static int start_authd(void);
static void parse_authd_reply(rb_helper * helper);
static void restart_authd_cb(rb_helper * helper);
+static EVH timeout_dead_authd_clients;
rb_helper *authd_helper;
static char *authd_path;
-uint32_t cid = 1;
+uint32_t cid;
static rb_dictionary *cid_clients;
+static struct ev_entry *timeout_ev;
rb_dictionary *bl_stats;
ConfigFileEntry.dpath, RB_PATH_SEPARATOR, RB_PATH_SEPARATOR, suffix);
if(access(fullpath, X_OK) == -1)
{
- ilog(L_MAIN,
- "Unable to execute authd in %s or %s/bin",
- ircd_paths[IRCD_PATH_LIBEXEC], ConfigFileEntry.dpath);
+ ierror("Unable to execute authd in %s or %s/bin",
+ ircd_paths[IRCD_PATH_LIBEXEC], ConfigFileEntry.dpath);
sendto_realops_snomask(SNO_GENERAL, L_ALL,
"Unable to execute authd in %s or %s/bin",
ircd_paths[IRCD_PATH_LIBEXEC], ConfigFileEntry.dpath);
if(bl_stats == NULL)
bl_stats = rb_dictionary_create("blacklist statistics", strcasecmp);
+ if(timeout_ev == NULL)
+ timeout_ev = rb_event_addish("timeout_dead_authd_clients", timeout_dead_authd_clients, NULL, 1);
+
authd_helper = rb_helper_start("authd", authd_path, parse_authd_reply, restart_authd_cb);
if(authd_helper == NULL)
{
- ilog(L_MAIN, "Unable to start authd helper: %s", strerror(errno));
+ ierror("Unable to start authd helper: %s", strerror(errno));
sendto_realops_snomask(SNO_GENERAL, L_ALL, "Unable to start authd helper: %s", strerror(errno));
return 1;
}
return 0;
}
+static inline uint32_t
+str_to_cid(const char *str)
+{
+ long lcid = strtol(str, NULL, 16);
+
+ if(lcid > UINT32_MAX || lcid <= 0)
+ {
+ iwarn("authd sent us back a bad client ID: %lx", lcid);
+ restart_authd();
+ return 0;
+ }
+
+ return (uint32_t)lcid;
+}
+
+static inline struct Client *
+cid_to_client(uint32_t cid, bool delete)
+{
+ struct Client *client_p;
+
+ if(delete)
+ client_p = rb_dictionary_delete(cid_clients, RB_UINT_TO_POINTER(cid));
+ else
+ client_p = rb_dictionary_retrieve(cid_clients, RB_UINT_TO_POINTER(cid));
+
+ if(client_p == NULL)
+ {
+ iwarn("authd sent us back a bad client ID: %ux", cid);
+ restart_authd();
+ return NULL;
+ }
+
+ return client_p;
+}
+
static void
parse_authd_reply(rb_helper * helper)
{
ssize_t len;
int parc;
- char dnsBuf[READBUF_SIZE];
+ char authdBuf[READBUF_SIZE];
char *parv[MAXPARA + 1];
- long lcid;
- char *id;
+ uint32_t cid;
struct Client *client_p;
- while((len = rb_helper_read(helper, dnsBuf, sizeof(dnsBuf))) > 0)
+ while((len = rb_helper_read(helper, authdBuf, sizeof(authdBuf))) > 0)
{
- parc = rb_string_to_array(dnsBuf, parv, MAXPARA+1);
+ parc = rb_string_to_array(authdBuf, parv, MAXPARA+1);
switch (*parv[0])
{
return;
}
- if((lcid = strtol(parv[1], NULL, 16)) > UINT32_MAX)
- {
- iwarn("authd sent us back a bad client ID");
- restart_authd();
+ if((cid = str_to_cid(parv[1])) == 0)
return;
- }
/* cid to uid (retrieve and delete) */
- if((id = rb_dictionary_delete(cid_clients, RB_UINT_TO_POINTER((uint32_t)lcid))) == NULL)
- {
- iwarn("authd sent us back an unknown client ID");
- restart_authd();
- return;
- }
-
- if((client_p = find_id(id)) == NULL)
- {
- /* Client vanished... */
- rb_free(id);
+ if((client_p = cid_to_client(cid, true)) == NULL)
return;
- }
-
- rb_free(id);
- authd_decide_client(client_p, parv[2], parv[3], true, '\0', NULL, NULL);
+ authd_accept_client(client_p, parv[2], parv[3]);
break;
case 'R': /* Reject client */
if(parc != 7)
return;
}
- if((lcid = strtol(parv[1], NULL, 16)) > UINT32_MAX)
- {
- iwarn("authd sent us back a bad client ID");
- restart_authd();
+ if((cid = str_to_cid(parv[1])) == 0)
return;
- }
/* cid to uid (retrieve and delete) */
- if((id = rb_dictionary_delete(cid_clients, RB_UINT_TO_POINTER((uint32_t)lcid))) == NULL)
- {
- iwarn("authd sent us back an unknown client ID");
- restart_authd();
+ if((client_p = cid_to_client(cid, true)) == NULL)
return;
- }
-
- if((client_p = find_id(id)) == NULL)
- {
- /* Client vanished... */
- rb_free(id);
- return;
- }
- rb_free(id);
-
- authd_decide_client(client_p, parv[3], parv[4], false, toupper(*parv[2]), parv[5], parv[6]);
+ authd_reject_client(client_p, parv[3], parv[4], toupper(*parv[2]), parv[5], parv[6]);
break;
case 'N': /* Notice to client */
- if(parv != 3)
+ if(parc != 3)
{
iwarn("authd sent us a result with wrong number of arguments: got %d", parc);
restart_authd();
return;
}
-
- if((lcid = strtol(parv[1], NULL, 16)) > UINT32_MAX)
- {
- iwarn("authd sent us back a bad client ID");
- restart_authd();
- return;
- }
- /* cid to uid */
- if((id = rb_dictionary_retrieve(cid_clients, RB_UINT_TO_POINTER((uint32_t)lcid))) == NULL)
- {
- iwarn("authd sent us back an unknown client ID");
- restart_authd();
+ if((cid = str_to_cid(parv[1])) == 0)
return;
- }
- if((client_p = find_id(id)) == NULL)
- /* Client vanished... we'll let the timeout code handle it */
+ /* cid to uid */
+ if((client_p = cid_to_client(cid, false)) == NULL)
return;
sendto_one_notice(client_p, ":%s", parv[2]);
case 'E': /* DNS Result */
if(parc != 5)
{
- ilog(L_MAIN, "authd sent a result with wrong number of arguments: got %d", parc);
+ iwarn("authd sent a result with wrong number of arguments: got %d", parc);
restart_authd();
return;
}
case 'W': /* Oper warning */
if(parc != 3)
{
- ilog(L_MAIN, "authd sent a result with wrong number of arguments: got %d", parc);
+ iwarn("authd sent a result with wrong number of arguments: got %d", parc);
restart_authd();
return;
}
{
case 'D': /* Debug */
sendto_realops_snomask(SNO_DEBUG, L_ALL, "authd debug: %s", parv[3]);
+ idebug("authd: %s", parv[3]);
break;
case 'I': /* Info */
sendto_realops_snomask(SNO_GENERAL, L_ALL, "authd info: %s", parv[3]);
- inotice("authd info: %s", parv[3]);
+ inotice("authd: %s", parv[3]);
break;
case 'W': /* Warning */
sendto_realops_snomask(SNO_GENERAL, L_ALL, "authd WARNING: %s", parv[3]);
- iwarn("authd warning: %s", parv[3]);
+ iwarn("authd: %s", parv[3]);
break;
case 'C': /* Critical (error) */
sendto_realops_snomask(SNO_GENERAL, L_ALL, "authd CRITICAL: %s", parv[3]);
- ierror("authd critical: %s", parv[3]);
+ ierror("authd: %s", parv[3]);
break;
default: /* idk */
sendto_realops_snomask(SNO_GENERAL, L_ALL, "authd sent us an unknown oper notice type (%s): %s", parv[2], parv[3]);
case 'Z': /* End of stats reply */
if(parc < 3)
{
- ilog(L_MAIN, "authd sent a result with wrong number of arguments: got %d", parc);
+ iwarn("authd sent a result with wrong number of arguments: got %d", parc);
restart_authd();
return;
}
/* parv[0] conveys status */
if(parc < 4)
{
- ilog(L_MAIN, "authd sent a result with wrong number of arguments: got %d", parc);
+ iwarn("authd sent a result with wrong number of arguments: got %d", parc);
restart_authd();
return;
}
{
if(start_authd())
{
- ilog(L_MAIN, "Unable to start authd helper: %s", strerror(errno));
+ ierror("Unable to start authd helper: %s", strerror(errno));
exit(0);
}
}
/* These will do for now */
set_authd_timeout("ident_timeout", GlobalSetOptions.ident_timeout);
set_authd_timeout("rdns_timeout", ConfigFileEntry.connect_timeout);
- set_authd_timeout("blacklist_timeout", ConfigFileEntry.connect_timeout);
+ set_authd_timeout("rbl_timeout", ConfigFileEntry.connect_timeout);
+ ident_check_enable(!ConfigFileEntry.disable_auth);
}
static void
restart_authd_cb(rb_helper * helper)
{
- ilog(L_MAIN, "authd: restart_authd_cb called, authd died?");
+ rb_dictionary_iter iter;
+ struct Client *client_p;
+
+ iwarn("authd: restart_authd_cb called, authd died?");
sendto_realops_snomask(SNO_GENERAL, L_ALL, "authd: restart_authd_cb called, authd died?");
+
if(helper != NULL)
{
rb_helper_close(helper);
authd_helper = NULL;
}
+
+ RB_DICTIONARY_FOREACH(client_p, &iter, cid_clients)
+ {
+ /* Abort any existing clients */
+ authd_abort_client(client_p);
+ }
+
start_authd();
}
uint16_t client_port, listen_port;
uint32_t authd_cid;
- if(client_p->preClient == NULL || client_p->preClient->authd_cid == 0)
+ if(client_p->preClient == NULL || client_p->preClient->authd_cid != 0)
return;
authd_cid = client_p->preClient->authd_cid = generate_cid();
/* Collisions are extremely unlikely, so disregard the possibility */
- rb_dictionary_add(cid_clients, RB_UINT_TO_POINTER(authd_cid), rb_strdup(client_p->id));
+ rb_dictionary_add(cid_clients, RB_UINT_TO_POINTER(authd_cid), client_p);
/* Retrieve listener and client IP's */
rb_inet_ntop_sock((struct sockaddr *)&client_p->preClient->lip, listen_ipaddr, sizeof(listen_ipaddr));
rb_inet_ntop_sock((struct sockaddr *)&client_p->localClient->ip, client_ipaddr, sizeof(client_ipaddr));
/* Retrieve listener and client ports */
-#ifdef RB_IPV6
- if(GET_SS_FAMILY(&client_p->preClient->lip) == AF_INET6)
- listen_port = ntohs(((struct sockaddr_in6 *)&client_p->preClient->lip)->sin6_port);
- else
-#endif
- listen_port = ntohs(((struct sockaddr_in *)&client_p->preClient->lip)->sin_port);
-
-#ifdef RB_IPV6
- if(GET_SS_FAMILY(&client_p->localClient->ip) == AF_INET6)
- client_port = ntohs(((struct sockaddr_in6 *)&client_p->localClient->ip)->sin6_port);
- else
-#endif
- client_port = ntohs(((struct sockaddr_in *)&client_p->localClient->ip)->sin_port);
+ listen_port = ntohs(GET_SS_PORT(&client_p->preClient->lip));
+ client_port = ntohs(GET_SS_PORT(&client_p->localClient->ip));
- /* FIXME timeout should be configurable */
- client_p->preClient->authd_timeout = rb_current_time() + 45;
+ /* Add a bit of a fudge factor... */
+ client_p->preClient->authd_timeout = rb_current_time() + ConfigFileEntry.connect_timeout + 10;
rb_helper_write(authd_helper, "C %x %s %hu %s %hu", authd_cid, listen_ipaddr, listen_port, client_ipaddr, client_port);
}
*
* After this point authd no longer "owns" the client.
*/
-void
+static inline void
authd_decide_client(struct Client *client_p, const char *ident, const char *host, bool accept, char cause, const char *data, const char *reason)
{
if(client_p->preClient == NULL || client_p->preClient->authd_cid == 0)
if(*ident != '*')
{
rb_strlcpy(client_p->username, ident, sizeof(client_p->username));
- ServerStats.is_abad++; /* s_auth used to do this, stay compatible */
+ ServerStats.is_asuc++;
}
else
- ServerStats.is_asuc++;
+ ServerStats.is_abad++; /* s_auth used to do this, stay compatible */
if(*host != '*')
rb_strlcpy(client_p->host, host, sizeof(client_p->host));
client_p->preClient->authd_reason = (reason == NULL ? NULL : rb_strdup(reason));
rb_dictionary_delete(cid_clients, RB_UINT_TO_POINTER(client_p->preClient->authd_cid));
-
client_p->preClient->authd_cid = 0;
/*
read_packet(client_p->localClient->F, client_p);
}
+/* Convenience function to accept client */
+void
+authd_accept_client(struct Client *client_p, const char *ident, const char *host)
+{
+ authd_decide_client(client_p, ident, host, true, '\0', NULL, NULL);
+}
+
+/* Convenience function to reject client */
+void
+authd_reject_client(struct Client *client_p, const char *ident, const char *host, char cause, const char *data, const char *reason)
+{
+ authd_decide_client(client_p, ident, host, false, cause, data, reason);
+}
+
void
authd_abort_client(struct Client *client_p)
{
- if(client_p->preClient == NULL)
+ if(client_p == NULL || client_p->preClient == NULL)
return;
if(client_p->preClient->authd_cid == 0)
rb_dictionary_delete(cid_clients, RB_UINT_TO_POINTER(client_p->preClient->authd_cid));
- rb_helper_write(authd_helper, "E %x", client_p->preClient->authd_cid);
+ if(authd_helper != NULL)
+ rb_helper_write(authd_helper, "E %x", client_p->preClient->authd_cid);
+
+ /* XXX should we blindly allow like this? */
+ authd_accept_client(client_p, "*", "*");
client_p->preClient->authd_cid = 0;
}
+static void
+timeout_dead_authd_clients(void *notused __unused)
+{
+ rb_dictionary_iter iter;
+ struct Client *client_p;
+
+ RB_DICTIONARY_FOREACH(client_p, &iter, cid_clients)
+ {
+ if(client_p->preClient->authd_timeout < rb_current_time())
+ authd_abort_client(client_p);
+ }
+}
+
/* Turn a cause char (who rejected us) into the name of the provider */
const char *
get_provider_string(char cause)
{
rb_dlink_node *ptr;
struct blacklist_stats *stats = rb_malloc(sizeof(struct blacklist_stats));
- char filterbuf[BUFSIZE];
+ char filterbuf[BUFSIZE] = "*";
size_t s = 0;
/* Build a list of comma-separated values for authd.
}
/* Adjust an authd timeout value */
-void
+bool
set_authd_timeout(const char *key, int timeout)
{
+ if(timeout <= 0)
+ return false;
+
rb_helper_write(authd_helper, "O %s %d", key, timeout);
+ return true;
+}
+
+/* Enable identd checks */
+void
+ident_check_enable(bool enabled)
+{
+ rb_helper_write(authd_helper, "O ident_enabled %d", enabled ? 1 : 0);
+}
+
+/* Create an OPM listener */
+void
+create_opm_listener(const char *ip, uint16_t port)
+{
+ rb_helper_write(authd_helper, "O opm_listener %s %hu", ip, port);
+}
+
+/* Disable all OPM scans */
+void
+opm_check_enable(bool enabled)
+{
+ rb_helper_write(authd_helper, "O opm_enable %d", enabled ? 1 : 0);
+}
+
+/* Create an OPM proxy scan */
+void
+create_opm_proxy_scan(const char *scan, uint16_t port)
+{
+ rb_helper_write(authd_helper, "O opm_scanner %s %hu", scan, port);
}