OM_uint32 GSSAPI_CALLCONV
_gsskrb5_delete_sec_context(OM_uint32 * minor_status,
gss_ctx_id_t * context_handle,
gss_buffer_t output_token)
{
krb5_context context;
gsskrb5_ctx ctx;
GSSAPI_KRB5_INIT (&context);
*minor_status = 0;
if (output_token) {
output_token->length = 0;
output_token->value = NULL;
}
if (*context_handle == GSS_C_NO_CONTEXT)
return GSS_S_COMPLETE;
ctx = (gsskrb5_ctx) *context_handle;
*context_handle = GSS_C_NO_CONTEXT;
HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex);
krb5_auth_con_free (context, ctx->auth_context);
krb5_auth_con_free (context, ctx->deleg_auth_context);
if (ctx->kcred)
krb5_free_creds(context, ctx->kcred);
if(ctx->source)
krb5_free_principal (context, ctx->source);
if(ctx->target)
krb5_free_principal (context, ctx->target);
if (ctx->ticket)
krb5_free_ticket (context, ctx->ticket);
if(ctx->order)
_gssapi_msg_order_destroy(&ctx->order);
if (ctx->service_keyblock)
krb5_free_keyblock (context, ctx->service_keyblock);
krb5_data_free(&ctx->fwd_data);
if (ctx->crypto)
krb5_crypto_destroy(context, ctx->crypto);
HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex);
HEIMDAL_MUTEX_destroy(&ctx->ctx_id_mutex);
memset(ctx, 0, sizeof(*ctx));
free (ctx);
return GSS_S_COMPLETE;
}
static int
test_seq(int t, OM_uint32 flags, OM_uint32 start_seq,
OM_uint32 *pattern, int pattern_len)
{
struct gss_msg_order *o;
OM_uint32 maj_stat, min_stat;
int i;
maj_stat = _gssapi_msg_order_create(&min_stat, &o, flags,
start_seq, 20, 0);
if (maj_stat)
err(1, "create: %d %d", maj_stat, min_stat);
for (i = 0; i < pattern_len; i++) {
maj_stat = _gssapi_msg_order_check(o, pattern[i]);
if (maj_stat)
return maj_stat;
}
_gssapi_msg_order_destroy(&o);
return 0;
}
OM_uint32
gss_import_sec_context (
OM_uint32 * minor_status,
const gss_buffer_t interprocess_token,
gss_ctx_id_t * context_handle
)
{
OM_uint32 ret = GSS_S_FAILURE;
krb5_error_code kret;
krb5_storage *sp;
krb5_auth_context ac;
krb5_address local, remote;
krb5_address *localp, *remotep;
krb5_data data;
gss_buffer_desc buffer;
krb5_keyblock keyblock;
int32_t tmp;
int32_t flags;
OM_uint32 minor;
int is_cfx = 0;
GSSAPI_KRB5_INIT ();
localp = remotep = NULL;
sp = krb5_storage_from_mem (interprocess_token->value,
interprocess_token->length);
if (sp == NULL) {
*minor_status = ENOMEM;
return GSS_S_FAILURE;
}
*context_handle = malloc(sizeof(**context_handle));
if (*context_handle == NULL) {
*minor_status = ENOMEM;
krb5_storage_free (sp);
return GSS_S_FAILURE;
}
memset (*context_handle, 0, sizeof(**context_handle));
HEIMDAL_MUTEX_init(&(*context_handle)->ctx_id_mutex);
kret = krb5_auth_con_init (gssapi_krb5_context,
&(*context_handle)->auth_context);
if (kret) {
gssapi_krb5_set_error_string ();
*minor_status = kret;
ret = GSS_S_FAILURE;
goto failure;
}
/* flags */
*minor_status = 0;
if (krb5_ret_int32 (sp, &flags) != 0)
goto failure;
/* retrieve the auth context */
ac = (*context_handle)->auth_context;
krb5_ret_int32 (sp, &ac->flags);
if (flags & SC_LOCAL_ADDRESS) {
if (krb5_ret_address (sp, localp = &local) != 0)
goto failure;
}
if (flags & SC_REMOTE_ADDRESS) {
if (krb5_ret_address (sp, remotep = &remote) != 0)
goto failure;
}
krb5_auth_con_setaddrs (gssapi_krb5_context, ac, localp, remotep);
if (localp)
krb5_free_address (gssapi_krb5_context, localp);
if (remotep)
krb5_free_address (gssapi_krb5_context, remotep);
localp = remotep = NULL;
if (krb5_ret_int16 (sp, &ac->local_port) != 0)
goto failure;
if (krb5_ret_int16 (sp, &ac->remote_port) != 0)
goto failure;
if (flags & SC_KEYBLOCK) {
if (krb5_ret_keyblock (sp, &keyblock) != 0)
goto failure;
krb5_auth_con_setkey (gssapi_krb5_context, ac, &keyblock);
krb5_free_keyblock_contents (gssapi_krb5_context, &keyblock);
}
if (flags & SC_LOCAL_SUBKEY) {
if (krb5_ret_keyblock (sp, &keyblock) != 0)
goto failure;
krb5_auth_con_setlocalsubkey (gssapi_krb5_context, ac, &keyblock);
krb5_free_keyblock_contents (gssapi_krb5_context, &keyblock);
}
if (flags & SC_REMOTE_SUBKEY) {
if (krb5_ret_keyblock (sp, &keyblock) != 0)
goto failure;
krb5_auth_con_setremotesubkey (gssapi_krb5_context, ac, &keyblock);
krb5_free_keyblock_contents (gssapi_krb5_context, &keyblock);
}
if (krb5_ret_int32 (sp, &ac->local_seqnumber))
goto failure;
if (krb5_ret_int32 (sp, &ac->remote_seqnumber))
goto failure;
if (krb5_ret_int32 (sp, &tmp) != 0)
goto failure;
ac->keytype = tmp;
if (krb5_ret_int32 (sp, &tmp) != 0)
goto failure;
ac->cksumtype = tmp;
/* names */
if (krb5_ret_data (sp, &data))
goto failure;
buffer.value = data.data;
buffer.length = data.length;
ret = gss_import_name (minor_status, &buffer, GSS_C_NT_EXPORT_NAME,
&(*context_handle)->source);
if (ret) {
ret = gss_import_name (minor_status, &buffer, GSS_C_NO_OID,
&(*context_handle)->source);
if (ret) {
krb5_data_free (&data);
goto failure;
}
}
krb5_data_free (&data);
if (krb5_ret_data (sp, &data) != 0)
goto failure;
buffer.value = data.data;
buffer.length = data.length;
ret = gss_import_name (minor_status, &buffer, GSS_C_NT_EXPORT_NAME,
&(*context_handle)->target);
if (ret) {
ret = gss_import_name (minor_status, &buffer, GSS_C_NO_OID,
&(*context_handle)->target);
if (ret) {
krb5_data_free (&data);
goto failure;
}
}
krb5_data_free (&data);
if (krb5_ret_int32 (sp, &tmp))
goto failure;
(*context_handle)->flags = tmp;
if (krb5_ret_int32 (sp, &tmp))
goto failure;
(*context_handle)->more_flags = tmp;
if (krb5_ret_int32 (sp, &tmp) == 0)
(*context_handle)->lifetime = tmp;
else
(*context_handle)->lifetime = GSS_C_INDEFINITE;
gsskrb5_is_cfx(*context_handle, &is_cfx);
ret = _gssapi_msg_order_create(minor_status,
&(*context_handle)->order,
_gssapi_msg_order_f((*context_handle)->flags),
0, 0, is_cfx);
if (ret)
goto failure;
krb5_storage_free (sp);
return GSS_S_COMPLETE;
failure:
krb5_auth_con_free (gssapi_krb5_context,
(*context_handle)->auth_context);
if ((*context_handle)->source != NULL)
gss_release_name(&minor, &(*context_handle)->source);
if ((*context_handle)->target != NULL)
gss_release_name(&minor, &(*context_handle)->target);
if (localp)
krb5_free_address (gssapi_krb5_context, localp);
if (remotep)
krb5_free_address (gssapi_krb5_context, remotep);
if((*context_handle)->order)
_gssapi_msg_order_destroy(&(*context_handle)->order);
HEIMDAL_MUTEX_destroy(&(*context_handle)->ctx_id_mutex);
krb5_storage_free (sp);
free (*context_handle);
*context_handle = GSS_C_NO_CONTEXT;
return ret;
}
OM_uint32 GSSAPI_CALLCONV
_gsskrb5_import_sec_context (
OM_uint32 * minor_status,
const gss_buffer_t interprocess_token,
gss_ctx_id_t * context_handle
)
{
OM_uint32 ret = GSS_S_FAILURE;
krb5_context context;
krb5_error_code kret;
krb5_storage *sp;
krb5_auth_context ac;
krb5_address local, remote;
krb5_address *localp, *remotep;
krb5_data data;
gss_buffer_desc buffer;
krb5_keyblock keyblock;
int32_t flags, tmp;
gsskrb5_ctx ctx;
gss_name_t name;
GSSAPI_KRB5_INIT (&context);
*context_handle = GSS_C_NO_CONTEXT;
localp = remotep = NULL;
sp = krb5_storage_from_mem (interprocess_token->value,
interprocess_token->length);
if (sp == NULL) {
*minor_status = ENOMEM;
return GSS_S_FAILURE;
}
ctx = calloc(1, sizeof(*ctx));
if (ctx == NULL) {
*minor_status = ENOMEM;
krb5_storage_free (sp);
return GSS_S_FAILURE;
}
HEIMDAL_MUTEX_init(&ctx->ctx_id_mutex);
kret = krb5_auth_con_init (context,
&ctx->auth_context);
if (kret) {
*minor_status = kret;
ret = GSS_S_FAILURE;
goto failure;
}
/* flags */
*minor_status = 0;
if (krb5_ret_int32 (sp, &flags) != 0)
goto failure;
/* retrieve the auth context */
ac = ctx->auth_context;
if (krb5_ret_int32 (sp, &tmp) != 0)
goto failure;
ac->flags = tmp;
if (flags & SC_LOCAL_ADDRESS) {
if (krb5_ret_address (sp, localp = &local) != 0)
goto failure;
}
if (flags & SC_REMOTE_ADDRESS) {
if (krb5_ret_address (sp, remotep = &remote) != 0)
goto failure;
}
krb5_auth_con_setaddrs (context, ac, localp, remotep);
if (localp)
krb5_free_address (context, localp);
if (remotep)
krb5_free_address (context, remotep);
localp = remotep = NULL;
if (krb5_ret_int16 (sp, &ac->local_port) != 0)
goto failure;
if (krb5_ret_int16 (sp, &ac->remote_port) != 0)
goto failure;
if (flags & SC_KEYBLOCK) {
if (krb5_ret_keyblock (sp, &keyblock) != 0)
goto failure;
krb5_auth_con_setkey (context, ac, &keyblock);
krb5_free_keyblock_contents (context, &keyblock);
}
if (flags & SC_LOCAL_SUBKEY) {
if (krb5_ret_keyblock (sp, &keyblock) != 0)
goto failure;
krb5_auth_con_setlocalsubkey (context, ac, &keyblock);
krb5_free_keyblock_contents (context, &keyblock);
}
if (flags & SC_REMOTE_SUBKEY) {
if (krb5_ret_keyblock (sp, &keyblock) != 0)
goto failure;
krb5_auth_con_setremotesubkey (context, ac, &keyblock);
krb5_free_keyblock_contents (context, &keyblock);
}
if (krb5_ret_uint32 (sp, &ac->local_seqnumber))
goto failure;
if (krb5_ret_uint32 (sp, &ac->remote_seqnumber))
goto failure;
if (krb5_ret_int32 (sp, &tmp) != 0)
goto failure;
ac->keytype = tmp;
if (krb5_ret_int32 (sp, &tmp) != 0)
goto failure;
ac->cksumtype = tmp;
/* names */
if (krb5_ret_data (sp, &data))
goto failure;
buffer.value = data.data;
buffer.length = data.length;
ret = _gsskrb5_import_name (minor_status, &buffer, GSS_C_NT_EXPORT_NAME,
&name);
if (ret) {
ret = _gsskrb5_import_name (minor_status, &buffer, GSS_C_NO_OID,
&name);
if (ret) {
krb5_data_free (&data);
goto failure;
}
}
ctx->source = (krb5_principal)name;
krb5_data_free (&data);
if (krb5_ret_data (sp, &data) != 0)
goto failure;
buffer.value = data.data;
buffer.length = data.length;
ret = _gsskrb5_import_name (minor_status, &buffer, GSS_C_NT_EXPORT_NAME,
&name);
if (ret) {
ret = _gsskrb5_import_name (minor_status, &buffer, GSS_C_NO_OID,
&name);
if (ret) {
krb5_data_free (&data);
goto failure;
}
}
ctx->target = (krb5_principal)name;
krb5_data_free (&data);
if (krb5_ret_int32 (sp, &tmp))
goto failure;
ctx->flags = tmp;
if (krb5_ret_int32 (sp, &tmp))
goto failure;
ctx->more_flags = tmp;
if (krb5_ret_int32 (sp, &tmp))
goto failure;
ctx->endtime = tmp;
ret = _gssapi_msg_order_import(minor_status, sp, &ctx->gk5c.order);
if (ret)
goto failure;
krb5_storage_free (sp);
_gsskrb5i_is_cfx(context, ctx, (ctx->more_flags & LOCAL) == 0);
*context_handle = (gss_ctx_id_t)ctx;
return GSS_S_COMPLETE;
failure:
krb5_auth_con_free (context,
ctx->auth_context);
if (ctx->source != NULL)
krb5_free_principal(context, ctx->source);
if (ctx->target != NULL)
krb5_free_principal(context, ctx->target);
if (localp)
krb5_free_address (context, localp);
if (remotep)
krb5_free_address (context, remotep);
if(ctx->gk5c.order)
_gssapi_msg_order_destroy(&ctx->gk5c.order);
HEIMDAL_MUTEX_destroy(&ctx->ctx_id_mutex);
krb5_storage_free (sp);
free (ctx);
*context_handle = GSS_C_NO_CONTEXT;
return ret;
}
