summaryrefslogtreecommitdiff
path: root/mu/acl.c
blob: 4f796c582e0062f0462e4f8d2b4fb9e681856108 (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
/* GNU Mailutils -- a suite of utilities for electronic mail
   Copyright (C) 2010, 2011 Free Software Foundation, Inc.

   GNU Mailutils 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, or (at your option)
   any later version.

   GNU Mailutils 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 GNU Mailutils.  If not, see <http://www.gnu.org/licenses/>. */

#if defined(HAVE_CONFIG_H)
# include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <sys/un.h>
#include <arpa/inet.h>
#include <mailutils/mailutils.h>
#include <mailutils/libcfg.h>
#include "argp.h"
#include "mu.h"
#include "xalloc.h"

static char acl_doc[] = N_("mu acl - test access control lists.");
char acl_docstring[] = N_("test access control lists");
static char acl_args_doc[] = N_("ADDRESS [ADDRESS...]");

static struct argp_option acl_options[] = {
  { "file", 'f', N_("FILE"), 0, N_("read ACLs from FILE") },
  { "path", 'p', N_("PATH"), 0,
    N_("path to the ACL in the configuration tree") },
  { NULL }
};

static char *input_file_name;
static struct mu_sockaddr *target_sa;
static mu_acl_t acl;
static const char *path = "acl";

static error_t
acl_parse_opt (int key, char *arg, struct argp_state *state)
{
  switch (key)
    {
    case 'f':
      input_file_name = arg;
      break;

    case 'p':
      path = arg;
      break;
      
    default:
      return ARGP_ERR_UNKNOWN;
    }
  return 0;
}

static struct argp acl_argp = {
  acl_options,
  acl_parse_opt,
  acl_args_doc,
  acl_doc,
  NULL,
  NULL,
  NULL
};


static struct mu_cfg_param acl_cfg_param[] = {
  { "acl", mu_cfg_section, &acl, 0, NULL, "access control list" },
  { NULL }
};

int
mutool_acl (int argc, char **argv)
{
  int rc, index;
  mu_acl_result_t result;
  mu_cfg_tree_t *tree = NULL, *temp_tree = NULL;
  mu_cfg_node_t *node;
  
  if (argp_parse (&acl_argp, argc, argv, ARGP_IN_ORDER, &index, NULL))
    return 1;

  argc -= index;
  argv += index;

  if (argc == 0)
    {
      mu_error (_("not enough arguments"));
      return 1;
    }

  if (input_file_name)
    {
      mu_load_site_rcfile = 0;
      mu_load_user_rcfile = 0;
      mu_load_rcfile = input_file_name;
    }

  mu_acl_cfg_init ();
  if (mu_libcfg_parse_config (&tree))
    return 1;
  if (!tree)
    return 0;
  
  if (mu_cfg_find_node (tree, path, &node))
    {
      mu_error (_("cannot find node: %s"), path);
      return 1;
    }

  mu_cfg_tree_create (&temp_tree);
  mu_cfg_tree_add_node (temp_tree, node);
  rc = mu_cfg_tree_reduce (temp_tree, NULL, acl_cfg_param, NULL);
  if (rc)
    return 1;
  if (!acl)
    {
      mu_error (_("No ACL found in config"));
      return 1;
    }
  
  while (argc--)
    {
      const char *ap = *argv++;

      rc = mu_sockaddr_from_node (&target_sa, ap, NULL, NULL);
      if (rc)
	{
	  mu_error ("mu_sockaddr_from_node: %s", mu_strerror (rc));
	  exit (1);
	}

      mu_printf ("Testing %s:\n", ap);
      rc = mu_acl_check_sockaddr (acl, target_sa->addr, target_sa->addrlen,
				  &result);
      mu_sockaddr_free_list (target_sa);
      if (rc)
	{
	  mu_error ("mu_acl_check_sockaddr failed: %s", mu_strerror (rc));
	  return 1;
	}

      switch (result)
	{
	case mu_acl_result_undefined:
	  mu_printf ("%s: undefined\n", ap);
	  break;
      
	case mu_acl_result_accept:
	  mu_printf ("%s: accept\n", ap);
	  break;

	case mu_acl_result_deny:
	  mu_printf ("%s: deny\n", ap);
	  break;
	}
    }

  mu_cfg_destroy_tree (&tree);
  mu_cfg_destroy_tree (&temp_tree);

  return 0;
}

/*
  MU Setup: acl
  mu-handler: mutool_acl
  mu-docstring: acl_docstring
  End MU Setup:
*/

Return to:

Send suggestions and report system problems to the System administrator.