diff options
Diffstat (limited to 'sys/netncp/ncp_ncp.c')
-rw-r--r-- | sys/netncp/ncp_ncp.c | 503 |
1 files changed, 0 insertions, 503 deletions
diff --git a/sys/netncp/ncp_ncp.c b/sys/netncp/ncp_ncp.c deleted file mode 100644 index 943639e..0000000 --- a/sys/netncp/ncp_ncp.c +++ /dev/null @@ -1,503 +0,0 @@ -/*- - * Copyright (c) 1999, 2000, 2001 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. - * - * 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. - * - * Core of NCP protocol - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/errno.h> -#include <sys/systm.h> -#include <sys/proc.h> -#include <sys/signalvar.h> -#include <sys/sysctl.h> -#include <sys/mbuf.h> -#include <sys/lock.h> -#include <sys/mutex.h> -#include <sys/uio.h> - -#include <netipx/ipx.h> -#include <netipx/ipx_var.h> - -#include <netncp/ncp.h> -#include <netncp/ncp_conn.h> -#include <netncp/ncp_sock.h> -#include <netncp/ncp_subr.h> -#include <netncp/ncp_ncp.h> -#include <netncp/ncp_rq.h> -#include <netncp/nwerror.h> - -#ifdef NCP_DATA_DEBUG -static -void m_dumpm(struct mbuf *m) { - char *p; - int len; - printf("d="); - while(m) { - p=mtod(m,char *); - len=m->m_len; - printf("(%d)",len); - while(len--){ - printf("%02x ",((int)*(p++)) & 0xff); - } - m=m->m_next; - }; - printf("\n"); -} -#endif /* NCP_DATA_DEBUG */ - -int -ncp_chkintr(struct ncp_conn *conn, struct thread *td) -{ - struct proc *p; - sigset_t tmpset; - - if (td == NULL) - return 0; - p = td->td_proc; - PROC_LOCK(p); - tmpset = p->p_siglist; - SIGSETOR(tmpset, td->td_siglist); - SIGSETNAND(tmpset, td->td_sigmask); - mtx_lock(&p->p_sigacts->ps_mtx); - SIGSETNAND(tmpset, p->p_sigacts->ps_sigignore); - mtx_unlock(&p->p_sigacts->ps_mtx); - if (SIGNOTEMPTY(td->td_siglist) && NCP_SIGMASK(tmpset)) { - PROC_UNLOCK(p); - return EINTR; - } - PROC_UNLOCK(p); - return 0; -} - -/* - * Process initial NCP handshake (attach) - * NOTE: Since all functions below may change conn attributes, they - * should be called with LOCKED connection, also they use procp & ucred - */ -int -ncp_ncp_connect(struct ncp_conn *conn) -{ - struct ncp_rq *rqp; - struct ncp_rphdr *rp; - int error; - - error = ncp_rq_alloc_any(NCP_ALLOC_SLOT, 0, conn, conn->td, conn->ucred, &rqp); - if (error) - return error; - - conn->flags &= ~(NCPFL_SIGNACTIVE | NCPFL_SIGNWANTED | - NCPFL_ATTACHED | NCPFL_LOGGED | NCPFL_INVALID); - conn->seq = 0; - error = ncp_request_int(rqp); - if (!error) { - rp = mtod(rqp->rp.md_top, struct ncp_rphdr*); - conn->connid = rp->conn_low + (rp->conn_high << 8); - } - ncp_rq_done(rqp); - if (error) - return error; - conn->flags |= NCPFL_ATTACHED | NCPFL_WASATTACHED; - return 0; -} - -int -ncp_ncp_disconnect(struct ncp_conn *conn) -{ - struct ncp_rq *rqp; - int error; - - NCPSDEBUG("for connid=%d\n",conn->nc_id); -#ifdef NCPBURST - ncp_burst_disconnect(conn); -#endif - if (conn->flags & NCPFL_ATTACHED) { - error = ncp_rq_alloc_any(NCP_FREE_SLOT, 0, conn, conn->td, conn->ucred, &rqp); - if (!error) { - ncp_request_int(rqp); - ncp_rq_done(rqp); - } - } - ncp_conn_invalidate(conn); - ncp_sock_disconnect(conn); - return 0; -} - -/* - * All negotiation functions expect a locked connection - */ - -int -ncp_negotiate_buffersize(struct ncp_conn *conn, int size, int *target) -{ - struct ncp_rq *rqp; - u_int16_t bsize; - int error; - - error = ncp_rq_alloc(0x21, conn, conn->td, conn->ucred, &rqp); - if (error) - return error; - mb_put_uint16be(&rqp->rq, size); - error = ncp_request(rqp); - if (error) - return error; - md_get_uint16be(&rqp->rp, &bsize); - *target = min(bsize, size); - ncp_rq_done(rqp); - return error; -} - -static int -ncp_negotiate_size_and_options(struct ncp_conn *conn, int size, int options, - int *ret_size, u_int8_t *ret_options) -{ - struct ncp_rq *rqp; - u_int16_t rs; - int error; - - error = ncp_rq_alloc(0x61, conn, conn->td, conn->ucred, &rqp); - if (error) - return error; - mb_put_uint16be(&rqp->rq, size); - mb_put_uint8(&rqp->rq, options); - rqp->nr_minrplen = 2 + 2 + 1; - error = ncp_request(rqp); - if (error) - return error; - md_get_uint16be(&rqp->rp, &rs); - *ret_size = (rs == 0) ? size : min(rs, size); - md_get_uint16be(&rqp->rp, &rs); /* skip echo socket */ - md_get_uint8(&rqp->rp, ret_options); - ncp_rq_done(rqp); - return error; -} - -int -ncp_renegotiate_connparam(struct ncp_conn *conn, int buffsize, u_int8_t in_options) -{ - u_int8_t options; - int neg_buffsize, error, sl, ckslevel; - size_t ilen; - - sl = conn->li.sig_level; - if (sl >= 2) - in_options |= NCP_SECURITY_LEVEL_SIGN_HEADERS; - if (conn->li.saddr.sa_family == AF_IPX) { - ilen = sizeof(ckslevel); - error = kernel_sysctlbyname(curthread, "net.ipx.ipx.checksum", - &ckslevel, &ilen, NULL, 0, NULL, 0); - if (error) - return error; - if (ckslevel == 2) - in_options |= NCP_IPX_CHECKSUM; - } - error = ncp_negotiate_size_and_options(conn, buffsize, in_options, - &neg_buffsize, &options); - if (!error) { - if (conn->li.saddr.sa_family == AF_IPX && - ((options ^ in_options) & NCP_IPX_CHECKSUM)) { - if (ckslevel == 2) { - printf("Server refuses to support IPX checksums\n"); - return NWE_REQUESTER_FAILURE; - } - in_options |= NCP_IPX_CHECKSUM; - error = 1; - } - if ((options ^ in_options) & 2) { - if (sl == 0 || sl == 3) - return NWE_SIGNATURE_LEVEL_CONFLICT; - if (sl == 1) { - in_options |= NCP_SECURITY_LEVEL_SIGN_HEADERS; - error = 1; - } - } - if (error) { - error = ncp_negotiate_size_and_options(conn, - buffsize, in_options, &neg_buffsize, &options); - if ((options ^ in_options) & 3) { - return NWE_SIGNATURE_LEVEL_CONFLICT; - } - } - } else { - in_options &= ~NCP_SECURITY_LEVEL_SIGN_HEADERS; - error = ncp_negotiate_buffersize(conn, NCP_DEFAULT_BUFSIZE, - &neg_buffsize); - } - if (error) return error; - if ((neg_buffsize < 512) || (neg_buffsize > NCP_MAX_BUFSIZE)) - return EINVAL; - conn->buffer_size = neg_buffsize; - if (in_options & NCP_SECURITY_LEVEL_SIGN_HEADERS) - conn->flags |= NCPFL_SIGNWANTED; - if (conn->li.saddr.sa_family == AF_IPX) - ncp_sock_checksum(conn, in_options & NCP_IPX_CHECKSUM); - return 0; -} - -void -ncp_check_rq(struct ncp_conn *conn) -{ - return; - if (conn->flags & NCPFL_INTR) - return; - /* first, check for signals */ - if (ncp_chkintr(conn, conn->td)) - conn->flags |= NCPFL_INTR; - return; -} - -int -ncp_get_bindery_object_id(struct ncp_conn *conn, - u_int16_t object_type, char *object_name, - struct ncp_bindery_object *target, - struct thread *td, struct ucred *cred) -{ - struct ncp_rq *rqp; - int error; - - error = ncp_rq_alloc_subfn(23, 53, conn, conn->td, conn->ucred, &rqp); - mb_put_uint16be(&rqp->rq, object_type); - ncp_rq_pstring(rqp, object_name); - rqp->nr_minrplen = 54; - error = ncp_request(rqp); - if (error) - return error; - md_get_uint32be(&rqp->rp, &target->object_id); - md_get_uint16be(&rqp->rp, &target->object_type); - md_get_mem(&rqp->rp, (caddr_t)target->object_name, 48, MB_MSYSTEM); - ncp_rq_done(rqp); - return 0; -} - -/* - * target is a 8-byte buffer - */ -int -ncp_get_encryption_key(struct ncp_conn *conn, char *target) -{ - struct ncp_rq *rqp; - int error; - - error = ncp_rq_alloc_subfn(23, 23, conn, conn->td, conn->ucred, &rqp); - if (error) - return error; - rqp->nr_minrplen = 8; - error = ncp_request(rqp); - if (error) - return error; - md_get_mem(&rqp->rp, target, 8, MB_MSYSTEM); - ncp_rq_done(rqp); - return error; -} - -/* - * Initialize packet signatures. They a slightly modified MD4. - * The first 16 bytes of logindata are the shuffled password, - * the last 8 bytes the encryption key as received from the server. - */ -static int -ncp_sign_start(struct ncp_conn *conn, char *logindata) -{ - char msg[64]; - u_int32_t state[4]; - - memcpy(msg, logindata, 24); - memcpy(msg + 24, "Authorized NetWare Client", 25); - bzero(msg + 24 + 25, sizeof(msg) - 24 - 25); - - conn->sign_state[0] = 0x67452301; - conn->sign_state[1] = 0xefcdab89; - conn->sign_state[2] = 0x98badcfe; - conn->sign_state[3] = 0x10325476; - ncp_sign(conn->sign_state, msg, state); - conn->sign_root[0] = state[0]; - conn->sign_root[1] = state[1]; - conn->flags |= NCPFL_SIGNACTIVE; - return 0; -} - - -int -ncp_login_encrypted(struct ncp_conn *conn, struct ncp_bindery_object *object, - const u_char *key, const u_char *passwd, - struct thread *td, struct ucred *cred) -{ - struct ncp_rq *rqp; - struct mbchain *mbp; - u_int32_t tmpID = htonl(object->object_id); - u_char buf[16 + 8]; - u_char encrypted[8]; - int error; - - nw_keyhash((u_char*)&tmpID, passwd, strlen(passwd), buf); - nw_encrypt(key, buf, encrypted); - - error = ncp_rq_alloc_subfn(23, 24, conn, td, cred, &rqp); - if (error) - return error; - mbp = &rqp->rq; - mb_put_mem(mbp, encrypted, 8, MB_MSYSTEM); - mb_put_uint16be(mbp, object->object_type); - ncp_rq_pstring(rqp, object->object_name); - error = ncp_request(rqp); - if (!error) - ncp_rq_done(rqp); - if ((conn->flags & NCPFL_SIGNWANTED) && - (error == 0 || error == NWE_PASSWORD_EXPIRED)) { - bcopy(key, buf + 16, 8); - error = ncp_sign_start(conn, buf); - } - return error; -} - -int -ncp_login_unencrypted(struct ncp_conn *conn, u_int16_t object_type, - const char *object_name, const u_char *passwd, - struct thread *td, struct ucred *cred) -{ - struct ncp_rq *rqp; - int error; - - error = ncp_rq_alloc_subfn(23, 20, conn, td, cred, &rqp); - if (error) - return error; - mb_put_uint16be(&rqp->rq, object_type); - ncp_rq_pstring(rqp, object_name); - ncp_rq_pstring(rqp, passwd); - error = ncp_request(rqp); - if (!error) - ncp_rq_done(rqp); - return error; -} - -int -ncp_read(struct ncp_conn *conn, ncp_fh *file, struct uio *uiop, struct ucred *cred) -{ - struct ncp_rq *rqp; - struct mbchain *mbp; - u_int16_t retlen = 0 ; - int error = 0, len = 0, tsiz, burstio; - - tsiz = uiop->uio_resid; -#ifdef NCPBURST - burstio = (ncp_burst_enabled && tsiz > conn->buffer_size); -#else - burstio = 0; -#endif - - while (tsiz > 0) { - if (!burstio) { - len = min(4096 - (uiop->uio_offset % 4096), tsiz); - len = min(len, conn->buffer_size); - error = ncp_rq_alloc(72, conn, uiop->uio_td, cred, &rqp); - if (error) - break; - mbp = &rqp->rq; - mb_put_uint8(mbp, 0); - mb_put_mem(mbp, (caddr_t)file, 6, MB_MSYSTEM); - mb_put_uint32be(mbp, uiop->uio_offset); - mb_put_uint16be(mbp, len); - rqp->nr_minrplen = 2; - error = ncp_request(rqp); - if (error) - break; - md_get_uint16be(&rqp->rp, &retlen); - if (uiop->uio_offset & 1) - md_get_mem(&rqp->rp, NULL, 1, MB_MSYSTEM); - error = md_get_uio(&rqp->rp, uiop, retlen); - ncp_rq_done(rqp); - } else { -#ifdef NCPBURST - error = ncp_burst_read(conn, file, tsiz, &len, &retlen, uiop, cred); -#endif - } - if (error) - break; - tsiz -= retlen; - if (retlen < len) - break; - } - return (error); -} - -int -ncp_write(struct ncp_conn *conn, ncp_fh *file, struct uio *uiop, struct ucred *cred) -{ - struct ncp_rq *rqp; - struct mbchain *mbp; - int error = 0, len, tsiz, backup; - - if (uiop->uio_iovcnt != 1) { - printf("%s: can't handle iovcnt>1 !!!\n", __func__); - return EIO; - } - tsiz = uiop->uio_resid; - while (tsiz > 0) { - len = min(4096 - (uiop->uio_offset % 4096), tsiz); - len = min(len, conn->buffer_size); - if (len == 0) { - printf("gotcha!\n"); - } - /* rq head */ - error = ncp_rq_alloc(73, conn, uiop->uio_td, cred, &rqp); - if (error) - break; - mbp = &rqp->rq; - mb_put_uint8(mbp, 0); - mb_put_mem(mbp, (caddr_t)file, 6, MB_MSYSTEM); - mb_put_uint32be(mbp, uiop->uio_offset); - mb_put_uint16be(mbp, len); - error = mb_put_uio(mbp, uiop, len); - if (error) { - ncp_rq_done(rqp); - break; - } - error = ncp_request(rqp); - if (!error) - ncp_rq_done(rqp); - if (len == 0) - break; - if (error) { - backup = len; - uiop->uio_iov->iov_base = - (char *)uiop->uio_iov->iov_base - backup; - uiop->uio_iov->iov_len += backup; - uiop->uio_offset -= backup; - uiop->uio_resid += backup; - break; - } - tsiz -= len; - } - if (error) - uiop->uio_resid = tsiz; - switch (error) { - case NWE_INSUFFICIENT_SPACE: - error = ENOSPC; - break; - } - return (error); -} |