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
|
/* $Id$
*****************************************************************************
*
* File: fw_util_ipf.c
*
* Author: Damien S. Stuart
*
* Purpose: Fwknop routines for managing ipf firewall rules.
*
* Copyright 2010 Damien Stuart (dstuart@dstuart.org)
*
* License (GNU Public License):
*
* 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 2
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
*****************************************************************************
*/
#include "fwknopd_common.h"
#if FIREWALL_IPF
#include "fw_util.h"
#include "utils.h"
#include "log_msg.h"
#include "config_init.h" /* for the IS_EMPTY_LINE macro */
#include "extcmd.h"
#include "access.h"
static struct fw_config fwc;
static char cmd_buf[CMD_BUFSIZE];
static char err_buf[CMD_BUFSIZE];
static char cmd_out[STANDARD_CMD_OUT_BUFSIZE];
/* Print all firewall rules currently instantiated by the running fwknopd
* daemon to stdout.
*/
int
fw_dump_rules(fko_srv_options_t *opts)
{
int i;
int res, got_err = 0;
zero_cmd_buffers();
/* TODO: Implement or get rid of me */
return(got_err);
}
void
fw_config_init(fko_srv_options_t *opts)
{
/* TODO: Implement me */
memset(&fwc, 0x0, sizeof(struct fw_config));
/* Set our firewall exe command path (iptables in most cases).
*/
strlcpy(fwc.fw_command, opts->config[CONF_FIREWALL_EXE], MAX_PATH_LEN);
/* Let us find it via our opts struct as well.
*/
opts->fw_config = &fwc;
return;
}
void
fw_initialize(fko_srv_options_t *opts)
{
int res = 0;
/* TODO: Implement me */
if(res != 0)
{
fprintf(stderr, "Warning: Errors detected during fwknop custom chain creation.\n");
exit(EXIT_FAILURE);
}
}
int
fw_cleanup(void)
{
/* TODO: Implement or get rid of me */
return(0);
}
/****************************************************************************/
/* Rule Processing - Create an access request...
*/
int
process_spa_request(fko_srv_options_t *opts, spa_data_t *spadat)
{
/* TODO: Implement me */
char nat_ip[16] = {0};
char *ndx;
unsigned int nat_port = 0;;
acc_port_list_t *port_list = NULL;
acc_port_list_t *ple;
unsigned int fst_proto;
unsigned int fst_port;
int res = 0;
time_t now;
unsigned int exp_ts;
/* Parse and expand our access message.
*/
expand_acc_port_list(&port_list, spadat->spa_message_remain);
/* Start at the top of the proto-port list...
*/
ple = port_list;
/* Remember the first proto/port combo in case we need them
* for NAT access requests.
*/
fst_proto = ple->proto;
fst_port = ple->port;
/* Set our expire time value.
*/
time(&now);
exp_ts = now + spadat->fw_access_timeout;
/* TODO: Implement me */
return(res);
}
/* Iterate over the configure firewall access chains and purge expired
* firewall rules.
*/
void
check_firewall_rules(fko_srv_options_t *opts)
{
/* TODO: Implement me */
char exp_str[12];
char rule_num_str[6];
char *ndx, *rn_start, *rn_end, *tmp_mark;
int i, res, rn_offset;
time_t now, rule_exp, min_exp = 0;
time(&now);
zero_cmd_buffers();
}
#endif /* FIREWALL_IPF */
/***EOF***/
|
