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/* |
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* uplink.C: Uplink management. |
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* Rights to this code are documented in doc/pod/license.pod. |
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* |
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* Copyright © 2005-2007 Atheme Project (http://www.atheme.org) |
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*/ |
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|
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static char const rcsid[] = "$Id$"; |
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|
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#include "atheme.h" |
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#include "datastream.h" |
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#include "uplink.h" |
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|
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list_t uplinks; |
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uplink_t *curr_uplink; |
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|
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static BlockHeap *uplink_heap; |
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|
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static void uplink_close (connection_t *cptr); |
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|
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void |
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init_uplinks (void) |
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{ |
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uplink_heap = BlockHeapCreate (sizeof (uplink_t), 4); |
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if (!uplink_heap) |
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{ |
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slog (LG_INFO, "init_uplinks(): block allocator failed."); |
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exit (EXIT_FAILURE); |
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} |
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} |
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|
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uplink_t * |
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uplink_add (char *name, char *host, char *password, char *vhost, int port) |
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{ |
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uplink_t *u; |
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node_t *n; |
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|
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slog (LG_DEBUG, "uplink_add(): %s -> %s:%d", me.name, name, port); |
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|
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if ((u = uplink_find (name))) |
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{ |
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if (u->flags & UPF_ILLEGAL) |
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{ |
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u->flags &= ~UPF_ILLEGAL; |
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free (u->name); |
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free (u->host); |
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free (u->pass); |
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free (u->vhost); |
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} |
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else |
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{ |
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slog (LG_INFO, "Duplicate uplink %s.", name); |
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return NULL; |
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} |
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} |
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else |
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{ |
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u = static_cast<uplink_t *> (BlockHeapAlloc (uplink_heap)); |
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n = node_create (); |
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u->node = n; |
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node_add (u, n, &uplinks); |
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cnt.uplink++; |
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} |
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|
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u->name = sstrdup (name); |
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u->host = sstrdup (host); |
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u->pass = sstrdup (password); |
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if (vhost) |
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u->vhost = sstrdup (vhost); |
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else |
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u->vhost = sstrdup ("0.0.0.0"); |
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u->port = port; |
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|
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return u; |
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} |
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|
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void |
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uplink_delete (uplink_t *u) |
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{ |
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node_t *n = node_find (u, &uplinks); |
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|
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free (u->name); |
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free (u->host); |
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free (u->pass); |
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free (u->vhost); |
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|
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node_del (n, &uplinks); |
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node_free (n); |
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|
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BlockHeapFree (uplink_heap, u); |
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cnt.uplink--; |
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} |
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|
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uplink_t * |
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uplink_find (char *name) |
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{ |
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node_t *n; |
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|
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LIST_FOREACH (n, uplinks.head) |
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{ |
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uplink_t *u = static_cast<uplink_t *> (n->data); |
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|
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if (!strcasecmp (u->name, name)) |
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return u; |
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} |
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|
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return NULL; |
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} |
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|
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void |
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uplink_connect (void) |
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{ |
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uplink_t *u; |
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|
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if (curr_uplink == NULL) |
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{ |
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if (uplinks.head == NULL) |
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{ |
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slog (LG_ERROR, "uplink_connect(): no uplinks configured, exiting. Make sure to have at least one uplink{} block in your configuration file."); |
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exit (EXIT_FAILURE); |
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} |
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curr_uplink = static_cast<uplink_t *> (uplinks.head->data); |
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slog (LG_INFO, "uplink_connect(): connecting to first entry %s[%s]:%d.", curr_uplink->name, curr_uplink->host, curr_uplink->port); |
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} |
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else if (curr_uplink->node->next) |
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{ |
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u = static_cast<uplink_t *> (curr_uplink->node->next->data); |
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|
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curr_uplink = u; |
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slog (LG_INFO, "uplink_connect(): trying alternate uplink %s[%s]:%d", curr_uplink->name, curr_uplink->host, curr_uplink->port); |
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} |
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else |
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{ |
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curr_uplink = static_cast<uplink_t *> (uplinks.head->data); |
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slog (LG_INFO, "uplink_connect(): trying again first entry %s[%s]:%d", curr_uplink->name, curr_uplink->host, curr_uplink->port); |
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} |
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|
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u = curr_uplink; |
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|
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curr_uplink->conn = connection_open_tcp (u->host, u->vhost, u->port, recvq_put, sendq_flush); |
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if (curr_uplink->conn != NULL) |
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curr_uplink->conn->close_handler = uplink_close; |
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else |
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event_add_once ("reconn", reconn, NULL, me.recontime); |
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} |
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|
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/* |
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* uplink_close() |
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* |
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* inputs: |
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* connection pointer of current uplink |
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* triggered by callback close_handler |
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* |
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* outputs: |
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* none |
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* |
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* side effects: |
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* reconnection is scheduled |
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* uplink marked dead |
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* uplink deleted if it had been removed from configuration |
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*/ |
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static void |
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uplink_close (connection_t *cptr) |
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{ |
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channel_t *c; |
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dictionary_iteration_state_t state; |
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|
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event_add_once ("reconn", reconn, NULL, me.recontime); |
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|
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me.connected = false; |
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|
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if (curr_uplink->flags & UPF_ILLEGAL) |
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{ |
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slog (LG_INFO, "uplink_close(): %s was removed from configuration, deleting", curr_uplink->name); |
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uplink_delete (curr_uplink); |
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if (uplinks.head == NULL) |
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{ |
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slog (LG_ERROR, "uplink_close(): last uplink deleted, exiting."); |
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exit (EXIT_FAILURE); |
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} |
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curr_uplink = static_cast<uplink_t *> (uplinks.head->data); |
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} |
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curr_uplink->conn = NULL; |
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|
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slog (LG_DEBUG, "uplink_close(): ----------------------- clearing -----------------------"); |
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|
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/* we have to kill everything. |
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* we do not clear users here because when you delete a server, |
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* it deletes its users |
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*/ |
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if (me.actual != NULL) |
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server_delete (me.actual); |
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me.actual = NULL; |
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/* remove all the channels left */ |
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DICTIONARY_FOREACH (c, channel_t, &state, chanlist) |
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{ |
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channel_delete (c); |
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} |
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/* this leaves me.me and all users on it (i.e. services) */ |
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|
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slog (LG_DEBUG, "uplink_close(): ------------------------- done -------------------------"); |
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} |
