/
sscep.c
1379 lines (1260 loc) · 35.4 KB
/
sscep.c
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/*
* sscep -- Simple SCEP client implementation
* Copyright (c) Jarkko Turkulainen 2003. All rights reserved.
* See the file COPYRIGHT for licensing information.
*/
/* Main routine */
#include "sscep.h"
char *pname;
int timeout;
/* configuration options, defined in cmd.h */
int c_flag;
char *c_char;
int C_flag;
char *C_char;
int d_flag;
int e_flag;
char *e_char;
char *E_char;
int E_flag;
int f_flag;
char *f_char;
char *F_char;
int F_flag;
char *g_char;
#ifdef WITH_ENGINES
int g_flag;
#endif
int h_flag;
int H_flag;
char *l_char;
int l_flag;
char *L_char;
int L_flag;
char *i_char;
int i_flag;
char *k_char;
int k_flag;
char *K_char;
int K_flag;
int m_flag;
char *m_char;
int M_flag;
char *M_char;
int n_flag;
int n_num;
char *O_char;
int O_flag;
char *p_char;
int p_flag;
char *r_char;
int r_flag;
int R_flag;
char *s_char;
int s_flag;
char *S_char;
int S_flag;
int t_num;
int t_flag;
int T_num;
int T_flag;
int u_flag;
char *url_char;
int v_flag;
int w_flag;
char *w_char;
int W_flag;
const EVP_MD *fp_alg;
const EVP_MD *sig_alg;
const EVP_CIPHER *enc_alg;
static SCEP_CAP scep_caps[SCEP_CAPS] = {
{ .cap = SCEP_CAP_AES, .str = "AES" }, /* AES128-CBC */
{ .cap = SCEP_CAP_3DES, .str = "DES3" }, /* DES-CBC */
{ .cap = SCEP_CAP_NEXT_CA, .str = "GetNextCACert" },
{ .cap = SCEP_CAP_POST_PKI, .str = "POSTPKIOperation" },
{ .cap = SCEP_CAP_RENEWAL, .str = "Renewal" },
{ .cap = SCEP_CAP_SHA_1, .str = "SHA-1" },
{ .cap = SCEP_CAP_SHA_224, .str = "SHA-224" },
{ .cap = SCEP_CAP_SHA_256, .str = "SHA-256" },
{ .cap = SCEP_CAP_SHA_384, .str = "SHA-384" },
{ .cap = SCEP_CAP_SHA_512, .str = "SHA-512" },
{ .cap = SCEP_CAP_STA, .str = "SCEPStandard" },
};
#define SUP_CAP_AES(cap) \
((cap & SCEP_CAP_AES) || (cap & SCEP_CAP_STA))
#define SUP_CAP_3DES(cap) \
(cap & SCEP_CAP_3DES)
#define SUP_CAP_NEXT_CA(cap) \
(cap & SCEP_CAP_NEXT_CA)
#define SUP_CAP_POST_PKI(cap) \
((cap & SCEP_CAP_POST_PKI) || (cap & SCEP_CAP_STA))
#define SUP_CAP_RENEWAL(cap) \
(cap & SCEP_CAP_RENEWAL)
#define SUP_CAP_SHA_1(cap) \
(cap & SCEP_CAP_SHA_1)
#define SUP_CAP_SHA_224(cap) \
(cap & SCEP_CAP_SHA_224)
#define SUP_CAP_SHA_256(cap) \
((cap & SCEP_CAP_SHA_256) || (cap & SCEP_CAP_STA))
#define SUP_CAP_SHA_384(cap) \
(cap & SCEP_CAP_SHA_384)
#define SUP_CAP_SHA_512(cap) \
(cap & SCEP_CAP_SHA_512)
#define SUP_CAP_STA(cap) \
(cap & SCEP_CAP_STA)
const EVP_CIPHER *get_cipher_alg(const char *arg, int ca_caps)
{
if (!arg) {
if (SUP_CAP_AES(ca_caps))
return EVP_aes_128_cbc();
else if (SUP_CAP_3DES(ca_caps))
return EVP_des_ede3_cbc();
else
return EVP_des_cbc();
} else if (!strncmp(arg, "blowfish", 8)) {
return EVP_bf_cbc();
} else if (!strncmp(arg, "des", 3)) {
return EVP_des_cbc();
} else if (!strncmp(arg, "3des", 4)) {
return EVP_des_ede3_cbc();
} else if (!strncmp(arg, "aes128", 6)) {
return EVP_aes_128_cbc();
} else if (!strncmp(arg, "aes192", 6)) {
return EVP_aes_192_cbc();
} else if (!strncmp(arg, "aes256", 6)) {
return EVP_aes_256_cbc();
} else if (!strncmp(arg, "aes", 3)) {
/* per RFC8894 "AES" represents "AES128-CBC" */
return EVP_aes_128_cbc();
} else {
return NULL;
}
}
const EVP_MD *get_digest_alg(const char *arg, int ca_caps)
{
if (!arg) {
if (SUP_CAP_SHA_512(ca_caps))
return EVP_sha512();
else if (SUP_CAP_SHA_384(ca_caps))
return EVP_sha384();
else if (SUP_CAP_SHA_256(ca_caps))
return EVP_sha256();
else if (SUP_CAP_SHA_224(ca_caps))
return EVP_sha224();
else if (SUP_CAP_SHA_1(ca_caps))
return EVP_sha1();
else
return EVP_md5();
} else if (!strncmp(arg, "md5", 3)) {
return EVP_md5();
} else if (!strncmp(arg, "sha1", 4)) {
return EVP_sha1();
} else if (!strncmp(arg, "sha224", 6)) {
return EVP_sha224();
} else if (!strncmp(arg, "sha256", 6)) {
return EVP_sha256();
} else if (!strncmp(arg, "sha384", 6)) {
return EVP_sha384();
} else if (!strncmp(arg, "sha512", 6)) {
return EVP_sha512();
} else {
return NULL;
}
}
static char *
handle_serial (char * serial)
{
int hex = NULL != strchr (serial, ':');
/* Convert serial to a decimal serial when input is
a hexidecimal representation of the serial */
if (hex)
{
unsigned int i,ii;
char *tmp_serial = (char*) calloc (strlen (serial) + 1,1);
for (i=0,ii=0; '\0'!=serial[i];i++)
{
if (':'!=serial[i])
tmp_serial[ii++]=serial[i];
}
serial=tmp_serial;
}
else
{
unsigned int i;
for (i=0; ! hex && '\0' != serial[i]; i++)
hex = 'a'==serial[i]||'b'==serial[i]||'c'==serial[i]||'d'==serial[i]||'e'==serial[i]||'f'==serial[i];
}
if (hex)
{
ASN1_INTEGER* ai;
BIGNUM *ret;
BIO* in = BIO_new_mem_buf(serial, -1);
char buf[1025];
ai=ASN1_INTEGER_new();
if (ai == NULL) return NULL;
if (!a2i_ASN1_INTEGER(in,ai,buf,1024))
{
return NULL;
}
ret=ASN1_INTEGER_to_BN(ai,NULL);
if (ret == NULL)
{
return NULL;
}
else
{
serial = BN_bn2dec(ret);
}
}
return serial;
} /* handle_serial */
int
main(int argc, char **argv) {
//ENGINE *e = NULL;
int operation_flag;
int c, host_port = 80, count = 1, cnt = 0;
char *host_name, *p, *dir_name = NULL;
struct http_reply reply;
unsigned int n;
unsigned char md[EVP_MAX_MD_SIZE];
struct scep scep_t= {0};
FILE *fp = NULL;
BIO *bp;
STACK_OF(X509) *nextcara = NULL;
X509 *cert=NULL;
int i;
size_t required_option_space;
int ca_caps = 0;
int pkistatus = 0;
#ifdef WIN32
WORD wVersionRequested;
WSADATA wsaData;
int err;
//printf("Starting sscep\n");
//fprintf(stdout, "%s: starting sscep on WIN32, sscep version %s\n", pname, VERSION);
wVersionRequested = MAKEWORD( 2, 2 );
err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 )
{
/* Tell the user that we could not find a usable */
/* WinSock DLL. */
return;
}
/* Confirm that the WinSock DLL supports 2.2.*/
/* Note that if the DLL supports versions greater */
/* than 2.2 in addition to 2.2, it will still return */
/* 2.2 in wVersion since that is the version we */
/* requested. */
if ( LOBYTE( wsaData.wVersion ) != 2 ||
HIBYTE( wsaData.wVersion ) != 2 )
{
/* Tell the user that we could not find a usable */
/* WinSock DLL. */
WSACleanup( );
return;
}
#endif
/* Initialize scep layer */
init_scep();
/* Set program name */
pname = argv[0];
/* Set timeout */
timeout = TIMEOUT;
/* Check operation parameter */
if (!argv[1]) {
usage();
} else if (!strncmp(argv[1], "getca", 5)) {
operation_flag = SCEP_OPERATION_GETCA;
if (!strncmp(argv[1], "getcaps", 7))
operation_flag = SCEP_OPERATION_GETCAPS;
} else if (!strncmp(argv[1], "enroll", 6)) {
operation_flag = SCEP_OPERATION_ENROLL;
} else if (!strncmp(argv[1], "getcert", 7)) {
operation_flag = SCEP_OPERATION_GETCERT;
} else if (!strncmp(argv[1], "getcrl", 6)) {
operation_flag = SCEP_OPERATION_GETCRL;
} else if (!strncmp(argv[1], "getnextca", 9)) {
operation_flag = SCEP_OPERATION_GETNEXTCA;
} else {
fprintf(stderr, "%s: missing or illegal operation parameter\n",
argv[0]);
usage();
}
/* Skip first parameter and parse the rest of the command */
optind++;
while ((c = getopt(argc, argv, "c:C:de:E:f:g:hF:i:k:K:l:L:n:O:p:r:Rs:S:t:T:u:vw:W:m:HM:")) != -1)
switch(c) {
case 'c':
c_flag = 1;
c_char = optarg;
break;
case 'C':
C_flag = 1;
C_char = optarg;
break;
case 'd':
d_flag = 1;
break;
case 'e':
e_flag = 1;
e_char = optarg;
break;
case 'E':
E_flag = 1;
E_char = optarg;
break;
case 'F':
F_flag = 1;
F_char = optarg;
break;
case 'f':
f_flag = 1;
f_char = optarg;
break;
#ifdef WITH_ENGINES
case 'g':
g_flag = 1;
g_char = optarg;
break;
#endif
case 'h'://TODO change to eg. ID --inform=ID
h_flag = 1;
break;
case 'H':
H_flag = 1;
break;
case 'i':
i_flag = 1;
i_char = optarg;
break;
case 'k':
k_flag = 1;
k_char = optarg;
break;
case 'K':
K_flag = 1;
K_char = optarg;
break;
case 'l':
l_flag = 1;
l_char = optarg;
break;
case 'L':
L_flag = 1;
L_char = optarg;
break;
case 'm':
m_flag = 1;
m_char = optarg;
break;
case 'M':
if(!M_flag) {
/* if this is the first time the option appears, create a
* new string.
*/
required_option_space = strlen(optarg) + 1;
M_char = malloc(required_option_space);
if(!M_char)
error_memory();
strncpy(M_char, optarg, required_option_space);
// set the flag, so we already have a string
M_flag = 1;
} else {
/* we already have a string, just extend it. */
// old part + new part + &-sign + null byte
required_option_space = strlen(M_char) + strlen(optarg) + 2;
M_char = realloc(M_char, required_option_space);
if(!M_char)
error_memory();
strcat(M_char, "&");
strcat(M_char, optarg);
}
break;
case 'n':
n_flag = 1;
n_num = atoi(optarg);
break;
case 'O':
O_flag = 1;
O_char = optarg;
break;
case 'p':
p_flag = 1;
p_char = optarg;
break;
case 'r':
r_flag = 1;
r_char = optarg;
break;
case 'R':
R_flag = 1;
break;
case 's':
s_flag = 1;
/*s_char = optarg;*/
s_char = handle_serial(optarg);
break;
case 'S':
S_flag = 1;
S_char = optarg;
break;
case 't':
t_flag = 1;
t_num = atoi(optarg);
break;
case 'T':
T_flag = 1;
T_num = atoi(optarg);
break;
case 'u':
u_flag = 1;
url_char = optarg;
break;
case 'v':
v_flag = 1;
break;
case 'w':
w_flag = 1;
w_char = optarg;
break;
case 'W':
W_flag = atoi(optarg);
break;
default:
printf("argv: %s\n", argv[optind]);
usage();
}
argc -= optind;
argv += optind;
/* If we debug, include verbose messages also */
if (d_flag)
v_flag = 1;
if(f_char){
scep_conf_init(f_char, operation_flag);
}else{
scep_conf = NULL; //moved init to here otherwise compile error on windows
}
if (v_flag)
fprintf(stdout, "%s: starting sscep, version %s\n",
pname, VERSION);
/*
* Create a new SCEP transaction and self-signed
* certificate based on cert request
*/
if (v_flag)
fprintf(stdout, "%s: new transaction\n", pname);
new_transaction(&scep_t, operation_flag);
#ifdef WITH_ENGINES
/*enable Engine Support */
if (g_flag) {
scep_t.e = scep_engine_init();
}
#endif
/*
* Check argument logic.
*/
if (!c_flag && operation_flag != SCEP_OPERATION_GETCAPS) {
if (operation_flag == SCEP_OPERATION_GETCA) {
fprintf(stderr,
"%s: missing CA certificate filename (-c)\n", pname);
exit (SCEP_PKISTATUS_ERROR);
} else {
fprintf(stderr,
"%s: missing CA certificate (-c)\n", pname);
exit (SCEP_PKISTATUS_ERROR);
}
if (operation_flag == SCEP_OPERATION_GETNEXTCA) {
fprintf(stderr,
"%s: missing nextCA certificate target filename (-c)\n", pname);
exit (SCEP_PKISTATUS_ERROR);
} else {
fprintf(stderr,
"%s: missing nextCA certificate target filename(-c)\n", pname);
exit (SCEP_PKISTATUS_ERROR);
}
}
if (!C_flag) {
if (operation_flag == SCEP_OPERATION_GETNEXTCA) {
fprintf(stderr,
"%s: missing nextCA certificate chain filename (-C)\n", pname);
exit (SCEP_PKISTATUS_ERROR);
}
}
if (operation_flag == SCEP_OPERATION_ENROLL) {
if (!k_flag) {
fprintf(stderr, "%s: missing private key (-k)\n",pname);
exit (SCEP_PKISTATUS_ERROR);
}
if (!r_flag) {
fprintf(stderr, "%s: missing request (-r)\n",pname);
exit (SCEP_PKISTATUS_ERROR);
}
if (!l_flag) {
fprintf(stderr, "%s: missing local cert (-l)\n",pname);
exit (SCEP_PKISTATUS_ERROR);
}
/* Set polling limits */
if (!n_flag)
n_num = MAX_POLL_COUNT;
if (!t_flag)
t_num = POLL_TIME;
if (!T_flag)
T_num = MAX_POLL_TIME;
}
if (operation_flag == SCEP_OPERATION_GETCERT) {
if (!l_flag) {
fprintf(stderr, "%s: missing local cert (-l)\n",pname);
exit (SCEP_PKISTATUS_ERROR);
}
if (!s_flag) {
fprintf(stderr, "%s: missing serial no (-s)\n", pname);
exit (SCEP_PKISTATUS_ERROR);
}
if (!w_flag) {
fprintf(stderr, "%s: missing cert file (-w)\n",pname);
exit (SCEP_PKISTATUS_ERROR);
}
if (!k_flag) {
fprintf(stderr, "%s: missing private key (-k)\n",pname);
exit (SCEP_PKISTATUS_ERROR);
}
}
if (operation_flag == SCEP_OPERATION_GETCRL) {
if (!l_flag) {
fprintf(stderr, "%s: missing local cert (-l)\n",pname);
exit (SCEP_PKISTATUS_ERROR);
}
if (!w_flag) {
fprintf(stderr, "%s: missing crl file (-w)\n",pname);
exit (SCEP_PKISTATUS_ERROR);
}
if (!k_flag) {
fprintf(stderr, "%s: missing private key (-k)\n",pname);
exit (SCEP_PKISTATUS_ERROR);
}
}
/* Break down the URL */
if (!u_flag) {
fprintf(stderr, "%s: missing URL (-u)\n", pname);
exit (SCEP_PKISTATUS_ERROR);
}
if (strncmp(url_char, "http://", 7) && !p_flag) {
fprintf(stderr, "%s: illegal URL %s\n", pname, url_char);
exit (SCEP_PKISTATUS_ERROR);
}
if (p_flag) {
#ifdef WIN32
host_name = _strdup(p_char);
#else
host_name = strdup(p_char);
#endif
dir_name = url_char;
}
#ifdef WIN32
else if (!(host_name = _strdup(url_char + 7)))
#else
else if (!(host_name = strdup(url_char + 7)))
#endif
error_memory();
p = host_name;
c = 0;
cnt =0;
while (*p != '\0') {
if (*p == '/' && !p_flag && !c) {
*p = '\0';
if (*(p+1)) dir_name = p + 1;
c = 1;
}
if (*p == '[') { //For IPv6 starts from here
dir_name = (p+1);
host_name = dir_name;
while (*p != '\0') {
if (*p == ']') {
*p = '\0';
if (*(p+1) == ':') {
*(p+1) = '\0';
host_port = atoi(p+2);
}
}
p++;
}
} else {
if (!cnt && !p_flag && !c) {
dir_name = p;
cnt = 1;
}
if (*p == ':') {
*p = '\0';
if (*(p+1)) host_port = atoi(p+1);
}
}
p++;
}
if (!dir_name) {
fprintf(stderr, "%s: illegal URL %s\n", pname, url_char);
exit (SCEP_PKISTATUS_ERROR);
}
if (host_port < 1 || host_port > 65550) {
fprintf(stderr, "%s: illegal port number %d\n", pname,
host_port);
exit (SCEP_PKISTATUS_ERROR);
}
if (v_flag) {
fprintf(stdout, "%s: hostname: %s\n", pname, host_name);
fprintf(stdout, "%s: directory: %s\n", pname, dir_name);
fprintf(stdout, "%s: port: %d\n", pname, host_port);
}
if (v_flag)
fprintf(stdout, "%s: SCEP_OPERATION_GETCAPS\n",
pname);
/* Get server capabilities */
reply.payload = NULL;
if ((c = send_msg(&reply, 0, "GetCACaps", SCEP_OPERATION_GETCAPS, NULL, NULL, 0,
p_flag, host_name, host_port, dir_name)) == 1) {
fprintf(stderr, "%s: error while sending "
"message\n", pname);
exit (SCEP_PKISTATUS_NET);
}
if (v_flag)
fprintf(stdout, "%s\n", reply.payload);
if (reply.status == 200 && reply.payload != NULL) {
for ( i = 0 ; i < reply.bytes ; ) {
int _ca_caps = 0;
int j = i, k;
while (j < reply.bytes && !
(reply.payload[j] == '\r' ||
reply.payload[j] == '\n'))
++j;
while (j < reply.bytes &&
(reply.payload[j] == '\r' ||
reply.payload[j] == '\n'))
{
reply.payload[j] = '\0';
++j;
}
/* parse capabilities */
for ( k = 0 ; k < SCEP_CAPS ; ++k ) {
if (reply.payload[i] != scep_caps[k].str[0])
continue;
if (strcmp(&reply.payload[i], scep_caps[k].str) != 0)
continue;
_ca_caps |= scep_caps[k].cap;
}
if (_ca_caps == 0)
fprintf(stderr, "%s: unknown "
"capability %s\n",
pname, &reply.payload[i]);
else
ca_caps |= _ca_caps;
i = ( j == i ? j + 1 : j );
}
if (d_flag)
fprintf(stdout, "%s: scep caps bitmask: 0x%04x\n",
pname, ca_caps);
}
/* Check algorithms */
if ((enc_alg = get_cipher_alg(E_char, ca_caps)) == NULL) {
fprintf(stderr, "%s: unsupported algorithm: %s\n",
pname, E_char);
exit (SCEP_PKISTATUS_ERROR);
}
if ((sig_alg = get_digest_alg(S_char, ca_caps)) == NULL) {
fprintf(stderr, "%s: unsupported algorithm: %s\n",
pname, S_char);
exit (SCEP_PKISTATUS_ERROR);
}
/* Fingerprint algorithm */
if ((fp_alg = get_digest_alg(F_char, ca_caps)) == NULL) {
fprintf(stderr, "%s: unsupported algorithm: %s\n",
pname, F_char);
exit (SCEP_PKISTATUS_ERROR);
}
/*
* Switch to operation specific code
*/
switch(operation_flag) {
case SCEP_OPERATION_GETCA:
if (v_flag)
fprintf(stdout, "%s: SCEP_OPERATION_GETCA\n",
pname);
/* Set CA identifier */
if (!i_flag)
i_char = CA_IDENTIFIER;
/*
* Send http message.
* Response is written to http_response struct "reply".
*/
reply.payload = NULL;
if ((c = send_msg(&reply, 0, "GetCACert", operation_flag,
M_char, i_char, strlen(i_char),
p_flag, host_name, host_port, dir_name)) == 1) {
fprintf(stderr, "%s: error while sending "
"message\n", pname);
exit (SCEP_PKISTATUS_NET);
}
if (reply.payload == NULL) {
fprintf(stderr, "%s: no data, perhaps you "
"should define CA identifier (-i)\n", pname);
exit (SCEP_PKISTATUS_SUCCESS);
}
if (v_flag){
printf("%s: valid response from server\n", pname);
}
if (reply.type == SCEP_MIME_GETCA_RA) {
/* XXXXXXXXXXXXXXXXXXXXX chain not verified */
write_ca_ra(&reply);
}
/* Read payload as DER X.509 object: */
bp = BIO_new_mem_buf(reply.payload, reply.bytes);
cacert = d2i_X509_bio(bp, NULL);
/* Read and print certificate information */
if (!X509_digest(cacert, fp_alg, md, &n)) {
ERR_print_errors_fp(stderr);
exit (SCEP_PKISTATUS_ERROR);
}
if (v_flag){
printf("%s: %s fingerprint: ", pname,
OBJ_nid2sn(EVP_MD_type(fp_alg)));
for (c = 0; c < (int)n; c++) {
printf("%02X%c",md[c],
(c + 1 == (int)n) ?'\n':':');
}
}
/* Write PEM-formatted file: */
#ifdef WIN32
if ((fopen_s(&fp,c_char , "w")))
#else
if (!(fp = fopen(c_char, "w")))
#endif
{
fprintf(stderr, "%s: cannot open CA file for "
"writing\n", pname);
exit (SCEP_PKISTATUS_ERROR);
}
if (PEM_write_X509(fp, cacert) != 1) {
fprintf(stderr, "%s: error while writing CA "
"file\n", pname);
ERR_print_errors_fp(stderr);
exit (SCEP_PKISTATUS_ERROR);
}
if (v_flag)
printf("%s: CA certificate written as %s\n",
pname, c_char);
(void)fclose(fp);
scep_t.pki_status = pkistatus = SCEP_PKISTATUS_SUCCESS;
break;
case SCEP_OPERATION_GETNEXTCA:
if (v_flag)
fprintf(stdout, "%s: SCEP_OPERATION_GETNEXTCA\n",
pname);
/* Set CA identifier */
if (!i_flag)
i_char = CA_IDENTIFIER;
/*
* Send http message.
* Response is written to http_response struct "reply".
*/
reply.payload = NULL;
if ((c = send_msg(&reply, 0, "GetNextCACert", operation_flag,
M_char, i_char, strlen(i_char),
p_flag, host_name, host_port, dir_name)) == 1) {
if(v_flag){
fprintf(stderr, "%s: error while sending "
"message\n", pname);
fprintf(stderr, "%s: getnextCA might be not available"
"\n", pname);
}
exit (SCEP_PKISTATUS_NET);
}
if (reply.payload == NULL) {
fprintf(stderr, "%s: no data, perhaps you "
"there is no nextCA available\n", pname);
exit (SCEP_PKISTATUS_SUCCESS);
}
if(d_flag)
printf("%s: valid response from server\n", pname);
if (reply.type == SCEP_MIME_GETNEXTCA) {
/* XXXXXXXXXXXXXXXXXXXXX chain not verified */
//write_ca_ra(&reply);
/* Set the whole struct as 0 */
memset(&scep_t, 0, sizeof(scep_t));
scep_t.reply_payload = reply.payload;
scep_t.reply_len = reply.bytes;
scep_t.request_type = SCEP_MIME_GETNEXTCA;
pkcs7_verify_unwrap(&scep_t , C_char);
//pkcs7_unwrap(&scep_t);
}
/* Get certs */
nextcara = scep_t.reply_p7->d.sign->cert;
if (v_flag) {
printf ("verify and unwrap: found %d cert(s)\n", sk_X509_num(nextcara));
}
for (i = 0; i < sk_X509_num(nextcara); i++) {
char buffer[1024];
char name[1024];
memset(buffer, 0, 1024);
memset(name, 0, 1024);
cert = sk_X509_value(nextcara, i);
if (v_flag) {
printf("%s: found certificate with\n"
" subject: '%s'\n", pname,
X509_NAME_oneline(X509_get_subject_name(cert),
buffer, sizeof(buffer)));
printf(" issuer: %s\n",
X509_NAME_oneline(X509_get_issuer_name(cert),
buffer, sizeof(buffer)));
}
/* Create name */
snprintf(name, 1024, "%s-%d", c_char, i);
/* Write PEM-formatted file: */
if (!(fp = fopen(name, "w"))) {
fprintf(stderr, "%s: cannot open cert file for writing\n",
pname);
exit (SCEP_PKISTATUS_FILE);
}
if (v_flag)
printf("%s: writing cert\n", pname);
if (d_flag)
PEM_write_X509(stdout, cert);
if (PEM_write_X509(fp, cert) != 1) {
fprintf(stderr, "%s: error while writing certificate "
"file\n", pname);
ERR_print_errors_fp(stderr);
exit (SCEP_PKISTATUS_FILE);
}
if(v_flag)
printf("%s: certificate written as %s\n", pname, name);
(void)fclose(fp);
}
pkistatus = SCEP_PKISTATUS_SUCCESS;
break;
case SCEP_OPERATION_GETCERT:
case SCEP_OPERATION_GETCRL:
/* Read local certificate */
if (!l_flag) {
fprintf(stderr, "%s: missing local cert (-l)\n", pname);
exit (SCEP_PKISTATUS_FILE);
}
if (!(localcert = read_cert(l_char))) {
fprintf(stderr, "%s: cannot read local cert (-l) %s\n", pname, l_char);
exit(SCEP_PKISTATUS_FILE);
}
case SCEP_OPERATION_ENROLL:
/*
* Read in CA cert, private key and certificate
* request in global variables.
*/
if (!c_flag) {
fprintf(stderr, "%s: missing CA cert (-c)\n", pname);
exit (SCEP_PKISTATUS_FILE);
}
/* try to read certificate from a file */
if (!(cacert = read_cert(c_char))) {
/* if that fails, try to guess both CA certificates */
X509_NAME *issuer_name = (operation_flag == SCEP_OPERATION_GETCRL) ? X509_get_issuer_name(localcert) : NULL;
guess_ca_certs(c_char, issuer_name, &cacert, &encert, &issuer_cert);
if (!cacert) {
fprintf(stderr, "%s: cannot read CA cert (-c) file %s\n",
pname, c_char);
exit (SCEP_PKISTATUS_FILE);
}
/* if the CA cert was in a single file, read the enc CA cert too */
} else if (e_flag) {
if (!(encert = read_cert(e_char))) {
fprintf(stderr, "%s: cannot read enc CA cert (-e) file %s\n",
pname, e_char);
exit (SCEP_PKISTATUS_FILE);
}
} else
encert = NULL;
if (!k_flag) {
fprintf(stderr, "%s: missing private key (-k)\n", pname);
exit (SCEP_PKISTATUS_FILE);
}
#ifdef WITH_ENGINES
if(g_flag)
sscep_engine_read_key_new(&rsa, k_char, scep_t.e);
else
#endif
rsa = read_key(k_char);
if ((K_flag && !O_flag) || (O_flag && !K_flag && (operation_flag == SCEP_OPERATION_ENROLL))) {
fprintf(stderr, "%s: -O also requires -K (and vice-versa)\n", pname);
exit (SCEP_PKISTATUS_FILE);
}
if (K_flag) {
//TODO auf hwcrhk prfen?
#ifdef WITH_ENGINES
if(g_flag)
sscep_engine_read_key_old(&renewal_key, K_char, scep_t.e);
else
#endif
renewal_key = read_key(K_char);
}
if (O_flag) {
if (!(renewal_cert = read_cert(O_char))) {
fprintf(stderr, "%s: cannot read renewal cert (-O) %s\n", pname, O_char);
exit(SCEP_PKISTATUS_FILE);
}
}
if (operation_flag != SCEP_OPERATION_ENROLL)
goto not_enroll;
read_request();
scep_t.transaction_id = key_fingerprint(request);
if (v_flag) {
printf("%s: Read request with transaction id: %s\n", pname, scep_t.transaction_id);
}
if (! O_flag) {
if (v_flag)
fprintf(stdout, "%s: generating selfsigned certificate\n", pname);
new_selfsigned(&scep_t);
}
else {
/* Use existing certificate */
scep_t.signercert = renewal_cert;