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102 lines
1.9 KiB
C
102 lines
1.9 KiB
C
/*
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* Copyright (C) 2015 Martine Lenders <mlenders@inf.fu-berlin.de>
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @{
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*
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* @file
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*/
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#include <stdio.h>
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#include <errno.h>
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#include "kernel_types.h"
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#include "net/gnrc/netif.h"
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#ifdef MODULE_GNRC_IPV6_NETIF
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#include "net/gnrc/ipv6/netif.h"
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#endif
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static gnrc_netif_handler_t if_handler[] = {
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#ifdef MODULE_GNRC_IPV6_NETIF
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{ gnrc_ipv6_netif_add, gnrc_ipv6_netif_remove },
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#endif
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/* #ifdef MODULE_GNRC_IPV4_NETIF
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* { ipv4_netif_add, ipv4_netif_remove },
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* #endif ... you get the idea
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*/
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{ NULL, NULL }
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};
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static kernel_pid_t ifs[GNRC_NETIF_NUMOF];
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void gnrc_netif_init(void)
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{
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for (int i = 0; i < GNRC_NETIF_NUMOF; i++) {
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ifs[i] = KERNEL_PID_UNDEF;
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}
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}
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int gnrc_netif_add(kernel_pid_t pid)
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{
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kernel_pid_t *free_entry = NULL;
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for (int i = 0; i < GNRC_NETIF_NUMOF; i++) {
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if (ifs[i] == pid) {
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return 0;
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}
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else if (ifs[i] == KERNEL_PID_UNDEF && !free_entry) {
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free_entry = &ifs[i];
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}
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}
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if (!free_entry) {
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return -ENOMEM;
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}
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*free_entry = pid;
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for (int j = 0; if_handler[j].add != NULL; j++) {
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if_handler[j].add(pid);
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}
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return 0;
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}
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void gnrc_netif_remove(kernel_pid_t pid)
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{
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int i;
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for (i = 0; i < GNRC_NETIF_NUMOF; i++) {
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if (ifs[i] == pid) {
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ifs[i] = KERNEL_PID_UNDEF;
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for (int j = 0; if_handler[j].remove != NULL; j++) {
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if_handler[j].remove(pid);
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}
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return;
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}
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}
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}
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size_t gnrc_netif_get(kernel_pid_t *netifs)
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{
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size_t size = 0;
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for (int i = 0; i < GNRC_NETIF_NUMOF; i++) {
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if (ifs[i] != KERNEL_PID_UNDEF) {
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netifs[size++] = ifs[i];
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}
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}
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return size;
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}
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/** @} */
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