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Merge pull request #297 from DrDoof/hostname

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system: configurable hostname + show model on the System page
This commit is contained in:
René van Dorst
2026-08-07 18:10:34 +00:00
committed by GitHub
parent f98fe32d0c 108ac9b8fc
commit 3f7db7e430
8 changed files with 96 additions and 0 deletions
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rtlplayground.c
+32
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@@ -25,6 +25,7 @@
#include "machine.h"
#include "phy.h"
#include "syslog.h"
#include "httpd/page_impl.h"
extern __code const struct machine machine;
extern __xdata uint32_t flash_size;
@@ -120,6 +121,7 @@ __xdata uint16_t management_vlan;
__xdata uint8_t tx_seq;
__xdata uint8_t stpEnabled;
__xdata char hostname[24]; /* device hostname, default set at boot, see rtl837x_common.h */
__code uint16_t bit_mask[16] = {
0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080,
@@ -2004,6 +2006,34 @@ void check_and_flash_update_image(void)
}
}
/* Give the switch a name carrying the tail of its MAC, so several of them on
* one network are distinguishable out of the box. Called after the startup
* config has been replayed and returns at once if that config already set a
* name, so a configured switch does no work for it (suggested in review).
*
* Written without a loop on purpose. Locals - counters and pointers alike -
* land in the 8051's internal-RAM overlay, and on an image with LACP and STP
* both enabled that overlay is exhausted: a loop here makes the linker fail
* with "Could not get 8 consecutive bytes in internal RAM for area OSEG".
* Moving the code into its own function does not help; the overlay is shared
* across the whole image. Hoisting the locals to xdata does not help either,
* because itohex() is inline and brings its own frame. */
void set_hostname_default(void)
{
if (hostname[0] != '\0')
return;
strcpy((__xdata uint8_t *)hostname, "RTLPlayground-");
hostname[14] = hex[uip_ethaddr.addr[3] >> 4];
hostname[15] = hex[uip_ethaddr.addr[3] & 0xf];
hostname[16] = hex[uip_ethaddr.addr[4] >> 4];
hostname[17] = hex[uip_ethaddr.addr[4] & 0xf];
hostname[18] = hex[uip_ethaddr.addr[5] >> 4];
hostname[19] = hex[uip_ethaddr.addr[5] & 0xf];
hostname[20] = '\0';
}
void main(void)
{
ticks = 0;
@@ -2168,6 +2198,8 @@ void main(void)
early_boot_handle_button();
execute_config();
/* After the config: a name from it wins, otherwise derive one. */
set_hostname_default();
print_cmd_prompt();
idle_ready = 1;