summaryrefslogtreecommitdiff
path: root/lib/radsec.c
blob: 53b594200c3266161ef5b009655b024ba08007d8 (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
/* Copyright 2010, 2011 NORDUnet A/S. All rights reserved.
   See the file COPYING for licensing information.  */

#if defined HAVE_CONFIG_H
#include <config.h>
#endif

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <libgen.h>
#include <assert.h>

#include <freeradius/libradius.h>
#include <event2/event.h>
#include <event2/util.h>
#include <radsec/radsec.h>
#include <radsec/radsec-impl.h>
#include "err.h"
#include "debug.h"
#include "rsp_debug.h"
#if defined (RS_ENABLE_TLS)
#include <regex.h>
#include "rsp_list.h"
#include "../radsecproxy.h"
#endif

/* Public functions.  */
int
rs_context_create (struct rs_context **ctx)
{
  struct rs_context *h;

  h = calloc (1, sizeof(*h));
  if (h == NULL)
    return RSE_NOMEM;

#if defined (RS_ENABLE_TLS)
  ssl_init ();
#endif
#if defined (DEBUG)
  fr_log_fp = stderr;
  fr_debug_flag = 1;
#endif
  debug_init ("libradsec");	/* radsecproxy compat, FIXME: remove */

  fr_randinit (&h->fr_randctx, 0);
  fr_rand_seed (NULL, 0);

  if (ctx != NULL)
    *ctx = h;

  return RSE_OK;
}

/** Initialize freeradius dictionary.  */
int
rs_context_init_freeradius_dict (struct rs_context *ctx, const char *dict)
{
  int r = RSE_OK;
  size_t dictlen;
  char *dir = NULL;
  char *fn = NULL;

  if (dict == NULL)
    if (ctx->config != NULL && ctx->config->dictionary)
      dict = ctx->config->dictionary;

  if (dict == NULL)
    dict = RS_FREERADIUS_DICT;

  dictlen = strlen (dict);
  dir = rs_calloc (ctx, 1, dictlen + 1);
  fn = rs_calloc (ctx, 1, dictlen + 1);
  if (dir == NULL || fn == NULL)
    {
      r = rs_err_ctx_push_fl (ctx, RSE_NOMEM, __FILE__, __LINE__, NULL);
      goto out;
    }
  strncpy (dir, dict, dictlen);
  strncpy (fn, dict, dictlen);

  if (dict_init (dirname (dir), basename (fn)) < 0)
    {
      r = rs_err_ctx_push_fl (ctx, RSE_FR, __FILE__, __LINE__,
			      "failing dict_init(\"%s\")", dict);
      goto out;
    }

 out:
  if (dir)
    rs_free (ctx, dir);
  if (fn)
    rs_free (ctx, fn);
  return r;
}

struct rs_error *
rs_resolv (struct evutil_addrinfo **addr,
	   rs_conn_type_t type,
	   const char *hostname,
	   const char *service)
{
  int err;
  struct evutil_addrinfo hints, *res = NULL;

  memset (&hints, 0, sizeof(struct evutil_addrinfo));
  hints.ai_family = AF_UNSPEC;
  hints.ai_flags = AI_ADDRCONFIG;
  switch (type)
    {
    case RS_CONN_TYPE_NONE:
      return err_create (RSE_INVALID_CONN, __FILE__, __LINE__, NULL, NULL);
    case RS_CONN_TYPE_TCP:
      /* Fall through.  */
    case RS_CONN_TYPE_TLS:
      hints.ai_socktype = SOCK_STREAM;
      hints.ai_protocol = IPPROTO_TCP;
      break;
    case RS_CONN_TYPE_UDP:
      /* Fall through.  */
    case RS_CONN_TYPE_DTLS:
      hints.ai_socktype = SOCK_DGRAM;
      hints.ai_protocol = IPPROTO_UDP;
      break;
    default:
      return err_create (RSE_INVALID_CONN, __FILE__, __LINE__, NULL, NULL);
    }
  err = evutil_getaddrinfo (hostname, service, &hints, &res);
  if (err)
    return err_create (RSE_BADADDR, __FILE__, __LINE__,
		       "%s:%s: bad host name or service name (%s)",
		       hostname, service, evutil_gai_strerror(err));
  *addr = res;			/* Simply use first result.  */
  return NULL;
}

void
rs_context_destroy (struct rs_context *ctx)
{
  struct rs_realm *r = NULL;
  struct rs_peer *p = NULL;

  if (ctx->config)
    {
      for (r = ctx->config->realms; r; )
	{
	  struct rs_realm *tmp = r;
	  for (p = r->peers; p; )
	    {
	      struct rs_peer *tmp = p;
	      if (p->addr)
		evutil_freeaddrinfo (p->addr);
	      p = p->next;
	      rs_free (ctx, tmp);
	    }
	  free (r->name);
          rs_free (ctx, r->transport_cred);
	  r = r->next;
	  rs_free (ctx, tmp);
	}
    }

  if (ctx->config)
    {
      if (ctx->config->cfg)
	{
	  cfg_free (ctx->config->cfg);
	  ctx->config->cfg = NULL;
	}
      rs_free (ctx, ctx->config);
    }

  free (ctx);
}

int
rs_context_set_alloc_scheme (struct rs_context *ctx,
			     struct rs_alloc_scheme *scheme)
{
  return rs_err_ctx_push_fl (ctx, RSE_NOSYS, __FILE__, __LINE__, NULL);
}