-/*
- * Copyright (C) 2006-2008 Stig Venaas <venaas@uninett.no>
- *
- * Permission to use, copy, modify, and 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.
- */
+/* Copyright 2012-2013 NORDUnet A/S. All rights reserved.
+ See LICENSE for licensing information. */
-/* Code contributions from:
- *
- * Stefan Winter <stefan.winter@restena.lu>
- */
-
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <netdb.h>
-#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <sys/select.h>
-#include <stdarg.h>
-#include "debug.h"
+#include <radsec/radsec.h>
+#include <radsec/radsec-impl.h>
#include "util.h"
-char *stringcopy(const char *s, int len) {
- char *r;
- if (!s)
- return NULL;
- if (!len)
- len = strlen(s);
- r = malloc(len + 1);
- if (!r)
- debug(DBG_ERR, "stringcopy: malloc failed");
- memcpy(r, s, len);
- r[len] = '\0';
- return r;
-}
-
-void printfchars(char *prefixfmt, char *prefix, char *charfmt, char *chars, int len) {
- int i;
- unsigned char *s = (unsigned char *)chars;
- if (prefix)
- printf(prefixfmt ? prefixfmt : "%s: ", prefix);
- for (i = 0; i < len; i++)
- printf(charfmt ? charfmt : "%c", s[i]);
- printf("\n");
-}
-
-void port_set(struct sockaddr *sa, uint16_t port) {
- switch (sa->sa_family) {
- case AF_INET:
- ((struct sockaddr_in *)sa)->sin_port = htons(port);
- break;
- case AF_INET6:
- ((struct sockaddr_in6 *)sa)->sin6_port = htons(port);
- break;
- }
-}
-
-struct sockaddr *addr_copy(struct sockaddr *in) {
- struct sockaddr *out = NULL;
-
- switch (in->sa_family) {
- case AF_INET:
- out = malloc(sizeof(struct sockaddr_in));
- if (out) {
- memset(out, 0, sizeof(struct sockaddr_in));
- ((struct sockaddr_in *)out)->sin_addr = ((struct sockaddr_in *)in)->sin_addr;
- }
- break;
- case AF_INET6:
- out = malloc(sizeof(struct sockaddr_in6));
- if (out) {
- memset(out, 0, sizeof(struct sockaddr_in6));
- ((struct sockaddr_in6 *)out)->sin6_addr = ((struct sockaddr_in6 *)in)->sin6_addr;
- }
- break;
- }
- out->sa_family = in->sa_family;
-#ifdef SIN6_LEN
- out->sa_len = in->sa_len;
-#endif
- return out;
-}
-
-char *addr2string(struct sockaddr *addr) {
- struct sockaddr_in6 *sa6;
- struct sockaddr_in sa4;
- static char addr_buf[2][INET6_ADDRSTRLEN];
- static int i = 0;
- i = !i;
- if (addr->sa_family == AF_INET6) {
- sa6 = (struct sockaddr_in6 *)addr;
- if (IN6_IS_ADDR_V4MAPPED(&sa6->sin6_addr)) {
- memset(&sa4, 0, sizeof(sa4));
- sa4.sin_family = AF_INET;
- sa4.sin_port = sa6->sin6_port;
- memcpy(&sa4.sin_addr, &sa6->sin6_addr.s6_addr[12], 4);
- addr = (struct sockaddr *)&sa4;
- }
- }
- if (getnameinfo(addr, SOCKADDRP_SIZE(addr), addr_buf[i], sizeof(addr_buf[i]),
- NULL, 0, NI_NUMERICHOST)) {
- debug(DBG_WARN, "getnameinfo failed");
- return "getnameinfo_failed";
- }
- return addr_buf[i];
-}
-
-#if 0
-/* not in use */
-int connectport(int type, char *host, char *port) {
- struct addrinfo hints, *res0, *res;
- int s = -1;
+char *
+rs_strdup (struct rs_context *ctx, const char *s)
+{
+ size_t len;
+ char *buf;
- memset(&hints, 0, sizeof(hints));
- hints.ai_socktype = type;
- hints.ai_family = AF_UNSPEC;
+ len = strlen (s);
+ buf = rs_malloc (ctx, len + 1);
- if (getaddrinfo(host, port, &hints, &res0) != 0) {
- debug(DBG_ERR, "connectport: can't resolve host %s port %s", host, port);
- return -1;
- }
+ if (buf != NULL)
+ memcpy (buf, s, len + 1);
+ else
+ rs_err_ctx_push (ctx, RSE_NOMEM, __func__);
- for (res = res0; res; res = res->ai_next) {
- s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
- if (s < 0) {
- debug(DBG_WARN, "connectport: socket failed");
- continue;
- }
- if (connect(s, res->ai_addr, res->ai_addrlen) == 0)
- break;
- debug(DBG_WARN, "connectport: connect failed");
- close(s);
- s = -1;
- }
- freeaddrinfo(res0);
- return s;
+ return buf;
}
-#endif
-
-/* Disable the "Don't Fragment" bit for UDP sockets. It is set by default, which may cause an "oversized"
- RADIUS packet to be discarded on first attempt (due to Path MTU discovery).
-*/
-
-void disable_DF_bit(int socket, struct addrinfo *res) {
- if ((res->ai_family == AF_INET) && (res->ai_socktype == SOCK_DGRAM)) {
-#if defined(IP_MTU_DISCOVER) && defined(IP_PMTUDISC_DONT)
- /*
- * Turn off Path MTU discovery on IPv4/UDP sockets, Linux variant.
- */
- int r, action;
- debug(DBG_INFO, "disable_DF_bit: disabling DF bit (Linux variant)");
- action = IP_PMTUDISC_DONT;
- r = setsockopt(socket, IPPROTO_IP, IP_MTU_DISCOVER, &action, sizeof(action));
- if (r == -1)
- debug(DBG_WARN, "Failed to set IP_MTU_DISCOVER");
-#else
- debug(DBG_INFO, "Non-Linux platform, unable to unset DF bit for UDP. You should check with tcpdump whether radsecproxy will send its UDP packets with DF bit set!");
-#endif
- }
-}
-
-int bindtoaddr(struct addrinfo *addrinfo, int family, int reuse, int v6only) {
- int s, on = 1;
- struct addrinfo *res;
-
- for (res = addrinfo; res; res = res->ai_next) {
- if (family != AF_UNSPEC && family != res->ai_family)
- continue;
- s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
- if (s < 0) {
- debug(DBG_WARN, "bindtoaddr: socket failed");
- continue;
- }
-
- disable_DF_bit(s,res);
-
- if (reuse)
- setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
-#ifdef IPV6_V6ONLY
- if (v6only)
- setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on));
-#endif
- if (!bind(s, res->ai_addr, res->ai_addrlen))
- return s;
- debug(DBG_WARN, "bindtoaddr: bind failed");
- close(s);
- }
- return -1;
-}
-
-int connectnonblocking(int s, const struct sockaddr *addr, socklen_t addrlen, struct timeval *timeout) {
- int origflags, error = 0, r = -1;
- fd_set writefds;
- socklen_t len;
-
- origflags = fcntl(s, F_GETFL, 0);
- fcntl(s, F_SETFL, origflags | O_NONBLOCK);
- if (!connect(s, addr, addrlen)) {
- r = 0;
- goto exit;
- }
- if (errno != EINPROGRESS)
- goto exit;
-
- FD_ZERO(&writefds);
- FD_SET(s, &writefds);
- if (select(s + 1, NULL, &writefds, NULL, timeout) < 1)
- goto exit;
-
- len = sizeof(error);
- if (!getsockopt(s, SOL_SOCKET, SO_ERROR, (char*)&error, &len) && !error)
- r = 0;
-
-exit:
- fcntl(s, F_SETFL, origflags);
- return r;
-}
-
-int connecttcp(struct addrinfo *addrinfo, struct addrinfo *src, uint16_t timeout) {
- int s;
- struct addrinfo *res;
- struct timeval to;
-
- s = -1;
- if (timeout) {
- if (addrinfo && addrinfo->ai_next && timeout > 5)
- timeout = 5;
- to.tv_sec = timeout;
- to.tv_usec = 0;
- }
-
- for (res = addrinfo; res; res = res->ai_next) {
- s = bindtoaddr(src, res->ai_family, 1, 1);
- if (s < 0) {
- debug(DBG_WARN, "connecttoserver: socket failed");
- continue;
- }
- if ((timeout
- ? connectnonblocking(s, res->ai_addr, res->ai_addrlen, &to)
- : connect(s, res->ai_addr, res->ai_addrlen)) == 0)
- break;
- debug(DBG_WARN, "connecttoserver: connect failed");
- close(s);
- s = -1;
- }
- return s;
-}
-
-/* Local Variables: */
-/* c-file-style: "stroustrup" */
-/* End: */
projects / radsecproxy.git / blobdiff