+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#define pr_fmt(fmt) "llcp: %s: " fmt, __func__
#include "nfc.h"
#include "llcp.h"
-static u8 llcp_tlv_length[LLCP_TLV_MAX] = {
+static const u8 llcp_tlv_length[LLCP_TLV_MAX] = {
0,
1, /* VERSION */
2, /* MIUX */
};
-static u8 llcp_tlv8(u8 *tlv, u8 type)
+static u8 llcp_tlv8(const u8 *tlv, u8 type)
{
if (tlv[0] != type || tlv[1] != llcp_tlv_length[tlv[0]])
return 0;
return tlv[2];
}
-static u16 llcp_tlv16(u8 *tlv, u8 type)
+static u16 llcp_tlv16(const u8 *tlv, u8 type)
{
if (tlv[0] != type || tlv[1] != llcp_tlv_length[tlv[0]])
return 0;
}
-static u8 llcp_tlv_version(u8 *tlv)
+static u8 llcp_tlv_version(const u8 *tlv)
{
return llcp_tlv8(tlv, LLCP_TLV_VERSION);
}
-static u16 llcp_tlv_miux(u8 *tlv)
+static u16 llcp_tlv_miux(const u8 *tlv)
{
return llcp_tlv16(tlv, LLCP_TLV_MIUX) & 0x7ff;
}
-static u16 llcp_tlv_wks(u8 *tlv)
+static u16 llcp_tlv_wks(const u8 *tlv)
{
return llcp_tlv16(tlv, LLCP_TLV_WKS);
}
-static u16 llcp_tlv_lto(u8 *tlv)
+static u16 llcp_tlv_lto(const u8 *tlv)
{
return llcp_tlv8(tlv, LLCP_TLV_LTO);
}
-static u8 llcp_tlv_opt(u8 *tlv)
+static u8 llcp_tlv_opt(const u8 *tlv)
{
return llcp_tlv8(tlv, LLCP_TLV_OPT);
}
-static u8 llcp_tlv_rw(u8 *tlv)
+static u8 llcp_tlv_rw(const u8 *tlv)
{
return llcp_tlv8(tlv, LLCP_TLV_RW) & 0xf;
}
-u8 *nfc_llcp_build_tlv(u8 type, u8 *value, u8 value_length, u8 *tlv_length)
+u8 *nfc_llcp_build_tlv(u8 type, const u8 *value, u8 value_length, u8 *tlv_length)
{
u8 *tlv, length;
return sdres;
}
-struct nfc_llcp_sdp_tlv *nfc_llcp_build_sdreq_tlv(u8 tid, char *uri,
+struct nfc_llcp_sdp_tlv *nfc_llcp_build_sdreq_tlv(u8 tid, const char *uri,
size_t uri_len)
{
struct nfc_llcp_sdp_tlv *sdreq;
}
int nfc_llcp_parse_gb_tlv(struct nfc_llcp_local *local,
- u8 *tlv_array, u16 tlv_array_len)
+ const u8 *tlv_array, u16 tlv_array_len)
{
- u8 *tlv = tlv_array, type, length, offset = 0;
+ const u8 *tlv = tlv_array;
+ u8 type, length, offset = 0;
pr_debug("TLV array length %d\n", tlv_array_len);
}
int nfc_llcp_parse_connection_tlv(struct nfc_llcp_sock *sock,
- u8 *tlv_array, u16 tlv_array_len)
+ const u8 *tlv_array, u16 tlv_array_len)
{
- u8 *tlv = tlv_array, type, length, offset = 0;
+ const u8 *tlv = tlv_array;
+ u8 type, length, offset = 0;
pr_debug("TLV array length %d\n", tlv_array_len);
return pdu;
}
-static struct sk_buff *llcp_add_tlv(struct sk_buff *pdu, u8 *tlv,
+static struct sk_buff *llcp_add_tlv(struct sk_buff *pdu, const u8 *tlv,
u8 tlv_length)
{
/* XXX Add an skb length check */
{
struct nfc_llcp_local *local;
struct sk_buff *skb;
- u8 *service_name_tlv = NULL, service_name_tlv_length;
- u8 *miux_tlv = NULL, miux_tlv_length;
- u8 *rw_tlv = NULL, rw_tlv_length, rw;
+ const u8 *service_name_tlv = NULL;
+ const u8 *miux_tlv = NULL;
+ const u8 *rw_tlv = NULL;
+ u8 service_name_tlv_length, miux_tlv_length, rw_tlv_length, rw;
int err;
u16 size = 0;
__be16 miux;
{
struct nfc_llcp_local *local;
struct sk_buff *skb;
- u8 *miux_tlv = NULL, miux_tlv_length;
- u8 *rw_tlv = NULL, rw_tlv_length, rw;
+ const u8 *miux_tlv = NULL;
+ const u8 *rw_tlv = NULL;
+ u8 miux_tlv_length, rw_tlv_length, rw;
int err;
u16 size = 0;
__be16 miux;