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Merge pull request #503 from bloqaudio/fix/uip-fragment-log-rate-limit

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uip: rate-limit the dropped-fragment log
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feelfree69 authored and GitHub committed 2026-10-24 16:40:33 +02:00
2 parents e1e1292ab0 d0374541c5
commit 7e0bc93b55
4 files changed
+35 -1
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uip/uip.c
+19 -1
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@@ -98,6 +98,7 @@
#include "../rtl837x_regs.h"
extern __xdata uint8_t rx_headers[16];
extern volatile __xdata uint32_t ticks;
/*---------------------------------------------------------------------------*/
/* Variable definitions. */
@@ -243,6 +244,9 @@ __xdata struct uip_stats uip_stat;
#if UIP_LOGGING == 1
#define UIP_LOG(m) print_string_newline_no_syslog(m);
#define FRAGDROP_WINDOW (5 * SYS_TICK_HZ)
static __xdata u16_t fragdrop_mark;
static __xdata u8_t fragdrop_count;
#else
#define UIP_LOG(m)
#endif /* UIP_LOGGING == 1 */
@@ -710,6 +714,17 @@ uip_process(u8_t flag) __banked
/* Check if we were invoked because of the perodic timer fireing. */
} else if(flag == UIP_TIMER) {
// print_string("T1\n");
#if UIP_LOGGING == 1
if(fragdrop_count && (u16_t)ticks - fragdrop_mark >= FRAGDROP_WINDOW) {
print_string_no_syslog("ip: fragments dropped: ");
itoa_no_syslog(fragdrop_count);
if(fragdrop_count == 0xff)
write_char_no_syslog('+');
write_char_no_syslog('\n');
fragdrop_mark = (u16_t)ticks;
fragdrop_count = 0;
}
#endif /* UIP_LOGGING == 1 */
#if UIP_IDLE_TIMEOUT
if(uip_connr == uip_conns) {
uip_idle_age = 0;
@@ -915,7 +930,10 @@ uip_process(u8_t flag) __banked
#else /* UIP_REASSEMBLY */
UIP_STAT(++uip_stat.ip.drop);
UIP_STAT(++uip_stat.ip.fragerr);
UIP_LOG("ip: fragment dropped.");
#if UIP_LOGGING == 1
if(fragdrop_count != 0xff)
++fragdrop_count;
#endif /* UIP_LOGGING == 1 */
goto drop;
#endif /* UIP_REASSEMBLY */
}