/*
* Instantiate the module.
*/
static int mod_bootstrap(UNUSED CONF_SECTION *conf, void *instance)
{
rlm_dhcp_t *inst = instance;
DICT_ATTR const *da;
xlat_register("dhcp_options", dhcp_options_xlat, XLAT_DEFAULT_BUF_LEN, NULL, inst);
xlat_register("dhcp", dhcp_xlat, XLAT_DEFAULT_BUF_LEN, NULL, inst);
/*
* Fixup dictionary entry for DHCP-Paramter-Request-List adding all the options
*/
da = dict_attrbyvalue(PW_DHCP_PARAMETER_REQUEST_LIST, DHCP_MAGIC_VENDOR);
if (da) {
DICT_ATTR const *value;
int i;
/* No padding or termination options */
DEBUG3("Adding values for %s", da->name);
for (i = 1; i < 255; i++) {
value = dict_attrbyvalue(i, DHCP_MAGIC_VENDOR);
if (!value) {
DEBUG3("No DHCP RFC space attribute at %i", i);
continue;
}
DEBUG3("Adding %s value %i %s", da->name, i, value->name);
if (dict_addvalue(value->name, da->name, i) < 0) {
DEBUG3("Failed adding value: %s", fr_strerror());
}
}
}
return 0;
}
/*
* Don't even ask what this is doing...
*/
static void alvarion_vsa_hack(VALUE_PAIR *vp)
{
int number = 1;
vp_cursor_t cursor;
for (vp = fr_cursor_init(&cursor, &vp);
vp;
vp = fr_cursor_next(&cursor)) {
DICT_ATTR const *da;
if (vp->da->vendor != 12394) {
continue;
}
if (vp->da->type != PW_TYPE_STRING) {
continue;
}
da = dict_attrbyvalue(number, 12394);
if (!da) {
continue;
}
vp->da = da;
number++;
}
}
/*
* Create a new valuepair.
*/
VALUE_PAIR *paircreate(int attr, int type)
{
VALUE_PAIR *vp;
DICT_ATTR *da;
da = dict_attrbyvalue(attr);
if ((vp = pairalloc(da)) == NULL) {
fr_strerror_printf("out of memory");
return NULL;
}
vp->operator = T_OP_EQ;
/*
* It isn't in the dictionary: update the name.
*/
if (!da) {
char *p = (char *) (vp + 1);
vp->vendor = VENDOR(attr);
vp->attribute = attr;
vp->name = p;
vp->type = type; /* be forgiving */
if (!vp_print_name(p, FR_VP_NAME_LEN, vp->attribute)) {
free(vp);
return NULL;
}
}
return vp;
}
/*
* Do any per-module initialization that is separate to each
* configured instance of the module. e.g. set up connections
* to external databases, read configuration files, set up
* dictionary entries, etc.
*
* If configuration information is given in the config section
* that must be referenced in later calls, store a handle to it
* in *instance otherwise put a null pointer there.
*/
static int mod_instantiate(CONF_SECTION *conf, void *instance)
{
rlm_example_t *inst = instance;
ATTR_FLAGS flags;
memset(&flags, 0, sizeof(flags));
/*
* Do more work here
*/
if (!inst->boolean) {
cf_log_err_cs(conf, "Boolean is false: forcing error!");
return -1;
}
if (dict_addattr("Example-Paircmp", -1, 0, PW_TYPE_STRING, flags) < 0) {
ERROR("Failed creating paircmp attribute: %s", fr_strerror());
return -1;
}
paircompare_register(dict_attrbyname("Example-Paircmp"), dict_attrbyvalue(PW_USER_NAME, 0), false,
rlm_example_cmp, inst);
return 0;
}
/*
* Do any per-module initialization that is separate to each
* configured instance of the module. e.g. set up connections
* to external databases, read configuration files, set up
* dictionary entries, etc.
*
* If configuration information is given in the config section
* that must be referenced in later calls, store a handle to it
* in *instance otherwise put a null pointer there.
*/
static int mod_instantiate(CONF_SECTION *conf, void *instance)
{
rlm_logintime_t *inst = instance;
if (inst->min_time == 0) {
cf_log_err_cs(conf, "Invalid value '0' for minimum_timeout");
return -1;
}
/*
* Register a Current-Time comparison function
*/
paircompare_register(dict_attrbyvalue(PW_CURRENT_TIME, 0), NULL, true, timecmp, inst);
paircompare_register(dict_attrbyvalue(PW_TIME_OF_DAY, 0), NULL, true, time_of_day, inst);
return 0;
}
/*
* Do any per-module initialization that is separate to each
* configured instance of the module. e.g. set up connections
* to external databases, read configuration files, set up
* dictionary entries, etc.
*
* If configuration information is given in the config section
* that must be referenced in later calls, store a handle to it
* in *instance otherwise put a null pointer there.
*/
static int mod_instantiate(UNUSED CONF_SECTION *conf, void *instance)
{
/*
* Register the expiration comparison operation.
*/
paircompare_register(dict_attrbyvalue(PW_EXPIRATION, 0), NULL, false, expirecmp, instance);
return 0;
}
/** Create a new valuepair
*
* If attr and vendor match a dictionary entry then a VP with that DICT_ATTR
* will be returned.
*
* If attr or vendor are uknown will call dict_attruknown to create a dynamic
* DICT_ATTR of PW_TYPE_OCTETS.
*
* Which type of DICT_ATTR the VALUE_PAIR was created with can be determined by
* checking @verbatim vp->da->flags.is_unknown @endverbatim.
*
* @param[in] ctx for allocated memory, usually a pointer to a RADIUS_PACKET
* @param[in] attr number.
* @param[in] vendor number.
* @return the new valuepair or NULL on error.
*/
VALUE_PAIR *paircreate(TALLOC_CTX *ctx, unsigned int attr, unsigned int vendor)
{
DICT_ATTR const *da;
da = dict_attrbyvalue(attr, vendor);
if (!da) {
da = dict_unknown_afrom_fields(ctx, attr, vendor);
if (!da) {
return NULL;
}
}
return pairalloc(ctx, da);
}
/** Create a new valuepair
*
* If attr and vendor match a dictionary entry then a VP with that DICT_ATTR
* will be returned.
*
* If attr or vendor are uknown will call dict_attruknown to create a dynamic
* DICT_ATTR of PW_TYPE_OCTETS.
*
* Which type of DICT_ATTR the VALUE_PAIR was created with can be determined by
* checking @verbatim vp->da->flags.is_unknown @endverbatim.
*
* @param[in] ctx for allocated memory, usually a pointer to a RADIUS_PACKET
* @param[in] attr number.
* @param[in] vendor number.
* @return the new valuepair or NULL on error.
*/
VALUE_PAIR *paircreate(TALLOC_CTX *ctx, unsigned int attr, unsigned int vendor)
{
const DICT_ATTR *da;
da = dict_attrbyvalue(attr, vendor);
if (!da) {
da = dict_attrunknown(attr, vendor, true);
if (!da) {
return NULL;
}
}
return pairalloc(ctx, da);
}
/*
* Create a new valuepair.
*/
VALUE_PAIR *paircreate(int attr, int vendor, int type)
{
VALUE_PAIR *vp;
DICT_ATTR *da;
da = dict_attrbyvalue(attr, vendor);
if ((vp = pairalloc(da)) == NULL) {
return NULL;
}
/*
* It isn't in the dictionary: update the name.
*/
if (!da) return paircreate_raw(attr, vendor, type, vp);
return vp;
}
/*
* Create a new valuepair.
*/
VALUE_PAIR *paircreate(int attr, int type)
{
VALUE_PAIR *vp;
DICT_ATTR *da;
da = dict_attrbyvalue(attr);
if ((vp = pairalloc(da)) == NULL) {
fr_strerror_printf("out of memory");
return NULL;
}
vp->operator = T_OP_EQ;
/*
* It isn't in the dictionary: update the name.
*/
if (!da) return paircreate_raw(attr, type, vp);
return vp;
}
static int mod_instantiate(CONF_SECTION *conf, void *instance)
{
rlm_sql_t *inst = instance;
/*
* Hack...
*/
inst->config = &inst->myconfig;
inst->cs = conf;
inst->config->xlat_name = cf_section_name2(conf);
if (!inst->config->xlat_name) {
inst->config->xlat_name = cf_section_name1(conf);
} else {
char *group_name;
DICT_ATTR const *da;
ATTR_FLAGS flags;
/*
* Allocate room for <instance>-SQL-Group
*/
group_name = talloc_typed_asprintf(inst, "%s-SQL-Group", inst->config->xlat_name);
DEBUG("rlm_sql (%s): Creating new attribute %s",
inst->config->xlat_name, group_name);
memset(&flags, 0, sizeof(flags));
if (dict_addattr(group_name, -1, 0, PW_TYPE_STRING, flags) < 0) {
ERROR("rlm_sql (%s): Failed to create "
"attribute %s: %s", inst->config->xlat_name, group_name,
fr_strerror());
return -1;
}
da = dict_attrbyname(group_name);
if (!da) {
ERROR("rlm_sql (%s): Failed to create "
"attribute %s", inst->config->xlat_name, group_name);
return -1;
}
if (inst->config->groupmemb_query &&
inst->config->groupmemb_query[0]) {
DEBUG("rlm_sql (%s): Registering sql_groupcmp for %s",
inst->config->xlat_name, group_name);
paircompare_register(da, dict_attrbyvalue(PW_USER_NAME, 0),
false, sql_groupcmp, inst);
}
}
rad_assert(inst->config->xlat_name);
/*
* If the configuration parameters can't be parsed, then fail.
*/
if ((parse_sub_section(conf, inst, &inst->config->accounting, RLM_COMPONENT_ACCT) < 0) ||
(parse_sub_section(conf, inst, &inst->config->postauth, RLM_COMPONENT_POST_AUTH) < 0)) {
cf_log_err_cs(conf, "Invalid configuration");
return -1;
}
/*
* Cache the SQL-User-Name DICT_ATTR, so we can be slightly
* more efficient about creating SQL-User-Name attributes.
*/
inst->sql_user = dict_attrbyname("SQL-User-Name");
if (!inst->sql_user) {
return -1;
}
/*
* Export these methods, too. This avoids RTDL_GLOBAL.
*/
inst->sql_set_user = sql_set_user;
inst->sql_get_socket = sql_get_socket;
inst->sql_release_socket = sql_release_socket;
inst->sql_escape_func = sql_escape_func;
inst->sql_query = rlm_sql_query;
inst->sql_select_query = rlm_sql_select_query;
inst->sql_fetch_row = rlm_sql_fetch_row;
/*
* Register the SQL xlat function
*/
xlat_register(inst->config->xlat_name, sql_xlat, sql_escape_func, inst);
/*
* Sanity check for crazy people.
*/
if (strncmp(inst->config->sql_driver_name, "rlm_sql_", 8) != 0) {
ERROR("rlm_sql (%s): \"%s\" is NOT an SQL driver!",
inst->config->xlat_name, inst->config->sql_driver_name);
return -1;
}
/*
* Load the appropriate driver for our database
*/
inst->handle = lt_dlopenext(inst->config->sql_driver_name);
if (!inst->handle) {
ERROR("Could not link driver %s: %s",
inst->config->sql_driver_name,
dlerror());
ERROR("Make sure it (and all its dependent libraries!)"
"are in the search path of your system's ld");
return -1;
}
inst->module = (rlm_sql_module_t *) dlsym(inst->handle,
inst->config->sql_driver_name);
if (!inst->module) {
ERROR("Could not link symbol %s: %s",
inst->config->sql_driver_name,
dlerror());
return -1;
}
if (inst->module->mod_instantiate) {
CONF_SECTION *cs;
char const *name;
name = strrchr(inst->config->sql_driver_name, '_');
if (!name) {
name = inst->config->sql_driver_name;
} else {
name++;
}
cs = cf_section_sub_find(conf, name);
if (!cs) {
cs = cf_section_alloc(conf, name, NULL);
if (!cs) {
return -1;
}
}
/*
* It's up to the driver to register a destructor
*/
if (inst->module->mod_instantiate(cs, inst->config) < 0) {
return -1;
}
}
inst->lf = fr_logfile_init(inst);
if (!inst->lf) {
cf_log_err_cs(conf, "Failed creating log file context");
return -1;
}
INFO("rlm_sql (%s): Driver %s (module %s) loaded and linked",
inst->config->xlat_name, inst->config->sql_driver_name,
inst->module->name);
/*
* Initialise the connection pool for this instance
*/
INFO("rlm_sql (%s): Attempting to connect to database \"%s\"",
inst->config->xlat_name, inst->config->sql_db);
if (sql_socket_pool_init(inst) < 0) return -1;
if (inst->config->groupmemb_query &&
inst->config->groupmemb_query[0]) {
paircompare_register(dict_attrbyvalue(PW_SQL_GROUP, 0),
dict_attrbyvalue(PW_USER_NAME, 0), false, sql_groupcmp, inst);
}
if (inst->config->do_clients) {
if (generate_sql_clients(inst) == -1){
ERROR("Failed to load clients from SQL");
return -1;
}
}
return RLM_MODULE_OK;
}
/*
* Check password.
*
* Returns: 0 OK
* -1 Password fail
* -2 Rejected (Auth-Type = Reject, send Port-Message back)
* 1 End check & return, don't reply
*
* NOTE: NOT the same as the RLM_ values !
*/
static int rad_check_password(REQUEST *request)
{
VALUE_PAIR *auth_type_pair;
VALUE_PAIR *cur_config_item;
VALUE_PAIR *password_pair;
VALUE_PAIR *auth_item;
uint8_t my_chap[MAX_STRING_LEN];
int auth_type = -1;
int result;
int auth_type_count = 0;
result = 0;
/*
* Look for matching check items. We skip the whole lot
* if the authentication type is PW_AUTHTYPE_ACCEPT or
* PW_AUTHTYPE_REJECT.
*/
cur_config_item = request->config_items;
while(((auth_type_pair = pairfind(cur_config_item, PW_AUTH_TYPE))) != NULL) {
auth_type = auth_type_pair->vp_integer;
auth_type_count++;
RDEBUG2("Found Auth-Type = %s",
dict_valnamebyattr(PW_AUTH_TYPE,
auth_type_pair->vp_integer));
cur_config_item = auth_type_pair->next;
if (auth_type == PW_AUTHTYPE_REJECT) {
RDEBUG2("Auth-Type = Reject, rejecting user");
return -2;
}
}
if (( auth_type_count > 1) && (debug_flag)) {
radlog_request(L_ERR, 0, request, "Warning: Found %d auth-types on request for user '%s'",
auth_type_count, request->username->vp_strvalue);
}
/*
* This means we have a proxy reply or an accept
* and it wasn't rejected in the above loop. So
* that means it is accepted and we do no further
* authentication
*/
if ((auth_type == PW_AUTHTYPE_ACCEPT)
#ifdef WITH_PROXY
|| (request->proxy)
#endif
) {
RDEBUG2("Auth-Type = Accept, accepting the user");
return 0;
}
password_pair = pairfind(request->config_items, PW_USER_PASSWORD);
if (password_pair &&
pairfind(request->config_items, PW_CLEARTEXT_PASSWORD)) {
pairdelete(&request->config_items, PW_USER_PASSWORD);
password_pair = NULL;
}
if (password_pair) {
DICT_ATTR *da;
RDEBUG("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
RDEBUG("!!! Replacing User-Password in config items with Cleartext-Password. !!!");
RDEBUG("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
RDEBUG("!!! Please update your configuration so that the \"known good\" !!!");
RDEBUG("!!! clear text password is in Cleartext-Password, and not in User-Password. !!!");
RDEBUG("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
password_pair->attribute = PW_CLEARTEXT_PASSWORD;
da = dict_attrbyvalue(PW_CLEARTEXT_PASSWORD);
if (!da) {
radlog_request(L_ERR, 0, request, "FATAL: You broke the dictionaries. Please use the default dictionaries!");
_exit(1);
}
password_pair->name = da->name;
}
/*
* Find the "known good" password.
*
* FIXME: We should get rid of these hacks, and replace
* them with a module.
*/
if ((password_pair = pairfind(request->config_items, PW_CRYPT_PASSWORD)) != NULL) {
/*
* Re-write Auth-Type, but ONLY if it isn't already
* set.
*/
if (auth_type == -1) auth_type = PW_AUTHTYPE_CRYPT;
} else {
password_pair = pairfind(request->config_items, PW_CLEARTEXT_PASSWORD);
}
if (auth_type < 0) {
if (password_pair) {
auth_type = PW_AUTHTYPE_LOCAL;
} else {
/*
* The admin hasn't told us how to
* authenticate the user, so we reject them!
*
* This is fail-safe.
*/
RDEBUG2("ERROR: No authenticate method (Auth-Type) found for the request: Rejecting the user");
return -2;
}
}
switch(auth_type) {
case PW_AUTHTYPE_CRYPT:
RDEBUG2("WARNING: Please update your configuration, and remove 'Auth-Type = Crypt'");
RDEBUG2("WARNING: Use the PAP module instead.");
/*
* Find the password sent by the user. It
* SHOULD be there, if it's not
* authentication fails.
*/
auth_item = request->password;
if (auth_item == NULL) {
RDEBUG2("No User-Password or CHAP-Password attribute in the request");
return -1;
}
if (password_pair == NULL) {
RDEBUG2("No Crypt-Password configured for the user");
rad_authlog("Login incorrect "
"(No Crypt-Password configured for the user)", request, 0);
return -1;
}
switch (fr_crypt_check((char *)auth_item->vp_strvalue,
(char *)password_pair->vp_strvalue)) {
case -1:
rad_authlog("Login incorrect "
"(system failed to supply an encrypted password for comparison)", request, 0);
/* FALL-THROUGH */
case 1:
return -1;
}
break;
case PW_AUTHTYPE_LOCAL:
RDEBUG2("WARNING: Please update your configuration, and remove 'Auth-Type = Local'");
RDEBUG2("WARNING: Use the PAP or CHAP modules instead.");
/*
* Find the password sent by the user. It
* SHOULD be there, if it's not
* authentication fails.
*/
auth_item = request->password;
if (!auth_item)
auth_item = pairfind(request->packet->vps,
PW_CHAP_PASSWORD);
if (!auth_item) {
RDEBUG2("No User-Password or CHAP-Password attribute in the request.");
RDEBUG2("Cannot perform authentication.");
return -1;
}
/*
* Plain text password.
*/
if (password_pair == NULL) {
RDEBUG2("No \"known good\" password was configured for the user.");
RDEBUG2("As a result, we cannot authenticate the user.");
rad_authlog("Login incorrect "
"(No password configured for the user)", request, 0);
return -1;
}
/*
* Local password is just plain text.
*/
if (auth_item->attribute == PW_USER_PASSWORD) {
if (strcmp((char *)password_pair->vp_strvalue,
(char *)auth_item->vp_strvalue) != 0) {
RDEBUG2("User-Password in the request does NOT match \"known good\" password.");
return -1;
}
RDEBUG2("User-Password in the request is correct.");
break;
} else if (auth_item->attribute != PW_CHAP_PASSWORD) {
RDEBUG2("The user did not supply a User-Password or a CHAP-Password attribute");
rad_authlog("Login incorrect "
"(no User-Password or CHAP-Password attribute)", request, 0);
return -1;
}
rad_chap_encode(request->packet, my_chap,
auth_item->vp_octets[0], password_pair);
/*
* Compare them
*/
if (memcmp(my_chap + 1, auth_item->vp_strvalue + 1,
CHAP_VALUE_LENGTH) != 0) {
RDEBUG2("CHAP-Password is incorrect.");
return -1;
}
RDEBUG2("CHAP-Password is correct.");
break;
default:
/*
* See if there is a module that handles
* this type, and turn the RLM_ return
* status into the values as defined at
* the top of this function.
*/
result = module_authenticate(auth_type, request);
switch (result) {
/*
* An authentication module FAIL
* return code, or any return code that
* is not expected from authentication,
* is the same as an explicit REJECT!
*/
case RLM_MODULE_FAIL:
case RLM_MODULE_INVALID:
case RLM_MODULE_NOOP:
case RLM_MODULE_NOTFOUND:
case RLM_MODULE_REJECT:
case RLM_MODULE_UPDATED:
case RLM_MODULE_USERLOCK:
default:
result = -1;
break;
case RLM_MODULE_OK:
result = 0;
break;
case RLM_MODULE_HANDLED:
result = 1;
break;
}
break;
}
return result;
}
/** Unpack data
*
* Example: %{unpack:&Class 0 integer}
*
* Expands Class, treating octet at offset 0 (bytes 0-3) as an "integer".
*/
static ssize_t unpack_xlat(UNUSED void *instance, REQUEST *request, char const *fmt,
char *out, size_t outlen)
{
char *data_name, *data_size, *data_type;
char *p;
size_t len, input_len;
int offset;
PW_TYPE type;
DICT_ATTR const *da;
VALUE_PAIR *vp, *cast;
uint8_t const *input;
char buffer[256];
uint8_t blob[256];
/*
* FIXME: copy only the fields here, as we parse them.
*/
strlcpy(buffer, fmt, sizeof(buffer));
p = buffer;
while (isspace((int) *p)) p++; /* skip leading spaces */
data_name = p;
while (*p && !isspace((int) *p)) p++;
if (!*p) {
error:
REDEBUG("Format string should be '<data> <offset> <type>' e.g. '&Class 1 integer'");
nothing:
*out = '\0';
return -1;
}
while (isspace((int) *p)) *(p++) = '\0';
if (!*p) GOTO_ERROR;
data_size = p;
while (*p && !isspace((int) *p)) p++;
if (!*p) GOTO_ERROR;
while (isspace((int) *p)) *(p++) = '\0';
if (!*p) GOTO_ERROR;
data_type = p;
while (*p && !isspace((int) *p)) p++;
if (*p) GOTO_ERROR; /* anything after the type is an error */
/*
* Attribute reference
*/
if (*data_name == '&') {
if (radius_get_vp(&vp, request, data_name) < 0) goto nothing;
if ((vp->da->type != PW_TYPE_OCTETS) &&
(vp->da->type != PW_TYPE_STRING)) {
REDEBUG("unpack requires the input attribute to be 'string' or 'octets'");
goto nothing;
}
input = vp->vp_octets;
input_len = vp->vp_length;
} else if ((data_name[0] == '0') && (data_name[1] == 'x')) {
/*
* Hex data.
*/
len = strlen(data_name + 2);
if ((len & 0x01) != 0) {
RDEBUG("Invalid hex string in '%s'", data_name);
goto nothing;
}
input = blob;
input_len = fr_hex2bin(blob, sizeof(blob), data_name + 2, len);
} else {
GOTO_ERROR;
}
offset = (int) strtoul(data_size, &p, 10);
if (*p) {
REDEBUG("unpack requires a decimal number, not '%s'", data_size);
goto nothing;
}
type = fr_str2int(dict_attr_types, data_type, PW_TYPE_INVALID);
if (type == PW_TYPE_INVALID) {
REDEBUG("Invalid data type '%s'", data_type);
goto nothing;
}
/*
* Output must be a non-zero limited size.
*/
if ((dict_attr_sizes[type][0] == 0) ||
(dict_attr_sizes[type][0] != dict_attr_sizes[type][1])) {
REDEBUG("unpack requires fixed-size output type, not '%s'", data_type);
goto nothing;
}
if (input_len < (offset + dict_attr_sizes[type][0])) {
REDEBUG("Insufficient data to unpack '%s' from '%s'", data_type, data_name);
goto nothing;
}
da = dict_attrbyvalue(PW_CAST_BASE + type, 0);
if (!da) {
REDEBUG("Cannot decode type '%s'", data_type);
goto nothing;
}
cast = pairalloc(request, da);
if (!cast) goto nothing;
memcpy(&(cast->data), input + offset, dict_attr_sizes[type][0]);
cast->vp_length = dict_attr_sizes[type][0];
/*
* Hacks
*/
switch (type) {
case PW_TYPE_SIGNED:
case PW_TYPE_INTEGER:
case PW_TYPE_DATE:
cast->vp_integer = ntohl(cast->vp_integer);
break;
case PW_TYPE_SHORT:
cast->vp_short = ((input[offset] << 8) | input[offset + 1]);
break;
case PW_TYPE_INTEGER64:
cast->vp_integer64 = ntohll(cast->vp_integer64);
break;
default:
break;
}
len = vp_prints_value(out, outlen, cast, 0);
talloc_free(cast);
if (is_truncated(len, outlen)) {
REDEBUG("Insufficient buffer space to unpack data");
goto nothing;
}
return len;
}
static int sendrecv_eap(RADIUS_PACKET *rep)
{
RADIUS_PACKET *req = NULL;
VALUE_PAIR *vp, *vpnext;
int tried_eap_md5 = 0;
if (!rep) return -1;
/*
* Keep a copy of the the User-Password attribute.
*/
if ((vp = pairfind(rep->vps, PW_CLEARTEXT_PASSWORD, 0, TAG_ANY)) != NULL) {
strlcpy(password, vp->vp_strvalue, sizeof(password));
} else if ((vp = pairfind(rep->vps, PW_USER_PASSWORD, 0, TAG_ANY)) != NULL) {
strlcpy(password, vp->vp_strvalue, sizeof(password));
/*
* Otherwise keep a copy of the CHAP-Password attribute.
*/
} else if ((vp = pairfind(rep->vps, PW_CHAP_PASSWORD, 0, TAG_ANY)) != NULL) {
strlcpy(password, vp->vp_strvalue, sizeof(password));
} else {
*password = '******';
}
again:
rep->id++;
/*
* if there are EAP types, encode them into an EAP-Message
*
*/
map_eap_methods(rep);
/*
* Fix up Digest-Attributes issues
*/
for (vp = rep->vps; vp != NULL; vp = vp->next) {
switch (vp->da->attr) {
default:
break;
case PW_DIGEST_REALM:
case PW_DIGEST_NONCE:
case PW_DIGEST_METHOD:
case PW_DIGEST_URI:
case PW_DIGEST_QOP:
case PW_DIGEST_ALGORITHM:
case PW_DIGEST_BODY_DIGEST:
case PW_DIGEST_CNONCE:
case PW_DIGEST_NONCE_COUNT:
case PW_DIGEST_USER_NAME:
/* overlapping! */
{
DICT_ATTR const *da;
uint8_t *p, *q;
p = talloc_array(vp, uint8_t, vp->length + 2);
memcpy(p + 2, vp->vp_octets, vp->length);
p[0] = vp->da->attr - PW_DIGEST_REALM + 1;
vp->length += 2;
p[1] = vp->length;
da = dict_attrbyvalue(PW_DIGEST_ATTRIBUTES, 0);
vp->da = da;
/*
* Re-do pairmemsteal ourselves,
* because we play games with
* vp->da, and pairmemsteal goes
* to GREAT lengths to sanitize
* and fix and change and
* double-check the various
* fields.
*/
memcpy(&q, &vp->vp_octets, sizeof(q));
talloc_free(q);
vp->vp_octets = talloc_steal(vp, p);
vp->type = VT_DATA;
VERIFY_VP(vp);
}
break;
}
}
/*
* If we've already sent a packet, free up the old
* one, and ensure that the next packet has a unique
* ID and authentication vector.
*/
if (rep->data) {
talloc_free(rep->data);
rep->data = NULL;
}
fr_md5_calc(rep->vector, rep->vector,
sizeof(rep->vector));
if (*password != '\0') {
if ((vp = pairfind(rep->vps, PW_CLEARTEXT_PASSWORD, 0, TAG_ANY)) != NULL) {
pairstrcpy(vp, password);
} else if ((vp = pairfind(rep->vps, PW_USER_PASSWORD, 0, TAG_ANY)) != NULL) {
pairstrcpy(vp, password);
} else if ((vp = pairfind(rep->vps, PW_CHAP_PASSWORD, 0, TAG_ANY)) != NULL) {
pairstrcpy(vp, password);
uint8_t *p;
p = talloc_zero_array(vp, uint8_t, 17);
rad_chap_encode(rep, p, rep->id, vp);
pairmemsteal(vp, p);
}
} /* there WAS a password */
/* send the response, wait for the next request */
send_packet(rep, &req);
if (!req) return -1;
/* okay got back the packet, go and decode the EAP-Message. */
unmap_eap_methods(req);
debug_packet(req, R_RECV);
/* now look for the code type. */
for (vp = req->vps; vp != NULL; vp = vpnext) {
vpnext = vp->next;
switch (vp->da->attr) {
default:
break;
case ATTRIBUTE_EAP_BASE+PW_EAP_MD5:
if(respond_eap_md5(req, rep) && tried_eap_md5 < 3)
{
tried_eap_md5++;
goto again;
}
break;
case ATTRIBUTE_EAP_BASE+PW_EAP_SIM:
if(respond_eap_sim(req, rep))
{
goto again;
}
break;
}
}
return 1;
}
/*
* Initialize a radclient data structure and add it to
* the global linked list.
*/
static int radclient_init(char const *filename)
{
FILE *fp;
VALUE_PAIR *vp;
radclient_t *radclient;
int filedone = 0;
int packet_number = 1;
assert(filename != NULL);
/*
* Determine where to read the VP's from.
*/
if (strcmp(filename, "-") != 0) {
fp = fopen(filename, "r");
if (!fp) {
fprintf(stderr, "radclient: Error opening %s: %s\n",
filename, strerror(errno));
return 0;
}
} else {
fp = stdin;
}
/*
* Loop until the file is done.
*/
do {
/*
* Allocate it.
*/
radclient = malloc(sizeof(*radclient));
if (!radclient) {
goto oom;
}
memset(radclient, 0, sizeof(*radclient));
radclient->request = rad_alloc(NULL, 1);
if (!radclient->request) {
goto oom;
}
#ifdef WITH_TCP
radclient->request->src_ipaddr = client_ipaddr;
radclient->request->src_port = client_port;
radclient->request->dst_ipaddr = server_ipaddr;
radclient->request->dst_port = server_port;
#endif
radclient->filename = filename;
radclient->request->id = -1; /* allocate when sending */
radclient->packet_number = packet_number++;
/*
* Read the VP's.
*/
radclient->request->vps = readvp2(NULL, fp, &filedone, "radclient:");
if (!radclient->request->vps) {
rad_free(&radclient->request);
free(radclient);
if (fp != stdin) fclose(fp);
return 1;
}
/*
* Keep a copy of the the User-Password attribute.
*/
if ((vp = pairfind(radclient->request->vps, PW_USER_PASSWORD, 0, TAG_ANY)) != NULL) {
strlcpy(radclient->password, vp->vp_strvalue,
sizeof(radclient->password));
/*
* Otherwise keep a copy of the CHAP-Password attribute.
*/
} else if ((vp = pairfind(radclient->request->vps, PW_CHAP_PASSWORD, 0, TAG_ANY)) != NULL) {
strlcpy(radclient->password, vp->vp_strvalue,
sizeof(radclient->password));
} else if ((vp = pairfind(radclient->request->vps, PW_MSCHAP_PASSWORD, 0, TAG_ANY)) != NULL) {
strlcpy(radclient->password, vp->vp_strvalue,
sizeof(radclient->password));
} else {
radclient->password[0] = '\0';
}
/*
* Fix up Digest-Attributes issues
*/
for (vp = radclient->request->vps; vp != NULL; vp = vp->next) {
if (!vp->da->vendor) switch (vp->da->attr) {
default:
break;
/*
* Allow it to set the packet type in
* the attributes read from the file.
*/
case PW_PACKET_TYPE:
radclient->request->code = vp->vp_integer;
break;
case PW_PACKET_DST_PORT:
radclient->request->dst_port = (vp->vp_integer & 0xffff);
break;
case PW_PACKET_DST_IP_ADDRESS:
radclient->request->dst_ipaddr.af = AF_INET;
radclient->request->dst_ipaddr.ipaddr.ip4addr.s_addr = vp->vp_ipaddr;
break;
case PW_PACKET_DST_IPV6_ADDRESS:
radclient->request->dst_ipaddr.af = AF_INET6;
radclient->request->dst_ipaddr.ipaddr.ip6addr = vp->vp_ipv6addr;
break;
case PW_PACKET_SRC_PORT:
radclient->request->src_port = (vp->vp_integer & 0xffff);
break;
case PW_PACKET_SRC_IP_ADDRESS:
radclient->request->src_ipaddr.af = AF_INET;
radclient->request->src_ipaddr.ipaddr.ip4addr.s_addr = vp->vp_ipaddr;
break;
case PW_PACKET_SRC_IPV6_ADDRESS:
radclient->request->src_ipaddr.af = AF_INET6;
radclient->request->src_ipaddr.ipaddr.ip6addr = vp->vp_ipv6addr;
break;
case PW_DIGEST_REALM:
case PW_DIGEST_NONCE:
case PW_DIGEST_METHOD:
case PW_DIGEST_URI:
case PW_DIGEST_QOP:
case PW_DIGEST_ALGORITHM:
case PW_DIGEST_BODY_DIGEST:
case PW_DIGEST_CNONCE:
case PW_DIGEST_NONCE_COUNT:
case PW_DIGEST_USER_NAME:
/* overlapping! */
{
const DICT_ATTR *da;
uint8_t *p;
p = talloc_array(vp, uint8_t, vp->length + 2);
memcpy(p + 2, vp->vp_octets, vp->length);
p[0] = vp->da->attr - PW_DIGEST_REALM + 1;
vp->length += 2;
p[1] = vp->length;
// talloc_free(vp->vp_octets);
vp->vp_octets = p;
da = dict_attrbyvalue(PW_DIGEST_ATTRIBUTES, 0);
if (!da) {
goto oom;
}
vp->da = da;
}
break;
}
} /* loop over the VP's we read in */
/*
* Add it to the tail of the list.
*/
if (!radclient_head) {
assert(radclient_tail == NULL);
radclient_head = radclient;
radclient->prev = NULL;
} else {
assert(radclient_tail->next == NULL);
radclient_tail->next = radclient;
radclient->prev = radclient_tail;
}
radclient_tail = radclient;
radclient->next = NULL;
} while (!filedone); /* loop until the file is done. */
if (fp != stdin) fclose(fp);
/*
* And we're done.
*/
return 1;
oom:
fprintf(stderr, "radclient: Out of memory\n");
free(radclient);
if (fp != stdin) fclose(fp);
return 0;
}
static int mod_detach(UNUSED void *instance)
{
paircompare_unregister(dict_attrbyvalue(PW_CURRENT_TIME, 0), timecmp);
paircompare_unregister(dict_attrbyvalue(PW_TIME_OF_DAY, 0), time_of_day);
return 0;
}
/*
* Initialize a radclient data structure and add it to
* the global linked list.
*/
static int radclient_init(TALLOC_CTX *ctx, char const *filename)
{
FILE *fp;
vp_cursor_t cursor;
VALUE_PAIR *vp;
rc_request_t *request;
int filedone = 0;
int request_number = 1;
assert(filename != NULL);
/*
* Determine where to read the VP's from.
*/
if (strcmp(filename, "-") != 0) {
fp = fopen(filename, "r");
if (!fp) {
fprintf(stderr, "radclient: Error opening %s: %s\n",
filename, strerror(errno));
return 0;
}
} else {
fp = stdin;
}
/*
* Loop until the file is done.
*/
do {
/*
* Allocate it.
*/
request = talloc_zero(ctx, rc_request_t);
if (!request) {
goto oom;
}
talloc_set_destructor(request, _rc_request_free);
request->packet = rad_alloc(request, 1);
if (!request->packet) {
goto oom;
}
#ifdef WITH_TCP
request->packet->src_ipaddr = client_ipaddr;
request->packet->src_port = client_port;
request->packet->dst_ipaddr = server_ipaddr;
request->packet->dst_port = server_port;
#endif
request->filename = filename;
request->packet->id = -1; /* allocate when sending */
request->request_number = request_number++;
/*
* Read the VP's.
*/
request->packet->vps = readvp2(request, fp, &filedone, "radclient:");
if (!request->packet->vps) {
talloc_free(request);
if (fp != stdin) {
fclose(fp);
}
return 1;
}
/*
* Keep a copy of the the User-Password attribute.
*/
if ((vp = pairfind(request->packet->vps, PW_USER_PASSWORD, 0, TAG_ANY)) != NULL) {
strlcpy(request->password, vp->vp_strvalue,
sizeof(request->password));
/*
* Otherwise keep a copy of the CHAP-Password attribute.
*/
} else if ((vp = pairfind(request->packet->vps, PW_CHAP_PASSWORD, 0, TAG_ANY)) != NULL) {
strlcpy(request->password, vp->vp_strvalue,
sizeof(request->password));
} else if ((vp = pairfind(request->packet->vps, PW_MSCHAP_PASSWORD, 0, TAG_ANY)) != NULL) {
strlcpy(request->password, vp->vp_strvalue,
sizeof(request->password));
} else {
request->password[0] = '\0';
}
/*
* Fix up Digest-Attributes issues
*/
for (vp = fr_cursor_init(&cursor, &request->packet->vps);
vp;
vp = fr_cursor_next(&cursor)) {
/*
* Double quoted strings get marked up as xlat expansions,
* but we don't support that in request.
*/
if (vp->type == VT_XLAT) {
vp->vp_strvalue = vp->value.xlat;
vp->value.xlat = NULL;
vp->type = VT_DATA;
}
if (!vp->da->vendor) switch (vp->da->attr) {
default:
break;
/*
* Allow it to set the packet type in
* the attributes read from the file.
*/
case PW_PACKET_TYPE:
request->packet->code = vp->vp_integer;
break;
case PW_PACKET_DST_PORT:
request->packet->dst_port = (vp->vp_integer & 0xffff);
break;
case PW_PACKET_DST_IP_ADDRESS:
request->packet->dst_ipaddr.af = AF_INET;
request->packet->dst_ipaddr.ipaddr.ip4addr.s_addr = vp->vp_ipaddr;
break;
case PW_PACKET_DST_IPV6_ADDRESS:
request->packet->dst_ipaddr.af = AF_INET6;
request->packet->dst_ipaddr.ipaddr.ip6addr = vp->vp_ipv6addr;
break;
case PW_PACKET_SRC_PORT:
request->packet->src_port = (vp->vp_integer & 0xffff);
break;
case PW_PACKET_SRC_IP_ADDRESS:
request->packet->src_ipaddr.af = AF_INET;
request->packet->src_ipaddr.ipaddr.ip4addr.s_addr = vp->vp_ipaddr;
break;
case PW_PACKET_SRC_IPV6_ADDRESS:
request->packet->src_ipaddr.af = AF_INET6;
request->packet->src_ipaddr.ipaddr.ip6addr = vp->vp_ipv6addr;
break;
case PW_DIGEST_REALM:
case PW_DIGEST_NONCE:
case PW_DIGEST_METHOD:
case PW_DIGEST_URI:
case PW_DIGEST_QOP:
case PW_DIGEST_ALGORITHM:
case PW_DIGEST_BODY_DIGEST:
case PW_DIGEST_CNONCE:
case PW_DIGEST_NONCE_COUNT:
case PW_DIGEST_USER_NAME:
/* overlapping! */
{
DICT_ATTR const *da;
uint8_t *p;
p = talloc_array(vp, uint8_t, vp->length + 2);
memcpy(p + 2, vp->vp_octets, vp->length);
p[0] = vp->da->attr - PW_DIGEST_REALM + 1;
vp->length += 2;
p[1] = vp->length;
pairmemsteal(vp, p);
da = dict_attrbyvalue(PW_DIGEST_ATTRIBUTES, 0);
if (!da) {
goto oom;
}
vp->da = da;
}
break;
}
} /* loop over the VP's we read in */
/*
* Add it to the tail of the list.
*/
if (!request_head) {
assert(rc_request_tail == NULL);
request_head = request;
request->prev = NULL;
} else {
assert(rc_request_tail->next == NULL);
rc_request_tail->next = request;
request->prev = rc_request_tail;
}
rc_request_tail = request;
request->next = NULL;
} while (!filedone); /* loop until the file is done. */
if (fp != stdin) fclose(fp);
/*
* And we're done.
*/
return 1;
oom:
fprintf(stderr, "radclient: Out of memory\n");
talloc_free(request);
if (fp != stdin) fclose(fp);
return 0;
}
/*
* Initialize a radclient data structure and add it to
* the global linked list.
*/
static int radclient_init(TALLOC_CTX *ctx, rc_file_pair_t *files)
{
FILE *packets, *filters = NULL;
vp_cursor_t cursor;
VALUE_PAIR *vp;
rc_request_t *request;
bool packets_done = false;
uint64_t num = 0;
assert(files->packets != NULL);
/*
* Determine where to read the VP's from.
*/
if (strcmp(files->packets, "-") != 0) {
packets = fopen(files->packets, "r");
if (!packets) {
ERROR("Error opening %s: %s", files->packets, strerror(errno));
return 0;
}
/*
* Read in the pairs representing the expected response.
*/
if (files->filters) {
filters = fopen(files->filters, "r");
if (!filters) {
ERROR("Error opening %s: %s", files->filters, strerror(errno));
fclose(packets);
return 0;
}
}
} else {
packets = stdin;
}
/*
* Loop until the file is done.
*/
do {
/*
* Allocate it.
*/
request = talloc_zero(ctx, rc_request_t);
if (!request) {
ERROR("Out of memory");
goto error;
}
talloc_set_destructor(request, _rc_request_free);
request->packet = rad_alloc(request, 1);
if (!request->packet) {
ERROR("Out of memory");
goto error;
}
#ifdef WITH_TCP
request->packet->src_ipaddr = client_ipaddr;
request->packet->src_port = client_port;
request->packet->dst_ipaddr = server_ipaddr;
request->packet->dst_port = server_port;
request->packet->proto = ipproto;
#endif
request->files = files;
request->packet->id = -1; /* allocate when sending */
request->num = num++;
/*
* Read the request VP's.
*/
if (readvp2(&request->packet->vps, request->packet, packets, &packets_done) < 0) {
ERROR("Error parsing \"%s\"", files->packets);
goto error;
}
fr_cursor_init(&cursor, &request->filter);
vp = fr_cursor_next_by_num(&cursor, PW_PACKET_TYPE, 0, TAG_ANY);
if (vp) {
fr_cursor_remove(&cursor);
request->packet_code = vp->vp_integer;
talloc_free(vp);
} else {
request->packet_code = packet_code; /* Use the default set on the command line */
}
/*
* Read in filter VP's.
*/
if (filters) {
bool filters_done;
if (readvp2(&request->filter, request, filters, &filters_done) < 0) {
ERROR("Error parsing \"%s\"", files->filters);
goto error;
}
if (!request->filter) {
goto error;
}
if (filters_done && !packets_done) {
ERROR("Differing number of packets/filters in %s:%s "
"(too many requests))", files->packets, files->filters);
goto error;
}
if (!filters_done && packets_done) {
ERROR("Differing number of packets/filters in %s:%s "
"(too many filters))", files->packets, files->filters);
goto error;
}
fr_cursor_init(&cursor, &request->filter);
vp = fr_cursor_next_by_num(&cursor, PW_PACKET_TYPE, 0, TAG_ANY);
if (vp) {
fr_cursor_remove(&cursor);
request->filter_code = vp->vp_integer;
talloc_free(vp);
}
/*
* xlat expansions aren't supported here
*/
for (vp = fr_cursor_init(&cursor, &request->filter);
vp;
vp = fr_cursor_next(&cursor)) {
if (vp->type == VT_XLAT) {
vp->type = VT_DATA;
vp->vp_strvalue = vp->value.xlat;
}
}
/*
* This allows efficient list comparisons later
*/
pairsort(&request->filter, attrtagcmp);
}
/*
* Determine the response code from the request (if not already set)
*/
if (!request->filter_code) {
switch (request->packet_code) {
case PW_CODE_AUTHENTICATION_REQUEST:
request->filter_code = PW_CODE_AUTHENTICATION_ACK;
break;
case PW_CODE_ACCOUNTING_REQUEST:
request->filter_code = PW_CODE_ACCOUNTING_RESPONSE;
break;
case PW_CODE_COA_REQUEST:
request->filter_code = PW_CODE_COA_ACK;
break;
case PW_CODE_DISCONNECT_REQUEST:
request->filter_code = PW_CODE_DISCONNECT_ACK;
break;
default:
break;
}
}
/*
* Keep a copy of the the User-Password attribute.
*/
if ((vp = pairfind(request->packet->vps, PW_USER_PASSWORD, 0, TAG_ANY)) != NULL) {
strlcpy(request->password, vp->vp_strvalue,
sizeof(request->password));
/*
* Otherwise keep a copy of the CHAP-Password attribute.
*/
} else if ((vp = pairfind(request->packet->vps, PW_CHAP_PASSWORD, 0, TAG_ANY)) != NULL) {
strlcpy(request->password, vp->vp_strvalue,
sizeof(request->password));
} else if ((vp = pairfind(request->packet->vps, PW_MSCHAP_PASSWORD, 0, TAG_ANY)) != NULL) {
strlcpy(request->password, vp->vp_strvalue,
sizeof(request->password));
} else {
request->password[0] = '\0';
}
/*
* Fix up Digest-Attributes issues
*/
for (vp = fr_cursor_init(&cursor, &request->packet->vps);
vp;
vp = fr_cursor_next(&cursor)) {
/*
* Double quoted strings get marked up as xlat expansions,
* but we don't support that in request.
*/
if (vp->type == VT_XLAT) {
vp->vp_strvalue = vp->value.xlat;
vp->value.xlat = NULL;
vp->type = VT_DATA;
}
if (!vp->da->vendor) switch (vp->da->attr) {
default:
break;
/*
* Allow it to set the packet type in
* the attributes read from the file.
*/
case PW_PACKET_TYPE:
request->packet->code = vp->vp_integer;
break;
case PW_PACKET_DST_PORT:
request->packet->dst_port = (vp->vp_integer & 0xffff);
break;
case PW_PACKET_DST_IP_ADDRESS:
request->packet->dst_ipaddr.af = AF_INET;
request->packet->dst_ipaddr.ipaddr.ip4addr.s_addr = vp->vp_ipaddr;
break;
case PW_PACKET_DST_IPV6_ADDRESS:
request->packet->dst_ipaddr.af = AF_INET6;
request->packet->dst_ipaddr.ipaddr.ip6addr = vp->vp_ipv6addr;
break;
case PW_PACKET_SRC_PORT:
request->packet->src_port = (vp->vp_integer & 0xffff);
break;
case PW_PACKET_SRC_IP_ADDRESS:
request->packet->src_ipaddr.af = AF_INET;
request->packet->src_ipaddr.ipaddr.ip4addr.s_addr = vp->vp_ipaddr;
break;
case PW_PACKET_SRC_IPV6_ADDRESS:
request->packet->src_ipaddr.af = AF_INET6;
request->packet->src_ipaddr.ipaddr.ip6addr = vp->vp_ipv6addr;
break;
case PW_DIGEST_REALM:
case PW_DIGEST_NONCE:
case PW_DIGEST_METHOD:
case PW_DIGEST_URI:
case PW_DIGEST_QOP:
case PW_DIGEST_ALGORITHM:
case PW_DIGEST_BODY_DIGEST:
case PW_DIGEST_CNONCE:
case PW_DIGEST_NONCE_COUNT:
case PW_DIGEST_USER_NAME:
/* overlapping! */
{
DICT_ATTR const *da;
uint8_t *p, *q;
p = talloc_array(vp, uint8_t, vp->length + 2);
memcpy(p + 2, vp->vp_octets, vp->length);
p[0] = vp->da->attr - PW_DIGEST_REALM + 1;
vp->length += 2;
p[1] = vp->length;
da = dict_attrbyvalue(PW_DIGEST_ATTRIBUTES, 0);
if (!da) {
ERROR("Out of memory");
goto error;
}
vp->da = da;
/*
* Re-do pairmemsteal ourselves,
* because we play games with
* vp->da, and pairmemsteal goes
* to GREAT lengths to sanitize
* and fix and change and
* double-check the various
* fields.
*/
memcpy(&q, &vp->vp_octets, sizeof(q));
talloc_free(q);
vp->vp_octets = talloc_steal(vp, p);
vp->type = VT_DATA;
VERIFY_VP(vp);
}
break;
}
} /* loop over the VP's we read in */
/*
* Automatically set the port if we don't have a global
* or packet specific one.
*/
if ((server_port == 0) && (request->packet->dst_port == 0)) {
radclient_get_port(request->packet->code, &request->packet->dst_port);
}
/*
* Add it to the tail of the list.
*/
if (!request_head) {
assert(rc_request_tail == NULL);
request_head = request;
request->prev = NULL;
} else {
assert(rc_request_tail->next == NULL);
rc_request_tail->next = request;
request->prev = rc_request_tail;
}
rc_request_tail = request;
request->next = NULL;
} while (!packets_done); /* loop until the file is done. */
if (packets != stdin) fclose(packets);
if (filters) fclose(filters);
/*
* And we're done.
*/
return 1;
error:
talloc_free(request);
if (packets != stdin) fclose(packets);
if (filters) fclose(filters);
return 0;
}
/** Instantiate the module
*
* Creates a new instance of the module reading parameters from a configuration section.
*
* @param conf to parse.
* @param instance Where to write pointer to configuration data.
* @return 0 on success < 0 on failure.
*/
static int mod_instantiate(CONF_SECTION *conf, void *instance)
{
CONF_SECTION *options;
ldap_instance_t *inst = instance;
inst->cs = conf;
options = cf_section_sub_find(conf, "options");
if (!options || !cf_pair_find(options, "chase_referrals")) {
inst->chase_referrals_unset = true; /* use OpenLDAP defaults */
}
inst->xlat_name = cf_section_name2(conf);
if (!inst->xlat_name) {
inst->xlat_name = cf_section_name1(conf);
}
/*
* If the configuration parameters can't be parsed, then fail.
*/
if ((parse_sub_section(inst, conf, &inst->accounting, RLM_COMPONENT_ACCT) < 0) ||
(parse_sub_section(inst, conf, &inst->postauth, RLM_COMPONENT_POST_AUTH) < 0)) {
LDAP_ERR("Failed parsing configuration");
goto error;
}
/*
* Sanity checks for cacheable groups code.
*/
if (inst->cacheable_group_name && inst->groupobj_membership_filter) {
if (!inst->groupobj_name_attr) {
LDAP_ERR("Directive 'group.name_attribute' must be set if cacheable group names are enabled");
goto error;
}
}
/*
* Check for URLs. If they're used and the library doesn't support them, then complain.
*/
inst->is_url = 0;
if (ldap_is_ldap_url(inst->server)) {
#ifdef HAVE_LDAP_INITIALIZE
inst->is_url = 1;
inst->port = 0;
#else
LDAP_ERR("Directive 'server' is in URL form but ldap_initialize() is not available");
goto error;
#endif
}
/*
* Workaround for servers which support LDAPS but not START TLS
*/
if (inst->port == LDAPS_PORT || inst->tls_mode) {
inst->tls_mode = LDAP_OPT_X_TLS_HARD;
} else {
inst->tls_mode = 0;
}
#if LDAP_SET_REBIND_PROC_ARGS != 3
/*
* The 2-argument rebind doesn't take an instance variable. Our rebind function needs the instance
* variable for the username, password, etc.
*/
if (inst->rebind == true) {
LDAP_ERR("Cannot use 'rebind' directive as this version of libldap does not support the API "
"that we need");
goto error;
}
#endif
/*
* Convert scope strings to enumerated constants
*/
inst->userobj_scope = fr_str2int(ldap_scope, inst->userobj_scope_str, -1);
if (inst->userobj_scope < 0) {
LDAP_ERR("Invalid 'user.scope' value \"%s\", expected 'sub', 'one', 'base' or 'children'",
inst->userobj_scope_str);
goto error;
}
inst->groupobj_scope = fr_str2int(ldap_scope, inst->groupobj_scope_str, -1);
if (inst->groupobj_scope < 0) {
LDAP_ERR("Invalid 'group.scope' value \"%s\", expected 'sub', 'one', 'base' or 'children'",
inst->groupobj_scope_str);
goto error;
}
inst->clientobj_scope = fr_str2int(ldap_scope, inst->clientobj_scope_str, -1);
if (inst->clientobj_scope < 0) {
LDAP_ERR("Invalid 'client.scope' value \"%s\", expected 'sub', 'one', 'base' or 'children'",
inst->clientobj_scope_str);
goto error;
}
if (inst->tls_require_cert_str) {
#ifdef LDAP_OPT_X_TLS_NEVER
/*
* Convert cert strictness to enumerated constants
*/
inst->tls_require_cert = fr_str2int(ldap_tls_require_cert, inst->tls_require_cert_str, -1);
if (inst->tls_require_cert < 0) {
LDAP_ERR("Invalid 'tls.require_cert' value \"%s\", expected 'never', 'demand', 'allow', "
"'try' or 'hard'", inst->tls_require_cert_str);
goto error;
}
#else
LDAP_ERR("Modifying 'tls.require_cert' is not supported by current version of libldap. "
"Please upgrade libldap and rebuild this module");
goto error;
#endif
}
/*
* Build the attribute map
*/
if (rlm_ldap_map_verify(inst, &(inst->user_map)) < 0) {
goto error;
}
/*
* Group comparison checks.
*/
if (cf_section_name2(conf)) {
ATTR_FLAGS flags;
char buffer[256];
snprintf(buffer, sizeof(buffer), "%s-Ldap-Group",
inst->xlat_name);
memset(&flags, 0, sizeof(flags));
if (dict_addattr(buffer, -1, 0, PW_TYPE_STRING, flags) < 0) {
LDAP_ERR("Error creating group attribute: %s", fr_strerror());
return -1;
}
inst->group_da = dict_attrbyname(buffer);
if (!inst->group_da) {
LDAP_ERR("Failed creating attribute %s", buffer);
goto error;
}
paircompare_register(inst->group_da, dict_attrbyvalue(PW_USER_NAME, 0), false, rlm_ldap_groupcmp, inst);
/*
* Were the default instance
*/
} else {
inst->group_da = dict_attrbyvalue(PW_LDAP_GROUP, 0);
paircompare_register(dict_attrbyvalue(PW_LDAP_GROUP, 0), dict_attrbyvalue(PW_USER_NAME, 0),
false, rlm_ldap_groupcmp, inst);
}
xlat_register(inst->xlat_name, ldap_xlat, rlm_ldap_escape_func, inst);
/*
* Setup the cache attribute
*/
if (inst->cache_attribute) {
ATTR_FLAGS flags;
memset(&flags, 0, sizeof(flags));
if (dict_addattr(inst->cache_attribute, -1, 0, PW_TYPE_STRING, flags) < 0) {
LDAP_ERR("Error creating cache attribute: %s", fr_strerror());
return -1;
}
inst->cache_da = dict_attrbyname(inst->cache_attribute);
} else {
inst->cache_da = inst->group_da; /* Default to the group_da */
}
/*
* Initialize the socket pool.
*/
inst->pool = fr_connection_pool_init(inst->cs, inst, mod_conn_create, NULL, mod_conn_delete, NULL);
if (!inst->pool) {
return -1;
}
/*
* Bulk load dynamic clients.
*/
if (inst->do_clients) {
if (rlm_ldap_load_clients(inst) < 0) {
LDAP_ERR("Error loading clients");
return -1;
}
}
return 0;
error:
return -1;
}
static int mod_instantiate(CONF_SECTION *conf, void *instance)
{
rlm_sql_t *inst = instance;
/*
* Hack...
*/
inst->config = &inst->myconfig;
inst->cs = conf;
inst->config->xlat_name = cf_section_name2(conf);
if (!inst->config->xlat_name) {
inst->config->xlat_name = cf_section_name1(conf);
} else {
char *group_name;
DICT_ATTR const *da;
ATTR_FLAGS flags;
/*
* Allocate room for <instance>-SQL-Group
*/
group_name = talloc_typed_asprintf(inst, "%s-SQL-Group", inst->config->xlat_name);
DEBUG("rlm_sql (%s): Creating new attribute %s",
inst->config->xlat_name, group_name);
memset(&flags, 0, sizeof(flags));
if (dict_addattr(group_name, -1, 0, PW_TYPE_STRING, flags) < 0) {
ERROR("rlm_sql (%s): Failed to create "
"attribute %s: %s", inst->config->xlat_name, group_name,
fr_strerror());
return -1;
}
da = dict_attrbyname(group_name);
if (!da) {
ERROR("rlm_sql (%s): Failed to create "
"attribute %s", inst->config->xlat_name, group_name);
return -1;
}
if (inst->config->groupmemb_query) {
DEBUG("rlm_sql (%s): Registering sql_groupcmp for %s",
inst->config->xlat_name, group_name);
paircompare_register(da, dict_attrbyvalue(PW_USER_NAME, 0),
false, sql_groupcmp, inst);
}
}
rad_assert(inst->config->xlat_name);
/*
* Sanity check for crazy people.
*/
if (strncmp(inst->config->sql_driver_name, "rlm_sql_", 8) != 0) {
ERROR("rlm_sql (%s): \"%s\" is NOT an SQL driver!", inst->config->xlat_name, inst->config->sql_driver_name);
return -1;
}
/*
* We need authorize_group_check_query or authorize_group_reply_query
* if group_membership_query is set.
*
* Or we need group_membership_query if authorize_group_check_query or
* authorize_group_reply_query is set.
*/
if (!inst->config->groupmemb_query) {
if (inst->config->authorize_group_check_query) {
WARN("rlm_sql (%s): Ignoring authorize_group_reply_query as group_membership_query "
"is not configured", inst->config->xlat_name);
}
if (inst->config->authorize_group_reply_query) {
WARN("rlm_sql (%s): Ignoring authorize_group_check_query as group_membership_query "
"is not configured", inst->config->xlat_name);
}
} else {
if (!inst->config->authorize_group_check_query) {
ERROR("rlm_sql (%s): authorize_group_check_query must be configured as group_membership_query "
"is configured", inst->config->xlat_name);
return -1;
}
if (!inst->config->authorize_group_reply_query) {
ERROR("rlm_sql (%s): authorize_group_reply_query must be configured as group_membership_query "
"is configured", inst->config->xlat_name);
return -1;
}
}
/*
* This will always exist, as cf_section_parse_init()
* will create it if it doesn't exist. However, the
* "reference" config item won't exist in an auto-created
* configuration. So if that doesn't exist, we ignore
* the whole subsection.
*/
inst->config->accounting.cs = cf_section_sub_find(conf, "accounting");
inst->config->accounting.reference_cp = (cf_pair_find(inst->config->accounting.cs, "reference") != NULL);
inst->config->postauth.cs = cf_section_sub_find(conf, "post-auth");
inst->config->postauth.reference_cp = (cf_pair_find(inst->config->postauth.cs, "reference") != NULL);
/*
* Cache the SQL-User-Name DICT_ATTR, so we can be slightly
* more efficient about creating SQL-User-Name attributes.
*/
inst->sql_user = dict_attrbyname("SQL-User-Name");
if (!inst->sql_user) {
return -1;
}
/*
* Export these methods, too. This avoids RTDL_GLOBAL.
*/
inst->sql_set_user = sql_set_user;
inst->sql_escape_func = sql_escape_func;
inst->sql_query = rlm_sql_query;
inst->sql_select_query = rlm_sql_select_query;
inst->sql_fetch_row = rlm_sql_fetch_row;
/*
* Register the SQL xlat function
*/
xlat_register(inst->config->xlat_name, sql_xlat, sql_escape_func, inst);
/*
* Load the appropriate driver for our database
*/
inst->handle = lt_dlopenext(inst->config->sql_driver_name);
if (!inst->handle) {
ERROR("Could not link driver %s: %s", inst->config->sql_driver_name, dlerror());
ERROR("Make sure it (and all its dependent libraries!) are in the search path of your system's ld");
return -1;
}
inst->module = (rlm_sql_module_t *) dlsym(inst->handle,
inst->config->sql_driver_name);
if (!inst->module) {
ERROR("Could not link symbol %s: %s", inst->config->sql_driver_name, dlerror());
return -1;
}
if (inst->module->mod_instantiate) {
CONF_SECTION *cs;
char const *name;
name = strrchr(inst->config->sql_driver_name, '_');
if (!name) {
name = inst->config->sql_driver_name;
} else {
name++;
}
cs = cf_section_sub_find(conf, name);
if (!cs) {
cs = cf_section_alloc(conf, name, NULL);
if (!cs) {
return -1;
}
}
/*
* It's up to the driver to register a destructor
*/
if (inst->module->mod_instantiate(cs, inst->config) < 0) {
return -1;
}
}
inst->ef = exfile_init(inst, 64, 30);
if (!inst->ef) {
cf_log_err_cs(conf, "Failed creating log file context");
return -1;
}
INFO("rlm_sql (%s): Driver %s (module %s) loaded and linked", inst->config->xlat_name,
inst->config->sql_driver_name, inst->module->name);
/*
* Initialise the connection pool for this instance
*/
INFO("rlm_sql (%s): Attempting to connect to database \"%s\"", inst->config->xlat_name, inst->config->sql_db);
inst->pool = fr_connection_pool_module_init(inst->cs, inst, mod_conn_create, NULL, NULL);
if (!inst->pool) return -1;
if (inst->config->groupmemb_query) {
paircompare_register(dict_attrbyvalue(PW_SQL_GROUP, 0),
dict_attrbyvalue(PW_USER_NAME, 0), false, sql_groupcmp, inst);
}
if (inst->config->do_clients) {
if (generate_sql_clients(inst) == -1){
ERROR("Failed to load clients from SQL");
return -1;
}
}
return RLM_MODULE_OK;
}
static REQUEST *request_setup(FILE *fp)
{
VALUE_PAIR *vp;
REQUEST *request;
vp_cursor_t cursor;
/*
* Create and initialize the new request.
*/
request = request_alloc(NULL);
request->packet = rad_alloc(request, false);
if (!request->packet) {
ERROR("No memory");
talloc_free(request);
return NULL;
}
request->reply = rad_alloc(request, false);
if (!request->reply) {
ERROR("No memory");
talloc_free(request);
return NULL;
}
request->listener = listen_alloc(request);
request->client = client_alloc(request);
request->number = 0;
request->master_state = REQUEST_ACTIVE;
request->child_state = REQUEST_RUNNING;
request->handle = NULL;
request->server = talloc_typed_strdup(request, "default");
request->root = &main_config;
/*
* Read packet from fp
*/
if (readvp2(request->packet, &request->packet->vps, fp, &filedone) < 0) {
fr_perror("unittest");
talloc_free(request);
return NULL;
}
/*
* Set the defaults for IPs, etc.
*/
request->packet->code = PW_CODE_ACCESS_REQUEST;
request->packet->src_ipaddr.af = AF_INET;
request->packet->src_ipaddr.ipaddr.ip4addr.s_addr = htonl(INADDR_LOOPBACK);
request->packet->src_port = 18120;
request->packet->dst_ipaddr.af = AF_INET;
request->packet->dst_ipaddr.ipaddr.ip4addr.s_addr = htonl(INADDR_LOOPBACK);
request->packet->dst_port = 1812;
/*
* Copied from radclient
*/
#if 1
/*
* Fix up Digest-Attributes issues
*/
for (vp = fr_cursor_init(&cursor, &request->packet->vps);
vp;
vp = fr_cursor_next(&cursor)) {
/*
* Double quoted strings get marked up as xlat expansions,
* but we don't support that here.
*/
if (vp->type == VT_XLAT) {
vp->vp_strvalue = vp->value.xlat;
vp->value.xlat = NULL;
vp->type = VT_DATA;
}
if (!vp->da->vendor) switch (vp->da->attr) {
default:
break;
/*
* Allow it to set the packet type in
* the attributes read from the file.
*/
case PW_PACKET_TYPE:
request->packet->code = vp->vp_integer;
break;
case PW_PACKET_DST_PORT:
request->packet->dst_port = (vp->vp_integer & 0xffff);
break;
case PW_PACKET_DST_IP_ADDRESS:
request->packet->dst_ipaddr.af = AF_INET;
request->packet->dst_ipaddr.ipaddr.ip4addr.s_addr = vp->vp_ipaddr;
break;
case PW_PACKET_DST_IPV6_ADDRESS:
request->packet->dst_ipaddr.af = AF_INET6;
request->packet->dst_ipaddr.ipaddr.ip6addr = vp->vp_ipv6addr;
break;
case PW_PACKET_SRC_PORT:
request->packet->src_port = (vp->vp_integer & 0xffff);
break;
case PW_PACKET_SRC_IP_ADDRESS:
request->packet->src_ipaddr.af = AF_INET;
request->packet->src_ipaddr.ipaddr.ip4addr.s_addr = vp->vp_ipaddr;
break;
case PW_PACKET_SRC_IPV6_ADDRESS:
request->packet->src_ipaddr.af = AF_INET6;
request->packet->src_ipaddr.ipaddr.ip6addr = vp->vp_ipv6addr;
break;
case PW_CHAP_PASSWORD: {
int i, already_hex = 0;
/*
* If it's 17 octets, it *might* be already encoded.
* Or, it might just be a 17-character password (maybe UTF-8)
* Check it for non-printable characters. The odds of ALL
* of the characters being 32..255 is (1-7/8)^17, or (1/8)^17,
* or 1/(2^51), which is pretty much zero.
*/
if (vp->length == 17) {
for (i = 0; i < 17; i++) {
if (vp->vp_octets[i] < 32) {
already_hex = 1;
break;
}
}
}
/*
* Allow the user to specify ASCII or hex CHAP-Password
*/
if (!already_hex) {
uint8_t *p;
size_t len, len2;
len = len2 = vp->length;
if (len2 < 17) len2 = 17;
p = talloc_zero_array(vp, uint8_t, len2);
memcpy(p, vp->vp_strvalue, len);
rad_chap_encode(request->packet,
p,
fr_rand() & 0xff, vp);
vp->vp_octets = p;
vp->length = 17;
}
}
break;
case PW_DIGEST_REALM:
case PW_DIGEST_NONCE:
case PW_DIGEST_METHOD:
case PW_DIGEST_URI:
case PW_DIGEST_QOP:
case PW_DIGEST_ALGORITHM:
case PW_DIGEST_BODY_DIGEST:
case PW_DIGEST_CNONCE:
case PW_DIGEST_NONCE_COUNT:
case PW_DIGEST_USER_NAME:
/* overlapping! */
{
DICT_ATTR const *da;
uint8_t *p, *q;
p = talloc_array(vp, uint8_t, vp->length + 2);
memcpy(p + 2, vp->vp_octets, vp->length);
p[0] = vp->da->attr - PW_DIGEST_REALM + 1;
vp->length += 2;
p[1] = vp->length;
da = dict_attrbyvalue(PW_DIGEST_ATTRIBUTES, 0);
rad_assert(da != NULL);
vp->da = da;
/*
* Re-do pairmemsteal ourselves,
* because we play games with
* vp->da, and pairmemsteal goes
* to GREAT lengths to sanitize
* and fix and change and
* double-check the various
* fields.
*/
memcpy(&q, &vp->vp_octets, sizeof(q));
talloc_free(q);
vp->vp_octets = talloc_steal(vp, p);
vp->type = VT_DATA;
VERIFY_VP(vp);
}
break;
}
} /* loop over the VP's we read in */
#endif
if (debug_flag) {
for (vp = fr_cursor_init(&cursor, &request->packet->vps);
vp;
vp = fr_cursor_next(&cursor)) {
/*
* Take this opportunity to verify all the VALUE_PAIRs are still valid.
*/
if (!talloc_get_type(vp, VALUE_PAIR)) {
ERROR("Expected VALUE_PAIR pointer got \"%s\"", talloc_get_name(vp));
fr_log_talloc_report(vp);
rad_assert(0);
}
vp_print(fr_log_fp, vp);
}
fflush(fr_log_fp);
}
/*
* FIXME: set IPs, etc.
*/
request->packet->code = PW_CODE_ACCESS_REQUEST;
request->packet->src_ipaddr.af = AF_INET;
request->packet->src_ipaddr.ipaddr.ip4addr.s_addr = htonl(INADDR_LOOPBACK);
request->packet->src_port = 18120;
request->packet->dst_ipaddr.af = AF_INET;
request->packet->dst_ipaddr.ipaddr.ip4addr.s_addr = htonl(INADDR_LOOPBACK);
request->packet->dst_port = 1812;
/*
* Build the reply template from the request.
*/
request->reply->sockfd = request->packet->sockfd;
request->reply->dst_ipaddr = request->packet->src_ipaddr;
request->reply->src_ipaddr = request->packet->dst_ipaddr;
request->reply->dst_port = request->packet->src_port;
request->reply->src_port = request->packet->dst_port;
request->reply->id = request->packet->id;
request->reply->code = 0; /* UNKNOWN code */
memcpy(request->reply->vector, request->packet->vector,
sizeof(request->reply->vector));
request->reply->vps = NULL;
request->reply->data = NULL;
request->reply->data_len = 0;
/*
* Debugging
*/
request->log.lvl = debug_flag;
request->log.func = vradlog_request;
request->username = pairfind(request->packet->vps, PW_USER_NAME, 0, TAG_ANY);
request->password = pairfind(request->packet->vps, PW_USER_PASSWORD, 0, TAG_ANY);
return request;
}
/*
* Calculate/check digest, and decode radius attributes.
*/
int rad_decode(RADIUS_PACKET *packet, RADIUS_PACKET *original,
const char *secret)
{
DICT_ATTR *attr;
uint32_t lvalue;
uint32_t vendorcode;
VALUE_PAIR **tail;
VALUE_PAIR *pair;
uint8_t *ptr;
int length;
int attribute;
int attrlen;
int vendorlen;
radius_packet_t *hdr;
hdr = (radius_packet_t *)packet->data;
/*
* Before we allocate memory for the attributes, do more
* sanity checking.
*/
ptr = hdr->data;
length = packet->data_len - AUTH_HDR_LEN;
while (length > 0) {
uint8_t msg_auth_vector[AUTH_VECTOR_LEN];
uint8_t calc_auth_vector[AUTH_VECTOR_LEN];
attrlen = ptr[1];
switch (ptr[0]) {
default: /* don't do anything. */
break;
/*
* Note that more than one Message-Authenticator
* attribute is invalid.
*/
case PW_MESSAGE_AUTHENTICATOR:
memcpy(msg_auth_vector, &ptr[2], sizeof(msg_auth_vector));
memset(&ptr[2], 0, AUTH_VECTOR_LEN);
switch (packet->code) {
default:
break;
case PW_AUTHENTICATION_ACK:
case PW_AUTHENTICATION_REJECT:
case PW_ACCESS_CHALLENGE:
if (original) {
memcpy(packet->data + 4, original->vector, AUTH_VECTOR_LEN);
}
break;
}
lrad_hmac_md5(packet->data, packet->data_len,
secret, strlen(secret), calc_auth_vector);
if (memcmp(calc_auth_vector, msg_auth_vector,
sizeof(calc_auth_vector)) != 0) {
char buffer[32];
librad_log("Received packet from %s with invalid Message-Authenticator! (Shared secret is incorrect.)",
ip_ntoa(buffer, packet->src_ipaddr));
return 1;
} /* else the message authenticator was good */
/*
* Reinitialize Authenticators.
*/
memcpy(&ptr[2], msg_auth_vector, AUTH_VECTOR_LEN);
memcpy(packet->data + 4, packet->vector, AUTH_VECTOR_LEN);
break;
} /* switch over the attributes */
ptr += attrlen;
length -= attrlen;
} /* loop over the packet, sanity checking the attributes */
/*
* Calculate and/or verify digest.
*/
switch(packet->code) {
int rcode;
case PW_AUTHENTICATION_REQUEST:
case PW_STATUS_SERVER:
case PW_DISCONNECT_REQUEST:
/*
* The authentication vector is random
* nonsense, invented by the client.
*/
break;
case PW_ACCOUNTING_REQUEST:
if (calc_acctdigest(packet, secret) > 1) {
char buffer[32];
librad_log("Received Accounting-Request packet "
"from %s with invalid signature! (Shared secret is incorrect.)",
ip_ntoa(buffer, packet->src_ipaddr));
return 1;
}
break;
/* Verify the reply digest */
case PW_AUTHENTICATION_ACK:
case PW_AUTHENTICATION_REJECT:
case PW_ACCOUNTING_RESPONSE:
rcode = calc_replydigest(packet, original, secret);
if (rcode > 1) {
char buffer[32];
librad_log("Received %s packet "
"from %s with invalid signature (err=%d)! (Shared secret is incorrect.)",
packet_codes[packet->code],
ip_ntoa(buffer, packet->src_ipaddr),
rcode);
return 1;
}
break;
}
/*
* Extract attribute-value pairs
*/
ptr = hdr->data;
length = packet->data_len - AUTH_HDR_LEN;
packet->vps = NULL;
tail = &packet->vps;
vendorcode = 0;
vendorlen = 0;
while(length > 0) {
if (vendorlen > 0) {
attribute = *ptr++ | (vendorcode << 16);
attrlen = *ptr++;
} else {
attribute = *ptr++;
attrlen = *ptr++;
}
attrlen -= 2;
length -= 2;
/*
* This could be a Vendor-Specific attribute.
*
*/
if ((vendorlen <= 0) &&
(attribute == PW_VENDOR_SPECIFIC) &&
(attrlen > 6)) {
memcpy(&lvalue, ptr, 4);
vendorcode = ntohl(lvalue);
if (vendorcode != 0) {
if (vendorcode == VENDORPEC_USR) {
ptr += 4;
memcpy(&lvalue, ptr, 4);
/*printf("received USR %04x\n", ntohl(lvalue));*/
attribute = (ntohl(lvalue) & 0xFFFF) |
(vendorcode << 16);
ptr += 4;
attrlen -= 8;
length -= 8;
} else {
ptr += 4;
vendorlen = attrlen - 4;
attribute = *ptr++ | (vendorcode << 16);
attrlen = *ptr++;
attrlen -= 2;
length -= 6;
}
}
/*
* Else the vendor wasn't found...
*/
}
/*
* FIXME: should we us paircreate() ?
*/
if ((pair = malloc(sizeof(VALUE_PAIR))) == NULL) {
pairfree(&packet->vps);
librad_log("out of memory");
errno = ENOMEM;
return -1;
}
memset(pair, 0, sizeof(VALUE_PAIR));
if ((attr = dict_attrbyvalue(attribute)) == NULL) {
snprintf(pair->name, sizeof(pair->name), "Attr-%d", attribute);
pair->type = PW_TYPE_OCTETS;
} else {
strcpy(pair->name, attr->name);
pair->type = attr->type;
pair->flags = attr->flags;
}
pair->attribute = attribute;
pair->length = attrlen;
pair->operator = T_OP_EQ;
pair->next = NULL;
switch (pair->type) {
case PW_TYPE_OCTETS:
case PW_TYPE_ABINARY:
case PW_TYPE_STRING:
if (pair->flags.has_tag &&
pair->type == PW_TYPE_STRING) {
int offset = 0;
if ((pair->length > 0) && TAG_VALID(*ptr)) {
pair->flags.tag = *ptr;
pair->length--;
offset = 1;
} else if (pair->flags.encrypt == FLAG_ENCRYPT_TUNNEL_PASSWORD) {
/*
* from RFC2868 - 3.5. Tunnel-Password
* If the value of the Tag field is greater than
* 0x00 and less than or equal to 0x1F, it SHOULD
* be interpreted as indicating which tunnel
* (of several alternatives) this attribute pertains;
* otherwise, the Tag field SHOULD be ignored.
*/
pair->flags.tag = 0x00;
if (pair->length > 0) pair->length--;
offset = 1;
} else {
pair->flags.tag = 0x00;
}
/*
* pair->length may be zero here...
*/
memcpy(pair->strvalue, ptr + offset,
pair->length);
} else {
/* attrlen always < MAX_STRING_LEN */
memcpy(pair->strvalue, ptr, attrlen);
pair->flags.tag = 0;
}
/*
* FIXME: HACK for non-updated dictionaries.
* REMOVE in a future release.
*/
if ((strcmp(pair->name, "Ascend-Send-Secret") == 0) ||
(strcmp(pair->name, "Ascend-Receive-Secret") == 0)) {
pair->flags.encrypt = FLAG_ENCRYPT_ASCEND_SECRET;
}
if (pair->attribute == PW_USER_PASSWORD) {
pair->flags.encrypt = FLAG_ENCRYPT_USER_PASSWORD;
}
/*
* Decrypt passwords here.
*/
switch (pair->flags.encrypt) {
default:
break;
/*
* User-Password
*/
case FLAG_ENCRYPT_USER_PASSWORD:
if (original) {
rad_pwdecode((char *)pair->strvalue,
pair->length, secret,
(char *)original->vector);
} else {
rad_pwdecode((char *)pair->strvalue,
pair->length, secret,
(char *)packet->vector);
}
if (pair->attribute == PW_USER_PASSWORD) {
pair->length = strlen(pair->strvalue);
}
break;
/*
* Tunnel-Password
*/
case FLAG_ENCRYPT_TUNNEL_PASSWORD:
if (!original) {
librad_log("ERROR: Tunnel-Password attribute in request: Cannot decrypt it.");
return -1;
}
rad_tunnel_pwdecode((char *)pair->strvalue,
&pair->length,
secret,
(char *)original->vector);
break;
/*
* Ascend-Send-Secret
* Ascend-Receive-Secret
*/
case FLAG_ENCRYPT_ASCEND_SECRET:
{
uint8_t my_digest[AUTH_VECTOR_LEN];
make_secret(my_digest,
original->vector,
secret, ptr);
memcpy(pair->strvalue, my_digest,
AUTH_VECTOR_LEN );
pair->strvalue[AUTH_VECTOR_LEN] = '\0';
pair->length = strlen(pair->strvalue);
}
break;
} /* switch over encryption flags */
break; /* from octets/string/abinary */
case PW_TYPE_INTEGER:
case PW_TYPE_DATE:
case PW_TYPE_IPADDR:
/*
* Check for RFC compliance. If the
* attribute isn't compliant, turn it
* into a string of raw octets.
*
* Also set the lvalue to something
* which should never match anything.
*/
if (attrlen != 4) {
pair->type = PW_TYPE_OCTETS;
memcpy(pair->strvalue, ptr, attrlen);
pair->lvalue = 0xbad1bad1;
break;
}
memcpy(&lvalue, ptr, 4);
if (attr->type != PW_TYPE_IPADDR) {
pair->lvalue = ntohl(lvalue);
} else {
/*
* It's an IP address, keep it in network
* byte order, and put the ASCII IP
* address or host name into the string
* value.
*/
pair->lvalue = lvalue;
ip_ntoa(pair->strvalue, pair->lvalue);
}
/*
* Only PW_TYPE_INTEGER should have tags.
*/
if (pair->flags.has_tag &&
pair->type == PW_TYPE_INTEGER) {
pair->flags.tag = (pair->lvalue >> 24) & 0xff;
pair->lvalue &= 0x00ffffff;
}
if (attr->type == PW_TYPE_INTEGER) {
DICT_VALUE *dval;
dval = dict_valbyattr(pair->attribute,
pair->lvalue);
if (dval) {
strNcpy(pair->strvalue,
dval->name,
sizeof(pair->strvalue));
}
}
break;
default:
DEBUG(" %s (Unknown Type %d)\n",
attr->name,attr->type);
free(pair);
pair = NULL;
break;
}
if (pair) {
debug_pair(pair);
*tail = pair;
tail = &pair->next;
}
ptr += attrlen;
length -= attrlen;
if (vendorlen > 0) vendorlen -= (attrlen + 2);
}
/*
* Initialize a radclient data structure and add it to
* the global linked list.
*/
static int radclient_init(TALLOC_CTX *ctx, rc_file_pair_t *files)
{
FILE *packets, *filters = NULL;
vp_cursor_t cursor;
VALUE_PAIR *vp;
rc_request_t *request;
bool packets_done = false;
uint64_t num = 0;
assert(files->packets != NULL);
/*
* Determine where to read the VP's from.
*/
if (strcmp(files->packets, "-") != 0) {
packets = fopen(files->packets, "r");
if (!packets) {
ERROR("Error opening %s: %s", files->packets, strerror(errno));
return 0;
}
/*
* Read in the pairs representing the expected response.
*/
if (files->filters) {
filters = fopen(files->filters, "r");
if (!filters) {
ERROR("Error opening %s: %s", files->filters, strerror(errno));
fclose(packets);
return 0;
}
}
} else {
packets = stdin;
}
/*
* Loop until the file is done.
*/
do {
/*
* Allocate it.
*/
request = talloc_zero(ctx, rc_request_t);
if (!request) {
ERROR("Out of memory");
goto error;
}
request->packet = rad_alloc(request, true);
if (!request->packet) {
ERROR("Out of memory");
goto error;
}
#ifdef WITH_TCP
request->packet->src_ipaddr = client_ipaddr;
request->packet->src_port = client_port;
request->packet->dst_ipaddr = server_ipaddr;
request->packet->dst_port = server_port;
request->packet->proto = ipproto;
#endif
request->files = files;
request->packet->id = -1; /* allocate when sending */
request->num = num++;
/*
* Read the request VP's.
*/
if (fr_pair_list_afrom_file(request->packet, &request->packet->vps, packets, &packets_done) < 0) {
char const *input;
if ((files->packets[0] == '-') && (files->packets[1] == '\0')) {
input = "stdin";
} else {
input = files->packets;
}
REDEBUG("Error parsing \"%s\"", input);
goto error;
}
/*
* Skip empty entries
*/
if (!request->packet->vps) {
talloc_free(request);
continue;
}
/*
* Read in filter VP's.
*/
if (filters) {
bool filters_done;
if (fr_pair_list_afrom_file(request, &request->filter, filters, &filters_done) < 0) {
REDEBUG("Error parsing \"%s\"", files->filters);
goto error;
}
if (filters_done && !packets_done) {
REDEBUG("Differing number of packets/filters in %s:%s "
"(too many requests))", files->packets, files->filters);
goto error;
}
if (!filters_done && packets_done) {
REDEBUG("Differing number of packets/filters in %s:%s "
"(too many filters))", files->packets, files->filters);
goto error;
}
/*
* xlat expansions aren't supported here
*/
for (vp = fr_cursor_init(&cursor, &request->filter);
vp;
vp = fr_cursor_next(&cursor)) {
if (vp->type == VT_XLAT) {
vp->type = VT_DATA;
vp->vp_strvalue = vp->xlat;
vp->vp_length = talloc_array_length(vp->vp_strvalue) - 1;
}
if (vp->da->vendor == 0 ) switch (vp->da->attr) {
case PW_RESPONSE_PACKET_TYPE:
case PW_PACKET_TYPE:
fr_cursor_remove(&cursor); /* so we don't break the filter */
request->filter_code = vp->vp_integer;
talloc_free(vp);
default:
break;
}
}
/*
* This allows efficient list comparisons later
*/
fr_pair_list_sort(&request->filter, fr_pair_cmp_by_da_tag);
}
/*
* Process special attributes
*/
for (vp = fr_cursor_init(&cursor, &request->packet->vps);
vp;
vp = fr_cursor_next(&cursor)) {
/*
* Double quoted strings get marked up as xlat expansions,
* but we don't support that in request.
*/
if (vp->type == VT_XLAT) {
vp->type = VT_DATA;
vp->vp_strvalue = vp->xlat;
vp->vp_length = talloc_array_length(vp->vp_strvalue) - 1;
}
if (!vp->da->vendor) switch (vp->da->attr) {
default:
break;
/*
* Allow it to set the packet type in
* the attributes read from the file.
*/
case PW_PACKET_TYPE:
request->packet->code = vp->vp_integer;
break;
case PW_RESPONSE_PACKET_TYPE:
request->filter_code = vp->vp_integer;
break;
case PW_PACKET_DST_PORT:
request->packet->dst_port = (vp->vp_integer & 0xffff);
break;
case PW_PACKET_DST_IP_ADDRESS:
request->packet->dst_ipaddr.af = AF_INET;
request->packet->dst_ipaddr.ipaddr.ip4addr.s_addr = vp->vp_ipaddr;
request->packet->dst_ipaddr.prefix = 32;
break;
case PW_PACKET_DST_IPV6_ADDRESS:
request->packet->dst_ipaddr.af = AF_INET6;
request->packet->dst_ipaddr.ipaddr.ip6addr = vp->vp_ipv6addr;
request->packet->dst_ipaddr.prefix = 128;
break;
case PW_PACKET_SRC_PORT:
if ((vp->vp_integer < 1024) ||
(vp->vp_integer > 65535)) {
ERROR("Invalid value '%u' for Packet-Src-Port", vp->vp_integer);
goto error;
}
request->packet->src_port = (vp->vp_integer & 0xffff);
break;
case PW_PACKET_SRC_IP_ADDRESS:
request->packet->src_ipaddr.af = AF_INET;
request->packet->src_ipaddr.ipaddr.ip4addr.s_addr = vp->vp_ipaddr;
request->packet->src_ipaddr.prefix = 32;
break;
case PW_PACKET_SRC_IPV6_ADDRESS:
request->packet->src_ipaddr.af = AF_INET6;
request->packet->src_ipaddr.ipaddr.ip6addr = vp->vp_ipv6addr;
request->packet->src_ipaddr.prefix = 128;
break;
case PW_DIGEST_REALM:
case PW_DIGEST_NONCE:
case PW_DIGEST_METHOD:
case PW_DIGEST_URI:
case PW_DIGEST_QOP:
case PW_DIGEST_ALGORITHM:
case PW_DIGEST_BODY_DIGEST:
case PW_DIGEST_CNONCE:
case PW_DIGEST_NONCE_COUNT:
case PW_DIGEST_USER_NAME:
/* overlapping! */
{
DICT_ATTR const *da;
uint8_t *p, *q;
p = talloc_array(vp, uint8_t, vp->vp_length + 2);
memcpy(p + 2, vp->vp_octets, vp->vp_length);
p[0] = vp->da->attr - PW_DIGEST_REALM + 1;
vp->vp_length += 2;
p[1] = vp->vp_length;
da = dict_attrbyvalue(PW_DIGEST_ATTRIBUTES, 0);
if (!da) {
ERROR("Out of memory");
goto error;
}
vp->da = da;
/*
* Re-do fr_pair_value_memsteal ourselves,
* because we play games with
* vp->da, and fr_pair_value_memsteal goes
* to GREAT lengths to sanitize
* and fix and change and
* double-check the various
* fields.
*/
memcpy(&q, &vp->vp_octets, sizeof(q));
talloc_free(q);
vp->vp_octets = talloc_steal(vp, p);
vp->type = VT_DATA;
VERIFY_VP(vp);
}
break;
/*
* Cache this for later.
*/
case PW_CLEARTEXT_PASSWORD:
request->password = vp;
break;
/*
* Keep a copy of the the password attribute.
*/
case PW_CHAP_PASSWORD:
/*
* If it's already hex, do nothing.
*/
if ((vp->vp_length == 17) &&
(already_hex(vp))) break;
/*
* CHAP-Password is octets, so it may not be zero terminated.
*/
request->password = fr_pair_make(request->packet, &request->packet->vps, "Cleartext-Password",
"", T_OP_EQ);
fr_pair_value_bstrncpy(request->password, vp->vp_strvalue, vp->vp_length);
break;
case PW_USER_PASSWORD:
case PW_MS_CHAP_PASSWORD:
request->password = fr_pair_make(request->packet, &request->packet->vps, "Cleartext-Password",
vp->vp_strvalue, T_OP_EQ);
break;
case PW_RADCLIENT_TEST_NAME:
request->name = vp->vp_strvalue;
break;
}
} /* loop over the VP's we read in */
/*
* Use the default set on the command line
*/
if (request->packet->code == PW_CODE_UNDEFINED) request->packet->code = packet_code;
/*
* Default to the filename
*/
if (!request->name) request->name = request->files->packets;
/*
* Automatically set the response code from the request code
* (if one wasn't already set).
*/
if (request->filter_code == PW_CODE_UNDEFINED) {
switch (request->packet->code) {
case PW_CODE_ACCESS_REQUEST:
request->filter_code = PW_CODE_ACCESS_ACCEPT;
break;
case PW_CODE_ACCOUNTING_REQUEST:
request->filter_code = PW_CODE_ACCOUNTING_RESPONSE;
break;
case PW_CODE_COA_REQUEST:
request->filter_code = PW_CODE_COA_ACK;
break;
case PW_CODE_DISCONNECT_REQUEST:
request->filter_code = PW_CODE_DISCONNECT_ACK;
break;
case PW_CODE_STATUS_SERVER:
switch (radclient_get_code(request->packet->dst_port)) {
case PW_CODE_ACCESS_REQUEST:
request->filter_code = PW_CODE_ACCESS_ACCEPT;
break;
case PW_CODE_ACCOUNTING_REQUEST:
request->filter_code = PW_CODE_ACCOUNTING_RESPONSE;
break;
default:
REDEBUG("Can't determine expected response to Status-Server request, specify "
"a well known RADIUS port, or add a Response-Packet-Type attribute "
"to the request of filter");
goto error;
}
break;
case PW_CODE_UNDEFINED:
REDEBUG("Both Packet-Type and Response-Packet-Type undefined, specify at least one, "
"or a well known RADIUS port");
goto error;
default:
REDEBUG("Can't determine expected Response-Packet-Type for Packet-Type %i",
request->packet->code);
goto error;
}
/*
* Automatically set the request code from the response code
* (if one wasn't already set).
*/
} else if (request->packet->code == PW_CODE_UNDEFINED) {
switch (request->filter_code) {
case PW_CODE_ACCESS_ACCEPT:
case PW_CODE_ACCESS_REJECT:
request->packet->code = PW_CODE_ACCESS_REQUEST;
break;
case PW_CODE_ACCOUNTING_RESPONSE:
request->packet->code = PW_CODE_ACCOUNTING_REQUEST;
break;
case PW_CODE_DISCONNECT_ACK:
case PW_CODE_DISCONNECT_NAK:
request->packet->code = PW_CODE_DISCONNECT_REQUEST;
break;
case PW_CODE_COA_ACK:
case PW_CODE_COA_NAK:
request->packet->code = PW_CODE_COA_REQUEST;
break;
default:
REDEBUG("Can't determine expected Packet-Type for Response-Packet-Type %i",
request->filter_code);
goto error;
}
}
/*
* Automatically set the dst port (if one wasn't already set).
*/
if (request->packet->dst_port == 0) {
radclient_get_port(request->packet->code, &request->packet->dst_port);
if (request->packet->dst_port == 0) {
REDEBUG("Can't determine destination port");
goto error;
}
}
/*
* Add it to the tail of the list.
*/
if (!request_head) {
assert(rc_request_tail == NULL);
request_head = request;
request->prev = NULL;
} else {
assert(rc_request_tail->next == NULL);
rc_request_tail->next = request;
request->prev = rc_request_tail;
}
rc_request_tail = request;
request->next = NULL;
/*
* Set the destructor so it removes itself from the
* request list when freed. We don't set this until
* the packet is actually in the list, else we trigger
* the asserts in the free callback.
*/
talloc_set_destructor(request, _rc_request_free);
} while (!packets_done); /* loop until the file is done. */
if (packets != stdin) fclose(packets);
if (filters) fclose(filters);
/*
* And we're done.
*/
return 1;
error:
talloc_free(request);
if (packets != stdin) fclose(packets);
if (filters) fclose(filters);
return 0;
}
/** Write a single detail entry to file pointer
*
* @param[in] out Where to write entry.
* @param[in] inst Instance of rlm_detail.
* @param[in] request The current request.
* @param[in] packet associated with the request (request, reply, proxy-request, proxy-reply...).
* @param[in] compat Write out entry in compatibility mode.
*/
static int detail_write(FILE *out, detail_instance_t *inst, REQUEST *request, RADIUS_PACKET *packet, bool compat)
{
VALUE_PAIR *vp;
char timestamp[256];
if (radius_xlat(timestamp, sizeof(timestamp), request, inst->header, NULL, NULL) < 0) {
return -1;
}
#define WRITE(fmt, ...) do {\
if (fprintf(out, fmt, ## __VA_ARGS__) < 0) {\
RERROR("Failed writing to detail file: %s", fr_syserror(errno));\
return -1;\
}\
} while(0)
WRITE("%s\n", timestamp);
/*
* Write the information to the file.
*/
if (!compat) {
/*
* Print out names, if they're OK.
* Numbers, if not.
*/
if (is_radius_code(packet->code)) {
WRITE("\tPacket-Type = %s\n", fr_packet_codes[packet->code]);
} else {
WRITE("\tPacket-Type = %d\n", packet->code);
}
}
if (inst->log_srcdst) {
VALUE_PAIR src_vp, dst_vp;
memset(&src_vp, 0, sizeof(src_vp));
memset(&dst_vp, 0, sizeof(dst_vp));
switch (packet->src_ipaddr.af) {
case AF_INET:
src_vp.da = dict_attrbyvalue(PW_PACKET_SRC_IP_ADDRESS, 0);
src_vp.vp_ipaddr = packet->src_ipaddr.ipaddr.ip4addr.s_addr;
dst_vp.da = dict_attrbyvalue(PW_PACKET_DST_IP_ADDRESS, 0);
dst_vp.vp_ipaddr = packet->dst_ipaddr.ipaddr.ip4addr.s_addr;
break;
case AF_INET6:
src_vp.da = dict_attrbyvalue(PW_PACKET_SRC_IPV6_ADDRESS, 0);
memcpy(&src_vp.vp_ipv6addr, &packet->src_ipaddr.ipaddr.ip6addr,
sizeof(packet->src_ipaddr.ipaddr.ip6addr));
dst_vp.da = dict_attrbyvalue(PW_PACKET_DST_IPV6_ADDRESS, 0);
memcpy(&dst_vp.vp_ipv6addr, &packet->dst_ipaddr.ipaddr.ip6addr,
sizeof(packet->dst_ipaddr.ipaddr.ip6addr));
break;
default:
break;
}
detail_vp_print(request, out, &src_vp);
detail_vp_print(request, out, &dst_vp);
src_vp.da = dict_attrbyvalue(PW_PACKET_SRC_PORT, 0);
src_vp.vp_integer = packet->src_port;
dst_vp.da = dict_attrbyvalue(PW_PACKET_DST_PORT, 0);
dst_vp.vp_integer = packet->dst_port;
detail_vp_print(request, out, &src_vp);
detail_vp_print(request, out, &dst_vp);
}
{
vp_cursor_t cursor;
/* Write each attribute/value to the log file */
for (vp = fr_cursor_init(&cursor, &packet->vps);
vp;
vp = fr_cursor_next(&cursor)) {
FR_TOKEN op;
if (inst->ht && fr_hash_table_finddata(inst->ht, vp->da)) continue;
/*
* Don't print passwords in old format...
*/
if (compat && !vp->da->vendor && (vp->da->attr == PW_USER_PASSWORD)) continue;
/*
* Print all of the attributes, operator should always be '='.
*/
op = vp->op;
vp->op = T_OP_EQ;
vp_print(out, vp);
vp->op = op;
}
}
/*
* Add non-protocol attributes.
*/
if (compat) {
#ifdef WITH_PROXY
if (request->proxy) {
char proxy_buffer[128];
inet_ntop(request->proxy->dst_ipaddr.af, &request->proxy->dst_ipaddr.ipaddr,
proxy_buffer, sizeof(proxy_buffer));
WRITE("\tFreeradius-Proxied-To = %s\n", proxy_buffer);
}
#endif
WRITE("\tTimestamp = %ld\n", (unsigned long) request->timestamp);
}
WRITE("\n");
return 0;
}
/** Instantiate the module
*
* Creates a new instance of the module reading parameters from a configuration section.
*
* @param conf to parse.
* @param instance Where to write pointer to configuration data.
* @return 0 on success < 0 on failure.
*/
static int mod_instantiate(CONF_SECTION *conf, void *instance)
{
static bool version_done;
CONF_SECTION *options;
ldap_instance_t *inst = instance;
inst->cs = conf;
options = cf_section_sub_find(conf, "options");
if (!options || !cf_pair_find(options, "chase_referrals")) {
inst->chase_referrals_unset = true; /* use OpenLDAP defaults */
}
inst->xlat_name = cf_section_name2(conf);
if (!inst->xlat_name) {
inst->xlat_name = cf_section_name1(conf);
}
/*
* Only needs to be done once, prevents races in environment
* initialisation within libldap.
*
* See: https://github.com/arr2036/ldapperf/issues/2
*/
#ifdef HAVE_LDAP_INITIALIZE
ldap_initialize(&inst->handle, "");
#else
inst->handle = ldap_init("", 0);
#endif
/*
* Get version info from the LDAP API.
*/
if (!version_done) {
static LDAPAPIInfo info; /* static to quiet valgrind about this being uninitialised */
int ldap_errno;
version_done = true;
ldap_errno = ldap_get_option(NULL, LDAP_OPT_API_INFO, &info);
if (ldap_errno == LDAP_OPT_SUCCESS) {
if (strcmp(info.ldapai_vendor_name, LDAP_VENDOR_NAME) != 0) {
WARN("rlm_ldap: libldap vendor changed since the server was built");
WARN("rlm_ldap: linked: %s, built: %s", info.ldapai_vendor_name, LDAP_VENDOR_NAME);
}
if (info.ldapai_vendor_version != LDAP_VENDOR_VERSION) {
WARN("rlm_ldap: libldap version changed since the server was built");
WARN("rlm_ldap: linked: %i, built: %i",
info.ldapai_vendor_version, LDAP_VENDOR_VERSION);
}
INFO("rlm_ldap: libldap vendor: %s, version: %i", info.ldapai_vendor_name,
info.ldapai_vendor_version);
ldap_memfree(info.ldapai_vendor_name);
ldap_memfree(info.ldapai_extensions);
} else {
DEBUG("rlm_ldap: Falling back to build time libldap version info. Query for LDAP_OPT_API_INFO "
"returned: %i", ldap_errno);
INFO("rlm_ldap: libldap vendor: %s, version: %i.%i.%i", LDAP_VENDOR_NAME,
LDAP_VENDOR_VERSION_MAJOR, LDAP_VENDOR_VERSION_MINOR, LDAP_VENDOR_VERSION_PATCH);
}
}
/*
* If the configuration parameters can't be parsed, then fail.
*/
if ((parse_sub_section(inst, conf, &inst->accounting, RLM_COMPONENT_ACCT) < 0) ||
(parse_sub_section(inst, conf, &inst->postauth, RLM_COMPONENT_POST_AUTH) < 0)) {
cf_log_err_cs(conf, "Failed parsing configuration");
goto error;
}
/*
* Sanity checks for cacheable groups code.
*/
if (inst->cacheable_group_name && inst->groupobj_membership_filter) {
if (!inst->groupobj_name_attr) {
cf_log_err_cs(conf, "Directive 'group.name_attribute' must be set if cacheable "
"group names are enabled");
goto error;
}
}
/*
* Split original server value out into URI, server and port
* so whatever initialization function we use later will have
* the server information in the format it needs.
*/
if (ldap_is_ldap_url(inst->server)) {
LDAPURLDesc *ldap_url;
int port;
if (ldap_url_parse(inst->server, &ldap_url)){
cf_log_err_cs(conf, "Parsing LDAP URL \"%s\" failed", inst->server);
return -1;
}
/*
* Figure out the port from the URL
*/
if (ldap_url->lud_port == 0) {
if (strcmp(ldap_url->lud_scheme, "ldaps://") == 0) {
if (inst->start_tls == true) {
start_tls_error:
cf_log_err_cs(conf, "ldaps:// scheme is not compatible with 'start_tls'");
return -1;
}
port = 636;
} else {
port = 384;
}
} else {
port = ldap_url->lud_port;
}
inst->uri = inst->server;
inst->server = talloc_strdup(inst, ldap_url->lud_host);
if ((inst->port != 384) && (port != inst->port)) {
WARN("Non-default 'port' directive %i set to %i by LDAP URI", inst->port, port);
}
inst->port = port;
/*
* @todo We could set a few other top level
* directives using the URL, like base_dn
* and scope.
*/
ldap_free_urldesc(ldap_url);
/*
* We need to construct an LDAP URI
*/
} else {
switch (inst->port) {
default:
case 384:
inst->uri = talloc_asprintf(inst, "ldap://%s:%i/", inst->server, inst->port);
break;
case 636:
if (inst->start_tls == true) goto start_tls_error;
inst->uri = talloc_asprintf(inst, "ldaps://%s:%i/", inst->server, inst->port);
break;
}
}
#ifdef LDAP_OPT_X_TLS_NEVER
/*
* Workaround for servers which support LDAPS but not START TLS
*/
if (inst->port == LDAPS_PORT || inst->tls_mode) {
inst->tls_mode = LDAP_OPT_X_TLS_HARD;
} else {
inst->tls_mode = 0;
}
#endif
/*
* Convert dereference strings to enumerated constants
*/
if (inst->dereference_str) {
inst->dereference = fr_str2int(ldap_dereference, inst->dereference_str, -1);
if (inst->dereference < 0) {
cf_log_err_cs(conf, "Invalid 'dereference' value \"%s\", expected 'never', 'searching', "
"'finding' or 'always'", inst->dereference_str);
goto error;
}
}
#if LDAP_SET_REBIND_PROC_ARGS != 3
/*
* The 2-argument rebind doesn't take an instance variable. Our rebind function needs the instance
* variable for the username, password, etc.
*/
if (inst->rebind == true) {
cf_log_err_cs(conf, "Cannot use 'rebind' directive as this version of libldap "
"does not support the API that we need");
goto error;
}
#endif
/*
* Convert scope strings to enumerated constants
*/
inst->userobj_scope = fr_str2int(ldap_scope, inst->userobj_scope_str, -1);
if (inst->userobj_scope < 0) {
cf_log_err_cs(conf, "Invalid 'user.scope' value \"%s\", expected 'sub', 'one'"
#ifdef LDAP_SCOPE_CHILDREN
", 'base' or 'children'"
#else
" or 'base'"
#endif
, inst->userobj_scope_str);
goto error;
}
inst->groupobj_scope = fr_str2int(ldap_scope, inst->groupobj_scope_str, -1);
if (inst->groupobj_scope < 0) {
cf_log_err_cs(conf, "Invalid 'group.scope' value \"%s\", expected 'sub', 'one'"
#ifdef LDAP_SCOPE_CHILDREN
", 'base' or 'children'"
#else
" or 'base'"
#endif
, inst->groupobj_scope_str);
goto error;
}
inst->clientobj_scope = fr_str2int(ldap_scope, inst->clientobj_scope_str, -1);
if (inst->clientobj_scope < 0) {
cf_log_err_cs(conf, "Invalid 'client.scope' value \"%s\", expected 'sub', 'one'"
#ifdef LDAP_SCOPE_CHILDREN
", 'base' or 'children'"
#else
" or 'base'"
#endif
, inst->clientobj_scope_str);
goto error;
}
if (inst->tls_require_cert_str) {
#ifdef LDAP_OPT_X_TLS_NEVER
/*
* Convert cert strictness to enumerated constants
*/
inst->tls_require_cert = fr_str2int(ldap_tls_require_cert, inst->tls_require_cert_str, -1);
if (inst->tls_require_cert < 0) {
cf_log_err_cs(conf, "Invalid 'tls.require_cert' value \"%s\", expected 'never', "
"'demand', 'allow', 'try' or 'hard'", inst->tls_require_cert_str);
goto error;
}
#else
cf_log_err_cs(conf, "Modifying 'tls.require_cert' is not supported by current "
"version of libldap. Please upgrade or substitute current libldap and "
"rebuild this module");
goto error;
#endif
}
/*
* Build the attribute map
*/
if (map_afrom_cs(&inst->user_map, cf_section_sub_find(inst->cs, "update"),
PAIR_LIST_REPLY, PAIR_LIST_REQUEST, rlm_ldap_map_verify, inst,
LDAP_MAX_ATTRMAP) < 0) {
return -1;
}
/*
* Group comparison checks.
*/
if (cf_section_name2(conf)) {
static ATTR_FLAGS flags;
char buffer[256];
snprintf(buffer, sizeof(buffer), "%s-Ldap-Group", inst->xlat_name);
if (dict_addattr(buffer, -1, 0, PW_TYPE_STRING, flags) < 0) {
LDAP_ERR("Error creating group attribute: %s", fr_strerror());
return -1;
}
inst->group_da = dict_attrbyname(buffer);
if (!inst->group_da) {
LDAP_ERR("Failed creating attribute %s", buffer);
goto error;
}
paircompare_register(inst->group_da, dict_attrbyvalue(PW_USER_NAME, 0), false, rlm_ldap_groupcmp, inst);
/*
* Were the default instance
*/
} else {
inst->group_da = dict_attrbyvalue(PW_LDAP_GROUP, 0);
paircompare_register(dict_attrbyvalue(PW_LDAP_GROUP, 0), dict_attrbyvalue(PW_USER_NAME, 0),
false, rlm_ldap_groupcmp, inst);
}
xlat_register(inst->xlat_name, ldap_xlat, rlm_ldap_escape_func, inst);
/*
* Setup the cache attribute
*/
if (inst->cache_attribute) {
static ATTR_FLAGS flags;
if (dict_addattr(inst->cache_attribute, -1, 0, PW_TYPE_STRING, flags) < 0) {
LDAP_ERR("Error creating cache attribute: %s", fr_strerror());
goto error;
}
inst->cache_da = dict_attrbyname(inst->cache_attribute);
} else {
inst->cache_da = inst->group_da; /* Default to the group_da */
}
/*
* Initialize the socket pool.
*/
inst->pool = fr_connection_pool_module_init(inst->cs, inst, mod_conn_create, NULL, NULL);
if (!inst->pool) goto error;
/*
* Bulk load dynamic clients.
*/
if (inst->do_clients) {
CONF_SECTION *cs;
cs = cf_section_sub_find(inst->cs, "client");
if (!cs) {
cf_log_err_cs(conf, "Told to load clients but no client section found");
goto error;
}
cs = cf_section_sub_find(cs, "attribute");
if (!cs) {
cf_log_err_cs(conf, "Told to load clients but no attribute section found");
goto error;
}
if (rlm_ldap_client_load(inst, cs) < 0) {
cf_log_err_cs(conf, "Error loading clients");
return -1;
}
}
return 0;
error:
return -1;
}
/*
* Parse the module config sections, and load
* and call each module's init() function.
*
* Libtool makes your life a LOT easier, especially with libltdl.
* see: http://www.gnu.org/software/libtool/
*/
int setup_modules(void)
{
int comp;
CONF_SECTION *cs;
/*
* FIXME: This should be pulled from somewhere else.
*/
const char *filename="radiusd.conf";
/*
* No current list of modules: Go initialize libltdl.
*/
if (!module_list) {
/*
* Set the default list of preloaded symbols.
* This is used to initialize libltdl's list of
* preloaded modules.
*
* i.e. Static modules.
*/
LTDL_SET_PRELOADED_SYMBOLS();
if (lt_dlinit() != 0) {
radlog(L_ERR|L_CONS, "Failed to initialize libraries: %s\n",
lt_dlerror());
exit(1); /* FIXME */
}
/*
* Set the search path to ONLY our library directory.
* This prevents the modules from being found from
* any location on the disk.
*/
lt_dlsetsearchpath(radlib_dir);
DEBUG2("Module: Library search path is %s",
lt_dlgetsearchpath());
/*
* Initialize the components.
*/
for (comp = 0; comp < RLM_COMPONENT_COUNT; comp++) {
components[comp] = NULL;
}
} else {
detach_modules();
}
/*
* Create any DICT_VALUE's for the types. See
* 'doc/configurable_failover' for examples of 'authtype'
* used to create new Auth-Type values. In order to
* let the user create new names, we've got to look for
* those names, and create DICT_VALUE's for them.
*/
for (comp = 0; section_type_value[comp].section != NULL; comp++) {
const char *name2;
DICT_ATTR *dattr;
DICT_VALUE *dval;
CONF_SECTION *sub, *next;
CONF_PAIR *cp;
/*
* Big-time YUCK
*/
static int my_value = 32767;
cs = cf_section_find(section_type_value[comp].section);
if (!cs) continue;
sub = NULL;
do {
/*
* See if there's a sub-section by that
* name.
*/
next = cf_subsection_find_next(cs, sub,
section_type_value[comp].typename);
/*
* Allow some old names, too.
*/
if (!next && (comp <= 4)) {
next = cf_subsection_find_next(cs, sub,
old_section_type_value[comp].typename);
}
sub = next;
/*
* If so, look for it to define a new
* value.
*/
name2 = cf_section_name2(sub);
if (!name2) continue;
/*
* If the value already exists, don't
* create it again.
*/
dval = dict_valbyname(section_type_value[comp].attr,
name2);
if (dval) continue;
/*
* Find the attribute for the value.
*/
dattr = dict_attrbyvalue(section_type_value[comp].attr);
if (!dattr) continue;
/*
* Finally, create the new attribute.
*/
if (dict_addvalue(name2, dattr->name, my_value++) < 0) {
radlog(L_ERR, "%s", librad_errstr);
exit(1);
}
} while (sub != NULL);
/*
* Loop over the non-sub-sections, too.
*/
cp = NULL;
do {
/*
* See if there's a conf-pair by that
* name.
*/
cp = cf_pair_find_next(cs, cp, NULL);
if (!cp) break;
/*
* If the value already exists, don't
* create it again.
*/
name2 = cf_pair_attr(cp);
dval = dict_valbyname(section_type_value[comp].attr,
name2);
if (dval) continue;
/*
* Find the attribute for the value.
*/
dattr = dict_attrbyvalue(section_type_value[comp].attr);
if (!dattr) continue;
/*
* Finally, create the new attribute.
*/
if (dict_addvalue(name2, dattr->name, my_value++) < 0) {
radlog(L_ERR, "%s", librad_errstr);
exit(1);
}
} while (cp != NULL);
} /* over the sections which can have redundent sub-sections */
