* or be disallowed by leaf and hub configuration directives.
* @param[in] cptr Neighbor who sent the message.
* @param[in] sptr Client that originated the message.
- * @param[in] LHcptr Who to SQUIT on error (if NULL, SQUIT new server).
- * @param[in] lhconf Leaf or hub configuration block to use.
* @param[out] ghost If non-NULL, receives ghost timestamp for new server.
* @param[in] host Name of new server.
* @param[in] numnick Numnick mask of new server.
* @param[in] timestamp Claimed link timestamp of new server.
- * @param[in] active_lh_line Pseudo-enum value for rejection reason.
- * 0 means no leaf or hub restrictions. 1 means \a lhconf is a leaf
- * rule. 2 means \a lhconf is a hub rule. 3 means #me does not have
- * the HUB feature but already has a server link.
+ * @param[in] hop Number of hops to the new server.
+ * @param[in] junction Non-zero if the new server is still bursting.
* @return CPTR_KILLED if \a cptr was SQUIT. 0 if some other server
* was SQUIT. 1 if the new server is allowed.
*/
static int
-check_loop_and_lh(struct Client* cptr, struct Client *sptr, struct Client *LHcptr, struct ConfItem *lhconf, time_t *ghost, const char *host, const char *numnick, time_t timestamp, int active_lh_line)
+check_loop_and_lh(struct Client* cptr, struct Client *sptr, time_t *ghost, const char *host, const char *numnick, time_t timestamp, int hop, int junction)
{
struct Client* acptr;
+ struct Client* LHcptr = NULL;
+ struct ConfItem* lhconf;
+ int active_lh_line = 0, ii;
if (ghost)
*ghost = 0;
+ /*
+ * Calculate type of connect limit and applicable config item.
+ */
+ lhconf = find_conf_byname(cli_confs(cptr), host, CONF_SERVER);
+ assert(lhconf != NULL);
+ if (cptr == sptr)
+ {
+ if (!feature_bool(FEAT_HUB))
+ for (ii = 0; ii <= HighestFd; ii++)
+ if (LocalClientArray[ii] && IsServer(LocalClientArray[ii])) {
+ active_lh_line = 3;
+ break;
+ }
+ }
+ else if (hop > lhconf->maximum)
+ {
+ active_lh_line = 1;
+ }
+ else if (lhconf->hub_limit && match(lhconf->hub_limit, host))
+ {
+ struct Client *ac3ptr;
+ active_lh_line = 2;
+ if (junction)
+ for (ac3ptr = sptr; ac3ptr != &me; ac3ptr = cli_serv(ac3ptr)->up)
+ if (IsJunction(ac3ptr)) {
+ LHcptr = ac3ptr;
+ break;
+ }
+ }
+
/*
* We want to find IsConnecting() and IsHandshake() too,
* use FindClient().
if (active_lh_line)
{
- if (LHcptr == 0) {
- return exit_new_server(cptr, sptr, host, timestamp,
- (active_lh_line == 2) ? "Non-Hub link %s <- %s(%s), check H:" :
- "Leaf-only link %s <- %s(%s), check L:",
- cli_name(cptr), host,
- lhconf ? (lhconf->name ? lhconf->name : "*") : "!");
+ int killed = 0;
+ if (LHcptr)
+ killed = a_kills_b_too(LHcptr, sptr);
+ else
+ LHcptr = sptr;
+ if (active_lh_line == 1)
+ {
+ if (exit_client_msg(cptr, LHcptr, &me,
+ "Leaf-only link %s <- %s, check L:",
+ cli_name(cptr), host) == CPTR_KILLED)
+ return CPTR_KILLED;
+ }
+ else if (active_lh_line == 2)
+ {
+ if (exit_client_msg(cptr, LHcptr, &me,
+ "Non-Hub link %s <- %s, check H:",
+ cli_name(cptr), host) == CPTR_KILLED)
+ return CPTR_KILLED;
}
else
{
- int killed = a_kills_b_too(LHcptr, sptr);
- if (active_lh_line < 3)
- {
- if (exit_client_msg(cptr, LHcptr, &me,
- (active_lh_line == 2) ? "Non-Hub link %s <- %s(%s), check H:" :
- "Leaf-only link %s <- %s(%s), check L:",
- cli_name(cptr), host,
- lhconf ? (lhconf->name ? lhconf->name : "*") : "!") == CPTR_KILLED)
- return CPTR_KILLED;
- }
- else
- {
- ServerStats->is_ref++;
- if (exit_client(cptr, LHcptr, &me, "I'm a leaf, define HUB") == CPTR_KILLED)
- return CPTR_KILLED;
- }
- /*
- * Did we kill the incoming server off already ?
- */
- if (killed)
- return 0;
+ ServerStats->is_ref++;
+ if (exit_client(cptr, LHcptr, &me, "I'm a leaf, define HUB") == CPTR_KILLED)
+ return CPTR_KILLED;
}
+ /*
+ * Did we kill the incoming server off already ?
+ */
+ if (killed)
+ return 0;
}
return 1;
int mr_server(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
{
char* ch;
- int i;
char* host;
- const char* encr;
struct ConfItem* aconf;
struct Jupe* ajupe;
int hop;
int ret;
- int active_lh_line = 0;
unsigned short prot;
time_t start_timestamp;
time_t timestamp;
return exit_client_msg(cptr, cptr, &me,
"Access denied. No conf line for server %s", cli_name(cptr));
}
- encr = cli_passwd(cptr);
- if (*aconf->passwd && !!strcmp(aconf->passwd, encr)) {
+ if (*aconf->passwd && !!strcmp(aconf->passwd, cli_passwd(cptr))) {
++ServerStats->is_ref;
sendto_opmask_butone(0, SNO_OLDSNO, "Access denied (passwd mismatch) %s",
cli_name(cptr));
memset(cli_passwd(cptr), 0, sizeof(cli_passwd(cptr)));
- if (!feature_bool(FEAT_HUB)) {
- for (i = 0; i <= HighestFd; i++)
- if (LocalClientArray[i] && IsServer(LocalClientArray[i])) {
- active_lh_line = 3;
- break;
- }
- }
-
- ret = check_loop_and_lh(cptr, sptr, NULL, NULL, &ghost, host, (parc > 7 ? parv[6] : NULL), timestamp, active_lh_line);
+ ret = check_loop_and_lh(cptr, sptr, &ghost, host, (parc > 7 ? parv[6] : NULL), timestamp, hop, 1);
if (ret != 1)
return ret;
char* host;
struct Client* acptr;
struct Client* bcptr;
- struct Client* LHcptr;
- struct ConfItem* lhconf;
int hop;
int ret;
- int active_lh_line = 0;
unsigned short prot;
time_t start_timestamp;
time_t timestamp;
return exit_client_msg(cptr, sptr, &me,
"Bogus timestamps (%s %s)", parv[3], parv[4]);
- /*
- * A local server introduces a new server behind this link.
- * Check if this is allowed according L:, H: and Q: lines.
- */
if (parv[parc - 1][0] == '\0')
return exit_client_msg(cptr, cptr, &me,
"No server info specified for %s", host);
- /*
- * See if the newly found server is behind a guaranteed
- * leaf (L-line). If so, close the link.
- */
- if ((lhconf = find_conf_byhost(cli_confs(cptr), cli_name(cptr), CONF_LEAF)) &&
- (!lhconf->address.port || (hop > lhconf->address.port)))
- {
- /*
- * L: lines normally come in pairs, here we try to
- * make sure that the oldest link is squitted, not
- * both.
- */
- active_lh_line = 1;
- if (timestamp <= cli_serv(cptr)->timestamp)
- LHcptr = 0; /* Kill incoming server */
- else
- LHcptr = cptr; /* Squit ourselfs */
- }
- else if (!(lhconf = find_conf_byname(cli_confs(cptr), cli_name(cptr), CONF_HUB)) ||
- (lhconf->address.port && (hop > lhconf->address.port)) ||
- (!BadPtr(lhconf->host) && match(lhconf->host, host)))
- {
- struct Client *ac3ptr;
- active_lh_line = 2;
- /* Look for net junction causing this: */
- LHcptr = 0; /* incoming server */
- if (*parv[5] != 'J') {
- for (ac3ptr = sptr; ac3ptr != &me; ac3ptr = cli_serv(ac3ptr)->up) {
- if (IsJunction(ac3ptr)) {
- LHcptr = ac3ptr;
- break;
- }
- }
- }
- }
- ret = check_loop_and_lh(cptr, sptr, LHcptr, lhconf, NULL, host, (parc > 7 ? parv[6] : NULL), timestamp, active_lh_line);
+ ret = check_loop_and_lh(cptr, sptr, NULL, host, (parc > 7 ? parv[6] : NULL), timestamp, hop, parv[5][0] == 'J');
if (ret != 1)
return ret;
projects / ircu2.10.12-pk.git / blobdiff