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authorLuke Shumaker <lukeshu@lukeshu.com>2017-05-20 17:35:06 -0400
committerLuke Shumaker <lukeshu@lukeshu.com>2017-05-20 17:35:06 -0400
commitf2f1f2472c5efc541bd53f51289ad58a86fa2d41 (patch)
tree42807ddc64ab0672744c716d9f952e5673762b9d /src/libsystemd-network/include/systemd-network/dhcp-identifier.h
parent3eed542bbc10978aa0b68a39dd3619edf7a7d90b (diff)
./tools/notsd-move
Diffstat (limited to 'src/libsystemd-network/include/systemd-network/dhcp-identifier.h')
-rw-r--r--src/libsystemd-network/include/systemd-network/dhcp-identifier.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/src/libsystemd-network/include/systemd-network/dhcp-identifier.h b/src/libsystemd-network/include/systemd-network/dhcp-identifier.h
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index 0000000000..187780e7b0
--- /dev/null
+++ b/src/libsystemd-network/include/systemd-network/dhcp-identifier.h
@@ -0,0 +1,74 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright (C) 2015 Tom Gundersen <teg@jklmen>
+
+ 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 <systemd/sd-id128.h>
+
+#include "systemd-basic/macro.h"
+#include "systemd-basic/sparse-endian.h"
+#include "systemd-basic/unaligned.h"
+
+typedef enum DUIDType {
+ DUID_TYPE_LLT = 1,
+ DUID_TYPE_EN = 2,
+ DUID_TYPE_LL = 3,
+ DUID_TYPE_UUID = 4,
+ _DUID_TYPE_MAX,
+ _DUID_TYPE_INVALID = -1,
+} DUIDType;
+
+/* RFC 3315 section 9.1:
+ * A DUID can be no more than 128 octets long (not including the type code).
+ */
+#define MAX_DUID_LEN 128
+
+/* https://tools.ietf.org/html/rfc3315#section-9.1 */
+struct duid {
+ be16_t type;
+ union {
+ struct {
+ /* DUID_TYPE_LLT */
+ uint16_t htype;
+ uint32_t time;
+ uint8_t haddr[0];
+ } _packed_ llt;
+ struct {
+ /* DUID_TYPE_EN */
+ uint32_t pen;
+ uint8_t id[8];
+ } _packed_ en;
+ struct {
+ /* DUID_TYPE_LL */
+ int16_t htype;
+ uint8_t haddr[0];
+ } _packed_ ll;
+ struct {
+ /* DUID_TYPE_UUID */
+ sd_id128_t uuid;
+ } _packed_ uuid;
+ struct {
+ uint8_t data[MAX_DUID_LEN];
+ } _packed_ raw;
+ };
+} _packed_;
+
+int dhcp_validate_duid_len(uint16_t duid_type, size_t duid_len);
+int dhcp_identifier_set_duid_en(struct duid *duid, size_t *len);
+int dhcp_identifier_set_iaid(int ifindex, uint8_t *mac, size_t mac_len, void *_id);