source: mainline/uspace/srv/net/ethip/ethip.h@ b7fd2a0

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since b7fd2a0 was b7fd2a0, checked in by Jiří Zárevúcky <zarevucky.jiri@…>, 8 years ago

Use errno_t in all uspace and kernel code.

Change type of every variable, parameter and return value that holds an
<errno.h> constant to either errno_t (the usual case), or sys_errno_t
(some places in kernel). This is for the purpose of self-documentation,
as well as for type-checking with a bit of type definition hackery.

Although this is a massive commit, it is a simple text replacement, and thus
is very easy to verify. Simply do the following:

`
git checkout <this commit's hash>
git reset HEAD
git add .
tools/srepl '\berrno_t\b' int
git add .
tools/srepl '\bsys_errno_t\b' sysarg_t
git reset
git diff
`

While this doesn't ensure that the replacements are correct, it does ensure
that the commit doesn't do anything except those replacements. Since errno_t
is typedef'd to int in the usual case (and sys_errno_t to sysarg_t), even if
incorrect, this commit cannot change behavior.

  • Property mode set to 100644
File size: 3.1 KB
Line 
1/*
2 * Copyright (c) 2012 Jiri Svoboda
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup ethip
30 * @{
31 */
32/**
33 * @file
34 * @brief
35 */
36
37#ifndef ETHIP_H_
38#define ETHIP_H_
39
40#include <adt/list.h>
41#include <async.h>
42#include <inet/iplink_srv.h>
43#include <inet/addr.h>
44#include <loc.h>
45#include <stddef.h>
46#include <stdint.h>
47
48typedef struct {
49 link_t link;
50 inet_addr_t addr;
51} ethip_link_addr_t;
52
53typedef struct ethip_nic {
54 link_t link;
55 service_id_t svc_id;
56 char *svc_name;
57 async_sess_t *sess;
58
59 iplink_srv_t iplink;
60 service_id_t iplink_sid;
61
62 /** MAC address */
63 addr48_t mac_addr;
64
65 /**
66 * List of IP addresses configured on this link
67 * (of the type ethip_link_addr_t)
68 */
69 list_t addr_list;
70} ethip_nic_t;
71
72/** Ethernet frame */
73typedef struct {
74 /** Destination Address */
75 addr48_t dest;
76 /** Source Address */
77 addr48_t src;
78 /** Ethertype or Length */
79 uint16_t etype_len;
80 /** Payload */
81 void *data;
82 /** Payload size */
83 size_t size;
84} eth_frame_t;
85
86/** ARP opcode */
87typedef enum {
88 /** Request */
89 aop_request,
90 /** Reply */
91 aop_reply
92} arp_opcode_t;
93
94/** ARP packet (for 48-bit MAC addresses and IPv4)
95 *
96 * Internal representation
97 */
98typedef struct {
99 /** Opcode */
100 arp_opcode_t opcode;
101 /** Sender hardware address */
102 addr48_t sender_hw_addr;
103 /** Sender protocol address */
104 addr32_t sender_proto_addr;
105 /** Target hardware address */
106 addr48_t target_hw_addr;
107 /** Target protocol address */
108 addr32_t target_proto_addr;
109} arp_eth_packet_t;
110
111/** Address translation table element */
112typedef struct {
113 link_t atrans_list;
114 addr32_t ip_addr;
115 addr48_t mac_addr;
116} ethip_atrans_t;
117
118extern errno_t ethip_iplink_init(ethip_nic_t *);
119extern errno_t ethip_received(iplink_srv_t *, void *, size_t);
120
121#endif
122
123/** @}
124 */
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