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contrib/dhcpcd/src/control.h
- This file was added.
| /* SPDX-License-Identifier: BSD-2-Clause */ | |||||
| /* | |||||
| * dhcpcd - DHCP client daemon | |||||
| * Copyright (c) 2006-2021 Roy Marples <roy@marples.name> | |||||
| * All rights reserved | |||||
| * Redistribution and use in source and binary forms, with or without | |||||
| * modification, are permitted provided that the following conditions | |||||
| * are met: | |||||
| * 1. Redistributions of source code must retain the above copyright | |||||
| * notice, this list of conditions and the following disclaimer. | |||||
| * 2. Redistributions in binary form must reproduce the above copyright | |||||
| * notice, this list of conditions and the following disclaimer in the | |||||
| * documentation and/or other materials provided with the distribution. | |||||
| * | |||||
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |||||
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |||||
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |||||
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |||||
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |||||
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |||||
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |||||
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |||||
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |||||
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |||||
| * SUCH DAMAGE. | |||||
| */ | |||||
| #ifndef CONTROL_H | |||||
| #define CONTROL_H | |||||
| #include <stdbool.h> | |||||
| #include "dhcpcd.h" | |||||
| #if !defined(CTL_FREE_LIST) | |||||
| #define CTL_FREE_LIST 1 | |||||
| #elif CTL_FREE_LIST == 0 | |||||
| #undef CTL_FREE_LIST | |||||
| #endif | |||||
| /* Limit queue size per fd */ | |||||
| #define CONTROL_QUEUE_MAX 100 | |||||
| struct fd_data { | |||||
| TAILQ_ENTRY(fd_data) next; | |||||
| void *data; | |||||
| size_t data_size; | |||||
| size_t data_len; | |||||
| unsigned int data_flags; | |||||
| }; | |||||
| TAILQ_HEAD(fd_data_head, fd_data); | |||||
| struct fd_list { | |||||
| TAILQ_ENTRY(fd_list) next; | |||||
| struct dhcpcd_ctx *ctx; | |||||
| int fd; | |||||
| unsigned int flags; | |||||
| struct fd_data_head queue; | |||||
| #ifdef CTL_FREE_LIST | |||||
| struct fd_data_head free_queue; | |||||
| #endif | |||||
| }; | |||||
| TAILQ_HEAD(fd_list_head, fd_list); | |||||
| #define FD_LISTEN 0x01U | |||||
| #define FD_UNPRIV 0x02U | |||||
| #define FD_SENDLEN 0x04U | |||||
| int control_start(struct dhcpcd_ctx *, const char *, sa_family_t); | |||||
| int control_stop(struct dhcpcd_ctx *); | |||||
| int control_open(const char *, sa_family_t, bool); | |||||
| ssize_t control_send(struct dhcpcd_ctx *, int, char * const *); | |||||
| struct fd_list *control_new(struct dhcpcd_ctx *, int, unsigned int); | |||||
| void control_free(struct fd_list *); | |||||
| void control_delete(struct fd_list *); | |||||
| int control_queue(struct fd_list *, void *, size_t); | |||||
| void control_recvdata(struct fd_list *fd, char *, size_t); | |||||
| #endif | |||||