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/* $OpenBSD: tcfsputkey.c,v 1.11 2000/06/20 18:15:57 aaron Exp $ */
/*
* Transparent Cryptographic File System (TCFS) for NetBSD
* Author and mantainer: Luigi Catuogno [luicat@tcfs.unisa.it]
*
* references: http://tcfs.dia.unisa.it
* tcfs-bsd@tcfs.unisa.it
*/
/*
* Base utility set v0.1
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/mount.h>
#include <ctype.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <miscfs/tcfs/tcfs.h>
#include "tcfslib.h"
#include "tcfserrors.h"
#include <grp.h>
extern char *optarg;
extern int optind;
char *putkey_usage=
"usage: tcfsputkey [-k][-f fliesystem-label][-g group][-p mount-point]\n";
int
putkey_main(int argc, char *argv[])
{
char *user, *password, *tcfskey;
uid_t uid;
gid_t gid = 0;
int es = 0, treshold;
char x;
tcfspwdb *info;
tcfsgpwdb *ginfo;
char fslabel[MAXPATHLEN], fspath[MAXPATHLEN];
int def = TRUE, havempname = FALSE, havefsname = FALSE;
int isgroupkey = FALSE;
int havename = FALSE, havefspath = FALSE, havekey = FALSE;
while ((x = getopt(argc, argv, "kf:p:g:")) != -1) {
switch(x) {
case 'k':
def = FALSE;
break;
case 'p':
havempname = TRUE;
strlcpy(fspath, optarg, sizeof(fspath));
break;
case 'f':
havefsname = TRUE;
strlcpy(fslabel, optarg, sizeof(fslabel));
break;
case 'g':
isgroupkey = TRUE;
def = TRUE;
gid = atoi(optarg);
if (!gid && optarg[0] != 0) {
struct group *grp;
grp = (struct group *)getgrnam(optarg);
if (!grp)
tcfs_error(ER_CUSTOM,
"Nonexistant group\n");
gid = grp->gr_gid;
}
break;
default:
tcfs_error(ER_CUSTOM, putkey_usage);
exit(ER_UNKOPT);
}
}
if (argc - optind)
tcfs_error(ER_UNKOPT, NULL);
if (havefsname && havempname) {
tcfs_error(ER_CUSTOM, putkey_usage);
exit(1);
}
if (havefsname) {
es = tcfs_getfspath(fslabel, fspath);
havename = TRUE;
}
if (havefspath)
havename = TRUE;
if (!havename)
es = tcfs_getfspath("default", fspath);
if (!es) {
tcfs_error(ER_CUSTOM, "fs-label not found!\n");
exit(1);
}
uid = getuid();
if (isgroupkey) {
if (!unix_auth(&user, &password, TRUE))
tcfs_error(ER_AUTH, user);
if (!tcfsgpwdbr_new(&ginfo))
tcfs_error(ER_MEM, NULL);
if (!tcfs_ggetpwnam(user, gid, &ginfo))
tcfs_error(ER_CUSTOM, "Default key non found");
if (!strlen(ginfo->gkey))
tcfs_error(ER_CUSTOM, "Invalid default key");
tcfskey = (char *)malloc(UUKEYSIZE);
if (!tcfskey)
tcfs_error(ER_MEM, NULL);
treshold = ginfo->soglia;
if (!tcfs_decrypt_key(password, ginfo->gkey, tcfskey, GKEYSIZE))
tcfs_error(ER_CUSTOM, "Could not decrypt group key");
es = tcfs_group_enable(fspath, uid, gid, treshold, tcfskey);
if (es == -1) {
tcfs_error(ER_CUSTOM, "problems updating filesystem");
}
exit(0);
}
if (!def) {
tcfskey = getpass("Insert tcfs-key:");
havekey = TRUE;
} else {
if (!unix_auth(&user, &password, TRUE))
tcfs_error(ER_AUTH, user);
if (!tcfspwdbr_new(&info))
tcfs_error(ER_MEM, NULL);
if (!tcfs_getpwnam(user, &info))
tcfs_error(ER_CUSTOM, "Default key non found");
if (!strlen(info->upw))
tcfs_error(ER_CUSTOM, "Invalid default key");
tcfskey = (char *)malloc(UUKEYSIZE);
if (!tcfskey)
tcfs_error(ER_MEM, NULL);
if (!tcfs_decrypt_key (password, info->upw, tcfskey, KEYSIZE))
tcfs_error(ER_CUSTOM, "Could not decrypt key");
havekey = TRUE;
}
es = tcfs_user_enable(fspath, uid, tcfskey);
if (es == -1)
tcfs_error(ER_CUSTOM, "problems updating filesystem");
exit(0);
}
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