Line data Source code
1 : /*
2 : * ISO Network functions - iso_net.c
3 : *
4 : * Author: Olivier Dugeon <olivier.dugeon@orange.com>
5 : *
6 : * Copyright (C) 2023 Orange http://www.orange.com
7 : *
8 : * This file is part of Free Range Routing (FRR).
9 : *
10 : * FRR is free software; you can redistribute it and/or modify it
11 : * under the terms of the GNU General Public License as published by the
12 : * Free Software Foundation; either version 2, or (at your option) any
13 : * later version.
14 : *
15 : * FRR is distributed in the hope that it will be useful, but
16 : * WITHOUT ANY WARRANTY; without even the implied warranty of
17 : * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 : * General Public License for more details.
19 : *
20 : * You should have received a copy of the GNU General Public License along
21 : * with this program; see the file COPYING; if not, write to the Free Software
22 : * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 : */
24 :
25 : #ifdef HAVE_CONFIG_H
26 : #include "config.h"
27 : #endif
28 :
29 : #include "compiler.h"
30 :
31 : #include <string.h>
32 : #include <ctype.h>
33 : #include <time.h>
34 :
35 : #include "printfrr.h"
36 : #include "iso.h"
37 :
38 : /**
39 : * Print ISO System ID as 0000.0000.0000
40 : *
41 : * @param Print buffer
42 : * @param Print argument
43 : * @param Pointer to the System ID to be printed
44 : *
45 : * @return Number of printed characters
46 : */
47 4 : printfrr_ext_autoreg_p("SY", printfrr_iso_sysid);
48 0 : static ssize_t printfrr_iso_sysid(struct fbuf *buf, struct printfrr_eargs *ea,
49 : const void *vptr)
50 : {
51 0 : const uint8_t *id = vptr;
52 :
53 0 : if (!id)
54 0 : return bputs(buf, "(null)");
55 :
56 0 : return bprintfrr(buf, "%02x%02x.%02x%02x.%02x%02x",
57 0 : id[0], id[1], id[2], id[3], id[4], id[5]);
58 : }
59 :
60 : /**
61 : * Print ISO Pseudo Node system ID as 0000.0000.0000.00
62 : *
63 : * @param Print buffer
64 : * @param Print argument
65 : * @param Pointer to the System ID to be printed
66 : *
67 : * @return Number of printed characters
68 : */
69 4 : printfrr_ext_autoreg_p("PN", printfrr_iso_pseudo);
70 0 : static ssize_t printfrr_iso_pseudo(struct fbuf *buf, struct printfrr_eargs *ea,
71 : const void *vptr)
72 : {
73 0 : const uint8_t *id = vptr;
74 :
75 0 : if (!id)
76 0 : return bputs(buf, "(null)");
77 :
78 0 : return bprintfrr(buf, "%02x%02x.%02x%02x.%02x%02x.%02x",
79 0 : id[0], id[1], id[2], id[3], id[4], id[5], id[6]);
80 : }
81 :
82 : /**
83 : * Print ISO LSP Fragment System ID as 0000.0000.0000.00-00
84 : *
85 : * @param Print buffer
86 : * @param Print argument
87 : * @param Pointer to the System ID to be printed
88 : *
89 : * @return Number of printed characters
90 : */
91 4 : printfrr_ext_autoreg_p("LS", printfrr_iso_frag_id);
92 0 : static ssize_t printfrr_iso_frag_id(struct fbuf *buf, struct printfrr_eargs *ea,
93 : const void *vptr)
94 : {
95 0 : const uint8_t *id = vptr;
96 :
97 0 : if (!id)
98 0 : return bputs(buf, "(null)");
99 :
100 0 : return bprintfrr(buf, "%02x%02x.%02x%02x.%02x%02x.%02x-%02x",
101 0 : id[0], id[1], id[2], id[3], id[4], id[5], id[6],
102 0 : id[7]);
103 : }
104 :
105 : /**
106 : * Print ISO Network address as 00.0000.0000.0000 ... with the System ID
107 : * as 0000.0000.0000.00 when long 'l' option is added to '%pIS'
108 : *
109 : * @param Print buffer
110 : * @param Print argument
111 : * @param Pointer to the ISO Network address
112 : *
113 : * @return Number of printed characters
114 : */
115 4 : printfrr_ext_autoreg_p("IS", printfrr_iso_addr);
116 0 : static ssize_t printfrr_iso_addr(struct fbuf *buf, struct printfrr_eargs *ea,
117 : const void *vptr)
118 : {
119 0 : const struct iso_address *ia = vptr;
120 0 : uint8_t len = 0;
121 0 : int i = 0;
122 0 : ssize_t ret = 0;
123 :
124 0 : if (ea->fmt[0] == 'l') {
125 0 : len = 7; /* ISO SYSTEM ID + 1 */
126 0 : ea->fmt++;
127 : }
128 :
129 0 : if (!ia)
130 0 : return bputs(buf, "(null)");
131 :
132 0 : len += ia->addr_len;
133 0 : while (i < len) {
134 : /* No dot for odd index and at the end of address */
135 0 : if ((i & 1) || (i == (len - 1)))
136 0 : ret += bprintfrr(buf, "%02x", ia->area_addr[i]);
137 : else
138 0 : ret += bprintfrr(buf, "%02x.", ia->area_addr[i]);
139 0 : i++;
140 : }
141 :
142 : return ret;
143 : }
144 :
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