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Diffstat (limited to 'dhcpctl/remote.c')
| -rw-r--r-- | dhcpctl/remote.c | 361 |
1 files changed, 361 insertions, 0 deletions
diff --git a/dhcpctl/remote.c b/dhcpctl/remote.c new file mode 100644 index 0000000..e4e870b --- /dev/null +++ b/dhcpctl/remote.c @@ -0,0 +1,361 @@ +/* remote.c + + The dhcpctl remote object. */ + +/* + * Copyright (c) 2004,2007,2009 by Internet Systems Consortium, Inc. ("ISC") + * Copyright (c) 1999-2003 by Internet Software Consortium + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT + * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Internet Systems Consortium, Inc. + * 950 Charter Street + * Redwood City, CA 94063 + * <info@isc.org> + * https://www.isc.org/ + * + * This software has been written for Internet Systems Consortium + * by Ted Lemon in cooperation with Vixie Enterprises and Nominum, Inc. + * To learn more about Internet Systems Consortium, see + * ``https://www.isc.org/''. To learn more about Vixie Enterprises, + * see ``http://www.vix.com''. To learn more about Nominum, Inc., see + * ``http://www.nominum.com''. + */ + +#include "dhcpd.h" +#include <omapip/omapip_p.h> +#include "dhcpctl.h" + +/* dhcpctl_new_authenticator + + synchronous - creates an authenticator object. + returns nonzero status code if the object couldn't be created + stores handle to authenticator through h if successful, and returns zero. + name is the authenticator name (NUL-terminated string). + algorithm is the NUL-terminated string name of the algorithm to use + (currently, only "hmac-md5" is supported). + secret and secret_len is the key secret. */ + +dhcpctl_status dhcpctl_new_authenticator (dhcpctl_handle *h, + const char *name, + const char *algorithm, + const unsigned char *secret, + unsigned secret_len) +{ + struct auth_key *key = (struct auth_key *)0; + isc_result_t status; + + status = omapi_auth_key_new (&key, MDL); + if (status != ISC_R_SUCCESS) + return status; + + key -> name = dmalloc (strlen (name) + 1, MDL); + if (!key -> name) { + omapi_auth_key_dereference (&key, MDL); + return ISC_R_NOMEMORY; + } + strcpy (key -> name, name); + + /* If the algorithm name isn't an FQDN, tack on the + .SIG-ALG.REG.NET. domain. */ + if (strchr (algorithm, '.') == 0) { + static char add[] = ".SIG-ALG.REG.INT."; + key -> algorithm = dmalloc (strlen (algorithm) + + sizeof (add), MDL); + if (!key -> algorithm) { + omapi_auth_key_dereference (&key, MDL); + return ISC_R_NOMEMORY; + } + strcpy (key -> algorithm, algorithm); + strcat (key -> algorithm, add); + } else { + key -> algorithm = dmalloc (strlen (algorithm) + 1, MDL); + if (!key -> algorithm) { + omapi_auth_key_dereference (&key, MDL); + return ISC_R_NOMEMORY; + } + strcpy (key -> algorithm, algorithm); + } + + status = omapi_data_string_new (&key -> key, secret_len, MDL); + if (status != ISC_R_SUCCESS) { + omapi_auth_key_dereference (&key, MDL); + return status; + } + memcpy (key -> key -> value, secret, secret_len); + key -> key -> len = secret_len; + + *h = (dhcpctl_handle) key; + return ISC_R_SUCCESS; +} + + +/* dhcpctl_new_object + + synchronous - creates a local handle for a host entry. + returns nonzero status code if the local host entry couldn't + be created + stores handle to host through h if successful, and returns zero. + object_type is a pointer to a NUL-terminated string containing + the ascii name of the type of object being accessed - e.g., "host" */ + +dhcpctl_status dhcpctl_new_object (dhcpctl_handle *h, + dhcpctl_handle connection, + const char *object_type) +{ + dhcpctl_remote_object_t *m; + omapi_object_t *g; + isc_result_t status; + + m = (dhcpctl_remote_object_t *)0; + status = omapi_object_allocate((omapi_object_t **)&m, + dhcpctl_remote_type, 0, MDL); + if (status != ISC_R_SUCCESS) + return status; + + g = (omapi_object_t *)0; + status = omapi_generic_new (&g, MDL); + if (status != ISC_R_SUCCESS) { + dfree (m, MDL); + return status; + } + status = omapi_object_reference (&m -> inner, g, MDL); + if (status != ISC_R_SUCCESS) { + omapi_object_dereference ((omapi_object_t **)&m, MDL); + omapi_object_dereference (&g, MDL); + return status; + } + status = omapi_object_reference (&g -> outer, + (omapi_object_t *)m, MDL); + + if (status != ISC_R_SUCCESS) { + omapi_object_dereference ((omapi_object_t **)&m, MDL); + omapi_object_dereference (&g, MDL); + return status; + } + + status = omapi_typed_data_new (MDL, &m -> rtype, + omapi_datatype_string, + object_type); + if (status != ISC_R_SUCCESS) { + omapi_object_dereference ((omapi_object_t **)&m, MDL); + omapi_object_dereference (&g, MDL); + return status; + } + + status = omapi_object_reference (h, (omapi_object_t *)m, MDL); + omapi_object_dereference ((omapi_object_t **)&m, MDL); + omapi_object_dereference (&g, MDL); + if (status != ISC_R_SUCCESS) + return status; + + return status; +} + +/* asynchronous - just queues the request + returns nonzero status code if open couldn't be queued + returns zero if open was queued + h is a handle to an object created by dhcpctl_new_object + connection is a connection to a DHCP server + flags include: + DHCPCTL_CREATE - if the object doesn't exist, create it + DHCPCTL_UPDATE - update the object on the server using the + attached parameters + DHCPCTL_EXCL - error if the object exists and DHCPCTL_CREATE + was also specified */ + +dhcpctl_status dhcpctl_open_object (dhcpctl_handle h, + dhcpctl_handle connection, + int flags) +{ + isc_result_t status; + omapi_object_t *message = (omapi_object_t *)0; + dhcpctl_remote_object_t *remote; + + if (h -> type != dhcpctl_remote_type) + return DHCP_R_INVALIDARG; + remote = (dhcpctl_remote_object_t *)h; + + status = omapi_message_new (&message, MDL); + if (status != ISC_R_SUCCESS) + return status; + status = omapi_set_int_value (message, (omapi_object_t *)0, + "op", OMAPI_OP_OPEN); + if (status != ISC_R_SUCCESS) { + omapi_object_dereference (&message, MDL); + return status; + } + status = omapi_set_object_value (message, (omapi_object_t *)0, + "object", h); + if (status != ISC_R_SUCCESS) { + omapi_object_dereference (&message, MDL); + return status; + } + if (flags & DHCPCTL_CREATE) { + status = omapi_set_boolean_value (message, (omapi_object_t *)0, + "create", 1); + if (status != ISC_R_SUCCESS) { + omapi_object_dereference (&message, MDL); + return status; + } + } + if (flags & DHCPCTL_UPDATE) { + status = omapi_set_boolean_value (message, (omapi_object_t *)0, + "update", 1); + if (status != ISC_R_SUCCESS) { + omapi_object_dereference (&message, MDL); + return status; + } + } + if (flags & DHCPCTL_EXCL) { + status = omapi_set_boolean_value (message, (omapi_object_t *)0, + "exclusive", 1); + if (status != ISC_R_SUCCESS) { + omapi_object_dereference (&message, MDL); + return status; + } + } + + if (remote -> rtype) { + status = omapi_set_value_str (message, (omapi_object_t *)0, + "type", remote -> rtype); + if (status != ISC_R_SUCCESS) { + omapi_object_dereference (&message, MDL); + return status; + } + } + + status = omapi_message_register (message); + if (status != ISC_R_SUCCESS) { + omapi_object_dereference (&message, MDL); + return status; + } + + status = omapi_protocol_send_message (connection -> outer, + (omapi_object_t *)0, + message, (omapi_object_t *)0); + + if (status != ISC_R_SUCCESS) + omapi_message_unregister (message); + + omapi_object_dereference (&message, MDL); + return status; +} + +/* Callback methods (not meant to be called directly) */ + +isc_result_t dhcpctl_remote_set_value (omapi_object_t *h, + omapi_object_t *id, + omapi_data_string_t *name, + omapi_typed_data_t *value) +{ + dhcpctl_remote_object_t *ro; + unsigned long rh; + isc_result_t status; + + if (h -> type != dhcpctl_remote_type) + return DHCP_R_INVALIDARG; + ro = (dhcpctl_remote_object_t *)h; + + if (!omapi_ds_strcmp (name, "remote-handle")) { + status = omapi_get_int_value (&rh, value); + if (status == ISC_R_SUCCESS) + ro -> remote_handle = rh; + return status; + } + + if (h -> inner && h -> inner -> type -> set_value) + return (*(h -> inner -> type -> set_value)) + (h -> inner, id, name, value); + return ISC_R_NOTFOUND; +} + +isc_result_t dhcpctl_remote_get_value (omapi_object_t *h, + omapi_object_t *id, + omapi_data_string_t *name, + omapi_value_t **value) +{ + if (h -> type != dhcpctl_remote_type) + return DHCP_R_INVALIDARG; + + if (h -> inner && h -> inner -> type -> get_value) + return (*(h -> inner -> type -> get_value)) + (h -> inner, id, name, value); + return ISC_R_NOTFOUND; +} + +isc_result_t dhcpctl_remote_signal_handler (omapi_object_t *o, + const char *name, va_list ap) +{ + dhcpctl_remote_object_t *p; + omapi_typed_data_t *tv; + + if (o -> type != dhcpctl_remote_type) + return DHCP_R_INVALIDARG; + p = (dhcpctl_remote_object_t *)o; + + if (!strcmp (name, "updated")) { + p -> waitstatus = ISC_R_SUCCESS; + if (o -> inner -> type == omapi_type_generic) + omapi_generic_clear_flags (o -> inner); + return omapi_signal_in (o -> inner, "ready"); + } + if (!strcmp (name, "status")) { + p -> waitstatus = va_arg (ap, isc_result_t); + if (p -> message) + omapi_typed_data_dereference (&p -> message, MDL); + tv = va_arg (ap, omapi_typed_data_t *); + if (tv) + omapi_typed_data_reference (&p -> message, tv, MDL); + return omapi_signal_in (o -> inner, "ready"); + } + + if (p -> inner && p -> inner -> type -> signal_handler) + return (*(p -> inner -> type -> signal_handler)) + (p -> inner, name, ap); + + return ISC_R_SUCCESS; +} + +isc_result_t dhcpctl_remote_destroy (omapi_object_t *h, + const char *file, int line) +{ + dhcpctl_remote_object_t *p; + if (h -> type != dhcpctl_remote_type) + return DHCP_R_INVALIDARG; + p = (dhcpctl_remote_object_t *)h; + if (p -> handle) + omapi_object_dereference ((omapi_object_t **)&p -> handle, + file, line); + if (p -> rtype) + omapi_typed_data_dereference ((omapi_typed_data_t **)&p->rtype, + file, line); + return ISC_R_SUCCESS; +} + +/* Write all the published values associated with the object through the + specified connection. */ + +isc_result_t dhcpctl_remote_stuff_values (omapi_object_t *c, + omapi_object_t *id, + omapi_object_t *p) +{ + if (p -> type != dhcpctl_remote_type) + return DHCP_R_INVALIDARG; + + if (p -> inner && p -> inner -> type -> stuff_values) + return (*(p -> inner -> type -> stuff_values)) (c, id, + p -> inner); + return ISC_R_SUCCESS; +} + |