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Support module names in %smartcard specifier, streamlined smartcard building

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This commit is contained in:
Martin Willi
2010-08-04 09:26:20 +02:00
parent 36c852a08b
commit 3479c27931
5 changed files with 95 additions and 26 deletions
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src/libcharon/plugins/stroke/stroke_cred.c
+51 -12
View File
@@ -929,9 +929,14 @@ static void load_secrets(private_stroke_cred_t *this, char *file, int level,
else if (match("PIN", &token))
{
chunk_t sc = chunk_empty, secret = chunk_empty;
char smartcard[32], keyid[22], pin[32];
char smartcard[64], keyid[64], pin[64], module[64], *pos;
private_key_t *key;
u_int slot;
enum {
SC_FORMAT_SLOT_MODULE_KEYID,
SC_FORMAT_SLOT_KEYID,
SC_FORMAT_KEYID,
} format;
err_t ugh = extract_value(&sc, &line);
@@ -948,16 +953,31 @@ static void load_secrets(private_stroke_cred_t *this, char *file, int level,
snprintf(smartcard, sizeof(smartcard), "%.*s", sc.len, sc.ptr);
smartcard[sizeof(smartcard) - 1] = '\0';
/* parse slot and key id. only two formats are supported.
* first try %smartcard<slot>:<keyid> */
if (sscanf(smartcard, "%%smartcard%u:%s", &slot, keyid) == 2)
/* parse slot and key id. Three formats are supported:
* - %smartcard<slot>@<module>:<keyid>
* - %smartcard<slot>:<keyid>
* - %smartcard:<keyid>
*/
if (sscanf(smartcard, "%%smartcard%u@%s", &slot, module) == 2)
{
snprintf(smartcard, sizeof(smartcard), "%u:%s", slot, keyid);
pos = strchr(module, ':');
if (!pos)
{
DBG1(DBG_CFG, "line %d: the given %%smartcard specifier is "
"invalid", line_nr);
goto error;
}
*pos = '\0';
strcpy(keyid, pos + 1);
format = SC_FORMAT_SLOT_MODULE_KEYID;
}
else if (sscanf(smartcard, "%%smartcard%u:%s", &slot, keyid) == 2)
{
format = SC_FORMAT_SLOT_KEYID;
}
/* then try %smartcard:<keyid> */
else if (sscanf(smartcard, "%%smartcard:%s", keyid) == 1)
{
snprintf(smartcard, sizeof(smartcard), "%s", keyid);
format = SC_FORMAT_KEYID;
}
else
{
@@ -980,11 +1000,30 @@ static void load_secrets(private_stroke_cred_t *this, char *file, int level,
snprintf(pin, sizeof(pin), "%.*s", secret.len, secret.ptr);
pin[sizeof(pin) - 1] = '\0';
/* we assume an RSA key */
key = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, KEY_RSA,
BUILD_SMARTCARD_KEYID, smartcard,
BUILD_SMARTCARD_PIN, pin, BUILD_END);
switch (format)
{
case SC_FORMAT_SLOT_MODULE_KEYID:
key = lib->creds->create(lib->creds,
CRED_PRIVATE_KEY, KEY_ANY,
BUILD_PKCS11_SLOT, slot,
BUILD_PKCS11_MODULE, module,
BUILD_PKCS11_KEYID, keyid,
BUILD_PKCS11_PIN, pin, BUILD_END);
break;
case SC_FORMAT_SLOT_KEYID:
key = lib->creds->create(lib->creds,
CRED_PRIVATE_KEY, KEY_ANY,
BUILD_PKCS11_SLOT, slot,
BUILD_PKCS11_KEYID, keyid,
BUILD_PKCS11_PIN, pin, BUILD_END);
break;
case SC_FORMAT_KEYID:
key = lib->creds->create(lib->creds,
CRED_PRIVATE_KEY, KEY_ANY,
BUILD_PKCS11_KEYID, keyid,
BUILD_PKCS11_PIN, pin, BUILD_END);
break;
}
if (key)
{
DBG1(DBG_CFG, " loaded private key from %.*s", sc.len, sc.ptr);
src/libstrongswan/credentials/builder.c
+4 -2
View File
@@ -45,8 +45,10 @@ ENUM(builder_part_names, BUILD_FROM_FILE, BUILD_END,
"BUILD_PATHLEN",
"BUILD_X509_FLAG",
"BUILD_REVOKED_ENUMERATOR",
"BUILD_SMARTCARD_KEYID",
"BUILD_SMARTCARD_PIN",
"BUILD_PKCS11_MODULE",
"BUILD_PKCS11_SLOT",
"BUILD_PKCS11_KEYID",
"BUILD_PKCS11_PIN",
"BUILD_RSA_MODULUS",
"BUILD_RSA_PUB_EXP",
"BUILD_RSA_PRIV_EXP",
src/libstrongswan/credentials/builder.h
+8 -4
View File
@@ -103,10 +103,14 @@ enum builder_part_t {
BUILD_X509_FLAG,
/** enumerator_t over (chunk_t serial, time_t date, crl_reason_t reason) */
BUILD_REVOKED_ENUMERATOR,
/** key ID of a key on a smartcard, null terminated char* ([slot:]keyid) */
BUILD_SMARTCARD_KEYID,
/** pin to access a key on a smartcard, null terminated char* */
BUILD_SMARTCARD_PIN,
/** friendly name of a PKCS#11 module, null terminated char* */
BUILD_PKCS11_MODULE,
/** slot specifier for a token in a PKCS#11 module, int */
BUILD_PKCS11_SLOT,
/** key ID of a key on a token, null terminated char* */
BUILD_PKCS11_KEYID,
/** pin to access a token, null terminated char* */
BUILD_PKCS11_PIN,
/** modulus (n) of a RSA key, chunk_t */
BUILD_RSA_MODULUS,
/** public exponent (e) of a RSA key, chunk_t */
src/libstrongswan/plugins/openssl/openssl_plugin.c
+1 -1
View File
@@ -318,7 +318,7 @@ plugin_t *openssl_plugin_create()
(builder_function_t)openssl_rsa_private_key_load);
lib->creds->add_builder(lib->creds, CRED_PRIVATE_KEY, KEY_RSA,
(builder_function_t)openssl_rsa_private_key_gen);
lib->creds->add_builder(lib->creds, CRED_PRIVATE_KEY, KEY_RSA,
lib->creds->add_builder(lib->creds, CRED_PRIVATE_KEY, KEY_ANY,
(builder_function_t)openssl_rsa_private_key_connect);
lib->creds->add_builder(lib->creds, CRED_PUBLIC_KEY, KEY_RSA,
(builder_function_t)openssl_rsa_public_key_load);
src/libstrongswan/plugins/openssl/openssl_rsa_private_key.c
+31 -7
View File
@@ -451,21 +451,28 @@ openssl_rsa_private_key_t *openssl_rsa_private_key_connect(key_type_t type,
{
#ifndef OPENSSL_NO_ENGINE
private_openssl_rsa_private_key_t *this;
char *keyid = NULL, *pin = NULL;
char *keyid = NULL, *pin = NULL, *engine_id = NULL;
char keyname[64];
EVP_PKEY *key;
char *engine_id;
ENGINE *engine;
int slot = -1;
while (TRUE)
{
switch (va_arg(args, builder_part_t))
{
case BUILD_SMARTCARD_KEYID:
case BUILD_PKCS11_KEYID:
keyid = va_arg(args, char*);
continue;
case BUILD_SMARTCARD_PIN:
case BUILD_PKCS11_PIN:
pin = va_arg(args, char*);
continue;
case BUILD_PKCS11_SLOT:
slot = va_arg(args, int);
continue;
case BUILD_PKCS11_MODULE:
engine_id = va_arg(args, char*);
continue;
case BUILD_END:
break;
default:
@@ -478,8 +485,20 @@ openssl_rsa_private_key_t *openssl_rsa_private_key_connect(key_type_t type,
return NULL;
}
engine_id = lib->settings->get_str(lib->settings,
if (slot == -1)
{
snprintf(keyname, sizeof(keyname), "%s", keyid);
}
else
{
snprintf(keyname, sizeof(keyname), "%d:%s", slot, keyid);
}
if (!engine_id)
{
engine_id = lib->settings->get_str(lib->settings,
"libstrongswan.plugins.openssl.engine_id", "pkcs11");
}
engine = ENGINE_by_id(engine_id);
if (!engine)
{
@@ -499,11 +518,11 @@ openssl_rsa_private_key_t *openssl_rsa_private_key_connect(key_type_t type,
return NULL;
}
key = ENGINE_load_private_key(engine, keyid, NULL, NULL);
key = ENGINE_load_private_key(engine, keyname, NULL, NULL);
if (!key)
{
DBG1(DBG_LIB, "failed to load private key with ID '%s' from "
"engine '%s'", keyid, engine_id);
"engine '%s'", keyname, engine_id);
ENGINE_free(engine);
return NULL;
}
@@ -512,6 +531,11 @@ openssl_rsa_private_key_t *openssl_rsa_private_key_connect(key_type_t type,
this = create_empty();
this->rsa = EVP_PKEY_get1_RSA(key);
this->engine = TRUE;
if (!this->rsa)
{
destroy(this);
return NULL;
}
return &this->public;
#else /* OPENSSL_NO_ENGINE */