config: make RA mtu configurable via UCI

[project/odhcpd.git] / src / config.c

diff --git a/src/config.c b/src/config.c
index 943f243..d6b4e81 100644 (file)
--- a/src/config.c
+++ b/src/config.c
@@ -17,8 +17,9 @@ static struct blob_buf b;
 static int reload_pipe[2];
 struct list_head leases = LIST_HEAD_INIT(leases);
 struct list_head interfaces = LIST_HEAD_INIT(interfaces);
 static int reload_pipe[2];
 struct list_head leases = LIST_HEAD_INIT(leases);
 struct list_head interfaces = LIST_HEAD_INIT(interfaces);

-struct config config = {.legacy = false, .dhcp_cb = NULL,
-                       .dhcp_statefile = NULL, .log_level = LOG_INFO};
+struct config config = {.legacy = false, .main_dhcpv4 = false,
+                       .dhcp_cb = NULL, .dhcp_statefile = NULL,
+                       .log_level = LOG_INFO};

 
 enum {
        IFACE_ATTR_INTERFACE,
 
 enum {
        IFACE_ATTR_INTERFACE,


@@ -49,6 +50,7 @@ enum {
        IFACE_ATTR_RA_MAXINTERVAL,
        IFACE_ATTR_RA_LIFETIME,
        IFACE_ATTR_RA_USELEASETIME,
        IFACE_ATTR_RA_MAXINTERVAL,
        IFACE_ATTR_RA_LIFETIME,
        IFACE_ATTR_RA_USELEASETIME,

+       IFACE_ATTR_RA_MTU,

        IFACE_ATTR_PD_MANAGER,
        IFACE_ATTR_PD_CER,
        IFACE_ATTR_NDPROXY_ROUTING,
        IFACE_ATTR_PD_MANAGER,
        IFACE_ATTR_PD_CER,
        IFACE_ATTR_NDPROXY_ROUTING,


@@ -87,6 +89,7 @@ static const struct blobmsg_policy iface_attrs[IFACE_ATTR_MAX] = {
        [IFACE_ATTR_RA_MAXINTERVAL] = { .name = "ra_maxinterval", .type = BLOBMSG_TYPE_INT32 },
        [IFACE_ATTR_RA_LIFETIME] = { .name = "ra_lifetime", .type = BLOBMSG_TYPE_INT32 },
        [IFACE_ATTR_RA_USELEASETIME] = { .name = "ra_useleasetime", .type = BLOBMSG_TYPE_BOOL },
        [IFACE_ATTR_RA_MAXINTERVAL] = { .name = "ra_maxinterval", .type = BLOBMSG_TYPE_INT32 },
        [IFACE_ATTR_RA_LIFETIME] = { .name = "ra_lifetime", .type = BLOBMSG_TYPE_INT32 },
        [IFACE_ATTR_RA_USELEASETIME] = { .name = "ra_useleasetime", .type = BLOBMSG_TYPE_BOOL },

+       [IFACE_ATTR_RA_MTU] = { .name = "ra_mtu", .type = BLOBMSG_TYPE_INT32 },

        [IFACE_ATTR_NDPROXY_ROUTING] = { .name = "ndproxy_routing", .type = BLOBMSG_TYPE_BOOL },
        [IFACE_ATTR_NDPROXY_SLAVE] = { .name = "ndproxy_slave", .type = BLOBMSG_TYPE_BOOL },
 };
        [IFACE_ATTR_NDPROXY_ROUTING] = { .name = "ndproxy_routing", .type = BLOBMSG_TYPE_BOOL },
        [IFACE_ATTR_NDPROXY_SLAVE] = { .name = "ndproxy_slave", .type = BLOBMSG_TYPE_BOOL },
 };


@@ -128,6 +131,7 @@ const struct uci_blob_param_list lease_attr_list = {
 };
 
 enum {
 };
 
 enum {

+       ODHCPD_ATTR_LEGACY,

        ODHCPD_ATTR_MAINDHCP,
        ODHCPD_ATTR_LEASEFILE,
        ODHCPD_ATTR_LEASETRIGGER,
        ODHCPD_ATTR_MAINDHCP,
        ODHCPD_ATTR_LEASEFILE,
        ODHCPD_ATTR_LEASETRIGGER,


@@ -136,6 +140,7 @@ enum {
 };
 
 static const struct blobmsg_policy odhcpd_attrs[LEASE_ATTR_MAX] = {
 };
 
 static const struct blobmsg_policy odhcpd_attrs[LEASE_ATTR_MAX] = {

+       [ODHCPD_ATTR_LEGACY] = { .name = "legacy", .type = BLOBMSG_TYPE_BOOL },

        [ODHCPD_ATTR_MAINDHCP] = { .name = "maindhcp", .type = BLOBMSG_TYPE_BOOL },
        [ODHCPD_ATTR_LEASEFILE] = { .name = "leasefile", .type = BLOBMSG_TYPE_STRING },
        [ODHCPD_ATTR_LEASETRIGGER] = { .name = "leasetrigger", .type = BLOBMSG_TYPE_STRING },
        [ODHCPD_ATTR_MAINDHCP] = { .name = "maindhcp", .type = BLOBMSG_TYPE_BOOL },
        [ODHCPD_ATTR_LEASEFILE] = { .name = "leasefile", .type = BLOBMSG_TYPE_STRING },
        [ODHCPD_ATTR_LEASETRIGGER] = { .name = "leasetrigger", .type = BLOBMSG_TYPE_STRING },


@@ -249,9 +254,12 @@ static void set_config(struct uci_section *s)
        uci_to_blob(&b, s, &odhcpd_attr_list);
        blobmsg_parse(odhcpd_attrs, ODHCPD_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
 
        uci_to_blob(&b, s, &odhcpd_attr_list);
        blobmsg_parse(odhcpd_attrs, ODHCPD_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
 

-       if ((c = tb[ODHCPD_ATTR_MAINDHCP]))
+       if ((c = tb[ODHCPD_ATTR_LEGACY]))

                config.legacy = blobmsg_get_bool(c);
 
                config.legacy = blobmsg_get_bool(c);
 

+       if ((c = tb[ODHCPD_ATTR_MAINDHCP]))
+               config.main_dhcpv4 = blobmsg_get_bool(c);
+

        if ((c = tb[ODHCPD_ATTR_LEASEFILE])) {
                free(config.dhcp_statefile);
                config.dhcp_statefile = strdup(blobmsg_get_string(c));
        if ((c = tb[ODHCPD_ATTR_LEASEFILE])) {
                free(config.dhcp_statefile);
                config.dhcp_statefile = strdup(blobmsg_get_string(c));


@@ -433,7 +441,7 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
        if ((c = tb[IFACE_ATTR_START])) {
                iface->dhcpv4_start.s_addr = htonl(blobmsg_get_u32(c));
 
        if ((c = tb[IFACE_ATTR_START])) {
                iface->dhcpv4_start.s_addr = htonl(blobmsg_get_u32(c));
 

-               if (config.legacy)
+               if (config.main_dhcpv4 && config.legacy)

                        iface->dhcpv4 = RELAYD_SERVER;
        }
 
                        iface->dhcpv4 = RELAYD_SERVER;
        }
 


@@ -471,8 +479,10 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
        }
 
        if ((c = tb[IFACE_ATTR_DHCPV4])) {
        }
 
        if ((c = tb[IFACE_ATTR_DHCPV4])) {

-               if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
-                       iface->dhcpv4 = mode;
+               if ((mode = parse_mode(blobmsg_get_string(c))) >= 0) {
+                       if (config.main_dhcpv4)
+                               iface->dhcpv4 = mode;
+               }

                else
                        goto err;
        }
                else
                        goto err;
        }


@@ -586,6 +596,12 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
        if ((c = tb[IFACE_ATTR_RA_MANAGEMENT]))
                iface->managed = blobmsg_get_u32(c);
 
        if ((c = tb[IFACE_ATTR_RA_MANAGEMENT]))
                iface->managed = blobmsg_get_u32(c);
 

+       if ((c = tb[IFACE_ATTR_RA_MTU])) {
+               iface->ra_mtu = blobmsg_get_u32(c);
+               if (iface->ra_mtu < 1280)
+                       goto err;
+       }
+

        if ((c = tb[IFACE_ATTR_RA_OFFLINK]))
                iface->ra_not_onlink = blobmsg_get_bool(c);
 
        if ((c = tb[IFACE_ATTR_RA_OFFLINK]))
                iface->ra_not_onlink = blobmsg_get_bool(c);