2 * iplink_hsr.c HSR device support
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
9 * Authors: Arvid Brodin <arvid.brodin@alten.se>
11 * Based on iplink_vlan.c by Patrick McHardy <kaber@trash.net>
17 #include <sys/socket.h> /* Needed by linux/if.h for some reason */
19 #include <linux/if_arp.h>
22 #include "ip_common.h"
24 static void print_usage(FILE *f
)
27 "Usage:\tip link add name NAME type hsr slave1 SLAVE1-IF slave2 SLAVE2-IF\n"
28 "\t[ supervision ADDR-BYTE ] [version VERSION] [proto PROTOCOL]\n"
31 " name of new hsr device (e.g. hsr0)\n"
32 "SLAVE1-IF, SLAVE2-IF\n"
33 " the two slave devices bound to the HSR device\n"
35 " 0-255; the last byte of the multicast address used for HSR supervision\n"
36 " frames (default = 0)\n"
38 " 0,1; the protocol version to be used. (default = 0)\n"
40 " 0 - HSR, 1 - PRP. (default = 0 - HSR)\n");
43 static void usage(void)
48 static int hsr_parse_opt(struct link_util
*lu
, int argc
, char **argv
,
52 unsigned char multicast_spec
;
53 unsigned char protocol_version
;
54 unsigned char protocol
= HSR_PROTOCOL_HSR
;
57 if (matches(*argv
, "supervision") == 0) {
59 if (get_u8(&multicast_spec
, *argv
, 0))
60 invarg("ADDR-BYTE is invalid", *argv
);
61 addattr_l(n
, 1024, IFLA_HSR_MULTICAST_SPEC
,
63 } else if (matches(*argv
, "version") == 0) {
65 if (!(get_u8(&protocol_version
, *argv
, 0) == 0 ||
66 get_u8(&protocol_version
, *argv
, 0) == 1))
67 invarg("version is invalid", *argv
);
68 addattr_l(n
, 1024, IFLA_HSR_VERSION
,
69 &protocol_version
, 1);
70 } else if (matches(*argv
, "proto") == 0) {
72 if (!(get_u8(&protocol
, *argv
, 0) == HSR_PROTOCOL_HSR
||
73 get_u8(&protocol
, *argv
, 0) == HSR_PROTOCOL_PRP
))
74 invarg("protocol is invalid", *argv
);
75 addattr_l(n
, 1024, IFLA_HSR_PROTOCOL
,
77 } else if (matches(*argv
, "slave1") == 0) {
79 ifindex
= ll_name_to_index(*argv
);
81 invarg("No such interface", *argv
);
82 addattr_l(n
, 1024, IFLA_HSR_SLAVE1
, &ifindex
, 4);
83 } else if (matches(*argv
, "slave2") == 0) {
85 ifindex
= ll_name_to_index(*argv
);
87 invarg("No such interface", *argv
);
88 addattr_l(n
, 1024, IFLA_HSR_SLAVE2
, &ifindex
, 4);
89 } else if (matches(*argv
, "help") == 0) {
93 fprintf(stderr
, "hsr: what is \"%s\"?\n", *argv
);
103 static void hsr_print_opt(struct link_util
*lu
, FILE *f
, struct rtattr
*tb
[])
110 if (tb
[IFLA_HSR_SLAVE1
] &&
111 RTA_PAYLOAD(tb
[IFLA_HSR_SLAVE1
]) < sizeof(__u32
))
113 if (tb
[IFLA_HSR_SLAVE2
] &&
114 RTA_PAYLOAD(tb
[IFLA_HSR_SLAVE2
]) < sizeof(__u32
))
116 if (tb
[IFLA_HSR_SEQ_NR
] &&
117 RTA_PAYLOAD(tb
[IFLA_HSR_SEQ_NR
]) < sizeof(__u16
))
119 if (tb
[IFLA_HSR_SUPERVISION_ADDR
] &&
120 RTA_PAYLOAD(tb
[IFLA_HSR_SUPERVISION_ADDR
]) < ETH_ALEN
)
123 if (tb
[IFLA_HSR_SLAVE1
])
124 print_string(PRINT_ANY
,
127 ll_index_to_name(rta_getattr_u32(tb
[IFLA_HSR_SLAVE1
])));
129 print_null(PRINT_ANY
, "slave1", "slave1 %s ", "<none>");
131 if (tb
[IFLA_HSR_SLAVE2
])
132 print_string(PRINT_ANY
,
135 ll_index_to_name(rta_getattr_u32(tb
[IFLA_HSR_SLAVE2
])));
137 print_null(PRINT_ANY
, "slave2", "slave2 %s ", "<none>");
139 if (tb
[IFLA_HSR_SEQ_NR
])
143 rta_getattr_u16(tb
[IFLA_HSR_SEQ_NR
]));
145 if (tb
[IFLA_HSR_SUPERVISION_ADDR
])
146 print_string(PRINT_ANY
,
149 ll_addr_n2a(RTA_DATA(tb
[IFLA_HSR_SUPERVISION_ADDR
]),
150 RTA_PAYLOAD(tb
[IFLA_HSR_SUPERVISION_ADDR
]),
153 if (tb
[IFLA_HSR_PROTOCOL
])
154 print_hhu(PRINT_ANY
, "proto", "proto %hhu ",
155 rta_getattr_u8(tb
[IFLA_HSR_PROTOCOL
]));
158 static void hsr_print_help(struct link_util
*lu
, int argc
, char **argv
,
164 struct link_util hsr_link_util
= {
166 .maxattr
= IFLA_HSR_MAX
,
167 .parse_opt
= hsr_parse_opt
,
168 .print_opt
= hsr_print_opt
,
169 .print_help
= hsr_print_help
,