333 lines
6.2 KiB
C
333 lines
6.2 KiB
C
/*
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This file is part of libcapwap.
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libcapwap is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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libcapwap is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Foobar. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file
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* @brief Implementation of methods for actionlists.
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*/
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#include "mbag.h"
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#include <stdlib.h>
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#include <string.h>
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#include "action.h"
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/* ---------------------------------------------
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* cw_actionlist_in stuff
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*/
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static int cw_action_in_cmp(const void *elem1, const void *elem2)
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{
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struct cw_action_in *e1 = (struct cw_action_in *) elem1;
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struct cw_action_in *e2 = (struct cw_action_in *) elem2;
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int r;
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r = e1->capwap_state - e2->capwap_state;
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if (r != 0)
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return r;
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r = e1->msg_id - e2->msg_id;
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if (r != 0)
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return r;
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r = e1->elem_id - e2->elem_id;
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if (r != 0)
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return r;
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r = e1->vendor_id - e2->vendor_id;
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if (r != 0)
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return r;
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r = e1->proto - e2->proto;
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if (r != 0)
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return r;
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return 0;
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}
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/**
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* Create an action list for incomming messages
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* @return the create list or NULL if an error has occured
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*/
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cw_actionlist_in_t cw_actionlist_in_create()
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{
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return mavl_create(cw_action_in_cmp, free);
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}
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/**
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* Add an element to an "in-list"
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* @param t action list to elem to
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* @param a element to add
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* @rturn a pointer to the added element
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*/
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cw_action_in_t *cw_actionlist_in_add(cw_actionlist_in_t t, struct cw_action_in * a)
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{
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int s = sizeof(struct cw_action_in);
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void *r = mavl_replace_data(t, a, s);
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if (r)
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return r;
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void *an = malloc(s);
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if (!an)
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return NULL;
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memcpy(an, a, s);
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return mavl_add(t, an);
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}
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/**
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* Get an element from an actionlist_in
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* @param t action list
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* @param a element to search for
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* @return the elemen or NULL if not found
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*/
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struct cw_action_in *cw_actionlist_in_get(cw_actionlist_in_t t, struct cw_action_in *a)
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{
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return mavl_get(t, a);
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}
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/**
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* Register actions in an action list for incommin messages
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* @param t action list, where messaes will be registered
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* @param actions an array of actions to reggister
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* @return the number of registred actions
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*/
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int cw_actionlist_in_register_actions(cw_actionlist_in_t t, cw_action_in_t * actions)
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{
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int n=0;
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while (actions->capwap_state) {
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cw_action_in_t *rc = cw_actionlist_in_add(t, actions);
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if (!rc)
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return 0;
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actions++;
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n++;
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}
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return n;
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}
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/* ---------------------------------------------
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* cw_actionlist_out stuff
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*/
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struct outelem{
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uint32_t msg_id;
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mlist_t * mlist;
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};
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static int mout_cmp(void *elem1,void *elem2)
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{
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struct cw_action_out *e1 = (struct cw_action_out *) elem1;
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struct cw_action_out *e2 = (struct cw_action_out *) elem2;
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int r;
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r = e1->msg_id - e2->msg_id;
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if (r )
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return r;
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r = e1->elem_id - e2->elem_id;
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if (r )
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return r;
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r = e1->vendor_id - e2->vendor_id;
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if (r )
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return r;
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if (e1->item_id == e2->item_id)
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return 0;
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if (e1->item_id && e2->item_id)
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return strcmp(e1->item_id,e2->item_id);
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return 1;
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}
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struct outelem * cw_actionlist_mout_create(int msg_id)
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{
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struct outelem * o = malloc(sizeof(struct outelem));
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if (!o)
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return NULL;
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o->mlist= mlist_create(mout_cmp);
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if (!o->mlist){
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free(o);
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return NULL;
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}
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o->msg_id=msg_id;
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return o;
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}
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static struct outelem * cw_actionlist_out_get_outelem(cw_actionlist_out_t t, int msg_id)
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{
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struct outelem search;
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search.msg_id=msg_id;
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return mavl_get(t,&search);
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}
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/*
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* Compare function for actionlist_out_t lists
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*/
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static int cw_action_out_cmp(const void *elem1, const void *elem2)
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{
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struct outelem *e1 = (struct outelem *) elem1;
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struct outelem *e2 = (struct outelem *) elem2;
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return e1->msg_id - e2->msg_id;
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}
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/**
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* Add an element to an actionlist_out
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* @param t action list
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* @param a element to add
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*/
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cw_action_out_t *cw_actionlist_out_add(cw_actionlist_out_t t, struct cw_action_out * a)
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{
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struct outelem * o = cw_actionlist_out_get_outelem(t,a->msg_id);
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if (!o){
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o = cw_actionlist_mout_create(a->msg_id);
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if (!o) {
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return NULL;
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}
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mavl_add(t,o);
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}
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struct mlist_elem * e = mlist_replace(o->mlist,NULL,a);
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if (!e)
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e = mlist_append(o->mlist,a);
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if (e)
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return a;
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return 0;
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}
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/**
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* Register actions in an action list for incommin messages
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* @param t action list, where messaes will be registered
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* @param actions an array of actions to reggister
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* @return the number of registred actions
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*/
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int cw_actionlist_out_register_actions(cw_actionlist_out_t t, cw_action_out_t * actions)
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{
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int n=0;
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while (actions->msg_id != 0) {
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cw_action_out_t *rc = cw_actionlist_out_add(t, actions);
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if (rc == 0)
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return 0;
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actions++;
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n++;
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}
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return n;
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}
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/**
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* Add an action to an action
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* @param t actionlist
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* @param a action to add
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* @param s size of element to add
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* @return pointer to added element or NULL if an error has opccured
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*/
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void *cw_actionlist_add(struct mavl *t, void *a, size_t s)
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{
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void *r = mavl_replace_data(t, a, s); //sizeof(struct cw_action_in));
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if (r) {
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return r;
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}
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void *an = malloc(s);
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if (!an)
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return NULL;
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memcpy(an, a, s);
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return mavl_add(t, an);
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}
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/**
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* Create an action list for outgoing message lements
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* @return the created action list or NULL if an erro has occured.
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*/
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cw_actionlist_out_t cw_actionlist_out_create()
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{
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return mavl_create(cw_action_out_cmp, free);
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}
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mlist_t * cw_actionlist_out_get(cw_actionlist_out_t t,int msg_id)
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{
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struct outelem *o = cw_actionlist_out_get_outelem(t,msg_id);
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if (!o)
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return NULL;
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return o->mlist;
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}
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/* misc stuff */
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cw_action_fun_t cw_set_msg_end_callback(struct cw_actiondef *actions,
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int capwap_state,int msg_id, cw_action_fun_t callback)
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{
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cw_action_in_t as;
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as.capwap_state = capwap_state;
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as.msg_id = msg_id;
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as.vendor_id = 0;
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as.elem_id = 0;
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as.proto = 0;
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cw_action_in_t *af;
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af = cw_actionlist_in_get(actions->in, &as);
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if (!af)
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return NULL;
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cw_action_fun_t old = af->end;
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af->end =callback;
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return old;
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}
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