From 13015f9a8d2b6b982d7d84e62943fbba15aee05a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ram=C5=ABnas=20Ma=C5=BEeikis?= Date: Wed, 22 May 2019 10:49:08 +0300 Subject: Protocol: switched files to C++ and did minor fixes. The code has a chance to compile now. No changes to actual build files yet. --- src/common/protocol.c | 153 -------------------------------------------------- 1 file changed, 153 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 dc0f532..0000000 --- a/src/common/protocol.c +++ /dev/null @@ -1,153 +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 "protocol.h" -#include "protocol_private.h" -#include "net.h" -#include -#include -#include - -#define READ_AS(from, type) (*(type*)(from)) - -int push_data(cd_t connection, const char *data, enum tlv_type type) -{ - int ret = E_UNKNOWN_TYPE; - switch (type) { - case TEXT: - ret = push_string(connection, data); - break; - case FPI1: - ret = push_fpi1(connection, data); - break; - case TIMESTAMP: - ret = push_timestamp(connection, data); - break; - case REQUEST: - ret = push_request(connection, data); - break; - case REPLY: - ret = push_reply(connection, data); - break; - case UUID: - ret = push_uuid(connection, data); - break; - } - return ret; -} - -static int push_string(cd_t connection, char *str) -{ - int ret = 0; - size_t size = strlen(str); - - ret |= push_tlv_header(connection, TEXT, size); - ret |= push_bytes(connection, str, size); - return ret; -} - -static int push_fpi1(cd_t connection, char *num) -{ - return push_tlv_header(connection, FPI1, sizeof(fpi1_t)) - | push_bytes(connection, num, sizeof(fpi1_t)); -} - -static int push_timestamp(cd_t connection, char *data) -{ - return push_tlv_header(connection, TIMESTAMP, sizeof(time_t)) - | push_bytes(connection, data, sizeof(time_t)); -} - -static int push_request(cd_t connection, char *data) -{ - return push_tlv_header(connection, REQUEST, sizeof(msg_idx_t)) - | push_bytes(connection, data, sizeof(msg_idx_t)); -} - -static int push_reply(cd_t connection, char *data) -{ - int ret = 0; - size_t msglen = strlen(data + sizeof(msg_idx_t)); - ret |= push_tlv_header(connection, REPLY, msglen + sizeof(msg_idx_t)); - ret |= push_bytes(connection, data, msglen); - return ret; -} - -static int push_uuid(cd_t connection, char *data) -{ - return push_tlv_header(connection, UUID, sizeof(uuid_t)) - | push_bytes(connection, data, sizeof(uuid_t)); -} - -size_t tlv_count(const struct packet_data * const packet) -{ - size_t cursor = 0; - size_t length = 0; - size_t ret = 0; - - while (cursor < packet->packet_size) { - cursor += sizeof(enum tlv_type); - length = READ_AS(packet->data + cursor, enum tlv_type); - cursor += sizeof(size_t) + length; - ret++; - } - if (cursor != packet->packet_size) { - errno = E_TLV_OVERFLOW; - } - return ret; -} - -size_t get_tlvs( const struct packet_data * const data, - const struct tlv *buf, - size_t buf_size) -{ - size_t tlvs_read = 0; - size_t cursor = 0; - - while (cursor < data->packet_size && tlvs_read <= buf_size) { - cursor += parse_tlv(data->data, cursor, buf + tlvs_read); - tlvs_read++; - } - - if (cursor > data->packet_size) { - errno = E_TLV_OVERFLOW; - } - - return tlvs_read; -} - -size_t parse_tlv(char *data, size_t cursor, struct tlv *t) -{ - char *begin = data + cursor; - - t->type = READ_TLV_TYPE(data + cursor); - cursor += sizeof(enum tlv_type); - t->length += READ_SIZE_T(data + cursor); - data += sizeof(size_t); - t->data = data + cursor; - - return data + cursor - begin + 1UL; -} -- cgit v1.2.3