diff options
Diffstat (limited to 'eBones/usr.sbin/kdb_edit/kdb_edit.c')
| -rw-r--r-- | eBones/usr.sbin/kdb_edit/kdb_edit.c | 470 |
1 files changed, 470 insertions, 0 deletions
diff --git a/eBones/usr.sbin/kdb_edit/kdb_edit.c b/eBones/usr.sbin/kdb_edit/kdb_edit.c new file mode 100644 index 0000000..4c02db6 --- /dev/null +++ b/eBones/usr.sbin/kdb_edit/kdb_edit.c @@ -0,0 +1,470 @@ +/* + * Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute + * of Technology. + * For copying and distribution information, please see the file + * <Copyright.MIT>. + * + * This routine changes the Kerberos encryption keys for principals, + * i.e., users or services. + * + * from: kdb_edit.c,v 4.2 90/01/09 16:05:09 raeburn Exp $ + * $Id: kdb_edit.c,v 1.3 1994/09/09 21:43:46 g89r4222 Exp $ + */ + +/* + * exit returns 0 ==> success -1 ==> error + */ + +#ifndef lint +static char rcsid[] = +"$Id: kdb_edit.c,v 1.3 1994/09/09 21:43:46 g89r4222 Exp $"; +#endif lint + +#include <stdio.h> +#include <signal.h> +#include <errno.h> +#include <strings.h> +#include <sys/ioctl.h> +#include <sys/file.h> +#include "time.h" +#include <des.h> +#include <krb.h> +#include <krb_db.h> +/* MKEYFILE is now defined in kdc.h */ +#include <kdc.h> + +extern char *errmsg(); +extern int errno; +extern char *strcpy(); + +void sig_exit(); + +#define zaptime(foo) bzero((char *)(foo), sizeof(*(foo))) + +char prog[32]; +char *progname = prog; +int nflag = 0; +int cflag; +int lflag; +int uflag; +int debug; +extern kerb_debug; + +Key_schedule KS; +C_Block new_key; +unsigned char *input; + +unsigned char *ivec; +int i, j; +int more; + +char *in_ptr; +char input_name[ANAME_SZ]; +char input_instance[INST_SZ]; +char input_string[ANAME_SZ]; + +#define MAX_PRINCIPAL 10 +Principal principal_data[MAX_PRINCIPAL]; + +static Principal old_principal; +static Principal default_princ; + +static C_Block master_key; +static C_Block session_key; +static Key_schedule master_key_schedule; +static char pw_str[255]; +static long master_key_version; + +/* + * gets replacement + */ +static char * s_gets(char * str, int len) +{ + int i; + char *s; + + if((s = fgets(str, len, stdin)) == NULL) + return(s); + if(str[i = (strlen(str)-1)] == '\n') + str[i] = '\0'; + return(s); +} + +main(argc, argv) + int argc; + char *argv[]; + +{ + /* Local Declarations */ + + long n; + + prog[sizeof prog - 1] = '\0'; /* make sure terminated */ + strncpy(prog, argv[0], sizeof prog - 1); /* salt away invoking + * program */ + + /* Assume a long is four bytes */ + if (sizeof(long) != 4) { + fprintf(stdout, "%s: size of long is %d.\n", sizeof(long), prog); + exit(-1); + } + /* Assume <=32 signals */ + if (NSIG > 32) { + fprintf(stderr, "%s: more than 32 signals defined.\n", prog); + exit(-1); + } + while (--argc > 0 && (*++argv)[0] == '-') + for (i = 1; argv[0][i] != '\0'; i++) { + switch (argv[0][i]) { + + /* debug flag */ + case 'd': + debug = 1; + continue; + + /* debug flag */ + case 'l': + kerb_debug |= 1; + continue; + + case 'n': /* read MKEYFILE for master key */ + nflag = 1; + continue; + + default: + fprintf(stderr, "%s: illegal flag \"%c\"\n", + progname, argv[0][i]); + Usage(); /* Give message and die */ + } + }; + + fprintf(stdout, "Opening database...\n"); + fflush(stdout); + kerb_init(); + if (argc > 0) { + if (kerb_db_set_name(*argv) != 0) { + fprintf(stderr, "Could not open altername database name\n"); + exit(1); + } + } + +#ifdef notdef + no_core_dumps(); /* diddle signals to avoid core dumps! */ + + /* ignore whatever is reasonable */ + signal(SIGHUP, SIG_IGN); + signal(SIGINT, SIG_IGN); + signal(SIGTSTP, SIG_IGN); + +#endif + + if (kdb_get_master_key ((nflag == 0), + master_key, master_key_schedule) != 0) { + fprintf (stdout, "Couldn't read master key.\n"); + fflush (stdout); + exit (-1); + } + + if ((master_key_version = kdb_verify_master_key(master_key, + master_key_schedule, + stdout)) < 0) + exit (-1); + + /* lookup the default values */ + n = kerb_get_principal(KERB_DEFAULT_NAME, KERB_DEFAULT_INST, + &default_princ, 1, &more); + if (n != 1) { + fprintf(stderr, + "%s: Kerberos error on default value lookup, %d found.\n", + progname, n); + exit(-1); + } + fprintf(stdout, "Previous or default values are in [brackets] ,\n"); + fprintf(stdout, "enter return to leave the same, or new value.\n"); + + while (change_principal()) { + } + + cleanup(); +} + +change_principal() +{ + static char temp[255]; + int creating = 0; + int editpw = 0; + int changed = 0; + long temp_long; + int n; + struct tm *tp, edate, *localtime(); + long maketime(); + + fprintf(stdout, "\nPrincipal name: "); + fflush(stdout); + if (!s_gets(input_name, ANAME_SZ-1) || *input_name == '\0') + return 0; + fprintf(stdout, "Instance: "); + fflush(stdout); + /* instance can be null */ + s_gets(input_instance, INST_SZ-1); + j = kerb_get_principal(input_name, input_instance, principal_data, + MAX_PRINCIPAL, &more); + if (!j) { + fprintf(stdout, "\n\07\07<Not found>, Create [y] ? "); + s_gets(temp, sizeof(temp)-1); /* Default case should work, it didn't */ + if (temp[0] != 'y' && temp[0] != 'Y' && temp[0] != '\0') + return -1; + /* make a new principal, fill in defaults */ + j = 1; + creating = 1; + strcpy(principal_data[0].name, input_name); + strcpy(principal_data[0].instance, input_instance); + principal_data[0].old = NULL; + principal_data[0].exp_date = default_princ.exp_date; + principal_data[0].max_life = default_princ.max_life; + principal_data[0].attributes = default_princ.attributes; + principal_data[0].kdc_key_ver = (unsigned char) master_key_version; + principal_data[0].key_version = 0; /* bumped up later */ + } + tp = localtime(&principal_data[0].exp_date); + (void) sprintf(principal_data[0].exp_date_txt, "%4d-%02d-%02d", + tp->tm_year > 1900 ? tp->tm_year : tp->tm_year + 1900, + tp->tm_mon + 1, tp->tm_mday); /* January is 0, not 1 */ + for (i = 0; i < j; i++) { + for (;;) { + fprintf(stdout, + "\nPrincipal: %s, Instance: %s, kdc_key_ver: %d", + principal_data[i].name, principal_data[i].instance, + principal_data[i].kdc_key_ver); + editpw = 1; + changed = 0; + if (!creating) { + /* + * copy the existing data so we can use the old values + * for the qualifier clause of the replace + */ + principal_data[i].old = (char *) &old_principal; + bcopy(&principal_data[i], &old_principal, + sizeof(old_principal)); + printf("\nChange password [n] ? "); + s_gets(temp, sizeof(temp)-1); + if (strcmp("y", temp) && strcmp("Y", temp)) + editpw = 0; + } + /* password */ + if (editpw) { +#ifdef NOENCRYPTION + placebo_read_pw_string(pw_str, sizeof pw_str, + "\nNew Password: ", TRUE); +#else + des_read_pw_string(pw_str, sizeof pw_str, + "\nNew Password: ", TRUE); +#endif + if (!strcmp(pw_str, "RANDOM")) { + printf("\nRandom password [y] ? "); + s_gets(temp, sizeof(temp)-1); + if (!strcmp("n", temp) || !strcmp("N", temp)) { + /* no, use literal */ +#ifdef NOENCRYPTION + bzero(new_key, sizeof(C_Block)); + new_key[0] = 127; +#else + string_to_key(pw_str, new_key); +#endif + bzero(pw_str, sizeof pw_str); /* "RANDOM" */ + } else { +#ifdef NOENCRYPTION + bzero(new_key, sizeof(C_Block)); + new_key[0] = 127; +#else + random_key(new_key); +#endif + bzero(pw_str, sizeof pw_str); + } + } else if (!strcmp(pw_str, "NULL")) { + printf("\nNull Key [y] ? "); + s_gets(temp, sizeof(temp)-1); + if (!strcmp("n", temp) || !strcmp("N", temp)) { + /* no, use literal */ +#ifdef NOENCRYPTION + bzero(new_key, sizeof(C_Block)); + new_key[0] = 127; +#else + string_to_key(pw_str, new_key); +#endif + bzero(pw_str, sizeof pw_str); /* "NULL" */ + } else { + + principal_data[i].key_low = 0; + principal_data[i].key_high = 0; + goto null_key; + } + } else { +#ifdef NOENCRYPTION + bzero(new_key, sizeof(C_Block)); + new_key[0] = 127; +#else + string_to_key(pw_str,new_key); +#endif + bzero(pw_str, sizeof pw_str); + } + + /* seal it under the kerberos master key */ + kdb_encrypt_key (new_key, new_key, + master_key, master_key_schedule, + ENCRYPT); + bcopy(new_key, &principal_data[i].key_low, 4); + bcopy(((long *) new_key) + 1, + &principal_data[i].key_high, 4); + bzero(new_key, sizeof(new_key)); + null_key: + /* set master key version */ + principal_data[i].kdc_key_ver = + (unsigned char) master_key_version; + /* bump key version # */ + principal_data[i].key_version++; + fprintf(stdout, + "\nPrincipal's new key version = %d\n", + principal_data[i].key_version); + fflush(stdout); + changed = 1; + } + /* expiration date */ + fprintf(stdout, "Expiration date (enter yyyy-mm-dd) [ %s ] ? ", + principal_data[i].exp_date_txt); + zaptime(&edate); + while (s_gets(temp, sizeof(temp)-1) && ((n = strlen(temp)) > + sizeof(principal_data[0].exp_date_txt))) { + bad_date: + fprintf(stdout, "\07\07Date Invalid\n"); + fprintf(stdout, + "Expiration date (enter yyyy-mm-dd) [ %s ] ? ", + principal_data[i].exp_date_txt); + zaptime(&edate); + } + + if (*temp) { + if (sscanf(temp, "%d-%d-%d", &edate.tm_year, + &edate.tm_mon, &edate.tm_mday) != 3) + goto bad_date; + (void) strcpy(principal_data[i].exp_date_txt, temp); + edate.tm_mon--; /* January is 0, not 1 */ + edate.tm_hour = 23; /* nearly midnight at the end of the */ + edate.tm_min = 59; /* specified day */ + if (!(principal_data[i].exp_date = maketime(&edate, 1))) + goto bad_date; + changed = 1; + } + + /* maximum lifetime */ + fprintf(stdout, "Max ticket lifetime (*5 minutes) [ %d ] ? ", + principal_data[i].max_life); + while (s_gets(temp, sizeof(temp)-1) && *temp) { + if (sscanf(temp, "%d", &temp_long) != 1) + goto bad_life; + if (temp_long > 255 || (temp_long < 0)) { + bad_life: + fprintf(stdout, "\07\07Invalid, choose 0-255\n"); + fprintf(stdout, + "Max ticket lifetime (*5 minutes) [ %d ] ? ", + principal_data[i].max_life); + continue; + } + changed = 1; + /* dont clobber */ + principal_data[i].max_life = (unsigned short) temp_long; + break; + } + + /* attributes */ + fprintf(stdout, "Attributes [ %d ] ? ", + principal_data[i].attributes); + while (s_gets(temp, sizeof(temp)-1) && *temp) { + if (sscanf(temp, "%d", &temp_long) != 1) + goto bad_att; + if (temp_long > 65535 || (temp_long < 0)) { + bad_att: + fprintf(stdout, "\07\07Invalid, choose 0-65535\n"); + fprintf(stdout, "Attributes [ %d ] ? ", + principal_data[i].attributes); + continue; + } + changed = 1; + /* dont clobber */ + principal_data[i].attributes = + (unsigned short) temp_long; + break; + } + + /* + * remaining fields -- key versions and mod info, should + * not be directly manipulated + */ + if (changed) { + if (kerb_put_principal(&principal_data[i], 1)) { + fprintf(stdout, + "\nError updating Kerberos database"); + } else { + fprintf(stdout, "Edit O.K."); + } + } else { + fprintf(stdout, "Unchanged"); + } + + + bzero(&principal_data[i].key_low, 4); + bzero(&principal_data[i].key_high, 4); + fflush(stdout); + break; + } + } + if (more) { + fprintf(stdout, "\nThere were more tuples found "); + fprintf(stdout, "than there were space for"); + } + return 1; +} + + +no_core_dumps() +{ + + signal(SIGQUIT, sig_exit); + signal(SIGILL, sig_exit); + signal(SIGTRAP, sig_exit); + signal(SIGIOT, sig_exit); + signal(SIGEMT, sig_exit); + signal(SIGFPE, sig_exit); + signal(SIGBUS, sig_exit); + signal(SIGSEGV, sig_exit); + signal(SIGSYS, sig_exit); +} + +void +sig_exit(sig, code, scp) + int sig, code; + struct sigcontext *scp; +{ + cleanup(); + fprintf(stderr, + "\nSignal caught, sig = %d code = %d old pc = 0x%X \nexiting", + sig, code, scp->sc_pc); + exit(-1); +} + + +cleanup() +{ + + bzero(master_key, sizeof(master_key)); + bzero(session_key, sizeof(session_key)); + bzero(master_key_schedule, sizeof(master_key_schedule)); + bzero(principal_data, sizeof(principal_data)); + bzero(new_key, sizeof(new_key)); + bzero(pw_str, sizeof(pw_str)); +} +Usage() +{ + fprintf(stderr, "Usage: %s [-n]\n", progname); + exit(1); +} |
