#include "uping.h"
#include "version.h"
-#include <arpa/inet.h>
-#include <assert.h>
+/* #include <assert.h> -- Now using assert in ircd_log.h */
#include <errno.h>
#include <fcntl.h>
#include <netdb.h>
#include <sys/utsname.h>
#include <unistd.h>
-#ifdef USE_POLL
-#include <sys/poll.h>
-#endif /* USE_POLL */
-
/** Array of my own clients, indexed by file descriptor. */
struct Client* LocalClientArray[MAXCONNECTIONS];
/** Maximum file descriptor in current use. */
int HighestFd = -1;
-/** Default local address for outbound connections. */
-struct irc_sockaddr VirtualHost;
+/** Default local address for outbound IPv4 connections. */
+struct irc_sockaddr VirtualHost_v4;
+/** Default local address for outbound IPv6 connections. */
+struct irc_sockaddr VirtualHost_v6;
/** Temporary buffer for reading data from a peer. */
static char readbuf[SERVER_TCP_WINDOW];
static void client_sock_callback(struct Event* ev);
static void client_timer_callback(struct Event* ev);
-#if !defined(USE_POLL)
-#if FD_SETSIZE < (MAXCONNECTIONS + 4)
-/*
- * Sanity check
- *
- * All operating systems work when MAXCONNECTIONS <= 252.
- * Most operating systems work when MAXCONNECTIONS <= 1020 and FD_SETSIZE is
- * updated correctly in the system headers (on BSD systems our sys.h has
- * defined FD_SETSIZE to MAXCONNECTIONS+4 before including the system's headers
- * but sys/types.h might have abruptly redefined it so the check is still
- * done), you might already need to recompile your kernel.
- * For larger FD_SETSIZE your milage may vary (kernel patches may be needed).
- * The check is _NOT_ done if we will not use FD_SETS at all (USE_POLL)
- */
-#error "FD_SETSIZE is too small or MAXCONNECTIONS too large."
-#endif
-#endif
-
/*
* Cannot use perror() within daemon. stderr is closed in
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;
}
* @param vptr The struct ConfItem representing the Connect block.
* @param hp A pointer to the DNS lookup results (NULL on failure).
*/
-static void connect_dns_callback(void* vptr, struct DNSReply* hp)
+static void connect_dns_callback(void* vptr, const struct irc_in_addr *addr, const char *h_name)
{
struct ConfItem* aconf = (struct ConfItem*) vptr;
assert(aconf);
aconf->dns_pending = 0;
- if (hp) {
- memcpy(&aconf->address, &hp->addr, sizeof(aconf->address));
- MyFree(hp);
+ if (addr) {
+ memcpy(&aconf->address, addr, sizeof(aconf->address));
connect_server(aconf, 0);
}
else
void close_connections(int close_stderr)
{
int i;
- close(0);
- close(1);
if (close_stderr)
+ {
+ close(0);
+ close(1);
close(2);
+ }
for (i = 3; i < MAXCONNECTIONS; ++i)
close(i);
}
if (0 == limit)
return 1;
if (limit < 0) {
- fprintf(stderr, "error setting max fd's to %d\n", limit);
+ fprintf(stderr, "error setting max fds to %d: %s\n", limit, strerror(errno));
}
else if (limit > 0) {
fprintf(stderr, "ircd fd table too big\nHard Limit: %d IRC max: %d\n",
{
const struct irc_sockaddr *local;
IOResult result;
+ int family = 0;
+
assert(0 != aconf);
assert(0 != cptr);
/*
*/
if (irc_in_addr_valid(&aconf->origin.addr))
local = &aconf->origin;
- else
- local = &VirtualHost;
- cli_fd(cptr) = os_socket(local, SOCK_STREAM, cli_name(cptr));
+ else if (irc_in_addr_is_ipv4(&aconf->address.addr)) {
+ local = &VirtualHost_v4;
+ family = AF_INET;
+ } else
+ local = &VirtualHost_v6;
+ cli_fd(cptr) = os_socket(local, SOCK_STREAM, cli_name(cptr), family);
if (cli_fd(cptr) < 0)
return 0;
cli_fd(cptr) = -1;
return 0;
}
+ /*
+ * Set the TOS bits - this is nonfatal if it doesn't stick.
+ */
+ if (!os_set_tos(cli_fd(cptr), FEAT_TOS_SERVER)) {
+ report_error(TOS_ERROR_MSG, cli_name(cptr), errno);
+ }
if ((result = os_connect_nonb(cli_fd(cptr), &aconf->address)) == IO_FAILURE) {
cli_error(cptr) = errno;
report_error(CONNECT_ERROR_MSG, cli_name(cptr), errno);
cli_sendB(cptr) += bytes_written;
cli_sendB(&me) += bytes_written;
- if (cli_sendB(cptr) > 1023) {
- cli_sendK(cptr) += (cli_sendB(cptr) >> 10);
- cli_sendB(cptr) &= 0x03ff; /* 2^10 = 1024, 3ff = 1023 */
- }
- if (cli_sendB(&me) > 1023) {
- cli_sendK(&me) += (cli_sendB(&me) >> 10);
- cli_sendB(&me) &= 0x03ff;
- }
- /*
- * XXX - hrmm.. set blocked here? the socket didn't
- * say it was blocked
- */
+ /* A partial write implies that future writes will block. */
if (bytes_written < bytes_count)
SetFlag(cptr, FLAG_BLOCKED);
break;
return bytes_written;
}
-/** Free the client's DNS reply, if any.
- * @param cptr Client to operate on.
- */
-void release_dns_reply(struct Client* cptr)
-{
- assert(0 != cptr);
- assert(MyConnect(cptr));
-
- if (cli_dns_reply(cptr)) {
- MyFree(cli_dns_reply(cptr)->h_name);
- MyFree(cli_dns_reply(cptr));
- cli_dns_reply(cptr) = 0;
- }
-}
-
/** Complete non-blocking connect()-sequence. Check access and
* terminate connection, if trouble detected.
- * @param cptr Client to which we have connected, with all Confitem structs attached.
+ * @param cptr Client to which we have connected, with all ConfItem structs attached.
* @return Zero on failure (caller should exit_client()), non-zero on success.
*/
static int completed_connection(struct Client* cptr)
* Make us timeout after twice the timeout for DNS look ups
*/
cli_lasttime(cptr) = CurrentTime;
- SetFlag(cptr, FLAG_PINGSENT);
+ ClearPingSent(cptr);
- sendrawto_one(cptr, MSG_SERVER " %s 1 %Tu %Tu J%s %s%s +%s :%s",
+ sendrawto_one(cptr, MSG_SERVER " %s 1 %Tu %Tu J%s %s%s +%s6 :%s",
cli_name(&me), cli_serv(&me)->timestamp, newts,
MAJOR_PROTOCOL, NumServCap(&me),
feature_bool(FEAT_HUB) ? "h" : "", cli_info(&me));
ServerStats->is_sv++;
ServerStats->is_sbs += cli_sendB(cptr);
ServerStats->is_sbr += cli_receiveB(cptr);
- ServerStats->is_sks += cli_sendK(cptr);
- ServerStats->is_skr += cli_receiveK(cptr);
ServerStats->is_sti += CurrentTime - cli_firsttime(cptr);
- if (ServerStats->is_sbs > 1023) {
- ServerStats->is_sks += (ServerStats->is_sbs >> 10);
- ServerStats->is_sbs &= 0x3ff;
- }
- if (ServerStats->is_sbr > 1023) {
- ServerStats->is_skr += (ServerStats->is_sbr >> 10);
- ServerStats->is_sbr &= 0x3ff;
- }
/*
* If the connection has been up for a long amount of time, schedule
* a 'quick' reconnect, else reset the next-connect cycle.
*/
if ((aconf = find_conf_exact(cli_name(cptr), cptr, CONF_SERVER))) {
/*
- * Reschedule a faster reconnect, if this was a automaticly
+ * Reschedule a faster reconnect, if this was a automatically
* connected configuration entry. (Note that if we have had
* a rehash in between, the status has been changed to
* CONF_ILLEGAL). But only do this if it was a "good" link.
ServerStats->is_cl++;
ServerStats->is_cbs += cli_sendB(cptr);
ServerStats->is_cbr += cli_receiveB(cptr);
- ServerStats->is_cks += cli_sendK(cptr);
- ServerStats->is_ckr += cli_receiveK(cptr);
ServerStats->is_cti += CurrentTime - cli_firsttime(cptr);
- if (ServerStats->is_cbs > 1023) {
- ServerStats->is_cks += (ServerStats->is_cbs >> 10);
- ServerStats->is_cbs &= 0x3ff;
- }
- if (ServerStats->is_cbr > 1023) {
- ServerStats->is_ckr += (ServerStats->is_cbr >> 10);
- ServerStats->is_cbr &= 0x3ff;
- }
}
else
ServerStats->is_ni++;
*/
os_disable_options(fd);
- /*
- * Add this local client to the IPcheck registry.
- *
- * If they're throttled, murder them, but tell them why first.
- */
- if (!IPcheck_local_connect(&addr.addr, &next_target) && !listener->server)
+ if (listener_server(listener))
{
- ++ServerStats->is_ref;
- write(fd, throttle_message, strlen(throttle_message));
- close(fd);
- return;
+ new_client = make_client(0, STAT_UNKNOWN_SERVER);
+ }
+ else
+ {
+ /*
+ * Add this local client to the IPcheck registry.
+ *
+ * If they're throttled, murder them, but tell them why first.
+ */
+ if (!IPcheck_local_connect(&addr.addr, &next_target))
+ {
+ ++ServerStats->is_ref;
+ write(fd, throttle_message, strlen(throttle_message));
+ close(fd);
+ return;
+ }
+ new_client = make_client(0, STAT_UNKNOWN_USER);
+ SetIPChecked(new_client);
}
-
- new_client = make_client(0, ((listener->server) ?
- STAT_UNKNOWN_SERVER : STAT_UNKNOWN_USER));
/*
* Copy ascii address to 'sockhost' just in case. Then we have something
* valid to put into error messages...
*/
- SetIPChecked(new_client);
ircd_ntoa_r(cli_sock_ip(new_client), &addr.addr);
strcpy(cli_sockhost(new_client), cli_sock_ip(new_client));
memcpy(&cli_ip(new_client), &addr.addr, sizeof(cli_ip(new_client)));
case IO_SUCCESS:
if (length)
{
- if (!IsServer(cptr))
- cli_lasttime(cptr) = CurrentTime;
+ cli_lasttime(cptr) = CurrentTime;
+ ClearPingSent(cptr);
+ ClrFlag(cptr, FLAG_NONL);
if (cli_lasttime(cptr) > cli_since(cptr))
cli_since(cptr) = cli_lasttime(cptr);
- ClrFlag(cptr, FLAG_PINGSENT);
- ClrFlag(cptr, FLAG_NONL);
}
break;
case IO_BLOCKED:
break;
case IO_FAILURE:
cli_error(cptr) = errno;
- /* SetFlag(cpt, FLAG_DEADSOCKET); */
+ /* SetFlag(cptr, FLAG_DEADSOCKET); */
return 0;
}
}
if (DBufLength(&(cli_recvQ(cptr))) < 510)
SetFlag(cptr, FLAG_NONL);
else
+ {
+ /* More than 512 bytes in the line - drop the input and yell
+ * at the client.
+ */
DBufClear(&(cli_recvQ(cptr)));
+ send_reply(cptr, ERR_INPUTTOOLONG);
+ }
}
else if (client_dopacket(cptr, dolen) == CPTR_KILLED)
return CPTR_KILLED;
}
}
/*
- * If we dont know the IP# for this host and it is a hostname and
+ * If we don't know the IP# for this host and it is a hostname and
* not a ip# string, then try and find the appropriate host record.
*/
if (!irc_in_addr_valid(&aconf->address.addr)
&& !ircd_aton(&aconf->address.addr, aconf->host)) {
char buf[HOSTLEN + 1];
- struct DNSQuery query;
- query.vptr = aconf;
- query.callback = connect_dns_callback;
host_from_uh(buf, aconf->host, HOSTLEN);
- buf[HOSTLEN] = '\0';
-
- gethost_byname(buf, &query);
+ gethost_byname(buf, connect_dns_callback, aconf);
aconf->dns_pending = 1;
return 0;
}
if (!find_conf_byhost(cli_confs(cptr), aconf->host, CONF_SERVER)) {
sendto_opmask_butone(0, SNO_OLDSNO, "Host %s is not enabled for "
- "connecting: no C-line", aconf->name);
+ "connecting: no Connect block", aconf->name);
if (by && IsUser(by) && !MyUser(by)) {
sendcmdto_one(&me, CMD_NOTICE, by, "%C :Connect to host %s failed: no "
- "C-line", by, aconf->name);
+ "Connect block", by, aconf->name);
}
det_confs_butmask(cptr, 0);
free_client(cptr);
cli_error(cptr) = ev_data(ev);
if (s_state(&(con_socket(con))) == SS_CONNECTING) {
completed_connection(cptr);
+ /* for some reason, the os_get_sockerr() in completed_connect()
+ * can return 0 even when ev_data(ev) indicates a real error, so
+ * re-assign the client error here.
+ */
+ cli_error(cptr) = ev_data(ev);
break;
}
/*FALLTHROUGH*/
projects / ircu2.10.12-pk.git / blobdiff