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/*
* Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "apps.h"
#include "progs.h"
#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
#include <openssl/ssl.h>
typedef enum OPTION_choice {
OPT_COMMON,
OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT,
OPT_TEXT, OPT_CERT, OPT_NOOUT, OPT_CONTEXT
} OPTION_CHOICE;
const OPTIONS sess_id_options[] = {
OPT_SECTION("General"),
{"help", OPT_HELP, '-', "Display this summary"},
{"context", OPT_CONTEXT, 's', "Set the session ID context"},
OPT_SECTION("Input"),
{"in", OPT_IN, 's', "Input file - default stdin"},
{"inform", OPT_INFORM, 'F', "Input format - default PEM (DER or PEM)"},
OPT_SECTION("Output"),
{"out", OPT_OUT, '>', "Output file - default stdout"},
{"outform", OPT_OUTFORM, 'f',
"Output format - default PEM (PEM, DER or NSS)"},
{"text", OPT_TEXT, '-', "Print ssl session id details"},
{"cert", OPT_CERT, '-', "Output certificate "},
{"noout", OPT_NOOUT, '-', "Don't output the encoded session info"},
{NULL}
};
static SSL_SESSION *load_sess_id(char *file, int format);
int sess_id_main(int argc, char **argv)
{
SSL_SESSION *x = NULL;
X509 *peer = NULL;
BIO *out = NULL;
char *infile = NULL, *outfile = NULL, *context = NULL, *prog;
int informat = FORMAT_PEM, outformat = FORMAT_PEM;
int cert = 0, noout = 0, text = 0, ret = 1, i, num = 0;
OPTION_CHOICE o;
prog = opt_init(argc, argv, sess_id_options);
while ((o = opt_next()) != OPT_EOF) {
switch (o) {
case OPT_EOF:
case OPT_ERR:
opthelp:
BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
goto end;
case OPT_HELP:
opt_help(sess_id_options);
ret = 0;
goto end;
case OPT_INFORM:
if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
goto opthelp;
break;
case OPT_OUTFORM:
if (!opt_format(opt_arg(), OPT_FMT_PEMDER | OPT_FMT_NSS,
&outformat))
goto opthelp;
break;
case OPT_IN:
infile = opt_arg();
break;
case OPT_OUT:
outfile = opt_arg();
break;
case OPT_TEXT:
text = ++num;
break;
case OPT_CERT:
cert = ++num;
break;
case OPT_NOOUT:
noout = ++num;
break;
case OPT_CONTEXT:
context = opt_arg();
break;
}
}
/* No extra arguments. */
argc = opt_num_rest();
if (argc != 0)
goto opthelp;
x = load_sess_id(infile, informat);
if (x == NULL) {
goto end;
}
peer = SSL_SESSION_get0_peer(x);
if (context != NULL) {
size_t ctx_len = strlen(context);
if (ctx_len > SSL_MAX_SID_CTX_LENGTH) {
BIO_printf(bio_err, "Context too long\n");
goto end;
}
if (!SSL_SESSION_set1_id_context(x, (unsigned char *)context,
ctx_len)) {
BIO_printf(bio_err, "Error setting id context\n");
goto end;
}
}
if (!noout || text) {
out = bio_open_default(outfile, 'w', outformat);
if (out == NULL)
goto end;
}
if (text) {
SSL_SESSION_print(out, x);
if (cert) {
if (peer == NULL)
BIO_puts(out, "No certificate present\n");
else
X509_print(out, peer);
}
}
if (!noout && !cert) {
if (outformat == FORMAT_ASN1) {
i = i2d_SSL_SESSION_bio(out, x);
} else if (outformat == FORMAT_PEM) {
i = PEM_write_bio_SSL_SESSION(out, x);
} else if (outformat == FORMAT_NSS) {
i = SSL_SESSION_print_keylog(out, x);
} else {
BIO_printf(bio_err, "bad output format specified for outfile\n");
goto end;
}
if (!i) {
BIO_printf(bio_err, "unable to write SSL_SESSION\n");
goto end;
}
} else if (!noout && (peer != NULL)) { /* just print the certificate */
if (outformat == FORMAT_ASN1) {
i = (int)i2d_X509_bio(out, peer);
} else if (outformat == FORMAT_PEM) {
i = PEM_write_bio_X509(out, peer);
} else {
BIO_printf(bio_err, "bad output format specified for outfile\n");
goto end;
}
if (!i) {
BIO_printf(bio_err, "unable to write X509\n");
goto end;
}
}
ret = 0;
end:
BIO_free_all(out);
SSL_SESSION_free(x);
return ret;
}
static SSL_SESSION *load_sess_id(char *infile, int format)
{
SSL_SESSION *x = NULL;
BIO *in = NULL;
in = bio_open_default(infile, 'r', format);
if (in == NULL)
goto end;
if (format == FORMAT_ASN1)
x = d2i_SSL_SESSION_bio(in, NULL);
else
x = PEM_read_bio_SSL_SESSION(in, NULL, NULL, NULL);
if (x == NULL) {
BIO_printf(bio_err, "unable to load SSL_SESSION\n");
ERR_print_errors(bio_err);
goto end;
}
end:
BIO_free(in);
return x;
}
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