From 70f7c56168056c025c6931ce6e934203a5c2c9dc Mon Sep 17 00:00:00 2001 From: Stefan Metzmacher Date: Tue, 1 Mar 2005 15:19:18 +0000 Subject: [PATCH] r5601: add a gsskrb5 backend that uses lorikeet-heimdal's new gssapi with GSS_C_DCE_STYLE support, it's just a start and does work correctly yet metze (This used to be commit 87ff661703f467db3dfcb33084041c3e2951e0ee) --- source4/libads/config.m4 | 10 +- source4/libcli/auth/gensec.m4 | 4 + source4/libcli/auth/gensec.mk | 10 + source4/libcli/auth/gensec_gsskrb5.c | 584 +++++++++++++++++++++++++++++++++++ 4 files changed, 607 insertions(+), 1 deletion(-) create mode 100644 source4/libcli/auth/gensec_gsskrb5.c diff --git a/source4/libads/config.m4 b/source4/libads/config.m4 index 2ae82cd7455..57416113b35 100644 --- a/source4/libads/config.m4 +++ b/source4/libads/config.m4 @@ -519,7 +519,7 @@ if test x"$with_krb5_support" != x"no"; then fi AC_CACHE_CHECK([for krb5_princ_realm returns krb5_realm or krb5_data], - samba_cv_KRB5_PRINC_REALM_RETURNS_REALM,[ + samba_cv_KRB5_PRINC_REALM_RETURNS_REALM,[ AC_TRY_COMPILE([#include ], [krb5_context context;krb5_principal principal;krb5_realm realm; realm = *krb5_princ_realm(context, principal);], @@ -530,6 +530,14 @@ if test x"$with_krb5_support" != x"no"; then [Whether krb5_princ_realm returns krb5_realm or krb5_data]) fi + # TODO: check all gssapi headers for this + AC_CACHE_CHECK([for GSS_C_DCE_STYLE in gssapi.h], + samba_cv_GSS_C_DCE_STYLE,[ + AC_TRY_COMPILE([#include ], + [int flags = GSS_C_DCE_STYLE;], + samba_cv_GSS_C_DCE_STYLE=yes, + samba_cv_GSS_C_DCE_STYLE=no)]) + if test x"$ac_cv_lib_ext_krb5_krb5_mk_req_extended" = x"yes"; then AC_DEFINE(HAVE_KRB5,1,[Whether to have KRB5 support]) AC_MSG_CHECKING(whether KRB5 support is used) diff --git a/source4/libcli/auth/gensec.m4 b/source4/libcli/auth/gensec.m4 index 356f857d815..6ccf45ad7ea 100644 --- a/source4/libcli/auth/gensec.m4 +++ b/source4/libcli/auth/gensec.m4 @@ -1,8 +1,12 @@ SMB_MODULE_DEFAULT(gensec_krb5, NOT) SMB_MODULE_DEFAULT(gensec_gssapi, NOT) +SMB_MODULE_DEFAULT(gensec_gsskrb5, NOT) if test x"$SMB_EXT_LIB_ENABLE_KRB5" = x"YES"; then # enable this when krb5 is fully working SMB_MODULE_DEFAULT(gensec_krb5, STATIC) SMB_MODULE_DEFAULT(gensec_gssapi, STATIC) + if test x"$samba_cv_GSS_C_DCE_STYLE" = x"yes"; then + SMB_MODULE_DEFAULT(gensec_gsskrb5, STATIC) + fi fi diff --git a/source4/libcli/auth/gensec.mk b/source4/libcli/auth/gensec.mk index b66006ce4fc..e4559bb9729 100644 --- a/source4/libcli/auth/gensec.mk +++ b/source4/libcli/auth/gensec.mk @@ -34,6 +34,16 @@ REQUIRED_SUBSYSTEMS = EXT_LIB_KRB5 ################################################ ################################################ +# Start MODULE gensec_gsskrb5 +[MODULE::gensec_gsskrb5] +SUBSYSTEM = GENSEC +INIT_FUNCTION = gensec_gsskrb5_init +INIT_OBJ_FILES = libcli/auth/gensec_gsskrb5.o +REQUIRED_SUBSYSTEMS = EXT_LIB_KRB5 +# End MODULE gensec_gsskrb5 +################################################ + +################################################ # Start MODULE gensec_spnego [MODULE::gensec_spnego] SUBSYSTEM = GENSEC diff --git a/source4/libcli/auth/gensec_gsskrb5.c b/source4/libcli/auth/gensec_gsskrb5.c new file mode 100644 index 00000000000..77e077276bf --- /dev/null +++ b/source4/libcli/auth/gensec_gsskrb5.c @@ -0,0 +1,584 @@ +/* + Unix SMB/CIFS implementation. + + GSSAPI KRB5 backend for GENSEC + + Copyright (C) Andrew Bartlett 2004 + Copyright (C) Stefan Metzmacher 2005 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "includes.h" +#include "system/kerberos.h" +#include "system/time.h" +#include "libcli/auth/kerberos.h" +#include "auth/auth.h" + +static const gss_OID_desc gensec_gss_krb5_mechanism_oid_desc = + {9, (void *)discard_const_p(char, "\x2a\x86\x48\x86\xf7\x12\x01\x02\x02")}; + +enum GENSEC_GSSKRB5_STATE { + GENSEC_GSSKRB5_CLIENT_START, + GENSEC_GSSKRB5_CLIENT_MUTUAL_AUTH, + GENSEC_GSSKRB5_CLIENT_DCE_STYLE, + GENSEC_GSSKRB5_DONE +}; + +struct gensec_gsskrb5_state { + enum GENSEC_GSSKRB5_STATE state_position; + 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; +}; + +static int gensec_gsskrb5_destory(void *ptr) +{ + struct gensec_gsskrb5_state *gensec_gsskrb5_state = ptr; + OM_uint32 maj_stat, min_stat; + + if (gensec_gsskrb5_state->gssapi_context != GSS_C_NO_CONTEXT) { + maj_stat = gss_delete_sec_context (&min_stat, + &gensec_gsskrb5_state->gssapi_context, + GSS_C_NO_BUFFER); + } + + if (gensec_gsskrb5_state->server_name != GSS_C_NO_NAME) { + maj_stat = gss_release_name(&min_stat, &gensec_gsskrb5_state->server_name); + } + if (gensec_gsskrb5_state->client_name != GSS_C_NO_NAME) { + maj_stat = gss_release_name(&min_stat, &gensec_gsskrb5_state->client_name); + } + return 0; +} + +static NTSTATUS gensec_gsskrb5_start(struct gensec_security *gensec_security) +{ + struct gensec_gsskrb5_state *gensec_gsskrb5_state; + + gensec_gsskrb5_state = talloc(gensec_security, struct gensec_gsskrb5_state); + if (!gensec_gsskrb5_state) { + return NT_STATUS_NO_MEMORY; + } + + gensec_security->private_data = gensec_gsskrb5_state; + + gensec_gsskrb5_state->gssapi_context = GSS_C_NO_CONTEXT; + gensec_gsskrb5_state->server_name = GSS_C_NO_NAME; + gensec_gsskrb5_state->client_name = GSS_C_NO_NAME; + + talloc_set_destructor(gensec_gsskrb5_state, gensec_gsskrb5_destory); + + /* TODO: Fill in channel bindings */ + gensec_gsskrb5_state->input_chan_bindings = GSS_C_NO_CHANNEL_BINDINGS; + + gensec_gsskrb5_state->want_flags = GSS_C_MUTUAL_FLAG; + gensec_gsskrb5_state->got_flags = 0; + + if (gensec_security->want_features & GENSEC_FEATURE_SESSION_KEY) { + /* GSSAPI won't give us the session keys */ + return NT_STATUS_INVALID_PARAMETER; + } + if (gensec_security->want_features & GENSEC_FEATURE_SIGN) { + gensec_gsskrb5_state->want_flags |= GSS_C_INTEG_FLAG; + } + if (gensec_security->want_features & GENSEC_FEATURE_SEAL) { + gensec_gsskrb5_state->want_flags |= GSS_C_CONF_FLAG; + } + if (gensec_security->want_features & GENSEC_FEATURE_DCE_STYLE) { + gensec_gsskrb5_state->want_flags |= GSS_C_DCE_STYLE; + } + + return NT_STATUS_OK; +} + +static NTSTATUS gensec_gsskrb5_client_start(struct gensec_security *gensec_security) +{ + struct gensec_gsskrb5_state *gensec_gsskrb5_state; + NTSTATUS nt_status; + gss_buffer_desc name_token; + OM_uint32 maj_stat, min_stat; + + gss_OID_desc hostbased = {10, + (void *)discard_const_p(char, "\x2a\x86\x48\x86\xf7\x12" + "\x01\x02\x01\x04")}; + + nt_status = gensec_gsskrb5_start(gensec_security); + if (!NT_STATUS_IS_OK(nt_status)) { + return nt_status; + } + + gensec_gsskrb5_state = gensec_security->private_data; + + gensec_gsskrb5_state->state_position = GENSEC_GSSKRB5_CLIENT_START; + + name_token.value = talloc_asprintf(gensec_gsskrb5_state, "%s@%s", gensec_get_target_service(gensec_security), + gensec_get_target_hostname(gensec_security)); + DEBUG(0, ("name: %s\n", (char *)name_token.value)); + name_token.length = strlen(name_token.value); + + maj_stat = gss_import_name (&min_stat, + &name_token, + &hostbased, + &gensec_gsskrb5_state->server_name); + if (maj_stat) { + return NT_STATUS_UNSUCCESSFUL; + } + + return NT_STATUS_OK; +} + +/** + * Next state function for the GSSKRB5 GENSEC mechanism + * + * @param gensec_gsskrb5_state GSSAPI State + * @param out_mem_ctx The TALLOC_CTX for *out to be allocated on + * @param in The request, as a DATA_BLOB + * @param out The reply, as an talloc()ed DATA_BLOB, on *out_mem_ctx + * @return Error, MORE_PROCESSING_REQUIRED if a reply is sent, + * or NT_STATUS_OK if the user is authenticated. + */ + +static NTSTATUS gensec_gsskrb5_update(struct gensec_security *gensec_security, + TALLOC_CTX *out_mem_ctx, + const DATA_BLOB in, DATA_BLOB *out) +{ + struct gensec_gsskrb5_state *gensec_gsskrb5_state = gensec_security->private_data; + NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL; + OM_uint32 maj_stat, min_stat; + OM_uint32 min_stat2; + gss_buffer_desc input_token, output_token; + + *out = data_blob(NULL, 0); + + input_token.length = in.length; + input_token.value = in.data; + + switch (gensec_gsskrb5_state->state_position) { + case GENSEC_GSSKRB5_CLIENT_START: + { + maj_stat = gss_init_sec_context(&min_stat, + GSS_C_NO_CREDENTIAL, + &gensec_gsskrb5_state->gssapi_context, + gensec_gsskrb5_state->server_name, + discard_const_p(gss_OID_desc, &gensec_gss_krb5_mechanism_oid_desc), + gensec_gsskrb5_state->want_flags, + 0, + gensec_gsskrb5_state->input_chan_bindings, + &input_token, + NULL, + &output_token, + &gensec_gsskrb5_state->got_flags, /* ret flags */ + NULL); + *out = data_blob_talloc(out_mem_ctx, output_token.value, output_token.length); + if (out->length != output_token.length) { + gss_release_buffer(&min_stat2, &output_token); + return NT_STATUS_NO_MEMORY; + } + gss_release_buffer(&min_stat2, &output_token); + + if (maj_stat == GSS_S_COMPLETE) { + gensec_gsskrb5_state->state_position = GENSEC_GSSKRB5_DONE; + return NT_STATUS_OK; + } else if (maj_stat == GSS_S_CONTINUE_NEEDED) { + gensec_gsskrb5_state->state_position = GENSEC_GSSKRB5_CLIENT_MUTUAL_AUTH; + return NT_STATUS_MORE_PROCESSING_REQUIRED; + } else { + gss_buffer_desc msg1, msg2; + OM_uint32 msg_ctx = 0; + + msg1.value = NULL; + msg2.value = NULL; + gss_display_status(&min_stat2, maj_stat, GSS_C_GSS_CODE, + GSS_C_NULL_OID, &msg_ctx, &msg1); + gss_display_status(&min_stat2, min_stat, GSS_C_MECH_CODE, + GSS_C_NULL_OID, &msg_ctx, &msg2); + DEBUG(1, ("gensec_gsskrb5_update: %s : %s\n", (char *)msg1.value, (char *)msg2.value)); + gss_release_buffer(&min_stat2, &msg1); + gss_release_buffer(&min_stat2, &msg2); + + return nt_status; + } + break; + } + case GENSEC_GSSKRB5_CLIENT_MUTUAL_AUTH: + { + maj_stat = gss_init_sec_context(&min_stat, + GSS_C_NO_CREDENTIAL, + &gensec_gsskrb5_state->gssapi_context, + gensec_gsskrb5_state->server_name, + discard_const_p(gss_OID_desc, &gensec_gss_krb5_mechanism_oid_desc), + gensec_gsskrb5_state->want_flags, + 0, + gensec_gsskrb5_state->input_chan_bindings, + &input_token, + NULL, + &output_token, + &gensec_gsskrb5_state->got_flags, /* ret flags */ + NULL); + *out = data_blob_talloc(out_mem_ctx, output_token.value, output_token.length); + if (out->length != output_token.length) { + gss_release_buffer(&min_stat2, &output_token); + return NT_STATUS_NO_MEMORY; + } + gss_release_buffer(&min_stat2, &output_token); + + if (maj_stat == GSS_S_COMPLETE) { + if (gensec_gsskrb5_state->got_flags & GSS_C_DCE_STYLE) { + gensec_gsskrb5_state->state_position = GENSEC_GSSKRB5_CLIENT_DCE_STYLE; + return NT_STATUS_MORE_PROCESSING_REQUIRED; + } + gensec_gsskrb5_state->state_position = GENSEC_GSSKRB5_DONE; + return NT_STATUS_OK; + } else if (maj_stat == GSS_S_CONTINUE_NEEDED) { + gensec_gsskrb5_state->state_position = GENSEC_GSSKRB5_CLIENT_DCE_STYLE; + return NT_STATUS_MORE_PROCESSING_REQUIRED; + } else { + gss_buffer_desc msg1, msg2; + OM_uint32 msg_ctx = 0; + + msg1.value = NULL; + msg2.value = NULL; + gss_display_status(&min_stat2, maj_stat, GSS_C_GSS_CODE, + GSS_C_NULL_OID, &msg_ctx, &msg1); + gss_display_status(&min_stat2, min_stat, GSS_C_MECH_CODE, + GSS_C_NULL_OID, &msg_ctx, &msg2); + DEBUG(1, ("gensec_gsskrb5_update: %s : %s\n", (char *)msg1.value, (char *)msg2.value)); + gss_release_buffer(&min_stat2, &msg1); + gss_release_buffer(&min_stat2, &msg2); + + return nt_status; + } + break; + } + case GENSEC_GSSKRB5_CLIENT_DCE_STYLE: + { + gensec_gsskrb5_state->state_position = GENSEC_GSSKRB5_DONE; + return NT_STATUS_OK; + } + case GENSEC_GSSKRB5_DONE: + { + return NT_STATUS_OK; + } + default: + return NT_STATUS_INVALID_PARAMETER; + } + + return NT_STATUS_INVALID_PARAMETER; +} + +static NTSTATUS gensec_gsskrb5_wrap(struct gensec_security *gensec_security, + TALLOC_CTX *mem_ctx, + const DATA_BLOB *in, + DATA_BLOB *out) +{ + struct gensec_gsskrb5_state *gensec_gsskrb5_state = gensec_security->private_data; + OM_uint32 maj_stat, min_stat; + gss_buffer_desc input_token, output_token; + int conf_state; + input_token.length = in->length; + input_token.value = in->data; + + maj_stat = gss_wrap(&min_stat, + gensec_gsskrb5_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)) { + return NT_STATUS_ACCESS_DENIED; + } + *out = data_blob_talloc(mem_ctx, output_token.value, output_token.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; +} + +static NTSTATUS gensec_gsskrb5_unwrap(struct gensec_security *gensec_security, + TALLOC_CTX *mem_ctx, + const DATA_BLOB *in, + DATA_BLOB *out) +{ + struct gensec_gsskrb5_state *gensec_gsskrb5_state = gensec_security->private_data; + OM_uint32 maj_stat, min_stat; + gss_buffer_desc input_token, output_token; + int conf_state; + gss_qop_t qop_state; + input_token.length = in->length; + input_token.value = in->data; + + maj_stat = gss_unwrap(&min_stat, + gensec_gsskrb5_state->gssapi_context, + &input_token, + &output_token, + &conf_state, + &qop_state); + if (GSS_ERROR(maj_stat)) { + return NT_STATUS_ACCESS_DENIED; + } + *out = data_blob_talloc(mem_ctx, output_token.value, output_token.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; +} + +static size_t gensec_gsskrb5_sig_size(struct gensec_security *gensec_security) +{ + /* not const but work for DCERPC packets and arcfour */ + return 45; +} + +static NTSTATUS gensec_gsskrb5_seal_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, + DATA_BLOB *sig) +{ + struct gensec_gsskrb5_state *gensec_gsskrb5_state = gensec_security->private_data; + OM_uint32 maj_stat, min_stat; + gss_buffer_desc input_token, output_token; + int conf_state; + ssize_t sig_length = 0; + + input_token.length = length; + input_token.value = data; + + maj_stat = gss_wrap(&min_stat, + gensec_gsskrb5_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)) { + return NT_STATUS_ACCESS_DENIED; + } + + if (output_token.length < length) { + return NT_STATUS_INTERNAL_ERROR; + } + + sig_length = 45; + + memcpy(data, ((uint8_t *)output_token.value) + sig_length, length); + *sig = data_blob_talloc(mem_ctx, (uint8_t *)output_token.value, sig_length); + +DEBUG(0,("gensec_gsskrb5_seal_packet: siglen: %d inlen: %d, wrap_len: %d\n", sig->length, length, output_token.length - sig_length)); +dump_data(0,sig->data, sig->length); +dump_data(0,data, length); +dump_data(0,((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; +} + +static NTSTATUS gensec_gsskrb5_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, + DATA_BLOB *sig) +{ + struct gensec_gsskrb5_state *gensec_gsskrb5_state = gensec_security->private_data; + OM_uint32 maj_stat, min_stat; + gss_buffer_desc input_token, output_token; + int conf_state; + gss_qop_t qop_state; + DATA_BLOB in; + +DEBUG(0,("gensec_gsskrb5_unseal_packet: siglen: %d\n", sig->length)); +dump_data(0,sig->data, sig->length); + + in = data_blob_talloc(mem_ctx, 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_gsskrb5_state->gssapi_context, + &input_token, + &output_token, + &conf_state, + &qop_state); + if (GSS_ERROR(maj_stat)) { + return NT_STATUS_ACCESS_DENIED; + } + + if (output_token.length != length) { + return NT_STATUS_INTERNAL_ERROR; + } + + 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; +} + +static NTSTATUS gensec_gsskrb5_sign_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, + DATA_BLOB *sig) +{ + struct gensec_gsskrb5_state *gensec_gsskrb5_state = gensec_security->private_data; + OM_uint32 maj_stat, min_stat; + gss_buffer_desc input_token, output_token; + int conf_state; + ssize_t sig_length = 0; + + input_token.length = length; + input_token.value = data; + + maj_stat = gss_wrap(&min_stat, + gensec_gsskrb5_state->gssapi_context, + 0, + GSS_C_QOP_DEFAULT, + &input_token, + &conf_state, + &output_token); + if (GSS_ERROR(maj_stat)) { + return NT_STATUS_ACCESS_DENIED; + } + + if (output_token.length < length) { + return NT_STATUS_INTERNAL_ERROR; + } + + sig_length = 45; + + /*memcpy(data, ((uint8_t *)output_token.value) + sig_length, length);*/ + *sig = data_blob_talloc(mem_ctx, (uint8_t *)output_token.value, sig_length); + +DEBUG(0,("gensec_gsskrb5_sign_packet: siglen: %d\n", sig->length)); +dump_data(0,sig->data, sig->length); + + gss_release_buffer(&min_stat, &output_token); + + return NT_STATUS_OK; +} + +static NTSTATUS gensec_gsskrb5_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) +{ + struct gensec_gsskrb5_state *gensec_gsskrb5_state = gensec_security->private_data; + OM_uint32 maj_stat, min_stat; + gss_buffer_desc input_token, output_token; + int conf_state; + gss_qop_t qop_state; + DATA_BLOB in; + +DEBUG(0,("gensec_gsskrb5_check_packet: siglen: %d\n", sig->length)); +dump_data(0,sig->data, sig->length); + + in = data_blob_talloc(mem_ctx, 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_gsskrb5_state->gssapi_context, + &input_token, + &output_token, + &conf_state, + &qop_state); + if (GSS_ERROR(maj_stat)) { + return NT_STATUS_ACCESS_DENIED; + } + + if (output_token.length != length) { + return NT_STATUS_INTERNAL_ERROR; + } + + /*memcpy(data, output_token.value, length);*/ + + gss_release_buffer(&min_stat, &output_token); + + return NT_STATUS_OK; +} + +static BOOL gensec_gsskrb5_have_feature(struct gensec_security *gensec_security, + uint32_t feature) +{ + struct gensec_gsskrb5_state *gensec_gsskrb5_state = gensec_security->private_data; + if (feature & GENSEC_FEATURE_SIGN) { + return gensec_gsskrb5_state->got_flags & GSS_C_INTEG_FLAG; + } + if (feature & GENSEC_FEATURE_SEAL) { + return gensec_gsskrb5_state->got_flags & GSS_C_CONF_FLAG; + } + return False; +} + +static const struct gensec_security_ops gensec_gsskrb5_security_ops = { + .name = "gsskrb5", + .auth_type = DCERPC_AUTH_TYPE_KRB5, + .oid = GENSEC_OID_KERBEROS5, + .client_start = gensec_gsskrb5_client_start, + .update = gensec_gsskrb5_update, + .sig_size = gensec_gsskrb5_sig_size, + .sign_packet = gensec_gsskrb5_sign_packet, + .check_packet = gensec_gsskrb5_check_packet, + .seal_packet = gensec_gsskrb5_seal_packet, + .unseal_packet = gensec_gsskrb5_unseal_packet, + .wrap = gensec_gsskrb5_wrap, + .unwrap = gensec_gsskrb5_unwrap, + .have_feature = gensec_gsskrb5_have_feature, + .enabled = False +}; + +NTSTATUS gensec_gsskrb5_init(void) +{ + NTSTATUS ret; + + ret = gensec_register(&gensec_gsskrb5_security_ops); + if (!NT_STATUS_IS_OK(ret)) { + DEBUG(0,("Failed to register '%s' gensec backend!\n", + gensec_gsskrb5_security_ops.name)); + return ret; + } + + return ret; +} -- 2.11.4.GIT