diff options
Diffstat (limited to 'freebsd/sbin/dhclient/dhclient.c')
| -rw-r--r-- | freebsd/sbin/dhclient/dhclient.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/freebsd/sbin/dhclient/dhclient.c b/freebsd/sbin/dhclient/dhclient.c index 2aedd2f7..3b5b8849 100644 --- a/freebsd/sbin/dhclient/dhclient.c +++ b/freebsd/sbin/dhclient/dhclient.c @@ -865,6 +865,7 @@ bind_lease(struct interface_info *ip) opt = &ip->client->new->options[DHO_INTERFACE_MTU]; if (opt->len == sizeof(u_int16_t)) { u_int16_t mtu = 0; + u_int16_t old_mtu = 0; bool supersede = (ip->client->config->default_actions[DHO_INTERFACE_MTU] == ACTION_SUPERSEDE); @@ -873,12 +874,19 @@ bind_lease(struct interface_info *ip) else mtu = be16dec(opt->data); + if (ip->client->active) { + opt = &ip->client->active->options[DHO_INTERFACE_MTU]; + if (opt->len == sizeof(u_int16_t)) { + old_mtu = be16dec(opt->data); + } + } + if (mtu < MIN_MTU) { /* Treat 0 like a user intentionally doesn't want to change MTU and, * therefore, warning is not needed */ if (!supersede || mtu != 0) warning("mtu size %u < %d: ignored", (unsigned)mtu, MIN_MTU); - } else { + } else if (ip->client->state != S_RENEWING || mtu != old_mtu) { interface_set_mtu_unpriv(privfd, mtu); } } @@ -2350,7 +2358,8 @@ priv_script_go(void) if (ip) script_flush_env(ip->client); - return (wstatus & 0xff); + return (WIFEXITED(wstatus) ? + WEXITSTATUS(wstatus) : 128 + WTERMSIG(wstatus)); } void |