*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 1, or (at your option)
+ * the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * $Id$
*/
+/** @file
+ * @brief Implementation of Gline manipulation functions.
+ * @version $Id$
+ */
+#include "config.h"
+
#include "gline.h"
#include "client.h"
#include "ircd.h"
#include "ircd_alloc.h"
+#include "ircd_features.h"
+#include "ircd_log.h"
#include "ircd_reply.h"
+#include "ircd_snprintf.h"
#include "ircd_string.h"
#include "match.h"
#include "numeric.h"
#include "s_bsd.h"
#include "s_debug.h"
#include "s_misc.h"
+#include "s_stats.h"
#include "send.h"
#include "struct.h"
-#include "support.h"
#include "msg.h"
#include "numnicks.h"
#include "numeric.h"
#include "sys.h" /* FALSE bleah */
+#include "whocmds.h"
-#include <assert.h>
+/* #include <assert.h> -- Now using assert in ircd_log.h */
#include <string.h>
#include <stdio.h>
+#include <stdlib.h>
#include <arpa/inet.h> /* for inet_ntoa */
+#define CHECK_APPROVED 0 /**< Mask is acceptable */
+#define CHECK_OVERRIDABLE 1 /**< Mask is acceptable, but not by default */
+#define CHECK_REJECTED 2 /**< Mask is totally unacceptable */
+
+#define MASK_WILD_0 0x01 /**< Wildcards in the last position */
+#define MASK_WILD_1 0x02 /**< Wildcards in the next-to-last position */
+
+#define MASK_WILD_MASK 0x03 /**< Mask out the positional wildcards */
+
+#define MASK_WILDS 0x10 /**< Mask contains wildcards */
+#define MASK_IP 0x20 /**< Mask is an IP address */
+#define MASK_HALT 0x40 /**< Finished processing mask */
+
+/** List of user G-lines. */
struct Gline* GlobalGlineList = 0;
+/** List of BadChan G-lines. */
struct Gline* BadChanGlineList = 0;
+/** Find canonical user and host for a string.
+ * If \a userhost starts with '$', assign \a userhost to *user_p and NULL to *host_p.
+ * Otherwise, if \a userhost contains '@', assign the earlier part of it to *user_p and the rest to *host_p.
+ * Otherwise, assign \a def_user to *user_p and \a userhost to *host_p.
+ *
+ * @param[in] userhost Input string from user.
+ * @param[out] user_p Gets pointer to user (or channel/realname) part of hostmask.
+ * @param[out] host_p Gets point to host part of hostmask (may be assigned NULL).
+ * @param[in] def_user Default value for user part.
+ */
static void
canon_userhost(char *userhost, char **user_p, char **host_p, char *def_user)
{
char *tmp;
+ if (*userhost == '$') {
+ *user_p = userhost;
+ *host_p = NULL;
+ return;
+ }
+
if (!(tmp = strchr(userhost, '@'))) {
*user_p = def_user;
*host_p = userhost;
}
}
+/** Create a Gline structure.
+ * @param[in] user User part of mask.
+ * @param[in] host Host part of mask (NULL if not applicable).
+ * @param[in] reason Reason for G-line.
+ * @param[in] expire Expiration timestamp.
+ * @param[in] lastmod Last modification timestamp.
+ * @param[in] flags Bitwise combination of GLINE_* bits.
+ * @return Newly allocated G-line.
+ */
static struct Gline *
-make_gline(char *userhost, char *reason, time_t expire, time_t lastmod,
+make_gline(char *user, char *host, char *reason, time_t expire, time_t lastmod,
unsigned int flags)
{
struct Gline *gline, *sgline, *after = 0;
- char *user, *host;
if (!(flags & GLINE_BADCHAN)) { /* search for overlapping glines first */
- canon_userhost(userhost, &user, &host, "*"); /* find user and host */
for (gline = GlobalGlineList; gline; gline = sgline) {
sgline = gline->gl_next;
if (gline->gl_expire <= CurrentTime)
gline_free(gline);
- else if ((gline->gl_flags & GLINE_LOCAL) != (flags & GLINE_LOCAL))
+ else if (((gline->gl_flags & GLINE_LOCAL) != (flags & GLINE_LOCAL)) ||
+ (gline->gl_host && !host) || (!gline->gl_host && host))
continue;
- else if (!mmatch(gline->gl_user, user) && /* gline contains new mask */
- !mmatch(gline->gl_host, host)) {
+ else if (!mmatch(gline->gl_user, user) /* gline contains new mask */
+ && (gline->gl_host == NULL || !mmatch(gline->gl_host, host))) {
if (expire <= gline->gl_expire) /* will expire before wider gline */
return 0;
else
after = gline; /* stick new gline after this one */
- } else if (!mmatch(user, gline->gl_user) && /* new mask contains gline */
- !mmatch(host, gline->gl_host) &&
- gline->gl_expire <= expire) /* gline expires before new one */
+ } else if (!mmatch(user, gline->gl_user) /* new mask contains gline */
+ && (gline->gl_host==NULL || !mmatch(host, gline->gl_host))
+ && gline->gl_expire <= expire) /* old expires before new */
gline_free(gline); /* save some memory */
}
}
gline->gl_flags = flags & GLINE_MASK;
if (flags & GLINE_BADCHAN) { /* set a BADCHAN gline */
- DupString(gline->gl_user, userhost); /* first, remember channel */
+ DupString(gline->gl_user, user); /* first, remember channel */
gline->gl_host = 0;
gline->gl_next = BadChanGlineList; /* then link it into list */
BadChanGlineList = gline;
} else {
DupString(gline->gl_user, user); /* remember them... */
- DupString(gline->gl_host, host);
-
- if (check_if_ipmask(host)) { /* mark if it's an IP mask */
- int class;
- char ipname[16];
- int ad[4] = { 0 };
- int bits2 = 0;
-
- class = sscanf(host,"%d.%d.%d.%d/%d",
- &ad[0],&ad[1],&ad[2],&ad[3], &bits2);
- if (class!=5) {
- gline->bits=class*8;
- }
- else {
- gline->bits=bits2;
- }
- sprintf_irc(ipname,"%d.%d.%d.%d",ad[0],ad[1],ad[2],ad[3]);
- gline->ipnum.s_addr = inet_addr(ipname);
- Debug((DEBUG_DEBUG,"IP gline: %08x/%i",gline->ipnum.s_addr,gline->bits));
+ if (*user != '$')
+ DupString(gline->gl_host, host);
+ else
+ gline->gl_host = NULL;
+
+ if (*user != '$' && ipmask_parse(host, &gline->gl_addr, &gline->gl_bits)) {
+ Debug((DEBUG_DEBUG,"IP gline: %s/%u", ircd_ntoa(&gline->gl_addr), gline->gl_bits));
gline->gl_flags |= GLINE_IPMASK;
}
return gline;
}
+/** Check local clients against a new G-line.
+ * If the G-line is inactive or a badchan, return immediately.
+ * Otherwise, if any users match it, disconnect them.
+ * @param[in] cptr Peer connect that sent the G-line.
+ * @param[in] sptr Client that originated the G-line.
+ * @param[in] gline New G-line to check.
+ * @return Zero, unless \a sptr G-lined himself, in which case CPTR_KILLED.
+ */
static int
do_gline(struct Client *cptr, struct Client *sptr, struct Gline *gline)
{
struct Client *acptr;
int fd, retval = 0, tval;
+ if (GlineIsBadChan(gline)) /* no action taken on badchan glines */
+ return 0;
if (!GlineIsActive(gline)) /* no action taken on inactive glines */
return 0;
* get the users!
*/
if ((acptr = LocalClientArray[fd])) {
- if (!acptr->user)
+ if (!cli_user(acptr))
continue;
-
- if (acptr->user->username &&
- match(gline->gl_user, acptr->user->username) == 0)
- continue;
-
- if (GlineIsIpMask(gline)) {
- Debug((DEBUG_DEBUG,"IP gline: %08x %08x/%i",cptr->ip.s_addr,gline->ipnum.s_addr,gline->bits));
- if ((cptr->ip.s_addr & NETMASK(gline->bits)) != gline->ipnum.s_addr)
- continue;
- }
- else {
- if (match(gline->gl_host, acptr->sock_ip) != 0)
+
+ if (GlineIsRealName(gline)) { /* Realname Gline */
+ Debug((DEBUG_DEBUG,"Realname Gline: %s %s",(cli_info(acptr)),
+ gline->gl_user+2));
+ if (match(gline->gl_user+2, cli_info(acptr)) != 0)
+ continue;
+ Debug((DEBUG_DEBUG,"Matched!"));
+ } else { /* Host/IP gline */
+ if (cli_user(acptr)->username &&
+ match(gline->gl_user, (cli_user(acptr))->username) != 0)
continue;
+
+ if (GlineIsIpMask(gline)) {
+#ifdef DEBUGMODE
+ char tbuf1[SOCKIPLEN], tbuf2[SOCKIPLEN];
+ Debug((DEBUG_DEBUG,"IP gline: %s %s/%u", ircd_ntoa_r(tbuf1, &cli_ip(cptr)), ircd_ntoa_r(tbuf2, &gline->gl_addr), gline->gl_bits));
+#endif
+ if (!ipmask_check(&cli_ip(cptr), &gline->gl_addr, gline->gl_bits))
+ continue;
+ }
+ else {
+ if (match(gline->gl_host, cli_sockhost(acptr)) != 0)
+ continue;
+ }
}
/* ok, here's one that got G-lined */
/* let the ops know about it */
sendto_opmask_butone(0, SNO_GLINE, "G-line active for %s",
- get_client_name(acptr, FALSE));
+ get_client_name(acptr, TRUE));
/* and get rid of him */
if ((tval = exit_client_msg(cptr, acptr, &me, "G-lined (%s)",
return retval;
}
-static void
-propagate_gline(struct Client *cptr, struct Client *sptr, struct Gline *gline)
+/**
+ * Implements the mask checking applied to local G-lines.
+ * Basically, host masks must have a minimum of two non-wild domain
+ * fields, and IP masks must have a minimum of 16 bits. If the mask
+ * has even one wild-card, OVERRIDABLE is returned, assuming the other
+ * check doesn't fail.
+ * @param[in] mask G-line mask to check.
+ * @return One of CHECK_REJECTED, CHECK_OVERRIDABLE, or CHECK_APPROVED.
+ */
+static int
+gline_checkmask(char *mask)
+{
+ unsigned int flags = MASK_IP;
+ unsigned int dots = 0;
+ unsigned int ipmask = 0;
+
+ for (; *mask; mask++) { /* go through given mask */
+ if (*mask == '.') { /* it's a separator; advance positional wilds */
+ flags = (flags & ~MASK_WILD_MASK) | ((flags << 1) & MASK_WILD_MASK);
+ dots++;
+
+ if ((flags & (MASK_IP | MASK_WILDS)) == MASK_IP)
+ ipmask += 8; /* It's an IP with no wilds, count bits */
+ } else if (*mask == '*' || *mask == '?')
+ flags |= MASK_WILD_0 | MASK_WILDS; /* found a wildcard */
+ else if (*mask == '/') { /* n.n.n.n/n notation; parse bit specifier */
+ ++mask;
+ ipmask = strtoul(mask, &mask, 10);
+
+ /* sanity-check to date */
+ if (*mask || (flags & (MASK_WILDS | MASK_IP)) != MASK_IP)
+ return CHECK_REJECTED;
+ if (!dots) {
+ if (ipmask > 128)
+ return CHECK_REJECTED;
+ if (ipmask < 128)
+ flags |= MASK_WILDS;
+ } else {
+ if (dots != 3 || ipmask > 3)
+ return CHECK_REJECTED;
+ if (ipmask < 32)
+ flags |= MASK_WILDS;
+ }
+
+ flags |= MASK_HALT; /* Halt the ipmask calculation */
+ break; /* get out of the loop */
+ } else if (!IsIP6Char(*mask)) {
+ flags &= ~MASK_IP; /* not an IP anymore! */
+ ipmask = 0;
+ }
+ }
+
+ /* Sanity-check quads */
+ if (dots > 3 || (!(flags & MASK_WILDS) && dots < 3)) {
+ flags &= ~MASK_IP;
+ ipmask = 0;
+ }
+
+ /* update bit count if necessary */
+ if ((flags & (MASK_IP | MASK_WILDS | MASK_HALT)) == MASK_IP)
+ ipmask += 8;
+
+ /* Check to see that it's not too wide of a mask */
+ if (flags & MASK_WILDS &&
+ ((!(flags & MASK_IP) && (dots < 2 || flags & MASK_WILD_MASK)) ||
+ (flags & MASK_IP && ipmask < 16)))
+ return CHECK_REJECTED; /* to wide, reject */
+
+ /* Ok, it's approved; require override if it has wildcards, though */
+ return flags & MASK_WILDS ? CHECK_OVERRIDABLE : CHECK_APPROVED;
+}
+
+/** Forward a G-line to other servers.
+ * @param[in] cptr Client that sent us the G-line.
+ * @param[in] sptr Client that originated the G-line.
+ * @param[in] gline G-line to forward.
+ * @return Zero.
+ */
+int
+gline_propagate(struct Client *cptr, struct Client *sptr, struct Gline *gline)
{
if (GlineIsLocal(gline) || (IsUser(sptr) && !gline->gl_lastmod))
- return;
+ return 0;
if (gline->gl_lastmod)
sendcmdto_serv_butone(sptr, CMD_GLINE, cptr, "* %c%s%s%s %Tu %Tu :%s",
GlineIsRemActive(gline) ? '+' : '-', gline->gl_user,
- GlineIsBadChan(gline) ? "" : "@",
- GlineIsBadChan(gline) ? "" : gline->gl_host,
+ gline->gl_host ? "@" : "",
+ gline->gl_host ? gline->gl_host : "",
gline->gl_expire - CurrentTime, gline->gl_lastmod,
gline->gl_reason);
else
- sendcmdto_serv_butone(sptr, CMD_GLINE, cptr, "* %c%s%s%s %Tu :%s",
- GlineIsRemActive(gline) ? '+' : '-', gline->gl_user,
- GlineIsBadChan(gline) ? "" : "@",
- GlineIsBadChan(gline) ? "" : gline->gl_host,
+ sendcmdto_serv_butone(sptr, CMD_GLINE, cptr,
+ (GlineIsRemActive(gline) ?
+ "* +%s%s%s %Tu :%s" : "* -%s%s%s"),
+ gline->gl_user,
+ gline->gl_host ? "@" : "",
+ gline->gl_host ? gline->gl_host : "",
gline->gl_expire - CurrentTime, gline->gl_reason);
+
+ return 0;
}
-int
+/** Create a new G-line and add it to global lists.
+ * \a userhost may be in one of four forms:
+ * \li A channel name, to add a BadChan.
+ * \li A string starting with $R and followed by a mask to match against their realname.
+ * \li A user\@IP mask (user\@ part optional) to create an IP-based ban.
+ * \li A user\@host mask (user\@ part optional) to create a hostname ban.
+ *
+ * @param[in] cptr Client that sent us the G-line.
+ * @param[in] sptr Client that originated the G-line.
+ * @param[in] userhost Text mask for the G-line.
+ * @param[in] reason Reason for G-line.
+ * @param[in] expire Duration of G-line in seconds.
+ * @param[in] lastmod Last modification time of G-line.
+ * @param[in] flags Bitwise combination of GLINE_* flags.
+ * @return Zero or CPTR_KILLED, depending on whether \a sptr is suicidal.
+ */
+int
gline_add(struct Client *cptr, struct Client *sptr, char *userhost,
char *reason, time_t expire, time_t lastmod, unsigned int flags)
{
struct Gline *agline;
+ char uhmask[USERLEN + HOSTLEN + 2];
+ char *user, *host;
+ int tmp;
assert(0 != userhost);
assert(0 != reason);
+ if (*userhost == '#' || *userhost == '&') {
+ if ((flags & GLINE_LOCAL) && !HasPriv(sptr, PRIV_LOCAL_BADCHAN))
+ return send_reply(sptr, ERR_NOPRIVILEGES);
+
+ flags |= GLINE_BADCHAN;
+ user = userhost;
+ host = 0;
+ } else if (*userhost == '$') {
+ switch (*userhost == '$' ? userhost[1] : userhost[3]) {
+ case 'R': flags |= GLINE_REALNAME; break;
+ default:
+ /* uh, what to do here? */
+ /* The answer, my dear Watson, is we throw a protocol_violation()
+ -- hikari */
+ return protocol_violation(sptr,"%s has been smoking the sweet leaf and sent me a whacky gline",cli_name(sptr));
+ break;
+ }
+ user = (*userhost =='$' ? userhost : userhost+2);
+ host = 0;
+ } else {
+ canon_userhost(userhost, &user, &host, "*");
+ if (sizeof(uhmask) <
+ ircd_snprintf(0, uhmask, sizeof(uhmask), "%s@%s", user, host))
+ return send_reply(sptr, ERR_LONGMASK);
+ else if (MyUser(sptr) || (IsUser(sptr) && flags & GLINE_LOCAL)) {
+ switch (gline_checkmask(host)) {
+ case CHECK_OVERRIDABLE: /* oper overrided restriction */
+ if (flags & GLINE_OPERFORCE)
+ break;
+ /*FALLTHROUGH*/
+ case CHECK_REJECTED:
+ return send_reply(sptr, ERR_MASKTOOWIDE, uhmask);
+ break;
+ }
+
+ if ((tmp = count_users(uhmask)) >=
+ feature_int(FEAT_GLINEMAXUSERCOUNT) && !(flags & GLINE_OPERFORCE))
+ return send_reply(sptr, ERR_TOOMANYUSERS, tmp);
+ }
+ }
+
/*
* You cannot set a negative (or zero) expire time, nor can you set an
* expiration time for greater than GLINE_MAX_EXPIRE.
expire += CurrentTime; /* convert from lifetime to timestamp */
- /* NO_OLD_GLINE allows *@#channel to work correctly */
- if (*userhost == '#' || *userhost == '&' || *userhost == '+'
-# ifndef NO_OLD_GLINE
- || userhost[2] == '#' || userhost[2] == '&' || userhost[2] == '+'
-# endif /* OLD_GLINE */
- ) {
-# ifndef LOCAL_BADCHAN
- if (flags & GLINE_LOCAL)
- return 0;
-# endif
- flags |= GLINE_BADCHAN;
- }
-
/* Inform ops... */
- sendto_opmask_butone(0, SNO_GLINE, "%s adding %s %s for %s, expiring at "
- "%Tu: %s",
- IsServer(sptr) ? sptr->name : sptr->user->server->name,
- flags & GLINE_LOCAL ? "local" : "global",
- flags & GLINE_BADCHAN ? "BADCHAN" : "GLINE", userhost,
+ sendto_opmask_butone(0, ircd_strncmp(reason, "AUTO", 4) ? SNO_GLINE :
+ SNO_AUTO, "%s adding %s %s for %s%s%s, expiring at "
+ "%Tu: %s",
+ (feature_bool(FEAT_HIS_SNOTICES) || IsServer(sptr)) ?
+ cli_name(sptr) :
+ cli_name((cli_user(sptr))->server),
+ (flags & GLINE_LOCAL) ? "local" : "global",
+ (flags & GLINE_BADCHAN) ? "BADCHAN" : "GLINE", user,
+ (flags & (GLINE_BADCHAN|GLINE_REALNAME)) ? "" : "@",
+ (flags & (GLINE_BADCHAN|GLINE_REALNAME)) ? "" : host,
expire + TSoffset, reason);
-#ifdef GPATH
/* and log it */
- write_log(GPATH, "# %Tu %C adding %s %s for %s, expiring at %Tu: %s\n",
- TStime(), sptr, flags & GLINE_LOCAL ? "local" : "global",
- flags & GLINE_BADCHAN ? "BADCHAN" : "GLINE", userhost,
+ log_write(LS_GLINE, L_INFO, LOG_NOSNOTICE,
+ "%#C adding %s %s for %s%s%s, expiring at %Tu: %s", sptr,
+ flags & GLINE_LOCAL ? "local" : "global",
+ flags & GLINE_BADCHAN ? "BADCHAN" : "GLINE", user,
+ flags & (GLINE_BADCHAN|GLINE_REALNAME) ? "" : "@",
+ flags & (GLINE_BADCHAN|GLINE_REALNAME) ? "" : host,
expire + TSoffset, reason);
-#endif /* GPATH */
/* make the gline */
- agline = make_gline(userhost, reason, expire, lastmod, flags);
+ agline = make_gline(user, host, reason, expire, lastmod, flags);
if (!agline) /* if it overlapped, silently return */
return 0;
- propagate_gline(cptr, sptr, agline);
-
- if (GlineIsBadChan(agline))
- return 0;
-
-#ifdef GPATH
- /* this can be inserted into the conf */
- write_log(GPATH, "%c:%s:%s:%s\n", GlineIsIpMask(agline) ? 'k' : 'K',
- GlineHost(agline), GlineReason(agline), GlineUser(agline));
-#endif /* GPATH */
+ gline_propagate(cptr, sptr, agline);
return do_gline(cptr, sptr, agline); /* knock off users if necessary */
}
+/** Activate a currently inactive G-line.
+ * @param[in] cptr Peer that told us to activate the G-line.
+ * @param[in] sptr Client that originally thought it was a good idea.
+ * @param[in] gline G-line to activate.
+ * @param[in] lastmod New value for last modification timestamp.
+ * @param[in] flags 0 if the activation should be propagated, GLINE_LOCAL if not.
+ * @return Zero, unless \a sptr had a death wish (in which case CPTR_KILLED).
+ */
int
gline_activate(struct Client *cptr, struct Client *sptr, struct Gline *gline,
time_t lastmod, unsigned int flags)
else {
gline->gl_flags |= GLINE_ACTIVE;
- if (gline->gl_lastmod >= lastmod) /* force lastmod to increase */
- gline->gl_lastmod++;
- else
- gline->gl_lastmod = lastmod;
+ if (gline->gl_lastmod) {
+ if (gline->gl_lastmod >= lastmod) /* force lastmod to increase */
+ gline->gl_lastmod++;
+ else
+ gline->gl_lastmod = lastmod;
+ }
}
if ((saveflags & GLINE_ACTMASK) == GLINE_ACTIVE)
/* Inform ops and log it */
sendto_opmask_butone(0, SNO_GLINE, "%s activating global %s for %s%s%s, "
- "expiring at %Tu: %s",
- IsServer(sptr) ? sptr->name : sptr->user->server->name,
- GlineIsBadChan(gline) ? "BADCHAN" : "GLINE",
- gline->gl_user, GlineIsBadChan(gline) ? "" : "@",
- GlineIsBadChan(gline) ? "" : gline->gl_host,
- gline->gl_expire + TSoffset, gline->gl_reason);
-
-#ifdef GPATH
- write_log(GPATH, "# %Tu %C activating global %s for %s%s%s, expiring at "
- "%Tu: %s\n", TStime(), sptr,
- GlineIsBadChan(gline) ? "BADCHAN" : "GLINE",
- gline->gl_user, GlineIsBadChan(gline) ? "" : "@",
- GlineIsBadChan(gline) ? "" : gline->gl_host,
+ "expiring at %Tu: %s",
+ (feature_bool(FEAT_HIS_SNOTICES) || IsServer(sptr)) ?
+ cli_name(sptr) :
+ cli_name((cli_user(sptr))->server),
+ GlineIsBadChan(gline) ? "BADCHAN" : "GLINE",
+ gline->gl_user, gline->gl_host ? "@" : "",
+ gline->gl_host ? gline->gl_host : "",
+ gline->gl_expire + TSoffset, gline->gl_reason);
+
+ log_write(LS_GLINE, L_INFO, LOG_NOSNOTICE,
+ "%#C activating global %s for %s%s%s, expiring at %Tu: %s", sptr,
+ GlineIsBadChan(gline) ? "BADCHAN" : "GLINE", gline->gl_user,
+ gline->gl_host ? "@" : "",
+ gline->gl_host ? gline->gl_host : "",
gline->gl_expire + TSoffset, gline->gl_reason);
-#endif /* GPATH */
if (!(flags & GLINE_LOCAL)) /* don't propagate local changes */
- propagate_gline(cptr, sptr, gline);
+ gline_propagate(cptr, sptr, gline);
- return GlineIsBadChan(gline) ? 0 : do_gline(cptr, sptr, gline);
+ return do_gline(cptr, sptr, gline);
}
+/** Deactivate a G-line.
+ * @param[in] cptr Peer that gave us the message.
+ * @param[in] sptr Client that initiated the deactivation.
+ * @param[in] gline G-line to deactivate.
+ * @param[in] lastmod New value for G-line last modification timestamp.
+ * @param[in] flags GLINE_LOCAL to only deactivate locally, 0 to propagate.
+ * @return Zero.
+ */
int
gline_deactivate(struct Client *cptr, struct Client *sptr, struct Gline *gline,
time_t lastmod, unsigned int flags)
if (GlineIsLocal(gline))
msg = "removing local";
- else if (!gline->gl_lastmod && !(flags & GLINE_LOCAL))
+ else if (!gline->gl_lastmod && !(flags & GLINE_LOCAL)) {
msg = "removing global";
- else {
+ gline->gl_flags &= ~GLINE_ACTIVE; /* propagate a -<mask> */
+ } else {
msg = "deactivating global";
if (flags & GLINE_LOCAL)
else {
gline->gl_flags &= ~GLINE_ACTIVE;
- if (gline->gl_lastmod >= lastmod)
- gline->gl_lastmod++;
- else
- gline->gl_lastmod = lastmod;
+ if (gline->gl_lastmod) {
+ if (gline->gl_lastmod >= lastmod)
+ gline->gl_lastmod++;
+ else
+ gline->gl_lastmod = lastmod;
+ }
}
if ((saveflags & GLINE_ACTMASK) != GLINE_ACTIVE)
/* Inform ops and log it */
sendto_opmask_butone(0, SNO_GLINE, "%s %s %s for %s%s%s, expiring at %Tu: "
"%s",
- IsServer(sptr) ? sptr->name : sptr->user->server->name,
+ (feature_bool(FEAT_HIS_SNOTICES) || IsServer(sptr)) ?
+ cli_name(sptr) :
+ cli_name((cli_user(sptr))->server),
msg, GlineIsBadChan(gline) ? "BADCHAN" : "GLINE",
- gline->gl_user, GlineIsBadChan(gline) ? "" : "@",
- GlineIsBadChan(gline) ? "" : gline->gl_host,
+ gline->gl_user, gline->gl_host ? "@" : "",
+ gline->gl_host ? gline->gl_host : "",
gline->gl_expire + TSoffset, gline->gl_reason);
-#ifdef GPATH
- write_log(GPATH, "# %Tu %C %s %s for %s%s%s, expiring at %Tu: %s\n",
- TStime(), sptr, msg, GlineIsBadChan(gline) ? "BADCHAN" : "GLINE",
- gline->gl_user, GlineIsBadChan(gline) ? "" : "@",
- GlineIsBadChan(gline) ? "" : gline->gl_host,
+ log_write(LS_GLINE, L_INFO, LOG_NOSNOTICE,
+ "%#C %s %s for %s%s%s, expiring at %Tu: %s", sptr, msg,
+ GlineIsBadChan(gline) ? "BADCHAN" : "GLINE", gline->gl_user,
+ gline->gl_host ? "@" : "",
+ gline->gl_host ? gline->gl_host : "",
gline->gl_expire + TSoffset, gline->gl_reason);
-#endif /* GPATH */
+ if (!(flags & GLINE_LOCAL)) /* don't propagate local changes */
+ gline_propagate(cptr, sptr, gline);
+
+ /* if it's a local gline or a Uworld gline (and not locally deactivated).. */
if (GlineIsLocal(gline) || (!gline->gl_lastmod && !(flags & GLINE_LOCAL)))
- gline_free(gline);
- else if (!(flags & GLINE_LOCAL)) /* don't propagate local changes */
- propagate_gline(cptr, sptr, gline);
+ gline_free(gline); /* get rid of it */
return 0;
}
+/** Find a G-line for a particular mask, guided by certain flags.
+ * Certain bits in \a flags are interpreted specially:
+ * <dl>
+ * <dt>GLINE_ANY</dt><dd>Search both BadChans and user G-lines.</dd>
+ * <dt>GLINE_BADCHAN</dt><dd>Search BadChans.</dd>
+ * <dt>GLINE_GLOBAL</dt><dd>Only match global G-lines.</dd>
+ * <dt>GLINE_LASTMOD</dt><dd>Only match G-lines with a last modification time.</dd>
+ * <dt>GLINE_EXACT</dt><dd>Require an exact match of G-line mask.</dd>
+ * <dt>anything else</dt><dd>Search user G-lines.</dd>
+ * </dl>
+ * @param[in] userhost Mask to search for.
+ * @param[in] flags Bitwise combination of GLINE_* flags.
+ * @return First matching G-line, or NULL if none are found.
+ */
struct Gline *
gline_find(char *userhost, unsigned int flags)
{
}
if ((flags & (GLINE_BADCHAN | GLINE_ANY)) == GLINE_BADCHAN ||
- *userhost == '#' || *userhost == '&' || *userhost == '+'
-#ifndef NO_OLD_GLINE
- || userhost[2] == '#' || userhost[2] == '&' || userhost[2] == '+'
-#endif /* NO_OLD_GLINE */
- )
+ *userhost == '#' || *userhost == '&')
return 0;
DupString(t_uh, userhost);
canon_userhost(t_uh, &user, &host, 0);
+ if (BadPtr(user))
+ return 0;
+
for (gline = GlobalGlineList; gline; gline = sgline) {
sgline = gline->gl_next;
(flags & GLINE_LASTMOD && !gline->gl_lastmod))
continue;
else if (flags & GLINE_EXACT) {
- if (ircd_strcmp(gline->gl_host, host) == 0 &&
- ((!user && ircd_strcmp(gline->gl_user, "*") == 0) ||
+ if (((gline->gl_host && host && ircd_strcmp(gline->gl_host, host) == 0)
+ || (!gline->gl_host && !host)) &&
+ ((!user && ircd_strcmp(gline->gl_user, "*") == 0) ||
ircd_strcmp(gline->gl_user, user) == 0))
break;
} else {
- if (match(gline->gl_host, host) == 0 &&
+ if (((gline->gl_host && host && match(gline->gl_host, host) == 0)
+ || (!gline->gl_host && !host)) &&
((!user && ircd_strcmp(gline->gl_user, "*") == 0) ||
match(gline->gl_user, user) == 0))
break;
return gline;
}
+/** Find a matching G-line for a user.
+ * @param[in] cptr Client to compare against.
+ * @param[in] flags Bitwise combination of GLINE_GLOBAL and/or
+ * GLINE_LASTMOD to limit matches.
+ * @return Matching G-line, or NULL if none are found.
+ */
struct Gline *
gline_lookup(struct Client *cptr, unsigned int flags)
{
}
if ((flags & GLINE_GLOBAL && gline->gl_flags & GLINE_LOCAL) ||
- (flags & GLINE_LASTMOD && !gline->gl_lastmod))
+ (flags & GLINE_LASTMOD && !gline->gl_lastmod))
continue;
-
- if (match(gline->gl_user, cptr->user->username) != 0)
- continue;
-
- if (GlineIsIpMask(gline)) {
- Debug((DEBUG_DEBUG,"IP gline: %08x %08x/%i",cptr->ip.s_addr,gline->ipnum.s_addr,gline->bits));
- if ((cptr->ip.s_addr & NETMASK(gline->bits)) != gline->ipnum.s_addr)
+
+ if (GlineIsRealName(gline)) {
+ Debug((DEBUG_DEBUG,"realname gline: '%s' '%s'",gline->gl_user,cli_info(cptr)));
+ if (match(gline->gl_user+2, cli_info(cptr)) != 0)
continue;
+ if (!GlineIsActive(gline))
+ continue;
+ return gline;
}
else {
- if (match(gline->gl_host, cptr->user->host) != 0)
+ if (match(gline->gl_user, (cli_user(cptr))->username) != 0)
continue;
+
+ if (GlineIsIpMask(gline)) {
+#ifdef DEBUGMODE
+ char tbuf1[SOCKIPLEN], tbuf2[SOCKIPLEN];
+ Debug((DEBUG_DEBUG,"IP gline: %s %s/%u", ircd_ntoa_r(tbuf1, &cli_ip(cptr)), ircd_ntoa_r(tbuf2, &gline->gl_addr), gline->gl_bits));
+#endif
+ if (!ipmask_check(&cli_ip(cptr), &gline->gl_addr, gline->gl_bits))
+ continue;
+ }
+ else {
+ if (match(gline->gl_host, (cli_user(cptr))->realhost) != 0)
+ continue;
+ }
}
- return gline;
+ if (GlineIsActive(gline))
+ return gline;
}
/*
* No Glines matched
return 0;
}
+/** Delink and free a G-line.
+ * @param[in] gline G-line to free.
+ */
void
gline_free(struct Gline *gline)
{
MyFree(gline);
}
+/** Burst all known global G-lines to another server.
+ * @param[in] cptr Destination of burst.
+ */
void
gline_burst(struct Client *cptr)
{
if (gline->gl_expire <= CurrentTime) /* expire any that need expiring */
gline_free(gline);
else if (!GlineIsLocal(gline) && gline->gl_lastmod)
- sendcmdto_one(&me, CMD_GLINE, cptr, "* %c%s@%s %Tu %Tu :%s",
+ sendcmdto_one(&me, CMD_GLINE, cptr, "* %c%s%s%s %Tu %Tu :%s",
GlineIsRemActive(gline) ? '+' : '-', gline->gl_user,
- gline->gl_host, gline->gl_expire - CurrentTime,
- gline->gl_lastmod, gline->gl_reason);
+ gline->gl_host ? "@" : "",
+ gline->gl_host ? gline->gl_host : "",
+ gline->gl_expire - CurrentTime, gline->gl_lastmod,
+ gline->gl_reason);
}
for (gline = BadChanGlineList; gline; gline = sgline) { /* all glines */
}
}
+/** Send a G-line to another server.
+ * @param[in] cptr Who to inform of the G-line.
+ * @param[in] gline G-line to send.
+ * @return Zero.
+ */
int
gline_resend(struct Client *cptr, struct Gline *gline)
{
sendcmdto_one(&me, CMD_GLINE, cptr, "* %c%s%s%s %Tu %Tu :%s",
GlineIsRemActive(gline) ? '+' : '-', gline->gl_user,
- GlineIsBadChan(gline) ? "" : "@",
- GlineIsBadChan(gline) ? "" : gline->gl_host,
+ gline->gl_host ? "@" : "",
+ gline->gl_host ? gline->gl_host : "",
gline->gl_expire - CurrentTime, gline->gl_lastmod,
gline->gl_reason);
return 0;
}
+/** Display one or all G-lines to a user.
+ * If \a userhost is not NULL, only send the first matching G-line.
+ * Otherwise send the whole list.
+ * @param[in] sptr User asking for G-line list.
+ * @param[in] userhost G-line mask to search for (or NULL).
+ * @return Zero.
+ */
int
gline_list(struct Client *sptr, char *userhost)
{
/* send gline information along */
send_reply(sptr, RPL_GLIST, gline->gl_user,
- GlineIsBadChan(gline) ? "" : "@",
- GlineIsBadChan(gline) ? "" : gline->gl_host,
+ gline->gl_host ? "@" : "",
+ gline->gl_host ? gline->gl_host : "",
gline->gl_expire + TSoffset,
- GlineIsLocal(gline) ? me.name : "*",
+ GlineIsLocal(gline) ? cli_name(&me) : "*",
GlineIsActive(gline) ? '+' : '-', gline->gl_reason);
} else {
for (gline = GlobalGlineList; gline; gline = sgline) {
if (gline->gl_expire <= CurrentTime)
gline_free(gline);
else
- send_reply(sptr, RPL_GLIST, gline->gl_user, "@", gline->gl_host,
+ send_reply(sptr, RPL_GLIST, gline->gl_user,
+ gline->gl_host ? "@" : "",
+ gline->gl_host ? gline->gl_host : "",
gline->gl_expire + TSoffset,
- GlineIsLocal(gline) ? me.name : "*",
+ GlineIsLocal(gline) ? cli_name(&me) : "*",
GlineIsActive(gline) ? '+' : '-', gline->gl_reason);
}
else
send_reply(sptr, RPL_GLIST, gline->gl_user, "", "",
gline->gl_expire + TSoffset,
- GlineIsLocal(gline) ? me.name : "*",
+ GlineIsLocal(gline) ? cli_name(&me) : "*",
GlineIsActive(gline) ? '+' : '-', gline->gl_reason);
}
}
return send_reply(sptr, RPL_ENDOFGLIST);
}
+/** Statistics callback to list G-lines.
+ * @param[in] sptr Client requesting statistics.
+ * @param[in] sd Stats descriptor for request (ignored).
+ * @param[in] param Extra parameter from user (ignored).
+ */
void
-gline_stats(struct Client *sptr)
+gline_stats(struct Client *sptr, const struct StatDesc *sd,
+ char *param)
{
struct Gline *gline;
struct Gline *sgline;
if (gline->gl_expire <= CurrentTime)
gline_free(gline);
else
- send_reply(sptr, RPL_STATSGLINE, 'G', gline->gl_user, gline->gl_host,
+ send_reply(sptr, RPL_STATSGLINE, 'G', gline->gl_user,
+ gline->gl_host ? "@" : "",
+ gline->gl_host ? gline->gl_host : "",
gline->gl_expire + TSoffset, gline->gl_reason);
}
}
+
+/** Calculate memory used by G-lines.
+ * @param[out] gl_size Number of bytes used by G-lines.
+ * @return Number of G-lines in use.
+ */
+int
+gline_memory_count(size_t *gl_size)
+{
+ struct Gline *gline;
+ unsigned int gl = 0;
+
+ for (gline = GlobalGlineList; gline; gline = gline->gl_next)
+ {
+ gl++;
+ *gl_size += sizeof(struct Gline);
+ *gl_size += gline->gl_user ? (strlen(gline->gl_user) + 1) : 0;
+ *gl_size += gline->gl_host ? (strlen(gline->gl_host) + 1) : 0;
+ *gl_size += gline->gl_reason ? (strlen(gline->gl_reason) + 1) : 0;
+ }
+ return gl;
+}
projects / ircu2.10.12-pk.git / blobdiff