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Merge pull request #2330 from cesanta/timeout

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Timeout
This commit is contained in:
Sergio R. Caprile 2023-08-03 14:52:54 -03:00 committed by GitHub
commit 3a06b4833c
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 22 additions and 12 deletions
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17
mongoose.c
View File

@ -7732,8 +7732,9 @@ struct mg_tcpip_driver mg_tcpip_driver_w5500 = {w5500_init, w5500_tx, w5500_rx,
#define MIP_TCP_KEEPALIVE_MS 45000 // TCP keep-alive period, ms
#endif
#define MIP_TCP_ACK_MS 150 // Timeout for ACKing
#define MIP_TCP_ARP_MS 100 // Timeout for ARP response
#define MIP_TCP_ACK_MS 150 // Timeout for ACKing
#define MIP_TCP_ARP_MS 100 // Timeout for ARP response
#define MIP_TCP_SYN_MS 15000 // Timeout for connection establishment
struct connstate {
uint32_t seq, ack; // TCP seq/ack counters
@ -7743,6 +7744,7 @@ struct connstate {
#define MIP_TTYPE_KEEPALIVE 0 // Connection is idle for long, send keepalive
#define MIP_TTYPE_ACK 1 // Peer sent us data, we have to ack it soon
#define MIP_TTYPE_ARP 2 // ARP resolve sent, waiting for response
#define MIP_TTYPE_SYN 3 // SYN sent, waiting for response
uint8_t tmiss; // Number of keep-alive misses
struct mg_iobuf raw; // For TLS only. Incoming raw data
};
@ -7881,6 +7883,7 @@ static void settmout(struct mg_connection *c, uint8_t type) {
struct connstate *s = (struct connstate *) (c + 1);
unsigned n = type == MIP_TTYPE_ACK ? MIP_TCP_ACK_MS
: type == MIP_TTYPE_ARP ? MIP_TCP_ARP_MS
: type == MIP_TTYPE_SYN ? MIP_TCP_SYN_MS
: MIP_TCP_KEEPALIVE_MS;
s->timer = ifp->now + n;
s->ttype = type;
@ -8067,8 +8070,8 @@ static void rx_arp(struct mg_tcpip_if *ifp, struct pkt *pkt) {
MG_DEBUG(("%lu ARP resolved %M -> %M", c->id, mg_print_ip4, c->rem.ip,
mg_print_mac, s->mac));
c->is_arplooking = 0;
settmout(c, MIP_TTYPE_KEEPALIVE);
send_syn(c);
settmout(c, MIP_TTYPE_SYN);
}
}
}
@ -8569,8 +8572,7 @@ static void mg_tcpip_poll(struct mg_tcpip_if *ifp, uint64_t uptime_ms) {
// Process timeouts
for (struct mg_connection *c = ifp->mgr->conns; c != NULL; c = c->next) {
if (c->is_udp || c->is_listening) continue;
if (c->is_connecting || c->is_resolving) continue;
if (c->is_udp || c->is_listening || c->is_resolving) continue;
struct connstate *s = (struct connstate *) (c + 1);
uint32_t rem_ip;
memcpy(&rem_ip, c->rem.ip, sizeof(uint32_t));
@ -8581,6 +8583,8 @@ static void mg_tcpip_poll(struct mg_tcpip_if *ifp, uint64_t uptime_ms) {
mg_htonl(s->seq), mg_htonl(s->ack), "", 0);
} else if (s->ttype == MIP_TTYPE_ARP) {
mg_error(c, "ARP timeout");
} else if (s->ttype == MIP_TTYPE_SYN) {
mg_error(c, "Connection timeout");
} else {
if (s->tmiss++ > 2) {
mg_error(c, "keepalive");
@ -8672,7 +8676,7 @@ void mg_connect_resolved(struct mg_connection *c) {
&c->rem));
mg_call(c, MG_EV_RESOLVE, NULL);
if (((rem_ip & ifp->mask) == (ifp->ip & ifp->mask))) {
// If we're in the same LAN, fire an ARP lookup. TODO(cpq): handle this!
// If we're in the same LAN, fire an ARP lookup.
MG_DEBUG(("%lu ARP lookup...", c->id));
arp_ask(ifp, rem_ip);
settmout(c, MIP_TTYPE_ARP);
@ -8694,6 +8698,7 @@ void mg_connect_resolved(struct mg_connection *c) {
mg_call(c, MG_EV_CONNECT, NULL);
} else {
send_syn(c);
settmout(c, MIP_TTYPE_SYN);
c->is_connecting = 1;
}
}

17
src/tcpip/tcpip.c
View File

@ -9,8 +9,9 @@
#define MIP_TCP_KEEPALIVE_MS 45000 // TCP keep-alive period, ms
#endif
#define MIP_TCP_ACK_MS 150 // Timeout for ACKing
#define MIP_TCP_ARP_MS 100 // Timeout for ARP response
#define MIP_TCP_ACK_MS 150 // Timeout for ACKing
#define MIP_TCP_ARP_MS 100 // Timeout for ARP response
#define MIP_TCP_SYN_MS 15000 // Timeout for connection establishment
struct connstate {
uint32_t seq, ack; // TCP seq/ack counters
@ -20,6 +21,7 @@ struct connstate {
#define MIP_TTYPE_KEEPALIVE 0 // Connection is idle for long, send keepalive
#define MIP_TTYPE_ACK 1 // Peer sent us data, we have to ack it soon
#define MIP_TTYPE_ARP 2 // ARP resolve sent, waiting for response
#define MIP_TTYPE_SYN 3 // SYN sent, waiting for response
uint8_t tmiss; // Number of keep-alive misses
struct mg_iobuf raw; // For TLS only. Incoming raw data
};
@ -158,6 +160,7 @@ static void settmout(struct mg_connection *c, uint8_t type) {
struct connstate *s = (struct connstate *) (c + 1);
unsigned n = type == MIP_TTYPE_ACK ? MIP_TCP_ACK_MS
: type == MIP_TTYPE_ARP ? MIP_TCP_ARP_MS
: type == MIP_TTYPE_SYN ? MIP_TCP_SYN_MS
: MIP_TCP_KEEPALIVE_MS;
s->timer = ifp->now + n;
s->ttype = type;
@ -344,8 +347,8 @@ static void rx_arp(struct mg_tcpip_if *ifp, struct pkt *pkt) {
MG_DEBUG(("%lu ARP resolved %M -> %M", c->id, mg_print_ip4, c->rem.ip,
mg_print_mac, s->mac));
c->is_arplooking = 0;
settmout(c, MIP_TTYPE_KEEPALIVE);
send_syn(c);
settmout(c, MIP_TTYPE_SYN);
}
}
}
@ -846,8 +849,7 @@ static void mg_tcpip_poll(struct mg_tcpip_if *ifp, uint64_t uptime_ms) {
// Process timeouts
for (struct mg_connection *c = ifp->mgr->conns; c != NULL; c = c->next) {
if (c->is_udp || c->is_listening) continue;
if (c->is_connecting || c->is_resolving) continue;
if (c->is_udp || c->is_listening || c->is_resolving) continue;
struct connstate *s = (struct connstate *) (c + 1);
uint32_t rem_ip;
memcpy(&rem_ip, c->rem.ip, sizeof(uint32_t));
@ -858,6 +860,8 @@ static void mg_tcpip_poll(struct mg_tcpip_if *ifp, uint64_t uptime_ms) {
mg_htonl(s->seq), mg_htonl(s->ack), "", 0);
} else if (s->ttype == MIP_TTYPE_ARP) {
mg_error(c, "ARP timeout");
} else if (s->ttype == MIP_TTYPE_SYN) {
mg_error(c, "Connection timeout");
} else {
if (s->tmiss++ > 2) {
mg_error(c, "keepalive");
@ -949,7 +953,7 @@ void mg_connect_resolved(struct mg_connection *c) {
&c->rem));
mg_call(c, MG_EV_RESOLVE, NULL);
if (((rem_ip & ifp->mask) == (ifp->ip & ifp->mask))) {
// If we're in the same LAN, fire an ARP lookup. TODO(cpq): handle this!
// If we're in the same LAN, fire an ARP lookup.
MG_DEBUG(("%lu ARP lookup...", c->id));
arp_ask(ifp, rem_ip);
settmout(c, MIP_TTYPE_ARP);
@ -971,6 +975,7 @@ void mg_connect_resolved(struct mg_connection *c) {
mg_call(c, MG_EV_CONNECT, NULL);
} else {
send_syn(c);
settmout(c, MIP_TTYPE_SYN);
c->is_connecting = 1;
}
}