107 lines
2.2 KiB
C
107 lines
2.2 KiB
C
/**
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* @file smp_null.c
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* Security Manager Protocol stub
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*/
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/*
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* Copyright (c) 2015-2016 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/kernel.h>
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#include <errno.h>
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#include <zephyr/sys/atomic.h>
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#include <zephyr/sys/util.h>
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#include <zephyr/bluetooth/bluetooth.h>
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#include <zephyr/bluetooth/conn.h>
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#include <zephyr/bluetooth/buf.h>
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#include "hci_core.h"
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#include "conn_internal.h"
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#include "l2cap_internal.h"
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#include "smp.h"
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#define LOG_LEVEL CONFIG_BT_HCI_CORE_LOG_LEVEL
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#include <zephyr/logging/log.h>
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LOG_MODULE_REGISTER(bt_smp);
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static struct bt_l2cap_le_chan bt_smp_pool[CONFIG_BT_MAX_CONN];
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int bt_smp_sign_verify(struct bt_conn *conn, struct net_buf *buf)
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{
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return -ENOTSUP;
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}
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int bt_smp_sign(struct bt_conn *conn, struct net_buf *buf)
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{
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return -ENOTSUP;
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}
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static int bt_smp_recv(struct bt_l2cap_chan *chan, struct net_buf *req_buf)
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{
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struct bt_l2cap_le_chan *le_chan = BT_L2CAP_LE_CHAN(chan);
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struct bt_smp_pairing_fail *rsp;
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struct bt_smp_hdr *hdr;
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struct net_buf *buf;
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ARG_UNUSED(req_buf);
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/* If a device does not support pairing then it shall respond with
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* a Pairing Failed command with the reason set to "Pairing Not
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* Supported" when any command is received.
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* Core Specification Vol. 3, Part H, 3.3
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*/
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buf = bt_l2cap_create_pdu(NULL, 0);
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/* NULL is not a possible return due to K_FOREVER */
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hdr = net_buf_add(buf, sizeof(*hdr));
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hdr->code = BT_SMP_CMD_PAIRING_FAIL;
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rsp = net_buf_add(buf, sizeof(*rsp));
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rsp->reason = BT_SMP_ERR_PAIRING_NOTSUPP;
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if (bt_l2cap_send_pdu(le_chan, buf, NULL, NULL)) {
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net_buf_unref(buf);
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}
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return 0;
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}
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static int bt_smp_accept(struct bt_conn *conn, struct bt_l2cap_chan **chan)
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{
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int i;
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static const struct bt_l2cap_chan_ops ops = {
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.recv = bt_smp_recv,
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};
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LOG_DBG("conn %p handle %u", conn, conn->handle);
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for (i = 0; i < ARRAY_SIZE(bt_smp_pool); i++) {
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struct bt_l2cap_le_chan *smp = &bt_smp_pool[i];
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if (smp->chan.conn) {
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continue;
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}
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smp->chan.ops = &ops;
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*chan = &smp->chan;
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return 0;
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}
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LOG_ERR("No available SMP context for conn %p", conn);
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return -ENOMEM;
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}
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BT_L2CAP_CHANNEL_DEFINE(smp_fixed_chan, BT_L2CAP_CID_SMP, bt_smp_accept, NULL);
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int bt_smp_init(void)
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{
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return 0;
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}
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