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Add failover

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This commit is contained in:
angt
2016-02-17 16:31:25 +00:00
parent 2424ffa5a9
commit cdee4db014
1 changed files with 22 additions and 15 deletions
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37
mud.c
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@@ -420,11 +420,11 @@ int mud_decrypt (struct mud *mud, uint64_t *nonce,
const unsigned char *src, size_t src_size,
size_t ad_size)
{
if (ad_size > src_size)
ad_size > src_size;
size_t size = src_size-6-crypto_aead_aes256gcm_ABYTES;
if (ad_size > size)
ad_size = size;
if (size > dst_size)
return 0;
@@ -479,7 +479,7 @@ int mud_pull (struct mud *mud)
unsigned char tmp[sizeof(packet->data)];
if (mud_decrypt(mud, NULL, tmp, sizeof(tmp),
packet->data, (size_t)ret, 4) <= 0)
packet->data, (size_t)ret, 4) == -1)
continue;
path = mud_new_path(mud, sock->fd, &addr);
@@ -489,6 +489,13 @@ int mud_pull (struct mud *mud)
}
uint64_t send_time = mud_read48(packet->data);
int64_t dt = (now-path->recv.time)-(send_time-path->recv.send_time);
if (path->recv.time && path->recv.send_time && (dt > 0))
path->rdt = (path->rdt*UINT64_C(7)+dt)/UINT64_C(8);
path->recv.send_time = send_time;
path->recv.time = now;
if (!send_time) {
uint64_t send_time = mud_read48(&packet->data[6*1]);
@@ -500,17 +507,10 @@ int mud_pull (struct mud *mud)
continue;
}
int64_t dt = (now-path->recv.time)-(send_time-path->recv.send_time);
if (path->recv.time && path->recv.send_time && (dt > 0))
path->rdt = (path->rdt*UINT64_C(7)+dt)/UINT64_C(8);
path->recv.send_time = send_time;
path->recv.time = now;
if (now-path->pong_time > UINT64_C(100000)) {
if (!path->pong_time ||
(now-path->pong_time > UINT64_C(100000))) {
unsigned char tmp[256];
unsigned char pong[5*6];
unsigned char pong[6*3];
memcpy(pong, packet->data, 6);
mud_write48(&pong[6*1], now);
@@ -520,6 +520,7 @@ int mud_pull (struct mud *mud)
if (ret > 0) {
mud_send_path(path, tmp, (size_t)ret);
path->send.time = now;
path->pong_time = now;
}
}
@@ -570,6 +571,12 @@ int mud_push (struct mud *mud)
int64_t limit_min = INT64_MAX;
for (path = mud->path; path; path = path->next) {
if (!path->recv.time)
continue;
if (now-path->recv.time > UINT64_C(200000))
continue;
int64_t limit = path->limit;
uint64_t elapsed = now-path->send.time;
@@ -602,7 +609,7 @@ int mud_push (struct mud *mud)
for (path = mud->path; path; path = path->next) {
uint64_t now = mud_now(mud);
if (path->send.time && (now-path->send.time < UINT64_C(10000000)))
if (path->send.time && (now-path->send.time < UINT64_C(1000000)))
continue;
unsigned char ping[32];