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prosody
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util-src/net.c @ 10688:83668e16b9a3
MUC: Switch to new storage format by default
Changing the default setting of `new_muc_storage_format` from false to true.
The code supports reading both formats since 0.11, but servers with MUCs stored
using the new format will not be able to downgrade to 0.10 or earlier.
The new format is clearer (less nesting for the most commonly-accessed data),
and combined with the new map-store methods, allows for some operations to become
more efficient (such as finding out which MUCs on a service a given user is affiliated
with).
author | Matthew Wild <mwild1@gmail.com> |
---|---|
date | Thu, 12 Mar 2020 16:10:44 +0000 |
parent | 10637:aa304109fa1b |
child | 10921:6eb5d2bb11af |
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/* Prosody IM -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- -- Copyright (C) 2012 Paul Aurich -- Copyright (C) 2013 Matthew Wild -- Copyright (C) 2013 Florian Zeitz -- */ #ifndef _GNU_SOURCE #define _GNU_SOURCE #endif #include <stddef.h> #include <string.h> #include <errno.h> #ifndef _WIN32 #include <sys/ioctl.h> #include <sys/types.h> #include <sys/socket.h> #include <net/if.h> #include <ifaddrs.h> #include <arpa/inet.h> #include <netinet/in.h> #endif #include <lua.h> #include <lauxlib.h> #if (LUA_VERSION_NUM == 501) #define luaL_setfuncs(L, R, N) luaL_register(L, NULL, R) #endif /* Enumerate all locally configured IP addresses */ static const char *const type_strings[] = { "both", "ipv4", "ipv6", NULL }; static int lc_local_addresses(lua_State *L) { #ifndef _WIN32 /* Link-local IPv4 addresses; see RFC 3927 and RFC 5735 */ const uint32_t ip4_linklocal = htonl(0xa9fe0000); /* 169.254.0.0 */ const uint32_t ip4_mask = htonl(0xffff0000); struct ifaddrs *addr = NULL, *a; #endif int n = 1; int type = luaL_checkoption(L, 1, "both", type_strings); const char link_local = lua_toboolean(L, 2); /* defaults to 0 (false) */ const char ipv4 = (type == 0 || type == 1); const char ipv6 = (type == 0 || type == 2); #ifndef _WIN32 if(getifaddrs(&addr) < 0) { lua_pushnil(L); lua_pushfstring(L, "getifaddrs failed (%d): %s", errno, strerror(errno)); return 2; } #endif lua_newtable(L); #ifndef _WIN32 for(a = addr; a; a = a->ifa_next) { int family; char ipaddr[INET6_ADDRSTRLEN]; const char *tmp = NULL; if(a->ifa_addr == NULL || a->ifa_flags & IFF_LOOPBACK) { continue; } family = a->ifa_addr->sa_family; if(ipv4 && family == AF_INET) { struct sockaddr_in *sa = (struct sockaddr_in *)a->ifa_addr; if(!link_local && ((sa->sin_addr.s_addr & ip4_mask) == ip4_linklocal)) { continue; } tmp = inet_ntop(family, &sa->sin_addr, ipaddr, sizeof(ipaddr)); } else if(ipv6 && family == AF_INET6) { struct sockaddr_in6 *sa = (struct sockaddr_in6 *)a->ifa_addr; if(!link_local && IN6_IS_ADDR_LINKLOCAL(&sa->sin6_addr)) { continue; } if(IN6_IS_ADDR_V4MAPPED(&sa->sin6_addr) || IN6_IS_ADDR_V4COMPAT(&sa->sin6_addr)) { continue; } tmp = inet_ntop(family, &sa->sin6_addr, ipaddr, sizeof(ipaddr)); } if(tmp != NULL) { lua_pushstring(L, tmp); lua_rawseti(L, -2, n++); } /* TODO: Error reporting? */ } freeifaddrs(addr); #else if(ipv4) { lua_pushstring(L, "0.0.0.0"); lua_rawseti(L, -2, n++); } if(ipv6) { lua_pushstring(L, "::"); lua_rawseti(L, -2, n++); } #endif return 1; } static int lc_pton(lua_State *L) { char buf[16]; const char *ipaddr = luaL_checkstring(L, 1); int errno_ = 0; int family = strchr(ipaddr, ':') ? AF_INET6 : AF_INET; switch(inet_pton(family, ipaddr, &buf)) { case 1: lua_pushlstring(L, buf, family == AF_INET6 ? 16 : 4); return 1; case -1: errno_ = errno; lua_pushnil(L); lua_pushstring(L, strerror(errno_)); lua_pushinteger(L, errno_); return 3; default: case 0: lua_pushnil(L); lua_pushstring(L, strerror(EINVAL)); lua_pushinteger(L, EINVAL); return 3; } } static int lc_ntop(lua_State *L) { char buf[INET6_ADDRSTRLEN]; int family; int errno_; size_t l; const char *ipaddr = luaL_checklstring(L, 1, &l); if(l == 16) { family = AF_INET6; } else if(l == 4) { family = AF_INET; } else { lua_pushnil(L); lua_pushstring(L, strerror(EAFNOSUPPORT)); lua_pushinteger(L, EAFNOSUPPORT); return 3; } if(!inet_ntop(family, ipaddr, buf, INET6_ADDRSTRLEN)) { errno_ = errno; lua_pushnil(L); lua_pushstring(L, strerror(errno_)); lua_pushinteger(L, errno_); return 3; } lua_pushstring(L, (const char *)(&buf)); return 1; } int luaopen_util_net(lua_State *L) { #if (LUA_VERSION_NUM > 501) luaL_checkversion(L); #endif luaL_Reg exports[] = { { "local_addresses", lc_local_addresses }, { "pton", lc_pton }, { "ntop", lc_ntop }, { NULL, NULL } }; lua_createtable(L, 0, 1); luaL_setfuncs(L, exports, 0); return 1; }