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Code cleanup

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Signed-off-by: Adrien Gallouët <adrien@gallouet.fr>
This commit is contained in:
Adrien Gallouët
2020-01-02 15:07:28 +00:00
parent a87a277701
commit 7ff46e742b
1 changed files with 18 additions and 34 deletions
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52
mud.c
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@@ -80,13 +80,6 @@
#define MUD_TIME_BITS (48)
#define MUD_TIME_MASK(X) ((X) & ((UINT64_C(1) << MUD_TIME_BITS) - 2))
#define MUD_WINDOW_TIMEOUT (MUD_ONE_MSEC)
#define MUD_KEYX_TIMEOUT ( 60 * MUD_ONE_MIN)
#define MUD_TIME_TOLERANCE ( 10 * MUD_ONE_MIN)
#define MUD_TC (192) // CS6
#define MUD_LOSS_LIMIT (25)
#define MUD_CTRL_SIZE (CMSG_SPACE(MUD_PKTINFO_SIZE) + \
CMSG_SPACE(sizeof(struct in6_pktinfo)) + \
CMSG_SPACE(sizeof(int)))
@@ -381,14 +374,12 @@ mud_send_path(struct mud *mud, struct mud_path *path, uint64_t now,
unsigned char ctrl[MUD_CTRL_SIZE];
struct iovec iov = {
.iov_base = data,
.iov_len = size,
};
struct msghdr msg = {
.msg_name = &path->addr,
.msg_iov = &iov,
.msg_iov = &(struct iovec) {
.iov_base = data,
.iov_len = size,
},
.msg_iovlen = 1,
.msg_control = ctrl,
};
@@ -927,10 +918,10 @@ mud_create(struct sockaddr *addr)
return NULL;
}
mud->time_tolerance = MUD_TIME_TOLERANCE;
mud->keyx.timeout = MUD_KEYX_TIMEOUT;
mud->tc = MUD_TC;
mud->loss_limit = MUD_LOSS_LIMIT;
mud->time_tolerance = 10 * MUD_ONE_MIN;
mud->keyx.timeout = 60 * MUD_ONE_MIN;
mud->tc = 192; // CS6
mud->loss_limit = 25;
memcpy(&mud->addr, addr, addrlen);
@@ -1184,7 +1175,7 @@ mud_update_window(struct mud *mud, struct mud_path *path, uint64_t now,
uint64_t tx_acc = path->msg.tx.acc + tx_pkt;
uint64_t rx_acc = path->msg.rx.acc + rx_pkt;
if (tx_acc > 10 * MUD_LOSS_LIMIT) {
if (tx_acc > 10 * mud->loss_limit) {
if (tx_acc >= rx_acc) {
uint64_t loss = (tx_acc - rx_acc) * 255U / tx_acc;
path->tx.loss = (6 * path->tx.loss + 2 * loss) / 8;
@@ -1313,20 +1304,17 @@ mud_recv_msg(struct mud *mud, struct mud_path *path,
int
mud_recv(struct mud *mud, void *data, size_t size)
{
unsigned char packet[MUD_PKT_MAX_SIZE];
struct iovec iov = {
.iov_base = packet,
.iov_len = sizeof(packet),
};
struct sockaddr_storage addr;
unsigned char ctrl[MUD_CTRL_SIZE];
unsigned char packet[MUD_PKT_MAX_SIZE];
struct msghdr msg = {
.msg_name = &addr,
.msg_namelen = sizeof(addr),
.msg_iov = &iov,
.msg_iov = &(struct iovec) {
.iov_base = packet,
.iov_len = sizeof(packet),
},
.msg_iovlen = 1,
.msg_control = ctrl,
.msg_controllen = sizeof(ctrl),
@@ -1372,10 +1360,7 @@ mud_recv(struct mud *mud, void *data, size_t size)
struct mud_path *path = mud_get_path(mud, &local_addr, &addr, 1);
if (!path)
return 0;
if (path->state <= MUD_DOWN)
if (!path || path->state <= MUD_DOWN)
return 0;
if (MUD_MSG(sent_time))
@@ -1411,7 +1396,6 @@ static int
mud_update(struct mud *mud)
{
int count = 0;
uint64_t window = 0;
uint64_t rate = 0;
size_t mtu = 0;
@@ -1458,9 +1442,9 @@ mud_update(struct mud *mud)
if (rate && mud->window < 1500) {
uint64_t elapsed = MUD_TIME_MASK(now - mud->window_time);
if (elapsed > MUD_WINDOW_TIMEOUT) {
if (elapsed > 20 * MUD_WINDOW_TIMEOUT)
elapsed = 20 * MUD_WINDOW_TIMEOUT;
if (elapsed > MUD_ONE_MSEC) {
if (elapsed > 20 * MUD_ONE_MSEC)
elapsed = 20 * MUD_ONE_MSEC;
mud->window += rate * elapsed / MUD_ONE_SEC;
mud->window_time = now;
}