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gui: Spanning Tree page (config + live status)

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Add a Spanning Tree page: an on/off toggle driving the existing "stp"
command over /cmd, and a live status section fed by a new /stp.json
endpoint - the elected root bridge (priority + MAC), our path cost,
whether we are the root, and the per-port STP state read live from the
ASIC's MSTP register (same 2-bit encoding stp_setup() writes). Ports are
reported by their physical numbers.

Recovered-from: 3132319, 9365c86
This commit is contained in:
d00f
2026-08-04 03:22:19 +02:00
parent 886975d856
commit 89cc9828c3
6 changed files with 137 additions and 0 deletions
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httpd/page_impl.c
+51
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@@ -12,6 +12,7 @@
#include "phy.h"
#include "version.h"
#include "machine.h"
#include "rtl837x_stp.h"
#include "page_impl.h"
#include "syslog.h"
@@ -527,6 +528,56 @@ void send_lag(void)
}
/* STP status for the L2 page ("/stp.json"): enable state, the elected root
* bridge (priority+MAC) and our path cost to it, whether we are the root, and
* the live per-port STP state read from the ASIC's MSTP register (2 bits per
* port: 0 disable, 1 blocking, 2 learning, 3 forwarding - same encoding
* stp_setup() writes). Ports are reported by their physical number. */
/* Scratch for send_stp(): a plain local would land in the near-full 8051
* internal-RAM overlay (OSEG). */
__xdata uint8_t stp_we_root;
void send_stp(void)
{
dbg_string("send_stp called\n");
slen = strtox(outbuf, HTTP_RESPONCE_JSON);
slen += strtox(outbuf + slen, "{\"on\":");
bool_to_html(stpEnabled);
slen += strtox(outbuf + slen, ",\"rootPrio\":\"");
byte_to_html(root_bridge.prio);
byte_to_html(root_bridge.ext);
slen += strtox(outbuf + slen, "\",\"rootMac\":\"");
for (uint8_t j = 0; j < 6; j++)
byte_to_html(root_bridge.mac[j]);
slen += strtox(outbuf + slen, "\",\"cost\":\"");
byte_to_html(root_bridge_cost >> 24);
byte_to_html(root_bridge_cost >> 16);
byte_to_html(root_bridge_cost >> 8);
byte_to_html(root_bridge_cost);
/* are we the elected root? (our MAC == root MAC) */
stp_we_root = 1;
for (uint8_t j = 0; j < 6; j++) {
if (root_bridge.mac[j] != uip_ethaddr.addr[j])
stp_we_root = 0;
}
slen += strtox(outbuf + slen, "\",\"weRoot\":");
bool_to_html(stp_we_root);
slen += strtox(outbuf + slen, ",\"ports\":[");
reg_read_m(RTL837X_MSTP_STATES);
for (uint8_t i = machine.min_port; i <= machine.max_port; i++) {
slen += strtox(outbuf + slen, "{\"p\":");
itoa_html(machine.log_to_phys_port[i]);
slen += strtox(outbuf + slen, ",\"st\":");
/* 2-bit field per logical port, packed from byte 3 up (cf. stp_setup) */
itoa_html((sfr_data[3 - (i >> 2)] >> ((i << 1) & 0x7)) & 0x3);
slen += strtox(outbuf + slen, "},");
}
slen -= 1; // remove comma
slen += strtox(outbuf + slen, "]}");
}
void send_eee(void)
{
dbg_string("send_eee called\nsending EEE status\n");