summaryrefslogtreecommitdiffstats
path: root/tests/libknot/test_control.c
blob: 3467be47807ab1915dfb2844e025c725bb6baa59 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
/*  Copyright (C) 2024 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program 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 General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

#include <stdlib.h>
#include <string.h>
#include <sys/wait.h>
#include <unistd.h>
#include <tap/basic.h>
#include <tap/files.h>

#define CTL_BUFF_SIZE	18
#include "libknot/control/control.c"

#define fake_ok(condition, msg, ...) \
	if (!(condition)) { \
		if (msg != NULL) { \
			printf("error: " msg "\n", ##__VA_ARGS__); \
		} \
		exit(-1); \
	}

static void ctl_client(const char *socket, size_t argc, knot_ctl_data_t *argv)
{
	knot_ctl_t *ctl = knot_ctl_alloc();
	fake_ok(ctl != NULL, "Allocate control");

	int ret;
	for (int i = 0; i < 20; i++) {
		ret = knot_ctl_connect(ctl, socket);
		if (ret == KNOT_EOK) {
			break;
		}
		usleep(100000);
	}
	fake_ok(ret == KNOT_EOK, "Connect to socket");

	diag("BEGIN: Client -> Server");

	if (argc > 0) {
		for (size_t i = 0; i < argc; i++) {
			if (argv[i][KNOT_CTL_IDX_CMD] != NULL &&
			    argv[i][KNOT_CTL_IDX_CMD][0] == '\0') {
				ret = knot_ctl_send(ctl, KNOT_CTL_TYPE_BLOCK, NULL);
				fake_ok(ret == KNOT_EOK, "Client send data block end type");
			} else {
				ret = knot_ctl_send(ctl, KNOT_CTL_TYPE_DATA, &argv[i]);
				fake_ok(ret == KNOT_EOK, "Client send data %zu", i);
			}
		}
	}

	ret = knot_ctl_send(ctl, KNOT_CTL_TYPE_END, NULL);
	fake_ok(ret == KNOT_EOK, "Client send final data");

	diag("END: Client -> Server");
	diag("BEGIN: Client <- Server");

	size_t count = 0;
	knot_ctl_data_t data;
	knot_ctl_type_t type = KNOT_CTL_TYPE_DATA;
	while ((ret = knot_ctl_receive(ctl, &type, &data)) == KNOT_EOK) {
		if (type == KNOT_CTL_TYPE_END) {
			break;
		}
		if (argv[count][KNOT_CTL_IDX_CMD] != NULL &&
		    argv[count][KNOT_CTL_IDX_CMD][0] == '\0') {
			fake_ok(type == KNOT_CTL_TYPE_BLOCK, "Receive block end type");
		} else {
			fake_ok(type == KNOT_CTL_TYPE_DATA, "Check data type");
			for (size_t i = 0; i < KNOT_CTL_IDX__COUNT; i++) {
				fake_ok((data[i] == NULL && argv[count][i] == NULL) ||
					(data[i] != NULL && argv[count][i] != NULL),
					"Client compare input item occupation %zu", i);
				if (data[i] == NULL) {
					continue;
				}

				fake_ok(strcmp(data[i], argv[count][i]) == 0,
					"Client compare input item '%s", argv[count][i]);
			}
		}
		count++;
	}
	fake_ok(ret == KNOT_EOK, "Receive OK check");
	fake_ok(type == KNOT_CTL_TYPE_END, "Receive EOF type");
	fake_ok(count == argc, "Client compare input count '%zu'", argc);

	diag("END: Client <- Server");

	knot_ctl_close(ctl);
	knot_ctl_free(ctl);
}

static void ctl_server(const char *socket, size_t argc, knot_ctl_data_t *argv)
{
	knot_ctl_t *ctl = knot_ctl_alloc();
	ok(ctl != NULL, "Allocate control");

	int ret = knot_ctl_bind(ctl, socket, 5);
	is_int(KNOT_EOK, ret, "Bind control socket");

	ret = knot_ctl_accept(ctl);
	is_int(KNOT_EOK, ret, "Accept a connection");

	diag("BEGIN: Server <- Client");

	size_t count = 0;
	knot_ctl_data_t data;
	knot_ctl_type_t type = KNOT_CTL_TYPE_DATA;
	while ((ret = knot_ctl_receive(ctl, &type, &data)) == KNOT_EOK) {
		if (type == KNOT_CTL_TYPE_END) {
			break;
		}
		if (argv[count][KNOT_CTL_IDX_CMD] != NULL &&
		    argv[count][KNOT_CTL_IDX_CMD][0] == '\0') {
			ok(type == KNOT_CTL_TYPE_BLOCK, "Receive block end type");
		} else {
			ok(type == KNOT_CTL_TYPE_DATA, "Check data type");
			for (size_t i = 0; i < KNOT_CTL_IDX__COUNT; i++) {
				ok((data[i] == NULL && argv[count][i] == NULL) ||
				   (data[i] != NULL && argv[count][i] != NULL),
				   "Server compare input item occupation %zu", i);
				if (data[i] == NULL) {
					continue;
				}

				ok(strcmp(data[i], argv[count][i]) == 0,
				   "Server compare input item '%s", argv[count][i]);
			}
		}
		count++;
	}
	is_int(KNOT_EOK, ret, "Receive OK check");
	ok(type == KNOT_CTL_TYPE_END, "Receive EOF type");
	ok(count == argc, "Server compare input count '%zu'", argc);

	diag("END: Server <- Client");
	diag("BEGIN: Server -> Client");

	if (argc > 0) {
		for (size_t i = 0; i < argc; i++) {
			if (argv[i][KNOT_CTL_IDX_CMD] != NULL &&
			    argv[i][KNOT_CTL_IDX_CMD][0] == '\0') {
				ret = knot_ctl_send(ctl, KNOT_CTL_TYPE_BLOCK, NULL);
				is_int(KNOT_EOK, ret, "Client send data block end type");
			} else {
				ret = knot_ctl_send(ctl, KNOT_CTL_TYPE_DATA, &argv[i]);
				is_int(KNOT_EOK, ret, "Server send data %zu", i);
			}
		}
	}

	ret = knot_ctl_send(ctl, KNOT_CTL_TYPE_END, NULL);
	is_int(KNOT_EOK, ret, "Server send final data");

	diag("END: Server -> Client");

	knot_ctl_close(ctl);
	knot_ctl_unbind(ctl);
	knot_ctl_free(ctl);
}

static void test_client_server_client(void)
{
	char *socket = test_mktemp();
	ok(socket != NULL, "Make a temporary socket file '%s'", socket);

	size_t data_len = 5;
	knot_ctl_data_t data[] = {
		{ "command", "error", "section", "item", "identifier",
		  "zone", "owner", "ttl", "type", "data" },
		{ [KNOT_CTL_IDX_DATA] = "\x01\x02" },
		{ [KNOT_CTL_IDX_CMD] = "\0" }, // This means block end in this test!
		{ NULL },
		{ [KNOT_CTL_IDX_ERROR] = "Ultra long message" }
	};

	// Fork a client process.
	pid_t child_pid = fork();
	if (child_pid == -1) {
		ok(child_pid >= 0, "Process fork");
		return;
	}
	if (child_pid == 0) {
		ctl_client(socket, data_len, data);
		free(socket);
		return;
	} else {
		ctl_server(socket, data_len, data);
	}

	int status = 0;
	wait(&status);
	ok(WIFEXITED(status), "Wait for client");

	test_rm_rf(socket);
	free(socket);
}

int main(int argc, char *argv[])
{
	plan_lazy();

	diag("Client -> Server -> Client");
	test_client_server_client();

	return 0;
}