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Diffstat (limited to 'crypto/kerberosIV/kadmin/ksrvutil.c')
-rw-r--r--crypto/kerberosIV/kadmin/ksrvutil.c638
1 files changed, 0 insertions, 638 deletions
diff --git a/crypto/kerberosIV/kadmin/ksrvutil.c b/crypto/kerberosIV/kadmin/ksrvutil.c
deleted file mode 100644
index 38722a0a376b8..0000000000000
--- a/crypto/kerberosIV/kadmin/ksrvutil.c
+++ /dev/null
@@ -1,638 +0,0 @@
-/*
- Copyright (C) 1989 by the Massachusetts Institute of Technology
-
- Export of this software from the United States of America is assumed
- to require a specific license from the United States Government.
- It is the responsibility of any person or organization contemplating
- export to obtain such a license before exporting.
-
-WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
-distribute this software and its documentation for any purpose and
-without fee is hereby granted, provided that the above copyright
-notice appear in all copies and that both that copyright notice and
-this permission notice appear in supporting documentation, and that
-the name of M.I.T. not be used in advertising or publicity pertaining
-to distribution of the software without specific, written prior
-permission. M.I.T. makes no representations about the suitability of
-this software for any purpose. It is provided "as is" without express
-or implied warranty.
-
- */
-
-/*
- * list and update contents of srvtab files
- */
-
-/*
- * ksrvutil
- * list and update the contents of srvtab files
- */
-
-#include "kadm_locl.h"
-
-RCSID("$Id: ksrvutil.c,v 1.50 1999/11/13 06:33:59 assar Exp $");
-
-#include "ksrvutil.h"
-
-#ifdef NOENCRYPTION
-#define read_long_pw_string placebo_read_pw_string
-#else /* NOENCRYPTION */
-#define read_long_pw_string des_read_pw_string
-#endif /* NOENCRYPTION */
-
-#define SRVTAB_MODE 0600 /* rw------- */
-#define PAD " "
-#define VNO_HEADER "Version"
-#define VNO_FORMAT "%4d "
-#define KEY_HEADER " Key " /* 17 characters long */
-#define PRINC_HEADER " Principal\n"
-#define PRINC_FORMAT "%s"
-
-char u_name[ANAME_SZ];
-char u_inst[INST_SZ];
-char u_realm[REALM_SZ];
-
-int destroyp = FALSE; /* Should the ticket file be destroyed? */
-
-static unsigned short
-get_mode(char *filename)
-{
- struct stat statbuf;
- unsigned short mode;
-
- memset(&statbuf, 0, sizeof(statbuf));
-
- if (stat(filename, &statbuf) < 0)
- mode = SRVTAB_MODE;
- else
- mode = statbuf.st_mode;
-
- return(mode);
-}
-
-static void
-copy_keyfile(char *keyfile, char *backup_keyfile)
-{
- int keyfile_fd;
- int backup_keyfile_fd;
- int keyfile_mode;
- char buf[BUFSIZ]; /* for copying keyfiles */
- int rcount; /* for copying keyfiles */
- int try_again;
-
- memset(buf, 0, sizeof(buf));
-
- do {
- try_again = FALSE;
- if ((keyfile_fd = open(keyfile, O_RDONLY, 0)) < 0) {
- if (errno != ENOENT)
- err (1, "open %s", keyfile);
- else {
- try_again = TRUE;
- if ((keyfile_fd =
- open(keyfile,
- O_WRONLY | O_TRUNC | O_CREAT, SRVTAB_MODE)) < 0)
- err(1, "create %s", keyfile);
- else
- if (close(keyfile_fd) < 0)
- err (1, "close %s", keyfile);
- }
- }
- } while(try_again);
-
- keyfile_mode = get_mode(keyfile);
-
- if ((backup_keyfile_fd =
- open(backup_keyfile, O_WRONLY | O_TRUNC | O_CREAT,
- keyfile_mode)) < 0)
- err (1, "open %s", backup_keyfile);
- do {
- if ((rcount = read(keyfile_fd, buf, sizeof(buf))) < 0)
- err (1, "read %s", keyfile);
- if (rcount && (write(backup_keyfile_fd, buf, rcount) != rcount))
- err (1, "write %s", backup_keyfile);
- } while (rcount);
- if (close(backup_keyfile_fd) < 0)
- err(1, "close %s", backup_keyfile);
- if (close(keyfile_fd) < 0)
- err(1, "close %s", keyfile);
-}
-
-void
-leave(char *str, int x)
-{
- if (str)
- fprintf(stderr, "%s\n", str);
- if (destroyp)
- dest_tkt();
- exit(x);
-}
-
-void
-safe_read_stdin(char *prompt, char *buf, size_t size)
-{
- printf("%s", prompt);
- fflush(stdout);
- memset(buf, 0, size);
- if (read(0, buf, size - 1) < 0) {
- warn("read stdin");
- leave(NULL, 1);
- }
- buf[strlen(buf)-1] = 0;
-}
-
-void
-safe_write(char *filename, int fd, void *buf, size_t len)
-{
- if (write(fd, buf, len) != len) {
- warn("write %s", filename);
- close(fd);
- leave("In progress srvtab in this file.", 1);
- }
-}
-
-static int
-yes_no(char *string, int dflt)
-{
- char ynbuf[5];
-
- printf("%s (y,n) [%c]", string, dflt?'y':'n');
- for (;;) {
- safe_read_stdin("", ynbuf, sizeof(ynbuf));
-
- if ((ynbuf[0] == 'n') || (ynbuf[0] == 'N'))
- return(0);
- else if ((ynbuf[0] == 'y') || (ynbuf[0] == 'Y'))
- return(1);
- else if(ynbuf[0] == 0)
- return dflt;
- else {
- printf("Please enter 'y' or 'n': ");
- fflush(stdout);
- }
- }
-}
-
-int yn(char *string)
-{
- return yes_no(string, 1);
-}
-
-int ny(char *string)
-{
- return yes_no(string, 0);
-}
-
-static void
-append_srvtab(char *filename, int fd, char *sname, char *sinst, char *srealm,
- unsigned char key_vno, unsigned char *key)
-{
- /* Add one to append null */
- safe_write(filename, fd, sname, strlen(sname) + 1);
- safe_write(filename, fd, sinst, strlen(sinst) + 1);
- safe_write(filename, fd, srealm, strlen(srealm) + 1);
- safe_write(filename, fd, &key_vno, 1);
- safe_write(filename, fd, key, sizeof(des_cblock));
- fsync(fd);
-}
-
-static void
-print_key(unsigned char *key)
-{
- int i;
-
- for (i = 0; i < 4; i++)
- printf("%02x", key[i]);
- printf(" ");
- for (i = 4; i < 8; i++)
- printf("%02x", key[i]);
-}
-
-static void
-print_name(char *name, char *inst, char *realm)
-{
- printf("%s", krb_unparse_name_long(name, inst, realm));
-}
-
-static int
-get_svc_new_key(des_cblock *new_key, char *sname, char *sinst,
- char *srealm, char *keyfile)
-{
- int status = KADM_SUCCESS;
-
- if (((status = krb_get_svc_in_tkt(sname, sinst, srealm, PWSERV_NAME,
- KADM_SINST, 1, keyfile)) == KSUCCESS) &&
- ((status = kadm_init_link(PWSERV_NAME, KRB_MASTER, srealm)) ==
- KADM_SUCCESS)) {
-#ifdef NOENCRYPTION
- memset(new_key, 0, sizeof(des_cblock));
- (*new_key)[0] = (unsigned char) 1;
-#else /* NOENCRYPTION */
- des_new_random_key(new_key);
-#endif /* NOENCRYPTION */
- return(KADM_SUCCESS);
- }
-
- return(status);
-}
-
-static void
-get_key_from_password(des_cblock (*key), char *cellname)
-{
- char password[MAX_KPW_LEN]; /* storage for the password */
-
- if (read_long_pw_string(password, sizeof(password)-1, "Password: ", 1))
- leave("Error reading password.", 1);
-
-#ifdef NOENCRYPTION
- memset(key, 0, sizeof(des_cblock));
- (*key)[0] = (unsigned char) 1;
-#else /* NOENCRYPTION */
- if (strlen(cellname) == 0)
- des_string_to_key(password, key);
- else
- afs_string_to_key(password, cellname, key);
-#endif /* NOENCRYPTION */
- memset(password, 0, sizeof(password));
-}
-
-static void
-usage(void)
-{
- fprintf(stderr, "Usage: ksrvutil [-f keyfile] [-i] [-k] ");
- fprintf(stderr, "[-p principal] [-r realm] [-u]");
- fprintf(stderr, "[-c AFS cellname] ");
- fprintf(stderr, "{list | change | add | get | delete}\n");
- fprintf(stderr, " -i causes the program to ask for "
- "confirmation before changing keys.\n");
- fprintf(stderr, " -k causes the key to printed for list or change.\n");
- fprintf(stderr, " -u creates one keyfile for each principal "
- "(only used with `get')\n");
- exit(1);
-}
-
-int
-main(int argc, char **argv)
-{
- char sname[ANAME_SZ]; /* name of service */
- char sinst[INST_SZ]; /* instance of service */
- char srealm[REALM_SZ]; /* realm of service */
- unsigned char key_vno; /* key version number */
- int status; /* general purpose error status */
- des_cblock new_key;
- des_cblock old_key;
- char change_tkt[MaxPathLen]; /* Ticket to use for key change */
- char keyfile[MaxPathLen]; /* Original keyfile */
- char work_keyfile[MaxPathLen]; /* Working copy of keyfile */
- char backup_keyfile[MaxPathLen]; /* Backup copy of keyfile */
- unsigned short keyfile_mode; /* Protections on keyfile */
- int work_keyfile_fd = -1; /* Initialize so that */
- int backup_keyfile_fd = -1; /* compiler doesn't complain */
- char local_realm[REALM_SZ]; /* local kerberos realm */
- char cellname[1024]; /* AFS cell name */
- int c;
- int interactive = FALSE;
- int list = FALSE;
- int change = FALSE;
- int unique_filename = FALSE;
- int add = FALSE;
- int delete = FALSE;
- int get = FALSE;
- int key = FALSE; /* do we show keys? */
- int arg_entered = FALSE;
- int change_this_key = FALSE;
- char databuf[BUFSIZ];
- int first_printed = FALSE; /* have we printed the first item? */
-
- memset(sname, 0, sizeof(sname));
- memset(sinst, 0, sizeof(sinst));
- memset(srealm, 0, sizeof(srealm));
-
- memset(change_tkt, 0, sizeof(change_tkt));
- memset(keyfile, 0, sizeof(keyfile));
- memset(work_keyfile, 0, sizeof(work_keyfile));
- memset(backup_keyfile, 0, sizeof(backup_keyfile));
- memset(local_realm, 0, sizeof(local_realm));
- memset(cellname, 0, sizeof(cellname));
-
- set_progname (argv[0]);
-
- if (krb_get_default_principal(u_name, u_inst, u_realm) < 0)
- errx (1, "could not get default principal");
-
- /* This is used only as a default for adding keys */
- if (krb_get_lrealm(local_realm, 1) != KSUCCESS)
- strlcpy(local_realm,
- KRB_REALM,
- sizeof(local_realm));
-
- while((c = getopt(argc, argv, "ikc:f:p:r:u")) != -1) {
- switch (c) {
- case 'i':
- interactive++;
- break;
- case 'k':
- key++;
- break;
- case 'c':
- strlcpy(cellname, optarg, sizeof(cellname));
- break;
- case 'f':
- strlcpy(keyfile, optarg, sizeof(keyfile));
- break;
- case 'p':
- if((status = kname_parse (u_name, u_inst, u_realm, optarg)) !=
- KSUCCESS)
- errx (1, "principal %s: %s", optarg,
- krb_get_err_text(status));
- break;
- case 'r':
- strlcpy(u_realm, optarg, sizeof(u_realm));
- break;
- case 'u':
- unique_filename = 1;
- break;
- case '?':
- usage();
- }
- }
- if (optind >= argc)
- usage();
- if (*u_realm == '\0')
- strlcpy (u_realm, local_realm, sizeof(u_realm));
- if (strcmp(argv[optind], "list") == 0) {
- if (arg_entered)
- usage();
- else {
- arg_entered++;
- list++;
- }
- }
- else if (strcmp(argv[optind], "change") == 0) {
- if (arg_entered)
- usage();
- else {
- arg_entered++;
- change++;
- }
- }
- else if (strcmp(argv[optind], "add") == 0) {
- if (arg_entered)
- usage();
- else {
- arg_entered++;
- add++;
- }
- }
- else if (strcmp(argv[optind], "get") == 0) {
- if (arg_entered)
- usage();
- else {
- arg_entered++;
- get++;
- }
- }
- else if (strcmp(argv[optind], "delete") == 0) {
- if (arg_entered)
- usage();
- else {
- arg_entered++;
- delete++;
- }
- }
- else
- usage();
- ++optind;
-
- if (!arg_entered)
- usage();
-
- if(unique_filename && !get)
- warnx("`-u' flag is only used with `get'");
-
- if (!keyfile[0])
- strlcpy(keyfile, KEYFILE, sizeof(keyfile));
-
- strlcpy(work_keyfile, keyfile, sizeof(work_keyfile));
- strlcpy(backup_keyfile, keyfile, sizeof(backup_keyfile));
-
- if (change || add || (get && !unique_filename) || delete) {
- snprintf(work_keyfile, sizeof(work_keyfile), "%s.work", keyfile);
- snprintf(backup_keyfile, sizeof(backup_keyfile), "%s.old", keyfile);
- copy_keyfile(keyfile, backup_keyfile);
- }
-
- if (add || (get && !unique_filename))
- copy_keyfile(backup_keyfile, work_keyfile);
-
- keyfile_mode = get_mode(keyfile);
-
- if (change || list || delete)
- if ((backup_keyfile_fd = open(backup_keyfile, O_RDONLY, 0)) < 0)
- err (1, "open %s", backup_keyfile);
-
- if (change || delete) {
- if ((work_keyfile_fd =
- open(work_keyfile, O_WRONLY | O_CREAT | O_TRUNC,
- SRVTAB_MODE)) < 0)
- err (1, "creat %s", work_keyfile);
- }
- else if (add) {
- if ((work_keyfile_fd =
- open(work_keyfile, O_APPEND | O_WRONLY, SRVTAB_MODE)) < 0)
- err (1, "open with append %s", work_keyfile );
- }
- else if (get && !unique_filename) {
- if ((work_keyfile_fd =
- open(work_keyfile, O_RDWR | O_CREAT, SRVTAB_MODE)) < 0)
- err (1, "open for writing %s", work_keyfile);
- }
-
- if (change || list || delete) {
- while ((getst(backup_keyfile_fd, sname, SNAME_SZ) > 0) &&
- (getst(backup_keyfile_fd, sinst, INST_SZ) > 0) &&
- (getst(backup_keyfile_fd, srealm, REALM_SZ) > 0) &&
- (read(backup_keyfile_fd, &key_vno, 1) > 0) &&
- (read(backup_keyfile_fd, old_key, sizeof(old_key)) > 0)) {
- if (list) {
- if (!first_printed) {
- printf(VNO_HEADER);
- printf(PAD);
- if (key) {
- printf(KEY_HEADER);
- printf(PAD);
- }
- printf(PRINC_HEADER);
- first_printed = 1;
- }
- printf(VNO_FORMAT, key_vno);
- printf(PAD);
- if (key) {
- print_key(old_key);
- printf(PAD);
- }
- print_name(sname, sinst, srealm);
- printf("\n");
- }
- else if (change) {
- snprintf(change_tkt, sizeof(change_tkt), "%s_ksrvutil.%u",
- TKT_ROOT, (unsigned)getpid());
- krb_set_tkt_string(change_tkt);
- destroyp = TRUE;
-
- printf("\nPrincipal: ");
- print_name(sname, sinst, srealm);
- printf("; version %d\n", key_vno);
- if (interactive)
- change_this_key = yn("Change this key?");
- else
- change_this_key = 1;
-
- if (change_this_key)
- printf("Changing to version %d.\n", key_vno + 1);
- else if (change)
- printf("Not changing this key.\n");
-
- if (change_this_key) {
- /*
- * This is not a good choice of seed when/if the
- * key has been compromised so we also use a
- * random sequence number!
- */
- des_init_random_number_generator(&old_key);
- {
- des_cblock seqnum;
- des_generate_random_block(&seqnum);
- des_set_sequence_number((unsigned char *)&seqnum);
- }
- /*
- * Pick a new key and determine whether or not
- * it is safe to change
- */
- if ((status =
- get_svc_new_key(&new_key, sname, sinst,
- srealm, keyfile)) == KADM_SUCCESS)
- key_vno++;
- else {
- memcpy(new_key, old_key, sizeof(new_key));
- warnx ("Key NOT changed: %s\n",
- krb_get_err_text(status));
- change_this_key = FALSE;
- }
- }
- else
- memcpy(new_key, old_key, sizeof(new_key));
- append_srvtab(work_keyfile, work_keyfile_fd,
- sname, sinst, srealm, key_vno, new_key);
- if (key && change_this_key) {
- printf("Old key: ");
- print_key(old_key);
- printf("; new key: ");
- print_key(new_key);
- printf("\n");
- }
- if (change_this_key) {
- if ((status = kadm_change_pw(new_key)) == KADM_SUCCESS) {
- printf("Key changed.\n");
- dest_tkt();
- }
- else {
- com_err(__progname, status,
- " attempting to change password.");
- dest_tkt();
- /* XXX This knows the format of a keyfile */
- if (lseek(work_keyfile_fd, -9, SEEK_CUR) >= 0) {
- key_vno--;
- safe_write(work_keyfile,
- work_keyfile_fd, &key_vno, 1);
- safe_write(work_keyfile, work_keyfile_fd,
- old_key, sizeof(des_cblock));
- fsync(work_keyfile_fd);
- fprintf(stderr,"Key NOT changed.\n");
- } else {
- warn ("Unable to revert keyfile");
- leave("", 1);
- }
- }
- }
- } else if(delete) {
- int delete_this_key;
- printf("\nPrincipal: ");
- print_name(sname, sinst, srealm);
- printf("; version %d\n", key_vno);
- delete_this_key = yn("Delete this key?");
-
- if (delete_this_key)
- printf("Deleting this key.\n");
-
- if (!delete_this_key) {
- append_srvtab(work_keyfile, work_keyfile_fd,
- sname, sinst, srealm, key_vno, old_key);
- }
- }
- memset(old_key, 0, sizeof(des_cblock));
- memset(new_key, 0, sizeof(des_cblock));
- }
- }
- else if (add) {
- do {
- do {
- char *p;
-
- safe_read_stdin("Name: ", databuf, sizeof(databuf));
- p = strchr(databuf, '.');
- if (p != NULL) {
- *p++ = '\0';
- strlcpy (sname, databuf, sizeof(sname));
- strlcpy (sinst, p, sizeof(sinst));
- } else {
- strlcpy (sname, databuf, sizeof(sname));
- safe_read_stdin("Instance: ", databuf, sizeof(databuf));
- strlcpy (sinst, databuf, sizeof(databuf));
- }
-
- safe_read_stdin("Realm: ", databuf, sizeof(databuf));
- if (databuf[0] != '\0')
- strlcpy (srealm, databuf, sizeof(srealm));
- else
- strlcpy (srealm, local_realm, sizeof(srealm));
-
- safe_read_stdin("Version number: ", databuf, sizeof(databuf));
- key_vno = atoi(databuf);
- if (!srealm[0])
- strlcpy(srealm, local_realm, sizeof(srealm));
- printf("New principal: ");
- print_name(sname, sinst, srealm);
- printf("; version %d\n", key_vno);
- } while (!yn("Is this correct?"));
- get_key_from_password(&new_key, cellname);
- if (key) {
- printf("Key: ");
- print_key(new_key);
- printf("\n");
- }
- append_srvtab(work_keyfile, work_keyfile_fd,
- sname, sinst, srealm, key_vno, new_key);
- printf("Key successfully added.\n");
- } while (yn("Would you like to add another key?"));
- }
- else if (get) {
- ksrvutil_get(unique_filename, work_keyfile_fd, work_keyfile,
- argc - optind, argv + optind);
- }
-
- if (change || list || delete)
- if (close(backup_keyfile_fd) < 0)
- warn ("close %s", backup_keyfile);
-
- if (change || add || (get && !unique_filename) || delete) {
- if (close(work_keyfile_fd) < 0)
- err (1, "close %s", work_keyfile);
- if (rename(work_keyfile, keyfile) < 0)
- err (1, "rename(%s, %s)", work_keyfile, keyfile);
- chmod(backup_keyfile, keyfile_mode);
- chmod(keyfile, keyfile_mode);
- printf("Old keyfile in %s.\n", backup_keyfile);
- }
- return 0;
-}
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