int
uinet_demo_process_args(struct uinet_demo_config *cfg, int argc, char **argv)
{
int oldopterr;
int rv;
oldopterr = opterr;
opterr = 0;
rv = demo_db[cfg->which].process_args(cfg, argc, argv);
opterr = oldopterr;
/* missing required argument to known option */
if (rv == ':') {
printf("%s option `%s' requires an argument\n", uinet_demo_name(cfg->which), argv[optind-1]);
return (-1); /* caller should stop argument processing */
}
/* unknown option */
if (rv == '?') {
optind--; /* move index back to point to option that was unknown */
return (0); /* caller should continue argument processing */
}
/* invalid argument to known option */
if (rv > 0) {
return (-1); /* caller should stop argument processing */
}
/* rv is -1, caller should continue processing to notice end-of-arguments */
return (0);
}
static void
uinet_demo_base_init_cfg(struct uinet_demo_config *cfg, enum uinet_demo_id which,
uint64_t instance_id, const char *name, int verbose)
{
if (name)
snprintf(cfg->name, sizeof(cfg->name), "%s", name);
else
snprintf(cfg->name, sizeof(cfg->name), "%s %llu",
uinet_demo_name(which), (unsigned long long)instance_id);
cfg->id = instance_id;
cfg->which = which;
cfg->verbose = verbose;
cfg->copy_every = 1;
}
static void
print_cfg(struct event_loop_config *elcfgs, unsigned int num_event_loops)
{
unsigned int i, j;
unsigned int bridge_tos;
struct event_loop_config *curloopcfg;
struct stack_config *curstackcfg;
struct interface_config *curifcfg;
struct uinet_demo_config *curappcfg;
unsigned int stack_index;
unsigned int if_index;
unsigned int app_index;
int rxcpu, txcpu;
for (i = 0; i < num_event_loops; i++) {
curloopcfg = &elcfgs[i];
printf("Event loop [%s]: cpu=", curloopcfg->name);
if (curloopcfg->cpu < 0)
printf("auto");
else
printf("%u", curloopcfg->cpu);
printf("\n");
for (stack_index = 0; stack_index < curloopcfg->num_stacks; stack_index++) {
curstackcfg = curloopcfg->scfgs[stack_index];
printf(" Stack instance [%s]: sts-mode=%s\n",
curstackcfg->name, curstackcfg->sts ? "yes" : "no");
for (if_index = 0; if_index < curstackcfg->num_ifs; if_index++) {
curifcfg = curstackcfg->ifcfgs[if_index];
printf(" Interface [%s (%s)]: type=%s rxbatch=%u txiqlen=%u gen=%s len=%u",
curifcfg->ucfg.alias, curifcfg->ucfg.configstr,
curifcfg->type_name,
curifcfg->ucfg.rx_batch_size,
curifcfg->ucfg.tx_inject_queue_len,
curifcfg->generate ? "yes" : "no",
curifcfg->generate ? curifcfg->gen_len : 0);
printf(" bridge_to=");
if (curifcfg->num_bridge_to) {
for (j = 0; j < curifcfg->num_bridge_to; j++) {
printf("%s%s (%s)", (j > 0) ? "," : "",
curifcfg->bridge_to[j]->ucfg.alias,
curifcfg->bridge_to[j]->ucfg.configstr);
}
} else
printf("<none>");
if (curstackcfg->sts)
txcpu = rxcpu = curloopcfg->cpu;
else {
txcpu = curifcfg->ucfg.tx_cpu;
rxcpu = curifcfg->ucfg.rx_cpu;
}
print_cpu(" rxcpu", txcpu);
print_cpu(" txcpu", txcpu);
print_timestamp_mode(" tstamp", curifcfg->ucfg.timestamp_mode);
switch (curifcfg->ucfg.type) {
case UINET_IFTYPE_NETMAP:
printf(" trace=0x%08x", curifcfg->ucfg.type_cfg.netmap.trace_mask);
printf(" valebufs=%u", curifcfg->ucfg.type_cfg.netmap.vale_num_extra_bufs);
break;
case UINET_IFTYPE_PCAP:
printf(" txio=%s", curifcfg->ucfg.type_cfg.pcap.use_file_io_thread ? "remote" : "local");
printf(" txsnaplen=%u", curifcfg->ucfg.type_cfg.pcap.file_snapshot_length);
printf(" txfiles=%s", curifcfg->ucfg.type_cfg.pcap.file_per_flow ? "per-flow" : "single");
printf(" txmaxfds=%u", curifcfg->ucfg.type_cfg.pcap.max_concurrent_files);
printf(" txdirbits=%u", curifcfg->ucfg.type_cfg.pcap.dir_bits);
break;
default:
break;
}
printf("\n");
}
if (if_index == 0)
printf(" <no interfaces>\n");
for (app_index = 0; app_index < curstackcfg->num_apps; app_index++) {
curappcfg = curstackcfg->acfgs[app_index];
printf(" %s [%s]: ", uinet_demo_name(curappcfg->which), curappcfg->name);
uinet_demo_print_cfg(curappcfg);
printf("\n");
}
if (app_index == 0)
printf(" <no apps>\n");
}
if (stack_index == 0)
printf(" <no stacks>\n");
}
}
static void
usage(const char *progname)
{
unsigned int i;
printf("\n");
printf("Usage: %s [global] [default loop] [default stack] [[intf|app] ... ] [loop [stack [intf|app] ... ] ... ] ...\n", progname);
printf("\n");
printf("This is a tool for creating and arranging libev event loops, libuinet\n");
printf("stack instances, libuinet network interfaces, and libuinet demo apps.\n");
printf("The model is that an event loop contains stack instances, and a stack\n");
printf("instance contains network interfaces and demo apps. That is not the\n");
printf("only way things can be arranged with libuinet, but it covers most of\n");
printf("the sensible cases.\n");
printf("\n");
printf("Global options:\n");
printf("\n");
printf(" --base-config [small|medium|large]\n");
printf(" Choose base global config to use (default 'medium')\n");
printf(" --config-only, -N Print the configuration and exit (can be specified at any point)\n");
printf(" --help, -h Print this message (can be specified at any point)\n");
printf(" --max-accept-queue <value>\n");
printf(" Set the maximum listen socket accept queue length\n");
printf(" --max-clusters <value> Set the upper limit on the global mbuf cluster pool size\n");
printf(" --max-sockets <value> Set the maximum number of sockets per stack instance\n");
printf(" --netmap-extra-bufs <buffers>\n");
printf(" Size of process-wide netmap extra buffer pool shared by netmapped physical interfaces\n");
printf(" --syncache-hash-size <value>\n");
printf(" Set the number of buckets in each stack instance's syncache hash\n");
printf(" --syncache-bucket-limit <value>\n");
printf(" Set the maximum number of entries in each syncache hash bucket\n");
printf(" --syncache-cache-limit <value>\n");
printf(" Set the maximum number of entries in each stack instance's syncache\n");
printf(" --tcb-hash-size <value> Set the number of buckets in each stack instance's tcp connection hash\n");
printf(" --verbose, -v [=level] Increase baseline verbosity, or set to given level (can use multiple times)\n");
printf("\n");
printf("Event loop options:\n");
printf("\n");
printf(" --eloop, -e Create a new event loop\n");
printf(" --eloop-cpu, -c <cpu> Bind the current event loop to the given CPU\n");
printf(" --stats, -m [=interval] Print stats for event loop and all it contains every <interval> seconds (default 1)\n");
printf(" --verbose, -v [=level] Increase event loop verbosity above the baseline, or set to given level (can use multiple times)\n");
printf("\n");
printf("Stack instance options:\n");
printf("\n");
printf(" --brief-tcp-stats [=interval]\n");
printf(" Print brief TCP stats every <interval> seconds (default 1)\n");
printf(" --stack, -s [=name] Create a new stack instance in the current event loop, with optional name\n");
printf(" --sts, -S Run stack instance in single-thread-stack mode\n");
printf(" --syncache-stats Print syncache stats for this stack instance when event loop stats are enabled\n");
printf("\n");
printf("Interface creation options:\n");
printf("\n");
printf(" --netmap, -n <config> Create a new netmap interface in the current stack using the given config string\n");
printf(" --pcap, -p <config> Create a new pcap interface in the current stack using the given config string\n");
printf("\n");
printf("General interface configuration options:\n");
printf("\n");
printf(" --bridge-to, -b <intf_list>\n");
printf(" Transmit all inbound packets on this interface from each of the given list of interfaces\n");
printf(" --gen, -g [=packet_len] Generate transmit packets of the given size (default %u)\n", DEFAULT_GEN_LEN);
printf(" --iqlen, -I <value> Set max transmit inject queue length\n");
printf(" --pcap-tx-file-dirbits <n>\n");
printf(" Set number of bits of flow serial number to use for choosing subdirectories in pcap file-per-flow transmit-to-file mode (default 10)\n");
printf(" --pcap-tx-file-mode <mode>\n");
printf(" Set pcap transmit-to-file mode to one of [single-file, file-per-flow] (default single-file)\n");
printf(" --rxbatch, -R <value> Set receive processing batch size limit\n");
printf(" --rxcpu, -r <cpu> Bind interface receive thread to the given CPU (ignored in STS mode)\n");
printf(" --txcpu, -t <cpu> Bind interface transmit thread to the given CPU (ignored in STS mode)\n");
printf(" --timestamp-mode, -T <mode>\n");
printf(" Set interface timestamp mode to one of:\n");
for (i = 0; i < sizeof(timestamp_mode_table) / sizeof(timestamp_mode_table[0]); i++) {
printf(" %16s %s\n", timestamp_mode_table[i].name, timestamp_mode_table[i].desc);
}
printf(" --trace-mask, -Z <mask> Mask of driver trace message enables (see driver source)\n");
printf("\n");
printf("Demo app creation options:\n");
printf("\n");
printf(" --connscale, -C [=name] Create a connscale client or server in the current stack, with optional name\n");
printf(" --echo, -E [=name] Create an echo server in the current stack, with optional name\n");
printf(" --nproxy, -O [=name] Create a non-transparent proxy server in the current stack, with optional name\n");
printf(" --passive, -P [=name] Create a passive reassembly server in the current stack, with optional name\n");
printf(" --passive-extract, -X [=name]\n");
printf(" Create a passive reassembly server that extracts http payloads in the current stack, with optional name\n");
printf("\n");
for (i = 0; i < UINET_NUM_DEMO_APPS; i++) {
printf("Options for configuring %s instances:\n", uinet_demo_name(i));
printf("\n");
uinet_demo_print_usage(i);
printf("\n");
}
}