Beispiel #1
0
void
handle_acl_log(const struct flow *headers, struct ofpbuf *userdata)
{
    if (!VLOG_IS_INFO_ENABLED()) {
        return;
    }

    struct log_pin_header *lph = ofpbuf_try_pull(userdata, sizeof *lph);
    if (!lph) {
        VLOG_WARN("log data missing");
        return;
    }

    size_t name_len = userdata->size;
    char *name = name_len ? xmemdup0(userdata->data, name_len) : NULL;

    struct ds ds = DS_EMPTY_INITIALIZER;
    ds_put_cstr(&ds, "name=");
    json_string_escape(name_len ? name : "<unnamed>", &ds);
    ds_put_format(&ds, ", verdict=%s, severity=%s: ",
                  log_verdict_to_string(lph->verdict),
                  log_severity_to_string(lph->severity));
    flow_format(&ds, headers, NULL);

    VLOG_INFO("%s", ds_cstr(&ds));
    ds_destroy(&ds);
    free(name);
}
Beispiel #2
0
static void
dpdk_init__(const struct smap *ovs_other_config)
{
    char **argv = NULL, **argv_to_release = NULL;
    int result;
    int argc, argc_tmp;
    bool auto_determine = true;
    int err = 0;
    cpu_set_t cpuset;
    char *sock_dir_subcomponent;

    if (process_vhost_flags("vhost-sock-dir", xstrdup(ovs_rundir()),
                            NAME_MAX, ovs_other_config,
                            &sock_dir_subcomponent)) {
        struct stat s;
        if (!strstr(sock_dir_subcomponent, "..")) {
            vhost_sock_dir = xasprintf("%s/%s", ovs_rundir(),
                                       sock_dir_subcomponent);

            err = stat(vhost_sock_dir, &s);
            if (err) {
                VLOG_ERR("vhost-user sock directory '%s' does not exist.",
                         vhost_sock_dir);
            }
        } else {
            vhost_sock_dir = xstrdup(ovs_rundir());
            VLOG_ERR("vhost-user sock directory request '%s/%s' has invalid"
                     "characters '..' - using %s instead.",
                     ovs_rundir(), sock_dir_subcomponent, ovs_rundir());
        }
        free(sock_dir_subcomponent);
    } else {
        vhost_sock_dir = sock_dir_subcomponent;
    }

    argv = grow_argv(&argv, 0, 1);
    argc = 1;
    argv[0] = xstrdup(ovs_get_program_name());
    argc_tmp = get_dpdk_args(ovs_other_config, &argv, argc);

    while (argc_tmp != argc) {
        if (!strcmp("-c", argv[argc]) || !strcmp("-l", argv[argc])) {
            auto_determine = false;
            break;
        }
        argc++;
    }
    argc = argc_tmp;

    /**
     * NOTE: This is an unsophisticated mechanism for determining the DPDK
     * lcore for the DPDK Master.
     */
    if (auto_determine) {
        int i;
        /* Get the main thread affinity */
        CPU_ZERO(&cpuset);
        err = pthread_getaffinity_np(pthread_self(), sizeof(cpu_set_t),
                                     &cpuset);
        if (!err) {
            for (i = 0; i < CPU_SETSIZE; i++) {
                if (CPU_ISSET(i, &cpuset)) {
                    argv = grow_argv(&argv, argc, 2);
                    argv[argc++] = xstrdup("-c");
                    argv[argc++] = xasprintf("0x%08llX", (1ULL<<i));
                    i = CPU_SETSIZE;
                }
            }
        } else {
            VLOG_ERR("Thread getaffinity error %d. Using core 0x1", err);
            /* User did not set dpdk-lcore-mask and unable to get current
             * thread affintity - default to core 0x1 */
            argv = grow_argv(&argv, argc, 2);
            argv[argc++] = xstrdup("-c");
            argv[argc++] = xasprintf("0x%X", 1);
        }
    }

    argv = grow_argv(&argv, argc, 1);
    argv[argc] = NULL;

    optind = 1;

    if (VLOG_IS_INFO_ENABLED()) {
        struct ds eal_args;
        int opt;
        ds_init(&eal_args);
        ds_put_cstr(&eal_args, "EAL ARGS:");
        for (opt = 0; opt < argc; ++opt) {
            ds_put_cstr(&eal_args, " ");
            ds_put_cstr(&eal_args, argv[opt]);
        }
        VLOG_INFO("%s", ds_cstr_ro(&eal_args));
        ds_destroy(&eal_args);
    }

    argv_to_release = grow_argv(&argv_to_release, 0, argc);
    for (argc_tmp = 0; argc_tmp < argc; ++argc_tmp) {
        argv_to_release[argc_tmp] = argv[argc_tmp];
    }

    /* Make sure things are initialized ... */
    result = rte_eal_init(argc, argv);
    if (result < 0) {
        ovs_abort(result, "Cannot init EAL");
    }
    argv_release(argv, argv_to_release, argc);

    /* Set the main thread affinity back to pre rte_eal_init() value */
    if (auto_determine && !err) {
        err = pthread_setaffinity_np(pthread_self(), sizeof(cpu_set_t),
                                     &cpuset);
        if (err) {
            VLOG_ERR("Thread setaffinity error %d", err);
        }
    }

    rte_memzone_dump(stdout);

    /* We are called from the main thread here */
    RTE_PER_LCORE(_lcore_id) = NON_PMD_CORE_ID;

#ifdef DPDK_PDUMP
    VLOG_INFO("DPDK pdump packet capture enabled");
    err = rte_pdump_init(ovs_rundir());
    if (err) {
        VLOG_INFO("Error initialising DPDK pdump");
        rte_pdump_uninit();
    } else {
        char *server_socket_path;

        server_socket_path = xasprintf("%s/%s", ovs_rundir(),
                                       "pdump_server_socket");
        fatal_signal_add_file_to_unlink(server_socket_path);
        free(server_socket_path);
    }
#endif

    /* Finally, register the dpdk classes */
    netdev_dpdk_register();
}