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-rw-r--r--contrib/libpam/modules/pam_listfile/pam_listfile.c436
1 files changed, 0 insertions, 436 deletions
diff --git a/contrib/libpam/modules/pam_listfile/pam_listfile.c b/contrib/libpam/modules/pam_listfile/pam_listfile.c
deleted file mode 100644
index e54b12a..0000000
--- a/contrib/libpam/modules/pam_listfile/pam_listfile.c
+++ /dev/null
@@ -1,436 +0,0 @@
-/*
- * $Id: pam_listfile.c,v 1.6 1997/04/05 06:38:35 morgan Exp $
- *
- * $Log: pam_listfile.c,v $
- * Revision 1.6 1997/04/05 06:38:35 morgan
- * reformat mostly
- *
- * Revision 1.5 1997/02/15 17:29:41 morgan
- * removed fixed length buffer in logging
- *
- * Revision 1.4 1997/01/04 20:32:10 morgan
- * ammendments for pam_listfile handling
- *
- * Revision 1.3 1996/11/10 21:02:08 morgan
- * compiles with .53
- *
- * Revision 1.2 1996/09/05 06:22:58 morgan
- * Michael's patches
- *
- */
-
-/*
- * by Elliot Lee <sopwith@redhat.com>, Red Hat Software.
- * July 25, 1996.
- * This code shamelessly ripped from the pam_rootok module.
- */
-
-#ifdef linux
-# define _SVID_SOURCE
-# define _BSD_SOURCE
-# define __USE_BSD
-# define __USE_SVID
-# define __USE_MISC
-# define _GNU_SOURCE
-# include <features.h>
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <syslog.h>
-#include <stdarg.h>
-#include <string.h>
-#include <pwd.h>
-#include <grp.h>
-
-#ifdef DEBUG
-#include <assert.h>
-#endif
-
-/*
- * here, we make a definition for the externally accessible function
- * in this file (this definition is required for static a module
- * but strongly encouraged generally) it is used to instruct the
- * modules include file to define the function prototypes.
- */
-
-#define PAM_SM_AUTH
-
-#include <security/pam_modules.h>
-#include <security/_pam_macros.h>
-
-/* some syslogging */
-
-static void _pam_log(int err, const char *format, ...)
-{
- va_list args;
-
- va_start(args, format);
- openlog("PAM-listfile", LOG_CONS|LOG_PID, LOG_AUTH);
- vsyslog(err, format, args);
- va_end(args);
- closelog();
-}
-
-/* checks if a user is on a list of members */
-static int is_on_list(char * const *list, const char *member)
-{
- while (*list) {
- if (strcmp(*list, member) == 0)
- return 1;
- list++;
- }
- return 0;
-}
-
-/* Checks if a user is a member of a group */
-static int is_on_group(const char *user_name, const char *group_name)
-{
- struct passwd *pwd;
- struct group *grp, *pgrp;
- char uname[BUFSIZ], gname[BUFSIZ];
-
- if (!strlen(user_name))
- return 0;
- if (!strlen(group_name))
- return 0;
- bzero(uname, sizeof(uname));
- strncpy(uname, user_name, BUFSIZ-1);
- bzero(gname, sizeof(gname));
- strncpy(gname, group_name, BUFSIZ-1);
-
- setpwent();
- pwd = getpwnam(uname);
- endpwent();
- if (!pwd)
- return 0;
-
- /* the info about this group */
- setgrent();
- grp = getgrnam(gname);
- endgrent();
- if (!grp)
- return 0;
-
- /* first check: is a member of the group_name group ? */
- if (is_on_list(grp->gr_mem, uname))
- return 1;
-
- /* next check: user primary group is group_name ? */
- setgrent();
- pgrp = getgrgid(pwd->pw_gid);
- endgrent();
- if (!pgrp)
- return 0;
- if (!strcmp(pgrp->gr_name, gname))
- return 1;
-
- return 0;
-}
-
-/* --- authentication management functions (only) --- */
-
-/* Extended Items that are not directly available via pam_get_item() */
-#define EI_GROUP (1 << 0)
-#define EI_SHELL (1 << 1)
-
-/* Constants for apply= parameter */
-#define APPLY_TYPE_NULL 0
-#define APPLY_TYPE_NONE 1
-#define APPLY_TYPE_USER 2
-#define APPLY_TYPE_GROUP 3
-
-PAM_EXTERN
-int pam_sm_authenticate(pam_handle_t *pamh, int flags, int argc, const char **argv)
-{
- int retval, i, citem=0, extitem=0, onerr=PAM_SERVICE_ERR, sense=2;
- const char *citemp;
- char *ifname=NULL;
- char aline[256];
- char mybuf[256],myval[256];
- struct stat fileinfo;
- FILE *inf;
- char apply_val[256];
- int apply_type;
-
- /* Stuff for "extended" items */
- struct passwd *userinfo;
- struct group *grpinfo;
- char *itemlist[256]; /* Maximum of 256 items */
-
- D(("called."));
-
- apply_type=APPLY_TYPE_NULL;
- memset(apply_val,0,sizeof(apply_val));
-
- for(i=0; i < argc; i++) {
- {
- char *junk;
- junk = (char *) malloc(strlen(argv[i])+1);
- if (junk == NULL) {
- return PAM_BUF_ERR;
- }
- strcpy(junk,argv[i]);
- strncpy(mybuf,strtok(junk,"="),255);
- strncpy(myval,strtok(NULL,"="),255);
- free(junk);
- }
- if(!strcmp(mybuf,"onerr"))
- if(!strcmp(myval,"succeed"))
- onerr = PAM_SUCCESS;
- else if(!strcmp(myval,"fail"))
- onerr = PAM_SERVICE_ERR;
- else
- return PAM_SERVICE_ERR;
- else if(!strcmp(mybuf,"sense"))
- if(!strcmp(myval,"allow"))
- sense=0;
- else if(!strcmp(myval,"deny"))
- sense=1;
- else
- return onerr;
- else if(!strcmp(mybuf,"file")) {
- ifname = (char *)malloc(strlen(myval)+1);
- strcpy(ifname,myval);
- } else if(!strcmp(mybuf,"item"))
- if(!strcmp(myval,"user"))
- citem = PAM_USER;
- else if(!strcmp(myval,"tty"))
- citem = PAM_TTY;
- else if(!strcmp(myval,"rhost"))
- citem = PAM_RHOST;
- else if(!strcmp(myval,"ruser"))
- citem = PAM_RUSER;
- else { /* These items are related to the user, but are not
- directly gettable with pam_get_item */
- citem = PAM_USER;
- if(!strcmp(myval,"group"))
- extitem = EI_GROUP;
- else if(!strcmp(myval,"shell"))
- extitem = EI_SHELL;
- else
- citem = 0;
- } else if(!strcmp(mybuf,"apply")) {
- apply_type=APPLY_TYPE_NONE;
- if (myval[0]=='@') {
- apply_type=APPLY_TYPE_GROUP;
- strncpy(apply_val,myval+1,sizeof(apply_val)-1);
- } else {
- apply_type=APPLY_TYPE_USER;
- strncpy(apply_val,myval,sizeof(apply_val)-1);
- }
- } else {
- _pam_log(LOG_ERR,"Unknown option: %s",mybuf);
- return onerr;
- }
- }
-
- if(!citem) {
- _pam_log(LOG_ERR,"Unknown item or item not specified");
- return onerr;
- } else if(!ifname) {
- _pam_log(LOG_ERR,"List filename not specified");
- return onerr;
- } else if(sense == 2) {
- _pam_log(LOG_ERR,"Unknown sense or sense not specified");
- return onerr;
- } else if(
- (apply_type==APPLY_TYPE_NONE) ||
- ((apply_type!=APPLY_TYPE_NULL) && (*apply_val=='\0'))
- ) {
- _pam_log(LOG_ERR,"Invalid usage for apply= parameter");
- return onerr;
- }
-
- /* Check if it makes sense to use the apply= parameter */
- if (apply_type != APPLY_TYPE_NULL) {
- if((citem==PAM_USER) || (citem==PAM_RUSER)) {
- _pam_log(LOG_WARNING,"Non-sense use for apply= parameter");
- apply_type=APPLY_TYPE_NULL;
- }
- if(extitem && (extitem==EI_GROUP)) {
- _pam_log(LOG_WARNING,"Non-sense use for apply= parameter");
- apply_type=APPLY_TYPE_NULL;
- }
- }
-
- /* Short-circuit - test if this session apply for this user */
- {
- const char *user_name;
- int rval;
-
- rval=pam_get_user(pamh,&user_name,NULL);
- if((rval==PAM_SUCCESS) && user_name[0]) {
- /* Got it ? Valid ? */
- if(apply_type==APPLY_TYPE_USER) {
- if(strcmp(user_name, apply_val)) {
- /* Does not apply to this user */
-#ifdef DEBUG
- _pam_log(LOG_DEBUG,"don't apply: apply=%s, user=%s",
- apply_val,user_name);
-#endif /* DEBUG */
- return PAM_IGNORE;
- }
- } else if(apply_type==APPLY_TYPE_GROUP) {
- if(!is_on_group(user_name,apply_val)) {
- /* Not a member of apply= group */
-#ifdef DEBUG
- _pam_log(LOG_DEBUG,"don't apply: %s not a member of group %s",
- user_name,apply_val);
-#endif /* DEBUG */
- return PAM_IGNORE;
- }
- }
- }
- }
-
- retval = pam_get_item(pamh,citem,(const void **)&citemp);
- if(retval != PAM_SUCCESS) {
- return onerr;
- }
- if((citem == PAM_USER) && !citemp) {
- pam_get_user(pamh,&citemp,NULL);
- if (retval != PAM_SUCCESS)
- return PAM_SERVICE_ERR;
- }
-
- if(!citemp || (strlen(citemp) <= 0)) {
- /* The item was NULL - we are sure not to match */
- return sense?PAM_SUCCESS:PAM_AUTH_ERR;
- }
-
- if(extitem) {
- switch(extitem) {
- case EI_GROUP:
- setpwent();
- userinfo = getpwnam(citemp);
- setgrent();
- grpinfo = getgrgid(userinfo->pw_gid);
- itemlist[0] = x_strdup(grpinfo->gr_name);
- setgrent();
- for (i=1; (i < sizeof(itemlist)/sizeof(itemlist[0])-1) &&
- (grpinfo = getgrent()); ) {
- if (is_on_list(grpinfo->gr_mem,citemp)) {
- itemlist[i++] = x_strdup(grpinfo->gr_name);
- }
- }
- itemlist[i] = NULL;
- endgrent();
- endpwent();
- break;
- case EI_SHELL:
- setpwent();
- userinfo = getpwnam(citemp); /* Assume that we have already gotten
- PAM_USER in pam_get_item() - a valid
- assumption since citem gets set to
- PAM_USER in the extitem switch */
- citemp = userinfo->pw_shell;
- endpwent();
- break;
- default:
- _pam_log(LOG_ERR,"Internal weirdness, unknown extended item %d",
- extitem);
- return onerr;
- }
- }
-#ifdef DEBUG
- _pam_log(LOG_INFO,"Got file = %s, item = %d, value = %s, sense = %d",
- ifname, citem, citemp, sense);
-#endif
- if(lstat(ifname,&fileinfo)) {
- _pam_log(LOG_ERR,
- "Couldn't open %s",ifname);
- return onerr;
- }
-
- if((fileinfo.st_mode & S_IWOTH)
- || !S_ISREG(fileinfo.st_mode)) {
- /* If the file is world writable or is not a
- normal file, return error */
- _pam_log(LOG_ERR,
- "%s is either world writable or not a normal file",
- ifname);
- return PAM_AUTH_ERR;
- }
-
- inf = fopen(ifname,"r");
- if(inf == NULL) { /* Check that we opened it successfully */
- if (onerr == PAM_SERVICE_ERR) {
- /* Only report if it's an error... */
- _pam_log(LOG_ERR, "Error opening %s", ifname);
- }
- return onerr;
- }
- /* There should be no more errors from here on */
- retval=PAM_AUTH_ERR;
- /* This loop assumes that PAM_SUCCESS == 0
- and PAM_AUTH_ERR != 0 */
-#ifdef DEBUG
- assert(PAM_SUCCESS == 0);
- assert(PAM_AUTH_ERR != 0);
-#endif
- if(extitem == EI_GROUP) {
- while((fgets(aline,255,inf) != NULL)
- && retval) {
- if(aline[strlen(aline) - 1] == '\n')
- aline[strlen(aline) - 1] = '\0';
- for(i=0;itemlist[i];)
- /* If any of the items match, strcmp() == 0, and we get out
- of this loop */
- retval = (strcmp(aline,itemlist[i++]) && retval);
- }
- for(i=0;itemlist[i];)
- free(itemlist[i++]);
- } else {
- while((fgets(aline,255,inf) != NULL)
- && retval) {
- if(aline[strlen(aline) - 1] == '\n')
- aline[strlen(aline) - 1] = '\0';
- retval = strcmp(aline,citemp);
- }
- }
- fclose(inf);
- free(ifname);
- if(retval) {
-#ifdef DEBUG
- syslog(LOG_INFO,"Returning %d, retval = %d",
- sense?PAM_AUTH_ERR:PAM_SUCCESS, retval);
-#endif
- return sense?PAM_SUCCESS:PAM_AUTH_ERR;
- }
- else {
-#ifdef DEBUG
- syslog(LOG_INFO,"Returning %d, retval = %d",
- sense?PAM_SUCCESS:PAM_AUTH_ERR, retval);
-#endif
- return sense?PAM_AUTH_ERR:PAM_SUCCESS;
- }
-}
-
-PAM_EXTERN
-int pam_sm_setcred(pam_handle_t *pamh, int flags, int argc, const char **argv)
-{
- return PAM_SUCCESS;
-}
-
-#ifdef PAM_STATIC
-
-/* static module data */
-
-struct pam_module _pam_listfile_modstruct = {
- "pam_listfile",
- pam_sm_authenticate,
- pam_sm_setcred,
- NULL,
- NULL,
- NULL,
- NULL,
-};
-
-#endif
-
-/* end of module definition */
-
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