#include "auth/kerberos/kerberos.h"
#include "librpc/gen_ndr/krb5pac.h"
#include "auth/auth.h"
-#include "lib/ldb/include/ldb.h"
+#include <ldb.h>
#include "auth/auth_sam.h"
#include "librpc/rpc/dcerpc.h"
#include "auth/credentials/credentials.h"
#include "auth/credentials/credentials_krb5.h"
#include "auth/gensec/gensec.h"
#include "auth/gensec/gensec_proto.h"
+#include "auth/gensec/gensec_toplevel_proto.h"
#include "param/param.h"
#include "auth/session_proto.h"
#include <gssapi/gssapi.h>
#include <gssapi/gssapi_krb5.h>
+#include <gssapi/gssapi_spnego.h>
#include "auth/gensec/gensec_gssapi.h"
+#include "lib/util/util_net.h"
+
+_PUBLIC_ NTSTATUS gensec_gssapi_init(void);
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 char *gssapi_error_string(TALLOC_CTX *mem_ctx,
- OM_uint32 maj_stat, OM_uint32 min_stat,
- const gss_OID mech)
-{
- OM_uint32 disp_min_stat, disp_maj_stat;
- gss_buffer_desc maj_error_message;
- gss_buffer_desc min_error_message;
- char *maj_error_string, *min_error_string;
- OM_uint32 msg_ctx = 0;
-
- char *ret;
-
- maj_error_message.value = NULL;
- min_error_message.value = NULL;
- maj_error_message.length = 0;
- min_error_message.length = 0;
-
- disp_maj_stat = gss_display_status(&disp_min_stat, maj_stat, GSS_C_GSS_CODE,
- mech, &msg_ctx, &maj_error_message);
- disp_maj_stat = gss_display_status(&disp_min_stat, min_stat, GSS_C_MECH_CODE,
- mech, &msg_ctx, &min_error_message);
-
- maj_error_string = talloc_strndup(mem_ctx, (char *)maj_error_message.value, maj_error_message.length);
-
- min_error_string = talloc_strndup(mem_ctx, (char *)min_error_message.value, min_error_message.length);
-
- ret = talloc_asprintf(mem_ctx, "%s: %s", maj_error_string, min_error_string);
-
- talloc_free(maj_error_string);
- talloc_free(min_error_string);
-
- gss_release_buffer(&disp_min_stat, &maj_error_message);
- gss_release_buffer(&disp_min_stat, &min_error_message);
-
- return ret;
-}
-
-
static int gensec_gssapi_destructor(struct gensec_gssapi_state *gensec_gssapi_state)
{
OM_uint32 maj_stat, min_stat;
{
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;
- gensec_gssapi_state->lucid = NULL;
/* 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;
- ret = gsskrb5_set_send_to_kdc(&send_to_kdc);
+ 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;
+ }
+
+ 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;
+ if (cli_credentials_get_impersonate_principal(creds)) {
+ gensec_gssapi_state->want_flags &= ~(GSS_C_DELEG_FLAG|GSS_C_DELEG_POLICY_FLAG);
+ }
- 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"));
}
gss_release_buffer(&min_stat2, &output_token);
return NT_STATUS_MORE_PROCESSING_REQUIRED;
+ } else if (maj_stat == GSS_S_CONTEXT_EXPIRED) {
+ gss_cred_id_t creds;
+ gss_name_t name;
+ gss_buffer_desc buffer;
+ OM_uint32 lifetime = 0;
+ gss_cred_usage_t usage;
+ const char *role = NULL;
+ DEBUG(0, ("GSS %s Update(krb5)(%d) Update failed, credentials expired during GSSAPI handshake!\n",
+ role,
+ gensec_gssapi_state->gss_exchange_count));
+
+
+ switch (gensec_security->gensec_role) {
+ case GENSEC_CLIENT:
+ creds = gensec_gssapi_state->client_cred->creds;
+ role = "client";
+ case GENSEC_SERVER:
+ creds = gensec_gssapi_state->server_cred->creds;
+ role = "server";
+ }
+
+ maj_stat = gss_inquire_cred(&min_stat,
+ creds,
+ &name, &lifetime, &usage, NULL);
+
+ if (maj_stat == GSS_S_COMPLETE) {
+ const char *usage_string;
+ switch (usage) {
+ case GSS_C_BOTH:
+ usage_string = "GSS_C_BOTH";
+ break;
+ case GSS_C_ACCEPT:
+ usage_string = "GSS_C_ACCEPT";
+ break;
+ case GSS_C_INITIATE:
+ usage_string = "GSS_C_INITIATE";
+ break;
+ }
+ maj_stat = gss_display_name(&min_stat, name, &buffer, NULL);
+ if (maj_stat) {
+ buffer.value = NULL;
+ buffer.length = 0;
+ }
+ if (lifetime > 0) {
+ DEBUG(0, ("GSSAPI gss_inquire_cred indicates expiry of %*.*s in %u sec for %s\n",
+ (int)buffer.length, (int)buffer.length, (char *)buffer.value,
+ lifetime, usage_string));
+ } else {
+ DEBUG(0, ("GSSAPI gss_inquire_cred indicates %*.*s has already expired for %s\n",
+ (int)buffer.length, (int)buffer.length, (char *)buffer.value,
+ usage_string));
+ }
+ gss_release_buffer(&min_stat, &buffer);
+ gss_release_name(&min_stat, &name);
+ } else if (maj_stat != GSS_S_COMPLETE) {
+ DEBUG(0, ("inquiry of credential lifefime via GSSAPI gss_inquire_cred failed: %s\n",
+ gssapi_error_string(out_mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
+ }
+ return NT_STATUS_INVALID_PARAMETER;
} 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"));
}
}
static NTSTATUS gensec_gssapi_unseal_packet(struct gensec_security *gensec_security,
- TALLOC_CTX *mem_ctx,
uint8_t *data, size_t length,
const uint8_t *whole_pdu, size_t pdu_length,
const DATA_BLOB *sig)
dump_data_pw("gensec_gssapi_unseal_packet: sig\n", sig->data, sig->length);
- in = data_blob_talloc(mem_ctx, NULL, sig->length + length);
+ in = data_blob_talloc(gensec_security, NULL, sig->length + length);
memcpy(in.data, sig->data, sig->length);
memcpy(in.data + sig->length, data, length);
&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",
- gssapi_error_string(mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
+ error_string));
+ talloc_free(error_string);
return NT_STATUS_ACCESS_DENIED;
}
}
static NTSTATUS gensec_gssapi_check_packet(struct gensec_security *gensec_security,
- TALLOC_CTX *mem_ctx,
const uint8_t *data, size_t length,
const uint8_t *whole_pdu, size_t pdu_length,
const DATA_BLOB *sig)
&input_token,
&qop_state);
if (GSS_ERROR(maj_stat)) {
- DEBUG(1, ("GSS VerifyMic failed: %s\n",
- gssapi_error_string(mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
+ 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;
}
return false;
}
- if (lp_parm_bool(gensec_security->lp_ctx, NULL, "gensec_gssapi", "force_new_spnego", false)) {
+ if (gensec_setting_bool(gensec_security->settings, "gensec_gssapi", "force_new_spnego", false)) {
return true;
}
- if (lp_parm_bool(gensec_security->lp_ctx, NULL, "gensec_gssapi", "disable_new_spnego", false)) {
+ if (gensec_setting_bool(gensec_security->settings, "gensec_gssapi", "disable_new_spnego", false)) {
return false;
}
* This breaks all the abstractions, but what do you expect...
*/
static NTSTATUS gensec_gssapi_session_key(struct gensec_security *gensec_security,
+ TALLOC_CTX *mem_ctx,
DATA_BLOB *session_key)
{
struct gensec_gssapi_state *gensec_gssapi_state
OM_uint32 maj_stat, min_stat;
krb5_keyblock *subkey;
- if (gensec_gssapi_state->session_key.data) {
- *session_key = gensec_gssapi_state->session_key;
- return NT_STATUS_OK;
+ if (gensec_gssapi_state->sasl_state != STAGE_DONE) {
+ return NT_STATUS_NO_USER_SESSION_KEY;
}
maj_stat = gsskrb5_get_subkey(&min_stat,
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,
+ *session_key = data_blob_talloc(mem_ctx,
KRB5_KEY_DATA(subkey), KRB5_KEY_LENGTH(subkey));
krb5_free_keyblock(gensec_gssapi_state->smb_krb5_context->krb5_context, subkey);
- if (gensec_gssapi_state->sasl_state == STAGE_DONE) {
- /* only cache in the done stage */
- gensec_gssapi_state->session_key = *session_key;
- }
dump_data_pw("KRB5 Session Key:\n", session_key->data, session_key->length);
return NT_STATUS_OK;
* this session. This uses either the PAC (if present) or a local
* database lookup */
static NTSTATUS gensec_gssapi_session_info(struct gensec_security *gensec_security,
+ TALLOC_CTX *mem_ctx_out,
struct auth_session_info **_session_info)
{
NTSTATUS nt_status;
TALLOC_CTX *mem_ctx;
struct gensec_gssapi_state *gensec_gssapi_state
= talloc_get_type(gensec_security->private_data, struct gensec_gssapi_state);
- struct auth_serversupplied_info *server_info = NULL;
+ struct auth_user_info_dc *user_info_dc = NULL;
struct auth_session_info *session_info = NULL;
OM_uint32 maj_stat, min_stat;
- gss_buffer_desc pac;
DATA_BLOB pac_blob;
+ struct PAC_SIGNATURE_DATA *pac_srv_sig = NULL;
+ struct PAC_SIGNATURE_DATA *pac_kdc_sig = NULL;
if ((gensec_gssapi_state->gss_oid->length != gss_mech_krb5->length)
|| (memcmp(gensec_gssapi_state->gss_oid->elements, gss_mech_krb5->elements,
return NT_STATUS_INVALID_PARAMETER;
}
- mem_ctx = talloc_named(gensec_gssapi_state, 0, "gensec_gssapi_session_info context");
+ mem_ctx = talloc_named(mem_ctx_out, 0, "gensec_gssapi_session_info context");
NT_STATUS_HAVE_NO_MEMORY(mem_ctx);
- maj_stat = gsskrb5_extract_authz_data_from_sec_context(&min_stat,
- gensec_gssapi_state->gssapi_context,
- KRB5_AUTHDATA_WIN2K_PAC,
- &pac);
-
-
- if (maj_stat == 0) {
- pac_blob = data_blob_talloc(mem_ctx, pac.value, pac.length);
- gss_release_buffer(&min_stat, &pac);
-
- } else {
- pac_blob = data_blob(NULL, 0);
- }
+ nt_status = gssapi_obtain_pac_blob(mem_ctx, gensec_gssapi_state->gssapi_context,
+ gensec_gssapi_state->client_name,
+ &pac_blob);
/* IF we have the PAC - otherwise we need to get this
* data from elsewere - local ldb, or (TODO) lookup of some
* kind...
*/
- if (pac_blob.length) {
- nt_status = kerberos_pac_blob_to_server_info(mem_ctx,
- lp_iconv_convenience(gensec_security->lp_ctx),
- pac_blob,
- gensec_gssapi_state->smb_krb5_context->krb5_context,
- &server_info);
+ if (NT_STATUS_IS_OK(nt_status)) {
+ pac_srv_sig = talloc(mem_ctx, struct PAC_SIGNATURE_DATA);
+ if (!pac_srv_sig) {
+ talloc_free(mem_ctx);
+ return NT_STATUS_NO_MEMORY;
+ }
+ pac_kdc_sig = talloc(mem_ctx, struct PAC_SIGNATURE_DATA);
+ if (!pac_kdc_sig) {
+ talloc_free(mem_ctx);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ nt_status = kerberos_pac_blob_to_user_info_dc(mem_ctx,
+ pac_blob,
+ gensec_gssapi_state->smb_krb5_context->krb5_context,
+ &user_info_dc,
+ pac_srv_sig,
+ pac_kdc_sig);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(mem_ctx);
return nt_status;
return NT_STATUS_NO_MEMORY;
}
- if (!lp_parm_bool(gensec_security->lp_ctx, NULL, "gensec", "require_pac", false)) {
+ 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 = sam_get_server_info_principal(mem_ctx, gensec_security->event_ctx,
- gensec_security->lp_ctx, principal_string,
- &server_info);
+ nt_status = gensec_security->auth_context->get_user_info_dc_principal(mem_ctx,
+ gensec_security->auth_context,
+ principal_string,
+ NULL,
+ &user_info_dc);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(mem_ctx);
}
}
- /* 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);
+ /* references the user_info_dc into the session_info */
+ nt_status = gensec_generate_session_info(mem_ctx, gensec_security,
+ user_info_dc, &session_info);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(mem_ctx);
return nt_status;
}
- nt_status = gensec_gssapi_session_key(gensec_security, &session_info->session_key);
+ nt_status = gensec_gssapi_session_key(gensec_security, session_info, &session_info->session_key);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(mem_ctx);
return nt_status;
}
+ /* Allow torture tests to check the PAC signatures */
+ if (session_info->torture) {
+ session_info->torture->pac_srv_sig = talloc_steal(session_info->torture, pac_srv_sig);
+ session_info->torture->pac_kdc_sig = talloc_steal(session_info->torture, pac_kdc_sig);
+ }
+
if (!(gensec_gssapi_state->got_flags & GSS_C_DELEG_FLAG)) {
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;
}
/* It has been taken from this place... */
gensec_gssapi_state->delegated_cred_handle = GSS_C_NO_CREDENTIAL;
}
- talloc_steal(gensec_gssapi_state, session_info);
+ *_session_info = talloc_steal(mem_ctx_out, session_info);
talloc_free(mem_ctx);
- *_session_info = session_info;
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);
git.samba.org / samba.git / blobdiff