VLAN: Factor out per-vid code in newlink/dellink
To prepare for adding tagged VLAN support in vlan_init.c, vlan_newlink() and vlan_dellink() are split into multiple functions. This reduces indention and eases adding tagged VLANs as well. Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
This commit is contained in:
Michael Braun
Jouni Malinen
parent
8e44c192da
commit
f9c00188ca
|
|
@ -623,155 +623,182 @@ static int vlan_set_name_type(unsigned int name_type)
|
|||
#endif /* CONFIG_VLAN_NETLINK */
|
||||
|
||||
|
||||
static void vlan_newlink(char *ifname, struct hostapd_data *hapd)
|
||||
static void vlan_newlink_tagged(int vlan_naming, const char *tagged_interface,
|
||||
const char *br_name, int vid,
|
||||
struct hostapd_data *hapd)
|
||||
{
|
||||
char vlan_ifname[IFNAMSIZ];
|
||||
char br_name[IFNAMSIZ];
|
||||
struct hostapd_vlan *vlan = hapd->conf->vlan;
|
||||
int clean;
|
||||
|
||||
if (vlan_naming == DYNAMIC_VLAN_NAMING_WITH_DEVICE)
|
||||
os_snprintf(vlan_ifname, sizeof(vlan_ifname), "%s.%d",
|
||||
tagged_interface, vid);
|
||||
else
|
||||
os_snprintf(vlan_ifname, sizeof(vlan_ifname), "vlan%d", vid);
|
||||
|
||||
clean = 0;
|
||||
ifconfig_up(tagged_interface);
|
||||
if (!vlan_add(tagged_interface, vid, vlan_ifname))
|
||||
clean |= DVLAN_CLEAN_VLAN;
|
||||
|
||||
if (!br_addif(br_name, vlan_ifname))
|
||||
clean |= DVLAN_CLEAN_VLAN_PORT;
|
||||
|
||||
dyn_iface_get(hapd, vlan_ifname, clean);
|
||||
|
||||
ifconfig_up(vlan_ifname);
|
||||
}
|
||||
|
||||
|
||||
static void vlan_bridge_name(char *br_name, struct hostapd_data *hapd, int vid)
|
||||
{
|
||||
char *tagged_interface = hapd->conf->ssid.vlan_tagged_interface;
|
||||
int vlan_naming = hapd->conf->ssid.vlan_naming;
|
||||
int clean, untagged;
|
||||
|
||||
wpa_printf(MSG_DEBUG, "VLAN: vlan_newlink(%s)", ifname);
|
||||
|
||||
while (vlan) {
|
||||
untagged = vlan->vlan_desc.untagged;
|
||||
if (os_strcmp(ifname, vlan->ifname) == 0 && !vlan->configured) {
|
||||
vlan->configured = 1;
|
||||
|
||||
if (hapd->conf->vlan_bridge[0]) {
|
||||
os_snprintf(br_name, sizeof(br_name), "%s%d",
|
||||
hapd->conf->vlan_bridge,
|
||||
untagged);
|
||||
} else if (tagged_interface) {
|
||||
os_snprintf(br_name, sizeof(br_name),
|
||||
"br%s.%d", tagged_interface,
|
||||
untagged);
|
||||
} else {
|
||||
os_snprintf(br_name, sizeof(br_name),
|
||||
"brvlan%d", untagged);
|
||||
}
|
||||
|
||||
dyn_iface_get(hapd, br_name,
|
||||
br_addbr(br_name) ? 0 : DVLAN_CLEAN_BR);
|
||||
|
||||
ifconfig_up(br_name);
|
||||
|
||||
if (tagged_interface) {
|
||||
if (vlan_naming ==
|
||||
DYNAMIC_VLAN_NAMING_WITH_DEVICE)
|
||||
os_snprintf(vlan_ifname,
|
||||
sizeof(vlan_ifname),
|
||||
"%s.%d", tagged_interface,
|
||||
untagged);
|
||||
else
|
||||
os_snprintf(vlan_ifname,
|
||||
sizeof(vlan_ifname),
|
||||
"vlan%d", untagged);
|
||||
|
||||
clean = 0;
|
||||
ifconfig_up(tagged_interface);
|
||||
if (!vlan_add(tagged_interface, untagged,
|
||||
vlan_ifname))
|
||||
clean |= DVLAN_CLEAN_VLAN;
|
||||
|
||||
if (!br_addif(br_name, vlan_ifname))
|
||||
clean |= DVLAN_CLEAN_VLAN_PORT;
|
||||
|
||||
dyn_iface_get(hapd, vlan_ifname, clean);
|
||||
|
||||
ifconfig_up(vlan_ifname);
|
||||
}
|
||||
|
||||
if (!br_addif(br_name, ifname))
|
||||
vlan->clean |= DVLAN_CLEAN_WLAN_PORT;
|
||||
|
||||
ifconfig_up(ifname);
|
||||
|
||||
break;
|
||||
}
|
||||
vlan = vlan->next;
|
||||
if (hapd->conf->vlan_bridge[0]) {
|
||||
os_snprintf(br_name, IFNAMSIZ, "%s%d",
|
||||
hapd->conf->vlan_bridge, vid);
|
||||
} else if (tagged_interface) {
|
||||
os_snprintf(br_name, IFNAMSIZ, "br%s.%d",
|
||||
tagged_interface, vid);
|
||||
} else {
|
||||
os_snprintf(br_name, IFNAMSIZ, "brvlan%d", vid);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static void vlan_dellink(char *ifname, struct hostapd_data *hapd)
|
||||
static void vlan_get_bridge(const char *br_name, struct hostapd_data *hapd,
|
||||
int vid)
|
||||
{
|
||||
char vlan_ifname[IFNAMSIZ];
|
||||
char br_name[IFNAMSIZ];
|
||||
struct hostapd_vlan *first, *prev, *vlan = hapd->conf->vlan;
|
||||
char *tagged_interface = hapd->conf->ssid.vlan_tagged_interface;
|
||||
int vlan_naming = hapd->conf->ssid.vlan_naming;
|
||||
int clean, untagged;
|
||||
|
||||
dyn_iface_get(hapd, br_name, br_addbr(br_name) ? 0 : DVLAN_CLEAN_BR);
|
||||
|
||||
ifconfig_up(br_name);
|
||||
|
||||
if (tagged_interface)
|
||||
vlan_newlink_tagged(vlan_naming, tagged_interface, br_name,
|
||||
vid, hapd);
|
||||
}
|
||||
|
||||
|
||||
static void vlan_newlink(const char *ifname, struct hostapd_data *hapd)
|
||||
{
|
||||
char br_name[IFNAMSIZ];
|
||||
struct hostapd_vlan *vlan;
|
||||
int untagged;
|
||||
|
||||
wpa_printf(MSG_DEBUG, "VLAN: vlan_newlink(%s)", ifname);
|
||||
|
||||
for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
|
||||
if (vlan->configured ||
|
||||
os_strcmp(ifname, vlan->ifname) != 0)
|
||||
continue;
|
||||
break;
|
||||
}
|
||||
if (!vlan)
|
||||
return;
|
||||
|
||||
vlan->configured = 1;
|
||||
|
||||
untagged = vlan->vlan_desc.untagged;
|
||||
|
||||
if (untagged > 0 && untagged <= MAX_VLAN_ID) {
|
||||
vlan_bridge_name(br_name, hapd, untagged);
|
||||
|
||||
vlan_get_bridge(br_name, hapd, untagged);
|
||||
|
||||
if (!br_addif(br_name, ifname))
|
||||
vlan->clean |= DVLAN_CLEAN_WLAN_PORT;
|
||||
}
|
||||
|
||||
ifconfig_up(ifname);
|
||||
}
|
||||
|
||||
|
||||
static void vlan_dellink_tagged(int vlan_naming, const char *tagged_interface,
|
||||
const char *br_name, int vid,
|
||||
struct hostapd_data *hapd)
|
||||
{
|
||||
char vlan_ifname[IFNAMSIZ];
|
||||
int clean;
|
||||
|
||||
if (vlan_naming == DYNAMIC_VLAN_NAMING_WITH_DEVICE)
|
||||
os_snprintf(vlan_ifname, sizeof(vlan_ifname), "%s.%d",
|
||||
tagged_interface, vid);
|
||||
else
|
||||
os_snprintf(vlan_ifname, sizeof(vlan_ifname), "vlan%d", vid);
|
||||
|
||||
clean = dyn_iface_put(hapd, vlan_ifname);
|
||||
|
||||
if (clean & DVLAN_CLEAN_VLAN_PORT)
|
||||
br_delif(br_name, vlan_ifname);
|
||||
|
||||
if (clean & DVLAN_CLEAN_VLAN) {
|
||||
ifconfig_down(vlan_ifname);
|
||||
vlan_rem(vlan_ifname);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static void vlan_put_bridge(const char *br_name, struct hostapd_data *hapd,
|
||||
int vid)
|
||||
{
|
||||
int clean;
|
||||
char *tagged_interface = hapd->conf->ssid.vlan_tagged_interface;
|
||||
int vlan_naming = hapd->conf->ssid.vlan_naming;
|
||||
|
||||
if (tagged_interface)
|
||||
vlan_dellink_tagged(vlan_naming, tagged_interface, br_name,
|
||||
vid, hapd);
|
||||
|
||||
clean = dyn_iface_put(hapd, br_name);
|
||||
if ((clean & DVLAN_CLEAN_BR) && br_getnumports(br_name) == 0) {
|
||||
ifconfig_down(br_name);
|
||||
br_delbr(br_name);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static void vlan_dellink(const char *ifname, struct hostapd_data *hapd)
|
||||
{
|
||||
struct hostapd_vlan *first, *prev, *vlan = hapd->conf->vlan;
|
||||
|
||||
wpa_printf(MSG_DEBUG, "VLAN: vlan_dellink(%s)", ifname);
|
||||
|
||||
first = prev = vlan;
|
||||
|
||||
while (vlan) {
|
||||
untagged = vlan->vlan_desc.untagged;
|
||||
if (os_strcmp(ifname, vlan->ifname) == 0 &&
|
||||
vlan->configured) {
|
||||
if (hapd->conf->vlan_bridge[0]) {
|
||||
os_snprintf(br_name, sizeof(br_name), "%s%d",
|
||||
hapd->conf->vlan_bridge,
|
||||
untagged);
|
||||
} else if (tagged_interface) {
|
||||
os_snprintf(br_name, sizeof(br_name),
|
||||
"br%s.%d", tagged_interface,
|
||||
untagged);
|
||||
} else {
|
||||
os_snprintf(br_name, sizeof(br_name),
|
||||
"brvlan%d", untagged);
|
||||
}
|
||||
if (os_strcmp(ifname, vlan->ifname) != 0) {
|
||||
prev = vlan;
|
||||
vlan = vlan->next;
|
||||
continue;
|
||||
}
|
||||
break;
|
||||
}
|
||||
if (!vlan)
|
||||
return;
|
||||
|
||||
if (vlan->configured) {
|
||||
int untagged = vlan->vlan_desc.untagged;
|
||||
char br_name[IFNAMSIZ];
|
||||
|
||||
if (untagged > 0 && untagged <= MAX_VLAN_ID) {
|
||||
vlan_bridge_name(br_name, hapd, untagged);
|
||||
|
||||
if (vlan->clean & DVLAN_CLEAN_WLAN_PORT)
|
||||
br_delif(br_name, vlan->ifname);
|
||||
|
||||
if (tagged_interface) {
|
||||
if (vlan_naming ==
|
||||
DYNAMIC_VLAN_NAMING_WITH_DEVICE)
|
||||
os_snprintf(vlan_ifname,
|
||||
sizeof(vlan_ifname),
|
||||
"%s.%d", tagged_interface,
|
||||
untagged);
|
||||
else
|
||||
os_snprintf(vlan_ifname,
|
||||
sizeof(vlan_ifname),
|
||||
"vlan%d", untagged);
|
||||
|
||||
clean = dyn_iface_put(hapd, vlan_ifname);
|
||||
|
||||
if (clean & DVLAN_CLEAN_VLAN_PORT)
|
||||
br_delif(br_name, vlan_ifname);
|
||||
|
||||
if (clean & DVLAN_CLEAN_VLAN) {
|
||||
ifconfig_down(vlan_ifname);
|
||||
vlan_rem(vlan_ifname);
|
||||
}
|
||||
}
|
||||
|
||||
clean = dyn_iface_put(hapd, br_name);
|
||||
if ((clean & DVLAN_CLEAN_BR) &&
|
||||
br_getnumports(br_name) == 0) {
|
||||
ifconfig_down(br_name);
|
||||
br_delbr(br_name);
|
||||
}
|
||||
vlan_put_bridge(br_name, hapd, untagged);
|
||||
}
|
||||
|
||||
if (os_strcmp(ifname, vlan->ifname) == 0) {
|
||||
if (vlan == first) {
|
||||
hapd->conf->vlan = vlan->next;
|
||||
} else {
|
||||
prev->next = vlan->next;
|
||||
}
|
||||
os_free(vlan);
|
||||
|
||||
break;
|
||||
}
|
||||
prev = vlan;
|
||||
vlan = vlan->next;
|
||||
}
|
||||
|
||||
if (vlan == first)
|
||||
hapd->conf->vlan = vlan->next;
|
||||
else
|
||||
prev->next = vlan->next;
|
||||
|
||||
os_free(vlan);
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue