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Compute MTU only with usable paths

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Signed-off-by: Adrien Gallouët <adrien@gallouet.fr>
This commit is contained in:
Adrien Gallouët
2018-03-14 22:36:58 +00:00
parent 2c5eb574f9
commit 865c6aa640
1 changed files with 16 additions and 13 deletions
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29
mud.c
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@@ -449,9 +449,9 @@ mud_get_path(struct mud *mud, struct sockaddr_storage *local_addr,
for (unsigned i = 0; i < mud->count; i++) {
struct mud_path *path = &mud->paths[i];
if (path->state &&
!mud_cmp_addr(local_addr, &path->local_addr) &&
!mud_cmp_addr(addr, &path->addr))
if ((path->state != MUD_EMPTY) &&
(!mud_cmp_addr(local_addr, &path->local_addr)) &&
(!mud_cmp_addr(addr, &path->addr)))
return path;
}
@@ -673,21 +673,24 @@ mud_set_state(struct mud *mud, struct sockaddr *peer, enum mud_state state)
size_t
mud_get_mtu(struct mud *mud)
{
size_t mtu;
size_t mtu = MUD_PACKET_MAX_SIZE;
unsigned count = 0;
if (mud->count) {
mtu = MUD_PACKET_MAX_SIZE;
for (unsigned i = 0; i < mud->count; i++) {
struct mud_path *path = &mud->paths[i];
for (unsigned i = 0; i < mud->count; i++) {
struct mud_path *path = &mud->paths[i];
if (path->state <= MUD_DOWN)
continue;
if (mtu > path->mtu.ok)
mtu = path->mtu.ok;
}
} else {
mtu = mud->mtu;
count++;
if (mtu > path->mtu.ok)
mtu = path->mtu.ok;
}
if (!count)
mtu = mud->mtu;
if (mtu > MUD_PACKET_MAX_SIZE)
mtu = MUD_PACKET_MAX_SIZE;