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ar71xx: mikrotik: prepend "RouterBOARD" to machine name for NOR devices 

When the device name doesn't already contain "RouterBOARD", this patch adds
this string to the machine name.

Most NOR devices already have "RouterBOARD" in their hardware-stored device name,
but not all of them.

This patch also makes the code more robust against buffer overflows.

Signed-off-by: Thibaut VARENE <hacks@slashdirt.org>
owl
Thibaut VARENE 2017-03-13 14:51:54 +01:00 committed by Piotr Dymacz
parent e3dc036cbf
commit e1f3cf7ede
1 changed files with 15 additions and 3 deletions
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18
target/linux/ar71xx/files/arch/mips/ath79/mach-rbspi.c
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@ -437,20 +437,32 @@ void __init rbspi_wlan_init(u16 id, int wmac_offset)
kfree(art_buf);
}
#define RBSPI_MACH_BUFLEN 64
/*
* Common platform init routine for all SPI NOR devices.
*/
static int __init rbspi_platform_setup(void)
{
const struct rb_info *info;
char buf[64];
char buf[RBSPI_MACH_BUFLEN] = "MikroTik ";
char *str;
int len = RBSPI_MACH_BUFLEN - strlen(buf) - 1;
info = rb_init_info((void *)(KSEG1ADDR(AR71XX_SPI_BASE)), 0x20000);
if (!info)
return -ENODEV;
scnprintf(buf, sizeof(buf), "MikroTik %s",
(info->board_name) ? info->board_name : "");
if (info->board_name) {
str = "RouterBOARD ";
if (strncmp(info->board_name, str, strlen(str))) {
strncat(buf, str, len);
len -= strlen(str);
}
strncat(buf, info->board_name, len);
}
else
strncat(buf, "UNKNOWN", len);
mips_set_machine_name(buf);
/* fix partitions based on flash parsing */