#include "gensec_gssapi.h"
#include "lib/util/util_net.h"
#include "auth/kerberos/pac_utils.h"
+#include "auth/kerberos/gssapi_helper.h"
#ifndef gss_mech_spnego
gss_OID_desc spnego_mech_oid_desc =
static size_t gensec_gssapi_max_input_size(struct gensec_security *gensec_security);
static size_t gensec_gssapi_max_wrapped_size(struct gensec_security *gensec_security);
+static size_t gensec_gssapi_sig_size(struct gensec_security *gensec_security, size_t data_size);
static int gensec_gssapi_destructor(struct gensec_gssapi_state *gensec_gssapi_state)
{
- OM_uint32 maj_stat, min_stat;
-
+ OM_uint32 min_stat;
+
if (gensec_gssapi_state->delegated_cred_handle != GSS_C_NO_CREDENTIAL) {
- maj_stat = gss_release_cred(&min_stat,
- &gensec_gssapi_state->delegated_cred_handle);
+ gss_release_cred(&min_stat,
+ &gensec_gssapi_state->delegated_cred_handle);
}
if (gensec_gssapi_state->gssapi_context != GSS_C_NO_CONTEXT) {
- maj_stat = gss_delete_sec_context (&min_stat,
- &gensec_gssapi_state->gssapi_context,
- GSS_C_NO_BUFFER);
+ gss_delete_sec_context(&min_stat,
+ &gensec_gssapi_state->gssapi_context,
+ GSS_C_NO_BUFFER);
}
if (gensec_gssapi_state->server_name != GSS_C_NO_NAME) {
- maj_stat = gss_release_name(&min_stat, &gensec_gssapi_state->server_name);
+ gss_release_name(&min_stat,
+ &gensec_gssapi_state->server_name);
}
if (gensec_gssapi_state->client_name != GSS_C_NO_NAME) {
- maj_stat = gss_release_name(&min_stat, &gensec_gssapi_state->client_name);
- }
-
- if (gensec_gssapi_state->lucid) {
- gss_krb5_free_lucid_sec_context(&min_stat, gensec_gssapi_state->lucid);
+ gss_release_name(&min_stat,
+ &gensec_gssapi_state->client_name);
}
return 0;
}
-static NTSTATUS gensec_gssapi_init_lucid(struct gensec_gssapi_state *gensec_gssapi_state)
-{
- OM_uint32 maj_stat, min_stat;
-
- if (gensec_gssapi_state->lucid) {
- return NT_STATUS_OK;
- }
-
- maj_stat = gss_krb5_export_lucid_sec_context(&min_stat,
- &gensec_gssapi_state->gssapi_context,
- 1,
- (void **)&gensec_gssapi_state->lucid);
- if (maj_stat != GSS_S_COMPLETE) {
- DEBUG(0,("gensec_gssapi_init_lucid: %s\n",
- gssapi_error_string(gensec_gssapi_state,
- maj_stat, min_stat,
- gensec_gssapi_state->gss_oid)));
- return NT_STATUS_INTERNAL_ERROR;
- }
-
- if (gensec_gssapi_state->lucid->version != 1) {
- DEBUG(0,("gensec_gssapi_init_lucid: lucid version[%d] != 1\n",
- gensec_gssapi_state->lucid->version));
- gss_krb5_free_lucid_sec_context(&min_stat, gensec_gssapi_state->lucid);
- gensec_gssapi_state->lucid = NULL;
- return NT_STATUS_INTERNAL_ERROR;
- }
-
- return NT_STATUS_OK;
-}
-
static NTSTATUS gensec_gssapi_start(struct gensec_security *gensec_security)
{
struct gensec_gssapi_state *gensec_gssapi_state;
krb5_error_code ret;
+#ifdef SAMBA4_USES_HEIMDAL
const char *realm;
+#endif
gensec_gssapi_state = talloc_zero(gensec_security, struct gensec_gssapi_state);
if (!gensec_gssapi_state) {
gensec_gssapi_state->client_cred = NULL;
gensec_gssapi_state->server_cred = NULL;
- gensec_gssapi_state->lucid = NULL;
-
gensec_gssapi_state->delegated_cred_handle = GSS_C_NO_CREDENTIAL;
gensec_gssapi_state->sasl = false;
return NT_STATUS_INVALID_PARAMETER;
case KRB5KDC_ERR_PREAUTH_FAILED:
case KRB5KDC_ERR_C_PRINCIPAL_UNKNOWN:
+ case KRB5KRB_AP_ERR_BAD_INTEGRITY:
DEBUG(1, ("Wrong username or password: %s\n", error_string));
return NT_STATUS_LOGON_FAILURE;
case KRB5KDC_ERR_CLIENT_REVOKED:
DEBUG(1, ("Account locked out: %s\n", error_string));
return NT_STATUS_ACCOUNT_LOCKED_OUT;
+ case KRB5_REALM_UNKNOWN:
case KRB5_KDC_UNREACH:
DEBUG(3, ("Cannot reach a KDC we require to contact %s : %s\n", gensec_gssapi_state->target_principal, error_string));
return NT_STATUS_NO_LOGON_SERVERS;
{
#ifdef SAMBA4_USES_HEIMDAL
struct gsskrb5_send_to_kdc send_to_kdc;
-#endif
krb5_error_code ret;
+#endif
nt_status = gensec_gssapi_client_creds(gensec_security, ev);
if (!NT_STATUS_IS_OK(nt_status)) {
*out = data_blob_talloc(out_mem_ctx, output_token.value, output_token.length);
gss_release_buffer(&min_stat2, &output_token);
- if (gensec_gssapi_state->gss_got_flags & GSS_C_DELEG_FLAG) {
+ if (gensec_gssapi_state->gss_got_flags & GSS_C_DELEG_FLAG &&
+ gensec_gssapi_state->delegated_cred_handle != GSS_C_NO_CREDENTIAL) {
DEBUG(5, ("gensec_gssapi: credentials were delegated\n"));
} else {
DEBUG(5, ("gensec_gssapi: NO credentials were delegated\n"));
return NT_STATUS_MORE_PROCESSING_REQUIRED;
} else if (maj_stat == GSS_S_CONTEXT_EXPIRED) {
- gss_cred_id_t creds;
+ gss_cred_id_t creds = NULL;
gss_name_t name;
gss_buffer_desc buffer;
OM_uint32 lifetime = 0;
&name, &lifetime, &usage, NULL);
if (maj_stat == GSS_S_COMPLETE) {
- const char *usage_string;
+ const char *usage_string = NULL;
switch (usage) {
case GSS_C_BOTH:
usage_string = "GSS_C_BOTH";
gensec_security->gensec_role == GENSEC_CLIENT ? "client" : "server",
gensec_gssapi_state->gss_exchange_count,
gssapi_error_string(out_mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
- return nt_status;
+ return NT_STATUS_LOGON_FAILURE;
}
} else {
DEBUG(1, ("GSS %s Update(%d) failed: %s\n",
gensec_security->gensec_role == GENSEC_CLIENT ? "client" : "server",
gensec_gssapi_state->gss_exchange_count,
gssapi_error_string(out_mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
- return nt_status;
+ return NT_STATUS_LOGON_FAILURE;
}
break;
}
{
struct gensec_gssapi_state *gensec_gssapi_state
= talloc_get_type(gensec_security->private_data, struct gensec_gssapi_state);
- OM_uint32 maj_stat, min_stat;
- gss_buffer_desc input_token, output_token;
- int conf_state;
- ssize_t sig_length;
+ bool hdr_signing = false;
+ size_t sig_size = 0;
+ NTSTATUS status;
if (gensec_security->want_features & GENSEC_FEATURE_SIGN_PKT_HEADER) {
- DEBUG(1, ("gensec_gssapi_seal_packet: "
- "GENSEC_FEATURE_SIGN_PKT_HEADER not supported\n"));
- return NT_STATUS_ACCESS_DENIED;
+ hdr_signing = true;
}
- input_token.length = length;
- input_token.value = data;
-
- maj_stat = gss_wrap(&min_stat,
- gensec_gssapi_state->gssapi_context,
- gensec_have_feature(gensec_security, GENSEC_FEATURE_SEAL),
- GSS_C_QOP_DEFAULT,
- &input_token,
- &conf_state,
- &output_token);
- if (GSS_ERROR(maj_stat)) {
- DEBUG(1, ("gensec_gssapi_seal_packet: GSS Wrap failed: %s\n",
- gssapi_error_string(mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
- return NT_STATUS_ACCESS_DENIED;
- }
+ sig_size = gensec_gssapi_sig_size(gensec_security, length);
- if (output_token.length < input_token.length) {
- DEBUG(1, ("gensec_gssapi_seal_packet: GSS Wrap length [%ld] *less* than caller length [%ld]\n",
- (long)output_token.length, (long)length));
- return NT_STATUS_INTERNAL_ERROR;
+ status = gssapi_seal_packet(gensec_gssapi_state->gssapi_context,
+ gensec_gssapi_state->gss_oid,
+ hdr_signing, sig_size,
+ data, length,
+ whole_pdu, pdu_length,
+ mem_ctx, sig);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("gssapi_seal_packet(hdr_signing=%u,sig_size=%zu,"
+ "data=%zu,pdu=%zu) failed: %s\n",
+ hdr_signing, sig_size, length, pdu_length,
+ nt_errstr(status)));
+ return status;
}
- sig_length = output_token.length - input_token.length;
-
- memcpy(data, ((uint8_t *)output_token.value) + sig_length, length);
- *sig = data_blob_talloc(mem_ctx, (uint8_t *)output_token.value, sig_length);
- dump_data_pw("gensec_gssapi_seal_packet: sig\n", sig->data, sig->length);
- dump_data_pw("gensec_gssapi_seal_packet: clear\n", data, length);
- dump_data_pw("gensec_gssapi_seal_packet: sealed\n", ((uint8_t *)output_token.value) + sig_length, output_token.length - sig_length);
-
- gss_release_buffer(&min_stat, &output_token);
-
- if (gensec_have_feature(gensec_security, GENSEC_FEATURE_SEAL)
- && !conf_state) {
- return NT_STATUS_ACCESS_DENIED;
- }
return NT_STATUS_OK;
}
{
struct gensec_gssapi_state *gensec_gssapi_state
= talloc_get_type(gensec_security->private_data, struct gensec_gssapi_state);
- OM_uint32 maj_stat, min_stat;
- gss_buffer_desc input_token, output_token;
- int conf_state;
- gss_qop_t qop_state;
- DATA_BLOB in;
-
- dump_data_pw("gensec_gssapi_unseal_packet: sig\n", sig->data, sig->length);
+ bool hdr_signing = false;
+ NTSTATUS status;
if (gensec_security->want_features & GENSEC_FEATURE_SIGN_PKT_HEADER) {
- DEBUG(1, ("gensec_gssapi_unseal_packet: "
- "GENSEC_FEATURE_SIGN_PKT_HEADER not supported\n"));
- return NT_STATUS_ACCESS_DENIED;
- }
-
- in = data_blob_talloc(gensec_security, NULL, sig->length + length);
-
- memcpy(in.data, sig->data, sig->length);
- memcpy(in.data + sig->length, data, length);
-
- input_token.length = in.length;
- input_token.value = in.data;
-
- maj_stat = gss_unwrap(&min_stat,
- gensec_gssapi_state->gssapi_context,
- &input_token,
- &output_token,
- &conf_state,
- &qop_state);
- talloc_free(in.data);
- if (GSS_ERROR(maj_stat)) {
- char *error_string = gssapi_error_string(NULL, maj_stat, min_stat, gensec_gssapi_state->gss_oid);
- DEBUG(1, ("gensec_gssapi_unseal_packet: GSS UnWrap failed: %s\n",
- error_string));
- talloc_free(error_string);
- return NT_STATUS_ACCESS_DENIED;
+ hdr_signing = true;
}
- if (output_token.length != length) {
- return NT_STATUS_INTERNAL_ERROR;
+ status = gssapi_unseal_packet(gensec_gssapi_state->gssapi_context,
+ gensec_gssapi_state->gss_oid,
+ hdr_signing,
+ data, length,
+ whole_pdu, pdu_length,
+ sig);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("gssapi_unseal_packet(hdr_signing=%u,sig_size=%zu,"
+ "data=%zu,pdu=%zu) failed: %s\n",
+ hdr_signing, sig->length, length, pdu_length,
+ nt_errstr(status)));
+ return status;
}
- memcpy(data, output_token.value, length);
-
- gss_release_buffer(&min_stat, &output_token);
-
- if (gensec_have_feature(gensec_security, GENSEC_FEATURE_SEAL)
- && !conf_state) {
- return NT_STATUS_ACCESS_DENIED;
- }
return NT_STATUS_OK;
}
{
struct gensec_gssapi_state *gensec_gssapi_state
= talloc_get_type(gensec_security->private_data, struct gensec_gssapi_state);
- OM_uint32 maj_stat, min_stat;
- gss_buffer_desc input_token, output_token;
+ bool hdr_signing = false;
+ NTSTATUS status;
if (gensec_security->want_features & GENSEC_FEATURE_SIGN_PKT_HEADER) {
- input_token.length = pdu_length;
- input_token.value = discard_const_p(uint8_t *, whole_pdu);
- } else {
- input_token.length = length;
- input_token.value = discard_const_p(uint8_t *, data);
+ hdr_signing = true;
}
- maj_stat = gss_get_mic(&min_stat,
- gensec_gssapi_state->gssapi_context,
- GSS_C_QOP_DEFAULT,
- &input_token,
- &output_token);
- if (GSS_ERROR(maj_stat)) {
- DEBUG(1, ("GSS GetMic failed: %s\n",
- gssapi_error_string(mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
- return NT_STATUS_ACCESS_DENIED;
+ status = gssapi_sign_packet(gensec_gssapi_state->gssapi_context,
+ gensec_gssapi_state->gss_oid,
+ hdr_signing,
+ data, length,
+ whole_pdu, pdu_length,
+ mem_ctx, sig);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("gssapi_sign_packet(hdr_signing=%u,"
+ "data=%zu,pdu=%zu) failed: %s\n",
+ hdr_signing, length, pdu_length,
+ nt_errstr(status)));
+ return status;
}
- *sig = data_blob_talloc(mem_ctx, (uint8_t *)output_token.value, output_token.length);
-
- dump_data_pw("gensec_gssapi_sign_packet: sig\n", sig->data, sig->length);
-
- gss_release_buffer(&min_stat, &output_token);
-
return NT_STATUS_OK;
}
{
struct gensec_gssapi_state *gensec_gssapi_state
= talloc_get_type(gensec_security->private_data, struct gensec_gssapi_state);
- OM_uint32 maj_stat, min_stat;
- gss_buffer_desc input_token;
- gss_buffer_desc input_message;
- gss_qop_t qop_state;
-
- dump_data_pw("gensec_gssapi_check_packet: sig\n", sig->data, sig->length);
+ bool hdr_signing = false;
+ NTSTATUS status;
if (gensec_security->want_features & GENSEC_FEATURE_SIGN_PKT_HEADER) {
- input_message.length = pdu_length;
- input_message.value = discard_const(whole_pdu);
- } else {
- input_message.length = length;
- input_message.value = discard_const(data);
+ hdr_signing = true;
}
- input_token.length = sig->length;
- input_token.value = sig->data;
-
- maj_stat = gss_verify_mic(&min_stat,
- gensec_gssapi_state->gssapi_context,
- &input_message,
- &input_token,
- &qop_state);
- if (GSS_ERROR(maj_stat)) {
- char *error_string = gssapi_error_string(NULL, maj_stat, min_stat, gensec_gssapi_state->gss_oid);
- DEBUG(1, ("GSS VerifyMic failed: %s\n", error_string));
- talloc_free(error_string);
-
- return NT_STATUS_ACCESS_DENIED;
+ status = gssapi_check_packet(gensec_gssapi_state->gssapi_context,
+ gensec_gssapi_state->gss_oid,
+ hdr_signing,
+ data, length,
+ whole_pdu, pdu_length,
+ sig);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("gssapi_check_packet(hdr_signing=%u,sig_size=%zu,"
+ "data=%zu,pdu=%zu) failed: %s\n",
+ hdr_signing, sig->length, length, pdu_length,
+ nt_errstr(status)));
+ return status;
}
return NT_STATUS_OK;
}
if (feature & GENSEC_FEATURE_SIGN_PKT_HEADER) {
if (gensec_security->want_features & GENSEC_FEATURE_SEAL) {
- /* TODO: implement this using gss_wrap_iov() */
- return false;
+ return true;
}
if (gensec_security->want_features & GENSEC_FEATURE_SIGN) {
return nt_status;
}
- if (!(gensec_gssapi_state->gss_got_flags & GSS_C_DELEG_FLAG)) {
- DEBUG(10, ("gensec_gssapi: NO delegated credentials supplied by client\n"));
- } else {
+ if (gensec_gssapi_state->gss_got_flags & GSS_C_DELEG_FLAG &&
+ gensec_gssapi_state->delegated_cred_handle != GSS_C_NO_CREDENTIAL) {
krb5_error_code ret;
const char *error_string;
/* It has been taken from this place... */
gensec_gssapi_state->delegated_cred_handle = GSS_C_NO_CREDENTIAL;
+ } else {
+ DEBUG(10, ("gensec_gssapi: NO delegated credentials supplied by client\n"));
}
+
*_session_info = talloc_steal(mem_ctx, session_info);
talloc_free(tmp_ctx);
{
struct gensec_gssapi_state *gensec_gssapi_state
= talloc_get_type(gensec_security->private_data, struct gensec_gssapi_state);
- NTSTATUS status;
+ size_t sig_size;
- if (gensec_gssapi_state->sig_size) {
+ if (gensec_gssapi_state->sig_size > 0) {
return gensec_gssapi_state->sig_size;
}
- if (gensec_gssapi_state->gss_got_flags & GSS_C_CONF_FLAG) {
- gensec_gssapi_state->sig_size = 45;
- } else {
- gensec_gssapi_state->sig_size = 37;
- }
-
- status = gensec_gssapi_init_lucid(gensec_gssapi_state);
- if (!NT_STATUS_IS_OK(status)) {
- return gensec_gssapi_state->sig_size;
- }
-
- if (gensec_gssapi_state->lucid->protocol == 1) {
- if (gensec_gssapi_state->gss_got_flags & GSS_C_CONF_FLAG) {
- /*
- * TODO: windows uses 76 here, but we don't know
- * gss_wrap works with aes keys yet
- */
- gensec_gssapi_state->sig_size = 76;
- } else {
- gensec_gssapi_state->sig_size = 28;
- }
- } else if (gensec_gssapi_state->lucid->protocol == 0) {
- switch (gensec_gssapi_state->lucid->rfc1964_kd.ctx_key.type) {
- case ENCTYPE_DES_CBC_CRC:
- case ENCTYPE_ARCFOUR_HMAC:
- case ENCTYPE_ARCFOUR_HMAC_EXP:
- if (gensec_gssapi_state->gss_got_flags & GSS_C_CONF_FLAG) {
- gensec_gssapi_state->sig_size = 45;
- } else {
- gensec_gssapi_state->sig_size = 37;
- }
- break;
-#ifdef SAMBA4_USES_HEIMDAL
- case ENCTYPE_OLD_DES3_CBC_SHA1:
- if (gensec_gssapi_state->gss_got_flags & GSS_C_CONF_FLAG) {
- gensec_gssapi_state->sig_size = 57;
- } else {
- gensec_gssapi_state->sig_size = 49;
- }
- break;
-#endif
- }
- }
+ sig_size = gssapi_get_sig_size(gensec_gssapi_state->gssapi_context,
+ gensec_gssapi_state->gss_oid,
+ gensec_gssapi_state->gss_want_flags,
+ data_size);
+ gensec_gssapi_state->sig_size = sig_size;
return gensec_gssapi_state->sig_size;
}
.check_packet = gensec_gssapi_check_packet,
.seal_packet = gensec_gssapi_seal_packet,
.unseal_packet = gensec_gssapi_unseal_packet,
+ .max_input_size = gensec_gssapi_max_input_size,
+ .max_wrapped_size = gensec_gssapi_max_wrapped_size,
.wrap = gensec_gssapi_wrap,
.unwrap = gensec_gssapi_unwrap,
.have_feature = gensec_gssapi_have_feature,
.check_packet = gensec_gssapi_check_packet,
.seal_packet = gensec_gssapi_seal_packet,
.unseal_packet = gensec_gssapi_unseal_packet,
+ .max_input_size = gensec_gssapi_max_input_size,
+ .max_wrapped_size = gensec_gssapi_max_wrapped_size,
.wrap = gensec_gssapi_wrap,
.unwrap = gensec_gssapi_unwrap,
.have_feature = gensec_gssapi_have_feature,
git.samba.org / abartlet / samba.git / .git / blobdiff