diff options
Diffstat (limited to 'proto.c')
| -rw-r--r-- | proto.c | 117 |
1 files changed, 96 insertions, 21 deletions
@@ -60,6 +60,18 @@ const struct config_param_list proto_ip_attr = { .info = proto_ip_attr_info, }; +enum { + ADDR_IPADDR, + ADDR_MASK, + ADDR_BROADCAST, + __ADDR_MAX +}; + +static const struct blobmsg_policy proto_ip_addr[__ADDR_MAX] = { + [ADDR_IPADDR] = { .name = "ipaddr", .type = BLOBMSG_TYPE_STRING }, + [ADDR_MASK] = { .name = "mask", .type = BLOBMSG_TYPE_STRING }, + [ADDR_BROADCAST] = { .name = "broadcast", .type = BLOBMSG_TYPE_STRING }, +}; unsigned int parse_netmask_string(const char *str, bool v6) @@ -122,18 +134,15 @@ parse_ip_and_netmask(int af, const char *str, void *addr, unsigned int *netmask) } static struct device_addr * -proto_parse_ip_addr_string(const char *str, bool v6, int mask) +alloc_device_addr(bool v6, bool ext) { struct device_addr *addr; - int af = v6 ? AF_INET6 : AF_INET; addr = calloc(1, sizeof(*addr)); addr->flags = v6 ? DEVADDR_INET6 : DEVADDR_INET4; - addr->mask = mask; - if (!parse_ip_and_netmask(af, str, &addr->addr, &addr->mask)) { - free(addr); - return NULL; - } + if (ext) + addr->flags |= DEVADDR_EXTERNAL; + return addr; } @@ -142,26 +151,29 @@ parse_addr(struct interface *iface, const char *str, bool v6, int mask, bool ext, uint32_t broadcast) { struct device_addr *addr; + int af = v6 ? AF_INET6 : AF_INET; + + addr = alloc_device_addr(v6, ext); + if (!addr) + return false; - addr = proto_parse_ip_addr_string(str, v6, mask); - if (!addr) { + addr->mask = mask; + if (!parse_ip_and_netmask(af, str, &addr->addr, &addr->mask)) { interface_add_error(iface, "proto", "INVALID_ADDRESS", &str, 1); + free(addr); return false; } if (broadcast) addr->broadcast = broadcast; - if (ext) - addr->flags |= DEVADDR_EXTERNAL; - vlist_add(&iface->proto_ip.addr, &addr->node, &addr->flags); return true; } static int -parse_address_option(struct interface *iface, struct blob_attr *attr, bool v6, - int netmask, bool ext, uint32_t broadcast) +parse_static_address_option(struct interface *iface, struct blob_attr *attr, + bool v6, int netmask, bool ext, uint32_t broadcast) { struct blob_attr *cur; int n_addr = 0; @@ -180,6 +192,72 @@ parse_address_option(struct interface *iface, struct blob_attr *attr, bool v6, return n_addr; } +static struct device_addr * +parse_address_item(struct blob_attr *attr, bool v6, bool ext) +{ + struct device_addr *addr; + struct blob_attr *tb[__ADDR_MAX]; + struct blob_attr *cur; + + if (blobmsg_type(attr) != BLOBMSG_TYPE_TABLE) + return NULL; + + addr = alloc_device_addr(v6, ext); + if (!addr) + return NULL; + + blobmsg_parse(proto_ip_addr, __ADDR_MAX, tb, blobmsg_data(attr), blobmsg_data_len(attr)); + + addr->mask = v6 ? 128 : 32; + if ((cur = tb[ADDR_MASK])) { + unsigned int new_mask; + + new_mask = parse_netmask_string(blobmsg_data(cur), v6); + if (new_mask > addr->mask) + goto error; + + addr->mask = new_mask; + } + + cur = tb[ADDR_IPADDR]; + if (!cur) + goto error; + + if (!inet_pton(v6 ? AF_INET6 : AF_INET, blobmsg_data(cur), &addr->addr)) + goto error; + + if (!v6 && (cur = tb[ADDR_BROADCAST])) { + if (!inet_pton(AF_INET, blobmsg_data(cur), &addr->broadcast)) + goto error; + } + + return addr; + +error: + free(addr); + return NULL; +} + +static int +parse_address_list(struct interface *iface, struct blob_attr *attr, bool v6, + bool ext) +{ + struct device_addr *addr; + struct blob_attr *cur; + int n_addr = 0; + int rem; + + blobmsg_for_each_attr(cur, attr, rem) { + addr = parse_address_item(cur, v6, ext); + if (!addr) + return -1; + + n_addr++; + vlist_add(&iface->proto_ip.addr, &addr->node, &addr->flags); + } + + return n_addr; +} static bool parse_gateway_option(struct interface *iface, struct blob_attr *attr, bool v6) @@ -230,11 +308,11 @@ proto_apply_static_ip_settings(struct interface *iface, struct blob_attr *attr) } if ((cur = tb[OPT_IPADDR])) - n_v4 = parse_address_option(iface, cur, false, + n_v4 = parse_static_address_option(iface, cur, false, netmask, false, bcast.s_addr); if ((cur = tb[OPT_IP6ADDR])) - n_v6 = parse_address_option(iface, cur, true, + n_v6 = parse_static_address_option(iface, cur, true, netmask, false, 0); if (!n_v4 && !n_v6) { @@ -276,17 +354,14 @@ proto_apply_ip_settings(struct interface *iface, struct blob_attr *attr, bool ex struct blob_attr *cur; const char *error; int n_v4 = 0, n_v6 = 0; - struct in_addr bcast = {}; blobmsg_parse(proto_ip_attributes, __OPT_MAX, tb, blob_data(attr), blob_len(attr)); if ((cur = tb[OPT_IPADDR])) - n_v4 = parse_address_option(iface, cur, false, - 32, ext, bcast.s_addr); + n_v4 = parse_address_list(iface, cur, false, ext); if ((cur = tb[OPT_IP6ADDR])) - n_v6 = parse_address_option(iface, cur, true, - 128, ext, 0); + n_v6 = parse_address_list(iface, cur, true, ext); if (!n_v4 && !n_v6) { error = "NO_ADDRESS"; |