* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
- * Copyright 2000,2006 The FreeRADIUS server project
- * Copyright 2000 Miquel van Smoorenburg <miquels@cistron.nl>
- * Copyright 2000 Alan DeKok <aland@ox.org>
+ * Copyright 2007 The FreeRADIUS server project
+ * Copyright 2007 Alan DeKok <aland@deployingradius.com>
*/
#include <freeradius-devel/ident.h>
#include <ctype.h>
#include <fcntl.h>
+#ifdef HAVE_REGEX_H
+#include <regex.h>
+
+/*
+ * For POSIX Regular expressions.
+ * (0) Means no extended regular expressions.
+ * REG_EXTENDED means use extended regular expressions.
+ */
+#ifndef REG_EXTENDED
+#define REG_EXTENDED (0)
+#endif
+
+#ifndef REG_NOSUB
+#define REG_NOSUB (0)
+#endif
+
+#ifndef REG_ICASE
+#define REG_ICASE (0)
+#endif
+#endif
+
static rbtree_t *realms_byname = NULL;
+#ifdef HAVE_REGEX_H
+typedef struct realm_regex_t {
+ REALM *realm;
+ struct realm_regex_t *next;
+} realm_regex_t;
+
+static realm_regex_t *realms_regex = NULL;
+
+#endif /* HAVE_REGEX_H */
+
+typedef struct realm_config_t {
+ CONF_SECTION *cs;
+ int dead_time;
+ int retry_count;
+ int retry_delay;
+ int fallback;
+ int wake_all_if_all_dead;
+} realm_config_t;
+
+static realm_config_t *realm_config = NULL;
+
+#ifdef WITH_PROXY
static rbtree_t *home_servers_byaddr = NULL;
static rbtree_t *home_servers_byname = NULL;
+#ifdef WITH_STATS
+static int home_server_max_number = 0;
+static rbtree_t *home_servers_bynumber = NULL;
+#endif
static rbtree_t *home_pools_byname = NULL;
+/*
+ * Map the proxy server configuration parameters to variables.
+ */
+static const CONF_PARSER proxy_config[] = {
+ { "retry_delay", PW_TYPE_INTEGER,
+ offsetof(realm_config_t, retry_delay),
+ NULL, Stringify(RETRY_DELAY) },
+
+ { "retry_count", PW_TYPE_INTEGER,
+ offsetof(realm_config_t, retry_count),
+ NULL, Stringify(RETRY_COUNT) },
+
+ { "default_fallback", PW_TYPE_BOOLEAN,
+ offsetof(realm_config_t, fallback),
+ NULL, "no" },
+
+ { "dead_time", PW_TYPE_INTEGER,
+ offsetof(realm_config_t, dead_time),
+ NULL, Stringify(DEAD_TIME) },
+
+ { "wake_all_if_all_dead", PW_TYPE_BOOLEAN,
+ offsetof(realm_config_t, wake_all_if_all_dead),
+ NULL, "no" },
+
+ { NULL, -1, 0, NULL, NULL }
+};
+#endif
+
static int realm_name_cmp(const void *one, const void *two)
{
const REALM *a = one;
}
+#ifdef WITH_PROXY
static int home_server_name_cmp(const void *one, const void *two)
{
const home_server *a = one;
const home_server *b = two;
+ if (a->type < b->type) return -1;
+ if (a->type > b->type) return +1;
+
return strcasecmp(a->name, b->name);
}
const home_server *a = one;
const home_server *b = two;
- if (a->ipaddr.af < b->ipaddr.af) return -1;
- if (a->ipaddr.af > b->ipaddr.af) return +1;
+ if (a->server && !b->server) return -1;
+ if (!a->server && b->server) return +1;
+
+ if (a->server && b->server) {
+ int rcode = a->type - b->type;
+ if (rcode != 0) return rcode;
+ return strcmp(a->server, b->server);
+ }
+
+#ifdef WITH_TCP
+ if (a->proto < b->proto) return -1;
+ if (a->proto > b->proto) return +1;
+#endif
if (a->port < b->port) return -1;
if (a->port > b->port) return +1;
- switch (a->ipaddr.af) {
- case AF_INET:
- return memcmp(&a->ipaddr.ipaddr.ip4addr,
- &b->ipaddr.ipaddr.ip4addr,
- sizeof(a->ipaddr.ipaddr.ip4addr));
- break;
- case AF_INET6:
- return memcmp(&a->ipaddr.ipaddr.ip6addr,
- &b->ipaddr.ipaddr.ip6addr,
- sizeof(a->ipaddr.ipaddr.ip6addr));
- break;
- default:
- break;
- }
-
- return -1;
+ return fr_ipaddr_cmp(&a->ipaddr, &b->ipaddr);
}
+#ifdef WITH_STATS
+static int home_server_number_cmp(const void *one, const void *two)
+{
+ const home_server *a = one;
+ const home_server *b = two;
+
+ return (a->number - b->number);
+}
+#endif
static int home_pool_name_cmp(const void *one, const void *two)
{
const home_pool_t *a = one;
const home_pool_t *b = two;
+ if (a->server_type < b->server_type) return -1;
+ if (a->server_type > b->server_type) return +1;
+
return strcasecmp(a->name, b->name);
}
-void realms_free(void)
+/*
+ * Xlat for %{home_server:foo}
+ */
+static size_t xlat_home_server(UNUSED void *instance, REQUEST *request,
+ char *fmt, char *out, size_t outlen,
+ UNUSED RADIUS_ESCAPE_STRING func)
{
- rbtree_free(home_servers_byname);
- home_servers_byname = NULL;
+ const char *value = NULL;
+ CONF_PAIR *cp;
- rbtree_free(home_servers_byaddr);
- home_servers_byaddr = NULL;
+ if (!fmt || !out || (outlen < 1)) return 0;
- rbtree_free(home_pools_byname);
- home_pools_byname = NULL;
+ if (!request || !request->home_server) {
+ *out = '\0';
+ return 0;
+ }
- rbtree_free(realms_byname);
- realms_byname = NULL;
+ cp = cf_pair_find(request->home_server->cs, fmt);
+ if (!cp || !(value = cf_pair_value(cp))) {
+ *out = '\0';
+ return 0;
+ }
+
+ strlcpy(out, value, outlen);
+
+ return strlen(out);
}
-int realms_init(const char *filename)
+/*
+ * Xlat for %{home_server_pool:foo}
+ */
+static size_t xlat_server_pool(UNUSED void *instance, REQUEST *request,
+ char *fmt, char *out, size_t outlen,
+ UNUSED RADIUS_ESCAPE_STRING func)
{
- CONF_SECTION *cs;
+ const char *value = NULL;
+ CONF_PAIR *cp;
- if (realms_byname) return 1;
+ if (!fmt || !out || (outlen < 1)) return 0;
- realms_byname = rbtree_create(realm_name_cmp, free, 0);
- if (!realms_byname) {
- realms_free();
+ if (!request || !request->home_pool) {
+ *out = '\0';
return 0;
}
- home_servers_byaddr = rbtree_create(home_server_addr_cmp, free, 0);
- if (!home_servers_byaddr) {
- realms_free();
+ cp = cf_pair_find(request->home_pool->cs, fmt);
+ if (!cp || !(value = cf_pair_value(cp))) {
+ *out = '\0';
return 0;
}
+
+ strlcpy(out, value, outlen);
- home_servers_byname = rbtree_create(home_server_name_cmp, NULL, 0);
- if (!home_servers_byname) {
- realms_free();
- return 0;
- }
+ return strlen(out);
+}
+#endif
- home_pools_byname = rbtree_create(home_pool_name_cmp, free, 0);
- if (!home_pools_byname) {
- realms_free();
- return 0;
- }
+void realms_free(void)
+{
+#ifdef WITH_PROXY
+#ifdef WITH_STATS
+ rbtree_free(home_servers_bynumber);
+ home_servers_bynumber = NULL;
+#endif
- for (cs = cf_subsection_find_next(mainconfig.config, NULL, "realm");
- cs != NULL;
- cs = cf_subsection_find_next(mainconfig.config, cs, "realm")) {
- if (!realm_add(filename, cs)) {
- realms_free();
- return 0;
+ rbtree_free(home_servers_byname);
+ home_servers_byname = NULL;
+
+ rbtree_free(home_servers_byaddr);
+ home_servers_byaddr = NULL;
+
+ rbtree_free(home_pools_byname);
+ home_pools_byname = NULL;
+#endif
+
+ rbtree_free(realms_byname);
+ realms_byname = NULL;
+
+#ifdef HAVE_REGEX_H
+ if (realms_regex) {
+ realm_regex_t *this, *next;
+
+ for (this = realms_regex; this != NULL; this = next) {
+ next = this->next;
+ free(this->realm);
+ free(this);
}
+ realms_regex = NULL;
}
+#endif
- return 1;
+ free(realm_config);
+ realm_config = NULL;
}
+
+#ifdef WITH_PROXY
+static CONF_PARSER limit_config[] = {
+ { "max_connections", PW_TYPE_INTEGER,
+ offsetof(home_server, max_connections), NULL, "16" },
+
+ { "max_requests", PW_TYPE_INTEGER,
+ offsetof(home_server,max_requests), NULL, "0" },
+
+ { "lifetime", PW_TYPE_INTEGER,
+ offsetof(home_server,lifetime), NULL, "0" },
+
+ { "idle_timeout", PW_TYPE_INTEGER,
+ offsetof(home_server,idle_timeout), NULL, "0" },
+
+ { NULL, -1, 0, NULL, NULL } /* end the list */
+};
+
static struct in_addr hs_ip4addr;
static struct in6_addr hs_ip6addr;
+static char *hs_srcipaddr = NULL;
static char *hs_type = NULL;
static char *hs_check = NULL;
+static char *hs_virtual_server = NULL;
+#ifdef WITH_TCP
+static char *hs_proto = NULL;
+#endif
static CONF_PARSER home_server_config[] = {
{ "ipaddr", PW_TYPE_IPADDR,
0, &hs_ip4addr, NULL },
{ "ipv6addr", PW_TYPE_IPV6ADDR,
0, &hs_ip6addr, NULL },
+ { "virtual_server", PW_TYPE_STRING_PTR,
+ 0, &hs_virtual_server, NULL },
- { "hostname", PW_TYPE_STRING_PTR,
- offsetof(home_server,hostname), NULL, NULL},
{ "port", PW_TYPE_INTEGER,
offsetof(home_server,port), NULL, "0" },
{ "type", PW_TYPE_STRING_PTR,
0, &hs_type, NULL },
+#ifdef WITH_TCP
+ { "proto", PW_TYPE_STRING_PTR,
+ 0, &hs_proto, NULL },
+#endif
+
{ "secret", PW_TYPE_STRING_PTR,
offsetof(home_server,secret), NULL, NULL},
+ { "src_ipaddr", PW_TYPE_STRING_PTR,
+ 0, &hs_srcipaddr, NULL },
+
{ "response_window", PW_TYPE_INTEGER,
offsetof(home_server,response_window), NULL, "30" },
+ { "no_response_fail", PW_TYPE_BOOLEAN,
+ offsetof(home_server,no_response_fail), NULL, NULL },
{ "max_outstanding", PW_TYPE_INTEGER,
offsetof(home_server,max_outstanding), NULL, "65536" },
+ { "require_message_authenticator", PW_TYPE_BOOLEAN,
+ offsetof(home_server, message_authenticator), 0, NULL },
{ "zombie_period", PW_TYPE_INTEGER,
offsetof(home_server,zombie_period), NULL, "40" },
- { "ping_check", PW_TYPE_STRING_PTR,
+ { "status_check", PW_TYPE_STRING_PTR,
0, &hs_check, "none" },
+ { "ping_check", PW_TYPE_STRING_PTR,
+ 0, &hs_check, NULL },
{ "ping_interval", PW_TYPE_INTEGER,
offsetof(home_server,ping_interval), NULL, "30" },
+ { "check_interval", PW_TYPE_INTEGER,
+ offsetof(home_server,ping_interval), NULL, "30" },
+ { "num_answers_to_alive", PW_TYPE_INTEGER,
+ offsetof(home_server,num_pings_to_alive), NULL, "3" },
{ "num_pings_to_alive", PW_TYPE_INTEGER,
offsetof(home_server,num_pings_to_alive), NULL, "3" },
{ "revive_interval", PW_TYPE_INTEGER,
offsetof(home_server,revive_interval), NULL, "300" },
+ { "status_check_timeout", PW_TYPE_INTEGER,
+ offsetof(home_server,ping_timeout), NULL, "4" },
{ "username", PW_TYPE_STRING_PTR,
offsetof(home_server,ping_user_name), NULL, NULL},
{ "password", PW_TYPE_STRING_PTR,
offsetof(home_server,ping_user_password), NULL, NULL},
-
- { NULL, -1, 0, NULL, NULL } /* end the list */
+#ifdef WITH_STATS
+ { "historic_average_window", PW_TYPE_INTEGER,
+ offsetof(home_server,ema.window), NULL, NULL },
+#endif
+
+#ifdef WITH_COA
+ { "irt", PW_TYPE_INTEGER,
+ offsetof(home_server, coa_irt), 0, Stringify(2) },
+ { "mrt", PW_TYPE_INTEGER,
+ offsetof(home_server, coa_mrt), 0, Stringify(16) },
+ { "mrc", PW_TYPE_INTEGER,
+ offsetof(home_server, coa_mrc), 0, Stringify(5) },
+ { "mrd", PW_TYPE_INTEGER,
+ offsetof(home_server, coa_mrd), 0, Stringify(30) },
+#endif
+
+ { "limit", PW_TYPE_SUBSECTION, 0, NULL, (const void *) limit_config },
+
+ { NULL, -1, 0, NULL, NULL } /* end the list */
};
-static int home_server_add(const char *filename, CONF_SECTION *cs)
+static void null_free(UNUSED void *data)
+{
+}
+
+static int home_server_add(realm_config_t *rc, CONF_SECTION *cs, int pool_type)
{
const char *name2;
home_server *home;
+ int dual = FALSE;
+ CONF_PAIR *cp;
+
+ free(hs_virtual_server); /* used only for printing during parsing */
+ hs_virtual_server = NULL;
name2 = cf_section_name1(cs);
if (!name2 || (strcasecmp(name2, "home_server") != 0)) {
- radlog(L_ERR, "%s[%d]: Section is not a home_server.",
- filename, cf_section_lineno(cs));
+ cf_log_err(cf_sectiontoitem(cs),
+ "Section is not a home_server.");
return 0;
}
name2 = cf_section_name2(cs);
if (!name2) {
- radlog(L_ERR, "%s[%d]: Home server section is missing a name.",
- filename, cf_section_lineno(cs));
+ cf_log_err(cf_sectiontoitem(cs),
+ "Home server section is missing a name.");
return 0;
}
memset(home, 0, sizeof(*home));
home->name = name2;
-
+ home->cs = cs;
+
+ /*
+ * For zombie period calculations. We want to count
+ * zombies from the time when the server starts, instead
+ * of from 1970.
+ */
+ home->last_packet = time(NULL);
+
+ /*
+ * Authentication servers have a default "no_response_fail = 0".
+ * Accounting servers have a default "no_response_fail = 1".
+ *
+ * This is because authentication packets are retried, so
+ * they can fail over to another home server. Accounting
+ * packets are not retried, so they cannot fail over, and
+ * instead should be rejected immediately.
+ */
+ home->no_response_fail = 2;
+
memset(&hs_ip4addr, 0, sizeof(hs_ip4addr));
memset(&hs_ip6addr, 0, sizeof(hs_ip6addr));
- cf_section_parse(cs, home, home_server_config);
-
- if (!home->hostname && (htonl(hs_ip4addr.s_addr) == INADDR_NONE) &&
- IN6_IS_ADDR_UNSPECIFIED(&hs_ip6addr)) {
- radlog(L_ERR, "%s[%d]: No hostname, IPv4 address, or IPv6 address defined for home server %s.",
- filename, cf_section_lineno(cs), name2);
- free(home);
- free(hs_type);
- hs_type = NULL;
- free(hs_check);
- hs_check = NULL;
- return 0;
+ if (cf_section_parse(cs, home, home_server_config) < 0) {
+ goto error;
}
/*
- * FIXME: Parse home->hostname!
- *
- * Right now, only ipaddr && ip6addr are used.
- * The old-style parsing still allows hostnames.
+ * Figure out which one to use.
*/
- if (htonl(hs_ip4addr.s_addr) != INADDR_NONE) {
+ if (cf_pair_find(cs, "ipaddr")) {
home->ipaddr.af = AF_INET;
home->ipaddr.ipaddr.ip4addr = hs_ip4addr;
- } else if (!IN6_IS_ADDR_UNSPECIFIED(&hs_ip6addr)) {
+ } else if (cf_pair_find(cs, "ipv6addr")) {
home->ipaddr.af = AF_INET6;
home->ipaddr.ipaddr.ip6addr = hs_ip6addr;
+ } else if ((cp = cf_pair_find(cs, "virtual_server")) != NULL) {
+ home->ipaddr.af = AF_UNSPEC;
+ home->server = cf_pair_value(cp);
+ if (!home->server) {
+ cf_log_err(cf_sectiontoitem(cs),
+ "Invalid value for virtual_server");
+ goto error;
+ }
+
+ if (!cf_section_sub_find_name2(rc->cs, "server", home->server)) {
+
+ cf_log_err(cf_sectiontoitem(cs),
+ "No such server %s", home->server);
+ goto error;
+ }
+
+ /*
+ * When CoA is used, the user has to specify the type
+ * of the home server, even when they point to
+ * virtual servers.
+ */
+ home->secret = strdup("");
+ goto skip_port;
+
} else {
- radlog(L_ERR, "%s[%d]: FIXME: parse hostname for home server %s.",
- filename, cf_section_lineno(cs), name2);
+ cf_log_err(cf_sectiontoitem(cs),
+ "No ipaddr, ipv6addr, or virtual_server defined for home server \"%s\".",
+ name2);
+ error:
free(home);
free(hs_type);
hs_type = NULL;
free(hs_check);
hs_check = NULL;
+ free(hs_srcipaddr);
+ hs_srcipaddr = NULL;
+#ifdef WITH_TCP
+ free(hs_proto);
+ hs_proto = NULL;
+#endif
return 0;
}
if (!home->port || (home->port > 65535)) {
- radlog(L_ERR, "%s[%d]: No port, or invalid port defined for home server %s.",
- filename, cf_section_lineno(cs), name2);
- free(home);
- free(hs_type);
- hs_type = NULL;
- free(hs_check);
- hs_check = NULL;
- return 0;
+ cf_log_err(cf_sectiontoitem(cs),
+ "No port, or invalid port defined for home server %s.",
+ name2);
+ goto error;
}
if (0) {
- radlog(L_ERR, "%s[%d]: Fatal error! Home server %s is ourselves!",
- filename, cf_section_lineno(cs), name2);
- free(home);
- free(hs_type);
- hs_type = NULL;
- free(hs_check);
- hs_check = NULL;
- return 0;
+ cf_log_err(cf_sectiontoitem(cs),
+ "Fatal error! Home server %s is ourselves!",
+ name2);
+ goto error;
+ }
+
+ if (!home->secret) {
+ cf_log_err(cf_sectiontoitem(cs),
+ "No shared secret defined for home server %s.",
+ name2);
+ goto error;
}
+ /*
+ * Use a reasonable default.
+ */
+ skip_port:
+ if (!hs_type) hs_type = strdup("auth+acct");
+
if (strcasecmp(hs_type, "auth") == 0) {
home->type = HOME_TYPE_AUTH;
+ if (home->no_response_fail == 2) home->no_response_fail = 0;
+ if (pool_type != home->type) {
+ mismatch:
+ cf_log_err(cf_sectiontoitem(cs),
+ "Home server %s of unexpected type \"%s\"",
+ name2, hs_type);
+ goto error;
+ }
} else if (strcasecmp(hs_type, "acct") == 0) {
home->type = HOME_TYPE_ACCT;
+ if (home->no_response_fail == 2) home->no_response_fail = 1;
+ if (pool_type != home->type) goto mismatch;
+
+ } else if (strcasecmp(hs_type, "auth+acct") == 0) {
+ home->type = HOME_TYPE_AUTH;
+ dual = TRUE;
+
+#ifdef WITH_COA
+ } else if (strcasecmp(hs_type, "coa") == 0) {
+ home->type = HOME_TYPE_COA;
+ dual = FALSE;
+
+ if (pool_type != home->type) goto mismatch;
+
+ if (home->server != NULL) {
+ cf_log_err(cf_sectiontoitem(cs),
+ "Home servers of type \"coa\" cannot point to a virtual server");
+ goto error;
+ }
+#endif
} else {
- radlog(L_ERR, "%s[%d]: Invalid type \"%s\" for home server %s.",
- filename, cf_section_lineno(cs), hs_type, name2);
- free(home);
- free(hs_type);
- hs_type = NULL;
- free(hs_check);
- hs_check = NULL;
- return 0;
+ cf_log_err(cf_sectiontoitem(cs),
+ "Invalid type \"%s\" for home server %s.",
+ hs_type, name2);
+ goto error;
}
free(hs_type);
hs_type = NULL;
- if (!home->secret) {
- radlog(L_ERR, "%s[%d]: No shared secret defined for home server %s.",
- filename, cf_section_lineno(cs), name2);
- free(home);
- return 0;
- }
-
- if (strcasecmp(hs_check, "none") == 0) {
+ if (!hs_check || (strcasecmp(hs_check, "none") == 0)) {
home->ping_check = HOME_PING_CHECK_NONE;
} else if (strcasecmp(hs_check, "status-server") == 0) {
home->ping_check = HOME_PING_CHECK_REQUEST;
} else {
- radlog(L_ERR, "%s[%d]: Invalid ping_check \"%s\" for home server %s.",
- filename, cf_section_lineno(cs), hs_check, name2);
- free(home);
- free(hs_check);
- hs_check = NULL;
- return 0;
+ cf_log_err(cf_sectiontoitem(cs),
+ "Invalid ping_check \"%s\" for home server %s.",
+ hs_check, name2);
+ goto error;
}
free(hs_check);
hs_check = NULL;
if ((home->ping_check != HOME_PING_CHECK_NONE) &&
(home->ping_check != HOME_PING_CHECK_STATUS_SERVER)) {
if (!home->ping_user_name) {
- radlog(L_INFO, "%s[%d]: You must supply a user name to enable ping checks",
- filename, cf_section_lineno(cs));
- free(home);
- return 0;
+ cf_log_err(cf_sectiontoitem(cs), "You must supply a user name to enable ping checks");
+ goto error;
}
- if ((home->type == HOME_TYPE_AUTH) &&
- !home->ping_user_password) {
- radlog(L_INFO, "%s[%d]: You must supply a password to enable ping checks",
- filename, cf_section_lineno(cs));
- free(home);
- return 0;
+ if ((home->type == HOME_TYPE_AUTH) &&
+ !home->ping_user_password) {
+ cf_log_err(cf_sectiontoitem(cs), "You must supply a password to enable ping checks");
+ goto error;
}
}
- if (rbtree_finddata(home_servers_byaddr, home)) {
- radlog(L_INFO, "%s[%d]: Ignoring duplicate home server %s.",
- filename, cf_section_lineno(cs), name2);
- return 1;
+ home->proto = IPPROTO_UDP;
+#ifdef WITH_TCP
+ if (hs_proto) {
+ if (strcmp(hs_proto, "udp") == 0) {
+ free(hs_proto);
+ hs_proto = NULL;
+
+ } else if (strcmp(hs_proto, "tcp") == 0) {
+ free(hs_proto);
+ hs_proto = NULL;
+ home->proto = IPPROTO_TCP;
+
+ } else {
+ cf_log_err(cf_sectiontoitem(cs),
+ "Unknown proto \"%s\".", hs_proto);
+ goto error;
+ }
+ }
+#endif
+
+ if (!home->server &&
+ rbtree_finddata(home_servers_byaddr, home)) {
+ cf_log_err(cf_sectiontoitem(cs), "Duplicate home server");
+ goto error;
+ }
+
+ /*
+ * If the home is a virtual server, don't look up source IP.
+ */
+ if (!home->server) {
+ rad_assert(home->ipaddr.af != AF_UNSPEC);
+
+ /*
+ * Otherwise look up the source IP using the same
+ * address family as the destination IP.
+ */
+ if (hs_srcipaddr) {
+ if (ip_hton(hs_srcipaddr, home->ipaddr.af, &home->src_ipaddr) < 0) {
+ cf_log_err(cf_sectiontoitem(cs), "Failed parsing src_ipaddr");
+ goto error;
+ }
+
+ } else {
+ /*
+ * Source isn't specified: Source is
+ * the correct address family, but all zeros.
+ */
+ home->src_ipaddr.af = home->ipaddr.af;
+ }
}
+ free(hs_srcipaddr);
+ hs_srcipaddr = NULL;
+
if (!rbtree_insert(home_servers_byname, home)) {
- radlog(L_ERR, "%s[%d]: Internal error adding home server %s.",
- filename, cf_section_lineno(cs), name2);
- free(home);
- return 0;
+ cf_log_err(cf_sectiontoitem(cs),
+ "Internal error %d adding home server %s.",
+ __LINE__, name2);
+ goto error;
}
- if (!rbtree_insert(home_servers_byaddr, home)) {
+ if (!home->server &&
+ !rbtree_insert(home_servers_byaddr, home)) {
rbtree_deletebydata(home_servers_byname, home);
- radlog(L_ERR, "%s[%d]: Internal error adding home server %s.",
- filename, cf_section_lineno(cs), name2);
- free(home);
- return 0;
+ cf_log_err(cf_sectiontoitem(cs),
+ "Internal error %d adding home server %s.",
+ __LINE__, name2);
+ goto error;
}
- if (home->response_window < 5) home->response_window = 5;
- if (home->response_window > 60) home->response_window = 60;
+#ifdef WITH_STATS
+ home->number = home_server_max_number++;
+ if (!rbtree_insert(home_servers_bynumber, home)) {
+ rbtree_deletebydata(home_servers_byname, home);
+ if (home->ipaddr.af != AF_UNSPEC) {
+ rbtree_deletebydata(home_servers_byname, home);
+ }
+ cf_log_err(cf_sectiontoitem(cs),
+ "Internal error %d adding home server %s.",
+ __LINE__, name2);
+ goto error;
+ }
+#endif
if (home->max_outstanding < 8) home->max_outstanding = 8;
if (home->max_outstanding > 65536*16) home->max_outstanding = 65536*16;
if (home->ping_interval < 6) home->ping_interval = 6;
if (home->ping_interval > 120) home->ping_interval = 120;
- if (home->zombie_period < 20) home->zombie_period = 20;
+ if (home->response_window < 1) home->response_window = 1;
+ if (home->response_window > 60) home->response_window = 60;
+
+ if (home->zombie_period < 1) home->zombie_period = 1;
if (home->zombie_period > 120) home->zombie_period = 120;
if (home->zombie_period < home->response_window) {
if (home->num_pings_to_alive < 3) home->num_pings_to_alive = 3;
if (home->num_pings_to_alive > 10) home->num_pings_to_alive = 10;
+ if (home->ping_timeout < 3) home->ping_timeout = 3;
+ if (home->ping_timeout > 10) home->ping_timeout = 10;
+
if (home->revive_interval < 60) home->revive_interval = 60;
if (home->revive_interval > 3600) home->revive_interval = 3600;
+#ifdef WITH_COA
+ if (home->coa_irt < 1) home->coa_irt = 1;
+ if (home->coa_irt > 5) home->coa_irt = 5;
+
+ if (home->coa_mrc < 0) home->coa_mrc = 0;
+ if (home->coa_mrc > 20 ) home->coa_mrc = 20;
+
+ if (home->coa_mrt < 0) home->coa_mrt = 0;
+ if (home->coa_mrt > 30 ) home->coa_mrt = 30;
+
+ if (home->coa_mrd < 5) home->coa_mrd = 5;
+ if (home->coa_mrd > 60 ) home->coa_mrd = 60;
+#endif
+
+ if (home->max_connections > 1024) home->max_connections = 1024;
+
+#ifdef WITH_TCP
+ /*
+ * UDP sockets can't be connection limited.
+ */
+ if (home->proto != IPPROTO_TCP) home->max_connections = 0;
+#endif
+
+ if ((home->idle_timeout > 0) && (home->idle_timeout < 5))
+ home->idle_timeout = 5;
+ if ((home->lifetime > 0) && (home->lifetime < 5))
+ home->lifetime = 5;
+ if ((home->lifetime > 0) && (home->idle_timeout > home->lifetime))
+ home->idle_timeout = 0;
+
+ if (dual) {
+ home_server *home2 = rad_malloc(sizeof(*home2));
+
+ memcpy(home2, home, sizeof(*home2));
+
+ home2->type = HOME_TYPE_ACCT;
+ home2->port++;
+ home2->ping_user_password = NULL;
+ home2->cs = cs;
+
+ if (home->no_response_fail == 2) home->no_response_fail = 0;
+ if (home2->no_response_fail == 2) home2->no_response_fail = 1;
+
+ if (!rbtree_insert(home_servers_byname, home2)) {
+ cf_log_err(cf_sectiontoitem(cs),
+ "Internal error %d adding home server %s.",
+ __LINE__, name2);
+ free(home2);
+ return 0;
+ }
+
+ if (!home->server &&
+ !rbtree_insert(home_servers_byaddr, home2)) {
+ rbtree_deletebydata(home_servers_byname, home2);
+ cf_log_err(cf_sectiontoitem(cs),
+ "Internal error %d adding home server %s.",
+ __LINE__, name2);
+ free(home2);
+ return 0;
+ }
+
+#ifdef WITH_STATS
+ home2->number = home_server_max_number++;
+ if (!rbtree_insert(home_servers_bynumber, home2)) {
+ rbtree_deletebydata(home_servers_byname, home2);
+ if (!home2->server) {
+ rbtree_deletebydata(home_servers_byname, home2);
+ }
+ cf_log_err(cf_sectiontoitem(cs),
+ "Internal error %d adding home server %s.",
+ __LINE__, name2);
+ free(home2);
+ return 0;
+ }
+#endif
+ }
+
+ /*
+ * Mark it as already processed
+ */
+ cf_data_add(cs, "home_server", null_free, null_free);
+
return 1;
}
-static int server_pool_add(const char *filename, CONF_SECTION *cs)
+static home_pool_t *server_pool_alloc(const char *name, home_pool_type_t type,
+ int server_type, int num_home_servers)
{
- const char *name2;
home_pool_t *pool;
- const char *value;
- CONF_PAIR *cp;
- int num_home_servers;
- name2 = cf_section_name1(cs);
- if (!name2 || (strcasecmp(name2, "server_pool") != 0)) {
- radlog(L_ERR, "%s[%d]: Section is not a server_pool.",
- filename, cf_section_lineno(cs));
- return 0;
- }
+ pool = rad_malloc(sizeof(*pool) + (sizeof(pool->servers[0]) *
+ num_home_servers));
+ if (!pool) return NULL; /* just for pairanoia */
+
+ memset(pool, 0, sizeof(*pool) + (sizeof(pool->servers[0]) *
+ num_home_servers));
- name2 = cf_section_name2(cs);
- if (!name2) {
- radlog(L_ERR, "%s[%d]: Server pool section is missing a name.",
- filename, cf_section_lineno(cs));
+ pool->name = name;
+ pool->type = type;
+ pool->server_type = server_type;
+ pool->num_home_servers = num_home_servers;
+
+ return pool;
+}
+
+static int pool_check_home_server(realm_config_t *rc, CONF_PAIR *cp,
+ const char *name, int server_type,
+ home_server **phome)
+{
+ home_server myhome, *home;
+ CONF_SECTION *server_cs;
+
+ if (!name) {
+ cf_log_err(cf_pairtoitem(cp),
+ "No value given for home_server.");
return 0;
}
+ myhome.name = name;
+ myhome.type = server_type;
+ home = rbtree_finddata(home_servers_byname, &myhome);
+ if (home) {
+ *phome = home;
+ return 1;
+ }
+
+ server_cs = cf_section_sub_find_name2(rc->cs, "home_server", name);
+ if (!server_cs) {
+ cf_log_err(cf_pairtoitem(cp),
+ "Unknown home_server \"%s\".", name);
+ return 0;
+ }
+
+ if (!home_server_add(rc, server_cs, server_type)) {
+ return 0;
+ }
+
+ home = rbtree_finddata(home_servers_byname, &myhome);
+ if (!home) {
+ cf_log_err(cf_pairtoitem(cp),
+ "Internal error %d adding home server \"%s\".",
+ __LINE__, name);
+ return 0;
+ }
+
+ *phome = home;
+ return 1;
+}
+
+
+static int server_pool_add(realm_config_t *rc,
+ CONF_SECTION *cs, int server_type, int do_print)
+{
+ const char *name2;
+ home_pool_t *pool = NULL;
+ const char *value;
+ CONF_PAIR *cp;
+ int num_home_servers;
+ home_server *home;
+
+ name2 = cf_section_name1(cs);
+ if (!name2 || ((strcasecmp(name2, "server_pool") != 0) &&
+ (strcasecmp(name2, "home_server_pool") != 0))) {
+ cf_log_err(cf_sectiontoitem(cs),
+ "Section is not a home_server_pool.");
+ return 0;
+ }
+
+ name2 = cf_section_name2(cs);
+ if (!name2) {
+ cf_log_err(cf_sectiontoitem(cs),
+ "Server pool section is missing a name.");
+ return 0;
+ }
+
+ /*
+ * Count the home servers and initalize them.
+ */
num_home_servers = 0;
for (cp = cf_pair_find(cs, "home_server");
cp != NULL;
cp = cf_pair_find_next(cs, cp, "home_server")) {
num_home_servers++;
+
+ if (!pool_check_home_server(rc, cp, cf_pair_value(cp),
+ server_type, &home)) {
+ return 0;
+ }
}
if (num_home_servers == 0) {
- radlog(L_ERR, "%s[%d]: No home servers defined in pool %s",
- filename, cf_section_lineno(cs), name2);
- return 0;
+ cf_log_err(cf_sectiontoitem(cs),
+ "No home servers defined in pool %s",
+ name2);
+ goto error;
}
- pool = rad_malloc(sizeof(*pool) + num_home_servers * sizeof(pool->servers[0]));
- memset(pool, 0, sizeof(*pool) + num_home_servers * sizeof(pool->servers[0]));
+ pool = server_pool_alloc(name2, HOME_POOL_FAIL_OVER, server_type,
+ num_home_servers);
+ pool->cs = cs;
- pool->type = HOME_POOL_FAIL_OVER;
- pool->name = name2;
+
+ /*
+ * Fallback servers must be defined, and must be
+ * virtual servers.
+ */
+ cp = cf_pair_find(cs, "fallback");
+ if (cp) {
+#ifdef WITH_COA
+ if (server_type == HOME_TYPE_COA) {
+ cf_log_err(cf_sectiontoitem(cs), "Home server pools of type \"coa\" cannot have a fallback virtual server.");
+ goto error;
+ }
+#endif
+
+ if (!pool_check_home_server(rc, cp, cf_pair_value(cp),
+ server_type, &pool->fallback)) {
+
+ goto error;
+ }
+
+ if (!pool->fallback->server) {
+ cf_log_err(cf_sectiontoitem(cs), "Fallback home_server %s does NOT contain a virtual_server directive.", pool->fallback->name);
+ goto error;
+ }
+ }
+
+ if (do_print) cf_log_info(cs, " home_server_pool %s {", name2);
cp = cf_pair_find(cs, "type");
if (cp) {
+ static FR_NAME_NUMBER pool_types[] = {
+ { "load-balance", HOME_POOL_LOAD_BALANCE },
+ { "fail-over", HOME_POOL_FAIL_OVER },
+ { "round_robin", HOME_POOL_LOAD_BALANCE },
+ { "fail_over", HOME_POOL_FAIL_OVER },
+ { "client-balance", HOME_POOL_CLIENT_BALANCE },
+ { "client-port-balance", HOME_POOL_CLIENT_PORT_BALANCE },
+ { "keyed-balance", HOME_POOL_KEYED_BALANCE },
+ { NULL, 0 }
+ };
+
value = cf_pair_value(cp);
if (!value) {
- radlog(L_ERR, "%s[%d]: No value given for type.",
- filename, cf_pair_lineno(cp));
- free(pool);
- return 0;
+ cf_log_err(cf_pairtoitem(cp),
+ "No value given for type.");
+ goto error;
}
- if (strcmp(value, "load-balance") == 0) {
- pool->type = HOME_POOL_LOAD_BALANCE;
+ pool->type = fr_str2int(pool_types, value, 0);
+ if (!pool->type) {
+ cf_log_err(cf_pairtoitem(cp),
+ "Unknown type \"%s\".",
+ value);
+ goto error;
+ }
- } else if (strcmp(value, "fail-over") == 0) {
- pool->type = HOME_POOL_FAIL_OVER;
+ if (do_print) cf_log_info(cs, "\ttype = %s", value);
+ }
- } else {
- radlog(L_ERR, "%s[%d]: Unknown type \"%s\".",
- filename, cf_pair_lineno(cp), value);
- free(pool);
- return 0;
+ cp = cf_pair_find(cs, "virtual_server");
+ if (cp) {
+ pool->virtual_server = cf_pair_value(cp);
+ if (!pool->virtual_server) {
+ cf_log_err(cf_pairtoitem(cp), "No value given for virtual_server");
+ goto error;
+ }
+
+ if (do_print) {
+ cf_log_info(cs, "\tvirtual_server = %s", pool->virtual_server);
+ }
+
+ if (!cf_section_sub_find_name2(rc->cs, "server",
+ pool->virtual_server)) {
+ cf_log_err(cf_pairtoitem(cp), "No such server %s",
+ pool->virtual_server);
+ goto error;
}
- DEBUG2(" server_pool %s: type = %s", name2, value);
}
+ num_home_servers = 0;
for (cp = cf_pair_find(cs, "home_server");
cp != NULL;
cp = cf_pair_find_next(cs, cp, "home_server")) {
- home_server myhome, *home;
+ home_server myhome;
value = cf_pair_value(cp);
- if (!value) {
- radlog(L_ERR, "%s[%d]: No value given for home_server.",
- filename, cf_pair_lineno(cp));
- free(pool);
- return 0;
- }
+ memset(&myhome, 0, sizeof(&myhome));
myhome.name = value;
+ myhome.type = server_type;
home = rbtree_finddata(home_servers_byname, &myhome);
if (!home) {
- CONF_SECTION *server_cs;
-
- server_cs = cf_section_sub_find_name2(NULL,
- "home_server",
- value);
- if (!server_cs) {
- radlog(L_ERR, "%s[%d]: Unknown home_server \"%s\".",
- filename, cf_pair_lineno(cp), value);
- free(pool);
- return 0;
- }
-
- if (!home_server_add(filename, server_cs)) {
- free(pool);
- return 0;
- }
-
- home = rbtree_finddata(home_servers_byname, &myhome);
- if (!home) {
- rad_assert("Internal sanity check failed");
- return 0;
- }
- }
-
- if (!pool->server_type) {
- rad_assert(home->type != 0);
- pool->server_type = home->type;
-
- } else if (pool->server_type != home->type) {
- radlog(L_ERR, "%s[%d]: Home server \"%s\" is not of the same type as previous servers in server pool %s",
- filename, cf_pair_lineno(cp), value, pool->name);
- free(pool);
- return 0;
+ DEBUG2("Internal sanity check failed");
+ goto error;
}
if (0) {
continue;
}
- DEBUG2(" server_pool %s: home_server = %s", name2, home->name);
- pool->servers[pool->num_home_servers] = home;
- pool->num_home_servers++;
-
+ if (do_print) cf_log_info(cs, "\thome_server = %s", home->name);
+ pool->servers[num_home_servers++] = home;
} /* loop over home_server's */
+ if (pool->fallback && do_print) {
+ cf_log_info(cs, "\tfallback = %s", pool->fallback->name);
+ }
+
if (!rbtree_insert(home_pools_byname, pool)) {
rad_assert("Internal sanity check failed");
- return 0;
+ goto error;
}
+ if (do_print) cf_log_info(cs, " }");
+
+ cf_data_add(cs, "home_server_pool", pool, free);
+
rad_assert(pool->server_type != 0);
-
+
return 1;
-}
+ error:
+ if (do_print) cf_log_info(cs, " }");
+ free(pool);
+ return 0;
+}
+#endif
-static int old_server_add(const char *filename, int lineno,
+static int old_server_add(realm_config_t *rc, CONF_SECTION *cs,
+ const char *realm,
const char *name, const char *secret,
home_pool_type_t ldflag, home_pool_t **pool_p,
- int type)
+ int type, const char *server)
{
+#ifdef WITH_PROXY
int i, insert_point, num_home_servers;
home_server myhome, *home;
home_pool_t mypool, *pool;
- CONF_SECTION *cs;
+ CONF_SECTION *subcs;
+#else
+ rc = rc; /* -Wunused */
+ realm = realm;
+ secret = secret;
+ ldflag = ldflag;
+ type = type;
+ server = server;
+#endif
/*
* LOCAL realms get sanity checked, and nothing else happens.
*/
if (strcmp(name, "LOCAL") == 0) {
if (*pool_p) {
- radlog(L_ERR, "%s[%d]: Realm \"%s\" cannot be both LOCAL and remote", filename, lineno, name);
+ cf_log_err(cf_sectiontoitem(cs), "Realm \"%s\" cannot be both LOCAL and remote", name);
return 0;
}
return 1;
}
- mypool.name = name;
+#ifndef WITH_PROXY
+ return 0; /* Not proxying. Can't do non-LOCAL realms */
+
+#else
+ mypool.name = realm;
+ mypool.server_type = type;
pool = rbtree_finddata(home_pools_byname, &mypool);
if (pool) {
if (pool->type != ldflag) {
- radlog(L_ERR, "%s[%d]: Inconsistent ldflag for server pool \"%s\"", filename, lineno, name);
+ cf_log_err(cf_sectiontoitem(cs), "Inconsistent ldflag for server pool \"%s\"", name);
return 0;
}
if (pool->server_type != type) {
- radlog(L_ERR, "%s[%d]: Inconsistent home server type for server pool \"%s\"", filename, lineno, name);
+ cf_log_err(cf_sectiontoitem(cs), "Inconsistent home server type for server pool \"%s\"", name);
return 0;
}
}
myhome.name = name;
+ myhome.type = type;
home = rbtree_finddata(home_servers_byname, &myhome);
if (home) {
- if (strcmp(home->secret, secret) != 0) {
- radlog(L_ERR, "%s[%d]: Inconsistent shared secret for home server \"%s\"", filename, lineno, name);
+ if (secret && (strcmp(home->secret, secret) != 0)) {
+ cf_log_err(cf_sectiontoitem(cs), "Inconsistent shared secret for home server \"%s\"", name);
return 0;
}
if (home->type != type) {
- radlog(L_ERR, "%s[%d]: Inconsistent type for home server \"%s\"", filename, lineno, name);
+ cf_log_err(cf_sectiontoitem(cs), "Inconsistent type for home server \"%s\"", name);
return 0;
}
-
+
/*
* See if the home server is already listed
* in the pool. If so, do nothing else.
}
if (insert_point < 0) {
- radlog(L_ERR, "%s[%d]: No room in pool to add home server \"%s\". Please update the realm configuration to use the new-style home servers and server pools.", filename, lineno, name);
+ cf_log_err(cf_sectiontoitem(cs), "No room in pool to add home server \"%s\". Please update the realm configuration to use the new-style home servers and server pools.", name);
return 0;
}
}
/*
* No home server, allocate one.
*/
- if (!home) {
+ if (!home) {
const char *p;
char *q;
home->hostname = name;
home->type = type;
home->secret = secret;
+ home->cs = cs;
+ home->proto = IPPROTO_UDP;
p = strchr(name, ':');
if (!p) {
q = NULL;
} else if (p == name) {
- radlog(L_ERR, "%s[%d]: Invalid hostname %s.",
- filename, lineno, name);
+ cf_log_err(cf_sectiontoitem(cs),
+ "Invalid hostname %s.",
+ name);
free(home);
return 0;
} else {
home->port = atoi(p + 1);
if ((home->port == 0) || (home->port > 65535)) {
- radlog(L_ERR, "%s[%d]: Invalid port %s.",
- filename, lineno, p + 1);
+ cf_log_err(cf_sectiontoitem(cs),
+ "Invalid port %s.",
+ p + 1);
free(home);
return 0;
}
p = q;
}
- if (ip_hton(p, AF_UNSPEC, &home->ipaddr) < 0) {
- radlog(L_ERR, "%s[%d]: Failed looking up hostname %s.",
- filename, lineno, p);
- free(home);
- free(q);
- return 0;
+ if (!server) {
+ if (ip_hton(p, AF_UNSPEC, &home->ipaddr) < 0) {
+ cf_log_err(cf_sectiontoitem(cs),
+ "Failed looking up hostname %s.",
+ p);
+ free(home);
+ free(q);
+ return 0;
+ }
+ home->src_ipaddr.af = home->ipaddr.af;
+ } else {
+ home->ipaddr.af = AF_UNSPEC;
+ home->server = server;
}
free(q);
* Use the old-style configuration.
*/
home->max_outstanding = 65535*16;
- home->zombie_period = mainconfig.proxy_retry_delay * mainconfig.proxy_retry_count;
+ home->zombie_period = rc->retry_delay * rc->retry_count;
if (home->zombie_period == 0) home->zombie_period =30;
home->response_window = home->zombie_period - 1;
home->ping_check = HOME_PING_CHECK_NONE;
- home->revive_interval = mainconfig.proxy_dead_time;
+ home->revive_interval = rc->dead_time;
if (rbtree_finddata(home_servers_byaddr, home)) {
- radlog(L_ERR, "%s[%d]: Home server %s has the same IP address as another home server.",
- filename, lineno, name);
+ cf_log_err(cf_sectiontoitem(cs), "Home server %s has the same IP address and/or port as another home server.", name);
free(home);
return 0;
}
if (!rbtree_insert(home_servers_byname, home)) {
- radlog(L_ERR, "%s[%d]: Internal error adding home server %s.",
- filename, lineno, name);
+ cf_log_err(cf_sectiontoitem(cs), "Internal error %d adding home server %s.", __LINE__, name);
free(home);
return 0;
}
-
+
if (!rbtree_insert(home_servers_byaddr, home)) {
rbtree_deletebydata(home_servers_byname, home);
- radlog(L_ERR, "%s[%d]: Internal error adding home server %s.",
- filename, lineno, name);
+ cf_log_err(cf_sectiontoitem(cs), "Internal error %d adding home server %s.", __LINE__, name);
+ free(home);
+ return 0;
+ }
+
+#ifdef WITH_STATS
+ home->number = home_server_max_number++;
+ if (!rbtree_insert(home_servers_bynumber, home)) {
+ rbtree_deletebydata(home_servers_byname, home);
+ if (home->ipaddr.af != AF_UNSPEC) {
+ rbtree_deletebydata(home_servers_byname, home);
+ }
+ cf_log_err(cf_sectiontoitem(cs),
+ "Internal error %d adding home server %s.",
+ __LINE__, name);
free(home);
return 0;
}
+#endif
}
/*
* Count the old-style realms of this name.
*/
num_home_servers = 0;
- for (cs = cf_section_sub_find_name2(mainconfig.config, "realm", name);
- cs != NULL;
- cs = cf_section_sub_find_name2(cs, "realm", name)) {
+ for (subcs = cf_section_find_next(cs, NULL, "realm");
+ subcs != NULL;
+ subcs = cf_section_find_next(cs, subcs, "realm")) {
+ const char *this = cf_section_name2(subcs);
+
+ if (!this || (strcmp(this, realm) != 0)) continue;
num_home_servers++;
}
+ if (num_home_servers == 0) {
+ cf_log_err(cf_sectiontoitem(cs), "Internal error counting pools for home server %s.", name);
+ free(home);
+ return 0;
+ }
- pool = rad_malloc(sizeof(*pool) + num_home_servers * sizeof(pool->servers[0]));
- memset(pool, 0, sizeof(*pool) + num_home_servers * sizeof(pool->servers[0]));
+ pool = server_pool_alloc(realm, ldflag, type, num_home_servers);
+ pool->cs = cs;
- pool->name = name;
- pool->type = ldflag;
- pool->server_type = type;
- pool->num_home_servers = num_home_servers;
pool->servers[0] = home;
if (!rbtree_insert(home_pools_byname, pool)) {
*pool_p = pool;
return 1;
+#endif
}
-static int old_realm_config(const char *filename, CONF_SECTION *cs, REALM *r)
+static int old_realm_config(realm_config_t *rc, CONF_SECTION *cs, REALM *r)
{
- char *host;
- const char *secret;
+ const char *host;
+ const char *secret = NULL;
home_pool_type_t ldflag;
+ CONF_PAIR *cp;
- secret = cf_section_value_find(cs, "secret");
-
- host = cf_section_value_find(cs, "ldflag");
- if (!host ||
- (strcasecmp(host, "fail_over") == 0)) {
- ldflag = HOME_POOL_FAIL_OVER;
- DEBUG2(" realm %s: ldflag = fail_over", r->name);
-
- } else if (strcasecmp(host, "round_robin") == 0) {
- ldflag = HOME_POOL_LOAD_BALANCE;
- DEBUG2(" realm %s: ldflag = round_robin", r->name);
+ cp = cf_pair_find(cs, "ldflag");
+ ldflag = HOME_POOL_FAIL_OVER;
+ if (cp) {
+ host = cf_pair_value(cp);
+ if (!host) {
+ cf_log_err(cf_pairtoitem(cp), "No value specified for ldflag");
+ return 0;
+ }
- } else {
- radlog(L_ERR, "%s[%d]: Unknown value \"%s\" for ldflag",
- filename, cf_section_lineno(cs), host);
- return 0;
- }
+ if (strcasecmp(host, "fail_over") == 0) {
+ cf_log_info(cs, "\tldflag = fail_over");
+
+ } else if (strcasecmp(host, "round_robin") == 0) {
+ ldflag = HOME_POOL_LOAD_BALANCE;
+ cf_log_info(cs, "\tldflag = round_robin");
+
+ } else {
+ cf_log_err(cf_sectiontoitem(cs), "Unknown value \"%s\" for ldflag", host);
+ return 0;
+ }
+ } /* else don't print it. */
/*
* Allow old-style if it doesn't exist, or if it exists and
* it's LOCAL.
*/
- if (((host = cf_section_value_find(cs, "authhost")) != NULL) &&
- (strcmp(host, "LOCAL") != 0)) {
- if (!secret) {
- radlog(L_ERR, "%s[%d]: No shared secret supplied for realm: %s",
- filename, cf_section_lineno(cs), r->name);
+ cp = cf_pair_find(cs, "authhost");
+ if (cp) {
+ host = cf_pair_value(cp);
+ if (!host) {
+ cf_log_err(cf_pairtoitem(cp), "No value specified for authhost");
+ return 0;
+ }
+
+ if (strcmp(host, "LOCAL") != 0) {
+ cp = cf_pair_find(cs, "secret");
+ if (!cp) {
+ cf_log_err(cf_sectiontoitem(cs), "No shared secret supplied for realm: %s", r->name);
+ return 0;
+ }
+
+ secret = cf_pair_value(cp);
+ if (!secret) {
+ cf_log_err(cf_pairtoitem(cp), "No value specified for secret");
+ return 0;
+ }
+ }
+
+ cf_log_info(cs, "\tauthhost = %s", host);
+
+ if (!old_server_add(rc, cs, r->name, host, secret, ldflag,
+ &r->auth_pool, HOME_TYPE_AUTH, NULL)) {
+ return 0;
+ }
+ }
+
+ cp = cf_pair_find(cs, "accthost");
+ if (cp) {
+ host = cf_pair_value(cp);
+ if (!host) {
+ cf_log_err(cf_pairtoitem(cp), "No value specified for accthost");
return 0;
}
- DEBUG2(" realm %s: authhost = %s", r->name, host);
+ /*
+ * Don't look for a secret again if it was found
+ * above.
+ */
+ if ((strcmp(host, "LOCAL") != 0) && !secret) {
+ cp = cf_pair_find(cs, "secret");
+ if (!cp) {
+ cf_log_err(cf_sectiontoitem(cs), "No shared secret supplied for realm: %s", r->name);
+ return 0;
+ }
+
+ secret = cf_pair_value(cp);
+ if (!secret) {
+ cf_log_err(cf_pairtoitem(cp), "No value specified for secret");
+ return 0;
+ }
+ }
+
+ cf_log_info(cs, "\taccthost = %s", host);
- if (!old_server_add(filename, cf_section_lineno(cs),
- host, secret, ldflag,
- &r->auth_pool, HOME_TYPE_AUTH)) {
+ if (!old_server_add(rc, cs, r->name, host, secret, ldflag,
+ &r->acct_pool, HOME_TYPE_ACCT, NULL)) {
return 0;
}
}
- if (((host = cf_section_value_find(cs, "accthost")) != NULL) &&
- (strcmp(host, "LOCAL") != 0)) {
- if (!secret) {
- radlog(L_ERR, "%s[%d]: No shared secret supplied for realm: %s",
- filename, cf_section_lineno(cs), r->name);
+ cp = cf_pair_find(cs, "virtual_server");
+ if (cp) {
+ host = cf_pair_value(cp);
+ if (!host) {
+ cf_log_err(cf_pairtoitem(cp), "No value specified for virtual_server");
return 0;
}
- DEBUG2(" realm %s: accthost = %s", r->name, host);
+ cf_log_info(cs, "\tvirtual_server = %s", host);
- if (!old_server_add(filename, cf_section_lineno(cs),
- host, secret, ldflag,
- &r->auth_pool, HOME_TYPE_ACCT)) {
+ if (!old_server_add(rc, cs, r->name, host, "", ldflag,
+ &r->auth_pool, HOME_TYPE_AUTH, host)) {
+ return 0;
+ }
+ if (!old_server_add(rc, cs, r->name, host, "", ldflag,
+ &r->acct_pool, HOME_TYPE_ACCT, host)) {
return 0;
}
}
- if (secret) DEBUG2(" realm %s: secret = %s", r->name, secret);
+ if (secret) cf_log_info(cs, "\tsecret = %s", secret);
return 1;
-
+
}
-static int add_pool_to_realm(const char *filename, int lineno,
+#ifdef WITH_PROXY
+static int add_pool_to_realm(realm_config_t *rc, CONF_SECTION *cs,
const char *name, home_pool_t **dest,
- int server_type)
+ int server_type, int do_print)
{
home_pool_t mypool, *pool;
mypool.name = name;
+ mypool.server_type = server_type;
+
pool = rbtree_finddata(home_pools_byname, &mypool);
if (!pool) {
CONF_SECTION *pool_cs;
- pool_cs = cf_section_sub_find_name2(NULL, "server_pool",
+ pool_cs = cf_section_sub_find_name2(rc->cs,
+ "home_server_pool",
name);
if (!pool_cs) {
- radlog(L_ERR, "%s[%d]: Failed to find server_pool \"%s\"",
- filename, lineno, name);
+ pool_cs = cf_section_sub_find_name2(rc->cs,
+ "server_pool",
+ name);
+ }
+ if (!pool_cs) {
+ cf_log_err(cf_sectiontoitem(cs), "Failed to find home_server_pool \"%s\"", name);
return 0;
}
- if (!server_pool_add(filename, pool_cs)) {
+ if (!server_pool_add(rc, pool_cs, server_type, do_print)) {
return 0;
}
-
+
pool = rbtree_finddata(home_pools_byname, &mypool);
if (!pool) {
- rad_assert("Internal sanity check failed");
+ radlog(L_ERR, "Internal sanity check failed in add_pool_to_realm");
return 0;
}
}
if (pool->server_type != server_type) {
- radlog(L_ERR, "%s[%d]: Incompatible server_pool \"%s\" (mixed auth_pool / acct_pool)",
- filename, lineno, name);
+ cf_log_err(cf_sectiontoitem(cs), "Incompatible home_server_pool \"%s\" (mixed auth_pool / acct_pool)", name);
return 0;
}
return 1;
}
+#endif
-int realm_add(const char *filename, CONF_SECTION *cs)
+
+static int realm_add(realm_config_t *rc, CONF_SECTION *cs)
{
const char *name2;
- char *pool = NULL;
- REALM *r;
+ REALM *r = NULL;
CONF_PAIR *cp;
+#ifdef WITH_PROXY
+ home_pool_t *auth_pool, *acct_pool;
+ const char *auth_pool_name, *acct_pool_name;
+#endif
name2 = cf_section_name1(cs);
if (!name2 || (strcasecmp(name2, "realm") != 0)) {
- radlog(L_ERR, "%s[%d]: Section is not a realm.",
- filename, cf_section_lineno(cs));
+ cf_log_err(cf_sectiontoitem(cs), "Section is not a realm.");
return 0;
}
name2 = cf_section_name2(cs);
if (!name2) {
- radlog(L_ERR, "%s[%d]: Realm section is missing the realm name.",
- filename, cf_section_lineno(cs));
+ cf_log_err(cf_sectiontoitem(cs), "Realm section is missing the realm name.");
return 0;
}
+#ifdef WITH_PROXY
+ auth_pool = acct_pool = NULL;
+ auth_pool_name = acct_pool_name = NULL;
+
/*
- * The realm MAY already exist if it's an old-style realm.
- * In that case, merge the old-style realm with this one.
+ * Prefer new configuration to old one.
*/
- r = realm_find(name2);
- if (r) {
- if (cf_pair_find(cs, "auth_pool") ||
- cf_pair_find(cs, "acct_pool")) {
- radlog(L_ERR, "%s[%d]: Duplicate realm \"%s\"",
- filename, cf_section_lineno(cs), name2);
+ cp = cf_pair_find(cs, "pool");
+ if (!cp) cp = cf_pair_find(cs, "home_server_pool");
+ if (cp) auth_pool_name = cf_pair_value(cp);
+ if (cp && auth_pool_name) {
+ acct_pool_name = auth_pool_name;
+ if (!add_pool_to_realm(rc, cs,
+ auth_pool_name, &auth_pool,
+ HOME_TYPE_AUTH, 1)) {
return 0;
}
-
- if (!old_realm_config(filename, cs, r)) {
+ if (!add_pool_to_realm(rc, cs,
+ auth_pool_name, &acct_pool,
+ HOME_TYPE_ACCT, 0)) {
return 0;
}
+ }
- return 1;
+ cp = cf_pair_find(cs, "auth_pool");
+ if (cp) auth_pool_name = cf_pair_value(cp);
+ if (cp && auth_pool_name) {
+ if (auth_pool) {
+ cf_log_err(cf_sectiontoitem(cs), "Cannot use \"pool\" and \"auth_pool\" at the same time.");
+ return 0;
+ }
+ if (!add_pool_to_realm(rc, cs,
+ auth_pool_name, &auth_pool,
+ HOME_TYPE_AUTH, 1)) {
+ return 0;
+ }
}
- r = rad_malloc(sizeof(*r));
- memset(r, 0, sizeof(*r));
+ cp = cf_pair_find(cs, "acct_pool");
+ if (cp) acct_pool_name = cf_pair_value(cp);
+ if (cp && acct_pool_name) {
+ int do_print = TRUE;
- r->name = name2;
+ if (acct_pool) {
+ cf_log_err(cf_sectiontoitem(cs), "Cannot use \"pool\" and \"acct_pool\" at the same time.");
+ return 0;
+ }
+
+ if (!auth_pool ||
+ (strcmp(auth_pool_name, acct_pool_name) != 0)) {
+ do_print = TRUE;
+ }
+
+ if (!add_pool_to_realm(rc, cs,
+ acct_pool_name, &acct_pool,
+ HOME_TYPE_ACCT, do_print)) {
+ return 0;
+ }
+ }
+#endif
+
+ cf_log_info(cs, " realm %s {", name2);
+#ifdef WITH_PROXY
/*
- * Prefer new configuration to old one.
+ * The realm MAY already exist if it's an old-style realm.
+ * In that case, merge the old-style realm with this one.
*/
- cp = cf_pair_find(cs, "auth_pool");
- if (cp) pool = cf_pair_value(cp);
- if (cp && pool) {
- if (!add_pool_to_realm(filename, cf_pair_lineno(cp),
- pool, &r->auth_pool, HOME_TYPE_AUTH)) {
- free(r);
- return 0;
+ r = realm_find2(name2);
+ if (r && (strcmp(r->name, name2) == 0)) {
+ if (cf_pair_find(cs, "auth_pool") ||
+ cf_pair_find(cs, "acct_pool")) {
+ cf_log_err(cf_sectiontoitem(cs), "Duplicate realm \"%s\"", name2);
+ goto error;
}
- DEBUG2(" realm %s: auth_pool = %s", name2, pool);
+
+ if (!old_realm_config(rc, cs, r)) {
+ goto error;
+ }
+
+ cf_log_info(cs, " } # realm %s", name2);
+ return 1;
}
+#endif
- cp = cf_pair_find(cs, "acct_pool");
- if (cp) pool = cf_pair_value(cp);
- if (cp && pool) {
- if (!add_pool_to_realm(filename, cf_pair_lineno(cp),
- pool, &r->acct_pool, HOME_TYPE_ACCT)) {
- free(r);
- return 0;
+#ifdef HAVE_REGEX_H
+ if (name2[0] == '~') {
+ int rcode;
+ regex_t reg;
+
+ /*
+ * Include substring matches.
+ */
+ rcode = regcomp(®, name2 + 1,
+ REG_EXTENDED | REG_NOSUB | REG_ICASE);
+ if (rcode != 0) {
+ char buffer[256];
+
+ regerror(rcode, ®, buffer, sizeof(buffer));
+
+ cf_log_err(cf_sectiontoitem(cs),
+ "Invalid regex \"%s\": %s",
+ name2 + 1, buffer);
+ goto error;
}
- DEBUG2(" realm %s: acct_pool = %s", name2, pool);
+ regfree(®);
}
+#endif
+
+ r = rad_malloc(sizeof(*r));
+ memset(r, 0, sizeof(*r));
+ r->name = name2;
r->striprealm = 1;
+#ifdef WITH_PROXY
+ r->auth_pool = auth_pool;
+ r->acct_pool = acct_pool;
- if ((cf_section_value_find(cs, "nostrip")) != NULL) {
+ if (auth_pool_name &&
+ (auth_pool_name == acct_pool_name)) { /* yes, ptr comparison */
+ cf_log_info(cs, "\tpool = %s", auth_pool_name);
+ } else {
+ if (auth_pool_name) cf_log_info(cs, "\tauth_pool = %s", auth_pool_name);
+ if (acct_pool_name) cf_log_info(cs, "\tacct_pool = %s", acct_pool_name);
+ }
+#endif
+
+ cp = cf_pair_find(cs, "nostrip");
+ if (cp && (cf_pair_value(cp) == NULL)) {
r->striprealm = 0;
- DEBUG2(" realm %s: nostrip", name2);
+ cf_log_info(cs, "\tnostrip");
}
/*
* was no auth_pool or acct_pool. Double-check
* it, just to be safe.
*/
- } else if (!old_realm_config(filename, cs, r)) {
- free(r);
- return 0;
+ } else if (!old_realm_config(rc, cs, r)) {
+ goto error;
}
+#ifdef HAVE_REGEX_H
+ /*
+ * It's a regex. Add it to a separate list.
+ */
+ if (name2[0] == '~') {
+ realm_regex_t *rr, **last;
+
+ rr = rad_malloc(sizeof(*rr));
+
+ last = &realms_regex;
+ while (*last) last = &((*last)->next); /* O(N^2)... sue me. */
+
+ r->name = name2;
+ rr->realm = r;
+ rr->next = NULL;
+
+ *last = rr;
+
+ cf_log_info(cs, " }");
+ return 1;
+ }
+#endif
+
if (!rbtree_insert(realms_byname, r)) {
rad_assert("Internal sanity check failed");
- free(r);
+ goto error;
+ }
+
+ cf_log_info(cs, " }");
+
+ return 1;
+
+ error:
+ cf_log_info(cs, " } # realm %s", name2);
+ free(r);
+ return 0;
+}
+
+#ifdef WITH_COA
+static const FR_NAME_NUMBER home_server_types[] = {
+ { "auth", HOME_TYPE_AUTH },
+ { "auth+acct", HOME_TYPE_AUTH },
+ { "acct", HOME_TYPE_ACCT },
+ { "coa", HOME_TYPE_COA },
+ { NULL, 0 }
+};
+
+static int pool_peek_type(CONF_SECTION *config, CONF_SECTION *cs)
+{
+ int home;
+ const char *name, *type;
+ CONF_PAIR *cp;
+ CONF_SECTION *server_cs;
+
+ cp = cf_pair_find(cs, "home_server");
+ if (!cp) {
+ cf_log_err(cf_sectiontoitem(cs), "Pool does not contain a \"home_server\" entry");
+ return HOME_TYPE_INVALID;
+ }
+
+ name = cf_pair_value(cp);
+ if (!name) {
+ cf_log_err(cf_pairtoitem(cp), "home_server entry does not reference a home server");
+ return HOME_TYPE_INVALID;
+ }
+
+ server_cs = cf_section_sub_find_name2(config, "home_server", name);
+ if (!server_cs) {
+ cf_log_err(cf_pairtoitem(cp), "home_server \"%s\" does not exist", name);
+ return HOME_TYPE_INVALID;
+ }
+
+ cp = cf_pair_find(server_cs, "type");
+ if (!cp) {
+ cf_log_err(cf_sectiontoitem(server_cs), "home_server %s does not contain a \"type\" entry", name);
+ return HOME_TYPE_INVALID;
+ }
+
+ type = cf_pair_value(cp);
+ if (!type) {
+ cf_log_err(cf_sectiontoitem(server_cs), "home_server %s contains an empty \"type\" entry", name);
+ return HOME_TYPE_INVALID;
+ }
+
+ home = fr_str2int(home_server_types, type, HOME_TYPE_INVALID);
+ if (home == HOME_TYPE_INVALID) {
+ cf_log_err(cf_sectiontoitem(server_cs), "home_server %s contains an invalid \"type\" entry of value \"%s\"", name, type);
+ return HOME_TYPE_INVALID;
+ }
+
+ return home; /* 'cause we miss it so much */
+}
+#endif
+
+int realms_init(CONF_SECTION *config)
+{
+ CONF_SECTION *cs;
+ realm_config_t *rc, *old_rc;
+
+ if (realms_byname) return 1;
+
+ realms_byname = rbtree_create(realm_name_cmp, free, 0);
+ if (!realms_byname) {
+ realms_free();
+ return 0;
+ }
+
+#ifdef WITH_PROXY
+ home_servers_byaddr = rbtree_create(home_server_addr_cmp, free, 0);
+ if (!home_servers_byaddr) {
+ realms_free();
+ return 0;
+ }
+
+ home_servers_byname = rbtree_create(home_server_name_cmp, NULL, 0);
+ if (!home_servers_byname) {
+ realms_free();
+ return 0;
+ }
+
+#ifdef WITH_STATS
+ home_servers_bynumber = rbtree_create(home_server_number_cmp, NULL, 0);
+ if (!home_servers_bynumber) {
+ realms_free();
+ return 0;
+ }
+#endif
+
+ home_pools_byname = rbtree_create(home_pool_name_cmp, NULL, 0);
+ if (!home_pools_byname) {
+ realms_free();
return 0;
}
+#endif
+
+ rc = rad_malloc(sizeof(*rc));
+ memset(rc, 0, sizeof(*rc));
+ rc->cs = config;
+
+#ifdef WITH_PROXY
+ cs = cf_subsection_find_next(config, NULL, "proxy");
+ if (cs) {
+ cf_section_parse(cs, rc, proxy_config);
+ } else {
+ rc->dead_time = DEAD_TIME;
+ rc->retry_count = RETRY_COUNT;
+ rc->retry_delay = RETRY_DELAY;
+ rc->fallback = 0;
+ rc->wake_all_if_all_dead= 0;
+ }
+#endif
+
+ for (cs = cf_subsection_find_next(config, NULL, "realm");
+ cs != NULL;
+ cs = cf_subsection_find_next(config, cs, "realm")) {
+ if (!realm_add(rc, cs)) {
+ free(rc);
+ realms_free();
+ return 0;
+ }
+ }
+
+#ifdef WITH_COA
+ /*
+ * CoA pools aren't tied to realms.
+ */
+ for (cs = cf_subsection_find_next(config, NULL, "home_server_pool");
+ cs != NULL;
+ cs = cf_subsection_find_next(config, cs, "home_server_pool")) {
+ int type;
+
+ /*
+ * Pool was already loaded.
+ */
+ if (cf_data_find(cs, "home_server_pool")) continue;
+
+ type = pool_peek_type(config, cs);
+ if (type == HOME_TYPE_INVALID) return 0;
+
+ if (!server_pool_add(rc, cs, type, TRUE)) {
+ return 0;
+ }
+ }
+
+ /*
+ * CoA home servers aren't tied to realms.
+ */
+ for (cs = cf_subsection_find_next(config, NULL, "home_server");
+ cs != NULL;
+ cs = cf_subsection_find_next(config, cs, "home_server")) {
+ /*
+ * Server was already loaded.
+ */
+ if (cf_data_find(cs, "home_server")) continue;
+
+ if (!home_server_add(rc, cs, HOME_TYPE_COA)) {
+ return 0;
+ }
+ }
+#endif
+
+
+#ifdef WITH_PROXY
+ xlat_register("home_server", xlat_home_server, NULL);
+ xlat_register("home_server_pool", xlat_server_pool, NULL);
+#endif
+
+ /*
+ * Swap pointers atomically.
+ */
+ old_rc = realm_config;
+ realm_config = rc;
+ free(old_rc);
return 1;
}
+/*
+ * Find a realm where "name" might be the regex.
+ */
+REALM *realm_find2(const char *name)
+{
+ REALM myrealm;
+ REALM *realm;
+
+ if (!name) name = "NULL";
+
+ myrealm.name = name;
+ realm = rbtree_finddata(realms_byname, &myrealm);
+ if (realm) return realm;
+
+#ifdef HAVE_REGEX_H
+ if (realms_regex) {
+ realm_regex_t *this;
+
+ for (this = realms_regex; this != NULL; this = this->next) {
+ if (strcmp(this->realm->name, name) == 0) {
+ return this->realm;
+ }
+ }
+ }
+#endif
+
+ /*
+ * Couldn't find a realm. Look for DEFAULT.
+ */
+ myrealm.name = "DEFAULT";
+ return rbtree_finddata(realms_byname, &myrealm);
+}
+
/*
* Find a realm in the REALM list.
REALM *realm_find(const char *name)
{
REALM myrealm;
-
+ REALM *realm;
+
if (!name) name = "NULL";
myrealm.name = name;
+ realm = rbtree_finddata(realms_byname, &myrealm);
+ if (realm) return realm;
+
+#ifdef HAVE_REGEX_H
+ if (realms_regex) {
+ realm_regex_t *this;
+
+ for (this = realms_regex; this != NULL; this = this->next) {
+ int compare;
+ regex_t reg;
+
+ /*
+ * Include substring matches.
+ */
+ if (regcomp(®, this->realm->name + 1,
+ REG_EXTENDED | REG_NOSUB | REG_ICASE) != 0) {
+ continue;
+ }
+
+ compare = regexec(®, name, 0, NULL, 0);
+ regfree(®);
+
+ if (compare == 0) return this->realm;
+ }
+ }
+#endif
+
+ /*
+ * Couldn't find a realm. Look for DEFAULT.
+ */
+ myrealm.name = "DEFAULT";
return rbtree_finddata(realms_byname, &myrealm);
}
-home_server *home_server_ldb(REALM *r, int code)
+#ifdef WITH_PROXY
+home_server *home_server_ldb(const char *realmname,
+ home_pool_t *pool, REQUEST *request)
{
- uint32_t count;
- home_server *lb;
- home_pool_t *pool;
+ int start;
+ int count;
+ home_server *found = NULL;
+ home_server *zombie = NULL;
+ VALUE_PAIR *vp;
- if (code == PW_AUTHENTICATION_REQUEST) {
- pool = r->auth_pool;
+ /*
+ * Determine how to pick choose the home server.
+ */
+ switch (pool->type) {
+ uint32_t hash;
- } else if (code == PW_ACCOUNTING_REQUEST) {
- pool = r->acct_pool;
+ /*
+ * For load-balancing by client IP address, we
+ * pick a home server by hashing the client IP.
+ *
+ * This isn't as even a load distribution as
+ * tracking the State attribute, but it's better
+ * than nothing.
+ */
+ case HOME_POOL_CLIENT_BALANCE:
+ switch (request->packet->src_ipaddr.af) {
+ case AF_INET:
+ hash = fr_hash(&request->packet->src_ipaddr.ipaddr.ip4addr,
+ sizeof(request->packet->src_ipaddr.ipaddr.ip4addr));
+ break;
+ case AF_INET6:
+ hash = fr_hash(&request->packet->src_ipaddr.ipaddr.ip6addr,
+ sizeof(request->packet->src_ipaddr.ipaddr.ip6addr));
+ break;
+ default:
+ hash = 0;
+ break;
+ }
+ start = hash % pool->num_home_servers;
+ break;
- } else {
- rad_assert("Internal sanity check failed");
- return NULL;
- }
+ case HOME_POOL_CLIENT_PORT_BALANCE:
+ switch (request->packet->src_ipaddr.af) {
+ case AF_INET:
+ hash = fr_hash(&request->packet->src_ipaddr.ipaddr.ip4addr,
+ sizeof(request->packet->src_ipaddr.ipaddr.ip4addr));
+ break;
+ case AF_INET6:
+ hash = fr_hash(&request->packet->src_ipaddr.ipaddr.ip6addr,
+ sizeof(request->packet->src_ipaddr.ipaddr.ip6addr));
+ break;
+ default:
+ hash = 0;
+ break;
+ }
+ fr_hash_update(&request->packet->src_port,
+ sizeof(request->packet->src_port), hash);
+ start = hash % pool->num_home_servers;
+ break;
- if (!pool) {
- rad_assert("Internal sanity check failed");
- return NULL;
- }
+ case HOME_POOL_KEYED_BALANCE:
+ if ((vp = pairfind(request->config_items, PW_LOAD_BALANCE_KEY, 0)) != NULL) {
+ hash = fr_hash(vp->vp_strvalue, vp->length);
+ start = hash % pool->num_home_servers;
+ break;
+ }
+ /* FALL-THROUGH */
+
+ case HOME_POOL_LOAD_BALANCE:
+ case HOME_POOL_FAIL_OVER:
+ start = 0;
+ break;
+
+ default: /* this shouldn't happen... */
+ start = 0;
+ break;
- lb = NULL;
+ }
+ /*
+ * Starting with the home server we chose, loop through
+ * all home servers. If the current one is dead, skip
+ * it. If it is too busy, skip it.
+ *
+ * Otherwise, use it.
+ */
for (count = 0; count < pool->num_home_servers; count++) {
- home_server *home = pool->servers[count];
+ home_server *home = pool->servers[(start + count) % pool->num_home_servers];
+
+ if (!home) continue;
+ /*
+ * Skip dead home servers.
+ */
if (home->state == HOME_STATE_IS_DEAD) {
continue;
}
if (home->currently_outstanding >= home->max_outstanding) {
continue;
}
-
+
+#ifdef WITH_DETAIL
+ /*
+ * We read the packet from a detail file, AND it
+ * came from this server. Don't re-proxy it
+ * there.
+ */
+ if ((request->listener->type == RAD_LISTEN_DETAIL) &&
+ (request->packet->code == PW_ACCOUNTING_REQUEST) &&
+ (fr_ipaddr_cmp(&home->ipaddr, &request->packet->src_ipaddr) == 0)) {
+ continue;
+ }
+#endif
+
/*
- * Fail-over, pick the first one that matches.
+ * It's zombie, so we remember the first zombie
+ * we find, but we don't mark it as a "live"
+ * server.
*/
- if (pool->type == HOME_POOL_FAIL_OVER) {
- return home;
+ if (home->state == HOME_STATE_ZOMBIE) {
+ if (!zombie) zombie = home;
+ continue;
}
/*
- * FUTURE: If we're well into "zombie_period",
- * then we probably want to think about
- * load-balancing the packet somewhere else, as
- * the home server is probably dead.
+ * We've found the first "live" one. Use that.
*/
+ if (pool->type != HOME_POOL_LOAD_BALANCE) {
+ found = home;
+ break;
+ }
/*
- * We're doing load-balancing. Pick a random
- * number, which will be used to determine which
- * home server is chosen.
+ * Otherwise we're doing some kind of load balancing.
+ * If we haven't found one yet, pick this one.
*/
- if (!lb) {
- lb = home;
+ if (!found) {
+ found = home;
continue;
}
+ RDEBUG3("PROXY %s %d\t%s %d",
+ found->name, found->currently_outstanding,
+ home->name, home->currently_outstanding);
+
/*
- * See the "camel book" for why this works.
+ * Prefer this server if it's less busy than the
+ * one we had previously found.
+ */
+ if (home->currently_outstanding < found->currently_outstanding) {
+ RDEBUG3("PROXY Choosing %s: It's less busy than %s",
+ home->name, found->name);
+ found = home;
+ continue;
+ }
+
+ /*
+ * Ignore servers which are busier than the one
+ * we found.
+ */
+ if (home->currently_outstanding > found->currently_outstanding) {
+ RDEBUG3("PROXY Skipping %s: It's busier than %s",
+ home->name, found->name);
+ continue;
+ }
+
+ /*
+ * From the list of servers which have the same
+ * load, choose one at random.
+ */
+ if (((count + 1) * (fr_rand() & 0xffff)) < (uint32_t) 0x10000) {
+ found = home;
+ }
+ } /* loop over the home servers */
+
+ /*
+ * We have no live servers, BUT we have a zombie. Use
+ * the zombie as a last resort.
+ */
+ if (!found && zombie) {
+ found = zombie;
+ zombie = NULL;
+ }
+
+ /*
+ * There's a fallback if they're all dead.
+ */
+ if (!found && pool->fallback) {
+ found = pool->fallback;
+ }
+
+ if (found) {
+ update_and_return:
+ /*
+ * Allocate the proxy packet, only if it wasn't
+ * already allocated by a module. This check is
+ * mainly to support the proxying of EAP-TTLS and
+ * EAP-PEAP tunneled requests.
+ *
+ * In those cases, the EAP module creates a
+ * "fake" request, and recursively passes it
+ * through the authentication stage of the
+ * server. The module then checks if the request
+ * was supposed to be proxied, and if so, creates
+ * a proxy packet from the TUNNELED request, and
+ * not from the EAP request outside of the
+ * tunnel.
*
- * If (rand(0..n) < 1), pick the current server.
- * We add a scale factor of 65536, to avoid
- * floating point.
+ * The proxy then works like normal, except that
+ * the response packet is "eaten" by the EAP
+ * module, and encapsulated into an EAP packet.
*/
- if (((count + 1) * (lrad_rand() & 0xffff)) < (uint32_t) 0x10000) {
- lb = home;
+ if (!request->proxy) {
+ if ((request->proxy = rad_alloc(TRUE)) == NULL) {
+ radlog(L_ERR|L_CONS, "no memory");
+ exit(1);
+ }
+
+ /*
+ * Copy the request, then look up name
+ * and plain-text password in the copy.
+ *
+ * Note that the User-Name attribute is
+ * the *original* as sent over by the
+ * client. The Stripped-User-Name
+ * attribute is the one hacked through
+ * the 'hints' file.
+ */
+ request->proxy->vps = paircopy(request->packet->vps);
}
- } /* loop over the realms */
+
+ /*
+ * Update the various fields as appropriate.
+ */
+ request->proxy->src_ipaddr = found->src_ipaddr;
+ request->proxy->src_port = 0;
+ request->proxy->dst_ipaddr = found->ipaddr;
+ request->proxy->dst_port = found->port;
+ request->home_server = found;
+
+ /*
+ * We're supposed to add a Message-Authenticator
+ * if it doesn't exist, and it doesn't exist.
+ */
+ if (found->message_authenticator &&
+ (request->packet->code == PW_AUTHENTICATION_REQUEST) &&
+ !pairfind(request->proxy->vps, PW_MESSAGE_AUTHENTICATOR, 0)) {
+ radius_pairmake(request, &request->proxy->vps,
+ "Message-Authenticator", "0x00",
+ T_OP_SET);
+ }
+
+ return found;
+ }
/*
* No live match found, and no fallback to the "DEFAULT"
* "pings", as they will be marked live when they
* actually are live.
*/
- if (!lb &&
- !mainconfig.proxy_fallback &&
- mainconfig.wake_all_if_all_dead) {
+ if (!realm_config->fallback &&
+ realm_config->wake_all_if_all_dead) {
for (count = 0; count < pool->num_home_servers; count++) {
home_server *home = pool->servers[count];
+ if (!home) continue;
+
if ((home->state == HOME_STATE_IS_DEAD) &&
(home->ping_check == HOME_PING_CHECK_NONE)) {
home->state = HOME_STATE_ALIVE;
- if (!lb) lb = home;
+ if (!found) found = home;
}
}
+
+ if (found) goto update_and_return;
}
/*
* Still nothing. Look up the DEFAULT realm, but only
* if we weren't looking up the NULL or DEFAULT realms.
*/
- if (!lb &&
- mainconfig.proxy_fallback &&
- (strcmp(r->name, "NULL") != 0) &&
- (strcmp(r->name, "DEFAULT") != 0)) {
+ if (realm_config->fallback &&
+ realmname &&
+ (strcmp(realmname, "NULL") != 0) &&
+ (strcmp(realmname, "DEFAULT") != 0)) {
REALM *rd = realm_find("DEFAULT");
- if (rd) {
- DEBUG2(" Realm %s has no live home servers. Falling back to the DEFAULT realm.", r->name);
- return home_server_ldb(rd, code);
+ if (!rd) return NULL;
+
+ pool = NULL;
+ if (request->packet->code == PW_AUTHENTICATION_REQUEST) {
+ pool = rd->auth_pool;
+
+ } else if (request->packet->code == PW_ACCOUNTING_REQUEST) {
+ pool = rd->acct_pool;
}
+ if (!pool) return NULL;
+
+ RDEBUG2("PROXY - realm %s has no live home servers. Falling back to the DEFAULT realm.", realmname);
+ return home_server_ldb(rd->name, pool, request);
}
/*
- * Return the appropriate home server.
+ * Still haven't found anything. Oh well.
*/
- return lb;
+ return NULL;
}
-home_server *home_server_find(lrad_ipaddr_t *ipaddr, int port)
+home_server *home_server_find(fr_ipaddr_t *ipaddr, int port, int proto)
{
home_server myhome;
+ memset(&myhome, 0, sizeof(myhome));
myhome.ipaddr = *ipaddr;
myhome.port = port;
+#ifdef WITH_TCP
+ myhome.proto = proto;
+#else
+ myhome.proto = IPPROTO_UDP;
+#endif
+ myhome.server = NULL; /* we're not called for internal proxying */
return rbtree_finddata(home_servers_byaddr, &myhome);
}
+
+#ifdef WITH_COA
+home_server *home_server_byname(const char *name, int type)
+{
+ home_server myhome;
+
+ memset(&myhome, 0, sizeof(myhome));
+ myhome.type = type;
+ myhome.name = name;
+
+ return rbtree_finddata(home_servers_byname, &myhome);
+}
+#endif
+
+#ifdef WITH_STATS
+home_server *home_server_bynumber(int number)
+{
+ home_server myhome;
+
+ memset(&myhome, 0, sizeof(myhome));
+ myhome.number = number;
+ myhome.server = NULL; /* we're not called for internal proxying */
+
+ return rbtree_finddata(home_servers_bynumber, &myhome);
+}
+#endif
+
+home_pool_t *home_pool_byname(const char *name, int type)
+{
+ home_pool_t mypool;
+
+ memset(&mypool, 0, sizeof(mypool));
+ mypool.name = name;
+ mypool.server_type = type;
+ return rbtree_finddata(home_pools_byname, &mypool);
+}
+
+#endif