From 743f4857ede9f48def462c1ea2cee8be71356fac Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ram=C5=ABnas=20Ma=C5=BEeikis?= Date: Wed, 29 May 2019 13:53:50 +0300 Subject: Protocol: renamed some files. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Ramūnas Mažeikis --- src/common/protocol.c | 133 -------------------------------------------------- 1 file changed, 133 deletions(-) delete mode 100644 src/common/protocol.c (limited to 'src/common/protocol.c') diff --git a/src/common/protocol.c b/src/common/protocol.c deleted file mode 100644 index 0002a96..0000000 --- a/src/common/protocol.c +++ /dev/null @@ -1,133 +0,0 @@ -/* - * Usurpataion --- clinet-server protocol implementation. - * - * Copyright (C) 2019 Ramūnas Mažeikis - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; version 2.1 - * of the License. - * - * 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA - */ - -/** - * Common parts of protocol implementation. Handling of anything that actually - * deals with connection descriptor has to be implemented by device and daemon - * separately. - */ - -#include -#include -#include -#include "protocol.h" -#include "protocol_private.h" -#include "net.h" -#include "utils.h" - -int tlv_get(struct tlv_parser *parser, struct tlv *ret) -{ - int retval = 0; - - if (parser->offset + sizeof(ret->type) + sizeof(ret->length) >= parser->size) { - retval = E_TLV_OVERFLOW; - } else if (parser -> offset == parser->size) { - retval = END_OF_PACKET; - } else { - ret->type = memcpy(&ret->type, parser->data + parser->offset, sizeof(ret->type)); - parser->size += sizeof(ret->type); - ret->length = memcpy(&ret->length, parser->data + parser->offset, sizeof(ret->length)); - parser->offset += sizeof(ret->length); - if (parser->offset + ret->length >= parser->size) { - retval = E_TLV_OVERFLOW; - } else { - memcpy(ret->data, parser->data, ret->length); - } - } - return retval; -} - -size_t tlv_data_size(struct tlv_parser *parser) -{ - size_t size; - - if (parser->offset + sizeof(enum tlv_type) + sizeof(size_t) >= parser->size) { - size = 0; - } else { - memcpy(&size, parser->data + parser->offset + sizeof(enum tlv_type), sizeof(size_t)); - } - return size; -} - -void tlv_destroy(struct tlv *t) -{ - size_t i = 0; - size_t tlv_count; - struct tlv *arr; - switch (t->type) - { - case REGURAL: - case HEARTBEAT: - case DISCOVERY: - tlv_count = t->length / sizeof(struct tlv); - arr = t->data; - for (i = 0; i < tlv_count; i++) { - tlv_destroy(&arr[i]); - } - default: - free(t->data); - t->length = 0; - break; - } -} - -size_t tlv_raw_size(const struct tlv *t) -{ - return sizeof(*t) + t->length; -} - -int tlv_push_data(struct tlv *t, const char *data, size_t size) -{ - int ret = 0; - size_t final_size = tlv_raw_size(t) + size; - if (final_size > TLV_SZ_MAX_RAW) { - ret = E_TLV_OVERFLOW; - } else { - t->data = realloc(t->data, final_size); - memcpy(t->data + t->length, data, size); - t->length = final_size; - } - return ret; -} - -void tlv_init(struct tlv *t, enum tlv_type type) -{ - t->type = type; - t->length = 0; - t->data = NULL; -} - -int tlv_push_tlv(struct tlv *t, const struct tlv *other) -{ - int ret = 0; - size_t other_size; - size_t final_size; - - other_size = tlv_raw_size(other); - final_size = tlv_raw_size(t) + other_size; - if (final_size > TLV_SZ_MAX_RAW) { - ret = E_TLV_OVERFLOW; - } else { - tlv_get_raw(other, t->data + t->length); - t->length = final_size; - } - - return ret; -} \ No newline at end of file -- cgit v1.2.3