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Added SNMP counters.

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This commit is contained in:
christiaans 2006-08-18 10:18:42 +00:00
parent 2dcbd016e6
commit cdb7557d88
3 changed files with 25 additions and 2 deletions
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12
src/core/tcp.c
View File

@ -47,6 +47,7 @@
#include "lwip/def.h"
#include "lwip/mem.h"
#include "lwip/memp.h"
#include "lwip/snmp.h"
#include "lwip/tcp.h"
#if LWIP_TCP
@ -144,17 +145,26 @@ tcp_close(struct tcp_pcb *pcb)
tcp_pcb_remove(&tcp_active_pcbs, pcb);
memp_free(MEMP_TCP_PCB, pcb);
pcb = NULL;
snmp_inc_tcpattemptfails();
break;
case SYN_RCVD:
err = tcp_send_ctrl(pcb, TCP_FIN);
if (err == ERR_OK) {
snmp_inc_tcpattemptfails();
pcb->state = FIN_WAIT_1;
}
break;
case ESTABLISHED:
err = tcp_send_ctrl(pcb, TCP_FIN);
if (err == ERR_OK) {
snmp_inc_tcpestabresets();
pcb->state = FIN_WAIT_1;
}
break;
case CLOSE_WAIT:
err = tcp_send_ctrl(pcb, TCP_FIN);
if (err == ERR_OK) {
snmp_inc_tcpestabresets();
pcb->state = LAST_ACK;
}
break;
@ -435,6 +445,8 @@ tcp_connect(struct tcp_pcb *pcb, struct ip_addr *ipaddr, u16_t port,
pcb->connected = connected;
#endif /* LWIP_CALLBACK_API */
TCP_REG(&tcp_active_pcbs, pcb);
snmp_inc_tcpactiveopens();
/* Build an MSS option */
optdata = htonl(((u32_t)2 << 24) |

9
src/core/tcp_in.c
View File

@ -54,8 +54,9 @@
#include "lwip/tcp.h"
#include "lwip/stats.h"
#include "arch/perf.h"
#include "lwip/snmp.h"
#if LWIP_TCP
/* These variables are global to all functions involved in the input
processing of TCP segments. They are set by the tcp_input()
@ -99,6 +100,7 @@ tcp_input(struct pbuf *p, struct netif *inp)
PERF_START;
TCP_STATS_INC(tcp.recv);
snmp_inc_tcpinsegs();
iphdr = p->payload;
tcphdr = (struct tcp_hdr *)((u8_t *)p->payload + IPH_HL(iphdr) * 4);
@ -120,6 +122,7 @@ tcp_input(struct pbuf *p, struct netif *inp)
/* Don't even process incoming broadcasts/multicasts. */
if (ip_addr_isbroadcast(&(iphdr->dest), inp) ||
ip_addr_ismulticast(&(iphdr->dest))) {
snmp_inc_tcpinerrs();
pbuf_free(p);
return;
}
@ -137,7 +140,7 @@ tcp_input(struct pbuf *p, struct netif *inp)
#endif /* TCP_DEBUG */
TCP_STATS_INC(tcp.chkerr);
TCP_STATS_INC(tcp.drop);
snmp_inc_tcpinerrs();
pbuf_free(p);
return;
}
@ -390,6 +393,8 @@ tcp_listen_input(struct tcp_pcb_listen *pcb)
/* Parse any options in the SYN. */
tcp_parseopt(npcb);
snmp_inc_tcppassiveopens();
/* Build an MSS option. */
optdata = htonl(((u32_t)2 << 24) |
((u32_t)4 << 16) |

6
src/core/tcp_out.c
View File

@ -51,6 +51,7 @@
#include "lwip/inet.h"
#include "lwip/tcp.h"
#include "lwip/stats.h"
#include "lwip/snmp.h"
#if LWIP_TCP
@ -520,6 +521,9 @@ tcp_output_segment(struct tcp_seg *seg, struct tcp_pcb *pcb)
u16_t len;
struct netif *netif;
/** @bug Exclude retransmitted segments from this count. */
snmp_inc_tcpoutsegs();
/* The TCP header has already been constructed, but the ackno and
wnd fields remain. */
seg->tcphdr->ackno = htonl(pcb->rcv_nxt);
@ -603,6 +607,7 @@ tcp_rst(u32_t seqno, u32_t ackno,
IP_PROTO_TCP, p->tot_len);
#endif
TCP_STATS_INC(tcp.xmit);
snmp_inc_tcpoutrsts();
/* Send output with hardcoded TTL since we have no access to the pcb */
ip_output(p, local_ip, remote_ip, TCP_TTL, 0, IP_PROTO_TCP);
pbuf_free(p);
@ -662,6 +667,7 @@ tcp_rexmit(struct tcp_pcb *pcb)
pcb->rttest = 0;
/* Do the actual retransmission. */
snmp_inc_tcpretranssegs();
tcp_output(pcb);
}