New upstream version 0.76

1 files changed, 0 insertions, 497 deletions

diff --git a/modules/pam_access/pam_access.c b/modules/pam_access/pam_access.c
deleted file mode 100644
index 4005c93b..00000000
--- a/modules/pam_access/pam_access.c
+++ /dev/null
@@ -1,497 +0,0 @@
-/* pam_access module */
-
-/*
- * Written by Alexei Nogin <alexei@nogin.dnttm.ru> 1997/06/15
- * (I took login_access from logdaemon-5.6 and converted it to PAM
- * using parts of pam_time code.)
- *
- ************************************************************************ 
- * Copyright message from logdaemon-5.6 (original file name DISCLAIMER)
- ************************************************************************ 
- * Copyright 1995 by Wietse Venema. All rights reserved. Individual files 
- * may be covered by other copyrights (as noted in the file itself.) 
- * 
- * This material was originally written and compiled by Wietse Venema at 
- * Eindhoven University of Technology, The Netherlands, in 1990, 1991, 
- * 1992, 1993, 1994 and 1995. 
- * 
- * Redistribution and use in source and binary forms are permitted 
- * provided that this entire copyright notice is duplicated in all such 
- * copies. 
- * 
- * This software is provided "as is" and without any expressed or implied 
- * warranties, including, without limitation, the implied warranties of 
- * merchantibility and fitness for any particular purpose. 
- *************************************************************************
- */
-
-#include <security/_pam_aconf.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include <stdarg.h>
-#include <syslog.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <pwd.h>
-#include <grp.h>
-#include <errno.h>
-#include <ctype.h>
-#include <sys/utsname.h>
-
-#ifndef BROKEN_NETWORK_MATCH
-# include <netdb.h>
-# include <sys/socket.h>
-#endif
-
-/*
- * here, we make definitions for the externally accessible functions
- * in this file (these definitions are required for static modules
- * but strongly encouraged generally) they are used to instruct the
- * modules include file to define their prototypes.
- */
-
-#define PAM_SM_ACCOUNT
-
-#include <security/_pam_macros.h>
-#include <security/pam_modules.h>
-
-int strcasecmp(const char *s1, const char *s2);
-
-/* login_access.c from logdaemon-5.6 with several changes by A.Nogin: */
-
- /*
-  * This module implements a simple but effective form of login access
-  * control based on login names and on host (or domain) names, internet
-  * addresses (or network numbers), or on terminal line names in case of
-  * non-networked logins. Diagnostics are reported through syslog(3).
-  * 
-  * Author: Wietse Venema, Eindhoven University of Technology, The Netherlands.
-  */
-
-#if !defined(MAXHOSTNAMELEN) || (MAXHOSTNAMELEN < 64)
-#undef MAXHOSTNAMELEN
-#define MAXHOSTNAMELEN 256
-#endif
-
-#ifdef DEFAULT_CONF_FILE
-# define PAM_ACCESS_CONFIG DEFAULT_CONF_FILE
-#else
-# define PAM_ACCESS_CONFIG "/etc/security/access.conf"
-#endif
-
- /* Delimiters for fields and for lists of users, ttys or hosts. */
-
-static const char *fs = ":";			/* field separator */
-static const char sep[] = ", \t";		/* list-element separator */
-
- /* Constants to be used in assignments only, not in comparisons... */
-
-#define YES             1
-#define NO              0
-
- /*
-  * A structure to bundle up all login-related information to keep the
-  * functional interfaces as generic as possible.
-  */
-struct login_info {
-    struct passwd *user;
-    char   *from;
-    const char *config_file;
-    const char *service;
-};
-
-/* --- static functions for checking whether the user should be let in --- */
-
-static void _log_err(const char *format, ... )
-{
-    va_list args;
-
-    va_start(args, format);
-    openlog("pam_access", LOG_CONS|LOG_PID, LOG_AUTH);
-    vsyslog(LOG_ERR, format, args);
-    va_end(args);
-    closelog();
-}
-
-/* Parse module config arguments */
-
-static int parse_args(struct login_info *loginfo, int argc, const char **argv)
-{
-    int i;
-
-    for (i=0; i<argc; ++i) {
-	if (!strncmp("fieldsep=", argv[i], 9)) {
-
-	    /* the admin wants to override the default field separators */
-	    fs = argv[i]+9;
-
-	} else if (!strncmp("accessfile=", argv[i], 11)) {
-	    FILE *fp = fopen(11 + argv[i], "r");
-
-	    if (fp) {
-		loginfo->config_file = 11 + argv[i];
-		fclose(fp);
-	    } else {
-		_log_err("for service [%s] failed to open accessfile=[%s]"
-			 , loginfo->service, 11 + argv[i]);
-		return 0;
-	    }
-	    
-	} else {
-	    _log_err("unrecognized option [%s]", argv[i]);
-	}
-    }
-    
-    return 1;  /* OK */
-}
-
-typedef int match_func (char *, struct login_info *); 
-
-static int list_match (char *, struct login_info *,
-		             match_func *);
-static int user_match (char *, struct login_info *);
-static int from_match (char *, struct login_info *);
-static int string_match (char *, char *);
-
-/* login_access - match username/group and host/tty with access control file */
-
-static int login_access(struct login_info *item)
-{
-    FILE   *fp;
-    char    line[BUFSIZ];
-    char   *perm;		/* becomes permission field */
-    char   *users;		/* becomes list of login names */
-    char   *froms;		/* becomes list of terminals or hosts */
-    int     match = NO;
-    int     end;
-    int     lineno = 0;		/* for diagnostics */
-
-    /*
-     * Process the table one line at a time and stop at the first match.
-     * Blank lines and lines that begin with a '#' character are ignored.
-     * Non-comment lines are broken at the ':' character. All fields are
-     * mandatory. The first field should be a "+" or "-" character. A
-     * non-existing table means no access control.
-     */
-
-    if ((fp = fopen(item->config_file, "r"))!=NULL) {
-	while (!match && fgets(line, sizeof(line), fp)) {
-	    lineno++;
-	    if (line[end = strlen(line) - 1] != '\n') {
-		_log_err("%s: line %d: missing newline or line too long",
-		       item->config_file, lineno);
-		continue;
-	    }
-	    if (line[0] == '#')
-		continue;			/* comment line */
-	    while (end > 0 && isspace(line[end - 1]))
-		end--;
-	    line[end] = 0;			/* strip trailing whitespace */
-	    if (line[0] == 0)			/* skip blank lines */
-		continue;
-	    if (!(perm = strtok(line, fs))
-		|| !(users = strtok((char *) 0, fs))
-		|| !(froms = strtok((char *) 0, fs))
-		|| strtok((char *) 0, fs)) {
-		_log_err("%s: line %d: bad field count",
-			 item->config_file, lineno);
-		continue;
-	    }
-	    if (perm[0] != '+' && perm[0] != '-') {
-		_log_err("%s: line %d: bad first field",
-			 item->config_file, lineno);
-		continue;
-	    }
-	    match = (list_match(froms, item, from_match)
-		     && list_match(users, item, user_match));
-	}
-	(void) fclose(fp);
-    } else if (errno != ENOENT) {
-	_log_err("cannot open %s: %m", item->config_file);
-    }
-    return (match == 0 || (line[0] == '+'));
-}
-
-/* list_match - match an item against a list of tokens with exceptions */
-
-static int list_match(char *list, struct login_info *item, match_func *match_fn)
-{
-    char   *tok;
-    int     match = NO;
-
-    /*
-     * Process tokens one at a time. We have exhausted all possible matches
-     * when we reach an "EXCEPT" token or the end of the list. If we do find
-     * a match, look for an "EXCEPT" list and recurse to determine whether
-     * the match is affected by any exceptions.
-     */
-
-    for (tok = strtok(list, sep); tok != 0; tok = strtok((char *) 0, sep)) {
-	if (strcasecmp(tok, "EXCEPT") == 0)	/* EXCEPT: give up */
-	    break;
-	if ((match = (*match_fn) (tok, item)))	/* YES */
-	    break;
-    }
-    /* Process exceptions to matches. */
-
-    if (match != NO) {
-	while ((tok = strtok((char *) 0, sep)) && strcasecmp(tok, "EXCEPT"))
-	     /* VOID */ ;
-	if (tok == 0 || list_match((char *) 0, item, match_fn) == NO)
-	    return (match);
-    }
-    return (NO);
-}
-
-/* myhostname - figure out local machine name */
-
-static char * myhostname(void)
-{
-    static char name[MAXHOSTNAMELEN + 1];
-
-    gethostname(name, MAXHOSTNAMELEN);
-    name[MAXHOSTNAMELEN] = 0;
-    return (name);
-}
-
-/* netgroup_match - match group against machine or user */
-
-static int netgroup_match(char *group, char *machine, char *user)
-{
-#ifdef NIS
-    static char *mydomain = 0;
-
-    if (mydomain == 0)
-	yp_get_default_domain(&mydomain);
-    return (innetgr(group, machine, user, mydomain));
-#else
-    _log_err("NIS netgroup support not configured");
-    return (NO);
-#endif
-}
-
-/* user_match - match a username against one token */
-
-static int user_match(char *tok, struct login_info *item)
-{
-    char   *string = item->user->pw_name;
-    struct login_info fake_item;
-    struct group *group;
-    int     i;
-    char   *at;
-
-    /*
-     * If a token has the magic value "ALL" the match always succeeds.
-     * Otherwise, return YES if the token fully matches the username, if the
-     * token is a group that contains the username, or if the token is the
-     * name of the user's primary group.
-     */
-
-    if ((at = strchr(tok + 1, '@')) != 0) {	/* split user@host pattern */
-	*at = 0;
-	fake_item.from = myhostname();
-	return (user_match(tok, item) && from_match(at + 1, &fake_item));
-    } else if (tok[0] == '@') {			/* netgroup */
-	return (netgroup_match(tok + 1, (char *) 0, string));
-    } else if (string_match(tok, string)) {	/* ALL or exact match */
-	return (YES);
-    } else if ((group = getgrnam(tok))) {	/* try group membership */
-	if (item->user->pw_gid == group->gr_gid)
-	    return (YES);
-	for (i = 0; group->gr_mem[i]; i++)
-	    if (strcasecmp(string, group->gr_mem[i]) == 0)
-		return (YES);
-    }
-    return (NO);
-}
-
-/* from_match - match a host or tty against a list of tokens */
-
-static int from_match(char *tok, struct login_info *item)
-{
-    char   *string = item->from;
-    int     tok_len;
-    int     str_len;
-
-    /*
-     * If a token has the magic value "ALL" the match always succeeds. Return
-     * YES if the token fully matches the string. If the token is a domain
-     * name, return YES if it matches the last fields of the string. If the
-     * token has the magic value "LOCAL", return YES if the string does not
-     * contain a "." character. If the token is a network number, return YES
-     * if it matches the head of the string.
-     */
-
-    if (tok[0] == '@') {			/* netgroup */
-	return (netgroup_match(tok + 1, string, (char *) 0));
-    } else if (string_match(tok, string)) {	/* ALL or exact match */
-	return (YES);
-    } else if (tok[0] == '.') {			/* domain: match last fields */
-	if ((str_len = strlen(string)) > (tok_len = strlen(tok))
-	    && strcasecmp(tok, string + str_len - tok_len) == 0)
-	    return (YES);
-    } else if (strcasecmp(tok, "LOCAL") == 0) {	/* local: no dots */
-	if (strchr(string, '.') == 0)
-	    return (YES);
-#ifdef BROKEN_NETWORK_MATCH
-    } else if (tok[(tok_len = strlen(tok)) - 1] == '.'	/* network */
-	       && strncmp(tok, string, tok_len) == 0) {
-	return (YES);
-#else /*  BROKEN_NETWORK_MATCH */
-    } else if (tok[(tok_len = strlen(tok)) - 1] == '.') {
-        /*
-           The code below does a more correct check if the address specified
-           by "string" starts from "tok".
-                               1998/01/27  Andrey V. Savochkin <saw@msu.ru>
-         */
-
-        struct hostent *h;
-        char hn[3+1+3+1+3+1+3+1+1];
-        int r;
-
-        h = gethostbyname(string);
-        if (h == NULL)
-	    return (NO);
-        if (h->h_addrtype != AF_INET)
-	    return (NO);
-        if (h->h_length != 4)
-	    return (NO); /* only IPv4 addresses (SAW) */
-        r = snprintf(hn, sizeof(hn), "%u.%u.%u.%u.",
-		     (unsigned char)h->h_addr[0], (unsigned char)h->h_addr[1],
-		     (unsigned char)h->h_addr[2], (unsigned char)h->h_addr[3]);
-        if (r < 0 || r >= sizeof(hn))
-	    return (NO);
-        if (!strncmp(tok, hn, tok_len))
-	    return (YES);
-#endif /*  BROKEN_NETWORK_MATCH */
-    }
-    return (NO);
-}
-
-/* string_match - match a string against one token */
-
-static int string_match(char *tok, char *string)
-{
-
-    /*
-     * If the token has the magic value "ALL" the match always succeeds.
-     * Otherwise, return YES if the token fully matches the string.
-     */
-
-    if (strcasecmp(tok, "ALL") == 0) {		/* all: always matches */
-	return (YES);
-    } else if (strcasecmp(tok, string) == 0) {	/* try exact match */
-	return (YES);
-    }
-    return (NO);
-}
-
-/* end of login_access.c */
-
-int strcasecmp(const char *s1, const char *s2) 
-{
-    while ((toupper(*s1)==toupper(*s2)) && (*s1) && (*s2)) {s1++; s2++;}
-    return(toupper(*s1)-toupper(*s2));
-}
-
-/* --- public account management functions --- */
-
-PAM_EXTERN int pam_sm_acct_mgmt(pam_handle_t *pamh,int flags,int argc
-		     ,const char **argv)
-{
-    struct login_info loginfo;
-    const char *user=NULL, *service=NULL;
-    char *from=NULL;
-    struct passwd *user_pw;
-
-    if ((pam_get_item(pamh, PAM_SERVICE, (const void **)&service)
-	!= PAM_SUCCESS) || (service == NULL) || (*service == ' ')) {
-	_log_err("cannot find the service name");
-	return PAM_ABORT;
-    }
-
-    /* set username */
-
-    if (pam_get_user(pamh, &user, NULL) != PAM_SUCCESS || user == NULL
-	|| *user == '\0') {
-	_log_err("cannot determine the user's name");
-	return PAM_USER_UNKNOWN;
-    }
-
-    /* remote host name */
-
-    if (pam_get_item(pamh, PAM_RHOST, (const void **)&from)
-	!= PAM_SUCCESS) {
-	_log_err("cannot find the remote host name");
-	return PAM_ABORT;
-    }
-
-    if ((from==NULL) || (*from=='\0')) {
-
-        /* local login, set tty name */
-
-        if (pam_get_item(pamh, PAM_TTY, (const void **)&from) != PAM_SUCCESS
-            || from == NULL) {
-            D(("PAM_TTY not set, probing stdin"));
-	    from = ttyname(STDIN_FILENO);
-	    if (from == NULL) {
-	        _log_err("couldn't get the tty name");
-	        return PAM_ABORT;
-	     }
-	    if (pam_set_item(pamh, PAM_TTY, from) != PAM_SUCCESS) {
-	        _log_err("couldn't set tty name");
-	        return PAM_ABORT;
-	     }
-        }
-        if (strncmp("/dev/",from,5) == 0) {          /* strip leading /dev/ */
-	    from += 5;
-        }
-
-    }
-
-    if ((user_pw=getpwnam(user))==NULL) return (PAM_USER_UNKNOWN);
-
-    /*
-     * Bundle up the arguments to avoid unnecessary clumsiness later on.
-     */
-    loginfo.user = user_pw;
-    loginfo.from = from;
-    loginfo.service = service;
-    loginfo.config_file = PAM_ACCESS_CONFIG;
-
-    /* parse the argument list */
-
-    if (!parse_args(&loginfo, argc, argv)) {
-	_log_err("failed to parse the module arguments");
-	return PAM_ABORT;
-    }
-
-    if (login_access(&loginfo)) {
-	return (PAM_SUCCESS);
-    } else {
-	_log_err("access denied for user `%s' from `%s'",user,from);
-	return (PAM_PERM_DENIED);
-    }
-}
-
-/* end of module definition */
-
-#ifdef PAM_STATIC
-
-/* static module data */
-
-struct pam_module _pam_access_modstruct = {
-    "pam_access",
-    NULL,
-    NULL,
-    pam_sm_acct_mgmt,
-    NULL,
-    NULL,
-    NULL
-};
-#endif
-