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Add mud_set_mtu()

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This commit is contained in:
Adrien Gallouët
2016-10-18 16:40:05 +00:00
parent 4c34454a23
commit b82534d54c
2 changed files with 26 additions and 4 deletions
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29
mud.c
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@@ -150,6 +150,7 @@ struct mud {
uint64_t time_tolerance; uint64_t time_tolerance;
uint64_t mtu; uint64_t mtu;
uint64_t recv_mtu; uint64_t recv_mtu;
int send_mtu;
struct queue tx; struct queue tx;
struct queue rx; struct queue rx;
struct path *path; struct path *path;
@@ -622,6 +623,16 @@ int mud_get_mtu (struct mud *mud)
return mud->recv_mtu; return mud->recv_mtu;
} }
int mud_set_mtu (struct mud *mud, int mtu)
{
if (mud->mtu != mtu) {
mud->mtu = mtu;
mud->send_mtu = 1;
}
return 0;
}
static static
int mud_setup_socket (int fd, int v4, int v6) int mud_setup_socket (int fd, int v4, int v6)
{ {
@@ -1119,6 +1130,7 @@ int mud_pull (struct mud *mud)
mud_recv_keyx(mud, path, now, &packet->data[MUD_U48_SIZE*2]); mud_recv_keyx(mud, path, now, &packet->data[MUD_U48_SIZE*2]);
} else if (ret == (ssize_t)MUD_MTUX_SIZE) { } else if (ret == (ssize_t)MUD_MTUX_SIZE) {
mud->recv_mtu = mud_read48(&packet->data[MUD_U48_SIZE*2]); mud->recv_mtu = mud_read48(&packet->data[MUD_U48_SIZE*2]);
mud->send_mtu = 0;
if (!path->state.active) if (!path->state.active)
mud_ctrl_path(mud, mud_mtux, path, now); mud_ctrl_path(mud, mud_mtux, path, now);
} }
@@ -1181,7 +1193,7 @@ int mud_push (struct mud *mud)
continue; continue;
} }
if (!mud->recv_mtu) { if (!mud->recv_mtu || mud->send_mtu) {
mud_ctrl_path(mud, mud_mtux, path, now); mud_ctrl_path(mud, mud_mtux, path, now);
continue; continue;
} }
@@ -1228,11 +1240,20 @@ int mud_push (struct mud *mud)
ssize_t ret = mud_send_path(mud, path_min, now, ssize_t ret = mud_send_path(mud, path_min, now,
packet->data, packet->size, packet->tc); packet->data, packet->size, packet->tc);
if (ret != packet->size) if (ret == -1) {
break; switch (errno) {
case EAGAIN:
case EINTR:
case ENOMEM:
case ENOBUFS:
return 0;
}
}
mud->tx.start = MUD_PACKET_NEXT(mud->tx.start); mud->tx.start = MUD_PACKET_NEXT(mud->tx.start);
path_min->limit = limit_min;
if (ret == packet->size)
path_min->limit = limit_min;
} }
return 0; return 0;

1
mud.h
View File

@@ -12,6 +12,7 @@ int mud_get_key (struct mud *, unsigned char *, size_t *);
int mud_get_fd (struct mud *); int mud_get_fd (struct mud *);
int mud_get_mtu (struct mud *); int mud_get_mtu (struct mud *);
int mud_set_mtu (struct mud *, int mtu);
int mud_set_send_timeout_msec (struct mud *, unsigned); int mud_set_send_timeout_msec (struct mud *, unsigned);
int mud_set_time_tolerance_sec (struct mud *, unsigned); int mud_set_time_tolerance_sec (struct mud *, unsigned);