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authorAlberto Gonzalez Iniesta <agi@inittab.org>2016-12-27 18:25:47 +0100
committerAlberto Gonzalez Iniesta <agi@inittab.org>2016-12-27 18:25:47 +0100
commit79f3537f69e125f19f59c36aa090120a63186a54 (patch)
tree2089a3b7dac990841dbc2e4d9b2f535b82dbb0af /sample/sample-plugins/log/log_v3.c
parentf2137fedb30cb87448eb03b2f288920df6187571 (diff)
parent3a2bbdb05ca6a6996e424c9fb225cb0d53804125 (diff)
Merge tag 'upstream/2.4.0'
Upstream version 2.4.0
Diffstat (limited to 'sample/sample-plugins/log/log_v3.c')
-rw-r--r--sample/sample-plugins/log/log_v3.c369
1 files changed, 201 insertions, 168 deletions
diff --git a/sample/sample-plugins/log/log_v3.c b/sample/sample-plugins/log/log_v3.c
index 275b1e7..9037225 100644
--- a/sample/sample-plugins/log/log_v3.c
+++ b/sample/sample-plugins/log/log_v3.c
@@ -5,7 +5,7 @@
* packet encryption, packet authentication, and
* packet compression.
*
- * Copyright (C) 2002-2009 OpenVPN Technologies, Inc. <sales@openvpn.net>
+ * Copyright (C) 2002-2017 OpenVPN Technologies, Inc. <sales@openvpn.net>
* Copyright (C) 2010 David Sommerseth <dazo@users.sourceforge.net>
*
* This program is free software; you can redistribute it and/or modify
@@ -44,8 +44,8 @@
* Our context, where we keep our state.
*/
struct plugin_context {
- const char *username;
- const char *password;
+ const char *username;
+ const char *password;
};
/*
@@ -54,205 +54,238 @@ struct plugin_context {
* if found or NULL otherwise.
*/
static const char *
-get_env (const char *name, const char *envp[])
+get_env(const char *name, const char *envp[])
{
- if (envp)
+ if (envp)
{
- int i;
- const int namelen = strlen (name);
- for (i = 0; envp[i]; ++i)
- {
- if (!strncmp (envp[i], name, namelen))
- {
- const char *cp = envp[i] + namelen;
- if (*cp == '=')
- return cp + 1;
- }
- }
+ int i;
+ const int namelen = strlen(name);
+ for (i = 0; envp[i]; ++i)
+ {
+ if (!strncmp(envp[i], name, namelen))
+ {
+ const char *cp = envp[i] + namelen;
+ if (*cp == '=')
+ {
+ return cp + 1;
+ }
+ }
+ }
}
- return NULL;
+ return NULL;
}
OPENVPN_EXPORT int
-openvpn_plugin_open_v3 (const int v3structver,
- struct openvpn_plugin_args_open_in const *args,
- struct openvpn_plugin_args_open_return *ret)
+openvpn_plugin_open_v3(const int v3structver,
+ struct openvpn_plugin_args_open_in const *args,
+ struct openvpn_plugin_args_open_return *ret)
{
- struct plugin_context *context = NULL;
-
- /* Check that we are API compatible */
- if( v3structver != OPENVPN_PLUGINv3_STRUCTVER ) {
- printf("log_v3: ** ERROR ** Incompatible plug-in interface between this plug-in and OpenVPN\n");
- return OPENVPN_PLUGIN_FUNC_ERROR;
- }
-
- if( args->ssl_api != SSLAPI_OPENSSL ) {
- printf("This plug-in can only be used against OpenVPN with OpenSSL\n");
- return OPENVPN_PLUGIN_FUNC_ERROR;
- }
-
- /* Print some version information about the OpenVPN process using this plug-in */
- printf("log_v3: OpenVPN %s (Major: %i, Minor: %i, Patch: %s)\n",
- args->ovpn_version, args->ovpn_version_major,
- args->ovpn_version_minor, args->ovpn_version_patch);
-
- /* Which callbacks to intercept. */
- ret->type_mask =
- OPENVPN_PLUGIN_MASK (OPENVPN_PLUGIN_UP) |
- OPENVPN_PLUGIN_MASK (OPENVPN_PLUGIN_DOWN) |
- OPENVPN_PLUGIN_MASK (OPENVPN_PLUGIN_ROUTE_UP) |
- OPENVPN_PLUGIN_MASK (OPENVPN_PLUGIN_IPCHANGE) |
- OPENVPN_PLUGIN_MASK (OPENVPN_PLUGIN_TLS_VERIFY) |
- OPENVPN_PLUGIN_MASK (OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY) |
- OPENVPN_PLUGIN_MASK (OPENVPN_PLUGIN_CLIENT_CONNECT_V2) |
- OPENVPN_PLUGIN_MASK (OPENVPN_PLUGIN_CLIENT_DISCONNECT) |
- OPENVPN_PLUGIN_MASK (OPENVPN_PLUGIN_LEARN_ADDRESS) |
- OPENVPN_PLUGIN_MASK (OPENVPN_PLUGIN_TLS_FINAL);
-
-
- /* Allocate our context */
- context = (struct plugin_context *) calloc (1, sizeof (struct plugin_context));
-
- /* Set the username/password we will require. */
- context->username = "foo";
- context->password = "bar";
-
- /* Point the global context handle to our newly created context */
- ret->handle = (void *) context;
-
- return OPENVPN_PLUGIN_FUNC_SUCCESS;
+ struct plugin_context *context = NULL;
+
+ /* Check that we are API compatible */
+ if (v3structver != OPENVPN_PLUGINv3_STRUCTVER)
+ {
+ printf("log_v3: ** ERROR ** Incompatible plug-in interface between this plug-in and OpenVPN\n");
+ return OPENVPN_PLUGIN_FUNC_ERROR;
+ }
+
+ if (args->ssl_api != SSLAPI_OPENSSL)
+ {
+ printf("This plug-in can only be used against OpenVPN with OpenSSL\n");
+ return OPENVPN_PLUGIN_FUNC_ERROR;
+ }
+
+ /* Print some version information about the OpenVPN process using this plug-in */
+ printf("log_v3: OpenVPN %s (Major: %i, Minor: %i, Patch: %s)\n",
+ args->ovpn_version, args->ovpn_version_major,
+ args->ovpn_version_minor, args->ovpn_version_patch);
+
+ /* Which callbacks to intercept. */
+ ret->type_mask =
+ OPENVPN_PLUGIN_MASK(OPENVPN_PLUGIN_UP)
+ |OPENVPN_PLUGIN_MASK(OPENVPN_PLUGIN_DOWN)
+ |OPENVPN_PLUGIN_MASK(OPENVPN_PLUGIN_ROUTE_UP)
+ |OPENVPN_PLUGIN_MASK(OPENVPN_PLUGIN_IPCHANGE)
+ |OPENVPN_PLUGIN_MASK(OPENVPN_PLUGIN_TLS_VERIFY)
+ |OPENVPN_PLUGIN_MASK(OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY)
+ |OPENVPN_PLUGIN_MASK(OPENVPN_PLUGIN_CLIENT_CONNECT_V2)
+ |OPENVPN_PLUGIN_MASK(OPENVPN_PLUGIN_CLIENT_DISCONNECT)
+ |OPENVPN_PLUGIN_MASK(OPENVPN_PLUGIN_LEARN_ADDRESS)
+ |OPENVPN_PLUGIN_MASK(OPENVPN_PLUGIN_TLS_FINAL);
+
+
+ /* Allocate our context */
+ context = (struct plugin_context *) calloc(1, sizeof(struct plugin_context));
+
+ /* Set the username/password we will require. */
+ context->username = "foo";
+ context->password = "bar";
+
+ /* Point the global context handle to our newly created context */
+ ret->handle = (void *) context;
+
+ return OPENVPN_PLUGIN_FUNC_SUCCESS;
}
void
-show (const int type, const char *argv[], const char *envp[])
+show(const int type, const char *argv[], const char *envp[])
{
- size_t i;
- switch (type)
+ size_t i;
+ switch (type)
{
- case OPENVPN_PLUGIN_UP:
- printf ("OPENVPN_PLUGIN_UP\n");
- break;
- case OPENVPN_PLUGIN_DOWN:
- printf ("OPENVPN_PLUGIN_DOWN\n");
- break;
- case OPENVPN_PLUGIN_ROUTE_UP:
- printf ("OPENVPN_PLUGIN_ROUTE_UP\n");
- break;
- case OPENVPN_PLUGIN_IPCHANGE:
- printf ("OPENVPN_PLUGIN_IPCHANGE\n");
- break;
- case OPENVPN_PLUGIN_TLS_VERIFY:
- printf ("OPENVPN_PLUGIN_TLS_VERIFY\n");
- break;
- case OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY:
- printf ("OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY\n");
- break;
- case OPENVPN_PLUGIN_CLIENT_CONNECT_V2:
- printf ("OPENVPN_PLUGIN_CLIENT_CONNECT_V2\n");
- break;
- case OPENVPN_PLUGIN_CLIENT_DISCONNECT:
- printf ("OPENVPN_PLUGIN_CLIENT_DISCONNECT\n");
- break;
- case OPENVPN_PLUGIN_LEARN_ADDRESS:
- printf ("OPENVPN_PLUGIN_LEARN_ADDRESS\n");
- break;
- case OPENVPN_PLUGIN_TLS_FINAL:
- printf ("OPENVPN_PLUGIN_TLS_FINAL\n");
- break;
- default:
- printf ("OPENVPN_PLUGIN_?\n");
- break;
+ case OPENVPN_PLUGIN_UP:
+ printf("OPENVPN_PLUGIN_UP\n");
+ break;
+
+ case OPENVPN_PLUGIN_DOWN:
+ printf("OPENVPN_PLUGIN_DOWN\n");
+ break;
+
+ case OPENVPN_PLUGIN_ROUTE_UP:
+ printf("OPENVPN_PLUGIN_ROUTE_UP\n");
+ break;
+
+ case OPENVPN_PLUGIN_IPCHANGE:
+ printf("OPENVPN_PLUGIN_IPCHANGE\n");
+ break;
+
+ case OPENVPN_PLUGIN_TLS_VERIFY:
+ printf("OPENVPN_PLUGIN_TLS_VERIFY\n");
+ break;
+
+ case OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY:
+ printf("OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY\n");
+ break;
+
+ case OPENVPN_PLUGIN_CLIENT_CONNECT_V2:
+ printf("OPENVPN_PLUGIN_CLIENT_CONNECT_V2\n");
+ break;
+
+ case OPENVPN_PLUGIN_CLIENT_DISCONNECT:
+ printf("OPENVPN_PLUGIN_CLIENT_DISCONNECT\n");
+ break;
+
+ case OPENVPN_PLUGIN_LEARN_ADDRESS:
+ printf("OPENVPN_PLUGIN_LEARN_ADDRESS\n");
+ break;
+
+ case OPENVPN_PLUGIN_TLS_FINAL:
+ printf("OPENVPN_PLUGIN_TLS_FINAL\n");
+ break;
+
+ default:
+ printf("OPENVPN_PLUGIN_?\n");
+ break;
}
- printf ("ARGV\n");
- for (i = 0; argv[i] != NULL; ++i)
- printf ("%d '%s'\n", (int)i, argv[i]);
+ printf("ARGV\n");
+ for (i = 0; argv[i] != NULL; ++i)
+ printf("%d '%s'\n", (int)i, argv[i]);
- printf ("ENVP\n");
- for (i = 0; envp[i] != NULL; ++i)
- printf ("%d '%s'\n", (int)i, envp[i]);
+ printf("ENVP\n");
+ for (i = 0; envp[i] != NULL; ++i)
+ printf("%d '%s'\n", (int)i, envp[i]);
}
static void
-x509_print_info (X509 *x509crt)
+x509_print_info(X509 *x509crt)
{
- int i, n;
- int fn_nid;
- ASN1_OBJECT *fn;
- ASN1_STRING *val;
- X509_NAME *x509_name;
- X509_NAME_ENTRY *ent;
- const char *objbuf;
- unsigned char *buf;
-
- x509_name = X509_get_subject_name (x509crt);
- n = X509_NAME_entry_count (x509_name);
- for (i = 0; i < n; ++i)
+ int i, n;
+ int fn_nid;
+ ASN1_OBJECT *fn;
+ ASN1_STRING *val;
+ X509_NAME *x509_name;
+ X509_NAME_ENTRY *ent;
+ const char *objbuf;
+ unsigned char *buf;
+
+ x509_name = X509_get_subject_name(x509crt);
+ n = X509_NAME_entry_count(x509_name);
+ for (i = 0; i < n; ++i)
{
- ent = X509_NAME_get_entry (x509_name, i);
- if (!ent)
- continue;
- fn = X509_NAME_ENTRY_get_object (ent);
- if (!fn)
- continue;
- val = X509_NAME_ENTRY_get_data (ent);
- if (!val)
- continue;
- fn_nid = OBJ_obj2nid (fn);
- if (fn_nid == NID_undef)
- continue;
- objbuf = OBJ_nid2sn (fn_nid);
- if (!objbuf)
- continue;
- buf = (unsigned char *)1; /* bug in OpenSSL 0.9.6b ASN1_STRING_to_UTF8 requires this workaround */
- if (ASN1_STRING_to_UTF8 (&buf, val) <= 0)
- continue;
-
- printf("X509 %s: %s\n", objbuf, (char *)buf);
- OPENSSL_free (buf);
+ ent = X509_NAME_get_entry(x509_name, i);
+ if (!ent)
+ {
+ continue;
+ }
+ fn = X509_NAME_ENTRY_get_object(ent);
+ if (!fn)
+ {
+ continue;
+ }
+ val = X509_NAME_ENTRY_get_data(ent);
+ if (!val)
+ {
+ continue;
+ }
+ fn_nid = OBJ_obj2nid(fn);
+ if (fn_nid == NID_undef)
+ {
+ continue;
+ }
+ objbuf = OBJ_nid2sn(fn_nid);
+ if (!objbuf)
+ {
+ continue;
+ }
+ buf = (unsigned char *)1; /* bug in OpenSSL 0.9.6b ASN1_STRING_to_UTF8 requires this workaround */
+ if (ASN1_STRING_to_UTF8(&buf, val) <= 0)
+ {
+ continue;
+ }
+
+ printf("X509 %s: %s\n", objbuf, (char *)buf);
+ OPENSSL_free(buf);
}
}
OPENVPN_EXPORT int
-openvpn_plugin_func_v3 (const int version,
- struct openvpn_plugin_args_func_in const *args,
- struct openvpn_plugin_args_func_return *retptr)
+openvpn_plugin_func_v3(const int version,
+ struct openvpn_plugin_args_func_in const *args,
+ struct openvpn_plugin_args_func_return *retptr)
{
- struct plugin_context *context = (struct plugin_context *) args->handle;
+ struct plugin_context *context = (struct plugin_context *) args->handle;
- printf("\nopenvpn_plugin_func_v3() :::::>> ");
- show (args->type, args->argv, args->envp);
+ printf("\nopenvpn_plugin_func_v3() :::::>> ");
+ show(args->type, args->argv, args->envp);
+
+ /* Dump some X509 information if we're in the TLS_VERIFY phase */
+ if ((args->type == OPENVPN_PLUGIN_TLS_VERIFY) && args->current_cert)
+ {
+ printf("---- X509 Subject information ----\n");
+ printf("Certificate depth: %i\n", args->current_cert_depth);
+ x509_print_info(args->current_cert);
+ printf("----------------------------------\n");
+ }
- /* Dump some X509 information if we're in the TLS_VERIFY phase */
- if ((args->type == OPENVPN_PLUGIN_TLS_VERIFY) && args->current_cert ) {
- printf("---- X509 Subject information ----\n");
- printf("Certificate depth: %i\n", args->current_cert_depth);
- x509_print_info(args->current_cert);
- printf("----------------------------------\n");
- }
+ /* check entered username/password against what we require */
+ if (args->type == OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY)
+ {
+ /* get username/password from envp string array */
+ const char *username = get_env("username", args->envp);
+ const char *password = get_env("password", args->envp);
- /* check entered username/password against what we require */
- if (args->type == OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY)
+ if (username && !strcmp(username, context->username)
+ && password && !strcmp(password, context->password))
+ {
+ return OPENVPN_PLUGIN_FUNC_SUCCESS;
+ }
+ else
+ {
+ return OPENVPN_PLUGIN_FUNC_ERROR;
+ }
+ }
+ else
{
- /* get username/password from envp string array */
- const char *username = get_env ("username", args->envp);
- const char *password = get_env ("password", args->envp);
-
- if (username && !strcmp (username, context->username)
- && password && !strcmp (password, context->password))
- return OPENVPN_PLUGIN_FUNC_SUCCESS;
- else
- return OPENVPN_PLUGIN_FUNC_ERROR;
+ return OPENVPN_PLUGIN_FUNC_SUCCESS;
}
- else
- return OPENVPN_PLUGIN_FUNC_SUCCESS;
}
OPENVPN_EXPORT void
-openvpn_plugin_close_v1 (openvpn_plugin_handle_t handle)
+openvpn_plugin_close_v1(openvpn_plugin_handle_t handle)
{
- struct plugin_context *context = (struct plugin_context *) handle;
- free (context);
+ struct plugin_context *context = (struct plugin_context *) handle;
+ free(context);
}