4afd3348c7
GLIB has recently started to officially support the gcc cleanup
attribute in its public API, hence let's do the same for our APIs.
With this patch we'll define an xyz_unrefp() call for each public
xyz_unref() call, to make it easy to use inside a
__attribute__((cleanup())) expression. Then, all code is ported over to
make use of this.
The new calls are also documented in the man pages, with examples how to
use them (well, I only added docs where the _unref() call itself already
had docs, and the examples, only cover sd_bus_unrefp() and
sd_event_unrefp()).
This also renames sd_lldp_free() to sd_lldp_unref(), since that's how we
tend to call our destructors these days.
Note that this defines no public macro that wraps gcc's attribute and
makes it easier to use. While I think it's our duty in the library to
make our stuff easy to use, I figure it's not our duty to make gcc's own
features easy to use on its own. Most likely, client code which wants to
make use of this should define its own:
#define _cleanup_(function) __attribute__((cleanup(function)))
Or similar, to make the gcc feature easier to use.
Making this logic public has the benefit that we can remove three header
files whose only purpose was to define these functions internally.
See #2008.
97 lines
2.6 KiB
C
97 lines
2.6 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
|
|
|
|
/***
|
|
This file is part of systemd.
|
|
|
|
Copyright (C) 2013 Intel Corporation. All rights reserved.
|
|
Copyright (C) 2014 Tom Gundersen
|
|
|
|
systemd 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; either version 2.1 of the License, or
|
|
(at your option) any later version.
|
|
|
|
systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>.
|
|
***/
|
|
|
|
#pragma once
|
|
|
|
#include "sd-dhcp-server.h"
|
|
#include "sd-event.h"
|
|
|
|
#include "dhcp-internal.h"
|
|
#include "hashmap.h"
|
|
#include "log.h"
|
|
#include "util.h"
|
|
|
|
typedef struct DHCPClientId {
|
|
size_t length;
|
|
void *data;
|
|
} DHCPClientId;
|
|
|
|
typedef struct DHCPLease {
|
|
DHCPClientId client_id;
|
|
|
|
be32_t address;
|
|
be32_t gateway;
|
|
uint8_t chaddr[16];
|
|
usec_t expiration;
|
|
} DHCPLease;
|
|
|
|
struct sd_dhcp_server {
|
|
unsigned n_ref;
|
|
|
|
sd_event *event;
|
|
int event_priority;
|
|
sd_event_source *receive_message;
|
|
int fd;
|
|
int fd_raw;
|
|
|
|
int ifindex;
|
|
be32_t address;
|
|
be32_t netmask;
|
|
be32_t subnet;
|
|
uint32_t pool_offset;
|
|
uint32_t pool_size;
|
|
|
|
char *timezone;
|
|
|
|
struct in_addr *ntp, *dns;
|
|
unsigned n_ntp, n_dns;
|
|
|
|
Hashmap *leases_by_client_id;
|
|
DHCPLease **bound_leases;
|
|
DHCPLease invalid_lease;
|
|
|
|
uint32_t max_lease_time, default_lease_time;
|
|
};
|
|
|
|
typedef struct DHCPRequest {
|
|
/* received message */
|
|
DHCPMessage *message;
|
|
|
|
/* options */
|
|
DHCPClientId client_id;
|
|
size_t max_optlen;
|
|
be32_t server_id;
|
|
be32_t requested_ip;
|
|
uint32_t lifetime;
|
|
} DHCPRequest;
|
|
|
|
#define log_dhcp_server(client, fmt, ...) log_internal(LOG_DEBUG, 0, __FILE__, __LINE__, __func__, "DHCP SERVER: " fmt, ##__VA_ARGS__)
|
|
|
|
int dhcp_server_handle_message(sd_dhcp_server *server, DHCPMessage *message,
|
|
size_t length);
|
|
int dhcp_server_send_packet(sd_dhcp_server *server,
|
|
DHCPRequest *req, DHCPPacket *packet,
|
|
int type, size_t optoffset);
|
|
|
|
void client_id_hash_func(const void *p, struct siphash *state);
|
|
int client_id_compare_func(const void *_a, const void *_b);
|