Rework LuCI build system

 * Rename subdirectories to their repective OpenWrt package names
 * Make each LuCI module its own standalone package
 * Deploy a shared luci.mk which is used by each module Makefile

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

1 files changed, 565 insertions, 0 deletions

diff --git a/libs/luci-lib-nixio/src/address.c b/libs/luci-lib-nixio/src/address.c
new file mode 100644
index 000000000..4fd557d6a
--- /dev/null
+++ b/libs/luci-lib-nixio/src/address.c
@@ -0,0 +1,565 @@
+/*
+ * nixio - Linux I/O library for lua
+ *
+ *   Copyright (C) 2009 Steven Barth <steven@midlink.org>
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#include "nixio.h"
+#include <sys/types.h>
+#include <sys/param.h>
+#include <errno.h>
+#include <string.h>
+
+#ifdef __linux__
+
+#include <signal.h>
+#include <setjmp.h>
+#include <unistd.h>
+
+/* setjmp() / longjmp() stuff */
+static jmp_buf nixio__jump_alarm;
+static void nixio__handle_alarm(int sig) { longjmp(nixio__jump_alarm, 1); }
+
+#include <linux/netdevice.h>
+
+/* struct net_device_stats is buggy on amd64, redefine it */
+struct nixio__nds {
+     uint32_t rx_packets;
+     uint32_t tx_packets;
+     uint32_t rx_bytes;
+     uint32_t tx_bytes;
+     uint32_t rx_errors;
+     uint32_t tx_errors;
+     uint32_t rx_dropped;
+     uint32_t tx_dropped;
+     uint32_t multicast;
+     uint32_t collisions;
+
+     uint32_t rx_length_errors;
+     uint32_t rx_over_errors;
+     uint32_t rx_crc_errors;
+     uint32_t rx_frame_errors;
+     uint32_t rx_fifo_errors;
+     uint32_t rx_missed_errors;
+
+     uint32_t tx_aborted_errors;
+     uint32_t tx_carrier_errors;
+     uint32_t tx_fifo_errors;
+     uint32_t tx_heartbeat_errors;
+     uint32_t tx_window_errors;
+
+     uint32_t rx_compressed;
+     uint32_t tx_compressed;
+};
+#endif
+
+#ifndef NI_MAXHOST
+#define NI_MAXHOST 1025
+#endif
+
+/**
+ * address pushing helper
+ */
+int nixio__addr_parse(nixio_addr *addr, struct sockaddr *saddr) {
+	void *baddr;
+
+	addr->family = saddr->sa_family;
+	if (saddr->sa_family == AF_INET) {
+		struct sockaddr_in *inetaddr = (struct sockaddr_in*)saddr;
+		addr->port = ntohs(inetaddr->sin_port);
+		baddr = &inetaddr->sin_addr;
+	} else if (saddr->sa_family == AF_INET6) {
+		struct sockaddr_in6 *inet6addr = (struct sockaddr_in6*)saddr;
+		addr->port = ntohs(inet6addr->sin6_port);
+		baddr = &inet6addr->sin6_addr;
+#ifdef AF_PACKET
+	} else if (saddr->sa_family == AF_PACKET) {
+		struct sockaddr_ll *etheradddr = (struct sockaddr_ll*)saddr;
+		addr->prefix = etheradddr->sll_hatype;
+		addr->port = etheradddr->sll_ifindex;
+		char *c = addr->host;
+		for (size_t i = 0; i < etheradddr->sll_halen; i++) {
+			*c++ = nixio__bin2hex[(etheradddr->sll_addr[i] & 0xf0) >> 4];
+			*c++ = nixio__bin2hex[(etheradddr->sll_addr[i] & 0x0f)];
+			*c++ = ':';
+		}
+		*(c-1) = 0;
+		return 0;
+#endif
+	} else {
+		errno = EAFNOSUPPORT;
+		return -1;
+	}
+
+	if (!inet_ntop(saddr->sa_family, baddr, addr->host, sizeof(addr->host))) {
+		return -1;
+	}
+
+	return 0;
+}
+
+/**
+ * address pulling helper
+ */
+int nixio__addr_write(nixio_addr *addr, struct sockaddr *saddr) {
+	if (addr->family == AF_UNSPEC) {
+		if (strchr(addr->host, ':')) {
+			addr->family = AF_INET6;
+		} else {
+			addr->family = AF_INET;
+		}
+	}
+	if (addr->family == AF_INET) {
+		struct sockaddr_in *inetaddr = (struct sockaddr_in *)saddr;
+		memset(inetaddr, 0, sizeof(struct sockaddr_in));
+
+		if (inet_pton(AF_INET, addr->host, &inetaddr->sin_addr) < 1) {
+			return -1;
+		}
+
+		inetaddr->sin_family = AF_INET;
+		inetaddr->sin_port = htons((uint16_t)addr->port);
+		return 0;
+	} else if (addr->family == AF_INET6) {
+		struct sockaddr_in6 *inet6addr = (struct sockaddr_in6 *)saddr;
+		memset(inet6addr, 0, sizeof(struct sockaddr_in6));
+
+		if (inet_pton(AF_INET6, addr->host, &inet6addr->sin6_addr) < 1) {
+			return -1;
+		}
+
+		inet6addr->sin6_family = AF_INET6;
+		inet6addr->sin6_port = htons((uint16_t)addr->port);
+		return 0;
+	} else {
+		errno = EAFNOSUPPORT;
+		return -1;
+	}
+}
+
+/**
+ * netmask to prefix helper
+ */
+int nixio__addr_prefix(struct sockaddr *saddr) {
+	int prefix = 0;
+	size_t len;
+	uint8_t *addr;
+
+	if (saddr->sa_family == AF_INET) {
+		addr = (uint8_t*)(&((struct sockaddr_in*)saddr)->sin_addr);
+		len = 4;
+	} else if (saddr->sa_family == AF_INET6) {
+		addr = (uint8_t*)(&((struct sockaddr_in6*)saddr)->sin6_addr);
+		len = 16;
+	} else {
+		errno = EAFNOSUPPORT;
+		return -1;
+	}
+
+	for (size_t i = 0; i < len; i++) {
+		if (addr[i] == 0xff) {
+			prefix += 8;
+		} else if (addr[i] == 0x00) {
+			break;
+		} else {
+			for (uint8_t c = addr[i]; c; c <<= 1) {
+				prefix++;
+			}
+		}
+	}
+
+	return prefix;
+}
+
+/**
+ * getaddrinfo(host, family, port)
+ */
+static int nixio_getaddrinfo(lua_State *L) {
+	const char *host = NULL;
+	if (!lua_isnoneornil(L, 1)) {
+		host = luaL_checklstring(L, 1, NULL);
+	}
+	const char *family = luaL_optlstring(L, 2, "any", NULL);
+	const char *port = lua_tolstring(L, 3, NULL);
+
+	struct addrinfo hints, *result, *rp;
+	memset(&hints, 0, sizeof(hints));
+
+	if (!strcmp(family, "any")) {
+		hints.ai_family = AF_UNSPEC;
+	} else if (!strcmp(family, "inet")) {
+		hints.ai_family = AF_INET;
+	} else if (!strcmp(family, "inet6")) {
+		hints.ai_family = AF_INET6;
+	} else {
+		return luaL_argerror(L, 2, "supported values: any, inet, inet6");
+	}
+
+	hints.ai_socktype = 0;
+	hints.ai_protocol = 0;
+
+	int aistat = getaddrinfo(host, port, &hints, &result);
+	if (aistat) {
+		lua_pushnil(L);
+		lua_pushinteger(L, aistat);
+		lua_pushstring(L, gai_strerror(aistat));
+		return 3;
+	}
+
+	/* create socket object */
+	lua_newtable(L);
+	int i = 1;
+
+	for (rp = result; rp != NULL; rp = rp->ai_next) {
+		/* avoid duplicate results */
+#ifndef __WINNT__
+		if (!port && rp->ai_socktype != SOCK_STREAM) {
+			continue;
+		}
+#endif
+
+		if (rp->ai_family == AF_INET || rp->ai_family == AF_INET6) {
+			lua_createtable(L, 0, port ? 4 : 2);
+			if (rp->ai_family == AF_INET) {
+				lua_pushliteral(L, "inet");
+			} else if (rp->ai_family == AF_INET6) {
+				lua_pushliteral(L, "inet6");
+			}
+			lua_setfield(L, -2, "family");
+
+			if (port) {
+				switch (rp->ai_socktype) {
+					case SOCK_STREAM:
+						lua_pushliteral(L, "stream");
+						break;
+					case SOCK_DGRAM:
+						lua_pushliteral(L, "dgram");
+						break;
+					case SOCK_RAW:
+						lua_pushliteral(L, "raw");
+						break;
+					default:
+						lua_pushnil(L);
+						break;
+				}
+				lua_setfield(L, -2, "socktype");
+			}
+
+			nixio_addr addr;
+			if (nixio__addr_parse(&addr, rp->ai_addr)) {
+				freeaddrinfo(result);
+				return nixio__perror_s(L);
+			}
+
+			if (port) {
+				lua_pushinteger(L, addr.port);
+				lua_setfield(L, -2, "port");
+			}
+
+			lua_pushstring(L, addr.host);
+			lua_setfield(L, -2, "address");
+			lua_rawseti(L, -2, i++);
+		}
+	}
+
+	freeaddrinfo(result);
+
+	return 1;
+}
+
+/**
+ * getnameinfo(address, family[, timeout])
+ */
+static int nixio_getnameinfo(lua_State *L) {
+	const char *ip = luaL_checkstring(L, 1);
+	const char *family = luaL_optstring(L, 2, NULL);
+
+#ifdef __linux__
+	struct sigaction sa_new, sa_old;
+	int timeout = luaL_optnumber(L, 3, 0);
+	if (timeout > 0 && timeout < 1000)
+	{
+		sa_new.sa_handler = nixio__handle_alarm;
+		sa_new.sa_flags   = 0;
+		sigemptyset(&sa_new.sa_mask);
+		sigaction(SIGALRM, &sa_new, &sa_old);
+
+		/* user timeout exceeded */
+		if (setjmp(nixio__jump_alarm))
+		{
+			sigaction(SIGALRM, &sa_old, NULL);
+
+			lua_pushnil(L);
+			lua_pushinteger(L, EAI_AGAIN);
+			lua_pushstring(L, gai_strerror(EAI_AGAIN));
+
+			return 3;
+		}
+
+		ualarm(timeout * 1000, 0);
+	}
+#endif
+
+	char host[NI_MAXHOST];
+
+	struct sockaddr_storage saddr;
+	nixio_addr addr;
+	memset(&addr, 0, sizeof(addr));
+	strncpy(addr.host, ip, sizeof(addr.host) - 1);
+
+	if (!family) {
+		addr.family = AF_UNSPEC;
+	} else if (!strcmp(family, "inet")) {
+		addr.family = AF_INET;
+	} else if (!strcmp(family, "inet6")) {
+		addr.family = AF_INET6;
+	} else {
+		return luaL_argerror(L, 2, "supported values: inet, inet6");
+	}
+
+	nixio__addr_write(&addr, (struct sockaddr *)&saddr);
+
+	int res = getnameinfo((struct sockaddr *)&saddr, sizeof(saddr),
+	 host, sizeof(host), NULL, 0, NI_NAMEREQD);
+
+#ifdef __linux__
+	if (timeout > 0 && timeout < 1000)
+	{
+		ualarm(0, 0);
+		sigaction(SIGALRM, &sa_old, NULL);
+	}
+#endif
+
+	if (res) {
+		lua_pushnil(L);
+		lua_pushinteger(L, res);
+		lua_pushstring(L, gai_strerror(res));
+		return 3;
+	} else {
+		lua_pushstring(L, host);
+		return 1;
+	}
+}
+
+/**
+ * getsockname()
+ */
+static int nixio_sock_getsockname(lua_State *L) {
+	int sockfd = nixio__checksockfd(L);
+	struct sockaddr_storage saddr;
+	socklen_t addrlen = sizeof(saddr);
+	nixio_addr addr;
+
+	if (getsockname(sockfd, (struct sockaddr*)&saddr, &addrlen) ||
+	 nixio__addr_parse(&addr, (struct sockaddr*)&saddr)) {
+		return nixio__perror_s(L);
+	}
+
+	lua_pushstring(L, addr.host);
+	lua_pushinteger(L, addr.port);
+	return 2;
+}
+
+/**
+ * getpeername()
+ */
+static int nixio_sock_getpeername(lua_State *L) {
+	int sockfd = nixio__checksockfd(L);
+	struct sockaddr_storage saddr;
+	socklen_t addrlen = sizeof(saddr);
+	nixio_addr addr;
+
+	if (getpeername(sockfd, (struct sockaddr*)&saddr, &addrlen) ||
+	 nixio__addr_parse(&addr, (struct sockaddr*)&saddr)) {
+		return nixio__perror_s(L);
+	}
+
+	lua_pushstring(L, addr.host);
+	lua_pushinteger(L, addr.port);
+	return 2;
+}
+
+#if defined(__linux__) || defined(BSD)
+#ifdef BSD
+#include <net/if.h>
+#endif
+#include <ifaddrs.h>
+
+static int nixio_getifaddrs(lua_State *L) {
+	nixio_addr addr;
+	struct ifaddrs *ifaddr, *c;
+	if (getifaddrs(&ifaddr) == -1) {
+		return nixio__perror(L);
+	}
+
+	lua_newtable(L);
+	unsigned int i = 1;
+
+	for (c = ifaddr; c; c = c->ifa_next) {
+		lua_newtable(L);
+
+		lua_pushstring(L, c->ifa_name);
+		lua_setfield(L, -2, "name");
+
+		lua_createtable(L, 0, 7);
+			lua_pushboolean(L, c->ifa_flags & IFF_UP);
+			lua_setfield(L, -2, "up");
+
+			lua_pushboolean(L, c->ifa_flags & IFF_BROADCAST);
+			lua_setfield(L, -2, "broadcast");
+
+			lua_pushboolean(L, c->ifa_flags & IFF_LOOPBACK);
+			lua_setfield(L, -2, "loopback");
+
+			lua_pushboolean(L, c->ifa_flags & IFF_POINTOPOINT);
+			lua_setfield(L, -2, "pointtopoint");
+
+			lua_pushboolean(L, c->ifa_flags & IFF_NOARP);
+			lua_setfield(L, -2, "noarp");
+
+			lua_pushboolean(L, c->ifa_flags & IFF_PROMISC);
+			lua_setfield(L, -2, "promisc");
+
+			lua_pushboolean(L, c->ifa_flags & IFF_MULTICAST);
+			lua_setfield(L, -2, "multicast");
+		lua_setfield(L, -2, "flags");
+
+		if (c->ifa_addr) {
+			if (!nixio__addr_parse(&addr, c->ifa_addr)) {
+				lua_pushstring(L, addr.host);
+				lua_setfield(L, -2, "addr");
+			}
+
+			if (c->ifa_addr->sa_family == AF_INET) {
+				lua_pushliteral(L, "inet");
+			} else if (c->ifa_addr->sa_family == AF_INET6) {
+				lua_pushliteral(L, "inet6");
+#ifdef AF_PACKET
+			} else if (c->ifa_addr->sa_family == AF_PACKET) {
+				lua_pushliteral(L, "packet");
+#endif
+			} else {
+				lua_pushliteral(L, "unknown");
+			}
+			lua_setfield(L, -2, "family");
+
+#ifdef __linux__
+			if (c->ifa_addr->sa_family == AF_PACKET) {
+				lua_pushinteger(L, addr.port);
+				lua_setfield(L, -2, "ifindex");
+
+				lua_pushinteger(L, addr.prefix);
+				lua_setfield(L, -2, "hatype");
+			}
+#endif
+		}
+
+#ifdef __linux__
+		if (c->ifa_data && (!c->ifa_addr
+							|| c->ifa_addr->sa_family == AF_PACKET)) {
+			if (!c->ifa_addr) {
+				lua_pushliteral(L, "packet");
+				lua_setfield(L, -2, "family");
+			}
+
+			lua_createtable(L, 0, 10);
+			struct nixio__nds *stats = c->ifa_data;
+
+			lua_pushnumber(L, stats->rx_packets);
+			lua_setfield(L, -2, "rx_packets");
+
+			lua_pushnumber(L, stats->tx_packets);
+			lua_setfield(L, -2, "tx_packets");
+
+			lua_pushnumber(L, stats->rx_bytes);
+			lua_setfield(L, -2, "rx_bytes");
+
+			lua_pushnumber(L, stats->tx_bytes);
+			lua_setfield(L, -2, "tx_bytes");
+
+			lua_pushnumber(L, stats->rx_errors);
+			lua_setfield(L, -2, "rx_errors");
+
+			lua_pushnumber(L, stats->tx_errors);
+			lua_setfield(L, -2, "tx_errors");
+
+			lua_pushnumber(L, stats->rx_dropped);
+			lua_setfield(L, -2, "rx_dropped");
+
+			lua_pushnumber(L, stats->tx_dropped);
+			lua_setfield(L, -2, "tx_dropped");
+
+			lua_pushnumber(L, stats->multicast);
+			lua_setfield(L, -2, "multicast");
+
+			lua_pushnumber(L, stats->collisions);
+			lua_setfield(L, -2, "collisions");
+		} else {
+			lua_newtable(L);
+		}
+		lua_setfield(L, -2, "data");
+#endif
+
+		if (c->ifa_netmask && !nixio__addr_parse(&addr, c->ifa_netmask)) {
+			lua_pushstring(L, addr.host);
+			lua_setfield(L, -2, "netmask");
+
+			lua_pushinteger(L, nixio__addr_prefix(c->ifa_netmask));
+			lua_setfield(L, -2, "prefix");
+		}
+
+		if (c->ifa_broadaddr && !nixio__addr_parse(&addr, c->ifa_broadaddr)) {
+			lua_pushstring(L, addr.host);
+			lua_setfield(L, -2, "broadaddr");
+		}
+
+		if (c->ifa_dstaddr && !nixio__addr_parse(&addr, c->ifa_dstaddr)) {
+			lua_pushstring(L, addr.host);
+			lua_setfield(L, -2, "dstaddr");
+		}
+
+		lua_rawseti(L, -2, i++);
+	}
+
+	freeifaddrs(ifaddr);
+	return 1;
+}
+#endif
+
+
+/* module table */
+static const luaL_reg R[] = {
+#if defined(__linux__) || defined(BSD)
+	{"getifaddrs",	nixio_getifaddrs},
+#endif
+	{"getaddrinfo",	nixio_getaddrinfo},
+	{"getnameinfo",	nixio_getnameinfo},
+	{NULL,			NULL}
+};
+
+/* object table */
+static const luaL_reg M[] = {
+	{"getsockname",	nixio_sock_getsockname},
+	{"getpeername",	nixio_sock_getpeername},
+	{NULL,			NULL}
+};
+
+void nixio_open_address(lua_State *L) {
+	luaL_register(L, NULL, R);
+
+	lua_pushvalue(L, -2);
+	luaL_register(L, NULL, M);
+	lua_pop(L, 1);
+}