0e91493ab4
Make the channel ops struct const since there really isn't anything there that needs to change at runtime. The only exception is the L2CAP shell which was playing with the recv callback, however that can be fixed by introducing a simple bool variable. With tests/bluetooth/shell this reduces RAM consumption by 112 bytes while adding only 16 bytes to flash consumption. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
102 lines
2.0 KiB
C
102 lines
2.0 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.h>
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#include <errno.h>
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#include <sys/atomic.h>
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#include <sys/util.h>
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#include <bluetooth/bluetooth.h>
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#include <bluetooth/conn.h>
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#include <bluetooth/buf.h>
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#define BT_DBG_ENABLED IS_ENABLED(CONFIG_BT_DEBUG_HCI_CORE)
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#define LOG_MODULE_NAME bt_smp
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#include "common/log.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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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 *buf)
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{
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struct bt_conn *conn = chan->conn;
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struct bt_smp_pairing_fail *rsp;
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struct bt_smp_hdr *hdr;
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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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bt_l2cap_send(conn, BT_L2CAP_CID_SMP, buf);
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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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BT_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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BT_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);
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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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