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Don't login twice when using passwdauth
Suggested by: Peter Childs <pjchilds@imforei.apana.org.au> Merge the whole module into a few lines in pap.c
This commit is contained in:
Brian Somers
parent
91f7577b37
commit
f0d4fed251
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=29895
@ -1,10 +1,10 @@
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# $Id: Makefile,v 1.24 1997/09/04 00:38:17 brian Exp $
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# $Id: Makefile,v 1.25 1997/09/25 00:52:31 brian Exp $
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PROG= ppp
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SRCS= alias_cmd.c arp.c async.c auth.c ccp.c chap.c chat.c command.c \
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filter.c fsm.c hdlc.c ip.c ipcp.c lcp.c loadalias.c log.c lqr.c \
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main.c mbuf.c modem.c os.c pap.c passwdauth.c pred.c route.c \
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server.c sig.c slcompress.c systems.c timer.c vars.c vjcomp.c
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main.c mbuf.c modem.c os.c pap.c pred.c route.c server.c sig.c \
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slcompress.c systems.c timer.c vars.c vjcomp.c
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CFLAGS+=-Wall
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LDADD+= -lmd -lcrypt -lutil
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DPADD+= ${LIBMD} ${LIBCRYPT} ${LIBUTIL}
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@ -18,12 +18,13 @@
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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* $Id: pap.c,v 1.14 1997/08/25 00:29:24 brian Exp $
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* $Id: pap.c,v 1.15 1997/09/22 23:59:15 brian Exp $
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*
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* TODO:
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*/
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#include <time.h>
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#include <utmp.h>
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#include <pwd.h>
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#include "fsm.h"
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#include "lcp.h"
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#include "pap.h"
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@ -39,10 +40,6 @@
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#include "libutil.h"
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#endif
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#ifndef NOPASSWDAUTH
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#include "passwdauth.h"
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#endif
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static char *papcodes[] = {
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"???", "REQUEST", "ACK", "NAK"
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};
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@ -119,8 +116,14 @@ PapValidate(u_char * name, u_char * key)
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#ifndef NOPASSWDAUTH
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if (Enabled(ConfPasswdAuth)) {
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LogPrintf(LogLCP, "PasswdAuth enabled - calling\n");
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return PasswdAuth(name, key);
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struct passwd *pwd;
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int result;
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LogPrintf(LogLCP, "Using PasswdAuth\n");
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result = (pwd = getpwnam(name)) &&
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!strcmp(crypt(key, pwd->pw_passwd), pwd->pw_passwd);
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endpwent();
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return result;
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}
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#endif
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@ -1,109 +0,0 @@
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/*
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*
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* passwdauth.c - pjchilds@imforei.apana.org.au
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*
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* authenticate user via the password file
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that the above copyright notice and this paragraph are
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* duplicated in all such forms and that any documentation,
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* advertising materials, and other materials related to such
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* distribution and use acknowledge that the software was developed
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* by the Peter Childs. The name of the author may not be used to
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* endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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*/
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#include <sys/types.h>
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#include <utmp.h>
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#include <time.h>
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#ifdef __OpenBSD__
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#include <util.h>
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#else
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#include <libutil.h>
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#endif
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#include <pwd.h>
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#include "fsm.h"
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#include "passwdauth.h"
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int
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PasswdAuth(char *name, char *key)
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{
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static int logged_in = 0;
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struct passwd *pwd;
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char *salt, *ep;
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struct utmp utmp;
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LogPrintf(LogDEBUG, "PasswdAuth: Called with name %s, key %s\n", name, key);
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if ((pwd = getpwnam(name)))
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salt = pwd->pw_passwd;
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else {
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endpwent();
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LogPrintf(LogLCP, "PasswdAuth - user (%s) not in passwd file\n", name);
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return 0; /* false - failed to authenticate (password
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* not in file) */
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}
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#ifdef LOCALHACK
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/*
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* All our PPP usernames start with 'P' so i check that here... if you
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* don't do this i suggest all your PPP users be members of a group and you
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* check the guid
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*/
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if (name[0] != 'P') {
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LogPrintf(LogLCP, "PasswdAuth - user (%s) not a PPP user\n", name);
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endpwent();
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return 0;
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}
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#endif /* LOCALHACK */
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ep = crypt(key, salt);
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/* strcmp returns 0 if same */
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if (strcmp(ep, pwd->pw_passwd) != 0) {
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LogPrintf(LogLCP, "PasswdAuth - user (%s,%s) authentication failed\n",
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name, key);
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endpwent();
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return 0; /* false - failed to authenticate (didn't
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* match up) */
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}
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/*
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* now we log them in... we have a static login flag so we don't do it
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* twice :)
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*/
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if (!logged_in) {
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(void) time(&utmp.ut_time);
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(void) strncpy(utmp.ut_name, name, sizeof(utmp.ut_name));
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/*
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* if the first three chacters are "pap" trim them off before doing utmp
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* entry (see sample.ppp-pap-dialup
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*/
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if (strncmp("pap", dstsystem, 3) == 0)
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(void) strncpy(utmp.ut_line, (char *) (dstsystem + 3), sizeof(utmp.ut_line));
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else
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(void) strncpy(utmp.ut_line, dstsystem, sizeof(utmp.ut_line));
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(void) strncpy(utmp.ut_host, "auto-ppp", sizeof(utmp.ut_host));
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login(&utmp);
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(void) setlogin(pwd->pw_name);
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LogPrintf(LogLCP, "PasswdAuth has logged in user %s\n", name);
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logged_in = 1;
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}
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endpwent();
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return 1;
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}
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@ -1,11 +0,0 @@
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/*
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* passwdauth.h
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*
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*/
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#ifndef _PASSWDAUTH_H_
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#define _PASSWDAUTH_H_
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extern int PasswdAuth(char *, char *);
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#endif
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