2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2012 The FreeBSD Foundation
6 * This software was developed by Edward Tomasz Napierala under sponsorship
7 * from the FreeBSD Foundation.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
47 keys = calloc(1, sizeof(*keys));
55 keys_delete(struct keys *keys)
58 free(keys->keys_data);
63 keys_load(struct keys *keys, const struct pdu *pdu)
69 if (pdu->pdu_data_len == 0)
72 if (pdu->pdu_data[pdu->pdu_data_len - 1] != '\0')
73 log_errx(1, "protocol error: key not NULL-terminated\n");
75 assert(keys->keys_data == NULL);
76 keys->keys_data_len = pdu->pdu_data_len;
77 keys->keys_data = malloc(keys->keys_data_len);
78 if (keys->keys_data == NULL)
80 memcpy(keys->keys_data, pdu->pdu_data, keys->keys_data_len);
83 * XXX: Review this carefully.
85 pair = keys->keys_data;
88 log_errx(1, "too many keys received");
90 pair_len = strlen(pair);
92 keys->keys_values[i] = pair;
93 keys->keys_names[i] = strsep(&keys->keys_values[i], "=");
94 if (keys->keys_names[i] == NULL || keys->keys_values[i] == NULL)
95 log_errx(1, "malformed keys");
96 log_debugx("key received: \"%s=%s\"",
97 keys->keys_names[i], keys->keys_values[i]);
99 pair += pair_len + 1; /* +1 to skip the terminating '\0'. */
100 if (pair == keys->keys_data + keys->keys_data_len)
102 assert(pair < keys->keys_data + keys->keys_data_len);
107 keys_save(struct keys *keys, struct pdu *pdu)
114 * XXX: Not particularly efficient.
117 for (i = 0; i < KEYS_MAX; i++) {
118 if (keys->keys_names[i] == NULL)
121 * +1 for '=', +1 for '\0'.
123 len += strlen(keys->keys_names[i]) +
124 strlen(keys->keys_values[i]) + 2;
132 log_err(1, "malloc");
134 pdu->pdu_data = data;
135 pdu->pdu_data_len = len;
137 for (i = 0; i < KEYS_MAX; i++) {
138 if (keys->keys_names[i] == NULL)
140 data += sprintf(data, "%s=%s",
141 keys->keys_names[i], keys->keys_values[i]);
142 data += 1; /* for '\0'. */
147 keys_find(struct keys *keys, const char *name)
152 * Note that we don't handle duplicated key names here,
153 * as they are not supposed to happen in requests, and if they do,
154 * it's an initiator error.
156 for (i = 0; i < KEYS_MAX; i++) {
157 if (keys->keys_names[i] == NULL)
159 if (strcmp(keys->keys_names[i], name) == 0)
160 return (keys->keys_values[i]);
166 keys_add(struct keys *keys, const char *name, const char *value)
170 log_debugx("key to send: \"%s=%s\"", name, value);
173 * Note that we don't check for duplicates here, as they are perfectly
174 * fine in responses, e.g. the "TargetName" keys in discovery sesion
177 for (i = 0; i < KEYS_MAX; i++) {
178 if (keys->keys_names[i] == NULL) {
179 keys->keys_names[i] = checked_strdup(name);
180 keys->keys_values[i] = checked_strdup(value);
184 log_errx(1, "too many keys");
188 keys_add_int(struct keys *keys, const char *name, int value)
193 ret = asprintf(&str, "%d", value);
195 log_err(1, "asprintf");
197 keys_add(keys, name, str);