New upstream version 0.76

1 files changed, 0 insertions, 622 deletions

diff --git a/modules/pam_time/pam_time.c b/modules/pam_time/pam_time.c
deleted file mode 100644
index 9cf68280..00000000
--- a/modules/pam_time/pam_time.c
+++ /dev/null
@@ -1,622 +0,0 @@
-/* pam_time module */
-
-/*
- * $Id$
- *
- * Written by Andrew Morgan <morgan@linux.kernel.org> 1996/6/22
- * (File syntax and much other inspiration from the shadow package
- * shadow-960129)
- */
-
-const static char rcsid[] =
-"$Id$;\n"
-"\t\tVersion 0.22 for Linux-PAM\n"
-"Copyright (C) Andrew G. Morgan 1996 <morgan@linux.kernel.org>\n";
-
-#include <security/_pam_aconf.h>
-
-#include <sys/file.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <ctype.h>
-#include <unistd.h>
-#include <stdarg.h>
-#include <time.h>
-#include <syslog.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-
-#ifdef DEFAULT_CONF_FILE
-# define PAM_TIME_CONF         DEFAULT_CONF_FILE /* from external define */
-#else
-# define PAM_TIME_CONF         "/etc/security/time.conf"
-#endif
-#define PAM_TIME_BUFLEN        1000
-#define FIELD_SEPARATOR        ';'   /* this is new as of .02 */
-
-#ifdef TRUE 
-# undef TRUE 
-#endif 
-#ifdef FALSE 
-# undef FALSE 
-#endif
-
-typedef enum { FALSE, TRUE } boolean;
-typedef enum { AND, OR } operator;
-
-/*
- * 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>
-
-/* --- 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_time", LOG_CONS|LOG_PID, LOG_AUTH);
-    vsyslog(LOG_CRIT, format, args);
-    va_end(args);
-    closelog();
-}
-
-static void shift_bytes(char *mem, int from, int by)
-{
-    while (by-- > 0) {
-	*mem = mem[from];
-	++mem;
-    }
-}
-
-static int read_field(int fd, char **buf, int *from, int *to)
-{
-    /* is buf set ? */
-
-    if (! *buf) {
-	*buf = (char *) malloc(PAM_TIME_BUFLEN);
-	if (! *buf) {
-	    _log_err("out of memory");
-	    D(("no memory"));
-	    return -1;
-	}
-	*from = *to = 0;
-	fd = open(PAM_TIME_CONF, O_RDONLY);
-    }
-
-    /* do we have a file open ? return error */
-
-    if (fd < 0 && *to <= 0) {
-	_log_err( PAM_TIME_CONF " not opened");
-	memset(*buf, 0, PAM_TIME_BUFLEN);
-	_pam_drop(*buf);
-	return -1;
-    }
-
-    /* check if there was a newline last time */
-
-    if ((*to > *from) && (*to > 0)
-	&& ((*buf)[*from] == '\0')) { /* previous line ended */
-	(*from)++;
-	(*buf)[0] = '\0';
-	return fd;
-    }
-
-    /* ready for more data: first shift the buffer's remaining data */
-
-    *to -= *from;
-    shift_bytes(*buf, *from, *to);
-    *from = 0;
-    (*buf)[*to] = '\0';
-
-    while (fd >= 0 && *to < PAM_TIME_BUFLEN) {
-	int i;
-
-	/* now try to fill the remainder of the buffer */
-
-	i = read(fd, *to + *buf, PAM_TIME_BUFLEN - *to);
-	if (i < 0) {
-	    _log_err("error reading " PAM_TIME_CONF);
-	    return -1;
-	} else if (!i) {
-	    close(fd);
-	    fd = -1;          /* end of file reached */
-	} else
-	    *to += i;
-    
-	/*
-	 * contract the buffer. Delete any comments, and replace all
-	 * multiple spaces with single commas
-	 */
-
-	i = 0;
-#ifdef DEBUG_DUMP
-	D(("buffer=<%s>",*buf));
-#endif
-	while (i < *to) {
-	    if ((*buf)[i] == ',') {
-		int j;
-
-		for (j=++i; j<*to && (*buf)[j] == ','; ++j);
-		if (j!=i) {
-		    shift_bytes(i + (*buf), j-i, (*to) - j);
-		    *to -= j-i;
-		}
-	    }
-	    switch ((*buf)[i]) {
-		int j,c;
-	    case '#':
-		for (j=i; j < *to && (c = (*buf)[j]) != '\n'; ++j);
-		if (j >= *to) {
-		    (*buf)[*to = ++i] = '\0';
-		} else if (c == '\n') {
-		    shift_bytes(i + (*buf), j-i, (*to) - j);
-		    *to -= j-i;
-		    ++i;
-		} else {
-		    _log_err("internal error in " __FILE__
-			     " at line %d", __LINE__ );
-		    return -1;
-		}
-		break;
-	    case '\\':
-		if ((*buf)[i+1] == '\n') {
-		    shift_bytes(i + *buf, 2, *to - (i+2));
-		    *to -= 2;
-		} else {
-		    ++i;   /* we don't escape non-newline characters */
-		}
-		break;
-	    case '!':
-	    case ' ':
-	    case '\t':
-		if ((*buf)[i] != '!')
-		    (*buf)[i] = ',';
-		/* delete any trailing spaces */
-		for (j=++i; j < *to && ( (c = (*buf)[j]) == ' '
-					 || c == '\t' ); ++j);
-		shift_bytes(i + *buf, j-i, (*to)-j );
-		*to -= j-i;
-		break;
-	    default:
-		++i;
-	    }
-	}
-    }
-
-    (*buf)[*to] = '\0';
-
-    /* now return the next field (set the from/to markers) */
-    {
-	int i;
-
-	for (i=0; i<*to; ++i) {
-	    switch ((*buf)[i]) {
-	    case '#':
-	    case '\n':               /* end of the line/file */
-		(*buf)[i] = '\0';
-		*from = i;
-		return fd;
-	    case FIELD_SEPARATOR:    /* end of the field */
-		(*buf)[i] = '\0';
-	    *from = ++i;
-	    return fd;
-	    }
-	}
-	*from = i;
-	(*buf)[*from] = '\0';
-    }
-
-    if (*to <= 0) {
-	D(("[end of text]"));
-	*buf = NULL;
-    }
-
-    return fd;
-}
-
-/* read a member from a field */
-
-static int logic_member(const char *string, int *at)
-{
-     int len,c,to;
-     int done=0;
-     int token=0;
-
-     len=0;
-     to=*at;
-     do {
-	  c = string[to++];
-
-	  switch (c) {
-
-	  case '\0':
-	       --to;
-	       done = 1;
-	       break;
-
-	  case '&':
-	  case '|':
-	  case '!':
-	       if (token) {
-		    --to;
-	       }
-	       done = 1;
-	       break;
-
-	  default:
-	       if (isalpha(c) || c == '*' || isdigit(c) || c == '_'
-		    || c == '-' || c == '.' || c == '/') {
-		    token = 1;
-	       } else if (token) {
-		    --to;
-		    done = 1;
-	       } else {
-		    ++*at;
-	       }
-	  }
-     } while (!done);
-
-     return to - *at;
-}
-
-typedef enum { VAL, OP } expect;
-
-static boolean logic_field(const void *me, const char *x, int rule,
-			   boolean (*agrees)(const void *, const char *
-					     , int, int))
-{
-     boolean left=FALSE, right, not=FALSE;
-     operator oper=OR;
-     int at=0, l;
-     expect next=VAL;
-
-     while ((l = logic_member(x,&at))) {
-	  int c = x[at];
-
-	  if (next == VAL) {
-	       if (c == '!')
-		    not = !not;
-	       else if (isalpha(c) || c == '*') {
-		    right = not ^ agrees(me, x+at, l, rule);
-		    if (oper == AND)
-			 left &= right;
-		    else
-			 left |= right;
-		    next = OP;
-	       } else {
-		    _log_err("garbled syntax; expected name (rule #%d)", rule);
-		    return FALSE;
-	       }
-	  } else {   /* OP */
-	       switch (c) {
-	       case '&':
-		    oper = AND;
-		    break;
-	       case '|':
-		    oper = OR;
-		    break;
-	       default:
-		    _log_err("garbled syntax; expected & or | (rule #%d)"
-			     , rule);
-		    D(("%c at %d",c,at));
-		    return FALSE;
-	       }
-	       next = VAL;
-	  }
-	  at += l;
-     }
-
-     return left;
-}
-
-static boolean is_same(const void *A, const char *b, int len, int rule)
-{
-     int i;
-     const char *a;
-
-     a = A;
-     for (i=0; len > 0; ++i, --len) {
-	  if (b[i] != a[i]) {
-	       if (b[i++] == '*') {
-		    return (!--len || !strncmp(b+i,a+strlen(a)-len,len));
-	       } else
-		    return FALSE;
-	  }
-     }
-     return ( !len );
-}
-
-typedef struct {
-     int day;             /* array of 7 bits, one set for today */
-     int minute;            /* integer, hour*100+minute for now */
-} TIME;
-
-struct day {
-     const char *d;
-     int bit;
-} static const days[11] = {
-     { "su", 01 },
-     { "mo", 02 },
-     { "tu", 04 },
-     { "we", 010 },
-     { "th", 020 },
-     { "fr", 040 },
-     { "sa", 0100 },
-     { "wk", 076 },
-     { "wd", 0101 },
-     { "al", 0177 },
-     { NULL, 0 }
-};
-
-static TIME time_now(void)
-{
-     struct tm *local;
-     time_t the_time;
-     TIME this;
-
-     the_time = time((time_t *)0);                /* get the current time */
-     local = localtime(&the_time);
-     this.day = days[local->tm_wday].bit;
-     this.minute = local->tm_hour*100 + local->tm_min;
-
-     D(("day: 0%o, time: %.4d", this.day, this.minute));
-     return this;
-}
-
-/* take the current date and see if the range "date" passes it */
-static boolean check_time(const void *AT, const char *times, int len, int rule)
-{
-     boolean not,pass;
-     int marked_day, time_start, time_end;
-     const TIME *at;
-     int i,j=0;
-
-     at = AT;
-     D(("chcking: 0%o/%.4d vs. %s", at->day, at->minute, times));
-
-     if (times == NULL) {
-	  /* this should not happen */
-	  _log_err("internal error: " __FILE__ " line %d", __LINE__);
-	  return FALSE;
-     }
-
-     if (times[j] == '!') {
-	  ++j;
-	  not = TRUE;
-     } else {
-	  not = FALSE;
-     }
-
-     for (marked_day = 0; len > 0 && isalpha(times[j]); --len) {
-	  int this_day=-1;
-
-	  D(("%c%c ?", times[j], times[j+1]));
-	  for (i=0; days[i].d != NULL; ++i) {
-	       if (tolower(times[j]) == days[i].d[0]
-		   && tolower(times[j+1]) == days[i].d[1] ) {
-		    this_day = days[i].bit;
-		    break;
-	       }
-	  }
-	  j += 2;
-	  if (this_day == -1) {
-	       _log_err("bad day specified (rule #%d)", rule);
-	       return FALSE;
-	  }
-	  marked_day ^= this_day;
-     }
-     if (marked_day == 0) {
-	  _log_err("no day specified");
-	  return FALSE;
-     }
-     D(("day range = 0%o", marked_day));
-
-     time_start = 0;
-     for (i=0; len > 0 && i < 4 && isdigit(times[i+j]); ++i, --len) {
-	  time_start *= 10;
-	  time_start += times[i+j]-'0';        /* is this portable? */
-     }
-     j += i;
-
-     if (times[j] == '-') {
-	  time_end = 0;
-	  for (i=1; len > 0 && i < 5 && isdigit(times[i+j]); ++i, --len) {
-	       time_end *= 10;
-	       time_end += times[i+j]-'0';    /* is this portable */
-	  }
-	  j += i;
-     } else
-	  time_end = -1;
-
-     D(("i=%d, time_end=%d, times[j]='%c'", i, time_end, times[j]));
-     if (i != 5 || time_end == -1) {
-	  _log_err("no/bad times specified (rule #%d)", rule);
-	  return TRUE;
-     }
-     D(("times(%d to %d)", time_start,time_end));
-     D(("marked_day = 0%o", marked_day));
-
-     /* compare with the actual time now */
-
-     pass = FALSE;
-     if (time_start < time_end) {    /* start < end ? --> same day */
-	  if ((at->day & marked_day) && (at->minute >= time_start)
-	      && (at->minute < time_end)) {
-	       D(("time is listed"));
-	       pass = TRUE;
-	  }
-     } else {                                    /* spans two days */
-	  if ((at->day & marked_day) && (at->minute >= time_start)) {
-	       D(("caught on first day"));
-	       pass = TRUE;
-	  } else {
-	       marked_day <<= 1;
-	       marked_day |= (marked_day & 0200) ? 1:0;
-	       D(("next day = 0%o", marked_day));
-	       if ((at->day & marked_day) && (at->minute <= time_end)) {
-		    D(("caught on second day"));
-		    pass = TRUE;
-	       }
-	  }
-     }
-
-     return (not ^ pass);
-}
-
-static int check_account(const char *service
-			 , const char *tty, const char *user)
-{
-     int from=0,to=0,fd=-1;
-     char *buffer=NULL;
-     int count=0;
-     TIME here_and_now;
-     int retval=PAM_SUCCESS;
-
-     here_and_now = time_now();                     /* find current time */
-     do {
-	  boolean good=TRUE,intime;
-
-	  /* here we get the service name field */
-
-	  fd = read_field(fd,&buffer,&from,&to);
-
-	  if (!buffer || !buffer[0]) {
-	       /* empty line .. ? */
-	       continue;
-	  }
-	  ++count;
-
-	  good = logic_field(service, buffer, count, is_same);
-	  D(("with service: %s", good ? "passes":"fails" ));
-
-	  /* here we get the terminal name field */
-
-	  fd = read_field(fd,&buffer,&from,&to);
-	  if (!buffer || !buffer[0]) {
-	       _log_err(PAM_TIME_CONF "; no tty entry #%d", count);
-	       continue;
-	  }
-	  good &= logic_field(tty, buffer, count, is_same);
-	  D(("with tty: %s", good ? "passes":"fails" ));
-
-	  /* here we get the username field */
-
-	  fd = read_field(fd,&buffer,&from,&to);
-	  if (!buffer || !buffer[0]) {
-	       _log_err(PAM_TIME_CONF "; no user entry #%d", count);
-	       continue;
-	  }
-	  good &= logic_field(user, buffer, count, is_same);
-	  D(("with user: %s", good ? "passes":"fails" ));
-
-	  /* here we get the time field */
-
-	  fd = read_field(fd,&buffer,&from,&to);
-	  if (!buffer || !buffer[0]) {
-	       _log_err(PAM_TIME_CONF "; no time entry #%d", count);
-	       continue;
-	  }
-
-	  intime = logic_field(&here_and_now, buffer, count, check_time);
-	  D(("with time: %s", intime ? "passes":"fails" ));
-
-	  fd = read_field(fd,&buffer,&from,&to);
-	  if (buffer && buffer[0]) {
-	       _log_err(PAM_TIME_CONF "; poorly terminated rule #%d", count);
-	       continue;
-	  }
-
-	  if (good && !intime) {
-	       /*
-		* for security parse whole file..  also need to ensure
-		* that the buffer is free()'d and the file is closed.
-		*/
-	       retval = PAM_PERM_DENIED;
-	  } else {
-	       D(("rule passed"));
-	  }
-     } while (buffer);
-
-     return retval;
-}
-
-/* --- public account management functions --- */
-
-PAM_EXTERN int pam_sm_acct_mgmt(pam_handle_t *pamh,int flags,int argc
-		     ,const char **argv)
-{
-    const char *service=NULL, *tty=NULL;
-    const char *user=NULL;
-
-    /* set service name */
-
-    if (pam_get_item(pamh, PAM_SERVICE, (const void **)&service)
-	!= PAM_SUCCESS || service == NULL) {
-	_log_err("cannot find the current 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;
-    }
-
-    /* set tty name */
-
-    if (pam_get_item(pamh, PAM_TTY, (const void **)&tty) != PAM_SUCCESS
-	|| tty == NULL) {
-	D(("PAM_TTY not set, probing stdin"));
-	tty = ttyname(STDIN_FILENO);
-	if (tty == NULL) {
-	    _log_err("couldn't get the tty name");
-	    return PAM_ABORT;
-	}
-	if (pam_set_item(pamh, PAM_TTY, tty) != PAM_SUCCESS) {
-	    _log_err("couldn't set tty name");
-	    return PAM_ABORT;
-	}
-    }
-
-    if (strncmp("/dev/",tty,5) == 0) {          /* strip leading /dev/ */
-	tty += 5;
-    }
-
-    /* good, now we have the service name, the user and the terminal name */
-
-    D(("service=%s", service));
-    D(("user=%s", user));
-    D(("tty=%s", tty));
-
-    return check_account(service,tty,user);
-}
-
-/* end of module definition */
-
-#ifdef PAM_STATIC
-
-/* static module data */
-
-struct pam_module _pam_time_modstruct = {
-    "pam_time",
-    NULL,
-    NULL,
-    pam_sm_acct_mgmt,
-    NULL,
-    NULL,
-    NULL
-};
-#endif