diff options
Diffstat (limited to 'crypto/kerberosIV/lib/kadm/kadm_cli_wrap.c')
| -rw-r--r-- | crypto/kerberosIV/lib/kadm/kadm_cli_wrap.c | 632 |
1 files changed, 0 insertions, 632 deletions
diff --git a/crypto/kerberosIV/lib/kadm/kadm_cli_wrap.c b/crypto/kerberosIV/lib/kadm/kadm_cli_wrap.c deleted file mode 100644 index 7208487..0000000 --- a/crypto/kerberosIV/lib/kadm/kadm_cli_wrap.c +++ /dev/null @@ -1,632 +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. - - */ - -/* - * Kerberos administration server client-side routines - */ - -/* - * kadm_cli_wrap.c the client side wrapping of the calls to the admin server - */ - -#include "kadm_locl.h" - -/* RCSID("$Id: kadm_cli_wrap.c,v 1.27 1999/09/16 20:41:46 assar Exp $");*/ -RCSID("$FreeBSD$"); - -static Kadm_Client client_parm; - -/* Macros for use in returning data... used in kadm_cli_send */ -#define RET_N_FREE(r) {clear_secrets(); free(act_st); free(priv_pak); return r;} - -/* Keys for use in the transactions */ -static des_cblock sess_key; /* to be filled in by kadm_cli_keyd */ -static des_key_schedule sess_sched; - -static void -clear_secrets(void) -{ - memset(sess_key, 0, sizeof(sess_key)); - memset(sess_sched, 0, sizeof(sess_sched)); -} - -static RETSIGTYPE (*opipe)(); - -static void -kadm_cli_disconn(void) -{ - close(client_parm.admin_fd); - signal(SIGPIPE, opipe); -} - -/* - * kadm_init_link - * receives : name, inst, realm - * - * initializes client parm, the Kadm_Client structure which holds the - * data about the connection between the server and client, the services - * used, the locations and other fun things - */ - -int -kadm_init_link(char *n, char *i, char *r) -{ - struct hostent *hop; /* host we will talk to */ - char adm_hostname[MaxHostNameLen]; - - init_kadm_err_tbl(); - init_krb_err_tbl(); - strlcpy(client_parm.sname, n, ANAME_SZ); - strlcpy(client_parm.sinst, i, INST_SZ); - strlcpy(client_parm.krbrlm, r, REALM_SZ); - client_parm.admin_fd = -1; - - /* set up the admin_addr - fetch name of admin host */ - if (krb_get_admhst(adm_hostname, client_parm.krbrlm, 1) != KSUCCESS) - return KADM_NO_HOST; - if ((hop = gethostbyname(adm_hostname)) == NULL) - return KADM_UNK_HOST; - memset(&client_parm.admin_addr, 0, sizeof(client_parm.admin_addr)); - client_parm.admin_addr.sin_port = - k_getportbyname(KADM_SNAME, "tcp", htons(KADM_PORT)); - client_parm.admin_addr.sin_family = hop->h_addrtype; - memcpy(&client_parm.admin_addr.sin_addr, hop->h_addr, - sizeof(client_parm.admin_addr.sin_addr)); - - return KADM_SUCCESS; -} - -static int -kadm_cli_conn(void) -{ /* this connects and sets my_addr */ - client_parm.admin_fd = - socket(client_parm.admin_addr.sin_family, SOCK_STREAM, 0); - - if (client_parm.admin_fd < 0) - return KADM_NO_SOCK; /* couldn't create the socket */ - if (connect(client_parm.admin_fd, - (struct sockaddr *) & client_parm.admin_addr, - sizeof(client_parm.admin_addr))) { - close(client_parm.admin_fd); - client_parm.admin_fd = -1; - return KADM_NO_CONN; /* couldn't get the connect */ - } - opipe = signal(SIGPIPE, SIG_IGN); - client_parm.my_addr_len = sizeof(client_parm.my_addr); - if (getsockname(client_parm.admin_fd, - (struct sockaddr *) & client_parm.my_addr, - &client_parm.my_addr_len) < 0) { - close(client_parm.admin_fd); - client_parm.admin_fd = -1; - signal(SIGPIPE, opipe); - return KADM_NO_HERE; /* couldn't find out who we are */ - } -#if defined(SO_KEEPALIVE) && defined(HAVE_SETSOCKOPT) - { - int on = 1; - - if (setsockopt(client_parm.admin_fd, SOL_SOCKET, SO_KEEPALIVE, - (void *)&on, - sizeof(on)) < 0) { - close(client_parm.admin_fd); - client_parm.admin_fd = -1; - signal(SIGPIPE, opipe); - return KADM_NO_CONN; /* XXX */ - } - } -#endif - return KADM_SUCCESS; -} - -/* takes in the sess_key and key_schedule and sets them appropriately */ -static int -kadm_cli_keyd(des_cblock (*s_k), /* session key */ - des_key_schedule s_s) /* session key schedule */ -{ - CREDENTIALS cred; /* to get key data */ - int stat; - - /* want .sname and .sinst here.... */ - if ((stat = krb_get_cred(client_parm.sname, client_parm.sinst, - client_parm.krbrlm, &cred))) - return stat + krb_err_base; - memcpy(s_k, cred.session, sizeof(des_cblock)); - memset(cred.session, 0, sizeof(des_cblock)); -#ifdef NOENCRYPTION - memset(s_s, 0, sizeof(des_key_schedule)); -#else - if ((stat = des_key_sched(s_k,s_s))) - return stat+krb_err_base; -#endif - return KADM_SUCCESS; -} /* This code "works" */ - -static int -kadm_cli_out(u_char *dat, int dat_len, u_char **ret_dat, int *ret_siz) -{ - u_int16_t dlen; - int retval; - char tmp[4]; - - *ret_dat = NULL; - *ret_siz = 0; - dlen = (u_int16_t) dat_len; - - if (dat_len != (int)dlen) - return (KADM_NO_ROOM); - - tmp[0] = (dlen >> 8) & 0xff; - tmp[1] = dlen & 0xff; - if (krb_net_write(client_parm.admin_fd, tmp, 2) != 2) - return (errno); /* XXX */ - - if (krb_net_write(client_parm.admin_fd, dat, dat_len) < 0) - return (errno); /* XXX */ - - - if ((retval = krb_net_read(client_parm.admin_fd, tmp, 2)) != 2){ - if (retval < 0) - return(errno); /* XXX */ - else - return(EPIPE); /* short read ! */ - } - dlen = (tmp[0] << 8) | tmp[1]; - - *ret_dat = malloc(dlen); - if (*ret_dat == NULL) - return(KADM_NOMEM); - - if ((retval = krb_net_read(client_parm.admin_fd, *ret_dat, - dlen) != dlen)) { - free(*ret_dat); - *ret_dat = NULL; - if (retval < 0) - return(errno); /* XXX */ - else - return(EPIPE); /* short read ! */ - } - *ret_siz = (int) dlen; - return KADM_SUCCESS; -} - -/* - * kadm_cli_send - * recieves : opcode, packet, packet length, serv_name, serv_inst - * returns : return code from the packet build, the server, or - * something else - * - * It assembles a packet as follows: - * 8 bytes : VERSION STRING - * 4 bytes : LENGTH OF MESSAGE DATA and OPCODE - * : KTEXT - * : OPCODE \ - * : DATA > Encrypted (with make priv) - * : ...... / - * - * If it builds the packet and it is small enough, then it attempts to open the - * connection to the admin server. If the connection is succesfully open - * then it sends the data and waits for a reply. - */ -static int -kadm_cli_send(u_char *st_dat, /* the actual data */ - int st_siz, /* length of said data */ - u_char **ret_dat, /* to give return info */ - int *ret_siz) /* length of returned info */ -{ - int act_len, retdat; /* current offset into packet, return - * data */ - KTEXT_ST authent; /* the authenticator we will build */ - u_char *act_st; /* the pointer to the complete packet */ - u_char *priv_pak; /* private version of the packet */ - int priv_len; /* length of private packet */ - u_int32_t cksum; /* checksum of the packet */ - MSG_DAT mdat; - u_char *return_dat; - int tmp; - void *tmp_ptr; - - *ret_dat = NULL; - *ret_siz = 0; - - act_st = malloc(KADM_VERSIZE); /* verstr stored first */ - if (act_st == NULL) { - clear_secrets (); - return KADM_NOMEM; - } - memcpy(act_st, KADM_VERSTR, KADM_VERSIZE); - act_len = KADM_VERSIZE; - - if ((retdat = kadm_cli_keyd(&sess_key, sess_sched)) != KADM_SUCCESS) { - free(act_st); - clear_secrets(); - return retdat; /* couldnt get key working */ - } - priv_pak = malloc(st_siz + 200); - /* 200 bytes for extra info case */ - if (priv_pak == NULL) { - free(act_st); - clear_secrets (); - return KADM_NOMEM; - } - priv_len = krb_mk_priv(st_dat, priv_pak, st_siz, - sess_sched, &sess_key, &client_parm.my_addr, - &client_parm.admin_addr); - - if (priv_len < 0) - RET_N_FREE(KADM_NO_ENCRYPT); /* whoops... we got a lose - * here */ - /* here is the length of priv data. receiver calcs - size of authenticator by subtracting vno size, priv size, and - sizeof(u_int32_t) (for the size indication) from total size */ - - tmp = vts_long(priv_len, &act_st, act_len); - if (tmp < 0) - RET_N_FREE(KADM_NOMEM); - act_len += tmp; -#ifdef NOENCRYPTION - cksum = 0; -#else - cksum = des_quad_cksum((des_cblock *)priv_pak, - (des_cblock *)0, priv_len, 0, - &sess_key); -#endif - - retdat = krb_mk_req(&authent, client_parm.sname, client_parm.sinst, - client_parm.krbrlm, cksum); - - if (retdat) { - /* authenticator? */ - RET_N_FREE(retdat + krb_err_base); - } - - tmp_ptr = realloc(act_st, - act_len + authent.length + priv_len); - if (tmp_ptr == NULL) { - clear_secrets(); - free (priv_pak); - free (act_st); - return KADM_NOMEM; - } - act_st = tmp_ptr; - memcpy(act_st + act_len, authent.dat, authent.length); - memcpy(act_st + act_len + authent.length, priv_pak, priv_len); - free(priv_pak); - retdat = kadm_cli_out(act_st, - act_len + authent.length + priv_len, - ret_dat, ret_siz); - free(act_st); - if (retdat != KADM_SUCCESS) { - clear_secrets(); - return retdat; - } -#define RET_N_FREE2(r) {free(*ret_dat); *ret_dat = NULL; clear_secrets(); return(r);} - - /* first see if it's a YOULOUSE */ - if ((*ret_siz >= KADM_VERSIZE) && - !strncmp(KADM_ULOSE, (char *)*ret_dat, KADM_VERSIZE)) { - unsigned char *p; - /* it's a youlose packet */ - if (*ret_siz < KADM_VERSIZE + 4) - RET_N_FREE2(KADM_BAD_VER); - p = (*ret_dat)+KADM_VERSIZE; - retdat = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]; - RET_N_FREE2(retdat); - } - /* need to decode the ret_dat */ - retdat = krb_rd_priv(*ret_dat, (u_int32_t)*ret_siz, sess_sched, - &sess_key, &client_parm.admin_addr, - &client_parm.my_addr, &mdat); - if (retdat) - RET_N_FREE2(retdat+krb_err_base); - if (mdat.app_length < KADM_VERSIZE + 4) - /* too short! */ - RET_N_FREE2(KADM_BAD_VER); - if (strncmp((char *)mdat.app_data, KADM_VERSTR, KADM_VERSIZE)) - /* bad version */ - RET_N_FREE2(KADM_BAD_VER); - { - unsigned char *p = mdat.app_data+KADM_VERSIZE; - retdat = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]; - } - { - int s = mdat.app_length - KADM_VERSIZE - 4; - - if(s <= 0) - s=1; - return_dat = malloc(s); - if (return_dat == NULL) - RET_N_FREE2(KADM_NOMEM); - } - memcpy(return_dat, - (char *) mdat.app_data + KADM_VERSIZE + 4, - mdat.app_length - KADM_VERSIZE - 4); - free(*ret_dat); - clear_secrets(); - *ret_dat = return_dat; - *ret_siz = mdat.app_length - KADM_VERSIZE - 4; - return retdat; -} - - - -/* - * kadm_change_pw_plain - * - * see kadm_change_pw - * - */ -int kadm_change_pw_plain(unsigned char *newkey, char *password, char **pw_msg) -{ - int stsize, retc; /* stream size and return code */ - u_char *send_st; /* send stream */ - u_char *ret_st; - int ret_sz; - int status; - static char msg[128]; - - /* possible problem with vts_long on a non-multiple of four boundary */ - - stsize = 0; /* start of our output packet */ - send_st = malloc(9); - if (send_st == NULL) - return KADM_NOMEM; - send_st[stsize++] = (u_char) CHANGE_PW; - memcpy(send_st + stsize + 4, newkey, 4); /* yes, this is backwards */ - memcpy(send_st + stsize, newkey + 4, 4); - stsize += 8; - - /* change key to stream */ - - if(password && *password) { - int tmp = vts_string(password, &send_st, stsize); - - if (tmp < 0) { - free(send_st); - return KADM_NOMEM; - } - stsize += tmp; - } - - if ((retc = kadm_cli_conn()) != KADM_SUCCESS) { - free(send_st); - return(retc); - } - retc = kadm_cli_send(send_st, stsize, &ret_st, &ret_sz); - free(send_st); - - if(retc != KADM_SUCCESS){ - status = stv_string(ret_st, msg, 0, sizeof(msg), ret_sz); - if(status<0) - msg[0]=0; - *pw_msg=msg; - } - free(ret_st); - - kadm_cli_disconn(); - return(retc); -} - -/* - * This function is here for compatibility with CNS - */ - -int kadm_change_pw2(unsigned char *newkey, char *password, char **pw_msg) -{ - return kadm_change_pw_plain (newkey, password, pw_msg); -} - - -/* - * kadm_change_pw - * recieves : key - * - * Replaces the password (i.e. des key) of the caller with that specified in - * key. Returns no actual data from the master server, since this is called - * by a user - */ - -int kadm_change_pw(unsigned char *newkey) -{ - char *pw_msg; - return kadm_change_pw_plain(newkey, "", &pw_msg); -} - -/* - * kadm_add - * receives : vals - * returns : vals - * - * Adds and entry containing values to the database returns the values of the - * entry, so if you leave certain fields blank you will be able to determine - * the default values they are set to - */ -int -kadm_add(Kadm_vals *vals) -{ - u_char *st, *st2; /* st will hold the stream of values */ - int st_len; /* st2 the final stream with opcode */ - int retc; /* return code from call */ - u_char *ret_st; - int ret_sz; - - st_len = vals_to_stream(vals, &st); - st2 = malloc(1 + st_len); - if (st2 == NULL) { - free(st); - return KADM_NOMEM; - } - *st2 = (u_char) ADD_ENT; /* here's the opcode */ - memcpy((char *) st2 + 1, st, st_len); /* append st on */ - free(st); - - if ((retc = kadm_cli_conn()) != KADM_SUCCESS) { - free(st2); - return(retc); - } - retc = kadm_cli_send(st2, st_len + 1, &ret_st, &ret_sz); - free(st2); - if (retc == KADM_SUCCESS) { - /* ret_st has vals */ - if (stream_to_vals(ret_st, vals, ret_sz) < 0) - retc = KADM_LENGTH_ERROR; - } - free(ret_st); - kadm_cli_disconn(); - return(retc); -} - -/* - * kadm_mod - * receives : KTEXT, {values, values} - * returns : CKSUM, RETCODE, {values} - * acl : su, sms (as register or dealloc) - * - * Modifies all entries corresponding to the first values so they match the - * second values. returns the values for the changed entries in vals2 - */ -int -kadm_mod(Kadm_vals *vals1, Kadm_vals *vals2) -{ - u_char *st, *st2; /* st will hold the stream of values */ - int st_len, nlen; /* st2 the final stream with opcode */ - u_char *ret_st; - int ret_sz; - void *tmp_ptr; - - /* nlen is the length of second vals */ - int retc; /* return code from call */ - - st_len = vals_to_stream(vals1, &st); - st2 = malloc(1 + st_len); - if (st2 == NULL) { - free(st); - return KADM_NOMEM; - } - *st2 = (u_char) MOD_ENT; /* here's the opcode */ - memcpy((char *)st2 + 1, st, st_len++); /* append st on */ - free(st); - nlen = vals_to_stream(vals2, &st); - tmp_ptr = realloc(st2, st_len + nlen); - if (tmp_ptr == NULL) { - free(st); - free(st2); - return KADM_NOMEM; - } - st2 = tmp_ptr; - memcpy((char *) st2 + st_len, st, nlen); /* append st on */ - free(st); - - if ((retc = kadm_cli_conn()) != KADM_SUCCESS) { - free(st2); - return(retc); - } - - retc = kadm_cli_send(st2, st_len + nlen, &ret_st, &ret_sz); - free(st2); - if (retc == KADM_SUCCESS) { - /* ret_st has vals */ - if (stream_to_vals(ret_st, vals2, ret_sz) < 0) - retc = KADM_LENGTH_ERROR; - } - free(ret_st); - kadm_cli_disconn(); - return(retc); -} - - -int -kadm_del(Kadm_vals *vals) -{ - unsigned char *st, *st2; /* st will hold the stream of values */ - int st_len; /* st2 the final stream with opcode */ - int retc; /* return code from call */ - u_char *ret_st; - int ret_sz; - - st_len = vals_to_stream(vals, &st); - st2 = malloc(st_len + 1); - if (st2 == NULL) { - free(st); - return KADM_NOMEM; - } - *st2 = DEL_ENT; /* here's the opcode */ - memcpy(st2 + 1, st, st_len); /* append st on */ - free (st); - - if ((retc = kadm_cli_conn()) != KADM_SUCCESS) { - free(st2); - return(retc); - } - retc = kadm_cli_send(st2, st_len + 1, &ret_st, &ret_sz); - free(st2); - free(ret_st); - kadm_cli_disconn(); - return(retc); -} - - -/* - * kadm_get - * receives : KTEXT, {values, flags} - * returns : CKSUM, RETCODE, {count, values, values, values} - * acl : su - * - * gets the fields requested by flags from all entries matching values returns - * this data for each matching recipient, after a count of how many such - * matches there were - */ -int -kadm_get(Kadm_vals *vals, u_char *fl) -{ - int loop; /* for copying the fields data */ - u_char *st, *st2; /* st will hold the stream of values */ - int st_len; /* st2 the final stream with opcode */ - int retc; /* return code from call */ - u_char *ret_st; - int ret_sz; - - st_len = vals_to_stream(vals, &st); - st2 = malloc(1 + st_len + FLDSZ); - if (st2 == NULL) { - free(st); - return KADM_NOMEM; - } - *st2 = (u_char) GET_ENT; /* here's the opcode */ - memcpy((char *)st2 + 1, st, st_len); /* append st on */ - free(st); - for (loop = FLDSZ - 1; loop >= 0; loop--) - *(st2 + st_len + FLDSZ - loop) = fl[loop]; /* append the flags */ - - if ((retc = kadm_cli_conn()) != KADM_SUCCESS) { - free(st2); - return(retc); - } - retc = kadm_cli_send(st2, st_len + 1 + FLDSZ, &ret_st, &ret_sz); - free(st2); - if (retc == KADM_SUCCESS) { - /* ret_st has vals */ - if (stream_to_vals(ret_st, vals, ret_sz) < 0) - retc = KADM_LENGTH_ERROR; - } - free(ret_st); - kadm_cli_disconn(); - return(retc); -} |
