Add ocspreq command

2026-06-19 19:33:38 +08:00 · 2026-06-08 19:34:04 +08:00
parent f26781f2b1
commit 87f5111760
6 changed files with 871 additions and 39 deletions
--- a/tools/ocspreq.c
+++ b/tools/ocspreq.c
@@ -0,0 +1,125 @@
+/*
+ *  Copyright 2014-2026 The GmSSL Project. All Rights Reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the License); you may
+ *  not use this file except in compliance with the License.
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ */
+
+
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
+#include <gmssl/digest.h>
+#include <gmssl/x509.h>
+#include <gmssl/ocsp.h>
+#include <gmssl/error.h>
+
+
+static const char *options = "-in pem [-digest name] [-out der]";
+
+static const char *help =
+"Options\n"
+"\n"
+"    -in pem             Input certificate chain file in PEM format\n"
+"                        The first certificate is the certificate to be checked\n"
+"                        The second certificate is its issuer certificate\n"
+"    -digest name        Digest algorithm for CertID, default sm3\n"
+"    -out der | stdout   Output OCSPRequest in DER format\n"
+"\n"
+"Examples\n"
+"\n"
+"    gmssl ocspreq -in chain.pem -out req.der\n"
+"\n";
+
+
+int ocspreq_main(int argc, char **argv)
+{
+	int ret = 1;
+	char *prog = argv[0];
+	char *infile = NULL;
+	char *outfile = NULL;
+	char *digest_name_str = "sm3";
+	FILE *infp = stdin;
+	FILE *outfp = stdout;
+	const DIGEST *digest;
+	uint8_t cert[18192];
+	size_t certlen;
+	uint8_t issuer_cert[18192];
+	size_t issuer_certlen;
+	uint8_t req[1024];
+	size_t reqlen;
+
+	argc--;
+	argv++;
+
+	while (argc > 0) {
+		if (!strcmp(*argv, "-help")) {
+			printf("usage: %s %s\n", prog, options);
+			printf("%s\n", help);
+			ret = 0;
+			goto end;
+		} else if (!strcmp(*argv, "-in")) {
+			if (--argc < 1) goto bad;
+			infile = *(++argv);
+			if (!(infp = fopen(infile, "rb"))) {
+				fprintf(stderr, "%s: open '%s' failure : %s\n", prog, infile, strerror(errno));
+				goto end;
+			}
+		} else if (!strcmp(*argv, "-digest")) {
+			if (--argc < 1) goto bad;
+			digest_name_str = *(++argv);
+		} else if (!strcmp(*argv, "-out")) {
+			if (--argc < 1) goto bad;
+			outfile = *(++argv);
+			if (!(outfp = fopen(outfile, "wb"))) {
+				fprintf(stderr, "%s: open '%s' failure : %s\n", prog, outfile, strerror(errno));
+				goto end;
+			}
+		} else {
+			fprintf(stderr, "%s: illegal option `%s`\n", prog, *argv);
+			goto end;
+bad:
+			fprintf(stderr, "%s: `%s` option value missing\n", prog, *argv);
+			goto end;
+		}
+
+		argc--;
+		argv++;
+	}
+
+	if (!infile) {
+		fprintf(stderr, "%s: `-in` option required\n", prog);
+		goto end;
+	}
+	if (!(digest = digest_from_name(digest_name_str))) {
+		fprintf(stderr, "%s: invalid `-digest` value\n", prog);
+		goto end;
+	}
+	if (x509_cert_from_pem(cert, &certlen, sizeof(cert), infp) != 1) {
+		fprintf(stderr, "%s: read certificate failure\n", prog);
+		goto end;
+	}
+	if (x509_cert_from_pem(issuer_cert, &issuer_certlen, sizeof(issuer_cert), infp) != 1) {
+		fprintf(stderr, "%s: read issuer certificate failure\n", prog);
+		goto end;
+	}
+	if (ocsp_request_generate(req, &reqlen, sizeof(req),
+			cert, certlen, issuer_cert, issuer_certlen, digest) != 1) {
+		fprintf(stderr, "%s: generate OCSPRequest failure\n", prog);
+		goto end;
+	}
+	if (fwrite(req, 1, reqlen, outfp) != reqlen) {
+		fprintf(stderr, "%s: output failure : %s\n", prog, strerror(errno));
+		goto end;
+	}
+
+	ret = 0;
+
+end:
+	if (infile && infp) fclose(infp);
+	if (outfile && outfp) fclose(outfp);
+	return ret;
+}