHECK_TYPE ("relaxed_acs_check", VIR_CONF_LONG);
    if (p) driver->relaxedACS = p->l;

    p = virConfGetValue (conf, "vnc_allow_host_audio");
    CHECK_TYPE ("vnc_allow_host_audio", VIR_CONF_LONG);
    if (p) driver->vncAllowHostAudio = p->l;

    p = virConfGetValue (conf, "clear_emulator_capabilities");
    CHECK_TYPE ("clear_emulator_capabilities", VIR_CONF_LONG);
    if (p) driver->clearEmulatorCapabilities = p->l;

    p = virConfGetValue (conf, "allow_disk_format_probing");
    CHECK_TYPE ("allow_disk_format_probing", VIR_CONF_LONG);
    if (p) driver->allowDiskFormatProbing = p->l;

    p = virConfGetValue (conf, "set_process_name");
    CHECK_TYPE ("set_process_name", VIR_CONF_LONG);
    if (p) driver->setProcessName = p->l;

    p = virConfGetValue(conf, "max_processes");
    CHECK_TYPE("max_processes", VIR_CONF_LONG);
    if (p) driver->maxProcesses = p->l;

    virConfFree (conf);
    return 0;
}
Esempio n. 8
0
int virQEMUDriverConfigLoadFile(virQEMUDriverConfigPtr cfg,
                                const char *filename)
{
    virConfPtr conf = NULL;
    virConfValuePtr p;
    int ret = -1;
    size_t i;

    /* Just check the file is readable before opening it, otherwise
     * libvirt emits an error.
     */
    if (access(filename, R_OK) == -1) {
        VIR_INFO("Could not read qemu config file %s", filename);
        return 0;
    }

    if (!(conf = virConfReadFile(filename, 0)))
        goto cleanup;

#define CHECK_TYPE(name,typ)                          \
    if (p && p->type != (typ)) {                      \
        virReportError(VIR_ERR_INTERNAL_ERROR,        \
                       "%s: %s: expected type " #typ, \
                       filename, (name));             \
        goto cleanup;                                 \
    }

#define GET_VALUE_LONG(NAME, VAR)     \
    p = virConfGetValue(conf, NAME);  \
    CHECK_TYPE(NAME, VIR_CONF_LONG);  \
    if (p)                            \
        VAR = p->l;

#define GET_VALUE_BOOL(NAME, VAR)     \
    p = virConfGetValue(conf, NAME);  \
    CHECK_TYPE(NAME, VIR_CONF_LONG);  \
    if (p)                            \
        VAR = p->l != 0;

#define GET_VALUE_STR(NAME, VAR)           \
    p = virConfGetValue(conf, NAME);       \
    CHECK_TYPE(NAME, VIR_CONF_STRING);     \
    if (p && p->str) {                     \
        VIR_FREE(VAR);                     \
        if (VIR_STRDUP(VAR, p->str) < 0)   \
            goto cleanup;                  \
    }

    GET_VALUE_BOOL("vnc_auto_unix_socket", cfg->vncAutoUnixSocket);
    GET_VALUE_BOOL("vnc_tls", cfg->vncTLS);
    GET_VALUE_BOOL("vnc_tls_x509_verify", cfg->vncTLSx509verify);
    GET_VALUE_STR("vnc_tls_x509_cert_dir", cfg->vncTLSx509certdir);
    GET_VALUE_STR("vnc_listen", cfg->vncListen);
    GET_VALUE_STR("vnc_password", cfg->vncPassword);
    GET_VALUE_BOOL("vnc_sasl", cfg->vncSASL);
    GET_VALUE_STR("vnc_sasl_dir", cfg->vncSASLdir);
    GET_VALUE_BOOL("vnc_allow_host_audio", cfg->vncAllowHostAudio);
    GET_VALUE_BOOL("nographics_allow_host_audio", cfg->nogfxAllowHostAudio);

    p = virConfGetValue(conf, "security_driver");
    if (p && p->type == VIR_CONF_LIST) {
        size_t len;
        virConfValuePtr pp;

        /* Calc length and check items */
        for (len = 0, pp = p->list; pp; len++, pp = pp->next) {
            if (pp->type != VIR_CONF_STRING) {
                virReportError(VIR_ERR_CONF_SYNTAX, "%s",
                               _("security_driver must be a list of strings"));
                goto cleanup;
            }
        }

        if (VIR_ALLOC_N(cfg->securityDriverNames, len + 1) < 0)
            goto cleanup;

        for (i = 0, pp = p->list; pp; i++, pp = pp->next) {
            if (VIR_STRDUP(cfg->securityDriverNames[i], pp->str) < 0)
                goto cleanup;
        }
        cfg->securityDriverNames[len] = NULL;
    } else {
        CHECK_TYPE("security_driver", VIR_CONF_STRING);
        if (p && p->str) {
            if (VIR_ALLOC_N(cfg->securityDriverNames, 2) < 0)
                goto cleanup;
            if (VIR_STRDUP(cfg->securityDriverNames[0], p->str) < 0)
                goto cleanup;

            cfg->securityDriverNames[1] = NULL;
        }
    }

    GET_VALUE_BOOL("security_default_confined", cfg->securityDefaultConfined);
    GET_VALUE_BOOL("security_require_confined", cfg->securityRequireConfined);

    GET_VALUE_BOOL("spice_tls", cfg->spiceTLS);
    GET_VALUE_STR("spice_tls_x509_cert_dir", cfg->spiceTLSx509certdir);
    GET_VALUE_BOOL("spice_sasl", cfg->spiceSASL);
    GET_VALUE_STR("spice_sasl_dir", cfg->spiceSASLdir);
    GET_VALUE_STR("spice_listen", cfg->spiceListen);
    GET_VALUE_STR("spice_password", cfg->spicePassword);


    GET_VALUE_LONG("remote_websocket_port_min", cfg->webSocketPortMin);
    if (cfg->webSocketPortMin < QEMU_WEBSOCKET_PORT_MIN) {
        /* if the port is too low, we can't get the display name
         * to tell to vnc (usually subtract 5700, e.g. localhost:1
         * for port 5701) */
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("%s: remote_websocket_port_min: port must be greater "
                         "than or equal to %d"),
                        filename, QEMU_WEBSOCKET_PORT_MIN);
        goto cleanup;
    }

    GET_VALUE_LONG("remote_websocket_port_max", cfg->webSocketPortMax);
    if (cfg->webSocketPortMax > QEMU_WEBSOCKET_PORT_MAX ||
        cfg->webSocketPortMax < cfg->webSocketPortMin) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("%s: remote_websocket_port_max: port must be between "
                          "the minimal port and %d"),
                       filename, QEMU_WEBSOCKET_PORT_MAX);
        goto cleanup;
    }

    if (cfg->webSocketPortMin > cfg->webSocketPortMax) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("%s: remote_websocket_port_min: min port must not be "
                          "greater than max port"), filename);
        goto cleanup;
    }

    GET_VALUE_LONG("remote_display_port_min", cfg->remotePortMin);
    if (cfg->remotePortMin < QEMU_REMOTE_PORT_MIN) {
        /* if the port is too low, we can't get the display name
         * to tell to vnc (usually subtract 5900, e.g. localhost:1
         * for port 5901) */
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("%s: remote_display_port_min: port must be greater "
                         "than or equal to %d"),
                        filename, QEMU_REMOTE_PORT_MIN);
        goto cleanup;
    }

    GET_VALUE_LONG("remote_display_port_max", cfg->remotePortMax);
    if (cfg->remotePortMax > QEMU_REMOTE_PORT_MAX ||
        cfg->remotePortMax < cfg->remotePortMin) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("%s: remote_display_port_max: port must be between "
                          "the minimal port and %d"),
                       filename, QEMU_REMOTE_PORT_MAX);
        goto cleanup;
    }

    if (cfg->remotePortMin > cfg->remotePortMax) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("%s: remote_display_port_min: min port must not be "
                          "greater than max port"), filename);
        goto cleanup;
    }

    GET_VALUE_LONG("migration_port_min", cfg->migrationPortMin);
    if (cfg->migrationPortMin <= 0) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("%s: migration_port_min: port must be greater than 0"),
                        filename);
        goto cleanup;
    }

    GET_VALUE_LONG("migration_port_max", cfg->migrationPortMax);
    if (cfg->migrationPortMax > 65535 ||
        cfg->migrationPortMax < cfg->migrationPortMin) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("%s: migration_port_max: port must be between "
                          "the minimal port %d and 65535"),
                       filename, cfg->migrationPortMin);
        goto cleanup;
    }

    p = virConfGetValue(conf, "user");
    CHECK_TYPE("user", VIR_CONF_STRING);
    if (p && p->str &&
        virGetUserID(p->str, &cfg->user) < 0)
        goto cleanup;

    p = virConfGetValue(conf, "group");
    CHECK_TYPE("group", VIR_CONF_STRING);
    if (p && p->str &&
        virGetGroupID(p->str, &cfg->group) < 0)
        goto cleanup;

    GET_VALUE_BOOL("dynamic_ownership", cfg->dynamicOwnership);

    p = virConfGetValue(conf, "cgroup_controllers");
    CHECK_TYPE("cgroup_controllers", VIR_CONF_LIST);
    if (p) {
        cfg->cgroupControllers = 0;
        virConfValuePtr pp;
        for (i = 0, pp = p->list; pp; ++i, pp = pp->next) {
            int ctl;
            if (pp->type != VIR_CONF_STRING) {
                virReportError(VIR_ERR_CONF_SYNTAX, "%s",
                               _("cgroup_controllers must be a "
                                 "list of strings"));
                goto cleanup;
            }

            if ((ctl = virCgroupControllerTypeFromString(pp->str)) < 0) {
                virReportError(VIR_ERR_CONF_SYNTAX,
                               _("Unknown cgroup controller '%s'"), pp->str);
                goto cleanup;
            }
            cfg->cgroupControllers |= (1 << ctl);
        }
    }

    p = virConfGetValue(conf, "cgroup_device_acl");
    CHECK_TYPE("cgroup_device_acl", VIR_CONF_LIST);
    if (p) {
        int len = 0;
        virConfValuePtr pp;
        for (pp = p->list; pp; pp = pp->next)
            len++;
        if (VIR_ALLOC_N(cfg->cgroupDeviceACL, 1+len) < 0)
            goto cleanup;

        for (i = 0, pp = p->list; pp; ++i, pp = pp->next) {
            if (pp->type != VIR_CONF_STRING) {
                virReportError(VIR_ERR_CONF_SYNTAX, "%s",
                               _("cgroup_device_acl must be a "
                                 "list of strings"));
                goto cleanup;
            }
            if (VIR_STRDUP(cfg->cgroupDeviceACL[i], pp->str) < 0)
                goto cleanup;
        }
        cfg->cgroupDeviceACL[i] = NULL;
    }

    GET_VALUE_STR("save_image_format", cfg->saveImageFormat);
    GET_VALUE_STR("dump_image_format", cfg->dumpImageFormat);
    GET_VALUE_STR("snapshot_image_format", cfg->snapshotImageFormat);

    GET_VALUE_STR("auto_dump_path", cfg->autoDumpPath);
    GET_VALUE_BOOL("auto_dump_bypass_cache", cfg->autoDumpBypassCache);
    GET_VALUE_BOOL("auto_start_bypass_cache", cfg->autoStartBypassCache);

    GET_VALUE_STR("hugetlbfs_mount", cfg->hugetlbfsMount);
    GET_VALUE_STR("bridge_helper", cfg->bridgeHelperName);

    GET_VALUE_BOOL("mac_filter", cfg->macFilter);

    GET_VALUE_BOOL("relaxed_acs_check", cfg->relaxedACS);
    GET_VALUE_BOOL("clear_emulator_capabilities", cfg->clearEmulatorCapabilities);
    GET_VALUE_BOOL("allow_disk_format_probing", cfg->allowDiskFormatProbing);
    GET_VALUE_BOOL("set_process_name", cfg->setProcessName);
    GET_VALUE_LONG("max_processes", cfg->maxProcesses);
    GET_VALUE_LONG("max_files", cfg->maxFiles);

    GET_VALUE_STR("lock_manager", cfg->lockManagerName);

    GET_VALUE_LONG("max_queued", cfg->maxQueuedJobs);

    GET_VALUE_LONG("keepalive_interval", cfg->keepAliveInterval);
    GET_VALUE_LONG("keepalive_count", cfg->keepAliveCount);

    GET_VALUE_LONG("seccomp_sandbox", cfg->seccompSandbox);

    GET_VALUE_STR("migration_address", cfg->migrationAddress);

    ret = 0;

cleanup:
    virConfFree(conf);
    return ret;
}
Esempio n. 9
0
virQEMUDriverConfigPtr virQEMUDriverConfigNew(bool privileged)
{
    virQEMUDriverConfigPtr cfg;

    if (virQEMUConfigInitialize() < 0)
        return NULL;

    if (!(cfg = virObjectNew(virQEMUDriverConfigClass)))
        return NULL;

    cfg->privileged = privileged;
    cfg->uri = privileged ? "qemu:///system" : "qemu:///session";

    if (privileged) {
        if (virGetUserID(QEMU_USER, &cfg->user) < 0)
            goto error;
        if (virGetGroupID(QEMU_GROUP, &cfg->group) < 0)
            goto error;
    } else {
        cfg->user = (uid_t)-1;
        cfg->group = (gid_t)-1;
    }
    cfg->dynamicOwnership = privileged;

    cfg->cgroupControllers = -1; /* -1 == auto-detect */

    if (privileged) {
        if (virAsprintf(&cfg->logDir,
                        "%s/log/libvirt/qemu", LOCALSTATEDIR) < 0)
            goto error;

        if (VIR_STRDUP(cfg->configBaseDir, SYSCONFDIR "/libvirt") < 0)
            goto error;

        if (virAsprintf(&cfg->stateDir,
                      "%s/run/libvirt/qemu", LOCALSTATEDIR) < 0)
            goto error;

        if (virAsprintf(&cfg->libDir,
                      "%s/lib/libvirt/qemu", LOCALSTATEDIR) < 0)
            goto error;

        if (virAsprintf(&cfg->cacheDir,
                      "%s/cache/libvirt/qemu", LOCALSTATEDIR) < 0)
            goto error;
        if (virAsprintf(&cfg->saveDir,
                      "%s/lib/libvirt/qemu/save", LOCALSTATEDIR) < 0)
            goto error;
        if (virAsprintf(&cfg->snapshotDir,
                        "%s/lib/libvirt/qemu/snapshot", LOCALSTATEDIR) < 0)
            goto error;
        if (virAsprintf(&cfg->autoDumpPath,
                        "%s/lib/libvirt/qemu/dump", LOCALSTATEDIR) < 0)
            goto error;
    } else {
        char *rundir;
        char *cachedir;

        cachedir = virGetUserCacheDirectory();
        if (!cachedir)
            goto error;

        if (virAsprintf(&cfg->logDir,
                        "%s/qemu/log", cachedir) < 0) {
            VIR_FREE(cachedir);
            goto error;
        }
        if (virAsprintf(&cfg->cacheDir, "%s/qemu/cache", cachedir) < 0) {
            VIR_FREE(cachedir);
            goto error;
        }
        VIR_FREE(cachedir);

        rundir = virGetUserRuntimeDirectory();
        if (!rundir)
            goto error;
        if (virAsprintf(&cfg->stateDir, "%s/qemu/run", rundir) < 0) {
            VIR_FREE(rundir);
            goto error;
        }
        VIR_FREE(rundir);

        if (!(cfg->configBaseDir = virGetUserConfigDirectory()))
            goto error;

        if (virAsprintf(&cfg->libDir, "%s/qemu/lib", cfg->configBaseDir) < 0)
            goto error;
        if (virAsprintf(&cfg->saveDir, "%s/qemu/save", cfg->configBaseDir) < 0)
            goto error;
        if (virAsprintf(&cfg->snapshotDir, "%s/qemu/snapshot", cfg->configBaseDir) < 0)
            goto error;
        if (virAsprintf(&cfg->autoDumpPath, "%s/qemu/dump", cfg->configBaseDir) < 0)
            goto error;
    }

    if (virAsprintf(&cfg->configDir, "%s/qemu", cfg->configBaseDir) < 0)
        goto error;
    if (virAsprintf(&cfg->autostartDir, "%s/qemu/autostart", cfg->configBaseDir) < 0)
        goto error;


    if (VIR_STRDUP(cfg->vncListen, "127.0.0.1") < 0)
        goto error;

    if (VIR_STRDUP(cfg->vncTLSx509certdir, SYSCONFDIR "/pki/libvirt-vnc") < 0)
        goto error;

    if (VIR_STRDUP(cfg->spiceListen, "127.0.0.1") < 0)
        goto error;

    if (VIR_STRDUP(cfg->spiceTLSx509certdir,
                   SYSCONFDIR "/pki/libvirt-spice") < 0)
        goto error;

    cfg->remotePortMin = QEMU_REMOTE_PORT_MIN;
    cfg->remotePortMax = QEMU_REMOTE_PORT_MAX;

    cfg->webSocketPortMin = QEMU_WEBSOCKET_PORT_MIN;
    cfg->webSocketPortMax = QEMU_WEBSOCKET_PORT_MAX;

    cfg->migrationPortMin = QEMU_MIGRATION_PORT_MIN;
    cfg->migrationPortMax = QEMU_MIGRATION_PORT_MAX;

#if defined HAVE_MNTENT_H && defined HAVE_GETMNTENT_R
    /* For privileged driver, try and find hugepage mount automatically.
     * Non-privileged driver requires admin to create a dir for the
     * user, chown it, and then let user configure it manually */
    if (privileged &&
        !(cfg->hugetlbfsMount = virFileFindMountPoint("hugetlbfs"))) {
        if (errno != ENOENT) {
            virReportSystemError(errno, "%s",
                                 _("unable to find hugetlbfs mountpoint"));
            goto error;
        }
    }
#endif
    if (VIR_STRDUP(cfg->bridgeHelperName, "/usr/libexec/qemu-bridge-helper") < 0)
        goto error;

    cfg->clearEmulatorCapabilities = true;

    cfg->securityDefaultConfined = true;
    cfg->securityRequireConfined = false;

    cfg->keepAliveInterval = 5;
    cfg->keepAliveCount = 5;
    cfg->seccompSandbox = -1;

    return cfg;

error:
    virObjectUnref(cfg);
    return NULL;
}
Esempio n. 10
0
int qemudLoadDriverConfig(struct qemud_driver *driver,
                          const char *filename) {
    virConfPtr conf;
    virConfValuePtr p;
    char *user;
    char *group;
    int i;

    /* Setup critical defaults */
    driver->securityDefaultConfined = true;
    driver->securityRequireConfined = false;
    driver->dynamicOwnership = 1;
    driver->clearEmulatorCapabilities = 1;

    if (!(driver->vncListen = strdup("127.0.0.1"))) {
        virReportOOMError();
        return -1;
    }

    driver->remotePortMin = QEMU_REMOTE_PORT_MIN;
    driver->remotePortMax = QEMU_REMOTE_PORT_MAX;

    if (!(driver->vncTLSx509certdir = strdup(SYSCONFDIR "/pki/libvirt-vnc"))) {
        virReportOOMError();
        return -1;
    }

    if (!(driver->spiceListen = strdup("127.0.0.1"))) {
        virReportOOMError();
        return -1;
    }
    if (!(driver->spiceTLSx509certdir
          = strdup(SYSCONFDIR "/pki/libvirt-spice"))) {
        virReportOOMError();
        return -1;
    }

#if defined HAVE_MNTENT_H && defined HAVE_GETMNTENT_R
    /* For privileged driver, try and find hugepage mount automatically.
     * Non-privileged driver requires admin to create a dir for the
     * user, chown it, and then let user configure it manually */
    if (driver->privileged &&
        !(driver->hugetlbfs_mount = virFileFindMountPoint("hugetlbfs"))) {
        if (errno != ENOENT) {
            virReportSystemError(errno, "%s",
                                 _("unable to find hugetlbfs mountpoint"));
            return -1;
        }
    }
#endif

    if (!(driver->lockManager =
          virLockManagerPluginNew("nop", NULL, 0)))
        return -1;

    driver->keepAliveInterval = 5;
    driver->keepAliveCount = 5;

    /* Just check the file is readable before opening it, otherwise
     * libvirt emits an error.
     */
    if (access (filename, R_OK) == -1) {
        VIR_INFO("Could not read qemu config file %s", filename);
        return 0;
    }

    conf = virConfReadFile (filename, 0);
    if (!conf) {
        return -1;
    }


#define CHECK_TYPE(name,typ) if (p && p->type != (typ)) {               \
        virReportError(VIR_ERR_INTERNAL_ERROR,                          \
                       "%s: %s: expected type " #typ,                   \
                       filename, (name));                               \
        virConfFree(conf);                                              \
        return -1;                                                      \
    }

    p = virConfGetValue (conf, "vnc_auto_unix_socket");
    CHECK_TYPE ("vnc_auto_unix_socket", VIR_CONF_LONG);
    if (p) driver->vncAutoUnixSocket = p->l;

    p = virConfGetValue (conf, "vnc_tls");
    CHECK_TYPE ("vnc_tls", VIR_CONF_LONG);
    if (p) driver->vncTLS = p->l;

    p = virConfGetValue (conf, "vnc_tls_x509_verify");
    CHECK_TYPE ("vnc_tls_x509_verify", VIR_CONF_LONG);
    if (p) driver->vncTLSx509verify = p->l;

    p = virConfGetValue (conf, "vnc_tls_x509_cert_dir");
    CHECK_TYPE ("vnc_tls_x509_cert_dir", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->vncTLSx509certdir);
        if (!(driver->vncTLSx509certdir = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "vnc_listen");
    CHECK_TYPE ("vnc_listen", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->vncListen);
        if (!(driver->vncListen = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "vnc_password");
    CHECK_TYPE ("vnc_password", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->vncPassword);
        if (!(driver->vncPassword = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "security_driver");
    if (p && p->type == VIR_CONF_LIST) {
        size_t len;
        virConfValuePtr pp;

        /* Calc lenght and check items */
        for (len = 0, pp = p->list; pp; len++, pp = pp->next) {
            if (pp->type != VIR_CONF_STRING) {
                VIR_ERROR(_("security_driver be a list of strings"));
                virConfFree(conf);
                return -1;
            }
        }

        if (VIR_ALLOC_N(driver->securityDriverNames, len + 1) < 0) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }

        for (i = 0, pp = p->list; pp; i++, pp = pp->next) {
            driver->securityDriverNames[i] = strdup(pp->str);
            if (driver->securityDriverNames == NULL) {
                virReportOOMError();
                virConfFree(conf);
                return -1;
            }
        }
        driver->securityDriverNames[len] = NULL;
    } else {
        CHECK_TYPE ("security_driver", VIR_CONF_STRING);
        if (p && p->str) {
            if (VIR_ALLOC_N(driver->securityDriverNames, 2) < 0 ||
                !(driver->securityDriverNames[0] = strdup(p->str))) {
                virReportOOMError();
                virConfFree(conf);
                return -1;
            }
            driver->securityDriverNames[1] = NULL;
        }
    }

    p = virConfGetValue (conf, "security_default_confined");
    CHECK_TYPE ("security_default_confined", VIR_CONF_LONG);
    if (p) driver->securityDefaultConfined = p->l;

    p = virConfGetValue (conf, "security_require_confined");
    CHECK_TYPE ("security_require_confined", VIR_CONF_LONG);
    if (p) driver->securityRequireConfined = p->l;


    p = virConfGetValue (conf, "vnc_sasl");
    CHECK_TYPE ("vnc_sasl", VIR_CONF_LONG);
    if (p) driver->vncSASL = p->l;

    p = virConfGetValue (conf, "vnc_sasl_dir");
    CHECK_TYPE ("vnc_sasl_dir", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->vncSASLdir);
        if (!(driver->vncSASLdir = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "spice_tls");
    CHECK_TYPE ("spice_tls", VIR_CONF_LONG);
    if (p) driver->spiceTLS = p->l;

    p = virConfGetValue (conf, "spice_tls_x509_cert_dir");
    CHECK_TYPE ("spice_tls_x509_cert_dir", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->spiceTLSx509certdir);
        if (!(driver->spiceTLSx509certdir = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "spice_listen");
    CHECK_TYPE ("spice_listen", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->spiceListen);
        if (!(driver->spiceListen = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "spice_password");
    CHECK_TYPE ("spice_password", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->spicePassword);
        if (!(driver->spicePassword = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "remote_display_port_min");
    CHECK_TYPE ("remote_display_port_min", VIR_CONF_LONG);
    if (p) {
        if (p->l < QEMU_REMOTE_PORT_MIN) {
            /* if the port is too low, we can't get the display name
             * to tell to vnc (usually subtract 5900, e.g. localhost:1
             * for port 5901) */
            virReportError(VIR_ERR_INTERNAL_ERROR,
                           _("%s: remote_display_port_min: port must be greater than or equal to %d"),
                            filename, QEMU_REMOTE_PORT_MIN);
            virConfFree(conf);
            return -1;
        }
        driver->remotePortMin = p->l;
    }

    p = virConfGetValue (conf, "remote_display_port_max");
    CHECK_TYPE ("remote_display_port_max", VIR_CONF_LONG);
    if (p) {
        if (p->l > QEMU_REMOTE_PORT_MAX ||
            p->l < driver->remotePortMin) {
            virReportError(VIR_ERR_INTERNAL_ERROR,
                            _("%s: remote_display_port_max: port must be between the minimal port and %d"),
                            filename, QEMU_REMOTE_PORT_MAX);
            virConfFree(conf);
            return -1;
        }
        /* increasing the value by 1 makes all the loops going through
        the bitmap (i = remotePortMin; i < remotePortMax; i++), work as
        expected. */
        driver->remotePortMax = p->l + 1;
    }

    if (driver->remotePortMin > driver->remotePortMax) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("%s: remote_display_port_min: min port must not be greater than max port"),
                        filename);
        virConfFree(conf);
        return -1;
    }

    p = virConfGetValue (conf, "user");
    CHECK_TYPE ("user", VIR_CONF_STRING);
    if (!(user = strdup(p && p->str ? p->str : QEMU_USER))) {
        virReportOOMError();
        virConfFree(conf);
        return -1;
    }
    if (virGetUserID(user, &driver->user) < 0) {
        VIR_FREE(user);
        virConfFree(conf);
        return -1;
    }
    VIR_FREE(user);


    p = virConfGetValue (conf, "group");
    CHECK_TYPE ("group", VIR_CONF_STRING);
    if (!(group = strdup(p && p->str ? p->str : QEMU_GROUP))) {
        virReportOOMError();
        virConfFree(conf);
        return -1;
    }
    if (virGetGroupID(group, &driver->group) < 0) {
        VIR_FREE(group);
        virConfFree(conf);
        return -1;
    }
    VIR_FREE(group);


    p = virConfGetValue (conf, "dynamic_ownership");
    CHECK_TYPE ("dynamic_ownership", VIR_CONF_LONG);
    if (p) driver->dynamicOwnership = p->l;


    p = virConfGetValue (conf, "cgroup_controllers");
    CHECK_TYPE ("cgroup_controllers", VIR_CONF_LIST);
    if (p) {
        virConfValuePtr pp;
        for (i = 0, pp = p->list; pp; ++i, pp = pp->next) {
            int ctl;
            if (pp->type != VIR_CONF_STRING) {
                VIR_ERROR(_("cgroup_controllers must be a list of strings"));
                virConfFree(conf);
                return -1;
            }
            ctl = virCgroupControllerTypeFromString(pp->str);
            if (ctl < 0) {
                VIR_ERROR(_("Unknown cgroup controller '%s'"), pp->str);
                virConfFree(conf);
                return -1;
            }
            driver->cgroupControllers |= (1 << ctl);
        }
    } else {
        driver->cgroupControllers =
            (1 << VIR_CGROUP_CONTROLLER_CPU) |
            (1 << VIR_CGROUP_CONTROLLER_DEVICES) |
            (1 << VIR_CGROUP_CONTROLLER_MEMORY) |
            (1 << VIR_CGROUP_CONTROLLER_BLKIO) |
            (1 << VIR_CGROUP_CONTROLLER_CPUSET) |
            (1 << VIR_CGROUP_CONTROLLER_CPUACCT);
    }
    for (i = 0 ; i < VIR_CGROUP_CONTROLLER_LAST ; i++) {
        if (driver->cgroupControllers & (1 << i)) {
            VIR_INFO("Configured cgroup controller '%s'",
                     virCgroupControllerTypeToString(i));
        }
    }

    p = virConfGetValue (conf, "cgroup_device_acl");
    CHECK_TYPE ("cgroup_device_acl", VIR_CONF_LIST);
    if (p) {
        int len = 0;
        virConfValuePtr pp;
        for (pp = p->list; pp; pp = pp->next)
            len++;
        if (VIR_ALLOC_N(driver->cgroupDeviceACL, 1+len) < 0) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
        for (i = 0, pp = p->list; pp; ++i, pp = pp->next) {
            if (pp->type != VIR_CONF_STRING) {
                VIR_ERROR(_("cgroup_device_acl must be a list of strings"));
                virConfFree(conf);
                return -1;
            }
            driver->cgroupDeviceACL[i] = strdup (pp->str);
            if (driver->cgroupDeviceACL[i] == NULL) {
                virReportOOMError();
                virConfFree(conf);
                return -1;
            }

        }
        driver->cgroupDeviceACL[i] = NULL;
    }

    p = virConfGetValue (conf, "save_image_format");
    CHECK_TYPE ("save_image_format", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->saveImageFormat);
        if (!(driver->saveImageFormat = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "dump_image_format");
    CHECK_TYPE ("dump_image_format", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->dumpImageFormat);
        if (!(driver->dumpImageFormat = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "auto_dump_path");
    CHECK_TYPE ("auto_dump_path", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->autoDumpPath);
        if (!(driver->autoDumpPath = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "auto_dump_bypass_cache");
    CHECK_TYPE ("auto_dump_bypass_cache", VIR_CONF_LONG);
    if (p) driver->autoDumpBypassCache = true;

    p = virConfGetValue (conf, "auto_start_bypass_cache");
    CHECK_TYPE ("auto_start_bypass_cache", VIR_CONF_LONG);
    if (p) driver->autoStartBypassCache = true;

    p = virConfGetValue (conf, "hugetlbfs_mount");
    CHECK_TYPE ("hugetlbfs_mount", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->hugetlbfs_mount);
        if (!(driver->hugetlbfs_mount = strdup(p->str))) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "mac_filter");
    CHECK_TYPE ("mac_filter", VIR_CONF_LONG);
    if (p && p->l) {
        driver->macFilter = p->l;
        if (!(driver->ebtables = ebtablesContextNew("qemu"))) {
            driver->macFilter = 0;
            virReportSystemError(errno,
                                 _("failed to enable mac filter in '%s'"),
                                 __FILE__);
            virConfFree(conf);
            return -1;
        }

        if ((errno = networkDisableAllFrames(driver))) {
            virReportSystemError(errno,
                         _("failed to add rule to drop all frames in '%s'"),
                                 __FILE__);
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "relaxed_acs_check");
    CHECK_TYPE ("relaxed_acs_check", VIR_CONF_LONG);
    if (p) driver->relaxedACS = p->l;

    p = virConfGetValue (conf, "vnc_allow_host_audio");
    CHECK_TYPE ("vnc_allow_host_audio", VIR_CONF_LONG);
    if (p) driver->vncAllowHostAudio = p->l;

    p = virConfGetValue (conf, "clear_emulator_capabilities");
    CHECK_TYPE ("clear_emulator_capabilities", VIR_CONF_LONG);
    if (p) driver->clearEmulatorCapabilities = p->l;

    p = virConfGetValue (conf, "allow_disk_format_probing");
    CHECK_TYPE ("allow_disk_format_probing", VIR_CONF_LONG);
    if (p) driver->allowDiskFormatProbing = p->l;

    p = virConfGetValue (conf, "set_process_name");
    CHECK_TYPE ("set_process_name", VIR_CONF_LONG);
    if (p) driver->setProcessName = p->l;

    p = virConfGetValue(conf, "max_processes");
    CHECK_TYPE("max_processes", VIR_CONF_LONG);
    if (p) driver->maxProcesses = p->l;

    p = virConfGetValue(conf, "max_files");
    CHECK_TYPE("max_files", VIR_CONF_LONG);
    if (p) driver->maxFiles = p->l;

    p = virConfGetValue (conf, "lock_manager");
    CHECK_TYPE ("lock_manager", VIR_CONF_STRING);
    if (p && p->str) {
        char *lockConf;
        virLockManagerPluginUnref(driver->lockManager);
        if (virAsprintf(&lockConf, "%s/libvirt/qemu-%s.conf", SYSCONFDIR, p->str) < 0) {
            virReportOOMError();
            virConfFree(conf);
            return -1;
        }
        if (!(driver->lockManager =
              virLockManagerPluginNew(p->str, lockConf, 0)))
            VIR_ERROR(_("Failed to load lock manager %s"), p->str);
        VIR_FREE(lockConf);
    }

    p = virConfGetValue(conf, "max_queued");
    CHECK_TYPE("max_queued", VIR_CONF_LONG);
    if (p) driver->max_queued = p->l;

    p = virConfGetValue(conf, "keepalive_interval");
    CHECK_TYPE("keepalive_interval", VIR_CONF_LONG);
    if (p) driver->keepAliveInterval = p->l;

    p = virConfGetValue(conf, "keepalive_count");
    CHECK_TYPE("keepalive_count", VIR_CONF_LONG);
    if (p) driver->keepAliveCount = p->l;

    virConfFree (conf);
    return 0;
}
Esempio n. 11
0
daemonSetupNetworking(virNetServerPtr srv,
                      virNetServerPtr srvAdm,
                      struct daemonConfig *config,
                      const char *sock_path,
                      const char *sock_path_ro,
                      const char *sock_path_adm,
                      bool ipsock,
                      bool privileged)
{
    virNetServerServicePtr svc = NULL;
    virNetServerServicePtr svcAdm = NULL;
    virNetServerServicePtr svcRO = NULL;
    virNetServerServicePtr svcTCP = NULL;
#if WITH_GNUTLS
    virNetServerServicePtr svcTLS = NULL;
#endif
    gid_t unix_sock_gid = 0;
    int unix_sock_ro_mask = 0;
    int unix_sock_rw_mask = 0;
    int unix_sock_adm_mask = 0;
    int ret = -1;

    unsigned int cur_fd = STDERR_FILENO + 1;
    unsigned int nfds = virGetListenFDs();

    if (config->unix_sock_group) {
        if (virGetGroupID(config->unix_sock_group, &unix_sock_gid) < 0)
            return ret;
    }

    if (nfds > (sock_path_ro ? 2 : 1)) {
        VIR_ERROR(_("Too many (%u) FDs passed from caller"), nfds);
        return ret;
    }

    if (virStrToLong_i(config->unix_sock_ro_perms, NULL, 8, &unix_sock_ro_mask) != 0) {
        VIR_ERROR(_("Failed to parse mode '%s'"), config->unix_sock_ro_perms);
        goto cleanup;
    }

    if (virStrToLong_i(config->unix_sock_admin_perms, NULL, 8, &unix_sock_adm_mask) != 0) {
        VIR_ERROR(_("Failed to parse mode '%s'"), config->unix_sock_admin_perms);
        goto cleanup;
    }

    if (virStrToLong_i(config->unix_sock_rw_perms, NULL, 8, &unix_sock_rw_mask) != 0) {
        VIR_ERROR(_("Failed to parse mode '%s'"), config->unix_sock_rw_perms);
        goto cleanup;
    }

    if (!(svc = virNetServerServiceNewFDOrUNIX(sock_path,
                                               unix_sock_rw_mask,
                                               unix_sock_gid,
                                               config->auth_unix_rw,
#if WITH_GNUTLS
                                               NULL,
#endif
                                               false,
                                               config->max_queued_clients,
                                               config->max_client_requests,
                                               nfds, &cur_fd)))
        goto cleanup;
    if (sock_path_ro) {
        if (!(svcRO = virNetServerServiceNewFDOrUNIX(sock_path_ro,
                                                     unix_sock_ro_mask,
                                                     unix_sock_gid,
                                                     config->auth_unix_ro,
#if WITH_GNUTLS
                                                     NULL,
#endif
                                                     true,
                                                     config->max_queued_clients,
                                                     config->max_client_requests,
                                                     nfds, &cur_fd)))
            goto cleanup;
    }

    if (virNetServerAddService(srv, svc,
                               config->mdns_adv && !ipsock ?
                               "_libvirt._tcp" :
                               NULL) < 0)
        goto cleanup;

    if (svcRO &&
        virNetServerAddService(srv, svcRO, NULL) < 0)
        goto cleanup;

    /* Temporarily disabled */
    if (sock_path_adm && false) {
        VIR_DEBUG("Registering unix socket %s", sock_path_adm);
        if (!(svcAdm = virNetServerServiceNewUNIX(sock_path_adm,
                                                  unix_sock_adm_mask,
                                                  unix_sock_gid,
                                                  REMOTE_AUTH_NONE,
#if WITH_GNUTLS
                                                  NULL,
#endif
                                                  true,
                                                  config->admin_max_queued_clients,
                                                  config->admin_max_client_requests)))
            goto cleanup;

        if (virNetServerAddService(srvAdm, svcAdm, NULL) < 0)
            goto cleanup;
    }

    if (ipsock) {
        if (config->listen_tcp) {
            VIR_DEBUG("Registering TCP socket %s:%s",
                      config->listen_addr, config->tcp_port);
            if (!(svcTCP = virNetServerServiceNewTCP(config->listen_addr,
                                                     config->tcp_port,
                                                     AF_UNSPEC,
                                                     config->auth_tcp,
#if WITH_GNUTLS
                                                     NULL,
#endif
                                                     false,
                                                     config->max_queued_clients,
                                                     config->max_client_requests)))
                goto cleanup;

            if (virNetServerAddService(srv, svcTCP,
                                       config->mdns_adv ? "_libvirt._tcp" : NULL) < 0)
                goto cleanup;
        }

#if WITH_GNUTLS
        if (config->listen_tls) {
            virNetTLSContextPtr ctxt = NULL;

            if (config->ca_file ||
                config->cert_file ||
                config->key_file) {
                if (!(ctxt = virNetTLSContextNewServer(config->ca_file,
                                                       config->crl_file,
                                                       config->cert_file,
                                                       config->key_file,
                                                       (const char *const*)config->tls_allowed_dn_list,
                                                       config->tls_no_sanity_certificate ? false : true,
                                                       config->tls_no_verify_certificate ? false : true)))
                    goto cleanup;
            } else {
                if (!(ctxt = virNetTLSContextNewServerPath(NULL,
                                                           !privileged,
                                                           (const char *const*)config->tls_allowed_dn_list,
                                                           config->tls_no_sanity_certificate ? false : true,
                                                           config->tls_no_verify_certificate ? false : true)))
                    goto cleanup;
            }

            VIR_DEBUG("Registering TLS socket %s:%s",
                      config->listen_addr, config->tls_port);
            if (!(svcTLS =
                  virNetServerServiceNewTCP(config->listen_addr,
                                            config->tls_port,
                                            AF_UNSPEC,
                                            config->auth_tls,
                                            ctxt,
                                            false,
                                            config->max_queued_clients,
                                            config->max_client_requests))) {
                virObjectUnref(ctxt);
                goto cleanup;
            }
            if (virNetServerAddService(srv, svcTLS,
                                       config->mdns_adv &&
                                       !config->listen_tcp ? "_libvirt._tcp" : NULL) < 0)
                goto cleanup;

            virObjectUnref(ctxt);
        }
#else
        (void)privileged;
        if (config->listen_tls) {
            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
                           _("This libvirtd build does not support TLS"));
            goto cleanup;
        }
#endif
    }

#if WITH_SASL
    if (config->auth_unix_rw == REMOTE_AUTH_SASL ||
        config->auth_unix_ro == REMOTE_AUTH_SASL ||
# if WITH_GNUTLS
        config->auth_tls == REMOTE_AUTH_SASL ||
# endif
        config->auth_tcp == REMOTE_AUTH_SASL) {
        saslCtxt = virNetSASLContextNewServer(
            (const char *const*)config->sasl_allowed_username_list);
        if (!saslCtxt)
            goto cleanup;
    }
#endif

    ret = 0;

 cleanup:
#if WITH_GNUTLS
    virObjectUnref(svcTLS);
#endif
    virObjectUnref(svcTCP);
    virObjectUnref(svcRO);
    virObjectUnref(svcAdm);
    virObjectUnref(svc);
    return ret;
}