sd-network: add new library

This is similar to sd-login, but exposes the state of networkd rather than logind.

Include it in libsystemd-dhcp and rename it to libsystemd-network.

1 files changed, 55 insertions, 0 deletions

diff --git a/src/libsystemd-network/dhcp-internal.h b/src/libsystemd-network/dhcp-internal.h
new file mode 100644
index 0000000000..ce83b81631
--- /dev/null
+++ b/src/libsystemd-network/dhcp-internal.h
@@ -0,0 +1,55 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+  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/>.
+***/
+
+#include <stdint.h>
+#include <linux/if_packet.h>
+
+#include "socket-util.h"
+
+#include "dhcp-protocol.h"
+
+int dhcp_network_bind_raw_socket(int index, union sockaddr_union *link);
+int dhcp_network_bind_udp_socket(int index, be32_t address, uint16_t port);
+int dhcp_network_send_raw_socket(int s, const union sockaddr_union *link,
+                                 const void *packet, size_t len);
+int dhcp_network_send_udp_socket(int s, be32_t address, uint16_t port,
+                                 const void *packet, size_t len);
+
+int dhcp_option_append(uint8_t **buf, size_t *buflen, uint8_t code,
+                       size_t optlen, const void *optval);
+
+typedef int (*dhcp_option_cb_t)(uint8_t code, uint8_t len,
+                                const uint8_t *option, void *user_data);
+
+int dhcp_option_parse(DHCPMessage *message, size_t len,
+                      dhcp_option_cb_t cb, void *user_data);
+
+int dhcp_message_init(DHCPMessage *message, uint8_t op, uint32_t xid, uint8_t type,
+                      uint8_t **opt, size_t *optlen);
+
+void dhcp_packet_append_ip_headers(DHCPPacket *packet, uint16_t len);
+
+int dhcp_packet_verify_headers(DHCPPacket *packet, size_t len, bool checksum);
+
+#define log_dhcp_client(client, fmt, ...) log_meta(LOG_DEBUG, __FILE__, __LINE__, __func__, "DHCP CLIENT: " fmt, ##__VA_ARGS__)