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-rw-r--r--README3
-rw-r--r--src/config.c45
-rw-r--r--src/dhcpv4.c6
-rw-r--r--src/dhcpv6-ia.c19
-rw-r--r--src/dhcpv6.c4
-rw-r--r--src/ndp.c6
-rw-r--r--src/router.c8
7 files changed, 55 insertions, 36 deletions
diff --git a/README b/README
index 49e1c51..a379c4c 100644
--- a/README
+++ b/README
@@ -73,9 +73,6 @@ Option Type Default Description
interface string <name of UCI section> logical OpenWrt interface
ifname string <resolved from logical> physical network interface
networkid string same as ifname compat. alias for ifname
-ignore bool 0 do not serve this interface
- unless overridden by ra, ndp,
- dhcpv4 or dhcpv6 options
master bool 0 is a master interface
for relaying
diff --git a/src/config.c b/src/config.c
index 40f18a4..3f64d16 100644
--- a/src/config.c
+++ b/src/config.c
@@ -40,7 +40,6 @@ enum {
IFACE_ATTR_IFNAME,
IFACE_ATTR_NETWORKID,
IFACE_ATTR_DYNAMICDHCP,
- IFACE_ATTR_IGNORE,
IFACE_ATTR_LEASETIME,
IFACE_ATTR_LIMIT,
IFACE_ATTR_START,
@@ -86,7 +85,6 @@ static const struct blobmsg_policy iface_attrs[IFACE_ATTR_MAX] = {
[IFACE_ATTR_IFNAME] = { .name = "ifname", .type = BLOBMSG_TYPE_STRING },
[IFACE_ATTR_NETWORKID] = { .name = "networkid", .type = BLOBMSG_TYPE_STRING },
[IFACE_ATTR_DYNAMICDHCP] = { .name = "dynamicdhcp", .type = BLOBMSG_TYPE_BOOL },
- [IFACE_ATTR_IGNORE] = { .name = "ignore", .type = BLOBMSG_TYPE_BOOL },
[IFACE_ATTR_LEASETIME] = { .name = "leasetime", .type = BLOBMSG_TYPE_STRING },
[IFACE_ATTR_START] = { .name = "start", .type = BLOBMSG_TYPE_INT32 },
[IFACE_ATTR_LIMIT] = { .name = "limit", .type = BLOBMSG_TYPE_INT32 },
@@ -211,6 +209,11 @@ static int mkdir_p(char *dir, mode_t mask)
static void set_interface_defaults(struct interface *iface)
{
+ iface->ignore = true;
+ iface->dhcpv4 = MODE_DISABLED;
+ iface->dhcpv6 = MODE_DISABLED;
+ iface->ra = MODE_DISABLED;
+ iface->ndp = MODE_DISABLED;
iface->learn_routes = 1;
iface->dhcpv4_leasetime = 43200;
iface->dhcpv4_start.s_addr = htonl(START_DEFAULT);
@@ -496,9 +499,6 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
if ((c = tb[IFACE_ATTR_DYNAMICDHCP]))
iface->no_dynamic_dhcp = !blobmsg_get_bool(c);
- if (overwrite && (c = tb[IFACE_ATTR_IGNORE]))
- iface->ignore = blobmsg_get_bool(c);
-
if ((c = tb[IFACE_ATTR_LEASETIME])) {
double time = parse_leasetime(c);
if (time < 0)
@@ -543,32 +543,45 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
int mode;
if ((c = tb[IFACE_ATTR_RA])) {
- if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
+ if ((mode = parse_mode(blobmsg_get_string(c))) >= 0) {
iface->ra = mode;
- else
+
+ if (iface->ra != MODE_DISABLED)
+ iface->ignore = false;
+ } else
goto err;
}
if ((c = tb[IFACE_ATTR_DHCPV4])) {
if ((mode = parse_mode(blobmsg_get_string(c))) >= 0) {
- if (config.main_dhcpv4)
+ if (config.main_dhcpv4) {
iface->dhcpv4 = mode;
+
+ if (iface->dhcpv4 != MODE_DISABLED)
+ iface->ignore = false;
+ }
}
else
goto err;
}
if ((c = tb[IFACE_ATTR_DHCPV6])) {
- if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
+ if ((mode = parse_mode(blobmsg_get_string(c))) >= 0) {
iface->dhcpv6 = mode;
- else
+
+ if (iface->dhcpv6 != MODE_DISABLED)
+ iface->ignore = false;
+ } else
goto err;
}
if ((c = tb[IFACE_ATTR_NDP])) {
- if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
+ if ((mode = parse_mode(blobmsg_get_string(c))) >= 0) {
iface->ndp = mode;
- else
+
+ if (iface->ndp != MODE_DISABLED)
+ iface->ignore = false;
+ } else
goto err;
}
@@ -1067,11 +1080,11 @@ void odhcpd_reload(void)
i->ndp = (master && master->ndp == MODE_RELAY) ?
MODE_RELAY : MODE_DISABLED;
- router_setup_interface(i, !i->ignore || i->ra != MODE_DISABLED);
- dhcpv6_setup_interface(i, !i->ignore || i->dhcpv6 != MODE_DISABLED);
- ndp_setup_interface(i, !i->ignore || i->ndp != MODE_DISABLED);
+ router_setup_interface(i, i->ra != MODE_DISABLED);
+ dhcpv6_setup_interface(i, i->dhcpv6 != MODE_DISABLED);
+ ndp_setup_interface(i, i->ndp != MODE_DISABLED);
#ifdef DHCPV4_SUPPORT
- dhcpv4_setup_interface(i, !i->ignore || i->dhcpv4 != MODE_DISABLED);
+ dhcpv4_setup_interface(i, i->dhcpv4 != MODE_DISABLED);
#endif
} else
close_interface(i);
diff --git a/src/dhcpv4.c b/src/dhcpv4.c
index 2634f65..34d925c 100644
--- a/src/dhcpv4.c
+++ b/src/dhcpv4.c
@@ -77,13 +77,15 @@ int dhcpv4_setup_interface(struct interface *iface, bool enable)
{
int ret = 0;
+ enable = enable && (iface->dhcpv4 != MODE_DISABLED);
+
if (iface->dhcpv4_event.uloop.fd >= 0) {
uloop_fd_delete(&iface->dhcpv4_event.uloop);
close(iface->dhcpv4_event.uloop.fd);
iface->dhcpv4_event.uloop.fd = -1;
}
- if (iface->dhcpv4 && enable) {
+ if (enable) {
struct sockaddr_in bind_addr = {AF_INET, htons(DHCPV4_SERVER_PORT),
{INADDR_ANY}, {0}};
int val = 1;
@@ -592,7 +594,7 @@ static void handle_dhcpv4(void *addr, void *data, size_t len,
{
struct dhcpv4_message *req = data;
- if (!iface->dhcpv4)
+ if (iface->dhcpv4 == MODE_DISABLED)
return;
if (len < offsetof(struct dhcpv4_message, options) + 4 ||
diff --git a/src/dhcpv6-ia.c b/src/dhcpv6-ia.c
index 9559b96..c0dfa2d 100644
--- a/src/dhcpv6-ia.c
+++ b/src/dhcpv6-ia.c
@@ -62,16 +62,9 @@ int dhcpv6_ia_init(void)
int dhcpv6_ia_setup_interface(struct interface *iface, bool enable)
{
- if (!enable) {
- struct dhcp_assignment *c;
-
- while (!list_empty(&iface->ia_assignments)) {
- c = list_first_entry(&iface->ia_assignments, struct dhcp_assignment, head);
- free_assignment(c);
- }
- }
+ enable = enable && (iface->dhcpv6 == MODE_SERVER);
- if (enable && iface->dhcpv6 == MODE_SERVER) {
+ if (enable) {
struct dhcp_assignment *border;
if (list_empty(&iface->ia_assignments)) {
@@ -88,7 +81,15 @@ int dhcpv6_ia_setup_interface(struct interface *iface, bool enable)
border = list_last_entry(&iface->ia_assignments, struct dhcp_assignment, head);
set_border_assignment_size(iface, border);
+ } else {
+ struct dhcp_assignment *c;
+
+ while (!list_empty(&iface->ia_assignments)) {
+ c = list_first_entry(&iface->ia_assignments, struct dhcp_assignment, head);
+ free_assignment(c);
+ }
}
+
return 0;
}
diff --git a/src/dhcpv6.c b/src/dhcpv6.c
index f71418d..c61a8aa 100644
--- a/src/dhcpv6.c
+++ b/src/dhcpv6.c
@@ -47,6 +47,8 @@ int dhcpv6_setup_interface(struct interface *iface, bool enable)
{
int ret = 0;
+ enable = enable && (iface->dhcpv6 != MODE_DISABLED);
+
if (iface->dhcpv6_event.uloop.fd >= 0) {
uloop_fd_delete(&iface->dhcpv6_event.uloop);
close(iface->dhcpv6_event.uloop.fd);
@@ -54,7 +56,7 @@ int dhcpv6_setup_interface(struct interface *iface, bool enable)
}
/* Configure multicast settings */
- if (enable && iface->dhcpv6) {
+ if (enable) {
struct sockaddr_in6 bind_addr = {AF_INET6, htons(DHCPV6_SERVER_PORT),
0, IN6ADDR_ANY_INIT, 0};
struct ipv6_mreq mreq;
diff --git a/src/ndp.c b/src/ndp.c
index 64a6c1c..aaaa69c 100644
--- a/src/ndp.c
+++ b/src/ndp.c
@@ -71,6 +71,8 @@ int ndp_setup_interface(struct interface *iface, bool enable)
bool dump_neigh = false;
char procbuf[64];
+ enable = enable && (iface->ndp == MODE_RELAY);
+
snprintf(procbuf, sizeof(procbuf), "/proc/sys/net/ipv6/conf/%s/proxy_ndp", iface->ifname);
procfd = open(procbuf, O_WRONLY);
@@ -89,13 +91,13 @@ int ndp_setup_interface(struct interface *iface, bool enable)
close(iface->ndp_event.uloop.fd);
iface->ndp_event.uloop.fd = -1;
- if (!enable || iface->ndp != MODE_RELAY)
+ if (!enable)
if (write(procfd, "0\n", 2) < 0) {}
dump_neigh = true;
}
- if (enable && iface->ndp == MODE_RELAY) {
+ if (enable) {
struct sockaddr_ll ll;
struct packet_mreq mreq;
struct icmp6_filter filt;
diff --git a/src/router.c b/src/router.c
index 3a6b121..63571a3 100644
--- a/src/router.c
+++ b/src/router.c
@@ -74,13 +74,15 @@ int router_setup_interface(struct interface *iface, bool enable)
{
int ret = 0;
+ enable = enable && (iface->ra != MODE_DISABLED);
+
if (!fp_route) {
ret = -1;
goto out;
}
- if ((!enable || iface->ra == MODE_DISABLED) && iface->router_event.uloop.fd >= 0) {
+ if (!enable && iface->router_event.uloop.fd >= 0) {
if (!iface->master) {
uloop_timeout_cancel(&iface->timer_rs);
iface->timer_rs.cb = NULL;
@@ -91,7 +93,7 @@ int router_setup_interface(struct interface *iface, bool enable)
uloop_fd_delete(&iface->router_event.uloop);
close(iface->router_event.uloop.fd);
iface->router_event.uloop.fd = -1;
- } else if (enable && iface->ra != MODE_DISABLED) {
+ } else if (enable) {
struct icmp6_filter filt;
struct ipv6_mreq mreq;
int val = 2;
@@ -434,7 +436,7 @@ static int send_router_advert(struct interface *iface, const struct in6_addr *fr
if (hlim > 0)
adv.h.nd_ra_curhoplimit = hlim;
- if (iface->dhcpv6) {
+ if (iface->dhcpv6 != MODE_DISABLED) {
adv.h.nd_ra_flags_reserved = ND_RA_FLAG_OTHER;
if (iface->ra_managed >= RA_MANAGED_MFLAG)
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 06:49:37 +0000