diff options
Diffstat (limited to 'lib/libncp/ncpl_bind.c')
-rw-r--r-- | lib/libncp/ncpl_bind.c | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/lib/libncp/ncpl_bind.c b/lib/libncp/ncpl_bind.c new file mode 100644 index 0000000..40d0b73 --- /dev/null +++ b/lib/libncp/ncpl_bind.c @@ -0,0 +1,263 @@ +/* + * Copyright (c) 1999, Boris Popov + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Boris Popov. + * 4. Neither the name of the author nor the names of any co-contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ +#include <sys/types.h> +#include <errno.h> +#include <string.h> +#include <netncp/ncp_lib.h> + +static void nw_passencrypt(char *old, char *new, char *out); + +int +ncp_get_bindery_object_id(int connid, u_int16_t object_type, const char *object_name, + struct ncp_bindery_object *target) { + int error; + DECLARE_RQ; + + ncp_init_request_s(conn, 53); + ncp_add_word_hl(conn, object_type); + ncp_add_pstring(conn, object_name); + + if ((error = ncp_request(connid, 23, conn)) != 0) { + return error; + } + if (conn->rpsize < 54) { + return EACCES; + } + target->object_id = ncp_reply_dword_hl(conn, 0); + target->object_type = ncp_reply_word_hl(conn, 4); + memcpy(target->object_name, ncp_reply_data(conn, 6), 48); + return 0; +} + +int +ncp_read_property_value(int connid, int object_type, const char *object_name, + int segment, const char *prop_name, + struct nw_property *target) +{ + int error; + struct ncp_buf conn; + ncp_init_request_s(&conn, 61); + ncp_add_word_hl(&conn, object_type); + ncp_add_pstring(&conn, object_name); + ncp_add_byte(&conn, segment); + ncp_add_pstring(&conn, prop_name); + + if ((error = ncp_request(connid,23,&conn)) != 0) { + return error; + } + memcpy(&(target->value), ncp_reply_data(&conn, 0), 128); + target->more_flag = ncp_reply_byte(&conn, 128); + target->property_flag = ncp_reply_byte(&conn, 129); + return 0; +} + +int +ncp_scan_bindery_object(int connid, u_int32_t last_id, u_int16_t object_type, + char *search_string, struct ncp_bindery_object *target) +{ + int error; + DECLARE_RQ; + + ncp_init_request_s(conn, 55); + ncp_add_dword_hl(conn, last_id); + ncp_add_word_hl(conn, object_type); + ncp_add_pstring(conn, search_string); + error = ncp_request(connid, 23, conn); + if (error) return error; + target->object_id = ncp_reply_dword_hl(conn, 0); + target->object_type = ncp_reply_word_hl(conn, 4); + memcpy(target->object_name, ncp_reply_data(conn, 6),NCP_BINDERY_NAME_LEN); + target->object_flags = ncp_reply_byte(conn, 54); + target->object_security = ncp_reply_byte(conn, 55); + target->object_has_prop = ncp_reply_byte(conn, 56); + return 0; +} + +int +ncp_get_bindery_object_name(int connid, u_int32_t object_id, + struct ncp_bindery_object *target) { + int error; + DECLARE_RQ; + + ncp_init_request_s(conn, 54); + ncp_add_dword_hl(conn, object_id); + if ((error = ncp_request(connid, 23, conn)) != 0) + return error; + target->object_id = ncp_reply_dword_hl(conn, 0); + target->object_type = ncp_reply_word_hl(conn, 4); + memcpy(target->object_name, ncp_reply_data(conn, 6), 48); + return 0; +} + +int +ncp_change_obj_passwd(NWCONN_HANDLE connid, + const struct ncp_bindery_object *object, + const u_char *key, + const u_char *oldpasswd, + const u_char *newpasswd) +{ + long id = htonl(object->object_id); + u_char cryptkey[8]; + u_char newpwd[16]; /* new passwd as stored by server */ + u_char oldpwd[16]; /* old passwd as stored by server */ + u_char len; + DECLARE_RQ; + + memcpy(cryptkey, key, 8); + nw_keyhash((u_char *)&id, oldpasswd, strlen(oldpasswd), oldpwd); + nw_keyhash((u_char *)&id, newpasswd, strlen(newpasswd), newpwd); + nw_encrypt(cryptkey, oldpwd, cryptkey); + nw_passencrypt(oldpwd, newpwd, newpwd); + nw_passencrypt(oldpwd + 8, newpwd + 8, newpwd + 8); + if ((len = strlen(newpasswd)) > 63) { + len = 63; + } + len = ((len ^ oldpwd[0] ^ oldpwd[1]) & 0x7f) | 0x40; + + ncp_init_request_s(conn, 75); + ncp_add_mem(conn, cryptkey, 8); + ncp_add_word_hl(conn, object->object_type); + ncp_add_pstring(conn, object->object_name); + ncp_add_byte(conn, len); + ncp_add_mem(conn, newpwd, 16); + return ncp_request(connid, 23, conn); +} + +/* + * target is a 8-byte buffer + */ +int +ncp_get_encryption_key(NWCONN_HANDLE cH, char *target) { + int error; + DECLARE_RQ; + + ncp_init_request_s(conn, 23); + + error = ncp_request(cH, 23, conn); + if (error) + return error; + if (conn->rpsize < 8) + return EACCES; + memcpy(target, ncp_reply_data(conn, 0), 8); + return 0; +} + +int +ncp_keyed_verify_password(NWCONN_HANDLE cH, char *key, char *passwd, + struct ncp_bindery_object *objinfo) { + u_long id = htonl(objinfo->object_id); + u_char cryptkey[8]; + u_char buf[128]; + DECLARE_RQ; + + nw_keyhash((u_char *)&id, passwd, strlen(passwd), buf); + nw_encrypt(key, buf, cryptkey); + + ncp_init_request_s(conn, 74); + ncp_add_mem(conn, cryptkey, sizeof(cryptkey)); + ncp_add_word_hl(conn, objinfo->object_type); + ncp_add_pstring(conn, objinfo->object_name); + + return ncp_request(cH, 23, conn); +} + +static char passkeys[256 + 16] = { + 0x0f, 0x08, 0x05, 0x07, 0x0c, 0x02, 0x0e, 0x09, + 0x00, 0x01, 0x06, 0x0d, 0x03, 0x04, 0x0b, 0x0a, + 0x02, 0x0c, 0x0e, 0x06, 0x0f, 0x00, 0x01, 0x08, + 0x0d, 0x03, 0x0a, 0x04, 0x09, 0x0b, 0x05, 0x07, + 0x05, 0x02, 0x09, 0x0f, 0x0c, 0x04, 0x0d, 0x00, + 0x0e, 0x0a, 0x06, 0x08, 0x0b, 0x01, 0x03, 0x07, + 0x0f, 0x0d, 0x02, 0x06, 0x07, 0x08, 0x05, 0x09, + 0x00, 0x04, 0x0c, 0x03, 0x01, 0x0a, 0x0b, 0x0e, + 0x05, 0x0e, 0x02, 0x0b, 0x0d, 0x0a, 0x07, 0x00, + 0x08, 0x06, 0x04, 0x01, 0x0f, 0x0c, 0x03, 0x09, + 0x08, 0x02, 0x0f, 0x0a, 0x05, 0x09, 0x06, 0x0c, + 0x00, 0x0b, 0x01, 0x0d, 0x07, 0x03, 0x04, 0x0e, + 0x0e, 0x08, 0x00, 0x09, 0x04, 0x0b, 0x02, 0x07, + 0x0c, 0x03, 0x0a, 0x05, 0x0d, 0x01, 0x06, 0x0f, + 0x01, 0x04, 0x08, 0x0a, 0x0d, 0x0b, 0x07, 0x0e, + 0x05, 0x0f, 0x03, 0x09, 0x00, 0x02, 0x06, 0x0c, + 0x05, 0x03, 0x0c, 0x08, 0x0b, 0x02, 0x0e, 0x0a, + 0x04, 0x01, 0x0d, 0x00, 0x06, 0x07, 0x0f, 0x09, + 0x06, 0x00, 0x0b, 0x0e, 0x0d, 0x04, 0x0c, 0x0f, + 0x07, 0x02, 0x08, 0x0a, 0x01, 0x05, 0x03, 0x09, + 0x0b, 0x05, 0x0a, 0x0e, 0x0f, 0x01, 0x0c, 0x00, + 0x06, 0x04, 0x02, 0x09, 0x03, 0x0d, 0x07, 0x08, + 0x07, 0x02, 0x0a, 0x00, 0x0e, 0x08, 0x0f, 0x04, + 0x0c, 0x0b, 0x09, 0x01, 0x05, 0x0d, 0x03, 0x06, + 0x07, 0x04, 0x0f, 0x09, 0x05, 0x01, 0x0c, 0x0b, + 0x00, 0x03, 0x08, 0x0e, 0x02, 0x0a, 0x06, 0x0d, + 0x09, 0x04, 0x08, 0x00, 0x0a, 0x03, 0x01, 0x0c, + 0x05, 0x0f, 0x07, 0x02, 0x0b, 0x0e, 0x06, 0x0d, + 0x09, 0x05, 0x04, 0x07, 0x0e, 0x08, 0x03, 0x01, + 0x0d, 0x0b, 0x0c, 0x02, 0x00, 0x0f, 0x06, 0x0a, + 0x09, 0x0a, 0x0b, 0x0d, 0x05, 0x03, 0x0f, 0x00, + 0x01, 0x0c, 0x08, 0x07, 0x06, 0x04, 0x0e, 0x02, + 0x03, 0x0e, 0x0f, 0x02, 0x0d, 0x0c, 0x04, 0x05, + 0x09, 0x06, 0x00, 0x01, 0x0b, 0x07, 0x0a, 0x08 +}; + +static void +nw_passencrypt(char *old, char *new, char *out) +{ + char *p, v; + char copy[8]; + int i, di, ax; + +#define HIGH(x) (((x) >> 4) & 0xf) +#define LOW(x) ((x) & 0xf) + memcpy(copy, new, 8); + + for (i = 0; i < 16; i++) { + for (di = 0, ax = 0, p = old; di < 8; di++, ax += 0x20, p++) { + v = copy[di] ^ *p; + copy[di] = (passkeys[HIGH(v) + ax + 0x10] << 4) | + passkeys[LOW(v) + ax]; + } + v = old[7]; + for (p = old + 7; p > old; p--) { + *p = HIGH(p[-1]) | ((*p) << 4); + } + *old = HIGH(v) | (*old) << 4; + bzero(out, 8); + + for (di = 0; di < 16; di++) { + v = passkeys[di + 0x100]; + v = (v & 1) ? HIGH(copy[v / 2]) : LOW(copy[v / 2]); + out[di / 2] |= ((di & 1) ? v << 4 : v); + } + memcpy(copy, out, 8); + } +} |