+2006-12-06 Michael Poole <mdpoole@troilus.org>
+
+ * include/listener.h (enum ListenerFlag): New enum.
+ (struct Listener): Convert "active", "hidden" and "server" to a
+ flagset.
+ (add_listener): Convert "is_server" and "is_hidden" arguments to
+ use the same flagset structure.
+
+ * ircd/ircd_parser.y (listen_flags): New variable.
+ (general_vhost): Consolidate references to $3 to use a variable.
+ (portblock): Use listen_flags instead of tconn and tping.
+ (portserver): Likewise.
+ (porthidden): Likewise.
+
+ * ircd/listener.c (show_ports): Use new field in Listener.
+ (set_listener_options): New function.
+ (inetport): Use it.
+ (add_listener): Use new field in Listener. When reusing an extant
+ listener, call set_listener_options() so the options are updated.
+ (mark_listeners_closing): Use new field in Listener.
+ (close_listeners): Use new helper macro to check activeness.
+ (release_listener): Likewise.
+ (accept_connection): Likewise.
+
+ * ircd/s_bsd.c (report_error): Use the standard snotice rate
+ limiting here.
+ (add_connection): Use new helper macro to check serverness.
+
2006-11-04 Michael Poole <mdpoole@troilus.org>
* ircd/m_nick.c (m_nick): If we get NICK on a server port, tell
#ifndef INCLUDED_res_h
#include "res.h"
#endif
+#ifndef INCLUDED_client_h
+#include "client.h" /* flagset stuff. oh well. */
+#endif
#ifndef INCLUDED_sys_types_h
#include <sys/types.h> /* size_t, broken BSD system headers */
#define INCLUDED_sys_types_h
struct Client;
struct StatDesc;
+enum ListenerFlag {
+ /** Port is currently accepting connections. */
+ LISTEN_ACTIVE,
+ /** Port is hidden from /STATS P output. */
+ LISTEN_HIDDEN,
+ /** Port accepts only server connections. */
+ LISTEN_SERVER,
+ /** Sentinel for counting listener flags. */
+ LISTEN_LAST_FLAG
+};
+
+DECLARE_FLAGSET(ListenerFlags, LISTEN_LAST_FLAG);
+
/** Describes a single listening port. */
struct Listener {
struct Listener* next; /**< list node pointer */
+ struct ListenerFlags flags; /**< on-off flags for listener */
int fd; /**< file descriptor */
int ref_count; /**< number of connection references */
- unsigned char active; /**< current state of listener */
- unsigned char hidden; /**< hidden in stats output for clients */
- unsigned char server; /**< 1 if port is a server listener */
unsigned char mask_bits; /**< number of bits in mask address */
int index; /**< index into poll array */
time_t last_accept; /**< last time listener accepted */
struct Socket socket; /**< describe socket to event system */
};
+#define listener_server(LISTENER) FlagHas(&(LISTENER)->flags, LISTEN_SERVER)
+#define listener_active(LISTENER) FlagHas(&(LISTENER)->flags, LISTEN_ACTIVE)
+
extern void add_listener(int port, const char* vaddr_ip,
- const char* mask, int is_server,
- int is_hidden);
+ const char* mask,
+ const struct ListenerFlags *flags);
extern void close_listener(struct Listener* listener);
extern void close_listeners(void);
extern void count_listener_memory(int* count_out, size_t* size_out);
int tping, tconn, maxlinks, sendq, port, invert, stringno, flags;
char *name, *pass, *host, *ip, *username, *origin, *hub_limit;
char *stringlist[MAX_STRINGS];
+ struct ListenerFlags listen_flags;
struct ConnectionClass *c_class;
struct DenyConf *dconf;
struct ServerConf *sconf;
generalvhost: VHOST '=' QSTRING ';'
{
struct irc_in_addr addr;
- if (!strcmp($3, "*")) {
+ char *vhost = $3;
+
+ if (!strcmp(vhost, "*")) {
/* This traditionally meant bind to all interfaces and connect
* from the default. */
- } else if (!ircd_aton(&addr, $3))
- parse_error("Invalid virtual host '%s'.", $3);
+ } else if (!ircd_aton(&addr, vhost))
+ parse_error("Invalid virtual host '%s'.", vhost);
else if (irc_in_addr_is_ipv4(&addr))
memcpy(&VirtualHost_v4.addr, &addr, sizeof(addr));
else
memcpy(&VirtualHost_v6.addr, &addr, sizeof(addr));
- MyFree($3);
+ MyFree(vhost);
};
adminblock: ADMIN
portblock: PORT '{' portitems '}' ';'
{
if (port > 0 && port <= 0xFFFF)
- add_listener(port, host, pass, tconn, tping);
+ add_listener(port, host, pass, &listen_flags);
else
parse_error("Port %d is out of range", port);
MyFree(host);
MyFree(pass);
+ memset(&listen_flags, 0, sizeof(listen_flags));
host = pass = NULL;
- port = tconn = tping = 0;
+ port = 0;
};
portitems: portitem portitems | portitem;
portitem: portnumber | portvhost | portmask | portserver | porthidden;
portserver: SERVER '=' YES ';'
{
- tconn = -1;
+ FlagSet(&listen_flags, LISTEN_SERVER);
} | SERVER '=' NO ';'
{
- tconn = 0;
+ FlagClr(&listen_flags, LISTEN_SERVER);
};
porthidden: HIDDEN '=' YES ';'
{
- tping = -1;
+ FlagSet(&listen_flags, LISTEN_HIDDEN);
} | HIDDEN '=' NO ';'
{
- tping = 0;
+ FlagClr(&listen_flags, LISTEN_HIDDEN);
};
clientblock: CLIENT
int show_hidden = IsOper(sptr);
int count = (IsOper(sptr) || MyUser(sptr)) ? 100 : 8;
int port = 0;
+ int len;
assert(0 != sptr);
for (listener = ListenerPollList; listener; listener = listener->next) {
if (port && port != listener->addr.port)
continue;
- flags[0] = (listener->server) ? 'S' : 'C';
- if (listener->hidden) {
- if (!show_hidden)
- continue;
- flags[1] = 'H';
- flags[2] = '\0';
- }
- else
- flags[1] = '\0';
+ len = 0;
+ flags[len++] = listener_server(listener) ? 'S' : 'C';
+ if (show_hidden && FlagHas(&listener->flags, LISTEN_HIDDEN))
+ flags[len++] = 'H';
+ flags[len] = '\0';
send_reply(sptr, RPL_STATSPLINE, listener->addr.port, listener->ref_count,
- flags, (listener->active) ? "active" : "disabled");
+ flags, listener_active(listener) ? "active" : "disabled");
if (--count == 0)
break;
}
#define HYBRID_SOMAXCONN 64
#endif
-/** Open listening socket for \a listener.
- * @param[in,out] listener Listener to make a socket for.
+/** Set or update socket options for \a listener.
+ * @param[in] listener Listener to determine socket option values.
+ * @param[in] fd File descriptor being updated.
* @return Non-zero on success, zero on failure.
*/
-static int inetport(struct Listener* listener)
+static int set_listener_options(struct Listener *listener, int fd)
{
- int fd;
+ int is_server;
- /*
- * At first, open a new socket
- */
- fd = os_socket(&listener->addr, SOCK_STREAM, get_listener_name(listener), 0);
- if (fd < 0)
- return 0;
+ is_server = listener_server(listener);
/*
* Set the buffer sizes for the listener. Accepted connections
* inherit the accepting sockets settings for SO_RCVBUF S_SNDBUF
* NOTE: this must be set before listen is called
*/
if (!os_set_sockbufs(fd,
- (listener->server) ? feature_int(FEAT_SOCKSENDBUF) : CLIENT_TCP_WINDOW,
- (listener->server) ? feature_int(FEAT_SOCKRECVBUF) : CLIENT_TCP_WINDOW)) {
+ is_server ? feature_int(FEAT_SOCKSENDBUF) : CLIENT_TCP_WINDOW,
+ is_server ? feature_int(FEAT_SOCKRECVBUF) : CLIENT_TCP_WINDOW)) {
report_error(SETBUFS_ERROR_MSG, get_listener_name(listener), errno);
close(fd);
return 0;
}
- if (!os_set_listen(fd, HYBRID_SOMAXCONN)) {
- report_error(LISTEN_ERROR_MSG, get_listener_name(listener), errno);
- close(fd);
- return 0;
- }
+
/*
* Set the TOS bits - this is nonfatal if it doesn't stick.
*/
- if (!os_set_tos(fd,feature_int((listener->server)?FEAT_TOS_SERVER : FEAT_TOS_CLIENT))) {
+ if (!os_set_tos(fd,feature_int(is_server ? FEAT_TOS_SERVER : FEAT_TOS_CLIENT))) {
report_error(TOS_ERROR_MSG, get_listener_name(listener), errno);
}
+ return 1;
+}
+
+/** Open listening socket for \a listener.
+ * @param[in,out] listener Listener to make a socket for.
+ * @return Non-zero on success, zero on failure.
+ */
+static int inetport(struct Listener* listener)
+{
+ int fd;
+
+ /*
+ * At first, open a new socket
+ */
+ fd = os_socket(&listener->addr, SOCK_STREAM, get_listener_name(listener), 0);
+ if (fd < 0)
+ return 0;
+ if (!os_set_listen(fd, HYBRID_SOMAXCONN)) {
+ report_error(LISTEN_ERROR_MSG, get_listener_name(listener), errno);
+ close(fd);
+ return 0;
+ }
+ if (!set_listener_options(listener, fd))
+ return 0;
if (!socket_add(&listener->socket, accept_connection, (void*) listener,
SS_LISTENING, 0, fd)) {
/* Error should already have been reported to the logs */
* @param[in] port Port number to listen on.
* @param[in] vhost_ip Local address to listen on.
* @param[in] mask Address mask to accept connections from.
- * @param[in] is_server Non-zero if the port should only accept server connections.
- * @param[in] is_hidden Non-zero if the port should be hidden from /STATS P output.
+ * @param[in] flags Flags describing listener options.
*/
void add_listener(int port, const char* vhost_ip, const char* mask,
- int is_server, int is_hidden)
+ const struct ListenerFlags *flags)
{
struct Listener* listener;
struct irc_in_addr vaddr;
listener = find_listener(port, &vaddr);
if (!listener)
listener = make_listener(port, &vaddr);
- listener->active = 1;
- listener->hidden = is_hidden;
- listener->server = is_server;
+ memcpy(&listener->flags, flags, sizeof(listener->flags));
+ FlagSet(&listener->flags, LISTEN_ACTIVE);
if (mask)
ipmask_parse(mask, &listener->mask, &listener->mask_bits);
else
listener->mask_bits = 0;
if (listener->fd >= 0) {
- /* If the listener is already open, do not try to re-open. */
+ /* If the listener is already open, do not try to re-open.
+ * Only update the socket options.
+ */
+ set_listener_options(listener, listener->fd);
}
else if (inetport(listener)) {
listener->next = ListenerPollList;
{
struct Listener* listener;
for (listener = ListenerPollList; listener; listener = listener->next)
- listener->active = 0;
+ FlagClr(&listener->flags, LISTEN_ACTIVE);
}
/** Close a single listener.
*/
for (listener = ListenerPollList; listener; listener = listener_next) {
listener_next = listener->next;
- if (0 == listener->active && 0 == listener->ref_count)
+ if (!listener_active(listener) && 0 == listener->ref_count)
close_listener(listener);
}
}
{
assert(0 != listener);
assert(0 < listener->ref_count);
- if (0 == --listener->ref_count && !listener->active)
+ if (0 == --listener->ref_count && !listener_active(listener))
close_listener(listener);
}
* to accept(), because it makes sense to clear our the
* socket's queue as fast as possible.
*/
- if (!listener->active)
+ if (!listener_active(listener))
{
++ServerStats->is_ref;
send(fd, "ERROR :Use another port\r\n", 25, 0);
if (EmptyString(who))
who = "unknown";
- if (last_notice + 20 < CurrentTime) {
- /*
- * pace error messages so opers don't get flooded by transients
- */
- sendto_opmask_butone(0, SNO_OLDSNO, text, who, errmsg);
- last_notice = CurrentTime;
- }
+ sendto_opmask_butone_ratelimited(0, SNO_OLDSNO, &last_notice, text, who, errmsg);
log_write(LS_SOCKET, L_ERROR, 0, text, who, errmsg);
errno = errtmp;
}
*/
os_disable_options(fd);
- if (listener->server)
+ if (listener_server(listener))
{
new_client = make_client(0, STAT_UNKNOWN_SERVER);
}
projects / ircu2.10.12-pk.git / commitdiff