void *
d2i_fp_max(const ASN1_ITEM *it, FILE *fp, void *x, unsigned int max)
{
AUTO(BIO, bio);
bio = BIO_new_fp(fp, BIO_NOCLOSE);
if (bio == NULL)
return NULL;
return d2i_bio_max(it, bio, x, max);
}
static int
decryptd(int argc, char *argv[])
{
int ret = EXIT_FAILURE;
AUTO(DEO_MSG, in);
AUTO(BIO, sio);
AUTO(ctx, ctx);
ctx = load_ctx(argc, argv);
if (ctx == NULL)
goto error;
sio = start_tls(ctx->ctx);
if (sio == NULL)
goto error;
in = d2i_bio_max(&DEO_MSG_it, sio, NULL, DEO_MAX_INPUT);
if (in == NULL)
goto error;
switch (in->type) {
case DEO_MSG_TYPE_CRT_REQ:
ASN1_item_i2d_bio(&DEO_MSG_it, sio, &(DEO_MSG) {
.type = DEO_MSG_TYPE_CRT_REP,
.value.crt_rep = ctx->crt
});
break;
case DEO_MSG_TYPE_DEC_REQ: {
DEO_ERR err = DEO_ERR_NONE;
AUTO(ASN1_OCTET_STRING, pt);
err = decrypt(ctx, in->value.dec_req, &pt);
if (err != DEO_ERR_NONE) {
SEND_ERR(sio, err);
break;
}
ASN1_item_i2d_bio(&DEO_MSG_it, sio, &(DEO_MSG) {
.type = DEO_MSG_TYPE_DEC_REP,
.value.dec_rep = pt
});
break;
}
static int
decryptd(int argc, char *argv[])
{
const char *hp = DEO_SOCKET;
const char *tlsfile = NULL;
const char *encfile = NULL;
const char *decdir = NULL;
int ret = EXIT_FAILURE;
AUTO(ctx, ctx);
int lfds = 0;
int sock = 0;
signal(SIGINT, on_signal);
signal(SIGQUIT, on_signal);
signal(SIGTERM, on_signal);
signal(SIGUSR1, on_signal);
signal(SIGUSR2, on_signal);
if (!deo_getopt(argc, argv, "ht:e:d:l:", "", NULL, NULL,
option, &tlsfile, option, &encfile,
option, &decdir, option, &hp)
|| tlsfile == NULL || encfile == NULL || decdir == NULL
|| (ctx = ctx_init(tlsfile, encfile, decdir)) == NULL) {
ERR_print_errors_fp(stderr);
fprintf(stderr, "Usage: deo decryptd "
"[-l <[host:]port>] -t <tlsfile> "
"-e <encfile> -d <decdir>\n");
return EXIT_FAILURE;
}
lfds = sd_listen_fds(0);
if (lfds <= 0) {
sock = BIO_get_accept_socket((char *) hp, 0);
if (sock < 0) {
ERR_print_errors_fp(stderr);
goto error;
}
if (listen(sock, 64) != 0)
goto error;
}
while (true) {
DEO_ERR err = DEO_ERR_NONE;
AUTO(ASN1_OCTET_STRING, pt);
AUTO(DEO_MSG, in);
AUTO(BIO, sio);
AUTO_FD(cfd);
int lfd;
if (!have_conn(lfds, sock, &lfd))
break;
if (!do_accept(ctx->ctx, lfd, &cfd, &sio))
continue;
in = d2i_bio_max(&DEO_MSG_it, sio, NULL, DEO_MAX_INPUT);
if (in == NULL)
continue;
switch (in->type) {
case DEO_MSG_TYPE_CRT_REQ:
ASN1_item_i2d_bio(&DEO_MSG_it, sio, &(DEO_MSG) {
.type = DEO_MSG_TYPE_CRT_REP,
.value.crt_rep = ctx->crt
});
break;
case DEO_MSG_TYPE_DEC_REQ:
err = decrypt(ctx, in->value.dec_req, &pt);
if (err != DEO_ERR_NONE) {
SEND_ERR(sio, err);
break;
}
ASN1_item_i2d_bio(&DEO_MSG_it, sio, &(DEO_MSG) {
.type = DEO_MSG_TYPE_DEC_REP,
.value.dec_rep = pt
});
break;
default:
break;
}
