1188 lines
31 KiB
C
1188 lines
31 KiB
C
/* $NetBSD: net.c,v 1.110 2006/08/19 21:18:40 martin Exp $ */
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/*
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* Copyright 1997 Piermont Information Systems Inc.
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* All rights reserved.
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*
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* Written by Philip A. Nelson for Piermont Information Systems Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Piermont Information Systems Inc.
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* 4. The name of Piermont Information Systems Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/* net.c -- routines to fetch files off the network. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <curses.h>
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#include <time.h>
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#include <unistd.h>
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#include <sys/param.h>
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#include <sys/stat.h>
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#ifdef INET6
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#include <sys/sysctl.h>
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#endif
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <netinet/in.h>
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#include <net/if.h>
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#include <net/if_media.h>
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#include <arpa/inet.h>
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#include "defs.h"
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#include "md.h"
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#include "msg_defs.h"
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#include "menu_defs.h"
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#include "txtwalk.h"
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#include <sys/wait.h>
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#include <sys/resource.h>
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int network_up = 0;
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/* Access to network information */
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static char *net_devices;
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static char *net_up;
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static char net_dev[STRSIZE];
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static char net_domain[STRSIZE];
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static char net_host[STRSIZE];
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static char net_ip[SSTRSIZE];
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static char net_srv_ip[SSTRSIZE];
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static char net_mask[SSTRSIZE];
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static char net_namesvr[STRSIZE];
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static char net_defroute[STRSIZE];
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static char net_media[STRSIZE];
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static char sl_flags[STRSIZE];
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static int net_dhcpconf;
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#define DHCPCONF_IPADDR 0x01
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#define DHCPCONF_NAMESVR 0x02
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#define DHCPCONF_HOST 0x04
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#define DHCPCONF_DOMAIN 0x08
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#ifdef INET6
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static char net_ip6[STRSIZE];
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char net_namesvr6[STRSIZE];
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static int net_ip6conf;
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#define IP6CONF_AUTOHOST 0x01
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#endif
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/* URL encode unsafe characters. */
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static char *url_encode (char *dst, const char *src, const char *ep,
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const char *safe_chars,
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int encode_leading_slash);
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static void write_etc_hosts(FILE *f);
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#define DHCLIENT_EX "/sbin/dhclient"
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#include <signal.h>
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static int config_dhcp(char *);
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static void get_dhcp_value(char *, size_t, const char *);
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#ifdef INET6
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static int is_v6kernel (void);
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static void init_v6kernel (int);
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static int get_v6wait (void);
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#endif
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/*
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* URL encode unsafe characters. See RFC 1738.
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*
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* Copies src string to dst, encoding unsafe or reserved characters
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* in %hex form as it goes, and returning a pointer to the result.
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* The result is always a nul-terminated string even if it had to be
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* truncated to avoid overflowing the available space.
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*
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* This url_encode() function does not operate on complete URLs, it
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* operates on strings that make up parts of URLs. For example, in a
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* URL like "ftp://username:password@host/path", the username, password,
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* host and path should each be encoded separately before they are
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* joined together with the punctuation characters.
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*
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* In most ordinary use, the path portion of a URL does not start with
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* a slash; the slash is a separator between the host portion and the
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* path portion, and is dealt with by software outside the url_encode()
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* function. However, it is valid for url_encode() to be passed a
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* string that does begin with a slash. For example, the string might
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* represent a password, or a path part of a URL that the user really
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* does want to begin with a slash.
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*
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* len is the length of the destination buffer. The result will be
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* truncated if necessary to fit in the destination buffer.
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*
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* safe_chars is a string of characters that should not be encoded. If
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* safe_chars is non-NULL, any characters in safe_chars as well as any
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* alphanumeric characters will be copied from src to dst without
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* encoding. Some potentially useful settings for this parameter are:
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*
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* NULL Everything is encoded (even alphanumerics)
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* "" Everything except alphanumerics are encoded
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* "/" Alphanumerics and '/' remain unencoded
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* "$-_.+!*'()," Consistent with a strict reading of RFC 1738
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* "$-_.+!*'(),/" As above, except '/' is not encoded
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* "-_.+!,/" As above, except shell special characters are encoded
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*
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* encode_leading_slash is a flag that determines whether or not to
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* encode a leading slash in a string. If this flag is set, and if the
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* first character in the src string is '/', then the leading slash will
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* be encoded (as "%2F"), even if '/' is one of the characters in the
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* safe_chars string. Note that only the first character of the src
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* string is affected by this flag, and that leading slashes are never
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* deleted, but either retained unchanged or encoded.
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*
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* Unsafe and reserved characters are defined in RFC 1738 section 2.2.
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* The most important parts are:
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*
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* The characters ";", "/", "?", ":", "@", "=" and "&" are the
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* characters which may be reserved for special meaning within a
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* scheme. No other characters may be reserved within a scheme.
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* [...]
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*
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* Thus, only alphanumerics, the special characters "$-_.+!*'(),",
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* and reserved characters used for their reserved purposes may be
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* used unencoded within a URL.
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*
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*/
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#define RFC1738_SAFE "$-_.+!*'(),"
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#define RFC1738_SAFE_LESS_SHELL "-_.+!,"
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#define RFC1738_SAFE_LESS_SHELL_PLUS_SLASH "-_.+!,/"
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static char *
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url_encode(char *dst, const char *src, const char *ep,
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const char *safe_chars, int encode_leading_slash)
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{
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int ch;
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ep--;
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for (; dst < ep; src++) {
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ch = *src & 0xff;
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if (ch == 0)
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break;
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if (safe_chars != NULL &&
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(ch != '/' || !encode_leading_slash) &&
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(isalnum(ch) || strchr(safe_chars, ch))) {
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*dst++ = ch;
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} else {
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/* encode this char */
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if (ep - dst < 3)
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break;
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snprintf(dst, ep - dst, "%%%02X", ch);
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dst += 3;
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}
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encode_leading_slash = 0;
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}
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*dst = '\0';
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return dst;
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}
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static const char *ignored_if_names[] = {
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"eon", /* netiso */
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"gre", /* net */
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"ipip", /* netinet */
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"gif", /* netinet6 */
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"faith", /* netinet6 */
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"lo", /* net */
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#if 0
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"mdecap", /* netinet -- never in IF list (?) XXX */
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#endif
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"nsip", /* netns */
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"ppp", /* net */
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#if 0
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"sl", /* net */
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#endif
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"strip", /* net */
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"tun", /* net */
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/* XXX others? */
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NULL,
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};
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static void
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get_ifconfig_info(void)
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{
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char *textbuf;
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char *t, *nt;
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const char **ignore;
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int textsize;
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ulong fl;
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char *cp;
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free(net_devices);
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net_devices = NULL;
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free(net_up);
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net_up = NULL;
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/* Get ifconfig information */
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textsize = collect(T_OUTPUT, &textbuf, "/sbin/ifconfig -a 2>/dev/null");
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if (textsize < 0) {
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if (logging)
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(void)fprintf(logfp,
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"Aborting: Could not run ifconfig.\n");
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(void)fprintf(stderr, "Could not run ifconfig.");
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exit(1);
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}
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for (t = textbuf; t != NULL && *t != 0; t = nt) {
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/* find entry for next interface */
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for (nt = t; (nt = strchr(nt, '\n')); ) {
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if (*++nt != '\t')
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break;
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}
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if (memcmp(t, "lo0:", 4) == 0)
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/* completely ignore loopback interface */
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continue;
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cp = strchr(t, '=');
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if (cp == NULL)
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break;
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/* get interface flags */
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fl = strtoul(cp + 1, &cp, 16);
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if (*cp != '<')
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break;
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if (fl & IFF_UP) {
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/* This interface might be connected to the server */
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cp = strchr(t, ':');
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if (cp == NULL)
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break;
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asprintf(&cp, "%s%.*s ",
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net_up ? net_up : "", (int)(cp - t), t);
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free(net_up);
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net_up = cp;
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}
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for (ignore = ignored_if_names; *ignore != NULL; ignore++) {
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size_t len = strlen(*ignore);
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if (strncmp(t, *ignore, len) == 0 &&
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isdigit((unsigned char)t[len]))
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break;
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}
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if (*ignore != NULL)
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continue;
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cp = strchr(t, ':');
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if (cp == NULL)
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break;
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asprintf(&cp, "%s%.*s ",
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net_devices ? net_devices : "", (int)(cp - t), t);
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free(net_devices);
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net_devices = cp;
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}
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free(textbuf);
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}
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static int
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do_ifreq(struct ifmediareq *ifmr, unsigned long cmd)
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{
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int sock;
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int rval;
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sock = socket(PF_INET, SOCK_DGRAM, 0);
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if (sock == -1)
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return -1;
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memset(ifmr, 0, sizeof *ifmr);
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strncpy(ifmr->ifm_name, net_dev, sizeof ifmr->ifm_name);
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rval = ioctl(sock, cmd, ifmr);
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close(sock);
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return rval;
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}
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/* Fill in defaults network values for the selected interface */
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static void
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get_ifinterface_info(void)
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{
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struct ifmediareq ifmr;
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struct sockaddr_in *sa_in = (void *)&((struct ifreq *)&ifmr)->ifr_addr;
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int modew;
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const char *media_opt;
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const char *sep;
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if (do_ifreq(&ifmr, SIOCGIFADDR) == 0 && sa_in->sin_addr.s_addr != 0)
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strlcpy(net_ip, inet_ntoa(sa_in->sin_addr), sizeof net_ip);
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if (do_ifreq(&ifmr, SIOCGIFNETMASK) == 0 && sa_in->sin_addr.s_addr != 0)
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strlcpy(net_mask, inet_ntoa(sa_in->sin_addr), sizeof net_mask);
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if (do_ifreq(&ifmr, SIOCGIFMEDIA) == 0) {
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/* Get the name of the media word */
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modew = ifmr.ifm_current;
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strlcpy(net_media, get_media_mode_string(modew),
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sizeof net_media);
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/* and add any media options */
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sep = " mediaopt ";
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while ((media_opt = get_media_option_string(&modew)) != NULL) {
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strlcat(net_media, sep, sizeof net_media);
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strlcat(net_media, media_opt, sizeof net_media);
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sep = ",";
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}
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}
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}
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#ifndef INET6
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#define get_if6interface_info()
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#else
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static void
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get_if6interface_info(void)
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{
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char *textbuf, *t;
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int textsize;
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textsize = collect(T_OUTPUT, &textbuf,
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"/sbin/ifconfig %s inet6 2>/dev/null", net_dev);
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if (textsize >= 0) {
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char *p;
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(void)strtok(textbuf, "\n"); /* ignore first line */
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while ((t = strtok(NULL, "\n")) != NULL) {
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if (strncmp(t, "\tinet6 ", 7) != 0)
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continue;
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t += 7;
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if (strstr(t, "tentative") || strstr(t, "duplicated"))
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continue;
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if (strncmp(t, "fe80:", 5) == 0)
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continue;
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p = t;
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while (*p && *p != ' ' && *p != '\n')
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p++;
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*p = '\0';
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strlcpy(net_ip6, t, sizeof(net_ip6));
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break;
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}
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}
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free(textbuf);
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}
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#endif
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static void
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get_host_info(void)
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{
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char hostname[MAXHOSTNAMELEN + 1];
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char *dot;
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/* Check host (and domain?) name */
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if (gethostname(hostname, sizeof(hostname)) == 0 && hostname[0] != 0) {
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hostname[sizeof(hostname) - 1] = 0;
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/* check for a . */
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dot = strchr(hostname, '.');
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if (dot == NULL) {
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/* if not found its just a host, punt on domain */
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strlcpy(net_host, hostname, sizeof net_host);
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} else {
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/* split hostname into host/domain parts */
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*dot++ = 0;
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strlcpy(net_host, hostname, sizeof net_host);
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strlcpy(net_domain, dot, sizeof net_domain);
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}
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}
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}
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/*
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* recombine name parts split in get_host_info and config_network
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* (common code moved here from write_etc_hosts)
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*/
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static char *
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recombine_host_domain(void)
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{
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static char recombined[MAXHOSTNAMELEN + 1];
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int l = strlen(net_host) - strlen(net_domain);
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strlcpy(recombined, net_host, sizeof(recombined));
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if (l <= 0 ||
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net_host[l - 1] != '.' ||
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strcasecmp(net_domain, net_host + l) != 0) {
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/* net_host isn't an FQDN. */
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strlcat(recombined, ".", sizeof(recombined));
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strlcat(recombined, net_domain, sizeof(recombined));
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}
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return recombined;
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}
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#ifdef INET6
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static int
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is_v6kernel(void)
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{
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int s;
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s = socket(PF_INET6, SOCK_DGRAM, 0);
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if (s < 0)
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return 0;
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close(s);
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return 1;
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}
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/*
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* initialize as v6 client.
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* we are sure that we will never become router with boot floppy :-)
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* (include and use sysctl(8) if you are willing to)
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*/
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static void
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init_v6kernel(int autoconf)
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{
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int v;
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int mib[4] = {CTL_NET, PF_INET6, IPPROTO_IPV6, 0};
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mib[3] = IPV6CTL_FORWARDING;
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v = 0;
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if (sysctl(mib, 4, NULL, NULL, (void *)&v, sizeof(v)) < 0)
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; /* warn("sysctl(net.inet6.ip6.fowarding"); */
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mib[3] = IPV6CTL_ACCEPT_RTADV;
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v = autoconf ? 1 : 0;
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if (sysctl(mib, 4, NULL, NULL, (void *)&v, sizeof(v)) < 0)
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; /* warn("sysctl(net.inet6.ip6.accept_rtadv"); */
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}
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static int
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get_v6wait(void)
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{
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size_t len = sizeof(int);
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int v;
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int mib[4] = {CTL_NET, PF_INET6, IPPROTO_IPV6, IPV6CTL_DAD_COUNT};
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len = sizeof(v);
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if (sysctl(mib, 4, (void *)&v, &len, NULL, 0) < 0) {
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/* warn("sysctl(net.inet6.ip6.dadcount)"); */
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return 1; /* guess */
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}
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return v;
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}
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#endif
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/*
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* Get the information to configure the network, configure it and
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* make sure both the gateway and the name server are up.
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*/
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int
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config_network(void)
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{
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char *tp;
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char *defname;
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const char *prompt;
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char *textbuf;
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int octet0;
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int dhcp_config;
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int slip;
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int pid, status;
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char **ap, *slcmd[10], *in_buf;
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char buffer[STRSIZE];
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int l;
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char dhcp_host[STRSIZE];
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#ifdef INET6
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int v6config = 1;
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#endif
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FILE *f;
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time_t now;
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if (network_up)
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return (1);
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get_ifconfig_info();
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if (net_up != NULL) {
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/* XXX: some retry loops come here... */
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/* active interfaces found */
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msg_display(MSG_netup, net_up);
|
|
process_menu(MENU_yesno, NULL);
|
|
if (yesno)
|
|
return 1;
|
|
}
|
|
|
|
if (net_devices == NULL) {
|
|
/* No network interfaces found! */
|
|
msg_display(MSG_nonet);
|
|
process_menu(MENU_ok, NULL);
|
|
return (-1);
|
|
}
|
|
network_up = 1;
|
|
|
|
again:
|
|
tp = strchr(net_devices, ' ');
|
|
asprintf(&defname, "%.*s", (int)(tp - net_devices), net_devices);
|
|
for (prompt = MSG_asknetdev;; prompt = MSG_badnet) {
|
|
msg_prompt(prompt, defname, net_dev, sizeof net_dev - 1,
|
|
net_devices);
|
|
l = strlen(net_dev);
|
|
net_dev[l] = ' ';
|
|
net_dev[l + 1] = 0;
|
|
tp = strstr(net_devices, net_dev);
|
|
if (tp == NULL)
|
|
continue;
|
|
if (tp != net_devices && tp[-1] != ' ')
|
|
continue;
|
|
net_dev[l] = 0;
|
|
break;
|
|
}
|
|
free(defname);
|
|
|
|
slip = net_dev[0] == 's' && net_dev[1] == 'l' &&
|
|
isdigit((unsigned char)net_dev[2]);
|
|
|
|
if (slip)
|
|
dhcp_config = 0;
|
|
else {
|
|
/* Preload any defaults we can find */
|
|
get_ifinterface_info();
|
|
get_if6interface_info();
|
|
get_host_info();
|
|
|
|
/* domain and host */
|
|
msg_display(MSG_netinfo);
|
|
|
|
/* ethernet medium */
|
|
for (;;) {
|
|
msg_prompt_add(MSG_net_media, net_media, net_media,
|
|
sizeof net_media);
|
|
|
|
/*
|
|
* ifconfig does not allow media specifiers on
|
|
* IFM_MANUAL interfaces. Our UI gives no way
|
|
* to set an option back
|
|
* to null-string if it gets accidentally set.
|
|
* Check for plausible alternatives.
|
|
*/
|
|
if (strcmp(net_media, "<default>") == 0 ||
|
|
strcmp(net_media, "default") == 0 ||
|
|
strcmp(net_media, "<manual>") == 0 ||
|
|
strcmp(net_media, "manual") == 0 ||
|
|
strcmp(net_media, "<none>") == 0 ||
|
|
strcmp(net_media, "none") == 0 ||
|
|
strcmp(net_media, " ") == 0) {
|
|
*net_media = '\0';
|
|
}
|
|
|
|
if (*net_media == '\0')
|
|
break;
|
|
/*
|
|
* We must set the media type here - to give dhcp
|
|
* a chance
|
|
*/
|
|
if (run_program(0, "/sbin/ifconfig %s media %s",
|
|
net_dev, net_media) == 0)
|
|
break;
|
|
/* Failed to set - output the supported values */
|
|
if (collect(T_OUTPUT, &textbuf, "/sbin/ifconfig -m %s |"
|
|
"while IFS=; read line;"
|
|
" do [ \"$line\" = \"${line#*media}\" ] || "
|
|
"echo $line;"
|
|
" done", net_dev ) > 0)
|
|
msg_display(textbuf);
|
|
free(textbuf);
|
|
}
|
|
|
|
/* try a dhcp configuration */
|
|
dhcp_config = config_dhcp(net_dev);
|
|
if (dhcp_config) {
|
|
/* Get newly configured data off interface. */
|
|
get_ifinterface_info();
|
|
get_if6interface_info();
|
|
get_host_info();
|
|
|
|
net_dhcpconf |= DHCPCONF_IPADDR;
|
|
|
|
/*
|
|
* Extract default route from output of
|
|
* 'route -n show'
|
|
*/
|
|
if (collect(T_OUTPUT, &textbuf,
|
|
"/sbin/route -n show | "
|
|
"while read dest gateway flags;"
|
|
" do [ \"$dest\" = default ] && {"
|
|
" echo $gateway; break; };"
|
|
" done" ) > 0)
|
|
strlcpy(net_defroute, textbuf,
|
|
sizeof net_defroute);
|
|
free(textbuf);
|
|
|
|
/* pull nameserver info out of /etc/resolv.conf */
|
|
if (collect(T_OUTPUT, &textbuf,
|
|
"cat /etc/resolv.conf 2>/dev/null |"
|
|
" while read keyword address rest;"
|
|
" do [ \"$keyword\" = nameserver "
|
|
" -a \"${address#*:}\" = "
|
|
"\"${address}\" ] && {"
|
|
" echo $address; break; };"
|
|
" done" ) > 0)
|
|
strlcpy(net_namesvr, textbuf,
|
|
sizeof net_namesvr);
|
|
free(textbuf);
|
|
if (net_namesvr[0] != '\0')
|
|
net_dhcpconf |= DHCPCONF_NAMESVR;
|
|
|
|
/* pull domainname out of leases file */
|
|
get_dhcp_value(net_domain, sizeof(net_domain),
|
|
"domain-name");
|
|
if (net_domain[0] != '\0')
|
|
net_dhcpconf |= DHCPCONF_DOMAIN;
|
|
|
|
/* pull hostname out of leases file */
|
|
dhcp_host[0] = 0;
|
|
get_dhcp_value(dhcp_host, sizeof(dhcp_host),
|
|
"hostname");
|
|
if (dhcp_host[0] != '\0') {
|
|
net_dhcpconf |= DHCPCONF_HOST;
|
|
strlcpy(net_host, dhcp_host, sizeof net_host);
|
|
}
|
|
}
|
|
}
|
|
|
|
msg_prompt_add(MSG_net_domain, net_domain, net_domain,
|
|
sizeof net_domain);
|
|
msg_prompt_add(MSG_net_host, net_host, net_host, sizeof net_host);
|
|
|
|
if (!dhcp_config) {
|
|
/* Manually configure IPv4 */
|
|
msg_prompt_add(MSG_net_ip, net_ip, net_ip, sizeof net_ip);
|
|
if (slip)
|
|
msg_prompt_add(MSG_net_srv_ip, net_srv_ip, net_srv_ip,
|
|
sizeof net_srv_ip);
|
|
else {
|
|
/* We don't want netmasks for SLIP */
|
|
octet0 = atoi(net_ip);
|
|
if (!net_mask[0]) {
|
|
if (0 <= octet0 && octet0 <= 127)
|
|
strlcpy(net_mask, "0xff000000",
|
|
sizeof(net_mask));
|
|
else if (128 <= octet0 && octet0 <= 191)
|
|
strlcpy(net_mask, "0xffff0000",
|
|
sizeof(net_mask));
|
|
else if (192 <= octet0 && octet0 <= 223)
|
|
strlcpy(net_mask, "0xffffff00",
|
|
sizeof(net_mask));
|
|
}
|
|
msg_prompt_add(MSG_net_mask, net_mask, net_mask,
|
|
sizeof net_mask);
|
|
}
|
|
msg_prompt_add(MSG_net_defroute, net_defroute, net_defroute,
|
|
sizeof net_defroute);
|
|
}
|
|
|
|
if (!dhcp_config || net_namesvr[0] == 0)
|
|
msg_prompt_add(MSG_net_namesrv, net_namesvr, net_namesvr,
|
|
sizeof net_namesvr);
|
|
|
|
#ifdef INET6
|
|
/* IPv6 autoconfiguration */
|
|
if (!is_v6kernel())
|
|
v6config = 0;
|
|
else if (v6config) {
|
|
process_menu(MENU_noyes, deconst(MSG_Perform_IPv6_autoconfiguration));
|
|
v6config = yesno ? 1 : 0;
|
|
net_ip6conf |= yesno ? IP6CONF_AUTOHOST : 0;
|
|
}
|
|
|
|
if (v6config) {
|
|
process_menu(MENU_namesrv6, NULL);
|
|
if (!yesno)
|
|
msg_prompt_add(MSG_net_namesrv6, net_namesvr6,
|
|
net_namesvr6, sizeof net_namesvr6);
|
|
}
|
|
#endif
|
|
|
|
/* confirm the setting */
|
|
if (slip)
|
|
msg_display(MSG_netok_slip, net_domain, net_host, net_dev,
|
|
*net_ip == '\0' ? "<none>" : net_ip,
|
|
*net_srv_ip == '\0' ? "<none>" : net_srv_ip,
|
|
*net_mask == '\0' ? "<none>" : net_mask,
|
|
*net_namesvr == '\0' ? "<none>" : net_namesvr,
|
|
*net_defroute == '\0' ? "<none>" : net_defroute,
|
|
*net_media == '\0' ? "<default>" : net_media);
|
|
else
|
|
msg_display(MSG_netok, net_domain, net_host, net_dev,
|
|
*net_ip == '\0' ? "<none>" : net_ip,
|
|
*net_mask == '\0' ? "<none>" : net_mask,
|
|
*net_namesvr == '\0' ? "<none>" : net_namesvr,
|
|
*net_defroute == '\0' ? "<none>" : net_defroute,
|
|
*net_media == '\0' ? "<default>" : net_media);
|
|
#ifdef INET6
|
|
msg_display_add(MSG_netokv6,
|
|
!is_v6kernel() ? "<not supported>" :
|
|
(v6config ? "yes" : "no"),
|
|
*net_namesvr6 == '\0' ? "<none>" : net_namesvr6);
|
|
#endif
|
|
process_menu(MENU_yesno, deconst(MSG_netok_ok));
|
|
if (!yesno)
|
|
msg_display(MSG_netagain);
|
|
if (!yesno)
|
|
goto again;
|
|
|
|
/*
|
|
* we may want to perform checks against inconsistent configuration,
|
|
* like IPv4 DNS server without IPv4 configuration.
|
|
*/
|
|
|
|
/* Create /etc/resolv.conf if a nameserver was given */
|
|
if (net_namesvr[0] != '\0'
|
|
#ifdef INET6
|
|
|| net_namesvr6[0] != '\0'
|
|
#endif
|
|
) {
|
|
f = fopen("/etc/resolv.conf", "w");
|
|
if (f == NULL) {
|
|
if (logging)
|
|
(void)fprintf(logfp,
|
|
"%s", msg_string(MSG_resolv));
|
|
(void)fprintf(stderr, "%s", msg_string(MSG_resolv));
|
|
exit(1);
|
|
}
|
|
scripting_fprintf(NULL, "cat <<EOF >/etc/resolv.conf\n");
|
|
time(&now);
|
|
/* NB: ctime() returns a string ending in '\n' */
|
|
scripting_fprintf(f, ";\n; BIND data file\n; %s %s;\n",
|
|
"Created by NetBSD sysinst on", ctime(&now));
|
|
if (net_domain[0] != '\0')
|
|
scripting_fprintf(f, "search %s\n", net_domain);
|
|
if (net_namesvr[0] != '\0')
|
|
scripting_fprintf(f, "nameserver %s\n", net_namesvr);
|
|
#ifdef INET6
|
|
if (net_namesvr6[0] != '\0')
|
|
scripting_fprintf(f, "nameserver %s\n", net_namesvr6);
|
|
#endif
|
|
scripting_fprintf(NULL, "EOF\n");
|
|
fflush(NULL);
|
|
fclose(f);
|
|
}
|
|
|
|
run_program(0, "/sbin/ifconfig lo0 127.0.0.1");
|
|
|
|
#ifdef INET6
|
|
if (v6config) {
|
|
init_v6kernel(1);
|
|
run_program(0, "/sbin/ifconfig %s up", net_dev);
|
|
sleep(get_v6wait() + 1);
|
|
run_program(RUN_DISPLAY, "/sbin/rtsol -D %s", net_dev);
|
|
sleep(get_v6wait() + 1);
|
|
}
|
|
#endif
|
|
|
|
if (net_ip[0] != '\0') {
|
|
if (slip) {
|
|
/* XXX: needs 'ifconfig sl0 create' much earlier */
|
|
/* Set SLIP interface UP */
|
|
run_program(0, "/sbin/ifconfig %s inet %s %s up",
|
|
net_dev, net_ip, net_srv_ip);
|
|
strcpy(sl_flags, "-s 115200 -l /dev/tty00");
|
|
msg_prompt_win(MSG_slattach, -1, 12, 70, 0,
|
|
sl_flags, sl_flags, 255);
|
|
|
|
/* XXX: wtf isn't run_program() used here? */
|
|
pid = fork();
|
|
if (pid == 0) {
|
|
strcpy(buffer, "/sbin/slattach ");
|
|
strcat(buffer, sl_flags);
|
|
in_buf = buffer;
|
|
|
|
for (ap = slcmd; (*ap = strsep(&in_buf, " ")) != NULL;)
|
|
if (**ap != '\0')
|
|
++ap;
|
|
|
|
execvp(slcmd[0], slcmd);
|
|
} else
|
|
wait4(pid, &status, WNOHANG, 0);
|
|
} else {
|
|
if (net_mask[0] != '\0') {
|
|
run_program(0, "/sbin/ifconfig %s inet %s netmask %s",
|
|
net_dev, net_ip, net_mask);
|
|
} else {
|
|
run_program(0, "/sbin/ifconfig %s inet %s",
|
|
net_dev, net_ip);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Set host name */
|
|
if (net_host[0] != '\0')
|
|
sethostname(net_host, strlen(net_host));
|
|
|
|
/* Set a default route if one was given */
|
|
if (net_defroute[0] != '\0') {
|
|
run_program(RUN_DISPLAY | RUN_PROGRESS,
|
|
"/sbin/route -n flush -inet");
|
|
run_program(RUN_DISPLAY | RUN_PROGRESS,
|
|
"/sbin/route -n add default %s", net_defroute);
|
|
}
|
|
|
|
/*
|
|
* wait a couple of seconds for the interface to go live.
|
|
*/
|
|
msg_display_add(MSG_wait_network);
|
|
sleep(5);
|
|
|
|
/*
|
|
* ping should be verbose, so users can see the cause
|
|
* of a network failure.
|
|
*/
|
|
|
|
#ifdef INET6
|
|
if (v6config && network_up) {
|
|
network_up = !run_program(RUN_DISPLAY | RUN_PROGRESS,
|
|
"/sbin/ping6 -v -c 3 -n -I %s ff02::2", net_dev);
|
|
|
|
if (net_namesvr6[0] != '\0')
|
|
network_up = !run_program(RUN_DISPLAY | RUN_PROGRESS,
|
|
"/sbin/ping6 -v -c 3 -n %s", net_namesvr6);
|
|
}
|
|
#endif
|
|
|
|
if (net_namesvr[0] != '\0' && network_up)
|
|
network_up = !run_program(RUN_DISPLAY | RUN_PROGRESS,
|
|
"/sbin/ping -v -c 5 -w 5 -o -n %s", net_namesvr);
|
|
|
|
if (net_defroute[0] != '\0' && network_up)
|
|
network_up = !run_program(RUN_DISPLAY | RUN_PROGRESS,
|
|
"/sbin/ping -v -c 5 -w 5 -o -n %s", net_defroute);
|
|
fflush(NULL);
|
|
|
|
return network_up;
|
|
}
|
|
|
|
static int
|
|
ftp_fetch(const char *set_name)
|
|
{
|
|
const char *ftp_opt;
|
|
char ftp_user_encoded[STRSIZE];
|
|
char ftp_dir_encoded[STRSIZE];
|
|
char *cp;
|
|
int rval;
|
|
|
|
/*
|
|
* Invoke ftp to fetch the file.
|
|
*
|
|
* ftp.pass is quite likely to contain unsafe characters
|
|
* that need to be encoded in the URL (for example,
|
|
* "@", ":" and "/" need quoting). Let's be
|
|
* paranoid and also encode ftp.user and ftp.dir. (For
|
|
* example, ftp.dir could easily contain '~', which is
|
|
* unsafe by a strict reading of RFC 1738).
|
|
*/
|
|
if (strcmp("ftp", ftp.user) == 0 && ftp.pass[0] == 0) {
|
|
/* do anon ftp */
|
|
ftp_opt = "-a ";
|
|
ftp_user_encoded[0] = 0;
|
|
} else {
|
|
ftp_opt = "";
|
|
cp = url_encode(ftp_user_encoded, ftp.user,
|
|
ftp_user_encoded + sizeof ftp_user_encoded - 1,
|
|
RFC1738_SAFE_LESS_SHELL, 0);
|
|
*cp++ = ':';
|
|
cp = url_encode(cp, ftp.pass,
|
|
ftp_user_encoded + sizeof ftp_user_encoded - 1,
|
|
NULL, 0);
|
|
*cp++ = '@';
|
|
*cp = 0;
|
|
}
|
|
|
|
cp = url_encode(ftp_dir_encoded, ftp.dir,
|
|
ftp_dir_encoded + sizeof ftp_dir_encoded - 1,
|
|
RFC1738_SAFE_LESS_SHELL_PLUS_SLASH, 1);
|
|
if (set_dir[0] != '/')
|
|
*cp++ = '/';
|
|
url_encode(cp, set_dir,
|
|
ftp_dir_encoded + sizeof ftp_dir_encoded,
|
|
RFC1738_SAFE_LESS_SHELL_PLUS_SLASH, 0);
|
|
|
|
rval = run_program(RUN_DISPLAY | RUN_PROGRESS | RUN_XFER_DIR,
|
|
"/usr/bin/ftp %s%s://%s%s/%s/%s%s",
|
|
ftp_opt, ftp.xfer_type, ftp_user_encoded, ftp.host,
|
|
ftp_dir_encoded, set_name, dist_postfix);
|
|
|
|
return rval ? SET_RETRY : SET_OK;
|
|
}
|
|
|
|
static int
|
|
do_config_network(void)
|
|
{
|
|
int ret;
|
|
|
|
while ((ret = config_network()) <= 0) {
|
|
if (ret < 0)
|
|
return (-1);
|
|
msg_display(MSG_netnotup);
|
|
process_menu(MENU_yesno, NULL);
|
|
if (!yesno) {
|
|
msg_display(MSG_netnotup_continueanyway);
|
|
process_menu(MENU_yesno, NULL);
|
|
if (!yesno)
|
|
return -1;
|
|
network_up = 1;
|
|
break;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
get_via_ftp(const char *xfer_type)
|
|
{
|
|
|
|
if (do_config_network() != 0)
|
|
return SET_RETRY;
|
|
|
|
process_menu(MENU_ftpsource, deconst(xfer_type));
|
|
|
|
/* We'll fetch each file just before installing it */
|
|
fetch_fn = ftp_fetch;
|
|
ftp.xfer_type = xfer_type;
|
|
snprintf(ext_dir, sizeof ext_dir, "%s/%s", target_prefix(),
|
|
xfer_dir + (*xfer_dir == '/'));
|
|
|
|
return SET_OK;
|
|
}
|
|
|
|
int
|
|
get_via_nfs(void)
|
|
{
|
|
|
|
if (do_config_network() != 0)
|
|
return SET_RETRY;
|
|
|
|
/* Get server and filepath */
|
|
process_menu(MENU_nfssource, NULL);
|
|
|
|
/* Mount it */
|
|
if (run_program(0, "/sbin/mount -r -o -2,-i,-r=1024 -t nfs %s:%s /mnt2",
|
|
nfs_host, nfs_dir))
|
|
return SET_RETRY;
|
|
|
|
mnt2_mounted = 1;
|
|
|
|
snprintf(ext_dir, sizeof ext_dir, "/mnt2/%s", set_dir);
|
|
|
|
/* return location, don't clean... */
|
|
return SET_OK;
|
|
}
|
|
|
|
/*
|
|
* write the new contents of /etc/hosts to the specified file
|
|
*/
|
|
static void
|
|
write_etc_hosts(FILE *f)
|
|
{
|
|
scripting_fprintf(f, "#\n");
|
|
scripting_fprintf(f, "# Added by NetBSD sysinst\n");
|
|
scripting_fprintf(f, "#\n");
|
|
|
|
if (net_domain[0] != '\0')
|
|
scripting_fprintf(f, "127.0.0.1 localhost.%s\n", net_domain);
|
|
|
|
scripting_fprintf(f, "%s\t", net_ip);
|
|
if (net_domain[0] != '\0')
|
|
scripting_fprintf(f, "%s ", recombine_host_domain());
|
|
scripting_fprintf(f, "%s\n", net_host);
|
|
}
|
|
|
|
/*
|
|
* Write the network config info the user entered via menus into the
|
|
* config files in the target disk. Be careful not to lose any
|
|
* information we don't immediately add back, in case the install
|
|
* target is the currently-active root.
|
|
*/
|
|
void
|
|
mnt_net_config(void)
|
|
{
|
|
char ifconfig_fn[STRSIZE];
|
|
FILE *ifconf = NULL;
|
|
|
|
if (!network_up)
|
|
return;
|
|
process_menu(MENU_yesno, deconst(MSG_mntnetconfig));
|
|
if (!yesno)
|
|
return;
|
|
|
|
/* Write hostname to /etc/rc.conf */
|
|
if ((net_dhcpconf & DHCPCONF_HOST) == 0)
|
|
add_rc_conf("hostname=%s\n", recombine_host_domain());
|
|
|
|
/* If not running in target, copy resolv.conf there. */
|
|
if ((net_dhcpconf & DHCPCONF_NAMESVR) == 0) {
|
|
#ifndef INET6
|
|
if (net_namesvr[0] != '\0')
|
|
dup_file_into_target("/etc/resolv.conf");
|
|
#else
|
|
/*
|
|
* not sure if it is a good idea, to allow dhcp config to
|
|
* override IPv6 configuration
|
|
*/
|
|
if (net_namesvr[0] != '\0' || net_namesvr6[0] != '\0')
|
|
dup_file_into_target("/etc/resolv.conf");
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* bring the interface up, it will be necessary for IPv6, and
|
|
* it won't make trouble with IPv4 case either
|
|
*/
|
|
snprintf(ifconfig_fn, sizeof ifconfig_fn, "/etc/ifconfig.%s", net_dev);
|
|
ifconf = target_fopen(ifconfig_fn, "w");
|
|
if (ifconf != NULL) {
|
|
scripting_fprintf(NULL, "cat <<EOF >>%s%s\n",
|
|
target_prefix(), ifconfig_fn);
|
|
scripting_fprintf(ifconf, "up\n");
|
|
scripting_fprintf(NULL, "EOF\n");
|
|
}
|
|
|
|
if ((net_dhcpconf & DHCPCONF_IPADDR) == 0) {
|
|
FILE *hosts;
|
|
|
|
/* Write IPaddr and netmask to /etc/ifconfig.if[0-9] */
|
|
if (ifconf != NULL) {
|
|
scripting_fprintf(NULL, "cat <<EOF >>%s%s\n",
|
|
target_prefix(), ifconfig_fn);
|
|
if (*net_media != '\0')
|
|
scripting_fprintf(ifconf,
|
|
"%s netmask %s media %s\n",
|
|
net_ip, net_mask, net_media);
|
|
else
|
|
scripting_fprintf(ifconf, "%s netmask %s\n",
|
|
net_ip, net_mask);
|
|
scripting_fprintf(NULL, "EOF\n");
|
|
}
|
|
|
|
/*
|
|
* Add IPaddr/hostname to /etc/hosts.
|
|
* Be careful not to clobber any existing contents.
|
|
* Relies on ordered search of /etc/hosts. XXX YP?
|
|
*/
|
|
hosts = target_fopen("/etc/hosts", "a");
|
|
if (hosts != 0) {
|
|
scripting_fprintf(NULL, "cat <<EOF >>%s/etc/hosts\n",
|
|
target_prefix());
|
|
write_etc_hosts(hosts);
|
|
(void)fclose(hosts);
|
|
scripting_fprintf(NULL, "EOF\n");
|
|
|
|
fclose(hosts);
|
|
}
|
|
|
|
add_rc_conf("defaultroute=\"%s\"\n", net_defroute);
|
|
} else {
|
|
add_rc_conf("dhclient=YES\n");
|
|
add_rc_conf("dhclient_flags=\"%s\"\n", net_dev);
|
|
}
|
|
|
|
#ifdef INET6
|
|
if ((net_ip6conf & IP6CONF_AUTOHOST) != 0) {
|
|
add_rc_conf("ip6mode=autohost\n");
|
|
if (ifconf != NULL) {
|
|
scripting_fprintf(NULL, "cat <<EOF >>%s%s\n",
|
|
target_prefix(), ifconfig_fn);
|
|
scripting_fprintf(ifconf, "!rtsol $int\n");
|
|
scripting_fprintf(NULL, "EOF\n");
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (ifconf)
|
|
fclose(ifconf);
|
|
|
|
fflush(NULL);
|
|
}
|
|
|
|
int
|
|
config_dhcp(char *inter)
|
|
{
|
|
int dhcpautoconf;
|
|
int result;
|
|
char *textbuf;
|
|
int pid;
|
|
|
|
/* check if dhclient is running, if so, kill it */
|
|
result = collect(T_FILE, &textbuf, "/tmp/dhclient.pid");
|
|
if (result >= 0) {
|
|
pid = atoi(textbuf);
|
|
if (pid > 0) {
|
|
kill(pid, 15);
|
|
sleep(1);
|
|
kill(pid, 9);
|
|
}
|
|
}
|
|
free(textbuf);
|
|
|
|
if (!file_mode_match(DHCLIENT_EX, S_IFREG))
|
|
return 0;
|
|
process_menu(MENU_yesno, deconst(MSG_Perform_DHCP_autoconfiguration));
|
|
if (yesno) {
|
|
/* spawn off dhclient and wait for parent to exit */
|
|
dhcpautoconf = run_program(RUN_DISPLAY | RUN_PROGRESS,
|
|
"%s -q -pf /tmp/dhclnt.pid -lf /tmp/dhclient.leases %s",
|
|
DHCLIENT_EX, inter);
|
|
return dhcpautoconf ? 0 : 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
get_dhcp_value(char *targ, size_t l, const char *line)
|
|
{
|
|
int textsize;
|
|
char *textbuf;
|
|
char *t;
|
|
char *walkp;
|
|
|
|
textsize = collect(T_FILE, &textbuf, "/tmp/dhclient.leases");
|
|
if (textsize < 0) {
|
|
if (logging)
|
|
(void)fprintf(logfp,
|
|
"Could not open file /tmp/dhclient.leases.\n");
|
|
(void)fprintf(stderr, "Could not open /tmp/dhclient.leases\n");
|
|
/* not fatal, just assume value not found */
|
|
}
|
|
if (textsize >= 0) {
|
|
(void)strtok(textbuf, " \t\n"); /* jump past 'lease' */
|
|
while ((t = strtok(NULL, " \t\n")) != NULL) {
|
|
if (strcmp(t, line) == 0) {
|
|
t = strtok(NULL, " \t\n");
|
|
/* found the tag, extract the value */
|
|
/* last char should be a ';' */
|
|
walkp = strrchr(t, ';');
|
|
if (walkp != NULL) {
|
|
*walkp = '\0';
|
|
}
|
|
/* strip any " from the string */
|
|
walkp = strrchr(t, '"');
|
|
if (walkp != NULL) {
|
|
*walkp = '\0';
|
|
t++;
|
|
}
|
|
strlcpy(targ, t, l);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
free(textbuf);
|
|
return;
|
|
}
|