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if (!si)
goto end;
if (kparam) {
EVP_PKEY_CTX *pctx;
pctx = CMS_SignerInfo_get0_pkey_ctx(si);
if (!cms_set_pkey_param(pctx, kparam->param))
goto end;
}
if (rr && !CMS_add1_ReceiptRequest(si, rr))
goto end;
X509_free(signer);
signer = NULL;
EVP_PKEY_free(key);
key = NULL;
}
/* If not streaming or resigning finalize structure */
if ((operation == SMIME_SIGN) && !(flags & CMS_STREAM)) {
if (!CMS_final(cms, in, NULL, flags))
goto end;
}
}
if (!cms) {
BIO_printf(bio_err, "Error creating CMS structure\n");
goto end;
}
ret = 4;
if (operation == SMIME_DECRYPT) {
if (flags & CMS_DEBUG_DECRYPT)
CMS_decrypt(cms, NULL, NULL, NULL, NULL, flags);
if (secret_key) {
if (!CMS_decrypt_set1_key(cms,
secret_key, secret_keylen,
secret_keyid, secret_keyidlen)) {
BIO_puts(bio_err, "Error decrypting CMS using secret key\n");
goto end;
}
}
if (key) {
if (!CMS_decrypt_set1_pkey(cms, key, recip)) {
BIO_puts(bio_err, "Error decrypting CMS using private key\n");
goto end;
}
}
if (pwri_pass) {
if (!CMS_decrypt_set1_password(cms, pwri_pass, -1)) {
BIO_puts(bio_err, "Error decrypting CMS using password\n");
goto end;
}
}
if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags)) {
BIO_printf(bio_err, "Error decrypting CMS structure\n");
goto end;
}
} else if (operation == SMIME_DATAOUT) {
if (!CMS_data(cms, out, flags))
goto end;
} else if (operation == SMIME_UNCOMPRESS) {
if (!CMS_uncompress(cms, indata, out, flags))
goto end;
} else if (operation == SMIME_DIGEST_VERIFY) {
if (CMS_digest_verify(cms, indata, out, flags) > 0)
BIO_printf(bio_err, "Verification successful\n");
else {
BIO_printf(bio_err, "Verification failure\n");
goto end;
}
} else if (operation == SMIME_ENCRYPTED_DECRYPT) {
if (!CMS_EncryptedData_decrypt(cms, secret_key, secret_keylen,
indata, out, flags))
goto end;
} else if (operation == SMIME_VERIFY) {
if (CMS_verify(cms, other, store, indata, out, flags) > 0)
BIO_printf(bio_err, "Verification successful\n");
else {
BIO_printf(bio_err, "Verification failure\n");
if (verify_retcode)
ret = verify_err + 32;
goto end;
}
if (signerfile) {
STACK_OF(X509) *signers;
signers = CMS_get0_signers(cms);
if (!save_certs(signerfile, signers)) {
BIO_printf(bio_err,
"Error writing signers to %s\n", signerfile);
ret = 5;
goto end;
}
sk_X509_free(signers);
}
if (rr_print)
receipt_request_print(bio_err, cms);
} else if (operation == SMIME_VERIFY_RECEIPT) {
if (CMS_verify_receipt(rcms, cms, other, store, flags) > 0)
BIO_printf(bio_err, "Verification successful\n");
else {
BIO_printf(bio_err, "Verification failure\n");
goto end;
}
} else {
if (noout) {
if (print)
CMS_ContentInfo_print_ctx(out, cms, 0, NULL);
} else if (outformat == FORMAT_SMIME) {
if (to)
BIO_printf(out, "To: %s\n", to);
if (from)
BIO_printf(out, "From: %s\n", from);
if (subject)
BIO_printf(out, "Subject: %s\n", subject);
if (operation == SMIME_RESIGN)
ret = SMIME_write_CMS(out, cms, indata, flags);
else
ret = SMIME_write_CMS(out, cms, in, flags);
} else if (outformat == FORMAT_PEM)
ret = PEM_write_bio_CMS_stream(out, cms, in, flags);
else if (outformat == FORMAT_ASN1)
ret = i2d_CMS_bio_stream(out, cms, in, flags);
else {
BIO_printf(bio_err, "Bad output format for CMS file\n");
goto end;
}
if (ret <= 0) {
ret = 6;
goto end;
}
}
ret = 0;
end:
if (ret)
ERR_print_errors(bio_err);
if (need_rand)
app_RAND_write_file(NULL, bio_err);
sk_X509_pop_free(encerts, X509_free);
sk_X509_pop_free(other, X509_free);
if (vpm)
X509_VERIFY_PARAM_free(vpm);
if (sksigners)
sk_OPENSSL_STRING_free(sksigners);
if (skkeys)
sk_OPENSSL_STRING_free(skkeys);
if (secret_key)
OPENSSL_free(secret_key);
if (secret_keyid)
OPENSSL_free(secret_keyid);
if (pwri_tmp)
OPENSSL_free(pwri_tmp);
if (econtent_type)
ASN1_OBJECT_free(econtent_type);
if (rr)
CMS_ReceiptRequest_free(rr);
if (rr_to)
sk_OPENSSL_STRING_free(rr_to);
if (rr_from)
sk_OPENSSL_STRING_free(rr_from);
for (key_param = key_first; key_param;) {
cms_key_param *tparam;
sk_OPENSSL_STRING_free(key_param->param);
tparam = key_param->next;
OPENSSL_free(key_param);
key_param = tparam;
}
X509_STORE_free(store);
X509_free(cert);
X509_free(recip);
X509_free(signer);
EVP_PKEY_free(key);
CMS_ContentInfo_free(cms);
CMS_ContentInfo_free(rcms);
BIO_free(rctin);
BIO_free(in);
BIO_free(indata);
BIO_free_all(out);
if (passin)
OPENSSL_free(passin);
return (ret);
}
static int save_certs(char *signerfile, STACK_OF(X509) *signers)
{
int i;
BIO *tmp;
if (!signerfile)
return 1;
tmp = BIO_new_file(signerfile, "w");
if (!tmp)
return 0;
for (i = 0; i < sk_X509_num(signers); i++)
PEM_write_bio_X509(tmp, sk_X509_value(signers, i));
BIO_free(tmp);
return 1;
}
/* Minimal callback just to output policy info (if any) */
static int cms_cb(int ok, X509_STORE_CTX *ctx)
error = X509_STORE_CTX_get_error(ctx);
if ((error != X509_V_ERR_NO_EXPLICIT_POLICY)
&& ((error != X509_V_OK) || (ok != 2)))
return ok;
static void gnames_stack_print(BIO *out, STACK_OF(GENERAL_NAMES) *gns)
{
STACK_OF(GENERAL_NAME) *gens;
GENERAL_NAME *gen;
int i, j;
for (i = 0; i < sk_GENERAL_NAMES_num(gns); i++) {
gens = sk_GENERAL_NAMES_value(gns, i);
for (j = 0; j < sk_GENERAL_NAME_num(gens); j++) {
gen = sk_GENERAL_NAME_value(gens, j);
BIO_puts(out, " ");
GENERAL_NAME_print(out, gen);
BIO_puts(out, "\n");
}
}
return;
}
static void receipt_request_print(BIO *out, CMS_ContentInfo *cms)
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{
STACK_OF(CMS_SignerInfo) *sis;
CMS_SignerInfo *si;
CMS_ReceiptRequest *rr;
int allorfirst;
STACK_OF(GENERAL_NAMES) *rto, *rlist;
ASN1_STRING *scid;
int i, rv;
sis = CMS_get0_SignerInfos(cms);
for (i = 0; i < sk_CMS_SignerInfo_num(sis); i++) {
si = sk_CMS_SignerInfo_value(sis, i);
rv = CMS_get1_ReceiptRequest(si, &rr);
BIO_printf(bio_err, "Signer %d:\n", i + 1);
if (rv == 0)
BIO_puts(bio_err, " No Receipt Request\n");
else if (rv < 0) {
BIO_puts(bio_err, " Receipt Request Parse Error\n");
ERR_print_errors(bio_err);
} else {
char *id;
int idlen;
CMS_ReceiptRequest_get0_values(rr, &scid, &allorfirst,
&rlist, &rto);
BIO_puts(out, " Signed Content ID:\n");
idlen = ASN1_STRING_length(scid);
id = (char *)ASN1_STRING_data(scid);
BIO_dump_indent(out, id, idlen, 4);
BIO_puts(out, " Receipts From");
if (rlist) {
BIO_puts(out, " List:\n");
gnames_stack_print(out, rlist);
} else if (allorfirst == 1)
BIO_puts(out, ": First Tier\n");
else if (allorfirst == 0)
BIO_puts(out, ": All\n");
else
BIO_printf(out, " Unknown (%d)\n", allorfirst);
BIO_puts(out, " Receipts To:\n");
gnames_stack_print(out, rto);
}
if (rr)
CMS_ReceiptRequest_free(rr);
}
}
static STACK_OF(GENERAL_NAMES) *make_names_stack(STACK_OF(OPENSSL_STRING) *ns)
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{
int i;
STACK_OF(GENERAL_NAMES) *ret;
GENERAL_NAMES *gens = NULL;
GENERAL_NAME *gen = NULL;
ret = sk_GENERAL_NAMES_new_null();
if (!ret)
goto err;
for (i = 0; i < sk_OPENSSL_STRING_num(ns); i++) {
char *str = sk_OPENSSL_STRING_value(ns, i);
gen = a2i_GENERAL_NAME(NULL, NULL, NULL, GEN_EMAIL, str, 0);
if (!gen)
goto err;
gens = GENERAL_NAMES_new();
if (!gens)
goto err;
if (!sk_GENERAL_NAME_push(gens, gen))
goto err;
gen = NULL;
if (!sk_GENERAL_NAMES_push(ret, gens))
goto err;
gens = NULL;
}
return ret;
err:
if (ret)
sk_GENERAL_NAMES_pop_free(ret, GENERAL_NAMES_free);
if (gens)
GENERAL_NAMES_free(gens);
if (gen)
GENERAL_NAME_free(gen);
return NULL;
}
static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING)
*rr_to, int rr_allorfirst, STACK_OF(OPENSSL_STRING)
*rr_from)
{
STACK_OF(GENERAL_NAMES) *rct_to, *rct_from;
CMS_ReceiptRequest *rr;
rct_to = make_names_stack(rr_to);
if (!rct_to)
goto err;
if (rr_from) {
rct_from = make_names_stack(rr_from);
if (!rct_from)
goto err;
} else
rct_from = NULL;
rr = CMS_ReceiptRequest_create0(NULL, -1, rr_allorfirst, rct_from,
rct_to);
return rr;
err:
return NULL;
}
static int cms_set_pkey_param(EVP_PKEY_CTX *pctx,
STACK_OF(OPENSSL_STRING) *param)
{
char *keyopt;
int i;
if (sk_OPENSSL_STRING_num(param) <= 0)
return 1;
for (i = 0; i < sk_OPENSSL_STRING_num(param); i++) {
keyopt = sk_OPENSSL_STRING_value(param, i);
if (pkey_ctrl_string(pctx, keyopt) <= 0) {
BIO_printf(bio_err, "parameter error \"%s\"\n", keyopt);
ERR_print_errors(bio_err);
return 0;
}
}
return 1;
}