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linux/arch/mips/bcm47xx/board.c
Jason Wang 906c6bc6e8 MIPS: BCM47XX: Replace strlcpy with strscpy 
The strlcpy should not be used because it doesn't limit the source
length. As linus says, it's a completely useless function if you
can't implicitly trust the source string - but that is almost always
why people think they should use it! All in all the BSD function
will lead some potential bugs.

But the strscpy doesn't require reading memory from the src string
beyond the specified "count" bytes, and since the return value is
easier to error-check than strlcpy()'s. In addition, the implementation
is robust to the string changing out from underneath it, unlike the
current strlcpy() implementation.

Thus, We prefer using strscpy instead of strlcpy.

Signed-off-by: Jason Wang <wangborong@cdjrlc.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-12-16 15:56:25 +01:00

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// SPDX-License-Identifier: GPL-2.0
#include <linux/errno.h>
#include <linux/export.h>
#include <linux/string.h>
#include <bcm47xx.h>
#include <bcm47xx_board.h>
struct bcm47xx_board_type {
const enum bcm47xx_board board;
const char *name;
};
struct bcm47xx_board_type_list1 {
struct bcm47xx_board_type board;
const char *value1;
};
struct bcm47xx_board_type_list2 {
struct bcm47xx_board_type board;
const char *value1;
const char *value2;
};
struct bcm47xx_board_type_list3 {
struct bcm47xx_board_type board;
const char *value1;
const char *value2;
const char *value3;
};
struct bcm47xx_board_store {
enum bcm47xx_board board;
char name[BCM47XX_BOARD_MAX_NAME];
};
/* model_name */
static const
struct bcm47xx_board_type_list1 bcm47xx_board_list_model_name[] __initconst = {
{{BCM47XX_BOARD_DLINK_DIR130, "D-Link DIR-130"}, "DIR-130"},
{{BCM47XX_BOARD_DLINK_DIR330, "D-Link DIR-330"}, "DIR-330"},
{ {0}, NULL},
};
/* hardware_version */
static const
struct bcm47xx_board_type_list1 bcm47xx_board_list_hardware_version[] __initconst = {
{{BCM47XX_BOARD_ASUS_RTN10U, "Asus RT-N10U"}, "RTN10U"},
{{BCM47XX_BOARD_ASUS_RTN10D, "Asus RT-N10D"}, "RTN10D"},
{{BCM47XX_BOARD_ASUS_RTN12, "Asus RT-N12"}, "RT-N12"},
{{BCM47XX_BOARD_ASUS_RTN12B1, "Asus RT-N12B1"}, "RTN12B1"},
{{BCM47XX_BOARD_ASUS_RTN12C1, "Asus RT-N12C1"}, "RTN12C1"},
{{BCM47XX_BOARD_ASUS_RTN12D1, "Asus RT-N12D1"}, "RTN12D1"},
{{BCM47XX_BOARD_ASUS_RTN12HP, "Asus RT-N12HP"}, "RTN12HP"},
{{BCM47XX_BOARD_ASUS_RTN16, "Asus RT-N16"}, "RT-N16-"},
{{BCM47XX_BOARD_ASUS_WL320GE, "Asus WL320GE"}, "WL320G-"},
{{BCM47XX_BOARD_ASUS_WL330GE, "Asus WL330GE"}, "WL330GE-"},
{{BCM47XX_BOARD_ASUS_WL500GD, "Asus WL500GD"}, "WL500gd-"},
{{BCM47XX_BOARD_ASUS_WL500GPV1, "Asus WL500GP V1"}, "WL500gp-"},
{{BCM47XX_BOARD_ASUS_WL500GPV2, "Asus WL500GP V2"}, "WL500GPV2-"},
{{BCM47XX_BOARD_ASUS_WL500W, "Asus WL500W"}, "WL500gW-"},
{{BCM47XX_BOARD_ASUS_WL520GC, "Asus WL520GC"}, "WL520GC-"},
{{BCM47XX_BOARD_ASUS_WL520GU, "Asus WL520GU"}, "WL520GU-"},
{{BCM47XX_BOARD_BELKIN_F7D3301, "Belkin F7D3301"}, "F7D3301"},
{{BCM47XX_BOARD_BELKIN_F7D3302, "Belkin F7D3302"}, "F7D3302"},
{{BCM47XX_BOARD_BELKIN_F7D4301, "Belkin F7D4301"}, "F7D4301"},
{{BCM47XX_BOARD_BELKIN_F7D4302, "Belkin F7D4302"}, "F7D4302"},
{{BCM47XX_BOARD_BELKIN_F7D4401, "Belkin F7D4401"}, "F7D4401"},
{ {0}, NULL},
};
/* hardware_version, boardnum */
static const
struct bcm47xx_board_type_list2 bcm47xx_board_list_hw_version_num[] __initconst = {
{{BCM47XX_BOARD_MICROSOFT_MN700, "Microsoft MN-700"}, "WL500-", "mn700"},
{{BCM47XX_BOARD_ASUS_WL500G, "Asus WL500G"}, "WL500-", "asusX"},
{ {0}, NULL},
};
/* productid */
static const
struct bcm47xx_board_type_list1 bcm47xx_board_list_productid[] __initconst = {
{{BCM47XX_BOARD_ASUS_RTAC66U, "Asus RT-AC66U"}, "RT-AC66U"},
{{BCM47XX_BOARD_ASUS_RTN10, "Asus RT-N10"}, "RT-N10"},
{{BCM47XX_BOARD_ASUS_RTN10D, "Asus RT-N10D"}, "RT-N10D"},
{{BCM47XX_BOARD_ASUS_RTN15U, "Asus RT-N15U"}, "RT-N15U"},
{{BCM47XX_BOARD_ASUS_RTN16, "Asus RT-N16"}, "RT-N16"},
{{BCM47XX_BOARD_ASUS_RTN53, "Asus RT-N53"}, "RT-N53"},
{{BCM47XX_BOARD_ASUS_RTN66U, "Asus RT-N66U"}, "RT-N66U"},
{{BCM47XX_BOARD_ASUS_WL300G, "Asus WL300G"}, "WL300g"},
{{BCM47XX_BOARD_ASUS_WLHDD, "Asus WLHDD"}, "WLHDD"},
{ {0}, NULL},
};
/* ModelId */
static const
struct bcm47xx_board_type_list1 bcm47xx_board_list_ModelId[] __initconst = {
{{BCM47XX_BOARD_DELL_TM2300, "Dell TrueMobile 2300"}, "WX-5565"},
{{BCM47XX_BOARD_MOTOROLA_WE800G, "Motorola WE800G"}, "WE800G"},
{{BCM47XX_BOARD_MOTOROLA_WR850GP, "Motorola WR850GP"}, "WR850GP"},
{{BCM47XX_BOARD_MOTOROLA_WR850GV2V3, "Motorola WR850G"}, "WR850G"},
{ {0}, NULL},
};
/* melco_id or buf1falo_id */
static const
struct bcm47xx_board_type_list1 bcm47xx_board_list_melco_id[] __initconst = {
{{BCM47XX_BOARD_BUFFALO_WBR2_G54, "Buffalo WBR2-G54"}, "29bb0332"},
{{BCM47XX_BOARD_BUFFALO_WHR2_A54G54, "Buffalo WHR2-A54G54"}, "290441dd"},
{{BCM47XX_BOARD_BUFFALO_WHR_G125, "Buffalo WHR-G125"}, "32093"},
{{BCM47XX_BOARD_BUFFALO_WHR_G54S, "Buffalo WHR-G54S"}, "30182"},
{{BCM47XX_BOARD_BUFFALO_WHR_HP_G54, "Buffalo WHR-HP-G54"}, "30189"},
{{BCM47XX_BOARD_BUFFALO_WLA2_G54L, "Buffalo WLA2-G54L"}, "29129"},
{{BCM47XX_BOARD_BUFFALO_WZR_G300N, "Buffalo WZR-G300N"}, "31120"},
{{BCM47XX_BOARD_BUFFALO_WZR_RS_G54, "Buffalo WZR-RS-G54"}, "30083"},
{{BCM47XX_BOARD_BUFFALO_WZR_RS_G54HP, "Buffalo WZR-RS-G54HP"}, "30103"},
{ {0}, NULL},
};
/* boot_hw_model, boot_hw_ver */
static const
struct bcm47xx_board_type_list2 bcm47xx_board_list_boot_hw[] __initconst = {
/* like WRT160N v3.0 */
{{BCM47XX_BOARD_CISCO_M10V1, "Cisco M10"}, "M10", "1.0"},
/* like WRT310N v2.0 */
{{BCM47XX_BOARD_CISCO_M20V1, "Cisco M20"}, "M20", "1.0"},
{{BCM47XX_BOARD_LINKSYS_E900V1, "Linksys E900 V1"}, "E900", "1.0"},
/* like WRT160N v3.0 */
{{BCM47XX_BOARD_LINKSYS_E1000V1, "Linksys E1000 V1"}, "E100", "1.0"},
{{BCM47XX_BOARD_LINKSYS_E1000V2, "Linksys E1000 V2"}, "E1000", "2.0"},
{{BCM47XX_BOARD_LINKSYS_E1000V21, "Linksys E1000 V2.1"}, "E1000", "2.1"},
{{BCM47XX_BOARD_LINKSYS_E1200V2, "Linksys E1200 V2"}, "E1200", "2.0"},
{{BCM47XX_BOARD_LINKSYS_E2000V1, "Linksys E2000 V1"}, "Linksys E2000", "1.0"},
/* like WRT610N v2.0 */
{{BCM47XX_BOARD_LINKSYS_E3000V1, "Linksys E3000 V1"}, "E300", "1.0"},
{{BCM47XX_BOARD_LINKSYS_E3200V1, "Linksys E3200 V1"}, "E3200", "1.0"},
{{BCM47XX_BOARD_LINKSYS_E4200V1, "Linksys E4200 V1"}, "E4200", "1.0"},
{{BCM47XX_BOARD_LINKSYS_WRT150NV11, "Linksys WRT150N V1.1"}, "WRT150N", "1.1"},
{{BCM47XX_BOARD_LINKSYS_WRT150NV1, "Linksys WRT150N V1"}, "WRT150N", "1"},
{{BCM47XX_BOARD_LINKSYS_WRT160NV1, "Linksys WRT160N V1"}, "WRT160N", "1.0"},
{{BCM47XX_BOARD_LINKSYS_WRT160NV3, "Linksys WRT160N V3"}, "WRT160N", "3.0"},
{{BCM47XX_BOARD_LINKSYS_WRT300NV11, "Linksys WRT300N V1.1"}, "WRT300N", "1.1"},
{{BCM47XX_BOARD_LINKSYS_WRT310NV1, "Linksys WRT310N V1"}, "WRT310N", "1.0"},
{{BCM47XX_BOARD_LINKSYS_WRT310NV2, "Linksys WRT310N V2"}, "WRT310N", "2.0"},
{{BCM47XX_BOARD_LINKSYS_WRT54G3GV2, "Linksys WRT54G3GV2-VF"}, "WRT54G3GV2-VF", "1.0"},
{{BCM47XX_BOARD_LINKSYS_WRT610NV1, "Linksys WRT610N V1"}, "WRT610N", "1.0"},
{{BCM47XX_BOARD_LINKSYS_WRT610NV2, "Linksys WRT610N V2"}, "WRT610N", "2.0"},
{ {0}, NULL},
};
/* board_id */
static const
struct bcm47xx_board_type_list1 bcm47xx_board_list_board_id[] __initconst = {
{{BCM47XX_BOARD_LUXUL_ABR_4400_V1, "Luxul ABR-4400 V1"}, "luxul_abr4400_v1"},
{{BCM47XX_BOARD_LUXUL_XAP_310_V1, "Luxul XAP-310 V1"}, "luxul_xap310_v1"},
{{BCM47XX_BOARD_LUXUL_XAP_1210_V1, "Luxul XAP-1210 V1"}, "luxul_xap1210_v1"},
{{BCM47XX_BOARD_LUXUL_XAP_1230_V1, "Luxul XAP-1230 V1"}, "luxul_xap1230_v1"},
{{BCM47XX_BOARD_LUXUL_XAP_1240_V1, "Luxul XAP-1240 V1"}, "luxul_xap1240_v1"},
{{BCM47XX_BOARD_LUXUL_XAP_1500_V1, "Luxul XAP-1500 V1"}, "luxul_xap1500_v1"},
{{BCM47XX_BOARD_LUXUL_XBR_4400_V1, "Luxul XBR-4400 V1"}, "luxul_xbr4400_v1"},
{{BCM47XX_BOARD_LUXUL_XVW_P30_V1, "Luxul XVW-P30 V1"}, "luxul_xvwp30_v1"},
{{BCM47XX_BOARD_LUXUL_XWR_600_V1, "Luxul XWR-600 V1"}, "luxul_xwr600_v1"},
{{BCM47XX_BOARD_LUXUL_XWR_1750_V1, "Luxul XWR-1750 V1"}, "luxul_xwr1750_v1"},
{{BCM47XX_BOARD_NETGEAR_R6200_V1, "Netgear R6200 V1"}, "U12H192T00_NETGEAR"},
{{BCM47XX_BOARD_NETGEAR_WGR614V8, "Netgear WGR614 V8"}, "U12H072T00_NETGEAR"},
{{BCM47XX_BOARD_NETGEAR_WGR614V9, "Netgear WGR614 V9"}, "U12H094T00_NETGEAR"},
{{BCM47XX_BOARD_NETGEAR_WGR614_V10, "Netgear WGR614 V10"}, "U12H139T01_NETGEAR"},
{{BCM47XX_BOARD_NETGEAR_WNDR3300, "Netgear WNDR3300"}, "U12H093T00_NETGEAR"},
{{BCM47XX_BOARD_NETGEAR_WNDR3400V1, "Netgear WNDR3400 V1"}, "U12H155T00_NETGEAR"},
{{BCM47XX_BOARD_NETGEAR_WNDR3400V2, "Netgear WNDR3400 V2"}, "U12H187T00_NETGEAR"},
{{BCM47XX_BOARD_NETGEAR_WNDR3400_V3, "Netgear WNDR3400 V3"}, "U12H208T00_NETGEAR"},
{{BCM47XX_BOARD_NETGEAR_WNDR3400VCNA, "Netgear WNDR3400 Vcna"}, "U12H155T01_NETGEAR"},
{{BCM47XX_BOARD_NETGEAR_WNDR3700V3, "Netgear WNDR3700 V3"}, "U12H194T00_NETGEAR"},
{{BCM47XX_BOARD_NETGEAR_WNDR4000, "Netgear WNDR4000"}, "U12H181T00_NETGEAR"},
{{BCM47XX_BOARD_NETGEAR_WNDR4500V1, "Netgear WNDR4500 V1"}, "U12H189T00_NETGEAR"},
{{BCM47XX_BOARD_NETGEAR_WNDR4500V2, "Netgear WNDR4500 V2"}, "U12H224T00_NETGEAR"},
{{BCM47XX_BOARD_NETGEAR_WNR1000_V3, "Netgear WNR1000 V3"}, "U12H139T00_NETGEAR"},
{{BCM47XX_BOARD_NETGEAR_WNR1000_V3, "Netgear WNR1000 V3"}, "U12H139T50_NETGEAR"},
{{BCM47XX_BOARD_NETGEAR_WNR2000, "Netgear WNR2000"}, "U12H114T00_NETGEAR"},
{{BCM47XX_BOARD_NETGEAR_WNR3500L, "Netgear WNR3500L"}, "U12H136T99_NETGEAR"},
{{BCM47XX_BOARD_NETGEAR_WNR3500U, "Netgear WNR3500U"}, "U12H136T00_NETGEAR"},
{{BCM47XX_BOARD_NETGEAR_WNR3500V2, "Netgear WNR3500 V2"}, "U12H127T00_NETGEAR"},
{{BCM47XX_BOARD_NETGEAR_WNR3500V2VC, "Netgear WNR3500 V2vc"}, "U12H127T70_NETGEAR"},
{{BCM47XX_BOARD_NETGEAR_WNR834BV2, "Netgear WNR834B V2"}, "U12H081T00_NETGEAR"},
{ {0}, NULL},
};
/* boardtype, boardnum, boardrev */
static const
struct bcm47xx_board_type_list3 bcm47xx_board_list_board[] __initconst = {
{{BCM47XX_BOARD_HUAWEI_E970, "Huawei E970"}, "0x048e", "0x5347", "0x11"},
{{BCM47XX_BOARD_PHICOMM_M1, "Phicomm M1"}, "0x0590", "80", "0x1104"},
{{BCM47XX_BOARD_ZTE_H218N, "ZTE H218N"}, "0x053d", "1234", "0x1305"},
{{BCM47XX_BOARD_NETGEAR_WNR3500L, "Netgear WNR3500L"}, "0x04CF", "3500", "02"},
{{BCM47XX_BOARD_LINKSYS_WRT54G_TYPE_0101, "Linksys WRT54G/GS/GL"}, "0x0101", "42", "0x10"},
{{BCM47XX_BOARD_LINKSYS_WRT54G_TYPE_0467, "Linksys WRT54G/GS/GL"}, "0x0467", "42", "0x10"},
{{BCM47XX_BOARD_LINKSYS_WRT54G_TYPE_0708, "Linksys WRT54G/GS/GL"}, "0x0708", "42", "0x10"},
{ {0}, NULL},
};
/* boardtype, boardrev */
static const
struct bcm47xx_board_type_list2 bcm47xx_board_list_board_type_rev[] __initconst = {
{{BCM47XX_BOARD_SIEMENS_SE505V2, "Siemens SE505 V2"}, "0x0101", "0x10"},
{ {0}, NULL},
};
/*
* Some devices don't use any common NVRAM entry for identification and they
* have only one model specific variable.
* They don't deserve own arrays, let's group them there using key-value array.
*/
static const
struct bcm47xx_board_type_list2 bcm47xx_board_list_key_value[] __initconst = {
{{BCM47XX_BOARD_ASUS_WL700GE, "Asus WL700"}, "model_no", "WL700"},
{{BCM47XX_BOARD_LINKSYS_WRT300N_V1, "Linksys WRT300N V1"}, "router_name", "WRT300N"},
{{BCM47XX_BOARD_LINKSYS_WRT600N_V11, "Linksys WRT600N V1.1"}, "Model_Name", "WRT600N"},
{{BCM47XX_BOARD_LINKSYS_WRTSL54GS, "Linksys WRTSL54GS"}, "machine_name", "WRTSL54GS"},
{ {0}, NULL},
};
static const
struct bcm47xx_board_type bcm47xx_board_unknown[] __initconst = {
{BCM47XX_BOARD_UNKNOWN, "Unknown Board"},
};
static struct bcm47xx_board_store bcm47xx_board = {BCM47XX_BOARD_NO, "Unknown Board"};
static __init const struct bcm47xx_board_type *bcm47xx_board_get_nvram(void)
{
char buf1[30];
char buf2[30];
char buf3[30];
const struct bcm47xx_board_type_list1 *e1;
const struct bcm47xx_board_type_list2 *e2;
const struct bcm47xx_board_type_list3 *e3;
if (bcm47xx_nvram_getenv("model_name", buf1, sizeof(buf1)) >= 0) {
for (e1 = bcm47xx_board_list_model_name; e1->value1; e1++) {
if (!strcmp(buf1, e1->value1))
return &e1->board;
}
}
if (bcm47xx_nvram_getenv("hardware_version", buf1, sizeof(buf1)) >= 0) {
for (e1 = bcm47xx_board_list_hardware_version; e1->value1; e1++) {
if (strstarts(buf1, e1->value1))
return &e1->board;
}
}
if (bcm47xx_nvram_getenv("hardware_version", buf1, sizeof(buf1)) >= 0 &&
bcm47xx_nvram_getenv("boardnum", buf2, sizeof(buf2)) >= 0) {
for (e2 = bcm47xx_board_list_hw_version_num; e2->value1; e2++) {
if (!strstarts(buf1, e2->value1) &&
!strcmp(buf2, e2->value2))
return &e2->board;
}
}
if (bcm47xx_nvram_getenv("productid", buf1, sizeof(buf1)) >= 0) {
for (e1 = bcm47xx_board_list_productid; e1->value1; e1++) {
if (!strcmp(buf1, e1->value1))
return &e1->board;
}
}
if (bcm47xx_nvram_getenv("ModelId", buf1, sizeof(buf1)) >= 0) {
for (e1 = bcm47xx_board_list_ModelId; e1->value1; e1++) {
if (!strcmp(buf1, e1->value1))
return &e1->board;
}
}
if (bcm47xx_nvram_getenv("melco_id", buf1, sizeof(buf1)) >= 0 ||
bcm47xx_nvram_getenv("buf1falo_id", buf1, sizeof(buf1)) >= 0) {
/* buffalo hardware, check id for specific hardware matches */
for (e1 = bcm47xx_board_list_melco_id; e1->value1; e1++) {
if (!strcmp(buf1, e1->value1))
return &e1->board;
}
}
if (bcm47xx_nvram_getenv("boot_hw_model", buf1, sizeof(buf1)) >= 0 &&
bcm47xx_nvram_getenv("boot_hw_ver", buf2, sizeof(buf2)) >= 0) {
for (e2 = bcm47xx_board_list_boot_hw; e2->value1; e2++) {
if (!strcmp(buf1, e2->value1) &&
!strcmp(buf2, e2->value2))
return &e2->board;
}
}
if (bcm47xx_nvram_getenv("board_id", buf1, sizeof(buf1)) >= 0) {
for (e1 = bcm47xx_board_list_board_id; e1->value1; e1++) {
if (!strcmp(buf1, e1->value1))
return &e1->board;
}
}
if (bcm47xx_nvram_getenv("boardtype", buf1, sizeof(buf1)) >= 0 &&
bcm47xx_nvram_getenv("boardnum", buf2, sizeof(buf2)) >= 0 &&
bcm47xx_nvram_getenv("boardrev", buf3, sizeof(buf3)) >= 0) {
for (e3 = bcm47xx_board_list_board; e3->value1; e3++) {
if (!strcmp(buf1, e3->value1) &&
!strcmp(buf2, e3->value2) &&
!strcmp(buf3, e3->value3))
return &e3->board;
}
}
if (bcm47xx_nvram_getenv("boardtype", buf1, sizeof(buf1)) >= 0 &&
bcm47xx_nvram_getenv("boardrev", buf2, sizeof(buf2)) >= 0 &&
bcm47xx_nvram_getenv("boardnum", buf3, sizeof(buf3)) == -ENOENT) {
for (e2 = bcm47xx_board_list_board_type_rev; e2->value1; e2++) {
if (!strcmp(buf1, e2->value1) &&
!strcmp(buf2, e2->value2))
return &e2->board;
}
}
for (e2 = bcm47xx_board_list_key_value; e2->value1; e2++) {
if (bcm47xx_nvram_getenv(e2->value1, buf1, sizeof(buf1)) >= 0) {
if (!strcmp(buf1, e2->value2))
return &e2->board;
}
}
return bcm47xx_board_unknown;
}
void __init bcm47xx_board_detect(void)
{
int err;
char buf[10];
const struct bcm47xx_board_type *board_detected;
if (bcm47xx_board.board != BCM47XX_BOARD_NO)
return;
/* check if the nvram is available */
err = bcm47xx_nvram_getenv("boardtype", buf, sizeof(buf));
/* init of nvram failed, probably too early now */
if (err == -ENXIO)
return;
board_detected = bcm47xx_board_get_nvram();
bcm47xx_board.board = board_detected->board;
strscpy(bcm47xx_board.name, board_detected->name,
BCM47XX_BOARD_MAX_NAME);
}
enum bcm47xx_board bcm47xx_board_get(void)
{
return bcm47xx_board.board;
}
EXPORT_SYMBOL(bcm47xx_board_get);
const char *bcm47xx_board_get_name(void)
{
return bcm47xx_board.name;
}
EXPORT_SYMBOL(bcm47xx_board_get_name);
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