提交 c2908538 编写于 作者: P Paul Yang 提交者: Andy Polyakov

Add '-ext' option to display extensions in 'x509'

This is to address issue #3932. Support comma-separated string
to specify what extensions to be displayed.
Reviewed-by: NPaul Dale <paul.dale@oracle.com>
Reviewed-by: NAndy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4016)

Remove redundant variable

[to be squashed]
上级 a970b14f
......@@ -42,6 +42,7 @@ static int x509_certify(X509_STORE *ctx, const char *CAfile, const EVP_MD *diges
const char *section, ASN1_INTEGER *sno, int reqfile,
int preserve_dates);
static int purpose_print(BIO *bio, X509 *cert, X509_PURPOSE *pt);
static int print_x509v3_exts(BIO *bio, X509 *x, const char *exts);
typedef enum OPTION_choice {
OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
......@@ -59,7 +60,7 @@ typedef enum OPTION_choice {
OPT_SUBJECT_HASH_OLD,
OPT_ISSUER_HASH_OLD,
OPT_BADSIG, OPT_MD, OPT_ENGINE, OPT_NOCERT, OPT_PRESERVE_DATES,
OPT_R_ENUM
OPT_R_ENUM, OPT_EXT
} OPTION_CHOICE;
const OPTIONS x509_options[] = {
......@@ -117,6 +118,7 @@ const OPTIONS x509_options[] = {
{"CAserial", OPT_CASERIAL, 's', "Serial file"},
{"set_serial", OPT_SET_SERIAL, 's', "Serial number to use"},
{"text", OPT_TEXT, '-', "Print the certificate in text form"},
{"ext", OPT_EXT, 's', "Print various X509V3 extensions"},
{"C", OPT_C, '-', "Print out C code forms"},
{"extfile", OPT_EXTFILE, '<', "File with X509V3 extensions to add"},
OPT_R_OPTIONS,
......@@ -162,7 +164,7 @@ int x509_main(int argc, char **argv)
X509_STORE *ctx = NULL;
const EVP_MD *digest = NULL;
char *CAkeyfile = NULL, *CAserial = NULL, *fkeyfile = NULL, *alias = NULL;
char *checkhost = NULL, *checkemail = NULL, *checkip = NULL;
char *checkhost = NULL, *checkemail = NULL, *checkip = NULL, *exts = NULL;
char *extsect = NULL, *extfile = NULL, *passin = NULL, *passinarg = NULL;
char *infile = NULL, *outfile = NULL, *keyfile = NULL, *CAfile = NULL;
char *prog;
......@@ -174,7 +176,7 @@ int x509_main(int argc, char **argv)
int noout = 0, sign_flag = 0, CA_flag = 0, CA_createserial = 0, email = 0;
int ocsp_uri = 0, trustout = 0, clrtrust = 0, clrreject = 0, aliasout = 0;
int ret = 1, i, num = 0, badsig = 0, clrext = 0, nocert = 0;
int text = 0, serial = 0, subject = 0, issuer = 0, startdate = 0;
int text = 0, serial = 0, subject = 0, issuer = 0, startdate = 0, ext = 0;
int enddate = 0;
time_t checkoffset = 0;
unsigned long certflag = 0;
......@@ -377,6 +379,10 @@ int x509_main(int argc, char **argv)
case OPT_NOOUT:
noout = ++num;
break;
case OPT_EXT:
ext = ++num;
exts = opt_arg();
break;
case OPT_NOCERT:
nocert = 1;
break;
......@@ -839,6 +845,8 @@ int x509_main(int argc, char **argv)
noout = 1;
} else if (ocspid == i) {
X509_ocspid_print(out, x);
} else if (ext == i) {
print_x509v3_exts(out, x, exts);
}
}
}
......@@ -1097,3 +1105,93 @@ static int purpose_print(BIO *bio, X509 *cert, X509_PURPOSE *pt)
}
return 1;
}
static int parse_ext_names(char *names, const char **result)
{
char *p, *q;
int cnt = 0, len = 0;
p = q = names;
len = strlen(names);
while (q - names <= len) {
if (*q != ',' && *q != '\0') {
q++;
continue;
}
if (p != q) {
/* found */
if (result != NULL) {
result[cnt] = p;
*q = '\0';
}
cnt++;
}
p = ++q;
}
return cnt;
}
static int print_x509v3_exts(BIO *bio, X509 *x, const char *ext_names)
{
const STACK_OF(X509_EXTENSION) *exts = NULL;
STACK_OF(X509_EXTENSION) *exts2 = NULL;
X509_EXTENSION *ext = NULL;
ASN1_OBJECT *obj;
int i, j, ret = 0, num, nn = 0;
const char *sn, **names = NULL;
char *tmp_ext_names = NULL;
exts = X509_get0_extensions(x);
if ((num = sk_X509_EXTENSION_num(exts)) <= 0) {
BIO_printf(bio, "No extensions in certificate\n");
ret = 1;
goto end;
}
/* parse comma separated ext name string */
if ((tmp_ext_names = OPENSSL_strdup(ext_names)) == NULL)
goto end;
if ((nn = parse_ext_names(tmp_ext_names, NULL)) == 0) {
BIO_printf(bio, "Invalid extension names: %s\n", ext_names);
goto end;
}
if ((names = OPENSSL_malloc(sizeof(char *) * nn)) == NULL)
goto end;
parse_ext_names(tmp_ext_names, names);
for (i = 0; i < num; i++) {
ext = sk_X509_EXTENSION_value(exts, i);
/* check if this ext is what we want */
obj = X509_EXTENSION_get_object(ext);
sn = OBJ_nid2sn(OBJ_obj2nid(obj));
if (sn == NULL || strcmp(sn, "UNDEF") == 0)
continue;
for (j = 0; j < nn; j++) {
if (strcmp(sn, names[j]) == 0) {
/* push the extension into a new stack */
if (exts2 == NULL
&& (exts2 = sk_X509_EXTENSION_new_null()) == NULL)
goto end;
if (!sk_X509_EXTENSION_push(exts2, ext))
goto end;
}
}
}
if (!sk_X509_EXTENSION_num(exts2)) {
BIO_printf(bio, "No extensions matched with %s\n", ext_names);
ret = 1;
goto end;
}
ret = X509V3_extensions_print(bio, NULL, exts2, 0, 0);
end:
sk_X509_EXTENSION_free(exts2);
OPENSSL_free(names);
OPENSSL_free(tmp_ext_names);
return ret;
}
......@@ -53,6 +53,7 @@ B<openssl> B<x509>
[B<-CAserial filename>]
[B<-force_pubkey key>]
[B<-text>]
[B<-ext extensions>]
[B<-certopt option>]
[B<-C>]
[B<-[digest]>]
......@@ -157,6 +158,12 @@ Prints out the certificate in text form. Full details are output including the
public key, signature algorithms, issuer and subject names, serial number
any extensions present and any trust settings.
=item B<-ext extensions>
Prints out the certificate extensions in text form. Extensions are specified
with a comma separated string, e.g., "subjectAltName,subjectKeyIdentifier".
See the L<x509v3_config(5)> manual page for the extension names.
=item B<-certopt option>
Customise the output format used with B<-text>. The B<option> argument
......@@ -692,6 +699,14 @@ Display the contents of a certificate:
openssl x509 -in cert.pem -noout -text
Display the "Subject Alternative Name" extension of a certificate:
openssl x509 -in cert.pem -noout -ext subjectAltName
Display the more extensions of a certificate:
openssl x509 -in cert.pem -noout -ext subjectAltName,nsCertType
Display the certificate serial number:
openssl x509 -in cert.pem -noout -serial
......
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