diff options
Diffstat (limited to 'src/libimcv/ietf/ietf_attr_op_status.c')
-rw-r--r-- | src/libimcv/ietf/ietf_attr_op_status.c | 314 |
1 files changed, 314 insertions, 0 deletions
diff --git a/src/libimcv/ietf/ietf_attr_op_status.c b/src/libimcv/ietf/ietf_attr_op_status.c new file mode 100644 index 000000000..d9610b29d --- /dev/null +++ b/src/libimcv/ietf/ietf_attr_op_status.c @@ -0,0 +1,314 @@ +/* + * Copyright (C) 2012 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * 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. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * 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. + */ + +#include "ietf_attr_op_status.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <utils/debug.h> + +#include <time.h> + +typedef struct private_ietf_attr_op_status_t private_ietf_attr_op_status_t; + +ENUM(op_status_names, OP_STATUS_UNKNOWN, OP_STATUS_OPERATIONAL, + "unknown", + "not installed", + "installed", + "operational" +); + +ENUM(op_result_names, OP_RESULT_UNKNOWN, OP_RESULT_UNSUCCESSFUL, + "unknown", + "successful", + "errored", + "unsuccessful" +); + +/** + * PA-TNC Operational Status type (see section 4.2.5 of RFC 5792) + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Status | Result | Reserved | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Last Use | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Last Use (continued) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Last Use (continued) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Last Use (continued) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Last Use (continued) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + +#define OP_STATUS_SIZE 24 + +/** + * Private data of an ietf_attr_op_status_t object. + */ +struct private_ietf_attr_op_status_t { + + /** + * Public members of ietf_attr_op_status_t + */ + ietf_attr_op_status_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Attribute value + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * Status + */ + u_int8_t status; + + /** + * Result + */ + u_int8_t result; + + /** + * Last Use + */ + time_t last_use; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_ietf_attr_op_status_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_ietf_attr_op_status_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_ietf_attr_op_status_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_ietf_attr_op_status_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_ietf_attr_op_status_t *this) +{ + bio_writer_t *writer; + char last_use[24]; + struct tm t; + + if (this->value.ptr) + { + return; + } + + /* Conversion from time_t to RFC 3339 ASCII string */ + gmtime_r(&this->last_use, &t); + snprintf(last_use, 21, "%04d-%02d-%02dT%02d:%02d:%02dZ", 1900 + t.tm_year, + t.tm_mon + 1, t.tm_mday, t.tm_hour, t.tm_min, t.tm_sec); + + writer = bio_writer_create(OP_STATUS_SIZE); + writer->write_uint8 (writer, this->status); + writer->write_uint8 (writer, this->result); + writer->write_uint16(writer, 0x0000); + writer->write_data (writer, chunk_create(last_use, 20)); + + this->value = chunk_clone(writer->get_buf(writer)); + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_ietf_attr_op_status_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + chunk_t last_use; + u_int16_t reserved; + struct tm t; + + *offset = 0; + + if (this->value.len != OP_STATUS_SIZE) + { + DBG1(DBG_TNC, "incorrect size for IETF operational status"); + return FAILED; + } + reader = bio_reader_create(this->value); + reader->read_uint8 (reader, &this->status); + reader->read_uint8 (reader, &this->result); + reader->read_uint16(reader, &reserved); + reader->read_data (reader, 20, &last_use); + reader->destroy(reader); + + if (this->status > OP_STATUS_ROOF) + { + DBG1(DBG_TNC, "invalid status value %c for IETF operational status", + this->status); + return FAILED; + } + + *offset = 1; + + if (this->result > OP_RESULT_ROOF) + { + DBG1(DBG_TNC, "invalid result value %c for IETF operational status", + this->result); + return FAILED; + } + + *offset = 4; + + /* Conversion from RFC 3339 ASCII string to time_t */ + if (sscanf(last_use.ptr, "%4d-%2d-%2dT%2d:%2d:%2dZ", &t.tm_year, &t.tm_mon, + &t.tm_mday, &t.tm_hour, &t.tm_min, &t.tm_sec) != 6) + { + DBG1(DBG_TNC, "invalid last_use time format in IETF operational status"); + return FAILED; + } + t.tm_year -= 1900; + t.tm_mon -= 1; + t.tm_isdst = 0; + this->last_use = mktime(&t) - timezone; + + return SUCCESS; +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_ietf_attr_op_status_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_ietf_attr_op_status_t *this) +{ + if (ref_put(&this->ref)) + { + free(this->value.ptr); + free(this); + } +} + +METHOD(ietf_attr_op_status_t, get_status, u_int8_t, + private_ietf_attr_op_status_t *this) +{ + return this->status; +} + +METHOD(ietf_attr_op_status_t, get_result, u_int8_t, + private_ietf_attr_op_status_t *this) +{ + return this->result; +} + +METHOD(ietf_attr_op_status_t, get_last_use, time_t, + private_ietf_attr_op_status_t *this) +{ + return this->last_use; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *ietf_attr_op_status_create(u_int8_t status, u_int8_t result, + time_t last_use) +{ + private_ietf_attr_op_status_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_status = _get_status, + .get_result = _get_result, + .get_last_use = _get_last_use, + }, + .type = { PEN_IETF, IETF_ATTR_OPERATIONAL_STATUS }, + .status = status, + .result = result, + .last_use = last_use, + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *ietf_attr_op_status_create_from_data(chunk_t data) +{ + private_ietf_attr_op_status_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_status = _get_status, + .get_result = _get_result, + .get_last_use = _get_last_use, + }, + .type = { PEN_IETF, IETF_ATTR_OPERATIONAL_STATUS }, + .value = chunk_clone(data), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + |