*
* 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 "sys.h" /* FALSE bleah */
+#include "sys.h"
+#include "msg.h"
+#include "numnicks.h"
+#include "numeric.h"
+
+/* #include <assert.h> -- Now using assert in ircd_log.h */
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#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 */
-#include <assert.h>
+#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;
+/** Iterate through \a list of G-lines. Use this like a for loop,
+ * i.e., follow it with braces and use whatever you passed as \a gl
+ * as a single G-line to be acted upon.
+ *
+ * @param[in] list List of G-lines to iterate over.
+ * @param[in] gl Name of a struct Gline pointer variable that will be made to point to the G-lines in sequence.
+ * @param[in] next Name of a scratch struct Gline pointer variable.
+ */
+/* There is some subtlety here with the boolean operators:
+ * (x || 1) is used to continue in a logical-and series even when !x.
+ * (x && 0) is used to continue in a logical-or series even when x.
+ */
+#define gliter(list, gl, next) \
+ /* Iterate through the G-lines in the list */ \
+ for ((gl) = (list); (gl); (gl) = (next)) \
+ /* Figure out the next pointer in list... */ \
+ if ((((next) = (gl)->gl_next) || 1) && \
+ /* Then see if it's expired */ \
+ (gl)->gl_lifetime <= TStime()) \
+ /* Record has expired, so free the G-line */ \
+ gline_free((gl)); \
+ /* See if we need to expire the G-line */ \
+ else if ((((gl)->gl_expire > TStime()) || \
+ (((gl)->gl_flags &= ~GLINE_ACTIVE) && 0) || \
+ ((gl)->gl_state = GLOCAL_GLOBAL)) && 0) \
+ ; /* empty statement */ \
+ else
+
+/** 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,
- unsigned int flags)
+make_gline(char *user, char *host, char *reason, time_t expire, time_t lastmod,
+ time_t lifetime, unsigned int flags)
{
- struct Gline *agline;
- char *user, *host;
+ struct Gline *gline;
+
+ assert(0 != expire);
- agline = (struct Gline *)MyMalloc(sizeof(struct Gline)); /* alloc memory */
- assert(0 != agline);
+ gline = (struct Gline *)MyMalloc(sizeof(struct Gline)); /* alloc memory */
+ assert(0 != gline);
- gline->gl_expire = expire; /* initialize gline... */
+ DupString(gline->gl_reason, reason); /* initialize gline... */
+ gline->gl_expire = expire;
+ gline->gl_lifetime = lifetime;
gline->gl_lastmod = lastmod;
gline->gl_flags = flags & GLINE_MASK;
+ gline->gl_state = GLOCAL_GLOBAL; /* not locally modified */
if (flags & GLINE_BADCHAN) { /* set a BADCHAN gline */
- DupString(gline->gl_user, userhost); /* first, remember channel */
- gline->gl_host = 0;
+ DupString(gline->gl_user, user); /* first, remember channel */
+ gline->gl_host = NULL;
gline->gl_next = BadChanGlineList; /* then link it into list */
gline->gl_prev_p = &BadChanGlineList;
if (BadChanGlineList)
- BadChanGlineList->gl_prev_p = &agline->gl_next;
- BadChanGlineList = agline;
+ BadChanGlineList->gl_prev_p = &gline->gl_next;
+ BadChanGlineList = gline;
} else {
- canon_userhost(userhost, &user, &host, "*"); /* find user and host */
-
DupString(gline->gl_user, user); /* remember them... */
- DupString(gline->gl_host, host);
+ if (*user != '$')
+ DupString(gline->gl_host, host);
+ else
+ gline->gl_host = NULL;
- if (check_if_ipmask(host)) /* mark if it's an IP mask */
+ if (*user != '$' && ipmask_parse(host, &gline->gl_addr, &gline->gl_bits))
gline->gl_flags |= GLINE_IPMASK;
gline->gl_next = GlobalGlineList; /* then link it into list */
gline->gl_prev_p = &GlobalGlineList;
if (GlobalGlineList)
- GlobalGlineList->gl_prev_p = &agline->gl_next;
- GlobalGlineList = agline;
+ GlobalGlineList->gl_prev_p = &gline->gl_next;
+ GlobalGlineList = gline;
}
- return agline;
+ 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 (feature_bool(FEAT_DISABLE_GLINES))
+ return 0; /* G-lines are disabled */
+
+ 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 ((GlineIsIpMask(gline) ? match(gline->host, acptr->sock_ip) :
- match(gline->host, acptr->sockhost)) == 0 &&
- (!acptr->user->username ||
- match(gline->name, acptr->user->username) == 0)) {
- /* ok, here's one that got G-lined */
- sendto_one(acptr, ":%s %d %s :*** %s.", me.name, ERR_YOUREBANNEDCREEP,
- acptr->name, gline->reason);
-
- /* let the ops know about it */
- sendto_op_mask(SNO_GLINE, "G-line active for %s",
- get_client_name(acptr, FALSE));
-
- /* and get rid of him */
- if ((tval = exit_client_msg(cptr, acptr, &me, "G-lined (%s)",
- gline->reason)))
- retval = tval; /* retain killed status */
+ 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)) {
+ if (!ipmask_check(&cli_ip(acptr), &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 */
+ send_reply(acptr, SND_EXPLICIT | ERR_YOUREBANNEDCREEP, ":%s",
+ gline->gl_reason);
+
+ /* let the ops know about it */
+ sendto_opmask_butone(0, SNO_GLINE, "G-line active for %s",
+ get_client_name(acptr, SHOW_IP));
+
+ /* and get rid of him */
+ if ((tval = exit_client_msg(cptr, acptr, &me, "G-lined (%s)",
+ gline->gl_reason)))
+ retval = tval; /* retain killed status */
}
}
-
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)
{
- if (GlineIsLocal(gline)) /* don't propagate local glines */
- return;
+ 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 > 32)
+ return CHECK_REJECTED;
+ if (ipmask < 32)
+ flags |= MASK_WILDS;
+ }
- if (IsUser(sptr)) { /* select appropriate source */
- assert(0 != gline->gl_lastmod);
- sendto_serv_butone(cptr, "%s%s " TOK_GLINE " * %c%s%s%s " TIME_T_FMT " "
- TIME_T_FMT " :%s", NumNick(sptr),
- GlineIsActive(gline) ? '+' : '-', gline->gl_user,
- GlineIsBadChan(gline) ? "" : "@",
- GlineIsBadChan(gline) ? "" : gline->gl_host,
- gline->gl_expire - TStime(), gline->gl_lastmod,
- gline->gl_reason);
- } else {
- if (gline->gl_lastmod)
- sendto_serv_butone(cptr, "%s " TOK_GLINE " * %c%s%s%s " TIME_T_FMT " "
- TIME_T_FMT " :%s", NumServ(sptr),
- GlineIsActive(gline) ? '+' : '-', gline->gl_user,
- GlineIsBadChan(gline) ? "" : "@",
- GlineIsBadChan(gline) ? "" : gline->gl_host,
- gline->gl_expire - TStime(), gline->gl_lastmod,
- gline->gl_reason);
- else
- sendto_serv_butone(cptr, "%s " TOK_GLINE " * %c%s%s%s " TIME_T_FMT
- " :%s", NumServ(sptr),
- GlineIsActive(gline) ? '+' : '-', gline->gl_user,
- GlineIsBadChan(gline) ? "" : "@",
- GlineIsBadChan(gline) ? "" : gline->gl_host,
- gline->gl_expire - TStime(), gline->gl_reason);
+ 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.
+ */
+static int
+gline_propagate(struct Client *cptr, struct Client *sptr, struct Gline *gline)
+{
+ if (GlineIsLocal(gline))
+ return 0;
+
+ assert(gline->gl_lastmod);
+
+ sendcmdto_serv_butone(sptr, CMD_GLINE, cptr, "* %c%s%s%s %Tu %Tu %Tu :%s",
+ GlineIsRemActive(gline) ? '+' : '-', gline->gl_user,
+ gline->gl_host ? "@" : "",
+ gline->gl_host ? gline->gl_host : "",
+ gline->gl_expire - TStime(), gline->gl_lastmod,
+ gline->gl_lifetime, gline->gl_reason);
+
+ return 0;
+}
+
+/** Count number of users who match \a mask.
+ * @param[in] mask user\@host or user\@ip mask to check.
+ * @param[in] flags Bitmask possibly containing the value GLINE_LOCAL, to limit searches to this server.
+ * @return Count of matching users.
+ */
+static int
+count_users(char *mask, int flags)
+{
+ struct irc_in_addr ipmask;
+ struct Client *acptr;
+ int count = 0;
+ int ipmask_valid;
+ char namebuf[USERLEN + HOSTLEN + 2];
+ char ipbuf[USERLEN + SOCKIPLEN + 2];
+ unsigned char ipmask_len;
+
+ ipmask_valid = ipmask_parse(mask, &ipmask, &ipmask_len);
+ for (acptr = GlobalClientList; acptr; acptr = cli_next(acptr)) {
+ if (!IsUser(acptr))
+ continue;
+ if ((flags & GLINE_LOCAL) && !MyConnect(acptr))
+ continue;
+
+ ircd_snprintf(0, namebuf, sizeof(namebuf), "%s@%s",
+ cli_user(acptr)->username, cli_user(acptr)->host);
+ ircd_snprintf(0, ipbuf, sizeof(ipbuf), "%s@%s", cli_user(acptr)->username,
+ ircd_ntoa(&cli_ip(acptr)));
+
+ if (!match(mask, namebuf)
+ || !match(mask, ipbuf)
+ || (ipmask_valid && ipmask_check(&cli_ip(acptr), &ipmask, ipmask_len)))
+ count++;
+ }
+
+ return count;
+}
+
+/** Count number of users with a realname matching \a mask.
+ * @param[in] mask Wildcard mask to match against realnames.
+ * @return Count of matching users.
+ */
+static int
+count_realnames(const char *mask)
+{
+ struct Client *acptr;
+ int minlen;
+ int count;
+ char cmask[BUFSIZE];
+
+ count = 0;
+ matchcomp(cmask, &minlen, NULL, mask);
+ for (acptr = GlobalClientList; acptr; acptr = cli_next(acptr)) {
+ if (!IsUser(acptr))
+ continue;
+ if (strlen(cli_info(acptr)) < minlen)
+ continue;
+ if (!matchexec(cli_info(acptr), cmask, minlen))
+ count++;
}
+ return count;
}
-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 $R and followed by a mask to match against their realname.
+ * \li A user\@IP mask (user\@ part optional) to create an IP-based ban.
+ * \li A user\@host mask (user\@ part optional) to create a hostname ban.
+ *
+ * @param[in] cptr Client that sent us the G-line.
+ * @param[in] sptr Client that originated the G-line.
+ * @param[in] userhost Text mask for the G-line.
+ * @param[in] reason Reason for G-line.
+ * @param[in] expire Expiration time of G-line.
+ * @param[in] lastmod Last modification time of G-line.
+ * @param[in] lifetime Lifetime of G-line.
+ * @param[in] flags Bitwise combination of GLINE_* flags.
+ * @return Zero or CPTR_KILLED, depending on whether \a sptr is suicidal.
+ */
+int
gline_add(struct Client *cptr, struct Client *sptr, char *userhost,
- char *reason, time_t expire, time_t lastmod, unsigned int flags)
+ char *reason, time_t expire, time_t lastmod, time_t lifetime,
+ unsigned int flags)
{
struct Gline *agline;
+ char uhmask[USERLEN + HOSTLEN + 2];
+ char *user, *host;
+ int tmp;
assert(0 != userhost);
assert(0 != reason);
+ assert(((flags & (GLINE_GLOBAL | GLINE_LOCAL)) == GLINE_GLOBAL) ||
+ ((flags & (GLINE_GLOBAL | GLINE_LOCAL)) == GLINE_LOCAL));
+
+ Debug((DEBUG_DEBUG, "gline_add(\"%s\", \"%s\", \"%s\", \"%s\", %Tu, %Tu "
+ "%Tu, 0x%04x)", cli_name(cptr), cli_name(sptr), userhost, reason,
+ expire, lastmod, lifetime, flags));
+
+ if (*userhost == '#' || *userhost == '&') {
+ if ((flags & GLINE_LOCAL) && !HasPriv(sptr, PRIV_LOCAL_BADCHAN))
+ return send_reply(sptr, ERR_NOPRIVILEGES);
+
+ flags |= GLINE_BADCHAN;
+ user = userhost;
+ host = NULL;
+ } else if (*userhost == '$') {
+ switch (userhost[1]) {
+ case 'R': flags |= GLINE_REALNAME; break;
+ default:
+ /* uh, what to do here? */
+ /* The answer, my dear Watson, is we throw a protocol_violation()
+ -- hikari */
+ if (IsServer(cptr))
+ return protocol_violation(sptr,"%s has been smoking the sweet leaf and sent me a whacky gline",cli_name(sptr));
+ sendto_opmask_butone(NULL, SNO_GLINE, "%s has been smoking the sweet leaf and sent me a whacky gline", cli_name(sptr));
+ return 0;
+ }
+ user = userhost;
+ host = NULL;
+ if (MyUser(sptr) || (IsUser(sptr) && flags & GLINE_LOCAL)) {
+ tmp = count_realnames(userhost + 2);
+ if ((tmp >= feature_int(FEAT_GLINEMAXUSERCOUNT))
+ && !(flags & GLINE_OPERFORCE))
+ return send_reply(sptr, ERR_TOOMANYUSERS, tmp);
+ }
+ } 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, flags)) >=
+ 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.
*/
- if (!(flags & GLINE_FORCE) && (expire <= 0 || expire > GLINE_MAX_EXPIRE)) {
+ if (!(flags & GLINE_FORCE) &&
+ (expire <= TStime() || expire > TStime() + GLINE_MAX_EXPIRE)) {
if (!IsServer(sptr) && MyConnect(sptr))
- send_error_to_client(sptr, ERR_BADEXPIRE, expire);
+ send_reply(sptr, ERR_BADEXPIRE, expire);
return 0;
+ } else if (expire <= TStime()) {
+ /* This expired G-line was forced to be added, so mark it inactive. */
+ flags &= ~GLINE_ACTIVE;
}
- expire += TStime(); /* convert from lifetime to timestamp */
+ if (!lifetime) /* no lifetime set, use expiration time */
+ lifetime = expire;
- /* NO_OLD_GLINE allows *@#channel to work correctly */
-#ifdef BADCHAN
- 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;
- }
-#endif /* BADCHAN */
+ /* lifetime is already an absolute timestamp */
/* Inform ops... */
- sendto_op_mask(SNO_GLINE, "%s adding %s %s for %s, expiring at "
- TIME_T_FMT ": %s",
- IsServer(sptr) ? sptr->name : sptr->user->server->name,
- flags & GLINE_LOCAL ? "local" : "global",
- flags & GLINE_BADCHAN ? "BADCHAN" : "GLINE", userhost,
- expire, reason);
-
-#ifdef GPATH
+ sendto_opmask_butone(0, ircd_strncmp(reason, "AUTO", 4) ? SNO_GLINE :
+ SNO_AUTO, "%s adding %s%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_ACTIVE) ? "" : "deactivated ",
+ (flags & GLINE_LOCAL) ? "local" : "global",
+ (flags & GLINE_BADCHAN) ? "BADCHAN" : "GLINE", user,
+ (flags & (GLINE_BADCHAN|GLINE_REALNAME)) ? "" : "@",
+ (flags & (GLINE_BADCHAN|GLINE_REALNAME)) ? "" : host,
+ expire, reason);
+
/* and log it */
- if (IsServer(sptr))
- write_log(GPATH, "# " TIME_T_FMT " %s adding %s %s for %s, expiring at "
- TIME_T_FMT ": %s\n", TStime(), sptr->name,
- flags & GLINE_LOCAL ? "local" : "global",
- flags & GLINE_BADCHAN ? "BADCHAN" : "GLINE", userhost, expire,
- reason);
- else
- write_log(GPATH, "# " TIME_T_FMT " %s!%s@%s adding %s %s for %s, "
- "expiring at " TIME_T_FMT ": %s\n", TStime(), sptr->name,
- sptr->user->username, sptr->user->host,
- flags & GLINE_LOCAL ? "local" : "global",
- flags & GLINE_BADCHAN ? "BADCHAN" : "GLINE", userhost, expire,
- reason);
-#endif /* GPATH */
+ 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, reason);
/* make the gline */
- agline = make_gline(userhost, reason, expire, lastmod, flags);
+ agline = make_gline(user, host, reason, expire, lastmod, lifetime, flags);
- propagate_gline(cptr, sptr, agline);
-
- if (GlineIsBadChan(agline))
- return 0;
+ /* since we've disabled overlapped G-line checking, agline should
+ * never be NULL...
+ */
+ assert(agline);
-#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)
+ time_t lastmod, unsigned int flags)
{
+ unsigned int saveflags = 0;
+
assert(0 != gline);
- gline->gl_flags |= GLINE_ACTIVE;
- gline->gl_lastmod = lastmod;
+ saveflags = gline->gl_flags;
+
+ if (flags & GLINE_LOCAL)
+ gline->gl_flags &= ~GLINE_LDEACT;
+ else {
+ gline->gl_flags |= GLINE_ACTIVE;
+
+ 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)
+ return 0; /* was active to begin with */
/* Inform ops and log it */
- sendto_op_mask(SNO_GLINE, "%s activating %s %s for %s%s%s, expiring at "
- TIME_T_FMT ": %s",
- IsServer(sptr) ? sptr->name : sptr->user->server->name,
- GlineIsLocal(gline) ? "local" : "global",
- GlineIsBadChan(gline) ? "BADCHAN" : "GLINE",
- gline->gl_user, GlineIsBadChan(gline) ? "" : "@",
- GlineIsBadChan(gline) ? "" : gline->gl_host, gline->gl_expire,
- gline->gl_reason);
-
-#ifdef GPATH
- if (IsServer(sptr))
- write_log(GPATH, "# " TIME_T_FMT " %s activating %s %s for %s%s%s, "
- "expiring at " TIME_T_FMT ": %s\n", TStime(), sptr->name,
- GlineIsLocal(gline) ? "local" : "global",
- GlineIsBadChan(gline) ? "BADCHAN" : "GLINE",
- gline->gl_user, GlineIsBadChan(gline) ? "" : "@",
- GlineIsBadChan(gline) ? "" : gline->gl_host, gline->gl_expire,
- gline->gl_reason);
- else
- write_log(GPATH, "# " TIME_T_FMT " %s!%s@%s activating %s %s for "
- "%s%s%s, expiring at " TIME_T_FMT ": %s\n", TStime(), sptr->name,
- sptr->user->username, sptr->user->host,
- GlineIsLocal(gline) ? "local" : "global",
- GlineIsBadChan(gline) ? "BADCHAN" : "GLINE",
- gline->gl_user, GlineIsBadChan(gline) ? "" : "@",
- GlineIsBadChan(gline) ? "" : gline->gl_host, gline->gl_expire,
- gline->gl_reason);
-#endif /* GPATH */
-
- propagate_gline(cptr, sptr, gline);
-
- return GlineIsBadChan(gline) ? 0 : do_gline(cptr, sptr, gline);
+ sendto_opmask_butone(0, SNO_GLINE, "%s activating global %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),
+ GlineIsBadChan(gline) ? "BADCHAN" : "GLINE",
+ gline->gl_user, gline->gl_host ? "@" : "",
+ gline->gl_host ? gline->gl_host : "",
+ gline->gl_expire, 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, gline->gl_reason);
+
+ if (!(flags & GLINE_LOCAL)) /* don't propagate local changes */
+ gline_propagate(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)
+ time_t lastmod, unsigned int flags)
{
+ unsigned int saveflags = 0;
+ char *msg;
+
assert(0 != gline);
- gline->gl_flags &= ~GLINE_ACTIVE;
- gline->gl_lastmod = lastmod;
+ saveflags = gline->gl_flags;
+
+ if (GlineIsLocal(gline))
+ msg = "removing local";
+ else if (!gline->gl_lastmod && !(flags & GLINE_LOCAL)) {
+ msg = "removing global";
+ gline->gl_flags &= ~GLINE_ACTIVE; /* propagate a -<mask> */
+ } else {
+ msg = "deactivating global";
+
+ if (flags & GLINE_LOCAL)
+ gline->gl_flags |= GLINE_LDEACT;
+ else {
+ gline->gl_flags &= ~GLINE_ACTIVE;
+
+ if (gline->gl_lastmod) {
+ if (gline->gl_lastmod >= lastmod)
+ gline->gl_lastmod++;
+ else
+ gline->gl_lastmod = lastmod;
+ }
+ }
+
+ if ((saveflags & GLINE_ACTMASK) != GLINE_ACTIVE)
+ return 0; /* was inactive to begin with */
+ }
/* Inform ops and log it */
- sendto_op_mask(SNO_GLINE, "%s deactivating %s %s for %s%s%s, expiring at "
- TIME_T_FMT ": %s",
- IsServer(sptr) ? sptr->name : sptr->user->server->name,
- GlineIsLocal(gline) ? "local" : "global",
- GlineIsBadChan(gline) ? "BADCHAN" : "GLINE",
- gline->gl_user, GlineIsBadChan(gline) ? "" : "@",
- GlineIsBadChan(gline) ? "" : gline->gl_host, gline->gl_expire,
- gline->gl_reason);
-
-#ifdef GPATH
- if (IsServer(sptr))
- write_log(GPATH, "# " TIME_T_FMT " %s deactivating %s %s for %s%s%s, "
- "expiring at " TIME_T_FMT ": %s\n", TStime(), sptr->name,
- GlineIsLocal(gline) ? "local" : "global",
- GlineIsBadChan(gline) ? "BADCHAN" : "GLINE",
- gline->gl_user, GlineIsBadChan(gline) ? "" : "@",
- GlineIsBadChan(gline) ? "" : gline->gl_host, gline->gl_expire,
- gline->gl_reason);
- else
- write_log(GPATH, "# " TIME_T_FMT " %s!%s@%s deactivating %s %s for "
- "%s%s%s, expiring at " TIME_T_FMT ": %s\n", TStime(), sptr->name,
- sptr->user->username, sptr->user->host,
- GlineIsLocal(gline) ? "local" : "global",
- GlineIsBadChan(gline) ? "BADCHAN" : "GLINE",
- gline->gl_user, GlineIsBadChan(gline) ? "" : "@",
- GlineIsBadChan(gline) ? "" : gline->gl_host, gline->gl_expire,
- gline->gl_reason);
-#endif /* GPATH */
-
- propagate_gline(cptr, sptr, gline);
+ sendto_opmask_butone(0, SNO_GLINE, "%s %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),
+ msg, GlineIsBadChan(gline) ? "BADCHAN" : "GLINE",
+ gline->gl_user, gline->gl_host ? "@" : "",
+ gline->gl_host ? gline->gl_host : "",
+ gline->gl_expire, gline->gl_reason);
+
+ 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, gline->gl_reason);
+
+ 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); /* get rid of it */
return 0;
}
+/** Modify a global G-line.
+ * @param[in] cptr Client that sent us the G-line modification.
+ * @param[in] sptr Client that originated the G-line modification.
+ * @param[in] gline G-line being modified.
+ * @param[in] action Resultant status of the G-line.
+ * @param[in] reason Reason for G-line.
+ * @param[in] expire Expiration time of G-line.
+ * @param[in] lastmod Last modification time of G-line.
+ * @param[in] lifetime Lifetime 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_modify(struct Client *cptr, struct Client *sptr, struct Gline *gline,
+ enum GlineAction action, char *reason, time_t expire,
+ time_t lastmod, time_t lifetime, unsigned int flags)
+{
+ char buf[BUFSIZE], *op = "";
+ int pos = 0, non_auto = 0;
+
+ assert(gline);
+ assert(!GlineIsLocal(gline));
+
+ Debug((DEBUG_DEBUG, "gline_modify(\"%s\", \"%s\", \"%s%s%s\", %s, \"%s\", "
+ "%Tu, %Tu, %Tu, 0x%04x)", cli_name(cptr), cli_name(sptr),
+ gline->gl_user, gline->gl_host ? "@" : "",
+ gline->gl_host ? gline->gl_host : "",
+ action == GLINE_ACTIVATE ? "GLINE_ACTIVATE" :
+ (action == GLINE_DEACTIVATE ? "GLINE_DEACTIVATE" :
+ (action == GLINE_LOCAL_ACTIVATE ? "GLINE_LOCAL_ACTIVATE" :
+ (action == GLINE_LOCAL_DEACTIVATE ? "GLINE_LOCAL_DEACTIVATE" :
+ (action == GLINE_MODIFY ? "GLINE_MODIFY" : "<UNKNOWN>")))),
+ reason, expire, lastmod, lifetime, flags));
+
+ /* First, let's check lastmod... */
+ if (action != GLINE_LOCAL_ACTIVATE && action != GLINE_LOCAL_DEACTIVATE) {
+ if (GlineLastMod(gline) > lastmod) { /* we have a more recent version */
+ if (IsBurstOrBurstAck(cptr))
+ return 0; /* middle of a burst, it'll resync on its own */
+ return gline_resend(cptr, gline); /* resync the server */
+ } else if (GlineLastMod(gline) == lastmod)
+ return 0; /* we have that version of the G-line... */
+ }
+
+ /* All right, we know that there's a change of some sort. What is it? */
+ /* first, check out the expiration time... */
+ if ((flags & GLINE_EXPIRE) && expire) {
+ if (!(flags & GLINE_FORCE) &&
+ (expire <= TStime() || expire > TStime() + GLINE_MAX_EXPIRE)) {
+ if (!IsServer(sptr) && MyConnect(sptr)) /* bad expiration time */
+ send_reply(sptr, ERR_BADEXPIRE, expire);
+ return 0;
+ }
+ } else
+ flags &= ~GLINE_EXPIRE;
+
+ /* Now check to see if there's any change... */
+ if ((flags & GLINE_EXPIRE) && expire == gline->gl_expire) {
+ flags &= ~GLINE_EXPIRE; /* no change to expiration time... */
+ expire = 0;
+ }
+
+ /* Next, check out lifetime--this one's a bit trickier... */
+ if (!(flags & GLINE_LIFETIME) || !lifetime)
+ lifetime = gline->gl_lifetime; /* use G-line lifetime */
+
+ lifetime = IRCD_MAX(lifetime, expire); /* set lifetime to the max */
+
+ /* OK, let's see which is greater... */
+ if (lifetime > gline->gl_lifetime)
+ flags |= GLINE_LIFETIME; /* have to update lifetime */
+ else {
+ flags &= ~GLINE_LIFETIME; /* no change to lifetime */
+ lifetime = 0;
+ }
+
+ /* Finally, let's see if the reason needs to be updated */
+ if ((flags & GLINE_REASON) && reason &&
+ !ircd_strcmp(gline->gl_reason, reason))
+ flags &= ~GLINE_REASON; /* no changes to the reason */
+
+ /* OK, now let's take a look at the action... */
+ if ((action == GLINE_ACTIVATE && (gline->gl_flags & GLINE_ACTIVE)) ||
+ (action == GLINE_DEACTIVATE && !(gline->gl_flags & GLINE_ACTIVE)) ||
+ (action == GLINE_LOCAL_ACTIVATE &&
+ (gline->gl_state == GLOCAL_ACTIVATED)) ||
+ (action == GLINE_LOCAL_DEACTIVATE &&
+ (gline->gl_state == GLOCAL_DEACTIVATED)) ||
+ /* can't activate an expired G-line */
+ IRCD_MAX(gline->gl_expire, expire) <= TStime())
+ action = GLINE_MODIFY; /* no activity state modifications */
+
+ Debug((DEBUG_DEBUG, "About to perform changes; flags 0x%04x, action %s",
+ flags, action == GLINE_ACTIVATE ? "GLINE_ACTIVATE" :
+ (action == GLINE_DEACTIVATE ? "GLINE_DEACTIVATE" :
+ (action == GLINE_LOCAL_ACTIVATE ? "GLINE_LOCAL_ACTIVATE" :
+ (action == GLINE_LOCAL_DEACTIVATE ? "GLINE_LOCAL_DEACTIVATE" :
+ (action == GLINE_MODIFY ? "GLINE_MODIFY" : "<UNKNOWN>"))))));
+
+ /* If there are no changes to perform, do no changes */
+ if (!(flags & GLINE_UPDATE) && action == GLINE_MODIFY)
+ return 0;
+
+ /* Now we know what needs to be changed, so let's process the changes... */
+
+ /* Start by updating lastmod, if indicated... */
+ if (action != GLINE_LOCAL_ACTIVATE && action != GLINE_LOCAL_DEACTIVATE)
+ gline->gl_lastmod = lastmod;
+
+ /* Then move on to activity status changes... */
+ switch (action) {
+ case GLINE_ACTIVATE: /* Globally activating G-line */
+ gline->gl_flags |= GLINE_ACTIVE; /* make it active... */
+ gline->gl_state = GLOCAL_GLOBAL; /* reset local activity state */
+ pos += ircd_snprintf(0, buf, sizeof(buf), " globally activating G-line");
+ op = "+"; /* operation for G-line propagation */
+ break;
+
+ case GLINE_DEACTIVATE: /* Globally deactivating G-line */
+ gline->gl_flags &= ~GLINE_ACTIVE; /* make it inactive... */
+ gline->gl_state = GLOCAL_GLOBAL; /* reset local activity state */
+ pos += ircd_snprintf(0, buf, sizeof(buf), " globally deactivating G-line");
+ op = "-"; /* operation for G-line propagation */
+ break;
+
+ case GLINE_LOCAL_ACTIVATE: /* Locally activating G-line */
+ gline->gl_state = GLOCAL_ACTIVATED; /* make it locally active */
+ pos += ircd_snprintf(0, buf, sizeof(buf), " locally activating G-line");
+ break;
+
+ case GLINE_LOCAL_DEACTIVATE: /* Locally deactivating G-line */
+ gline->gl_state = GLOCAL_DEACTIVATED; /* make it locally inactive */
+ pos += ircd_snprintf(0, buf, sizeof(buf), " locally deactivating G-line");
+ break;
+
+ case GLINE_MODIFY: /* no change to activity status */
+ break;
+ }
+
+ /* Handle expiration changes... */
+ if (flags & GLINE_EXPIRE) {
+ gline->gl_expire = expire; /* save new expiration time */
+ if (pos < BUFSIZE)
+ pos += ircd_snprintf(0, buf + pos, sizeof(buf) - pos,
+ "%s%s changing expiration time to %Tu",
+ pos ? ";" : "",
+ pos && !(flags & (GLINE_LIFETIME | GLINE_REASON)) ?
+ " and" : "", expire);
+ }
+
+ /* Next, handle lifetime changes... */
+ if (flags & GLINE_LIFETIME) {
+ gline->gl_lifetime = lifetime; /* save new lifetime */
+ if (pos < BUFSIZE)
+ pos += ircd_snprintf(0, buf + pos, sizeof(buf) - pos,
+ "%s%s extending record lifetime to %Tu",
+ pos ? ";" : "", pos && !(flags & GLINE_REASON) ?
+ " and" : "", lifetime);
+ }
+
+ /* Now, handle reason changes... */
+ if (flags & GLINE_REASON) {
+ non_auto = non_auto || ircd_strncmp(gline->gl_reason, "AUTO", 4);
+ MyFree(gline->gl_reason); /* release old reason */
+ DupString(gline->gl_reason, reason); /* store new reason */
+ if (pos < BUFSIZE)
+ pos += ircd_snprintf(0, buf + pos, sizeof(buf) - pos,
+ "%s%s changing reason to \"%s\"",
+ pos ? ";" : "", pos ? " and" : "", reason);
+ }
+
+ /* All right, inform ops... */
+ non_auto = non_auto || ircd_strncmp(gline->gl_reason, "AUTO", 4);
+ sendto_opmask_butone(0, non_auto ? SNO_GLINE : SNO_AUTO,
+ "%s modifying global %s for %s%s%s:%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 : "", buf);
+
+ /* and log the change */
+ log_write(LS_GLINE, L_INFO, LOG_NOSNOTICE,
+ "%#C modifying global %s for %s%s%s:%s", sptr,
+ GlineIsBadChan(gline) ? "BADCHAN" : "GLINE", gline->gl_user,
+ gline->gl_host ? "@" : "", gline->gl_host ? gline->gl_host : "",
+ buf);
+
+ /* We'll be simple for this release, but we can update this to change
+ * the propagation syntax on future updates
+ */
+ if (action != GLINE_LOCAL_ACTIVATE && action != GLINE_LOCAL_DEACTIVATE)
+ sendcmdto_serv_butone(sptr, CMD_GLINE, cptr,
+ "* %s%s%s%s%s %Tu %Tu %Tu :%s",
+ flags & GLINE_OPERFORCE ? "!" : "", op,
+ gline->gl_user, gline->gl_host ? "@" : "",
+ gline->gl_host ? gline->gl_host : "",
+ gline->gl_expire - TStime(), gline->gl_lastmod,
+ gline->gl_lifetime, gline->gl_reason);
+
+ /* OK, let's do the G-line... */
+ return do_gline(cptr, sptr, gline);
+}
+
+/** Destroy a local G-line.
+ * @param[in] cptr Peer that gave us the message.
+ * @param[in] sptr Client that initiated the destruction.
+ * @param[in] gline G-line to destroy.
+ * @return Zero.
+ */
+int
+gline_destroy(struct Client *cptr, struct Client *sptr, struct Gline *gline)
+{
+ assert(gline);
+ assert(GlineIsLocal(gline));
+
+ /* Inform ops and log it */
+ sendto_opmask_butone(0, SNO_GLINE, "%s removing local %s for %s%s%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 : "");
+ log_write(LS_GLINE, L_INFO, LOG_NOSNOTICE,
+ "%#C removing local %s for %s%s%s", sptr,
+ GlineIsBadChan(gline) ? "BADCHAN" : "GLINE", gline->gl_user,
+ gline->gl_host ? "@" : "", gline->gl_host ? gline->gl_host : "");
+
+ gline_free(gline); /* get rid of the G-line */
+
+ return 0; /* convenience return */
+}
+
+/** 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_LOCAL</dt><dd>Only match local 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)
{
- struct Gline *gline;
+ struct Gline *gline = 0;
struct Gline *sgline;
char *user, *host, *t_uh;
if (flags & (GLINE_BADCHAN | GLINE_ANY)) {
- for (gline = BadChanGlineList; gline; gline = sgline) {
- sgline = gline->gl_next;
-
- if (gline->gl_expire <= TStime())
- gline_free(gline);
- else if (match(gline->gl_user, userhost) == 0)
+ gliter(BadChanGlineList, gline, sgline) {
+ if ((flags & (GlineIsLocal(gline) ? GLINE_GLOBAL : GLINE_LOCAL)) ||
+ (flags & GLINE_LASTMOD && !gline->gl_lastmod))
+ continue;
+ else if ((flags & GLINE_EXACT ? ircd_strcmp(gline->gl_user, userhost) :
+ match(gline->gl_user, userhost)) == 0)
return gline;
}
}
- if ((flags & (GLINE_BADCHAN | GLINE_ANY)) == GLINE_BADCHAN)
+ if ((flags & (GLINE_BADCHAN | GLINE_ANY)) == GLINE_BADCHAN ||
+ *userhost == '#' || *userhost == '&')
return 0;
DupString(t_uh, userhost);
- canon_userhost(t_uh, &user, &host, 0);
+ canon_userhost(t_uh, &user, &host, "*");
- for (gline = GlobalGlineList; gline; gline = sgline) {
- sgline = gline->gl_next;
-
- if (gline->gl_expire <= TStime())
- gline_free(gline);
- else if (match(gline->host, host) == 0 &&
- ((!user && ircd_strcmp(gline->user, "*") == 0) ||
- match(gline->user, user) == 0))
- break;
+ gliter(GlobalGlineList, gline, sgline) {
+ if ((flags & (GlineIsLocal(gline) ? GLINE_GLOBAL : GLINE_LOCAL)) ||
+ (flags & GLINE_LASTMOD && !gline->gl_lastmod))
+ continue;
+ else if (flags & GLINE_EXACT) {
+ if (((gline->gl_host && host && ircd_strcmp(gline->gl_host, host) == 0)
+ || (!gline->gl_host && !host)) &&
+ (ircd_strcmp(gline->gl_user, user) == 0))
+ break;
+ } else {
+ if (((gline->gl_host && host && match(gline->gl_host, host) == 0)
+ || (!gline->gl_host && !host)) &&
+ (match(gline->gl_user, user) == 0))
+ break;
+ }
}
MyFree(t_uh);
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)
+gline_lookup(struct Client *cptr, unsigned int flags)
{
struct Gline *gline;
struct Gline *sgline;
- for (gline = GlobalGlineList; gline; gline = sgline) {
- sgline = gline->gl_next;
+ gliter(GlobalGlineList, gline, sgline) {
+ if ((flags & GLINE_GLOBAL && gline->gl_flags & GLINE_LOCAL) ||
+ (flags & GLINE_LASTMOD && !gline->gl_lastmod))
+ continue;
+
+ 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;
+ }
+ else {
+ if (match(gline->gl_user, (cli_user(cptr))->username) != 0)
+ continue;
- if (gline->gl_expire <= TStime())
- gline_free(gline);
- else if ((GlineIsIpMask(gline) ?
- match(gline->gl_host, cptr->sock_ip) :
- match(gline->gl_host, cptr->sockhost)) == 0 &&
- match(gline->gl_user, cptr->user->username) == 0)
+ if (GlineIsIpMask(gline)) {
+ 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;
+ }
+ }
+ 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)
{
struct Gline *gline;
struct Gline *sgline;
- for (gline = GlobalGlineList; gline; gline = sgline) { /* all glines */
- sgline = gline->gl_next;
-
- if (gline->gl_expire <= TStime()) /* expire any that need expiring */
- gline_free(gline);
- else if (!GlineIsLocal(gline) && gline->gl_lastmod)
- sendto_one(cptr, "%s " TOK_GLINE " * %c%s@%s " TIME_T_FMT " " TIME_T_FMT
- " :%s", NumServ(&me), GlineIsActive(gline) ? '+' : '-',
- gline->gl_user, gline->gl_host, gline->gl_expire - TStime(),
- gline->gl_lastmod, gline->gl_reason);
+ gliter(GlobalGlineList, gline, sgline) {
+ if (!GlineIsLocal(gline) && gline->gl_lastmod)
+ sendcmdto_one(&me, CMD_GLINE, cptr, "* %c%s%s%s %Tu %Tu %Tu :%s",
+ GlineIsRemActive(gline) ? '+' : '-', gline->gl_user,
+ gline->gl_host ? "@" : "",
+ gline->gl_host ? gline->gl_host : "",
+ gline->gl_expire - TStime(), gline->gl_lastmod,
+ gline->gl_lifetime, gline->gl_reason);
}
- for (gline = BadChanGlineList; gline; gline = sgline) { /* all glines */
- sgline = gline->gl_next;
-
- if (gline->gl_expire <= TStime()) /* expire any that need expiring */
- gline_free(gline);
- else if (!GlineIsLocal(gline) && gline->gl_lastmod)
- sendto_one(cptr, "%s " TOK_GLINE " * %c%s " TIME_T_FMT " " TIME_T_FMT
- " :%s", NumServ(&me), GlineIsActive(gline) ? '+' : '-',
- gline->gl_user, gline->gl_expire - TStime(),
- gline->gl_lastmod, gline->gl_reason);
+ gliter(BadChanGlineList, gline, sgline) {
+ if (!GlineIsLocal(gline) && gline->gl_lastmod)
+ sendcmdto_one(&me, CMD_GLINE, cptr, "* %c%s %Tu %Tu %Tu :%s",
+ GlineIsRemActive(gline) ? '+' : '-', gline->gl_user,
+ gline->gl_expire - TStime(), gline->gl_lastmod,
+ gline->gl_lifetime, gline->gl_reason);
}
}
+/** 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)
{
if (GlineIsLocal(gline) || !gline->gl_lastmod)
return 0;
- sendto_one(cptr, "%s " TOK_GLINE " * %c%s%s%s " TIME_T_FMT " " TIME_T_FMT
- " :%s", NumServ(&me), GlineIsActive(gline) ? '+' : '-',
- gline->gl_user, GlineIsBadChan(gline) ? "" : "@",
- GlineIsBadChan(gline) ? "" : gline->gl_host,
- gline->gl_expire - TStime(), gline->gl_lastmod, gline->gl_reason);
+ sendcmdto_one(&me, CMD_GLINE, cptr, "* %c%s%s%s %Tu %Tu %Tu :%s",
+ GlineIsRemActive(gline) ? '+' : '-', gline->gl_user,
+ gline->gl_host ? "@" : "",
+ gline->gl_host ? gline->gl_host : "",
+ gline->gl_expire - TStime(), gline->gl_lastmod,
+ gline->gl_lifetime, 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)
{
struct Gline *sgline;
if (userhost) {
- if (!(gline = gline_find(userhost, GLINE_ANY))) { /* no such gline */
- send_error_to_client(sptr, ERR_NOSUCHGLINE, userhost);
- return 0;
- }
+ if (!(gline = gline_find(userhost, GLINE_ANY))) /* no such gline */
+ return send_reply(sptr, ERR_NOSUCHGLINE, userhost);
/* send gline information along */
- sendto_one(sptr, rpl_str(GLIST), me.name, sptr->name, gline->gl_user,
- GlineIsBadChan(gline) ? "" : "@",
- GlineIsBadChan(gline) ? "" : gline->gl_host, gline->gl_expire,
- GlineIsLocal(gline) ? me.name : "*",
- GlineIsActive(gline) ? '+' : '-', gline->gl_reason);
+ send_reply(sptr, RPL_GLIST, gline->gl_user,
+ gline->gl_host ? "@" : "",
+ gline->gl_host ? gline->gl_host : "",
+ gline->gl_expire, gline->gl_lastmod,
+ gline->gl_lifetime,
+ GlineIsLocal(gline) ? cli_name(&me) : "*",
+ gline->gl_state == GLOCAL_ACTIVATED ? ">" :
+ (gline->gl_state == GLOCAL_DEACTIVATED ? "<" : ""),
+ GlineIsRemActive(gline) ? '+' : '-', gline->gl_reason);
} else {
- for (gline = GlobalGlineList; gline; gline = sgline) {
- sgline = gline->gl_next;
-
- if (gline->gl_expire <= TStime())
- gline_free(gline);
- else
- sendto_one(sptr, rpl_str(GLIST), me.name, sptr->name, gline->gl_user,
- "@", gline->gl_host, gline->gl_expire,
- GlineIsLocal(gline) ? me.name : "*",
- GlineIsActive(gline) ? '+' : '-', gline->gl_reason);
+ gliter(GlobalGlineList, gline, sgline) {
+ send_reply(sptr, RPL_GLIST, gline->gl_user,
+ gline->gl_host ? "@" : "",
+ gline->gl_host ? gline->gl_host : "",
+ gline->gl_expire, gline->gl_lastmod,
+ gline->gl_lifetime,
+ GlineIsLocal(gline) ? cli_name(&me) : "*",
+ gline->gl_state == GLOCAL_ACTIVATED ? ">" :
+ (gline->gl_state == GLOCAL_DEACTIVATED ? "<" : ""),
+ GlineIsRemActive(gline) ? '+' : '-', gline->gl_reason);
}
- for (gline = BadChanGlineList; gline; gline = sgline) {
- sgline = gline->gl_next;
-
- if (gline->gl_expire <= TStime())
- gline_free(gline);
- else
- sendto_one(sptr, rpl_str(GLIST), me.name, sptr->name, gline->gl_user,
- "", "", gline->gl_expire,
- GlineIsLocal(gline) ? me.name : "*",
- GlineIsActive(gline) ? '+' : '-', gline->gl_reason);
+ gliter(BadChanGlineList, gline, sgline) {
+ send_reply(sptr, RPL_GLIST, gline->gl_user, "", "",
+ gline->gl_expire, gline->gl_lastmod,
+ gline->gl_lifetime,
+ GlineIsLocal(gline) ? cli_name(&me) : "*",
+ gline->gl_state == GLOCAL_ACTIVATED ? ">" :
+ (gline->gl_state == GLOCAL_DEACTIVATED ? "<" : ""),
+ GlineIsRemActive(gline) ? '+' : '-', gline->gl_reason);
}
}
/* end of gline information */
- sendto_one(cptr, rpl_str(RPL_ENDOFGLIST), me.name, sptr->name);
- return 0;
+ 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;
- for (gline = GlobalGlineList; gline; gline = sgline) {
- sgline = gline->gl_next;
-
- if (gline->gl_expire <= TStime())
- gline_free(gline);
- else
- sendto_one(sptr, rpl_str(RPL_STATSGLINE), me.name, sptr->name, 'G',
- gline->gl_user, gline->gl_host, gline->gl_expire,
- gline->gl_reason);
- }
-}
-
-
-#if 0 /* forget about it! */
-struct Gline *make_gline(int is_ipmask, char *host, char *reason,
- char *name, time_t expire)
-{
- struct Gline *agline;
-
-#ifdef BADCHAN
- int gtype = 0;
- if ('#' == *host || '&' == *host || '+' == *host)
- gtype = 1; /* BAD CHANNEL GLINE */
-#endif
-
- agline = (struct Gline*) MyMalloc(sizeof(struct Gline)); /* alloc memory */
- assert(0 != agline);
- DupString(agline->host, host); /* copy vital information */
- DupString(agline->reason, reason);
- DupString(agline->name, name);
- agline->expire = expire;
- agline->gflags = GLINE_ACTIVE; /* gline is active */
- if (is_ipmask)
- SetGlineIsIpMask(agline);
-#ifdef BADCHAN
- if (gtype)
- {
- agline->next = BadChanGlineList; /* link it into the list */
- return (BadChanGlineList = agline);
- }
-#endif
- agline->next = GlobalGlineList; /* link it into the list */
- return (GlobalGlineList = agline);
-}
-
-struct Gline *find_gline(struct Client *cptr, struct Gline **pgline)
-{
- struct Gline* gline = GlobalGlineList;
- struct Gline* prev = 0;
-
- while (gline) {
- /*
- * look through all glines
- */
- if (gline->expire <= TStime()) {
- /*
- * handle expired glines
- */
- free_gline(gline, prev);
- gline = prev ? prev->next : GlobalGlineList;
- if (!gline)
- break; /* gline == NULL means gline == NULL */
- continue;
- }
-
- /* Does gline match? */
- /* Added a check against the user's IP address as well -Kev */
- if ((GlineIsIpMask(gline) ?
- match(gline->host, ircd_ntoa((const char*) &cptr->ip)) :
- match(gline->host, cptr->sockhost)) == 0 &&
- match(gline->name, cptr->user->username) == 0) {
- if (pgline)
- *pgline = prev; /* If they need it, give them the previous gline
- entry (probably for free_gline, below) */
- return gline;
- }
-
- prev = gline;
- gline = gline->next;
- }
-
- return 0; /* found no glines */
-}
-
-void free_gline(struct Gline* gline, struct Gline* prev)
-{
- assert(0 != gline);
- if (prev)
- prev->next = gline->next; /* squeeze agline out */
- else {
-#ifdef BADCHAN
- assert(0 != gline->host);
- if ('#' == *gline->host ||
- '&' == *gline->host ||
- '+' == *gline->host) {
- BadChanGlineList = gline->next;
- }
- else
-#endif
- GlobalGlineList = gline->next;
+ gliter(GlobalGlineList, gline, sgline) {
+ send_reply(sptr, RPL_STATSGLINE, 'G', gline->gl_user,
+ gline->gl_host ? "@" : "",
+ gline->gl_host ? gline->gl_host : "",
+ gline->gl_expire, gline->gl_lastmod,
+ gline->gl_lifetime,
+ gline->gl_state == GLOCAL_ACTIVATED ? ">" :
+ (gline->gl_state == GLOCAL_DEACTIVATED ? "<" : ""),
+ GlineIsRemActive(gline) ? '+' : '-',
+ gline->gl_reason);
}
-
- MyFree(gline->host); /* and free up the memory */
- MyFree(gline->reason);
- MyFree(gline->name);
- MyFree(gline);
}
-void gline_remove_expired(time_t now)
+/** 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;
- struct Gline* prev = 0;
-
- for (gline = GlobalGlineList; gline; gline = gline->next) {
- if (gline->expire < now) {
- free_gline(gline, prev);
- gline = (prev) ? prev : GlobalGlineList;
- if (!gline)
- break;
- continue;
- }
- prev = gline;
+ 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;
}
-}
-#ifdef BADCHAN
-int bad_channel(const char* name)
-{
- struct Gline* agline = BadChanGlineList;
-
- while (agline)
- {
- if ((agline->gflags & GLINE_ACTIVE) && (agline->expire > TStime()) &&
- !mmatch(agline->host, name)) {
- return 1;
- }
- agline = agline->next;
+ for (gline = BadChanGlineList; 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 0;
-}
-void bad_channel_remove_expired(time_t now)
-{
- struct Gline* gline;
- struct Gline* prev = 0;
-
- for (gline = BadChanGlineList; gline; gline = gline->next) {
- if (gline->expire < now) {
- free_gline(gline, prev);
- gline = (prev) ? prev : BadChanGlineList;
- if (!gline)
- break;
- continue;
- }
- prev = gline;
- }
+ return gl;
}
-
-#endif
-
-
-void add_gline(struct Client *sptr, int ip_mask, char *host, char *comment,
- char *user, time_t expire, int local)
-{
- struct Client *acptr;
- struct Gline *agline;
- int fd;
- int gtype = 0;
- assert(0 != host);
-
-#ifdef BADCHAN
- if ('#' == *host || '&' == *host || '+' == *host)
- gtype = 1; /* BAD CHANNEL */
-#endif
-
- /* Inform ops */
- sendto_op_mask(SNO_GLINE,
- "%s adding %s%s for %s@%s, expiring at " TIME_T_FMT ": %s", sptr->name,
- local ? "local " : "",
- gtype ? "BADCHAN" : "GLINE", user, host, expire, comment);
-
-#ifdef GPATH
- write_log(GPATH,
- "# " TIME_T_FMT " %s adding %s %s for %s@%s, expiring at " TIME_T_FMT
- ": %s\n", TStime(), sptr->name, local ? "local" : "global",
- gtype ? "BADCHAN" : "GLINE", user, host, expire, comment);
-
- /* this can be inserted into the conf */
- if (!gtype)
- write_log(GPATH, "%c:%s:%s:%s\n", ip_mask ? 'k' : 'K', host, comment,
- user);
-#endif /* GPATH */
-
- agline = make_gline(ip_mask, host, comment, user, expire);
- if (local)
- SetGlineIsLocal(agline);
-
-#ifdef BADCHAN
- if (gtype)
- return;
-#endif
-
- for (fd = HighestFd; fd >= 0; --fd) {
- /*
- * get the users!
- */
- if ((acptr = LocalClientArray[fd])) {
- if (!acptr->user)
- continue;
-#if 0
- /*
- * whee!! :)
- */
- if (!acptr->user || strlen(acptr->sockhost) > HOSTLEN ||
- (acptr->user->username ? strlen(acptr->user->username) : 0) > HOSTLEN)
- continue; /* these tests right out of
- find_kill for safety's sake */
-#endif
-
- if ((GlineIsIpMask(agline) ? match(agline->host, acptr->sock_ip) :
- match(agline->host, acptr->sockhost)) == 0 &&
- (!acptr->user->username ||
- match(agline->name, acptr->user->username) == 0))
- {
-
- /* ok, he was the one that got G-lined */
- sendto_one(acptr, ":%s %d %s :*** %s.", me.name,
- ERR_YOUREBANNEDCREEP, acptr->name, agline->reason);
-
- /* let the ops know about my first kill */
- sendto_op_mask(SNO_GLINE, "G-line active for %s",
- get_client_name(acptr, FALSE));
-
- /* and get rid of him */
- if (sptr != acptr)
- exit_client_msg(sptr->from, acptr, &me, "G-lined (%s)", agline->reason);
- }
- }
- }
-}
-
-#endif /* 0 */