swanctl: Implement a --list-certs command to print or export daemon certificates

This commit is contained in:
Martin Willi
2014-05-07 15:48:15 +02:00
parent ebe78940aa
commit 2d5c3a0f0f
3 changed files with 670 additions and 1 deletions
+1
View File
@@ -8,6 +8,7 @@ swanctl_SOURCES = \
commands/list_sas.c \
commands/list_pols.c \
commands/list_conns.c \
commands/list_certs.c \
commands/load_conns.c \
commands/load_creds.c \
commands/version.c \
+1 -1
View File
@@ -27,7 +27,7 @@
/**
* Maximum number of commands (+1).
*/
#define MAX_COMMANDS 11
#define MAX_COMMANDS 12
/**
* Maximum number of options in a command (+3)
+668
View File
@@ -0,0 +1,668 @@
/*
* Copyright (C) 2014 Martin Willi
* Copyright (C) 2014 revosec AG
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <errno.h>
#include <time.h>
#include <asn1/asn1.h>
#include <asn1/oid.h>
#include <credentials/certificates/certificate.h>
#include <credentials/certificates/x509.h>
#include <credentials/certificates/crl.h>
#include <credentials/certificates/ac.h>
#include <selectors/traffic_selector.h>
#include "command.h"
typedef enum {
FORMAT_RAW = (1<<0),
FORMAT_PEM = (1<<1),
} format_options_t;
/**
* Print PEM encoding of a certificate
*/
static void print_pem(certificate_t *cert)
{
chunk_t encoding;
if (cert->get_encoding(cert, CERT_PEM, &encoding))
{
printf("%.*s", (int)encoding.len, encoding.ptr);
free(encoding.ptr);
}
else
{
fprintf(stderr, "PEM encoding certificate failed\n");
}
}
/**
* Print public key information
*/
static void print_pubkey(public_key_t *key, bool has_privkey)
{
chunk_t chunk;
printf("pubkey: %N %d bits", key_type_names, key->get_type(key),
key->get_keysize(key));
if (has_privkey)
{
printf(", has private key");
}
printf("\n");
if (key->get_fingerprint(key, KEYID_PUBKEY_INFO_SHA1, &chunk))
{
printf("keyid: %#B\n", &chunk);
}
if (key->get_fingerprint(key, KEYID_PUBKEY_SHA1, &chunk))
{
printf("subjkey: %#B\n", &chunk);
}
}
/**
* Print X509 specific certificate information
*/
static void print_x509(x509_t *x509)
{
enumerator_t *enumerator;
identification_t *id;
traffic_selector_t *block;
chunk_t chunk;
bool first;
char *uri;
int len, explicit, inhibit;
x509_flag_t flags;
x509_cdp_t *cdp;
x509_cert_policy_t *policy;
x509_policy_mapping_t *mapping;
chunk = chunk_skip_zero(x509->get_serial(x509));
printf("serial: %#B\n", &chunk);
first = TRUE;
enumerator = x509->create_subjectAltName_enumerator(x509);
while (enumerator->enumerate(enumerator, &id))
{
if (first)
{
printf("altNames: ");
first = FALSE;
}
else
{
printf(", ");
}
printf("%Y", id);
}
if (!first)
{
printf("\n");
}
enumerator->destroy(enumerator);
flags = x509->get_flags(x509);
printf("flags: ");
if (flags & X509_CA)
{
printf("CA ");
}
if (flags & X509_CRL_SIGN)
{
printf("CRLSign ");
}
if (flags & X509_AA)
{
printf("AA ");
}
if (flags & X509_OCSP_SIGNER)
{
printf("OCSP ");
}
if (flags & X509_AA)
{
printf("AA ");
}
if (flags & X509_SERVER_AUTH)
{
printf("serverAuth ");
}
if (flags & X509_CLIENT_AUTH)
{
printf("clientAuth ");
}
if (flags & X509_IKE_INTERMEDIATE)
{
printf("iKEIntermediate ");
}
if (flags & X509_SELF_SIGNED)
{
printf("self-signed ");
}
printf("\n");
first = TRUE;
enumerator = x509->create_crl_uri_enumerator(x509);
while (enumerator->enumerate(enumerator, &cdp))
{
if (first)
{
printf("CRL URIs: %s", cdp->uri);
first = FALSE;
}
else
{
printf(" %s", cdp->uri);
}
if (cdp->issuer)
{
printf(" (CRL issuer: %Y)", cdp->issuer);
}
printf("\n");
}
enumerator->destroy(enumerator);
first = TRUE;
enumerator = x509->create_ocsp_uri_enumerator(x509);
while (enumerator->enumerate(enumerator, &uri))
{
if (first)
{
printf("OCSP URIs: %s\n", uri);
first = FALSE;
}
else
{
printf(" %s\n", uri);
}
}
enumerator->destroy(enumerator);
len = x509->get_constraint(x509, X509_PATH_LEN);
if (len != X509_NO_CONSTRAINT)
{
printf("pathlen: %d\n", len);
}
first = TRUE;
enumerator = x509->create_name_constraint_enumerator(x509, TRUE);
while (enumerator->enumerate(enumerator, &id))
{
if (first)
{
printf("Permitted NameConstraints:\n");
first = FALSE;
}
printf(" %Y\n", id);
}
enumerator->destroy(enumerator);
first = TRUE;
enumerator = x509->create_name_constraint_enumerator(x509, FALSE);
while (enumerator->enumerate(enumerator, &id))
{
if (first)
{
printf("Excluded NameConstraints:\n");
first = FALSE;
}
printf(" %Y\n", id);
}
enumerator->destroy(enumerator);
first = TRUE;
enumerator = x509->create_cert_policy_enumerator(x509);
while (enumerator->enumerate(enumerator, &policy))
{
char *oid;
if (first)
{
printf("CertificatePolicies:\n");
first = FALSE;
}
oid = asn1_oid_to_string(policy->oid);
if (oid)
{
printf(" %s\n", oid);
free(oid);
}
else
{
printf(" %#B\n", &policy->oid);
}
if (policy->cps_uri)
{
printf(" CPS: %s\n", policy->cps_uri);
}
if (policy->unotice_text)
{
printf(" Notice: %s\n", policy->unotice_text);
}
}
enumerator->destroy(enumerator);
first = TRUE;
enumerator = x509->create_policy_mapping_enumerator(x509);
while (enumerator->enumerate(enumerator, &mapping))
{
char *issuer_oid, *subject_oid;
if (first)
{
printf("PolicyMappings:\n");
first = FALSE;
}
issuer_oid = asn1_oid_to_string(mapping->issuer);
subject_oid = asn1_oid_to_string(mapping->subject);
printf(" %s => %s\n", issuer_oid, subject_oid);
free(issuer_oid);
free(subject_oid);
}
enumerator->destroy(enumerator);
explicit = x509->get_constraint(x509, X509_REQUIRE_EXPLICIT_POLICY);
inhibit = x509->get_constraint(x509, X509_INHIBIT_POLICY_MAPPING);
len = x509->get_constraint(x509, X509_INHIBIT_ANY_POLICY);
if (explicit != X509_NO_CONSTRAINT || inhibit != X509_NO_CONSTRAINT ||
len != X509_NO_CONSTRAINT)
{
printf("PolicyConstraints:\n");
if (explicit != X509_NO_CONSTRAINT)
{
printf(" requireExplicitPolicy: %d\n", explicit);
}
if (inhibit != X509_NO_CONSTRAINT)
{
printf(" inhibitPolicyMapping: %d\n", inhibit);
}
if (len != X509_NO_CONSTRAINT)
{
printf(" inhibitAnyPolicy: %d\n", len);
}
}
chunk = x509->get_authKeyIdentifier(x509);
if (chunk.ptr)
{
printf("authkeyId: %#B\n", &chunk);
}
chunk = x509->get_subjectKeyIdentifier(x509);
if (chunk.ptr)
{
printf("subjkeyId: %#B\n", &chunk);
}
if (x509->get_flags(x509) & X509_IP_ADDR_BLOCKS)
{
first = TRUE;
printf("addresses: ");
enumerator = x509->create_ipAddrBlock_enumerator(x509);
while (enumerator->enumerate(enumerator, &block))
{
if (first)
{
first = FALSE;
}
else
{
printf(", ");
}
printf("%R", block);
}
enumerator->destroy(enumerator);
printf("\n");
}
}
/**
* Print CRL specific information
*/
static void print_crl(crl_t *crl)
{
enumerator_t *enumerator;
time_t ts;
crl_reason_t reason;
chunk_t chunk;
int count = 0;
bool first;
char buf[64];
struct tm tm;
x509_cdp_t *cdp;
chunk = chunk_skip_zero(crl->get_serial(crl));
printf("serial: %#B\n", &chunk);
if (crl->is_delta_crl(crl, &chunk))
{
chunk = chunk_skip_zero(chunk);
printf("delta CRL: for serial %#B\n", &chunk);
}
chunk = crl->get_authKeyIdentifier(crl);
printf("authKeyId: %#B\n", &chunk);
first = TRUE;
enumerator = crl->create_delta_crl_uri_enumerator(crl);
while (enumerator->enumerate(enumerator, &cdp))
{
if (first)
{
printf("freshest: %s", cdp->uri);
first = FALSE;
}
else
{
printf(" %s", cdp->uri);
}
if (cdp->issuer)
{
printf(" (CRL issuer: %Y)", cdp->issuer);
}
printf("\n");
}
enumerator->destroy(enumerator);
enumerator = crl->create_enumerator(crl);
while (enumerator->enumerate(enumerator, &chunk, &ts, &reason))
{
count++;
}
enumerator->destroy(enumerator);
printf("%d revoked certificate%s%s\n", count,
count == 1 ? "" : "s", count ? ":" : "");
enumerator = crl->create_enumerator(crl);
while (enumerator->enumerate(enumerator, &chunk, &ts, &reason))
{
chunk = chunk_skip_zero(chunk);
localtime_r(&ts, &tm);
strftime(buf, sizeof(buf), "%F %T", &tm);
printf(" %#B %N %s\n", &chunk, crl_reason_names, reason, buf);
count++;
}
enumerator->destroy(enumerator);
}
/**
* Print AC specific information
*/
static void print_ac(ac_t *ac)
{
ac_group_type_t type;
identification_t *id;
enumerator_t *groups;
chunk_t chunk;
bool first = TRUE;
chunk = chunk_skip_zero(ac->get_serial(ac));
printf("serial: %#B\n", &chunk);
id = ac->get_holderIssuer(ac);
if (id)
{
printf("hissuer: \"%Y\"\n", id);
}
chunk = chunk_skip_zero(ac->get_holderSerial(ac));
if (chunk.ptr)
{
printf("hserial: %#B\n", &chunk);
}
groups = ac->create_group_enumerator(ac);
while (groups->enumerate(groups, &type, &chunk))
{
int oid;
char *str;
if (first)
{
printf("groups: ");
first = FALSE;
}
else
{
printf(" ");
}
switch (type)
{
case AC_GROUP_TYPE_STRING:
printf("%.*s", (int)chunk.len, chunk.ptr);
break;
case AC_GROUP_TYPE_OID:
oid = asn1_known_oid(chunk);
if (oid == OID_UNKNOWN)
{
str = asn1_oid_to_string(chunk);
if (str)
{
printf("%s", str);
free(str);
}
else
{
printf("OID:%#B", &chunk);
}
}
else
{
printf("%s", oid_names[oid].name);
}
break;
case AC_GROUP_TYPE_OCTETS:
printf("%#B", &chunk);
break;
}
printf("\n");
}
groups->destroy(groups);
chunk = ac->get_authKeyIdentifier(ac);
if (chunk.ptr)
{
printf("authkey: %#B\n", &chunk);
}
}
/**
* Print certificate information
*/
static void print_cert(certificate_t *cert, bool has_privkey)
{
time_t now, notAfter, notBefore;
public_key_t *key;
now = time(NULL);
printf("cert: %N\n", certificate_type_names, cert->get_type(cert));
if (cert->get_type(cert) != CERT_X509_CRL)
{
printf("subject: \"%Y\"\n", cert->get_subject(cert));
}
printf("issuer: \"%Y\"\n", cert->get_issuer(cert));
cert->get_validity(cert, &now, &notBefore, &notAfter);
printf("validity: not before %T, ", &notBefore, FALSE);
if (now < notBefore)
{
printf("not valid yet (valid in %V)\n", &now, &notBefore);
}
else
{
printf("ok\n");
}
printf(" not after %T, ", &notAfter, FALSE);
if (now > notAfter)
{
printf("expired (%V ago)\n", &now, &notAfter);
}
else
{
printf("ok (expires in %V)\n", &now, &notAfter);
}
switch (cert->get_type(cert))
{
case CERT_X509:
print_x509((x509_t*)cert);
break;
case CERT_X509_CRL:
print_crl((crl_t*)cert);
break;
case CERT_X509_AC:
print_ac((ac_t*)cert);
break;
default:
fprintf(stderr, "parsing certificate subtype %N not implemented\n",
certificate_type_names, cert->get_type(cert));
break;
}
key = cert->get_public_key(cert);
if (key)
{
print_pubkey(key, has_privkey);
key->destroy(key);
}
printf("\n");
}
CALLBACK(list_cb, void,
format_options_t *format, char *name, vici_res_t *res)
{
if (*format & FORMAT_RAW)
{
vici_dump(res, "list-cert event", stdout);
}
else
{
certificate_type_t type;
certificate_t *cert;
void *buf;
int len;
bool has_privkey;
buf = vici_find(res, &len, "data");
type = enum_from_name(certificate_type_names,
vici_find_str(res, "ANY", "type"));
has_privkey = streq(vici_find_str(res, "no", "has_privkey"), "yes");
if (type != -1 && type != CERT_ANY && buf)
{
cert = lib->creds->create(lib->creds, CRED_CERTIFICATE, type,
BUILD_BLOB_ASN1_DER, chunk_create(buf, len),
BUILD_END);
if (cert)
{
if (*format & FORMAT_PEM)
{
print_pem(cert);
}
else
{
print_cert(cert, has_privkey);
}
cert->destroy(cert);
}
else
{
fprintf(stderr, "parsing certificate failed\n");
}
}
else
{
fprintf(stderr, "received incomplete certificate data\n");
}
}
}
static int list_certs(vici_conn_t *conn)
{
vici_req_t *req;
vici_res_t *res;
format_options_t format = 0;
char *arg, *subject = NULL, *type = NULL;
while (TRUE)
{
switch (command_getopt(&arg))
{
case 'h':
return command_usage(NULL);
case 's':
subject = arg;
continue;
case 't':
type = arg;
continue;
case 'p':
format |= FORMAT_PEM;
continue;
case 'r':
format |= FORMAT_RAW;
continue;
case EOF:
break;
default:
return command_usage("invalid --list-certs option");
}
break;
}
if (vici_register(conn, "list-cert", list_cb, &format) != 0)
{
fprintf(stderr, "registering for certificates failed: %s\n",
strerror(errno));
return errno;
}
req = vici_begin("list-certs");
if (type)
{
vici_add_key_valuef(req, "type", "%s", type);
}
if (subject)
{
vici_add_key_valuef(req, "subject", "%s", subject);
}
res = vici_submit(req, conn);
if (!res)
{
fprintf(stderr, "list-certs request failed: %s\n", strerror(errno));
return errno;
}
if (format & FORMAT_RAW)
{
vici_dump(res, "list-certs reply", stdout);
}
vici_free_res(res);
return 0;
}
/**
* Register the command.
*/
static void __attribute__ ((constructor))reg()
{
command_register((command_t) {
list_certs, 'x', "list-certs", "list stored certificates",
{"[--subject <dn/san>] [--type X509|X509_AC|X509_CRL] [--pem] [--raw]"},
{
{"help", 'h', 0, "show usage information"},
{"subject", 's', 1, "filter by certificate subject"},
{"type", 't', 1, "filter by certificate type"},
{"pem", 'p', 0, "print PEM encoding of certificate"},
{"raw", 'r', 0, "dump raw response message"},
}
});
}