#include <fcntl.h>
#include "ask-password-api.h"
+#include "dlfcn-util.h"
+#include "env-util.h"
#include "escape.h"
#include "fd-util.h"
#include "format-table.h"
#if HAVE_P11KIT
+static void *p11kit_dl = NULL;
+
+char *(*sym_p11_kit_module_get_name)(CK_FUNCTION_LIST *module);
+void (*sym_p11_kit_modules_finalize_and_release)(CK_FUNCTION_LIST **modules);
+CK_FUNCTION_LIST **(*sym_p11_kit_modules_load_and_initialize)(int flags);
+const char *(*sym_p11_kit_strerror)(CK_RV rv);
+int (*sym_p11_kit_uri_format)(P11KitUri *uri, P11KitUriType uri_type, char **string);
+void (*sym_p11_kit_uri_free)(P11KitUri *uri);
+CK_ATTRIBUTE_PTR (*sym_p11_kit_uri_get_attributes)(P11KitUri *uri, CK_ULONG *n_attrs);
+CK_INFO_PTR (*sym_p11_kit_uri_get_module_info)(P11KitUri *uri);
+CK_SLOT_INFO_PTR (*sym_p11_kit_uri_get_slot_info)(P11KitUri *uri);
+CK_TOKEN_INFO_PTR (*sym_p11_kit_uri_get_token_info)(P11KitUri *uri);
+int (*sym_p11_kit_uri_match_token_info)(const P11KitUri *uri, const CK_TOKEN_INFO *token_info);
+const char *(*sym_p11_kit_uri_message)(int code);
+P11KitUri *(*sym_p11_kit_uri_new)(void);
+int (*sym_p11_kit_uri_parse)(const char *string, P11KitUriType uri_type, P11KitUri *uri);
+
+int dlopen_p11kit(void) {
+ return dlopen_many_sym_or_warn(
+ &p11kit_dl,
+ "libp11-kit.so.0", LOG_DEBUG,
+ DLSYM_ARG(p11_kit_module_get_name),
+ DLSYM_ARG(p11_kit_modules_finalize_and_release),
+ DLSYM_ARG(p11_kit_modules_load_and_initialize),
+ DLSYM_ARG(p11_kit_strerror),
+ DLSYM_ARG(p11_kit_uri_format),
+ DLSYM_ARG(p11_kit_uri_free),
+ DLSYM_ARG(p11_kit_uri_get_attributes),
+ DLSYM_ARG(p11_kit_uri_get_module_info),
+ DLSYM_ARG(p11_kit_uri_get_slot_info),
+ DLSYM_ARG(p11_kit_uri_get_token_info),
+ DLSYM_ARG(p11_kit_uri_match_token_info),
+ DLSYM_ARG(p11_kit_uri_message),
+ DLSYM_ARG(p11_kit_uri_new),
+ DLSYM_ARG(p11_kit_uri_parse));
+}
+
int uri_from_string(const char *p, P11KitUri **ret) {
- _cleanup_(p11_kit_uri_freep) P11KitUri *uri = NULL;
+ _cleanup_(sym_p11_kit_uri_freep) P11KitUri *uri = NULL;
+ int r;
assert(p);
assert(ret);
- uri = p11_kit_uri_new();
+ r = dlopen_p11kit();
+ if (r < 0)
+ return r;
+
+ uri = sym_p11_kit_uri_new();
if (!uri)
return -ENOMEM;
- if (p11_kit_uri_parse(p, P11_KIT_URI_FOR_ANY, uri) != P11_KIT_URI_OK)
+ if (sym_p11_kit_uri_parse(p, P11_KIT_URI_FOR_ANY, uri) != P11_KIT_URI_OK)
return -EINVAL;
*ret = TAKE_PTR(uri);
assert(info);
- uri = p11_kit_uri_new();
+ if (dlopen_p11kit() < 0)
+ return NULL;
+
+ uri = sym_p11_kit_uri_new();
if (!uri)
return NULL;
- *p11_kit_uri_get_module_info(uri) = *info;
+ *sym_p11_kit_uri_get_module_info(uri) = *info;
return uri;
}
assert(slot_info);
- uri = p11_kit_uri_new();
+ if (dlopen_p11kit() < 0)
+ return NULL;
+
+ uri = sym_p11_kit_uri_new();
if (!uri)
return NULL;
- *p11_kit_uri_get_slot_info(uri) = *slot_info;
+ *sym_p11_kit_uri_get_slot_info(uri) = *slot_info;
return uri;
}
assert(token_info);
- uri = p11_kit_uri_new();
+ if (dlopen_p11kit() < 0)
+ return NULL;
+
+ uri = sym_p11_kit_uri_new();
if (!uri)
return NULL;
- *p11_kit_uri_get_token_info(uri) = *token_info;
+ *sym_p11_kit_uri_get_token_info(uri) = *token_info;
return uri;
}
return t;
}
+int pkcs11_token_login_by_pin(
+ CK_FUNCTION_LIST *m,
+ CK_SESSION_HANDLE session,
+ const CK_TOKEN_INFO *token_info,
+ const char *token_label,
+ const void *pin,
+ size_t pin_size) {
+
+ CK_RV rv;
+ int r;
+
+ assert(m);
+ assert(token_info);
+
+ r = dlopen_p11kit();
+ if (r < 0)
+ return r;
+
+ if (FLAGS_SET(token_info->flags, CKF_PROTECTED_AUTHENTICATION_PATH)) {
+ rv = m->C_Login(session, CKU_USER, NULL, 0);
+ if (rv != CKR_OK)
+ return log_error_errno(SYNTHETIC_ERRNO(EIO),
+ "Failed to log into security token '%s': %s", token_label, sym_p11_kit_strerror(rv));
+
+ log_info("Successfully logged into security token '%s' via protected authentication path.", token_label);
+ return 0;
+ }
+
+ if (!FLAGS_SET(token_info->flags, CKF_LOGIN_REQUIRED)) {
+ log_info("No login into security token '%s' required.", token_label);
+ return 0;
+ }
+
+ if (!pin)
+ return -ENOANO;
+
+ rv = m->C_Login(session, CKU_USER, (CK_UTF8CHAR*) pin, pin_size);
+ if (rv == CKR_OK) {
+ log_info("Successfully logged into security token '%s'.", token_label);
+ return 0;
+ }
+
+ if (rv == CKR_PIN_LOCKED)
+ return log_error_errno(SYNTHETIC_ERRNO(EPERM),
+ "PIN has been locked, please reset PIN of security token '%s'.", token_label);
+ if (!IN_SET(rv, CKR_PIN_INCORRECT, CKR_PIN_LEN_RANGE))
+ return log_error_errno(SYNTHETIC_ERRNO(EIO),
+ "Failed to log into security token '%s': %s", token_label, sym_p11_kit_strerror(rv));
+
+ return log_notice_errno(SYNTHETIC_ERRNO(ENOLCK),
+ "PIN for token '%s' is incorrect, please try again.",
+ token_label);
+}
+
int pkcs11_token_login(
CK_FUNCTION_LIST *m,
CK_SESSION_HANDLE session,
const char *key_name,
const char *credential_name,
usec_t until,
+ AskPasswordFlags ask_password_flags,
bool headless,
char **ret_used_pin) {
_cleanup_free_ char *token_uri_string = NULL, *token_uri_escaped = NULL, *id = NULL, *token_label = NULL;
- _cleanup_(p11_kit_uri_freep) P11KitUri *token_uri = NULL;
+ _cleanup_(sym_p11_kit_uri_freep) P11KitUri *token_uri = NULL;
CK_TOKEN_INFO updated_token_info;
int uri_result, r;
CK_RV rv;
assert(m);
assert(token_info);
+ r = dlopen_p11kit();
+ if (r < 0)
+ return r;
+
token_label = pkcs11_token_label(token_info);
if (!token_label)
return log_oom();
if (!token_uri)
return log_oom();
- uri_result = p11_kit_uri_format(token_uri, P11_KIT_URI_FOR_ANY, &token_uri_string);
+ uri_result = sym_p11_kit_uri_format(token_uri, P11_KIT_URI_FOR_ANY, &token_uri_string);
if (uri_result != P11_KIT_URI_OK)
- return log_warning_errno(SYNTHETIC_ERRNO(EAGAIN), "Failed to format slot URI: %s", p11_kit_uri_message(uri_result));
-
- if (FLAGS_SET(token_info->flags, CKF_PROTECTED_AUTHENTICATION_PATH)) {
- rv = m->C_Login(session, CKU_USER, NULL, 0);
- if (rv != CKR_OK)
- return log_error_errno(SYNTHETIC_ERRNO(EIO),
- "Failed to log into security token '%s': %s", token_label, p11_kit_strerror(rv));
+ return log_warning_errno(SYNTHETIC_ERRNO(EAGAIN), "Failed to format slot URI: %s", sym_p11_kit_uri_message(uri_result));
- log_info("Successfully logged into security token '%s' via protected authentication path.", token_label);
- if (ret_used_pin)
- *ret_used_pin = NULL;
- return 0;
- }
+ r = pkcs11_token_login_by_pin(m, session, token_info, token_label, /* pin= */ NULL, 0);
+ if (r == 0 && ret_used_pin)
+ *ret_used_pin = NULL;
- if (!FLAGS_SET(token_info->flags, CKF_LOGIN_REQUIRED)) {
- log_info("No login into security token '%s' required.", token_label);
- if (ret_used_pin)
- *ret_used_pin = NULL;
- return 0;
- }
+ if (r != -ENOANO) /* pin required */
+ return r;
token_uri_escaped = cescape(token_uri_string);
if (!token_uri_escaped)
for (unsigned tries = 0; tries < 3; tries++) {
_cleanup_strv_free_erase_ char **passwords = NULL;
- char **i, *e;
+ _cleanup_(erase_and_freep) char *envpin = NULL;
- e = getenv("PIN");
- if (e) {
- passwords = strv_new(e);
+ r = getenv_steal_erase("PIN", &envpin);
+ if (r < 0)
+ return log_error_errno(r, "Failed to acquire PIN from environment: %m");
+ if (r > 0) {
+ passwords = strv_new(envpin);
if (!passwords)
return log_oom();
- string_erase(e);
- if (unsetenv("PIN") < 0)
- return log_error_errno(errno, "Failed to unset $PIN: %m");
} else if (headless)
return log_error_errno(SYNTHETIC_ERRNO(ENOPKG), "PIN querying disabled via 'headless' option. Use the 'PIN' environment variable.");
else {
return log_oom();
/* We never cache PINs, simply because it's fatal if we use wrong PINs, since usually there are only 3 tries */
- r = ask_password_auto(text, icon_name, id, key_name, credential_name, until, 0, &passwords);
+ r = ask_password_auto(text, icon_name, id, key_name, credential_name, until, ask_password_flags, &passwords);
if (r < 0)
return log_error_errno(r, "Failed to query PIN for security token '%s': %m", token_label);
}
STRV_FOREACH(i, passwords) {
- rv = m->C_Login(session, CKU_USER, (CK_UTF8CHAR*) *i, strlen(*i));
- if (rv == CKR_OK) {
-
- if (ret_used_pin) {
- char *c;
-
- c = strdup(*i);
- if (!c)
- return log_oom();
+ r = pkcs11_token_login_by_pin(m, session, token_info, token_label, *i, strlen(*i));
+ if (r == 0 && ret_used_pin) {
+ char *c;
- *ret_used_pin = c;
- }
+ c = strdup(*i);
+ if (!c)
+ return log_oom();
- log_info("Successfully logged into security token '%s'.", token_label);
- return 0;
+ *ret_used_pin = c;
}
- if (rv == CKR_PIN_LOCKED)
- return log_error_errno(SYNTHETIC_ERRNO(EPERM),
- "PIN has been locked, please reset PIN of security token '%s'.", token_label);
- if (!IN_SET(rv, CKR_PIN_INCORRECT, CKR_PIN_LEN_RANGE))
- return log_error_errno(SYNTHETIC_ERRNO(EIO),
- "Failed to log into security token '%s': %s", token_label, p11_kit_strerror(rv));
- /* Referesh the token info, so that we can prompt knowing the new flags if they changed. */
+ if (r != -ENOLCK)
+ return r;
+
+ /* Refresh the token info, so that we can prompt knowing the new flags if they changed. */
rv = m->C_GetTokenInfo(slotid, &updated_token_info);
if (rv != CKR_OK)
return log_error_errno(SYNTHETIC_ERRNO(EIO),
"Failed to acquire updated security token information for slot %lu: %s",
- slotid, p11_kit_strerror(rv));
+ slotid, sym_p11_kit_strerror(rv));
token_info = &updated_token_info;
- log_notice("PIN for token '%s' is incorrect, please try again.", token_label);
}
}
CK_ATTRIBUTE *attributes = NULL;
CK_OBJECT_HANDLE objects[2];
CK_RV rv, rv2;
+ int r;
assert(m);
assert(search_uri);
assert(ret_object);
- attributes = p11_kit_uri_get_attributes(search_uri, &n_attributes);
+ r = dlopen_p11kit();
+ if (r < 0)
+ return r;
+
+ attributes = sym_p11_kit_uri_get_attributes(search_uri, &n_attributes);
for (a = 0; a < n_attributes; a++) {
/* We use the URI's included match attributes, but make them more strict. This allows users
rv = m->C_FindObjectsInit(session, attributes, n_attributes);
if (rv != CKR_OK)
return log_error_errno(SYNTHETIC_ERRNO(EIO),
- "Failed to initialize object find call: %s", p11_kit_strerror(rv));
+ "Failed to initialize object find call: %s", sym_p11_kit_strerror(rv));
rv = m->C_FindObjects(session, objects, ELEMENTSOF(objects), &n_objects);
rv2 = m->C_FindObjectsFinal(session);
if (rv != CKR_OK)
return log_error_errno(SYNTHETIC_ERRNO(EIO),
- "Failed to find objects: %s", p11_kit_strerror(rv));
+ "Failed to find objects: %s", sym_p11_kit_strerror(rv));
if (rv2 != CKR_OK)
return log_error_errno(SYNTHETIC_ERRNO(EIO),
- "Failed to finalize object find call: %s", p11_kit_strerror(rv));
+ "Failed to finalize object find call: %s", sym_p11_kit_strerror(rv));
if (n_objects == 0)
return log_error_errno(SYNTHETIC_ERRNO(ENOENT),
"Failed to find selected X509 certificate on token.");
_cleanup_(X509_freep) X509 *x509 = NULL;
X509_NAME *name = NULL;
const unsigned char *p;
+ int r;
+
+ r = dlopen_p11kit();
+ if (r < 0)
+ return r;
rv = m->C_GetAttributeValue(session, object, &attribute, 1);
if (rv != CKR_OK)
return log_error_errno(SYNTHETIC_ERRNO(EIO),
- "Failed to read X.509 certificate size off token: %s", p11_kit_strerror(rv));
+ "Failed to read X.509 certificate size off token: %s", sym_p11_kit_strerror(rv));
buffer = malloc(attribute.ulValueLen);
if (!buffer)
rv = m->C_GetAttributeValue(session, object, &attribute, 1);
if (rv != CKR_OK)
return log_error_errno(SYNTHETIC_ERRNO(EIO),
- "Failed to read X.509 certificate data off token: %s", p11_kit_strerror(rv));
+ "Failed to read X.509 certificate data off token: %s", sym_p11_kit_strerror(rv));
p = attribute.pValue;
x509 = d2i_X509(NULL, &p, attribute.ulValueLen);
P11KitUri *search_uri,
CK_OBJECT_HANDLE *ret_object) {
- bool found_decrypt = false, found_class = false, found_key_type = false;
+ uint_fast8_t n_objects = 0;
+ bool found_class = false;
_cleanup_free_ CK_ATTRIBUTE *attributes_buffer = NULL;
- CK_ULONG n_attributes, a, n_objects;
- CK_ATTRIBUTE *attributes = NULL;
- CK_OBJECT_HANDLE objects[2];
- CK_RV rv, rv2;
+ CK_OBJECT_HANDLE object, candidate;
+ static const CK_OBJECT_CLASS class = CKO_PRIVATE_KEY;
+ CK_BBOOL decrypt_value, derive_value;
+ CK_ATTRIBUTE optional_attributes[] = {
+ { CKA_DECRYPT, &decrypt_value, sizeof(decrypt_value) },
+ { CKA_DERIVE, &derive_value, sizeof(derive_value) }
+ };
+ CK_RV rv;
assert(m);
assert(search_uri);
assert(ret_object);
- attributes = p11_kit_uri_get_attributes(search_uri, &n_attributes);
- for (a = 0; a < n_attributes; a++) {
+ CK_ULONG n_attributes;
+ CK_ATTRIBUTE *attributes = sym_p11_kit_uri_get_attributes(search_uri, &n_attributes);
+ for (CK_ULONG i = 0; i < n_attributes; i++) {
/* We use the URI's included match attributes, but make them more strict. This allows users
* to specify a token URL instead of an object URL and the right thing should happen if
* there's only one suitable key on the token. */
- switch (attributes[a].type) {
-
+ switch (attributes[i].type) {
case CKA_CLASS: {
CK_OBJECT_CLASS c;
- if (attributes[a].ulValueLen != sizeof(c))
+ if (attributes[i].ulValueLen != sizeof(c))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid PKCS#11 CKA_CLASS attribute size.");
- memcpy(&c, attributes[a].pValue, sizeof(c));
+ memcpy(&c, attributes[i].pValue, sizeof(c));
if (c != CKO_PRIVATE_KEY)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
"Selected PKCS#11 object is not a private key, refusing.");
found_class = true;
break;
- }
+ }}
+ }
- case CKA_DECRYPT: {
- CK_BBOOL b;
+ if (!found_class) {
+ /* Hmm, let's slightly extend the attribute list we search for */
- if (attributes[a].ulValueLen != sizeof(b))
- return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid PKCS#11 CKA_DECRYPT attribute size.");
+ attributes_buffer = new(CK_ATTRIBUTE, n_attributes + 1);
+ if (!attributes_buffer)
+ return log_oom();
- memcpy(&b, attributes[a].pValue, sizeof(b));
- if (!b)
- return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
- "Selected PKCS#11 object is not suitable for decryption, refusing.");
+ memcpy(attributes_buffer, attributes, sizeof(CK_ATTRIBUTE) * n_attributes);
+
+ attributes_buffer[n_attributes++] = (CK_ATTRIBUTE) {
+ .type = CKA_CLASS,
+ .pValue = (CK_OBJECT_CLASS*) &class,
+ .ulValueLen = sizeof(class),
+ };
+
+ attributes = attributes_buffer;
+ }
+
+ rv = m->C_FindObjectsInit(session, attributes, n_attributes);
+ if (rv != CKR_OK)
+ return log_error_errno(SYNTHETIC_ERRNO(EIO),
+ "Failed to initialize object find call: %s", sym_p11_kit_strerror(rv));
- found_decrypt = true;
+ for (;;) {
+ CK_ULONG b;
+ rv = m->C_FindObjects(session, &candidate, 1, &b);
+ if (rv != CKR_OK)
+ return log_error_errno(SYNTHETIC_ERRNO(EIO),
+ "Failed to find objects: %s", sym_p11_kit_strerror(rv));
+
+ if (b == 0)
break;
+
+ bool can_decrypt = false, can_derive = false;
+ optional_attributes[0].ulValueLen = sizeof(decrypt_value);
+ optional_attributes[1].ulValueLen = sizeof(derive_value);
+
+ rv = m->C_GetAttributeValue(session, candidate, optional_attributes, ELEMENTSOF(optional_attributes));
+ if (rv != CKR_OK && rv != CKR_ATTRIBUTE_TYPE_INVALID)
+ return log_error_errno(SYNTHETIC_ERRNO(EIO),
+ "Failed to get attributes of a selected private key: %s", sym_p11_kit_strerror(rv));
+
+ if (optional_attributes[0].ulValueLen != CK_UNAVAILABLE_INFORMATION && decrypt_value == CK_TRUE)
+ can_decrypt = true;
+
+ if (optional_attributes[1].ulValueLen != CK_UNAVAILABLE_INFORMATION && derive_value == CK_TRUE)
+ can_derive = true;
+
+ if (can_decrypt || can_derive) {
+ n_objects++;
+ if (n_objects > 1)
+ break;
+ object = candidate;
}
+ }
- case CKA_KEY_TYPE: {
- CK_KEY_TYPE t;
+ rv = m->C_FindObjectsFinal(session);
+ if (rv != CKR_OK)
+ return log_error_errno(SYNTHETIC_ERRNO(EIO),
+ "Failed to finalize object find call: %s", sym_p11_kit_strerror(rv));
- if (attributes[a].ulValueLen != sizeof(t))
- return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid PKCS#11 CKA_KEY_TYPE attribute size.");
+ if (n_objects == 0)
+ return log_error_errno(SYNTHETIC_ERRNO(ENOENT),
+ "Failed to find selected private key suitable for decryption or derivation on token.");
- memcpy(&t, attributes[a].pValue, sizeof(t));
- if (t != CKK_RSA)
- return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Selected PKCS#11 object is not an RSA key, refusing.");
+ if (n_objects > 1)
+ return log_error_errno(SYNTHETIC_ERRNO(ENOTUNIQ),
+ "Configured private key URI matches multiple keys, refusing.");
- found_key_type = true;
- break;
- }}
+ *ret_object = object;
+ return 0;
+}
+
+static const char* object_class_to_string(CK_OBJECT_CLASS class) {
+ switch (class) {
+ case CKO_CERTIFICATE:
+ return "CKO_CERTIFICATE";
+ case CKO_PUBLIC_KEY:
+ return "CKO_PUBLIC_KEY";
+ case CKO_PRIVATE_KEY:
+ return "CKO_PRIVATE_KEY";
+ case CKO_SECRET_KEY:
+ return "CKO_SECRET_KEY";
+ default:
+ return NULL;
}
+}
- if (!found_decrypt || !found_class || !found_key_type) {
- /* Hmm, let's slightly extend the attribute list we search for */
+/* Returns an object with the given class and the same CKA_ID or CKA_LABEL as prototype */
+int pkcs11_token_find_related_object(
+ CK_FUNCTION_LIST *m,
+ CK_SESSION_HANDLE session,
+ CK_OBJECT_HANDLE prototype,
+ CK_OBJECT_CLASS class,
+ CK_OBJECT_HANDLE *ret_object ) {
- attributes_buffer = new(CK_ATTRIBUTE, n_attributes + !found_decrypt + !found_class + !found_key_type);
- if (!attributes_buffer)
+ _cleanup_free_ void *buffer = NULL;
+ CK_ATTRIBUTE attributes[] = {
+ { CKA_ID, NULL_PTR, 0 },
+ { CKA_LABEL, NULL_PTR, 0 }
+ };
+ CK_OBJECT_CLASS search_class = class;
+ CK_ATTRIBUTE search_attributes[2] = {
+ { CKA_CLASS, &search_class, sizeof(search_class) }
+ };
+ CK_ULONG n_objects;
+ CK_OBJECT_HANDLE objects[2];
+ CK_RV rv;
+
+ rv = m->C_GetAttributeValue(session, prototype, attributes, ELEMENTSOF(attributes));
+ if (rv != CKR_OK && rv != CKR_ATTRIBUTE_TYPE_INVALID)
+ return log_debug_errno(SYNTHETIC_ERRNO(EIO), "Failed to retrieve length of attributes: %s", sym_p11_kit_strerror(rv));
+
+ if (attributes[0].ulValueLen != CK_UNAVAILABLE_INFORMATION) {
+ buffer = malloc(attributes[0].ulValueLen);
+ if (!buffer)
return log_oom();
- memcpy(attributes_buffer, attributes, sizeof(CK_ATTRIBUTE) * n_attributes);
+ attributes[0].pValue = buffer;
+ rv = m->C_GetAttributeValue(session, prototype, &attributes[0], 1);
+ if (rv != CKR_OK)
+ return log_debug_errno(SYNTHETIC_ERRNO(EIO),
+ "Failed to retrieve CKA_ID: %s", sym_p11_kit_strerror(rv));
- if (!found_decrypt) {
- static const CK_BBOOL yes = true;
+ search_attributes[1] = attributes[0];
- attributes_buffer[n_attributes++] = (CK_ATTRIBUTE) {
- .type = CKA_DECRYPT,
- .pValue = (CK_BBOOL*) &yes,
- .ulValueLen = sizeof(yes),
- };
- }
+ } else if (attributes[1].ulValueLen != CK_UNAVAILABLE_INFORMATION) {
+ buffer = malloc(attributes[1].ulValueLen);
+ if (!buffer)
+ return log_oom();
- if (!found_class) {
- static const CK_OBJECT_CLASS class = CKO_PRIVATE_KEY;
+ attributes[1].pValue = buffer;
+ rv = m->C_GetAttributeValue(session, prototype, &attributes[1], 1);
+ if (rv != CKR_OK)
+ return log_debug_errno(SYNTHETIC_ERRNO(EIO),
+ "Failed to retrieve CKA_LABEL: %s", sym_p11_kit_strerror(rv));
- attributes_buffer[n_attributes++] = (CK_ATTRIBUTE) {
- .type = CKA_CLASS,
- .pValue = (CK_OBJECT_CLASS*) &class,
- .ulValueLen = sizeof(class),
- };
- }
+ search_attributes[1] = attributes[1];
- if (!found_key_type) {
- static const CK_KEY_TYPE type = CKK_RSA;
+ } else
+ return log_debug_errno(SYNTHETIC_ERRNO(EINVAL), "The prototype does not have CKA_ID or CKA_LABEL");
- attributes_buffer[n_attributes++] = (CK_ATTRIBUTE) {
- .type = CKA_KEY_TYPE,
- .pValue = (CK_KEY_TYPE*) &type,
- .ulValueLen = sizeof(type),
- };
- }
+ rv = m->C_FindObjectsInit(session, search_attributes, 2);
+ if (rv != CKR_OK)
+ return log_debug_errno(SYNTHETIC_ERRNO(EIO),
+ "Failed to initialize object find call: %s", sym_p11_kit_strerror(rv));
- attributes = attributes_buffer;
+ rv = m->C_FindObjects(session, objects, 2, &n_objects);
+ if (rv != CKR_OK)
+ return log_debug_errno(SYNTHETIC_ERRNO(EIO),
+ "Failed to find objects: %s", sym_p11_kit_strerror(rv));
+
+ rv = m->C_FindObjectsFinal(session);
+ if (rv != CKR_OK)
+ return log_debug_errno(SYNTHETIC_ERRNO(EIO),
+ "Failed to finalize object find call: %s", sym_p11_kit_strerror(rv));
+
+ if (n_objects == 0)
+ return log_debug_errno(SYNTHETIC_ERRNO(ENOENT),
+ "Failed to find a related object with class %s", object_class_to_string(class));
+
+ if (n_objects > 1)
+ log_warning("Found multiple related objects with class %s, using the first object.",
+ object_class_to_string(class));
+
+ *ret_object = objects[0];
+ return 0;
+}
+
+#if HAVE_OPENSSL
+static int ecc_convert_to_compressed(
+ CK_FUNCTION_LIST *m,
+ CK_SESSION_HANDLE session,
+ CK_OBJECT_HANDLE object,
+ const void *uncompressed_point,
+ size_t uncompressed_point_size,
+ void **ret_compressed_point,
+ size_t *ret_compressed_point_size) {
+
+ _cleanup_free_ void *ec_params_buffer = NULL;
+ CK_ATTRIBUTE ec_params_attr = { CKA_EC_PARAMS, NULL_PTR, 0 };
+ CK_RV rv;
+ int r;
+
+ rv = m->C_GetAttributeValue(session, object, &ec_params_attr, 1);
+ if (rv != CKR_OK && rv != CKR_ATTRIBUTE_TYPE_INVALID)
+ return log_error_errno(SYNTHETIC_ERRNO(EIO),
+ "Failed to retrieve length of CKA_EC_PARAMS: %s", sym_p11_kit_strerror(rv));
+
+ if (ec_params_attr.ulValueLen != CK_UNAVAILABLE_INFORMATION) {
+ ec_params_buffer = malloc(ec_params_attr.ulValueLen);
+ if (!ec_params_buffer)
+ return log_oom();
+
+ ec_params_attr.pValue = ec_params_buffer;
+ rv = m->C_GetAttributeValue(session, object, &ec_params_attr, 1);
+ if (rv != CKR_OK)
+ return log_error_errno(SYNTHETIC_ERRNO(EIO),
+ "Failed to retrieve CKA_EC_PARAMS from a private key: %s", sym_p11_kit_strerror(rv));
+ } else {
+ CK_OBJECT_HANDLE public_key;
+ r = pkcs11_token_find_related_object(m, session, object, CKO_PUBLIC_KEY, &public_key);
+ if (r < 0)
+ return log_error_errno(r, "Failed to find a public key for compressing a EC point");
+
+ ec_params_attr.ulValueLen = 0;
+ rv = m->C_GetAttributeValue(session, public_key, &ec_params_attr, 1);
+ if (rv != CKR_OK && rv != CKR_ATTRIBUTE_TYPE_INVALID)
+ return log_error_errno(SYNTHETIC_ERRNO(EIO),
+ "Failed to retrieve length of CKA_EC_PARAMS: %s", sym_p11_kit_strerror(rv));
+
+ if (ec_params_attr.ulValueLen == CK_UNAVAILABLE_INFORMATION)
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "The public key does not have CKA_EC_PARAMS");
+
+ ec_params_buffer = malloc(ec_params_attr.ulValueLen);
+ if (!ec_params_buffer)
+ return log_oom();
+
+ ec_params_attr.pValue = ec_params_buffer;
+ rv = m->C_GetAttributeValue(session, public_key, &ec_params_attr, 1);
+ if (rv != CKR_OK)
+ return log_error_errno(SYNTHETIC_ERRNO(EIO),
+ "Failed to retrieve CKA_EC_PARAMS from a public key: %s", sym_p11_kit_strerror(rv));
}
- rv = m->C_FindObjectsInit(session, attributes, n_attributes);
+ _cleanup_(EC_GROUP_freep) EC_GROUP *group = NULL;
+ _cleanup_(EC_POINT_freep) EC_POINT *point = NULL;
+ _cleanup_(BN_CTX_freep) BN_CTX *bnctx = NULL;
+ _cleanup_free_ void *compressed_point = NULL;
+ size_t compressed_point_size;
+
+ const unsigned char *ec_params_value = ec_params_attr.pValue;
+ group = d2i_ECPKParameters(NULL, &ec_params_value, ec_params_attr.ulValueLen);
+ if (!group)
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Unable to decode CKA_EC_PARAMS");
+
+ point = EC_POINT_new(group);
+ if (!point)
+ return log_oom();
+
+ bnctx = BN_CTX_new();
+ if (!bnctx)
+ return log_oom();
+
+ if (EC_POINT_oct2point(group, point, uncompressed_point, uncompressed_point_size, bnctx) != 1)
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Unable to decode an uncompressed EC point");
+
+ compressed_point_size = EC_POINT_point2oct(group, point, POINT_CONVERSION_COMPRESSED, NULL, 0, bnctx);
+ if (compressed_point_size == 0)
+ return log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to determine size of a compressed EC point");
+
+ compressed_point = malloc(compressed_point_size);
+ if (!compressed_point)
+ return log_oom();
+
+ compressed_point_size = EC_POINT_point2oct(group, point, POINT_CONVERSION_COMPRESSED, compressed_point, compressed_point_size, bnctx);
+ if (compressed_point_size == 0)
+ return log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to convert a EC point to compressed format");
+
+ *ret_compressed_point = TAKE_PTR(compressed_point);
+ *ret_compressed_point_size = compressed_point_size;
+ return 0;
+}
+#endif
+
+/* Since EC keys doesn't support encryption directly, we use ECDH protocol to derive shared secret here.
+ * We use PKCS#11 C_DeriveKey function to derive a shared secret with a private key stored in the token and
+ * a public key saved on enrollment. */
+static int pkcs11_token_decrypt_data_ecc(
+ CK_FUNCTION_LIST *m,
+ CK_SESSION_HANDLE session,
+ CK_OBJECT_HANDLE object,
+ const void *encrypted_data,
+ size_t encrypted_data_size,
+ void **ret_decrypted_data,
+ size_t *ret_decrypted_data_size) {
+
+ static const CK_BBOOL yes = CK_TRUE, no = CK_FALSE;
+ static const CK_OBJECT_CLASS shared_secret_class = CKO_SECRET_KEY;
+ static const CK_KEY_TYPE shared_secret_type = CKK_GENERIC_SECRET;
+ static const CK_ATTRIBUTE shared_secret_template[] = {
+ { CKA_TOKEN, (void*) &no, sizeof(no) },
+ { CKA_CLASS, (void*) &shared_secret_class, sizeof(shared_secret_class) },
+ { CKA_KEY_TYPE, (void*) &shared_secret_type, sizeof(shared_secret_type) },
+ { CKA_SENSITIVE, (void*) &no, sizeof(no) },
+ { CKA_EXTRACTABLE, (void*) &yes, sizeof(yes) }
+ };
+ CK_ECDH1_DERIVE_PARAMS params = {
+ .kdf = CKD_NULL,
+ .pPublicData = (void*) encrypted_data,
+ .ulPublicDataLen = encrypted_data_size
+ };
+ CK_MECHANISM mechanism = {
+ .mechanism = CKM_ECDH1_DERIVE,
+ .pParameter = ¶ms,
+ .ulParameterLen = sizeof(params)
+ };
+ CK_OBJECT_HANDLE shared_secret_handle;
+ CK_SESSION_INFO session_info;
+ CK_MECHANISM_INFO mechanism_info;
+ CK_RV rv, rv2;
+#if HAVE_OPENSSL
+ _cleanup_free_ void *compressed_point = NULL;
+ int r;
+#endif
+
+ rv = m->C_GetSessionInfo(session, &session_info);
if (rv != CKR_OK)
return log_error_errno(SYNTHETIC_ERRNO(EIO),
- "Failed to initialize object find call: %s", p11_kit_strerror(rv));
+ "Failed to get information about the PKCS#11 session: %s", sym_p11_kit_strerror(rv));
- rv = m->C_FindObjects(session, objects, ELEMENTSOF(objects), &n_objects);
- rv2 = m->C_FindObjectsFinal(session);
+ rv = m->C_GetMechanismInfo(session_info.slotID, CKM_ECDH1_DERIVE, &mechanism_info);
if (rv != CKR_OK)
return log_error_errno(SYNTHETIC_ERRNO(EIO),
- "Failed to find objects: %s", p11_kit_strerror(rv));
+ "Failed to get information about CKM_ECDH1_DERIVE: %s", sym_p11_kit_strerror(rv));
+
+ if (!(mechanism_info.flags & CKF_EC_UNCOMPRESS)) {
+ if (mechanism_info.flags & CKF_EC_COMPRESS) {
+#if HAVE_OPENSSL
+ log_debug("CKM_ECDH1_DERIVE accepts compressed EC points only, trying to convert.");
+ size_t compressed_point_size;
+ r = ecc_convert_to_compressed(m, session, object, encrypted_data, encrypted_data_size, &compressed_point, &compressed_point_size);
+ if (r < 0)
+ return r;
+
+ params.pPublicData = compressed_point;
+ params.ulPublicDataLen = compressed_point_size;
+#else
+ return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP),
+ "CKM_ECDH1_DERIVE does not support uncompressed format of EC points");
+#endif
+ } else
+ log_debug("Both CKF_EC_UNCOMPRESS and CKF_EC_COMPRESS are false for CKM_ECDH1_DERIVE, ignoring.");
+ }
+
+ rv = m->C_DeriveKey(session, &mechanism, object, (CK_ATTRIBUTE*) shared_secret_template, ELEMENTSOF(shared_secret_template), &shared_secret_handle);
+ if (rv != CKR_OK)
+ return log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to derive a shared secret: %s", sym_p11_kit_strerror(rv));
+
+ CK_ATTRIBUTE shared_secret_attr = { CKA_VALUE, NULL_PTR, 0};
+
+ rv = m->C_GetAttributeValue(session, shared_secret_handle, &shared_secret_attr, 1);
+ if (rv != CKR_OK) {
+ rv2 = m->C_DestroyObject(session, shared_secret_handle);
+ if (rv2 != CKR_OK)
+ log_warning("Failed to destroy a shared secret, ignoring: %s", sym_p11_kit_strerror(rv2));
+ return log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to retrieve shared secret length: %s", sym_p11_kit_strerror(rv));
+ }
+
+ shared_secret_attr.pValue = malloc(shared_secret_attr.ulValueLen);
+ if (!shared_secret_attr.pValue)
+ return log_oom();
+
+ rv = m->C_GetAttributeValue(session, shared_secret_handle, &shared_secret_attr, 1);
+ rv2 = m->C_DestroyObject(session, shared_secret_handle);
if (rv2 != CKR_OK)
- return log_error_errno(SYNTHETIC_ERRNO(EIO),
- "Failed to finalize object find call: %s", p11_kit_strerror(rv));
- if (n_objects == 0)
- return log_error_errno(SYNTHETIC_ERRNO(ENOENT),
- "Failed to find selected private key suitable for decryption on token.");
- if (n_objects > 1)
- return log_error_errno(SYNTHETIC_ERRNO(ENOTUNIQ),
- "Configured private key URI matches multiple keys, refusing.");
+ log_warning("Failed to destroy a shared secret, ignoring: %s", sym_p11_kit_strerror(rv2));
- *ret_object = objects[0];
+ if (rv != CKR_OK) {
+ erase_and_free(shared_secret_attr.pValue);
+ return log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to retrieve a shared secret: %s", sym_p11_kit_strerror(rv));
+ }
+
+ log_info("Successfully derived key with security token.");
+
+ *ret_decrypted_data = shared_secret_attr.pValue;
+ *ret_decrypted_data_size = shared_secret_attr.ulValueLen;
return 0;
}
-int pkcs11_token_decrypt_data(
+static int pkcs11_token_decrypt_data_rsa(
CK_FUNCTION_LIST *m,
CK_SESSION_HANDLE session,
CK_OBJECT_HANDLE object,
CK_ULONG dbuffer_size = 0;
CK_RV rv;
- assert(m);
- assert(encrypted_data);
- assert(encrypted_data_size > 0);
- assert(ret_decrypted_data);
- assert(ret_decrypted_data_size);
-
rv = m->C_DecryptInit(session, (CK_MECHANISM*) &mechanism, object);
if (rv != CKR_OK)
return log_error_errno(SYNTHETIC_ERRNO(EIO),
- "Failed to initialize decryption on security token: %s", p11_kit_strerror(rv));
+ "Failed to initialize decryption on security token: %s", sym_p11_kit_strerror(rv));
dbuffer_size = encrypted_data_size; /* Start with something reasonable */
dbuffer = malloc(dbuffer_size);
}
if (rv != CKR_OK)
return log_error_errno(SYNTHETIC_ERRNO(EIO),
- "Failed to decrypt key on security token: %s", p11_kit_strerror(rv));
+ "Failed to decrypt key on security token: %s", sym_p11_kit_strerror(rv));
log_info("Successfully decrypted key with security token.");
return 0;
}
+int pkcs11_token_decrypt_data(
+ CK_FUNCTION_LIST *m,
+ CK_SESSION_HANDLE session,
+ CK_OBJECT_HANDLE object,
+ const void *encrypted_data,
+ size_t encrypted_data_size,
+ void **ret_decrypted_data,
+ size_t *ret_decrypted_data_size) {
+
+ CK_KEY_TYPE key_type;
+ CK_ATTRIBUTE key_type_template = { CKA_KEY_TYPE, &key_type, sizeof(key_type) };
+ CK_RV rv;
+
+ assert(m);
+ assert(encrypted_data);
+ assert(encrypted_data_size > 0);
+ assert(ret_decrypted_data);
+ assert(ret_decrypted_data_size);
+
+ rv = m->C_GetAttributeValue(session, object, &key_type_template, 1);
+ if (rv != CKR_OK)
+ return log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to retrieve private key type");
+
+ switch (key_type) {
+
+ case CKK_RSA:
+ return pkcs11_token_decrypt_data_rsa(m, session, object, encrypted_data, encrypted_data_size, ret_decrypted_data, ret_decrypted_data_size);
+
+ case CKK_EC:
+ return pkcs11_token_decrypt_data_ecc(m, session, object, encrypted_data, encrypted_data_size, ret_decrypted_data, ret_decrypted_data_size);
+
+ default:
+ return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "Unsupported private key type: %lu", key_type);
+ }
+}
+
int pkcs11_token_acquire_rng(
CK_FUNCTION_LIST *m,
CK_SESSION_HANDLE session) {
assert(m);
+ r = dlopen_p11kit();
+ if (r < 0)
+ return r;
+
/* While we are at it, let's read some RNG data from the PKCS#11 token and pass it to the kernel
* random pool. This should be cheap if we are talking to the device already. Note that we don't
* credit any entropy, since we don't know about the quality of the pkcs#11 token's RNG. Why bother
rv = m->C_GenerateRandom(session, buffer, rps);
if (rv != CKR_OK)
return log_debug_errno(SYNTHETIC_ERRNO(EOPNOTSUPP),
- "Failed to generate RNG data on security token: %s", p11_kit_strerror(rv));
+ "Failed to generate RNG data on security token: %s", sym_p11_kit_strerror(rv));
r = random_write_entropy(-1, buffer, rps, false);
if (r < 0)
rv = m->C_OpenSession(slotid, CKF_SERIAL_SESSION, NULL, NULL, &session);
if (rv != CKR_OK)
return log_error_errno(SYNTHETIC_ERRNO(EIO),
- "Failed to create session for security token '%s': %s", token_label, p11_kit_strerror(rv));
+ "Failed to create session for security token '%s': %s", token_label, sym_p11_kit_strerror(rv));
if (callback)
r = callback(m, session, slotid, slot_info, token_info, search_uri, userdata);
rv = m->C_CloseSession(session);
if (rv != CKR_OK)
- log_warning("Failed to close session on PKCS#11 token, ignoring: %s", p11_kit_strerror(rv));
+ log_warning("Failed to close session on PKCS#11 token, ignoring: %s", sym_p11_kit_strerror(rv));
return r;
}
pkcs11_find_token_callback_t callback,
void *userdata) {
- _cleanup_(p11_kit_uri_freep) P11KitUri* slot_uri = NULL, *token_uri = NULL;
+ _cleanup_(sym_p11_kit_uri_freep) P11KitUri* slot_uri = NULL, *token_uri = NULL;
_cleanup_free_ char *token_uri_string = NULL;
CK_TOKEN_INFO token_info;
CK_SLOT_INFO slot_info;
- int uri_result;
+ int uri_result, r;
CK_RV rv;
assert(m);
+ r = dlopen_p11kit();
+ if (r < 0)
+ return r;
+
/* We return -EAGAIN for all failures we can attribute to a specific slot in some way, so that the
* caller might try other slots before giving up. */
rv = m->C_GetSlotInfo(slotid, &slot_info);
if (rv != CKR_OK) {
- log_warning("Failed to acquire slot info for slot %lu, ignoring slot: %s", slotid, p11_kit_strerror(rv));
+ log_warning("Failed to acquire slot info for slot %lu, ignoring slot: %s", slotid, sym_p11_kit_strerror(rv));
return -EAGAIN;
}
if (DEBUG_LOGGING) {
_cleanup_free_ char *slot_uri_string = NULL;
- uri_result = p11_kit_uri_format(slot_uri, P11_KIT_URI_FOR_ANY, &slot_uri_string);
+ uri_result = sym_p11_kit_uri_format(slot_uri, P11_KIT_URI_FOR_ANY, &slot_uri_string);
if (uri_result != P11_KIT_URI_OK) {
- log_warning("Failed to format slot URI, ignoring slot: %s", p11_kit_uri_message(uri_result));
+ log_warning("Failed to format slot URI, ignoring slot: %s", sym_p11_kit_uri_message(uri_result));
return -EAGAIN;
}
return log_debug_errno(SYNTHETIC_ERRNO(EAGAIN),
"Token not present in slot, ignoring.");
} else if (rv != CKR_OK) {
- log_warning("Failed to acquire token info for slot %lu, ignoring slot: %s", slotid, p11_kit_strerror(rv));
+ log_warning("Failed to acquire token info for slot %lu, ignoring slot: %s", slotid, sym_p11_kit_strerror(rv));
return -EAGAIN;
}
if (!token_uri)
return log_oom();
- uri_result = p11_kit_uri_format(token_uri, P11_KIT_URI_FOR_ANY, &token_uri_string);
+ uri_result = sym_p11_kit_uri_format(token_uri, P11_KIT_URI_FOR_ANY, &token_uri_string);
if (uri_result != P11_KIT_URI_OK) {
- log_warning("Failed to format slot URI: %s", p11_kit_uri_message(uri_result));
+ log_warning("Failed to format slot URI: %s", sym_p11_kit_uri_message(uri_result));
return -EAGAIN;
}
- if (search_uri && !p11_kit_uri_match_token_info(search_uri, &token_info))
+ if (search_uri && !sym_p11_kit_uri_match_token_info(search_uri, &token_info))
return log_debug_errno(SYNTHETIC_ERRNO(EAGAIN),
"Found non-matching token with URI %s.",
token_uri_string);
pkcs11_find_token_callback_t callback,
void *userdata) {
+ _cleanup_(sym_p11_kit_uri_freep) P11KitUri* module_uri = NULL;
_cleanup_free_ char *name = NULL, *module_uri_string = NULL;
- _cleanup_(p11_kit_uri_freep) P11KitUri* module_uri = NULL;
_cleanup_free_ CK_SLOT_ID *slotids = NULL;
CK_ULONG n_slotids = 0;
int uri_result;
assert(m);
+ r = dlopen_p11kit();
+ if (r < 0)
+ return r;
+
/* We ignore most errors from modules here, in order to skip over faulty modules: one faulty module
* should not have the effect that we don't try the others anymore. We indicate such per-module
* failures with -EAGAIN, which let's the caller try the next module. */
- name = p11_kit_module_get_name(m);
+ name = sym_p11_kit_module_get_name(m);
if (!name)
return log_oom();
rv = m->C_GetInfo(&info);
if (rv != CKR_OK) {
- log_warning("Failed to get info on PKCS#11 module, ignoring module: %s", p11_kit_strerror(rv));
+ log_warning("Failed to get info on PKCS#11 module, ignoring module: %s", sym_p11_kit_strerror(rv));
return -EAGAIN;
}
if (!module_uri)
return log_oom();
- uri_result = p11_kit_uri_format(module_uri, P11_KIT_URI_FOR_ANY, &module_uri_string);
+ uri_result = sym_p11_kit_uri_format(module_uri, P11_KIT_URI_FOR_ANY, &module_uri_string);
if (uri_result != P11_KIT_URI_OK) {
- log_warning("Failed to format module URI, ignoring module: %s", p11_kit_uri_message(uri_result));
+ log_warning("Failed to format module URI, ignoring module: %s", sym_p11_kit_uri_message(uri_result));
return -EAGAIN;
}
rv = pkcs11_get_slot_list_malloc(m, &slotids, &n_slotids);
if (rv != CKR_OK) {
- log_warning("Failed to get slot list, ignoring module: %s", p11_kit_strerror(rv));
+ log_warning("Failed to get slot list, ignoring module: %s", sym_p11_kit_strerror(rv));
return -EAGAIN;
}
if (n_slotids == 0)
pkcs11_find_token_callback_t callback,
void *userdata) {
- _cleanup_(p11_kit_modules_finalize_and_releasep) CK_FUNCTION_LIST **modules = NULL;
- _cleanup_(p11_kit_uri_freep) P11KitUri *search_uri = NULL;
+ _cleanup_(sym_p11_kit_modules_finalize_and_releasep) CK_FUNCTION_LIST **modules = NULL;
+ _cleanup_(sym_p11_kit_uri_freep) P11KitUri *search_uri = NULL;
int r;
+ r = dlopen_p11kit();
+ if (r < 0)
+ return r;
+
/* Execute the specified callback for each matching token found. If nothing is found returns
* -EAGAIN. Logs about all errors, except for EAGAIN, which the caller has to log about. */
return log_error_errno(r, "Failed to parse PKCS#11 URI '%s': %m", pkcs11_uri);
}
- modules = p11_kit_modules_load_and_initialize(0);
+ modules = sym_p11_kit_modules_load_and_initialize(0);
if (!modules)
return log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to initialize pkcs11 modules");
char *pin_used;
X509 *cert;
const char *askpw_friendly_name, *askpw_icon_name;
+ AskPasswordFlags askpw_flags;
+ bool headless;
};
static void pkcs11_acquire_certificate_callback_data_release(struct pkcs11_acquire_certificate_callback_data *data) {
void *userdata) {
_cleanup_(erase_and_freep) char *pin_used = NULL;
- struct pkcs11_acquire_certificate_callback_data *data = userdata;
+ struct pkcs11_acquire_certificate_callback_data *data = ASSERT_PTR(userdata);
CK_OBJECT_HANDLE object;
int r;
assert(slot_info);
assert(token_info);
assert(uri);
- assert(data);
/* Called for every token matching our URI */
- r = pkcs11_token_login(m, session, slot_id, token_info, data->askpw_friendly_name, data->askpw_icon_name, "pkcs11-pin", "pkcs11-pin", UINT64_MAX, false, &pin_used);
+ r = pkcs11_token_login(
+ m,
+ session,
+ slot_id,
+ token_info,
+ data->askpw_friendly_name,
+ data->askpw_icon_name,
+ "pkcs11-pin",
+ "pkcs11-pin",
+ UINT64_MAX,
+ data->askpw_flags,
+ data->headless,
+ &pin_used);
if (r < 0)
return r;
void *userdata) {
_cleanup_free_ char *token_uri_string = NULL, *token_label = NULL, *token_manufacturer_id = NULL, *token_model = NULL;
- _cleanup_(p11_kit_uri_freep) P11KitUri *token_uri = NULL;
+ _cleanup_(sym_p11_kit_uri_freep) P11KitUri *token_uri = NULL;
Table *t = userdata;
int uri_result, r;
assert(slot_info);
assert(token_info);
+ r = dlopen_p11kit();
+ if (r < 0)
+ return r;
+
/* We only care about hardware devices here with a token inserted. Let's filter everything else
* out. (Note that the user can explicitly specify non-hardware tokens if they like, but during
* enumeration we'll filter those, since software tokens are typically the system certificate store
* and such, and it's typically not what people want to bind their home directories to.) */
- if (!FLAGS_SET(token_info->flags, CKF_HW_SLOT|CKF_TOKEN_PRESENT))
+ if (!FLAGS_SET(slot_info->flags, CKF_HW_SLOT|CKF_TOKEN_PRESENT))
return -EAGAIN;
token_label = pkcs11_token_label(token_info);
if (!token_uri)
return log_oom();
- uri_result = p11_kit_uri_format(token_uri, P11_KIT_URI_FOR_ANY, &token_uri_string);
+ uri_result = sym_p11_kit_uri_format(token_uri, P11_KIT_URI_FOR_ANY, &token_uri_string);
if (uri_result != P11_KIT_URI_OK)
- return log_warning_errno(SYNTHETIC_ERRNO(EAGAIN), "Failed to format slot URI: %s", p11_kit_uri_message(uri_result));
+ return log_warning_errno(SYNTHETIC_ERRNO(EAGAIN), "Failed to format slot URI: %s", sym_p11_kit_uri_message(uri_result));
r = table_add_many(
t,
P11KitUri *uri,
void *userdata) {
- _cleanup_(p11_kit_uri_freep) P11KitUri *token_uri = NULL;
+ _cleanup_(sym_p11_kit_uri_freep) P11KitUri *token_uri = NULL;
char **t = userdata;
- int uri_result;
+ int uri_result, r;
assert(slot_info);
assert(token_info);
+ r = dlopen_p11kit();
+ if (r < 0)
+ return r;
+
if (!FLAGS_SET(token_info->flags, CKF_HW_SLOT|CKF_TOKEN_PRESENT))
return -EAGAIN;
if (!token_uri)
return log_oom();
- uri_result = p11_kit_uri_format(token_uri, P11_KIT_URI_FOR_ANY, t);
+ uri_result = sym_p11_kit_uri_format(token_uri, P11_KIT_URI_FOR_ANY, t);
if (uri_result != P11_KIT_URI_OK)
- return log_warning_errno(SYNTHETIC_ERRNO(EAGAIN), "Failed to format slot URI: %s", p11_kit_uri_message(uri_result));
+ return log_warning_errno(SYNTHETIC_ERRNO(EAGAIN), "Failed to format slot URI: %s", sym_p11_kit_uri_message(uri_result));
return 0;
}
"PKCS#11 tokens not supported on this build.");
#endif
}
+
+#if HAVE_P11KIT
+void pkcs11_crypt_device_callback_data_release(pkcs11_crypt_device_callback_data *data) {
+ erase_and_free(data->decrypted_key);
+
+ if (data->free_encrypted_key)
+ free(data->encrypted_key);
+}
+
+int pkcs11_crypt_device_callback(
+ CK_FUNCTION_LIST *m,
+ CK_SESSION_HANDLE session,
+ CK_SLOT_ID slot_id,
+ const CK_SLOT_INFO *slot_info,
+ const CK_TOKEN_INFO *token_info,
+ P11KitUri *uri,
+ void *userdata) {
+
+ pkcs11_crypt_device_callback_data *data = ASSERT_PTR(userdata);
+ CK_OBJECT_HANDLE object;
+ int r;
+
+ assert(m);
+ assert(slot_info);
+ assert(token_info);
+ assert(uri);
+
+ /* Called for every token matching our URI */
+
+ r = pkcs11_token_login(
+ m,
+ session,
+ slot_id,
+ token_info,
+ data->friendly_name,
+ "drive-harddisk",
+ "pkcs11-pin",
+ "cryptsetup.pkcs11-pin",
+ data->until,
+ data->askpw_flags,
+ data->headless,
+ NULL);
+ if (r < 0)
+ return r;
+
+ /* We are likely called during early boot, where entropy is scarce. Mix some data from the PKCS#11
+ * token, if it supports that. It should be cheap, given that we already are talking to it anyway and
+ * shouldn't hurt. */
+ (void) pkcs11_token_acquire_rng(m, session);
+
+ r = pkcs11_token_find_private_key(m, session, uri, &object);
+ if (r < 0)
+ return r;
+
+ r = pkcs11_token_decrypt_data(
+ m,
+ session,
+ object,
+ data->encrypted_key,
+ data->encrypted_key_size,
+ &data->decrypted_key,
+ &data->decrypted_key_size);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+#endif
projects / thirdparty / systemd.git / blobdiff