#include "auth/session_proto.h"
#include <gssapi/gssapi.h>
#include <gssapi/gssapi_krb5.h>
-
-enum gensec_gssapi_sasl_state
-{
- STAGE_GSS_NEG,
- STAGE_SASL_SSF_NEG,
- STAGE_SASL_SSF_ACCEPT,
- STAGE_DONE
-};
-
-#define NEG_SEAL 0x4
-#define NEG_SIGN 0x2
-#define NEG_NONE 0x1
-
-struct gensec_gssapi_state {
- gss_ctx_id_t gssapi_context;
- struct gss_channel_bindings_struct *input_chan_bindings;
- gss_name_t server_name;
- gss_name_t client_name;
- OM_uint32 want_flags, got_flags;
- gss_OID gss_oid;
-
- DATA_BLOB session_key;
- DATA_BLOB pac;
-
- struct smb_krb5_context *smb_krb5_context;
- struct gssapi_creds_container *client_cred;
- struct gssapi_creds_container *server_cred;
-
- gss_cred_id_t delegated_cred_handle;
-
- bool sasl; /* We have two different mechs in this file: One
- * for SASL wrapped GSSAPI and another for normal
- * GSSAPI */
- enum gensec_gssapi_sasl_state sasl_state;
- uint8_t sasl_protection; /* What was negotiated at the SASL
- * layer, independent of the GSSAPI
- * layer... */
-
- size_t max_wrap_buf_size;
- int gss_exchange_count;
- size_t sig_size;
-};
+#include <gssapi/gssapi_spnego.h>
+#include "auth/gensec/gensec_gssapi.h"
+#include "lib/util/util_net.h"
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);
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);
+ }
+
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;
- struct gsskrb5_send_to_kdc send_to_kdc;
+ const char *realm;
- gensec_gssapi_state = talloc(gensec_security, struct gensec_gssapi_state);
+ gensec_gssapi_state = talloc_zero(gensec_security, struct gensec_gssapi_state);
if (!gensec_gssapi_state) {
return NT_STATUS_NO_MEMORY;
}
-
- gensec_gssapi_state->gss_exchange_count = 0;
- gensec_gssapi_state->max_wrap_buf_size
- = lp_parm_int(gensec_security->lp_ctx, NULL, "gensec_gssapi", "max wrap buf size", 65536);
-
- gensec_gssapi_state->sasl = false;
- gensec_gssapi_state->sasl_state = STAGE_GSS_NEG;
gensec_security->private_data = gensec_gssapi_state;
gensec_gssapi_state->gssapi_context = GSS_C_NO_CONTEXT;
- gensec_gssapi_state->server_name = GSS_C_NO_NAME;
- gensec_gssapi_state->client_name = GSS_C_NO_NAME;
/* TODO: Fill in channel bindings */
gensec_gssapi_state->input_chan_bindings = GSS_C_NO_CHANNEL_BINDINGS;
+
+ gensec_gssapi_state->server_name = GSS_C_NO_NAME;
+ gensec_gssapi_state->client_name = GSS_C_NO_NAME;
gensec_gssapi_state->want_flags = 0;
- if (lp_parm_bool(gensec_security->lp_ctx, NULL, "gensec_gssapi", "mutual", true)) {
+
+ if (gensec_setting_bool(gensec_security->settings, "gensec_gssapi", "delegation_by_kdc_policy", true)) {
+ gensec_gssapi_state->want_flags |= GSS_C_DELEG_POLICY_FLAG;
+ }
+ if (gensec_setting_bool(gensec_security->settings, "gensec_gssapi", "mutual", true)) {
gensec_gssapi_state->want_flags |= GSS_C_MUTUAL_FLAG;
}
- if (lp_parm_bool(gensec_security->lp_ctx, NULL, "gensec_gssapi", "delegation", true)) {
+ if (gensec_setting_bool(gensec_security->settings, "gensec_gssapi", "delegation", true)) {
gensec_gssapi_state->want_flags |= GSS_C_DELEG_FLAG;
}
- if (lp_parm_bool(gensec_security->lp_ctx, NULL, "gensec_gssapi", "replay", true)) {
+ if (gensec_setting_bool(gensec_security->settings, "gensec_gssapi", "replay", true)) {
gensec_gssapi_state->want_flags |= GSS_C_REPLAY_FLAG;
}
- if (lp_parm_bool(gensec_security->lp_ctx, NULL, "gensec_gssapi", "sequence", true)) {
+ if (gensec_setting_bool(gensec_security->settings, "gensec_gssapi", "sequence", true)) {
gensec_gssapi_state->want_flags |= GSS_C_SEQUENCE_FLAG;
}
- gensec_gssapi_state->got_flags = 0;
-
- gensec_gssapi_state->session_key = data_blob(NULL, 0);
- gensec_gssapi_state->pac = data_blob(NULL, 0);
-
- gensec_gssapi_state->delegated_cred_handle = GSS_C_NO_CREDENTIAL;
- gensec_gssapi_state->sig_size = 0;
-
- talloc_set_destructor(gensec_gssapi_state, gensec_gssapi_destructor);
-
if (gensec_security->want_features & GENSEC_FEATURE_SIGN) {
gensec_gssapi_state->want_flags |= GSS_C_INTEG_FLAG;
}
gensec_gssapi_state->want_flags |= GSS_C_DCE_STYLE;
}
- gensec_gssapi_state->gss_oid = GSS_C_NULL_OID;
-
- send_to_kdc.func = smb_krb5_send_and_recv_func;
- send_to_kdc.ptr = gensec_security->event_ctx;
+ gensec_gssapi_state->got_flags = 0;
+
+ switch (gensec_security->ops->auth_type) {
+ case DCERPC_AUTH_TYPE_SPNEGO:
+ gensec_gssapi_state->gss_oid = gss_mech_spnego;
+ break;
+ case DCERPC_AUTH_TYPE_KRB5:
+ default:
+ gensec_gssapi_state->gss_oid = gss_mech_krb5;
+ break;
+ }
+
+ gensec_gssapi_state->session_key = data_blob(NULL, 0);
+ gensec_gssapi_state->pac = data_blob(NULL, 0);
- ret = gsskrb5_set_send_to_kdc(&send_to_kdc);
+ ret = smb_krb5_init_context(gensec_gssapi_state,
+ NULL,
+ gensec_security->settings->lp_ctx,
+ &gensec_gssapi_state->smb_krb5_context);
if (ret) {
- DEBUG(1,("gensec_krb5_start: gsskrb5_set_send_to_kdc failed\n"));
+ DEBUG(1,("gensec_krb5_start: krb5_init_context failed (%s)\n",
+ error_message(ret)));
talloc_free(gensec_gssapi_state);
return NT_STATUS_INTERNAL_ERROR;
}
- if (lp_realm(gensec_security->lp_ctx) && *lp_realm(gensec_security->lp_ctx)) {
- char *upper_realm = strupper_talloc(gensec_gssapi_state, lp_realm(gensec_security->lp_ctx));
- if (!upper_realm) {
- DEBUG(1,("gensec_krb5_start: could not uppercase realm: %s\n", lp_realm(gensec_security->lp_ctx)));
- talloc_free(gensec_gssapi_state);
- return NT_STATUS_NO_MEMORY;
- }
- ret = gsskrb5_set_default_realm(upper_realm);
- talloc_free(upper_realm);
+
+ 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;
+ gensec_gssapi_state->sasl_state = STAGE_GSS_NEG;
+ gensec_gssapi_state->sasl_protection = 0;
+
+ gensec_gssapi_state->max_wrap_buf_size
+ = gensec_setting_int(gensec_security->settings, "gensec_gssapi", "max wrap buf size", 65536);
+ gensec_gssapi_state->gss_exchange_count = 0;
+ gensec_gssapi_state->sig_size = 0;
+
+ talloc_set_destructor(gensec_gssapi_state, gensec_gssapi_destructor);
+
+ realm = lpcfg_realm(gensec_security->settings->lp_ctx);
+ if (realm != NULL) {
+ ret = gsskrb5_set_default_realm(realm);
if (ret) {
DEBUG(1,("gensec_krb5_start: gsskrb5_set_default_realm failed\n"));
talloc_free(gensec_gssapi_state);
}
/* don't do DNS lookups of any kind, it might/will fail for a netbios name */
- ret = gsskrb5_set_dns_canonicalize(lp_parm_bool(gensec_security->lp_ctx, NULL, "krb5", "set_dns_canonicalize", false));
+ ret = gsskrb5_set_dns_canonicalize(gensec_setting_bool(gensec_security->settings, "krb5", "set_dns_canonicalize", false));
if (ret) {
DEBUG(1,("gensec_krb5_start: gsskrb5_set_dns_canonicalize failed\n"));
talloc_free(gensec_gssapi_state);
return NT_STATUS_INTERNAL_ERROR;
}
- ret = smb_krb5_init_context(gensec_gssapi_state,
- gensec_security->event_ctx,
- gensec_security->lp_ctx,
- &gensec_gssapi_state->smb_krb5_context);
- if (ret) {
- DEBUG(1,("gensec_krb5_start: krb5_init_context failed (%s)\n",
- error_message(ret)));
- talloc_free(gensec_gssapi_state);
- return NT_STATUS_INTERNAL_ERROR;
- }
return NT_STATUS_OK;
}
return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
} else {
ret = cli_credentials_get_server_gss_creds(machine_account,
- gensec_security->event_ctx,
- gensec_security->lp_ctx, &gcc);
+ gensec_security->settings->lp_ctx, &gcc);
if (ret) {
DEBUG(1, ("Aquiring acceptor credentials failed: %s\n",
error_message(ret)));
gss_OID name_type;
OM_uint32 maj_stat, min_stat;
const char *hostname = gensec_get_target_hostname(gensec_security);
- const char *principal;
struct gssapi_creds_container *gcc;
+ const char *error_string;
if (!hostname) {
DEBUG(1, ("Could not determine hostname for target computer, cannot use kerberos\n"));
gensec_gssapi_state = talloc_get_type(gensec_security->private_data, struct gensec_gssapi_state);
- gensec_gssapi_state->gss_oid = gss_mech_krb5;
-
- principal = gensec_get_target_principal(gensec_security);
- if (principal && lp_client_use_spnego_principal(gensec_security->lp_ctx)) {
+ gensec_gssapi_state->target_principal = gensec_get_target_principal(gensec_security);
+ if (gensec_gssapi_state->target_principal) {
name_type = GSS_C_NULL_OID;
} else {
- principal = talloc_asprintf(gensec_gssapi_state, "%s@%s",
+ gensec_gssapi_state->target_principal = talloc_asprintf(gensec_gssapi_state, "%s/%s@%s",
gensec_get_target_service(gensec_security),
- hostname);
+ hostname, lpcfg_realm(gensec_security->settings->lp_ctx));
- name_type = GSS_C_NT_HOSTBASED_SERVICE;
- }
- name_token.value = discard_const_p(uint8_t, principal);
- name_token.length = strlen(principal);
+ name_type = GSS_C_NT_USER_NAME;
+ }
+ name_token.value = discard_const_p(uint8_t, gensec_gssapi_state->target_principal);
+ name_token.length = strlen(gensec_gssapi_state->target_principal);
maj_stat = gss_import_name (&min_stat,
ret = cli_credentials_get_client_gss_creds(creds,
gensec_security->event_ctx,
- gensec_security->lp_ctx, &gcc);
+ gensec_security->settings->lp_ctx, &gcc, &error_string);
switch (ret) {
case 0:
break;
case KRB5KDC_ERR_PREAUTH_FAILED:
+ case KRB5KDC_ERR_C_PRINCIPAL_UNKNOWN:
+ DEBUG(1, ("Wrong username or password: %s\n", error_string));
return NT_STATUS_LOGON_FAILURE;
case KRB5_KDC_UNREACH:
- DEBUG(3, ("Cannot reach a KDC we require to contact %s\n", principal));
- return NT_STATUS_INVALID_PARAMETER; /* Make SPNEGO ignore us, we can't go any further here */
+ 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;
+ case KRB5_CC_NOTFOUND:
+ case KRB5_CC_END:
+ DEBUG(2, ("Error obtaining ticket we require to contact %s: (possibly due to clock skew between us and the KDC) %s\n", gensec_gssapi_state->target_principal, error_string));
+ return NT_STATUS_TIME_DIFFERENCE_AT_DC;
default:
- DEBUG(1, ("Aquiring initiator credentials failed\n"));
+ DEBUG(1, ("Aquiring initiator credentials failed: %s\n", error_string));
return NT_STATUS_UNSUCCESSFUL;
}
switch (gensec_security->gensec_role) {
case GENSEC_CLIENT:
{
+ struct gsskrb5_send_to_kdc send_to_kdc;
+ krb5_error_code ret;
+ send_to_kdc.func = smb_krb5_send_and_recv_func;
+ send_to_kdc.ptr = gensec_security->event_ctx;
+
+ min_stat = gsskrb5_set_send_to_kdc(&send_to_kdc);
+ if (min_stat) {
+ DEBUG(1,("gensec_krb5_start: gsskrb5_set_send_to_kdc failed\n"));
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
maj_stat = gss_init_sec_context(&min_stat,
gensec_gssapi_state->client_cred->creds,
&gensec_gssapi_state->gssapi_context,
if (gss_oid_p) {
gensec_gssapi_state->gss_oid = gss_oid_p;
}
+
+ send_to_kdc.func = smb_krb5_send_and_recv_func;
+ send_to_kdc.ptr = NULL;
+
+ ret = gsskrb5_set_send_to_kdc(&send_to_kdc);
+ if (ret) {
+ DEBUG(1,("gensec_krb5_start: gsskrb5_set_send_to_kdc failed\n"));
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
break;
}
case GENSEC_SERVER:
/* We may have been invoked as SASL, so there
* is more work to do */
if (gensec_gssapi_state->sasl) {
- /* Due to a very subtle interaction
- * with SASL and the LDAP libs, we
- * must ensure the data pointer is
- * != NULL, but the length is 0.
- *
- * This ensures we send a 'zero
- * length' (rather than NULL) response
- */
-
- if (!out->data) {
- out->data = (uint8_t *)talloc_strdup(out_mem_ctx, "\0");
- }
-
gensec_gssapi_state->sasl_state = STAGE_SASL_SSF_NEG;
return NT_STATUS_MORE_PROCESSING_REQUIRED;
} else {
gensec_gssapi_state->sasl_state = STAGE_DONE;
if (gensec_have_feature(gensec_security, GENSEC_FEATURE_SEAL)) {
- DEBUG(5, ("GSSAPI Connection will be cryptographicly sealed\n"));
+ DEBUG(5, ("GSSAPI Connection will be cryptographically sealed\n"));
} else if (gensec_have_feature(gensec_security, GENSEC_FEATURE_SIGN)) {
- DEBUG(5, ("GSSAPI Connection will be cryptographicly signed\n"));
+ DEBUG(5, ("GSSAPI Connection will be cryptographically signed\n"));
} else {
DEBUG(5, ("GSSAPI Connection will have no cryptographic protection\n"));
}
return NT_STATUS_MORE_PROCESSING_REQUIRED;
} else if (gss_oid_equal(gensec_gssapi_state->gss_oid, gss_mech_krb5)) {
switch (min_stat) {
- case KRB5_KDC_UNREACH:
- DEBUG(3, ("Cannot reach a KDC we require: %s\n",
- gssapi_error_string(gensec_gssapi_state, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
+ case KRB5KRB_AP_ERR_TKT_NYV:
+ DEBUG(1, ("Error with ticket to contact %s: possible clock skew between us and the KDC or target server: %s\n",
+ gensec_gssapi_state->target_principal,
+ gssapi_error_string(out_mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
+ return NT_STATUS_TIME_DIFFERENCE_AT_DC; /* Make SPNEGO ignore us, we can't go any further here */
+ case KRB5KRB_AP_ERR_TKT_EXPIRED:
+ DEBUG(1, ("Error with ticket to contact %s: ticket is expired, possible clock skew between us and the KDC or target server: %s\n",
+ gensec_gssapi_state->target_principal,
+ gssapi_error_string(out_mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
return NT_STATUS_INVALID_PARAMETER; /* Make SPNEGO ignore us, we can't go any further here */
+ case KRB5_KDC_UNREACH:
+ DEBUG(3, ("Cannot reach a KDC we require in order to obtain a ticetk to %s: %s\n",
+ gensec_gssapi_state->target_principal,
+ gssapi_error_string(out_mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
+ return NT_STATUS_NO_LOGON_SERVERS; /* Make SPNEGO ignore us, we can't go any further here */
case KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN:
- DEBUG(3, ("Server is not registered with our KDC: %s\n",
- gssapi_error_string(gensec_gssapi_state, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
+ DEBUG(3, ("Server %s is not registered with our KDC: %s\n",
+ gensec_gssapi_state->target_principal,
+ gssapi_error_string(out_mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
return NT_STATUS_INVALID_PARAMETER; /* Make SPNEGO ignore us, we can't go any further here */
case KRB5KRB_AP_ERR_MSG_TYPE:
/* garbage input, possibly from the auto-mech detection */
return NT_STATUS_INVALID_PARAMETER;
default:
- DEBUG(1, ("GSS Update(krb5)(%d) Update failed: %s\n",
+ DEBUG(1, ("GSS %s Update(krb5)(%d) Update 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;
}
} else {
- DEBUG(1, ("GSS Update(%d) failed: %s\n",
+ 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;
gensec_gssapi_state->max_wrap_buf_size = MIN(RIVAL(maxlength_proposed, 0),
gensec_gssapi_state->max_wrap_buf_size);
gensec_gssapi_state->sasl_protection = 0;
- if (gensec_have_feature(gensec_security, GENSEC_FEATURE_SEAL)) {
- if (security_supported & NEG_SEAL) {
+ if (security_supported & NEG_SEAL) {
+ if (gensec_have_feature(gensec_security, GENSEC_FEATURE_SEAL)) {
gensec_gssapi_state->sasl_protection |= NEG_SEAL;
}
- } else if (gensec_have_feature(gensec_security, GENSEC_FEATURE_SIGN)) {
- if (security_supported & NEG_SIGN) {
+ }
+ if (security_supported & NEG_SIGN) {
+ if (gensec_have_feature(gensec_security, GENSEC_FEATURE_SIGN)) {
gensec_gssapi_state->sasl_protection |= NEG_SIGN;
}
- } else if (security_supported & NEG_NONE) {
+ }
+ if (security_supported & NEG_NONE) {
gensec_gssapi_state->sasl_protection |= NEG_NONE;
- } else {
- DEBUG(1, ("Remote server does not support unprotected connections"));
+ }
+ if (gensec_gssapi_state->sasl_protection == 0) {
+ DEBUG(1, ("Remote server does not support unprotected connections\n"));
return NT_STATUS_ACCESS_DENIED;
}
gensec_gssapi_state->sasl_state = STAGE_DONE;
if (gensec_have_feature(gensec_security, GENSEC_FEATURE_SEAL)) {
- DEBUG(3, ("SASL/GSSAPI Connection to server will be cryptographicly sealed\n"));
+ DEBUG(3, ("SASL/GSSAPI Connection to server will be cryptographically sealed\n"));
} else if (gensec_have_feature(gensec_security, GENSEC_FEATURE_SIGN)) {
- DEBUG(3, ("SASL/GSSAPI Connection to server will be cryptographicly signed\n"));
+ DEBUG(3, ("SASL/GSSAPI Connection to server will be cryptographically signed\n"));
} else {
- DEBUG(3, ("SASL/GSSAPI Connection to server will have no cryptographicly protection\n"));
+ DEBUG(3, ("SASL/GSSAPI Connection to server will have no cryptographically protection\n"));
}
return NT_STATUS_OK;
/* first byte is the proposed security */
security_accepted = maxlength_accepted[0];
maxlength_accepted[0] = '\0';
-
+
/* Rest is the proposed max wrap length */
gensec_gssapi_state->max_wrap_buf_size = MIN(RIVAL(maxlength_accepted, 0),
gensec_gssapi_state->max_wrap_buf_size);
gensec_gssapi_state->sasl_protection = 0;
- if (gensec_have_feature(gensec_security, GENSEC_FEATURE_SEAL)) {
- if (security_accepted & NEG_SEAL) {
- gensec_gssapi_state->sasl_protection |= NEG_SEAL;
+ if (security_accepted & NEG_SEAL) {
+ if (!gensec_have_feature(gensec_security, GENSEC_FEATURE_SEAL)) {
+ DEBUG(1, ("Remote client wanted seal, but gensec refused\n"));
+ return NT_STATUS_ACCESS_DENIED;
}
- } else if (gensec_have_feature(gensec_security, GENSEC_FEATURE_SIGN)) {
- if (security_accepted & NEG_SIGN) {
- gensec_gssapi_state->sasl_protection |= NEG_SIGN;
+ gensec_gssapi_state->sasl_protection |= NEG_SEAL;
+ }
+ if (security_accepted & NEG_SIGN) {
+ if (!gensec_have_feature(gensec_security, GENSEC_FEATURE_SIGN)) {
+ DEBUG(1, ("Remote client wanted sign, but gensec refused\n"));
+ return NT_STATUS_ACCESS_DENIED;
}
- } else if (security_accepted & NEG_NONE) {
+ gensec_gssapi_state->sasl_protection |= NEG_SIGN;
+ }
+ if (security_accepted & NEG_NONE) {
gensec_gssapi_state->sasl_protection |= NEG_NONE;
- } else {
- DEBUG(1, ("Remote client does not support unprotected connections, but we failed to negotiate anything better"));
- return NT_STATUS_ACCESS_DENIED;
}
/* quirk: This changes the value that gensec_have_feature returns, to be that after SASL negotiation */
gensec_gssapi_state->sasl_state = STAGE_DONE;
if (gensec_have_feature(gensec_security, GENSEC_FEATURE_SEAL)) {
- DEBUG(5, ("SASL/GSSAPI Connection from client will be cryptographicly sealed\n"));
+ DEBUG(5, ("SASL/GSSAPI Connection from client will be cryptographically sealed\n"));
} else if (gensec_have_feature(gensec_security, GENSEC_FEATURE_SIGN)) {
- DEBUG(5, ("SASL/GSSAPI Connection from client will be cryptographicly signed\n"));
+ DEBUG(5, ("SASL/GSSAPI Connection from client will be cryptographically signed\n"));
} else {
DEBUG(5, ("SASL/GSSAPI Connection from client will have no cryptographic protection\n"));
}
if (gensec_security->want_features & GENSEC_FEATURE_SIGN_PKT_HEADER) {
input_message.length = pdu_length;
- input_message.value = whole_pdu;
+ input_message.value = discard_const(whole_pdu);
} else {
input_message.length = length;
- input_message.value = data;
+ input_message.value = discard_const(data);
}
input_token.length = sig->length;
if (feature & GENSEC_FEATURE_DCE_STYLE) {
return gensec_gssapi_state->got_flags & GSS_C_DCE_STYLE;
}
+ if (feature & GENSEC_FEATURE_NEW_SPNEGO) {
+ NTSTATUS status;
+
+ if (!(gensec_gssapi_state->got_flags & GSS_C_INTEG_FLAG)) {
+ return false;
+ }
+
+ if (gensec_setting_bool(gensec_security->settings, "gensec_gssapi", "force_new_spnego", false)) {
+ return true;
+ }
+ if (gensec_setting_bool(gensec_security->settings, "gensec_gssapi", "disable_new_spnego", false)) {
+ return false;
+ }
+
+ status = gensec_gssapi_init_lucid(gensec_gssapi_state);
+ if (!NT_STATUS_IS_OK(status)) {
+ return false;
+ }
+
+ if (gensec_gssapi_state->lucid->protocol == 1) {
+ return true;
+ }
+
+ return false;
+ }
/* We can always do async (rather than strict request/reply) packets. */
if (feature & GENSEC_FEATURE_ASYNC_REPLIES) {
return true;
OM_uint32 maj_stat, min_stat;
krb5_keyblock *subkey;
+ if (gensec_gssapi_state->sasl_state != STAGE_DONE) {
+ return NT_STATUS_NO_USER_SESSION_KEY;
+ }
+
if (gensec_gssapi_state->session_key.data) {
*session_key = gensec_gssapi_state->session_key;
return NT_STATUS_OK;
return NT_STATUS_NO_USER_SESSION_KEY;
}
- DEBUG(10, ("Got KRB5 session key of length %d\n",
- (int)KRB5_KEY_LENGTH(subkey)));
- gensec_gssapi_state->session_key = data_blob_talloc(gensec_gssapi_state,
- KRB5_KEY_DATA(subkey), KRB5_KEY_LENGTH(subkey));
+ DEBUG(10, ("Got KRB5 session key of length %d%s\n",
+ (int)KRB5_KEY_LENGTH(subkey),
+ (gensec_gssapi_state->sasl_state == STAGE_DONE)?" (done)":""));
+ *session_key = data_blob_talloc(gensec_gssapi_state,
+ KRB5_KEY_DATA(subkey), KRB5_KEY_LENGTH(subkey));
krb5_free_keyblock(gensec_gssapi_state->smb_krb5_context->krb5_context, subkey);
- *session_key = gensec_gssapi_state->session_key;
+ gensec_gssapi_state->session_key = *session_key;
dump_data_pw("KRB5 Session Key:\n", session_key->data, session_key->length);
return NT_STATUS_OK;
= talloc_get_type(gensec_security->private_data, struct gensec_gssapi_state);
struct auth_serversupplied_info *server_info = NULL;
struct auth_session_info *session_info = NULL;
- struct PAC_LOGON_INFO *logon_info;
OM_uint32 maj_stat, min_stat;
- gss_buffer_desc name_token;
gss_buffer_desc pac;
- krb5_keyblock *keyblock;
- time_t authtime;
- krb5_principal principal;
- char *principal_string;
DATA_BLOB pac_blob;
if ((gensec_gssapi_state->gss_oid->length != gss_mech_krb5->length)
mem_ctx = talloc_named(gensec_gssapi_state, 0, "gensec_gssapi_session_info context");
NT_STATUS_HAVE_NO_MEMORY(mem_ctx);
- maj_stat = gss_display_name (&min_stat,
- gensec_gssapi_state->client_name,
- &name_token,
- NULL);
- if (GSS_ERROR(maj_stat)) {
- DEBUG(1, ("GSS display_name failed: %s\n",
- gssapi_error_string(mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
- talloc_free(mem_ctx);
- return NT_STATUS_FOOBAR;
- }
-
- principal_string = talloc_strndup(mem_ctx,
- (const char *)name_token.value,
- name_token.length);
-
- gss_release_buffer(&min_stat, &name_token);
-
- if (!principal_string) {
- talloc_free(mem_ctx);
- return NT_STATUS_NO_MEMORY;
- }
-
maj_stat = gsskrb5_extract_authz_data_from_sec_context(&min_stat,
gensec_gssapi_state->gssapi_context,
KRB5_AUTHDATA_WIN2K_PAC,
* kind...
*/
if (pac_blob.length) {
- krb5_error_code ret;
- union netr_Validation validation;
-
- maj_stat = gsskrb5_extract_authtime_from_sec_context(&min_stat,
- gensec_gssapi_state->gssapi_context,
- &authtime);
-
- if (GSS_ERROR(maj_stat)) {
- DEBUG(1, ("gsskrb5_extract_authtime_from_sec_context: %s\n",
- gssapi_error_string(mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
+ nt_status = kerberos_pac_blob_to_server_info(mem_ctx,
+ pac_blob,
+ gensec_gssapi_state->smb_krb5_context->krb5_context,
+ &server_info);
+ if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(mem_ctx);
- return NT_STATUS_FOOBAR;
+ return nt_status;
}
+ } else {
+ gss_buffer_desc name_token;
+ char *principal_string;
- maj_stat = gsskrb5_extract_service_keyblock(&min_stat,
- gensec_gssapi_state->gssapi_context,
- &keyblock);
-
+ maj_stat = gss_display_name (&min_stat,
+ gensec_gssapi_state->client_name,
+ &name_token,
+ NULL);
if (GSS_ERROR(maj_stat)) {
- DEBUG(1, ("gsskrb5_copy_service_keyblock failed: %s\n",
+ DEBUG(1, ("GSS display_name failed: %s\n",
gssapi_error_string(mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
talloc_free(mem_ctx);
return NT_STATUS_FOOBAR;
- }
-
- ret = krb5_parse_name_flags(gensec_gssapi_state->smb_krb5_context->krb5_context,
- principal_string,
- KRB5_PRINCIPAL_PARSE_MUST_REALM,
- &principal);
- if (ret) {
- krb5_free_keyblock(gensec_gssapi_state->smb_krb5_context->krb5_context,
- keyblock);
- talloc_free(mem_ctx);
- return NT_STATUS_INVALID_PARAMETER;
}
- /* decode and verify the pac */
- nt_status = kerberos_pac_logon_info(mem_ctx, lp_iconv_convenience(gensec_security->lp_ctx), &logon_info, pac_blob,
- gensec_gssapi_state->smb_krb5_context->krb5_context,
- NULL, keyblock, principal, authtime, NULL);
- krb5_free_principal(gensec_gssapi_state->smb_krb5_context->krb5_context, principal);
- krb5_free_keyblock(gensec_gssapi_state->smb_krb5_context->krb5_context,
- keyblock);
-
- if (!NT_STATUS_IS_OK(nt_status)) {
- talloc_free(mem_ctx);
- return nt_status;
- }
- validation.sam3 = &logon_info->info3;
- nt_status = make_server_info_netlogon_validation(gensec_gssapi_state,
- NULL,
- 3, &validation,
- &server_info);
- if (!NT_STATUS_IS_OK(nt_status)) {
+ principal_string = talloc_strndup(mem_ctx,
+ (const char *)name_token.value,
+ name_token.length);
+
+ gss_release_buffer(&min_stat, &name_token);
+
+ if (!principal_string) {
talloc_free(mem_ctx);
- return nt_status;
+ return NT_STATUS_NO_MEMORY;
}
- } else if (!lp_parm_bool(gensec_security->lp_ctx, NULL, "gensec", "require_pac", false)) {
- DEBUG(1, ("Unable to find PAC, resorting to local user lookup: %s\n",
- gssapi_error_string(mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
- nt_status = sam_get_server_info_principal(mem_ctx, gensec_security->event_ctx, gensec_security->lp_ctx, principal_string,
- &server_info);
- if (!NT_STATUS_IS_OK(nt_status)) {
- talloc_free(mem_ctx);
- return nt_status;
+ if (gensec_security->auth_context &&
+ !gensec_setting_bool(gensec_security->settings, "gensec", "require_pac", false)) {
+ DEBUG(1, ("Unable to find PAC, resorting to local user lookup: %s\n",
+ gssapi_error_string(mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
+ nt_status = gensec_security->auth_context->get_server_info_principal(mem_ctx,
+ gensec_security->auth_context,
+ principal_string,
+ NULL,
+ &server_info);
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ talloc_free(mem_ctx);
+ return nt_status;
+ }
+ } else {
+ DEBUG(1, ("Unable to find PAC in ticket from %s, failing to allow access: %s\n",
+ principal_string,
+ gssapi_error_string(mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
+ return NT_STATUS_ACCESS_DENIED;
}
- } else {
- DEBUG(1, ("Unable to find PAC in ticket from %s, failing to allow access: %s\n",
- principal_string,
- gssapi_error_string(mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
- return NT_STATUS_ACCESS_DENIED;
}
/* references the server_info into the session_info */
- nt_status = auth_generate_session_info(mem_ctx, gensec_security->event_ctx, gensec_security->lp_ctx, server_info, &session_info);
+ nt_status = gensec_generate_session_info(mem_ctx, gensec_security,
+ server_info, &session_info);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(mem_ctx);
return nt_status;
DEBUG(10, ("gensec_gssapi: NO delegated credentials supplied by client\n"));
} else {
krb5_error_code ret;
+ const char *error_string;
+
DEBUG(10, ("gensec_gssapi: delegated credentials supplied by client\n"));
session_info->credentials = cli_credentials_init(session_info);
if (!session_info->credentials) {
return NT_STATUS_NO_MEMORY;
}
- cli_credentials_set_conf(session_info->credentials, gensec_security->lp_ctx);
+ cli_credentials_set_conf(session_info->credentials, gensec_security->settings->lp_ctx);
/* Just so we don't segfault trying to get at a username */
cli_credentials_set_anonymous(session_info->credentials);
ret = cli_credentials_set_client_gss_creds(session_info->credentials,
- gensec_security->event_ctx,
- gensec_security->lp_ctx,
+ gensec_security->settings->lp_ctx,
gensec_gssapi_state->delegated_cred_handle,
- CRED_SPECIFIED);
+ CRED_SPECIFIED, &error_string);
if (ret) {
talloc_free(mem_ctx);
+ DEBUG(2,("Failed to get gss creds: %s\n", error_string));
return NT_STATUS_NO_MEMORY;
}
return NT_STATUS_OK;
}
-size_t gensec_gssapi_sig_size(struct gensec_security *gensec_security, size_t data_size)
+static size_t gensec_gssapi_sig_size(struct gensec_security *gensec_security, size_t data_size)
{
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_krb5_lucid_context_v1_t *lucid = NULL;
+ NTSTATUS status;
if (gensec_gssapi_state->sig_size) {
return gensec_gssapi_state->sig_size;
gensec_gssapi_state->sig_size = 37;
}
- maj_stat = gss_krb5_export_lucid_sec_context(&min_stat,
- &gensec_gssapi_state->gssapi_context,
- 1, (void **)&lucid);
- if (maj_stat != GSS_S_COMPLETE) {
- return gensec_gssapi_state->sig_size;
- }
-
- if (lucid->version != 1) {
+ status = gensec_gssapi_init_lucid(gensec_gssapi_state);
+ if (!NT_STATUS_IS_OK(status)) {
return gensec_gssapi_state->sig_size;
}
- if (lucid->protocol == 1) {
+ if (gensec_gssapi_state->lucid->protocol == 1) {
if (gensec_gssapi_state->got_flags & GSS_C_CONF_FLAG) {
/*
* TODO: windows uses 76 here, but we don't know
} else {
gensec_gssapi_state->sig_size = 28;
}
- } else if (lucid->protocol == 0) {
- switch (lucid->rfc1964_kd.ctx_key.type) {
+ } else if (gensec_gssapi_state->lucid->protocol == 0) {
+ switch (gensec_gssapi_state->lucid->rfc1964_kd.ctx_key.type) {
case KEYTYPE_DES:
case KEYTYPE_ARCFOUR:
case KEYTYPE_ARCFOUR_56:
}
}
- gss_krb5_free_lucid_sec_context(&min_stat, lucid);
-
return gensec_gssapi_state->sig_size;
}