mirror of
https://github.com/matrix-construct/construct
synced 2024-08-31 05:45:16 +02:00
214 lines
4.7 KiB
C
214 lines
4.7 KiB
C
/*
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* charybdis: an advanced ircd.
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* privilege.c: Dynamic privileges API.
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*
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* Copyright (c) 2008 William Pitcock <nenolod@dereferenced.org>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice is present in all copies.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdinc.h>
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#include "s_conf.h"
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#include "privilege.h"
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#include "numeric.h"
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#include "s_assert.h"
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#include "logger.h"
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#include "send.h"
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static rb_dlink_list privilegeset_list = {NULL, NULL, 0};
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int
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privilegeset_in_set(struct PrivilegeSet *set, const char *priv)
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{
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s_assert(set != NULL);
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s_assert(priv != NULL);
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return strstr(set->privs, priv) != NULL;
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}
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static struct PrivilegeSet *
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privilegeset_get_any(const char *name)
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{
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rb_dlink_node *iter;
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s_assert(name != NULL);
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RB_DLINK_FOREACH(iter, privilegeset_list.head)
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{
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struct PrivilegeSet *set = (struct PrivilegeSet *) iter->data;
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if (!strcasecmp(set->name, name))
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return set;
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}
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return NULL;
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}
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struct PrivilegeSet *
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privilegeset_set_new(const char *name, const char *privs, PrivilegeFlags flags)
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{
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struct PrivilegeSet *set;
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set = privilegeset_get_any(name);
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if (set != NULL)
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{
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if (!(set->status & CONF_ILLEGAL))
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ilog(L_MAIN, "Duplicate privset %s", name);
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set->status &= ~CONF_ILLEGAL;
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rb_free(set->privs);
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}
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else
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{
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set = rb_malloc(sizeof(struct PrivilegeSet));
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set->status = 0;
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set->refs = 0;
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set->name = rb_strdup(name);
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rb_dlinkAdd(set, &set->node, &privilegeset_list);
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}
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set->privs = rb_strdup(privs);
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set->flags = flags;
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return set;
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}
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struct PrivilegeSet *
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privilegeset_extend(struct PrivilegeSet *parent, const char *name, const char *privs, PrivilegeFlags flags)
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{
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struct PrivilegeSet *set;
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s_assert(parent != NULL);
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s_assert(name != NULL);
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s_assert(privs != NULL);
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set = privilegeset_get_any(name);
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if (set != NULL)
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{
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if (!(set->status & CONF_ILLEGAL))
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ilog(L_MAIN, "Duplicate privset %s", name);
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set->status &= ~CONF_ILLEGAL;
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rb_free(set->privs);
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}
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else
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{
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set = rb_malloc(sizeof(struct PrivilegeSet));
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set->status = 0;
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set->refs = 0;
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set->name = rb_strdup(name);
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rb_dlinkAdd(set, &set->node, &privilegeset_list);
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}
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set->flags = flags;
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set->privs = rb_malloc(strlen(parent->privs) + 1 + strlen(privs) + 1);
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strcpy(set->privs, parent->privs);
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strcat(set->privs, " ");
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strcat(set->privs, privs);
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return set;
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}
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struct PrivilegeSet *
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privilegeset_get(const char *name)
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{
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struct PrivilegeSet *set;
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set = privilegeset_get_any(name);
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if (set != NULL && set->status & CONF_ILLEGAL)
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set = NULL;
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return set;
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}
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struct PrivilegeSet *
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privilegeset_ref(struct PrivilegeSet *set)
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{
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s_assert(set != NULL);
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set->refs++;
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return set;
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}
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void
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privilegeset_unref(struct PrivilegeSet *set)
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{
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s_assert(set != NULL);
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if (set->refs > 0)
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set->refs--;
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else
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ilog(L_MAIN, "refs on privset %s is already 0",
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set->name);
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if (set->refs == 0 && set->status & CONF_ILLEGAL)
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{
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rb_dlinkDelete(&set->node, &privilegeset_list);
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rb_free(set->name);
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rb_free(set->privs);
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rb_free(set);
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}
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}
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void
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privilegeset_mark_all_illegal(void)
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{
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rb_dlink_node *iter;
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RB_DLINK_FOREACH(iter, privilegeset_list.head)
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{
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struct PrivilegeSet *set = (struct PrivilegeSet *) iter->data;
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/* the "default" privset is special and must remain available */
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if (!strcmp(set->name, "default"))
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continue;
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set->status |= CONF_ILLEGAL;
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rb_free(set->privs);
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set->privs = rb_strdup("");
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/* but do not free it yet */
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}
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}
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void
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privilegeset_delete_all_illegal(void)
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{
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rb_dlink_node *iter, *next;
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RB_DLINK_FOREACH_SAFE(iter, next, privilegeset_list.head)
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{
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struct PrivilegeSet *set = (struct PrivilegeSet *) iter->data;
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privilegeset_ref(set);
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privilegeset_unref(set);
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}
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}
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void
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privilegeset_report(struct Client *source_p)
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{
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rb_dlink_node *ptr;
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RB_DLINK_FOREACH(ptr, privilegeset_list.head)
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{
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struct PrivilegeSet *set = ptr->data;
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/* use RPL_STATSDEBUG for now -- jilles */
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sendto_one_numeric(source_p, RPL_STATSDEBUG,
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"O :%s %s",
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set->name,
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set->privs);
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}
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}
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