diff options
| -rw-r--r-- | src/core/devices/nm-device.c | 36 |
1 files changed, 21 insertions, 15 deletions
diff --git a/src/core/devices/nm-device.c b/src/core/devices/nm-device.c index eef31c39c2..97c92d5611 100644 --- a/src/core/devices/nm-device.c +++ b/src/core/devices/nm-device.c @@ -10689,10 +10689,30 @@ _commit_mtu(NMDevice *self, const NMIP4Config *config) } } +#define _IP6_MTU_SYS() \ + ({ \ + if (!ip6_mtu_sysctl.initialized) { \ + ip6_mtu_sysctl.value = nm_device_sysctl_ip_conf_get_int_checked(self, \ + AF_INET6, \ + "mtu", \ + 10, \ + 0, \ + G_MAXUINT32, \ + 0); \ + ip6_mtu_sysctl.initialized = TRUE; \ + } \ + ip6_mtu_sysctl.value; \ + }) + if (mtu_desired && NM_DEVICE_GET_CLASS(self)->mtu_force_set && !priv->mtu_force_set_done) { priv->mtu_force_set_done = TRUE; - if (mtu_desired == mtu_plat) { + if (!priv->mtu_initial && !priv->ip6_mtu_initial) { + /* before touching any of the MTU parameters, record the + * original setting to restore on deactivation. */ + priv->mtu_initial = mtu_plat; + priv->ip6_mtu_initial = _IP6_MTU_SYS(); + } mtu_plat--; if (NM_DEVICE_GET_CLASS(self)->set_platform_mtu(self, mtu_desired - 1)) { _LOGD(LOGD_DEVICE, "mtu: force-set MTU to %u", mtu_desired - 1); @@ -10711,20 +10731,6 @@ _commit_mtu(NMDevice *self, const NMIP4Config *config) ip6_mtu == ip6_mtu_orig ? "" : nm_sprintf_buf(sbuf2, " (was %u)", (guint) ip6_mtu_orig), ifindex); -#define _IP6_MTU_SYS() \ - ({ \ - if (!ip6_mtu_sysctl.initialized) { \ - ip6_mtu_sysctl.value = nm_device_sysctl_ip_conf_get_int_checked(self, \ - AF_INET6, \ - "mtu", \ - 10, \ - 0, \ - G_MAXUINT32, \ - 0); \ - ip6_mtu_sysctl.initialized = TRUE; \ - } \ - ip6_mtu_sysctl.value; \ - }) if ((mtu_desired && mtu_desired != mtu_plat) || (ip6_mtu && ip6_mtu != _IP6_MTU_SYS())) { gboolean anticipated_failure = FALSE; |