static int
rumpsp_dispatch(int timeout_ms)
{
unsigned int idx;
int rv, seen;
rv = poll(pollfds, maxidx+1, timeout_ms);
if (rv == 0)
return 0;
if (rv < 0)
return errno;
seen = 0;
for (idx = 0; seen < rv && idx <= maxidx; idx++) {
struct rumpsp_chan *chan = &chanfds[idx];
if (!(pollfds[idx].revents & (POLLIN|POLLOUT)))
continue;
seen++;
if (idx == 0) {
dispatch_accept(chan->fd);
} else {
if (pollfds[idx].revents & POLLIN) {
handlers.readable(chan, chan->token);
}
if (pollfds[idx].revents & POLLOUT) {
handlers.writable(chan, chan->token);
}
}
}
return 0;
}
int
main(int argc, char * argv[])
{
/* State variables. */
struct serverpool * SP;
struct dynamodb_request_queue * QW;
struct dynamodb_request_queue * QR;
struct dispatch_state * D;
int s;
/* Command-line parameters. */
char * opt_k = NULL;
char * opt_l = NULL;
char * opt_p = NULL;
char * opt_r = NULL;
char * opt_s = NULL;
char * opt_t = NULL;
int opt_1 = 0;
/* Working variable. */
char * dynamodb_host;
char * key_id;
char * key_secret;
struct sock_addr ** sas;
struct logging_file * logfile;
struct capacity_reader * M;
const char * ch;
WARNP_INIT;
/* Parse the command line. */
while ((ch = GETOPT(argc, argv)) != NULL) {
GETOPT_SWITCH(ch) {
GETOPT_OPTARG("-k"):
if (opt_k != NULL)
usage();
if ((opt_k = strdup(optarg)) == NULL)
OPT_EPARSE(ch, optarg);
break;
GETOPT_OPTARG("-l"):
if (opt_l != NULL)
usage();
if ((opt_l = strdup(optarg)) == NULL)
OPT_EPARSE(ch, optarg);
break;
GETOPT_OPTARG("-p"):
if (opt_p != NULL)
usage();
if ((opt_p = strdup(optarg)) == NULL)
OPT_EPARSE(ch, optarg);
break;
GETOPT_OPTARG("-r"):
if (opt_r != NULL)
usage();
if ((opt_r = strdup(optarg)) == NULL)
OPT_EPARSE(ch, optarg);
break;
GETOPT_OPTARG("-s"):
if (opt_s != NULL)
usage();
if ((opt_s = strdup(optarg)) == NULL)
OPT_EPARSE(ch, optarg);
break;
GETOPT_OPTARG("-t"):
if (opt_t != NULL)
usage();
if ((opt_t = strdup(optarg)) == NULL)
OPT_EPARSE(ch, optarg);
break;
GETOPT_OPT("--version"):
fprintf(stderr, "dynamodb-kv @VERSION@\n");
exit(0);
GETOPT_OPT("-1"):
if (opt_1 != 0)
usage();
opt_1 = 1;
break;
GETOPT_MISSING_ARG:
warn0("Missing argument to %s\n", ch);
usage();
GETOPT_DEFAULT:
warn0("illegal option -- %s\n", ch);
usage();
}
}
argc -= optind;
argv += optind;
/* We should have processed all the arguments. */
if (argc != 0)
usage();
/* Verify that we have mandatory options. */
if (opt_k == NULL)
usage();
if (opt_r == NULL)
usage();
if (opt_s == NULL)
usage();
if (opt_t == NULL)
usage();
/* Construct the DynamoDB endpoint host name. */
if (asprintf(&dynamodb_host, "dynamodb.%s.amazonaws.com:80",
opt_r) == -1) {
warnp("asprintf");
exit(1);
}
/* Start looking up addresses for DynamoDB endpoints. */
if ((SP = serverpool_create(dynamodb_host, 15, 120)) == NULL) {
warnp("Error starting DNS lookups for %s", dynamodb_host);
exit(1);
}
/* Read the key file. */
if (aws_readkeys(opt_k, &key_id, &key_secret)) {
warnp("Error reading AWS keys from %s", opt_k);
exit(1);
}
/* Create DynamoDB request queues for writes and reads. */
if ((QW = dynamodb_request_queue_init(key_id, key_secret,
opt_r, SP)) == NULL) {
warnp("Error creating DynamoDB request queue");
exit(1);
}
if ((QR = dynamodb_request_queue_init(key_id, key_secret,
opt_r, SP)) == NULL) {
warnp("Error creating DynamoDB request queue");
exit(1);
}
/* Start reading table throughput parameters. */
if ((M = capacity_init(key_id, key_secret, opt_t, opt_r,
SP, QW, QR)) == NULL) {
warnp("Error reading DynamoDB table metadata");
exit(1);
}
/* Resolve the listening address. */
if ((sas = sock_resolve(opt_s)) == NULL) {
warnp("Error resolving socket address: %s", opt_s);
exit(1);
}
if (sas[0] == NULL) {
warn0("No addresses found for %s", opt_s);
exit(1);
}
/* Create and bind a socket, and mark it as listening. */
if (sas[1] != NULL)
warn0("Listening on first of multiple addresses found for %s",
opt_s);
if ((s = sock_listener(sas[0])) == -1)
exit(1);
/* If requested, create a log file. */
if (opt_l != NULL) {
if ((logfile = logging_open(opt_l)) == NULL) {
warnp("Cannot open log file");
exit(1);
}
dynamodb_request_queue_log(QW, logfile);
dynamodb_request_queue_log(QR, logfile);
} else {
logfile = NULL;
}
/* Daemonize and write pid. */
if (opt_p == NULL) {
if (asprintf(&opt_p, "%s.pid", opt_s) == -1) {
warnp("asprintf");
exit(1);
}
}
if (daemonize(opt_p)) {
warnp("Failed to daemonize");
exit(1);
}
/* Handle connections, one at once. */
do {
/* accept a connection. */
if ((D = dispatch_accept(QW, QR, opt_t, s)) == NULL) {
warnp("Error accepting new connection");
exit(1);
}
/* Loop until the connection dies. */
do {
if (events_run()) {
warnp("Error running event loop");
exit(1);
}
} while (dispatch_alive(D));
/* Clean up the connection. */
if (dispatch_done(D))
exit(1);
} while (opt_1 == 0);
/* Close the log file, if we have one. */
if (logfile != NULL)
logging_close(logfile);
/* Close the listening socket. */
close(s);
/* Free the address structures. */
sock_addr_freelist(sas);
/* Stop performing DescribeTable requests. */
capacity_free(M);
/* Free DynamoDB request queues. */
dynamodb_request_queue_free(QR);
dynamodb_request_queue_free(QW);
/* Stop DNS lookups. */
serverpool_free(SP);
/* Shut down the event subsystem. */
events_shutdown();
/* Free string allocated by asprintf. */
free(dynamodb_host);
/* Free key strings. */
free(key_id);
insecure_memzero(key_secret, strlen(key_secret));
free(key_secret);
/* Free option strings. */
free(opt_k);
free(opt_l);
free(opt_p);
free(opt_r);
free(opt_s);
free(opt_t);
/* Success! */
exit(0);
}
int
main(int argc, char * argv[])
{
/* Command-line parameters. */
int opt_d = 0;
int opt_D = 0;
int opt_e = 0;
int opt_f = 0;
int opt_F = 0;
int opt_j = 0;
const char * opt_k = NULL;
intmax_t opt_n = 0;
double opt_o = 0.0;
char * opt_p = NULL;
double opt_r = 0.0;
int opt_R = 0;
const char * opt_s = NULL;
const char * opt_t = NULL;
/* Working variables. */
struct sock_addr ** sas_s;
struct sock_addr ** sas_t;
struct proto_secret * K;
int ch;
int s;
WARNP_INIT;
/* Parse the command line. */
while ((ch = getopt(argc, argv, "dDefFjk:n:o:r:Rp:s:t:")) != -1) {
switch (ch) {
case 'd':
if (opt_d || opt_e)
usage();
opt_d = 1;
break;
case 'D':
if (opt_D)
usage();
opt_D = 1;
break;
case 'e':
if (opt_d || opt_e)
usage();
opt_e = 1;
break;
case 'f':
if (opt_f)
usage();
opt_f = 1;
break;
case 'F':
if (opt_F)
usage();
opt_F = 1;
break;
case 'j':
if (opt_j)
usage();
opt_j = 1;
break;
case 'k':
if (opt_k)
usage();
opt_k = optarg;
break;
case 'n':
if (opt_n != 0)
usage();
if ((opt_n = strtoimax(optarg, NULL, 0)) == 0) {
warn0("Invalid option: -n %s", optarg);
exit(1);
}
break;
case 'o':
if (opt_o != 0.0)
usage();
if ((opt_o = strtod(optarg, NULL)) == 0.0) {
warn0("Invalid option: -o %s", optarg);
exit(1);
}
break;
case 'p':
if (opt_p)
usage();
if ((opt_p = strdup(optarg)) == NULL)
OPT_EPARSE(ch, optarg);
break;
case 'r':
if (opt_r != 0.0)
usage();
if ((opt_r = strtod(optarg, NULL)) == 0.0) {
warn0("Invalid option: -r %s", optarg);
exit(1);
}
break;
case 'R':
if (opt_R)
usage();
opt_R = 1;
break;
case 's':
if (opt_s)
usage();
opt_s = optarg;
break;
case 't':
if (opt_t)
usage();
opt_t = optarg;
break;
default:
usage();
}
}
/* We should have processed all the arguments. */
if (argc != optind)
usage();
/* Set defaults. */
if (opt_n == 0)
opt_n = 100;
if (opt_o == 0.0)
opt_o = 5.0;
if (opt_r == 0.0)
opt_r = 60.0;
/* Sanity-check options. */
if (!opt_d && !opt_e)
usage();
if (opt_k == NULL)
usage();
if ((opt_n < 0) || (opt_n > 500))
usage();
if (!(opt_o > 0.0))
usage();
if ((opt_r != 60.0) && opt_R)
usage();
if (opt_s == NULL)
usage();
if (opt_t == NULL)
usage();
/* Figure out where our pid should be written. */
if (opt_p == NULL) {
if (asprintf(&opt_p, "%s.pid", opt_s) == -1) {
warnp("asprintf");
exit(1);
}
}
/* Daemonize early if we're going to wait for DNS to be ready. */
if (opt_D && !opt_F && daemonize(opt_p)) {
warnp("Failed to daemonize");
exit(1);
}
/* Resolve source address. */
while ((sas_s = sock_resolve(opt_s)) == NULL) {
if (!opt_D) {
warnp("Error resolving socket address: %s", opt_s);
exit(1);
}
sleep(1);
}
if (sas_s[0] == NULL) {
warn0("No addresses found for %s", opt_s);
exit(1);
}
/* Resolve target address. */
while ((sas_t = sock_resolve(opt_t)) == NULL) {
if (!opt_D) {
warnp("Error resolving socket address: %s", opt_t);
exit(1);
}
sleep(1);
}
if (sas_t[0] == NULL) {
warn0("No addresses found for %s", opt_t);
exit(1);
}
/* Load the keying data. */
if ((K = proto_crypt_secret(opt_k)) == NULL) {
warnp("Error reading shared secret");
exit(1);
}
/* Create and bind a socket, and mark it as listening. */
if (sas_s[1] != NULL)
warn0("Listening on first of multiple addresses found for %s",
opt_s);
if ((s = sock_listener(sas_s[0])) == -1)
exit(1);
/* Daemonize and write pid. */
if (!opt_F && daemonize(opt_p)) {
warnp("Failed to daemonize");
exit(1);
}
/* Start accepting connections. */
if (dispatch_accept(s, opt_t, opt_R ? 0.0 : opt_r, sas_t, opt_d,
opt_f, opt_j, K, opt_n, opt_o)) {
warnp("Failed to initialize connection acceptor");
exit(1);
}
/* Infinite loop handling events. */
do {
if (events_run()) {
warnp("Error running event loop");
exit(1);
}
} while (1);
/* NOTREACHED */
/*
* If we could reach this point, we would free memory, close sockets,
* and otherwise clean up here.
*/
}
int
main(int argc, char * argv[])
{
/* Command-line parameters. */
int opt_d = 0;
int opt_D = 0;
int opt_e = 0;
int opt_f = 0;
int opt_g = 0;
int opt_F = 0;
int opt_j = 0;
const char * opt_k = NULL;
intmax_t opt_n = 0;
double opt_o = 0.0;
char * opt_p = NULL;
double opt_r = 0.0;
int opt_R = 0;
const char * opt_s = NULL;
const char * opt_t = NULL;
/* Working variables. */
struct sock_addr ** sas_s;
struct sock_addr ** sas_t;
struct proto_secret * K;
const char * ch;
int s;
WARNP_INIT;
/* Parse the command line. */
while ((ch = GETOPT(argc, argv)) != NULL) {
GETOPT_SWITCH(ch) {
GETOPT_OPT("-d"):
if (opt_d || opt_e)
usage();
opt_d = 1;
break;
GETOPT_OPT("-D"):
if (opt_D)
usage();
opt_D = 1;
break;
GETOPT_OPT("-e"):
if (opt_d || opt_e)
usage();
opt_e = 1;
break;
GETOPT_OPT("-f"):
if (opt_f)
usage();
opt_f = 1;
break;
GETOPT_OPT("-F"):
if (opt_F)
usage();
opt_F = 1;
break;
GETOPT_OPT("-g"):
if (opt_g)
usage();
opt_g = 1;
break;
GETOPT_OPT("-j"):
if (opt_j)
usage();
opt_j = 1;
break;
GETOPT_OPTARG("-k"):
if (opt_k)
usage();
opt_k = optarg;
break;
GETOPT_OPTARG("-n"):
if (opt_n != 0)
usage();
if ((opt_n = strtoimax(optarg, NULL, 0)) == 0) {
warn0("Invalid option: -n %s", optarg);
exit(1);
}
if ((opt_n <= 0) || (opt_n > 500)) {
warn0("The parameter to -n must be between 1 and 500\n");
exit(1);
}
break;
GETOPT_OPTARG("-o"):
if (opt_o != 0.0)
usage();
if ((opt_o = strtod(optarg, NULL)) == 0.0) {
warn0("Invalid option: -o %s", optarg);
exit(1);
}
break;
GETOPT_OPTARG("-p"):
if (opt_p)
usage();
if ((opt_p = strdup(optarg)) == NULL)
OPT_EPARSE(ch, optarg);
break;
GETOPT_OPTARG("-r"):
if (opt_r != 0.0)
usage();
if ((opt_r = strtod(optarg, NULL)) == 0.0) {
warn0("Invalid option: -r %s", optarg);
exit(1);
}
break;
GETOPT_OPT("-R"):
if (opt_R)
usage();
opt_R = 1;
break;
GETOPT_OPTARG("-s"):
if (opt_s)
usage();
opt_s = optarg;
break;
GETOPT_OPTARG("-t"):
if (opt_t)
usage();
opt_t = optarg;
break;
GETOPT_OPT("-v"):
fprintf(stderr, "spiped @VERSION@\n");
exit(0);
GETOPT_MISSING_ARG:
warn0("Missing argument to %s\n", ch);
/* FALLTHROUGH */
GETOPT_DEFAULT:
usage();
}
}
argc -= optind;
argv += optind;
/* We should have processed all the arguments. */
if (argc != 0)
usage();
/* Set defaults. */
if (opt_n == 0)
opt_n = 100;
if (opt_o == 0.0)
opt_o = 5.0;
if (opt_r == 0.0)
opt_r = 60.0;
/* Sanity-check options. */
if (!opt_d && !opt_e)
usage();
if (opt_f && opt_g)
usage();
if (opt_k == NULL)
usage();
if (!(opt_o > 0.0))
usage();
if ((opt_r != 60.0) && opt_R)
usage();
if (opt_s == NULL)
usage();
if (opt_t == NULL)
usage();
/* Figure out where our pid should be written. */
if (opt_p == NULL) {
if (asprintf(&opt_p, "%s.pid", opt_s) == -1) {
warnp("asprintf");
exit(1);
}
}
/* Check whether we are running as init (e.g., inside a container). */
if (getpid() == 1) {
/* https://github.com/docker/docker/issues/7086 */
warn0("WARNING: Applying workaround for Docker signal-handling bug");
/* Bind an explicit signal handler for SIGTERM and SIGINT. */
if (signal(SIGTERM, diediedie_handler) == SIG_ERR) {
warnp("Failed to bind SIGTERM signal handler");
}
if (signal(SIGINT, diediedie_handler) == SIG_ERR) {
warnp("Failed to bind SIGINT signal handler");
}
}
/* Daemonize early if we're going to wait for DNS to be ready. */
if (opt_D && !opt_F && daemonize(opt_p)) {
warnp("Failed to daemonize");
exit(1);
}
/* Resolve source address. */
while ((sas_s = sock_resolve(opt_s)) == NULL) {
if (!opt_D) {
warnp("Error resolving socket address: %s", opt_s);
exit(1);
}
sleep(1);
}
if (sas_s[0] == NULL) {
warn0("No addresses found for %s", opt_s);
exit(1);
}
/* Resolve target address. */
while ((sas_t = sock_resolve(opt_t)) == NULL) {
if (!opt_D) {
warnp("Error resolving socket address: %s", opt_t);
exit(1);
}
sleep(1);
}
if (sas_t[0] == NULL) {
warn0("No addresses found for %s", opt_t);
exit(1);
}
/* Load the keying data. */
if ((K = proto_crypt_secret(opt_k)) == NULL) {
warnp("Error reading shared secret");
exit(1);
}
/* Create and bind a socket, and mark it as listening. */
if (sas_s[1] != NULL)
warn0("Listening on first of multiple addresses found for %s",
opt_s);
if ((s = sock_listener(sas_s[0])) == -1)
exit(1);
/* Daemonize and write pid. */
if (!opt_F && daemonize(opt_p)) {
warnp("Failed to daemonize");
exit(1);
}
/* Start accepting connections. */
if (dispatch_accept(s, opt_t, opt_R ? 0.0 : opt_r, sas_t, opt_d,
opt_f, opt_g, opt_j, K, opt_n, opt_o)) {
warnp("Failed to initialize connection acceptor");
exit(1);
}
/* Infinite loop handling events. */
do {
if (events_run()) {
warnp("Error running event loop");
exit(1);
}
} while (1);
/* NOTREACHED */
/*
* If we could reach this point, we would free memory, close sockets,
* and otherwise clean up here.
*/
}