From: Jo-Philipp Wich Date: Thu, 31 Oct 2019 13:01:38 +0000 (+0100) Subject: libs: add rpcd-mod-luci X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=b292c1d5fa1773c76162fd35fe5324c774a9cf87;p=oweals%2Fluci.git libs: add rpcd-mod-luci Add rpcd-mod-luci, a fast rpcd C plugin for speeding up common backend ubus operations. Signed-off-by: Jo-Philipp Wich --- diff --git a/libs/rpcd-mod-luci/Makefile b/libs/rpcd-mod-luci/Makefile new file mode 100644 index 000000000..8efeee9d2 --- /dev/null +++ b/libs/rpcd-mod-luci/Makefile @@ -0,0 +1,54 @@ +# +# Copyright (C) 2016-2017 Jo-Philipp Wich +# +# Licensed under the Apache License, Version 2.0. +# + +include $(TOPDIR)/rules.mk + +PKG_NAME:=rpcd-mod-luci +PKG_VERSION:=20191031 +PKG_MAINTAINER:=Jo-Philipp Wich + +PKG_LICENSE:=Apache-2.0 + +PKG_BUILD_PARALLEL:=1 + +include $(INCLUDE_DIR)/package.mk +include $(INCLUDE_DIR)/cmake.mk + +TARGET_CFLAGS += \ + -I$(STAGING_DIR)/usr/include/libnl-tiny \ + -I$(STAGING_DIR)/usr/include \ + +CMAKE_OPTIONS += \ + -DLIBNL_LIBS=-lnl-tiny \ + +define Build/Prepare + $(INSTALL_DIR) $(PKG_BUILD_DIR) + $(CP) ./src/* $(PKG_BUILD_DIR)/ +endef + +define Package/rpcd-mod-luci + SECTION:=libs + CATEGORY:=Libraries + TITLE:=Rapid reverse DNS rpcd module + DEPENDS:=+rpcd +libubox +libubus +libiwinfo +endef + +define Package/rpcd-mod-luci/description + Provides rapid mass reverse DNS lookup functionality. +endef + +define Package/rpcd-mod-luci/install + $(INSTALL_DIR) $(1)/usr/lib/rpcd + $(INSTALL_BIN) $(PKG_BUILD_DIR)/luci.so $(1)/usr/lib/rpcd/ +endef + +define Package/rpcd-mod-luci/postinst +#!/bin/sh +killall -HUP rpcd 2>/dev/null +exit 0 +endef + +$(eval $(call BuildPackage,rpcd-mod-luci)) diff --git a/libs/rpcd-mod-luci/src/CMakeLists.txt b/libs/rpcd-mod-luci/src/CMakeLists.txt new file mode 100644 index 000000000..91569b92f --- /dev/null +++ b/libs/rpcd-mod-luci/src/CMakeLists.txt @@ -0,0 +1,23 @@ +cmake_minimum_required(VERSION 2.6) + +PROJECT(rpcd-mod-luci C) + +ADD_DEFINITIONS(-Os -Wall -Werror --std=gnu99 -g3 -Wmissing-declarations) + +SET(CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "") + +IF(APPLE) + INCLUDE_DIRECTORIES(/opt/local/include) + LINK_DIRECTORIES(/opt/local/lib) +ENDIF() + +IF (NOT DEFINED LIBNL_LIBS) + FIND_LIBRARY(libnl NAMES libnl-3 libnl nl-3 nl) + SET(LIBNL_LIBS ${libnl}) +ENDIF() + +ADD_LIBRARY(rpcd-mod-luci MODULE luci.c) +TARGET_LINK_LIBRARIES(rpcd-mod-luci ubox ubus uci dl ${LIBNL_LIBS}) +SET_TARGET_PROPERTIES(rpcd-mod-luci PROPERTIES OUTPUT_NAME luci PREFIX "") + +INSTALL(TARGETS rpcd-mod-luci LIBRARY DESTINATION lib) diff --git a/libs/rpcd-mod-luci/src/luci.c b/libs/rpcd-mod-luci/src/luci.c new file mode 100644 index 000000000..04d3a15b7 --- /dev/null +++ b/libs/rpcd-mod-luci/src/luci.c @@ -0,0 +1,1757 @@ +/* + * luci - LuCI core functions plugin for rpcd + * + * Copyright (C) 2019 Jo-Philipp Wich + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#define _GNU_SOURCE + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include +#include +#include +#include +#include + +#include + +#include + +#include + + +static struct blob_buf blob; + +struct reply_context { + struct ubus_context *context; + struct ubus_request_data request; + struct uloop_timeout timeout; + struct blob_buf blob; + struct avl_tree avl; + int pending; +}; + +struct invoke_context { + struct ubus_request request; + struct uloop_timeout timeout; + struct ubus_context *context; + void (*cb)(struct ubus_request *, int, struct blob_attr *); + void *priv; +}; + +static const char **iw_modenames; +static struct iwinfo_ops *(*iw_backend)(const char *); +static void (*iw_close)(void); + +static void +invoke_data_cb(struct ubus_request *req, int type, struct blob_attr *msg) +{ + struct invoke_context *ictx = + container_of(req, struct invoke_context, request); + + if (ictx->cb != NULL) + ictx->cb(req, type, msg); +} + +static void +invoke_done_cb(struct ubus_request *req, int ret) +{ + struct invoke_context *ictx = + container_of(req, struct invoke_context, request); + + uloop_timeout_cancel(&ictx->timeout); + free(ictx); +} + +static void +invoke_timeout_cb(struct uloop_timeout *timeout) +{ + struct invoke_context *ictx = + container_of(timeout, struct invoke_context, timeout); + + if (ictx->cb != NULL) + ictx->cb(&ictx->request, -1, NULL); + + ubus_abort_request(ictx->context, &ictx->request); + free(ictx); +} + +static struct reply_context * +defer_request(struct ubus_context *ctx, struct ubus_request_data *req) +{ + struct reply_context *rctx; + + rctx = calloc(1, sizeof(*rctx)); + + if (!rctx) + return NULL; + + rctx->context = ctx; + blob_buf_init(&rctx->blob, 0); + ubus_defer_request(ctx, req, &rctx->request); + + return rctx; +} + +static int +finish_request(struct reply_context *rctx, int status) +{ + if (status == UBUS_STATUS_OK) + ubus_send_reply(rctx->context, &rctx->request, rctx->blob.head); + + ubus_complete_deferred_request(rctx->context, &rctx->request, status); + blob_buf_free(&rctx->blob); + free(rctx); + + return status; +} + +static bool +invoke_ubus(struct ubus_context *ctx, const char *object, const char *method, + struct blob_buf *req, + void (*cb)(struct ubus_request *, int, struct blob_attr *), + void *priv) +{ + struct invoke_context *ictx; + struct blob_buf empty = {}; + uint32_t id; + bool rv; + + if (ubus_lookup_id(ctx, object, &id)) + return false; + + if (req == NULL) { + blob_buf_init(&empty, 0); + req = ∅ + } + + ictx = calloc(1, sizeof(*ictx)); + + if (ictx == NULL) + return false; + + ictx->context = ctx; + rv = !ubus_invoke_async(ctx, id, method, req->head, &ictx->request); + + if (rv) { + ictx->cb = cb; + ictx->request.priv = priv; + ictx->request.data_cb = invoke_data_cb; + ictx->request.complete_cb = invoke_done_cb; + ubus_complete_request_async(ctx, &ictx->request); + + ictx->timeout.cb = invoke_timeout_cb; + uloop_timeout_set(&ictx->timeout, 2000); + } + else { + if (cb != NULL) + cb(&ictx->request, -1, NULL); + + free(ictx); + } + + if (req == &empty) + blob_buf_free(req); + + return rv; +} + +static char * +readstr(const char *fmt, ...) +{ + static char data[128]; + char path[128]; + va_list ap; + size_t n; + FILE *f; + + va_start(ap, fmt); + vsnprintf(path, sizeof(path), fmt, ap); + va_end(ap); + + data[0] = 0; + f = fopen(path, "r"); + + if (f != NULL) { + n = fread(data, 1, sizeof(data) - 1, f); + data[n] = 0; + + while (n > 0 && isspace(data[n-1])) + data[--n] = 0; + + fclose(f); + } + + return data; +} + +static char * +ea2str(struct ether_addr *ea) +{ + static char mac[18]; + + if (!ea) + return NULL; + + snprintf(mac, sizeof(mac), "%02X:%02X:%02X:%02X:%02X:%02X", + ea->ether_addr_octet[0], ea->ether_addr_octet[1], + ea->ether_addr_octet[2], ea->ether_addr_octet[3], + ea->ether_addr_octet[4], ea->ether_addr_octet[5]); + + return mac; +} + +static char * +sa2str(struct sockaddr *sa) +{ + static char buf[INET6_ADDRSTRLEN]; + union { + struct sockaddr_in6 *in6; + struct sockaddr_in *in; + struct sockaddr_ll *ll; + struct sockaddr *sa; + } s; + + s.sa = sa; + + if (s.sa->sa_family == AF_INET) + inet_ntop(sa->sa_family, &s.in->sin_addr, buf, sizeof(buf)); + else if (s.sa->sa_family == AF_INET6) + inet_ntop(sa->sa_family, &s.in6->sin6_addr, buf, sizeof(buf)); + else if (s.sa->sa_family == AF_PACKET) + strcpy(buf, ea2str((struct ether_addr *)s.ll->sll_addr)); + else + buf[0] = 0; + + return buf; +} + +static struct ether_addr * +duid2ea(const char *duid) +{ + static struct ether_addr ea; + const char *p = NULL; + size_t len; + + if (!duid) + return NULL; + + for (len = 0; duid[len]; len++) + if (!isxdigit(duid[len])) + return NULL; + +#define hex(x) \ + (((x) <= '9') ? ((x) - '0') : \ + (((x) <= 'F') ? ((x) - 'A' + 10) : \ + ((x) - 'a' + 10))) + + switch (len) { + case 28: + if (!strncmp(duid, "00010001", 8)) + p = duid + 8; + + break; + + case 20: + if (!strncmp(duid, "00030001", 8)) + p = duid + 8; + + break; + + case 12: + p = duid; + break; + } + + if (!p) + return NULL; + + ea.ether_addr_octet[0] = hex(p[0]) * 16 + hex(p[1]); + ea.ether_addr_octet[1] = hex(p[2]) * 16 + hex(p[3]); + ea.ether_addr_octet[2] = hex(p[4]) * 16 + hex(p[5]); + ea.ether_addr_octet[3] = hex(p[6]) * 16 + hex(p[7]); + ea.ether_addr_octet[4] = hex(p[8]) * 16 + hex(p[9]); + ea.ether_addr_octet[5] = hex(p[10]) * 16 + hex(p[11]); + + return &ea; +} + + +static struct { + FILE *dnsmasq_file; + FILE *odhcpd_file; + time_t now; +} lease_state = { }; + +struct lease_entry { + int af; + char buf[512]; + int32_t expire; + struct ether_addr mac; + union { + struct in_addr in; + struct in6_addr in6; + } addr; + char *hostname; + char *duid; +}; + +static char * +find_leasefile(struct uci_context *uci, const char *section) +{ + struct uci_ptr ptr = { .package = "dhcp" }; + struct uci_package *pkg = NULL; + struct uci_section *s; + struct uci_element *e; + + pkg = uci_lookup_package(uci, ptr.package); + + if (!pkg) { + uci_load(uci, ptr.package, &pkg); + + if (!pkg) + return NULL; + } + + uci_foreach_element(&pkg->sections, e) { + s = uci_to_section(e); + + if (strcmp(s->type, section)) + continue; + + ptr.flags = 0; + + ptr.section = s->e.name; + ptr.s = NULL; + + ptr.option = "leasefile"; + ptr.o = NULL; + + if (uci_lookup_ptr(uci, &ptr, NULL, true)) + continue; + + if (ptr.o->type != UCI_TYPE_STRING) + continue; + + return ptr.o->v.string; + } + + return NULL; +} + +static void +lease_close(void) +{ + if (lease_state.dnsmasq_file) { + fclose(lease_state.dnsmasq_file); + lease_state.dnsmasq_file = NULL; + } + + if (lease_state.odhcpd_file) { + fclose(lease_state.odhcpd_file); + lease_state.odhcpd_file = NULL; + } +} + +static void +lease_open(void) +{ + struct uci_context *uci; + char *p; + + lease_close(); + + uci = uci_alloc_context(); + + if (!uci) + return; + + lease_state.now = time(NULL); + + p = find_leasefile(uci, "dnsmasq"); + lease_state.dnsmasq_file = fopen(p ? p : "/tmp/dhcp.leases", "r"); + + p = find_leasefile(uci, "odhcpd"); + lease_state.odhcpd_file = fopen(p ? p : "/tmp/hosts/odhcpd", "r"); + + uci_free_context(uci); +} + +static struct lease_entry * +lease_next(void) +{ + static struct lease_entry e; + struct ether_addr *ea; + char *p; + + memset(&e, 0, sizeof(e)); + + if (lease_state.dnsmasq_file) { + while (fgets(e.buf, sizeof(e.buf), lease_state.dnsmasq_file)) { + p = strtok(e.buf, " \t\n"); + + if (!p) + continue; + + e.expire = strtol(p, NULL, 10); + e.expire = (e.expire >= 0) ? e.expire - lease_state.now : 0; + + p = strtok(NULL, " \t\n"); + + if (!p) + continue; + + ea = ether_aton(p); + + if (!ea) + continue; + + p = strtok(NULL, " \t\n"); + + if (p && inet_pton(AF_INET6, p, &e.addr.in6)) + e.af = AF_INET6; + else if (p && inet_pton(AF_INET, p, &e.addr.in)) + e.af = AF_INET; + else + continue; + + e.hostname = strtok(NULL, " \t\n"); + e.duid = strtok(NULL, " \t\n"); + + if (!e.hostname || !e.duid) + continue; + + if (!strcmp(e.hostname, "*")) + e.hostname = NULL; + + if (!strcmp(e.duid, "*")) + e.duid = NULL; + + e.mac = *ea; + + return &e; + } + + fclose(lease_state.dnsmasq_file); + lease_state.dnsmasq_file = NULL; + } + + if (lease_state.odhcpd_file) { + while (fgets(e.buf, sizeof(e.buf), lease_state.odhcpd_file)) { + strtok(e.buf, " \t\n"); /* # */ + strtok(NULL, " \t\n"); /* iface */ + + e.duid = strtok(NULL, " \t\n"); /* duid */ + + if (!e.duid) + continue; + + p = strtok(NULL, " \t\n"); /* iaid */ + + if (p) + e.af = strcmp(p, "ipv4") ? AF_INET6 : AF_INET; + else + continue; + + e.hostname = strtok(NULL, " \t\n"); /* name */ + + if (!e.hostname) + continue; + + p = strtok(NULL, " \t\n"); /* ts */ + + if (!p) + continue; + + e.expire = strtol(p, NULL, 10); + e.expire = (e.expire > 0) ? e.expire - lease_state.now : e.expire; + + strtok(NULL, " \t\n"); /* id */ + strtok(NULL, " \t\n"); /* length */ + + p = strtok(NULL, "/ \t\n"); /* ip */ + + if (!p || !inet_pton(e.af, p, &e.addr.in6)) + continue; + + ea = duid2ea(e.duid); + + if (ea) + e.mac = *ea; + + if (!strcmp(e.hostname, "-")) + e.hostname = NULL; + + if (!strcmp(e.duid, "-")) + e.duid = NULL; + + return &e; + } + + fclose(lease_state.odhcpd_file); + lease_state.odhcpd_file = NULL; + } + + return NULL; +} + + +static void +rpc_luci_parse_network_device_sys(const char *name, struct ifaddrs *ifaddr) +{ + char link[64], buf[512], *p; + unsigned int ifa_flags = 0; + struct sockaddr_ll *sll; + struct ifaddrs *ifa; + struct dirent *e; + void *o, *o2, *a; + ssize_t len; + uint64_t v; + int n, af; + DIR *d; + + const char *stats[] = { + "rx_bytes", "tx_bytes", "tx_errors", "rx_errors", "tx_packets", + "rx_packets", "multicast", "collisions", "rx_dropped", "tx_dropped" + }; + + o = blobmsg_open_table(&blob, name); + + blobmsg_add_string(&blob, "name", name); + + snprintf(buf, sizeof(buf), "/sys/class/net/%s/brif", name); + + d = opendir(buf); + + if (d) { + blobmsg_add_u8(&blob, "bridge", 1); + + a = blobmsg_open_array(&blob, "ports"); + + while (true) { + e = readdir(d); + + if (e == NULL) + break; + + if (strcmp(e->d_name, ".") && strcmp(e->d_name, "..")) + blobmsg_add_string(&blob, NULL, e->d_name); + } + + blobmsg_close_array(&blob, a); + + closedir(d); + + p = readstr("/sys/class/net/%s/bridge/bridge_id", name); + blobmsg_add_string(&blob, "id", p); + + p = readstr("/sys/class/net/%s/bridge/stp_state", name); + blobmsg_add_u8(&blob, "stp", strcmp(p, "0") ? 1 : 0); + } + + snprintf(buf, sizeof(buf), "/sys/class/net/%s/master", name); + len = readlink(buf, link, sizeof(link) - 1); + + if (len > 0) { + link[len] = 0; + blobmsg_add_string(&blob, "master", basename(link)); + } + + p = readstr("/sys/class/net/%s/phy80211/index", name); + blobmsg_add_u8(&blob, "wireless", *p ? 1 : 0); + + p = readstr("/sys/class/net/%s/operstate", name); + blobmsg_add_u8(&blob, "up", !strcmp(p, "up") || !strcmp(p, "unknown")); + + n = atoi(readstr("/sys/class/net/%s/mtu", name)); + if (n > 0) + blobmsg_add_u32(&blob, "mtu", n); + + n = atoi(readstr("/sys/class/net/%s/tx_queue_len", name)); + if (n > 0) + blobmsg_add_u32(&blob, "qlen", n); + + p = readstr("/sys/class/net/%s/master", name); + if (*p) + blobmsg_add_string(&blob, "master", p); + + for (af = AF_INET; af != 0; af = (af == AF_INET) ? AF_INET6 : 0) { + a = blobmsg_open_array(&blob, + (af == AF_INET) ? "ipaddrs" : "ip6addrs"); + + for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) { + if (ifa->ifa_addr == NULL || ifa->ifa_addr->sa_family != af) + continue; + + if (strcmp(ifa->ifa_name, name)) + continue; + + o2 = blobmsg_open_table(&blob, NULL); + + blobmsg_add_string(&blob, "address", + sa2str(ifa->ifa_addr)); + + blobmsg_add_string(&blob, "netmask", + sa2str(ifa->ifa_netmask)); + + if (ifa->ifa_dstaddr && (ifa->ifa_flags & IFF_POINTOPOINT)) + blobmsg_add_string(&blob, "remote", + sa2str(ifa->ifa_dstaddr)); + else if (ifa->ifa_broadaddr && (ifa->ifa_flags & IFF_BROADCAST)) + blobmsg_add_string(&blob, "broadcast", + sa2str(ifa->ifa_broadaddr)); + + blobmsg_close_table(&blob, o2); + + ifa_flags |= ifa->ifa_flags; + } + + blobmsg_close_array(&blob, a); + } + + for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) { + if (ifa->ifa_addr == NULL || ifa->ifa_addr->sa_family != AF_PACKET) + continue; + + if (strcmp(ifa->ifa_name, name)) + continue; + + sll = (struct sockaddr_ll *)ifa->ifa_addr; + + if (sll->sll_hatype == 1) + blobmsg_add_string(&blob, "mac", sa2str(ifa->ifa_addr)); + + blobmsg_add_u32(&blob, "type", sll->sll_hatype); + blobmsg_add_u32(&blob, "ifindex", sll->sll_ifindex); + + ifa_flags |= ifa->ifa_flags; + break; + } + + o2 = blobmsg_open_table(&blob, "stats"); + + for (n = 0; n < ARRAY_SIZE(stats); n++) { + v = strtoull(readstr("/sys/class/net/%s/statistics/%s", + name, stats[n]), NULL, 10); + + blobmsg_add_u64(&blob, stats[n], v); + } + + blobmsg_close_table(&blob, o2); + + o2 = blobmsg_open_table(&blob, "flags"); + blobmsg_add_u8(&blob, "up", ifa_flags & IFF_UP); + blobmsg_add_u8(&blob, "broadcast", ifa_flags & IFF_BROADCAST); + blobmsg_add_u8(&blob, "promisc", ifa_flags & IFF_PROMISC); + blobmsg_add_u8(&blob, "loopback", ifa_flags & IFF_LOOPBACK); + blobmsg_add_u8(&blob, "noarp", ifa_flags & IFF_NOARP); + blobmsg_add_u8(&blob, "multicast", ifa_flags & IFF_MULTICAST); + blobmsg_add_u8(&blob, "pointtopoint", ifa_flags & IFF_POINTOPOINT); + blobmsg_close_table(&blob, o2); + + blobmsg_close_table(&blob, o); +} + +static int +rpc_luci_get_network_devices(struct ubus_context *ctx, + struct ubus_object *obj, + struct ubus_request_data *req, + const char *method, + struct blob_attr *msg) +{ + struct ifaddrs *ifaddr; + struct dirent *e; + DIR *d; + + blob_buf_init(&blob, 0); + + d = opendir("/sys/class/net"); + + if (d != NULL) { + if (getifaddrs(&ifaddr) == 1) + ifaddr = NULL; + + while (true) { + e = readdir(d); + + if (e == NULL) + break; + + if (strcmp(e->d_name, ".") && strcmp(e->d_name, "..")) + rpc_luci_parse_network_device_sys(e->d_name, ifaddr); + } + + if (ifaddr != NULL) + freeifaddrs(ifaddr); + + closedir(d); + } + + ubus_send_reply(ctx, req, blob.head); + return 0; +} + + +static void +iw_call_str(int (*method)(const char *, char *), const char *dev, + struct blob_buf *blob, const char *field) +{ + char buf[IWINFO_BUFSIZE] = {}; + + if (method(dev, buf) == 0) + blobmsg_add_string(blob, field, buf); +} + +static void +iw_call_num(int (*method)(const char *, int *), const char *dev, + struct blob_buf *blob, const char *field) +{ + int val = 0; + + if (method(dev, &val) == 0) + blobmsg_add_u32(blob, field, val); +} + +static bool rpc_luci_get_iwinfo(struct blob_buf *buf, const char *devname, + bool phy_only) +{ + struct iwinfo_crypto_entry crypto = {}; + struct iwinfo_hardware_id ids = {}; + const struct iwinfo_ops *iw; + void *iwlib, *o, *o2, *a; + int nret; + + if (!iw_backend || !iw_close || !iw_modenames) { + iwlib = dlopen("libiwinfo.so", RTLD_LOCAL); + + if (!iwlib) + return false; + + iw_backend = dlsym(iwlib, "iwinfo_backend"); + iw_close = dlsym(iwlib, "iwinfo_close"); + iw_modenames = dlsym(iwlib, "IWINFO_OPMODE_NAMES"); + + if (!iw_backend || !iw_close || !iw_modenames) + return false; + } + + iw = iw_backend(devname); + + if (!iw) + return false; + + o = blobmsg_open_table(buf, "iwinfo"); + + iw_call_num(iw->signal, devname, buf, "signal"); + iw_call_num(iw->noise, devname, buf, "noise"); + iw_call_num(iw->channel, devname, buf, "channel"); + iw_call_str(iw->country, devname, buf, "country"); + iw_call_str(iw->phyname, devname, buf, "phy"); + iw_call_num(iw->txpower, devname, buf, "txpower"); + iw_call_num(iw->txpower_offset, devname, buf, "txpower_offset"); + iw_call_num(iw->frequency, devname, buf, "frequency"); + iw_call_num(iw->frequency_offset, devname, buf, "frequency_offset"); + + if (!iw->hwmodelist(devname, &nret)) { + a = blobmsg_open_array(buf, "hwmodes"); + + if (nret & IWINFO_80211_AC) + blobmsg_add_string(buf, NULL, "ac"); + + if (nret & IWINFO_80211_A) + blobmsg_add_string(buf, NULL, "a"); + + if (nret & IWINFO_80211_B) + blobmsg_add_string(buf, NULL, "b"); + + if (nret & IWINFO_80211_G) + blobmsg_add_string(buf, NULL, "g"); + + if (nret & IWINFO_80211_N) + blobmsg_add_string(buf, NULL, "n"); + + blobmsg_close_array(buf, a); + } + + if (!iw->htmodelist(devname, &nret)) { + a = blobmsg_open_array(buf, "htmodes"); + + if (nret & IWINFO_HTMODE_HT20) + blobmsg_add_string(buf, NULL, "HT20"); + + if (nret & IWINFO_HTMODE_HT40) + blobmsg_add_string(buf, NULL, "HT40"); + + if (nret & IWINFO_HTMODE_VHT20) + blobmsg_add_string(buf, NULL, "VHT20"); + + if (nret & IWINFO_HTMODE_VHT40) + blobmsg_add_string(buf, NULL, "VHT40"); + + if (nret & IWINFO_HTMODE_VHT80) + blobmsg_add_string(buf, NULL, "VHT80"); + + if (nret & IWINFO_HTMODE_VHT80_80) + blobmsg_add_string(buf, NULL, "VHT80+80"); + + if (nret & IWINFO_HTMODE_VHT160) + blobmsg_add_string(buf, NULL, "VHT160"); + + blobmsg_close_array(buf, a); + } + + if (!iw->hardware_id(devname, (char *)&ids)) { + o2 = blobmsg_open_table(buf, "hardware"); + + a = blobmsg_open_array(buf, "id"); + blobmsg_add_u32(buf, NULL, ids.vendor_id); + blobmsg_add_u32(buf, NULL, ids.device_id); + blobmsg_add_u32(buf, NULL, ids.subsystem_vendor_id); + blobmsg_add_u32(buf, NULL, ids.subsystem_device_id); + blobmsg_close_array(buf, a); + + iw_call_str(iw->hardware_name, devname, buf, "name"); + + blobmsg_close_table(buf, o2); + } + + if (!phy_only) { + iw_call_num(iw->quality, devname, buf, "quality"); + iw_call_num(iw->quality_max, devname, buf, "quality_max"); + iw_call_num(iw->bitrate, devname, buf, "bitrate"); + + if (!iw->mode(devname, &nret)) + blobmsg_add_string(buf, "mode", iw_modenames[nret]); + + iw_call_str(iw->ssid, devname, buf, "ssid"); + iw_call_str(iw->bssid, devname, buf, "bssid"); + + if (!iw->encryption(devname, (char *)&crypto)) { + o2 = blobmsg_open_table(buf, "encryption"); + + blobmsg_add_u8(buf, "enabled", crypto.enabled); + + if (crypto.enabled) { + if (!crypto.wpa_version) { + a = blobmsg_open_array(buf, "wep"); + + if (crypto.auth_algs & IWINFO_AUTH_OPEN) + blobmsg_add_string(buf, NULL, "open"); + + if (crypto.auth_algs & IWINFO_AUTH_SHARED) + blobmsg_add_string(buf, NULL, "shared"); + + blobmsg_close_array(buf, a); + } + else { + a = blobmsg_open_array(buf, "wpa"); + + for (nret = 1; nret <= 3; nret++) + if (crypto.wpa_version & (1 << (nret - 1))) + blobmsg_add_u32(buf, NULL, nret); + + blobmsg_close_array(buf, a); + + a = blobmsg_open_array(buf, "authentication"); + + if (crypto.auth_suites & IWINFO_KMGMT_PSK) + blobmsg_add_string(buf, NULL, "psk"); + + if (crypto.auth_suites & IWINFO_KMGMT_8021x) + blobmsg_add_string(buf, NULL, "802.1x"); + + if (crypto.auth_suites & IWINFO_KMGMT_SAE) + blobmsg_add_string(buf, NULL, "sae"); + + if (crypto.auth_suites & IWINFO_KMGMT_OWE) + blobmsg_add_string(buf, NULL, "owe"); + + if (!crypto.auth_suites || + (crypto.auth_suites & IWINFO_KMGMT_NONE)) + blobmsg_add_string(buf, NULL, "none"); + + blobmsg_close_array(buf, a); + } + + a = blobmsg_open_array(buf, "ciphers"); + nret = crypto.pair_ciphers | crypto.group_ciphers; + + if (nret & IWINFO_CIPHER_WEP40) + blobmsg_add_string(buf, NULL, "wep-40"); + + if (nret & IWINFO_CIPHER_WEP104) + blobmsg_add_string(buf, NULL, "wep-104"); + + if (nret & IWINFO_CIPHER_TKIP) + blobmsg_add_string(buf, NULL, "tkip"); + + if (nret & IWINFO_CIPHER_CCMP) + blobmsg_add_string(buf, NULL, "ccmp"); + + if (nret & IWINFO_CIPHER_WRAP) + blobmsg_add_string(buf, NULL, "wrap"); + + if (nret & IWINFO_CIPHER_AESOCB) + blobmsg_add_string(buf, NULL, "aes-ocb"); + + if (nret & IWINFO_CIPHER_CKIP) + blobmsg_add_string(buf, NULL, "ckip"); + + if (!nret || (nret & IWINFO_CIPHER_NONE)) + blobmsg_add_string(buf, NULL, "none"); + + blobmsg_close_array(buf, a); + } + + blobmsg_close_table(buf, o2); + } + } + + blobmsg_close_table(buf, o); + + iw_close(); + + return true; +} + +static void rpc_luci_get_wireless_devices_cb(struct ubus_request *req, + int type, struct blob_attr *msg) +{ + struct blob_attr *wifi, *cur, *iface, *cur2; + struct reply_context *rctx = req->priv; + const char *name, *first_ifname; + int rem, rem2, rem3, rem4; + void *o, *a, *o2; + + blob_for_each_attr(wifi, msg, rem) { + if (blobmsg_type(wifi) != BLOBMSG_TYPE_TABLE || + blobmsg_name(wifi) == NULL) + continue; + + o = blobmsg_open_table(&rctx->blob, blobmsg_name(wifi)); + + rem2 = blobmsg_data_len(wifi); + first_ifname = NULL; + + __blob_for_each_attr(cur, blobmsg_data(wifi), rem2) { + name = blobmsg_name(cur); + + if (!name || !strcmp(name, "iwinfo")) { + continue; + } + else if (!strcmp(name, "interfaces")) { + if (blobmsg_type(cur) != BLOBMSG_TYPE_ARRAY) + continue; + + a = blobmsg_open_array(&rctx->blob, "interfaces"); + + rem3 = blobmsg_data_len(cur); + + __blob_for_each_attr(iface, blobmsg_data(cur), rem3) { + if (blobmsg_type(iface) != BLOBMSG_TYPE_TABLE) + continue; + + o2 = blobmsg_open_table(&rctx->blob, NULL); + + rem4 = blobmsg_data_len(iface); + name = NULL; + + __blob_for_each_attr(cur2, blobmsg_data(iface), rem4) { + if (!strcmp(blobmsg_name(cur2), "ifname")) + name = blobmsg_get_string(cur2); + else if (!strcmp(blobmsg_name(cur2), "iwinfo")) + continue; + + blobmsg_add_blob(&rctx->blob, cur2); + } + + if (name) + if (rpc_luci_get_iwinfo(&rctx->blob, name, false)) + first_ifname = first_ifname ? first_ifname : name; + + blobmsg_close_table(&rctx->blob, o2); + } + + blobmsg_close_array(&rctx->blob, a); + } + else { + blobmsg_add_blob(&rctx->blob, cur); + } + } + + rpc_luci_get_iwinfo(&rctx->blob, + first_ifname ? first_ifname : blobmsg_name(wifi), + true); + + blobmsg_close_table(&rctx->blob, o); + } + + finish_request(rctx, UBUS_STATUS_OK); +} + +static int +rpc_luci_get_wireless_devices(struct ubus_context *ctx, + struct ubus_object *obj, + struct ubus_request_data *req, + const char *method, + struct blob_attr *msg) +{ + struct reply_context *rctx = defer_request(ctx, req); + + if (!rctx) + return UBUS_STATUS_UNKNOWN_ERROR; + + if (!invoke_ubus(ctx, "network.wireless", "status", NULL, + rpc_luci_get_wireless_devices_cb, rctx)) + return finish_request(rctx, UBUS_STATUS_NOT_FOUND); + + return UBUS_STATUS_OK; +} + +struct host_hint { + struct avl_node avl; + char *hostname; + struct in_addr ip; + struct in6_addr ip6; +}; + +static int +nl_cb_done(struct nl_msg *msg, void *arg) +{ + struct reply_context *rctx = arg; + rctx->pending = 0; + return NL_STOP; +} + +static int +nl_cb_error(struct sockaddr_nl *nla, struct nlmsgerr *err, void *arg) +{ + struct reply_context *rctx = arg; + rctx->pending = 0; + return NL_STOP; +} + +static struct host_hint * +rpc_luci_get_host_hint(struct reply_context *rctx, struct ether_addr *ea) +{ + struct host_hint *hint; + char *p, *mac; + + if (!ea) + return NULL; + + mac = ea2str(ea); + hint = avl_find_element(&rctx->avl, mac, hint, avl); + + if (!hint) { + hint = calloc_a(sizeof(*hint), &p, strlen(mac) + 1); + + if (!hint) + return NULL; + + hint->avl.key = strcpy(p, mac); + avl_insert(&rctx->avl, &hint->avl); + } + + return hint; +} + +static int nl_cb_dump_neigh(struct nl_msg *msg, void *arg) +{ + struct reply_context *rctx = arg; + struct ether_addr *mac; + struct in6_addr *dst; + struct nlmsghdr *hdr = nlmsg_hdr(msg); + struct ndmsg *nd = NLMSG_DATA(hdr); + struct nlattr *tb[NDA_MAX+1]; + struct host_hint *hint; + + rctx->pending = !!(hdr->nlmsg_flags & NLM_F_MULTI); + + if (hdr->nlmsg_type != RTM_NEWNEIGH || + (nd->ndm_family != AF_INET && nd->ndm_family != AF_INET6)) + return NL_SKIP; + + if (!(nd->ndm_state & (0xFF & ~NUD_NOARP))) + return NL_SKIP; + + nlmsg_parse(hdr, sizeof(*nd), tb, NDA_MAX, NULL); + + mac = tb[NDA_LLADDR] ? RTA_DATA(tb[NDA_LLADDR]) : NULL; + dst = tb[NDA_DST] ? RTA_DATA(tb[NDA_DST]) : NULL; + + if (!mac || !dst) + return NL_SKIP; + + hint = rpc_luci_get_host_hint(rctx, mac); + + if (!hint) + return NL_SKIP; + + if (nd->ndm_family == AF_INET) + hint->ip = *(struct in_addr *)dst; + else + hint->ip6 = *(struct in6_addr *)dst; + + return NL_SKIP; +} + +static void +rpc_luci_get_host_hints_nl(struct reply_context *rctx) +{ + struct nl_sock *sock = NULL; + struct nl_msg *msg = NULL; + struct nl_cb *cb = NULL; + struct ndmsg ndm = {}; + + sock = nl_socket_alloc(); + + if (!sock) + goto out; + + if (nl_connect(sock, NETLINK_ROUTE)) + goto out; + + cb = nl_cb_alloc(NL_CB_DEFAULT); + + if (!cb) + goto out; + + msg = nlmsg_alloc_simple(RTM_GETNEIGH, NLM_F_REQUEST | NLM_F_DUMP); + + if (!msg) + goto out; + + nlmsg_append(msg, &ndm, sizeof(ndm), 0); + + nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, nl_cb_dump_neigh, rctx); + nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, nl_cb_done, rctx); + nl_cb_err(cb, NL_CB_CUSTOM, nl_cb_error, rctx); + + avl_init(&rctx->avl, avl_strcmp, false, NULL); + + rctx->pending = 1; + + nl_send_auto_complete(sock, msg); + + while (rctx->pending) + nl_recvmsgs(sock, cb); + +out: + if (sock) + nl_socket_free(sock); + + if (cb) + nl_cb_put(cb); + + if (msg) + nlmsg_free(msg); +} + +static void +rpc_luci_get_host_hints_ether(struct reply_context *rctx) +{ + struct host_hint *hint; + struct in_addr in; + char buf[512], *p; + FILE *f; + + f = fopen("/etc/ethers", "r"); + + if (!f) + return; + + while (fgets(buf, sizeof(buf), f)) { + p = strtok(buf, " \t\n"); + hint = rpc_luci_get_host_hint(rctx, p ? ether_aton(p) : NULL); + + if (!hint) + continue; + + p = strtok(NULL, " \t\n"); + + if (!p) + continue; + + if (inet_pton(AF_INET, p, &in) == 1) { + if (hint->ip.s_addr == 0) + hint->ip = in; + } + else if (*p && !hint->hostname) { + hint->hostname = strdup(p); + } + } + + fclose(f); +} + +static void +rpc_luci_get_host_hints_uci(struct reply_context *rctx) +{ + struct uci_ptr ptr = { .package = "dhcp" }; + struct uci_context *uci = NULL; + struct uci_package *pkg = NULL; + struct in6_addr empty = {}; + struct lease_entry *lease; + struct host_hint *hint; + struct uci_element *e, *l; + struct uci_section *s; + struct in_addr in; + char *p, *n; + + uci = uci_alloc_context(); + + if (!uci) + goto out; + + uci_load(uci, ptr.package, &pkg); + + if (!pkg) + goto out; + + uci_foreach_element(&pkg->sections, e) + { + s = uci_to_section(e); + + if (strcmp(s->type, "host")) + continue; + + ptr.section = s->e.name; + ptr.s = NULL; + + ptr.option = "ip"; + ptr.o = NULL; + + if (uci_lookup_ptr(uci, &ptr, NULL, true)) + continue; + + if (ptr.o->type != UCI_TYPE_STRING) + continue; + + if (inet_pton(AF_INET, ptr.o->v.string, &in) != 1) + continue; + + ptr.option = "name"; + ptr.o = NULL; + + if (!uci_lookup_ptr(uci, &ptr, NULL, true) && + ptr.o->type == UCI_TYPE_STRING) + n = ptr.o->v.string; + else + n = NULL; + + ptr.option = "mac"; + ptr.o = NULL; + + if (uci_lookup_ptr(uci, &ptr, NULL, true)) + continue; + + if (ptr.o->type == UCI_TYPE_STRING) { + for (p = strtok(ptr.o->v.string, " \t"); + p != NULL; + p = strtok(NULL, " \t")) { + hint = rpc_luci_get_host_hint(rctx, ether_aton(p)); + + if (!hint) + continue; + + if (hint->ip.s_addr == 0) + hint->ip = in; + + if (n && !hint->hostname) + hint->hostname = strdup(n); + } + } + else if (ptr.o->type == UCI_TYPE_LIST) { + uci_foreach_element(&ptr.o->v.list, l) { + hint = rpc_luci_get_host_hint(rctx, ether_aton(l->name)); + + if (!hint) + continue; + + if (hint->ip.s_addr == 0) + hint->ip = in; + + if (n && !hint->hostname) + hint->hostname = strdup(n); + } + } + } + + lease_open(); + + while ((lease = lease_next()) != NULL) { + hint = rpc_luci_get_host_hint(rctx, &lease->mac); + + if (!hint) + continue; + + if (lease->af == AF_INET && hint->ip.s_addr == 0) + hint->ip = lease->addr.in; + else if (lease->af == AF_INET6 && + !memcmp(&hint->ip6, &empty, sizeof(empty))) + hint->ip6 = lease->addr.in6; + + if (lease->hostname && !hint->hostname) + hint->hostname = strdup(lease->hostname); + } + + lease_close(); + +out: + if (uci) + uci_free_context(uci); +} + +static void +rpc_luci_get_host_hints_ifaddrs(struct reply_context *rctx) +{ + struct ether_addr empty_ea = {}; + struct in6_addr empty_in6 = {}; + struct ifaddrs *ifaddr, *ifa; + struct sockaddr_ll *sll; + struct avl_tree devices; + struct host_hint *hint; + struct { + struct avl_node avl; + struct ether_addr ea; + struct in6_addr in6; + struct in_addr in; + } *device, *nextdevice; + char *p; + + avl_init(&devices, avl_strcmp, false, NULL); + + if (getifaddrs(&ifaddr) == -1) + return; + + for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) { + if (!ifa->ifa_addr) + continue; + + device = avl_find_element(&devices, ifa->ifa_name, device, avl); + + if (!device) { + device = calloc_a(sizeof(*device), &p, strlen(ifa->ifa_name) + 1); + + if (!device) + continue; + + device->avl.key = strcpy(p, ifa->ifa_name); + avl_insert(&devices, &device->avl); + } + + switch (ifa->ifa_addr->sa_family) { + case AF_PACKET: + sll = (struct sockaddr_ll *)ifa->ifa_addr; + + if (sll->sll_halen == 6) + memcpy(&device->ea, sll->sll_addr, 6); + + break; + + case AF_INET6: + device->in6 = ((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_addr; + break; + + case AF_INET: + device->in = ((struct sockaddr_in *)ifa->ifa_addr)->sin_addr; + break; + } + } + + freeifaddrs(ifaddr); + + avl_for_each_element_safe(&devices, device, avl, nextdevice) { + if (memcmp(&device->ea, &empty_ea, sizeof(empty_ea)) && + (memcmp(&device->in6, &empty_in6, sizeof(empty_in6)) || + device->in.s_addr != 0)) { + hint = rpc_luci_get_host_hint(rctx, &device->ea); + + if (hint) { + if (hint->ip.s_addr == 0 && device->in.s_addr != 0) + hint->ip = device->in; + + if (memcmp(&hint->ip6, &empty_in6, sizeof(empty_in6)) == 0 && + memcmp(&device->in6, &empty_in6, sizeof(empty_in6)) != 0) + hint->ip6 = device->in6; + } + } + + avl_delete(&devices, &device->avl); + free(device); + } +} + +static int +rpc_luci_get_host_hints_finish(struct reply_context *rctx); + +static void +rpc_luci_get_host_hints_rrdns_cb(struct ubus_request *req, int type, + struct blob_attr *msg) +{ + struct reply_context *rctx = req->priv; + struct host_hint *hint; + struct blob_attr *cur; + struct in6_addr in6; + struct in_addr in; + int rem; + + if (msg) { + blob_for_each_attr(cur, msg, rem) { + if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING) + continue; + + if (inet_pton(AF_INET6, blobmsg_name(cur), &in6) == 1) { + avl_for_each_element(&rctx->avl, hint, avl) { + if (!memcmp(&hint->ip6, &in6, sizeof(in6))) { + if (hint->hostname) + free(hint->hostname); + + hint->hostname = strdup(blobmsg_get_string(cur)); + break; + } + } + } + else if (inet_pton(AF_INET, blobmsg_name(cur), &in) == 1) { + avl_for_each_element(&rctx->avl, hint, avl) { + if (!memcmp(&hint->ip, &in, sizeof(in))) { + if (hint->hostname) + free(hint->hostname); + + hint->hostname = strdup(blobmsg_get_string(cur)); + break; + } + } + } + } + } + + rpc_luci_get_host_hints_finish(rctx); +} + +static void +rpc_luci_get_host_hints_rrdns(struct reply_context *rctx) +{ + struct in6_addr empty_in6 = {}; + char buf[INET6_ADDRSTRLEN]; + struct blob_buf req = {}; + struct host_hint *hint; + int n = 0; + void *a; + + blob_buf_init(&req, 0); + + a = blobmsg_open_array(&req, "addrs"); + + avl_for_each_element(&rctx->avl, hint, avl) { + if (hint->ip.s_addr != 0) { + inet_ntop(AF_INET, &hint->ip, buf, sizeof(buf)); + blobmsg_add_string(&req, NULL, buf); + n++; + } + else if (memcmp(&hint->ip6, &empty_in6, sizeof(empty_in6))) { + inet_ntop(AF_INET6, &hint->ip6, buf, sizeof(buf)); + blobmsg_add_string(&req, NULL, buf); + n++; + } + } + + blobmsg_close_array(&req, a); + + if (n > 0) { + blobmsg_add_u32(&req, "timeout", 250); + blobmsg_add_u32(&req, "limit", n); + + if (!invoke_ubus(rctx->context, "network.rrdns", "lookup", &req, + rpc_luci_get_host_hints_rrdns_cb, rctx)) + rpc_luci_get_host_hints_finish(rctx); + } + else { + rpc_luci_get_host_hints_finish(rctx); + } + + blob_buf_free(&req); +} + +static int +rpc_luci_get_host_hints_finish(struct reply_context *rctx) +{ + struct host_hint *hint, *nexthint; + char buf[INET6_ADDRSTRLEN]; + struct in6_addr in6 = {}; + struct in_addr in = {}; + void *o; + + avl_for_each_element_safe(&rctx->avl, hint, avl, nexthint) { + o = blobmsg_open_table(&rctx->blob, hint->avl.key); + + if (memcmp(&hint->ip, &in, sizeof(in))) { + inet_ntop(AF_INET, &hint->ip, buf, sizeof(buf)); + blobmsg_add_string(&rctx->blob, "ipv4", buf); + } + + if (memcmp(&hint->ip6, &in6, sizeof(in6))) { + inet_ntop(AF_INET6, &hint->ip6, buf, sizeof(buf)); + blobmsg_add_string(&rctx->blob, "ipv6", buf); + } + + if (hint->hostname) + blobmsg_add_string(&rctx->blob, "name", hint->hostname); + + blobmsg_close_table(&rctx->blob, o); + + avl_delete(&rctx->avl, &hint->avl); + + if (hint->hostname) + free(hint->hostname); + + free(hint); + } + + return finish_request(rctx, UBUS_STATUS_OK); +} + +static int +rpc_luci_get_host_hints(struct ubus_context *ctx, struct ubus_object *obj, + struct ubus_request_data *req, const char *method, + struct blob_attr *msg) +{ + struct reply_context *rctx = defer_request(ctx, req); + + if (!rctx) + return UBUS_STATUS_UNKNOWN_ERROR; + + rpc_luci_get_host_hints_nl(rctx); + rpc_luci_get_host_hints_uci(rctx); + rpc_luci_get_host_hints_ether(rctx); + rpc_luci_get_host_hints_ifaddrs(rctx); + rpc_luci_get_host_hints_rrdns(rctx); + + return UBUS_STATUS_OK; +} + +static int +rpc_luci_get_board_json(struct ubus_context *ctx, struct ubus_object *obj, + struct ubus_request_data *req, const char *method, + struct blob_attr *msg) +{ + blob_buf_init(&blob, 0); + + if (!blobmsg_add_json_from_file(&blob, "/etc/board.json")) + return UBUS_STATUS_UNKNOWN_ERROR; + + ubus_send_reply(ctx, req, blob.head); + return UBUS_STATUS_OK; +} + +static int +rpc_luci_get_dsl_status(struct ubus_context *ctx, struct ubus_object *obj, + struct ubus_request_data *req, const char *method, + struct blob_attr *msg) +{ + char line[128], *p, *s; + FILE *cmd; + + cmd = popen("/etc/init.d/dsl_control lucistat", "r"); + + if (!cmd) + return UBUS_STATUS_NOT_FOUND; + + blob_buf_init(&blob, 0); + + while (fgets(line, sizeof(line), cmd)) { + if (strncmp(line, "dsl.", 4)) + continue; + + p = strchr(line, '='); + + if (!p) + continue; + + s = p + strlen(p) - 1; + + while (s >= p && isspace(*s)) + *s-- = 0; + + *p++ = 0; + + if (!strcmp(p, "nil")) + continue; + + if (isdigit(*p)) { + blobmsg_add_u32(&blob, line + 4, strtoul(p, NULL, 0)); + } + else if (*p == '"') { + s = p + strlen(p) - 1; + + if (s >= p && *s == '"') + *s = 0; + + blobmsg_add_string(&blob, line + 4, p + 1); + } + } + + fclose(cmd); + + ubus_send_reply(ctx, req, blob.head); + return UBUS_STATUS_OK; +} + + +enum { + RPC_L_FAMILY, + __RPC_L_MAX, +}; + +static const struct blobmsg_policy rpc_get_leases_policy[__RPC_L_MAX] = { + [RPC_L_FAMILY] = { .name = "family", .type = BLOBMSG_TYPE_INT32 } +}; + +static int +rpc_luci_get_dhcp_leases(struct ubus_context *ctx, struct ubus_object *obj, + struct ubus_request_data *req, const char *method, + struct blob_attr *msg) +{ + struct blob_attr *tb[__RPC_L_MAX]; + struct ether_addr emptymac = {}; + struct lease_entry *lease; + char s[INET6_ADDRSTRLEN]; + struct uci_context *uci; + int af, family = 0; + void *a, *o; + + blobmsg_parse(rpc_get_leases_policy, __RPC_L_MAX, tb, + blob_data(msg), blob_len(msg)); + + switch (tb[RPC_L_FAMILY] ? blobmsg_get_u32(tb[RPC_L_FAMILY]) : 0) { + case 0: + family = 0; + break; + + case 4: + family = AF_INET; + break; + + case 6: + family = AF_INET6; + break; + + default: + return UBUS_STATUS_INVALID_ARGUMENT; + } + + uci = uci_alloc_context(); + + if (!uci) + return UBUS_STATUS_UNKNOWN_ERROR; + + blob_buf_init(&blob, 0); + + for (af = family ? family : AF_INET; + af != 0; + af = (family == 0) ? (af == AF_INET ? AF_INET6 : 0) : 0) { + + a = blobmsg_open_array(&blob, (af == AF_INET) ? "dhcp_leases" + : "dhcp6_leases"); + + lease_open(); + + while ((lease = lease_next()) != NULL) { + if (lease->af != af) + continue; + + o = blobmsg_open_table(&blob, NULL); + + if (lease->expire == -1) + blobmsg_add_u8(&blob, "expires", 0); + else + blobmsg_add_u32(&blob, "expires", lease->expire); + + if (lease->hostname) + blobmsg_add_string(&blob, "hostname", lease->hostname); + + if (memcmp(&lease->mac, &emptymac, sizeof(emptymac))) + blobmsg_add_string(&blob, "macaddr", ea2str(&lease->mac)); + + if (lease->duid) + blobmsg_add_string(&blob, "duid", lease->duid); + + inet_ntop(lease->af, &lease->addr.in6, s, sizeof(s)); + blobmsg_add_string(&blob, (af == AF_INET) ? "ipaddr" : "ip6addr", + s); + + blobmsg_close_table(&blob, o); + } + + lease_close(); + + blobmsg_close_array(&blob, a); + } + + uci_free_context(uci); + ubus_send_reply(ctx, req, blob.head); + + return UBUS_STATUS_OK; +} + +static int +rpc_luci_api_init(const struct rpc_daemon_ops *o, struct ubus_context *ctx) +{ + static const struct ubus_method luci_methods[] = { + UBUS_METHOD_NOARG("getNetworkDevices", rpc_luci_get_network_devices), + UBUS_METHOD_NOARG("getWirelessDevices", rpc_luci_get_wireless_devices), + UBUS_METHOD_NOARG("getHostHints", rpc_luci_get_host_hints), + UBUS_METHOD_NOARG("getBoardJSON", rpc_luci_get_board_json), + UBUS_METHOD_NOARG("getDSLStatus", rpc_luci_get_dsl_status), + UBUS_METHOD("getDHCPLeases", rpc_luci_get_dhcp_leases, rpc_get_leases_policy) + }; + + static struct ubus_object_type luci_type = + UBUS_OBJECT_TYPE("rpcd-luci", luci_methods); + + static struct ubus_object obj = { + .name = "luci-rpc", + .type = &luci_type, + .methods = luci_methods, + .n_methods = ARRAY_SIZE(luci_methods), + }; + + return ubus_add_object(ctx, &obj); +} + +struct rpc_plugin rpc_plugin = { + .init = rpc_luci_api_init +};